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CN-122026266-A - Meter cable fixing method

CN122026266ACN 122026266 ACN122026266 ACN 122026266ACN-122026266-A

Abstract

The invention relates to the technical field of meters and discloses a method for fixing a cable of a meter, which comprises the following fixing steps of 1) sleeving an elastic ring and a notch area of the elastic ring on the cable, wherein the cable is provided with a middle section, an outer section and an inner section, a core wire and an end part of the core wire are arranged in the cable, 2) a shell is provided with a shell cavity, a connecting wall and a through hole of the connecting wall, a filling area is arranged in the shell cavity, 3) a base is arranged in the shell cavity, the base supports the inner section, 4) a pressure head is arranged on the base, the pressure head presses the inner section against the base, the pressure head clamps the inner section up and down oppositely to enable the inner section to be extruded and deformed, 5) the pressure head is fixedly connected with the base to enable the inner section to be fixed between the pressure head and the base, 6) glue is filled in the filling area, the inner section is wrapped by the glue, the middle section is sealed between the elastic ring and the through hole, and the reliable fixing of the cable of the meter and the shell is realized by a triple fixing mode of fixing the elastic ring fixing, the pressure head clamping and glue wrapping sealing.

Inventors

  • SUN QUANJIN

Assignees

  • 深圳市迪太科技有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (10)

  1. 1. The instrument cable fixing method is characterized by comprising the following fixing steps of: 1) An opening annular elastic ring is sleeved on the cable, the elastic ring is provided with a notch area which is arranged in a penetrating way, and the cable is provided with a middle section for the elastic ring to be sleeved; one end of the cable is provided with an outer section connected with the outside, the other end of the cable is provided with an inner section, the middle section is positioned between the outer section and the inner section, the cable is provided with a core wire, and the core wire is provided with an end part extending out of the inner section; 2) Providing a shell, wherein a shell cavity is formed in the shell, the shell is provided with a connecting wall, a through hole is formed in the connecting wall, and the elastic ring is plugged into the through hole so that the middle section is fixed on the connecting wall; The inner section and the core wire extend into the housing cavity, and the outer section is located outside the housing; the shell cavity is provided with a filling area, the inner section is arranged in the filling area, and the core wire extends outside the filling area; 3) A base is arranged in the shell cavity, the base is enclosed on the periphery of the filling area, the inner section is abutted against the base, and the base supports the inner section from bottom to top; 4) The pressure head is arranged on the base and surrounds the periphery of the filling area, the pressure head is propped against the inner section from top to bottom, and the pressure head and the base clamp the inner section up and down in opposite directions so as to enable the inner section to be extruded and deformed; 5) Fixedly connecting the pressure head with the base so that the inner section is fixed between the pressure head and the base; 6) And filling the filling area with colloid, wherein the colloid wraps the inner section, seals between the middle section and the elastic ring, and seals between the elastic ring and the through hole.
  2. 2. The method of fixing a meter cable according to claim 1, wherein in the fixing step 1), the elastic ring has an inward side facing the filling area, the elastic ring has an outward side exposed to the outside of the case, the inward side is provided with a plurality of inner radial grooves, and the plurality of inner radial grooves are circumferentially arranged at intervals along the circumference of the elastic ring; the elastic ring is characterized in that a plurality of outer radial grooves are formed in the outer side face, the outer radial grooves are circumferentially arranged at intervals along the circumferential direction of the elastic ring, the inner radial grooves and the outer radial grooves are respectively arranged along the radial direction of the elastic ring in an extending mode, and the inner radial grooves and the outer radial grooves are arranged in a staggered mode along the circumferential direction of the elastic ring.
  3. 3. The method of fixing a meter cable according to claim 1, wherein in the fixing step 2), an inner wall of the connection wall has an inner wall protruding in a filling area, the through hole penetrates the inner wall, and the elastic ring penetrates the inner wall, and in the fixing step 6), the gel filling covers the inner wall.
  4. 4. The method of fixing a meter cable according to claim 2, wherein in the fixing step 2), the elastic ring passes through an inner wall and has an extension portion extending into the filling area, the middle section passes through the extension portion, the inward side is formed on the extension portion, and in the fixing step 6), the gel is filled around the extension portion.
  5. 5. The method of fixing a meter cable according to any one of claims 1 to 4, wherein in the fixing step 3), a concave region is provided on a top of the base, the lower portion of the inner section is placed in the concave region, and an upper portion of the inner section is exposed above the concave region; In the fixing step 4), an upward concave area is arranged at the bottom of the pressure head and is positioned above the downward concave area, and when the pressure head and the base clamp the inner section up and down in opposite directions, the upper part of the inner section is arranged in the upward concave area.
  6. 6. The method of fixing a meter cable according to claim 5, wherein in the fixing step 3), a lower rib protruding upward is provided at the bottom of the recessed area, and the lower rib is arranged to extend along the bending direction of the recessed area; In the fixing step 4), the top of the pressure head is provided with an upper convex rib protruding downwards, and the upper convex rib is arranged in an extending way along the bending direction of the upper concave area; in the process of clamping the inner section of the pressure head and the base up and down in opposite directions, the lower convex rib and the upper convex rib squeeze the inner section to deform until the inner section is embedded, the bottom of the concave area is abutted to the inner section, and the top of the upper concave area is abutted to the inner section.
  7. 7. The method of fixing a meter cable according to any one of claims 1 to 4, wherein in the fixing step 4), the base has a fixing column, the pressure head has a fixing cylinder, an upper part of the fixing cylinder has an upper cavity penetrating upward, and a lower part of the fixing cylinder has a lower cavity penetrating downward; The bottom of the partition plate is provided with a deformation ring, the middle part of the deformation ring is provided with an elastic hole, the lower part of the deformation ring is provided with a plurality of obliquely arranged elastic columns, and the elastic coefficient of the elastic columns is larger than that of the deformation ring; inserting the fixed column into the lower cavity, and moving the pressure head downwards until the top of the fixed column abuts against the deformation ring; In the fixing step 5), the fixing cylinder is fixedly connected with the fixing column by using a bolt, the bolt is provided with an end head, the bolt sequentially passes through the upper cavity, the partition plate and the deformation ring, the bolt is inserted into the fixing column and is in threaded connection with the fixing column, the bolt is screwed downwards, the pressure head moves downwards until the pressure head and the base press and deform the inner section, and the deformation ring is pressed up and down by the partition plate and the fixing column and is in an elastic compression deformation state.
  8. 8. The method for fixing the instrument cable according to any one of claims 1 to 4, wherein in the fixing step 2), the inner section is provided with a bending section which is positioned in a filling area and is in bending arrangement, and the middle part of the bending section forms a bending position; the side part of the hollow column protrudes to form an arc-shaped arranged rubber block, the outer side of the rubber block is integrated with the hollow column, the inner side of the rubber block is enclosed to form an arc-shaped groove, and the side part of the bending position is embedded in the arc-shaped groove and is fixedly connected with the rubber block into a whole in a fitting way; In the fixing step 6), after the colloid is filled in the filling area, the colloid wraps the bending section, a hollow area without the colloid is formed in the filling area, the bending position, the hollow column and the colloid block are exposed in the hollow area, and the hollow column and the colloid are connected into a whole.
  9. 9. The method for fixing the instrument cable according to any one of claims 1 to 4, wherein in the fixing step 1), a plurality of radial channels are arranged in the elastic ring, the radial channels are circumferentially arranged at intervals along the circumference of the elastic ring, and the radial channels are arranged in a penetrating manner along the radial direction of the elastic ring; The outer ends of the elastic strips penetrate through the periphery of the elastic ring to form convex heads, and the periphery of the elastic ring is provided with elastic bands which are respectively connected with the convex heads of the elastic strips; after the elastic ring is sleeved on the middle section, the plurality of arc-shaped sheets are abutted against the periphery of the middle section and are circumferentially arranged at intervals along the circumference of the middle section; In the fixing step 2), a plurality of concave positions are formed in the inner side wall of the through hole, when the elastic ring is embedded in the through hole, a plurality of protruding heads of the elastic strips are respectively embedded in the plurality of concave positions correspondingly, the elastic strips are extruded to be in elastic bending deformation, the arc-shaped piece is used for pressing inwards for a middle section time, and the protruding heads apply outward pressure to the inner side wall of the through hole.
  10. 10. The method according to any one of claims 1 to 4, wherein in the fixing step 2), a connection region is provided in the housing chamber, the connection region is disposed adjacent to the filling region, and the core wire extends into the connection region; in the fixing step 6), after the colloid is filled in the filling area, the core wire passes through the longitudinal columns and the rotating head and is outwards extended, the core wire is bent between the two longitudinal columns, the core wire is fixedly connected with the longitudinal columns, and the core wire is movably connected with the rotating head.

Description

Meter cable fixing method Technical Field The invention relates to the technical field of meters, in particular to a method for fixing a meter cable. Background The instrument is used as important equipment in the fields of production process monitoring, metering, detection and the like, the inside of the instrument is usually electrically connected with the outside through a cable, and the fixed quality between the cable and the shell is an important link for determining the overall reliability of the instrument. In the prior art, the instrument cable is fixed in a single fixing mode, for example, only by friction filling fit between the cable and the through hole of the shell, or only by single-point clamping of the cable in the shell, so that the cable is difficult to resist external forces from different directions, and the cable is easy to break or contact poorly. Moreover, after the cable penetrates into the shell cavity, the inner section of the cable is always in a free suspension state, independent support and constraint are lacked, and in the repeated use process, the inner wiring is easy to loosen, so that the reliability of stable connection of the cable is affected. In addition, in some prior art, the fixing function and the sealing function are integrated in the same component, for example, the sealing and the clamping and fixing of the cable are realized by compressing the rubber sealing ring, so that the self-rigidity of the rubber material is limited, the rubber material is easy to permanently deform in long-term use to cause the attenuation of the clamping force, and if the rubber piece is excessively compressed to improve the clamping force, the cable is easy to damage, thereby influencing the fixing and sealing effects. Disclosure of Invention The invention aims to provide a method for fixing an instrument cable, which aims to solve the problem that in the prior art, the fixing effect of the instrument cable and a shell is poor. The invention is realized in such a way that the instrument cable fixing method comprises the following fixing steps: 1) An opening annular elastic ring is sleeved on the cable, the elastic ring is provided with a notch area which is arranged in a penetrating way, and the cable is provided with a middle section for the elastic ring to be sleeved; one end of the cable is provided with an outer section connected with the outside, the other end of the cable is provided with an inner section, the middle section is positioned between the outer section and the inner section, the cable is provided with a core wire, and the core wire is provided with an end part extending out of the inner section; 2) Providing a shell, wherein a shell cavity is formed in the shell, the shell is provided with a connecting wall, a through hole is formed in the connecting wall, and the elastic ring is plugged into the through hole so that the middle section is fixed on the connecting wall; The inner section and the core wire extend into the housing cavity, and the outer section is located outside the housing; the shell cavity is provided with a filling area, the inner section is arranged in the filling area, and the core wire extends outside the filling area; 3) A base is arranged in the shell cavity, the base is enclosed on the periphery of the filling area, the inner section is abutted against the base, and the base supports the inner section from bottom to top; 4) The pressure head is arranged on the base and surrounds the periphery of the filling area, the pressure head is propped against the inner section from top to bottom, and the pressure head and the base clamp the inner section up and down in opposite directions so as to enable the inner section to be extruded and deformed; 5) Fixedly connecting the pressure head with the base so that the inner section is fixed between the pressure head and the base; 6) And filling the filling area with colloid, wherein the colloid wraps the inner section, seals between the middle section and the elastic ring, and seals between the elastic ring and the through hole. Further, in the fixing step 1), the elastic ring has an inward side facing the filling area, the elastic ring has an outward side exposed outside the housing, and a plurality of inner radial grooves are formed on the inward side and circumferentially arranged along the circumferential direction of the elastic ring at intervals; the elastic ring is characterized in that a plurality of outer radial grooves are formed in the outer side face, the outer radial grooves are circumferentially arranged at intervals along the circumferential direction of the elastic ring, the inner radial grooves and the outer radial grooves are respectively arranged along the radial direction of the elastic ring in an extending mode, and the inner radial grooves and the outer radial grooves are arranged in a staggered mode along the circumferential direction of the elastic ring. Further, in the fixing step 2),