Search

CN-224209010-U - Bellows and bellows threading processing equipment

CN224209010UCN 224209010 UCN224209010 UCN 224209010UCN-224209010-U

Abstract

The utility model discloses a corrugated pipe and corrugated pipe threading processing equipment, and relates to the technical field of pipe fittings. The corrugated pipe comprises a corrugated pipe body and a spiral metal wire, compared with the scheme that the corrugated pipe is formed by spirally winding steel wires and then encapsulating the steel wires outside the corrugated pipe, the corrugated pipe adopts the processing scheme that the corrugated pipe body is firstly prepared and then the metal wires are spirally wound in the inner thread grooves of the corrugated pipe body, and in the corrugated pipe which is processed, the spiral metal wires are exposed on the inner wall of the corrugated pipe body and are not covered by plastic encapsulation, and the spiral metal wires can effectively support the corrugated pipe body, so that the overall structural strength of the corrugated pipe is improved, and the negative pressure bearing capacity of the corrugated pipe is higher. The corrugated pipe threading processing equipment can realize threading processing of the spiral metal wire in the internal thread groove of the corrugated pipe body, and is novel and reasonable in structure, reliable and efficient in operation and capable of improving the processing efficiency of the corrugated pipe.

Inventors

  • JUAN FENGHUI

Assignees

  • 十堰华利通液压系统有限公司

Dates

Publication Date
20260508
Application Date
20250522

Claims (10)

  1. 1. A corrugated pipe, which is used for the manufacture of a corrugated pipe, characterized by comprising the following steps: The corrugated pipe comprises a corrugated pipe body (1), wherein an inner thread groove (11) is formed in the inner wall of the corrugated pipe body (1), and an outer wall of the corrugated pipe body (1) is provided with an outwards convex circular ring spiral line (12); The spiral metal wire is wound along the internal thread groove (11) and is embedded and fixed in the internal thread groove (11).
  2. 2. Bellows according to claim 1, characterized in that the pitch of the internal thread groove (11) is identical to the pitch of the circular ring spiral (12), and in that the spiral trajectories of the internal thread groove (11) and the circular ring spiral (12) coincide inside and outside.
  3. 3. Bellows according to claim 1 or 2, characterized in that the spiral wire is clamped in interference with the internal thread groove (11).
  4. 4. A bellows according to claim 1 or 2, wherein the helical wire is a helical wire.
  5. 5. A corrugated pipe threading processing apparatus capable of processing the corrugated pipe of any one of claims 1 to 4, characterized in that the corrugated pipe threading processing apparatus comprises: The metal wire winding shaping part (3) comprises a core rod (31) and a rotary drive (32), wherein a metal wire winding groove (311) matched with the internal thread groove (11) is formed in the outer wall of the core rod (31), and the rotary drive (32) is connected with the tail end of the core rod (31) and is used for driving the core rod (31) to rotate; A wire feeding section (4) for feeding a wire (2) to the mandrel (31) during rotation of the mandrel (31) so that the wire (2) is wound along the wire winding groove (311) and fitted into the wire winding groove (311); The corrugated pipe threading part (5) comprises a corrugated pipe fixing mechanism (51) and a moving mechanism (52), wherein the corrugated pipe fixing mechanism (51) is located on the outer periphery of the core rod (31) and is used for installing the corrugated pipe body (1) so that the corrugated pipe body (1) is coaxially sleeved outside the core rod (31), and the moving mechanism (52) can drive the corrugated pipe fixing mechanism (51) to move along the axial direction of the core rod (31) in the rotating process of the core rod (31) so that the metal wire (2) wound in the metal wire winding groove (311) is wound along the internal thread groove (11) and is embedded and fixed in the internal thread groove (11).
  6. 6. The corrugated pipe threading processing device according to claim 5, wherein the corrugated pipe fixing mechanism (51) comprises a connecting arm (511) and a ring sleeve (512) coaxially arranged with the core rod (31), the ring sleeve (512) is used for being sleeved on the outer wall of the corrugated pipe body (1), a ring sleeve spiral groove (5121) which is matched with the circular ring spiral line (12) in a concave-convex mode is formed in the inner wall of the ring sleeve (512), and the ring sleeve (512) is connected with the moving mechanism (52) through the connecting arm (511).
  7. 7. The bellows threading equipment according to claim 6, characterized in that the wire winding shaping portion (3) further comprises a mandrel holder (33) for supporting the mandrel (31), the mandrel holder (33) comprising: -a support (331) for mounting the mandrel holder (33); The guide rollers (332) are rotatably arranged at the top of the support (331) and are parallel to the axial direction of the core rod (31), the guide rollers (332) are arranged at two sides of the top of the support (331), the guide rollers (332) at two sides are used for supporting the core rod (31), and any guide roller (332) is used for being in rolling fit with the core rod (31).
  8. 8. The bellows threading equipment according to claim 7, characterized in that the mandrel holder (33) further comprises a guide roller adjustment mechanism (333), at least one of the guide rollers (332) being mounted on the support (331) by means of the guide roller adjustment mechanism (333), the guide roller adjustment mechanism (333) comprising: The pair of vertical sliding grooves (3331) are symmetrically arranged at the top of the support (331), and pin holes I (3332) are formed in two sides of the top of any one vertical sliding groove (3331); The pair of roller shaft seats (3333) are respectively and slidably assembled in the two vertical sliding grooves (3331), and two ends of the two roller shaft seats (3333) which are far away from each other are respectively provided with a pin hole II which is used for being aligned with the pin hole I (3332); the pin shaft (3334) is used for fixing the roller shaft seat (3333) and the vertical sliding groove (3331) in a plugging manner so as to enable the guide roller (332) to be in rolling fit with the core rod (31) at a supporting position or enable the roller shaft seat (3333) to be detached from the vertical sliding groove (3331) so as to enable the guide roller (332) to descend along the vertical sliding groove (3331) and enable the ring sleeve (512) to pass through; The core rod holders (33) are arranged in plurality at intervals along the axial direction of the core rod (31).
  9. 9. The corrugated tube threading processing apparatus according to any one of claims 5 to 8, wherein the moving mechanism (52) includes: A slide rail (521), the slide rail (521) being arranged parallel to the axial direction of the core rod (31); The movable trolley (522) comprises a trolley platform (5221), wheels (5222) and a wheel drive (5223), wherein the corrugated pipe fixing mechanism (51) and the metal wire feeding part (4) are arranged on the trolley platform (5221) and are axially arranged along the core rod (31), the corrugated pipe fixing mechanism (51) is located at one end, far away from the rotary drive (32), of the metal wire feeding part (4), the wheels (5222) are mounted at the bottom of the trolley platform (5221), the wheels (5222) are in rolling fit with the slide rails (521), and the wheel drive (5223) is used for driving the wheels (5222) to roll along the slide rails (521) so as to drive the corrugated pipe fixing mechanism (51) to axially move along the core rod (31).
  10. 10. The corrugated tube threading processing apparatus according to any one of claims 5 to 8, wherein a fixing structure (312) for fixing the metal wire (2) is provided at a front end of the core rod (31).

Description

Bellows and bellows threading processing equipment Technical Field The utility model relates to the technical field of pipe fittings, in particular to a corrugated pipe and a corrugated pipe threading processing device. Background The common corrugated pipe is characterized in that after the steel wire is spirally wound, the outer surface of the steel wire is encapsulated, so that the inner wall and the outer wall of the spiral steel wire are encapsulated and wrapped with plastic film layers. The bellows structure has small negative pressure bearing capacity and is easy to deform in a negative pressure use state. Disclosure of utility model The utility model aims to provide a novel corrugated pipe and corrugated pipe threading processing equipment, wherein an inner thread groove is formed in the inner wall of a preformed corrugated pipe body, and an embedded spiral metal wire is wound in the inner thread groove. In order to achieve the above object, the present utility model provides the following solutions: in one aspect, the present utility model provides a bellows comprising: The corrugated pipe comprises a corrugated pipe body, wherein an inner thread groove is formed in the inner wall of the corrugated pipe body, and an outer wall of the corrugated pipe body is provided with an outwards convex circular ring spiral line; The spiral metal wire is wound along the internal thread groove and is embedded and fixed in the internal thread groove. In some embodiments, the pitch of the internal thread groove is the same as the pitch of the circular ring spiral, and the internal thread groove and the spiral track of the circular ring spiral are overlapped inside and outside. In some embodiments, the helical wire is in interference grip with the internal thread groove. In some embodiments, the coiled wire is a coiled steel wire. In another aspect, the present utility model provides a corrugated tube threading apparatus capable of processing the corrugated tube described in any one of the above, the corrugated tube threading apparatus comprising: The metal wire winding shaping part comprises a core rod and a rotary drive, wherein the outer wall of the core rod is provided with a metal wire winding groove matched with the internal thread groove, and the rotary drive is connected with the tail end of the core rod and is used for driving the core rod to rotate; a wire feeding section for feeding a wire to the mandrel during rotation of the mandrel so that the wire is wound along the wire winding groove and fitted into the wire winding groove; The corrugated pipe threading part comprises a corrugated pipe fixing mechanism and a moving mechanism, wherein the corrugated pipe fixing mechanism is positioned on the outer periphery of the core rod and used for installing the corrugated pipe body so that the corrugated pipe body is coaxially sleeved outside the core rod, and the moving mechanism can drive the corrugated pipe fixing mechanism to move along the axial direction of the core rod in the rotating process of the core rod so that the metal wire wound in the metal wire winding groove is wound along the internal thread groove and is embedded and fixed in the internal thread groove. In some embodiments, the bellows fixing mechanism includes a connecting arm and a ring sleeve coaxially arranged with the mandrel, the ring sleeve is used for being sleeved on the outer wall of the bellows body, the inner wall of the ring sleeve is provided with a ring sleeve spiral groove in concave-convex fit with the circular spiral line, and the ring sleeve is connected with the moving mechanism through the connecting arm. In some embodiments, the wire wrap shaping portion further comprises a mandrel holder for supporting the mandrel, the mandrel holder comprising: the support is used for installing the core rod bracket; The guide rollers are rotatably arranged at the top of the support and are parallel to the axial direction of the core rod, the guide rollers are arranged at two sides of the top of the support, the guide rollers at two sides are used for supporting the core rod, and any guide roller is used for being in rolling fit with the core rod. In some embodiments, the mandrel holder further comprises a guide roller adjustment mechanism by which at least one of the guide rollers is mounted on the support, the guide roller adjustment mechanism comprising: The vertical sliding grooves are symmetrically formed in the top of the support, and pin holes I are formed in two sides of the top of any one vertical sliding groove; The pair of roller shaft seats are respectively and slidably assembled in the two vertical sliding grooves, and two ends of the two roller shaft seats, which are far away from each other, are respectively provided with a pin hole II which is used for being aligned with the pin hole I; the two ends of the roll shaft of the guide roll are movably inserted with the two ends, close to each other, of the roll shaft seat r