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CN-224226374-U - Pay-off is used in engineering survey and drawing

CN224226374UCN 224226374 UCN224226374 UCN 224226374UCN-224226374-U

Abstract

The application provides a paying-off device for engineering survey and drawing, which comprises a mounting frame, a winding mechanism and an adjusting mechanism, wherein the winding mechanism comprises a winding roller, is rotationally connected to the mounting frame and is used for winding a measuring wire, the adjusting mechanism comprises an adjusting roller, is rotationally connected to the mounting frame and is internally provided with a cavity, a through groove and a round hole which are communicated with the cavity are formed in the cylindrical surface of the adjusting roller, the through groove extends along the circumferential direction of the adjusting roller by a preset angle, the round hole is positioned at one side in the axial direction of the through groove, the through groove and the round hole are arranged to enable the measuring wire on the winding roller to penetrate into the cavity through the through groove and then penetrate out of the round hole through the cavity, and the adjusting mechanism further comprises a driving assembly which is arranged on the mounting frame and is arranged to drive the adjusting roller to rotate and lock the rotating position of the adjusting roller. The device can reduce the acting force on the measuring wire between the regulating roller and the winding roller and avoid the breakage of the measuring wire at the same time of tightening the released measuring wire through the regulating roller and the through grooves and the round holes which are arranged in a staggered manner on the regulating roller.

Inventors

  • DING YONGQING
  • WANG GUOJIN
  • Ren Chunpeng
  • MI QIAN
  • Zhao Wenchi

Assignees

  • 中建材山东勘测设计研究院有限公司

Dates

Publication Date
20260512
Application Date
20250512

Claims (10)

  1. 1. The paying-off device for engineering survey and drawing is characterized by comprising a mounting frame (100), a winding mechanism (200) and an adjusting mechanism (300); The winding mechanism (200) comprises a winding roller (210) which is rotatably connected to the mounting frame (100) and is used for winding a measuring wire; the adjusting mechanism (300) comprises an adjusting roller (310), the adjusting roller is rotatably connected to the mounting frame (100) and is internally provided with a cavity, a through groove (311) and a round hole (312) which are communicated with the cavity are formed in the cylindrical surface of the adjusting roller (310), the through groove (311) extends along the circumferential direction of the adjusting roller (310) for a preset angle, and the round hole (312) is positioned at one axial side of the through groove (311); The through groove (311) and the round hole (312) are arranged to enable the measuring line on the winding roller (210) to penetrate into the cavity through the through groove (311) and then penetrate out of the round hole (312) through the cavity; The adjusting mechanism (300) further comprises a driving assembly (320) arranged on the mounting frame (100) and configured to drive the adjusting roller (310) to rotate and lock the rotating position of the adjusting roller (310).
  2. 2. The pay-off device for engineering survey and drawing according to claim 1, wherein the through groove (311) is a linear groove extending along the circumferential direction of the regulating roller (310), and the corresponding central angle is 180-270 degrees.
  3. 3. An engineering survey and drawing paying-off device according to claim 2, wherein the round hole (312), the rotation axis of the regulating roller (310) and one end of the through groove (311) are located in the same plane, and the end of the through groove (311) is located at both sides of the rotation axis of the regulating roller (310) in a dislocation correspondence with the round hole (312).
  4. 4. An apparatus as claimed in claim 1, wherein the driving unit (320) comprises a gear (321) fixed on the rotation shaft of the adjusting roller (310) and a rack (322) slidably connected to the mounting frame (100), and the rack (322) is engaged with the gear (321).
  5. 5. The pay-off device for engineering survey and drawing according to claim 4, wherein the mounting frame (100) is rotatably connected with a screw rod (323), the axial direction of the screw rod (323) is parallel to the sliding direction of the rack (322), a moving block (324) is fixed on the rack (322), and the moving block (324) is in threaded fit with the screw rod (323).
  6. 6. The pay-off device for engineering survey and drawing according to claim 1, wherein the mounting frame (100) is rotatably connected with a limiting roller (340), the limiting roller (340) is located on the radial outer side of the adjusting roller (310) and is parallel to the adjusting roller (310), and the middle part of the limiting roller (340) corresponds to the round hole (312) in the radial direction of the adjusting roller (310) and is arranged to be abutted with a measuring line penetrating through the round hole (312).
  7. 7. An engineering survey and drawing paying-off device according to any one of claims 1-6, characterized in that a plurality of beads (313) are uniformly embedded on the inner side surface of the through groove (311) and the inner side surface of the round hole (312), and the beads (313) can rotate.
  8. 8. The pay-off device for engineering survey and drawing according to claim 1, wherein the mounting frame (100) is provided with a fixed block (223) corresponding to the rotating shaft of the winding roller (210), the fixed block (223) is connected with a threaded rod (221) in a threaded manner, the threaded rod (221) extends along the radial direction of the winding roller (210), one end, close to the rotating shaft of the winding roller (210), is provided with a friction block (222), and the friction block (222) can be abutted with the rotating shaft of the winding roller (210).
  9. 9. The pay-off device for engineering survey and drawing according to claim 8, wherein the friction block (222) is arc-shaped and is coaxial with the winding roller (210), the friction block (222) is rotatably connected to one end of the threaded rod (221), a sliding block extends from one axial side of the threaded rod, a sliding groove in sliding fit with the sliding block is arranged on the mounting frame (100), and the sliding groove extends along the radial direction of the winding roller (210).
  10. 10. An engineering survey and mapping pay-off device according to claim 1, characterized in that a hand wheel (230) is arranged at one end of the rotating shaft of the winding roller (210).

Description

Pay-off is used in engineering survey and drawing Technical Field The utility model relates to the technical field of engineering survey and mapping, in particular to a paying-off device for engineering survey and mapping. Background Engineering survey, including various survey operations performed during engineering construction survey, design, construction and management, is a series of engineering procedures that directly serve the survey, design, construction, installation, etc. of various construction projects. In engineering construction, various measurement works are usually required to be carried out by using a paying-off device, the traditional paying-off device is used for stopping the rotation of a wire winding roller and tightening a measurement wire manually, continuous action is required in the measurement process, the measurement is easy to fatigue, and other personnel are required to cooperate to complete the measurement work. The prior patent CN220165512U discloses a pay-off for engineering survey and drawing, and it sets up the locking gear through setting up on the line hub, slides on the extension board and sets up the locking pinion rack to utilize fixed spring to make locking pinion rack and locking gear meshing compress tightly, realize locking, stop line hub free rotation, alleviate artifical burden and the fatigue that lasts the locking action, and only need alone to operate and can accomplish measurement work. In addition, through the pay-off adjusting mechanism, the position of the sliding roller is adjusted by rotating the adjusting button, so that the sliding roller compresses the measuring wire, and the measuring wire is always kept in a tight state. However, in the above patent, the sliding roller moves downwards, and although the measuring wire can be pressed, the measuring wire between the sliding roller and the wire hub is also subjected to an acting force in the pressing process, and when the force is poorly controlled, the measuring wire is easily broken, and the wire needs to be re-led, which is very troublesome and inconvenient. Disclosure of utility model In order to solve the technical problems in the background technology, the utility model provides a paying-off device for engineering survey and drawing. The technical scheme of the utility model is as follows: A pay-off device for engineering survey and drawing comprises a mounting frame, a winding mechanism and an adjusting mechanism; The winding mechanism comprises a winding roller, is rotationally connected to the mounting frame and is used for winding the measuring wire; The adjusting mechanism comprises an adjusting roller which is rotationally connected to the mounting frame and is internally provided with a cavity, a through groove and a round hole which are communicated with the cavity are formed in the cylindrical surface of the adjusting roller, the through groove extends along the circumferential direction of the adjusting roller by a preset angle, and the round hole is positioned at one side of the axial direction of the through groove; the through groove and the round hole are arranged so that a measuring line on the winding roller can penetrate into the cavity through the through groove and then penetrate out of the round hole through the cavity; the adjusting mechanism further comprises a driving assembly which is arranged on the mounting frame and is arranged to drive the adjusting roller to rotate and lock the rotating position of the adjusting roller. After paying off is completed, the measuring wire paid off is wound and tensioned under the action of the round hole by rotating the regulating roller, so that the tightening operation of the measuring wire is facilitated. When the regulating roller rotates, the measuring wire between the regulating roller and the winding roller slides in the through groove, so that the tension force of the round hole on the measuring wire is reduced, and the breakage of the measuring wire caused by the excessive acting force is avoided. Preferably, the through groove is a linear groove extending along the circumferential direction of the regulating roller, and the corresponding central angle is 180-270 degrees. Preferably, the round hole, the rotation axis of the adjusting roller and one end of the through groove are positioned in the same plane, and the end of the through groove is staggered with the round hole to correspond to the round hole and are respectively positioned at two sides of the rotation axis of the adjusting roller. In some embodiments, the drive assembly includes a gear fixed to the shaft of the dancer roll and a rack slidably coupled to the mount, the rack engaging the gear. Further, the screw rod is rotationally connected to the mounting frame, the axial direction of the screw rod is parallel to the sliding direction of the rack, the moving block is fixed on the rack, and the moving block is in threaded fit with the screw rod. In some embodiments,