Novel track reversing device

Abstract

The utility model relates to the technical field of tower anti-falling safety devices, and provides a novel track reversing device which comprises a reversing seat and a rotating core. The reversing seat is provided with a central groove and two groups of rail supporting grooves distributed on the periphery of the central groove; each group of track supporting grooves are positioned on the same straight line; a first rail is installed in one set of rail supporting grooves, and a second rail is installed in the other set of rail supporting grooves. The first track and the second track are disconnected in the middle; a rail connecting section is arranged on the rotating core and is used for connecting the middle disconnected position of the first rail and the middle disconnected position of the second rail; the rotating core is rotatably mounted in the central groove through a threaded pin shaft and a locking nut; the threaded pin shaft is sleeved with a pin shaft copper sleeve. A copper wear-resistant base plate is mounted in the reversing seat; the copper wear-resisting base plate is located between the reversing base and the rotating core. Friction between the rotating core and the reversing seat and friction between the rotating core and the threaded pin shaft can be reduced, the stability of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of safety devices for preventing tower falls, and in particular to a novel track reversing device. Background Technology

[0002] Fall arrestor rails are required when workers are performing maintenance on power poles. These rails are typically installed on the crossarms and D-legs or B-legs of the pole, allowing workers to use self-locking devices for up, down, left, and right movements. Self-locking devices on the fall arrestor rails protect workers from accidental falls while working at heights. Workers connect their safety ropes to the self-locking devices and slide along the rails using them. If a worker falls, the self-locking device will lock, preventing further fall. Normally, the self-locking device can only move in one direction, either vertically or horizontally. If it's necessary to switch from vertical to horizontal work, a reversing device is required.

[0003] Currently, track reversing devices are installed on the track using single or double holes, resulting in reduced installation strength. The rotating core of the reversing device directly contacts the reversing device seat, and prolonged rotational friction easily leads to accelerated wear on both the core and the seat, severely affecting the core's strength. Simultaneously, the core's shaft also directly engages with the reversing device seat; prolonged rotation further exacerbates shaft wear, thus reducing its mechanical strength. Even more seriously, the core is fixed to the reversing device seat with bolts, lacking an axial positioning structure; meaning the tightness of the rotation is adjusted solely by human feel. If the installation is too tight, it's difficult for workers to rotate and connect the track; if the installation is too loose, the stability of the track connection after turning is poor, and it cannot properly connect with vertical and horizontal tracks. Utility Model Content

[0004] This invention mainly addresses the technical problems of current reversing devices where the rotating core is directly connected to the reversing device seat, which easily leads to increased wear on the rotating core and the reversing device seat, and the lack of axial positioning of the rotating core. It proposes a new type of track reversing device that can reduce friction between the rotating core and the reversing seat, and between the rotating core and the threaded pin, thereby increasing the stability of the device and extending its service life.

[0005] This utility model provides a novel track reversing device, comprising: a reversing seat and a rotating core;

[0006] The reversing seat has a central slot and two sets of track support slots distributed around the outer periphery of the central slot; each set of track support slots is located on the same straight line;

[0007] A first track is installed in one set of track support slots, and a second track is installed in another set of track support slots; both the first and second tracks are disconnected in the middle.

[0008] The rotating core is provided with a track connecting section, which is used to connect the middle break position of the first track and the second track.

[0009] The rotating core is rotatably mounted in the central groove via a threaded pin and a locking nut; a copper pin sleeve is fitted onto the threaded pin.

[0010] A copper wear-resistant pad is installed inside the reversing seat; the copper wear-resistant pad is located between the reversing seat and the rotor.

[0011] Preferably, the first track and the second track are fixed in their respective track support grooves by track clamps and multiple fastening bolts.

[0012] Preferably, a washer is provided on the threaded pin.

[0013] Preferably, locking nut mounting grooves are provided on both sides of the rotating core;

[0014] The top end of the pin bushing protrudes from the locking nut mounting slot.

[0015] Preferably, arc-shaped grooves are provided on both sides of the rotating core, and the angle of the arc-shaped grooves is 90°.

[0016] Preferably, the reversing seat has a limiting protrusion on its central groove.

[0017] Preferably, the reversing seat is provided with a baffle.

[0018] Preferably, the two sets of track support grooves are arranged vertically.

[0019] Preferably, the cross-section of the track support groove is U-shaped.

[0020] This utility model provides a novel track reversing device that allows workers to not only use the self-locking device for vertical up and down operations, but also to move the self-locking device in other directions by rotating the core when a change of direction is needed, ensuring the safety of tower workers and the convenience of maintenance. The core is installed in the central groove of the reversing seat via a threaded pin (shaft), which reduces the friction of the threaded pin. A wear-resistant copper sleeve is fitted onto the cylindrical surface of the threaded pin to further reduce friction between the core and the threaded pin, increasing the service life of the threaded pin. The copper wear-resistant pad further reduces friction between the core and the reversing seat, increasing the core's service life. To ensure axial positioning of the core for optimal rotation, the top of the pin's copper sleeve protrudes from the locking nut mounting groove, maintaining a certain distance between the locking nut and the groove to prevent over-tightening and ensure the core can rotate smoothly, thus reducing friction. The first and second tracks are respectively fixed in their corresponding track support grooves by track clamps and multiple fastening bolts. These bolts increase the connection rigidity between the tracks and the track support grooves, enhancing the strength and reliability of the reversing device. This invention features a limiting protrusion and a baffle on the reversing seat, allowing the reversing device to rotate only 90°, preventing the self-locking device from slipping out and causing danger due to excessive rotation by the operator. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the novel track reversing device provided by this utility model;

[0022] Figure 2 This is a disassembly diagram of the novel track reversing device provided by this utility model;

[0023] Figure 3 This is a top view of the novel track reversing device provided by this utility model;

[0024] Figure 4 This is a bottom view of the novel track reversing device provided by this utility model;

[0025] Figure 5 This is a side view of the novel track reversing device provided by this utility model;

[0026] Figure 6 yes Figure 5 Sectional view of line AA in the middle;

[0027] Figure 7 This is a schematic diagram of the reversing seat provided by this utility model;

[0028] Figure 8 This is a top view of the reversing seat provided by this utility model;

[0029] Figure 9This demonstrates the application effect of the novel track reversing device provided by this utility model. Figure 1 ;

[0030] Figure 10 This demonstrates the application effect of the novel track reversing device provided by this utility model. Figure 2 .

[0031] Reference numerals in the attached diagram: 1. First track; 2. Second track; 3. Reversing seat; 4. Fastening bolt; 5. Track clamp; 6. Locking nut; 7. Rotary core; 8. Copper wear-resistant pad; 9. Pin shaft copper sleeve; 10. Threaded pin shaft; 11. Thin-cap hex bolt; 12. Washer; 13. Limiting protrusion; 14. Self-locking device; 301. Center groove; 302. Track support groove; 701. Arc groove. Detailed Implementation

[0032] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0033] like Figure 1-6 As shown in the figure, a novel track reversing device provided by this utility model includes: a reversing seat 3 and a rotating core 7.

[0034] like Figure 7-8 As shown, the reversing seat 3 has a central groove 301 and two sets of track support grooves 302 distributed around the outer periphery of the central groove 301; each set of track support grooves 302 is located on the same straight line. The angle of the two sets of track support grooves 302 can be set according to the actual situation of the fall-prevention track, and usually the two sets of track support grooves 302 are set perpendicularly. The track support grooves 302 extend outward from the central groove 301 by a certain distance, and the cross-section of the track support grooves 302 is U-shaped, which can stably support the track and improve the stability of the reversing device.

[0035] A copper wear-resistant pad 8 is installed inside the reversing seat 3 via a thin-cap hex bolt 11; the copper wear-resistant pad 8 is located between the reversing seat 3 and the rotating core 7. The copper wear-resistant pad 8 can reduce the coefficient of friction between the rotating core 7 and the reversing seat 3, reduce friction between the rotating core 7 and the reversing seat 3, and improve the service life of the rotating core 7.

[0036] A first track 1 is installed in one set of track support grooves 302, and a second track 2 is installed in another set of track support grooves 302; both the first track 1 and the second track 2 are disconnected in the middle. The first track 1 and the second track 2 can be made of T6 aluminum alloy or T8 aluminum alloy, which has good rigidity and stability. Specifically, the first track 1 and the second track 2 are respectively fixed to the corresponding track support grooves 302 by track clamps 5 and multiple fastening bolts 4. The multiple fastening bolts 4 can improve the connection rigidity between the track and the track support groove 302, increasing the strength and reliability of the reversing device.

[0037] The rotating core 7 is provided with a track connecting section 702, which is used to connect the intermediate disconnection position of the first track 1 and the second track 2.

[0038] The rotating core 7 is rotatably mounted in the central groove 301 via a threaded pin 10 and a locking nut 6; a washer 12 is provided on the threaded pin 10. A copper sleeve 9 is fitted onto the threaded pin 10; the copper sleeve 9 can reduce the coefficient of friction between the rotating core 7 and the threaded pin 10, thereby reducing friction and improving the service life of the threaded pin 10. In this invention, the threaded pin 10 serves both as a bolt to fasten the rotating core and as a rotating shaft. The rotating core of this invention is mounted in the central groove 301 of the steering gear seat 3 via the rotating shaft (threaded pin 10), which can reduce the friction of the rotating shaft.

[0039] Furthermore, locking nut mounting grooves are provided on both sides of the rotating core 7. To achieve axial positioning of the rotating core 7 so that it can rotate effectively, the top end of the pin bushing 9 protrudes from the locking nut mounting groove. Specifically, the top end of the pin bushing 9 protrudes 0.5mm above the locking nut mounting groove, so that the bottom surface of the locking nut 6 always maintains a distance of 0.5mm from the locking nut mounting groove. The purpose is to axially position the rotating core 7, preventing the locking nut 6 from being tightened too much, thus preventing the rotating core 7 from becoming unable to rotate, and also reducing friction on the rotating core 7.

[0040] Furthermore, arc-shaped grooves 701 are respectively provided on both sides of the rotating core 7, and the angle of the arc-shaped grooves 701 is 90°. A limiting protrusion 13 is provided on the central groove 301 of the reversing seat 3. The diameter of the arc-shaped groove 701 is smaller than the overall diameter of the rotating core 7, so the rotating core 7 forms a shielding against the limiting protrusion 13 at both ends of the arc-shaped groove 701; under the restriction of the limiting protrusion 13, the rotating core 7 can rotate 90° clockwise and counterclockwise, so that the rotating core 7 can be aligned with the track. In addition, baffles are provided around the reversing seat 3 to prevent the self-locking device 14 from slipping out and causing danger due to excessive rotation of the rotating core 7 by the operator.

[0041] like Figure 9-10As shown, this utility model discloses a novel track reversing device. During operation, the worker connects a safety rope around their waist to the self-locking device 14. The track connecting section 702 of the rotating core 7 connects to the first track 1, allowing the worker to work upwards via the first track 1. When maintenance is required on both sides, the self-locking device 14 moves to the rotating core 7, and the worker rotates the rotating core 7 to change direction, connecting the track connecting section 702 to the second track 2. The self-locking device 14 then moves onto the second track 2, allowing the worker to perform maintenance on both sides via the second track 2. After completing the maintenance on both sides, the worker returns to the rotating core 7, rotates it again to return to the first track 1, and continues working upwards. This utility model includes a limiting protrusion 13 and a baffle on the reversing seat 3, ensuring that the reversing device can only rotate 90°, preventing the self-locking device 14 from slipping out due to excessive rotation of the reversing device, which could cause a hazard.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel track reversing device, characterized in that, include: Reversing seat (3) and rotating core (7); The reversing seat (3) has a central groove (301) and two sets of track support grooves (302) distributed on the outer periphery of the central groove (301); each set of track support grooves (302) is located on the same straight line; A first track (1) is installed in one set of track support grooves (302), and a second track (2) is installed in another set of track support grooves (302); the first track (1) and the second track (2) are both disconnected in the middle; The rotating core (7) is provided with a track connecting section (702), which is used to connect the middle break position of the first track (1) and the second track (2); The rotating core (7) is rotatably mounted in the central groove (301) via a threaded pin (10) and a locking nut (6); a pin copper sleeve (9) is fitted on the threaded pin (10); A copper wear-resistant pad (8) is installed inside the reversing seat (3); the copper wear-resistant pad (8) is located between the reversing seat (3) and the rotating core (7).

2. The novel track reversing device according to claim 1, characterized in that, The first track (1) and the second track (2) are respectively fixed in the corresponding track support groove (302) by track clamps (5) and multiple fastening bolts (4).

3. The novel track reversing device according to claim 1, characterized in that, A washer (12) is provided on the threaded pin (10).

4. The novel track reversing device according to claim 1, characterized in that, The rotating core (7) has locking nut mounting grooves on both sides; The top end of the pin bushing (9) protrudes from the locking nut mounting groove.

5. The novel track reversing device according to claim 1, characterized in that, The rotating core (7) has arc-shaped grooves (701) on both sides, and the angle of the arc-shaped grooves (701) is 90°.

6. The novel track reversing device according to claim 5, characterized in that, The reversing seat (3) is provided with a limiting protrusion (13) on the center groove (301).

7. The novel track reversing device according to claim 6, characterized in that, The reversing seat (3) is provided with a baffle.

8. The novel track reversing device according to claim 1, characterized in that, Two sets of track support grooves (302) are set vertically.

9. The novel track reversing device according to claim 8, characterized in that, The track support groove (302) has a U-shaped cross section.

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