Variable diameter single wheel pay-off carriage

Abstract

The utility model discloses a single wheel pay -off trolley of variable diameter, including the link plate, is equipped with the sliding slot in link plate upper end, and the two -way screw rod is rotatably connected in the sliding slot, and the one end fixedly connected with the adjusting knob of two -way screw rod, and the moving plate is screw -threaded connection on both sides of two -way screw rod, and two opposite circular platform clamping plates are arranged between the opposite side of two moving plates, and the movable plug -in of auxiliary rod is inserted in the moving plate upside, and the fixed connection of pressure wheel is established between two auxiliary rods, and the movable plug -in of support rod is inserted in the moving plate bottom side, and the both ends of support rod and auxiliary rod all are in contact with the pressure column, the utility model discloses can make two -way screw rod rotate through the rotation adjusting knob, and make moving plate relative movement, then again through the cooperation of pressure column and limit sleeve, can provide the interval of two circular platform clamping plates of accurate regulation, and cooperate pressure wheel, can accurately regulate the position of cable and the strength of clamping cable, and through the rolling friction instead of sliding friction, reduce the abrasion, and improve the accuracy of fixing and guiding simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of single-wheel line-feeding pulley technology, specifically to a single-wheel line-feeding pulley with variable diameter. Background Technology

[0002] A single-wheel cable laying pulley is a device used in power construction for supporting and moving cables and conductors. A single-wheel cable laying pulley typically includes components such as a scraper, wheel frame, steel wire guide, and support shaft, and uses small aluminum alloy pulleys to prevent the conductor from jumping out of the groove.

[0003] According to the Chinese patent publication CN221508940U, "A Variable Diameter Single-Wheel Line-Paying Trolley", the main description is that by adjusting the extension and retraction of the telescopic rod, the connecting rod frame is driven to deform. Since the pulley sleeve installed on the outside of the connecting rod frame is made of flexible material, the pulley sleeve deforms under the drive of the connecting rod frame, and finally the working diameter of the variable diameter pulley is adjusted, which increases the application range of the line-paying trolley.

[0004] Common variable-diameter single-wheel cable-feeding trolleys use movable side plates and spring force to clamp the side of the cable to prevent it from slipping out. While this can increase the pulley's adaptability to cable diameters, some sensitive cables may experience pressure wear on their surface due to the pressure from the side plates during rotation. Alternatively, as described in the referenced document "A Variable-Diameter Single-Wheel Cable-Feeding Trolley," multiple variable frames form an approximately circular structure to provide support and guidance for the cable. Although this improves the adjustment of the working diameter of the variable-diameter pulley, such rotation can cause cable vibration, resulting in a poorer cable guiding effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a single-wheel cable feeding trolley with a variable diameter, which reduces wear caused by pressure from the side plate on sensitive cables and mitigates the problem of poor cable guiding performance due to vibration.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows: a variable diameter single-wheel line-feeding trolley, including a connecting plate, a groove is provided at the upper end of the connecting plate, a bidirectional screw is rotatably connected in the groove, an adjustment knob is fixedly connected to one end of the bidirectional screw, movable plates are threadedly connected to both sides of the bidirectional screw, two opposing frustum plates are provided between the opposite sides of the two movable plates, an auxiliary rod is movably inserted into the upper side of the movable plate, a pressure wheel is fixedly connected between the two auxiliary rods, a support rod is movably inserted into the bottom side of the movable plate, both ends of the support rod and the auxiliary rod are in contact with the pressure column, a limit sleeve is fixedly connected to the opposite side of the two movable plates, a pressure column is threadedly connected in the limit sleeve, and a gear disk is fixedly connected to the side of the pressure column away from the movable plate.

[0007] As a preferred technical solution of this utility model, a connecting block is fixedly connected to the side of the limiting sleeve near the connecting plate, and a limiting rod is threadedly connected to the connecting block. The limiting rod is inserted into the tooth groove of the gear disk. By setting the connecting block and the limiting rod, the vibration generated by the single wheel wire feeding trolley during use causes the gear disk and pressure column to rotate and loosen.

[0008] As a preferred technical solution of this utility model, a reinforcing rib is fixedly connected to the upper side of the movable plate, a bracket is fixedly connected to the upper end of the reinforcing rib, and a connecting strip is fixedly connected to the upper end of the bracket. The connecting strip contacts the upper end of the connecting plate. By setting the reinforcing rib, the stability of the connecting plate and the movable plate after adjustment is increased.

[0009] As a preferred technical solution of this utility model, the connecting plate is provided with positioning holes evenly distributed at one end near the adjusting knob, and a positioning rod is inserted into the positioning hole. The positioning rod is threadedly connected to the adjusting knob. By setting the positioning hole and the positioning rod, the adjusting knob can be limited, thereby reducing the shaking of the bidirectional screw during the operation of the single-wheel wire feeding trolley, which would cause the bidirectional screw to rotate.

[0010] As a preferred technical solution of this utility model, a slider is in contact with one side of the movable plate, and the slider is rotatably embedded in one side of the frustum plate. By setting the slider, the friction between the frustum plate and the movable plate can be reduced, providing support and guidance for the cable.

[0011] This utility model has the following advantages:

[0012] (1) By rotating the adjustment knob, the bidirectional screw can be rotated and the moving plate can be moved relative to each other. Then, by the cooperation of the pressure column and the limit sleeve, the distance between the two frustum plates can be precisely adjusted. With the pressure roller, the position of the cable and the clamping force of the cable can be precisely adjusted. Rolling friction replaces sliding friction, reducing wear while improving the accuracy of fixing and guiding.

[0013] (2) By removing the limiting rod and rotating the adjusting plate until the gear plate is removed, and then removing the support rod, the diameter of the frustum plate can be replaced, which can further adapt to the cable diameter.

[0014] (3) By setting a limit rod and a positioning rod on one side of the adjustment knob and gear plate, the rotation of the bidirectional screw and pressure column caused by the shaking during the operation of the cable feeding trolley can be reduced, thereby improving the stability of the cable clamping. Attached Figure Description

[0015] Figure 1 This is a side cross-sectional view of a preferred embodiment of the present invention, showing a single-wheeled wire-feeding trolley with a variable diameter.

[0016] Figure 2This is a three-dimensional structural diagram of a variable-diameter single-wheel line-feeding trolley according to a preferred embodiment of the present invention.

[0017] Figure 3 This is a side sectional view of the frustum plate of a variable-diameter single-wheel line-feeding trolley according to a preferred embodiment of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Connecting plate; 2. Slide groove; 3. Bidirectional screw; 4. Adjusting knob; 5. Moving plate; 6. Frustum plate; 7. Pressure roller; 8. Support rod; 9. Limiting sleeve; 10. Pressure column; 11. Gear disk; 12. Connecting block; 13. Limiting rod; 14. Sliding ball; 15. Reinforcing rib; 16. Bracket; 17. Connecting strip; 18. Positioning rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Please refer to the following: Figure 1-3 The variable diameter single-wheel wire feeding trolley shown includes a connecting plate 1. A groove 2 is formed on the upper end of the connecting plate 1. The groove 2, in conjunction with a bidirectional screw 3, is used to adjust the positions of two movable plates 5. The bidirectional screw 3 is rotatably connected within the groove 2. An adjusting knob 4 is fixedly connected to one end of the bidirectional screw 3. Rotating the adjusting knob 4 causes the bidirectional screw 3 to rotate, thereby moving the two movable plates 5 closer together or further apart. Movable plates 5 are threaded onto both sides of the bidirectional screw 3. Two opposing frustum-shaped retaining plates 6 are positioned between opposite sides of the two movable plates 5. An auxiliary rod is movably inserted into the upper side of each movable plate 5. A pressure roller 7 is fixedly connected between the two auxiliary rods. The bottom of the movable plate 5... A support rod 8 is inserted into the side. Both ends of the support rod 8 and the auxiliary rod are in contact with the pressure column 10. The support rod 8 limits the two frustum clamping plates 6. Then, the cable is clamped between the two frustum clamping plates 6 by manual force. At this time, the cable is limited and will generate a reaction force, which will cause the slider 14 on one side of the frustum clamping plate 6 to contact the moving plate 5. The two moving plates 5 are fixedly connected to the opposite sides of each other by a limit sleeve 9. The limit sleeve 9 is internally threaded with a pressure column 10. The side of the pressure column 10 away from the moving plate 5 is fixedly connected to a gear disk 11. Rotating the gear disk 11 will drive the pressure column 10 to squeeze the two ends of the support rod 8, thereby facilitating the subsequent replacement of frustum clamping plates 6 with different diameters.

[0021] Among them, the limiting sleeve 9 is fixedly connected to the connecting block 12 near the connecting plate 1. The connecting block 12 is threaded with a limiting rod 13. The limiting rod 13 is inserted into the tooth groove of the gear disk 11. By inserting the limiting rod 13 into the tooth groove of the gear disk 11, the problem of the pressure column 10 rotating and loosening caused by the shaking generated during the movement of the cable is reduced.

[0022] Among them, a reinforcing rib 15 is fixedly connected to the upper side of the movable plate 5, a bracket 16 is fixedly connected to the upper end of the reinforcing rib 15, and a connecting strip 17 is fixedly connected to the upper end of the bracket 16. The connecting strip 17 contacts the upper end of the connecting plate 1. By setting the reinforcing rib 15, the contact surface is increased and the stability of the connection between the movable plate 5 and the connecting plate 1 is improved.

[0023] The connecting plate 1 has evenly spaced positioning holes near the adjusting knob 4. A positioning rod 18 is inserted into the positioning hole. The positioning rod 18 is threaded to the adjusting knob 4. Rotating the positioning rod 18 into a single positioning hole can limit the rotation of the bidirectional screw 3.

[0024] Among them, a slider 14 is in contact with one side of the movable plate 5. The slider 14 rotates and is embedded in one side of the frustum plate 6. By setting the slider 14, the friction between the frustum plate 6 and the movable plate 5 is reduced.

[0025] When it is necessary to disassemble and replace the frustum plate 6 of different diameters, it is necessary to first disassemble the pressure column 10 and the limiting rod 13 connected to the support rod 8 or auxiliary rod, and then replace them.

[0026] Working principle: When dealing with cables of different diameters, the adjustment knob 4 can be rotated, which drives the bidirectional screw 3 to rotate, causing the two moving plates 5 to move relative to each other and move away. Then, the pressure column 10 feeds and squeezes the support rod 8 or auxiliary rod, thereby limiting the frustum plate 6 and the pressure roller 7 between the two moving plates 5. Furthermore, the positioning rod 18 and the limiting rod 13 can limit the adjustment knob 4 and the gear disk 11. With the help of the reinforcing rib 15 and the connecting strip 17, the stability of the pressure roller 7 in contact with the frustum plate 6 is increased.

[0027] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0028] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended 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 can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions 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 variable-diameter single-wheel line-feeding trolley, comprising a connecting plate (1), characterized in that, The upper end of the connecting plate (1) is provided with a sliding groove (2), and a bidirectional screw (3) is rotatably connected in the sliding groove (2). One end of the bidirectional screw (3) is fixedly connected with an adjustment knob (4). Both sides of the bidirectional screw (3) are threadedly connected with moving plates (5). Two opposing frustum plates (6) are provided between the two moving plates (5). An auxiliary rod is movably inserted into the upper side of the moving plate (5). A pressure roller (7) is fixedly connected between the two auxiliary rods. A support rod (8) is movably inserted into the bottom side of the moving plate (5). Both ends of the support rod (8) and the auxiliary rod are in contact with the pressure column (10). A limit sleeve (9) is fixedly connected to the side of the two moving plates (5) that is far apart. A pressure column (10) is threadedly connected in the limit sleeve (9). A gear disk (11) is fixedly connected to the side of the pressure column (10) that is far away from the moving plate (5).

2. The variable diameter single-wheel line-feeding pulley as described in claim 1, characterized in that, The limiting sleeve (9) is fixedly connected to a connecting block (12) on the side near the connecting plate (1). A limiting rod (13) is threaded onto the connecting block (12), and the limiting rod (13) is inserted into the tooth groove of the gear disk (11).

3. The variable diameter single-wheel line-feeding pulley as described in claim 1, characterized in that, A reinforcing rib (15) is fixedly connected to the upper side of the movable plate (5), and a bracket (16) is fixedly connected to the upper end of the reinforcing rib (15). A connecting strip (17) is fixedly connected to the upper end of the bracket (16), and the connecting strip (17) is in contact with the upper end of the connecting plate (1).

4. The variable diameter single-wheel line-feeding pulley as described in claim 3, characterized in that, The connecting plate (1) has evenly spaced positioning holes at one end near the adjusting knob (4), and a positioning rod (18) is inserted into the positioning hole. The positioning rod (18) is threadedly connected to the adjusting knob (4).

5. A variable diameter single-wheel line-feeding pulley as described in claim 3, characterized in that, The movable plate (5) has a slider (14) in contact with one side, and the slider (14) rotates and is embedded in one side of the frustum plate (6).

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