A wire paying-off trolley with brake function

Abstract

The utility model discloses a pay -off pulley with brake function, including support frame, the pulley is rotatively connected with the support frame bottom side, the both sides of support frame all are established the slide slot, one of the slide slot is rotatively connected with the adjusting lever, is connected with the sliding block on the adjusting lever screw thread, and the sliding block is provided with two, and the auxiliary rod is inserted to another sliding block, and the auxiliary rod fixedly connected in another slide groove, and the opposite side fixedly connected with the rotating lever of two sliding blocks, the rotating lever center place fixedly connected with the pressure wheel, and the rotating lever is located pressure wheel both sides and is fixedly connected with the gear, and the electric push rod is fixedly connected on the support frame, the utility model discloses through setting up the gear cooperation electric push rod drive pressure frame's up and down movement on the rotating lever both sides, then cooperate pressure wheel and pulley provide for the location of cable, when gear and card strip occur relative obstruction, can utilize other card strip limit tooth groove, thereby promote the adaptability of location structure, and when electric push rod retraction can reverse regulation cable.

Description

Technical Field

[0001] This utility model relates to the field of line-laying pulley technology, specifically to a line-laying pulley with a braking function. Background Technology

[0002] A wire laying pulley is a device used to support and guide conductors, ground wires, or optical cables during the construction of power transmission lines. It is usually divided into conductor laying pulleys, ground wire laying pulleys, and optical cable laying pulleys. It can ensure smooth movement during the stringing process and reduce friction and wear.

[0003] According to Chinese Patent Publication No. CN220510628U, "A Line-Paying Trolley with Braking Function," the main method involves winding the line material around the surface of a line-paying roller. During line pay-off, the roller rotates. When it's necessary to stop pay-off, rotating the adjustment knob causes the opposing threaded rod to rotate. This moves the sliding blocks mounted on both sides of the sliding blocks towards the line-paying roller via guide rods. The movement of the sliding blocks causes the connecting column, mounting plate, and friction plate connected to their bottom to move synchronously towards the line-paying roller. The friction plate contacts the brake disc, generating significant friction, which stops the rotating line-paying roller. This avoids the safety hazards caused by manually stopping the line pay-off, which can easily lead to the line falling. The method is simple to operate and improves construction efficiency.

[0004] Common wire-laying pulleys use ratchet and pawl to provide a reverse locking mechanism, or, as described in the referenced document "A wire-laying pulley with braking function," a screw mechanism drives a clamping plate to hold the rotating wheel, thereby providing a limiting effect. However, some wire-laying pulleys are suspended on power transmission lines, requiring personnel to climb and adjust them, which is quite troublesome. Furthermore, when the wire length is too long, the cable needs to be adjusted in reverse, affecting the adjustment efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cable-laying pulley with a braking function, thereby improving the adjustment efficiency of the cable-laying pulley suspended at a high position during actual use and reducing the inconvenience of reverse cable adjustment.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows: a line-feeding trolley with a braking function includes a support frame, a pulley rotatably connected to the bottom side of the support frame, and grooves on both sides of the support frame. An adjusting rod is rotatably connected in one of the grooves, and a slider is threaded onto the adjusting rod. Two sliders are provided, and an auxiliary rod is inserted into the other slider. The auxiliary rod is fixedly connected to the other groove. A rotating rod is fixedly connected to one side of the two sliders opposite to each other. A pressure wheel is fixedly connected to the center of the rotating rod. Gears are fixedly connected to both sides of the rotating rod on the pressure wheel. An electric push rod is fixedly connected to the support frame. A pressure frame is fixedly connected to the output end of the electric push rod. First through holes are evenly opened on both sides of the pressure frame. A telescopic rod is fixedly connected to the first through hole. A locking strip is fixedly connected to the end of the telescopic rod away from the first through hole, and the locking strip corresponds to the gear.

[0007] As a preferred technical solution of this utility model, the bottom end of the pressure frame is provided with an arc-shaped surface, and the pressure frame is provided with a receiving groove evenly on one side of the arc-shaped surface. The receiving groove contacts the card strip. By providing the receiving groove, the card strip can retract into the receiving groove when it is relatively blocked by the gear, thereby improving the adaptability of the limit.

[0008] As a preferred technical solution of this utility model, the pressure frame is slidably connected to the limiting plate in the first through hole. The limiting plate is in contact with a first spring on one side. One end of the first spring is in contact with one end of the first through hole. The first spring is sleeved on the telescopic rod. By setting the first spring in conjunction with the limiting plate, it is easy to provide thrust, so that the side of the clip contacts the side of a single tooth.

[0009] As a preferred technical solution of this utility model, the two sides of the pressure frame away from the pressure roller are rotatably embedded with support balls. The support balls are in contact with the inner wall of the support frame. By setting the support balls, the stability of the pressure frame movement is improved and the friction between the pressure frame and the inner wall of the support frame is reduced when the pressure frame moves.

[0010] As a preferred technical solution of this utility model, a plug rod is fixedly connected to the end of the pressure frame away from the pulley. The plug rod is movably inserted into the support frame. By setting the plug rod, the lateral displacement of the pressure frame during the pressing process is reduced, and the wear of the output end of the electric push rod by the lateral force is reduced.

[0011] This utility model has the following advantages: by setting gears on both sides of the rotating rod to drive the pressure frame to move up and down, and then cooperating with the pressure roller and pulley to provide a limit for the cable, when the gear and the locking strip are relatively blocked, other locking strips can be used to limit the tooth groove, thereby improving the adaptability of the limiting structure, and the cable can be adjusted in the opposite direction when the electric push rod retracts. Attached Figure Description

[0012] Fig. 1 This is a three-dimensional sectional view of a wire-releasing trolley with a braking function according to a preferred embodiment of the present invention.

[0013] Fig. 2 This is a side view of the support frame structure of a wire-laying trolley with braking function according to a preferred embodiment of the present invention.

[0014] Fig. 3 This is a front sectional view of the pressure frame of a wire-laying trolley with a braking function, according to a preferred embodiment of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Pulley; 3. Slide groove; 4. Adjusting rod; 5. Sliding block; 6. Auxiliary rod; 7. Rotating rod; 8. Pressure roller; 9. Gear; 10. Electric push rod; 11. Pressure frame; 12. First through hole; 13. Telescopic rod; 14. Locking strip; 15. Receiving groove; 16. Limiting plate; 17. First spring; 18. Support ball; 19. Insert rod. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Please refer to the following: Figs. 1-3 The cable-feeding trolley with a braking function shown includes a support frame 1. A pulley 2 is rotatably connected to the bottom side of the support frame 1. Slide grooves 3 are provided on both sides of the support frame 1. An adjusting rod 4 is rotatably connected to one of the slide grooves 3. Rotating the adjusting rod 4 causes two sliders 5 to move up and down within the slide groove 3, thereby facilitating the adjustment of the distance between the pressure roller 8 and the pulley 2 to accommodate cables of different diameters. Slides 5 are threaded onto the adjusting rod 4. Two sliders 5 are provided. An auxiliary rod 6 is inserted into the other slider 5. The auxiliary rod 6 is fixedly connected to the other slide groove 3. A rotating rod 7 is fixedly connected to one side of the two sliders 5 facing each other. A pressure roller 8 is fixedly connected to the center of the rotating rod 7. Gears 9 are fixedly connected to both sides of the pressure roller 8. An electric push rod 10 is fixedly connected to the support frame 1. A Bluetooth connection module is set at the fixed end of the electric push rod 10 (at the position marked with ten on the support frame 1). The output end of the electric push rod 10 is fixedly connected to the pressure frame 11. When the electric push rod 10 extends, the pressure frame 11 is pressed down and contacts the upper side of the gear 9. The gear 9 is inserted into the tooth groove by the locking strip 14, which can make the gear 9 and the pressure roller 8 stable and stationary. The pressure frame 11 has first through holes 12 evenly opened on both sides. A telescopic rod 13 is fixedly connected in the first through hole 12. The end of the telescopic rod 13 away from the first through hole 12 is fixedly connected to the locking strip 14, which corresponds to the gear 9.

[0018] The bottom end of the pressure frame 11 has an arc-shaped surface. The pressure frame 11 has a uniformly distributed receiving groove 15 on one side of the arc-shaped surface. The receiving groove 15 contacts the locking strip 14. By setting the receiving groove 15, when a single locking strip 14 is locked with the tooth of the gear 9, other locking strips 14 can contact the side wall of other teeth on the gear 9 to provide a limit.

[0019] The pressure frame 11 is slidably connected to the limiting plate 16 inside the first through hole 12. The limiting plate 16 has a first spring 17 in contact with one side. One end of the first spring 17 is in contact with one end inside the first through hole 12. The first spring 17 is sleeved on the telescopic rod 13. By setting the first spring 17 and the limiting plate 16, the telescopic rod 13 can be stably extended.

[0020] Among them, the pressure frame 11 has support balls 18 embedded on both sides away from the pressure roller 8. The support balls 18 are in contact with the inner wall of the support frame 1. By setting the support balls 18, the friction of the pressure frame 11 when it moves up and down in the support frame 1 can be reduced.

[0021] Among them, the end of the pressure frame 11 away from the pulley 2 is fixedly connected to the insertion rod 19. The insertion rod 19 is movably inserted into the support frame 1. By setting the insertion rod 19, support can be provided on all four sides of the electric push rod 10, reducing the pressure generated at the output end of the electric push rod 10 due to the rotation of the pulley 2 and the pressure roller 8, and reducing equipment wear.

[0022] The Bluetooth connection module works in conjunction with a mobile app. The specific execution logic is that when the Bluetooth module receives a command from the mobile app, it transmits the signal to the microcontroller of the electric actuator 10 via serial communication. The controller then parses the command and drives the motor to rotate, thus realizing the action of the electric actuator 10.

[0023] Working principle: Rotate the adjusting rod 4 according to the cable diameter and move the slider 5 down. Then, the bottom side of the pressure roller 8 contacts the upper side of the pulley 2. When it is necessary to limit the rotation of the pulley 2 and the pressure roller 8, the electric push rod 10 is activated to extend and press down the pressure frame 11 and the pressure roller 8. The locking strip 14 engages with the tooth groove of the gear 9, thereby providing braking by increasing friction. At the same time, when the pulley 2 and the pressure roller 8 need to rotate or turn back, the electric push rod 10 retracts, and the pressure frame 11 and the locking strip 14 no longer limit the gear 9, thus facilitating the movement of the cable.

[0024] 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.

[0025] 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.

[0026] 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 wire-releasing trolley with a braking function, comprising a support frame (1), wherein a pulley (2) is rotatably connected to the bottom side of the support frame (1), characterized in that, The support frame (1) has sliding grooves (3) on both sides. An adjusting rod (4) is rotatably connected in one of the sliding grooves (3). A slider (5) is threaded onto the adjusting rod (4). There are two sliders (5). An auxiliary rod (6) is inserted into the other slider (5). The auxiliary rod (6) is fixedly connected in the other sliding groove (3). A rotating rod (7) is fixedly connected to one side of the two sliders (5). A pressure roller (8) is fixedly connected to the center of the rotating rod (7). (7) Gears (9) are fixedly connected to both sides of the pressure roller (8). An electric push rod (10) is fixedly connected to the support frame (1). A pressure frame (11) is fixedly connected to the output end of the electric push rod (10). A first through hole (12) is evenly opened on both sides of the pressure frame (11). A telescopic rod (13) is fixedly connected in the first through hole (12). A locking strip (14) is fixedly connected to the end of the telescopic rod (13) away from the first through hole (12). The locking strip (14) corresponds to the gear (9).

2. The wire-releasing pulley with braking function as described in claim 1, characterized in that, The bottom end of the pressure frame (11) is provided with an arc-shaped surface, and the pressure frame (11) is provided with a receiving groove (15) evenly on one side of the arc-shaped surface, and the receiving groove (15) is in contact with the card strip (14).

3. A wire-releasing pulley with braking function as described in claim 2, characterized in that, The pressure frame (11) is slidably connected to the limiting plate (16) in the first through hole (12). The limiting plate (16) has a first spring (17) in contact with one side. One end of the first spring (17) is in contact with one end inside the first through hole (12). The first spring (17) is sleeved on the telescopic rod (13).

4. A wire-releasing pulley with braking function as described in claim 3, characterized in that, The pressure frame (11) has a support ball (18) embedded on both sides away from the pressure roller (8), and the support ball (18) is in contact with the inner wall of the support frame (1).

5. A wire-releasing pulley with braking function as described in claim 4, characterized in that, The end of the pressure frame (11) away from the pulley (2) is fixedly connected to a plug rod (19), and the plug rod (19) is movably inserted into the support frame (1).

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