Cable buffer device

Abstract

The utility model relates to the technical field of cable laying, and discloses a cable buffer device, which comprises a mounting plate fixedly provided with a fixing frame. Two supporting plates are mounted on the fixing frame in a sliding manner; the two supporting plates are each provided with a fixing base in a sliding mode, and each fixing base is rotationally provided with a guide limiting wheel. The two guide limiting wheels are symmetrically arranged and abut against each other in a rolling mode, and the two fixing bases are connected with the corresponding supporting plates through elastic connecting pieces correspondingly. An adjusting mechanism is mounted on the fixing frame and is in transmission connection with the two supporting plates; a power supply and a controller are fixedly mounted in the mounting plate, the power supply is electrically connected with the controller, and the controller is electrically connected with the adjusting mechanism; a switch piece is arranged between each fixing base and the corresponding supporting plate, and the two switch pieces are electrically connected with the controller. The adjusting mechanism can be started through the switch piece to adjust the positions of the two supporting plates, so that the hardness of the two elastic connecting pieces is adjusted, and the tightness degree of a cable after being tightened is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of cable laying technology, and in particular to a cable buffer device. Background Technology

[0002] During the laying process, the cable will be supported by several brackets that are fixed to the external building. The power cable is laid on the brackets for auxiliary purposes, which can guide the movement of the cable and prevent the cable from sliding into the building.

[0003] The buffer-type power cable support described in announcement number CN221614519U includes a column, a buffer assembly, and at least two first sliders. The column is provided with a fixing part, and the first sliders are vertically slidable on the column and can be locked. The first sliders are horizontally connected to a crossbar. The buffer assembly includes a central shaft, a rotating cylinder, and at least two uprights. The two ends of the uprights are fixed to the two crossbars. The central shaft is parallel to the crossbars, and both ends of the central shaft are vertically slidable on the two uprights via second sliders. The side wall of the central shaft is provided with two limiting parts at intervals. The rotating cylinder is coaxially rotatably mounted on the central shaft and located between the two limiting parts. The two sides of the rotating cylinder are provided with first elastic elements between the limiting parts and the two sides of the limiting parts. The upper and lower sides of the second sliders are provided with second elastic elements between the upper and lower sides of the uprights and the ends of the uprights. A limiting rod is connected between the two limiting parts and the limiting rod is located above the rotating cylinder.

[0004] Based on the above technical features, the problem is that when the existing buffer components are used, after the cable is taut due to traction, the corner points or line change points of the cable will generate a large force due to the tension. This force acts on the buffer components. However, due to the reaction force, the cable also experiences a large reaction force from the buffer components. This leads to a decrease in the smoothness of cable movement or even a complete stop in movement. This will increase the cable laying time and reduce the cable laying efficiency.

[0005] Therefore, it is necessary to solve the above problems by means of a cable buffer device. Utility Model Content

[0006] The purpose of this invention is to provide a cable buffer device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cable buffer device, comprising a mounting plate, on which a fixing frame is fixedly mounted; two support plates are slidably mounted on the fixing frame, the two support plates being symmetrically arranged; a fixing seat is slidably mounted at the opposite ends of each of the two support plates, and a guide limiting wheel that rolls and abuts against the cable is rotatably mounted on each fixing seat; the two guide limiting wheels are symmetrically arranged and roll against each other, and both fixing seats are connected to their respective support plates through an elastic connector; a dynamic adjustment mechanism is mounted on the fixing frame, and the adjustment mechanism is drivenly connected to the two support plates; a power supply and a controller are fixedly mounted inside the mounting plate, the power supply being electrically connected to the controller, and the controller being electrically connected to the adjustment mechanism; a switch is provided between each of the two fixing seats and its respective support plate, and both switches are electrically connected to the controller.

[0008] Preferably, the adjusting mechanism includes a motor and a lead screw; the motor is fixedly mounted on a fixed frame, and the lead screw is rotatably mounted on the fixed frame; the output shaft of the motor is coaxially and fixedly connected to the lead screw, and the controller is electrically connected to the motor; the lead screw passes through two support plates and is threadedly connected to the two support plates.

[0009] Preferably, the fixing frame is a U-shaped frame structure, and a limiting groove is opened on each of the two opposite inner walls of the fixing frame. The two support plates are placed horizontally between the two limiting grooves and are in a limiting sliding fit with the two limiting grooves.

[0010] Preferably, the motor and the lead screw are installed in one of the limiting grooves; a limiting rod is fixedly installed in the other limiting groove, the limiting rod passing through two support plates, and both support plates are in a limiting sliding fit with the limiting rod.

[0011] Preferably, the switch includes a control button and a push rod; the push rod is fixed on the mounting base, and the control button is fixed on the support plate where the mounting base is located; the push rod and the control button are directly opposite each other and have a contact transmission engagement, and the control button is electrically connected to the controller.

[0012] Preferably, the elastic connector includes a spring; one end of the spring is fixedly connected to the fixed seat, and the other end of the spring is fixedly connected to the support plate where the fixed seat is located; a guide rod is fixedly installed on the fixed seat, the guide rod passes through the support plate where the fixed seat is located and slides with the support plate in a limiting manner; the spring is sleeved on the guide rod.

[0013] Preferably, a limiting cap is fixedly installed at the end of the guide rod away from the fixed seat.

[0014] Preferably, the guide rod is a square rod.

[0015] Preferably, both guide wheels have circumferential grooves, and the grooves on the two guide wheels are connected, through which the cable passes.

[0016] The technical effects and advantages of this utility model are as follows: When the cable is difficult to move due to excessive tension, the position of the two support plates can be adjusted by activating the adjustment mechanism through the switch, thereby adjusting the softness and hardness of the two elastic connectors, and thus adjusting the tightness of the cable after tensioning. It has a high degree of automation, requires no manual intervention, reduces cable laying time, and improves cable laying efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model.

[0019] In the diagram: 1. Mounting plate; 2. Mounting hole; 3. Fixing bracket; 4. Limiting groove; 5. Limiting rod; 6. Lead screw; 7. Motor; 8. First support plate; 9. Second support plate; 10. First guide rod; 11. Second guide rod; 12. First fixing seat; 13. Second fixing seat; 14. First guide limiting wheel; 15. Second guide limiting wheel; 16. First push rod; 17. Second push rod; 18. First control button; 19. Second control button; 20. First spring; 21. Second spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides, for example Figures 1 to 2 The cable buffer device shown includes a mounting plate 1. Mounting holes 2 are provided on the mounting plate 1 for fixing the mounting plate 1 to a building structure. A fixing frame 3 is fixedly mounted on the mounting plate 1; the fixing frame 3 has a U-shaped frame structure. A limiting groove 4 is provided on two opposite inner walls of the fixing frame 3, and the openings of the two limiting grooves 4 are aligned with each other.

[0022] Two support plates are horizontally placed between the two limiting grooves 4. The two support plates are parallel and symmetrically arranged. Both support plates are inserted into the two limiting grooves 4 and are in a limiting sliding fit with the two limiting grooves 4. One of the support plates is the first support plate 8, and the other support plate is the second support plate 9.

[0023] An adjustment mechanism is installed on the fixed frame 3, and the adjustment mechanism is located in one of the limiting grooves 4. The adjustment mechanism is driven by two support plates to push the two support plates to slide synchronously.

[0024] The adjusting mechanism includes a motor 7 and a lead screw 6. The motor 7 is fixedly installed in the corresponding limiting groove 4, and the lead screw 6 is rotatably installed in the corresponding limiting groove 4 along the sliding direction of the support plate. The motor 7 is fixedly connected to the fixing frame 3, and the lead screw 6 is rotatably connected to the fixing frame 3. The output shaft of the motor 7 is coaxially fixedly connected to the lead screw 6, and the lead screw 6 passes through the two support plates and is threadedly connected to the two support plates.

[0025] A limiting rod 5 is installed in another limiting groove 4 along the sliding direction of the support plate, and the limiting rod 5 is fixedly connected to the fixing frame 3. The limiting rod 5 passes through the two support plates, and both support plates are in a limiting sliding fit with the limiting rod 5.

[0026] Each of the two support plates has a fixed seat slidably mounted on its opposite ends, and the two fixed seats slide relative to each other. Each fixed seat is connected to its respective support plate via an elastic connector. One of the elastic connectors will be described below; the other is the same.

[0027] The elastic connector includes a spring. One end of the spring is fixedly connected to a fixed base, and the other end of the spring is fixedly connected to a support plate on which the fixed base is located. A guide rod is fixedly mounted on the fixed base, passing through the support plate and slidingly engaging with it. The spring is sleeved on the guide rod.

[0028] In this embodiment, the guide rod is a square rod, and a limiting cap is fixedly installed at the end of the guide rod away from the fixed seat.

[0029] In this embodiment, the two fixed seats are the first fixed seat 12 and the second fixed seat 13, the two springs are the first spring 20 and the second spring 21, and the two guide rods are the first guide rod 10 and the second guide rod 11.

[0030] Two fixed seats are located between two guide rods, and a guide limiting wheel is rotatably mounted on the opposite ends of each fixed seat. The two guide limiting wheels are symmetrically arranged and roll in contact with each other. Each guide limiting wheel has a groove along its circumference, and the grooves on the two guide limiting wheels are connected. The cable passes through the two grooves, and the two guide limiting wheels roll in contact with the cable.

[0031] In this embodiment, the two guide limiting wheels are the first guide limiting wheel 14 and the second guide limiting wheel 15.

[0032] A switch is installed between each of the two mounting bases and the supporting plate. The two switches are used to control the start and stop of motor 7. The following description uses one of the switches as an example; the other switch is the same.

[0033] The switch includes a control button and a push rod. The push rod is fixed to a mounting base, and the control button is fixed to a support plate on which the mounting base is located. The push rod and the control button are directly opposite each other and have a contact-type transmission engagement.

[0034] In this embodiment, the two control buttons are the first control button 18 and the second control button 19, and the two push rods are the first push rod 16 and the second push rod 17.

[0035] In this embodiment, the first support plate 8, the first fixed seat 12, the first spring 20, the first guide rod 10, the first guide limiting wheel 14, the first push rod 16, and the first control button 18 correspond to each other. The second support plate 9, the second fixed seat 13, the second spring 21, the second guide rod 11, the second guide limiting wheel 15, the second push rod 17, and the second control button 19 correspond to each other.

[0036] The power supply and controller are fixedly installed inside the mounting plate 1. The power supply is electrically connected to the controller, which is a microcontroller. Both control buttons are electrically connected to the controller, which is electrically connected to the motor 7.

[0037] Working principle: First, fix the mounting plate 1 to the building body through the mounting hole 2 using fixing tools such as screws or bolts. The fixing point is at the corner of the laying route.

[0038] Next, the cable is pulled through the grooves of two guide rollers, passing between them. Simultaneously, the guide rollers roll and contact the cable under the elastic force of two springs. Later, a change in the cable's laying path causes the cable to bend, pushing one of the guide rollers to move.

[0039] If the guide limiting wheel is the first guide limiting wheel 14, when the first guide limiting wheel 14 moves, it drives the first fixed seat 12 to move. The first fixed seat 12 compresses the first spring 20, and at the same time, the first fixed seat 12 moves closer to the first support plate 8.

[0040] As the cable continues to bend and tighten, the force exerted on the first guide limit wheel 14 gradually increases. During this process, the first guide limit wheel 14 drives the first fixed seat 12 to move continuously, and the first fixed seat 12 drives the first push rod 16 to move closer to the first control button 18.

[0041] When the first push rod 16 contacts the first control button 18, the motor 7 starts. The output shaft of the motor 7 rotates clockwise, driving the lead screw 6 to rotate. The lead screw 6 pushes the two support plates to slide synchronously in the direction of cable bending. At this time, under the elastic force of the first spring 20, the first support plate 8 moves away from the first fixed seat 12 relative to the first fixed seat 12, and the first push rod 16 gradually disengages from the first control button 18. Simultaneously, under the elastic force of the second spring 21, the second support plate 9 moves closer to the second fixed seat 13 relative to the second fixed seat 13.

[0042] When the first push rod 16 disengages from the first control button 18, the motor 7 shuts down. At this time, the force exerted on the first guide limit wheel 14 by the cable is reduced, allowing for smooth movement of the cable. Meanwhile, the two guide limit wheels can continue to provide support and guidance for the cable during movement.

[0043] If the guide limit wheel is the second guide limit wheel 15, then after the second push rod 17 contacts the second control button 19, the output shaft of the motor 7 rotates counterclockwise and drives the lead screw 6 to rotate. At this time, under the elastic force of the second spring 21, the second support plate 9 moves away from the second fixed seat 13 relative to the second fixed seat 13, and the second push rod 17 gradually disengages from the second control button 19. Simultaneously, under the elastic force of the first spring 20, the first support plate 8 moves closer to the first fixed seat 12 relative to the first fixed seat 12.

[0044] When the second push rod 17 disengages from the second control button 19, the motor 7 shuts down. At this time, the force exerted on the second guide limit wheel 15 by the cable is reduced, allowing for smooth movement of the cable. Meanwhile, the two guide limit wheels can continue to provide support and guidance for the cable during movement.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable buffer device, comprising a mounting plate (1), characterized in that: A fixing frame (3) is fixedly installed on the mounting plate (1); two support plates are slidably installed on the fixing frame (3), and the two support plates are symmetrically arranged; a fixing seat is slidably installed at the opposite ends of the two support plates, and a guide limit wheel that rolls against the cable is rotatably installed on each fixing seat; the two guide limit wheels are symmetrically arranged and roll against each other, and the two fixing seats are connected to the support plate through an elastic connector; a dynamic adjustment mechanism is installed on the fixing frame (3), and the adjustment mechanism is connected to the two support plates; a power supply and a controller are fixedly installed inside the mounting plate (1), the power supply is electrically connected to the controller, and the controller is electrically connected to the adjustment mechanism; a switch is provided between the two fixing seats and the support plate, and the two switches are electrically connected to the controller.

2. The cable buffer device according to claim 1, characterized in that: The adjustment mechanism includes a motor (7) and a lead screw (6); the motor (7) is fixedly mounted on a fixed frame (3), and the lead screw (6) is rotatably mounted on the fixed frame (3); the output shaft of the motor (7) is coaxially fixedly connected to the lead screw (6), and the controller is electrically connected to the motor (7); the lead screw (6) passes through two support plates and is threadedly connected to the two support plates.

3. A cable buffer device according to claim 2, characterized in that: The fixing frame (3) is a U-shaped frame structure. A limiting groove (4) is opened on two opposite inner walls of the fixing frame (3). The two support plates are placed horizontally between the two limiting grooves (4) and are limited and slidably engaged with the two limiting grooves (4).

4. A cable buffer device according to claim 3, characterized in that: The motor (7) and the lead screw (6) are installed in one of the limiting grooves (4); a limiting rod (5) is fixedly installed in the other limiting groove (4). The limiting rod (5) passes through the two support plates, and the two support plates are in a limiting sliding fit with the limiting rod (5).

5. A cable buffer device according to claim 1, characterized in that: The switch includes a control button and a push rod; the push rod is fixed on the mounting base, and the control button is fixed on the support plate where the mounting base is located; the push rod and the control button are directly opposite each other and have a contact transmission engagement, and the control button is electrically connected to the controller.

6. A cable buffer device according to claim 1, characterized in that: The elastic connector includes a spring; one end of the spring is fixedly connected to the fixed seat, and the other end of the spring is fixedly connected to the support plate where the fixed seat is located; a guide rod is fixedly installed on the fixed seat, the guide rod passes through the support plate where the fixed seat is located and slides with the support plate in a limiting manner; the spring is sleeved on the guide rod.

7. A cable buffer device according to claim 6, characterized in that: A limit cap is fixedly installed at the end of the guide rod away from the fixed seat.

8. A cable buffer device according to claim 6, characterized in that: The guide rod is a square rod.

9. A cable buffer device according to claim 1, characterized in that: Both guide wheels have circumferential grooves, and the grooves on the two guide wheels are connected. The cable passes through the two grooves.

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