Power cable buffer support device

Abstract

The utility model provides a kind of electric power cable buffer support device, it is related to cable support technical field, including stand, the upper end side of stand is provided with up-down buffer mechanism, up-down buffer mechanism includes installation platform, the lower end of installation platform is fixedly connected with support inclined block, and one end of support inclined block is fixedly connected with the side of stand, by first hydraulic damper, first buffer spring, swing rod and other components in up-down buffer mechanism, the buffer of cable up-down direction traction force is realized, avoid excessive pull damage cable, and prevent reciprocating vibration when resetting, left and right buffer mechanism rely on second hydraulic damper, second buffer spring, arc slide strip etc., and the buffer of left and right direction traction force, avoid cable left and right reciprocating shake, to reduce the wear and tear of cable, while the cooperation of protective cover and the communication square tube, the overall protection of device, reduce external environment influence, prolong service life, guarantee the safety and stability effect of electric power cable laying process.

Description

Technical Field

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

[0002] During the laying of power cables, they are fixed to external buildings at several points. The power cables overlap the supports, and the pulling of the cables will cause sliding friction between the cables and the supports. This sliding friction will cause a certain amount of wear to the power cables. In practical applications, due to factors such as the pulling angle and the installation error of the supports, the cable pulling is not entirely along the length of the cable, but also in the vertical and horizontal directions. Vertical pulling can easily cause the cable to come off, while horizontal pulling can easily cause wear to the cable.

[0003] For example, a buffer-type power cable support disclosed in Chinese patent literature (publication number: CN221614519U) uses a column, a buffer assembly, and at least two first sliders. During normal use, the cable is placed on a rotating drum. When the cable is pulled along its length, the drum rotates, creating static friction between the cable and the drum, reducing wear. When the cable is pulled vertically, a limiting rod prevents the cable from slipping out. The second elastic elements on the upper and lower sides of the second slider buffer the vertical movement of the cable. When the cable is pulled horizontally, the first elastic elements on both sides of the rotating drum buffer the movement, reducing wear caused by friction between the cable and the drum. This invention can buffer the power cable in all directions, preventing cable slippage and wear during traction.

[0004] However, the device is completely exposed to the elements. The first and second elastic elements are not only susceptible to wind and rain erosion, reducing their service life, but also the wind force is generally strong at high altitudes. The device relies solely on the elastic deformation of the first and second elastic elements for buffering. When strong winds act on the cable, the elastic elements will repeatedly expand and contract with the wind force, causing the cable to sway continuously. This results in additional friction between the cable and the rotating drum and the limiting rod, leading to cable wear. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as poor protection of cable supports, short service life, and easy cable wear.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A power cable buffer support device includes a column, and an upper and lower buffer mechanism is provided on one side of the upper end of the column.

[0008] The upper and lower buffer mechanism includes a mounting platform. A supporting inclined block is fixedly connected to the lower end of the mounting platform. One end of the supporting inclined block is fixedly connected to one side of the column. A symmetrically distributed limiting slide groove is opened at the upper end of the mounting platform. A first hydraulic damper is fixedly installed on one side inner wall of the limiting slide groove. A limiting slider is fixedly connected to one end of the first hydraulic damper. The outside of the limiting slider is slidably sleeved with the inner wall of the limiting slide groove. A first buffer spring is fixedly connected to one side inner wall of the limiting slide groove. One end of the first buffer spring is fixedly connected to one side of the limiting slider.

[0009] A left and right buffer mechanism is provided above the mounting platform.

[0010] Preferably, the upper end of the limiting slider is fixedly connected to a first support, the inner wall of the first support is hinged to a swing rod by a pin, and one end of the swing rod is hinged to a second support by a pin.

[0011] Preferably, each of the two second supports is fixedly connected to a mounting plate at its upper end, and the inner wall of the mounting plate is slidably fitted with guide rods arranged in a rectangular array, the lower ends of the multiple guide rods being fixedly connected to the upper end of the mounting platform.

[0012] Preferably, a stop block is fixedly connected to the upper end of the guide rod, a fixed base is fixedly connected to the lower end of the column, a protective cover is fixedly connected to the upper end of the mounting platform, and symmetrically distributed connecting square tubes are fixedly connected to the front and back of the protective cover.

[0013] Preferably, the left and right buffer mechanism includes two upright plates, the lower ends of which are symmetrically distributed and fixedly connected to the upper end of the mounting plate. The inner walls of both upright plates are rotatably connected to limit rods via bearings, and a first rubber pad is fixedly sleeved on the outside of each limit rod.

[0014] Preferably, each of the two upright plates is fixedly connected to a fixed rod at one of its opposite ends. The fixed rod has an arc-shaped sliding groove arranged in a ring array on its outer side. An arc-shaped sliding strip is slidably connected to the inner wall of the arc-shaped sliding groove. A movable tube is fixedly connected to the outer side of each of the multiple arc-shaped sliding strips. The inner wall of the movable tube is slidably sleeved with the outer side of the fixed rod.

[0015] Preferably, symmetrically distributed retaining rings are fixedly sleeved on both ends of the movable tube, and a second rubber pad is fixedly connected to one side of the retaining ring. A supporting rotating tube is rotatably connected to the outside of the movable tube through a bearing. A symmetrically distributed second hydraulic damper is fixedly installed on one side of the upright plate, and one end of each of the two second hydraulic dampers is fixedly connected to the other side of the retaining ring. A symmetrically distributed second buffer spring is fixedly connected to one side of the upright plate, and one end of each of the two second buffer springs is fixedly connected to the other side of the retaining ring.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the upper and lower buffer mechanisms utilize components such as the first hydraulic damper, the first buffer spring, and the swing rod to buffer the vertical traction force on the cable, preventing excessive pulling and damage to the cable, and preventing reciprocating vibration during reset. The left and right buffer mechanisms rely on the second hydraulic damper, the second buffer spring, and the arc-shaped slide to buffer the horizontal traction force, preventing the cable from shaking back and forth, significantly improving the buffering effect during cable laying, thereby reducing cable wear. At the same time, the cooperation between the protective cover and the connecting square tube provides overall protection for the device, reducing the impact of the external environment, extending the service life, and ensuring the safety and stability of the power cable laying process. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a power cable buffer support device provided by this utility model;

[0019] Figure 2 A perspective view of the mounting platform structure of a power cable buffer support device provided by this utility model;

[0020] Figure 3 An exploded view of the mounting platform structure of a power cable buffer support device provided by this utility model;

[0021] Figure 4 A perspective view of the vertical plate structure of a power cable buffer support device provided by this utility model;

[0022] Figure 5 An exploded view of the fixing rod structure of a power cable buffer support device provided by this utility model.

[0023] Legend: 1. Column; 2. Mounting platform; 21. Supporting inclined block; 22. Limiting groove; 23. First hydraulic damper; 24. Limiting slider; 25. First buffer spring; 26. First support; 27. Swing rod; 28. Second support; 29. ​​Mounting plate; 210. Guide rod; 211. Stop block; 212. Fixed base; 213. Protective cover; 214. Connecting square tube; 3. Vertical plate; 31. Limiting rotating rod; 32. First rubber pad; 33. Fixed rod; 34. Arc-shaped groove; 35. Arc-shaped sliding strip; 36. Moving tube; 37. Retaining ring; 38. Second rubber pad; 39. Supporting rotating tube; 310. Second hydraulic damper; 311. Second buffer spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to 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.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figures 1-5 As shown, this utility model provides a technical solution: a power cable buffer support device, including a column 1 and an upper and lower buffer mechanism at the upper end of the column 1, which constructs an efficient buffer system for the traction force of the cable in the vertical direction, providing key protection against excessive traction for the high-altitude laying of power cables.

[0030] The fixed connection between the support inclined block 21 and the column 1 and the mounting platform 2 makes the mounting platform 2 form a triangular stable support structure, ensuring that the mounting platform 2 remains stable when subjected to large cable pulling force, and providing a solid working foundation for subsequent buffer components.

[0031] Inside the limiting slide groove 22 on the mounting platform 2, the first hydraulic damper 23 and the first buffer spring 25 work together. The elastic coefficient of the first buffer spring 25 is 20N / mm, which can provide a buffer force of more than 500N. It can quickly absorb the instantaneous pulling force of the cable in the vertical direction, such as the impact force caused by sudden changes in wind force or the start and stop of traction equipment.

[0032] The first hydraulic damper 23 has a damping coefficient of 100 N·s / m. When the limit slider 24 slides, it consumes energy through hydraulic damping, effectively preventing the mounting plate 29 from reciprocating due to spring rebound after buffering, and preventing the cable from being worn down by repeated pulling.

[0033] The articulated transmission assembly consisting of the first support 26, the swing rod 27, and the second support 28 can accurately convert the lifting motion of the mounting plate 29 into the sliding motion of the limit slider 24, ensuring that the upper and lower buffering mechanism can respond to the up and down pulling action of the cable in real time and quickly, avoiding untimely buffering due to transmission lag, and ensuring that the pulling force of the cable in the up and down direction can be buffered in the first time.

[0034] The sliding fit between the mounting plate 29 and the guide rod 210 ensures that the straightness deviation of the mounting plate 29 is less than 0.1mm when it is raised and lowered. This ensures that the mounting plate 29 drives the left and right buffer mechanisms to rise and fall smoothly, avoids uneven force on the cable due to the tilt of the mounting plate 29, further ensures the stability of the cable during the up and down buffering process, and reduces the risk of additional wear.

[0035] The stop block 211 can effectively limit the lifting stroke of the mounting plate 29, prevent the mounting plate 29 from excessively lifting and falling off the guide rod 210, and ensure the safe operation of the device. The fixed base 212 is fixed with expansion bolts, with a fixing strength of 1000N, so that the device is firmly fixed in the installation position, improving the device's resistance to wind and external interference. The protective cover 213 and the connecting square tube 214 have a protection level of IP54, which can effectively block rainwater intrusion.

[0036] The left and right buffering mechanism above the mounting platform 2 creates a precise buffering system for the lateral traction force of the cable, which is suitable for scenarios where the power cable is pulled left and right due to deviations in traction angle and wind force during installation.

[0037] The limiting rod 31 on the upright plate 3 is rotatably connected to the upright plate 3 through a bearing. During normal cable traction, it can rotate synchronously with the cable, so that the friction between the cable and the limiting rod 31 is changed from sliding friction to rolling friction, reducing the coefficient of friction to below 0.2. The first rubber pad 32 on the outside has a Shore hardness of 60-70 and has good elasticity and wear resistance. It can further buffer the impact force between the cable and the limiting rod 31, with a buffering force of up to 200N. At the same time, it avoids hard scratch damage to the cable outer sheath and protects the integrity of the cable outer sheath.

[0038] The cooperation between the arc-shaped groove 34 and the arc-shaped slide bar 35 on the fixed rod 33 ensures that the radial runout of the moving tube 36 is less than 0.1mm when it slides along the fixed rod 33, resulting in high smoothness of sliding. This provides a stable motion basis for the buffering of the cable in the left and right directions, ensuring that the moving tube 36 drives the supporting rotating tube 39 and other components to move smoothly, and avoiding sudden changes in cable stress caused by sliding jamming, which would aggravate wear.

[0039] The retaining ring 37, the second rubber pad 38, the supporting rotating tube 39, the second hydraulic damper 310, and the second buffer spring 311 on the moving tube 36 work together. The second rubber pad 38 has a Shore hardness of 50-60, which can make flexible contact with the cable and initially buffer the lateral pulling force of the cable. The buffering force reaches 100N, avoiding damage to the cable from hard collisions.

[0040] The support tube 39 is rotatably connected to the moving tube 36 via a bearing. The rotational friction torque is less than 0.3 N·m, which can further reduce the contact friction with the cable and make the cable move more smoothly when pulled left and right. The second buffer spring 311 has an elastic coefficient of 15 N / mm and can provide a buffer force of more than 300 N. It absorbs the pulling force of the cable in the left and right directions by its own extension and contraction.

[0041] The second hydraulic damper 310 has a damping coefficient of 80 N·s / m. It provides damping force and consumes energy when the retaining ring 37 moves, effectively preventing the cable from shaking back and forth due to the spring rebound. It also prevents the cable from aggravating wear due to repeated left and right movements, making the buffer protection of the cable in the left and right directions more efficient and stable.

[0042] The working process of this utility model:

[0043] Step one: Pass the power cable through the connecting square tube 214 on the front of the protective cover 213, into the interior of the protective cover 213, then through the gap between the supporting rotating tube 39 and the limiting rotating rod 31, and finally through the connecting square tube 214 on the back of the protective cover 213. This completes the cable laying on the device and prepares for subsequent buffer protection. When the cable is subjected to a large vertical traction force, firstly, the limiting rotating rod 31 limits the cable to prevent it from detaching from the device. At the same time, the cable's pulling force will cause the mounting plate 29 to move up and down along the guide rod 210. If the mounting plate 29 moves downward, the lower end of the mounting plate 29... The second support 28 will drive the swing rod 27 to move, and the swing rod 27 will in turn drive the first support 26, causing the limiting slider 24 to slide in the limiting groove 22. At this time, the first buffer spring 25 is compressed and contracts to buffer, and the first hydraulic damper 23 also plays a role in consuming energy to prevent the mounting plate 29 from reciprocating when it is reset, effectively buffering the traction force in the vertical direction and preventing the cable from being damaged due to excessive pulling. If the mounting plate 29 moves upward, the principle is similar. The first buffer spring 25 will be stretched, and the first hydraulic damper 23 will also assist in buffering to ensure that the traction force in the vertical direction is effectively relieved.

[0044] Step two: When the cable is subjected to a large lateral traction force, the second rubber pad 38 first makes flexible contact with the cable, playing a preliminary buffering and blocking role. Then, the cable's traction force will drive the moving tube 36 to move through the retaining ring 37. The arc-shaped slide bar 35 on the moving tube 36 moves along the arc-shaped slide groove 34 on the fixed rod 33. During the movement, two of the second buffer springs 311 are stretched, and the other two are contracted. The springs' extension and contraction buffer the impact force during the pull. At the same time, the second hydraulic damper 310 will also work, consuming energy and preventing the cable from shaking back and forth, further ensuring the safety of the cable when subjected to lateral traction force. Throughout the entire cable laying and buffering process, the protective cover 213 and the connecting square tube 214 cooperate with each other to enclose the core components such as the upper and lower buffering mechanisms and the left and right buffering mechanisms, playing a good protective role, reducing the impact of external environmental factors such as wind, rain, and dust on the device, and improving the service life of the device.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power cable buffer support device, comprising a column (1), characterized in that: The upper end of the column (1) is provided with an upper and lower buffer mechanism; The upper and lower buffer mechanism includes a mounting platform (2), a support inclined block (21) is fixedly connected to the lower end of the mounting platform (2), one end of the support inclined block (21) is fixedly connected to one side of the column (1), the upper end of the mounting platform (2) is provided with symmetrically distributed limiting grooves (22), a first hydraulic damper (23) is fixedly installed on one side of the inner wall of the limiting groove (22), a limiting slider (24) is fixedly connected to one end of the first hydraulic damper (23), the outside of the limiting slider (24) is slidably sleeved with the inner wall of the limiting groove (22), a first buffer spring (25) is fixedly connected to one side of the inner wall of the limiting groove (22), and one end of the first buffer spring (25) is fixedly connected to one side of the limiting slider (24). A left and right buffer mechanism is provided above the mounting platform (2).

2. The power cable buffer support device according to claim 1, characterized in that: The upper end of the limiting slider (24) is fixedly connected to a first support (26), and the inner wall of the first support (26) is hinged to a swing rod (27) by a pin. One end of the swing rod (27) is hinged to a second support (28) by a pin.

3. The power cable buffer support device according to claim 2, characterized in that: The upper ends of the two second supports (28) are fixedly connected to mounting plates (29), and the inner wall of the mounting plates (29) is slidably fitted with guide rods (210) arranged in a rectangular array. The lower ends of the multiple guide rods (210) are fixedly connected to the upper end of the mounting platform (2).

4. The power cable buffer support device according to claim 3, characterized in that: The upper end of the guide rod (210) is fixedly connected to a stop block (211), the lower end of the column (1) is fixedly connected to a fixed base (212), the upper end of the mounting platform (2) is fixedly connected to a protective cover (213), and the front and back of the protective cover (213) are fixedly connected to symmetrically distributed square tubes (214).

5. The power cable buffer support device according to claim 3, characterized in that: The left and right buffer mechanism includes upright plates (3), the lower ends of the two upright plates (3) are symmetrically distributed and fixedly connected to the upper end of the mounting plate (29), and the inner walls of the two upright plates (3) are rotatably connected to limit rods (31) through bearings. The outer side of the limit rods (31) is fixedly sleeved with a first rubber pad (32).

6. The power cable buffer support device according to claim 5, characterized in that: Each of the two upright plates (3) is fixedly connected to a fixed rod (33) at one end. The fixed rod (33) has an arc-shaped sliding groove (34) arranged in a ring array on its outer side. The inner wall of the arc-shaped sliding groove (34) is slidably connected to an arc-shaped sliding strip (35). The outer sides of the multiple arc-shaped sliding strips (35) are fixedly connected to a moving tube (36). The inner wall of the moving tube (36) is slidably sleeved with the outer side of the fixed rod (33).

7. A power cable buffer support device according to claim 6, characterized in that: The moving tube (36) is externally fitted with symmetrically distributed retaining rings (37) at both ends. A second rubber pad (38) is fixedly connected to one side of the retaining ring (37). A supporting rotating tube (39) is rotatably connected to the outside of the moving tube (36) through a bearing. A second hydraulic damper (310) is fixedly installed on one side of the upright plate (3). One end of each of the two second hydraulic dampers (310) is fixedly connected to the other side of the retaining ring (37). A second buffer spring (311) is fixedly connected to one side of the upright plate (3). One end of each of the two second buffer springs (311) is fixedly connected to the other side of the retaining ring (37).

Images