A cable expansion joint

Abstract

This utility model discloses a cable telescopic device, comprising: a fixed connecting rod assembly rotatably connected to a bracket; a sliding connecting rod assembly, the first end of which is rotatably connected to the fixed connecting rod assembly via a second rotating shaft, and the second end of which is connected to another bracket via a sliding assembly; a sliding assembly including at least one sliding connecting rod guide rail, the second end of which is rotatably connected to a slider of the sliding connecting rod guide rail via a third rotating shaft; the sliding connecting rod guide rail being fixedly connected to the bottom of the other bracket. At least one cable resting position is installed on the fixed connecting rod assembly and / or the sliding connecting rod assembly. Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, and by using the fixed connecting rod assembly, the sliding connecting rod assembly, the sliding assembly, and one cable resting position for each cable, it can solve the problem of cable interference during movement.

Description

Technical Field

[0001] This utility model belongs to the technical field of cable installation accessories, specifically relating to a cable expansion device. Background Technology

[0002] For cables installed on the bridge structure, when adjacent walls expand or contract due to factors such as temperature and wind, the existing cable supports fixed on the bridge deck will continuously pull and tug on the cable body as they move with the adjacent bridge decks. The current linkage-type expansion joints do not isolate different cable layers, and there is a risk of mutual interference between the cables during movement. Therefore, it is necessary to design a cable support expansion joint to solve the above problems. Utility Model Content

[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a cable telescopic device, comprising:

[0004] A fixed linkage assembly is rotatably connected to one of its brackets;

[0005] The sliding link assembly has a first end that is rotatably connected to the fixed link assembly via a second rotating shaft, and a second end that is connected to another bracket via a sliding assembly.

[0006] A sliding assembly includes at least one sliding link guide rail, the second end of which is rotatably connected to the slider of the sliding link guide rail via a third rotating shaft; the sliding link guide rail is fixedly connected to the bottom of another bracket.

[0007] At least one cable rest is installed on the fixed link assembly and / or the sliding link assembly.

[0008] Through the above technical solution, this utility model is provided with a fixed connecting rod assembly, a sliding connecting rod assembly, and a sliding assembly. As the cable elongates and contracts, the position can be adjusted to follow the cable, reducing the risk of cable pulling.

[0009] The fixed connecting rod assembly includes two fixed outer rods and at least one first support rod fixedly connecting the two fixed outer rods. The sliding connecting rod assembly includes two sliding outer rods and at least one second support rod fixedly connecting the two sliding outer rods. Pads are fixed to the fixed outer rods and sliding outer rods. An adaptive connecting piece is fixed between the two pads. A placement frame is fixed between the two adaptive connecting pieces. At least one clamp is fixed to the placement frame, forming the cable resting position. The fixed outer rods are rotatably connected to the bottom of one of their supports via a first rotating shaft.

[0010] Through the above technical solution, each clamp forms a cable resting position, which can prevent interference between adjacent cables.

[0011] Both the first and second supports include several vertical columns and horizontal columns fixedly connected to the vertical columns, and also include sliding support components, including:

[0012] Two longitudinal guide rails are installed on opposite sides of two opposing vertical columns;

[0013] Two horizontal guide rails are installed on opposite sides of two opposing horizontal columns;

[0014] Two spaced pulley blocks have their moving arms positioned at both ends via sliding pins in the grooves of the longitudinal and transverse guide rails on the same side.

[0015] A movable roller assembly is installed between two spaced pulley group moving arms. The first movable roller assembly includes: a pulley group support column 2, which is connected to the spaced pulley group moving arms on both sides by axle pins. At least one spaced pulley assembly is fixedly connected between the two pulley group support columns 2. The spaced pulley assembly includes a pulley shaft, and at least one roller is rotatably sleeved on the pulley shaft.

[0016] The end of the pulley block support column two is clamped and fixed to the spacer pulley assembly by the pulley block support column one. The height of the sliding support assembly is lower than the height of the cable resting position.

[0017] It also includes a fixed roller assembly, mounted on one of the supports and / or the second support, and at a height lower than the sliding support assembly. The fixed roller assembly includes two opposing pulley group support columns three, and a spacer pulley assembly fixed between the two pulley group support columns three. The end of each pulley group support column three is clamped and fixed to the spacer pulley assembly by a pulley group support column four; there are two pulley group support columns three, with the spacer pulley assembly clamped between the two pulley group support columns three.

[0018] The aforementioned movable roller assembly and fixed roller assembly form a modular structure, facilitating overall maintenance in the future.

[0019] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, and by using a fixed connecting rod assembly, a sliding connecting rod assembly, a sliding assembly, and a cable support position for each cable, it can solve the problem of mutual interference between cables during movement. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is a cross-sectional side view of the present invention;

[0022] Figure 3 This is a schematic diagram illustrating the use of this utility model;

[0023] Figure label:

[0024] 1. Sliding link assembly; 101 Sliding outer rod; 102 Second support rod; 2. Fixed link assembly; 201 Fixed outer rod; 202 First support rod; 31 Vertical column; 32 Horizontal column; 4. Interval pulley assembly; 5. Fixed pulley assembly; 6. Interval pulley block moving arm; 8. Horizontal guide rail; 9. Longitudinal guide rail; 10. Sliding link guide rail; 11. Pulley block support column three; 12. Shaft pin; 13. Pulley block support column one; 14. Pulley shaft; 15. Pulley block support column two; 16. Sliding pin; 17. Pulley block support column four; 18. Cable; 19. Pad; 20. Adaptive connecting piece; 21. Placement frame; 22. Clamp; 23. Slider; 24. Third rotating shaft; 25. Roller. Detailed Implementation

[0025] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0026] Referring to the accompanying drawings, this utility model adopts the following technical solution: a cable telescopic device, comprising:

[0027] Fixed link assembly 2 is rotatably connected to one of its brackets;

[0028] The sliding link assembly 1 has a first end that is rotatably connected to the fixed link assembly 2 via a second rotating shaft, and a second end that is connected to another bracket via a sliding assembly.

[0029] The sliding assembly includes at least one sliding link guide rail 10. The second end of the sliding link assembly 1 is rotatably connected to the slider 23 of the sliding link guide rail 10 via a third rotating shaft 24. The sliding link guide rail 10 is fixedly connected to the bottom of another bracket.

[0030] At least one cable 18 rest position is installed on the fixed link assembly 2 and / or the sliding link assembly 1.

[0031] Through the above technical solution, this utility model is provided with a fixed connecting rod assembly 2, a sliding connecting rod assembly 1, and a sliding assembly. As the cable 18 extends and retracts, the position can be adjusted to follow the cable 18, reducing the risk of the cable 18 being pulled by a vehicle.

[0032] The fixed connecting rod assembly 2 includes two fixed outer rods 201 and at least one first support rod 202 fixedly connecting the two fixed outer rods 201. The sliding connecting rod assembly 1 includes two sliding outer rods 101 and at least one second support rod 102 fixedly connecting the two sliding outer rods 101. Pads 19 are fixed to the fixed outer rods 201 and the sliding outer rods 101. An adaptive connecting piece 20 is fixed between the two pads 19. A placement frame 21 is fixed between the two adaptive connecting pieces 20. At least one clamp 22 is fixed to the placement frame 21, forming a mounting position for the cable 18. The fixed outer rods 201 are rotatably connected to the bottom of one of their supports via a first rotating shaft.

[0033] Through the above technical solution, each clamp 22 forms a cable 18 placement position, which can prevent adjacent cables 18 from interfering with each other.

[0034] Both the first and second supports include several vertical columns 31 and horizontal columns 32 fixedly connected to the vertical columns 31, and also include a sliding support assembly, including:

[0035] Two longitudinal guide rails 9 are installed on opposite sides of two opposing vertical columns 31;

[0036] Two transverse guide rails 8 are installed on opposite sides of two opposing transverse columns 32;

[0037] Two spaced pulley blocks of moving arms 6 are respectively mounted on the grooves of the longitudinal guide rail 9 and the transverse guide rail 8 on the same side via sliding pins 16;

[0038] A movable roller assembly is installed between two spaced pulley group moving arms 6. The first movable roller assembly includes: a pulley group support column 2 15, which is connected to the spaced pulley group moving arms 6 on both sides by axle pins 12. At least one spaced pulley assembly 4 is fixedly connected between the two pulley group support columns 2 15. The spaced pulley assembly 4 includes a pulley shaft 14, and at least one roller 25 is rotatably sleeved on the pulley shaft 14.

[0039] The end of the pulley block support column 2 15 is clamped and fixed with the spacer pulley assembly 4 by the pulley block support column 1 13. The height of the sliding support assembly is lower than the height of the cable 18 resting position.

[0040] It also includes a fixed roller assembly, mounted on one of the supports and / or the second support, and at a height lower than the sliding support assembly. The fixed roller assembly includes two opposing pulley block support columns 3 11 and a spacer pulley assembly 4 fixed between the two pulley block support columns 3 11. The end of each pulley block support column 3 11 is clamped and fixed with the spacer pulley assembly 4 by a pulley block support column 4 17; there are two pulley block support columns 3, and the spacer pulley assembly 4 is clamped between the two pulley block support columns 3.

[0041] The aforementioned movable roller assembly and fixed roller assembly form a modular structure, facilitating overall maintenance in the future.

[0042] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure and a neat appearance. By using the fixed connecting rod assembly 2, the sliding connecting rod assembly 1, the sliding assembly, and a cable 18 support position for each cable 18, the problem of mutual interference of cables 18 during movement can be solved.

[0043] In winter when the temperature is low, this utility model is in a contracted state, that is, the included angle between the fixed connecting rod assembly 2 and the sliding connecting rod assembly 1 is small, which meets the working condition of the cable 18 shrinking and shortening due to cold.

[0044] In the summer when the temperature is high, this utility model is in a stretched state to meet the working conditions of thermal expansion and lengthening of cable 18.

[0045] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A cable expansion joint, characterized in that: include: The fixed link assembly (2) is rotatably connected to one of its brackets; The sliding link assembly (1) has its first end rotatably connected to the fixed link assembly (2), and its second end connected to another bracket via the sliding assembly; The sliding assembly includes at least one sliding link guide rail (10), and the second end of the sliding link assembly (1) is rotatably connected to the slider (23) of the sliding link guide rail (10); At least one cable (18) rest is installed on the fixed link assembly (2) and / or the sliding link assembly (1).

2. The cable expansion joint according to claim 1, characterized in that: The fixed link assembly (2) includes two fixed outer rods (201) and at least one first support rod (202) that is fixedly connected to the two fixed outer rods (201). The sliding link assembly (1) includes two sliding outer rods (101) and at least one second support rod (102) that is fixedly connected to the two sliding outer rods (101).

3. The cable expansion joint according to claim 2, characterized in that: A pad (19) is fixed on the fixed outer rod (201) and the sliding outer rod (101). An adaptive connecting piece (20) is fixed between the two pads (19). A placement frame (21) is fixed between the two adaptive connecting pieces (20). At least one clamp (22) is fixed on the placement frame (21). The clamp (22) forms the cable (18) placement position.

4. The cable expansion joint according to claim 2, characterized in that: The fixed outer rod (201) is rotatably connected to the bottom of one of its supports via a first rotating shaft.

5. The cable expansion joint according to claim 1, characterized in that: Both the first and second supports include several vertical columns (31) and horizontal columns (32) that are fixedly connected to the vertical columns (31), and also include a sliding support assembly, including: Two longitudinal guide rails (9) are installed on opposite sides of two opposing vertical columns (31); Two transverse guide rails (8) are installed on opposite sides of two opposite transverse columns (32); The two spaced pulley blocks have their moving arms (6) positioned at both ends on the grooves of the longitudinal guide rail (9) and the transverse guide rail (8) on the same side, respectively. The movable roller assembly is installed between two spaced pulley group moving arms (6). The first movable roller assembly includes: pulley group support column two (15), which is connected to the spaced pulley group moving arms (6) on both sides respectively. At least one spaced pulley assembly (4) is connected between the two pulley group support columns two (15). The spaced pulley assembly (4) includes a pulley shaft (14), and at least one roller (25) is rotatably sleeved on the pulley shaft (14).

6. The cable expansion joint according to claim 5, characterized in that: The end of the pulley block support column two (15) is clamped and fixed with the spacer pulley assembly (4) by the pulley block support column one (13).

7. The cable expansion joint according to claim 6, characterized in that: The height of the sliding support assembly is lower than the height of the cable (18) resting position.

8. The cable expansion joint according to claim 5, characterized in that: It also includes a fixed roller assembly, mounted on one of the supports and / or the second support, and at a height lower than the sliding support assembly.

9. The cable expansion joint according to claim 8, characterized in that: The fixed roller assembly includes two opposing pulley support columns three (11) and a spacer pulley assembly (4) fixed between the two pulley support columns three (11).

10. The cable expansion joint according to claim 9, characterized in that: The end of the pulley block support column three (11) is clamped and fixed with the spaced pulley assembly (4) by the pulley block support column four (17). And / or, the pulley block support column three (11) is provided in two, and the spacer pulley assembly (4) is sandwiched between the two pulley block support columns three.

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