A cable tray expansion joint for preventing cable displacement

Abstract

The present invention discloses a cable tray expansion joint for preventing cable displacement, comprising an expansion joint body and a cable tray body, a support block being provided above the cable tray body, a clamping block being provided above the support block, a shock absorbing assembly being provided below the support block, a transmission assembly being provided above the expansion joint body, and linkage assemblies for driving the clamping blocks to clamp or release the cables being provided on both sides above the cable tray body, while the linkage assemblies are used to lock or release the cable tray body and the expansion joint body. In the present invention, by pulling the cable tray body on one side, the cable tray body on one side moves outward, and at the same time, the cable tray body on one side drives the cable tray body on the other side to move outward synchronously through the transmission assembly, so that the cable tray body on the left moves outward or inward by the same distance as the cable tray body on the right moves outward or inward.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of cable trays, and in particular to an expansion joint of a cable tray for preventing cable displacement. Background Art

[0002] Cable trays are divided into trough type, tray type, ladder type, grid type and other structures. They are composed of brackets, supports and installation accessories. The cable trays can be erected independently in buildings or laid on various buildings (structures) and pipe gallery brackets.

[0003] When the left and right sections of the cable tray are connected, they are usually connected through a telescopic joint. The telescopic joint can extend and adjust the length of the cable tray. However, when the existing telescopic joints are used to adjust the lengths of the cable trays on both sides, they need to be adjusted one by one. In this way, it is easy for the length of the cable tray on one side to be adjusted longer and the length of the cable tray on the other side to be adjusted shorter. In this way, the forces on both sides of the telescopic joint are different, the center of gravity will be offset, which will reduce the life of the telescopic joint and also affect the shock absorption effect of the cable tray. Summary of the Invention

[0004] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. It mainly provides a cable tray expansion joint that prevents cable displacement, which is used to solve the technical problem proposed in the above background technology that when the existing expansion joint adjusts the length of the cable trays on both sides, the cable trays on both sides need to be adjusted one by one, which will result in different adjustment lengths of the cable trays on both sides, resulting in different forces on the expansion joint and center of gravity shift, which will reduce the life of the expansion joint and affect the shock absorption effect of the cable tray.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A cable tray expansion joint for preventing cable displacement, comprising an expansion joint body and a cable tray body, the cable tray body being arranged on both sides above the expansion joint body, a support block being arranged above the cable tray body, a clamping block for clamping and fixing the cable being arranged above the support block, a shock-absorbing component for shock-absorbing and protecting the cable being arranged below the support block, a transmission component for driving the cable tray bodies on both sides to extend outward or contract inward synchronously being arranged above the expansion joint body, a linkage component for driving the clamping blocks to clamp or release the cables being arranged on both sides above the cable tray body, and the linkage component being used to lock or release the cable tray body and the expansion joint body.

[0007] Preferably, the shock absorbing assembly includes a telescopic sleeve rod, the upper end of the telescopic sleeve rod is fixedly mounted on the bottom of the support block, the lower end of the telescopic sleeve rod is fixedly mounted above the cable tray body, and a spring is sleeved on the telescopic sleeve rod.

[0008] Preferably, a bracket is provided above the support block, and the clamping blocks on both sides above the support block are hinged to the bracket respectively.

[0009] Preferably, the linkage assembly includes a sliding rod, a sliding groove is provided on the cable tray body, and the lower end of the sliding rod is slidably connected inside the sliding groove.

[0010] Preferably, the lower end of the sliding rod is slidably connected to a fixing rod, and the fixing rod is also slidably connected to the sliding groove. A fixing groove is provided inside the sliding groove, and the fixing rod is inserted into the fixing groove.

[0011] Preferably, a support rod is fixedly mounted on the upper end of the sliding rod, a push rod is fixedly mounted on one side of the support rod, and the push rod is movably connected to one side of the clamping block at one end away from the support rod.

[0012] Preferably, a linkage rod is hinged on the lower side of the support rod, the linkage rod is rotatably connected to the top of the cable tray body, and the linkage rod is hinged to the clamping rod at one end away from the support rod.

[0013] Preferably, lifting grooves are provided on both sides of the cable tray body, and clamping grooves are provided on both sides of the telescopic joint body, and the clamping rod passes through the lifting grooves and is inserted into the clamping grooves.

[0014] Preferably, the transmission assembly includes a rotating rod, which is rotatably connected to the front and rear sides of the telescopic joint main body base, and a pulley group is provided between the two rotating rods. Flat gears are fixedly installed at both ends of the rotating rod, and tooth grooves are respectively provided on both sides of the bottom of the cable tray main body, and the flat gears are meshed with the tooth grooves.

[0015] Preferably, limiting grooves are provided on the side walls on both sides of the telescopic joint body, and limiting blocks are fixedly installed on the side walls on both sides of the cable tray body, and the limiting blocks are slidably connected to the inside of the limiting grooves.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by pulling the cable tray body on one side, the cable tray body on one side moves outward, and at the same time, the cable tray body on one side will drive the cable tray body on the other side to move outward synchronously through the transmission assembly, so that the cable tray body on the left moves outward or inward by the same distance, and the cable tray body on the right will also move outward or inward by the same distance. In this way, the length and weight of the cable tray bodies on both sides of the telescopic joint body can be kept consistent, the center of gravity of the telescopic joint body can be kept stable, and the telescopic joint body can be protected.

[0017] At the same time, the linkage assembly connects the pushing rod and the clamping rod. When the pushing rod pushes the clamping block to move inward to clamp and fix the cable, the clamping rod will also move outward to pass through the cable tray body and insert into the clamping groove on the telescopic joint body. When the cable tray needs to be extended, the clamping rod can be pulled out from the inside of the clamping groove. At this time, the pushing rod will also drive the clamping block to move outward to loosen the cable. At this time, the cable tray bodies on both sides can be moved. In this way, when the cable tray body and the telescopic joint body are locked, the clamping block also clamps and fixes the cable. When the lock between the cable tray body and the telescopic joint body is released, the clamping block also loosens the cable. In this way, the cable will not affect the movement of the cable tray body, which is convenient and practical.

[0018] A vibration component is provided at the bottom of the supporting block under each clamping block. When vibration occurs, the vibration component will shock-absorb and buffer the clamping block, thereby achieving shock-absorb and buffer the cable and playing a role in protecting the cable.

[0019] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the side three-dimensional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention from a top view;

[0023] Figure 4 Schematic diagram of the internal structure of the cable tray body in the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of the telescopic joint body in the present invention;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the bottom of the cable tray of the present invention;

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the telescopic joint body of the present invention;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the clamping block of the present invention;

[0028] Figure 9 for Figure 3 A in the middle is an enlarged structural diagram;

[0029] The following are marked in the figure:

[0030] 1. Telescopic joint body; 2. Cable tray body; 3. Support block; 4. Telescopic sleeve rod; 5. Spring; 6. Clamping block; 7. Push rod; 8. Snap-fit ​​rod; 9. Linkage rod; 10. Support rod; 11. Sliding rod; 12. Fixed rod; 13. Sliding groove; 14. Fixed groove; 15. Lifting groove; 16. Snap-fit ​​groove; 17. Tooth groove; 18. Rotating rod; 19. Flat gear; 20. Pulley assembly; 21. Limiting groove; 22. Limiting block. DETAILED DESCRIPTION

[0031] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly used by those skilled in the art to which the present invention pertains. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] Please refer to the attached Figures 1-9 A cable tray expansion joint for preventing cable displacement, comprising a expansion joint body 1 and a cable tray body 2, the cable tray body 2 being arranged on both sides above the expansion joint body 1, a support block 3 being arranged above the cable tray body 2, a clamping block 6 for clamping and fixing the cable being arranged above the support block 3, a shock-absorbing component for shock-absorbing protection of the cable being arranged below the support block 3, a transmission component for driving the cable tray bodies 2 on both sides to extend outward or retract inward synchronously being arranged above the expansion joint body 1, a linkage component for driving the clamping block 6 to clamp or release the cable being arranged on both sides above the cable tray body 2, and at the same time, the linkage component is used to lock or release the cable tray body 2 and the expansion joint body 1.

[0035] The specific operation process of the present invention is as follows: push the linkage component, and release the lock between the cable tray main body 2 and the telescopic joint main body 1 through the linkage component. At this time, the linkage component will also release the clamping block 6 that clamps and fixes the cable, and then pull the cable tray main body 2 on one side outward. While the cable tray main body 2 on one side moves outward, it will drive the cable tray main body 2 on the other side to move outward synchronously through the transmission component. After adjusting the extension length of the cable tray main body 2 on both sides, push the linkage component back. The linkage component locks the cable tray main body 2 and the telescopic joint main body 1. At the same time, the linkage component will drive the clamping block 6 to clamp and fix the cable. The support block 3 under the clamping block 6 is provided with a shock-absorbing component, which can reduce the vibration caused to the cable and play a role in protecting the cable.

[0036] Please refer to Figure 8 The shock-absorbing assembly includes a telescopic rod 4, the upper end of the telescopic rod 4 is fixedly installed on the bottom of the support block 3, and the lower end of the telescopic rod 4 is fixedly installed above the cable tray body 2. A spring 5 is provided on the telescopic rod 4, and a bracket is provided above the support block 3. The clamping blocks 6 on both sides above the support block 3 are respectively hinged to the bracket.

[0037] When vibration occurs, the support block 3 will compress the spring 5 below, and the spring 5 will absorb and buffer the vibration generated by the support block 3, thereby achieving the effect of shock absorption and buffering for the cable clamped and fixed by the upper clamping block 6.

[0038] Please refer to Figures 1-9 The linkage assembly includes a sliding rod 11, a sliding groove 13 is provided on the cable tray body 2, the lower end of the sliding rod 11 is slidably connected to the inside of the sliding groove 13, the lower end of the sliding rod 11 is slidably connected to the fixed rod 12, the fixed rod 12 is also slidably connected to the sliding groove 13, a fixed groove 14 is provided inside the sliding groove 13, the fixed rod 12 is inserted into the fixed groove 14, the upper end of the sliding rod 11 is fixedly installed with a support rod 10, and a push rod 7 is fixedly installed on one side of the support rod 10, and the push rod 7 is movably connected to one side of the clamping block 6 at one end away from the support rod 10.

[0039] Pull the fixed rod 12, the fixed rod 12 drives the sliding rod 11 to move left and right along the sliding groove 13, the support rod 10 drives the pushing rod 7 to move left and right, the pushing rod 7 drives the clamping block 6 to move inward, and the clamping blocks 6 on both sides move inward relatively, and the clamping blocks 6 clamp and fix the cable. After the clamping blocks 6 clamp and fix the cable, push the fixed rod 12 inward, and the fixed rod 12 is inserted into the fixing groove 14. At this time, the sliding rod 11 is fixed, and the clamping block 6 cannot move to fix the cable. The sliding rod 11 is a sleeve rod.

[0040] Please refer to Figure 1 、 Figure 3 and Figure 8A linkage rod 9 is hinged on the lower side of the push rod 7, and the linkage rod 9 is rotatably connected to the top of the cable tray body 2. The end of the linkage rod 9 away from the push rod 7 is hinged to the clamping rod 8. Lifting grooves 15 are opened on both sides of the cable tray body 2, and clamping grooves 16 are opened on both sides of the telescopic joint body 1. The clamping rod 8 passes through the lifting groove 15 and is inserted into the clamping groove 16.

[0041] When the pushing rod 7 moves inward, the pushing rod 7 will drive the clamping rod 8 to move outward through the linkage rod 9. The clamping rod 8 passes through the lifting groove 15 and is inserted into the clamping groove 16. The clamping groove 16 and the lifting groove 15 are both long grooves. The clamping rod 8 can move up and down a certain distance inside the lifting groove 15 and the clamping groove 16. The function of the clamping rod 8 inserted into the clamping groove 16 is to lock the cable tray body 2 and the telescopic joint body 1 with each other, so that the cable tray body 2 and the telescopic joint body 1 cannot move forward and backward.

[0042] Please refer to Figure 5-Figure 7 The transmission assembly includes a rotating rod 18, which is rotatably connected to the front and rear sides of the base of the telescopic section body 1, and a pulley group 20 is provided between the two rotating rods 18. Flat gears 19 are fixedly installed at both ends of the rotating rod 18. Tooth grooves 17 are respectively provided on both sides of the bottom of the cable tray body 2. The flat gears 19 are engaged with the tooth grooves 17. Restriction grooves 21 are provided on the side walls of both sides of the telescopic section body 1, and restriction blocks 22 are fixedly installed on the side walls of both sides of the cable tray body 2. The restriction blocks 22 are slidably connected to the inside of the restriction grooves 21.

[0043] The limiting blocks 22 provided on both sides of the cable tray body 2 cooperate with the limiting grooves 21 opened on the side walls of the telescopic joint body 1 to limit the cable tray body 2 to only maintain a straight line forward and backward movement. Pull the cable tray body 2 on one side, and the cable tray body 2 on one side drives the two flat gears 19 below to rotate through the tooth groove 17. The flat gear 19 drives the rotating rod 18 to rotate. The rotating rod 18 drives the rotating rod 18 on the other side to rotate through the pulley group 20. The rotating rod 18 on the other side drives the flat gear 19 to rotate, and the flat gear 19 cooperates with the tooth groove 17 to drive the cable tray body 2 on the other side to move outward synchronously. In this way, by pulling the cable tray body 2 on one side, the cable tray body 2 on the other side can be driven to move synchronously, keeping the extended or retracted length of the cable tray bodies 2 on both sides consistent.

[0044] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A cable bridge expansion joint for preventing cable displacement, comprising an expansion joint body (1) and a cable bridge body (2), wherein the cable bridge body (2) is arranged on both sides above the expansion joint body (1), and is characterized in that: A support block (3) is provided above the cable tray body (2), a clamping block (6) for clamping and fixing the cable is provided above the support block (3), a shock-absorbing component for shock-absorbing and protecting the cable is provided below the support block (3), a transmission component for driving the cable tray bodies (2) on both sides to extend outward or retract inward synchronously is provided above the telescopic joint body (1), linkage components for driving the clamping blocks (6) to clamp or release the cable are provided on both sides above the cable tray body (2), and the linkage components are used to lock or release the cable tray body (2) and the telescopic joint body (1); The linkage assembly comprises a sliding rod (11), a sliding groove (13) is provided on the cable bridge main body (2), and the lower end of the sliding rod (11) is slidably connected inside the sliding groove (13).

2. The cable tray expansion joint for preventing cable displacement according to claim 1, characterized in that: The shock absorbing assembly comprises a telescopic sleeve rod (4), the upper end of the telescopic sleeve rod (4) is fixedly mounted on the bottom of the support block (3), the lower end of the telescopic sleeve rod (4) is fixedly mounted above the cable bridge main body (2), and a spring (5) is sleeved on the telescopic sleeve rod (4).

3. The cable tray expansion joint for preventing cable displacement according to claim 1, characterized in that: A bracket is provided above the support block (3), and the clamping blocks (6) on both sides above the support block (3) are respectively hinged to the bracket.

4. The cable tray expansion joint for preventing cable displacement according to claim 1, characterized in that: The lower end of the sliding rod (11) is slidably connected to a fixed rod (12), and the fixed rod (12) is also slidably connected to the sliding groove (13). A fixed groove (14) is provided inside the sliding groove (13), and the fixed rod (12) is inserted into the fixed groove (14).

5. The cable tray expansion joint for preventing cable displacement according to claim 1, characterized in that: A support rod (10) is fixedly mounted on the upper end of the sliding rod (11), a push rod (7) is fixedly mounted on one side of the support rod (10), and an end of the push rod (7) away from the support rod (10) is movably connected to one side of the clamping block (6).

6. The cable tray expansion joint for preventing cable displacement according to claim 5, characterized in that: A linkage rod (9) is hinged on the lower side of the push rod (7), and the linkage rod (9) is rotatably connected to the upper part of the cable bridge main body (2). The end of the linkage rod (9) away from the push rod (7) is hinged to the clamping rod (8).

7. The cable tray expansion joint for preventing cable displacement according to claim 6, characterized in that: Lifting slots (15) are provided on both sides of the cable bridge main body (2), and clamping slots (16) are provided on both sides of the telescopic joint main body (1), and the clamping rod (8) passes through the lifting slots (15) and is inserted into the clamping slots (16).

8. The cable tray expansion joint for preventing cable displacement according to claim 1, characterized in that: The transmission assembly comprises a rotating rod (18), the rotating rod (18) being rotatably connected to the interior of the front and rear sides of the base of the telescopic section body (1), and a pulley group (20) being sleeved between the two rotating rods (18), flat gears (19) being fixedly mounted at both ends of the rotating rod (18), and tooth grooves (17) being respectively formed on both sides of the bottom of the cable tray body (2), and the flat gears (19) being meshed with the tooth grooves (17).

9. The cable tray expansion joint for preventing cable displacement according to claim 8, characterized in that: Limiting grooves (21) are provided on the side walls of both sides of the telescopic joint body (1), and limiting blocks (22) are fixedly installed on the side walls of both sides of the cable bridge body (2), and the limiting blocks (22) are slidably connected inside the limiting grooves (21).

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