A cable tray with expansion joints

Abstract

The present invention relates to the technical field of cable trays, and discloses a cable tray with a telescopic joint, comprising two cable tray bodies, wherein the outer walls of the two cable tray bodies are slidably connected with a telescopic joint body, and the tops of the telescopic joint bodies are fixedly connected with three air pressure sleeves, and the inner walls of the three air pressure sleeves are each provided with an air pressure chamber 1, which is affected by the weight of the cable and drops down by the extrusion assembly, squeezing the gas in the air pressure chamber 1 and the air pressure chamber 2, so that the gas at the top and bottom of the piston rod is in a high-pressure state. When the cable at the telescopic joint body vibrates, the vibration generated will be transmitted to the support plate, and the compressibility of the high-pressure gas on both sides of the piston rod will absorb the vibration generated by the cable, reduce the vibration amplitude of the cable, and effectively prevent the flexible connection between the telescopic joint body and the cable tray body, which may easily cause the vibration amplitude of the cable at this part to increase, and make the cable at this part subject to a large pulling force, which may easily cause the cable to be damaged.

Description

Technical Field

[0001] The invention relates to the technical field of cable bridge equipment, in particular to a cable bridge with an expansion joint. 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. They are a metal or non-metallic structural system used to support, protect and standardize cable wiring. They are widely used in construction, industry, electricity, communications and other fields. Their core function is to centrally manage cables to avoid scattered laying, while providing mechanical protection and heat dissipation conditions. The cable tray expansion joint is a retractable and adjustable connector used for cable tray wiring across different distances or connecting different parts. It has the characteristic of adjustable length. The expansion joint is also used to avoid cable displacement, twisting or loss due to pulling, to ensure smooth cable flow.

[0003] Among them, the cable trays located in the pump room, such as the water pump room, air pump room, etc., will generate large vibrations when these equipment are in operation, which can easily cause the vibrations generated by the cable tray, and may cause the cables in the tray to vibrate. However, the connection between the expansion joint and the rigid tray is a flexible connection, and the cable swings under vibration, especially in the flexible area of ​​the expansion joint, which lacks constraints, may aggravate the vibration amplitude and easily cause cable damage. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a cable tray with a telescopic joint, comprising two cable tray bodies, wherein the outer walls of the two cable tray bodies are slidably connected with the telescopic joint bodies;

[0005] The bridge mechanism has a frame assembly slidingly provided at the bottom of the bridge mechanism, and a support assembly is installed on the inner wall of the bridge mechanism. The frame assembly is used to place cables;

[0006] A shock absorbing mechanism, which is installed on the inner wall of the bridge mechanism and is used to reduce vibration of the cable; and

[0007] A return mechanism is located at the inner wall of the bridge mechanism and is used to limit the distance of the frame assembly;

[0008] The top of the telescopic joint body is fixedly connected with three air pressure sleeves, the inner walls of the three air pressure sleeves are each provided with an air pressure cavity 1, and the inner wall of the telescopic joint body is slidably connected with a support plate;

[0009] Among them, the cables are placed and supported through the bridge mechanism, and then the vibration generated by the cables is absorbed by the shock-absorbing mechanism to reduce the vibration amplitude of the cables, effectively preventing the flexible connection between the expansion joint body and the cable bridge body, which may easily cause the vibration amplitude of the cables at this part to increase. Finally, the distance between the two cable bridge bodies is controlled by the return mechanism.

[0010] Preferably, the bridge mechanism includes:

[0011] A frame assembly, wherein the inner wall of the frame assembly is slidably arranged with the outer wall of the cable tray body, and is used for placing cables;

[0012] A support assembly, wherein the outer wall of the support assembly is slidably arranged with the inner wall of the telescopic joint body, and is used to support the cable;

[0013] Among them, after the operator completes the installation of the cable tray main body and the expansion joint main body, the cable is placed in the cable tray main body.

[0014] Preferably, the shock absorbing mechanism comprises:

[0015] An extrusion assembly is slidably arranged on the inner wall of the air pressure sleeve and is used for extruding gas;

[0016] A blocking component is fixedly arranged on the inner wall of the air pressure sleeve and is used to block the gas;

[0017] Among them, when placing cables in the main body of the cable tray, the cables will squeeze the extrusion component downward, causing the extrusion component to squeeze the gas, and the gas pressure will increase through the blocking component. Through the compressibility of the high-pressure gas, the vibration generated by the cable is absorbed, the vibration amplitude of the cable is reduced, and the pulling force on the cable at this part is reduced.

[0018] Preferably, the return mechanism includes:

[0019] A pushing component is slidingly arranged on the inner wall of the telescopic joint body and is used to push the cable tray body;

[0020] A clamping assembly, which is fixedly arranged on the top of the pushing assembly and is used to limit the position of the cable;

[0021] Among them, when the extrusion component descends, the pushing component will move laterally, so that the pushing component contacts the cable tray body, limiting the movement of the cable tray body to a long distance, effectively preventing the cable tray body from vibrating for a long time and sliding a long distance, resulting in a larger contact area between the cable tray body and the expansion joint body on one side and less on the other side, resulting in a change in the support center of gravity of the expansion joint body, causing the vibration energy to be concentrated on one side of the expansion joint body, affecting the vibration reduction of the expansion joint body on the cable, and then limiting the vibration direction of the cable through the locking component.

[0022] Preferably, the frame assembly includes a cover plate slidably connected to the top of the cable tray body;

[0023] The support assembly includes three push rods fixedly connected to the bottom of the support plate, and the outer walls of the three push rods are slidably connected to the inner walls of the three air pressure sleeves;

[0024] Among them, after the cable tray body and the expansion joint body are erected, by placing the cable on the inner wall of the cable tray body, the cable will fall on the top of the support plate, squeezing the support plate down.

[0025] Preferably, the extrusion assembly includes an air pressure chamber 2 opened on the inner wall of the air pressure sleeve, and the inner walls of the three air pressure chambers 1 are all slidably connected with piston blocks, and the tops of the three piston blocks are fixedly connected to the bottoms of the three push rods.

[0026] Preferably, the extrusion assembly further comprises a piston rod slidably connected to the second inner wall of the air pressure chamber, and the tops of the three piston rods are fixedly connected to the bottoms of the three piston blocks;

[0027] Among them, when the support plate descends, it will drive the push rod and the piston block to descend, causing the piston rod to descend. The descending piston block and the piston rod will squeeze the gas in the air pressure chamber one and the air pressure chamber two respectively, causing the pressure of the squeezed gas to increase, and the pressure of the squeezed gas in the air pressure chamber one continues to increase.

[0028] Preferably, the blocking assembly includes a fixing ring fixedly connected to the inner wall of the air pressure sleeve, the inner walls of the three fixing rings are slidably connected to the outer walls of the three piston rods, the inner walls of the three fixing rings are connected through the air supply pipes, and the inner walls of the three air supply pipes are slidably connected to the spring blocking rods;

[0029] Among them, the high-pressure gas in the air pressure chamber one will push the spring blocking rod down, separate from the inclined surface of the gas pipe, and leak out a gap. The high-pressure gas in the air pressure chamber one will enter the air pressure chamber two through the gap. Since the volume of the air pressure chamber one is greater than the volume of the air pressure chamber two, the air pressure at the top of the piston rod will also increase, so that the gas at the top and bottom of the piston rod are in a high-pressure state. When the cable tray body is subjected to the vibration generated by the pump room and the cable located at the main body of the expansion joint vibrates, the vibration generated will be transmitted to the support plate. The compressibility of the high-pressure gas on both sides of the piston rod absorbs the vibration generated by the cable, reduces the vibration amplitude of the cable, and effectively prevents the flexible connection between the expansion joint body and the cable tray body, which may easily cause the vibration amplitude of the cable at this part to increase, and make the cable at this part subject to a large pulling force, which may easily cause the cable to be damaged.

[0030] Preferably, the pushing assembly includes two sliding blocks slidably connected to the inner wall of the telescopic joint body, the inner walls of the two sliding blocks are each provided with three air collecting grooves, and the inner walls of the six air collecting grooves are each slidably connected to a spring return rod.

[0031] Preferably, the pushing assembly further comprises six connecting rods rotatably connected to the bottom of the support plate, the side walls of the six spring return rods are rotatably connected to the inner walls of the six connecting rods, and the inner walls of the two sliding blocks are each provided with three special-shaped grooves;

[0032] When the cable tray body is in a state of vibration and the cable is moved laterally, the spring return rod is released, and the cable tray body is pushed back to its original position, which effectively prevents the cable tray body from vibrating with a large amplitude and sliding laterally. Long-term vibration can easily cause the cable tray body to slide a long distance, resulting in a larger contact area between the cable tray body and the expansion joint body on one side and less on the other side, resulting in a change in the support center of gravity of the expansion joint body, resulting in vibration energy concentrated on one side of the expansion joint body, affecting the vibration reduction of the expansion joint body on the cable.

[0033] Preferably, the engaging assembly includes three fixing brackets fixedly connected to the top of the sliding block, and the inner walls of the six fixing brackets are all slidably connected to spring extrusion rods;

[0034] The bottoms of the six fixing frames are each provided with an arc-shaped block, the tops of the six arc-shaped blocks are rotatably connected to the bottoms of the six spring extrusion rods, the six spring extrusion rods are arranged in groups of three, and the tops of the two groups of spring extrusion rods are fixedly connected to a fixing plate;

[0035] Among them, when placing the cable, the cable will pass through the middle of the fixing frame, so that the outer wall of the cable will contact the arc-shaped block, and the arc-shaped block will rotate to fit the cable, as shown in the state G in the figure, squeezing the arc-shaped block to rise, so that the spring squeezing rod is squeezed, accumulating rebound force, and limiting the cable. Since multiple cables are usually placed in the cable tray body, when the vibration amplitudes of the multiple cables are different, when some of the multiple cables vibrate upward and the other part of the cables vibrate downward, since multiple spring squeezing rods are connected to the fixed plate, the upward vibrating cable compresses the corresponding spring squeezing rod, generating a downward rebound force, and the downward vibrating cable is separated from the arc-shaped block, causing the spring squeezing rod to move downward, which will increase the total rebound force, and the blocking force on the upward vibrating cable will increase, reducing the amplitude of the cable in a single direction, limiting its vibration amplitude, and effectively preventing the vibration amplitudes of multiple cables from being different, and the inertial force applied to the telescopic joint body is different, resulting in different vibration forces on the local area of ​​the telescopic joint body, which may cause the vibration amplitude of the telescopic joint body to increase.

[0036] The present invention has the following beneficial effects:

[0037] (1) When the present invention is used, after the operator has completed the erection of the cable tray main body and the telescopic joint main body, the cable is placed in the cable tray main body. The squeezing assembly is affected by the weight of the cable and descends, squeezing the gas in the air pressure chamber 1 and the air pressure chamber 2. As the gas pressure in the air pressure chamber 1 continues to rise, the high-pressure gas will push the blocking assembly into the air pressure chamber 2, so that the gas at the top and bottom of the piston rod are in a high-pressure state. When the cable at the telescopic joint main body vibrates, the vibration generated will be transmitted to the support plate. The compressibility of the high-pressure gas on both sides of the piston rod absorbs the vibration generated by the cable, reduces the vibration amplitude of the cable, and effectively prevents the flexible connection between the telescopic joint main body and the cable tray main body, which may easily cause the vibration amplitude of the cable at this part to increase, and make the cable at this part subject to a large pulling force, which may easily cause the cable to be damaged.

[0038] (2) When the support plate of the present invention descends, the sliding block is pushed into contact with the cable tray body by the pushing assembly, so that the sliding block is blocked and the spring return rod is squeezed. When the vibration amplitude of the cable tray body is large and it slides horizontally, it will squeeze the sliding block, allowing the spring return rod to accumulate rebound force. As the rebound force of the spring return rod increases, when the vibration amplitude of the cable tray body and the cable are both large and there is a short separation between the two due to the vibration, the spring return rod will push the cable tray body back to its position, effectively preventing the cable tray body from vibrating for a long time and sliding a long distance, resulting in a larger contact area between the cable tray body and the telescopic joint body on one side and a smaller contact area on the other side, resulting in a change in the support center of gravity of the telescopic joint body, resulting in the vibration energy being concentrated on one side of the telescopic joint body, affecting the vibration reduction of the telescopic joint body on the cable.

[0039] (3) In the present invention, after the sliding block is blocked, the spring return rod continues to move, which will squeeze the gas in the gas collecting groove and enter the left side of the spring return rod through the special-shaped groove. When the spring return rod pushes the cable tray body back to its original position, it will squeeze the gas on the left side of the spring return rod again. Since the special-shaped groove has multiple complex flow channels, it will slow down the flow speed of the gas and the return speed of the spring return rod, effectively preventing the spring return rod from releasing its rebound force too quickly, causing the spring return rod to vibrate, causing the support plate to vibrate, and affecting the vibration reduction effect of the high-pressure gas on both sides of the piston rod on the cable.

[0040] (4) When placing cables in the present invention, the cables will pass through the middle of the fixing frame, and the cables will be squeezed and limited by the locking assembly. Since multiple cables are usually placed in the cable tray body, when the vibration amplitudes of the multiple cables are different, when some cables vibrate upward and the other cables vibrate downward, the cables vibrating upward compress the corresponding spring extrusion rods, generating a downward rebound force, which increases the blocking force on the cables vibrating upward, reduces the amplitude of the cables in a single direction, limits their vibration amplitude, and effectively prevents the different vibration amplitudes of the multiple cables from causing differences in the inertial force applied to the telescopic joint body, resulting in different vibration forces on the local areas of the telescopic joint body, which may cause an increase in the vibration amplitude of the telescopic joint body. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0043] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0044] Figure 3 This is a schematic cross-sectional view of the main body of the cable tray of the present invention;

[0045] Figure 4 It is a schematic cross-sectional view of the air pressure sleeve of the present invention;

[0046] Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram;

[0047] Figure 6 For the present invention Figure 4 A magnified schematic diagram of middle B;

[0048] Figure 7 This is a schematic diagram of the arc-shaped clamping block working process of the present invention;

[0049] Figure 8 It is a left side schematic diagram of the cable tray main body of the present invention.

[0050] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0051] In the figure: 1. Bridge mechanism; 11. Frame assembly; 12. Support assembly; 111. Cable bridge body; 112. Telescopic joint body; 113. Cover plate; 121. Support plate; 122. Push rod; 2. Shock-absorbing mechanism; 21. Extrusion assembly; 22. Blocking assembly; 211. Air pressure sleeve; 212. Piston block; 213. Air pressure chamber 1; 214. Piston rod; 215. Air pressure chamber 2; 221. Fixed ring; 222. Air pipe; 223. Spring blocking rod; 3. Return mechanism; 31. Push assembly; 32. Engaging assembly; 311. Sliding block; 312. Spring return rod; 313. Connecting rod; 314. Air collecting groove; 315. Special-shaped groove; 321. Fixed frame; 322. Spring extrusion rod; 323. Arc-shaped clamping block; 324. Fixed plate. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0053] For example 1, please refer to Figure 1-Figure 4 The present invention is a cable tray with a telescopic joint, comprising two cable tray bodies 111, and a telescopic joint body 112 is slidably connected to the outer walls of the two cable tray bodies 111;

[0054] The bridge mechanism 1 has a frame assembly 11 slidingly provided at the bottom thereof, and a support assembly 12 is installed on the inner wall of the bridge mechanism 1. The frame assembly 11 is used to place cables;

[0055] A shock absorbing mechanism 2 is installed on the inner wall of the bridge mechanism 1 to reduce vibration of the cable; and

[0056] The return mechanism 3 is located at the inner wall of the bridge mechanism 1 and is used to limit the distance of the frame assembly 11;

[0057] The top of the telescopic joint body 112 is fixedly connected with three air pressure sleeves 211, and the inner walls of the three air pressure sleeves 211 are each provided with an air pressure cavity 213. The inner wall of the telescopic joint body 112 is slidably connected with a support plate 121.

[0058] Among them, the cable is placed and supported by the bridge mechanism 1, and then the vibration generated by the cable is absorbed by the shock-absorbing mechanism 2 to reduce the vibration amplitude of the cable, effectively preventing the flexible connection between the telescopic joint body 112 and the cable bridge body 111, which may easily cause the vibration amplitude of the cable at this position to increase. Finally, the distance between the two cable bridge bodies 111 is controlled by the return mechanism 3.

[0059] The bridge mechanism 1 comprises:

[0060] The frame assembly 11 is slidably arranged at the inner wall of the frame assembly 11 and the outer wall of the cable tray body 111 for placing cables;

[0061] The support assembly 12 is slidably arranged at the outer wall of the support assembly 12 and the inner wall of the telescopic joint body 112 to support the cable;

[0062] After the operator completes the installation of the cable tray body 111 and the expansion joint body 112 , the operator places the cables in the cable tray body 111 .

[0063] The shock absorbing mechanism 2 comprises:

[0064] An extrusion assembly 21 is slidably disposed on the inner wall of the air pressure sleeve 211 and is used to extrude gas;

[0065] The blocking component 22 is fixedly arranged on the inner wall of the air pressure sleeve 211 and is used to block the gas;

[0066] Among them, when the cable is placed in the cable tray body 111, the cable will squeeze the extrusion component 21 downward, causing the extrusion component 21 to squeeze the gas, and the gas pressure will increase through the blocking component 22. Through the compressibility of the high-pressure gas, the vibration generated by the cable is absorbed, the vibration amplitude of the cable is reduced, and the pulling force on the cable at this part is reduced.

[0067] The return mechanism 3 includes:

[0068] A pushing component 31 is slidably disposed on the inner wall of the telescopic joint body 112 and is used to push the cable tray body 111;

[0069] The clamping assembly 32 is fixedly arranged on the top of the pushing assembly 31 and is used to limit the position of the cable;

[0070] Among them, when the extrusion component 21 descends, the pushing component 31 will move laterally, so that the pushing component 31 contacts the cable tray body 111, limiting the movement of the cable tray body 111 to a longer distance, and effectively preventing the cable tray body 111 from vibrating for a long time and sliding a long distance, resulting in a larger contact area between the cable tray body 111 and the telescopic joint body 112 on one side and less on the other side, resulting in a change in the support center of gravity of the telescopic joint body 112, causing the vibration energy to be concentrated on one side of the telescopic joint body 112, affecting the vibration reduction of the telescopic joint body 112 on the cable, and then limiting the vibration direction of the cable through the locking component 32.

[0071] For example 2, please refer to Figures 1-8 , the present invention is a cable tray with an expansion joint. Based on Example 1, the frame assembly 11 includes a cover plate 113 slidably connected to the top of the cable tray body 111;

[0072] The support assembly 12 includes three push rods 122 fixedly connected to the bottom of the support plate 121. The outer walls of the three push rods 122 are slidably connected to the inner walls of the three air pressure sleeves 211.

[0073] After the cable tray body 111 and the expansion joint body 112 are installed, by placing the cable on the inner wall of the cable tray body 111, the cable will fall on the top of the support plate 121, squeezing the support plate 121 downward.

[0074] The extrusion assembly 21 includes an air pressure chamber 215 opened on the inner wall of the air pressure sleeve 211, and the inner walls of the three air pressure chambers 213 are all slidably connected to piston blocks 212, and the tops of the three piston blocks 212 are fixedly connected to the bottoms of the three push rods 122.

[0075] The extrusion assembly 21 further includes a piston rod 214 slidably connected to the inner wall of the second air pressure chamber 215 , and the tops of the three piston rods 214 are fixedly connected to the bottoms of the three piston blocks 212 ;

[0076] Among them, when the support plate 121 descends, it will drive the push rod 122 and the piston block 212 to descend, causing the piston rod 214 to descend. The piston block 212 and the piston rod 214 descend, which will squeeze the gas in the air pressure chamber 1 213 and the air pressure chamber 2 215 respectively, causing the pressure of the squeezed gas to increase, and the pressure of the squeezed gas in the air pressure chamber 1 213 continues to increase.

[0077] The blocking assembly 22 includes a fixing ring 221 fixedly connected to the inner wall of the air pressure sleeve 211. The inner walls of the three fixing rings 221 are slidably connected to the outer walls of the three piston rods 214. The inner walls of the three fixing rings 221 are all connected through the air supply pipes 222. The inner walls of the three air supply pipes 222 are all slidably connected to the spring blocking rods 223.

[0078] Among them, the high-pressure gas in the air pressure chamber 1 213 will push the spring blocking rod 223 down, separate from the inclined surface of the gas pipe 222, and leak out of the gap. The high-pressure gas in the air pressure chamber 1 213 will enter the air pressure chamber 2 215 through the gap. Since the volume of the air pressure chamber 1 213 is greater than the volume of the air pressure chamber 2 215, the air pressure at the top of the piston rod 214 will also increase, so that the gas at the top and bottom of the piston rod 214 are in a high-pressure state. When the cable tray body 111 is subjected to the vibration generated by the pump room and the cable at the telescopic joint body 112 vibrates, the vibration generated will be transmitted to the support plate 121. The compressibility of the high-pressure gas on both sides of the piston rod 214 absorbs the vibration generated by the cable, reduces the vibration amplitude of the cable, and effectively prevents the flexible connection between the telescopic joint body 112 and the cable tray body 111, which may easily cause the vibration amplitude of the cable at this part to increase, causing the cable to be subjected to a larger pulling force at this part, which may easily cause the cable to be damaged.

[0079] The pushing assembly 31 includes two sliding blocks 311 slidably connected to the inner wall of the telescopic joint body 112 . Three air collecting grooves 314 are respectively formed on the inner wall of the two sliding blocks 311 . The inner wall of each of the six air collecting grooves 314 is slidably connected to a spring return rod 312 .

[0080] The pushing assembly 31 further includes six connecting rods 313 rotatably connected to the bottom of the support plate 121. The side walls of the six spring return rods 312 are rotatably connected to the inner walls of the six connecting rods 313. The inner walls of the two sliding blocks 311 are each provided with three special-shaped grooves 315.

[0081] When the support plate 121 descends, it will also push the connecting rod 313 to rotate, push the spring return rod 312 to move, and let the spring return rod 312 push the sliding block 311 to move, so that the sliding block 311 contacts the cable tray body 111. Since the cable is laid on the top of the cable tray body 111 and is affected by the weight of the cable, the sliding block 311 will be blocked. The support plate 121 continues to descend, which will squeeze the spring return rod 312 and accumulate rebound force. When the vibration amplitude of the cable tray body 111 is large and it slides horizontally, it will squeeze the sliding block 311, allowing the spring return rod 312 to accumulate rebound force. As the spring return rod 312 rebounds, Enhanced, when the amplitude of the cable tray body 111 and the cable is large, and the two are briefly separated due to the influence of vibration, the rebound force of the spring return rod 312 will be released, pushing the cable tray body 111 back to its original position, effectively preventing the cable tray body 111 from vibrating with a large amplitude and sliding laterally. Long-term vibration can easily cause the cable tray body 111 to slide a long distance, resulting in a larger contact area between the cable tray body 111 and the telescopic joint body 112 on one side and less on the other side, resulting in a change in the support center of gravity of the telescopic joint body 112, resulting in the vibration energy being concentrated on one side of the telescopic joint body 112, affecting the vibration reduction of the telescopic joint body 112 on the cable.

[0082] The engaging assembly 32 includes three fixing brackets 321 fixedly connected to the top of the sliding block 311, and the inner walls of the six fixing brackets 321 are all slidably connected to spring extrusion rods 322;

[0083] The bottom of each of the six fixing frames 321 is provided with an arc-shaped block 323. The top of each of the six arc-shaped blocks 323 is rotatably connected to the bottom of each of the six spring extrusion rods 322. The six spring extrusion rods 322 are arranged in groups of three, and the tops of the two groups of spring extrusion rods 322 are fixedly connected to a fixing plate 324.

[0084] When placing the cable, the cable will pass through the middle of the fixing frame 321, so that the outer wall of the cable will contact the arc-shaped block 323, and the arc-shaped block 323 will rotate to fit the cable. Figure 7As shown in the state of middle G, the arc-shaped block 323 is squeezed to rise, so that the spring squeezing rod 322 is squeezed, accumulating rebound force and limiting the cable. Since multiple cables are usually placed in the cable tray main body 111, when the vibration amplitudes of the multiple cables are different, when some of the multiple cables vibrate upward and the other cables vibrate downward, since multiple spring squeezing rods 322 are connected to the fixing plate 324, the upward vibrating cable compresses the corresponding spring squeezing rod 322, generating a downward rebound force, and the downward vibrating cable is separated from the arc-shaped block 323, causing the spring squeezing rod 322 to move downward, which will enhance the total rebound force, increase the blocking force on the upward vibrating cable, reduce the amplitude of the cable in a single direction, limit its vibration amplitude, and effectively prevent the different vibration amplitudes of multiple cables. There are differences in the inertial forces applied to the telescopic joint main body 112, resulting in different vibration forces on local areas of the telescopic joint main body 112, which may cause the vibration amplitude of the telescopic joint main body 112 to increase.

[0085] There is no limit on the number of the above components, and relevant technicians in this field can freely set them according to actual needs, as long as the above components are installed in the corresponding component connection positions.

[0086] A specific application of this embodiment is: when the present invention is used, the operator completes the installation of the cable tray body 111 and the telescopic joint body 112, and then places the cable in the cable tray body 111. Since the top of the support plate 121 is higher than the bottom of the cable tray body 111, the cable will fall on the support plate 121, and the support plate 121 will fall under the influence of the weight of the cable, driving the push rod 122 and the piston block 212 to fall, allowing the piston rod 214 to fall. The piston block 212 and the piston rod 214 fall, which will squeeze the gas in the air pressure chamber 1 213 and the air pressure chamber 2 215 respectively, so that the pressure of the squeezed gas increases. As the pressure of the squeezed gas in the air pressure chamber 1 213 continues to increase, the high-pressure gas in the air pressure chamber 1 213 will push the spring blocking rod 223 to fall, separating from the inclined surface of the gas pipe 222. The high-pressure gas in the air pressure chamber 1 213 will enter the air pressure chamber 2 215 through the gap. Since the volume of the air pressure chamber 1 213 is greater than the volume of the air pressure chamber 2 215, the air pressure at the top of the piston rod 214 will also increase, so that the gas at the top and bottom of the piston rod 214 are in a high-pressure state. When the cable tray body 111 is subjected to the vibration generated by the pump room and the cable at the telescopic joint body 112 vibrates, the vibration generated will be transmitted to the support plate 121. The compressibility of the high-pressure gas on both sides of the piston rod 214 absorbs the vibration generated by the cable, reduces the vibration amplitude of the cable, and effectively prevents the flexible connection between the telescopic joint body 112 and the cable tray body 111, which may easily lead to an increase in the vibration amplitude of the cable at this position, causing the cable to be subjected to a large pulling force at this position, which may easily lead to cable damage.

[0087] Secondly, when the support plate 121 descends, it will also push the connecting rod 313 to rotate, pushing the spring return rod 312 to move, allowing the spring return rod 312 to push the sliding block 311 to move, so that the sliding block 311 contacts the cable tray body 111. Since the cable is laid on the top of the cable tray body 111 and is affected by the weight of the cable, the sliding block 311 will be blocked, and the support plate 121 will continue to descend, which will squeeze the spring return rod 312 and accumulate rebound force. When the vibration amplitude of the cable tray body 111 is large and it slides horizontally, it will squeeze the sliding block 311, allowing the spring return rod 312 to accumulate rebound force. As the spring return rod 312 rebounds, Enhanced, when the amplitude of the cable tray body 111 and the cable is large, and the two are temporarily separated due to the vibration, the rebound force of the spring return rod 312 will be released, pushing the cable tray body 111 back to its original position, effectively preventing the cable tray body 111 from vibrating with a large amplitude and sliding laterally. Long-term vibration can easily cause the cable tray body 111 to slide a long distance, resulting in a larger contact area between the cable tray body 111 and the telescopic joint body 112 on one side and less on the other side, resulting in a change in the supporting center of gravity of the telescopic joint body 112, causing the vibration energy to be concentrated on one side of the telescopic joint body 112, affecting the vibration reduction of the telescopic joint body 112 on the cable;

[0088] After the cam 311 is released, the spring 312 is released, and the air in the cam 312 is pushed back into the cam 314. When the cam 311 is released, the air in the cam 314 is pushed back into the cam 314. When the cam 311 is released, the air in the cam 312 is pushed back into the cam 314. When the cam 311 is released, the air in the cam 312 is pushed back into the cam 314.

[0089] Secondly, when placing the cable, the cable will pass through the middle of the fixing frame 321, so that the outer wall of the cable will contact the arc-shaped clamping block 323, and the arc-shaped clamping block 323 will rotate to fit the cable. Figure 7As shown in the state of middle G, the arc-shaped block 323 is squeezed to rise, so that the spring squeezing rod 322 is squeezed, accumulating rebound force and limiting the cable. Since multiple cables are usually placed in the cable tray main body 111, when the vibration amplitudes of the multiple cables are different, when some of the multiple cables vibrate upward and the other cables vibrate downward, since multiple spring squeezing rods 322 are connected to the fixing plate 324, the upward vibrating cable compresses the corresponding spring squeezing rod 322, generating a downward rebound force, and the downward vibrating cable is separated from the arc-shaped block 323, causing the spring squeezing rod 322 to move downward, which will enhance the total rebound force, increase the blocking force on the upward vibrating cable, reduce the amplitude of the cable in a single direction, limit its vibration amplitude, and effectively prevent the different vibration amplitudes of multiple cables. There are differences in the inertial forces applied to the telescopic joint main body 112, resulting in different vibration forces on local areas of the telescopic joint main body 112, which may cause the vibration amplitude of the telescopic joint main body 112 to increase.

[0090] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cable tray with a telescopic joint, comprising two cable tray bodies (111), wherein the outer walls of the two cable tray bodies (111) are slidably connected to a telescopic joint body (112), characterized in that: Also includes: A bridge mechanism (1), wherein a frame assembly (11) is slidably provided at the bottom of the bridge mechanism (1), a support assembly (12) is installed at the inner wall of the bridge mechanism (1), and the frame assembly (11) is used for placing cables; A shock absorbing mechanism (2), the shock absorbing mechanism (2) being installed on the inner wall of the bridge mechanism (1) and being used to reduce vibration of the cable; and A return mechanism (3), the return mechanism (3) being located at the inner wall of the bridge mechanism (1) and being used to limit the distance of the frame assembly (11); The top of the telescopic joint body (112) is fixedly connected to three air pressure sleeves (211), and the inner walls of the three air pressure sleeves (211) are each provided with an air pressure cavity (213). The inner wall of the telescopic joint body (112) is slidably connected to a support plate (121), and the bottom of the support plate (121) is fixedly connected to three push rods (122); The cables are placed and supported by a bridge mechanism (1), the vibration amplitude of the cables is reduced by a shock-absorbing mechanism (2), and the distance between the two cable bridge bodies (111) is finally controlled by a return mechanism (3); The shock absorbing mechanism (2) comprises: An extrusion assembly (21), the extrusion assembly (21) being slidably disposed on the inner wall of the air pressure sleeve (211) and being used for extruding gas; A blocking component (22), the blocking component (22) being fixedly arranged on the inner wall of the air pressure sleeve (211) and used for blocking gas; When a cable is placed in the cable tray body (111), the cable will squeeze the squeezing component (21) downward, causing the squeezing component (21) to squeeze the gas, and the gas pressure will increase through the blocking component (22), thereby absorbing the vibration force generated by the cable; The return mechanism (3) comprises: A pushing component (31), the pushing component (31) being slidably disposed on the inner wall of the telescopic joint body (112) and being used to push the cable tray body (111); A snap-fit ​​assembly (32), the snap-fit ​​assembly (32) being fixedly disposed on the top of the pushing assembly (31) and used to limit the position of the cable; When the extrusion component (21) descends, the pushing component (31) moves laterally, causing the pushing component (31) to contact the cable tray body (111), thereby limiting the movement of the cable tray body (111) to a greater distance, and then limiting the vibration direction of the cable through the locking component (32); The extrusion assembly (21) includes a second air pressure chamber (215) provided on the inner wall of the air pressure sleeve (211), the inner walls of the three first air pressure chambers (213) are all slidably connected to piston blocks (212), and the tops of the three piston blocks (212) are all fixedly connected to the bottoms of the three push rods (122); The extrusion assembly (21) further includes a piston rod (214) slidably connected to the inner wall of the second air pressure chamber (215), and the tops of the three piston rods (214) are fixedly connected to the bottoms of the three piston blocks (212); When the support plate (121) descends, the push rod (122) is driven to squeeze the piston block (212) downward, causing the piston rod (214) to descend, squeezing the gas in the air pressure chamber 1 (213) and the air pressure chamber 2 (215) respectively. The gas in the air pressure chamber 1 (213) enters the air pressure chamber 2 (215) through the blocking component (22), thereby increasing the gas pressure in the air pressure chamber 2 (215).

2. A cable tray with an expansion joint according to claim 1, characterized in that: The bridge mechanism (1) comprises: A frame assembly (11), wherein the inner wall of the frame assembly (11) is slidably arranged with the outer wall of the cable tray body (111) for placing cables; A support assembly (12) is provided, wherein the outer wall of the support assembly (12) and the inner wall of the telescopic joint body (112) are slidably arranged to support the cable.

3. The cable tray with expansion joint according to claim 2, characterized in that: The frame assembly (11) includes a cover plate (113) slidably connected to the top of the cable tray body (111), and the outer walls of the three push rods (122) are slidably connected to the inner walls of the three air pressure sleeves (211); After the cable tray body (111) and the expansion joint body (112) are erected, the cables are placed on the inner wall of the cable tray body (111), so that the cables fall on the top of the support plate (121), pressing the support plate (121) downward.

4. The cable tray with expansion joint according to claim 3, characterized in that: The blocking assembly (22) includes a fixing ring (221) fixedly connected to the inner wall of the air pressure sleeve (211), the inner walls of the three fixing rings (221) are slidably connected to the outer walls of the three piston rods (214), the inner walls of the three fixing rings (221) are connected through air pipes (222), and the inner walls of the three air pipes (222) are slidably connected to spring blocking rods (223); As the piston block (212) continues to move, the gas pressure inside the air pressure chamber (213) increases, and the high-pressure gas pushes the spring blocking rod (223) into the air pressure chamber (215), so that both sides of the piston rod (214) are under high pressure.

5. The cable tray with expansion joint according to claim 4, characterized in that: The pushing assembly (31) comprises two sliding blocks (311) slidably connected to the inner wall of the telescopic joint body (112), three air collecting grooves (314) are respectively provided on the inner walls of the two sliding blocks (311), and spring return rods (312) are slidably connected to the inner walls of the six air collecting grooves (314).

6. The cable tray with expansion joint according to claim 5, characterized in that: The pushing assembly (31) further includes six connecting rods (313) rotatably connected to the bottom of the support plate (121), the side walls of the six spring return rods (312) are rotatably connected to the inner walls of the six connecting rods (313), and the inner walls of the two sliding blocks (311) are each provided with three special-shaped grooves (315); When the support plate (121) descends, it also pushes the connecting rod (313) to rotate, pushing the spring return rod (312) and the sliding block (311) to move, allowing the sliding block (311) to contact the side wall of the cable tray body (111), so that the spring return rod (312) is compressed.

7. The cable tray with expansion joint according to claim 6, characterized in that: The engaging assembly (32) comprises three fixing frames (321) fixedly connected to the top of the sliding block (311), and the inner walls of the six fixing frames (321) are all slidably connected to spring extrusion rods (322); The bottoms of the six fixing frames (321) are each provided with an arc-shaped clamping block (323), the tops of the six arc-shaped clamping blocks (323) are rotatably connected to the bottoms of the six spring extrusion rods (322), the six spring extrusion rods (322) are arranged in groups of three, and the tops of the two groups of spring extrusion rods (322) are each fixedly connected to a fixing plate (324); When placing a cable in the cable tray body (111), the cable is passed through the sliding block (311) and contacts the arc-shaped clamping block (323), so that the arc-shaped clamping block (323) fits against the outer wall of the cable to limit the position of the cable.

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