A power communication transmission cable bridge

Abstract

The utility model relates to transmission cable bridge technical field discloses a kind of electric power communication transmission cable bridge, including first bridge, second bridge and connecting structure;The first bridge and second bridge are tubular structure;The one end of first bridge is provided with connecting pipe, and connecting pipe can be inserted into the inner chamber of second bridge;The connecting structure includes fixed block, first spring, sliding block, H-shaped plate, threaded shaft and engagement shaft;The side of fixed block is fixedly connected with connecting pipe, and the other side of fixed block is connected with the side of sliding block by first spring, and the other side of sliding block is fixedly connected with H-shaped plate;The edge of H-shaped plate is provided with engagement shaft extending to connecting pipe, and the four corners of H-shaped plate are provided with threaded shaft extending to connecting pipe;The one end of second bridge is provided with sliding block groove matched with sliding block, engagement shaft hole matched with engagement shaft, and threaded hole matched with threaded shaft.The utility model aims at meeting the extension demand of traditional cable bridge in limited space.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission cable bridge technical field, especially a kind of electric power communication transmission cable bridge. BACKGROUND

[0002] In modern society, as the key component of infrastructure, power and communication are deeply integrated into various aspects of production and life, from the high-rise buildings in bustling cities to the village base stations in remote areas, from large industrial production workshops to convenient smart home systems, the stability of power supply and the smoothness of communication signals are the cornerstone of ensuring the normal operation of society, promoting economic development and improving the quality of life, and the electric power communication transmission cable bridge, as an important carrier of power and communication cables, plays an irreplaceable supporting and protective role in this huge and complex network system, and the electric power communication transmission cable bridge is mainly used to stably suspend and lay various power and communication cables, to ensure that they can safely and efficiently transmit power and communication signals in different environments inside buildings, outdoor spaces and underground pipe corridors, just like the skeletal system of the human body, which provides reliable support structure for cables, and also like a strong armor, effectively resisting the damage of external factors to the cable, thereby prolonging the service life of the cable, reducing power outages and communication interruptions caused by line faults, and ensuring the continuous and stable operation of businesses in various fields.

[0003] The electric power communication transmission cable bridge on the market at present is mainly composed of support structure and support piece connector, the installation process of traditional bridge is relatively cumbersome, relying on on-site cutting and welding operation, not only consumes a lot of time and manpower, but also requires high professional skills of construction personnel, at the same time, due to the inflexible design of bridge structure, when internal cable fails during later maintenance and repair, a lot of time and effort is often needed to move the surrounding cables to access the fault part, and the repair efficiency is very low, and the current new prefabricated bridge can be produced in advance before installation and quickly installed, solving the welding operation during traditional on-site installation, but the traditional cable bridge often does not fully consider the flexible extension requirement in limited space during design, its structure is relatively fixed, lacks adjustable and expandable design elements, when free extension cannot be achieved, construction personnel can only temporarily modify the bridge through on-site cutting and welding, which is not only inefficient, but also easily damages the overall structural strength and corrosion resistance of the bridge, and the connection mode of traditional bridge is prone to looseness and poor contact during frequent adjustment and expansion, affecting the safe transmission of cable. UTILITY MODEL CONTENTS

[0004] In order to solve the existing problems, the utility model provides a kind of electric power communication transmission cable bridge, to meet the extension demand of traditional cable bridge in limited space, its structure form is relatively fixed, cannot freely extend, and the problem of still needing on-site cutting in temporary modification, simultaneously solve the low efficiency of temporary modification, the overall structural strength and corrosion resistance of bridge are easily damaged, and the problem of loose, poor contact is easily appeared.

[0005] In order to achieve the above object, the utility model provides the following technical scheme.

[0006] A kind of electric power communication transmission cable bridge, including first bridge, second bridge and connecting structure;The first bridge and second bridge are tubular structure;The one end of first bridge is provided with connecting pipe, connecting pipe can be inserted into the inner chamber of second bridge;The connecting structure includes fixed block, first spring, sliding block, H-shaped plate, threaded shaft and engagement shaft;The side of fixed block is fixedly connected with connecting pipe, the other side of fixed block is connected with the side of sliding block by first spring, the other side of sliding block is fixedly connected with H-shaped plate;The edge of H-shaped plate is provided with engagement shaft extending to connecting pipe, the four corners of H-shaped plate are provided with threaded shaft extending to connecting pipe;The one end of second bridge is provided with sliding block groove matched with sliding block, engagement shaft hole matched with engagement shaft and threaded hole matched with threaded shaft.

[0007] As a further improvement of the utility model, it further includes third bridge and engagement structure;The one end of third bridge is provided with sliding pipe, and the sliding pipe can be inserted into the inner chamber of first bridge;The engagement structure includes first engagement plate, connecting shaft and second engagement plate;One side of first engagement plate is fixedly connected with sliding pipe, and connecting shaft extends out from the center of the other side of first engagement plate;The connecting shaft is slidably connected with second engagement plate;The connecting shaft slot is arranged on the first bridge along the length direction;The engagement slot is arranged on the first bridge along the length direction.

[0008] As a further improvement of the utility model, it further includes oval plate, rotating shaft, adjusting plate and second spring;The first engagement plate and the second engagement plate are connected by second spring;The one end of connecting shaft, away from sliding pipe, is connected with oval plate through vertically arranged rotating shaft, one side of oval plate is fixedly connected with adjusting plate, and the other side of oval plate is in contact with one side of second engagement plate.

[0009] As a further improvement of the utility model, the two sides of second engagement plate extend to sliding pipe and are provided with engagement flange.

[0010] As a further improvement of the utility model, the two sides of first engagement plate extend to second engagement plate and are provided with engagement concave, and the engagement concave is matched with engagement flange.

[0011] As a further improvement of the utility model, the first bridge is provided with a first mounting hole, a protection strip, a protection plate, a handle, a circular protection pad and a square protection pad.

[0012] As a further improvement of the utility model, the second bridge is provided with a second mounting hole, a protection plate and a protection strip.

[0013] As a further improvement of the utility model, the third bridge is provided with a third mounting hole, a soft strip and a soft pad.

[0014] As a further improvement of the utility model, the contact surface of the elliptical plate and the second clamping plate is provided with anti-skid lines.

[0015] As a further improvement of the utility model, the handle is provided with an anti-skid sleeve.

[0016] The utility model has the following beneficial effects:

[0017] By setting the first bridge, the second bridge and the unique connecting structure, the convenient connection between the bridges is realized.

[0018] Preferably, the third bridge and the clamping structure are added, which further enriches the connection mode of the bridge.

[0019] Preferably, the second spring, the elliptical plate, the rotating shaft and the adjusting plate are arranged to provide the adjusting function for the clamping structure.

[0020] Preferably, the second clamping plate extends clamping flanges on both sides to the sliding pipe, enhancing the stability of the clamping structure; the clamping flanges can better cooperate with the corresponding structure on the first bridge to prevent the third bridge from shaking or moving in the first bridge, ensuring the overall strength and stability of the bridge after connection, and facilitating the safe operation of the power communication transmission cable.

[0021] Preferably, the first clamping plate extends clamping concave flanges on both sides to the second clamping plate, and cooperates with the clamping flanges, further optimizing the clamping structure. This cooperation makes the connection between the first clamping plate and the second clamping plate more compact and stable, improves the carrying capacity of the clamping structure, effectively prevents the bridge connection part from loosening or falling off, and ensures the reliability of the power communication transmission cable bridge system.

[0022] Preferably, the first mounting hole is provided on the first bridge to facilitate the installation and fixation of the bridge; the protection strip, the protection plate, the circular protection pad and the square protection pad can protect the bridge and the cables inside it from damage caused by external impact, wear and tear, etc., and can also reduce the friction between the cables and the bridge, prolonging the service life of the cables and the bridge. The handle is provided to facilitate the construction personnel to carry and install the bridge, improving the construction efficiency.

[0023] Preferably, the second mounting hole is provided on the second bridge to facilitate the installation and fixation of the bridge; the protection plate and the protection strip are provided to protect the bridge from damage during installation and use, ensuring the normal use of the bridge and the safety of the power communication transmission cable.

[0024] Preferably, the third mounting hole is provided on the third bridge to facilitate the installation and fixation of the third bridge; the soft strip and the soft pad are provided to buffer and protect the third bridge and the cables inside it, reduce the influence of external factors on the bridge and the cables, improve the stability and reliability of the bridge system, and prolong the service life of the cables and the bridge.

[0025] Preferably, the rough texture helps to increase the friction force, avoid the self-rotation of the elliptical plate on the second clamping plate after vibration, release the tension of the second spring, and cause the second clamping plate to exit and fall off from the clamping groove.

[0026] Optionally, the handle is provided with an anti-slip sleeve to increase the friction force when the construction personnel hold the handle, prevent the bridge from falling or being installed inaccurately during the carrying and installation of the bridge, improve the safety and accuracy of the construction, and also facilitate the operation of the construction personnel. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings described herein are for illustrative purposes only and are in no way intended to limit the scope of the present disclosure. In addition, the shapes and proportions of the components in the drawings are only illustrative and are used to help understand the present disclosure, and are not specific limitations on the shapes and proportions of the components. In the drawings:

[0028] Figure 1 A side view of an electric power communication transmission cable bridge for an embodiment;

[0029] Figure 2 A top view of an electric power communication transmission cable bridge for an embodiment;

[0030] Figure 3 An enlarged view of a connection structure of an electric power communication transmission cable bridge for an embodiment;

[0031] Figure 4 A connection structure diagram of an electric power communication transmission cable bridge for an embodiment;

[0032] Figure 5 A clamping structure diagram of an electric power communication transmission cable bridge for an embodiment;

[0033] Figure 6 An enlarged view of a clamping structure of an electric power communication transmission cable bridge for an embodiment;

[0034] 1, first bridge; 2, connection structure; 201, connecting pipe; 202, second bridge; 203, fixed block; 204, first spring; 205, sliding block; 206, H-shaped plate; 207, threaded shaft; 208, clamping shaft; 3, clamping groove; 4, sliding pipe; 5, third bridge; 6, first clamping plate; 7, connecting shaft; 8, second clamping plate; 9, oval plate; 10, rotating shaft; 11, adjusting plate; 12, protection plate; 13, protection strip; 14, soft pad; 15, soft strip; 16, protection plate; 17, round protection pad; 18, protection strip; 19, square protection pad; 20, handle; 21, anti-skid sleeve; 22, first mounting hole; 23, second mounting hole; 24, third mounting hole; 25, second spring. DETAILED DESCRIPTION

[0035] In order to enable persons skilled in the art to better understand the technical solutions in the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by persons skilled in the art without creative labor should fall within the scope of protection of the present disclosure.

[0036] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, it is to be understood that when an element such as a layer, region or substrate is referred to as being "connected to" or "coupled to" another element, it can be directly connected to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Relative terms such as "lower," "upper," "horizontal," "vertical," "above," "below," "up," "down," "top," "bottom," "left," "right," and the like as can be used herein, are used for the convenience of the reader in relation to the exemplary embodiments illustrated and described herein and do not necessarily limit the position of the elements being described to the position of the element being described.

[0037] 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 application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety for the teachings relevant to the sentence and / or paragraph in which the reference is presented.

[0038] Embodiment 1

[0039] As shown in Figure 1 and Figure 2 A power communication transmission cable bridge, comprising a first bridge 1, a second bridge 202, a connecting structure 2, a third bridge 5 and a clamping structure; the first bridge 1 and the second bridge 202 are both tubular structures; one end of the first bridge 1 is provided with a connecting pipe 201, which can extend into the inner cavity of the second bridge 202; one end of the third bridge 5 is provided with a sliding pipe 4, which can extend into the inner cavity of the first bridge 1.

[0040] Specifically, as shown in Figure 3 the connecting structure 2 comprises a fixed block 203, a first spring 204, a sliding block 205, an H-shaped plate 206, a threaded shaft 207 and a clamping shaft 208; one side of the fixed block 203 is fixedly connected with the connecting pipe 201, the other side of the fixed block 203 is connected with one side of the sliding block 205 through the first spring 204, and the other side of the sliding block 205 is fixedly connected with the H-shaped plate 206; the edge of the H-shaped plate 206 is provided with the clamping shaft 208 extending towards the connecting pipe 201, and the four corners of the H-shaped plate 206 are provided with the threaded shaft 207 extending towards the connecting pipe 201; one end of the second bridge 202 is provided with a sliding block groove matched with the sliding block 205, a clamping shaft hole matched with the clamping shaft 208 and a threaded hole matched with the threaded shaft 207. The unique connecting structure 2 realizes the convenient connection between the bridges.

[0041] As shown in Figure 4As shown, the sliding block 205 cooperates with the sliding block groove to perform basic alignment and limit height direction displacement; the clamping shaft 208 cooperates with the clamping shaft hole to perform multi-point anchoring; the threaded shaft 207 cooperates with the threaded hole to apply external tension force against the first spring 204, thereby avoiding disengagement of the connecting structure 2; the overall connecting structure 2 makes the bridge connection firm and relatively simple to install and disassemble, improves construction efficiency, and ensures the stability and reliability of the bridge connection after the bridge connection, which is conducive to the stable laying of the power communication transmission cable.

[0042] Specifically, as shown in Figure 5 and Figure 6 , the clamping structure includes a first clamping plate 6, a connecting shaft 7, and a second clamping plate 8; one side of the first clamping plate 6 is fixedly connected with the sliding tube 4, and the other side of the first clamping plate 6 has a connecting shaft 7 extending outward from the center; the connecting shaft 7 is slidably connected with the second clamping plate 8; the first bridge 1 has a connecting shaft 7 groove arranged along the length direction; and the first bridge 1 has a clamping groove 3 arranged along the length direction and spaced apart. The clamping structure realizes flexible and stable connection; the second clamping plate 8 slides along the connecting shaft 7 to adjust the distance between the first clamping plate 6 and the second clamping plate 8, so as to extend into and withdraw from the clamping groove 3 on the first bridge 1; the connecting shaft 7 is used for alignment splicing between two bridges; and the clamping structure enables the bridge to be more flexibly combined and expanded according to actual needs, meets the laying requirements of the power communication transmission cable in different scenarios, and improves the universality and adaptability of the bridge system.

[0043] Optionally, as shown in Figure 6 , the second clamping plate 8 has clamping flanges extending from both sides to the sliding tube 4. The first clamping plate 6 has clamping recesses extending from both sides to the second clamping plate 8, and the clamping recesses cooperate with the clamping flanges. The first clamping plate 6 has clamping recesses extending from both sides to the second clamping plate 8, and the clamping recesses cooperate with the clamping flanges, which further optimizes the clamping structure. This cooperation makes the connection between the first clamping plate 6 and the second clamping plate 8 more compact and stable, improves the carrying capacity of the clamping structure, effectively prevents the bridge connection part from loosening or falling off, and ensures the reliability of the power communication transmission cable bridge system.

[0044] Embodiment 2

[0045] The difference between this embodiment and embodiment 1 is:

[0046] 1) further comprising an elliptical plate 9, a rotating shaft 10, an adjusting plate 11, and a second spring 25; the first clamping plate 6 and the second clamping plate 8 are connected by the second spring 25; one end of the connecting shaft 7 away from the sliding tube 4 is connected with the elliptical plate 9 through the vertically arranged rotating shaft 10, one side of the elliptical plate 9 is fixedly connected with the adjusting plate 11, and the other side of the elliptical plate 9 is in contact with one side of the second clamping plate 8.

[0047] 2) The contact surface of the elliptical plate 9 and the second clamping plate 8 is provided with anti-skid lines.

[0048] The arrangement of the second spring 25, the elliptical plate 9, the rotating shaft 10 and the adjusting plate 11 provides the clamping structure with an adjusting function. Alternatively, the second spring 25 can be arranged on one side of the connecting shaft or sleeved on the connecting shaft. The distance between the first clamping plate 6 and the second clamping plate 8 is maintained by the outward tension of the second spring 25; the second clamping plate 8 can be pressed and retracted along the connecting shaft 7 by rotating the elliptical plate 9 around the rotating shaft 10; the adjusting plate 11 facilitates manual operation of the rotating position of the elliptical plate 9, thereby conveniently realizing the connection and disassembly operation between the third bridge 5 and the first bridge 1, increasing the flexibility and operability of the connection, and facilitating on-site installation and maintenance by construction personnel.

[0049] The rough texture helps to increase the friction force, avoid the elliptical plate 9 from rotating on the second clamping plate 8 after vibration, release the outward tension of the second spring 25, and cause the second clamping plate 8 to fall out of the clamping groove 3.

[0050] Embodiment 3

[0051] The difference between this embodiment and embodiment 1 is that:

[0052] 1) The first bridge 1 is provided with a first mounting hole 22, a protection strip 18, a protection plate 16, a handle 20, a circular protection pad 17 and a square protection pad 19.

[0053] 2) The second bridge 202 is provided with a second mounting hole 23, a protection plate 12 and a protection strip 13.

[0054] 3) The third bridge 5 is provided with a third mounting hole 24, a soft strip 15 and a soft pad 14.

[0055] 4) The handle 20 is provided with an anti-skid sleeve 21.

[0056] The top of the second bridge 202 is fixedly connected with protection plates 12 on the front and rear sides, and the outer walls of the second bridge 202 are fixedly connected with protection strips 13 near the edges on the front and rear sides. The top of the first bridge 1 is fixedly connected with a handle 20 near the left side, and the outer wall of the handle 20 is fixedly connected with an anti-skid sleeve 21. The top of the first bridge 1 is fixedly connected with circular protection pads 17 at four corners. As for the first bridge 1, the top thereof is fixedly connected with a handle 20 near the left side, which provides a gripping point for users when carrying the first bridge 1. In order to improve the comfort and safety during use, the outer wall of the handle 20 is fixedly connected with an anti-skid sleeve 21 to ensure good gripping force in a humid or greasy environment. The outer wall of the first bridge 1 is fixedly connected with square protection pads 19 at four corners on the front and rear sides.

[0057] Specifically, the top of the second bridge 202 is fixedly connected with protective plates 12 on the front and rear sides, which provide additional protection to prevent damage to the second bridge 202 during transportation or use, and the outer walls of the second bridge 202 are fixedly connected with protective strips 13 near the edges on the front and rear sides, which also protect the outer walls of the second bridge 202 to avoid accidental injury or damage due to sharp edges during transportation or use, the top of the first bridge 1 is fixedly connected with corner round protective pads 17 at four corners, which not only enhance the stability of the structure, but also prevent the corner parts of the first bridge 1 from being impacted or worn during transportation, and finally, the outer walls of the first bridge 1 are fixedly connected with square protective pads 19 at four corners on the front and rear sides, which can absorb impact force and reduce damage to the first bridge 1 during transportation or use.

[0058] Please refer to Figure 1 and Figure 3 , the outer walls of the first bridge 1 are fixedly connected with protective plates 16 near the edges on the front and rear sides, the outer walls of the first bridge 1 are fixedly connected with protective strips 18 on the top front and rear sides, the outer walls of the third bridge 5 are fixedly connected with soft strips 15 on the top left and right sides, the outer walls of the third bridge 5 are fixedly connected with soft pads 14 at four corners on the front and rear sides, and the outer walls of the first bridge 1 and the third bridge 5 are provided with third mounting holes 24 on the front and rear sides of the middle part, in addition, the outer walls of the third bridge 5 are fixedly connected with soft pads 14 at four corners on the front and rear sides, which not only provide cushioning, but also protect the structural integrity of the third bridge 5 to a certain extent, and the third mounting holes 24 are used for mounting the first bridge 1 and the third bridge 5.

[0059] Specifically, the outer walls of the first bridge 1 are fixedly connected with protective plates 16 near the edges on the front and rear sides, which can effectively prevent damage to the outer walls of the first bridge 1 during transportation or use, and the outer walls of the first bridge 1 are also fixedly connected with protective strips 18 on the top front and rear sides, which can provide additional protection to prevent the first bridge 1 from being impacted or scratched on the top, for the third bridge 5, the outer walls of the third bridge 5 are fixedly connected with soft strips 15 on the top left and right sides, and finally, the outer walls of the first bridge 1 and the third bridge 5 are provided with third mounting holes 24 on the front and rear sides of the middle part, which provide convenience for the installation of the first bridge 1 and the third bridge 5, and the third mounting holes 24 enable the first bridge 1 and the third bridge 5 to be flexibly installed at different positions to meet different use requirements.

[0060] The specific working principle of the utility model is as follows:

[0061] The first bridge 1 is provided with a clamping groove 3 on the right side of the top, and a sliding pipe 4 slides on the right side of the inner wall of the first bridge 1, a third bridge 5 is fixed on the right side of the outer wall of the sliding pipe 4, a first clamping plate 6 is fixed on the left side of the top of the sliding pipe 4, the adjusting plate 11 is actuated to drive the rotating shaft 10 and the elliptical plate 9, so that the elliptical plate 9 extrudes the second clamping plate 8, so as to overcome the outward tension of the second spring 25, so that the second clamping plate 8 can be clamped on the inner wall of the first clamping plate 6, and the connecting shaft 7 slides on the right side of the top of the first bridge 1, and the second clamping plate 8 and the first clamping plate 6 are clamped in the corresponding clamping groove 3 at the bottom of the first bridge 1 by the adjusting plate 11, so as to realize the sliding extension of the third bridge 5, which is simple to operate and meets the needs of different lengths during use.

[0062] The first bridge 1 is provided with a clamping groove 3 on the right side of the top, and a sliding pipe 4 slides on the right side of the inner wall of the first bridge 1, a third bridge 5 is fixed on the right side of the outer wall of the sliding pipe 4, a first clamping plate 6 is fixed on the left side of the top of the sliding pipe 4, the adjusting plate 11 is actuated to drive the rotating shaft 10 and the elliptical plate 9, so that the elliptical plate 9 extrudes the second clamping plate 8, so as to overcome the outward tension of the second spring 25, so that the second clamping plate 8 can be clamped on the inner wall of the first clamping plate 6, and the connecting shaft 7 slides on the right side of the top of the first bridge 1, and the second clamping plate 8 and the first clamping plate 6 are clamped in the corresponding clamping groove 3 at the bottom of the first bridge 1 by the adjusting plate 11, so as to realize the sliding extension of the third bridge 5, which is simple to operate and meets the needs of different lengths during use.

[0063] The above embodiment is only one of the embodiments capable of realizing the technical scheme of the present application, and the scope of the present application is not limited to the embodiment, but also includes any changes, substitutions and other embodiments easily thought by those skilled in the art within the technical scope disclosed by the present application. Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A power communication transmission cable tray, characterized in that, The system includes a first cable tray, a second cable tray, and a connecting structure. Both the first and second cable trays are tubular structures. One end of the first cable tray is provided with a connecting pipe that can extend into the inner cavity of the second cable tray. The connecting structure includes a fixing block, a first spring, a sliding block, an H-shaped plate, a threaded shaft, and a locking shaft. One side of the fixing block is fixedly connected to the connecting pipe, and the other side of the fixing block is connected to one side of the sliding block via the first spring. The other side of the sliding block is fixedly connected to the H-shaped plate. The edge of the H-shaped plate is provided with a locking shaft extending towards the connecting pipe, and the four corners of the H-shaped plate are provided with threaded shafts extending towards the connecting pipe. One end of the second cable tray is provided with a slider groove that mates with the sliding block, a locking shaft hole that mates with the locking shaft, and a threaded hole that mates with the threaded shaft.

2. The power communication transmission cable tray according to claim 1, characterized in that, It also includes a third cable tray and a locking structure; one end of the third cable tray is provided with a sliding tube, which can extend into the inner cavity of the first cable tray; the locking structure includes a first locking plate, a connecting shaft, and a second locking plate; one side of the first locking plate is fixedly connected to the sliding tube, and the connecting shaft extends outward from the center of the other side of the first locking plate; the connecting shaft is slidably connected to the second locking plate; a connecting shaft groove is provided on the first cable tray along its length direction; and locking grooves are arranged at intervals on the first cable tray along its length direction.

3. The power communication transmission cable tray according to claim 2, characterized in that, It also includes an elliptical plate, a rotating shaft, an adjusting plate, and a second spring; the first locking plate and the second locking plate are connected by the second spring; the end of the connecting shaft away from the sliding tube is connected to the elliptical plate through a vertically set rotating shaft, one side of the elliptical plate is fixedly connected to the adjusting plate, and the other side of the elliptical plate is in contact with one side of the second locking plate.

4. A power communication transmission cable tray according to claim 2, characterized in that, The two sides of the second locking plate extend locking flanges toward the sliding tube.

5. A power communication transmission cable tray according to claim 2, characterized in that, The first locking plate has locking recesses extending from both sides toward the second locking plate, and the locking recesses engage with the locking protrusions.

6. A power communication transmission cable tray according to claim 2, characterized in that, The first cable tray is provided with a first mounting hole, a protective strip, a protective plate, a handle, a circular protective pad, and a square protective pad.

7. A power communication transmission cable tray according to claim 2, characterized in that, The second cable tray is provided with a second mounting hole, a protective plate, and a protective strip.

8. A power communication transmission cable tray according to claim 2, characterized in that, The third cable tray is provided with a third mounting hole, a soft strip, and a soft pad.

9. A power communication transmission cable tray according to claim 3, characterized in that, The contact surface between the elliptical plate and the second locking plate is provided with anti-slip texture.

10. A power communication transmission cable tray according to claim 6, characterized in that, The handle is equipped with an anti-slip sleeve.

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