A cable bridge

Abstract

The present invention discloses a cable bridge, which relates to the technical field of cable bridges, and comprises a first outer shell, a second outer shell is movably connected to one side of the first outer shell, a pressing device is installed inside the first outer shell and the second outer shell, a plurality of first slide rails are movably connected to the inner wall of one side of the first outer shell, a first inner shell is fixedly connected to one side of the first slide rail by bolts, a plurality of second slide rails are movably connected to the inner wall of one side of the second outer shell, a second inner shell is fixedly connected to one side of the second slide rail by bolts, an adjusting device is installed inside the first inner shell and the second inner shell, and a conveying device is installed on one side of the first inner shell and the second inner shell. The cable bridge provided by the present invention has the function of changing its own shape, which is convenient for the installation of the cable bridge at the corner of the building and has the function of adjusting the size, and there is no need to cut the cable bridge.

Description

Technical Field

[0001] The invention relates to the technical field of cable bridges, and in particular to a cable bridge. Background Art

[0002] Cable trays are divided into trough type, tray type, ladder type, grid type and other structures, and are composed of brackets, brackets and installation accessories. The cable trays in buildings can be erected independently or laid on various buildings and pipe gallery brackets. They should have the characteristics of simple structure, beautiful shape, flexible configuration and convenient maintenance. All parts must be galvanized. For cable trays installed in the open air outside buildings, near the seaside or in corrosion areas, the material must have the physical properties of anti-corrosion, moisture resistance, good adhesion and high impact resistance.

[0003] The patent document with application number CN202010595346.6 discloses a cable tray, including a main tray, wherein mounting plates are respectively arranged at the upper ends of both sides of the main tray, an alarm mechanism is provided at the middle end inside the main tray, and spacing adjustment mechanisms are respectively arranged at the two ends inside the main tray, each spacing adjustment mechanism includes an adjustment component, each adjustment component includes two movable plates that can move horizontally toward each other, and each movable plate is respectively provided with a cable clamping head.

[0004] However, there are two problems with traditional cable trays during installation:

[0005] First, the cables need to be passed through the bridge during assembly, which is time-consuming and laborious. In addition, at the corners of the building, it is difficult to turn the bridge and the cables for installation.

[0006] Second, the existing bridge length cannot be adjusted. If the bridge is too long, it needs to be cut, which wastes materials.

[0007] Both of these situations make the installation of the cable tray difficult, requiring the use of additional tools to modify the tray, which also reduces the efficiency of the installation. Summary of the invention

[0008] The invention discloses a cable bridge, aiming to solve the technical problems that it is difficult to install at the corner of a building, part of the cables will be exposed, and when the size is insufficient, the bridge needs to be cut, which wastes materials.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A cable tray comprises a first outer shell, one side of the first outer shell is movably connected to a second outer shell, a pressing device is installed inside the first outer shell and the second outer shell, a plurality of first slide rails are movably connected to the inner wall of one side of the first outer shell, one side of the first slide rail is fixedly connected to the first inner shell by bolts, a plurality of second slide rails are movably connected to the inner wall of one side of the second outer shell, one side of the second slide rail is fixedly connected to the second inner shell by bolts, an adjusting device is installed inside the first inner shell and the second inner shell, and a conveying device is installed on one side of the first inner shell and the second inner shell.

[0011] Specifically, when connecting the bridge at the corner of the building, if the size is not enough, or it is too small or too large to connect, the size can be extended or shortened by sliding the first inner shell and the second inner shell to facilitate the connection of the bridge.

[0012] In a preferred embodiment, the outer surfaces of the first outer shell and the second outer shell are respectively provided with a plurality of mounting holes and external heat dissipation holes, the outer surfaces of the first inner shell and the second inner shell are respectively provided with internal heat dissipation holes, and the tops of the first outer shell and the second outer shell are respectively fixedly connected with connecting blocks by bolts.

[0013] Specifically, the mounting holes are used to mount different auxiliary parts, the inner heat dissipation holes and the outer heat dissipation holes are used to dissipate heat from the cables, and the connecting blocks are used to connect the brackets.

[0014] In a preferred solution, a sliding plate is movably connected to the inner wall of one side of the first shell and the second shell respectively, and an operating hole is opened on one side of the sliding plate.

[0015] Specifically, the sliding plate can protect the exposed cables at the bends, and the operating hole is convenient for the user to pull the sliding plate by hand. When not in use, it can be completely retracted inside without interfering with the rotation of the bridge.

[0016] In a preferred solution, a mounting disc is movably connected to an inner wall of one side of the second housing, a rotating shaft is fixedly connected to the inner wall of the mounting disc via bolts, and a roller is movably connected to one end of the rotating shaft.

[0017] Specifically, the mounting disc and the second shell are in contact with each other, and the second shell and the first shell are in contact with each other. The roller can reduce the friction when the cable is pulled, thereby reducing damage to the cable.

[0018] In a preferred embodiment, the pressing device includes a connecting plate, a mounting shaft, a rack, an incomplete gear, a swing rod, a pressing block, and a fixed plate. The mounting shaft is fixedly connected to the inner wall of the mounting disc by bolts, one end of the mounting shaft is movably connected to the connecting plate, one side of the connecting plate is movably connected to the rack, the inner walls of the first shell and the second shell are fixedly connected to the fixing plate by bolts, one side of the fixing plate is movably connected to the incomplete gear, one side of the incomplete gear is fixedly connected to the swing rod by bolts, and one end of the swing rod is fixedly connected to the pressing block by bolts.

[0019] Specifically, when the first shell and the second shell rotate relative to each other, the cables are pressed simultaneously to prevent the cables from loosening and shifting, prevent the cables from being entangled with each other, and fix the positions of the cables.

[0020] In a preferred scheme, the adjusting device includes an active bevel gear, a connecting head, a driven bevel gear, a threaded rod, a main sliding block, a slide plate, a sliding rod, a secondary sliding block, and a wiring ring. The inner walls of the first shell and the second shell are respectively movably connected with short shafts, and the two ends of the short shaft are respectively fixedly connected with the active bevel gear and the connecting head by bolts. The inner walls of the first shell and the second shell are respectively fixedly connected with the slide plate by bolts, one side of the slide plate is movably connected with the threaded rod, one end of the threaded rod is fixedly connected with the driven bevel gear by bolts, one end of the threaded rod is threadedly connected with the main sliding block, sliding rods are respectively inserted on both sides of the main sliding block, and the upper surface of the slide plate is respectively movably connected with multiple secondary sliding blocks, and the top of the secondary sliding block is fixedly connected with the wiring ring by bolts.

[0021] Specifically, the active bevel gear, the driven bevel gear and the threaded rod are driven to rotate through the movable connector, thereby driving the main sliding block and the auxiliary sliding block to slide on the slide plate. Since the slide plate is provided with a plurality of symmetrical radial grooves, the main sliding block and the auxiliary sliding block are brought close to and separated from each other, thereby achieving the function of adjusting the cable spacing.

[0022] In a preferred solution, slide grooves are respectively provided on the outer walls of the first outer shell, the first inner shell, the second inner shell and the second outer shell, and the top slider and the bottom slider are movably connected inside the slide grooves, a rotating rod is movably connected to one side of the bottom slider, a socket is provided on the outer wall of the rotating rod, and a blocking rod is fixedly connected to one side of the bottom slider by bolts.

[0023] Specifically, the exposed end of the cable is inserted into the jack, thereby rotating the rotating rod so that the exposed end of the cable and the blocking rod are pressed against each other, so that the cable will not come loose.

[0024] In a preferred embodiment, the conveying device includes a fixed cylinder, a stretching head, a connecting rod, a spring, a socket, a positioning block, and a clamping block. One side of the bottom slider is fixedly connected to the positioning block by bolts, the top of the bottom slider is movably connected to the fixed cylinder, the top of the fixed cylinder is movably connected to a handle, the top of the handle is movably connected to the connecting rod, the two ends of the connecting rod are respectively fixedly connected to the stretching head and the socket by bolts, the inner wall of one side of the fixed cylinder is fixedly connected to the clamping block by bolts, and the other end of the connecting rod is sleeved with a spring.

[0025] Specifically, the stretching head is pulled to compress the spring so that the clamping block is clamped in the notch of the clamping seat.

[0026] As can be seen from the above, a cable tray includes a first outer shell, a second outer shell is movably connected to one side of the first outer shell, a pressing device is installed inside the first outer shell and the second outer shell, a plurality of first slide rails are movably connected to the inner wall of one side of the first outer shell, a first inner shell is fixedly connected to one side of the first slide rail by bolts, a plurality of second slide rails are movably connected to the inner wall of one side of the second outer shell, a second inner shell is fixedly connected to one side of the second slide rail by bolts, an adjustment device is installed inside the first inner shell and the second inner shell, and a transmission device is installed on one side of the first inner shell and the second inner shell. The cable tray provided by the present invention has the function of facilitating the installation of the cable tray at the corner of the building and adjusting the size. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the main structure of a cable bridge proposed by the present invention.

[0028] Figure 2 This is a schematic diagram of the rear structural view of a cable bridge proposed by the present invention.

[0029] Figure 3 This is a top view of the upward structure of a cable bridge proposed by the present invention.

[0030] Figure 4 This is a cross-sectional view of the cross-sectional structure of a cable bridge proposed by the present invention.

[0031] Figure 5 This is a side view of the enlarged structure of point A of a cable bridge proposed by the present invention.

[0032] Figure 6 This is a side view of the enlarged structure of point B of a cable bridge proposed by the present invention.

[0033] Figure 7 This is a side view of the enlarged structure of point C of a cable bridge proposed by the present invention.

[0034] Figure 8 The figure is a side view of the local structure of a cable bridge proposed by the present invention.

[0035] In the figure: 1, first outer shell; 2, first inner shell; 3, top slider; 4, inner heat dissipation hole; 5, connecting block; 6, mounting hole; 7, outer heat dissipation hole; 8, second inner shell; 9, second slide rail; 10, second outer shell; 11, sliding plate; 12, operating hole; 13, first slide rail; 14, handle; 15, roller; 16, connecting plate; 17, mounting shaft; 18, rack; 19, incomplete gear; 20, swing rod; 21, pressing block; 22, fixed Fixed plate; 23, stop rod; 24, jack; 25, rotating rod; 26, active bevel gear; 27, connector; 28, driven bevel gear; 29, threaded rod; 30, main sliding block; 31, slide plate; 32, sliding rod; 33, auxiliary sliding block; 34, wiring ring; 35, fixing cylinder; 36, stretching head; 37, connecting rod; 38, spring; 39, holder; 40, positioning block; 41, bottom slider; 42, clamping block; 43, mounting disc. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] The cable bridge disclosed in the present invention is mainly used in the corners of buildings, which are difficult to install and will expose part of the cables to the outside, and when the size is insufficient, the bridge needs to be cut.

[0038] Reference Figure 1 and Figure 2 A cable tray comprises a first outer shell 1, a second outer shell 10 is movably connected to one side of the first outer shell 1, a pressing device is installed inside the first outer shell 1 and the second outer shell 10, a plurality of first slide rails 13 are movably connected to the inner wall of one side of the first outer shell 1, one side of the first slide rail 13 is fixedly connected to a first inner shell 2 by bolts, a plurality of second slide rails 9 are movably connected to the inner wall of one side of the second outer shell 10, one side of the second slide rail 9 is fixedly connected to a second inner shell 8 by bolts, an adjusting device is installed inside the first inner shell 2 and the second inner shell 8, and a conveying device is installed on one side of the first inner shell 2 and the second inner shell 8.

[0039] The first slide rails 13 are symmetrically distributed, and holes for connection are respectively opened at the edges of the first inner shell 2 and the second inner shell 8 .

[0040] Specifically, when connecting the bridge at the corner of the building, if the size is not enough, or it is too small or too large to connect, the first inner shell 2 and the second inner shell 8 can be slid to extend or shorten the size to facilitate the connection of the bridge.

[0041] Reference Figure 1 and Figure 3In a preferred embodiment, the outer surfaces of the first outer shell 1 and the second outer shell 10 are respectively provided with a plurality of mounting holes 6 and external heat dissipation holes 7, the outer surfaces of the first inner shell 2 and the second inner shell 8 are respectively provided with internal heat dissipation holes 4, and the tops of the first outer shell 1 and the second outer shell 10 are respectively fixedly connected with connecting blocks 5 by bolts.

[0042] The mounting holes 6 and the external heat dissipation holes 7 are arranged in opposite directions.

[0043] Specifically, the mounting holes 6 are used to mount different auxiliary parts, the inner heat dissipation holes 4 and the outer heat dissipation holes 7 are used to dissipate heat from the cables, and the connecting block 5 is used to connect the bracket.

[0044] Reference Figure 1 and Figure 2 In a preferred embodiment, a sliding plate 11 is movably connected to the inner wall of one side of the first shell 1 and the second shell 10 , and an operating hole 12 is opened on one side of the sliding plate 11 .

[0045] Specifically, the sliding plate 11 can protect the exposed cables at the bends, and the operating hole 12 is convenient for the user to pull the sliding plate 11 by hand. When not in use, it can be completely retracted inside without interfering with the rotation of the bridge.

[0046] Reference Figure 1 and Figure 5 In a preferred embodiment, a mounting disc 43 is movably connected to an inner wall of one side of the second housing 10, a rotating shaft is fixedly connected to the inner wall of the mounting disc 43 by bolts, and a roller 15 is movably connected to one end of the rotating shaft.

[0047] Specifically, the mounting disc 43 and the second housing 10 are in contact with each other, and the second housing 10 and the first housing 1 are in contact with each other. The roller 15 can reduce the friction when the cable is pulled, thereby reducing damage to the cable.

[0048] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6 In a preferred embodiment, the pressing device includes a connecting plate 16, a mounting shaft 17, a rack 18, an incomplete gear 19, a swing rod 20, a pressing block 21, and a fixing plate 22. The mounting shaft 17 is fixedly connected to the inner wall of the mounting disc 43 by bolts, one end of the mounting shaft 17 is movably connected to the connecting plate 16, one side of the connecting plate 16 is movably connected to the rack 18, the inner walls of the first shell 1 and the second shell 10 are fixedly connected to the fixing plate 22 by bolts, one side of the fixing plate 22 is movably connected to the incomplete gear 19, one side of the incomplete gear 19 is fixedly connected to the swing rod 20 by bolts, and one end of the swing rod 20 is fixedly connected to the pressing block 21 by bolts.

[0049] Specifically, when the first housing 1 and the second housing 10 rotate relative to each other, the cables are pressed simultaneously to prevent the cables from loosening and shifting, prevent the cables from being entangled with each other, and fix the positions of the cables.

[0050] Reference Figure 1 and Figure 7 In a preferred embodiment, the adjusting device includes an active bevel gear 26, a connector 27, a driven bevel gear 28, a threaded rod 29, a main sliding block 30, a slide plate 31, a sliding rod 32, an auxiliary sliding block 33, and a wiring ring 34. The inner walls of the first shell 1 and the second shell 10 are respectively movably connected with a short shaft, and the two ends of the short shaft are respectively fixedly connected with the active bevel gear 26 and the connector 27 by bolts. The inner walls of the first shell 1 and the second shell 10 are respectively fixedly connected with the slide plate 31 by bolts, one side of the slide plate 31 is movably connected with the threaded rod 29, one end of the threaded rod 29 is fixedly connected with the driven bevel gear 28 by bolts, one end of the threaded rod 29 is threadedly connected with the main sliding block 30, and sliding rods 32 are respectively inserted on both sides of the main sliding block 30. The upper surface of the slide plate 31 is respectively movably connected with a plurality of auxiliary sliding blocks 33, and the top of the auxiliary sliding block 33 is fixedly connected with the wiring ring 34 by bolts.

[0051] The slide plate 31 is provided with radial grooves.

[0052] Specifically, the active connector 27 drives the active bevel gear 26, the driven bevel gear 28 and the threaded rod 29 to rotate, and drives the main sliding block 30 and the auxiliary sliding block 33 to slide on the slide plate 31. Since the slide plate 31 is provided with a plurality of symmetrical radial grooves, the main sliding block 30 and the auxiliary sliding block 33 are brought close to and separated from each other, thereby achieving the function of adjusting the cable spacing.

[0053] Reference Figure 1 and Figure 7 In a preferred embodiment, slide grooves are respectively provided on the outer walls of the first outer shell 1, the first inner shell 2, the second inner shell 8 and the second outer shell 10, and the top slider 3 and the bottom slider 41 are movably connected inside the slide grooves, and a rotating rod 25 is movably connected to one side of the bottom slider 41, and a socket 24 is provided on the outer wall of the rotating rod 25, and a blocking rod 23 is fixedly connected to one side of the bottom slider 41 by bolts.

[0054] Specifically, the exposed end of the cable is inserted into the insertion hole 24, thereby rotating the rotating rod 25, so that the exposed end of the cable and the blocking rod 23 are pressed against each other, so that the cable will not get loose.

[0055] Reference Figure 1 and Figure 8In a preferred embodiment, the conveying device includes a fixed cylinder 35, a stretching head 36, a connecting rod 37, a spring 38, a holder 39, a positioning block 40, and a block 42. One side of the bottom slider 41 is fixedly connected to the positioning block 40 by bolts, the top of the bottom slider 41 is movably connected to the fixed cylinder 35, the top of the fixed cylinder 35 is movably connected to the handle 14, the top of the handle 14 is movably connected to the connecting rod 37, the two ends of the connecting rod 37 are respectively fixedly connected to the stretching head 36 and the holder 39 by bolts, the inner wall of one side of the fixed cylinder 35 is fixedly connected to the block 42 by bolts, and the other end of the connecting rod 37 is sleeved with a spring 38.

[0056] The cross section of the connecting rod 37 is irregular, the connecting rod 37 and the handle 14 can slide, and the handle 14 can move the connecting rod 37 .

[0057] Specifically, the stretching head 36 is pulled to compress the spring 38 so that the clamping block 42 is clamped in the notch of the clamping seat 39 .

[0058] Working principle: When in use, pass one end of the cable through the wiring ring 34, insert the exposed end of the cable into the jack 24, pull the stretching head 36, compress the spring 38, make the block 42 stuck in the notch of the holder 39, turn the handle 14, and then turn the rotating rod 25, so that the exposed end of the cable and the blocking rod 23 are squeezed against each other, so that the cable will not loosen, push the handle 14, make the bottom slider 41 slide in the slide groove, drag the cable to slide inside the first outer shell 1 and the first inner shell 2, so as to improve the installation efficiency of the cable, at the installation disc 43, turn the handle 14 to loosen the cable, install the cable on another rotating rod 25 in the same way, pull the cable out of the second inner shell 8, so as to facilitate the installation of the cable, so that the cable can be easily installed in a turn, and drive the main The movable bevel gear 26, the driven bevel gear 28 and the threaded rod 29 rotate, driving the main sliding block 30 and the auxiliary sliding block 33 to slide on the slide plate 31. Since the slide plate 31 is provided with a plurality of symmetrical radial grooves, the main sliding block 30 and the auxiliary sliding block 33 can be brought close to and separated from each other, thereby achieving the function of adjusting the cable spacing. After the cables are installed, at a general corner of a building, the first shell 1 and the second shell 10 are rotated relative to each other to form an angle of ninety degrees, pushing the connecting plate 16 to rotate, thereby pushing the rack 18 to slide, and the rack 18 and the incomplete gear 19 are engaged, so that the swing rod 20 and the pressing block 21 are rotated to press the cable to prevent the cable from being loosely wound together, and the cable can be fixed while changing the bending angle of the bridge frame, so as to improve the stability of the cable after installation.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable tray, comprising a first housing (1), characterized in that: One side of the first outer shell (1) is rotatably connected to the second outer shell (10), and pressing devices are installed inside the first outer shell (1) and the second outer shell (10). A plurality of first slide rails (13) are slidably connected to the inner wall of one side of the first outer shell (1), and one side of the first slide rail (13) is fixedly connected to the first inner shell (2). A plurality of second slide rails (9) are slidably connected to the inner wall of one side of the second outer shell (10), and one side of the second slide rail (9) is fixedly connected to the second inner shell (8). An adjusting device is installed inside the first inner shell (2) and the second inner shell (8), and a conveying device is installed on one side of the first inner shell (2) and the second inner shell (8); A mounting disc (43) is rotatably connected to an inner wall of one side of the second housing (10), a rotating shaft is fixedly connected to the inner wall of the mounting disc (43), and a roller (15) is rotatably connected to one end of the rotating shaft; The pressing device comprises a connecting plate (16), a mounting shaft (17), a rack (18), an incomplete gear (19), a swinging rod (20), a pressing block (21), and a fixing plate (22); the mounting shaft (17) is fixedly connected to the inner wall of the mounting disc (43); one end of the mounting shaft (17) is slidably connected to the connecting plate (16); one side of the connecting plate (16) is rotatably connected to the rack (18); the inner walls of the first housing (1) and the second housing (10) are fixedly connected to the fixing plate (22); one side of the fixing plate (22) is rotatably connected to the incomplete gear (19); one side of the incomplete gear (19) is fixedly connected to the swinging rod (20); and one end of the swinging rod (20) is fixedly connected to the pressing block (21).

2. A cable tray according to claim 1, characterized in that: The outer surfaces of the first outer shell (1) and the second outer shell (10) are respectively provided with a plurality of mounting holes (6) and external heat dissipation holes (7); the outer surfaces of the first inner shell (2) and the second inner shell (8) are respectively provided with internal heat dissipation holes (4); and the tops of the first outer shell (1) and the second outer shell (10) are respectively fixedly connected with connection blocks (5).

3. A cable tray according to claim 2, characterized in that: A sliding plate (11) is slidably connected to the inner wall of one side of the first shell (1) and the second shell (10), respectively, and an operating hole (12) is provided on one side of the sliding plate (11).

4. A cable tray according to claim 3, characterized in that: The adjusting device comprises a driving bevel gear (26), a connecting head (27), a driven bevel gear (28), a threaded rod (29), a main sliding block (30), a sliding groove plate (31), a sliding rod (32), a secondary sliding block (33), and a wiring ring (34); short shafts are rotatably connected to the inner walls of the first housing (1) and the second housing (10), and the two ends of the short shafts are fixedly connected to the driving bevel gear (26) and the connecting head (27); and the inner walls of the first housing (1) and the second housing (10) are They are respectively fixedly connected to a slide plate (31), one side of the slide plate (31) is rotatably connected to a threaded rod (29), one end of the threaded rod (29) is fixedly connected to a driven bevel gear (28), one end of the threaded rod (29) is threadedly connected to a main sliding block (30), both sides of the main sliding block (30) are respectively plugged with sliding rods (32), the upper surface of the slide plate (31) is respectively slidably connected to a plurality of auxiliary sliding blocks (33), and the top of the auxiliary sliding block (33) is fixedly connected to a wiring ring (34).

5. A cable tray according to claim 4, characterized in that: The first outer shell (1), the first inner shell (2), the second inner shell (8) and the second outer shell (10) are respectively provided with sliding grooves, and the top slider (3) and the bottom slider (41) are respectively slidably connected inside the sliding grooves, and a rotating rod (25) is rotatably connected to one side of the bottom slider (41), and a plug hole (24) is provided on the outer wall of the rotating rod (25), and a blocking rod (23) is fixedly connected to one side of the bottom slider (41).

6. A cable tray according to claim 5, characterized in that: The conveying device comprises a fixed cylinder (35), a stretching head (36), a connecting rod (37), a spring (38), a holder (39), a positioning block (40), and a blocking block (42); one side of the bottom slider (41) is fixedly connected to the positioning block (40); the top of the bottom slider (41) is rotatably connected to the fixed cylinder (35); the top of the fixed cylinder (35) is rotatably connected to a handle (14); the top of the handle (14) is rotatably connected to the connecting rod (37); the two ends of the connecting rod (37) are respectively fixedly connected to the stretching head (36) and the holder (39); the inner wall of one side of the fixed cylinder (35) is fixedly connected to the blocking block (42); and the other end of the connecting rod (37) is sleeved with a spring (38).

7. A cable tray according to claim 6, characterized in that: The sliding rod (32) and the auxiliary sliding block (33) are slidably connected, and a hexagonal groove is provided on the surface of the connecting head (27).

8. A cable tray according to claim 7, characterized in that: The fixed cylinder (35) and the rotating rod (25) are coaxial.

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