A cable docking device for laying cables in a cable trench

Abstract

The application relates to a cable butt joint device for laying cables in a cable trench, and relates to the technical field of cable laying, which comprises a supporting assembly, a lowering assembly, two sets of clamping assemblies and two sets of protection rods, the supporting assembly comprises a supporting frame and a treading piece, the supporting frame is provided with a butt joint space, the bottom end of the butt joint space is provided with a lowering gap, the lowering assembly comprises a sliding rail, a sliding block, a lowering rod and a transmission part, the clamping assembly comprises a first power piece and a clamping part, the treading piece is used for forming cable protection of the protection rods when being treading, and is used for canceling the protection formed by the protection rods when the treading is released, the first power piece is used for driving the clamping part to automatically clamp or release the cables, and the transmission part is used for driving the sliding block and the lowering rod to synchronously act, so that the butt joint part of the cables can be lowered in a state of not being easy to bend, the cables can be butt jointed in a protection state, and the cables are not easy to bend when being lowered. The application improves the success rate of cable butt joint and lowering of the cable trench.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable laying, in particular to a cable butt joint device for laying cables in a cable trench. BACKGROUND

[0002] In order to upload the electricity generated by the wind power equipment to the power grid, the wind power equipment needs to be electrically connected to the booster station through a cable. The existing wind power cable is usually laid in a straight buried manner.

[0003] When the cable of the wind power is straight buried, a cable trench needs to be excavated first, and then a traction machine is used to lay the cable in the cable trench. Since the wind power usually needs to lay a relatively long cable, the cable needs to be butt jointed during the laying process. In order to facilitate the cable butt jointing by the construction personnel, a cable butt joint device is usually used during the cable butt jointing, such as the auxiliary quick connection device for wire and cable butt jointing disclosed in Chinese Patent No. CN215897175U and the device for facilitating high-voltage cable butt joint construction disclosed in Chinese Patent No. CN217182804U.

[0004] Although the above-mentioned cable butt joint device can fix the cable to assist the cable butt jointing during the cable butt jointing, there may be underground water permeating in the cable trench, and it is difficult to pump out the permeated underground water in a short time, so that the cable butt jointing can only be performed on the shore of one side of the cable trench. After the cable butt jointing, the part of the cable to be butt jointed needs to be placed into the water-permeated cable trench. When the cable is lowered into the cable trench, the butt joint part is easy to bend, which may cause the seal of the butt joint part to be damaged or the electrical contact to be poor, thereby reducing the success rate of the cable butt jointing and the cable lowering into the cable trench. SUMMARY

[0005] In order to improve the success rate of the cable butt jointing and the cable lowering into the cable trench, the present application provides a cable butt joint device for laying cables in a cable trench.

[0006] The cable butt joint device for laying cables in a cable trench provided by the present application adopts the following technical scheme:

[0007] A cable butt joint device for laying cables in a cable trench, comprising a supporting assembly, a lowering assembly, two sets of clamping assemblies and two sets of protection rods, the supporting assembly is arranged on both banks of the cable trench, the supporting assembly is provided with a butt joint space, the butt joint space is used for butt jointing the cable, and the butt joint space is provided with a lowering gap for lowering the butt jointed cable;

[0008] The lowering assembly comprises a sliding rail, two sliding blocks, two lowering rods and a transmission part.

[0009] The slide rail is connected in the docking space, the sliding block is slidingly arranged on the slide rail, the sliding block slides along the laying direction of the cable, the drop rod vertically and slidingly penetrates through the sliding block in a one-to-one correspondence, the transmission part is in transmission connection with the slide rail and the sliding block, and the transmission part is in transmission connection with the sliding block and the drop rod, the transmission part is used for synchronously and simultaneously sliding the two sliding blocks in the slide rail, and the transmission part is used for driving the drop rod to slide when the sliding block slides;

[0010] The clamping assembly is in one-to-one correspondence with the drop rod, the clamping assembly comprises a first power member and a clamping part, the first power member is connected to the top end of the drop rod, the clamping part is connected to the bottom end of the drop rod, the first power member is in transmission connection with the clamping part, and the first power member is used for driving the clamping part to clamp or release the cable;

[0011] The two groups of protection rods are in one-to-one correspondence with the two groups of clamping assemblies, each group of protection rods is provided with two, the support assembly comprises a treading member, the treading member is used for treading and sliding downward and elastically resetting, the protection rod is in transmission connection with the treading member, when the treading member slides downward, the treading member drives the two protection rods of each group to swing and abut, and the two abutting protection rods are opposite to the drop gap.

[0012] Optionally, the transmission part comprises a drop screw and a second power member, the drop screw is rotationally connected to the slide rail and is in threaded penetration through the two sliding blocks, the second power member is installed at one end of the slide rail and is connected with the drop screw, and the second power member is used for driving the drop screw to rotate.

[0013] Optionally, the transmission part comprises a first rack, two first gears, two second gears and two second racks, the first rack is connected to the slide rail and is in length direction consistent with the sliding direction of the sliding block, the first gear is rotationally connected to the sliding block in a one-to-one correspondence, the first gear is in meshing with the first rack, the second gear is connected to the first gear in a one-to-one correspondence, the second gear is in meshing with the second rack in a one-to-one correspondence, and the second rack is embedded in the drop rod in a one-to-one correspondence.

[0014] Optionally, a first bellows is connected between the bottom surface of the sliding block and the bottom end of the drop rod, the first bellows is sleeved on the drop rod, and the connection part of the first bellows and the drop rod is in a sealed state.

[0015] Optionally, the clamping part comprises a connecting frame and two clamping blocks, the connecting frame is connected to the drop rod, the two clamping blocks are slidingly arranged on the connecting frame, the first power member is in transmission connection with the two clamping blocks, and the first power member is used for driving the two clamping blocks to move close to or away from each other.

[0016] Optionally, the first power member is connected with a transmission rod, the first power member is used to drive the transmission rod to rotate, the transmission rod rotates through the lower placing rod and the connecting frame, the end of the transmission rod away from the first power member is connected with a first bevel gear, the two sides of the first bevel gear are engaged with second bevel gears, each second bevel gear is connected with a transmission screw, the transmission screw is rotatably connected to the connecting frame, and the transmission screws are threadedly arranged on the clamping blocks one by one.

[0017] Optionally, the first bevel gear and the two second bevel gears are jointly covered with a waterproof shell, the waterproof shell is connected to the connecting frame, two second bellows are sleeved on each transmission screw, the two second bellows are located on the two sides of the clamping block and are connected to the clamping block, the end of the second bellows away from the clamping block and close to the waterproof shell is connected to the waterproof shell, and the end of the second bellows away from the clamping block and away from the waterproof shell is connected to the connecting frame.

[0018] Optionally, the support assembly further comprises a support frame, the two ends of the support frame are supported on the two banks of the cable trench, the docking space is arranged at the middle part of the support frame, the lower placing notch is arranged at the bottom end of the docking space, the treading member comprises two footboards and two connecting rods, the two footboards are located on the two sides of the docking space and are vertically and elastically slidably arranged on the support frame, the two connecting rods are located at the two ends of the docking space, the two ends of each connecting rod are connected with the two footboards respectively, the protection rods are hingedly connected to the support frame, each footboard is in transmission connection with the two protection rods close to the footboard, and the footboard drives the protection rods to swing when the footboard slides downward.

[0019] Optionally, the protection rods are connected with third gears through the hinging shafts of the protection rods, the third gears are engaged with third racks, and the third racks are connected to the footboards.

[0020] Optionally, the connecting rods are provided with locking sliding grooves, locking rods are slidably arranged in the locking sliding grooves, the locking rods slide through the sliding rails, release springs are arranged between the locking rods and the sliding rails, the sliding blocks are provided with locking grooves for the locking rods to insert, and the top walls of the locking sliding grooves are provided with locking inclined surfaces, the locking inclined surfaces are used to push the locking rods to insert into the locking grooves when the connecting rods slide downward with the footboards, and the release springs are used to drive the locking rods to come out of the locking grooves when the connecting rods slide upward with the footboards.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] The cable butt joint device for laying cables in a cable trench comprises a supporting assembly, a lowering assembly, two sets of clamping assemblies and two sets of protection rods, wherein when a construction worker pulls the cable and steps on the pedal, the pedal can drive the protection rods to swing to form a falling protection for the cable, so that the cable is not easy to fall into water due to accidents when butt joint; the first power member can drive the clamping blocks to clamp the cable, so as to facilitate the construction worker to perform butt joint operation of the cable; after butt joint of the cable, the construction worker leaves the pedal, the pedal is elastically reset, and the protection rods are driven to remove the formed protection, so that the butt joint part of the cable can be lowered; the second power member and the lowering screw rod can drive the two sliding blocks to slide synchronously, the first rack, the first gear, the second gear and the second rack can make the two lowering rods slide synchronously, so that the butt joint part of the cable can be lowered into the water-permeable cable trench in a state that is not easy to bend, thereby the butt joint part of the cable is not easy to have problems of water contact, seal damage or poor electrical contact, and the success rate of butt joint of the cable and lowering of the cable trench is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of an embodiment of the present application;

[0024] Figure 2 is a structural schematic view of a pedal member, a supporting frame and a reset spring;

[0025] Figure 3 is a structural schematic view of a transmission part;

[0026] Figure 4 is a structural schematic view of a clamping assembly;

[0027] Figure 5 is Figure 4 is an enlarged view of A in FIG. 6;

[0028] Figure 6 is Figure 2 is an enlarged view of B in FIG. 6.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1, support assembly; 11, docking space; 12, lowering gap; 13, treading part; 131, tread plate; 132, connecting rod; 14, support frame; 15, locking chute; 151, locking slope; 16, reset spring; 17, locking rod; 18, release spring; 2, lowering assembly; 21, sliding rail; 22, sliding block; 221, locking groove; 23, lowering rod; 231, first bellows; 24, transmission part; 241, lowering screw; 242, second power part; 243, first rack; 244, first gear; 245, second gear; 246, second rack; 247, protective shell; 3, clamping assembly; 31, first power part; 32, clamping part; 321, connecting frame; 322, clamping block; 323, clamping groove; 33, transmission rod; 34, first bevel gear; 35, second bevel gear; 36, transmission screw; 37, waterproof shell; 38, second bellows; 4, protective rod; 41, third gear; 42, third rack; 5, lifting ring. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying drawings. Figures 1-6 The present application is further described in detail.

[0032] The present application discloses a cable docking device for laying cables in a cable trench. Referring to Figure 1 A cable docking device for laying cables in a cable trench includes a support assembly 1, a lowering assembly 2, two sets of clamping assemblies 3, and two sets of protective rods 4.

[0033] The support assembly 1 is arranged on both sides of the cable trench, and the support assembly 1 is provided with a docking space 11 for docking cables. The docking space 11 is provided with a lowering gap 12 for lowering the docked cables.

[0034] Referring to Figure 2 and Figure 3 The lowering assembly 2 includes a sliding rail 21, two sliding blocks 22, two lowering rods 23, and a transmission part 24.

[0035] The sliding rail 21 is connected in the docking space 11, the sliding blocks 22 are slidingly arranged on the sliding rail 21 and slide along the laying direction of the cables; the lowering rods 23 are vertically slidingly arranged in the sliding blocks 22 one by one; the transmission part 24 is transmissionally connected with the sliding rail 21 and the sliding blocks 22, and transmissionally connected with the sliding blocks 22 and the lowering rods 23. The transmission part 24 is used for synchronously and identically displacing the two sliding blocks 22 in the sliding rail 21, so that the docking part of the cable is not easy to bend and the previously laid cable can be laid along the cable trench without bending. The transmission part 24 is used for driving the lowering rods 23 to slide when the sliding blocks 22 slide, so that the docking part of the cable is automatically lowered into the water-permeable cable trench.

[0036] Referring to Figure 2The clamping assembly 3 corresponds to the lower placing rod 23 in one-to-one manner, the clamping assembly 3 comprises a first power member 31 and a clamping part 32, the first power member 31 is connected to the top end of the lower placing rod 23, so that the first power member 31 is not easy to be damaged by being immersed in water, the clamping part 32 is connected to the bottom end of the lower placing rod 23, so as to facilitate the butt joint part of the cable to reach the bottom of the cable trench, the first power member 31 is in transmission connection with the clamping part 32, and the first power member 31 is used to drive the clamping part 32 to clamp or release the cable. In the embodiment, the first power member 31 is a motor.

[0037] The two groups of protection rods 4 correspond to the two groups of clamping assemblies 3 in one-to-one manner, each group of protection rods 4 is provided with two, the support assembly 1 comprises a treading member 13, the treading member 13 is used to treading and sliding downward and elastically resetting, the protection rod 4 is in transmission connection with the treading member 13, when the treading member 13 slides downward, the treading member 13 drives the two protection rods 4 of each group to swing and abut, and the two abutting protection rods 4 are opposite to the lower placing gap 12.

[0038] In use, the support assembly 1 is arranged on both sides of the cable trench, a construction worker manually pulls the end of the cable to the support assembly 1, and treads the treading member 13 to slide downward, the construction worker pulls the two cable ends to be butt jointed to the two clamping parts 32 respectively, and the first power member 31 drives the clamping part 32 to act, so that the clamping part 32 can clamp the cable end, and the two cables to be butt jointed can be fixed in position, so that the construction worker can butt joint.

[0039] When the construction worker treads the treading member 13 to slide downward, the treading member 13 can drive the two protection rods 4 of each group to swing and abut, and since the two abutting protection rods 4 are opposite to the lower placing gap 12, the two protection rods 4 can form protection below the cable, so as to prevent the cable from falling into the water-permeable cable trench due to an accident, for example, the cable falls into the water-permeable cable trench due to accidental hand loosening of the construction worker or accidental loosening of the clamping part 32, thereby reducing the accidental risk in the cable butt joint process.

[0040] Since the support assembly 1 needs to be provided with the butt joint space 11 for the construction worker to butt joint the cable, the support strength of the support assembly 1 is weakened, the two abutting protection rods 4 of each group can exert upward inclined support force on each other, when the construction worker stands on the support assembly 1, the butt joint space 11 can obtain support strengthening of the protection rods 4, so that the support assembly 1 is easy to support multiple people to complete the cable butt joint operation.

[0041] After the cable is butt-jointed, the construction personnel walks from the support assembly 1 to the bank of the cable trench to observe the lowering process of the butt-jointed part of the cable, at this time, the treading piece 13 can be elastically reset, and the treading piece 13 can drive the two abutting protection rods 4 to swing reversely to release the protection of the cable, the transmission part 24 drives the two sliding blocks 22 to synchronously and synchronously move the same displacement, when the sliding blocks 22 slide, the transmission part 24 drives the lowering rod 23 to slide downward, so that the butt-jointed part of the cable can be obliquely lowered into the water permeable cable trench, so that the previously laid cable can be laid along the cable trench without bending, and under the driving of the transmission part 24, the two clamping parts 32 can have consistent lowering movement paths, so that the butt-jointed part of the cable can be bent-free lowered into the cable trench under the clamping of the two clamping parts 32, so that the butt-jointed part of the cable is not easy to bend during the lowering process.

[0042] Based on the above analysis, the risk of the cable falling into the water permeable cable trench during butt joint is reduced by the protection rod 4, and through the coordinated action of the sliding block 22, the lowering rod 23 and the transmission part 24, the cable is easy to be bent-free lowered into the water permeable cable trench, so that the butt-jointed part of the cable is not easy to have the problems of water contact, seal damage or poor electrical contact, thereby improving the success rate of cable butt joint and lowering the cable trench.

[0043] Specifically, referring to Figure 3 , the transmission part 24 comprises a lowering screw rod 241 and a second power piece 242.

[0044] The lowering screw rod 241 is rotationally connected to the sliding rail 21, and is threaded through the two sliding blocks 22; the second power piece 242 is installed at one end of the sliding rail 21 and connected with the lowering screw rod 241, and the second power piece 242 is used to drive the lowering screw rod 241 to rotate. In the embodiment, the second power piece 242 is a motor, the second power piece 242 is fixedly connected to the sliding rail 21, and the output shaft of the second power piece 242 is fixedly connected with the lowering screw rod 241.

[0045] When the butt-jointed part of the cable needs to be lowered, the second power piece 242 drives the lowering screw rod 241 to rotate, and the lowering screw rod 241 threadedly drives the two sliding blocks 22 to slide in the sliding rail 21, since the two sliding blocks 22 are driven by one lowering screw rod 241, so that the two sliding blocks 22 are easy to realize synchronous, synchronous and same displacement sliding.

[0046] Further, referring to Figure 3 , the transmission part 24 further comprises a first rack 243, two first gears 244, two second gears 245 and two second racks 246.

[0047] The first rack 243 is fixed on the slide rail 21 and has the same length direction as the sliding direction of the slide block 22; the first gear 244 is rotationally connected to the slide block 22 in one-to-one correspondence, and the first gear 244 is engaged with the first rack 243; the second gear 245 is coaxially fixed on the first gear 244 in one-to-one correspondence, and the second gear 245 is engaged with the second rack 246 in one-to-one correspondence; and the second rack 246 is fixedly embedded on the lower placing rod 23 in one-to-one correspondence.

[0048] Referring to Figure 1 and Figure 3 , in order to avoid the influence of the falling impurities on the first rack 243 on the meshing transmission of the first rack 243 and the first gear 244, the protective shell 247 is fixed on the slide rail 21, the protective shell 247 covers the first rack 243 and the first gear 244, and the protective shell 247 is provided with an opening for the movement of the first gear 244.

[0049] When the slide block 22 slides, the slide block 22 can drive the first gear 244 to move relative to the first rack 243, under the meshing transmission of the first gear 244 and the first rack 243, the first gear 244 can rotate, the rotating first gear 244 can drive the second gear 245 to rotate, the second gear 245 can drive the second rack 246 to move relative to the slide block 22, so that the lower placing rod 23 can slide under the driving of the second rack 246 along with the sliding of the slide block 22, so that under the synchronous driving of the slide block 22 and the lower placing rod 23, the clamping part 32 can be driven to move obliquely downward.

[0050] Referring to Figure 4 , in order to prevent the second rack 246 from being immersed in water and rusting, a first bellows 231 is arranged between the bottom surface of the slide block 22 and the bottom end of the lower placing rod 23, the first bellows 231 is sleeved on the lower placing rod 23, the two ends of the first bellows 231 are fixed with the slide block 22 and the lower placing rod 23 respectively, and the connection part of the first bellows 231 and the lower placing rod 23 is in a sealed state.

[0051] When the lower placing rod 23 moves downward, the first bellows 231 can be elongated along with the downward movement of the lower placing rod 23, and the part of the second rack 246 sliding through the slide block 22 can be located in the first bellows 231, under the protection of the first bellows 231, the second rack 246 is not easy to contact with water, so that the second rack 246 is not easy to rust.

[0052] Specifically, referring to Figure 4 , the clamping part 32 comprises a connecting frame 321 and two clamping blocks 322.

[0053] The connecting frame 321 is fixedly connected to the lower placing rod 23, the two clamping blocks 322 are slidingly arranged on the connecting frame 321, and the first power member 31 is in transmission connection with the two clamping blocks 322. The first power member 31 is used to drive the two clamping blocks 322 to move close to or away from each other.

[0054] In the embodiment, in order to clamp the cable more effectively, the side, where the two clamping blocks 322 move close to each other, is provided with a circular-arc-shaped clamping groove 323, and the clamping groove 323 is used to fit on the outer surface of the cable.

[0055] Since the first power member 31 can drive the two clamping blocks 322 to move close to or away from each other, when the cable is placed between the two clamping blocks 322, the first power member 31 can drive the two clamping blocks 322 to move close to the cable synchronously until the two clamping blocks 322 clamp the cable, so that the cable is clamped conveniently.

[0056] Further, referring to Figure 4 and Figure 5 , the conveying shaft of the first power member 31 is fixedly connected with a transmission rod 33, the first power member 31 is used to drive the transmission rod 33 to rotate, the transmission rod 33 rotates through the lower placing rod 23 and the connecting frame 321, the end, away from the first power member 31, of the transmission rod 33 is fixedly connected with a first bevel gear 34, the two sides of the first bevel gear 34 are engaged with second bevel gears 35, each second bevel gear 35 is fixedly connected with a transmission screw rod 36, the transmission screw rod 36 is in rotational connection with the connecting frame 321, and the transmission screw rod 36 is threadedly arranged in the clamping block 322 in a one-to-one correspondence.

[0057] The first power member 31 can drive the transmission rod 33 to rotate, the transmission rod 33 can drive the transmission screw rod 36 to rotate through the first bevel gear 34 and the second bevel gear 35, since the transmission screw rod 36 is threadedly arranged in the clamping block 322, the transmission screw rod 36 can drive the clamping block 322 to slide, so that the first power member 31 can drive the two clamping blocks 322 to slide synchronously.

[0058] Referring to Figure 4 and Figure 5 , in order to prevent the first bevel gear 34, the second bevel gear 35 and the transmission screw rod 36 from being immersed in water and rusting, a waterproof shell 37 is jointly arranged on the first bevel gear 34 and the two second bevel gears 35, the waterproof shell 37 is fixedly connected to the connecting frame 321, and the transmission screw rod 36 rotates through the waterproof shell 37; two second bellows 38 are sleeved on each transmission screw rod 36, the two second bellows 38 are located on the two sides of the clamping block 322 and are fixedly connected to the clamping block 322, the end, away from the clamping block 322, of the second bellows 38, close to the waterproof shell 37, is fixedly connected to the waterproof shell 37, and the end, away from the clamping block 322, of the second bellows 38, away from the waterproof shell 37, is fixedly connected to the connecting frame 321.

[0059] The waterproof shell 37 can effectively prevent the first bevel gear 34 and the second bevel gear 35 from being touched by water, so that the first bevel gear 34 and the second bevel gear 35 are not prone to rust; the second bellows 38 can effectively prevent the transmission screw 36 from being touched by water without affecting the sliding of the transmission screw 36 to drive the clamping block 322, so that the transmission screw 36 is not prone to rust.

[0060] Specifically, referring to Figure 1 , the support assembly 1 further comprises a support frame 14, both ends of the support frame 14 are supported on the two banks of the cable trench, the docking space 11 is arranged at the middle part of the support frame 14, and the lowering notch 12 is arranged at the bottom end of the docking space 11.

[0061] Referring to Figure 2 , the treading member 13 comprises two tread plates 131 and two connecting rods 132, the two tread plates 131 are respectively located at the two sides of the docking space 11 and are vertically and elastically slidably arranged on the support frame 14; the two connecting rods 132 are respectively located at the two ends of the docking space 11, and both ends of each connecting rod 132 are respectively fixedly connected with the two tread plates 131; the protection rods 4 are hingedly connected to the support frame 14, each tread plate 131 is in transmission connection with the two protection rods 4 close to itself, and when the tread plate 131 slides downward, the tread plate 131 drives the protection rods 4 to swing.

[0062] The two tread plates 131 form a whole through the two connecting rods 132, and a construction worker standing on any one side of the docking space 11 can synchronously drive the two groups of four protection rods 4 to swing synchronously, so that as long as the construction worker stands on the tread plate 131, the protection rods 4 can be automatically driven to protect the cable; after the cable docking is completed, the construction worker will walk from the tread plate 131 to the bank of the cable trench, at this time, the tread plate 131 can be elastically reset, so that the tread plate 131 can automatically drive the protection rods 4 to release the protection of the cable, so that the protection rods 4 are not easy to affect the lowering of the cable docking part.

[0063] Further, referring to Figure 2 and Figure 6 , the protection rod 4 is fixedly connected with the third gear 41 through the hinged shaft thereof, the third gear 41 is engaged with the third rack 42, and the third rack 42 is fixedly connected to the tread plate 131. Among them, the hinged shaft of the protection rod 4 is in rotary connection with the support frame 14 and is fixedly connected with the protection rod 4, so that the protection rod 4 can be fixedly connected with the third gear 41 through the hinged shaft thereof.

[0064] When the tread plate 131 slides downward, the tread plate 131 can drive the third rack 42 to move, the third rack 42 can drive the third gear 41 to rotate, so that the third gear 41 can drive the protection rod 4 to swing, so that the tread plate 131 can automatically drive the protection rod 4 to swing when being stepped on.

[0065] Further, referring to Figure 2 , the lower part of the pedal 131 is provided with a plurality of reset springs 16, both ends of the reset spring 16 are fixedly connected with the pedal 131 and the support frame 14. In order to enable the reset spring 16 to stably support the pedal 131, all the reset springs 16 are arranged in a rectangular array. After the construction personnel leaves the pedal 131, the reset spring 16 can drive the pedal 131 to reset through the elastic force of the reset spring 16, so that the pedal 131 can automatically drive the protection rod 4 to swing reversely.

[0066] Referring to Figure 3 and Figure 4 , in order to prevent the sliding block 22 from driving the cable to drop during the cable docking process due to the failure or misoperation of the transmission part 24, a locking sliding groove 15 is formed on the connecting rod 132, a locking rod 17 is slidably arranged in the locking sliding groove 15, the locking rod 17 slides in the vertical direction in the locking sliding groove 15, the locking rod 17 slides in the horizontal direction and is arranged on the sliding rail 21, a release spring 18 is arranged between the locking rod 17 and the sliding rail 21, a locking groove 221 is formed on the sliding block 22 for the locking rod 17 to insert, and a locking inclined surface 151 is arranged on the top wall of the locking sliding groove 15.

[0067] Referring to Figure 2 and Figure 4 , when the connecting rod 132 slides downward with the pedal 131, the locking inclined surface 151 is used to push the locking rod 17 to insert into the locking groove 221 to fix the position of the sliding block 22, and when the connecting rod 132 slides upward with the pedal 131, the release spring 18 is used to drive the locking rod 17 to move out of the locking groove 221.

[0068] When the construction personnel stands on the pedal 131 to dock the cable, both the pedal 131 and the connecting rod 132 can be driven to slide downward, when the connecting rod 132 slides downward, the locking rod 17 can slide in the locking sliding groove 15, so that the locking inclined surface 151 of the locking sliding groove 15 can push the locking rod 17 to slide to the sliding block 22, and the locking rod 17 can insert into the locking groove 221, and the locking rod 17 can fix the sliding block 22 relative to the sliding rail 21, so that the sliding block 22 is difficult to slide and the cable is difficult to drop during the construction personnel docks the cable.

[0069] Referring to Figure 1 , in order to facilitate the movement of the cable docking device, four lifting rings 5 are fixedly connected on the support frame 14, so as to facilitate the lifting of the cable docking device by lifting equipment.

[0070] The implementation principle of the cable butt joint device for laying cables in a cable trench is as follows: when in use, the support frame 14 is arranged on both banks of the water permeable cable trench, a worker pulls the cable end and walks onto the pedal 131, the pedal 131 slides downward and drives the protective rod 4 to swing, the protective rod 4 forms a falling protection for the cable, the pedal 131 drives the connecting rod 132 to move downward, the locking slope 151 pushes the locking rod 17 to insert into the locking groove 221, so as to fix the sliding block 22 and the sliding rail 21, the worker places the cable between the two clamping blocks 322, the first power member 31 drives the two clamping blocks 322 to clamp the cable, so that the worker can perform the cable butt joint operation.

[0071] After the cable is butt jointed, the worker leaves the pedal 131, the pedal 131 is elastically reset, the pedal 131 drives the protective rod 4 to release the protection for the cable, the pedal 131 drives the connecting rod 132 to move upward, the spring 18 drives the locking rod 17 to move out of the locking groove 221, the second power member 242 drives the two sliding blocks 22 to synchronously and simultaneously displace, the sliding block 22 drives the downward placing rod 23 to slide downward, so that the butt joint part of the cable can be placed into the water permeable cable trench without being easily bent, thereby improving the success rate of the cable butt joint and the cable placing into the cable trench.

[0072] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A cable splicing device for laying cables in cable trenches, characterized in that: It includes a support assembly (1), a lowering assembly (2), two sets of clamping assemblies (3) and two sets of protective rods (4). The support assembly (1) is supported on both sides of the cable trench. The support assembly (1) is provided with a docking space (11) for docking cables. The docking space (11) is provided with a lowering notch (12) for lowering the docked cable. The lowering assembly (2) includes a slide rail (21), two sliders (22), two lowering rods (23), and a transmission unit (24); The slide rail (21) is connected in the docking space (11). The slider (22) is slidably set on the slide rail (21). The slider (22) slides along the laying direction of the cable. The lowering rod (23) slides vertically through the slider (22) in a corresponding manner. The transmission part (24) drives the slide rail (21) and the slider (22), and drives the slider (22) and the lowering rod (23). The transmission part (24) is used to make the two sliders (22) slide synchronously, in the same direction and with the same displacement in the slide rail (21). The transmission part (24) is used to drive the lowering rod (23) to slide when the slider (22) slides. The clamping assembly (3) corresponds one-to-one with the lowering rod (23). The clamping assembly (3) includes a first power member (31) and a clamping part (32). The first power member (31) is connected to the top of the lowering rod (23), and the clamping part (32) is connected to the bottom of the lowering rod (23). The first power member (31) and the clamping part (32) are connected in a transmission. The first power member (31) is used to drive the clamping part (32) to clamp or release the cable. Two sets of protective rods (4) correspond one-to-one with two sets of clamping components (3). Each set of protective rods (4) has two. The support component (1) includes a foot pedal (13). The foot pedal (13) is used for stepping down and elastically restoring. The protective rods (4) are connected to the foot pedal (13) in a transmission. When the foot pedal (13) slides down, the foot pedal (13) drives the two protective rods (4) of each set to swing and abut. The two protective rods (4) that abut are directly opposite the lowering notch (12).

2. The cable splicing device for laying cables in cable trenches according to claim 1, characterized in that: The transmission unit (24) includes a lowering screw (241) and a second power component (242). The lowering screw (241) is rotatably connected to the slide rail (21) and threaded through the two sliders (22). The second power component (242) is installed at one end of the slide rail (21) and connected to the lowering screw (241). The second power component (242) is used to drive the lowering screw (241) to rotate.

3. A cable splicing device for laying cables in cable trenches according to claim 1, characterized in that: The transmission unit (24) includes a first rack (243), two first gears (244), two second gears (245), and two second racks (246). The first rack (243) is connected to the slide rail (21) and its length direction is consistent with the sliding direction of the slider (22). The first gears (244) are rotatably connected to the slider (22) in a corresponding manner and mesh with the first rack (243). The second gears (245) are connected to the first gears (244) in a corresponding manner and mesh with the second racks (246) in a corresponding manner. The second racks (246) are embedded in the lowering rod (23) in a corresponding manner.

4. A cable splicing device for laying cables in cable trenches according to claim 3, characterized in that: A first corrugated pipe (231) is connected between the bottom surface of the slider (22) and the bottom end of the lowering rod (23). The first corrugated pipe (231) is sleeved on the lowering rod (23), and the connection between the first corrugated pipe (231) and the lowering rod (23) is in a sealed state.

5. A cable splicing device for laying cables in cable trenches according to claim 1, characterized in that: The clamping part (32) includes a connecting frame (321) and two clamping blocks (322). The connecting frame (321) is connected to the lowering rod (23), and the two clamping blocks (322) are slidably disposed on the connecting frame (321). The first power member (31) is connected to both clamping blocks (322) in a transmission manner. The first power member (31) is used to drive the two clamping blocks (322) to move closer to each other or further away from each other.

6. A cable splicing device for laying cables in cable trenches according to claim 5, characterized in that: The first power component (31) is connected to a transmission rod (33). The first power component (31) is used to drive the transmission rod (33) to rotate. The transmission rod (33) rotates through the lowering rod (23) and the connecting frame (321). The end of the transmission rod (33) away from the first power component (31) is connected to a first bevel gear (34). Both sides of the first bevel gear (34) are meshed with second bevel gears (35). Each second bevel gear (35) is connected to a transmission screw (36). The transmission screw (36) is rotatably connected to the connecting frame (321). The transmission screw (36) is threaded through the clamping block (322) one by one.

7. A cable splicing device for laying cables in cable trenches according to claim 6, characterized in that: The first bevel gear (34) and the two second bevel gears (35) are covered by a waterproof shell (37). The waterproof shell (37) is connected to the connecting frame (321). Each transmission screw (36) is fitted with two second bellows (38). The two second bellows (38) are located on both sides of the clamping block (322) and are connected to the clamping block (322). The end of the second bellows (38) closer to the waterproof shell (37) away from the clamping block (322) is connected to the waterproof shell (37), and the end of the second bellows (38) away from the waterproof shell (37) away from the clamping block (322) is connected to the connecting frame (321).

8. A cable splicing device for laying cables in cable trenches according to claim 1, characterized in that: The support assembly (1) also includes a support frame (14), with both ends of the support frame (14) supported on both banks of the cable trench. The docking space (11) is located in the middle of the support frame (14), and the lowering notch (12) is located at the bottom of the docking space (11). The stepping piece (13) includes two pedals (131) and two connecting rods (132). The two pedals (131) are located on both sides of the docking space (11) and are vertically and elastically slidably mounted on the support frame (14). The two connecting rods (132) are located at both ends of the docking space (11), and both ends of each connecting rod (132) are connected to the two pedals (131). The guard rods (4) are hinged on the support frame (14), and each pedal (131) is connected to the two guard rods (4) that are close to it. When the pedal (131) slides down, the pedal (131) drives the guard rods (4) to swing.

9. A cable splicing device for laying cables in cable trenches according to claim 8, characterized in that: The protective rod (4) is connected to a third gear (41) via its own hinge shaft. The third gear (41) meshes with a third rack (42), and the third rack (42) is connected to the pedal (131).

10. A cable splicing device for laying cables in cable trenches according to claim 8, characterized in that: The connecting rod (132) is provided with a locking groove (15), and a locking rod (17) is slidably disposed in the locking groove (15). The locking rod (17) is slidably disposed on the slide rail (21). A release spring (18) is provided between the locking rod (17) and the slide rail (21). The slider (22) is provided with a locking groove (221) for the locking rod (17) to be inserted. The top wall of the locking groove (15) is provided with a locking inclined surface (151). When the connecting rod (132) slides down with the pedal (131), the locking inclined surface (151) is used to push the locking rod (17) into the locking groove (221). When the connecting rod (132) slides up with the pedal (131), the release spring (18) is used to drive the locking rod (17) out of the locking groove (221).

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