A lightning protection type parallel groove clamp with branch drainage function

Abstract

This invention relates to the field of parallel trench clamps, specifically a lightning-proof parallel trench clamp with branching and current diversion function. It includes a lower housing and an upper housing, with both upper housings snapped together on the top of the lower housing for parallel overlap and conductive connection of two aluminum stranded wires of the same specification. A branch section is correspondingly assembled inside the lower and upper housings for secondary branching and current diversion after the secondary wire overlap. A mounting section is located at the bottom of the lower housing for adaptive adjustment of the clamp assembly structure to adapt to different mounting plates and installation conditions. The branch section includes a first splicing plate, a clamping body, a second splicing plate, and a gasket. A first groove is formed near the center of the top of the lower housing. This lightning-proof parallel trench clamp with branching and current diversion function, through the setting of a tenon-groove alignment pre-positioning structure, can achieve precise radial alignment of the upper and lower housings during the housing assembly process, effectively avoiding equipment assembly misalignment and offset problems.

Description

Technical Field

[0001] This invention relates to the field of parallel trench clamp technology, specifically a lightning protection parallel trench clamp with branching and diversion function. Background Technology

[0002] Traditional parallel trench clamps have a limited function, mostly only providing simple clamping and connection of two conductors, lacking independent branch current-draining clamping structures. They cannot simultaneously meet the integrated operational requirements of mainline parallel conduction and branch lightning protection current drainage. On-site branch wiring often employs external splicing, wrapped wiring, and auxiliary clamp conversion methods, resulting in cumbersome wiring, messy lines, and unstable splicing contacts. Long-term operation can easily lead to overheating, oxidation, loosening, and detachment, severely affecting the lightning protection performance and conductivity stability of the line. Furthermore, existing parallel trench clamps have fixed installation modes, only suitable for single-plane upright installation conditions, and cannot adapt to complex construction sites with limited space, lateral fixing, or installation of irregularly shaped plates. Their poor adaptability and insufficient flexibility in on-site installation and adjustment result in poor adaptability to various working conditions. Summary of the Invention

[0003] The present invention provides a lightning protection parallel groove clamp with branch diversion function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a lightning protection parallel trench clamp with branching and diversion function, comprising a lower housing and an upper housing, wherein the two upper housings are snapped together on the top of the lower housing to realize the parallel overlap and conductive connection of two aluminum stranded wires of the same specification; The branch section is installed inside the lower and upper housings to realize secondary branching and diversion operations after the sub-line is connected. The mounting section, located at the bottom of the lower housing, is used to adaptively adjust the wire clamp assembly structure to adapt to different mounting plates and installation conditions; The branch includes a first splicing plate, a clamping body, a second splicing plate, and a gasket. A first groove is provided at the top of the lower housing near the center position. The interior of the first groove is slidably adapted to the first splicing plate. The bottom of the first splicing plate is fixedly connected to the clamping body for clamping the wire. A second groove is provided at the bottom of the upper housing near the center position. The interior of the second groove is slidably adapted to the second splicing plate, and the top of the second splicing plate is fixedly connected to the gasket.

[0005] Preferably, the bottom end of the second splicing plate is provided with a T-shaped groove, and the top end of the first splicing plate is provided with a T-shaped tenon structure that matches the T-shaped groove, wherein the T-shaped tenon structure and the T-shaped groove are properly fitted together.

[0006] Preferably, both the lower and upper housings have through-hole threaded holes at their center. A first screw is threaded into the threaded hole, and a first plate is slidably fitted to the bottom end of the first screw. A nut is threadedly connected to the first screw at the rod position below the first plate. The nut is used to press and limit the first plate, thereby locking and fixing the upper and lower housings and pre-tightening the wire clamp in conjunction with the first screw.

[0007] Preferably, a limiting slide rod is fixedly installed in the first groove at the top of the lower housing, and a through hole is provided on the outer side of the first splicing plate. The limiting slide rod is slidably adapted to the through hole to guide and limit the sliding stroke of the first splicing plate. A first spring is fixedly connected to the bottom of the gasket, and the end of the first spring away from the gasket is fixedly connected to the inner wall of the second groove at the bottom of the upper housing.

[0008] Preferably, clamps are fixedly installed on adjacent sides of the two upper housings, and the clamps are used to tighten, hold and limit the branch lead wires.

[0009] Preferably, the mounting part includes an adjustable block, the center of which has a circular hole, the inner wall of which is rotatably assembled with a first screw, the outer side of which has a slot, and an adjustment component is mounted on the outer side of the adjustable block at the position corresponding to the slot.

[0010] Preferably, a first limiting piece is fixedly connected to both sides of the adjustable block, and the two first limiting pieces are symmetrically arranged with the first screw as the center. An arc-shaped groove is opened at the bottom of the lower housing, and the inner wall of the arc-shaped groove is slidably adapted to the first limiting piece. The bottom of the lower housing is fixedly connected to two second limiting plates on both sides. The two second limiting plates are symmetrically arranged with the first screw as the center, and are used to block and limit the extreme deflection position of the adjustable block.

[0011] Preferably, the bottom of the lower housing is provided with a flower-shaped groove, and a sliding plate is slidably adapted in the flower-shaped groove. A second spring is fixedly connected to the outer side of the sliding plate. The end of the second spring away from the sliding plate is fixedly connected to the inner wall of the flower-shaped groove to provide elastic pushing force for the sliding plate. A ball head is fixedly connected to the side of the sliding plate away from the second spring. The adjustable block has a spherical groove at the position corresponding to the ball head. The spherical groove and the ball head are elastically fitted together to realize the adaptive locking and self-locking of the adjustable block's deflection angle, ensuring that the structure is stable and does not loosen after adjustment.

[0012] Preferably, a fan-shaped groove is provided at the bottom of the adjustable block near the adjustment component; The adjustment assembly includes a bottom curved rod, on the outer side of which a vertical groove is provided. A slider is slidably fitted inside the vertical groove. The outer side of the slider is slidably fitted with the inner wall of the fan-shaped groove. The sliding guide and angle adjustment limit of the bottom curved rod are realized through the cooperation of the slider and the fan-shaped groove.

[0013] Preferably, the bottom curved rod extends vertically through the top of the adjustable block and to its bottom, and one side of the bottom end of the bottom curved rod has a wedge-shaped inclined surface structure; A handle is fixedly connected to the top of the bottom curved rod for easy manual rotation and adjustment. A ball bearing is fixedly connected to the outer side of the bottom curved rod. A collar is rotatably installed on the outer ring of the ball bearing. A third spring is fixedly connected to the bottom of the collar. The end of the third spring away from the collar is fixedly connected to the outer side of the adjustable block. The elastic preload of the third spring realizes the automatic reset and anti-loosening of the adjustment structure, thereby improving the adjustment accuracy and structural stability.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a tenon-groove alignment pre-positioning structure, precise radial alignment of the upper and lower shells can be achieved during the assembly process, effectively avoiding equipment misalignment and offset problems, greatly improving the overall assembly accuracy and efficiency, and providing a precise assembly foundation for subsequent line clamping and fixing and structural locking operations.

[0015] 2. The dual-path independent clamping conduction structure allows for simultaneous parallel overlapping conduction of the main aluminum stranded wire and independent clamping and diversion of branch conductors, ensuring clear division of labor and neat wiring. Combined with an external clamping and limiting structure, it effectively prevents branch conductors from loosening, shifting, or falling off, significantly improving the stability and standardization of line diversion operations.

[0016] 3. It has the ability to adapt to multiple working conditions and can flexibly switch between parallel front installation and vertical side installation modes according to the site space environment. It is suitable for complex working conditions such as conventional plane installation, space-constrained side installation and installation of irregular plate materials. The installation method is flexible and versatile, which greatly improves the site adaptability and versatility of the device.

[0017] 4. By setting up a mechanical rigid locking structure, the angle can be rigidly locked by direct extrusion and clamping under vertical side-mounted conditions, which completely solves the problems of adjustable block force back deviation, loosening and shaking, eliminates installation loosening caused by long-term line stress, and greatly improves the installation firmness and durability of the device under complex working conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of a lightning protection parallel trench clamp with branch diversion function according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the first plate and nut of the present invention.

[0020] Figure 3 This is a cross-sectional view of the grooved wire clamp of the present invention.

[0021] Figure 4 This is a cross-sectional structural diagram of the branch of the present invention.

[0022] Figure 5 This is a cross-sectional view of the second screw of the present invention.

[0023] Figure 6 This is a schematic diagram of the planar structure of the clamp in the branch section of the present invention.

[0024] Figure 7 This is a schematic diagram of the assembly part of the present invention.

[0025] Figure 8 This is a longitudinal section diagram of the mounting part of the present invention.

[0026] Figure 9 This is an enlarged structural schematic diagram of the ball head in the mounting part of the present invention.

[0027] Figure 10 This is a schematic diagram of the structure of the limiting piece in the mounting part of the present invention.

[0028] Figure 11 This is a schematic diagram of the structure of the adjustment component of the present invention.

[0029] Figure 12 This is a schematic diagram of the displacement structure of the bottom crank rod in the adjustment component of the present invention.

[0030] Figure 13 This is a schematic diagram of the structure of the second plate of the present invention.

[0031] In the diagram: 1. Lower housing; 2. Upper housing; 3. Branch section; 4. First screw; 5. Assembly section; 6. First plate; 7. Nut; 41. Second screw; 61. Second plate; 31. Limiting rod; 32. First splicing plate; 33. Clamping body; 34. Second splicing plate; 35. Washer; 36. First spring; 37. Clamp; 51. Adjustable block; 52. Slot; 53. Adjustment component; 54. First limiting piece; 55. Second limiting piece; 56. Floral groove; 57. Slide plate; 58. Second spring; 59. Ball head; 50. Sector groove; 531. Bottom crank rod; 532. Ball bearing; 533. Handle; 534. Third spring; 535. Sliding bar; 536. Collar. Detailed Implementation

[0032] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 13 The present invention provides a technical solution: Example 1: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the two sets of upper housings 2 are independently snapped into the snap-fit ​​grooves on the front and rear sides of the top of the lower housing 1, with a snap-fit ​​gap of 0.1mm. This allows two aluminum stranded wires of the same specification to be parallel and overlapped, forming a double main wire clamping and conducting cavity. The lower housing 1 and the upper housing 2 are coaxially connected with a through-hole precision threaded hole, using a standard metric thread with an M12 thread precision. The first screw 4 is vertically threaded through the threaded hole, penetrating the upper and lower housings to achieve the overall locking foundation of the housings. The bottom end of the first screw 4 slides and adapts to the through hole of the first plate 6. The threaded section at the bottom end of the first screw 4 is fitted with a nut 7, which presses and limits the first plate 6 through the end face of the nut 7. Combined with the threaded locking force of the first screw 4, the upper and lower housings are rigidly locked and fixed, and the wire clamping is pre-tightened, preventing the housings from loosening and the wires from slipping.

[0034] Two first grooves are formed at the top of the lower housing 1 near the center. The grooves are L-shaped sliding grooves, and a limiting rod 31 is vertically fixed inside the groove. The limiting rod 31 is made of solid round steel with a smooth and wear-resistant surface. A through hole is formed on the outer side of the first splicing plate 32. The through hole is precisely fitted with the limiting rod 31 with a clearance of 0.03mm, which can strictly limit the first splicing plate 32 to slide vertically only along the axis of the limiting rod 31, realizing sliding guidance and stroke limitation. The bottom of the first splicing plate 32 is integrally fixedly connected to the clamping body 33. The clamping body 33 moves vertically synchronously with the first splicing plate 32, serving as the core clamping component for the branch wire.

[0035] At corresponding positions on adjacent sidewalls of the upper housing 2 and the lower housing 1, a first arc-inducing angle and a second arc-inducing angle are fixedly installed, respectively. These two angles are arranged opposite each other and spaced a predetermined distance (preferably 2mm-5mm) to form an open air discharge gap. Both the first and second arc-inducing angles are made of copper-tungsten alloy material resistant to arc erosion. When a lightning current overvoltage enters the branch line, this air gap preferentially breaks down and discharges, diverting the arc energy to the gap for ablation and dissipation, thereby protecting the clamping body 33 from arc burns at the conductor contact surface and significantly reducing the risk of lightning-induced line breakage. The arc-inducing discharge gap, in conjunction with the low-impedance discharge channel, constitutes an integrated lightning protection system of "current diversion-discharge-arc extinguishing".

[0036] Two second grooves are formed at the bottom of the upper housing 2 near the center, corresponding to the positions of the first grooves. The second grooves are vertically coaxial with the first grooves. The second grooves are vertically slidingly adapted to the second splicing plate 34 with a sliding gap of 0.03mm, allowing for smooth and unobstructed sliding. The top of the second splicing plate 34 is rigidly fixedly connected to the gasket 35. The bottom of the gasket 35 is fixedly connected to the first spring 36, which is vertically arranged and fixedly connected to the inner wall of the second groove. Under normal conditions, it maintains a slight pre-compression state, providing elastic restoring force and pre-tightening buffer force for the second splicing plate 34, the first splicing plate 32, and the clamping body 33 as a whole. The pre-tightening force of the first spring 36 is less than the thrust of the second screw 41, and the first spring 36 is compressed after clamping.

[0037] The bottom of the second splicing plate 34 is integrally formed with a T-slot, and the top of the first splicing plate 32 is integrally formed with a matching T-shaped tenon structure. The T-shaped tenon and the T-slot fit perfectly together with a gap of ≤0.05mm. The tenon and slot fit is secure and achieves rigid connection between the upper and lower splicing plates. This allows the upper clamping force and tension to be completely transferred to the bottom clamping body 33, ensuring uniform clamping force. The two sets of upper shells 2 are symmetrically fixedly installed with clamps 37 on their adjacent inner sidewalls. The openings of the clamps 37 face the center gap of the shells, which can elastically tighten and clamp the branch wires passing through the shell gaps, thereby limiting and fixing the branch wires and preventing wire deviation, loosening, or falling off.

[0038] In some embodiments: the first screw 4 is replaced with the second screw 41. The first screw 4 can only lock and fix the lower housing 1 and the upper housing 2, while the second screw 41, while locking and fixing the upper housing 2 and the lower housing 1, will exert downward pressure on the gasket 35 at the unthreaded outer part and the larger inner diameter part of the second screw 41. This causes the gasket 35 to drive the second splicing plate 34 to move down and compress the first spring 36. Then, through the tenon and slot fitting structure, the first splicing plate 32 and the bottom clamping body 33 move down synchronously. Finally, the clamping body 33 fixed at the bottom of the first splicing plate 32 moves down and forms a clamping posture. The clamping body 33, which moves down to the position, independently clamps and presses the branch diversion wire to realize the branch diversion operation of the line.

[0039] Example 2: Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the adjustable block 51 of the mounting part 5 is arranged at the bottom of the lower housing 1. A vertical circular hole is opened in the center of the adjustable block 51. The inside of the circular hole is fitted with the outer wall of the first screw 4 with a gap. At the same time, it can rotate around the first screw 4, so that the adjustable block 51 can freely deflect and adjust the angle around the first screw 4 while ensuring coaxiality accuracy. A through slot 52 is opened on the outer side of the adjustable block 51. The slot 52 is a long strip adjustment mounting slot for external bolt alignment and locking, which can accommodate different mounting hole position deviations.

[0040] The adjustable block 51 has two first limiting plates 54 fixed on its left and right sides. The two sets of first limiting plates 54 are symmetrically arranged with the first screw 4 as the center. An arc-shaped groove is opened at the corresponding position on the bottom of the lower housing 1. The center of the arc-shaped groove coincides with the center of the first screw 4. The inner wall of the arc-shaped groove slides and adapts to the first limiting plate 54. The sliding arc corresponds to the 0-90° adjustment range, realizing full-range guidance for angle adjustment. The lower housing 1 has two second limiting plates 55 fixed on its bottom sides. They are also symmetrically arranged. The second limiting plates 55 are rigid blocking structures that can mechanically limit the adjustable block 51 to a 90° extreme deflection position to prevent excessive deflection and structural interference.

[0041] The contact surface of the second limiting piece 55 is provided with a rubber buffer pad with a thickness of 2mm. When the adjustable block 51 is rotated to 90°, the side of the adjustable block 51 contacts the buffer pad to achieve flexible limiting.

[0042] A floral groove 56 is centrally located at the bottom of the lower housing 1. A vertical sliding plate 57 is fitted inside the floral groove 56 with a sliding gap of 0.05mm. A second spring 58 is fixedly connected to the outer end face of the sliding plate 57, and the other end of the second spring 58 is fixedly connected to the inner wall of the floral groove 56. Normally, the spring is in a pre-tensioned extended state, providing continuous elastic pushing force to the sliding plate 57. A ball head 59 is integrally fixed to the outer end of the sliding plate 57. The ball head 59 is a highly wear-resistant hemispherical structure. A spherical groove is formed on the top of the adjustable block 51 corresponding to the movement trajectory of the ball head 59. The spherical groove and the ball head 59 are elastically fitted together, enabling the adjustable block 51 to self-adaptively position and lock itself, maintaining a constant angle without loosening under no external force.

[0043] The engagement depth of the ball head 59 with the spherical groove is 2mm, and the preload of the second spring 58 is 5N, which can provide a positioning torque of about 0.5 Newton-meters. When the external torque exceeds 0.5 Newton-meters, the ball head 59 is forced to exit the spherical groove.

[0044] Example 3: Figure 11 , Figure 12 and Figure 13As shown, a fan-shaped groove 50 is provided at the bottom front side of the adjustable block 51. The fan-shaped groove 50 is an arc-shaped guide groove. The bottom curved rod 531 of the adjusting component 53 vertically penetrates the body of the adjustable block 51. A long vertical groove is provided on the outer side of the rod. A sliding strip 535 is slidably fitted inside the vertical groove. The outer side of the sliding strip 535 is slidably fitted with the inner wall of the fan-shaped groove 50. It can slide along the arc trajectory of the fan-shaped groove 50 to guide and limit the rotation angle of the bottom curved rod 531, preventing rotational deviation and structural jamming.

[0045] The bottom curved rod 531 has a smooth wedge-shaped inclined surface structure on one side of its bottom end, and a vertical cylindrical abutment structure on the other sides, which are respectively adapted to the fitting requirements of the reset state and the locked state. The bottom curved rod 531 has a horizontally fixed handle 533 at the top, which has a non-slip structure and is easy to manually pull down and rotate for adjustment. The bottom curved rod 531 has a fixed nested ball bearing 532 in the middle of its body, and the outer ring of the ball bearing 532 rotates and is sleeved with a collar 536, which can rotate freely relative to the rod body. The bottom of the collar 536 has a vertically fixed third spring 534, and the bottom end of the third spring 534 is fixedly connected to the outer end face of the adjustable block 51. Under normal conditions, it is in a pre-compressed and energy-storing state, which can automatically drive the collar 536, the ball bearing 532 and the bottom curved rod 531 to move as a whole, realizing automatic compression reset and anti-loosening limit of the structure, which greatly improves the adjustment accuracy and structural stability.

[0046] In some embodiments, the first plate 6 can be replaced with the second plate 61, wherein the first plate 6 is a rectangular plate structure, and the second plate 61 is a rectangular plate structure with square plates welded on both sides. The square plates in the second plate 61 have assembly holes at the positions opposite the slot 52. The second plate 61 is then fitted and assembled to the bottom of the adjustable block 51, so that the slot 52 on the outside of the adjustable block 51 is aligned and coincident with the assembly holes of the second plate 61. The external bolts pass through the slot 52 and lock and fix the second plate 61, forming a double locking structure with the first screw 4 and nut 7, which is suitable for complex working conditions such as side installation and installation of irregularly shaped plates.

[0047] The working principle of this invention is as follows: In the initial stage of equipment assembly, the lower housing 1 and the upper housing 2 are aligned and assembled first. A first splicing plate 32 is slidably assembled inside the first groove at the top of the lower housing 1, and a second splicing plate 34 is slidably assembled inside the second groove at the bottom of the upper housing 2. During the assembly process, the T-shaped groove at the bottom of the second splicing plate 34 and the T-shaped tenon at the top of the first splicing plate 32 are precisely engaged and connected, realizing the radial alignment and pre-positioning of the upper and lower housings, ensuring the assembly accuracy, and avoiding assembly misalignment.

[0048] After pre-alignment, the first screw 4 is inserted through the central threaded hole of the upper and lower housings, so that the bottom end of the first screw 4 passes through the lower housing 1 and slides with the first plate 6. Then, the nut 7 is tightened to lock and fix the upper housing 2 and the lower housing 1 together with the first screw 4, and the entire wire clamp body is pre-fixed on the first plate 6.

[0049] When the second screw 41 is used to assemble the upper housing 2 and the lower housing 1, the unthreaded part of the second screw 41 with a large inner diameter will exert downward pressure on the gasket 35, causing the gasket 35 to move the second splicing plate 34 down and compress the first spring 36. Then, through the tenon and groove interlocking structure, the first splicing plate 32 and the bottom clamping body 33 move down synchronously, and finally the clamping body 33 fixed at the bottom of the first splicing plate 32 moves down and forms a clamping posture.

[0050] At this point, the clamp forms a dual-path clamping and conducting structure: the two main aluminum stranded wires are clamped and fixed inside the toothed main clamping holes enclosed by the upper and lower shells, achieving parallel overlap and stable conduction of the main wires; at the same time, the clamping body 33, which moves down to its position, independently clamps and presses the branch guide wires, realizing the branch guide operation. Clamps 37 are installed on adjacent sides of the two upper shells 2. Branch wires can be clamped and fixed in the double shells according to actual wiring requirements, or they can pass through the gap between the two shells and be tightened and limited by the clamps 37, effectively preventing the branch wires from loosening, shifting, or falling off, significantly improving the stability and standardization of the branch guide wiring.

[0051] This device achieves multi-condition adaptive installation and adjustment through the bottom mounting part 5, which can adapt to the fixing requirements of different panels and different installation structures. It is mainly divided into two self-locking conditions: parallel upright mounting and vertical side mounting.

[0052] The first type is the parallel upright installation: During normal installation, the adjustable block 51 is adjusted to be parallel to the bottom surface of the lower housing 1. During the adjustment process as the first screw 4 rotates, the ball head 59 inside the bottom spherical groove and the floral groove 56 elastically engages for positioning. Under the pre-tightening action of the second spring 58, the ball head 59 engages with the spherical groove, achieving angle self-locking of the adjustable block 51 and preventing loosening or deflection. Simultaneously, the first limiting plates 54 on both sides slide and guide along the arc-shaped groove at the bottom of the lower housing 1, forming a limit stop with the second limiting plate 55, ensuring precise and stable adjustment. At this point, the bottom surface of the adjustable block 51 is flat and adheres to the first plate 6; tightening with the nut 7 completes the normal flat upright installation operation.

[0053] The second type is the vertical side-mounted configuration: When the installation space is limited and lateral vertical fixation is required, the adjustable block 51 can be adjusted by a 90° deflection. The adjustable block 51 is manually rotated to deflect vertically relative to the bottom surface of the lower housing 1. During the deflection, the adjustable block 51 presses against the ball head 59, forcing the slide plate 57 to compress the second spring 58 and retract into the flower-shaped groove 56, releasing the engagement limit and ensuring smooth rotation of the adjustable block 51. When the adjustable block 51 rotates to its 90° limit position, the second limit piece 55 blocks and limits the rotation, preventing excessive deflection.

[0054] After the angle is adjusted to the correct position, the adjustment component 53 is activated to complete the mechanical locking. The operator holds the handle 533 and pulls down and rotates the bottom crank rod 531, causing the slide bar 535 to slide and turn along the fan-shaped groove 50. The elastic preload of the third spring 534 pushes the collar 536, ball bearing 532 and bottom crank rod 531 to move as a whole, so that the bottom end of the bottom crank rod 531 extends out and forms a pressing and tight fit with the outer wall of the lower housing 1. The mechanical rigid locking of the adjustable block 51 is achieved by the angle cooperation between the straight surfaces, completely eliminating the problems of loosening under force and angle deviation.

[0055] Similarly, when the adjustable block 51 needs to be rotated to a state parallel to the bottom surface of the lower housing 1, the handle 533 and the bottom crank rod 531 are rotated to the initial state. At this time, the wedge-shaped inclined surface at the bottom of the bottom crank rod 531 contacts the vertical surface of the lower housing 1. By squeezing, the bottom crank rod 531 moves upward again and is at the same height as the lower housing 1.

[0056] After locking, the second plate 61 is fitted and assembled to the bottom of the adjustable block 51, so that the outer groove 52 of the adjustable block 51 is aligned and coincident with the assembly hole of the second plate 61. The external bolts are used to pass through the groove 52 and lock and fix it to the plate hole. Together with the first screw 4 and nut 7, a double locking structure is formed, which is suitable for complex working conditions such as side installation and installation of irregular plate.

[0057] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made by those skilled in the art based on the above concepts without creative effort shall fall within the scope of protection of the present invention.

Claims

1. A lightning protection parallel trench clamp with branching and diversion function, characterized in that, include: The assembly includes a lower housing and an upper housing, with at least two upper housings, each of which is engaged with the lower housing. The branch section is installed inside the lower and upper housings to realize secondary branching and diversion operations after the sub-line is connected. The mounting section, located at the bottom of the lower housing, is used to adaptively adjust the wire clamp assembly structure to adapt to different mounting plates and installation conditions; The branch includes a first splicing plate, a clamping body, a second splicing plate, and a gasket. A first groove is provided at the top of the lower housing near the center position. The interior of the first groove is slidably adapted to the first splicing plate. The bottom of the first splicing plate is fixedly connected to the clamping body for clamping the wire. A second groove is provided at the bottom of the upper housing near the center position. The interior of the second groove is slidably adapted to the second splicing plate, and the top of the second splicing plate is fixedly connected to the gasket.

2. A lightning protection parallel trench clamp with branching and diversion function according to claim 1, characterized in that: The bottom end of the second splicing plate is provided with a T-shaped groove, and the top end of the first splicing plate is provided with a T-shaped tenon structure that matches the T-shaped groove. The T-shaped tenon structure fits into the T-shaped groove.

3. A lightning protection parallel trench clamp with branching and diversion function according to claim 1, characterized in that: Both the lower and upper housings have through-hole threaded holes at their center. A first screw is threaded into the threaded hole. A first plate is slidably fitted to the bottom end of the first screw. A nut is threadedly connected to the first screw at the rod position below the first plate. The nut is used to press and limit the first plate, and together with the first screw, the upper and lower housings are locked and fixed, and the wire clamp is pre-tightened.

4. A lightning protection parallel trench clamp with branching and diversion function according to claim 2, characterized in that: A limiting slide rod is fixedly installed in the first groove at the top of the lower housing. A through hole is provided on the outer side of the first splicing plate. The limiting slide rod is slidably adapted to the through hole to guide and limit the sliding stroke of the first splicing plate. A first spring is fixedly connected to the bottom of the gasket, and the end of the first spring away from the gasket is fixedly connected to the inner wall of the second groove at the bottom of the upper housing.

5. A lightning protection parallel trench clamp with branching and diversion function according to claim 1, characterized in that: Each of the two upper housings has a clamp fixedly installed on an adjacent side. The clamp is used to tighten, hold and limit the branch lead wires.

6. A lightning protection parallel trench clamp with branching and diversion function according to claim 3, characterized in that: The mounting part includes an adjustable block with a circular hole at its center. The inner wall of the circular hole is rotatably assembled with a first screw. A slot is provided on the outer side of the adjustable block, and an adjustment component is mounted on the outer side of the adjustable block at the position corresponding to the slot.

7. A lightning protection parallel trench clamp with branching and diversion function according to claim 6, characterized in that: The adjustable block is fixedly connected to two sides with first limiting plates. The two first limiting plates are symmetrically arranged with the first screw as the center. The bottom of the lower housing is provided with an arc-shaped groove, and the inner wall of the arc-shaped groove is slidably adapted to the first limiting plate. The bottom of the lower housing is fixedly connected to two second limiting plates on both sides. The two second limiting plates are symmetrically arranged with the first screw as the center, and are used to block and limit the extreme deflection position of the adjustable block.

8. A lightning protection parallel trench clamp with branching and diversion function according to claim 6, characterized in that: The bottom of the lower housing is provided with a flower-shaped groove, and a sliding plate is slidably adapted in the flower-shaped groove. A second spring is fixedly connected to the outer side of the sliding plate. The end of the second spring away from the sliding plate is fixedly connected to the inner wall of the flower-shaped groove to provide elastic pushing force for the sliding plate. A ball head is fixedly connected to the side of the sliding plate away from the second spring. The adjustable block has a spherical groove at the position corresponding to the ball head, and the spherical groove is elastically fitted to the ball head.

9. A lightning protection parallel trench clamp with branching and diversion function according to claim 6, characterized in that: The adjustable block has a fan-shaped groove at its bottom near the adjustment component; The adjustment assembly includes a bottom curved rod, on the outer side of which a vertical groove is provided. A slide bar is slidably fitted inside the vertical groove, and the outer side of the slide bar is slidably fitted with the inner wall of the fan-shaped groove.

10. A lightning protection parallel trench clamp with branching and diversion function according to claim 9, characterized in that: The bottom curved rod extends vertically through the top of the adjustable block and to its bottom, and one side of the bottom end of the bottom curved rod has a wedge-shaped inclined surface structure; A handle is fixedly connected to the top of the bottom curved rod, a ball bearing is fixedly connected to the outer side of the bottom curved rod, a collar is rotatably installed on the outer ring of the ball bearing, a third spring is fixedly connected to the bottom of the collar, and the end of the third spring away from the collar is fixedly connected to the outer side of the adjustable block.

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