Pre-assembled suspension clamp

Abstract

The application discloses a pre-stranded suspension clamp convenient to install and replace, and belongs to the technical field of overhead transmission lines, which comprises two mutually-opposed suspension clamping plates, a first adapter head clamped and connected to the inner sides of the two suspension clamping plates, a first combined hole being formed in the end face of the first adapter head, and the first adapter head being fixedly connected with the two suspension clamping plates through a second bolt, a combined seat being detachably connected to the first adapter head, and a first threaded cylinder being sleeved on the top of the combined seat, and a metal chain being embedded in the inner side of the first threaded cylinder, wherein the installation operation is convenient and labor-saving, the first threaded cylinder and the second threaded cylinder are designed to be initially separated, the metal chain connecting the first threaded cylinder and the second threaded cylinder is kept relaxed at the initial stage of installation, the second adapter head is connected with the electric pole hoop, the operation is completely independent, the gravity of the cable does not need to be overcome, and the labor intensity and operation difficulty of the installation personnel are remarkably reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of overhead transmission lines, and particularly relates to a pre-stranded suspension clamp convenient to install and replace. BACKGROUND

[0002] As a key fitting in the power line, the pre-stranded suspension clamp can evenly distribute the mechanical stress of the optical cable or conductor, effectively improve the tensile strength and long-term operation reliability of the optical cable, and has become an indispensable component in the installation of ADSS optical cable, OPGW optical cable and various types of conductor straight-line tower.

[0003] Under the background of the development of smart grid, this technology further embodies its important adaptive value. Smart grid emphasizes the stability, sensing ability and whole life cycle management of the power transmission system. The pre-stranded suspension clamp not only protects the optical cable inside from damage caused by stress concentration, but also enhances the mechanical properties of the line in complex environments, which is conducive to ensuring the continuity and reliability of power grid state monitoring and data communication. Its uniform stress distribution characteristics also meet the fine requirements of smart grid for safe operation of the line and prolonging the service life of the equipment.

[0004] Some invention patents in the technical field of overhead transmission lines are disclosed in the prior art. The invention patent with the publication number CN109088379A discloses a pre-stranded suspension clamp, which comprises a clamp body and a hanging plate. The clamp body and the hanging plate are separately arranged. The hanging plate is U-shaped. Corresponding connecting holes are arranged on the upper two parallel plates of the hanging plate. A fastening rod is arranged to pass through the connecting holes. An extension pipe is arranged outside the connecting hole at one end. The extension pipe is provided with internal threads and external threads. The internal threads are arranged correspondingly to the fastening rod. The fastening rod comprises a square thread arranged at the front end and a circular thread arranged at the rear end of the square thread. The size of the square thread is smaller than that of the circular thread. A cover is arranged correspondingly to the extension pipe. The cover is provided with an inner hole. A large thread segment corresponding to the external thread is arranged at the front end of the inner hole. A small thread segment corresponding to the square thread is arranged at the rear end of the large thread segment. This technical solution provides a double-hanging-point pre-stranded suspension clamp with reasonable structure and improved stability of the suspension clamp. However, there are still some deficiencies in the process of using this technical solution. During the installation process, the pre-stranded suspension clamp needs to be connected and fixed with the pole clamp due to the large weight of the cable. Usually, two operators need to operate cooperatively: one holds the clamp, and the other tightens the bolt with a wrench. Due to the limitation of high-altitude operation space, such installation operation is often difficult. In addition, when replacing the clamp, the cable still cannot be smoothly detached after the bolt is loosened due to the weight of the cable, which further increases the complexity of the maintenance operation.

[0005] Based on this, the present application designs a pre-stranded suspension clamp convenient to install and replace to solve the above problems. SUMMARY

[0006] The present application aims at solving the problem that the pre-stranded suspension clamp needs to be connected and fixed with the pole clamp during installation, and usually two operators need to operate cooperatively: one holds the clamp, and the other tightens the bolt with a wrench, which is difficult due to the limited space for high-altitude operation, and further increases the complexity of maintenance operation when the clamp is replaced.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a pre-stranded suspension clamp convenient to install and replace, comprising: two mutually opposite suspension clamping plates.

[0008] A first adapter is clamped and connected to the inner side of the two suspension clamping plates, and the end face of the first adapter is provided with a first combined hole, and the first adapter is fixedly connected to the two suspension clamping plates through a second bolt.

[0009] A combined seat is detachably connected to the first adapter.

[0010] A first threaded cylinder is sleeved on the top of the combined seat, and a metal chain is embedded in the inner side of the first threaded cylinder, and one end of the metal chain is fixedly connected to the top of the combined seat.

[0011] A second threaded cylinder is arranged above the first threaded cylinder, and the other end of the metal chain is fixedly connected to the top of the inner side of the second threaded cylinder.

[0012] And a second adapter, a second threaded groove is formed in the top of the second threaded cylinder, and the second adapter is connected in the second threaded groove through thread cooperation.

[0013] Further description of the above technical scheme: the inner side of the two suspension clamping plates is clamped and connected with a first shielding ring and a second shielding ring, the lower edge of the first shielding ring and the second shielding ring is hinged through a pin shaft, and the upper edge of the two is detachably fixedly connected through a first bolt, forming an openable and closable ring structure.

[0014] The outer side surface of the first shielding ring and the second shielding ring, which are away from each other, is fixedly provided with a rivet, and the opposite inner side surface of the two suspension clamping plates is provided with a rivet hole corresponding to the position of the rivet, and the first shielding ring and the second shielding ring are respectively inserted and fixed in the rivet hole of the suspension clamping plate through the rivet thereon, realizing the positioning and connection of the first shielding ring, the second shielding ring and the suspension clamping plate.

[0015] As a further description of the above technical solution: the inner side axis of the first shielding ring and the second shielding ring is correspondingly provided with two semicircular ring-shaped rubber pads, and the two rubber pads are fixed together by winding with insulating tape to form a complete cylindrical insulating lining.

[0016] The annular gap formed between the first shielding ring, the second shielding ring and the two rubber pads is circumferentially uniformly provided with a plurality of pre-stranded wires for compressing and fixing the conductive wire.

[0017] As a further description of the above technical solution: the top of the first adapter is provided with a first insertion slot, and the bottom of the combination seat is provided with a second insertion slot corresponding to the position of the first insertion slot, and the first adapter and the combination seat are positioned by interlocking and inserting the first insertion slot and the second insertion slot.

[0018] The end face of the inner side of the first insertion slot is fixedly provided with a plurality of combination shafts, and the corresponding end face of the inner side of the second insertion slot is provided with a plurality of insertion grooves matching in number and position, and the plurality of combination shafts are respectively inserted into the plurality of insertion grooves, and the bottom of each insertion groove is provided with a supporting spring, one end of the supporting spring is supported on the bottom of the insertion groove, and the other end is elastically supported on the end face of the insertion end of the corresponding combination shaft.

[0019] As a further description of the above technical solution: the insertion end of the combination shaft is provided with a first threaded groove in the center, and the bottom of the insertion groove is provided with a through connecting hole corresponding to the first threaded groove, and after the first adapter and the combination seat are preliminarily clamped, the third bolt is sequentially inserted through the connecting hole from one side of the combination seat, and is screwed with the first threaded groove at the end of the combination shaft, to realize the final fastening connection of the two.

[0020] As a further description of the above technical solution: the first threaded cylinder is provided with a reinforcing sleeve outside, and the outer wall of the sleeve is in a regular polygonal structure, and an insertion slot is formed on each side plane of the sleeve, and the depth of the insertion slot is greater than the width of the slot.

[0021] As a further description of the above technical solution: the top of the first threaded cylinder is provided with a plurality of limiting grooves in a ring array, and the outer wall of the second threaded cylinder is provided with a plurality of limiting holes in a ring array, and a limiting bolt is inserted through two limiting holes and corresponding two limiting grooves, and a first nut is threadedly connected to the limiting bolt.

[0022] The top end face of the first threaded cylinder is provided with a plurality of limiting grooves in an annular array along the circumference thereof, and the lower part of the outer side wall of the second threaded cylinder is correspondingly provided with a plurality of limiting holes in an annular array, and the first threaded cylinder and the second threaded cylinder are circumferentially limited by the following manner: one limiting bolt simultaneously penetrates one limiting hole and the corresponding limiting groove below the limiting hole, and a first nut is threadedly connected to the end of the limiting bolt to lock the two.

[0023] As a further description of the above technical solution: the inner side of the second adapter is fixedly embedded with an electric pole hoop, the electric pole hoop has opposite first and second ends, the first and second ends are connected by penetrating the fifth bolt, and the electric pole hoop is locked by the third nut screwed on the fifth bolt to adjust and fix the clamping diameter of the electric pole hoop.

[0024] The second adapter and the second end of the electric pole hoop are connected by the fourth bolt, the second nut is screwed on the fourth bolt, and the check pin is arranged on the threaded part of the second nut and the fourth bolt to prevent the second nut from loosening under vibration.

[0025] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are: 1. In the present application, the installation operation is labor-saving, and by designing the first threaded cylinder and the second threaded cylinder in an initially separated state, the metal chain connecting the two is kept relaxed at the initial installation stage, which makes the connection of the second adapter and the electric pole hoop completely independent, without the need to overcome the weight of the cable, significantly reducing the labor intensity and operation difficulty of the installation personnel.

[0026] 2. In the present application, the tensioning process is stable and controllable, and the connection is reliable. The first threaded cylinder and the second threaded cylinder are threadedly screwed to finally tension, and by rotating the first threaded cylinder, the cable suspension point can be accurately and stably lifted, the metal chain is gradually tensioned, the controllable transition from initial flexible connection to final rigid reliable connection is realized, and the stability and safety of the wire clamp during operation are ensured.

[0027] 3. In the present application, the installation fault tolerance and position fine adjustment are provided, the first adapter and the combined seat are connected by the adjustable connection design of the insertion groove and the combined shaft, when the initial positioning of the rubber pad and other components has deviation, the third bolt can be adjusted to make the first adapter and the combined seat produce a small amount of relative displacement along the cable axis, which provides installation fault tolerance space, effectively compensates for the alignment error, and ensures that the components can be accurately matched when finally fastened.

[0028] 4. In the application, the operation mode is flexible, suitable for different working environments, a regular polygon sleeve with a side plane slot is sleeved outside the first threaded cylinder, which provides two driving modes: standard wrench can be used to clamp the outer wall of the sleeve to rotate, or a screwdriver or other tool can be inserted into the slot to twist, which well adapts to different space working conditions such as narrow and open space, and improves the convenience of installation.

[0029] 5. In the application, the maintenance is convenient, and the replaceability is strong, the key stress and connection parts and the main body structure are connected in a detachable modular manner, when the parts are worn or damaged, local replacement can be carried out quickly without disassembling the whole clamp or replacing the cable, which greatly reduces the maintenance cost and time. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The overall structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application.

[0031] Figure 2 The overall structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application. Figure 1 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application.

[0032] Figure 3 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application.

[0033] Figure 4 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application.

[0034] Figure 5 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application.

[0035] Figure 6 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application. Figure 5 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application.

[0036] Figure 7 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application.

[0037] Figure 8 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application.

[0038] Figure 9 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application. Figure 8 The structure schematic diagram of the pre-stranded suspension clamp convenient to install and replace is proposed in the application.

[0039] Figure 10 This is a cross-sectional structural diagram of the combined seat in a pre-twisted suspension clamp that is easy to install and replace according to the present invention.

[0040] Legend: 1. Rubber gasket; 2. Pre-stretched wire; 3. First shielding ring; 4. Second shielding ring; 5. Pin; 6. First bolt; 7. Rivet; 8. Suspension clamp; 9. Rivet hole; 10. First adapter; 11. Second bolt; 12. First combination hole; 13. First insertion groove; 14. Combination shaft; 15. First threaded groove; 16. Third bolt; 17. Combination seat; 18. Insertion groove; 19. Second insertion groove; 20. Support spring; 21. First threaded cylinder; 22. Sleeve; 23. Slot; 24. Limiting groove; 25. Metal chain; 26. Limiting hole; 27. Limiting bolt; 28. First nut; 29. ​​Second threaded cylinder; 30. Second threaded groove; 31. Second adapter; 32. Pole clamp; 33. Fourth bolt; 34. Second nut; 35. Pin; 36. Fifth bolt; 37. Third nut. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see the appendix Figure 1 - Appendix Figure 10 The present invention provides a technical solution: a pre-twisted suspension clamp that is easy to install and replace, comprising: two opposing suspension clamp plates 8.

[0043] The first adapter 10 is clamped and connected to the inner side of the two suspension plates 8. The end face of the first adapter 10 is provided with a first combination hole 12, and is fixedly connected to the two suspension plates 8 by a second bolt 11.

[0044] The combination base 17 is detachably connected to the first adapter 10.

[0045] A first threaded cylinder 21 is sleeved on the top of the assembly base 17. A metal chain 25 is embedded on the inner side of the first threaded cylinder 21, and one end of the metal chain 25 is fixedly connected to the top of the assembly base 17.

[0046] The second threaded cylinder 29 is positioned above the first threaded cylinder 21, and the other end of the metal chain 25 is fixedly connected to the top of the inner side of the second threaded cylinder 29.

[0047] And the second adapter 31, the top of the second threaded cylinder 29 is provided with a second threaded groove 30, and the second adapter 31 is connected in the second threaded groove 30 by thread cooperation.

[0048] Specifically, the inner sides of the two overhanging clamping plates 8 are clamped and connected with the first shielding ring 3 and the second shielding ring 4, the lower edges of the first shielding ring 3 and the second shielding ring 4 are hinged by the pin shaft 5, and the upper edges of the first shielding ring 3 and the second shielding ring 4 are detachably fixed by the first bolt 6, forming an openable and closable ring structure.

[0049] The outer sides of the first shielding ring 3 and the second shielding ring 4, which are away from each other, are fixedly provided with rivets 7, and the opposite inner sides of the two overhanging clamping plates 8 are provided with rivet holes 9 corresponding to the positions of the rivets 7, the first shielding ring 3 and the second shielding ring 4 are respectively inserted into and fixed in the rivet holes 9 of the overhanging clamping plates 8 through the rivets 7 thereon, realizing the positioning and connection of the first shielding ring 3, the second shielding ring 4 and the overhanging clamping plates 8, and the inner shaft centers of the first shielding ring 3 and the second shielding ring 4 are correspondingly provided with two semicircular rubber pads 1, which are fixed by winding with insulating tape after being closed, and together form a complete cylindrical insulating lining.

[0050] A plurality of pre-stranded wires 2 are uniformly arranged in the annular gap between the first shielding ring 3, the second shielding ring 4 and the two rubber pads 1 in a circumferential direction, for compressing and fixing the wires.

[0051] The embodiment is specifically: the two rubber pads 1 are connected in a closed manner at the cable suspension position, then the two rubber pads 1 are fixed by winding with insulating tape, then the plurality of pre-stranded wires 2 are wound and connected on the two rubber pads 1 and the cable, and finally the first shielding ring 3 and the second shielding ring 4 hinged by the pin shaft 5 are used to clamp the pre-stranded wires 2 in a clamped manner, and the position corresponding to the rubber pad 1 is fastened by operating the wrench to twist the first bolt 6.

[0052] Specifically, the top of the first adapter 10 is provided with a first insertion slot 13, the bottom of the combination seat 17 is provided with a second insertion slot 19 corresponding to the position of the first insertion slot 13, and the first adapter 10 and the combination seat 17 are positioned by embracing each other through the mutual interlacing insertion of the first insertion slot 13 and the second insertion slot 19.

[0053] A plurality of combination shafts 14 are fixedly arranged on the end face of the inner side of the first insertion slot 13, and a plurality of insertion grooves 18 matched in number and position are arranged on the corresponding end face of the inner side of the second insertion slot 19, the plurality of combination shafts 14 are respectively inserted into the plurality of insertion grooves 18, and the bottom of each insertion groove 18 is provided with a supporting spring 20, one end of the supporting spring 20 is supported on the bottom of the insertion groove 18, and the other end is elastically supported on the end face of the insertion end of the corresponding combination shaft 14.

[0054] The embodiment is characterized in that: the first adapter 10 and the combination seat 17 are interlocked through the first insertion groove 13 and the second insertion groove 19, and the stability of the interlocked combination is further increased through the combination shaft 14 and the insertion groove 18. Since there is a possibility of error between the rubber pad 1 and the second end of the pole clamp 32 during the fixing of the rubber pad 1, the first adapter 10 and the combination seat 17 are further dislocated along the axial direction of the cable by rotating the third bolt 16 in the first threaded groove 15 when the second adapter 31 and the second end of the pole clamp 32 are combined, thereby facilitating the installation of the pre-stranded suspension clamp.

[0055] Specifically, the first threaded groove 15 is arranged at the center of the insertion end of the combination shaft 14, and the insertion groove 18 is provided with a through connection hole corresponding to the first threaded groove 15 at the bottom. After the preliminary interlocking of the first adapter 10 and the combination seat 17, the third bolt 16 is sequentially inserted through the connection hole from one side of the combination seat 17 and is screwed with the first threaded groove 15 at the end of the combination shaft 14, thereby realizing the final fastening connection between the two. The first threaded cylinder 21 is externally sleeved with a reinforcing sleeve 22, and the outer wall of the sleeve 22 is in a regular polygonal structure. An insertion groove 23 is arranged on each side plane of the sleeve 22, and the depth of the insertion groove 23 is greater than the width of the slot.

[0056] The embodiment is characterized in that: in the process of twisting the first threaded cylinder 21, the sleeve 22 can be twisted to drive the first threaded cylinder 21 to rotate by using a wrench, or the sleeve 22 can be twisted to drive the first threaded cylinder 21 to rotate by inserting a flat-blade screwdriver into the insertion groove 23, thereby adapting the twisting action of the first threaded cylinder 21 in different space environments.

[0057] Specifically, the top of the first threaded cylinder 21 is provided with a plurality of limiting grooves 24 arranged in a ring array, and the outer wall of the second threaded cylinder 29 is provided with a plurality of limiting holes 26 arranged in a ring array. A limiting bolt 27 is inserted through two limiting holes 26 and the corresponding two limiting grooves 24, and a first nut 28 is threadedly connected to the limiting bolt 27.

[0058] The top end face of the first threaded cylinder 21 is provided with a plurality of limiting grooves 24 arranged in a ring array along the circumferential direction, and the outer wall of the second threaded cylinder 29 is provided with a plurality of limiting holes 26 arranged in a ring array at the lower part. The first threaded cylinder 21 and the second threaded cylinder 29 are circumferentially limited by the following method: one limiting bolt 27 is inserted through one limiting hole 26 and the corresponding one limiting groove 24 below, and a first nut 28 is threadedly connected to the end of the limiting bolt 27 to lock the two. The second adapter 31 is fixedly embedded with a pole clamp 32 on the inner side. The pole clamp 32 has opposite first and second ends. The first and second ends are connected by a fifth bolt 36 and are locked by a third nut 37 screwed on the fifth bolt 36 to adjust and fix the clamping diameter of the pole clamp 32.

[0059] The second adapter 31 is adjustably connected with the second end of the pole clamp 32 through a fourth bolt 33, and a second nut 34 is screwed on the fourth bolt 33. In order to effectively prevent the second nut 34 from loosening under vibration, an anti-loosening pin 35 is arranged at the threaded connection part of the second nut 34 and the fourth bolt 33.

[0060] The implementation is specifically: two suspension clamping plates 8 with rivet holes 9 are respectively hung on two rivets 7 in a penetrating manner, then the first adapter 10 is placed between the two suspension clamping plates 8, and the second bolt 11 is twisted again by using a wrench, so that the adapter combination of the two suspension clamping plates 8 and the first adapter 10 is completed. In the initial state, the first threaded cylinder 21 and the second threaded cylinder 29 are in a separated state, that is, the first adapter 10 and the second adapter 31 are connected through the metal chain 25 as a connecting medium, so that the connection between the second adapter 31 and the second end of the pole clamp 32 is more convenient, and the metal chain 25 is in a relaxed state at this time, so that the connection between the second adapter 31 and the second end of the pole clamp 32 is not affected by the gravity of the cable, so that the installation of the pre-stranded suspension clamp is more convenient. The first threaded cylinder 21 and the second threaded cylinder 29 are pushed up to be combined, the first threaded cylinder 21 is twisted, and the first threaded inner surface of the first threaded cylinder 21 and the second threaded outer surface of the second threaded cylinder 29 are engaged, so that the suspension hanging point of the cable can be gradually pulled up. The cable and the pole clamp 32 are connected in a flexible manner in the initial state, and are connected in a rigid manner after the combination of the first threaded cylinder 21 and the second threaded cylinder 29, so as to ensure the stability of the pre-stranded suspension clamp. The first adapter 10, the second adapter 31, the combination seat 17 and the second threaded cylinder 29 are detachably connected, so as to facilitate the replacement of the first adapter 10 and the second adapter 31.

[0061] Working principle: when the cable is prepared to be installed with the shielding ring: the two half-ring rubber pads 1 are overlapped and covered on the predetermined suspension position of the cable, and are fixed by using an insulating tape, forming an insulating lining. A plurality of pre-stranded wires 2 are tightly and uniformly wound on the rubber pad 1 and the cable segment outside the rubber pad 1. The first shielding ring 3 and the second shielding ring 4 hinged by the pin shaft 5 are closed to cover and clamp the pre-stranded wires 2, so as to ensure that the position of the pre-stranded wires 2 corresponds to the rubber pad 1. Then, the first bolt 6 is tightened by using a wrench, and the fastening of the shielding ring assembly is completed.

[0062] Main body hanging and initial connection: hang the two overhanging clamping plates 8 on the rivets 7 outside the first shielding ring 3 and the second shielding ring 4 through the rivet holes 9 on the overhanging clamping plates 8, place the first adapter 10 between the two overhanging clamping plates 8, and tighten the second bolt 11 using a wrench to complete the fixed combination of the overhanging clamping plate 8 and the first adapter 10. At this time, the first threaded cylinder 21 and the second threaded cylinder 29 are in a separated state, the metal chain 25 is loose, the second adapter 31 is connected with the second end of the pole clamp 32, and the fourth bolt 33 and the fifth bolt 36 are adjusted and fixed. This process is easy and does not bear weight.

[0063] Threaded cylinder combination and tensioning lifting: push the first threaded cylinder 21 upwards so that it is aligned with the second threaded cylinder 29, and rotate the first threaded cylinder 21 so that the internal threads of the first threaded cylinder 21 engage with the external threads of the second threaded cylinder 29 to complete the preliminary connection between the two, tensioning operation, continue to hold the outer wall of the sleeve 22 using a wrench, or insert a flat-blade screwdriver into the slot 23 on the side of the sleeve 22, and rotate the sleeve 22 to drive the first threaded cylinder 21 to rotate. With the screwing of the threads, the metal chain 25 is gradually pulled, and the cable suspension point rises smoothly. The loose chain is gradually tensioned.

[0064] Continue to rotate until the cable reaches the predetermined installation height and the metal chain 25 is tensioned in place. At this time, the first threaded cylinder 21 and the second threaded cylinder 29 have formed a rigid connection, and the pre-stranded suspension clamp is in a stable working state.

[0065] Fine adjustment and final fixation: fault-tolerant fine adjustment. If it is found that the alignment is difficult due to the initial positioning deviation of the rubber pad 1 before final tightening, slightly loosen the third bolt 16. At this time, by slightly twisting the third bolt 16, a small amount of relative misalignment between the first adapter 10 and the combined seat 17 in the axial direction of the cable can be generated, so as to compensate for the installation error and ensure that all connection hole positions are aligned. After adjustment, tighten the third bolt 16 again, check that all the first bolt 6, the second bolt 11, the third bolt 16, the fourth bolt 33, the fifth bolt 36 and the corresponding nuts have been tightened according to the specified torque, and the check pin 35 is installed in place. The installation is completed.

[0066] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes within the technical scope disclosed by the present application according to the technical solution and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A pre-assembled suspension clamp for facilitating installation and replacement, characterized in that, The utility model relates to a kind of suspension clamp for coaxial cable, including: Two mutually opposed overhanging clamps (8); First adapter (10) is clamped and connected to the inner side of two described overhanging clamps (8), the end face of the first adapter (10) is provided with first combination hole (12), and fixed connection is realized with two described overhanging clamps (8) by second bolt (11); Combination seat (17) is detachably connected to the first adapter (10); First threaded cylinder (21) is sleeved in the top of the combination seat (17), the inner side of the first threaded cylinder (21) is embedded with metal chain (25), one end of the metal chain (25) is fixedly connected to the top of the combination seat (17); Second threaded cylinder (29) is arranged above the first threaded cylinder (21), the other end of the metal chain (25) is fixedly connected to the top of the inner side of the second threaded cylinder (29); And second adapter (31), the top of the second threaded cylinder (29) is provided with second threaded groove (30), and the second adapter (31) is connected in the second threaded groove (30) by thread cooperation; The outside of the first threaded cylinder (21) is provided with reinforcing sleeve (22), the cross section of the outer wall of the sleeve (22) is regular polygon structure, and one insertion slot (23) is formed in each side plane, and the depth of the insertion slot (23) is greater than the width of its slot opening; The top of the first threaded cylinder (21) is provided with a plurality of limit grooves (24) in annular array, the outer wall of the second threaded cylinder (29) is provided with a plurality of limit holes (26) in annular array, wherein one limit bolt (27) penetrates two limit holes (26) and the corresponding two limit grooves (24) in the top of the first threaded cylinder (21), and the first nut (28) is threadedly connected on the limit bolt (27); The top end surface of the first threaded cylinder (21) is provided with a plurality of limit grooves (24) in annular array along its circumferential direction, and the lower part of the outer side wall of the second threaded cylinder (29) is provided with a plurality of limit holes (26) in annular array, and the first threaded cylinder (21) and the second threaded cylinder (29) are circumferentially limited by the following way: One limit bolt (27) penetrates one limit hole (26) and the corresponding one limit groove (24) below it simultaneously, and the first nut (28) is threadedly connected on the end of the limit bolt (27) to lock them.

2. The preassembled overhead conductor clamp of claim 1, wherein, The inner side of two described overhanging clamps (8) is clamped and connected with first shield ring (3) and second shield ring (4), the lower edge of the first shield ring (3) and the second shield ring (4) is hinged by pin shaft (5), and the upper edge of the two is detachably fixedly connected by first bolt (6), forming a openable and closable annular structure. The first shielding ring (3) and the second shielding ring (4) are fixedly provided with rivets (7) on the outer side surfaces away from each other, the opposite inner side surfaces of the two overhanging clamping plates (8) are provided with rivet holes (9) corresponding to the positions of the rivets (7), and the first shielding ring (3) and the second shielding ring (4) are correspondingly inserted into and fixed in the rivet holes (9) of the overhanging clamping plates (8) through the rivets (7) thereon, so that the first shielding ring (3), the second shielding ring (4) and the overhanging clamping plates (8) are positioned and connected.

3. A pre-twisted suspension clamp for easy installation and replacement according to claim 2, characterized in that, The inner shaft centers of the first shielding ring (3) and the second shielding ring (4) are correspondingly provided with two semicircular rubber pads (1), and the two rubber pads (1) are fixed by being wrapped with insulating tape after being matched, and together form a complete cylindrical insulating lining. A plurality of pre-stranded wires (2) are uniformly arranged in the annular gap formed between the first shielding ring (3), the second shielding ring (4) and the two rubber pads (1) in the circumferential direction, and are used for compressing and fixing the conductors.

4. The preassembled overhead conductor clamp of claim 1, wherein, A first insertion groove (13) is formed in the top of the first adapter (10), a second insertion groove (19) is formed in the bottom of the combination seat (17) corresponding to the position of the first insertion groove (13), and the first adapter (10) and the combination seat (17) are clamped and positioned by being inserted into each other through the first insertion groove (13) and the second insertion groove (19). A plurality of combination shafts (14) are fixedly arranged on the end face of the inner side of the first insertion groove (13), and a plurality of insertion grooves (18) matched in number and position are formed on the corresponding end face of the inner side of the second insertion groove (19), a plurality of the combination shafts (14) are respectively inserted into a plurality of the insertion grooves (18), and a supporting spring (20) is arranged at the bottom of each insertion groove (18), one end of the supporting spring (20) is supported at the bottom of the insertion groove (18), and the other end is elastically supported on the end face of the insertion end of the corresponding combination shaft (14).

5. A pre-twisted suspension clamp for easy installation and replacement according to claim 4, characterized in that, A first threaded groove (15) is formed in the center of the end of the combination shaft (14), a through connecting hole is formed in the bottom of the insertion groove (18) corresponding to the first threaded groove (15), and after the first adapter (10) and the combination seat (17) are preliminarily clamped, the third bolt (16) is sequentially inserted through the connecting hole from one side of the combination seat (17) and is screwed with the first threaded groove (15) at the end of the combination shaft (14), so as to finally tightly connect the two.

6. The preassembled overhead conductor clamp of claim 1, wherein, An electric pole hoop (32) is fixedly embedded in the inner side of the second adapter (31), the electric pole hoop (32) has opposite first and second ends, the first and second ends are connected by penetrating the fifth bolt (36), and are locked by the third nut (37) screwed on the fifth bolt (36) to adjust and fix the clamping diameter of the electric pole hoop (32). The second adapter (31) and the second end of the electric pole hoop (32) are connected through a fourth bolt (33), the fourth bolt (33) is screwed with a second nut (34), in order to effectively prevent the second nut (34) from loosening under the vibration, a check pin (35) is arranged on the threaded matching part of the second nut (34) and the fourth bolt (33).

Images