A high-strength suspension wire clamp

Abstract

The present application relates to the field of electric power fittings, and specifically discloses a high-strength suspension wire clamp, which includes a supporting member, a clamping member and a hanging plate. The supporting member includes a connecting portion, a hinged portion, a hook-shaped portion and a fixed seat connected in sequence from top to bottom, the connecting portion is connected to the hanging plate, the hinged portion is hinged to the clamping member, and the hook-shaped portion is used to support the wire; the clamping member includes a rotating seat, a clamping portion and a connecting seat connected in sequence from top to bottom, the rotating seat is hinged to the hinged portion, a fastening bolt is passed through between the fixed seat and the connecting seat, the fastening bolt is threadedly connected with a fastening nut, a plurality of anti-skid teeth are arranged at intervals on the inner side of the clamping member, and a rubber strip is arranged between the anti-skid teeth. Combining the advantages of the anti-skid teeth and the rubber strip, on the one hand, the anti-skid teeth can be pressed into the surface of the wire, so that the contact area between the wire clamp and the wire is increased to increase the friction force; on the other hand, the rubber strip has a high friction coefficient and good anti-skid performance, which can further increase the friction force, so that the wire is subjected to a good clamping force.

Description

Technical Field

[0001] The present application relates to the field of electric power fittings, and in particular to a high-strength suspension wire clamp. Background Art

[0002] Power fittings are metal accessories that connect and combine various devices in the power system and play a role in transmitting mechanical loads, electrical loads and providing some protection. They play a vital role in the safe, stable and reliable operation of the power system.

[0003] Common power metals include suspension clamps, tension clamps, T-type clamps, etc. Among them, the suspension clamp is mainly used to suspend the conductor on the insulator string and is widely used in straight pole towers. In the related art, the suspension clamp includes a support for supporting the conductor, a clamp for clamping the conductor, and a hanging plate for installation. Anti-slip protrusions are set on the inner side of the support and the clamp to increase the clamping friction of the conductor.

[0004] Appropriate friction can reduce the relative movement between the wire and the clamp, thereby reducing the degree of wear and extending the service life. In addition, under complex loads such as breeze vibration, the friction between the wire and the clamp can disperse the stress and reduce the local stress concentration of the wire, thereby reducing the risk of wire breakage. However, in the related art, in order to ensure strength, the supporting parts and clamping parts are generally made of metal with a small friction coefficient, so the friction on the wire is still insufficient and needs to be improved. Summary of the invention

[0005] In order to increase the friction force on the wire, the present application provides a high-strength suspension wire clamp.

[0006] The high-strength suspension wire clamp provided in this application adopts the following technical solution:

[0007] A high-strength suspension wire clamp, comprising a supporting member, a clamping member and a hanging plate, wherein the supporting member comprises a connecting portion, a hinged portion, a hook-shaped portion and a fixing seat connected in sequence from top to bottom, the connecting portion is connected to the hanging plate, the hinged portion is hinged to the clamping member, and the hook-shaped portion is used to support the wire;

[0008] The clamping member includes a rotating seat, a clamping part and a connecting seat connected in sequence from top to bottom, the rotating seat is hinged to the hinged part, a fastening bolt is passed between the fixed seat and the connecting seat, the fastening bolt is threadedly connected with a fastening nut, a plurality of anti-slip teeth are arranged at intervals on the inner side of the clamping part, and rubber strips are arranged between the anti-slip teeth.

[0009] By adopting the above technical solution and combining the advantages of anti-skid teeth and rubber strips, on the one hand, the anti-skid teeth can be pressed into the surface of the wire, so that the contact area between the wire clamp and the wire is increased to increase the friction force; on the other hand, the rubber strip has a high friction coefficient and good anti-skid performance, which can further increase the friction force, so that the wire is subjected to a good clamping force, is not easy to slide under the action of external force, and can withstand strong transverse tensile stress.

[0010] Optionally, the clamping part is provided with a plurality of annular belts at intervals, the rubber strips are bonded to the annular belts one by one, the upper end of the clamping part is provided with an upper through hole for the annular belts and the rubber strips to pass through, and the lower end of the clamping part is provided with a lower through hole for the annular belts and the rubber strips to pass through.

[0011] By adopting the above technical solution, rubber is easily aged under the action of heat and oxygen in outdoor environment, thus affecting the clamping force on the wire. When the rubber strip is aged, first loosen the fastening nut, then adhere a new rubber strip to the annular belt outside the clamping part, and then pull the annular belt to pull out the aged rubber strip and install a new rubber strip, so as to realize the quick replacement of the rubber strip.

[0012] Optionally, a plurality of guide rails are arranged inside the clamping portion, the annular belt is provided with guide grooves for the guide rails to be inserted into, both sides of the rubber strip are in contact with anti-slip teeth, and the anti-slip teeth are integrally formed with the clamping portion.

[0013] By adopting the above technical solution, on the one hand, the position of the annular belt is not easily shifted when it is pulled, ensuring that the rubber strip can be installed in place; on the other hand, in the length direction of the wire, the rubber strip is supported by the anti-slip teeth and is not easily deformed.

[0014] Optionally, the annular belt is an aramid webbing, and the guide rail has a T-shaped cross section.

[0015] By adopting the above technical solution, the aramid webbing is woven with aramid fiber as raw material, has extremely high strength, a very wide continuous use temperature range, and low friction resistance with the metal clamping part, making the annular belt easy to pull. In addition, the annular belt is positioned by the guide rail and can always fit the inner wall of the clamping part, ensuring that the position of the annular belt is not easy to deviate.

[0016] Optionally, two rotating shafts are arranged on the outside of the clamping part, both ends of the rotating shafts are rotatably connected with fixed blocks, the fixed blocks are fixedly connected to the clamping part, the annular belt abuts against the side of the rotating shaft away from the clamping part, and an operating distance is arranged between the two rotating shafts.

[0017] By adopting the above technical solution, the operation spacing provides enough space for people to manually pull the endless belt to move.

[0018] Optionally, a stop rod for blocking the rubber strip is provided on one side of the anti-slip tooth, positioning plates are provided on both sides of the clamping part, the positioning plates are provided with positioning holes for the stop rod to pass through, the stop rod is connected with an anti-slip block, and the upper end of the positioning hole is connected with a through hole for the anti-slip block to pass through.

[0019] By adopting the above technical solution, the baffle rod is inserted into the through hole and lowered so that the anti-dropping block is misaligned with the through hole. At this time, the baffle rod serves as a reminder that the new rubber strip is in place. When the rubber strip touches the baffle rod, it indicates that the installation is in place. After the installation is completed, the baffle rod can be pulled out without affecting the normal use of the wire clamp.

[0020] Optionally, the clamping portion is provided with a sliding groove for the positioning plate to move toward or away from the hook-shaped portion, the clamping portion is penetrated by a receiving hole for accommodating the blocking rod, and the positioning plate is provided with a receiving hole for the blocking rod to pass through, and when the receiving hole is connected with the receiving hole, the positioning plate does not extend out of the sliding groove.

[0021] By adopting the above technical solution, the blocking rod can be stored inside the clamping part to avoid the trouble of losing the blocking rod, and the blocking rod positions the retracted state of the positioning plate so that the positioning plate does not affect the normal use of the wire clamp.

[0022] Optionally, the hook-shaped portion is provided with a notch for the clamping portion to rotate into.

[0023] Optionally, a plurality of reinforcing ribs are fixedly connected to the outer wall of the hook-shaped portion.

[0024] By adopting the above technical solution, the strength of the supporting member is increased to cope with various extreme situations.

[0025] Optionally, a plurality of clamping teeth are arranged inside the hook-shaped portion, and the height of the clamping teeth is smaller than that of the anti-slip teeth.

[0026] By adopting the above technical solution, the clamping effect on the wire is further improved.

[0027] In summary, this application has the following beneficial effects:

[0028] 1. The present application combines the advantages of anti-slip teeth and rubber strips. On the one hand, the contact area between the wire clamp and the wire is increased. On the other hand, the friction coefficient of the rubber strip is high, which comprehensively improves the friction force, so that the wire is subjected to a good clamping force, is not easy to slide under the action of external force, and can withstand strong transverse tensile stress;

[0029] 2. Rubber is easily aged by heat and oxygen in outdoor environment, which will affect the clamping force of the wire. When the rubber strip is aged, loosen the fastening nut first, then stick the new rubber strip to the annular belt outside the clamping part, and then pull the annular belt to pull out the aged rubber strip and install the new rubber strip, so as to realize the quick replacement of the rubber strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of a high-strength suspension wire clamp according to an embodiment of the present application;

[0031] Figure 2 is a schematic structural diagram of a supporting member in an embodiment of the present application from a first viewing angle;

[0032] Figure 3 is a schematic structural diagram of the supporting member of the embodiment of the present application from a second viewing angle;

[0033] Figure 4 is a schematic structural diagram of a clamping member according to an embodiment of the present application;

[0034] Figure 5 yes Figure 4 A magnified schematic diagram of the middle A area;

[0035] Figure 6 is a cross-sectional schematic diagram of a clamping member according to an embodiment of the present application;

[0036] Figure 7 yes Figure 6 A magnified schematic diagram of the middle B area;

[0037] Figure 8 It is a schematic cross-sectional view of the guide rail and the annular belt of an embodiment of the present application.

[0038] Explanation of the accompanying drawings: 1. Supporting member; 11. Connecting portion; 12. Hinge portion; 13. Hook-shaped portion; 131. Notch; 132. Reinforcing rib; 133. Clamping tooth; 14. Fixed seat; 2. Clamping member; 21. Rotating seat; 22. Clamping portion; 221. Anti-slip tooth; 222. Upper through hole; 223. Lower through hole; 224. Guide rail; 225. Slide groove; 226. Accommodating hole; 23. Connecting seat; 24. Rotating shaft; 25. Fixed block; 3. Hanging plate; 4. Fastening bolt; 5. Fastening nut; 6. Rubber strip; 7. Annular belt; 71. Guide groove; 8. Operating spacing; 9. Stop rod; 91. Anti-slip block; 10. Positioning plate; 101. Positioning hole; 102. Through hole; 103. Storage hole. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-8 This application is described in further detail.

[0040] The embodiment of the present application discloses a high-strength suspension wire clamp.

[0041] Reference Figure 1 The high-strength suspension wire clamp comprises a supporting member 1 for supporting the wire, a clamping member 2 for clamping the wire, and a hanging plate 3 for installation, wherein the hanging plate 3 and the clamping member 2 are both connected to the supporting member 1.

[0042] Reference Figure 2 , Figure 3 The supporting member 1 includes a connecting portion 11, a hinged portion 12, a hook-shaped portion 13 and a fixing seat 14 which are fixedly connected in sequence from top to bottom. The connecting portion 11 is fixedly connected to the hanging plate 3, the hinged portion 12 is hinged to the clamping member 2, and the hook-shaped portion 13 is used to support the wire. A notch 131 is provided in the middle of one end of the hook-shaped portion 13 away from the hinged portion 12 for the clamping member 2 to rotate into, so as to improve the clamping effect on the wire. A plurality of reinforcing ribs 132 are fixedly connected to the outer wall of the hook-shaped portion 13, so as to increase the strength of the supporting member 1 to cope with various extreme situations. A plurality of clamping teeth 133 are integrally formed on the inner side of the hook-shaped portion 13, so as to improve the clamping effect on the wire.

[0043] Reference Figure 3 , Figure 4 The clamping member 2 includes a rotating seat 21, a clamping portion 22 and a connecting seat 23 which are fixedly connected in sequence from top to bottom. The rotating seat 21 is inserted into the hinged portion 12 and is hinged to the hinged portion 12, so that the clamping member 2 can rotate close to or away from the hook-shaped portion 13, which is convenient for the installation of the wire. A plurality of anti-slip teeth 221 are integrally formed at intervals on the inner side of the clamping portion 22. The anti-slip teeth 221 are arranged vertically, that is, arranged along the outer periphery of the wire. The end of the anti-slip teeth 221 away from the clamping portion 22 and the end of the clamping teeth 133 away from the hook-shaped portion 13 are both pointed, so as to facilitate pressing into the outer skin of the wire and increase the clamping force. The height of the anti-slip teeth 221 is greater than that of the clamping teeth 133.

[0044] Reference Figure 1 , Figure 4 A fastening bolt 4 is provided between the fixing seat 14 and the connecting seat 23, and a fastening nut 5 is threadedly connected to the fastening bolt 4. The holes through which the fastening bolt 4 passes in the fixing seat 14 and the connecting seat 23 are waist-shaped holes. The head of the fastening bolt 4 abuts against the connecting seat 23, and the fastening nut 5 abuts against the fixing seat 14. By screwing the fastening nut 5, the clamping degree of the wire can be adjusted.

[0045] Reference Figure 5 , Figure 6 , rubber strips 6 are arranged between adjacent anti-slip teeth 221, and annular belts 7 are bonded to the rubber strips 6 one by one, and the annular belts 7 are passed through the clamping part 22, and the rubber strips 6 are located on the side of the annular belts 7 away from the clamping part 22. An upper through hole 222 is arranged at the upper end of the clamping part 22 for the annular belt 7 and the rubber strips 6 to pass through, and a lower through hole 223 is arranged at the lower end of the clamping part 22 for the annular belt 7 and the rubber strips 6 to pass through. Rubber is easily aged under the action of heat and oxygen in outdoor environment, thereby affecting the clamping force on the wire. When the rubber strips 6 are aged, first loosen the fastening nut 5, and then bond a new rubber strip 6 to the annular belt 7 on the outside of the clamping part 22, and then pull the annular belt 7, which can drive the rubber strips 6 to move between the inside and outside of the clamping part 22, so that the aged rubber strips 6 can be pulled out and the new rubber strips 6 can be installed, so as to realize the quick replacement of the rubber strips 6.

[0046] Reference Figure 6 , Figure 7 Two parallel rotating shafts 24 are arranged outside the clamping part 22, and both ends of the rotating shafts 24 are rotatably connected with fixed blocks 25, and the fixed blocks 25 are fixedly connected to the clamping part 22. The annular belt 7 abuts against the side of the rotating shaft 24 away from the clamping part 22, and an operating distance 8 is arranged between the two rotating shafts 24. The operating distance 8 provides enough space for a person to pull the annular belt 7 to move.

[0047] Reference Figure 5 , Figure 7 In order to facilitate the accurate installation of the new rubber strip 6, a stopper 9 for blocking the rubber strip 6 is provided on the upper side of the anti-slip teeth 221. Positioning plates 10 are provided on both sides of the clamping portion 22, and the positioning plates 10 are provided with positioning holes 101 for the stopper 9 to pass through, and the length of the stopper 9 is greater than the spacing between the two positioning plates 10. Anti-slip blocks 91 are fixedly connected at both ends of the stopper 9, and the upper end of the positioning hole 101 is connected with a through hole 102 for the anti-slip block 91 to pass through. Adjust the position of the anti-slip block 91 to the upper side of the stopper 9, then pass the stopper 9 through the two positioning plates 10, and then rotate the stopper 9 until the anti-slip block 91 is misaligned with the through hole 102. At this time, the stopper 9 can serve as a reminder that the new rubber strip 6 is in place. When the rubber strip 6 touches the stopper 9, it means that it is installed in place. After the installation is completed, the stopper 9 can be pulled out without affecting the normal use of the wire clamp.

[0048] In order to facilitate the normal use of the wire clamp, the clamping portion 22 is provided with a slide groove 225 for the positioning plate 10 to move toward or away from the hook-shaped portion 13. The clamping portion 22 is provided with a receiving hole 226 for receiving the blocking rod 9. The receiving hole 226 can be passed through by the anti-slip block 91, and the receiving hole 226 is connected with the slide groove 225. The positioning plate 10 is provided with a receiving hole 103 for the blocking rod 9 and the anti-slip block 91 to pass through. When the receiving hole 103 is connected with the receiving hole 226, the positioning plate 10 does not extend out of the slide groove 225. The blocking rod 9 can be stored inside the clamping portion 22 to avoid the trouble of losing the blocking rod 9, and the blocking rod 9 positions the positioning plate 10 in a retracted state, so that the positioning plate 10 does not affect the normal use of the wire clamp.

[0049] Reference Figure 4 , Figure 8 The annular belt 7 is an aramid webbing, and a plurality of guide rails 224 are fixedly connected to the inner side of the clamping part 22, and the cross section of the guide rails 224 is T-shaped. The annular belt 7 is provided with a guide groove 71 for the guide rails 224 to be inserted into, and both sides of the rubber strip 6 are in contact with the anti-slip teeth 221, and the anti-slip teeth 221 are integrally formed with the clamping part 22. On the one hand, the position of the annular belt 7 is not easy to shift when it is pulled, ensuring that the rubber strip 6 can be installed in place, and on the other hand, in the length direction of the wire, the rubber strip 6 is supported by the anti-slip teeth 221 and is not easy to deform.

[0050] The implementation principle of the high-strength suspension clamp of the embodiment of the present application is:

[0051] Combining the advantages of the anti-slip teeth 221 and the rubber strip 6, on the one hand, the anti-slip teeth 221 can be pressed into the surface of the wire, so that the contact area between the wire clamp and the wire is increased to increase the friction; on the other hand, the rubber strip 6 has a high friction coefficient and good anti-slip performance, which can further increase the friction, so that the wire is subjected to a good clamping force, is not easy to slide under the action of external force, and can withstand strong transverse tensile stress.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-strength suspension wire clamp, comprising a supporting member (1), a clamping member (2) and a hanging plate (3), characterized in that: The supporting member (1) comprises a connecting portion (11), a hinged portion (12), a hook-shaped portion (13) and a fixing seat (14) which are sequentially connected from top to bottom, the connecting portion (11) is connected to the hanging plate (3), the hinged portion (12) is hinged to the clamping member (2), and the hook-shaped portion (13) is used to support the wire; The clamping member (2) comprises a rotating seat (21), a clamping portion (22) and a connecting seat (23) which are connected in sequence from top to bottom, the rotating seat (21) is hinged to the hinged portion (12), a fastening bolt (4) is passed between the fixed seat (14) and the connecting seat (23), the fastening bolt (4) is threadedly connected to a fastening nut (5), a plurality of anti-slip teeth (221) are arranged at intervals on the inner side of the clamping portion (22), and rubber strips (6) are arranged between the anti-slip teeth (221); The clamping portion (22) is provided with a plurality of annular belts (7) at intervals, the rubber strips (6) are bonded to the annular belts (7) one by one, the upper end of the clamping portion (22) is provided with an upper through hole (222) for the annular belts (7) and the rubber strips (6) to pass through, and the lower end of the clamping portion (22) is provided with a lower through hole (223) for the annular belts (7) and the rubber strips (6) to pass through.

2. The high-strength suspension clamp according to claim 1, characterized in that: A plurality of guide rails (224) are arranged inside the clamping portion (22), the annular belt (7) is provided with guide grooves (71) for the guide rails (224) to be inserted into, both sides of the rubber strip (6) are in contact with anti-slip teeth (221), and the anti-slip teeth (221) and the clamping portion (22) are integrally formed.

3. The high-strength suspension clamp according to claim 2, characterized in that: The annular belt (7) is an aramid webbing, and the guide rail (224) has a T-shaped cross section.

4. The high-strength suspension clamp according to claim 2, characterized in that: Two rotating shafts (24) are arranged outside the clamping part (22), and both ends of the rotating shaft (24) are rotatably connected with fixed blocks (25), and the fixed blocks (25) are fixedly connected to the clamping part (22). The annular belt (7) abuts against a side of the rotating shaft (24) away from the clamping part (22), and an operating distance (8) is arranged between the two rotating shafts (24).

5. The high-strength suspension clamp according to claim 2, characterized in that: A stop rod (9) for blocking the rubber strip (6) is arranged on one side of the anti-slip tooth (221), positioning plates (10) are arranged on both sides of the clamping portion (22), the positioning plates (10) are provided with a positioning hole (101) for the stop rod (9) to pass through, the stop rod (9) is connected to an anti-slip block (91), and the upper end of the positioning hole (101) is connected to a through hole (102) for the anti-slip block (91) to pass through.

6. The high-strength suspension clamp according to claim 5, characterized in that: The clamping portion (22) is provided with a slide groove (225) for the positioning plate (10) to move toward or away from the hook-shaped portion (13); the clamping portion (22) is penetrated by a receiving hole (226) for receiving the blocking rod (9); the positioning plate (10) is provided with a receiving hole (103) for the blocking rod (9) to pass through; when the receiving hole (103) is connected to the receiving hole (226), the positioning plate (10) does not extend out of the slide groove (225).

7. The high-strength suspension clamp according to claim 1, characterized in that: The hook-shaped portion (13) is provided with a notch (131) for the clamping portion (22) to rotate into.

8. The high-strength suspension clamp according to claim 1, characterized in that: The outer wall of the hook-shaped portion (13) is fixedly connected with a plurality of reinforcing ribs (132).

9. The high-strength suspension clamp according to claim 1, characterized in that: A plurality of clamping teeth (133) are arranged inside the hook-shaped portion (13), and the height of the clamping teeth (133) is smaller than the anti-slip teeth (221).

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