A shock-absorbing and wear-resistant bolt-type tension clamp

Abstract

The utility model relates to a shock-absorbing and wear-resistant bolt-type tension clamp applied in the technical field of tension clamps. When the tension clamp body is used to install the aluminum stranded wire, the interlayer can be inserted into the tension clamp body from the side to fit with it, so that the first connecting block and the second connecting block will fit together. At this time, the first connecting block and the second connecting block are threadedly fixed by bolts to position the interlayer, and then the aluminum stranded wire is inserted into the interlayer in the tension clamp body. At this time, the sliding groove can be used for fine adjustment up and down to make the rubber pad at the bottom of the limit block contact with the top of the aluminum stranded wire, and the convex point is used to increase the friction to avoid slipping. After the position is adjusted, the U-bolt is clamped in the limit block and passes through the clamping groove, and is fixed by a nut, so that the aluminum stranded wire is positioned, effectively achieving the effect of avoiding wear between the aluminum stranded wire and the tension clamp body when the conductor or lightning conductor swings violently in strong winds.

Description

Technical Field

[0001] The utility model relates to a shock-absorbing and wear-resistant bolt-type tension wire clamp, in particular to a shock-absorbing and wear-resistant bolt-type tension wire clamp used in the technical field of tension wire clamps. Background Art

[0002] Strain clamps refer to hardware used to fix conductors to withstand conductor tension and hang the conductors on tension strings or poles. Common tension clamps can be divided into compression-type tension clamps and bolt-type tension clamps according to their structure and installation methods. Bolt-type tension clamps are suitable for fixing small and medium-section aluminum stranded wires and steel-core aluminum stranded wires on tension towers of overhead power lines and substations.

[0003] The specification of Chinese patent CN210246266U discloses a bolt-type tension wire clamp, including a wire clamp, a fixing block is welded and fixed at the lower end of the wire clamp, the fixing block is divided into a left fixing block and a right fixing block, the left fixing block has a cavity, a sliding rod is welded and fixed at the left end of the right fixing block, a groove is left in the sliding rod, a limit plate is slidably connected in the groove, a triangular block is welded and fixed at the upper end of the limit plate, and a spring is welded and fixed at the lower end of the limit plate. The utility model wire clamp is detachable and can be quickly installed, which is convenient for workers to carry and also reduces assembly time. The wires can be fixed in all directions through the pressure plate and the fastening block, and the fixing effect is good, and the wires are not easy to slide.

[0004] The specification of Chinese patent CN205248746U discloses a bolt-type tension clamp, comprising a clamp body, a pressure strip, a U-bolt and a fixing nut matched with the U-bolt. The clamp body is provided with a wire laying groove for accommodating cables, and the pressure strip presses the cables in the wire laying groove under the tightening action of the U-bolt and the fixing nut; the bottom of the wire laying groove and the side of the pressure strip facing the bottom of the groove are provided with mutually cooperating clamping protrusions and clamping recesses. The technical solution utilizes the cooperative action of the clamping protrusion and the clamping recess to increase the contact area and friction coefficient between the cable and the pressure strip and the clamp body, thereby increasing the friction force on the cable, thereby improving the fastening performance of the bolt-type tension clamp on the cable, effectively preventing the cable from sliding, and ensuring the safety of power transmission and transformation.

[0005] However, the existing bolt-type tension clamp has limited slots for fixing the U-bolts during use, and the conductors are prone to friction in the wire slots, and the bolts are prone to loosening, so incidents of conductor slipping also occur from time to time.

[0006] The existing tension clamps have poor wear resistance. After long-term use, the friction between the aluminum stranded wire and the tension clamp causes the tension clamp to wear, thereby affecting its structural strength and causing safety hazards. Utility Model Content

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the existing tension wire clamp has poor wear resistance. After long-term use, the friction between the aluminum stranded wire and the tension wire clamp causes the tension wire clamp to wear, thereby affecting its structural strength and causing safety hazards.

[0008] In order to solve the above problems, the utility model provides a shock-absorbing and wear-resistant bolt-type tension clamp, including a tension clamp body, an inner wall of the tension clamp body is detachably connected with a interlayer, an aluminum stranded wire is installed in the interlayer, and a plurality of through holes are equidistantly drilled on the interlayer, a second connecting block is fixedly connected to the bottom end of the tension clamp body, a first connecting block is fixedly connected to the bottom end of the interlayer on the same side as the second connecting block, and the second connecting block is fixed to the first connecting block by bolts, and insulating sleeves are provided on the surfaces of the first connecting block and the second connecting block, a plurality of groups of clamping blocks are symmetrically fixedly connected to the inner wall of the tension clamp body above the interlayer, and each group of clamping blocks is slidably connected to a limiting block through a sliding groove, and a plurality of equidistantly arranged clamping grooves are fixedly connected to the bottom end of the tension clamp body directly below the limiting block, a U-shaped bolt is engaged in the clamping groove, and the U-shaped bolt is fixed to the clamping groove thread by a nut.

[0009] In the bolt-type tension clamp, the effect of preventing the aluminum stranded wire and the tension clamp body from being worn when the conductor or lightning conductor swings violently in windy weather is effectively achieved.

[0010] As a further improvement of the present application, a rubber pad is fixedly connected to the bottom end of the limit block, and a plurality of evenly distributed protrusions are fixedly connected to the rubber pad.

[0011] As a further improvement of the present application, the bottom of the tension clamp body is designed to be wavy, and each crest part is provided with a water outlet.

[0012] As a further improvement of the present application, the bottom end of the insulating sleeve is hollowed out, and the insulating sleeve is made of elastic material, and each card slot is provided with a leakage hole corresponding to the water outlet.

[0013] As another improvement of the present application, a water shield is detachably connected to the top of the tension clamp body, and a plurality of groups of connecting rods are symmetrically fixedly connected to the bottom of the water shield.

[0014] As another improved supplement of the present application, a slot corresponding to the connecting rod is drilled at the top of the tension clamp body, and the connecting rod is engaged with the slot, and the slot and the limit block are spaced apart.

[0015] As another improved supplement of the present application, the height of the connecting rod is twice the height of the limiting block.

[0016] To sum up, the present scheme can be realized. When the aluminum stranded wire is installed using the tension clamp body, the interlayer can be inserted into the tension clamp body from the side to fit it, so that the first connecting block and the second connecting block will fit together. At this time, the first connecting block and the second connecting block are threadedly fixed by bolts to position the interlayer, so as to achieve the purpose of convenient disassembly and replacement when it is damaged later. Then the aluminum stranded wire is inserted into the interlayer in the tension clamp body. At this time, the slide groove can be slid up and down for fine adjustment, so that the rubber pad at the bottom of the limit block contacts the top of the aluminum stranded wire, and the convex points are used to increase friction to avoid slipping. After the position is adjusted, the U-bolt is stuck in the limit block and passes through the slot, and is fixed by the nut, so as to position the aluminum stranded wire. After the installation is completed, the first connecting block and the second connecting block as well as the slot and the nut are all covered with insulating sleeves to avoid long-term corrosion and rust caused by rain and difficult disassembly, and effectively achieve the effect of avoiding wear between the aluminum stranded wire and the tension clamp body when the conductor or lightning conductor swings violently in strong winds. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Axonometric diagram of the tension clamp of the first and second embodiments of the present application;

[0018] Figure 2 This is a diagram of the interlayer installation structure of the first embodiment of the present application;

[0019] Figure 3 This is a structural diagram of the tension clamp of the first and second embodiments of the present application;

[0020] Figure 4 This is a structural diagram of a limit block according to a first embodiment of the present application;

[0021] Figure 5 For this application Figure 4 Enlarged view of point A in the middle;

[0022] Figure 6 This is a cross-sectional view of a tension clamp test according to a second embodiment of the present application;

[0023] Figure 7 This is a partial structural diagram of the tension clamp of the second embodiment of the present application.

[0024] Description of the numbers in the figure:

[0025] 1. Strain clamp body; 2. Interlayer; 3. Limit block; 4. Slot; 5. U-bolt; 6. Aluminum stranded wire; 7. First connecting block; 8. Second connecting block; 9. Insulating sleeve; 10. Bolt; 11. Nut; 12. Perforation; 13. Block; 14. Water outlet; 15. Slide; 16. Rubber pad; 17. Water retaining cover; 18. Connecting rod; 19. Slot. DETAILED DESCRIPTION

[0026] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0027] The first implementation method:

[0028] Figure 1-5 A shock-absorbing and wear-resistant bolt-type tension clamp is shown, comprising a tension clamp body 1, the inner wall of the tension clamp body 1 is detachably connected to a sandwich 2, an aluminum stranded wire 6 is installed in the sandwich 2, and a plurality of perforations 12 are equidistantly drilled on the sandwich 2, a second connection block 8 is fixedly connected to the bottom end of the tension clamp body 1, a first connection block 7 is fixedly connected to the bottom end of the sandwich 2 on the same side as the second connection block 8, and the second connection block 8 is fixed to the first connection block 7 by an insulating bolt 10, and the surfaces of the first connection block 7 and the second connection block 8 are covered with insulating The sleeve 9 is provided, and the inner wall of the tension clamp body 1 above the interlayer 2 is symmetrically fixedly connected with a plurality of groups of card blocks 13, and each group of card blocks 13 is slidably connected with a limit block 3 through a slide groove 15. The bottom end of the tension clamp body 1 directly below the limit block 3 is fixedly connected with a plurality of equidistantly arranged card slots 4, and a U-shaped bolt 5 is engaged in the card slot 4, and the U-shaped bolt 5 is threadedly fixed to the card slot 4 through a nut 11. The bottom end of the limit block 3 is fixedly connected with a rubber pad 16, and the rubber pad 16 is fixedly connected with a plurality of evenly distributed protrusions.

[0029] This solution can be achieved. When the tension clamp body 1 is used to install the aluminum stranded wire 6, the interlayer 2 can be inserted into the tension clamp body 1 from the side to fit it, so that the first connecting block 7 and the second connecting block 8 will fit together. At this time, the first connecting block 7 and the second connecting block 8 are screwed and fixed by bolts 10 to position the interlayer 2, so as to facilitate the disassembly and replacement of the aluminum stranded wire 6 when it is damaged later. Then, the aluminum stranded wire 6 is inserted into the interlayer 2 in the tension clamp body 1. At this time, the slide groove 15 can be used to slide up and down for fine adjustment, so that the rubber pad 16 at the bottom of the limit block 3 is aligned with the aluminum stranded wire. The top of the wire 6 is in conflict, and the convex points are used to increase the friction to avoid slipping. After the position is adjusted, the U-bolt 5 is stuck in the limit block 3 and passes through the card slot 4, and is fixed by the nut 11, so as to position the aluminum stranded wire 6. After the installation is completed, the first connecting block 7 and the second connecting block 8 as well as the card slot 4 and the nut 11 are covered with an insulating sleeve 9 to avoid long-term corrosion and rust caused by rain and difficulty in disassembly, and effectively achieve the effect of avoiding wear between the aluminum stranded wire 6 and the tension clamp body 1 when the conductor or lightning conductor swings violently in strong winds.

[0030] The second implementation method:

[0031] Figure 1 , Figure 3 and Figure 6-7It is shown that the bottom of the tension clamp body 1 is designed in a wavy shape, and each wave crest part is provided with a water outlet 14, the bottom end of the insulating sleeve 9 is hollowed out, and the insulating sleeve 9 is made of elastic material, and each slot 4 is drilled with a leakage hole corresponding to the water outlet 14, the top of the tension clamp body 1 is detachably connected to a water retaining cover 17, and the bottom end of the water retaining cover 17 is symmetrically fixedly connected to multiple groups of connecting rods 18, the top of the tension clamp body 1 is drilled with a slot 19 corresponding to the connecting rod 18, and the connecting rod 18 is engaged with the slot 19, and the slot 19 is spaced apart from the limit block 3, and the height of the connecting rod 18 is twice the height of the limit block 3.

[0032] This solution can be achieved. After the aluminum stranded wire 6 is installed in the tension clamp body 1, the water-blocking cover 17 can be inserted into the slot 19 through the connecting rod 18 to be fixed, so that the water-blocking cover 17 covers the tension clamp body 1, and the height of the connecting rod 18 is higher than the limit block 3. Therefore, the water-blocking cover 17 and the tension clamp body 1 are in an overhead state. The U-bolt 5 is clamped between the water-blocking cover 17 and the tension clamp body 1, which is convenient for ventilating the tension clamp body 1 and protecting the tension clamp body 1 from rain. The water-blocking cover 17 is made of plastic, which can reduce the stress on the tension clamp body 1. Due to the gap left, a small amount of rainwater will flow in. Entering into the tension clamp body 1, when rainwater flows into the tension clamp body 1, it can flow along the perforations 12 on the interlayer 2 to the tension clamp body 1, and because the bottom of the tension clamp body 1 is designed in a concave-convex shape, the rainwater will flow out from the water outlet 14 along the downhill slope. At the same time, there is a leakage hole on the slot 4 that contacts the tension clamp body 1, and water droplets can flow out from the leakage hole and out from the insulating sleeve 9, thereby avoiding the effect of water storage in the tension clamp body 1. When it is sunny, the interior can be air-dried from the gap between the water retaining cover 17 and the tension clamp body 1, effectively achieving the effect of avoiding the water storage in the tension clamp body 1 causing rust on the aluminum stranded wire 6.

[0033] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A shock-absorbing and wear-resistant bolt-type tension clamp, comprising a tension clamp body (1), characterized in that: The inner wall of the tension clamp body (1) is detachably connected to a sandwich layer (2), an aluminum stranded wire (6) is installed in the sandwich layer (2), a plurality of holes (12) are equidistantly drilled on the sandwich layer (2), a second connection block (8) is fixedly connected to the bottom end of the tension clamp body (1), a first connection block (7) is fixedly connected to the bottom end of the sandwich layer (2) on the same side as the second connection block (8), and the second connection block (8) is fixedly connected to the first connection block (7) by bolts (10), and the first connection block (7) and the second connection block (8) are fixedly connected to the first connection block (7) by bolts (10). 8) The surface is provided with an insulating sleeve (9), the inner wall of the tension clamp body (1) located above the interlayer (2) is symmetrically fixedly connected with a plurality of groups of clamping blocks (13), and each group of the clamping blocks (13) is slidably connected to a limit block (3) through a slide groove (15), and the bottom end of the tension clamp body (1) located directly below the limit block (3) is fixedly connected with a plurality of equidistantly arranged clamping grooves (4), and a U-shaped bolt (5) is clamped in the clamping groove (4), and the U-shaped bolt (5) is threadedly fixed to the clamping groove (4) through a nut (11).

2. A shock-absorbing and wear-resistant bolt-type tension clamp according to claim 1, characterized in that: A rubber pad (16) is fixedly connected to the bottom end of the limit block (3), and a plurality of evenly distributed protrusions are fixedly connected to the rubber pad (16).

3. The shock-absorbing and wear-resistant bolt-type tension clamp according to claim 1, characterized in that: The bottom of the tension clamp body (1) is designed to be wavy, and each wave crest portion is provided with a water outlet hole (14).

4. The shock-absorbing and wear-resistant bolt-type tension clamp according to claim 3, characterized in that: The bottom end of the insulating sleeve (9) is hollowed out, and the insulating sleeve (9) is made of an elastic material. Each of the card slots (4) is provided with a leakage hole corresponding to the water outlet hole (14).

5. The shock-absorbing and wear-resistant bolt-type tension clamp according to claim 1, characterized in that: The top end of the tension clamp body (1) is detachably connected to a water shield (17), and the bottom end of the water shield (17) is symmetrically fixedly connected to a plurality of groups of connecting rods (18).

6. A shock-absorbing and wear-resistant bolt-type tension clamp according to claim 5, characterized in that: A slot (19) corresponding to the connecting rod (18) is bored at the top of the tension clamp body (1), the connecting rod (18) is engaged with the slot (19), and the slot (19) and the limit block (3) are spaced apart.

7. The shock-absorbing and wear-resistant bolt-type tension clamp according to claim 5, characterized in that: The height of the connecting rod (18) is twice the height of the limiting block (3).

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