Heart-shaped ring for pre-twisted strain clamp

Abstract

The heart-shaped ring comprises a heart-shaped ring body, the heart-shaped ring body comprises an annular part, the upper end and the lower end of the outer wall of one side of the annular part are integrally provided with extending parts which are distributed in parallel towards one side, the outer wall of the periphery of the annular part is provided with an annular groove used for containing the strain clamp, and the annular groove is provided with an annular groove used for containing the strain clamp. Clamping structures are detachably connected to one ends of the two extending parts, each clamping structure comprises a clamping block, limiting grooves corresponding to the U-shaped rings are formed in the surfaces of the two sides of each clamping block and the surface of the end, facing the annular part, of each clamping block, and limiting structures are arranged on the surfaces of the top and the bottom of each clamping block; the clamping block is connected with the extending part through a fastener, the clamping block is used for replacing a traditional bolt to achieve hooking of the U-shaped ring, the limiting grooves corresponding to the U-shaped ring in structure are formed in the surfaces of the three sides of the clamping block so that axial limiting of the U-shaped ring can be achieved, and the possibility that the U-shaped ring rotates, so that the non-bent part of the U-shaped ring deforms due to stress is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric power connection hardware, specifically, relates to a pre-stranded strain clamp heart -shaped ring. BACKGROUND

[0002] In the construction and maintenance process of the power line, the pre-stranded strain clamp is a key connecting component, which is used for fixing the wire on the tower and bearing the tension of the wire. The heart-shaped ring as an important part of the strain clamp, the stability of its structure design and connection mode directly affects the safety and stability of the power line. The traditional heart-shaped ring adopts the design of inserting a bolt at one end to hook the U-shaped ring, which often has problems such as insufficient tight connection, insecure fixation and easy deformation due to uneven stress, which not only affects the operation efficiency of the power line, but also increases the safety hazard.

[0003] How to invent a pre-stranded strain clamp heart-shaped ring to improve these problems has become a problem to be solved by the technical personnel in the field. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a pre-stranded strain clamp heart-shaped ring, which aims at improving the problems that the traditional heart-shaped ring adopts the design of inserting a bolt at one end to hook the U-shaped ring, which often has problems such as insufficient tight connection, insecure fixation and easy deformation due to uneven stress, which not only affects the operation efficiency of the power line, but also increases the safety hazard.

[0005] The utility model is realized as follows: a pre-stranded strain clamp heart-shaped ring, including heart-shaped ring body, the heart-shaped ring body includes annular part, the both ends of the outer wall of one side of the annular part are integrally provided with parallel distribution extension on one side, the outer wall of the circumference of the annular part is provided with the annular groove for accommodating strain clamp, the one end of two extension parts is detachably connected with the clamping structure, the clamping structure includes clamping block, the both sides of the surface of the clamping block and the surface of one end towards the annular part are all provided with the limiting groove corresponding with the U-shaped ring, the surface of the top and bottom of the clamping block is provided with the limiting structure, the clamping block is connected with the extension through the fastener.

[0006] In a preferred technical scheme of the utility model, each limiting structure includes an insertion plate, the insertion plate is vertically arranged on the top and bottom surface of the clamping block and located on the corresponding side surface of the clamping block, a clamping plate is arranged on the other side surface of each insertion plate, the clamping plate is parallelly arranged on the top and bottom surface of the clamping block, each insertion plate is inserted into the corresponding insertion slot, two insertion slots are arranged at the end of the corresponding extension, and the side surface of each clamping plate is attached to the side surface of the corresponding extension.

[0007] In a preferred technical scheme of the utility model, the thickness of the clamping block is consistent with the spacing between the two extension parts.

[0008] In a preferred technical scheme of the utility model, the plug-in plate and the clamping plate are integrally formed with the clamping block.

[0009] In a preferred technical scheme of the utility model, the two clamping plates are provided with corresponding first limiting holes at one end surface of the annular part, the two extension parts are provided with corresponding first through holes at one side surface, the two first limiting holes and the first through holes are provided with first limiting screws, and the first limiting screws are provided with first nuts at the end portions.

[0010] In a preferred technical scheme of the utility model, the plug-in plate is provided with two second limiting holes at one side surface, the extension part is provided with a second through hole corresponding to the second limiting hole at one side surface, the extension part is provided with a side plate at one side, the side plate is provided with a second limiting screw at the four corner positions of the side surface facing the extension part, the second limiting screw is inserted into the corresponding second through hole and the second limiting hole and extends to the other side of the extension part, and the second limiting screw is provided with a second nut.

[0011] In a preferred technical scheme of the utility model, the four second nuts and the side surface of the extension part are further provided with a pad plate.

[0012] The utility model discloses a kind of pre-stranded strain clamp heart-shaped rings obtained by the above design, when using, by using clamping block to replace traditional bolt to realize the hooking of U-shaped ring, the limiting groove corresponding to the structure of U-shaped ring is set up in the three side surfaces of clamping block, the axial position of U-shaped ring can be realized, the possibility that its non-bending portion is deformed by the stress caused by rotation is avoided, and the stress area of the bending portion of U-shaped ring is also improved, the stability of the whole in high tension state is increased.Heart-shaped ring body is also improved the firmness of connection by the connecting and installation of limiting structure machine multiple fasteners of clamping block. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced to the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and other related drawings can be obtained by these drawings without the creative labor for the ordinary skilled in the art.

[0014] Figure 1 It is the schematic perspective view of the whole and strain clamp and connecting structure provided by the embodiments of the utility model;

[0015] Figure 2 An overall separation structure schematic perspective view is provided for the embodiment of the utility model;

[0016] Figure 3 An overall structure schematic perspective view of the heart-shaped ring body is provided for the embodiment of the utility model;

[0017] Figure 4 An overall structure schematic perspective view of the clamping structure is provided for the embodiment of the utility model.

[0018] In the figure: 1 - heart-shaped ring body; 2 - clamping structure; 3 - strain clamp; 4 - U-shaped ring; 101 - annular part; 102 - extension; 103 - annular groove; 104 - insertion slot; 105 - first through hole; 106 - second through hole; 201 - clamping block; 202 - limiting groove; 203 - insertion plate; 204 - clamping plate; 205 - first limiting hole; 206 - second limiting hole; 207 - first limiting screw; 208 - first nut; 209 - side plate; 210 - second limiting screw; 211 - pad; 212 - second nut. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be described clearly and completely below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a heart-shaped ring for pre-stranded strain clamp, including heart-shaped ring body 1, heart-shaped ring body 1 includes annular part 101, annular part 101 one side outer wall upper and lower ends are integrally provided with parallel distribution extension 102 to one side, annular part 101 circumference outer wall is provided with the annular groove 103 for accommodating strain clamp 3, two extensions 102 one end is detachably connected with clamping structure 2, clamping structure 2 includes clamping block 201, clamping block 201 two sides surface and the surface towards annular part 101 one end are all provided with the limiting groove 202 corresponding with U-shaped ring 4, clamping block 201 top and bottom surface are all provided with limiting structure, clamping block 201 is connected with extension 102 by fastener.

[0021] Please refer to Figures 2 to 4Each limiting structure comprises an insertion plate 203 vertically arranged on the top and bottom surfaces of the clamping block 201 and located on the corresponding side surface of the clamping block 201, and a clamping plate 204 arranged on the other side surface of each insertion plate 203, which is parallel to the top and bottom surfaces of the clamping block 201. Each insertion plate 203 is inserted into the corresponding insertion slot 104, and two insertion slots 104 are respectively arranged at the ends of the corresponding extension 102. One side surface of each clamping plate 204 is respectively attached to one side surface of the corresponding extension 102.

[0022] The two insertion plates 203, the clamping plate 204 and the clamping block 201 form a whole, which is clamped with the two extensions 102 through the insertion slots 104 arranged at the ends of the two extensions 102. The clamping block 201 supports the two clamping blocks 201 from the middle to the two sides, and the two clamping plates 204 limit the extension 102 from the outside to the inside, so as to avoid deformation of the whole due to excessive tension and ensure stability during use.

[0023] Further, the thickness of the clamping block 201 is consistent with the distance between the two extensions 102.

[0024] The thickness of the clamping block 201 is consistent with the distance between the two extensions 102, which can provide stable and effective support, avoid deformation of the extension 102 end due to stress, ensure the stability of the connection between the heart-shaped ring body 1 and the U-shaped ring 4, and improve the stability and durability of the whole.

[0025] Further, each insertion plate 203 and clamping plate 204 are integrally formed with the clamping block 201.

[0026] The insertion plate 203 and the clamping plate 204 are integrally formed with the clamping block 201, which improves the integrity and strength of the structure and avoids safety hazards caused by loose connections. The integrally formed design makes the structure of the heart-shaped ring more solid and improves its ability to withstand the tension of the wire.

[0027] Further, each insertion plate 203 and clamping plate 204 are integrally formed with the clamping block 201.

[0028] The first limiting screw 207 is arranged at the joint of the annular part 101 and the extension part 102, the clamping structure 2 is connected with the heart-shaped ring body 1 through cooperation of the first limiting screw 207 and the first nut 208, cooperation of the insertion plate 203 and the insertion slot 104 also realizes bidirectional limiting of the clamping structure 2 as a whole, thereby ensuring stability during use, meanwhile, the first limiting screw 207 also forms two independent hooking spaces in the heart-shaped ring body 1, the strain clamp 3 and the U-shaped ring 4 are respectively located in the corresponding spaces, and the strain clamp 3 and the U-shaped ring 4 can also relatively avoid the safety hazard caused by mutual friction of outer walls in the same hooking space when the tension is small.

[0029] Further, two second limiting holes 206 are arranged on one side surface of each insertion plate 203, a second through hole 106 corresponding to the second limiting hole 206 is arranged on one side surface of each extension part 102, and a side plate 209 is arranged on one side of the two extension parts 102, second limiting screws 210 are fixedly connected to the four corner positions of the one side surface of the extension part 102, each second limiting screw 210 is inserted into the corresponding second through hole 106 and the second limiting hole 206 and extends to the other side of the extension part 102, and a second nut 212 is threadedly connected to each second limiting screw 210.

[0030] In addition to being connected by the first limiting screw 207, the heart-shaped ring body 1 and the clamping structure 2 are further connected and limited by the four second limiting screws 210 arranged perpendicularly to the first limiting screw 207, thereby increasing the stress points of the heart-shaped ring as a whole and improving structural firmness and stability.

[0031] Further, a gusset plate 211 is arranged between the four second nuts 212 and the one side surface of the extension part 102.

[0032] The gusset plate 211 arranged between the second nut 212 and the extension part 102 can improve the stability of the connection between the second nut 212 and the second limiting screw 210, meanwhile, the gusset plate 211 and the side plate 209 are located on both sides of the extension part 102, and cooperation of the structure of the clamping block 201 can limit the U-shaped ring 4, so that the U-shaped ring 4 can only displace along the extension direction of the extension part 102 according to the cable tension in the corresponding hooking space, and cannot independently rotate relative to the clamping block 201, thereby avoiding the situation that the stress point of the U-shaped ring 4 may change when the U-shaped ring 4 is hooked by a traditional bolt, and further improving the stability effect.

[0033] Working principle: firstly, the strain clamp 3 is hooked between the two extension parts 102 in the annular groove 103 on the outer wall of the annular part 101, then the U-shaped ring 4 is clamped in the limiting groove 202 on the three side surfaces of the clamping block 201, then the structure formed by the clamping block 201, the plug plate 203 and the clamping plate 204 is inserted into the two extension parts 102 through the cooperation of the plug plate 203 and the insertion groove 104, the first limiting screw 207 is inserted into the first limiting hole 205 and the first through hole 105 penetrating through the two extension parts 102, the first nut 208 is connected with the bottom end of the first limiting screw 207 to realize the integral connection of the heart-shaped ring body 1 and the clamping structure 2, then the four second limiting screws 210 provided on one side surface of the side plate 209 are transversely inserted into the extension part 102, and then the gasket 211 and the second nut 212 are sequentially installed on the other side to realize the double connection and limiting of the clamping block 201, and the stability of the connection is ensured.

[0034] The preferred embodiments of the utility model are described above only, and are not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A heart-shaped ring for pre-stranded tension clamp, characterized by, The utility model provides a heart -shaped ring body, the heart -shaped ring body includes annular part, and both ends of one side outer wall of annular part are integrally provided with parallel distribution's extension on one side, and the outer wall of the circumference of annular part is provided with annular groove for accommodating strain clamp, and one end of two extension is detachably connected with the clamping structure, the clamping structure includes the clamping block, the both sides surface of clamping block and the surface of one end of annular part are all provided with the limiting groove corresponding with U type ring, and the top and bottom surface of clamping block are all provided with limiting structure, and clamping block is connected with extension through fastener.

2. The heart ring for pre-assembled strain clamp according to claim 1, characterized in that: Each limiting structure includes the plug -in board, the plug -in board is vertically arranged with the top and bottom surface of clamping block and is located the corresponding one side surface of clamping block, the other side surface of each plug -in board is provided with the clamping plate, the clamping plate is parallelly arranged with the top and bottom surface of clamping block, and each plug -in board is inserted in the corresponding slot, and two slots are arranged at the end of corresponding extension respectively, and the one side surface of each clamping plate is respectively attached with the one side surface of corresponding extension.

3. The heart ring for pre-assembled strain clamp according to claim 1, characterized in that: The thickness of the clamping block is consistent with the interval between the two extensions.

4. The heart ring for pre-assembled strain clamp according to claim 2, characterized in that: Each plug -in board and clamping plate are integrally formed with the clamping block.

5. The heart ring for preassembled strain clamp according to claim 2, characterized in that: The one end surface of both clamping plates is provided with corresponding first limiting hole, and the one side surface of both extensions is provided with corresponding first through -hole, and the first limiting screw is inserted in the first limiting hole and the first through -hole, and the end of first limiting screw is threadedly connected with first nut.

6. The heart ring for pre-assembled strain clamp according to claim 2, characterized in that: Two second limiting holes are arranged on the one side surface of each plug -in board, and the second through -hole corresponding with second limiting hole is arranged on the one side surface of each extension, and the side plate is arranged on the one side of both extensions, and the second limiting screw is fixedly connected with the second limiting screw on the one side surface of extension, and each second limiting screw is inserted in corresponding second through -hole and second limiting hole and extends to the other side of extension and is threadedly connected with second nut.

7. The preassembled thimble of claim 6, wherein: The second nut is further provided with the gusset plate between the one side surface of extension.

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