CN210985571U - Parallel cluster type strain clamp - Google Patents
Parallel cluster type strain clamp Download PDFInfo
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- CN210985571U CN210985571U CN202020020597.7U CN202020020597U CN210985571U CN 210985571 U CN210985571 U CN 210985571U CN 202020020597 U CN202020020597 U CN 202020020597U CN 210985571 U CN210985571 U CN 210985571U
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- shaped inner
- type strain
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Abstract
The utility model discloses a parallel bundling type strain clamp, the cable clamp body is provided with a slotted opening, the cable can be placed into a wedge-shaped inner cavity in a parallel arrangement mode through the slotted opening without being divided during installation, then two wedge blocks are inserted, a cable clamping groove structure formed by mutually buckling the two wedge blocks is utilized to clamp the cable, then the cable clamp body is pulled to ensure that a wedge block structure is inserted into the wedge-shaped inner cavity, the balanced convex tooth structure on the wedge block is extruded to generate deformation with different degrees, the stress of the wedge block structure is ensured to be uniform, by adopting the technical scheme, the wedge block under the action of tension generates a tensile force keeping the relative positions of the two wedge blocks fixed when sliding towards the wedge-shaped inner cavity, the wedge block structural design can lead the wedge block to be more and more tightened in the wedge-shaped inner cavity to play a self-locking role, and further applies continuous and reliable pretightening force to the two wedge blocks with the help of the deformation of, thereby ensuring that the clamping force applied to the cable by the wedge block is balanced and stable.
Description
Technical Field
The utility model relates to an electric power fitting technical field, concretely relates to parallelly connected cluster type strain clamp.
Background
In recent years, in the transformation and upgrading of urban and rural low-voltage distribution networks, parallel bunched aerial cables are widely applied to rural power grid four-wire system power supply modes and urban power grid living communities for power supply, and are approved and favored by users and power departments due to the advantages of being splittable, combinable, low in installation cost and maintenance cost, energy-saving, consumption-reducing, electricity-stealing, convenient to construct, safe, reliable and the like. When the parallel bunched overhead cable is installed and fixed, the traditional strain clamp needs to separate each wire core and then operate and fix the wire core respectively, so that the operation is complex, the technical requirement is high, and the wire is easy to damage.
In order to simplify the installation steps and improve the installation efficiency, chinese patent CN102136708A discloses a parallel bundling type insulated cable strain clamp, which comprises a body provided with a wedge-shaped cavity, wherein two wedge cores used in pair are arranged in the wedge-shaped cavity, a pull rod is connected to the body, the body is formed by movably butting two half shells with the wedge-shaped cavity inside, the butting positions of the two half shells are provided with dovetail groove structures for interconnection, two wedge cores are fixed in a butt-clamping manner according to the two half shells, in order to make the two wedge cores more stable in matching and positioning, one of the two wedge cores is provided with a pricking point corresponding to a pricking bar penetrating through the middle of a parallel bundling insulated cable on a clamping surface, and is provided with a convex square column, and the other wedge core is provided with a square column corresponding to and matched with the square column.
The existing strain clamp still has the following technical problems that when two wedge cores are installed, a cable is firstly cut into two parts, then the square column and the square hole are matched to form an installation whole, then two half shells are folded and clamped by the dovetail groove structure, the installation structure is complex, the installation difficulty is large, the operation is inconvenient, the wedge cores are stressed unevenly when being clamped, and therefore the clamping force applied to the cable is not balanced and stable enough.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the mounting structure between the fastener body among the prior art and the voussoir complicated, and the installation degree of difficulty is big, operates inconveniently to and the not enough balanced stable problem of holding power to the cable is applyed, thereby provide a fastener body and voussoir simple to operate, easy operation is swift, and the holding power to the cable is balanced stable, the strain clamp of parallel bunched cable that the centre gripping reliability is high.
The utility model provides a parallel cluster type strain clamp, include:
The wire clamp comprises a wire clamp body, a wire clamp body and a clamping piece, wherein the wire clamp body comprises a wedge-shaped inner cavity and a slotted opening, the wedge-shaped inner cavity extends along the length direction of the wire clamp body, and the slotted opening is formed in the wire clamp body and is communicated with the wedge-shaped inner cavity;
The wedge block structure is suitable for being inserted and arranged in the wedge-shaped inner cavity and comprises two oppositely arranged wedge blocks and a wire clamping groove structure which is arranged between the two wedge blocks and can accommodate a plurality of cables arranged in parallel;
And the plurality of balanced convex tooth structures are respectively arranged on the side walls of the two wedge blocks along the length direction of the wire clamp body, and the balanced convex tooth structures are extruded to deform when the two wedge blocks are inserted into the wedge-shaped inner cavity.
In the parallel cluster strain clamp, the balance convex tooth structure comprises a plurality of elastic convex teeth arranged at intervals along the length direction of the clamp body.
In the parallel cluster type strain clamp, a guide structure for guiding the wedge block structure to be inserted into the wedge-shaped inner cavity is arranged between the clamp body and the wedge block structure.
In the parallel cluster type strain clamp, the guide structure comprises a guide rail arranged on the clamp body along the length direction of the clamp body and a guide groove arranged on the wedge block corresponding to the guide rail, and the wedge block is inserted into the clamp body through the mutual matching of the guide rail and the guide groove.
In the parallel cluster type strain clamp, the wire clamping groove structure comprises a plurality of arc grooves which are respectively arranged on the two wedge blocks at intervals, and the arc grooves are linearly arranged on the wedge blocks in an extending manner.
In the parallel cluster type strain clamp, the arc groove is provided with a plurality of anti-slip teeth at intervals along the extending direction.
In the parallel cluster type strain clamp, a guide inclined plane is arranged outside the notch.
In the parallel cluster type strain clamp, a plurality of counter bores are formed in the bottom surfaces, in contact with the clamp body in a fitting mode, of the two wedge blocks.
In the parallel cluster type strain clamp, the clamp body is provided with a U-shaped pull rod, and fastening structures are arranged between two ends of the pull rod and the clamp body.
In the parallel cluster type strain clamp, the fastening structure comprises a through hole arranged on the clamp body and a nut in threaded connection with one end of the pull rod penetrating through the through hole.
Compared with the prior art, the technical scheme of the utility model have the following advantage:
1. The utility model provides a parallel bunched strain clamp, be equipped with the notch on the fastener body, the cable need not to cut apart when the installation can be put into through the notch in parallel arrangement mode in the wedge inner chamber, insert two then the voussoir and utilize two the double-layered groove structure that the mutual lock of voussoir formed centre gripping the cable, then stimulate the fastener body makes the voussoir structure insert in the wedge inner chamber, balanced dogtooth structure on the voussoir takes place the deformation of different degrees by the extrusion at this moment, play the atress cushioning effect to the voussoir structure, guarantee the voussoir structure atress is even, adopt this technical scheme, produce the tensile force that keeps the two relative position fixed when the voussoir of tensile force effect slides to the wedge inner chamber, this kind of voussoir structural design can make the voussoir in the wedge inner chamber pull more and more tight in order to play the effect of auto-, and still exert continuous reliable pretightning force to two voussoirs with the help of the deformation effect of balanced dogtooth structure, make the voussoir evenly stable at the in-process atress that inserts the wedge inner chamber to guarantee that the voussoir is balanced stable to the grip strength that the cable was applyed, this kind of strain clamp's simple structure has reduced the installation degree of difficulty, and simple to operate is swift, promotes the performance and the life of product.
2. The utility model provides a parallel bunched type strain clamp, guide structure includes the edge fastener body length direction sets up guide rail on the fastener body, and corresponding the guide rail sets up guide way on the voussoir, this kind of structure sets up, makes the voussoir inserts during the wedge inner chamber along guide rail direction removes, and through the guide rail with the direction cooperation of guide way makes the voussoir accuracy inserts in the fastener body, guarantee that the voussoir is parallel with the fastener body when sliding in the fastener body for the voussoir is exerted the power of holding reliable and stable to the cable.
3. The utility model provides a parallel cluster type strain clamp, the arc groove has a plurality of anti-skidding teeth along its extending direction interval arrangement, the anti-skidding tooth is arranged for the wave dogtooth structure on the arc groove, through the anti-skidding tooth increases the frictional force of wire and voussoir installation contact, has ensured the reliability of strain clamp grip.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.
Fig. 1 is a bottom view of the parallel bundling type strain clamp of the present invention;
Fig. 2 is a left side view of the parallel bundling type strain clamp of the present invention without a pull rod;
FIG. 3 is a schematic structural view of the wire clamp body shown in FIG. 1;
FIG. 4 is a cross-sectional view of the wedge shown in FIG. 2;
FIG. 5 is a schematic view of the wedge shown in FIG. 2 without contacting the rail;
FIG. 6 is a schematic view of the wedge shown in FIG. 2 in contact with the rail;
Description of reference numerals:
1-a wire clamp body; 11-a wedge-shaped inner cavity; 12-grooving opening; 13-a guide ramp; 14-a pull rod; 15-a through hole; 16-a nut; 2-a wedge structure; 21-wedge block; 22-a wire clamping groove structure; 23-balanced lobe configuration; 24-elastic lobes; 25-arc groove; 26-anti-slip teeth; 27-counter bore; 3-a cable; 4-a guide structure; 41-a guide rail; 42-guide groove.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
The present embodiment is described in detail below with reference to the accompanying drawings:
The utility model provides a parallel cluster type strain clamp as shown in figures 1-6, include:
The wire clamp comprises a wire clamp body 1 and a wire clamp body, wherein the wire clamp body 1 comprises a wedge-shaped inner cavity 11 and a slotted opening 12, the wedge-shaped inner cavity 11 extends along the length direction of the wire clamp body, and the slotted opening 12 is formed in the wire clamp body 1 and is communicated with the wedge-shaped inner cavity 11;
The wedge block structure 2 is suitable for being inserted into the wedge-shaped inner cavity 11 and comprises two oppositely arranged wedge blocks 21 and a wire clamping groove structure 22 which is arranged between the two wedge blocks 21 and can accommodate a plurality of parallel cables 3;
The plurality of balance convex tooth structures 23 extend along the length direction of the wire clamp body 1 and are arranged on the side walls of the two wedges 21 respectively, and the balance convex tooth structures 23 are extruded to deform when the two wedges 21 are inserted into the wedge-shaped inner cavity 11.
The above embodiment is a core technical solution of this embodiment, the cable clamp body 1 is provided with the slotted opening 12, the cable 3 can be placed into the wedge-shaped inner cavity 11 in a parallel arrangement manner through the slotted opening 12 without being split during installation, then the two wedges 21 are inserted, the cable 3 is clamped by the slot clamping structure 22 formed by the two wedges 21 being buckled with each other, and then the cable clamp body 1 is pulled to insert the wedge structure 2 into the wedge-shaped inner cavity 11, at this time, the balanced tooth structures 23 on the wedges 21 are deformed in different degrees by being squeezed, so as to exert a stress buffering effect on the wedge structure 2, and ensure that the wedge structure 2 is uniformly stressed, by adopting the technical solution, when the wedge 21 under the tensile force slides to the wedge-shaped inner cavity 11, a tensile force for keeping the two fixed relative positions is generated, and the wedge structure 2 is designed to make the wedge 21 more and more tight in the wedge-shaped inner cavity 11 to play a self-locking effect, and still exert continuous reliable pretightning force to two voussoirs 21 with the help of the deformation effect of balanced dogtooth structure 23, make voussoir 21 atress evenly stable in the in-process of inserting wedge inner chamber 11 to guarantee that voussoir 21 is balanced stable to the grip strength that cable 3 was applyed, this kind of strain clamp's simple structure has reduced the installation degree of difficulty, and simple to operate is swift, promotes the performance and the life of product.
As a preferred embodiment, the balance protruding tooth structure 23 includes a plurality of elastic protruding teeth 24 disposed at intervals along the length direction of the wire clamp body 1, and such elastic protruding teeth 24 can generate deformation buffering in different degrees according to different stress degrees when the wedge 21 is inserted into the wedge-shaped inner cavity 11, so that the stress of the wedge 21 is more uniform, and an elastic fastening force is generated between the two wedges 21 and the wire clamp body 1, thereby enhancing the installation and fastening effects of the wedge 21 and improving the stability of the product during use.
The specific arrangement of the guide structure 4 is described in detail below with reference to fig. 2-3 and 6:
A guide structure 4 for guiding the wedge structure 2 to be inserted into the wedge-shaped inner cavity 11 is arranged between the wire clamp body 1 and the wedge structure 2, specifically, as shown in fig. 3 and fig. 6, the guide structure 4 includes a guide rail 41 arranged on the wire clamp body 1 along the length direction of the wire clamp body 1, so that the wedge 21 is inserted into the wedge-shaped inner cavity 11 to move along the guide rail 41, and a guide groove 42 arranged on the wedge 21 corresponding to the guide rail 41, the wedge 21 can be accurately inserted into the wire clamp body 1 through the guide fit of the guide rail 41 and the guide groove 42, so that the wedge 21 is prevented from being displaced in the insertion process, and is parallel to the wire clamp body 1 when the wedge 21 slides in the wire clamp body 1, so that the wedge 21 exerts stable and reliable gripping force on a cable, and is convenient and rapid to install.
As a preferred embodiment, the wire clamping groove structure 22 includes four arc grooves 25 respectively arranged on two wedge blocks 21 at intervals, the arc grooves 25 are linearly extended and arranged on the wedge blocks 21, and through the structural arrangement, the cable 3 can be directly tiled on the arc grooves 25 without subdividing the cable 3, so that the operation is simple and the installation is convenient. In order to improve the clamping and fastening effect of the cable clamping groove on the cable 3 in the cable clamping groove, as shown in fig. 4, a plurality of anti-slip teeth 26 are arranged at intervals in the arc groove 25 along the extending direction of the arc groove, the anti-slip teeth 26 are of a convex tooth structure arranged on the arc groove 25 in a wave shape, the friction force of the cable 3 in installation contact with the wedge block 21 is increased through the anti-slip teeth 26, and the reliability of the clamping force of the strain clamp is guaranteed.
As shown in fig. 2, a guide inclined plane 13 is arranged on the outer side of the notch 12 to enlarge the opening area of the notch 12, so that the cable 3 can be more conveniently and rapidly loaded into the wedge-shaped inner cavity 11, and the installation efficiency is improved.
As a preferable mode, as shown in fig. 4 to 6, a plurality of counter bores 27 are provided on the bottom surfaces of the two wedges 21, which are in contact with the cable clamp body 1, and the counter bores 27 can save materials, reduce the weight of the wedges 21, and also deform when the wedges 21 are stressed, so as to buffer the extrusion force of the cable 3 on the anti-slip teeth 26 and avoid damage to the anti-slip teeth 26.
The specific structure of the pull rod 14 is described in detail below with reference to fig. 1:
Fastener body 1 is equipped with the pull rod 14 of U type, through pull rod 14 pulling fastener body 1 makes voussoir 21 inserts in the fastener body 1, just the both ends of pull rod 14 with be equipped with fastening structure between the fastener body 1, fastening structure is including setting up through-hole 15 on the fastener body 1 and with pass 14 one end threaded connection's of pull rod 16 of through-hole 15 nut 14 pulling during fastener body 1, nut 16 with through-hole 15 cooperation counterbalance makes pull rod 14 with fastener body 1 links into an organic whole, and the atress is more reliable and more stable.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides a parallel bunched form strain clamp which characterized in that includes:
The wire clamp comprises a wire clamp body (1) and a wire clamp body, wherein the wire clamp body comprises a wedge-shaped inner cavity (11) extending along the length direction of the wire clamp body, and a notch (12) which is arranged on the wire clamp body (1) and communicated with the wedge-shaped inner cavity (11);
The wedge block structure (2) is suitable for being inserted into the wedge-shaped inner cavity (11) and comprises two oppositely arranged wedge blocks (21) and a wire clamping groove structure (22) which is arranged between the two wedge blocks (21) and can contain a plurality of parallel cables (3);
The wire clamp comprises a plurality of balance convex tooth structures (23), wherein the balance convex tooth structures (23) extend along the length direction of the wire clamp body (1) and are arranged on the side walls of the two wedge blocks (21), and the balance convex tooth structures (23) are extruded to deform when the two wedge blocks (21) are inserted into the wedge-shaped inner cavity (11).
2. The parallel cluster type strain clamp according to claim 1, wherein the balance convex tooth structure (23) comprises a plurality of elastic convex teeth (24) arranged at intervals along the length direction of the clamp body (1).
3. The parallel cluster type strain clamp according to claim 1, wherein a guide structure (4) for guiding the wedge structure (2) to be inserted into the wedge-shaped inner cavity (11) is arranged between the clamp body (1) and the wedge structure (2).
4. The parallel cluster strain clamp of claim 3, wherein the guide structure (4) comprises a guide rail (41) disposed on the clamp body (1) along the length of the clamp body (1), and a guide groove (42) disposed on the wedge (21) corresponding to the guide rail (41), the wedge (21) being inserted into the clamp body (1) by the cooperation of the guide rail (41) and the guide groove (42).
5. The parallel cluster type strain clamp according to any one of claims 1 to 4, wherein the wire clamping groove structure (22) comprises a plurality of arc grooves (25) respectively arranged on the two wedges (21) at intervals, and the arc grooves (25) are linearly extended and arranged on the wedges (21).
6. The parallel cluster type strain clamp according to claim 5, wherein the arc groove (25) is provided with a plurality of anti-slip teeth (26) at intervals along the extending direction thereof.
7. The parallel cluster type strain clamp according to claim 6, wherein a guide slope (13) is provided outside the slotted opening (12).
8. The parallel cluster type strain clamp according to claim 7, wherein a plurality of counter bores (27) are arranged on the bottom surface of the two wedges (21) which is in contact with the clamp body (1).
9. The parallel cluster type strain clamp according to any one of claims 6 to 8, characterized in that the clamp body (1) is provided with a U-shaped pull rod (14), and a fastening structure is arranged between two ends of the pull rod (14) and the clamp body (1).
10. The parallel cluster type strain clamp according to claim 9, wherein the fastening structure comprises a through hole (15) provided in the clamp body (1), and a nut (16) screwed to an end of the tension rod (14) passing through the through hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020020597.7U CN210985571U (en) | 2020-01-06 | 2020-01-06 | Parallel cluster type strain clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020020597.7U CN210985571U (en) | 2020-01-06 | 2020-01-06 | Parallel cluster type strain clamp |
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| Publication Number | Publication Date |
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| CN210985571U true CN210985571U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020020597.7U Active CN210985571U (en) | 2020-01-06 | 2020-01-06 | Parallel cluster type strain clamp |
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| CN (1) | CN210985571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115021183A (en) * | 2022-06-19 | 2022-09-06 | 董楠楠 | High-voltage line electric tension-resistant wire clamp |
-
2020
- 2020-01-06 CN CN202020020597.7U patent/CN210985571U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115021183A (en) * | 2022-06-19 | 2022-09-06 | 董楠楠 | High-voltage line electric tension-resistant wire clamp |
| CN115021183B (en) * | 2022-06-19 | 2024-02-23 | 浙江永裕金具有限公司 | High-voltage line electric tension clamp |
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