CN117353227B - Terminal strain clamp for cable - Google Patents
Terminal strain clamp for cable Download PDFInfo
- Publication number
- CN117353227B CN117353227B CN202311640175.4A CN202311640175A CN117353227B CN 117353227 B CN117353227 B CN 117353227B CN 202311640175 A CN202311640175 A CN 202311640175A CN 117353227 B CN117353227 B CN 117353227B
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- China
- Prior art keywords
- block
- tensioning
- connecting block
- cable
- piece
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- 239000000725 suspension Substances 0.000 claims abstract description 3
- 210000001624 hip Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 238000005452 bending Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
Abstract
The invention provides a terminal strain clamp for a cable, which belongs to the technical field of suspension devices for cables, and comprises: connecting block, side briquetting, tensioning piece and clamp plate. The side pressure blocks are two in number and are respectively arranged at two ends of the connecting block, and wedge-shaped grooves are formed in one side of the side pressure blocks opposite to each other; the section of the tensioning block is of an isosceles triangle structure, is arranged above the connecting block and between the two side pressure blocks, and the thickness of the tensioning block is smaller than the width of the wedge-shaped groove; the pressing plate is arranged below the connecting block, and two ends of the pressing plate extend to the lower part of the bottom surface of the side pressing block; the tensioning piece is used for driving the tensioning block and the pressing plate to move towards the connecting block at the same time; when the clamp plate contacts with the connecting block, the top surface of clamp plate compresses tightly in the bottom surface of side pressure piece, and the upper end of side pressure piece draws in to the centre, and tensioning piece side is parallel with the bottom surface in wedge groove, and the cable compresses tightly between tensioning piece side and the bottom surface in wedge groove. The cable can be bent during assembly, so that the construction flow can be effectively simplified, and the operation is more convenient.
Description
Technical Field
The invention belongs to the technical field of suspension devices for cables, and particularly relates to a tail end strain clamp for a cable.
Background
The strain clamp is an electric power fitting for fixing a cable and is mainly used for connecting the cable to a power tower or a transformer substation. The method can be divided into corner strain clamps, continuous strain clamps and terminal strain clamps according to the service conditions of the strain clamps. When the tail end strain clamp is used, a barb structure needs to be folded at the tail end of the cable so as to improve the connection stability of the strain clamp to the cable. In the prior art, an operator needs to bend a cable by means of a tool or by bare hands, then connects the cable to a strain clamp, and the operation process is relatively complicated, time-consuming and labor-consuming.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the tail end strain clamp for the cable, which can bend the cable during assembly, can effectively simplify the construction flow and is more convenient to operate.
In order to achieve the object of the invention, the following scheme is adopted:
a terminal strain clamp for a cable, comprising: connecting block, side briquetting, tensioning piece and clamp plate.
The side pressure blocks are two in number and are hinged to two ends of the connecting block in a symmetrical structure, and wedge-shaped grooves are formed in the inner parts of the opposite sides of the side pressure blocks;
the section of the tensioning block is of an isosceles triangle structure, the tensioning block is arranged above the connecting block and between the two side pressure blocks, the side walls corresponding to the two waists of the tensioning block face the side pressure blocks at the two ends respectively, and the thickness of the tensioning block is smaller than the width of the wedge-shaped groove;
the pressing plate is arranged below the connecting block, and two ends of the pressing plate extend to the lower part of the bottom surface of the side pressing block;
the tensioning piece is used for driving the tensioning block and the pressing plate to move towards the connecting block at the same time; when the clamp plate contacts with the connecting block, the top surface of clamp plate compresses tightly in the bottom surface of side pressure piece, and the upper end of side pressure piece draws in to the centre, and tensioning piece side is parallel with the bottom surface in wedge groove, and the cable compresses tightly between tensioning piece side and the bottom surface in wedge groove.
The invention has the beneficial effects that: the bending work of the cable is synchronously completed in the process of assembling the strain clamp, the outline of the cable after bending is completely matched with the compression track of the strain clamp, the construction process is effectively reduced, and the connection stability of the cable can be effectively ensured.
Drawings
The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the invention.
Fig. 1 shows a schematic overall structure of the present application when a cable is threaded.
Fig. 2 shows a cross-sectional view of the present application when a cable is threaded.
Fig. 3 shows a schematic structural view of the tensioning block.
Fig. 4 shows a schematic overall structure of the present application when the pressing plate is connected with the connection block.
Fig. 5 shows a cross-sectional view of the present application when the pressure plate is connected to the connection block.
Fig. 6 shows a schematic overall structure of the present application after assembly.
Fig. 7 shows a cross-sectional view of a preferred embodiment of the present application as assembled.
The marks in the figure: the clamping device comprises a connecting block-1, a side pressure block-2, a wedge-shaped groove-21, a U-shaped groove-22, a tensioning block-3, an annular groove-31, a U-shaped block-32, a convex block-33, a pressing plate-4, a tensioning piece-5, a jacking screw-6 and a locking nut-7.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the described embodiments of the present invention are some, but not all embodiments of the present invention.
As shown in fig. 1 and 2, a terminal strain clamp for a cable includes: the device comprises a connecting block 1, a side pressure block 2, a tensioning block 3 and a pressing plate 4.
Specifically, as shown in fig. 1 and 2, the lateral pressure blocks 2 are two in number and are hinged at two ends of the connecting block 1 in a symmetrical structure, and wedge-shaped grooves 21 are formed in the inner parts of opposite sides of the lateral pressure blocks 2.
Specifically, as shown in fig. 1 to 3, the cross section of the tensioning block 3 is in an isosceles triangle structure, which is arranged above the connecting block 1 and between the two side pressing blocks 2, and the side walls corresponding to the two waists of the tensioning block 3 face the side pressing blocks 2 at the two ends respectively, so that the bottom edge of the tensioning block 3 faces the connecting block 1, and the thickness of the tensioning block 3 is smaller than the width of the wedge-shaped groove 21.
Specifically, as shown in fig. 1 and 2, the pressing plate 4 is disposed below the connecting block 1, two ends of the pressing plate 4 extend to the lower side of the bottom surface of the side pressing block 2, and the pressing plate 4 is provided with a hanging ring, so that the strain clamp is conveniently installed and connected.
Specifically, as shown in fig. 1, 2, 4 and 5, a tensioning member 5 is used to drive the tensioning block 3 and the pressing plate 4 to move towards the connecting block 1 at the same time; when the top surface of clamp plate 4 and the bottom surface of connecting block 1 contact, the top surface of clamp plate 4 compresses tightly in the bottom surface of side pressure piece 2, and the upper end of side pressure piece 2 draws in towards the centre, and tensioning piece 3 side is parallel with the bottom surface of wedge groove 21, and the cable compresses tightly between tensioning piece 3 side and the bottom surface of wedge groove 21.
When connecting the cable, as shown in fig. 1 to 6, first, the cable is passed through the top surface of the side pressing block 2 and the bottom surface of the tensioning block 3 along the direction of the connecting line between the two side pressing blocks 2, at this time, the upper ends of the two side pressing blocks 2 are opened towards two sides, and in order to conveniently pass through the cable, the tensioning block 3 needs to be moved upwards so as to reduce the distance between the bottom surface of the tensioning block and the top surface of the side pressing block 2, so that the track of the cable when passing through is more gentle, and when the tensioning block 3 moves upwards to a preset position, the bottom surface of the tensioning block is always positioned in the length range of the side pressing block 2, so that the tensioning block is retracted between the side pressing blocks 2. Then, the tensioning piece 5 passes through the connecting block 1, the front end of the tensioning piece 5 is connected with the tensioning block 3, the rear end of the tensioning piece 5 is connected with the pressing plate 4, and the distance between the pressing plate 4 and the connecting block 1 can be controlled by using the tensioning piece 5; after the side pressing block 2 is opened, the bottom of the side pressing block is contacted with the pressing plate 4, and the opening angle of the side pressing block 2 can be limited by controlling the distance between the pressing plate 4 and the connecting block 1; simultaneously, the connecting block 1 is connected with the pressing plate 4 through the tensioning piece 5; then, the tensioning piece 5 is utilized to drive the pressing plate 4 and the tensioning block 3 to move towards the connecting block 1 at the same time, in the process, under the pressure action of the pressing plate 4, the bottom of the pushing side pressing block 2 swings upwards, and the upper end of the side pressing block 2 is gradually folded towards the middle; meanwhile, the tensioning block 3 is close to the connecting block 1 under the action of the tensioning piece 5, because two ends of the cable are respectively supported on the top surface of the side pressing block 2, the middle section is positioned at the bottom of the tensioning block 3, the cable is bent in a mode that the upper end of the side pressing block 2 is folded towards the middle and the tensioning block 3 moves downwards, and two ends of the bending part are respectively pressed between the side surface of the tensioning block 3 and the bottom surface of the wedge-shaped groove 21; after the top surface of the pressing plate 4 is contacted with the bottom surface of the connecting block 1, the top surface of the pressing plate 4 is pressed on the bottom surface of the side pressing block 2 so as to prevent the side pressing block 2 from being outwards opened, and the pressing force of the wedge-shaped groove 21 and the tensioning block 3 on the cable is kept stable; finally, the pressing plate 4 is fixed on the connecting block 1 by using a screw to process, and the tensioning piece 5 is removed; because the tensioning block 3 is of an isosceles triangle structure, the tension generated by the cable on the tensioning block can enable the tensioning block 3 to move towards the front end of the side pressing block 2, and the distance between the side surface of the tensioning block 3 and the bottom surface of the wedge-shaped groove 21 can be reduced by moving the tensioning block 3, so that the cable is pressed more tightly, and the connection stability of the cable is further improved; the bending work of the cable is synchronously completed in the process of assembling the strain clamp, the profile of the cable after bending is completely matched with the compression track of the strain clamp, so that the construction process is effectively reduced, and the connection stability of the cable can be effectively ensured; the tensioning piece 5 is of a rod body structure, the front end of the tensioning piece can be connected with the tensioning block 3 through threads, screws or pins, the rear end of the tensioning piece passes through the pressing plate 4, a flange is sleeved at the rear end of the rod body, the flange is located at the bottom of the pressing plate 4, and the tensioning block 3 and the pressing plate 4 can move towards the connecting block 1 simultaneously by pushing the flange towards the front end of the rod body.
Preferably, as shown in fig. 1, the top surfaces of the side pressing blocks 2 are provided with U-shaped grooves 22 for clamping cables, and the cables pass through the U-shaped grooves 22 in the processes of threading the cables and bending the cables, so that the cables can be effectively prevented from sliding down.
Preferably, as shown in fig. 3, an annular groove 31 is formed on the outer peripheral side of the tensioning block 3, the annular groove 31 at the bottom of the tensioning block 3 can be used for limiting the cable in the process of threading the cable so as to limit the threading position of the cable, and the annular groove 31 corresponding to the side surface of the tensioning block 3 can be used for limiting and compressing the cable in cooperation with the wedge-shaped groove 21 after bending so as to improve the stability when compressing the cable.
As the preferred scheme of this application, as shown in FIG. 7, the strain clamp still includes the tight screw 6 of top, it passes clamp plate 4 and connecting block 1 perpendicularly, the rear end of tight screw 6 of top is connected with clamp plate 4 or connecting block 1 through the screw thread, the front end of tight screw 6 of top compresses tightly in the bottom of tensioning piece 3, it is used for the initiative with tensioning piece 3 upwards jack-up for the lateral wall of tensioning piece 3 compresses tightly the cable initiative in wedge groove 21, thereby improve the connection stability to the cable, and can effectively prevent that tensioning piece 3 from removing to connecting block 1 in the use, and lead to the cable to become flexible, tight screw 6 of top is assembled after with clamp plate 4 and connecting block 1 fixed connection.
Further preferably, as shown in fig. 2, 3 and 7, a U-shaped block 32 is arranged at the bottom of the tensioning block 3, a space is arranged between the bottom surface of the groove of the U-shaped block 32 and the bottom surface of the tensioning block 3, and is used for threading a cable, and the bottom of the U-shaped block 32 is used for connecting the tensioning piece 5 and the tightening screw 6.
Preferably, as shown in fig. 4 and 6, when the pressing plate 4 contacts with the connecting block 1, the top surface of the pressing plate 4 is pressed against the bottom surface of the side pressing block 2, so that the side pressing block 2 is folded towards the middle; after the side blocks 2 are folded, the opposite side walls of the two side blocks 2 are parallel to each other and are arranged at intervals, the two end faces of the tensioning block 3 are provided with the convex blocks 33 with rectangular structures, the convex blocks 33 are slidably arranged in the intervals between the two side blocks 2, when the tensioning block 3 ascends or descends, the distance between the tensioning block 3 and the side blocks 2 on the two sides can be kept consistent, the side faces of the tensioning block 3 and the bottom face of the wedge-shaped groove 21 are always kept parallel, and therefore the compression face of a cable is prevented from being reduced.
As a preferred scheme of the application, the lug 33 is formed by two side plates of the U-shaped block 32; at the same time, the U-shaped block 32 can also be connected with the outer wall of the tensioning block 3 through the convex block 33.
Preferably, as shown in fig. 2 and 5, the tightening piece 5 is in a screw structure, the front end of the tightening piece is connected to the bottom of the tightening block 3 through threads, the back end of the tightening piece 5 is provided with a locking nut 7, the locking nut 7 is located below the pressing plate 4, when in use, the tightening piece 5 firstly passes through the pressing plate 4 and the connecting block 1, the front end of the tightening piece 5 is connected to a threaded hole in the bottom of the tightening block 3, and then the locking nut 7 is rotated, so that the tightening block 3 and the pressing plate 4 are pulled to be close to each other towards the middle, and in the process of rotating the locking nut 7, the tightening piece 5 can be kept fixed by means of a tool, otherwise, the tightening piece rotates along with the locking nut 7.
Preferably, as shown in fig. 2 and 5, a section of the tensioning member 5 penetrating through the connecting block 1 is of a polished rod structure and is used for sliding fit with the connecting block 1, so as to improve the stability of the tensioning member 5 and the tensioning block 3 during assembly.
The foregoing description of the preferred embodiments of the invention is merely exemplary and is not intended to be exhaustive or limiting of the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (9)
1. A terminal strain clamp for a cable, comprising: the device comprises a connecting block (1), a side pressure block (2), a tensioning block (3) and a pressing plate (4);
the number of the side pressing blocks (2) is two, the side pressing blocks are hinged to the two ends of the connecting block (1) in a symmetrical structure, and wedge-shaped grooves (21) are formed in the inner parts of the opposite sides of the side pressing blocks (2);
the section of the tensioning block (3) is of an isosceles triangle structure, the tensioning block is arranged above the connecting block (1) and between the two side pressure blocks (2), the side walls corresponding to the two waists of the tensioning block (3) face the side pressure blocks (2) at the two ends respectively, and the thickness of the tensioning block (3) is smaller than the width of the wedge-shaped groove (21);
the pressing plate (4) is arranged below the connecting block (1), and two ends of the pressing plate (4) extend to the lower part of the bottom surface of the side pressing block (2);
the tensioning block (3) and the pressing plate (4) are connected with the same tensioning piece (5), and the tensioning piece (5) is used for driving the tensioning block (3) and the pressing plate (4) to move towards the connecting block (1) at the same time; when clamp plate (4) and connecting block (1) contact, the top surface of clamp plate (4) compresses tightly in the bottom surface of side pressure piece (2), and the upper end of side pressure piece (2) is drawn in towards the centre, and tensioning piece (3) side is parallel with the bottom surface of wedge groove (21), and the cable compresses tightly between tensioning piece (3) side and the bottom surface of wedge groove (21).
2. The terminal strain clamp for the cable according to claim 1, wherein the top surfaces of the side pressure blocks (2) are provided with U-shaped grooves (22) for clamping the cable.
3. A terminal strain clamp for cables according to claim 1 or 2, characterized in that the outer circumferential side of the tensioning block (3) is provided with an annular groove (31).
4. The terminal strain clamp for a cable according to claim 1, further comprising a tightening screw (6) vertically penetrating through the pressing plate (4) and the connecting block (1), wherein the rear end of the tightening screw (6) is connected with the pressing plate (4) or the connecting block (1) through threads, and the front end of the tightening screw (6) is pressed on the bottom of the tensioning block (3).
5. The terminal strain clamp for the cable according to claim 4, wherein a U-shaped block (32) is arranged at the bottom of the tensioning block (3), a space is reserved between the bottom surface of the groove of the U-shaped block (32) and the bottom surface of the tensioning block (3) and is used for threading the cable, and the bottom of the U-shaped block (32) is used for connecting the tensioning piece (5) and the jacking screw (6).
6. The terminal strain clamp for cables according to claim 1, wherein when the pressing plate (4) is in contact with the connecting block (1), opposite side walls of the two side pressing blocks (2) are parallel to each other and are arranged at intervals, protruding blocks (33) with rectangular structures are arranged on two end faces of the tensioning block (3), and the protruding blocks (33) are slidably arranged in the intervals between the two side pressing blocks (2).
7. The terminal strain clamp for the cable according to claim 1, wherein the tensioning piece (5) is of a screw structure, the front end of the tensioning piece is connected to the bottom of the tensioning block (3) through threads, the rear end of the tensioning piece (5) is provided with a locking nut (7), and the locking nut (7) is located below the pressing plate (4).
8. The terminal strain clamp for cables according to claim 7, wherein a section of the tension member (5) passing through the connecting block (1) is of a polish rod structure for sliding fit with the connecting block (1).
9. A terminal strain clamp for cables according to claim 1, characterized in that the pressure plate (4) is provided with a suspension ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311640175.4A CN117353227B (en) | 2023-12-04 | 2023-12-04 | Terminal strain clamp for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311640175.4A CN117353227B (en) | 2023-12-04 | 2023-12-04 | Terminal strain clamp for cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117353227A CN117353227A (en) | 2024-01-05 |
| CN117353227B true CN117353227B (en) | 2024-01-26 |
Family
ID=89363488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311640175.4A Active CN117353227B (en) | 2023-12-04 | 2023-12-04 | Terminal strain clamp for cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117353227B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011259587A (en) * | 2010-06-08 | 2011-12-22 | Asahi Electric Works Ltd | Wedge type anchor clamp |
| CN105890979A (en) * | 2016-04-06 | 2016-08-24 | 吉林大学 | Pre-tightening type mechanical clamping mechanism for combined load material mechanical property testing |
| CN208189961U (en) * | 2018-01-17 | 2018-12-04 | 东莞市金晟电业有限公司 | A kind of wire twisting machine |
| CN208555688U (en) * | 2018-06-28 | 2019-03-01 | 中山百得厨卫有限公司 | A kind of U-shaped Bending Mould of sheet metal component |
| CN208810982U (en) * | 2018-07-18 | 2019-05-03 | 中山精达特克机械有限公司 | A kind of self-locking driving device and the bending mechanism with the device |
| CN110994485A (en) * | 2019-10-14 | 2020-04-10 | 武汉船用机械有限责任公司 | Cable fixing clamp |
| CN210792058U (en) * | 2019-10-28 | 2020-06-19 | 江苏洪门实业有限公司 | Hot bending device for processing acrylic plate |
| CN211374321U (en) * | 2019-12-12 | 2020-08-28 | 常州工业职业技术学院 | Wedge-shaped chuck for universal testing machine |
| CN112044993A (en) * | 2020-08-28 | 2020-12-08 | 盛亚红 | Curtain wall aluminum plate bending forming processing machine |
| CN219108251U (en) * | 2023-02-15 | 2023-06-02 | 湖南省高马山农业有限公司 | Seedling device is repaiied in woodland |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8220113B2 (en) * | 2010-11-19 | 2012-07-17 | Hitco, Ltd. | Smart clamp device for connecting tubing |
-
2023
- 2023-12-04 CN CN202311640175.4A patent/CN117353227B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011259587A (en) * | 2010-06-08 | 2011-12-22 | Asahi Electric Works Ltd | Wedge type anchor clamp |
| CN105890979A (en) * | 2016-04-06 | 2016-08-24 | 吉林大学 | Pre-tightening type mechanical clamping mechanism for combined load material mechanical property testing |
| CN208189961U (en) * | 2018-01-17 | 2018-12-04 | 东莞市金晟电业有限公司 | A kind of wire twisting machine |
| CN208555688U (en) * | 2018-06-28 | 2019-03-01 | 中山百得厨卫有限公司 | A kind of U-shaped Bending Mould of sheet metal component |
| CN208810982U (en) * | 2018-07-18 | 2019-05-03 | 中山精达特克机械有限公司 | A kind of self-locking driving device and the bending mechanism with the device |
| CN110994485A (en) * | 2019-10-14 | 2020-04-10 | 武汉船用机械有限责任公司 | Cable fixing clamp |
| CN210792058U (en) * | 2019-10-28 | 2020-06-19 | 江苏洪门实业有限公司 | Hot bending device for processing acrylic plate |
| CN211374321U (en) * | 2019-12-12 | 2020-08-28 | 常州工业职业技术学院 | Wedge-shaped chuck for universal testing machine |
| CN112044993A (en) * | 2020-08-28 | 2020-12-08 | 盛亚红 | Curtain wall aluminum plate bending forming processing machine |
| CN219108251U (en) * | 2023-02-15 | 2023-06-02 | 湖南省高马山农业有限公司 | Seedling device is repaiied in woodland |
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| Publication number | Publication date |
|---|---|
| CN117353227A (en) | 2024-01-05 |
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