CN215008595U - Contact surface adjustable parallel groove clamp - Google Patents
Contact surface adjustable parallel groove clamp Download PDFInfo
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- CN215008595U CN215008595U CN202121646748.0U CN202121646748U CN215008595U CN 215008595 U CN215008595 U CN 215008595U CN 202121646748 U CN202121646748 U CN 202121646748U CN 215008595 U CN215008595 U CN 215008595U
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- cover plate
- contact surface
- groove
- middle cover
- rotating shaft
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- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 244000291564 Allium cepa Species 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000010167 Allium cepa var aggregatum Nutrition 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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Abstract
The utility model discloses a contact surface adjustable parallel groove clamp relates to electric power fitting technical field. The cable clamp comprises a cable clamp body with a lower cable groove and a cover plate with an upper cable groove, wherein the upper cable groove and the lower cable groove surround to form a clamping space for clamping a power transmission line, and the wall of the upper cable groove is a contact surface; the cover plate comprises a middle cover plate with a first contact surface and a side cover plate which is rotatably connected with the middle cover plate and has a second contact surface, the first contact surface and the second contact surface form the contact surfaces, and a rotating axis between the middle cover plate and the side cover plate is parallel to the extending direction of the upper wire groove and is positioned in a curved surface where the groove wall of the upper wire groove is positioned.
Description
Technical Field
The utility model belongs to the technical field of the electric power fitting, further relate to a contact surface adjustable parallel groove clamp.
Background
The parallel groove clamp is an important electric power fitting product, is usually used for connecting aluminum stranded wires or steel-cored aluminum stranded wires with medium and small cross sections and overhead lightning conductors at positions which do not bear tension, and is also used for jumper connection of non-linear towers. The parallel groove clamp is the most widely applied power connection connector in China at present, and aims to connect two power transmission lines so that power transmission can be continued. The electric power fitting is a weak link in a power transmission and distribution line, has high requirement on resistance, and obviously causes the phenomena of burning, fusing and the like of the line due to the heating phenomenon during the operation of the line if the resistance is overlarge, thereby causing large-area power failure and causing serious economic loss.
Means to reduce the resistance between the parallel groove clamp and the transmission line include increasing the contact area. However, the cover plate and the clamp body of existing merge racks are typically stamped and formed as a single piece. The contact surface of the existing parallel groove clamp is a fixed and unchangeable whole, so that when the existing parallel groove clamp is used, if the clamped power transmission line is not completely matched with the fixed wire clamp, the contact surface of the wire clamp is not tightly attached to the power transmission line.
SUMMERY OF THE UTILITY MODEL
Therefore, the parallel groove clamp with the adjustable contact surface is provided by the inventor, the shape of the contact surface of the parallel groove clamp can be adjusted and changed, and the parallel groove clamp can be suitable for power transmission lines with various sizes. The application solves the problem with the following technical points:
a parallel groove clamp with an adjustable contact surface comprises a clamp body with a lower groove and a cover plate with an upper groove, wherein the upper groove and the lower groove surround to form a clamping space for clamping a power transmission line, and the groove wall of the upper groove is a contact surface; the cover plate comprises a middle cover plate with a first contact surface and a side cover plate which is rotatably connected with the middle cover plate and has a second contact surface, the first contact surface and the second contact surface form the contact surfaces, and a rotating axis between the middle cover plate and the side cover plate is parallel to the extending direction of the upper wire groove and is positioned in a curved surface where the groove wall of the upper wire groove is positioned.
As described above, the present application provides a contact surface adjustable parallel groove clamp. Similar with prior art, this scheme including have the fastener body of lower wire casing, have the apron of last wire casing, go up the wire casing and enclose with lower wire casing and form the centre gripping space that is used for centre gripping transmission line, the cell wall of going up the wire casing is the contact surface. Furthermore, the cover plate in the application also comprises a middle cover plate with a first contact surface and a side cover plate which is rotationally connected with the middle cover plate and is provided with a second contact surface, and the first contact surface and the second contact surface form the contact surfaces. Because the middle cover plate and the side cover plate can rotate mutually, the angle between the first contact surface and the second contact surface contained in the contact surface is adjustable, and the contact surface is adjustable. In the process of actually installing the wire clamp and the power transmission line, a worker can adjust the angle between the middle cover plate and the side cover plate according to the size of the power transmission line actually clamped, particularly the size of the shaft diameter of the power transmission line, and then the shape of the contact surface, namely the groove wall of the upper wire groove, is changed, so that the clamping and the fitting of the contact surface to the circumferential surface of the power transmission line are tighter. Because last line shallot o is usually the arc, therefore first contact surface and second contact surface also are usually the cambered surface, cause when avoiding well apron and side cap relative rotation to cause first contact surface and second contact surface alternate each other and can't form a complete contact surface, set up from this: the rotating axis between the middle cover plate and the side cover plate is parallel to the extending direction of the upper wire groove and is positioned in the curved surface of the groove wall of the upper wire groove.
The further technical scheme is as follows:
the wire clamp comprises a wire clamp body, a middle cover plate, two side cover plates and a locking mechanism, wherein the middle cover plate is provided with one side cover plate, the two side cover plates are respectively arranged at two sides of the middle cover plate in the direction perpendicular to the extending direction of the wire feeding groove, the fastener for limiting the relative up-down freedom degree of the middle cover plate and the wire clamp body is arranged between the middle cover plate and the wire clamp body, and the locking mechanism for limiting the relative rotation of the side cover plate and the middle cover plate is arranged between the side cover plate and the middle cover plate. In this technical feature, the number of the middle cover plate and the side cover plate and the relative positional relationship between the cover plates are specifically defined. Since the parallel groove clamp is used to connect two power transmission lines, there are two clamping spaces for clamping the power transmission lines, and thus, the number of the side cover plates is also set to two. And a fastener for limiting the relative vertical freedom degree of the middle cover plate and the wire clamp body is arranged between the middle cover plate and the wire clamp body, and a locking mechanism for limiting the relative rotation of the side cover plate and the middle cover plate is arranged between the side cover plate and the middle cover plate. The fastener is fixed with the middle cover plate, the middle cover plate is used as a positioning parent body, and the side cover plate and the middle cover plate are fixed through the locking mechanism, so that the cover plate can finish the clamping operation of the power transmission line.
In order to realize the relative rotation between well apron and the side cover, set up as: the middle cover plate comprises a middle cover plate body and a middle cover plate rotating part, and a first contact surface is positioned on the middle cover body; the side cover plate comprises a side cover plate body and a side cover plate rotating part, and the second contact surface is positioned on the side cover plate body; the middle cover plate rotating part and the side cover plate rotating part can be assembled in a rotating mode.
The side cover plate rotating part comprises a rotating shaft extending in parallel to the extending direction of the upper wire groove, one end of the rotating shaft is fixedly connected with the side cover plate body, the other end of the rotating shaft is a free end, and the axis of the rotating shaft is positioned in a curved surface where the second contact surface is positioned; the middle cover plate rotates and comprises a rotating shaft hole, the rotating shaft hole is in transition fit with the rotating shaft, and the axis of the rotating shaft hole is located in the curved surface where the first contact surface is located.
In order to make the first contact surface and the second contact surface capable of enclosing to form the contact surface and not interfering and overlapping, the device is provided with: the first contact surface and the second contact surface are respectively arranged at two sides of the axis of the rotating shaft.
In the extending direction of the upper wire groove: the positioning coordinates of the side cover plate body and the middle cover plate body are the same, and the relative positioning coordinates of the rotating shaft and the rotating shaft hole are positioned on the same side. The technical characteristics define that the side cover plate body or the middle cover plate body, the rotating shaft and the rotating shaft hole are positioned on the same side. The rotating shaft hole and the rotating shaft are positioned at the same side, so that the assembly of the rotating shaft hole and the rotating shaft is convenient.
The middle cover plate rotating part further comprises a fixing plate, the rotating shaft hole is formed in the fixing plate, one side of the side cover plate, facing the fixing plate, is an end plane, a pressing bolt is arranged on the rotating shaft, and the fixing plate can be tightly attached to the end plane in a matched mode. This technical feature gives a concrete embodiment of the locking mechanism between the middle cover plate and the side cover plate. Under the cooperation of the compression bolts, the friction force generated by the close fit of the fixing plate and the end plane limits the relative rotation between the middle cover plate and the side cover plate.
In order to improve the friction force between the middle cover plate and the side cover plate, the fixing plate and the end plane are both covered with anti-skid rubber.
And a rotating shaft abdicating groove is formed in the middle cover plate body along the extending direction of the upper line groove. The groove of stepping down helps the well apron body to pass the assembly that the pivot hole realized with the pivot.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model has reasonable structure and safe and convenient use. The cover plate in the application also comprises a middle cover plate with a first contact surface and a side cover plate which is rotationally connected with the middle cover plate and is provided with a second contact surface, wherein the first contact surface and the second contact surface form the contact surfaces. Because the middle cover plate and the side cover plate can rotate mutually, the angle between the first contact surface and the second contact surface contained in the contact surface is adjustable, and the contact surface is adjustable.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic diagram of the position of the middle cover plate and the side cover plate of the present invention relative to the whole device;
FIG. 2 is a three-dimensional schematic view of the assembly of the middle cover plate and the side cover plate of the present invention;
fig. 3 is a three-dimensional schematic view of the middle cover plate of the present invention;
fig. 4 is a three-dimensional schematic view of the side cover plate of the present invention;
FIG. 5 is a two-dimensional front view of the assembly of the middle cover plate and the side cover plate of the present invention
In the figure: 1. a wire clamp body; 101. a wire discharging groove is formed; 2. a fastener; 3. a middle cover plate; 301. a first contact surface; 302. a middle cover plate body; 303. a rotating shaft hole; 304. a fixing plate; 4. a side cover plate; 401. a second contact surface; 402. a side cover plate body; 403. a rotating shaft; 404. an end plane; 405. and pressing the bolt.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Example 1:
as shown in fig. 1, 2 and 5, a parallel groove clamp with an adjustable contact surface comprises a clamp body 1 with a lower groove 101 and a cover plate with an upper groove, wherein the upper groove and the lower groove 101 enclose a clamping space for clamping a power transmission line, and the groove wall of the upper groove is a contact surface; the cover plate comprises a middle cover plate 3 with a first contact surface 301, and a side cover plate 4 which is rotatably connected with the middle cover plate 3 and has a second contact surface 401, the first contact surface 301 and the second contact surface 401 form the contact surfaces, and a rotating shaft 403 line between the middle cover plate 3 and the side cover plate 4 is parallel to the extending direction of the upper wire groove and is positioned in a curved surface where the groove wall of the upper wire groove is positioned.
As described above, the present application provides a contact surface adjustable parallel groove clamp. Similar with prior art, this scheme is including fastener body 1 that has lower wire casing 101, the apron that has the wire casing, and the wire casing and lower wire casing 101 enclose to close and form the centre gripping space that is used for centre gripping transmission line, the cell wall of wire casing is the contact surface. Further, the cover plate in the present application further includes a middle cover plate 3 having a first contact surface 301, and a side cover plate 4 rotatably connected to the middle cover plate 3 and having a second contact surface 401, wherein the first contact surface 301 and the second contact surface 401 constitute the contact surfaces. Because the middle cover plate 3 and the side cover plate 4 can rotate mutually, the angle between the first contact surface 301 and the second contact surface 401 included in the contact surface can be adjusted, and the contact surface can be adjusted. In the process of actually installing the wire clamp and the power transmission line, a worker can adjust the angle between the middle cover plate 3 and the side cover plate 4 according to the size of the power transmission line actually clamped, particularly the size of the shaft diameter of the power transmission line, and then the shape of the contact surface, namely the groove wall of the upper wire groove, is changed, so that the clamping and the fitting of the contact surface to the circumferential surface of the power transmission line are tighter. Since the upper line onion is generally arc-shaped, the first contact surface 301 and the second contact surface 401 are also generally arc-shaped, in order to avoid that the first contact surface 301 and the second contact surface 401 are dislocated with each other and cannot form a complete contact surface when the middle cover plate 3 and the side cover plate 4 rotate relatively, the arrangement is as follows: the rotating shaft 403 line between the middle cover plate 3 and the side cover plate 4 is parallel to the extending direction of the upper wire slot and is positioned in the curved surface of the slot wall of the upper wire slot.
Example 2:
as shown in fig. 1-5, the present embodiment is further defined on the basis of embodiment 1:
the quantity of well apron 3 is one, and the quantity of side cover plate 4 is two, two the extending direction branch of side cover plate 4 perpendicular to wire casing is located the both sides of well apron 3, be equipped with the relative upper and lower degree of freedom's of restriction two fastener 2 between well apron 3 and the fastener body 1, be provided with the locking mechanism of restriction two relative rotations between side cover plate 4 and the well apron 3. In this technical feature, the number of the middle cover plates 3 and the side cover plates 4 and the relative positional relationship between the cover plates are specifically defined. Since the parallel groove clamp is used to connect two power transmission lines, there are two clamping spaces for clamping the power transmission lines, and thus the number of the side cover plates 4 is also set to two. A fastener 2 for limiting the relative vertical freedom degree of the middle cover plate 3 and the wire clamp body 1 is arranged between the middle cover plate 3 and the wire clamp body, and a locking mechanism for limiting the relative rotation of the side cover plate 4 and the middle cover plate 3 is arranged between the side cover plate 4 and the middle cover plate. The fastener 2 fixes the middle cover plate 3, the middle cover plate 3 is used as a positioning parent body, and the side cover plate 4 and the middle cover plate 3 are fixed through the locking mechanism, so that the cover plate can finish the clamping operation of the power transmission line.
In order to realize the relative rotation between the middle cover plate 3 and the side cover plate 4, the following arrangement is adopted: the middle cover plate 3 comprises a middle cover plate body 302 and a middle cover plate 3 rotating part, and a first contact surface 301 is positioned on the middle cover body; the side cover plate 4 comprises a side cover plate body 402 and a side cover plate 4 rotating part, and the second contact surface 401 is positioned on the side cover plate body 402; the rotating part of the middle cover plate 3 and the rotating part of the side cover plate 4 can be assembled in a rotating way.
The rotating part of the side cover plate 4 comprises a rotating shaft 403 extending in parallel to the extending direction of the upper linear trough, one end of the rotating shaft 403 is fixedly connected with the side cover plate body 402, the other end of the rotating shaft 403 is a free end, and the axis of the rotating shaft 403 is positioned in the curved surface of the second contact surface 401; the middle cover plate 3 comprises a rotating shaft hole 303 in a rotating mode, the rotating shaft hole 303 is in transition fit with the rotating shaft 403, and the axis of the rotating shaft hole 303 is located in the curved surface of the first contact surface 301.
In order to enable the first contact surface 301 and the second contact surface 401 to form a contact surface in a surrounding manner without interference and superposition, the following arrangement is provided: the first contact surface 301 and the second contact surface 401 are located on two sides of the axis of the rotating shaft 403.
In the extending direction of the upper wire groove: the positioning coordinates of the side cover plate body 402 and the middle cover plate body 302 are the same, and the rotating shaft 403 and the rotating shaft hole 303 are located on the same side relative to the positioning coordinates. This feature defines that the opposite side cover plate body 402 or the middle cover plate body 302, the rotation shaft 403 and the rotation shaft hole 303 are located on the same side. The rotating shaft hole 303 and the rotating shaft 403 are positioned on the same side, so that the two shafts can be assembled conveniently.
The rotating part of the middle cover plate 3 further comprises a fixing plate 304, the fixing plate 304 is provided with the rotating shaft hole 303, one side of the side cover plate 4 facing the fixing plate 304 is an end plane 404, the rotating shaft 403 is provided with a pressing bolt 405, and the fixing plate 304 can be tightly attached to the end plane 404 under the matching of the pressing bolt 405. This technical feature gives a specific embodiment of the locking mechanism between the middle cover plate 3 and the side cover plate 4. Under the cooperation of the compression bolts 405, the friction force generated by the close fit of the fixing plate 304 and the end flat surface 404 limits the relative rotation between the middle cover plate 3 and the side cover plate 4.
In order to increase the friction between the middle cover plate 3 and the side cover plate 4, it is configured that the fixing plate 304 and the end flat surface 404 are covered with anti-slip rubber.
A rotating shaft 403 abdicating groove is formed in the middle cover plate body 302 along the extending direction of the upper line groove. The relief groove is helpful for the middle cover plate body 302 to penetrate through the rotating shaft 403 to realize the assembly of the rotating shaft hole 303 and the rotating shaft 403.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or deformation made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (9)
1. The parallel groove clamp with the adjustable contact surface is characterized by comprising a clamp body (1) with a lower groove (101) and a cover plate with an upper groove, wherein the upper groove and the lower groove (101) enclose to form a clamping space for clamping a power transmission line, and the groove wall of the upper groove is the contact surface;
the cover plate comprises a middle cover plate (3) with a first contact surface (301), and a side cover plate (4) which is rotatably connected with the middle cover plate (3) and has a second contact surface (401), wherein the first contact surface (301) and the second contact surface (401) form the contact surfaces, and a rotating shaft (403) line between the middle cover plate (3) and the side cover plate (4) is parallel to the extending direction of the upper wire groove and is positioned in a curved surface of the groove wall of the upper wire groove.
2. The parallel groove clamp with the adjustable contact surface as claimed in claim 1, wherein the number of the middle cover plate (3) is one, the number of the side cover plates (4) is two, the two side cover plates (4) are respectively arranged at two sides of the middle cover plate (3) and perpendicular to the extending direction of the upper wire groove, a fastener (2) for limiting the relative up-down freedom degree of the middle cover plate (3) and the clamp body (1) is arranged between the middle cover plate (3) and the middle cover plate (3), and a locking mechanism for limiting the relative rotation of the middle cover plate (4) and the middle cover plate (3) is arranged between the side cover plate (4) and the middle cover plate (3).
3. A contact surface adjustable parallel groove clamp as claimed in claim 2, wherein the middle cover plate (3) comprises a middle cover plate body (302), a middle cover plate (3) rotating part, the first contact surface (301) is positioned on the middle cover plate body; the side cover plate (4) comprises a side cover plate body (402) and a side cover plate (4) rotating part, and the second contact surface (401) is positioned on the side cover plate body (402); the rotating part of the middle cover plate (3) and the rotating part of the side cover plate (4) can be assembled in a rotating mode.
4. A parallel groove clamp with adjustable contact surfaces according to claim 3, wherein the rotating part of the side cover plate (4) comprises a rotating shaft (403) extending parallel to the extending direction of the upper linear groove, one end of the rotating shaft (403) is fixedly connected with the side cover plate body (402), the other end is a free end, and the axis of the rotating shaft (403) is positioned in the curved surface of the second contact surface (401); the middle cover plate (3) rotates and comprises a rotating shaft hole (303), the rotating shaft hole (303) is in transition fit with a rotating shaft (403), and the axis of the rotating shaft hole (303) is located in a curved surface where the first contact surface (301) is located.
5. A contact surface adjustable parallel groove clamp as claimed in claim 4, wherein the first contact surface (301) and the second contact surface (401) are located at both sides of the axis of the shaft (403).
6. A contact surface adjustable parallel groove clamp according to claim 4, characterized in that, in the extending direction of the upper wire groove: the positioning coordinates of the side cover plate body (402) and the middle cover plate body (302) are the same, and the rotating shaft (403) and the rotating shaft hole (303) are located on the same side relative to the positioning coordinates.
7. The parallel groove clamp with the adjustable contact surface as claimed in claim 6, wherein the rotating part of the middle cover plate (3) further comprises a fixing plate (304), the rotating shaft hole (303) is formed in the fixing plate (304), the side cover plate (4) facing the fixing plate (304) is an end plane (404), the rotating shaft (403) is provided with a compression bolt (405), and the fixing plate (304) can be tightly attached to the end plane (404) under the cooperation of the compression bolt (405).
8. A contact surface adjustable parallel groove clamp as claimed in claim 7, wherein the fixing plate (304) and the end flat surface (404) are covered with non-slip rubber.
9. A parallel groove clamp with adjustable contact surfaces according to claim 6, wherein the middle cover plate body (302) is provided with a shaft (403) abdicating groove along the extension direction of the wire feeding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121646748.0U CN215008595U (en) | 2021-07-20 | 2021-07-20 | Contact surface adjustable parallel groove clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121646748.0U CN215008595U (en) | 2021-07-20 | 2021-07-20 | Contact surface adjustable parallel groove clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215008595U true CN215008595U (en) | 2021-12-03 |
Family
ID=79123406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121646748.0U Expired - Fee Related CN215008595U (en) | 2021-07-20 | 2021-07-20 | Contact surface adjustable parallel groove clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215008595U (en) |
-
2021
- 2021-07-20 CN CN202121646748.0U patent/CN215008595U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |