CN219716734U - High-strength precise movable knife head - Google Patents
High-strength precise movable knife head Download PDFInfo
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- CN219716734U CN219716734U CN202321225438.0U CN202321225438U CN219716734U CN 219716734 U CN219716734 U CN 219716734U CN 202321225438 U CN202321225438 U CN 202321225438U CN 219716734 U CN219716734 U CN 219716734U
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- side wall
- along
- target structure
- elastic sleeve
- strength precision
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 238000010273 cold forging Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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Abstract
The utility model discloses a high-strength precise movable knife switch head, which comprises a conductive main body, a first connecting cavity and a second connecting cavity, wherein the first connecting cavity is used for connecting a first target structure; the elastic sleeve is of an elastic body structure, an annular second side wall is formed by the elastic sleeve, the second side wall and the first side wall are coaxially arranged, a gap is formed between the second side wall and the first side wall, the second side wall is used for penetrating a first target structure, and the second side wall is expanded and deformed in the radial direction after the first target structure penetrates so as to fill the gap; the first target structure is tightly connected with the conductive main body through the elastic sleeve; the utility model can solve the technical problem that the connection between the movable brake tool bit and the conductive piece is easy to loosen in the prior art.
Description
Technical Field
The utility model belongs to the technical field of conductive connecting pieces, and particularly relates to a high-strength precise movable knife head.
Background
In a power distribution system, a movable knife head is usually used in an air isolation switch of a ring main unit, and because the movable knife head usually needs to be moved, in the process of connecting two conductive pieces, the problem that an effective contact surface is reduced or the local resistance is high due to poor contact caused by loose connection between the movable knife head and the conductive pieces, and further abnormal temperature rise of a connecting part and even detachment of the connecting part and the working circuit are caused, so that the problem needs to be solved.
Disclosure of Invention
The embodiment of the utility model aims to provide a high-strength precise movable brake blade, which solves the technical problem that the movable brake blade and a conductive piece in the prior art are easy to loosen in connection.
In order to achieve the above purpose, the utility model adopts the following technical scheme: provided is a high-strength precision moving blade head, including:
the conductive body is provided with a first connecting cavity and a second connecting cavity, the first connecting cavity is used for connecting a first target structure, the second connecting cavity is used for connecting a second target structure, and the first connecting cavity forms an annular first side wall;
the elastic sleeve is of an elastic body structure, an annular second side wall is formed by the elastic sleeve, the second side wall and the first side wall are coaxially arranged, a gap is formed between the second side wall and the first side wall, the second side wall is used for penetrating a first target structure, and the second side wall is expanded and deformed in the radial direction after the first target structure penetrates so as to fill the gap;
the first target structure is tightly connected with the conductive main body through the elastic sleeve.
Optionally, fins are connected to two sides of the second side wall along the middle axis direction, the fins are obliquely arranged along the direction deviating from the middle axis of the second side wall, and a plurality of fins are sequentially and uniformly distributed along the circumferential direction of the second side wall;
two grooves which are recessed radially along the first side wall are formed in the first side wall, each groove is communicated end to end along the circumferential direction of the first side wall, a step surface is formed between each groove and the first side wall, and the fins are abutted to the step surface so as to prevent the second side wall from forming relative movement relative to the first side wall along the central axis direction of the second side wall.
Optionally, the inner side surface of the second side wall is provided with a plurality of ribs along the circumferential direction of the inner side surface, the ribs extend along the central axis line of the second side wall and are uniformly distributed at intervals in the circumferential direction of the second side wall, and the relative distance between two opposite ribs is smaller than the radial dimension of the second side wall;
the first target structure is abutted with the second side wall through the convex rib.
Optionally, a bar-shaped groove is arranged between two adjacent ribs, and the bar-shaped groove and the ribs extend in the same direction.
Alternatively, the second side wall is a flat structure, an annular structure is formed by bending, and the annular structure formed by bending has a space extending along the central axis direction of the second side wall.
Optionally, the cross-sectional shapes of the first side wall and the second side wall along the respective central axis direction are all circular structures.
Optionally, surfaces of the elastic sleeve and the connecting cavity are provided with silver plating layers.
Alternatively, the conductive body is a unitary structure formed by cold forging of pure copper.
Optionally, the second connection cavity is a threaded hole.
The high-strength precise movable knife head has the beneficial effects that: compared with the prior art, the high-strength precise movable knife blade provided by the utility model comprises a conductive main body and an elastic sleeve. The conductive body is provided with a first connecting cavity and a second connecting cavity, the first connecting cavity is used for connecting a first target structure, the second connecting cavity is used for connecting a second target structure, and the first connecting cavity forms an annular first side wall; the elastic sleeve is an elastic body structure to form an annular second side wall, the second side wall and the first side wall are coaxially arranged and form a gap with the first side wall, the second side wall is used for being penetrated by the first target structure, after the first target structure penetrates, the second side wall expands and deforms along the radial direction and fills the gap, and therefore the first target structure can be tightly connected with the first connecting cavity, and the technical problem of easy loosening is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a high-strength precision movable blade head according to an embodiment of the present utility model;
FIG. 2 is a front view of the overall structure of a high-strength precision movable blade head according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a cross-sectional view taken along the direction B-B in FIG. 3;
FIG. 5 is a schematic view of the overall structure of an elastic sleeve according to an embodiment of the present utility model;
fig. 6 is a partial enlarged view of fig. 3 at C.
Wherein, each reference sign in the figure:
100. a conductive body; 101. a first connection chamber; 102. a second connecting cavity; 103. a first sidewall; 104. a step surface; 200. an elastic sleeve; 201. a second sidewall; 202. a gap; 203. a fin; 204. a rib; 205. a bar-shaped groove; 206. spacing.
Description of the embodiments
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 6 together, a high-strength precision moving blade head according to an embodiment of the present utility model is described, and the high-strength precision moving blade head includes a conductive main body 100 and an elastic sleeve 200, wherein the conductive main body 100 has a first connecting cavity 101 and a second connecting cavity 102, the first connecting cavity 101 is used for connecting a first target structure, the second connecting cavity 102 is used for connecting a second target structure, and the first connecting cavity 101 forms a ring-shaped first sidewall 103; the elastic sleeve 200 is an elastomer structure, the elastic sleeve 200 forms an annular second side wall 201, the second side wall 201 and the first side wall 103 are coaxially arranged, a gap 202 is formed between the second side wall 201 and the first side wall 103, the second side wall 201 is used for penetrating the first target structure, and the second side wall 201 expands and deforms in the radial direction after the first target structure penetrates so as to fill the gap 202. The first and second conductive structures described in this embodiment may be conductive members used in an electrical distribution system.
According to this structure, when the high-strength precision moving blade provided in the present embodiment is used for connecting the conductive member, the conductive member can penetrate into the second sidewall 201 and radially expand and deform the second sidewall 201, thereby filling the gap 202 between the first sidewall 103 and the second sidewall 201. Therefore, the conductive piece and the first connecting cavity 101 form interference fit and tight connection through the elastic sleeve 200, so that the connection stability between the conductive piece and the conductive main body 100 is greatly improved, the conductive piece and the conductive main body 100 are prevented from being separated, and the stability of circuit connection is ensured.
Referring to fig. 1 to 5, two sides of the second side wall along the central axis direction are connected with fins 203, the fins 203 are obliquely arranged along the direction deviating from the central axis of the second side wall 201, and a plurality of fins 203 are uniformly distributed in sequence along the circumferential direction of the second side wall 201; two grooves recessed radially along the first side wall 103 are formed in the first side wall 103, each groove is communicated end to end along the circumferential direction of the first side wall 103, a step surface 104 is formed between each groove and the first side wall 103, and the fins 203 are abutted to the step surface 104 so as to prevent the second side wall 201 from forming relative movement relative to the first side wall 103 along the central axis direction of the second side wall 201.
According to this structure, the high-strength precision moving blade provided in the present embodiment forms a relatively determined positional relationship between the second side wall 201 and the first side wall 103 by the fins 203, preventing the second side wall 201 from moving within the first connecting chamber 101 or coming out of the first connecting chamber 101. The circumferentially arranged fins 203 and the correspondingly arranged grooves ensure that no relative movement between the second side wall 201 and the first side wall 103 occurs as much as possible. In addition, in this embodiment, the fins 203 are disposed along a direction deviating from the central axis of the second side wall 201, when the elastic sleeve 200 is installed in the first connecting cavity 101, the plurality of fins 203 may be deformed along a direction close to the central axis of the second side wall 201, and when the fins 203 enter the groove, the original inclined state of the fins 203 is restored, so that the installation of the fins 203 is greatly facilitated.
Referring to fig. 1 to 5, the inner side surface of the second sidewall 201 is provided with a plurality of ribs 204 along the circumferential direction thereof, the ribs 204 extend along the central axis line of the second sidewall 201 and are uniformly spaced 206 in the circumferential direction of the second sidewall 201, and the relative distance between two opposite ribs 204 is smaller than the radial dimension of the second sidewall 201; the first target structure is brought into abutment with the second sidewall 201 by the rib 204.
By providing the rib 204 structure in this embodiment, the tightness of the connection between the first target structure and the elastic sleeve 200 can be further improved. It will be appreciated that since the relative spacing between the oppositely disposed ribs 204 is less than the radial dimension of the second sidewall 201, the first target structure is in substantial direct contact with the rib 204 structure as it enters into the annular second sidewall 201, thereby improving the tightness of the connection therebetween. Furthermore, by providing the rib 204 structure, the raised height of the rib 204 can be flexibly set, so that the elastic sleeve 200 can be more conveniently adapted to the gap 202 formed between the second side wall 201 and the first side wall 103, and the first target structure can be more easily connected with the elastic sleeve 200.
Referring to fig. 1 to 5, a bar-shaped groove 205 is disposed between two adjacent ribs 204, and the bar-shaped groove 205 and the ribs 204 extend along the same direction.
The meaning of providing the bar-shaped groove 205 in this embodiment is that, on one hand, since the conductive body 100 and the conductive member generate heat during use, the provision of the bar-shaped groove 205 can increase the heat dissipation effect between the conductive body 100 and the conductive member, and avoid the influence on the conductive effect due to the increase of resistance caused by overheating between the conductive body and the conductive member. On the other hand, the provision of the strip-shaped groove 205 may further facilitate the elastic deformation of the elastic sleeve 200. In yet another aspect, providing the slot 205 may also reduce the raw materials required to make the elastomeric sleeve 200, with the technical effect of saving raw materials.
Referring to fig. 1 to 5, the second sidewall 201 is a flat structure and is formed into a ring structure by bending, and the ring structure formed by bending has a space 206 extending along the central axis direction of the second sidewall 201. With the structure of the elastic cover 200 having the space 206 provided in the present embodiment, elastic deformation of the elastic cover 200 is easier. On the other hand, the second side wall 201 formed in a ring shape by curling a flat structure also has a technical effect in terms of simplicity of processing.
Referring to fig. 1 to 5, the cross-sectional shapes of the first sidewall 103 and the second sidewall 201 along the central axis direction are circular structures. It will be appreciated that in all of the foregoing embodiments, the cross-sectional shapes of the first sidewall 103 and the second sidewall 201 along their central axes are not limited, and may be circular, square, oval or other polygonal structures commonly used in the art, and may be adaptive shapes prepared according to the shape of the conductive member. The first side wall 103 and the second side wall 201 are arranged to be circular in cross-section along the central axis thereof in the present embodiment, on the one hand, in order to reduce the processing difficulty, on the other hand, the elastic sleeve 200 can be more conveniently installed in the first connecting cavity 101, and the second side wall 201 can be better abutted with the first side wall 103 after the first object is installed in the second side wall 201.
Referring to fig. 1 to 5, the surfaces of the elastic sleeve 200 and the connecting cavity are provided with silver plating layers, which can greatly improve the conductivity of the conductive main body 100 provided in the embodiment, reduce the contact resistance and reduce the temperature rise; further, the conductive body 100 in this embodiment is an integral structure formed by cold forging of pure copper, and the conductive body 100 has better structural strength by cold hardening.
Referring to fig. 1 to 5, the second connecting cavity 102 is a threaded hole. Since a high-strength precision moving blade head is provided in the present embodiment. Therefore, the conductive body 100 can be more stably connected with the driving conductive member by the threaded hole structure formed by the second connecting cavity 102, and has a good connection relationship with the driving conductive member during the movement of the conductive body 100.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. A high strength precision moving blade head, comprising:
a conductive body (100) having a first connection cavity (101) and a second connection cavity (102), the first connection cavity (101) being for connecting a first target structure, the second connection cavity (102) being for connecting a second target structure, the first connection cavity (101) forming a first side wall (103) in the shape of a ring;
an elastic sleeve (200) which is an elastomer structure, wherein the elastic sleeve (200) forms an annular second side wall (201), the second side wall (201) and the first side wall (103) are coaxially arranged, a gap (202) is formed between the second side wall (201) and the first side wall (103), and the second side wall (201) is used for penetrating a first target structure and expands and deforms in the radial direction after the first target structure penetrates so as to fill the gap (202);
the first target structure forms a tight connection with the conductive body (100) through the elastic sleeve (200).
2. The high-strength precision brake blade according to claim 1, wherein:
the two sides of the second side wall along the middle axis direction are connected with fins (203), the fins (203) are obliquely arranged along the direction deviating from the middle axis of the second side wall (201), and a plurality of fins (203) are sequentially and uniformly distributed along the circumferential direction of the second side wall (201);
two grooves which are recessed radially along the first side wall (103) are formed in the first side wall (103), each groove is communicated end to end along the circumferential direction of the first side wall (103), a step surface (104) is formed between each groove and the first side wall (103), and the fins (203) are abutted to the step surfaces (104) so as to prevent the second side wall (201) from forming relative movement relative to the first side wall (103) along the central axis direction of the second side wall.
3. The high-strength precision brake blade according to claim 2, wherein:
the inner side surface of the second side wall (201) is provided with a plurality of ribs (204) along the circumferential direction of the inner side surface, the ribs (204) extend along the central axis line of the second side wall (201) and are uniformly distributed at intervals (206) in the circumferential direction of the second side wall (201), and the relative distance between two opposite ribs (204) is smaller than the radial dimension of the second side wall (201);
the first target structure is abutted with the second side wall (201) through the convex rib (204).
4. A high strength precision brake blade according to claim 3, wherein:
a strip-shaped groove (205) is arranged between two adjacent ribs (204), and the strip-shaped groove (205) and the ribs (204) extend along the same direction.
5. The high strength precision brake blade as claimed in any one of claims 1-4, wherein:
the second side wall (201) is flat and is formed into an annular structure by bending, and the annular structure formed by bending has a space (206) extending along the central axis direction of the second side wall (201).
6. The high-strength precision brake blade according to claim 5, wherein:
the cross-sectional shapes of the first side wall (103) and the second side wall (201) along the respective central axis directions are all circular structures.
7. The high-strength precision brake blade according to claim 1, wherein:
the surfaces of the elastic sleeve (200) and the connecting cavity are provided with silver plating layers.
8. The high-strength precision brake blade according to claim 1, wherein:
the conductive body (100) is a unitary structure formed by cold forging of pure copper.
9. The high-strength precision brake blade according to claim 1, wherein:
the second connecting cavity (102) is a threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321225438.0U CN219716734U (en) | 2023-05-20 | 2023-05-20 | High-strength precise movable knife head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321225438.0U CN219716734U (en) | 2023-05-20 | 2023-05-20 | High-strength precise movable knife head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219716734U true CN219716734U (en) | 2023-09-19 |
Family
ID=88004042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321225438.0U Active CN219716734U (en) | 2023-05-20 | 2023-05-20 | High-strength precise movable knife head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219716734U (en) |
-
2023
- 2023-05-20 CN CN202321225438.0U patent/CN219716734U/en active Active
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