CN220769880U - Bolt assembly and electrical equipment - Google Patents
Bolt assembly and electrical equipment Download PDFInfo
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- CN220769880U CN220769880U CN202321882064.XU CN202321882064U CN220769880U CN 220769880 U CN220769880 U CN 220769880U CN 202321882064 U CN202321882064 U CN 202321882064U CN 220769880 U CN220769880 U CN 220769880U
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- deformation sleeve
- bolt assembly
- sleeve
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- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 12
- 238000004880 explosion Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- 235000009566 rice Nutrition 0.000 description 1
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Abstract
The utility model discloses a bolt assembly and an electrical device, wherein the bolt assembly comprises: a bolt body and a deformation sleeve; the bolt body comprises a bolt head and a screw rod connected to the bolt head; the deformation sleeve is provided with a plug cavity and at least one deformation through groove communicated with the plug cavity, one end of the plug cavity is a plug port, the screw rod penetrates through the plug cavity from the plug port, and the deformation through groove extends along the length direction of the deformation sleeve and penetrates through the plug port. The technical scheme of the utility model can increase the explosion-proof effect of the electrical equipment with the bolt assembly.
Description
Technical Field
The utility model relates to the technical field of fixing bolts, in particular to a bolt assembly and electrical equipment.
Background
The structure inside electrical equipment is complicated, the inside electric capacity of electrical equipment, structures such as switch or relay can produce the trouble, thereby lead to electrical equipment explosion, but because electrical equipment itself has better leakproofness, when exploding, the inside pressure of electrical equipment can sharply increase, when pressure exceeds certain size, can lead to electrical equipment's shell structure to break up easily and explode, can probably damage or damage peripheral other electrical equipment to the people, at present mostly increase the intensity of casing through modes such as increase thickness, change material, or increase the connection strength through modes such as increase screw quantity or reinforcing screw intensity, promote electrical equipment's explosion-proof effect, but these modes are less to explosion-proof effect's promotion.
Disclosure of Invention
The main object of the present utility model is to provide a bolt assembly aimed at increasing the explosion-proof effect of an electrical apparatus having the bolt assembly.
In order to achieve the above object, the present utility model provides a bolt assembly comprising:
the bolt body comprises a bolt head and a screw rod connected to the bolt head; and
the deformation sleeve is provided with a plug cavity and at least one deformation through groove communicated with the plug cavity, one end of the plug cavity is a plug port, the screw rod penetrates through the plug cavity from the plug port, and the deformation through groove extends along the length direction of the deformation sleeve and penetrates through the plug port.
Optionally, the deformation through groove is provided with a plurality of, and a plurality of deformation through grooves are in turn the interval distribution in deformation sleeve's periphery wall.
Optionally, the bolt head portion may be configured to abut against a wall body of the socket, at least one of an end of the bolt head portion facing the socket and an end of the deformation sleeve facing the bolt head portion being provided with a guide slope that is inclined inwardly in a direction approaching a tail portion of the screw.
Optionally, the bolt head and the deformation sleeve are respectively provided with a first guide inclined plane and a second guide inclined plane at the joint, the first guide inclined plane is a round table surface, and a plurality of second guide inclined planes are distributed along the circumferential direction.
Optionally, an included angle formed by any two opposite second guiding inclined planes is alpha, a cone angle of the round table top is beta, and alpha is greater than or equal to beta.
Optionally, the plurality of deformation through grooves are uniformly distributed on the peripheral wall of the deformation sleeve at intervals.
Optionally, the number of the deformation through grooves is greater than or equal to four.
Optionally, the width of the deformation through groove gradually decreases in the direction of the plug interface towards the bottom wall of the plug cavity.
Optionally, the screw rod includes screw thread section and polished rod section, the screw thread section is located polished rod section is kept away from the one end of bolt head, polished rod section holding is in the deformation sleeve.
Optionally, the diameter of the screw is less than or equal to the inner diameter of the deformation sleeve, which is less than the width of the screw head.
The utility model also provides electrical equipment, which comprises a first shell, a second shell and the bolt assembly, wherein the first shell is provided with a through hole, the second shell is provided with a threaded hole, one end of the deformation sleeve is abutted against the first shell, and the bolt body sequentially penetrates through the insertion port and the through hole and then is in threaded connection with the threaded hole.
According to the technical scheme, the bolt assembly is applied to the electrical equipment, the electrical equipment comprises two shells, the two shells are connected through the bolt assembly, the lower end of the deformation sleeve is abutted to one of the shells, the bolt body sequentially penetrates through the deformation sleeve and the shell and is screwed to the other shell, when the electrical equipment explodes, the internal pressure of the electrical equipment is increased, the two shells are pushed to be separated from each other by the pressure generated by the explosion, one of the shells pushes the deformation sleeve to move towards the bolt head under the action of the pressure, when the pressure is gradually increased, the deformation sleeve is pushed to the bolt head, the bolt head presses the deformation sleeve at the moment, so that the peripheral wall of the deformation sleeve can be opened towards the periphery of the bolt head, the lower part of the deformation sleeve can continuously move along the axis of the screw, the two shells are always connected by the bolt body, but because the deformation sleeve is extruded, a gap exists between the two shells, and the gap is used for releasing the pressure from the inside. The setting like this, when electrical equipment produces the explosion, guarantee that inside pressure can in time discharge, avoided the too big casing that leads to of pressure explodes and hurts the condition of people or other equipment, promoted the explosion-proof effect of electrical equipment that has this bolt assembly.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a bolt assembly according to the present utility model;
FIG. 2 is a schematic view of the structure of the bolt body of FIG. 1;
FIG. 3 is a schematic view of the deformation sleeve of FIG. 1;
FIG. 4 is another schematic view of the deformation sleeve of FIG. 1;
FIG. 5 is a schematic view of a bolt assembly according to an embodiment of the present utility model, in which no compression is generated between the bolt body and the deformation sleeve;
FIG. 6 is a schematic view of a bolt assembly according to an embodiment of the present utility model after the bolt body is pressed against the deformation sleeve;
FIG. 7 is a schematic view of an embodiment of an electrical apparatus according to the present utility model;
fig. 8 is a schematic diagram of an electrical apparatus according to an embodiment of the present utility model after explosion.
Reference numerals illustrate:
reference numerals | Name of the name | Reference numerals | Name of the name |
10 | Bolt assembly | 11 | Bolt head |
111 | First guiding inclined plane | 12 | Screw rod |
121 | Polish rod section | 122 | Thread segment |
20 | Deformation sleeve | 21 | Plug-in connector |
22 | Deformation through groove | 23 | Second guiding inclined plane |
30 | First shell body | 31 | Second shell |
32 | Gap of |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The utility model provides a bolt assembly for electrical equipment.
In one embodiment of the present utility model, as shown in fig. 1 to 6, the bolt assembly 10 includes a bolt body and a deformation sleeve 20; the bolt body comprises a bolt head 11 and a screw 12 connected to the bolt head 11; the deformation sleeve 20 is provided with a plug cavity and at least one deformation through groove 22 communicated with the plug cavity, one end of the plug cavity is a plug port 21, the screw 12 penetrates the plug cavity from the plug port 21, and the deformation through groove 22 extends along the length direction of the deformation sleeve 20 and penetrates the plug port 21. Wherein the plurality of fingers is more than two.
In the technical scheme of the utility model, the bolt assembly 10 is applied to an electrical device, the electrical device comprises two shells, the two shells are connected through the bolt assembly 10, the lower end of the deformation sleeve 20 is abutted against one of the shells, the bolt body sequentially penetrates through the deformation sleeve 20 and the shell and is screwed on the other shell, when the electrical device explodes, the internal pressure of the electrical device is increased, the two shells are pushed to be separated from each other by the pressure generated by the explosion, one of the shells pushes the deformation sleeve 20 to move towards the bolt head 11 under the action of the pressure, when the pressure is gradually increased, the deformation sleeve 20 is pushed to the bolt head 11, at the moment, the bolt head 11 presses the deformation sleeve 20, so that the peripheral wall of the deformation sleeve 20 can be opened towards the periphery of the bolt head 11, the lower part of the deformation sleeve 20 can continuously move along the axis of the screw 12, and the two shells are always connected by the bolt body, but a gap 32 exists between the two shells due to the extrusion of the deformation sleeve 20, and the gap 32 is used for releasing the pressure from the inside. The setting like this, when electrical equipment produces the explosion, guarantee that inside pressure can in time discharge, avoided the too big casing that leads to of pressure explodes and hurts the condition of people or other equipment, promoted the explosion-proof effect of electrical equipment that has this bolt assembly 10.
In an embodiment, a plurality of deformation through grooves 22 are provided, and the plurality of deformation through grooves 22 are sequentially and intermittently distributed on the outer peripheral wall of the deformation sleeve 20.
Specifically, the peripheral wall of the deformation sleeve 20 is divided into a plurality of parts by the deformation through grooves 22, the deformation through grooves 22 are distributed at intervals, and when the deformation sleeve 20 is pressed by the bolt head 11, the peripheral wall of the deformation sleeve 20 can be divided into a plurality of parts to be opened outwards, so that the deformation sleeve 20 can be deformed better, and the use effect of the bolt assembly 10 is ensured.
In an embodiment, the bolt head 11 can be adapted to abut against a wall of the socket 21, at which abutment the end of the bolt head 11 facing the socket 21 and the end of the deformation sleeve 20 facing the bolt head 11 are provided with a guiding ramp, which is inclined inwards in a direction approaching the tail of the screw 12.
Specifically, in this embodiment, the one end that bolt head 11 is close to screw rod 12 and deformation sleeve 20 upper end all are equipped with the direction inclined plane, and the butt of mutually supporting of direction inclined plane of both can make deformation sleeve 20 when moving towards bolt head 11, bolt head 11 can adapt interface 21 and insert the grafting chamber, and will warp the outer expansion deformation of the perisporium of sleeve 20, and the direction inclined plane all inclines towards the grafting intracavity portion, sets up like this, the butt of bolt head 11 and deformation sleeve 20 of being convenient for, and can guarantee the cooperation of bolt head 11 and deformation sleeve 20 and use, promotes the use experience. In other embodiments, a guiding inclined plane is provided at one end of the bolt head 11 near the screw 12, the guiding inclined plane of the bolt head 11 is used for abutting against the wall body of the insertion port 21, and when the bolt head 11 is inserted into the deformation sleeve 20, the peripheral wall of the deformation sleeve 20 can be outwards expanded and deformed.
In an embodiment, the bolt head 11 and the deformation sleeve 20 are respectively provided with a first guiding inclined plane 111 and a second guiding inclined plane 23 at the abutting position, the first guiding inclined plane 111 is a round table surface, and a plurality of second guiding inclined planes 23 are distributed along the circumferential direction.
Specifically, a round table surface is formed at the lower end of the bolt head 11, the peripheral wall of the deformation sleeve 20 is divided into a plurality of parts by a plurality of deformation through grooves 22, a second guide inclined surface 23 is arranged at the upper end of each part, the round table surface is used for being matched and abutted with the plurality of second guide inclined surfaces 23, namely, when the deformation sleeve 20 moves upwards, the round table surface is abutted with the plurality of second guide inclined surfaces 23, so that the plurality of parts of the peripheral wall of the deformation sleeve 20 are simultaneously outwards expanded, the deformation consistency of the deformation sleeve 20 is ensured, only the parts of the deformation sleeve 20 cannot deform, the axis of the deformation sleeve 20 may not be collinear with the axis of the screw 12, the friction force between the screw 12 and the deformation sleeve 20 is increased, the deformation sleeve 20 is difficult to move relative to the screw 12, and the use effect is affected. By this arrangement, the use effect of the bolt assembly 10 can be ensured, and failure can be prevented.
In one embodiment, as shown in fig. 1 and 4, any two opposing second guiding inclined surfaces 23 form an included angle α and a cone angle β of the circular table surface, where α is greater than or equal to β.
Specifically, the taper angle β of the circular table surface is smaller than or equal to the included angle α formed by the two opposite second guiding inclined planes 23, so that the circular table surface can enter the insertion cavity more quickly to contact with the peripheral wall of the deformation sleeve 20, so that the deformation sleeve 20 can be deformed more smoothly, and the use effect of the bolt assembly 10 can be improved. In other embodiments, the angle between the second guide ramp 23 and the axis of the deformation sleeve 20 is less than or equal to half the cone angle of the circular table.
In one embodiment, the plurality of deformation channels 22 are uniformly spaced apart on the outer peripheral wall of the deformation sleeve 20.
Specifically, the peripheral wall of the deformation sleeve 20 is divided into a plurality of parts by a plurality of deformation through grooves 22, and the deformation through grooves 22 are uniformly distributed at intervals, so that the width of each part of the deformation sleeve 20 which is divided is the same, and in the process that the deformation sleeve 20 is extruded by the bolt head 11, the stress of each position of the bolt head 11 is the same, so that the use effect of the bolt assembly 10 can be ensured, and the service life of the bolt body can be prolonged.
In one embodiment, the number of deformed through slots 22 is greater than or equal to four.
Specifically, the deformation through groove 22 is: the fewer the number of the deformation through grooves 22 is, the higher the strength of the deformation sleeve 20 is, the harder the bolt body is to say that the deformation sleeve 20 is extruded outwards to expand, the number of the deformation through grooves 22 is set according to actual application scenes, the number of the deformation through grooves 22 is six in the embodiment, the moderate strength of the deformation through grooves 22 can be ensured through the setting, and the even number of the deformation through grooves 22 are more convenient to process. In other embodiments, the number of deformed through slots 22 is less than or equal to three.
In one embodiment, the width of the deformation channel 22 decreases gradually in the direction of the plug opening 21 towards the bottom wall of the plug cavity.
Specifically, when the pressure in the electrical device is continuously increased, a corresponding resistance is required to be provided to resist the pressure, so that the width of the deformation through groove 22 is gradually reduced from top to bottom, and the deformation through groove 22 is arranged at a position with a large width so as to be convenient for abutting against the bolt head 11, so that the bolt head 11 can be more quickly contacted with the inner wall of the deformation sleeve 20 to press and deform the bolt head, at the moment, the gap 32 between the two shells can be quickly opened to discharge the pressure, the pressure is gradually increased, the deformation sleeve 20 gradually moves towards the side far away from the shells, the width of the lower end of the deformation through groove 22 is reduced, the strength of the lower end of the deformation sleeve 20 is higher, the pressure increasing speed can be prevented from being too fast, the two shells are separated and exploded, and the explosion-proof effect of the electrical device with the bolt assembly 10 is further improved. In other embodiments, the width of the deformation channel 22 remains uniform in the direction of the plug opening 21 towards the bottom wall of the plug cavity.
In one embodiment, the screw 12 includes a threaded section 122 and a polished rod section 121, the threaded section 122 being located at an end of the polished rod section 121 remote from the bolt head 11, the polished rod section 121 being received within the deformation sleeve 20.
Specifically, the polish rod section 121 of the screw rod 12 is in sliding fit with the plug cavity, the thread section 122 of the screw rod 12 is in threaded connection with an external structure, the friction force between the polish rod section 121 and the deformation sleeve 20 is small, the thread section 122 is always located outside the deformation sleeve 20, and therefore smoothness of relative movement between the deformation sleeve 20 and the screw rod 12 can be guaranteed.
In one embodiment, the diameter of the threaded rod 12 is less than or equal to the inner diameter of the deformation sleeve 20, the inner diameter of the deformation sleeve 20 being less than the width of the bolt head 11.
Specifically, when the lower end of the deformation sleeve 20 moves to be abutted against the bolt head 11, the deformation sleeve 20 is clamped at the lower end of the bolt head 11, so that the deformation sleeve 20 can be prevented from being separated from the bolt head 11 in the moving process, the connection and the matching of the deformation sleeve 20 and the screw 12 are ensured, in the embodiment, the diameter of the screw 12 is equal to the inner diameter of the deformation sleeve 20, and the assembly stability of the deformation sleeve and the screw is further improved.
In one embodiment, the upper end of the bolt head 11 is provided with a mating groove, which is: cross grooves, addition and subtraction grooves, straight grooves, rice grooves, square grooves, inner hexagonal grooves, triangular grooves or inner hexagonal flower grooves.
The present utility model also proposes an electrical device, as shown in fig. 5 to 8, which includes a first housing 30, a second housing 31 and a bolt assembly 10, where the specific structure of the bolt assembly 10 refers to the above embodiment, and since the electrical device adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein. Wherein, the first casing 30 is provided with a via hole, the second casing 31 is provided with a threaded hole, one end of the deformation sleeve 20 is abutted to the first casing 30, and the bolt body sequentially passes through the insertion port 21 and the via hole and then is in threaded connection with the threaded hole.
Further, the via hole is a countersunk hole, and the lower end of the deformation sleeve 20 abuts against the step edge of the countersunk hole.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (11)
1. A bolt assembly, comprising:
the bolt body comprises a bolt head and a screw rod connected to the bolt head; and
the deformation sleeve is provided with a plug cavity and at least one deformation through groove communicated with the plug cavity, one end of the plug cavity is a plug port, the screw rod penetrates through the plug cavity from the plug port, and the deformation through groove extends along the length direction of the deformation sleeve and penetrates through the plug port.
2. The bolt assembly of claim 1, wherein a plurality of deformation through grooves are provided, and the plurality of deformation through grooves are sequentially distributed on the outer peripheral wall of the deformation sleeve at intervals.
3. A bolt assembly according to claim 2, wherein the bolt head is adapted to abut the wall of the socket, at least one of the end of the bolt head facing the socket and the end of the deformation sleeve facing the bolt head being provided with a guiding ramp which is inclined inwardly in a direction approaching the tail of the screw.
4. A bolt assembly according to claim 3, wherein the bolt head and the deformation sleeve are provided with a first guide inclined surface and a second guide inclined surface at the abutting position respectively, the first guide inclined surface is a circular table surface, and a plurality of second guide inclined surfaces are distributed along the circumferential direction.
5. The bolt assembly of claim 4 wherein any two opposing second guide ramps form an included angle α, the cone angle of the rounded mesa being β, the α being greater than or equal to the β.
6. The bolt assembly of claim 2 wherein a plurality of said deformation channels are evenly spaced about the peripheral wall of said deformation sleeve.
7. The bolt assembly of claim 6, wherein the number of deformed through slots is greater than or equal to four.
8. The bolt assembly of claim 1, wherein the deformed channel tapers in width in a direction of the socket toward the socket bottom wall.
9. The bolt assembly of claim 1, wherein the threaded shank includes a threaded section and a polished rod section, the threaded section being located at an end of the polished rod section remote from the bolt head, the polished rod section being received within the deformation sleeve.
10. The bolt assembly of claim 1, wherein the diameter of the bolt is less than or equal to an inner diameter of the deformation sleeve, the inner diameter of the deformation sleeve being less than a width of the bolt head.
11. An electrical device, comprising a first housing, a second housing and the bolt assembly according to claims 1 to 10, wherein the first housing is provided with a through hole, the second housing is provided with a threaded hole, one end of the deformation sleeve is abutted to the first housing, and the bolt body sequentially passes through the insertion port and the through hole and then is in threaded connection with the threaded hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202321882064.XU CN220769880U (en) | 2023-07-17 | 2023-07-17 | Bolt assembly and electrical equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202321882064.XU CN220769880U (en) | 2023-07-17 | 2023-07-17 | Bolt assembly and electrical equipment |
Publications (1)
Publication Number | Publication Date |
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CN220769880U true CN220769880U (en) | 2024-04-12 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202321882064.XU Active CN220769880U (en) | 2023-07-17 | 2023-07-17 | Bolt assembly and electrical equipment |
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CN (1) | CN220769880U (en) |
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2023
- 2023-07-17 CN CN202321882064.XU patent/CN220769880U/en active Active
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