CN218347745U - Anti-loosening bolt structure - Google Patents
Anti-loosening bolt structure Download PDFInfo
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- CN218347745U CN218347745U CN202221901226.5U CN202221901226U CN218347745U CN 218347745 U CN218347745 U CN 218347745U CN 202221901226 U CN202221901226 U CN 202221901226U CN 218347745 U CN218347745 U CN 218347745U
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Abstract
The application provides a check bolt structure, this check bolt structure includes: the first bolt, the bolt flange, the first gasket and the fixing column; the bolt flange is sleeved on the first bolt, and a plurality of grooves sunken towards the axis of the first bolt are formed in the periphery of the bolt flange; the first gasket is provided with a first through hole, and the size of the first through hole is matched with that of the first bolt; a plurality of second through holes are arranged around the first through holes in a surrounding mode, and the size of each second through hole is matched with that of the corresponding groove; the size of the fixing column is matched with the size of the second through hole and the size of the groove, so that when the first bolt penetrates through the first through hole to be screwed tightly, the bolt flange is close to the first gasket, and at least one groove is aligned with any one second through hole along the axial direction of the first bolt, the fixing column can be embedded into the aligned groove and the second through hole. The application provides a check bolt structure can reach the not hard up purpose of preventing first bolt.
Description
Technical Field
The application relates to the technical field of bolts, in particular to a check bolt structure.
Background
The existing bolt consists of a screw and a nut and is an important fastening part. However, with the use of the bolt, the conventional bolt can be loosened and even fall off on a moving object due to vibration, which causes serious accidents and unnecessary loss.
SUMMERY OF THE UTILITY MODEL
The application provides a check bolt structure for solve among the prior art bolt can produce not hard up because of the vibration on the object of motion, the problem that drops even.
The application provides a check bolt structure includes: the first bolt, the bolt flange, the first gasket and the fixing column;
the bolt flange is sleeved on the first bolt, and a plurality of grooves sunken towards the axis of the first bolt are formed in the periphery of the bolt flange;
the first gasket is provided with a first through hole, and the size of the first through hole is matched with that of the first bolt;
a plurality of second through holes are arranged around the first through holes in a surrounding mode, and the size of each second through hole is matched with that of the corresponding groove;
the size of the fixing column is matched with the size of the second through hole and the size of the groove, so that when the first bolt penetrates through the first through hole to be screwed, the bolt flange is close to the first gasket, and at least one groove is aligned with any one second through hole along the axial direction of the first bolt, the fixing column can be embedded into the aligned groove and the aligned second through hole.
In one embodiment, further comprising: a second bolt;
and a third through hole is formed in the first gasket, and the size of the third through hole is matched with that of the second bolt.
In one embodiment, further comprising: a second gasket;
and a fourth through hole is formed in the second gasket, and the size and the position of the fourth through hole are matched with those of the first through hole.
In one embodiment, the second gasket is provided with a fifth through hole, and the size and the position of the fifth through hole are matched with those of the third through hole.
In one embodiment, the grooves are evenly distributed around the periphery of the bolt flange.
In one embodiment, the second through holes are evenly distributed around the first through holes.
In one embodiment, the number of grooves is smaller than the number of second through holes.
In one embodiment, the size of one end of the fixing post is larger than that of the other end, when the fixing post is embedded in the groove and the second through hole which are aligned, the end with the larger size of the fixing post can be embedded in the second through hole which is aligned with the groove, and the end with the smaller size of the fixing post can be embedded in the groove which is aligned with the second through hole.
In one embodiment, the third through holes are disposed at opposite ends of the first gasket.
In one embodiment, the third through holes are disposed at opposite two pairs of corners of the first gasket.
One or more technical solutions in the embodiments of the present application have at least one of the following technical effects:
the utility model provides a check bolt structure, the bolt flange cover is established on first bolt, and the periphery of bolt flange is provided with a plurality of sunken recesses in first bolt axle center, be provided with first through-hole on the first gasket, the size of first through-hole and the size phase-match of first bolt, encircle around setting up a plurality of second through-holes around the first through-hole, the size of second through-hole and the size phase-match of recess, the size of stationary column and the size phase-match of second through-hole and recess, make and screw when first bolt passes first through-hole, the bolt flange is pressed close to with first gasket, and when having at least one recess and the axial alignment of arbitrary second through-hole along first bolt, the stationary column can imbed the recess and the second through-hole of alignment. Due to the embedding of the fixing column, the bolt flange fixedly connected with the first bolt is limited by the fixing column and cannot move, so that the first bolt can be fixed, and the purpose of preventing the first bolt from loosening is achieved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions in the present application or prior art, the drawings used in the embodiments or the description of the prior art are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a check bolt structure provided in an embodiment of the present application;
fig. 2 is a sectional view of a check bolt structure provided in an embodiment of the present application;
fig. 3 is a top view of a check bolt structure provided in an embodiment of the present application.
Reference numerals:
1-a first bolt; 2-bolt flange; 21-a groove; 3-a first gasket; 31-a first via; 32-a second via; 33-a third via; 4-fixing the column; 5-a second bolt; 6-a second gasket; 61-a fourth via; 62-a fifth via; 7-waiting for fastening.
Detailed Description
To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
In the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Fig. 1 is a schematic view of a check bolt structure provided in an embodiment of the present application;
FIG. 2 is a cross-sectional view of a lock bolt structure provided in an embodiment of the present application;
FIG. 3 is a top view of a lock bolt structure provided in an embodiment of the present application;
referring to fig. 1 to 3, the present application provides a check bolt structure including: the bolt comprises a first bolt 1, a bolt flange 2, a first gasket 3 and a fixing column 4;
the bolt flange 2 is sleeved on the first bolt 1, and a plurality of grooves 21 sunken towards the axis of the first bolt 1 are formed in the periphery of the bolt flange 2;
the first gasket 3 is provided with a first through hole 31, and the size of the first through hole 31 is matched with that of the first bolt 1;
a plurality of second through holes 32 are arranged around the first through holes 31, and the size of the second through holes 32 is matched with that of the grooves 21;
the dimensions of the fixing post 4 are matched with the dimensions of the second through hole 32 and the groove 21, so that when the first bolt 1 is screwed through the first through hole 31, the bolt flange 2 is adjacent to the first gasket 3, and at least one groove 21 is aligned with any one second through hole 32 along the axial direction of the first bolt 1, the fixing post 4 can be inserted into the aligned groove 21 and the aligned second through hole 32.
It should be noted that the shape of the groove 21 may be a square groove, an arc groove, or a groove of any other shape, and the shape of the second through hole 32 may be a square hole, a circular hole, or a through hole of any other shape, which is not limited herein, only by ensuring that the sizes of the groove 21 and the second through hole 32 aligned with each other are matched with the size of the fixing column 4, so that the fixing column 4 can be embedded into the groove 21 and the second through hole 32 aligned with each other, and the bolt flange 2 is limited.
At present, the commonly used method for preventing the bolt from loosening is divided into three methods: friction locking, mechanical locking and permanent locking. The friction anti-loose mainly comprises methods of spring washer anti-loose, opposite-top nut (such as double-nut of Tang style), self-locking nut anti-loose, elastic ring nut anti-loose and the like; the mechanical anti-loosening mainly comprises a groove-shaped nut and a split pin, a stop washer, a series steel wire, a wedge (hadamard nut), and the like; the permanent anti-loosening method mainly comprises an edge punching anti-loosening method (a thread is broken by punching a point at the tail end of the thread), adhesion (anaerobic adhesive bonding agent), anti-loosening by welding and the like. These methods often require the cooperation of nuts or require high material requirements for the washers, and even permanent damage to the thread structure, presenting a significant obstacle to subsequent replacement or maintenance.
Specifically, the conventional anti-loosening method has the following defects:
1. the stop washer and the friction anti-loosening surface have no obvious effect on the large-torque bolt, and the construction and subsequent maintenance and disassembly are complicated;
2. the permanent anti-loosening damages the thread, which is not beneficial to subsequent replacement and maintenance;
3. the locknut has the possibility of failure, and the application range is limited in the locknut matching locking mode;
4. the split pin and the groove-shaped nut are fixed in directions, when the torque requirement is met, the hole in the bolt cannot be aligned with the groove in the groove-shaped nut, and the split pin cannot be inserted into the hole in the bolt and the groove in the groove-shaped nut to prevent looseness.
The check bolt structure of this embodiment can reach locking purpose when, solves above problem. Firstly, the anti-loose bolt structure of the embodiment is used for limiting and preventing the first bolt from loosing in the rotating direction of the first bolt, so that more accurate bolt torque can be achieved, a remarkable anti-loose effect can be achieved on a bolt with large torque, and the anti-loose bolt structure is more convenient to disassemble, assemble and maintain; secondly, the anti-loosening bolt structure of the embodiment does not damage the threads of the bolt, thereby being beneficial to subsequent replacement and maintenance; thirdly, the anti-loose bolt structure of the embodiment does not need special matching of nuts, and is wide in application range; fourth, the lockbolt structure of this embodiment also does not set up the hole on the bolt, or sets up the groove on the nut, does not need the hole on the bolt and the groove on the nut to mutually support.
The locking bolt structure that this embodiment provided, the bolt flange cover is established on first bolt, and the periphery of bolt flange is provided with a plurality of recesses sunken to first bolt axle center, be provided with first through-hole on the first gasket, the size of first through-hole and the size phase-match of first bolt, encircle around setting up a plurality of second through-holes around the first through-hole, the size of second through-hole and the size phase-match of recess, the size of stationary post and the size phase-match of second through-hole and recess, make and screw when first bolt passes first through-hole, the bolt flange is pressed close to with first gasket, and when having at least one recess and arbitrary second through-hole along the axial alignment of first bolt, recess and the second through-hole that the stationary post can imbed and align. Due to the embedding of the fixing column, the bolt flange fixedly connected with the first bolt is limited by the fixing column and cannot move, so that the first bolt can be fixed, and the purpose of preventing the first bolt from loosening is achieved.
Referring to fig. 1 to 3, in one embodiment, the anti-loose bolt structure may further include a second bolt 5, the first washer 3 is provided with a third through hole 33, and the size of the third through hole 33 matches the size of the second bolt 5, so that the second bolt 5 may pass through the third through hole 33 to fix the first washer 3 and the member to be fastened 7.
It should be noted that the number and the position of the third through holes 33 are not limited herein, as long as the first gasket 3 and the member to be fastened 7 can be fixed by the second bolt 5 and the relative position is kept unchanged. In this embodiment, in order to fix the first gasket 3 and the to-be-fastened member 7 more stably, the third through holes 33 are symmetrically disposed at two opposite ends of the first gasket 3, or at two opposite corners of the first gasket 3.
This embodiment can make the second bolt pass the third through-hole and fix first gasket with treating the fastener through set up the third through-hole on first gasket.
Referring to fig. 1 to 3, in one embodiment, the anti-loose bolt structure may further include a second gasket 6, the second gasket 6 is provided with a fourth through hole 61, a size and a position of the fourth through hole 61 match those of the first through hole 31, the second gasket 6 is provided with a fifth through hole 62, and a size and a position of the fifth through hole 62 match those of the third through hole 33.
The first bolt 1 can pass through the first through hole 31 of the first gasket 3 and the fourth through hole 61 of the second gasket 6 to be fixed with the fastener 7, and the second bolt 5 can pass through the third through hole 33 of the first gasket 3 and the fifth through hole 62 of the second gasket 6 to be fixed with the fastener 7.
In this embodiment, through at first gasket and treat to set up the second gasket between the fastener, can strengthen check bolt and treat leakproofness and frictional force between the fastener for the fastening effect is better.
Referring to fig. 1 to 3, in one embodiment, the grooves 21 are uniformly distributed around the outer circumference of the bolt flange 2, the second through holes 32 are uniformly distributed around the first through holes 31, and the number of the grooves 21 is smaller than the number of the second through holes 32.
Because the position of the first screw 1 during screwing is uncertain, it cannot be determined whether the positions of the grooves 21 and the positions of the second through holes 32 can be in one-to-one correspondence when the first screw 1 is screwed, therefore, in this embodiment, the number of the grooves 21 is designed to be smaller than the number of the second through holes 32, and in the screwing process of the first screw 1, errors of the positions of a certain groove 21 on the bolt flange 2 and a certain second through hole 32 on the first gasket 3 are accumulated, so that alignment with a higher probability is possible, and in this embodiment, the number of the grooves 21 may be one less than the number of the second through holes 32.
It should be noted that the number and size of the grooves 21 and the second through holes 32 can be adjusted according to the torque range requirement, so as to ensure that one groove 21 and one second through hole 32 can be aligned all the time during the tightening process of the first bolt 1.
The number of grooves is smaller than the number of second through holes in the embodiment, and at least one groove can be aligned with any one second through hole through error accumulation.
Referring to fig. 1-3, in one embodiment, one end of the fixing post 4 is larger than the other end, and when the fixing post 4 is inserted into the aligned recess 21 and the second through hole 32, the larger end of the fixing post 4 can be inserted into the second through hole 32 aligned with the recess 21, and the smaller end of the fixing post 4 can be inserted into the recess 21 aligned with the second through hole 32.
That is, one end of the fixing column 4 is thicker than the other end, when the fixing column 4 is embedded into the aligned groove 21 and the second through hole 32, the thicker end is embedded into the second through hole 32 aligned with the groove 21 in an interference fit manner, and the thinner end is embedded into the groove 21 aligned with the second through hole 32, because the sizes of the groove 21 and the second through hole 32 are matched, the groove bottom of the groove 21 can press the thicker end of the fixing column 4 embedded into the second through hole 32, and the fixing column 4 is prevented from jumping out and failing in the vibration process.
This embodiment is through the both ends design with the fixed column for the different both ends of size to adopt interference fit's mode embedding to align recess and second through-hole, make the recess and the second through-hole of aligning can fix and spacing this fixed column, prevent that the fixed column from jumping out because of the vibration.
Referring to fig. 1-3, in one embodiment, the specific method of fastening a fastener is as follows:
the second bolt 5 penetrates through the third through hole 33 and the fifth through hole 62, the second gasket 6 and the first gasket 3 are fixed on the to-be-fastened piece 7, then the first bolt 1 penetrates through the first through hole 31 and the fourth through hole 61 and is loaded to certain torque to be screwed with the to-be-fastened piece 7, and finally the fixing column 4 is embedded into the groove 21 and the second through hole 32 with the highest alignment degree.
The shearing force provided by the second bolt 5 of the anti-loose bolt structure and the friction force provided by the gasket are main acting forces of the anti-loose bolt structure, and when the anti-loose bolt structure is disassembled and maintained, the second bolt 5 can be firstly disassembled, and then the first bolt 1 is disassembled. The shearing force of the second bolt 5 of the anti-loosening bolt structure is the internal force of the fastener 7 to be fastened, the influence of external load is small, and the loosening probability is small.
This embodiment makes this check bolt structure can closely fix, difficult not hard up with treating the fastener through mutually supporting of each part of this check bolt structure.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A check bolt structure, comprising: the first bolt, the bolt flange, the first gasket and the fixing column;
the bolt flange is sleeved on the first bolt, and a plurality of grooves sunken towards the axis of the first bolt are formed in the periphery of the bolt flange;
a first through hole is formed in the first gasket, and the size of the first through hole is matched with that of the first bolt;
a plurality of second through holes are arranged around the first through holes in a surrounding mode, and the size of each second through hole is matched with that of the corresponding groove;
the size of the fixing column is matched with the size of the second through hole and the size of the groove, so that when the first bolt penetrates through the first through hole to be screwed, the bolt flange is close to the first gasket, and at least one groove is aligned with any one second through hole along the axial direction of the first bolt, the fixing column can be embedded into the aligned groove and the aligned second through hole.
2. The lock bolt structure according to claim 1, characterized by further comprising: a second bolt;
and a third through hole is formed in the first gasket, and the size of the third through hole is matched with that of the second bolt.
3. The lock bolt structure according to claim 2, characterized by further comprising: a second gasket;
and a fourth through hole is formed in the second gasket, and the size and the position of the fourth through hole are matched with those of the first through hole.
4. The lock bolt structure according to claim 3, wherein:
and a fifth through hole is formed in the second gasket, and the size and the position of the fifth through hole are matched with those of the third through hole.
5. The lock bolt structure according to claim 1, characterized in that:
the grooves are uniformly distributed on the periphery of the bolt flange.
6. The check bolt structure of claim 5, wherein:
the second through holes are evenly distributed around the first through holes.
7. The lock bolt structure according to claim 6, wherein:
the number of the grooves is smaller than the number of the second through holes.
8. The check bolt structure of claim 1, characterized in that:
the size of one end of the fixing column is larger than that of the other end of the fixing column, when the fixing column is embedded into the groove and the second through hole which are aligned, the end with the large size of the fixing column can be embedded into the second through hole which is aligned with the groove, and the end with the small size of the fixing column can be embedded into the groove which is aligned with the second through hole.
9. The lock bolt structure according to claim 2, wherein:
the third through holes are arranged at two opposite ends of the first gasket.
10. The lock bolt structure according to claim 2, wherein:
the third through holes are arranged at two opposite corners of the first gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221901226.5U CN218347745U (en) | 2022-07-22 | 2022-07-22 | Anti-loosening bolt structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221901226.5U CN218347745U (en) | 2022-07-22 | 2022-07-22 | Anti-loosening bolt structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218347745U true CN218347745U (en) | 2023-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221901226.5U Active CN218347745U (en) | 2022-07-22 | 2022-07-22 | Anti-loosening bolt structure |
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| Country | Link |
|---|---|
| CN (1) | CN218347745U (en) |
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- 2022-07-22 CN CN202221901226.5U patent/CN218347745U/en active Active
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