CN216519297U - Locking mechanism and mechanical locking device - Google Patents
Locking mechanism and mechanical locking device Download PDFInfo
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- CN216519297U CN216519297U CN202123190272.7U CN202123190272U CN216519297U CN 216519297 U CN216519297 U CN 216519297U CN 202123190272 U CN202123190272 U CN 202123190272U CN 216519297 U CN216519297 U CN 216519297U
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Abstract
The utility model discloses a locking mechanism, and relates to the field of mechanical structures needing unidirectional and/or bidirectional locking. The utility model comprises a supporting piece, a locking piece, a moving piece, an unlocking mechanism and an elastic piece, and can realize that the moving part and the supporting part can move and be locked with each other. The stepless locking and unlocking device has the characteristics of capability of realizing stepless locking and unlocking, no noise in the operation process, easy realization of structure, wide application range, small structural shape limitation of a moving part and a supporting part and the like.
Description
Technical Field
The utility model relates to a locking mechanism, in particular to the field of mechanical structures needing unidirectional and/or bidirectional locking.
Background
All can use in numerous scenes such as mechanical equipment field, automotive industry field or house and carry out the condition of one-way and/or two-way locking with the motion, and current locking generally is mechanisms such as rack and pinion meshing, ratchet pawl meshing, bolt and pinhole meshing and many connecting rods locking, and these two-way locking mechanisms generally are the locking mechanism of rank, and when needs form stepless locking, the structure is comparatively complicated, and there is collision noise or frictional noise production in the action. Therefore, there is a need for a locking mechanism that can achieve stepless locking, and in an environment with vibration, the locking mechanism cannot generate locking noise, and in adjustment, the locking mechanism cannot generate friction noise.
Disclosure of Invention
In order to solve the problem that mechanical equipment can be locked and unlocked at any position and reduce the generation of friction sound and impact sound caused by locking and unlocking mechanisms, the locking mechanism with a simple structure is provided: a locking mechanism capable of being locked in one direction or two directions comprises a moving part, a supporting part and a locking part, wherein the locking part is of a fan-shaped structure, and the fan-shaped surface of the locking part is in contact with the moving part; the moving part is arranged in a closed or semi-closed space formed by the locking part or the locking part and the supporting part. Wherein the support member comprises at least a spindle or a central hole supporting the locking member; the locking part comprises a sector and a rotating central hole or a central shaft, the distance between the sector and the rotating central hole or the central shaft is gradually increased, the locking piece is rotatably connected to the central shaft or the central hole of the supporting piece, and the sector is meshed with the meshing surface on the moving piece to realize the locking of the locking mechanism.
Furthermore, the locking mechanism is provided with an automatic locking elastic component, which is provided with two ends, wherein one end of the automatic locking elastic component is fixed on the supporting piece, the other end of the automatic locking elastic component directly or indirectly exerts acting force on the locking piece, the direction of the acting force is the end with small distance between the sector and the rotating central hole or the central shaft, the locking of the locking mechanism is realized, and the type of the elastic component is generally a torsion spring, a compression spring, a plane volute spring or a rubber spring. The locking mechanism can realize the automatic locking function through the acting force of the elastic component on the locking component, and only external force is needed to overcome the acting force of the elastic component during unlocking.
The moving component is provided with an engaging surface which is contacted with the locking component, and the engaging surface can be of a plane or curved surface structure.
Furthermore, the number of the locking parts is one or more, when the locking piece is one or a plurality of locking parts are arranged in the same direction at the same time, the unidirectional locking of the moving part can be realized, and when the locking parts are arranged in the opposite directions, the bidirectional locking of the moving part can be realized.
Optionally, an unlocking mechanism for contact locking can be further arranged on the locking mechanism, and at least one end of the unlocking mechanism is directly or indirectly connected with the locking component; an elastic component is arranged among the unlocking mechanism, the supporting component and/or the locking component, the elastic component applies acting force in the opposite direction of the unlocking direction to the unlocking mechanism, and the acting force applied by the elastic component acts on the locking component indirectly through the unlocking mechanism to realize locking of the locking mechanism; meanwhile, the unlocking mechanism directly overcomes the acting force of the elastic component applied to the unlocking mechanism to realize unlocking.
Preferably, the unlocking mechanism and the locking component in the locking mechanism are connected through a link mechanism, a sliding block and sliding groove mechanism, a tooth-shaped meshing mechanism or other linkage mechanisms.
Preferably, the sector structure of the locking mechanism is an asymmetric sector structure, and the sector surface of the locking mechanism is a logarithmic spiral curved surface.
Preferably, the locking mechanism, the sector surface is a rough surface with transverse and/or longitudinal lines or concave-convex surface, of course, any of the locking mechanisms can be applied to a mechanical device requiring unidirectional or bidirectional locking, in which case, the moving part and the fixed part in the locking device are connected or integrated with the moving part and the fixed part and the supporting part.
The embodiment of the utility model has the following technical effects:
1. stepless locking between two pieces can be realized, and stepless adjustment can also be realized;
2. related parts, as long as the structural requirements of the locking piece are ensured, other structures can be changed according to specific requirements, the locking and unlocking of the linear motion mechanism can be realized, and the locking and unlocking of the curvilinear motion mechanism can also be realized;
3. when the locking mechanism is in a locking state, the locking piece always has locking force to keep and compress the moving piece, and in the operation process of the whole equipment, the locking mechanism does not generate vibration noise;
4. when the lock is unlocked, the locking piece can be separated from the moving piece, so that the movement between the moving piece and the supporting piece can not generate friction noise due to external force, and meanwhile, the service life of the mechanism can be prolonged;
5. the locking mechanism can be applied to occasions where various moving parts move relatively to the supporting part and can be locked between the moving parts and the supporting part, and the locking mechanism comprises but is not limited to adjusting occasions in the fields of automobiles, household articles and the like, and has a wide application range;
6. compared with a common bolt type locking and unlocking mechanism, the locking mechanism not only can be adjusted in a stepless mode, but also is simple in structure, and is more favorable for guaranteeing the manufacturing error of a product;
7. the locking mechanism saves labor in unlocking, only needs to overcome the spring force applied to the locking piece, and is usually smaller due to the special structure of the locking piece.
Drawings
Further details and advantages of the utility model will become apparent in the following description of embodiments with the aid of the figures.
The figures show:
FIG. 1 is a basic schematic diagram of a locking mechanism
FIG. 2 is a view of the combination of the elastic member and the unlocking mechanism
FIG. 3 is a diagram of a spring-actuated locking block
FIG. 4 is a schematic view of the linkage mechanism unlocking
FIG. 5 is a schematic view of the surface of the upper segment of the locking member
Wherein
1. A moving part 11, an engaging surface 12 and a moving part supporting surface;
2. a support part 21, a central shaft 22, a support part support surface 23 and a support frame;
3. a locking piece 31, a locking surface 32, a central hole 33 and meshing teeth;
4. an unlocking mechanism 41, an unlocking tooth 42 and an unlocking rod;
61. extension spring, 62, compression spring, 63, torsion spring;
71. and an unlocking mechanism connecting rod 72 and a locking surface projection drawing.
Detailed Description
The following detailed description of the present invention will be provided in order to further understand the concept of the present invention, the technical problems to be solved, the technical features constituting the technical solutions, and the technical effects brought by the technical solutions. However, the description of the embodiments is illustrative and not intended to limit the present invention.
As can be seen from fig. 1, the lock mechanism is constituted by the mover 1, the supporter 2, the lock member 3, the tension spring 61, and the lock release mechanism 4.
As shown in fig. 1, the moving element 1 at least includes an engaging surface 11 and a moving element supporting surface 12, the supporting element 2 at least includes a supporting element supporting surface 22, a central shaft 21 and a supporting frame 23, the locking element 3 at least includes a locking surface 31 and a central hole 32, the distance between the locking surface 31 and the central hole 32 is gradually increased from small to small, the locking surface 31 is generally a curved surface structure stretched and unfolded by logarithmic spiral, and for increasing the locking reliability, the engaging surface 11 and the locking surface 31 may be provided as a rough texture surface or a rough surface of a concave-convex area as shown in fig. 5.
In fig. 1, the lower moving member supporting surface 12 of the moving member 1 slides on the supporting member supporting surface 22 along a prescribed direction, the upper engaging surface 11 forms a contact engagement with the locking surface 31 in a detachable manner, the locking member 3 forms a rotatable hinge joint with the central shaft 21 of the supporting member 2 through the central hole 32, and the locking member 3 can rotate around the central shaft 21, the extension spring 61 is connected with the locking members 3 on both sides, to the locking piece 3, a force is applied in the locking direction (the left side locking piece 3 is in the direction of F1+, the right side locking piece 3 is in the direction of F1-), and under the locking force, the slider 1 can form two-direction locking, when only the moving member 1 is required to form unidirectional locking, only one locking member 3 may be used or the locking members 3 may be installed in the same direction.
In order to unlock the locking mechanism, an unlocking mechanism 4 is connected with the locking piece 3, the unlocking mechanism 4 and the support frame 23 form a cylinder or a sliding connection which can move along a fixed direction, and the locking piece 3 is driven to overcome the locking acting force generated by the extension spring 61 through the downward movement of the unlocking mechanism 4, so that the locking mechanism is unlocked, and the moving piece 1 can move along the direction F1.
In general, in order to allow the unlocking mechanism 4 to drive a plurality of locking members 3, the transmission is effected by means of a toothed toothing, and the unlocking teeth 41 are provided on the unlocking mechanism 4 and the toothing 33 cooperating therewith are also provided on the locking members 3. Of course, the linkage can be performed by the link mechanism shown in fig. 4 or the slide block and slide groove structure shown in fig. 2 and 3, and the transmission linkage unlocking is not limited to the tooth-shaped meshing structure.
As shown in fig. 2, the arrangement of the extension spring 61 may also be designed according to specific requirements, for example, the arrangement may be designed as a structural form of a compression spring 62 shown in fig. 2, the compression spring 62 is arranged between the unlocking mechanism 4 and the support frame 23, through the cooperation between the compression spring 62 and the unlocking mechanism 4, the compression spring 62 generates an upward force to drive the unlocking mechanism 4 to move upward, and the unlocking mechanism 4 drives the locking member 3 to move in the locking direction through tooth-shaped meshing transmission or link mechanism transmission, so as to implement the locking function of the locking mechanism; during unlocking, external force is applied to the locking mechanism 4, the spring force of the compression spring 62 is overcome, and the locking piece 3 is driven to move towards the unlocking direction through tooth-shaped meshing or a link mechanism, so that the unlocking function of the locking mechanism is realized.
As shown in fig. 3, torsion springs may be provided and applied to the locking members 3, respectively, and the locking force of the locking members 3 may be provided by the respective torsion springs 63.
As shown in fig. 1, the locking mechanism of the present invention operates on the principle that when the moving element 1 is at the required locking position, the moving element 1 is locked and cannot move either to the left or to the right by the curved structure of the locking surface 31 on the locking element 3 and the locking force generated by the tension spring 61 to place the moving element 1 at the locking position. If the moving part 1 moves leftwards or rightwards relative to the support part 2, the unlocking mechanism 4 needs to move downwards, the locking force generated by the extension spring 61 is overcome, the locking part 3 is driven to rotate towards the unlocking direction, the locking part 3 is separated from the moving part 1, the moving part 1 can act, if the locking is required again, the unlocking mechanism 4 only needs to be restored to the initial position, and the locking part 3 contacts with the moving part 1 again under the locking force generated by the extension spring 61 and is in a locking state.
The locking mechanism of the utility model can realize stepless locking regulation because the locking surface 31 and the meshing surface 11 are continuous, and simultaneously, when in locking, the locking piece 3 can always keep the moving piece 1 in a locking state under the locking force applied by the spring without generating a gap, and when the locking mechanism is used in an environment with vibration, the locking mechanism can not generate collision noise, when the moving piece 1 needs to move, the locking piece can be separated from the sliding block, the regulation can not be damped, and the friction noise can not be generated.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A locking mechanism comprises a moving component, a supporting component and a locking component, and is characterized in that: the locking component is of a fan-shaped structure, and the fan-shaped surface of the locking component is in contact with the moving component; the moving part is arranged in a closed or semi-closed space formed by the locking part or the locking part and the supporting part.
2. The latch mechanism of claim 1, wherein: the moving component is provided with an engaging surface which is contacted with the locking component, and the engaging surface can be of a plane or curved surface structure.
3. The latch mechanism of claim 1, wherein: the locking parts are one or more and are arranged along the same direction or opposite directions.
4. The latch mechanism of claim 1, wherein: still include elastomeric element, elastomeric element includes both ends, and at least one end is connected with locking part.
5. The lock mechanism of any one of claims 1-4, wherein: the locking mechanism is characterized by also comprising an unlocking mechanism, wherein at least one end of the unlocking mechanism is directly or indirectly connected with the locking component; an elastic member is provided between the unlocking mechanism, the unlocking mechanism and the support member and/or the locking member.
6. The latch mechanism of claim 5, wherein: the unlocking mechanism is connected with the locking component through a connecting rod mechanism, a sliding block sliding groove mechanism or a tooth-shaped meshing mechanism.
7. The lock mechanism of any one of claims 1-4 and 6, wherein: the fan-shaped structure is an asymmetric fan-shaped structure, and the fan-shaped surface of the fan-shaped structure is a logarithmic spiral curved surface.
8. The lock mechanism of any one of claims 1-4 and 6, wherein: the sector surface is a rough texture surface or a rough surface of a concave-convex area.
9. A mechanical locking device, characterized by: comprising a locking mechanism according to any of claims 1 to 8, wherein the moving part is connected to or integrated with the moving part and the fixed part is connected to or integrated with the support part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123190272.7U CN216519297U (en) | 2021-12-18 | 2021-12-18 | Locking mechanism and mechanical locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123190272.7U CN216519297U (en) | 2021-12-18 | 2021-12-18 | Locking mechanism and mechanical locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519297U true CN216519297U (en) | 2022-05-13 |
Family
ID=81501126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123190272.7U Active CN216519297U (en) | 2021-12-18 | 2021-12-18 | Locking mechanism and mechanical locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519297U (en) |
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2021
- 2021-12-18 CN CN202123190272.7U patent/CN216519297U/en active Active
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