CN111082700A

CN111082700A - Controllable multi-state clamping structure and combined device

Info

Publication number: CN111082700A
Application number: CN201811218015.XA
Authority: CN
Inventors: 杨斌堂; 张茂胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-18
Filing date: 2018-10-18
Publication date: 2020-04-28

Abstract

The invention provides a controllable multi-state clamping structure and a combined device, comprising: the device comprises a moving part (1), a guide sleeve (2), a clamping part (3) and a moving sleeve (4); the guide sleeve (2) is connected with the moving sleeve (4) in a nested manner, and a regulating chamber (201) is formed in the guide sleeve (2); the moving piece (1) passes through the guide hole (202) of the guide sleeve (2) and the adjusting chamber (201), and the clamping piece (3) is positioned in the adjusting chamber (201). The invention can realize the switching among the two-way locking state, the one-way motion state and the two-way motion state, thereby realizing that the motion piece can not move in two directions, can move only in one direction and can move in both directions.

Description

Controllable multi-state clamping structure and combined device

Technical Field

The present invention relates to clamping structures, and in particular, to controllable multi-state clamping structures and combination devices. In particular to a multi-state clamping structure which can be switched among a two-way locking state, a one-way motion state and a two-way motion state.

Background

The clamping structure is mainly applied to self-locking of the spatial position of a mechanism and clamping of inchworm movement. The active control of the clamping and locking of the target object is realized by controlling the working state of the clamping and clamping device.

As for the clamping mechanism in the prior art, for example, those skilled in the art can refer to "an electromagnetic clamping mechanism and a linear driving device, a combination thereof" [ application No. 201410387626.2, publication No. CN104167957A ], which discloses an electromagnetic clamping mechanism comprising an electromagnet, a permanent magnet, and a deformable body, wherein a magnetic pole of the permanent magnet is in direct contact with or close to a magnetic pole of the electromagnet to form a control magnetic circuit, and the deformable body is rigidly connected with the permanent magnet; the permanent magnet moves relative to the electromagnet under the drive of the magnetic field of the control magnetic circuit and drives the deformation body to deform, so that clamping locking and releasing are realized.

Disclosure of Invention

In view of the drawbacks of the prior art, an object of the present invention is to provide a controllable multi-state clamping structure and a combined device.

According to the present invention there is provided a controllable multi-state clamping structure comprising: the device comprises a moving part 1, a guide sleeve 2, a clamping piece 3 and a moving sleeve 4;

the guide sleeve 2 is connected with the moving sleeve 4 in a nested manner, and a regulating chamber 201 is formed in the guide sleeve 2; the moving part 1 passes through the guide hole 202 of the guide sleeve 2 and the adjusting chamber 201, and the clamping piece 3 is positioned in the adjusting chamber 201;

the width of the adjusting chamber 201 in the axial direction of the guide sleeve 2 is changed from wide to narrow, so that a wide end 2011 and a narrow end 2012 are formed; the movement sleeve 4 is positioned on the side of the wide end 2011 of the regulation chamber 201;

the structure of the adjusting chamber 201 can be changed between a two-way locking state, a one-way movement state and a two-way movement state through the relative movement of the guide sleeve 2 and the moving sleeve 4 in the axial direction;

-a two-way deadlocked state: the clamping piece 3 is extruded by the moving piece 1, the adjusting chamber 201 and the moving sleeve 4, so that the moving piece 1 is locked on the guide sleeve 2;

-a bidirectional motion state: at least one of the moving part 1, the cavity wall of the adjusting cavity 201 and the moving sleeve 4 is separated from the clamping piece 3, and the moving part 1 can freely move towards the wide end 2011 and can freely move towards the narrow end 2012;

-a unidirectional motion state: the unidirectional motion state is a critical state of the change between the bidirectional locking state and the bidirectional motion state, in which the moving member 1 can move freely toward the wide end 2011 and is locked toward the narrow end 2012.

Preferably, the guide sleeve 2 is in threaded connection with the movement sleeve 4, the movement sleeve 4 being moved by rotation relative to the guide sleeve 2 in the axial direction.

Preferably, the method further comprises the following steps: a stopper 5;

the guide sleeve 2 and the moving sleeve 4 are locked by a stop piece 5.

Preferably, the method further comprises the following steps: a drive mechanism 6;

the sports boot 4 comprises: the sleeve 401, the moving elastic piece 402 and the limiting block 403 are connected in sequence; the sleeve member 401 is relatively fixed with the guide sleeve 2;

in the two-way locking state: the clamping piece 3 is extruded by the moving piece 1, the adjusting chamber 201 and the limiting block 403, the moving piece 1 is locked on the guide sleeve 2, and the moving elastic piece 402 is extruded by the sleeve piece 401 and the limiting block 403 to be in a maximum compression state in the axial direction;

in the one-way motion state: under the driving of the moving part 1, the clip 3 can push the limiting block 403 to approach the sleeve 401 to compress the moving elastic part 402, so that the moving part 1 can overcome the elastic force of the moving elastic part 402 and freely move towards the wide end 2011.

Under the magnetic force, electric force or mechanical force applied by the driving mechanism 6, the stopper 403 can overcome the elastic force of the moving elastic member 402 to approach the sleeve 401, so that the unidirectional moving state is changed to the bidirectional moving state.

Preferably, the drive mechanism 6 is arranged in the guide sleeve 2, in the sleeve 401 or connected between the sleeve 401 and the moving elastic member 402.

Preferably, a pushing elastic piece 203 is connected between the clip piece 3 and the narrow end 2012; the urging elastic member 203 provides the card member 3 with an elastic force to escape from the regulation chamber 201.

Preferably, the mover 1 moves axially or circumferentially with respect to the guide sleeve 2.

The combined device of the controllable multi-state clamping structure comprises a plurality of the controllable multi-state clamping structures;

of a plurality of said controllable multi-state clamping structures, at least two are arranged opposite to each other in the direction of movement of the moving element 1.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention has reasonable structure and easy maintenance.

2. The invention can realize the switching among the two-way locking state, the one-way motion state and the two-way motion state, thereby realizing that the motion piece can not move in two directions, can move only in one direction and can move in both directions.

3. In the combined device, the switching of the movement direction of the unidirectional movement can be realized.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the present invention in a two-way locking state.

FIG. 3 is a schematic diagram of the critical state of the present invention.

Fig. 4 is a schematic structural view of the present invention in a two-way movement state.

Fig. 5 is a schematic structural diagram of another embodiment of the present invention.

Fig. 6 is a schematic structural diagram of another embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a further embodiment of the present invention.

Fig. 8 is a schematic structural diagram of yet another embodiment of the present invention.

Fig. 9 is a schematic structural view of one embodiment of the present invention in which the mover is rotatable.

FIG. 10 is a schematic diagram of the critical state of the present invention.

FIG. 11 is a schematic structural diagram of one embodiment of the combination of the present invention.

Fig. 12 is a schematic structural view of another embodiment of the combination of the present invention.

Fig. 13 is a schematic structural view of yet another embodiment of the combination of the present invention.

FIG. 14 is a schematic structural diagram of yet another embodiment of the combination of the present invention.

The figures show that:

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Basic embodiment

Preferred examples of the basic embodiment will be specifically described below.

Example 1

As shown in fig. 1, the guide sleeve 2 is screwed to the moving sleeve 4, and the moving sleeve 4 is relatively moved in the axial direction with respect to the guide sleeve 2 by rotation.

The controllable multi-state clamping structure further comprises: a stopper 5; the guide sleeve 2 and the moving sleeve 4 are locked by a stop piece 5.

The mover 1 moves axially relative to the guide sleeve 2.

After the stop 5 is screwed in or out, the moving sleeve 4 can be screwed into or out of the guide sleeve 2 to change the length of the adjustment chamber 201 in the axial direction, so that the width of the wide end 2011 becomes larger or smaller. When the stop piece 5 is screwed or installed, the moving sleeve 4 and the guide sleeve 2 are locked and fixed relatively.

The moving sleeve 4 has a positioning element 7, wherein the positioning element 7 may be a score line or a rib. By observing the position relation between the positioning piece 7 and the end face of the guide sleeve 2, the current state can be identified to be a bidirectional locking state, a unidirectional motion state and a bidirectional motion state.

As shown in fig. 2, the scribed line is positioned on the inner side of the guide sleeve 2, the state is a two-way locking state, and the clamping piece 3 adopts a ball body which does not have any moving space. As shown in fig. 4, the scribed lines are positioned at the outer side of the guide sleeve 2, and the state is a bidirectional movement state, the ball is not blocked, so that the moving member 1 can move bidirectionally; the ball body can be connected with the moving sleeve 4 through magnetic force or a connecting piece, so that the ball body is separated from the guide sleeve 2 and/or the moving part 1, and the clamping piece 3 can realize a bidirectional moving state as long as the clamping piece is separated from any one of the moving part 1, the guide sleeve 2 and the moving sleeve 4. As shown in fig. 3, there is an intermediate threshold condition during the transition from the double-locking body to the double-movement state and from the double-movement body to the double-locking state. In this critical state, the mover 1 can move only toward the wide end 2011 and cannot move toward the narrow end 2012. Preferably, in a critical state, although the moving member 1, the guide sleeve 2 and the moving sleeve 4 are rigid members, the moving member, the guide sleeve 2 and the moving sleeve are still deformed to some extent after being stressed, so that the critical state is realized.

Example 2

Fig. 5 shows a modification of fig. 1 in fig. 5. In this variation, the positioning member 7 is a sliding slot and a buckle, and is disposed on the moving sleeve 4 and the guiding sleeve 2, respectively, and when the buckle enters the sliding slot, the state is identified as a one-way moving state.

Example 3

As shown in fig. 6, the controllable multi-state clamp structure further comprises: a drive mechanism 6;

A pushing elastic piece 203 is connected between the clip piece 3 and the narrow end 2012; the urging elastic member 203 provides the card member 3 with an elastic force to escape from the regulation chamber 201.

As shown in fig. 6, in a one-way motion state. When the motion element 1 tends to move towards the narrow end 2012, the ball is blocked by the motion element 1, the guide sleeve 2 and the motion sleeve 4, and the motion element 1 cannot move towards the narrow end 2012. When the moving member 1 moves towards the wide end 2011, under the driving of the moving member 1, the clip 3 can push the limiting block 403 to approach towards the sleeve 401 to compress the moving elastic member 402, so that the moving member 1 can overcome the elastic force of the moving elastic member 402 and move freely towards the wide end 2011.

When the limiting block 403 moves towards the wide end 2011 under the driving of the driving mechanism 6, the ball can be kept away from the contact with the cavity wall of the adjusting cavity 201 of the moving part 1 or the guide sleeve 2, and the state of bidirectional movement is changed. The driving force of the driving mechanism 6 is derived from a magnetic force, or may be a mechanical force or an electrostatic force in a modified example.

When the moving sleeve 4 moves to the farthest position toward the narrow end 2012, the two-way locking state is entered.

Example 4

Fig. 7 shows a modification of fig. 6. In fig. 7, the drive mechanism 6 is connected between the sleeve 401 and the moving elastic member 402. The sphere is a permanent magnet or a ferromagnet.

Example 5

Fig. 8 shows a modification of fig. 7. In fig. 8, the driving mechanism 6 includes two magnets, which attract each other, so that the magnet on the right side in fig. 8 is attracted to push the ball to the left to move. The spheres may be of a non-magnetic material, such as a plastic or ceramic material.

Example 6

As shown in fig. 9, fig. 9 is a modification of fig. 1. In fig. 9, the mover 1 moves circumferentially relative to the guide sleeve 2. The movement sleeve 4 is not shown in fig. 9. In the one-way movement state as shown in fig. 9, the mover 1 can rotate only clockwise and cannot rotate counterclockwise. As shown in fig. 10, has changed from the unidirectional motion state to the bidirectional motion state.

Example 7

The invention provides a combination device of a controllable multi-state clamping structure, which comprises a plurality of controllable multi-state clamping structures; of a plurality of said controllable multi-state clamping structures, at least two are arranged opposite to each other in the direction of movement of the moving element 1.

As shown in fig. 11, 12, 13 and 14, the combination can realize a two-way locking state and a two-way moving state, and can also realize a one-way moving state in two opposite directions. For example, in fig. 11, 12 and 13, the left unidirectional movement state or the right unidirectional movement state can be realized. For another example, in fig. 14, a clockwise unidirectional motion or a counterclockwise unidirectional motion state may be implemented.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A controllable multi-state clamping structure, comprising: the device comprises a moving part (1), a guide sleeve (2), a clamping part (3) and a moving sleeve (4);

the guide sleeve (2) is connected with the moving sleeve (4) in a nested manner, and a regulating chamber (201) is formed in the guide sleeve (2); the moving piece (1) penetrates through a guide hole (202) of the guide sleeve (2) and the adjusting chamber (201), and the clamping piece (3) is positioned in the adjusting chamber (201);

the width of the adjusting chamber (201) in the axial direction of the guide sleeve (2) is changed from wide to narrow, and a wide end (2011) and a narrow end (2012) are formed; the moving sleeve (4) is positioned on one side of the wide end (2011) of the adjusting chamber (201);

the structure of the adjusting chamber (201) can be changed between a bidirectional locking state, a unidirectional movement state and a bidirectional movement state through the relative movement of the guide sleeve (2) and the movement sleeve (4) in the axial direction;

-a two-way deadlocked state: the clamping piece (3) is extruded by the moving piece (1), the adjusting chamber (201) and the moving sleeve (4), and the moving piece (1) is locked on the guide sleeve (2);

-a bidirectional motion state: at least one component of the moving piece (1), the cavity wall of the adjusting cavity (201) and the moving sleeve (4) is separated from the clamping piece (3), and the moving piece (1) can freely move towards the wide end (2011) and can freely move towards the narrow end (2012);

-a unidirectional motion state: the unidirectional motion state is a critical state changing between a bidirectional locking state and a bidirectional motion state, and in the unidirectional motion state, the motion piece (1) can freely move towards the wide end (2011) and is locked towards the narrow end (2012).

2. A controllable multi-state clamp structure according to claim 1, characterized in that the guiding sleeve (2) is threaded to the moving sleeve (4), and the moving sleeve (4) is relatively moved in axial direction with respect to the guiding sleeve (2) by rotation.

3. A controllable multi-state clamp structure according to claim 1, further comprising: a stopper (5);

the guide sleeve (2) and the moving sleeve (4) are locked by a stop piece (5).

4. A controllable multi-state clamp structure according to claim 1, further comprising: a drive mechanism (6);

the sports sleeve (4) comprises: the sleeve piece (401), the moving elastic piece (402) and the limiting block (403) are connected in sequence; the sleeve member (401) and the guide sleeve (2) are relatively fixed;

in the two-way locking state: the clamping piece (3) is extruded by the moving piece (1), the adjusting chamber (201) and the limiting block (403), the moving piece (1) is locked on the guide sleeve (2), and the moving elastic piece (402) is extruded to the maximum compression state by the sleeve piece (401) and the limiting block (403) in the axial direction;

in the one-way motion state: under the drive of the moving piece (1), the clamping piece (3) can push the limiting block (403) to approach the sleeve piece (401) so as to compress the moving elastic piece (402), and therefore the moving piece (1) can overcome the elasticity of the moving elastic piece (402) and freely move towards the wide end (2011) direction.

Under the action of magnetic force, electric force or mechanical force exerted by the driving mechanism (6), the limiting block (403) can overcome the elastic force of the moving elastic piece (402) to approach the sleeve piece (401), so that the unidirectional motion state is changed into the bidirectional motion state.

5. A controllable multi-state clamp structure according to claim 4, characterized in that the drive mechanism (6) is arranged in the guide sleeve (2), in the sleeve (401) or connected between the sleeve (401) and the moving spring (402).

6. A controllable multi-state clamping structure according to claim 1, characterized in that a push spring (203) is connected between the escapement piece (3) and the narrow end (2012); the pushing elastic member (203) provides an elastic force for disengaging the regulation chamber (201) to the card member (3).

7. A controllable multi-state clamp structure according to claim 1, characterized in that the moving member (1) moves axially or circumferentially with respect to the guide sleeve (2).

8. A combination of a controllable multi-state clamp structure, comprising a plurality of controllable multi-state clamp structures as claimed in any one of claims 1 to 7;

among the plurality of controllable multi-state clamping structures, at least two controllable multi-state clamping structures are oppositely arranged in the moving direction of the moving element (1).