CN217942591U

CN217942591U - Movable supporting structure with multiple force locking function

Info

Publication number: CN217942591U
Application number: CN202221733195.7U
Authority: CN
Inventors: 李绍林; 陈丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-12-02
Anticipated expiration: 2032-07-06

Abstract

A movable supporting structure with a force-multiplying locking function comprises a support, a supporting piece, an elastic piece, a lever and a driving device, wherein the support is provided with an inner cavity, the top surface of the support is provided with a through hole communicated with the inner cavity, and the inner cavity is provided with a rotating shaft which is vertically arranged; the supporting piece is connected with the through hole in a sliding mode, the bottom of the supporting piece is located in the inner cavity, and the top of the supporting piece extends out of the through hole and is used for being matched with a heavy object; the elastic piece is used for driving the supporting piece to move upwards; the length of the power arm of the lever is larger than that of the resistance arm, and the end part of the power arm is connected with the driving device and used for driving the power arm to rotate, so that the end part of the resistance arm is abutted against the side surface of the supporting piece, and the supporting piece is matched with the end part of the resistance arm in a locking mode. The movable supporting structure utilizes the lever principle, not only can rotate to assist in fixing, but also can increase the locking force during locking, thereby improving the use stability of the movable supporting structure.

Description

Movable supporting structure with multiple-force locking function

Technical Field

The utility model relates to a movable support structure technical field, more specifically relates to a movable support structure with multiple power locking function.

Background

Currently, the existing movable supporting structure is assisted by the lever principle. For example, chinese patent CN201922316888 discloses an auxiliary support mechanism for a rotary lever of a machining fixture. Therein, the following is disclosed: the auxiliary supporting mechanism comprises a pressing plate, a rotary cylinder for driving the pressing plate to horizontally rotate is arranged on the lower side of the pressing plate, and a lever structure is formed by the rotary cylinder and a rotary fulcrum connected with the pressing plate, so that the pressing plate can vertically rotate around the rotary fulcrum. The rotary cylinder is arranged in the middle of the lower side of the pressure plate. The auxiliary supporting structure utilizes the lever to move away to realize the rotation of the pressing plate, so that the processing stability and rigidity of a workpiece are improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an utilize activity bearing structure of lever principle, this activity bearing structure can not only realize in the above-mentioned background art and come supplementary fixed through rotating, locking power when can increase the locking moreover to improve activity bearing structure's stability in use.

In order to achieve the above object, the technical solution of the present invention is as follows.

A movable support structure with a power-multiplying locking function, comprising:

the support is provided with an inner cavity, the top surface of the support is provided with a through hole communicated with the inner cavity, and the inner cavity is provided with a rotating shaft which is vertically arranged;

the supporting piece is connected with the through hole in a sliding mode, the bottom of the supporting piece is located in the inner cavity, and the top of the supporting piece extends out of the through hole and is used for being matched with a heavy object;

for driving the support an elastic member moving upward;

the length of the power arm of the lever is larger than that of the resistance arm, and the end part of the power arm is connected with the driving device and used for driving the power arm to rotate, so that the end part of the resistance arm is pressed against the side surface of the supporting piece, and the supporting piece is matched with the end part of the resistance arm in a locking mode.

Furthermore, the end part of the power arm is provided with a movable groove, and the driving device is movably connected in the movable groove.

Furthermore, the driving device is movably connected in the movable groove through a bolt, a limiting piece is arranged on one side, close to the cylinder, of the lever, and the limiting piece is in threaded connection with the bolt.

The driving device is a cylinder.

Further, the inner cavity comprises a first cavity and a second cavity which are communicated; the locking matching position is positioned in the first cavity, and the connecting position of the driving device and the lever is positioned in the second cavity; the rotating shaft is arranged in the first cavity;

the top surface and the bottom surface of the first cavity are both planes, and the distance between the top surface and the bottom surface is a first distance;

the lever is matched with the first cavity in a rotating supporting mode, and the first distance is matched with the height of the lever.

Further, the cross-sectional shape of the second cavity is arc-shaped, and the diameter of the arc is larger than the first distance.

Furthermore, a connecting hole is formed in the side face, close to the supporting piece, of the support, and a limiting groove opposite to the connecting hole is formed in the supporting piece;

and the support is provided with a limiting pin which is matched with the connecting hole and clamped in the limiting groove.

Furthermore, the support is provided with a cover plate covering the inner cavity.

Furthermore, the elastic part is a pressure spring, and the pressure spring is arranged at the bottom of the support part.

The use process of the movable supporting structure specifically comprises the following steps: placing a heavy object on a support member, wherein the support member moves downwards under the action of the heavy object; the driving device then drives the lever to rotate, so that the end of the lever is clamped on the side surface of the supporting piece, and the supporting piece is stably kept at a height, and finally the supporting piece is stably kept at a height.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a movable support structure makes the hookup location of drive arrangement and lever be greater than to the distance of pivot according to lever principle locking complex position is to the distance of pivot, even the length of lever power arm is greater than the length of resistance arm, this drive power that has enlargied drive arrangement to make the lever to support piece's effort grow, finally can maintain support piece on a certain height more stably.

Drawings

Fig. 1 is a perspective view of the movable support structure of the present invention;

FIG. 2 is an exploded perspective view of the movable support structure;

FIG. 3 is a front view of the mobile support structure;

FIG. 4 isbase:Sub>A cross-sectional view of section A-A of FIG. 3;

FIG. 5 is a perspective view of the support member, the drive member and the lever;

a support 1; an inner cavity 11; a first cavity 111; a second cavity 112; a through hole 12; a rotating shaft 13; a connecting hole 14; a support 2; a limit groove 21; an elastic member 3; a lever 4; a resistance arm 41; a power arm 42; a movable groove 421; a bolt 422; a stopper piece 423; a drive device 5; and a cover plate 6.

Detailed Description

In the description of the present invention, it is to be understood that the terms "inside", "outside", 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 description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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.

For the sake of description, the orientation of the following embodiments is referred to with reference to the direction in fig. 4, the left-right direction in fig. 4 is "left" and "right" of the support structure, the up-down direction in fig. 4 is "front" and "back" of the support structure, the outward direction perpendicular to fig. 4 is "up" of the support structure, and the reverse direction is "down".

For a clearer explanation, the movable supporting structure of the present invention is a top cylinder, as an example. The technical solution of the present invention will be further explained with reference to fig. 1-5.

A movable supporting structure with a force-multiplying locking function is disclosed, and comprises a support 1, a supporting piece 2, an elastic piece 3, a lever 4 and a driving device 5, as shown in figures 1-5. Wherein, the support 1 is in a cuboid shape and is provided with an inner cavity 11 which penetrates through the left side and the right side. The top surface of the support 1 is provided with a through hole 12 communicated to the inner cavity 11; and a rotating shaft 13 is arranged at the position, close to the through hole 12, of the inner cavity 11, and the rotating shaft 13 is arranged up and down along the vertical direction. The supporting member 2 is disposed in the through hole 12 and slidably connected thereto so that the supporting member 2 can slide up and down in the through hole 12, and after assembly, the bottom of the supporting member 2 is located in the inner cavity 11, and the top of the supporting member 2 extends out of the through hole 12 for cooperating with a weight, and when the weight presses down the supporting member 2, the supporting member 2 moves downward, it is understood that the shape of the top of the supporting member 2 can be set according to the shape of the weight cooperating therewith, and is not limited in particular. An elastic piece 3 for driving the support piece 2 to move upwards is arranged below the support piece 2, and when the weight is removed in use, the elastic piece 3 drives the support piece 2 to move upwards to return to the initial position. Preferably, the elastic member 3 is a compression spring which is constantly in a compressed state so that the support member 2 has a tendency to move on-line, thereby driving the support member 2 upwards after the weight is removed. The lever 4 is hinged to the pivot 13 and the lever 4 can pivot the end of the resistance arm 41 to the side that presses against the support 2, thereby locking the support 2 when the support 2 is pressed to a certain height, so that the support 2 remains at this height. The driving device 5 is a cylinder, and a piston rod of the cylinder is connected with the end part of the power arm 42 of the lever 4, so that the lever 4 can be driven to rotate, and the locking or unlocking with the support piece 2 is realized. The length of the power arm 42 of the support 2 of the lever 4 is greater than the length of the resistance arm 41, so that the pressure of the lever 4 on the support 2 is increased, the effect of doubling the force is achieved, and finally the support 2 can be stably maintained at a certain height. When the movable support member 2 is used as a top cylinder, for example, in the process of processing a product, the movable support structure (top cylinder) is placed in the middle of a workbench (such as a clamping jig, a machine tool workbench and the like), when the product is placed on the workbench, the product presses down the support member 2, the support member 2 moves downwards to a certain height, then a piston rod of the cylinder moves rightwards to enable the lever 4 to rotate anticlockwise, so that the end part of the resistance arm 41 of the lever 4 presses the support member 2, the support member 2 is kept at the height, and finally the product can be stably supported at the height. When the processed product is removed, the piston rod of the air cylinder moves leftwards, the lever 4 rotates clockwise, the end part of the resistance arm 41 of the lever 4 is far away from the support member 2, and the support member 2 moves upwards under the action of the pressure spring to restore to the initial height.

As shown in fig. 1-5, a movable groove 421 is provided on an end of the power arm 42 of the lever 4, and a piston rod of the air cylinder is movably connected to the movable groove 421 through a bolt 422, that is, the movable groove 421 has a certain movable space, and a screw of the bolt 422 can move in the movable groove 421. As can be seen from the figure, the head of the bolt 422 is located at the left side notch of the movable groove 421, the head is larger than the notch of the movable groove 421, the right side notch of the movable groove 421 (i.e. the side of the lever 4 close to the cylinder) is provided with a limiting piece 423, and the limiting piece 423 is screwed with the bolt 422 and is stably arranged at the right side notch of the movable groove 421. Above-mentioned structure is through bolt 422 head and spacing piece 423, and when the piston rod of cylinder moved left, spacing piece 423 drive lever 4 clockwise rotation, and when the piston rod of cylinder moved right, bolt 422's head drive lever 4 anticlockwise rotation, at lever 4 pivoted in-process, thereby the piston rod that can avoid the cylinder is died with lever 4 by the card in activity groove 421 rotation of bolt 422's screw rod. The transmission structure of the cylinder and the lever 4 needs fewer parts, has a simple structure, is convenient to produce and assemble and reduces the production cost.

As shown in fig. 1 to 5, the inner cavity 11 of the support 1 comprises a first cavity 111 and a second cavity 112 which are communicated; the locking and matching position is positioned in the first cavity 111, and the connecting position of the driving device 5 and the lever 4 is positioned in the second cavity 112; the rotating shaft 13 is disposed in the first cavity 111. The top surface and the bottom surface of the first cavity 111 are both planes, and the distance between the top surface and the bottom surface is a first distance. The top surface and the bottom surface of the lever 4 are both planes, the top surface and the bottom surface are in rotating supporting fit with the first cavity 111, and the first distance is matched with the height of the lever 4. The first cavity 111 and the support 2 are in plane contact fit, and when the lever 4 rotates, the lever 4 and the first cavity 111 are in plane support fit, so that the stability of the rotation of the lever 4 is improved. In addition, the first distance is adapted to the height of the lever 4, which prevents the lever 4 from wobbling when it is rotated. As another modification, the cross-sectional shape of the second cavity 112 is a circular arc, and the diameter of the circular arc is greater than the first distance. The cross section is arc-shaped, so that the cross section is matched with the piston rod of the cylinder, and the piston rod of the cylinder can extend into the second cavity 112 during assembly, so that the space of the whole structure is saved.

As shown in fig. 1-5, a connecting hole 14 is formed in a side surface of the support 1 close to the support 2, and a limiting groove 21 opposite to the connecting hole 14 is formed in the support 2; the support 1 is provided with a limit pin which is matched with the connecting hole 14 and clamped in the limit groove 21. The movement of the support member 2 within the height range of the limit groove 21 can be ensured by providing the limit pin and the limit groove 21.

As shown in fig. 1-5, the left and right sides of the support 1 are both provided with cover plates 6 covering the openings of the inner cavities 11. The cover plate 6 is arranged to place cutting fluid into the inner cavity 11, and meanwhile, the support 1 can have a good appearance.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A movable support structure with a force-multiplying locking function, comprising:

the support is provided with an inner cavity, the top surface of the support is provided with a through hole communicated to the inner cavity, and the inner cavity is provided with a rotating shaft which is vertically arranged;

the elastic piece is used for driving the supporting piece to move upwards;

the lever is hinged to the rotating shaft, the length of a power arm of the lever is larger than that of the resistance arm, and the end portion of the power arm is connected with the driving device and used for driving the power arm to rotate so that the end portion of the resistance arm abuts against the side face of the supporting piece and further enables the supporting piece to be matched with the end portion of the resistance arm in a locking mode.

2. The mobile support structure of claim 1, wherein: the end part of the power arm is provided with a movable groove, and the driving device is movably connected in the movable groove.

3. The mobile support structure of claim 2, wherein: the driving device is movably connected in the movable groove through a bolt, a limiting piece is arranged on one side, close to the cylinder, of the lever, and the limiting piece is in threaded connection with the bolt.

4. A mobile support structure according to any of claims 1 to 3, wherein: the driving device is an air cylinder.

5. The mobile support structure of claim 1, wherein: the inner cavity comprises a first cavity and a second cavity which are communicated; the locking matching position is positioned in the first cavity, and the connecting position of the driving device and the lever is positioned in the second cavity; the rotating shaft is arranged in the first cavity;

6. The mobile support structure of claim 5, wherein: the cross section of the second cavity is arc-shaped, and the diameter of the arc is larger than the first distance.

7. The mobile support structure of claim 1, wherein: the side surface of the support close to the support is provided with a connecting hole, and the support is provided with a limiting groove opposite to the connecting hole;

8. The mobile support structure of claim 1, wherein: the support is provided with a cover plate covering the inner cavity.

9. The mobile support structure of claim 1, wherein: the elastic part is a pressure spring which is arranged at the bottom of the support part.