CN217050567U

CN217050567U - One-way fixed angle rotation reset mechanism

Info

Publication number: CN217050567U
Application number: CN202123270450.7U
Authority: CN
Inventors: 杨周; 孙江; 陈辉; 贾璐辉; 李伟
Original assignee: Guizhou Fenglei Aviation Ordnance Co Ltd
Current assignee: Guizhou Fenglei Aviation Ordnance Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-07-26
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a one-way fixed-angle rotary resetting mechanism, which comprises an installation bottom plate, wherein a pull rod is hinged with one end of a rotary pull rod, the other end of the rotary pull rod is hinged with one end of a rotary connecting rod, the other end of the rotary connecting rod can move along a moving arc groove on the installation bottom plate, and a compression spring which can reset the pull rod is arranged on the pull rod; two sides of the second rotating connecting rod are connected with return springs, and the tail ends of the return springs are fixed on the mounting bottom plate. The mechanism adopts a spring and a connecting rod to form a reciprocating motion mechanism, and can realize unidirectional clockwise fixed-angle swing of a rotary connecting rod II.

Description

One-way fixed angle rotation reset mechanism

Technical Field

The utility model relates to a reciprocating motion technical field specifically is an one-way angle of deciding rotation canceling release mechanical system.

Background

Often need use to come and go canceling release mechanical system in order to pick up or goods handling in engineering application, it can effectual promotion mechanical system's overall efficiency to return to the mechanism, promote company's benefit, and reduce cost, but at present the internal most reciprocating motion mechanism of present is mostly slider-crank mechanism, or plane link mechanism, along with the development needs of market technique, the connecting rod still needs it to reset by oneself after the dead axle rotates under the exogenic action, and the connecting rod can realize the reversal in a certain angle, but can't drive other part when the opposite direction and rotate, with regard to present reciprocating mechanism, lack the research and the realization to this type of technique, therefore the utility model relates to an one-way rotatory canceling release mechanical system of definite angle can effectively satisfy this demand.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the technical problem, the utility model provides an one-way constant angle rotation canceling release mechanical system meets the department back with the rotating connecting rod in the constant distance moving object constant motion process, thereby promotes the round trip movement that the connecting rod moved the moving object, and this project organization is ingenious, and easy operation can effectively realize the reciprocating motion of motion.

The technical scheme of the utility model:

a unidirectional fixed-angle rotation reset mechanism comprises an installation bottom plate, a pull rod is hinged with one end of a rotation connecting rod, the other end of the rotation connecting rod can move along a movement arc groove on the installation bottom plate, and a compression spring capable of enabling the pull rod to reset is arranged on the pull rod; two sides of the second rotating connecting rod are connected with return springs, and the tail ends of the return springs are fixed on the mounting bottom plate.

Preferably, the device also comprises a guide groove shell fixed on the installation bottom plate, one end of the pull rod, which is far away from the rotating connecting rod, is connected with a moving object, and two ends of the compression spring are respectively limited by the moving object and the guide groove shell.

Preferably, the first rotating connecting rod and the second rotating connecting rod are hinged through a hexagonal operation positioning pin, two convex keys with a certain distance in the axial direction are arranged on the peripheral surface of a cylindrical body of the hexagonal operation positioning pin, one of the convex keys is matched with the mounting hole in the second rotating connecting rod, and the other convex key can rotate in a groove in the first rotating connecting rod.

Preferably, the installation bottom plate is provided with a guide groove, and the moving object can move along the guide groove.

Preferably, the two return springs are symmetrically arranged on two sides of the rotating connecting rod.

Preferably, a small fixed cover plate is arranged on the second rotating connecting rod to axially limit the hexagonal operation positioning pin.

Preferably, the two convex keys on the hexagonal operation positioning pin are circumferentially spaced by 180 degrees.

Preferably, the pull rod is horizontally arranged in the initial state, and the first rotating connecting rod and the second rotating pull rod are static in the vertical direction.

Preferably, the two ends of the rotating connecting rod are connected with pins, the pins are inserted into the moving arc grooves and can slide in the moving arc grooves, and the moving arc grooves are arc-shaped.

Preferably, when the return spring on one side is stretched to the limit, the included angle between the second rotating connecting rod and the vertical direction is 45 degrees.

The utility model discloses main advantage is:

1. the reciprocating motion of the moving object in the guide groove shell can be realized along with the continuous motion of the moving object at a fixed distance;

2. the one-way clockwise fixed-angle swing of the second rotary connecting rod can be realized;

3. the second rotary connecting rod can automatically approach to the central balance position to be stable after swinging;

4. when the second rotary connecting rod swings anticlockwise, no twisting force is applied to the first rotary connecting rod;

5. the first rotating connecting rod can automatically approach to the initial balance position under the action of the compression spring.

Drawings

Fig. 1 and fig. 2 are schematic structural diagrams of an unidirectional fixed-angle rotation reset mechanism of the present invention.

Fig. 3 is a schematic view of a moving arc groove structure.

Fig. 4 and 5 are schematic diagrams of the clockwise swinging state and the counterclockwise rotating state of the unidirectional fixed-angle rotation resetting mechanism according to the present invention.

Fig. 6 is a schematic view of the guide groove housing structure.

FIG. 7 is a schematic view of a hexagonal operation positioning pin.

FIG. 8 is a schematic view of a rotary link.

Fig. 9 is a schematic view of a small cover structure.

FIG. 10 is a schematic view of the second rotary link.

In the figure: the device comprises a first rotary connecting rod 1, a second rotary connecting rod 2, a hexagonal operation positioning pin 3, a small cover plate 4, a return spring 5, a return spring 6, a motion arc groove 7, a guide groove shell 8, a pull rod 9, a compression spring 10, a motion object 11 and a mounting base plate 12.

Detailed Description

The present invention will be further explained with reference to the drawings and the working principle thereof.

A one-way fixed-angle rotation resetting mechanism comprises a first rotation connecting rod 1, a second rotation connecting rod 2, a hexagonal operation positioning pin 3, a small cover plate 4, a resetting spring 5, a resetting spring 6, a motion arc groove 7, a guide groove shell 8, a pull rod 9, a compression spring 10, a moving object 11 and a mounting base plate 12, and is shown in figure 1.

The pull rod 9 is hinged to one end of the first rotating connecting rod 1, the other end of the first rotating connecting rod 1 is hinged to one end of the second rotating connecting rod 2, a pin connected to the other end of the second rotating connecting rod 2 can be inserted into the arc-shaped moving arc groove 7 in the installation bottom plate 12 and moves in the arc-shaped moving arc groove 7, and the arc-shaped moving groove 7 is actually a section of arc hole machined in the installation bottom plate 12. A compression spring 10 which can reset the moving object 11 is arranged on the pull rod 9; two sides of the second rotating connecting rod 2 are symmetrically connected with a return spring 5 and a return spring 6, and the tail ends of the return spring 5 and the return spring 6 are respectively fixed on the installation bottom plate 12. The guide groove shell 8 is fixed on the installation bottom plate 12, one end, far away from the first rotating connecting rod 1, of the pull rod 9 penetrates through a hole in the guide groove shell 8 and is connected with a moving object 11, a guide groove is machined in the guide groove shell 8, the structural schematic diagram of the guide groove is shown in fig. 3, the moving object 11 can move along the guide groove, two ends of the compression spring 10 are limited by the moving object 11 and the guide groove shell 8 respectively, and when the pull rod 9 is pulled, the moving object 11 compresses the spring 10.

The first rotating connecting rod 1 and the second rotating connecting rod 2 are hinged through a hexagonal operation positioning pin 3, two positioning keys are arranged on the peripheral surface of a cylindrical body of the hexagonal operation positioning pin 3, one convex key is matched with a mounting hole in the second rotating connecting rod 2, the other convex key can rotate in a groove in the first rotating connecting rod 1, and the structural schematic diagram of the hexagonal operation positioning pin 3 is shown in fig. 7.

A groove tangent to the axis of the bottom hole is machined in the left side of the bottom hole of the first rotating connecting rod 1, the depth of the groove is 4mm, and the structural schematic diagram of the groove is shown in fig. 8. A hexagonal socket wrench tool is inserted into the hexagonal operation positioning pin 3 to screw the hexagonal operation pin 3, and two convex keys on the hexagonal operation positioning pin 3 are circumferentially spaced by 180 degrees and have a certain distance in the axial direction. In order to prevent the hexagonal operation positioning pin 3 from axially disengaging, a small cover plate 4 is fixed on the second rotating connecting rod 2 to axially limit the hexagonal operation positioning pin 3, and a schematic structural diagram of the small cover plate 4 is shown in fig. 9. In this embodiment, the first rotating connecting rod 1 and the second rotating connecting rod 2 are both hollow structures.

In this embodiment, the pull rod 9 is horizontally arranged, and the first rotating connecting rod 1 and the second rotating pull rod 2 are stationary in the vertical direction in the initial state.

The device is also provided with a fixed-distance moving object 13 capable of reciprocating, the fixed-distance moving object 13 can continuously contact with the lower end of the second rotating pull rod 2 and push the second rotating connecting rod 2 to rotate clockwise, the second rotating connecting rod 2 drives the hexagonal operation positioning pin 3 to rotate clockwise, the upward convex key of the hexagonal operation positioning pin 3 further drives the first rotating connecting rod 1 to rotate clockwise, after the object to be fixed-distance is separated from the second rotating connecting rod 2, the second rotating connecting rod 2 rotates anticlockwise under the action of the reset spring 5 and the reset spring 6 and returns to a balance position, in the process of anticlockwise rotation resetting of the second rotating connecting rod 2, the second rotating connecting rod 2 drives the hexagonal operation positioning pin 3 to rotate anticlockwise, at the moment, the upward convex key of the hexagonal operation positioning pin 3 rotates anticlockwise and enters a groove with the depth of 4mm of the first rotating connecting rod 1, and therefore the first rotating connecting rod 1 cannot be driven to rotate anticlockwise when the second rotating connecting rod 2 rotates anticlockwise, at this time, the first rotating link 1 is reset to the flat transverse position under the action of the compression spring 10. In this embodiment, when the second fixed-distance moving object 13 contacts the second rotating pull rod 2, the second rotating pull rod 2 can rotate clockwise.

The working process comprises the following steps: when the fixed-distance moving object in the figure 1 moves towards the direction close to the rotating pull rod II 2, the fixed-distance moving object 13 is in contact with the lower end of the rotating connecting rod II 2, the rotating connecting rod II 2 is stressed to drive the hexagonal operation positioning pin 3 to rotate, so that the hexagonal operation positioning pin 3 drives the rotating connecting rod I1 to rotate, and further pulls the pull rod 9 to move rightwards, because the 8-guide groove shell is fixed on the installation bottom plate 12, when the pull rod 9 is stressed to move rightwards, the moving object 11 extrudes the compression spring 10, when the top end of the fixed-distance moving object 13 moves leftwards to push the rotating connecting rod II 2 to rotate clockwise for 45 degrees, at the moment, the return spring 5 is extruded, the return spring 6 is extruded, after the fixed-distance moving object 13 is separated from the rotating connecting rod II 2, the rotating connecting rod II 2 resets and swings towards the central position, and in the resetting swinging process, because of the hexagonal operation positioning pin 3, the rotating connecting rod II 2 drives the hexagonal operation positioning pin to synchronously move anticlockwise to return to the central position to return to the anticlockwise in the anticlockwise process In the position, the second rotating link 2 and the hexagonal operating pin 3 do not apply any rotational force to the first rotating link 1 during counterclockwise rotation, and the second rotating link 2 can return to swing at a constant angle during counterclockwise rotation, the return swing angle being in the range of 0 to 90 °. After the first rotating connecting rod 1 is stressed to swing clockwise, the first rotating connecting rod is automatically reset by the compression spring 10, preparation is made for the next swinging, and swinging and resetting pictures are shown in figures 4 and 5.

The above embodiments are only for illustrating the technical conception and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, so as not to limit the protection scope of the present invention, and all the equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention. The technology, shape and construction parts which are not described in detail in the present invention are known technology.

Claims

1. A unidirectional fixed-angle rotation reset mechanism is characterized by comprising an installation base plate (12), a pull rod (9) is hinged with one end of a first rotating connecting rod (1), the other end of the first rotating connecting rod (1) is hinged with one end of a second rotating connecting rod (2), the other end of the second rotating connecting rod (2) can move along a movement arc groove (7) in the installation base plate (12), and a compression spring (10) capable of enabling the pull rod (9) to reset is arranged on the pull rod (9); two sides of the second rotating connecting rod (2) are connected with return springs (5), and the tail ends of the return springs (5) are fixed on the mounting bottom plate (12).

2. The unidirectional fixed-angle rotation resetting mechanism as claimed in claim 1, further comprising a guide groove shell (8) fixed on the mounting base plate (12), wherein one end of the pull rod (9) far away from the first rotary connecting rod (1) is connected with the moving object (11), and two ends of the compression spring (10) are respectively limited by the moving object (11) and the guide groove shell (8).

3. A unidirectional fixed-angle rotation return mechanism as claimed in claim 1, wherein the first rotary connecting rod (1) and the second rotary connecting rod (2) are hinged through a hexagonal operation positioning pin (3), the outer peripheral surface of the cylindrical body of the hexagonal operation positioning pin (3) is provided with two convex keys with a certain distance in the axial direction, one of the convex keys is matched with the mounting hole on the second rotary connecting rod (2), and the other convex key can rotate in the groove on the first rotary connecting rod (1).

4. A unidirectional fixed angle rotation reset mechanism as claimed in claim 2, characterized in that the mounting base plate (12) is provided with guide slots along which the moving object (11) can move.

5. A unidirectional fixed angle rotation return mechanism as claimed in claim 1, characterized in that two return springs (5) are symmetrically arranged on both sides of the second rotation link (2).

6. A unidirectional fixed angle rotation resetting mechanism as claimed in claim 3, characterized in that a small cover plate (4) is fixed on the second rotary connecting rod (2) to axially limit the hexagonal operation positioning pin (3).

7. A unidirectional fixed angle rotary reset mechanism as claimed in claim 3 wherein the two keys on the hexagonal operating detent pin (3) are circumferentially spaced 180 °.

8. A unidirectional fixed angle rotation resetting mechanism as claimed in claim 1, characterized in that the pull rod (9) is horizontally arranged in the initial state, and the first rotary connecting rod (1) and the second rotary connecting rod (2) are stationary in the vertical direction.

9. A unidirectional fixed angle rotation resetting mechanism as claimed in claim 1, characterized in that the end of the second rotating connecting rod (2) is connected with a pin, the pin is inserted into the moving arc groove (7) and can slide in the moving arc groove (7), and the moving arc groove (7) is arc-shaped.

10. A unidirectional fixed angle rotation return mechanism as claimed in claim 8, characterized in that the angle between the second (2) rotation link and the vertical is 45 ° when the return spring (5) on one side is extended to the limit.