Piston rod locking type pneumatic rod

Abstract

The utility model relates to the field of pneumatic rods, in particular to a piston rod locking type pneumatic rod. The pneumatic rod comprises a cylinder body and a piston rod, one end of the piston rod is connected into the cylinder body in a sliding fit mode, a rack is arranged on a rod body of the piston rod, a clamping piece used for clamping the rack is connected to the cylinder body in a sliding mode, a pushing mechanism used for pushing the clamping piece is installed on the cylinder body, and an elastic piece is connected between the clamping piece and the cylinder body. According to the utility model, the pushing mechanism is used for driving the clamp to approach and move, and the clamping piece is used for clamping the piston rod, so that the piston rod can be locked at the current position.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic rods, in particular to a piston rod locking type pneumatic rod. Background Art

[0002] The working principle of the pneumatic rod is mainly based on the physical properties of compressed air. The expansion and contraction of the gas drives the movement of the piston, thereby realizing the control and regulation of the mechanical system. However, after the piston rod of the existing pneumatic rod is extended, the piston rod cannot be fixed in the current position. If the pneumatic rod fails, the piston rod will not be able to maintain the current position. Utility Model Content

[0003] In order to overcome the defect that the existing pneumatic rod cannot lock the position, the utility model provides a piston rod locking type pneumatic rod.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a piston rod locking pneumatic rod, comprising a cylinder body and a piston rod, one end of the piston rod is slidably connected in the cylinder body, a rack is provided on the rod body of the piston rod, a clamping piece for clamping the rack is slidably connected on the cylinder body, a pushing mechanism for pushing the clamping piece is installed on the cylinder body, and an elastic piece is connected between the clamping piece and the cylinder body.

[0005] According to another embodiment of the utility model, a base is further fixed to the end of the cylinder body, and the piston rod passes through a through hole on the base.

[0006] According to another embodiment of the utility model, the clamping member further includes a base block, a clamping tooth, and a connecting rod. The front end of the base block is provided with a clamping tooth for clamping the rack, and the rear end of the base block is provided with a connecting rod. The base block is slidably connected in the base.

[0007] According to another embodiment of the utility model, the pushing mechanism further includes a swing rod and a bracket, the top end of the swing rod is movably connected to the connecting rod, the rod body of the swing rod is hinged to the bracket, and the bracket is fixed to the base.

[0008] According to another embodiment of the utility model, a curved pressing plate is further provided at the tail end of the swing rod.

[0009] According to another embodiment of the utility model, a magnet for magnetically attracting the cylinder body is further fixed on the arc-shaped pressing plate.

[0010] According to another embodiment of the present invention, the elastic member is further comprised of a spring.

[0011] According to another embodiment of the utility model, a shaft rod is further provided at the top end of the swing rod, and the shaft rod passes through the waist-shaped hole on the connecting rod.

[0012] The beneficial effect of the utility model is that the utility model drives the card to move closer through the pushing mechanism and clamps the piston rod through the clamping piece, so that the piston rod can be locked in the current position. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the clamping member and the pushing mechanism of the utility model;

[0016] In the figure, 1. cylinder body, 2. piston rod, 3. rack, 4. clamping part, 5. pushing mechanism, 6. elastic part, 7. base, 41. base block, 42. clamping teeth, 43. connecting rod, 51. rocker arm, 52. bracket, 53. arc-shaped pressing plate, 54. magnet. DETAILED DESCRIPTION

[0017] Figure 1 It is a structural schematic diagram of the utility model; Figure 2 It is a structural schematic diagram of the clamping member and the pushing mechanism of the utility model.

[0018] Combined with Figure 1 and attached Figure 2 As shown, a piston rod locking pneumatic rod comprises a cylinder body 1 and a piston rod 2. One end of the piston rod 2 is slidably connected in the cylinder body 1. A rack 3 is provided on the rod body of the piston rod 2. A clamping piece 4 for clamping the rack 3 is slidably connected to the cylinder body 1. A pushing mechanism 5 for pushing the clamping piece 4 is installed on the cylinder body 1. An elastic piece 6 is connected between the clamping piece 4 and the cylinder body 1.

[0019] A base 7 is fixed to the end of the cylinder body 1 , and the piston rod 2 passes through a through hole on the base 7 .

[0020] The clamping member 4 includes a base block 41 , a clamping tooth 42 , and a connecting rod 43 . The base block 41 is provided with a clamping tooth 42 for clamping the rack 3 at the front end, and a connecting rod 43 is provided at the rear end of the base block 41 . The base block is slidably connected in the base 7 .

[0021] The pushing mechanism 5 includes a swing rod 51 and a bracket 52 . The top end of the swing rod 51 is movably connected to the connecting rod 43 . The rod body of the swing rod 51 is hinged to the bracket 52 . The bracket 52 is fixed to the base 7 .

[0022] An arc-shaped pressing plate 53 is disposed at the tail end of the swing rod 51 .

[0023] A magnet 54 for magnetically attracting the cylinder body 1 is fixed on the arc-shaped pressing plate 53 .

[0024] The elastic member 6 is a spring.

[0025] A shaft is disposed at the top of the swing rod 51 , and the shaft passes through a waist-shaped hole on the connecting rod 43 .

[0026] The working method of the present application is as follows: when the piston rod 2 is about to extend out of the cylinder body 1, the two arc-shaped pressing plates 53 are pressed, so that the two swing rods 51 swing outward, and the magnets 54 on the arc-shaped pressing plates 53 magnetically attract the metal cylinder body 1. In this way, the piston rod 2 can freely extend out of the cylinder body 1. When the piston rod 2 moves into position, the arc-shaped pressing plates 53 are pushed away from the cylinder body 1. At this time, driven by the rebound of the elastic member 6, the base block 41 moves toward the piston rod 2 until the latching teeth 42 latch the rack 3 on the piston rod 2, so that the piston rod 2 can be locked in the current position.

Claims

1. A piston rod locking pneumatic rod, comprising a cylinder body (1) and a piston rod (2), wherein one end of the piston rod (2) is slidably connected in the cylinder body (1), and is characterized in that: A rack (3) is provided on the rod body of the piston rod (2); a clamping piece (4) for clamping the rack (3) is slidably connected to the cylinder body (1); a pushing mechanism (5) for pushing the clamping piece (4) is installed on the cylinder body (1); and an elastic piece (6) is connected between the clamping piece (4) and the cylinder body (1).

2. The piston rod locking pneumatic rod according to claim 1, characterized in that: A base (7) is fixed to the end of the cylinder body (1), and the piston rod (2) passes through a through hole on the base (7).

3. The piston rod locking pneumatic rod according to claim 2, characterized in that: The clamping member (4) comprises a base block (41), a clamping tooth (42), and a connecting rod (43); the front end of the base block (41) is provided with a clamping tooth (42) for clamping the rack (3); the rear end of the base block (41) is provided with a connecting rod (43); and the base block is slidably connected in the base (7).

4. The piston rod locking pneumatic rod according to claim 3, characterized in that: The pushing mechanism (5) comprises a swing rod (51) and a bracket (52); the top end of the swing rod (51) is movably connected to the connecting rod (43); the body of the swing rod (51) is hinged to the bracket (52); and the bracket (52) is fixed to the base (7).

5. The piston rod locking pneumatic rod according to claim 4, characterized in that: An arc-shaped pressing plate (53) is provided at the tail end of the swing rod (51).

6. The piston rod locking pneumatic rod according to claim 5, characterized in that: A magnet (54) for magnetically attracting the cylinder body (1) is fixed on the arc-shaped pressing plate (53).

7. The piston rod locking pneumatic rod according to claim 1, characterized in that: The elastic member (6) is a spring.

8. The piston rod locking pneumatic rod according to claim 4, characterized in that: The top end of the swing rod (51) is provided with a shaft rod, and the shaft rod passes through the waist-shaped hole on the connecting rod (43).

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