Length-adjustable pneumatic rod

Abstract

The utility model relates to the field of pneumatic rods, in particular to a length-adjustable 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, the cylinder body is connected into an extension pipe in a sliding fit mode, a locking mechanism used for fixing the cylinder body and the extension pipe together is installed on the cylinder body, the locking mechanism penetrates through a strip hole in the extension pipe, a buffering mechanism is installed in the extension pipe, and a dirt removing mechanism is installed at the end of the extension pipe. According to the pneumatic rod, the cylinder body slides along the extension pipe to adjust the overall length of the pneumatic rod, and the pneumatic rod is locked at the current length through the locking mechanism.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic rods, in particular to a pneumatic rod with adjustable length. 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, the existing pneumatic rod cannot adjust the length of the cylinder, so different lengths of cylinders need to be selected in different working environments. Utility Model Content

[0003] In order to overcome the deficiency that the existing pneumatic rod cannot adjust the length of the cylinder body, the utility model provides a length-adjustable pneumatic rod.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a length-adjustable pneumatic rod, comprising a cylinder body and a piston rod, one end of the piston rod is slidably connected in the cylinder body, the cylinder body is slidably connected in an extension tube, a locking mechanism for fixing the cylinder body and the extension tube together is installed on the cylinder body, the locking mechanism passes through a bar hole on the extension tube, a buffer mechanism is installed in the extension tube, and a cleaning mechanism is installed at the end of the extension tube.

[0005] According to another embodiment of the utility model, the locking mechanism further includes a screw rod and a locking nut, one end of the screw rod is fixed on the cylinder body, and the screw rod and the locking nut are threadedly connected together.

[0006] According to another embodiment of the utility model, the buffer mechanism further includes an elastic member and a cushion block, one end of the elastic member is connected to the bottom plate of the extension tube, and the other end of the elastic member is connected to the cushion block.

[0007] According to another embodiment of the utility model, a silicone layer is further fixed on the top of the pad.

[0008] According to another embodiment of the present invention, the elastic member is further comprised of a spring.

[0009] According to another embodiment of the utility model, the cleaning mechanism further comprises a ring and a friction portion, and the friction portion is fixed to the inner ring of the ring.

[0010] According to another embodiment of the present invention, the friction part is further comprised of a PVC bristle body.

[0011] According to another embodiment of the utility model, a wing is further fixed on the cylinder body, and a sliding groove for matching the wing is provided on the inner wall of the extension tube.

[0012] The beneficial effect of the utility model is that the utility model adjusts the overall length of the pneumatic rod by sliding the cylinder body along the extension tube, and locks the pneumatic rod at the current length through the locking mechanism. 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 dirt cleaning mechanism of the utility model;

[0016] In the figure, 1. cylinder body, 2. piston rod, 3. extension tube, 4. locking mechanism, 5. buffer mechanism, 6. cleaning mechanism, 7. wing, 41. screw, 42. locking nut, 51. elastic part, 52. spacer, 61. ring, 62. friction part. 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 dirt cleaning mechanism of the utility model.

[0018] As attached Figure 1 As shown, a length-adjustable 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. The cylinder body 1 is slidably connected in an extension tube 3. A locking mechanism 4 for fixing the cylinder body 1 and the extension tube 3 together is installed on the cylinder body 1. The locking mechanism 4 passes through the bar hole on the extension tube 3. A buffer mechanism 5 is installed in the extension tube 3. A cleaning mechanism 6 is installed at the end of the extension tube 3.

[0019] The locking mechanism 4 includes a screw rod 41 and a locking nut 42. One end of the screw rod 41 is fixed on the cylinder body 1. The screw rod 41 and the locking nut 42 are threadedly connected together.

[0020] The cylinder body 1 is moved along the extension tube 3, and after being moved into place, the locking nut 42 is tightened, so that the cylinder body 1 and the extension tube 3 can be fixed together. The extension tube 3 can become the extension part of the cylinder body 1 of the pneumatic rod.

[0021] The buffer mechanism 5 includes an elastic member 51 and a cushion block 52 . One end of the elastic member 51 is connected to the bottom plate of the extension tube 3 , and the other end of the elastic member 51 is connected to the cushion block 52 .

[0022] When the cylinder body 1 slides down into the extension tube 3 due to gravity, the buffer mechanism 5 provides buffer protection to prevent the cylinder body 1 from making hard contact with the extension tube 3 .

[0023] A silicone layer is fixed on the top of the pad 52 .

[0024] The elastic member 51 is a spring.

[0025] As attached Figure 2 As shown, the cleaning mechanism 6 includes a ring 61 and a friction portion 62 , and the friction portion 62 is fixed to the inner ring of the ring 61 .

[0026] The friction part 62 is made of PVC wool.

[0027] When the piston rod 2 moves along the cylinder body 1 , the friction portion 62 will wipe off the dirt on the cylinder body 1 .

[0028] A wing 7 is fixed on the cylinder body 1 , and a sliding groove for matching the wing 7 is provided on the inner wall of the extension tube 3 .

Claims

1. A length-adjustable 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 wherein: The cylinder body (1) is slidably connected in the extension tube (3); a locking mechanism (4) for fixing the cylinder body (1) and the extension tube (3) together is installed on the cylinder body (1); the locking mechanism (4) passes through the bar hole on the extension tube (3); a buffer mechanism (5) is installed in the extension tube (3); and a cleaning mechanism (6) is installed at the end of the extension tube (3).

2. The length-adjustable pneumatic rod according to claim 1, characterized in that: The locking mechanism (4) comprises a screw rod (41) and a locking nut (42); one end of the screw rod (41) is fixed on the cylinder body (1); and the screw rod (41) and the locking nut (42) are threadedly connected together.

3. The length-adjustable pneumatic rod according to claim 1 is characterized in that: The buffer mechanism (5) comprises an elastic member (51) and a cushion block (52); one end of the elastic member (51) is connected to the bottom plate of the extension tube (3), and the other end of the elastic member (51) is connected to the cushion block (52).

4. The length-adjustable pneumatic rod according to claim 3 is characterized in that: A silica gel layer is fixed on the top of the cushion block (52).

5. The length-adjustable pneumatic rod according to claim 3 is characterized in that: The elastic member (51) is a spring.

6. The length-adjustable pneumatic rod according to claim 1, characterized in that: The dirt cleaning mechanism (6) comprises a ring (61) and a friction portion (62), and the friction portion (62) is fixed to the inner ring of the ring (61).

7. The length-adjustable pneumatic rod according to claim 6, characterized in that: The friction part (62) is a PVC bristle body.

8. The length-adjustable pneumatic rod according to claim 1, characterized in that: A wing (7) is fixed on the cylinder body (1), and a sliding groove for matching the wing (7) is provided on the inner wall of the extension tube (3).

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