Shield follow-up type pneumatic rod

Abstract

The utility model relates to the field of pneumatic rod, especially is shield follow -up type pneumatic rod. The pneumatic rod includes cylinder body, piston rod, piston rod and cylinder body slide together, the piston rod tip is fixed in the shield top, the cylinder body is placed in the shield, and the gear transmission mechanism is installed on the cylinder body and piston rod, and the tail portion of shield is equipped with locking mechanism. The utility model provides protection for the piston rod that extends outside the cylinder body through the shield, and the stability of the force of the piston rod movement is kept through the gear transmission mechanism cooperation shield. The application improves the service life of pneumatic rod.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic rods, and in particular to a protective cover-type pneumatic rod. Background Technology

[0002] A pneumatic rod is an actuator that uses compressed air to drive a piston, thereby producing linear motion. Its working principle involves compressed air passing through a cylinder and driving a rod body. Therefore, pneumatic rods are characterized by high speed and high torque, making them suitable for applications requiring rapid response and high torque, such as automated production lines in industries like stamping and injection molding. However, existing pneumatic rods lack external support and protection for the piston rod, making them prone to uneven stress and reduced lifespan. Utility Model Content

[0003] In order to overcome the shortcomings of existing pneumatic rods where the piston rod lacks support and protection, this utility model provides a protective cover-type pneumatic rod.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a protective cover follow-up pneumatic rod, including a cylinder body and a piston rod, the piston rod and the cylinder body are slidably connected together, the end of the piston rod is fixed to the top of the protective cover, the cylinder body is placed inside the protective cover, a gear transmission mechanism is installed on the cylinder body and the piston rod, and a locking mechanism is installed at the tail of the protective cover.

[0005] According to another embodiment of the present invention, the gear transmission mechanism further includes gears and racks, with several gears rotatably connected to the cover, the several gears being evenly distributed on the cover in a circular trajectory, and several parallel racks fixed on the cylinder body, the several gears meshing with the several racks respectively.

[0006] According to another embodiment of the present invention, the locking mechanism further includes a bolt and a collet, the bolt having a collet at its top for locking the rack, and the cover having a threaded hole for threaded connection of the bolt.

[0007] According to another embodiment of the present invention, the protective cover further includes a top plate, a ring body, and connecting rods, with several connecting rods connecting the top plate and the ring body, and the top plate fixed to the piston rod end.

[0008] According to another embodiment of the present invention, the top plate is further provided with a plurality of bolt holes.

[0009] According to another embodiment of the present invention, a reinforcing rod is further fixed between adjacent connecting rods.

[0010] According to another embodiment of the present invention, it further includes several connecting rods evenly distributed on the ring body.

[0011] According to another embodiment of the present invention, the top plate is circular, and a reinforcing rib is provided between the top plate and the piston rod.

[0012] The beneficial effects of this utility model are that it provides protection for the piston rod extending out of the cylinder body through a protective cover, and maintains the stability of the piston rod's movement under force through a gear transmission mechanism in conjunction with the protective cover. This application improves the service life of the pneumatic rod. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] In the diagram: 1. Cylinder block, 2. Piston rod, 3. Protective cover, 4. Gear transmission mechanism, 5. Locking mechanism, 6. Reinforcing rib, 31. Top plate, 32. Ring body, 33. Connecting rod, 34. Reinforcing rod, 41. Gear, 42. Spur rack. Detailed Implementation

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] As attached Figure 1 As shown, a protective cover-type pneumatic rod includes a cylinder body 1 and a piston rod 2. The piston rod 2 is slidably connected to the cylinder body 1. The end of the piston rod 2 is fixed to the top of the protective cover 3. The cylinder body 1 is placed inside the protective cover 3. A gear transmission mechanism 4 is installed on the cylinder body 1 and the piston rod 2. A locking mechanism 5 is installed at the tail of the protective cover 3.

[0018] The gear transmission mechanism 4 includes gears 41 and racks 42. Several gears 41 are rotatably connected to the cover 3. The gears 41 are evenly distributed on the cover 3 in a circular trajectory. Several parallel racks 42 are fixed on the cylinder 1. The gears 41 mesh with the racks 42 respectively. The gears 41 can roll back and forth along the racks 42.

[0019] The locking mechanism 5 includes a bolt and a collet. The bolt has a collet at its tip for engaging the rack 42, and the cover 3 has a threaded hole for threaded connection of the bolt. Rotating the bolt allows it to move back and forth along the threaded hole. When locking the piston rod 2, the bolt moves toward the rack 42 until the collet engages between adjacent teeth of the rack 42, thus preventing the piston rod 2 from moving further.

[0020] The protective cover 3 includes a top plate 31, an ring 32, and connecting rods 33. Several connecting rods 33 connect the top plate 31 and the ring 32. The top plate 31 is fixed to the end of the piston rod 2. When the piston rod 2 extends out of the cylinder 1, the protective cover 3 can prevent foreign objects from impacting the piston rod 2.

[0021] Several bolt holes are distributed on the top plate 31. External mechanisms can be connected to the top plate 31 through bolt holes and bolts.

[0022] A reinforcing rod 34 is fixed between adjacent connecting rods 33. The reinforcing rod 34 can improve the structural strength of the protective cover 3.

[0023] Several connecting rods 33 are evenly distributed on the ring 32.

[0024] The top plate 31 is circular, and a reinforcing rib 6 is provided between the top plate 31 and the piston rod 2. The reinforcing rib 6 can improve the connection strength between the piston rod 2 and the protective cover 3.

[0025] The working principle of this application is as follows: when the piston rod 2 moves linearly along the cylinder body 1, it will drive the protective cover 3 to move synchronously, so that the part of the piston rod 2 extending out of the cylinder body 1 is always inside the protective cover 3, thereby avoiding damage from impacts from external objects. When the protective cover 3 moves, the gears 41 around it will roll along their respective spur racks 42, making the movement of the piston rod 2 more stable and the force more even, thereby extending its service life.

Claims

1. A protective cover-driven pneumatic rod, comprising a cylinder (1) and a piston rod (2), wherein the piston rod (2) is slidably connected to the cylinder (1), characterized in that, The piston rod (2) is fixed at the top of the cover (3), the cylinder (1) is placed inside the cover (3), and a gear transmission mechanism (4) is installed on the cylinder (1) and the piston rod (2). A locking mechanism (5) is installed at the tail of the cover (3). The locking mechanism (5) includes a bolt and a chuck. The top of the bolt is provided with a chuck for locking the rack (42), and the cover (3) is provided with a threaded hole for threaded connection bolts.

2. The protective cover follow-up pneumatic rod according to claim 1, characterized in that, The gear transmission mechanism (4) includes gears (41) and racks (42). Several gears (41) are rotatably connected to the cover (3). The gears (41) are evenly distributed on the cover (3) in a circular trajectory. Several parallel racks (42) are fixed on the cylinder (1). The gears (41) mesh with the racks (42) respectively.

3. The protective cover follow-up pneumatic rod according to claim 1, characterized in that, The protective cover (3) includes a top plate (31), a ring (32), and connecting rods (33). Several connecting rods (33) are connected between the top plate (31) and the ring (32). The top plate (31) is fixed to the top of the piston rod (2).

4. The protective cover follow-up pneumatic rod according to claim 3, characterized in that, Several bolt holes are distributed on the top plate (31).

5. The protective cover follow-up pneumatic rod according to claim 3, characterized in that, A reinforcing rod (34) is fixed between adjacent connecting rods (33).

6. The protective cover follow-up pneumatic rod according to claim 3, characterized in that, Several connecting rods (33) are evenly distributed on the ring (32).

7. The protective cover follow-up pneumatic rod according to claim 3, characterized in that, The top plate (31) is circular, and a reinforcing rib (6) is provided between the top plate (31) and the piston rod (2).

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