CN218818099U - A Pneumatic Piston Rod Conveniently Adjusting Stroke - Google Patents

Abstract

The utility model discloses a pneumatic piston rod for convenient stroke adjustment in the field of cylinder equipment, which comprises a main body, the outer wall in the middle of the main body is fixedly connected with an inner sealing ring, the outer wall of the main body located at the inner sealing ring is fixedly connected with a piston, and the main body is far away from the end of the inner sealing ring. The outer wall of the main body is provided with a first external thread, and the outer wall of the main body is located at the position of the first external thread to be threaded with a limit bolt. The position where the limit bolt matches the main body is provided with a first through hole, and the inner wall of the first through hole is provided with a second One internal thread, the outer wall of the limit bolt close to the end of the inner seal ring is provided with a second external thread, the main body is located between the limit bolt and the inner seal ring, and an adjustment stud is arranged, and the side wall of the end of the adjustment stud far away from the limit bolt is fixed A first buffer pad is connected. The device has a simple structure and is easy to operate, can effectively reduce the cost of manufacture, and at the same time facilitates adjusting the limit of the stroke of the piston rod, thereby increasing the sales volume of the product.

Description

A Pneumatic Piston Rod Conveniently Adjusting Stroke

technical field

The utility model relates to the field of cylinder equipment, in particular to a pneumatic piston rod for convenient stroke adjustment.

Background technique

The piston rod is a connecting part that supports the piston to do work. Most of it is used in the cylinder and cylinder motion executive parts. It is a moving part with frequent movements and high technical requirements. The piston components include: piston, piston ring, support ring, piston rod, etc. According to different structural forms, pistons can be divided into cylindrical pistons (length larger than diameter), disc pistons (length smaller than diameter), differential pistons, combined pistons and plunger pistons.

When using the pneumatic piston rod to work, the staff needs to start the cylinder to make the cylinder start to do work, and the compressed air is introduced into the inside of the cylinder to form a driving force for the piston rod, and then drive the piston rod to work, while the existing When the pneumatic piston rod needs to adjust the working stroke, it is basically divided into: after installing the stroke switch, controlling the solenoid valve to adjust the stroke; installing a magnetic ring in the cylinder, and installing a matching magnetic switch outside to control the solenoid valve, thereby controlling the stroke. And devices are only suitable for large-scale enterprises. Compared with the market, the audience that uses more is still small and medium-sized enterprises, and the cost of the existing pneumatic piston rod is too high, which makes it unattractive to small and medium-sized enterprises. , resulting in slow sales.

Utility model content

The purpose of this utility model is to provide a pneumatic piston rod that is convenient to adjust the stroke, so as to solve the problem that the above-mentioned existing pneumatic piston rod is too high in cost, which makes it unattractive to small and medium-sized enterprises, resulting in slow sales.

In order to achieve the above object, the utility model provides the following technical solutions:

A pneumatic piston rod for easy stroke adjustment, comprising a main body, the outer wall of the middle part of the main body is fixedly connected to the inner sealing ring, the outer wall of the main body located at the inner sealing ring is fixedly connected with a piston, and the outer wall of the main body away from the end of the inner sealing ring is set There is a first external thread, the outer wall of the main body is located at the position of the first external thread, and the limit bolt is threaded, and the position where the limit bolt matches the main body is penetrated with a first through hole, and the inner wall of the first through hole A first internal thread is provided, and the outer wall of one end of the limit bolt close to the inner sealing ring is provided with a second external thread, and the main body is provided with an adjusting stud between the limit bolt and the inner sealing ring, and the adjusting stud A first buffer pad is fixedly connected to the side wall at one end away from the limit bolt.

As a further solution of the present utility model: the inside of the adjustment stud matched with the limit bolt is provided with a second through hole, the inner wall of the second through hole is provided with a second internal thread, and the adjustment screw The column is threaded with the limit bolt, and the setting of the adjusting stud facilitates positional adjustment of the stroke of the piston rod, and the adjusting stud in the device can be replaced with an adjusting stud of a suitable size according to the situation.

As a further solution of the present utility model: the outer wall of the middle part of the main body is located on both sides of the inner sealing ring and is provided with first limiting grooves, and the inner walls of the two first limiting grooves are fixedly connected with second buffer pads, The arrangement of the second buffer pad facilitates the impact protection of the piston when the piston rod is working, thereby ensuring the service life of the piston.

As a further solution of the present utility model: the inside of the piston matching the position of the main body is provided with a third through hole, the middle part of the outer wall of the piston is provided with a second limit groove, and the outer wall of the piston is located at the second limit Both sides of the groove are provided with a third limiting groove, through the setting of the second limiting groove and the third limiting groove, it is convenient to provide position limitation and installation for the outer sealing ring and the guide ring.

As a further solution of the present invention: the inner wall of the second limiting groove is fixedly connected with an outer sealing ring, and the arrangement of the outer sealing ring facilitates sealing installation and arrangement of the piston and the cylinder.

As a further solution of the present invention: guide rings are fixedly connected to the inner walls of the two third limiting grooves, through the arrangement of the guide rings, it is convenient to prevent deviation when the piston is working.

Compared with the prior art, the beneficial effects of the utility model are:

In the utility model, the setting of the first external thread is convenient to provide positional limitation for the adjustment stroke, and at the same time, it is convenient to provide space for installation and work. Through the setting of the adjusting stud, it is convenient to limit the position of the piston rod, so as to achieve the adjustment stroke Through the setting of the limit bolt, it is convenient to fix the position of the adjusting stud to prevent its position from being shifted when it is impacted. The device has a simple structure and is easy to operate, can effectively reduce the cost of manufacture, and at the same time facilitates the adjustment of the stroke limit of the piston rod, thereby increasing the sales volume of the product.

Description of drawings

Fig. 1 is the main view structural representation of the utility model;

Fig. 2 is the structural representation of main body in the utility model;

Fig. 3 is a schematic diagram of the disassembled structure of the regulating assembly in the utility model;

Fig. 4 is a structural schematic diagram of the adjustment stroke in the utility model.

In the figure: 1, the main body; 101, the first external thread; 102, the first limit groove; 103, the inner sealing ring; 2, the limit bolt; 201, the first through hole; 202, the first internal thread; 203, 3. Adjusting stud; 301. Second through hole; 302. Second internal thread; 303. First cushion; 4. Piston; 401. Third through hole; 402. Second limiting groove ; 403, the third limiting groove; 5, the outer sealing ring; 6, the guide ring; 7, the second buffer pad.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1 to 4. In the embodiment of the present utility model, a pneumatic piston rod for convenient stroke adjustment includes a main body 1, the outer wall of the middle part of the main body 1 is fixedly connected to the inner sealing ring 103, and the main body 1 is fixed on the outer wall of the inner sealing ring 103. The piston 4 is connected, the outer wall of the main body 1 away from the inner sealing ring 103 is provided with a first external thread 101, the outer wall of the main body 1 is located at the position of the first external thread 101, and the limit bolt 2 is threaded, and the limit bolt 2 matches the main body 1 A first through hole 201 is opened through the position of the first through hole 201. The inner wall of the first through hole 201 is provided with a first internal thread 202. The outer wall of the limit bolt 2 near the end of the inner sealing ring 103 is provided with a second external thread 203. The main body 1 is located at the limit An adjusting stud 3 is arranged between the position bolt 2 and the inner sealing ring 103 , and the side wall of the end of the adjustment stud 3 away from the limit bolt 2 is fixedly connected with a first buffer pad 303 .

Wherein, the inside of the adjusting stud 3 matched with the limit bolt 2 is provided with a second through hole 301, the inner wall of the second through hole 301 is provided with a second internal thread 302, the adjusting stud 3 and the limit bolt 2 Threaded connection, through the setting of the adjusting stud 3, it is convenient to adjust the position of the stroke of the piston rod. At the same time, the adjusting stud 3 in this device can be replaced with an adjusting stud 3 of appropriate size according to the situation; the outer wall of the middle part of the main body 1 is located Both sides of the inner sealing ring 103 are provided with first limiting grooves 102, and the inner walls of the two first limiting grooves 102 are fixedly connected with second buffer pads 7, through the setting of the second buffer pads 7, it is convenient to move the piston rod. When working, the piston 4 is provided with impact protection, so that the service life of the piston 4 is guaranteed.

A third through-hole 401 is formed through the inside of the piston 4 that matches the position of the main body 1. The middle part of the outer wall of the piston 4 is provided with a second limiting groove 402. The outer wall of the piston 4 is provided with a second limiting groove 402 on both sides. Three limit grooves 403, through the setting of the second limit groove 402 and the third limit groove 403, it is convenient to provide positional limitation and installation for the outer seal ring 5 and the guide ring 6; the inner wall of the second limit groove 402 is fixed Connected with an outer seal ring 5, through the setting of the outer seal ring 5, it is convenient to seal and install the piston 4 and the cylinder; , it is convenient to prevent offset when the piston 4 is working.

The working principle of the utility model is: when using the device to adjust the stroke, it is only necessary to screw the adjusting stud 3 of suitable size on the first external thread 101 of the outer wall of the main body 1, and adjust it to a suitable position, and then The limit bolt 2 is threadedly connected to the first external thread 101 and to the second internal thread 302 inside the adjusting stud 3 to limit its position. 3 and the cylinder protect the piston rod during work, and then adjust the stroke of the piston rod.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

In describing the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation , are constructed and operated in a specific orientation and therefore cannot be construed as limiting the invention.

Claims (6)

1. A pneumatic piston rod for convenient stroke adjustment, comprising a main body (1), characterized in that: the outer wall of the middle part of the main body (1) is fixedly connected to the inner sealing ring (103), and the main body (1) is located on the inner sealing ring The outer wall of (103) is fixedly connected with the piston (4), the outer wall of the end of the main body (1) away from the inner sealing ring (103) is provided with a first external thread (101), and the outer wall of the main body (1) is located at the first outer wall The position of the thread (101) is threadedly connected with the limit bolt (2), and the position where the limit bolt (2) matches the main body (1) is penetrated with a first through hole (201), and the first through hole ( The inner wall of 201) is provided with a first internal thread (202), the outer wall of the limit bolt (2) near the end of the inner sealing ring (103) is provided with a second external thread (203), and the main body (1) is located at the limit An adjustment stud (3) is arranged between the position bolt (2) and the inner sealing ring (103), and the side wall of the end of the adjustment stud (3) away from the limit bolt (2) is fixedly connected with a first buffer pad ( 303). 2. A pneumatic piston rod for convenient stroke adjustment according to claim 1, characterized in that: the inside of the adjusting stud (3) matched with the limit bolt (2) has a second through opening hole (301), the inner wall of the second through hole (301) is provided with a second internal thread (302), and the adjusting stud (3) is threadedly connected with the limit bolt (2). 3. A pneumatic piston rod for convenient stroke adjustment according to claim 1, characterized in that: the outer wall of the middle part of the main body (1) is located on both sides of the inner sealing ring (103) and is provided with first limiting grooves ( 102), the inner walls of the two first limiting grooves (102) are fixedly connected with second buffer pads (7). 4. A pneumatic piston rod for convenient stroke adjustment according to claim 3, characterized in that a third through hole (401) is opened inside the piston (4) matching the position of the main body (1), The middle part of the outer wall of the piston (4) is provided with a second limiting groove (402), and the outer wall of the piston (4) is provided with a third limiting groove (403) on both sides of the second limiting groove (402). . 5. A pneumatic piston rod with convenient stroke adjustment according to claim 4, characterized in that: the inner wall of the second limiting groove (402) is fixedly connected with an outer sealing ring (5). 6 . A pneumatic piston rod for convenient stroke adjustment according to claim 4 , characterized in that: guide rings ( 6 ) are fixedly connected to the inner walls of the two third limiting grooves ( 403 ).

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