CN218455002U

CN218455002U - Long-stroke direct-acting pneumatic actuating head

Info

Publication number: CN218455002U
Application number: CN202222521768.6U
Authority: CN
Inventors: 史俊博
Original assignee: Ningbo Aiximei Industrial Automation Co ltd
Current assignee: Ningbo Aiximei Industrial Automation Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-02-07
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses a long-stroke direct-acting pneumatic execution head, which comprises an upper cover and a fixed part, wherein the outer side of the fixed part is sleeved with a lower cup body, an air inlet channel part is arranged on the lower cup body, an air inlet is arranged on the air inlet channel part, an air inlet hole is arranged in the air inlet, a piston is arranged on the upper cover, a metal pipe with a smooth inner wall is embedded in the fixed part, and the piston can reciprocate up and down along the metal pipe; the utility model has the advantages that: the piston of the pneumatic actuating head can reciprocate in a low-friction environment by embedding the metal pipe with a smooth inner wall; compared with the prior pneumatic actuating head, the embedding of the metal pipe ensures that the air inlet of the air hole on the actuating head can enter the cylinder body only by bypassing the upper edge of the metal pipe, so that the operating stroke of the piston is prolonged, and the opening stroke of the valve is increased finally; the long-stroke execution head can implement the flow cone function of the valve which requires flow precision design.

Description

Long-stroke direct-acting pneumatic actuating head

Technical Field

The utility model belongs to the technical field of pneumatic executive head, concretely relates to long stroke direct action pneumatic executive head.

Background

An actuating device for opening and closing or adjusting the valve by air pressure is also called a pneumatic actuating mechanism or a pneumatic device.

Chinese utility model patent high life shaft seal valve barrel of application number CN202220208429.X, this patent disclose including the valve barrel main part, the valve barrel main part in be equipped with pneumatic chamber, pneumatic intracavity be equipped with the piston, the external diameter of piston be less than the internal diameter in pneumatic chamber, pneumatic chamber middle part still be equipped with the piston bush, piston bush inner wall and piston sealing connection, the valve barrel main part on still be equipped with the inlet channel structure.

The existing pneumatic actuating head is not beneficial to prolonging the running stroke of the piston and increasing the opening stroke of the valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a long stroke straight pneumatic execution head imbeds the glossy tubular metal resonator of inner wall, and the piston of the execution head that makes can carry out reciprocating motion under the environment of low friction.

In order to achieve the above purpose, the utility model provides a following technical scheme: the long-stroke direct-acting pneumatic execution head comprises an upper cover and a fixing part, wherein a lower cup body is sleeved on the outer side of the fixing part, an air inlet channel part is arranged on the lower cup body, an air inlet is formed in the air inlet channel part, an air inlet hole is formed in the air inlet, a piston is arranged on the upper cover, a metal pipe with a smooth inner wall is embedded into the fixing part, and the piston can reciprocate up and down along the metal pipe.

Preferably, the device further comprises a protection mechanism, and the protection mechanism comprises a protection component and a guide component.

Preferably, the protection part includes lag, fixed slot, movable block, the lag is dismantled and assembled to be set up in the inside of air inlet, the inside in inlet channel portion is seted up to the fixed slot symmetry, the one end embedding fixed slot of movable block, the other end stretch out the fixed slot and with support the piece and be connected, and support the piece and support on the protective sleeve, lantern ring two is installed to the notch of fixed slot, and the lantern ring two is located the outside of movable block, the embedding end lateral surface of movable block is provided with lantern ring one, be provided with the spring on lantern ring one and the lantern ring two, and the spring housing is located on the movable block.

Preferably, the movable block and the abutting block are of an integrated structure, and the end face of the extending end of the abutting block is arc-shaped.

Preferably, a convex handle is arranged on the protective sleeve.

Preferably, the guide part comprises guide pillars and guide grooves, the guide pillars are symmetrically arranged on the abutting block, the guide grooves are symmetrically arranged inside the air inlet channel part, and the guide pillars move along the guide grooves.

Preferably, the top of the upper cover is provided with an outer limiting ring.

Preferably, still include the observation window, and be provided with the upper seal circle on the observation window.

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

the piston of the pneumatic execution head can reciprocate in a low-friction environment by embedding the metal pipe with a smooth inner wall; compared with the prior pneumatic actuating head, the embedding of the metal pipe ensures that the air inlet of the air hole on the actuating head can enter the cylinder body only by bypassing the upper edge of the metal pipe, so that the operating stroke of the piston is prolonged, and the opening stroke of the valve is increased finally; the long-stroke execution head can implement the flow cone function of the valve which requires flow precision design.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic structural view of the utility model with the lower cup removed;

FIG. 3 is a schematic view of the structure of the metal tube of the present invention after being embedded;

FIG. 4 is a schematic view of the intake port protection structure of the present invention;

fig. 5 is an enlarged schematic structural view of the region M in fig. 4 according to the present invention;

in the figure: 1. a lower cup body; 2. an upper cover; 3. an observation window; 4. an upper sealing ring; 5. an outer limit ring; 6. an intake passage portion; 61. fixing grooves; 62. a lantern ring I; 63. a second lantern ring; 64. a movable block; 65. a resisting block; 66. a guide post; 67. a guide groove; 68. a spring; 7. a convex handle; 8. an air inlet; 9. a protective sleeve; 10. a fixed part; 11. a metal tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Please refer to fig. 1-4, which is a first embodiment of the present invention, the first embodiment provides a long-stroke direct-acting pneumatic actuator, comprising an upper cover 2 and a fixing part 10, wherein the outer side of the fixing part 10 is sleeved with a lower cup 1, which realizes the addition of the lower cup 1 and the fixing part 10, and the lower cup 1 is provided with an air inlet passage part 6, which realizes the addition of the air inlet passage part 6, the air inlet passage part 6 is provided with an air inlet 8, which realizes the establishment of the air inlet 8, and the air inlet 8 is provided with an air inlet hole inside, which allows air to be introduced through the air inlet hole, the upper cover 2 is provided with a piston, the fixing part 10 is embedded with a metal tube 11 having a smooth inner wall, which realizes the addition of the metal tube 11, and the piston can reciprocate up and down along the metal tube 11, so that the piston of the pneumatic actuator can reciprocate under the environment of low friction force; compared with the prior pneumatic actuating head, the embedding of the metal pipe 11 ensures that the air inlet of the air hole on the actuating head can enter the cylinder body only by bypassing the upper edge of the metal pipe 11, so that the operating stroke of the piston is prolonged, and the opening stroke of the valve is increased finally; the long-stroke execution head can implement the flow cone function of the valve which requires flow precision design.

In this embodiment, preferably, the top of the upper cover 2 is provided with an outer limit ring 5, so that the outer limit ring 5 is additionally arranged.

In this embodiment, preferably, the device further includes an observation window 3, and an upper sealing ring 4 is disposed on the observation window 3, so that the observation window 3 and the upper sealing ring 4 are connected.

The specific structure and working principle of the upper cover 2, the observation window 3, the upper sealing ring 4, the outer spacing ring 5, the air inlet channel part 6, the air inlet 8 and the air inlet hole in the application are disclosed in the long-life shaft sealing valve sleeve with the application number of CN202220208429. X.

Example 2

Referring to fig. 1-5, a second embodiment of the present invention is shown, which is based on the previous embodiment, except that:

the protection device comprises a protection sleeve 9, a fixing groove 61 and a movable block 64, wherein the protection sleeve 9 is detachably arranged inside an air inlet 8, so that the protection sleeve 9 can be disassembled and assembled, the fixing groove 61 is symmetrically arranged inside an air inlet channel part 6, the opening of the fixing groove 61 is realized, one end of the movable block 64 is embedded into the fixing groove 61, the other end of the movable block 64 extends out of the fixing groove 61 and is connected with a resisting block 65, so that the movable block 64 is connected with the resisting block 65, the resisting block 65 is propped against the protection sleeve 9, a second lantern ring 63 is arranged on a notch of the fixing groove 61, the installation of the second lantern ring 63 is realized, the second lantern ring 63 is positioned outside the movable block 64, a first lantern ring 62 is arranged on the outer side face of the embedding end of the movable block 64, the addition of the first lantern ring 62 is realized, springs 68 are arranged on the first lantern ring 62 and the second lantern ring 63, and the springs 68 are sleeved on the movable block 64, so that the addition of the springs 68 is realized; the movable block 64 and the resisting block 65 are of an integrated structure, so that the movable block 64 and the resisting block 65 have better strength, and the end face of the extending end of the resisting block 65 is arc-shaped; be provided with protruding handle 7 on the lag 9, it is more convenient to take off lag 9 through protruding handle 7.

The operation process is as follows: when in protection, the protection sleeve 9 is taken up and inserted into the air inlet 8, the protection sleeve 9 extrudes the abutting block 65 when inserted, the abutting block 65 is extruded and drives the movable block 64 to move, the spring 68 is stretched when the movable block 64 moves, the stretched spring 68 is reset after the protection sleeve 9 is inserted, the movable block 64 is driven to move, the movable block 64 movably drives the abutting block 65 to abut against the protection sleeve 9, so that the protection sleeve 9 is firmly installed, the protection sleeve 9 shields the air inlet, and the protection of the air inlet is achieved; when the air inlet is needed, the protective sleeve 9 is drawn outwards through the convex handle 7.

Example 3

Referring to fig. 1-5, a third embodiment of the present invention is based on the previous embodiment, except that:

the air inlet passage part comprises an air inlet passage part 6 and is characterized by further comprising a guide part, wherein the guide part comprises guide pillars 66 and guide grooves 67, the guide pillars 66 are symmetrically arranged on the abutting block 65, the guide pillars 66 are added, the guide grooves 67 are symmetrically arranged inside the air inlet passage part 6, the guide grooves 67 are formed, and the guide pillars 66 move along the guide grooves 67.

The operation process comprises the following steps: when the resisting block 65 is pressed to move, the guide post 66 is driven to move along the guide groove 67, and the guide of the resisting block 65 in the pressed movement is increased.

Although embodiments of the present invention have been shown and described, and in particular with reference to the above detailed description, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Long stroke direct action pneumatic actuator head, including upper cover (2), fixed part (10), the outside cover of fixed part (10) is equipped with down cup (1), and is provided with inlet channel portion (6) down on cup (1), air inlet (8) have been seted up on inlet channel portion (6), and the inside of air inlet (8) is provided with the inlet port, be provided with piston, its characterized in that on upper cover (2): a metal pipe (11) with a smooth inner wall is embedded in the fixing part (10), and the piston can reciprocate up and down along the metal pipe (11).

2. The long stroke linear pneumatic actuator head of claim 1, wherein: still include protection machanism, and protection machanism includes guard member and guide part.

3. The long stroke linear pneumatic actuator head of claim 2, wherein: the protection part comprises a protection sleeve (9), a fixing groove (61) and a movable block (64), the protection sleeve (9) is detachably arranged in an air inlet (8), the fixing groove (61) is symmetrically arranged in the air inlet channel part (6), one end of the movable block (64) is embedded into the fixing groove (61), the other end of the movable block stretches out of the fixing groove (61) and is connected with a supporting block (65), the supporting block (65) supports against the protection sleeve (9), a lantern ring two (63) is installed at a notch of the fixing groove (61), the lantern ring two (63) is located outside the movable block (64), the outer side face of the embedding end of the movable block (64) is provided with a lantern ring one (62), the lantern ring one (62) and the lantern ring two (63) are provided with a spring (68), and the spring (68) is sleeved on the movable block (64).

4. A long stroke linear pneumatic actuator head according to claim 3, wherein: the movable block (64) and the abutting block (65) are of an integrated structure, and the end face of the extending end of the abutting block (65) is arc-shaped.

5. A long stroke linear pneumatic actuator head according to claim 3, wherein: and the protecting sleeve (9) is provided with a convex handle (7).

6. A long stroke linear pneumatic actuator head according to claim 3, wherein: the guide part comprises guide posts (66) and guide grooves (67), the guide posts (66) are symmetrically arranged on the abutting block (65), the guide grooves (67) are symmetrically arranged in the air inlet channel part (6), and the guide posts (66) move along the guide grooves (67).

7. The long stroke linear pneumatic actuator head of claim 1, further comprising: the top of the upper cover (2) is provided with an outer limit ring (5).

8. The long stroke linear pneumatic actuator head of claim 1, wherein: the device also comprises an observation window (3), and an upper sealing ring (4) is arranged on the observation window (3).