CN219345656U

CN219345656U - Pneumatic actuator for valve

Info

Publication number: CN219345656U
Application number: CN202320553028.2U
Authority: CN
Inventors: 孙新; 肖俊; 孙福星
Original assignee: Tianjin Baili Ertong Machinery Fittings & Parts Co ltd
Current assignee: Tianjin Baili Ertong Machinery Fittings & Parts Co ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-07-14
Anticipated expiration: 2033-03-21

Abstract

The utility model discloses a pneumatic actuator for a valve, which comprises a valve body, an actuator main body and an external mechanism; connecting flanges are arranged at the left end and the right end of the valve body; the external connection mechanism comprises two groups of external connection pipes, an external connection flange fixedly connected with the external connection pipes and a sealing seat fixed on one end face of the external connection flange, a sealing element is fixedly arranged on one end face, close to the external connection flange, of the connecting flange, and the sealing element can be in sealing connection with the sealing seat. According to the pneumatic actuator for the valve, the valve body can be communicated with the external connection pipe through the connecting flange, the external connection flange can be in sealing connection with the connecting flange through the matching of the sealing seat and the sealing piece, the sealing performance between the actuator main body and the external connection pipe can be improved through the sealing seat and the sealing piece, the firmness between the connecting flange and the external connection flange can be improved through the fixed rod and the fixed block, the connection stability of the connecting flange and the external connection flange is ensured, the situation of collapse and detachment of the connecting flange is avoided, and the pneumatic actuator is convenient for people to use.

Description

Pneumatic actuator for valve

Technical Field

The utility model relates to the technical field of pneumatic actuators, in particular to a pneumatic actuator for a valve.

Background

The actuator is an essential important component in the automatic control system, and has the functions of receiving the control signal sent by the controller and changing the size of the controlled medium so as to maintain the controlled variable in the required value or a certain range, and the actuator can be divided into three categories of pneumatic, hydraulic and electric according to the energy form of the actuator.

The existing pneumatic actuator has the defect of one end when in use, the joint of the existing pneumatic actuator is generally fixedly connected by a threaded pipe in the installation process, the connection process is relatively complicated, the joint of the actuator is easy to loosen in the long-time use process, and the pneumatic actuator for the valve cannot meet the requirements of people because the actuator is easy to collapse under the condition that the gas communicated in the actuator is at high pressure for a long time and leaks air.

Disclosure of Invention

The utility model mainly aims to provide a pneumatic actuator for a valve, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a pneumatic actuator for a valve comprises a valve body, an actuator main body and an external mechanism; the actuator main body is detachably arranged on the valve body and controls the valve body; the external connection mechanism is detachably connected with the valve body; wherein, the left end and the right end of the valve body are both provided with connecting flanges; the external connection mechanism comprises two groups of external connection pipes, an external connection flange fixedly connected with the external connection pipes and a sealing seat fixed on one end face of the external connection flange, wherein a sealing element is fixedly arranged on one end face of the connecting flange, which is close to the external connection flange, and the sealing element can be in sealing connection with the sealing seat.

Preferably, a sealing groove fixedly connected with the sealing element is formed in the sealing seat, and the sealing element is in threaded connection with the sealing groove.

Preferably, the connecting flange is provided with a first through hole communicated with the valve body, the external connecting flange is provided with a second through hole communicated with the external connecting pipe, and the second through hole is communicated with the sealing groove.

Preferably, the external connection mechanism further comprises a plurality of groups of fixing rods arranged on the external connection flange and fixing blocks arranged on the fixing rods, and one side face of each fixing block is attached to one side face of the connecting flange.

Preferably, the connecting flange and the external flange are provided with connecting holes corresponding to the fixing rods, and the connecting holes are arranged on the connecting flange and the external flange respectively in a circular array.

Preferably, the upper end of the actuator main body is detachably provided with a controller and a annunciator arranged at the upper end of the controller, one side of the controller is provided with an external switch, and the front end surface of the actuator main body is symmetrically provided with two groups of gas transmission ports.

Preferably, the lower end face of the actuator main body is detachably provided with a fixing piece, a plurality of groups of bolts connected with the valve body are detachably arranged on the fixing piece, and the fixing piece is of an annular structure.

Preferably, a valve rod connected with the valve body is arranged on the lower end face of the actuator main body, and one end of the valve rod penetrates through the fixing piece.

Compared with the prior art, the utility model has the following beneficial effects:

1. through the valve body, executor main part and the external mechanism that set up, the valve body can communicate with external pipe through flange, external flange passes through sealing seat and sealing member cooperation can with flange sealing connection, sealing seat and sealing member can improve the sealing performance between executor main part and the external pipe, through dead lever and the fixed block that set up, can improve the fastness between flange and the external flange, guarantee its stability of connecting, avoid it to appear collapsing the condition that takes off, make things convenient for people to use, convenient for operation has increased pneumatic executor's suitability.

2. Through valve body and the executor main part that sets up, controller and annunciator cooperation are used, can improve the control effect of executor main part, and through mounting and the bolt that sets up, can dismantle the maintenance to valve body and executor main part, the executor main part is controlled the valve body through the valve rod, makes things convenient for people to use, and whole device simple structure, convenient operation has increased the suitability of whole pneumatic actuator.

Drawings

Fig. 1 is an overall construction diagram of a pneumatic actuator for a valve according to the present utility model.

FIG. 2 is a partial block diagram of an extension tube and an external flange in a pneumatic actuator for a valve according to the present utility model.

Fig. 3 is a partial construction view of a valve body and an actuator body in a pneumatic actuator for a valve according to the present utility model.

In the figure: 1. a valve body; 2. an actuator body; 3. a connecting flange; 4. an outer connecting pipe; 5. an external flange; 6. a sealing seat; 7. a seal; 8. a first through hole; 9. a second through hole; 10. sealing grooves; 11. a fixed rod; 12. a fixed block; 13. a connection hole; 14. a controller; 15. an annunciator; 16. an external switch; 17. a gas transfer port; 18. a fixing member; 19. a bolt; 20. a valve rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. In addition, for convenience of description hereinafter, references to "upper", "lower", "left", "right" are equivalent to the directions of upper, lower, left, right, etc. of the drawings themselves, and the references to "first", "second", etc. are to be distinguished in description, and have no other special meaning

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Example 1

Referring to fig. 1 to 3, a pneumatic actuator for a valve comprises a valve body 1, an actuator body 2 and an external mechanism; the actuator body 2 is detachably mounted on the valve body 1 and controls the valve body 1; the external connection mechanism is detachably connected with the valve body 1; wherein, the left and right ends of the valve body 1 are provided with connecting flanges 3; the external connection mechanism comprises two groups of external connection pipes 4, an external connection flange 5 fixedly connected with the external connection pipes 4 and a sealing seat 6 fixed on one end face of the external connection flange 5, a sealing piece 7 is fixedly arranged on one end face, close to the external connection flange 5, of the connecting flange 3, and the sealing piece 7 can be in sealing connection with the sealing seat 6.

The sealing seat 6 is provided with a sealing groove 10 fixedly connected with the sealing element 7, and the sealing element 7 is in threaded connection with the sealing groove 10.

The connecting flange 3 is provided with a first through hole 8 communicated with the valve body 1, the external flange 5 is provided with a second through hole 9 communicated with the external pipe 4, and the second through hole 9 is communicated with the sealing groove 10.

The external connection mechanism further comprises a plurality of groups of fixing rods 11 arranged on the external connection flange 5 and fixing blocks 12 arranged on the fixing rods 11, and one side face of each fixing block 12 is attached to one side face of the connecting flange 3.

The connecting flange 3 and the external flange 5 are provided with connecting holes 13 corresponding to the fixing rods 11, and a plurality of groups of connecting holes 13 are respectively arranged on the connecting flange 3 and the external flange 5 in a circular array.

The utility model relates to a pneumatic actuator for a valve, which is used when:

the regulating valve body 1, the actuator body 2 and the external connection mechanism are characterized in that the external connection flange 5 and the connecting flange 3 are aligned, the sealing piece 7 is installed in the sealing groove 10, the sealing seat 6 and the sealing piece 7 are fixed, one end of the fixing rod 11 penetrates through the connecting hole 13, the fixing block 12 is installed on the fixing rod 11, the external connection flange 5 and the connecting flange 3 are fixed, and the external connection pipe 4 and the valve body 1 are communicated.

Through valve body 1, executor main part 2 and the external mechanism that sets up, valve body 1 can communicate with external pipe 4 through flange 3, external flange 5 can with flange 3 sealing connection through sealing seat 6 and sealing member 7 cooperation, sealing seat 6 and sealing member 7 can improve the sealing performance between executor main part 2 and the external pipe 4, through dead lever 11 and fixed block 12 that set up, can improve the fastness between flange 3 and the external flange 5, guarantee the stability of its connection, avoid it to appear collapsing the condition that takes off, make things convenient for people to use, convenient for operation has increased pneumatic executor's suitability.

Example 2

As shown in fig. 1 to 3, the pneumatic actuator for a valve according to the present utility model further includes, as compared with embodiment 1:

the upper end of the actuator main body 2 is detachably provided with a controller 14 and a annunciator 15 arranged at the upper end of the controller 14, one side of the controller 14 is provided with an external switch 16, and the front end surface of the actuator main body 2 is symmetrically provided with two groups of gas transmission ports 17.

The annunciator 15 can be remotely connected through a wireless network to control the controller 14.

The lower end face of the actuator main body 2 is detachably provided with a fixing piece 18, a plurality of groups of bolts 19 connected with the valve body 1 are detachably arranged on the fixing piece 18, and the fixing piece 18 is of an annular structure.

The fixing member 18 is mounted to the bottom end of the actuator body 2 by a bolt 19.

The lower end surface of the actuator body 2 is provided with a valve stem 20 connected to the valve body 1, and one end of the valve stem 20 passes through the fixing member 18.

the valve body 1 and the actuator body 2 are regulated, the fixing member 18 is fixed to the actuator body 2 by the bolts 19, the bolts 19 fix the fixing member 18 to the valve body 1, so that the valve body 1 and the actuator body 2 are brought together, and the controller 14 is regulated, so that the actuator body 2 controls the valve body 1 by the valve rod 20.

Through the valve body 1 and the executor main part 2 that set up, controller 14 and annunciator 15 cooperation are used, can improve the control effect of executor main part 2, and through mounting 18 and the bolt 19 that set up, can dismantle the maintenance to valve body 1 and executor main part 2, and executor main part 2 passes through valve rod 20 and controls valve body 1, makes things convenient for people to use, and whole device simple structure, convenient operation has increased the suitability of whole pneumatic actuator.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A pneumatic actuator for a valve, comprising:

a valve body (1);

an actuator body (2) which is detachably attached to the valve body (1) and controls the valve body (1);

the external connection mechanism is detachably connected with the valve body (1);

wherein, the left and right ends of the valve body (1) are provided with connecting flanges (3);

the external connection mechanism comprises two groups of external connection pipes (4), an external connection flange (5) fixedly connected with the external connection pipes (4) and a sealing seat (6) fixed on one end face of the external connection flange (5), a sealing piece (7) is fixedly arranged on one end face, close to the external connection flange (5), of the connecting flange (3), and the sealing piece (7) can be in sealing connection with the sealing seat (6).

2. A pneumatic actuator for a valve as set forth in claim 1, wherein: the sealing seat (6) is provided with a sealing groove (10) fixedly connected with the sealing piece (7), and the sealing piece (7) is in threaded connection with the sealing groove (10).

3. A pneumatic actuator for a valve as set forth in claim 2, wherein: the connecting flange (3) is provided with a first through hole (8) communicated with the valve body (1), the external flange (5) is provided with a second through hole (9) communicated with the external connecting pipe (4), and the second through hole (9) is communicated with the sealing groove (10).

4. A pneumatic actuator for a valve as set forth in claim 3, wherein: the external connection mechanism further comprises a plurality of groups of fixing rods (11) arranged on the external connection flange (5) and fixing blocks (12) arranged on the fixing rods (11), and one side face of each fixing block (12) is attached to one side face of the connecting flange (3).

5. A pneumatic actuator for a valve as set forth in claim 4, wherein: connecting holes (13) corresponding to the fixing rods (11) are formed in the connecting flange (3) and the external connecting flange (5), and a plurality of groups of connecting holes (13) are respectively arranged on the connecting flange (3) and the external connecting flange (5) in a circular array.

6. A pneumatic actuator for a valve as set forth in claim 5, wherein: the automatic air delivery device is characterized in that a controller (14) and a annunciator (15) arranged at the upper end of the controller (14) are detachably arranged at the upper end of the actuator main body (2), an external switch (16) is arranged on one side of the controller (14), and two groups of air delivery ports (17) are symmetrically arranged on the front end face of the actuator main body (2).

7. A pneumatic actuator for a valve as set forth in claim 6, wherein: the lower end face of the actuator main body (2) is detachably provided with a fixing piece (18), a plurality of groups of bolts (19) connected with the valve body (1) are detachably arranged on the fixing piece (18), and the fixing piece (18) is of an annular structure.

8. A pneumatic actuator for a valve as set forth in claim 7, wherein: the lower end face of the actuator main body (2) is provided with a valve rod (20) connected with the valve body (1), and one end of the valve rod (20) penetrates through the fixing piece (18).