CN210566573U

CN210566573U - Exhaust protection device for pneumatic actuator

Info

Publication number: CN210566573U
Application number: CN201921120632.6U
Authority: CN
Inventors: 胡冰; 何楚天; 陈超
Original assignee: Wuxi Aishengtuoke Fluid Control Co ltd
Current assignee: Wuxi Aishengtuoke Fluid Control Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-05-19
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses an exhaust protection device for pneumatic actuator, including blast pipe, connector, protection device, the fixed block is installed to protection device inner wall longitudinal symmetry, two fixed blocks lean on interior one end to have seted up the groove of falling T one, fall and be provided with the piece of falling T one in the T groove one, the connecting rod is connected to the piece of falling T right-hand member, the connecting rod right-hand member is connected the piece of falling T two, the right part is provided with the ring piece in the protection device, the ring piece corresponds the position of the piece of falling T two and has seted up the groove of falling T two, install two semicircle barrels between the piece of two falling T one, two halves barrels lean on interior one end to be provided with joint piece and joint groove respectively, through joint piece and joint groove cooperation joint between the two halves barrel, air vent one has been seted up at the both ends about the semicircle barrel, the protection device right-. The utility model discloses a two halves drum is opened in joint piece and joint groove, takes filter screen and sponge in the two halves drum out to change convenient and fast.

Description

Exhaust protection device for pneumatic actuator

Technical Field

The utility model relates to a protection device specifically is an exhaust protection device for pneumatic actuator.

Background

The pneumatic actuator is an actuating device for opening and closing or regulating a valve by air pressure, is also called a pneumatic actuating mechanism or a pneumatic device, but is generally called a pneumatic head. Pneumatic actuators are sometimes also equipped with certain auxiliary devices. Commonly used valve positioners and hand wheel mechanisms. The valve positioner is used for improving the performance of the actuator by utilizing a feedback principle, so that the actuator can realize accurate positioning according to a control signal of the controller. The hand wheel mechanism is used for directly operating the control valve to maintain normal production when the control system has no power supply, no air supply, no output of the controller or failure of the actuating mechanism.

Chinese patent discloses an exhaust protection device for pneumatic actuator (grant publication No. CN 208870869U), and this patent technique can effectually reduce the inside steam and the dust of pneumatic actuator, but, can not change the filter screen and adsorb the sponge, and the long-time after-use protection effect variation needs to be changed protection device again, and the cost is higher. Accordingly, those skilled in the art have provided an exhaust protection device for a pneumatic actuator that solves the problems set forth in the background above.

Disclosure of Invention

An object of the utility model is to provide an exhaust protection device for pneumatic actuator to solve the problem that proposes among the above-mentioned background art.

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

an exhaust protection device for a pneumatic actuator comprises an exhaust pipe, a connector and a protection device, wherein the left end of the protection device is fixedly connected with the connector, one end of the exhaust pipe is inserted into the left end of the protection device and communicated with the connector, the protection device is composed of a barrel body and a barrel bottom, fixed blocks are symmetrically arranged on the upper portion and the lower portion of the inner wall of the protection device, a first inverted T-shaped groove is formed in one end of each fixed block, a first inverted T-shaped block is arranged in the first inverted T-shaped groove and is slidably connected with the first inverted T-shaped block, the right end of the first inverted T-shaped block is connected with a connecting rod, the right end of the connecting rod is connected with a second inverted T-shaped block, a circular ring block is arranged on the right portion of the protection device and is fixedly connected to the left wall of the barrel bottom, a second inverted T-shaped groove is formed in the position of the circular ring block, which corresponds to the second inverted T-shaped block, the two half cylinders are clamped in a matched mode through the clamping blocks and the clamping grooves, the left end and the right end of each half cylinder are provided with a first air vent, the right end of the protection device is provided with a third air vent, and the third air vent is located in the circular ring block.

As a further aspect of the present invention: the cylinder body is in threaded rotary connection with the cylinder bottom.

As a further aspect of the present invention: a plurality of fastening bolts are arranged on the peripheral side face of the connector and are arranged in an annular shape.

As a further aspect of the present invention: and a rubber fastening pad is arranged in the position corresponding to the fastening bolt in the connector, and the rubber fastening pad is fixedly connected with the fastening bolt.

As a further aspect of the present invention: two semicircle plates are arranged inside the semicircle cylinders, and a second vent hole is formed in one end of each semicircle plate.

As a further aspect of the present invention: the fixed block fixed connection is at the stack shell inner wall, and fixed block length is less than stack shell length.

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

the utility model discloses a sponge and filter screen keep apart steam and dust in to the air, prevent that steam and dust from getting into pneumatic actuator inside, influence pneumatic actuator life, drive the ring piece through the rotary drum end simultaneously and rotate, take the stack shell out with the semicircle barrel, then open two halves drum through joint piece and joint groove, take filter screen and sponge in the two halves drum out and change, convenient and fast, the cost of province is subtracted.

Drawings

Fig. 1 is a schematic diagram of an exhaust gas protection device for a pneumatic actuator.

FIG. 2 is a perspective view of a semi-cylinder in an exhaust protection device for a pneumatic actuator.

Fig. 3 is a perspective view of a fixed block in an exhaust gas protection device for a pneumatic actuator.

FIG. 4 is a schematic diagram of a ring block of an exhaust protection device for a pneumatic actuator.

Fig. 5 is a schematic structural diagram of a clamping block in an exhaust protection device for a pneumatic actuator.

In the figure: 1. an exhaust pipe; 2. a connector; 21. fastening a bolt; 22. a rubber fastening pad; 3. a protection device; 31. a barrel body; 32. a cylinder bottom; 4. a vent hole III; 5. a semi-cylinder; 51. a first vent hole; 52. a clamping block; 53. a clamping groove; 6. a semicircular plate; 61. a second vent hole; 7. a circular ring block; 71. a T-shaped groove II is inverted; 8. a fixed block; 81. a first T-shaped groove is inverted; 9. a first T block is inverted; 91. and (5) reversing the T block II.

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.

Referring to fig. 1-5, in the embodiment of the present invention, an exhaust protection device for a pneumatic actuator comprises an exhaust pipe 1, a connector 2, and a protection device 3, wherein the left end of the protection device 3 is fixedly connected to the connector 2, one end of the exhaust pipe 1 is inserted into the connector 2 to communicate with the left end of the protection device 3, the protection device 3 is composed of a barrel 31 and a barrel bottom 32, the inner wall of the protection device 3 is provided with fixed blocks 8 in an up-and-down symmetrical manner, two fixed blocks 8 are provided with a first inverted T groove 81 near the inner end, the first inverted T groove 81 is provided with a first inverted T block 9, the first inverted T groove 81 is connected with the first inverted T block 9 in a sliding manner, the right end of the first inverted T block 9 is connected to a connecting rod, the right end of the connecting rod is connected to a second inverted T block 91, the right portion of the protection device 3 is provided with a ring block 7, the ring block 7 is fixedly connected to the, and two inverted T blocks 91 and two inverted T grooves 71 are slidably connected, two semi-cylinders 5 are installed between the two inverted T blocks 9, the two semi-cylinders 5 are respectively provided with a clamping block 52 and a clamping groove 53 by inner ends, the two semi-cylinders 5 are clamped by the clamping block 52 and the clamping groove 53 in a matching manner, the left end and the right end of the semi-cylinder 5 are provided with a first air vent 51, the right end of the protection device 3 is provided with a plurality of third air vents 4, and the third air vents 4 are located in the circular ring blocks 7.

The cylinder body 31 is in threaded rotary connection with the cylinder bottom 32.

A plurality of fastening bolts 21 are arranged on the peripheral side surface of the connector 2, and the fastening bolts 21 are arranged in a ring shape.

And a rubber fastening pad 22 is arranged in the connector 2 at a position corresponding to the fastening bolt 21, and the rubber fastening pad 22 is fixedly connected with the fastening bolt 21.

Two semicircle plates 6 are arranged inside the semicircle barrel 5, and a vent hole two 61 is arranged at one end of each semicircle plate 6.

Fixed block 8 fixed connection is at barrel 31 inner wall, and fixed block 8 length is less than barrel 31 length.

The utility model discloses a theory of operation is: inserting the exhaust pipe 1 into the connector 2 to communicate with the left end of the protection device 3, then rotating the fastening bolt 21, the fastening bolt 21 extrudes the exhaust pipe 1 through the rubber fastening pad 22 to enable the protection device 3 to be firmly communicated with the exhaust pipe 1, then rotating the barrel bottom 32 to drive the circular ring block 7 to rotate, sliding the inverted T block two 91 in the inverted T groove two 71 to enable the barrel bottom 32 to leave the barrel body 31, then drawing the barrel bottom 32, pulling the inverted T block two 91 to pull the inverted T block one 9 to slide in the inverted T groove one 81 to pull out the two half barrels 5, opening the two half barrels 5 through the clamping block 52 and the clamping groove 53, placing the filter screen between the two half circular plates 6, placing the sponge between the half barrels 6 and the inner wall of the half barrels 5, then combining the two half barrels 5 together through the clamping block 52 and the clamping groove 53, pushing the half barrels 5 into the barrel body 31, rotating the barrel bottom 32, and isolating the water vapor and dust in the air through the sponge and the filter screen, prevent inside steam and the dust entering pneumatic actuator, influence pneumatic actuator life.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An exhaust protection device for a pneumatic actuator comprises an exhaust pipe (1), a connector (2) and a protection device (3), and is characterized in that the left end of the protection device (3) is fixedly connected with the connector (2), one end of the exhaust pipe (1) is inserted into the left end of the connector (2) to be communicated with the protection device (3), the protection device (3) is composed of a barrel body (31) and a barrel bottom (32), fixed blocks (8) are symmetrically arranged on the upper and lower sides of the inner wall of the protection device (3), a first inverted T groove (81) is formed by one end, close to the inner end, of each of the two fixed blocks (8), a first inverted T groove (81) is formed in each first inverted T groove (81), the first inverted T groove (81) is slidably connected with the first inverted T groove (9), the right end of the first inverted T groove (9) is connected with a connecting rod, the right end of the connecting rod is connected with a second inverted T, and ring piece (7) fixed connection is at the left wall in bobbin base (32), ring piece (7) correspond the position of falling T piece two (91) and seted up falling T groove two (71), and fall T piece two (91) and fall T groove two (71) sliding connection, install two semicircle tubes (5) between two falling T piece one (9), two halves drum (5) lean on interior one end to be provided with joint piece (52) and joint groove (53) respectively, cooperate the joint through joint piece (52) and joint groove (53) between two halves drum (5), air vent (51) have been seted up at both ends about semicircle tube (5), protection device (3) right-hand member has been seted up a plurality of air vent three (4), and air vent three (4) are located ring piece (7).

2. An exhaust gas protection device for a pneumatic actuator according to claim 1, wherein the shaft (31) is screwed to the shaft bottom (32).

3. An exhaust gas protection device for a pneumatic actuator according to claim 1, wherein a plurality of fastening bolts (21) are installed on the peripheral side of the connecting head (2), and the fastening bolts (21) are arranged in a ring shape.

4. An exhaust gas protection device for a pneumatic actuator according to claim 1, wherein a rubber fastening pad (22) is provided in the connecting head (2) at a position corresponding to the fastening bolt (21), and the rubber fastening pad (22) is fixedly connected to the fastening bolt (21).

5. The exhaust protection device for the pneumatic actuator according to claim 1, wherein two semicircular plates (6) are arranged inside the two semicircular cylinders (5), and one end of each semicircular plate (6) is provided with a second vent hole (61).

6. The exhaust gas protection device for the pneumatic actuator according to claim 1, wherein the fixing block (8) is fixedly connected to the inner wall of the cylinder (31), and the length of the fixing block (8) is smaller than that of the cylinder (31).