CN219221274U

CN219221274U - Pneumatic baffle valve

Info

Publication number: CN219221274U
Application number: CN202320285911.8U
Authority: CN
Inventors: 余奎
Original assignee: Wenzhou Youyijing Cleaning Equipment Technology Co ltd
Current assignee: Wenzhou Youyijing Cleaning Equipment Technology Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-06-20
Anticipated expiration: 2033-02-22

Abstract

The utility model relates to the technical field of baffle valves, in particular to a pneumatic baffle valve, which comprises: the valve body comprises a baffle plate, and the baffle plate is used for controlling the passage switch; the pneumatic assembly comprises a valve rod, and the bottom end of the valve rod is connected with the baffle and used for controlling the baffle to move up and down; further comprises: and the manual device is connected with the worm and used for controlling the worm to move up and down under the condition of power failure. According to the utility model, the manual device is arranged, under the condition of power failure, the screw rod can be driven to move by utilizing the hand wheel through worm and worm wheel transmission, so that the valve rod is driven to move downwards, the valve rod is reset by utilizing the reset spring, the normal use of the baffle valve is ensured, the production safety is improved, meanwhile, the screw rod is connected with the valve rod by adopting the connecting sleeve, and under the normal working condition, the screw rod is lifted to the top end and is not contacted with the valve rod, so that the normal working of the valve rod is not influenced.

Description

Pneumatic baffle valve

Technical Field

The utility model relates to the technical field of baffle valves, in particular to a pneumatic baffle valve.

Background

The baffle valve is a valve widely applied to the high-tech fields of electronics, chemical industry, metallurgy, aviation, aerospace, materials, biological medicine, atomic energy, universe detection and the like. According to different driving modes, the pneumatic baffle valve is divided into an electric baffle valve and a pneumatic baffle valve, and the pneumatic baffle valve is used for a vacuum equipment system.

In the prior art, the pneumatic baffle valve is mainly used for controlling the direction of a gas path by using an electromagnetic valve, a manual device is not arranged, the valve cannot normally work under the condition of unexpected power failure, and the state of a pipeline is possibly changed under the condition that the electromagnetic valve fails, so that the production safety is not facilitated.

In view of this, we propose a pneumatic flapper valve.

Disclosure of Invention

In order to remedy the above shortcomings, the present utility model provides a pneumatic flapper valve.

The technical scheme of the utility model is as follows:

a pneumatic flapper valve comprising:

the valve body comprises a baffle plate, and the baffle plate is used for controlling a passage switch;

the pneumatic assembly comprises a valve rod, and the bottom end of the valve rod is connected with the baffle and used for controlling the baffle to move up and down;

further comprises:

and the manual device is connected with the worm and used for controlling the worm to move up and down under the condition of power failure.

As the preferable technical scheme of the utility model, the valve body further comprises an inlet, a valve cavity is arranged above the inlet, the baffle is arranged in the valve cavity, a sealing bulge is arranged between the valve body cavity and the inlet, an outlet is arranged at the bottom of the side surface of the valve body cavity in a penetrating way, and the pneumatic assembly is arranged on the top surface of the valve cavity.

As the preferable technical scheme of the utility model, the pneumatic assembly further comprises a sealing flange, the sealing flange is arranged at the top of the valve cavity, a shell is arranged above the sealing flange, the valve rod is arranged in the shell, the bottom end of the valve rod penetrates through the sealing flange and extends into the valve cavity, a second sealing ring is arranged at the joint of the valve rod and the sealing flange, the top end of the valve rod penetrates through the shell and is connected with the manual device, and a first sealing ring is arranged at the joint of the valve rod and the shell.

As the preferable technical scheme of the utility model, a piston is arranged on the valve rod and positioned in the shell, a piston ring is arranged on the side surface of the piston, a reset spring is arranged on the valve rod and positioned between the piston and the sealing flange, and a vent hole is arranged at the top of the side surface of the shell.

As the preferable technical scheme of the utility model, the manual device comprises a supporting cylinder, the supporting cylinder is arranged at the top of a casing, the top end of a valve rod extends into the supporting cylinder, the top surface of the supporting cylinder is provided with a bottom shell, a top shell is arranged above the bottom shell, a dust cover is arranged above the top shell, a worm wheel is arranged between the top shell and the bottom shell, a worm is arranged on the right side of the worm wheel, a screw is arranged in the middle of the worm wheel, the top end of the screw penetrates through the top shell and extends into the dust cover, the bottom end of the screw penetrates through the bottom shell and is connected with a connecting sleeve, the connecting sleeve is positioned in the supporting cylinder, and the top end of the worm penetrates through the bottom shell and the top shell and is provided with a hand wheel.

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

according to the utility model, the manual device is arranged, under the condition of power failure, the screw rod can be driven to move by utilizing the hand wheel through worm and worm wheel transmission, so that the valve rod is driven to move downwards, the valve rod is reset by utilizing the reset spring, the normal use of the baffle valve is ensured, the production safety is improved, meanwhile, the screw rod is connected with the valve rod by adopting the connecting sleeve, and under the normal working condition, the screw rod is lifted to the top end and is not contacted with the valve rod, so that the normal working of the valve rod is not influenced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional structure of a valve body according to the present utility model;

FIG. 3 is a schematic view of a pneumatic assembly according to the present utility model;

fig. 4 is a schematic structural view of a manual apparatus according to the present utility model.

The meaning of each reference numeral in the figures is:

1. a valve body; 11. an inlet; 12. a valve body cavity; 13. a sealing protrusion; 14. an outlet; 15. a baffle;

2. a pneumatic assembly; 21. a sealing flange; 22. a housing; 23. a valve stem; 24. a first seal ring; 25. a piston; 26. piston rings; 27. a return spring; 28. a second seal ring; 29. a vent hole;

3. a manual device; 31. a support cylinder; 32. a bottom case; 33. a top shell; 34. a dust cover; 35. a worm wheel; 36. a worm; 37. a screw; 38. a connecting sleeve; 39. and a hand wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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 the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-4, the present utility model is described in detail by the following embodiments:

a pneumatic flapper valve comprising:

the valve body 1, the valve body 1 includes baffle 15, the baffle 15 is used for controlling the access switch, the valve body 1 still includes the entry 11, the entry 11 top is equipped with the valve chamber 12 above, the baffle 15 is installed in the valve chamber 12, be equipped with sealed protruding 13 between valve chamber 12 and the entry 11, the valve chamber 12 side bottom link up and is equipped with the export 14, pneumatic module 2 installs at the valve chamber 12 top surface

Except for the baffle 15, the valve body 1 is integrally formed by adopting a metal material, the baffle 15 adopts the metal material as a main body, and the bottom is stuck with a rubber material.

The pneumatic assembly 2, the pneumatic assembly 2 includes valve rod 23, valve rod 23 bottom and baffle 15 threaded connection, be used for controlling baffle 15 reciprocates, pneumatic assembly 2 still includes sealing flange 21, sealing flange 21 passes through the bolt and installs at valve cavity 12 top, sealing flange 21 top is through the bolt mounting casing 22, valve rod 23 slidable mounting is inside casing 22, valve rod 23 bottom passes sealing flange 21 and extends into valve cavity 12, valve rod 23 and sealing flange 21 junction nest installs the second sealing washer 28, the valve rod 23 top runs through casing 22 and is connected with manual device 3, valve rod 23 and casing 22 junction nest installs first sealing washer 24, the last piston 25 that just is located in casing 22 of valve rod 23, piston 25 side nest installs piston ring 26, the cover has reset spring 27 between piston 25 and sealing flange 21 on the valve rod 23, casing 22 side top welding has air vent 29.

The vent hole 29 is connected with a gas source through a pipeline, the vent hole 29 is filled with gas, the gas enters between the inner side of the top of the shell 22 and the piston 25, the gas pushes the piston 25 to move downwards with the valve rod 23, the return spring 27 is compressed, the valve rod 23 drives the baffle 15 to move downwards until the baffle 15 presses against the sealing bulge 13 to seal the inlet 11, when the gas is discharged, the return spring 27 pushes up the piston 25 to drive the valve rod 23 to move upwards, thereby driving the baffle 15 to move upwards to open the inlet 11, the first sealing ring 24, the piston ring 26 and the second sealing ring 28 all play a sealing role,

further comprises:

the manual device 3, manual device 3 is connected with worm 36, be used for controlling worm 36 reciprocate under the outage condition, manual device 3 includes support section of thick bamboo 31, support section of thick bamboo 31 passes through the bolt mounting at casing 22 top, the valve rod 23 top extends into support section of thick bamboo 31 in, support section of thick bamboo 31 top surface welding has drain pan 32, top shell 33 is installed through the bolt to drain pan 32 top, top shell 33 top is installed shield 34 through the bolt, install worm wheel 35 rotatably between top shell 33 and the drain pan 32, worm wheel 35 right side meshing has worm 36, worm wheel 35 middle part screw thread installation screw 37, the screw rod 37 top passes top shell 33 and extends into shield 34 in, the screw rod 37 bottom is connected with connecting sleeve 38 through drain pan 32, connecting sleeve 38 is located support section of thick bamboo 31, worm 36 top passes drain pan 32 and top shell 33 fixed mounting has hand wheel 39.

The hand wheel 39 rotates to drive the worm 36 to rotate, so as to drive the worm wheel 35 to rotate, and because the worm wheel 35 is in threaded connection with the screw rod 37, the worm wheel 35 rotates to drive the screw rod 37 to move up and down, when the screw rod 37 moves down, the connecting sleeve 38 can be sleeved on the top end of the valve rod 23 to prop against the valve rod 23 to move down, the valve closing function is achieved, and when the screw rod 37 moves up, the return spring 27 can provide upward elastic force to enable the valve rod 23 to return to the original position, and the valve is opened.

It should be noted that the manual device, when not in use, should move the connecting sleeve 38 to the highest position, avoiding the connecting sleeve 38 from affecting the upward movement of the valve stem 23.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A pneumatic flapper valve comprising:

a valve body (1), the valve body (1) comprising a baffle (15), the baffle (15) being used for controlling a passage switch;

the pneumatic assembly (2) comprises a valve rod (23), and the bottom end of the valve rod (23) is connected with the baffle plate (15) and used for controlling the baffle plate (15) to move up and down;

characterized by further comprising:

and the manual device (3) is connected with the worm (36) and is used for controlling the worm (36) to move up and down under the condition of power failure.

2. The pneumatic flapper valve of claim 1, wherein: the valve body (1) further comprises an inlet (11), a valve body cavity (12) is formed above the inlet (11), a baffle (15) is installed in the valve body cavity (12), a sealing protrusion (13) is arranged between the valve body cavity (12) and the inlet (11), an outlet (14) is formed in the bottom of the side face of the valve body cavity (12) in a penetrating mode, and the pneumatic assembly (2) is installed on the top face of the valve body cavity (12).

3. The pneumatic flapper valve of claim 2, wherein: the pneumatic assembly (2) further comprises a sealing flange (21), the sealing flange (21) is arranged at the top of the valve cavity (12), a machine shell (22) is arranged above the sealing flange (21), the valve rod (23) is arranged inside the machine shell (22), the bottom end of the valve rod (23) penetrates through the sealing flange (21) and extends into the valve cavity (12), a second sealing ring (28) is arranged at the joint of the valve rod (23) and the sealing flange (21), the top end of the valve rod (23) penetrates through the machine shell (22) and is connected with the manual device (3), and a first sealing ring (24) is arranged at the joint of the valve rod (23) and the machine shell (22).

4. A pneumatic flapper valve as claimed in claim 3 wherein: the valve rod (23) is provided with a piston (25) which is positioned in the shell (22), the side surface of the piston (25) is provided with a piston ring (26), the valve rod (23) is provided with a return spring (27) which is positioned between the piston (25) and the sealing flange (21), and the top of the side surface of the shell (22) is provided with a vent hole (29).

5. A pneumatic flapper valve as claimed in claim 3 wherein: manual device (3) are including supporting section of thick bamboo (31), support section of thick bamboo (31) install at casing (22) top, valve rod (23) top extends into in supporting section of thick bamboo (31), supporting section of thick bamboo (31) top surface is equipped with drain pan (32), drain pan (32) top is equipped with top shell (33), top shell (33) top is equipped with shield (34), be equipped with worm wheel (35) between top shell (33) and drain pan (32), worm wheel (35) right side is equipped with worm (36), worm wheel (35) middle part is equipped with screw rod (37), top of screw rod (37) is passed top shell (33) and is extended into shield (34), screw rod (37) bottom is run through drain pan (32) and is connected with connecting sleeve (38), connecting sleeve (38) are located supporting section of thick bamboo (31), worm (36) top is passed drain pan (32) and is equipped with hand wheel (39) top shell (33).