CN210318600U

CN210318600U - Pneumatic gate valve convenient to adjust flow size

Info

Publication number: CN210318600U
Application number: CN201921272248.8U
Authority: CN
Inventors: 项光中; 胡宝
Original assignee: Zhejiang Zhanxude Automation Control Valve Co ltd
Current assignee: Zhejiang Zhanxude Automation Control Valve Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-04-14
Anticipated expiration: 2029-08-07

Abstract

The utility model relates to a pneumatic brake valve technical field specifically is a pneumatic brake valve convenient to regulated flow size, which comprises a valve body, the valve body both sides are equipped with fluid inlet pipe and flow outlet pipe, the valve body top is equipped with the observation room, one side of observation room is equipped with the lug, be equipped with the scale mark on the lug, the observation room top is equipped with air pressure control mechanism, air pressure control mechanism includes top and casing, be equipped with the diaphragm between cap and the casing, be equipped with two springs between cap and the diaphragm, set up the hole of aerifing rather than inside running through on the casing, be equipped with the case in the valve body, the case includes the ram block of bottom, the top of ram block is equipped with the valve rod, it is equipped with the fixed block in the observation. This pneumatic gate valve convenient to adjust flow size, through pointer and the scale mark that sets up, the open condition of valve is mastered through the directional scale of observing the pointer to the convenience, and then adjusts the size that the position control valve of case opened through the atmospheric pressure between regulation diaphragm and drain pan.

Description

Pneumatic gate valve convenient to adjust flow size

Technical Field

The utility model relates to a pneumatic gate valve technical field specifically is a pneumatic gate valve convenient to adjust flow size.

Background

The conventional pipeline valve is a pneumatic gate valve, most of the conventional pneumatic gate valves cannot directly and obviously observe the opening condition of the valve, and the flow in the pipeline is not convenient to control by adjusting the valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic brake valve convenient to adjust flow size to solve the problem of proposing among the above-mentioned background art.

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

a pneumatic gate valve convenient for adjusting flow comprises a valve body, wherein a fluid inlet pipe and a flow outlet pipe which are fixedly connected with the valve body are respectively arranged on two sides of the valve body, the fluid inlet pipe and the flow outlet pipe are of hollow structures, a first exhaust hole which penetrates through the valve body is formed in the position, close to the edge of the top, of the side wall of the valve body, an observation chamber which is fixedly connected with the valve body is arranged above the valve body, a lug which is fixedly connected with the observation chamber is arranged on one side of the observation chamber, scale marks are arranged on the lug, a pneumatic control mechanism is arranged above the observation chamber, the pneumatic control mechanism comprises a shell cover at the top and a shell at the bottom, a diaphragm is arranged between the shell cover and the shell, two symmetrical springs are arranged between the shell cover and the diaphragm, a second exhaust hole which penetrates through the shell is formed in the shell cover, the valve body is internally provided with a valve core, the valve core comprises a brake block at the bottom, a valve rod fixedly connected with the brake block is arranged in the middle of the top of the brake block, the top of the valve rod extends into the air pressure control mechanism, a fixed block fixedly connected with the valve rod is arranged in the observation chamber on the valve rod, and a pointer fixedly connected with the fixed block is arranged on one side of the fixed block positioned on the lug.

Preferably, a sealing gasket is arranged at the top of the gate block, a through hole is formed in the sealing gasket, and the valve rod penetrates through the through hole and is in sliding connection with the sealing gasket.

Preferably, the shell cover, the diaphragm and the shell are locked and fixed through a plurality of bolts and nuts.

Preferably, the lower surface of the shell cover is provided with two guide sleeves fixedly connected with the shell cover, the upper surface of the diaphragm is provided with two convex columns fixedly connected with the diaphragm, the bottom of the spring is sleeved outside the convex columns, and the top of the spring is sleeved in the guide sleeves.

Preferably, the central position of the upper surface of the diaphragm is provided with a locking block fixedly connected with the diaphragm, and the locking block is provided with a locking screw and a spring gasket.

Preferably, the top of the valve rod is provided with a threaded hole, the top of the valve rod penetrates through the shell, the diaphragm and the locking block, and the locking screw penetrates through the spring gasket and the threaded hole and is in threaded connection, locking and fixing with the threaded hole.

Preferably, the whole formed by the observation chamber and the projection is of a hollow structure, and the tail end of the pointer is positioned inside the projection and points to the scale mark.

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

this pneumatic gate valve convenient to adjust flow size through pointer and the scale mark that sets up, is convenient for master the condition of opening of valve through the directional scale of observing the pointer, and then adjusts the position of case through the atmospheric pressure between regulation diaphragm and the drain pan, has solved the unable direct striking condition of observing that the valve is opened of present most pneumatic gate valve, is not convenient for control the problem of the size of flow in the pipeline through the adjustment valve.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the valve body of the present invention;

FIG. 3 is a schematic structural view of an observation chamber of the present invention;

fig. 4 is an exploded view of the pneumatic control mechanism of the present invention;

FIG. 5 is a schematic structural view of the housing cover of the present invention;

FIG. 6 is a schematic structural view of the diaphragm of the present invention;

fig. 7 is a schematic structural view of the housing of the present invention;

fig. 8 is a schematic structural view of the valve core of the present invention;

fig. 9 is a top view of the overall structure of the present invention;

fig. 10 is a cross-sectional view taken along a-a of the overall structure of the present invention.

In the figure: 1. a valve body; 10. a fluid inlet tube; 11. a flow outlet pipe; 12. a first exhaust port; 2. an observation room; 20. a bump; 200. scale lines; 3. an air pressure control mechanism; 30. a shell cover; 300. a second vent hole; 301. a guide sleeve; 31. a membrane; 310. a convex column; 311. a locking block; 32. a housing; 320. an inflation hole; 33. a spring; 34. a bolt and a nut; 35. locking screws; 350. a spring washer; 4. a valve core; 40. a brake block; 41. a valve stem; 4. a threaded hole; 42. a fixed block; 420. a pointer; 43. a gasket seal.

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.

In the description of the present invention, it is to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-10, the present invention provides a technical solution:

a pneumatic gate valve convenient for adjusting the flow rate comprises a valve body 1, a fluid inlet pipe 10 and a flow outlet pipe 11 which are fixedly connected with the valve body 1 are respectively arranged on two sides of the valve body 1, the fluid inlet pipe 10 and the flow outlet pipe 11 are of a hollow structure, a first exhaust hole 12 which penetrates through the valve body 1 is arranged on the side wall of the valve body 1 close to the edge of the top, an observation chamber 2 which is fixedly connected with the valve body 1 is arranged above the valve body 1, a lug 20 which is fixedly connected with the observation chamber 2 is arranged on one side of the observation chamber 2, a scale mark 200 is arranged on the lug 20, a pneumatic control mechanism 3 is arranged above the observation chamber 2, the pneumatic control mechanism 3 comprises a shell cover 30 on the top and a shell 32 on the bottom, a diaphragm 31 is arranged between the shell cover 30 and the shell 32, two symmetrical springs 33 are arranged between the shell cover 30 and the diaphragm 31, a, the valve body 1 is internally provided with a valve core 4, the valve core 4 comprises a brake block 40 at the bottom, a valve rod 41 fixedly connected with the brake block 40 is arranged at the middle position of the top of the brake block 40, the top of the valve rod 41 extends into the air pressure control mechanism 3, a fixed block 42 fixedly connected with the valve rod 41 is arranged in the observation chamber 2, and one side of the fixed block 42, which is positioned at the lug 20, is provided with a pointer 420 fixedly connected with the fixed block.

In this embodiment, the housing cover 30, the diaphragm 31 and the housing 32 are fastened and fixed by a plurality of bolts and nuts 34, a sealing gasket 43 is disposed on the top of the gate block 40, a through hole is formed in the sealing gasket 43, and the valve rod 41 penetrates through the through hole to prevent the fluid inlet pipe 10 and the flow outlet pipe 11 from leaking around the gate block 40.

In addition, the lower surface of the case cover 30 is provided with two guide sleeves 301 fixedly connected with the case cover, the upper surface of the diaphragm 31 is provided with two convex columns 310 fixedly connected with the diaphragm, the bottom of the spring 33 is sleeved outside the convex columns 310, and the top of the spring 33 is sleeved in the guide sleeves 301 to prevent the spring 33 from inclining.

Further, the central position of the upper surface of the diaphragm 31 is provided with a locking block 311 fixedly connected with the diaphragm, the locking block 311 is provided with a locking screw 35 and a spring washer 350, the top of the valve rod 41 is provided with a threaded hole 410, the top of the valve rod 41 penetrates through the shell 32, the diaphragm 31 and the locking block 311, the locking screw 35 penetrates through the spring washer 350 and the threaded hole 410 and is fixedly locked with the threaded hole 410 through threaded connection, and the spring washer 350 ensures that the locking between the valve rod 41 and the locking block 311 is firmer.

Specifically, the whole formed by the observation chamber 2 and the bump 20 is a hollow structure, the end of the pointer 420 is located inside the bump 20 and points to the scale mark 200, and the bump 20 is made of transparent acrylic material, so that the position of the pointer 420 can be conveniently observed, the position of the valve core 4 can be further known, and the opening condition of the valve can be mastered.

When the pneumatic gate valve convenient for adjusting the flow is used, a worker firstly installs and fixes the pneumatic gate valve in a pipeline; at this time, under the elastic action of the spring 33, the diaphragm 31 is pressed to the bottommost end, the diaphragm 31 drives the valve core 4 to move downwards, the gate block 40 blocks the outlet of the flow outlet pipe 11, and the pointer 420 is located at the bottommost end of the scale mark 200; then the air outlet pipe of the pneumatic device is connected into the air charging hole 320, air is charged between the shell 32 and the diaphragm 31, when the upward force of the air pressure between the shell 32 and the diaphragm 31 to the diaphragm 31 is larger than the elastic potential force of the spring 33, the spring 33 starts to be compressed, the diaphragm 31 moves upwards to drive the valve core 4 fixedly connected with the diaphragm to move upwards, the brake block 40 moves upwards at the moment, the outlet of the flow outlet pipe 11 is opened, the pointer 420 moves upwards, a worker can know the opening degree of the outlet of the flow outlet pipe 11 according to the position of the pointer 420 on the scale 200, further adjust the position of the brake block 40 by adjusting the air pressure between the shell 32 and the diaphragm 31 to control the flow at the flow outlet pipe 11, when the flow reaches a preset value, the air charging is stopped, at the moment, the upward force of the air pressure between the shell 32 and the diaphragm 31 to the diaphragm 31 is equal to the downward elastic potential force of the, the brake block 40 remains stable; the inflation pipe mouth on the inflation hole 320 is disconnected, the gas overflows from the inflation hole 320, the upward force of the air pressure between the shell 32 and the diaphragm 31 to the diaphragm 31 is smaller than the downward elastic potential force of the spring 33 to the diaphragm 31, the diaphragm 31 moves downward to drive the valve core to return to the original position, the outlet of the flow outlet pipe 11 is blocked, and the pneumatic gate valve is closed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pneumatic gate valve convenient to adjust flow size, includes valve body (1), its characterized in that: the valve body (1) both sides are equipped with rather than fixed connection's fluid inlet tube (10) and flow outlet pipe (11) respectively, valve body (1) fluid inlet tube (10) with flow outlet pipe (11) are hollow structure, valve body (1) lateral wall is close to top edge and is equipped with rather than inside first exhaust hole (12) that run through, valve body (1) top is equipped with rather than fixed connection's observation room (2), one side of observation room (2) is equipped with rather than fixed connection's lug (20), be equipped with scale mark (200) on lug (20), observation room (2) top is equipped with air pressure control mechanism (3), air pressure control mechanism (3) include cap (30) at top and casing (32) of bottom, cap (30) with be equipped with diaphragm (31) between casing (32), cap (30) with be equipped with two symmetrical spring (33) between diaphragm (31), the air pressure control valve is characterized in that a second exhaust hole (300) penetrating through the shell cover (30) is formed in the shell cover, an inflation hole (320) penetrating through the shell cover is formed in the shell (32), a valve core (4) is arranged in the valve body (1), the valve core (4) comprises a brake block (40) at the bottom, a valve rod (41) fixedly connected with the brake block (40) is arranged in the middle of the top of the brake block (40), the top of the valve rod (41) extends into the air pressure control mechanism (3), a fixing block (42) fixedly connected with the valve rod is arranged in the observation chamber (2) on the valve rod (41), and a pointer (420) fixedly connected with the fixing block is arranged on one side of the protruding block (20) on the fixing block (42).

2. The pneumatic gate valve facilitating the adjustment of flow volume of claim 1, wherein: the top of the gate block (40) is provided with a sealing gasket (43), a through hole is formed in the sealing gasket (43), and the valve rod (41) penetrates through the through hole.

3. The pneumatic gate valve facilitating the adjustment of flow volume of claim 1, wherein: the shell cover (30), the diaphragm (31) and the shell (32) are locked and fixed through a plurality of bolts and nuts (34).

4. The pneumatic gate valve facilitating the adjustment of flow volume of claim 1, wherein: the lower surface of the shell cover (30) is provided with two guide sleeves (301) fixedly connected with the shell cover, the upper surface of the diaphragm (31) is provided with two convex columns (310) fixedly connected with the diaphragm, the bottom of the spring (33) is sleeved on the outer sides of the convex columns (310), and the top of the spring (33) is sleeved in the guide sleeves (301).

5. The pneumatic gate valve facilitating the adjustment of flow volume of claim 1, wherein: the diaphragm (31) upper surface central point puts and is equipped with latch segment (311) rather than fixed connection, be equipped with locking screw (35) and spring washer (350) on latch segment (311).

6. The pneumatic gate valve facilitating the adjustment of flow volume of claim 5, wherein: the top of the valve rod (41) is provided with a threaded hole (410), the top of the valve rod (41) penetrates through the shell (32), the diaphragm (31) and the locking block (311), and the locking screw (35) penetrates through the spring gasket (350) and the threaded hole (410) and is fixedly locked with the threaded hole (410) through threaded connection.

7. The pneumatic gate valve facilitating the adjustment of flow volume of claim 1, wherein: the observation chamber (2) and the lug (20) form a hollow structure, and the tail end of the pointer (420) is positioned inside the lug (20) and points to the scale mark (200).