CN205207714U - Valve device - Google Patents

Abstract

The utility model relates to a valve device, which comprises a valve body, the valve body upper end is equipped with sealed lid, be equipped with a plurality of inlet opening on the valve body upper end lateral wall along the circumferencial direction, the lower extreme middle part is equipped with the apopore, the valve body middle part is equipped with the limbers, and the limbers is the big little round platform column structure of lower extreme diameter of upper end diameter, the inside case that suits rather than the structure that is equipped with of limbers, sealed lid central point puts and is equipped with the valve rod that is connected with the case, the valve rod upper end is equipped with turning handle, be equipped with sealed the pad between the contact. The utility model discloses realize the rotation of valve rod through rotating twist grip when using, drive the upper and lower removal of plug and realize opening and closing of valve, convenient operation like this, convenient to overhaul, the leakproofness is good simultaneously.

Description

a valve device

technical field

The utility model relates to the technical field of hardware, in particular to a valve device.

Background technique

The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems range from the simplest cut-off valves to various valves used in extremely complex automatic control systems, with a wide variety of varieties and specifications. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome-molybdenum steel valves, chrome-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-standard custom-made valves, etc. .

The control of the valve can adopt a variety of transmission methods, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic, electro-hydraulic, electro-hydraulic, gas-hydraulic, spur gear, bevel gear drive, etc.; can be driven by pressure, temperature Under the action of sensing signals in other forms, it acts according to predetermined requirements, or simply opens or closes without relying on sensing signals. The valve relies on driving or automatic mechanism to make the opening and closing parts lift, slide, swing or rotate. Movement, thereby changing the size of its flow channel area to realize its control function. Cut-off type: such as gate valve, globe valve, plug valve, ball valve, butterfly valve, needle valve, diaphragm valve, etc. Cut-off valves are also called closed-circuit valves and globe valves, and their function is to connect or cut off the medium in the pipeline.

Check valve, also known as one-way valve or non-return valve, check valve is a kind of automatic valve, its function is to prevent the medium in the pipeline from flowing backward, preventing the pump and drive motor from reversing, and the leakage of the container medium . The bottom valve of the water pump suction valve also belongs to the check valve category.

Application categories: such as pigging valves, vent valves, blowdown valves, exhaust valves, filters, etc. The exhaust valve is an indispensable auxiliary component in the pipeline system, and is widely used in boilers, air conditioners, oil and gas, water supply and drainage pipelines. It is often installed at commanding heights or elbows to remove excess gas in the pipeline, improve the efficiency of pipeline use and reduce energy consumption.

The existing valve has complex structure, is not easy to maintain, and has poor sealing effect, which affects the service life of the valve.

Utility model content

The purpose of the utility model is to provide a valve device in order to overcome the deficiencies of the prior art.

The utility model is realized through the following technical solutions:

A valve device, comprising a valve body, the upper end of the valve body is provided with a sealing cover, the side wall of the upper end of the valve body is provided with several water inlet holes along the circumferential direction, the middle part of the lower end is provided with a water outlet hole, and the middle part of the valve body is A water hole is provided, and the water hole is in the shape of a circular platform with a large diameter at the upper end and a small diameter at the lower end. The inside of the water hole is provided with a valve core suitable for its structure, and the center of the sealing cover is provided with a valve core connected to the valve core The valve stem is provided with a rotating handle at the upper end of the valve stem, and a sealing gasket is provided between the contact surface of the valve core and the valve body.

As a preferred technical solution of the utility model, the water inlet hole and the water outlet hole are circular structures.

As a preferred technical solution of the present invention, the valve stem and the sealing cover are connected by threads.

As a preferred technical solution of the utility model, the sealing gasket is pasted on the side of the valve core.

Compared with the existing technology, the beneficial effect of the utility model is: the utility model is simple in structure and reasonable in design. The utility model realizes the rotation of the valve stem by turning the rotating handle when in use, and drives the valve core to move up and down. Realize the opening and closing of the valve, which is convenient for operation, convenient for maintenance, and good sealing performance at the same time.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among the figure: 1. valve body; 101. water inlet; 102. water outlet; 103. water hole; 2. sealing cover; 3. valve core; 4. rotating handle; 5. rotating handle;

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Fig. 1, Fig. 1 is the structural representation of the utility model.

A valve device, comprising a valve body 1, the upper end of the valve body 1 is provided with a sealing cover 2, the upper side wall of the valve body 1 is provided with several water inlet holes 101 along the circumferential direction, and the middle part of the lower end is provided with a water outlet hole 102 , wherein the water inlet hole 101 and the water outlet hole 102 are circular structures, which can facilitate the discharge of water. The middle part of the valve body 1 is provided with a water hole 103, and the water hole 103 is a circular platform with a large diameter at the upper end and a small diameter at the lower end. Shaped structure, this structure is adapted to the structure of the valve core 3, the inside of the water hole 103 is provided with a valve core 3 adapted to its structure, and the center of the sealing cover 2 is provided with a valve stem connected to the valve core 3 4, wherein the valve stem 4 is threadedly connected to the sealing cover 2, so that the rotation of the valve stem 4 can be realized, and the up and down movement of the valve core 3 can be realized conveniently.

The upper end of the valve stem 4 is provided with a rotating handle 5, and a sealing gasket 6 is arranged between the contact surface of the valve core 3 and the valve body 1, wherein the sealing gasket 6 is pasted on the side of the valve core 3, wherein the sealing gasket 6 The thickness is 2mm ~ 5mm, which can play a better seal.

Its specific implementation method is as follows: when in use, the rotation of the valve rod 4 is realized by turning the rotary handle 5, and the valve core 3 is driven to move up and down to realize the opening and closing of the valve, which is convenient for operation and maintenance, and has good sealing performance.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (4)

1. a valving, comprise valve body (1), described valve body (1) upper end is provided with sealing cover (2), it is characterized in that: described valve body (1) upper end sidewall is along the circumferential direction provided with several water inlets (101), osculum (102) is provided with in the middle part of lower end, described valve body (1) middle part is provided with water port (103), water port (103) the round table-like structure that large lower end diameter is little in upper end diameter, described water port (103) inside is provided with the spool (3) adapted with its structure, described sealing cover (2) central position is provided with the valve rod (4) be connected with spool (3), described valve rod (4) upper end is provided with handle with sleeve (5), sealing gasket (6) is provided with between the surface of contact of described spool (3) and valve body (1).

2. a kind of valving according to claim 1, is characterized in that: described water inlet (101), osculum (102) are round structure.

3. a kind of valving according to claim 1, is characterized in that: for being threaded between described valve rod (4) with sealing cover (2).

4. a kind of valving according to claim 1, is characterized in that: described sealing gasket (6) is pasted onto on spool (3) side.