Valve suitable for windy and sandy areas

Abstract

The valve comprises a handle, a valve shell, a valve plug, a tension seat and a pressing seat, an upper fixing nut is arranged at the upper end of the handle, an inner threaded column is arranged at the lower end of the middle position of the handle, an outer force guiding seat is arranged on the outer side of the upper end of the inner threaded column, and inner fixing nuts are arranged at the upper ends of the left side and the right side of the outer force guiding seat. Compared with the prior art, the device has the advantages that the movement track of the internal threaded column is kept vertical and stable through the outer force guiding base and the inner force guiding base, the internal threaded column is used for driving the pressing base to move up and down in the vertical direction, and the pressing base can move up and down in the vertical direction; the pressure seat and the tension seat are used for enabling the valve plug and the guide column to generate tension and to be tightly attached to the interior of the inner valve seat, the valve plug is used for controlling communication or separation of the interior of the inflow cavity and the interior of the flow guide cavity, and the sealing flange is used for enabling maintenance personnel to quickly disassemble the valve shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves and relates to a valve suitable for sandstorm areas. Background Art

[0002] The valve is a control component in the pipeline fluid delivery system. It can change the passage section and the flow direction of the medium, and has the functions of diversion, cut-off, regulation, throttling, check, diversion or overflow pressure relief. Manual valves are usually operated by hand with tools such as handwheels, handles, levers, sprockets, etc. The valve movement is operated by manpower. In the sandy area, the environmental conditions faced by the valve are harsh. In this environment, sand is very likely to become the main factor affecting the operation of the valve. What's more serious is that if the valve cannot be completely closed, the consequences are varied and most of them are negative.

[0003] When the valve cannot be completely closed, sand and dust have the opportunity to enter the valve. Sand particles may accumulate in the gaps and internal spaces of the valve, affecting the normal operation of the valve, and may even cause the valve to get stuck. The continuous intrusion of sand and dust will cause wear and damage to the parts inside the valve. Over time, this may cause the performance of the valve to deteriorate or even fail.

[0004] The function of a valve is to control the flow of fluid. If the interior is not completely closed, the flow control function of the valve will be affected, which may cause fluid leakage or unstable flow. For some industrial uses, such as steam or hot water supply systems, incomplete closure of the valve will lead to unnecessary waste of energy. In addition, a loose valve may cause the leakage of toxic or harmful substances, causing pollution to the environment.

[0005] In some critical industrial processes, incomplete closure of valves may lead to unexpected process interruptions or accidents. For example, the leakage of toxic gases or the loss of control of high-pressure systems may require more frequent maintenance and inspections due to various problems caused by incomplete closure of valves. This not only increases operating costs, but may also affect the stability of the entire system.

[0006] In summary, the inability of a valve to ensure complete internal closure in a sandstorm zone will cause a series of problems, ranging from simple equipment performance issues to serious safety accidents. Therefore, there is an urgent need for a valve suitable for sandstorm zones to solve the above problems. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model aims to provide a valve suitable for sandstorm areas to solve the problems raised in the above-mentioned background technology.

[0008] The utility model is realized by the following technical scheme: a valve suitable for sandy areas, comprising: a handle and a pressure seat, wherein an upper fixing nut is arranged at the upper end of the handle, and an internal thread column is arranged at the lower end of the middle position of the handle;

[0009] An external force guide seat is provided on the outer side of the upper end of the internal thread column, and internal fixing nuts are provided on the upper ends of the left and right sides of the external force guide seat. A group of force guide columns is provided at the lower end of each group of internal fixing nuts, and an internal force guide seat is provided on the outer side of the lower end of the internal thread column. Sealing flanges are provided at the lower ends of the two groups of force guide columns;

[0010] A threaded hole is provided in the middle of the handle, and the inside of the threaded hole is threadedly connected to the internal threaded column and is fixed by an upper fixing nut. The internal threaded column passes through the outer force guiding seat and the inner force guiding seat, and the moving trajectory of the internal threaded column can be kept vertically stable through the outer force guiding seat and the inner force guiding seat.

[0011] As a preferred embodiment, a group of internal threaded holes are provided inside the outer force guiding seat and the inner force guiding seat, and the internal threaded columns respectively penetrate the internal threaded holes inside the outer force guiding seat and the inner force guiding seat, and are limitedly connected, so that the pressure seat can be driven to move up and down in the vertical direction by using the internal threaded columns.

[0012] As a preferred embodiment, a valve housing is provided at the lower end of the sealing flange, a group of connecting flanges are provided on both sides of the valve housing, an outlet cavity is provided inside the right connecting flange, a guide cavity is provided at the upper left end of the outlet cavity, and an inner valve seat is provided at the lower left end of the guide cavity.

[0013] As a preferred embodiment, an inlet cavity is provided at the lower end of the inner valve seat, a valve plug is provided on the inner side of the inner valve seat, a guide column is provided at the upper end of the valve plug, a tension seat is provided at the upper end of the guide column, a pressure seat is provided at the upper end of the tension seat, and a limit shell is provided on the outer side of the pressure seat.

[0014] As a preferred embodiment, an inner hole is provided in the middle position of the sealing flange, and the inner hole is fixed to the limit shell by a threaded connection. The interior of the limit shell is a hollow structure, and the inner side of the limit shell is engaged with the pressure seat and the tension seat. By using the pressure seat and the tension seat, the valve plug and the guide column can generate tension and fit tightly with the inside of the inner valve seat.

[0015] As a preferred embodiment, the tension seat is a spring damping column, the tension seat is connected and fixed to the guide column, the guide column is connected and fixed to the valve plug, the lower end of the valve plug is sealed and embedded with the inner side of the inner valve seat, and the valve plug is made of a rubber material, which can control the connection or separation of the inside of the inlet chamber and the inside of the guide chamber by using the valve plug.

[0016] As a preferred embodiment, the interior of the guide chamber and the inlet chamber are connected to each other through the interior of the inner valve seat, the sealing flange and the upper end of the valve housing are connected and fixed by several groups of bolts, and the lower end of the internal threaded column is connected and fixed to the upper end of the pressure seat, so that maintenance personnel can quickly disassemble the valve housing by using the sealing flange.

[0017] After adopting the above technical scheme, the beneficial effects of the utility model are: by using the external force-guiding seat and the internal force-guiding seat to keep the moving trajectory of the internal threaded column vertically stable, by using the internal threaded column to drive the pressure seat to move up and down in the vertical direction, by using the pressure seat and the tension seat to make the valve plug and the guide column generate tension and fit tightly with the inside of the inner valve seat, by using the valve plug to control the connection or separation of the inside of the inlet chamber and the inside of the guide chamber, by using the sealing flange to enable maintenance personnel to quickly disassemble the valve housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a front view structural schematic diagram of a valve suitable for use in sandy areas according to the utility model;

[0020] Figure 2 This is a right side structural schematic diagram of a valve suitable for use in sandy areas according to the utility model;

[0021] Figure 3 This is a front view structural diagram of the interior of a valve housing in a valve suitable for use in sandy areas according to the utility model;

[0022] Figure 4 This is a front view structural diagram of a valve medium pressure seat, a tension seat and a valve plug suitable for use in sandy areas according to the utility model;

[0023] In the figure: 100-handle, 110-upper fixing nut, 120-inner threaded column, 130-external force guide seat, 140-inner fixing nut, 150-force guide column, 160-inner force guide seat, 170-sealing flange, 180-valve housing, 190-connecting flange, 200-outlet cavity, 210-flow guide cavity, 220-inlet cavity, 230-inner valve seat, 240-valve plug, 250-guide column, 260-limiting shell, 270-tension seat, 280-pressure seat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 A valve suitable for use in sandy areas, comprising: a handle 100, a valve housing 180, a valve plug 240, a tension seat 270 and a pressure seat 280, an upper fixing nut 110 is provided at the upper end of the handle 100, and an internal threaded column 120 is provided at the lower end of the middle position of the handle 100;

[0026] An external force guide seat 130 is provided on the outer side of the upper end of the internal thread column 120, and internal fixing nuts 140 are provided on the upper ends of the left and right sides of the external force guide seat 130. A group of force guide columns 150 are provided at the lower end of each group of internal fixing nuts 140, and an internal force guide seat 160 is provided on the outer side of the lower end of the internal thread column 120. A sealing flange 170 is provided at the lower ends of the two groups of force guide columns 150.

[0027] A threaded hole is provided in the middle of the handle 100, and the inside of the threaded hole is threadedly connected to the internal threaded column 120 and is fixed by the upper fixing nut 110. The internal threaded column 120 passes through the external force guiding seat 130 and the internal force guiding seat 160, and the moving trajectory of the internal threaded column 120 can be kept vertically stable through the external force guiding seat 130 and the internal force guiding seat 160.

[0028] A group of internal threaded holes are provided inside the outer force guiding seat 130 and the inner force guiding seat 160. The internal threaded column 120 passes through the internal threaded holes inside the outer force guiding seat 130 and the inner force guiding seat 160 respectively, and is limitedly connected. The internal threaded column 120 can be used to drive the pressure seat 280 to move up and down in the vertical direction.

[0029] A valve housing 180 is provided at the lower end of the sealing flange 170, and a group of connecting flanges 190 are provided on both sides of the valve housing 180. An outlet cavity 200 is provided inside the right connecting flange 190, a guide cavity 210 is provided at the upper left end of the outlet cavity 200, and an inner valve seat 230 is provided at the lower left end of the guide cavity 210.

[0030] An inlet cavity 220 is provided at the lower end of the inner valve seat 230, a valve plug 240 is provided inside the inner valve seat 230, a guide column 250 is provided at the upper end of the valve plug 240, a tension seat 270 is provided at the upper end of the guide column 250, a pressure seat 280 is provided at the upper end of the tension seat 270, and a limit shell 260 is provided outside the pressure seat 280.

[0031] An inner hole is provided in the middle position of the sealing flange 170, and the inner hole is fixed to the limit shell 260 by threaded connection. The interior of the limit shell 260 is a hollow structure, and the inner side of the limit shell 260 is engaged with the pressure seat 280 and the tension seat 270. By using the pressure seat 280 and the tension seat 270, the valve plug 240 and the guide column 250 can generate tension and fit tightly to the inside of the inner valve seat 230.

[0032] See also Figure 1-Figure 4 As the first embodiment of the utility model: In order to solve the problem that sand may accumulate in the various gaps and internal spaces of the valve, affecting the normal operation of the valve, and even causing the valve to get stuck, the continuous intrusion of wind and sand will cause wear and damage to the internal parts of the valve. In the sandy area, there is a lot of sand and dust in the air, and the sand and dust will adhere to the outside of the valve shell 180. When the staff needs to control the valve, they rotate the handle 100, and the handle 100 drives the internal thread column 120 to rotate. Since a group of internal thread holes are provided inside the external force guide seat 130 and the internal force guide seat 160, the internal thread The column 120 passes through the internal threaded holes inside the outer force guiding seat 130 and the inner force guiding seat 160 respectively, and is limitedly connected, so that wind and sand cannot enter the interior of the valve housing 180 through the internal threaded column 120. When the internal threaded column 120 rotates, the internal threaded column 120 drives the pressure seat 280, the tension seat 270, the guide column 250 and the valve plug 240 to move downward, and the valve plug 240 is sealed and connected with the inner valve seat 230, thereby separating the guide chamber 210 and the inlet chamber 220. When the above process is reversed, the interior of the guide chamber 210 and the interior of the inlet chamber 220 can be connected to each other.

[0033] The tension seat 270 is a spring damping column, which is connected and fixed to the guide column 250, and the guide column 250 is connected and fixed to the valve plug 240. The lower end of the valve plug 240 is sealed and embedded in the inner side of the inner valve seat 230. The valve plug 240 is made of a rubber material and can control the connection or separation between the inside of the inlet chamber 220 and the inside of the guide chamber 210 by using the valve plug 240.

[0034] The interior of the guide chamber 210 and the inlet chamber 220 are interconnected through the interior of the inner valve seat 230. The sealing flange 170 and the upper end of the valve housing 180 are connected and fixed by a plurality of sets of bolts. The lower end of the internal threaded column 120 is connected and fixed to the upper end of the pressure seat 280. The sealing flange 170 can be used to enable maintenance personnel to quickly disassemble the valve housing 180.

[0035] See also Figure 1-Figure 4, as the second embodiment of the utility model: based on the description in the above embodiment, further, since the tension seat 270 is a spring damping column, the tension seat 270 is connected and fixed to the guide column 250, when the lower end of the valve plug 240 and the inner valve seat 230 are sealed and engaged with each other, the tension seat 270 can store energy following the downward pressure potential energy of the internal threaded column 120, and always maintain tension on the valve plug 240 and the inner valve seat 230 to ensure the sealing inside the valve housing 180. At the same time, in conjunction with the sealing flange 170 and the two sets of connecting flanges 190, when used in a sandy area, it can effectively ensure the sealing effect of the inside of the valve housing 180 and the top of the valve housing 180 to prevent sand from entering the inside of the valve housing 180 and affecting the operation of the utility model.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve suitable for use in sandy areas, comprising: A handle (100), a valve housing (180), a valve plug (240), a tension seat (270) and a pressure seat (280), characterized in that: an upper fixing nut (110) is provided at the upper end of the handle (100), and an internal threaded column (120) is provided at the lower end of the middle position of the handle (100); An external force guide seat (130) is provided on the outer side of the upper end of the internal thread column (120), internal fixing nuts (140) are provided on the upper ends of the left and right sides of the external force guide seat (130), a group of force guide columns (150) are provided on the lower end of each group of internal fixing nuts (140), an internal force guide seat (160) is provided on the outer side of the lower end of the internal thread column (120), and sealing flanges (170) are provided on the lower ends of the two groups of force guide columns (150); A threaded hole is provided in the middle of the handle (100), the interior of the threaded hole is threadedly connected to an internal threaded column (120) and is fixed in position by an upper fixing nut (110), and the internal threaded column (120) passes through the outer force guiding seat (130) and the inner force guiding seat (160).

2. A valve suitable for use in sandy areas according to claim 1, characterized in that: A group of internal threaded holes are provided inside the outer force guiding seat (130) and the inner force guiding seat (160), and the internal threaded column (120) respectively passes through the internal threaded holes inside the outer force guiding seat (130) and the inner force guiding seat (160), and is connected in a limiting manner.

3. A valve suitable for use in sandy areas according to claim 1, characterized in that: A valve housing (180) is provided at the lower end of the sealing flange (170), and a group of connecting flanges (190) are provided on both the left and right sides of the valve housing (180). An outlet cavity (200) is provided inside the right connecting flange (190), a guide cavity (210) is provided at the upper left end of the outlet cavity (200), and an inner valve seat (230) is provided at the lower left end of the guide cavity (210).

4. A valve suitable for use in sandy areas according to claim 3, characterized in that: The lower end of the inner valve seat (230) is provided with an inlet cavity (220), the inner side of the inner valve seat (230) is provided with a valve plug (240), the upper end of the valve plug (240) is provided with a guide column (250), the upper end of the guide column (250) is provided with a tension seat (270), the upper end of the tension seat (270) is provided with a pressure seat (280), and the outer side of the pressure seat (280) is provided with a limiting shell (260).

5. A valve suitable for use in sandy areas according to claim 3, characterized in that: An inner hole is provided in the middle of the sealing flange (170), and the inner hole is fixed to the limiting shell (260) by threaded connection. The inside of the limiting shell (260) is a hollow structure, and the inner side of the limiting shell (260) is engaged with the pressure seat (280) and the tension seat (270).

6. A valve suitable for use in sandy areas according to claim 5, characterized in that: The tension seat (270) is a spring damping column, the tension seat (270) is connected and fixed to the guide column (250), the guide column (250) is connected and fixed to the valve plug (240), the lower end of the valve plug (240) is sealed and embedded with the inner side of the inner valve seat (230), and the valve plug (240) is made of a rubber material.

7. The valve suitable for use in sandy areas according to claim 3, characterized in that: The interior of the flow guide chamber (210) and the inlet chamber (220) are connected to each other through the interior of the inner valve seat (230); the sealing flange (170) and the upper end of the valve housing (180) are connected and fixed by a plurality of groups of bolts; and the lower end of the internal threaded column (120) is connected and fixed to the upper end of the pressure seat (280).

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