A bellows stop valve with automatic cleaning sealing surface

Abstract

The utility model discloses a bellows stop valve with an automatic cleaning sealing surface, comprising a bellows stop valve sealing structure, a base cleaning component fixed inside the bellows stop valve sealing structure and used for cleaning the base, a bellows stop valve sealing structure connected to a self-cleaning filter component on the left side and used for cleaning impurities, the bellows stop valve sealing structure comprising a valve body, a sealing plug fixed on the lower side of a valve stem arranged in the valve body, an auxiliary sealing component fixed on the outer wall of the sealing plug and used for auxiliary sealing of a water inlet. The bellows stop valve with an automatic cleaning sealing surface has a small driving motor in the valve body driving a moving scraper plate to automatically clean the bottom of the valve body, and discharges the material through a water outlet pipe to avoid accumulation of impurities, and large particles of impurities are filtered with the assistance of two sets of filter screens, and the filtered impurities are precipitated in a precipitation tank, a second sealing cover is rotated and the impurities are processed, and there is also no need to disassemble and clean the filter screen, and the filter screen is automatically cleaned with the assistance of a double-headed motor on the filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows stop valves, in particular to a bellows stop valve with an automatic cleaning sealing surface. Background Art

[0002] The opening and closing part of the bellows gate valve is a plug-shaped valve disc, and the sealing surface is a plane or a cone. The valve disc moves linearly along the center line of the fluid. It is found that a bellows stop valve in the prior art, such as the typical one with publication number CN103883739A, has the characteristics of simple structure and convenient operation. The bellows stop valve adopts a double sealing structural design and a bellows sealing structure to solve the defects of previous products, but there are still some problems, such as the fluid entering the bellows gate valve is not filtered for impurities, the screen after filtration needs to be disassembled and cleaned, and impurities are easily precipitated at the bottom of the bellows gate valve. The existing bellows gate valve can only be disassembled and cleaned manually, which is inconvenient to use. Utility Model Content

[0003] The utility model aims to provide a bellows stop valve with an automatic cleaning sealing surface to solve the problems raised in the above-mentioned background technology that, if the fluid entering the bellows gate valve is not filtered for impurities, the screen after filtration needs to be disassembled and cleaned, and impurities are easily deposited at the bottom of the bellows gate valve, and the existing bellows gate valve can only be disassembled and cleaned manually, which is inconvenient to use.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bellows stop valve with an automatically cleaning sealing surface, comprising a bellows stop valve sealing structure, a base cleaning component fixed inside the bellows stop valve sealing structure and used to clean the base, the left side of the bellows stop valve sealing structure is connected to a self-cleaning filter component and is used to clean impurities, the bellows stop valve sealing structure comprises a valve body, a sealing plug fixed on the lower side of a valve stem arranged in the valve body, an auxiliary sealing component fixed to the outer wall of the sealing plug and used to assist in sealing a water inlet.

[0005] Preferably, the auxiliary sealing assembly comprises a fixing plate, and the fixing plate is telescopically adjusted to adjust the position of the rubber sealing member through the first spring shaft.

[0006] By adopting the above technical solution, the water inlet is auxiliary sealed by setting the auxiliary sealing component.

[0007] Preferably, the base cleaning assembly includes a water outlet pipe, and the first sealing cover is disassembled and installed at the lower side of the water outlet pipe. A motor fixed at the lower side of the interior of the valve body drives the cleaning assembly to rotate and automatically clean the bottom of the valve body.

[0008] Preferably, the cleaning assembly comprises a rotating shaft, a connecting rod is fixed on the rotating shaft, and the position of the scraper plate is adjusted by telescopic adjustment of a second spring shaft on the connecting rod.

[0009] By adopting the above technical solution, the bottom of the valve body is assisted to be cleaned by the scraper plate.

[0010] Preferably, the self-cleaning filter assembly includes a water pipe, the lower side of the water pipe passes through the sedimentation tank, the lower side of the sedimentation tank is sealed and connected to the second sealing cover, the inner thread of the water pipe is connected to the filter screen, and the filter screen is driven by a motor to rotate the cleaning brush on the fixed rod and automatically clean the surface of the filter screen.

[0011] By adopting the above technical solution, impurities are stored by setting up a sedimentation tank.

[0012] Preferably, the filter screens are provided in two groups, and the density of the two groups of filter screens is different.

[0013] By adopting the above technical solution, impurities in the fluid are processed by setting a filter.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the bellows stop valve with automatic cleaning sealing surface

[0015] (1) A base cleaning component and a self-cleaning filter component are provided. A small drive motor in the valve body drives a dynamic scraper plate to automatically clean the bottom of the valve body and discharge it through the outlet pipe to avoid impurities accumulation. At the same time, there is no need to disassemble the bellows stop valve for cleaning. The operation is simple and convenient. With the assistance of two sets of filter screens, large particles of impurities are filtered. The filtered impurities are precipitated in the sedimentation tank. The second sealing cover is rotated and the impurities are processed. There is also no need to disassemble and clean. With the assistance of the double-headed motor on the filter screen, the filter screen is automatically cleaned to ensure the cleaning quality and avoid clogging of the filter screen, which affects the filtering quality.

[0016] (2) An auxiliary sealing assembly is provided. After the sealing plug seals the water inlet, the rubber sealing member on the outside of the sealing plug, with the assistance of the first spring shaft, always assists in double sealing the connection between the water inlet and the sealing plug, thereby increasing the practicality of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the base cleaning component and the self-cleaning filter component of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the self-cleaning filter assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the base cleaning component of the utility model.

[0021] In the figure: 1. sealing structure of bellows stop valve; 11. valve body; 12. valve stem; 13. sealing plug; 14. auxiliary sealing assembly; 141. fixing plate; 142. first spring shaft; 143. rubber seal; 15. water inlet; 2. base cleaning assembly; 21. water outlet pipe; 22. first sealing cover; 23. cleaning assembly; 231. rotating shaft; 232. connecting rod; 233. second spring shaft; 234. scraper plate; 3. self-cleaning filter assembly; 31. water pipe; 32. sedimentation tank; 33. second sealing cover; 34. filter screen; 35. fixing rod; 36. cleaning brush. DETAILED DESCRIPTION

[0022] 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 in 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.

[0023] See also Figure 1-4 The utility model provides a technical solution: a bellows stop valve with automatic cleaning sealing surface. Figure 1 and Figure 2 As shown, it includes a bellows stop valve sealing structure 1, which includes a valve body 11, a sealing plug 13 fixed on the lower side of a valve stem 12 arranged in the valve body 11, an auxiliary sealing component 14 fixed on the outer wall of the sealing plug 13 and used to assist in sealing a water inlet 15, wherein flanges are fixed on both sides of the bellows stop valve sealing structure 1, and the flange on the left side of the bellows stop valve sealing structure 1 is threadedly connected to a self-cleaning filter component 3 by bolts, so as to facilitate the disassembly and installation of the self-cleaning filter component 3 at a later stage.

[0024] Preferably, the auxiliary sealing assembly 14 comprises a fixing plate 141, and the fixing plate 141 is telescopically adjusted to adjust the position of the rubber sealing member 143 through the first spring shaft 142, wherein the fixing plate 141 is arranged in an annular shape;

[0025] In the above scheme, a plurality of groups of first spring shafts 142 are evenly distributed on the fixed plate 141, and the rubber seal 143 includes an annular connecting plate and a rubber sealing ring. The rubber seal 143 is slidably connected to the fixed plate 141. The rubber seal 143 assists in sealing the connection between the water inlet 15 and the sealing plug 13 with the assistance of the elastic force of the first spring shaft 142 itself, thereby avoiding water overflow at the connection between the water inlet 15 and the sealing plug 13 and affecting the sealing effect.

[0026] like Figure 1 , Figure 2 and Figure 4As shown, a base cleaning assembly 2 is fixed inside the sealing structure 1 of the bellows stop valve and is used to clean the base, wherein the base cleaning assembly 2 includes a water outlet pipe 21, a first sealing cover 22 is disassembled and installed on the lower side of the water outlet pipe 21, a motor fixed on the lower side of the valve body 11 drives the cleaning assembly 23 to rotate and automatically clean the bottom of the valve body 11, a rubber sealing ring is embedded in the first sealing cover 22, and the setting of the rubber sealing ring in the first sealing cover 22 avoids water leakage, which affects the normal use of the bellows stop valve;

[0027] Preferably, the cleaning assembly 23 includes a rotating shaft 231, a connecting rod 232 is fixed on the rotating shaft 231, and the position of the scraper plate 234 is adjusted by telescopically adjusting the second spring shaft 233 on the connecting rod 232, wherein six groups of second spring shafts 233 are evenly distributed on the connecting rod 232, and under the action of the elastic force of the second spring shaft 233 itself, the scraper plate 234 is always in contact with the bottom of the valve body 11 to ensure the cleaning quality;

[0028] In the above scheme, the motor in the valve body 11 drives the rotating shaft 231 to rotate, and the rotating shaft 231 drives the scraper plate 234 to rotate through the connecting rod 232 and the second spring shaft 233 to clean the inner wall of the valve body 11, and the cleaned waste water is discharged through the outlet pipe 21.

[0029] like Figure 1 and Figure 3 As shown, the self-cleaning filter assembly 3 includes a water pipe 31, the lower side of the water pipe 31 passes through the sedimentation tank 32, the lower side of the sedimentation tank 32 is sealed and connected to the second sealing cover 33, the inner thread of the water pipe 31 is connected to the filter screen 34, the filter screen 34 is driven by a motor to drive the cleaning brush 36 on the fixed rod 35 to rotate and automatically clean the surface of the filter screen 34, wherein the sedimentation tank 32 is provided with three groups, and the second sealing covers 33 disassembled and installed at the lower side of the three groups of sedimentation tanks 32 are all embedded with sealing gaskets to prevent water overflow;

[0030] Preferably, two groups of filter screens 34 are provided, and the density of the two groups of filter screens 34 is different. The two groups of filter screens 34 filter the impurities in the fluid in turn to prevent large particles of impurities from entering the valve body 11 and increasing the difficulty of later cleaning;

[0031] Specifically, the motor fixed on the filter 34 is a double-headed motor, which is a prior art;

[0032] In the above scheme, with the assistance of the double-headed motor on the filter 34, the cleaning brush 36 on the fixed rod 35 is driven to rotate and automatically clean the filter 34, and the impurities are precipitated in the sedimentation tank 32. The second sealing cover 33 is rotated, and the staff manually handles the impurities in the sedimentation tank 32. There is no need to disassemble the self-cleaning filter assembly 3 as a whole, which increases practicality.

[0033] Working principle: When using the bellows stop valve with the automatic cleaning sealing surface, the external power supply is turned on, the impurities are processed with the assistance of the self-cleaning filter component 3, the water inlet 15 is double-sealed with the assistance of the bellows stop valve sealing structure 1, and the base of the valve body 11 is automatically cleaned with the assistance of the base cleaning component 2.

[0034] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bellows stop valve with an automatic cleaning sealing surface, comprising a bellows stop valve sealing structure (1), a base cleaning component (2) fixed inside the bellows stop valve sealing structure (1) and used for cleaning the base, and a self-cleaning filter component (3) connected to the left side of the bellows stop valve sealing structure (1) and used for cleaning impurities, characterized in that: The bellows stop valve sealing structure (1) comprises a valve body (11), a sealing plug (13) fixed on the lower side of a valve stem (12) arranged in the valve body (11), and an auxiliary sealing component (14) fixed on the outer wall of the sealing plug (13) and used for auxiliary sealing of a water inlet (15).

2. The bellows stop valve with automatic cleaning sealing surface according to claim 1, characterized in that: The auxiliary sealing assembly (14) comprises a fixing plate (141), and the fixing plate (141) is telescopically adjusted to adjust the position of the rubber sealing member (143) via a first spring shaft (142).

3. The bellows stop valve with automatic cleaning sealing surface according to claim 1, characterized in that: The base cleaning assembly (2) comprises a water outlet pipe (21), a first sealing cover (22) is disassembled and installed on the lower side of the water outlet pipe (21), and a motor-driven cleaning assembly (23) fixed on the lower side of the valve body (11) rotates and automatically cleans the bottom of the valve body (11).

4. The bellows stop valve with automatic cleaning sealing surface according to claim 3, characterized in that: The cleaning assembly (23) comprises a rotating shaft (231), a connecting rod (232) is fixed on the rotating shaft (231), and the position of a scraper plate (234) is adjusted by telescoping on the connecting rod (232) via a second spring shaft (233).

5. The bellows stop valve with automatic cleaning sealing surface according to claim 1, characterized in that: The self-cleaning filter assembly (3) comprises a water pipe (31), the lower side of the water pipe (31) passes through a sedimentation tank (32), the lower side of the sedimentation tank (32) is sealed and connected to a second sealing cover (33), the inner thread of the water pipe (31) is connected to a filter screen (34), and the filter screen (34) is driven by a motor to rotate a cleaning brush (36) on a fixed rod (35) and automatically clean the surface of the filter screen (34).

6. The bellows stop valve with automatic cleaning sealing surface according to claim 5, characterized in that: The filter screens (34) are provided in two groups, and the two groups of filter screens (34) have different densities.

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