CN220668458U

CN220668458U - Diaphragm valve convenient to overhaul

Info

Publication number: CN220668458U
Application number: CN202321451192.9U
Authority: CN
Inventors: 杨乐华; 仲济强; 李玉祥; 杨福荣
Original assignee: Shanghai Youli Water Pipe Co ltd
Current assignee: Shanghai Youli Water Pipe Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2024-03-26
Anticipated expiration: 2033-06-08

Abstract

The utility model discloses a diaphragm valve convenient to overhaul, and relates to the technical field of diaphragm valves. The diaphragm valve comprises a diaphragm valve body and a screw rod, wherein the screw rod is inserted into the diaphragm valve body and is connected with the diaphragm valve body through threads. The utility model provides a diaphragm valve convenient to overhaul, which is characterized in that a handle is rotated, a pressurizing piston can be driven to move up and down through parts such as a guide rail, a sliding block and the like, the pressurizing piston moves upwards, outside air can be sucked into the pressurizing piston, the pressurizing piston moves downwards, air in a pressurizing tank can be fed into a storage pipe, the air extrudes a lubricating piston, the lubricating piston moves to one side of a cavity, lubricant in the lubricating piston is pushed into the cavity and is fed into a lubricating hole through the cavity and a liquid guide hole, and the screw thread part connected with a diaphragm valve body is lubricated, so that screw abrasion is avoided, the service life of the screw is prolonged, the size of a valve body channel is regulated, the screw is convenient to detach, and the inside of the diaphragm valve body is convenient to overhaul.

Description

Diaphragm valve convenient to overhaul

Technical Field

The utility model relates to the technical field of diaphragm valves, in particular to a diaphragm valve convenient to overhaul.

Background

Application number: 2022202129021 has disclosed a high lining rubber diaphragm valve of corrosion resistance, through the both ends in diaphragm valve storehouse all are provided with the valve pipe, the upper end in diaphragm valve storehouse is provided with the valve inner shell, the inside top of valve inner shell is provided with the latch lever, the shell and the valve inner shell draw-in groove fixed connection of latch lever, the top of valve inner shell is provided with the sealing ring, be provided with the sealing washer between valve inner shell and the sealing ring, all be provided with the sealing washer gusset plate around the sealing washer, the shell lower extreme of latch lever is provided with the internal thread cover, the lower extreme of latch lever is provided with telescopic threaded rod, telescopic threaded rod and the inside draw-in groove sliding connection of latch lever, telescopic threaded rod's lower extreme is provided with the sealing head, the lower extreme of sealing head is provided with corrosion-resistant lining rubber diaphragm.

But above-mentioned diaphragm valve needs frequent rotation threaded rod in the in-process of using, and the wearing and tearing between threaded rod and the valve body are great, and the protective layer on the threaded rod is very easy damaged, and the threaded rod is very easy corrosion, leads to the life of threaded rod to reduce by a wide margin, and the threaded rod corrosion is comparatively laborious when adjusting the passageway size in the diaphragm valve simultaneously.

Disclosure of Invention

The utility model provides a diaphragm valve convenient to overhaul, and solves the technical problems set forth in the background art.

In order to solve the technical problems, the membrane valve convenient to overhaul comprises a membrane valve body and a screw, wherein the screw is inserted into the membrane valve body and is in threaded connection with the membrane valve body, a handle is arranged at the top of the screw, a plurality of lubrication holes are formed in the position, corresponding to the screw, of the membrane valve body, each lubrication hole is connected with a liquid guide hole, the liquid guide holes are connected with a cavity, the cavity is formed in a lubricating piece, the lubricating piece is fixedly arranged on the membrane valve body, a storage tube is inserted into the lubricating piece, lubricant is stored in the storage tube, the storage tube is communicated with the cavity, a lubrication piston is arranged in the storage tube, the lubrication piston and the inner wall of the storage tube can slide relatively, and the lubrication piston is connected with a spring;

the storage tube is connected with the pressurizing tube, the other end of the pressurizing tube is connected with the pressurizing tank, the pressurizing tube is provided with a first one-way valve, the first one-way valve only allows air in the pressurizing tube to flow into the storing tube, the pressurizing tank is internally provided with a pressurizing piston, the top of the pressurizing piston is sleeved with a connecting rod, the top of the connecting rod is fixedly connected with a sliding block, the sliding block is inserted into a guide rail, the sliding block and the guide rail can slide relatively, the guide rail is arranged on a handle, the pressurizing tank is provided with an air inlet pipe, a second one-way valve is arranged at the air inlet pipe, and the second one-way valve only allows air to flow into the pressurizing tank.

Preferably, the screw rod comprises a threaded part and a polished rod part, the diameter of the threaded part is larger than the size of the polished rod part, a plugging plate is arranged in the diaphragm valve body, and the polished rod part is attached to the inner ring of the plugging plate and can rotate relatively.

Preferably, a sealing gasket is arranged on the sealing plate, the sealing gasket is embedded into the sealing plate, and the sealing gasket is sleeved on the outer side of the polish rod part.

Preferably, one side of the lubricating piston, which is close to the cavity, is provided with a conical part, and the conical part is matched with the inner wall of the storage tube.

Preferably, the connecting rod is provided with a lug, the lug is matched with the groove, the groove is arranged on the pressurizing piston, and the connecting rod and the pressurizing piston can rotate relatively.

Preferably, the slider is provided in a fan shape.

Compared with the related art, the diaphragm valve convenient to overhaul provided by the utility model has the following structure

The beneficial effects are that:

the utility model provides a diaphragm valve convenient to overhaul, which is characterized in that a handle is rotated, a pressurizing piston can be driven to move up and down through parts such as a guide rail, a sliding block and the like, the pressurizing piston moves upwards, outside air can be sucked into the pressurizing piston, the pressurizing piston moves downwards, air in a pressurizing tank can be fed into a storage pipe, the air extrudes a lubricating piston, the lubricating piston moves to one side of a cavity, lubricant in the lubricating piston is pushed into the cavity and is fed into a lubricating hole through the cavity and a liquid guide hole, and the screw thread part connected with a diaphragm valve body is lubricated, so that screw abrasion is avoided, the service life of the screw is prolonged, the size of a valve body channel is regulated, the screw is convenient to detach, and the inside of the diaphragm valve body is convenient to overhaul.

Drawings

Fig. 1 is a schematic structural view of a membrane valve for easy maintenance.

Fig. 2 is a schematic structural view of a membrane valve for easy maintenance.

Fig. 3 is a schematic view of the internal structure of a membrane valve for easy maintenance.

Fig. 4 is a schematic view of the structure of the diaphragm valve at a in fig. 3, which is convenient to overhaul.

Fig. 5 is a schematic view of the structure of the diaphragm valve at B in fig. 3 for easy maintenance.

Reference numerals in the drawings: 1. a diaphragm valve body; 2. a screw; 3. a handle; 4. a plugging plate; 5. a sealing gasket; 6. a lubrication hole; 7. a liquid guiding hole; 8. a cavity; 9. a lubricating member; 10. a storage tube; 11. lubricating the piston; 12. a spring; 13. a pressurizing tube; 14. a pressurized tank; 15. a pressurizing piston; 16. a connecting rod; 17. a guide rail; 18. and an air inlet pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; 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.

1-5, the utility model includes the diaphragm valve body 1, threaded spindle 2, the threaded spindle 2 inserts in the diaphragm valve body 1 and threaded spindle 2 connects with diaphragm valve body 1 through the whorl, the top of threaded spindle 2 installs the grip 3, the threaded spindle 2 includes the threaded part, polish rod part, the diameter of the threaded part is greater than the size of polish rod part, there are seal plates 4 in the diaphragm valve body 1, polish rod part is laminated with inner race of the seal plate 4 and the two can rotate relatively, install the sealing gasket 5 on the seal plate 4, the sealing gasket 5 is embedded in seal plate 4, and the sealing gasket 5 is covered outside polish rod part;

the diaphragm valve body 1 is provided with a plurality of lubrication holes 6 at the position corresponding to the screw rod 2, each lubrication hole 6 is connected with a liquid guide hole 7, each liquid guide hole 7 is connected with a cavity 8, the cavity 8 is arranged on a lubricating piece 9, the lubricating piece 9 is fixedly arranged on the diaphragm valve body 1, a storage tube 10 is inserted into the lubricating piece 9, the storage tube 10 stores lubricating agent, the lubricating agent is lubricating oil, the storage tube 10 is communicated with the cavity 8, a lubrication piston 11 is arranged in the storage tube 10 and can slide relatively with the inner wall of the storage tube 10, one side of the lubrication piston 11 close to the cavity 8 is provided with a conical part, the conical part is matched with the inner wall of the storage tube 10, and the lubrication piston 11 is connected with a spring 12;

the storage tube 10 is connected with the pressurizing tube 13, the other end of the pressurizing tube 13 is connected with the pressurizing tank 14, a first one-way valve is arranged on the pressurizing tube 13, the first one-way valve only allows air in the pressurizing tube 13 to flow into the storage tube 10, a pressurizing piston 15 is arranged in the pressurizing tank 14, a connecting rod 16 is sleeved at the top of the pressurizing piston 15, a bump is arranged on the connecting rod 16, the bump is matched with the groove, the groove is arranged on the pressurizing piston 15, the connecting rod 16 and the pressurizing piston 15 can rotate relatively, a sliding block is fixedly connected with the top end of the connecting rod 16, the sliding block is arranged in a fan shape, the sliding block is inserted into a guide rail 17, the sliding block and the guide rail 17 can slide relatively, the guide rail 17 is arranged on the handle 3, an air inlet pipe 18 is arranged on the pressurizing tank 14, a second one-way valve is arranged at the air inlet pipe 18, and the second one-way valve only allows air to flow into the pressurizing tank 14; the rotating handle 3 can drive the screw rod 2 to rotate so as to adjust the size of a channel in the diaphragm valve, the screw rod 2 and the diaphragm valve body 1 are connected through threads, the screw rod 2 and the diaphragm valve body 1 can move up and down in the rotating process, the pressurizing piston 15 can be driven to move up and down through parts such as the guide rail 17 and the sliding block, the pressurizing piston 15 moves to the upper side, outside air can be sucked into the pressurizing piston 15, the pressurizing piston 15 moves to the lower side, air in the pressurizing tank 14 can be sent into the storage tube 10, the air extrudes the lubricating piston 11, the lubricating piston 11 moves to one side of the cavity 8, lubricant in the lubricating piston 11 is pushed into the cavity 8, and the lubricating hole 6 is sent into the thread connected with the screw rod 2 and the diaphragm valve body 1 through the cavity 8 and the liquid guide hole 7, so that the screw rod 2 is prevented from being worn, the service life of the screw rod 2 is prolonged, and the disassembly and the overhaul are more convenient.

Working principle:

when the utility model is used, the rotating handle 3 can drive the screw rod 2 to rotate, so that the size of a channel in the diaphragm valve is adjusted, the screw rod 2 is connected with the diaphragm valve body 1 through threads, the screw rod 2 can move up and down in the rotating process, the pressurizing piston 15 can be driven to move up and down through the parts such as the guide rail 17, the sliding block and the like, the pressurizing piston 15 moves up and down, the outside air can be sucked into the pressurizing piston 15, the pressurizing piston 15 moves down, and the air in the pressurizing tank 14 can be fed into the storage tube 10;

air entering into the storage tube 10 in the pressurizing tank 14 extrudes the lubricating piston 11, the lubricating piston 11 moves to one side of the cavity 8, the lubricant in the lubricating piston 11 is pushed into the cavity 8 and is sent to the lubricating hole 6 through the cavity 8 and the liquid guide hole 7, and the screw thread of the screw rod 2 connected with the diaphragm valve body 1 is lubricated, so that the screw rod 2 is prevented from being worn, the service life of the screw rod 2 is prolonged, and the screw rod is more convenient to detach and overhaul.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a diaphragm valve convenient to overhaul, includes diaphragm valve body (1), screw rod (2), in screw rod (2) inserted diaphragm valve body (1) and screw rod (2) pass through threaded connection with diaphragm valve body (1), handle (3) are installed at screw rod (2) top, a serial communication port, diaphragm valve body (1) corresponds the position department of screw rod (2) and is provided with a plurality of lubrication holes (6), and every lubrication hole (6) all is connected with drain hole (7), and cavity (8) are all connected to a plurality of drain holes (7), and cavity (8) set up on lubricant (9), lubricant (9) fixed mounting is on diaphragm valve body (1), alternates in lubricant (9) has storage tube (10), stores in storage tube (10) lubricant, and storage tube (10) intercommunication cavity (8), installs lubrication piston (11) in storage tube (10) and lubrication piston (11) and the relative slip of storage tube (10) inner wall, lubrication piston (11) connect spring (12);

the storage tube (10) is connected with the pressurizing tube (13), the pressurizing tube (13) other end is connected with the pressurizing tank (14), install first check valve on the pressurizing tube (13), first check valve only allows the air in the pressurizing tube (13) to flow into in the storage tube (10), be provided with in the pressurizing tank (14) and pressurize piston (15), the top cover of pressurizing piston (15) is equipped with connecting rod (16), connecting rod (16) top fixedly connected with slider, in slider inserted guide rail (17), and slider and guide rail (17) can relatively slide, guide rail (17) are installed on handle (3), install intake pipe (18) on the pressurizing tank (14), intake pipe (18) department installs the second check valve, and the second check valve only allows the air to flow into inside the pressurizing tank (14).

2. The diaphragm valve convenient to overhaul according to claim 1, wherein the screw rod (2) comprises a threaded part and a polished rod part, the diameter of the threaded part is larger than the size of the polished rod part, a plugging plate (4) is arranged in the diaphragm valve body (1), and the polished rod part is attached to the inner ring of the plugging plate (4) and can rotate relatively to the inner ring of the plugging plate.

3. The diaphragm valve convenient to overhaul as claimed in claim 2, wherein the sealing gasket (5) is arranged on the plugging plate (4), the sealing gasket (5) is embedded into the plugging plate (4), and the sealing gasket (5) is sleeved outside the polish rod part.

4. A membrane valve for easy access according to claim 1, characterized in that the side of the lubrication piston (11) close to the cavity (8) is provided as a conical part, and the conical part is fitted with the inner wall of the storage tube (10).

5. The diaphragm valve according to claim 1, wherein the connecting rod (16) is provided with a protrusion, the protrusion is matched with a groove, the groove is arranged on the pressurizing piston (15), and the connecting rod (16) and the pressurizing piston (15) can rotate relatively.

6. A membrane valve for easy access as defined in claim 1, wherein said slider is configured in a fan shape.