Corrugated pipe stop valve convenient to disassemble and replace

Abstract

The utility model discloses a corrugated pipe stop valve convenient to disassemble and replace, and relates to the technical field of corrugated pipe stop valves. The corrugated pipe stop valve convenient to disassemble and replace comprises a stop valve body, first connecting devices are arranged on the left side wall and the right side wall of the stop valve body, and second connecting devices connected with a corrugated pipe are arranged on the opposite side walls of the first connecting devices. The outer surface of the first connecting device and the outer surface of the second connecting device are provided with quick dismounting devices facilitating quick dismounting. The corrugated pipe is connected with the stop valve through the first connecting device and the second connecting device, when the stop valve needs to be overhauled and replaced, the fixed end of the quick release device is opened, and then the stop valve and the first connecting device are taken out from the joint of the second connecting device, so that the convenience of the stop valve during maintenance and replacement is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of bellows stop valves, specifically to a bellows stop valve that is easy to disassemble and replace. Background Technology

[0002] A bellows-sealed gate valve is a type of valve used to control flow rate.

[0003] A flange is a disc-shaped metal body with several holes around its perimeter for fixing, used to connect pipes to pipes, pipes to equipment, or pipes to valves. Flanges are also commonly used in the installation and use of bellows gate valves. Flanges are widely used in the connection of pipes with larger diameters.

[0004] Because bellows gate valves are affected by operating conditions and frequent operation scenarios, their lifespan is short. Therefore, bellows gate valves need to be maintained and replaced frequently. However, the existing flange connection method is relatively complicated to disassemble, which in turn affects the efficiency of bellows gate valve maintenance and replacement.

[0005] Therefore, a bellows stop valve that is easy to disassemble and replace is proposed. Utility Model Content

[0006] The purpose of this utility model is to solve the problem that the bellows gate valve has a short service life due to frequent operation caused by the working conditions, thus requiring frequent maintenance and replacement. The existing flange connection method is relatively complicated to disassemble, which affects the efficiency of maintenance and replacement of the bellows gate valve. This utility model provides a bellows gate valve that is easy to disassemble and replace.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A bellows stop valve that is easy to disassemble and replace includes a stop valve, wherein the left and right side walls of the stop valve are provided with a first connecting device, and the opposite side wall of the first connecting device is provided with a second connecting device for connecting a bellows. The outer surfaces of the first connecting device and the second connecting device are provided with quick-release devices for easy disassembly.

[0009] Furthermore, the connecting device includes a connecting pipe and a connector. The connecting pipe is fixedly installed on the left and right side walls of the shut-off valve, and the connector is fixedly installed on the opposite side wall of the connecting pipe. A sealing groove is formed on the outer surface of the connector.

[0010] Furthermore, the connecting device one includes a sealing ring one, which is installed in the sealing groove of the connector one.

[0011] Furthermore, the second connecting device includes a connecting flange and a second connecting head. The connecting flange is installed on the opposite side wall of the first connecting head, and the second connecting head is fixedly installed on the opposite side wall of the connecting flange. A sealing groove is formed on the outer surface of the second connecting head.

[0012] Furthermore, the second connecting device includes a second sealing ring, which is installed in the sealing groove of the second connecting head.

[0013] Furthermore, the quick-release device includes a clamp, a fixing screw, a limiting pin, and a fixing knob. The clamp is installed on the outer surface of connector one and connector two. The fixing end of the clamp has a circular hole and a fixing groove. The fixing screw is installed in the circular hole of the clamp. The limiting pin is installed in the circular hole of the clamp. The limiting pin is fixedly connected to the fixing screw. The fixing knob is threaded to the upper end face of the fixing screw.

[0014] The beneficial effects of this utility model are as follows:

[0015] The bellows is connected to the gate valve through connecting device one and connecting device two. When the gate valve needs to be repaired or replaced, the fixed end of the quick-release device is opened, and then the gate valve and connecting device one are removed from the connection of connecting device two, thereby improving the convenience of the gate valve during maintenance and replacement.

[0016] By turning the fixing knob clockwise, the fixing knob rotates on the fixing screw, thereby contacting the fixing groove of the clamp and fixing the clamp. When disassembly is required, turn the fixing knob counterclockwise, which drives the fixing screw and the limit pin to rotate forward, thereby opening the clamp and enabling quick disassembly of the connector and the sealing ring. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the quick-release structure of this utility model;

[0020] Reference numerals in the attached drawings: 1. Gate valve; 2. Connecting device one; 201. Connecting pipe one; 202. Connector one; 203. Sealing ring one; 3. Connecting device two; 301. Connecting flange; 302. Connector two; 303. Sealing ring two; 4. Quick release device; 401. Clamp; 402. Fixing screw; 403. Limiting pin; 404. Fixing knob. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Please see Figure 1-3 A bellows stop valve 1 that is easy to disassemble and replace includes a stop valve 1, a connecting device 1 2 is provided on the left and right side walls of the stop valve 1, a connecting device 2 3 for connecting the bellows is provided on the opposite side wall of the connecting device 1 2, and a quick-release device 4 for easy disassembly is provided on the outer surface of the connecting device 1 2 and the connecting device 2 3.

[0026] Specifically, the bellows is connected to the gate valve 1 via connecting device 1 2 and connecting device 2 3. When the gate valve 1 needs to be inspected or replaced, the fixed end of the quick-release device 4 is opened, and then the gate valve 1 and connecting device 1 2 are removed from the connection point of connecting device 2 3, thereby improving the convenience of maintenance and replacement of the gate valve 1.

[0027] The connecting device 2 includes a connecting pipe 201 and a connector 202. The connecting pipe 201 is fixedly installed on the left and right side walls of the shut-off valve 1, and the connector 202 is fixedly installed on the opposite side wall of the connecting pipe 201. A sealing groove is provided on the outer surface of the connector 202.

[0028] Specifically, it is connected to the connecting device 3 via connecting pipe 201 and connector 202.

[0029] The connecting device 2 includes a sealing ring 203, which is installed in the sealing groove of the connector 202.

[0030] Specifically, sealing ring 203 is used to improve the sealing performance between connector 202 and the fixed end of quick-release device 4 when it is fixed.

[0031] The second connecting device 3 includes a connecting flange 301 and a second connecting head 302. The connecting flange 301 is installed on the opposite side wall of the first connecting head 202, and the second connecting head 302 is fixedly installed on the opposite side wall of the connecting flange 301. A sealing groove is provided on the outer surface of the second connecting head 302.

[0032] Specifically, it is connected to the bellows via connecting flange 301 and connector 302.

[0033] The connecting device 2 3 includes a sealing ring 2 303, which is installed in the sealing groove of the connector 2 302.

[0034] Specifically, the sealing performance between connector 302 and the fixed end of quick-release device 4 is improved by using sealing ring 303.

[0035] The quick-release device 4 includes a clamp 401, a fixing screw 402, a limiting pin 403, and a fixing knob 404. The clamp 401 is installed on the outer surface of connector 1 202 and connector 2 302. The fixing end of the clamp 401 has a circular hole and a fixing groove. The fixing screw 402 is installed in the circular hole of the clamp 401. The limiting pin 403 is installed in the circular hole of the clamp 401. The limiting pin 403 is fixedly connected to the fixing screw 402. The fixing knob 404 is threadedly connected to the upper end face of the fixing screw 402.

[0036] Specifically, by turning the fixing knob 404 clockwise, the fixing knob 404 rotates on the fixing screw 402, thereby contacting the fixing groove of the clamp 401 and fixing the clamp 401. When disassembly is required, the fixing knob 404 is turned counterclockwise, which drives the fixing screw 402 and the limit pin 403 to rotate forward, thereby opening the clamp 401 and enabling quick disassembly of the connector 202 and the sealing ring 203.

[0037] In summary:

[0038] The bellows is connected to the gate valve 1 via connecting device 1 (2) and connecting device 2 (3). When the gate valve 1 needs to be inspected or replaced, the fixed end of the quick-release device 4 is opened, and then the gate valve 1 and connecting device 1 (2) are removed from the connection point of connecting device 2 (3), thereby improving the convenience of maintenance and replacement of the gate valve 1. The bellows is connected to connecting device 2 (3) via connecting pipe 1 (201) and connector 1 (202). A sealing ring 1 (203) improves the sealing performance between connector 1 (202) and the fixed end of quick-release device 4 when it is fixed. The bellows is connected to connecting flange 301 and connector 2 (302). A sealing ring 1 (203) further enhances the sealing performance of quick-release device 4. To improve the sealing between connector 202 and the fixed end of quick-release device 4, the fixing knob 404 is turned clockwise. The fixing knob 404 rotates on the fixing screw 402, thereby contacting the fixing groove of clamp 401 and fixing clamp 401. When disassembly is required, the fixing knob 404 is turned counterclockwise. The fixing knob 404 drives the fixing screw 402 and the limit pin 403 to rotate forward, thereby opening clamp 401 and achieving quick disassembly of connector 202 and sealing ring 203.

[0039] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bellows shut-off valve which can be easily disassembled and replaced, comprising a shut-off valve (1), characterized in that, The left and right side walls of the stop valve (1) are provided with connecting device one (2), the opposite side walls of the connecting device one (2) are provided with connecting device two (3) for connecting corrugated pipes, and the outer surfaces of the connecting device one (2) and the connecting device two (3) are provided with quick release devices (4) for facilitating quick disassembly.

2. A quick-change bellows stop valve according to claim 1, characterized in that The connecting device one (2) comprises connecting pipe one (201) and connecting head one (202), the connecting pipe one (201) is fixedly installed on the left and right side walls of the stop valve (1), and the connecting head one (202) is fixedly installed on the opposite side walls of the connecting pipe one (201).

3. A quick-change bellows stop valve according to claim 2, wherein The connecting device one (2) comprises sealing ring one (203), and the sealing ring one (203) is installed in the sealing groove of the connecting head one (202).

4. A quick-change bellows stop valve according to claim 2, wherein The connecting device two (3) comprises connecting flange (301) and connecting head two (302), the connecting flange (301) is installed on the opposite side walls of the connecting head one (202), and the connecting head two (302) is fixedly installed on the opposite side walls of the connecting flange (301).

5. A quick-change bellows stop valve according to claim 4, wherein The connecting device two (3) comprises sealing ring two (303), and the sealing ring two (303) is installed in the sealing groove of the connecting head two (302).

6. A quick-change bellows stop valve according to claim 2, wherein The quick release device (4) comprises a clamp (401), a fixed screw rod (402), a limiting pin (403) and a fixed knob (404), the clamp (401) is installed on the outer surfaces of the connecting head one (202) and the connecting head two (302), the fixed end of the clamp (401) is provided with a circular hole and a fixed groove, the fixed screw rod (402) is installed in the circular hole of the clamp (401), the limiting pin (403) is installed in the circular hole of the clamp (401), the limiting pin (403) is fixedly connected with the fixed screw rod (402), and the fixed knob (404) is threadedly connected to the upper end surface of the fixed screw rod (402).

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