A high-pressure-resistant diaphragm valve convenient for maintenance

Abstract

The utility model discloses a kind of high-pressure-resistant diaphragm valves convenient for overhauling, it is related to diaphragm valve technical field, the high-pressure-resistant diaphragm valve includes valve body, the upper of valve body is equipped with valve cover, the upper surface of valve cover is equipped with hand wheel, the surface of valve cover is symmetrically installed with L-shaped plate, the bottom of two L-shaped plates is fixedly connected with plugboard, the surface of valve body is symmetrically installed with positioning frame.The utility model is equipped with installation component and dismounting component, can be handled between valve cover and valve body by staff, without using bolt and other tools, effectively improve the dismounting efficiency of valve body and valve cover, reduce the work burden of staff, improve the overhauling convenience of valve body inside, positioning component is equipped, can be handled between valve cover and valve body by staff Positioning butt joint, effectively improve the practicability of device whole.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm valve technology, specifically a high-pressure diaphragm valve that is easy to maintain. Background Technology

[0002] A diaphragm valve is a shut-off valve that uses a diaphragm as the opening and closing element to close the flow channel, cut off the fluid, and separate the valve body cavity from the valve cover cavity. When in use, the diaphragm valve is installed in the pipeline to control the flow rate of the medium in the pipeline. Since the valve body and valve may be damaged during use, the diaphragm valve needs to be inspected regularly. In daily life, a high-pressure diaphragm valve that is easy to maintain is often needed.

[0003] Currently, when installing diaphragm valves, the valve cover and valve body are typically connected by workers using a large number of bolts and special tools. Although this method can effectively open the valve cover and allow for internal inspection of the valve body, the disassembly and assembly process between the valve cover and valve body is time-consuming and labor-intensive. This not only reduces the efficiency of internal valve body inspection but also increases the workload of workers and reduces the convenience of valve body maintenance.

[0004] Based on this, a high-pressure diaphragm valve that is easy to maintain is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a high-pressure diaphragm valve that is easy to maintain, in order to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-pressure resistant diaphragm valve that is easy to maintain includes a valve body, a valve cover located on the top of the valve body, a handwheel located on the upper surface of the valve cover, L-shaped plates symmetrically mounted on the surface of the valve cover, and insert plates fixedly connected to the bottom of each of the two L-shaped plates. Positioning frames are symmetrically mounted on the surface of the valve body, and positioning grooves for the insert plates to move are opened on the upper surface of the positioning frames.

[0008] The mounting components are located inside the insert plate and are used to secure the insert plate to the positioning frame;

[0009] The disassembly assembly is located on the surface of the positioning frame and is used to disassemble the valve cover from the valve body;

[0010] The positioning component is located at the bottom of the valve cover and is used to position and mate the valve cover with the valve body.

[0011] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0012] In one alternative embodiment: the mounting assembly includes an inner plate fixedly connected to the middle of the inner wall of the insert plate, with slide rods symmetrically mounted on both sides of the inner plate, the other end of the slide rods fixedly connected to the inner wall of the insert plate, a movable block slidably connected to the outer wall of every two slide rods, a return spring sleeved on the outside of the slide rods, the return spring abutting between the movable block and the inner plate, an arc-shaped insert fixedly connected to the surface of the movable block, and slots for the arc-shaped insert to move on the surfaces of the insert plate and the positioning frame.

[0013] In one alternative: the disassembly assembly includes a connecting block fixedly connected to the surface of the positioning frame, with pressing plates fixedly connected to both sides of the connecting block via telescopic rods, and pressing blocks fixedly connected to the surface of the pressing plates. An abutting spring is sleeved on the outside of the telescopic rods, and the abutting spring abuts against the pressing plate and the connecting block.

[0014] In one alternative: multiple telescopic rods are fitted with accordion covers, and the two ends of the accordion covers are fixedly connected to the opposite side of the pressing plate and the connecting block, respectively.

[0015] In one alternative: the positioning assembly includes multiple positioning rods fixedly connected to the bottom of the valve cover, and the upper surface of the valve body has multiple mounting slots for the positioning rods to move.

[0016] In one alternative: rubber gaskets are bonded to the contact surfaces of both the valve body and the valve cover.

[0017] In one alternative: multiple telescopic rods, the contact spring, and the return spring are all made of stainless steel.

[0018] In one alternative: anti-slip grooves are evenly spaced on the surfaces of multiple pressing plates.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model, through the design of installation and disassembly components, facilitates the disassembly and assembly of the valve cover and valve body by the staff without the need for the use of bolts or other tools. This effectively improves the efficiency of disassembly and assembly between the valve cover and valve body, reduces the workload of the staff, and enhances the efficiency and convenience of the staff in inspecting the inside of the valve body.

[0021] 2. By setting up a positioning component, this utility model can facilitate the positioning and docking of the valve cover and the valve body by the operator, thereby making it easier for the operator to install the valve cover onto the valve body, further improving the docking and installation efficiency and effect between the valve cover and the valve body, and enhancing the overall practicality of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the structure of the valve body and valve cover after disassembly in this utility model.

[0024] Figure 3 This is a bottom view of the structure of this utility model;

[0025] Figure 4 for Figure 2 Enlarged structural diagram of region A in the middle;

[0026] Figure 5 for Figure 2 A magnified structural diagram of region B in the middle.

[0027] Figure label annotations:

[0028] 1. Valve body; 2. Valve cover; 3. Handwheel; 4. L-shaped plate; 5. Insert plate; 6. Positioning frame; 7. Inner plate; 8. Connecting block; 9. Rubber sealing gasket; 10. Positioning insert rod; 11. Slide rod; 12. Moving block; 13. Return spring; 14. Arc-shaped insert block; 15. Telescopic rod; 16. Pressing plate; 17. Abutment spring; 18. Extrusion block; 19. Bellows protective cover. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] In one embodiment, such as Figures 1-5 As shown, a high-pressure diaphragm valve that is easy to maintain includes a valve body 1, a valve cover 2 located on the top of the valve body 1, a handwheel 3 located on the upper surface of the valve cover 2, L-shaped plates 4 symmetrically mounted on the surface of the valve cover 2, and insert plates 5 fixedly connected to the bottom of each of the two L-shaped plates 4. Positioning frames 6 symmetrically mounted on the surface of the valve body 1, and positioning grooves for the insert plates 5 to move are opened on the upper surface of the positioning frames 6.

[0031] The mounting components are located inside the insert plate 5 and are used to fix the insert plate 5 to the positioning frame 6;

[0032] The disassembly assembly is located on the surface of the positioning frame 6 and is used to disassemble the valve cover 2 from the valve body 1;

[0033] The positioning component is located at the bottom of the valve cover 2 and is used to position and mate the valve cover 2 with the valve body 1.

[0034] In this embodiment, when it is necessary to connect and install the valve cover 2 and the valve body 1, the valve cover 2 and the valve body 1 are first positioned and connected by the positioning component. At this time, the valve cover 2 will drive the L-shaped plate 4 and the insert plate 5 to move synchronously. When the insert plate 5 is inserted into the positioning frame 6, the insert plate 5 and the positioning frame 6 are fixed by the installation component. At this time, the valve cover 2 and the valve body 1 can be connected and installed. When it is necessary to inspect the inside of the valve body 1, the insert plate 5 and the positioning frame 6 can be easily disassembled by the disassembly component, so that the valve cover 2 can be opened and the inside of the valve body 1 can be inspected. Moreover, the disassembly and assembly of the valve body 1 and the valve cover 2 do not require the use of bolts or other tools, which effectively improves the disassembly and assembly efficiency of the valve cover 2 and the convenience of the internal inspection of the valve body 1, and improves the overall practicality of the device.

[0035] In one embodiment, such as Figure 2 and Figure 4 As shown, the installation assembly includes an inner plate 7 fixedly connected to the middle of the inner wall of the insert plate 5. Slide rods 11 are symmetrically installed on both sides of the inner plate 7. The other end of each slide rod 11 is fixedly connected to the inner wall of the insert plate 5. A moving block 12 is slidably connected to the outer wall of every two slide rods 11. A return spring 13 is sleeved on the outside of each slide rod 11, and the return spring 13 abuts against the moving block 12 and the inner plate 7. An arc-shaped insert 14 is fixedly connected to the surface of the moving block 12. Slots for the arc-shaped insert 14 to move are provided on the surfaces of both the insert plate 5 and the positioning frame 6. When it is necessary to install the valve cover 2 between the valve body 1 and the valve body 2, simply insert the insert plate 5 into the positioning frame 6. The arc-shaped insert 14 will move synchronously. When the arc-shaped insert 14 enters the positioning frame 6, it will be squeezed. At this time, the arc-shaped insert 14 will drive the moving block 12 to move synchronously on the outer wall of the slide rod 11. During the movement of the moving block 12, it will squeeze the return spring 13. When the arc-shaped insert 14 moves into the slot on the surface of the positioning frame 6, the return spring 13 will reset, driving the moving block 12 and the arc-shaped insert 14 to move synchronously. When the arc-shaped insert 14 is inserted into the slot on the surface of the positioning frame 6, the insert plate 5 and the positioning frame 6 can be fixed. At this time, the valve cover 2 and the valve body 1 can be connected and installed.

[0036] In one embodiment, such as Figure 2 and Figure 5As shown, the disassembly assembly includes a connecting block 8 fixedly connected to the surface of the positioning frame 6. Both sides of the connecting block 8 are fixedly connected to pressing plates 16 via telescopic rods 15. A squeezing block 18 is fixedly connected to the surface of the pressing plate 16. An abutting spring 17 is sleeved on the outside of the telescopic rod 15, abutting between the pressing plate 16 and the connecting block 8. When the valve cover 2 needs to be opened, simply press the pressing plate 16 first. The pressing plate 16 will then move the squeezing block 18 synchronously. When the squeezing block 18 squeezes the arc-shaped insert 14 into the slot on the surface of the positioning frame 6, the valve cover 2 is then pulled upwards. At this time, the valve cover 2 will move the insert plate 5 and the arc-shaped insert 14 synchronously. When the insert plate 5 is disengaged from the positioning frame 6, the valve cover 2 can be disassembled, allowing staff to easily inspect the interior of the valve body 1. Furthermore, the disassembly and assembly of the valve cover 2 and valve body 1 do not require bolts or other tools, effectively improving the efficiency of disassembly and assembly, reducing the workload of staff, and enhancing the overall practicality and ease of maintenance of the device. During the movement of the pressing plate 16, the telescopic rod 15 and the contact spring 17 are simultaneously compressed. After the valve cover 2 is disassembled, the pressing plate 16 is released, and the contact spring 17 resets, thereby driving the pressing plate 16 and the compression block 18 to move and reset synchronously.

[0037] In one embodiment, such as Figures 1-3 As shown, each of the multiple telescopic rods 15 is fitted with a bellows cover 19. The two ends of the bellows cover 19 are fixedly connected to the opposite side of the pressing plate 16 and the connecting block 8, respectively. By setting the bellows cover 19, the telescopic rods 15 and the abutment springs 17 can be effectively protected, thereby effectively extending the service life of the telescopic rods 15 and the abutment springs 17, without affecting the normal use of the telescopic rods 15 and the abutment springs 17.

[0038] In one embodiment, such as Figure 3 As shown, the positioning assembly includes multiple positioning rods 10 fixedly connected to the bottom of the valve cover 2. The upper surface of the valve body 1 has multiple mounting slots for the positioning rods 10 to move. When it is necessary to connect the valve cover 2 and the valve body 1, simply insert the positioning rods 10 into the mounting slots on the upper surface of the valve body 1. At this time, the positioning rods 10 can effectively position the valve cover 2 and the valve body 1, which makes it easier for the operator to connect the valve cover 2 and the valve body 1.

[0039] In one embodiment, such as Figure 2 and Figure 3As shown, rubber sealing gaskets 9 are bonded to the contact surfaces of valve body 1 and valve cover 2. By setting the rubber sealing gaskets 9, the sealing performance between valve cover 2 and valve body 1 after closure can be effectively improved, thereby avoiding leakage between valve cover 2 and valve body 1, which would affect the normal operation of the device as a whole.

[0040] In one embodiment, such as Figures 1-5 As shown, the multiple telescopic rods 15, the contact spring 17, and the return spring 13 are all made of stainless steel. Stainless steel has good corrosion resistance, so the telescopic rods 15, the contact spring 17, and the return spring 13 also have good corrosion resistance, which can effectively extend the service life of the telescopic rods 15, the contact spring 17, and the return spring 13, and thus effectively extend the service life of the entire device.

[0041] In one embodiment, such as Figures 1-3 As shown, anti-slip grooves are evenly spaced on the surfaces of multiple pressing plates 16. The anti-slip grooves effectively prevent the operator's hand from slipping during the pressing process of the pressing plates 16, thus affecting the disassembly efficiency and effect of the valve cover 2.

[0042] The above embodiment discloses a high-pressure diaphragm valve that is easy to maintain. When it is necessary to connect the valve cover 2 and the valve body 1, the valve cover 2 and the valve body 1 are first positioned and connected by the positioning rod 10. At this time, the valve cover 2 will drive the L-shaped plate 4 and the insert plate 5 to move synchronously. When the insert plate 5 is inserted into the positioning frame 6, the insert plate 5 and the positioning frame 6 are fixed by the arc-shaped insert block 14. At this time, the valve cover 2 and the valve body 1 can be connected and installed. When it is necessary to inspect the inside of the valve body 1, the pressing plate 16 is pressed to facilitate the disassembly of the insert plate 5 and the positioning frame 6. This makes it easy for the operator to open the valve cover 2 and inspect the inside of the valve body 1. Furthermore, the disassembly and assembly of the valve body 1 and the valve cover 2 do not require the use of bolts or other tools, which effectively improves the disassembly and assembly efficiency of the valve cover 2 and the convenience of the internal inspection of the valve body 1, and enhances the overall practicality of the device.

[0043] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A high-pressure resistant diaphragm valve that is easy to maintain, comprising a valve body (1), characterized in that, A valve cover (2) is provided directly above the valve body (1). A handwheel (3) is provided on the upper surface of the valve cover (2). L-shaped plates (4) are symmetrically installed on the surface of the valve cover (2). Insert plates (5) are fixedly connected to the bottom of both L-shaped plates (4). A positioning frame (6) is symmetrically installed on the surface of the valve body (1). A positioning groove for the insertion plate (5) to move is opened on the upper surface of the positioning frame (6). The valve body (1) also includes: The mounting components are disposed inside the insert plate (5) and are used to fix the insert plate (5) to the positioning frame (6); The disassembly assembly is located on the surface of the positioning frame (6) and is used to disassemble the valve cover (2) from the valve body (1); A positioning component is provided at the bottom of the valve cover (2) and is used to position and mate the valve cover (2) with the valve body (1).

2. The high-pressure resistant diaphragm valve for easy maintenance according to claim 1, characterized in that, The installation assembly includes an inner plate (7) fixedly connected to the middle of the inner wall of the insert plate (5). Slide rods (11) are symmetrically installed on both sides of the inner plate (7). The other end of the slide rod (11) is fixedly connected to the inner wall of the insert plate (5). A moving block (12) is slidably connected to the outer wall of every two slide rods (11). A return spring (13) is sleeved on the outside of the slide rod (11). The return spring (13) abuts against the moving block (12) and the inner plate (7). An arc-shaped insert (14) is fixedly connected to the surface of the moving block (12). The surfaces of the insert plate (5) and the positioning frame (6) are provided with slots for the arc-shaped insert (14) to move.

3. A high-pressure resistant diaphragm valve that is easy to maintain according to claim 2, characterized in that, The disassembly assembly includes a connecting block (8) fixedly connected to the surface of the positioning frame (6). Both sides of the connecting block (8) are fixedly connected to a pressing plate (16) via a telescopic rod (15). A squeezing block (18) is fixedly connected to the surface of the pressing plate (16). An abutting spring (17) is sleeved on the outside of the telescopic rod (15). The abutting spring (17) abuts against the pressing plate (16) and the connecting block (8).

4. A high-pressure resistant diaphragm valve that is easy to maintain according to claim 3, characterized in that, Each of the telescopic rods (15) is fitted with a bellows cover (19), and the two ends of the bellows cover (19) are fixedly connected to the opposite side of the pressing plate (16) and the connecting block (8), respectively.

5. A high-pressure resistant diaphragm valve that is easy to maintain according to claim 1, characterized in that, The positioning assembly includes multiple positioning rods (10) fixedly connected to the bottom of the valve cover (2), and the upper surface of the valve body (1) is provided with multiple mounting slots for the positioning rods (10) to move.

6. A high-pressure resistant diaphragm valve that is easy to maintain according to claim 1, characterized in that, The contact surfaces of the valve body (1) and the valve cover (2) are both bonded with rubber sealing gaskets (9).

7. A high-pressure resistant diaphragm valve that is easy to maintain according to claim 3, characterized in that, The materials of the multiple telescopic rods (15), the contact springs (17), and the return springs (13) are all stainless steel.

8. A high-pressure resistant diaphragm valve that is easy to maintain according to claim 3, characterized in that, The surfaces of the multiple pressing plates (16) are provided with anti-slip grooves at equal intervals.

Images