Flange type diaphragm valve convenient to disassemble

Abstract

The flange type diaphragm valve comprises a diaphragm valve body, a communicating pipe is installed at one end of a flange plate in a communicating mode, a drawing block is fixedly connected to the center of the upper end of a locking buckle block, the locking buckle block and locking buckle grooves are installed in an inserted mode, and the locking buckle grooves are formed in the edges of the two sides of the communicating pipe. A sealing ring groove is formed in the inner side of one end of the communicating pipe, and the sealing ring and the sealing ring groove are installed in an inserted mode. According to the flange type diaphragm valve convenient to disassemble, a locking buckle block can be driven by a connecting spring to be buckled into a locking buckle groove so that a limiting baffle and a communicating pipe can be rapidly positioned and locked, buckling sealing can be achieved through a sealing ring groove and a sealing ring, installation is stable and convenient, and practicability is high. And the diaphragm of the diaphragm valve is conveniently and stably sealed and fixed through a third fixing bolt, a positioning splicing groove and a positioning splicing convex block, use is stable, rapid and stable disassembly and assembly can be conducted through a mounting insertion groove, a second fixing bolt and a mounting insertion block, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of flange diaphragm valve technology, specifically a flange diaphragm valve that is easy to disassemble. Background Technology

[0002] A flanged diaphragm valve is a special type of shut-off valve that emerged in the 1920s. Its opening and closing element is a diaphragm made of soft material, which separates the valve body cavity from the valve cover cavity and the drive components, hence the name diaphragm valve. Its most prominent feature is that the diaphragm separates the lower valve body cavity from the upper valve cover cavity, protecting the valve stem, valve disc, and other parts located above the diaphragm from media corrosion. This eliminates the need for a packing seal structure and prevents media leakage.

[0003] An existing flanged diaphragm valve CN202121702308.2 has connecting parts installed at both ends of the first sealing cover, and the connecting parts are fixed together by bolts. This facilitates the disassembly and fixing of the outside of the filter seat and the inspection and maintenance of the inside of the filter seat. However, it has shortcomings. The existing equipment has poor disassembly stability and convenience, and the diaphragm replacement is inconvenient. The installation is unstable and the use is inconvenient. Therefore, there is a need for a flanged diaphragm valve that is easy to disassemble to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a flanged diaphragm valve that is easy to disassemble, so as to solve the problems mentioned in the background art, such as poor stability and convenience of disassembly and assembly of flanged diaphragm valves, inconvenient diaphragm replacement, unstable installation, and inconvenient use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flanged diaphragm valve that is easy to disassemble, comprising a diaphragm valve body, a diaphragm valve cover installed on the upper end of the diaphragm valve body, and a diaphragm valve handle installed on the upper end of the diaphragm valve cover; flanges are fixedly connected to both sides of the diaphragm valve body, and a sealing ring is fixedly connected to the inner side of one end of the flange; diaphragm valve hardware is rotatably inserted into the inner wall of the diaphragm valve cover, and the upper end of the diaphragm valve hardware is fixedly installed to the diaphragm valve handle; a rotating ring is installed at the lower end of the diaphragm valve hardware, and an installation slot is rotatably installed at the lower end of the rotating ring; an installation block is inserted into the inner wall of the installation slot, and a diaphragm valve diaphragm is fixedly connected to the lower end of the installation block; a second fixing bolt is inserted through the center of the diaphragm valve diaphragm, the installation slot, and the installation block; and a bolt mounting groove is embedded in the outer side of the upper end of the diaphragm valve body. A third fixing bolt is inserted and fitted through the inner wall of the bolt mounting groove of the diaphragm valve cover, the diaphragm valve diaphragm, and the bolt mounting groove. A positioning splicing protrusion is fixedly connected to the inner side of the upper end of the diaphragm valve body, and the positioning splicing protrusion is inserted and fitted into the positioning splicing groove. The positioning splicing groove is opened on the inner side of the lower edge. Limiting baffles are vertically fixedly connected to both sides of the flange, and the inner wall of the limiting baffles is provided with a telescopic groove. Connecting springs are vertically installed on both sides of the inner wall of the telescopic groove, and locking buckles are fixedly connected to the lower ends of the connecting springs. A connecting pipe is connected to one end of the flange. A pull block is fixedly connected to the center of the upper end of the locking buckle, and the locking buckle is inserted and fitted into the locking buckle groove. The locking buckle groove is opened on both sides of the connecting pipe, and a sealing ring groove is opened on the inner side of one end of the connecting pipe. The sealing ring is inserted and fitted into the sealing ring groove. A first fixing bolt is inserted and fitted through the outer side of one end of the flange and the connecting pipe.

[0006] Preferably, the diaphragm valve cover and the diaphragm valve diaphragm are bolted to the diaphragm valve body via a bolt mounting groove and a third fixing bolt.

[0007] Preferably, the diaphragm of the diaphragm valve is installed in a snap-fit ​​and sealed manner with the diaphragm valve body through a positioning splicing groove and a positioning splicing protrusion.

[0008] Preferably, the diaphragm valve diaphragm is installed by a second fixing bolt, a mounting block, and a mounting slot in a bolt-fitting manner, and the mounting slot is rotatably connected to the diaphragm valve hardware by a rotating ring.

[0009] Preferably, the flange is installed in a locking manner with the connecting pipe by means of a locking groove and a locking block, and the locking block is elastically telescopically connected to the locking groove by means of a connecting spring.

[0010] Preferably, the flange is installed in a sealing manner with the connecting pipe through a sealing ring groove and a sealing ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the easily disassembled flange diaphragm valve can quickly position and lock the limit baffle and connecting pipe by connecting spring driving the locking buckle into the locking buckle groove, and can be sealed by sealing ring groove and sealing ring fastening, making installation stable and convenient. Moreover, the diaphragm of the diaphragm valve can be easily and stably sealed and fixed by the third fixing bolt, positioning splicing groove and positioning splicing protrusion, making it stable in use. It can also be quickly and stably disassembled and assembled by mounting slot, second fixing bolt and mounting plug, making it more convenient to use. Attached Figure Description

[0012] Figure 1 This is a front view of a flange-type diaphragm valve that is easy to disassemble according to the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of a flange-type diaphragm valve that is easy to disassemble according to this utility model.

[0014] Figure 3 This is a schematic diagram of the connection between the flange and the connecting pipe of a flange-type diaphragm valve that is easy to disassemble according to this utility model.

[0015] Figure 4 This utility model relates to a flange-type diaphragm valve that is easy to disassemble. Figure 2 Enlarged view of point A in the middle;

[0016] Figure 5 This utility model relates to a flange-type diaphragm valve that is easy to disassemble. Figure 2 Enlarged view at point B in the middle;

[0017] Figure 6 This utility model relates to a flange-type diaphragm valve that is easy to disassemble. Figure 3 Enlarged view at point C;

[0018] Figure 7 This utility model relates to a flange-type diaphragm valve that is easy to disassemble. Figure 3 Enlarged view of point D in the middle.

[0019] In the diagram: 1. Diaphragm valve body, 2. Diaphragm valve cover, 3. Diaphragm valve handle, 4. Diaphragm valve hardware, 5. Diaphragm valve diaphragm, 6. Flange, 7. First fixing bolt, 8. Limiting baffle, 9. Connecting pipe, 10. Rotating ring, 11. Mounting slot, 12. Second fixing bolt, 13. Mounting insert, 14. Positioning splicing groove, 15. Positioning splicing protrusion, 16. Bolt mounting groove, 17. Third fixing bolt, 18. Pull-out block, 19. Connecting spring, 20. Telescopic groove, 21. Locking buckle groove, 22. Locking buckle block, 23. Sealing ring groove, 24. Sealing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-7 This utility model provides a technical solution: a flanged diaphragm valve that is easy to disassemble, comprising a diaphragm valve body 1, a diaphragm valve cover 2, a diaphragm valve handle 3, diaphragm valve hardware 4, a diaphragm valve diaphragm 5, a flange 6, a first fixing bolt 7, a limit baffle 8, a connecting pipe 9, a rotating ring 10, a mounting slot 11, a second fixing bolt 12, a mounting block 13, a positioning splicing groove 14, a positioning splicing protrusion 15, a bolt mounting groove 16, a third fixing bolt 17, and a pull-out block 18. 8. Connecting spring 19, telescopic groove 20, locking buckle groove 21, locking buckle block 22, sealing ring groove 23 and sealing ring 24. The upper end of the diaphragm valve body 1 is equipped with a diaphragm valve cover 2, and the upper end of the diaphragm valve cover 2 is equipped with a diaphragm valve handle 3. The diaphragm valve cover 2 and the diaphragm valve diaphragm 5 are bolted to the diaphragm valve body 1 through bolt mounting groove 16 and third fixing bolt 17. This makes it easy to bolt and fix the diaphragm valve cover 2 and the diaphragm valve diaphragm 5, and the installation is stable.

[0022] Flanges 6 are fixedly connected to both sides of the diaphragm valve body 1, and a sealing ring 24 is fixedly connected to the inner side of one end of the flange 6. The flange 6 is locked to the connecting pipe 9 by the locking groove 21 and the locking block 22. The locking block 22 is elastically telescopically connected to the locking groove 21 by the connecting spring 19. This allows the flange 6 and the connecting pipe 9 to be quickly positioned and locked together, which is convenient for quick disassembly and assembly.

[0023] The flange 6 is installed in a snap-fit ​​seal with the connecting pipe 9 through the sealing ring groove 23 and the sealing ring 24. This makes it easy to position and seal the flange 6, and the installation is stable. The diaphragm valve hardware 4 is rotatably inserted into the inner wall of the diaphragm valve cover 2. The upper end of the diaphragm valve hardware 4 is fixedly installed with the diaphragm valve handle 3. The lower end of the diaphragm valve hardware 4 is installed with a rotating ring 10, and the lower end of the rotating ring 10 is rotatably installed with an installation slot 11. The inner wall of the installation slot 11 is inserted into the installation block 13, and the lower end of the installation block 13 is fixedly connected to the diaphragm valve diaphragm 5. The diaphragm valve diaphragm 5 is installed in a snap-fit ​​seal with the diaphragm valve body 1 through the positioning splicing groove 14 and the positioning splicing protrusion 15. This makes the diaphragm valve diaphragm 5 have a better sealing effect and stable use.

[0024] The diaphragm valve diaphragm 5 is installed by the second fixing bolt 12, the mounting block 13 and the mounting slot 11 in a bolted connection. The mounting slot 11 is rotatably connected to the diaphragm valve hardware 4 by the rotating ring 10. This makes it easy to quickly position and disassemble the diaphragm valve diaphragm 5 and replace it.

[0025] A second fixing bolt 12 is inserted through and fitted into the center of the diaphragm valve diaphragm 5, mounting slot 11, and mounting block 13. A bolt mounting groove 16 is embedded in the outer side of the upper end of the diaphragm valve body 1. A third fixing bolt 17 is inserted through and fitted into the inner wall of the diaphragm valve cover 2, diaphragm valve diaphragm 5, and bolt mounting groove 16. A positioning splicing protrusion 15 is fixedly connected to the inner side of the upper end of the diaphragm valve body 1, and the positioning splicing protrusion 15 is inserted into the positioning splicing groove 14. The positioning splicing groove 14 is opened on the inner side of the lower edge. Limiting baffles 8 are vertically fixedly connected to both sides of the flange 6, and the inner wall of the limiting baffles 8 is... The flange 6 has an expansion groove 20, and connecting springs 19 are vertically installed on both sides of the inner wall of the expansion groove 20. A locking block 22 is fixedly connected to the lower end of the connecting spring 19. A connecting pipe 9 is installed at one end of the flange 6. A pull block 18 is fixedly connected to the center of the upper end of the locking block 22. The locking block 22 is inserted into the locking groove 21. The locking groove 21 is opened on both sides of the connecting pipe 9. A sealing ring groove 23 is opened on the inner side of one end of the connecting pipe 9. The sealing ring 24 is inserted into the sealing ring groove 23. A first fixing bolt 7 is inserted through the outer edge of one end of the flange 6 and the connecting pipe 9.

[0026] Working principle: When using this easily disassembled flanged diaphragm valve, firstly, the diaphragm valve body 1 of the device is attached to the connecting pipe 9, so that the connecting spring 19 drives the locking buckle 22 to be inserted into the locking buckle groove 21, quickly positioning and locking the connecting pipe 9. Then, the sealing ring groove 23 and sealing ring 24 are used for fastening and sealing. Next, the first fixing bolt 7 is used for bolting and fixing. When the diaphragm valve diaphragm 5 needs to be replaced, the diaphragm valve cover 2 can be removed by the third fixing bolt 17. Then, the diaphragm valve diaphragm 5 is quickly positioned and disassembled by the mounting slot 11, the second fixing bolt 12, and the mounting insert 13. Then, the diaphragm valve diaphragm 5 is fastened and sealed to the diaphragm valve body 1 by the positioning splicing groove 14 and the positioning splicing protrusion 15. Finally, the third fixing bolt 17 is used for bolting and fixing, allowing for quick and stable replacement. This is the usage process of this easily disassembled flanged diaphragm valve.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flanged diaphragm valve that is easy to disassemble, comprising a diaphragm valve body (1), wherein a diaphragm valve cover (2) is installed on the upper end of the diaphragm valve body (1), and a diaphragm valve handle (3) is installed on the upper end of the diaphragm valve cover (2), characterized in that: The diaphragm valve body (1) is fixedly connected to flanges (6) on both sides, and a sealing ring (24) is fixedly connected to the inner side of one end of the flange (6). The diaphragm valve hardware (4) is rotatably installed on the inner wall of the diaphragm valve cover (2), and the upper end of the diaphragm valve hardware (4) is fixedly installed with the diaphragm valve handle (3). A rotating ring (10) is installed at the lower end of the diaphragm valve hardware (4), and an installation slot (11) is rotatably installed at the lower end of the rotating ring (10). An installation slot (11) is inserted into the inner wall of the installation slot (11). The mounting block (13) is fixedly connected to the lower end of the mounting block (13) with a diaphragm valve diaphragm (5). A second fixing bolt (12) is inserted through the center of the diaphragm valve diaphragm (5), the mounting slot (11), and the mounting block (13). A bolt mounting groove (16) is embedded on the outer side of the upper end of the diaphragm valve body (1). A third fixing bolt (17) is inserted through the inner wall of the diaphragm valve cover (2), the diaphragm valve diaphragm (5), and the bolt mounting groove (16). The diaphragm valve body (1) is... A positioning splicing protrusion (15) is fixedly connected to the inner side of the flange (6), and the positioning splicing protrusion (15) is inserted into the positioning splicing groove (14). The positioning splicing groove (14) is opened on the inner side of the lower edge. Limiting baffles (8) are fixedly connected vertically on both sides of the flange (6), and the inner wall of the limiting baffles (8) is provided with a telescopic groove (20). Connecting springs (19) are vertically installed on both sides of the inner wall of the telescopic groove (20), and a locking buckle (22) is fixedly connected to the lower end of the connecting springs (19). The flange (6) is one The end is connected to a connecting pipe (9), and a pull block (18) is fixedly connected to the center of the upper end of the locking buckle (22). The locking buckle (22) is inserted into the locking buckle groove (21). The locking buckle groove (21) is opened on both sides of the connecting pipe (9), and a sealing ring groove (23) is opened on the inner side of one end of the connecting pipe (9). The sealing ring (24) is inserted into the sealing ring groove (23). The flange (6) and the outer edge of one end of the connecting pipe (9) are connected by a first fixing bolt (7).

2. A flanged diaphragm valve according to claim 1, characterized in that: The diaphragm valve cover (2) and the diaphragm valve diaphragm (5) are bolted to the diaphragm valve body (1) via bolt mounting groove (16) and third fixing bolt (17).

3. A flanged diaphragm valve according to claim 2, characterized in that: The diaphragm (5) of the diaphragm valve is installed in a snap-fit ​​and sealed manner with the diaphragm valve body (1) through the positioning splicing groove (14) and the positioning splicing protrusion (15).

4. A flanged diaphragm valve according to claim 3, characterized in that: The diaphragm (5) of the diaphragm valve is installed by the second fixing bolt (12), the mounting block (13) and the mounting slot (11) in a bolted connection, and the mounting slot (11) is rotatably connected to the diaphragm valve hardware (4) by the rotating ring (10).

5. A flanged diaphragm valve for easy disassembly according to claim 4, characterized in that: The flange (6) is installed in a locking position with the connecting pipe (9) by means of locking groove (21) and locking block (22), and the locking block (22) is elastically telescopically connected to the locking groove (21) by means of connecting spring (19).

6. A flanged diaphragm valve for easy disassembly according to claim 5, characterized in that: The flange plate (6) is in a buckling sealing installation with the communicating pipe (9) through the sealing ring groove (23) and the sealing ring (24).

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