An assembled diaphragm valve

Abstract

An assembled diaphragm valve. The present invention relates to the technical field of valves. A support plate is provided at the upper end of a pipeline, and a valve body base is provided at the upper end of the support plate. A valve body is provided at the upper end of the valve body base, and a screw rod is provided at the upper end of the valve body. A diaphragm tube is provided between the support plate and the pipeline. Two clamping columns are provided at the upper end of the pipeline. Each layer of this assembled diaphragm valve can be assembled and disassembled through the connection between components. The support plate, the valve body base, and the valve body are connected together by clamping each other through respective card slots, which is relatively stable in use. When replacing components, each step can be completely disassembled, facilitating replacement. Through the connection between components of each layer, a diaphragm valve is formed in a stacked manner during connection. Visually, the stacking of layers of this diaphragm valve forms a castle, making it visually appealing.

Description

Technical Field

[0001] The present invention belongs to the technical field of valves, and particularly relates to an assembled diaphragm valve. Background Art

[0002] The structural form of a diaphragm valve is quite different from that of general valves. It is a new type of valve and a special form of stop valve. Its closing and opening member is a diaphragm made of soft material, which separates the inner cavity of the valve body from the inner cavity of the valve cover and the driving components. It is widely used in various fields at present. At present, the opening and closing of the diaphragm valve are realized through two driving methods. One is the handwheel type, and the other is the pneumatic type. The handwheel type driving method realizes the opening and closing of the diaphragm valve by a worker rotating the handwheel. The opening and closing speed of this method is relatively slow. The pneumatic type driving method quickly realizes the opening and closing of the diaphragm valve by means of the pressure generated by air pressure. The opening and closing speed of this method is relatively fast. For example, Chinese Patent CN204344989U discloses a diaphragm valve, the purpose of which is to provide a diaphragm valve with simple structure, convenient assembly, and beneficial to prolong the service life of the diaphragm. As is well known, in order to achieve the sealing effect, the diaphragm should have a certain plasticity and at the same time have a considerable hardness, that is, the brittleness of the diaphragm is poor, and it is easy to generate cracks under the condition of excessive instantaneous force. The rapid opening and closing of the pneumatic diaphragm valve is caused by instantly increasing a huge force on the diaphragm. Therefore, the phenomenon of cracks in the pneumatic diaphragm valve often occurs. Therefore, the diaphragm valve often needs to replace the internal components. However, the diaphragm valve is not comprehensive enough in terms of disassembly and installation, and some places cannot be disassembled, resulting in inconvenience for replacing components. Summary of the Invention

[0003] The present invention mainly solves the technical problems existing in the above-mentioned prior art, and provides an assembled diaphragm valve.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions: An assembled diaphragm valve includes a pipeline. A support plate is provided at the upper end of the pipeline, and a valve body base is provided at the upper end of the support plate. A valve body is provided at the upper end of the valve body base. A screw rod is provided at the upper end of the valve body. A diaphragm pipe is provided between the support plate and the pipeline. Two clamping columns are provided at the upper end of the pipeline.

[0005] Preferably, a valve groove is opened at the upper end of the pipeline corresponding to the position of the diaphragm pipe. A blocking block is fixedly connected to the bottom end of the inner wall of the pipeline corresponding to the valve groove. A clamping plate is fixedly connected to the side end of the pipeline corresponding to the valve groove on the outer wall of the pipeline, and a clamping block extends out of the outside of the clamping plate.

[0006] Preferably, the blocking block is arranged in a cylindrical shape, a groove is opened at the upper end of the blocking block, and the blocking block is fitted together with the inner wall of the pipeline.

[0007] Preferably, the diaphragm tube is cylindrical, and plug-in plates are fixedly connected to both sides of the diaphragm tube. A clamping groove is formed at the lower end of the plug-in plate corresponding to the position of the clamping plate. The clamping plate and the plug-in plate are clamped together. A diaphragm is fixedly connected to the bottom end of the diaphragm tube. The diaphragm is made of a sealing material and is a soft material.

[0008] Preferably, the support plate is semi-arc square-shaped, and an installation groove is formed in the middle position of the support plate. Second clamping grooves are formed on both sides of the installation groove at the upper end of the support plate. Connecting grooves are formed on the bottom surfaces of the two side ends of the support plate. The connecting grooves are movably clamped with the clamping columns. A second clamping plate is movably inserted into the side end of the support plate. A fixing groove is formed at the position of the clamping column corresponding to the second clamping plate. The second clamping plate penetrates through the support plate and extends to be movably clamped with the fixing groove. The installation groove is movably clamped with the diaphragm tube.

[0009] Preferably, the valve body base is square-shaped, and a threaded cylinder is fixedly inserted at the position of the valve body base corresponding to the installation groove. Clamping blocks are fixedly installed on both sides of the threaded cylinder at the lower end of the valve body base corresponding to the position of the second clamping groove. Sealing strips are fixedly installed on both sides of the clamping blocks. The clamping blocks are movably clamped with the corresponding second clamping grooves. The threaded cylinder is fitted with the installation groove.

[0010] Preferably, the valve body is cylindrical, and fixing pieces are fixedly installed on both sides of the bottom end of the valve body. The fixing pieces are parallel to the valve body base. The fixing pieces at the lower end of the valve body are fixedly connected to the upper end of the valve body base by screws. The upper end of the valve body is conical.

[0011] Preferably, a threaded column is inserted into the middle of the screw rod. The threaded column is threadedly connected with the threaded cylinder. A blocking block is fixedly connected to the bottom end of the screw rod. The blocking block penetrates through the valve body, the valve body base, the support plate and extends into the diaphragm tube to fit with the diaphragm. The blocking block together with the diaphragm is movably inserted into the groove inside the blocking block. The blocking block can be fitted with the groove. The top end of the screw rod penetrates through the top end of the valve body and extends to be fixedly connected with the screw rod handle. The screw rod and the screw rod handle can be threadedly connected together.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. Each layer of the assembled diaphragm valve can be assembled and disassembled through the connection between components. The support plate, the valve body base and the valve body are connected together by clamping through each card slot. It is relatively stable in use. When replacing components, each step can be completely disassembled, which is convenient for replacement.

[0014] 2. Through the connection between components of each layer on this prefabricated diaphragm valve, a diaphragm valve is formed in a stacked manner during the connection. Visually, the stacking between layers of this diaphragm valve forms a castle, making it aesthetically pleasing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is a schematic structural diagram inside the pipeline of the present invention;

[0017] Figure 3 is a schematic diagram of the connection between the diaphragm tube and the pipeline of the present invention;

[0018] Figure 4 is a schematic structural diagram of the support plate of the present invention;

[0019] Figure 5 is a schematic structural diagram of the valve body base of the present invention;

[0020] Figure 6 is a schematic structural diagram of the valve body of the present invention;

[0021] Figure 7 is a schematic structural diagram of the screw of the present invention.

[0022] In the figure: 1. Pipeline; 2. Support plate; 3. Valve body base; 4. Valve body; 5. Screw; 6. Diaphragm tube; 7. Clamping post; 8. Valve groove; 9. Blocking block; 10. Groove; 11. Clamping plate; 12. Insertion plate; 13. Diaphragm; 14. Installation groove; 15. Second clamping groove; 16. Connection groove; 17. Second clamping plate; 18. Fixed groove; 19. Threaded cylinder; 20. Clamping block; 21. Fixed piece; 22. Threaded post; 23. Blocking block; 24. Screw handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions of the present invention will be further specifically described below through embodiments in conjunction with the drawings.

[0024] Please refer to Figures 1-7, An assembled diaphragm valve, including a pipeline 1. A support plate 2 is provided at the upper end of the pipeline 1, and a valve body base 3 is provided at the upper end of the support plate 2. A valve body 4 is provided at the upper end of the valve body base 3, and a screw rod 5 is provided at the upper end of the valve body 4. A diaphragm tube 6 is provided between the support plate 2 and the pipeline 1. Two clamping columns 7 are provided at the upper end of the pipeline 1. Through the transfer using the screw rod 5, the screw rod moves up and down on the valve body 4, and the screw rod 4 is located in the diaphragm tube 6 to drive the diaphragm to be clamped with the groove at the pipeline 1, preventing the two sides of the pipeline 1 from communicating with each other. And the support plate 2 is used to support the valve body base 3, and the valve body base 3 stabilizes the valve body 4. And they are assembled together by using their connection relationship.

[0025] A valve groove 8 is opened at the upper end of the pipeline 1 corresponding to the position of the diaphragm tube 6. A blocking block 9 is fixedly connected to the inner wall bottom end of the pipeline 1 corresponding to the position of the valve groove 8. A clamping plate 11 is fixedly connected to the outer wall of the pipeline 1 corresponding to the side end of the valve groove 8. A clamping block extends out of the outer side of the clamping plate 11. There is a valve groove 8 at the upper end of the pipeline 1, and the pipeline 1 is blocked through the valve groove 8. The screw rod 5 drives the diaphragm to resist against the blocking block 9, so that the two form an airtight blocking object, preventing the two sides of the pipeline 1 from communicating with each other. And the clamping plates 11 on both sides of the pipeline 1 are used to assemble the diaphragm together, which is convenient for later disassembly.

[0026] The blocking block 9 is cylindrically arranged, and a groove 10 is opened at the upper end of the blocking block 9. The blocking block 9 fits tightly with the inner wall of the pipeline 1. There is a groove 10 at the upper end of the blocking block 9, and the groove 10 is used to be clamped with the screw rod 5 to block the pipeline 1.

[0027] The diaphragm tube 6 is cylindrically shaped, and plug-in plates 12 are fixedly connected to both sides of the diaphragm tube 6. A clamping groove is opened at the lower end of the plug-in plate 12 corresponding to the position of the clamping plate 11. The clamping plate 11 and the plug-in plate 12 are clamped with each other. A diaphragm 13 is fixedly connected to the bottom end of the diaphragm tube 6. The diaphragm 13 is made of a sealing material and is a soft material. The diaphragm 13 is fixed inside the diaphragm tube 6, and through the symmetrical clamping between the plug-in plate 12 at the side end of the diaphragm tube 6 and the clamping plate 11, the two are clamped and fixed.

[0028] The support plate 2 is semi-arc square-shaped, and an installation groove 14 is provided at the middle position of the support plate 2. At both sides of the installation groove 14 at the upper end of the support plate 2, second clamping grooves 15 are provided. At the bottom surfaces of both side ends of the support plate 2, connection grooves 16 are provided, and the connection grooves 16 are movably clamped with the clamping columns 7. A second clamping plate 17 is movably inserted into the side end of the support plate 2. At the position of the clamping column 7 corresponding to the second clamping plate 17, a fixing groove 18 is provided. The second clamping plate 17 penetrates through the support plate 2 and extends to be movably clamped with the fixing groove 18. The installation groove 14 is movably clamped with the diaphragm tube 6. The support plate 2 clamps the diaphragm tube 6 and the threaded cylinder 19 together through the middle installation groove 14. The connection groove 16 is connected with the clamping column 7 at the upper end of the pipeline 1. By inserting the second clamping plate 17 at the side end into the fixing groove 18 on the clamping column 7, the two are fixed together.

[0029] The valve body base 3 is square-shaped, and a threaded cylinder 19 is fixedly inserted at the position of the valve body base 3 corresponding to the installation groove 14. At both sides of the threaded cylinder 19 at the lower end of the valve body base 3, at the positions corresponding to the second clamping grooves 15, clamping blocks 20 are fixedly installed. Sealing strips are fixedly installed on both sides of the clamping blocks 20. The clamping blocks 20 are movably clamped with the corresponding second clamping grooves 15. The threaded cylinder 19 is fitted with the installation groove 14. By making the clamping blocks 20 at the lower end of the valve body base 3 correspond to the second clamping grooves 15, the valve body base 3 and the support plate 2 are clamped and assembled together, and there are sealing strips inside, so it is not easy to fall off.

[0030] The valve body 4 is cylindrical, and fixing pieces 21 are fixedly installed on both sides at the bottom end of the valve body 4. The fixing pieces 21 are parallel to the valve body base 3. The fixing pieces 21 at the lower end of the valve body 4 are fixedly connected to the upper end of the valve body base 3 by screws. The upper end of the valve body 4 is conical. By using the fixing pieces 21 on the valve body 4 to be fixed on the valve body base 3 by screws, and through the transfer of the screws, it is convenient to assemble and disassemble the two.

[0031] A threaded column 22 is inserted in the middle of the screw rod 5, and the threaded column 22 is threadedly connected with the threaded cylinder 19. A blocking block 23 is fixedly connected to the bottom end of the screw rod 5. The blocking block 23 penetrates through the valve body 4, the valve body base 3, the support plate 2 and extends into the diaphragm tube 6 to be in contact with the diaphragm 13. The blocking block 23 together with the diaphragm 13 is movably inserted into the groove 10 inside the blocking block 9, and the blocking block 23 can be fitted with the groove 10. The top end of the screw rod 5 penetrates through the top end of the valve body 4 and extends to be fixedly connected with the screw rod handle 24. The screw rod 5 and the screw rod handle 24 can be threadedly connected. Since the screw rod 5 and the screw rod handle 24 are threadedly connected, it is convenient to disassemble. And a threaded column 22 is inserted on the screw rod 5. By using the connection between the threaded column 22 and the threaded cylinder 19, it is convenient to disassemble.

[0032] Working principle: The screw rod 5 is used for transfer, enabling the screw rod to move up and down on the valve body 4, so that the screw rod 4 is located in the diaphragm tube 6 and the diaphragm is connected with the groove at the pipeline 1 to be clamped together, preventing the two sides of the pipeline 1 from communicating with each other. Moreover, the support plate 2 is used to support the valve body base 3, stabilizing the valve body 4 through the valve body base 3, and they are assembled together by using their connection relationship. There is a valve groove 8 at the upper end of the pipeline 1, and the pipeline 1 is blocked through the valve groove 8. By using the diaphragm driven by the screw rod 5 to resist the blocking block 9, the two form an airtight blocking object, preventing the two sides of the pipeline 1 from communicating with each other. Moreover, the clamping plates 11 on both sides of the pipeline 1 are used to assemble the diaphragm together, facilitating later disassembly. The groove 10 is clamped with the screw rod 5 to block the pipeline 1. There is a diaphragm 13 fixed inside the diaphragm tube 6, and the plug-in plate 12 at the side end of the diaphragm tube 6 is symmetrically clamped with the clamping plate 11, enabling the two to be clamped and fixed. The support plate 2 clamps the diaphragm tube 6 and the threaded cylinder 19 together through the installation groove 14 in the middle, and is connected with the clamping column 7 at the upper end of the pipeline 1 through the connection groove 16. Moreover, the second clamping plate 17 at the side end is inserted into the fixing groove 18 on the clamping column 7 to fix the two together. The clamping block 20 at the lower end of the valve body base 3 corresponds to the second clamping groove 15, enabling the valve body base 3 and the support plate 2 to be clamped and assembled together, and there is a sealing strip inside, which is not easy to fall off. The valve body 4 is fixed on the valve body base 3 through the fixing piece 21 by screws. By using the transfer of the screws, it is convenient to assemble and disassemble the two. The screw rod 5 and the screw rod handle 24 are in threaded connection, which is convenient for disassembly. Moreover, a threaded column 22 is inserted on the screw rod 5, and the connection between the threaded column 22 and the threaded cylinder 19 facilitates disassembly. The entire diaphragm valve is connected together by using the clamping relationship and connection relationship among them. Then, when replacement of parts is required, only these parts need to be disassembled one by one to complete the replacement and disassembly. By rotating the screw rod handle 24, the threaded column 22 on the screw rod 5 rotates in the threaded cylinder 19, enabling the screw rod 5 to move up and down, thereby driving the blocking block 23 at the bottom end of the screw rod 5 and the diaphragm 13 to block the groove 10 on the blocking block 9, so that the two ends of the pipeline 1 are blocked by the blocking object and do not communicate with each other.

[0033] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and there can be many variations. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. An assembled diaphragm valve, comprising a pipeline (1), characterized in that A support plate (2) is provided at the upper end of the pipeline (1), and a valve body base (3) is provided at the upper end of the support plate (2). A valve body (4) is provided at the upper end of the valve body base (3), and a screw rod (5) is provided at the upper end of the valve body (4). A diaphragm tube (6) is provided between the support plate (2) and the pipeline (1), and two clamping columns (7) are provided at the upper end of the pipeline (1). A valve groove (8) is provided at the upper end of the pipeline (1) corresponding to the position of the diaphragm tube (6). A blocking block (9) is fixedly connected to the inner wall bottom end of the pipeline (1) corresponding to the position of the valve groove (8). A clamping plate (11) is fixedly connected to the outer wall of the pipeline (1) corresponding to the side end of the valve groove (8), and a clamping block extends out of the outside of the clamping plate (11). The blocking block (9) is arranged in a cylindrical shape, and a groove (10) is provided at the upper end of the blocking block (9). The blocking block (9) is fitted together with the inner wall of the pipeline (1). The diaphragm tube (6) is in a cylindrical shape, and plugging plates (12) are fixedly connected to both sides of the diaphragm tube (6). A clamping groove is provided at the lower end of the plugging plate (12) corresponding to the position of the clamping plate (11). The clamping plate (11) and the plugging plate (12) are clamped together. A diaphragm (13) is fixedly connected to the bottom end of the diaphragm tube (6). The diaphragm (13) is made of a sealing material and is a soft material. The support plate (2) is in a semi-circular square shape, and an installation groove (14) is provided at the middle position of the support plate (2). Second clamping grooves (15) are provided on both sides of the installation groove (14) at the upper end of the support plate (2). Connecting grooves (16) are provided at the bottom surfaces of both side ends of the support plate (2), and the connecting grooves (16) are movably clamped with the clamping columns (7). A second clamping plate (17) is movably inserted into the side end of the support plate (2). A fixing groove (18) is provided at the position of the clamping column (7) corresponding to the second clamping plate (17). The second clamping plate (17) penetrates through the support plate (2) and extends to be movably clamped with the fixing groove (18). The installation groove (14) is movably clamped with the diaphragm tube (6). The valve body base (3) is in a square shape, and a threaded cylinder (19) is fixedly inserted at the position of the valve body base (3) corresponding to the installation groove (14). Clamping blocks (20) are fixedly installed on both sides of the threaded cylinder (19) at the lower end of the valve body base (3) corresponding to the position of the second clamping grooves (15). Sealing strips are fixedly installed on both sides of the clamping blocks (20), and the clamping blocks (20) are movably clamped with the corresponding second clamping grooves (15). The threaded cylinder (19) is fitted together with the installation groove (14).

2. The assembled diaphragm valve according to claim 1, characterized in that The valve body (4) is in a cylindrical shape, and fixing pieces (21) are fixedly installed on both sides of the bottom end of the valve body (4). The fixing pieces (21) are parallel to the valve body base (3). The fixing pieces (21) at the lower end of the valve body (4) are fixedly connected to the upper end of the valve body base (3) by screws. The upper end of the valve body (4) is in a conical shape.

3. The assembled diaphragm valve according to claim 2, characterized in that A threaded post (22) is inserted in the middle of the screw rod (5), and the threaded post (22) is threadedly connected to the threaded cylinder (19). The bottom end of the screw rod (5) is fixedly connected with a blocking block (23), and the blocking block (23) penetrates through the valve body (4), the valve body base (3), the support plate (2) and extends into the diaphragm tube (6) to be in contact with the diaphragm (13). The blocking block (23) together with the diaphragm (13) is movably inserted into the groove (10) inside the blocking block (9), and the blocking block (23) can be in contact with the groove (10). The top end of the screw rod (5) penetrates through the top end of the valve body (4) and extends to be fixedly connected with the screw rod handle (24), and the screw rod (5) and the screw rod handle (24) are connected through threads.

Images