Detachable diaphragm pump with diaphragm convenient to replace

Abstract

The utility model discloses a detachable diaphragm pump with a diaphragm convenient to replace, which relates to the technical field of diaphragm pumps and comprises a diaphragm pump body, valve covers are arranged on two sides of the diaphragm pump body, first sliding boxes are arranged below the valve covers, first connecting pipes are communicated with the bottoms of the valve covers, and second connecting pipes are communicated with the bottoms of the valve covers. The bottom end of the first connecting pipe is slidably connected to the interior of the first sliding box, a second sliding box is arranged above the valve deck, the top of the valve deck communicates with a second connecting pipe, the top end of the second connecting pipe is slidably connected to the interior of the second sliding box, and flanges are fixedly connected to the two ends of the diaphragm pump body correspondingly. A first threaded groove is formed in the outer ring of the flange, and a second threaded groove is formed in the outer ring of the valve deck. According to the detachable diaphragm pump with the diaphragm convenient to replace, by arranging the first sliding box, the second sliding box and other structures, the valve cover and the diaphragm pump body can be staggered, so that the diaphragm is convenient to replace, and the replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pumps, in particular to a detachable diaphragm pump which is convenient for replacing a diaphragm. Background Art

[0002] A pneumatic diaphragm valve is a special type of shut-off valve. Its opening and closing member is a diaphragm made of a soft material, which separates the inner cavity of the valve body from the inner cavity of the valve cover and the drive components. This is why it is called a pneumatic diaphragm valve. The most prominent feature of a pneumatic diaphragm valve is that the diaphragm separates the lower valve body cavity from the inner cavity of the upper valve cover. This protects the valve stem, valve disc, and other parts above the diaphragm from media corrosion, eliminating the need for a packing seal and preventing media leakage.

[0003] In the prior art, the diaphragm of the diaphragm valve is generally made of rubber and is prone to aging. When replacing the diaphragm, the valve cover usually needs to be removed, and the bolts between the valve cover and the valve body flange, between the valve cover and the water inlet assembly, and between the valve cover and the water outlet assembly need to be unscrewed, which is a cumbersome operation.

[0004] Therefore, it is necessary to propose a detachable diaphragm pump that is convenient for replacing the diaphragm to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a detachable diaphragm pump which is convenient for replacing the diaphragm, so as to solve the problem in the prior art that the diaphragm of the diaphragm valve is generally made of rubber material and is prone to aging. When replacing the diaphragm, the valve cover usually needs to be removed, and bolts need to be unscrewed between the valve cover and the valve body flange, between the valve cover and the water inlet component, and between the valve cover and the water outlet component, which is a relatively cumbersome operation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a detachable diaphragm pump for convenient replacement of the diaphragm, comprising a diaphragm pump body, valve covers are provided on both sides of the diaphragm pump body, a first sliding box is provided below the valve cover, the bottom of the valve cover is connected to a first connecting pipe, the bottom end of the first connecting pipe is slidably connected to the inside of the first sliding box, a second sliding box is provided above the valve cover, the top of the valve cover is connected to a second connecting pipe, and the top end of the second connecting pipe is slidably connected to the inside of the second sliding box.

[0007] Preferably, both ends of the diaphragm pump body are fixedly connected with flanges, a first thread groove is provided on the outer ring of the flange, a second thread groove is provided on the outer ring of the valve cover, and both ends of the diaphragm pump body are rotatably provided with rotary sleeves, and the rotary sleeves cooperate with the corresponding first thread groove and second thread groove.

[0008] Preferably, an anti-slip convex strip is fixedly connected to the outer ring of the rotary sleeve, and the anti-slip convex strip is provided in plurality and evenly distributed around the rotary sleeve.

[0009] Preferably, a water inlet pipe is provided below the diaphragm pump body, and both sides of the water inlet pipe are connected to a first branch pipe, the first branch pipe is fixedly connected to the bottom of the corresponding first sliding box, and a circular groove is provided on the first sliding box to communicate with the corresponding first branch pipe.

[0010] Preferably, a water outlet pipe is provided above the diaphragm pump body, and both sides of the water outlet pipe are connected to second branches, the second branches are fixedly connected to the top of the corresponding second sliding box, and the second sliding box is provided with a circular groove that is connected and matched with the corresponding second branch.

[0011] Preferably, a vertical plate is fixedly connected between the corresponding first sliding box and the second sliding box, a threaded rod is threadedly connected to the vertical plate, and the threaded rod is rotatably connected to the corresponding valve cover.

[0012] Preferably, one end of the threaded rod away from the valve cover is fixedly connected to a rotating block.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The utility model provides a first sliding box and a second sliding box and other structures, so that the valve cover and the diaphragm pump body can be staggered, thereby facilitating the replacement of the diaphragm and improving the replacement efficiency;

[0015] 2. By setting up structures such as a rotary sleeve, the valve cover and the diaphragm pump body are connected. Compared with the existing technology, which uses more bolts, the disassembly and assembly operation is more convenient and the replacement of the diaphragm is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a detachable diaphragm pump for easy replacement of the diaphragm of the utility model.

[0017] Figure 2 This is a schematic structural diagram of the first thread groove and the second thread groove of the utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the rotary sleeve and the anti-slip convex strip of the utility model.

[0019] Figure 4 This is a schematic structural diagram of the first sliding box and the second sliding box of the utility model.

[0020] In the figure: 1. Diaphragm pump body; 2. Valve cover; 3. Flange; 4. First thread groove; 5. Second thread groove; 6. Rotary sleeve; 7. Anti-slip rib; 8. Water inlet pipe; 9. First branch pipe; 10. First slide box; 11. Second slide box; 12. First connecting pipe; 13. Water outlet pipe; 14. Second branch pipe; 15. Vertical plate; 16. Threaded rod; 17. Rotary block; 18. Second connecting pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clear that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figures 1 to 4 The illustrated embodiment shows a detachable diaphragm pump for convenient diaphragm replacement, comprising a diaphragm pump body 1 with valve covers 2 disposed on both sides. Flanges 3 are fixedly connected to both ends of the diaphragm pump body 1, with a first threaded groove 4 defined on the outer ring of the flange 3. A second threaded groove 5 is defined on the outer ring of the valve cover 2. Rotary sleeves 6 are rotatably disposed on both ends of the diaphragm pump body 1, engaging with the corresponding first and second threaded grooves 4 and 5.

[0023] Specifically, align the valve cover 2 with the corresponding flange 3 and rotate the rotary sleeve 6. Since the rotary sleeve 6 cooperates with the corresponding first thread groove 4 and second thread groove 5, the valve cover 2 and the diaphragm pump body 1 are connected. Compared with the existing technology, which uses more bolts, the disassembly and assembly operations are more convenient and the replacement of the diaphragm is convenient.

[0024] In order to improve the operating efficiency of the rotary sleeve 6 , an anti-slip ridge 7 is fixedly connected to the outer ring of the rotary sleeve 6 . There are multiple anti-slip ridges 7 , and the multiple anti-slip ridges 7 are evenly distributed around the rotary sleeve 6 .

[0025] A first sliding box 10 is provided below the valve cover 2, and a water inlet pipe 8 is provided below the diaphragm pump body 1. Both sides of the water inlet pipe 8 are connected to the first branch pipe 9. The first branch pipe 9 is fixedly connected to the bottom of the corresponding first sliding box 10, and a circular groove is opened on the first sliding box 10 to communicate with the corresponding first branch pipe 9.

[0026] The bottom of the valve cover 2 is connected to a first connecting pipe 12 , and the bottom end of the first connecting pipe 12 is slidably connected to the inside of the first sliding box 10 .

[0027] The first connecting pipe 12 can be connected to the corresponding first branch pipe 9 through the circular groove on the first sliding box 10. During use, a rubber pad can be set inside the first sliding box 10 to improve the sealing performance of the connection between the first connecting pipe 12 and the corresponding first branch pipe 9, while reducing the wear of the first connecting pipe 12 when sliding.

[0028] A second sliding box 11 is provided above the valve cover 2, and a water outlet pipe 13 is provided above the diaphragm pump body 1. Both sides of the water outlet pipe 13 are connected with second branch pipes 14. The second branch pipes 14 are fixedly connected to the top of the corresponding second sliding box 11, and a circular groove is provided on the second sliding box 11 to communicate with the corresponding second branch pipe 14. The top of the valve cover 2 is connected with a second connecting pipe 18, and the top end of the second connecting pipe 18 is slidably connected to the inside of the second sliding box 11.

[0029] The second connecting pipe 18 can be connected to the corresponding second branch pipe 14 through the circular groove on the second sliding box 11. During use, a rubber pad can be set inside the second sliding box 11 to improve the sealing performance of the connection between the second connecting pipe 18 and the corresponding second branch pipe 14, while reducing the wear of the second connecting pipe 18 when sliding.

[0030] A vertical plate 15 is fixedly connected between the corresponding first sliding box 10 and the second sliding box 11 , so that the first sliding box 10 and the second sliding box 11 form a whole.

[0031] When the diaphragm needs to be replaced, the rotary sleeve 6 is rotated to separate the valve cover 2 from the diaphragm pump body 1, and the valve cover 2 is pushed toward the vertical plate 15. The bottom end of the first connecting pipe 12 slides inside the first sliding box 10, and the top end of the second connecting pipe 18 is slidably connected to the inside of the second sliding box 11, so that the valve cover 2 and the diaphragm pump body 1 are staggered, thereby facilitating the replacement of the diaphragm. In the prior art, the valve cover 2 and the diaphragm pump body 1, the first connecting pipe 12 and the first branch pipe 9, and the second connecting pipe 18 and the second branch pipe 14 are usually connected by multiple bolts. However, the present invention provides a structure such as the first sliding box 10 and the second sliding box 11, so that the valve cover 2 and the diaphragm pump body 1 can be staggered, thereby facilitating the replacement of the diaphragm and improving the replacement efficiency.

[0032] After the replacement is completed, the valve cover 2 and other structures are pushed back to their original positions, the valve cover 2 is aligned with the corresponding flange 3, and the rotary sleeve 6 is rotated in the opposite direction to complete the docking of the valve cover 2 and the diaphragm pump body 1.

[0033] To facilitate the movement of the valve cover 2, a threaded rod 16 is threadedly connected to the vertical plate 15. The threaded rod 16 is rotatably connected to the corresponding valve cover 2. The end of the threaded rod 16 away from the valve cover 2 is fixedly connected to a rotating block 17. The rotating block 17 drives the threaded rod 16 to rotate, thereby driving the valve cover 2 to move.

Claims

1. A detachable diaphragm pump for convenient diaphragm replacement, comprising a diaphragm pump body (1), characterized in that: A valve cover (2) is provided on both sides of the diaphragm pump body (1), a first sliding box (10) is provided below the valve cover (2), the bottom of the valve cover (2) is connected to a first connecting pipe (12), the bottom end of the first connecting pipe (12) is slidably connected to the inside of the first sliding box (10), a second sliding box (11) is provided above the valve cover (2), the top of the valve cover (2) is connected to a second connecting pipe (18), the top end of the second connecting pipe (18) is slidably connected to the inside of the second sliding box (11).

2. A detachable diaphragm pump for convenient diaphragm replacement according to claim 1, characterized in that: Both ends of the diaphragm pump body (1) are fixedly connected with flanges (3), the outer ring of the flange (3) is provided with a first thread groove (4), the outer ring of the valve cover (2) is provided with a second thread groove (5), and both ends of the diaphragm pump body (1) are rotatably provided with a rotary sleeve (6), and the rotary sleeve (6) cooperates with the corresponding first thread groove (4) and second thread groove (5).

3. A detachable diaphragm pump for convenient diaphragm replacement according to claim 2, characterized in that: An anti-skid convex strip (7) is fixedly connected to the outer ring of the rotary sleeve (6), and the anti-skid convex strip (7) is provided in plurality, and the plurality of anti-skid convex strips (7) are evenly distributed around the rotary sleeve (6).

4. A detachable diaphragm pump for convenient diaphragm replacement according to claim 1, characterized in that: A water inlet pipe (8) is provided below the diaphragm pump body (1), and both sides of the water inlet pipe (8) are connected to a first branch pipe (9), and the first branch pipe (9) is fixedly connected to the bottom of the corresponding first sliding box (10), and a circular groove is provided on the first sliding box (10) to communicate with the corresponding first branch pipe (9).

5. The detachable diaphragm pump for convenient diaphragm replacement according to claim 1, characterized in that: A water outlet pipe (13) is provided above the diaphragm pump body (1), and both sides of the water outlet pipe (13) are connected to a second branch pipe (14), and the second branch pipe (14) is fixedly connected to the top of the corresponding second slide box (11), and a circular groove is provided on the second slide box (11) to communicate with the corresponding second branch pipe (14).

6. The detachable diaphragm pump for convenient diaphragm replacement according to claim 1, characterized in that: A vertical plate (15) is fixedly connected between the corresponding first sliding box (10) and the second sliding box (11), a threaded rod (16) is threadedly connected to the vertical plate (15), and the threaded rod (16) is rotatably connected to the corresponding valve cover (2).

7. A detachable diaphragm pump for convenient diaphragm replacement according to claim 6, characterized in that: One end of the threaded rod (16) away from the valve cover (2) is fixedly connected to a rotating block (17).

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