A connecting pipe for a pneumatic diaphragm pump

Abstract

This application relates to a connecting pipe for a pneumatic diaphragm pump, and pertains to the field of diaphragm pumps. It includes a connecting pipe body, one end of which is connected to the inlet pipe of the pump body. A filter screen is provided inside the connecting pipe body. This application has the effect of improving the service life of the diaphragm pump.

Description

Technical Field

[0001] The present application relates to the field of diaphragm pumps, and in particular to a connecting pipe of a pneumatic diaphragm pump. Background Art

[0002] Pneumatic diaphragm pump is a new type of conveying machinery, which uses compressed air as the power source. It can completely pump out various corrosive liquids, liquids with particles, high-concentration, volatile, flammable and highly toxic liquids. At present, it has formed large-scale production and its product quality is well received.

[0003] The composition of the pneumatic diaphragm pump usually includes a pump body and a liquid inlet pipe and a liquid outlet pipe connected to the pump body. When the pneumatic diaphragm pump is in working state, liquid enters through the liquid inlet pipe and is discharged through the liquid outlet pipe under the action of the pump body.

[0004] Regarding the above-mentioned related technologies, when the liquid is transported by the pneumatic diaphragm pump, the liquid is transported to the liquid inlet pipe through the external pipe. During the transportation process, impurities in the liquid will also enter the diaphragm pump. If this continues for a long time, it will cause the diaphragm pump to be blocked and unable to continue working. Utility Model Content

[0005] In order to improve the phenomenon that impurities enter the diaphragm pump during the transportation process and cause the diaphragm pump to be blocked, the present application provides a connecting pipe for a pneumatic diaphragm pump.

[0006] The present application provides a connecting pipe for a pneumatic diaphragm pump, which adopts the following technical solution:

[0007] A connecting pipe of a pneumatic diaphragm pump comprises a connecting pipe body, one end of the connecting pipe body is connected to a liquid inlet pipe of a pump body, and a filter screen is arranged in the connecting pipe body.

[0008] By adopting the above technical solution, when using a diaphragm pump to transport liquid, the staff uses the connecting pipe body as a connector between the external liquid and the diaphragm pump, and isolates impurities in the external liquid through the filter screen inside it, preventing non-compliant impurities from entering the diaphragm pump, thereby avoiding clogging of the diaphragm pump and helping to increase the service life of the diaphragm pump.

[0009] Optionally, flanges are provided at both ends of the connecting pipe body, which are respectively used to connect the liquid inlet pipe and the external pipe of the pump body.

[0010] By adopting the above technical solution, when the liquid inlet pipe and the external pipe need to be connected, the staff only needs to connect the flanges at both ends of the connecting pipe body to the liquid inlet pipe and the external pipe respectively, which is easy to understand and implement, and easy to disassemble, which is conducive to improving work efficiency.

[0011] Optionally, there are two filters, which are respectively arranged at two ends of the connecting pipe body.

[0012] By adopting the above technical solution and providing two filter screens, the filtering effect inside the connecting pipe body is further improved.

[0013] Optionally, a connecting block is provided on the outside of the filter, and two semi-arc through holes are opened on the connecting pipe body, and the two semi-arc through holes are respectively opened at both ends of the connecting pipe body. The two connecting blocks are respectively located at the two semi-arc through holes of the connecting pipe body and have the same shape and size.

[0014] By adopting the above technical solution, when the filter needs to be cleaned, the worker can take out the filter by pulling the connecting block out from the semi-arc through hole, which is convenient and quick and helps to improve work efficiency.

[0015] Optionally, both ends of the semi-arc through hole of the connecting pipe body are connected with sealing grooves, the sealing grooves are located on the connecting pipe body, and both ends of the connecting block are fixedly connected with clamping blocks, which are located in the sealing grooves.

[0016] By adopting the above technical solution, when the connecting block is installed, the clamping block will be located in the sealing groove, thereby strengthening the sealing between the two and preventing liquid leakage.

[0017] Optionally, both ends of the connecting block are provided with a first positioning groove, the first fixing block is provided in the first positioning groove of the connecting block, the first fixing block is slidably connected to the first positioning groove of the connecting block, both ends of the semi-arc through hole of the connecting tube body are connected with the first fixing groove, when the connecting block is located in the semi-arc through hole, the first positioning groove is connected with the first fixing groove, a connecting plate is provided in the first fixing groove, one end of the connecting plate is fixedly connected to one end of the first fixing block, the connecting plate and the first fixing block are vertically arranged, and a gap is left between the connecting plate and the outer side of the connecting tube body, the bottom end of the first fixing groove is connected with a clamping groove, and the end of the connecting plate away from the first fixing block is fixedly connected with a clamping block, and the clamping block is located in the clamping groove.

[0018] By adopting the above technical solution, when the connecting block is installed, the staff moves the first fixed block to drive the connecting plate to move, so that the clamping block is clamped in the clamping groove, and then the connecting block and the connecting pipe body are tightly connected to prevent the two from separating, which is beneficial to improve the connection stability between the two.

[0019] Optionally, a pull ring is provided on one side of the connection block away from the filter screen.

[0020] By adopting the above technical solution, when the filter needs to be removed, the staff only needs to pull the pull ring to perform the above operation, which is easy to understand and implement and is conducive to improving work efficiency.

[0021] Optionally, a spring is provided in the first fixing groove of the connecting pipe body, one end of the spring is connected to the connecting pipe body, and the other end is connected to a side of the connecting plate away from the clamping block.

[0022] By adopting the above technical solution and setting a spring, the clamping block is tightly abutted against the clamping groove, avoiding position displacement of the clamping block due to shaking, which is beneficial to improving the connection stability between the connecting block and the connecting pipe body.

[0023] Optionally, a pull rod is provided at one end of the first fixing block away from the connecting plate, and the pull rod is hinged to the first fixing block.

[0024] By adopting the above technical solution, when the first fixed block needs to be moved, the staff can achieve the above operation by operating the pull rod, which is convenient and quick. In addition, due to the hinged connection between the pull rod and the first fixed block, bending and breaking of the pull rod is avoided, which is beneficial to improving the stability of the device.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. By setting the connecting pipe body and the filter screen, when a diaphragm pump is needed to transport liquid, the staff uses the connecting pipe body as a connector between the external liquid and the diaphragm pump, and isolates the impurities in the external liquid through the filter screen inside it, preventing non-compliant impurities from entering the diaphragm pump, thereby avoiding clogging of the diaphragm pump and helping to increase the service life of the diaphragm pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The utility model is a schematic diagram of the overall structure of the connecting pipe of a pneumatic diaphragm pump.

[0028] Figure 2 It is a structural schematic diagram highlighting the connecting pipe body in the embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure highlighting the connecting pipe body in the embodiment of the present application.

[0030] Figure 4 yes Figure 3 Enlarged schematic diagram of part A.

[0031] Explanation of the reference numerals: 100, pump body; 110, liquid inlet pipe; 1, connecting pipe body; 11, flange; 2, filter element; 21, filter screen; 22, connecting block; 23, semi-arc through hole; 24, sealing groove; 25, clamping block; 26, pull ring; 3, fixing element; 31, first fixing block; 32, connecting plate; 33, clamping block; 34, spring; 35, pull rod; 36, first positioning groove; 37, first fixing groove; 38, clamping groove. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] An embodiment of the present application discloses a connecting pipe of a pneumatic diaphragm pump.

[0034] Reference Figure 1 and Figure 2 A connecting pipe of a pneumatic diaphragm pump includes a connecting pipe body 1, a filter 2 and a fixing member 3. The connecting pipe body 1 is connected to a liquid inlet pipe 110 of a pump body 100, the filter 2 is arranged in the connecting pipe body 1, and the fixing member 3 is respectively connected to the filter 2 and the connecting pipe body 1. The connecting pipe body 1 connects the diaphragm pump and the external pipe, the filter 2 filters the liquid, and the fixing member 3 ensures the connection stability between the filter 2 and the connecting pipe body 1.

[0035] Reference Figure 1 and Figure 2 , flanges 11 are provided at both ends of the connecting pipe body 1, and the two flanges 11 are respectively connected to the liquid inlet pipe 110 of the connecting pump and the external pipe. When using a diaphragm pump to transport liquid, the staff uses the connecting pipe body 1 as a connector between the external liquid and the diaphragm pump, and isolates impurities in the external liquid through the filter 2 inside it, preventing non-compliant impurities from entering the diaphragm pump, thereby preventing the diaphragm pump from being blocked; when the liquid inlet pipe 110 and the external pipe need to be connected, the staff only needs to connect the flanges 11 at both ends of the connecting pipe body 1 to the liquid inlet pipe 110 and the external pipe respectively, which is easy to understand and implement, and easy to disassemble, which is conducive to improving work efficiency.

[0036] Reference Figure 3 and Figure 4 The filter element 2 includes two filter screens 21 and two connecting blocks 22. The two connecting blocks 22 are respectively arranged on the outsides of the two filter screens 21. Two semi-arc through holes 23 are opened on the connecting pipe body 1. The two semi-arc through holes 23 are respectively opened at the two ends of the connecting pipe body 1. The two connecting blocks 22 are respectively located at the two semi-arc through holes 23 of the connecting pipe body 1 and have the same shape and size. Both ends of the semi-arc through holes 23 of the connecting pipe body 1 are connected with sealing grooves 24. The sealing grooves 24 are located on the connecting pipe body 1. Both ends of the connecting block 22 are fixedly connected with a clamping block 25. The clamping block 25 is located in the sealing groove 24. A pull ring 26 is provided on the side of the connecting block 22 away from the filter screen 21.

[0037] Reference Figure 3 and Figure 4By setting two filter screens 21, the filtering effect inside the connecting pipe body 1 is further improved. When the filter screen 21 needs to be cleaned, the worker pulls the connecting block 22 out of the semi-arc through hole 23 by pulling the pull ring 26, thereby realizing the removal operation of the filter screen 21, which is convenient and quick. When the connecting block 22 is installed, the card block 25 will be located in the sealing groove 24, thereby strengthening the sealing between the two, thereby avoiding liquid leakage.

[0038] Reference Figure 3 and Figure 4 The fixing member 3 includes a first fixing block 31, a connecting plate 32, a clamping block 33, a spring 34 and a pull rod 35. Both ends of the connecting block 22 are provided with a first positioning groove 36. The first fixing block 31 is slidably connected to the first positioning groove 36 of the connecting block 22. Both ends of the semi-arc through hole 23 of the connecting pipe body 1 are connected with a first fixing groove 37. When the connecting block 22 is located in the semi-arc through hole 23, the first positioning groove 36 is connected to the first fixing groove 37. The connecting plate 32 is located in the first fixing groove 37. One end of the connecting plate 32 is fixedly connected to one end of the first fixing block 31. The connecting plate 32 is connected to the first The fixing block 31 is vertically arranged, and there is a gap between the connecting plate 32 and the outer side of the connecting pipe body 1. The bottom end of the first fixing groove 37 is connected to the clamping groove 38. The clamping block 33 is fixedly connected to the end of the connecting plate 32 away from the first fixing block 31. The clamping block 33 and the connecting plate 32 are vertically arranged. The clamping block 33 is located in the clamping groove 38. The spring 34 is located in the first fixing groove 37 of the connecting pipe body 1. One end of the spring 34 is connected to the connecting pipe body 1, and the other end is connected to the side of the connecting plate 32 away from the clamping block 33. The pull rod 35 is hinged to the end of the first fixing block 31 away from the connecting plate 32.

[0039] Reference Figure 3 and Figure 4 When the connecting block 22 is installed, the staff pulls the pull rod 35 to move the first fixed block 31, driving the connecting plate 32 to move, so that the clamping block 33 is clamped in the clamping groove 38, and then the connecting block 22 and the connecting pipe body 1 are tightly connected to prevent the two from separating; by providing a spring 34, the clamping block 33 is tightly abutted against the clamping groove 38, avoiding the position deviation of the clamping block 33 caused by shaking, which is beneficial to improving the connection stability between the connecting block 22 and the connecting pipe body 1, and because the pull rod 35 and the first fixed block 31 are hingedly connected, the pull rod 35 is avoided from being broken due to accidental bending, which is beneficial to improving the stability of the device.

[0040] The implementation principle of the connecting tube of a pneumatic diaphragm pump in an embodiment of the present application is as follows: when using a diaphragm pump to transport liquid, the staff uses the connecting tube body 1 as a connector between the external liquid and the diaphragm pump, and isolates impurities in the external liquid through the filter element 2 inside it, preventing non-compliant impurities from entering the diaphragm pump, thereby preventing the diaphragm pump from being blocked.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connecting pipe for a pneumatic diaphragm pump, comprising a connecting pipe body (1), characterized in that: One end of the connecting pipe body (1) is connected to the liquid inlet pipe (110) of the pump body (100), and a filter screen (21) is arranged in the connecting pipe body (1); the number of the filter screens (21) is two, and the two filter screens (21) are respectively arranged at the two ends of the connecting pipe body (1); a connecting block (22) is arranged outside the filter screen (21); two semi-arc through holes (23) are provided on the connecting pipe body (1), and the two semi-arc through holes (23) are respectively provided at the two ends of the connecting pipe body (1); the two connecting blocks (22) are respectively located at the two semi-arc through holes (23) of the connecting pipe body (1) and have the same shape and size; both ends of the semi-arc through holes (23) of the connecting pipe body (1) are connected to a sealing groove (24), and the sealing groove (24) is located on the connecting pipe body (1); both ends of the connecting block (22) are fixedly connected to a clamping block (25), and the clamping block (25) is located in the sealing groove (24).

2. The connecting pipe of a pneumatic diaphragm pump according to claim 1, characterized in that: Both ends of the connecting pipe body (1) are provided with flanges (11), which are used to connect the liquid inlet pipe (110) of the pump body (100) and the external pipe respectively.

3. The connecting pipe of a pneumatic diaphragm pump according to claim 1, characterized in that: Both ends of the connecting block (22) are provided with a first positioning groove (36), a first fixing block (31) is provided in the first positioning groove (36) of the connecting block (22), and the first fixing block (31) is slidably connected to the first positioning groove (36) of the connecting block (22), and both ends of the semi-arc through hole (23) of the connecting pipe body (1) are connected with a first fixing groove (37), and when the connecting block (22) is located in the semi-arc through hole (23), the first positioning groove (36) is connected with the first fixing groove (37), and the first fixing groove (31) is connected with the first fixing groove (37). A connecting plate (32) is provided in a fixing groove (37), one end of the connecting plate (32) is fixedly connected to one end of the first fixing block (31), the connecting plate (32) and the first fixing block (31) are arranged vertically, a gap is left between the connecting plate (32) and the outer side of the connecting pipe body (1), the bottom end of the first fixing groove (37) is connected to a clamping groove (38), one end of the connecting plate (32) away from the first fixing block (31) is fixedly connected to a clamping block (33), and the clamping block (33) is located in the clamping groove (38).

4. The connecting pipe of a pneumatic diaphragm pump according to claim 1, characterized in that: A pull ring (26) is provided on one side of the connection block (22) away from the filter screen (21).

5. The connecting pipe of a pneumatic diaphragm pump according to claim 3, characterized in that: A spring (34) is provided in the first fixing groove (37) of the connecting pipe body (1), one end of the spring (34) is connected to the connecting pipe body (1), and the other end is connected to a side of the connecting plate (32) away from the clamping block (33).

6. The connecting pipe of a pneumatic diaphragm pump according to claim 3, characterized in that: A pull rod (35) is provided at one end of the first fixing block (31) away from the connecting plate (32), and the pull rod (35) is hinged to the first fixing block (31).

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