Filter mechanism for preventing blockage of pump valve

Abstract

The utility model discloses an anti-blocking filtering mechanism for a pump valve, and particularly relates to the field of pump valves, the anti-blocking filtering mechanism comprises a fluid outlet pipe and a valve body inlet pipe connected to the inlet end of the pump valve, one end of the valve body inlet pipe is connected with a filtering box through a flange, a square groove is formed in the filtering box, and one end of the fluid outlet pipe is connected with a main telescopic pipe through a flange. An auxiliary telescopic pipe is slidably connected into the main telescopic pipe, a sealing ring is seamlessly connected to one end of the main telescopic pipe, the auxiliary telescopic pipe is slidably connected to the sealing ring, and the end, opposite to the main telescopic pipe, of the auxiliary telescopic pipe is fixedly communicated to a telescopic filter box which is fixedly connected with a pair of balance polished rods. The main telescopic pipe is fixedly connected with a guide block used for balance polish rod insertion. The utility model solves the problems that small-particle impurities filtered at the inlet end of the pump valve are easy to attach to a filtering material, so that the cleaning is inconvenient, and the passing ability of fluid is influenced; in addition, the whole anti-blocking device is tedious to disassemble.

Description

Technical Field

[0001] The utility model relates to the field of pumps and valves, and more specifically, to a filter mechanism for preventing pumps and valves from being blocked. Background Art

[0002] Pumps and valves are a general term for pumps and valves. They are a type of industrial equipment used for liquid transportation. Pumps can be divided into water pumps, oil pumps, chemical pumps, diaphragm pumps, sewage pumps, screw pumps, etc., while valves can be divided into ball valves, butterfly valves, stop valves, check valves, gate valves, regulating valves, throttle valves, etc.

[0003] Announcement No. CN215294000U discloses an anti-blocking device for a pump-valve connection pipeline, including an inlet pipe and a valve body inlet pipe arranged on both sides, the inlet pipe and the valve body inlet pipe are connected by an anti-blocking pipe, an integrated sewage collecting tank body is arranged in the middle of the bottom wall of the anti-blocking pipe, an integrated sewage discharge pipe is arranged in the middle of the bottom wall of the sewage collecting tank body, a T-shaped plunger is inserted and installed at the bottom end of the sewage discharge pipe, an inclined filter plate is welded and fixed at the right pipe end of the anti-blocking pipe, and a plurality of filtrate holes are evenly distributed on the inclined filter plate. The technical solution is simple in structure, easy to assemble and install, easy to clean and discharge large particle impurities that fall through filtration, easy to operate and apply, and helps to extend the service life of the valve.

[0004] In the above-mentioned patent, the inventor believes that when the patent is in use, although it achieves the filtering effect of large particle impurities on the inlet end of the pump valve, small particle impurities that are not easy to fall are easy to adhere to the filter material, which not only makes cleaning inconvenient, but also affects the fluid permeability; in addition, although the entire anti-blocking device is convenient for assembly, when the pipes at the two ends are in a fixed state, this brings cumbersomeness to the disassembly of the anti-blocking device. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a filtering mechanism for preventing pump valve blockage. The technical problem to be solved by the utility model is that small particle impurities filtered at the inlet end of the pump valve are easy to adhere to the filter material, which not only makes cleaning inconvenient, but also affects the fluid permeability; in addition, the disassembly of the entire anti-blocking device is cumbersome.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a filter mechanism for preventing pump valve blockage, comprising a fluid outlet pipe and a valve body inlet pipe connected to the pump valve inlet end, the valve body inlet pipe one end is connected to a filter box through a flange, the filter box is provided with a square groove, one end of the fluid outlet pipe is connected to a main telescopic tube through a flange, the main telescopic tube is slidably connected with a secondary telescopic tube, one end of the main telescopic tube is seamlessly connected with a sealing ring, the secondary telescopic tube is slidably connected to the sealing ring, one end of the secondary telescopic tube facing away from the main telescopic tube is fixedly connected to the telescopic filter box, the filter box is fixedly connected with a pair of balancing light rods, the main telescopic tube is fixedly connected with a guide block for plugging the balancing light rods, a hollow filter screen cylinder is arranged in the square groove, the outer surface of the filter screen cylinder is provided with a guide port, the bottom of the filter screen cylinder is provided with a fastening structure, and the fastening structure is detachably connected to the filter box.

[0007] In a preferred embodiment, a fixing block is fixedly connected to the filter box, and the balancing light rod is fixedly connected to the fixing block.

[0008] In a preferred embodiment, one end of the balancing polished rod is threadedly connected with a blocking cover.

[0009] In a preferred embodiment, a barrel groove matched with the filter screen barrel is provided in the square groove, a pair of slide bars are fixedly connected to the outer surface of the filter screen barrel, a slide groove for sliding of the slide bar is provided in the square groove, and the slide groove is connected to the barrel groove.

[0010] In a preferred embodiment, the fastening structure includes a support plate fixedly connected to the bottom of the filter screen cylinder and a screw cap rotatably connected to the bottom of the support plate, and the screw cap is threadedly connected to the bottom of the filter box.

[0011] In a preferred embodiment, a mounting groove is provided at the bottom of the filter box, and the mounting groove is arranged in a convex structure, the mounting groove is communicated with the square groove, the support plate is located in the mounting groove, and a sealing ring is sleeved on the support plate.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model provides a filter mechanism for preventing pump valve blockage. By providing a filter screen cartridge with an inlet and a hollow configuration, it can provide filtering interception for the inlet end of the pump valve in the pipeline to achieve effective filtering and collection of fluid impurities. The fastening structure provides convenience for disassembly of the filter screen cartridge, which can be conveniently removed for cleaning and reuse. The filter screen cartridge can be flexibly removed for the purpose of ensuring the thoroughness of cleaning of filtered impurities, thereby improving the effectiveness of fluid passage.

[0014] 2. The utility model is a filter mechanism for preventing pump valve blockage. A sealable and retractable main telescopic tube and a secondary telescopic tube are arranged between the fluid outlet pipe and the valve body inlet pipe connected to the pump valve inlet end. The cooperation of the two can adapt to different installation distances between the fluid outlet pipe and the valve body inlet pipe. Because the filter box is used with the secondary telescopic tube, when the fluid outlet pipe and the valve body inlet pipe are in a fixed connection, the main telescopic tube and the secondary telescopic tube are controlled by telescopic means, which can meet the needs of rapid disassembly and assembly of the filter box between the fluid outlet pipe and the valve body inlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the main telescopic tube and the auxiliary telescopic tube of the utility model.

[0017] Figure 3 It is a cross-sectional view of the filter box of the present utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the filter screen cartridge of the present utility model.

[0019] Figure 5 It is a structural schematic diagram of the balanced polished rod of the utility model.

[0020] The accompanying drawings are marked as follows: 1. valve body inlet pipe; 2. fluid outlet pipe; 3. filter box; 31. square groove; 4. main telescopic tube; 5. auxiliary telescopic tube; 6. sealing ring; 7. balance rod; 8. guide block; 9. filter screen cylinder; 91. guide port; 92. slide bar; 10. fastening structure; 101. support plate; 102. screw cover; 11. fixing block; 12. baffle cover; 13. sealing ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Combined with reference Figure 1-Figure 5The utility model provides a filter mechanism for preventing pump valve blockage, comprising a fluid outlet pipe 2 and a valve body inlet pipe 1 connected to the inlet end of the pump valve, the fluid outlet pipe 2 is a fluid delivery pipe for pump valve conduction control, the valve body inlet pipe 1 can be connected to the inlet end of the pump valve through a flange, one end of the valve body inlet pipe 1 is connected to a filter box 3 through a flange, a square groove 31 is provided in the filter box 3, one end of the fluid outlet pipe 2 is connected to a main telescopic pipe 4 through a flange, a secondary telescopic pipe 5 is slidably connected in the main telescopic pipe 4, one end of the main telescopic pipe 4 is seamlessly connected to a sealing ring 6, the secondary telescopic pipe 5 is slidably connected to the sealing ring 6, and the sealing ring 6 can make the connection between the main telescopic pipe 4 and the secondary telescopic pipe 5 have telescopic sealing properties. One end of the auxiliary telescopic tube 5 facing away from the main telescopic tube 4 is fixedly connected to the telescopic filter box 3, and a pair of balancing light rods 7 are fixedly connected to the filter box 3. The balancing light rods 7 can be used for linear guidance of the telescopic main telescopic tube 4 and the auxiliary telescopic tube 5. A guide block 8 for plugging the balancing light rod 7 is fixedly connected to the main telescopic tube 4. A hollow filter screen cylinder 9 is arranged in the square groove 31. The hollow position of the filter screen cylinder 9 can be used to intercept fluid impurities. A guide port 91 is opened on the outer surface of the filter screen cylinder 9. The guide port 91 can facilitate the passage of fluid and ensure the fluid passing amount and filtration amount. A fastening structure 10 is arranged at the bottom of the filter screen cylinder 9, and the fastening structure 10 is detachably connected to the filter box 3.

[0023] Specifically, when the valve body inlet pipe 1 is connected to the inlet end of the pump valve through a flange, and the fluid outlet pipe 2 is set at one end of the valve body inlet pipe 1, the filter box 3 can be connected to the valve body inlet pipe 1 through the flange, and the main telescopic tube 4 is connected to the fluid outlet pipe 2 through the flange. Since the main telescopic tube 4 and the auxiliary telescopic tube 5 have the effect of sealing and telescopic, and the balance rod 7 provides a linear guide for the telescopic expansion of the main telescopic tube 4 and the auxiliary telescopic tube 5, the distance between the opposite ends of the filter box 3 and the main telescopic tube 4 can be adjusted, which can adapt to the different installation spacings of the valve body inlet pipe 1 and the fluid outlet pipe 2, and the filtering mechanism of the present application can be quickly removed without removing the valve body inlet pipe 1 and the fluid outlet pipe 2.

[0024] It is worth noting that the present application can be used in conjunction with a sealing gasket when using a flange to improve the sealing of the connection.

[0025] A fixing block 11 is fixedly connected to the filter box 3 , and the balancing light rod 7 is fixedly connected to the fixing block 11 .

[0026] One end of the balancing rod 7 is threadedly connected with a blocking cover 12, and the blocking cover 12 can be disassembled and assembled on the balancing rod 7. On the one hand, it can prevent the balancing rod 7 from falling off on the guide block 8, so that when the main telescopic tube 4 and the auxiliary telescopic tube 5 are inserted and combined, the anti-falling effect can be achieved. When the main telescopic tube 4 and the auxiliary telescopic tube 5 need to be disassembled, the blocking cover 12 that limits the balancing rod 7 can be removed.

[0027] A barrel groove matched with the filter sieve cylinder 9 is arranged in the square groove 31, a pair of slide bars 92 are fixedly connected to the outer surface of the filter sieve cylinder 9, and a slide groove for the slide bar 92 to slide is arranged in the square groove 31; the slide groove and the barrel groove are connected, and the setting of the barrel groove can make the filter sieve cylinder 9 tightly located in the square groove 31, so that when the fluid passes through the square groove 31, the guide port 91 of the filter sieve cylinder 9 can effectively guide the fluid, and the filter sieve cylinder 9 can filter and intercept impurities; the setting of the slide bar 92, when the filter sieve cylinder 9 enters the square groove 31, the slide bar 92 slides in the slide groove, which can make the filter sieve cylinder 9 move in a straight line, thereby preventing the guide port 91 from deflecting.

[0028] The fastening structure 10 includes a support plate 101 fixedly connected to the bottom of the filter screen cylinder 9 and a screw cover 102 rotatably connected to the bottom of the support plate 101. The screw cover 102 can be connected to the bottom of the support plate 101 through a rotating shaft. The screw cover 102 is threadedly connected to the bottom of the filter box 3. In the present application, a screw thread is provided on the screw cover 102, which can be threadedly connected to the installation groove.

[0029] A mounting groove is provided at the bottom of the filter box 3, and the mounting groove is a convex structure. The mounting groove is connected to the square groove 31. The support plate 101 is located in the mounting groove, and a sealing ring 13 is sleeved on the support plate 101. In the present application, the support plate 101 can be set as a convex structure, which can facilitate the limiting sleeve connection of the sealing ring 13.

[0030] Specifically, the filter screen cartridge 9 is pushed into the square groove 31 through the mounting groove by the fastening structure 10, and the filter screen cartridge 9 can be moved linearly in the cartridge groove under the action of the slide bar 92 sliding in the slide groove, so that the position of the guide port 91 faces the fluid outlet pipe 2 to correspond, and then the rotary cover 102 can be rotated, and its threaded connection in the mounting groove can provide an upward thrust for the filter screen cartridge 9, until the blocking cover 12 drives the sealing ring 13 to be fixed at the inner top position of the mounting groove, so that the filter screen cartridge 9 can be stably limited in the cartridge groove, and the position of the guide port 91 provides a filtering channel for the fluid, so that the filtered impurities can be accumulated in the filter screen cartridge 9, and the filter screen cartridge 9 can be removed by rotating the rotary cover 102 in the opposite direction to clean the impurities.

Claims

1. A filter mechanism for preventing pump and valve blockage, comprising a fluid outlet pipe (2) and a valve body inlet pipe (1) connected to the inlet end of the pump and valve, characterized in that: One end of the valve body inlet pipe (1) is connected to a filter box (3) via a flange, a square groove (31) is provided in the filter box (3), one end of the fluid outlet pipe (2) is connected to a main telescopic pipe (4) via a flange, a secondary telescopic pipe (5) is slidably connected in the main telescopic pipe (4), one end of the main telescopic pipe (4) is seamlessly connected to a sealing ring (6), the secondary telescopic pipe (5) is slidably connected to the sealing ring (6), and one end of the secondary telescopic pipe (5) facing away from the main telescopic pipe (4) is fixedly connected to the sealing ring (6). The invention relates to a telescopic filter box (3), wherein a pair of balancing light rods (7) are fixedly connected to the filter box (3), and a guide block (8) for inserting the balancing light rods (7) is fixedly connected to the main telescopic tube (4). A hollow filter screen cylinder (9) is arranged in the square groove (31), and a guide port (91) is provided on the outer surface of the filter screen cylinder (9). A fastening structure (10) is arranged at the bottom of the filter screen cylinder (9), and the fastening structure (10) is detachably connected to the filter box (3).

2. A filter mechanism for preventing pump valve blockage according to claim 1, characterized in that: A fixing block (11) is fixedly connected to the filter box (3), and the balancing light rod (7) is fixedly connected to the fixing block (11).

3. A filter mechanism for preventing pump valve blockage according to claim 1, characterized in that: One end of the balancing polished rod (7) is threadedly connected with a blocking cover (12).

4. A filter mechanism for preventing pump valve blockage according to claim 1, characterized in that: A barrel groove matched with the filter screen barrel (9) is arranged in the square groove (31); a pair of slide bars (92) are fixedly connected to the outer surface of the filter screen barrel (9); a slide groove for the slide bar (92) to slide is arranged in the square groove (31); the slide groove and the barrel groove are connected.

5. A filter mechanism for preventing pump valve blockage according to claim 1, characterized in that: The fastening structure (10) comprises a support plate (101) fixedly connected to the bottom of the filter screen cylinder (9) and a rotary cover (102) rotatably connected to the bottom of the support plate (101), and the rotary cover (102) is threadedly connected to the bottom of the filter box (3).

6. A filter mechanism for preventing pump valve blockage according to claim 5, characterized in that: The bottom of the filter box (3) is provided with a mounting groove, which is in a convex structure. The mounting groove is connected to the square groove (31). The support plate (101) is located in the mounting groove, and a sealing ring (13) is sleeved on the support plate (101).

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