Sand pump with filtering structure

Abstract

The utility model belongs to the technical field of sand pumps, in particular to a sand pump with a filter structure, which comprises a sand pump body and a driving motor, the top of the sand pump body is fixedly communicated with a water outlet pipe, one side of the sand pump body is fixedly communicated with a water inlet pipe, and a filter screen is fixedly connected in the water inlet pipe. A dismounting and replacing mechanism is arranged between the filter screen and the water inlet pipe and comprises a connecting assembly and a locking assembly. The sand pump is reasonable in structural design, sundries in liquid can be filtered out before the liquid enters the sand pump body due to the fact that the filter screen is installed in the water inlet pipe, the sundries in the liquid are prevented from damaging an impeller in the sand pump body, the service life of the sand pump body is prolonged, the filter screen can be conveniently and efficiently installed and detached, and the sand pump is convenient to use. The filter screen can be conveniently cleaned and replaced in the later period, and meanwhile, the stability during mounting is ensured, so that the filter screen can stably filter.

Description

Technical Field

[0001] The utility model relates to the technical field of sand pumps, in particular to a sand pump with a filtering structure. Background Art

[0002] A sand pump is a kind of centrifugal slurry pump, which is used to transport suspensions containing sand grains, slag, etc. The impeller is mostly open type. The inner lining of the pump is generally divided into two types, wear-resistant metal and wear-resistant rubber. In addition, high-pressure water is injected into the sliding part of the pump shaft to prevent mud and sand from entering the sliding part. This kind of pump can be used for transporting liquids containing coarse solid substances with a particle size of more than 48 mesh. Generally, it is mainly used in industries such as mining, coal, metallurgy, chemical industry, and environmental protection. Generally, the sand pump more refers to the industries such as environmental protection, sand dredging, and river dredging. After retrieval: A durable axial flow pump with a filtering function structure, with the patent number CN214533745U, includes a housing and a power component located inside the housing and extending to the outside. The top of the housing is fixedly connected and communicated with a water outlet pipe. The right end of the housing is fixedly connected and communicated with a water inlet pipe. And a filtering mechanism is arranged inside the water outlet pipe. A sealing and cleaning mechanism is arranged inside the housing. The filtering mechanism includes a filter screen arranged inside the water outlet pipe. The utility model relates to the technical field of axial flow pumps.

[0003] However, although the above pump body has a filtering structure, the filtering structure is arranged inside the water outlet pipe, which makes it easy for sundries to enter from the water inlet pipe and damage the impeller of the pump body, reducing the service life. At the same time, a torsion spring, a pull rope and a clamping column are used to disassemble and assemble the filter screen. During installation, the torsion spring makes the rotating sleeve reverse and reset to loosen the pull rope. However, since the pull rope cannot provide an outward force to the clamping column, the clamping column cannot move outward and be clamped to the wall of the water outlet pipe, and thus the installation of the filter screen cannot be completed, which is not conducive to the disassembly, cleaning and replacement of the filter screen. Therefore, we propose a sand pump with a filtering structure to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned disadvantages and propose a sand pump with a filtering structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A sand pump with a filtering structure includes a sand pump body and a driving motor. The top of the sand pump body is fixedly connected and communicated with a water outlet pipe. One side of the sand pump body is fixedly connected and communicated with a water inlet pipe. A filter screen is fixedly connected inside the water inlet pipe. An assembly, disassembly and replacement mechanism is arranged between the filter screen and the water inlet pipe. The assembly, disassembly and replacement mechanism includes a connection component and a locking component.

[0007] Preferably, two limiting grooves are formed in one side of the water inlet pipe, and sliding grooves are formed in the inner walls of the two mutually remote sides of the two limiting grooves. The connecting assembly includes limiting blocks slidably connected in the limiting grooves and pressing springs fixedly connected to the inner walls of the sliding grooves. The two limiting blocks are respectively fixedly connected to the top and bottom of the filter net. Card slots are formed in the two mutually remote sides of the two limiting blocks. Sliding blocks are fixedly connected to the two mutually close sides of the two pressing springs. Clamping blocks are fixedly connected to the inner sides of the two sliding blocks. The two clamping blocks are respectively movably clamped in the corresponding card slots.

[0008] Preferably, the two sliding blocks are respectively sleeved in the corresponding sliding grooves in a sliding manner.

[0009] Preferably, one side of the clamping block is in a slope shape.

[0010] Preferably, a connecting rod is fixedly connected to one side of the sliding block. Two long strip holes are formed in one side of the water inlet pipe. The two connecting rods are respectively sleeved in the corresponding long strip holes in a sliding manner.

[0011] Preferably, the locking assembly includes two hooks and two connecting rings. The two connecting rings are respectively fixedly sleeved on the outer sides of the corresponding connecting rods. The two hooks are respectively fixedly connected to the top and bottom of the water inlet pipe. A connecting rope is fixedly connected to the bottom of the connecting ring. A hanging ring is fixedly connected to the bottom end of the connecting rope. The hanging ring is movably clamped on the outer side of the hook.

[0012] Preferably, one end of the connecting rod extends to the outside of the water inlet pipe and is fixedly connected to a pulling plate.

[0013] Preferably, a driving shaft is fixedly connected to the output shaft of the driving motor. One end of the driving shaft is fixedly connected to the impeller in the sand pump body.

[0014] In the utility model, for the sand pump with a filtering structure, since the filter net is installed in the water inlet pipe, before the liquid enters the sand pump body, the sundries in the liquid can be filtered out first, avoiding the damage to the impeller in the sand pump body caused by the sundries in the liquid, and improving the service life of the sand pump body;

[0015] In the present utility model, for the sand pump with a filtering structure, the hanging ring is removed from the hook, so that the connecting rod is no longer limited and fixed. The connecting rod is pulled outwards, and the two connecting rods drive the two sliders and the clamping blocks to move away from each other and disengage from the clamping grooves, so that the limiting block and the filter net are no longer fixed. At this time, the filter net and the limiting block can be disassembled and cleaned or replaced. After cleaning, the filter net and the limiting block are pushed to the left, so that the limiting block slides into the limiting groove. At the same time, the limiting block automatically presses the clamping block, causing the clamping block to move outwards and compress the compression spring. When the limiting block is completely slid in, the clamping block is aligned with the clamping groove. Under the elastic force of the compression spring, the two clamping blocks approach each other and are clamped in the clamping groove to fix the filter net. To ensure the stability of the filter net installation, the hanging ring is hung on the hook. At this time, the connecting rope is in a taut state, making it impossible for the connecting rod, the slider and the clamping block to move outwards, so as to achieve the purpose of fixing the clamping block, greatly improving the stability of the clamping block in fixing the limiting block and the filter net, and enabling the filter net to stably filter the liquid;

[0016] The structure of the present utility model is reasonably designed. Since the filter net is installed in the water inlet pipe, before the liquid enters the sand pump body, the sundries in the liquid can be filtered out first, avoiding damage to the impeller in the sand pump body caused by the sundries in the liquid, improving the service life of the sand pump body, and facilitating the convenient and efficient installation and disassembly of the filter net, facilitating the subsequent cleaning and replacement of the filter net, and at the same time ensuring the stability during installation, enabling the filter net to filter stably. Description of the Drawings

[0017] Figure 1 is the first - perspective three - dimensional view of a sand pump with a filtering structure proposed by the present utility model;

[0018] Figure 2 is the second - perspective three - dimensional view of a sand pump with a filtering structure proposed by the present utility model;

[0019] Figure 3 is Figure 2 the structural schematic diagram of part A in

[0020] Figure 4 is the cross - sectional view of the water inlet pipe and the filter net of a sand pump with a filtering structure proposed by the present utility model;

[0021] Figure 5 is the three - dimensional view of the disassembly and replacement mechanism of a sand pump with a filtering structure proposed by the present utility model.

[0022] In the figure: 1. Driving motor; 2. Sand pump body; 3. Water outlet pipe; 4. Water inlet pipe; 5. Chute; 6. Driving shaft; 7. Filter screen; 8. Limiting groove; 9. Limiting block; 10. Long strip hole; 11. Connecting rod; 12. Connecting ring; 13. Pulling plate; 14. Connecting rope; 15. Hanging ring; 16. Hook; 17. Compression spring; 18. Slide block; 19. Locking block; 20. Card slot. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Refer to Figures 1-5 , a sand pump with a filtering structure, including a sand pump body 2 and a driving motor 1. The top of the sand pump body 2 is fixedly communicated with a water outlet pipe 3, and one side of the sand pump body 2 is fixedly communicated with a water inlet pipe 4. A filter screen 7 is fixedly connected inside the water inlet pipe 4. An assembly and disassembly and replacement mechanism is arranged between the filter screen 7 and the water inlet pipe 4. The assembly and disassembly and replacement mechanism includes a connection component and a locking component. A driving shaft 6 is fixedly connected to the output shaft of the driving motor 1, and one end of the driving shaft 6 is fixedly connected to the impeller inside the sand pump body 2.

[0025] Specifically, two limiting grooves 8 are opened on one side of the water inlet pipe 4, and sliding grooves 5 are opened on the inner walls of the two limiting grooves 8 away from each other. The connection component includes a limiting block 9 slidably connected in the limiting groove 8 and a compression spring 17 fixedly connected to the inner wall of the sliding groove 5. The two limiting blocks 9 are respectively fixedly connected to the top and bottom of the filter screen 7. Card slots 20 are opened on the sides of the two limiting blocks 9 away from each other. The two compression springs 17 are fixedly connected to slide blocks 18 on the sides close to each other. Locking blocks 19 are fixedly connected to the inner sides of the two slide blocks 18. The two locking blocks 19 are respectively movably clamped in the corresponding card slots 20. One side of the locking block 19 is in a slope shape. Pull the connecting rod 11 outwards, and the two connecting rods 11 drive the two slide blocks 18 and the locking blocks 19 to move away from each other and disengage from the card slots 20, so as not to fix the limiting block 9 and the filter screen 7. At this time, the filter screen 7 and the limiting block 9 can be disassembled and cleaned and replaced. After cleaning, align the limiting block 9 with the limiting groove 8, and push the filter screen 7 and the limiting block 9 to the left, so that the limiting block 9 slides into the limiting groove 8. At the same time, the limiting block 9 automatically presses the locking block 19, so that the locking block 19 moves outwards and presses the compression spring 17. When the limiting block 9 completely slides in, at this time, the locking block 19 is aligned with the card slot 20. Under the elastic force of the compression spring 17, the two locking blocks 19 approach each other and are clamped in the corresponding card slots 20, so as to fix the limiting block 9 and the filter screen 7.

[0026] Specifically, the two sliders 18 are respectively sleeved in the corresponding chutes 5, which facilitates guiding the sliders 18 and makes their lifting more stable.

[0027] Specifically, a connecting rod 11 is fixedly connected to one side of the slider 18, and two long strip holes 10 are formed in one side of the water inlet pipe 4. The two connecting rods 11 are respectively sleeved in the corresponding long strip holes 10, which can guide the connecting rods 11 and make their movement more stable and smooth.

[0028] Specifically, the locking assembly includes two hooks 16 and two connecting rings 12. The two connecting rings 12 are respectively fixedly sleeved on the outer sides of the corresponding connecting rods 11. The two hooks 16 are respectively fixedly connected to the top and bottom of the water inlet pipe 4. A connecting rope 14 is fixedly connected to the bottom of the connecting ring 12, and a hanging ring 15 is fixedly connected to the bottom end of the connecting rope 14. The hanging ring 15 is movably clamped on the outer side of the hook 16. When disassembling, the hanging ring 15 can be removed from the hook 16, so that the hanging ring 15 no longer limits and fixes the connecting rod 11. At this time, the filter net 7 can be disassembled. After installation, the hanging ring 15 is hung on the hook 16. At this time, the connecting rope 14 is in a straightened state. Thus, under the limit and fixation of the hook 16, the hanging ring 15, the connecting rope 14 and the connecting ring 12, the connecting rod 11, the slider 18 and the clamping block 19 cannot move outwards, so as to achieve the purpose of fixing the clamping block 19, greatly improving the stability of the clamping block 19 for installing and fixing the limiting block 9 and the filter net 7, and enabling the filter net 7 to stably filter the liquid.

[0029] Specifically, one end of the connecting rod 11 extends to the outside of the water inlet pipe 4 and is fixedly connected with a pull plate 13, which is convenient for pulling the connecting rod 11.

[0030] In the present utility model, during use, the driving motor 1 drives the rotation of the driving shaft 6 and the impeller in the sand pump body 2. The rotation of the impeller can extract the liquid, so that the liquid passes through the filtration of the filter screen 7, then enters the water inlet pipe 4, and finally is discharged from the water outlet pipe 3. Since the filter screen 7 is installed in the water inlet pipe 4, before the liquid enters the sand pump body 2, the sundries in the liquid can be filtered out first, avoiding damage to the impeller in the sand pump body 2 caused by the sundries in the liquid, and improving the service life of the sand pump body 2. When the filter screen 7 needs to be disassembled, cleaned and replaced, first remove the hanging ring 15 from the hook 16, so as not to limit and fix the connecting rod 11. At this time, the operator pulls the connecting rod 11 outwards through the pulling plate 13. The two connecting rods 11 drive the two sliders 18 and the clamping blocks 19 to move away from each other and disengage from the clamping grooves 20, so as not to fix the limiting block 9 and the filter screen 7. At this time, the filter screen 7 and the limiting block 9 can be disassembled for cleaning and replacement. After cleaning, align the limiting block 9 with the limiting groove 8, and push the filter screen 7 and the limiting block 9 to the left, so that the limiting block 9 slides into the limiting groove 8. At the same time, the limiting block 9 automatically presses the clamping block 19, causing the clamping block 19 to move outwards and compress the compression spring 17. When the limiting block 9 is completely slid in, at this time the clamping block 19 is aligned with the clamping groove 20. Under the elastic force of the compression spring 17, the two clamping blocks 19 approach each other and are clamped in the corresponding clamping grooves 20, so as to fix the limiting block 9 and the filter screen 7. In order to ensure the stability of the installation of the filter screen 7, finally hang the hanging ring 15 on the hook 16. At this time, the connecting rope 14 is in a taut state. Thus, under the limiting and fixing of the hook 16, the hanging ring 15, the connecting rope 14 and the connecting ring 12, the connecting rod 11, the slider 18 and the clamping block 19 cannot move outwards, so as to achieve the purpose of fixing the clamping block 19, greatly improving the stability of the installation and fixing of the clamping block 19 on the limiting block 9 and the filter screen 7, and enabling the filter screen 7 to stably filter the liquid.

Claims

1. A sand pump with a filtering structure, characterized in that: The invention comprises a sand pump body (2) and a driving motor (1), wherein the top of the sand pump body (2) is fixedly connected to a water outlet pipe (3), one side of the sand pump body (2) is fixedly connected to a water inlet pipe (4), a filter screen (7) is fixedly connected inside the water inlet pipe (4), and a disassembly, assembly and replacement mechanism is provided between the filter screen (7) and the water inlet pipe (4), the disassembly, assembly and replacement mechanism comprising a connecting component and a locking component.

2. A sand pump with a filtering structure according to claim 1, characterized in that: Two limit grooves (8) are provided on one side of the water inlet pipe (4), and a slide groove (5) is provided on the inner wall of the two limit grooves (8) away from each other. The connecting component comprises a limit block (9) slidably connected in the limit groove (8), and an extrusion spring (17) fixedly connected to the inner wall of the slide groove (5). The two limit blocks (9) respectively fix the connecting member at the top and bottom of the filter screen (7). A clamping groove (20) is provided on the side of the two limit blocks (9) away from each other. A slider (18) is fixedly connected to the side of the two extrusion springs (17) close to each other. A clamping block (19) is fixedly connected to the inner side of the two sliders (18), and the two clamping blocks (19) are respectively movably clamped in the corresponding clamping grooves (20).

3. A sand pump with a filtering structure according to claim 2, characterized in that: The two slide blocks (18) are respectively slidably mounted in the corresponding slide grooves (5).

4. A sand pump with a filtering structure according to claim 1, characterized in that: One side of the clamping block (19) is in a slope shape.

5. A sand pump with a filtering structure according to claim 2, characterized in that: One side of the slider (18) is fixedly connected to a connecting rod (11), one side of the water inlet pipe (4) is provided with two elongated holes (10), and the two connecting rods (11) are respectively slidably sleeved in the corresponding elongated holes (10).

6. A sand pump with a filtering structure according to claim 5, characterized in that: The locking assembly comprises two hooks (16) and two connecting rings (12); the two connecting rings (12) are respectively fixedly sleeved on the outside of the corresponding connecting rods (11); the two hooks (16) are respectively fixedly connected to the top and bottom of the water inlet pipe (4); the bottom of the connecting ring (12) is fixedly connected to a connecting rope (14); the bottom end of the connecting rope (14) is fixedly connected to a hanging ring (15); and the hanging ring (15) is movably clamped on the outside of the hook (16).

7. A sand pump with a filtering structure according to claim 5, characterized in that: One end of the connecting rod (11) extends to the outside of the water inlet pipe (4) and is fixedly connected to a pull plate (13).

8. A sand pump with a filtering structure according to claim 1, characterized in that: A drive shaft (6) is fixedly connected to the output shaft of the drive motor (1), and one end of the drive shaft (6) is fixedly connected to an impeller in the sand pump body (2).

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