A pneumatic grouting pump with anti-clogging function

Abstract

This utility model discloses a pneumatic grouting pump with anti-clogging function, including a suction pipe with a filter screen cylinder threaded at the bottom end. An anti-clogging component is provided outside the suction pipe, comprising a hollow shell and a threaded cylinder. A lead screw sleeve, a protective cover, and a driven gear are sequentially fitted around the threaded cylinder. The hollow shell also has a drive gear driven by a first motor. The protective cover is connected to the lead screw sleeve via a keyway structure, and several connecting plates are fixedly connected to the bottom surface of the lead screw sleeve. A second screen plate is fixedly connected to the bottom of the filter screen cylinder, and a first screen plate is movably fitted around the outside of the filter screen cylinder. This utility model can actively and efficiently squeeze, shear, and crush grout lumps attached to the filter screen cylinder, effectively preventing filter screen blockage and indirect blockage caused by grout lump aggregation, thus avoiding clogging, significantly improving filtration efficiency and pump flow stability, and ensuring the continuity of grouting operations.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic grouting pump technology, specifically a pneumatic grouting pump with anti-clogging function. Background Technology

[0002] Currently, some pneumatic grouting pumps are installed directly above the hopper. During use, water and materials are added directly to the inside of the hopper and stirred to form a slurry. Then, the pneumatic grouting pump extracts the slurry from the hopper. To prevent some unevenly stirred lumps from being drawn into the pneumatic grouting pump and causing damage to the pump body, a filter screen is usually installed at the opening of the pneumatic grouting pump extraction pipe. However, the filter screen may become clogged during use, which may affect subsequent extraction.

[0003] Publication No. CN222010473U discloses a pneumatic grouting pump, comprising: an extraction pipe, with a pump body fixedly connected to the top end of the extraction pipe and a filter cover rotatably connected to the bottom end of the extraction pipe; a rotating mechanism, which is mounted on the extraction pipe and drivesly engages with the filter cover; and a cleaning mechanism, comprising a base fixedly connected to the bottom of the extraction pipe, the outer wall of the base contacting the inner wall of the filter cover, and a plurality of grooves evenly spaced along the axis on the outer circumferential surface of the base, with protrusions slidably connected in the grooves, and spring sheets fixedly connected between the protrusions and the bottom of the grooves; wherein, the plurality of protrusions are respectively arranged one-to-one with the filter holes on the filter cover located in the same vertical column. This utility model uses the elastic sheet on the base in conjunction with the protrusions to clean the filter holes on the filter cover, avoiding filter hole clogging. However, this patent still has the following problems in actual use:

[0004] The above-mentioned device can only perform simple cleaning of the filter cover. However, due to the suction of the pump body, the clumps of raw materials will still accumulate outside the filter cover. Although they cannot block the filter screen itself, the accumulation of slurry clumps will create a barrier effect, directly affecting the efficiency of slurry entering the filter screen and causing indirect blockage.

[0005] A pneumatic grouting pump with anti-clogging function is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a pneumatic grouting pump with anti-clogging function to solve the problem that the above-mentioned device in the background art can only perform simple cleaning of the filter cover. However, due to the suction of the pump body, the clumps of raw materials will still accumulate outside the filter cover. Although they cannot block the filter screen itself, the accumulation of slurry clumps will have a blocking effect, directly affecting the efficiency of slurry entering the filter screen and causing indirect clogging.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic grouting pump with anti-clogging function, including a grout suction pipe, wherein a filter screen is threadedly installed at the bottom end of the grout suction pipe;

[0008] An anti-clogging component is provided on the outside of the suction pipe. The anti-clogging component includes a hollow shell and a threaded cylinder. A screw sleeve is threaded on the outside of the threaded cylinder. A protective cover is fitted on the outside of the screw sleeve. A driven gear is fixedly connected to the top of the protective cover. A first motor is fixedly connected to one side of the top surface of the hollow shell. A driving gear is fixedly connected to the output end of the first motor.

[0009] The inner wall of the protective cover is provided with several guide grooves, several connecting blocks are fixedly connected to the outside of the lead screw sleeve, and several connecting plates are fixedly connected to the bottom surface of the lead screw sleeve.

[0010] The bottom of the filter cylinder is fixedly connected to a second mesh plate, and the outside of the filter cylinder is movably fitted with a first mesh plate.

[0011] Preferably, the suction pipe passes through the middle of the hollow shell and the threaded cylinder, and the suction pipe is fixedly connected to the top surface of the hollow shell and the threaded cylinder, and the protective cover is rotatably connected to the bottom surface of the hollow shell.

[0012] Preferably, the guide groove is slidably connected to the connecting block, the driven gear is located inside the hollow shell, and the driving gear is also located inside the hollow shell, and the driven gear and the driving gear are meshed together.

[0013] Preferably, the bottom end of the connecting plate is fixedly connected to the outer side of the first mesh plate, and the plurality of connecting plates are distributed in a circular pattern.

[0014] Preferably, the outer surface of the threaded cylinder has a reciprocating texture.

[0015] Preferably, the bottom of the filter cylinder is hinged with a lower screw cap.

[0016] Preferably, the bottom surface of the filter screen cylinder is provided with a threaded hole, and a bolt is connected through one side of the lower cap, and the bolt is threadedly connected to the threaded hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this pneumatic grouting pump with anti-clogging function actively and efficiently crushes grout blocks through the relative movement of the first and second screen plates, thereby effectively preventing filter cartridge clogging and ensuring continuous and efficient operation of grouting. The specific details are as follows:

[0018] 1. Through the relative movement of the first and second screen plates, multi-level crushing of the slurry lumps attached to the filter cylinder is performed. This design not only effectively squeezes, shears, and crushes large, clogging slurry lumps into fine particles, preventing them from accumulating on the filter surface and forming blockages, but also makes the crushed particles easier to flow with the slurry, avoiding the risk of secondary blockage. Compared with traditional passive filtration or single rotary scraping methods, this component can continuously and actively clean the filter surface, significantly improving filtration efficiency and pump flow stability, reducing the frequency of downtime maintenance due to blockages, and thus ensuring the continuity and efficiency of the entire grouting operation process.

[0019] 2. The bottom of the filter cylinder is openable through a hinged and bolted fixing method. When it is necessary to clean the impurities accumulated inside the filter cylinder or perform routine maintenance, simply loosen and remove the bolts to unscrew the lower cap around the hinge point like a door, allowing the filter cylinder to be fully open from the bottom. The structure has changed from a closed cylindrical structure to a pipe structure that is open at both ends, allowing cleaning tools to be inserted into the cylinder for thorough cleaning without obstruction, or to be rinsed in both directions with a high-pressure water gun. This fundamentally solves the pain points of traditional closed filter cylinders, such as difficulty in cleaning and inaccessibility of internal corners, significantly shortening cleaning time, reducing maintenance workload, and improving the maintainability of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the installation structure of the lead screw sleeve and the connecting plate;

[0022] Figure 3 A schematic diagram of the front cross-section of the hollow shell and protective cover installation structure;

[0023] Figure 4 for Figure 2 Enlarged structural diagram at point A;

[0024] Figure 5 This is a schematic diagram of the installation structure of the lower screw cap and the filter screen cylinder.

[0025] In the diagram: 1. Suction pipe; 101. Filter screen cylinder; 2. Anti-clogging component; 201. Hollow shell; 202. Threaded cylinder; 203. Lead screw sleeve; 204. Protective cover; 205. Driven gear; 206. First motor; 207. Drive gear; 208. Guide groove; 209. Connecting block; 210. Connecting plate; 211. First screen plate; 212. Second screen plate; 3. Lower cap; 301. Threaded hole; 302. Bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 The present invention provides a technical solution: a pneumatic grouting pump with anti-clogging function, including a grouting pipe 1, and a filter screen 101 threadedly installed at the bottom end of the grouting pipe 1;

[0028] An anti-clogging component 2 is provided on the outside of the suction pipe 1. The anti-clogging component 2 includes a hollow shell 201 and a threaded cylinder 202. A screw sleeve 203 is threaded onto the outside of the threaded cylinder 202. A protective cover 204 is fitted onto the outside of the screw sleeve 203. A driven gear 205 is fixedly connected to the top of the protective cover 204. A first motor 206 is fixedly connected to one side of the top surface of the hollow shell 201. A driving gear 207 is fixedly connected to the output end of the first motor 206. Several guide grooves 208 are provided on the inner wall of the protective cover 204. Several connecting blocks 209 are fixedly connected to the outside of the screw sleeve 203. Several connecting plates 210 are fixedly connected to the bottom surface of the screw sleeve 203. A second screen plate 212 is fixedly connected to the bottom of the filter screen cylinder 101. A first screen plate 211 is movably fitted onto the outside of the filter screen cylinder 101. When the equipment is working, the first motor 206 is started. Through the transmission structure of the driving gear 207 and the driven gear 205, the protective cover 204 rotates. The screw sleeve 203 rotates while simultaneously reciprocating axially, utilizing the keyway function formed by the guide groove 208 and the connecting block 209. The rotation of the screw sleeve 203 drives the first screen plate 211 to rotate via the connecting plate 210, and the lifting and lowering of the screw sleeve 203 drives the first screen plate 211 to lift and lower synchronously. This causes the slurry lumps adhering to the outside of the filter screen cylinder 101 due to the suction force of the suction pipe 1 to be crushed by the relative rotation of the first screen plate 211 and the second screen plate 212. The initially crushed slurry is further ground and broken as it passes through the mesh of the first screen plate 211 and the second screen plate 212, preventing blockage and facilitating subsequent use. This prevents large pieces of slurry from accumulating on the surface of the filter screen cylinder 101 and forming blockages, thus ensuring the smooth flow of slurry through the filter screen cylinder 101 into the suction pipe 1. The number of guide grooves 208, connecting blocks 209, and connecting plates 210 is not less than four.

[0029] The suction pipe 1 passes through the middle of the hollow shell 201 and the threaded cylinder 202, and is fixedly connected to the top surface of the hollow shell 201 and the threaded cylinder 202. The protective cover 204 is rotatably connected to the bottom surface of the hollow shell 201. The guide groove 208 is slidably connected to the connecting block 209. The driven gear 205 is located inside the hollow shell 201, and the driving gear 207 is also located inside the hollow shell 201. The driven gear 205 and the driving gear 207 are meshed. The hollow shell 201 can provide protection for the driving gear 207 and the driven gear 205. The bottom surface of the hollow shell 201 is provided with a clearance hole, and the protective cover 204 is installed in the clearance hole through a bearing. The suction pipe 1 passes through the clearance hole.

[0030] The bottom end of the connecting plate 210 is fixedly connected to the outer side of the first mesh plate 211, and several connecting plates 210 are distributed in a circle.

[0031] The threaded cylinder 202 has reciprocating textures on its exterior; the threaded cylinder 202 is essentially a hollow reciprocating screw, through which the suction pipe 1 is fixed.

[0032] The bottom of the filter cylinder 101 is hinged with a lower cap 3; one side of the lower cap 3 is connected to the filter cylinder 101, and the lower cap 3 can cover the bottom of the filter cylinder 101.

[0033] The bottom surface of the filter cylinder 101 is provided with a threaded hole 301, and a bolt 302 is connected through one side of the lower cap 3, and the bolt 302 is threadedly connected to the threaded hole 301. When the filter cylinder 101 is disassembled for cleaning, the bolt 302 can also be removed so that the lower cap 3 can be rotated open. This allows the filter cylinder 101 to be in a through state during cleaning, changing the filter cylinder 101 from a cylindrical structure closed at one end to a pipe structure with both ends open, which greatly facilitates the internal cleaning work.

[0034] Working principle: Before using this pneumatic grouting pump with anti-clogging function, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5 As shown, the first motor 206 in the anti-blocking component 2 is activated, driving the drive gear 207 to rotate, and causing the driven gear 205 meshing with it to rotate.

[0035] Driven gear 205 is fixedly connected to protective cover 204, thereby driving protective cover 204 to rotate at the bottom of hollow shell 201. Guide groove 208 on the inner wall of protective cover 204 slides into connection with connecting block 209 fixed to the outside of lead screw sleeve 203, forming a guide keyway structure. This structure allows lead screw sleeve 203 to rotate with protective cover 204 while being driven by the reciprocating thread of the inner threaded cylinder 202, producing a regular axial reciprocating lifting motion. Lead screw sleeve 203, through connecting plate 210 at its bottom, drives the first screen plate 211 to synchronously perform a combined rotation and lifting motion. At this time, the second screen plate 212 fixed to the bottom of filter screen cylinder 101 forms relative motion with the moving first screen plate 211.

[0036] Under the suction of the suction pipe 1, the large slurry blocks attached to the outside of the filter screen cylinder 101 are first squeezed, sheared and initially crushed by the relative rotation of the first screen plate 211 and the second screen plate 212.

[0037] Subsequently, the initially crushed slurry is further ground and broken as it passes through the mesh of the first screen 211 and the second screen 212. This process effectively prevents slurry lumps from clogging the filter cylinder 101 and crushes large slurry lumps to a size that is easy to pass through the mesh and flow with the slurry, thereby ensuring the efficiency of the slurry smoothly passing through the filter cylinder 101 into the suction pipe 1.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pneumatic grouting pump with anti-clogging function, comprising a grout suction pipe (1), wherein a filter screen cylinder (101) is threadedly installed at the bottom end of the grout suction pipe (1); Its features are, Also includes: The suction pipe (1) is provided with an anti-blocking component (2). The anti-blocking component (2) includes a hollow shell (201) and a threaded cylinder (202). The threaded cylinder (202) is threaded with a screw sleeve (203). The screw sleeve (203) is covered with a protective cover (204). The top of the protective cover (204) is fixedly connected to a driven gear (205). The top surface of the hollow shell (201) is fixedly connected to a first motor (206). The output end of the first motor (206) is fixedly connected to a driving gear (207). The inner wall of the protective cover (204) is provided with several guide grooves (208), the outside of the lead screw sleeve (203) is fixedly connected with several connecting blocks (209), and the bottom surface of the lead screw sleeve (203) is fixedly connected with several connecting plates (210). The bottom of the filter cylinder (101) is fixedly connected to a second mesh plate (212), and the outside of the filter cylinder (101) is movably fitted with a first mesh plate (211).

2. A pneumatic grouting pump with anti-clogging function according to claim 1, characterized in that: The suction pipe (1) penetrates the middle of the hollow shell (201) and the threaded cylinder (202), and the suction pipe (1) is fixedly connected to the top surface of the hollow shell (201), the suction pipe (1) is fixedly connected to the threaded cylinder (202), and the protective cover (204) is rotatably connected to the bottom surface of the hollow shell (201).

3. A pneumatic grouting pump with anti-clogging function according to claim 1, characterized in that: The guide groove (208) is slidably connected to the connecting block (209). The driven gear (205) is located inside the hollow shell (201), and the driving gear (207) is also located inside the hollow shell (201). The driven gear (205) and the driving gear (207) are meshed together.

4. A pneumatic grouting pump with anti-clogging function according to claim 1, characterized in that: The bottom end of the connecting plate (210) is fixedly connected to the outer side of the first mesh plate (211), and a plurality of the connecting plates (210) are distributed in a circular pattern.

5. A pneumatic grouting pump with anti-clogging function according to claim 1, characterized in that: The threaded cylinder (202) has a reciprocating texture on its exterior.

6. A pneumatic grouting pump with anti-clogging function according to claim 1, characterized in that: The bottom of the filter cylinder (101) is hinged with a lower screw cap (3).

7. A pneumatic grouting pump with anti-clogging function according to claim 6, characterized in that: The bottom surface of the filter cylinder (101) is provided with a threaded hole (301), and a bolt (302) is connected through one side of the lower cap (3), and the bolt (302) is threadedly connected to the threaded hole (301).

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