Spraying pump with air suction prevention structure

Abstract

The utility model relates to the technical field of spraying pumps, in particular to a spraying pump with an air suction prevention structure. The spraying pump with the air suction prevention structure comprises a spraying pump body, water inlet pipes and a water drainage pipe are installed on the spraying pump body, water filter pipes are installed on the water inlet pipes, branch pipes are fixedly installed on the pipe sections, close to threaded openings, of the water filter pipes, and filter discs are installed in the water filter pipes. According to the spray pump with the air suction prevention structure, the filter disc is automatically pressed when the threaded sealing column is screwed through the cooperation of the sliding sleeve, the spring and the sliding rod, only the sealing column needs to be screwed out during disassembly, the spring pushes the filter disc to move outwards, one-button type taking-out is achieved, the maintenance time is greatly shortened, and when a channel is switched or a filter screen is cleaned, the filter disc can be conveniently taken out. The standby channel can immediately receive water flow to prevent the water inlet end from sucking air due to transient exposure, and the water flow is ensured to always fill the pipeline by combining the rear design of the connector of the filter disc and the branch pipe, so that the risk of air suction is thoroughly eliminated.

Description

Technical Field

[0001] This utility model relates to the field of spray pump technology, and in particular to a spray pump with an anti-vacuum structure. Background Technology

[0002] Sprinkler pumps, as key equipment for fluid transport, are widely used in fire fighting, industrial cooling, and agricultural irrigation. Traditional sprinkler pumps typically use a single filter screen structure in their inlet pipe. When the filter screen becomes clogged with impurities or needs cleaning, the pump must be stopped and the entire filter device disassembled, causing system interruption and severely impacting work efficiency. Furthermore, during disassembly, the pump body is prone to drawing in air due to the exposed inlet end, causing "cavitation" and leading to problems such as cavitation, increased vibration, and seal damage. This not only reduces the pump's service life but may also pose safety hazards. While some existing technologies feature dual-channel designs, they often lack rapid switching mechanisms, and the filter screen maintenance steps are cumbersome, making true online maintenance impossible.

[0003] Therefore, it is necessary to provide a new spray pump with an anti-vacuum structure to solve the above-mentioned technical problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a spray pump with an anti-vacuum structure.

[0005] The spray pump with anti-vacuum structure provided by this utility model includes a spray pump body, on which an inlet pipe and a drain pipe for water inlet and drainage are installed, and a T-pipe is fixedly installed on the inlet pipe.

[0006] A filter pipe is fixedly installed on each of the two branch pipes of the tee pipe, and a threaded opening is provided at the end of the filter pipe away from the tee pipe. A threaded sealing post for sealing the filter pipe is installed on the threaded opening, and a branch pipe is fixedly installed on the section of the filter pipe near the threaded opening.

[0007] A filter disc is installed inside the water filter pipe;

[0008] A valve A is fixedly installed at the junction of the filter pipe and the tee pipe, and a valve B is fixedly installed on the branch pipe.

[0009] Preferably, the filter disc is fixedly mounted with a central abutment disc coaxially arranged with the filter disc via multiple annularly distributed abutment frames, and a filter screen is fixedly embedded in the cavity between adjacent abutment frames. Multiple annularly distributed sliding sleeves are fixedly mounted on the outer wall of the filter disc.

[0010] Preferably, the inner wall of the filter pipe is provided with a plurality of annularly distributed and axially arranged sliding grooves, and each sliding groove is provided with a central connecting component.

[0011] Preferably, the connecting component includes a sliding rod, which is fixedly installed in a sliding groove, and a spring is sleeved on the sliding rod, with one end of the spring fixedly connected to the side wall of the sliding groove.

[0012] Preferably, an abutting rod is fixedly installed on the threaded sealing post, and the abutting rod abuts against the central abutting disc, driving the filter disc to slide to the rear side of the interface between the branch pipe and the filter pipe.

[0013] Preferably, the sliding sleeves on the filter disc are respectively inserted into the sliding grooves opened in the filter pipe and fitted into the sliding rod.

[0014] Compared with related technologies, the spray pump with anti-vacuum structure provided by this utility model has the following beneficial effects:

[0015] 1. The filter disc in this utility model automatically presses the filter disc when the threaded sealing column is tightened through the cooperation of the sliding sleeve, spring and sliding rod. When disassembling, only the sealing column needs to be unscrewed and the spring pushes the filter disc to move outward, realizing "one-click" removal, which greatly shortens the maintenance time. When switching channels or cleaning the filter screen, the backup channel can immediately connect to the water flow, avoiding the intake of air due to the brief exposure of the water inlet. Combined with the rear-mounted interface design of the filter disc and the branch pipe, it ensures that the water flow always fills the pipe and completely eliminates the risk of air intake.

[0016] 2. The spray pump body of this utility model is connected to two independent filter pipes and branch pipes through a three-way pipe. With the switching of valve A and valve B, one channel can be closed for filter cleaning or maintenance without interrupting the operation of the pump body, while the backup channel is activated, thus completely eliminating the efficiency loss caused by downtime maintenance. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the spray pump with anti-vacuum structure provided by this utility model;

[0018] Figure 2 for Figure 1 A cross-sectional view of the filter pipe shown.

[0019] Figure 3 for Figure 2 A magnified structural diagram of point A is shown below;

[0020] Figure 4 for Figure 3 The diagram shows the structure of the filter disc.

[0021] Figure 5 for Figure 3 A magnified structural diagram of point B is shown below;

[0022] Figure 6 for Figure 1The diagram shows the structure of the threaded sealing column.

[0023] The following are the labels in the diagram: 1. Spray pump body; 11. Inlet pipe; 12. Drain pipe; 13. Tee pipe; 2. Filter pipe; 21. Valve A; 22. Threaded port; 2a. Sliding groove; 3. Branch pipe; 31. Valve B; 4. Filter disc; 41. Central abutment disc; 42. Connecting frame; 43. Sliding sleeve; 44. Filter screen; 5. Threaded sealing column; 51. Abutment rod; 6. Central assembly; 61. Sliding rod; 62. Spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 6 The present invention provides a spray pump with an anti-vacuum structure, which includes a spray pump body 1, a water filter pipe 2, and a filter disc 4.

[0027] In the embodiments of this utility model, please refer to Figures 1 to 6 The spray pump body 1 is equipped with an inlet pipe 11 and a drain pipe 12 for water inlet and drainage. A tee pipe 13 is fixedly installed on the inlet pipe 11. A filter pipe 2 is fixedly installed on each of the two branch pipes of the tee pipe 13. A threaded port 22 is opened at the end of the filter pipe 2 away from the tee pipe 13. A threaded sealing post 5 for sealing the filter pipe 2 is installed on the threaded port 22. A branch pipe 3 is fixedly installed on the section of the filter pipe 2 near the threaded port 22. A valve A21 is fixedly installed at the joint between the filter pipe 2 and the tee pipe 13. A valve B31 is fixedly installed on the branch pipe 3.

[0028] It should be noted that: connect the two branch pipes 3 to the drain outlets of the water supply pipe one by one (the water supply pipe uses a T-connector to set up two drain outlets). When in use, open the valve on the inlet pipe structure consisting of one set of filter pipes 2 and branch pipes 3, and close the valve on the other set of inlet pipe structures consisting of filter pipes 2 and branch pipes 3. When the inlet pipe structure is damaged or the internal filter screen 44 needs to be cleaned, close the valve on that set of inlet pipe structures and open the valve on the other set of inlet pipe structures. This prevents the spray pump body 1 from sucking in air at the suction end or running in an "idle" state, and eliminates the hidden danger of the spray pump body 1 being shut down for a long time due to damage to the inlet pipe structure or the need to clean the internal filter screen 44, which would lead to a decrease in the working efficiency of the spray pump body 1.

[0029] Therefore, the main body 1 of this spray pump is connected to two independent filter pipes 2 and branch pipes 3 through a three-way pipe 13. With the switching of valves A21 and B31, one channel can be closed for cleaning or maintenance of filter screen 44 without interrupting the operation of the pump body, while the backup channel is activated, thus completely eliminating the efficiency loss caused by downtime maintenance.

[0030] In the embodiments of this utility model, please refer to Figures 1 to 6 The filter pipe 2 is equipped with a filter disc 4. Specifically, the filter disc 4 is fixedly installed with a central abutment disc 41 coaxially arranged with the filter disc 4 through multiple annularly distributed docking frames 42. A filter screen 44 is fixedly embedded in the cavity between adjacent docking frames 42. Multiple annularly distributed sliding sleeves 43 are fixedly installed on the outer wall of the filter disc 4.

[0031] The inner wall of the filter pipe 2 has several annularly distributed and axially arranged sliding grooves 2a. Each sliding groove is equipped with a central connecting component 6, which includes a sliding rod 61. The sliding rod 61 is fixedly installed in the sliding groove 2a and sleeved in the sliding rod 61. A spring 62 is sleeved on the sliding rod 61. One end of the spring 62 is fixedly connected to the side wall of the sliding groove 2a. The sliding sleeves 43 on the filter disc 4 are respectively inserted into the sliding grooves 2a of the filter pipe 2. An abutting rod 51 is fixedly installed on the threaded sealing column 5. The abutting rod 51 abuts against the central abutting disc 41, driving the filter disc 4 to slide to the rear side of the interface between the branch pipe 3 and the filter pipe 2.

[0032] It should be noted that when installing the filter disc 4, the sliding sleeve 43 on the filter disc 4 is inserted into the sliding groove 2a opened in the water filter pipe 2 and fitted into the sliding rod 61. Then, the threaded sealing post 5 is inserted into the threaded opening 22 at the end of the water filter pipe 2 for threaded fixation. As the threaded sealing post 5 is screwed in along the threaded opening 22, the abutting rod 51 abuts against the central abutting disc 41. Therefore, the filter disc 4 slides along the sliding rod 61 with the sliding sleeve 43 and compresses the spring 62. After the threaded sealing post 5 is screwed tightly on the threaded opening 22, the filter disc 4 slides to the rear side of the interface between the branch pipe 3 and the water filter pipe 2. Therefore, the water in the branch pipe 3 and the water entering the water filter pipe 2 can be filtered by the filter screen 44.

[0033] When it is necessary to clean the filter screen 44 on the filter disc 4, after unscrewing the threaded sealing post 5, the sliding sleeve 43 is driven to slide outward along the sliding rod 61 under the elastic force of the spring 62, so the filter disc 4 can be quickly removed from the water filter pipe 2. The operation is simple and convenient.

[0034] In this solution, the filter disc 4 automatically presses against the threaded sealing column 5 when the sliding sleeve 43, spring 62 and sliding rod 61 are tightened. When disassembling, only the sealing column 5 needs to be unscrewed and the spring 62 pushes the filter disc 4 outward, realizing "one-click" removal, which greatly shortens the maintenance time. When switching channels or cleaning the filter screen 44, the backup channel can immediately take over the water flow, avoiding the intake end from sucking in air due to temporary exposure. Combined with the rear-mounted interface design of the filter disc 4 and the branch pipe 3, it ensures that the water flow always fills the pipe, completely eliminating the risk of air suction.

[0035] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A spray pump with anti-suction structure, comprising a spray pump body (1), a water inlet pipe (11) and a water outlet pipe (12) are installed on the spray pump body (1) for water inlet and water outlet, and a tee pipe (13) is fixedly installed on the water inlet pipe (11), characterized in that: two branch pipes of the tee pipe (13) are fixedly installed with water filter pipes (2), and a threaded opening (22) is formed at the end opening of the water filter pipe (2) away from the tee pipe (13), a threaded sealing column (5) for sealing the water filter pipe (2) is installed on the threaded opening (22), and a branch pipe (3) is fixedly installed on the pipe section of the water filter pipe (2) close to the threaded opening (22); a filter disc (4) is installed in the water filter pipe (2); a valve A (21) is fixedly installed at the joint of the water filter pipe (2) and the tee pipe (13), and a valve B (31) is fixedly installed on the branch pipe (3).

2. The spray pump with a suction prevention structure according to claim 1, wherein The filter disc (4) is fixedly installed with a central abutting disc (41) coaxially arranged with the filter disc (4) through a plurality of annularly distributed abutting frames (42), a filter screen (44) is fixedly embedded in the cavity between adjacent abutting frames (42), and a plurality of annularly distributed sliding sleeves (43) are fixedly installed on the outer disc wall of the filter disc (4).

3. The spray pump with a suction prevention structure according to claim 1, wherein A plurality of annularly distributed and axially arranged sliding grooves (2a) are formed in the inner pipe wall of the water filter pipe (2), and a middle connecting assembly (6) is arranged in each sliding groove.

4. The spray pump with a suction prevention structure according to claim 3, characterized by, The middle connecting assembly (6) comprises a sliding rod (61) fixedly installed in the sliding groove (2a), and a spring (62) is sleeved on the sliding rod (61), one end of the spring (62) is fixedly connected with the side wall of the sliding groove (2a).

5. The spray pump with a suction prevention structure according to claim 4, characterized by, An abutting rod (51) is fixedly installed on the threaded sealing column (5), the filter disc (4) is driven to slide to the rear side of the interface between the branch pipe (3) and the water filter pipe (2) by abutting the central abutting disc (41) through the abutting rod (51).

6. The spray pump with a suction prevention structure according to claim 3, wherein The sliding sleeves (43) on the filter disc (4) are respectively inserted into the sliding grooves (2a) formed in the water filter pipe (2) and sleeved on the sliding rods (61).

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