Gear pump with filtering structure

Abstract

The utility model discloses a gear pump with a filtering structure, which belongs to the technical field of gear pumps and is characterized by comprising a gear pump, a liquid inlet is fixedly arranged on one side of the gear pump, a conical pipe is movably arranged on one side of the liquid inlet, a first pipeline is fixedly communicated with one side of the conical pipe, and a disc is fixedly connected to the joint of the conical pipe and the first pipeline. Four through grooves are formed in one side of the disc, sliding grooves are formed in the inner side walls of the through grooves, sliding blocks are movably arranged in the through grooves, sliding plates are fixedly connected to one sides of the sliding blocks, the sliding plates are slidably connected into the sliding grooves, threaded rods are in threaded connection with the middles of the sliding blocks, extrusion blocks are fixedly connected to one ends of the threaded rods, and nuts are in threaded connection with the other ends of the threaded rods. A filter screen is movably arranged at the other end of the first pipeline. The device has the effects that the device can adapt to gear pumps with liquid inlets with different diameters, and the applicability of the device is improved; and the filter screen can be automatically cleaned, so that the service life of the device is prolonged.

Description

Technical Field

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

[0002] A gear pump is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gears to transport liquid or increase its pressure. It consists of two closed spaces, two gears, a pump body, and front and rear covers. When the gears rotate, the volume of the space on the side where the gears are disengaged changes from small to large, forming a vacuum, sucking in the liquid, and the volume of the space on the side where the gears are meshing changes from large to small, squeezing the liquid into the pipeline. The suction chamber and the discharge chamber are separated by the meshing line of the two gears. The pressure of the gear pump's discharge port depends entirely on the size of the resistance at the pump outlet. When the gear pump is in use, the impurities in the sucked liquid may affect the movement of the gears. Therefore, a gear pump with a filtering structure has been developed.

[0003] At present, the filtering structure used in gear pumps is mostly fixed on the water inlet of the gear pump during installation or use. The diameter of the filtering structure corresponds to the water inlet size, and the diameter is relatively fixed, which makes the filtering structure unable to be used for gear pumps with other water inlet sizes, resulting in low applicability. In addition, during operation, due to excessive impurities, the surface of the filter screen will be covered with a large amount of impurities, and even the filter screen will be blocked. During the operation, it is difficult to clean the impurities on the surface of the filter screen, which reduces the service life of the device. Utility Model Content

[0004] The purpose of the utility model is to provide a gear pump with a filtering structure to solve the problems raised in the above background technology.

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

[0006] A gear pump with a filtering structure comprises a gear pump, wherein a liquid inlet is fixedly provided on one side of the gear pump, a liquid outlet is fixedly provided on the other side of the gear pump, a tapered tube is movably provided on one side of the liquid inlet, a pipe 1 is fixedly connected to one side of the tapered tube, a disc is fixedly connected to the connection between the tapered tube and the pipe 1, four through grooves are provided on one side of the disc, a sliding groove is provided on the inner side wall of the through groove, a slider is movably provided in the through groove, a sliding plate is fixedly connected to one side of the slider, and the sliding plate is slidably connected to the inside of the sliding groove, a threaded rod is threadedly connected in the middle of the slider, an extrusion block is fixedly connected to one end of the threaded rod, a nut is threadedly connected to the other end of the threaded rod, and a filter is movably provided at the other end of the pipe 1.

[0007] Preferably, the other side of pipe one is also rotatably connected to pipe two, a buckle is fixedly provided on one side of pipe two and located at the connection between pipe one and pipe two, a bracket is fixedly connected to one side of the inside of pipe two, a rotating shaft is rotatably connected to the middle of the bracket, a brush is fixedly connected to one side of the rotating shaft, and a guide plate is fixedly connected to the outside of the rotating shaft.

[0008] Preferably, a slag collecting pipe is fixedly connected to the bottom of one side of the pipeline 2, and a slag collecting box is threadedly connected to the bottom of the slag collecting pipe.

[0009] Preferably, a rubber ring 1 is fixedly provided on one side of the outer portion of the conical tube, and a rubber ring 2 is fixedly provided on one side of the liquid inlet.

[0010] Preferably, a rubber ring three is fixedly provided inside one side of the pipe and located on one side of the filter screen.

[0011] Preferably, a rubber ring four is fixedly provided inside one side of the pipe two.

[0012] Preferably, the contact surfaces of the rubber ring 1 and the rubber ring 2 are matched.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is provided with a tapered tube, a disc, a through groove, a sliding groove, a slider, a sliding plate, a threaded rod, an extrusion block, a nut, a rubber ring 1 and a rubber ring 2. When the filter mechanism and the gear pump are connected, the threaded rod is rotated to drive the extrusion block to extrude the raised part at the liquid inlet, so that the liquid inlet is tightly attached to the outer side of the tapered tube, and the nut is rotated to lock the threaded rod to increase reliability. When the gear pump with a liquid inlet of different diameter is replaced, it only needs to replace the rubber ring 2 of the corresponding diameter to install it, thereby improving the applicability of the device; a bracket, a rotating shaft, a brush, a guide plate, a slag collecting pipe and a slag collecting box are provided. The guide plate is driven to rotate by the flow of liquid, thereby driving the rotating shaft and the brush to rotate, so that the filter screen can be cleaned, and the cleaned impurities fall into the slag collecting box through the slag collecting pipe, which can automatically clean the filter screen, thereby increasing the service life of the device.

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 The utility model is an overall structural diagram of a gear pump with a filtering structure.

[0018] Figure 2 The utility model is an overall structural diagram of a gear pump with a filtering structure.

[0019] Figure 3 This is an overall cross-sectional view of a gear pump with a filtering structure according to the utility model.

[0020] Figure 4 This is a partial structural diagram of a gear pump with a filtering structure of the utility model.

[0021] Figure 5 This is an enlarged view of position A of a gear pump with a filtering structure of the present invention.

[0022] In the figure: 1. gear pump; 2. liquid inlet; 3. liquid outlet; 4. tapered tube; 5. pipe one; 6. disc; 7. through groove; 8. sliding groove; 9. slider; 10. sliding plate; 11. threaded rod; 12. extrusion block; 13. nut; 14. filter screen; 15. pipe two; 16. buckle; 17. bracket; 18. rotating shaft; 19. brush; 20. guide plate; 21. slag collecting pipe; 22. slag collecting box; 23. rubber ring one; 24. rubber ring two; 25. rubber ring three; 26. rubber ring four. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-5 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Reference Figures 1 to 5 ,

[0027] The utility model provides a gear pump with a filtering structure for further explanation.

[0028] A gear pump with a filtering structure comprises a gear pump 1, a liquid inlet 2 is fixedly provided on one side of the gear pump 1, a liquid outlet 3 is fixedly provided on the other side of the gear pump 1, a tapered tube 4 is movably provided on one side of the liquid inlet 2, a pipeline 5 is fixedly connected to one side of the tapered tube 4, a disc 6 is fixedly connected to the connection between the tapered tube 4 and the pipeline 5, four through grooves 7 are provided on one side of the disc 6, a sliding groove 8 is provided on the inner side wall of the through groove 7, a slider 9 is movably provided in the through groove 7, a sliding plate 10 is fixedly connected to one side of the slider 9, and the sliding plate 10 is slidably connected to the inside of the sliding groove 8, a threaded rod 11 is threadedly connected in the middle of the slider 9, an extrusion block 12 is fixedly connected to one end of the threaded rod 11, a nut 13 is threadedly connected to the other end of the threaded rod 11, and a filter screen 14 is movably provided at the other end of the pipeline 5.

[0029] A rubber ring 1 23 is fixedly provided on one side of the outer portion of the conical tube 4 , and a rubber ring 24 is fixedly provided on one side of the liquid inlet 2 .

[0030] The contact surfaces of the rubber ring 1 23 and the rubber ring 2 24 are matched.

[0031] When the filter mechanism and the gear pump 1 are connected, the threaded rod 11 is rotated to drive the extrusion block 12 to squeeze the raised part of the liquid inlet 2, so that the liquid inlet 2 is close to the outside of the tapered tube 4, and the nut 13 is rotated to lock the threaded rod 11 to increase reliability. When replacing the gear pump 1 with a liquid inlet 2 of a different diameter, only the rubber ring 24 of the corresponding diameter needs to be replaced to install it, thereby improving the applicability of the device.

[0032] See also Figure 1-5 In this embodiment, the other side of pipe 1 5 is also rotatably connected to pipe 2 15, a buckle 16 is fixedly provided on one side of pipe 2 15 and at the connection between pipe 1 5 and pipe 2 15, a bracket 17 is fixedly connected to one side of the inside of pipe 2 15, a rotating shaft 18 is rotatably connected in the middle of the bracket 17, a brush 19 is fixedly connected to one side of the rotating shaft 18, and a guide plate 20 is fixedly connected to the outer side of the rotating shaft 18.

[0033] A slag collecting pipe 21 is fixedly connected to the bottom of one side of the pipeline 2 15 , and a slag collecting box 22 is threadedly connected to the bottom of the slag collecting pipe 21 .

[0034] A rubber ring 3 25 is fixedly provided inside one side of the pipe 1 5 and located on one side of the filter screen 14 .

[0035] A rubber ring 26 is fixedly disposed inside one side of the pipe 2 15 .

[0036] The flow of liquid drives the guide plate 20 to rotate, thereby driving the rotating shaft 18 and the hair spindle 19 to rotate, so that the filter screen 14 can be cleaned, and the cleaned impurities fall into the slag collecting box 22 through the slag collecting pipe 21, which can automatically clean the filter screen 14, thereby increasing the service life of the device.

[0037] It should be noted that the standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part are connected by conventional means such as mature bolts, rivets, welding, etc. in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, and no specific description is given here.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear pump with a filtering structure, comprising a gear pump (1), characterized in that: A liquid inlet (2) is fixedly provided on one side of the gear pump (1), and a liquid outlet (3) is fixedly provided on the other side of the gear pump (1). A conical tube (4) is movably provided on one side of the liquid inlet (2). A pipe (5) is fixedly connected to one side of the conical tube (4). A disc (6) is fixedly connected to the connection between the conical tube (4) and the pipe (5). Four through grooves (7) are provided on one side of the disc (6). A sliding groove (8) is provided on the inner side wall of the through groove (7). A slider (9) is movably provided in the through groove (7). A sliding plate (10) is fixedly connected to one side of the slider (9), and the sliding plate (10) is slidably connected to the inside of the sliding groove (8). A threaded rod (11) is threadedly connected in the middle of the slider (9). An extrusion block (12) is fixedly connected to one end of the threaded rod (11), and a nut (13) is threadedly connected to the other end of the threaded rod (11). A filter screen (14) is movably provided at the other end of the pipe (5).

2. A gear pump with a filtering structure as claimed in claim 1, characterized in that: The other side of the pipe one (5) is also rotatably connected to the pipe two (15); a buckle (16) is fixedly provided on one side of the pipe two (15) and at the connection between the pipe one (5) and the pipe two (15); a bracket (17) is fixedly connected to one side of the inside of the pipe two (15); a rotating shaft (18) is rotatably connected in the middle of the bracket (17); a brush (19) is fixedly connected to one side of the rotating shaft (18); and a guide plate (20) is fixedly connected to the outside of the rotating shaft (18).

3. A gear pump with a filtering structure as claimed in claim 2, characterized in that: A slag collecting pipe (21) is fixedly connected to the bottom of one side of the second pipeline (15), and a slag collecting box (22) is threadedly connected to the bottom of the slag collecting pipe (21).

4. A gear pump with a filtering structure as claimed in claim 1, characterized in that: A rubber ring 1 (23) is fixedly provided on one side of the outside of the conical tube (4), and a rubber ring 2 (24) is fixedly provided on one side of the liquid inlet (2).

5. A gear pump with a filtering structure as claimed in claim 1, characterized in that: A rubber ring three (25) is fixedly provided inside one side of the pipe one (5) and located on one side of the filter screen (14).

6. A gear pump with a filtering structure as claimed in claim 2, characterized in that: A rubber ring 4 (26) is fixedly provided inside one side of the second pipe (15).

7. A gear pump with a filtering structure as claimed in claim 4, characterized in that: The contact surfaces of the rubber ring 1 (23) and the rubber ring 2 (24) are matched.

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