Anti-blocking gear pump

Abstract

The utility model relates to the technical field of gear pumps, in particular to an anti-blocking gear pump, which comprises a pump body, a water inlet, a water outlet, a water inlet pipe, a water inlet pipe and a water outlet pipe, a cleaning structure is mounted on the water inlet and comprises a guide pipe, the guide pipe is fixedly mounted at the left end of the water inlet through a bolt, a fixing frame is fixedly connected to the inner side of the guide pipe, a rotating shaft is movably mounted in the middle of the fixing frame through a bearing, and a turbine is fixedly connected to the left end of the rotating shaft; fixing rods are fixedly connected to the two sides of the middle of the rotating shaft, and telescopic rods are movably installed in the bottom ends of the fixing rods. Through the arrangement of the two fixed rods and the two telescopic rods, the scraping strip can be supported on the two sides of the middle of the scraping strip, so that the rigidity of the scraping strip is enhanced, a gap is prevented from being formed between the scraping strip and the inner wall of a guide pipe, the cleaning effect of the scraping strip on dirt on the inner wall of the guide pipe is guaranteed, and the use experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pumps, and particularly relates to an anti-blocking gear pump. Background Technique

[0002] The gear pump generates the flow of fluid through the rotation of gears. It consists of a driving gear and a driven gear. The gap between the gears forms the pump chamber. When the gears rotate, the fluid in the pump chamber is sucked in and discharged, thereby realizing the transportation of the fluid.

[0003] In this regard, Chinese Patent Application No.: CN202322545995.7 discloses an anti-blocking hydraulic gear pump, which relates to the field of gear pumps. It includes a gear pump body. One side of the gear pump body is communicated with a water inlet pipe, and the other side of the gear pump body is communicated with a drain pipe. A conduit is assembled at the side end of the drain pipe. A pair of vertical rods are arranged inside the conduit, and a rotating shaft is rotatably connected to the middle of the two vertical rods at the same time. A spiral impeller is fixedly assembled in the middle of the rotating shaft. An L-shaped strip is assembled at the side end of the rotating shaft, and the side of the L-shaped strip is in contact with the inner wall of the conduit, so as to clean the dirt on the inner wall of the conduit, and to a certain extent, avoid the accumulation of dirt on the inner wall of the conduit, thereby preventing the conduit from being blocked.

[0004] This gear pump can scrape the dirt on the inner wall of the conduit by installing a rotatable L-shaped strip in the conduit to prevent blockage. However, in the actual use process, since only one end of the L-shaped strip is connected to the rotating shaft and the other end is not fixed, when fitting the inner wall of the conduit, the unfixed end of the L-shaped strip will be lifted by the obstruction of the dirt, making the L-shaped strip unable to closely fit the inner wall of the conduit, and further affecting the cleaning effect of the dirt.

[0005] Therefore, in order to solve the above problems, an anti-blocking gear pump is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide an anti-blocking gear pump to solve the problem that in the prior art, the gear pump disclosed in the above background technology can scrape the dirt on the inner wall of the conduit by installing a rotatable L-shaped strip in the conduit to prevent blockage. However, in the actual use process, since only one end of the L-shaped strip is connected to the rotating shaft and the other end is not fixed, when fitting the inner wall of the conduit, the unfixed end of the L-shaped strip will be lifted by the obstruction of the dirt, making the L-shaped strip unable to closely fit the inner wall of the conduit, and further affecting the cleaning effect of the dirt.

[0007] To achieve the above purpose, the utility model provides the following technical solution: an anti-blocking gear pump, including: a pump body, and a water inlet and a water outlet are arranged on the left and right side walls of the pump body;

[0008] A cleaning structure is installed on the water inlet. The cleaning structure includes a conduit, which is fixedly installed at the left end of the water inlet by bolts. A fixing frame is fixedly connected to the inner side of the conduit. A rotating shaft is movably installed in the middle of the fixing frame through a bearing. A turbine is fixedly connected to the left end of the rotating shaft. Fixing rods are fixedly connected to both sides of the middle part of the rotating shaft. A telescopic rod is movably installed inside the bottom end of the fixing rod. A resisting rod is fixedly connected to the bottom end of the telescopic rod. A spring is fixedly connected to the top end of the telescopic rod. A scraping strip is installed on the outer side of the resisting rod. A connecting groove is formed on the left side wall of the scraping strip.

[0009] Preferably, the turbine is located on the left side of the fixing frame.

[0010] Preferably, the two fixing rods are parallel to each other, and the telescopic rods protrude from the bottom ends of the fixing rods.

[0011] Preferably, the resisting rod is connected to the two telescopic rods, and one end of the spring is fixedly connected to the inner wall of the fixing rod.

[0012] Preferably, the scraping strip is clamped on the outer side of the resisting rod through the connecting groove.

[0013] Preferably, the surface of the scraping strip fits the inner wall of the conduit.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the arrangement of the two fixing rods and the two telescopic rods, the present utility model can support the scraping strip on both sides of the middle part thereof to enhance the rigidity of the scraping strip, avoid the appearance of gaps between the scraping strip and the inner wall of the conduit, and further ensure the cleaning effect of the scraping strip on the dirt on the inner wall of the conduit, thereby improving the use experience.

[0015] In the present utility model, a cleaning structure is provided. Liquid enters the conduit from the left end and is discharged from the water outlet through the water inlet and the pump body. When the liquid flows in the conduit, it can drive the turbine to rotate. The turbine drives the rotating shaft to rotate on the fixing frame. The rotating shaft drives the resisting rod to move through the fixing rod and the telescopic rod. The resisting rod drives the scraping strip to scrape the dirt on the inner wall of the conduit. Through the arrangement of the two fixing rods and the two telescopic rods, the scraping strip can be supported on both sides of the middle part thereof to enhance the rigidity of the scraping strip, avoid the appearance of gaps between the scraping strip and the inner wall of the conduit, and further ensure the cleaning effect of the scraping strip on the dirt on the inner wall of the conduit, thereby improving the use experience. When the scraping strip is worn, the thickness of the scraping strip becomes smaller. At this time, there will be a gap between the scraping strip and the inner wall of the conduit. The spring will recover and push the telescopic rod to drive the scraping strip to further fit the inside of the conduit through the resisting rod to ensure the cleaning effect. When the scraping strip needs to be replaced, the bolts can be unscrewed to separate the conduit from the water inlet. Pull the right end of the scraping strip, and the scraping strip can be pulled down from the resisting rod. A new scraping strip can be clamped on the upper side of the resisting rod through the connecting groove, and the scraping strip can be conveniently replaced. The scraping strip tightly fits the inner wall of the conduit under the action of the spring, which can avoid loosening and ensure the installation stability. Brief Description of the Drawings

[0016] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0017] Figure 2 It is a side view sectional structural schematic diagram of the conduit of the present utility model;

[0018] Figure 3 It is an exploded structural schematic diagram of the fixing bracket of the present utility model;

[0019] Figure 4 It is an exploded structural schematic diagram of the abutting rod of the present utility model.

[0020] In the figure: 1, pump body; 11, water inlet; 12, water outlet; 2, cleaning structure; 21, conduit; 22, bolt; 23, fixing bracket; 24, rotating shaft; 25, turbine; 26, fixing rod; 27, telescopic rod; 28, abutting rod; 29, spring; 210, scraping strip; 211, connecting groove. Detailed Description of the Preferred Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 - 4 , an embodiment provided by the present utility model:

[0023] The pump body 1, water inlet 11, and water outlet 12 used in this application are products that can be directly purchased on the market, and their principles and connection methods are all well-known prior arts to those skilled in the art, so they will not be described in detail here.

[0024] An anti-blocking gear pump includes: a pump body 1, and a water inlet 11 and a water outlet 12 are arranged on the left and right side walls of the pump body 1;

[0025] A cleaning structure 2 is installed on the water inlet 11. The cleaning structure 2 includes a conduit 21. The conduit 21 is fixedly installed at the left end of the water inlet 11 through bolts 22. A fixing frame 23 is fixedly connected to the inner side of the conduit 21. A rotating shaft 24 is movably installed in the middle of the fixing frame 23 through a bearing. A turbine 25 is fixedly connected to the left end of the rotating shaft 24. Fixing rods 26 are fixedly connected to both sides of the middle of the rotating shaft 24. A telescopic rod 27 is movably installed inside the bottom end of the fixing rod 26. A pressing rod 28 is fixedly connected to the bottom end of the telescopic rod 27. A spring 29 is fixedly connected to the top end of the telescopic rod 27. A scraping strip 210 is installed on the outer side of the pressing rod 28. A connecting groove 211 is formed on the left side wall of the scraping strip 210. Through the arrangement of two groups of fixing rods 26 and two groups of telescopic rods 27, the middle of both sides of the scraping strip 210 can be supported to enhance the rigidity of the scraping strip 210, avoid gaps between the scraping strip 210 and the inner wall of the conduit 21, and thus ensure the cleaning effect of the scraping strip 210 on the dirt on the inner wall of the conduit 21 and improve the use experience.

[0026] Further, the turbine 25 is located on the left side of the fixing frame 23. The setting of the fixing frame 23 will not affect the action of the liquid on the turbine 25, and the rotation effect of the turbine 25 can be ensured.

[0027] Further, the two groups of fixing rods 26 are parallel to each other. The telescopic rod 27 extends out of the bottom end of the fixing rod 26, and the telescopic rod 27 can telescopically move inside the fixing rod 26.

[0028] Further, the pressing rod 28 is connected to the two groups of telescopic rods 27. One end of the spring 29 is fixedly connected to the inner wall of the fixing rod 26. The two groups of telescopic rods 27 cooperate with the pressing rod 28 to support and fix the scraping strip 210. The spring 29 provides power for the telescopic rod 27 and the pressing rod 28 to drive the scraping strip 210 to fit the inner wall of the conduit 21 to ensure the fitting effect between the scraping strip 210 and the inner wall of the conduit 21.

[0029] Further, the scraping strip 210 is clamped on the outer side of the pressing rod 28 through the connecting groove 211, and the scraping strip 210 can be disassembled and assembled conveniently on the pressing rod 28.

[0030] Further, the surface of the scraping strip 210 fits the inner wall of the conduit 21, and the dirt on the inner wall of the conduit 21 can be scraped off by the scraping strip 210.

[0031] Working principle: Before use, connect the conduit 21 to the water inlet 11 through bolts 22;

[0032] During use, the liquid enters the conduit 21 from the left end and is discharged from the water outlet 12 via the water inlet 11 and the pump body 1. When the liquid flows in the conduit 21, it can drive the turbine 25 to rotate. The turbine 25 drives the rotating shaft 24 to rotate on the fixed bracket 23. The rotating shaft 24 drives the abutting rod 28 to move through the fixed rod 26 and the telescopic rod 27. The abutting rod 28 drives the scraping strip 210 to scrape the dirt on the inner wall of the conduit 21. Through the arrangement of two groups of fixed rods 26 and two groups of telescopic rods 27, the middle sides of the scraping strip 210 can be supported to enhance the rigidity of the scraping strip 210, avoid gaps between the scraping strip 210 and the inner wall of the conduit 21, and thus ensure the cleaning effect of the scraping strip 210 on the dirt on the inner wall of the conduit 21 and improve the use experience;

[0033] When the scraping strip 210 is worn, the thickness of the scraping strip 210 will become smaller. At this time, there will be a gap between the scraping strip 210 and the inner wall of the conduit 21. The spring 29 will recover and push the telescopic rod 27 to drive the scraping strip 210 to further fit the inside of the conduit 21 through the abutting rod 28, so as to avoid being blocked by dirt;

[0034] When the scraping strip 210 needs to be replaced, the bolt 22 can be unscrewed to separate the conduit 21 from the water inlet 11. By pulling the right end of the scraping strip 210, the scraping strip 210 can be pulled down from the abutting rod 28. The new scraping strip 210 can be clamped on the upper side of the abutting rod 28 through the connecting groove 211, and the scraping strip 210 can be replaced conveniently. Under the action of the spring 29, the scraping strip 210 tightly fits the inner wall of the conduit 21, which can avoid loosening and ensure the installation stability.

[0035] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Any ordinary technician in the industry can smoothly implement the present invention according to the instructions in the drawings and the above description. However, any equivalent changes such as slight modifications, decorations, and evolutions made by those skilled in the art within the scope of the technical solution of the present invention using the technical content disclosed above are equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A clogging-proof gear pump, comprising: Pump body (1), water inlets (11) and water outlets (12) are arranged on the left and right side walls of the pump body (1); It is characterized in that: A cleaning structure (2) is installed on the water inlet (11). The cleaning structure (2) includes a conduit (21). The conduit (21) is fixedly installed at the left end of the water inlet (11) through bolts (22). A fixing frame (23) is fixedly connected to the inner side of the conduit (21). A rotating shaft (24) is movably installed in the middle of the fixing frame (23) through a bearing. A turbine (25) is fixedly connected to the left end of the rotating shaft (24). Fixing rods (26) are fixedly connected to both sides of the middle of the rotating shaft (24). Expansion rods (27) are movably installed inside the bottom ends of the fixing rods (26). A pressing rod (28) is fixedly connected to the bottom end of the expansion rod (27). A spring (29) is fixedly connected to the top end of the expansion rod (27). A scraping strip (210) is installed on the outer side of the pressing rod (28). A connecting groove (211) is formed on the left side wall of the scraping strip (210).

2. The anti-clogging gear pump according to claim 1, characterized in that: The turbine (25) is located on the left side of the fixing frame (23).

3. The anti-clogging gear pump according to claim 1, wherein: The two groups of fixing rods (26) are parallel to each other, and the expansion rods (27) expose the bottom ends of the fixing rods (26).

4. The anti-blocking gear pump according to claim 1, characterized in that: The pressing rod (28) is connected to the two groups of expansion rods (27), and one end of the spring (29) is fixedly connected to the inner wall of the fixing rod (26).

5. The anti-clogging gear pump according to claim 1, wherein: The scraping strip (210) is clamped on the outer side of the pressing rod (28) through the connecting groove (211).

6. The anti-clogging gear pump according to claim 1, wherein: The surface of the scraping strip (210) is attached to the inner wall of the conduit (21).

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