Leakage-stopping small water pump

Abstract

The utility model relates to a small leak-proof water pump, which belongs to the technical field of water pumps and comprises a motor, an eccentric wheel connected to the output end of the motor, a push rod rotating shaft arranged at the eccentric position of the eccentric wheel, a swing frame connected to the upper end of the push rod rotating shaft and a plurality of one-way valves connected to the upper side of the swing frame. An upper cover covers the upper sides of the multiple one-way valves, a water inlet pipe, a water outlet pipe, an outer threaded cylinder fixedly arranged at the root of the water outlet pipe in a sleeving mode and a threaded sleeve arranged on the outer side of the outer threaded cylinder in a threaded sleeving mode are arranged on the upper side of the upper cover, a guide cylinder is integrally arranged on the edge of the upper side of the threaded sleeve, and a triangular rubber ring for extruding the outer wall of the water pipe is arranged on the inner side of the guide cylinder; the hose can be extruded from outside to inside through the triangular rubber ring, the interior of the hose is tightly extruded on the inverted cone rubber sleeve, finally, the hose and the water outlet pipe are connected more tightly through sealing extrusion on the two sides of the hose, the sealing performance of connection between the hose and the water outlet pipe is improved, and water leakage is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, and in particular relates to a leak-proof small water pump. Background Art

[0002] A water pump is a machine that lifts, transports or increases the pressure of a liquid. The water pump transfers the mechanical energy of the prime mover or other external energy to the liquid, increases the energy of the liquid, and thus achieves the purpose of pumping the liquid. It is mainly used to transport liquids, and can also be used to transport one or more of liquids, gases, and suspended solids. The leak-proof sealing gaskets of existing water pumps are all made of plastic. When the water pump pressure is too high or is not used for a long time, the leak-proof sealing gasket of the water pump is easy to stick to the water pump body, destroying the leak-proof sealing gasket.

[0003] For example, in the announcement number CN207111506U, the name is a long-life water pump, which includes an upper cover, a leak-proof pad, a sealing pad, a valve plate, a one-way valve, a leather cup, a swing frame, a steel needle and a power mechanism connected in sequence, and the leak-proof pad is arranged between the upper cover and the valve plate. Although the above-mentioned prior art can prevent the leak-proof pad and the valve plate from sticking to each other, the hose connected to the water outlet of the water pump is directly arranged on the water outlet through the elastic sleeve of the hose. After long-term use, the hose is easy to harden and its elasticity is reduced. In addition, since the pressure of the water outlet pipe of the water pump is relatively large, the water outlet is prone to leak. Therefore, a small leak-proof water pump is now needed. Utility Model Content

[0004] The purpose of the utility model is to provide a small leak-proof water pump with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A leak-proof small water pump comprises a motor, an eccentric wheel is connected to the output end of the motor, a push rod shaft is arranged at the eccentric position of the eccentric wheel, the upper end of the push rod shaft is connected to a swing frame and a plurality of one-way valves connected to the upper side of the swing frame, an upper cover is formed on the upper sides of the plurality of one-way valves, an inlet pipe and an outlet pipe are arranged on the upper side of the upper cover, and a sealing and clamping assembly for squeezing the outer wall of the water pipe is arranged on the outlet pipe.

[0007] As a further optimization scheme of the utility model, the sealing and clamping assembly includes an external threaded barrel fixedly mounted on the root of the water outlet pipe and a threaded sleeve threadedly mounted on the outside of the external threaded barrel. A guide barrel is integrally provided on the upper edge of the threaded barrel, and a triangular rubber ring is provided on the inner side of the guide barrel to squeeze the outer wall of the water pipe.

[0008] As a further optimization solution of the utility model, the upper ends of the water inlet pipe and the water outlet pipe are fixedly sleeved with an inverted cone rubber sleeve that cooperates with the triangular rubber ring.

[0009] As a further optimization solution of the utility model, a sealing plastic sleeve is provided on the outer sealing sleeve of the output end of the motor, and the eccentric wheel and the push rod shaft are located on the inner side of the sealing plastic sleeve.

[0010] As a further optimization solution of the utility model, a valve plate is sealed on the upper side of the sealing plastic sleeve, and a plurality of rubber tympanic membranes arranged on the outer side of the one-way valve are arranged on the inner side of the valve plate.

[0011] As a further optimization scheme of the utility model, a first rubber sealing sheet and a second rubber sealing sheet are sequentially arranged on the upper side of the valve plate, a metal sealing gasket is arranged between the first rubber sealing sheet and the second rubber sealing sheet, and the edge of the upper cover is provided with a plurality of long screws that pass through the first rubber sealing sheet and the second rubber sealing sheet and are threadedly connected to the sealing plastic sleeve.

[0012] The beneficial effect of the utility model is that in the utility model, when one end of the hose is sleeved on the inverted cone rubber sleeve at one end of the water outlet pipe, the threaded sleeve is then rotated so that the threaded sleeve is threadedly connected to the external threaded tube at the root of the water outlet pipe, so that the threaded sleeve moves toward the water outlet end, driving the guide tube on the upper side of the threaded sleeve to move upward, so that the triangular rubber ring on the inner side of the guide tube squeezes the outer wall of the hose, so that the hose can be squeezed from the outside to the inside through the triangular rubber ring, so that the inside of the hose is tightly squeezed on the inverted cone rubber sleeve, and finally, through the sealing extrusion on both sides of the hose, the connection between the hose and the water outlet pipe is made tighter, thereby improving the sealing performance of the connection between the two and preventing water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal overall structure of the utility model;

[0015] Figure 3 It is a partial structural schematic diagram of the upper cover of the utility model;

[0016] Figure 4 It is a schematic diagram of the overall structure of the upper cover of the utility model;

[0017] Figure 5 This is a schematic diagram of the overall structure of the upper cover of the utility model when viewed from above;

[0018] Figure 6 This utility model Figure 4 Enlarged view of point A in the middle.

[0019] In the figure: 1. Motor; 2. Sealing plastic sleeve; 3. Valve plate; 4. Metal sealing gasket; 5. Upper cover; 6. Water inlet pipe; 7. Water outlet pipe; 8. Inverted cone rubber sleeve; 9. External threaded cylinder; 10. Threaded sleeve; 11. Guide cylinder; 12. Triangular rubber ring; 13. Eccentric wheel; 14. Push rod shaft; 15. Swing frame; 16. Rubber drum membrane; 17. First rubber sealing sheet; 18. Long screw; 19. One-way valve; 20. Second rubber sealing sheet. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example

[0022] like Figure 1 , Figure 2 As shown, a leak-proof small water pump includes a motor 1, an eccentric wheel 13 is connected to the output end of the motor 1, a push rod shaft 14 is arranged at the eccentric position of the eccentric wheel 13, the push rod shaft 14 is made of stainless steel, the upper end of the push rod shaft 14 is connected to a swing frame 15 and a plurality of one-way valves 19 connected to the upper side of the swing frame 15, three one-way valves 19 are arranged in this embodiment, and the number of one-way valves 19 can be adjusted according to the specific place of use, a sealing sleeve on the outer side of the output end of the motor 1 is provided with a sealing plastic sleeve 2, the eccentric wheel 13 and the push rod shaft 14 are located on the inner side of the sealing plastic sleeve 2, a valve plate 3 is arranged on the upper side of the sealing plastic sleeve 2, and a plurality of sleeves arranged outside the one-way valve 19 are arranged on the inner side of the valve plate 3. The rubber tympanic membrane 16 on the side adopts a bowl-shaped structure with a large top and a small bottom. The rubber tympanic membrane 16 can better wrap the one-way valve 19. The upper side of the valve plate 3 is sequentially provided with a first rubber sealing sheet 17 and a second rubber sealing sheet 20. A metal sealing gasket 4 is provided between the first rubber sealing sheet 17 and the second rubber sealing sheet 20. The edge of the upper cover 5 is provided with a plurality of long screws 18 that pass through the first rubber sealing sheet 17 and the second rubber sealing sheet 20 and are threadedly connected to the sealing plastic sleeve 2. The upper side of the one-way valve 19 is covered with an upper cover 5. The upper side of the upper cover 5 is provided with an inlet pipe 6 and an outlet pipe 7. The upper ends of the inlet pipe 6 and the outlet pipe 7 are fixedly sleeved with an inverted cone rubber sleeve 8. When in use, the motor 1 drives the eccentric wheel 13 to rotate, and then the swing frame 15 is pushed up and down through the push rod shaft 14, squeezing the rubber tympanic membrane 16, so that the cavity of the rubber tympanic membrane 16 becomes smaller, so that the valve sheet on the one-way valve 19 is opened, and the liquid delivery function is completed.

[0023] like Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the water outlet pipe 7 is provided with a sealing and pressing assembly for squeezing the outer wall of the water pipe. According to the power used by the water pump, a sealing and pressing assembly can also be provided on the water inlet pipe 6. This embodiment only shows that the sealing and pressing assembly is provided on the water outlet pipe 7. The sealing and pressing assembly includes an external threaded tube 9 fixedly sleeved at the root of the water outlet pipe 7 and a threaded sleeve 10 threadedly sleeved on the outside of the external threaded tube 9. A guide tube 11 is integrally provided on the upper edge of the threaded sleeve 10, and a triangular rubber ring 12 that is squeezed and matched with the inverted cone rubber sleeve 8 is provided on the inner side of the guide tube 11. When in use, when one end of the hose is sleeved on the inverted cone rubber sleeve 8 at one end of the water outlet pipe 7, the threaded sleeve 10 is then rotated so that the threaded sleeve 10 is threadedly connected with the external threaded tube 9 at the root of the water outlet pipe 7, so that the threaded sleeve 10 moves toward the water outlet end, driving the guide tube 10 on the upper side of the threaded sleeve 10 to move upward, so that the triangular rubber ring 12 on the inner side of the guide tube 10 squeezes the outer wall of the hose, so that the hose can be squeezed from the outside to the inside through the triangular rubber ring 12, so that the inside of the hose is tightly squeezed on the inverted cone rubber sleeve 8, and finally, through the sealing and squeezing on both sides of the hose, the connection between the hose and the water outlet pipe 7 is made tighter, thereby improving the sealing of the connection between the two and preventing water leakage, so that the water pump can be used in occasions with relatively large power, thereby improving the adaptability of the water pump to the environment.

[0024] It should be noted that when using this kind of leak-proof small water pump, first, one end of the hose is sleeved on the inverted cone rubber sleeve 8 at one end of the water outlet pipe 7, and the inverted cone rubber sleeve 8 is used to deform one end of the hose outward. Then, the threaded sleeve 10 is rotated so that the threaded sleeve 10 is threadedly connected with the external threaded tube 9 at the root of the water outlet pipe 7, so that the threaded sleeve 10 moves toward the water outlet end, driving the guide tube 10 on the upper side of the threaded sleeve 10 to move upward, so that the triangular rubber ring 12 on the inner side of the guide tube 10 squeezes the outer wall of the hose, so that the hose can be squeezed from the outside to the inside through the triangular rubber ring 12, and the internal and external sealing and fixation of the hose are completed.

[0025] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A small water pump for preventing leakage, comprising a motor (1), characterized in that: The output end of the motor (1) is connected to an eccentric wheel (13), a push rod rotating shaft (14) is arranged at an eccentric position of the eccentric wheel (13), the upper end of the push rod rotating shaft (14) is connected to a swing frame (15) and a plurality of one-way valves (19) connected to the upper side of the swing frame (15), the upper side of the plurality of one-way valves (19) is covered with an upper cover (5), the upper side of the upper cover (5) is provided with a water inlet pipe (6) and a water outlet pipe (7), and the water outlet pipe (7) is provided with a sealing and clamping component for squeezing the outer wall of the water pipe.

2. A leak-proof small water pump according to claim 1, characterized in that: The sealing and pressing assembly comprises an external threaded barrel (9) fixedly sleeved at the root of a water outlet pipe (7) and a threaded sleeve (10) threadedly sleeved on the outside of the external threaded barrel (9); a guide barrel (11) is integrally provided on the upper edge of the threaded sleeve (10); and a triangular rubber ring (12) for squeezing the outer wall of the water pipe is provided on the inner side of the guide barrel (11).

3. A leak-proof small water pump according to claim 2, characterized in that: The upper ends of the water inlet pipe (6) and the water outlet pipe (7) are fixedly sleeved with an inverted cone rubber sleeve (8) that matches the triangular rubber ring (12).

4. A leak-proof small water pump according to claim 1, characterized in that: A sealing sleeve (2) is provided on the outer side of the sealing sleeve at the output end of the motor (1), and the eccentric wheel (13) and the push rod rotating shaft (14) are located on the inner side of the sealing plastic sleeve (2).

5. A leak-proof small water pump according to claim 4, characterized in that: The upper side of the sealing plastic sleeve (2) is sealed with a valve plate (3), and the inner side of the valve plate (3) is provided with a plurality of rubber tympanic membranes (16) which are sleeved on the outer side of the one-way valve (19).

6. A leak-proof small water pump according to claim 5, characterized in that: A first rubber sealing sheet (17) and a second rubber sealing sheet (20) are arranged in sequence on the upper side of the valve plate (3); a metal sealing gasket (4) is arranged between the first rubber sealing sheet (17) and the second rubber sealing sheet (20); and a plurality of long screws (18) are arranged on the edge of the upper cover (5) and pass through the first rubber sealing sheet (17) and the second rubber sealing sheet (20) and are threadedly connected to the sealing plastic sleeve (2).

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