Water pump with water outlet provided with non-return structure

Abstract

The utility model provides a water pump with a water outlet provided with a non-return structure, and belongs to the field of pumps. The problem that liquid flows back in an existing water pump is solved. The water pump with the water outlet provided with the non-return structure comprises a pump body provided with a water inlet port and a water outlet port, a non-return mechanism is arranged in the water outlet port of the pump body, a water pressure transmission device is further arranged on the outer wall of the water outlet port of the pump body, the non-return mechanism comprises a non-return piece, an elastic piece, a limiting piece and a connecting piece, and the end of the non-return piece extends upwards in the axial direction to form a connecting rod. The connecting piece is connected with the inner wall of the water outlet port of the pump body, a connecting hole is formed in the center of the connecting piece, the connecting rod and the connecting hole are in spline structure limiting connection, the elastic piece is arranged on the connecting rod in a sleeving mode and is installed through the check piece and the connecting piece in a limiting mode, and the limiting piece, the check piece, the connecting rod and the connecting piece are sequentially installed in the water outlet port of the pump body from bottom to top. And a sealing ring is also arranged between the limiting piece and the non-return piece. The check valve has the advantages of being free of flow resistance and non-return.

Description

Technical Field

[0001] The utility model belongs to the field of pumps, and relates to a water pump, in particular to a water pump with a check structure at the water outlet. Background Art

[0002] A water pump is a machine that transports liquids or increases the pressure of liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to transport liquids including water, oil, acid-base solutions, emulsions, suspension emulsions, and liquid metals, etc.

[0003] The existing water pumps are not designed with a check structure. After the water pump stops sucking, a large amount of water in the connecting pipeline loses power and immediately flows back into the water pump, causing the motor in the submersible pump to reverse and damaging the submersible pump. Summary of the Invention

[0004] The purpose of the utility model is to provide a water pump with a check structure at the water outlet to solve the above problems in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A water pump with a check structure at the water outlet includes a pump body with an inlet port and an outlet port. It is characterized in that a check mechanism for preventing liquid from flowing back is arranged in the outlet port of the pump body, and a water pressure sensor for real-time monitoring of the pipeline water pressure is also arranged on the outer wall of the outlet port of the pump body;

[0006] The check mechanism includes a check member for preventing liquid from flowing back, an elastic member for elastic reset, a limiting member for blocking and limiting, and a connecting member for connection;

[0007] An axial upward extension of the end of the check member has a connecting rod that is in limiting cooperation with the connecting member, and the connecting member is connected to the inner wall of the outlet port of the pump body;

[0008] A connection hole for the connecting rod to pass through is opened at the center of the connecting member;

[0009] The connecting rod and the connection hole are in spline structure limiting connection;

[0010] The elastic member is sleeved on the connecting rod and is respectively limited and installed by the check member and the connecting member;

[0011] The limiting member, the check member, the connecting rod and the connecting member are sequentially installed in the outlet port of the pump body from bottom to top, and a sealing ring for improving sealing is also provided between the limiting member and the check member.

[0012] In the above-mentioned water pump with a check valve structure at the water outlet, the limiting member, the connecting member and the inner wall structure of the water outlet port of the pump body cooperate to form a check valve cavity for the axial movement of the check valve and the connecting rod. The check valve is arranged in a T-shaped structure and is movably and limit-fitted with the limiting member.

[0013] In the above-mentioned water pump with a check valve structure at the water outlet, the limiting member is arranged in a hollow structure, and a sealing member is arranged between the limiting member and the inner wall of the pump body to improve the sealing strength.

[0014] In the above-mentioned water pump with a check valve structure at the water outlet, the connecting member is connected to the inner peripheral wall of the water outlet port of the pump body through a plurality of connecting ribs. The elastic member is sleeved on the connecting rod, and both ends thereof are respectively abutted and installed on the connecting ribs and the check valve.

[0015] In the above-mentioned water pump with a check valve structure at the water outlet, a flow channel communicating with the inside of the pump body is provided below the water outlet port of the pump body, and the inner wall of the flow channel is arranged in an arc structure.

[0016] Compared with the prior art, the water pump with a check valve structure at the water outlet has a simple design. By using the structural design of the check valve mechanism, it has a check valve function. After the water pump stops pumping, a large amount of water in the pipeline loses power. The check valve mechanism arranged in the water outlet port of the pump body has a check valve effect on the pipeline, improving the service life of the product. At the same time, there is a flow channel between the water outlet port and the inside of the pump body. The flow channel structure effectively prevents the accumulation of impurities and has a liquid guiding function. Brief Description of the Drawings

[0017] Figure 1 It is a partial sectional structural schematic diagram of the water pump with a check valve structure at the water outlet.

[0018] Figure 2 It is a partial three-dimensional structural schematic diagram of the water pump with a check valve structure at the water outlet.

[0019] In the figure, 1. Pump body; 2. Water pressure sensor; 3. Check valve; 4. Elastic member; 5. Limiting member; 6. Connecting member; 7. Connecting rod; 8. Connecting hole; 9. Sealing ring; 10. Sealing member; 11. Check valve cavity; 12. Connecting rib; 13. Flow channel. Detailed Description of the Preferred Embodiments

[0020] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0021] Such as Figure 1 、 Figure 2As shown in the figure, the water pump with a check structure at the water outlet includes a pump body 1 with an inlet port and an outlet port. A check mechanism for preventing liquid backflow is provided inside the outlet port of the pump body 1. A water pressure sensor 2 for real-time monitoring of the pipeline water pressure is also provided on the outer wall of the outlet port of the pump body 1. The check mechanism includes a check member 3 for preventing liquid backflow, an elastic member 4 for elastic reset, a limiting member 5 for blocking and limiting, and a connecting member 6 for connection. An axial upward extension of the end of the check member 3 has a connecting rod 7 that is limited and cooperated with the connecting member 6. The connecting member 6 is connected to the inner wall of the outlet port of the pump body 1. A connection hole 8 for the connecting rod 7 to pass through is provided at the center of the connecting member 6. The connecting rod and the connection hole 8 are limited and connected by a spline structure. The elastic member 4 is sleeved on the connecting rod 7 and is limited and installed by the check member 3 and the connecting member 6 respectively. The limiting member 5, the check member 3, the connecting rod 7, and the connecting member 6 are sequentially installed from bottom to top inside the outlet port of the pump body 1, and a sealing ring 9 for improving the seal is also provided between the limiting member 5 and the check member 3.

[0022] The above structure is simply designed. By using the check mechanism structure design, it has a check function. After the water pump stops sucking, a large amount of water in the pipeline loses power. The check mechanism provided inside the outlet port of the pump body 1 has a check effect on the pipeline, improving the service life of the product. At the same time, there is a flow channel 13 inside the outlet port and the pump body 1. The structure of the flow channel 13 effectively prevents impurity accumulation and has a liquid guiding effect.

[0023] In further detail, in order to better prevent liquid backflow, a check cavity 11 for the axial movement of the check member 3 and the connecting rod 7 is formed by the structural cooperation of the limiting member 5, the connecting member 6, and the inner wall of the outlet port of the pump body 1. The check member 3 is arranged in a T-shaped structure and is movably and limitedly cooperated with the limiting member 5. The limiting member 5 is arranged in a hollow structure, and a sealing member 10 for improving the sealing strength is provided between the limiting member 5 and the inner wall of the pump body 1.

[0024] In further detail, in order to elastically reset the check member 3 to achieve check, the connecting member 6 is connected to the inner peripheral wall of the outlet port of the pump body 1 through a plurality of connecting ribs 12. The elastic member 4 is sleeved on the connecting rod 7 and is respectively abutted and installed on the connecting ribs 12 and the check member 3 at both ends.

[0025] In further detail, in order to achieve liquid guiding and unobstructed flow through, there is a flow channel 13 communicating with the inside of the pump body 1 below the outlet port of the pump body 1, and the inner wall of the flow channel 13 is arranged in an arc structure.

[0026] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but they will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0027] Although terms such as pump body 1, water pressure sensor 2, check member 3, elastic member 4, limiting member 5, connecting member 6, connecting rod 7, connecting hole 8, sealing ring 9, sealing member 10, check cavity 11, connecting rib 12, and flow channel 13 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for more conveniently describing and explaining the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A water pump with a check structure at a water outlet, comprising a pump body (1) with a water inlet port and a water outlet port, characterized in that: A check mechanism for preventing liquid backflow is provided in the water outlet port of the pump body (1), and a water pressure sensor (2) for real-time monitoring of pipeline water pressure is also provided on the outer wall of the water outlet port of the pump body (1); The non-return mechanism comprises a non-return member (3) for preventing liquid from flowing back, an elastic member (4) for elastic reset, a limiting member (5) for blocking and limiting, and a connecting member (6) for connection; A connecting rod (7) is axially extended upward from the end of the check member (3) and is engaged with the connecting member (6) in a limiting manner. The connecting member (6) is connected to the inner wall of the water outlet port of the pump body (1); The connecting piece (6) has a connecting hole (8) at its center for the connecting rod (7) to movably penetrate. The connecting rod (7) and the connecting hole (8) are limitedly connected by a spline structure; The elastic member (4) is sleeved on the connecting rod (7) and is respectively installed in a limited position by the check member (3) and the connecting member (6); The limiting member (5), the non-return member (3), the connecting rod (7) and the connecting member (6) are sequentially installed in the water outlet port of the pump body (1) from bottom to top, and a sealing ring (9) for improving sealing is provided between the limiting member (5) and the non-return member (3).

2. A water pump with a check structure at the water outlet according to claim 1, characterized in that: The stopper (5), the connecting member (6) and the inner wall structure of the water outlet port of the pump body (1) cooperate to form a check cavity (11) for the axial movement of the check member (3) and the connecting rod (7); the check member (3) is arranged in a T-shaped structure and cooperates with the stopper (5) to movably limit the position.

3. A water pump with a check structure at the water outlet according to claim 1, characterized in that: The limiting member (5) is provided in a hollow structure, and a sealing member (10) for improving the sealing strength is provided between the limiting member (5) and the inner wall of the pump body (1).

4. A water pump with a check structure at the water outlet according to claim 1, characterized in that: The connecting member (6) is connected to the inner peripheral wall of the water outlet port of the pump body (1) via a plurality of connecting ribs (12); the elastic member (4) is sleeved on the connecting rod (7) and its two ends are respectively mounted against the connecting ribs (12) and the check member (3).

5. A water pump with a check structure at the water outlet according to claim 1, characterized in that: A flow channel (13) communicating with the interior of the pump body (1) is provided below the water outlet port of the pump body (1), and the inner wall of the flow channel (13) is arranged in an arc-shaped structure.

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