Spin-up one-way valve plate for self-priming pump

Abstract

The utility model relates to the technical field of one-way valves, and discloses a spin-up one-way valve plate for a self-priming pump, which comprises a valve plate main body, a connecting plate is fixedly connected to the top of the valve plate main body, a hanging shaft is fixedly connected to the top of the connecting plate, positioning rubber blocks are arranged at two ends of the hanging shaft, an inner groove is formed in the front surface of the valve plate main body, and the valve plate main body is fixedly connected with the inner groove. A sealing strip is installed in the inner groove in an embedded mode, and a balance weight is arranged in the valve block body. The sealing strip is arranged, the sealing strip is connected with the end of the channel in the pump body in an abutting mode, the sealing performance can be improved, water is prevented from flowing back in the pump body, the balance weight is arranged in the valve block body, under the action of the balance weight, the lower end of the valve block body deviates towards one side of the sealing strip, and the sealing performance is improved. And therefore, the valve plate main body can be more tightly attached to the end part of the through hole in the pump body, and the sealing effect can be further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a swing-up check valve disc for a self-priming pump. Background Technique

[0002] Generally, a check valve disc needs to be arranged inside a self-priming pump. Its principle is similar to that of a check valve, which can prevent the water inside the pipeline from flowing back. One end of the valve disc is installed inside the pump body, and the other end is movably connected. When water flows forward from inside the pump body, the valve disc can be pushed open, so that a passage is formed inside the pump body, and the water passes through the pump body. When the water wants to flow back reversely, the water will first act on the surface of the valve disc, and the valve disc will be abutted against the inside of the pump body, thereby blocking the inside of the pump body to prevent the water from flowing back reversely. However, the valve disc structure inside the existing self-priming pump is simple. When preventing reverse flow, it can only cover the through hole inside the pump body through the valve disc, and the sealing effect is not good. Water easily flows back through the gap between the inner wall of the pump body and the valve disc, affecting the sealing effect. Therefore, those skilled in the art provide a swing-up check valve disc for a self-priming pump to solve the problems raised in the above background technique. Content of the Utility Model

[0003] The purpose of the utility model is to provide a swing-up check valve disc for a self-priming pump to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A swing-up check valve disc for a self-priming pump, including a valve disc body. A connecting plate is fixedly connected to the top of the valve disc body. A hanging shaft is fixedly connected to the top of the connecting plate. Positioning rubber blocks are arranged at both ends of the hanging shaft. An inner groove is formed on the front surface of the valve disc body. A sealing strip is embedded inside the inner groove. A counterweight is arranged inside the valve disc body.

[0006] As a further scheme of the utility model: An inner tube is embedded inside the positioning rubber block. The end of the hanging shaft is rotatably arranged inside the inner tube. Clamping layers are fixedly bonded to the upper and lower surfaces of the positioning rubber block. An anti-slip surface is arranged on the surface of the clamping layer away from the positioning rubber block.

[0007] As a further scheme of the utility model: The positioning rubber block is made of rubber material, and the inner tube and the clamping layers are both made of hard plastic material.

[0008] As a further scheme of the utility model: The counterweight is located at the lower end inside the valve disc body, and the counterweight is arranged deviating from the central plane of the valve disc body, and the deviation direction is the side away from the sealing strip.

[0009] As a further solution of the present utility model: the inner groove is arranged in an annular groove shape, and the sealing strip is arranged in an annular shape.

[0010] As a further solution of the present utility model: the inner groove is arranged in a circular groove shape, and the sealing strip is arranged in a circular sheet shape.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] By arranging the sealing strip, and using the sealing strip to abut and connect with the end of the channel inside the pump body, the sealing performance can be improved, avoiding the backflow of water inside the pump body. And because a counterweight is arranged inside the valve disc body and the counterweight is eccentrically arranged, when the valve disc body hangs freely, in order to maintain balance, the counterweight will deflect a small angle towards the middle, so that the lower end of the valve disc body deflects towards the side with the sealing strip. When the valve disc body is installed inside the pump body, under the action of the counterweight, the lower end of the valve disc body deflects towards the side of the sealing strip, so that the valve disc body can fit more closely to the end of the through hole inside the pump body, and the sealing effect can be further enhanced. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the first embodiment of a swing-up type one-way valve disc for a self-priming pump;

[0014] Figure 2 It is a schematic structural diagram of the second embodiment of a swing-up type one-way valve disc for a self-priming pump;

[0015] Figure 3 It is an enlarged structural diagram of the positioning rubber block in a swing-up type one-way valve disc for a self-priming pump;

[0016] Figure 4 It is Figure 1 The structural diagram in the A-A direction in

[0017] In the figure: 1, valve disc body; 2, connecting plate; 3, hanging shaft; 4, inner groove; 5, sealing strip; 6, positioning rubber block; 7, inner tube; 8, clamping layer; 9, anti-slip surface; 10, counterweight. Detailed Embodiments

[0018] Please refer to Figure 1 、 3 And Fig. 4, in the first embodiment of the present utility model, a swing-up type one-way valve disc for a self-priming pump includes a valve disc body 1, a connecting plate 2 is fixedly connected to the top of the valve disc body 1, a hanging shaft 3 is fixedly connected to the top of the connecting plate 2, positioning rubber blocks 6 are arranged at both ends of the hanging shaft 3, an inner groove 4 is opened on the front surface of the valve disc body 1, a sealing strip 5 is embedded and installed inside the inner groove 4, and a counterweight 10 is arranged inside the valve disc body 1.

[0019] Preferably, an inner tube 7 is embedded and installed inside the positioning rubber block 6, the end of the hanging shaft 3 is rotatably arranged inside the inner tube 7, clamping layers 8 are fixedly bonded to the upper and lower surfaces of the positioning rubber block 6, and an anti-slip surface 9 is arranged on the surface of the clamping layer 8 away from the positioning rubber block 6.

[0020] Preferably, the positioning rubber block 6 is made of rubber, and the inner tube 7 and the clamping layers 8 are both made of hard plastic.

[0021] Preferably, the counterweight 10 is located at the lower end inside the valve plate body 1, and the counterweight 10 is arranged deviating from the central plane of the valve plate body 1, and the deviation direction is the side away from the sealing strip 5.

[0022] Preferably, the inner groove 4 is arranged in an annular groove shape, and the sealing strip 5 is arranged in an annular shape.

[0023] In Figure 2 the second embodiment, the difference from the first embodiment is that the inner groove 4 is arranged in a circular groove shape, the sealing strip 5 is arranged in a circular sheet shape, and the rest is the same as the embodiment.

[0024] The working principle of the present utility model is as follows: when using this one-way valve plate, first put the positioning rubber block 6 on both ends of the hanging shaft 3. The hanging shaft 3 can rotate inside the inner tube 7, which is convenient for opening the valve plate body 1. Then, the positioning rubber block 6 is snapped into the groove of the pump body for installing the one-way valve plate, so that the sealing strip 5 faces the front side in the water delivery direction inside the pump body. Since the positioning rubber block 6 is made of rubber and has a certain elasticity, and under the action of the anti-slip surface 9, it can prevent the positioning rubber block 6 from falling off the inner groove of the pump body. When water acts on the surface of the valve plate body 1, the lower end of the valve plate body 1 can be pushed open, so that water can pass through. When water wants to pass through in the reverse direction, the water will act on the surface of the valve plate body 1, so that the sealing strip 5 can fit the end of the through hole inside the pump body, thereby isolating water. And because a counterweight 10 is arranged inside the valve plate body 1 and the counterweight 10 is eccentrically arranged, when the valve plate body 1 hangs freely, in order to maintain balance, the counterweight 10 will deflect a small angle towards the middle, so that the lower end of the valve plate body 1 deflects towards the side with the sealing strip 5. When the valve plate body 1 is installed inside the pump body, due to the action of the counterweight 10, the lower end of the valve plate body 1 deflects towards the side with the sealing strip 5, so that the valve plate body 1 can fit more closely to the end of the through hole inside the pump body, enhancing the sealing effect.

[0025] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A swing-up check valve disc for a self-priming pump, comprising a valve disc body (1), characterized in that: A connecting plate (2) is fixedly connected to the top of the valve plate body (1). A hanging shaft (3) is fixedly connected to the top of the connecting plate (2). Positioning rubber blocks (6) are arranged at both ends of the hanging shaft (3). An inner groove (4) is formed in the front surface of the valve plate body (1). A sealing strip (5) is embedded in the inner groove (4). A counterweight (10) is arranged inside the valve plate body (1).

2. The swing-up type one-way valve disc for a self-priming pump according to claim 1, wherein: An inner tube (7) is embedded in the positioning rubber block (6). The end of the hanging shaft (3) is rotatably arranged inside the inner tube (7). Clamping layers (8) are fixedly bonded to the upper and lower surfaces of the positioning rubber block (6). An anti-slip surface (9) is arranged on the surface of the clamping layer (8) away from the positioning rubber block (6).

3. The swing-up type check valve disc for a self-priming pump according to claim 2, characterized in that: The positioning rubber block (6) is made of rubber, and the inner tube (7) and the clamping layer (8) are both made of hard plastic.

4. The swing-up type one-way valve disc for a self-priming pump according to claim 1, wherein: The counterweight (10) is located at the lower end inside the valve plate body (1), and the counterweight (10) is arranged deviating from the central plane of the valve plate body (1), and the deviation direction is the side away from the sealing strip (5).

5. The swing-up check valve disc for a self-priming pump according to claim 3 or 4, characterized in that: The inner groove (4) is arranged in a ring-shaped groove, and the sealing strip (5) is arranged in a ring shape.

6. The swing-up one-way valve disc for a self-priming pump according to claim 3 or 4, characterized in that: The inner groove (4) is arranged in a circular groove, and the sealing strip (5) is arranged in a circular sheet shape.

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