Pressure damper for a water inlet valve

Abstract

The utility model discloses a pressure damper for water inlet valve, including damper body, damper body is cylindrical, the first cavity is recessed to one end of damper body, and the second cavity is recessed on the lateral wall of damper body, the second cavity forms sealed cavity with rear end cover after damper body and rear end cover assembly. The utility model discloses the damper is in the rear end cover, and the air cavity formed with the second cavity and rear end cover is used to absorb the pressure impact in the rear end cover, and then reduces the noise. The support rib is arranged on the lateral wall of damper, and the strength of damper is increased, and the deformation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware, and in particular to a pressure damper for a water inlet valve. Background Technology

[0002] Chinese Patent CN 103925409 B discloses a water tank inlet valve. The water entering the valve body is divided into two paths. One path passes through the valve plate's liquid passage groove and the gap between the valve plate and the valve body, entering the rear end cover and exiting through a residual hole in the rear end cover. When the liquid passage hole in the rear end cover is blocked, the pressure on both sides of the valve plate is the same. Because the force-bearing area of ​​the valve plate facing the water-stop diaphragm is smaller than that facing the rear end cover, the pressure on the valve plate facing the rear end cover is greater than the pressure on the valve plate facing the water-stop diaphragm. This causes the valve plate to slide towards the water-stop diaphragm, blocking the gap between the water-stop diaphragm and the valve body. Water cannot flow out from the opening at the lower end of the valve body, and the inlet valve is closed. It is evident that during the closing process, the pressure inside the cavity fluctuates, generating significant noise. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the main purpose of this utility model is to overcome the shortcomings of the prior art and disclose a pressure damper for a water inlet valve, including a damper body, the damper body is cylindrical, a first cavity is recessed at one end of the damper body, and a second cavity is recessed on the side wall of the damper body; after the damper body is assembled with the rear end cover, the second cavity and the rear end cover form a sealed cavity.

[0004] Furthermore, a sealing ring is radially protruding around the opening of the second cavity.

[0005] Furthermore, the sidewall of the shock absorber body has radially protruding positioning strips.

[0006] Furthermore, the sidewall of the shock absorber body is provided with several supporting ribs at intervals around its circumference.

[0007] Furthermore, the body of the pressure shock absorber is made of silicone.

[0008] The beneficial effects achieved by this utility model are as follows:

[0009] The shock absorber of this invention is installed inside the rear end cover. The air cavity formed by the second chamber and the rear end cover absorbs the pressure impact within the rear end cover, thereby reducing noise. Supporting ribs are provided on the side wall of the shock absorber to increase its strength and prevent deformation. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of a pressure damper for a water inlet valve according to the present invention;

[0011] Figure 2 This is a three-dimensional structural schematic diagram of a pressure damper for a water inlet valve according to this utility model from another perspective.

[0012] Figure 3 for Figure 1 Top view;

[0013] Figure 4 for Figure 3 AA section view;

[0014] Figure 5 This is a schematic diagram of the cooperation between a pressure damper for a water inlet valve and a water inlet valve according to the present invention;

[0015] The attached figures are labeled as follows:

[0016] 1. Shock absorber body; 2. First cavity; 3. Second cavity; 4. Sealing ring; 5. Positioning strip; 6. Supporting rib; 7. Rear end cover. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0018] A pressure damper for an inlet valve, such as Figures 1-5 As shown, the device includes a shock absorber body 1, which is cylindrical. A first cavity 2 is recessed at one end of the shock absorber body 1, and a second cavity 3 is recessed on the side wall of the shock absorber body 1. After the shock absorber body 1 is assembled with the rear end cover 7, the second cavity 3 and the rear end cover 7 form a sealed cavity. Therefore, during the closing process of the water inlet valve, the pressure impact is mitigated by the second cavity 3, thereby reducing noise during the closing process.

[0019] In one embodiment, such as Figures 1-5 As shown, a sealing ring 4 is radially protruding around the opening of the second cavity 3. When the shock absorber body 1 is assembled with the rear end cover 7, the sealing ring 4 is tightly attached to the inner wall of the rear end cover 7, thus sealing the second cavity 3.

[0020] In one embodiment, such as Figures 1-5 As shown, a positioning strip 5 is radially protruding from the side wall of the shock absorber body 1. The positioning strip 5 cooperates with the groove in the rear end cover 7 to fix the shock absorber body 1 and prevent it from shifting during use.

[0021] In one embodiment, such as Figures 1-5As shown, several supporting ribs 6 are arranged at intervals around the side wall of the shock absorber body 1. The supporting ribs significantly improve the bending and torsional resistance of the shock absorber body by increasing the moment of inertia of the cross section, thus preventing deformation.

[0022] In one embodiment, such as Figures 1-5 As shown, the pressure shock absorber body 1 is made of silicone.

[0023] When using this utility model, such as Figures 1-5 As shown, the pressure damper is installed inside the rear cover 7. During the process of closing the water inlet valve, the water pressure acts on the partition between the first cavity 2 and the second cavity 3. The second cavity 3 is a gas cavity. The water pressure is reduced through the gas cavity, thereby achieving noise reduction.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any modifications or equivalent substitutions to the present utility model without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present utility model.

Claims

1. A pressure damper for an inlet valve, characterized in that, The device includes a shock absorber body, which is cylindrical in shape. A first cavity is recessed at one end of the shock absorber body, and a second cavity is recessed on the side wall of the shock absorber body. After the shock absorber body is assembled with the rear end cover, the second cavity and the rear end cover form a sealed cavity.

2. A pressure damper for an inlet valve according to claim 1, characterized in that, A sealing ring is radially protruding around the opening of the second cavity.

3. A pressure damper for an inlet valve according to claim 1, characterized in that, The side wall of the shock absorber body has radially protruding positioning strips.

4. A pressure damper for an inlet valve according to claim 1, characterized in that, The shock absorber body has several supporting ribs spaced around its circumference on its side wall.

5. A pressure damper for an inlet valve according to claim 1, characterized in that, The pressure damper body is made of silicone.

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