Water inlet one-way valve for spinning

Abstract

The water inlet one-way valve comprises a water outlet cover, a base, a ceramic chip and a valve element, a guide hole is formed in the center of the water outlet cover, and water outlet holes are formed in the periphery of the guide hole; an upper crotch stopping part is arranged at the lower end part of the guide hole; the ceramic chip is coaxially embedded in the base, the water outlet seat is coaxially fixed on the base, and the valve core is coaxially mounted in a guide hole in the water outlet cover. The one-way valve has the advantages of high response frequency, long service life, excellent sealing performance and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a check valve, especially to a water inlet check valve for textile. BACKGROUND

[0002] The water inlet check valve for textile is a check valve used on a water pump. At present, the check valve is provided with a compression spring on a valve core, aiming at realizing quick closing positioning. However, this structure has a disadvantage that the opening speed of the water inlet check valve is delayed in the water suction state of the water pump. Since the check valve also has inaccurate center positioning, the wear surfaces of the check valve and the ceramic plate are not at the same place, further leading to poor sealing. SUMMARY

[0003] The utility model discloses a water inlet check valve for textile, which overcomes the defects of the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A water inlet check valve for textile comprises a water outlet cover, a base, a ceramic plate and a valve core.

[0006] The water outlet cover is provided with a guide hole in the center, and a water outlet hole is arranged around the guide hole. The lower end of the guide hole is provided with an upper stop crotch part.

[0007] The ceramic plate is coaxially embedded in the base, the water outlet cover is coaxially fixed on the base, and the valve core is coaxially installed in the guide hole of the water outlet cover.

[0008] In the water inlet check valve for textile, the valve core comprises a core seat, and the lower end surface of the core seat is provided with a first sealing surface matching the end surface of the ceramic plate.

[0009] In the water inlet check valve for textile, the upper end surface of the core seat is provided with an upper end part.

[0010] In the water inlet check valve for textile, the core seat is provided with a guide rod matching the guide hole in the center.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model has faster opening speed through the spring-free design.

[0013] The utility model also has accurate center positioning, and the wear parts are relatively concentrated at the same place through the precise cooperation of the guide hole on the water outlet cover and the guide rod on the valve core, which not only has good sealing, but also further prolongs the service life. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model makes further illustration in combination with drawings:

[0015] Figure 1 It is the structure schematic drawing of the water inlet one-way valve open state in the utility model;

[0016] Figure 2 It is the structure schematic drawing of the water inlet one-way valve closed state in the utility model;

[0017] Figure 3 It is the external structure schematic drawing of the water outlet cover in the utility model;

[0018] Figure 4 It is the internal structure schematic drawing of the water outlet cover in the utility model;

[0019] Figure 5 It is the structure schematic drawing of the valve core in the utility model;

[0020] In the drawing, 1-water outlet cover, 101-inner cavity, 102-guide hole, 103-water outlet hole, 104-upper sealing ring groove, 105-upper stop crotch part;2-base, 3-ceramic sheet, 4-valve core, 401-guide rod, 402-core seat, 403-first sealing surface, 404-upper end part. Specific implementation

[0021] The technical scheme of the utility model is further specifically illustrated below through examples.

[0022] Referring to Figures 1 to 5 Further illustrate each component and connecting mode of the water inlet one-way valve for weaving in the utility model, as follows:

[0023] The water inlet one-way valve for weaving, including water outlet cover 1, base 2, ceramic sheet 3, valve core 4,

[0024] Referring to Figure 3 And Figure 4 As shown in the drawing, the center of water outlet cover 1 is provided with guide hole 102, and the periphery of guide hole 102 is provided with water outlet hole 103;The number of water outlet hole 103 depends on the flow area of the water inlet hole of ceramic sheet 3, that is, the flow area of single water outlet hole 103 × the number of water outlet hole 103 ≥ the flow area of water inlet hole, and the principle of this design is to further reduce the valve resistance. Secondly, upper stop crotch part 105 is arranged at the lower end part of guide hole 102, and the purpose is to limit the water absorption stroke of valve core 4, and the flow area of water inlet = the circumference of ceramic sheet 3 water inlet hole × water absorption stroke. In order to further ensure the service life of the sealing ring, an upper sealing ring groove 104 is designed around water outlet hole 103 in the utility model.

[0025] Referring to Figure 1 And Figure 2As shown, the ceramic piece 3 is coaxially embedded in the base 2 , the water outlet cover 1 is coaxially fixed on the base 2 , and the valve core 4 is coaxially installed in the guide hole 102 on the water outlet cover 1 .

[0026] Reference Figure 5 In order to further explain the valve core 4, the technical features of the valve core 4 are further described as follows:

[0027] The valve core includes a core seat 402, and the lower end face of the core seat 402 is provided with a first sealing surface 403 that matches the end face of the ceramic piece 3; the purpose is: when the water inlet one-way valve is closed, there is no internal leakage of water in the entire water pump, ensuring that the water pressure inside the pump will not decrease.

[0028] In order to ensure that the rising position of the valve core 4 is further restricted, an upper end portion 404 is provided on the upper end surface of the core seat 402;

[0029] To ensure that the first sealing surface 403 of the valve core 4 and the end surface of the ceramic plate 3 contact the same point when the valve core 4 is closed, a guide rod 401 is provided at the center of the core seat 402 to match the guide hole 102. To ensure accurate center positioning, the length of the guide hole 102 and the length of the guide rod 401 must be ≥ 3 mm.

[0030] In summary, the working principle of the present invention is further described as follows:

[0031] Reference Figure 1 As shown, when the water pump is absorbing water, negative pressure is formed inside the pump, and the valve core 4 rises rapidly under the action of the negative pressure. When the upper crotch stop 105 contacts the upper end 404, the valve core 4 stops rising. Since the valve core 4 has no spring and is made of engineering plastic with a light weight, the valve core 4 rises quickly.

[0032] Reference Figure 2 As shown, when the water pump is spraying water, the plunger inside the pump, under the pressure of the spring, quickly converts the previously stored potential energy into kinetic energy, and the valve core 4 quickly closes under the action of the high water pressure. Due to the precise fit between the guide hole 102 and the long lead of the guide rod 401, the closing point of the valve core 4 and the ceramic plate 3 are concentrated in the same place, ensuring the consistency of the seal.

[0033] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made based on the essence of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A water inlet check valve for textile use, characterized by: It includes a water outlet cover (1), a base (2), a ceramic sheet (3), and a valve core (4). A guide hole (102) is provided at the center of the water outlet cover (1), and water outlet holes (103) are provided around the guide hole (102); an upper crotch stop (105) is provided at the lower end of the guide hole (102); The ceramic piece (3) is coaxially embedded in the base (2), the water outlet cover (1) is coaxially fixed on the base (2), and the valve core (4) is coaxially installed in the guide hole (102) on the water outlet cover (1).

2. A water inlet check valve for textile use according to claim 1, characterized in that: The valve core (4) includes a core seat (402), the lower end surface of the core seat (402) is provided with a first sealing surface (403) that matches the end surface of the ceramic sheet (3), and the upper end surface of the core seat (402) is provided with an upper end portion (404); A guide rod (401) matching the guide hole (102) is provided at the center of the core seat (402).

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