Metallic mechanical one-way valve

Abstract

The utility model relates to one -way valve technical field, concretely for a kind of metal mechanical one-way valve, including sleeve shell, the inside bottom end fixed connection of sleeve shell is limited seat, the water inlet is fixedly arranged in the center of limited seat top, limited ring is fixedly connected in the outside of limited seat top, sleeve shell inside is provided with one-way control mechanism, fluid enters the inside of sleeve shell by water inlet, by in oil pressure push valve pearl, and deformation and displacement are generated to spring, to open the through hole, make fluid flow out from the through hole and enter the inside of sleeve shell, to realize the function of oil one-way conduction, allow fluid to flow freely in one direction, and completely prevent its flow in opposite direction, simple structure, in assembly, maintenance, adaptability and cost control aspect all have obvious advantage, guarantee practical application experience and system operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of one-way valve technology, specifically a metal mechanical one-way valve. Background Technology

[0002] Metal mechanical check valves are core control components in hydraulic systems, pneumatic systems, fluid delivery pipelines, and other fields. Their core function is to achieve unidirectional fluid flow by relying on the mechanical movement of the metal structure (such as the lifting and flipping of the valve core), preventing reverse backflow, thereby ensuring stable system pressure and controllable fluid flow. They are widely used in engineering machinery, automotive hydraulic systems, industrial pipelines, marine power plants, and other scenarios.

[0003] Currently, most mainstream metal mechanical check valves on the market suffer from overly complex structural designs, leading to numerous problems in assembly, maintenance, compatibility, and cost control, which seriously affect the actual application experience and system operating efficiency.

[0004] Therefore, we provide a metal mechanical check valve. Utility Model Content

[0005] To solve the above technical problems, this application provides a metal mechanical one-way valve, including a sleeve shell, a limiting seat fixedly connected to the bottom of the sleeve shell, an inlet fixedly opened at the top center of the limiting seat, a limiting ring fixedly connected to the outer side of the top of the limiting seat, and a one-way control mechanism provided inside the sleeve shell.

[0006] In some embodiments, the one-way control mechanism includes a support ring fixedly connected to the top of the limiting seat, a valve core chamber fixedly connected to the top of the support ring, a plurality of through holes evenly distributed in a circular array fixedly opened on the outer side of the valve core chamber, a valve ball provided inside the valve core chamber, a support sleeve fixedly connected to the top of the valve core chamber, and a spring fixedly connected to the top end of the support sleeve.

[0007] In some embodiments, the support ring and the limiting seat are sealed by welding, and the diameter of the water inlet is smaller than the diameter of the valve ball.

[0008] In some embodiments, the size of the support ring is adapted to the size of the limiting ring.

[0009] In some embodiments, the size of the valve bead is adapted to the inner diameter of the valve core chamber, and the through hole communicates with the interior of the sleeve housing.

[0010] In some embodiments, the top of the valve ball is fixedly connected to the bottom of the spring, and a damper is provided inside the spring.

[0011] In some embodiments, the top of the sleeve housing is provided with a valve pin, the top of the valve pin is fixedly provided with a water outlet, and the bottom of the valve pin is fixedly connected with a fixing member.

[0012] In some embodiments, the valve pin is fixedly connected to the top of the sleeve housing by a fixing member provided at the bottom.

[0013] In some embodiments, the top outer side of the sleeve housing is fixedly provided with threaded teeth.

[0014] In some embodiments, the outer bottom of the sleeve housing is provided with a chamfer at a 60° angle.

[0015] This utility model has at least the following beneficial effects: This utility model, through the combined use of a limiting seat, a limiting ring, and a one-way control mechanism, allows fluid to enter the sleeve housing through the inlet. The oil pressure pushes the valve ball, causing deformation and displacement of the spring, thereby opening the through-hole and allowing the fluid to flow out and into the sleeve housing. This achieves the function of one-way oil flow, allowing fluid to flow freely in one direction while completely preventing its flow in the opposite direction. The structure is simple and has significant advantages in assembly, maintenance, adaptability, and cost control, ensuring a good user experience and efficient system operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall internal cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the overall internal cross-section of this utility model. Figure 4 This is a schematic diagram of the internal cross-sectional structure of the sleeve shell of this utility model; Figure 5 This is a schematic diagram of the overall structure of the unidirectional control mechanism of this utility model; Figure 6 This is a schematic diagram of the internal cross-sectional structure of the unidirectional control mechanism of this utility model; Figure 7 This is a bottom view of the overall internal cross-section structure of this utility model; Figure 8 This is a schematic diagram of the internal structure of this utility model; Figure 9 This is an exploded view of the entire utility model.

[0017] In the diagram: 1. Sleeve housing; 101. Threaded teeth; 102. Inlet; 103. Limiting ring; 104. Limiting seat; 2. Valve pin; 201. Outlet; 202. Fixing component; 3. One-way control mechanism; 301. Support sleeve; 302. Valve core chamber; 303. Through hole; 304. Supporting ring; 305. Spring; 306. Valve ball. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: Please refer to Figure 1-8 This utility model provides a technical solution: a metal mechanical one-way valve, including a sleeve shell 1, a limiting seat 104 fixedly connected to the bottom of the sleeve shell 1, an inlet 102 fixedly opened at the top center of the limiting seat 104, a limiting ring 103 fixedly connected to the outer side of the top of the limiting seat 104, and a one-way control mechanism 3 set inside the sleeve shell 1. The structure is simple and has obvious advantages in assembly, maintenance, adaptability and cost control, ensuring the actual application experience and system operation efficiency.

[0020] The one-way control mechanism 3 includes a support ring 304 fixedly connected to the top of the limiting seat 104. A valve core chamber 302 is fixedly connected to the top of the support ring 304. Several through holes 303 arranged in a circular array are fixedly opened on the outer side of the valve core chamber 302. A valve ball 306 is provided inside the valve core chamber 302. A support sleeve 301 is fixedly connected to the top of the valve core chamber 302. A spring 305 is fixedly connected to the top of the support sleeve 301. The support ring 304 and the limiting seat 104 are sealed by welding. The diameter of the inlet 102 is smaller than the diameter of the valve ball 306. The size of the support ring 304 is adapted to the size of the limiting ring 103. The size of the valve ball 306 is adapted to the inner diameter of the valve core chamber 302. The through hole 303 is connected to the inside of the sleeve housing 1. The top of the valve ball 306 is fixedly connected to the bottom of the spring 305. A damper is provided inside the spring 305. Fluid enters the inside of the sleeve housing 1 through the inlet 102. By pushing the valve ball 306 with oil pressure, the spring 305 is deformed and displaced, thereby opening the through hole 303 and allowing the fluid to flow out from the through hole 303 and into the inside of the sleeve housing 1. This realizes the function of unidirectional oil flow, allowing the fluid to flow freely in one direction and completely preventing its flow in the opposite direction. The structure is simple and has obvious advantages in assembly, maintenance, adaptability and cost control, ensuring practical application experience and system operating efficiency.

[0021] Example 2: Please refer to Figure 9 This utility model provides a technical solution: a valve pin 2 is provided on the top of the sleeve shell 1, an outlet 201 is fixedly opened on the top of the valve pin 2, a fixing member 202 is fixedly connected to the bottom of the valve pin 2, the valve pin 2 is fixedly connected to the top of the sleeve shell 1 through the fixing member 202 at the bottom, a threaded tooth 101 is fixedly opened on the top of the outer side of the sleeve shell 1, and a chamfer set at 60° is opened on the outer side of the bottom of the sleeve shell 1. The valve pin 2 is used for connection and positioning, and the threaded tooth 101 can also facilitate the better installation of the one-way valve and improve efficiency.

[0022] The working process of this utility model is as follows: Forward flow (open state): When fluid flows in from the valve inlet 102, the fluid pressure pushes the valve ball 306 inside the valve, causing it to leave the limit seat 103 (sealing surface); the valve ball 306 is pushed up, opening a channel, allowing the fluid to bypass the ball and flow out from the outlet 201.

[0023] Reverse flow or zero flow (closed state): When the pressure at the inlet 102 decreases or disappears (e.g., the pump stops working), the pressure (back pressure) or gravity (and possibly spring force) at the outlet 201 will push the valve ball 306 back down; the valve ball 306 fits tightly against the sealing surface of the limit seat 103, forming a metal-to-metal (or other sealing material) sealing barrier, thereby effectively preventing the fluid from flowing backward.

[0024] Preventing backflow (core function): If the pressure at the outlet 201 is higher than that at the inlet 102, this pressure difference will press the valve ball 306 onto the limit seat 103 more quickly and tightly, ensuring a tighter seal and completely preventing backflow.

[0025] Function: To prevent oil from flowing back when the pump stops, to protect the pump from impact, and to maintain system pressure.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal mechanical check valve, comprising a sleeve housing (1), characterized in that: The sleeve housing (1) is fixedly connected to the bottom of the inner end of the sleeve housing (1), and the inlet (102) is fixedly opened at the top center of the limiting seat (104). The limiting ring (103) is fixedly connected to the outer side of the top of the limiting seat (104). A one-way control mechanism (3) is provided inside the sleeve housing (1). The one-way control mechanism (3) includes a support ring (304) fixedly connected to the top of the limiting seat (104). A valve core chamber (302) is fixedly connected to the top of the support ring (304). A plurality of through holes (303) arranged in a circular array are fixedly opened on the outside of the valve core chamber (302). A valve ball (306) is provided inside the valve core chamber (302). A support sleeve (301) is fixedly connected to the top of the valve core chamber (302). A spring (305) is fixedly connected to the top of the support sleeve (301).

2. The metal mechanical check valve according to claim 1, characterized in that: The support ring (304) and the limiting seat (104) are sealed by welding, and the diameter of the water inlet (102) is smaller than the diameter of the valve ball (306).

3. A metal mechanical check valve according to claim 1, characterized in that: The size of the support ring (304) is adapted to the size of the limiting ring (103).

4. A metal mechanical check valve according to claim 1, characterized in that: The size of the valve bead (306) is adapted to the inner diameter of the valve core chamber (302), and the through hole (303) is connected to the inside of the sleeve shell (1).

5. A metal mechanical check valve according to claim 1, characterized in that: The top of the valve ball (306) is fixedly connected to the bottom of the spring (305), and the spring (305) is provided with a damper inside.

6. A metal mechanical check valve according to claim 1, characterized in that: The sleeve housing (1) is provided with a valve pin (2) at the top, and the valve pin (2) is fixedly provided with an outlet (201) at the top, and a fastener (202) is fixedly connected to the bottom of the valve pin (2).

7. A metal mechanical check valve according to claim 6, characterized in that: The valve pin (2) is fixedly connected to the top of the sleeve housing (1) by a fixing piece (202) provided at the bottom.

8. A metal mechanical check valve according to claim 1, characterized in that: The sleeve housing (1) has a threaded tooth (101) fixedly opened on the top of the outer side.

9. A metal mechanical check valve according to claim 1, characterized in that: The outer bottom of the sleeve shell (1) has a chamfer set at 60°.

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