SAE flange type stacked one-way valve

Abstract

The utility model relates to the technical field of hydraulic one-way valves, and discloses an SAE flange type stacked one-way valve, which comprises an equipment main body, the equipment main body comprises an SAE flange plate, and one end of the SAE flange plate is provided with a screw through hole; the valve element is arranged to be responsible for controlling flowing of liquid, closing and opening are achieved through contact with the limiting ring, the size is small, the manufacturing process is simple, the spring is arranged, oil liquid is controlled to pass through through the restoring force of the spring, the valve element can be rapidly closed, and when the valve element is closed, a closed environment is formed between the valve element and the limiting ring; oil can only flow in one direction, certain opening pressure is achieved, reverse flowing of fluid is prevented, a sealing ring is arranged, after the fixing plug screw is in threaded connection with the inner wall of the liquid outlet pipe, the fixing plug screw and the valve seat can be fastened through the sealing ring, the sealing performance is enhanced, the structure is simple, the occupied space is small, and the cost is saved; the practicability of the device is effectively enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic one-way valves, in particular to a SAE flange type superimposed one-way valve. Background Art

[0002] A one-way valve is a directional control valve that allows air to flow in only one direction but not in the opposite direction. A one-way valve, also known as a check valve or a non-return valve, controls the direction of fluid flow. One end allows fluid flow, while the other end blocks fluid flow. It is widely used in hydraulics, pneumatics, lubrication and other fields. A one-way valve prevents the reverse flow of fluid through an automatically resetting valve disc. According to the resetting principle of the valve disc, one-way valves include spring type, gravity type, etc. The interior of a one-way valve is usually composed of components such as a spring, a spring bracket, a locating pin, a sealing ring and a plug.

[0003] Existing one-way valves include tubular one-way valves and plate one-way valves. During use, they have many associated accessories or occupy a large space, resulting in an increase in material costs. Therefore, improvements are needed. A SAE flange type stacked one-way valve is proposed. Utility Model Content

[0004] The utility model aims to provide a SAE flange type stacked check valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an SAE flange type stacked one-way valve, comprising a device body, the device body comprising:

[0006] The SAE flange plate has a screw through hole at one end.

[0007] Furthermore, a valve seat is fixedly connected to one side of the SAE flange plate.

[0008] Furthermore, a liquid inlet pipe is provided at the left end of the valve seat.

[0009] Furthermore, a liquid outlet pipe is provided on the right side of the SAE flange plate, and the liquid outlet pipe is connected to the liquid inlet pipe.

[0010] Furthermore, the outer end of the liquid inlet pipe is fixedly connected to a limit ring, a valve core is provided on one side of the limit ring, the valve core is horizontally slidably connected to the liquid inlet pipe, and the diameter of the valve core is larger than the inner diameter of the limit ring.

[0011] Furthermore, channels are provided at the upper and lower ends of the valve core, and there is a certain distance between the channel and the inner wall of the liquid inlet pipe.

[0012] Furthermore, an annular limiting groove is provided on the right side of the valve core, and a spring is fixedly connected to one end of the annular limiting groove.

[0013] Furthermore, a threaded hole is provided on the inner wall of the liquid outlet pipe, and a fixing screw plug is threadedly connected to the middle of the threaded hole.

[0014] Furthermore, a sealing ring is fixedly connected to the inner ring of the fixing screw plug.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By setting the valve core, it is responsible for controlling the flow of liquid, and closing and opening are achieved through contact with the limit ring. It has a small size and a simple manufacturing process. By setting a spring, the restoring force of the spring is used to control the passage of oil, so that the valve core can be quickly closed. When the valve core is closed, a closed environment is formed between the valve core and the limit ring, and the oil can only flow in one direction. It has a certain opening pressure to prevent the reverse flow of the fluid. By setting a sealing ring, after the fixed screw plug is threadedly connected to the inner wall of the outlet pipe, the sealing ring can make the fixed screw plug and the valve seat tighter and the sealing is enhanced. The structure is simple and occupies less space, which saves costs and effectively enhances the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 This is a front cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 It is a right view structural schematic diagram of the utility model.

[0021] In the figure: 1. Equipment body; 101. Spring; 102. Threaded hole; 103. Fixing screw plug; 104. Sealing ring; 11. SAE flange plate; 12. Screw through hole; 13. Valve seat; 14. Liquid inlet pipe; 15. Liquid outlet pipe; 16. Limiting ring; 17. Valve core; 18. Channel; 19. Annular limiting groove. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-3 The utility model provides a technical solution for an SAE flange type stacked one-way valve: an SAE flange type stacked one-way valve, comprising an equipment body 1, the equipment body 1 comprising: an SAE flange plate 11, one end of the SAE flange plate 11 is provided with a screw through hole 12, one side of the SAE flange plate 11 is fixedly connected with a valve seat 13, the left end of the valve seat 13 is provided with a liquid inlet pipe 14, the right side of the SAE flange plate 11 is provided with a liquid outlet pipe 15, the liquid outlet pipe 15 is connected with the liquid inlet pipe 14, the outer end of the liquid inlet pipe 14 is fixedly connected with a limiting ring 16, one side of the limiting ring 16 is provided with a valve core 17, the valve core 17 is provided, which is responsible for controlling the flow of liquid, and is closed and opened by contacting with the limiting ring 16, the valve core 17 is small in size, and the manufacturing process is simple, and the valve core 17 is horizontally slidably connected at the liquid inlet pipe 14;

[0026] The diameter of the valve core 17 is larger than the inner diameter of the limiting ring 16. Channels 18 are provided at the upper and lower ends of the valve core 17. There is a certain distance between the channel 18 and the inner wall of the liquid inlet pipe 14. An annular limiting groove 19 is provided on the right side of the valve core 17. A spring 101 is fixedly connected to one end of the annular limiting groove 19. By setting the spring 101 and utilizing the restoring force of the spring 101, the oil passage is controlled so that the valve core 17 can be quickly closed. When the valve core 17 is closed, a closed environment is formed between the valve core 17 and the limiting ring 16, and the oil can only flow from one direction, which has a certain opening. The starting pressure is used to prevent the reverse flow of the fluid. A threaded hole 102 is provided on the inner wall of the liquid outlet pipe 15. A fixed screw plug 103 is connected to the middle thread of the threaded hole 102. The fixed screw plug 103 is provided to facilitate installation and disassembly. A sealing ring 104 is fixedly connected to the inner ring of the fixed screw plug 103. The sealing ring 104 is provided. After the fixed screw plug 103 is threadedly connected to the inner wall of the liquid outlet pipe 15, the sealing ring 104 can make the fixed screw plug 103 and the valve seat 13 more tightly, and the sealing is enhanced. The structure is simple and occupies less space, which saves costs and effectively enhances the practicality of the device.

[0027] The utility model sets a device body 1, and the hand valve adopts a spring 101 to adjust the valve core 17, which can be superimposed between the oil pump and the high-pressure hose, or superimposed in the pipeline. When in use, when the oil enters the valve seat 13 from the inlet of the valve seat 13, the force of the oil will push the valve core 17 to move rightward to open, and under the pressure of the liquid, the oil flows out from the outlet pipe 15 of the valve seat 13. When the oil flows in the reverse direction from the outlet pipe 15, the reverse pressure will make the valve core 17 move in the direction of the limit ring 16, so as to close the channel 18 and prevent the reverse flow of the oil. By setting the valve core 17, it is responsible for controlling the flow of the liquid, and the closing is achieved by contacting with the limit ring 16. The valve body 102 is a kind of airtight valve that is used for sealing and opening, has a small size and a simple manufacturing process. By setting a spring 101 and utilizing the restoring force of the spring 101 to control the passage of oil, the valve core 17 can be quickly closed. When the valve core 17 is closed, a closed environment is formed between the valve core 17 and the limit ring 16, and the oil can only flow in one direction, with a certain opening pressure to prevent the reverse flow of the fluid. By setting a sealing ring 104, after the fixing screw plug 103 is threadedly connected to the inner wall of the liquid outlet pipe 15, the sealing ring 104 can make the fixing screw plug 103 and the valve seat 13 more tightened, and the sealing is enhanced. The structure is simple and occupies less space, which saves costs and effectively enhances the practicability of the device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A SAE flange type stacked check valve, comprising a device body (1), characterized in that: The device body (1) comprises: An SAE flange plate (11), wherein one end of the SAE flange plate (11) is provided with a screw through hole (12), one side of the SAE flange plate (11) is fixedly connected to a valve seat (13), a left end of the valve seat (13) is provided with a liquid inlet pipe (14), a right side of the SAE flange plate (11) is provided with a liquid outlet pipe (15), the liquid outlet pipe (15) is connected to the liquid inlet pipe (14), and the outer end of the liquid inlet pipe (14) is fixedly connected to a limit ring (16); A valve core (17) is provided on one side of the limiting ring (16), and the valve core (17) is horizontally slidably connected to the liquid inlet pipe (14). The diameter of the valve core (17) is larger than the inner diameter of the limiting ring (16). Channels (18) are provided at the upper and lower ends of the valve core (17), and there is a certain distance between the channel (18) and the inner wall of the liquid inlet pipe (14). An annular limiting groove (19) is provided on the right side of the valve core (17), and one end of the annular limiting groove (19) is fixedly connected to a spring (101).

2. The SAE flange type stacked check valve according to claim 1, characterized in that: A threaded hole (102) is provided on the inner wall of the liquid outlet pipe (15), and a fixing screw plug (103) is threadedly connected to the middle of the threaded hole (102).

3. The SAE flange type stacked check valve according to claim 2, characterized in that: The inner ring of the fixing screw plug (103) is fixedly connected with a sealing ring (104).

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