Ball type self-centering one-way valve assembly

Abstract

The invention relates to the technical field of ball type one-way valves, in particular to a ball type self-centering one-way valve assembly which comprises a pressure container, a sealing one-way valve assembly, a connecting piece, an external connecting pipe and a fastening piece. The left end of the hollow screw and the right end of the sealing ring are in extrusion fit contact, so that the cambered surface of the left end of the sealing ring and the cambered surface of the inner wall of the left end of the barrel are in fit contact, a thread line arranged on the outer side of the connecting barrel is assembled with the inner wall of the barrel in a threaded mode, and a clamping pipe is arranged in a first rubber sleeve in a fit mode; by means of the arrangement, the modular assembly mode is adopted for the structure body, and regular disassembly, assembly, maintenance and replacement of internal components are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of ball-type one-way valves, in particular to a ball-type self-centering one-way valve assembly. Background Art

[0002] Nitrogen spring is a new type of elastic component that uses high-pressure nitrogen as the working medium. It has the advantages of small size, large elastic force, long stroke, and smooth operation. Taking the pressure vessel that requires a one-way sealed nitrogen spring product as an example, a one-way valve assembly needs to be installed inside the pressure vessel.

[0003] The ball-type self-centering one-way valve assembly installed inside some pressure vessels has an assembly method adopted by its main structure, which makes it inconvenient to regularly disassemble, maintain and replace the internal components. Therefore, a ball-type self-centering one-way valve assembly is proposed to address the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a ball-type self-centering one-way valve assembly, which is used to solve the problem that the ball-type self-centering one-way valve assembly installed inside some pressure vessels adopts an assembly method that makes it inconvenient to regularly disassemble, maintain and replace the internal components.

[0005] To achieve the above object, the present invention provides the following technical solutions: A ball-type self-centering one-way valve assembly, including a pressure vessel, a sealed one-way valve assembly, a connector, an external pipe and a fastener. The pressure vessel is provided with a sealed one-way valve assembly, a connector is provided on the right side of the sealed one-way valve assembly, an external pipe is provided on the right side of the connector, and two sets of fasteners are symmetrically distributed on the top and bottom of the external pipe. The pressure vessel includes a container body, a flow channel, a rubber ring and a prefabricated threaded hole. The flow channel is provided inside the bottom end of the container body, a rubber ring is placed on the inner wall of the flow channel, a prefabricated threaded hole is provided inside the right end of the container body, and the sealed one-way valve assembly includes a cylinder , a sealing ring, a hollow screw, a first rubber sleeve and a ball. A sealing ring is placed on the inner wall of the cylinder. The inner wall of the cylinder is assembled with the outer thread of the hollow screw. A first rubber sleeve is fixedly provided inside the right end of the hollow screw. A ball is provided on the left side of the sealing ring. The connecting part includes a connecting tube, a clamping tube and a second rubber sleeve. A clamping tube is fixedly provided on the left end of the connecting tube. A second rubber sleeve is fixedly provided inside the connecting tube. The fastener includes a stud, a sleeve rod, a disc and a silicone ring. A sleeve rod is fixedly provided on the right end of the stud, a disc is fixedly provided on the outside of the sleeve rod, and a silicone ring is fixedly provided on the left end of the disc.

[0006] Preferably, the arc surface of the left end of the sealing ring is in contact with the arc surface of the inner wall of the left end of the cylinder, and the left end of the hollow screw is in contact with the right end of the sealing ring.

[0007] Preferably, a hexagonal inner groove is provided inside the right end of the hollow screw, a cylindrical inner groove is provided inside the left end of the hollow screw, and the hexagonal inner groove provided inside the hollow screw is connected to the cylindrical inner groove.

[0008] Preferably, the cylinder is slidably placed on the inner wall of the flow channel, and the arc surface at the left end of the cylinder is in contact with the arc surface at the right end of the rubber ring.

[0009] Preferably, the outer side of the connecting cylinder is threadedly assembled with the inner wall of the cylinder, and the clamping tube is placed in close contact with the inside of the first rubber sleeve.

[0010] Preferably, the outer side of the stud is assembled with the inner thread of the prefabricated threaded hole, and the left end of the silicone ring is in contact with the external pipe outlet.

[0011] Preferably, the left end of the external pipe outlet is pressed and in close contact with the second rubber sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the sealing ring is placed from right to left along the inside of the cylinder, and the L-shaped hexagonal wrench is inserted into the hexagonal inner groove of the hollow screw and rotated. The left end of the hollow screw is squeezed and fitted with the right end of the sealing ring, so that the arc surface of the left end of the sealing ring is fitted with the arc surface of the inner wall of the left end of the cylinder. The thread line set on the outside of the connecting cylinder is assembled with the thread of the inner wall of the cylinder. The clamping tube is fitted with the inside of the first rubber sleeve. The ball is put into the bottom position of the left side of the flow channel. The arc surface of the left end of the cylinder is fitted with the arc surface of the right end of the rubber ring. The left end of the external pipe outlet is manually fitted with the second rubber sleeve. Through the above arrangement, the main body of the structure adopts a modular assembly method, which is convenient for regular disassembly, maintenance and replacement of internal components. 2. In the present invention, the stud is manually assembled with the prefabricated threaded hole, and the left end of the silicone ring is in contact with the external pipe mouth piece, forming a tight extrusion arrangement between the second rubber sleeve and the external pipe, between the clamping tube and the first rubber sleeve, and between the rubber ring and the cylinder, forming a high-strength sealing and leak-proof installation structure. Through the above arrangement, the structural body facilitates high-strength sealing and leak-proof installation of the ball-type self-centering one-way valve assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the invention; Figure 2 Schematic diagram of the invented pressure vessel, sealed one-way valve assembly, connector, external pipe and fastener structure; Figure 3 The figure is a schematic diagram of the cross-sectional structure of the invented pressure vessel; Figure 4 For invention Figure 3 A schematic diagram of the enlarged structure at point A; Figure 5A schematic cross-sectional view of the inventive sealing one-way valve assembly; Figure 6 A schematic diagram of the cross-sectional structure of the invented connector; Figure 7 A schematic diagram of the cross-sectional structure of the external tube of the invention; Figure 8 A schematic diagram of the cross-sectional structure of the invented fastener; Figure 9 The present invention is a schematic diagram of the assembly structure of the pressure vessel and the external pipe; Figure 10 For invention Figure 9 A schematic diagram of the enlarged structure at point B; Figure 11 For invention Figure 9 Enlarged structural diagram at C.

[0014] In the figure: 1. Pressure vessel; 11. Container body; 12. Flow channel; 13. Rubber ring; 14. Prefabricated threaded hole; 2. Sealing one-way valve assembly; 21. Cylinder; 22. Sealing ring; 23. Hollow screw; 24. First rubber sleeve; 25. Ball; 3. Connector; 31. Connecting cylinder; 32. Clamping tube; 33. Second rubber sleeve; 4. External tube; 5. Fastener; 51. Stud; 52. Rod; 53. Disc; 54. Silicone ring. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0016] In the embodiments of the invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", and "outside" are based on the positions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations of the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Similarly, similar words such as "one", "an", or "the" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Similar words such as "include" or "comprises" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0017] Furthermore, in the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0018] See also Figure 1-11 , the present invention provides a technical solution: A ball-type self-centering one-way valve assembly, including a pressure vessel 1, a sealed one-way valve assembly 2, a connector 3, an external tube 4 and a fastener 5. The pressure vessel 1 is provided with a sealed one-way valve assembly 2, a connector 3 is provided on the right side of the sealed one-way valve assembly 2, an external tube 4 is provided on the right side of the connector 3, and two sets of fasteners 5 are symmetrically distributed on the top and bottom of the external tube 4. The pressure vessel 1 includes a container body 11, a flow channel 12, a rubber ring 13 and a prefabricated threaded hole 14. The flow channel 12 is provided inside the bottom end of the container body 11, and a rubber ring 13 is placed on the inner wall of the flow channel 12. The prefabricated threaded hole 14 is provided inside the right end of the container body 11. The sealed one-way valve assembly 2 includes a cylinder 21, a sealing ring 22, a hollow screw Thread 23, a first rubber sleeve 24 and a ball 25, a sealing ring 22 is placed on the inner wall of the cylinder 21, and the inner wall of the cylinder 21 is assembled with the outer thread of the hollow screw 23. The first rubber sleeve 24 is fixedly provided inside the right end of the hollow screw 23, and a ball 25 is provided on the left side of the sealing ring 22. The connecting piece 3 includes a connecting tube 31, a clamping tube 32 and a second rubber sleeve 33. The clamping tube 32 is fixedly provided on the left end of the connecting tube 31, and the second rubber sleeve 33 is fixedly provided inside the connecting tube 31. The fastener 5 includes a stud 51, a sleeve rod 52, a disc 53 and a silicone ring 54. The sleeve rod 52 is fixed on the right end of the stud 51, the disc 53 is fixed on the outside of the sleeve rod 52, and the silicone ring 54 is fixed on the left end of the disc 53.

[0019] The arc surface of the left end of the sealing ring 22 is in contact with the arc surface of the inner wall of the left end of the cylinder 21, and the left end of the hollow screw 23 is in contact with the right end of the sealing ring 22. Through the above arrangement, the internal components of the sealed one-way valve assembly 2 are convenient for assembly, installation or disassembly.

[0020] A hexagonal inner groove is set inside the right end of the hollow screw 23, and a cylindrical inner groove is set inside the left end of the hollow screw 23. The hexagonal inner groove set inside the hollow screw 23 is connected to the cylindrical inner groove. Through the above arrangement, the hollow screw 23 serves as the core guide component for fluid transportation.

[0021] The cylinder 21 is slidably placed on the inner wall of the flow channel 12, and the arc surface of the left end of the cylinder 21 is in contact with the arc surface of the right end of the rubber ring 13. Through the above arrangement, the contact between the arc surface of the left end of the cylinder 21 and the arc surface of the right end of the rubber ring 13 has a leak-proof sealing effect.

[0022] The outer side of the connecting tube 31 is threadedly assembled with the inner wall of the cylinder body 21, and the clamping tube 32 is placed in contact with the inside of the first rubber sleeve 24. Through the above arrangement, the connector 3 and the sealing one-way valve assembly 2 are easily assembled.

[0023] The outer side of the stud 51 is threadedly assembled with the inner side of the prefabricated threaded hole 14, and the left end of the silicone ring 54 is in contact with the pipe mouth of the external pipe 4. Through the above arrangement, it is convenient to assemble or disassemble the pressure vessel 1 and the fastener 5.

[0024] The left end of the pipe mouth of the external pipe 4 is pressed and fitted with the second rubber sleeve 33. Through the above arrangement, leak-proof assembly between the connecting piece 3 and the external pipe 4 is convenient.

[0025] Working process: The present invention provides a ball-type self-centering one-way valve assembly. Taking the pressure vessel 1 that requires a one-way sealed nitrogen spring product as an example, the structural body facilitates high-strength sealing and leak-proof installation of the ball-type self-centering one-way valve assembly, and the structural body adopts a modular assembly method, which is convenient for regular disassembly, maintenance and replacement of internal components.

[0026] First, assemble the sealing one-way valve assembly 2, and place the sealing ring 22 along the inside of the cylinder 21 from right to left. The inner wall of the cylinder 21 is provided with an internal threaded hole, and the outer side of the hollow screw 23 and the outer side of the connecting cylinder 31 are provided with threaded lines that are threadedly assembled with the above-mentioned internal threaded hole. A hexagonal inner groove is provided inside the right end of the hollow screw 23, and a cylindrical inner groove is provided inside the left end of the hollow screw 23. The hexagonal inner groove provided inside the hollow screw 23 is connected to the cylindrical inner groove. Insert the L-shaped hexagonal wrench into the hexagonal inner groove of the hollow screw 23 and rotate it until the left end of the hollow screw 23 is squeezed and fitted with the right end of the sealing ring 22, so that the arc surface of the left end of the sealing ring 22 is fitted and fitted with the arc surface of the inner wall of the left end of the cylinder 21. Then assemble the sealing one-way valve assembly 2 and the connecting piece 3. The threaded line arranged on the outside of the connecting cylinder 31 is threadedly assembled with the inner wall of the cylinder 21 until the clamping tube 32 is fitted into the inside of the first rubber sleeve 24, and the ball 25 is dropped into the bottom position on the left side of the flow channel 12. The cylinder 21 is slid onto the inner wall of the flow channel 12 until the arc surface of the left end of the cylinder 21 is fitted into contact with the arc surface of the right end of the rubber ring 13. The left end of the pipe mouth of the external pipe 4 is manually fitted into the second rubber sleeve 33, and the stud 51 is manually threadedly assembled with the prefabricated threaded hole 14. The left end of the silicone ring 54 is fitted into contact with the pipe mouth of the external pipe 4, forming a tight extrusion arrangement between the second rubber sleeve 33 and the external pipe 4, between the clamping tube 32 and the first rubber sleeve 24, and between the rubber ring 13 and the cylinder 21, forming a high-strength sealing and leak-proof installation structure.

[0027] The sealing one-way valve assembly 2 is installed inside the pressure vessel 1 of the nitrogen spring product. Due to the pressure difference between the internal pressure of the pressure vessel 1 and the external pressure, the ball 25 is tightly pressed against the sealing ring 22 in the direction of the pressure fluid flow, forming an effective sealing effect of the sealing one-way valve assembly 2. The greater the pressure difference, the better the sealing effect.

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

Claims

1. A ball-type self-centering one-way valve assembly, comprising a pressure vessel (1), a sealing one-way valve assembly (2), a connector (3), an external pipe (4), and a fastener (5), characterized in that: The pressure vessel (1) is provided with a sealing one-way valve assembly (2) inside, a connecting piece (3) is provided on the right side of the sealing one-way valve assembly (2), an external pipe (4) is provided on the right side of the connecting piece (3), and two sets of fasteners (5) are symmetrically distributed on the top and bottom of the external pipe (4). The pressure vessel (1) includes a container body (11), a flow channel (12), a rubber ring (13) and a prefabricated threaded hole (14). The flow channel (12) is provided inside the bottom end of the container body (11), a rubber ring (13) is placed on the inner wall of the flow channel (12), and a prefabricated threaded hole (14) is provided inside the right end of the container body (11). The sealing one-way valve assembly (2) includes a cylinder (21), a sealing ring (22), a hollow screw (23), a first rubber sleeve (24) and a ball (25). The cylinder (21) is provided with a sealing ring (22), a hollow screw (23), a first rubber sleeve (24) and a ball (25). A sealing ring (22) is placed on the wall, the inner wall of the cylinder (21) is threadedly assembled with the outer side of the hollow screw (23), a first rubber sleeve (24) is fixedly arranged inside the right end of the hollow screw (23), a ball (25) is arranged on the left side of the sealing ring (22), the connecting piece (3) includes a connecting cylinder (31), a clamping tube (32) and a second rubber sleeve (33), the left end of the connecting cylinder (31) is fixedly provided with a clamping tube (32), the inside of the connecting cylinder (31) is fixedly provided with a second rubber sleeve (33), the fastener (5) includes a stud (51), a sleeve rod (52), a disc (53) and a silicone ring (54), the right end of the stud (51) is fixedly provided with a sleeve rod (52), the outer side of the sleeve rod (52) is fixedly provided with a disc (53), and the left end of the disc (53) is fixedly provided with a silicone ring (54).

2. A ball-type self-centering one-way valve assembly according to claim 1, characterized in that: The arc surface of the left end of the sealing ring (22) is in contact with the arc surface of the inner wall of the left end of the cylinder (21), and the left end of the hollow screw (23) is in contact with the right end of the sealing ring (22).

3. A ball-type self-centering one-way valve assembly according to claim 1, characterized in that: A hexagonal inner groove is provided inside the right end of the hollow screw (23), a cylindrical inner groove is provided inside the left end of the hollow screw (23), and the hexagonal inner groove provided inside the hollow screw (23) is connected to the cylindrical inner groove.

4. The ball-type self-centering one-way valve assembly according to claim 1, characterized in that: The cylinder (21) is slidably placed on the inner wall of the flow channel (12), and the arc surface at the left end of the cylinder (21) is in contact with the arc surface at the right end of the rubber ring (13).

5. The ball-type self-centering one-way valve assembly according to claim 1, characterized in that: The outer side of the connecting tube (31) is threadably assembled with the inner wall of the cylinder (21), and the clamping tube (32) is placed in close contact with the inside of the first rubber sleeve (24).

6. The ball-type self-centering one-way valve assembly according to claim 1, characterized in that: The outer side of the stud (51) is threadedly assembled with the inner side of the prefabricated threaded hole (14), and the left end of the silicone ring (54) is in contact with the pipe mouth of the external pipe (4).

7. The ball-type self-centering one-way valve assembly according to claim 1, characterized in that: The left end of the external pipe (4) is pressed and in contact with the second rubber sleeve (33).

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