One-way valve capable of changing direction
By designing an adjustable one-way valve, and using threaded connections and sealing surface structures, the problem of inconvenient switching of existing one-way valves has been solved, enabling reverse flow of the medium and convenient disassembly and assembly, thus reducing costs.
Patent Information
- Application Number
- CN202423027003.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing check valves require disassembly and re-wrapping of sealing tape during reversal, or cannot be disassembled at all, which prevents the medium from flowing in the reverse direction and makes disassembly and assembly inconvenient, increasing costs.
A one-way valve with reversible direction was designed. The valve body is threadedly connected to the locking sleeve, the valve core is detachable, and the reverse flow of the medium is achieved through the sealing surface and the return spring. The limit ring and the force ring facilitate disassembly and assembly.
It enables reverse flow of the medium, simplifies the reversal process, reduces manufacturing costs, and improves the ease of disassembly and assembly as well as the sealing effect.
Smart Images
Figure CN223524509U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to one -way valve technical field, especially in a one -way valve of direction of adjustable. BACKGROUND
[0002] The one -way valve in prior art needs to be reversed during use, since both ends of the one -way valve are sealed and connected, it needs to be re -wound and installed after disassembling each time, and the two ends of part of the one -way valve are directly connected with the pipeline, cannot be disassembled, and the reversing installation of the one -way valve cannot be realized, so that the medium cannot realize reverse flow. UTILITY MODEL CONTENTS
[0003] The utility model aims at overcoming the insufficient of prior art, and provides a one -way valve of direction of adjustable.
[0004] The utility model aims at overcoming the insufficient of prior art, and provides a one -way valve of direction of adjustable.
[0005] A one -way valve of direction of adjustable, including valve body, locking sleeve, sealing sleeve, valve core, reset spring and valve plug, the valve body is provided with limit valve cavity, one end in the limit valve cavity is provided with first sealing surface, one end on the valve core is provided with second sealing surface with first sealing surface sealed cooperation, the other end of valve core is connected with valve plug through reset spring, the end of valve plug is provided with third sealing surface with first sealing surface cooperation, the valve plug is matched with one end of sealing sleeve, one end in sealing sleeve is provided with fourth sealing surface with second sealing surface sealed cooperation, sealing sleeve is detachably arranged in the other end of limit valve cavity through locking sleeve, the valve plug is provided with through flow passage.
[0006] Further, the end of the valve core is provided with a first mounting groove matched with the reset spring, and the end of the valve plug is provided with a second mounting groove matched with the reset spring.
[0007] Further, a limiting ring is sealingly and fixedly arranged on the outer wall of the sealing sleeve, an annular groove is arranged on the inner wall of the limit valve cavity and sealingly cooperates with the limiting ring, the end of the limiting ring cooperates with the locking sleeve, and the outer wall of the sealing sleeve cooperates with the inner wall of the locking sleeve.
[0008] Further, the inner wall of the valve body cooperates with the outer wall of the locking sleeve in a threaded manner.
[0009] Further, the valve core comprises a blocking section and a sliding section, the second sealing surface is arranged on one end of the blocking section, the other end of the blocking section is fixedly connected with the sliding section, the outer wall of the blocking section is in clearance fit with the inner wall of the limiting valve cavity, the outer wall of the sliding section is in contact with the inner wall of the limiting valve cavity, the first discharge hole is arranged between the blocking section and the sliding section, and the second discharge hole is arranged on the sliding section and communicates with the first discharge hole.
[0010] Further, the cross sections of the blocking section and the sliding section are circular, the blocking section and the sliding section are coaxially arranged, and the diameter of the blocking section is smaller than that of the sliding section.
[0011] Further, the first sealing surface, the second sealing surface, the third sealing surface and the fourth sealing surface are all conical surfaces.
[0012] Further, the second sealing surface is provided with an annular sealing groove, and the annular sealing groove is provided with a sealing ring.
[0013] Further, the outer wall of the valve body is fixedly provided with a first stress ring, and the outer wall of the locking sleeve is fixedly provided with a second stress ring.
[0014] The beneficial effects of the utility model are:
[0015] 1) In the technology, the valve body and the locking sleeve are detachably connected, the valve core can be detached from the valve body for reversing, the medium can realize reverse flow after the valve core is reversed, the valve core is convenient to disassemble and assemble, quick to replace, simple in overall structure, and the manufacturing cost can be reduced.
[0016] 2) In the technology, the first stress ring and the second stress ring are arranged to facilitate the disassembly and assembly of the valve body and the locking sleeve. DRAWINGS
[0017] Figure 1 It is a three-dimensional structure diagram of the one-way valve;
[0018] Figure 2 It is an internal connection structure diagram of the one-way valve in forward flow;
[0019] Figure 3 It is an internal connection structure diagram of the one-way valve in reverse flow;
[0020] Figure 4 It is an internal structure diagram of the valve body;
[0021] In the figure, 1-valve body, 2-locking sleeve, 3-sealing sleeve, 4-valve core, 5-reset spring, 6-valve plug, 7-limit valve cavity, 8-first sealing surface, 9-second sealing surface, 10-third sealing surface, 11-fourth sealing surface, 12-flow passage, 13-first mounting groove, 14-second mounting groove, 15-limit ring, 16-annular groove, 17-first discharge hole, 18-second discharge hole, 19-annular sealing groove, 20-annular sealing ring, 21-first force ring, 22-second force ring. DETAILED DESCRIPTION
[0022] The technical scheme of the utility model will be described below in connection with the embodiments, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0023] Reference Figures 1-4 The utility model provides a technical scheme:
[0024] A one-way valve with direction-adjustable, comprising a valve body 1, locking sleeve 2, sealing sleeve 3, valve core 4, reset spring 5 and valve plug 6, the valve body 1 is provided with the limit valve cavity 7, the limit valve cavity 7 is provided with the first sealing surface 8 in one end, the valve core 4 is provided with the second sealing surface 9 of sealing cooperation with the first sealing surface 8 on one end, the other end of valve core 4 is connected with valve plug 6 through reset spring 5, the end of valve plug 6 is provided with the third sealing surface 10 of cooperation with the first sealing surface 8, the valve plug 6 is matched with one end of sealing sleeve 3, one end of sealing sleeve 3 is provided with the fourth sealing surface 11 of sealing cooperation with the second sealing surface 9, sealing sleeve 3 is detachably arranged in the other end of limit valve cavity 7 through locking sleeve 2, the inner wall of valve body 1 is threadedly matched with the outer wall of locking sleeve 2. Among them, in order to facilitate disassembly, the threaded connection between valve body 1 and locking sleeve 2 is used, sealing sleeve 3 not only seals between valve body 1 and locking sleeve 2, but also limits valve core 4 or valve plug 6, when flowing in the positive direction (such as Figure 2 indicated), the valve core 4 contacts and seals with the sealing sleeve 3, and the valve plug 6 cooperates with the first sealing surface 8 on the valve body 1; when flowing in the reverse direction (such as Figure 3 indicated), the valve plug 6 contacts with the sealing sleeve 3, the valve core 4 seals with the first sealing surface 8 on the valve body 1, and the reset spring 5 receives pressure to pop open the valve core 4 and the valve plug 6 to both sides.
[0025] In some embodiments, a first mounting groove 13 is arranged in the end of the valve core 4 and cooperates with the reset spring 5, and a second mounting groove 14 is arranged in the end of the valve plug 6 and cooperates with the reset spring 5. In order to make the valve core 4 and the valve plug 6 bear force uniformly, the valve core 4, the reset spring 5 and the valve plug 6 are coaxially arranged, and the first mounting groove 13 and the second mounting groove 14 are arranged to prevent the reset spring 5 from sliding between the valve core 4 and the valve plug 6, so that the valve core 4 leaks due to uneven force.
[0026] In some embodiments, a limiting ring 15 is sealingly and fixedly arranged on the outer wall of the sealing sleeve 3, an annular groove 16 that sealingly cooperates with the limiting ring 15 is arranged on the inner wall of the limiting valve cavity 7, the end of the limiting ring 15 cooperates with the locking sleeve 2, and the outer wall of the sealing sleeve 3 cooperates with the inner wall of the locking sleeve 2. The limiting ring 15 has two functions, one is to seal between the valve body 1 and the locking sleeve 2, and the other is to limit the valve core 4 or the valve plug 6 through the sealing sleeve 3 to prevent the sealing sleeve 3 from sliding in the valve body 1.
[0027] In some embodiments, the valve core 4 includes a plugging section and a sliding section, the second sealing surface 9 is arranged on one end of the plugging section, the other end of the plugging section is fixedly connected with the sliding section, the outer wall of the plugging section clearance cooperates with the inner wall of the limiting valve cavity 7, the outer wall of the sliding section contacts the inner wall of the limiting valve cavity 7, the first discharge hole 17 is arranged between the plugging section and the sliding section, and the second discharge hole 18 that penetrates and communicates with the first discharge hole 17 is arranged on the sliding section. The cross sections of the plugging section and the sliding section are circular, the plugging section and the sliding section are coaxially arranged, and the diameter of the plugging section is smaller than the diameter of the sliding section. Medium pushes the valve core 4 to compress the reset spring 5, then the medium enters between the outer wall of the plugging section and the inner wall of the limiting valve cavity 7, then enters the first discharge hole 17, then is discharged into the limiting valve cavity 7 through the second discharge hole 18, and finally is discharged from the through-flow passage 12 on the valve plug 6, so the plugging section clearance cooperates with the inner wall of the limiting valve cavity 7, and the sliding section slides on the inner wall of the limiting valve cavity 7.
[0028] In some embodiments, the first sealing surface 8, the second sealing surface 9, the third sealing surface 10 and the fourth sealing surface 11 are all conical surfaces. When the medium flows in the positive direction, that is, the medium enters from the side of the locking sleeve 2, the second sealing surface 9 cooperates with the fourth sealing surface 11, and the first sealing surface 8 cooperates with the third sealing surface 10. When the medium flows in the reverse direction, that is, the medium is discharged from the side of the locking sleeve 2, the second sealing surface 9 cooperates with the first sealing surface 8, and the third sealing surface 10 cooperates with the fourth sealing surface 11. In order to better realize the sealing cooperation, the first sealing surface 8, the second sealing surface 9, the third sealing surface 10 and the fourth sealing surface 11 are all conical surfaces and are coaxially arranged.
[0029] In some embodiments, the second sealing surface 9 is provided with an annular sealing groove 19, and the annular sealing groove 19 is provided with a sealing ring 20. The annular sealing groove 19 facilitates the installation of the sealing ring 20, and the sealing ring 20 is a rubber sealing ring in the prior art. Under the action of the sealing ring 20, the valve core 4 is sealed with the first sealing surface 8 or the fourth sealing surface 11.
[0030] In some embodiments, the outer wall of the valve body 1 is fixedly provided with a first force ring 21, and the outer wall of the locking sleeve 2 is fixedly provided with a second force ring 22. The cross sections of the first force ring 21 and the second force ring 22 are regular hexagons, which facilitates the action of a dismounting tool on the first force ring 21 and the second force ring 22, and facilitates the fixing or separation of the valve body 1 and the locking sleeve 2.
[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "bottom", "one end", "top", "middle", "the other end", "coaxial", "one side", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0032] In the present application, unless otherwise explicitly specified and limited, the terms "provision", "installation", "connection", "fixation", "hinge" and the like should be understood broadly, for example, they can be fixedly connected, or detachably connected, or integrated; they can be mechanically connected, or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium; they can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.
[0033] The above is only the preferred embodiment of the present application, and it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein by the above teaching or related technology or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.
Claims
1. A reversible check valve characterized by: The utility model provides a valve, including valve body (1), locking sleeve (2), sealing sleeve (3), valve core (4), reset spring (5) and valve plug (6), be provided with limit valve cavity (7) in valve body (1), be provided with first sealing surface (8) in one end of limit valve cavity (7), be provided with second sealing surface (9) of sealing cooperation with first sealing surface (8) on one end of valve core (4), the other end of valve core (4) is connected with valve plug (6) through reset spring (5), be provided with third sealing surface (10) of cooperation with first sealing surface (8) on the end of valve plug (6), valve plug (6) is cooperated with one end of sealing sleeve (3), be provided with fourth sealing surface (11) of sealing cooperation with second sealing surface (9) in one end of sealing sleeve (3), sealing sleeve (3) is detachably arranged in the other end of limit valve cavity (7) through locking sleeve (2), be provided with through flow passage (12) in valve plug (6).
2. A reversible check valve according to claim 1, wherein: First installation groove (13) is arranged in the end of valve core (4) and cooperated with reset spring (5), second installation groove (14) is arranged in the end of valve plug (6) and cooperated with reset spring (5).
3. A reversible check valve according to claim 1 or 2, characterised in that: Limit ring (15) is fixedly arranged on the outer wall of sealing sleeve (3), annular groove (16) is arranged on the inner wall of limit valve cavity (7) and cooperated with limit ring (15), the end of limit ring (15) is cooperated with locking sleeve (2), and the outer wall of sealing sleeve (3) is cooperated with the inner wall of locking sleeve (2).
4. A reversible check valve according to claim 1 or 2, wherein: The inner wall of valve body (1) is cooperated with the outer wall of locking sleeve (2) by screw thread.
5. A reversible check valve according to claim 1 or 2, wherein: Valve core (4) includes plugging section and sliding section, second sealing surface (9) is arranged on one end of plugging section, the other end of plugging section is fixedly connected with sliding section, the outer wall of plugging section is cooperated with the inner wall of limit valve cavity (7) with clearance, the outer wall of sliding section is in contact with the inner wall of limit valve cavity (7), first discharge hole (17) is arranged between plugging section and sliding section, second discharge hole (18) is arranged on sliding section and is communicated with first discharge hole (17).
6. A reversible check valve according to claim 5, wherein: The cross section of plugging section and sliding section is circular, plugging section and sliding section are coaxially arranged, and the diameter of plugging section is less than the diameter of sliding section.
7. A reversible check valve according to claim 6, wherein: First sealing surface (8), second sealing surface (9), third sealing surface (10) and fourth sealing surface (11) are all conical surfaces.
8. A reversible check valve according to claim 1 or 2, wherein: Annular sealing groove (19) is arranged on second sealing surface (9), annular sealing ring (20) is arranged in annular sealing groove (19).
9. A reversible check valve according to claim 1 or 2, wherein: First force ring (21) is fixedly arranged on the outer wall of valve body (1), second force ring (22) is fixedly arranged on the outer wall of locking sleeve (2).