One-way valve

Abstract

The utility model discloses a one-way valve which comprises a valve body, a pipeline connector is arranged in the valve body, a sealing mechanism is arranged in the valve body and comprises a circular ring, a plurality of connecting rods are connected in the valve wall of the valve body in a sliding mode, an annular groove is formed in the inner side wall of the valve body, and the connecting rods are connected with the circular ring in a sliding mode. And a sealing ring is fixed to the left side of the interior of the annular groove, an extrusion groove is formed in the right side of the sealing ring, an extrusion ring is arranged in the extrusion groove, a moving ring is fixed to the right side of the extrusion ring, and the two ends of the connecting rod are fixedly connected with the circular ring and the moving ring correspondingly. According to the one-way valve, the sealing mechanism is arranged, the pipeline connector is inserted, the pipeline connector extrudes the circular ring, the circular ring drives the connecting rod, the movable ring and the extrusion ring to move, the extrusion ring is inserted into the extrusion groove, the sealing ring expands outwards, the sealing ring is tightly attached to the outer side wall of the pipeline connector, and therefore the sealing performance is further improved.

Description

Technical Field

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

[0002] A check valve is a valve that allows fluid to flow only through the inlet, but prevents the medium from flowing back through the outlet; it is commonly known as a one-way valve. Check valves are also called non-return valves or non-circulating valves. They are used in hydraulic systems to prevent oil from flowing in the opposite direction, or in pneumatic systems to prevent compressed air from flowing in the opposite direction.

[0003] When connecting existing check valves to pipe fittings, the outer wall of the pipe fitting is fitted with several sealing rings to seal it. However, such a seal is not tight and is prone to leakage. In addition, the connection is made by thread, which requires multiple turns and is cumbersome. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a one-way valve that solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a one-way valve, comprising a valve body, a pipe connector inside the valve body, a sealing mechanism inside the valve body, the sealing mechanism including a ring, multiple connecting rods slidably connected inside the valve wall of the valve body, an annular groove on the inner side wall of the valve body, a sealing ring fixed on the left side inside the annular groove, a compression groove on the right side of the sealing ring, a compression ring inside the compression groove, a movable ring fixed on the right side of the compression ring, two ends of the connecting rods being fixedly connected to the ring and the movable ring respectively, and a rubber ring inside the valve body located on the left side of the pipe connector.

[0006] Preferably, a tension spring is sleeved on the outer side of the connecting rod, and the two ends of the tension spring are fixedly connected to the inner right side of the groove and the right side of the moving ring, respectively.

[0007] Preferably, the pipe connector has a connecting mechanism inside, the connecting mechanism includes multiple locking blocks, the outer wall of the pipe connector has multiple receiving holes, a compression spring is fixed inside the receiving hole, and the other end of the compression spring is fixedly connected to the locking block.

[0008] Preferably, a rotating ring is rotatably connected to the outer side wall of the pipe connector, and an annular opening is provided on the inner side wall of the rotating ring. A pull rope is fixed to one end of the locking block near the compression spring, and the other end of the pull rope is fixedly connected to the annular opening. Multiple ratchet grooves are provided on the inner side wall of the valve body.

[0009] Preferably, the pull rope is a steel wire rope.

[0010] Preferably, the outer wall of the rotating ring is provided with anti-slip texture. Beneficial effects

[0011] This invention provides a one-way valve. Compared with the prior art, it has the following advantages:

[0012] 1. This one-way valve, through the setting of a sealing mechanism, inserts into the pipe connector. The pipe connector squeezes the ring, and the ring moves along with the connecting rod, the moving ring and the squeezing ring. The squeezing ring inserts into the squeezing groove, causing the sealing ring to expand outward. The sealing ring and the outer wall of the pipe connector fit tightly together, thus further improving the sealing performance.

[0013] 2. This one-way valve, through the setting of a connection mechanism, allows the pipe connector to be inserted into the valve body, and then the pipe connector to be pushed. The pipe connector squeezes the rubber ring, causing the rubber ring to deform. At the same time, the locking block engages with the ratchet groove, fixing the pipe connector. This connection is simple and convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a cross-sectional structural schematic diagram of the valve body in this utility model;

[0017] Figure 4 This utility model Figure 3 Schematic diagram of the structure at point A;

[0018] Figure 5 This is a cross-sectional view of the moving ring, sealing ring, and extrusion ring in this utility model.

[0019] Figure 6 This is a cross-sectional view of the pipe connector in this utility model.

[0020] In the diagram: 1. Pipe connector; 2. Valve body; 3. Rattle groove; 4. Sealing mechanism; 401. Connecting rod; 402. Ring; 403. Tension spring; 404. Moving ring; 405. Sealing ring; 406. Compression ring; 407. Compression groove; 5. Rubber ring; 6. Connecting mechanism; 601. Annular opening; 602. Compression spring; 603. Pull rope; 604. Rotary ring; 605. Receiving hole; 607. Locking block; 7. Annular groove. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-6 This utility model provides a technical solution: a one-way valve, including a valve body 2, a pipe connector 1 inside the valve body 2, a sealing mechanism 4 inside the valve body 2, the sealing mechanism 4 including a ring 402, multiple connecting rods 401 slidably connected inside the valve wall of the valve body 2, an annular groove 7 is formed on the inner side wall of the valve body 2, a sealing ring 405 is fixed on the left side inside the annular groove 7, a compression groove 407 is formed on the right side of the sealing ring 405, a compression ring 406 is formed inside the compression groove 407, a moving ring 404 is fixed on the right side of the compression ring 406, the two ends of the connecting rods 401 are fixedly connected to the ring 402 and the moving ring 404 respectively, a rubber ring 5 is provided inside the valve body 2 on the left side of the pipe connector 1, which can seal the outer side wall of the pipe connector 1, a tension spring 403 is sleeved on the outside of the connecting rods 401, the two ends of the tension spring 403 are fixedly connected to the right side inside the groove 7 and the right side of the moving ring 404 respectively, which can restore the compression ring 406 to its original shape.

[0023] Furthermore, the pipe connector 1 has a connecting mechanism 6 inside, which includes multiple locking blocks 607. The outer wall of the pipe connector 1 has multiple receiving holes 605. A compression spring 602 is fixed inside the receiving hole 605. The other end of the compression spring 602 is fixedly connected to the locking block 607. A rotating ring 604 is rotatably connected to the outer wall of the pipe connector 1. The inner wall of the rotating ring 604 has an annular opening 601. A pull rope 603 is fixed to one end of the locking block 607 near the compression spring 602. The other end of the pull rope 603 is fixedly connected to the annular opening 601. The inner wall of the valve body 2 has multiple ratchet grooves 3, which facilitates the connection of the pipe connector 1. The pull rope 603 is a steel wire rope, which is durable and not easy to break. The outer wall of the rotating ring 604 has anti-slip texture, which facilitates the rotation of the rotating ring 604.

[0024] During operation, pipe connector 1 is inserted into valve body 2. Pressing pipe connector 1 compresses ring 402, which in turn moves connecting rod 401, moving ring 404, and compression ring 406. Compression ring 406 inserts into compression groove 407, compressing sealing ring 405 and causing it to expand outward. Sealing ring 405 and outer wall of pipe connector 1 fit tightly together, further improving sealing. At the same time, pipe connector 1 compresses rubber ring 5, deforming it. Locking block 607 engages with ratchet groove 3, fixing pipe connector 1 and completing the connection between pipe connector 1 and valve body 2. This connection is simple and convenient.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[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 one-way valve comprising a valve body (2), characterised in that: The inside of the valve body (2) is provided with a pipeline connector (1), the inside of the valve body (2) is provided with a sealing mechanism (4), the sealing mechanism (4) comprises a circular ring (402), a plurality of connecting rods (401) are slidably connected inside the valve wall of the valve body (2), an annular groove (7) is formed in the inner side wall of the valve body (2), a sealing ring (405) is fixed to the inside left side of the annular groove (7), an extrusion groove (407) is formed in the right side of the sealing ring (405), an extrusion ring (406) is arranged in the inside of the extrusion groove (407), a moving ring (404) is fixed to the right side of the extrusion ring (406), both ends of the connecting rod (401) are fixedly connected with the circular ring (402) and the moving ring (404), and a rubber ring (5) is arranged in the inside of the valve body (2) and located to the left of the pipeline connector (1).

2. A check valve according to claim 1, characterized in that: A stretching spring (403) is arranged on the outside of the connecting rod (401), and both ends of the stretching spring (403) are fixedly connected with the inside right side of the groove (7) and the right side of the moving ring (404).

3. A check valve according to claim 2, wherein: The inside of the pipeline connector (1) is provided with a connecting mechanism (6), the connecting mechanism (6) comprises a plurality of clamping blocks (607), a plurality of receiving holes (605) are formed in the outer side wall of the pipeline connector (1), a compression spring (602) is fixed in the inside of each receiving hole (605), and the other end of the compression spring (602) is fixedly connected with the clamping block (607).

4. A check valve according to claim 3, wherein: A rotating ring (604) is rotatably connected to the outer side wall of the pipeline connector (1), an annular opening (601) is formed in the inner side wall of the rotating ring (604), one end of the clamping block (607) close to the compression spring (602) is fixedly connected with a pull rope (603), and the other end of the pull rope (603) is fixedly connected with the annular opening (601), a plurality of ratchet grooves (3) are formed in the inner side wall of the valve body (2).

5. A check valve according to claim 4, wherein: The pull rope (603) is a steel wire rope.

6. A check valve according to claim 5, wherein: The outer side wall of the rotating ring (604) is provided with anti-skid lines.

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