Anti-collision one-way valve
By introducing multi-stage anti-collision ribs and H-type limit seat structure into the check valve, the wear and noise problems caused by valve core impact are solved, extending the service life of the check valve and improving sealing performance and reliability.
Patent Information
- Application Number
- CN202520034407.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing check valves suffer from wear, increased noise, and shortened service life due to frequent impacts between the valve core and the limit device during long-term use. They are also prone to jamming and are difficult to maintain.
Design an anti-collision check valve, which adopts a multi-stage anti-collision rib structure and an H-type limit seat. The multi-stage anti-collision rib disperses the impact force and reduces the severity, while the conical sealing end reduces wear. Combined with the retaining ring buffer, it limits the movement range of the valve core.
It effectively extends the service life of the check valve, reduces noise, improves sealing performance and reliability, and reduces maintenance costs.
Smart Images
Figure CN223563539U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to one -way valve technical field, concretely relates to a crashproof one -way valve. BACKGROUND
[0002] One -way valve is the valve that the throttling section or throttling length is changed to control fluid flow, the throttling structure in air conditioning system generally adopts throttling block as valve core structure, the orientation of fluid is realized through the limiting of internal valve core, because the fluid flow rate in one -way valve is fast, the valve core will shake and vibrate in the inside in actual use, the valve core moves back and forth and strikes the limiting device in front in use, the valve core and limiting device will wear and tear in frequent multiple impact, lead to the change of valve core stroke, and along with the increase of wear and tear, the activity space of valve core increases, when using for a long time, it can produce bigger noise, the valve core rotates, inclines even jams in the inside, thereby lead to the service life of one -way valve shortening, increase the maintenance difficulty. SUMMARY
[0003] The utility model discloses a kind of crashproof one -way valves to overcome the deficiency that service life is influenced because of impact in prior art when long time is used.
[0004] The utility model discloses an embodiment to realize the above-mentioned purpose, specifically adopt the following technical scheme: a crashproof one -way valve, including valve body, the valve body is cylindrical, the inside of the valve body is provided with valve seat, the valve seat is fixedly arranged along the inner wall of valve body, the valve seat one side movably provided with valve core, the outer diameter of the valve core is less than the inner diameter of valve body, the side wall between the valve core and valve body is provided with limiting device that prevents the rotation of valve core, the abutting surface of the valve seat and valve core is provided with multistage anti -collision ridge.
[0005] Further, the valve seat is an annular block arranged in the valve body, the multistage anti -collision ridge is arranged at the end of the valve seat, and the multistage anti -collision ridge includes a first convex ridge and a second convex ridge.
[0006] Further, the first convex ridge is arranged on the outside of the valve body, and the abutting surface of the second convex ridge and the valve core is an inclined surface.
[0007] Further, the inner diameter of the first convex ridge is greater than the inner diameter of the second convex ridge, and the sealing end of the valve core is arranged in a conical shape.
[0008] Further, the limiting device includes an H-shaped limiting seat arranged at the tail of the valve core, and the tail of the valve core is provided with a groove for clamping the limiting seat.
[0009] Further, the bottom of the limiting seat is provided with a retaining ring.
[0010] The beneficial effects of the utility model embodiment are that: the abutting surface of the valve seat and the valve core is provided with multistage anti-collision beads, wherein the multistage anti-collision beads include primary convex beads and secondary convex beads, the primary convex beads are arranged at the outer side of the valve seat, and the secondary convex beads are arranged inside the primary convex beads, the secondary convex beads form an inclined surface with the abutting surface of the valve core, not only increase the contact area between the valve core and the valve seat, disperse the impact force, but also can guide the valve core to gradually decelerate when impacting, reduce the intensity of the impact, the arrangement of the secondary convex beads can effectively improve the anti-impact effect, greatly prolong the service life of the primary convex beads, and keep good sealing effect, and when the valve core is opened, the tapered sealing end can smoothly pass through the multistage anti-collision beads, reduce the abrasion, and prolong the service life of the check valve. BRIEF DESCRIPTION OF DRAWINGS
[0011] Fig. 1 It is the whole structure schematic diagram of the utility model;
[0012] Fig. 2 It is the sectional structure schematic diagram of the utility model;
[0013] Fig. 3 It is the valve core structure schematic diagram of the utility model;
[0014] In the drawing: 1, valve body; 2, valve seat; 201, primary convex bead; 202, secondary convex bead; 3, valve core; 4, limiting seat; 5, baffle ring. DETAILED DESCRIPTION
[0015] The preferred embodiments of the utility model are described below with reference to the drawings, and those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.
[0016] Referring to Figs. 1 to 3 The utility model embodiment discloses a check valve of anti-collision, mainly including valve body, valve seat, valve core and limiting device and other key components, the valve body is designed as cylindrical, its internal space is used to accommodate valve seat, valve core and other components, the valve seat is fixedly arranged along the inner wall of the valve body, ensures the close cooperation between the valve seat and the valve body, prevents fluid leakage.
[0017] The valve seat is designed as an annular block arranged in the valve body, which is stable in structure and can effectively support the valve core. On one side of the valve seat, the valve core is movably arranged, the outer diameter of the valve core is less than the inner diameter of the valve body, so that the valve core can move smoothly in the valve body, at the same time, a special limiting device is arranged between the side wall of the valve core and the valve body, which is used to block the rotation of the valve core during movement, and ensures the stable operation of the valve core.
[0018] In order to effectively reduce the impact wear between the valve core and the valve seat, a plurality of anti-collision beads are arranged on the abutting surface of the valve seat and the valve core, wherein the plurality of anti-collision beads include a first convex bead and a second convex bead, the first convex bead is arranged on the outer side of the valve seat (i.e. the side close to the valve core), and the second convex bead is arranged inside the first convex bead, and the abutting surface of the second convex bead forms an inclined surface, which not only increases the contact area between the valve core and the valve seat and disperses the impact force, but also guides the valve core to gradually slow down when impacting, thereby reducing the severity of the impact. The inner diameter of the first convex bead is larger than the inner diameter of the second convex bead, forming a stepped structure. Meanwhile, the sealing end of the valve core is designed to be conical, and the slope of the conical surface is smaller than the slope of the contact surface formed by the first convex bead and the second convex bead. This design makes the first convex bead abut against the valve core first, and the sharp side of the first valve core is more easily worn out. When sealing, the valve core moves to the left, the conical surface of the valve core first contacts the first convex bead, the first convex bead deforms slightly, allowing the valve core to move a certain distance to the left, and then abuts against the second convex bead. Since the abutting surface of the second convex bead is arranged as an inclined surface, it is not easy to deform, has good anti-impact effect, and is not easy to deform, so that the valve core can tightly fit the valve seat when closing. The arrangement of the second convex bead can effectively improve the anti-impact effect, greatly prolong the service life of the first convex bead, and maintain good sealing effect. When the valve core is opened, the conical sealing end can smoothly pass through the plurality of anti-collision beads, reducing wear and prolonging the service life of the check valve.
[0019] An H-shaped limiting seat is arranged at the tail of the valve core, and is clamped through the groove arranged at the tail of the valve core. The limiting seat not only has a simple structure and is easy to install, but also can effectively limit the movement range of the valve core, prevent the valve core from rotating, tilting or being stuck during impact, and further enhance the stability of the limiting seat. A retaining ring is arranged at the bottom of the limiting seat, which can tightly fit the inner wall of the valve body to prevent the limiting seat from shaking or falling off in the valve body. At the same time, the retaining ring can also play a certain buffering role, further reducing the impact force between the valve core and the limiting device, effectively solving the problems of wear, noise and valve core sticking during use of the existing check valve. The check valve has the advantages of simple structure, easy installation and maintenance, and can significantly improve the service life and reliability of the check valve, and reduce maintenance costs.
[0020] It should be noted that in the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0021] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0022] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.
[0023] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical scheme after the changes or replacements will fall within the protection scope of the utility model.
Claims
1. A check valve of the anti-collision type comprising a valve body, characterized in that: The valve body is cylindrical, an inner portion of the valve body is provided with a valve seat, the valve seat is fixedly arranged along an inner wall of the valve body, a valve core is movably arranged on one side of the valve seat, an outer diameter of the valve core is smaller than an inner diameter of the valve body, a limiting device for preventing rotation of the valve core is arranged between a side wall of the valve core and the valve body, and a plurality of stages of anti-collision beads are arranged on an abutting surface of the valve seat and the valve core.
2. The anti-collision check valve of claim 1, wherein: The valve seat is an annular block arranged in the inner portion of the valve body, the plurality of stages of anti-collision beads are arranged on end portions of the valve seat, and the plurality of stages of anti-collision beads comprise a first-stage convex bead and a second-stage convex bead.
3. The anti-collision check valve of claim 2, wherein: The first-stage convex bead is arranged on an outer side of the valve body, and the abutting surface of the second-stage convex bead and the valve core is a bevel surface.
4. The anti-collision check valve of claim 2, wherein: An inner diameter of the first-stage convex bead is greater than an inner diameter of the second-stage convex bead, and a sealing end of the valve core is arranged in a conical shape.
5. The dead-end check valve of claim 1, wherein: The limiting device comprises an H-shaped limiting seat arranged on a tail portion of the valve core, and the tail portion of the valve core is provided with a groove for clamping the limiting seat.
6. The anti-collision check valve of claim 5, wherein: A stop ring is arranged on a bottom portion of the limiting seat.