One-way valve for aluminum pipe

Abstract

The utility model relates to the technical field of one-way valves, in particular to a one-way valve for an aluminum pipe, which comprises a cylindrical valve body, a valve seat is arranged in the valve body and fixedly arranged along the inner wall of the valve body, a valve core is movably arranged in the valve seat, the outer diameter of the valve core is smaller than the inner diameter of the valve seat, and the outer diameter of the valve core is larger than the inner diameter of the valve seat. A limiting device used for blocking the valve element is arranged at the bottom of the valve seat, a baffle ring used for blocking the valve element is arranged at the top of the valve seat, it is guaranteed that the valve element is always kept at the correct position in the sliding process, the situation that the valve element deviates from the center due to shaking or impact is avoided, the valve element is prevented from inclining or rotating in the valve seat, the stability of the valve element is improved, and the service life of the valve element is prolonged. And the service lives of the valve core and the valve seat are prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to one -way valve technical field, concretely relates to a one -way valve for aluminium pipe. 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, due to the fluid flow rate in one -way valve interior is faster, in actual use, the valve core will shake and vibrate in the interior, in some air conditioning processing of existing, will use aluminium pipe as the valve body of one -way valve, the valve core will directly wear aluminium pipe in frequent multiple impact, can lead to aluminium pipe breakage, the valve core rotates, inclines even jams in the interior, thereby lead to one -way valve service life shortening, increased maintenance difficulty, therefore this technical scheme is improved. SUMMARY

[0003] The utility model discloses a one -way valve for aluminium pipe, which overcomes the short service life of the valve core in the aluminium pipe in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model discloses a one -way valve for aluminium pipe, which specifically adopts the following technical scheme: a one -way valve for aluminium pipe, comprising a valve body, the valve body is cylindrical, a valve seat is arranged inside the valve body, the valve seat is fixedly arranged along the inner wall of the valve body, a valve core is movably arranged inside the valve seat, the outer diameter of the valve core is smaller than the inner diameter of the valve seat, a limiting device for blocking the valve core is arranged at the bottom of the valve seat, and a stop ring for blocking the valve core is arranged at the top of the valve seat.

[0005] Further, the valve seat is fixed on the inner wall of the valve body through a clamping ring, the top of the valve core is conical, and a through hole matched with the valve core is arranged at the middle position of the stop ring.

[0006] Further, the valve seat is cylindrical as a whole, the valve core is slidably arranged inside the valve seat, at least one limiting strip is arranged on the inner wall of the valve seat, a limiting groove for clamping the limiting strip is arranged on the side wall of the valve core, and the limiting groove is arranged along the length direction of the valve core.

[0007] Further, the limiting device comprises a blocking pin arranged at the bottom of the valve seat, and the blocking pin is vertically arranged at the bottom of the valve seat.

[0008] Further, the lower part of the valve core is cylindrical, the diameter of the lower part of the valve core is greater than that of the through hole at the middle position of the stop ring, and a chamfer is arranged at the bottom of the valve core.

[0009] The utility model discloses an advantageous effect of an embodiment is: the valve seat uses the material of relatively hard texture to manufacture, makes the action range of valve core always be in the inside of valve seat, greatly reduces the shock resistance of aluminium pipe valve body, prolongs the life, guarantees the use effect, and the valve seat is fixed firmly on the inner wall of valve body through the clamping ring and welding, guarantees the stability of valve seat, and the design of blocking pin can effectively limit the maximum downlink position of valve core in the valve seat, prevents the valve core from damaging valve seat because of excessive impact, and the side wall of valve core is provided with the limit groove of limit strip clamping, ensures that valve core always keeps correct position in the sliding process, prevents from deviating from the center because of shaking or impact, prevents the valve core from happening in the valve seat Inclination or rotation, not only improve the stability of valve core, but also prolong the service life of valve core and valve seat. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is whole structure schematic diagram of the utility model;

[0011] Fig. 2 It is sectional structure schematic diagram of the utility model;

[0012] Fig. 3 It is valve seat side view structure schematic diagram of the utility model;

[0013] In the drawing: 1, valve body;2, valve seat;201, blocking ring;202, blocking pin;203, limit strip;3, valve core. DETAILED DESCRIPTION

[0014] The preferred embodiments of the utility model will be 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.

[0015] Referring to Figs. 1 to 3 The utility model discloses an embodiment discloses a kind of one-way valve structure for aluminium pipe, mainly by valve body 1, valve seat 2, valve core 3, limiting device etc. Component is composed, wherein valve body 1 is made of aluminium pipe, reduce production cost, meet the needs of air conditioner use simultaneously, to adapt to the pipe connection demand in air conditioning system, valve body 1 inner wall is fixedly provided with valve seat 2, valve seat 2 is also cylindrical, ensure that fluid can keep smooth flow passage when passing, valve seat 2 uses the material of relatively hard texture to manufacture, such as steel, aluminium alloy etc., improve impact resistance, make the action range of valve core 3 always be in the inside of valve seat 2, greatly reduce the shock resistance of aluminium pipe valve body 1, prolong the life, guarantee use effect, and valve seat 2 is fixed firmly on the inner wall of valve body 1 through the clamping ring and welding, guarantee the stability of valve seat 2.

[0016] The valve core 3 is movably arranged in the valve seat 2, the outer diameter of the valve core 3 is smaller than the inner diameter of the valve seat 2, so that the valve core 3 can freely slide in the valve seat 2, and the fluid flow can be effectively controlled, the top of the valve core 3 is designed as a taper, which helps the fluid flow more smoothly, reduces the impact of the fluid on the valve core 3, the lower part of the valve core 3 is cylindrical and has a diameter larger than that of the through hole in the middle of the blocking ring 201, so that the valve core 3 can effectively block the fluid in the closed state, and the bottom of the valve core 3 is provided with a chamfer, which facilitates the smooth entry of the valve core 3 into the valve seat 2 when it is opened.

[0017] The bottom of the valve seat 2 is provided with a limiting device for blocking the valve core 3, specifically a blocking pin 202 vertically arranged at the bottom of the valve seat 2, the design of the blocking pin 202 can effectively limit the maximum downward position of the valve core 3 in the valve seat 2, preventing the valve core 3 from being damaged due to excessive impact on the valve seat 2, and the top of the valve seat 2 is provided with a blocking ring 201, the middle of the blocking ring 201 is provided with a through hole matched with the valve core 3, the diameter of the through hole is slightly larger than the diameter of the cylindrical lower part of the valve core 3, so that the valve core 3 can smoothly pass in the opened state, through the cooperation of the valve core 3 and the blocking ring 201, the one-way flow of the fluid is realized, at least one limiting strip 203 is arranged on the inner wall of the valve seat 2, and a limiting groove for clamping the limiting strip 203 is arranged on the side wall of the valve core 3, the limiting groove is arranged along the length direction of the valve core 3, so that the valve core 3 can always keep the correct position during sliding, preventing deviation from the center due to shaking or impact, preventing the valve core 3 from tilting or rotating in the valve seat 2, not only improving the stability of the valve core 3, but also prolonging the service life of the valve core 3 and the valve seat 2, reducing the difficulty and cost of maintenance.

[0018] It should be noted that, in the description of the present application, 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 only 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, therefore it cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] In addition, it should be noted that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] The term "comprising" or any other similar word is intended to encompass the inclusion of one or more steps, features, or elements but not to the exclusion of any other steps, features, or elements. The term "comprising" therefore indicates that the inclusion of one or more steps, features, or elements is not a complete list of all possible steps, features, or elements.

[0021] The technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the present application, and the technical schemes after these changes or replacements will all fall within the protection scope of the present application.

Claims

1. A one-way valve for an aluminum pipe comprising a valve body (1), characterized in that: The valve body (1) is cylindrical, the inside of the valve body (1) is provided with a valve seat (2), the valve seat (2) is fixedly arranged along the inner wall of the valve body (1), the inside of the valve seat (2) is movably provided with a valve core (3), the outer diameter of the valve core (3) is smaller than the inner diameter of the valve seat (2), the bottom of the valve seat (2) is provided with a limiting device for blocking the valve core (3), and the top of the valve seat (2) is provided with a blocking ring (201) for blocking the valve core (3).

2. The one-way valve for an aluminum pipe according to claim 1, characterized by: The valve seat (2) is fixed on the inner wall of the valve body (1) through a clamping ring, the top of the valve core (3) is conical, and the middle position of the blocking ring (201) is provided with a through hole matched with the valve core (3).

3. The one-way valve for an aluminum pipe according to claim 1, characterized by: The valve seat (2) is cylindrical as a whole, the valve core (3) is slidably arranged in the valve seat (2), at least one limiting strip (203) is arranged on the inner wall of the valve seat (2), and a limiting groove for clamping the limiting strip (203) is arranged on the side wall of the valve core (3), the limiting groove is arranged along the length direction of the valve core (3).

4. The one-way valve for an aluminum pipe according to claim 1, characterized by: The limiting device comprises a blocking pin (202) arranged at the bottom of the valve seat (2), and the blocking pin (202) is vertically arranged at the bottom of the valve seat (2).

5. The one-way valve for an aluminum pipe according to claim 2, characterized by: The lower part of the valve core (3) is cylindrical, the diameter of the lower part of the valve core (3) is greater than the diameter of the through hole in the middle position of the blocking ring (201), and the bottom of the valve core (3) is provided with a chamfer.

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