Novel quick coupler of fuel gas corrugated pipe

Abstract

The utility model belongs to the technical field of fuel gas corrugated pipe joints, and particularly relates to a novel quick coupler of a fuel gas corrugated pipe, which comprises a corrugated pipe, a nut and a snap ring. A nut groove is formed in one end of the nut; one end of the corrugated pipe extends into the inner wall of the nut; the clamping ring is sequentially provided with a sealing stop ring, a clamping position inner protrusion and a fool-proof groove from one side to the other side, a corrugated pipe extrusion cavity is formed between the sealing stop ring and the clamping position inner protrusion, and the clamping position inner protrusion is clamped in a corrugated groove in the outer wall of the corrugated pipe. One side port, close to the fool-proof groove, of the clamping ring abuts against the bottom of the nut groove. According to the gas corrugated pipe connector, the nut and the clamping ring are arranged, the corrugated pipe is clamped in the nut through the clamping ring, the clamping ring abuts against the groove bottom of the nut, connection between the nut and the corrugated pipe is achieved, a groove does not need to be formed in the inner wall of the nut, the structure of the nut is simplified, and the sealing performance between the gas corrugated pipe and the connector is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas bellows joints, in particular to a novel quick-install joint for a gas bellows. Background Art

[0002] The bellows is a tubular structure that can be folded, expanded, and bent. The bellows are widely used, among which the bellows can be used in gas pipelines.

[0003] In order to achieve the connection between the gas bellows and other tubular structures, a joint is usually required for docking. At present, the joints used for gas bellows are realized by nuts, which are connected by thread and by snap-on locking. When the threaded connection is adopted, the threads are prone to loosening, causing gas leakage and other problems; when the snap-on locking method is adopted, in order to achieve the snap-on locking function, a slot is opened on the inner wall of the nut for snap-on locking. This method has high requirements for the processing of the nut, and the corresponding production cost is increased. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems existing in the background technology. To this end, a new quick-release connector for a gas bellows is provided, which simplifies the structure of the nut and adopts a snap-on locking method to ensure the sealing between the gas bellows and the connector.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A novel quick-connect connector for a gas bellows, comprising a bellows, a nut and a clamping ring;

[0007] A nut groove is formed at one end of the nut;

[0008] One end of the bellows extends into the inner wall of the nut;

[0009] The clamping ring is provided with a sealing stop ring, a locking inner protrusion and an anti-mistake groove in sequence from one side to the other side, a bellows extrusion cavity is formed between the sealing stop ring and the locking inner protrusion, and the locking inner protrusion is locked in the corrugated groove of the outer wall of the bellows;

[0010] A side end of the clamping ring close to the fool-proof groove abuts against the bottom of the nut groove.

[0011] The following is a technical solution further defined by the present utility model: a sealing ring is provided on the inner wall of the nut, and the sealing ring is in contact with the sealing stop ring.

[0012] The following is a technical solution further defined by the present utility model, wherein the sealing ring abuts and presses the bellows tightly in the bellows extrusion cavity.

[0013] The following is a technical solution further defined by the present utility model, in which the groove surface of the anti-foolproof groove is matched with the outer wall curved surface of the corrugated pipe.

[0014] The following is a technical solution further defined by the present utility model: the inner diameter of the nut groove bottom is smaller than the outer diameter of the retaining ring, the outer diameter of the retaining ring is equal to the inner diameter of the nut wall, and the outer diameter of the sealing ring is equal to the inner diameter of the nut wall.

[0015] Compared with the prior art, the utility model has the following technical effects:

[0016] The utility model provides a nut and a clamping ring, the bellows is clamped in the nut by the clamping ring, and the clamping ring is abutted against the bottom of the nut groove, so that the connection between the nut and the bellows is realized, and there is no need to open a groove on the inner wall of the nut, which simplifies the structure of the nut and ensures the sealing between the gas bellows and the joint.

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of the nut in the utility model;

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the clamping ring in the utility model;

[0022] Figure 4 It is a side structural schematic diagram of the clamping ring in the utility model.

[0023] Figure numerals: 1, nut; 1a, nut groove; 2, sealing ring; 3, retaining ring; 3a, sealing stop ring; 3b, inner convex of the retaining position; 3c, anti-mistake groove; 3d, bellows extrusion cavity; 4, bellows. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] like Figure 1-4 As shown, a new quick-connect connector for a gas bellows is provided, comprising a bellows 4, a nut 1, a clamping ring 3 and a sealing ring 2.

[0028] like Figure 2 As shown, a nut 1 groove is provided at the right end of the nut 1 , wherein the nut 1 groove has a groove bottom, and the inner diameter of the groove bottom is smaller than the inner diameter of the nut 1 .

[0029] like Figure 3 and 4 As shown, the clamping ring 3 is provided with a sealing ring 3a, a locking inner protrusion 3b and an anti-fool groove 3c in sequence from one side to the other side, and an extrusion cavity 3d of the bellows 4 is formed between the sealing ring 3a and the locking inner protrusion 3b.

[0030] One end of the bellows 4 extends into the inner wall of the nut 1, and the inner protrusion 3b is stuck in the corrugated groove of the outer wall of the bellows 4, and the groove surface of the anti-idiot groove 3c is adapted to the outer wall curved surface of the bellows 4; the side port of the snap ring 3 close to the anti-idiot groove 3c abuts against the bottom of the groove of the nut 1; a sealing ring 2 is provided on the inner wall of the nut 1, and the sealing ring 2 abuts against the sealing stop ring 3a; the sealing ring 2 abuts and presses the bellows 4 into the extrusion cavity 3d of the bellows 4.

[0031] The inner diameter of the groove bottom of the nut 1 is smaller than the outer diameter of the snap ring 3 , the outer diameter of the snap ring 3 is equal to the inner diameter of the nut 1 , and the outer diameter of the sealing ring 2 is equal to the inner diameter of the nut 1 .

[0032] The working process of this embodiment will be further described below:

[0033] The bellows 4 passes through the nut 1, the snap ring 3 is installed on the bellows 4, the bellows 4 is gently pulled so that the snap ring 3 enters the nut 1 and falls on the bottom of the groove of the nut 1, and then the sealing ring 2 is placed in the nut 1.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the above disclosed methods and technical contents without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the utility model without departing from the content of the technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. A new quick-release connector for gas bellows. It is characterized in that It comprises a bellows (4), a nut (1) and a snap ring (3); A nut groove (1a) is formed at one end of the nut (1); One end of the bellows (4) extends into the inner wall of the nut (1); The clamping ring (3) is provided with a sealing stop ring (3a), a locking inner protrusion (3b) and an anti-mistake groove (3c) in sequence from one side to the other side, a bellows extrusion cavity (3d) is formed between the sealing stop ring (3a) and the locking inner protrusion (3b), and the locking inner protrusion (3b) is locked in the outer wall corrugated groove of the bellows (4); A side end of the snap ring (3) close to the foolproof groove (3c) abuts against the bottom of the nut groove (1a).

2. A novel quick-release connector for a gas bellows as claimed in claim 1, It is characterized in that The inner wall of the nut (1) is provided with a sealing ring (2), and the sealing ring (2) and the sealing stop ring (3a) are in contact with each other.

3. A novel quick-release connector for a gas bellows as claimed in claim 2, It is characterized in that The sealing ring (2) abuts against and presses the bellows (4) tightly into the bellows extrusion cavity (3d).

4. A novel quick-release connector for a gas bellows as claimed in claim 2, It is characterized in that The groove surface of the fool-proof groove (3c) is matched with the outer wall curved surface of the corrugated tube (4).

5. A novel quick-release connector for a gas bellows as claimed in claim 2, It is characterized in that The inner diameter of the bottom of the nut groove (1a) is smaller than the outer diameter of the snap ring (3), the outer diameter of the snap ring (3) is equal to the inner diameter of the nut (1), and the outer diameter of the sealing ring (2) is equal to the inner diameter of the nut (1).

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