Anti-barb lock sleeve structure for gas hose

Abstract

The utility model discloses an anti-barb lock sleeve structure for a gas hose, which comprises a gas inner pipe, a metal protection pipe sleeved outside the gas inner pipe, and a T-shaped lock sleeve structure which is sleeved on the outer wall of the gas inner pipe in a sliding manner and can form positioning sleeve connection with the front end of the metal protection pipe, according to the utility model, the T-shaped lock sleeve structure is arranged on the metal protection tube as the armor layer, so that the T-shaped lock sleeve structure can be inserted into the metal protection tube and can block the burrs at the front end of the metal protection tube, and the damage of the burrs to installation personnel in the installation process is well prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting hose for gas technology field especially relates to a lock sleeve structure for gas hose anti barb. BACKGROUND

[0002] The outer part of the gas hose is equipped with an armor layer, the inner tube is in the armor layer, the connecting head connected with the gas stove is installed on the front part of the armor layer and the inner tube, the armor layer is mostly cut into sections and then assembled, therefore, the front end cutting part of the armor layer will inevitably have burrs, the burrs can easily scratch or pierce the inner tube when the gas hose joint product is assembled or produced. In addition, the inner tube for ventilation will be pierced or scratched and cause gas leakage when it is expanded due to the existence of the burrs. SUMMARY

[0003] The utility model is just in view of the above -mentioned problem, propose a lock sleeve structure for gas hose anti barb to solve the above -mentioned problem.

[0004] In order to achieve the above technical purpose, the utility model adopts a lock sleeve structure for gas hose anti barb, including gas inner tube and the metal protection pipe of sleeve joint in the outer gas inner tube, the outer metal protection pipe is screw thread structure, still including the lock sleeve structure of the outer wall of gas inner tube sliding sleeve joint, can and the front end of metal protection pipe form the positioning sleeve joint, for the burr of metal protection pipe front end is blocked.

[0005] As the preferred embodiment of the utility model, the lock sleeve structure is a T-shaped lock sleeve structure with a T-shaped axial section, which comprises: a sliding sleeve capable of being sleeved on the outer wall of the gas inner tube, the rear end of the sliding sleeve is provided with a positioning stopper connected in one piece with the sliding sleeve;

[0006] The size of the sliding sleeve is: just capable of being inserted into the inner wall of the metal protection pipe;

[0007] The diameter of the positioning stopper is: when the positioning stopper contacts the front end of the metal protection pipe, the positioning stopper can completely shield the front end of the metal protection pipe;

[0008] The rear part of the positioning stopper is provided with a positioning groove structure capable of sleeving part of the front end of the metal protection pipe when the positioning stopper contacts the front end of the metal protection pipe.

[0009] As a further preferred embodiment of the utility model, the positioning groove structure is a positive V-shaped positioning groove structure with a large opening and a small rear end, or an inverted V-shaped positioning groove structure with a small opening and a large rear end.

[0010] Further, the outer wall of the sliding sleeve is provided with a flexible barb structure inclined to the right side in a row.

[0011] As further preferred of the utility model, the T-shaped lock sleeve structure is of metal material, or plastic material, or silica gel material.

[0012] Further, the sliding sleeve is uniformly provided with a positioning spiral structure capable of being connected with the thread structure outside the metal protection pipe.

[0013] After the above structure is adopted, the utility model has the following advantages:

[0014] 1. The utility model sets T-shaped lock sleeve structure on the metal protection pipe as the armored layer, which prevents the burr of the armored layer from scratching or piercing the inner pipe, and prevents the inner pipe from being pierced or scratched due to the burr when the inner pipe is expanded, thereby preventing the safety accident of air leakage.

[0015] 1. The utility model sets the positioning groove structure capable of sleeving the front end of the metal protection pipe on the rear part of the positioning flake, and sets the positioning spiral structure capable of being connected with the thread structure outside the metal protection pipe on the sliding sleeve, so that the connection between the T-shaped lock sleeve structure and the metal protection pipe is more firm, and the tensile load of the connector during the tensile test is indirectly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 Fig. 2 is a schematic diagram of the structure of the T-shaped lock sleeve structure provided with the positive V-shaped positioning groove structure and the flexible barb structure;

[0018] Figure 3 Fig. 3 is a schematic diagram of the structure of the T-shaped lock sleeve structure provided with the inverted V-shaped positioning groove structure and the flexible barb structure;

[0019] Figure 4 Fig. 4 is a schematic diagram of the structure of the T-shaped lock sleeve structure provided with the positioning spiral structure;

[0020] Fig. 1 is a schematic diagram of the overall structure of the utility model; DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings and specific embodiments.

[0022] Combination Figure 1 It can be known that the lock sleeve structure for preventing the barb of the gas hose comprises a gas inner pipe 1 and a metal protection pipe 2 sleeved outside the gas inner pipe 1, and the metal protection pipe 2 is an armored layer, and the outer part of the metal protection pipe 2 is provided with a thread structure.

[0023] The utility model also includes a slide sleeve is connected in the gas inner tube 1 outer wall, can form the lock sleeve structure with the front end of metal protection pipe 2 positioning sleeve, for blocking the burr of metal protection pipe 2 front end.

[0024] In the utility model, preferred lock sleeve structure is: one axial section is T type T type lock sleeve structure 3, in the utility model, preferred T type lock sleeve structure 3 is metal material quality, or plastic material quality, or silica gel material quality.

[0025] In the utility model, the T type lock sleeve structure 3 includes: a slide sleeve 4 can be connected in the gas inner tube 1 outer wall, the rear end of slide sleeve 4 is equipped with a positioning baffle 5 and slide sleeve 4 integral connection;In the utility model, the size of slide sleeve 4 is: just can be inserted into the inner wall of metal protection pipe 2;And the diameter size of positioning baffle 5 is: when positioning baffle 5 and the front end of metal protection pipe 2 contact, positioning baffle 5 just can completely shield the front end of metal protection pipe 2.

[0026] The above structure sets T type lock sleeve structure 3 as the metal protection pipe of armored layer, very goodly prevents the burr of armored layer scratch or puncture inner tube, also eliminates the inner tube when meeting expansion, because the existence of burr leads to puncture or scratch inner tube to cause the safety accident of gas leakage.

[0027] Positioning baffle 5 rear part is equipped with the positioning groove structure when positioning baffle 5 and the front end of metal protection pipe 2 contact, can be partially sleeved into the front end of metal protection pipe 2.

[0028] Combination Figure 2 It can be known that, in the utility model, preferred positioning groove structure is the positive V type positioning groove structure 6 that is open big, rear end small.

[0029] Combination Figure 3 It can be known that, in the utility model, preferred positioning groove structure can also be the inverted V type positioning groove structure 7 that is open small, rear end big.

[0030] Setting positive V type positioning groove structure 6 or inverted V type positioning groove structure 7 can make the burr of metal protection pipe 2 front end be better wrapped, and also more facilitate the positioning of T type lock sleeve structure 3.

[0031] Combination Figure 2 And Figure 3 It can be known that, in the outer wall of slide sleeve 4, the flexible barb structure 8 that is right side is inclined, is in row. Setting flexible barb structure 8 is mainly to make the connection of T type lock sleeve structure 3 and metal protection pipe 2 more firm.

[0032] Combination Figure 4It can be known that the positioning spiral structure 9 capable of being connected with the thread structure outside the metal protection pipe 2 is uniformly arranged on the outer circle of the sliding sleeve 4. The structure can make the connection between the T-shaped lock sleeve structure and the metal protection pipe more firm, and indirectly assist the increase of the tensile load of the connector during the tensile test.

[0033] The above only describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A locking sleeve structure for preventing punctures in a gas hose, comprising an inner gas tube (1) and a metal protective tube (2) sleeved outside the inner gas tube (1), wherein the metal protective tube (2) has a threaded external structure, characterized in that, It also includes a locking sleeve structure that slides onto the outer wall of the gas inner pipe (1) and can form a positioning sleeve with the front end of the metal protective pipe (2) to block the burrs at the front end of the metal protective pipe (2).

2. The anti-burr locking sleeve structure for gas hoses as described in claim 1, characterized in that, The locking sleeve structure is a T-shaped locking sleeve structure (3) with a T-shaped axial cross section. The T-shaped locking sleeve structure (3) includes: a sliding sleeve (4) that can be sleeved on the outer wall of the gas inner pipe (1). The rear end of the sliding sleeve (4) is provided with a positioning baffle (5) that is integrally connected with the sliding sleeve (4). The sliding sleeve (4) is sized so that it can be inserted into the inner wall of the metal protective tube (2); The diameter of the positioning baffle (5) is such that when the positioning baffle (5) contacts the front end of the metal protective tube (2), the positioning baffle (5) can just completely cover the front end of the metal protective tube (2); The rear part of the positioning baffle (5) is provided with a positioning groove structure that can fit the front part of the metal protective tube (2) into the positioning baffle (5) when it contacts the front end of the metal protective tube (2).

3. The anti-burr locking sleeve structure for gas hoses as described in claim 2, characterized in that, The positioning groove structure is a positive V-shaped positioning groove structure with a large opening and a small rear end (6), or an inverted V-shaped positioning groove structure with a small opening and a large rear end (7).

4. The anti-burr locking sleeve structure for gas hoses as described in claim 2, characterized in that, The outer wall of the sliding sleeve (4) is provided with a flexible barb structure (8) that is inclined to the right and arranged in rows.

5. A locking sleeve structure for preventing punctures in gas hoses as described in claim 2, characterized in that, The T-shaped locking sleeve structure (3) is made of metal, plastic, or silicone.

6. The anti-burr locking sleeve structure for gas hoses as described in claim 2, characterized in that, The sliding sleeve (4) is uniformly provided with a positioning spiral structure (9) along the outer circle, which can be connected to the threaded structure on the outside of the metal protective tube (2).

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