Spray gun head and gas tank connecting structure

Abstract

The utility model relates to a connecting structure of a spray gun head and a gas tank, which belongs to the technical field of connecting pieces of gas containers, and comprises a gas tank connecting ring with a limiting block, a deformation ring and a spray gun head connecting seat, the spray gun head connecting seat is sleeved in the gas tank connecting ring, the deformation ring is positioned between the spray gun head connecting seat and the gas tank connecting ring, and the deformation ring is connected with the gas tank connecting ring. The deformation ring is arranged on the gas tank connecting ring in a clamped mode, an ejection part is arranged on the spray gun head connecting base, a protruding part used in cooperation with the ejection part is arranged on the inner side of the deformation ring, and when the spray gun head connecting base rotates, the ejection part can push the protruding part of the deformation ring to protrude outwards to be clamped in a groove of a gas tank. The utility model aims to provide a connecting structure which is reasonable and simple in structure, can reduce the production cost and can ensure that a gas tank and a flame gun can be stably connected.

Description

Technical Field

[0001] The utility model belongs to the technical field of connecting pieces for gas containers, in particular to a connecting structure between a spray gun head and a gas tank. Background Art

[0002] The flamethrower is an emerging outdoor product and a type of outdoor cooking tool. It is an ignition and heating tool derived from the existing butane gas tank.

[0003] The prior art discloses a utility model application with application number 202021866159.9, and the patent name is a new type of card-type gas tank connecting cover and its card-type gas tank connecting structure, which includes a through hole, several clips 1 and several clips 2 formed on the connecting cover; the clips 1 and 2 are located on the inner side of the connecting cover and at the lower part of the through hole, and the clip 1 is shorter than the clip 2, and the clip 1 is closer to the inner side of the connecting cover; the outer side of the clip 2 is formed with a protrusion 2.

[0004] Although the above patents solve some technical problems, they contain more materials and have relatively high production costs. Therefore, how to reduce production costs while ensuring that the gas tank and the flamethrower can be stably connected is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The purpose of the utility model is to provide a connection structure which is reasonable and simple in structure, can reduce production costs and can ensure that the gas tank and the flamethrower can be stably connected.

[0006] The purpose of this utility model is achieved in this way:

[0007] A spray gun head and gas tank connection structure, including a gas tank connecting ring with a limiting block, a deformation ring and a spray gun head connecting seat, the spray gun head connecting seat is arranged in the gas tank connecting ring, the deformation ring is located between the spray gun head connecting seat and the gas tank connecting ring, and the deformation ring is clamped on the gas tank connecting ring, the spray gun head connecting seat is provided with an ejection part, and the inner side of the deformation ring is provided with a protrusion used in conjunction with the ejection part, and when the spray gun head connecting seat rotates, the ejection part can push the protrusion of the deformation ring to protrude outward and be clamped in the groove of the gas tank.

[0008] In the above-mentioned connection structure between the spray gun head and the gas tank, a limiting portion is provided in the gas tank connection ring for use in conjunction with the ejection portion of the spray gun head connection seat.

[0009] In the above-mentioned connection structure between the spray gun head and the gas tank, there are at least two ejection parts, which are evenly distributed on the spray gun head connection seat.

[0010] In the above-mentioned connection structure between the spray gun head and the gas tank, the protrusion of the deformation ring includes a first protrusion and a second protrusion, and the width h of the first protrusion is smaller than the width H of the second protrusion.

[0011] In the above-mentioned connection structure between the spray gun head and the gas tank, a transition fillet is provided between the first protrusion and the second protrusion.

[0012] In the above-mentioned connection structure between the spray gun head and the gas tank, a limiting protrusion is provided on the deformable ring, and a limiting groove for accommodating the limiting protrusion is provided on the gas tank connection ring.

[0013] In the above-mentioned connection structure between the spray gun head and the gas tank, there are two limiting protrusions, which are evenly distributed on the deformation ring.

[0014] In the above-mentioned connection structure between the spray gun head and the gas tank, the deformation ring is made of plastic material.

[0015] In the above-mentioned connection structure between the spray gun head and the gas tank, a through hole for connecting the spray gun head is provided on the ejection portion.

[0016] In the above-mentioned connection structure between the spray gun head and the gas tank, the ejection portion is provided with a rounded corner.

[0017] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0018] The utility model is formed by a gas tank connecting ring, a deformable ring and a spray gun head connecting seat, and the gas tank connecting ring cooperates with the gas tank through a limit block. The spray gun connecting seat is controlled to rotate by rotating the spray gun. When the spray gun connecting seat rotates, its ejection part pushes the protrusion of the deformable ring to bulge outward and deform, and part of the deformable ring is stuck in the groove of the gas tank, thus completing the connection between the spray gun and the gas tank. Compared with the connection cover of the comparative document, the deformable ring of the present application uses less material and can also ensure that the two can be stably connected, thereby reducing production costs. The overall structure is relatively simple and the installation is also convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the flamethrower and gas tank;

[0020] Figure 2 It is an exploded view of the utility model, the flamethrower and the gas tank;

[0021] Figure 3 yes Figure 2 A magnified view of point A;

[0022] Figure 4 This is one of the structural diagrams of the present utility model;

[0023] Figure 5 This is the second structural diagram of the present utility model;

[0024] Figure 6 This is one of the exploded views of the present utility model;

[0025] Figure 7 This is the second exploded view of the present utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the utility model after the deformation ring is deformed;

[0027] Figure 9 yes Figure 8 Another structural diagram of .

[0028] The meaning of the numbers in the figure:

[0029] 1. Gas tank connecting ring; 11. Limiting part; 2. Deformation ring; 21. Protrusion; 211. First protrusion; 212. Second protrusion; 22. Limiting protrusion; 23. Limiting groove; 3. Spray gun head connecting seat; 31. Ejection part; 311. Rounded corner; 4. Limiting block; 400. Gas tank; 500. Spray gun head; 600. Groove. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with specific embodiments:

[0031] like Figures 1-9 As shown: A spray gun head and gas tank connection structure, including a gas tank connection ring 1 with a limiting block 4, a deformable ring 2 and a spray gun head connection seat 3, the spray gun head connection seat 3 is sleeved in the gas tank connection ring 1, the deformable ring 2 is located between the spray gun head connection seat 3 and the gas tank connection ring 1, and the deformable ring 2 is clamped on the gas tank connection ring 1, the spray gun head connection seat 3 is provided with an ejection portion 31, the inner side of the deformable ring 2 is provided with a protrusion 21 used in conjunction with the ejection portion 31, and the ejection portion 31 is rotated when the spray gun head connection seat 3 is rotated. 31 can push the protrusion 21 of the deformable ring 2 to protrude outward and be stuck in the groove 600 of the gas tank 400. It is formed by the gas tank connecting ring 1, the deformable ring 2 and the spray gun head connecting seat 3, and the gas tank connecting ring 1 cooperates with the notch on the gas tank 400 through the limit block 4. The spray gun connecting seat 3 is driven to rotate by rotating the spray gun head 500. The spray gun connecting seat 3 rotates, and its ejector part 31 pushes the protrusion of the deformable ring 2 to protrude outward, and the protruding part of the deformable ring 2 is stuck in the groove of the gas tank, completing the connection between the spray gun and the gas tank 400.

[0032] In the above-mentioned spray gun head and gas tank connection structure, a limiting portion 11 is provided in the gas tank connecting ring 1 for use with the ejection portion 31 of the spray gun head connecting seat 3. Specifically, the limiting portion 11 is designed to prevent the spray gun head connecting seat 3 from rotating too much, and after the spray gun head connecting seat 3 rotates and is blocked by the limiting portion, it is just stuck on the protrusion.

[0033] In the above-mentioned spray gun head and gas tank connection structure, there are at least two ejection parts 31, which are symmetrically distributed on the spray gun head connection seat 3. Specifically, the present invention preferably has two ejection parts 31, which can save materials for the deformation ring and the spray gun head connection seat, and can also ensure that the spray gun head and the gas tank can be stably connected.

[0034] In the above-mentioned connection structure between the spray gun head and the gas tank, the protrusion 21 of the deformable ring 2 includes a first protrusion 211 and a second protrusion 212. The width h of the first protrusion 211 is smaller than the width H of the second protrusion 212. Specifically, the ejection part of the spray gun head connecting seat is first inserted into the first protrusion and finally into the second protrusion during the rotation process. This is to enable the deformable ring to gradually be inserted into the groove of the gas tank. Simply put, when the ejection part is located at the first protrusion, part of the deformable ring enters the groove of the gas tank, which plays a role in assisting subsequent actions and can prevent the deformable ring from detaching from the groove of the gas tank.

[0035] In the above-mentioned spray gun head and gas tank connection structure, a transition fillet 213 is provided between the first protrusion 211 and the second protrusion 212. Specifically, this is to ensure smooth sliding of the ejection portion. In some embodiments, the transition fillet 213 is replaced by a guide slope or arc surface.

[0036] In the above-mentioned spray gun head and gas tank connection structure, a limiting protrusion 22 is provided on the deformable ring 2, and a limiting groove 23 for accommodating the limiting protrusion 22 is provided on the gas tank connecting ring 1. There are two limiting protrusions 22, and they are evenly distributed on the deformable ring 2. Specifically, this is to avoid the deformation ring from moving during deformation, and further ensure that the utility model can be used normally.

[0037] In the above-mentioned connection structure between the spray gun head and the gas tank, the deformable ring 2 is made of plastic material. Specifically, this is to make the deformable ring elastic and save production costs.

[0038] In the above-mentioned connection structure between the spray gun head and the gas tank, a through hole for connecting the spray gun head is provided on the ejection portion 31. Specifically, this is to facilitate the connection of the spray gun head. The bolt passes through the through hole and is connected to the spray gun head.

[0039] In the above-mentioned connection structure between the spray gun head and the gas tank, a rounded corner 311 is provided on the ejection portion 31. Specifically, this is to facilitate the rotation of the spray gun head connection seat, and also to facilitate the ejection portion to slide in the deformation ring, so as to facilitate the ejection of the protrusion of the deformation ring without interfering with the interior of the deformation ring.

[0040] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A connection structure between a spray gun head and a gas tank, characterized in that: The invention comprises a gas tank connecting ring (1) with a limit block (4), a deformable ring (2) and a spray gun head connecting seat (3); the spray gun head connecting seat (3) is sleeved in the gas tank connecting ring (1); the deformable ring (2) is located between the spray gun head connecting seat (3) and the gas tank connecting ring (1); and the deformable ring (2) is clamped on the gas tank connecting ring (1); an ejection portion (31) is provided on the spray gun head connecting seat (3); a protrusion (21) used in conjunction with the ejection portion (31) is provided on the inner side of the deformable ring (2); when the spray gun head connecting seat (3) rotates, the ejection portion (31) can push the protrusion (21) of the deformable ring (2) to protrude outward and be clamped in the groove of the gas tank.

2. The spray gun head and gas tank connection structure according to claim 1, characterized in that: A limiting portion (11) is provided in the gas tank connecting ring (1) and is used in conjunction with the ejection portion (31) of the spray gun head connecting seat (3).

3. The spray gun head and gas tank connection structure according to claim 2, characterized in that: There are at least two ejection parts (31) evenly distributed on the spray gun head connecting seat (3).

4. The spray gun head and gas tank connection structure according to claim 3, characterized in that: The protrusion (21) of the deformation ring (2) comprises a first protrusion (211) and a second protrusion (212), wherein a width h of the first protrusion (211) is smaller than a width H of the second protrusion (212).

5. The spray gun head and gas tank connection structure according to claim 4, characterized in that: A transition fillet (213) is provided between the first protrusion (211) and the second protrusion (212).

6. The spray gun head and gas tank connection structure according to claim 1, 2, 3, 4 or 5, characterized in that: A limiting protrusion (22) is provided on the deformation ring (2), and a limiting groove (23) for accommodating the limiting protrusion (22) is provided on the gas tank connecting ring (1).

7. The spray gun head and gas tank connection structure according to claim 6, characterized in that: There are two limiting protrusions (22), which are evenly distributed on the deformation ring (2).

8. The spray gun head and gas tank connection structure according to claim 6, characterized in that: The deformation ring (2) is made of plastic material.

9. The spray gun head and gas tank connection structure according to claim 3, characterized in that: The ejection portion (31) is provided with a through hole for connecting a spray gun head.

10. The spray gun head and gas tank connection structure according to claim 6, characterized in that: The ejection portion (31) is provided with a rounded corner (311).

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