CN219473642U - Handle of liquefied gas spray gun - Google Patents

Handle of liquefied gas spray gun Download PDF

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Publication number
CN219473642U
CN219473642U CN202321768019.1U CN202321768019U CN219473642U CN 219473642 U CN219473642 U CN 219473642U CN 202321768019 U CN202321768019 U CN 202321768019U CN 219473642 U CN219473642 U CN 219473642U
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CN
China
Prior art keywords
handle
liquefied gas
spray gun
axis
gas spray
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CN202321768019.1U
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Chinese (zh)
Inventor
迪迪埃·吉尔贝特
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Wujiangji Baixun Heating Tools Co ltd
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Wujiangji Baixun Heating Tools Co ltd
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Priority to CN202321768019.1U priority Critical patent/CN219473642U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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Abstract

The utility model discloses a handle of a liquefied gas spray gun. The handle comprises a handle shell and a metal connecting pipe inserted in the handle shell, and the handle further comprises: the connector comprises a rotating part inserted into the handle shell and a connecting part used for connecting a liquefied gas supply hose, the rotating part extends along a first axis, the connecting part extends along a second axis, and an included angle of more than 0 and less than 180 degrees is formed between the first axis and the second axis; the outer connecting sleeve is arranged in the handle shell and provided with a distal end part and a proximal end part which are opposite to each other, the proximal end part of the metal connecting tube is fixedly connected with the distal end part of the outer connecting sleeve, and the rotating part is rotatably connected with the proximal end part of the outer connecting sleeve around a first axis; wherein, the lumen of the metal connecting pipe is communicated with the inner cavity of the joint. The handle of the liquefied gas spray gun reduces the limitation of the liquefied gas source and the liquefied gas supply hose on the use angle of the handle, and reduces the torsion of the liquefied gas supply hose.

Description

Handle of liquefied gas spray gun
Technical Field
The utility model belongs to the technical field of liquefied gas spray guns, and particularly relates to a handle of a liquefied gas spray gun.
Background
The liquefied spray gun is a heating and welding tool using liquefied gas as fuel, and the working principle is that the gas is sprayed out of a muzzle by pressure regulation and flow conversion, and the gas is contacted with air at a nozzle and ignited, so that high Wen Zhuxing flame is formed to perform the work of heating and welding and the like.
A liquefied gas spray gun as disclosed in patent CN209744375U, which comprises a spray head, a gun rod, a regulating valve body and a handle. The two ends of the regulating valve body are respectively communicated with the gun rod and the handle. The other end of the gun rod is connected with a spray head. One end of the handle, which is away from the regulating valve body, is provided with a socket which is connected with the liquefied gas tank through a leather hose. Such a liquefied gas spray gun has the following drawbacks when in use: when the flaming operation is carried out, according to different flaming positions, the angle of the handle is required to be changed so that the nozzle can be opposite to the part needing flaming, in the process, a pipeline connected with the liquefied gas tank is easy to twist, and the pipeline is easy to damage and even causes leakage risk; in addition, because the position of the liquefied gas tank is mostly fixed, the connecting joint of the pipeline and the handle are coaxially arranged, the pipeline and the liquefied gas tank have larger limit on the movement (especially angle adjustment) of the handle, and the use is more inconvenient.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an improved handle of a liquefied gas spray gun, which reduces the limitation of a liquefied gas source and a liquefied gas supply hose thereof on the use angle of the handle and reduces the torsion of the liquefied gas supply hose.
The utility model adopts the following technical scheme:
the handle of liquefied gas spray gun includes handle shell and inserts and locate the metal connecting pipe in the handle shell, the handle still includes:
the connector comprises a rotating part inserted into the handle shell and a connecting part used for connecting a liquefied gas supply hose, wherein the rotating part extends along a first axis, the connecting part extends along a second axis, and an included angle of more than 0 and less than 180 degrees is formed between the first axis and the second axis;
an outer connecting sleeve disposed within the handle housing and having opposite distal and proximal ends, the proximal end of the metallic connecting tube being fixedly connected to the distal end of the outer connecting sleeve, the rotating portion being rotatably connected to the proximal end of the outer connecting sleeve about the first axis;
wherein, the lumen of the metal connecting pipe is communicated with the inner cavity of the joint.
Preferably, the rotating part and the connecting part body are provided, and the rotating part is inserted into the connecting part and is screwed.
More preferably, the included angle is 30 degrees or more and 60 degrees or less.
In a specific and preferred embodiment, the included angle is equal to 45 degrees.
Preferably, the connection comprises a tubular body extending along the second axis and a connection flange extending outwardly from an outer surface of the tubular body.
More preferably, the number of the connection flanges is plural and is arranged at intervals along the length direction of the tubular body.
Preferably, at least one of the connection flanges has a proximal slope that is farther from the connection portion and a distal slope that is closer to the connection portion, the proximal slope having an angle with the length direction of the tubular body that is smaller than the angle between the distal slope and the length direction of the tubular body.
Preferably, the tubular body has a proximal end portion with a truncated cone shape.
More preferably, the handle further comprises a hollow shaft arranged in the outer connecting sleeve, one end of the hollow shaft is inserted into the proximal end portion of the metal connecting pipe and sealed, the other end of the hollow shaft is inserted into the rotating portion in a relatively rotatable manner and sealed, and the hollow shaft is arranged in a hollow manner and communicates the lumen of the metal connecting pipe with the inner cavity of the joint.
Preferably, the proximal end portion of the metal connecting tube is fixedly inserted into the distal end portion of the outer connecting tube, the proximal end portion of the metal connecting tube and the distal end portion of the outer connecting tube are connected through threads, and the proximal end portion and the distal end portion of the outer connecting tube are sealed through a sealing adhesive layer.
More preferably, the handle further comprises a limit clamp spring for limiting the movement of the rotating part relative to the outer connecting sleeve along the first axis.
Preferably, the limiting clamp spring is arranged on the outer connecting sleeve and provided with a limiting section positioned in the outer connecting sleeve, a circle of groove is formed in the outer surface of the rotating part along the circumferential direction of the rotating part, and the limiting section is clamped in the groove.
More preferably, the limit clamp spring comprises two arc sections, the two arc sections are connected through the two limit sections, the limit sections linearly extend, and one of the arc sections is provided with a breaking notch to allow the limit clamp spring to deform.
Compared with the prior art, the utility model has the following advantages:
the handle of the liquefied gas spray gun provided by the utility model has the advantages that the connecting part of the liquefied gas supply pipeline connected with the liquefied gas source, the handle shell and the metal connecting pipe are not coaxial, the connecting part can also rotate relative to the handle shell, in the process of changing the angle of the handle, the connecting part can not rotate along with the handle shell or at least has smaller rotating amplitude, the torsion degree of the liquefied gas supply hose is reduced, the torsion of the liquefied gas supply hose is even completely avoided, the service life of the gas supply hose is further prolonged, the leakage risk is reduced, meanwhile, the limitation of the liquefied gas supply hose on the use angle of the handle is smaller, and the handle is allowed to move in a large range relative to the liquefied gas source, so that the handle is more convenient to use.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a handle of a liquefied gas injection lance in accordance with an embodiment of the present utility model;
FIG. 2 is a side view of the handle of a liquefied gas injection lance in accordance with an embodiment of the present utility model;
FIG. 3 is a top view of the handle of a liquefied gas injection lance in accordance with an embodiment of the present utility model;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 4 at C;
FIG. 6 is a partial enlarged view at D in FIG. 4;
fig. 7 is a sectional view taken along the direction B-B in fig. 4.
Wherein, the liquid crystal display device comprises a liquid crystal display device,
1. a handle housing;
2. a metal connecting pipe; 21. a lumen;
3. a joint; 31. a rotating part; 311. a groove; 32. a connection part; 321. a tubular body; 322. a connecting flange; 3221. a proximal bevel; 3222. a distal ramp; 33. an inner cavity;
4. an outer connecting sleeve; 41. a distal end portion; 42. a proximal portion; 43. a container;
5. a hollow shaft; 6. limiting snap springs; 61. a limiting section; 62. a circular arc section; 621. breaking the notch; 7. a seal ring; 8. a shaft sleeve.
Detailed Description
Preferred embodiments of the present utility model will be described in detail below with reference to the attached drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
The embodiment provides a handle of liquefied gas spray gun, and the one end of handle is through hose and liquefied gas cylinder bottle intercommunication, and the other end passes through air duct and nozzle intercommunication. The handle is also provided with a valve for adjusting the release amount of the fuel gas and a spray gun switch for adjusting the on-off of the pipeline. When in use, the spray gun switch is slightly loosened, and the spray gun is directly ignited at the spray nozzle. The handle of the liquefied gas spray gun is described in detail below.
Referring to fig. 1 to 7, the handle includes a handle housing 1, a metal connection pipe 2, a joint 3, an outer connection sleeve 4, a hollow shaft 5 and a limit clamp spring 6. Wherein, the metal connecting pipe 2 is inserted into the handle shell 1 and is used as a part of the air duct or is connected with the air duct. More specifically, the metal connection pipe 2 is an aluminum alloy pipe.
Further, the joint 3 includes a rotating portion 31 and a connecting portion 32 for connecting a liquefied gas supply hose (not shown in the drawings), specifically, the liquefied gas supply hose is sleeved on the connecting portion 32, and the rotating portion 31 is inserted into the handle case 1. The rotary part 31 is along the first axis X 1 Extending, the connecting portion 32 is along the second axis X 2 Extending a first axis X 1 And a second axis X 2 An included angle of more than 0 and less than 180 degrees is formed between the two. In particular in the present embodiment, the first axis X 1 And a second axis X 2 Forming an included angle of 45 degrees.
The connection 32 includes a second axis X 2 An extended tubular body 321 and a connecting flange 322 extending outwardly from an outer surface of the tubular body 321. The tubular body 321 has a proximal end portion in the shape of a truncated cone, and the number of the connection flanges 322 is plural and arranged at intervals along the length direction of the tubular body 321.
Further, as shown in connection with fig. 4 and 5, at least one connecting flange 322 has a proximal bevel 3221 and a distal bevel 3222, wherein the proximal bevel 3221 is further from the tubular body 321 and the distal bevel 3222 is closer to the tubular body 321. The angle between the proximal bevel 3221 and the length of the tubular body 321 is smaller than the angle between the distal bevel 3222 and the length of the tubular body 321, and the connection flange 322 is designed to allow the hose to be more easily sleeved on the connection portion 32. The cross section of the connecting flange 322 along the length of the tubular body 321 includes a rectangle, rounded rectangle, triangle, or rounded triangle. In particular, in this embodiment, the shape of the connecting flange 322 is rounded rectangle as well as rounded triangle.
Referring to fig. 4, a sleeve 8 is provided between the outer joint sleeve 4 and the rotating part 31. The outer connection sleeve 4 is arranged in the handle housing 1 and has opposite distal and proximal ends 41, 42. The metal connection tube 2 also has a distal end portion and an opposite proximal end portion, the distal end portion of the metal connection tube 2 being located at the distal end portion of the handle, and the outer connection sleeve 4 being located at the proximal end portion of the handle. The proximal end portion of the metal connection tube 2 is fixedly inserted into the distal end portion 41 of the outer connection sleeve 4. More specifically, the proximal end portion of the metal connection tube 2 and the distal end portion 41 of the outer connection sleeve 4 are screwed and sealed by a sealant layer therebetween. The proximal portion 42 in this embodiment refers to a direction approaching the body of the operator when the liquefaction spray gun is operated, and the distal portion 41 refers to a direction away from the body.
The rotary part 31 is rotatable about a first axis X 1 The connection part 32 and the rotation part 31 are separately provided, and the rotation part 32 is inserted into the connection part 31 and is screw-coupled to the proximal end 42 of the outer joint sleeve 4. When the liquefied gas spray gun is used for flaming, the direction of the handle can be changed at will, the handle and the liquefied gas supply hose are not easy to twist, namely, the use angle of the handle is not limited, 360-degree rotation is supported, the direction or the position of flaming can be changed at will, and the use is more flexible and convenient.
The metal connection pipe 2 has a lumen 21, the joint 3 has an inner cavity 33, the lumen 21 of the metal connection pipe 2 and the inner cavity 33 of the joint 3 are communicated with each other, and the rotation axis of the joint 33 (i.e., the first axis X 1 ) Parallel or coincident with the centerline of the metal connection pipe 2. In particular, in the present embodiment, the rotation axis of the joint 33 coincides with the center line of the metal connection pipe 2, and in other embodiments, the rotation axis of the joint 33 may be parallel to the center line of the metal connection pipe 2.
Further, the hollow shaft 5 is disposed in the outer connecting sleeve 4, one end of the hollow shaft 5 is inserted into the proximal end portion of the metal connecting tube 2 and sealed by the sealing ring 7, the other end of the hollow shaft 5 is relatively rotatably inserted into the rotating portion 31 and sealed by the sealing ring 7, the hollow shaft 5 is hollow and communicates the lumen 21 of the metal connecting tube 2 with the inner cavity 33 of the joint 3, that is, the interiors of the metal connecting tube 2, the hollow shaft 5 and the joint 3 are mutually communicated.
The limiting clamp spring 6 is used for limiting the rotating part 31 relative to the outer connecting sleeve 4 along the first axis X 1 And (5) moving. As shown in fig. 4 and 7, the limit clamp spring 6 is arranged on the outer connecting sleeve 4 and is provided with a limit positioned in the outer connecting sleeve 4The outer surface of the rotating part 31 is provided with a circle of grooves 311 along the circumferential direction, and the limiting section 61 is clamped in the grooves 311. Further, the limit clamp spring 6 includes two arc sections 62, the two arc sections 62 are connected by two limit sections 61, the limit sections 61 linearly extend, and one of the arc sections 62 has a breaking notch 621 to allow the limit clamp spring 6 to deform. Further, the limit clamp spring 6 is arranged in the outer connecting sleeve 4 in a penetrating way, the outer surface of the limit clamp spring is provided with a containing groove 43, and the two arc sections 62 are positioned in the containing groove 43; the outer connecting sleeve 4 is further provided with a through hole, the through hole is communicated with the containing groove 43, and the limiting section 61 penetrates through the through hole and then enters the outer connecting sleeve 4, so that the limiting section can be matched with the groove 311 on the joint 3. During assembly, the joint 3 is pushed into the outer connecting sleeve 4 until the accommodating groove 43 on the outer connecting sleeve 4, the through hole and the groove 311 on the joint 3 are aligned, two end parts of a U-shaped limit clamp spring which is not bent (namely, the clamp spring is integrally U-shaped, two end parts linearly extend and are consistent with the length direction of the limit section 61) penetrate into the outer connecting sleeve 4 from the through hole, and penetrate out from the opposite side through hole after passing through the groove 311, then the part penetrating out into the outer connecting sleeve 4 is bent, and is pressed into the accommodating groove 43 on the outer connecting sleeve 4 to form an arc section 62 with a notch, and the two limit sections 61 are positioned in the groove 311 to allow the joint 3 to rotate between the two limit sections 61 and not move along the axial direction.
The handle of the liquefied gas spray gun of this embodiment, the rotating portion 31 is along the first axis X 1 Extending, the connecting portion 32 is along the second axis X 2 Extending a first axis X 1 And a second axis X 2 The included angle of 45 degrees is formed between the handle shell and the handle shell, the connecting part 32 is connected with the liquefied gas supply hose, the rotating part 31 is rotatably connected with the outer connecting sleeve 4, when the liquefied gas spray gun is used for flaming, the connecting part 32 cannot rotate along with the handle shell 1 or at least rotate in a smaller range in the process of changing the angle of the handle, the torsion degree of the liquefied gas supply hose is reduced, the torsion of the liquefied gas supply hose is avoided even completely, the service time of the gas supply hose is prolonged, the leakage risk is reduced, meanwhile, the limitation of the liquefied gas supply hose on the use angle of the handle is smaller, the handle is allowed to move in a large range relative to the liquefied gas source, and the handle is convenient to use.
As used in this specification and in the claims, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The term "and/or" as used herein includes any combination of one or more of the associated listed items.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in the present utility model are merely with respect to the mutual positional relationship of the constituent elements of the present utility model in the drawings.
The above-described embodiments are provided for illustrating the technical concept and features of the present utility model, and are intended to be preferred embodiments for those skilled in the art to understand the present utility model and implement the same according to the present utility model, not to limit the scope of the present utility model. All equivalent changes or modifications made according to the principles of the present utility model should be construed to be included within the scope of the present utility model.

Claims (12)

1. The utility model provides a handle of liquefied gas spray gun, includes handle shell and inserts and locate the metal connecting pipe in the handle shell, its characterized in that, the handle still includes:
the connector comprises a rotating part inserted into the handle shell and a connecting part used for connecting a liquefied gas supply hose, wherein the rotating part extends along a first axis, the connecting part extends along a second axis, and an included angle of more than 0 and less than 180 degrees is formed between the first axis and the second axis;
an outer connecting sleeve disposed within the handle housing and having opposite distal and proximal ends, the proximal end of the metallic connecting tube being fixedly connected to the distal end of the outer connecting sleeve, the rotating portion being rotatably connected to the proximal end of the outer connecting sleeve about the first axis;
wherein, the lumen of the metal connecting pipe is communicated with the inner cavity of the joint.
2. The handle of a liquefied gas spray gun according to claim 1, wherein the rotating part and the connecting part body are provided, and the rotating part is inserted into the connecting part and is screw-coupled.
3. The handle of a liquefied gas spray gun of claim 1, wherein the included angle is greater than or equal to 30 degrees and less than or equal to 60 degrees.
4. The handle of a liquefied gas spray gun as claimed in claim 1, wherein said connection includes a tubular body extending along said second axis and a connection flange extending outwardly from an outer surface of said tubular body.
5. The handle of a liquefied gas spray gun as claimed in claim 4, wherein said connection flanges are plural in number and are spaced apart along the length of said tubular body.
6. The handle of a liquefied gas injection lance of claim 5 wherein at least one of the connection flanges has a proximal slope that is farther from the connection and a distal slope that is closer to the connection, the proximal slope having a smaller angle with the length of the tubular body than the distal slope and the length of the tubular body.
7. The handle of a liquefied gas spray gun as claimed in claim 5, wherein said tubular body has a proximal end portion having a truncated cone shape.
8. The handle of a liquefied gas spray gun according to claim 1, further comprising a hollow shaft disposed in the outer connecting sleeve, one end of the hollow shaft being inserted into a proximal end portion of the metal connecting tube and sealed, the other end of the hollow shaft being relatively rotatably inserted into the rotating portion and sealed, the hollow shaft being disposed in a hollow manner and communicating a lumen of the metal connecting tube with an inner cavity of the joint.
9. The handle of the liquefied gas spray gun according to claim 1, wherein the proximal end portion of the metal connection tube is fixedly inserted into the distal end portion of the outer connection tube, and the proximal end portion of the metal connection tube and the distal end portion of the outer connection tube are connected by screw threads and sealed by a sealant layer therebetween.
10. The handle of a liquefied gas spray gun of claim 1, further comprising a limit clip for limiting movement of said rotating portion relative to said outer adapter sleeve along said first axis.
11. The handle of the liquefied gas spray gun according to claim 10, wherein the limit clamp spring is arranged on the outer connecting sleeve and provided with a limit section positioned in the outer connecting sleeve, a circle of groove is formed in the outer surface of the rotating part along the circumferential direction of the rotating part, and the limit section is clamped in the groove.
12. The handle of a liquefied gas spray gun according to claim 11, wherein said limit clip comprises two circular arc segments, said two circular arc segments being connected by two said limit segments, said limit segments extending in a straight line, one of said circular arc segments having a break notch to allow said limit clip to deform.
CN202321768019.1U 2023-07-07 2023-07-07 Handle of liquefied gas spray gun Active CN219473642U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321768019.1U CN219473642U (en) 2023-07-07 2023-07-07 Handle of liquefied gas spray gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321768019.1U CN219473642U (en) 2023-07-07 2023-07-07 Handle of liquefied gas spray gun

Publications (1)

Publication Number Publication Date
CN219473642U true CN219473642U (en) 2023-08-04

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Family Applications (1)

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CN202321768019.1U Active CN219473642U (en) 2023-07-07 2023-07-07 Handle of liquefied gas spray gun

Country Status (1)

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CN (1) CN219473642U (en)

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