Scald-proof sheath for heat gun

Abstract

The hot air gun anti-scald sheath comprises a heat insulation sleeve and a net-shaped sleeve, the heat insulation sleeve is provided with a conical barrel body, an installation ring, a positioning convex rib and a cooling through hole, the installation ring used for being arranged on a gun nozzle in a sleeved mode is arranged on the large opening end face of the conical barrel body, and the positioning convex rib used for being clamped into the gun nozzle is arranged on the inner surface of the installation ring. A net-shaped sleeve is fixed to the end face of a small opening of the conical barrel, a plurality of cooling through holes are formed in the outer wall of the conical barrel at equal angles, the net-shaped sleeve is provided with axial supporting ribs and annular reinforcing ribs, the axial supporting ribs are distributed along the circumference of the small opening of the heat insulation sleeve at equal angles, and the supporting ribs axially wrap the annular reinforcing ribs. When the hot air gun is used, the metal air outlet is wrapped by the heat insulation sleeve, so that an operator is prevented from being scalded by the high-temperature metal air outlet, and meanwhile, the operator can be prevented from being scalded by high-temperature hot air which is directly blown out through the net-shaped sleeve arranged at the tail part of the metal air outlet.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot -air gun anti scald technical field especially relates to a hot -air gun anti scald sheath. BACKGROUND

[0002] Hot -air gun is the tool that hot -air is blown out by heating resistance wire, and the component welding or component is taken out through hot -air, and the metal air outlet temperature of hot -air gun is very high after long -time use, and the air outlet of existing hot -air gun is directly exposed outside mostly, and the high -temperature air outlet exposed outside is easy to scald the operator, therefore, to solve the above -mentioned problem design a kind of hot -air gun anti scald sheath. UTILITY MODEL CONTENTS

[0003] In view of the deficiency of the prior art hot -air gun anti scald technology, the utility model aims at providing a kind of hot -air gun anti scald sheath, with the advantages of preventing scalding, detachable etc.

[0004] To achieve the above object, one technical scheme of the utility model is: a kind of hot -air gun anti scald sheath, including heat insulating sleeve and net sleeve, the heat insulating sleeve has conical cylinder, installation ring, positioning convex rib and cooling through-hole, the installation ring is arranged on the big opening end surface of the conical cylinder for gun nozzle, the positioning convex rib for being inserted into gun nozzle is arranged on the inner surface of the installation ring, the net sleeve is fixed on the small opening end surface of the conical cylinder, a plurality of cooling through-holes are arranged at equal angles on the outer wall of the conical cylinder, the net sleeve has axial support rib and ring type reinforcing rib, a plurality of axial support ribs are distributed at equal angles along the small opening circumference of the heat insulating sleeve, and the support rib is axially covered with multiple rings of ring type reinforcing rib;

[0005] Preferably, the heat insulating sleeve covers the metal air outlet, the length of the heat insulating sleeve is greater than the length of the metal air outlet, and a heat insulation cavity is formed between the heat insulating sleeve and the metal air outlet of the hot -air gun;

[0006] Further preferably, the heat insulation cavity is in a negative pressure state when the metal air outlet blows out, and the heat insulation cavity is used to suck external normal temperature air from the cooling through-hole to cool the heat insulating sleeve; When the metal air outlet blows out, due to the viscosity of gas, the blown high-temperature hot air will suck the gas in the heat insulation cavity, thereby forming a negative pressure to suck external normal temperature air from the cooling through-hole to cool the heat insulating sleeve;

[0007] Preferably, the net sleeve is located at the tail of the metal air outlet; The net sleeve can prevent the operator from being scalded by the directly blown high-temperature hot air;

[0008] Preferably, the heat insulating sleeve and the net sleeve are made of non-metallic high-temperature resistant material;

[0009] The beneficial effects of this utility model are: 1. When using a hot air gun, the metal air outlet is covered by a heat insulation sleeve to prevent the operator from being burned by the high-temperature metal air outlet. At the same time, the mesh sleeve set at the tail of the metal air outlet can prevent the operator from being burned by the directly blown high-temperature hot air; 2. The anti-scalding sleeve is fitted onto the nozzle of the hot air gun by an installation ring, and then the positioning rib inside the installation ring is used to lock it to the nozzle, thereby achieving a detachable fixing method, which can be applied to different working scenarios. Attached Figure Description

[0010] Fig. 1 This is a front structural view of the present invention;

[0011] Fig. 2 This is a cross-sectional structural view of the present invention;

[0012] Fig. 3 This is a three-dimensional view of the present invention;

[0013] Fig. 4 This is a cross-sectional structural view of the present invention and the hot air gun in the installed state. Detailed Implementation

[0014] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0015] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0016] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "equipped with," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] Please see Figs. 1 to 4 The embodiments of this utility model include:

[0018] A heat gun anti-scalding sleeve includes a heat insulation sleeve 1 and a mesh sleeve 2. The heat insulation sleeve 1 has a conical cylinder 11, a mounting ring 12, a positioning rib 13, and a cooling through hole 14. The large opening end face of the conical cylinder 11 is provided with a mounting ring 12 for fitting onto the nozzle. The inner surface of the mounting ring 12 is provided with a positioning rib 13 for engaging the nozzle. The small opening end face of the conical cylinder 11 is fixed with the mesh sleeve 2. The outer wall of the conical cylinder 11 is provided with multiple cooling through holes 14 at equal angles. The mesh sleeve 2 has axial support ribs 21 and annular reinforcing ribs 22. Multiple axial support ribs 21 are distributed at equal angles along the circumference of the small opening of the heat insulation sleeve 1, and the support ribs are axially covered with multiple rings of annular reinforcing ribs 22.

[0019] The heat insulation sleeve 1 covers the metal air outlet. The length of the heat insulation sleeve 1 is greater than the length of the metal air outlet. A heat insulation cavity 3 is formed between the heat insulation sleeve 1 and the metal air outlet of the hot air gun.

[0020] The heat insulation cavity 3 is under negative pressure when the air is blown out of the metal outlet. The heat insulation cavity 3 is used to draw in ambient temperature air from the outside through the cooling through hole 14 to cool the heat insulation sleeve 1. When the air is blown out of the metal outlet, due to the viscosity of the gas, the hot air blown out will draw away the gas in the heat insulation cavity 3, thereby forming a negative pressure to draw in ambient temperature air from the outside through the cooling through hole 14 to cool the heat insulation sleeve 1.

[0021] The mesh sleeve 2 is located at the tail of the metal air outlet; the mesh sleeve 2 can prevent operators from being burned by the directly blown high-temperature hot air;

[0022] The heat insulation sleeve 1 and the mesh sleeve 2 are made of non-metallic high-temperature resistant material;

[0023] With the above settings, its specific working principle in actual operation is as follows:

[0024] When using a hot air gun, the heat insulation sleeve 1 covers the metal air outlet to prevent the high-temperature metal air outlet from burning the operator; and the hot air blown out of the metal air outlet of the hot air gun, due to the viscosity of the gas, the hot air blown out will draw away the gas in the heat insulation cavity 3, thereby forming a negative pressure to draw in the outside room temperature air from the cooling through hole 14 to cool the heat insulation sleeve 1.

[0025] Meanwhile, the mesh sleeve 2 is located at the tail of the metal air outlet, thus preventing operators from being burned by the directly blown high-temperature hot air;

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat gun anti-scalding cover, characterized in that, The device includes a heat-insulating sleeve and a mesh sleeve. The heat-insulating sleeve has a conical cylindrical body, a mounting ring, positioning ribs, and cooling through holes. The large opening end face of the conical cylindrical body is provided with a mounting ring for fitting onto the nozzle. The inner surface of the mounting ring is provided with positioning ribs for engaging the nozzle. The small opening end face of the conical cylindrical body is fixed with a mesh sleeve. The outer wall of the conical cylindrical body is provided with multiple cooling through holes at equal angles. The mesh sleeve has axial support ribs and annular reinforcing ribs. Multiple axial support ribs are distributed at equal angles along the circumference of the small opening of the heat-insulating sleeve, and the support ribs are axially covered by multiple ring-shaped reinforcing ribs.

2. The heat gun anti-scalding sleeve according to claim 1, characterized in that, The heat insulation sleeve covers the metal air outlet, and the length of the heat insulation sleeve is greater than the length of the metal air outlet. A heat insulation cavity is formed between the heat insulation sleeve and the metal air outlet of the hot air gun.

3. The heat gun anti-scalding sleeve according to claim 2, characterized in that, The heat insulation cavity is under negative pressure when air is blown out of the metal air outlet. The heat insulation cavity is used to draw in ambient temperature air from outside through the cooling hole to cool the heat insulation sleeve.

4. A heat gun anti-scalding sleeve according to claim 1, characterized in that... The mesh sleeve is located at the tail of the metal air outlet.

5. A heat gun anti-scalding sleeve according to claim 1, characterized in that... The heat insulation sleeve and the mesh sleeve are made of non-metallic high-temperature resistant material.

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