CN211822381U - Spray gun - Google Patents

Abstract

The utility model relates to a spray gun, which comprises a shell, one end of the shell extends to form a fire channel, the lower end of the shell is provided with a steam box, an air inlet pipeline is arranged in the shell, one side of the air inlet pipeline is communicated with the fire channel, the bottom end of the air inlet pipeline is communicated with the steam box, a valve rod is arranged in the air inlet pipeline, a knob is arranged at the upper end of the shell, the knob is in linkage fit with one end of the valve rod, the rotation of the knob drives the valve rod to move axially, one side of the air inlet pipeline is provided with a piezoelectric electron, one side of the piezoelectric electron is provided with a limiting column, the bottom of the knob is provided with a limiting block, the limiting block and the piezoelectric electron form a circumferential rotation limiting position, the limiting block and the limiting column form an axial pressing limiting position on an axial line of the limiting column, the lifting adjustment of the air outlet of the valve rod is realized through, and under the condition that the air outlet is opened, the matching of the limiting block and the limiting column is released, and the ignition can be pressed at any time.

Description

Spray gun

Technical Field

The utility model relates to a spray gun.

Background

The welding gun/flame gun consists of a spray head assembly, a valve assembly, a pistol type casing, a valve body with a three-way inner cavity and a gas tank bottom ring assembly. During the use, will be located the adjust knob of valve body top and revolve to the open position, hold the handle forefinger and pull the trigger and can carry out the electron and ignite, spout flame, accessible rotation adjust knob controls flame size in the use. Although the portability and the convenience of the whole product are greatly improved, the product has public attributes, and when the product is taken up under the condition that the adjusting knob is opened, if the product is not prepared, the trigger is inadvertently pressed, the flame is sprayed out immediately, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a spray gun.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a spray gun, its includes the casing, the one end of casing is extended and is formed out the fire passageway, the lower extreme of casing is equipped with the steam box, be equipped with the admission line in the casing, one side and the passageway intercommunication of putting out the fire of admission line, the bottom and the steam box intercommunication of admission line, be equipped with the valve rod in the admission line, the knob sets up the upper end at the casing, the knob cooperates with the one end linkage of valve rod, the rotatory valve rod axial action that drives of knob, one side of admission line is equipped with piezoelectricity electron, one side of piezoelectricity electron is equipped with spacing post, the knob bottom is equipped with the stopper, the stopper constitutes the rotation in a circumferential direction with piezoelectricity electron spacing post, it is spacing to constitute the axial with spacing post on spacing post axis to press down.

The steam box is detachably connected with the shell.

The steam box is characterized in that a plurality of clamping blocks are circumferentially arranged on the inner side of the bottom of the shell, and a 7-shaped bayonet matched with the clamping blocks in a limiting mode is circumferentially arranged on the outer side of the top end of the steam box.

The air inlet pipeline is of an axially through tubular structure, one side of the tubular structure extends to form an air outlet, and the air outlet is communicated with the fire outlet channel.

The air inlet pipeline is internally provided with a valve seat, and the valve rod and the valve seat form sealing fit.

The fire outlet channel consists of a ceramic cup and an ignition pagoda.

The height of the limiting column is larger than the working stroke of the piezoelectric electron.

One side of the air inlet pipeline forms a piezoelectric electronic fixing cavity.

The utility model has the advantages that: the lift adjustment air output of valve rod is realized through the circumference rotation of knob, and when the gas outlet was closed completely, by the cooperation of spacing post with the stopper, prevented the mistake of knob and pressed, and under the condition that the gas outlet was opened, the stopper was relieved with the cooperation of spacing post, can press the ignition at any time.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is a schematic diagram of the separation of the steam box and the casing according to the present invention.

Fig. 4 is a schematic structural view of the steam box.

Fig. 5 is a schematic sectional view at the knob.

Fig. 6 is a schematic structural diagram of the knob.

Fig. 7 is a schematic structural diagram of the housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in the figure, the spray gun comprises a shell 1 which is approximately T-shaped, one end of the shell extends to form a fire outlet channel, the lower end of the shell is provided with a steam box 2, an air inlet pipeline 9 is arranged in the shell, the air inlet pipeline is of a tubular structure which is axially communicated, one side of the tubular structure extends to form an air outlet, the air outlet is communicated with the fire outlet channel, the upper end and the lower end of the air outlet channel are both open, the lower end of the air outlet channel is communicated with the steam box 2, the upper end of the air outlet channel is used for placing a valve rod, the valve rod is used for adjusting the air outlet amount of the air outlet, the air outlet is communicated with the fire outlet channel, the fire outlet channel comprises a ceramic cup 10 and an ignition pagoda 3, the ceramic cup is limited and fixed by the shell.

Knob 4 sets up the upper end at the casing, the one end linkage cooperation of knob and valve rod, the upper end of valve rod 5 sets up the anticreep screw, inlet line's upper end is equipped with the internal thread, valve rod surface part be equipped with the external screw thread of internal thread looks adaptation, both mutually support, simultaneously the rotation of knob can drive the action of valve rod axial, be equipped with the disk seat in the inlet line, the bottom of valve rod constitutes sealed cooperation with the disk seat simultaneously, and the valve rod circumference that is located the gas outlet upside is equipped with a plurality of sealing washers for guarantee the sealing of inlet line upper end, one side of inlet line is equipped with piezoelectricity electron 6, promptly one side of inlet line forms the fixed chamber of piezoelectricity electron, piezoelectricity electron sets up in the fixed intracavity of this piezoelectricity electron, and this piezoelectricity electron can be pressed to the axial action of knob.

In order to ensure the safety and reliability of the welding gun, one side of the piezoelectric electron is provided with a limiting column, the bottom of the knob is provided with a limiting block, the limiting block 13 and the piezoelectric electron form circumferential rotation limiting, namely when the welding gun is used, the maximum position limiting is realized by utilizing the matching of the piezoelectric electron and the limiting block, the maximum position of the gas output and the closing position are realized, the limiting block and the limiting column 14 form axial pressing limiting on the axis of the limiting column, the limiting column is arranged at the position where the valve rod is tightly attached to the valve seat, namely in the closing state, the knob can be prevented from being pressed due to the fact that the limiting column and the limiting block are just on the same axis, the height of the further limiting column is larger than the working stroke of the piezoelectric electron, namely, the knob is ensured not to trigger the piezoelectric electron when the knob is limited by the limiting column under.

The steam box is detachably connected with the shell. The steam box and the shell are preferably detachable, the steam box can be replaced when the gas in the steam box is used up, the top end of the steam box is provided with a gas outlet head, when the steam box is matched with the shell, the gas outlet head 8 is communicated with the gas inlet pipeline, and a sealing piece is arranged between the gas outlet head and the gas inlet pipeline, so that the sealing reliability when the gas in the steam box and the shell are connected is ensured.

The steam box is characterized in that a clamping piece 7 is arranged at the bottom of the shell, a plurality of clamping blocks 11 are circumferentially arranged on the inner side of the clamping piece, and 7-shaped bayonets 12 which are in limit fit with the clamping blocks are circumferentially arranged on the outer side of the top end of the steam box. The clamping is completed by the mutual matching of the clamping block and the 7-shaped bayonet.

The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims (8)

1. A spray gun, characterized by: it includes the casing, the one end of casing is extended and is formed out the passageway of firing, the lower extreme of casing is equipped with the steam box, be equipped with the admission line in the casing, one side and the passageway intercommunication of firing of admission line, the bottom and the steam box intercommunication of admission line, be equipped with the valve rod in the admission line, the knob sets up the upper end at the casing, the knob cooperates with the one end linkage of valve rod, the rotatory valve rod axial action of driving of knob, one side of admission line is equipped with piezoelectricity electron, one side of piezoelectricity electron is equipped with spacing post, the knob bottom is equipped with the stopper, it is spacing that stopper and piezoelectricity electron constitute the circumferential rotation, it is spacing that stopper and spacing post constitute the axial on spacing post axis to press down.

2. A spray gun as claimed in claim 1, wherein: the steam box is detachably connected with the shell.

3. A spray gun as claimed in claim 2, in which: the steam box is characterized in that a plurality of clamping blocks are circumferentially arranged on the inner side of the bottom of the shell, and a 7-shaped bayonet matched with the clamping blocks in a limiting mode is circumferentially arranged on the outer side of the top end of the steam box.

4. A spray gun as claimed in claim 1, wherein: the air inlet pipeline is of an axially through tubular structure, one side of the tubular structure extends to form an air outlet, and the air outlet is communicated with the fire outlet channel.

5. A spray gun according to claim 4, wherein: the air inlet pipeline is internally provided with a valve seat, and the valve rod and the valve seat form sealing fit.

6. A spray gun according to claim 4, wherein: the fire outlet channel consists of a ceramic cup and an ignition pagoda.

7. A spray gun as claimed in claim 1, wherein: the height of the limiting column is larger than the working stroke of the piezoelectric electron.

8. A spray gun as claimed in claim 1, wherein: one side of the air inlet pipeline forms a piezoelectric electronic fixing cavity.

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