CN216384178U

CN216384178U - Air inlet and outlet structure for air box of spray gun

Info

Publication number: CN216384178U
Application number: CN202122708241.XU
Authority: CN
Inventors: 李晓忠
Original assignee: Zhejiang Honest Smoking Sets Co ltd
Current assignee: Zhejiang Honest Smoking Sets Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-04-26
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses an air inlet and outlet structure for a spray gun air box, which comprises an air outlet assembly, a fire adjusting rod and an air inlet assembly, wherein the air outlet assembly, the fire adjusting rod and the air inlet assembly are all arranged on a gun body, the air inlet assembly is positioned on one side of the air outlet assembly, the air inlet assembly can control the air adding amount, the air outlet assembly comprises an air outlet valve associated with an ignition device and an air outlet pipe barrel coaxially sleeved and connected with the air outlet valve, the air outlet valve is provided with a mounting hole positioned in the air outlet pipe barrel, the bottom of the mounting hole is provided with an air inlet hole communicated with an air outlet channel of the air outlet valve, the depth of an adjusting head of the fire adjusting rod is adjustably inserted into the air inlet hole, the lower end of the fire adjusting rod penetrates through a bottom plate of the air box of the gun body, and the air outlet amount is adjusted by operating the lower end of the fire adjusting rod. The utility model can control the air-entrapping amount to ensure that the ignition is safe, can utilize down ignition to ensure that the ignition adjusting process is convenient and safe, and has simple structure.

Description

Air inlet and outlet structure for air box of spray gun

Technical Field

The utility model relates to the technical field of flame guns, in particular to an air inlet and outlet structure for a spray gun air box.

Background

A flame gun is a pipeless palm ignition tool for controlling gas combustion to form cylindrical flame for heating, widely applied to outdoor and household life by using for picnic, gas ignition, barbecue, wax ignition and the like, and generally comprises a gas outlet component, an ignition component, a gas inlet valve and a gas box, wherein the existing gas inlet valve generally cannot control gas adding amount, the gas outlet pipe is easily and mistakenly excessively added by continuous gas adding, and the gas outlet pipe is often soaked in a liquid storage in the gas box due to excessive gas adding, so that when the flame gun is used, liquid is easily sprayed or flaming, potential safety hazards exist, the use is inconvenient, sometimes a flame adjusting mechanism is generally arranged for adjusting the flame size, and the adjusting mechanism is generally the same as a mode of adjusting the flame size of a disposable lighter in the market, therefore, the flame adjusting mechanism generally acts on a gas outlet valve, and because the flame adjusting mechanism is short in distance from the flame, therefore, the scald is easy to be generated, the burn or scald is easy to be burnt or scalded when the flame size is adjusted during the flaming, and the use safety is low.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an air inlet and outlet structure for a spray gun air box to solve the above technical problems.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a spray gun is business turn over gas structure for gas tank, is including all setting up the subassembly of giving vent to anger, adjusting the flame rod and the subassembly that admits air on the rifle body, the subassembly that admits air is located one side of the subassembly of giving vent to anger, just the subassembly that admits air can control air entrainment, the subassembly of giving vent to anger include with ignition associated air outlet valve and with the coaxial cover of air outlet valve establishes the outlet pipe section of thick bamboo of connecting, the air outlet valve has and is located the mounting hole in the outlet pipe section of thick bamboo, the bottom of mounting hole be equipped with the inlet port of the outlet channel intercommunication of air outlet valve, adjustable the inserting of the regulation head degree of depth of adjusting the flame rod in the inlet port, the lower extreme of adjusting the flame rod runs through the bottom plate of the gas tank of the rifle body, and through the operation the lower extreme of adjusting the flame rod carries out the air output and adjusts.

Further, the fire adjusting rod further comprises a connecting rod which is coaxially connected with the adjusting head and is matched and connected with the mounting hole, the outer diameter of the connecting rod is smaller than the inner diameter of the air outlet pipe barrel, the lower end of the connecting rod is connected with an operating rod of which the outer diameter is larger than the inner diameter of the air outlet pipe barrel, and the operating rod penetrates through the bottom plate of the air box.

Furthermore, the connecting rod is cylindrical, and a tangent plane is arranged on the outer peripheral surface of one end, close to the adjusting head, of the connecting rod, so that a gap is reserved between the connecting rod and the mounting hole.

Furthermore, the outer peripheral surface of the operating rod is a toothed surface, at least one annular groove is formed in the outer periphery of the operating rod, a first sealing ring in contact with the gun body is arranged in the annular groove, and a straight groove is formed in the bottom end surface of the operating rod.

Furthermore, the adjusting head is in a cone frustum shape, and the large end of the adjusting head is connected with the connecting rod.

Furthermore, the air inlet assembly comprises an air inlet valve body, an air inlet needle is arranged in a gap in the air inlet valve body, a copper cap is inserted in the air inlet valve body, a gap is formed between the air inlet valve body and the copper cap, the copper cap is provided with a cap hole communicated with the air box, the upper part of the air inlet needle is inserted in the cap hole, a compression spring arranged in the cap hole abuts against the air inlet needle, the lower part of the air inlet needle is provided with a blind hole, the side wall of the air inlet needle is provided with a side air outlet communicated with the blind hole, a compression sealing ring is arranged at the side air outlet of the air inlet needle, and in a natural state, the compression spring drives the compression sealing ring to abut against the air inlet valve body by pushing the air inlet needle to realize sealing between the air inlet needle and the air inlet valve body; when the air inlet needle is pushed, the compression spring is compressed, and the side air outlet hole is communicated with the cap hole, so that air filling is realized.

Furthermore, the upper end cover of the copper cap is provided with an inner tube communicated with the cap hole, the upper end cover of the air inlet valve body is provided with an outer tube, and the inner tube is higher than the outer tube.

Furthermore, a second sealing ring which is contacted with the gun body is arranged on the outer peripheral surface of the air inlet valve body.

Further, a sponge tube positioned on the outer ring of the air outlet tube barrel is arranged in the air box.

The technical scheme can show that the utility model has the advantages that: the fire regulating structure is adopted, so that the fire regulating process is simple and safe; the structure of the fire adjusting rod ensures that the fire adjusting process is reliable and smooth; the air intake assembly can control the air charging amount, so that fire spraying or liquid splashing during ignition due to excessive air charging is avoided, and the use is safe; the arrangement of the sponge tubes enables gas to be uniformly distributed in the gas box, so that flame is stable during ignition.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a side view of the present invention.

Fig. 2 is a sectional view taken along the line a-a of fig. 1 according to the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a sectional view taken along the direction B-B of fig. 3 according to the present invention.

Fig. 5 is a schematic structural diagram of the gas outlet assembly of the present invention.

Fig. 6 is a schematic structural view of the fire-adjusting rod of the present invention.

Fig. 7 is a schematic structural view of an air intake assembly of the present invention.

Fig. 8 is a partially enlarged schematic view of the intake assembly of the present invention.

List of reference numerals: the gun comprises a gun body 1, an air box 11, a sponge tube 12, an ignition device 2, an air outlet assembly 3, an air outlet valve 31, a mounting hole 311, an air inlet hole 312, an air outlet tube barrel 32, a fire adjusting rod 4, an operating rod 41, a connecting rod 42, an adjusting head 43, a tangent plane 44, an annular groove 45, a straight groove 46, an air inlet assembly 5, an air inlet valve body 51, an air inlet needle 52, a blind hole 521, a compression sealing ring 53, a copper cap 54, a compression spring 55, an inner tube 56, an outer tube 57, a first sealing ring 6 and a second sealing ring 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8 for further explanation of the present application, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, an air inlet and outlet structure for a spray gun air box includes an air outlet component 3, a fire adjusting lever 4 and an air inlet component 5 all disposed on a gun body 1, the air inlet component 5 is disposed on one side of the air outlet component 3, and the air inlet component 5 can control an air adding amount, the air outlet component 3 includes an air outlet valve 31 associated with an ignition device 2 and an air outlet pipe barrel 32 coaxially sleeved and connected with the air outlet valve 31, the air outlet valve 31 has a mounting hole 311 disposed in the air outlet pipe barrel 32, an air inlet hole 312 communicated with an air outlet channel of the air outlet valve 31 is disposed at the bottom of the mounting hole 311, a depth of an adjusting head 43 of the fire adjusting lever 4 is inserted into the air inlet hole 312, a lower end of the fire adjusting lever 4 penetrates through a bottom plate of the air box 11 of the gun body 1, and through the operation the lower extreme of accent fire rod 4 carries out the air output and adjusts, the setting up of accent fire rod 4 makes this application for transferring the fire down, and simple structure, convenient operation not only, and flame is kept away from to operation process, makes the operational safety high.

Preferably, the air outlet assembly 3 is close to one side of the gun body 1, so that the gun body 1 is ensured to rotate and incline, the air inlet of the air outlet pipe barrel 32 can be positioned above the liquid level in the air box 11, the air entering the air outlet pipe barrel 32 is ensured to be gaseous, and the fire is prevented from being splashed or the liquid is prevented from being splashed outwards during ignition, so that the ignition is safe.

As shown in fig. 4, 5 and 6, the fire adjusting lever 4 further includes a connecting rod 42 coaxially connected to the adjusting head 43 and cooperatively connected to the mounting hole 311, an outer diameter of the connecting rod 42 is smaller than an inner diameter of the outlet pipe barrel 32, so that an annular channel is formed between the connecting rod 42 and the outlet pipe barrel 32, so that gas can enter the outlet channel of the outlet valve 31, an operating rod 41 having an outer diameter larger than the inner diameter of the outlet pipe barrel 32 is connected to a lower end of the connecting rod 42, the operating rod 41 penetrates through a bottom plate of the gas box 11, and an end of the operating rod 41 can abut against an end surface of the outlet pipe barrel 32 to define a minimum flame that can be adjusted, so as to avoid that the adjusting transition cannot ignite.

This application is specific, connecting rod 42 is cylindricly, just connecting rod 42 is close to be equipped with on the outer peripheral face of the one end of regulation head 43 and surely plane 44 makes connecting rod 42 with leave the clearance between the mounting hole 311, be located connecting rod 42 with gas in the annular channel passes through between the outlet tube section 32 connecting rod 42 with clearance between the mounting hole 311 inner wall gets into adjust head 43 with clearance between the inlet port 312, and then get into in the outlet channel of air outlet valve 31, connecting rod 42's structure does not influence adjust fire lever 4 is rotatory, and does not influence connecting rod 42 with clearance size between the mounting hole 311 makes the clearance stable.

The outer peripheral surface of the operating rod 41 is a toothed surface, when the operating rod 41 abuts against the end surface of the gas outlet pipe barrel 32, gas can enter an annular channel between the connecting rod 42 and the gas outlet pipe barrel 32 through the toothed groove, so that the gas inlet process is reliable, at least one annular groove 45 is arranged on the outer periphery of the operating rod 41, a first sealing ring 6 in contact with the gun body 1 is arranged in the annular groove 45, the arrangement of the first sealing ring 6 improves the installation sealing performance of the fire adjusting rod 4, the bottom end surface of the operating rod 41 is provided with a straight groove 46, the bottom end of the operating rod 41 is inserted with an adjusting block in threaded connection with the gun body 1, and the straight groove 46 is in matched connection with the adjusting block so that the operating rod 41 can be adjusted reliably.

Preferably, the air inlet 312 is a circular hole, the adjusting head 43 is in a truncated cone shape, and the large end of the adjusting head 43 is connected to the connecting rod 42.

As shown in fig. 7 and 8, the intake assembly 5 includes an intake valve body 51, the intake valve body 51 is screwed with the bottom plate of the air box 11, an air inlet needle 52 is arranged in the gap of the air inlet valve body 51, a copper cap 54 is inserted on the air inlet valve body 51, and a gap is formed between the intake valve body 51 and the copper cap 54, the copper cap 54 has a cap hole communicated with the air box 11, the upper part of the air inlet needle 52 is inserted into the cap hole, a compression spring 55 arranged in the cap hole is propped against the air inlet needle 52, the lower part of the air inlet needle 52 is provided with a blind hole 521, the side wall of the air inlet needle 52 is provided with a side air outlet communicated with the blind hole 521, a compression sealing ring 53 is installed at a side air outlet hole of the air inlet needle 52, and in a natural state, the compression spring 55 drives the compression sealing ring 53 to be abutted against the air inlet valve body 51 by pushing the air inlet needle 52, so that the air inlet needle 52 and the air inlet valve body 51 are sealed; when the air inlet needle 52 is pushed, the compression spring 55 is compressed, the compression sealing ring 53 is in contact with the copper cap 54 at a certain distance to stop moving upwards, so that a gap is reserved between the compression sealing ring 53 and the air inlet valve body 51, the gap between the compression seal ring 53 and the intake valve body 51 allows the gap between the intake valve body 51 and the copper cap 54 and the gap between the intake valve body 51 and the intake needle 52 to pass through, so that air is discharged during inflation, the air inlet needle 52 continuously moves upwards to enable the side air outlet hole to be positioned at the outer side of the compression sealing ring 53, the side air outlet hole is communicated with the cap hole to realize air filling, wherein, a second sealing ring 7 contacted with the gun body 1 is arranged on the peripheral surface of the air inlet valve body 51, and the second sealing ring 7 is positioned on the inner side of the thread section of the air inlet valve body 51, so that the installation sealing performance of the air inlet valve body 51 and the gun body 1 is improved.

This application is concrete, the last pot head of copper cap 54 be equipped with the inner tube 56 of cap hole intercommunication, the last pot head of admission valve body 51 is equipped with outer tube 57, just inner tube 56 is higher than outer tube 57, it is right inner tube 56 with the length of outer tube 57 is selected, is convenient for utilize the gas to be located air in the gas tank 11 extrudees, because the air entrainment speed is greater than air exhaust velocity, will unable continuation air entrainment or air entrainment very slowly when the air entrainment volume reaches a definite value, realizes control air entrainment volume, makes the air entrainment volume reach the default, avoids aerifing excessively.

This application is concrete, be equipped with in the gas tank 11 and be located the sponge pipe 12 of giving vent to anger bobbin 32 outer lane, just the both ends of sponge pipe 12 support respectively and hold in the interior top surface and the interior bottom surface of gas tank 11, the setting up of sponge pipe 12 makes gaseous distribution even in gas tank 11, and flame is stable when making strike sparks.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The air inlet and outlet structure for the air box of the spray gun is characterized by comprising an air outlet component (3), a fire adjusting rod (4) and an air inlet component (5) which are all arranged on a gun body (1), wherein the air inlet component (5) is positioned on one side of the air outlet component (3), the air inlet component (5) can control the air adding amount, the air outlet component (3) comprises an air outlet valve (31) associated with an ignition device (2) and an air outlet pipe barrel (32) coaxially sleeved and connected with the air outlet valve (31), the air outlet valve (31) is provided with a mounting hole (311) positioned in the air outlet pipe barrel (32), the bottom of the mounting hole (311) is provided with an air inlet hole (312) communicated with an air outlet channel of the air outlet valve (31), the adjusting head (43) of the fire adjusting rod (4) is inserted into the air inlet hole (312) in an adjustable depth mode, and the lower end of the fire adjusting rod (4) penetrates through the bottom plate of the air box (11) of the gun body (1), and the lower end of the fire adjusting rod (4) is operated to adjust the gas output.

2. The gas inlet and outlet structure for the gas tank of the spray gun according to claim 1, wherein the flame adjusting rod (4) further comprises a connecting rod (42) coaxially connected with the adjusting head (43) and cooperatively connected with the mounting hole (311), the outer diameter of the connecting rod (42) is smaller than the inner diameter of the gas outlet pipe barrel (32), the lower end of the connecting rod (42) is connected with an operating rod (41) with the outer diameter larger than the inner diameter of the gas outlet pipe barrel (32), and the operating rod (41) penetrates through the bottom plate of the gas tank (11).

3. The air inlet and outlet structure for the airbox of the spray gun as claimed in claim 2, wherein the connecting rod (42) is cylindrical, and a tangential plane (44) is provided on the outer peripheral surface of one end of the connecting rod (42) close to the adjusting head (43) to leave a gap between the connecting rod (42) and the mounting hole (311).

4. The air inlet and outlet structure for the air box of the spray gun as claimed in claim 2, characterized in that the outer peripheral surface of the operating rod (41) is a toothed surface, at least one annular groove (45) is arranged on the outer peripheral surface of the operating rod (41), a first sealing ring (6) contacting with the gun body (1) is arranged in the annular groove (45), and a straight groove (46) is arranged on the bottom end surface of the operating rod (41).

5. The air inlet and outlet structure for the air box of the spray gun as recited in claim 2, characterized in that the adjusting head (43) is in a shape of a truncated cone, and the large end of the adjusting head (43) is connected with the connecting rod (42).

6. The air inlet and outlet structure for the air box of the spray gun as claimed in claim 1, wherein the air inlet assembly (5) comprises an air inlet valve body (51), an air inlet needle (52) is arranged in a gap in the air inlet valve body (51), a copper cap (54) is inserted into the air inlet valve body (51), a gap is formed between the air inlet valve body (51) and the copper cap (54), the copper cap (54) is provided with a cap hole communicated with the air box (11), the upper part of the air inlet needle (52) is inserted into the cap hole, a compression spring (55) arranged in the cap hole is abutted against the air inlet needle (52), the lower part of the air inlet needle (52) is provided with a blind hole (521), the side wall of the air inlet needle (52) is provided with a side air outlet hole communicated with the blind hole (521), and a compression sealing ring (53) is arranged at the side air outlet hole of the air inlet needle (52), in a natural state, the compression spring (55) drives the compression sealing ring (53) to be abutted against the air inlet valve body (51) by pushing the air inlet needle (52) so as to realize sealing between the air inlet needle (52) and the air inlet valve body (51); when the air inlet needle (52) is pushed, the compression spring (55) is compressed, and the side air outlet hole is communicated with the cap hole, so that air filling is realized.

7. The air inlet and outlet structure for the gas tank of the spray gun as claimed in claim 6, characterized in that the upper end of the copper cap (54) is sleeved with an inner tube (56) communicated with the cap hole, the upper end of the air inlet valve body (51) is sleeved with an outer tube (57), and the inner tube (56) is higher than the outer tube (57).

8. The air inlet and outlet structure for the air box of the spray gun as set forth in claim 6 is characterized in that a second sealing ring (7) contacting with the gun body (1) is provided on the outer peripheral surface of the air inlet valve body (51).

9. An air inlet and outlet structure for a lance air box according to any one of claims 1 to 8, characterized in that a sponge tube (12) is provided in the air box (11) at the outer periphery of the outlet tube (32).