CN219571987U - Rotary switch structure for controlling multiple air passages - Google Patents
Rotary switch structure for controlling multiple air passages Download PDFInfo
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- CN219571987U CN219571987U CN202320517219.3U CN202320517219U CN219571987U CN 219571987 U CN219571987 U CN 219571987U CN 202320517219 U CN202320517219 U CN 202320517219U CN 219571987 U CN219571987 U CN 219571987U
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Abstract
The utility model discloses a rotary switch structure for controlling multiple air passages, which comprises a main body and a control switch, wherein the main body is provided with three channels which are mutually communicated, one of the channels is internally provided with an air inlet channel, and the outer end part of the air inlet channel is provided with an air source interface; the inner side of one channel is provided with an ignition air channel and a working air channel, the outer side of the channel is provided with an air outlet channel, the inner side end part of the air outlet channel is communicated with the ignition air channel and the working air channel, and the ignition air channel and the working air channel are both communicated with the air inlet channel; the rest channels are used for installing control switches, and a working air channel and an ignition air channel are sequentially arranged along the advancing direction of the control switches when the control switches lock air. The ignition air passage and the communication state of the working air passage and the air inlet passage are controlled by the control switch, so that the stability of air transmission is ensured, and the ignition success rate is improved. Meanwhile, the utility model has the advantages of simple structure, convenient operation, more beautiful and concise appearance, effective reduction of manufacturing cost and the like.
Description
Technical Field
The utility model relates to the field of heating torch accessories, in particular to a rotary switch structure for controlling multiple air passages.
Background
At present, the switch of the heating torch at home and abroad is generally divided into three types, the first type is a single-opening rotary hand wheel design, and the switch only plays a role in opening and closing, and the ignition success rate of the heating torch is not high due to the fact that the stable gas quantity cannot be output; the second is to apply the two-way design of the lever principle, set up two switches, each switch only plays the role of controlling a gas-supply channel, need to hold the hand of the torch and catch the bar-shaped switch with other fingers besides thumb while operating, the manual control tolerance size, difficult and can't carry on the steady gas supply yet; the third is the structure that is provided with three switches is actual, adds a master switch on the mailing of second kind design, and the gas is carried through master switch control during operation, but this design still can't guarantee stable air feed, and the structure is more complicated.
Disclosure of Invention
It is an object of the present utility model to provide a rotary switch structure for controlling multiple air passages, solving one or more of the above-mentioned technical problems.
The utility model provides a rotary switch structure for controlling multiple air passages, which comprises a main body and a control switch, wherein the main body is provided with three mutually communicated channels, namely a first channel, a second channel and a third channel,
wherein an air inlet channel is arranged in the first channel, and an air source interface is arranged at the outer end part of the air inlet channel; the inner side of the second channel is provided with an ignition air channel and a working air channel, the outer side of the second channel is provided with an air outlet channel, the inner side of the air outlet channel is communicated with the ignition air channel and the working air channel, and the ignition air channel and the working air channel are communicated with the air inlet channel and the third channel;
the third channel is used for installing a control switch, the control switch is used for controlling the communication states of the ignition air channel and the working air channel with the air inlet channel, the working air channel and the ignition air channel are sequentially arranged along the advancing direction when the control switch locks air, and the working air channel is sealed firstly and then the ignition air channel is sealed when the air is locked; when in ventilation, the ignition air passage is opened first, and then the working air passage is opened.
In some embodiments, the air inlet channel comprises an air inlet channel and an auxiliary air inlet channel which are communicated with each other, the air source interface is arranged at the outer end part of the air inlet channel, and the inner side of the air inlet channel is communicated with the second channel and the third channel through the auxiliary air inlet channel.
In some embodiments, the inner side of the second channel is provided with a sealing plate, two through holes are formed in the sealing plate, one through hole is used as an ignition air channel, the other through hole is used as a working air channel, and parts of the whole structure are few, and the structure is simple.
In some embodiments, two through holes, namely a first through hole and a second through hole, are formed in the inner side of the second channel, wherein the first through hole is used for being connected with a current limiting piece, the current limiting piece is provided with a current limiting through hole, the current limiting through hole is used as an ignition air channel, and the second through hole is used as a working air channel.
In some embodiments, the current limiting piece is cylindrical, the current limiting piece with adopt detachable connection between the inner wall of first through-hole, be convenient for adjust the current limiting piece that is provided with different apertures according to the demand and change, also be convenient for clear up the current limiting piece, be equipped with regular polygon's recess on the current limiting piece outside terminal surface, the recess with the current limiting piece is coaxial to be set up, is convenient for dismouting current limiting piece through the setting of recess, one side of current limiting through-hole with the recess intercommunication, the opposite side and inlet channel, the third passageway intercommunication of current limiting through-hole.
In some embodiments, an auxiliary air passage is arranged on the inner side end surface of the flow limiting piece, the flow limiting through hole is communicated with the air inlet passage and the third passage through the auxiliary air passage, the inner diameter of the auxiliary air passage is larger than that of the flow limiting through hole and smaller than that of the air inlet passage, and the transition effect is achieved in the process that gas enters the flow limiting through hole from the air inlet passage.
In some embodiments, the auxiliary air intake channel, the auxiliary air channel, the flow restricting through hole, and the groove are coaxially disposed.
In some embodiments, the outboard end of the gas outlet channel is connected to a nozzle, and the inner diameter of the firing channel is inversely proportional to the length of the nozzle.
In some embodiments, the control switch is a rotary switch.
In some embodiments, the control switch includes case and regulating hand wheel, the third passageway with the case adaptation, the cross-section of third passageway is inside narrow outside wide "protruding" font structure, the case inserts in the third passageway, be equipped with the annular groove on the case, be equipped with the sealing washer in the annular groove, when the control switch was closed, the inboard tip of case and the inner wall butt of the junction of first passageway, second passageway and third passageway separate first passageway and second passageway, the inboard tip of working air flue with the inboard tip of ignition air flue all with the case is connected.
The rotary switch structure for controlling the multiple air passages has the advantages of simple structure, concise appearance, low manufacturing cost, capability of stably controlling the output air quantity, improvement of the ignition success rate and the like.
Drawings
FIG. 1 is a schematic cross-sectional view of a rotary switch structure for controlling multiple air passages according to some embodiments of the present utility model;
FIG. 2 is a schematic illustration of a flow restrictor in accordance with some embodiments of the present utility model;
FIG. 3 is a schematic cross-sectional view of a flow restrictor in accordance with some embodiments of the present utility model;
fig. 4 is a schematic cross-sectional view of a rotary switch structure for controlling multiple air passages according to other embodiments of the present utility model.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
Referring to fig. 1 to 4, the rotary switch structure for controlling multiple air passages described in this embodiment includes a main body 1 and a control switch, wherein three channels, a first channel, a second channel and a third channel,
wherein an air inlet channel is arranged in the first channel, and an air source interface is arranged at the outer end part of the air inlet channel; the inner side of the second channel is provided with an ignition air channel and a working air channel, the outer side of the second channel is provided with an air outlet channel 105, the inner side of the air outlet channel 105 is communicated with the ignition air channel and the working air channel, the other side of the ignition air channel is communicated with the air inlet channel and the third channel, and the other side of the working air channel is also communicated with the air inlet channel and the third channel;
the third channel is used for installing a control switch, the control switch is utilized to control the communication state of the ignition air channel, the working air channel and the air inlet channel, and the working air channel and the ignition air channel are sequentially arranged along the advancing direction of the control switch when the control switch locks air.
The air inlet channel comprises an air inlet channel 101 and an auxiliary air inlet channel 102 which are communicated with each other, an air source interface is arranged at the outer side end part of the air inlet channel 101, and the inner side of the air inlet channel 101 is communicated with the second channel and the third channel through the auxiliary air inlet channel 102.
In some embodiments, in combination with what is shown in fig. 4, a sealing plate 106 is disposed on the inner side of the second channel, two through holes are directly formed on the sealing plate 106, one through hole 107 is used as an ignition air channel, the other through hole 108 is used as a working air channel, and when the control switch is closed, an end face of the sealing plate 106, which is close to one side of the air inlet channel, is attached to the valve core 2 of the control switch.
In some embodiments, in combination with what is shown in fig. 1 to 3, two through holes, namely, a first through hole 103 and a second through hole 104, are formed on the inner side of the second channel, wherein the first through hole 103 is used for connecting the current limiting piece 5, the current limiting piece 5 is provided with a current limiting through hole 502, the current limiting through hole 502 is used as an ignition air channel, and the second through hole 104 is used as a working air channel. The current limiting member 5 is cylindrical, and the current limiting member 5 is detachably connected with the inner wall of the first through hole 103, for example: adopt threaded connection between the inner wall of restriction 5 and first through-hole, be equipped with regular polygon's recess 501 on the terminal surface in restriction 5 outside, say: as shown in fig. 3, a regular hexagonal groove 501 is formed in the groove 501 coaxially with the flow restrictor 5, one side of the flow restrictor 502 communicates with the groove 501, and the other side of the flow restrictor 502 communicates with the air inlet channel and the third channel.
In some embodiments, an auxiliary air passage 503 is arranged on the inner side end surface of the flow limiting piece 5, the flow limiting through hole 502 is communicated with the air inlet channel and the third channel through the auxiliary air passage 503, and the inner diameter of the auxiliary air passage 503 is larger than the inner diameter of the flow limiting through hole 502 and smaller than the inner diameter of the air inlet channel. The auxiliary air intake duct 102, the auxiliary air duct 503, the flow limiting through hole 502, and the groove 501 are coaxially arranged.
The outer end of the air outlet channel is connected with the spray pipe, and the inner diameter of the ignition air channel is inversely proportional to the length of the spray pipe.
The control switch is rotary switch, the control switch includes case 2 and regulating handle 3, the outside tip of case 2 wears out the third passageway and is connected with regulating handle 3, drive case 2 rotatory through twisting regulating handle 3, the third passageway is with case 2 adaptation, the cross-section of third passageway is interior narrow outside wide "protruding" font structure, case 2 inserts in the third passageway, and be close to threaded connection between the inner wall of regulating handle 3's one side and the third passageway on the case 2, be equipped with annular groove on the case 2, be equipped with sealing washer 4 in the annular groove, the sealed effect between the inner wall of reinforcing case 2 and third passageway through setting up of sealing washer 4. When the control switch is turned off, the inner side end part of the valve core 2 is abutted with the inner wall of the joint of the first channel, the second channel and the third channel, the first channel and the second channel are separated, and the inner side end part of the working air channel and the inner side end part of the ignition air channel are connected with the valve core 2.
When in ignition, the regulating hand wheel 3 is screwed to enable the control switch to enter an opening stroke until only the ignition air passage is opened, the screwing of the regulating hand wheel 3 is stopped, at the moment, two ends of the ignition air passage are respectively communicated with the air inlet passage and the air outlet passage 105, and an air source is output through the ignition air passage, and at the moment, ignition operation is carried out; after the ignition operation is finished and the working state is entered, the regulating hand wheel 3 is continuously screwed to enable the control switch to continuously open the stroke until the working air passage is opened, the screwing of the regulating hand wheel 3 is stopped, at the moment, both ends of the ignition air passage and the working air passage are communicated with the air inlet passage and the air outlet passage 105, and the air source is output through the ignition air passage and the working air passage to perform normal work. When the valve is closed, the regulating hand wheel 3 is reversely screwed to enable the control switch to enter a closing stroke, the working air passage and the ignition air passage are completely separated from the air inlet passage through the valve core 2 in sequence, and the inner side ends of the working air passage and the ignition air passage are closed by the valve core 2. The rotary switch structure for controlling the multiple air passages can be used for heating torches (liquefied gas flame guns) and also can be applied to equipment such as welding and cutting tools using fuel gas.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (10)
1. The rotary switch structure for controlling multiple air passages is characterized by comprising a main body (1) and a control switch, wherein the main body (1) is provided with three mutually communicated channels, namely a first channel, a second channel and a third channel,
wherein an air inlet channel is arranged in the first channel, and an air source interface is arranged at the outer end part of the air inlet channel;
the inner side of the second channel is provided with an ignition air channel and a working air channel, the outer side of the second channel is provided with an air outlet channel, the inner side of the air outlet channel is communicated with the ignition air channel and the working air channel, and the ignition air channel and the working air channel are communicated with the air inlet channel and the third channel;
the third channel is used for installing a control switch, the control switch is utilized to control the communication state of the ignition air channel, the working air channel and the air inlet channel, and the working air channel and the ignition air channel are sequentially arranged along the advancing direction when the control switch locks air.
2. The rotary switch structure for controlling multiple air passages according to claim 1, wherein the air intake passage includes an air intake passage (101) and an auxiliary air intake passage (102) communicating with each other, the air source interface is provided at an outer end portion of the air intake passage (101), and an inner side of the air intake passage (101) communicates with the second passage and the third passage through the auxiliary air intake passage (102).
3. The rotary switch structure for controlling multiple air passages according to claim 2, wherein a sealing plate is arranged on the inner side of the second channel, and two through holes are formed in the sealing plate, wherein one through hole serves as an ignition air passage, and the other through hole serves as a working air passage.
4. The rotary switch structure for controlling multiple air passages according to claim 2, wherein two through holes, namely a first through hole (103) and a second through hole (104), are formed in the inner side of the second channel, the first through hole (103) is used for being connected with a current limiting piece (5), a current limiting through hole (502) is formed in the current limiting piece (5), the current limiting through hole (502) is used as an ignition air passage, and the second through hole (104) is used as a working air passage.
5. The rotary switch structure for controlling multiple air passages according to claim 4, wherein the current limiting member (5) is cylindrical, the current limiting member (5) is detachably connected with the inner wall of the first through hole (103), a regular polygon groove (501) is formed in the outer side end surface of the current limiting member (5), the groove (501) is coaxially arranged with the current limiting member (5), one side of the current limiting through hole (502) is communicated with the groove (501), and the other side of the current limiting through hole (502) is communicated with the air inlet passage and the third passage.
6. The rotary switch structure for controlling multiple air passages according to claim 5, wherein an auxiliary air passage (503) is arranged on the inner side end surface of the flow limiting piece (5), the flow limiting through hole (502) is communicated with the air inlet passage and the third passage through the auxiliary air passage (503), and the inner diameter of the auxiliary air passage (503) is larger than the inner diameter of the flow limiting through hole (502) and smaller than the inner diameter of the air inlet passage.
7. The rotary switch structure for controlling multiple air passages according to claim 6, wherein the auxiliary air intake passage (102), the auxiliary air passage (503), the flow limiting through hole (502), and the groove (501) are coaxially arranged.
8. The rotary switch structure for controlling multiple gas passages according to any one of claims 1-4, wherein an outboard end of the gas outlet passage is connected to a nozzle, and an inner diameter of the ignition gas passage is inversely proportional to a length of the nozzle.
9. The rotary switch structure for controlling multiple airways of claim 1, characterized in that the control switch is a rotary switch.
10. The rotary switch structure for controlling multiple air passages according to claim 9, wherein the control switch comprises a valve core (2) and an adjusting hand wheel (3), the third passage is matched with the valve core (2), the cross section of the third passage is of a convex structure with the inner narrow and the outer wide, the valve core (2) is inserted into the third passage, an annular groove is formed in the valve core (2), a sealing ring (4) is arranged in the annular groove, when the control switch is closed, the inner side end part of the valve core (2) is abutted with the inner wall of the joint of the first passage, the second passage and the third passage to separate the first passage and the second passage, and the inner side end part of the working air passage and the inner side end part of the ignition air passage are connected with the valve core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320517219.3U CN219571987U (en) | 2023-03-14 | 2023-03-14 | Rotary switch structure for controlling multiple air passages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320517219.3U CN219571987U (en) | 2023-03-14 | 2023-03-14 | Rotary switch structure for controlling multiple air passages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219571987U true CN219571987U (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320517219.3U Active CN219571987U (en) | 2023-03-14 | 2023-03-14 | Rotary switch structure for controlling multiple air passages |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219571987U (en) |
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2023
- 2023-03-14 CN CN202320517219.3U patent/CN219571987U/en active Active
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