CN112833222A

CN112833222A - Temperature control change-over valve

Info

Publication number: CN112833222A
Application number: CN202110174920.5A
Authority: CN
Inventors: 谢启标
Original assignee: Zhongshan Leetron Gas Appliance Co ltd
Current assignee: Zhongshan Leetron Gas Appliance Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-05-25

Abstract

The invention discloses a temperature control change-over valve, which comprises: the temperature control valve comprises a valve body, a main valve core, a valve cavity, a temperature control mechanism and a valve rod, wherein the valve body is provided with an air inlet, a first outlet and a second outlet; the valve rod can drive the main valve core to rotate so that the first outlet and the second outlet are communicated with the air inlet, or the valve rod can drive the main valve core to rotate so that the temperature control air groove is communicated with the air inlet. Through the switching of the main valve core to the gas channel, the gas can flow out from different channels, and the gas circulation can be selected to be straight-through with high firepower or intelligent temperature control ventilation, so that the temperature control switching valve can simply and directly switch the advantages of the valve used by the stove, and the stove can directly meet various different use requirements.

Description

Temperature control change-over valve

Technical Field

The invention relates to the field of valves, in particular to a temperature control change-over valve.

Background

As is well known, there are many kinds of ovens in life, such as barbecue ovens and ovens. Different stoves need to be matched with gas valves with different flow rates and different weights, for example, a barbecue oven needs to have large firepower, and a flameout protection valve needs to be matched; the fire power required by the oven is lower, and the oven can be matched with equipment such as a temperature control valve and the like, so that the cooking is more convenient. However, for the multi-functional stoves featuring all generations, how to switch between different valves is always a problem that is difficult to solve.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a temperature control change-over valve which can be simply changed over to use.

According to an embodiment of the first aspect of the present invention, a temperature control switch valve includes: the temperature control valve comprises a valve body, a main valve core, a valve cavity and a temperature control mechanism, wherein the valve body is provided with an air inlet, a first outlet and a second outlet; the main valve core is rotatably arranged in the valve body, a through air groove is formed in the main valve core, and the main valve core can drive the through air groove to rotate so that the air inlet, the first outlet and the second outlet are communicated through the through air groove; the valve cavity is arranged in the valve body, the main valve core is provided with a temperature control air groove, the main valve core can drive the temperature control air groove to rotate so that the air inlet is communicated with the valve cavity through the temperature control air groove, and the second outlet is communicated with the valve cavity; the temperature control mechanism comprises a temperature probe and a plug assembly which are connected with each other, the plug assembly is located in the valve cavity, and the temperature probe can drive the plug assembly to move and change the gas circulation area of the valve cavity.

The temperature control change-over valve provided by the embodiment of the invention has at least the following beneficial effects: when the main valve core is rotated through the valve rod, the gas connection can be switched. When the valve rod drives the valve core to rotate so that the first air groove and the second air groove are communicated with the air inlet, the fuel gas can directly flow to the first outlet and the second outlet from the air inlet, and therefore the valve core can be adapted to a stove requiring a plurality of valves, such as a barbecue oven. And when the valve rod drives the valve core to rotate so as to enable the temperature control air groove to be communicated with the air inlet, the fuel gas can sequentially pass through the air inlet, the temperature control air groove and the valve cavity and finally can flow out of the second outlet. The temperature control mechanism in the valve cavity can automatically control the gas flow area in the valve cavity according to the external temperature, so that the temperature control effect on the firepower is realized. The temperature control type gas channel can be suitable for ovens with simple valves and relatively low temperature.

Through the switching of the main valve core to the gas channel, the gas can flow out from different channels, and the gas can be selected to flow through a high-firepower straight-through or intelligent temperature control ventilation mode, so that the temperature control change-over valve of the embodiment of the invention can simply and directly switch the advantages of the valve used by the stove, and the stove can directly meet various different use requirements. By using the temperature control change-over valve, the same stove can be directly switched to different functions, for example, the function of direct fire baking is switched to the function of automatic temperature control, so that a user can more conveniently use the stove without changing a valve, and the market competitiveness of the stove adopting the temperature control change-over valve can be greatly improved.

According to some embodiments of the invention, the plug assembly comprises a sealing cover and an expansion piece which are connected with each other, and the expansion piece is connected with the temperature probe and can expand and contract to drive the sealing cover to move; the valve cavity comprises a connecting part, the temperature control air groove is connected with the valve cavity through the connecting part, and the sealing cover can be close to and seal the connecting part or be far away from the connecting part.

According to some embodiments of the invention, the telescopic member is a flexible balloon, a driving liquid is arranged in the telescopic member, the temperature probe is in contact with the driving liquid and can transmit temperature to the driving liquid, and the driving liquid can expand with heat and contract with cold.

According to some embodiments of the invention, a temperature control channel is arranged in the valve body, and two ends of the temperature control channel are respectively communicated with the valve cavity and the second outlet.

According to some embodiments of the invention, the through air slot comprises a first air slot through which the air inlet communicates with the first outlet and a second air slot through which the air inlet communicates with the second outlet.

According to some embodiments of the invention, the valve cavity comprises a connecting part, the temperature control air groove is connected with the valve cavity through the connecting part, a valve port is arranged on the connecting part, and the plug assembly can seal the valve port so as to isolate the connecting part from the valve cavity; a heat preservation mechanism is arranged in the connecting portion and can communicate the connecting portion and the valve cavity when the plug assembly seals the valve port.

According to some embodiments of the invention, the temperature retention mechanism comprises a first passage and a second passage disposed within the valve body, the connection communicating with the first passage, the valve chamber communicating with the second passage; the valve body is internally provided with a control assembly which can connect or disconnect the first channel and the second channel.

According to some embodiments of the present invention, the control assembly includes a first valve core rotatably disposed in the first passage, a first air vent is disposed in the first valve core, one end of the first air vent is located on an end surface of the first valve core, and the other end of the first air vent is located on a side wall of the first valve core; and two ends of the first air guide hole are respectively communicated with the first channel and the second channel.

According to some embodiments of the invention, a second spool is disposed in the second passage, the second spool being capable of rotationally adjusting a cross-sectional flow area of the second passage.

According to some embodiments of the invention, at least three inlet passages are provided in the valve body, each inlet passage is communicated with the inlet port, at least one inlet passage is communicated with the first air groove, at least one inlet passage is communicated with the second air groove, and at least one inlet passage is communicated with the temperature-controlled air groove.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a temperature controlled switching valve according to an embodiment of the present invention;

fig. 2 is a cross-sectional schematic view of a through state of the temperature-controlled switching valve shown in fig. 1;

fig. 3 is a schematic sectional view of a temperature-controlled passage of the temperature-controlled switching valve shown in fig. 1;

fig. 4 is a cross-sectional schematic view of a temperature controlled state of the temperature controlled switching valve shown in fig. 1;

FIG. 5 is a schematic view of a valve chamber of the temperature controlled switching valve shown in FIG. 1;

FIG. 6 is a schematic diagram of the connection of a second outlet of the temperature controlled switching valve shown in FIG. 1;

FIG. 7 is a schematic view of a temperature maintaining mechanism of the temperature controlled diverter valve shown in FIG. 1;

FIG. 8 is an enlarged schematic view at A shown in FIG. 7;

fig. 9 is a schematic diagram of a main spool of the temperature controlled switching valve shown in fig. 1.

Reference numerals: 100 is a valve body, 120 is an air inlet, 125 is an air inlet channel, 130 is a first outlet, 135 is an injection groove, 140 is a second outlet, 150 is a valve cavity, 160 is a connecting part, 170 is a first channel, 175 is a second channel, and 180 is a temperature control channel;

200 is a valve rod;

300 is a main valve core, 310 is a first air groove, 315 is a through air groove, 320 is a second air groove, 330 is a temperature control air groove, 335 is a communicating hole, 350 is an injection hole, and 370 is a sliding groove;

400 connecting column, 450 is a positioning pin;

610 is a second valve core, 620 is a first valve core;

800 is a plug component, 810 is a fixed part, 820 is a positioning part, 830 is a return spring, 840 is a sealing cover, 850 is an expansion part, and 860 is a sealing ring;

900 is a temperature control mechanism, 910 is a temperature probe, 950 is an infusion tube.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, a temperature controlled switching valve includes: the temperature control valve comprises a valve body 100, a main valve element 300, a valve cavity 150 and a temperature control mechanism 900, wherein the valve body 100 is provided with an air inlet 120, a first outlet 130 and a second outlet 140; the main valve element 300 is rotatably disposed in the valve body 100, a through air groove 315 is disposed on the main valve element 300, and the main valve element 300 can drive the through air groove 315 to rotate, so that the air inlet 120, the first outlet 130 and the second outlet 140 are communicated through the through air groove 315; the valve cavity 150 is arranged in the valve body 100, the main valve element 300 is provided with a temperature control air groove 330, the main valve element 300 can drive the temperature control air groove 330 to rotate so that the air inlet 120 is communicated with the valve cavity 150 through the temperature control air groove 330, and the second outlet 140 is communicated with the valve cavity 150; the temperature control mechanism 900 comprises a temperature probe 910 and a plug assembly 800 which are connected with each other, the plug assembly 800 is located in the valve cavity 150, and the temperature probe 910 can drive the plug assembly 800 to move and change the gas flow area of the valve cavity 150. When main poppet 300 is rotated by valve stem 200, the gas connection can be switched. When the valve rod 200 drives the valve core to rotate so that the straight-through air groove 315 is communicated with the air inlet 120, the fuel gas can flow from the air inlet 120 to the first outlet 130 and the second outlet 140, so that the gas stove can be adapted to a stove requiring a plurality of valves, such as a barbecue stove. When the valve rod 200 drives the valve core to rotate so as to communicate the temperature control air groove 330 with the air inlet 120, the fuel gas will pass through the air inlet 120, the temperature control air groove 330 and the valve cavity 150 in sequence, and finally can flow out from the second outlet 140. The temperature control mechanism 900 in the valve cavity 150 can automatically control the gas flow area in the valve cavity 150 according to the external temperature, thereby realizing the temperature control effect on the firepower. The temperature control type gas channel can be suitable for ovens with simple valves and relatively low temperature. Through the switching of the main valve element 300 to the gas channel, the gas can flow out from different channels, and the gas can be selected to flow through a high-firepower straight-through or intelligent temperature control ventilation mode, so that the temperature control switching valve of the embodiment of the invention can simply and directly switch the advantages of the valve used by the stove, and the stove can directly meet various different use requirements. By using the temperature control change-over valve, the same stove can be directly switched to different functions, for example, the function of direct fire baking is switched to the function of automatic temperature control, so that a user can more conveniently use the stove without changing a valve, and the market competitiveness of the stove adopting the temperature control change-over valve can be greatly improved.

Specifically, referring to fig. 5 and 6, a temperature control passage 180 is disposed in the valve body 100, and one end of the temperature control passage 180 is communicated with the inner wall of the valve cavity 150, and the other end is communicated with the second outlet 140.

Specifically, main poppet 300 has valve stem 200 attached thereto.

In some embodiments, referring to fig. 2, the plug assembly 800 includes a cover 840 and a telescoping member 850 connected to each other, the telescoping member 850 being connected to the temperature probe 910 and being capable of telescoping to move the cover 840; the valve chamber 150 comprises a connecting part 160, the temperature control air groove 330 is connected with the valve chamber 150 through the connecting part 160, and the sealing cover 840 can be close to and close the connecting part 160 or far away from the connecting part 160. The telescoping member 850 can telescope upon receiving temperature information from the temperature probe 910 and simply and directly move the cover 840 closer to the connector 160 to close the connector 160 or away from the connector 160 to allow gas in the connector 160 to move into the valve chamber 150.

In some embodiments, the telescoping member 850 is a flexible balloon, and the telescoping member 850 has a driving fluid disposed therein, and the temperature probe 910 is in contact with and capable of transmitting a temperature to the driving fluid, which is capable of expanding with heat and contracting with cold. The driving fluid will expand and contract with heat after receiving the heat from the temperature probe 910, so that the expansion member 850 expands and contracts. The expansion with heat and contraction with cold of the driving liquid can not only directly and effectively drive the expansion piece 850 to expand, but also has the characteristic of directly changing the expansion amount of the expansion piece 850 according to the temperature change.

Specifically, the driving liquid may be mercury. Of course, the drive liquid may consist of other liquids, such as water. The specific implementation manner may be adjusted according to the actual situation, and is not limited herein.

In some embodiments, referring to fig. 2, one end of the telescoping member 850 is provided with a positioning member 820, and a cover 840 is attached to the other end of the telescoping member 850; a return spring 830 is disposed between the positioning member 820 and the cover 840. The positioning member 820 can position the telescopic member 850 to ensure that the telescopic member 850 can accurately drive the cover 840 to close the connecting portion 160 when it is telescopic. The return spring 830 can ensure that the cover 840 can stably rebound during cooling, so as to ensure rapid communication between the connecting portion 160 and the valve chamber 150.

Specifically, the temperature probe 910 is connected to a fluid line 950, and the fluid line 950 is filled with a driving fluid and is communicated with the telescopic member 850. The end of the fluid line 950 remote from the temperature probe 910 is provided with a fixing member 810, and the fixing member 810 and the positioning member 820 cooperate to fix one end of the telescopic member 850 in the valve chamber 150.

In some embodiments, referring to fig. 4 and 9, the telescoping member 850 is provided with the connecting column 400, and the cap 840 is sleeved on the connecting column 400; the main valve element 300 is provided with a sliding groove 370, the connecting column 400 is provided with a positioning pin 450, and the positioning pin 450 is slidably mounted in the sliding groove 370. The alignment pin 450 on the attachment post 400 is able to engage and position the sliding groove 370 on the main poppet 300 to ensure that the cap 840 is able to move accurately to close the connection 160.

Specifically, a sealing ring 860 is disposed between the connecting column 400 and the cap 840.

In certain embodiments, referring to fig. 9, the through air slot 315 includes a first air slot 310 and a second air slot 320, the air inlet 120 communicating with the first outlet 130 through the first air slot 310, the air inlet 120 communicating with the second outlet 140 through the second air slot 320.

Specifically, an injection groove 135 is formed in the valve body 100, and the injection groove 135 is communicated with the first outlet 130. When the main spool 300 rotates, the first air groove 310 can rotate to communicate with both the bleed groove 135 and the air inlet 120.

In some embodiments, referring to fig. 4, the valve chamber 150 includes a connecting portion 160, the temperature-controlled air groove 330 is connected to the valve chamber 150 through the connecting portion 160, a valve port is disposed on the connecting portion 160, and the plug assembly 800 can close the valve port to isolate the connecting portion 160 from the valve chamber 150; a heat preservation mechanism is arranged in the connecting portion 160, and the heat preservation mechanism can communicate the connecting portion 160 and the valve cavity 150 when the plug assembly 800 closes the valve port. The thermal insulation mechanism may be such that when the valve port is closed, the gas in the connecting portion 160 can still flow into the valve chamber 150 through the thermal insulation mechanism and finally flow out through the second passage 175. The heat preservation mechanism can provide the function of small fire heat preservation for the valve utensil to satisfy various user demands.

Specifically, an injection hole 350 is provided in the main valve element 300, a communication hole 335 is provided in the temperature control gas groove 330, and both ends of the communication hole 335 are respectively communicated with the temperature control gas groove 330 and the injection hole 350. The injection hole 350 is directly communicated with the connection part 160.

In certain embodiments, referring to fig. 7, the thermal mechanism includes a first passage 170 and a second passage 175 disposed within the valve body 100, the connection 160 is in communication with the first passage 170, and the valve chamber 150 is in communication with the second passage 175; a control assembly capable of connecting or disconnecting the first passage 170 and the second passage 175 is provided in the valve body 100. When the control assembly allows the first passage 170 and the second passage 175 to communicate, the combustion gas may flow from the connection portion 160, through the first passage 170, the second passage 175, and the valve chamber 150 in sequence, and finally to the second outlet 140. At the same time, the control assembly can also seal off the first passage 170 and the second passage 175, thereby preventing air leakage and the like when the oven is turned off.

In some embodiments, referring to fig. 8, the control assembly includes a first valve core 620 rotatably disposed in the first passage 170, a first air vent is disposed in the first valve core 620, one end of the first air vent is located on an end surface of the first valve core 620, and the other end is located on a side wall of the first valve core 620; both ends of the first air-guide hole communicate with the first passage 170 and the second passage 175, respectively. When the first valve core 620 rotates to the first gas guide hole on the side surface to communicate with the first channel 170, the first gas guide hole can receive the gas from the first channel 170, so as to transmit the gas to the second channel 175, and further, the first channel 170 and the second channel 175 are communicated. When the first valve core 620 rotates to close the first gas guide hole on the side surface of the first valve core and the first channel 170, the first gas guide hole and the first channel 170 are disconnected from each other, so that the first channel 170 and the second channel 175 can be simply and directly sealed and isolated. The first and

second passages

170 and 175 can be closed and opened by rotating the first valve core 620, thereby having an advantage of simple control.

In certain embodiments, referring to fig. 7, a second spool 610 is disposed within the second passage 175, the second spool 610 being capable of rotationally adjusting the cross-sectional flow area of the second passage 175. The maximum cross-sectional flow area of different fuel gases is different. Rotation of the second valve core 610 will increase or decrease the cross-sectional flow area within the second passage 175 to accommodate different combustion gases.

In some embodiments, referring to fig. 3, at least three inlet passages 125 are disposed within the valve body 100, each inlet passage 125 is in communication with an inlet port 120, at least one inlet passage 125 is in communication with a first air slot 310, at least one inlet passage 125 is in communication with a second air slot 320, and at least one inlet passage 125 is in communication with a temperature controlled air slot 330. The plurality of air inlet channels 125 are respectively communicated with the first air groove 310, the second air groove 320 and the temperature control air groove 330, so that the gas can be orderly guided into the first air groove 310, the second air groove 320 and the temperature control air groove 330, the connection between the gas and the first outlet 130 and the second outlet 140 is more stable, and the problems of turbulence and the like of the gas in the valve body 100 are avoided.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A temperature controlled diverter valve, comprising:

the valve comprises a valve body (100), wherein an air inlet (120), a first outlet (130) and a second outlet (140) are formed in the valve body (100);

a main valve element (300) rotatably disposed in the valve body (100), a through air groove (315) is disposed on the main valve element (300), the main valve element (300) can drive the through air groove (315) to rotate, so that the air inlet (120), the first outlet (130) and the second outlet (140) are communicated through the through air groove (315);

the valve cavity (150) is arranged in the valve body (100), the main valve core (300) is provided with a temperature control air groove (330), the main valve core (300) can drive the temperature control air groove (330) to rotate so that the air inlet (120) is communicated with the valve cavity (150) through the temperature control air groove (330), and the second outlet (140) is communicated with the valve cavity (150);

the temperature control mechanism (900) comprises a temperature probe (910) and a plug assembly (800) which are connected with each other, the plug assembly (800) is located in the valve cavity (150), and the temperature probe (910) can drive the plug assembly (800) to move and change the gas flow area of the valve cavity (150).

2. The temperature-controlled switching valve according to claim 1, wherein:

the plug assembly (800) comprises a sealing cover (840) and an expansion piece (850) which are connected with each other, and the expansion piece (850) is connected with the temperature probe (910) and can expand and contract to drive the sealing cover (840) to move; the valve cavity (150) comprises a connecting part (160), the temperature control air groove (330) is connected with the valve cavity (150) through the connecting part (160), and the cover (840) can be close to and close the connecting part (160) or be far away from the connecting part (160).

3. The temperature controlled switching valve of claim 2, wherein:

the telescopic piece (850) is a flexible bag body, driving liquid is arranged in the telescopic piece (850), the temperature probe (910) is in contact with the driving liquid and can transfer temperature to the driving liquid, and the driving liquid can expand with heat and contract with cold.

4. The temperature-controlled switching valve according to claim 1, wherein:

a temperature control channel (180) is arranged in the valve body (100), and two ends of the temperature control channel (180) are respectively communicated with the valve cavity (150) and the second outlet (140).

5. The temperature-controlled switching valve according to claim 1, wherein:

the through air slot (315) comprises a first air slot (310) and a second air slot (320), the air inlet (120) is communicated with the first outlet (130) through the first air slot (310), and the air inlet (120) is communicated with the second outlet (140) through the second air slot (320).

6. The temperature controlled switching valve of claim 5, wherein:

at least three air inlet channels (125) are arranged in the valve body (100), each air inlet channel (125) is communicated with the air inlet (120), at least one air inlet channel (125) is communicated with the first air groove (310), at least one air inlet channel (125) is communicated with the second air groove (320), and at least one air inlet channel (125) is communicated with the temperature control air groove (330).

7. The temperature-controlled switching valve according to claim 1, wherein:

the valve cavity (150) comprises a connecting part (160), the temperature control gas groove (330) is connected with the valve cavity (150) through the connecting part (160), a valve port is arranged on the connecting part (160), and the plug assembly (800) can close the valve port so as to isolate the connecting part (160) from the valve cavity (150); a heat preservation mechanism is arranged in the connecting part (160), and the heat preservation mechanism can communicate the connecting part (160) and the valve cavity (150) when the plug assembly (800) closes the valve port.

8. The temperature controlled switching valve of claim 7, wherein:

the heat preservation mechanism comprises a first passage (170) and a second passage (175) which are arranged in the valve body (100), the connecting part (160) is communicated with the first passage (170), and the valve cavity (150) is communicated with the second passage (175); a control assembly capable of communicating or disconnecting the first passage (170) and the second passage (175) is disposed in the valve body (100).

9. The temperature controlled switching valve of claim 8, wherein:

the control assembly comprises a first valve core (620) rotatably arranged in the first channel (170), a first air guide hole is arranged in the first valve core (620), one end of the first air guide hole is positioned on the end surface of the first valve core (620), and the other end of the first air guide hole is positioned on the side wall of the first valve core (620); both ends of the first air guide hole are respectively communicated with the first channel (170) and the second channel (175).

10. The temperature controlled switching valve of claim 9, wherein:

a second valve core (610) is arranged in the second passage (175), and the second valve core (610) can rotatably adjust the flow cross-sectional area of the second passage (175).