A simple valve for bidirectional air outlet control opening and closing

Abstract

The utility model relates to the technical field of gas valves, and discloses a simple valve for two-way air outlet control opening and closing, including a valve body, a valve cover, a valve core, a first air outlet pipe fitting and a second air outlet pipe fitting; the rear end of the valve body is adaptively connected to the valve cover; the valve body is provided with an air inlet, a ventilation cavity and a valve core cavity; the air inlet is located in front of the valve core cavity; the valve core can be adapted and rotatably installed in the valve core cavity; the inner cavity of the valve core is connected to the ventilation cavity; the distance between the central axis of the air inlet and the rear end face of the valve cover is L; the distance L is 25-35mm. The simple valve for two-way air outlet control opening and closing provided by the utility model has a simple structure, can be used for two-way air outlet control, and has good flexibility of use. At the same time, the overall structure is compact and the volume is miniaturized, which can easily adapt to various narrow installation environments and better cooperate with other gas valves on gas equipment. In addition, the manufacturing cost is low, and it is more suitable for promotion in the market.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, in particular to a simple valve for bidirectional gas outlet control opening and closing. Background Art

[0002] The Chinese patent with patent number CN202320793615.9 discloses an oven valve for forward and reverse control of different air outlets, which includes a valve body, a valve cover, a valve core, a valve stem, a large spring, a push rod, a small spring, a limit plate and a solenoid valve assembly. The valve body includes a valve core cavity, a solenoid valve cavity, an air inlet interface, a left air outlet interface and a right air outlet interface. The valve core includes a drive sleeve, an air inlet cavity and a guide hole. The air inlet cavity is provided with a left air outlet group and a right air outlet group with a spacing. The push rod passes through the small spring and the guide hole to extend into the valve core and the end portion cooperates with the solenoid valve core of the solenoid valve assembly; the waist-shaped head of the valve stem passes through the waist-shaped hole and the large spring and slides with the drive groove on the drive sleeve, the large spring cooperates with the limit plate and the end of the air inlet cavity, and the push rod cooperates with the end of the waist-shaped head; the limit plate cooperates with the inner cavity of the valve core, and the valve stem rotates with the valve stem channel of the valve cover. Although the oven valve for controlling different air outlets in forward and reverse rotation has structures such as valve cover, valve core, valve stem, large spring, push rod, small spring, limit plate and solenoid valve assembly on the valve body, which plays the role of a safety switch valve, the oven valve for controlling different air outlets in forward and reverse rotation is designed in this way. Structures such as the solenoid valve assembly are easy to occupy space, the structure is complex, the overall structure is large in size, and the space occupied is too large. It cannot be easily adapted to various narrow installation environments and cannot be well coordinated with other gas valves for use on gas equipment. Utility Model Content

[0003] The utility model aims to overcome the technical problems in the prior art that the overall structure of the oven valve is large, occupies too much space, and cannot be well coordinated with other gas valves for use on gas equipment, and provides a simple valve for two-way gas outlet control opening and closing.

[0004] In order to achieve the above purpose, the utility model adopts the following scheme:

[0005] A simple valve for bidirectional air outlet control opening and closing, comprising a valve body, a valve cover and a valve core; the rear end of the valve body is adaptively connected to the valve cover; the valve body is provided with an air inlet, a ventilation cavity connected to the air inlet and a valve core cavity connected to the ventilation cavity; the air inlet is located in front of the valve core cavity; the valve core can be adaptively rotatably installed in the valve core cavity; the inner cavity of the valve core is connected to the ventilation cavity;

[0006] The distance between the central axis of the air inlet and the rear end surface of the valve cover is L; the distance L is 25-35 mm;

[0007] The valve body is provided with a first air outlet pipe member and a second air outlet pipe member, both of which are communicated with the valve core cavity and can be communicated with the inner cavity of the valve core.

[0008] Furthermore, the distance L is 30-33 mm.

[0009] Further, the first air outlet pipe member includes a first transverse pipe section, a first longitudinal pipe section and a first air outlet joint; the first transverse pipe section is vertically connected to the first longitudinal pipe section; the first transverse pipe section is connected to the left side wall of the valve body;

[0010] The second air outlet pipe member includes a second transverse pipe section, a second longitudinal pipe section and a second air outlet joint; the second transverse pipe section is vertically connected to the second longitudinal pipe section; the second transverse pipe section is connected to the right side wall of the valve body;

[0011] The valve core is provided with a first air outlet and a second air outlet which are connected to its inner cavity; the first air outlet rotates with the valve core and is connected to the first transverse pipe section when it is relatively aligned with the position of the first transverse pipe section; the second air outlet rotates with the valve core and is connected to the second transverse pipe section when it is relatively aligned with the position of the second transverse pipe section.

[0012] Furthermore, the first transverse pipe segment and the second transverse pipe segment are spaced apart on the side wall of the valve body in the front-to-rear direction of the valve body; the distance between the central axis of the first transverse pipe segment and the central axis of the second transverse pipe segment in the front-to-rear direction of the valve body is D1; ​​the distance D1 is 5-6mm.

[0013] Furthermore, a distance D2 between a central axis of the first longitudinal pipe segment and a central axis of the second longitudinal pipe segment relative to the left-right direction of the valve body is 40-50 mm.

[0014] Furthermore, the first air outlet pipe member and the second air outlet pipe member both discharge air toward the front end direction of the valve body; the front end surface of the first air outlet pipe member and the front end surface of the second air outlet pipe member are located on the same plane.

[0015] Further, the first transverse pipe segment is connected to the first longitudinal pipe segment to form an L-shaped pipe structure; the second transverse pipe segment is connected to the second longitudinal pipe segment to form an L-shaped pipe structure;

[0016] Furthermore, the first air outlet connector and the first longitudinal pipe section are adapted to be threadedly connected or to be connected by a ferrule; the second air outlet connector and the second longitudinal pipe section are adapted to be threadedly connected or to be connected by a ferrule.

[0017] Furthermore, the simple valve for bidirectional air outlet control opening and closing also includes a rotating shaft, a limit plate and a spring; a card embedding groove is provided on the rear end of the valve core; a card embedding head is provided on the front end of the rotating shaft, which can be adapted to slide and embed into the card embedding groove; the rotating shaft can be rotatably sleeved on the valve cover and can be moved closer to or away from the valve core; the card embedding head can reciprocate relative to the valve core in the card embedding groove; the card embedding head is covered with a limit plate; a limit clamping part is provided on the limit plate; a limit groove for limiting and clamping the limit plate and a rotation adjustment groove communicated with the limit groove and located in front of the limit groove are provided in the valve cover; the limit clamping part is adapted to fit with the limit groove and slidably cooperates with the rotation adjustment groove;

[0018] The front end of the spring is sleeved on the rear end of the valve core, and the rear end of the spring is sleeved on the clamping head and abuts against the limit plate.

[0019] Furthermore, the rotating shaft is made by cold heading integral molding process.

[0020] Compared with the existing technology, the utility model has the following advantages:

[0021] 1. The utility model realizes a two-way air outlet control effect by arranging a valve body, a valve cover, a valve core, a first air outlet pipe fitting and a second air outlet pipe fitting in combination, and utilizes the valve core in combination with the first air outlet pipe fitting and the second air outlet pipe fitting. The utility model has a simple structure, is easy to operate, and improves the stability of gas supply. Even if the air outlet of one air outlet pipe fitting fails or is blocked, the air outlet of the other air outlet pipe fitting can continue to work normally, thereby reducing the pressure borne by a single air outlet pipe fitting, reducing the safety hazards caused by excessive pressure, and ensuring the continuity, stability and safety of gas supply. At the same time, the two-way air outlet control can improve the flexibility of use and better meet the needs of various application scenarios.

[0022] 2. The utility model reasonably designs the distance range from the central axis of the air inlet to the end face of the valve cover, and the control range is within 25-35mm. The air inlet is set in front of the valve core cavity, so that the size range of key components in the front-to-back direction of the valve body can be accurately controlled, and the valve body, valve core, valve cover, first air outlet pipe fitting and second air outlet pipe fitting, as well as the size of the ventilation cavity and the valve core cavity in the front-to-back direction of the valve body can be effectively limited, and the design layout can be better optimized, so that the overall structure of the simple valve for two-way air outlet control opening and closing is more compact, and the miniaturized design avoids the structure from occupying too much space, can easily adapt to various narrow installation environments, and better cooperate with other gas valves on gas equipment to improve space utilization. At the same time, the manufacturing cost factor is fully considered, the reduction of material usage, and the simplification of the production process all effectively reduce the manufacturing cost, which is more suitable for promotion in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Figure 1 The utility model is a schematic diagram of the top view of the simple valve for bidirectional air outlet control opening and closing.

[0025] Figure 2 It is a three-dimensional structural schematic diagram of a simple valve for bidirectional air outlet control opening and closing of the utility model.

[0026] Figure 3 It is a three-dimensional structural schematic diagram of a disassembled simple valve for bidirectional air outlet control opening and closing of the utility model.

[0027] Figure 4 It is a three-dimensional structural schematic diagram of a structure formed by a valve body, a first air outlet pipe member and a second air outlet pipe member of the utility model.

[0028] Figure 5 for Figure 4 Cross-sectional view of AA.

[0029] The figure includes:

[0030] Valve body 1, air inlet 11, ventilation cavity 12, valve core cavity 13, valve cover 2, limit groove 21, rotation adjustment groove 22, valve core 3, first air outlet 31, second air outlet 32, embedded groove 33, first air outlet pipe fitting 4, first transverse pipe section 41, first longitudinal pipe section 42, first air outlet joint 43, second air outlet pipe fitting 5, second transverse pipe section 51, second longitudinal pipe section 52, second air outlet joint 53, rotating shaft 6, embedded head 61, limit plate 7, limit clamping part 71, spring 8. DETAILED DESCRIPTION

[0031] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] like Figures 1 to 5As shown, a simple valve for two-way air outlet control opening and closing includes a valve body 1, a valve cover 2, a valve core 3, a rotating shaft 6, a first air outlet pipe fitting 4, a second air outlet pipe fitting 5, a limit plate 7 and a spring 8; the rear end of the valve body 1 is adaptively connected to the valve cover 2; the valve body 1 is provided with an air inlet 11, a ventilation cavity 12 connected to the air inlet 11 and a valve core cavity 13 connected to the ventilation cavity 12; the air inlet 11 is located in front of the valve core cavity 13; the valve core 3 can be adaptively rotatably installed in the valve core cavity 13; the inner cavity of the valve core 3 is connected to the ventilation cavity 12; the distance between the central axis of the air inlet 11 and the rear end surface of the valve cover 2 is L; the distance L is 25-35mm; the valve body 1 is provided with a first air outlet pipe fitting 4 and a second air outlet pipe fitting 5, both of which are connected to the valve core cavity 13 and can be connected to the inner cavity of the valve core 3. The rear end of the valve core 3 is provided with an embedding groove 33; the front end of the rotating shaft 6 is provided with an embedding head 61 which can be adapted to slide and embed into the embedding groove 33; the rotating shaft 6 can be rotatably sleeved on the valve cover 2 and can be moved closer to or away from the valve core 3; the embedding head 61 can reciprocate relative to the valve core 3 in the embedding groove 33; the embedding head 61 is sleeved on a limiting plate 7; a limiting clamping portion 71 is provided on the limiting plate 7; a limiting groove 21 for limiting and clamping the limiting plate 7 and a rotation adjustment groove 22 which is communicated with the limiting groove 21 and is located in front of the limiting groove 21 are provided in the valve cover 2; the limiting clamping portion 71 is adapted to fit with the limiting groove 21 and slidably cooperates with the rotation adjustment groove 22; the front end of the spring 8 is sleeved on the rear end of the valve core 3, and the rear end of the spring 8 is sleeved on the embedding head 61 and top-contacts the limiting plate 7.

[0033] The simple valve for two-way gas outlet control opening and closing is combined by arranging a valve body 1, a valve cover 2, a valve core 3, a rotating shaft 6, a first gas outlet pipe fitting 4, a second gas outlet pipe fitting 5, a limiting plate 7 and a spring 8. When the gas source needs to be opened, the rotating shaft 6 is pressed to move in the direction of the valve core 3, and the limiting plate 7 moves synchronously with the rotating shaft 6. The limiting clamping part 71 breaks away from the restriction of the limiting groove 21 and enters the rotation adjustment groove 22. The embedding head 61 slides in the direction of the valve core 3 and is embedded in the embedding groove 33. The spring 8 is compressed. At this time, according to the needs, the rotating shaft 6 is rotated according to the designed rotation angle, and the limiting clamping part 71 is rotated in the rotation adjustment groove 22 according to the set rotation angle, so that the first gas outlet pipe fitting 4 or the second gas outlet pipe fitting 5 can be opened, so that the gas can pass through the gas inlet 11, the ventilation cavity 12, and the inner cavity of the valve core 3 in sequence, and finally flow out from the first gas outlet pipe fitting 4 or the second gas outlet pipe fitting 5. Of course, in another embodiment, by reasonably designing the position of the first air outlet pipe 4 or the second air outlet pipe 5 on the valve body 1, and the position of the air outlet on the valve core 3 and the first air outlet pipe 4 or the second air outlet pipe 5, the rotating shaft 6 can be rotated at an angle, so that the valve core 3 can be connected to the first air outlet pipe 4 or the second air outlet pipe 5 at the same time. In this way, the valve core 3 is combined with the first air outlet pipe 4 and the second air outlet pipe 5 to achieve a two-way air outlet control effect, with a simple structure and convenient operation, and improve the stability of gas supply. Even if the air outlet of one air outlet pipe fails or is blocked, the air outlet of the other air outlet pipe can continue to work normally, reducing the pressure on a single air outlet pipe, reducing the safety hazards caused by excessive pressure, and ensuring the continuity, stability and safety of gas supply. At the same time, the two-way air outlet control can improve the flexibility of use and better meet the needs of various application scenarios. On the other hand, the distance range from the central axis of the air inlet 11 to the end face of the valve cover 2 is reasonably designed within a control range of 25-35mm, and the air inlet 11 is set in front of the valve core cavity 13. In this way, the size range of key components in the front-to-back direction of the valve body 1 can be accurately controlled, which can effectively limit the size of the valve body 1, the valve core 3, the valve cover 2, the first air outlet pipe fitting 4 and the second air outlet pipe fitting 5, as well as the ventilation cavity 12 and the valve core cavity 13 in the front-to-back direction of the valve body 1, and better optimize the design layout, so that the overall structure of the simple valve for two-way air outlet control opening and closing is more compact, and the miniaturized design avoids the structure from occupying too much space, can easily adapt to various narrow installation environments, and better cooperate with other gas valves on gas equipment to improve space utilization. At the same time, the manufacturing cost factor is fully considered, the reduction in material usage, and the simplification of the production process all effectively reduce the manufacturing cost, making it more suitable for promotion in the market.

[0034] As for the rotating shaft 6, the rotating shaft 6 is made by a cold heading one-piece molding process. The rotating shaft 6 is made by a cold heading one-piece molding process, and the structure is more compact and firm, thereby greatly improving the overall strength of the structure. Secondly, the cold heading one-piece molding process is also efficient and environmentally friendly. Compared with traditional welding or bolt connection methods, the cold heading one-piece molding process does not require complicated welding operations or bolt tightening, which greatly simplifies the production process and improves production efficiency. At the same time, this process also reduces the harmful gases and waste slag that may be generated during the welding process, which is more in line with the environmental protection requirements of modern industrial production. In addition, the rotating shaft 64 made by the cold heading one-piece molding process also has high precision and stability.

[0035] Preferably, the distance L is 30-33 mm. Specifically, the distance L can be 30 mm, 32.6 mm or 33 mm. By optimizing the design of the distance L range in this way, the compactness of the structure is ensured, and the structural instability and excessive volume caused by the long distance are avoided. The design layout is further optimized, so that the overall structure of the simple valve for two-way gas outlet control opening and closing is more compact, and the miniaturized design can easily adapt to various narrow installation environments, and better cooperate with other gas valves on gas equipment to improve space utilization. At the same time, this better considers the manufacturing cost factor, the reduction of material usage, and the simplification of the production process, which effectively reduce the manufacturing cost and are more suitable for promotion in the market.

[0036] In this embodiment, the first air outlet pipe fitting 4 includes a first transverse pipe section 41, a first longitudinal pipe section 42 and a first air outlet joint 43; the first transverse pipe section 41 is vertically connected to the first longitudinal pipe section 42; the first transverse pipe section 41 is connected to the left side wall of the valve body 1; the second air outlet pipe fitting 5 includes a second transverse pipe section 51, a second longitudinal pipe section 52 and a second air outlet joint 53; the second transverse pipe section 51 is vertically connected to the second longitudinal pipe section 52; the second transverse pipe section 51 is connected to the right side wall of the valve body 1; the valve core 3 is provided with a first air outlet 31 and a second air outlet 32 ​​connected to its inner cavity; the first air outlet 31 rotates with the valve core 3 and is connected to the first transverse pipe section 41 when it is relatively aligned with the position of the first transverse pipe section 41; the second air outlet 32 ​​rotates with the valve core 3 and is connected to the second transverse pipe section 51 when it is relatively aligned with the position of the second transverse pipe section 51. The first transverse pipe section 41, the first longitudinal pipe section 42 and the first gas outlet joint 43 are arranged in this way to form a first gas outlet pipe fitting 4, and the second transverse pipe section 51, the second longitudinal pipe section 52 and the second gas outlet joint 53 form a second gas outlet pipe fitting 5. The arrangement of the first gas outlet joint 43 and the second gas outlet joint 53 can more conveniently connect the gas pipeline and enhance the installation convenience of the structure. When the gas source needs to be opened, when the first gas outlet 31 rotates with the valve core 3 and is relatively aligned with the position of the first transverse pipe section 41, the first gas outlet pipe fitting 4 is connected with the inner cavity of the valve core 3, so that the first gas outlet pipe fitting 4 can discharge gas; when the second gas outlet 32 ​​rotates with the valve core 3 and is relatively aligned with the position of the second transverse pipe section 51, the second gas outlet pipe fitting 5 is connected with the inner cavity of the valve core 3, so that the second gas outlet pipe fitting 5 can discharge gas; in this way, the valve core 3 is combined with the first gas outlet pipe fitting 4 and the second gas outlet pipe fitting 5 to achieve a two-way gas outlet control effect, thereby ensuring the continuity, stability and safety of the gas supply and the flexibility of use, and better meeting the needs of various application scenarios.

[0037] Preferably, the first transverse pipe section 41 and the second transverse pipe section 51 are arranged on the side wall of the valve body 1 at intervals in the front-to-rear direction of the valve body 1; the distance between the central axis of the first transverse pipe section 41 and the central axis of the second transverse pipe section 51 in the front-to-rear direction of the valve body 1 is D1; ​​the distance D1 is 5-6 mm. Specifically, the distance D1 is 5 mm, 5.5 mm or 6 mm. The distance D2 between the central axis of the first longitudinal pipe section 42 and the central axis of the second longitudinal pipe section 52 in the left and right direction relative to the valve body 1; the distance D2 is 40-50mm, specifically, the distance D2 is 43mm, 45mm, 46mm or 48mm, thus defining the distance between the first transverse pipe section 41 and the second transverse pipe section 51, and the distance between the first longitudinal pipe section 42 and the second longitudinal pipe section 52, further defining the dimensions of the valve body 1, the valve core 3, the valve cover 2, the first air outlet pipe fitting 4 and the second air outlet pipe fitting 5, and the ventilation cavity 12 and the valve core cavity 13 in the front and rear directions of the valve body 1, and better optimizing the design layout, so that the overall structure of the simple valve for two-way air outlet control opening and closing is more compact, and the miniaturized design avoids the structure from occupying too much space, can easily adapt to various narrow installation environments, and better cooperate with other gas valves on gas equipment to improve space utilization. At the same time, the manufacturing cost factor is fully considered, the reduction in material usage, and the simplification of the production process all effectively reduce the manufacturing cost, making it more suitable for promotion in the market.

[0038] In order to make the structure more compact, neat and orderly, the first air outlet pipe 4 and the second air outlet pipe 5 both exhaust air toward the front end of the valve body 1; the front end surface of the first air outlet pipe 4 and the front end surface of the second air outlet pipe 5 are located on the same plane.

[0039] In this embodiment, in order to facilitate the structural design, improve the gas diversion effect, make the structure more compact, and optimize the structural layout, the first transverse pipe section 41 is connected to the first longitudinal pipe section 42 to form an L-shaped pipe structure; the second transverse pipe section 51 is connected to the second longitudinal pipe section 52 to form an L-shaped pipe structure.

[0040] In this embodiment, the first air outlet connector 43 and the first longitudinal pipe section 42 are adapted to be threaded or ferrule connected; the second air outlet connector 53 and the second longitudinal pipe section 52 are adapted to be threaded or ferrule connected, and the structure is simple to assemble and disassemble.

[0041] The principle of the utility model is:

[0042] When it is necessary to open the gas source, the rotating shaft 6 is pressed to move in the direction of the valve core 3, and the limit plate 7 moves synchronously with the rotating shaft 6. The limit clamping part 71 breaks away from the restriction of the limit groove 21 and enters the rotation adjustment groove 22. The embedding head 61 slides in the direction of the valve core 3 and is embedded in the embedding groove 33. The spring 8 is compressed. At this time, according to the needs, the rotating shaft 6 is rotated according to the designed rotation angle. The limit clamping part 71 rotates in the rotation adjustment groove 22 according to the set rotation angle. When the rotating shaft 6 rotates to the set rotation angle, the first air outlet pipe fitting 4 or the second air outlet pipe fitting 5 can be opened. In this way, the gas can pass through the air inlet 11, the ventilation cavity 12, and the inner cavity of the valve core 3 in sequence, and finally flow out from the first air outlet pipe fitting 4 or the second air outlet pipe fitting 5, thereby realizing the control of two-way air outlet.

[0043] When it is necessary to close the air source, the shaft 6 first rotates back to the initial position, and the valve core 3 rotates synchronously with the shaft 6. The connection between the valve core 3 and the first air outlet pipe fitting 4 or the second air outlet pipe fitting 5 is closed, and the limit clamping portion 71 corresponds to the position of the limit groove 21. Under the action of the spring 8, the limit clamping portion 71 returns to the limit groove 21, the shaft 6 is reset, and the locking head 61 moves in the locking slide groove 33 along the direction of the valve cover 2, thereby achieving the effect of closing the first air outlet pipe fitting 4 and the second air outlet pipe fitting 5.

[0044] In summary, the embodiment of the utility model provides a simple valve for bidirectional air outlet control opening and closing, which has the following advantages:

[0045] 1. By arranging the valve body 1, the valve cover 2, the valve core 3, the first air outlet pipe fitting 4 and the second air outlet pipe fitting 5 in combination, and utilizing the valve core 3 in combination with the first air outlet pipe fitting 4 and the second air outlet pipe fitting 5, a two-way air outlet control effect is achieved. The structure is simple, the operation is convenient, and the stability of the gas supply is improved. Even if the air outlet of one air outlet pipe fitting fails or is blocked, the air outlet of the other air outlet pipe fitting can continue to work normally, thereby reducing the pressure on a single air outlet pipe fitting, reducing the potential safety hazards caused by excessive pressure, and ensuring the continuity, stability and safety of the gas supply. At the same time, the two-way air outlet control can improve the flexibility of use and better meet the needs of various application scenarios.

[0046] 2. Reasonably design the distance range from the central axis of the air inlet 11 to the end face of the valve cover 2, and control the range within 25-35mm. Set the air inlet 11 in front of the valve core cavity 13, and limit the distance between the first transverse pipe section 41 and the second transverse pipe section 51, and the distance between the first longitudinal pipe section 42 and the second longitudinal pipe section 52. Accurately control the size range of key components in this way, which can effectively limit the valve body 1, valve core 3, valve cover 2, first air outlet pipe fitting 4 and second air outlet pipe fitting 5, as well as the size of the ventilation cavity 12 and the valve core cavity 13 in the front and rear directions of the valve body 1, and better optimize the design layout, so that the overall structure of the simple valve for two-way air outlet control opening and closing is more compact, and the miniaturized design avoids the structure from occupying too much space, can easily adapt to various narrow installation environments, and better cooperate with other gas valves on gas equipment to improve space utilization. At the same time, the manufacturing cost factor is fully considered, the reduction in material usage, and the simplification of the production process all effectively reduce the manufacturing cost, which is more suitable for promotion in the market.

[0047] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.

Claims

1. A simple valve for bidirectional air outlet control opening and closing, comprising a valve body, a valve cover and a valve core; the rear end of the valve body is adaptively connected to the valve cover; characterized in that: The valve body is provided with an air inlet, a ventilation cavity connected to the air inlet, and a valve core cavity connected to the ventilation cavity; the air inlet is located in front of the valve core cavity; the valve core can be adapted and rotatably installed in the valve core cavity; the inner cavity of the valve core is connected to the ventilation cavity; The distance between the central axis of the air inlet and the rear end surface of the valve cover is L; the distance L is 25-35 mm; The valve body is provided with a first air outlet pipe member and a second air outlet pipe member, both of which are communicated with the valve core cavity and can be communicated with the inner cavity of the valve core.

2. The simple valve for bidirectional air outlet control opening and closing according to claim 1, characterized in that: The distance L is 30-33 mm.

3. The simple valve for bidirectional air outlet control opening and closing according to claim 1, characterized in that: The first air outlet pipe member includes a first transverse pipe section, a first longitudinal pipe section and a first air outlet joint; the first transverse pipe section is vertically connected to the first longitudinal pipe section; the first transverse pipe section is connected to the left side wall of the valve body; The second air outlet pipe member includes a second transverse pipe section, a second longitudinal pipe section and a second air outlet joint; the second transverse pipe section is vertically connected to the second longitudinal pipe section; the second transverse pipe section is connected to the right side wall of the valve body; The valve core is provided with a first air outlet and a second air outlet which are connected to its inner cavity; the first air outlet rotates with the valve core and is connected to the first transverse pipe section when it is relatively aligned with the position of the first transverse pipe section; the second air outlet rotates with the valve core and is connected to the second transverse pipe section when it is relatively aligned with the position of the second transverse pipe section.

4. The simple valve for bidirectional air outlet control opening and closing according to claim 3, characterized in that: The first transverse pipe section and the second transverse pipe section are arranged on the side wall of the valve body in a front-to-rear direction relative to the valve body; the distance between the central axis of the first transverse pipe section and the central axis of the second transverse pipe section in the front-to-rear direction of the valve body is D1; ​​the distance D1 is 5-6mm.

5. The simple valve for bidirectional air outlet control opening and closing according to claim 3, characterized in that: The distance between the central axis of the first longitudinal pipe section and the central axis of the second longitudinal pipe section in the left-right direction of the valve body is D2; the distance D2 is 40-50 mm.

6. The simple valve for bidirectional air outlet control opening and closing according to claim 3, characterized in that: The first air outlet pipe member and the second air outlet pipe member both discharge air toward the front end direction of the valve body; the front end surface of the first air outlet pipe member and the front end surface of the second air outlet pipe member are located on the same plane.

7. The simple valve for bidirectional air outlet control opening and closing according to claim 3, characterized in that: The first transverse pipe segment is connected to the first longitudinal pipe segment to form an L-shaped pipe structure; the second transverse pipe segment is connected to the second longitudinal pipe segment to form an L-shaped pipe structure.

8. The simple valve for bidirectional air outlet control opening and closing according to claim 3, characterized in that: The first air outlet connector is adapted to be threadedly connected or ferrule-connected to the first longitudinal pipe section; the second air outlet connector is adapted to be threadedly connected or ferrule-connected to the second longitudinal pipe section.

9. The simple valve for bidirectional air outlet control opening and closing according to claim 1, characterized in that: It also includes a rotating shaft, a limiting plate and a spring; a card embedding groove is provided on the rear end of the valve core; a card embedding head is provided on the front end of the rotating shaft, which can be adapted to slide and embed into the card embedding groove; the rotating shaft can be rotatably sleeved on the valve cover and can be moved closer to or away from the valve core; the card embedding head can reciprocate relative to the valve core in the card embedding groove; the card embedding head is covered with a limiting plate; a limiting clamping part is provided on the limiting plate; a limiting groove for limiting and clamping the limiting plate and a rotation adjustment groove communicated with the limiting groove and located in front of the limiting groove are provided in the valve cover; the limiting clamping part is adapted to fit with the limiting groove and slidably cooperates with the rotation adjustment groove; The front end of the spring is sleeved on the rear end of the valve core, and the rear end of the spring is sleeved on the clamping head and abuts against the limit plate.

10. The simple valve for bidirectional air outlet control opening and closing according to claim 9, characterized in that: The rotating shaft is made by cold heading integral forming process.

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