CN210566436U - Air regulating valve - Google Patents

Abstract

The utility model discloses an air regulating valve, including housing and carousel, the upper portion opening of housing, the carousel is established in the housing, and the bottom of carousel contacts with the interior bottom of housing, and the bottom of housing is equipped with fore-and-aft air vent, is equipped with fore-and-aft gas pocket on the carousel, is equipped with the turning handle on the carousel, and the turning handle stretches out from the opening of housing. Through the knob handle, the carousel rotates in the housing, when the gas pocket on the carousel aligns with the venthole, external air can pass through in the gas pocket gets into the venthole, and flow from the bottom of housing, the air of outflow can get into in the space or the liquid that correspond, when the quantity of gas pocket is a plurality of and internal diameter size diverse on the carousel, account for than according to required air quantity or air, the knob handle, the gas pocket that will correspond internal diameter size aligns the venthole can, adjust easy operation, the controllability is stronger, moreover, the steam generator is simple in structure, low in manufacturing cost, when needing to cut off the air admission space or the liquid that correspond, only need the knob handle, stagger the gas pocket with the venthole can.

Description

Air regulating valve

Technical Field

The utility model relates to an air regulating valve.

Background

The existing air regulating valve has low accuracy and controllability, the air regulating valve is operated by the same person, the front and back regulation can have deviation, even if the scale mark is used for assisting regulation, the regulation precision is not high, the alignment line is difficult to be strictly aligned with the established scale mark in the regulation process, the alignment line can deviate from the established scale mark more or less, and thus the air inlet amount is easy to exceed or be lower than the established value, thereby influencing the air ratio, for example, when the ice cream is manufactured and the milk cover is manufactured, the ice cream slurry and the air ratio in the milk cover stock solution are very important, the ice cream and the puffing effect of the milk cover can be influenced, thereby influencing the ice cream and the taste of the milk cover, the structure of the existing air regulating valve is complex generally, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air regulating valve to solve at least one among the above-mentioned technical problem.

According to one aspect of the utility model, an air adjusting valve is provided, which comprises a housing and a rotary disc, wherein the upper part of the housing is provided with an opening, the rotary disc is arranged in the housing, the bottom of the rotary disc is contacted with the inner bottom of the housing, the bottom of the housing is provided with a longitudinal air vent, the rotary disc is provided with a longitudinal air hole, the rotary disc is provided with a rotary handle, the rotary handle extends out from the opening of the housing,

when the rotary disc is subjected to a rotating force, the rotary disc rotates in the housing, so that the air holes are aligned with the air holes or staggered with the air holes.

The utility model discloses in, through the knob turning handle, the carousel receives the turning force, the carousel rotates in the housing, gas pocket on the carousel aligns with the vent hole of housing bottom, external air can pass through in the gas pocket entering air vent on the carousel, and flow from the bottom of housing, the air of outflow can get into in the space or the liquid that correspond (like ice cream thick liquids, milk lid stoste), when the quantity of gas pocket is a plurality of and internal diameter size diverse on the carousel, according to required air quantity or air account for than, the knob turning handle, the air vent that the housing bottom was aimed at to the gas pocket that will correspond internal diameter size can, adjust easy operation, and is stronger, and simple structure, the cost of manufacture is low, when need cut off in the space or the liquid that the air admission corresponds, only need the knob turning handle, with the gas pocket on the carousel with the air vent hole of housing bottom stagger can.

In some embodiments, the air holes may include air holes a, B, and C, the inner diameter of the air holes C being greater than the inner diameter of the air holes B, the inner diameter of the air holes B being greater than the inner diameter of the air holes a. Therefore, according to the required air quantity or the air ratio, the rotating handle is turned to rotate the rotating disc, and the air hole A, the air hole B or the air hole C with the corresponding inner diameter size is aligned to the vent hole at the bottom of the housing, so that the adjusting operation is simple.

In some embodiments, the peripheral wall of the upper opening of the housing may be provided with a notch aligned with the vent. From this, when the quantity of gas pocket was a plurality of and internal diameter size diverse on the carousel, through rotating carousel air regulation volume or air and account for than, rotate the gas pocket that corresponds on the carousel and can ensure that the gas pocket that corresponds aligns with the air vent of housing bottom in the breach, furthest has reduced the gas pocket and has aimed at the deviation that causes with the air vent, ensures to adjust the precision, easy operation moreover.

In some embodiments, the air conditioner can further comprise a joint, the joint is arranged on the outer bottom of the housing, a through hole is formed in the joint, one end of the through hole is communicated with the air vent, and the other end of the through hole is communicated with the outside. From this, can with through the joint the utility model discloses an air regulating valve installs very conveniently on other equipment, like on the pump body.

In some embodiments, a one-way nozzle may be further included, and the other end of the through hole extends out of the joint to form a protrusion, and the one-way nozzle is sleeved on the protrusion. Thus, the one-way nozzle can prevent reverse flow of air, liquid, etc.

In some embodiments, a sleeve may be included, the sleeve being disposed over the connector, the sleeve being removably coupled to the connector. From this, can install air regulating valve on other equipment more conveniently through the sleeve pipe, simultaneously, according to the installation needs or when needing clean, maintain air regulating valve, with the sleeve pipe from connecting directly pull down can, it is very convenient.

In some embodiments, a sealing ring A can be further included, and the periphery of one end of the vent hole close to the rotary disc is provided with an annular groove A, and the sealing ring A is arranged in the annular groove A. Therefore, the sealing ring A is arranged on the periphery of one end, close to the rotary disc, of the vent hole, so that air can be prevented from escaping, and the external air can be prevented from entering the vent hole through a gap between the rotary disc and the inner bottom of the housing, so that the air quantity or the air ratio is prevented from being influenced.

In some embodiments, the end of the gas hole near the inner bottom of the housing may be flared. From this, the one end of the gas pocket that is close to the bottom in the housing is the loudspeaker form, can effectively reduce the carousel and rotate the in-process gas pocket tip to sealing washer A's transection power, effectively reduce the gas pocket tip promptly and rotate the in-process to sealing washer A's damaged dynamics, extension sealing washer A's life.

In some embodiments, the sealing device can further comprise three sealing rings B, three annular grooves B are formed in the inner bottom of the housing, one sealing ring B is arranged in each annular groove B, and the three annular grooves B and the annular groove a are arranged in a square shape. From this, three annular groove B is the square with annular groove A and arranges, and three sealing washer B is the square with sealing washer A and arranges promptly, can guarantee the equilibrium between carousel and the housing, prevents that the carousel from rotating the in-process slope or beating to appear.

In some embodiments, a connection position between the inner bottom surface of the housing and the groove wall of the annular groove a may be provided with a chamfer a, and a connection position between the inner bottom surface of the housing and the groove wall of the annular groove B may be provided with a chamfer B. Therefore, the existence of the chamfer A can further reduce the transverse shearing force applied to the sealing ring A in the rotating process of the rotary table, the service life of the sealing ring A is prolonged, the existence of the chamfer B can reduce the transverse shearing force applied to the sealing ring B in the rotating process of the rotary table, and the service life of the sealing ring B is prolonged.

Drawings

Fig. 1 is a schematic structural view of an air adjustment valve according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the air adjustment valve of FIG. 1 in a disassembled configuration;

FIG. 3 is a schematic view of the lower casing of the air adjustment valve shown in FIG. 2;

FIG. 4 is a schematic view of the upper housing of the air adjustment valve of FIG. 2;

FIG. 5 is a schematic view of a one-way nozzle of the air adjustment valve shown in FIG. 2;

FIG. 6 is a side view of the air adjustment valve of FIG. 1 shown with the plug pin concealed;

3 FIG. 3 7 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 of 3 the 3 air 3 adjustment 3 valve 3 of 3 FIG. 3 6 3 taken 3 along 3 the 3 direction 3 A 3- 3 A 3; 3

FIG. 8 is a side view of the air adjustment valve of FIG. 1 with the air hole B aligned with the vent hole behind the concealed plug pin;

FIG. 9 is a schematic sectional view of the air adjustment valve shown in FIG. 8 taken along the direction B-B.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 to 9 schematically show the structure of an air control valve according to an embodiment of the present invention.

As shown in fig. 1 to 9, the air adjustment valve includes a housing 1 and a turntable 2. Further, the air adjustment valve may further include a nipple 3, a one-way nozzle 4, a sleeve 5, a seal ring a6, a seal ring B7, and a plug pin 8.

As shown in fig. 1 and 2, the housing 1 includes an upper housing 101 and a lower housing 102, the upper housing 101 is mounted on the lower housing 102 in a snap-fit manner, and the upper housing 101 and the lower housing 102 can be fixed by screws or by snap-fit.

As shown in fig. 4, an opening 1011 is formed in the upper case 101.

As shown in fig. 3, the lower cover 102 has a convex shape in longitudinal section, the bottom of the periphery of the upper cover 101 is fitted to the lower end surface of the periphery of the lower cover 102, and the upper end surface of the lower cover 102 serves as the inner bottom surface of the cover 1.

As shown in fig. 1 and 2, the turntable 2 is installed in the housing 1, the bottom of the turntable 2 is in contact with the inner bottom of the housing 1, that is, the bottom of the turntable 2 is in contact with the upper end surface of the lower housing 102, the periphery of the top of the turntable 2 is in contact with the inner top surface of the upper housing 101, and the turntable 2 can rotate in the housing 1.

As shown in fig. 2 and 3, a longitudinal vent hole 11 is formed in the bottom of the housing 1, that is, a longitudinal vent hole 11 is formed in the lower housing 102, and an upper port of the vent hole 11 is located on the upper end surface of the lower housing 102.

The turntable 2 is formed with longitudinal air holes. As shown in fig. 2, in this embodiment, the air holes include air hole a21, air hole B22, and air hole C23, the inner diameter of air hole C23 is larger than the inner diameter of air hole B22, the inner diameter of air hole B22 is larger than the inner diameter of air hole a21, that is, three steps are divided, air hole a21 is 1 step (indicated by numeral "1"), air hole B22 is 2 steps (indicated by numeral "2"), air hole C23 is 3 steps (indicated by numeral "3"), the axes of air hole a21, air hole B22, and air hole C23 are parallel to the axis of air vent hole 11, and air hole a21, air hole B22, and air hole C23 are arranged in an equilateral triangle (that is, air hole a21, air hole B22, and air hole C23 are connected in sequence to form an equilateral triangle pattern. In other embodiments, according to the requirement of adjusting the gears, the number of the air holes, the size of the inner diameters of the air holes and the arrangement mode of the air holes can be adaptively adjusted, for example, the number of the air holes, the size of the inner diameters of the air holes and the arrangement mode of the air holes are divided into two gears or more than four gears.

As shown in fig. 1, the periphery of the opening 1011 on the upper casing 101 covers the port of the air hole on the turntable 2, namely: the upper port of the air hole a21, the upper port of the air hole B22 and the upper port of the air hole C23 are all covered by the inner edge portion of the upper housing 101, and when the air hole is staggered with the vent hole 11, the ports of the air hole are covered by the upper housing 101, so that external air can be effectively prevented from entering the vent hole 11.

As shown in fig. 4, a notch 12 is formed on the peripheral wall of the opening 1011 of the upper cover shell 101, the cross-sectional area of the notch 12 is smaller than that of the vent hole 11, as shown in fig. 1 and fig. 2, the notch 12 is aligned with the vent hole 11, when the cover shell 1 is horizontally placed, the notch 12 is located right above and at the middle position of the vent hole 11, meanwhile, the cross-sectional area of the notch 12 is larger than that of the air hole a21, the cross-sectional area of the notch 12 is larger than that of the air hole B22, and the cross-sectional area of the notch 12 is larger than that of the air hole C23, so that the air hole a21, the air hole B22 or the air hole C23 can be; according to the required air quantity or the air ratio, the rotating disc 2 is rotated, and the air hole A21, the air hole B22 or the air hole C23 is rotated to the notch 12, so that the corresponding air hole is aligned with the vent hole 11 at the bottom of the housing 1, the deviation caused by misalignment of the air hole and the vent hole 11 can be reduced to the greatest extent, the adjusting precision is ensured, and the operation is simple.

As shown in fig. 1, an indication mark (e.g., a triangle) may be disposed on the upper casing 101 to indicate the position of the notch 12 for easy operation.

As shown in fig. 1, a rotating handle 24 is integrally formed on the rotating disc 2, the rotating handle 24 extends out of the opening 1011 of the upper housing 101, and the rotating disc 2 can rotate in the housing 1 by twisting the rotating handle 24, which is very convenient. The lever 24 is turned and the turntable 2 is rotated in the housing 1 so that the air holes (air hole a21, air hole B22, air hole C23) are aligned with the air holes 11 or are offset from the air holes 11.

As shown in fig. 2 and 3, an annular groove a13 is formed on the periphery of one end (the upper end shown in fig. 2) of the vent hole 11 close to the turntable 2, and a sealing ring a6 is installed in the annular groove a13, so that when the turntable 2 is removed, the sealing ring a6 is higher than the inner bottom surface of the housing 1, that is, the sealing ring a6 is higher than the highest end surface of the lower housing 102, so that the sealing ring a6 is squeezed in a gap between the lower end surface of the turntable 2 and the upper end surface of the lower housing 102 when the turntable 2 is installed in the housing 1, and a sealing effect is ensured, and the existence of the sealing ring a6 can prevent air in the vent hole and the vent hole 11 from escaping, and can also prevent external air from entering the vent hole 11 through the gap between the turntable 2 and the inner bottom of the housing 1, and affecting the air volume or the.

As shown in fig. 2, one end (lower end shown in fig. 2) of the air hole a21 close to the lower casing 102 is in a horn shape, one end (lower end shown in fig. 2) of the air hole B22 close to the lower casing 102 is in a horn shape, one end (lower end shown in fig. 2) of the air hole C23 close to the lower casing 102 is in a horn shape, and one end of the air hole close to the lower casing 102 is in a horn shape, so that a tangential force of the end of the air hole on the sealing ring a6 during rotation of the turntable 2 can be effectively reduced, that is, a damage force of the end of the air hole on the sealing ring a6 during rotation can be effectively reduced, and the service life of the sealing ring a6 can be prolonged.

As shown in fig. 2 and 3, in this embodiment, three annular grooves B14 are formed on the top of the lower housing 102, each annular groove B14 is installed with a sealing ring B7, when the rotary disc 2 is removed, it is ensured that the three sealing rings B7 are higher than the inner bottom surface of the housing 1, i.e., the sealing ring B7 is higher than the highest end surface of the lower housing 102, the sealing ring B7 is squeezed in the gap between the lower end surface of the rotary disc 2 and the upper end surface of the lower housing 102 when the rotary disc 2 is installed in the housing 1, and the three annular grooves B14 and the annular groove a13 are arranged in a square shape (i.e., the three annular grooves B14 and the annular groove a13 are connected in sequence to form a square pattern), i.e., the three sealing rings B7 and the sealing ring A6 are arranged in a square shape, so that the balance between the rotary disc 2 and the housing 1 can be ensured, and. In other embodiments, the number of the annular grooves B14 and the arrangement of the annular grooves B14 and the annular grooves a13 may be adjusted to ensure that the balance between the turntable 2 and the housing 1 can be maintained.

In this embodiment, the dimensions of the annular groove B14 and the annular groove a13 are the same, and the specifications of the seal ring B7 and the seal ring a6 are also the same.

As shown in fig. 3, a chamfer a15 is formed at a connection position between the upper end surface (highest end surface) of the lower shroud shell 102 and the groove wall of the annular groove a13, and a chamfer B16 is formed at a connection position between the upper end surface (highest end surface) of the lower shroud shell 102 and the groove wall of the annular groove B14; the existence of chamfer A15 can further reduce the cross-cut force that sealing washer A6 received in carousel 2 rotation process, prolongs sealing washer A6's life, and the existence of chamfer B16 can reduce the cross-cut force that sealing washer B7 received in carousel 2 rotation process, prolongs sealing washer B7's life.

As shown in fig. 2, in the present embodiment, the periphery of the lower port of the vent hole 11 is recessed, and the upper end of the connector 3 is inserted and fixed in the recessed portion (e.g., by interference fit), so that the connector 3 is mounted on the bottom of the lower casing 102. In other embodiments, the connector 3 may be fixed to the bottom of the lower housing 102 by a snap-fit.

As shown in fig. 2, a through hole 31 is formed on the joint 3, the upper end of the through hole 31 is communicated with the vent hole 11, and the lower end of the through hole 31 is communicated with the outside; the air regulating valve can be conveniently installed on other equipment, such as a pump body, through the joint 3.

As shown in FIG. 2, the lower end of the through hole 31 extends out of the joint 3 to form a protrusion 32, and the upper part of the one-way nozzle 4 is sleeved on the protrusion 32, so that the one-way nozzle 4 can prevent air, liquid and the like from flowing backwards.

As shown in FIG. 5, the one-way nozzle 4 is made of elastic material, the lower part of the one-way nozzle 4 is in a flat shape which is inwardly contracted, the lower end of the one-way nozzle 4 is provided with a gap, the gap at the lower end of the one-way nozzle 4 is in a closed state in a natural state, when air flows at the upper end of the one-way nozzle 4, the gap at the lower end of the one-way nozzle 4 is slightly opened under the impact of the air flow, air passes through, when air does not flow at the upper end of the one-way nozzle 4, the gap at the lower end of the one-way nozzle 4 is closed, and in the natural state, because the lower part of the one-way nozzle 4 is in the flat shape which is inwardly contracted, the gap at the lower end of the one-way nozzle 4 cannot be opened, that is, the air at the lower part of the one-way nozzle 4 cannot enter the one-way nozzle 4, when, Liquid, etc. is refluxed.

As shown in fig. 1 and 6, the upper part of the sleeve 5 is sleeved on the joint 3, and the sleeve 5 is detachably connected with the joint 3.

As shown in fig. 2, two plugging holes a52 and B53 are formed at the upper end of the sleeve 5, the number of the plugging holes a52 is two, the number of the plugging holes B53 is two, the two plugging holes B53 are coaxially arranged, a groove 33 is formed on the joint 3, and the position of the groove 33 is matched with the positions of the plugging holes a52 and B53 on the sleeve 5.

As shown in fig. 2, the lower part of the joint 3 is inserted into the sleeve 5, the groove 33 of the joint 3 is aligned with the insertion hole a52 and the insertion hole B53 of the sleeve 5, then the two free ends of the U-shaped insertion pin 8 are inserted into the insertion hole a52 and the insertion hole B53, respectively, one free end of the insertion pin 8 sequentially passes through the insertion hole a52 on the left side, the groove 33, and the insertion hole a52 on the right side, and the other free end of the insertion pin 8 sequentially passes through the insertion hole B53 on the left side, the groove 33, and the insertion hole B53 on the right side, so that the insertion pin 8 can connect the sleeve 5 and the joint 3 together, and the assembly and disassembly are convenient, and in addition, a sealing ring can be installed between the joint 3 and the inner wall of the sleeve 5 to prevent air from escaping.

As shown in fig. 2, the side of the cannula 5 may be provided with (e.g. integrally formed with) a connector 51, the connector 51 communicating with the lumen channel of the cannula 5, such as: milk lid machine is last to be installed the utility model discloses a during air regulating valve, the lower part of sleeve pipe 5 is installed on the pump body of milk lid machine, and the lower part of sleeve pipe 5 is installed on the pan feeding mouth of the pump body, can install the former feed cylinder intercommunication of pipeline and milk lid machine on connector 51, and the pump body can be with the milk in the former feed cylinder cover stoste suction pump body, simultaneously, during the external air can sneak into the milk in the pump body and cover the stoste in step through air regulating valve.

The lower part of the sleeve 5 can be formed with external threads to facilitate connection with other equipment.

Fig. 6 and 7 schematically show a state in which the air hole is displaced from the air vent hole 11 in the air adjustment valve shown in fig. 1.

Fig. 8 and 9 schematically show a state in which the air hole B22 is aligned with the vent hole 11 in the air adjustment valve shown in fig. 1.

The knob 24 is turned to rotate the rotary disk 2 in the housing 1, and as shown in fig. 6 and 7, the air holes (air hole a21, air hole B22, air hole C23) on the rotary disk 2 are staggered from the air holes 11 on the lower housing 102, that is: the air holes (air hole a21, air hole B22, and air hole C23) on the turntable 2 are not located in the notch 12, and at this time, the outside air cannot flow in from the upper part of the air vent hole 11, and the air adjustment valve is in a closed state.

Turning the handle 24, the turntable 2 rotates in the housing 1, as shown in fig. 8 and 9, and the air holes (air hole a21, air hole B22, air hole C23) on the turntable 2 are aligned with the air holes 11 on the lower housing 102, such as: the air hole B22 on the rotary table 2 is aligned with the air hole 11, namely: the air hole B22 on the rotary disk 2 is completely located in the notch 12, and at this time, the outside air can flow into the vent hole 11 through the air hole B22, further flow through the through hole 31 on the joint 3, and flow out from the lower end of the one-way nozzle 4, and flow into the required space or liquid (such as ice cream slurry, milk cover stock solution) through the lower end of the sleeve 5.

As shown in fig. 1, the present invention is installed on an external device, such as a milk cap machine, when the air adjustment valve of the present invention is installed on the milk cap machine, the lower portion of the sleeve 5 is installed on the feeding port of the pump body of the milk cap machine, the connecting head 51 is provided with a pipeline communicated with the raw material cylinder of the milk cap machine, the pump body can pump the raw milk cap liquid in the raw material cylinder into the pump body, and simultaneously, the external air can be mixed into the raw milk cap liquid in the pump body synchronously through the air adjustment valve of the present invention, the air adjustment valve can adjust the air amount entering the pump body, and according to the requirement of the puffing rate of the milk cap, the air amount flowing into the pump body can be adjusted through the air adjustment valve, so as to adaptively adjust the ratio of the air in the raw milk cap liquid to the raw milk cap liquid, and make the; when the air quantity entering the pump body needs to be adjusted, the turning handle 24 is turned, the rotary disc 2 rotates in the housing 1, when the air holes (air hole A21, air hole B22 or air hole C23) indicated by corresponding gear marks ('1', '2' or '3') on the rotary disc 2 are completely positioned in the notch 12, the turning handle 24 is stopped, at the moment, the corresponding air holes (air hole A21, air hole B22 or air hole C23) on the rotary disc 2 are aligned with the vent holes 11 on the lower housing 102, outside air can enter the vent holes 11 through the corresponding air holes on the rotary disc 2 and finally flows out of the bottom of the sleeve 5 to the pump body, so that the milk cover stock solution entering the pump body is obtained, the inner diameter sizes of the air holes A21, the air holes B22 and the air holes C23 on the rotary disc 2 are different, the turning handle 24 can be adjusted according to the required air quantity or air ratio, the operation is simple, the controllability and the structure is simple, the manufacturing cost is low, when the air needs to be cut off from entering the pump body, namely the air regulating valve needs to be closed, only the rotating handle 24 needs to be turned, and the air holes (the air hole A21, the air hole B22 or the air hole C23) on the rotating disc 2 are turned out from the notch 12.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (10)

1. The air adjusting valve is characterized by comprising a housing (1) and a rotary table (2), wherein the upper part of the housing (1) is opened, the rotary table (2) is arranged in the housing (1), the bottom of the rotary table (2) is contacted with the inner bottom of the housing (1), the bottom of the housing (1) is provided with a longitudinal vent hole (11), the rotary table (2) is provided with a longitudinal air hole, the rotary table (2) is provided with a rotary handle (24), the rotary handle (24) extends out of the opening of the housing (1),

when the rotary disc (2) is subjected to a rotating force, the rotary disc (2) rotates in the housing (1) to enable the air holes to be aligned with the air holes (11) or staggered with the air holes (11).

2. The air adjustment valve according to claim 1, wherein the air hole includes an air hole a (21), an air hole B (22), and an air hole C (23), an inner diameter of the air hole C (23) is larger than an inner diameter of the air hole B (22), and an inner diameter of the air hole B (22) is larger than an inner diameter of the air hole a (21).

3. An air adjustment valve according to claim 2, characterized in that the upper open circumferential wall of the housing (1) is provided with a notch (12), said notch (12) being aligned with the vent hole (11).

4. The air regulating valve according to claim 1, further comprising a joint (3), wherein the joint (3) is arranged on the outer bottom of the housing (1), a through hole (31) is formed in the joint (3), one end of the through hole (31) is communicated with the vent hole (11), and the other end of the through hole (31) is communicated with the outside.

5. The air regulating valve according to claim 4, further comprising a one-way nozzle (4), wherein the other end of the through hole (31) extends out of the joint (3) to form a protrusion (32), and the one-way nozzle (4) is sleeved on the protrusion (32).

6. The air regulating valve according to claim 4, further comprising a sleeve (5), wherein the sleeve (5) is sleeved on the joint (3), and the sleeve (5) is detachably connected with the joint (3).

7. The air regulating valve according to any one of claims 1-6, further comprising a sealing ring A (6), wherein the periphery of one end of the vent hole (11) close to the rotary disc (2) is provided with an annular groove A (13), and the sealing ring A (6) is arranged in the annular groove A (13).

8. Air regulating valve according to claim 7, characterized in that the end of the air hole close to the bottom inside the casing (1) is flared.

9. An air regulating valve according to claim 7, further comprising three sealing rings B (7), wherein three annular grooves B (14) are provided on the inner bottom of the housing (1), one sealing ring B (7) is provided in each annular groove B (14), and the three annular grooves B (14) and the annular groove A (13) are arranged in a square shape.

10. An air adjustment valve according to claim 9, characterized in that the connection between the inner bottom surface of the casing (1) and the wall of the annular groove a (13) is provided with a chamfer a (15) and the connection between the inner bottom surface of the casing (1) and the wall of the annular groove B (14) is provided with a chamfer B (16).

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