TW201603756A - Pneumatic regulation valve and air mattress assembly having the pneumatic regulation valve - Google Patents

Abstract

A pneumatic regulation valve comprises a gas passage tube, a plug member, an elastic member and an adjustment member, wherein the gas passage tube is connected with the adjustment member and includes a gas inlet and at least one first opening. The first opening is arranged between the gas inlet and the adjustment member. The plug member is disposed in the gas passage tube and has a blocking portion. The blocking portion includes a first end close to the gas inlet and a second end away from the gas inlet. The first end and the second end are located at two sides of the first opening, respectively. The elastic member is arranged between the plug member and the adjustment member.

Description

Air pressure regulating valve and air bed combination having the air pressure regulating valve

The present invention relates to a gas valve, and more particularly to a gas pressure regulating valve for air bed pressure regulation.

China's new patent publication No. M241551 discloses a bleed pressure regulating valve having a guide groove formed on a cone and a curved spring disposed in the joint, wherein the guide groove can increase the gap between the cone and the joint, and The curved spring can vibrate under the action of high pressure gas and tend to a certain angle. The above two structural designs reduce the collision frequency between gas molecules and reduce noise.

In addition, China's new patent publication No. M426690 discloses a pressure regulating valve which sequentially houses a ball and a spring inside the connecting tube, and the coil diameter of the middle portion of the spring is larger than the diameter of the coil at both ends, thereby shortening the inner wall surface of the spring and the connecting tube The gap between them is to reduce the vibration amplitude of the spring and prevent noise generation, and the spherical ball can provide gas-stable gas pressure regulation through the air inlet to prevent the gas pressure inside the pressure device from being unstable.

Although the foregoing prior art has proposed various designs to reduce noise, such designs are still unsatisfactory.

One of the main objects of the present invention is to provide a gas pressure regulating valve which is different from the prior art and which has the advantage of reducing noise generation during operation.

In order to achieve the foregoing objective, the present invention provides a gas pressure regulating valve including a gas flow pipe, a plug member, an elastic member and an adjusting member, wherein the gas flow pipe is connected to the adjusting member and has an air inlet and At least one first opening, the first opening is between the air inlet and the adjusting member; the plug is disposed in the gas flow tube and has a stopping portion, the stopping portion has a close a first end of the air inlet and a second end away from the air inlet, and the first end and the second end are respectively located at two sides of the first opening; the elastic member is disposed on the plug and Between the adjustments.

In addition, the present invention provides a gas pressure regulating valve including a gas flow pipe, a plug member, an elastic member and an adjusting member, wherein the gas flow pipe is connected to the adjusting member and has an air inlet and at least one An opening, the first opening is between the air inlet and the adjusting member; the plug is disposed in the gas flow tube and has a stopping portion, the stopping portion has a proximity to the air inlet a first end of the mouth and a second end remote from the air inlet, wherein the position of the plug member is changeable between an exhaust state and a non-exhaust state, and the plug is in the two states The maximum width portion is between the first opening and the elastic member.

Furthermore, the present invention provides an air bed combination comprising: an air bed body having a plurality of gas strips; at least one of the foregoing air pressure regulating valves in gas communication with at least one of the plurality of gas strips; and an operating unit having a knob for controlling the pressure adjustment of the air bed body, and the knob is coupled with the adjusting member of the air pressure adjusting valve to adjust a force applied by the elastic member to the plug member.

By the structural design of the plug and its relative positional relationship with the first opening, the first end of the plug stop will be displaced inwardly under the action of the high pressure gas, so that the air inlet is from the air inlet. The high pressure gas is allowed to enter the gas flow pipe through the gap between the plug stopper and the inner wall of the gas flow pipe and is discharged through the first opening, at which time the second end of the plug stop is located at the first opening relative to the first opening On the opposite side of the air inlet, it occupies a part of the space in the passage of the gas flow pipe, so that the high pressure gas does not easily pass through the second end of the stopper stop to form a turbulent flow or cause vibration of the elastic member and the adjusting member, thereby reducing the cause The noise caused by component vibration also reduces the noise caused by gas turbulence.

One of the main features of the present invention is that, in the vented or non-vented state, the channel defined in the gas flow tube is mostly blocked by the plug near the other side of the first opening opposite to the inlet. Or occupy, can avoid the passage of gas and cause noise.

It is to be understood that the foregoing general description and the claims

In order to further illustrate the design concept and operation principle of the present invention, the structural design and operation state of each embodiment will be described below with reference to the drawings. It should be understood, however, that the present invention is not intended to be limited by the scope of the invention, the invention, or the

Please refer to FIG. 1, which is an exploded perspective view of a gas pressure regulating valve according to an embodiment of the present invention. In this embodiment, the air pressure regulating valve 1 mainly includes a gas flow pipe 10, a plug member 20, an elastic member 30, and an adjusting member 40. The plug member 20 is installed in the gas flow pipe 10, and one end of the elastic member 30 utilizes an elastic force. The plug 20 is pressed against, and the other end of the elastic member 30 is supported by the adjusting member 40, and the adjusting member 40 is connected to the gas flow tube 10 in an adjustable manner.

In order to succinctly describe the dimensional relationship of each component, the term "width" is defined as the maximum length of the cross-sectional area obtained by cross-sectioning the component in a direction perpendicular to the longitudinal direction of the gas flow tube 10. In general, "width" is synonymous with "cross-sectional area" and can be used interchangeably. If an element has a cylindrical or similar structure, the width of the element or part of the element is the diameter of its cross section.

The gas flow tube 10 is a hollow tubular structure shaped like a syringe, and an internal space for accommodating other components such as the plug member 20 and the elastic member 30 is formed, and a thread 17 is formed on one end inner wall for corresponding connection. Adjustment member 40. The gas distribution tube 10 may have a fixing ring 10c, and a fixing hole 10d is formed on the gas distribution tube 10 for fixing the gas flow tube 10 to the use environment by screws or in the use environment, depending on the installation or use. Other components work together. As shown in FIG. 1 , in one embodiment, the hollow tubular structure of the gas flow tube 10 may be composed of a first tube body 10a and a second tube body 10b that are connected or integrally formed with each other, and have different internal space sizes and shape. For example, a first space may be defined inside the first pipe body 10a as a gas passage, and the gas may enter the gas flow pipe 10 from the air inlet 11 at one end of the first pipe body 10a; the inside of the second pipe body 10b may define a first The two spaces serve as the accommodation space for the components. In addition, at least one opening is formed in the pipe wall of the second pipe body 10b. In this embodiment, the first opening hole 12 and the second opening hole 13 are respectively formed as the main exhaust hole and the auxiliary exhaust hole. The manner of gas flow and the mode of operation of each component will be further described in detail later with a cross-sectional view.

The plug 20 is mounted in the gas flow tube 10, for example, one end is abutted by the elastic member 30 and is located at the boundary between the first space and the second space. The plug member 20 has a stop portion 21 for closing the first space. Under the action of the high pressure gas, the stopper portion 21 will be displaced by being pushed toward the elastic member 30, so that the high pressure gas can pass through the gap between the stopper portion 21 and the inner wall of the gas flow tube 10, and via, for example, the first opening 12 discharge. To achieve the purpose of closing the first space, the stop portion 21 may have a bullet-like structure as shown in FIG. 1 (such as a structure similar to a one-half long ellipsoid) having a first end 21a and a second end 21b. As used herein, unless otherwise indicated, the term "end" refers to the end of a structure, which may be a point, a face, or a structural region, depending on the geometry of the structure being referred to. Taking the structure shown in FIG. 1 as an example, the first end 21a of the stopper portion 21 is a tip end portion of the bullet-shaped structure, and the second end 21b of the stopper portion 21 is a flat surface of the bullet-like structure. In order to achieve a better sealing effect, the first end 21a of the stopping portion 21 can extend into the first space, so that the inner wall of the first pipe body 10a and the annular surface of the stopping portion 21 are hermetically combined to avoid The gas escapes from the first opening 12 through the plug 20 in a non-vented state. The second end 21b of the stopping portion 21 may be a circular plane and located in the second space, and preferably has a larger cross-sectional area in the structure of the stopping portion 21 than the other portions, for example, substantially equal to or only slightly It is smaller than the cross-sectional area of the inner wall of the gas flow pipe 10 at the set position, thereby reducing or suppressing the passage of gas through the second end 21b of the stopper portion 21 to achieve the effect of suppressing or reducing noise. In order to fasten the connection plug 20 and the elastic member 30, the plug member 20 may have a connecting portion 22, such as a cylindrical structure, having a diameter slightly larger than the inner diameter of one end of the elastic member 30, so that the plug member 20 presents a mushroom-like structure. The elastic member 30 can be connected to the plug member 20 in a tight fit manner. As used herein, unless otherwise indicated, the term "compact" means that the two structures are intimately joined to each other. In general, it is necessary to deform at least one of the two structures by an external force to achieve a tight fit. Taking the elastic structure as an example, in the tightly fitting state, the elastic structure exhibits a deformed state of stretching or compression.

The elastic member 30 may be a long spring structure, one end of which is abutted against the plug 20 and the other end of which is abutted against the adjusting member 40. In one embodiment, the two ends of the elastic member 30 are respectively sleeved on the connecting portion 22 of the plug member 20 and the connecting portion 43 of the adjusting member 40 in a tightly fitting manner. The elastic member 30 is installed in the gas flow pipe 10, for example, in the accommodating space defined by the second pipe body 10b, and its main purpose is to elastically press against the plug member 20, so that the plug member 20 can tightly close the gas flow pipe. The gas passage in the 10 prevents the gas from leaking through the opening in the gas flow pipe 10. With this design, only when the pressure generated by the high pressure gas is greater than the elastic urging force of the elastic member 30, the plug member 20 is pushed toward the elastic member 30, so that the gas can be circulated by the plug member 20 and the gas. The gap between the inner walls of the tube 10 passes through the plug 20 and is discharged, for example, by the first opening 12. In an embodiment, the middle portion 31 of the elastic member 30 may have a larger width than the other portions, thereby gradually reducing the vibration of the elastic member 30 and reducing noise by the gap between the elastic member 30 and the inner wall of the gas flow tube 10. .

The adjustment member 40 is typically coupled to the end of the gas flow tube 10 and functions to abut the resilient member 30 such that the resilient member 30 can be pressed against the plug member 20. The structure of the adjusting member 40 can be divided into a thread 41, an engaging portion 42 and a connecting portion 43. The thread 41 can be correspondingly engaged with the thread 17 of the gas flow tube 10, and can be engaged with the gas adjusting tube 40 and the gas flow tube 10. The tightness or depth further adjusts the elastic force of the elastic member 30 against the plug member 20. The shape and size of the connecting portion 43 can be similar to the connecting portion 22 of the plug member 20, and the function is also to provide the elastic member 30 for the fastening. A plurality of tooth structures can be formed on the engaging portion 42 for interlocking with other external components, and the user can adjust the bonding relationship between the adjusting member 40 and the gas flow tube 10 by using the external components, thereby changing the elastic member 30 to the plug member. 20 The magnitude of the applied force.

The creative features, structural design and operation of the present invention will be further described below in conjunction with a cross-sectional view of an embodiment of the present invention.

Please refer to FIG. 2 and FIG. 3 , which are the spatial relationships of the components of the air pressure adjusting valve 1 in a normal state and in an exhaust state, respectively. In the normal state, no high pressure gas enters the air pressure regulating valve 1 from the air inlet 11 at this time, or the pressure of the high pressure gas is less than the elastic force of the elastic member 30 set by the user through the adjusting member 40, so that the plug 20 stops. The stopper portion 21 is airtightly inserted into the hollow passage of the gas flow pipe 10 and is hermetically connected to the inner wall of the gas flow pipe 10. In order to insert the plug 20 in the hollow passage of the gas flow pipe 10, for example between the first space 14 and the second space 15, a resisting structure 16, such as a convex, may be formed on the inner wall of the gas flow pipe 10. A block or other similar structure is used to position the plug 20 at a particular location within the gas flow tube 10 by the resilient member 30 and the abutment structure 16. In the present embodiment, the arcuate inner wall at the junction of the first space 14 and the second space 15 is used as the abutting structure 16.

As described above, the first space 14 and the second space 15 may be formed in the gas flow pipe 10, wherein the first space 14 serves as a gas passage for the gas to enter the gas flow pipe 10 from the air inlet 11, and the second space 15 As the accommodation space of the component. In the present embodiment, the first space 14 is a gas passage that is diverging inward from the air inlet 11 to achieve a function of guiding the flow, so that the high pressure gas gently pushes against the plug 20 and compresses the elasticity inward. The member 30, thereby obtaining a relatively gentle deflation effect to avoid sag, and prolonging the service life of components such as the plug member 20, the elastic member 30, and the like.

In this embodiment, the stopper portion 21 of the plug member 20 has a first end 21a and a second end 21b, wherein the first end 21a can have a gas acting means, such as a plane, a concave surface, a convex surface, etc., which can be When the high-pressure gas enters the gas flow pipe 10 from the gas inlet port 11, most of the high-pressure gas acts on the plug member 20 in a manner substantially perpendicular to the first end 21a, and the gas positive force acting on the plug member 20 is caused. Greater than shear stress. For example, the gas action means can be achieved by designing the first end 21a as a blunt end, such as the flat surface shown in FIG. The advantages of this design are as follows: when the plug 20 is displaced inward due to the pushing of the high pressure gas, compared to the spherical or conical design, in the case of the same displacement, the flat surface and the gas flow tube 10 A large gap can be formed between the pipe walls, so the air bleed efficiency which can be achieved per unit time is higher than other shapes; moreover, if the first end 21a of the stopper portion 21 is designed as a gas passage perpendicular to the first space 14 The plane is such that when the high-pressure gas enters the first space 14, most of the gas molecules impinge on the plug 20 in a direction perpendicular to the plane, so that the structural design is caused by the same gas flow or gas pressure. The displacement of the plug 20 is greater than that of other shapes, so that the gap formed between the plug 20 and the wall of the gas flow tube 10 is relatively large, thereby improving the efficiency of the air bleed; The design will cause the high pressure gas to be greatly steered without moving into the gas flow tube 10, but discharged from the vent holes on both sides, thereby reducing the high pressure gas passing through the plug member 20 causing vibration or formation of other components in the gas flow tube 10. tangled Situation.

In this embodiment, the size of each component may have the following relationship, wherein the term "width" is defined as before, that is, the maximum length of the cross-sectional area obtained by cross-section perpendicular to the longitudinal direction of the gas flow tube 10, if The cross section is a circular cross section, and the width represents the diameter of the circular cross section.

The width of the first space 14 near one side of the air inlet 11 is smaller than the other side, and the width of the first end 21a of the stopping portion 21 is slightly smaller than the width of the first space 14 away from one side of the air inlet 11, The blocking portion 21 is partially extended into the first space 14. The width of the second end 21b of the stopper portion 21 is larger than other portions of the stopper portion 21, and is substantially equal to or slightly smaller than the inner diameter of the gas flow tube 10 at the same, so that the inner wall of the gas flow tube 10 and the stopper portion 21 There is almost no gap between the second ends 21b, which can reduce the noise generated by the plug 20 striking the gas flow tube 10 due to vibration, and can avoid the noise generated by the turbulent flow of the high-pressure gas after passing through the plug 20. Or the noise caused by the vibration of the elastic member 30. In addition, in the embodiment, the first end 21a and the second end 21b of the stopping portion 21 are respectively located at two sides of the first opening 12. In other words, as shown in FIG. 2 , the first end 21 a and the second end 21 b of the stopping portion 21 are located outside the first opening 12 and are respectively located below the first opening 12 and are not respectively vented. Above, for example, the position of the first end 21a is slightly lower than the first opening 12 for sealing the first space 14, and the position of the second end 21b is slightly higher than the first opening 12 to avoid gas passage, as will be described later. .

The inner diameter or the width of the two ends of the elastic member 30 are slightly smaller than the connecting portion 22 of the plug member 20 and the connecting portion 43 of the adjusting member 40. Therefore, the elastic member 30 is biased and sleeved on the connecting portion 22 and the connecting portion 43. The elastic member 30 can be coupled to the plug member 20 and the adjusting member 40 in a tightly fitting manner to avoid loosening of the elastic member 30 after a period of use or to reduce noise generated by vibration between components. Further, the width of the middle portion 31 of the elastic member 30 is substantially equal to or slightly smaller than the inner diameter of the gas flow tube 10, so that there is almost no gap between the inner wall of the gas flow tube 10 and the middle portion 31 of the elastic member 30, thereby reducing The elastic member 30 hits the noise generated by the gas flow pipe 10 due to the vibration. However, considering the friction generated when the component is actuated, the width of the second end 21b of the stopper portion 21 and the width of the middle portion 31 of the elastic member 30 may be slightly smaller than the inner diameter of the gas flow tube 10 at the place to avoid occurrence during use. The component is not rubbed or actuated, and the life of the component is extended.

Please refer to FIG. 3, which is a cross-sectional view of the gas pressure regulating valve 1 under the action of high pressure gas (indicated by a broken line arrow). In the deflated state, the high pressure gas flows from the air bed into the air inlet 11 and passes through the first space 14 to push the plug 20. If the pressure of the gas is greater than the elastic force of the ejector plug 20 of the elastic member 30, the plug member 20 will be displaced by the high pressure gas inwardly, and a gap is formed between the plug member 20 and the inner wall of the gas flow tube 10 at this time. The gas is allowed to flow through and is discharged from the vent hole (for example, the first opening 12) to achieve the function of deflation.

In the present embodiment, the gas flow pipe 10 is provided with two first openings 12, and since the two first openings 12 are arranged in an axially symmetric manner with respect to the gas flow pipe 10, the gas can have substantially the same flow rate. They are respectively vented by the two first openings 12. Further, in the present embodiment, since the second end 21b of the stopper portion 21 has a larger width than the first end 21a, and the second end 21b of the stopper portion 21 and the tube wall of the gas flow tube 10 have almost no or only a minimum The gap is so that most of the gas is redirected by the first opening 12 after striking the first end 21a of the stop portion 21. However, in a few cases, there may still be a small amount of gas passing through the second end 21b of the stop portion 21. At this time, if too much high pressure gas is accumulated in the space above the plug member 20, a downward push will be formed in this space. The gas pressure of the plug member 20 causes a problem of poor exhaust gas. Therefore, a second opening 13 can be further formed in the wall of the gas flow pipe 10 above the first opening 12 as a secondary venting hole for discharging a small amount of the first opening 12 and not passing through the stopping portion. 21 gas. In the present embodiment, the number and size of the second openings 13 are not particularly limited, but generally two second openings 13 disposed axially symmetrically with respect to the gas flow tube 10 may be employed.

Hereinafter, the use environment of the gas pressure regulating valve 1 of the present invention will be described by taking an air bed as an example. As shown in FIG. 4, the air pressure regulating valve 1 can be used in an air bed combination 100, and the air bed combination 100 further includes an air bed body 50 and an operating unit 60, wherein the air pressure regulating valve 1 and the air bed body 50 are at least one gas strip 51. The gas communication is formed, so that when the air bed body 50 is deflated, the high pressure gas in the gas strip 51 can enter the air inlet port 11 of the air pressure adjusting valve 1 to perform the aforementioned deflation procedure. Further, the air pressure adjusting valve 1 can be interlocked with the knob 61 of the operating unit 60 through, for example, the engaging portion 42 of the adjusting member 40, and the user can adjust the elastic force of the elastic member 30 in the air pressure adjusting valve 1 by rotating the knob 61. In general, the position of the air pressure adjusting valve 1 is not particularly limited, and it can be mounted in the air bed body 50 or in the operating unit 60, for example, through the fixing hole 10d and locked in the knob 61. Further, the manner of interlocking between the adjusting member 40 of the air pressure adjusting valve 1 and the knob 61 may differ depending on the convenience in use. For example, it can be designed that when the user rotates the knob 61, for example, 10 degrees, the adjusting member 40 can also rotate in an equiangular rotation relationship of 10 degrees; or when the user rotates the knob 61 by 10 degrees, the adjusting member 40 rotates correspondingly. 2 or 5 degree proportional rotation relationship, thereby allowing the user to finely adjust the air pressure regulating valve 1 with higher precision; or when the user rotates the knob 61 by 0-10 degrees, the adjusting member 40 does not rotate correspondingly, and When the user rotates the knob 61 by 10-20 degrees, the adjustment member 40 corresponds to a segmented rotation relationship of 1, 2 or 5 degrees. Since the design of the interlocking structure used to achieve various rotation relationships is one of ordinary people in the art who can complete without undue experimentation, it will not be described here.

The above embodiments are merely illustrative in nature and are not intended to limit the application or the application or use of the embodiments. As used herein, the term "exemplary" means "as an example, instance or description." Any of the exemplary embodiments herein is not necessarily to be construed as preferred or advantageous over other embodiments.

In addition, while at least one exemplary embodiment has been presented in the foregoing embodiments, it should be understood that a It should also be understood that the embodiments described herein are not intended to limit the scope, use, or configuration of the claimed application. Conversely, the foregoing embodiments may provide one or more embodiments of the invention in the form of the invention. Further, various changes in the function and arrangement of the elements may be made without departing from the scope of the invention, and the scope of the application includes the known equivalents and all the foreseeable equivalents in the application of the present application.

1‧‧‧Pneumatic control valve
10‧‧‧ gas flow tube
10a‧‧‧First body
10b‧‧‧Second body
10c‧‧‧Fixed ring
10d‧‧‧Fixed holes
11‧‧‧air inlet
12‧‧‧First opening
13‧‧‧Second opening
14‧‧‧First space
15‧‧‧Second space
16‧‧‧Resist structure
17‧‧‧ thread
20‧‧‧plugs
21‧‧‧stop
21a‧‧‧ first end
21b‧‧‧second end
22‧‧‧Connecting Department
30‧‧‧Flexible parts
31‧‧‧ middle section
40‧‧‧Adjustment
41‧‧‧ thread
42‧‧‧Meshing Department
43‧‧‧Connecting Department
100‧‧‧ air bed combination
50‧‧‧ air bed body
51‧‧‧ gas strips
60‧‧‧Operating unit
61‧‧‧ knob

1 is an exploded perspective view of a gas pressure regulating valve according to an exemplary embodiment of the present invention.

Figure 2 is a cross-sectional view showing a gas pressure regulating valve in a general state according to an exemplary embodiment of the present invention.

3 is a cross-sectional view of a gas pressure regulating valve in an exhaust state according to an exemplary embodiment of the present invention.

4 is a perspective view of an air bed combination according to an exemplary embodiment of the present invention.

1‧‧‧Pneumatic control valve

10‧‧‧ gas flow tube

10a‧‧‧First body

10b‧‧‧Second body

10c‧‧‧Fixed ring

10d‧‧‧Fixed holes

11‧‧‧air inlet

12‧‧‧First opening

13‧‧‧Second opening

17‧‧‧ thread

20‧‧‧plugs

21‧‧‧stop

21a‧‧‧ first end

21b‧‧‧second end

22‧‧‧Connecting Department

30‧‧‧Flexible parts

31‧‧‧ middle section

40‧‧‧Adjustment

41‧‧‧ thread

42‧‧‧Meshing Department

43‧‧‧Connecting Department

Claims (15)

A gas pressure regulating valve includes a gas flow pipe, a plug member, an elastic member and an adjusting member, wherein the gas flow pipe is connected to the adjusting member, and has an air inlet and at least one first opening, the first An opening is disposed between the air inlet and the adjusting member; the plug member is disposed in the gas flow tube and has a stopping portion having a first end adjacent to the air inlet and The first end and the second end are respectively located at two sides of the first opening; the elastic member is disposed between the plug and the adjusting member. The gas pressure regulating valve of claim 1, wherein the gas flow tube further comprises at least one second opening, the second opening being interposed between the first opening and the adjusting member. The gas pressure regulating valve of claim 2, wherein the gas flow tube comprises two first openings and two second openings, the first openings and the second openings are respectively opposite to the gas flow tube Axial symmetrical setting. The air pressure regulating valve according to claim 1, wherein the first end of the stopping portion has a gas acting means for causing the gas entering the gas flow pipe from the air inlet to have a positive force greater than a shear stress Act on the plug. The air pressure regulating valve according to claim 1, wherein the first end of the stopping portion is a blunt end. A gas pressure regulating valve according to claim 5, wherein the blunt end has a flat surface. The air pressure regulating valve of claim 1, wherein the gas flow tube defines a first space and a second space, and the first space is a gas passage that is inwardly diverging from the air inlet. The air pressure regulating valve of claim 7, wherein the first end and the second end of the stopping portion are located in the first space and the second space, respectively. The air pressure regulating valve according to claim 7, wherein the gas flow pipe has a resisting structure formed at a boundary between the first space and the second space, and the resisting structure and the elastic member together The piece is positioned in the gas flow tube. A gas pressure regulating valve includes a gas flow pipe, a plug member, an elastic member and an adjusting member, wherein the gas flow pipe is connected to the adjusting member, and has an air inlet and at least one first opening, the first An opening is disposed between the air inlet and the adjusting member; the plug member is disposed in the gas flow tube and has a stopping portion having a first end adjacent to the air inlet and a second end of the air inlet, wherein the position of the plug is changeable between an exhaust state and a non-exhaust state, and in the foregoing two states, the maximum width portion of the plug is integrated Between the first opening and the elastic member. The air pressure regulating valve of claim 10, wherein the gas flow tube defines a first space and a second space, the first space is a gas passage that is inwardly diverging from the air inlet, the first The two spaces are for accommodating the plug and the accommodating space of the elastic member. The air pressure regulating valve according to claim 11, wherein the gas flow pipe has a resisting structure formed at a boundary between the first space and the second space, and the resisting structure and the elastic member together The piece is positioned in the gas flow tube. The gas pressure regulating valve of claim 10, wherein the gas flow tube further comprises at least one second opening, the second opening is interposed between the first opening and the adjusting member, and the stopping portion is The maximum width portion is between the first opening and the second opening. An air bed combination comprising: an air bed body having a plurality of air strips; at least one air pressure regulating valve as claimed in claim 1 in gas communication with at least one of the plurality of gas strips; and an operating unit having a a knob for controlling pressure adjustment of the air bed body, and the knob is coupled with the adjusting member of the air pressure adjusting valve to adjust a force applied by the elastic member to the plug member. The air bed combination according to claim 14, wherein the knob and the adjusting member of the air pressure regulating valve are interlocked in a proportional rotation relationship, so that the adjusting member can rotate correspondingly to a smaller angle when the knob is rotated.