CN115707893A - Voltage stabilizer - Google Patents

Abstract

A voltage stabilizer comprises a voltage stabilizer, wherein the voltage stabilizer comprises a valve body, a pressure adjusting assembly and a switch assembly; wherein, the valve body is provided with an air inlet part, a decompression chamber and an air outlet part, wherein the air inlet part is provided with an air inlet interface which is used for connecting an air outlet of a portable gas tank; the decompression chamber is communicated with the gas inlet part; the air outlet part is communicated with the decompression chamber and is provided with an air outlet interface; the pressure adjusting assembly is arranged in the decompression chamber and used for adjusting the pressure of the gas output by the portable gas tank so as to form output gas with preset pressure; the switch assembly is arranged on the air outlet part and positioned between the decompression chamber and the air outlet interface, and the switch assembly can be controlled to block or open the output gas. Thereby the pressure of the gas output by the portable gas tank can be adjusted.

Description

Voltage stabilizer

Technical Field

The present invention relates to gas tanks; in particular to a pressure stabilizing device for a gas tank.

Background

With the prevalence of outdoor leisure activities, camping or mountain climbing in the open air is a leisure activity far away from dust and squeak. The outdoor gas stove can be used for filling gas, and a mountain climbing gas can (clamping gas) is generally used.

When high pressure liquid gas is filled in the mountain climbing gas tank, a needle valve is generally installed at the gas outlet of the mountain climbing gas tank, and the needle valve is connected to the burner of the gas stove through a gas pipe. The gas outlet quantity is adjusted by a needle valve, so that a small amount of high-pressure gas in the mountaineering gas tank is output.

However, if the needle valve fails, a large amount of high-pressure gas inside the mountain climbing gas tank may be ejected, which may cause a large amount of gas to leak out, and may cause ignition.

Therefore, the way of adjusting the gas outlet amount of the mountain-climbing gas tank by a needle valve is still perfected and needs to be improved.

Disclosure of Invention

In view of the above, the present invention is directed to a pressure stabilizer, which can adjust the pressure of the gas output from a portable gas tank.

In order to achieve the above object, the present invention provides a pressure stabilizer for connecting an outlet of a portable gas tank, the pressure stabilizer comprising a pressure stabilizer, the pressure stabilizer including a valve body, a pressure regulating assembly and a switch assembly; the valve body is provided with an air inlet part, a decompression chamber and an air outlet part, wherein the air inlet part is provided with an air inlet connector which is connected with an air outlet of the portable gas tank; the decompression chamber is communicated with the air inlet part; the air outlet part is communicated with the decompression chamber and is provided with an air outlet interface; the pressure adjusting assembly is arranged in the decompression chamber and adjusts the gas pressure output by the portable gas tank to form output gas with a preset pressure; the switch assembly is arranged in the air outlet part and positioned between the decompression chamber and the air outlet interface, and can be controlled to block or open the output gas.

The invention has the advantages that the pressure stabilizer can reduce the pressure of the gas output by the portable gas tank and adjust the pressure, thereby outputting the stable output gas with preset pressure. The switch component in the voltage stabilizer can control the on-off of the output gas, so as to be convenient for users to use.

Drawings

Fig. 1 is a perspective view of a voltage stabilization device according to a preferred embodiment of the present invention.

Fig. 2 is an exploded perspective view of the voltage stabilizer according to the above preferred embodiment of the present invention.

Fig. 3 is another exploded perspective view of the voltage stabilization device according to the above preferred embodiment of the present invention.

Fig. 4 is an exploded perspective view of the upper cover and the regulator according to the above preferred embodiment of the present invention.

Fig. 5 is a perspective view of the voltage regulator according to the above preferred embodiment of the present invention.

Fig. 6 is an exploded perspective view of the regulator according to the above preferred embodiment of the present invention.

Fig. 7 is a front view of the voltage regulator according to the above preferred embodiment of the present invention.

Fig. 8 is another exploded perspective view of the voltage regulator according to the above preferred embodiment of the present invention.

Fig. 9 is a plan view of the voltage regulator in the above preferred embodiment of the present invention.

Fig. 10 is a sectional view in the direction 10-10 of fig. 9.

Fig. 11 is a sectional view taken in the direction 11-11 of fig. 9.

Fig. 12 is a cross-sectional view taken in the direction of 12-12 of fig. 5.

Fig. 13 is a perspective view of the control member according to the above preferred embodiment of the present invention.

Fig. 14 is a cross-sectional view taken in the direction of 14-14 of fig. 13.

Fig. 15 is a sectional view taken in the direction of 15-15 of fig. 1.

FIG. 16 is a schematic view illustrating the operation of the control member to open the side opening of the shutter.

Detailed Description

In order to more clearly illustrate the present invention, preferred embodiments are described in detail below with reference to the accompanying drawings. Referring to fig. 1 to 16, a pressure stabilizing device 1 according to a preferred embodiment of the present invention at least includes a pressure stabilizer 10, and the pressure stabilizer 10 is connected to an air outlet 100a of the portable gas tank 100. The portable gas canister 100 is exemplified by a mountain climbing gas canister (a pumping gas), and the portable gas canister is filled with high-pressure liquid gas. The regulator 10 is used to regulate the pressure of the gas output from the portable gas canister 100.

Referring to fig. 2 and fig. 3, in the present embodiment, the pressure stabilizing device 1 further includes a container 60 and an upper cover 62, and the container 60 has an upper opening 602. The container 60 is used for containing the portable gas canister 100, and the top of the portable gas canister 100 is located at the upper opening 602. The inner wall surface of the container 60 has a plurality of projections 604 around the upper opening 602.

The upper cover 62 is detachably coupled to the container 60 and closes the upper opening 602, in this embodiment, a plurality of engaging grooves 622 are disposed on the outer peripheral surface of the bottom of the upper cover 62, and the plurality of protrusions 604 of the container 60 are respectively engaged with the engaging grooves 622, so that the upper cover 62 is coupled to the container 60. The upper cover includes a cover body 64 and a bottom plate 66, a receiving space is formed between the cover body 64 and the bottom plate 66, the cover body 64 has a first opening 642 and a second opening 644, the first opening 642 is located at a side portion of the cover body 64, and the second opening 644 is located at a top portion of the cover body 64. The first opening 642 and the second opening 644 are respectively communicated with the accommodating space. The upper cover 62 is optionally provided with a hanging member 68 for a user to carry or hang the voltage stabilizer 1.

The pressure stabilizer 10 is disposed in the accommodating space of the upper cover 62, the pressure stabilizer 10 includes a valve body 12, a pressure adjusting assembly 32 and a switch assembly 42, wherein the valve body 12 has an air inlet 14, a decompression chamber 16 and an air outlet 18.

The air inlet portion 14 has an air inlet port 142 at one end, and the air inlet port 142 is connected to the air outlet 100a of the portable gas canister 100. The inner wall of the gas inlet 142 has an internal thread for screwing with an external thread around the gas outlet 100a of the portable gas canister 100. As shown in fig. 10, the air inlet portion 14 has an air inlet passage 144, the air inlet passage 144 extends along an axial direction, and one end of the air inlet passage 144 communicates with the air inlet port 142.

In this embodiment, a pressure gauge 65 is disposed on the top of the gas inlet 14, and the other end of the gas inlet channel 144 extends to the top of the gas inlet 14. The pressure gauge 65 is communicated with the other end of the gas inlet channel 144 for measuring the pressure in the gas inlet channel 144, that is, the pressure gauge 65 can measure the pressure of the gas in the portable gas container 100. The pressure gauge 65 is positioned in the second opening 644 of the upper cover 62 for the user to view the pressure indicated by the pressure gauge 65. The pressure gauge 65 may be a pointer or digital pressure gauge.

The decompression chamber 16 is located on one side of the air inlet 14, and the decompression chamber 16 has a valve port 162 therein (see fig. 10), and the decompression chamber 16 communicates with the air inlet passage 144 of the air inlet 14 via the valve port 162.

Please refer to FIG. 10 and 11, the pressure regulating unit 32 is disposed in the decompression chamber 16, and the pressure regulating unit 32 regulates the gas pressure output from the portable gas canister 100 to be depressurized and stabilized to an output gas having a predetermined pressure, which may be, for example, 280mm/H ₂ And O. In the present embodiment, the pressure adjustment assembly 32 includes a diaphragm 34, a spring 36, a moving member 38 and a shielding member 40, the diaphragm 34 divides the decompression chamber into a first air chamber 16a and a second air chamber 16b, the first air chamber 16a communicates with the air inlet channel 144 through the valve port 162, and the first air chamber 16a communicates with the air outlet 18. The spring 36 is located in the second air chamber 16b and abuts against the valve body 12 and the diaphragm 34, the moving member 38 is connected to the diaphragm 34, the shielding member 40 is pivotally connected to the valve body 12 and connected to the moving member 38, and the shielding member 40 has a shielding portion 402 located at a position corresponding to the valve port 162. Therefore, when the pressure of the gas in the portable gas canister 100 is sufficient, the diaphragm 34 is pushed toward the spring 36 to drive the shielding portion 402 of the shielding member 40 to partially open the valve port 162, so as to reduce the pressure of the first air chamber 16a and form the output gas with the predetermined pressure. As the pressure of the gas inside the portable gas canister 100 decreases, the pressure of the first air chamber 16a decreases to make the spring 36 push the diaphragm 34 to move toward the valve opening 162, so as to drive the shielding portion 402 of the shielding member to gradually move away from the valve opening 162, thereby increasing the opening degree of the valve opening 162 and maintaining the pressure in the first air chamber 16a at a stable predetermined pressure.

Portion 18 of giving vent to anger is located one side of decompression chamber 16 and intercommunication the first air chamber 16a of decompression chamber 16, portion 18 of giving vent to anger has one and gives vent to anger the interface, just it corresponds to give vent to anger interface 182 the first opening 642 of upper cover 62.

The switch assembly 42 is disposed in the gas outlet portion 18 and between the decompression chamber 16 and the gas outlet interface 182, and the switch assembly 42 can be controlled to block or open the output gas.

More specifically, referring to fig. 11 and 12, the air outlet portion 18 has a receiving hole 20, and the receiving hole has a first hole section 22, a second hole section 24 and a third hole section 26 connected in sequence along an axial direction thereof. The air outlet port 182 is located in the first hole section 22, and the first hole section 22 has a connection channel 222. The second bore section 24 is located between the first bore section 22 and the third bore section 26, the bore wall of the second bore section 24 is conical, and the bore diameter of the second bore section 24 is tapered from the first bore section 22 to the direction of the third bore section 26. The second hole section 24 forms a chamber, and the hole wall of the second hole section 24 has a side port 242 communicating with the decompression chamber 16. The third bore section 26 has a shoulder 262 at the junction with the second bore section 24. The inner wall of the connecting channel 222 (i.e. the hole wall of the first section) has a positioning ring groove 222a, and one end of the air outlet port 182 has at least one notch 182a, in this embodiment, two notches 182a are provided and communicate with the positioning ring grooves 222a. The positioning ring groove 222a has a groove wall 222b, and the groove wall 222b faces the second hole segment 24.

In addition, the air outlet portion 18 has a limiting groove 28, the limiting groove 28 is located at the radial periphery of the third hole section 26 and is communicated with the third hole section 26, and a first blocking portion 282 and a second blocking portion 284 (refer to fig. 8) are respectively formed on groove walls of the limiting groove 28. In this embodiment, the air outlet 18 is an open end 18a at the periphery of the third hole section 26, and can be combined with the periphery of the third hole section 26 in a threaded manner by a rear cover 30 to close the open end 18a.

The switch assembly 42 includes a shutter 44, the shutter 44 having a first end 442 and a second end 444 opposite to each other in the axial direction thereof, at least a portion of the shutter 44 being located in the second hole section 24 of the receiving hole 20, the shutter 44 having a shaft hole 46 and a vent hole 48 located in the radial direction, the shaft hole 46 communicating with the vent hole 48 and the outlet port 182. More specifically, the closure 44 includes an actuating section 50, a tapered section 52 and an extension section 54, the actuating section 50 has the first end 442, the tapered section 52 is connected between the actuating section 50 and the extension section 54, and the actuating section 50 is located in the first hole section 22. The tapered section 52 is located in the second bore section 24 and the outer peripheral surface of the tapered section 52 is fitted with the bore wall of the second bore section 24. The extension 54 is located in the third bore section 26, the extension 54 having the second end 444.

The axial bore 46 has an open side 462 and a closed side 464, the open side 462 is formed at the first end 442, the closed side 464 is located at the tapered section 52 between the first end 442 and the second end 444, and the vent hole 48 is located at the tapered section 52.

The first end 442 has at least one slot 442a, and in this embodiment, two slots 442a, located on opposite sides of a radial periphery of the axial bore 46. The positioning ring groove 222a of the air outlet port 182 surrounds the radial periphery of the two slots 442 a.

The switch assembly 42 further includes an elastic member 56, one end of the elastic member 56 abuts against the shoulder 262, and the other end of the elastic member 56 provides a force to the extension section 54 in a direction away from the shoulder 262, so that the outer peripheral surface of the conical section 52 can abut against the hole wall of the second hole section 24. In this embodiment, the switch assembly 42 includes a stopper, such as a stop lever 58, and the stop lever 58 is disposed on the extension of the shutter 44 and extends to the radial periphery of the extension 54. The other end of the elastic member 56 abuts against the stop lever 58. The elastic member 56 includes two blocking pieces 562 and a spring 564, the two blocking pieces 562 and the spring 564 are sleeved on the extension section 54, the spring 564 abuts between the two blocking pieces 562, one of the blocking pieces 562 constitutes one end of the elastic member 56 and abuts against the shoulder, and the other blocking piece 562 constitutes the other end of the elastic member 56 and abuts against the stop lever 58. One end of the blocking rod 58 extends into the limiting groove 28 and is located between the first blocking portion 282 and the second blocking portion 284, so as to limit the rotation angle of the closure 44.

Referring to fig. 11, 15 and 16, the shutter 44 can be operated to rotate along the axial direction between a first position P1 and a second position P2. As shown in fig. 15, in the first position P1, the outer peripheral surface of the tapered section 52 of the closure 44 closes the side port 242 to block the output gas, and the cutting slots 442a of the first end 442 of each closure 44 and the notches 182a of the outlet port 182 are located on the same reference plane (see fig. 7), so that the blocking lever 58 abuts against the first blocking portion 282. As shown in fig. 16, in the second position P2, the ventilation hole 48 communicates with the side port 242 to open the output gas, so that the output gas can be output from the gas outlet port 182, and the stopper 58 abuts against the second stopper 284.

In order to facilitate the operation of the closure 44, in this embodiment, the pressure stabilizing device 1 further includes an operating member 70, the operating member 70 has a connecting end 702, and the operating member 70 has an air duct 72 inside, one end of the air duct 72 forms an inlet 722 at the connecting end 702, the other end of the air duct 72 is used for communicating with a gas pipe 200, and the gas pipe 200 may be a flexible pipe and is connected to a gas appliance. The control member 70 is detachably connected to the outlet port 182 via the connecting end 702, and the connecting end 702 is connected to the closure 44 and the air duct 72 is communicated with the shaft hole 46. The control member 70 drives the shutter to rotate between the first position P1 and the second position P2.

More specifically, referring to fig. 13 to 16, the connecting end 702 of the control member 70 is provided with at least one positioning pin 74, and in this embodiment, there are two positioning pins 74. When the closure 44 is in the first position P1, each of the positioning pins 74 can enter the positioning ring groove 222a through each of the notches 182a of the outlet port 182, and each of the positioning pins 74 can also enter each of the cutting grooves 442a of the closure 44.

In this embodiment, the positioning pins 74 are disposed along the radial direction of the connecting end 702, each positioning pin 74 has an outer end 742 and an inner end 744, the outer end 742 protrudes from the radial periphery of the connecting end 702, and the inner end 744 extends into the air delivery duct 72. A sealing sheet 76 is arranged in the air conveying channel 72, the sealing sheet 76 is provided with a through hole 762, and the through hole 762 is communicated with the air conveying channel 72.

When the closure 44 is in the first position P1 and the connecting end 702 is connected to the closure 44, the outer end 742 of each of the positioning pins 74 enters the positioning ring groove 222a through each of the notches 182a, the inner end 744 of each of the positioning pins 74 extends into each of the cutting grooves 442a, the first end 442 of the closure 44 is positioned in the air delivery passage 72 and abuts against the sealing plate 76, and the open side 462 of the axial bore 46 is in communication with the through hole 762 and the air delivery passage 72. When the user rotates the control member 70, the inner end 744 of each positioning pin 74 pushes against the slot wall of each slot 442a to drive the shutter 44 to rotate to the second position P2 along the axial direction thereof. During the rotation, when the outer end 742 of each positioning pin 74 leaves the projected range of each notch 182a, the groove wall 222b of the positioning ring groove 222a limits the outer end 742 of each positioning pin 74 in the positioning ring groove 222a (as shown by the dashed line in fig. 16), whereby, when the closure 44 is rotated from the first position P1 to the second position P2, the positioning ring groove 222a limits the operating element 70 from being disengaged, and the first end 442 of the closure 44 stably abuts against the sealing sheet 76, so that the output gas output from the axial hole 46 of the closure 44 can enter the gas transmission passage 72 of the operating element 70 and be transmitted to the gas pipe 200.

When the user does not use the gas, the user can rotate the operation member 70 reversely to rotate the closure 44 to the first position P1, so that the closure 44 can block the gas, and the operation member 70 can be removed from the gas outlet port 182 of the valve body 12, so as to freely move the pressure regulator 1 and the portable gas tank 100.

As described above, when the regulator 10 of the present invention is connected to the portable gas canister 100, the pressure of the gas output from the portable gas canister 100 can be reduced and regulated, and the gas output at a stable predetermined pressure can be output. The switch assembly 42 in the regulator 10 can control the on/off of the output gas for the user to use. It should be noted that the operation control member 70 is used to control the rotation of the closure 44 and the output gas can be transmitted to the gas pipe 200 through the gas transmission channel 72 inside the operation control member 70, which also facilitates the taking of the output gas. Since the shutter 44 is located inside the valve body 12, the output gas will not leak from the outlet port 182 due to the shutter 44 being touched by mistake. The lid 62 and the container 60 can protect the pressurizer 10 and the portable gas canister 100 from being collided.

In one embodiment, the top cover 62 and the container 60 are not required to be provided, and the pressure stabilizer 10 can be directly connected to the portable gas canister 100.

In an embodiment, the gas pipe 200 may also be fixedly connected to the outlet port 182 of the outlet portion 18, and a control member (e.g., a knob) is disposed on the extension section 54 of the shutter 44, so that the shutter 44 can be driven to rotate between the first position P1 and the second position P2 by the connected control member.

The above description is only a preferred embodiment of the invention, and all equivalent variations to those described and claimed in the present application are intended to be included within the scope of the present invention.

Description of the reference numerals

[ invention ]

1: voltage stabilizer

10: voltage stabilizer

12: valve body

14: gas inlet part

142: gas inlet interface

144: air inlet channel

16: decompression chamber

16a: first air chamber

16b: second air chamber

162: valve port

18: air outlet part

18a: open end

182: air outlet interface

182a: gap

20: containing hole

22: first hole section

222: connecting channel

222a: positioning ring groove

222b: cell wall

24: second hole section

242: side port

26: third bore section

262: shoulder part

28: spacing groove

282: the first blocking part

284: second stop part

30: back cover

32: pressure regulating assembly

34: diaphragm

36: spring

38: moving part

40: shield member

402: shielding part

42: switch assembly

44: closure

442: first end

442a: cutting groove

444: second end

46: shaft hole

462: open side

464: closed side

48: vent hole

50: drive section

52: conical section

54: extension section

56: elastic piece

562: baffle plate

564: spring

58: stop lever

60: container with a lid

602: upper opening

604: convex part

62: upper cover

622: clamping groove

64: cover body

642: first opening

644: second opening

65: pressure gauge

66: bottom plate

68: hanging piece

70: control part

702: connecting terminal

72: air delivery passage

722: inlet

74: positioning pin

742: outer end of

744: inner end of

76: sealing sheet

762: through-hole

100: portable gas tank

100a: air outlet

200: gas pipe

P1: first position

P2: second position

Claims (14)

1. A pressure stabilizer for connecting to an outlet of a portable gas canister, said pressure stabilizer comprising:

the pressure stabilizer comprises a valve body, a pressure adjusting assembly and a switch assembly; wherein the content of the first and second substances,

the valve body is provided with an air inlet part, a decompression chamber and an air outlet part, wherein the air inlet part is provided with an air inlet connector which is connected with an air outlet of the portable gas tank; the decompression chamber is communicated with the air inlet part; the air outlet part is communicated with the decompression chamber and is provided with an air outlet interface;

the pressure adjusting assembly is arranged in the decompression chamber and adjusts the gas pressure output by the portable gas tank to form output gas with a preset pressure;

the switch assembly is arranged on the air outlet part and is positioned between the decompression chamber and the air outlet interface, and the switch assembly can be controlled to block or open the output gas.

2. The pressure stabilizer according to claim 1, comprising a container and a top cover, wherein said container is adapted to receive said portable gas canister, said container having an upper opening; the upper cover is detachably combined with the container and closes the upper opening; the upper cover is provided with an accommodating space and a first opening, and the first opening is communicated with the accommodating space; the pressure stabilizer is arranged in the accommodating space of the upper cover, and the air outlet interface corresponds to the first opening.

3. The apparatus for stabilizing pressure according to claim 2, wherein a hanger is provided and is connected to the upper cover.

4. The pressure stabilizing device according to claim 2, wherein the air inlet portion has an air inlet passage extending in an axial direction, and one end of the air inlet passage communicates with the air inlet port; the pressure gauge is combined with the gas inlet part of the valve body and is communicated with the other end of the gas inlet channel; the upper cover is provided with a second opening communicated with the containing space, and the pressure gauge is positioned in the second opening.

5. The pressure stabilizer according to claim 1, wherein the air outlet has a chamber, and a side port is formed on a wall surface of the chamber to communicate with the decompression chamber; the switch assembly comprises a shutter, the shutter is positioned in the accommodating chamber and provided with an axial hole and a vent hole positioned on the radial direction, and the axial hole is communicated with the vent hole and the air outlet interface; the shutter can rotate along the axial direction of the shutter between a first position and a second position, wherein the peripheral surface of the shutter closes the side port in the first position, and the vent hole is communicated with the side port in the second position; the gas pipeline comprises an operating control part and a gas pipeline, wherein the operating control part is provided with a connecting end, a gas pipeline is arranged in the operating control part, one end of the gas pipeline forms an inlet at the connecting end, and the other end of the gas pipeline is communicated with a gas pipe; the control element is detachably connected to the air outlet interface through the connecting end, the connecting end is connected with the obturator, and the air conveying channel is communicated with the shaft hole; the operation control piece drives the shutter to rotate between the first position and the second position.

6. The pressure stabilizer according to claim 5, wherein the connecting end of the operation member is provided with at least one positioning pin; the air outlet port of the valve body is provided with a connecting channel, the inner wall of the connecting channel is provided with a positioning ring groove, one end part of the air outlet port is provided with at least one notch, and the at least one notch is communicated with the positioning ring groove; the at least one dowel pin enters the dowel groove through the at least one notch.

7. The pressure stabilizing device according to claim 6 wherein the shutter has a first end and a second end opposite to each other in the axial direction thereof, the shaft hole has an open side and a closed side, the open side being formed at the first end, the closed side being located between the first end and the second end; the first end has at least one slot and the retainer ring groove is positioned around a radial periphery of the at least one slot; when the shutter is located at the first position, the at least one positioning pin can enter the at least one cutting groove through the at least one notch and can drive the shutter to rotate along the axial direction to the second position.

8. The pressure stabilizer according to claim 7, wherein the at least one positioning pin is disposed in a radial direction of the connection end, and the at least one positioning pin has an outer end protruding from a radial periphery of the connection end and an inner end protruding into the gas transmission duct; when the connecting end is connected with the closer, the first end of the closer is positioned in the gas transmission channel, the inner end of the at least one positioning pin extends into the at least one cutting groove, and the outer end of the at least one positioning pin extends into the positioning ring groove.

9. The pressure stabilizer according to claim 8, wherein a sealing piece is arranged in the air transmission channel, the sealing piece is provided with a through hole communicated with the air transmission channel, when the connecting end is connected with the closing piece, the first end of the closing piece is abutted against the sealing piece, and the open side of the shaft hole is communicated with the through hole.

10. The pressure stabilizer according to claim 7, wherein when said at least one positioning pin rotates said closure along the axial direction thereof to said second position, the groove wall of said positioning ring groove restrains said at least one positioning pin in said positioning ring groove.

11. The pressure stabilizing apparatus of claim 6 wherein the vent portion has a receiving bore having a first bore section, a second bore section, and a third bore section, the first bore section having the connecting channel; the second hole section is located between the first hole section and the third hole section, the hole wall of the second hole section is conical and forms the accommodating chamber, and the hole diameter of the second hole section is gradually reduced from the first hole section to the third hole section; the junction of the third hole section and the second hole section is provided with a shoulder part; the closure comprises a conical section and an extension section, the peripheral surface of the conical section is matched with the hole wall of the second hole section, and the vent hole is positioned on the conical section; the extension section is connected to the conical section and is positioned on a third hole section of the accommodating hole; the switch component comprises an elastic piece, one end of the elastic piece is abutted against the shoulder, and the other end of the elastic piece provides force in a direction departing from the shoulder to the extension section, so that the outer peripheral surface of the conical section is abutted against the hole wall of the second hole section.

12. The voltage stabilizer according to claim 11, wherein the switch assembly comprises a stopper, the stopper is disposed on the extension of the shutter, and the other end of the elastic member abuts against the stopper.

13. The device according to claim 12, wherein the elastic member comprises two blocking pieces and a spring, the two blocking pieces are sleeved on the extension section, one of the blocking pieces abuts against the shoulder, and the other blocking piece abuts against the blocking piece; the spring is sleeved on the extension section and is positioned between the two blocking pieces.

14. The pressure stabilizer according to claim 12, wherein the air outlet portion of the valve body has a limiting groove, the limiting groove communicates with the third hole section of the accommodating hole, the limiting groove has a first stopping portion and a second stopping portion, and the stopping member extends into the limiting groove; when the shutter rotates to the first position, the blocking part is abutted to the first blocking part; when the shutter rotates to the second position, the blocking part is abutted to the second blocking part.

Images