A stainless steel bellows assembly

Abstract

The invention discloses a stainless steel bellows assembly, which relates to the technical field of stainless steel bellows, and comprises a stainless steel bellows, and a water inlet connector and a water outlet connector connected to both ends of the stainless steel bellows, wherein a water inlet component is arranged in the water inlet connector, a water outlet component is arranged in the water outlet connector, a conduction pipe is connected between the water inlet component and the water outlet component, and the conduction pipe is arranged in the stainless steel bellows. When the water outlet connector is in an open state, high-pressure water entering the water inlet component opens the water outlet component through the conduction pipe, and water passes through the water inlet component and the water outlet component, and the sealing effect of the water inlet connector and the water outlet connector and the stainless steel bellows can be respectively enhanced to prevent the hidden danger of water leakage.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel bellows, and in particular to a stainless steel bellows assembly. Background Art

[0002] The stainless steel bellows assembly refers to a complete component composed of a stainless steel bellows and its related components, so as to realize specific functions in specific application scenarios. Generally speaking, the stainless steel bellows assembly consists of three major parts: stainless steel bellows, seals and joints. The stainless steel bellows is the core component, and its appearance presents a regular corrugated shape. The corrugation is composed of convex parts (called crests) and concave parts (called troughs) arranged alternately. It has many characteristics, such as flexibility, corrosion resistance, high pressure resistance, etc. The seal plays a role in sealing and preventing water leakage, and the joint plays a role in connection, etc. It is widely used in the connection of water supply and drainage.

[0003] Stainless steel bellows are usually used in high-pressure environments. Long-term high-pressure environments will cause ruptures and leaks at the joints and connections between the joints and the stainless steel bellows. When traditional stainless steel bellows are replaced and installed, the joints are often fixed by welding, or fixed by nuts after being struck with a wave beater. This results in a complicated process and many auxiliary tools when replacing and installing the stainless steel bellows. In addition, when the end of the stainless steel bellows is not struck flat by a wave beater, water leakage often occurs due to poor sealing when used under high pressure.

[0004] To this end, the present invention improves the problem that stainless steel bellows are difficult to replace and install, and that the connection between the joint and the stainless steel bellows is prone to leakage when high-pressure water is used, and provides a stainless steel bellows assembly to avoid the risk of leakage in the stainless steel bellows. Summary of the invention

[0005] The purpose of the present invention is to provide a stainless steel bellows assembly to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stainless steel bellows assembly, comprising a stainless steel bellows, and a water inlet connector and a water outlet connector connected to both ends of the stainless steel bellows, wherein a water inlet component is arranged in the water inlet connector, a water outlet component is arranged in the water outlet connector, a conduction pipe is connected between the water inlet component and the water outlet component, and the conduction pipe is arranged in the stainless steel bellows. When the water outlet connector is in an open state, high-pressure water entering the water inlet component opens the water outlet component through the conduction pipe. When water passes through the water inlet component and the water outlet component, the sealing of the stainless steel bellows in the water inlet connector and the water outlet connector can be enhanced.

[0007] As a further solution of the present invention, the water inlet assembly includes a first plug, one end of the first plug facing the stainless steel bellows is connected to a first piston, and the first piston is sealingly and slidably connected in the first air cylinder.

[0008] As a further solution of the present invention, the water outlet assembly includes a second plug, the second plug has an end facing the outside of the stainless steel bellows connected to a second piston, and the second piston is sealingly and slidably connected in the second air cylinder.

[0009] As a further solution of the present invention, a first limiting ring body is arranged in the water inlet connector, and a plurality of first fixing members for fixing one end of the stainless steel bellows close to the water inlet connector are arranged in the first limiting ring body, and the first fixing member includes a first wave crest and a second wave crest which are adapted to the wave trough of the stainless steel bellows.

[0010] As a further solution of the present invention, a second limiting ring body is arranged in the water outlet connection head, and a plurality of second fixing members for fixing one end of the stainless steel bellows close to the water outlet connection head are arranged in the second limiting ring body, and the second fixing member includes a third wave peak and a fourth wave peak adapted to the wave trough of the stainless steel bellows.

[0011] As a further solution of the present invention, an air storage portion is provided between the stainless steel bellows and the conducting tube.

[0012] As a further solution of the present invention, a first elastic member is arranged in the first air cylinder. When the first elastic member is in a relaxed state, the water inlet assembly can seal the conductive pipe at the water inlet end through the first plug. When the first elastic member is compressed to a set position, the water inlet assembly can be connected to the conductive pipe.

[0013] As a further solution of the present invention, a second elastic member is provided in the second air cylinder. When the second elastic member is in a relaxed state, the water outlet assembly can seal the conductive pipe at the water outlet end through the second plug. When the second elastic member is compressed to a set position, the water outlet assembly can be connected to the conductive pipe.

[0014] As a further solution of the present invention, the water inlet assembly includes a first inflation ring, the first inflation ring is provided with an air vent, and the first air cylinder is provided with an air outlet. When the first elastic member in the first air cylinder is in a compressed state, the compressed gas in the first air cylinder enters into the first inflation ring through the air outlet and the pipeline and inflates the air storage part near one end of the water inlet connector.

[0015] As a further solution of the present invention, the water outlet assembly includes a second inflatable ring, the second inflatable ring is provided with an air vent, and the second air cylinder is provided with an air outlet. When the second elastic member in the second air cylinder is in a compressed state, the compressed gas in the second air cylinder enters the second inflatable ring through the air outlet and the pipeline and inflates the air storage part near one end of the water outlet connector.

[0016] The beneficial effects of the present invention are:

[0017] 1. When the stainless steel bellows and the water inlet connector are connected, the first limiting ring body is used to simultaneously limit the plurality of first fixing members clamped on the outer wall and end face of the stainless steel bellows, thereby realizing a quick connection between the stainless steel bellows and the water inlet connector. The plurality of first fixing members are continuously squeezed by the gasket at the connecting end of the angle valve or the valve, so that the plurality of first fixing members limit the end face of the stainless steel bellows as the water inlet connector further rotates, thereby further preventing the stainless steel bellows from being separated from the water inlet connector and leaking under water pressure.

[0018] 2. When water is passed through the present invention, high-pressure water causes the first plug to slide in the water inlet assembly. The movement of the first plug drives the first piston to move in the first air cylinder. The first piston squeezes the first elastic member and the gas in the first air cylinder, so that the air storage part located at the second wave peak expands against the inner wall of the stainless steel bellows, the conductive pipe and the water inlet assembly, so that the connection between the water inlet connector and the end of the stainless steel bellows is more tightly fitted, thereby improving the sealing performance.

[0019] 3. When the water pressure further increases, the compressed gas in the first gas cylinder can be further compressed, and the further compressed gas enters the gas storage part between the first wave peak and the second wave peak through the second wave peak, which can further squeeze the conductive pipe, the water inlet assembly and the stainless steel bellows, thereby enhancing the sealing effect of the connection between the water inlet and outlet connectors and the stainless steel bellows under high water pressure environment, and preventing the connection from loosening, falling off or cracking and leaking, thereby affecting normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a full cross-sectional view of the overall structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the water inlet connector of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the water inlet assembly of the present invention.

[0024] Figure 5 It is a schematic cross-sectional view of the first gas cylinder of the present invention.

[0025] Figure 6 It is a schematic cross-sectional view of the water inlet connector of the present invention.

[0026] Figure 7 For the present invention Figure 6 A partial enlarged view of point A in the middle.

[0027] Figure 8 This is an exploded view of the first fixing member of the present invention.

[0028] Fig. 9 It is a schematic diagram of the water outlet connector of the present invention.

[0029] Fig.10 It is a schematic cross-sectional view of the second inflatable ring of the present invention.

[0030] Fig.11 It is a schematic cross-sectional view of the second gas cylinder of the present invention.

[0031] Fig.12 It is a schematic cross-sectional view of the water outlet connector of the present invention.

[0032] Fig.13 For the present invention Fig.12 A partial enlarged view of point B in the middle.

[0033] Fig.14 This is an exploded view of the second fixing member of the present invention.

[0034] Fig.15 This is a diagram of the water flow state of the water outlet connector of the present invention.

[0035] Fig.16 This is a diagram showing the water flow state of the water inlet connector of the present invention.

[0036] The accompanying drawings are marked as follows:

[0037] 100. Stainless steel bellows;

[0038] 200, water inlet connector;

[0039] 210, water inlet assembly; 211, first plug; 212, first piston; 213, first air cylinder; 214, first elastic member; 215, first inflation ring;

[0040] 220, first limiting ring; 221, first fixing member; 2210, first wave crest; 2211, second wave crest;

[0041] 300, water outlet connector;

[0042] 310, water outlet assembly; 311, second plug; 312, second piston; 313, second air cylinder; 314, second elastic member; 315, second inflation ring;

[0043] 320, second limiting ring; 321, second fixing member; 3210, third wave crest; 3211, fourth wave crest;

[0044] 400, conduction tube;

[0045] 500. Gas storage unit. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1 In the first embodiment of the present invention, a stainless steel bellows assembly is provided, including a stainless steel bellows 100, and a water inlet connector 200 and a water outlet connector 300 connected to both ends of the stainless steel bellows 100, wherein the water inlet connector 200 is connected to a water inlet pipeline, and the water outlet connector 300 is connected to a faucet or a valve. The stainless steel bellows 100, the water inlet connector 200, and the water outlet connector 300 are all made of stainless steel to replace the traditional brass material, which is more resistant to acid and alkali, and is not easy to corrode and scale.

[0048] See also Figure 2 and Figure 3 , wherein the water inlet connector 200 is provided with a water inlet assembly 210, combined with Fig. 9 A water outlet assembly 310 is disposed in the water outlet connector 300 , a conduction pipe 400 is connected between the water inlet assembly 210 and the water outlet assembly 310 , and the conduction pipe 400 is disposed in the stainless steel bellows 100 .

[0049] Since the water outlet connector 300 is connected to a faucet or a valve, when the faucet or the valve is turned on, the water outlet connector 300 is in an open state, and the high-pressure water entering the water inlet assembly 210 opens the water outlet assembly 310 through the transmission pipe 400, and the water source can enter the faucet or the valve through the water outlet connector 300 and flow out through the faucet or the valve. When the water inlet assembly 210 and the water outlet assembly 310 pass water, the stainless steel bellows 100 in the water inlet connector 200 and the water outlet connector 300 are further sealed.

[0050] For more specific implementation of the above solution, please refer to Figure 3 , Figure 4 and Figure 5The water inlet assembly 210 includes a first plug 211 , and one end of the first plug 211 facing the stainless steel bellows 100 is connected to a first piston 212 , and the first piston 212 is sealingly and slidably connected to the first air cylinder 213 .

[0051] See also Fig.10 and Fig.11 The water outlet assembly 310 includes a second plug 311 , and one end of the second plug 311 facing outside the stainless steel bellows 100 is connected to a second piston 312 , and the second piston 312 is sealingly and slidably connected in the second air cylinder 313 .

[0052] See also Figure 6 , Figure 8 and Fig.16 A first limiting ring body 220 is arranged in the water inlet connector 200, and a plurality of first fixing members 221 for fixing the end of the stainless steel bellows 100 close to the water inlet connector 200 are arranged in the first limiting ring body 220. There are a plurality of fixing members 221, wherein the first fixing member 221 is made of a material having an elastic sealing function, and the first fixing member 221 includes a first wave crest 2210 and a second wave crest 2211 adapted to the wave trough of the stainless steel bellows 100; it should be noted that the height of the first wave crest 2210 is greater than the height of the second wave crest 2211. The purpose of such a setting is that when the plurality of first fixing members 221 are limited by the first limiting ring body 220, the stainless steel bellows 100 is firstly pressed and limited by the first wave crest 2210.

[0053] See also Fig. 9 , Fig.12 , Fig.14 The water outlet connector 300 is provided with a second limiting ring 320, and the second limiting ring 320 is provided with a plurality of second fixing members 321 for fixing the end of the stainless steel bellows 100 close to the water outlet connector 300. The second fixing members 321 are multiple, wherein the second fixing members 321 have the same characteristics as the first fixing members 221. Fig.15 The second fixing member 321 includes a third wave peak 3210 and a fourth wave peak 3211 which are adapted to the wave valley of the stainless steel bellows 100; it should be noted that the height of the third wave peak 3210 is greater than the height of the fourth wave peak 3211. The purpose of such a setting is that when the multiple second fixing members 321 are limited by the second limiting ring body 320, the stainless steel bellows 100 is first preliminarily compressed and limited by the third wave peak 3210.

[0054] In the setting of this embodiment, the traditional stainless steel bellows 100 is integrated with the first fixing piece 221 and cannot be replaced by the first fixing piece 221 alone. When replacing, it is necessary to replace the entirety of the stainless steel bellows 100. By setting a plurality of first fixing pieces 221, the stainless steel bellows 100 itself can be replaced alone while achieving strong sealing and connection reliability. When replacing, the water inlet connector 200 is first sleeved on the stainless steel bellows 100, and the first limiting ring body 220 is sleeved on the stainless steel bellows 100 in turn. By evenly clamping the four first fixing pieces 221 on the outer surface and end face of the stainless steel bellows 100, the first limiting ring body 220 is The positioning ring body 220 simultaneously limits the multiple first fixing members 221 that are clamped on the outer wall and end face of the stainless steel bellows, thereby realizing the quick connection between the stainless steel bellows 100 and the water inlet connector 200. At the same time, the multiple first fixing members 221 are squeezed and limited by the first limiting ring body 220, so that the multiple first fixing members 221 are squeezed and interacted with each other in the first limiting ring body 220, and form a whole to limit and seal the stainless steel bellows 100. At the same time, when the bellows 100 needs to be replaced, the multiple first fixing members are released from the limit by the first limiting ring body 220, so that the multiple first fixing members 221 become independent and universal individuals.

[0055] When the water inlet connector 200 is connected to the angle valve or the valve, as the water inlet connector 200 rotates, the water inlet connector 200 engages with the external thread of the angle valve or the valve through the internal thread, and the first limiting ring body 220 follows the water inlet connector 200 and continuously approaches the angle valve or the valve. While the first limiting ring body 220 moves, it continuously squeezes the multiple first fixing members 221, so that the first wave crest 2210 of the first fixing member 221 first fits with the corresponding wave trough of the stainless steel bellows 100, and under the action of friction, the first wave crest 2210 of the first fixing member 221 squeezes and limits the wave trough of the stainless steel bellows 100; similarly, as the water inlet connector 200 rotates further, the water inlet connector 20 0 rotates, and at the same time, the first limiting ring body 220 is driven to continue to squeeze the first fixing piece 221, so that the first wave crest 2210 further squeezes the corresponding wave trough of the stainless steel bellows 100, and at the same time, the second wave crest 2211 continues to squeeze the corresponding wave trough of the stainless steel bellows 100, thereby ensuring the firmness and sealing of the connection between the stainless steel bellows 100 and the water inlet connector 200; at the same time, the connection end of the angle valve or the valve continuously squeezes the plurality of first fixing pieces 221 through the gasket, so that the plurality of first fixing pieces 221 limit the end face of the stainless steel bellows 100 as the water inlet connector 200 further rotates, further preventing the stainless steel bellows 100 from being separated from the water inlet connector 200 and leaking under water pressure.

[0056] See also Figure 2A gas storage unit 500 is provided between the stainless steel bellows 100 and the conductive tube 400. Figure 5 , Figure 6 and Figure 7 The first air cylinder 213 is provided with a first elastic member 214, wherein the first elastic member 214 is a spring. When the first elastic member 214 is in a relaxed state, the water inlet assembly 210 can block the conductive pipe 400 at the water inlet end through the first plug 211. When the first elastic member 214 is compressed to a set position, the water inlet assembly 210 can be connected to the conductive pipe 400; Figure 4 and Figure 5 The water inlet assembly 210 includes a first inflatable ring 215, the first inflatable ring 215 is provided with an air vent, and the first air cylinder 213 is provided with an air outlet. When the first elastic member 214 in the first air cylinder 213 is in a compressed state, the compressed gas in the first air cylinder 213 enters the first inflatable ring 215 through the air outlet and the pipeline and inflates the air storage part 500 near one end of the water inlet connector 200.

[0057] See also Fig.11 , Fig.12 and Fig.13 A second elastic member 314 is provided in the second air cylinder 313, wherein the second elastic member 314 is a spring. When the second elastic member 314 is in a relaxed state, the water outlet assembly 310 can block the conductive pipe 400 at the water outlet end through the second plug 311. When the second elastic member 314 is compressed to a set position, the water outlet assembly 310 can be connected to the conductive pipe 400.

[0058] See also Fig.10 , Fig.12 and Fig.13 The water outlet component 310 includes a second air-filling ring 315, the second air-filling ring 315 is provided with an air vent, and the second air cylinder 313 is provided with an air outlet. When the second elastic member 314 in the second air cylinder 313 is in a compressed state, the compressed gas in the second air cylinder 313 enters the second air-filling ring 315 through the air outlet and the pipeline and inflates the air storage part 500 near one end of the water outlet connector 300.

[0059] On the basis of the above-mentioned embodiment, when the faucet or valve is turned on, the high-pressure water in the angle valve or valve squeezes the first plug 211, so that the first plug 211 slides in the water inlet assembly 210. The first plug 211 moves while driving the first piston 212 to move in the first air cylinder 213. The first piston 212 continuously squeezes the first elastic member 214 while moving in the first air cylinder 213. The first piston 212 squeezes the first elastic member 214 while squeezing the gas in the first air cylinder 213. The compressed gas in the first air cylinder 213 enters the first inflation ring 215 through the air outlet and the pipeline. The compressed gas in the first inflation ring 215 inflates the air storage part 500 at the second wave peak 2211. , while the air storage part 500 at the second wave crest 2211 is inflated, the air storage part 500 expands and squeezes the inner wall of the stainless steel bellows 100, so that the outer wall of the stainless steel bellows 100 is more closely fitted to the first fixing member 221, and the first piston 212 squeezes the first elastic member 214 and the gas in the first air cylinder 213, so that the air storage part 500 at the second wave crest 2211 expands and squeezes the inner wall of the stainless steel bellows 100, the conductive pipe 400 and the water inlet assembly 210, so that the connection between the water inlet connector 200 and the end of the stainless steel bellows 100 is more closely fitted to prevent loosening; at the same time, as the water pressure continues to increase, the first plug 211 moves further toward the first air cylinder 213 in the water inlet assembly 210, and as The movement of the first plug 211 causes the first piston 212 to continuously squeeze the first elastic member 214 in the first gas cylinder 213, and the gas in the first gas cylinder 213 is further compressed by the first piston 212, and the pressure of the compressed gas in the gas storage section 500 at the second wave peak 2211 is further increased. As the pressure continues to increase, the compressed gas passes through the second wave peak 2211 and enters the gas storage section 500 between the first wave peak 2210 and the second wave peak 2211. The gas storage section 500 between the first wave peak 2210 and the second wave peak 2211 is moved as the first plug 211 is pressed, so that the pressurized gas enters the compressed gas in the gas storage section 500 between the first wave peak 2210 and the second wave peak 2211, and the pressure gradually increases. The pressurized gas in the air storage section 500 located between the first wave peak 2210 and the second wave peak 2211 allows pressurized gas to be again filled into the air storage section 500 in the area between the first wave peak 2210 and the second wave peak 2211 while high-pressure water is used, so that the air storage section 500 in the area between the first wave peak 2210 and the second wave peak 2211 further expands, thereby further squeezing the inner wall of the stainless steel bellows 100, so that the air storage section 500 at the first fixing part 221 is expanded and squeezes the conductive pipe 400, the water inlet assembly 210 and the stainless steel bellows 100 by further filling the air with pressurized gas through the air storage section 500 at the first wave peak 2210 and the second wave peak 2211 while high-pressure water is used.

[0060] As the pressure of water impacting the first plug 211 gradually increases, the first plug 211 moves further toward the first air cylinder 213 in the water inlet assembly 210. The first plug 211 moves while driving the first piston 212 to move synchronously in the first air cylinder 213. The first piston 212 moves synchronously with the first plug 211 under pressure, so that the compressed gas in the first air cylinder 213 is further compressed. As the water pressure increases, the compressed gas passes through the second wave crest 2211 and enters the air storage portion 500 between the first wave crest 2210 and the second wave crest 2211, thereby making the water pressure The larger the pressure, the greater the gas pressure in the air storage section 500 between the first wave peak 2210 and the second wave peak 2211. As a result, the air storage section 500 at the first wave peak 2210 and the second wave peak 2211 is further filled with pressurized gas while using high-pressure water, so that the air storage section 500 at the first fixing part 221 expands and squeezes the conductive pipe 400, the water inlet assembly 210 and the stainless steel bellows 100, thereby preventing the water inlet connector 200 and the stainless steel bellows 100 from loosening, falling off, or breaking and leaking when used in a long-term high-pressure environment, causing serious water damage and safety hazards.

[0061] According to the above embodiments, the effect of one end of the water outlet connector 300 of the stainless steel bellows 100 can be obtained by analogy. The above description is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, shall be covered within the protection scope of the present invention.

Claims

1. A stainless steel bellows assembly, comprising a stainless steel bellows (100), and a water inlet connector (200) and a water outlet connector (300) connected to both ends of the stainless steel bellows (100), characterized in that: The water inlet connector (200) is provided with a water inlet assembly (210), the water outlet connector (300) is provided with a water outlet assembly (310), a conduction pipe (400) is connected between the water inlet assembly (210) and the water outlet assembly (310), the conduction pipe (400) is provided in a stainless steel bellows (100), and when the water outlet connector (300) is in an open state, high-pressure water entering the water inlet assembly (210) opens the water outlet assembly (310) through the conduction pipe (400), and while water flows through the water inlet assembly (210) and the water outlet assembly (310), the sealing of the stainless steel bellows (100) in the water inlet connector (200) and the water outlet connector (300) can be enhanced; The water inlet assembly (210) comprises a first plug (211), one end of the first plug (211) facing the inside of the stainless steel bellows (100) is connected to a first piston (212), and the first piston (212) is sealingly and slidably connected in a first air cylinder (213); the water outlet assembly (310) comprises a second plug (311); A first limiting ring body (220) is arranged in the water inlet connector (200), and a plurality of first fixing members (221) are arranged in the first limiting ring body (220) for fixing one end of the stainless steel bellows (100) close to the water inlet connector (200), wherein the first fixing member (221) comprises a first wave crest (2210) and a second wave crest (2211) adapted to the wave trough of the stainless steel bellows (100), wherein the height of the first wave crest (2210) is greater than the height of the second wave crest (2211); An air storage portion (500) is provided between the stainless steel bellows (100) and the conducting tube (400); a first elastic member (214) is provided in the first air cylinder (213); when the first elastic member (214) is in a relaxed state, the water inlet assembly (210) can seal the conducting tube (400) at the water inlet end through the first plug (211); when the first elastic member (214) is compressed to a set position, the water inlet assembly (210) can be connected to the conducting tube (400). The water inlet assembly (210) comprises a first inflatable ring (215), the first inflatable ring (215) is provided with an air vent, and the first air cylinder (213) is provided with an air outlet. When the first elastic member (214) in the first air cylinder (213) is in a compressed state, the compressed gas in the first air cylinder (213) enters the first inflatable ring (215) through the air outlet and the pipeline and inflates the air storage portion (500) near one end of the water inlet connector (200); By providing a plurality of first fixing members (221), the stainless steel bellows (100) itself can be replaced individually; when the faucet or valve is turned on, the gas storage portion (500) located at the second wave crest (2211) expands to squeeze the inner wall of the stainless steel bellows (100) and the water inlet assembly (210) of the conducting pipe (400), so that the connection between the water inlet connector (200) and the end of the stainless steel bellows (100) is more tightly fitted to prevent loosening.

2. A stainless steel bellows assembly according to claim 1, characterized in that: One end of the second plug (311) facing the outside of the stainless steel bellows (100) is connected to a second piston (312), and the second piston (312) is sealingly and slidably connected in the second gas cylinder (313).

3. A stainless steel bellows assembly according to claim 2, characterized in that: A second limiting ring body (320) is arranged inside the water outlet connector (300), and a plurality of second fixing members (321) for fixing an end of the stainless steel bellows (100) close to the water outlet connector (300) are arranged inside the second limiting ring body (320), and the second fixing members (321) include a third wave crest (3210) and a fourth wave crest (3211) adapted to the wave trough of the stainless steel bellows (100).

4. A stainless steel bellows assembly according to claim 3, characterized in that: A second elastic member (314) is disposed in the second air cylinder (313); when the second elastic member (314) is in a relaxed state, the water outlet assembly (310) can block the conduction pipe (400) at the water outlet end through the second plug (311); and when the second elastic member (314) is compressed to a set position, the water outlet assembly (310) can be connected to the conduction pipe (400).

5. A stainless steel bellows assembly according to claim 4, characterized in that: The water outlet assembly (310) comprises a second inflatable ring (315), the second inflatable ring (315) is provided with an air vent, and the second air cylinder (313) is provided with an air outlet. When the second elastic member (314) in the second air cylinder (313) is in a compressed state, the compressed gas in the second air cylinder (313) enters the second inflatable ring (315) through the air outlet and the pipeline, and inflates the air storage portion (500) near one end of the water outlet connector (300).

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