A stainless steel metal hose

Abstract

The present invention relates to the technical field of metal hoses, and specifically to a stainless steel metal hose, comprising a metal hose, wherein an installation connection sleeve is fixedly provided at one end of the metal hose, a limiting assembly is provided on the installation connection sleeve, an installation groove is provided on the metal hose, a limiting ring is fixedly provided in the installation groove, a sealing assembly is provided on the limiting ring, and through the cooperation of the limiting assembly and the positioning assembly, when installing, the first pushing ring is pushed so that the pushing block squeezes the clamping plate, and the first pushing ring is used to limit the extended long plate, so that the installation can be completed quickly, and when disassembly is required, the first pushing ring is pushed so that the clamping plate is moved out of the limiting clamping slot, and the restriction of the clamping plate on the extended long plate is released, and under the elastic action of the second spring, the installation connection sleeve and the installation connection ring are separated, so that the metal hose and the compensator can be quickly installed and disassembled, and the operation is simple and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of metal hoses, in particular to a stainless steel metal hose. Background Art

[0002] Stainless steel hose, made of 304 stainless steel or 301 stainless steel, is used as a protective tube for wires, cables, and automation instrument signals. Stainless steel hose has good softness, corrosion resistance, high temperature resistance, wear resistance, tensile resistance, waterproofness, and provides excellent electromagnetic shielding performance. Stainless steel hose can be freely bent into various angles and curvature radii, and has the same softness and durability in all directions; the pitch of stainless steel hose is flexible, has good elasticity, and is free of blockage and stiffness; the edge buckles of each section of stainless steel threading hose have a certain tensile strength to prevent the damage of the hose from causing the lines laid inside the hose to be exposed. The pipeline compensator is a compensation device in the pipeline system for, for example, the physical deformation of the thermal pipeline due to the change in the temperature of the conveying medium or the vibration deformation of the connection section with the drive system, to avoid pipeline damage caused by untimely compensation of the pipeline system.

[0003] When installing existing hoses and compensators, flanges are usually used for connection. Installation and removal are time-consuming and inefficient. At the same time, the sealing gasket is prone to damage and chipping after long-term use, which will reduce the sealing of the connection. The remaining residue is easy to stick to the installation groove, which is not easy to clean. Summary of the invention

[0004] The object of the present invention is to provide a stainless steel metal hose to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stainless steel metal hose, comprising a metal hose, a mounting connecting sleeve fixedly provided on one end of the metal hose, a limiting assembly provided on the mounting connecting sleeve, a mounting groove opened on the metal hose, a limiting ring fixedly provided in the mounting groove, a sealing assembly provided on the limiting ring, the limiting assembly comprising a fixed block fixedly connected to the mounting connecting sleeve, a sliding connecting rod fixedly connected to one end of the fixed block, and the sealing assembly comprising a first magnetic ring plate, a second magnetic ring plate, a first connecting ring, a sealing ring and an annular mounting groove.

[0006] Preferably, a first push ring is slidably connected to the sliding connecting rod, a return spring is sleeved on the sliding connecting rod, one end of the return spring is fixedly connected to the first push ring, and the other end of the return spring is fixedly connected to the fixed block.

[0007] Preferably, a plurality of pushing blocks are fixedly mounted on the first pushing ring, a plurality of fixing seats are fixedly mounted on the mounting connecting sleeve, a clamping plate is slidably connected to the fixing seat, a first spring is fixedly connected to the lower end of the clamping plate, and the lower end of the first spring is fixedly connected to the inner bottom of the fixing seat.

[0008] Preferably, the annular mounting groove is opened on the limiting ring for the second magnetic ring plate to extend into, the first magnetic ring plate is fixedly mounted in the annular mounting groove, the second magnetic ring plate is fixedly mounted on an end of the first connecting ring close to the first magnetic ring plate, the sealing ring is fixedly mounted on an end of the first connecting ring away from the first magnetic ring plate, and the first magnetic ring plate and the second magnetic ring plate are arranged opposite to each other with opposite magnetic poles.

[0009] It also includes a pipeline compensator, both ends of which are fixedly provided with mounting connection rings, the mounting connection rings are provided with positioning components, the mounting connection rings are provided with an annular groove, a push cleaning component is provided in the annular groove, and the annular groove can be used for a limiting ring and a sealing ring to extend into.

[0010] Preferably, the positioning assembly includes an extending long plate, a mounting block, a sliding long rod, a second spring, a sliding block, a limiting slot and a sliding transverse slot. The extending long plate is fixedly mounted on the mounting connecting ring, and the fixing seat is provided with an extending slot for the extending long plate to be inserted into. The limiting slot is provided on the extending long plate for the connecting plate to be inserted into.

[0011] Preferably, the sliding transverse groove is opened on the extended long plate to allow the pushing block to slide, the mounting block is fixedly connected to the extended long plate, the sliding long rod is fixedly connected to one end of the mounting block, the sliding block is slidably connected to the sliding long rod, the sliding long rod is sleeved on the second spring, one end of the second spring is fixedly connected to the sliding block, the other end of the second spring is fixedly connected to the mounting block, and the sliding block abuts against the fixed stop plate.

[0012] Preferably, the push cleaning assembly includes a push ring plate, a sliding fixing rod, an air outlet pipe, a piston ring plate, a first cavity, a second cavity, a push spring, an air intake pipe and a ventilation pipe. A cavity is provided in the mounting connecting ring, and the piston ring plate is slidably connected in the cavity.

[0013] Preferably, the piston ring plate divides the cavity into a first cavity and a second cavity, the push spring is arranged in the second cavity, one end of the push spring is fixedly connected to the piston ring plate, and the other end of the push spring is fixedly connected to the inner wall of the second cavity.

[0014] Preferably, a ventilation pipe is connected to the second cavity, an air intake pipe is connected to the first cavity, a one-way air intake valve is provided on the air intake pipe, the push ring plate is slidably connected in the annular groove, the air outlet pipe passes through the push ring plate and is fixedly connected to the push ring plate, and the other end of the air outlet pipe slides into the first cavity.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Through the cooperation of the limiting component and the positioning component, when installing, the first pushing ring is pushed so that the pushing block squeezes the clamping plate, and the first pushing ring is used to limit the extension of the long plate, so the installation can be completed quickly. When disassembly is required, the first pushing ring is pushed to move the clamping plate out of the limiting slot, thereby releasing the restriction of the clamping plate on the extension of the long plate. Under the elastic action of the second spring, the installation connecting sleeve and the installation connecting ring are separated, thereby realizing the rapid installation and disassembly between the metal hose and the compensator, and the operation is simple and convenient.

[0017] During the installation process, the piston ring plate is driven by the sliding fixing rod to squeeze the push spring, and the sealing ring is squeezed and deformed to achieve a sealing effect. The first magnetic ring plate and the second magnetic ring plate are arranged with opposite magnetic poles, which is convenient for installation and disassembly, and it is convenient to remove the first connecting ring from the annular mounting groove, thereby facilitating the replacement of the sealing ring, and the sealing performance is guaranteed.

[0018] When the cam is in the air, it releases the gas from the first cavity and the gas in the second cavity is ejected from the air outlet pipe. The gas in the second cavity is ejected from the air outlet pipe, and the gas in the second cavity is ejected from the air outlet pipe. This prevents the gas in the second cavity from sticking to the inner wall of the annular groove. The gas in the second cavity is ejected from the air outlet pipe, and the gas in the second cavity is ejected from the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the local structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the limiting component of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the extended long plate of the present invention.

[0023] Figure 5 It is a schematic diagram of the sealing component structure of the present invention.

[0024] Figure 6 It is a schematic diagram of the local structure of the limiting component of the present invention.

[0025] Figure 7 It is a schematic diagram of the structure of the push cleaning component of the present invention.

[0026] Figure 8 It is a schematic structural diagram of the initial state of the push spring of the present invention.

[0027] Fig. 9 It is a schematic structural diagram of the push spring in the compressed state of the present invention.

[0028] Fig.10 It is a schematic diagram of the local structure of the installation connecting ring of the present invention.

[0029] Fig.11 It is a schematic diagram of the structure of the present invention in the clamping state of the extended long board.

[0030] Fig.12 It is a schematic diagram of the first spring position structure of the present invention.

[0031] Fig.13 It is a schematic diagram of the structure of the pipeline compensator of the present invention.

[0032] Fig.14 It is a schematic diagram of the structure of the metal hose of the present invention.

[0033] In the figure: 1. Metal hose; 2. Install the connecting sleeve; 3. Limiting assembly; 4. Pipe compensator; 5. Install the connecting ring; 6. Positioning assembly; 7. Sealing assembly; 8. Limiting ring; 9. Annular groove; 10. Push cleaning assembly; 31. First push ring; 32. Fixed block; 33. Sliding connecting rod; 34. Reset spring; 35. Push block; 36. Fixed seat; 37. Snap-on plate; 38. First spring; 39. Fixed abutment plate; 61. Extend into the long board; 62. Install block ; 63. Sliding long rod; 64. Second spring; 65. Sliding block; 66. Limiting slot; 67. Sliding transverse slot; 71. First magnetic ring plate; 72. Second magnetic ring plate; 73. First connecting ring; 74. Sealing ring; 75. Annular mounting groove; 101. Pushing ring plate; 102. Sliding fixing rod; 103. Air outlet pipe; 104. Piston ring plate; 105. First cavity; 106. Second cavity; 107. Pushing spring; 108. Inlet pipe; 109. Ventilation pipe. DETAILED DESCRIPTION

[0034] 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 14 The present invention provides a technical solution: a stainless steel metal hose, comprising a metal hose 1, a mounting connection sleeve 2 is fixedly provided at one end of the metal hose 1, a limiting assembly 3 is provided on the mounting connection sleeve 2, a mounting groove is provided on the metal hose 1, a limiting ring 8 is fixedly provided in the mounting groove, a sealing assembly 7 is provided on the limiting ring 8, the limiting ring 8 is extended into the annular groove 9, the sealing ring 74 is deformed by being squeezed, and a sealing effect is achieved, the limiting assembly 3 comprises a fixed block 32 fixedly connected to the mounting connection sleeve 2, one end of the fixed block 32 is fixedly connected to a sliding connecting rod 33, the sealing assembly 7 comprises a first magnetic ring plate 71, a second magnetic ring plate 72, a first connecting ring 73, a sealing ring 74 and an annular mounting groove 75, the first magnetic ring plate 71 and the second magnetic ring plate 72 are arranged with opposite magnetic poles, so that the first connecting ring 73 can be taken out of the annular mounting groove 75 conveniently, and then the sealing ring 74 can be replaced conveniently, and the sealing performance is guaranteed.

[0036] The sliding connecting rod 33 is slidably connected with a first push ring 31, and a return spring 34 is sleeved on the sliding connecting rod 33. One end of the return spring 34 is fixedly connected to the first push ring 31, and the other end of the return spring 34 is fixedly connected to the fixed block 32. A plurality of push blocks 35 are fixedly installed on the first push ring 31, and a plurality of fixed seats 36 are fixedly installed on the mounting connecting sleeve 2. A clamping plate 37 is slidably connected to the fixed seat 36. The lower end of the clamping plate 37 is fixedly connected to a first spring 38, and the lower end of the first spring 38 is fixedly connected to the inner bottom of the fixed seat 36, pushing the first push ring 31, and the first push ring 31 slides on the sliding connecting rod 33, and the return spring 34 is fixedly connected to the fixed block 32. The positioning spring 34 is squeezed, and the pushing block 35 squeezes the inclined surface on the clamping plate 37, forcing the clamping plate 37 to move downward and squeeze the first spring 38. When the limiting slot 66 moves to the position of the clamping plate 37, the sliding block 65 abuts against the fixed abutment plate 39, forcing the second spring 64 to be squeezed, loosening the first pushing ring 31. Under the elastic action of the reset spring 34, the first pushing ring 31 and the pushing block 35 are driven away from the clamping plate 37. Under the elastic action of the first spring 38, the clamping plate 37 is driven to be clamped in the limiting slot 66, and the long plate 61 is extended into and fixed on the fixing seat 36, thereby realizing the installation of the metal hose and the compensator.

[0037] An annular mounting groove 75 is provided on the limiting ring 8 for the second magnetic ring plate 72 to extend into, the first magnetic ring plate 71 is fixedly mounted in the annular mounting groove 75, the second magnetic ring plate 72 is fixedly mounted on an end of the first connecting ring 73 close to the first magnetic ring plate 71, the sealing ring 74 is fixedly mounted on an end of the first connecting ring 73 away from the first magnetic ring plate 71, and the first magnetic ring plate 71 and the second magnetic ring plate 72 are arranged with opposite poles, which makes it convenient to remove the first connecting ring 73 from the annular mounting groove 75, and further facilitates the replacement of the sealing ring 74.

[0038] It also includes a pipeline compensator 4, both ends of which are fixedly provided with installation connecting rings 5, a positioning component 6 is provided on the installation connecting ring 5, an annular groove 9 is opened on the installation connecting ring 5, a pushing and cleaning component 10 is provided in the annular groove 9, and the annular groove 9 can be used for the limiting ring 8 and the sealing ring 74 to extend into. Through the cooperation of the limiting component 3 and the positioning component 6, when installing, the first pushing ring 31 is pushed so that the pushing block 35 squeezes the clamping plate 37, and the first pushing ring 31 is used to limit the extension of the long plate 61, so that the installation can be completed quickly. When disassembly is required, the first pushing ring 31 is pushed so that the clamping plate 37 is moved out of the limiting groove 66, and the restriction of the clamping plate 37 on the extension of the long plate 61 is released. Under the elastic action of the second spring 64, the installation connecting sleeve 2 and the installation connecting ring 5 are separated, so that the metal hose and the compensator can be quickly installed and disassembled. The operation is simple and convenient. The locking cam 75 is engaged with the locking cam 76 and the locking cam 78 is engaged with the locking cam 76. The locking cam 76 is then engaged with the locking cam 76 and the locking cam 78 is engaged with the locking cam 76.

[0039] The positioning assembly 6 includes an extended long plate 61, a mounting block 62, a sliding long rod 63, a second spring 64, a sliding block 65, a limiting card slot 66 and a sliding transverse slot 67. The extended long plate 61 is fixedly mounted on the mounting connection ring 5. The fixed seat 36 is provided with an extended slot for the extended long plate 61 to be inserted into. The limiting card slot 66 is provided on the extended long plate 61 for the clamping plate 37 to be clamped in. The sliding transverse slot 67 is provided on the extended long plate 61 for the push block 35 to slide. The mounting block 62 is fixedly connected to the extended long plate 61. The sliding long rod 63 is fixedly connected to one end of the mounting block 62. The sliding block 65 slides It is movably connected to the sliding long rod 63, and the sliding long rod 63 is sleeved on the second spring 64. One end of the second spring 64 is fixedly connected to the sliding block 65, and the other end of the second spring 64 is fixedly connected to the mounting block 62. The sliding block 65 abuts against the fixed abutment plate 39. When it is necessary to disassemble the metal pipe and the compensator, the first pushing ring 31 is pushed so that the pushing block 35 squeezes the clamping plate 37, so that the clamping plate 37 is moved out of the limiting clamping groove 66, thereby releasing the restriction of the clamping plate 37 on the extension into the long plate 61. Under the elastic action of the second spring 64, the installation connection sleeve 2 and the installation connection ring 5 are separated.

[0040] The push cleaning assembly 10 includes a push ring plate 101, a sliding fixed rod 102, an air outlet pipe 103, a piston ring plate 104, a first cavity 105, a second cavity 106, a push spring 107, an air inlet pipe 108 and a ventilation pipe 109. A cavity is arranged in the mounting connection ring 5, the piston ring plate 104 is slidably connected in the cavity, the piston ring plate 104 separates the cavity into a first cavity 105 and a second cavity 106, the push spring 107 is arranged in the second cavity 106, one end of the push spring 107 is fixedly connected to the piston ring plate 104, the other end of the push spring 107 is fixedly connected to the inner wall of the second cavity 106, the second cavity 106 is connected to a ventilation pipe 109, and the first cavity 105 is connected to a An air inlet pipe 108 is provided, and a one-way air inlet valve is provided on the air inlet pipe 108. The push ring plate 101 is slidably connected in the annular groove 9. The air outlet pipe 103 penetrates the push ring plate 101 and is fixedly connected to the push ring plate 101. The other end of the air outlet pipe 103 slides into the first cavity 105. Under the elastic action of the push spring 107, the piston ring plate 104 is driven to reset. The piston ring plate 104 squeezes the gas in the first cavity 105, so that the gas in the first cavity 105 is ejected from the air outlet pipe 103. The push ring plate 101 can push the sealing ring 74 residue from the inner wall of the annular groove 9. At the same time, the gas is ejected from the air outlet of the air outlet pipe 103, so that the sealing ring 74 residue in the annular groove 9 is cleaned.

[0041] Through the cooperation of the limiting component 3 and the positioning component 6, when installing, the first pushing ring 31 is pushed so that the pushing block 35 squeezes the clamping plate 37, and the first pushing ring 31 is used to limit the extension of the long plate 61, so that the installation can be completed quickly. When disassembly is required, the first pushing ring 31 is pushed so that the clamping plate 37 is moved out of the limiting slot 66, and the restriction of the clamping plate 37 on the extension of the long plate 61 is released. Under the elastic action of the second spring 64, the installation connecting sleeve 2 and the installation connecting ring 5 are separated, so that the metal hose and the compensator can be quickly installed and disassembled, and the operation is simple and convenient.

[0042] In actual use, the limiting ring 8 is extended into the annular groove 9 to push the first push ring 31. The first push ring 31 slides on the sliding connecting rod 33, the return spring 34 is squeezed, and the push block 35 squeezes the inclined surface on the clamping plate 37, forcing the clamping plate 37 to move downward and squeeze the first spring 38. When the limiting groove 66 moves to the position of the clamping plate 37, the sliding block 65 abuts against the fixed abutment plate 39, forcing the second spring 64 to be squeezed, and the first push ring 31 is released. Under the elastic action of the return spring 34, the first push ring 31 and the push block 35 are driven away from the clamping plate 3 7, under the elastic action of the first spring 38, the clamping plate 37 is driven to be clamped in the limiting groove 66, and the long plate 61 is extended into and fixed on the fixing seat 36, thereby realizing the installation of the metal hose and the compensator. During the movement of the limiting ring 8 and the sealing assembly 7 in the annular groove 9, the sealing ring 74 contacts with the pushing ring plate 101, driving the pushing ring plate 101 to move, and then driving the piston ring plate 104 to squeeze the pushing spring 107 through the sliding fixing rod 102. At this time, the sealing ring 74 is squeezed and deformed to achieve the sealing effect. When the piston ring plate 104 squeezes the pushing spring 107, the second The gas in the cavity 106 flows out from the ventilation pipe 109, and a negative pressure is generated in the first cavity 105. The gas enters the first cavity 105 from the air inlet pipe 108 to prepare for cleaning the sealing gasket residue. When it is necessary to disassemble the metal pipe and the compensator, the first push ring 31 is pushed, so that the push block 35 squeezes the clamping plate 37, so that the clamping plate 37 moves out of the limit clamping groove 66, and the restriction of the clamping plate 37 on the extension of the long plate 61 is released. Under the elastic action of the second spring 64, the installation connection sleeve 2 and the installation connection ring 5 are separated. Under the elastic action of the push spring 107, the active The piston ring plate 104 is reset, and the piston ring plate 104 squeezes the gas in the first cavity 105, so that the gas in the first cavity 105 is ejected from the air outlet pipe 103, and the ring plate 101 is pushed to push the sealing ring 74 residue out from the inside of the annular groove 9. At the same time, the gas is ejected from the air outlet of the air outlet pipe 103, thereby cleaning the sealing ring 74 residue in the annular groove 9. The first magnetic ring plate 71 and the second magnetic ring plate 72 are arranged with opposite poles, which is convenient for removing the first connecting ring 73 from the annular mounting groove 75, and then facilitating the replacement of the sealing ring 74, and the sealing performance is guaranteed.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stainless steel metal hose, comprising a metal hose (1), characterized in that: A mounting connection sleeve (2) is fixedly provided on one end of the metal hose (1), a limit assembly (3) is provided on the mounting connection sleeve (2), a mounting groove is provided on the metal hose (1), a limit ring (8) is fixedly provided in the mounting groove, a sealing assembly (7) is provided on the limit ring (8), the limit assembly (3) comprises a fixed block (32) fixedly connected to the mounting connection sleeve (2), one end of the fixed block (32) is fixedly connected to a sliding connecting rod (33), the sealing assembly (7) comprises a first magnetic ring plate (71), a second magnetic ring plate (72), a first connecting ring (73), a sealing ring (74) and an annular mounting groove (75), a first push rod (74) is slidably connected to the sliding connecting rod (33), and a second magnetic ring plate (72) is fixedly connected to the first push rod (74). The movable ring (31) is provided with a reset spring (34) on the sliding connecting rod (33), one end of the reset spring (34) is fixedly connected to the first push ring (31), and the other end of the reset spring (34) is fixedly connected to the fixed block (32). A plurality of push blocks (35) are fixedly installed on the first push ring (31), a plurality of fixed seats (36) are fixedly installed on the mounting connection sleeve (2), a clamping plate (37) is slidably connected to the fixed seat (36), a first spring (38) is fixedly connected to the lower end of the clamping plate (37), and the lower end of the first spring (38) is fixedly connected to the inner bottom of the fixed seat (36), and the annular mounting groove (75) is provided on the limiting ring (8) so that the second magnetic ring plate (72) can extend into it. The first magnetic ring plate (71) is fixedly mounted in the annular mounting groove (75), the second magnetic ring plate (72) is fixedly mounted on one end of the first connecting ring (73) close to the first magnetic ring plate (71), the sealing ring (74) is fixedly mounted on one end of the first connecting ring (73) away from the first magnetic ring plate (71), the first magnetic ring plate (71) and the second magnetic ring plate (72) are arranged with opposite magnetic poles, and also include a pipeline compensator (4), both ends of the pipeline compensator (4) are fixedly provided with mounting connecting rings (5), the mounting connecting ring (5) is provided with a positioning assembly (6), the mounting connecting ring (5) is provided with an annular groove (9), and the annular groove (9) is provided with a pushing cleaning assembly (10) The annular groove (9) allows the limiting ring (8) and the sealing ring (74) to extend therein, the positioning assembly (6) comprises an extending long plate (61), a mounting block (62), a sliding long rod (63), a second spring (64), a sliding block (65), a limiting groove (66) and a sliding transverse groove (67), the extending long plate (61) is fixedly mounted on the mounting connection ring (5), the fixing seat (36) is provided with an extending groove for the extending long plate (61) to extend therein, the limiting groove (66) is provided on the extending long plate (61) for the clamping plate (37) to be clamped therein, the sliding transverse groove (67) is provided on the extending long plate (61) for the pushing block (35) to slide, the mounting block (62) is fixedly connected to the extending long plate (61),The sliding rod (63) is fixedly connected to one end of the mounting block (62), the sliding block (65) is slidably connected to the sliding rod (63), the sliding rod (63) is sleeved on the second spring (64), one end of the second spring (64) is fixedly connected to the sliding block (65), the other end of the second spring (64) is fixedly connected to the mounting block (62), the sliding block (65) is in contact with the fixed abutment plate (39), the pushing cleaning assembly (10) comprises a pushing ring plate (101), a sliding fixed rod (102), an air outlet pipe (103), a piston ring plate (104), a first cavity (105), a second cavity (106), a pushing spring (107), an air intake pipe (108) and a ventilation pipe (109), a cavity is provided in the mounting connection ring (5), and the piston ring plate (104) is slidably connected in the cavity.

2. A stainless steel metal hose according to claim 1, characterized in that: The piston ring plate (104) divides the cavity into a first cavity (105) and a second cavity (106); the push spring (107) is arranged in the second cavity (106); one end of the push spring (107) is fixedly connected to the piston ring plate (104); and the other end of the push spring (107) is fixedly connected to the inner wall of the second cavity (106).

3. A stainless steel metal hose according to claim 2, characterized in that: The second cavity (106) is connected to a ventilation pipe (109), the first cavity (105) is connected to an air intake pipe (108), the air intake pipe (108) is provided with a one-way air intake valve, the push ring plate (101) is slidably connected in the annular groove (9), the air outlet pipe (103) passes through the push ring plate (101) and is fixedly connected to the push ring plate (101), and the other end of the air outlet pipe (103) slides into the first cavity (105).

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