Movable air compressor based on noise reduction and shock absorption structure

Abstract

The invention relates to the technical field of air compressor damping, and discloses a movable air compressor based on a noise reduction and damping structure, which comprises an air storage tank, a magnetic plate, a damping mechanism and an air compressor body, rollers for moving the air storage tank are arranged at the lower end of the air storage tank, the magnetic plate is fixedly mounted on the air storage tank, the damping mechanism is arranged above the magnetic plate, and the air compressor body is arranged above the damping mechanism; the shock absorption mechanism comprises a vertical shock absorption part, an auxiliary oil supply assembly and a horizontal shock absorption part, the auxiliary oil supply assembly is used for intermittently supplying oil to a mechanical transmission part in the air compressor body, the situation that a single spring in the vertical direction is broken and fails during use can be prevented, the shock absorption effect in the vertical direction is improved, and the service life of the air compressor is prolonged. And lubricating oil is supplemented to a transmission part of the air compressor body in time at the moment that the amplitude of vibration is increased, vibration is prevented from being intensified, noise decibel is prevented from being too large, and meanwhile the transmission part is prevented from being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of air compressor vibration reduction, and in particular to a mobile air compressor based on a noise reduction and vibration reduction structure. Background Art

[0002] An air compressor is a device used to compress gas. It is a common power equipment that converts mechanical energy into gas pressure energy. The main function of an air compressor is to supply gas and provide the gas required for production.

[0003] A common mobile air compressor includes an air compressor body, a power source for driving the air compressor body, and a gas tank for storing compressed gas. When in use, first install the mobile wheels under the gas tank, then fix the support plate on the upper end of the gas tank, and fix the power source, air compressor body, and transmission components for transmitting power on the support plate with bolts and nuts.

[0004] As human usage requirements become increasingly stringent, support plates with attached shock absorbers have appeared on the market. Existing shock absorbers usually only come with one shock absorber spring. When a single shock absorber spring breaks and fails, the entire shock absorber system will completely fail. Moreover, during continuous use of the air compressor, its internal mechanical transmission components have a large demand for lubricating oil. The market usually judges the lubricating oil consumption value by manually observing the oil column, and is unable to supply oil to the air compressor body in time, resulting in dry friction and wear between components, causing the vibration amplitude to increase, the noise to become louder, and even causing permanent damage to the components.

[0005] In view of the above problems, it is necessary to improve the existing equipment. Summary of the Invention

[0006] The object of the present invention is to provide a mobile air compressor based on a noise reduction and vibration reduction structure to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a mobile air compressor based on a noise reduction and vibration reduction structure, comprising an air storage tank, a magnetic plate, a vibration reduction mechanism, and an air compressor body; a roller for moving the air storage tank is provided at the lower end of the air storage tank, the magnetic plate is fixedly mounted on the air storage tank, the vibration reduction mechanism is provided above the magnetic plate, and the air compressor body is provided above the vibration reduction mechanism;

[0008] The shock absorbing mechanism includes a vertical shock absorbing member, an auxiliary oil supply assembly and a horizontal shock absorbing member. The auxiliary oil supply assembly is used to intermittently supply oil to the mechanical transmission components inside the air compressor body.

[0009] Preferably, an inner limit bin is movably provided on the upper end surface of the magnetic plate, and the inner limit bin is configured as a rectangular box structure. A support plate is provided on the inner wall of the inner limit bin in sliding contact, and the upper end surface of the support plate is fixedly connected to the air compressor body. There are multiple vertical shock absorbers, all of which are arranged between the support plate and the inner wall of the lower end of the inner limit bin.

[0010] Preferably, an outer limit frame is fixed to the upper end surface of the magnetic plate, and the outer limit frame is arranged on the periphery of the inner limit frame. The outer limit frame is configured as a rectangle, and there are at least four horizontal shock absorbers, which are respectively arranged between the inner limit bin and the outer limit frame, and the horizontal shock absorbers are symmetrically distributed in pairs.

[0011] Preferably, the vertical shock absorber includes an air cylinder, a sliding rod and a spring; the air cylinder is fixed on the inner wall of the lower end of the inner limit bin, the sliding rod is sealingly slidably arranged in the air cylinder, and the sliding rod is fixed to the support plate, and the spring is connected between the support plate and the air cylinder.

[0012] Preferably, the auxiliary oil supply assembly includes an oil storage box, a first air intake pipe, a second air intake pipe, a guide pipe and an oil guide hose; the oil storage box is fixed on the inner wall of the lower end of the inner limit bin, a slide groove is opened in the side wall of the oil storage box, one end of the first intake pipe is connected with one end of multiple air cylinders, the other end of the first intake pipe is connected with the slide groove, one end of the second intake pipe is connected with the other end of multiple air cylinders, the other end of the second intake pipe is connected with the oil storage box, the lower end of the guide pipe is fixed to the upper end of the oil storage box and is connected with the oil storage box, the upper end of the guide pipe slides through the supporting plate, and an oil inlet is provided on the air compressor body, one end of the oil guide hose is connected with the upper end of the guide pipe, and the other end is connected with the oil inlet.

[0013] Preferably, the auxiliary oil supply assembly also includes a block, which is sealed and slidably arranged in the slide groove, a rack, which is fixed at the upper end of the block, a second spring, which is connected between the block and the inner wall of the lower end of the slide groove, a rotating shaft, which is rotatably set in the upper end wall of the oil storage box, a gear, which is fixed at one end of the rotating shaft and rotatably set in the slide groove, the rack and the gear are intermittently meshed, a ball valve, which is fixed at the other end of the rotating shaft and is sealed and rotatably set in the guide pipe, and a piston disc, which is sealed and slidably set in the oil storage box, and the space below the piston disc is connected to the second air intake pipe.

[0014] Preferably, an oil filling hole is provided on the side wall of the oil storage box, and the oil filling hole is connected to the external oil supply equipment through an oil supply hose, and the oil supply hose is arranged through the supporting plate.

[0015] Preferably, the horizontal shock absorber includes an air cylinder 2, a slide rod 2, a spring 3, a one-way valve 1, a one-way valve 2 and an air supply hose; the air cylinder 2 is fixed on the inner wall of the outer limit frame, the slide rod 2 is sealingly slidably arranged in the air cylinder 2, the spring 3 is connected between the outer wall of the inner limit bin and the air cylinder 2, and an air inlet hole and an exhaust hole are opened on the side wall of the air cylinder 2, the one-way valve 1 is sealed installed in the air inlet hole, the one-way valve 2 is sealed installed in the exhaust hole, one end of the air supply hose is connected to the exhaust hole, and the other end passes through the magnetic plate and is connected to the air storage tank.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The mobile air compressor based on the noise reduction and shock absorption structure can prevent the single spring in the vertical direction from breaking and failing during use by setting the vertical shock absorption part and the auxiliary oil supply component for mutual use, thereby improving the shock absorption effect in the vertical direction. In addition, when the amplitude increases, the transmission parts of the air compressor body are replenished with lubricating oil in time to prevent the vibration from being aggravated and the noise from being too loud, and at the same time prevent the transmission parts from being damaged.

[0018] 2. This mobile air compressor based on the noise reduction and shock absorption structure can prevent the single spring in the horizontal direction from breaking and failing during use by setting a horizontal shock absorption part, thereby improving the horizontal shock absorption effect. It can also use the power of horizontal vibration to compress and store air, thereby accelerating the storage efficiency in the air tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a 3D physical image of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the distribution of the inner limit bin and the outer limit frame of the present invention;

[0022] Figure 4 This is a schematic diagram of the position distribution of the auxiliary oil supply components of the present invention;

[0023] Figure 5 Schematic diagram of the structure distribution of the shock absorbing mechanism of the present invention;

[0024] Figure 6 Schematic diagram of the cross-sectional structure of the vertical shock absorbing member of the present invention;

[0025] Figure 7 Schematic diagram of the cross-sectional structure of the oil storage box of the present invention;

[0026] Figure 8 It is a schematic diagram of the cross-sectional structure of the horizontal shock absorbing member of the present invention.

[0027] Figure: 1, air tank; 2, magnetic plate; 3, shock absorption mechanism; 5, air compressor body; 6, vertical shock absorption member; 7, auxiliary oil supply assembly; 8, horizontal shock absorption member; 21, inner limit bin; 22, support plate; 23, outer limit frame; 61, air cylinder 1; 62, slide bar 1; 63, spring 1; 71, oil storage box; 72, first air inlet pipe; 73, second air inlet pipe; 74, guide pipe; 75, Oil guide hose; 711, slide; 51, oil inlet; 76, block; 77, rack; 78, spring 2; 79, rotating shaft; 701, gear; 702, ball valve; 703, piston disc; 10, oil supply hose; 91, air cylinder 2; 911, air inlet hole; 912, exhaust hole; 92, slide rod 2; 93, spring 3; 94, one-way valve 1; 95, one-way valve 2; 96, air supply hose. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] See also Figures 1 to 8 The present invention provides a technical solution: a mobile air compressor based on a noise reduction and vibration reduction structure, comprising an air tank 1, a magnetic plate 2, a vibration reduction mechanism 3 and an air compressor body 5; a roller for moving the air tank 1 is provided at the lower end of the air tank 1, the magnetic plate 2 is fixedly mounted on the air tank 1, the vibration reduction mechanism 3 is arranged above the magnetic plate 2, and the air compressor body 5 is arranged above the vibration reduction mechanism 3;

[0030] The shock absorbing mechanism 3 includes a vertical shock absorbing member 6 , an auxiliary oil supply assembly 7 and a horizontal shock absorbing member 8 . The auxiliary oil supply assembly 7 is used to intermittently supply oil to the mechanical transmission components inside the air compressor body 5 .

[0031] It should be explained that the air compressor body 5 in the present application includes a driving source air compressor mechanical transmission mechanism, and the electric driving source transmits power to the air compressor mechanical transmission mechanism to complete periodic air compression, and enables the compressed air to be transported to the air storage tank 1 through the connecting pipe.

[0032] In addition, a pressure gauge is provided on the gas storage tank 1 to facilitate the staff to monitor the status inside the tank.

[0033] As a preferred embodiment, an inner limit bin 21 is movably provided on the upper end surface of the magnetic plate 2, and the inner limit bin 21 is configured as a rectangular box structure. A support plate 22 is in sliding contact with the inner wall of the inner limit bin 21, and the upper end surface of the support plate 22 is fixedly connected to the air compressor body 5. There are multiple vertical shock absorbers 6, all of which are arranged between the support plate 22 and the inner wall of the lower end of the inner limit bin 21.

[0034] That is to say, the vertical vibration generated by the air compressor body 5 will cause the supporting plate 22 to move up and down in the inner limit chamber 21, and energy is dissipated through the vertical shock absorbing member 6.

[0035] As a preferred embodiment, an outer limit frame 23 is fixed to the upper end surface of the magnetic plate 2, and the outer limit frame 23 is arranged on the periphery of the inner limit frame 21. The outer limit frame 23 is configured as a rectangle, and there are at least four horizontal shock absorbers 8, which are respectively arranged between the inner limit bin 21 and the outer limit frame 23, and the horizontal shock absorbers 8 are symmetrically distributed in pairs.

[0036] It should be explained that the material of the inner limit bin 21 is configured as carbon steel, which has strong magnetic attraction properties. That is to say, the inner limit bin 21 can only move in the horizontal plane to avoid vibration causing the inner limit bin 21 to separate from the magnetic plate 2.

[0037] The horizontal vibration generated by the air compressor body 5 is dissipated through the horizontal shock absorbing member 8 .

[0038] As a preferred embodiment, the vertical shock absorber 6 includes an air cylinder 61, a slide rod 62 and a spring 63; the air cylinder 61 is fixed on the inner wall of the lower end of the inner limit bin 21, the slide rod 62 is sealingly slidably arranged in the air cylinder 61, and the slide rod 62 is fixed to the support plate 22, and the spring 63 is connected between the support plate 22 and the air cylinder 61.

[0039] The vibration in the vertical direction generated by the air compressor body 5 can be dissipated through multiple springs 63 to achieve a shock absorption effect.

[0040] The air inlet 51 of the air compressor body 5 is connected with the air inlet 51 through the oil pump 74, and the air inlet 51 of the air compressor body 5 is connected with the air pump 74 through the oil pump 76.

[0041] As a preferred embodiment, the auxiliary oil supply assembly 7 also includes a block 76, which is sealed and slidably arranged in the slide groove 711, a rack 77, which is fixed at the upper end of the block 76, a spring 2 78, which is connected between the block 76 and the inner wall of the lower end of the slide groove 711, a rotating shaft 79, which is rotatably set in the upper end wall of the oil storage box 71, a gear 701, which is fixed at one end of the rotating shaft 79 and rotatably set in the slide groove 711, the rack 77 intermittently meshes with the gear 701, a ball valve 702, which is fixed at the other end of the rotating shaft 79 and is sealed and rotatably set in the guide tube 74, and a piston disc 703, which is sealed and slidably set in the oil storage box 71, and the space below the piston disc 703 is connected to the second air intake pipe 73.

[0042] It should be explained that lubricating oil for lubricating the mechanical transmission components in the air compressor body 5 is stored above the piston disc 703 .

[0043] Please refer to the following for details: Figures 4 to 7 First, if one of the second spring 78 and the first spring 63 breaks and fails, the other can still ensure basic buffering effect, preventing the vertical buffering function from completely failing. Secondly, when the air compressor body 5 generates vertical vibration and causes the support plate 22 to move downward, the slide bar 62 moves downward, and part of the gas will enter the slide groove 711 below the block 76 through the first air inlet pipe 72, which can overcome the damping effect of the second spring 78 and push the block 76 and the rack 77 to move upward synchronously, while the other part of the gas will enter the space below the piston plate 703 through the second air inlet pipe 73, causing the piston plate 703 to provide a certain pressure on the lubricating oil above it, so as to facilitate the oil supply work described later.

[0044] If the vibration generated by the air compressor body 5 is strong, that is, the support plate 22 pushes the slide bar 62 downward too much, the rack 77 will mesh with the gear 701, and the gear 701 will drive the ball valve 702 to rotate a certain angle through the rotating shaft 79, that is, the ball valve 702 will open, and the lubricating oil in the oil storage box 71 will flow through the guide pipe 74 and the oil guide hose 75 into the oil inlet 51, thereby lubricating the mechanical transmission components in the air compressor body 5, thereby reducing the vibration amplitude;

[0045] When the air compressor body 5 vibrates in the vertical direction and causes the supporting plate 22 to move upward, the rack 77 will mesh with the gear 701 in the reverse direction again, thereby closing the ball valve 702 to avoid excessive waste of lubricating oil.

[0046] It should be noted that the meshing process between the rack 77 and the gear 701 is intermittent, that is, meshing occurs occasionally, and the consumption of lubricating oil is negligible. Therefore, lubricating oil can be dripped between the two during installation, and there is no need to consider the step of dripping lubricating oil on the rack 77 and the gear 701 during the operation of the air compressor body 5.

[0047] As a preferred embodiment, an oil filling hole is opened on the side wall of the oil storage box 71, and the oil filling hole is connected to the external oil supply equipment through an oil supply hose 10, and the oil supply hose 10 is set through the supporting plate 22.

[0048] That is to say, when the amount of lubricating oil in the oil storage box 71 is running low, the external oil supply device is started to supply lubricating oil to the oil storage box 71 to ensure that the auxiliary oil supply component 7 can operate normally.

[0049] As a preferred embodiment, the horizontal shock absorber 8 includes an air cylinder 2 91, a slide rod 2 92, a spring 3 93, a one-way valve 1 94, a one-way valve 2 95 and an air supply hose 96; the air cylinder 2 91 is fixed on the inner wall of the outer limit frame 23, the slide rod 2 92 is sealingly slidably arranged in the air cylinder 2 91, the spring 3 93 is connected between the outer wall of the inner limit bin 21 and the air cylinder 2 91, and an air inlet hole 911 and an exhaust hole 912 are opened on the side wall of the air cylinder 2 91, the one-way valve 1 94 is sealed installed in the air inlet hole 911, the one-way valve 2 95 is sealed installed in the exhaust hole 912, one end of the air supply hose 96 is connected to the exhaust hole 912, and the other end passes through the magnetic plate 2 and is connected to the gas storage tank 1.

[0050] Please note that Figure 8 , the conducting direction of the one-way valve 1 94 is downward, and the conducting direction of the one-way valve 2 95 is downward.

[0051] Please refer to the following for details: Figure 4 and Figure 8First, if the third spring 93 breaks and fails, the enclosed air between the second air cylinder 91 and the second slide bar 92 can ensure a basic buffering effect, preventing the vertical buffering function from completely failing. Secondly, when the air compressor body 5 generates horizontal vibrations and causes the support plate 22 to move to the left, the second slide bar 92 moves to the left, and the air pressure between the second air cylinder 91 and the second slide bar 92 increases. When the air pressure between the second air cylinder 91 and the second slide bar 92 exceeds the air pressure in the air storage tank 1, the compressed gas between the second air cylinder 91 and the second slide bar 92 will enter the air storage tank 1 through the air supply hose 96. Therefore, the vibration power is used to compress and store the air, thereby accelerating the storage efficiency in the air storage tank 1.

[0052] When the air compressor body 5 vibrates in the horizontal direction and causes the supporting plate 22 to move to the right, the one-way valve 2 95 is closed, the one-way valve 1 94 is opened, and the outside air enters the air cylinder 2 91 to perform repeated inflation operations on the air storage tank 1 .

[0053] The mobile air compressor based on the noise reduction and shock absorption structure has the following working process: first, the driving source in the air compressor body 5 is started to start the air compression work, and the vertical shock absorber 6 and the horizontal shock absorber 8 can dissipate the energy of the vibration generated by the air compressor body 5. When the air compressor body 5 works for a period of time and dry friction occurs in the air compressor body 5, the vibration caused by direct contact between the components is aggravated and accompanied by large noise, the auxiliary oil supply component 7 uses the amplitude change generated by the vertical shock absorber 6 to supply oil in time, so that the lubricating oil can be quickly replenished to prevent the mechanical transmission components in the air compressor body 5 from being seriously damaged, while reducing the vibration amplitude and the noise decibel.

[0054] In summary, the mobile air compressor based on the noise reduction and shock absorption structure achieves the purpose of automatically and timely replenishing lubricating oil, meeting people's usage needs.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile air compressor based on a noise reduction and vibration reduction structure, characterized in that: The invention comprises an air storage tank (1), a magnetic plate (2), a shock absorbing mechanism (3) and an air compressor body (5); a roller for moving the air storage tank (1) is provided at the lower end of the air storage tank (1); the magnetic plate (2) is fixedly mounted on the air storage tank (1); the shock absorbing mechanism (3) is provided above the magnetic plate (2); and the air compressor body (5) is provided above the shock absorbing mechanism (3); The shock absorbing mechanism (3) comprises a vertical shock absorbing member (6), an auxiliary oil supply assembly (7) and a horizontal shock absorbing member (8), wherein the auxiliary oil supply assembly (7) is used to intermittently supply oil to the mechanical transmission components inside the air compressor body (5).

2. The mobile air compressor based on the noise reduction and vibration reduction structure according to claim 1 is characterized in that: An inner limit bin (21) is movably provided on the upper end surface of the magnetic plate (2), and the inner limit bin (21) is configured as a rectangular box structure. A supporting plate (22) is slidably contacted on the inner wall of the inner limit bin (21), and the upper end surface of the supporting plate (22) is fixedly connected to the air compressor body (5). A plurality of vertical shock absorbing members (6) are provided, and are all arranged between the supporting plate (22) and the inner wall of the lower end of the inner limit bin (21).

3. The mobile air compressor based on the noise reduction and vibration reduction structure according to claim 1 is characterized in that: An outer limit frame (23) is fixed to the upper end surface of the magnetic plate (2), and the outer limit frame (23) is arranged on the periphery of the inner limit bin (21). The outer limit frame (23) is configured as a rectangle. At least four horizontal shock absorbing members (8) are configured, and are respectively arranged between the inner limit bin (21) and the outer limit frame (23). The horizontal shock absorbing members (8) are symmetrically distributed in pairs.

4. The mobile air compressor based on the noise reduction and vibration reduction structure according to claim 2 is characterized in that: The vertical shock absorbing member (6) includes an air cylinder (61), a sliding rod (62) and a spring (63); the air cylinder (61) is fixed on the inner wall of the lower end of the inner limit bin (21), the sliding rod (62) is sealingly slidably arranged in the air cylinder (61), and the sliding rod (62) is fixed to the supporting plate (22), and the spring (63) is connected between the supporting plate (22) and the air cylinder (61).

5. The mobile air compressor based on the noise reduction and vibration reduction structure according to claim 4 is characterized in that: The auxiliary oil supply assembly (7) includes an oil storage box (71), a first air intake pipe (72), a second air intake pipe (73), a guide pipe (74) and an oil guide hose (75); the oil storage box (71) is fixed on the inner wall of the lower end of the inner limit bin (21); a chute (711) is provided in the side wall of the oil storage box (71); one end of the first air intake pipe (72) is communicated with one end of one of the plurality of air cylinders (61); the other end of the first air intake pipe (72) is communicated with the chute (711); the second air intake pipe (73) is connected to the chute (711); One end of the second air inlet pipe (73) is connected to the other end of one of the multiple air cylinders (61), the other end of the second air inlet pipe (73) is connected to the oil storage box (71), the lower end of the guide pipe (74) is fixed to the upper end of the oil storage box (71) and is connected to the oil storage box (71), the upper end of the guide pipe (74) slides through the support plate (22), an oil inlet (51) is provided on the air compressor body (5), one end of the oil guide hose (75) is connected to the upper end of the guide pipe (74), and the other end is connected to the oil inlet (51).

6. The mobile air compressor based on the noise reduction and vibration reduction structure according to claim 5, characterized in that: The auxiliary oil supply assembly (7) further includes a block (76) which is sealingly slidably arranged in the slide groove (711), a rack (77) which is fixed at the upper end of the block (76), a second spring (78) which is connected between the block (76) and the inner wall of the lower end of the slide groove (711), a rotating shaft (79) which is rotatably arranged in the upper end wall of the oil storage box (71), a gear (701) which is fixed at one end of the rotating shaft (79) and rotatably arranged in the slide groove (711), the rack (77) and the gear (701) which are intermittently meshed, a ball valve (702) which is fixed at the other end of the rotating shaft (79) and sealingly rotatably arranged in the guide pipe (74), and a piston disc (703) which is sealingly slidably arranged in the oil storage box (71), and the space below the piston disc (703) is connected to the second air inlet pipe (73).

7. The mobile air compressor based on the noise reduction and vibration reduction structure according to claim 6, characterized in that: An oil filling hole is provided on the side wall of the oil storage box (71), and the oil filling hole is communicated with an external oil supply device via an oil supply hose (10), and the oil supply hose (10) is arranged to pass through the supporting plate (22).

8. The mobile air compressor based on the noise reduction and vibration reduction structure according to claim 3 is characterized in that: The horizontal shock absorbing member (8) comprises an air cylinder (91), a second slide bar (92), a third spring (93), a first one-way valve (94), a second one-way valve (95) and an air supply hose (96); the second air cylinder (91) is fixed on the inner wall of the outer limit frame (23); the second slide bar (92) is sealingly slidably arranged in the second air cylinder (91); the third spring (93) is connected between the outer wall of the inner limit bin (21) and the second air cylinder (91); an air inlet (911) and an air outlet (912) are provided on the side wall of the second air cylinder (91); the first one-way valve (94) is sealingly installed in the air inlet (911); the second one-way valve (95) is sealingly installed in the air outlet (912); one end of the air supply hose (96) is connected to the air outlet (912); the other end passes through the magnetic plate (2) and is connected to the air storage tank (1).

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