Anti-backflow efficient air compressor

Abstract

The utility model provides an anti-backflow efficient air compressor, which relates to the technical field of air compressors, and comprises an air storage tank, a compression mechanism is arranged at the upper end of the air storage tank, the compression mechanism is used for compressing external air and transporting the compressed air into the air storage tank, and the compression mechanism comprises a placing box. And the placing box is fixedly mounted on the upper surface of the gas storage tank and is close to one end of the pressure gauge. After the compression mechanism stops working, multiple sealing work is carried out between the conveying pipe and the second connecting groove through attachment between the baffle and the third connecting groove and clamping between the annular sealing groove and the annular sealing block, and therefore when the pressure intensity in the air storage tank and the conveying pipe is higher, the baffle is pushed by compressed air, and therefore the conveying pipe can be sealed more stably. And the annular sealing groove and the annular sealing block are clamped and connected more stably, so that the situation that compressed air cannot flow back through the annular sealing groove and the annular sealing block is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to an anti-backflow high-efficiency air compressor. Background Art

[0002] An air compressor is the main component of an air source device. It converts the mechanical energy of a prime mover (usually an electric motor) into gas pressure energy. It is a compressed air pressure generator and utilizes the principle of air compression to produce compressed air exceeding atmospheric pressure. During the use of an air compressor, air needs to be injected into the air tank according to the internal pressure setting of the air tank. This allows the air to be compressed inside the air tank, making it easier for users to use the compressed air inside the air tank. However, continuously compressing the air inside the air tank will gradually increase the pressure inside the air tank to greater than the external pressure. As a result, after the air compressor stops working, the compressed air inside the air tank and the transportation pipeline will flow back, requiring the air compressor to start working again and compress the air inside the air tank, which greatly increases the energy consumption of the air compressor. Therefore, we propose a high-efficiency air compressor with anti-backflow to solve this problem. This prevents the compressed air inside the air tank and the transportation pipeline from flowing back after the air compressor stops working, thereby reducing the energy consumption of the air compressor. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the utility model provides an anti-backflow high-efficiency air compressor, which solves the problem that after the air compressor stops working, the compressed air inside the air tank and the transportation pipeline will flow back, requiring the air compressor to work again to compress the air inside the air tank, thereby greatly increasing the energy consumption of the air compressor.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A backflow-proof high-efficiency air compressor comprises an air storage tank, a pressure gauge being installed on one side of the air storage tank;

[0006] A compression mechanism is installed at the upper end of the gas storage tank, and the compression mechanism is used to compress the external air and transport it to the interior of the gas storage tank. The compression mechanism includes a placement box, which is fixedly installed on the upper surface of the gas storage tank and close to one end of the pressure gauge. A pressurizing groove is provided at the lower end of the interior of the placement box, and a piston is movably installed inside the pressurizing groove. First connecting grooves are respectively provided on both sides of the upper end of the placement box, and air intake pipes are fixedly installed and penetrated on both sides of the upper end of the placement box, and the air intake pipes are respectively connected to the first connecting grooves;

[0007] A plurality of second air inlet holes are provided between the first connecting groove and the pressurizing groove, and first sealing plugs are movably installed at the lower ends of the second air inlet holes. A second connecting groove is provided in the middle of the upper end of the placement box, and a second sealing groove is provided between the second connecting groove and the pressurizing groove. A second sealing plug is fitted in the interior of the second sealing groove. A transport pipe is fixedly installed through the upper end of the second connecting groove, and one end of the transport pipe is installed through the upper end of the gas storage tank.

[0008] An auxiliary mechanism is installed on the outside of the tube body of the transport tube, and the auxiliary mechanism is used to cooperate with the second sealing plug to seal the gas inside the gas storage tank. The auxiliary mechanism includes a fixed block, which is fixedly installed on the outside of the tube body of the transport tube. A third connecting groove is provided inside the fixed block, and the third connecting groove and the transport tube are connected to each other. A baffle is movably installed inside the third connecting groove and on a side close to the placement box;

[0009] A water pump for discharging the liquid retained in the gas storage tank is installed on the upper surface of the gas storage tank and at one end away from the compression mechanism;

[0010] An exhaust pipe is fixedly installed and penetrated through one end of the gas storage tank away from the pressure gauge.

[0011] Preferably, a plurality of sealing rings are installed on the upper end of the outer side of the piston, and the sealing rings are respectively fitted with the inner surface of the pressure groove;

[0012] A push rod for controlling the piston to move up and down is movably installed at the lower end of the inner part of the pressure groove, and the push rod is movably connected to the piston.

[0013] Preferably, the rear end of the push rod movably passes through the interior of the pressurizing tank and is connected to the output end of the motor, and the motor is installed on the rear side of the placement box;

[0014] The push rod is located on the outside of the middle rod body and is movably installed with a push plate. The lower end of the piston is fixedly installed with a first fixed rod. The upper end of the push plate is movably installed on the outside of the rod body of the first fixed rod.

[0015] Preferably, a sealing cover is installed on the upper end of the air inlet pipe through a thread, and a plurality of filter layers are installed inside the sealing cover. A plurality of first air inlet holes are penetrated on the side of the sealing cover away from the air inlet pipe, and the first air inlet holes and the filter layers are parallel to each other.

[0016] Preferably, the lower ends of the second air inlet holes are respectively provided with first sealing grooves, and the first sealing plugs are respectively fitted inside the first sealing grooves;

[0017] The upper ends of the first sealing plugs are fixedly installed with first connecting frames, and the upper ends of the first connecting frames are movably installed inside the first movable grooves. The first movable grooves are respectively arranged inside the placement box, and the lower ends of the first movable grooves are connected to the first sealing grooves. The first springs are respectively sleeved and installed on the outside of the rod body of the first connecting frame located inside the first movable groove.

[0018] Preferably, a guide groove is provided at the inner upper end of the pressurizing groove, and the guide groove is connected to the second sealing groove;

[0019] Placement grooves are respectively provided at both ends of the lower surface of the second connecting groove, and the placement grooves are connected to the second sealing groove. A triangular positioning block is mounted inside the placement groove, and the triangular positioning block is fixedly connected to the second sealing plug.

[0020] The lower end of the placement slot is provided with a second movable slot, and a second connecting frame is movably installed inside the second movable slot. The upper end of the second connecting frame is fixedly connected to the triangular positioning block, and the second spring is installed on the outside of the rod body of the second connecting frame located inside the second movable slot.

[0021] Preferably, a convex block is fixedly mounted on the outer side of each of the first sealing plug and the second sealing plug, and the convex blocks are respectively engaged and mounted inside the concave grooves, and the concave grooves are respectively provided inside the first sealing groove and the second sealing groove;

[0022] One end of the transport pipe passes through the upper end of the placement box and is connected to the second connecting groove.

[0023] Preferably, a second fixing rod is fixedly installed inside the third connecting groove and at one end close to the placement box, and the upper end of the baffle is movably installed through the outside of the rod body of the second fixing rod;

[0024] An annular sealing block is fixedly installed on the side of the baffle close to the placement box, and an annular sealing groove is provided inside the third connecting groove and on the side away from the water pump. The annular sealing groove and the transport pipe are parallel to each other, and the annular sealing block is snap-fitted and installed inside the annular sealing groove.

[0025] Preferably, a limiting block is fixedly installed on the outer side of the rod body of the second fixing rod, and the limiting block is snap-fitted and installed inside the limiting groove, and the limiting groove is provided at the inner upper end of the baffle.

[0026] Preferably, the water pump and the water pumping pipe are connected to each other, and the water pumping pipe is installed through the interior of the gas storage tank;

[0027] A valve is installed inside the exhaust pipe.

[0028] 1. In the present invention, after the compression mechanism stops working, multiple sealing operations are performed between the transport pipe and the second connecting groove by fitting between the baffle and the third connecting groove and snapping between the annular sealing groove and the annular sealing block. Therefore, when the pressure inside the gas storage tank and the transport pipe is higher, as the compressed air pushes the baffle, the annular sealing groove and the annular sealing block are more stably snapped together, so that the compressed air cannot flow back through the annular sealing groove and the annular sealing block. In addition, through the cooperation between the limit block and the limit groove, the baffle will not deviate during the rotation process, so that the baffle can more stably drive the annular sealing block and the annular sealing groove to remain parallel, so that it can better protect the compressed air inside the gas storage tank, reduce the overall energy consumption of the compression mechanism, and be simpler and more convenient.

[0029] 2. In the present invention, the amount of air inside a single pressurization tank is increased by simultaneously taking in air between multiple air intake pipes, thereby improving the efficiency of air compression and transportation when compressing the air in a single time, greatly improving the efficiency of the compression mechanism in transporting the compressed air required inside the air storage tank, and being simpler and more convenient.

[0030] 3. In the present invention, when air enters the interior of the air intake pipe through the first air intake hole, the impurities contained in the air will be filtered through the filter layer, thereby preventing dust and other impurities contained in the air from entering the interior of the pressurized tank and causing blockage and corrosion to the pressurized tank, the transport pipe and the interior of the gas storage tank, thereby greatly improving the overall service life. At the same time, since the sealing cover and the air intake pipe are installed through threads, it is convenient for the user to remove the sealing cover and replace the filter layer inside the sealing cover, which is simpler and more convenient.

[0031] 4. In the present invention, the first sealing plug and the second sealing plug and the first sealing groove and the second sealing groove are engaged with each other through the fit between the protrusion and the concave groove, thereby increasing the fit area between the first sealing plug and the second sealing plug, and avoiding air leakage through the first sealing plug, the second sealing plug and the first sealing groove, the second sealing groove to the greatest extent, thereby improving the overall working efficiency of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of the second sealing plug of the utility model;

[0034] Figure 3 This is a front view structural diagram of the present utility model;

[0035] Figure 4It is a side structural schematic diagram of the utility model;

[0036] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle;

[0037] Figure 6 yes Figure 3 Schematic diagram of the cross-sectional structure at the middle BB

[0038] Figure 7 yes Figure 3 A schematic diagram of the cross-sectional structure at CC;

[0039] Figure 8 yes Figure 4 Schematic diagram of the cross-sectional structure at DD;

[0040] Figure 9 yes Figure 5 Schematic diagram of the enlarged three-dimensional structure at E;

[0041] Figure 10 yes Figure 7 Schematic diagram of the enlarged three-dimensional structure at F in the middle;

[0042] Figure 11 yes Figure 8 Schematic diagram of the enlarged three-dimensional structure at G in the middle;

[0043] Figure 12 yes Figure 8 Schematic diagram of the enlarged three-dimensional structure at H in the middle;

[0044] Figure 13 yes Figure 8 A schematic diagram of the enlarged three-dimensional structure at position I in the middle;

[0045] Figure 14 yes Figure 8 Schematic diagram of the enlarged three-dimensional structure at J in the middle.

[0046] Figure: 1, gas storage tank; 2, pressure gauge; 3, compression mechanism; 301, placement box; 302, pressurization tank; 303, piston; 304, sealing ring; 305, first connecting groove; 306, air inlet pipe; 307, sealing cover; 308, first air inlet hole; 309, filter layer; 310, first fixing rod; 311, push plate; 312, push rod; 313, motor; 314, second air inlet hole; 315, first sealing plug; 316, first sealing groove; 317, first connecting frame; 318, first movable groove; 319, first spring; 320, guide groove ; 321. Second sealing plug; 322. Second sealing groove; 323. Concave groove; 324. Protrusion; 325. Triangular positioning block; 326. Placement groove; 327. Second movable groove; 328. Second connecting frame; 329. Second spring; 330. Second connecting groove; 331. Transport pipe; 4. Auxiliary mechanism; 401. Fixed block; 402. Third connecting groove; 403. Baffle; 404. Second fixing rod; 405. Annular sealing groove; 406. Annular sealing block; 407. Limit block; 408. Limit groove; 5. Water pump; 6. Suction pipe; 7. Exhaust pipe. DETAILED DESCRIPTION

[0047] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0048] like Figures 1 to 14 As shown, a backflow-proof high-efficiency air compressor includes an air storage tank 1, and a pressure gauge 2 is installed on one side of the air storage tank 1;

[0049] A compression mechanism 3 is installed at the upper end of the gas storage tank 1. The compression mechanism 3 is used to compress the external air and transport it to the interior of the gas storage tank 1. The compression mechanism 3 includes a storage box 301. The storage box 301 is fixedly installed on the upper surface of the gas storage tank 1 and close to one end of the pressure gauge 2. A pressurizing groove 302 is provided at the lower end of the storage box 301. A piston 303 is movably installed inside the pressurizing groove 302. First connecting grooves 305 are respectively provided on both sides of the upper end of the storage box 301. Inlet pipes 306 are fixedly installed and penetrated on both sides of the upper end of the storage box 301, and the air intake pipes 306 are respectively connected to the first connecting grooves 305.

[0050] A plurality of second air inlet holes 314 are provided between the first connecting groove 305 and the pressurizing groove 302. First sealing plugs 315 are movably installed at the lower ends of the second air inlet holes 314. A second connecting groove 330 is provided in the middle of the upper end of the storage box 301. A second sealing groove 322 is provided between the second connecting groove 330 and the pressurizing groove 302. A second sealing plug 321 is fitted into the interior of the second sealing groove 322. A transport pipe 331 is fixedly installed and installed at the upper end of the second connecting groove 330, and one end of the transport pipe 331 is installed and installed in the upper end of the gas storage tank 1.

[0051] An auxiliary mechanism 4 is installed on the outside of the transport tube 331. The auxiliary mechanism 4 is used to cooperate with the second sealing plug 321 to seal the gas inside the gas storage tank 1. The auxiliary mechanism 4 includes a fixing block 401, which is fixedly installed on the outside of the transport tube 331. A third connecting groove 402 is provided inside the fixing block 401, and the third connecting groove 402 and the transport tube 331 are connected to each other. A baffle 403 is movably installed inside the third connecting groove 402 and on a side close to the storage box 301.

[0052] A water pump 5 for discharging the liquid retained in the gas storage tank 1 is installed on the upper surface of the gas storage tank 1 and at one end away from the compression mechanism 3;

[0053] An exhaust pipe 7 is fixedly installed through one end of the gas storage tank 1 away from the pressure gauge 2 .

[0054] like Figure 5 、 Figure 9 and Figure 13 As shown, in the specific setting, several sealing rings 304 are respectively installed on the upper end of the outer side of the piston 303, and the sealing rings 304 are respectively fitted with the inner surface of the pressurizing groove 302; the inner lower end of the pressurizing groove 302 is movably installed with a push rod 312 for controlling the piston 303 to move up and down, and the push rod 312 is movably connected to the piston 303, and the rear end of the push rod 312 movably passes through the interior of the pressurizing groove 302 and is interconnected with the output end of the motor 313, and the motor 313 is installed on the rear side of the placement box 301; the push rod 312 is located in the middle of the outer side of the rod body and is movably installed with a push plate 311, the lower end of the piston 303 is fixedly installed with a first fixed rod 310, and the upper end of the push plate 311 is movably installed through the outer side of the rod body of the first fixed rod 310.

[0055] During the movement of the piston 303, the sealing ring 304 moves along with the piston 303 to prevent air from leaking between the piston 303 and the pressurizing groove 302, thereby improving the overall compression and transportation efficiency of the air.

[0056] And when the piston 303 needs to start compressing and transporting the air, the motor 313 will drive the push rod 312 to rotate, and then the push rod 312 will drive the piston 303 to move up and down inside the pressurized groove 302 through the push plate 311 and the first fixed rod 310, allowing the air to enter the pressurized groove 302 through the first sealing groove 316, and then compress the air and inject it into the transport pipe 331 through the second sealing groove 322, allowing the air to enter the interior of the gas storage tank 1 through the transport pipe 331 for storage, which is simpler and more convenient.

[0057] like Figure 7 and Figure 8 As shown, in the specific setting, a sealing cover 307 is installed on the upper end of the air inlet pipe 306 through a thread, and a plurality of filter layers 309 are installed inside the sealing cover 307. A plurality of first air inlet holes 308 are penetrated on the side of the sealing cover 307 away from the air inlet pipe 306, and the first air inlet holes 308 and the filter layers 309 are parallel to each other.

[0058] When air enters the sealing cover 307 and the air inlet pipe 306 through the first air inlet hole 308, impurities in the air are filtered by the filter layer 309, thereby preventing dust contained in the air from corroding the interior of the pressurizing tank 302, the first sealing groove 316, the second sealing groove 322, and the transport pipe 331, causing the internal sealing effect of the pressurizing tank 302, the first sealing groove 316, the second sealing groove 322, and the transport pipe 331 to deteriorate, making it impossible to stably block the compressed air. It also prevents impurities such as dust from being retained in the gas tank 1 and merging with the liquid in the gas tank 1, thereby corroding the interior of the gas tank 1. This better protects the entire structure and increases the overall service life.

[0059] like Figure 6 and Figure 11 As shown, in the specific setting, the lower end of the second air inlet 314 is respectively provided with a first sealing groove 316, and the first sealing plug 315 is respectively fitted inside the first sealing groove 316; the upper end of the first sealing plug 315 is respectively fixedly installed with a first connecting frame 317, and the upper end of the first connecting frame 317 is respectively movably installed inside the first movable groove 318, and the first movable groove 318 is respectively provided inside the placement box 301, and the lower end of the first movable groove 318 is connected to the first sealing groove 316, and the first spring 319 is respectively sleeved and installed on the outside of the rod body of the first connecting frame 317 located inside the first movable groove 318.

[0060] When the piston 303 moves downward, negative pressure is generated inside the pressurizing groove 302. The negative pressure pulls the first sealing plug 315 downward, thereby opening the second air inlet 314 and the first sealing groove 316, allowing outside air to enter the pressurizing groove 302 through the first connecting groove 305, the second air inlet 314 and the first sealing groove 316. At the same time, as the first sealing plug 315 is pulled, the first sealing plug 315 pulls and squeezes the first spring 319 through the first connecting frame 317.

[0061] Then, when the piston 303 moves upward, the air inside the pressurizing groove 302 is compressed as the piston 303 moves upward. At the same time, when the piston 303 moves upward, the first spring 319 drives the first sealing plug 315 to engage and install inside the first sealing groove 316 through the first connecting frame 317 in a short time, thereby preventing air from flowing back.

[0062] The cooperation between the plurality of first sealing plugs 315 and the first sealing grooves 316 increases the speed at which air enters the pressurized groove 302 , thereby increasing the amount of air compressed at a time and improving the overall compression efficiency.

[0063] like Figure 2 、 Figure 5 and Figure 12 As shown, in the specific setting, a guide groove 320 is provided at the upper end of the inner part of the pressurizing groove 302, and the guide groove 320 and the second sealing groove 322 are connected to each other; a placement groove 326 is provided at both ends of the lower surface of the second connecting groove 330, and the placement groove 326 and the second sealing groove 322 are connected to each other, and a triangular positioning block 325 is installed in the interior of the placement groove 326, and the triangular positioning block 325 and the second sealing plug 321 are fixedly connected; a second movable groove 327 is provided at the lower end of the inner part of the placement groove 326, and a second connecting frame 328 is movably installed in the interior of the second movable groove 327, and the upper end of the second connecting frame 328 is fixedly connected to the triangular positioning block 325, and the second spring 329 is respectively installed on the outside of the rod body of the second connecting frame 328 located in the second movable groove 327.

[0064] When the piston 303 moves downward, negative pressure is generated inside the pressurizing groove 302, and the negative pressure pulls the second sealing plug 321 downward, so that the second sealing plug 321 is more stably installed inside the second sealing groove 322;

[0065] Then, when the piston 303 moves upward, the piston 303 squeezes the air inside the pressurizing groove 302. Then, as the piston 303 moves, the air pushes the second sealing plug 321 upward through the guide groove 320, allowing the second sealing plug 321 to leave the second sealing groove 322. Thus, the air can pass through the second sealing groove 322 and enter the second connecting groove 330. Then, the air enters the gas storage tank 1 through the second connecting groove 330 and the transport pipe 331 for storage.

[0066] When the second sealing plug 321 moves upward, the second sealing plug 321 drives the second connecting frame 328 to move upward through the triangular positioning block 325, so that the second connecting frame 328 can squeeze the second spring 329. Therefore, when the piston 303 moves upward later, the second spring 329 can immediately drive the second sealing plug 321 to be installed in the second sealing groove 322, thereby preventing the compressed air in the second connecting groove 330 from flowing back into the pressurized groove 302, which is more simple and convenient.

[0067] Then, due to the inverted triangle shape of the triangular positioning block 325, when the air passes through the second sealing groove 322 and enters the interior of the second connecting groove 330, the triangular positioning block 325 will not hinder the flow of air. At the same time, the inverted triangle shape can also divide the air, allowing the air to flow to both sides, thereby increasing the air flow rate.

[0068] like Figure 11 and Figure 12 As shown, in the specific setting, the outer sides of the first sealing plug 315 and the second sealing plug 321 are respectively fixed with protrusions 324, and the protrusions 324 are respectively snap-fitted into the inside of the concave grooves 323, and the concave grooves 323 are respectively arranged inside the first sealing groove 316 and the second sealing groove 322; one end of the transport tube 331 passes through the upper end of the placement box 301 and is connected to the second connecting groove 330.

[0069] The protrusion 324 allows the first sealing plug 315 and the second sealing plug 321 to form a multi-layered cone state, and the concave groove 323 allows the first sealing groove 316 and the second sealing groove 322 to fit perfectly with the first sealing plug 315 and the second sealing plug 321, so that there is a layer between the first sealing groove 316, the second sealing groove 322 and the first sealing plug 315 and the second sealing plug 321, thereby improving the sealing performance of the first sealing groove 316, the second sealing groove 322 and the first sealing plug 315 and the second sealing plug 321, and avoiding air leakage between the first sealing groove 316, the second sealing groove 322 and the first sealing plug 315 and the second sealing plug 321.

[0070] like Figure 7、 Figure 10 and Figure 14 As shown, in the specific setting, a second fixing rod 404 is fixedly installed inside the third connecting groove 402 and at one end close to the placement box 301, and the upper end of the baffle 403 is movably installed on the outside of the rod body of the second fixing rod 404; an annular sealing block 406 is fixedly installed on the side of the baffle 403 close to the placement box 301, and an annular sealing groove 405 is provided inside the third connecting groove 402 and on the side away from the water pump 5. The annular sealing groove 405 and the transport pipe 331 are parallel to each other, and the annular sealing block 406 is snap-fitted and installed inside the annular sealing groove 405. A limiting block 407 is fixedly installed on the outside of the rod body of the second fixing rod 404, and the limiting block 407 is snap-fitted and installed inside the limiting groove 408. The limiting groove 408 is provided at the inner upper end of the baffle 403.

[0071] When compressed air enters the third connecting groove 402 through one end of the transport tube 331, the compressed air pushes the baffle 403, causing it to rotate about the second fixing rod 404, thereby opening the space between the transport tube 331 and the third connecting groove 402, allowing the compressed air to flow through the space between the transport tube 331 and the third connecting groove 402.

[0072] When the compression mechanism 3 stops working or the compressed air has not yet been transported through the second connecting groove 330, the pressure inside the gas storage tank 1 is greater than that outside. As a result, the compressed air inside the gas storage tank 1 pushes the baffle 403, causing the baffle 403 to fit more tightly against the surface of the third connecting groove 402. At the same time, the annular sealing block 406 is more stably mounted inside the annular sealing groove 405, preventing the compressed air inside the gas storage tank 1 from flowing back through the baffle 403, the annular sealing block 406 and the annular sealing groove 405.

[0073] Through the cooperation between the limiting block 407 and the limiting groove 408, the baffle 403 drives the annular sealing block 406 to always be parallel to the annular sealing groove 405 and the transport pipe 331, thereby avoiding the deviation of the baffle 403 during the rotation process, which would cause the baffle 403, the annular sealing block 406, the annular sealing groove 405 and the transport pipe 331 to be unable to seal, thereby improving the overall sealing effect and better blocking the compressed air.

[0074] like Figure 8 As shown, in a specific configuration, the water pump 5 and the water pumping pipe 6 are connected to each other, and the water pumping pipe 6 is installed through the interior of the gas storage tank 1; a valve is installed inside the exhaust pipe 7.

[0075] The user can use the water pump 5 and the water pipe 6 to extract and discharge the liquid generated by the compressed air in the gas storage tank 1, so as to prevent the liquid from being retained in the gas storage tank 1 for a long time and causing corrosion to the gas storage tank 1, and also reduce the storage amount of compressed gas in the gas storage tank 1;

[0076] The valve can make it easier for the user to use the compressed gas inside the gas tank 1 through the exhaust pipe 7, and it is also easier for the user to discharge the compressed gas in a single time, which is more convenient.

[0077] The working principle of this anti-backflow high-efficiency air compressor:

[0078] During use, when it is necessary to start compressing and transporting air, the motor 313 drives the push rod 312 to rotate, and then the push rod 312 drives the piston 303 to move up and down inside the pressurizing tank 302 through the push plate 311 and the first fixed rod 310;

[0079] Then, as the piston 303 moves downward, negative pressure is generated inside the pressurizing groove 302. The negative pressure pulls the first sealing plug 315 downward, thereby opening the second air inlet 314 and the first sealing groove 316, allowing outside air to enter the pressurizing groove 302 through the first connecting groove 305, the second air inlet 314 and the first sealing groove 316. At the same time, as the first sealing plug 315 is pulled, the first sealing plug 315 pulls and squeezes the first spring 319 through the first connecting frame 317.

[0080] At the same time, when the piston 303 moves downward, negative pressure is generated inside the pressurizing groove 302, and the negative pressure pulls the second sealing plug 321 downward, so that the second sealing plug 321 is more stably installed inside the second sealing groove 322;

[0081] Then, when the piston 303 moves upward, the air inside the pressurizing groove 302 is compressed as the piston 303 moves upward. At the same time, when the piston 303 moves upward, the first spring 319 drives the first sealing plug 315 to engage and install inside the first sealing groove 316 through the first connecting frame 317 in a short time, thereby preventing air from flowing back.

[0082] At the same time, as the piston 303 moves, the air pushes the second sealing plug 321 upward through the guide groove 320, allowing the second sealing plug 321 to leave the interior of the second sealing groove 322, thereby allowing the air to pass through the second sealing groove 322 into the interior of the second connecting groove 330, and then enter the interior of the gas storage tank 1 through the second connecting groove 330 and the transport pipe 331 for storage.

[0083] When compressed air enters the third connecting groove 402 through one end of the transport tube 331, the compressed air pushes the baffle 403, causing it to rotate about the second fixing rod 404, thereby opening the space between the transport tube 331 and the third connecting groove 402 and allowing the compressed air to flow through the space between the transport tube 331 and the third connecting groove 402.

[0084] When the compression mechanism 3 stops working, or the compressed air has not yet been transported through the second connecting groove 330, the pressure inside the gas storage tank 1 will be greater than that outside. As the compressed air inside the gas storage tank 1 pushes the baffle 403, the baffle 403 will fit more tightly against the surface of the third connecting groove 402. At the same time, the annular sealing block 406 will be more stably engaged and installed inside the annular sealing groove 405, so that the compressed air inside the gas storage tank 1 cannot flow back through the baffle 403, the annular sealing block 406 and the annular sealing groove 405.

[0085] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A high-efficiency air compressor with backflow prevention, comprising an air storage tank (1), characterized in that: A pressure gauge (2) is installed on one side of the gas storage tank (1); A compression mechanism (3) is installed at the upper end of the gas storage tank (1), and the compression mechanism (3) is used to compress external air and transport it to the interior of the gas storage tank (1). The compression mechanism (3) includes a placement box (301), and the placement box (301) is fixedly installed on the upper surface of the gas storage tank (1) and close to one end of the pressure gauge (2). A pressurizing groove (302) is provided at the lower end of the placement box (301), and a piston (303) is movably installed inside the pressurizing groove (302). First connecting grooves (305) are respectively provided on both sides of the upper end of the placement box (301). Inlet pipes (306) are fixedly installed and penetrated on both sides of the upper end of the placement box (301), and the air intake pipes (306) are respectively connected to the first connecting grooves (305). A plurality of second air inlet holes (314) are provided between the first connecting groove (305) and the pressurizing groove (302), and first sealing plugs (315) are movably installed at the lower ends of the second air inlet holes (314). A second connecting groove (330) is provided in the middle of the upper end of the placement box (301), and a second sealing groove (322) is provided between the second connecting groove (330) and the pressurizing groove (302). A second sealing plug (321) is fitted inside the second sealing groove (322), and a transport pipe (331) is fixedly installed through the upper end of the second connecting groove (330), and one end of the transport pipe (331) is installed through the upper end of the gas storage tank (1). An auxiliary mechanism (4) is installed on the outside of the tube body of the transport tube (331), and the auxiliary mechanism (4) is used to cooperate with the second sealing plug (321) to seal the gas inside the gas storage tank (1). The auxiliary mechanism (4) includes a fixed block (401), and the fixed block (401) is fixedly installed on the outside of the tube body of the transport tube (331). A third connecting groove (402) is provided inside the fixed block (401), and the third connecting groove (402) and the transport tube (331) are connected to each other. A baffle (403) is movably installed inside the third connecting groove (402) and on a side close to the placement box (301); A water pump (5) for discharging liquid retained in the gas storage tank (1) is installed on the upper surface of the gas storage tank (1) at one end away from the compression mechanism (3); An exhaust pipe (7) is fixedly installed through one end of the gas storage tank (1) away from the pressure gauge (2).

2. The anti-backflow high-efficiency air compressor according to claim 1, characterized in that: A plurality of sealing rings (304) are respectively installed on the outer upper end of the piston (303), and the sealing rings (304) are respectively fitted with the inner surface of the pressure groove (302); A push rod (312) for controlling the piston (303) to move up and down is movably installed at the lower end of the inner portion of the pressurizing groove (302), and the push rod (312) is movably connected to the piston (303).

3. The anti-backflow high-efficiency air compressor according to claim 2, characterized in that: The rear end of the push rod (312) movably passes through the interior of the pressurizing tank (302) and is connected to the output end of the motor (313), and the motor (313) is installed at the rear side of the placement box (301); The push rod (312) is located outside the middle rod body and is movably installed with a push plate (311); the lower end of the piston (303) is fixedly installed with a first fixed rod (310); the upper end of the push plate (311) is movably installed outside the rod body of the first fixed rod (310).

4. The anti-backflow high-efficiency air compressor according to claim 1, characterized in that: The upper ends of the air inlet pipes (306) are respectively threadedly mounted with sealing covers (307), and a plurality of filter layers (309) are respectively mounted inside the sealing covers (307). A plurality of first air inlet holes (308) are penetrated through a side of the sealing covers (307) away from the air inlet pipes (306), and the first air inlet holes (308) and the filter layers (309) are parallel to each other.

5. The anti-backflow high-efficiency air compressor according to claim 1, characterized in that: The lower ends of the second air inlet holes (314) are respectively provided with first sealing grooves (316), and the first sealing plugs (315) are respectively fitted inside the first sealing grooves (316); The upper ends of the first sealing plugs (315) are fixedly mounted with first connecting frames (317), and the upper ends of the first connecting frames (317) are movably mounted inside first movable grooves (318). The first movable grooves (318) are respectively arranged inside the placement box (301), and the lower ends of the first movable grooves (318) and the first sealing grooves (316) are connected to each other. The first springs (319) are respectively sleeved and mounted on the outer sides of the rods of the first connecting frames (317) located inside the first movable grooves (318).

6. The anti-backflow high-efficiency air compressor according to claim 1, characterized in that: A guide groove (320) is provided at the inner upper end of the pressurizing groove (302), and the guide groove (320) and the second sealing groove (322) are connected to each other; The lower surface of the second connecting groove (330) is provided with placement grooves (326) at both ends, and the placement groove (326) and the second sealing groove (322) are connected to each other. A triangular positioning block (325) is mounted inside the placement groove (326), and the triangular positioning block (325) is fixedly connected to the second sealing plug (321); The lower end of the placement groove (326) is respectively provided with a second movable groove (327), and the interior of the second movable groove (327) is respectively movably penetrated by a second connecting frame (328), the upper end of the second connecting frame (328) is respectively fixedly connected to the triangular positioning block (325), and the second connecting frame (328) is respectively sleeved and installed on the outer side of the rod body inside the second movable groove (327).

7. The anti-backflow high-efficiency air compressor according to claim 1, characterized in that: The outer sides of the first sealing plug (315) and the second sealing plug (321) are respectively fixedly mounted with protrusions (324), and the protrusions (324) are respectively engaged and mounted inside the concave grooves (323), and the concave grooves (323) are respectively arranged inside the first sealing groove (316) and the second sealing groove (322); One end of the transport pipe (331) passes through the upper end of the placement box (301) and is connected to the second connecting groove (330).

8. The anti-backflow high-efficiency air compressor according to claim 1, characterized in that: A second fixing rod (404) is fixedly installed inside the third connecting groove (402) and at one end close to the placement box (301), and the upper end of the baffle (403) is movably installed through the outside of the rod body of the second fixing rod (404); An annular sealing block (406) is fixedly mounted on a side of the baffle (403) close to the placement box (301), and an annular sealing groove (405) is provided inside the third connecting groove (402) on a side away from the water pump (5). The annular sealing groove (405) and the transport pipe (331) are parallel to each other, and the annular sealing block (406) is mounted in engagement with the inside of the annular sealing groove (405).

9. The anti-backflow high-efficiency air compressor according to claim 8, characterized in that: A limiting block (407) is fixedly mounted on the outside of the rod body of the second fixing rod (404), and the limiting block (407) is snap-fitted and mounted inside a limiting groove (408). The limiting groove (408) is provided at the inner upper end of the baffle (403).

10. The anti-backflow high-efficiency air compressor according to claim 1, characterized in that: The water pump (5) and the water pumping pipe (6) are connected to each other, and the water pumping pipe (6) is installed through the interior of the gas storage tank (1); A valve is installed inside the exhaust pipe (7).

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