Lightweight portable automobile tire inflator pump

Abstract

The invention discloses a light-weight portable automobile tire inflator pump, and belongs to the technical field of inflator pumps, the light-weight portable automobile tire inflator pump comprises a shell, a pump body is fixedly installed on the inner side of the shell, an air storage tank is fixedly installed on the outer side of the pump body, a fixed partition plate is fixedly installed on the inner side of a purification box, and a sealing plug is attached to a center hole of the fixed partition plate in a sealed mode; a sealing plug is arranged in the purification box and elastically connected with the purification box, a rotating frame is rotationally installed on the inner side of the purification box, a transmission assembly is connected between the sealing plug and the rotating frame, a sliding frame is connected to the outer side of the rotating frame through an elastic rubber piece, a filtering assembly is arranged on the inner side of the purification box, and a heat exchange pipe is connected between the purification box and the air storage tank. According to the front air inlet filtering structure of the light-weight portable automobile tire inflator pump, sucked air can be fully and effectively filtered, the filtering structure can be automatically unblocked, and meanwhile the situation that the working temperature of the air storage tank is too high is avoided through the heat exchange mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air pumps, in particular to a light and portable automobile tire inflator. BACKGROUND

[0002] The portable automobile tire inflator is a fluid variable volume machine with a storage container. Due to its small size, portability, easy operation and other advantages, it has become one of the essential emergency equipment for vehicle owners and is widely used in tire deflation emergency inflation, daily tire pressure fine tuning and other scenes.

[0003] The prior art (Chinese patent with publication number CN221800038U and publication date October 1, 2024) discloses a portable vehicle-mounted inflator, which includes a closable box body, a bottom plate is arranged in the box body, a pump body is connected to the bottom plate, a connector is arranged on the pump body, a plurality of interconnected channels are arranged in the connector, a gas storage tank is connected to one end of the connector through a pipeline, and an inflation pipe is connected to the side surface of the connector and the gas storage tank. By arranging the bottom plate in the box body and connecting the mounting plate through the bottom plate, the pump body is fixed by the mounting plate, ensuring the fixation of the inflator. The connecting plate between the mounting plates can reduce the shock buffering effect during use, reduce the inflation noise, and facilitate use. At the same time, the connector is arranged on the pump body, and the inflation pipe and the gas storage tank are connected to the connector. Direct inflation can be achieved through the pump body and the inflation pipe, and inflation can be achieved through the pre-inflated gas storage tank connected to the inflation pipe in the case of small inflation pressure, which greatly reduces the inflation noise and facilitates use. The prior art (Chinese patent with publication number CN208669557U and publication date March 29, 2019) discloses a medical inflator, which relates to the technical field of inflators. Since there may be small particles of dust in the compressed air in the existing equipment, it may have adverse effects on the gas-using equipment. The present scheme includes a shell, a water tank, a compression cylinder and a gas storage tank are installed in the shell. A first air pipe is connected between the water tank and the compression cylinder, and a first check valve is installed on the first air pipe. A second air pipe is connected between the compression cylinder and the gas storage tank, and a second check valve is installed on the second air pipe. An air inlet pipe is fixed on the upper side of the water tank, and the end of the air inlet pipe connected to the water tank is located below the end of the first air pipe connected to the water tank. The gas storage tank is connected to an air outlet pipe, and an air outlet valve is installed on the air outlet pipe. The compressed air is first washed by the water tank, greatly reducing the dust in the compressed air, thereby reducing the probability of adverse effects on the gas-using equipment.

[0004] The existing automobile tire inflator directly connects the air inlet pipeline and the tank body during use, so that the moisture, dust, oil particles and other impurities in the air enter the tank body together, which can easily cause corrosion and damage to the inside of the tank body, and further cause air leakage and unstable air pressure, thus having certain use defects. SUMMARY

[0005] The present application aims to provide a light portable automobile tire inflator pump to solve the problem that the air inlet pipeline and the tank are directly connected in the automobile tire inflator pump on the market, so that the moisture, dust, oil stains and other impurities in the air enter the tank together, thereby easily causing corrosion and damage to the inside of the tank, and further causing air leakage and unstable air pressure.

[0006] To achieve the above object, the present application provides the following technical scheme: a light portable automobile tire inflator pump, comprising a shell, a pump body fixedly installed on the inner side of the shell, a gas storage tank fixedly installed on the outer side of the pump body, and a gas cylinder fixedly installed on the outer side of the pump body, a gas conveying assembly arranged on the inner side of the gas cylinder, an end cover fixedly and sealingly connected between the gas cylinder and the gas storage tank, the interiors of the end cover, the gas storage tank and the gas cylinder being communicated through a pipeline, a one-way valve arranged in the pipeline between the end cover and the gas storage tank, a purification box connected to the outer side of the end cover through an air inlet pipe, the purification box being fixedly installed on the outer side of the shell, an inflator pipe fixedly connected to the outer side of the gas storage tank, a fixed partition plate fixedly installed on the inner side of the purification box, a sealing plug sealingly fitted in the central hole of the fixed partition plate, the sealing plug being elastically connected to the purification box, a rotating frame rotatably installed on the inner side of the purification box, a transmission assembly connected between the sealing plug and the rotating frame, the rotating frame being driven to rotate by the transmission assembly during movement of the sealing plug, a sliding frame connected to the outer side of the rotating frame through an elastic rubber element, a filter assembly arranged on the inner side of the purification box, and a heat exchange pipe connected between the purification box and the gas storage tank.

[0007] Preferably, the sealing plug is in a circular truncated cone structure, a spring is fixedly connected between the sealing plug and the inner wall of the purification box, and the sealing plug is elastically moved and adjusted under the suction force of the air inlet pipe.

[0008] Preferably, the transmission assembly comprises a guide column fixedly installed on the sealing plug, the guide column slidingly penetrates the middle position of the rotating frame, and the sealing plug, the rotating frame and the guide column are coaxially arranged.

[0009] Preferably, a spiral guide groove is formed in the outer side of the guide column, a ball is embeddedly installed on the inner wall of the middle penetrating hole of the rotating frame, the ball and the guide groove are slidingly connected, and the rotating frame is driven to synchronously rotate by the ball and the guide groove during movement of the guide column.

[0010] Preferably, the sliding frame is in a circular ring shape, the sliding frame and the purification box are slidingly connected, the elastic rubber element is twisted in cooperation with the sliding frame during rotation of the rotating frame, and the sliding frame is slid on the inner side of the purification box during twisting of the elastic rubber element.

[0011] Preferably, the filtration assembly includes a filter element fixedly installed inside the purification box, and a moisture-absorbing cotton block is attached to the outer side of the filter element, and a pre-filter is attached to the outer side of the moisture-absorbing cotton block, while the pre-filter is slidably installed inside the purification box.

[0012] Preferably, a pull rod is fixedly connected between the primary filter and the sliding frame, and the pull rod slides through the filter element and the moisture-absorbing cotton block, and when the sliding frame slides towards the rotating frame, the primary filter is pulled synchronously by the pull rod.

[0013] Preferably, a protective frame is fixedly installed at the port of the purification box, and a buffer block is fixedly installed on the inner side of the protective frame. A scraper is elastically rotatably connected to the outer side of the primary filter, and a pull rope is wound around the outer side of the rotation axis of the scraper. The other end of the pull rope is fixedly connected to the inner wall of the purification box. At the same time, the pull rope pulls the scraper to rotate during the sliding process of the primary filter, and the primary filter impacts the buffer block during the resetting process.

[0014] Preferably, the portion of the heat exchange tube located outside the gas storage tank and the portion embedded inside the purification box are spirally distributed, and both ends of the heat exchange tube are connected to the space between the purification box and the elastic rubber component. Furthermore, a one-way valve is provided on the heat exchange tube, and the elastic rubber component drives the liquid inside the heat exchange tube to flow and exchange heat during deformation.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the front air intake filter structure of the lightweight portable car tire inflator can filter the intake air fully and effectively, and can automatically clear blockages in the filter structure. At the same time, the heat exchange mechanism avoids the air tank from operating too hot. The specific details are as follows. 1. It is equipped with a filter element, moisture-absorbing cotton block, and pre-filter. The pre-filter can filter particulate impurities in the air, while the moisture-absorbing cotton block and pre-filter can filter and absorb moisture and other impurities in the air, thereby improving the cleanliness of the stored air.

[0016] 2. Equipped with a sealing plug, rotating frame, and sliding frame, the sealing plug elastically slides as air is drawn in, pulling the guide column to move synchronously. This causes the ball bearings on the rotating frame to roll along the guide groove, driving the rotating frame to reciprocate. During rotation, the rotating frame twists the elastic components, pulling the sliding frame to slide inside the purification box. Simultaneously, the purification box pulls the pre-filter via a pull rod, causing the pre-filter to work with the filter element to compress the absorbent cotton block, aiding in the drainage of the absorbent cotton block. As the pre-filter moves, the pull rope pulls the scraper to rotate, cleaning the filtered material on the outside of the pre-filter. Combined with the pre-filter's resetting inertia, this achieves efficient unclogging. During the sliding frame's resetting process, the space between the fixed partition and the filter element decreases, generating airflow towards the filter element for automatic backflushing, further improving the anti-clogging effect.

[0017] 3. It is equipped with elastic rubber parts and heat exchange tubes. As the elastic rubber parts reciprocate, the space between the purification box and the elastic rubber parts reciprocates, thereby realizing the flow of heat exchange medium in the heat exchange tubes, which cools the gas storage tank while accelerating the evaporation and discharge of liquid in the moisture-absorbing cotton block. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the housing and pump body mounting structure of the present invention; Figure 3 This is a schematic diagram of the connection structure between the pump body and the gas storage tank of the present invention; Figure 4 This is a schematic diagram of the purification box installation structure of the present invention; Figure 5 This is a schematic cross-sectional view of the purification box portion of the present invention; Figure 6 This is a schematic diagram of the primary filter installation structure of the present invention; Figure 7 This is a schematic diagram of the installation structure of the filter element and the moisture-absorbing cotton block of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle; Figure 9 This is a schematic diagram of the exploded structure of the purification box of the present invention.

[0019] In the diagram: 1. Shell; 2. Pump body; 3. Air tank; 4. Cylinder; 5. End cap; 6. Inlet pipe; 7. Inflation pipe; 8. Purification box; 9. Fixed partition; 10. Sealing plug; 11. Spring; 12. Rotating frame; 13. Guide column; 14. Ball bearing; 15. Guide groove; 16. Sliding frame; 17. Elastic rubber part; 18. Filter element; 19. Moisture-absorbing cotton block; 20. Primary filter; 21. Pull rod; 22. Protective frame; 23. Buffer block; 24. Scraper; 25. Pull rope; 26. Heat exchange tube. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Existing automotive tire inflators are inconvenient for pre-filtering the intake air, allowing impurities to enter the inner side of the tank, easily causing corrosion and leaks. To solve this technical problem, this example discloses the following technical content. Please refer to [link / reference].Figures 1-8 As shown; A lightweight portable car tire inflator includes a housing 1, a pump body 2 fixedly mounted inside the housing 1, an air tank 3 fixedly mounted outside the pump body 2, and a cylinder 4 fixedly mounted outside the pump body 2. An air delivery assembly is provided inside the cylinder 4, and an end cap 5 is sealed and fixedly connected between the cylinder 4 and the air tank 3. The end cap 5 and the interiors of the air tank 3 and cylinder 4 are connected by a pipeline, and a one-way valve is provided in the pipeline between the end cap 5 and the air tank 3. A purification box 8 is also connected to the outside of the end cap 5 via an air inlet pipe 6, and the purification box 8 is fixedly mounted on the housing 1. On the outside of the gas storage tank 3, an inflation pipe 7 is fixedly connected to the outside of the gas storage tank 3. A fixed partition 9 is fixedly installed on the inside of the purification box 8, and a sealing plug 10 is sealed and fitted at the center hole of the fixed partition 9. The sealing plug 10 and the purification box 8 are elastically connected. A rotating frame 12 is rotatably installed on the inside of the purification box 8, and a transmission component is connected between the sealing plug 10 and the rotating frame 12. During the movement of the sealing plug 10, the rotating frame 12 is driven to rotate through the transmission component. A sliding frame 16 is connected to the outside of the rotating frame 12 through an elastic rubber part 17. A filter component is provided on the inside of the purification box 8.

[0022] The sealing plug 10 is truncated cone-shaped, and a spring 11 is fixedly connected between the sealing plug 10 and the inner wall of the purification box 8. The sealing plug 10 moves elastically under the suction of the air inlet pipe 6. The transmission assembly includes a guide post 13 fixedly mounted on the sealing plug 10, and the guide post 13 slides through the middle position of the rotating frame 12. The sealing plug 10, the rotating frame 12, and the guide post 13 are all coaxially arranged. A spiral guide groove 15 is opened on the outer side of the guide post 13. A ball bearing 14 is embedded in the inner wall of the middle through hole of the rotating frame 12, and the ball bearing 14 is slidably connected to the guide groove 15. During the movement of the guide post 13, the rotating frame 12 is driven to rotate synchronously through the ball bearing 14 and the guide groove 15. The sliding frame 16 is annular and is slidably connected to the purification box 8. During the rotation of the rotating frame 12, the sliding frame 16 and the sliding frame 16 twist the elastic rubber part 17. During the twisting of the elastic rubber part 17, the sliding frame 16 is pulled within the purification box 8. The side-sliding filter assembly includes a filter element 18 fixedly installed inside the purification box 8, with a moisture-absorbing cotton block 19 attached to the outside of the filter element 18, and a pre-filter 20 attached to the outside of the moisture-absorbing cotton block 19. The pre-filter 20 is slidably installed inside the purification box 8. A pull rod 21 is fixedly connected between the pre-filter 20 and the sliding frame 16, and the pull rod 21 slides through the filter element 18 and the moisture-absorbing cotton block 19. When the sliding frame 16 slides towards the rotating frame 12, the pull rod 21 pulls the pre-filter... The filter 20 slides synchronously. A protective frame 22 is fixedly installed at the port of the purification box 8, and a buffer block 23 is fixedly installed on the inner side of the protective frame 22. A scraper 24 is elastically rotatably connected to the outer side of the primary filter 20, and a pull rope 25 is wound around the outer side of the rotation axis of the scraper 24. The other end of the pull rope 25 is fixedly connected to the inner wall of the purification box 8. At the same time, during the sliding of the primary filter 20, the pull rope 25 pulls the scraper 24 to rotate. During the reset process, the primary filter 20 hits the buffer block 23.

[0023] The pump body 2 is activated, causing it to drive the air delivery component inside the cylinder 4. This allows the cylinder 4 to draw in air through the intake pipe 6 connected to the end cover 5, and then transport the air to the storage tank 3 for compression and storage via the pipes on the end cover 5. Subsequently, precise inflation is achieved by controlling the valve on the inflation pipe 7. The air delivery component can be a piston that reciprocates inside the cylinder 4. When air is drawn in through the intake pipe 6, particulate impurities in the air are filtered by the primary filter 20, while the moisture-absorbing cotton block 19 and the primary filter 20 filter and absorb moisture and other impurities in the air, improving the cleanliness of the stored air. As air is drawn in, the sealing plug 10 slides elastically, pulling the guide column 13 to move synchronously. This causes the ball bearings 14 on the rotating frame 12 to roll along the guide groove 15, driving the rotating frame 12 to rotate reciprocally. During rotation, the rotating frame 12 twists. The elastic component 17 brings its two ends closer together, causing it to pull the sliding frame 16 to slide inside the purification box 8. Simultaneously, the purification box 8 pulls the pre-filter 20 to slide synchronously via the pull rod 21. This allows the pre-filter 20, in conjunction with the filter element 18, to squeeze the absorbent cotton block 19, thus facilitating the drainage of liquid from the absorbent cotton block 19. When the pre-filter 20 moves, the pull rope 25 pulls the scraper 24 to rotate, cleaning the filtered material on the outside of the pre-filter 20. When the pre-filter 20 resets, it impacts the buffer block 23 on the protective frame 22, causing the filtered impurities to peel off under inertia, achieving efficient unclogging. During the reset process of the sliding frame 16, the space between the fixed partition 9 and the filter element 18 decreases, generating airflow towards the filter element 18 for automatic backflushing, further improving the anti-clogging effect.

[0024] Example 2: The technical content disclosed in this example is a further improvement based on Example 1. Existing automotive tire inflator pumps are inconvenient for cooling the air tank during compressed air operation and for recovering and utilizing the heat generated during gas compression. To further solve this technical problem, this example discloses the following technical content: Figures 2-3 and Figures 5-7 As shown, a heat exchange tube 26 is connected between the purification box 8 and the gas storage tank 3. The portion of the heat exchange tube 26 located outside the gas storage tank 3 and the portion embedded inside the purification box 8 are spirally distributed. Both ends of the heat exchange tube 26 are connected to the space between the purification box 8 and the elastic rubber part 17. A one-way valve is provided on the heat exchange tube 26. During the deformation of the elastic rubber part 17, the liquid inside the heat exchange tube 26 is driven to flow and exchange heat.

[0025] As the elastic rubber part 17 reciprocates, the space between the purification box 8 and the elastic rubber part 17 changes back and forth, thereby realizing the flow of the heat exchange medium in the heat exchange tube 26, achieving cooling of the gas storage tank 3 while accelerating the evaporation and discharge of the liquid in the moisture-absorbing cotton block 19.

[0026] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A light portable car tire inflator pump, comprising a shell (1), the inner side of the shell (1) is fixedly installed with a pump body (2), and the outer side of the pump body (2) is fixedly installed with a gas tank (3), and the outer side of the pump body (2) is fixedly installed with a cylinder (4), the inner side of the cylinder (4) is provided with a gas conveying assembly, and the cylinder (4) and the gas tank (3) are sealingly and fixedly connected with an end cover (5); characterized in that the interiors of the end cover (5), the gas tank (3) and the cylinder (4) are communicated through pipelines, the pipeline between the end cover (5) and the gas tank (3) is provided with a one-way valve, the outer side of the end cover (5) is further connected with a purification box (8) through an air inlet pipe (6), the purification box (8) is fixedly installed on the outer side of the shell (1), the outer side of the gas tank (3) is fixedly connected with an inflating pipe (7), the inner side of the purification box (8) is fixedly installed with a fixed partition plate (9), the central hole of the fixed partition plate (9) is sealingly attached with a sealing plug (10), the sealing plug (10) and the purification box (8) are elastically connected, the inner side of the purification box (8) is rotatably installed with a rotating frame (12), a transmission assembly is connected between the sealing plug (10) and the rotating frame (12), the rotating frame (12) is driven to rotate by the transmission assembly during the movement of the sealing plug (10), the outer side of the rotating frame (12) is connected with a sliding frame (16) through an elastic rubber element (17), the inner side of the purification box (8) is provided with a filtering assembly, and the purification box (8) and the gas tank (3) are connected with a heat exchange pipe (26).

2. A light weight portable car tire inflator pump as claimed in claim 1 wherein: The sealing plug (10) is provided in a circular truncated cone structure, spring (11) is fixedly connected between the sealing plug (10) and the inner wall of the purification box (8), and the sealing plug (10) is elastically moved and adjusted under the suction force of the air inlet pipe (6).

3. A light weight portable car tire inflator pump as claimed in claim 2 wherein: The transmission assembly comprises a guide column (13) fixedly installed on the sealing plug (10), the guide column (13) slidingly penetrates the middle position of the rotating frame (12), and the sealing plug (10), the rotating frame (12) and the guide column (13) are coaxially arranged.

4. A light weight portable car tire inflator as claimed in claim 3 wherein: The outer side of the guide column (13) is provided with a spiral guide groove (15), the inner wall of the middle penetrating hole of the rotating frame (12) is embeddedly installed with a ball (14), and the ball (14) and the guide groove (15) are slidingly connected, and the rotating frame (12) is driven to rotate synchronously by the ball (14) and the guide groove (15) during the movement of the guide column (13).

5. A light weight portable car tire inflator as claimed in claim 1 wherein: The sliding frame (16) is in a circular ring shape, the sliding frame (16) and the purification box (8) are slidingly connected, and the elastic rubber element (17) is twisted by cooperating with the sliding frame (16) during the rotation of the rotating frame (12), and the elastic rubber element (17) is pulled to slide in the inner side of the purification box (8) during the twisting process.

6. A light weight portable car tire inflator as claimed in claim 1 wherein: The filtering assembly comprises a filter core (18) fixedly installed on the inner side of the purification box (8), the outer side of the filter core (18) is attached with a moisture absorbing cotton block (19), the outer side of the moisture absorbing cotton block (19) is attached with a primary efficiency filter screen (20), and the primary efficiency filter screen (20) is slidingly installed on the inner side of the purification box (8).

7. A light weight portable car tire inflator pump as claimed in claim 6 wherein: The pull rod (21) is fixedly connected between the primary filter screen (20) and the sliding frame (16), the pull rod (21) slides through the filter core (18) and the moisture absorbing cotton block (19), and the sliding frame (16) slides towards the rotating frame (12) and pulls the primary filter screen (20) to slide synchronously through the pull rod (21).

8. A light weight portable car tire inflator as claimed in claim 7 wherein: The protective frame (22) is fixedly installed at the port of the purification box (8), the buffer block (23) is fixedly installed at the inner side of the protective frame (22), the scraping piece (24) is elastically rotationally connected to the outer side of the primary filter screen (20), the rotating shaft outer side of the scraping piece (24) is provided with the pull rope (25), the other end of the pull rope (25) is fixedly connected to the inner wall of the purification box (8), the pull rope (25) pulls the scraping piece (24) to rotate during the sliding process of the primary filter screen (20), and the primary filter screen (20) impacts the buffer block (23) during the resetting process.

9. A light weight portable car tire inflator pump as claimed in claim 1 wherein: The heat exchange pipe (26) is spirally distributed on the part outside the gas storage tank (3) and the part embeddedly installed on the inner side of the purification box (8), the two ends of the heat exchange pipe (26) are communicated with the space between the purification box (8) and the elastic rubber element (17), one-way valves are arranged on the heat exchange pipe (26), and the elastic rubber element (17) drives the liquid in the heat exchange pipe (26) to flow and exchange heat during the deformation process.

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