Vehicle-mounted inflator pump

Abstract

The utility model relates to a vehicle-mounted inflator pump and belongs to the technical field of inflator pumps, the vehicle-mounted inflator pump comprises an inner container, a shell and an air pump body, the air pump body is mounted in the inner container, a silencing groove is formed in the inner container, a mounting cavity is formed in the bottom of the shell, the inner container is mounted in the mounting cavity, and the silencing groove is formed in the inner container. A silencing cavity is formed between the inner container and the cavity wall of the mounting cavity in a spaced mode, an air outlet pipe is arranged on the air pump body, and the air outlet pipe penetrates through the inner container and the shell to be exposed to the outside. The vehicle-mounted inflator pump has the effect of reducing noise during operation of the vehicle-mounted inflator pump.

Description

Technical Field

[0001] The present application relates to the technical field of air pumps, and in particular to a vehicle-mounted air pump. Background Art

[0002] The car air pump is also a small inflator, which is used to inflate the car tires in an emergency. At the same time, different types of inflator nozzles can be replaced on the air pump to inflate car tires, balls, inflatable mattresses, rubber boats, etc.

[0003] The inflation process of the vehicle-mounted air pump is mainly through the operation of the internal small air pump and motor, so the vehicle-mounted air pump generates a lot of noise when it is in working state. Utility Model Content

[0004] In order to reduce the noise during the operation of the vehicle-mounted air pump, the present application provides a vehicle-mounted air pump, which adopts the following technical solution:

[0005] A vehicle-mounted air pump comprises an inner liner, an outer shell and an air pump body, wherein the air pump body is installed inside the inner liner, a silencer groove is provided inside the inner liner, an installation cavity is provided at the bottom of the outer shell, the inner liner is installed in the installation cavity, a silencer cavity is provided between the inner liner and the cavity wall of the installation cavity, an air outlet pipe is provided on the air pump body, and the air outlet pipe passes through the inner liner and the outer shell and is exposed to the outside.

[0006] In order to reduce the transmission of noise generated by the air pump body, sound insulation cotton is arranged on the cavity wall of the installation cavity.

[0007] In order to enable the air pump to be used even when there is no power supply outdoors, a lithium battery is provided inside the inner liner to provide power for the air pump body.

[0008] In order to dissipate the heat generated by the lithium battery, a heat dissipation hole is opened on a side of the inner container close to the lithium battery.

[0009] The shell is provided with an air flow hole which is communicated with the heat dissipation hole.

[0010] In order to store the multiple air nozzles matched with the air pump, a drawer for storing the air nozzles is slidably installed on the shell.

[0011] In order to reduce the space occupied by the drawer on the air pump, a sliding chamber for inserting the drawer is provided on the inner container.

[0012] In order to improve the convenience and storage capacity of the air pump when inflating, a pipe winding disc is provided on the outer wall of the shell, and a ventilation hose connected to the air outlet pipe is wound on the pipe winding disc.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] 1. The noise generated by the operation of the air pump body first enters the silencer groove, and the sound waves are lost to a certain extent when transmitted in the silencer groove. Then the sound waves are transmitted to the silencer cavity, and the sound waves will also be lost to a certain extent during the transmission process in the silencer cavity. Finally, the sound waves that have been lost in two rounds will be absorbed by the sound insulation cotton again, so that the sound waves that can be transmitted from the shell to the outside will be lost to a greater extent, thereby reducing the noise;

[0015] 2. In order to enable the air pump to be used in an emergency situation where there is no power supply outdoors, a lithium battery is installed in the inner tank to power the air pump body. At the same time, heat dissipation holes are opened on the inner tank so that the heat generated by the lithium battery can be discharged from the inner tank;

[0016] 3. Since the air pump can inflate tires, rubber kayaks, outdoor inflatable mattresses, etc. by replacing different types of air nozzles, a drawer is provided so that different types of air nozzles and other accessories can be stored in the drawer, which is more convenient to use;

[0017] 4. When inflating tires or other products, the ventilation hose can be used to extend the distance between the air pump and the product. At the same time, the ventilation hose can be wound on the hose reel for storage when not in use, making it more convenient to inflate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the air pump in the embodiment of the present application.

[0019] Figure 2 It is a schematic diagram of the explosion of the inner container in the embodiment of the present application.

[0020] Figure 3 It is a schematic diagram of the internal structure of the inner tank in an embodiment of the present application.

[0021] Figure 4 It is an exploded schematic diagram of the housing and the base plate in the embodiment of the present application.

[0022] Explanation of the reference numerals: 1. Inner liner; 11. Silence groove; 12. Accommodating cavity; 13. Cover plate; 14. Lithium battery; 15. Heat dissipation hole; 16. Limiting groove; 17. Partition plate; 18. Sliding chamber; 2. Outer shell; 21. Installation cavity; 22. Bottom plate; 23. Silence cavity; 24. Abutment plate; 25. Sound insulation cotton; 26. Air flow hole; 27. Operation button; 28. Display screen; 29. ​​Drawer; 3. Air pump body; 31. Exhaust pipe; 4. Pipe winding coil; 41. Ventilation hose. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-4This application is described in further detail.

[0024] The present application embodiment discloses a vehicle-mounted air pump. Figure 1 and Figure 2 The vehicle-mounted air pump comprises an inner liner 1, an outer shell 2 and an air pump body 3. The air pump body 3 is installed inside the inner liner 1, and a silencer groove 11 is provided inside the inner liner 1. The inner liner 1 is installed inside the outer shell 2. A part of the noise generated by the air pump body 3 during operation will enter the silencer groove 11 and be consumed by the silencer groove 11, thereby reducing the transmission of the noise.

[0025] Reference Figure 1 and Figure 2 A receiving chamber 12 is provided on one side of the inner liner 1, and the air pump body 3 is located in the receiving chamber 12, and the air pump body 3 is installed on the bottom of the receiving chamber 12 by bolts; a cover plate 13 is provided at the opening of the receiving chamber 12, and the cover plate 13 is installed on the inner liner 1 by screws. An air outlet pipe 31 is provided on the air pump body 3, and the air outlet pipe 31 passes through the inner liner 1 and is located outside the inner liner 1.

[0026] Reference Figure 2 and Figure 3 , silencer grooves 11 are provided on the two adjacent side walls of the accommodating cavity 12 close to the air pump body 3. The noise sound waves generated when the air pump body 3 is in operation will be conducted to and transmitted in the silencer grooves 11, thereby consuming the noise sound waves. Among them, on the two cavity walls where the silencer grooves 11 are provided, the silencer groove 11 on one cavity wall is a vertical groove; and the silencer groove 11 on the other cavity wall is a horizontal groove. This arrangement allows the sound waves to be conducted to the silencer grooves 11 on the two cavity walls. Under the guidance of the silencer grooves 11, the sound waves on the two cavity walls will move perpendicularly to each other, thereby enabling the sound waves to be consumed in all directions, and it is not easy for the noise on one side to be loud.

[0027] Reference Figure 1 and Figure 2 A lithium battery 14 is also installed inside the accommodating cavity 12. The lithium battery 14 is located on one side of the air pump body 3, and the lithium battery 14 is electrically connected to the air pump body 3. When there is no power supply during outdoor camping, the lithium battery 14 acts as a mobile power source to provide power to the air pump body 3, so that the air pump body 3 can be used normally, and then the outdoor inflatable mattress or other products can be inflated.

[0028] Reference Figure 1 and Figure 2 A heat dissipation hole 15 is provided on the cavity wall of the accommodating cavity 12 near the lithium battery 14, and the heat dissipation hole 15 penetrates the inner liner 1. In this embodiment, it is preferred that a plurality of heat dissipation holes 15 are provided, and the plurality of heat dissipation holes 15 are arranged at intervals on the inner liner 1, so that the heat generated when the lithium battery 14 supplies power to the air pump body 3 can be dissipated from the inner liner 1 through the heat dissipation holes 15.

[0029] Reference Figure 3 and Figure 4 The bottom of the shell 2 is provided with a mounting cavity 21, the inner liner 1 is inserted into the mounting cavity 21, and the cavity opening of the mounting cavity 21 is covered with a bottom plate 22, which is fixed to the shell 2 by bolts. A silencing cavity 23 is separated between the inner liner 1 and the cavity wall of the mounting cavity 21, and the sound wave will be lost in the process of transmission in the silencing cavity 23, and then pass through the shell 2 to be transmitted. The outlet pipe 31 will pass through the top of the shell 2 and be exposed to the outside.

[0030] Reference Figure 3 and Figure 4 In order to reduce the shaking of the inner liner 1 in the installation cavity 21, abutment plates 24 are integrally formed on the two opposite walls of the installation cavity 21, and a limiting groove 16 for the insertion of the abutment plates 24 is provided on the side wall of the inner liner 1. On the one hand, the abutment plates 24 cooperate with the limiting groove 16 to position and install the inner liner 1 in the installation cavity 21; on the other hand, after the abutment plates 24 are inserted into the limiting groove 16, the inner liner 1 is limited, so that the inner liner 1 is not easy to shake in the installation cavity 21.

[0031] Reference Figure 3 and Figure 4 The circumferential side walls of the installation cavity 21 are all adhered with sound insulation cotton 25 by double-sided tape. The noise sound waves will pass through the sound insulation cotton 25 during the process of transmission. In the process of passing through the sound insulation cotton 25, the sound insulation cotton 25 will absorb most of the sound waves, thereby reducing the noise that can be transmitted.

[0032] Combination Figure 1 Reference Figure 2 and Figure 4 A plurality of air flow holes 26 are provided at intervals on the top of the housing 2, and the air flow holes 26 are connected to the muffler cavity 23. The heat generated by the lithium battery 14 is first transferred to the muffler cavity 23 through the heat dissipation holes 15. According to the principle that hot air rises, the hot air will be discharged from the housing 2 through the air flow holes 26, thereby achieving a heat dissipation effect.

[0033] An operating button 27 and a display screen 28 are also provided on the top of the housing 2. The user can control the inflation amount through the operating button 27, and the tire pressure of the car tire will also be displayed on the display screen 28 for feedback.

[0034] Combination Figure 1 Reference Figure 2 and Figure 4A sliding hole is provided on the outer wall of one side of the shell 2, and a partition 17 is integrally formed in the accommodating chamber 12. The partition 17 is located at the bottom of the air pump body 3. A sliding chamber 18 is separated from the partition 17 and the cavity wall at the bottom of the accommodating chamber 12, and the sliding chamber 18 is connected to the sliding hole. A drawer 29 is inserted into the sliding hole, and the drawer 29 is inserted into the sliding chamber 18 through the sliding hole. Different types of air nozzles and other parts can be put into the drawer 29 for collection and storage. A pull column protruding from the sliding block and exposed to the outside is integrally formed on the outer wall of the drawer 29. When the user needs to pull out the drawer 29, he can pinch and pull it with his hands to pull the drawer 29 out.

[0035] A pipe winding disc 4 is fixedly mounted on the outer wall of the housing 2 on the side away from the sliding hole, and a ventilation hose 41 is wound around the pipe winding disc 4. One end of the ventilation hose 41 is connected to the air outlet pipe 31, and the other end is connected to the air outlet nozzle, so that the user can extend the distance between the air pump and the product to be inflated through the ventilation hose 41, so that the air pump is suitable for different scenarios. In addition, when the air pump is not in use, the ventilation hose 41 will be wound around the pipe winding disc 4 for storage, which improves the overall neatness and convenience of the air pump.

[0036] The implementation principle of a vehicle-mounted air pump in the embodiment of the present application is as follows: the noise generated when the air pump body 3 is in operation first enters the silencer groove 11. Since the silencer groove 11 on one cavity wall is a vertical groove, and the silencer groove 11 on the other cavity wall is a horizontal groove; therefore, after the sound waves are transmitted to the silencer grooves 11 on the two cavity walls, the sound waves on the two cavity walls will move perpendicular to each other under the guidance of the silencer grooves 11, thereby allowing the sound waves to be lost in all directions. After that, the lost sound waves are transmitted to the silencer cavity 23, and the sound waves will also suffer certain losses during the transmission process in the silencer cavity 23; finally, the sound waves that have undergone two rounds of loss will be absorbed by the sound insulation cotton 25 again, so that the sound waves that can be transmitted from the shell 2 to the outside will suffer greater losses, thereby reducing noise.

[0037] Different types of air nozzles can be stored in the drawer 29. For different products that need to be inflated, only the corresponding air nozzles need to be taken out from the drawer 29, which is more convenient to use. In addition, when inflating tires or other products, the air hose 41 can be used to extend the distance between the air pump and the product. At the same time, the air hose 41 can be wound around the pipe coil 4 for storage when not in use, so that it is more convenient to inflate.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle-mounted air pump, characterized in that: The invention comprises an inner liner (1), an outer shell (2) and an air pump body (3), wherein the air pump body (3) is installed inside the inner liner (1), a silencer groove (11) is provided inside the inner liner (1), a mounting cavity (21) is provided at the bottom of the outer shell (2), the inner liner (1) is installed in the mounting cavity (21), a silencer cavity (23) is provided between the inner liner (1) and the cavity wall of the mounting cavity (21), and an air outlet pipe (31) is provided on the air pump body (3), and the air outlet pipe (31) passes through the inner liner (1) and the outer shell (2) and is exposed to the outside.

2. The vehicle-mounted air pump according to claim 1, characterized in that: Sound insulation cotton (25) is arranged on the cavity wall of the installation cavity (21).

3. The vehicle-mounted air pump according to claim 2, characterized in that: A lithium battery (14) is also provided inside the inner container (1) for providing power to the air pump body (3).

4. The vehicle-mounted air pump according to claim 3, characterized in that: A heat dissipation hole (15) is provided on a side of the inner container (1) close to the lithium battery (14).

5. The vehicle-mounted air pump according to claim 4, characterized in that: The housing (2) is provided with an air flow hole (26) which is in communication with the heat dissipation hole (15).

6. The vehicle-mounted air pump according to claim 1, characterized in that: A drawer (29) for storing the gas nozzle is slidably mounted on the housing (2).

7. The vehicle-mounted air pump according to claim 6, characterized in that: The inner container (1) is provided with a sliding chamber (18) for inserting the drawer (29).

8. The vehicle-mounted air pump according to claim 1, characterized in that: A pipe winding disc (4) is provided on the outer wall of the outer shell (2), and a ventilation hose (41) connected to the air outlet pipe (31) is wound on the pipe winding disc (4).

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