Electric vehicle mounted air pump

Abstract

The present invention discloses an electric vehicle-mounted air pump, which belongs to the technical field of air pumps, and includes a storage seat, a top support frame that can move up and down is arranged in the storage seat, a main installation body is arranged on the top of the top support frame, and the top support frame is respectively connected to the storage seat and the main installation body through a rotary connector, and a rocker support assembly for lifting and supporting the top support frame is arranged inside the storage seat. The present invention drives a crankshaft member through a driving motor to drive multiple piston disks to perform telescopic work, so as to realize the centralized delivery of gas to a centralized output chamber and act on the tire, which can significantly improve the inflation effect, and through the deflation assembly arranged on the top of the centralized output chamber, the threshold value is set according to the rated pressure of different vehicle tires, and the excess gas is automatically leaked after being filled, so as to achieve the effect of protecting electrical components, and through the action of the jack support rod and the screw rocker shaft inside the storage seat, the top support frame and the support cover body are used to act as a vehicle jack.

Description

Technical Field

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

[0002] The vehicle-mounted air pump is a device carried with the vehicle for inflating the vehicle tire. The existing vehicle-mounted air pump mainly supplies air in the form of single-cylinder or double-cylinder air supply, and its inflation time often takes more than ten minutes. Long-term operation will cause the motor to heat up. Therefore, during use, the air pump needs to be rested intermittently to avoid the motor burning out, which makes the inflation efficiency even lower. The existing motor is arranged inside the cover for better preservation, and there is a situation of slow heat dissipation; furthermore, the current vehicle-mounted air pump cannot automatically stop supplying air to the tire when the tire is inflated to the rated air pressure, and there is the situation of over-inflation and overload burning of the air pump, which requires the operator to pay attention to the inflation status at all times. Long-term attention will make the operator tired, especially when the vehicle breaks down in the sun; and the existing vehicle-mounted air pump is carried with the vehicle, occupies the space in the vehicle, but has a single function, which makes the use effect of the vehicle-mounted air pump poor. Based on this, an electric vehicle-mounted air pump is now proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the current vehicle-mounted air pump cannot automatically stop supplying air to the tire when the tire is inflated to the rated air pressure, resulting in over-inflation and overload and burning of the air pump, which requires the operator to pay attention to the inflation status at all times. Long-term attention will make the operator tired. A kind of electric vehicle-mounted air pump is proposed to solve the problem that the current vehicle-mounted air pump cannot automatically stop supplying air to the tire when the tire is inflated to the rated air pressure, resulting in over-inflation and overload and burning of the air pump.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An electric vehicle-mounted air pump comprises a storage seat, wherein a top support frame body capable of moving up and down is arranged in the storage seat, a main mounting body is arranged on the top of the top support frame body, the top support frame body is respectively connected to the storage seat and the main mounting body through a rotary connector, and a rocker support assembly for lifting and supporting the top support frame body is arranged inside the storage seat;

[0006] A driving chamber is provided inside the main installation body, a crankshaft is provided in the driving chamber, a driving motor is provided at the bottom of the main installation body, an output end of the driving motor passes through the driving chamber and is fixedly connected to the crankshaft;

[0007] A plurality of air chambers are provided in the main installation body, a piston disc is provided inside the air chamber, and the piston disc is connected to the crankshaft member through a joint control assembly;

[0008] A centralized output cavity is provided on the top of the main mounting body, and a plurality of the air chambers are connected to the centralized output cavity through pneumatic pipes. A deflation component for controlling the air pressure is provided on the top of the centralized output cavity. A storage groove is provided on the top of the main mounting body, and an air connection pipe connected to the tire air nozzle is provided inside the storage groove, and one end of the air connection pipe is connected to the centralized output cavity.

[0009] The outer side wall of the storage seat is threadedly connected with a support cover body.

[0010] Preferably, the rotary connector comprises a semi-annular spiral groove relatively opened on the inner side wall of the storage seat and the top support frame, and the outer side wall of the top support frame and the main installation body are fixedly connected to two relatively arranged limiting sliding columns;

[0011] The limiting sliding column located on the outer side wall of the top support frame is located in the semi-annular spiral groove on the inner side wall of the storage seat, and the limiting sliding column located on the outer side wall of the main installation body is located in the semi-annular spiral groove on the inner side wall of the top support frame.

[0012] Preferably, the rocker support assembly includes staggered jack support rods, the jack support rods are threadedly connected to a lead screw rocker shaft, the side wall of the storage seat is provided with a rectangular opening for the lead screw rocker shaft to move, and the end of the lead screw rocker shaft is rotatably connected to a folding rocker member.

[0013] Preferably, the linkage control assembly comprises a driving column fixedly connected to the piston disc, the end of the driving column penetrates into the driving chamber, and is rotationally connected to the crankshaft member through a linkage rod;

[0014] The piston disc is provided with a one-way air hole, the driving column is provided with a notch for the one-way air hole to vent air, and a one-way valve cover is rotatably provided on the side wall of the piston disc.

[0015] Preferably, the deflation assembly comprises a deflation valve body arranged on the top of the main mounting body, the inner wall of the deflation valve body is connected to a deflation piston via a pressure spring, the deflation piston is connected to a deflation column, and the deflation column is provided with a deflation port.

[0016] Preferably, an adjustable plug is provided in the air vent, and an adjustable threaded column is threadedly connected to the top of the air vent column, and the adjustable threaded column is rotatably connected to the adjustable plug.

[0017] Preferably, a spherical interference seat is arranged at the top of the jack support rod, and an adapter seat matching the spherical interference seat is arranged at the bottom of the top support frame.

[0018] Preferably, the support cover body is composed of a threaded ring, a trapezoidal connecting ring, an upper cover and a top cover, the threaded ring is threadedly connected to the outer side wall of the storage seat, and the upper cover is in conflict with the top support frame.

[0019] Preferably, a plurality of ventilation holes for dissipating heat from the drive motor are evenly arranged on the outer side wall of the top support frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention can store the main installation body when storing by arranging a storage seat, a top support frame and a main installation body, which is convenient for carrying. When in use, the driving motor at the bottom of the main installation body is exposed to ensure that it can quickly dissipate heat. In addition, through the arrangement of the main installation body, through the action of the jack support rod and the screw rocker shaft inside the storage seat, the top support frame and the support cover body can act as a vehicle jack to meet the emergency needs of the vehicle.

[0022] 2. The present invention drives the crankshaft to drive multiple piston discs to extend and retract by driving the motor, so as to centrally transport the gas to the centralized output chamber and act on the tire, which can significantly improve the inflation effect.

[0023] 3. The present invention sets a deflation component on the top of the centralized output chamber to meet the requirement of setting a threshold value according to the rated pressure of different vehicle tires. After being filled, the excess gas is automatically leaked to reduce the inflation pressure, thereby achieving the effect of protecting electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of an electric vehicle-mounted air pump in an expanded state proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the storage state of an electric vehicle-mounted air pump proposed by the present invention;

[0026] Figure 3 A three-dimensional structural diagram of the connection relationship of a crankshaft component in an electric vehicle-mounted air pump proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the main cross-sectional structure of an electric vehicle-mounted air pump proposed by the present invention;

[0028] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 6 This is a schematic diagram of a top cross-sectional structure of a main mounting body in an electric vehicle-mounted air pump proposed by the present invention;

[0030] Figure 7 This is a schematic structural diagram of a deflation component in an electric vehicle-mounted air pump proposed by the present invention;

[0031] Figure 8 This is a schematic diagram of the side structure of a crankshaft component in an electric vehicle-mounted air pump proposed by the present invention.

[0032] In the figure: 1. storage seat; 2. top support frame; 3. main installation body; 4. drive chamber; 5. crankshaft; 6. drive motor; 7. air chamber; 8. piston disc; 9. centralized output chamber; 10. pneumatic pipeline; 11. storage groove; 12. air connecting pipe; 13. support cover body; 14. semi-annular spiral groove; 15. limit sliding column; 16. jack support rod; 17. screw rocker shaft; 18. folding rocker member; 19. drive column; 20. one-way air hole; 21. one-way valve cover; 22. vent valve body; 23. vent piston; 24. vent column; 25. vent port; 26. adjustable threaded column; 27. adjustable plug; 28. conflicting spherical seat; 29. ​​adapter seat; 30. linkage rod. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Example, see Figure 1-8 , an electric vehicle-mounted air pump, comprising a storage seat 1, a top support frame 2 that can move up and down is arranged in the storage seat 1, a main installation body 3 is arranged on the top of the top support frame 2, the top support frame 2 is connected to the storage seat 1 and the main installation body 3 respectively through a rotary connector, further, the rotary connector includes a semi-annular spiral groove 14 relatively opened on the inner side walls of the storage seat 1 and the top support frame 2, and the outer side walls of the top support frame 2 and the main installation body 3 are fixedly connected to two relatively arranged limit sliding columns 15;

[0035] The limiting slide post 15 located on the outer wall of the top support frame 2 is located in the semi-annular spiral groove 14 on the inner wall of the storage seat 1, and the limiting slide post 15 located on the outer wall of the main installation body 3 is located in the semi-annular spiral groove 14 on the inner wall of the top support frame 2.

[0036] Among them, the semi-annular spiral groove 14 is set with one end high and the other end low. When the limiting sliding column 15 rotates inside, when the semi-annular spiral groove 14 rotates from the low position to the high position, the effect of changing the height of the supporting frame 2 and the main mounting body 3 can be achieved.

[0037] A plurality of ventilation holes for dissipating heat from the drive motor 6 are evenly arranged on the outer side wall of the top support frame 2 .

[0038] A further effect of adopting the above method is that, when in use, the main mounting body 3 can be moved out of the top support frame 2, and the top support frame 2 can be moved out of the storage seat 1. After moving out, the vents provided on the top support frame 2 can be opened, thereby facilitating the heat dissipation of the driving motor 6 provided at the bottom of the main mounting body 3.

[0039] A rocker support assembly is arranged inside the storage seat 1 to lift and support the top support frame 2; further, the rocker support assembly includes staggered jack support rods 16, the jack support rods 16 are threadedly connected to the screw rocker shaft 17, and the side wall of the storage seat 1 is provided with a rectangular opening for the screw rocker shaft 17 to move, and the end of the screw rocker shaft 17 is rotatably connected to a folding rocker member 18.

[0040] The connection method between the jack support rod 16 and the screw rocker shaft 17 is prior art and will not be described in detail here.

[0041] A resistance spherical seat 28 is arranged at the top of the jack support rod 16, and a universal ball is arranged inside the resistance spherical seat 28. An adapter seat 29 matched with the resistance spherical seat 28 is arranged at the bottom of the support frame 2. When the support frame 2 is driven to move upward by the jack support rod 16, the support frame 2 will rotate. In order to reduce the friction force, the resistance spherical seat 28 and the adapter seat 29 are arranged to reduce the friction force and ensure the lifting effect.

[0042] A driving chamber 4 is provided inside the main mounting body 3, a crankshaft 5 is provided inside the driving chamber 4, a driving motor 6 is provided at the bottom of the main mounting body 3, the driving motor 6 is a prior art and will not be described in detail here, the output end of the driving motor 6 passes through the driving chamber 4 and is fixedly connected to the crankshaft 5;

[0043] A plurality of air chambers 7 are provided in the main mounting body 3, and a piston disc 8 is provided inside the air chamber 7. The piston disc 8 is connected to the crankshaft 5 through a joint control assembly;

[0044] Furthermore, the joint control assembly includes a driving column 19 fixedly connected to the piston disk 8, the end of the driving column 19 extends into the driving chamber 4, and is rotatably connected to the crankshaft 5 through a linkage rod 30. During the rotation of the crankshaft 5, the linkage rod 30 connected thereto is driven to realize the reciprocating movement of the piston disk 8, thereby transporting the gas in the air chamber 7 to the air pipe 12 through multiple piston disks 8, thereby achieving the effect of inflating the tire.

[0045] A one-way air hole 20 is provided on the piston disc 8, a notch is provided on the driving column 19 for the one-way air hole 20 to vent air, and a one-way valve cover 21 is rotatably provided on the side wall of the piston disc 8;

[0046] The one-way valve cover 21 realizes the effect of one-way conveyance of airflow from the one-way air hole 20 . When air is injected, the one-way valve cover 21 blocks the one-way air hole 20 .

[0047] A centralized output cavity 9 is provided at the top of the main mounting body 3, and a plurality of air chambers 7 are connected to the centralized output cavity 9 through a pneumatic pipe 10. A deflation component for controlling the air pressure is provided at the top of the centralized output cavity 9. Furthermore, the deflation component includes a deflation valve body 22 provided at the top of the main mounting body 3, and an inner wall of the deflation valve body 22 is connected to a deflation piston 23 through a pressure spring, and the deflation piston 23 is connected to a deflation column 24, and the deflation column 24 is provided with a deflation port 25.

[0048] It is worth noting that when the pressure is too high, the deflation piston 23 connected to the pressure spring inside the deflation valve body 22 will move upward under the action of pressure, so that the deflation port 25 moves out from inside and outside the deflation valve body 22, thereby achieving the effect of releasing gas greater than the threshold.

[0049] Furthermore, an adjustable plug 27 is provided in the air vent 25 , and an adjustable threaded column 26 is threadedly connected to the top of the air vent column 24 , and the adjustable threaded column 26 is rotatably connected to the adjustable plug 27 .

[0050] A further advantage of adopting the above method is that, by setting the adjustable threaded column 26, the position of the adjustable plug 27 on the deflation column 24 can be controlled, so that deflation with different air pressure requirements can be achieved under different air pressures, thereby meeting the tire pressure requirements of different models.

[0051] A receiving groove 11 is provided on the top of the main mounting body 3. An air connection pipe 12 connected to the tire valve is provided inside the receiving groove 11. One end of the air connection pipe 12 is connected to the centralized output chamber 9. The setting of the receiving groove 11 can achieve the effect of storing the air connection pipe 12.

[0052] The outer wall of the storage seat 1 is threadedly connected with a support cover body 13. Further, the support cover body 13 is composed of a threaded ring, a trapezoidal connecting ring, an upper cover and a top cover. The threaded ring is threadedly connected to the outer wall of the storage seat 1, and the upper cover is in conflict with the top support frame 2.

[0053] When the present invention is used to inflate a vehicle, the air connection pipe 12 is connected to the tire, and the threshold pressure of the deflation component is reasonably adjusted according to the pressure of the tire. During the adjustment, the position of the adjustable plug 27 on the deflation column 24 is changed by rotating the adjustable threaded column 26, so that deflation with different air pressure requirements can be achieved under different air pressures.

[0054] The drive motor 6 is powered (battery or external vehicle battery power), and the crankshaft 5 connected to the output end of the drive motor 6 will rotate. During the rotation, the drive column 19 connected to it through the linkage rod 30 will drive the piston plate 8 to reciprocate. During the reciprocating movement, the tire is inflated. When the tire pressure reaches the rated pressure, the gas will leak at the deflation component, thereby avoiding the load on the drive motor 6 and protecting the normal use of the electric components.

[0055] When a tire is deflated and needs to be changed with a jack, the storage seat 1 can be placed under the vehicle support point, and the screw rocker shaft 17 can be driven to rotate by the folding rocker member 18, and the top support frame 2 and the support cover body 13 can be lifted up by the jack support rod 16 to act as a jack, thereby meeting the daily needs of the vehicle and facilitating the driver's use.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electric vehicle-mounted air pump, comprising a storage seat (1), characterized in that: A top support frame (2) capable of moving up and down is arranged inside the storage seat (1); a main installation body (3) is arranged on the top of the top support frame (2); the top support frame (2) is connected to the storage seat (1) and the main installation body (3) respectively through a rotating connection piece; and a rocker support assembly for lifting and supporting the top support frame (2) is arranged inside the storage seat (1); A driving chamber (4) is provided inside the main installation body (3), a crankshaft (5) is provided inside the driving chamber (4), a driving motor (6) is provided at the bottom of the main installation body (3), an output end of the driving motor (6) passes through the driving chamber (4) and is fixedly connected to the crankshaft (5); A plurality of air chambers (7) are provided in the main mounting body (3), a piston disc (8) is provided inside the air chamber (7), and the piston disc (8) is connected to the crankshaft (5) through a joint control component; A centralized output cavity (9) is provided at the top of the main mounting body (3), a plurality of the air chambers (7) are connected to the centralized output cavity (9) through a pneumatic pipe (10), a deflation component for controlling the air pressure is provided at the top of the centralized output cavity (9), a receiving groove (11) is provided at the top of the main mounting body (3), an air connection pipe (12) connected to the tire air nozzle is provided inside the receiving groove (11), and one end of the air connection pipe (12) is connected to the centralized output cavity (9); The outer wall of the storage seat (1) is threadedly connected with a support cover (13); The degassing assembly comprises a degassing valve body (22) arranged on the top of the main mounting body (3); the inner wall of the degassing valve body (22) is connected to a degassing piston (23) via a pressure spring; the degassing piston (23) is connected to a degassing column (24); and the degassing column (24) is provided with a degassing port (25); An adjustable plug (27) is arranged in the air leakage port (25), and an adjustable threaded column (26) is threadedly connected to the top of the air leakage column (24), and the adjustable threaded column (26) is rotatably connected to the adjustable plug (27); By setting the deflation component on the top of the centralized output chamber, the threshold can be set according to the rated pressure of the tires of different vehicles. After being filled, the excess gas will be automatically leaked to reduce the inflation pressure, thereby achieving the effect of protecting electrical components.

2. An electric vehicle-mounted air pump according to claim 1, characterized in that: The rotary connection member comprises a semi-annular spiral groove (14) which is relatively formed on the inner side walls of the storage seat (1) and the top support frame (2); and the outer side walls of the top support frame (2) and the main installation body (3) are both fixedly connected with two relatively arranged limiting sliding posts (15); The limiting sliding column (15) located on the outer wall of the top support frame (2) is located in the semi-annular spiral groove (14) on the inner wall of the storage seat (1), and the limiting sliding column (15) located on the outer wall of the main installation body (3) is located in the semi-annular spiral groove (14) on the inner wall of the top support frame (2).

3. The electric vehicle-mounted air pump according to claim 1, characterized in that: The rocker support assembly comprises staggered jack support rods (16), the jack support rods (16) are threadedly connected with a screw rocker shaft (17), the side wall of the storage seat (1) is provided with a rectangular opening for the screw rocker shaft (17) to move, and the end of the screw rocker shaft (17) is rotatably connected with a folding rocker member (18).

4. The electric vehicle-mounted air pump according to claim 1, characterized in that: The linkage control assembly comprises a driving column (19) fixedly connected to the piston plate (8), the end of the driving column (19) penetrates into the driving chamber (4), and is rotationally connected to the crankshaft (5) through a linkage rod (30); The piston disc (8) is provided with a one-way air hole (20), the driving column (19) is provided with a notch for the one-way air hole (20) to vent air, and a one-way valve cover (21) is rotatably provided on the side wall of the piston disc (8).

5. The electric vehicle-mounted air pump according to claim 3, characterized in that: The top of the jack support rod (16) is provided with a contact spherical seat (28), and the bottom of the support frame (2) is provided with an adapter seat (29) adapted to the contact spherical seat (28).

6. The electric vehicle-mounted air pump according to claim 3, characterized in that: The support cover body (13) is composed of a threaded ring, a trapezoidal connecting ring, an upper cover and a top cover, wherein the threaded ring is threadedly connected to the outer wall of the storage seat (1), and the upper cover is in conflict with the top support frame (2).

7. The electric vehicle-mounted air pump according to claim 1, characterized in that: The outer side wall of the top support frame (2) is evenly provided with a plurality of ventilation holes for dissipating heat from the drive motor (6).

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