A portable lithium battery air pump

Abstract

The utility model discloses a portable lithium cell air pump belongs to vehicle mounted appliance technical field, and its technical key points include air pump main part and install lithium cell main part on the surface of air pump main part, the bottom surface fixedly connected with the bottom plate of lithium cell main part through bolt, the air outlet pipe is installed to the air outlet end of lithium cell main part, the surface fixedly connected with the receiving shell of bottom plate, this utility model through the second guide wheel of first spring drive, and the user only needs to pull or release air outlet pipe to realize its extension and automatic recovery, through the second spring buffer shake and ensure the engagement firm, effectively prevented in the tire etc. during the inflation process, because the air pipe internal air pressure or first spring resilience leads to the air outlet pipe accidental shrinkage, guarantees the continuity and safety of inflation operation, and the handle design integrated on the protective shell provides the convenient, stable gripping point for the user, and the convenience of carrying and moving entire air pump equipment is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle-mounted equipment technology, specifically relating to a portable lithium battery air pump. Background Technology

[0002] With the rapid improvement of people's living standards, cars have become one of the most common means of transportation. According to incomplete statistics, accidents caused by uneven tire pressure occur frequently, and most tire blowouts at high speeds are caused by tire pressure that is too low or too high. An air pump, also known as an air compressor, uses electricity to continuously compress air and generate pressure.

[0003] A search revealed a Chinese patent with publication number CN211777920U, which discloses a lithium battery air pump with an LCD screen. The air pump includes a housing, in which a lithium battery is installed. The output end of the lithium battery is electrically connected to the air pump body. However, the existing air pump pipes are not easy to store, which can easily lead to damage to the air pipes when carrying them. Utility Model Content

[0004] The purpose of this invention is to provide a portable lithium battery air pump to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable lithium battery air pump, comprising an air pump body and a lithium battery body mounted on the surface of the air pump body. A base plate is fixedly connected to the bottom surface of the lithium battery body by bolts. An air outlet pipe is installed at the air outlet end of the lithium battery body. A storage shell is fixedly connected to the surface of the base plate. The free end of the air outlet pipe is inserted into the inside of the storage shell. A second guide wheel is provided inside the storage shell. Two connecting rods are symmetrically rotatably connected to the two ends of the second guide wheel by bearings. A sliding groove is provided at the position corresponding to the connecting rod in the storage shell. The connecting rod is slidably connected to the storage shell through the sliding groove. A limiting shell is fixedly connected to the outer surface of the storage shell at the position corresponding to the sliding groove. The connecting rod is inserted into the inside of the limiting shell. A first spring is provided inside the limiting shell. The two ends of the first spring are fixedly connected to the connecting rod and the limiting shell, respectively.

[0006] Preferably, the inside of the housing is rotatably connected to a first guide wheel via a bearing. The first guide wheel is located on one side of the air pump body where the second guide wheel is located, and the air outlet pipe is located above the second guide wheel and below the first guide wheel.

[0007] Preferably, each of the limiting shells is provided with a ratchet plate on one side. The side of the ratchet plate facing the connecting rod is fixedly connected with teeth, which mesh with the ratchet plate. Two second springs are symmetrically fixedly connected to the side of the ratchet plate away from the teeth. A fixing plate is fixedly connected to the end of the second spring away from the ratchet plate. The fixing plate is fixedly connected to the storage shell.

[0008] Preferably, a first pin is fixedly connected to the bottom surface of the connecting rod, and a first force-applying block is fixedly connected to the bottom end of the ratchet plate. The first force-applying block has an inclined surface on the side facing the limiting shell.

[0009] Preferably, a rubber plug is fixedly connected to the side of the ratchet plate away from the limiting shell, and a positioning hole is opened at the position corresponding to the rubber plug on the fixing plate, with the rubber plug inserted inside the positioning hole.

[0010] Preferably, a second force-applying block is fixedly connected to the top of the ratchet plate, and a second pin is fixedly connected to the top surface of the connecting rod. A groove is formed at the position corresponding to the second force-applying block and the second pin, and the second pin is inserted into the groove.

[0011] Preferably, the surface of the base plate is symmetrically connected to two protective shells via a positioning axis, and positioning locks are installed on the surfaces of the two protective shells.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a second guide wheel driven by a first spring, so that the user can extend and automatically retract the air tube simply by pulling or releasing it.

[0014] 2. This utility model uses a second spring to buffer vibrations and ensure a firm engagement, effectively preventing the air outlet pipe from unexpectedly contracting due to internal air pressure or the rebound force of the first spring during tire inflation, thus ensuring the continuity and safety of the inflation operation.

[0015] 3. The integrated handle design on the protective shell of this utility model provides users with a convenient and stable grip point, significantly improving the convenience of carrying and moving the entire air pump equipment, and reflecting humanized design. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the air pump body and protective shell structure of this utility model;

[0018] Figure 3This is a schematic diagram of the vertical cross-sectional structure of the limiting shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the vertical cross-sectional structure of the storage shell of this utility model;

[0020] Figure 5 This utility model Figure 3 Enlarged view of part A.

[0021] In the diagram: 1. Air pump body; 2. Lithium battery body; 3. Storage shell; 4. Air outlet pipe; 5. First guide wheel; 6. Second guide wheel; 7. Slide groove; 8. Connecting rod; 9. Limiting shell; 10. First spring; 11. Racket plate; 12. Fixing plate; 13. Second spring; 14. First pin; 15. First force-applying block; 16. Second pin; 17. Second force-applying block; 18. Protective shell; 19. Positioning lock. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides a portable lithium battery air pump, including an air pump body 1 and a lithium battery body 2 mounted on the surface of the air pump body 1. A base plate is fixedly connected to the bottom surface of the lithium battery body 2 by bolts. An air outlet pipe 4 is installed at the air outlet end of the lithium battery body 2. A storage shell 3 is fixedly connected to the surface of the base plate. The free end of the air outlet pipe 4 is inserted into the inside of the storage shell 3. A second guide wheel 6 is provided inside the storage shell 3. Two connecting rods 8 are symmetrically connected to the two ends of the second guide wheel 6 by bearings. A sliding groove 7 is opened at the position corresponding to the connecting rods 8 in the storage shell 3. The connecting rods 8 are slidably connected to the storage shell 3 through the sliding groove 7. A limiting shell is fixedly connected to the outer surface of the storage shell 3 at the position corresponding to the sliding groove 7. 9. The connecting rod 8 is inserted inside the limiting shell 9. The limiting shell 9 is equipped with a first spring 10. The two ends of the first spring 10 are fixedly connected to the connecting rod 8 and the limiting shell 9 respectively. The receiving shell 3 is rotatably connected to the first guide wheel 5 through the bearing. The first guide wheel 5 is located on one side of the second guide wheel 6 located on the air pump body 1. The air outlet pipe 4 is located above the second guide wheel 6 and below the first guide wheel 5 respectively. When the air outlet pipe 4 is pulled, the first guide wheel 5 and the second guide wheel 6 rotate inside the receiving shell 3 due to friction. At this time, the second guide wheel 6 will slide inside the limiting shell 9 through the connecting rod 8 due to the force. The first spring 10 will be compressed due to the force, thus realizing the stretching of the air outlet pipe 4.

[0024] When the air pump body 1 needs to be moved, the air outlet pipe 4 is stored. When the force applied to the air outlet pipe 4 is released, the connecting rod 8 will move upward due to the elastic potential energy of the first spring 10, causing the air outlet pipe 4 to bend inside the storage shell 3, thereby realizing the storage of the air outlet pipe 4.

[0025] In this embodiment, a ratchet plate 11 is provided on one side of each limiting shell 9. The toothed surface of the ratchet plate 11 faces the connecting rod 8, and the connecting rod 8 facing the ratchet plate 11 is fixedly connected with teeth. The teeth mesh with the ratchet plate 11. Two second springs 13 are symmetrically fixedly connected to the side of the ratchet plate 11 away from the teeth. A fixing plate 12 is fixedly connected to the end of the second spring 13 away from the ratchet plate 11. The fixing plate 12 is fixedly connected to the storage shell 3. When the connecting rod 8 moves downward, the teeth will slide on the toothed surface of the ratchet plate 11. The ratchet plate 11 will vibrate on the surface of the fixing plate 12 through the second springs 13. In short, after the connecting rod 8 stops moving, the ratchet plate 11 and the teeth mesh with each other to limit the connecting rod 8 and prevent the air outlet pipe 4 from being retracted due to the elastic potential energy of the first spring 10 when inflating the wheel.

[0026] In this embodiment, a first pin 14 is fixedly connected to the bottom surface of the connecting rod 8, and a first force-applying block 15 is fixedly connected to the bottom end of the ratchet plate 11. The first force-applying block 15 has an inclined surface on the side facing the limiting shell 9, and a rubber plug is fixedly connected to the side of the ratchet plate 11 away from the limiting shell 9. A positioning hole is opened at the position corresponding to the rubber plug on the fixing plate 12. The rubber plug is inserted into the positioning hole. When the air outlet pipe 4 is used up and needs to be retracted, the air outlet pipe 4 is pulled to the lowest position. The connecting rod 8 will bring the first pin 14 into contact with the first force-applying block 15. By squeezing the first force-applying block 15, the rubber plug is inserted into the positioning hole, thereby limiting the ratchet plate 11. The elasticity of the first spring 10 can then be used to retract the air outlet pipe 4.

[0027] In this embodiment, a second force-applying block 17 is fixedly connected to the top of the ratchet plate 11, and a second pin 16 is fixedly connected to the top surface of the connecting rod 8. A groove is provided at the position corresponding to the second force-applying block 17 and the second pin 16. The second pin 16 is inserted into the groove. When it is necessary to limit the connecting rod 8 again, the first spring 10 will push the connecting rod 8 upward until the second pin 16 is inserted into the groove of the second force-applying block 17. The ratchet plate 11 is limited by the second force-applying block 17, so that the ratchet plate 11 moves towards the limiting shell 9 until the rubber plug is pulled out from the inside of the positioning hole.

[0028] In this embodiment, the surface of the base plate is symmetrically connected to two protective shells 18 via a positioning axis. Positioning locks 19 are installed on the surfaces of the two protective shells 18. When it is necessary to replace the lithium battery body 2, the positioning locks 19 are unlocked, and the two lithium battery bodies 2 are rotated along the axis to expose the lithium battery body 2, thereby enabling the replacement of the lithium battery body 2. Normally, the handles of the protective shells 18 prevent the air pump body 1 from being difficult to pick up.

[0029] The use of this utility model involves the following steps:

[0030] S1: When the air outlet pipe 4 is pulled, the first guide wheel 5 and the second guide wheel 6 rotate inside the housing 3 due to friction. At this time, the second guide wheel 6 will slide inside the limiting housing 9 through the connecting rod 8 due to the force, and the first spring 10 will be compressed due to the force, thus realizing the stretching of the air outlet pipe 4.

[0031] S2: When the air pump body 1 needs to be moved, the air outlet pipe 4 is stored. When the force applied to the air outlet pipe 4 is released, the connecting rod 8 will move upward due to the elastic potential energy of the first spring 10, causing the air outlet pipe 4 to bend inside the storage shell 3, thereby realizing the storage of the air outlet pipe 4.

[0032] S3: When the connecting rod 8 moves downward, the teeth will slide on the tooth surface of the ratchet plate 11. The ratchet plate 11 will vibrate on the surface of the fixed plate 12 through the second spring 13. In short, after the connecting rod 8 stops moving, the ratchet plate 11 and the teeth mesh with each other to limit the connecting rod 8 and prevent the air outlet pipe 4 from being retracted due to the elastic potential energy of the first spring 10 when inflating the wheel.

[0033] S4: When the air outlet pipe 4 is used up and needs to be retracted, pull the air outlet pipe 4 to the lowest position. The connecting rod 8 will bring the first pin 14 into contact with the first force block 15. By squeezing the first force block 15, the rubber plug is inserted into the positioning hole, thereby limiting the ratchet plate 11. The elasticity of the first spring 10 can then be used to retract the air outlet pipe 4.

[0034] S5: When it is necessary to limit the connecting rod 8 again, the first spring 10 will push the connecting rod 8 upward until the second pin 16 is inserted into the inclined groove of the second force block 17, and the second force block 17 will limit the ratchet plate 11, so that the ratchet plate 11 moves towards the limiting shell 9 until the rubber plug is pulled out from the inside of the positioning hole.

[0035] S6: When it is necessary to replace the lithium battery body 2, unlock the positioning lock 19 and rotate the two lithium battery bodies 2 along the axis to expose the lithium battery body 2 and replace the lithium battery body 2. Normally, the handle of the protective shell 18 prevents the air pump body 1 from being difficult to take out.

[0036] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable lithium battery air pump, comprising an air pump body (1) and a lithium battery body (2) mounted on the surface of the air pump body (1), characterized in that: The bottom surface of the lithium battery body (2) is fixedly connected to a base plate by bolts. An outlet pipe (4) is installed at the outlet end of the lithium battery body (2). A storage shell (3) is fixedly connected to the surface of the base plate. The free end of the outlet pipe (4) is inserted into the inside of the storage shell (3). A second guide wheel (6) is provided inside the storage shell (3). Two connecting rods (8) are symmetrically connected to the two ends of the second guide wheel (6) by bearings. A sliding groove (7) is opened at the position corresponding to the connecting rod (8) of the storage shell (3). The connecting rod (8) is slidably connected to the storage shell (3) through the sliding groove (7). A limiting shell (9) is fixedly connected to the outer surface of the storage shell (3) at the position corresponding to the sliding groove (7). The connecting rod (8) is inserted into the inside of the limiting shell (9). A first spring (10) is provided inside the limiting shell (9). The two ends of the first spring (10) are fixedly connected to the connecting rod (8) and the limiting shell (9) respectively.

2. The portable lithium battery air pump according to claim 1, characterized in that: The storage shell (3) is rotatably connected to a first guide wheel (5) via a bearing. The first guide wheel (5) is located on one side of the air pump body (1) where the second guide wheel (6) is located. The air outlet pipe (4) is located above the second guide wheel (6) and below the first guide wheel (5).

3. A portable lithium battery air pump according to claim 1, characterized in that: Each of the limiting shells (9) is provided with a ratchet plate (11) on one side. The toothed surface of the ratchet plate (11) faces the connecting rod (8). The connecting rod (8) is fixedly connected with teeth on the side facing the ratchet plate (11). The teeth mesh with the ratchet plate (11). Two second springs (13) are symmetrically fixedly connected on the side of the ratchet plate (11) away from the teeth. A fixing plate (12) is fixedly connected to the end of the second spring (13) away from the ratchet plate (11). The fixing plate (12) is fixedly connected to the storage shell (3).

4. A portable lithium battery air pump according to claim 3, characterized in that: The bottom surface of the connecting rod (8) is fixedly connected to a first pin (14), and the bottom end of the ratchet plate (11) is fixedly connected to a first force-applying block (15). The first force-applying block (15) has an inclined surface on the side facing the limiting shell (9).

5. A portable lithium battery air pump according to claim 3, characterized in that: A rubber plug is fixedly connected to the side of the ratchet plate (11) away from the limiting shell (9), and a positioning hole is opened on the fixing plate (12) at the position corresponding to the rubber plug, and the rubber plug is inserted into the positioning hole.

6. A portable lithium battery air pump according to claim 3, characterized in that: The top of the ratchet plate (11) is fixedly connected to a second force-applying block (17), and the top surface of the connecting rod (8) is fixedly connected to a second pin (16). The second force-applying block (17) and the second pin (16) are provided with a groove at the corresponding positions, and the second pin (16) is inserted into the groove.

7. A portable lithium battery air pump according to claim 1, characterized in that: The surface of the base plate is symmetrically connected to two protective shells (18) via a positioning axis, and positioning locks (19) are installed on the surfaces of the two protective shells (18).

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