Portable multifunctional automobile emergency starting power supply

Abstract

The utility model relates to the technical field of automobile emergency starting power supplies, in particular to a portable multifunctional automobile emergency starting power supply, which comprises a shell, a battery pack and a circuit board, the battery pack and the circuit board are positioned in the shell, the shell comprises an upper shell and a lower shell which are fixed through a plurality of screws, and the screws are arranged around the edge of the shell. A sealing structure is arranged at the butt joint position of the upper shell and the lower shell and comprises a sealing ring and a pressure display device, the sealing ring is of a hollow structure, a diaphragm is arranged in the sealing ring, and the diaphragm divides the interior of the sealing ring into a plurality of independent closed spaces in the length direction of the sealing ring; the multiple pressure display devices are connected with the multiple closed spaces correspondingly and used for displaying the air pressure of the closed spaces. Whether the pressure in each closed space reaches the standard or not can be judged through the pressure display device, so that whether a screw is screwed in place or not is judged, the sealing condition of the joint of the upper shell and the lower shell is known, and the sealing failure condition is found in time.

Description

Technical Field

[0001] This utility model relates to the field of automotive emergency jump starter technology, specifically a portable multi-functional automotive emergency jump starter. Background Technology

[0002] Car jump starters, as portable devices, are widely used to provide temporary power to start vehicles when car batteries are depleted. Existing car jump starters typically consist of a casing, a lithium battery pack encapsulated within the casing, and a circuit board. The casing is designed with an output interface (such as a clip-on cable) for connecting to the car battery, and an input interface for charging itself; common interface types include Micro USB or Type-C.

[0003] For ease of assembly, the outer casing typically consists of upper and lower housings, which are secured together by multiple screws. Furthermore, to improve waterproofing, a sealing structure, usually a rubber sealing ring, is used at the joint between the upper and lower housings. However, the effectiveness of this sealing structure depends on all screws being tightened at the same level during assembly. If some bolts are not fully tightened or loosen during subsequent use, the seal between the upper and lower housings may fail. This situation is not only difficult to detect in time but may also adversely affect the reliability and lifespan of the equipment. To address the above problems, this utility model proposes a portable multi-functional car emergency jump starter. Utility Model Content

[0004] The purpose of this invention is to provide a portable, multi-functional car emergency jump starter to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution:

[0006] A portable multi-functional car emergency jump starter includes a housing and a battery pack and circuit board located inside the housing. The housing includes an upper housing and a lower housing fixed by multiple screws arranged around the edge of the housing. A sealing structure is provided at the mating position of the upper and lower housings. The sealing structure includes a sealing ring and a pressure display device. The sealing ring has a hollow structure, and a diaphragm is provided inside the sealing ring. The diaphragm divides the interior of the sealing ring into several independent sealed spaces along the length of the sealing ring. The pressure display device has multiple units and is connected to several of the sealed spaces to display the air pressure of the sealed spaces.

[0007] Optionally, the side of the lower housing that contacts the lower housing has a protruding flange, the sealing ring is fixedly disposed on the flange, the side of the sealing ring that is opposite to the flange has a pressure ring fixedly disposed thereon, and the upper housing has a recessed groove corresponding to the position of the sealing ring.

[0008] Optionally, a sealing gasket is provided on the side of the pressure ring opposite to the sealing ring, and the sealing gasket is made of rubber.

[0009] Optionally, both sides of the pressure ring are provided with chamfers.

[0010] Optionally, the pressure display device includes a transparent display tube, a display piston, a reset spring, and a connecting pipe; the display piston is movably disposed inside the display tube and divides the interior of the display tube into an upper cavity and a lower cavity, and the display tube is provided with an air hole that connects the lower cavity to the outside; the reset spring is disposed inside the lower cavity; and the connecting pipe connects the upper cavity and the sealed space.

[0011] Optionally, a limiting platform is fixedly installed in the upper cavity, and the connecting pipe and the display piston are located on both sides of the limiting platform.

[0012] Optionally, the connecting pipe includes a first pipe body and a second pipe body, the first end of the first pipe body is connected to the sealed space of the sealing ring, the first end of the second pipe body is connected to the upper cavity of the display tube, and the second ends of the first pipe body and the second end of the second pipe body are perpendicular to each other and threaded together.

[0013] Optionally, the outer casing is provided with an inflation tube, one end of which is connected to an air pump, and the other end is provided with an inflation clamp. The air pump is electrically connected to the battery pack.

[0014] Compared with the prior art, this utility model provides a portable multi-functional car emergency jump starter, which has the following advantages:

[0015] 1. This utility model provides a sealing structure at the joint between the upper and lower housings. The sealing structure includes a sealing ring and a pressure display device. The pressure display device can determine whether the pressure in each sealed space has reached the set value, thereby determining whether the screws are tightened properly, and thus knowing the sealing condition at the connection between the upper and lower housings, so as to detect the sealing failure in time.

[0016] 2. When the upper and lower shells are assembled together, the flange, sealing ring, and pressure ring on the lower shell are all embedded in the groove of the upper shell, and the pressure ring abuts against the top of the groove. Under the compression action, the sealing ring is compressed and deformed, and the left and right sides of the sealing ring protrude outward from the gap between the flange and the pressure ring and abut against the two sides of the groove, thereby forming a double seal. In addition, the interlocking fit between the flange and the groove can also limit the sliding between the upper and lower shells in the horizontal direction and improve the stability of the connection.

[0017] 3. The portable multi-functional car emergency jump starter of this utility model has the function of inflating car tires. Specifically, when a car tire needs to be inflated, simply fix the inflation clamp to the position of the tire inflation nozzle, and then start the air pump through the on / off switch. The air pump inflates the car tire through the inflation tube. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the disassembled upper and lower shell structures of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the upper and lower shells of this utility model during assembly;

[0021] Figure 4 For the present utility model Figure 3 A magnified structural diagram at point A;

[0022] Figure 5 This is a cross-sectional structural diagram of the upper and lower shells of this utility model when they are separated.

[0023] Figure 6 This is a schematic diagram of the connection structure between the sealing ring and the pressure display device of this utility model;

[0024] Figure 7 This is a schematic diagram of the pressure display device of this utility model.

[0025] In the diagram: 1. Battery pack; 2. Circuit board; 3. Input interface; 4. Output interface; 5. Power switch; 6. Upper housing; 7. Lower housing; 8. Screw; 9. Sealing ring; 10. Pressure display device; 100. Display tube; 101. Display piston; 102. Return spring; 103. Connecting pipe; 1030. First tube body; 1031. Second tube body; 104. Air hole; 105. Upper cavity; 106. Lower cavity; 107. Limiting platform; 11. Diaphragm; 12. Sealed space; 13. Flange; 14. Pressure ring; 15. Groove; 16. Sealing gasket; 17. Chamfer; 18. Inflation tube; 19. Inflation clamp; 20. On / off switch. Detailed Implementation

[0026] 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.

[0027] Example: Please refer to Figures 1 to 7 According to an embodiment of this utility model, a portable multi-functional car emergency jump starter is provided, including a housing and a battery pack 1 and a circuit board 2 located inside the housing. The exterior of the housing is provided with an output interface 4, an input interface 3, and a power switch 5 connected to the circuit board 2. The input interface 3 is USB, the output interface 4 consists of two spring clips, and the power switch 5 controls the on / off state of the output interface 4. The housing includes an upper shell 6 and a lower shell 7 fixed by multiple screws 8. The screws 8 are arranged around the edge of the housing. In this example, one screw 8 is provided at the front, rear, left, and right of the housing. A sealing structure is provided at the mating position of the upper shell 6 and the lower shell 7. The sealing structure includes a sealing ring 9 and a pressure display device 10. Figure 6 As shown, the sealing ring 9 has a hollow structure, and a diaphragm 11 is provided inside the sealing ring 9. The diaphragm 11 divides the interior of the sealing ring 9 into several independent sealed spaces 12 along the length of the sealing ring 9. The pressure display device 10 has multiple devices and is connected to several sealed spaces 12 respectively, so as to display the air pressure of the sealed space 12.

[0028] The portable multi-functional car emergency jump starter with the above structure, when the upper housing 6 and lower housing 7 are fixed by multiple screws 8, each screw 8 corresponds to a sealed space. When the screw 8 is tightened, the air pressure in the corresponding sealed space 12 will gradually increase. Only when the air pressure reaches the set value can the sealing ring 9 at that position achieve a good sealing effect. The pressure display device 10 can determine whether the pressure in each sealed space 12 has reached the set value, thus determining whether the screw 8 is tightened and whether the seal is in place. Moreover, during subsequent use, it can also promptly determine whether the screw 8 has become loose. Therefore, the portable multi-functional car emergency jump starter with this structure can effectively and quickly determine whether the screw 8 is tightened properly, thereby knowing the sealing condition at the connection between the upper housing 6 and the lower housing 7, and promptly detecting sealing failure.

[0029] Based on the above embodiment, a flange 13 is protruding from the side of the lower housing 7 that contacts the flange 13, a sealing ring 9 is fixedly disposed on the flange 13, and a pressure ring 14 is fixedly disposed on the side of the sealing ring 9 that is away from the flange 13. A groove 15 is recessed into the upper housing 6 corresponding to the position of the sealing ring 9. Figure 3 and 4 As shown, when the upper housing 6 and the lower housing 7 are assembled together, the flange 13, sealing ring 9 and pressure ring 14 on the lower housing 7 are all embedded in the groove 15 of the upper housing 6, and the pressure ring 14 abuts against the top of the groove 15. Under the compression action, the sealing ring 9 is compressed and deformed. The left and right sides of the sealing ring 9 protrude outward from the gap between the flange 13 and the pressure ring 14 and abut against the sides of the groove 15, thereby forming a double seal. In addition, the interlocking fit between the flange 13 and the groove 15 can also limit the sliding between the upper housing 6 and the lower housing 7 in the horizontal direction, and improve the stability of the connection.

[0030] To further improve the sealing performance at the connection between the upper housing 6 and the lower housing 7, based on the above embodiment, a sealing gasket 16 is provided on the side of the pressure ring 14 facing away from the sealing ring 9. The sealing gasket 16 is made of rubber. The sealing gasket 16 forms a third seal between the upper housing 6 and the lower housing 7.

[0031] Based on the above embodiment, chamfers 17 are provided on both sides of the pressure ring 14. This design allows the pressure ring 14 to be inserted into the groove 15 more easily, thus making the assembly of the upper housing 6 and the lower housing 7 smoother.

[0032] Based on the above embodiments, the pressure display device 10 includes a transparent display tube 100, a display piston 101, a return spring 102, and a connecting pipe 103; the display piston 101 is movably disposed inside the display tube 100 and divides the interior of the display tube 100 into an upper cavity 105 and a lower cavity 106, and the display tube 100 is provided with an air hole 104 that connects the lower cavity 106 to the outside; the return spring 102 is disposed inside the lower cavity 106; the connecting pipe 103 connects the upper cavity 105 and the sealed space 12. With this configuration, when the sealing ring 9 is compressed by the upper housing 6 and the lower housing 7, the air pressure inside the upper cavity 105 of the display tube 100 will gradually increase as the compressive force between the upper housing 6 and the lower housing 7 increases, since the sealed space 12 is connected to the upper cavity 105 of the display tube 100. At this time, the display piston 101 will move along the air pressure inside the display tube 100 and compress the return spring 102. The pressure of the sealed space 12 can be indirectly known by the change in the position of the display piston 101 inside the display tube 100. When the upper housing 6 and the lower housing 7 separate, the pressure acting on the sealing ring 9 is removed, the air pressure in the sealed space 12 and the upper cavity 105 decreases, and the display piston 101 returns to its original position under the restoring force of the return spring 102. Of course, in other embodiments, the pressure display device 10 can also be a pressure gauge.

[0033] Based on the above embodiment, a limiting platform 107 is fixedly installed inside the upper cavity 105, with the connecting pipe 103 and the display piston 101 located on both sides of the limiting platform 107. By setting the limiting platform 107, the extreme position of the upward movement of the display piston 101 can be controlled, so as to prevent the display piston 101 from blocking the connection position between the connecting pipe 103 and the upper cavity 105.

[0034] Based on the above embodiment, the connecting pipe 103 includes a first pipe body 1030 and a second pipe body 1031. The first end of the first pipe body 1030 is connected to the sealed space 12 of the sealing ring 9, and the first end of the second pipe body 1031 is connected to the upper cavity 105 of the display tube 100. The second ends of the first pipe body 1030 and the second ends of the second pipe body 1031 are perpendicular to each other and are threaded together. This arrangement makes it easier to assemble and disassemble the pressure display device 10 and the sealing ring 9, so that they can be disassembled and replaced in time if either of them is damaged.

[0035] Based on the above embodiment, an inflation tube 18 is provided on the outer casing. One end of the inflation tube 18 is connected to an air pump, and the other end is provided with an inflation clamp 19. The air pump is electrically connected to the battery pack 1. An on / off switch 20 is provided on the outer casing to control the start and stop of the air pump. This configuration enables the portable multi-functional car emergency jump starter to inflate car tires. Specifically, when a car tire needs to be inflated, simply fix the inflation clamp 19 to the tire's inflation nozzle, and then start the air pump via the on / off switch 20. The air pump inflates the car tire through the inflation tube 18.

[0036] Working Principle: When assembling this portable multi-functional car emergency jump starter, the flange 13, sealing ring 9, and pressure ring 14 on the lower housing 7 are all embedded into the groove 15 of the upper housing 6, with the pressure ring 14 abutting against the top of the groove 15. Under the pressure, the sealing ring 9 is deformed, and the left and right sides of the sealing ring 9 protrude outward from the gap between the flange 13 and the pressure ring 14, abutting against the sides of the groove 15 to form a double seal. Next, the upper housing 6 and the lower housing 7 are fixed by multiple screws 8. Since each screw 8 corresponds to a sealing space, when the screw 8 is tightened, the air pressure in the corresponding sealed space 12 will gradually increase. Only when the air pressure reaches the set value can the sealing ring 9 at that position achieve a good sealing effect. The pressure display device 10 can determine whether the pressure in each sealed space 12 has reached the set value, thus determining whether the screw 8 is tightened and whether the seal is in place. Moreover, during subsequent use, it can also promptly determine whether the screw 8 has become loose.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable multifunctional automobile emergency starting power supply, comprising a shell and a battery pack (1) and a circuit board (2) located in the shell, the shell comprising an upper shell (6) and a lower shell (7) fixed by a plurality of screws (8), the plurality of screws (8) being arranged around the edge of the shell, the upper shell (6) and the lower shell (7) being provided with a sealing structure at the abutment position, characterized in that, The sealing structure comprises: a sealing ring (9) in hollow structure, an inner part of the sealing ring (9) being provided with a diaphragm (11) separating the inner part of the sealing ring (9) into several independent closed spaces (12) along a length direction of the sealing ring (9); and a pressure display device (10) having a plurality of and being connected with the several closed spaces (12) respectively for displaying air pressure of the closed spaces (12).

2. The portable multi-functional automobile emergency jump starter power source of claim 1, wherein: The lower shell (7) is provided with a flange (13) protruding from a side in contact with the lower shell (7), the sealing ring (9) is fixedly arranged on the flange (13), a side of the sealing ring (9) away from the flange (13) is fixedly provided with a pressing ring (14), and the upper shell (6) is provided with a groove (15) concave corresponding to a position of the sealing ring (9).

3. The portable multi-functional automobile emergency jump starter power source of claim 2, wherein: A side of the pressing ring (14) away from the sealing ring (9) is provided with a sealing gasket (16) made of rubber material.

4. The portable multi-functional automobile emergency jump starter power source of claim 2, wherein: Both sides of the pressing ring (14) are provided with chamfers (17).

5. The portable multi-functional automobile emergency jump starter power source of claim 1, wherein: The pressure display device (10) comprises: a display tube (100) made of transparent material; a display piston (101) movably arranged in the display tube (100) and separating an inner part of the display tube (100) into an upper cavity (105) and a lower cavity (106), the display tube (100) being provided with an air hole (104) for communicating the lower cavity (106) with the outside; a reset spring (102) arranged in the lower cavity (106); and a connecting pipeline (103) connected between the upper cavity (105) and the closed space (12).

6. The portable multi-functional automobile emergency jump starter power source of claim 5, wherein: A limiting table (107) is fixedly arranged in the upper cavity (105), and the connecting pipeline (103) and the display piston (101) are respectively located on two sides of the limiting table (107).

7. The portable multi-functional automobile emergency jump starter power source of claim 5, wherein: The connecting pipeline (103) comprises a first pipe body (1030) and a second pipe body (1031), a first end of the first pipe body (1030) is connected with the closed space (12) of the sealing ring (9), a first end of the second pipe body (1031) is connected with the upper cavity (105) of the display tube (100), and a second end of the first pipe body (1030) and a second end of the second pipe body (1031) are perpendicular and threadedly connected.

8. The portable multi-functional automobile emergency jump starter power source of any one of claims 1 to 7, wherein: The outer shell is provided with an inflation pipe (18), one end of the inflation pipe (18) is connected with a gas pump, the other end is provided with an inflation chuck (19), and the gas pump is electrically connected with the battery pack (1).

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