Burglar alarm for battery of electric vehicle

Abstract

The utility model relates to the field of electric vehicle battery burglary prevention, in particular to an electric vehicle battery burglar alarm which comprises a containing box. A closed cover plate is rotatably hinged to the placement box, a power-off alarm and a reserve battery are installed on the outer side wall of the placement box, the power supply end of the power-off alarm is connected to a copper rod through a wire, the reserve battery is connected to a hollow copper pipe through a wire, and the copper rod is inserted into the hollow copper pipe to form an access. The rotating track of the end of the swing plate intersects with the round corner edge of the sealing block and the lock catch assembly, the positive electrode copper bar and the negative electrode copper bar can be connected in an inserted mode while the sealing cover plate is sealed, and after the air pressure in the fixing pipe rises, the third limiting rod is pushed to enable the copper rod to be connected with the hollow copper pipe in an inserted mode. When a person tilts the lock cylinder assembly through a tool, the alarm function of the power-off alarm cannot be relieved only by unlocking the lock catch assembly, and then the alarm warning function is achieved.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicle battery anti-theft, in particular to an electric vehicle battery anti-theft alarm device. Background Art

[0002] An electric vehicle is a vehicle driven by an electric motor, and the driving of the electric motor requires electric power. Therefore, a storage battery is installed on the electric vehicle. Since the storage battery has a certain value, the battery is often stolen when the electric vehicle is parked outdoors. Therefore, it is necessary to prevent the electric vehicle battery from being stolen.

[0003] The existing storage battery is usually located under the vehicle seat and fixed to the vehicle frame by bolts. When theft occurs, the vehicle seat is opened and the bolts fixing the battery are unscrewed to remove the battery. This battery installation method is difficult to play a role in battery anti-theft. At present, most electric vehicle anti-theft alarm devices use vibration sensors, and this kind of alarm device is extremely prone to false alarms, resulting in poor anti-theft effect. Therefore, an electric vehicle battery anti-theft alarm device is proposed for the above problems. Summary of the Utility Model

[0004] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes an electric vehicle battery anti-theft alarm device.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: An electric vehicle battery anti-theft alarm device described in the utility model includes a placement box; a closed cover plate is rotatably hinged on the placement box, an inflation assembly is arranged on the side wall of the placement box, a closing assembly communicated with the inflation assembly is arranged on the inner wall of the placement box, a pneumatic assembly communicated with the closing assembly is arranged on the side of the closing assembly, a copper rod is installed at the acting end of the pneumatic assembly, a hollow copper tube is installed on the inner wall of the placement box through a support rod, a power-off alarm and a reserve battery are installed on the outer side wall of the placement box, the power supply end of the power-off alarm is connected to the copper rod through a wire, the reserve battery is connected to the hollow copper tube through a wire, and the copper rod is inserted into the hollow copper tube to form a circuit;

[0006] A lock core assembly is arranged on the closed cover plate, a wiring assembly is jointly arranged between the lower part of the closed cover plate and the inner wall of the placement box, a lock catch assembly for locking the closed cover plate is jointly arranged between the inner wall of the placement box and the lower part of the closed cover plate, and the detection end of the power-off alarm is connected to the wiring assembly through a wire;

[0007] The closing assembly includes a closing box, the closing box is fixedly connected to the inner wall of the placement box, a through groove is opened on the closing box, a closing block is slidably arranged in the through groove, and a rounded edge is arranged on the side of the closing block;

[0008] The lock core assembly includes a rotating lock core, which is installed on the closed cover plate. A swing plate is fixedly connected under the rotating core of the rotating lock core. The rotation trajectory of the end of the swing plate intersects with the rounded edge of the closing block and the lock catch assembly, and the end of the swing plate can unlock the lock catch assembly, achieving the function of warning and anti-theft in cooperation. Compared with the traditional battery anti-theft alarm, the protection effect is better, it is not easy to be accidentally touched, and the warning effect is better.

[0009] Preferably, the wiring assembly includes a positive copper bar and a negative copper bar. The positive copper bar is fixedly connected under the closed cover plate, and the negative copper bar is fixedly connected inside the opening of the placement box. The detection end of the power-off alarm is respectively connected to the positive copper bar and the negative copper bar through wires. The positive copper bar and the negative copper bar are inserted and matched, achieving the function of circuit connection and enabling the power-off alarm to detect the circuit.

[0010] Preferably, the inflation assembly includes a first closed cylinder, which is fixedly connected to the outer wall of the placement box. A one-way valve plate is slidably arranged inside the first closed cylinder. A first limiting rod is fixedly connected to the one-way valve plate. The top end of the first limiting rod penetrates through the first closed cylinder and is fixedly connected to a first limiting plate. A first spring is arranged inside the first closed cylinder, and the first spring is located below the one-way valve plate. A connecting pipe is fixedly connected under the first closed cylinder. The end of the connecting pipe penetrates through the placement box and is connected to the closed box. A one-way valve is installed on the connecting pipe. A protective shell is arranged outside the first closed cylinder, the power-off alarm and the reserve battery, and the first limiting plate is located above the protective shell. The end of the connecting pipe penetrates through the side wall of the placement box and is connected to the closing assembly, achieving the function of pressurization and enabling the power-off alarm to operate normally.

[0011] Preferably, a hollow shaft is horizontally and fixedly connected inside the closed box. A telescopic shaft is slidably arranged inside the hollow shaft. The end of the telescopic shaft is fixedly connected to the closing block. The closing block is hermetically arranged at the opening of the through groove. A second spring is arranged inside the closed box, and the second spring is sleeved on the hollow shaft and the telescopic shaft and is located between the inner wall of the closed box and the closing block, achieving the function of limiting the movement of the closing block.

[0012] Preferably, the pneumatic assembly includes a fixed pipe, which is fixedly connected to the side of the closed box. A limiting ring is installed inside the fixed pipe. A breathable plate is fixedly connected to the port of the fixed pipe. A piston column is slidably arranged inside the fixed pipe, and the piston column is located between the breathable plate and the limiting ring. A third limiting rod is fixedly connected to the piston column. A hole is formed through the side of the breathable plate, and the third limiting rod penetrates through the hole formed in the breathable plate. A copper rod is fixedly connected to the end of the third limiting rod. A third spring is arranged inside the fixed pipe, and the third spring is located between the breathable plate and the piston column, achieving the function of inserting and communicating the copper rod with the hollow copper pipe.

[0013] Preferably, the buckle assembly includes a fixed plate and a second buckle plate. The second buckle plate is fixedly connected to the inner wall of the placement box, and the fixed plate is fixedly connected under the closed cover plate. Two fourth limiting rods are fixedly connected to the side of the fixed plate. A first buckle plate is slidably arranged on the two fourth limiting rods. Fourth springs are sleeved on the two fourth limiting rods, and the fourth springs are located between the fixed plate and the first buckle plate. A second limiting plate is fixedly connected to the end of the fourth limiting rod. The first buckle plate and the second buckle plate are cooperatively buckled together, and the end of the swing plate can push the first buckle plate and the second buckle plate to separate and unlock, so as to achieve the locking effect of the closed cover plate.

[0014] Preferably, a chute is opened on the inner wall of the closed box, and a slider for sliding in the chute is fixedly connected to the closed block, so as to achieve the effect of limiting the movement of the closed block.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. When the present invention is closed by the closed cover plate, the positive copper row will be inserted into the negative copper row. At this time, the detection end of the power-off alarm will form a circuit through the positive copper row and the negative copper row. After the air pressure in the fixed tube increases, it will push the third limiting rod to insert the copper rod into the hollow copper tube. When someone pries and damages the closed cover plate, when the positive copper row is separated from the negative copper row, the power-off alarm will emit an alarm. And when someone uses a tool to pry the lock core assembly, only unlocking the buckle assembly cannot cancel the alarm function of the power-off alarm, so as to achieve the warning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is the first three-dimensional structure diagram;

[0019] Figure 2 is the enlarged sectional view of the main structure of the placement box;

[0020] Figure 3 is the enlarged sectional view of the main structure of the inflation assembly;

[0021] Figure 4 is the enlarged sectional view of the main structure of the closing assembly;

[0022] Figure 5 is the enlarged view of area A in the sectional view of the main structure of the closing assembly;

[0023] Figure 6 It is an enlarged schematic diagram of the cross-section of the main structure of the pneumatic component;

[0024] Figure 7 It is an enlarged schematic diagram of area B in the cross-sectional view of the main structure of the pneumatic component;

[0025] Figure 8 It is an enlarged schematic diagram of the main structure for installing the lock component and the wiring component.

[0026] In the figure: 1. Placing box;

[0027] 2. Sealing cover plate;

[0028] 3. Inflating component; 31. First closed cylinder; 32. One-way valve plate; 33. First limiting rod; 34. First limiting plate; 35. First spring; 36. Connecting pipe; 37. One-way valve;

[0029] 4. Lock core component; 41. Rotating lock core; 42. Swing plate;

[0030] 5. Power-off alarm;

[0031] 6. Reserve battery;

[0032] 7. Lock component; 71. Fixed plate; 72. Fourth limiting rod; 73. First buckle plate; 74. Second limiting plate; 75. Fourth spring; 76. Second buckle plate;

[0033] 8. Sealing component; 81. Sealing box; 82. Through groove; 83. Sealing block; 84. Hollow shaft; 85. Telescopic shaft; 86. Second spring; 87. Slide block; 88. Slide groove;

[0034] 9. Pneumatic component; 91. Fixed pipe; 92. Limiting ring; 93. Ventilation plate; 94. Piston column; 95. Third limiting rod; 96. Third spring;

[0035] 10. Copper rod;

[0036] 11. Support rod;

[0037] 12. Hollow copper pipe;

[0038] 13. Wiring component; 131. Positive copper busbar; 132. Negative copper busbar. Specific implementation method

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] Please refer to Figure 1-8 As shown in the figure, an anti-theft alarm for an electric vehicle battery includes a placement box 1; as Figure 2 shown in the figure, a closing cover plate 2 is rotatably hinged on the placement box 1, and an inflation assembly 3 is arranged on the side wall of the placement box 1. As Figures 4-7 shown in the figure, a closing assembly 8 communicated with the inflation assembly 3 is arranged on the inner wall of the placement box 1. A pneumatic assembly 9 communicated with the closing assembly 8 is arranged on the side of the closing assembly 8. A copper rod 10 is installed at the acting end of the pneumatic assembly 9. A hollow copper tube 12 is installed on the inner wall of the placement box 1 through a support rod 11. A power-off alarm 5 and a reserve battery 6 are installed on the outer side wall of the placement box 1. The power supply end of the power-off alarm 5 is connected to the copper rod 10 through a wire, and the reserve battery 6 is connected to the hollow copper tube 12 through a wire, and the copper rod 10 is inserted into the hollow copper tube 12 to form a circuit;

[0041] As Figure 2 and Figure 8 shown in the figure, a lock core assembly 4 is arranged on the closing cover plate 2. A wiring assembly 13 is jointly arranged between the lower part of the closing cover plate 2 and the inner wall of the placement box 1. A lock catch assembly 7 for locking the closing cover plate 2 is jointly arranged between the inner wall of the placement box 1 and the lower part of the closing cover plate 2. The detection end of the power-off alarm 5 is connected to the wiring assembly 13 through a wire;

[0042] As Figure 5 shown in the figure, the closing assembly 8 includes a closing box 81. The closing box 81 is fixedly connected to the inner wall of the placement box 1. A through groove 82 is opened on the closing box 81. A closing block 83 is slidably arranged in the through groove 82. A rounded edge is arranged on the side of the closing block 83;

[0043] As Figure 2Among them, the lock core assembly 4 includes a rotating lock core 41. The rotating lock core 41 is installed on the closed cover plate 2. A swing plate 42 is fixedly connected under the rotating core of the rotating lock core 41. The rotation trajectory of the end of the swing plate 42 intersects with the rounded edge of the closing block 83 and the lock catch assembly 7, and the end of the swing plate 42 can unlock the lock catch assembly 7. The battery is installed in the placement box 1, and the inflation assembly 3 is used to fill the gas into the closing assembly 8 and the pneumatic assembly 9. When the gas is filled into the closing assembly 8, the air pressure inside it will increase, and under the action of the air pressure, the closing block 83 will be sealed in the through groove 82. And when the gas is filled into the pneumatic assembly 9, the pneumatic assembly 9 will push the copper rod 10 to be inserted into the hollow copper tube 12, so that the reserve battery 6 can supply power to the power-off alarm 5 through the wire, the hollow copper tube 12 and the copper rod 10 (the working principle of the power-off alarm 5 adopted in this solution is the same as that of the same name and model D-138), so that the power-off alarm 5 can play the role of alarm and anti-theft. When the copper rod 10 and the hollow copper tube 12 are in a connected state, the wiring assembly 13 is separated, and the power-off alarm 5 can issue an alarm. When the copper rod 10 and the hollow copper tube 12 are in a separated state, the power-off alarm 5 can cancel the alarm, and then the wiring assembly 13 can be separated to replace and repair the battery in the placement box 1.

[0044] As Figure 2 and Figure 8 Among them, the wiring assembly 13 includes a positive copper busbar 131 and a negative copper busbar 132. The positive copper busbar 131 is fixedly connected under the closed cover plate 2. The negative copper busbar 132 is fixedly connected inside the opening of the placement box 1. The detection ends of the power-off alarm 5 are respectively connected to the positive copper busbar 131 and the negative copper busbar 132 through wires. The positive copper busbar 131 and the negative copper busbar 132 are cooperatively inserted. By connecting the positive copper busbar 131 and the negative copper busbar 132 to the detection ends of the power-off alarm 5 through wires respectively, when the copper rod 10 and the hollow copper tube 12 are in a connected state and the closed cover plate 2 is opened, the power-off alarm 5 will issue an alarm to achieve the function of prompting anti-theft.

[0045] As Figure 2 and Figure 3Among them, the inflation assembly 3 includes a first closed cylinder 31, the first closed cylinder 31 is fixedly connected to the outer wall of the placement box 1, a one-way valve plate 32 is slidably arranged in the first closed cylinder 31, a first limiting rod 33 is fixedly connected to the one-way valve plate 32, the top end of the first limiting rod 33 penetrates through the first closed cylinder 31 and is fixedly connected to a first limiting plate 34, a first spring 35 is arranged in the first closed cylinder 31, and the first spring 35 is located below the one-way valve plate 32. A connecting pipe 36 is fixedly connected to the lower part of the first closed cylinder 31, the end of the connecting pipe 36 penetrates through the placement box 1 and is connected to the closed box 81, a one-way valve 37 is installed on the connecting pipe 36. A protective shell is arranged outside the first closed cylinder 31, the power-off alarm 5 and the reserve battery 6, and the first limiting plate 34 is located above the protective shell. The end of the connecting pipe 36 penetrates through the side wall of the placement box 1 and is connected to the closing assembly 8. When the one-way valve plate 32 moves downward under the action of the one-way valve 37, the gas in the first closed cylinder 31 will be injected into the closing assembly 8 and the pneumatic assembly 9 through the connecting pipe 36, so that the air pressure in the closing assembly 8 and the pneumatic assembly 9 increases. When the one-way valve plate 32 moves downward, the gas located below the one-way valve plate 32 cannot be discharged and can only be discharged from the connecting pipe 36. And under the action of the first spring 35, the one-way valve plate 32 will be pushed upward to reset the one-way valve plate 32, and the gas on the one-way valve plate 32 will enter below the one-way valve plate 32 through the one-way air valve on the one-way valve plate 32 to achieve the pressurization effect.

[0046] As Figure 4 and Figure 5 Among them, a hollow shaft 84 is horizontally and fixedly connected in the closed box 81, a telescopic shaft 85 is slidably arranged in the hollow shaft 84, the end of the telescopic shaft 85 is fixedly connected to the closing block 83, the closing block 83 is hermetically arranged in the opening of the through groove 82, a second spring 86 is arranged in the closed box 81, and the second spring 86 is sleeved on the hollow shaft 84 and the telescopic shaft 85 and is located between the inner wall of the closed box 81 and the closing block 83. After the gas is injected into the closing assembly 8, the air pressure in the closed box 81 will increase and cooperate with the second spring 86 to seal the opening of the through groove 82. At this time, the telescopic shaft 85 will be in an extended state in the hollow shaft 84. When the closing block 83 is pushed and moves into the closed box 81, the through groove 82 will be opened. At this time, the air pressure in the closed box 81 will be discharged from the opening of the through groove 82 to discharge the air pressure in the closing assembly 8 and the pneumatic assembly 9.

[0047] As Figure 6 and Figure 7Among them, the pneumatic component 9 includes a fixed pipe 91, the fixed pipe 91 is fixedly connected to the side of the closed box 81, a limiting ring 92 is installed in the fixed pipe 91, a breathable plate 93 is fixedly connected to the port of the fixed pipe 91, a second piston column 94 is slidably arranged in the fixed pipe 91, and the second piston column 94 is located between the breathable plate 93 and the limiting ring 92. A third limiting rod 95 is fixedly connected to the second piston column 94. A hole is formed through the side of the breathable plate 93, and the third limiting rod 95 is arranged through the hole formed in the breathable plate 93. The copper rod 10 is fixedly connected to the end of the third limiting rod 95. A third spring 96 is arranged in the fixed pipe 91, and the third spring 96 is located between the breathable plate 93 and the second piston column 94. When the air pressure in the pneumatic component 9 increases, the second piston column 94 will push the third limiting rod 95 to extend, and when the third limiting rod 95 extends, it will make the copper rod 10 inserted and communicated with the hollow copper pipe 12, so as to supply power to the power-off alarm 5. And when the air pressure in the closing component 8 and the pneumatic component 9 leaks out, under the action of the third spring 96, the third spring 96 will reset and fit with the fixed pipe 91, and the third limiting rod 95 will contract into the fixed pipe 91, so as to separate the copper rod 10 from the hollow copper pipe 12, and then cut off the power supply of the power-off alarm 5.

[0048] As Figure 8 Among them, the buckle component 7 includes a fixed plate 71 and a second buckle plate 76. The second buckle plate 76 is fixedly connected to the inner wall of the placement box 1. The fixed plate 71 is fixedly connected under the closed cover plate 2. Two fourth limiting rods 72 are fixedly connected to the side of the fixed plate 71. A first buckle plate 73 is slidably arranged on the two fourth limiting rods 72. Fourth springs 75 are sleeved on the two fourth limiting rods 72, and the fourth springs 75 are located between the fixed plate 71 and the first buckle plate 73. The end of the fourth limiting rod 72 is fixedly connected with a second limiting plate 74. The first buckle plate 73 and the second buckle plate 76 are cooperatively buckled together, and the end of the swing plate 42 can push the first buckle plate 73 and the second buckle plate 76 to separate and unlock. Under the action of the fourth spring 75, the first buckle plate 73 and the second buckle plate 76 will be locked, so as to lock the closed cover plate 2 on the opening of the placement box 1, cooperate to install the battery in the placement box 1, so as to achieve the function of battery protection, and cooperate to make the end of the swing plate 42 push the first buckle plate 73, then the first buckle plate 73 and the second buckle plate 76 can be separated, and then the closed cover plate 2 can be unlocked.

[0049] As Figure 5 and Figure 6 Among them, a chute 88 is formed on the inner wall of the closed box 81. A slider 87 for sliding in the chute 88 is fixedly connected to the closed block 83. With the cooperation of the slider 87 and the chute 88, the movement stability of the closed block 83 is ensured, so that it can accurately block the opening of the through groove 82.

[0050] During operation, since existing storage batteries are usually located under the vehicle seat and fixed to the vehicle frame by bolts, when theft occurs, the vehicle seat can be opened and the bolts fixing the battery can be unscrewed to remove the battery. This battery installation method is difficult to play a role in battery anti-theft. At present, most electric vehicle anti-theft alarms use vibration sensors, and this kind of alarm is extremely prone to false alarms, resulting in poor anti-theft effect. In this solution, in the initial state, the first spring 35 will always push up the one-way valve plate 32, so that the one-way valve plate 32 can return to its original position after use and fit with the inner top of the first closed cylinder 31. In the initial state, the second spring 86 will always push the closing block 83, so that the closing block 83 blocks the opening of the through groove 82, and when the air pressure in the closed box 81 increases, the closing block 83 can tightly block the opening of the through groove 82 to achieve the sealing effect. In the initial state, the third spring 96 will always push the second piston rod 94 towards the limit ring 92, so that the second piston rod 94 can return to its original position after the air pressure in the pneumatic component 9 decreases. After the second piston rod 94 returns to its original position, it can drive the copper rod 10 to separate from the hollow copper tube 12, achieving the effect of power-off for the alarm 5;

[0051] During use, after installing the battery in the placement box 1, lock the closing cover plate 2 on the placement box 1. When locking the closing cover plate 2, just flip the closing cover plate 2 and press it on the placement box 1. When the first buckle plate 73 contacts the second buckle plate 76, the second buckle plate 76 will push the first buckle plate 73 towards the fixing plate 71. When the closing cover plate 2 is flipped in place, the locking end of the first buckle plate 73 will be engaged with the second buckle plate 76, thereby locking the closing cover plate 2 on the opening of the placement box 1. While the closing cover plate 2 is closed, the positive copper row 131 will be inserted into the negative copper row 132. At this time, the detection end of the power-off alarm 5 will form a circuit through the positive copper row 131 and the negative copper row 132. Then, press down the first limit plate 34. When the first limit plate 34 moves downward, it will drive the one-way valve plate 32 to move downward. When the one-way valve plate 32 moves downward, it will inject the gas in the first closed cylinder 31 into the closing component 8 through the connecting pipe 36, and under the action of the one-way valve 37, the gas in the closing component 8 and the pneumatic component 9 will be sealed, so that the closing component 8 and the pneumatic component 9 maintain a high-pressure state. When the air pressure in the closed box 81 increases, the closing block 83 will tightly block the through groove 82, so that the gas in the closed box 81 cannot be discharged. And when the air pressure in the fixed pipe 91 increases, it will push the third limit rod 95 to insert the copper rod 10 into the hollow copper tube 12, so as to supply power to the power-off alarm 5 and make the power-off alarm 5 operate normally. When someone pries and damages the closing cover plate 2, when the positive copper row 131 is separated from the negative copper row 132, the power-off alarm 5 will issue an alarm. And when someone uses a tool to pry the lock core component 4, only unlocking the lock component 7 cannot cancel the alarm function of the power-off alarm 5, thereby achieving the function of alarm warning;

[0052] When the battery needs to be repaired or replaced, the key needs to be inserted into the rotary lock cylinder 41, and the rotary lock cylinder 41 is first rotated counterclockwise, so that the end of the swing plate 42 squeezes the rounded edge of the closing block 83, so that the closing block 83 is retracted into the closing box 81, and then the air pressure in the closing component 8 and the pneumatic component 9 is discharged. After the air pressure in the pneumatic component 9 is discharged, the copper rod 10 will separate from the hollow copper tube 12 under the action of the No. 3 spring 96, so as to contact the reserve battery 6 to supply power to the power failure alarm 5, and the warning function of the power failure alarm 5 is released. Then, the rotary lock cylinder 41 is rotated clockwise, so that the end of the swing plate 42 squeezes the No. 1 buckle plate 73 to separate the No. 1 buckle plate 73 from the No. 2 buckle plate 76, and then the closing cover plate 2 can be flipped over and opened from the placement box 1. At this time, when the closing cover plate 2 is opened and drives the positive copper bar 131 and the negative copper bar 132 to separate, the power failure alarm 5 will not sound an alarm;

[0053] The combination achieves the purpose of warning and anti-theft. Compared with traditional battery anti-theft alarms, it has better protection effect, is less likely to be accidentally touched, and has a better warning effect.

[0054] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An anti-theft alarm for an electric vehicle battery, characterized in that: It includes a placement box (1); a closing cover plate (2) is rotatably hinged on the placement box (1), an inflation assembly (3) is arranged on the side wall of the placement box (1), a closing assembly (8) communicated with the inflation assembly (3) is arranged on the inner wall of the placement box (1), a pneumatic assembly (9) communicated with the side of the closing assembly (8) is arranged, a copper rod (10) is installed at the acting end of the pneumatic assembly (9), a hollow copper tube (12) is installed on the inner wall of the placement box (1) through a support rod (11), a power-off alarm (5) and a reserve battery (6) are installed on the outer side wall of the placement box (1), the power supply end of the power-off alarm (5) is connected to the copper rod (10) through a wire, the reserve battery (6) is connected to the hollow copper tube (12) through a wire, and the copper rod (10) is inserted into the hollow copper tube (12) to form a circuit; A lock core assembly (4) is arranged on the closing cover plate (2), a wiring assembly (13) is jointly arranged between the lower part of the closing cover plate (2) and the inner wall of the placement box (1), a lock catch assembly (7) for locking the closing cover plate (2) is jointly arranged between the inner wall of the placement box (1) and the lower part of the closing cover plate (2), and the detection end of the power-off alarm (5) is connected to the wiring assembly (13) through a wire; The closing assembly (8) includes a closing box (81), the closing box (81) is fixedly connected to the inner wall of the placement box (1), a through groove (82) is opened on the closing box (81), a closing block (83) is slidably arranged in the through groove (82), and a rounded edge is arranged on the side of the closing block (83); The lock core assembly (4) includes a rotating lock core (41), the rotating lock core (41) is installed on the closing cover plate (2), a swing plate (42) is fixedly connected under the rotating core of the rotating lock core (41), the rotating track of the end of the swing plate (42) has an intersection with the rounded edge of the closing block (83) and the lock catch assembly (7), and the end of the swing plate (42) can unlock the lock catch assembly (7).

2. The anti-theft alarm for an electric vehicle battery according to claim 1, characterized in that: The wiring assembly (13) includes a positive copper row (131) and a negative copper row (132), the positive copper row (131) is fixedly connected under the closing cover plate (2), the negative copper row (132) is fixedly connected in the opening of the placement box (1), the detection end of the power-off alarm (5) is connected to the positive copper row (131) and the negative copper row (132) respectively through a wire, and the positive copper row (131) and the negative copper row (132) are cooperatively inserted.

3. The anti-theft alarm for an electric vehicle battery according to claim 1, characterized in that: The inflation assembly (3) includes a first closed cylinder (31) fixedly connected to the outer wall of the placement box (1). A one-way valve plate (32) is slidably arranged in the first closed cylinder (31). A first limiting rod (33) is fixedly connected to the one-way valve plate (32). The top end of the first limiting rod (33) penetrates through the first closed cylinder (31) and is fixedly connected to a first limiting plate (34). A first spring (35) is arranged in the first closed cylinder (31) and is located below the one-way valve plate (32). A connecting pipe (36) is fixedly connected to the lower part of the first closed cylinder (31). The end of the connecting pipe (36) penetrates through the placement box (1) and is connected to the closed box (81). A one-way valve (37) is installed on the connecting pipe (36). A protective shell is arranged outside the first closed cylinder (31), the power-off alarm (5) and the reserve battery (6), and the first limiting plate (34) is located above the protective shell. The end of the connecting pipe (36) penetrates through the side wall of the placement box (1) and is connected to the closing assembly (8).

4. The anti-theft alarm for an electric vehicle battery according to claim 1, characterized in that: A hollow shaft (84) is horizontally and fixedly connected in the closed box (81). A telescopic shaft (85) is slidably arranged in the hollow shaft (84). The end of the telescopic shaft (85) is fixedly connected to a closing block (83). The closing block (83) is hermetically arranged in the opening of the through groove (82). A second spring (86) is arranged in the closed box (81), and the second spring (86) is sleeved on the hollow shaft (84) and the telescopic shaft (85) and is located between the inner wall of the closed box (81) and the closing block (83).

5. An anti-theft alarm for an electric vehicle battery according to claim 1, characterized in that: The pneumatic assembly (9) includes a fixed pipe (91) fixedly connected to the side of the closed box (81). A limiting ring (92) is installed in the fixed pipe (91). A breathable plate (93) is fixedly connected to the port of the fixed pipe (91). A piston column (94) is slidably arranged in the fixed pipe (91), and the piston column (94) is located between the breathable plate (93) and the limiting ring (92). A third limiting rod (95) is fixedly connected to the piston column (94). The side of the breathable plate (93) is provided with a through hole, and the third limiting rod (95) penetrates through the through hole opened on the breathable plate (93). A copper rod (10) is fixedly connected to the end of the third limiting rod (95). A third spring (96) is arranged in the fixed pipe (91), and the third spring (96) is located between the breathable plate (93) and the piston column (94).

6. The anti-theft alarm for an electric vehicle battery according to claim 1, characterized in that: The latch assembly (7) includes a fixing plate (71) and a second buckle plate (76). The second buckle plate (76) is fixedly connected to the inner wall of the placement box (1), and the fixing plate (71) is fixedly connected under the closing cover plate (2). Two fourth limiting rods (72) are fixedly connected to the side of the fixing plate (71). A first buckle plate (73) is slidably arranged on the two fourth limiting rods (72). Fourth springs (75) are sleeved on the two fourth limiting rods (72), and the fourth springs (75) are located between the fixing plate (71) and the first buckle plate (73). Second limiting plates (74) are fixedly connected to the ends of the fourth limiting rods (72). The first buckle plate (73) and the second buckle plate (76) are cooperatively buckled together, and the end of the swing plate (42) can push the first buckle plate (73) and the second buckle plate (76) to separate and unlock.

7. An anti-theft alarm for an electric vehicle battery according to claim 1, characterized in that: A chute (88) is formed in the inner wall of the closed box (81), and a slider (87) for sliding in the chute (88) is fixedly connected to the closing block (83).

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