CN117239359A - Multifunctional automobile electrical box - Google Patents

Abstract

The application discloses a multifunctional automobile electrical box, and belongs to the technical field of electrical boxes. The application relates to a multifunctional automobile electrical box, which comprises a box body, wherein a ventilation mechanism is arranged in the box body, the ventilation mechanism comprises a mounting plate, a buffer spring is fixedly arranged at the lower end of the mounting plate, a plurality of placing grooves are formed in the mounting plate, the placing grooves are used for fixing a storage battery, a fixed rod is arranged at the upper side of the inside of the box body, a plurality of driving mechanisms are arranged on the fixed rod, each driving mechanism comprises a reel, a wire is wound outside the reel, a connecting sheet is arranged at the lower end of the wire, a fixing frame is fixedly arranged on the fixed rod, and a tightening mechanism is arranged on the fixing frame.

Description

Multifunctional automobile electrical box

Technical Field

The application relates to the technical field of electric boxes, in particular to a multifunctional automobile electric box.

Background

The automobile electrical box bears the transportation and distribution of the whole automobile power supply, various relays and insurance are arranged on the automobile electrical box, the automobile electrical box is a core component of a whole automobile circuit, and the reliability of the automobile electrical box is closely related to the reliability of the whole automobile circuit.

In the use of the electric box, the electric box is connected with a storage battery after the connecting piece is arranged at the end part of the lead wire, then electric power is transmitted and distributed to other electric appliances, the important parts used as the power transmission and distribution can lead to the power failure of the whole car circuit once being separated from the power supply, and the screw used for connecting the battery and the connecting piece can be loosened after long-time use due to jolt of the car in the transportation or driving process, so that the connecting piece is separated from the battery, at the moment, the electric box is separated from the power supply, the effect of transmitting and distributing the electric power is lost, and the connecting part between the connecting piece and the battery cannot be reinforced when the traditional electric box is used, so that the situation that the connecting piece is separated from the anode and the cathode of the battery is prevented.

In view of the above, the application provides a multifunctional automobile electrical box.

Disclosure of Invention

First, the technical problem to be solved

The application aims to provide a multifunctional automobile electrical box so as to solve the problems in the background technology.

(II) technical scheme

The utility model provides a multifunctional automobile electrical apparatus box, includes the box body, the inside mechanism that takes a breath that is equipped with of box body, the mechanism that takes a breath includes the mounting panel, mounting panel lower extreme fixed has buffer spring, a plurality of standing grooves have been seted up on the mounting panel, the standing groove is fixed the battery, the inside upside of box body is equipped with the dead lever, be equipped with a plurality of driving mechanism on the dead lever, driving mechanism includes the reel, the outside coiling of reel has the wire, the wire lower extreme is equipped with the connection piece, the connection piece passes through the screw and is connected fixedly with the battery, fixed mounting has the mount on the dead lever, be equipped with on the mount and screw up the mechanism.

As an alternative scheme of the technical scheme of the application, the tightening mechanism comprises a rotating rod which is rotationally connected with a fixing frame, a screwdriver head is sleeved on the lower side of the rotating rod, the screwdriver head is in sliding connection with the rotating rod, rotating blocks are rotationally connected on the lower side of the inner part of the screwdriver head and the lower end of the rotating rod, a first spring is arranged between the two rotating blocks, and two ends of the first spring are respectively fixedly connected with the two rotating blocks.

As an alternative scheme of the technical scheme of the application, a gear is sleeved outside the upper side of the rotating rod, a plurality of movable grooves are formed in the inner wall of the gear, a clamping block is slidably arranged in each movable groove, a second spring is fixedly arranged on each clamping block, the other end of each second spring is fixedly connected with the inner wall of each movable groove, one end of each clamping block is of an inclined structure, a plurality of bayonets are formed in the outer wall of the upper side of the rotating rod, the clamping blocks are matched with the bayonets in a clamping mode, and inclined parts on the clamping blocks are in extrusion contact with the inner walls of the bayonets.

As an alternative scheme of the technical scheme of the application, the driving mechanism further comprises a plurality of pawls rotatably connected to the inner wall of the reel, the reel is in meshed transmission with the gear through the pawls, a third spring is fixedly arranged on each pawl, the other end of each third spring is fixedly connected with the reel, a stop block is fixedly arranged on each pawl, and the outer wall of each stop block is in extrusion contact with the reel.

As an alternative scheme of the technical scheme of the application, a cover plate is arranged at the upper end of the box body, fixing mechanisms are respectively arranged at the lower end of the cover plate and the upper end of the connecting sheet, each fixing mechanism comprises two fixing blocks, clamping blocks are slidably arranged on the fixing blocks, extrusion springs are fixedly arranged on the clamping blocks, the other ends of the extrusion springs are fixedly connected with the fixing blocks, the fixing blocks are respectively fixedly connected with the upper end of the connecting sheet and the lower end of the cover plate, and the clamping blocks are in extrusion contact with the outer walls of the wires.

As an alternative scheme of the technical scheme of the application, the outer wall of the reel is fixedly provided with a hook, the winding directions of wires at two sides of the hook are opposite, the inner wall of the reel is fixedly provided with a coil spring, and the other end of the coil spring is fixedly connected with a fixed rod.

As an alternative scheme of the technical scheme of the application, a plurality of first binding posts penetrate through the cover plate, a movable plate is arranged at the upper end of the cover plate, a plurality of second binding posts are arranged at the lower end of the movable plate, and the second binding posts are matched with the first binding posts in size.

As an alternative scheme of the technical scheme of the application, a cavity is formed in the first binding post, an extrusion block is arranged in the cavity, the inner wall of the cavity is of an inclined structure, the outer wall of the extrusion block is in extrusion contact with the inclined part of the inner wall of the cavity, an elastic rope is fixedly arranged at the upper end of the connecting sheet, and the upper end of the elastic rope penetrates through the outer wall of the first binding post, extends into the cavity and is fixedly connected with the lower end of the extrusion block.

As an alternative scheme of the technical scheme of the application, the movable plate is in sliding connection with the cover plate, the upper end of the movable plate is provided with a threaded rod in a penetrating way, the threaded rod is in threaded connection with the movable plate, and the lower side of the threaded rod is in rotary connection with the cover plate.

As an alternative scheme of the technical scheme of the application, a plurality of air outlet holes are formed in the mounting plate, a plurality of air inlet holes are formed in the lower side of the box body, one-way valves are arranged in the air inlet holes and the air outlet holes, gaps are formed in the outer walls of the two sides of the box body in a penetrating manner, and filter screens are arranged in the gaps and the air inlet holes.

(III) beneficial effects

Compared with the prior art, the application has the advantages that:

according to the application, the screw on the battery can be automatically screwed by the screwing mechanism in the transportation process or the use process, so that the situation that the connecting sheet is separated from the battery to lose the conductive effect or the connecting sheet is separated from contact with other electrodes to cause short circuit due to loosening of the screw caused by bumping is avoided, and the safety of the battery in the use process is ensured.

According to the application, the mounting plate and the buffer spring can effectively play a role in buffering in the use process of the device, damage caused by overlarge battery bumping amplitude is avoided, and meanwhile, external air can be conveyed into the box body in the process of shaking the mounting plate up and down, so that the circulation of the air in the box body is increased, the cooling effect is effectively achieved, and the condition that the heat is overhigh due to continuous operation of the battery is avoided.

The driving mechanism can automatically drive the tightening mechanism to work when the battery shakes, is simple and convenient to use, and can continuously twist the screw, so that the screw is always kept in a relatively stable state.

According to the application, the first binding post and the second binding post are tightly attached through the arranged extrusion block matched with the first binding post, the situation that poor contact occurs due to gaps is avoided, and the normal power supply of a battery is influenced, wherein the moving plate can separate the first binding post from the second binding post after moving, so that when a storage battery is not required to work in the transportation process, a circuit break is formed, and the excessive electric quantity loss of the storage battery caused by the fact that a circuit is in a passage state in the transportation process is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic diagram of the overall structure of the present application.

Fig. 2 is a schematic view of the internal structure of the case of the present application.

FIG. 3 is a schematic view of a mounting plate according to the present application.

Fig. 4 is a schematic view of the structure of the screw and the connecting piece part of the application.

FIG. 5 is a schematic view of a portion of the screwdriver bit according to the present application.

Fig. 6 is a schematic view of the structure of the clamping plate part of the application.

Fig. 7 is a schematic view of a portion of the structure of a coil spring of the present application.

FIG. 8 is a schematic view of a portion of the pawl and stop of the present application.

Fig. 9 is a schematic view of a portion of a rotating rod and a rotating block according to the present application.

Fig. 10 is a schematic view of the first terminal and the second terminal according to the present application.

The reference numerals in the figures illustrate:

1. a case body; 2. a ventilation mechanism; 3. a mounting plate; 4. a buffer spring; 5. a placement groove; 6. a fixed rod; 7. a driving mechanism; 8. a reel; 9. a wire; 10. a connecting sheet; 11. a screw thread nail; 12. a fixing frame; 13. a tightening mechanism; 14. a rotating lever; 15. a screwdriver bit; 16. a rotating block; 17. a first spring; 18. a gear; 19. a movable groove; 20. a clamping block; 21. a second spring; 22. a bayonet; 23. a pawl; 24. a third spring; 25. a stop block; 26. a cover plate; 27. a fixing mechanism; 28. a fixed block; 29. clamping blocks; 30. extruding a spring; 31. a hook; 32. a coil spring; 33. a first terminal; 34. a moving plate; 35. a second binding post; 36. a cavity; 37. extruding a block; 38. an elastic rope; 39. a threaded rod; 40. an air outlet hole; 41. an air inlet hole; 42. a one-way valve; 43. a notch; 44. and (5) a filter screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Examples: referring to fig. 1-10, a multifunctional automobile electrical box comprises a box body 1, wherein a ventilation mechanism 2 is arranged in the box body 1, the ventilation mechanism 2 comprises a mounting plate 3, a buffer spring 4 is fixedly arranged at the lower end of the mounting plate 3, a plurality of placing grooves 5 are formed in the mounting plate 3, the placing grooves 5 fix a storage battery, a fixing rod 6 is arranged on the upper side of the inside of the box body 1, a plurality of driving mechanisms 7 are arranged on the fixing rod 6, the driving mechanisms 7 comprise a winding wheel 8, a wire 9 is wound outside the winding wheel 8, a connecting sheet 10 is arranged at the lower end of the wire 9, the connecting sheet 10 is fixedly connected with the storage battery through a screw 11, a fixing frame 12 is fixedly arranged on the fixing rod 6, and a screwing mechanism 13 is arranged on the fixing frame 12.

Specifically, the tightening mechanism 13 includes the dwang 14 that rotates with mount 12 to be connected, dwang 14 downside cover is equipped with screwdriver bit 15, dwang 14 can drive screwdriver bit 15 rotation, screwdriver bit 15 and dwang 14 sliding connection, screwdriver bit 15 can take place to move relative dwang 14, the inside downside of screwdriver bit 15 and dwang 14 lower extreme all rotate and are connected with dwang 16, be equipped with first spring 17 between two dwang 16, first spring 17 both ends respectively with two dwang 16 fixed connection, first spring 17 can extrude two dwang 16.

Further, the gear 18 is sleeved outside the upper side of the rotating rod 14, a plurality of movable grooves 19 are formed in the inner wall of the gear 18, clamping blocks 20 are slidably mounted in the movable grooves 19, the clamping blocks 20 can move along the direction of the movable grooves 19 and can shrink into the movable grooves 19, a second spring 21 is fixedly mounted on the clamping blocks 20, the second spring 21 can extrude the clamping blocks 20, the other end of the second spring 21 is fixedly connected with the inner wall of the movable grooves 19, one end of the clamping blocks 20 is of an inclined structure, a plurality of bayonets 22 are formed in the outer wall of the upper side of the rotating rod 14, the clamping blocks 20 are matched with the bayonets 22 in a clamping mode, the clamping blocks 20 can be clamped with the bayonets 22, and when the gear 18 rotates, the clamping blocks 20 can extrude the bayonets 22 to enable the rotating rod 14 to rotate, when the rotating rod 14 cannot rotate, the clamping blocks can shrink into the movable grooves 19, and inclined parts on the clamping blocks 20 are in extrusion contact with the inner walls of the bayonets 22.

Furthermore, the driving mechanism 7 further comprises a plurality of pawls 23 rotatably connected to the inner wall of the reel 8, the reel 8 is in meshed transmission with the gear 18 through the pawls 23, the reel 8 can drive the pawls 23 to revolve when rotating, the gear 18 can be driven to rotate through the meshing of the pawls 23 and the gear 18, a third spring 24 is fixedly installed on the pawls 23, the other end of the third spring 24 is fixedly connected with the reel 8, a stop block 25 is fixedly installed on the pawls 23, the stop block 25 can limit the position of the pawls 23, the third spring 24 is prevented from being damaged when the pawls 23 are meshed with the gear 18, the elastic force of the third spring 24 only needs to squeeze the pawls 23 to enable the pawls 23 to be meshed with the gear 18 when moving towards one direction, and the outer wall of the stop block 25 is in extrusion contact with the reel 8.

It should be noted that, cover plate 26 is installed to box body 1 upper end, cover plate 26 lower extreme and connection piece 10 upper end all are equipped with fixed establishment 27, fixed establishment 27 includes two fixed blocks 28, slidable mounting has clamp splice 29 on the fixed block 28, fixed mounting has extrusion spring 30 on the clamp splice 29, extrusion spring 30 can extrude clamp splice 29 to utilize clamp splice 29 to press from both sides wire 9, extrusion spring 30 other end and fixed block 28 fixed connection, fixed block 28 respectively with connection piece 10 upper end and cover plate 26 lower extreme fixed connection, clamp splice 29 and wire 9 outer wall extrusion contact.

In addition, the outer wall of the reel 8 is fixedly provided with a hook 31, the reel 8 can push the wire 9 through the hook 31 when rotating, the winding directions of the wires 9 at two sides of the hook 31 are opposite, the inner wall of the reel 8 is fixedly provided with a coil spring 32, the other end of the coil spring 32 is fixedly connected with the fixed rod 6, and when the wire 9 is not tensioned, the coil spring 32 can drive the reel 8 to reversely rotate under the action of self elastic force, so that the wire 9 is rewound outside the reel 8.

It is noted that the cover plate 26 is provided with a plurality of first binding posts 33, the upper end of the cover plate 26 is provided with a moving plate 34, the lower end of the moving plate 34 is provided with a plurality of second binding posts 35, the second binding posts 35 are matched with the first binding posts 33 in size, and the second binding posts 35 can be sleeved on the upper sides of the first binding posts 33 after being lowered.

Besides, the cavity 36 is formed in the first binding post 33, the extrusion block 37 is arranged in the cavity 36, the inner wall of the cavity 36 is of an inclined structure, the outer wall of the extrusion block 37 is in extrusion contact with the inclined part of the inner wall of the cavity 36, the extrusion block 37 can extrude the inner wall of the cavity 36 in the descending process, the elastic rope 38 is fixedly arranged at the upper end of the connecting sheet 10, the connecting sheet 10 can pull the extrusion block 37 through the elastic rope 38 when being descended, and the upper end of the elastic rope 38 penetrates through the outer wall of the first binding post 33 to extend into the cavity 36 and is fixedly connected with the lower end of the extrusion block 37.

The moving plate 34 is slidably connected with the cover plate 26, a threaded rod 39 is disposed at the upper end of the moving plate 34, the threaded rod 39 is in threaded connection with the moving plate 34, the lower side of the threaded rod 39 is rotationally connected with the cover plate 26, and the moving plate 34 can move relative to the cover plate 26 after the threaded rod 39 is rotated.

On the basis of the scheme, the mounting plate 3 is provided with the plurality of air outlet holes 40, the lower side of the inner part of the box body 1 is provided with the plurality of air inlet holes 41, the air inlet holes 41 and the air outlet holes 40 are internally provided with the one-way valves 42, only one of the air inlet holes 41 and the one-way valves 42 in the air outlet holes 40 can be in an open state at the same time, the outer walls of the two sides of the box body 1 are provided with the notch 43 in a penetrating way, the notch 43 and the air inlet holes 41 are internally provided with the filter screen 44, and the filter screen 44 can filter dust and sundries outside.

Working principle: when the device is used, the cover plate 26 is opened to place the storage battery in the placing groove 5 on the mounting plate 3, then the storage battery is fixed to be stably mounted on the mounting plate 3, then the connecting piece 10 is mounted on the storage battery by the threaded nails 11, when the device is in a process of transportation or use, the shaking can occur, so that the mounting plate 3 and the storage battery can shake up and down, when the storage battery descends, the connecting piece 10 can be driven by the connecting piece 10 and the threaded nails 11 to descend, at the moment, the connecting piece 10 descends to drive the fixing block 28 and the extruding block 37 to descend, the extruding block 37 can be pulled to the lower side of the lead 9, so that the lead 9 can be used for driving the winding wheel 8 to rotate, the winding wheel 8 can be used for driving the pawl 23 to rotate after rotating, the teeth on the gear 18 can be pushed when the pawl 23 rotates, so that the gear 18 rotates, the gear 18 can squeeze the inner wall of the bayonet 22 through a plurality of clamping blocks 20 on the inner wall of the gear 18 when rotating, the rotating rod 14 can rotate after the screw 11 of the fixed connecting sheet 10 is loosened, the rotating rod 14 can drive the screwdriver bit 15 on the outer side of the rotating rod to rotate after rotating, the screwdriver bit 15 can drive the screw to rotate after rotating, so that the screw is screwed again, when the screw is in a screwing state, the gear 18 continuously rotates to drive the clamping blocks 20 to rotate, the clamping blocks 20 can shrink inwards the movable groove 19 under the action of the extrusion force of the inner wall of the bayonet 22, so that the gear 18 rotates relative to the rotating rod 14, the screwdriver bit 15 and the rotating rod 14 can keep still under the blocking of the screw, wherein the first spring 17 can squeeze the two rotating blocks 16, so that the two rotating blocks 16 have relative motion trend, so that the screwdriver bit 15 can always be attached to the upper side of the screw when the connecting piece 10 moves up and down, the screw can be driven to rotate when the connecting piece 10 rotates at any position, when the connecting piece 10 rises and does not pull the wire 9, at the moment, the coil spring 32 can enable the reel 8 to rotate under the action of self elastic force, the wire 9 can be wound on the reel 8 again through the hook 31 when the reel 8 rotates, the rotating of the reel 8 can drive the pawl 23 to reversely rotate, at the moment, the pawl 23 can rotate under the blocking of teeth on the gear 18 and does not mesh with the gear 18, at the moment, the gear 18 can not be driven to rotate, wherein when the connecting piece 10 descends, the elastic rope 38 can be pulled, after the elastic rope 38 is pulled, the extruding block 37 can be pulled, so that the extruding block 37 has a downward movement trend, the extruding block 37 can extrude the inner wall of the cavity 36 when moving downwards, so that the first binding post 33 has a tendency to expand and thus to be tightly attached to the second binding post 35, wherein the one-way valve 42 in the air outlet hole 40 is in a closed state during the ascending of the mounting plate 3, and the one-way valve 42 in the air inlet hole 41 can be opened after the pressure between the mounting plate 3 and the box body 1 changes, thereby sucking the external air between the lower side of the mounting plate 3 and the box body 1, the one-way valve 42 in the air inlet hole 41 can be closed when the mounting plate 3 descends, and the one-way valve 42 in the air outlet hole 40 can be opened under the pressure, at this time, the air flows to the upper side of the mounting plate 3 through the air outlet hole 40 and flows out of the notch 43, thereby radiating the heat from the storage battery, wherein the moving plate 34 ascends relative to the cover plate 26 by rotating the threaded rod 39 when the storage battery is not required during the transportation, the second binding post 35 is separated from the first binding post 33 after the moving plate 34 is lifted, so that a circuit is broken, and excessive loss of the electric quantity of the storage battery caused by the fact that the circuit is in a passage state during transportation is avoided.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. The utility model provides a multifunctional automobile electrical apparatus box, includes box body (1), its characterized in that: the novel storage battery box is characterized in that the ventilation mechanism (2) is arranged inside the box body (1), the ventilation mechanism (2) comprises a mounting plate (3), a buffer spring (4) is fixedly arranged at the lower end of the mounting plate (3), a plurality of placing grooves (5) are formed in the mounting plate (3), the placing grooves (5) are used for fixing a storage battery, a fixing rod (6) is arranged on the upper side of the inside of the box body (1), a plurality of driving mechanisms (7) are arranged on the fixing rod (6), the driving mechanisms (7) comprise a reel (8), a wire (9) is wound outside the reel (8), a connecting sheet (10) is arranged at the lower end of the wire (9), the connecting sheet (10) is fixedly connected with the storage battery through a threaded nail (11), a fixing frame (12) is fixedly arranged on the fixing rod (6), and a screwing mechanism (13) is arranged on the fixing frame (12).

2. The utility model provides a multi-functional car electrical box according to claim 1 which characterized in that: the screwing mechanism (13) comprises a rotating rod (14) rotationally connected with a fixing frame (12), a screwdriver head (15) is sleeved on the lower side of the rotating rod (14), the screwdriver head (15) is slidably connected with the rotating rod (14), rotating blocks (16) are rotationally connected to the lower side inside the screwdriver head (15) and the lower end of the rotating rod (14), a first spring (17) is arranged between the two rotating blocks (16), and two ends of the first spring (17) are fixedly connected with the two rotating blocks (16) respectively.

3. The utility model provides a multi-functional car electrical box according to claim 2 which characterized in that: the utility model discloses a rotary rod, including pivoted lever (14), pivoted lever (14) upside outside cover is equipped with gear (18), a plurality of movable grooves (19) have been seted up to gear (18) inner wall, movable groove (19) inside slidable mounting has fixture block (20), fixed mounting has second spring (21) on fixture block (20), second spring (21) other end and movable groove (19) inner wall fixed connection, fixture block (20) one end is the slope column structure, a plurality of bayonet sockets (22) have been seted up to pivoted lever (14) upside outer wall, fixture block (20) and bayonet socket (22) joint cooperation, the slope portion on fixture block (20) and bayonet socket (22) inner wall extrusion contact.

4. A utility vehicle electrical box according to claim 3, characterized in that: the driving mechanism (7) further comprises a plurality of pawls (23) which are rotatably connected to the inner wall of the reel (8), the reel (8) is in meshed transmission with the gear (18) through the pawls (23), a third spring (24) is fixedly installed on the pawls (23), the other end of the third spring (24) is fixedly connected with the reel (8), a stop block (25) is fixedly installed on the pawl (23), and the outer wall of the stop block (25) is in extrusion contact with the reel (8).

5. The utility model provides a multi-functional car electrical box according to claim 4, characterized in that: the novel plastic box is characterized in that a cover plate (26) is arranged at the upper end of the box body (1), fixing mechanisms (27) are arranged at the lower end of the cover plate (26) and the upper end of the connecting sheet (10), each fixing mechanism (27) comprises two fixing blocks (28), clamping blocks (29) are slidably arranged on the fixing blocks (28), compression springs (30) are fixedly arranged on the clamping blocks (29), the other ends of the compression springs (30) are fixedly connected with the fixing blocks (28), the fixing blocks (28) are fixedly connected with the upper end of the connecting sheet (10) and the lower end of the cover plate (26) respectively, and the clamping blocks (29) are in extrusion contact with the outer walls of the wires (9).

6. The utility model provides a multi-functional car electrical box according to claim 5 which characterized in that: the winding device is characterized in that a hook (31) is fixedly arranged on the outer wall of the winding wheel (8), winding directions of wires (9) on two sides of the hook (31) are opposite, a coil spring (32) is fixedly arranged on the inner wall of the winding wheel (8), and the other end of the coil spring (32) is fixedly connected with a fixed rod (6).

7. The utility model provides a multi-functional car electrical box according to claim 6, characterized in that: the cover plate (26) is provided with a plurality of first binding posts (33) in a penetrating mode, the upper end of the cover plate (26) is provided with a moving plate (34), the lower end of the moving plate (34) is provided with a plurality of second binding posts (35), and the second binding posts (35) are matched with the first binding posts (33) in size.

8. The utility model provides a multi-functional car electrical box according to claim 7, characterized in that: the novel anti-theft device is characterized in that a cavity (36) is formed in the first binding post (33), an extrusion block (37) is arranged in the cavity (36), the inner wall of the cavity (36) is of an inclined structure, the outer wall of the extrusion block (37) is in extrusion contact with the inclined part of the inner wall of the cavity (36), an elastic rope (38) is fixedly arranged at the upper end of the connecting piece (10), and the upper end of the elastic rope (38) penetrates through the outer wall of the first binding post (33) to extend into the cavity (36) and is fixedly connected with the lower end of the extrusion block (37).

9. The utility model provides a multi-functional car electrical box according to claim 8, characterized in that: the movable plate (34) is in sliding connection with the cover plate (26), a threaded rod (39) penetrates through the upper end of the movable plate (34), the threaded rod (39) is in threaded connection with the movable plate (34), and the lower side of the threaded rod (39) is in rotary connection with the cover plate (26).

10. The utility model provides a multi-functional car electrical box according to claim 9, characterized in that: a plurality of air outlet holes (40) are formed in the mounting plate (3), a plurality of air inlet holes (41) are formed in the lower side of the inside of the box body (1), one-way valves (42) are arranged in the air inlet holes (41) and the air outlet holes (40), gaps (43) are formed in the outer walls of the two sides of the box body (1) in a penetrating mode, and filter screens (44) are arranged in the gaps (43) and the air inlet holes (41).