A new mobile trailer device

Abstract

A new mobile trailer device, comprising a vehicle body and a storage box; the vehicle body is provided with an outwardly opening charging cabin, a charging socket electrically connected with a power supply unit provided with the vehicle body is arranged in the charging cabin, and a cabin cover for opening or closing the opening of the charging cabin is further installed on the vehicle body; the storage box is installed in the charging cabin and is used for storing keys, and the storage box is covered in when the cabin cover closes the opening of the charging cabin; wherein, by setting the storage box to place the keys, the keys can be prevented from falling and being lost, and the design that the storage box is located in the charging cabin and is covered by the cabin cover can confuse the judgment of passers-by and prevent passers-by from learning the position of the keys; therefore, compared with the prior art, the scheme can temporarily secretly store the keys, prevent the keys from being lost and stolen, and ensure that the mobile trailer device can be normally handed over and reduce the risk of being stolen.

Description

Technical Field

[0001] This utility model belongs to the technical field of trailer equipment, and in particular relates to a new type of mobile trailer equipment. Background Technology

[0002] Mobile trailer equipment is a vehicle-mounted device that can store various energy types such as light energy and electrical energy and is used as an energy output terminal. It can be moved by being towed by a car. It is used in complex and variable environments and has strong cross-regional mobility. It is widely used for temporary power supply in scenarios such as traffic indication, engineering rescue, mobile lighting, and emergency monitoring.

[0003] Most existing mobile trailer equipment is centrally managed by enterprises or government units. Because the management personnel are not fixed, the keys also need to be transferred and handed over along with the vehicle; for example... Figure 1 As shown, to prevent keys from being dropped or lost, a simple storage box is usually installed on the outside of the vehicle for temporary storage, so that the next manager can access it to complete the handover. However, this practice makes it easy for the location of the keys to be known, and criminals may damage the storage box to steal the keys. This not only affects the normal handover of the mobile trailer equipment but also poses a risk of theft, making it difficult to guarantee the safety of property. Therefore, there is an urgent need to design a new type of mobile trailer equipment to solve this problem. Utility Model Content

[0004] Technical problems to be solved

[0005] This invention provides a novel mobile trailer device that can temporarily and discreetly store keys to prevent loss or theft, thereby ensuring proper handover of the mobile trailer device and reducing the risk of theft.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel mobile trailer includes a vehicle body and a storage box; the vehicle body has an outwardly opening charging compartment, and the charging compartment is equipped with a charging port electrically connected to the power supply unit built into the vehicle body; the vehicle body is also equipped with a cover for opening or closing the opening of the charging compartment; the storage box is installed in the charging compartment and is used to store keys, and the cover covers the storage box when the opening of the charging compartment is closed.

[0009] Preferably, the top of the hatch is rotatably connected to the inner side wall of the charging compartment, so that the hatch can be flipped to open or close the charging compartment opening.

[0010] Preferably, the bottom of the hatch is provided with a rocker plate, and when the hatch is flipped to close the charging compartment opening, there is a gap between the rocker plate and the charging compartment.

[0011] Preferably, the bottom wall of the charging compartment extends outward and slopes downward to connect the gap.

[0012] Preferably, it also includes a locking mechanism that can lock or unlock the cover when the cover is flipped to close the charging compartment opening.

[0013] Preferably, the hatch has a through hole, and the locking device includes a combination lock and a buckle. The buckle is disposed at the opening of the charging compartment and fixed to the vehicle body. The buckle can pass through the through hole as the hatch is flipped, and the locking beam of the combination lock can pass through the buckle to lock the hatch.

[0014] Preferably, the storage box is a combination lock box with a locking function.

[0015] Preferably, a tow arm is also hinged to the vehicle body, a trailer connector is installed on the tow arm, and the tow arm has a first position folded onto the vehicle body and a second position unfolded detached from the vehicle body.

[0016] Preferably, it also includes a limiting part installed on the vehicle body, which can fix or release the traction arm when the traction arm is in the first position.

[0017] Preferably, the limiting part includes a latch and a latch, the latch being mounted on the traction arm; the latch is mounted on the vehicle body and has a drive rod; wherein, when the traction arm is adjusted to the first position, the latch can be inserted into the latch and locked, and swinging the drive rod can cause the latch to release the latch.

[0018] Preferably, the latch lock includes a base, a locking rod, and a swing hook; the base is mounted on the vehicle body, and the base has a movable cavity inside, with an insertion port on the side wall of the movable cavity for connecting to the outside; the locking rod is rotatably mounted in the movable cavity, and the locking rod has a locking head with a protrusion; the drive rod is rotatably mounted in the movable cavity, and the first end of the drive rod has a notch for hooking the protrusion, while the tail end of the drive rod passes through the movable cavity to the outside; two swing hooks are provided and rotatably mounted on both sides of the insertion port, and the front sides of the two swing hooks surround each other to form a clamping mouth corresponding to the latch post, and the rear sides of the two swing hooks surround each other to form a clamping mouth corresponding to the locking head; a coil spring assembly is also provided in the movable cavity, the coil spring assembly... The spring assembly includes a first coil spring and a second coil spring. The first coil spring is installed at the rotatable connection between the locking rod and the base, and the second coil spring is installed at the rotatable connection between the swing hook and the base. If the drive rod is moved to drive the locking rod to swing and cause the locking head to disengage from the locking slot, the first coil spring deforms and stores energy, while the second coil spring releases energy and restores its original state, driving the two swing hooks away from each other and causing the clamping slot to expand. After the buckle enters the clamping slot, it can simultaneously abut against the inner side of the two swing hooks to drive the two swing hooks to move closer together and cause the clamping slot to shrink to fix the buckle. When the drive rod is released, the first coil spring releases energy and restores its original state to drive the locking rod to swing and cause the locking head to re-engage with the locking slot, thereby locking the two swing hooks.

[0019] Preferably, the coil spring assembly further includes a third coil spring, which is installed at the rotatable connection between the drive rod and the base, and the third coil spring deforms and stores energy when the drive rod is swung.

[0020] Preferably, the traction arm is also equipped with a rotatable auxiliary wheel, and when the traction arm is in the second position, the auxiliary wheel is in contact with the ground.

[0021] Preferably, the auxiliary wheel is a trailer outrigger guide wheel with a first rotation position and a second rotation position. When the towing arm is in the first position, the auxiliary wheel can rotate to the first rotation position and be parallel to the towing arm and in the same straight direction. When the towing arm is in the second position, the auxiliary wheel can rotate to the second rotation position and be perpendicular to the towing arm and in contact with the ground.

[0022] Preferably, the bottom of the vehicle body is also equipped with a height-adjustable telescopic support foot, which extends to touch the ground.

[0023] (III) Beneficial Effects

[0024] This utility model provides a novel mobile trailer device. By setting up a storage box to hold the key, it can prevent the key from being dropped or lost. The design of the storage box being located inside the charging compartment and covered by the compartment cover can also confuse passersby and prevent them from knowing the location of the key. Therefore, this solution can temporarily and secretly store the key to prevent it from being lost or stolen, thus ensuring the normal handover of the mobile trailer device and reducing the risk of theft. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 A schematic diagram of the overall structure of the prior art is shown;

[0027] Figure 2 A schematic diagram of the overall structure of this utility model is shown. Figure 1 ;

[0028] Figure 3 A schematic diagram of the overall structure of this utility model is shown. Figure 2 ;

[0029] Figure 4 It shows Figure 3 The main view;

[0030] Figure 5 It shows Figure 4 Sectional view AA;

[0031] Figure 6 A schematic diagram of the overall structure of this utility model is shown. Figure 3 ;

[0032] Figure 7 A schematic diagram of the overall structure of this utility model is shown. Figure 4 ;

[0033] Figure 8 A schematic diagram of the structure of the latch lock of this utility model is shown;

[0034] Figure 9 It shows Figure 8 A schematic diagram of the decomposition process;

[0035] Figure 10 The diagram shows the usage status of the latch lock and latch post of this utility model.

[0036] In the diagram: 1. Vehicle body, 11. Charging compartment, 12. Charging port, 13. Cover, 130. Gap, 131. Rocker arm, 132. Through hole, 14. Traction arm, 141. Trailer connector, 142. Auxiliary wheel, 15. Support foot, 16. Solar circuit board, 2. Storage box, 3. Lock, 31. Combination lock, 32. Buckle, 4. Limiting part, 41. Hook and latch lock, 410. Base, 4101. Movable cavity, 4102. Socket, 4111. Locking rod, 4111. Protrusion, 4112. Locking head, 412. Swing hook, 4121. Clamp, 4122. Locking slot, 413. Drive rod, 4131. Notch, 42. Snap post, 5. Spring assembly, 51. First spring, 52. Second spring, 53. Third spring. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit this application. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0038] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. The terms "center," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] See appendix Figure 1 -Appendix Figure 5A novel mobile trailer device includes a vehicle body 1 and a storage box 2. The vehicle body 1 is provided with an outwardly opening charging compartment 11, and the charging compartment 11 is provided with a charging port 12 that is electrically connected to the power supply unit (not shown in the figure) built into the vehicle body 1. The vehicle body 1 is also equipped with a cover 13 for opening or closing the opening of the charging compartment 11. The storage box 2 is installed in the charging compartment 11 and is used to store keys (not shown in the figure). When the cover 13 closes the opening of the charging compartment 11, it covers the storage box 2.

[0040] Specifically, after using the mobile trailer equipment, the manager can open the hatch 13 and the storage box 2 in sequence, place the key in the storage box 2, and then close the storage box 2 and the hatch 13 in sequence to hide the key in the charging compartment 11. This stores the key while preventing its exposure and ensuring the security of key handover. When the next manager takes over the mobile trailer equipment, they can open the hatch 13 and the storage box 2 in sequence to take out the key directly for use. Therefore, placing the key on the vehicle body 1 makes it easy for the manager to access and improves convenience.

[0041] In summary, this utility model, by setting up a storage box 2 to hold the key, can prevent the key from being dropped or lost. The design of the storage box 2 being located inside the charging compartment 11 and covered by the compartment cover 13 can also confuse passersby and prevent them from knowing the location of the key. Therefore, this solution can temporarily and secretly store the key, prevent the key from being lost or stolen, ensure the normal handover of the mobile trailer equipment, reduce the risk of theft, and protect property security.

[0042] It should be noted that the mobile trailer equipment is an existing device. Its built-in power supply unit mainly includes a circuit board (not shown in the figure) and a battery (not shown in the figure). The circuit board connects the charging port 12 and the battery to charge the battery through the charging port 12. The circuit board can also be connected to a solar circuit board 16 installed on the vehicle body 1 to charge the battery, or to supply power to external devices through wires. The relevant technologies are relatively conventional in the field, so they will not be described in detail in this utility model.

[0043] On the other hand, the key can be used to open a locked compartment (not shown in the figure) on the vehicle body 1 or to open the door and start the car (not shown in the figure). The key can be a conventional mechanical key, a remote control key, or a card key. Since there are many types of keys, this utility model does not limit them. In addition, this utility model does not limit the specific type of vehicle body 1. If the charging compartment 11, the cover 13, and the password box are used in other vehicle bodies 1 with power supply units and charging ports 12 and achieve the same function, they should also fall within the protection scope of this application.

[0044] In addition to storing keys, the storage box 2 can also be used to temporarily store other items that need to be handed over together. This utility model does not limit the use of the storage box.

[0045] See appendix Figure 2 -Appendix Figure 6 The top of the cover 13 is rotatably connected to the inner side wall of the charging compartment 11. By holding the bottom of the cover 13 and flipping it over, the opening of the charging compartment 11 can be opened or closed.

[0046] It should be noted that, in addition to the rotational connection, the hatch 13 and the vehicle body 1 can also be connected by a sliding connection to open or close the charging compartment 11 opening. Since there are various related methods, this utility model does not limit this.

[0047] See appendix Figure 2 -Appendix Figure 6 The bottom of the cover 13 is provided with a rocker plate 131. When the cover 13 is flipped to close the opening of the charging compartment 11, there is a gap 130 between the rocker plate 131 and the charging compartment 11.

[0048] Specifically, by inserting some fingers into the gap 130 and contacting the inner wall of the rocker 131, pressure can be applied to the bottom of the cover 13 to flip the cover 13 and open the charging compartment 11. Therefore, the rocker 131 provides a point of leverage for the cover 13, making it easier for managers to swing and flip the cover 13, thus improving ease of use.

[0049] See appendix Figure 2 -Appendix Figure 6 The bottom wall of the charging chamber 11 extends outward and slopes downward to connect with the gap 130. This design allows water that accidentally enters the charging chamber 11 to be discharged to the outside through the gap 130 under the action of gravity.

[0050] See appendix Figure 4 -Appendix Figure 5 The present invention also includes a lock 3. When the cover 13 is flipped to close the opening of the charging compartment 11, the lock 3 can lock or release the cover 13. This design can prevent passers-by from opening the charging compartment 11 at will, so that the key placed in the storage box 2 has double protection, namely, concealment protection and physical locking protection, thereby improving the security of key storage.

[0051] See appendix Figure 2 -Appendix Figure 6 The hatch 13 has a through hole 132. The lock 3 includes a combination lock 31 and a buckle 32. The buckle 32 is located at the opening of the charging compartment 11 and is fixed to the vehicle body 1. The buckle 32 can pass through the through hole 132 as the hatch 13 is flipped. The lock beam of the combination lock 31 can pass through the buckle 32 to lock the hatch 13.

[0052] The combination lock 31 is designed to allow managers to directly enter the password to release the lock beam from the buckle 32, enabling managers to lock or open the hatch 13 at any time, thus improving ease of use while ensuring the security of key storage.

[0053] It should be noted that the combination lock 31 is an existing product, so its specific structure will not be described in this utility model; on the other hand, the combination lock 31 can also be replaced by electronic locks such as fingerprint locks and voice locks (not shown in the figure), and this utility model does not limit this.

[0054] See appendix Figure 3 -Appendix Figure 4 Storage box 2 is a combination lock box with locking function. After opening the cover 13, the manager needs to enter the correct password to open the combination lock box and take out the key. This design also provides an extra layer of protection for the key, ensuring that even if criminals open the cover 13, they cannot take out the key, thus ensuring the safety of property. The combination lock box is an existing product, so its specific structure will not be described in this utility model.

[0055] See appendix Figure 1 -Appendix Figure 7 The vehicle body 1 is also hinged to a towing arm 14, on which a trailer connector 141 is installed. The towing arm 14 has a first position folded onto the vehicle body 1 and a second position unfolded detached from the vehicle body 1.

[0056] Specifically, such as Figure 1 As shown, although the existing mobile trailer equipment has a towing arm 14 on the vehicle body 1, the position of the towing arm 14 is fixed, which increases the volume of the vehicle body 1 and causes the vehicle body 1 to occupy a large space when not in use. In this solution, under normal circumstances, the towing arm 14 is in the first position to reduce the volume of the vehicle body 1 and reduce the space occupied by the vehicle body 1. When in use, the towing arm 14 is switched to the second position, and the vehicle and the vehicle body 1 are connected through the trailer connector 141, so that the vehicle body 1 can be transferred to a suitable location for operation with the help of the vehicle.

[0057] See appendix Figure 7 -Appendix Figure 8 The present invention also includes a limiting part 4 installed on the vehicle body 1. When the traction arm 14 is in the first position, the limiting part 4 can fix or release the traction arm 14. Therefore, the design of the limiting part 4 can fix the traction arm 14 in the first position, thereby improving the placement stability of the traction arm 14.

[0058] See appendix Figure 7 -Appendix Figure 8The structure of the limiting part 4 is varied, and not all of them are listed or limited in this utility model. For ease of understanding, in this embodiment, the limiting part 4 includes a latch lock 41 and a latch post 42. The latch post 42 is installed on the traction arm 14. The latch lock 41 is installed on the vehicle body 1 and has a drive rod 413. When the traction arm 14 is adjusted to the first position, the latch post 42 can be inserted into the latch lock 41 and locked to limit the swing of the traction arm 14. The swing drive rod 413 can drive the latch lock 41 to release the latch post 42 to release the restriction on the traction arm 14.

[0059] See appendix Figure 7 -Appendix Figure 10 The latch lock 41 is an existing product with various models and types, therefore this utility model does not limit it. For ease of understanding, in this embodiment, the latch lock 41 includes a base 410, a locking rod 411, and a swing hook 412; the latch post 42 is mounted on the traction arm 14; the base 410 is mounted on the vehicle body 1, and the base 410 has a movable cavity 4101 inside, and the side wall of the movable cavity 4101 has an insertion port 4102 for connecting to the outside; the locking rod 411 is rotatably mounted in the movable cavity 4101, and the locking rod 411 has a locking head 4112 with a protrusion 4111; the drive rod 413 is rotatably mounted in the movable cavity 4101, and the head of the drive rod 413 has a... The notch 4131 of the hook protrusion 4111 is connected to the drive rod 413, which passes through the movable cavity 4101 to the outside. There are two swing hooks 412, which are rotatably installed on both sides of the insertion port 4102. The front sides of the two swing hooks 412 surround each other to form a clamping mouth 4121 corresponding to the buckle 42, and the rear sides of the two swing hooks 412 surround each other to form a clamping mouth 4122 corresponding to the clamp head 4112. The movable cavity 4101 is also provided with a coil spring assembly 5, which includes a first coil spring 51 and a second coil spring 52. The first coil spring 51 is installed at the rotatable connection between the clamp rod 411 and the base 410, and the second coil spring 52 is installed at the rotatable connection between the swing hook 412 and the base 410.

[0060] Specifically, when the traction arm 14 is in the first position, the clamp 4121 clamps and fixes the buckle 42 inside, thus locking the traction arm 14. At this time, the second coil spring 52 deforms and stores energy, and the locking block 4112 of the locking rod 411 is inserted into the locking slot 4122 to prevent the two swing hooks 412 from expanding relative to each other and causing the buckle 42 to disengage from the clamp 4121. When the drive rod 413 is actuated to drive the notch 4131 to apply pressure to the protrusion 4111, causing the locking rod 411 to swing, the locking block 4112 disengages from the locking slot 4122 and the first position is reached. The coil spring 51 deforms and stores energy, while the two second coil springs 52 release energy and restore their original state, causing the two hooks 412 to expand towards each other and enlarge the clamping opening 4121, so that the latch 42 can disengage from the clamping opening 4121. This allows the traction arm 14 to rotate and switch to the second position for use. At this time, the end of the drive rod 413 is released, and the first coil spring 51 applies pressure to the locking rod 411, causing the locking block 4112 to abut against the side wall of the two hooks 412 and unable to reset. The two hooks 412 maintain their original state under the action of the two second coil springs 52.

[0061] After use, when the traction arm 14 is switched back to the first position, the latch 42 enters the socket and simultaneously abuts against the inner side of the two swing hooks 412, causing the two swing hooks 412 to move closer together, causing the clamp 4121 to gradually shrink. When the latch 42 is fully inserted into the clamp 4121, the clamp 4121 shrinks completely to fix the latch 42. At this time, the first coil spring 51 continues to release energy to drive the locking rod 411 to swing, thereby driving the locking block 4112 to re-engage the locking slot 4122 and re-lock the two swing hooks 412, thereby re-locking the traction arm 14 in the first position. At the same time, the swinging locking rod 411 will also apply pressure to the recess 4131 through the protrusion 4111 to drive the drive rod 413 to reset. Therefore, the above structure can realize the fixing or loosening of the traction arm 14, and the operation is simple and convenient.

[0062] See appendix Figure 7 -Appendix Figure 10 The coil spring assembly 5 also includes a third coil spring 53, which is installed at the rotatable connection between the drive rod 413 and the base 410.

[0063] Specifically, under normal circumstances, the third coil spring 53 is in its initial state and drives the notch 4131 to fit the protrusion 4111. When the drive rod 413 is swung, the notch 4131 abuts against the protrusion 4111 and applies pressure to drive the locking rod 411 to swing, while the third coil spring 53 deforms and stores energy. When the drive rod 413 is released, the third coil spring 53 releases energy and restores itself, driving the drive rod 413 so that the drive rod 413 and the locking rod 411 are synchronously reset. Therefore, with the design of the third coil spring 53, the drive rod 413 does not need to be reset by the locking rod 411, which can relieve the pressure on the first coil spring 51 and further improve the ease of operation and service life of the latch lock 41.

[0064] See appendix Figure 2-Appendix Figure 7 The traction arm 14 is also equipped with a rotatable auxiliary wheel 142, and when the traction arm 14 is in the second position, the auxiliary wheel 142 contacts the ground. The design of the auxiliary wheel 142 can increase the contact point between the vehicle body 1 and the ground, thereby providing support to the vehicle body 1 so that the vehicle body 1 can move more stably.

[0065] Furthermore, the auxiliary wheel 142 adopts a trailer outrigger guide wheel with a built-in first and second rotation position; when the towing arm 14 is in the first position, the trailer outrigger guide wheel can rotate to the first rotation position and be parallel to the towing arm 14 and in the same straight direction to avoid protruding; when the towing arm 14 is in the second position, the trailer outrigger guide wheel can rotate to the second rotation position and be perpendicular to the towing arm 14 and in contact with the ground to serve as a contact point between the vehicle body and the ground; therefore, the use of the trailer outrigger guide wheel can further reduce the volume of the vehicle body 1 when the towing arm 14 is not used, and improve the user experience.

[0066] It should be noted that trailer outrigger guide wheels are quite common in trailer products and are existing products; therefore, their specific structure will not be described in detail in this utility model.

[0067] See appendix Figure 2 -Appendix Figure 7 The bottom of the vehicle body 1 is also equipped with a height-adjustable telescopic support leg 15, which extends to touch the ground.

[0068] Specifically, when the towing arm 14 is in the second position and the vehicle is connected to the trailer connector 141 to tow the vehicle body 1, the telescopic support leg 15 is in a retracted state and away from the ground to avoid obstructing the movement of the vehicle body 1; when the towing arm 14 is in the first position, the operator can put the telescopic support leg 15 against the ground to make the vehicle body 1 park stably and prevent the vehicle body 1 from tipping over.

[0069] It should be noted that telescopic support legs 15 are quite common in products such as cabinets and brackets, and are existing products. Therefore, their specific structure will not be described in detail in this utility model.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel mobile trailer equipment, characterized in that, The vehicle includes a vehicle body (1) and a storage box (2); the vehicle body (1) is provided with an outward-opening charging compartment (11), and the charging compartment (11) is provided with a charging port (12) electrically connected to the power supply unit of the vehicle body (1). The vehicle body (1) is also equipped with a cover (13) for opening or closing the opening of the charging compartment (11); the storage box (2) is installed in the charging compartment (11) and is used to store keys, and the cover (13) covers the storage box (2) when the opening of the charging compartment (11) is closed.

2. The novel mobile trailer equipment according to claim 1, characterized in that, The top of the cover (13) is rotatably connected to the inner side wall of the charging compartment (11) so that the cover (13) can be flipped to open or close the opening of the charging compartment (11).

3. The novel mobile trailer equipment according to claim 2, characterized in that, The bottom of the cover (13) is provided with a rocker plate (131). When the cover (13) flips to close the opening of the charging compartment (11), there is a gap (130) between the rocker plate (131) and the charging compartment (11).

4. The novel mobile trailer equipment according to claim 2, characterized in that, It also includes a locking element (3), which can lock or release the cover (13) when the cover (13) is flipped to close the opening of the charging compartment (11).

5. A novel mobile trailer equipment according to claim 4, characterized in that, The hatch (13) has a through hole (132). The lock (3) includes a combination lock (31) and a buckle (32). The buckle (32) is located at the opening of the charging compartment (11) and fixed to the vehicle body (1). The buckle (32) can pass through the through hole (132) as the hatch (13) is flipped. The locking beam of the combination lock (31) can pass through the buckle (32) to lock the hatch (13).

6. The novel mobile trailer equipment according to claim 1, characterized in that, The storage box (2) is a combination lock box with locking function.

7. The novel mobile trailer equipment according to claim 1, characterized in that, The vehicle body (1) is also hinged with a towing arm (14), on which a trailer connector (141) is installed, and the towing arm (14) has a first position folded onto the vehicle body (1) and a second position unfolded detached from the vehicle body (1).

8. A novel mobile trailer equipment according to claim 7, characterized in that, It also includes a limiting part (4) installed on the vehicle body (1), which can fix or release the traction arm (14) when the traction arm (14) is in the first position.

9. A novel mobile trailer equipment according to claim 8, characterized in that, The limiting part (4) includes a latch lock (41) and a latch (42), the latch (42) being mounted on the traction arm (14); the latch lock (41) being mounted on the vehicle body (1), and the latch lock (41) having a drive rod (413); wherein, when the traction arm (14) is adjusted to the first position, the latch (42) can be inserted into the latch lock (41) and locked, while swinging the drive rod (413) can drive the latch lock (41) to release the latch (42).

10. A novel mobile trailer equipment according to claim 1, characterized in that, The bottom of the vehicle body (1) is also equipped with a height-adjustable telescopic support foot (15), which extends to touch the ground.

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