Electric box

Abstract

The utility model relates to the field of electric boxes, and discloses an electric box arranged at the bottom of a seat, which comprises a box body, a movable bottom plate and at least one movable layer plate. The box body is provided with a box door capable of being opened and closed, and the movable bottom plate is movably arranged at the bottom of the box body through a telescopic mechanism and can extend out of the box body by a certain distance through the box door under the constraint of the telescopic mechanism. The movable layer plates are arranged above the movable bottom plate in a stacked mode, the movable layer plate on the lowermost layer and the movable bottom plate are connected through a plurality of parallel supporting connecting rods, the adjacent movable layer plates are connected through a plurality of parallel supporting connecting rods, and the two ends of each supporting connecting rod are rotationally connected with the corresponding movable layer plate or the movable bottom plate respectively. The movable layer plates can stretch out by a certain distance in the stretching-out direction of the movable bottom plates under the constraint of the supporting connecting rods, so that the movable layer plates and the adjacent lower-layer movable layer plates or the movable bottom plates are staggered by a certain distance. According to the electric box, each layer in the electric box is convenient to unfold, and internal parts of the electric box can be disassembled, assembled, maintained or repaired without disassembling a seat.

Description

Technical Field

[0001] This utility model relates to the field of electrical box technology, specifically to an electrical box installed at the bottom of a seat. Background Technology

[0002] In construction machinery vehicles, modifications or additions of new functions are sometimes necessary, requiring the installation of components such as controllers, power modules, and fuse boxes. Due to limited space, these components are often installed under the seats to save space. Occasionally, these components require hardware and software updates, inspections, or maintenance. The limited space under the seats makes operation inconvenient, often necessitating the removal of the seat and its base. This necessitates multiple personnel and time-consuming seat removal and reinstallation, making maintenance inconvenient. Therefore, a new, easily maintainable electrical box is needed. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an electrical box that can unfold multiple layers inside the electrical box without disassembling the seat, which facilitates the updating, maintenance and repair of the components inside the electrical box.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: an electrical box, comprising: a box body, provided with an openable and closable door; a movable base plate, movably disposed at the bottom of the box body via a telescopic mechanism, which can extend a certain distance out of the box body through the door under the constraint of the telescopic mechanism; at least one movable shelf, a plurality of movable shelves stacked on top of the movable base plate, wherein the bottommost movable shelf and the movable base plate, as well as adjacent movable shelves, are connected by a plurality of parallel support rods, the two ends of the support rods being rotatably connected to the corresponding movable shelf or the movable base plate, and the movable shelf can extend a certain distance in the extension direction of the movable base plate under the constraint of the support rods, so that the movable shelf is offset from the adjacent lower movable shelf or the movable base plate by a certain distance; wherein, a plurality of support plates are provided between adjacent movable shelves, and between the movable shelf and the movable base plate.

[0005] Compared to existing technologies, the advantages of this invention are as follows: Because the movable base plate is housed within the box via a telescopic mechanism, and the movable shelves and the movable base plate, as well as adjacent movable shelves, are connected by parallel support rods, the movable base plate and movable shelves can be pulled out of the box and staggered a certain distance to unfold. This provides sufficient space for updating, inspecting, and maintaining the components installed on each movable shelf and movable base plate. This electrical box allows for the unfolding of its internal layers without disassembling the seat, facilitating the maintenance and repair of the internal components.

[0006] The aforementioned electrical box includes a telescopic mechanism comprising a telescopic connecting rod, a telescopic pull rod, and two slide rails. The two slide rails are respectively arranged parallel to each other on both sides of the bottom of the box body. The direction of the slide rails is parallel to the telescopic direction of the movable base plate. The upper end of the telescopic pull rod is rotatably connected to the upper side of the box body, and the lower end of the telescopic pull rod is rotatably connected to the front end of the movable base plate. The telescopic connecting rod includes multiple sub-connecting rods, which are rotatably connected end-to-end in sequence. The rear end of the last sub-connecting rod is rotatably connected to the rear side of the box body, and the front end of the foremost sub-connecting rod is rotatably connected to the movable base plate. The even-numbered rotatable connection nodes between the sub-connecting rods are slidably connected to the slide rails.

[0007] In the aforementioned electrical box, the support plate includes a front support plate and a rear support plate. The front support plate is disposed at the front end of the lower surface of the movable shelf, and the rear support plate is disposed at the rear end of the lower surface of the movable shelf. When the movable shelf is retracted into the box, the lower end of the front support plate abuts against the upper surface of the lower movable shelf or the movable base plate. When the movable shelf is unfolded, the lower end of the rear support plate abuts against the upper surface of the lower movable shelf or the movable base plate.

[0008] In the aforementioned electrical box, the lower ends of the front support plate and the rear support plate are bent towards the center of the movable shelf by a certain length.

[0009] In the aforementioned electrical box, pulleys are provided at the even-numbered rotational connection nodes between the sub-links.

[0010] In the aforementioned electrical box, latches are provided between adjacent movable shelves and between the movable shelves and the movable base plate. The latches are used to lock the relative positions of the movable shelves when the movable shelves are located inside the box.

[0011] In the aforementioned electrical box, one end of the latch is rotatably connected to the movable shelf or the movable base plate, and the other end of the latch is provided with a through hole through which the locking pin can pass. The movable shelf or the movable base plate is also provided with a through hole through which the locking pin can pass. When the movable shelf is retracted into the box body, the through hole of the latch can coincide with the through hole on the adjacent movable shelf or the movable base plate.

[0012] In the aforementioned electrical box, a flip-top fixing plate is provided between the box door and the box body, and the flip-top fixing plate is used to fix the position of the box door.

[0013] In the aforementioned electrical box, the flip-top fixing plate is disposed on at least one side of the box door. The flip-top fixing plate is provided with a slide rail. One end of the flip-top fixing plate is fixedly connected to the box door. The box body is provided with a sliding pin that matches the slide rail of the flip-top fixing plate. The sliding pin passes through the slide rail. When the box door is opened and closed, the sliding pin can slide along the slide rail of the flip-top fixing plate. The box body is provided with a locking hole. Two adjusting nuts are disposed in the locking hole. The adjusting nut away from the box door is fixed in the locking hole. The adjusting nut closer to the box door can slide along the locking hole. The adjusting nut closer to the box door is connected to the sliding pin. The end of the sliding pin away from the adjusting nut is provided with a nail head with a width greater than that of the slide rail.

[0014] The aforementioned electrical box includes two telescopic rods, which are respectively located on the left and right sides of the movable base plate. The upper ends of both telescopic rods are connected to a rotating shaft, which is rotatably connected to the upper side of the box body.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the electrical box according to an embodiment of the present utility model;

[0017] Figure 2 This is a side view of the internal structure of the electrical box according to an embodiment of the present utility model;

[0018] Figure 3 This is a front view of the internal structure of the electrical box according to an embodiment of the present utility model;

[0019] Figure 4 This is a rear view of the internal structure of the electrical box according to an embodiment of the present utility model;

[0020] Figure 5 This is a cross-sectional view of the flip cover fixing plate according to an embodiment of the present utility model;

[0021] Figure 6This is a schematic diagram of the telescopic mechanism according to an embodiment of the present utility model;

[0022] Figure 7 This is a top view of the flip cover fixing plate according to an embodiment of the present utility model;

[0023] Figure 8 This is a schematic diagram of the unfolded electrical box according to an embodiment of the present utility model.

[0024] Explanation of icon numbers:

[0025] 100 Box body, 110 Box door, 111 Flip cover fixing plate, 112 Sliding pin, 113 Adjusting nut, 120 Column, 130 Upper frame, 140 Lower frame, 200 Movable base plate, 201 Lower support plate, 210 Telescopic mechanism, 211 Telescopic rod, 212 Rotary shaft, 213 Telescopic connecting rod, 214 Pulley, 215 Slide rail, 220 Lock, 300 Movable shelf, 301 Front support plate, 302 Rear support plate, 310 Support connecting rod. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below, with reference to Figure 1 , Figure 2 and Figure 8 This utility model provides an electrical box, including a box body 100, a movable base plate 200, and at least one movable shelf 300. The box body 100 is provided with an openable and closable door 110. The movable base plate 200 is movably disposed at the bottom of the box body 100 via a telescopic mechanism 210, and can extend a certain distance outside the box body 100 through the door 110 under the constraint of the telescopic mechanism 210. Multiple movable shelves 300 are stacked on the movable base plate 200. The bottom movable shelf 300 and the movable base plate 200, as well as adjacent movable shelves 300, are connected by multiple parallel support rods 310. The two ends of the support rods 310 are rotatably connected to the corresponding movable shelf 300 or the movable base plate 200, respectively. The movable shelf 300 can extend a certain distance in the direction of the movable base plate 200 under the constraint of the supporting connecting rod 310, so that the movable shelf 300 is offset from the adjacent lower movable shelf 300 or movable base plate 200 by a certain distance, such as... Figure 8 As shown, several support plates are provided between adjacent movable shelves 300 and between movable shelves 300 and movable base plate 200. These support plates are used to support the movable shelves 300 when they are retracted into the electrical box or extended outside the box 100, so as to prevent damage to the components on the movable shelves 300 or movable base plate 200 due to excessively narrow spacing between them.

[0027] In this embodiment of the utility model, the movable base plate 200 and movable shelf 300 of the electrical box can extend beyond the box body 100 and unfold along the extension direction at a certain distance, thereby facilitating the disassembly, maintenance, or repair of components on the movable base plate 200 and movable shelf 300. By placing this electrical box under the vehicle seat to modify the vehicle, the various layers inside the electrical box can be unfolded without disassembling the seat, thus enabling the repair, maintenance, or replacement of components inside the electrical box without removing the seat, improving the efficiency of repairing or maintaining modified vehicles.

[0028] Reference Figures 1 to 4 In this embodiment, the box 100 is rectangular, consisting of a rectangular frame made of square steel and several baffles. The rectangular frame includes a rectangular upper frame 130 and a lower frame 140 formed by four square steel bars, and four columns 120 connecting the upper frame 130 and the lower frame 140.

[0029] It is understood that the telescopic mechanism 210 can be composed of a telescopic slide rail 215, or it can be composed of other telescopic mechanisms 210. (Refer to...) Figure 2 , Figure 6 and Figure 8 In this embodiment, the telescopic mechanism 210 includes a telescopic connecting rod 213, a telescopic pull rod 211, and two slide rails 215. The two slide rails 215 are respectively disposed on the left and right sides of the lower frame 140, and the direction of the slide rails 215 is parallel to the telescopic direction of the movable base plate 200. The upper end of the telescopic pull rod 211 is rotatably connected to the upper end of the column 120 on the front side of the box 100, and the lower end is rotatably connected to the front end of the movable base plate 200, so as to limit the extension length of the movable base plate 200 and provide traction support for the movable base plate 200 when it is extended. The telescopic link 213 includes multiple sub-links that are rotatably connected end to end. The rear end of the last sub-link is rotatably connected to one end of the slide rail 215 set on the lower frame 140, and the front end of the first sub-link is rotatably connected to the movable side plate. The even-numbered rotatable connection nodes between the sub-links are slidably connected to the slide rail 215, so that the telescopic link 213 and the slide rail 215 form multiple triangular structures. When the movable base plate 200 extends, the included angle between adjacent sub-links increases as the extension distance of the movable base plate 200 increases.

[0030] Reference Figure 3 , Figure 4 and Figure 7In this embodiment, two sets of telescopic connecting rods 213 and two telescopic tie rods 211 are included. The two sets of telescopic connecting rods 213 and the two telescopic tie rods 211 are respectively arranged on the left and right sides of the movable base plate 200. Each set of telescopic connecting rods 213 includes four sub-connecting rods. A pulley 214 is rotatably arranged at the rotational connection node between the second and third sub-connecting rods. An oblong track is provided on the slide rail 215. The pivot 212 of the pulley 214 passes through the track of the slide rail 215. When the movable base plate 200 extends or retracts, the pivot 212 of the pulley 214 can slide along the track of the slide rail 215, so that the extension and retraction of the movable base plate 200 is smoother. (Refer to...) Figure 3 and Figure 4 In this embodiment, to ensure that the two telescopic rods 211 can extend and retract synchronously, the upper ends of both telescopic rods 211 are connected to a rotating shaft 212. The two ends of the rotating shaft 212 are respectively rotatably connected to the two uprights 120 on the front side of the electrical box, so that the rotation of the two telescopic rods 211 is synchronized. The two sides of the movable shelf 300 and the movable base plate 200 are connected by two parallel support rods 310 of equal length. The upper end of the support rod 310 is rotatably connected to the movable shelf 300, and the lower end of the support rod 310 is rotatably connected to the movable base plate 200.

[0031] Reference Figure 3 and Figure 4In this embodiment, the housing 100 has a two-layer structure: only one movable shelf 300 is provided above the movable shelf 300, and two front support plates 301 and two rear support plates 302 are provided on the lower surface of the movable shelf 300. The length of the front support plates 301 is longer than that of the rear support plates 302. The two front support plates 301 are located at the front end of the movable shelf 300, and the two rear support plates 302 are located at the rear end of the movable shelf 300. When the movable shelf 300 is retracted into the housing 100, the lower end of the front support plate 301 of the movable shelf 300 abuts against the movable shelf 300 or the movable bottom plate 200 below it; when the movable shelf 300 is unfolded, the lower end of the rear support plate 302 of the movable shelf 300 abuts against the movable shelf 300 or the movable bottom plate 200 below it. Because the rear support plate 302 is shorter than the front support plate 301, it avoids excessive spacing between the movable shelves 300 or between the movable shelves 300 and the movable base plate 200 after unfolding, which would result in an excessively high structure after unfolding and cause inconvenience for component repair and maintenance. To ensure that the retracted movable base plate 200 can better support the upper movable shelves 300, two lower support plates 201 of equal length to the front support plate 301 are provided on the upper surface of the movable base plate 200. When the movable shelves 300 retract onto the movable base plate 200, the upper ends of the lower support plates 201 abut against the lower surface of the movable shelves 300. In this embodiment, the lower ends of the front support plate 301 and the rear support plate 302 are bent horizontally towards the center of the movable shelves 300 by a certain length, and the upper ends of the lower support plates 201 are also bent horizontally towards the center of the movable base plate 200 by a certain length to better support the movable shelves 300.

[0032] Understandably, a latch 220 is provided between the movable base plate 200 and the movable shelf 300. The latch 220 is used to lock the relative position of the movable shelf 300 when it is inside the housing 100, to prevent the movable shelf 300 from shaking during vehicle operation, causing components on the movable shelf 300 to collide with the internal structure of the housing 100 and resulting in damage. (Refer to...) Figure 6 In this embodiment, one end of the latch 220 is rotatably connected to the front end of the movable base plate 200, and the other end of the latch 220 is provided with a through hole through which the locking pin can pass. The front end of the movable shelf 300 is also provided with a through hole through which the locking pin can pass. The length of the latch 220 is preferably less than the length of the support link 310. When the movable shelf 300 retracts onto the movable base plate 200, the latch 220 can be rotated so that its through hole coincides with the through hole on the movable shelf 300. At this time, when the locking pin is passed through the two through holes on the latch 220 and the movable shelf 300, the movable shelf 300 can be locked by the latch 220 and cannot move relative to the movable base plate 200.

[0033] Understandably, the lower side of the door 110 is hinged to the front end of the lower frame 140. A flip-top fixing plate 111 is provided between the door 110 and the body 100. The flip-top fixing plate 111 is used to fix the position of the door 110 and prevent the door 110 from opening on its own due to vehicle vibration during driving. (Refer to...) Figures 5 to 7 In this embodiment, two flip-top fixing plates 111 are included. Both flip-top fixing plates 111 are arc-shaped plates and are respectively disposed on the left and right sides of the door 110. One end of the flip-top fixing plate 111 is fixedly connected to the door 110. A slide rail is provided on the flip-top fixing plate 111. A sliding pin 112 is provided on each of the two uprights 120 on the front side of the box body 100. When the door 110 is opened or closed, the sliding pin 112 will slide along the slide rail. A locking hole is provided on each of the two uprights 120 on the front side of the box body 100. Two adjusting nuts 113 are provided in the locking hole. The adjusting nut 113 away from the door 110 is fixedly disposed in the locking hole, and the adjusting nut 113 near the door 110 can slide along the locking hole. The sliding pin 112 is connected to the adjusting nut 113 near the door 110. A nail head with a width greater than the slide rail is provided on the end of the sliding pin 112 away from the adjusting nut 113. Two adjusting nuts 113 inside the same column 120 are connected by an adjusting bolt. The position of the adjusting nut 113 on the side closer to the door 110 can be adjusted by rotating the adjusting bolt, thereby adjusting the pressure between the sliding pin 112 and the flip cover fixing plate 111, thereby locking or unlocking the flip cover fixing plate 111, and thus locking or unlocking the door 110.

[0034] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0035] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is mentioned, it is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An electrical box, characterized in that, include: The enclosure (100) is equipped with an openable and closable door (110); The movable base plate (200) is movably set at the bottom of the box (100) through the telescopic mechanism (210), and can extend a certain distance outside the box (100) through the box door (110) under the constraint of the telescopic mechanism (210); At least one movable shelf (300) is provided, and several movable shelves (300) are stacked on top of the movable base plate (200). The bottommost movable shelf (300) is connected to the movable base plate (200) and adjacent movable shelves (300) by multiple parallel support rods (310). The two ends of the support rods (310) are rotatably connected to the corresponding movable shelf (300) or the movable base plate (200). The movable shelf (300) can extend a certain distance in the extension direction of the movable base plate (200) under the constraint of the support rods (310), so that the movable shelf (300) is offset from the adjacent lower movable shelf (300) or the movable base plate (200) by a certain distance. Several support plates are provided between adjacent movable shelves (300) and between the movable shelves (300) and the movable base plate (200).

2. The electrical box according to claim 1, characterized in that, The telescopic mechanism (210) includes a telescopic connecting rod (213), a telescopic pull rod (211), and two slide rails (215). The two slide rails (215) are respectively arranged parallel to each other on both sides of the bottom of the box (100). The direction of the slide rails (215) is parallel to the telescopic direction of the movable base plate (200). The upper end of the telescopic pull rod (211) is rotatably connected to the upper side of the box (100), and the lower end of the telescopic pull rod (211) is rotatably connected to the front end of the movable base plate (200). The telescopic connecting rod (213) includes multiple sub-connecting rods. The ends of the multiple sub-connecting rods are rotatably connected in sequence. The rear end of the last sub-connecting rod is rotatably connected to the rear side of the box (100), and the front end of the foremost sub-connecting rod is rotatably connected to the movable base plate (200). The even-numbered rotatable connection nodes between the sub-connecting rods are slidably connected to the slide rails (215).

3. The electrical box according to claim 1, characterized in that, The support plate includes a front support plate (301) and a rear support plate (302). The front support plate (301) is disposed at the front end of the lower surface of the movable shelf (300), and the rear support plate (302) is disposed at the rear end of the lower surface of the movable shelf (300). When the movable shelf (300) is retracted into the box (100), the lower end of the front support plate (301) abuts against the upper surface of the lower movable shelf (300) or the movable bottom plate (200). When the movable shelf (300) is unfolded, the lower end of the rear support plate (302) abuts against the upper surface of the lower movable shelf (300) or the movable bottom plate (200).

4. The electrical box according to claim 3, characterized in that, The lower ends of the front support plate (301) and the rear support plate (302) are bent towards the center of the movable shelf (300) by a certain length.

5. The electrical box according to claim 2, characterized in that, A pulley (214) is provided at the even-numbered rotational connection nodes between the sub-links.

6. The electrical box according to claim 1, characterized in that, A latch (220) is provided between adjacent movable shelves (300) and between the movable shelf (300) and the movable base plate (200). The latch (220) is used to lock the relative position between the movable shelves (300) when the movable shelf (300) is located inside the box (100).

7. The electrical box according to claim 6, characterized in that, One end of the latch (220) is rotatably connected to the movable shelf (300) or the movable base plate (200), and the other end of the latch (220) is provided with a through hole through which the locking pin can pass. The movable shelf (300) or the movable base plate (200) is also provided with a through hole through which the locking pin can pass. When the movable shelf (300) is retracted into the box (100), the through hole of the latch (220) can coincide with the through hole on the adjacent movable shelf (300) or the movable base plate (200).

8. The electrical box according to claim 1, characterized in that, A flip-top fixing plate (111) is provided between the box door (110) and the box body (100), and the flip-top fixing plate (111) is used to fix the position of the box door (110).

9. The electrical box according to claim 8, characterized in that, The flip-top fixing plate (111) is disposed on at least one side of the box door (110). The flip-top fixing plate (111) has a slide rail. One end of the flip-top fixing plate (111) is fixedly connected to the box door (110). The box body (100) has a sliding pin (112) that matches the slide rail of the flip-top fixing plate (111). The sliding pin (112) passes through the slide rail. When the box door (110) is opened and closed, the sliding pin (112) can slide along the slide rail of the flip-top fixing plate (111). The housing (100) is provided with a locking hole, and two adjusting nuts (113) are provided in the locking hole. The adjusting nut (113) away from the door (110) is fixed in the locking hole, and the adjusting nut (113) near the door (110) can slide along the locking hole. The adjusting nut (113) near the door (110) is connected to the sliding pin (112). The end of the sliding pin (112) away from the adjusting nut (113) is provided with a nail head with a width greater than that of the slide.

10. The electrical box according to claim 2, characterized in that, It includes two telescopic rods (211), which are respectively set on the left and right sides of the movable base plate (200). The upper ends of the two telescopic rods (211) are connected to the rotating shaft (212), which is rotatably connected to the upper side of the box body (100).

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