CN219407367U - Stackable vehicle-mounted box - Google Patents

Abstract

The utility model discloses a stackable vehicle-mounted box, which comprises a box body and a box cover, wherein a hinge for hinging the box body and the box cover is arranged between the box body and the box cover; the upper end face of the box cover is provided with a plurality of uniformly distributed limiting protrusions, and four corners of the box cover are respectively provided with L-shaped limiting pieces; the bottom of the box body is provided with a plurality of uniformly distributed limiting grooves, a first reinforcing rib is arranged between any two adjacent limiting grooves, and each limiting protrusion corresponds to each limiting groove one by one; a lock catch assembly for locking the box body and the box cover is arranged between the box body and the box cover, a plurality of second reinforcing ribs extending along the vertical direction are arranged on the side wall of the box body, and each second reinforcing rib is arranged adjacent to the lock catch assembly; according to the utility model, the top and the bottom of the box body are provided with the mutually matched limiting structures, so that the box bodies are more stable when stacked. Meanwhile, the side wall of the box body is provided with the reinforcing ribs, so that the box body can bear larger pressure when stacked mutually, and the stacking effect is good and reliable.

Description

Stackable vehicle-mounted box

Technical Field

The utility model belongs to the technical field of vehicle-mounted boxes, and particularly relates to a stackable vehicle-mounted box.

Background

The vehicle-mounted boxes are usually used for storing materials, all the materials are placed in the vehicle-mounted boxes, the vehicle-mounted boxes are in a locking state through the lock catches, and then the vehicle-mounted boxes in the locking state are stacked together and transported by vehicles. Because the outer wall of the existing vehicle-mounted box is a flat end face, the outer wall of the vehicle-mounted box is free of a limiting structure. When a plurality of vehicle-mounted boxes are mutually stacked up and down, vibration generated in the running process of the vehicle easily causes the mutually stacked vehicle-mounted boxes to move relatively, so that the vehicle-mounted boxes stacked above have the risk of toppling; the interior materials of the vehicle-mounted box can be mutually extruded after the vehicle-mounted box is toppled, so that the quality of the materials is affected. When the vehicle-mounted boxes are stacked, the pressure born by the outer walls of the vehicle-mounted boxes is increased, and the outer walls of the vehicle-mounted boxes placed at the bottommost part can be extruded and damaged. Accordingly, there is a need to design a stackable in-vehicle box to overcome the above difficulties.

Disclosure of Invention

The utility model designs a stackable vehicle-mounted box aiming at the problems in the prior art, and the top and the bottom of the box body are provided with mutually matched limiting structures, so that the box bodies are more stable when stacked. Meanwhile, the side wall of the box body is provided with the reinforcing ribs, so that the box body can bear larger pressure when stacked mutually, and the stacking effect is good and reliable.

The utility model aims at realizing the following technical scheme: the stackable vehicle-mounted box comprises a box body and a box cover, wherein a hinge for hinging the box body and the box cover is arranged between the box body and the box cover; the upper end face of the box cover is provided with a plurality of uniformly distributed limiting protrusions, and four corners of the box cover are respectively provided with an L-shaped limiting piece; a plurality of uniformly distributed limiting grooves are formed in the bottom of the box body, first reinforcing ribs are arranged between any two adjacent limiting grooves, and each limiting protrusion corresponds to each limiting groove one by one; the novel box comprises a box body and a box cover, wherein a locking assembly for locking the box body and the box cover is arranged between the box body and the box cover, a plurality of second reinforcing ribs extending along the vertical direction are arranged on the side wall of the box body, and each second reinforcing rib is arranged adjacent to the locking assembly.

Preferably, the protruding height of the limiting protrusion is the same as the protruding height of the L-shaped limiting piece, the protruding height of the limiting protrusion is the same as the recessed depth of the limiting groove, and the limiting protrusion is clamped in the limiting groove when the box body and the box cover are mutually stacked; the length of the first reinforcing rib is the same as that of the limiting groove, and the width of the first reinforcing rib is larger than that of the limiting groove.

The limit protrusion and the limit groove are matched with each other, so that the stacked box cover and the box body cannot move relatively, and meanwhile, the L-shaped limit piece at the edge of the box cover further limits the box body. And a first reinforcing rib is arranged between any two of the limit grooves, so that the structure of the limit grooves is more stable.

Preferably, the outline of the limit protrusion is matched with the outline of the limit groove; the bottom plate of the box cover is also provided with placing grooves for placing the L-shaped limiting pieces, and the placing grooves are distributed on four corners of the box cover; the L-shaped limiting part comprises two side frames which are perpendicular to each other, the limiting protrusions are bar-shaped protrusions with the same side length, and each limiting protrusion is arranged in parallel.

When two on-vehicle casees stack from top to bottom each other, spacing protruding card is in spacing recess, simultaneously L type locating part card is in placing the recess, and two on-vehicle casees stack more stably and fix a position more accurately when stacking like this.

Preferably, the frame of the L-shaped limiting part is arranged in parallel with the adjacent limiting protrusions, the opening direction of the L-shaped limiting part faces the corner of the box cover, so that the L-shaped limiting part is limited at the corner, and the two vehicle-mounted boxes are easier to axially align in the stacking process.

Preferably, the recess depth of the placement groove is the same as the recess depth of the limiting groove, and each placement groove corresponds to each L-shaped limiting piece one by one.

Preferably, the lock catch assembly comprises a lock body, a locking piece, a fixing seat, a first lock hook, an eccentric wheel, a rotating piece and a connecting shaft; the first lock hook is fixedly arranged on the box cover, the fixed seat is fixedly connected with the box body, a lock body hinged with the fixed seat is arranged on the fixed seat, and a cavity for accommodating the locking piece is arranged in the lock body; the eccentric wheel is provided with a connecting shaft fixedly connected with the eccentric wheel, the connecting shaft is arranged at a position of the eccentric wheel away from the circle center of the eccentric wheel, and the tail end of the connecting shaft away from the eccentric wheel is provided with a limiting disc fixedly connected with the connecting shaft; the eccentric wheel is hinged with the lock body through a connecting shaft, and the eccentric wheel and the limiting disc are respectively arranged at two sides of the lock body; the eccentric wheel rotates relative to the lock body and the connecting shaft pushes the locking piece to be close to or far away from the first lock hook; the eccentric wheel is provided with a rotating part hinged with the eccentric wheel, the rotating part is provided with a limiting through hole, the end face of the lock body, facing the rotating part, is provided with strip-shaped protrusions corresponding to the limiting through holes one by one, and the eccentric wheel cannot rotate relative to the lock body when the strip-shaped protrusions are clamped into the limiting through holes.

The lock catch component has two modes of locking state and unlocking state; when the lock catch assembly is in a locking state, the first lock hook and the locking piece are mutually attached, and the box cover cannot rotate relative to the box body; when the lock catch assembly is in an unlocking state, the first lock hook and the locking piece are mutually far away, and the box cover can rotate relative to the box body; the lock catch assembly is in a locking state by default, and when the lock catch assembly is required to be switched from the locking state to the unlocking state, the rotating piece is pulled to be far away from the strip-shaped bulge on the fixed seat; and then the connecting shaft is used as a rotating shaft to pull the rotating piece, the eccentric wheel is driven to rotate when the rotating piece rotates, the connecting shaft is driven to rotate when the eccentric wheel rotates, the locking piece is pushed to be far away from the first lock hook when the connecting shaft rotates, so that the locking piece loses the limit of the first lock hook, then the lock body rotates relative to the fixed seat under the action of gravity and is far away from the surface of the box body, the locking piece is synchronously far away from the first lock hook, and then the lock catch assembly is switched to an unlocking state. When the lock catch assembly is required to be switched from the unlocking state to the locking state, the lock body is pushed to be attached to the surface of the box body, and the locking piece is positioned right above the first locking hook; then pulling the rotating piece to drive the eccentric wheel to rotate, driving the connecting shaft to rotate when the eccentric wheel rotates, and pushing the locking piece to be close to the first locking hook when the connecting shaft rotates, so that the first locking hook hooks the locking piece; and then the rotating piece is independently pulled, so that the limiting through hole on the rotating piece is close to the strip-shaped bulge, the rotating piece cannot further rotate, and the lock catch assembly can be stably maintained in a locking state.

Preferably, the end of the locking piece facing the first locking hook is provided with a second locking hook matched with the first locking hook; the limiting disc is a cylinder, the diameter of the limiting disc is larger than the width of the strip-shaped hole, and the end face, facing the locking piece, of the limiting disc is mutually attached to the locking piece.

The second lock hook is arranged on the locking piece and is matched with the first lock hook, so that the effect of mutual locking of the first lock hook and the locking piece is better and reliable; the diameter of the limiting disc is larger than the width of the strip-shaped hole, so that the connecting shaft can be locked in the lock body and cannot be separated from the lock body.

Preferably, the side surfaces of the box body and the box cover are respectively provided with a first inner concave part for accommodating the lock catch assemblies, each first inner concave part corresponds to each lock catch assembly one by one, the first inner concave parts extend to the box cover along the box body, and a second reinforcing rib is arranged at a position adjacent to each first inner concave part; the side surfaces of the box body and the box cover are respectively provided with a second concave part for accommodating the hinges, and each second concave part corresponds to the hinges one by one; the first concave parts arranged on the front end surface of the box body are opposite to and in one-to-one correspondence with the second concave parts arranged on the rear end surface of the box body.

The supporting structure of the box body is more stable through the second reinforcing ribs, so that the plurality of vehicle-mounted boxes are more stable and reliable when stacked up and down. The hinge sets up on the second indent portion, the latch assembly sets up on first indent portion, then when two on-vehicle casees are horizontal around placing side by side, the hinge on the preceding on-vehicle case will set up adjacent and both can not mutual interference with the latch assembly on the on-vehicle case of back, and the hinge on the preceding on-vehicle case can not cause wearing and tearing to the latch assembly on the on-vehicle case of back.

Preferably, a balance valve for adjusting pressure is arranged on the side surface of the box body; a first groove is formed in the edge of the box cover, and an annular sealing strip for sealing is arranged in the first groove; the edge of box is equipped with protruding muscle, the appearance profile of protruding muscle and the inside profile mutual match of first recess, when box and case lid are mutually pasted protruding muscle extrusion contact annular sealing strip.

The balance valve is arranged on the side surface of the box body, so that the pressure value in the box body can be conveniently adjusted; when the vehicle-mounted box is used at different altitudes, the pressure value in the vehicle-mounted box needs to be regulated through the balance valve; through set up annular sealing strip between box and case lid, on-vehicle case just so can have fine leakproofness and internal pressure can remain stable.

Preferably, the front end face of the box body is provided with a marking frame for mounting a nameplate. Through setting up the identification frame, conveniently place the data plate in the side of box.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the surface of the box cover is provided with the plurality of uniformly distributed limiting protrusions, the bottom of the box body is provided with the plurality of uniformly distributed limiting grooves, and the vertically stacked vehicle-mounted boxes are limited through the limiting protrusions and the limiting grooves, so that the vertically stacked vehicle-mounted boxes are not easy to slide relatively. The edge of case lid has still set up L type locating part, and is further spacing through L type locating part and placing the recess, and spacing effect is better. The first reinforcing ribs are arranged between the two adjacent limiting grooves, so that the structure of the limiting grooves is more stable. Meanwhile, the second reinforcing ribs are arranged on the side face of the box body, so that the supporting effect of the box body is better, and the box body can keep a stable supporting state when a plurality of vehicle-mounted box bodies are stacked up and down. Therefore, the utility model has good stacking effect and is convenient and reliable to stack.

Drawings

Fig. 1 is a perspective view of the novel embodiment from bottom to top;

FIG. 2 is a perspective view of the novel embodiments stacked on top of each other;

FIG. 3 is a perspective view of the present embodiment in an open state;

FIG. 4 is a top view of the novel embodiment;

FIG. 5 is a cross-sectional view taken from A-A of FIG. 4;

fig. 6 is a perspective view of the case cover;

FIG. 7 is a perspective view of the latch assembly;

fig. 8 is a perspective view of another view of the latch assembly.

The marks in the figure: 1. a case; 2. a case cover; 3. a hinge; 4. a limit protrusion; 5. an L-shaped limiting piece; 6. a limit groove; 7. a first reinforcing rib; 8. a latch assembly; 81. a lock body; 82. a locking member; 821. a second latch hook; 83. a fixing seat; 84. a first latch hook; 85. an eccentric wheel; 86. a rotating member; 87. a connecting shaft; 88. a limiting disc; 89. a bar-shaped hole; 810. limiting through holes; 811. a bar-shaped protrusion; 9. a second reinforcing rib; 10. placing the groove; 11. a first concave portion; 12. a second concave portion; 13. a balancing valve; 14. a logo frame; 15. a first groove; 16. an annular sealing strip; 17. convex ribs.

Detailed Description

The utility model is further described below with reference to embodiments shown in the drawings in which:

as shown in fig. 1 to 8, the present embodiment discloses a stackable vehicle-mounted box, which comprises a box body 1 and a box cover 2, wherein a hinge 3 for hinging the box body 1 and the box cover 2 is arranged between the box body and the box cover 2; the upper end face of the box cover 2 is provided with a plurality of uniformly distributed limiting protrusions 4, and four corners of the box cover 2 are respectively provided with an L-shaped limiting piece 5; a plurality of uniformly distributed limiting grooves 6 are formed in the bottom of the box body 1, first reinforcing ribs 7 are arranged between any two adjacent limiting grooves 6, and each limiting protrusion 4 corresponds to each limiting groove 6 one by one; the novel multifunctional box comprises a box body 1 and a box cover 2, wherein a locking assembly 8 for locking the box body 1 and the box cover 2 is arranged between the box body and the box cover, a plurality of second reinforcing ribs 9 extending along the vertical direction are arranged on the side wall of the box body 1, and each second reinforcing rib 9 is arranged adjacent to the locking assembly 8.

The outer convex height of the limiting protrusion 4 is the same as that of the L-shaped limiting piece 5, the outer convex height of the limiting protrusion 4 is the same as the concave depth of the limiting groove 6, and the limiting protrusion 4 is clamped in the limiting groove 6 when the box body 1 and the box cover 2 are mutually stacked; the length of the first reinforcing rib 7 is the same as the length of the limit groove 6, and the width of the first reinforcing rib 7 is larger than the width of the limit groove 6. The outline of the limit bulge 4 is matched with the outline of the limit groove 6; the bottom plate of the box cover 2 is also provided with placing grooves 10 for placing the L-shaped limiting pieces 5, and the placing grooves 10 are distributed on four corners of the box cover 2; the L-shaped limiting part 5 comprises two mutually perpendicular frames, the limiting protrusions 4 are bar-shaped protrusions with the same side length, and each limiting protrusion 4 is arranged in parallel. The frame of the L-shaped limiting part 5 is arranged in parallel with the adjacent limiting protrusions 4, and the opening direction of the L-shaped limiting part 5 faces the corner of the box cover 2. The recess depth of the placement groove 10 is the same as the recess depth of the limit groove 6, and each placement groove 10 corresponds to each L-shaped limit piece 5 one by one.

The lock catch assembly 8 comprises a lock body 81, a locking piece 82, a fixed seat 83, a first lock hook 84, an eccentric wheel 85, a rotating piece 86 and a connecting shaft 87; the first lock hook 84 is fixedly arranged on the box cover 2, the fixed seat 83 is fixedly connected with the box body 1, the fixed seat 83 is provided with a lock body 81 hinged with the fixed seat, and a cavity for accommodating the locking piece 82 is arranged in the lock body 81; the eccentric wheel 85 is provided with a connecting shaft 87 fixedly connected with the eccentric wheel 85, the connecting shaft 87 is arranged at a position of the eccentric wheel 85 far away from the center of the circle, and the end of the connecting shaft 87 far away from the eccentric wheel 85 is provided with a limiting disc 88 fixedly connected with the connecting shaft; the eccentric wheel 85 is hinged with the lock body 81 through a connecting shaft 87, and the eccentric wheel 85 and a limiting disc 88 are respectively arranged at two sides of the lock body 81; the locking piece 82 is arranged in the lock body 81, a strip-shaped hole 89 for inserting a connecting shaft 87 is formed in the locking piece 82, the connecting shaft 87 pushes the locking piece 82 to be close to or far from the first lock hook 84 while the eccentric wheel 85 rotates relative to the lock body 81; the eccentric wheel 85 is provided with a rotating member 86 hinged with the eccentric wheel 85, the rotating member 86 is provided with a limiting through hole 810, the fixing seat 83 is provided with strip-shaped protrusions 811 corresponding to the limiting through holes 810 one by one, and the eccentric wheel 85 cannot rotate relative to the lock body 81 when the strip-shaped protrusions 811 are clamped into the limiting through holes 810. The end of the locking piece 82 facing the first locking hook 84 is provided with a second locking hook 821 matched with the end of the locking piece facing the first locking hook; the limiting disc 88 is a cylinder, the diameter of the limiting disc 88 is larger than the width of the strip-shaped hole 89, and the end face, facing the locking piece 82, of the limiting disc 88 is mutually attached to the locking piece 82.

The side surfaces of the box body 1 and the box cover 2 are respectively provided with a first inner concave part 11 for accommodating the lock catch assemblies 8, each first inner concave part 11 corresponds to each lock catch assembly 8 one by one, the first inner concave parts 11 extend to the box cover 2 along the box body 1, and a second reinforcing rib 9 is arranged at a position adjacent to each first inner concave part 11; the side surfaces of the box body 1 and the box cover 2 are respectively provided with a second concave part 12 for accommodating the hinges 3, and each second concave part 12 corresponds to the hinges 3 one by one; the first concave parts 11 arranged on the front end surface of the box body 1 are opposite to and in one-to-one correspondence with the second concave parts 12 arranged on the rear end surface of the box body 1. The side surface of the box body 1 is provided with a balance valve 13 for regulating pressure; a first groove 15 is formed in the edge of the box cover 2, and an annular sealing strip 16 for sealing is arranged in the first groove 15; the edge of the box body 1 is provided with a convex rib 17, the outline of the convex rib 17 is matched with the internal outline of the first groove 15, and the convex rib 17 is in extrusion contact with the annular sealing strip 16 when the box body 1 and the box cover 2 are mutually attached. The front end face of the box body 1 is provided with a marking frame 14 for mounting a nameplate.

The specific operation process of this embodiment is as follows, when the on-vehicle case needs transportation, just needs a plurality of on-vehicle cases to pile up together transportation, just so can place more goods on the transportation vehicle, saved storage space. Before stacking the vehicle-mounted box, the lock catch assembly 8 is closed, so that the lock catch assembly 8 is in a locking state, the box body 1 and the box cover 2 cannot rotate relatively, and the vehicle-mounted box is in a sealing state.

The first in-vehicle bin is then placed on the transport vehicle and the second in-vehicle bin is stacked above the first in-vehicle bin. When stacking, the limiting groove 6 on the second vehicle-mounted box is aligned with the limiting protrusion 4 on the first vehicle-mounted box, and thus the limiting protrusion 4 is clamped in the corresponding limiting groove 6. When second on-vehicle case and first on-vehicle case mutually paste, L type locating part 5 of second on-vehicle case upper edge can block simultaneously in the recess 10 of placing on first on-vehicle case, and two on-vehicle cases are stacked each other like this and just are more stable. The above steps are then repeated, stacking a new in-vehicle bin over the second in-vehicle bin.

When the vehicle-mounted boxes are stacked in the vertical direction by a certain height, the vehicle-mounted boxes are required to be horizontally placed, and at the moment, only the left end face and the right end face of a new vehicle-mounted box are required to be aligned with the left end face and the right end face of the adjacent vehicle-mounted box, so that all the vehicle-mounted boxes can be stacked on a transport vehicle in order.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The stackable vehicle-mounted box comprises a box body (1) and a box cover (2), wherein a hinge (3) for hinging the box body (1) and the box cover (2) is arranged between the box body and the box cover (2), and the stackable vehicle-mounted box is characterized in that a plurality of uniformly distributed limiting protrusions (4) are arranged on the upper end face of the box cover (2), and L-shaped limiting pieces (5) are respectively arranged on four corners of the box cover (2); a plurality of uniformly distributed limit grooves (6) are formed in the bottom of the box body (1), first reinforcing ribs (7) are arranged between any two adjacent limit grooves (6), and each limit protrusion (4) corresponds to each limit groove (6) one by one; the novel multifunctional box comprises a box body (1) and a box cover (2), wherein a locking assembly (8) for locking the box body (1) and the box cover (2) is arranged between the box body and the box cover, a plurality of second reinforcing ribs (9) extending along the vertical direction are arranged on the side wall of the box body (1), and each second reinforcing rib (9) is arranged adjacent to the locking assembly (8).

2. The stackable vehicle-mounted box according to claim 1, wherein the protruding height of the limiting protrusion (4) is the same as the protruding height of the L-shaped limiting piece (5), the protruding height of the limiting protrusion (4) is the same as the recessed depth of the limiting groove (6), and the limiting protrusion (4) is clamped in the limiting groove (6) when the box body (1) and the box cover (2) are stacked with each other; the length of the first reinforcing rib (7) is the same as that of the limiting groove (6), and the width of the first reinforcing rib (7) is larger than that of the limiting groove (6).

3. Stackable car box according to claim 2, characterized in that the contour of the limit projection (4) matches the contour of the limit recess (6); the bottom plate of the box cover (2) is also provided with placing grooves (10) for placing the L-shaped limiting pieces (5), and the placing grooves (10) are distributed on four corners of the box cover (2); the L-shaped limiting part (5) comprises two side frames which are perpendicular to each other, the limiting protrusions (4) are bar-shaped protrusions with the same side length, and each limiting protrusion (4) is arranged in parallel.

4. A stackable car box according to claim 3, characterized in that the frame of the L-shaped limiting member (5) is arranged in parallel with the adjacent limiting projections (4), and the opening direction of the L-shaped limiting member (5) is directed towards the corner of the box cover (2).

5. A stackable car box according to claim 3, wherein the recess depth of the placement recess (10) is the same as the recess depth of the limit recess (6), each placement recess (10) being in one-to-one correspondence with each L-shaped limit piece (5).

6. The stackable car box according to claim 1, characterized in that the latch assembly (8) comprises a lock body (81), a locking member (82), a fixed seat (83), a first latch hook (84), an eccentric (85), a rotating member (86) and a connecting shaft (87); the first lock hook (84) is fixedly arranged on the box cover (2), the fixed seat (83) is fixedly connected with the box body (1), the fixed seat (83) is provided with a lock body (81) hinged with the fixed seat, and a cavity for accommodating the locking piece (82) is arranged in the lock body (81); the eccentric wheel (85) is provided with a connecting shaft (87) fixedly connected with the eccentric wheel, the connecting shaft (87) is arranged at a position of the eccentric wheel (85) away from the center of the circle, and the tail end of the connecting shaft (87) away from the eccentric wheel (85) is provided with a limiting disc (88) fixedly connected with the connecting shaft; the eccentric wheel (85) is hinged with the lock body (81) through a connecting shaft (87), and the eccentric wheel (85) and the limiting disc (88) are respectively arranged at two sides of the lock body (81); the locking piece (82) is arranged in the lock body (81), a strip-shaped hole (89) for inserting the connecting shaft (87) is formed in the locking piece (82), the connecting shaft (87) pushes the locking piece (82) to be close to or far away from the first lock hook (84) while the eccentric wheel (85) rotates relative to the lock body (81); be equipped with rather than articulated rotating member (86) on eccentric wheel (85), be equipped with spacing through-hole (810) on rotating member (86), fixing base (83) are equipped with bar protruding (811) with spacing through-hole (810) one-to-one, bar protruding (811) card is gone into spacing through-hole (810) when eccentric wheel (85) can't rotate relative lock body (81).

7. The stackable car box according to claim 6, characterized in that the end of the locking element (82) facing the first locking hook (84) is provided with a second locking hook (821) matching with it; the limiting disc (88) is a cylinder, the diameter of the limiting disc (88) is larger than the width of the strip-shaped hole (89), and the end face, facing the locking piece (82), of the limiting disc (88) is mutually attached to the locking piece (82).

8. The stackable vehicle-mounted box according to claim 1, wherein the side surfaces of the box body (1) and the box cover (2) are respectively provided with a first inner concave part (11) for accommodating the locking assemblies (8), each first inner concave part (11) corresponds to each locking assembly (8) one by one, the first inner concave part (11) extends to the box cover (2) along the box body (1), and a second reinforcing rib (9) is arranged at a position adjacent to each first inner concave part (11); the side surfaces of the box body (1) and the box cover (2) are respectively provided with a second concave part (12) for accommodating the hinges (3), and each second concave part (12) corresponds to the hinges (3) one by one; the first concave parts (11) arranged on the front end surface of the box body (1) are opposite to and correspond to the second concave parts (12) arranged on the rear end surface of the box body (1).

9. Stackable car tank according to claim 1, characterized in that the side of the tank body (1) is provided with a balancing valve (13) for regulating the pressure; a first groove (15) is formed in the edge of the box cover (2), and an annular sealing strip (16) for sealing is arranged in the first groove (15); the edge of the box body (1) is provided with a convex rib (17), the outline of the convex rib (17) is matched with the internal outline of the first groove (15), and the convex rib (17) is in extrusion contact with the annular sealing strip (16) when the box body (1) and the box cover (2) are mutually attached.

10. Stackable car box according to claim 1, characterized in that the front face of the box body (1) is provided with a logo frame (14) for mounting a nameplate.