CN117570633A - Linkage type door closing device of vehicle-mounted refrigerator - Google Patents

Abstract

The invention discloses a linkage type door closing device of a vehicle-mounted refrigerator, which belongs to the technical field of vehicle-mounted refrigerator movement and comprises a refrigerator shell and a drawing piece; the drawing piece is connected with the refrigerator shell in a sliding way; still including supporting spacing subassembly, support spacing subassembly and include support piece and fender position piece, support piece installs and is close to refrigerator shell open end one end at the pull, keeps off the position piece and installs and be close to open end one end at refrigerator shell, support piece has support station and locking station, when support piece is located support station, support piece and fender position piece separation and pull piece can take place to remove relative refrigerator shell, when support piece is located locking station, support piece and fender position piece joint and pull piece are fixed on refrigerator shell. According to the invention, the supporting piece is locked through the gear piece to prevent the drawing piece from sliding out of the refrigerator shell when the vehicle jolts, and the supporting piece always supports the drawing piece to prevent the drawing piece from tilting under the action of gravity in the process of drawing the refrigerator shell, so that the abrasion rate is reduced.

Description

Linkage type door closing device of vehicle-mounted refrigerator

Technical Field

The invention relates to the technical field of vehicle-mounted refrigerator movement, in particular to a linkage type door closing device of a vehicle-mounted refrigerator.

Background

Compared with an open door type vehicle-mounted refrigerator, the drawer type vehicle-mounted refrigerator is more convenient for cleaning the inside, has a better limiting function when the door is opened, and prevents users from being injured due to jolt of the vehicle.

For example, CN217636372U discloses a pull-type vehicle-mounted refrigerator, a refrigerator box with an open upper part is arranged in the refrigerator body of the pull-type vehicle-mounted refrigerator, a sliding groove/sliding block is arranged on the bottom wall of the inner cavity of the refrigerator body, and the sliding block/sliding groove arranged at the bottom of the refrigerator box and the sliding groove/sliding block on the bottom wall of the refrigerator body form sliding fit in the groove length direction.

The above patent has the following drawbacks: 1. when the drawer is pulled out, the pulled out part is hesitant to gravity to influence the falling, so that the other part is tilted, abrasion is easy to cause in the pulling process, and the limiting effect is also influenced; 2. when the drawer needs to be cleaned or replaced, the structures such as the sliding blocks below the drawer need to be replaced synchronously, and the cost is high and inconvenient.

Disclosure of Invention

In order to solve the technical problems in the background technology, the invention provides a linkage type door closing device of a vehicle-mounted refrigerator.

The invention provides a linkage type door closing device of a vehicle-mounted refrigerator, which comprises a refrigerator shell and a drawing piece; the drawing piece is connected with the refrigerator shell in a sliding way; still including supporting spacing subassembly, support spacing subassembly and include support piece and fender position piece, support piece installs and is close to refrigerator shell open end one end at the pull, keeps off the position piece and installs and be close to open end one end at refrigerator shell, support piece has support station and locking station, when support piece is located support station, support piece and fender position piece separation and pull piece can take place to remove relative refrigerator shell, when support piece is located locking station, support piece and fender position piece joint and pull piece are fixed on refrigerator shell.

In the invention, the provided linkage type door closing device of the vehicle-mounted refrigerator comprises a support piece, a first accommodating groove, a first elastic piece, a sliding column and a roller; the first accommodating groove is formed in the bottom end of the drawing piece, the opening of the first accommodating groove is downward, the first elastic piece is arranged between the sliding column and the inner wall of the first accommodating groove, the sliding column is positioned in the first accommodating groove, the roller is arranged at the bottom end of the sliding column, when the supporting piece is positioned at the supporting station, the deformation amount of the first elastic piece is smaller than that when the supporting piece is positioned at the locking station, and the roller is separated from the gear piece; when the support piece is located the locking station, first elastic component compresses, gyro wheel and fender position piece joint.

In the vehicle-mounted refrigerator linkage type door closing device, one end, close to the opening end, of the refrigerator shell is provided with the guide piece, the guide piece is consistent with the length direction of the refrigerator shell, one end, facing the opening end of the refrigerator shell, of the guide piece is an inclined surface which is inclined downwards, the gear piece is arranged on the guide piece, the support piece is further provided with a preparation station, and when the support piece is positioned at the preparation station and the locking station, the support piece is connected with the guide piece.

The invention provides a linkage type door closing device of a vehicle-mounted refrigerator, wherein a gear piece comprises an inclined baffle plate, a sliding block, a sliding chute and a third elastic piece; the sliding groove is formed in the guide piece, the opening of the sliding groove faces upwards, the inclined baffle is arranged at one end, close to the inclined surface, of the guide piece, the highest point of the inclined surface is flush with the lowest point of the inclined baffle, the bottom end of the sliding block is in sliding connection with the sliding groove, the third elastic piece is arranged between the sliding block and the inner wall of the sliding groove, and when the supporting piece is located at a supporting station, the supporting piece is clamped between the inclined baffle and the sliding block; when the support member is located at the locking station, the support member is disengaged from the inclined baffle and the support member is located at an end of the inclined baffle adjacent to the open end.

In the invention, the two ends of the sliding block along the length direction of the sliding groove are inclined planes, the inclined plane of one end of the sliding block, which is close to the inclined baffle, is parallel to the bottom surface of the inclined baffle, and the highest point of the sliding block is lower than the highest point of the top end of the bottom surface of the inclined baffle, and the top end of the sliding block is flush with the top end of the inclined baffle.

In the invention, the supporting and limiting assembly further comprises an auxiliary door opening assembly, the auxiliary door opening assembly is arranged on the inner wall of one end of the refrigerator shell far away from the opening end, and the auxiliary door opening assembly is in contact connection with the drawing piece when the drawing piece is closed.

In the invention, the pull piece is provided with the mounting piece and the first assembly piece, the third assembly piece is mounted on the mounting piece, the pull piece is also connected with the storage box, one end of the storage box, which is close to the open end of the refrigerator shell, is connected with the second assembly piece, the third assembly piece is clamped with the second assembly piece, and the first assembly piece is connected with the storage box.

In the invention, a second assembly part is arranged at one end of a storage box, which is close to the opening end of a refrigerator shell, and a limit mounting groove is arranged at the bottom end of the storage box; after the storage box is assembled, the third assembly piece is clamped with the second assembly piece, and the limit mounting groove is clamped with the first assembly piece.

In the invention, the provided linkage type door closing device of the vehicle-mounted refrigerator comprises a limiting slide bar, a gear inclined block and a second elastic piece; the limiting slide bar is slidably mounted on the mounting piece, the width direction of the limiting slide bar is consistent with that of the drawing piece, the gear inclined block is mounted at one end of the limiting slide bar, which is close to the storage box, the second elastic piece is mounted between one end of the limiting slide bar and the inner wall of the mounting piece, when the storage box is assembled with the drawing piece, the second assembly piece is slidably connected with the gear inclined block, the second elastic piece is compressed, and two ends of the limiting slide bar slide relatively slide with the mounting piece; after the storage box is assembled, the second elastic piece is restored, and the second assembly piece is clamped with the gear inclined block.

In the invention, the first assembly part comprises a mounting plate and a limiting block; the mounting plate is arranged at the bottom end of the drawing piece, the limiting block is arranged at one end of the mounting plate, which is close to the third assembly piece, and the storage box is in sliding connection with the mounting plate when the storage box is assembled with the drawing piece; after the storage box is assembled, the storage box is clamped with the limiting block.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

According to the invention, when the gear piece locks the support piece, the storage box completely enters the refrigerator shell, the support piece locks to prevent the drawing piece from sliding out of the refrigerator shell when a vehicle jolts, and as the inner wall of the opening end of the refrigerator shell in the opposite direction is directly provided with a gap with the outer wall of the drawing piece, the drawing piece can be pushed continuously until the support piece is separated from the clamping connection of the gear piece, at the moment, the auxiliary door opening assembly automatically pushes the drawing piece to remove the refrigerator shell, so that the drawing piece is convenient to draw, the support piece always supports the drawing piece to prevent the drawing piece from tilting under the action of gravity, the abrasion rate is reduced, and the guide piece is guided in the moving process of the drawing piece; the refrigeration unit is used for refrigeration.

According to the invention, when the storage box is required to be cleaned or replaced, the storage box can be detached from the drawing piece only by separating the first assembly piece from the second assembly piece and separating the first assembly piece from the storage box, and the drawing piece does not need to be replaced integrally.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present invention;

FIG. 2 is a front elevational view of the structure of the present invention;

FIG. 3 is a second schematic diagram of the structure of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken along the line B-B of FIG. 2;

FIG. 6 is an enlarged view at C in FIG. 5;

FIG. 7 is an enlarged view of FIG. 5 at D;

fig. 8 is an enlarged view at E in fig. 4.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.

The linkage type door closing device of the vehicle-mounted refrigerator as shown in fig. 1-8 comprises a refrigerator shell 1 and a drawing piece 2;

the drawing piece 2 is connected with the refrigerator shell 1 in a sliding way;

the refrigerator shell 1 and the pull piece 2 are both connected with a supporting and limiting assembly 3, the supporting and limiting assembly 3 comprises a supporting piece 31 and a gear piece 32, the supporting piece 31 is arranged at one end, close to the opening end of the refrigerator shell 1, of the pull piece 2, the gear piece 32 is arranged at one end, close to the opening end, of the refrigerator shell 1, the supporting piece 31 is provided with a supporting station and a locking station, when the supporting piece 31 is located at the supporting station, the supporting piece 31 is separated from the gear piece 32, the pull piece 2 can move relative to the refrigerator shell 1, and when the supporting piece 31 is located at the locking station, the supporting piece 31 is clamped with the gear piece 32, and the pull piece 2 is fixed on the refrigerator shell 1.

The supporting and limiting assembly 3 further comprises an auxiliary door opening assembly 34, the auxiliary door opening assembly 34 is arranged on the inner wall of one end, far away from the opening end, of the refrigerator shell 1, and when the drawing piece 2 is closed, the auxiliary door opening assembly 34 is in contact connection with the drawing piece 2.

Preferably, the auxiliary door opening assembly 34 is a plurality of sets of V-shaped elastic plates 341.

A guide piece 11 is also arranged between the refrigerator shell 1 and the drawing piece 2;

preferably, the guide piece 11 is a sliding groove sliding block module, the sliding groove is formed in the refrigerator shell 1/the drawing piece 2, and the sliding block is arranged on the drawing piece 2/the refrigerator shell 1;

the drawing member 2 is provided with a mounting member 21 and a first assembly member 23, the third assembly member 22 is mounted on the mounting member 21, the drawing member 2 is also connected with a storage box 24, one end, close to the opening end of the refrigerator shell 1, of the storage box 24 is connected with a second assembly member 25, the third assembly member 22 is clamped with the second assembly member 25, and the first assembly member 23 is connected with the storage box 24.

The refrigerator housing 1 is provided at a rear end thereof with a refrigerating unit 4.

The embodiment is in the working process: when the gear 32 locks the support member 31, the storage box 24 completely enters the refrigerator shell 1, the support member 31 locks to prevent the drawer 2 from sliding out of the refrigerator shell 1 when the vehicle jolts, and as the reverse inner wall of the opening end of the refrigerator shell 1 and the outer wall of the drawer 2 are directly provided with gaps, the drawer 2 can be pushed continuously until the support member 31 is separated from the gear 32, at the moment, the auxiliary door opening assembly 33 automatically pushes the drawer 2 to remove the refrigerator shell 1, the drawer 2 is conveniently pulled, the support member 31 always supports the drawer 2 in the process of pulling the refrigerator shell 1, the drawer 2 is prevented from tilting under the action of gravity, the abrasion rate is reduced, and the guide member 11 is guided in the moving process of the drawer 2; the refrigeration unit 4 is used for refrigeration.

When the storage box 24 needs to be cleaned or replaced, the storage box 24 can be detached from the drawing member 2 only by separating the first assembly member 22 from the second assembly member 25 and separating the first assembly member 23 from the storage box 24, and the drawing member 2 does not need to be replaced integrally.

Preferably in the present embodiment, the supporting member 31 includes a first receiving groove 311, a first elastic member 312, a sliding column 313, and a roller 314; the first accommodating groove 311 is formed in the bottom end of the drawing member 2, the opening of the first accommodating groove 311 is downward, the first elastic member 312 is installed between the sliding column 313 and the inner wall of the first accommodating groove 311, the sliding column 313 is located in the first accommodating groove 311, the roller 314 is installed in the bottom end of the sliding column 313, when the supporting member 31 is located at the supporting station, the deformation amount of the first elastic member 312 is smaller than the deformation amount of the supporting member 31 when the supporting member 31 is located at the locking station, and the roller 314 is separated from the gear member 32; when the supporting member 31 is located at the locking station, the first elastic member 312 is compressed, and the roller 314 is engaged with the gear member 32.

Preferably, the first elastic member 312 is a spring and the tip of the sliding column 313 is inserted into the spring.

The refrigerator shell 1 is close to the one end of open end and installs guide 33, guide 33 is guide slot 331, and guide slot 331 is unanimous with the length direction of refrigerator shell 1, and guide slot 331 is seted up in the one end of refrigerator shell 1 open end and guide slot 331 opening is unanimous with refrigerator shell 1 open end orientation, and the bottom surface of guide slot 331 open end one end is the inclined plane down to the open end, and gear 32 installs in guide slot 331, and support piece 31 still has the preparation station, and when support piece 31 was in preparation station and locking station, the deformation volume of first elastic component 312 was less than when support piece 31 was located the deformation volume when support station, support piece 31 contacted with guide slot 331.

The gear member 32 comprises a bevel baffle 321, a sliding block 322, a sliding chute 323 and a third elastic member 324; the chute 323 is arranged at the bottom end of the guide groove 331, the top end of the chute 323 is communicated with the bottom end of the guide groove, the inclined baffle 321 is arranged on the bottom surface of one end of the guide groove 331 close to the inclined plane, the bottom end of the sliding block 322 is in sliding connection with the chute 323, the third elastic piece 324 is arranged between the sliding block 322 and the inner wall of the chute 323, and when the supporting piece 31 is positioned at a supporting station, the supporting piece 31 is clamped between the inclined baffle 321 and the sliding block 324; when the support 31 is in the locking position, the support 31 is disengaged from the bevel gear 321 and the support 31 is positioned at an end of the bevel gear 321 near the open end.

Preferably, both ends of the sliding block 322 along the length direction of the sliding groove 323 are inclined planes, the inclined plane of one end of the sliding block 322 close to the inclined plate 321 is parallel to the bottom surface of the inclined plate 321, and the highest point is lower than the highest point of the top end of the bottom surface of the inclined plate 321, and the top end of the sliding block 322 is flush with the top end of the inclined plate 321.

Preferably, the third elastic member 326 is a compression spring, and the third elastic member 326 is fixedly connected to an end of the chute 325 away from the chute 321;

when the supporting member 31 is located at the locking station, the roller 314 is clamped between the inclined baffle 321 and the sliding block 322 to push the drawing member 2, the roller 314 pushes the sliding block 322 to slide towards the closed end of the guide groove 331 until the third elastic member 324 is compressed to the limit, the roller 314 rolls upwards along the sliding block 322 until the third elastic member 324 stretches to push the sliding block 322 to approach the inclined baffle 321, the drawing member 2 is pulled, the drawing member 2 drives the roller 314 to roll towards the open end of the guide groove 331, the roller 314 drives the sliding block 322 to move towards the inclined baffle 321, one end of the sliding block 322, which is close to the inclined baffle 321, is embedded into the bottom end of the inclined baffle 321, the roller 314 rolls out of the guide groove 331 along the inclined baffle 321 beyond the top end of the sliding block 322 again, meanwhile, the sliding block 322 returns to the original position under the driving of the third elastic member 324, and is clamped and abducted next time, unlocking is achieved, after the roller 314 is separated from the inclined baffle 321, the sliding column 313 drives the roller 314 to slide along the guide groove 331, the sliding column 313 and the sliding column 314 are pushed by the first elastic member 312, and the sliding member 313 always push the sliding column 314 to move towards the open end of the guide groove 331, and the sliding member 2, and damage to the drawing member 2 is prevented.

In this embodiment, preferably, the second assembly 25 is installed at one end of the storage box 24 near the open end of the refrigerator shell 1, a limit installation groove is provided at the bottom end of the storage box 24, and when the storage box 24 is assembled with the drawing member 2, the third assembly 22 is slidably connected with the second assembly 25, and the limit installation groove is slidably connected with the first assembly 23; after the storage box 24 is assembled, the third assembly piece 22 is clamped with the second assembly piece 25, and the limit mounting groove is clamped with the first assembly piece 23;

preferably, the mounting member 21 is a third accommodating groove 211 formed at one end of the drawer 2 facing the open end of the refrigerator housing 1, the length direction of the third accommodating groove 211 is consistent with the width direction of the drawer 2, one end of the third accommodating groove 211 penetrates the drawer 2, the opening of the third accommodating groove 211 faces the storage box 24, and the third assembly member 22 is mounted in the third accommodating groove 211.

The third assembly 22 includes a limit slide 221, a gear ramp 222, and a second elastic member 223; the limiting slide bar 221, the gear inclined blocks 222 and the second elastic piece 225 are all positioned in the third accommodating groove 211, the length direction of the limiting slide bar 221 is consistent with that of the third accommodating groove 211, two groups of gear inclined blocks 222 are arranged at one end of the limiting slide bar 221, which is close to the storage box 24, the second elastic piece 223 is arranged between one end of the limiting slide bar 221 and the inner wall of the closed end of the third accommodating groove 224, the disassembly key 223 is communicated with the outside, when the storage box 24 is assembled with the drawing piece 2, the second assembly piece 25 stretches into the third accommodating groove 211 to be in sliding connection with the gear inclined blocks 222, the second elastic piece 223 is compressed, and two ends of the limiting slide bar 221 slide relatively to the inner wall of the third accommodating groove 211; after the storage box 24 is assembled, the second assembly piece 25 is clamped with the gear inclined block 222.

Preferably, the second assembly 25 is a clamping block 251, when the storage box 24 is assembled with the drawing member 2, the clamping block 251 is slidably connected with the gear inclined block 222, and after the storage box 24 is assembled, the clamping block 251 is clamped with the gear inclined block 222;

the first assembly 23 includes a mounting plate 231 and a stopper 232; the mounting plate 231 is mounted at the bottom end of the drawing member 2, the limiting block 232 is mounted at one end of the mounting plate 231 close to the third assembly member 22, and the limiting mounting groove is in sliding connection with the mounting plate 231 when the storage box 24 is assembled with the drawing member 2; after the storage box 24 is assembled, the limit mounting groove is clamped with the limit block 232.

Mounting the storage box 24: placing the storage box 24 on the drawing piece 2, ensuring that the mounting plate 231 is clamped in the limiting mounting groove, pushing the storage box 24 towards the opening end direction of the refrigerator shell 1, so that the limiting block 232 is clamped with the limiting mounting groove, and limiting the storage box 24 in the up-down direction and the horizontal direction perpendicular to the drawing direction by the mounting plate 231 and the limiting block 232; the storage box 24 drives the clamping block 251 to extend into the third accommodating groove 211 to push the gear inclined block 222, the gear inclined block 222 drives the limiting slide bar 221 to slide, the limiting slide bar 221 drives the gear inclined block 222 to be in a yielding position for the clamping block 251, the second elastic piece 223 pushes the limiting slide bar 221 to reset, and the limiting slide bar 221 drives the gear inclined block 222 to be clamped with the clamping block 251; disassembly of the storage case 24: one end of the limiting slide bar 221 is pushed from the opening end of the third accommodating groove 211, the limiting slide bar 221 drives the gear inclined block 222 to move to be the fixture block 251 for giving way, meanwhile, the storage box 24 is pushed towards the opposite direction of the opening end of the refrigerator shell 1, so that the fixture block 251 and the gear inclined block 222 which are clamped are separated, the storage box 24 is taken out upwards, and after the fixture block 251 and the gear inclined block 222 are separated, the limiting slide bar 221 is pushed by the second elastic piece 223 to reset, so that the installation of the storage box 24 is facilitated.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (10)

1. The linkage type door closing device of the vehicle-mounted refrigerator is characterized by comprising a refrigerator shell (1) and a drawing piece (2);

the drawing piece (2) is in sliding connection with the refrigerator shell (1);

still including supporting spacing subassembly (3), support spacing subassembly (3) including support piece (31) and fender position piece (32), support piece (31) are installed and are close to refrigerator shell (1) open end one end at pull piece (2), fender position piece (32) are installed and are close to open end one end at refrigerator shell (1), support piece (31) have support station and locking station, when support piece (31) are located support station, support piece (31) and fender position piece (32) separation and pull piece (2) can take place to remove relative refrigerator shell (1), when support piece (31) are located locking station, support piece (31) and fender position piece (32) joint and pull piece (2) are fixed on refrigerator shell (1).

2. The vehicle-mounted refrigerator interlocking door closing device according to claim 1, wherein the supporting member (31) comprises a first receiving groove (311), a first elastic member (312), a sliding column (313) and a roller (314); the first accommodating groove (311) is formed in the bottom end of the drawing piece (2), the opening of the first accommodating groove (311) is downward, the first elastic piece (312) is arranged between the sliding column (313) and the inner wall of the first accommodating groove (311), the sliding column (313) is positioned in the first accommodating groove (311), the roller (314) is arranged at the bottom end of the sliding column (313), when the supporting piece (31) is positioned at the supporting station, the deformation amount of the first elastic piece (312) is smaller than that of the supporting piece (31) when the supporting piece (31) is positioned at the locking station, and the roller (314) is separated from the gear piece (32); when the supporting piece (31) is positioned at the locking station, the first elastic piece (312) is compressed, and the roller (314) is clamped with the gear piece (32).

3. The vehicle-mounted refrigerator interlocking door closing device according to claim 1, wherein a guide member (33) is installed at one end of the refrigerator housing (1) close to the opening end, the guide member (33) is consistent with the length direction of the refrigerator housing (1), one end of the guide member (33) facing the opening end of the refrigerator housing (1) is an inclined surface which is inclined downwards, a gear member (32) is installed on the guide member (33), the support member (31) is further provided with a preparation station, and the support member (31) is connected with the guide member (33) when the support member (31) is positioned at the preparation station and the locking station.

4. The interlocking door closing device of a vehicle-mounted refrigerator according to claim 3, wherein the gear member (32) comprises a bevel baffle (321), a sliding block (322), a sliding chute (323) and a third elastic member (324); the sliding chute (323) is arranged on the guide piece (33), the opening of the sliding chute (323) is upward, the inclined baffle (321) is arranged at one end, close to the inclined plane, of the guide piece (33), the highest point of the inclined plane is flush with the lowest point of the inclined baffle (321), the bottom end of the sliding block (322) is in sliding connection with the sliding chute (323), the third elastic piece (324) is arranged between the sliding block (322) and the inner wall of the sliding chute (323), and when the supporting piece (31) is positioned at the locking station, the supporting piece (31) is clamped between the inclined baffle (321) and the sliding block (324); when the supporting piece (31) is positioned at the supporting station, the supporting piece (31) is separated from the inclined baffle plate (321), and the supporting piece (31) is positioned at one end of the inclined baffle plate (321) close to the opening end.

5. The interlocking door closing device of a vehicle-mounted refrigerator according to claim 4, wherein both ends of the sliding block (322) along the length direction of the sliding groove (323) are inclined planes, the inclined plane of one end of the sliding block (322) close to the inclined plate (321) is parallel to the bottom surface of the inclined plate (321) and the highest point is lower than the highest point of the top end of the bottom surface of the inclined plate (321), and the top end of the sliding block (322) is flush with the top end of the inclined plate (321).

6. The vehicle-mounted refrigerator linkage type door closing device according to claim 1, wherein the supporting and limiting assembly (3) further comprises an auxiliary door opening assembly (34), the auxiliary door opening assembly (34) is installed on the inner wall of one end, far away from the opening end, of the refrigerator shell (1), and when the drawing piece (2) is closed, the auxiliary door opening assembly (34) is in contact connection with the drawing piece (2).

7. The vehicle-mounted refrigerator linkage type door closing device according to claim 1, wherein a mounting piece (21) and a first assembly piece (23) are arranged on the drawing piece (2), a third assembly piece (22) is arranged on the mounting piece (21), the drawing piece (2) is further connected with a storage box (24), one end, close to the opening end of the refrigerator shell (1), of the storage box (24) is connected with a second assembly piece (25), the third assembly piece (22) is clamped with the second assembly piece (25), and the first assembly piece (23) is connected with the storage box (24).

8. The linkage type door closing device of the vehicle-mounted refrigerator according to claim 7, wherein a second assembly piece (241) is installed at one end of the storage box (24) close to the opening end of the refrigerator shell (1), a limit installation groove is formed in the bottom end of the storage box (24), when the storage box (24) is assembled with the drawing piece (2), the third assembly piece (22) is in sliding connection with the second assembly piece (241), and the limit installation groove is in sliding connection with the first assembly piece (23); after the storage box (24) is assembled, the third assembly piece (22) is clamped with the second assembly piece (241), and the limiting mounting groove is clamped with the first assembly piece (23).

9. The vehicle-mounted refrigerator interlocking door closing device according to claim 8, wherein the third assembly member (22) comprises a limit slide bar (221), a gear inclined block (222) and a second elastic member (224); the limiting slide bar (221) is slidably mounted on the mounting piece (21), the width direction of the limiting slide bar (221) is consistent with that of the drawing piece (2), the gear inclined block (222) is mounted at one end, close to the storage box (24), of the limiting slide bar (221), the second elastic piece (225) is mounted between one end of the limiting slide bar (221) and the mounting piece (21), when the storage box (24) is assembled with the drawing piece (2), the second assembly piece (241) is slidably connected with the gear inclined block (222), the second elastic piece (225) is compressed, and two ends of the limiting slide bar (221) slide relatively to the mounting piece (21); after the storage box (24) is assembled, the second elastic piece (225) is restored, and the second assembly piece (241) is clamped with the gear inclined block (222).

10. The vehicle-mounted refrigerator interlock door closing device according to claim 7, wherein the first assembly (23) comprises a mounting plate (231) and a stopper (232); the mounting plate (231) is mounted at the bottom end of the drawing piece (2), the limiting block (232) is mounted at one end, close to the third assembly piece (22), of the mounting plate (231), and when the storage box (24) is assembled with the drawing piece (2), the storage box (24) is in sliding connection with the mounting plate (231); after the storage box (24) is assembled, the storage box (24) is clamped with the limiting block (232).