Movable frame and vehicle-mounted refrigerator

Abstract

The invention discloses a movable frame and a vehicle-mounted refrigerator, and relates to the technical field of automobile parts. The device comprises a bearing seat, a mounting plate is horizontally and slidably mounted at the top of the bearing seat, and the top surface of the mounting plate is a placement surface; the connecting piece is mounted on the bearing seat, and the bearing seat is mounted on the armrest box through the connecting piece; the brake mechanism comprises a brake rod which is rotatably mounted on the bearing seat, the brake rod is in coupling connection with the mounting plate, and when the mounting plate moves, the brake rod rotates along with the mounting plate. When a passenger on a rear seat needs to use the vehicle-mounted refrigerator, the mounting plate can be pulled at the moment, so that the vehicle-mounted refrigerator is close to the passenger on the rear seat, the passenger on the rear seat can use the vehicle-mounted refrigerator more conveniently, and when the vehicle-mounted refrigerator slides to the position close to the rear seat and encounters sudden braking, the vehicle-mounted refrigerator can also achieve rapid braking, and the vehicle-mounted refrigerator is convenient to use. And a good protection effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive accessories, and particularly relates to a mobile frame and a vehicle-mounted refrigerator. Background Art

[0002] In the field of vehicle-mounted devices, as an important device for enhancing driving and riding comfort, the installation position and fixing method of a vehicle-mounted refrigerator directly affect the convenience and safety of use.

[0003] Existing small cars generally have five seats, and the vehicle-mounted refrigerator is generally placed in the foot area of the rear seat. However, the space in the foot area of the rear seat is narrow. After installing the vehicle-mounted refrigerator, it seriously affects the leg movement of passengers, and it is inconvenient for the front and rear seat passengers to pick up items, as they need to bend down or turn around significantly.

[0004] Therefore, the present invention proposes a mobile frame and a vehicle-mounted refrigerator. Summary of the Invention

[0005] The purpose of the present invention is to provide a mobile frame and a vehicle-mounted refrigerator to solve the problems in the above background art.

[0006] The present invention specifically adopts the following technical solutions to achieve the above purpose: A mobile frame, comprising: A bearing seat, on the top of which an installation plate is horizontally slidably installed, and the top surface of the installation plate is a placement surface; A connecting member, installed on the bearing seat, through which the bearing seat is installed on the armrest box; A braking mechanism, including a braking rod rotatably installed on the bearing seat, the braking rod being coupled to the installation plate. When the installation plate moves, the braking rod rotates accordingly. A limiting mechanism acting on the braking rod is installed on the bearing seat. When the installation plate moves rapidly by inertia and drives the braking rod to have a tendency to rotate rapidly, the rotation of the braking rod is restricted by the limiting mechanism to form a limit on the movement of the installation plate.

[0007] Further, a through groove is formed on one side of the bearing seat along its length direction. A connecting convex plate passing through the through groove and located inside the bearing seat is installed on the installation plate. A first rack is installed on the connecting convex plate. A first gear meshing with the first rack is installed inside the bearing seat through a rotating rod. A large-diameter bevel gear is installed on the rotating rod, and a small-diameter bevel gear meshing with the large-diameter bevel gear is installed on the braking rod.

[0008] Further, the limiting mechanism includes a mounting disk sleeved on the brake rod. A plurality of mounting grooves are annularly and arrayedly formed on the outer peripheral side of the mounting disk. A limiting plate is slidably mounted in the mounting groove. A ring plate coaxial with the mounting disk is mounted on the bearing seat. A plurality of positioning clamping plates for contacting the limiting plate are circularly and arrayedly mounted on the inner peripheral side of the ring plate. A pushing member is mounted in the mounting groove. When the brake rod rotates rapidly, one end of the limiting plate is extended out of the mounting groove through the pushing member.

[0009] Further, the pushing member includes a ball arranged in the mounting groove. A push plate is elastically and slidably mounted in the mounting groove. The push plate is connected to one end of the limiting plate close to the ball.

[0010] Further, the mounting groove is obliquely formed. The lowest end of the mounting groove is close to the axis of the mounting disk, and the highest end of the mounting groove penetrates through the outer peripheral side of the mounting disk.

[0011] Further, a sliding plate is slidably mounted on one side of the bearing seat along its length direction. A sliding groove is formed on one side of the sliding plate. The mounting plate is slidably mounted in the sliding groove. The sliding plate is located between the mounting plate and the bearing seat. A strip-shaped convex plate is slidably mounted on one side of the bearing seat away from the sliding plate. A notch cavity is formed on the strip-shaped convex plate. One end of the notch cavity is a notch. The connecting convex plate penetrates through the notch cavity. A second rack is mounted on the strip-shaped convex plate. The second rack meshes with the first gear.

[0012] Further, a second gear is rotatably mounted on the bearing seat. The second rack meshes with the second gear. The first gear and the second gear are synchronously connected through a chain assembly. When the first rack disengages from the first gear, the first rack meshes with the second gear.

[0013] Further, sliding slots are formed on opposite sides of the bearing seat along its length direction. The connecting member includes a plurality of connecting cylinders detachably and slidably mounted on the sliding slots. One end inside the connecting cylinder is rotatably mounted with an adjusting screw rod. A driving block is slidably inserted into the connecting cylinder. The adjusting screw rod threadedly penetrates through the driving block. A pressing strip plate for contacting the armrest box is arranged on one side of the driving block located outside.

[0014] Further, the pressing strip plate is tightly and rotatably mounted on the driving block. The pressing strip plate can be rotated to the end face located outside the driving block. A plugging slot is formed on the pressing strip plate. A plugging plate is slidably mounted on one side of the driving block. When the pressing strip plate is vertically downward, the plugging plate can be slidably inserted into the plugging slot. A lifting assembly is mounted at the bottom of the bearing seat.

[0015] The present invention also provides a vehicle-mounted refrigerator, which includes the above-mentioned mobile frame and a refrigerator main body. A docking frame is installed at the bottom end of the refrigerator main body. Convex blocks are formed on two opposite sides of the docking frame, and arc-shaped slots are formed through the convex blocks. A rotating shaft rod is rotatably installed on the mounting plate. A connecting plate is formed on the outer side of the rotating shaft rod, and an arc-shaped insertion plate for inserting into the arc-shaped slot is formed on the connecting plate.

[0016] The beneficial effects of the present invention are as follows: When the passengers in the back seat need to use the vehicle-mounted refrigerator, the mounting plate can be pulled at this time, so that the vehicle-mounted refrigerator is closer to the passengers in the back seat, which is more convenient for the passengers in the back seat to use the vehicle-mounted refrigerator. Moreover, when the vehicle-mounted refrigerator slides to a position close to the back seat and encounters an emergency brake, the vehicle-mounted refrigerator can also achieve rapid braking, having a good protection effect. Description of the Drawings

[0017] Figure 1 is the overall structure diagram of the present invention; Figure 2 is the present invention Figure 1 partial three-dimensional sectional view; Figure 3 is the present invention Figure 1 another partial three-dimensional sectional view; Figure 4 is the present invention Figure 1 state diagram when installed on the armrest box; Figure 5 is the present invention Figure 1 state diagram when located inside the armrest box; Figure 6 is the present invention Figure 5 partial three-dimensional sectional view; Figure 7 is the state diagram after the mounting plate of the present invention is pulled; Figure 8 is the present invention Figure 7 schematic diagram from another perspective; Figure 9 is the schematic diagram of part of the structure of the present invention; Figure 10 is the structure diagram of the mounting disc of the present invention; Figure 11 is the present invention Figure 10 partial three-dimensional sectional view; Figure 12 is the structure diagram of the connecting cylinder of the present invention; Figure 13 is the present invention Figure 12 partial 1 three-dimensional sectional view; Figure 14 is the present invention Figure 2 enlarged view of the structure at A in the present invention; Figure 15 is the enlarged view of the structure at position B in the present invention Figure 3 ; Figure 16 is the enlarged view of the structure at position C in the present invention Figure 11 ;

[0018] Reference numerals: 1, bearing seat; 2, mounting plate; 3, connecting member; 301, connecting cylinder; 302, adjusting screw; 303, driving block; 4, limiting mechanism; 401, mounting disc; 402, mounting groove; 403, limiting plate; 404, annular plate; 405, positioning clamping plate; 5, braking rod; 6, through groove; 7, connecting convex plate; 8, first rack; 9, first gear; 10, rotating rod; 11, large-diameter bevel gear; 12, small-diameter bevel gear; 13, pushing member; 1301, ball; 1302, push plate; 14, sliding plate; 15, sliding groove; 16, strip-shaped convex plate; 17, notch cavity; 18, second rack; 19, second gear; 20, sliding slot; 21, pressing strip plate; 22, inserting slot; 23, inserting plate; 24, lifting assembly; 25, refrigerator main body; 26, docking frame; 27, convex block; 28, arc-shaped slot; 29, rotating shaft rod; 30, connecting plate; 31, arc-shaped inserting plate Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention

[0020] As Figures 1 - 16 shown, a moving frame proposed in an embodiment of the present invention includes: A bearing seat 1, on the top of which a mounting plate 2 is horizontally slidably mounted. The top surface of the mounting plate 2 is a placement surface for mounting the refrigerator main body 25. In this embodiment, the refrigerator main body 25 can be mounted on the mounting plate 2 by means of bolt mounting A connecting member 3, which is mounted on the bearing seat 1, and through which the bearing seat 1 is mounted on the armrest box. Specifically, the armrest box is the part between the front rows of an existing vehicle. That is to say, the refrigerator main body 25 is located above the armrest box, which is more convenient for the front-seat passengers to use the refrigerator main body 25 and does not occupy the foot placement area of the rear-seat passengers, ensuring the comfort of the rear-seat passengers The braking mechanism includes a brake rod 5 rotatably mounted on a bearing seat 1. The brake rod 5 is coupled to a mounting plate 2. When the mounting plate 2 moves, the brake rod 5 rotates accordingly. A limiting mechanism 4 acting on the brake rod 5 is mounted on the bearing seat 1. When the mounting plate 2 moves rapidly due to inertia and drives the brake rod 5 to have a tendency to rotate rapidly, the rotation of the brake rod 5 is restricted by the limiting mechanism 4 to limit the movement of the mounting plate 2. That is to say, when the vehicle suddenly brakes during driving, due to the effect of inertia, the mounting plate 2 will be driven to move rapidly. Since the mounting plate 2 is coupled to the brake rod 5, the mounting plate 2 will drive the brake rod 5 to rotate rapidly when it moves rapidly. As the brake rod 5 rotates rapidly, the brake rod 5 will be limited by the cooperation of the limiting mechanism 4, thus preventing the brake rod 5 from rotating. Since the brake rod 5 is coupled to the mounting plate 2, when the brake rod 5 is limited, it is equivalent to limiting the movement of the mounting plate 2, thereby realizing the limitation of the refrigerator main body 25 mounted on the mounting plate 2. Effectively, in the face of a sudden brake, it can prevent the refrigerator main body 25 from sliding out, playing a good protective role. Moreover, when the passengers in the back seat need to use the refrigerator main body 25, at this time, the mounting plate 2 can be pulled, so that the refrigerator main body 25 is close to the passengers in the back seat, making it more convenient for the passengers in the back seat to use the refrigerator main body 25. And when the refrigerator main body 25 slides to a position close to the back seat, in case of an emergency brake, the refrigerator main body 25 can also be quickly braked, having a good protective effect.

[0021] As Figure 2 , Figure 9 and Figure 14 shown, the specific transmission method between the brake rod 5 and the mounting plate 2 is disclosed, thus realizing the technical feature of the mutual linkage between the brake rod 5 and the mounting plate 2. Specifically, a through groove 6 is formed on one side of the bearing seat 1 along its length direction. A connecting convex plate 7 passing through the through groove 6 and located inside the bearing seat 1 is mounted on the mounting plate 2. A first rack 8 is mounted on the connecting convex plate 7. A first gear 9 meshing with the first rack 8 is mounted inside the bearing seat 1 through a rotating rod 10. A large-diameter bevel gear 11 is mounted on the rotating rod 10. A small-diameter bevel gear 12 meshing with the large-diameter bevel gear 11 is mounted on the brake rod 5. That is to say, when the mounting plate 2 moves, the movement of the mounting plate 2 will drive the first rack 8 connected thereto to move. Since the first rack 8 meshes with the first gear 9, when the mounting plate 2 moves, the first gear 9 will rotate. And when the first gear 9 rotates, it will drive the large-diameter bevel gear 11 connected thereto to rotate. Since the large-diameter bevel gear 11 meshes with the small-diameter bevel gear 12, when the large-diameter bevel gear 11 rotates, the small-diameter bevel gear 12 will rotate rapidly, causing the brake rod 5 to rotate rapidly. In case of a brake, a small movement of the mounting plate 2 will drive the brake rod 5 to rotate greatly. By increasing the rotation speed of the brake rod 5, the limiting mechanism 4 can be quickly triggered.

[0022] AsFigures 10 - 11 , Figure 14 and Figure 15 As shown in and

[0023] , the specific structure of the limit mechanism 4 is disclosed. The limit mechanism 4 includes a mounting plate 401 sleeved on the brake rod 5. The mounting plate 401 rotates together with the brake rod 5. A plurality of mounting grooves 402 are annularly arranged on the outer peripheral side of the mounting plate 401. A limit plate 403 is slidably mounted in the mounting groove 402. A ring plate 404 coaxial with the mounting plate 401 is mounted on the bearing seat 1. A plurality of positioning cards 405 for contacting the limit plate 403 are circularly arranged on the inner peripheral side of the ring plate 404. A pushing member 13 is mounted in the mounting groove 402. When the brake rod 5 rotates rapidly, one end of the limit plate 403 is extended out of the mounting groove 402 by the pushing member 13. That is to say, when the brake rod 5 rotates rapidly, the brake rod 5 drives the mounting plate 401 to rotate rapidly. With the rapid rotation of the mounting plate 401, at this time, the pushing member 13 causes the limit plate 403 to move away from the axis of the mounting plate 401, so that one end of the limit plate 403 extends out. During this process, because the mounting plate 401 is still in a rotating state, the extended limit plate 403 contacts one side of one of the positioning cards 405. The positioning card 405 intercepts the limit plate 403 and interferes with the movement of the limit plate 403, thereby restricting the rotation of the mounting plate 401 and finally restricting the rotation of the brake rod 5. When the brake rod 5 cannot rotate, the mounting plate 2 is also limited, so the position of the refrigerator body 25 is locked.

[0023] As Figure 14 and Figure 15 shown in and

[0024] , in some embodiments, the pushing member 13 includes a ball 1301 arranged in the mounting groove 402. A push plate 1302 is elastically slidably mounted in the mounting groove 402. The push plate 1302 is mounted in the mounting groove 402 through a spring. The push plate 1302 is connected to one end of the limit plate 403 close to the ball 1301. Specifically, the diameter of the mounting plate 401 should be as large as possible. In this way, when the mounting plate 401 rotates rapidly, the centrifugal force will be increased, and the ball 1301 will roll away from the axis of the mounting plate 401, causing the ball 1301 to roll rapidly, driving the ball 1301 to push the corresponding push plate 1302, forcing one end of the limit plate 403 to be located outside. Preferably, the positioning card 405 can be made of hard rubber material with good strength. When the limit plate 403 impacts on the positioning card 405, the positioning card 405 can also have a certain buffering effect. After sudden braking, at this time, the push plate 1302 will reset, synchronously driving the end of the limit plate 403 to reset into the mounting groove 402. At this time, the mounting plate 2 can be moved normally.

[0024] As Figure 14 and Figure 15 ​As shown, in some embodiments, the installation groove 402 is inclined, the lowest end of the installation groove 402 is close to the axis of the installation disk 401, the highest end of the installation groove 402 passes through the outer peripheral side of the installation disk 401. The inclined design of the installation groove 402 enables the ball 1301 to move to the lowest end of the installation groove 402 due to its own gravity after a sudden brake. When encountering a braking situation next time, because of the inclined design of the installation groove 402, it can ensure that some of the balls 1301 are located at the lowest end of the installation groove 402, thereby increasing the movement stroke of some of the balls 1301, so that the ball 1301 has a stronger impact force when contacting the push plate 1302, so that the limiting plate 403 can be quickly extended, improving the braking effect. Specifically, a spring is installed between the push plate 1302 and the highest end of the installation groove 402. As Figure 14 shown, when the ball 1301 rolls, since the spring and the ball 1301 are separated by the push plate 1302, this will not affect the rolling of the ball 1301.

[0025] As Figure 7 and Figure 9 shown, in some embodiments, a sliding plate 14 is slidably installed on one side of the bearing seat 1 along its length direction. A sliding groove 15 is formed on one side of the sliding plate 14. The mounting plate 2 is slidably installed in the sliding groove 15. The sliding plate 14 is located between the mounting plate 2 and the bearing seat 1. A strip-shaped convex plate 16 is slidably installed on the side of the bearing seat 1 away from the sliding plate 14. A notch cavity 17 is formed on the strip-shaped convex plate 16. The notch cavity 17 is in communication with the through groove 6 to ensure that the connecting convex plate 7 can normally pass through the notch cavity 17 and the through groove 6. One end of the notch cavity 17 is a notch. As Figure 9 shown, the connecting convex plate 7 passes through the notch cavity 17. The design of the notch enables the mounting plate 2 to pass through the notch when moving, ensuring the moving stroke of the mounting plate 2. A second rack 18 is installed on the strip-shaped convex plate 16. The second rack 18 meshes with the first gear 9. Preferably, rubber strips are provided on both the sliding groove 15 and the bearing seat 1. The rubber strips on the sliding plate 14 are in close contact with the bearing seat 1, and the rubber strips in the sliding groove 15 are in close contact with the mounting plate 2. In this way, when a passenger pulls the mounting plate 2, there will be a certain resistance and it is not easy to accidentally trigger the limiting mechanism 4. The design of the sliding plate 14 effectively increases the sliding stroke of the mounting plate 2 and because the mounting plate 2 is located on one side of the bearing seat 1, it occupies a small space, enabling the rear seat passengers to better move the refrigerator main body 25 to their side and better take the items in the refrigerator main body 25.

[0026] As Figure 9 and Figure 14As shown, in some embodiments, a second gear 19 is rotatably installed on the carrier seat 1. The second rack 18 meshes with the second gear 19. The first gear 9 and the second gear 19 are synchronously connected through a chain assembly. Specifically, sprockets are installed on the first gear 9 and the second gear 19, and a chain is synchronously installed between the two sprockets to ensure the linkage between the first gear 9 and the second gear 19. When the first rack 8 disengages from the first gear 9, the first rack 8 meshes with the second gear 19. Specifically, the friction between the mounting plate 2 and the sliding groove 15 is less than the friction between the sliding plate 14 and the carrier seat 1. In this way, when moving the mounting plate 2, the sliding plate 14 will be driven first. When the sliding plate 14 moves to the maximum limit position, continuing to pull the mounting plate 2 will cause the mounting plate 2 to move within the sliding groove 15. In this way, when the sliding plate 14 moves, the mounting plate 2 also moves relative to the carrier seat 1. At this time, the second rack 18 on the strip-shaped convex plate 16 meshes with the first gear 9 and the second gear 19. Therefore, when the sliding plate 14 moves, the strip-shaped convex plate 16 will also move. After the sliding plate 14 moves to the maximum limit position, the strip-shaped convex plate 16 also moves to the maximum limit position, and the second rack 18 on the strip-shaped convex plate 16 just disengages from the second gear 19 at this time. Therefore, the strip-shaped convex plate 16 will not move further at this time. Specifically, a baffle for limiting the movement of the strip-shaped convex plate 16 is provided on one side of the carrier seat 1. At this time, when the mounting plate 2 is moved further, the mounting plate 2 will move within the sliding groove 15. During the movement of the mounting plate 2, the first rack 8 on the mounting plate 2 will gradually disengage from the first gear 9 and then mesh with the second gear 19, thus not affecting the limitation of the brake lever 5 during braking, effectively increasing the movement stroke without affecting the limitation of the brake lever 5, and further improving the use effect.

[0027] As Figure 7 and Figure 12 shown, in some embodiments, sliding slots 20 are formed on opposite sides of the carrier seat 1 in the length direction. The connecting member 3 includes a plurality of connecting cylinders 301 detachably and slidably installed on the sliding slots 20. One end inside the connecting cylinder 301 is rotatably installed with an adjusting screw 302. A driving block 303 is slidably inserted into the connecting cylinder 301. The adjusting screw 302 threadedly penetrates through the driving block 303. A pressing strip plate 21 for contacting the armrest box is provided on one side of the driving block 303 located outside. It should be noted that the cover plate on the top of the armrest box of some vehicles may be outwardly curved. Therefore, the bottom of the carrier seat 1 can be designed as a concave arc surface according to needs. The pressing strip plate 21 can press against one side of the armrest box cover plate, which can facilitate taking items inside the armrest box. After the carrier seat 1 fits with the top of the armrest box, the adjusting screw 302 can be rotated at this time to make the pressing strip plate 21 press against one side of the armrest box. The number of the connecting cylinders 301 can be four, and they are symmetrically distributed in pairs of two to improve the installation effect.

[0028] AsFigure 1 , Figure 6 and Figure 12 As shown, in some embodiments, the pressing strip 21 is tightly rotatably mounted on the driving block 303, and the pressing strip 21 can be rotated to an end surface located outside the driving block 303. The pressing strip 21 is provided with a plug-in slot 22, and a plug-in plate 23 is slidably mounted on one side of the driving block 303. When the pressing strip 21 is vertically downward, the plug-in plate 23 can be slidably inserted into the plug-in slot 22, and a lifting component 24 is installed at the bottom of the bearing seat 1, as shown in FIG. Figure 6 As shown, the lifting assembly 24 can be an existing small lift, which is driven by a motor and occupies a small space. If the volume of the refrigerator body 25 is small and can be placed directly in the armrest box, and the armrest box does not need to place other items, then the lifting assembly 24 can be combined with the support seat 1, which can further reduce the occupied space. In order to prevent the clamping strip 21 from affecting the contact between the support seat 1 and the top mounting surface of the lifting assembly 24, the plug-in plate 23 can be moved to disengage the plug-in slot 22, and then the clamping strip 21 is rotated so that the clamping strip 21 is located on the end face of the driving block 303, thereby ensuring the level of the support seat 1, and then there is no need to remove the connecting tube 301 from the sliding slot 20, which further improves the applicability.

[0029] like Figure 1 and Figure 8 The present invention also proposes a vehicle-mounted refrigerator, comprising the above-mentioned mobile frame and a refrigerator body 25, wherein a docking frame 26 is installed at the bottom end of the refrigerator body 25, and protrusions 27 are constructed on the opposite sides of the docking frame 26, and an arc-shaped slot 28 is penetrated through the protrusion 27, and a rotating shaft 29 is rotatably installed on the mounting plate 2, and a connecting plate 30 is constructed on the outer side of the rotating shaft 29, and an arc-shaped plug plate 31 for being inserted into the arc-shaped slot 28 is constructed on the connecting plate 30. After placing the docking frame 26 on the top of the mounting plate 2, the rotating shaft 29 is then rotated, and the arc-shaped plug plate 31 is inserted into the arc-shaped slot 28, thereby completing the rapid installation of the refrigerator body 25, and the installation is simple and quick.

[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mobile framework, characterized in that: include: A bearing seat (1), a mounting plate (2) being horizontally slidably mounted on the top of the bearing seat (1); A connecting member (3) is mounted on the bearing seat (1), and the bearing seat (1) is mounted on the armrest box through the connecting member (3); The brake mechanism comprises a brake rod (5) rotatably mounted on a bearing seat (1), the brake rod (5) being coupled to a mounting plate (2), and when the mounting plate (2) moves, the brake rod (5) rotates accordingly, and a limiting mechanism (4) acting on the brake rod (5) is mounted on the bearing seat (1), and when the mounting plate (2) moves rapidly due to inertia to drive the brake rod (5) to have a tendency to rotate rapidly, the limiting mechanism (4) is used to limit the rotation of the brake rod (5), so as to form a movement of the limiting mounting plate (2).

2. A mobile frame according to claim 1, characterized in that: A through slot (6) is provided on one side of the bearing seat (1) along its length direction; a connecting protrusion (7) is installed on the mounting plate (2) and passes through the through slot (6) and is located in the bearing seat (1); a first rack (8) is installed on the connecting protrusion (7); a first gear (9) meshing with the first rack (8) is installed in the bearing seat (1) via a rotating rod (10); a large-diameter bevel gear (11) is installed on the rotating rod (10); and a small-diameter bevel gear (12) meshing with the large-diameter bevel gear (11) is installed on the brake rod (5).

3. A mobile frame according to claim 1, characterized in that: The limiting mechanism (4) comprises a mounting plate (401) sleeved on the brake rod (5); a plurality of mounting grooves (402) are provided in an annular array on the outer circumference of the mounting plate (401); a limiting plate (403) is slidably installed in the mounting groove (402); a ring plate (404) coaxial with the mounting plate (401) is installed on the bearing seat (1); a plurality of positioning clamping plates (405) for contacting the limiting plate (403) are installed in a circular array on the inner circumference of the ring plate (404); a pushing member (13) is installed in the mounting groove (402); when the brake rod (5) rotates rapidly, the pushing member (13) causes one end of the limiting plate (403) to extend out of the mounting groove (402).

4. A mobile frame according to claim 3, characterized in that: The pushing member (13) comprises a ball (1301) arranged in the installation groove (402), a push plate (1302) is elastically slidably installed in the installation groove (402), and the push plate (1302) is connected to one end of the limiting plate (403) close to the ball (1301).

5. A mobile frame according to claim 4, characterized in that: The installation groove (402) is opened at an angle, the lowest end of the installation groove (402) is close to the axis of the installation plate (401), and the highest end of the installation groove (402) passes through the outer peripheral side of the installation plate (401).

6. A mobile frame according to claim 2, characterized in that: A sliding plate (14) is slidably mounted on one side of the bearing seat (1) along its length direction, a sliding groove (15) is provided on one side of the sliding plate (14), the mounting plate (2) is slidably mounted in the sliding groove (15), the sliding plate (14) is located between the mounting plate (2) and the bearing seat (1), a strip convex plate (16) is slidably mounted on the side of the bearing seat (1) away from the sliding plate (14), a cutout cavity (17) is constructed on the strip convex plate (16), one end of the cutout cavity (17) is a cutout, the connecting convex plate (7) passes through the cutout cavity (17), a second rack (18) is mounted on the strip convex plate (16), and the second rack (18) is meshed with the first gear (9).

7. A mobile frame according to claim 6, characterized in that: A second gear (19) is rotatably mounted on the bearing seat (1), the second rack (18) meshes with the second gear (19), the first gear (9) and the second gear (19) are synchronously connected via a chain assembly, and when the first rack (8) is disengaged from the first gear (9), the first rack (8) meshes with the second gear (19).

8. A mobile frame according to claim 1, characterized in that: The bearing seat (1) is provided with sliding slots (20) on opposite sides in the length direction, and the connecting member (3) includes a plurality of connecting tubes (301) detachably and slidably mounted on the sliding slots (20), an adjusting screw (302) being rotatably mounted inside one end of the connecting tube (301), a driving block (303) being slidably inserted inside the connecting tube (301), the adjusting screw (302) threadably passing through the driving block (303), and a pressing strip (21) for contacting the armrest box being provided on the external side of the driving block (303).

9. A mobile frame according to claim 8, characterized in that: The clamping strip (21) is tightly rotatably mounted on the driving block (303); the clamping strip (21) can be rotated to an end surface located outside the driving block (303); a plug-in slot (22) is provided on the clamping strip (21); a plug-in plate (23) is slidably mounted on one side of the driving block (303); when the clamping strip (21) is vertically downward, the plug-in plate (23) can be slidably inserted into the plug-in slot (22); and a lifting component (24) is installed at the bottom of the bearing seat (1).

10. A vehicle refrigerator, characterized in that: The invention comprises a mobile frame as claimed in any one of claims 1 to 9, and also comprises a refrigerator body (25), a docking frame (26) being installed at the bottom end of the refrigerator body (25), protrusions (27) being constructed on two opposite sides of the docking frame (26), an arc-shaped slot (28) being penetrated through the protrusion (27), a rotating shaft (29) being rotatably installed on the mounting plate (2), a connecting plate (30) being constructed on the outer side of the rotating shaft (29), and an arc-shaped plugging plate (31) being constructed on the connecting plate (30) for being inserted into the arc-shaped slot (28).

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