A vehicle-mounted cooling box

Abstract

The present invention relates to the technical field of in-vehicle cooling boxes, and particularly to an in-vehicle cooling box. Technical problem: The cavity size of existing in-vehicle refrigerators cannot be adjusted, resulting in gaps between the food placed inside the cavity and the inner wall of the in-vehicle refrigerator. The food inside the in-vehicle refrigerator will collide with its inner wall and be damaged. An in-vehicle cooling box includes a box body, on the upper side of which symmetric heat preservation covers are rotatably connected. A partition is fixedly connected to the inner wall of the box body, and the partition divides the box body into two equal storage cavities. Symmetric first sliding grooves are provided in both storage cavities of the box body, and sliding blocks are slidably connected in the symmetric first sliding grooves. There is friction between the sliding blocks and the first sliding grooves. A positioning plate is fixedly connected between the symmetric sliding blocks. The positioning plate limits the beverages and fruits in the box body to prevent the beverages and fruits inside the box body from colliding with the inner wall of the box body during vehicle driving, causing damage to the beverages and fruits.

Description

Technical Field

[0001] The present invention relates to the technical field of in-vehicle cooling boxes, and particularly relates to an in-vehicle cooling box. Background Art

[0002] In hot summer, when a car is exposed to the sun for a long time, the temperature of food such as beverages and fruits in the car rises. Not only are the foods prone to damage and deterioration, but also the drivers and passengers will feel uncomfortable when consuming them. In view of the above situation, more and more private car owners purchase in-vehicle refrigerators. The in-vehicle refrigerators are arranged in the car and used for refrigerating beverages or foods to ensure that there are still refrigerated foods to eat in a high-temperature environment, providing a cool environment for the drivers and passengers.

[0003] Existing in-vehicle refrigerators usually have multiple cavities for holding different types of foods, including foods such as beverages and fruits. However, the cavity sizes of existing in-vehicle refrigerators cannot be adjusted, resulting in gaps between the foods placed inside the cavities and the inner walls of the in-vehicle refrigerators. During vehicle driving, especially when passing through bumpy roads, the foods inside the in-vehicle refrigerators will collide with their inner walls, causing some beverages and fruits to be damaged by the collision, resulting in a bad experience for the drivers and passengers. Summary of the Invention

[0004] In order to overcome the disadvantages of existing in-vehicle refrigerators, the present invention provides an in-vehicle cooling box.

[0005] The technical solution of the present invention is as follows: An in-vehicle cooling box includes a box body. Symmetrical heat preservation covers are rotatably connected to the upper side of the box body. A limit lock for locking the heat preservation covers is arranged on one side of the box body. A partition is fixedly connected to the inner wall of the box body. The partition divides the box body into two equal storage cavities. Symmetrical first chutes are arranged in the two storage cavities of the box body. Sliding blocks are slidably connected in the symmetrical first chutes. When the first chutes are arranged as horizontal chutes, there is friction between the sliding blocks and the first chutes. A positioning plate is fixedly connected between the symmetrical sliding blocks. The positioning plate changes the volume of the storage cavity of the box body according to the placed items and limits the placed items to prevent them from shaking.

[0006] Furthermore, the bottom of the box body is arranged as an inclined surface for guiding the items in the storage cavity of the box body.

[0007] Furthermore, it further includes a traction mechanism for changing the position of the positioning plate. The traction mechanism is arranged inside the box body. The traction mechanism includes a first pulling rope, and the first pulling rope is connected to the positioning plate far from the limit lock. The partition board is provided with a through hole, and the first pulling rope passes through the through hole of the partition board. One side of the inner wall of the box body close to the limit lock is rotatably connected with a first guiding wheel through a mounting seat, and the first pulling rope is wound around the first guiding wheel. The positioning plate close to the limit lock is connected with a second pulling rope. One side of the inner wall of the box body close to the limit lock is rotatably connected with a second guiding wheel through a mounting seat, and the second pulling rope is wound around the second guiding wheel. The upper ends of the first pulling rope and the second pulling rope are fixedly connected with a connecting block. A first fixing plate is fixedly connected to the inner wall of the box body. A connecting plate is fixedly connected between the first pulling rope and the second pulling rope. A first elastic member is fixedly connected between the connecting plate and the first fixing plate. The connecting block is connected with a third pulling rope, and the third pulling rope is set as an elastic rope. The upper part of the inner wall of the box body is rotatably connected with a third guiding wheel through a mounting seat, and the third pulling rope is wound around the third guiding wheel. One side of the inner wall of the box body close to the limit lock is fixedly connected with a second fixing plate, and the second fixing plate is provided with a through hole. The third pulling rope passes through the through hole of the second fixing plate and is fixedly connected to the heat preservation cover on the same side.

[0008] Furthermore, it further includes a protective shell, and the protective shell is fixedly connected to one side of the partition board close to the limit lock. The protective shell is communicated with the through hole of the partition board. The first pulling rope is located inside the protective shell, and the protective shell isolates the first pulling rope from the placed items.

[0009] Furthermore, it further includes symmetrically distributed magnet blocks. The symmetrically distributed magnet blocks are respectively fixedly connected to one side of the first sliding groove close to the limit lock. The sliding block is made of magnetic material, and the sliding block has the same magnetic pole as the magnet block. The magnet blocks are used to overcome the inertia of the positioning plate.

[0010] Furthermore, it further includes symmetrically distributed fixed limiting mechanisms for limiting the positioning plate. The symmetrically distributed fixed limiting mechanisms are respectively arranged on adjacent positioning plates. The fixed limiting mechanism includes a sealing plate. The positioning plate is provided with a cavity. The sealing plate is fixedly connected to the upper side of the positioning plate, and the sealing plate is used to seal the cavity of the positioning plate. The sealing plate is slidably connected with symmetric sliding rods. The upper ends of the sliding rods are rotatably connected with rotating wheels through mounting seats. The lower sides of the symmetric sliding rods are slidably connected with a folded plate. A second elastic member is fixedly connected between the folded plate and the sealing plate. A third elastic member is fixedly connected between the lower ends of the sliding rods and the folded plate through mounting plates. Guide rods are fixedly connected to both ends of the folded plate. Symmetric extrusion limiting components are arranged in the cavity of the positioning plate, and the extrusion limiting components are used to limit the positioning plate by extruding against the inner wall of the box body.

[0011] Further, the extrusion limit assembly includes symmetric fixing rods, and the symmetric fixing rods are fixedly connected to the inner walls of adjacent positioning plates. An L-shaped plate is slidably connected between the adjacent fixing rods. A fourth elastic member is sleeved on the fixing rod, and the two ends of the fourth elastic member are fixedly connected to the adjacent L-shaped plate and the adjacent positioning plate respectively. Through holes are respectively arranged on both sides of the positioning plate, and an extrusion block is slidably connected in the through hole of the positioning plate. The extrusion block is fixedly connected to the adjacent L-shaped plate. The extrusion block is made of an elastic anti-slip material. The L-shaped plate is provided with a second chute, and the guide rod is slidably connected in the adjacent second chute.

[0012] Further, it also includes symmetrically distributed anti-side shift mechanisms for protecting the placed items. The symmetrically distributed anti-side shift mechanisms are respectively arranged on the adjacent positioning plates. The buffer mechanism includes an elastic airbag, and the elastic airbag is installed on the side of the positioning plate away from the limit lock. The positioning plate is fixedly connected with a fixed shell, and the fixed shell is communicated with the adjacent elastic airbag through a conduit. A piston plate is slidably connected in the fixed shell, and the piston plate is fixedly connected with a support rod. The positioning plate is provided with a pressure regulating component for adjusting the pressure of the elastic airbag.

[0013] Further, the pressure regulating component includes a fourth pull rope. The sealing plate is provided with a through hole, and the fourth pull rope is slidably connected in the through hole of the sealing plate. The folded plate is provided with a circular through hole, and the fourth pull rope passes through the circular through hole of the folded plate. One end of the fourth pull rope close to the fixed shell is fixedly connected with a limit disc for limiting the position of the folded plate. A sliding frame is slidably connected to the upper side of the positioning plate, and the upper end of the fourth pull rope is fixedly connected with the sliding frame. The positioning plate is fixedly connected with symmetric limit plates, and the limit plates are provided with equally spaced limit grooves. The sliding frame is slidably connected with an n-shaped frame, and the n-shaped frame is in limit cooperation with the adjacent limit plates.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. Through the friction force between the rotating wheel and the heat preservation cover, during the fixing process of the positioning plate, it is prevented that the positioning plate moves to the right to generate a gap between the beverage and the fruit, and at the same time, during the fixing process of the positioning plate, it cannot continue to move to the left to squeeze the beverage and the fruit, avoiding long-term extrusion damage to items such as fruits.

[0016] 2. The positioning plate limits the beverage and fruit in the box, avoiding the collision between the beverage and fruit inside the box and the inner wall of the box during the vehicle driving process, resulting in damage to the beverage and fruit.

[0017] 3. By using the process of opening the heat preservation cover and cooperating with the third pull rope, the first pull rope and the second pull rope, the two positioning plates are synchronously pulled to the right, and the two positioning plates move to the right as the heat preservation cover is opened, facilitating the placement and taking of beverages and fruits into and out of the box.

[0018] 4. The positioning plate is fixed by the frictional force between the squeezing blocks on both sides and the inner wall of the box, which improves the stability of the positioning plate, prevents the positioning plate from shifting to the right during vehicle driving, and avoids the generation of gaps between the beverages and fruits, thus preventing the beverages and fruits from hitting the inner wall of the box and being damaged.

[0019] 5. During the process of the first pulling rope and the second pulling rope towing the positioning plate, the protective shell protects the first pulling rope, preventing the first pulling rope from coming into contact with the items placed between the right positioning plate and the partition, which may cause friction on the first pulling rope and hinder the left positioning plate from moving leftward for reset; the repulsive force of the magnet block on the adjacent sliding block is used to push the positioning plate, providing an initial driving force for the positioning plate to move leftward, and preventing the positioning plate from remaining stationary on the right side of the first chute due to inertia, resulting in obstruction of the leftward movement of the positioning plate.

[0020] 6. The elastic airbag deforms to squeeze the placed objects, improving the stability of the items placed in the box and preventing the placed objects from sliding back and forth in the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 2 It is a three-dimensional sectional structural schematic diagram of the box body of the present invention.

[0023] Figure 3 It is an enlarged three-dimensional structural schematic diagram of part A of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of parts such as the connecting plate and the first elastic member of the present invention.

[0025] Figure 5 It is a side three-dimensional structural schematic diagram of parts such as the positioning plate of the present invention.

[0026] Figure 6 It is a sectional three-dimensional structural schematic diagram of the positioning plate of the present invention.

[0027] Figure 7 It is an enlarged three-dimensional structural schematic diagram of part B of the present invention.

[0028] Figure 8 It is a three-dimensional structural schematic diagram of parts such as the sliding frame and the limiting plate of the present invention.

[0029] The markings of each component in the attached drawings are as follows: 101: box body, 102: heat preservation cover, 103: limit lock, 104: partition board, 105: first chute, 106: sliding block, 107: positioning plate, 201: first pull rope, 2011: first guide pulley, 202: second pull rope, 2021: second guide pulley, 203: connecting block, 204: first fixing plate, 205: connecting plate, 206: first elastic member, 207: third pull rope, 2071: third guide pulley, 208: second fixing plate, 209: protective shell, 210: magnet block, 301: sealing plate, 302: sliding rod, 303: rotating wheel, 304: folded plate, 3041: second elastic member, 305: third elastic member, 306: guide rod, 307: fixed rod, 308: L-shaped plate, 309: fourth elastic member, 310: extrusion block, 311: second chute, 401: elastic airbag, 402: fixed shell, 403: piston plate, 404: support rod, 405: fourth pull rope, 406: limit disc, 407: sliding frame, 408: limit plate, 409: n-shaped frame. Detailed implementation mode

[0030] The present invention will be further described in detail below in conjunction with the attached drawings and the detailed implementation mode. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0031] Embodiment 1: A vehicle-mounted cooling box, as Figure 1 and Figure 2As shown in the figure, it includes a box body 101. Symmetrical heat preservation covers 102 are rotatably connected to the upper side of the box body 101. The bottom of the box body 101 is set as an inclined plane for guiding the items in the storage cavity of the box body 101. After the items are placed in the box body 101, the placed items all slide to the left along the inclined plane at the bottom of the box body 101, reducing the gap between the placed items. A limit lock 103 for locking the heat preservation covers 102 is arranged on the right side of the box body 101. A partition plate 104 is fixedly connected to the inner wall of the box body 101. The partition plate 104 divides the box body 101 into two equal storage cavities. The two storage cavities of the box body 101 are used to place different types of items. Symmetrical first sliding grooves 105 are arranged in the two storage cavities of the box body 101. Sliding blocks 106 are slidably connected in the front-back symmetrical first sliding grooves 105. When the first sliding groove 105 is set as a horizontal groove, there is friction between the sliding block 106 and the first sliding groove 105. A positioning plate 107 is fixedly connected between the symmetrical sliding blocks 106. The positioning plate 107 changes the volume of the storage cavity of the box body 101 according to the placed items and limits the placed items, preventing the placed items from shaking inside the box body 101 and generating an impact force hitting the inner wall of the box body 101, causing damage to the placed items.

[0032] When the first sliding groove 105 is set as a horizontal sliding groove, the user first releases the limit of the limit lock 103 on the two heat preservation covers 102. The user synchronously opens the two heat preservation covers 102 and moves the two positioning plates 107 to the right. The user places beverages and fruits between the left positioning plate 107 and the box body 101 and between the right positioning plate 107 and the partition plate 104 respectively. The bottom surface of the box body 101 is set as an inclined plane. The placed beverages and fruits slide to the left along the inclined plane at the bottom of the box body 101, making the beverages and fruits fit against the left side of the inner wall of the box body 101 and the right side of the partition plate 104. The user then pushes the positioning plate 107 to the left in turn. The pushing force of the user is greater than the friction between the sliding block 106 and the first sliding groove 105. The positioning plate 107 moves to the left until it fits against the beverages and fruits. The user then closes the two heat preservation covers 102, and the limit lock 103 re-limits the two heat preservation covers 102. The positioning plate 107 is fixed by the friction between the sliding block 106 and the adjacent first sliding groove 105. The positioning plate 107 limits the beverages and fruits in the box body 101, avoiding the collision between the beverages and fruits inside the box body 101 and the inner wall of the box body 101 during the driving of the vehicle, causing damage to the beverages and fruits.

[0033] Embodiment 2: On the basis of Embodiment 1, as Figures 2 - 4As shown in the figure, it further includes a traction mechanism for changing the position of the positioning plate 107. The traction mechanism is arranged inside the box body 101. The traction mechanism includes a first pulling rope 201. The first pulling rope 201 is connected to the left positioning plate 107. The partition plate 104 is provided with a through hole. The first pulling rope 201 passes through the through hole of the partition plate 104. The right inner wall of the box body 101 is rotatably connected with a first guiding wheel 2011 through a mounting seat. The first pulling rope 201 is wound around the first guiding wheel 2011. The right positioning plate 107 is connected with a second pulling rope 202. The right inner wall of the box body 101 is rotatably connected with a second guiding wheel 2021 through a mounting seat. The second pulling rope 202 is wound around the second guiding wheel 2021. The upper ends of the first pulling rope 201 and the second pulling rope 202 are fixedly connected with a connecting block 203. The inner wall of the box body 101 is fixedly connected with a first fixing plate 204. A connecting plate 205 is fixedly connected between the first pulling rope 201 and the second pulling rope 202. A first elastic member 206 is fixedly connected between the connecting plate 205 and the first fixing plate 204. The first elastic member 206 is arranged as a tension spring. The first elastic member 206 is used to pull the first pulling rope 201 and the second pulling rope 202 to reset. The connecting block 203 is connected with a third pulling rope 207. The third pulling rope 207 is arranged as an elastic rope. During the process of opening the two heat preservation covers 102, the third pulling rope 207 is first stretched, and the third pulling rope 207 deforms and stores energy. When the two heat preservation covers 102 are completely opened, the third pulling rope 207 pulls the first pulling rope 201 and the second pulling rope 202 through its own elastic force. The upper part of the inner wall of the box body 101 is rotatably connected with a third guiding wheel 2071 through a mounting seat. The third pulling rope 207 is wound around the third guiding wheel 2071. The upper side inside the box body 101 is fixedly connected with a second fixing plate 208. The second fixing plate 208 is provided with a through hole. The third pulling rope 207 passes through the through hole of the second fixing plate 208 and is fixedly connected with the heat preservation cover 102 on the same side.

[0034] As Figure 3 and Figure 4 shown in the figure, it further includes a protective shell 209. The protective shell 209 is fixedly connected to the right side of the partition plate 104. The protective shell 209 is communicated with the through hole of the partition plate 104. The first pulling rope 201 is located inside the protective shell 209. The protective shell 209 isolates the first pulling rope 201 from the placed items, avoiding the left positioning plate 107 from being blocked from moving leftward due to the contact between the first pulling rope 201 and the items placed on the right side of the partition plate 104.

[0035] As Figure 4 shown in the figure, it further includes symmetrically distributed magnet blocks 210. The symmetrically distributed magnet blocks 210 are respectively fixedly connected to the right side of the first sliding groove 105. The sliding block 106 is made of magnetic material. The sliding block 106 has the same magnetic pole as the magnet blocks 210, preventing the positioning plate 107 from remaining stationary under the action of inertia, resulting in the positioning plate 107 being unable to slide leftward along the first sliding groove 105. The positioning plate 107 stops moving after moving to the right side of the adjacent first sliding groove 105.

[0036] As shown Figures 5 - 7 in the figure, there are also two sets of fixed limit mechanisms symmetrically distributed. The fixed limit mechanisms are used to limit the positioning plate 107. The two sets of fixed limit mechanisms symmetrically distributed are respectively arranged on the adjacent positioning plates 107. The fixed limit mechanism includes a sealing plate 301. The positioning plate 107 is provided with a cavity. The sealing plate 301 is fixedly connected to the upper side of the positioning plate 107. The sealing plate 301 is used to seal the cavity of the positioning plate 107. Symmetric sliding rods 302 are slidably connected to the sealing plate 301. The upper ends of the sliding rods 302 are rotatably connected to rotating wheels 303 through mounting seats. The rotating wheels 303 are in extrusion fit with the adjacent heat preservation cover 102. Through the friction force between the rotating wheels 303 and the heat preservation cover 102, it is prevented that during the fixing process of the positioning plate 107, the positioning plate 107 moves to the right and generates a gap between the beverage and the fruit. Symmetrically arranged lower sides of the sliding rods 302 are slidably connected to a folded plate 304. A second elastic member 3041 is fixedly connected between the folded plate 304 and the adjacent sealing plate 301. A third elastic member 305 is fixedly connected between the lower end of the sliding rod 302 and the folded plate 304 through a mounting plate. The third elastic member 305 is arranged as a tension spring. Both ends of the folded plate 304 are fixedly connected with guide rods 306. Symmetric extrusion limit components are arranged in the cavity of the positioning plate 107. The extrusion limit components are in extrusion with the inner wall of the box body 101 to limit the positioning plate 107.

[0037] As shown Figure 7 in the figure, the extrusion limit component includes two symmetric fixed rods 307. The two symmetric fixed rods 307 are both fixedly connected to the inner wall of the adjacent positioning plate 107. An L-shaped plate 308 is slidably connected between the two adjacent fixed rods 307. A fourth elastic member 309 is sleeved on the fixed rod 307. The two ends of the fourth elastic member 309 are respectively fixedly connected to the adjacent L-shaped plate 308 and the adjacent positioning plate 107. Through holes are respectively arranged on both sides of the positioning plate 107. An extrusion block 310 is slidably connected in the through hole of the positioning plate 107. The extrusion block 310 is fixedly connected to the adjacent L-shaped plate 308. The extrusion block 310 is made of an elastic anti-slip material. The extrusion block 310 deforms under extrusion, increasing the contact area between the extrusion block 310 and the box body 101. The L-shaped plate 308 is provided with a second sliding groove 311. The guide rod 306 is slidably connected in the adjacent second sliding groove 311. When the guide rod 306 moves downward along the adjacent second sliding groove 311, the guide rod 306 extrudes the L-shaped plate 308 outward, so that the extrusion block 310 extrudes against the inner wall of the box body 101 and deforms. Through the friction force between the extrusion block 310 and the inner wall of the box body 101, the positioning plate 107 is fixed.

[0038] When the first chute 105 is set as an inclined chute, the user releases the limit of the two heat preservation covers 102 by the limit lock 103, and the user opens the two heat preservation covers 102 synchronously. During the opening process of the heat preservation cover 102, the heat preservation cover 102 pulls the third pulling rope 207 outward. The third pulling rope 207 is set as an elastic rope and is stretched and deformed. At the same time, the heat preservation cover 102 releases the extrusion on the adjacent sliding rod 302. Under the pulling force of the second elastic member 3041, the second elastic member 3041 drives the adjacent folded plate 304 and the parts thereon to move upward and reset. The guide rods 306 at both ends of the folded plate 304 move upward along the adjacent second chute 311. When the guide rod 306 moves to the upper part of the second chute 311, the guide rod 306 presses the upper inclined surface of the second chute 311, and the L-shaped plate 308 slides along the adjacent two fixed rods 307. The L-shaped plate 308 drives the extrusion block 310 thereon to move. When the heat preservation cover 102 swings to the vertical state, the heat preservation cover 102 maintains the vertical state by an external force. As the heat preservation cover 102 swings to the vertical state, the folded plate 304 moves upward until the extrusion block 310 loses the extrusion with the box body 101. Subsequently, under the pulling force of the third pulling rope 207, the lower end of the third pulling rope 207 pulls the connecting block 203 upward, and the connecting plate 205 synchronously pulls the upper ends of the first pulling rope 201 and the second pulling rope 202. The first pulling rope 201 and the second pulling rope 202 slide along the first guide wheel 2011 and the second guide wheel 2021 respectively. The first pulling rope 201 and the second pulling rope 202 synchronously pull the positioning plate 107 to the right. Both positioning plates 107 move to the right along the adjacent first chute 105 through the sliding blocks 106 on the front and rear sides. At the same time, the first pulling rope 201 and the second pulling rope 202 drive the connecting plate 205 to move upward, and the first elastic member 206 is stretched. By using the process of opening the heat preservation cover 102, through the cooperation of the third pulling rope 207 with the first pulling rope 201 and the second pulling rope 202, the two positioning plates 107 are synchronously pulled to the right. The two positioning plates 107 move to the right as the heat preservation cover 102 is opened, which is convenient for placing and taking beverages and fruits into and out of the box body 101.

[0039] When the two positioning plates 107 move to the rightmost side of the adjacent first sliding grooves 105, the user places beverages and fruits respectively between the left positioning plate 107 and the box body 101 and between the right positioning plate 107 and the partition plate 104. After placing, the user closes the two heat preservation covers 102. Under the pulling force of the first elastic member 206, the first pulling rope 201, the second pulling rope 202 and the third pulling rope 207 are reset. The two positioning plates 107 slide leftward along the first sliding grooves 105 under their own gravity. When the two positioning plates 107 contact the beverages and fruits, they stop moving downward and leftward. At the same time, as the two heat preservation covers 102 are reset, the heat preservation covers 102 swing downward and squeeze the rotating wheels 303 downward. The rotating wheels 303 on the front and rear sides are synchronously squeezed. At this time, the positioning plates 107 are subjected to squeezing forces downward in the front and back directions. The rotating wheels 303 roll along the adjacent heat preservation covers 102. During the process of the rotating wheels 303 rolling along the heat preservation covers 102, through the friction force between the rotating wheels 303 and the heat preservation covers 102, it is prevented that the positioning plates 107 move rightward to generate gaps with the beverages and fruits. At the same time, the positioning plates 107 do not generate hard squeezing forces on the fruits and beverages, avoiding long-term squeezing damage to items such as fruits.

[0040] During the process of the sliding rod 302 moving downward, the sliding rod 302 drives the folding plate 304 and the parts thereon to move downward through the connecting plate 205. The folding plate 304 drives the guide rods 306 at both ends to slide downward along the second sliding grooves 311. The guide rods 306 on both sides respectively squeeze the L-shaped plates 308 on the front and back sides. The L-shaped plates 308 on the front and back sides approach the inside of the box body 101 along the fixed rods 307. The fourth elastic member 309 is compressed. The extrusion blocks 310 are extruded on the inner wall of the box body 101 and deformed. The positioning plates 107 are fixed through the friction force between the extrusion blocks 310 on both sides and the inner wall of the box body 101, improving the stability of the positioning plates 107, avoiding the rightward offset of the positioning plates 107 during the vehicle driving process and generating gaps with the beverages and fruits, resulting in damage to the beverages and fruits by hitting the inner wall of the box body 101.

[0041] During the process of the first pulling rope 201 and the second pulling rope 202 pulling the positioning plates 107, the protective shell 209 protects the first pulling rope 201, avoiding contact between the first pulling rope 201 and the items placed between the right positioning plate 107 and the partition plate 104, resulting in friction of the first pulling rope 201 and hindering the leftward movement and reset of the left positioning plate 107. During the process of closing the two heat preservation covers 102, there is a repulsive force between the magnet block 210 and the adjacent sliding block 106. The positioning plates 107 are pushed through the repulsive force of the magnet block 210 on the adjacent sliding block 106, providing an initial driving force for the leftward movement of the positioning plates 107, avoiding that the positioning plates 107 remain stationary on the right side of the first sliding grooves 105 due to inertia, resulting in hindrance to the leftward movement of the positioning plates 107.

[0042] Embodiment 3: On the basis of Embodiment 2, as shown in Figure 5 , Figure 6 and Figure 8 , it further includes anti-side shift mechanisms symmetrically distributed. The anti-side shift mechanisms are used to protect the placed items. The symmetrically distributed anti-side shift mechanisms are respectively arranged on adjacent positioning plates 107. The buffer mechanism includes an elastic airbag 401. The elastic airbag 401 is composed of multiple individual cavities, which improves the limiting effect of the elastic airbag 401 on the placed items. The elastic airbag 401 is installed on the left side of the positioning plate 107. The positioning plate 107 is fixedly connected with a fixed shell 402. The fixed shell 402 is communicated with the adjacent elastic airbag 401 through a conduit. A piston plate 403 is slidably connected to the fixed shell 402. When the piston plate 403 moves downward, the air in the fixed shell 402 is squeezed into the elastic airbag 401, and the elastic airbag 401 deforms. The elastic airbag 401 presses against the outside of the crush-resistant item to prevent the placed item from sliding back and forth in the box body 101. A support rod 404 is fixedly connected to the upper side of the piston plate 403. A pressure adjustment component for adjusting the pressure of the elastic airbag 401 is arranged on the upper side of the positioning plate 107.

[0043] As shown in Figure 6 and Figure 8 , the pressure adjustment component includes: a through hole is provided on the sealing plate 301. The fourth pull rope 405 is slidably connected in the through hole of the sealing plate 301. A circular through hole is provided on the folded plate 304. The fourth pull rope 405 passes through the circular through hole of the folded plate 304. A limiting disc 406 is fixedly connected to the lower end of the fourth pull rope 405. The limiting disc 406 is located below the folded plate 304. The limiting disc 406 is used to limit the position of the folded plate 304. After the folded plate 304 contacts the limiting disc 406, it stops moving downward, thereby adjusting the distance that the piston plate 403 moves downward, and thus changing the deformation degree of the elastic airbag 401. A sliding frame 407 is slidably connected to the upper side of the positioning plate 107. The upper end of the fourth pull rope 405 is fixedly connected to the sliding frame 407. The sliding frame 407 moves back and forth to change the height of the limiting disc 406 through the fourth pull rope 405. Two symmetric limiting plates 408 are fixedly connected to the positioning plate 107. The limiting plates 408 are provided with equally spaced limiting grooves. An n-shaped frame 409 is slidably connected to the sliding frame 407. The n-shaped frame 409 is in limiting cooperation with the adjacent limiting plate 408. The cooperation between the n-shaped frame 409 and the limiting grooves of the limiting plate 408 is used to limit the sliding frame 407.

[0044] After the user places fruits and beverages in the box body 101, when the items placed in the box body 101 are items resistant to extrusion, the user pulls up the n-shaped frame 409. The n-shaped frame 409 loses its cooperation with the limit groove of the limit plate 408. The user pushes the sliding frame 407 backward so that the n-shaped frame 409 cooperates with the limit groove at the rear side of the limit plate 408 to fix the position of the sliding frame 407 and prevent the limit disc 406 from moving downward after being squeezed by the folded plate 304. During the process of the sliding frame 407 moving backward, the limit disc 406 drives the lower end of the fourth pull rope 405 to move downward to adjust the position of the fourth pull rope 405. The sliding rod 302 drives the folded plate 304 to move downward through the third elastic member 305, so that the two extrusion blocks 310 are squeezed against the inner wall of the box body 101. At the same time, the folded plate 304 squeezes the support rod 404 downward, and the support rod 404 drives the piston plate 403 to move downward. The piston plate 403 squeezes the air in the fixed shell 402, and the air in the fixed shell 402 flows into the elastic airbag 401 through the conduit. The elastic airbag 401 deforms simultaneously and squeezes the outside of the placed object. The placed object is squeezed by the deformation of the elastic airbag 401 to improve the stability of the items placed in the box body 101 and prevent the placed object from sliding back and forth in the box body 101. When the folded plate 304 contacts the limit disc 406, the folded plate 304 stops moving downward under the limiting action of the limit disc 406, and the sliding rod 302 continues to move downward until the two heat preservation covers 102 are closed. When the two heat preservation covers 102 are opened, the second elastic member 3041 drives the adjacent folded plate 304 and the parts thereon to move upward and reset. The folded plate 304 releases the extrusion on the support rod 404, and then the elastic airbag 401 contracts. The air in the elastic airbag 401 re-enters the fixed shell 402, and the piston plate 403 then resets. When the placed object is easily damaged by extrusion, the user pushes the sliding frame 407 forward so that the n-shaped frame 409 cooperates with the rightmost limit groove of the limit plate 408 to limit the position of the folded plate 304 and prevent the folded plate 304 from squeezing the support rod 404 downward to cause the elastic airbag 401 to expand and generate an extrusion force on the placed item.

[0045] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited by the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A vehicle-mounted cooling box, characterized in that, It includes a box body (101). Symmetrical heat preservation covers (102) are rotatably connected to the upper side of the box body (101). A limit lock (103) for locking the heat preservation covers (102) is arranged on one side of the box body (101). A partition board (104) is fixedly connected to the inner wall of the box body (101). The partition board (104) divides the box body (101) into two equal storage cavities. Symmetrical first sliding grooves (105) are arranged in the two storage cavities of the box body (101). Sliding blocks (106) are slidably connected in the symmetrical first sliding grooves (105). When the first sliding grooves (105) are horizontal grooves, there is friction between the sliding blocks (106) and the first sliding grooves (105). A positioning plate (107) is fixedly connected between the symmetrical sliding blocks (106). The positioning plate (107) changes the volume of the storage cavity of the box body (101) according to the placed items and limits the placed items to prevent them from shaking. It also includes a traction mechanism for changing the position of the positioning plate (107). The traction mechanism is arranged in the box body (101). The traction mechanism includes a first pull rope (201). The first pull rope (201) is connected to the positioning plate (107) far from the limit lock (103). The partition board (104) is provided with a through hole. The first pull rope (201) passes through the through hole of the partition board (104). A first guide wheel (2011) is rotatably connected to one side of the inner wall of the box body (101) close to the limit lock (103) through a mounting seat. The first pull rope (201) is wound around the first guide wheel (2011). A second pull rope (202) is connected to the positioning plate (107) close to the limit lock (103). A second guide wheel (2021) is rotatably connected to one side of the inner wall of the box body (101) close to the limit lock (103) through a mounting seat. The second pull rope (202) is wound around the second guide wheel (2021). Connecting blocks (203) are fixedly connected to the upper ends of the first pull rope (201) and the second pull rope (202). A first fixing plate (204) is fixedly connected to the inner wall of the box body (101). A connecting plate (205) is fixedly connected between the first pull rope (201) and the second pull rope (202). A first elastic member (206) is fixedly connected between the connecting plate (205) and the first fixing plate (204). The connecting block (203) is connected to a third pull rope (207). The third pull rope (207) is an elastic rope. A third guide wheel (2071) is rotatably connected to the upper part of the inner wall of the box body (101) through a mounting seat. The third pull rope (207) is wound around the third guide wheel (2071). A second fixing plate (208) is fixedly connected to one side of the inner wall of the box body (101) close to the limit lock (103). The second fixing plate (208) is provided with a through hole. The third pull rope (207) passes through the through hole of the second fixing plate (208) and is fixedly connected to the heat preservation cover (102) on the same side.

2. The vehicle-mounted cooling box according to claim 1, characterized in that, The bottom of the box body (101) is an inclined surface for guiding the items in the storage cavity of the box body (101).

3. The vehicle-mounted cooling box according to claim 1, characterized in that It further includes a protective case (209). The protective case (209) is fixedly connected to one side of the partition plate (104) close to the limit lock (103). The through hole of the protective case (209) is communicated with that of the partition plate (104). The first pull rope (201) is located inside the protective case (209), and the protective case (209) isolates the first pull rope (201) from the placed items.

4. A vehicle cooling box according to claim 1, characterized in that, It further includes symmetrically distributed magnet blocks (210). The symmetrically distributed magnet blocks (210) are respectively fixedly connected to one side of the first sliding groove (105) close to the limit lock (103). The sliding block (106) is made of a magnetic material, and the magnetic poles of the sliding block (106) and the magnet blocks (210) are the same. The magnet blocks (210) are used to overcome the inertia of the positioning plate (107).

5. The vehicle-mounted cooling box according to claim 4, characterized in that, It further includes symmetrically distributed fixed limiting mechanisms. The fixed limiting mechanisms are used to limit the positioning plate (107). The symmetrically distributed fixed limiting mechanisms are respectively arranged on adjacent positioning plates (107). The fixed limiting mechanism includes a sealing plate (301). The positioning plate (107) is provided with a cavity. The sealing plate (301) is fixedly connected to the upper side of the positioning plate (107). The sealing plate (301) is used to seal the cavity of the positioning plate (107). Symmetric sliding rods (302) are slidably connected to the sealing plate (301). The upper ends of the sliding rods (302) are rotatably connected to a rotating wheel (303) through a mounting seat. A folding plate (304) is slidably connected to the lower sides of the symmetric sliding rods (302). A second elastic member (3041) is fixedly connected between the folding plate (304) and the sealing plate (301). A third elastic member (305) is fixedly connected between the lower end of the sliding rod (302) and the folding plate (304) through a mounting plate. Guide rods (306) are fixedly connected to both ends of the folding plate (304). Symmetric extrusion limiting components are arranged in the cavity of the positioning plate (107). The extrusion limiting components are in extrusion contact with the inner wall of the box body (101) to limit the positioning plate (107).

6. The vehicle-mounted cooling box according to claim 5, characterized in that, The extrusion limiting component includes symmetric fixed rods (307). The symmetric fixed rods (307) are both fixedly connected to the inner wall of the adjacent positioning plate (107). An L-shaped plate (308) is slidably connected between the adjacent fixed rods (307). A fourth elastic member (309) is sleeved on the fixed rod (307). The two ends of the fourth elastic member (309) are respectively fixedly connected to the adjacent L-shaped plate (308) and the adjacent positioning plate (107). Through holes are respectively arranged on both sides of the positioning plate (107). An extrusion block (310) is slidably connected in the through hole of the positioning plate (107). The extrusion block (310) is fixedly connected to the adjacent L-shaped plate (308). The extrusion block (310) is made of an elastic anti-slip material. The L-shaped plate (308) is provided with a second sliding groove (311). The guide rod (306) is slidably connected in the adjacent second sliding groove (311).

7. The vehicle-mounted cooling box according to claim 1, characterized in that, It also includes anti-side shift mechanisms symmetrically distributed, which are used to protect the placed items. The symmetrically distributed anti-side shift mechanisms are respectively arranged on adjacent positioning plates (107). The buffer mechanism includes an elastic airbag (401), and the elastic airbag (401) is installed on the side of the positioning plate (107) away from the limit lock (103). A fixed shell (402) is fixedly connected to the positioning plate (107), and the fixed shell (402) is communicated with the adjacent elastic airbag (401) through a conduit. A piston plate (403) is slidably connected to the fixed shell (402), a support rod (404) is fixedly connected to the piston plate (403), and a pressure adjustment component for adjusting the pressure of the elastic airbag (401) is arranged on the positioning plate (107).

8. The vehicle-mounted cooling box according to claim 7, characterized in that, The pressure adjustment component includes a fourth pull rope (405). The sealing plate (301) is provided with a through hole, and the fourth pull rope (405) is slidably connected in the through hole of the sealing plate (301). The folded plate (304) is provided with a circular through hole, and the fourth pull rope (405) passes through the circular through hole of the folded plate (304). One end of the fourth pull rope (405) close to the fixed shell (402) is fixedly connected with a limit disc (406), and the limit disc (406) is used to limit the position of the folded plate (304). A sliding frame (407) is slidably connected to the upper side of the positioning plate (107), and the upper end of the fourth pull rope (405) is fixedly connected with the sliding frame (407). Symmetric limit plates (408) are fixedly connected to the positioning plate (107), and the limit plates (408) are provided with equally spaced limit grooves. An n-shaped frame (409) is slidably connected to the sliding frame (407), and the n-shaped frame (409) is in limit cooperation with the adjacent limit plate (408).

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