Heat preservation box with anti-pinch structure and lighting function

Abstract

The utility model discloses a heat preservation box with an anti-pinch structure and a lighting function, which comprises a box body with an opening at the top, a cover body for covering the box body and an inner box embedded in the box body, and the cover body rotatably covers the inner box through a rotating shaft; an anti-pinch module is arranged between the cover body and the inner box; the anti-pinch module comprises a damping structure and a limiting structure; the damping structure is used for increasing the rotating resistance of the cover body through dynamic conversion between elastic potential energy and sliding friction force; the limiting structure is in limiting fit with the damping structure; a lighting module is arranged on the surface, corresponding to the interior of the box body, of the cover body and comprises an infrared sensor and an LED lamp set electrically connected with the infrared sensor, and the detection end of the infrared sensor corresponds to the opening side of the box body. Through the matched design of the damping structure and the limiting structure, stable damping regulation and control of rotation of the cover body are achieved, and the hidden danger of hand clamping is avoided; and meanwhile, through detachable installation of the lighting module and a human body induction intelligent triggering mode, the maintenance convenience and scene adaptability are improved.

Description

Technical Field

[0001] This utility model relates to the field of insulated boxes, specifically to an insulated box with an anti-pinch structure and lighting function. Background Technology

[0002] Traditional insulated boxes typically have lids hinged to the box body via a simple pivot. While this connection method is structurally simple, the lid relies solely on the friction of the pivot itself to prevent rotation during opening and closing, lacking an active damping control mechanism. When a user opens or closes the lid, it can easily rotate rapidly due to gravity. This poses a significant safety threat, especially to children and the elderly, if their hands are within the lid's movement trajectory when removing or placing items.

[0003] Existing insulated boxes with lighting typically have fixed lighting modules, making disassembly and maintenance inconvenient. Furthermore, the lighting triggering logic is simple, often relying on simple mechanical switches or timed triggers, which cannot accurately identify the actual usage scenario of "opening the lid to retrieve items." This can easily lead to energy waste and affect the user experience of retrieving items in low-light environments, making it difficult to meet the intelligent needs of scenarios such as outdoor camping and nighttime item retrieval. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an insulated box with an anti-pinch structure and lighting function, solving the problems of hand-pinch hazards and insufficient lighting function in existing insulated boxes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an insulated box with an anti-pinch structure and lighting function, comprising a box body with an opening at the top, a cover for closing the box body, and an inner box embedded in the box body, wherein the cover is rotatably mounted on the inner box via a pivot; an anti-pinch module is provided between the cover and the inner box, the anti-pinch module including a damping structure for increasing the rotational resistance of the cover and a limiting structure that limits the damping structure; an lighting module is provided on the surface of the cover corresponding to the inside of the box body, the lighting module including an infrared sensor and an LED light group electrically connected to the infrared sensor, wherein the detection end of the infrared sensor corresponds to the opening side of the box body.

[0006] Furthermore, the top of the inner box is provided with a mounting flange extending towards the edge of the opening, and the mounting flange is sealed to the top edge of the box; a mounting groove is provided on one side of the mounting flange, the cover is provided with a connecting part corresponding to the mounting groove, the mounting flange is provided with a through hole penetrating the wall of the mounting groove, the connecting part is provided with a connecting hole coaxial with the through hole, the rotating shaft passes through the through hole and the connecting hole in sequence and is rotatably connected to the cover, a local area of ​​the rotating shaft surface is provided with an anti-slip structure, and the end of the rotating shaft is provided with a quick-release cap, the quick-release cap being a flat round protrusion structure with an operating groove on the outer end face.

[0007] Furthermore, the damping structure includes a damping clip and a limiting hole opened on the connecting part and parallel to the connecting hole. The damping clip includes a base with a hollow cylindrical structure installed in the limiting hole, and a clip head and a spring housed in the base. The clip head is a T-shaped rod structure, with the head of the clip head being a first cylinder with its top protruding from the limiting hole, and the tail of the clip head being a second cylinder. The diameter of the first cylinder is larger than the diameter of the second cylinder. An annular boss is formed at the junction of the head and the tail of the clip head. The upper end of the base has a large-diameter opening for accommodating the head of the clip head, and the lower end has a small-diameter opening for the tail of the clip head to pass through. The transition between the large-diameter opening and the small-diameter opening forms an annular step. The spring is sleeved on the tail of the clip head, with the upper end of the spring fixedly connected to the annular boss, and the lower end of the spring abutting against the annular step so that the clip head can extend and retract axially along the base.

[0008] Furthermore, the top of the card head is an arc surface, and the limiting structure includes a first limiting groove and a second limiting groove radially distributed on the inner box mounting groove wall with the through hole as the center. The first limiting groove and the second limiting groove are limited and matched with the arc surface. The first limiting groove is a straight groove located above the through hole and penetrating the upper surface of the mounting flange. The second limiting groove is a fan-shaped groove with the groove wall curvature adapted to the curvature of the arc surface. The mounting groove wall between the first limiting groove and the second limiting groove forms a damping contact area for the sliding of the card head.

[0009] Furthermore, the cover protrudes from the center of the inner surface of the box to form a ring support structure. The ring support structure is symmetrically provided with clearance holes for the charging interface and switch of the lighting module. The lighting module can be detachably inserted into the ring space of the ring support structure.

[0010] Furthermore, the surface of the cover corresponding to the inside of the box is provided with an annular protrusion surrounding the annular support structure, the top of the inner box is provided with an annular clearance groove that mates with the annular protrusion, the junction of the annular protrusion and the cover is provided with a first annular sealing ring, and the area where the mounting flange mates with the annular protrusion is provided with a second annular sealing ring.

[0011] Furthermore, the insulated box is also provided with a buckle assembly for assisting in locking and sealing the lid and the box body. The buckle assembly includes at least one buckle groove formed on the edge of the mounting flange and penetrating the upper and lower surfaces of the mounting flange, and at least one buckle provided on the side of the lid opposite to the connecting part and correspondingly snapping into the buckle groove.

[0012] Furthermore, the inner wall of the inner box is provided with a horizontal slot and a vertical sliding groove. The insulated box is also provided with a partition plate and a shelf with locking feet. The locking feet are embedded in the horizontal slot so that the shelf can be detachably installed in the inner box. The two sides of the partition plate are embedded in the vertical sliding groove and slide in cooperation with the inner wall of the inner box.

[0013] Furthermore, the insulated box is equipped with a pulling assembly, which includes a pull rod and rollers. The pull rod is rotatably mounted on the outer surface of the box body via a connecting arm, and the rollers are connected to the roller mounting cavity on the outer wall of the box body via detachable axle pins.

[0014] Furthermore, a drainage device is provided on the side of the box. The drainage device includes a drainage hole penetrating the side of the box, a drainage conduit integrally formed with the side of the inner box, and a drainage plug. The inner end of the drainage conduit extends into the interior of the inner box and is located at the lowest point of the bottom surface of the inner box. The outer end of the drainage conduit passes through the drainage hole and extends outward to the side of the box. The drainage plug is locked with the outer end of the drainage conduit, and a sealing ring is provided at the gap between the drainage conduit and the drainage hole.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The design of the damping structure and the limiting structure solves the risk of fingers being pinched in the insulated box. Through the mechanical friction and locking between the locking head and the first limiting groove, the mounting groove wall, and the second limiting groove, stable damping control is achieved during the lid's rotation. When the lid is opened, the arc surface at the tip of the locking head engages with the first limiting groove, precisely limiting the lid's rotation angle and preventing loss of control due to over-opening. When the lid is closed, the arc surface at the tip of the locking head slides against the mounting groove wall, generating resistance to slow the lid's rotation before sliding into the second limiting groove, preventing rapid descent and finger pinching, thus achieving stable closure of the lid. This design is simple, durable, and provides stable and controllable damping force, significantly improving safety performance.

[0017] 2. Employing a human body sensing lighting module, this system uses an infrared sensor to accurately identify human movement signals at the opening of the enclosure, achieving an intelligent trigger logic of "lights up when the lid is opened and turns off when the user leaves the enclosure." This avoids the energy waste caused by accidental activation or timed triggering of traditional mechanical switches. By detachably inserting the lighting module into the ring-shaped support structure, users can quickly disassemble and repair or replace it, significantly reducing maintenance costs. The pre-drilled clearance holes on the ring-shaped support structure accommodate charging ports and switches, ensuring both the integrity of the module's functionality and ease of daily operation. This meets the intelligent needs of complex scenarios such as outdoor camping and nighttime item retrieval, enhancing the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A three-dimensional structural diagram of the insulated box with anti-pinch structure and lighting function provided by this utility model;

[0020] Figure 2 A three-dimensional structural diagram of the insulated box with anti-pinch structure and lighting function provided by this utility model in a certain usage state;

[0021] Figure 3 Exploded view of the insulated box with anti-pinch structure and lighting function provided by this utility model;

[0022] Figure 4 An exploded view from another perspective of the insulated box with anti-pinch structure and lighting function provided by this utility model;

[0023] Figure 5 for Figure 3 A partially enlarged structural diagram of part A in the illustrated embodiment;

[0024] Figure 6 for Figure 4 A partially enlarged structural diagram of part B in the illustrated embodiment;

[0025] Figure 7 A schematic diagram of the damping clip of the insulated box with anti-pinch structure and lighting function provided by this utility model;

[0026] Figure 8 Exploded view of the damping clip of the insulated box with anti-pinch structure and lighting function provided by this utility model;

[0027] Figure 9 An exploded view from another perspective of the damping clip of the insulated box with anti-pinch structure and lighting function provided by this utility model.

[0028] Figure 10 An exploded view of the lighting module of the insulated box with anti-pinch structure and lighting function provided by this utility model. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] According to the appendix Figure 1-6 As shown, this utility model discloses an insulated box with an anti-pinch structure and lighting function, including a box body 1 with an opening at the top, a cover 2 for closing the box body 1, and an inner box 3 embedded in the box body 1. The cover 2 is rotated onto the inner box 3 via a pivot 4. An anti-pinch module is provided between the cover 2 and the inner box 3. The anti-pinch module includes a damping structure 5 for increasing the resistance to rotation of the cover 2 and a limiting structure 6 that cooperates with the damping structure 5. A lighting module 7 is provided on the surface of the cover 2 corresponding to the inside of the box body 1. The lighting module 7 includes an infrared sensor 71 and an LED light group 72 electrically connected to the infrared sensor 71. The detection end of the infrared sensor 71 corresponds to the opening side of the box body 1. The lid is connected to the inner box via a rotating shaft, ensuring smooth opening and closing. The anti-pinch module, through the combination of a limiting structure and a damping structure, utilizes the dynamic conversion mechanism of elastic potential energy and sliding friction to continuously output stable resistance during the lid's closing process, thereby achieving a uniform and slow closing of the lid and effectively avoiding the risk of pinching fingers caused by rapid closing. Furthermore, an infrared sensor detects the opening side of the box, and when a person is detected approaching, the LED lights can be quickly triggered to automatically light up without manual operation, allowing users to quickly retrieve items from the box in low-light environments and improving ease of use.

[0032] Specifically, the inner box 3 has a mounting flange 31 extending towards the edge of the opening at its top. The mounting flange 31 is sealed to the top edge 11 of the box body 1. A mounting groove 311 is provided on one side of the mounting flange 31. The cover has a connecting part 21 corresponding to the mounting groove 311. The mounting flange 31 has a through hole 312 penetrating the wall of the mounting groove 311. The connecting part 21 has a connecting hole 211 coaxial with the through hole 312. The rotating shaft 4 passes through the through hole 312 and the connecting hole 211 in sequence and is rotatably connected to the cover 2. A local area on the surface of the rotating shaft 4 has an anti-slip structure 41, and the end of the rotating shaft 4 has a quick-release cap 42. The quick-release cap 42 is a flat, round protrusion with an operating groove on its outer end face. The inner box 3 is embedded in the box body 1 through the top mounting flange 31. The mounting flange 31 and the top edge 11 of the box body form a sealed fit through a sealing strip or sealing structure to prevent external heat or cold air from entering and ensure the heat preservation effect. An anti-slip structure 41 with annular stripes or raised ridges on the surface of the rotating shaft 4 is provided to increase the friction between the rotating shaft 4 and the inner wall of the through hole 312, so that the rotating shaft 4 is stably locked in the through hole 312. When the cover 2 rotates around the rotating shaft 4, the connecting part 21 between the rotating shaft 4 and the cover 2 can rotate smoothly relative to each other without affecting the opening and closing function. The operating groove on the outer end face of the quick-release cap 42 adopts a hexagonal groove, a straight groove or a cross groove. By inserting a tool into the groove and rotating it, the friction between the rotating shaft and the anti-slip structure of the through hole can be overcome, so as to realize the quick rotation and pulling out or locking of the rotating shaft.

[0033] In one embodiment, two mounting grooves 311 are symmetrically opened along one side of the mounting flange 31 on the top of the inner box 3, and two connecting parts 21 are opened on the cover 2 accordingly, so that the torque when the cover 2 rotates is evenly transmitted through the two rotating shafts 4, improving the opening and closing stability, especially suitable for large-size cover 2.

[0034] In another embodiment, a mounting groove 311 is opened in the middle of one side of the mounting flange 31 on the top of the inner box 3, and a corresponding connecting part 21 is opened on the cover 2, so that the torque when the cover 2 rotates is concentrated and transmitted to the midpoint of the rotating shaft 4, reducing the problem of eccentric rotation of the cover 2, improving the sealing stability of the insulation box, simplifying the connection structure between the inner box 3 and the cover 2 through the single mounting groove 311 design, reducing mold cost and assembly difficulty, adapting to small-sized insulation boxes, and meeting the requirements of lightweighting.

[0035] like Figure 5 , Figure 7-9As shown, the damping structure 5 includes a damping clip 51 and a limiting hole 52 formed on the connecting portion 21 and parallel to the connecting hole 211. The damping clip 51 includes a base 512 with a hollow cylindrical structure installed in the limiting hole 52, a clip head 511 housed in the base 512, and a spring 513. The clip head 511 has a T-shaped rod structure, with the clip head 5111 being a first cylinder with its top protruding from the limiting hole 52, and the clip head tail 5112 being a second cylinder. The diameter of the first cylinder is larger than the diameter of the second cylinder. An annular boss 5113 is formed at the junction of the base 511 and the tail of the card head 5112. The upper end of the base 512 has a large-diameter opening 5121 for accommodating the head of the card head 5111, and the lower end has a small-diameter opening 5122 for the tail of the card head 5112 to pass through. The transition between the large-diameter opening and the small-diameter opening forms an annular step 5123. The spring 513 is sleeved on the tail of the card head 5112. The upper end of the spring 513 is fixedly connected to the annular boss 5113, and the lower end of the spring 513 abuts against the annular step so that the card head 511 can extend and retract axially along the base 512. By setting the limiting hole 52 parallel to the connecting hole 211, the force direction of the damping card 51 is completely consistent with the rotational tangent direction of the cover 2 around the rotating shaft 4. The damping force can be directly transmitted to the rotating shaft 4 through the connecting part 211, ensuring linear change of the damping force, realizing uniform and slow closing of the cover 2, and avoiding pinching.

[0036] like Figure 6-7 As shown, the top of the card head 5111 is an arc surface. The limiting structure 6 includes a first limiting groove 313 and a second limiting groove 314 radially distributed on the inner box mounting groove 311 with the through hole 312 as the center. The first limiting groove 313 and the second limiting groove 314 are matched with the arc surface for limiting. The first limiting groove 313 is a straight groove located above the through hole 312 and penetrating the upper surface of the mounting flange 31. The second limiting groove 314 is a fan-shaped groove with the groove wall curvature adapted to the curvature of the arc surface. The mounting groove 311 between the first limiting groove 313 and the second limiting groove 314 forms a damping contact area for the sliding of the card head.

[0037] In this embodiment, when the cover 2 is opened to a preset angle, the arc surface at the top of the locking head 5111 is embedded in the first limiting groove 313. The straight groove wall blocks the rotation angle of the cover 2, locking it at the preset angle and preventing it from being over-opened. When the cover 2 needs to be closed, the user applies external force to drive the cover 2 to rotate in the opposite direction. The groove wall of the first limiting groove 313 presses against the locking head 511, causing the locking head 511 to contract axially along the base 512, thus disengaging the arc surface at the top of the locking head 5111 from the first limiting groove. After the groove 313 is reached, the locking head 511 partially rebounds and slides against the wall of the mounting groove 311, generating resistance to slow down the rotation speed of the cover 2 and achieve slow closure, preventing hand pinching. As the cover 2 continues to rotate, the locking head 511 slides along the wall of the mounting groove 311 into the second limiting groove 314 and then fully rebounds to its original position. The curvature of the wall of the second limiting groove 314 and the arc surface of the top of the locking head 5111 are precisely matched, forming a guide channel without additional friction, allowing the locking head to slide smoothly along the fan-shaped groove and achieve stable closure of the cover 2. Through the cooperation of the damping structure 5 and the limiting structure 6, the risk of hand pinching caused by the rapid closure of the cover 2 is effectively avoided, ensuring user safety whether used by children or the elderly, or in scenarios where items are quickly retrieved or placed.

[0038] Understandably, as a wear part, when the damping clip 51 needs to be replaced, the user can use an adapter tool such as a hex wrench or screwdriver to insert into the operating slot of the quick-release cap 42, and smoothly pull the shaft 4 out of the through hole 312 by rotating or applying axial force, without damaging the insulation box structure; after pulling out the shaft 4, the damping clip 51 can be directly replaced, and after maintenance, the shaft 4 can be reinstalled by reversing the operation to achieve quick repair.

[0039] Furthermore, the anti-pinch module can be flexibly set into one, two, or four groups according to user needs, corresponding to the single side, two sides, or four corners of the mounting groove 311 and the adapter connection part 21. By using multiple groups to disperse the rotational stress of the cover 2, the damping stability and anti-pinch reliability can be effectively improved, adapting to the needs of insulated boxes of different sizes and usage scenarios.

[0040] like Figure 10As shown, the cover 2 protrudes from the center of the inner surface of the housing 1 to form a ring support structure 22. Symmetrical clearance holes 221 are provided on the ring support structure 22 to accommodate the charging interface 73 and switch 74 of the lighting module 7. The lighting module 7 can be detachably inserted into the ring space of the ring support structure 22. When the lighting module 7 is detachably inserted into the ring support structure 22 by means of snap-fit, magnetic attraction, etc., its charging interface 73 and switch 74 are precisely aligned with the two clearance holes 221 of the ring support structure 22. The charging interface 73 and switch 74 of the lighting module 7 are exposed through the clearance holes 221, facilitating user connection for charging with a charging cable and manual control of the LED lights via the switch 74. Even in special scenarios such as infrared sensor 71 malfunction or the need for constant illumination or forced shutdown, the lighting can still be flexibly controlled, ensuring the availability of charging and manual control functions. Furthermore, the ring support structure 22 provides circumferential restraint for the lighting module 7, preventing it from loosening or shifting during the opening, closing, and movement of the cover 2.

[0041] Furthermore, a waterproof cover 731 is adapted to the charging port 73. When the lighting module 7 does not need to be charged, the waterproof cover 731 can be tightly closed on the charging port 73 to prevent water, soup and other liquids from seeping into the lighting module 7 through the charging port 73 during outdoor use and cleaning of the insulated box. This avoids damage to the lighting module 7 due to short circuit caused by water ingress and improves the waterproof performance and service life of the product.

[0042] In practical use, when a user approaches the insulated box and opens the lid 2, the infrared sensor 71 detects a human movement signal, triggering the LED light group 72 to light up, providing illumination inside the box and facilitating the user's access to items. When the user leaves, the infrared sensor 71 no longer detects a human movement signal, and the LED light group 72 automatically turns off after a preset time. If the lighting module 7 malfunctions, the user can directly remove it from the ring support structure 22 for repair or replacement; the operation is simple and convenient. The lighting module 7, with its human body sensing function, achieves intelligent lighting control, accurately identifying user scenarios and avoiding the problems of accidental activation, energy waste, and lighting lag associated with traditional lighting methods. It is energy-saving, environmentally friendly, and easy to use. The detachable installation design greatly reduces the maintenance difficulty of the lighting module 7; users can repair it themselves without professional tools and skills, reducing maintenance costs and time, and meeting lighting needs in various scenarios such as outdoors and at night.

[0043] like Figure 2-4As shown, the surface of the cover 2 corresponding to the interior surface of the box 1 is provided with an annular protrusion 23 surrounding the annular support structure 22. The top of the inner box 3 is provided with an annular relief groove 32 that mates with the annular protrusion 23. A first annular sealing ring 231 is provided at the junction of the annular protrusion 23 and the cover 2. A second annular sealing ring 312 is provided on the mounting flange 31 in the area that mates with the annular protrusion 23. The first annular sealing ring 231 and the second annular sealing ring 312 are fixed by embedding or bonding. When the cover 2 is closed, the annular protrusion 23 presses the first annular sealing ring 231 to make it fit tightly against the side wall of the annular relief groove 32. The second annular sealing ring 312 fills the gap between the annular relief groove 32 and the annular protrusion 23, forming a closed, sealed, and heat-insulating cavity, effectively blocking air convection between the inside and outside of the box and reducing heat exchange.

[0044] Furthermore, the inner cavity of the annular ridge 23 is provided with a buffer pad 232. The buffer pad 232 is made of elastic materials such as silicone and EVA foam. When the lid is closed, if vibration is caused by an external impact, the buffer pad 232 can absorb and dissipate the impact force through its own elastic deformation, reducing the damage to the items inside the box caused by high-frequency vibration. The buffer pad 232 is detachably snapped onto the annular ridge 23 by fasteners 2321, which are convenient for replacement and cleaning. The fasteners 2321 can be screws, elastic buckles, etc.; and an irregularly shaped clearance opening 2322 adapted to the annular support structure 22 is opened in the central area of ​​the buffer pad 232, which can completely avoid the main body of the lighting module 7, leaving operating space for the charging interface 73 and switch 74 of the lighting module 7, effectively preventing the buffer pad 232 from squeezing or interfering with the installation and removal of the lighting module 7, and providing elastic protection for the lighting module 7.

[0045] Specifically, the insulated box is also equipped with a latching assembly for assisting in the locking and sealing of the lid 2 and the box body 1. The latching assembly includes at least one latching groove 82 formed on the edge of the mounting flange 31 and extending through the upper and lower surfaces of the mounting flange 31, and at least one latch 81 provided on the side of the lid body 2 opposite to the connecting part 21 and correspondingly engaging with the latching groove 82. The latching assembly can optionally be configured as one or two sets to adapt to the needs of insulated boxes of different sizes and usage scenarios.

[0046] When in use, after the lid 2 is closed, the annular protrusion 23 and the annular relief groove 32 cooperate, and with the sealing effect of the first annular sealing ring 231 and the second annular sealing ring 312, a sealing barrier is formed. Then, the lid 2 and the box body 1 are further locked by the buckle assembly. The double sealing design greatly enhances the airtightness of the insulated box, effectively reduces heat exchange, and significantly improves the heat preservation performance of the insulated box. It can maintain the stable temperature inside the box for a longer time and meet the different heat preservation needs of users for food preservation, cold preservation of items, etc. At the same time, the good airtightness can also prevent external dust and moisture from entering the box and protect the cleanliness and safety of the items inside the box.

[0047] Specifically, the inner wall of the inner box 3 is provided with a horizontal slot 33 and a vertical sliding groove 34. The insulated box is also equipped with a partition plate 92 and a shelf 91 with locking feet. The locking feet are embedded in the horizontal slot 33 so that the shelf 91 can be detachably installed in the inner box 3. The two sides of the partition plate 92 are embedded in the vertical sliding groove 34 and slide in cooperation with the inner wall of the inner box 3. Users can freely install or remove the shelf 91 and partition plate 92 according to the size, shape and quantity of the stored items, adjust the internal space layout of the inner box 3, improve space utilization and make it convenient and practical.

[0048] Specifically, the insulated box is equipped with a traction assembly, which includes a pull rod 101 and rollers 102. The pull rod 101 is rotatably mounted on the outer surface of the box body 1 via a connecting arm, and the rollers 102 are connected to the roller mounting cavity on the outer wall of the box body 1 via detachable axle pins. When the insulated box needs to be moved, the user can pull the pull rod 101, and the rollers 102 will make the insulated box roll on the ground, easily achieving long-distance movement and reducing the user's carrying burden. It is especially suitable for outdoor camping, supermarket shopping, and other scenarios, making it convenient for users to carry a large number of items and improving the practicality of the product and the user experience.

[0049] Specifically, a drainage device is also provided on the side of the cabinet 1. The drainage device includes a drainage hole 111 penetrating the side of the cabinet 1, a drainage conduit 112 integrally formed with the side of the inner cabinet 3, and a drainage plug 113. The inner end of the drainage conduit 112 extends into the interior of the inner cabinet 3 and is located at the lowest point of the bottom surface of the inner cabinet. The outer end of the drainage conduit 112 passes through the drainage hole 111 and extends outward from the side of the cabinet 1. The drainage plug 113 is locked in place with the outer end of the drainage conduit 112. A sealing ring 114 is provided at the gap between the drainage conduit 112 and the drainage hole 111. When there is water in the cabinet, the user can open the drainage plug 113, and the water can be discharged from the drainage hole 111 through the drainage conduit 112. By setting up a drainage device, it is convenient for users to clean the insulated cabinet, drain the water in time, avoid the growth of bacteria and the generation of odors in the water, and maintain the hygiene of the cabinet. The design that fits the curvature of the bottom surface of the inner cabinet 3 ensures that the water can be completely drained, improving the cleaning effect and ease of use.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A thermal box with an anti-pinch structure and lighting function, comprising a box body with an opening at the top, a cover for closing the box body, and an inner box embedded in the box body, characterized in that: The cover is rotatably mounted on the inner box via a pivot; an anti-pinch module is provided between the cover and the inner box, the anti-pinch module including a damping structure for increasing the rotational resistance of the cover and a limiting structure that cooperates with the damping structure; an illumination module is provided on the surface of the cover corresponding to the inside of the box, the illumination module including an infrared sensor and an LED light group electrically connected to the infrared sensor, the detection end of the infrared sensor corresponding to the opening side of the box.

2. The insulated box with anti-pinch structure and lighting function according to claim 1, characterized in that, The top of the inner box is provided with a mounting flange extending towards the edge of the opening, and the mounting flange is sealed to the top edge of the box. A mounting groove is provided on one side of the mounting flange, and the cover is provided with a connecting part corresponding to the mounting groove. The mounting flange is provided with a through hole penetrating the wall of the mounting groove, and the connecting part is provided with a connecting hole coaxial with the through hole. The rotating shaft passes through the through hole and the connecting hole in sequence and is rotatably connected to the cover. A local area of ​​the rotating shaft surface is provided with an anti-slip structure, and the end of the rotating shaft is provided with a quick-release cap. The quick-release cap is a flat round protrusion with an operating groove on its outer end face.

3. The insulated box with anti-pinch structure and lighting function according to claim 2, characterized in that, The damping structure includes a damping clip and a limiting hole on the connecting part parallel to the connecting hole. The damping clip includes a base with a hollow cylindrical structure installed in the limiting hole, and a clip head and a spring housed in the base. The clip head is a T-shaped rod structure, with a first cylinder protruding from the limiting hole at the head and a second cylinder at the tail. The diameter of the first cylinder is larger than the diameter of the second cylinder. An annular boss is formed at the junction of the head and tail. The upper end of the base has a large-diameter opening for accommodating the head, and the lower end has a small-diameter opening for the tail to pass through. The transition between the large-diameter opening and the small-diameter opening forms an annular step. The spring is sleeved on the tail of the clip head, with the upper end of the spring fixedly connected to the annular boss and the lower end of the spring abutting against the annular step to allow the clip head to extend and retract axially along the base.

4. The insulated box with anti-pinch structure and lighting function according to claim 3, characterized in that, The top of the card head is an arc surface. The limiting structure includes a first limiting groove and a second limiting groove radially distributed on the inner box mounting groove wall with the through hole as the center. The first limiting groove and the second limiting groove cooperate with the arc surface for limiting. The first limiting groove is a straight groove located above the through hole and penetrating the upper surface of the mounting flange. The second limiting groove is a fan-shaped groove with the groove wall curvature adapted to the curvature of the arc surface. The mounting groove wall between the first limiting groove and the second limiting groove forms a damping contact area for the sliding of the card head.

5. The insulated box with anti-pinch structure and lighting function according to claim 1, characterized in that, The cover protrudes from the center of the inner surface of the box to form a ring support structure. Symmetrical clearance holes are provided on the ring support structure to accommodate the charging interface and switch of the lighting module. The lighting module can be detachably inserted into the inner space of the ring support structure.

6. The insulated box with anti-pinch structure and lighting function according to claim 5, characterized in that, The surface of the cover corresponding to the inside of the box is provided with an annular protrusion surrounding the annular support structure. The top of the inner box is provided with an annular clearance groove that mates with the annular protrusion. A first annular sealing ring is provided at the junction of the annular protrusion and the cover. A second annular sealing ring is provided in the area on the mounting flange that mates with the annular protrusion.

7. The insulated box with anti-pinch structure and lighting function according to claim 2, characterized in that, The insulated box is also provided with a buckle assembly for assisting in locking and sealing the lid and the box body. The buckle assembly includes at least one buckle groove formed on the edge of the mounting flange and penetrating the upper and lower surfaces of the mounting flange, and at least one buckle provided on the side of the lid opposite to the connecting part and correspondingly snapping into the buckle groove.

8. The insulated box with anti-pinch structure and lighting function according to claim 1, characterized in that, The inner wall of the inner box is provided with a horizontal slot and a vertical sliding groove. The insulated box is also provided with a partition plate and a shelf with locking feet. The locking feet are embedded in the horizontal slot so that the shelf can be detachably installed in the inner box. The two sides of the partition plate are embedded in the vertical sliding groove and slide in cooperation with the inner wall of the inner box.

9. The insulated box with anti-pinch structure and lighting function according to claim 1, characterized in that, The insulated box is equipped with a pulling assembly, which includes a pull rod and rollers. The pull rod is rotatably mounted on the outer surface of the box body via a connecting arm, and the rollers are connected to the roller mounting cavity on the outer side wall of the box body via a shaft pin.

10. The insulated box with anti-pinch structure and lighting function according to claim 1, characterized in that, The side of the box is also provided with a drainage device, which includes a drainage hole penetrating the side of the box, a drainage conduit integrally formed with the side of the inner box, and a drainage plug. The inner end of the drainage conduit extends into the inner box and is located at the lowest point of the bottom surface of the inner box. The outer end of the drainage conduit passes through the drainage hole and extends outward to the side of the box. The drainage plug is locked with the outer end of the drainage conduit, and a sealing ring is provided at the gap between the drainage conduit and the drainage hole.

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