Door spacing adjustment device, cabinet and refrigerator

Abstract

This application relates to a door spacing adjustment device, a cabinet, and a refrigerator, specifically in the field of refrigerator technology. The aim is to provide a device that facilitates adjusting the spacing between the door and the cabinet frame when closed. The door spacing adjustment device includes a base, an adjusting gear set, a transmission gear set, and a positioning component. The base has a positioning hole along a first direction, and the adjusting gear set, transmission gear set, and positioning component are disposed within the base. The transmission gear set meshes with the adjusting gear set, and the gear ratio between the two meshing gear sets is greater than 1. The positioning component meshes with the transmission gear set and is slidably disposed within the positioning hole. The adjusting gear set is configured to rotate and switch between a first state and a second state. When the adjusting gear set is in the first state, the positioning component is located within the positioning hole. When the adjusting gear set is in the second state, the positioning component extends from the positioning hole along the first direction to its maximum stroke state.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and in particular to a door spacing adjustment device, a refrigerator body, and a refrigerator. Background Technology

[0002] As an essential household appliance in modern families, the design and user experience of refrigerators directly impact user satisfaction. Large-capacity refrigerators often adopt a side-by-side door design, which, while convenient for storing and retrieving items and saving door space, presents several problems in practical use.

[0003] Because the doors are connected to the cabinet via hinges, various factors, such as manufacturing errors in parts, installation errors, deformation during foaming, twisting during transportation, and deformation during use, can easily cause inconsistencies in the distance between the two doors and the cabinet in a side-by-side refrigerator design. This results in a significant difference in the distance between the two doors and the cabinet when closed, meaning the two doors cannot be aligned on the front side, leading to a product defect and affecting the user experience. Utility Model Content

[0004] This application provides a door spacing adjustment device, a cabinet, and a refrigerator, aiming to provide a device that facilitates adjusting the spacing between the door and the cabinet frame body when the door is closed.

[0005] In a first aspect, some embodiments of this application provide a door spacing adjustment device, including a base, an adjusting gear set, a transmission gear set, and a positioning component. The base has a positioning hole along a first direction, and the adjusting gear set, transmission gear set, and positioning component are disposed within the base. The transmission gear set meshes with the adjusting gear set, and the gear ratio between the meshing transmission gear set and the adjusting gear set is greater than 1. The positioning component meshes with the transmission gear set and is slidably disposed within the positioning hole. The adjusting gear set is configured to rotate and switch between a first state and a second state. When the adjusting gear set is in the first state, the positioning component is located within the positioning hole. When the adjusting gear set is in the second state, the positioning component extends from the positioning hole along the first direction to its maximum stroke state.

[0006] Optionally, the transmission gear set includes a first gear and a second gear. The first gear meshes with an adjusting gear set, and the second gear meshes with a positioning component. The first gear and the second gear are coaxially connected, and the radius of the first gear is larger than the radius of the second gear.

[0007] Optionally, the first gear has a first insertion portion along the axial direction, and the second gear has a second insertion portion along the axial direction, with the first insertion portion and the second insertion portion being inserted and adapted to each other. A first transmission portion and a second transmission portion are adapted between the first insertion portion and the second insertion portion.

[0008] Optionally, the base includes a first cavity and a second cavity, with a first gear rotatably disposed within the first cavity and a second gear rotatably disposed within the second cavity. The first cavity and the second cavity are sequentially arranged and connected along a second direction, and the second direction forms an angle with the first direction.

[0009] Optionally, the positioning hole and the second cavity are sequentially arranged and connected along a third direction, and the first direction, the second direction, and the third direction have included angles with each other. Along the third direction, the sum of the width of the positioning hole and the radius of the second gear is less than or equal to the radius of the first gear.

[0010] Optionally, the door spacing adjustment device includes a locking component housed within the base. The adjustment gear set has a ratchet structure, and the locking component is connected to the ratchet structure to prevent the adjustment gear set from rotating from the second state to the first state.

[0011] Optionally, the adjusting gear set includes a third gear and a ratchet. The third gear is meshed with the transmission gear set, the ratchet is coaxially connected to the third gear, and the ratchet is connected to a locking assembly to prevent the third gear from rotating from the second state to the first state. Along the axial direction of the adjusting gear set, at least one of the two sides of the third gear and the ratchet that are far apart from each other is provided with an adjusting part, and the base is provided with an adjusting hole corresponding to the adjusting part. The adjusting part is aligned with the adjusting hole along the axial direction of the adjusting hole.

[0012] Optionally, the locking assembly includes a locking button, a first elastic element, and a resilient locking tongue. The base has a locking hole, and the locking button is slidably disposed within the locking hole. Along the axial direction of the locking hole, the first elastic element is compressed between the locking button and the base to keep the locking button in a locked state. Along the axial direction of the locking hole, the inner end of the resilient locking tongue is connected to the locking button, and the outer end of the resilient locking tongue is spaced apart from the locking button. In the locked state, the outer end of the resilient locking tongue contacts the teeth of a ratchet to prevent the ratchet from rotating from a second state to a first state.

[0013] Optionally, the positioning assembly includes a positioning rod, a positioning seat, and a second elastic element. The positioning rod is slidably disposed within the positioning hole and has multiple strip teeth along its length, which mesh with a transmission gear set. One end of the positioning seat is located within the positioning hole and connected to the positioning rod. The base also has a stabilizing cavity, and the other end of the positioning seat is located within the stabilizing cavity. Along the first direction, the second elastic element is located on the side of the positioning seat near the opening of the positioning hole, and the second elastic element is in a compressed state.

[0014] Optionally, the positioning component includes a buffer portion, and along the first direction, the end face of the positioning rod away from the positioning seat is provided with an insertion hole, and the buffer portion is adapted to be inserted into the insertion hole.

[0015] Optionally, the base includes a mounting base, a cover plate, and a partition, with the cover plate connected to the mounting base. The partition is disposed between the mounting base and the cover plate, forming a first cavity between the mounting base and the partition. A positioning hole and a second cavity are formed between the cover plate and the partition, and a third cavity and a locking hole are formed between the cover plate and the mounting base.

[0016] Secondly, some embodiments of this application provide a cabinet, including a cabinet frame body, a door, and the door spacing adjustment device mentioned in the previous aspect. The door is hinged to the cabinet frame body and is used to open or close the storage compartment. The door spacing adjustment device is installed on the side of the door away from the hinge and connected to the door. When the door closes the storage compartment, the end of the positioning component located outside the base contacts the cabinet frame body support and is used to adjust the spacing between the door and the cabinet frame body.

[0017] Optionally, the two ends of the door body along the vertical direction are designated as the first end and the second end. The base is connected to the first end of the door body, and the adjustment hole on the base is located on the side of the base away from the second end. The adjustment hole is used to adjust the adjustment gear set.

[0018] Thirdly, some embodiments of this application provide a refrigerator, including the cabinet described in the second aspect.

[0019] The technical solutions provided in this application have the following advantages compared with the prior art:

[0020] When the door spacing adjustment device is installed between the door and the main frame, it is located on the side of the door away from the hinge. With the door in the closed storage compartment, the exposed end of the positioning component at the positioning hole (i.e., the end of the positioning component outside the positioning hole) is supported by the main frame. Thus, when the adjusting gear set is rotated to drive the transmission gear set, causing the positioning component to slide within the positioning hole, the insertion depth of the positioning component within the positioning hole can be adjusted. The length of the end of the positioning component outside the base will change accordingly, thereby adjusting the spacing between the door and the main frame, i.e., adjusting the flatness of the door when closed.

[0021] Taking a refrigerator with a side-by-side door structure as an example, the door spacing adjustment device is installed at the two relatively close ends of the two oppositely positioned doors. The flatness of the doors when the storage compartment is closed (i.e., in the closed state) can be flexibly adjusted through two adjusting gear sets, so that the outer sides of the two doors away from the main body of the cabinet are aligned when closed, resulting in better flatness and aesthetics, thus providing users with a better user experience.

[0022] In the process of rotating the adjusting gear set to drive the transmission gear set, and then the rotating transmission gear set to drive the positioning component to slide and adjust within the positioning hole, the gear ratio between the transmission gear set and the adjusting gear set is greater than 1. This is equivalent to the radius ratio of the meshing gears in the transmission gear set and the adjusting gear set being less than 1. The transition from the adjusting gear set to the transmission gear set is a speed-reducing and force-saving structure. A larger rotation angle at the adjusting gear set drives a smaller rotation angle at the transmission gear set. This allows for position adjustment of the positioning component with a smaller torque at the adjusting gear set, enabling the user to adjust the distance between the door and the frame body when closed with a smaller force.

[0023] Conversely, the transmission structure from the positioning component to the adjusting gear set is a force-intensive one, which is equivalent to increasing the locking force on the positioning component. This allows the positioning component to maintain a relatively stable position within the positioning hole, thus keeping the distance between the door and the frame body stable. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0027] Figure 1 A top view of a refrigerator provided in an embodiment of this application;

[0028] Figure 2 for Figure 1 A sectional view of AA;

[0029] Figure 3 for Figure 2 A magnified view of a portion of point B in the middle;

[0030] Figure 4 for Figure 3 A cross-sectional view of the door spacing adjustment device shown in the figure;

[0031] Figure 5 for Figure 3An exploded view of the door spacing adjustment device shown in the figure;

[0032] Figure 6 for Figure 4 An exploded view of the transmission gear set shown in the diagram;

[0033] Figure 7 for Figure 4 A three-dimensional structural schematic diagram of the adjusting gear set shown in the figure;

[0034] Figure 8 for Figure 5 A three-dimensional structural schematic diagram of the mounting base shown in the figure;

[0035] Figure 9 for Figure 5 A three-dimensional structural schematic diagram of the separator shown in the figure;

[0036] Figure 10 for Figure 5 A three-dimensional structural schematic diagram of the cover plate shown in the figure;

[0037] Figure 11 for Figure 4 A cross-sectional view showing the adjusting gear set and locking assembly fitted together;

[0038] Figure 12 for Figure 5 A cross-sectional view showing the meshing connection between the first and third gears shown.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Container frame body; 110. Storage room;

[0041] 200. Door body;

[0042] 300. Door spacing adjustment device;

[0043] 310. Base; 311. Positioning hole; 312. Mounting base; 313. Cover plate; 314. Divider; 315. First cavity; 316. Second cavity; 317. Third cavity; 318. Locking hole; 319. Adjustment hole; 3111. Stabilizing cavity;

[0044] 320. Adjusting gear set; 321. Third gear; 322. Ratchet; 323. Adjusting part;

[0045] 330. Transmission gear set; 331. First gear; 332. Second gear; 333. First insertion part; 334. Second insertion part; 335. First transmission part; 336. Second transmission part;

[0046] 340. Positioning assembly; 341. Positioning rod; 342. Toothed bar; 343. Positioning seat; 344. Second elastic element; 345. Buffer part; 346. Insertion hole;

[0047] 350. Locking component; 351. Locking button; 352. Resilient bolt; 353. First elastic element;

[0048] Y, first direction; Z, second direction; X, third direction. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0051] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0052] Figure 1 This is a top view of a refrigerator provided in an embodiment of this application. Figure 2 for Figure 1 A cross-sectional view of AA. Figure 3 for Figure 2 A magnified view of a portion of point B in the middle. Figure 4 for Figure 3 A cross-sectional view of the door spacing adjustment device shown. Figure 5 for Figure 3 An exploded view of the door spacing adjustment device shown in the figure. Figure 6 for Figure 4 An exploded view of the transmission gear set shown. Figure 7 for Figure 4 The diagram shows a three-dimensional structure of the adjusting gear set. Figure 8 for Figure 5 The diagram shows a three-dimensional structure of the mounting base. Figure 9 for Figure 5 A three-dimensional structural diagram of the separator shown. Figure 10 for Figure 5 The diagram shows a three-dimensional structure of the cover plate component shown. Figure 11 for Figure 4 The diagram shows a cross-sectional view of the adjusting gear set and locking assembly being fitted together. Figure 12 for Figure 5 A cross-sectional view showing the meshing connection between the first and third gears shown.

[0053] Please see Figures 1 to 12 This application provides a door spacing adjustment device, a cabinet, and a refrigerator, aiming to provide a device that facilitates adjusting the spacing between the door and the cabinet frame when the door is closed.

[0054] like Figure 1 and Figure 2 As shown, the refrigerator includes a cabinet, which comprises a frame body 100 and a door 200. The frame body 100 has a storage compartment 110 inside, which can be at least one of a refrigerator compartment, a freezer compartment, a variable temperature compartment, and a soft-freeze compartment, used to extend the shelf life of pre-set items within the storage compartment 110. The door 200 is hinged to the frame body 100 and used to open or close the storage compartment 110.

[0055] The cabinet, including the frame body 100, door 200, and door spacing adjustment device 300, can be a regular wardrobe or bookcase with hinged or double doors. Alternatively, the cabinet can be a refrigerator or a high-temperature storage device, so that the items in the storage compartment 110 can be preserved under preset temperature and humidity conditions, etc., without limitation.

[0056] Large-capacity refrigerators are usually set up as follows Figure 1The double-door structure shown facilitates the storage and retrieval of items in the storage room 110 and reduces the space occupied during the opening process.

[0057] However, during the production, transportation, and use of refrigerators, due to factors such as processing errors of parts, installation process errors, deformation of foaming process, twisting and deformation during transportation, and deformation during use, the distance between the door 200 and the frame body 100 of the double-door refrigerator is inconsistent when the door is closed. That is, the two door 200 cannot be aligned on the front side, which leads to product defects and affects the user experience.

[0058] Based on this, such as Figure 2 and Figure 3 As shown, the refrigerator also includes a door spacing adjustment device 300, which is installed on the side of the door 200 away from the hinge. The door spacing adjustment device 300 can be connected to the door 200 or connected to the frame body 100 to adjust the spacing between the door 200 and the frame body 100.

[0059] Reference Figure 4 and Figure 5 The door spacing adjustment device 300 includes a base 310, an adjusting gear set 320, a transmission gear set 330, and a positioning component 340. The base 310 has a positioning hole 311 along a first direction Y. The adjusting gear set 320, the transmission gear set 330, and the positioning component 340 are disposed within the base 310. The transmission gear set 330 is meshed with the adjusting gear set 320, and the gear ratio between the transmission gear set 330 and the adjusting gear set 320 is greater than 1. The positioning component 340 is meshed with the transmission gear set 330 and is slidably disposed within the positioning hole 311. The adjusting gear set 320 is configured to rotate and switch between a first state and a second state.

[0060] For example, such as Figure 4 and Figure 5 As shown, the positioning assembly 340 may include a positioning rod 341, which is slidably disposed within the positioning hole 311. The positioning rod 341 has multiple strip teeth 342 along its length and meshes with the transmission gear set 330. By rotating the adjusting gear set 320 to drive the transmission gear set 330, the positioning rod 341 slides axially within the positioning hole 311, thereby adjusting the position of the positioning rod 341 relative to the positioning hole 311.

[0061] When the adjusting gear set 320 is in the first state, the positioning component 340 is in the positioning hole 311. At this time, the end of the positioning rod 341 does not protrude from the positioning hole 311, so that when the door 200 is in the closed state (i.e., the door 200 closes the storage compartment 110), the inner side of the door 200 can directly contact the box frame body 100.

[0062] When the adjusting gear set 320 is in Figure 3 and Figure 4 In the second state shown, the positioning component 340 extends from the positioning hole 311 to the maximum stroke state along the first direction Y, that is, the end of the positioning component 340 located outside the base 310 is in support contact with the box frame body 100 so that the door 200 and the box frame body 100 maintain the maximum distance.

[0063] In other words, in the second state, the end of the positioning rod 341 extends out of the positioning hole 311 and is in the maximum stroke state, so that the end of the positioning rod 341 supports and contacts the box frame body 100, thereby maintaining the maximum distance between the door 200 and the box frame body 100 when the door is closed.

[0064] In this way, by rotating the adjusting gear set 320 between the first state and the second state, the transmission gear set 330 is driven to rotate and the length of the end of the positioning component 340 extending out of the positioning hole 311 is adjusted, so that the end of the positioning component 340 extending out is supported between the door body 200 and the box frame body 100, thereby adjusting the distance between the door body 200 and the box frame body 100.

[0065] When the door spacing adjustment device 300 is installed between the door body 200 and the frame body 100, the door spacing adjustment device 300 is located on the side of the door body away from the hinge. When the door body 200 is in the closed storage compartment 110, the exposed end of the positioning component 340 at the positioning hole 311 (i.e., the end of the positioning component 340 outside the positioning hole 311) is supported by the frame body 100. Thus, when the adjusting gear set 320 is rotated to drive the transmission gear set 330 to make the positioning component 340 slide in the positioning hole, the insertion depth of the positioning component 340 in the positioning hole 311 can be adjusted, and the length of the end of the positioning component 340 outside the base 310 will change accordingly, thereby adjusting the spacing between the door body 200 and the frame body 100, that is, adjusting the flatness of the door body 200 when closed.

[0066] Taking a refrigerator with a side-by-side door structure as an example, the door spacing adjustment device 300 is installed at the two relatively close ends of the two oppositely arranged doors 200. The flatness of the doors 200 when the storage compartment 110 is closed (i.e., in the closed state) can be flexibly adjusted by two adjusting gear sets 320, so that the outer sides of the two doors 200 away from the main body of the cabinet frame 100 are aligned when closed, which has better flatness and aesthetics, so as to give users a better user experience.

[0067] During the process of rotating the adjusting gear set 320 to drive the transmission gear set 330 to rotate, and the rotating transmission gear set 330 driving the positioning component 340 to slide and adjust within the positioning hole 311, the gear ratio of the meshing transmission gear set 330 and the adjusting gear set 320 is greater than 1. This is equivalent to the ratio of the radii of the meshing gears of the transmission gear set 330 and the adjusting gear set 320 being less than 1. The transition from the adjusting gear set 320 to the transmission gear set 330 is a speed-reducing and force-saving structure. A larger rotation angle at the adjusting gear set 320 drives a smaller rotation angle at the transmission gear set 330. This allows for position adjustment of the positioning component 340 with a smaller torque at the adjusting gear set 320, enabling the user to adjust the distance between the door 200 and the frame body 100 in the closed state with a smaller force.

[0068] Conversely, the transmission structure from the positioning component 340 to the adjusting gear set 320 is a force-intensive transmission structure, which is equivalent to increasing the locking force on the positioning component 340, thereby enabling the positioning component 340 to maintain a relatively stable position within the positioning hole 311, so that the distance between the door body 200 and the box frame body 100 remains stable.

[0069] like Figure 5 and Figure 6 As shown, the transmission gear set 330 includes a first gear 331 and a second gear 332. The first gear 331 meshes with the adjusting gear set 320 (e.g., Figure 4 As shown, the second gear 332 is meshed with the positioning assembly 340. The first gear 331 and the second gear 332 are coaxially connected, and the radius of the first gear 331 is larger than the radius of the second gear 332.

[0070] In other words, the first gear 331 and the second gear 332 rotate synchronously and have the same rotation angle, but the linear displacement of the first gear 331 at the same rotation angle is greater than that of the second gear 332. This is to ensure that the ratio of the linear displacement at the adjusting gear set 320 to the linear displacement at the positioning component 340 is greater than 1. That is, the larger stroke of the adjusting gear set 320 drives the positioning component 340 to move a smaller stroke within the positioning hole 311, thereby improving the adjustment accuracy of the displacement at the positioning component 340.

[0071] For example, the ratio of the radii of the first gear 331 to the second gear 332 can be set to 1-10. For instance, the ratio of the radii of the first gear 331 to the second gear 332 can be 2, 3, 4, 5, 6, 7, 8, 9, or 10. Taking a ratio of 3 for the radii of the first gear 331 and the second gear 332 as an example, adjusting the gear set 320 to the positioning rod 341 can improve the adjustment accuracy by three times. Taking a ratio of 10 for the radii of the first gear 331 and the second gear 332 as an example, adjusting the gear set 320 to the positioning rod 341 can improve the adjustment accuracy by ten times.

[0072] In some embodiments, such as Figure 4 and Figure 7 As shown, the adjusting gear set 320 includes a third gear 321. The third gear 321 is meshed with the transmission gear set 330. Figure 12 The third cavity 317 is connected to the first cavity 315 so that the third gear 321 meshes with the first gear 331, so that the positioning rod 341 can be slidably adjusted in the positioning hole 311 by the third gear 321, the first gear 331 and the second gear 332.

[0073] Based on this, the ratio of the radius of the portion of the adjusting gear set 320 that meshes with the first gear 331 (i.e., the third gear 321) to the radius of the first gear 331 can be less than 1. For example, the radius ratio of the first gear 331 and the third gear 321 can be between 1 and 10, meaning their meshing ratio and radius ratio are the same. The radius ratio and meshing ratio of the first gear 331 and the third gear 321 can be 2, 3, 4, 5, 6, 7, 8, 9, or 10. Taking a radius ratio and meshing ratio of 3 for the first gear 331 and the third gear 321 as an example, adjusting the gear set 320 to the transmission gear set 330 can save 2 / 3 of the adjustment effort. Taking a radius ratio and meshing ratio of 10 for the first gear 331 and the third gear 321 as an example, adjusting the gear set 320 to the transmission gear set 330 can save 9 / 10 of the adjustment effort.

[0074] In some embodiments, such as Figure 6 As shown, the first gear 331 has a first insertion portion 333 along the axial direction, and the second gear 332 has a second insertion portion 334 along the axial direction. The first insertion portion 333 and the second insertion portion 334 are inserted and adapted to each other. A first transmission portion 335 and a second transmission portion 336 are adapted between the first insertion portion 333 and the second insertion portion 334.

[0075] For example, the first insertion part 333 is an insertion hole structure located at the axis of the first gear 331, and the second insertion part 334 is a insertion rod structure located at one end of the second gear 332. The second insertion part 334 is axially inserted into the first insertion part 333. Correspondingly, a first transmission part 335 can be provided at the first insertion part 333, which can be a protruding structure (i.e., a transmission key) on the inner wall of the insertion hole structure. A second transmission part 336 is provided at the second insertion part 334, which can be a recessed structure (relative to the transmission groove) on the outer side of the insertion rod structure. When the second insertion part 334 is axially inserted into the first insertion part 333, the keyway-fitted first transmission part 335 and second transmission part 336 prevent the first insertion part 333 from rotating relative to the second insertion part 334, so that the first gear 331 can drive the second gear 332 to rotate, thereby improving the displacement accuracy at the positioning rod 341.

[0076] Alternatively, the first insertion part 333 can be a plug structure located at one end of the first gear 331, and the second insertion part 334 can be a plug hole structure located at the shaft of the second gear 332. Correspondingly, a second transmission part 336 can be provided at the first insertion part 333, and a first transmission part 335 can be provided at the second insertion part 334. The first transmission part 335 can be a raised transmission key or a recessed transmission groove, and the second transmission part 336 can be a corresponding transmission groove or transmission key. It is only necessary to enable the first gear 331 to drive the second gear 332 to rotate; there are no limitations on this.

[0077] By setting the first gear 331 and the second gear 332 as separate structures and plugging them in, it is possible to manufacture the first gear 331 and the second gear 332 separately, and the diameter ratio between the first gear 331 and the second gear 332 can be flexibly adjusted as needed.

[0078] The base 310 can be a one-piece molded structure, with positioning holes 311 provided on the base 310, and an adjusting gear set 320, a transmission gear set 330 and a positioning component 340 installed inside the base 310.

[0079] Alternatively, the base 310 can be designed as a separate unit. For example... Figure 5 and Figure 8 As shown, the base 310 includes a mounting base 312 and a cover plate 313. The cover plate 313 is connected to the mounting base 312 to form a chamber structure between the cover plate 313 and the mounting base 312 for mounting the adjusting gear set 320, the transmission gear set 330 and the positioning assembly 340.

[0080] The cover plate 313 can be fixedly connected to the mounting base 312 by adhesive or heat fusion to improve the overall structural strength. Alternatively, the cover plate 313 can be detachably connected to the mounting base 312 by means of clips or screws, which facilitates assembly and subsequent disassembly and maintenance.

[0081] like Figure 8 and Figure 9 As shown, the base 310 has a first cavity 315 and a second cavity 316. A first gear 331 is rotatably disposed in the first cavity 315, and a second gear 332 is rotatably disposed in the second cavity 316. The first cavity 315 and the second cavity 316 are arranged sequentially and connected along the second direction Z, and there is an angle between the second direction Z and the first direction Y.

[0082] Taking the first direction Y as the front-to-back direction as an example, the second direction Z can be the up-to-down direction. That is, the first direction Y and the second direction Z are perpendicular to each other.

[0083] By providing a first cavity 315 and a second cavity 316 arranged sequentially in the vertical direction within the base 310, and rotatably installing a first gear 331 within the first cavity 315 and a second gear 332 within the second cavity 316, interference from other structures with the rotation of the first gear 331 and the second gear is avoided.

[0084] like Figure 5 and Figure 9 As shown, the base 310 also includes a separator 314, which is disposed between the mounting base 312 and the cover plate 313. Figure 8 and Figure 9 As shown, a first cavity 315 is formed between the mounting base 312 and the partition 314. Figure 9 and Figure 10 As shown, a positioning hole 311 and a second cavity 316 are formed between the cover plate 313 and the partition 314. A stabilizing cavity 3111 is also formed between the cover plate 313 and the partition 314. A third cavity 317 and a locking hole 318 are formed between the cover plate 313 and the mounting base 312.

[0085] Specifically, by forming a first cavity 315, a second cavity 316, a positioning hole 311, a third cavity 317, and a locking hole 318 within the split-structure base 310, it is possible to accommodate and install a first gear 331, a second gear 332, a positioning assembly 340, an adjusting gear set 320, and a locking assembly within the base 310. The split-structure base 310 facilitates assembly production and disassembly and maintenance.

[0086] The first gear 331 has a circular hole at one end axially away from the second gear 332. The mounting base 312 has a cylindrical or annular protrusion corresponding to this circular hole, allowing the axial end of the first gear 331 to be rotatably supported on the inner side of the base 310. The positions of the circular hole or protrusion can be interchanged; this is not limited. The other axial end of the first gear 331 is inserted into and fitted with the second gear 332.

[0087] The separator 314 has a lateral annular structure that forms the second cavity 316. The second gear 332 has a circular hole structure or a protruding post structure at one end away from the first gear 331 along the axial direction. The cover plate 313 has a protruding post (protruding ring) structure or a circular hole structure that is adapted to the second gear 332 so that the other end of the second gear 332 is rotatably supported on the inner side of the cover plate 313.

[0088] Among them, such as Figure 4 and Figure 9 As shown, the positioning hole 311 and the second cavity 316 are sequentially arranged and connected along the third direction X. This allows the second gear 332 to mesh with the positioning rod 341 inside the positioning hole 311, thereby adjusting the relative position of the positioning rod 341 within the positioning hole 311.

[0089] Combination Figure 4 and Figure 9 The first direction Y, the second direction Z, and the third direction X are at angles to each other, such as the third direction X being a left or right direction. Along the third direction X, the sum of the width of the positioning hole 311 and the radius of the second gear 332 is less than or equal to the radius of the first gear 331.

[0090] By setting the positioning holes 311 and the second cavity 316 to be sequentially distributed along the third direction X, and ensuring that the sum of the width of the positioning hole 311 and the radius of the second gear 332 (or the second cavity 316) is less than or equal to the radius of the first gear 331 (or the first cavity 315), the arrangement of the positioning holes 311 and the second gear 332 will not occupy additional internal space of the base 310 in the third direction X, which is beneficial to the compact design of the overall structure.

[0091] In some embodiments, such as Figure 4 As shown, the door spacing adjustment device 300 also includes a locking component 350, which is disposed within the base 310. The adjustment gear set 320 is provided with a ratchet structure, and the locking component 350 is connected to the ratchet structure to prevent the adjustment gear set 320 from rotating from the second state to the first state.

[0092] The locking assembly 350 is a device that restricts the reverse movement of gears through a mechanical structure. By setting the locking assembly 350, which restricts the adjustment gear set 320, a one-way locking is formed within the base 310. This allows the adjustment gear set 320 to rotate smoothly from the first state to the second state, so that the positioning rod 341 extends outward from the positioning hole 311. It also prevents the adjustment gear set 320 from rotating from the second state to the first state, thus preventing the positioning rod 341 from retracting into the positioning hole 311. This avoids the retraction of the positioning rod 341 from affecting the distance between the door body 200 and the box frame body 100, ensuring that the distance between the door body 200 and the box frame body 100 remains stable after adjustment.

[0093] For example, such as Figure 5 and Figure 7 As shown, the adjusting gear set 320 includes a third gear 321 and a ratchet 322. Figure 12 As shown, the third gear 321 meshes with the first gear 331, driving the first gear 331 to rotate. The ratchet 322 is coaxially connected to the third gear 321, engaging... Figure 4 The ratchet 322 is connected to the locking assembly 350 so that the locking assembly 350 prevents the third gear 321 from rotating from the second state to the first state.

[0094] Among them, such as Figure 7 As shown, at least one of the third gear 321 and ratchet 322, located on opposite sides of the adjusting gear set 320, is provided with an adjusting part 323. Figure 10 As shown, the base 310 has an adjustment hole 319 corresponding to the adjustment part 323. The adjustment part 323 is aligned with the adjustment hole 319 along the axial direction of the adjustment hole 319.

[0095] Since the third gear 321 is coaxially connected to the ratchet 322, and the ratchet 322 is connected to the locking assembly 350, the third gear 321 is prevented from rotating in the reverse direction from the second state to the first state, so that the third gear 321 can only rotate in the forward direction from the first state to the second state. This enables the positioning rod 341 to extend and adjust in one direction within the positioning hole 311, so that the distance between the door body 200 and the box frame body 100 can remain stable for a long time.

[0096] The ratchet 322 and the third gear 321 can be either an integral or separate structure. An integral ratchet 322 and third gear 321 have better overall structural strength. A separate ratchet 322 and third gear 321 are easier to manufacture and assemble.

[0097] Based on this, along the axial direction of the third gear 321 (such as the second direction Z), an adjustment part 323 is provided on at least one of the two outer sides of the third gear 321 and the ratchet 322 that are far apart from each other. The adjustment part can be a concave structure or a convex structure, such as a cross-shaped, straight, hexagonal, triangular, rectangular or plum blossom-shaped structure, so as to facilitate the rotation of the adjustment gear set 320 by corresponding plug-in adapter.

[0098] Taking the cover plate 313 located on the upper side of the mounting base 312 as an example, the third gear 321 is disposed on the upper side of the ratchet 322, and the upper end of the third gear 321 is provided with a protrusion, the end of which is provided with an adjustment part 323. The third gear 321 is rotatably mounted in the third cavity 317, and the inner side of the cover plate 313 is provided with an adjustment hole 319 corresponding to the protrusion. The adjustment hole 319 is used to insert and adapt the protrusion so that the third gear 321 and the ratchet 322 are stably mounted in the third cavity 317, and a tool can be inserted and adapted to the adjustment part 323 through the adjustment hole 319 to rotate the third gear 321, thereby driving the positioning rod 341 to move in the positioning hole 311.

[0099] In practical applications, taking the door spacing adjustment device 300 located at the upper end of the door body 200 as an example, the adjustment hole 319 can be set upwards, and the door body 200 can be closed so that the opening of the positioning hole 311 faces the box frame body 100. The operator can directly insert a screwdriver or other tool into the adjustment hole 319 from top to bottom to fit the adjustment part 323, thereby adjusting the extension length of the end of the positioning rod 341 to precisely adjust the spacing between the door body 200 and the box frame body 100.

[0100] During the process of rotating the third gear 321 to adjust the extension length of the positioning rod 341, the multiple teeth of the ratchet 322 are unidirectionally matched with the locking assembly 350. This allows the ratchet 322 to switch from one locked tooth to another with only a small rotation of the third gear 321, thus preventing the positioning rod 341 from retracting inward and affecting the adjustment accuracy. This achieves automatic locking of the position without the need for secondary operation of the fastening components, which is quite convenient.

[0101] In some embodiments, such as Figure 4 , Figure 5 and Figure 11As shown, the locking assembly 350 includes a locking button 351, a first elastic element 353, and an elastic latch 352. The base 310 has a locking hole 318, and the locking button 351 is slidably disposed within the locking hole 318. Along the axial direction of the locking hole 318, the first elastic element 353 is compressed between the locking button 351 and the base 310 to keep the locking button 351 in a locked state. Along the axial direction of the locking hole 318, the inner end of the elastic latch 352 is connected to the locking button 351, and the outer end of the elastic latch 352 is spaced apart from the locking button 351. Furthermore, in the locked state, the outer end of the elastic latch 352 contacts the teeth of the ratchet 322 to prevent the ratchet 322 from rotating from the second state to the first state.

[0102] The locking button 351 is slidably disposed within the locking hole 318, meaning that the locking button 351 can be axially displaced within the locking hole 318. The locking hole 318 can be a circular hole or a rectangular hole, etc., with a central axis. The first elastic element 353 is in a pre-compressed state to keep the locking button 351 in the open position of the locking hole 318 and maintain it in a locked state. The outer end of the elastic locking tongue 352 is spaced apart from the locking button 351, meaning that the end of the locking tongue and the button body form a cantilever structure, so as to achieve contact separation with the ratchet 322 through elastic deformation.

[0103] When unlocking is required, the locking button 351 can be pressed along the axial direction of the locking hole 318. At this time, the first elastic element 353 is further compressed, and the elastic locking tongue 352 moves inward with the locking button 351, causing its outer end to disengage from the tooth surface of the ratchet 322. At this time, the adjusting gear set 320 can rotate in either the forward or reverse direction to adjust the retraction length of the positioning rod 341 inward. After the adjusting gear set 320 has completed the rotation switch, releasing the locking button 351 will reset the first elastic element 353, and the outer end of the elastic locking tongue 352 will abut against the tooth surface of the ratchet 322 again to form a one-way limit. During this process, the cantilever structure of the elastic locking tongue 352 allows the ratchet 322 to rotate only in one direction when locked. When rotating in the reverse direction, the tooth surface of the ratchet 322 contacts the outer end face of the elastic locking tongue 352 to prevent the ratchet 322 from rotating in the reverse direction.

[0104] The locking hole 318 can be opened along the first direction Y. Taking the locking hole 318 and the positioning hole 311 as a blind hole structure as an example, the openings of the locking hole 318 and the positioning hole 311 are located on the same side of the base 310, which makes it easy to unlock the locking state of the adjustment gear set 320 by pressing the locking button 351.

[0105] This solution achieves one-way self-locking through the engagement of the elastic locking tongue 352 and the ratchet 322, maintaining the stability of the one-way limit without additional operation. Simultaneously, the press-type operation of the locking component 350 can release the locked state and simplify the operation steps. In other words, the one-way locking function prevents accidental reset of the adjusting gear set 320 and positioning component 340 due to vibration or accidental touch, ensuring the stability of the adjusted door spacing. Furthermore, the cooperation between the press-type locking button 351 and the elastic locking tongue 352 simplifies locking and unlocking operations, improving the user experience.

[0106] In some other embodiments, the outer end of the elastic latch 352 can be replaced by an inclined locking end, and the locking end can be moved between the locked and unlocked states by a linear motor. This eliminates the need for an additional locking button and a first elastic element, and is not limiting in this regard.

[0107] In some embodiments, such as Figure 4 and Figure 5 As shown, the positioning assembly 340 also includes a positioning seat 343 and a second elastic member 344. One end of the positioning seat 343 is located inside the positioning hole 311 and connected to the positioning rod 341. The base 310 also has a stabilizing cavity 3111. Figure 9 and Figure 10 As shown, the stabilizing cavity 3111 can be located between the separator 314 and the cover plate 313. The stabilizing cavity 3111 is partially connected to the positioning hole 311 at the end away from the opening. The other end of the positioning seat 343 is located inside the stabilizing cavity 3111. Along the first direction Y, the second elastic member 344 is located on the side of the positioning seat 343 near the opening of the positioning hole 311, and the second elastic member 344 is in a compressed state.

[0108] The second elastic element 344, in cooperation with the positioning seat 343, provides a pre-force to the positioning rod 341 to move into the positioning hole 311. When the locking assembly 350 is unlocked, the positioning rod 341 automatically retracts into the positioning hole 311 under the reset force of the second elastic element 344, driving the second gear 332, the first gear 331, the third gear 321, and the ratchet 322 to rotate in opposite directions. That is, during the adjustment process of reducing the distance, the positioning assembly 340 can be reset simply by unlocking the locking assembly 350, thereby allowing for readjustment of the extension length of the positioning rod 341. This eliminates the need to press the locking button 351 with one hand and rotate the adjusting gear set 320 with the other, facilitating the operator's adjustment operation.

[0109] Furthermore, since the positioning rod 341 and the second gear 332 are mostly meshed through a spur gear structure, there is a fitting gap between them. By setting the second elastic element 344 and the positioning seat 343, the extension range of the positioning rod 341 is kept to a minimum within the fitting gap range, thereby improving the adjustment accuracy of the gap of the door body 200.

[0110] Among them, such as Figure 4 and Figure 5 As shown, the positioning component 340 also includes a buffer part 345. Along the first direction Y, the end face of the positioning rod 341 away from the positioning seat 343 is provided with an insertion hole 346, and the buffer part 345 is inserted into and adapted to the insertion hole 346.

[0111] The buffer part 345 can be made of flexible material such as rubber or silicone. It is installed on the outer end face of the positioning rod 341 through the insertion and fitting of the insertion hole 346, so that the positioning rod 341 and the box frame body 100 are buffered in contact through the buffer part 345. This avoids impact noise and friction loss caused by rigid collision.

[0112] It should be noted that when installing the door spacing adjustment device 300 on the door body 200, taking the two ends of the door body 200 along the vertical direction Z (i.e., the second direction) as the first end and the second end as an example. The base 310 is connected to the first end of the door body 200, and the adjustment hole 319 on the base 310 is located on the side of the base 310 away from the second end. The adjustment hole 319 is used to adjust the adjustment gear set 320.

[0113] Thus, if the door spacing adjustment device 300 is installed at the upper end of the door body 200, the adjustment hole 319 is located on the upper side of the door spacing adjustment device 300, making it easy to insert from top to bottom into the adjustment hole 319 to fit into the adjustment part 323 and drive the third gear 321 to rotate. This adjusts the spacing between the door body 200 and the box frame body 100 without any other operation.

[0114] If the door spacing adjustment device 300 is installed at the lower end of the door body 200, then the adjustment hole 319 is located on the lower side of the door spacing adjustment device 300, making it easy to insert from bottom to top into the adjustment hole 319 to fit into the adjustment part 323 and drive the third gear 321 to rotate. This adjusts the spacing between the door body 200 and the box frame body 100 without any other operation.

[0115] Wherein, when the positioning rod 341 and the buffer part 345 are flush with the opening of the positioning hole 311, the extension distance of the positioning rod 341 driving the buffer part 345 is defined as L, the radius of the first gear 331 is R1, the radius of the second gear 332 is R2, the rotation angle of the second gear 332 and the first gear 331 is A1, the radius of the ratchet 322 and the third gear 321 is R3, and the rotation angle of the ratchet 322 is A3.

[0116] That is, the extension distance L = 2·π·R2·A1 / 360 = π·R2·A1 / 180.

[0117] Furthermore, between the first gear 331 and the ratchet 322, the above parameters satisfy:

[0118] 2·π·R1·A1 / 360=2·π·R3·A3 / 360;

[0119] That is, A1 = R3·A3 / A1.

[0120] Since the radii of the third gear 321 and the ratchet 322 are equal, and the radius R1 of the first gear 331 is greater than the radius R3 of the third gear, and the rotation angles of the first gear 331 and the second gear 332 are equal, that is, the rotation angle A1 of the second gear 332 is less than the rotation angle of the ratchet 322.

[0121] As can be seen from the above, the larger the ratio (or meshing ratio) of the radii of the first gear 331 and the third gear 321, the larger the angle that the adjusting gear set 320 needs to rotate to make the transmission gear set 330 rotate by a corresponding (i.e., a smaller) angle, and to make the positioning component 340 extend by a corresponding length. The rotation adjustment at the corresponding adjusting gear set 320 is more labor-saving.

[0122] If the ratio of the radii of the first gear 331 to the second gear 332 is larger, that is, the radius of the second gear 332 is smaller, then the sliding displacement of the positioning component 340 driven by the first gear 331 through the second gear 332 under the same rotation angle is smaller, thereby making the gap adjustment at the door body 200 more precise.

[0123] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0124] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0125] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A device for adjusting the distance between doors of a container, characterized in that include: A base (310) is provided with a positioning hole (311) along a first direction; An adjusting gear set (320) is disposed within the base (310); A transmission gear set (330) is disposed in the base (310) and meshes with the adjustment gear set (320), wherein the gear ratio between the transmission gear set (330) and the adjustment gear set (320) is greater than 1. And a positioning component (340) is located in the base (310) and meshes with the transmission gear set (330). The positioning component (340) is slidably disposed in the positioning hole (311). The adjusting gear set (320) is configured to rotate and switch between a first state and a second state. When the adjusting gear set (320) is in the first state, the positioning component (340) is located in the positioning hole (311); When the adjusting gear set (320) is in the second state, the positioning component (340) extends from the positioning hole (311) along the first direction to the maximum stroke state.

2. The chest door spacing adjustment device of claim 1, wherein, The transmission gear set (330) includes: The first gear (331) meshes with the adjusting gear set (320); And a second gear (332), which meshes with the positioning assembly (340); The first gear (331) and the second gear (332) are coaxially connected, and the radius of the first gear (331) is larger than the radius of the second gear (332).

3. The chest door spacing adjustment device of claim 2, wherein, The first gear (331) is provided with a first insertion part (333) along the axial direction, and the second gear (332) is provided with a second insertion part (334) along the axial direction. The first insertion part (333) and the second insertion part (334) are inserted and adapted to each other. A first transmission part (335) and a second transmission part (336) are provided between the first plug-in part (333) and the second plug-in part (334).

4. The chest door spacing adjustment device of claim 3, wherein, The base (310) is provided with a first cavity (315) and a second cavity (316), the first gear (331) is rotatably disposed in the first cavity (315), and the second gear (332) is rotatably disposed in the second cavity (316); The first cavity (315) and the second cavity (316) are arranged sequentially and connected along the second direction, and the second direction has an angle with the first direction.

5. The chest door spacing adjustment device of claim 4, wherein, The positioning hole (311) and the second cavity (316) are sequentially arranged and connected along a third direction, and the first direction, the second direction and the third direction have an angle between each other; Along the third direction, the sum of the width of the positioning hole (311) and the radius of the second gear (332) is less than or equal to the radius of the first gear (331).

6. The door spacing adjustment device according to any one of claims 1-5, characterized in that, The door spacing adjustment device includes: A locking component (350) is disposed within the base (310); the adjusting gear set (320) is provided with a ratchet (322) structure, and the locking component (350) is connected to the ratchet (322) structure to prevent the adjusting gear set (320) from rotating and switching from the second state to the first state.

7. The chest door spacing adjustment device of claim 6, wherein, The adjusting gear set (320) includes: The third gear (321) meshes with the transmission gear set (330); And a ratchet (322) is coaxially connected to the third gear (321), the ratchet (322) is connected to the locking assembly (350) to prevent the third gear (321) from rotating from the second state to the first state; In this configuration, at least one of the third gear (321) and the ratchet (322) on opposite sides of the adjusting gear set (320) is provided with an adjusting part (323), and the base (310) is provided with an adjusting hole (319) corresponding to the adjusting part (323). The adjusting part (323) is aligned with the adjusting hole (319) along the axial direction of the adjusting hole (319).

8. The chest door spacing adjustment device of claim 7, wherein, The locking component (350) includes: A locking button (351) is provided in the base (310), and the locking button (351) is slidably disposed in the locking hole (318); The first elastic element (353) is compressed and disposed between the locking button (351) and the base (310) along the axial direction of the locking hole (318) so that the locking button (351) remains in a locked state; And a resilient locking tongue (352), along the axial direction of the locking hole (318), the inner end of the resilient locking tongue (352) is connected to the locking button (351), and the outer end of the resilient locking tongue (352) is spaced apart from the locking button (351); the outer end of the resilient locking tongue (352) contacts the teeth of the ratchet (322) in the locked state to prevent the ratchet (322) from rotating from the second state to the first state.

9. The inter-bay door spacing adjustment device of any one of claims 1-5, wherein, The positioning component (340) includes: The positioning rod (341) is slidably disposed in the positioning hole (311). The positioning rod (341) has a plurality of strip teeth (342) along its length direction, which mesh with the transmission gear set (330). A positioning seat (343), one end of which is located inside the positioning hole (311) and connected to the positioning rod (341); The base (310) is further provided with a stabilizing cavity (3111) and the other end of the positioning seat (343) is located in the stabilizing cavity (3111); along the first direction, the second elastic element (344) is located on the side of the positioning seat (343) near the opening of the positioning hole (311), and the second elastic element (344) is in a compressed state.

10. The chest door spacing adjustment device of claim 9, wherein, The positioning component (340) includes: The buffer part (345) is provided with an insertion hole (346) on the end face of the positioning rod (341) away from the positioning seat (343) along the first direction, and the buffer part (345) is adapted to be inserted into the insertion hole (346).

11. The inter-bay door spacing adjustment device of any one of claims 1-5, wherein, The base (310) includes: Mounting bracket (312); A cover plate (313) is connected to the mounting base (312); And a separator (314), the separator (314) being disposed between the mounting base (312) and the cover plate (313), a first cavity (315) being formed between the mounting base (312) and the separator (314), a positioning hole (311) and a second cavity (316) being formed between the cover plate (313) and the separator (314), and a third cavity (317) and a locking hole (318) being formed between the cover plate (313) and the mounting base (312).

12. A case characterized by, include: The main body of the box frame (100) has a storage room (110) inside; A door (200) is hinged to the box frame body (100) via a hinge, and is used to open or close the storage room (110); And the door spacing adjustment device as described in any one of claims 1-11, wherein the door spacing adjustment device is installed on the side of the door body (200) away from the hinge and connected to the door body (200); when the door body (200) closes the storage compartment (110), one end of the positioning component (340) located outside the base (310) is in support contact with the box frame body (100) for adjusting the spacing between the door body (200) and the box frame body (100).

13. The case of claim 12, wherein, The two ends of the door body (200) along the vertical direction are the first end and the second end; The base (310) is connected to the first end of the door (200), and the adjustment hole (319) on the base (310) is located on the side of the base (310) away from the second end. The adjustment hole (319) is used to adjust the adjustment gear set (320).

14. A refrigerator characterized by comprising: Includes the enclosure as described in claim 12 or 13.

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