Refrigeration device

Abstract

The present application relates to the field of electrical appliances, and specifically discloses a refrigeration device. The refrigeration device comprises a box body, a chamber formed in the box body, and a pull-out mechanism connecting the box body to a door body. The pull-out mechanism comprises a sliding rail provided on the box body, a first support in sliding fit with the sliding rail along a front-to-rear direction, and a second support connected to a front side of the first support, the door body being rotatably connected to the second support. When using the present application, the door body can first rotate at a slight angle relative to the second support, so as to create a gap between one side of the door body and the box body in the height direction of the door body that places the interior and the exterior of the chamber in communication, so that the air pressure inside and outside the chamber can be balanced, thereby reducing a door opening force.

Description

Refrigeration equipment

[0001] This application is based on the Chinese patent application with application number 202311273916.X and application date September 28, 2023, and claims the priority of the Chinese patent application. The entire content of the above patent application is hereby introduced into this application as a reference. Technical Field

[0002] The present application relates to the field of electrical appliances, and in particular to a refrigeration device. Background Art

[0003] After the drawer-type door in refrigeration equipment such as French multi-door refrigerators is closed, the required door-opening force can reach 60-70N due to factors such as the pressure difference inside and outside the door, the self-locking force of the slide rail, the suction force of the door seal, and the load gravity. For some users with less strength, the door-opening experience is not very friendly.

[0004] In the related art, in order to reduce the door opening force, there are solutions that use mechanical assistance or release the negative pressure in the compartment. However, the mechanical assistance solution requires the design of components such as power assistance handles, which is costly, and the mechanical structure may damage the U-shell or middle beam of the box, damaging the appearance of the box. The negative pressure release solution takes a long time, and the door opening force reduced by these two solutions is still limited.

[0005] The reference to any related art in the specification does not constitute an acknowledgement or suggestion that the related art forms part of the common general knowledge in any jurisdiction, or that it can reasonably be expected that the related art would be understood, regarded as relevant and / or combined with other related technologies by a person skilled in the art. Summary of the Invention

[0006] The purpose of this application is to provide a refrigeration device that further reduces the door opening force.

[0007] To achieve the above-mentioned purpose, the present application provides a refrigeration device, including a box body, a compartment formed in the box body, a door body located on the front side of the compartment, and a pulling mechanism that connects the door body to the box body in a front-to-rear direction. The pulling mechanism includes a slide rail provided on the box body, a first bracket that slides with the slide rail in the front-to-rear direction, and a second bracket connected to the front side of the first bracket. The door body and the second bracket are rotatably connected so that a gap connecting the inside and outside of the compartment can be generated between the door body and the box body from one side in the height direction. The pulling mechanism also includes a limiting structure provided between the door body and the second bracket to limit the rotation angle of the door body relative to the second bracket.

[0008] Beneficial effects of this application:

[0009] The refrigeration equipment provided in the present application is different from the existing drawer-type door design that only moves in the horizontal direction when opened. When the user opens the door, the door can first rotate a certain angle relative to the second bracket to create a gap connecting the indoor and outdoor spaces between the door and the box body from one side in the height direction. This can balance the air pressure inside and outside the room and reduce the force to open the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a schematic structural diagram of a refrigeration device according to an embodiment of the present application, wherein the middle chamber is in an open state;

[0011] FIG2 is a side view schematic diagram of the structure of a refrigeration device provided in one embodiment of the present application;

[0012] FIG3 is a front view schematic diagram of the structure of a refrigeration device provided in one embodiment of the present application;

[0013] FIG4 is a schematic structural diagram of the door body and the drawing mechanism in FIG1 ;

[0014] FIG5 is a schematic structural diagram of the right half of FIG4 ;

[0015] FIG6 is a schematic diagram of the explosion structure of the right half of FIG4 ;

[0016] FIG7 is a rear structural schematic diagram of the door body and the drawing mechanism in FIG1 ;

[0017] FIG8 is a partial cross-sectional view of FIG7 taken along the AA direction.

[0018] FIG9 is a schematic diagram of a cross-section of a portion of the structure of a refrigeration device provided in one embodiment of the present application;

[0019] FIG10 is an exploded schematic diagram of a portion of the structure of a refrigeration device provided in one embodiment of the present application;

[0020] FIG11 is a schematic structural diagram of a portion of a pulling mechanism in another embodiment of the present application;

[0021] FIG12 is a schematic diagram of the structure in FIG11 after being cut apart;

[0022] FIG13 is a schematic cross-sectional view of a portion of the structure of a refrigeration device provided in one embodiment of the present application;

[0023] FIG14 is a schematic cross-sectional view of a portion of the structure of a refrigeration device provided in one embodiment of the present application;

[0024] FIG15 is a schematic structural diagram of a reinforcement member in another embodiment of the present application;

[0025] FIG16 is a schematic structural diagram of a door body and a drawer mechanism in another embodiment of the present application;

[0026] FIG17 is an enlarged structural diagram of point C in FIG16 , in which a protective cover is placed on one of the third folded portions;

[0027] FIG18 is a schematic diagram of the structure shown in FIG17 with the protective cover removed;

[0028] FIG19 is a partial cross-sectional view of FIG7 taken along direction BB;

[0029] FIG20 is a schematic cross-sectional view of a partial structure of a refrigeration device provided in another embodiment of the present application. DETAILED DESCRIPTION

[0030] The present application will be described in detail below with reference to the embodiments shown in the accompanying drawings. However, this embodiment does not limit the present application, and any changes in the mechanism, method, or function made by a person skilled in the art based on this embodiment are included in the scope of protection of this application.

[0031] Terms used herein to denote relative spatial positions, such as "upper," "lower," "left," "right," "front," and "back," are used for ease of explanation to describe the relationship of one feature relative to another, as shown in the accompanying drawings. It should be understood that, depending on the placement of the product, these terms may be intended to encompass orientations other than those depicted in the drawings and should not be construed as limitations on the claims. Furthermore, the descriptor "horizontal" as used herein does not necessarily mean perpendicular to gravity, although a certain degree of tilt is permitted.

[0032] As shown in Figures 1-7, an embodiment of the present application provides a refrigeration device 100, which includes a housing 110, a compartment 120 formed in the housing 110, a door 130 located at the front side of the compartment 120, and a pulling mechanism 140 connecting the door 130 and the housing 110. The pulling mechanism 140 connects the door 130 to the housing 110 in a pulling manner along the front-to-back direction, so that the user can open or close the compartment 120 by pulling the door 130. For the convenience of explanation, the pulling direction of the door 130 herein, i.e., the front-to-back direction, is the left-right direction when the refrigeration device 200 is in the state shown in Figure 2. The user pulls the door 130 forward to open the compartment 120, and pulls the door 130 backward to close the compartment 120. The height direction herein is the up-down direction when the refrigeration device 100 is in the state shown in Figure 2, and the width direction is the left-right direction when the refrigeration device 100 is in the state shown in Figure 3.

[0033] The drawer mechanism 140 specifically includes a slide rail (not shown) provided on the housing 110, a first bracket 1 that slides with the slide rail in the front-to-back direction, a second bracket 2 connected to the front side of the first bracket 1, and the door body 130 is rotatably connected to the second bracket 2. The drawer mechanism 140 also includes a limiting structure 3 provided between the second bracket 2 and the door body 130 to limit the rotation angle of the second bracket 2 relative to the door body 130. In this embodiment, two drawer mechanisms 140 are provided along the width direction, and at least two limiting structures 3 are provided in each drawer mechanism 140 along the width direction. In this article, the number of limiting structures 3 provided is two as an example.

[0034] When the door body 130 closes the compartment 120, due to the cooling of the refrigeration equipment 100, the temperature inside the compartment 120 will be lower than the temperature outside the compartment 120, which will cause the air pressure inside the compartment 120 to be lower than the air pressure outside the compartment 120, resulting in the door body 130 being difficult to open due to the pressure difference. In this embodiment, the door body 130 can rotate relative to the second bracket 2 when it is opened (the rotation axis is shown as the dotted line S in Figure 7). When the user opens the door, he pulls the door body 130 to rotate the door body 130 by a preset micro angle first, so that a gap connecting the inside and outside of the compartment 120 is generated between the door body 130 and the box body 110 from one side in the height direction, thereby balancing the air pressure inside and outside the compartment 120, making the door body 130 easy to open, and the rotatable angle of the door body 130 relative to the second bracket 2 is limited by the limiting structure 3.

[0035] Continuing with reference to Figures 8-10 , the retaining structure 3 includes a first retaining member 31 and an elastic assembly 32. The first retaining member 31 includes a first head 311 positioned at the rear side of the second bracket 2 and a first columnar portion 312 extending forward from the first head 311. The first columnar portion 312 extends forward through the second bracket 2 and connects to the door body 130. The diameter of the first head 311 is larger than that of the first columnar portion 312. The elastic assembly 32 is positioned between the first head 311 and the second bracket 2, with its front and rear sides respectively abutting the first head 311 and the second bracket 2. The elastic assembly 32 prevents the door body 130 from rotating relative to the second bracket 2 under normal conditions. When the user pulls the door body 130, the elastic force of the elastic assembly 32 is overcome, causing the door body 130 to rotate relative to the second bracket 2. When the door body 130 is withdrawn, the elastic assembly 32 also resets the position between the door body 130 and the second bracket 2. In this embodiment, a screw, a commonly used standard component, can be used as the first retaining member 31.

[0036] Specifically, the elastic assembly 32 includes a housing 321 and an elastic member 322 that is retractable in the front-to-back direction. The housing 321 includes a first sidewall 3211 located on the rear side of the second bracket 2, a first annular wall 3212 extending rearward from the first sidewall 3211, and a first columnar portion 312 extending through the first sidewall 3211. The elastic member 322 is located between the first head portion 311 and the first sidewall 3211, and its front-to-back sides respectively abut the first head portion 311 and the first sidewall 3211. The first sidewall 3211 of the housing 321 prevents the elastic member 322 from directly contacting the second bracket 2. The inner diameter of the first annular wall 3212 is larger than the diameter of the first head portion 311, and it can surround the first head portion 311 to limit the movement of the first head portion 311. The elastic member 322 can optionally be a compression spring and is mounted around the outer periphery of the first columnar portion 312. The housing 321 is preferably made of wear-resistant POM.

[0037] Furthermore, the limiting structure 3 also includes a first ring sleeve 33 that is sleeved on the outer periphery of the first columnar portion 312. The first ring sleeve 33 is made of a flexible material (such as rubber or silicone). The first ring sleeve 33 is arranged between the first side wall 3211 and the first head 311, and its size in the front-to-back direction is smaller than the distance between the first side wall 3211 and the first head 311 in the front-to-back direction, so that the first head 311 has a certain space for movement. When the door body 130 is rotated to a preset angle relative to the second bracket 2, the first head 311 will contact the first ring sleeve 33. The first ring sleeve 33 made of flexible material will reduce the impact from the first head 311, so that the user feels more comfortable when pulling the door body 130. It can be imagined that when the first head 311 contacts the first ring sleeve 33, the elastic member 322 is not compressed to the limit.

[0038] In this embodiment, the first sidewall 3211 and the second bracket 2 are respectively provided with a first through-hole 3213 and a second through-hole 21 for the first columnar portion 312 of the first retaining member 31 to pass through. The surface of the first retaining member 31 may be plated with zinc-nickel to enhance its wear and corrosion resistance. The retaining structure 3 may also include a first sheath 34 disposed around the first columnar portion 312 to prevent the plating from being scraped off due to friction between the first columnar portion 312, the first through-hole 3213, and the second through-hole 21. The first sheath 34 comprises a tubular sheath body 341 and an annular boss 342 formed on the outer circumference of the sheath body 341 at one end protruding from the door body 130. The annular boss 342 increases the contact area between the first sheath 34 and the door body 130. Alternatively, as shown in Figure 12, a gasket 35 may be disposed between the tubular first sheath 34 and the door body 130. The first sheath 34 and gasket 35 may be made of a wear-resistant zinc alloy.

[0039] In another embodiment of the present application, as shown in Figures 10-12, the pulling mechanism 140 can also be arranged as follows: at least two limiting structures 3 in a pulling mechanism 140 are arranged along the width direction, and the pulling mechanism 140 also includes a connecting part 4 connecting the shells 321 in at least two limiting structures 3, the connecting part 4 includes a second side wall 41 provided on the rear side of the first bracket 1, and a second annular wall 42 extending backward from the second side wall 41, the pulling mechanism 140 also includes a second limiting member 43 and a second ring sleeve 44 made of a flexible material (such as rubber or silicone), the second limiting member 43 includes a second head 431 located on the rear side of the second side wall 41, and a second columnar portion 432 extending forward from the second head 431, the second columnar portion 432 passes through the second side wall 41 and the second bracket 2 and is connected to the door body 130, the diameter of the second head 431 is larger than the diameter of the second columnar portion 432, and the second ring sleeve 44 is provided on the periphery of the second columnar portion 432 and is located between the second side wall 41 and the second head 431. The front-to-back dimension of the second collar 44 is smaller than the front-to-back distance between the second sidewall 41 and the second head 431, allowing for a certain amount of movement for the second head 431. In this embodiment, when the door body 130 rotates to a predetermined angle relative to the second bracket 2, the second head 431 contacts the second collar 44. The second collar 44, made of a flexible material, mitigates the impact from the second head 431, making it more comfortable for the user to pull the door body 130. As can be expected, when the second head 431 contacts the second collar 44, the elastic member 322 is not compressed to its limit.

[0040] As shown in Figures 9-10 and 12-13, the door body 130 includes a door lining 131 located at its rear side and a reinforcement member 5 located on the side of the door lining 131 facing away from the compartment 120. The reinforcement member 5 can be made of a metal material (such as stainless steel). The first columnar portion 312 passes through the door lining 131 and connects to the reinforcement member 5 to ensure connection strength. Specifically, the first columnar portion 312 is a threaded stud, and the reinforcement member 5 is provided with a threaded hole 51 that mates with the first columnar portion 312.

[0041] A positioning hole 53 may be provided on the reinforcement 5, and a positioning protrusion corresponding to the positioning hole 53 may be provided on the door lining 131. The positioning hole 53 and the positioning protrusion cooperate to limit the position of the reinforcement 5 relative to the door lining 131, and a fixing structure may also be provided between the reinforcement 5 and the door lining 131 to fix the two together.

[0042] As shown in Figure 12, the second columnar portion 432 in the above-mentioned other embodiment also passes through the door lining 131 and is connected to the reinforcement 5. Specifically, the second columnar portion 432 is a threaded stud, and the reinforcement 5 is connected to a screw hole column 52 corresponding to the second columnar portion 432, and the second columnar portion 432 is threadedly connected to the screw hole column 52. The second side wall 41 and the second bracket 2 are respectively provided with a third through hole and a fourth through hole for the second columnar portion 432 and the screw hole column 52 to pass through. The limiting structure 3 may also include a second sheath 45 that is sleeved on the outer periphery of the screw hole column 52 to prevent friction between the screw hole column 52 and the third through hole and the fourth through hole. The screw hole column 52 can be made of zinc alloy, and the second sheath 45 can be made of cold-rolled steel.

[0043] The door body 130 may also include a glass panel located on its front side, a frame and end covers arranged between the glass panel and the door lining 131. The frame extends in the height direction, and the end covers are arranged at the ends of the frame. In order to ensure the sealing effect between the door body 130 and the box body 110, the door body 130 also includes a door seal arranged around the door lining 131. The door seal is made of flexible materials such as rubber or silicone to fit tightly with the box body 110.

[0044] As shown in Figures 6 and 11-14, the second bracket 2 includes a bracket body 23, two first folded portions 24 formed by folding backward from both sides of the bracket body 23 in the width direction, and the door body 130 also includes a connector 6. The connector 6 is generally U-shaped and includes a connector body 61 disposed between the door lining 131 and the bracket body 23, and two second folded portions 62 formed by folding backward from both sides of the connector body 61 in the width direction. The connector body 61 is connected to the reinforcement 5. The refrigeration device 100 also includes a first fastener 7 that passes through the door body 130 to connect the connector body 61 and the reinforcement 5. The fastener 7 can be a bolt and is threadedly connected to the reinforcement 5. The two first folded portions 24 are respectively rotatably connected to the two second folded portions 62 to enable the door body 130 to rotate relative to the second bracket 2.

[0045] Specifically, the first folded portion 24 defines a first connection hole 241, and the second folded portion 62 defines a second connection hole 621 corresponding to the first connection hole 241. The refrigeration device 100 also includes a rotating shaft 8 that passes through the first and second connection holes 241, 621, to rotatably connect the first and second folded portions 24, 62. The second bracket 2 and connector 6 are preferably made of metal to ensure strength, and the surfaces are painted for aesthetics and rust resistance. To this end, the refrigeration device 100 also includes sleeves 81 disposed between the first and second connection holes 241 and the rotating shaft 8, respectively. The sleeves 81 prevent paint peeling and noise caused by friction between the first and second connection holes 621 and the rotating shaft 8. The rotating shaft 8 may be a rivet, secured between the first and second connection holes 241, 621. The first bracket 1 may be connected to one of the first folded portions 24 of the second bracket 2 via a fastener.

[0046] As shown in Figures 11 and 15-18, in another embodiment of the present application, it can also be arranged like this: the second bracket 2 includes a bracket body 23, two first folding parts 24 formed by folding backward from both sides of the width direction of the bracket body 23, the reinforcement 5 includes a reinforcement body 54, two third folding parts 55 formed by folding backward from both sides of the width direction of the reinforcement body 54, and the two third folding parts 55 are arranged to pass through the door lining 131 backward, the two first folding parts 24 are respectively rotatably connected to the parts of the two third folding parts 55 passing through the door lining 131 backward, the second bracket 2 and the reinforcement 5 can both be made of metal material. With this arrangement, the second bracket 2 can be firmly connected to the reinforcement 5 and the door body 130 can be rotated relative to it.

[0047] Specifically, a first connection hole 241 is defined in the first folded portion 24, and a third connection hole 551 corresponding to the first connection hole 241 is defined in the third folded portion 55. The refrigeration device 100 further includes a rotating shaft 8 that passes through the first and third connection holes 241, 551, to rotatably connect the first and third folded portions 24, 55. To prevent paint loss or noise from friction between the rotating shaft 8 and the third connection hole 551, the refrigeration device 100 further includes a protective cover 56 that is at least partially disposed between the third connection hole 551 and the rotating shaft 8. In this embodiment, the third connection hole 551 is generally U-shaped with an opening to facilitate insertion of the rotating shaft 8. The protective cover 56 completely covers the portion of the third folded portion 55 that extends rearward through the door lining 131. The protective cover 56 is preferably made of wear-resistant POM.

[0048] As shown in Figures 5 and 19, the refrigeration device 100 also includes a buffer adjustment assembly 9 disposed between the door body 130 and the second bracket 2. The buffer adjustment assembly 9 specifically includes a first buffer member 92 and a first adjustment member 91 connected to the second bracket 2. The first adjustment member 91 is adjustable in the front-to-back direction relative to the second bracket 2 and has a first insertion portion 911 extending between the door body 130 and the second bracket 2. The first buffer member 92 is connected to the first insertion portion 911 and has a first flexible portion 921 located on the side of the first insertion portion 911 near the door body 130. The first flexible portion 921 or the entire first buffer member 92 can be made of a flexible material such as silicone or rubber. When the door body 130 rotates relative to the second bracket 2 and then resets, the door body 130 contacts the first flexible portion 921 to reduce the impact force. In addition, the adjustment of the position of the first adjustment member 91 in the front-to-back direction can correspondingly adjust the angle of the door body 130 relative to the second bracket 2 when not pulled, so that the door body 130 remains in a suitable position under normal conditions. The first adjusting member 91 can be a screw, and the first adjusting member 91 is threadedly connected to the second bracket 2, and can be adjusted forward and backward relative to the second bracket 2 by threaded cooperation, and the first adjusting member 91 is provided with slots 912 on both end surfaces in the front and rear directions. The slots 912 can be roughly cross-shaped, straight-shaped or triangular. As long as the first adjusting member 91 can be rotated with tools such as a wrench or a screwdriver, the first adjusting member 91 can be screwed from the front and back by tools such as a wrench or a screwdriver, which facilitates the installation and subsequent adjustment of the first adjusting member 91.

[0049] As shown in FIG20 , in another embodiment of the present application, the buffer adjustment assembly 9 may be configured as follows: the buffer adjustment assembly 9 includes a second adjustment member 93 connected to the second bracket 2 and a second buffer member 94 connected to the door body 130. The second adjustment member 93 is adjustable relative to the second bracket 2 in the front-to-back direction and has a second protruding portion 931 extending between the door body 130 and the second bracket 2. The second buffer member 94 has a second flexible portion 941 correspondingly provided in front of the second protruding portion 931. The second flexible portion 941 or the entire second buffer member 94 may be made of a flexible material such as silicone or rubber. When the door body 130 rotates relative to the second bracket 2 and then returns to its original position, the second flexible portion 941 contacts the second protruding portion 931 to reduce the impact force exerted by the door body 130. Furthermore, the adjustment of the position of the first adjustment member 91 in the front-to-back direction can correspondingly adjust the angle of the door body 130 relative to the second bracket 2 when not being pulled, so that the door body 130 remains in a suitable position under normal conditions. The second adjusting member 93 can be a screw. In this way, the second adjusting member 93 is threadedly connected to the second bracket 2 and can be adjusted forward and backward relative to the second bracket 2 through threaded engagement.

[0050] As shown in Figures 1 and 7, to facilitate the user in pulling out the door body 130, the door body 130 further includes a handle portion 10 located on its upper side. In this embodiment, the handle portion 10 is a groove formed on the upper side of the door body 130. The door body 130 is divided into two parts of equal height by a horizontally extending midline H. The rotation axis S of the door body 130 is located below the midline, and the limiting structure 3 is located above the midline. In this way, when the user pulls the door body 130, the door body 130 is easier to rotate. In other embodiments, the handle portion 10 can also be located on the lower side of the door body 130. Accordingly, the rotation axis of the door body 130 should be located above the midline, and the limiting structure 3 should be located below the midline.

[0051] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0052] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A refrigeration device, comprising a box, a compartment formed in the box, a door located in front of the compartment, and a pull-out mechanism for connecting the door to the box in a front-to-rear direction, characterized in that: The pulling and drawing mechanism includes a slide rail arranged on the box body, a first bracket slidingly cooperated with the slide rail along the front-to-back direction, and a second bracket connected to the front side of the first bracket. The door body and the second bracket are rotatably connected so that a gap connecting the inside and outside of the room can be generated between the door body and the box body from one side in the height direction. The pulling and drawing mechanism also includes a limiting structure arranged between the door body and the second bracket for limiting the rotation angle of the door body relative to the second bracket.

2. The refrigeration equipment according to claim 1, characterized in that: The limiting structure includes a first limiting member and an elastic component, the first limiting member includes a first head portion arranged on the rear side of the second bracket, and a first columnar portion extending forward from the first head portion, the diameter of the first head portion is larger than the diameter of the first columnar portion, the first columnar portion passes through the second bracket and is connected to the door body, the elastic component is arranged between the first head portion and the second bracket and its front and rear sides respectively abut the first head portion and the second bracket.

3. The refrigeration equipment according to claim 2, characterized in that: The elastic component includes a shell and an elastic member that can be retracted in the front-to-back direction. The shell includes a first side wall arranged on the rear side of the second bracket, a first annular wall extending backward from the first side wall, the first columnar portion is arranged through the first side wall, and the elastic member is arranged between the first head and the first side wall, and its two sides in the front-to-back direction respectively abut against the first head and the first side wall.

4. The refrigeration equipment according to claim 3, characterized in that: The limiting structure also includes a first ring sleeve sleeved on the periphery of the first columnar portion. The first ring sleeve is made of a flexible material, and its dimension in the front-to-back direction is smaller than the distance between the first side wall and the first head in the front-to-back direction.

5. The refrigeration equipment according to claim 3, characterized in that: At least two limiting structures are arranged along the width direction, and the pulling mechanism also includes a connecting part connecting the shells in at least two limiting structures, the connecting part includes a second side wall arranged on the rear side of the first bracket and a second annular wall extending backward from the second side wall, the pulling mechanism also includes a second limiting member and a second ring sleeve made of flexible material, the second limiting member includes a second head located on the rear side of the second side wall, and a second columnar part extending forward from the second head, the second columnar part passes through the second side wall and the second bracket and is connected to the door body, the diameter of the second head is larger than the diameter of the second columnar part, the second ring sleeve is arranged on the periphery of the second columnar part, and its front-to-back direction size is smaller than the distance between the second side wall and the second head in the front-to-back direction.

6. The refrigeration device according to any one of claims 2 to 5, characterized in that: The door body comprises a door lining located at the rear side thereof, and a reinforcing member arranged on the side of the door lining away from the compartment, the reinforcing member is made of metal material, and the first columnar portion passes through the door lining and is connected with the reinforcing member.

7. The refrigeration device according to claim 6, characterized in that: The second bracket includes a bracket body, two first folding parts formed by folding backwards from both sides of the bracket body in the width direction, the door body also includes a connecting member, the connecting member includes a connecting member body arranged between the door lining and the bracket body, and two second folding parts formed by folding backwards from both sides of the connecting member body in the width direction, the two first folding parts are rotatably connected to the two second folding parts respectively, and the refrigeration equipment also includes a first fastener that passes through the door lining to connect the connecting member body and the reinforcement.

8. The refrigeration device according to claim 7, characterized in that: The first folding portion is provided with a first connecting hole, the second folding portion is provided with a second connecting hole corresponding to the first connecting hole, and the refrigeration device also includes a rotating shaft passing through the first connecting hole and the second connecting hole, and a sleeve arranged between the first connecting hole and the rotating shaft and between the second connecting hole and the rotating shaft.

9. The refrigeration device according to claim 6, characterized in that: The second bracket includes a bracket body and two first folded parts formed by folding backwards from both sides of the bracket body in the width direction; the reinforcement includes a reinforcement body and two third folded parts formed by folding backwards from both sides of the reinforcement body in the width direction, and the two third folded parts both pass backwards through the door lining, and the two first folded parts are respectively rotatably connected to the parts of the two third folded parts passing backwards through the door lining.

10. The refrigeration device according to claim 9, characterized in that: The first folding portion is provided with a first connecting hole, the third folding portion is provided with a third connecting hole corresponding to the first connecting hole, and the refrigeration device also includes a rotating shaft passing through the first connecting hole and the second connecting hole, and a protective cover at least partially provided between the third connecting hole and the rotating shaft.

11. The refrigeration device according to claim 1, characterized in that: The refrigeration equipment also includes a buffer adjustment component, which includes a first buffer member and a first adjustment member connected to the second bracket. The first adjustment member can be adjusted in the front-to-back direction relative to the second bracket and has a first extension portion extending between the door body and the second bracket. The first buffer member is connected to the first extension portion and has a first flexible portion located on the side of the first extension portion close to the door body.

12. The refrigeration device according to claim 1, characterized in that: The refrigeration equipment also includes a buffer adjustment component, which includes a second adjustment member connected to the second bracket and a second buffer member connected to the door body. The second adjustment member can be adjusted in the front and rear directions relative to the second bracket and has a second extension portion extending between the door body and the second bracket. The second buffer member has a second flexible portion corresponding to the front side of the second extension portion.

13. The refrigeration device according to claim 1, characterized in that: The door body also includes a handle portion located on its upper side. The door body is divided into two parts of equal height with a center line as a boundary. The rotation axis of the door body is located below the center line, and the limiting structure is located above the center line.

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