TWI663372B - Stops, insulated doors and refrigerators - Google Patents

Abstract

A refrigerator includes a heat-insulating box, a pivoting member, and a heat-insulating door. The heat-insulating box defines an opening and includes a side plate. The pivoting member includes a bearing seat and a pivot shaft. The supporting base includes a limiting portion. The heat-insulating door can be opened and closed to seal the opening and is pivoted on the pivoting member, and includes a door body and a stopper. The door main body has a bottom cover, and the bottom cover has a base wall, a mounting area located near the pivot of the base wall, and a through hole penetrating the top surface and the bottom surface of the base wall. The stopper is detachably installed in the installation area. The stopper has a bottom plate provided on the top surface of the base wall and having an area larger than the opening, and a bottom plate extending through the opening and protruding downward from the opening. The outside abutment structure, when the door body is opened adjacent to the side plate, presses against the limiting portion to restrict the door body from continuing to rotate toward the side plate.

Description

Stops, insulated doors and refrigerators

The invention relates to a stopper, in particular to a stopper that is integrally formed and has an improved structural strength. The present invention also relates to a heat insulation door and a refrigerator having the stopper.

For the refrigerators generally seen on the market, a stopper is provided below the refrigerator door, and its function is to cooperate with the limiting part of a pivot group. After the refrigerator door is opened, the refrigerator door can be restricted to only Pivot in an angle interval. When the opening angle of the refrigerator door reaches the limit of the angle interval, the stopper will stop the refrigerator door from rotating due to the limit of the pivot group. The nearest side walls of the refrigerator are also spaced apart by a certain distance, thereby solving the problem that the door of the refrigerator is opened too much in the past and hits the side wall of the refrigerator, so as to reduce damage to the door and the side wall of the refrigerator. However, although the setting of the stopper can prevent the refrigerator door from directly hitting the side wall of the refrigerator after it is opened, the stopper will inevitably cause structural damage to the stopper after long-term use, and it is easy to allow the The release of the fixing member causes the stopper to be released from the refrigerator door.

Therefore, it is an object of the present invention to provide a stopper that is not easily separated from the refrigerator door and greatly improves the fixing strength.

Therefore, the refrigerator of the present invention includes a heat-insulating box, a pivoting member, and a heat-insulating door. The heat-insulating box defines a storage room with an opening facing forward and communicating with the outside, and includes a side plate. The pivoting member includes a bearing seat disposed on the heat-insulating box and adjacent to the side plate, and a pivot shaft provided on the bearing seat. The supporting base includes a limiting portion farther from the side plate than the pivot axis. The heat-insulating door can be opened and closed to seal the opening and is pivoted to the pivoting member, and includes a door body and a stopper. The door main body has a bottom cover disposed on the bottom side of the door main body, and the bottom cover has a base wall pivoted on the pivot shaft, a mounting area located on the base wall adjacent to the pivot shaft, and a through hole. The top and bottom surfaces of the base wall pass through. The stopper is detachably installed in the installation area. The stopper has a bottom plate provided on the top surface of the base wall and having an area larger than the through hole, and a bottom plate extending through the through hole and directed to the through hole. An abutment structure protruding downward from the through opening, the abutment structure presses against the limiting portion when the door body is opened adjacent to the side plate and restricts the door body from continuing to rotate toward the side plate.

In some embodiments, the heat insulation door further includes a fixing member, the bottom cover further has a perforation formed on the base wall and corresponding to the installation area, and the bottom plate has a fixing hole corresponding to the perforation. The fixing member passes through the fixing hole along the perforation, so that the stopper is positioned in a longitudinal direction perpendicular to the base wall.

In some embodiments, the bottom cover further has a convex post extending upward from the top surface of the base wall adjacent to the mounting area and pivoted on the pivot, and the bottom plate defines a It is sleeved on the through hole of the convex column.

In some embodiments, the bottom cover further has a side wall extending upward from the top surface of the base wall, and the side wall is adjacent to the peripheral edge of the bottom plate, so that the stopper is in a direction parallel to the top surface of the base wall. Positioning.

In some embodiments, the bottom cover further has a hook wall extending upward and inward from the top edge of the side wall, and the stopper further has a hook extending upward from at least one side edge of the bottom plate and receiving the hook. An engaging structure with a wall pressed against it, the hook wall positions the stopper in the longitudinal direction.

In some embodiments, the bottom cover further has a support wall extending downward from the bottom surface of the base wall and abutting against the abutment structure, and the support wall assists in supporting the abutment structure.

In some embodiments, the bottom cover further has a protruding structure protruding upward from the top surface of the base wall at the installation area, and the bottom plate also has a positioning hole for the protruding structure to pass through. The raised structure is used for positioning the stopper in the installation area.

In some implementation forms, the door body defines an accommodating space, and the door body further has a heat-insulating structure that fills the accommodating space and presses against the top side of the stopper. The bottom cover collectively positions the stopper in the mounting area.

Therefore, the heat-insulating door of the present invention is suitable for opening and closing an opening of a heat-insulating box and pivoting a pivoting member provided on the heat-insulating box. The heat-insulating box includes a side plate, and the pivot The component includes a bearing seat adjacent to the side plate and a bearing seat disposed on the bearing seat. The bearing base includes a limiting portion farther from the side plate than the pivot axis, and the heat insulation door includes a door body and a stopper. The door main body includes a bottom cover disposed on a bottom side of the door main body, and the bottom cover has a base wall pivoted on the pivot shaft, a mounting area located on the base wall adjacent to the pivot shaft, and a through hole. The top and bottom surfaces of the base wall pass through. The stopper is detachably installed in the installation area. The stopper has a bottom plate provided on the top surface of the base wall and having an area larger than the through hole, and a bottom plate extending through the through hole and directed to the through hole. An abutment structure protruding downward from the through opening, the abutment structure presses against the limiting portion when the door body is opened adjacent to the side plate and restricts the door body from continuing to rotate toward the side plate.

Therefore, the stopper of the present invention is suitable for being provided on a heat-insulating door that can open and close an opening of a heat-insulating box and is pivoted on a pivoting member. The heat-insulating box includes a side plate. The pivoting member includes a bearing seat adjacent to the side plate and a pivot shaft provided on the bearing seat. The bearing seat has a limiting portion farther away from the side plate than the pivot shaft. The heat insulation door includes a bottom cover and the bottom cover. The base wall has a base wall pivoted on the pivot shaft, an installation area located on the base wall adjacent to the pivot shaft, and a through hole penetrating the top surface and the bottom surface of the base wall. The stopper includes a bottom plate and a Rely on structure. The bottom plate is disposed on the top surface of the base wall and has an area larger than the through hole. The abutment structure extends from the bottom plate to the through opening and protrudes downward from the through opening. The abutment structure presses against the limiting portion when the door body is opened adjacent to the side plate to restrict the door. The main body cannot continue to rotate toward the side plate.

The effect of the present invention is that by mounting an integrally formed stopper on the top surface of the base wall, the abutting structure of the stopper projects downward from the base wall, Not only the structural strength is greatly improved, but even when the fixing member fixing the stopper is loosened, the stopper can still be positioned on the base wall. In addition, the stopper is supported by the fixing member, the side wall, the protruding column, the protruding structure, the hook wall, the support wall, and the heat insulation structure to support the stopper, so that the stopper is pressed against the stopper. The limit part can still be positioned in a space coordinate. In addition, through the connection relationship of the stopper set on the convex column, even if the base wall is adjacent to the installation area, the stopper can be restrained by the convex column and maintain the limiting effect.

1‧‧‧ Insulated Box

11‧‧‧ roof

12‧‧‧ floor

13a, 13b‧‧‧Side panels

14‧‧‧ opening

15‧‧‧Storage room

416‧‧‧ sidewall

417‧‧‧ card hook wall

418‧‧‧ support wall

419‧‧‧ raised structure

421‧‧‧Long side edge

422‧‧‧short side edge

2‧‧‧ Pivot

21‧‧‧bearing seat

211‧‧‧bearing department

212‧‧‧Connection Department

213‧‧‧Limiting Department

22‧‧‧ Pivot

3‧‧‧ Insulated Door

4‧‧‧ door body

41‧‧‧Cover

411‧‧‧ base wall

412‧‧‧Installation area

413‧‧‧ wear mouth

414‧‧‧perforation

415‧‧‧ convex post

423‧‧‧Guide bevel

43‧‧‧Top cover

44‧‧‧side cover

45‧‧‧Insulation structure

46‧‧‧accommodation space

5‧‧‧stop

51‧‧‧ floor

511‧‧‧ fixing hole

512‧‧‧through hole

513‧‧‧ positioning hole

52‧‧‧Reliance structure

53‧‧‧ snap structure

6‧‧‧Fixed parts

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, wherein: FIG. 1 is an incomplete perspective exploded view of an embodiment of the refrigerator of the present invention; and FIG. 2 is a perspective view of the embodiment of the present invention. An incomplete perspective view illustrating the connection relationship between a bottom cover, a pivoting member, and a stopper of this embodiment; FIG. 3 is a perspective view of the embodiment, illustrating the structure of the pivoting member of the embodiment Figure 4 is a perspective view of the embodiment, illustrating the structure of the bottom cover of the embodiment; Figure 5 is a plan view of Figure 4; Figure 6 is a bottom view of Figure 4; Figure 7 is a perspective view of this embodiment Describe the structure of a stopper in this embodiment; FIG. 8 is an incomplete top view of this embodiment, illustrating the state in which the stopper is installed on the bottom cover of this embodiment; FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 8 and illustrates the corresponding positions of the stopper and the bottom cover of the embodiment; and FIG. 10 is a bottom view of the embodiment, illustrating the stopper of the embodiment The stopper pivots around a pivot axis.

Referring to FIG. 1 and FIG. 2, an embodiment of a refrigerator according to the present invention includes an insulated box body 1, a pivoting member 2, an insulated door 3, and an air-conditioning unit (not shown). In this embodiment, the refrigerator position is taken as an example in a space coordinate. The space coordinate has an X direction, a Y direction perpendicular to the X direction, and a Z direction perpendicular to the X direction and the Y direction. The heat-insulating box 1 is, for example, a rectangular box whose height extends in the Z direction. The air-conditioning unit includes a refrigerant storage device, a compressor, a cold-air conveying pipeline, a fan, a power supply device and the like, which are not shown in the figure. Since the air-conditioning unit is not an important feature of this case, only the heat-insulating box 1, the pivoting member 2 and the heat-insulating door 3 will be described in detail below.

Referring to FIG. 1, in this embodiment, the heat-insulating box 1 includes a top plate 11 located above, a bottom plate 12 located below, and two side plates located on the left and right sides, which respectively connect the top plate 11 and the bottom plate 12. 13a, 13b, and a back plate (not shown) located on the rear side and connected to the top plate 11, the bottom plate 12, and the side plates 13a, 13b. The top plate 11, the bottom plate 12, the side plates 13a, 13b and the back plate together define a storage room 15 with an opening 14 facing forward and communicating with the outside. The heat-insulating box takes a storage room as an example. Allows a user to store items in it for low temperature storage. In order to facilitate the following description, the heat insulation box 1 is described by being located in a storage room 15 with a heat insulation door 3, but the number of the storage rooms 15 and the number of the heat insulation doors 3 included in the heat insulation box 1 are not based on one. In addition, the method for opening the heat insulation door 3 is described by taking the position on the left side in FIG. 1 to open and pivoting counterclockwise in the direction of the right side plate 13b as an example.

Referring to FIGS. 1 to 3, the pivoting member 2 includes a supporting base 21 disposed on the heat-insulating box 1 and adjacent to the side plate 13 b, and a supporting base 21 disposed on the top surface of the supporting base 21 and extending upright in the Z direction. Pivot 22 (see Figure 3). In this embodiment, the supporting base 21 has a supporting portion 211 adjacent to the side plate 13b and provided for the pivot 22, and a supporting portion 211 extends toward the bottom side of the heat insulation box 1 and is fixed to the bottom plate 12. The connecting portion 212 on the bottom surface and a limiting portion 213 that is farther away from the side plate 13b than the pivot shaft 22. The limiting portion 213 is used to restrict the thermal insulation door 3 from pivoting within an angular interval (for example, 0 to 180 degrees, the thermal insulation door is 0 degrees when the opening is sealed), and the thermal insulation door 3 is pivoted to the angular interval. When the maximum limit (for example: 180 degrees) is reached, the heat insulation door 3 cannot continue to rotate against the limit portion 213, thereby avoiding the problem that the heat insulation door 3 and the side plate 13b are damaged due to impact.

Referring to FIG. 1 and FIG. 2, the heat-insulating door 3 can be opened and closed to seal the opening 14 and is pivoted to the pivoting member 2. The heat insulation door 3 includes a door body 4, a stopper 5 and a fixing member 6.

Referring to FIG. 1, the door main body 4 includes a door body 4 disposed on a bottom side of the door main body 4. A bottom cover 41, a top cover 43 provided on the top side of the door main body 4, a side cover 44 connecting the bottom cover 41 and the top cover 43, a connection to the bottom cover 41, the top cover 43, and the side cover 44 and A storage cover (not shown) facing the storage room 15, a heat-insulating structure 45, and a leak-proof structure provided at the joint of the bottom cover 41, the top cover 43, the side cover 44, and the storage cover ( (Not shown). The bottom cover 41, the top cover 43, the side cover 44 and the storage cover together define an accommodating space 46. The heat insulation structure 45 is, for example, a polyurethane foam having a lower thermal conductivity than other structures of the door body 4, but The thermal insulation structure 45 is not limited to the polyurethane foam. The heat-insulating structure 45 fills the accommodation space 46 and presses against the top side of the stopper 5, cooperates with the bottom cover 41 to position the stopper 5, and presses the stopper 5 against the limit. In the position portion 213, the stopper 5 cannot be easily displaced in the X direction, the Y direction, and the Z direction. The leak-proof structure is an example of a leak-proof rubber strip, which is used to prevent the cold air in the storage room from leaking out.

Referring to FIG. 1, FIG. 4 to FIG. 6, FIG. 5 is a top view, and FIG. 6 is a bottom view. To further explain, the bottom cover 41 has a base wall 411 pivoted on the pivot shaft 22 (see FIG. 3). A mounting area 412 located on the base wall 411 adjacent to the pivot 22, a through hole 413 (see FIG. 5) penetrating the top and bottom surfaces of the base wall 411, and a position formed on the base wall 411 and corresponding to the installation The perforation 414 in the region 412, a protruding post 415 extending upward from the top surface of the base wall 411 adjacent to the mounting region 412 and pivoted on the pivot 22, and a plurality of side walls 416 formed by the top surface of the base wall 411 extending upward. Two hook walls 417 extending upward and inward from the top edges of the two opposite sides of the side wall 416, one supporting wall 418 extending downward from the bottom surface of the base wall 411 and abutting against the stopper 5, and one The top surface of the base wall 411 is located in Cao An A protruding structure 419 protruding upward at the mounting area 412. In this embodiment, the base wall 411 has two long side edges 421 (see FIG. 1) extending along the X direction, and two short side edges 422 (see FIG. 1) extending along the Y direction. The pivot shaft 22 passes through the base wall 411 at the short side edge 422 adjacent to the side plate 13 b, and the position of the mounting area 412 is adjacent to the pivot shaft 22.

On the other hand, the through opening 413 is adjacent to a side edge of the mounting area 412 and extends in the X direction, so that the stopper 5 can pass through the accommodation space 46 downwardly and extend beyond the base wall 411. In yet another aspect, the perforation 414 allows the fixing member 6 to penetrate and extend, and enables the fixing member 6 to lock the stopper 5 (see FIG. 1), so that the stopper 5 can be positioned in the mounting area 412. In another aspect, the protrusion 415 is sleeved on the pivot shaft 22, so that the door body 4 can be pivoted around the pivot shaft 22, and the stopper 5 is sleeved and the stopper 5 is at Positioned in the X and Y directions, and in this embodiment, the side walls 416 are exemplified as a surrounding wall surrounding the periphery of the mounting area 412, for the side wall 416 when the stopper 5 is pressed against the limiting portion 213. The stopper 5 can be positioned in the X and Y directions without shifting, and the stopper can be positioned in the Z direction in cooperation with the hook wall 417. However, the implementation of the side wall 416 is not based on the surrounding wall. The form is limited, and a structure for limiting the stopper 5 may be formed on only one side or several sides. On the other hand, the support wall 418 can absorb a part of the impact force when the stopper 5 collides with the pivoting member 2 to improve the overall structural strength, so that the stopper 5 is not easily damaged and deformed. On the other hand, the convex structure 419 is formed with an upper narrow lower width guide slope 423 adjacent to the top edge for guiding the stopper 5 to be positioned downward in the mounting area 412, and the convex structure 419 also enables The stopper 5 is positioned in the X and Y directions.

Referring to FIG. 2, FIG. 5 to FIG. 8, the stopper 5 is detachably installed in the installation area 412. The stopper 5 has a top surface of the base wall 411 and an area larger than the through opening 413. Base plate 51, an abutment structure 52 extending from the base plate 51 through the through hole 413 and protruding downward from the through hole 413, and two extending upwardly from two side edges of the base plate 51 and receiving the cards The hook structure 417 is pressed against the engaging structure 53. In this embodiment, the stopper 5 is integrally formed. By reducing welding or structural assembly, the overall structural strength of the stopper 5 can be improved, and in a preferred embodiment, the stopper 5 5 A metal material with a higher hardness than a plastic material can be used, such as iron, stainless steel, etc., so that the stopper 5 can reduce the damage of the stopper 5 when it is pressed against the limiting portion 213 (see FIG. 2). The peripheral edge of the bottom plate 51 abuts against the side wall 416, and because the bottom plate 51 is placed on the top surface of the base wall 411 and has an area larger than the area of the through hole 413, the bottom plate 51 can be supported by the base wall 411 without falling downward.该 底盖 41。 The bottom cover 41. In addition, since the width of the abutment structure 52 is substantially equal to the width of the through hole 413, the abutment structure 52 is supported by the base wall 411 structure around the through hole 413, and the abutment structure 52 projects downward. A portion outside the base wall 411 further surrounds the abutment structure 52 away from a side edge of the pivot shaft 22 by the support wall 418 and increases the contact area with the abutment structure 52 so that the abutment structure 52 When pressed against the limiting portion 213, the force is evenly distributed to the supporting wall 418. On the other hand, the top edges of the engaging structures 53 abut against the bottom edges of the hook wall 417, respectively. Therefore, when the abutting structures 52 are pressed against the limiting portion 213, each of the engaging structures 53 The stopper 5 is positioned in the Z direction by being blocked by each of the hook walls 417.

In particular, the bottom plate 51 has a fixing hole 511 corresponding to the through hole 414, a set of through holes 512 provided in the protruding post 415, and a set of positioning holes 513 provided in the raised structure 419. In this embodiment, the position of the fixing hole 511 is adjacent to the center of the bottom plate 51, so that when the stopper 5 is locked by the fixing member 6, the fixing member 6 can evenly lift the overall structure of the stopper 5 strength. In addition, in a preferred embodiment, referring to FIG. 9, the diameter of the through hole 512 is equivalent to the outer diameter of the convex column 415, and the diameter of the positioning hole 513 is equivalent to the outer diameter of the convex structure 419. As a result, the stopper 5 can be supported by the convex post 415 and the convex structure 419 and positioned in the X and Y directions. In addition, the through hole 512 and the positioning hole 513 are located on the left and right sides of the fixing hole 511. More specifically, the through hole 512 is located on the fixing hole 511 and the side wall adjacent to the short side edge 422. At the middle position of 416, the positioning hole 513 is located at the middle position of the fixing hole 511 and the side wall 416 away from the short side edge 422, so that when the through hole 512 is set on the protruding column 415, the positioning hole 513 is set at the same time When provided on the convex structure 419, the left and right side edges of the bottom plate 51 can be positioned in the X and Y directions by the convex columns 415 and the convex structure 419. In particular, the through hole 512 is sleeved on the protruding column 415. Since the height of the protruding column 415 is much higher than the protruding structure 419, even if the base wall 411 is damaged, the area of the through hole 413 is larger than that of the bottom plate 51. The stopper 5 is still restrained by the protruding post 415 and cannot easily disengage from the pivot shaft 22, and maintains the effect of limiting the pivoting angle by the limiting portion 213. However, the positions of the fixing hole 511, the through hole 512, and the positioning hole 513 are not limited to the above-mentioned intermediate positions.

Referring to FIG. 9, in this embodiment, the fixing member 6 is an example of a screw. The fixing member 6 is screwed to the fixing hole 511 along the perforation 414 from the bottom side of the bottom cover 41, so that the stopper 5 is in a longitudinal direction perpendicular to the base wall 411 (the longitudinal direction is exemplified in this embodiment as Z direction), and in a plane direction parallel to the top surface of the base wall 411 (the plane direction is exemplified as the X and Y directions in this embodiment). However, the number of the fixing members 6 is not limited to one. In another embodiment, the number of the fixing members 6 may also be multiple, and are respectively locked to the bottom plate 51 adjacent to the pivot shaft 22 and away from the pivot shaft. The side wall 416 of 22 can also achieve positioning of the stopper 5 in the Z direction. In addition, the fixing member 6 is not limited to a locking manner, and the fixing member 6 may also be a fastener penetrating through the through hole 414 and the fixing hole 511 and locked on the bottom plate 51.

Referring to FIG. 2 and FIG. 10, wherein FIG. 10 is a bottom view, the abutment structure 52 is used to press against the limit when the door body 4 is opened by the user in the direction of the clockwise arrow in FIG. 10 adjacent to the side plate 13 b. The position portion 213 restricts the door body 4 from continuing to rotate toward the side plate 13b. And when the abutting structure 52 is pressed against the limiting portion 213, the fixing member 6, the side wall 416, the protruding column 415, and the protruding structure 419 collectively position the stopper 5 in the X and Y directions. At the same time, the fixing member 6, the hook wall 417, and the heat-insulating structure 45 (see FIG. 1) collectively position the stopper 5 in the Z direction, thereby improving the support of the stopper 5 in space coordinates. The strength is firmly positioned in the mounting area 412. With respect to the supporting effect of the abutting structure 52 protruding outward, the abutting effect of the supporting wall 418 avoids the problem of deformation or fracture caused by a strong impact.

In summary, in the refrigerator of the present invention, the integrally formed stopper 5A It is mounted on the top surface of the base wall 411, so that the abutment structure 52 of the stopper 5 projects downward from the base wall 411, not only the structural strength is greatly improved, but also when the fixing member of the stopper 5 is fixed 6 Even if the stopper 5 is released, the stopper 5 can still be positioned on the base wall 411. In addition, the stopper 5 is supported by the fixing member 6, the side wall 416, the protruding column 415, the protruding structure 419, the hook wall 417, the supporting wall 418, and the heat-insulating structure 45 to help support the stopper 5. The stopper 5 can still be positioned in the X, Y, and Z directions when pressed against the limiting portion 213. In addition, through the connection relationship of the stopper 5 set on the protruding column 415, even if the base wall 411 is adjacent to the installation area 412, the stopper 5 can be restrained and maintained by the protruding column 415. Limiting effect, so it can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

Claims (10)

A refrigerator includes: a heat-insulating box defining a storage room with an opening facing forward and communicating with the outside. The heat-insulating box includes a side plate; a pivoting member includes a heat-insulating box disposed adjacent to the heat-insulating box. The bearing seat of the side plate and a pivot provided on the bearing seat, the bearing seat includes a limiting portion farther from the side plate than the pivot; and a heat-insulating door that can be opened and closed to seal the opening and is pivoted on the bearing. The pivoting part includes a door body having a bottom cover disposed on the bottom side of the door body, and the bottom cover has a base wall pivoted on the pivot shaft, and a mounting located on the base wall adjacent to the pivot shaft. Area, and a through hole that runs through the top and bottom surfaces of the base wall; a stopper is detachably installed in the installation area, and the stopper has a top surface on the base wall and the area is larger than the The bottom plate of the through hole, and an abutment structure that extends through the through hole and protrudes downward from the through hole, and the abutment structure is pressed against the door body when the door body is opened adjacent to the side plate. The limiting part restricts the door body from being able to continue to rotate toward the side plate. The refrigerator according to claim 1, wherein the heat insulation door further comprises a fixing member, the bottom cover further has a perforation formed on the base wall and corresponding to the installation area, and the bottom plate has a position corresponding to the perforation. The fixing member is inserted into the fixing hole along the perforation, so that the stopper is positioned in a longitudinal direction perpendicular to the base wall. The refrigerator according to claim 1, wherein the bottom cover further has a convex post extending upward from the top surface of the base wall adjacent to the installation area and pivoted on the pivot, and the bottom plate defines a set of A through hole of the convex post. The refrigerator according to claim 1, wherein the bottom cover further has a side wall extending upward from the top surface of the base wall, and the side wall is adjacent to the peripheral edge of the bottom plate, so that the stopper is parallel to the base wall. Position in the direction of the top surface. The refrigerator according to claim 4, wherein the bottom cover further has a hook wall extending upwardly and inwardly from the top edge of the side wall, and the stopper further has an upwardly extending from at least one side edge of the bottom plate and An engaging structure pressed by the hook wall, the hook wall positions the stopper in the longitudinal direction. The refrigerator according to claim 1, wherein the bottom cover further has a support wall extending downward from the bottom surface of the base wall and abutting against the abutment structure, and the support wall assists in supporting the abutment structure. The refrigerator according to claim 1, wherein the bottom cover further has a protruding structure protruding upward from the top surface of the base wall at the installation area, and the bottom plate further has a protruding structure for the protruding structure to pass through. A positioning hole, the raised structure is used for positioning the stopper in the installation area. The refrigerator according to claim 1, wherein the door body defines an accommodating space, and the door body further has a heat-insulating structure filled in the accommodating space and pressing against the top side of the stopper, the The thermal insulation structure and the bottom cover together position the stopper in the installation area. A heat insulation door is suitable for opening and closing an opening of a heat insulation box and pivoting a pivot member provided on the heat insulation box. The heat insulation box includes a side plate, and the pivot member includes A load-bearing base adjacent to the side plate and a pivot provided on the load-bearing base, the load-bearing base includes a limiting portion farther from the side plate than the pivot, and the heat-insulating door includes a door body including a door body A bottom cover on the bottom side, and the bottom cover has a base wall pivoted on the pivot, an installation area located on the base wall adjacent to the pivot, and a penetrating through the top and bottom surfaces of the base wall And a stopper detachably installed in the installation area, the stopper has a bottom plate provided on the top surface of the base wall and having an area larger than the through hole, and a bottom plate extending through the bottom plate. An abutment structure that passes through and protrudes downward from the through opening, the abutment structure presses against the limiting portion when the door body is opened adjacent to the side plate and restricts the door body from continuing to rotate toward the side plate . A stopper is suitable for being disposed on a heat-insulating door, which can be opened and closed to seal an opening of a heat-insulating box and is pivoted on a pivoting member. The heat-insulating box includes a side plate and the pivot The piece includes a bearing seat adjacent to the side plate and a pivot provided on the bearing seat. The bearing seat has a limiting portion farther from the side plate than the pivot. The heat insulation door includes a bottom cover, and the bottom cover has a The base wall is pivoted on the pivot, an installation area located on the base wall adjacent to the pivot, and a through hole penetrating the top surface and the bottom surface of the base wall. The stopper includes a bottom plate provided on the base wall. The top surface of the base wall has an area larger than the through opening; and an abutment structure, the bottom plate penetrates through the through opening and protrudes downward from the through opening, and the abutting structure is opened on the door body When the side plate is adjacent to the side plate, it is pressed against the limiting portion to restrict the door body from being able to continue to rotate toward the side plate.