TWI637137B - Freezer cabinet door frame assembly structure and corner joint - Google Patents

Abstract

A freezer door frame assembly structure and a corner joint thereof, comprising a corner joint and a pair of door frames. The corner joint comprises a pair of ㄇ type joints and a pair of bent bodies, each of the 接 type joints is provided with at least one through hole, and each of the bent bodies is provided with a first cocking portion at the joint. Each of the door frames includes an engaging groove and an abutting portion, and each of the engaging grooves is formed with a set of openings, and each of the connecting bodies and each of the bent bodies are passed through one of each of the frames a socket is provided to each of the engaging grooves, each of the abutting portions abutting above the top of each of the bending bodies, and each of the connecting bodies is located at each of the abutting portions and each of the engaging grooves Between the side faces, each of the 接-shaped joints and each of the engaging grooves are formed with a spacing between one side of each of the abutting portions, and each of the door frames can be continued to the joint direction when locked Pulling does not create a gap on the outside of the joint of the two door frames, thereby preventing external water droplets from flowing to the inside and achieving aesthetics.

Description

Freezer cabinet door frame assembly structure and corner joint

The invention relates to a freezer cabinet door frame assembly structure and a corner joint thereof, in particular to a freezer cabinet door frame assembly structure and a corner joint thereof which make two door frames at the corners meet at the outside of the joint without causing a gap.

Please refer to FIG. 1-1 to FIG. 3 for a conventional freezer door frame assembly structure 1, which includes a corner joint 2 and a pair of door frames 3. The corner joint 2 includes a pair of cymbals 20, And a pair of bent bodies 21 respectively extending outward and bent at one end downwardly and connected below the outside of each of the cymbal joints 20.

One end of the cymbal 20 is vertically connected to one end of the other cymbal 20, and the top of each cymbal 20 is straight and flat, and each of the cymbals 20 includes at least one A through-hole 200 and a groove 201 opened on the other side and communicating with the through-hole 200 are provided. Each of the grooves 201 communicates with each other and is provided with a collecting portion 202 at a joint.

One end of one of the bent bodies 21 is vertically connected to one end of the other bent body 21, and each of the bent bodies 21 is straight and flat. Each of the door frames 3 includes an engaging groove 30. The bottom side of each of the engaging grooves 30 is open and a set of openings 31 are formed at both ends of each of the engaging grooves 30.

In practice, the staff first sets each of the knuckle joints 20 and each of the bent bodies 21 into each of the joint grooves 30 through one of the set openings 31 of each of the door frames 3, and each The top surface of the cymbal-shaped body 20 abuts the middle-side crossbar 32 of each of the engaging grooves 30, and each of the grooves 201 faces outward. Thereafter, a plurality of screws are respectively passed from each of the grooves 201 to each of the engaging grooves 30. Extend each of the penetration holes 200 and thread holes at the corresponding positions of each of the cross bars 32, so that each of the screws is screwed to each of the screw holes, and each door frame 3 and the corner joint 2 are connected and fixed. . Thereafter, the wires electrically connected to the electrical components on the freezer are collected in the groove 201 and lean on the collection portion 202.

When each of the screws squeezes and tightens each of the cymbal joints 20, the two sides at the corners are respectively extended toward the direction of each screw lock, causing the joints of the pair of cymbal joints 20 to shift. A gap is created outside the joint 33 of the pair of door frames 3, thereby not only affecting the look and feel, but also allowing the external water to flow into the interior through the gap of the joint 33, so it is necessary to improve it.

An object of the present invention is to provide a freezer cabinet door frame assembly structure and a corner joint, which are provided with a first raised portion at the joint of each bent body, each door frame is provided with an engagement groove and an abutment portion, each The bent body abuts the abutting portion so that a first raised portion is used to form a gap between the top of each knuckle-shaped body and a side of each engaging groove provided with each abutting portion, which can be used during locking. Each of the door frames on both sides is continuously pulled toward the joint so that there is no gap outside the joint of the two door frames, thereby preventing external water droplets from flowing into the interior and achieving aesthetics.

According to the above purpose, the present invention proposes a freezer cabinet door frame assembly structure, which includes a corner joint and a pair of door frames. The corner joint includes a pair of cymbals, and a pair of bends extending outward and bent at one end and connected below the outside of each of the cymbals, one of the ends of the cymbals One end of one of the bent bodies is vertically connected to one end of the other bent body, and one of the bent bodies is vertically connected to one end of the other bent body, and each of the The bent body is provided with a first raised portion at the joint.

Each of the door frames includes an engaging groove, and an abutting portion received in the engaging groove and connected to a middle side of the engaging groove. Wherein, the bottom side of each of the engaging grooves is open and a set of openings are formed at both ends of each of the engaging grooves, each of the abutting portions protrudes toward the opening direction of the bottom side, and each of the The shaped joint body and each of the bent bodies are sleeved into each of the joint grooves through one set of openings of each of the door frames, each of the abutting portions abuts above the top of each of the bent bodies, Each of the cymbal joints is located between each of the abutting parts and each side of each of the engaging grooves, and a top of each of the cymbal joints and each of the engaging grooves is provided with one of each of the abutting parts. A gap is formed between the sides.

Further, the angle of each of the first raised portions is 0.5 ° ~ 2 °.

Further, a second raised portion, a flattened portion, and the first raised portion are sequentially arranged from the outer end to the joint of the outer side of each of the bent bodies.

Further, the angle of each of the second raised portions is 0.5 ° ~ 2 °.

Further, the top of each of the cymbals is gradually inclined from the outer end to the joint.

Further, the distance between the top of each of the knuckle joints and the top of each of the bent bodies is gradually decreased from 3.4 mm to 2.8 mm.

Further, the top of each of the cymbals is inclined inwardly and downwardly near the joint, so that the top of each of the cymbals has a first slope section on the outside and a second slope section on the inside. And each of the second slope sections includes at least one of the penetration holes.

Further, the inward downward slope angle of each of the second slope sections is set to 0.5 ° ~ 2 °.

Furthermore, the present invention proposes a freezer door frame corner joint applied to the freezer door frame assembly structure. The freezer door frame corner joint includes a corner joint, and the corner joint includes a pair of cymbals and a pair of outwardly extending joints. A bent body connected downward below the outside of each of the cymbals is bent at one end downward, one end of one of the cymbals is vertically connected to one end of the other cymbals and each of the cymbals The body is provided with at least one penetration hole, one end of one of the bent bodies is vertically connected to one end of the other bent body, and each of the bent bodies is provided with a first raised portion at the joint.

Further, the angle of each of the first raised portions is 0.5 ° ~ 2 °.

Further, a second raised portion, a flattened portion, and the first raised portion are sequentially arranged from the outer end to the joint of the outer side of each bent body.

Further, the angle of each of the second raised portions is 0.5 ° ~ 2 °.

Further, the top of each of the cymbals is gradually inclined from the outer end to the joint.

Further, the distance between the top of each of the knuckle joints and the top of each of the bent bodies is gradually decreased from 3.4 mm to 2.8 mm.

Further, the top of each of the cymbals is inclined inwardly and downwardly near the joint, so that the top of each of the cymbals has a first slope section on the outside and a second slope section on the inside. And each of the second slope sections includes at least one of the penetration holes.

Further, the inward downward slope angle of each of the second slope sections is set to 0.5 ° ~ 2 °.

The invention is characterized by:

1. When each abutting portion abuts on the top of each bent body, each top portion of each cymbal-shaped body and each of the engaging grooves are provided with each of the first raised portions The distance is formed between one side of the abutting portion. When a plurality of screws penetrate each of the through holes from the other side to the direction of each of the joint grooves, the material of each door frame corresponding to each of the screws will move in the direction of each joint. Each of these gaps gradually narrows, and at this time, the end of each door frame near the joint will move toward the joint, so that there will be no gap on the outside of the joint where the two door frames meet to prevent external water droplets from flowing. Internal and aesthetically pleasing.

2. The second raised portion, the flattened portion, and the first raised portion are sequentially provided from the outer end to the joint of the outer side of each of the bent bodies. The original distance of each of the gaps is changed from small to larger, so that the distance between each of the cymbal joints and each of the joint grooves provided with each of the abutting portions becomes larger, which represents each of the door frames. More material corresponding to each of the screws will move in the direction of each of the cymbal joints, and it will not cause a gap outside the joint where the two door frames meet.

3. Further, by setting the top of each of the cymbals to be inclined from the outer end to the joint, each of the cymbals and each of the engaging grooves are provided with each of the abutments. The distance between the sides of the part is from small to large. When the screws are fastened, the distance between each side of each ㄇ -shaped connector and each of the joint grooves is provided at each of the abutting portions, which means that each door frame corresponds to each A lot of material at the screw will move toward each of the joints. At this time, the end of each door frame near the joint will move more toward the joint and will not let the two door frames meet. A gap is created outside the joint.

4. Since the inside of the joint is more difficult to handle, this case further sets the first slope section and the second slope section on the top of each of the cymbals, so that the inside of each of the cymbals and each joint The groove is provided with a large space formed between each side of the abutting portion. And each of the second slope sections contains at least one of the through holes. When the screws are locked, the material corresponding to each of the door frames corresponding to each of the screws will move in the direction of each of the cymbals and let each of the The interval gradually narrows. Because each of the second slope sections and each of the engaging grooves are provided with a large space of the interval between each side of the abutting portion, each door frame corresponds to each of the screws. More material is moved in the direction of each joint. At this time, the end of each door frame near the joint will move more toward the inside of the joint, and there will be no gap inside the joint where the two door frames meet. .

[Learning]

1‧‧‧Freezer door frame assembly structure

2‧‧‧ corner joint

20‧‧‧ 接 type adapter

200‧‧‧ penetration hole

201‧‧‧ Trench

202‧‧‧Collection Department

21‧‧‧ Bend body

3‧‧‧ Door Frame

30‧‧‧Slot

31‧‧‧set mouth

32‧‧‧Horizontal

33‧‧‧ Junction

〔this invention〕

4‧‧‧Freezer cabinet frame assembly structure

5‧‧‧ corner joint

6‧‧‧ ㄇ type adapter

60‧‧‧ through hole

61‧‧‧Groove

62‧‧‧Collection Department

63‧‧‧outer end

64‧‧‧Top

640‧‧‧first slope

641‧‧‧second slope

7‧‧‧ Bend body

70‧‧‧First uplift

71‧‧‧Flattening Department

72‧‧‧ second uplift

73‧‧‧ outer end

8‧‧‧ Door Frame

80‧‧‧Joint groove

81‧‧‧Abutting Department

82‧‧‧set mouth

83‧‧‧Horizontal

84‧‧‧ pitch

85‧‧‧ screw hole

86‧‧‧Interchange

87‧‧‧ interval

9‧‧‧ Screw

, , ‧‧‧angle

H ₁ , H ₂ ‧‧‧ height

Figure 1-1: A perspective view of a corner joint in a conventional freezer cabinet frame assembly structure.

Figure 1-2: A cross-sectional view of Figure 1-1 at the A-A position.

Figure 2: A perspective exploded view of a corner joint and a door frame in a conventional freezer cabinet door frame assembly structure.

Figure 3: A sectional view of a combination of a corner joint and a door frame in a conventional freezer cabinet door frame assembly structure.

Figure 4-1: A perspective view of a corner joint in an assembly structure of a freezer door frame according to the present invention.

Figure 4-2: A cross-sectional view of Figure 4-1 at the B-B position.

Figure 4-3: A partial enlarged view of Figure 4-2 at position C.

Figure 4-4: A partial enlarged view of Figure 4-2 at the D position.

FIG. 5 is an exploded perspective view of the corner joint and the door frame in the freezer door frame assembly structure of the present invention.

Fig. 6-1 is a perspective combination view of the corner joint and the door frame in the freezer door frame assembly structure of the present invention.

Figure 6-2: Schematic cross-sectional view of the assembly of screws and screws at position E-E in Figure 6-1 (1).

Fig. 6-3: Schematic cross-sectional view of the assembly of the screws and screws at E-E position (Fig. 6-1) (2).

FIG. 7-1 is a perspective combined view of a corner joint and a door frame in the freezer door frame assembly structure of the present invention.

Fig. 7-2: A sectional view of the assembly of the screws and F-F positions in Fig. 7-1.

Fig. 7-3: A schematic cross-sectional view of the assembly of the screws and screws at G-G position (Fig. 7-1) (1).

Fig. 7-4: A schematic cross-sectional view of the assembly of the screws and screws at the G-G position in Fig. 7-1 (2).

The following is a detailed description of how the structures of the present invention are combined and used in conjunction with the accompanying drawings. It should be easier to understand the purpose, technical content, features and effects achieved by the present invention.

Please refer to FIG. 4-1 to FIG. 5 and FIG. 6-2, which show a freezer door frame assembly structure 4 according to the present invention, which includes a corner joint 5 and a pair of softer materials than the corner joint 5. Door frame 8. The corner joint 5 includes a pair of cymbal joints 6 and a pair of benders 7 extending outwardly and bent at one end downwardly and connected to the outside of each of the cymbal joints 6.

One of the cymbals 6 is vertically connected to one end of the other cymbals 6, and each of the cymbals 6 is provided with at least one through-hole 60 and an opening is located on the other side and communicates with each other. The groove 61 of each of the through holes 60. One of the grooves 61 of the cymbal 6 is in communication with the groove 61 of the other cymbal 6, and at least one of the grooves 61 is provided with at least one collecting portion 62 for electrically connecting the freezer The wires of the electrical components can be collected in the groove 61 and rest on the collection portion 62.

One end of one of the bent bodies 7 is vertically connected to one end of the other bent body 7, and each of the bent bodies 7 is provided with a first raised portion 70 at a joint, and each of the first raised portions 70 Angle It is 0.5 ° ~ 2 °.

Each of the door frames 8 includes a joint groove 80 and an abutment portion 81 that is received in the joint groove 80 and connected to the cross member 83 on the middle side of the joint groove 80. Wherein, the bottom side of each of the engaging grooves 80 is open, and a set of openings 82 are formed at both ends of each of the engaging grooves 80, and each of the abutting portions 81 protrudes toward the opening direction of the bottom side. Each of the U-shaped connecting bodies 6 and each of the bent bodies 7 is set into each of the engaging grooves 80 through one of the set openings 82 of each of the door frames 8, and each of the abutting portions 81 abuts on Above the top of each of the bent bodies 7, each of the cymbals 6 is located between each of the abutting portions 81 and each side of each of the engaging grooves 80, and the top of each of the cymbals 6 A distance 84 is formed between 64 and a cross member 83 on each side of the engaging groove 80 where each abutting portion 81 is provided.

Please also match Fig. 5 to Fig. 7-2 together, assemble each of the door frame 8 and the corner joint 5 and set each abutment portion 81 on the top of each bent body 7 Above, by each of the first raised portions 70, a top 64 of each of the crotch-shaped body 6 and a side cross 83 of each of the engaging grooves 80 provided with each of the abutting portions 81 are formed. Each of the intervals 84. After the plurality of screws 9 respectively pass through each of the extending holes 60 from each of the grooves 61 in the direction of each of the engaging grooves 80, a screw hole 85 is penetrated at a position corresponding to each of the cross members 83.

Successively move each of the screws 9 toward each of the cross bars 83, and then the material of each door frame 8 corresponding to each of the screws 9 will be softer than the corner joint 5 and toward each of the cymbals. Moving in 6 directions, each of the distances 84 is gradually reduced. At this time, the end of each door frame 8 near the joint 86 will move toward the joint 86 to meet each other, so that there will be no gap on the outside of the joint 86 where the two door frames 8 meet and prevent external water droplets from flowing into the interior and Achieve beautiful features.

Further, please refer to FIG. 4-1 to FIG. 7-2. In an embodiment, a second uplift is sequentially provided on the outside of each bent body 7 from the outer end 73 to the joint 86. An angle of each of the second raised portion 72, the flat portion 71, and the first raised portion 70 It is 0.5 ° ~ 2 °. According to the present invention, the second warped portion 72, the flattened portion 71, and the first warped portion 70 are sequentially arranged from the outer end 73 to the joint 86 of the outer side of each of the bent bodies 7. The rising portion 70 will make the original distance at each of the distances 84 from small to large, so that each of the cymbal-shaped body 6 and each of the engaging grooves 80 is provided with one of the cross members 83 on one side of the abutting portion 81. The distance between them becomes larger, which means that each of the door frames 8 corresponds to each of the screws 9 and more material will move in the direction of each of the cymbal joints 6, let alone the two door frames 8. A gap is created outside the joint 86.

Further in an embodiment, please refer to FIG. 4-1 to FIG. 7-2 again. The top 64 of each of the cymbals 6 is gradually inclined from the outer end 63 to the joint 86, that is, from the outer end. The 63 height H _{2 is} gradually inclined to the inner end height H ₁ . In the embodiment of the present invention, the distance between the top 64 of each of the knuckle joints 6 and the top of each of the bent bodies 7 is gradually decreased from 3.4 mm to 2.8 mm. By arranging the top 64 of each of the joints 6 in an inclined manner from the outer end 63 to the joint 86, each of the joints 6 and each of the engaging grooves 80 are provided with each of the abutments. The distance between the cross members 83 on the side of the leaning portion 81 is from small to large. When the screws 9 are fastened, since the distance between each of the joints 6 and each of the engaging grooves 80 is provided with each of the abutments 81 on one side of the cross member 83, the distance between the joints 86 is large. That is to say, each door frame 8 corresponding to each of the screws 9 has more material moving in the direction of each cymbal joint 6. At this time, the end of each door frame 8 near the joint 86 will go to the joint 86. The direction is moved more without causing a gap outside the joint 86 where the two door frames 8 meet.

Further, please refer to FIGS. 4-1 to 7-4 again. The top 64 of each of the cymbals 6 is close to the joint 86 and then tilts inward and downward. A first slope section 640 on the outside and a second slope section 641 on the inside are formed on the top 64 of each of the cymbals 6, each of the first slope section 640 and each of the second slope The segments 641 are respectively oriented at different angles, and each of the second slope segments 641 includes at least one penetration hole 60. In the embodiment of the present case, there are two penetration holes 60 in each of the cymbals 6. One of the penetration holes 60 is provided in the first slope section 640, and the other penetration hole 60 is provided in the second. The slope segment 641 is not intended to limit the present invention.

Because the first slope section 640 and the second slope section 641 are formed on the top 64 of each of the cymbals 6, and the angle of the second slope section 641 inwardly inclined is greater than the first slope section 640, so A space 87 having a larger angle is formed between the inner side of the cymbal-shaped body 6 and each cross groove 83 on each side of the abutting portion 80. Wherein, the inclination angle of each of the second slope segments 641 downwards is inward. Set it to 0.5 ° ~ 2 °.

When the screws 9 are locked, the material corresponding to each of the door frames 8 corresponding to each of the screws 9 will move in the direction of each of the cymbals 6 so that each of the intervals 87 gradually decreases, because each of the second slopes The space 87 between the section 641 and each of the joint grooves 80 is provided with each of the abutments 81 on one side of the cross member 83, so that each of the door frames 8 corresponds to each of the nine screws. The material moves in the direction of each of the joints 6. At this time, the end of each door frame 8 near the joint 86 will move more toward the inside of the joint 86 and the inside of the joint 86 where the two door frames 8 meet. No gap is created.

In summary, the following characteristics can be achieved through the above technical characteristics:

1. When each abutment portion 81 abuts on the top of each bent body 7, the first raised portion 70 makes each top portion 64 of each cymbal-shaped body 6 and each of the engaging grooves 80, a distance 84 is formed between one lateral bar 83 of each abutting portion 81. When each of the screws 9 penetrates each of the through holes 60 from the other side to each of the engaging grooves 80, the material of each of the door frames 8 corresponding to each of the screws 9 will go to each of the ㄇ The joint body 6 moves in the direction so that each of the distances 84 gradually decreases. At this time, an end of each door frame 8 near the joint 86 will move toward the joint 86 to be connected, thereby allowing the two door frames 8 to be connected. There is no gap on the outside of the joint 86, which can prevent external water droplets from flowing to the inside and achieve beautiful appearance.

2. The second raised portion 72, the flattened portion 71, and the first raised portion 70 are sequentially provided by the outer side of each bent body 7 from the outer end 73 to the joint 86 in order. The raised portion 70 causes the An original distance of the distance 84 is changed from small to large, so that a distance space between each of the cymbal joints 6 and each of the engaging grooves 80 provided with each of the abutting portions 81 on the side material 83 becomes larger. That is to say, there is more material in each of the door frames 8 corresponding to each of the screws 9 and will move in the direction of each of the cymbal joints 6, and it will not cause a gap outside the joint 86 where the two door frames 8 meet. .

3. Further, by setting the top 64 of each of the joints 6 to be inclined from the outer end 63 to the joint 86, each of the joints 6 and each of the engaging grooves 80 are arranged. The distance between the cross members 83 on each side of each of the abutting portions 81 is from small to large. When the screws 9 are fastened, since the distance between each of the joints 6 and each of the engaging grooves 80 is provided with each of the abutments 81 on one side of the cross member 83, the distance between the joints 86 is large. That is to say, each door frame 8 corresponds to each of the screws 9 and there is more material moving in the direction of each cymbal joint 6. At this time, the end of each door frame 8 near the joint 86 will go to the joint 86. The direction is moved more without causing a gap outside the joint 86 where the two door frames 8 meet.

4. Since the inside of the joint 86 is relatively difficult to handle, the top 64 of each of the cymbals 6 is further provided with the first slope section 640 and the second slope section 641, so that each of the cymbals 6 The space 87 is formed between the inner side of each of the engaging grooves 80 and each of the cross members 83 on the side of the abutting portion 81. And each of the second slope sections 641 contains at least one through-hole 60. When the screws 9 are locked, the material corresponding to each of the door frames 8 corresponding to each of the screws 9 will be directed to each of the cymbals 6 Each space 87 is gradually reduced by moving, because the space 87 of the space 87 between each of the second slope segments 641 and each of the engaging grooves 80 is provided with each of the abutting portions 81 on one side of the crossbar 83. It is so large that each of the door frames 8 corresponds to each of the screws 9 and there is more material moving in the direction of each of the joints 6. At this time, the end of each door frame 8 near the joint 86 will go to the inside of the joint 86. The direction moves more so that there is no gap inside the joint 86 where the two door frames 8 meet.

However, the foregoing is only a preferred embodiment of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and is not intended to limit the scope of implementation of the present invention; For example, any equivalent changes or modifications to the shapes, structures, and characteristics described in the scope of the application of the present invention shall be included in the scope of the patent application of the present invention.

Claims (16)

A freezer door frame assembly structure includes: a corner joint, the corner joint comprising a pair of ㄇ -shaped joints, and a pair of outwardly extending and bent at one end downwardly connected to the outside of each of the 接 -shaped joints In the lower bent body, one end of one of the bent bodies is vertically connected to one end of the other bent body, and each of the bent bodies is provided with at least one penetration hole, and one end of one of the bent bodies One end of each of the bent bodies is vertically connected, and each of the bent bodies is provided with a first raised portion at the joint; and a pair of door frames, each of which includes an engaging groove, and an accommodating portion in the joint And abutting portions connected to the middle side of the engaging groove; wherein the bottom side of each of the engaging grooves is open and a set of openings are formed at both ends of each of the engaging grooves, and each of the abutting portions is toward the bottom side The opening direction protrudes, and each of the cymbal joints and each of the bent bodies is set into each of the joint grooves through one of the set openings of each of the door frames, and each of the abutting portions abuts on each of the joint grooves. Above the top of the bent body, each of the cymbal joints is located at each of the abutments. The engagement between the groove and each of the side and top of each of the inverted-U-shaped mounting member is provided with each of the engagement groove is formed in each of the abutment against a distance between the side portions. The freezer cabinet door frame assembly structure described in item 1 of the scope of patent application, wherein the angle of each of the first raised parts is 0.5 ~ 2 According to the freezer cabinet door frame assembly structure described in the first or second scope of the patent application, wherein each of the bent bodies is provided with a second raised portion, a flat portion and the First raised part. The freezer cabinet door frame assembly structure described in item 3 of the scope of patent application, wherein the angle of each of the second raised parts is 0.5 ~ 2 The assembly structure of the freezer door frame as described in item 1 of the scope of the patent application, wherein the top of each of the cymbals is gradually inclined from the outer end to the joint. According to the freezer door frame assembly structure described in item 5 of the scope of patent application, wherein the distance between the top of each cymbal joint and the top of each bent body is gradually decreased from 3.4 mm to 2.8 mm. The freezer door frame assembly structure described in item 5 of the scope of patent application, wherein the top of each of the cymbals is tilted inwardly and downwardly near the joint, so that the top of each of the cymbals is formed with a bit on the outside. The first slope section and a second slope section on the inner side, and each of the second slope sections contains at least one penetration hole. The freezer door frame assembly structure described in item 7 of the scope of patent application, wherein the inward and downward inclination angle of each second slope section is set to 0.5 ~ 2 A freezer door frame corner joint applied to a freezer door frame assembly structure. The freezer door frame corner joint includes: a corner joint, the corner joint includes a pair of 接 -shaped joints, and a pair of outwardly extending and one end facing A bent body connected downwardly under the outer side of each of the cymbals, one end of one of the cymbals is vertically connected to one end of the other cymbals, and each of the cymbals is provided with at least one An extension hole, one end of one of the bent bodies is vertically connected to one end of the other bent body, and each of the bent bodies is provided with a first raised portion at a joint. The corner joint of the freezer door frame according to item 9 of the scope of patent application, wherein the angle of each of the first raised parts is 0.5 ~ 2 The corner joint of the freezer door frame according to item 9 or item 10 of the scope of patent application, wherein a second raised part, a flat part and the First raised part. The corner joint of the freezer door frame according to item 11 of the scope of patent application, wherein the angle of each of the second raised parts is 0.5 ~ 2 The corner joint of the freezer door frame as described in item 9 of the scope of patent application, wherein the top of each of the cymbals is gradually inclined from the outer end to the joint. The corner joint of the freezer door frame according to item 13 of the scope of the patent application, wherein the distance between the top of each of the cymbal joints and the top of each of the bent bodies is gradually inclined from 3.4 mm to 2.8 mm. The corner joint of the freezer door frame according to item 13 of the scope of patent application, wherein the top of each of the cymbals is close to the joint and then inclined downwards inward, so that the top of each of the cymbals is formed with a bit on the outside. The first slope section and a second slope section on the inner side, and each of the second slope sections contains at least one penetration hole. The corner joint of the freezer door frame according to item 15 of the scope of patent application, wherein the inward downward angle of each second slope section is set to 0.5 ~ 2