CN102242588B - Freezing refrigeration device and hinge for door body of freezing refrigeration device - Google Patents

Abstract

The invention provides a hinge for a door body of a freezing refrigeration device. The freezing refrigeration device comprises a door body and a box body which are in running fit with each other. The hinge on the door body comprises an upper hinge plate (3), wherein one end of the upper hinge plate is a fixed end connected to the box body; a hinge shaft (4) which is in running fit with a positioning sleeve (62) fixed in the door body, stretches out of the other end of the upper hinge plate; a first reinforcing plate (1) which is in clearance fit with the hinge shaft (4) is hung on the hinge shaft (4); and the hinge shaft (4) is fixedly connected to the positioning sleeve (62) through the first reinforcing plate (1) along the axial direction. The invention further provides the freezing refrigeration device, which is provided with an upper decorative strip (6), a side decorative strip (8) and the hinge on the door body, wherein the upper decorative strip (6) and the side decorative strip (8) are connected with each other on the door body and the positioning sleeve (62) is integrally formed with the upper decorative strip (6). The weight of the door body is shared by an upper hinge and a lower hinge, thereby enabling the appearance of the freezing refrigeration device to be neat, prolonging the service life of the freezing refrigeration device, and being excellent in structural strength and stable in structure.

Description

Door body upper hinge for freezing and refrigerating devices and refrigerating and refrigerating devices

technical field

The invention relates to an upper hinge for a door body of a freezer and a freezer and the freezer.

Background technique

On the existing high-end refrigerators and freezers (such as living room cabinets, wine cabinets, etc.), due to the needs of diversified door structure and functions, the doors are relatively heavy, and the upper hinges are generally not load-bearing. The current middle hinge or lower hinge is not enough to support the door body, and the lower hinge is deformed by force, which will cause one end of the door body to sink, so that the door body tilts, affecting the overall appearance and service life of the refrigerator.

The patent with the publication number CN201421232 discloses a "refrigerator door upper hinge and refrigerator", but it improves the connection method between the upper hinge plate and the box body, and still has the defect that the upper hinge cannot share the weight of the door body, so The inclination of the door body and the resulting defects in service life and appearance will occur.

Contents of the invention

In view of the problems existing in the related art, the purpose of the present invention is to provide a hinge on the door body for a freezer and refrigerator and a freezer and refrigerator to solve the problem of door body inclination.

In order to achieve the above object, according to one aspect of the present invention, there is provided a door upper hinge for a freezer and refrigerator, the freezer has a door body and a box that are rotatably fitted, and the door upper hinge includes: an upper hinge plate , one end of which is a fixed end connected to the box body, and the other end protrudes from a hinge shaft that is rotatably matched with the positioning sleeve fixed in the door body; The first reinforcing plate is tightly connected with the positioning sleeve in the axial direction.

Preferably, the hinge shaft has a stepped portion, and the first reinforcing plate is sleeved on the shaft section above the stepped portion and arranged on the stepped portion.

Preferably, a wear-resistant collar is sleeved on the hinge shaft, and the wear-resistant collar is arranged between the step portion and the first reinforcement plate.

Preferably, the hinge shaft is a hollow shaft, one end of the hollow shaft passes through the upper hinge plate and is turned over, and the flange is energy-storage welded to the upper hinge plate.

Preferably, a shaft sleeve is fixed in the positioning sleeve, and the hinge shaft rotatably cooperates with the positioning sleeve through the shaft sleeve.

Preferably, the freezing and refrigerating device is a refrigerator or a freezer.

According to another aspect of the present invention, there is also provided a refrigerating device, which has an upper decorative strip and a side decorative strip which are arranged on the door and are connected to each other. The refrigerating device also has the aforementioned upper hinge on the door, and the positioning sleeve Integral molding with upper trim.

Preferably, the freezing and refrigerating device further includes: a second reinforcing plate, having a first bent portion fastened to the upper trim strip, and a second bent portion hooked to the side trim strip.

Preferably, the first bending part also has an opening that fits into the positioning sleeve, the longitudinal edge of the second bending part is provided with a notch, and the side trim is provided with a rib hooked to the notch.

Preferably, there is a right angle between the first bent portion and the second bent portion.

The beneficial effects of the present invention are: since the hinge shaft is suspended with the first reinforcing plate which fits with it in a clearance, and the hinge shaft is tightly connected with the positioning sleeve of the door body in the axial direction through the first reinforcing plate, so that the upper hinge of the door body Share part of the weight of the door body so that the door body will not tilt, which makes the appearance of the freezer and refrigerator neat and prolongs the service life of the freezer;

Further, since the second reinforcing plate can connect and strengthen the side trim strips and the upper trim strips, the upper hinge of the door body plays the role of transmitting force on the side wall during the load-bearing process, so that the side trim strips and the upper trim strips will not be damaged. Separation, thus the structural strength of the present invention is better and the structure is more stable;

Furthermore, since the upper hinge of the door body of the present invention includes a wear-resistant collar, this reduces friction and noise when the door body turns.

Description of drawings

Fig. 1 is the exploded view of hinge on the door body of the present invention;

Fig. 2 is a perspective view of the hinge assembly on the door body of the present invention;

Fig. 3 is a sectional view taken along the hinge shaft in Fig. 2, wherein the hinge shaft is fixed to the upper hinge plate and the first reinforcing plate is suspended;

Fig. 4 is a partial perspective view 1 of the freezing and refrigerating device of the present invention, showing the assembly relationship between the upper hinge of the door body and the door body in an exploded state, wherein the upper hinge of the door body in a disassembled state, and the upper decorative strip, Side trim, etc.;

Fig. 5 is a partial perspective view 2 of the freezing and refrigerating device of the present invention, showing the assembly relationship between the upper hinge of the door body and the door body in an exploded state, wherein the upper hinge of the door body is in an assembled state;

Fig. 6 is a sectional view of a part of the structure of the freezer of the present invention, showing the details of the connection between the hinge on the door body and the door body after assembly, wherein the first reinforcement plate fastens the hinge shaft and the positioning sleeve in the axial direction, and the door body The upper hinge is in the state of sharing the weight of the door body;

Fig. 7 is a perspective view showing the details of the connection between the side molding and the second reinforcement panel in the present invention.

Detailed ways

Referring to Fig. 1 to Fig. 3, the upper hinge of the door body used in the freezer and refrigerator of the present invention is described. One end of 3 is fixedly connected to the box body of the refrigerating device, and the hinge shaft 4 protrudes from the other end. The first reinforcing plate 1 is suspended from the hinge shaft 4 and is loosely matched with the hinge shaft 4 .

Referring to Fig. 3, the hinge shaft 4 has a stepped portion 9, the first reinforcing plate 1 has a through hole with an inner diameter smaller than the outer diameter of the stepped portion 9, and the first reinforcing plate 1 is clearance-fitted with the shaft section above the stepped portion 9 through the through hole, so as to Set at the step portion 9 of the hinge shaft 4 . As shown in FIG. 3 , the first reinforcing plate 1 is in a suspended state, that is, the step portion 9 can hang on the first reinforcing plate 1 . FIG. 1 shows that the first reinforcing plate 1 also has a plurality of connection holes arranged around the through holes.

In Fig. 3, the wear-resistant collar 2 sleeved on the hinge shaft 4 is also clearly shown (for example, the wear-resistant collar in this embodiment is a polyoxymethylene resin collar, referred to as POM collar), and the POM collar It is provided between the stepped portion 9 and the first reinforcing plate 1 . The hinge shaft 4 is a hollow shaft, and one end of the hollow shaft passes through the upper hinge plate 3 and is flipped flat, and then the flange is fixedly connected to the upper hinge plate 3, and the fixed connection is preferably energy storage welding.

The assembly process of the hinge on the door body of the present invention is as follows: first, the hinge shaft 4 is sequentially loaded into the POM collar, the first reinforcement plate 1, and the upper hinge plate 3, and then the flange is flattened, and then the hinge shaft 4 is welded with the hinge shaft 4 by energy storage welding. The upper hinge plate 3 is firmly welded together. The hinge shaft 4 is made into a step shaft, so that the step portion 9 is hooked to the first reinforcing plate 1. When the hinge on the door body is assembled in a refrigeration device as described below, it can transmit force, so that the hinge on the door body load bearing. The upper hinge plate 3 and the hinge shaft 4 are welded together by energy storage welding to ensure their strength. The POM collar is between the first reinforcing plate 1 and the hinge shaft 4, and can effectively reduce noise when opening and closing the door.

Referring to Fig. 4 to Fig. 6, the refrigerating device with the above-mentioned upper hinge on the door body of the present invention is described, and the connection between the upper hinge on the door body and the door body of the refrigerating and refrigerating device is described in detail. In this embodiment, the door body is provided with an upper trim strip 6 and a side trim strip 8 connected to each other, and the side trim strip 8 is located on a side close to the rotation center of the door body. Here, the positioning sleeve 62 in the door body is shown as It is integrally formed with the upper decorative strip 6, and the positioning sleeve 62 is fixed with the shaft sleeve 5. The hinge shaft 4 rotates and cooperates with the positioning sleeve 62 through the shaft sleeve 5. The upper hinge of the door body is fixedly connected with the box body through the upper hinge plate 3. The hinge shaft 4 It is fixedly connected with the upper hinge plate 3, so that the door body rotates around the hinge shaft 4, and the door body and the box body rotate in cooperation. FIG. 6 also shows the details of the connection between the shaft sleeve 5 and the positioning sleeve 62 , the shaft sleeve 5 protrudes into the positioning sleeve 62 and snap fits with it.

The following describes the assembly of the hinge on the door body and the door body of the freezer. Before the door body is foamed, the shaft sleeve 5, the upper trim strip 6, the second reinforcement plate 7, and the side trim strip 8 are first assembled together: when pre-installing the door body before foaming, the second reinforcement plate 7 and the side The decorative strip 8 is installed together by side insertion, and then the second reinforcing plate 7 and the side decorative strip 8 are mounted on the upper decorative strip 6, and the upper decorative strip 6 and the second reinforcing plate 7 are fixed by screws, and finally the The shaft sleeve 5 is fitted into the positioning sleeve 62 of the upper trim strip 6 through buckling. Then it is sealed and the door body is foamed. Further, as shown in Figure 6, put the assembled upper hinge into the shaft sleeve 5, and fix the first reinforcement plate 1, the upper decorative strip 6, and the second reinforcement plate 7 with screws to securely connect the upper hinge of the door body. On the upper decorative strip 6, the fixed connection makes the hinge shaft 4, which is rotatably matched with the shaft sleeve 5, tightly connected with the positioning sleeve 62 formed on the upper decorative strip 6 in the axial direction, so that the upper hinge of the door body can bear the load and share the responsibility of the door. body weight. As shown in FIG. 6 , at this moment, the first reinforcing plate 1 presses down the step portion 9 of the hinge shaft 4 in the axial direction and is tightly connected with the positioning sleeve 62 , and the POM collar is in a compressed state.

Referring to FIG. 7 , the details of the connection between the second reinforcing plate 7 and the side trim 8 are described. The second reinforcing plate 7 includes: a first bending portion 71 connected to the upper trim 6 , and a second bending portion 71 connected to the side trim 8 . The bending part 72, wherein, the first bending part 71 also has an opening that is socketed with the positioning sleeve 62; the longitudinal edge of the second bending part 72 is provided with a notch 73, and the side trim strip 8 is provided with a rib 81, Through the cooperation between the notch 73 and the rib 81 , the second bent portion 72 is hooked in the side trim 8 . Therefore, when the first bending portion 71 is tightly connected to the upper molding 6 , the second bending portion 72 pulls the side molding 8 upward, that is, the side molding 8 is hung on the second bending portion 72 . The second reinforcing plate 7 can connect and strengthen the side trim strip 8 and the upper trim strip 6, so that the door body plays the role of side wall transmission force during the load-bearing process of the upper hinge, so that the side trim strip 8 and the upper trim strip will not be connected. Bar 6 is separated. In addition, FIG. 7 shows that the first bent portion 71 and the second bent portion 72 form a right angle.

The freezing and refrigerating device of the present invention may be a refrigerator, a freezer, etc., and the first reinforcing plate and the second reinforcing plate are made of iron.

The beneficial effects of the present invention are: since the hinge shaft is suspended with the first reinforcing plate which fits with it in a clearance, and the hinge shaft is tightly connected with the positioning sleeve of the door body in the axial direction through the first reinforcing plate, so that the upper hinge of the door body Share part of the weight of the door body so that the door body will not tilt, which makes the appearance of the freezer and refrigerator neat and prolongs the service life of the freezer;

Further, since the second reinforcing plate can connect and strengthen the side trim strips and the upper trim strips, the upper hinge of the door body plays the role of transmitting force on the side wall during the load-bearing process, so that the side trim strips and the upper trim strips will not be damaged. Separation, thus the structural strength of the present invention is better and the structure is more stable;

Furthermore, since the upper hinge of the door body of the present invention includes a wear-resistant collar, this reduces friction and noise when the door body turns.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A hinge on a door body for a freezer and refrigerator, the freezer has a door body and a casing that are rotatably fitted, and the hinge on the door body includes: The upper hinge plate (3), one end of which is a fixed end connected to the box body, and the other end protrudes from the hinge shaft (4) that is rotatably matched with the positioning sleeve (62) fixed in the door body; It is characterized in that the hinge shaft (4) is suspended with a first reinforcing plate (1) which fits with it in a clearance, and the hinge shaft (4) passes through the first reinforcing plate (1) and the positioning sleeve (62) Fasten the connection in the axial direction. 2. The door upper hinge according to claim 1, characterized in that, the hinge shaft (4) has a stepped portion (9), and the first reinforcing plate (1) is sleeved on the stepped portion (9) ) above the shaft section and set on the step (9). 3. The upper hinge of the door body according to claim 2, characterized in that, the hinge shaft (4) is also sleeved with a wear-resistant collar (2), and the wear-resistant collar (2) is arranged on Between the step portion (9) and the first reinforcing plate (1). 4. The upper hinge of the door body according to claim 3, characterized in that, the hinge shaft (4) is a hollow shaft, and one end of the hollow shaft passes through the upper hinge plate (3) and is turned over, so The flange is energy-storage welded with the upper hinge plate (3). 5. The upper hinge of the door body according to claim 4, characterized in that, a shaft sleeve (5) is fixed in the positioning sleeve (62), and the hinge shaft (4) passes through the shaft sleeve (5) and The positioning sleeve (62) is rotationally fitted. 6. The door upper hinge according to any one of the preceding claims, characterized in that, the freezing and refrigerating device is a refrigerator or a freezer. 7. A refrigerating device, which has an upper trim (6) and a side trim (8) that are arranged on the door body and are connected to each other, characterized in that, The freezing and refrigerating device also has the upper hinge of the door body according to any one of the preceding claims, and the positioning sleeve (62) is integrally formed with the upper trim strip (6). 8. The freezer according to claim 7, further comprising: The second reinforcing plate (7) has a first bent portion (71) fastened to the upper trim (6), and a second bent portion (71) hooked to the side trim (8) 72). 9. The freezer according to claim 8, characterized in that, the first bending part (71) also has an opening socketed with the positioning sleeve (62), and the second bending part A notch (73) is provided on the longitudinal edge of (72), and a rib (81) hooked to the notch (73) is provided in the side trim strip (8). 10. The freezing and refrigerating device according to claim 9, characterized in that, the first bending portion (71) and the second bending portion (72) form a right angle.