Embedded refrigerator hinge and refrigerator

Abstract

The application discloses an embedded refrigerator hinge and relates to the technical field of refrigerators. The embedded refrigerator hinge comprises a first mounting plate fixed to a refrigerator body and a second mounting plate fixed to a refrigerator door. The first mounting plate is provided with a first track groove and a second track groove. A fixing pin is slidably connected in the first track groove. A sliding block is slidably connected in the second track groove. The fixing pin is fixed to the second mounting plate. The sliding block is hingedly connected to the second mounting plate. The embedded refrigerator hinge can meet the needs of embedded installation of the opening and closing door, and the opening angle can reach 120 degrees.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator, in particular to a hinge for an embedded refrigerator. BACKGROUND

[0002] The embedded refrigerator is a kind of refrigerator that can be put into a three-sided sealed space. The embedded refrigerator has the functions of a general refrigerator and can be embedded in a cabinet, forming a whole with the kitchen decoration style and saving home decoration space. Generally, the two sides of an external refrigerator each need 20-30 centimeters of heat dissipation space, while the embedded refrigerator directly connects the refrigerator and the cabinet together, and no space is needed on both sides, which can save about 60 centimeters of space.

[0003] 1. The opening angle of the door of the current embedded refrigerator cannot reach the maximum design angle, causing inconvenience in use and affecting user experience.

[0004] 2. The embedded refrigerator lacks a damping structure to meet the needs of large-angle opening and closing actions, resulting in low service life and poor user experience. SUMMARY

[0005] In view of the above defects, the purpose of the present application is to provide an embedded refrigerator hinge, which aims to solve the technical problem of poor convenience in use of the opening and closing door of the embedded refrigerator in the prior art.

[0006] To solve the above technical problems, one technical scheme of the present application is:

[0007] An embedded refrigerator hinge, comprising a first mounting plate fixed to a refrigerator body and a second mounting plate fixed to a refrigerator door, a first track groove and a second track groove are provided on the first mounting plate, a fixed pin is slidably connected in the first track groove, a sliding block is slidably connected in the second track groove, the fixed pin is fixed to the second mounting plate, and the sliding block is hinged to the second mounting plate.

[0008] As the refrigerator door is opened to the maximum included angle, the fixed pin slides from the starting end to the terminal end of the first track groove, and the sliding block is reset after sliding in the second track groove.

[0009] Among them, the first track groove and the second track groove are crosswise arranged, and the sliding block is provided with an opening for avoiding the fixed pin.

[0010] Among them, the first track groove comprises a first horizontal groove and an arc-shaped groove arranged integrally, the outer end of the arc-shaped groove is the starting end of the first track groove, the second track groove is a second horizontal groove, and the first horizontal groove and the second horizontal groove are vertically through.

[0011] Among them, a damping mechanism is installed between the first mounting plate and the sliding block, and the damping mechanism drives the sliding block to slide and reset in the second track groove.

[0012] The damping mechanism comprises a damping piston outer tube fixed to the first mounting plate, a damping piston inner tube sleeved in the damping piston outer tube, and a first spring connected between the damping piston inner tube and the damping piston outer tube in the axial direction.

[0013] The damping piston inner tube is sleeved with a rubber piston which is elastically supported between the damping piston outer tube and the damping piston inner tube.

[0014] The outer end of the damping piston inner tube is an outer tube portion, a hook is fixed to the outer side of the outer tube portion, a connecting column is fixed to the sliding block, and the hook is hung on the connecting column.

[0015] The outer tube portion is gap-fitted with the damping piston outer tube.

[0016] Opposite side walls of the opening are each provided with a sliding groove, the extension direction of the sliding groove is consistent with the sliding direction of the sliding block, the sliding groove is provided with a clamping block and a second spring for driving the clamping block to slide out of the sliding groove, the two clamping blocks are oppositely arranged, and each of the opposite sides is provided with an arc-shaped clamping groove, and an arc surface or an inclined surface is arranged between the side surface and the end surface of the clamping block.

[0017] Another technical solution of the present application is:

[0018] A refrigerator comprises an embedded refrigerator hinge according to the above technical solution.

[0019] After the above technical solution is adopted, the present application has the following beneficial effects:

[0020] The embedded refrigerator hinge comprises a first mounting plate fixed to the refrigerator body, a second mounting plate fixed to the refrigerator door, a first track groove and a second track groove arranged on the first mounting plate, a fixed pin slidably connected in the first track groove, a sliding block slidably connected in the second track groove, the fixed pin being fixed to the second mounting plate, and the sliding block being hingedly connected to the second mounting plate.

[0021] The damping mechanism is installed between the first mounting plate and the sliding block, and drives the sliding block to slide and reset in the first track groove.

[0022] Because the rubber piston is sleeved on the damping piston inner tube, the rubber piston is elastically supported between the damping piston outer tube and the damping piston inner tube. When the first spring pulls the damping piston inner tube to slide towards the damping piston outer tube, the rubber piston is tightly pressed on the inner wall of the damping piston outer tube, so that the relative sliding friction force between the damping piston outer tube and the damping piston inner tube always exists, and the damping effect is realized. On the other hand, the compressed air is continuously compressed during the movement of the rubber piston towards the damping piston outer tube, and the counterforce of the continuously compressed air will gradually slow down the movement speed of the rubber piston, so that the sliding block speed is reduced, and the damping effect is effectively improved.

[0023] In summary, the embedded refrigerator hinge can meet the needs of the opening and closing door of the embedded installation, and the opening angle can reach 120°. And the refrigerator door has the opening and closing door damping function. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of the first embodiment of the embedded refrigerator hinge of the present application;

[0025] Figure 2 It is a structure schematic view of the second embodiment of the embedded refrigerator hinge of the present application;

[0026] Figure 3 It is Figure 2 a structure schematic view of the bottom view angle;

[0027] Figure 4 It is Figure 2 a sectional view of the damping mechanism;

[0028] Figure 5 It is a structure schematic view of the sliding block in the third embodiment of the embedded refrigerator hinge of the present application;

[0029] In the figure, 1 is a first mounting plate, 10 is a first horizontal groove, 11 is an arc-shaped groove, 12 is a second horizontal groove, 2 is a second mounting plate, 20 is a fixed pin, 21 is a sliding block, 210 is an opening, 211 is a connecting column, 212 is a sliding groove, 213 is a second spring, 22 is a clamping block, 220 is an arc-shaped clamping groove, 3 is a damping mechanism, 30 is a damping piston outer tube, 300 is an outer tube part, 301 is a hook, 31 is a damping piston inner tube, 310 is a rubber piston, and 32 is a first spring. DETAILED DESCRIPTION

[0030] The present application will be further described below in combination with the drawings.

[0031] The directions involved in the specification are all based on the directions of the embedded refrigerator hinge of the present application when it normally works, and are not limited to the directions when it is stored and transported, and only represent relative positional relationships, not absolute positional relationships.

[0032] Example 1:

[0033] like Figure 1 As shown, the embedded refrigerator hinge includes a first mounting plate 1 and a second mounting plate 2. The first mounting plate 1 and the second mounting plate 2 are arranged parallel to each other or close to each other. The first mounting plate 1 is fixed to the refrigerator body, and the second mounting plate 2 is fixed to the refrigerator door. The first mounting plate 1 is provided with a first track groove and a second track groove. In this embodiment, the first track groove and the second track groove both penetrate the upper and lower surfaces of the first mounting plate 1.

[0034] A fixing pin 20 is slidably connected in the first track groove, and a slider 21 is slidably connected in the second track groove. The length direction of the slider 21 is consistent with the extension direction of the second track groove. The fixing pin 20 is vertically fixed to the surface of the second mounting plate 2 facing the first mounting plate 1. The slider 21 and the second mounting plate 2 are rotatably connected by a pivot.

[0035] In the initial state, the refrigerator door is closed, the positioning pin is located at the beginning of the first track groove, and the slider 21 is located at the beginning of the second track groove. As the refrigerator door opens, the positioning pin slides towards the end of the first track groove. When the refrigerator door opens to a specific angle, the slider 21 reaches the end of the second track groove. As the refrigerator door continues to open to the maximum angle position, the slider 21 returns to the starting point from the end of the second track groove, and at the same time, the positioning pin reaches the end of the first track groove.

[0036] The action of the second mounting plate 2 is the action of the refrigerator door. The action of the second mounting plate 2 is achieved by the synchronous combination of the actions of the sliding column and the rotating shaft. When the refrigerator door is opened, the slider 21 returns to its original position and slides in the second track groove. The side of the refrigerator door closest to the refrigerator body moves towards the middle of the refrigerator body opening synchronously, avoiding interference between the refrigerator door and the surrounding cabinets, and realizing the normal use of the built-in refrigerator. The opening angle can reach 120°.

[0037] Furthermore, the first track groove and the second track groove are arranged to cross each other, making the overall structure more compact; the slider 21 is provided with an opening 210. When the positioning pin passes through the intersection of the first track groove and the second track groove, the positioning pin will pass through the opening 210 to avoid movement and ensure that the fixed pin 20 and the slider 21 perform their movements normally.

[0038] Furthermore, the first track groove includes an integrally formed first horizontal groove 10 and an arc-shaped groove 11. The outer end of the arc-shaped groove 11 is the starting end of the first track groove. When the refrigerator door is closed, the fixing pin 20 enters the arc-shaped groove 11 from the first horizontal groove 10. When the fixing pin 20 enters the arc-shaped groove 11, the side of the refrigerator door closest to the refrigerator body moves towards the edge of the refrigerator body, so that the refrigerator door is completely fitted to the refrigerator body.

[0039] Preferably, the second track groove is a second horizontal groove 12, and the first horizontal groove 10 and the second horizontal groove 12 are perpendicular, so that the first track groove and the second track groove are easier to process, and the action of the fixing pin 20 and the sliding block 21 is predictable, so that the structure design is more simple.

[0040] In addition, the top end and the bottom end of the refrigerator door of the refrigerator (not shown in the figure) are provided with embedded refrigerator hinges. The embedded refrigerator hinges connect the refrigerator body and the refrigerator door, and the two embedded refrigerator hinges act synchronously.

[0041] Embodiment two:

[0042] The difference between this embodiment and embodiment one is that, as shown in Figure 2 , Figure 3 and Figure 4 , a damping mechanism 3 is installed between the first mounting plate 1 and the sliding block 21, which drives the sliding block 21 to slide back in the second track groove. So that the refrigerator door can be automatically closed or automatically opened to the maximum position, improving the convenience of use.

[0043] Preferably, the damping mechanism 3 includes a damping piston outer tube 30, a damping piston inner tube 31, and a first spring 32. The damping piston outer tube 30 is fastened on the first mounting plate 1 by bolts, the damping piston inner tube 31 is sleeved in the damping piston outer tube 30, the outer end of the damping piston inner tube 31 is connected with the sliding block 21, and the first spring 32 is preferably a tension spring. The tension spring is sleeved in the damping piston inner tube 31, one end of the tension spring is connected to the damping piston inner tube 31, and the other end is connected to the damping piston outer tube 30. The sliding block 21 is reset in the first track groove by the tension spring, and the tension of the tension spring decreases as the deformation amount of the tension spring decreases, that is, the smaller the angle between the refrigerator door and the body when the refrigerator door is closed, the smaller the elastic reset force, avoiding the refrigerator door from colliding with the refrigerator body.

[0044] Further, the damping piston inner tube 31 is provided with an annular groove, and a rubber piston 310 is sleeved in the annular groove. The rubber piston 310 is elastically supported between the damping piston outer tube 30 and the damping piston inner tube 31. When the first spring 32 pulls the damping piston inner tube 31 to slide towards the damping piston outer tube 30, the rubber piston 310 is tightly pressed against the inner wall of the damping piston outer tube 30, so that there is always a relative sliding friction force between the damping piston outer tube 30 and the damping piston inner tube 31, achieving the damping effect. On the other hand, the rubber piston 310 will continuously compress air during its movement towards the damping piston outer tube 30. The increasing reaction force of the compressed air will gradually slow down the movement speed of the rubber piston 310, that is, the movement speed of the damping piston inner tube 31 and the sliding block 21 will decrease, thereby further improving the damping effect.

[0045] Preferably, the outer end of the inner tube 31 of the damping piston is an outer tube portion 300, and a hook 301 is fixedly connected to the outer side of the outer tube portion 300. A connecting post 211 is fixedly connected to the slider 21, and the hook 301 is hung on the connecting post 211. This makes the connection between the damping mechanism 3 and the slider 21 more flexible. By adjusting the installation angle between the overall axial direction of the damping mechanism 3 and the sliding direction of the slider 21, the magnitude of the force exerted by the damping mechanism 3 on the slider 21 can be adjusted.

[0046] Preferably, the outer tube 300 is clearance-fitted with the damping piston outer tube 30, allowing the outer tube 300 to enter the damping piston outer tube 30, thereby increasing the travel of the outer tube 300.

[0047] Example 3:

[0048] The difference between this embodiment and Embodiment 1 is that, Figure 5 As shown, each of the opposite sidewalls of the opening 210 is provided with a sliding groove 212. The extension direction of the sliding groove 212 is consistent with the sliding direction of the slider 21. Each of the two sliding grooves 212 is slidably connected to a clamping block 22. A second spring 213 is connected between the inner end face of the clamping block 22 and the groove wall of the sliding groove 212. The second spring 213 is a compression spring. The clamping block 22 is driven to slide outward from the sliding groove 212 by the second spring 213. The two clamping blocks 22 are arranged facing each other, and each of the opposite sides is provided with an arc-shaped slot 220. An arc surface is provided between the side and end face of the clamping block 22. In other methods, a slope can also be used instead of an arc surface. As the refrigerator door opens, the retaining pin 20 gradually moves to the opening 210. The retaining pin 20 first presses against the curved surface. As the retaining pin 20 continues to move, it drives the clamping block 22 to move into the sliding groove 212 until the retaining pin 20 is engaged in the curved groove 220. This causes the two clamping blocks 22 to tightly hold the retaining pin 20, achieving elastic restraint on the retaining pin 20. This allows for temporary fixation when the refrigerator door is opened to a 60° position, meeting the needs of small-angle door opening. This reduces cold energy loss and improves energy efficiency.

[0049] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the scope of protection of this invention.

Claims

1. An embedded refrigerator hinge, comprising a first mounting plate fixed to the refrigerator body and a second mounting plate fixed to the refrigerator door, characterized in that, The first mounting plate is provided with a first track groove and a second track groove. A fixing pin is slidably connected in the first track groove, and a slider is slidably connected in the second track groove. The fixing pin is fixed to the second mounting plate, and the slider is hinged to the second mounting plate. As the refrigerator door opens to its maximum angle, the fixing pin slides from the beginning to the end of the first track groove, and the slider slides in the second track groove and then resets. A damping mechanism is installed between the first mounting plate and the slider, and the damping mechanism drives the slider to slide and reset within the second track groove; The damping mechanism includes a damping piston outer tube fixed to the first mounting plate, a damping piston inner tube sleeved inside the damping piston outer tube, the outer end of the damping piston inner tube being connected to the slider, and a first spring being axially connected between the damping piston inner tube and the damping piston outer tube. The first track groove and the second track groove are arranged to intersect, and the slider is provided with an opening for avoiding the fixing pin; The first track groove includes an integrally formed first horizontal groove and an arc-shaped groove. The outer end of the arc-shaped groove is the starting end of the first track groove. The second track groove is a second horizontal groove, and the first horizontal groove and the second horizontal groove are perpendicularly connected.

2. The embedded refrigerator hinge as described in claim 1, characterized in that, A rubber piston is sleeved on the inner tube of the damping piston, and the rubber piston is elastically supported between the outer tube of the damping piston and the inner tube of the damping piston.

3. An embedded refrigerator hinge as described in claim 2, characterized in that, The outer end of the inner tube of the damping piston is the outer tube section. A hook is fixedly connected to the outer side of the outer tube section. A connecting post is fixedly connected to the slider, and the hook is hung on the connecting post.

4. An embedded refrigerator hinge as described in claim 3, characterized in that, The outer tube portion is clearance-fitted with the outer tube portion of the damping piston.

5. An embedded refrigerator hinge as described in claim 1, characterized in that, The opening has grooves on its opposite sidewalls. The extension direction of the grooves is the same as the sliding direction of the slider. The grooves contain clamping blocks and a second spring that drives the clamping blocks to slide out of the grooves. The two clamping blocks are arranged facing each other and have arc-shaped slots on their opposite sides. The side and end faces of the clamping blocks are provided with arc surfaces or inclined surfaces.

6. A refrigerator, characterized in that, Includes an embedded refrigerator hinge as described in any one of claims 1 to 5.

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