CN212898047U - Damping hinge and refrigeration plant - Google Patents

Abstract

The utility model discloses a damping hinge and refrigeration plant, the damping hinge includes hinge seat, fixing base, fixed axle, spacing axle, gyro wheel, slider and buffering subassembly, be formed with spacing arch and a plurality of arc hole on the hinge seat, the fixing base through a fixed axle with the hinge seat is articulated, spacing axle is passed fixing base and both ends are located one respectively in the arc hole, spacing axle at least partial with the fixing base contact makes through frictional force between the two spacing axle is in slide in the arc hole, the gyro wheel is fixed set up in spacing epaxial, the slider with hinge seat sliding connection, the slider can by the gyro wheel promotes, the buffering subassembly is used for the restriction the sliding motion of slider. The utility model discloses can realize the effectual buffering of closing the door to opening, not only simple structure can also avoid because of the tong or the vibrations that the switch door too big leads to often hard, guarantees the life of equipment.

Description

Damping hinge and refrigeration plant

Technical Field

The utility model relates to a refrigeration plant technical field, in particular to damping hinge and refrigeration plant.

Background

In refrigeration equipment, a hinge is generally used for opening and closing a door of the refrigeration equipment such as a refrigerator, most of the hinges of the existing refrigeration equipment are hinges with springs, and the function of opening and closing the door body is realized by transmitting force under the action of the springs on the hinges.

Generally, when a door of a refrigeration device with a spring hinge is closed, a hand is easily clamped due to an excessively fast speed, and in addition, a relatively violent door closing action can cause vibration damage to components arranged inside the refrigeration device, such as a lamp inside the refrigeration device, so that the service life of the refrigeration device is seriously influenced. In addition, although there is the mechanism that can slow down the work of closing the door at present, its structure is generally all more complicated, and the production degree of difficulty is big, is unfavorable for using widely.

Thus, the prior art has yet to be improved and enhanced.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art, an object of the present invention is to provide a damping hinge and a refrigeration device, which are not only simple in structure, but also capable of significantly slowing down the door opening and closing action of the device, so that the door opening and closing is more stable, and the hand clamping is avoided.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a damped hinge, comprising:

the hinge base is provided with a limiting bulge and a plurality of arc-shaped holes;

the fixed seat is hinged with the hinge seat through a fixed shaft, the fixed shaft penetrates through the fixed seat, two ends of the fixed shaft are fixed with the hinge seat, and the fixed seat can rotate around the fixed shaft;

the limiting shaft penetrates through the fixed seat, two ends of the limiting shaft are respectively positioned in the arc-shaped holes, at least part of the limiting shaft is in contact with the fixed seat, and the limiting shaft slides in the arc-shaped holes through friction force between the limiting shaft and the fixed seat;

the roller is fixedly arranged on the limiting shaft;

the sliding block is connected with the hinge seat in a sliding mode and can be pushed by the roller to achieve sliding motion relative to the hinge seat;

and the buffer assembly is connected with the sliding block and is used for limiting the sliding motion of the sliding block.

Compared with the prior art, the utility model provides a damping hinge and refrigeration plant, through making the mount pad with the relative rotation takes place for the hinge seat to can realize refrigeration plant's switch door, in addition, through inciting somebody to action the mount pad with the relative rotation of hinge seat turns into the slip operation of slider, utilizes the buffering subassembly to restrict the sliding motion of slider, and then the realization is right the mount pad with the restriction of hinge seat relative rotation realizes the effectual buffering of closing the door promptly, and not only simple structure can also avoid because of too big tong or vibrations that lead to often hard of switch door, guarantees the life of equipment.

Drawings

Fig. 1 is a front view of a preferred embodiment of a damped hinge according to the present invention;

fig. 2 is a perspective view of a preferred embodiment of the damping hinge provided by the present invention;

fig. 3 is a schematic structural view of a preferred embodiment of the hinge base of the damping hinge according to the present invention;

fig. 4 is a schematic structural view of a preferred embodiment of the limiting shaft in the damping hinge provided by the present invention;

fig. 5 is a schematic structural view of a preferred embodiment of the slider in the damping hinge according to the present invention;

fig. 6 is a schematic structural view of a preferred embodiment of the damper in the damping hinge provided by the present invention.

Detailed Description

The utility model provides a damping hinge and refrigeration plant, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the embodiment is lifted to follow with reference to the attached drawing the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a damping hinge, which is installed on a cabinet body and a cabinet door of a refrigeration device, and is used for closing and opening the cabinet door, wherein the refrigeration device may be a household device such as a refrigerator, and the damping hinge includes: hinge mount 100, fixing mount 200, fixing shaft 300, limiting shaft 400, roller 500, slider 600 and buffer assembly 700.

Specifically, a limiting protrusion 110 and a plurality of arc-shaped holes 120 are formed on the hinge base 100, the limiting protrusion 110 is used for limiting the maximum sliding position of the sliding block 600, and the arc-shaped holes 120 are used for providing a rotating space for the limiting shaft 400.

The fixing base 200 is hinged to the hinge base 100 through the fixing shaft 300, the fixing shaft 300 penetrates through the fixing base 200, and both ends of the fixing shaft 300 are fixed to the hinge base 100, the fixing base 200 can rotate around the fixing shaft 300, when the fixing base 200 rotates around the fixing shaft 300, the fixing base 200 and the hinge base 100 rotate relatively, so that if the hinge base 100 is installed on a cabinet body, and when the fixing base 200 is installed on the cabinet door, the cabinet door can be opened and closed through the relative rotation of the fixing base 200 and the hinge base 100.

The limiting shaft 400 penetrates through the fixing base 200, two ends of the limiting shaft are respectively located in one arc-shaped hole 120, at least part of the limiting shaft 400 is in contact with the fixing base 200, and the limiting shaft 400 slides in the arc-shaped hole 120 through friction force between the limiting shaft and the fixing base 200, specifically, when the fixing base 200 rotates relative to the fixing shaft 300, the limiting shaft 400 is driven by the friction force to rotate and can slide in the arc-shaped hole 120 due to the friction force between the fixing base 200 and the limiting shaft 400, that is, the rotation motion of the fixing base 200 is converted into the reciprocating motion of the limiting shaft 200 in the arc-shaped hole 120.

The roller 500 is fixedly disposed on the limiting shaft 400, and when the limiting shaft 400 slides in the arc-shaped hole 120 in a reciprocating manner, the roller 500 is driven to perform a reciprocating motion.

The slider 600 is slidably connected to the hinge base 100, the slider 600 can be pushed by the roller 500 to realize a sliding motion relative to the hinge base 100, the roller 500 is driven by the limiting shaft 400 to move, and when the roller is abutted to the slider 600, the slider 600 is pushed by the roller 500, so that the slider 600 performs a sliding motion relative to the hinge base 100.

The buffer assembly 700 is movably mounted on the hinge base 100 and connected to the slider 600, the buffer assembly 700 is used for limiting the sliding motion of the slider 600, when the slider 600 slides on the hinge base 100, the buffer assembly 700 can slow down the sliding motion of the slider 600, so when the fixed base 200 and the hinge base 100 rotate relatively (i.e. the cabinet door is opened or closed), the limiting shaft 400 rotates in the arc-shaped hole 120 due to friction force to drive the roller 500 to move, the roller 500 abuts against the slider 600 when moving to push the slider 600 to do sliding motion, when the slider 600 slides, the buffer assembly 700 can slow down the sliding motion of the slider 600, so when the cabinet door is opened or closed, the rotation of the fixed base 200 can be slowed down through the buffer assembly 700 to further slow down the opening and closing of the door, accidents such as hand clamping and the like are avoided, the service life of the equipment is also ensured, the structure is simple, the production difficulty is low, and the mass production and popularization are easy.

Referring to fig. 3, the hinge base 100 is further formed with two first mounting holes 130, two second mounting holes 140, two sliding ways 150 and two limiting plates 160, two ends of the fixing shaft 300 are respectively located in the two first mounting holes 130, the cushion assembly 700 is located in the two second mounting holes 140, the second mounting holes 140 can limit the movement of the cushion assembly 700, so that the position of the cushion assembly 700 is fixed, and further the cushion assembly 700 is prevented from moving when the slider 600 slides, so that the cushion assembly 700 cannot slow down the sliding movement of the slider 600, the slider 600 is located in the two sliding ways 150 and can slide in the sliding ways 150, when the slider 600 is located in the initial sliding position, the two limiting plates 160 abut against the slider 600, so as to limit the initial sliding position of the slider 600, the problem that the sliding block 600 can be contacted with the roller 500 at any time to cause difficulty in opening and closing the door is avoided.

Preferably, limit protrusion 110 and limit plate 160 are all punched and formed, conveniently process.

Referring to fig. 1 to 4, a spline portion 410 is formed on the limiting shaft 400, a contact portion (not shown) is formed on the fixing base 200, an outer circumferential surface of the spline portion 410 and an inner circumferential surface of the contact portion are in contact with each other to form a friction contact region, the friction contact region is used for generating friction force, when the fixing base 200 rotates relative to the hinge base 100, the contact portion and the spline portion 410 generate friction force, and the limiting shaft 400 rotates under the driving of the friction force and then moves in the arc-shaped hole 120, and drives the roller 500 to move, thereby achieving the sliding of the slider 600.

Referring to fig. 5, the slider 600 includes a top plate 610 and two side plates 620, the two side plates 620 are respectively located at two sides of the top plate 610 and are fixedly connected to the top plate 610, the two side plates 620 are respectively located in a slide channel 150, a limiting hole 621 is formed on the side plates 620, the buffer assembly 700 is located in the limiting hole 621 of the two side plates and can move along with the slider 600, so as to slow down the sliding of the slider 600, a limiting portion 622 is further formed on the side plates 620, the limiting portion 622 is used for abutting against the limiting plate 160, and when the limiting portion 622 abuts against the limiting plate 160, the slider 600 cannot move upwards any more, so as to limit the initial position of the slider 600.

In a preferred embodiment, the top plate 610 and the two side plates 620 are integrally formed, so that the processing is convenient.

Referring to fig. 1, the buffering assembly 700 includes an upper supporting seat 710, a first spring 720, a lower supporting seat 730, a damper 740, an upper bushing 750 and a lower bushing 760, two ends of the upper supporting seat 710 are respectively located in the limiting holes 621 of the two side plates 620 and can be driven by the slider 600 to move, two ends of the lower supporting seat 730 are respectively located in the two second mounting holes 140, the upper bushing 750 is fixed on the upper supporting seat 710, the lower bushing 760 is fixed on the lower supporting seat 730, the lower supporting seat 730 is limited by the two second mounting holes 140, so that the lower supporting seat 730 cannot be driven to move, the first spring 720 is installed between the upper supporting seat 710 and the lower supporting seat 730 and is sleeved on the damper 740, one end of the damper 740 passes through the upper supporting seat 710 and is located in the inner cavity of the upper bushing 750, the other end of the damper 740 passes through the lower support 730 and is located in the inner cavity of the lower bushing 760, and the limit protrusion 110 is used to limit the maximum moving position of the upper support 710.

Specifically, when the door is closed, the fixing seat 200 rotates relative to the hinge seat 100, and then drives the limiting shaft 400 to rotate through friction, so that the limiting shaft 400 moves in the arc-shaped hole 120, the limiting shaft 400 drives the roller 500 to move when moving, so that the roller 500 contacts the slider 600 and pushes the slider 600 to slide in the sliding channel 150, when the slider 600 slides, the upper supporting seat 710 is driven to move forward through the limiting hole 621, because the lower supporting seat 730 is limited by the second mounting hole 140, the upper supporting seat 710 gradually approaches the lower supporting seat 730, so as to press the first spring 720 and the damper 740, and when the first spring 720 and the damper 740 are pressed, an elastic force opposite to the moving direction of the upper supporting seat 710 is generated, so as to slow down the movement of the upper supporting seat 710, further, the rotation motion of the fixed seat 200 is slowed down, and the buffering of door closing of the refrigeration equipment is realized; when the door is opened, the upper supporting seat 710 moves reversely, and the moving speed of the upper supporting seat 710 can be reduced due to the elastic force of the first spring 720 and the damper 740, so that the door opening buffer of the refrigeration equipment is realized.

In a preferred embodiment, a limiting block 141 is formed in the second mounting hole 140, and two ends of the lower support 730 are respectively abutted to the two limiting blocks 141, so that the movement of the lower support 730 can be better limited, and a better buffering effect can be achieved.

In a further embodiment, referring to fig. 6, the damper 740 includes a tubular housing 741, an end cap 742, a piston rod 743, a piston (not shown), a second spring 744 and a tip 745, wherein one end of the tubular housing 741 is fixed to the inner cavity of the lower bushing 760, the piston 743 is disposed in the inner cavity of the tubular housing 741 and can slide back and forth along the inner cavity of the tubular housing 741, one end of the piston rod 743 passes through the end cap 742 and is connected to the piston, one end of the second spring 744 abuts against the tip 745 connected to the other end of the piston rod 743, the tip 745 is fixed to the inner cavity of the upper bushing 750, and the other end of the second spring 744 abuts against the end cap 742. When the door is closed, the upper supporting seat 710 drives the upper bushing 750 to move forward, the second spring 744 is stressed and extruded to have reverse resilience force, so that the forward movement of the upper supporting seat 710 can be slowed down, and the door closing buffering is realized; when the door is opened, the upper supporting seat 710 moves in the reverse direction, and the second spring 744 is stretched to have a positive pulling force, so that the reverse movement of the upper supporting seat 710 is slowed down, and the door opening buffer is realized.

Based on above-mentioned damping hinge, the utility model discloses it is still corresponding to provide a refrigeration plant, refrigeration plant can be refrigerator, refrigerator-freezer etc., refrigeration plant includes the cabinet body and cabinet door, the cabinet body and cabinet door are through the damping hinged joint as above-mentioned embodiment, because the above has carried out detailed description to the damping hinge, no longer repeated here.

To sum up, the utility model provides a damping hinge and refrigeration plant, through making the mount pad with the relative rotation takes place for the hinge seat to can realize refrigeration plant's switch door, in addition, through inciting somebody to action the mount pad with the relative rotation of hinge seat turns into the slip operation of slider, utilizes the buffering subassembly to restrict the sliding motion of slider, and then the realization is right the mount pad with the restriction of hinge seat relative rotation realizes the effectual buffering of closing the door to opening promptly, and not only simple structure can also avoid because of too big tong or vibrations that lead to often hard of switch door, guarantees the life of equipment.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims (10)

1. A damped hinge, comprising:

the hinge base is provided with a limiting bulge and a plurality of arc-shaped holes;

the fixed seat is hinged with the hinge seat through a fixed shaft, the fixed shaft penetrates through the fixed seat, two ends of the fixed shaft are fixed with the hinge seat, and the fixed seat can rotate around the fixed shaft;

the limiting shaft penetrates through the fixed seat, two ends of the limiting shaft are respectively positioned in the arc-shaped holes, at least part of the limiting shaft is in contact with the fixed seat, and the limiting shaft slides in the arc-shaped holes through friction force between the limiting shaft and the fixed seat;

the roller is fixedly arranged on the limiting shaft;

the sliding block is connected with the hinge seat in a sliding mode and can be pushed by the roller wheel to achieve sliding movement relative to the hinge seat, and the limiting protrusion is used for limiting the maximum sliding position of the sliding block;

the buffer assembly is movably mounted on the hinge seat and connected with the sliding block, and the buffer assembly is used for limiting the sliding motion of the sliding block.

2. The damped hinge according to claim 1, wherein the hinge base further has two first mounting holes, two second mounting holes, two sliding ways, and two limiting plates, two ends of the fixed shaft are respectively located in the two first mounting holes, the damping assembly is located in the two second mounting holes, the second mounting holes can limit the movement of the damping assembly, the sliding block is located in the two sliding ways and can slide in the sliding ways, and when the sliding block is located at the initial sliding position, the two limiting plates abut against the sliding block.

3. The damped hinge according to claim 2 wherein the limiting protrusion and the limiting plate are both stamped and formed.

4. The damped hinge according to claim 1, wherein a spline portion is formed on the stopper shaft, a contact portion is formed on the fixing base, and an outer circumferential surface of the spline portion and an inner circumferential surface of the contact portion are in contact with each other to form a friction contact area.

5. The damping hinge according to claim 2, wherein the slider includes a top plate and two side plates, the two side plates are respectively located on two sides of the top plate and are fixedly connected to the top plate, the two side plates are respectively located in a slide way, the side plates are provided with limiting holes, the damping assembly is located in the limiting holes of the two side plates, and the side plates are further provided with limiting portions for abutting against the limiting plates.

6. The damped hinge according to claim 5 wherein the top plate and the two side plates are integrally formed.

7. The damped hinge according to claim 5, wherein the damping assembly comprises an upper supporting seat, a first spring, a lower supporting seat, a damper, an upper bushing and a lower bushing, two ends of the upper supporting seat are respectively located in the two limiting holes of the side plates and can be driven by the slider to move, two ends of the lower supporting seat are respectively located in the two second mounting holes, the upper bushing is fixed on the upper supporting seat, the lower bushing is fixed on the lower supporting seat, the lower supporting seat is limited by the two second mounting holes, the first spring is installed between the upper supporting seat and the lower supporting seat and sleeved on the damper, one end of the damper passes through the upper supporting seat and is located in the inner cavity of the upper bushing, and the other end of the damper passes through the lower supporting seat and is located in the inner cavity of the lower bushing, the limiting bulge is used for limiting the maximum moving position of the upper supporting seat.

8. The damped hinge according to claim 7, wherein a stopper is formed in the second mounting hole, and two ends of the lower support seat abut against the two stoppers, respectively.

9. The damped hinge according to claim 7, wherein the damper includes a tubular housing, an end cap, a piston rod, a piston, a second spring, and an end cap, one end of the tubular housing is closed and fixed to the inner cavity of the lower bushing, the piston is disposed in the inner cavity of the tubular housing and can slide back and forth along the inside of the tubular housing, one end of the piston rod passes through the end cap and is connected to the piston, one end of the second spring abuts against the end cap connected to the other end of the piston rod, the end cap is fixed to the inner cavity of the upper bushing, and the other end of the second spring abuts against the end cap.

10. Refrigeration appliance comprising a cabinet body and a cabinet door, characterized in that the cabinet body and the cabinet door are connected by means of a damped hinge according to any one of claims 1-9.

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