CN108143293B

CN108143293B - Damping device and device comprising the same

Info

Publication number: CN108143293B
Application number: CN201810015413.5A
Authority: CN
Inventors: 左双全; 陈群; 林康桂; 肖彪; 孙志辰
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2018-01-08
Filing date: 2018-01-08
Publication date: 2020-11-27
Anticipated expiration: 2038-01-08
Also published as: CN108143293A

Abstract

The invention discloses a damping device and a device comprising the same, belongs to the technical field of kitchen appliances and parts thereof, and is designed for solving the problems of complicated structure, small resistance and the like of the existing damping device. The damping device comprises an outer shell cover for mounting and fixing, a sealing cover for enclosing a closed space with the outer shell cover, an elastic sheet arranged in the outer shell cover and an inner core for transmitting rotating force with a hinged shaft; the elastic sheet comprises an elastic part and a blocking part, an inner core lug is arranged on the outer wall of the inner core, the inner core lug abuts against the blocking part when the inner core rotates to a set position, and the elastic part provides elastic force for the blocking part so as to reduce the rotating speed of the inner core. The damping device and the device comprising the damping device simplify the whole structure, require few parts, reduce the cost and reduce the volume of the device; the elastic sheet provides resistance, so that the deformation space is larger and the elasticity is larger.

Description

Damping device and device comprising the same

Technical Field

The invention relates to the technical field of kitchen appliances and parts thereof, in particular to a damping device and a device comprising the damping device.

Background

Containers such as electric cookers, which require frequent opening of the upper lid, often use structures such as torsion springs to drive the upper lid to open. In view of the fact that the driving structure still applies a relatively large pushing force when the upper cover is opened and is about to be in place, which causes the connection part of the upper cover and the pot body to be violently impacted, a damping device is usually needed. When the upper cover is opened to be in place, the damping device provides greater resistance, and the movement speed of the upper cover is slowed down until the upper cover stops.

The structure and installation position of the existing damping device are shown in fig. 1 and fig. 2, a first rotating shaft 140 is arranged between the upper cover 100 and the pan body 120, two torsion springs 180 and a driving structure 160 located between the two torsion springs 180 are sleeved on the first rotating shaft 140, and the damping device 200 is arranged on the pan body 120 and is independent with respect to the first rotating shaft 140. The damper device 200 includes an operating member 201, a stationary member 202, a second rotating shaft 203, and an annular cover 204. The static part 202 is arranged in the action part 201, the static part 202 and the annular cover 204 are all sleeved on the second rotating shaft 203, and the second rotating shaft 203 is arranged on the pot body 120. Two ends 181 of the torsion spring 180 are respectively installed on the upper cover 100 and the pot body 120, and the first rotating shaft 140 drives the driving structure 160 to rotate when the upper cover 100 is opened. The driving structure 160 is a gear engaged with the convex teeth 201a on the outer side of the operating member 201. When the driving structure 160 rotates, the driving structure 160 drives the actuating member 201 to move together, when the actuating member 201 rotates until the inner rib of the actuating member 201 abuts against the rib on the outer wall of the stationary member 202, the stationary member 202 starts to prevent the actuating member 201 from rotating, and then the actuating member 201 also starts to prevent the driving structure 160 from rotating, and the driving structure 160 transmits the blocking force to the torsion spring 180 through the first rotating shaft 140, so as to slow down the moving speed of the upper cover 100 until the movement is stopped.

The drawbacks of this structure include: 1. the driving structure 160 is required to transmit the thrust of the torsion spring 180 to the damping device 200, the driving structure 160 and the action member 201 are required to be processed into meshed gear structures, an independent second rotating shaft 203 is required to be added, the number of required parts is large, and the processing cost is high, the assembly workload is large and the occupied space is large; in addition, the reaction force of the damping device 200 cannot directly act on the first rotating shaft 140, so that the damping device 200 cannot rapidly damp the first rotating shaft 140, and the reaction force of the damping device 200 is lost in an intermediate transmission link, thereby affecting the damping effect; 2. the convex edges on the outer wall of the static part 202 and the convex edges on the inner wall of the action part 201 are extruded to generate reaction, so that the deformation space is limited; when the materials such as rubber and the like are used for preparing the convex edges, the generated reaction force is small, and the damping effect is poor.

Disclosure of Invention

One object of the present invention is to provide a damping device which requires few parts and has a high force transmission efficiency.

Another object of the invention is to propose a device with low cost and high braking efficiency when the upper cover is opened.

To achieve the purpose, on one hand, the invention adopts the following technical scheme:

a damping device comprises an outer shell cover used for installation and fixation, a sealing cover used for enclosing a closed space with the outer shell cover, an elastic sheet arranged in the outer shell cover and an inner core used for transmitting a rotating force with a hinged shaft; the spring plate comprises an elastic part and a blocking part, an inner core lug is arranged on the outer wall of the inner core, when the inner core rotates to a set position, the inner core lug abuts against the blocking part, and the elastic part provides elastic force for the blocking part so as to reduce the rotating speed of the inner core.

Particularly, the elastic sheet is of a bent sheet structure, the blocking part is positioned in the middle, and the elastic parts are positioned on two sides of the blocking part; or the elastic part is positioned in the middle, and the blocking part is positioned at two sides of the elastic part.

Particularly, a window is formed in the side wall of the outer shell cover, and the elastic sheet is at least partially positioned in the window after installation.

Particularly, the shell cover is provided with a clamping groove for mounting the elastic sheet.

Furthermore, a window is formed in the side wall of the outer shell cover, and the clamping groove extends to the window.

Particularly, the cross section of the clamping groove is in a curve shape; one end of the clamping groove is communicated to the window, and the other end of the clamping groove is located on the end face of the opening end of the outer shell cover.

Particularly, the shape of the clamping groove is matched with that of the elastic sheet.

In particular, the housing cover is provided with a fixing portion.

Particularly, an inner core shaft hole for penetrating the articulated shaft is formed in the inner core, and the inner core shaft hole is semicircular or polygonal.

On the other hand, the invention adopts the following technical scheme:

a device comprising the damping device comprises a first body and a second body connected by a hinge shaft, an outer casing is fixed on the first body or the second body, and the hinge shaft penetrates through an inner core.

Particularly, the device is a cooking appliance, one of the first body and the second body is a pot cover, and the other is a pot body; the damping device is installed on the hinge shaft.

When the inner core of the damping device rotates to the set position, the inner core lug abuts against the blocking part of the elastic sheet, and the elastic part of the elastic sheet provides elastic force for the blocking part to block the inner core from continuing rotating, so that the whole structure is simplified, fewer parts are required, the cost is reduced, and the size of the device is reduced; the inner core is directly sleeved on the hinge shaft, so that the force is transmitted more directly, timely and efficiently, and the loss of force in the transmission process is avoided; the elastic sheet provides resistance, so that the deformation space is larger and the elasticity is larger.

The device comprises the damping device, the damping device is directly arranged on the hinged shaft, the force is transmitted more directly, timely and efficiently, the number of required parts is small, the cost is reduced, and the size is reduced.

Drawings

FIG. 1 is a schematic view of a conventional electric rice cooker;

FIG. 2 is an exploded view of a prior art damping device;

FIG. 3 is a schematic structural diagram of a damping device according to an embodiment of the present invention;

FIG. 4 is an exploded view of a damping device provided in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a spring plate according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of an inner core provided in accordance with an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an enclosure cover according to an embodiment of the present invention.

In the figure:

1. a housing cover; 2. sealing the cover; 3. a spring plate; 4. an inner core; 11. a fixed part; 12. a positioning column; 13. a housing cover shaft hole; 14. a window; 15. a card slot; 21. closing and covering the shaft hole; 31. an elastic part; 32. a blocking portion; 41. an inner core bump; 42. an inner core shaft hole; 100. an upper cover; 120. a pan body; 140. a first rotating shaft; 160. a drive structure; 180. a torsion spring; 181. a tip; 200. a damping device; 201. an actuation member; 201a, convex teeth; 202. a stationary member; 203. a second rotating shaft; 204. an annular cover.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The invention provides a damping device and a device comprising the same, such as a cooking appliance, more particularly an electric cooker. The device comprises a first body and a second body which are connected through a hinged shaft, an outer shell cover is fixed on the first body or the second body, and a damping device is installed on the hinged shaft. When the device is an electric cooker, the electric cooker comprises an upper cover, a cooker body, a hinged shaft and a damping device, wherein the semicircular or polygonal hinged shaft is arranged between the upper cover and the cooker body, and the damping device is arranged on the hinged shaft and fixed on the cooker body. Drive the articulated shaft and rotate around the axis when the upper cover opens, the articulated shaft rotates and provides the slew velocity of resistance in order to slow down the articulated shaft for damping device behind the settlement position.

As shown in fig. 3 and 4, the damping device comprises an outer casing cover 1 for mounting and fixing, a cover 2 for enclosing a closed space with the outer casing cover 1, a spring sheet 3 arranged in the outer casing cover 1, and a core 4 for transmitting a rotational force with a hinge shaft; the spring plate 3 comprises an elastic part 31 and a blocking part 32, an inner core convex block 41 is arranged on the outer wall of the inner core 4, when the inner core 4 rotates to a set position, the inner core convex block 41 abuts against the blocking part 32, and the elastic part 31 provides elastic force for the blocking part 32 so as to reduce the rotating speed of the inner core 4. The spring plate 3 may be made of a metal material.

The damping device is directly arranged on the articulated shaft, so that the whole structure is simplified, the required parts are few, the cost is reduced, and the volume of the electric cooker is reduced; the inner core 4 is directly sleeved on the hinge shaft, so that the force is transmitted more directly, timely and efficiently, and the loss of force in the transmission process is avoided. The elastic sheet 3 is used for providing resistance, so that the elastic deformation capacity is stronger, and the resistance can be provided; the elastic sheet 3 is detachably arranged on the outer shell cover 1, and the elastic sheet 3 can be replaced by a new elastic sheet 3 when the elastic sheet 3 is deformed or insufficient in elasticity due to repeated use, so that the whole damping device is not required to be replaced, the use cost is further reduced, and the service life is prolonged.

In order to facilitate the assembly and disassembly of the elastic sheet 3 and leave enough deformation space for the elastic sheet 3, a window 14 is formed in the side wall of the shell cover 1, and the elastic sheet 3 is at least partially positioned in the window 14 after the installation. Namely, a part of the elastic sheet 3 protrudes out of the inner wall surface of the outer shell cover 1 and is used for being contacted with and extruded by the inner core convex block 41 on the inner core 4 to generate resistance; the other part is positioned in the window 14 and deforms towards the direction of the outer wall surface of the housing cover 1, and the deformed part provides elastic force for the part of the elastic sheet 3 structure protruding out of the inner wall surface of the housing cover 1.

After the elastic sheet 3 is installed in place, the window 14 can be filled with filling glue, so as to prevent the substance in the closed space enclosed by the housing cover 1 and the sealing cover 2 from leaking.

The specific installation mode of the elastic sheet 3 is not limited, preferably, a clamping groove 15 for installing the elastic sheet 3 is arranged on the outer shell cover 1, the clamping groove 15 extends to the window 14, and the elastic sheet 3 is inserted along the clamping groove 15 until reaching a specified position, where the elastic sheet 3 will be blocked on the running route of the inner core convex block 41.

The cross section of the clamping groove 15 is in a curve shape, preferably, the shape of the clamping groove 15 is matched with that of the elastic sheet 3, and the situation that the size of the elastic force changes due to the change of the shape of the elastic sheet 3 is avoided. One end of the clamping groove 15 is communicated with the window 14, and the elastic sheet 3 can enter the area of the window 14 by being pushed to the bottom along the clamping groove 15; the other end is positioned on the end surface of the opening end of the outer shell cover 1, and the elastic sheet 3 is more convenient to disassemble and assemble.

As shown in fig. 5, the elastic sheet 3 is a bent metal sheet structure, and generates an elastic force by elastic deformation. The specific structure of the spring plate 3 is two, one is shown in fig. 5, the blocking portion 32 is located in the middle, the elastic portion 31 is located on two sides of the blocking portion 32, the elastic portion 31 is clamped in the clamping groove 15 after installation, and the blocking portion 32 protrudes towards the inside of the inner wall surface of the housing cover 1; in another (not shown) embodiment, the elastic portion is located in the middle, the blocking portions are located on two sides of the elastic portion, the two blocking portions protrude out of the inner wall surface of the outer shell cover 1 after installation, the elastic portion is fixed in the window 14, and the two blocking portions can block the inner core protrusion 41 twice.

As shown in fig. 6, the main body of the inner core 4 is a hollow tubular structure, a plate-shaped structure is disposed at a position close to the middle part in the tube, a semicircular or polygonal inner core shaft hole 42 is formed in the plate-shaped structure, and a hinge shaft having a semicircular or polygonal cross section passes through the inner core shaft hole 42, and when the hinge shaft rotates around the axis, the inner core 4 is driven to rotate in the same direction.

Fig. 7 shows the three-dimensional structure of the housing shell 1, the window 14 and the locking groove 15 not being shown in fig. 7 for reasons of view limitation and simplified line drawing. As shown in fig. 7, the outer housing 1 is a barrel-shaped structure with an opening at one end, a positioning post 12 is arranged on the bottom surface of the outer housing 1, and the tubular inner core 4 is sleeved on the positioning post 12 after installation, so that the inner core 4 and the outer housing 1 are coaxial, the distance between the outer wall of the inner core 4 and the inner wall of the outer housing 1 is ensured to be equal within the range of 360 degrees, and the contact or extrusion degree between the elastic pieces 3 in different directions and the inner core convex blocks 41 is the same.

The positioning column 12 is provided with an outer casing shaft hole 13 for penetrating the hinge shaft, the sealing cover 2 is provided with a sealing cover shaft hole 21 (shown in fig. 3 and 4) for penetrating the hinge shaft, and the sealing cover shaft hole 21 is aligned with the outer casing shaft hole 13. Be provided with fixed part 11 on outer clamshell 1, fixed part 11 fixed mounting is on the pot body, avoids outer clamshell 1 to follow the articulated shaft and rotates. The cross section of the fixing part 11 is U-shaped, so that the weight and the cost are reduced under the conditions of ensuring firm installation and enough strength.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A damping device is characterized by comprising an outer shell cover (1) used for installation and fixation, a sealing cover (2) used for enclosing with the outer shell cover (1) to form a closed space, an elastic sheet (3) arranged in the outer shell cover (1) and an inner core (4) used for transmitting a rotating force with a hinged shaft; the spring plate (3) comprises an elastic part (31) and a blocking part (32), an inner core convex block (41) is arranged on the outer wall of the inner core (4), when the inner core (4) rotates to a set position, the inner core convex block (41) abuts against the blocking part (32), and the elastic part (31) provides elastic force for the blocking part (32) to reduce the rotating speed of the inner core (4);

a clamping groove (15) for mounting the elastic sheet (3) is formed in the outer shell cover (1), a window (14) is formed in the side wall of the outer shell cover (1), and the cross section of the clamping groove (15) is in a curve shape; one end of the clamping groove (15) is communicated to the window (14), and the other end of the clamping groove is located on the end face of the opening end of the outer shell cover (1).

2. A damping device according to claim 1, characterized in that the spring plate (3) is a bent sheet-like structure, the blocking portion (32) is located in the middle, and the elastic portions (31) are located on both sides of the blocking portion (32); or the elastic part is positioned in the middle, and the blocking part is positioned at two sides of the elastic part.

3. A damping device according to claim 1, characterized in that a window (14) is provided in the side wall of the housing shell (1), the spring plate (3) being at least partially located in the window (14) after mounting.

4. Damping device according to claim 1, characterized in that the shape of the clamping groove (15) is adapted to the shape of the spring plate (3).

5. A damping device according to one of claims 1 to 3, characterised in that a fastening (11) is provided on the housing shell (1).

6. A damping device according to any one of claims 1 to 3, characterized in that an inner core shaft hole (42) for passing through the hinge shaft is formed in the inner core (4), and the inner core shaft hole (42) is semicircular or polygonal.

7. A device comprising a damping device according to any one of claims 1 to 6, comprising a first body and a second body connected by an articulation axis, the outer casing (1) being fixed to the first body or to the second body, the articulation axis passing through the inner core (4).

8. The apparatus of claim 7, wherein the apparatus is a cooking appliance, one of the first body and the second body is a lid, and the other is a pot; the damping device is installed on the hinge shaft.