CN108158416B

CN108158416B - Damping device and device comprising the same

Info

Publication number: CN108158416B
Application number: CN201810015402.7A
Authority: CN
Inventors: 林康桂; 陈群; 左双全; 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: 2020-10-09
Anticipated expiration: 2038-01-08
Also published as: CN108158416A

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 that the existing damping device is complex in structure, the damping force value is difficult to accurately control and the like. The damping device comprises a shell cover for mounting and fixing, a sealing cover for enclosing a closed space with the shell cover, a torsion spring arranged in the shell cover and an inner core for transmitting rotating force with a hinged shaft; the torsion spring comprises two end heads, one end head is arranged on the shell cover, and the other end head is arranged on the inner core; when the inner core rotates, the torsion spring is elastically deformed, and the torsion spring applies deformation force to the inner core to reduce the rotating speed of the inner core. The damping device and the device comprising the damping device have the advantages of simpler structure, easier assembly and production, longer service life and easier and more accurate resistance adjustment.

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; 2. the damping force obtained by extruding the viscous liquid in the action part 201 through the convex ribs on the inner wall of the action part 201 and the convex ribs on the outer wall of the static part 202 is small, and the damping effect on the opening of the upper cover is limited; and the magnitude of the damping force is not easy to be accurately controlled.

Disclosure of Invention

One object of the present invention is to provide a damping device with simple structure and accurate control of damping force value.

Another object of the invention is to propose a device with easier and more accurate damping force adjustment.

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, a torsion spring arranged in the outer shell cover and an inner core used for transmitting a rotating force with a hinged shaft; the torsion spring comprises two end heads, one end head is arranged on the shell cover, and the other end head is arranged on the inner core; when the inner core rotates, the torsion spring generates elastic deformation, and the torsion spring applies deformation force to the inner core so as to reduce the rotating speed of the inner core.

Particularly, the inner core comprises an outer barrel and an inner barrel which are sleeved, an accommodating space is formed between the inner wall of the outer barrel and the outer wall of the inner barrel, and at least part of the torsion spring is located in the accommodating space.

Further, when elastic deformation does not occur, the diameter of the torsion spring is larger than that of the inner barrel and smaller than that of the outer barrel.

Particularly, an installation bayonet is formed on the outer cylinder, and one end of the torsion spring is clamped in the installation bayonet.

Particularly, the outer shell cover is of a barrel-shaped structure with one open end, a positioning column is arranged on the bottom surface of the outer shell cover, and the inner core is sleeved on the positioning column after installation.

Further, offer the shell cover shaft hole that is used for wearing to establish the articulated shaft on the reference column, be provided with the closing cap shaft hole that is used for wearing to establish the articulated shaft on the closing cap, the closing cap shaft hole with shell cover shaft hole aligns.

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, a housing cover being fixed to the first body or the second body.

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.

One end of the torsion spring of the damping device is arranged on the shell cover, the other end of the torsion spring is arranged on the inner core, when the inner core rotates, the torsion spring generates elastic deformation to reduce the rotating speed of the inner core, the damping effect is realized, the structure is simpler, the assembly and the production are easier, the service life is longer, and the resistance adjustment is easier.

The device comprises the damping device, provides damping force for the hinge shaft by utilizing the elastic deformation capacity of the torsion spring, is convenient to use, and is easier and more accurate to adjust the damping force.

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

FIG. 4 is a schematic structural view of an inner core provided in accordance with an embodiment of the present invention;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic structural diagram of a torsion spring according to 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 torsion spring; 4. an inner core; 11. a fixed part; 12. a positioning column; 13. a housing cover shaft hole; 14. a support point; 21. closing and covering the shaft hole; 31. a tip; 41. an outer cylinder; 42. an inner core shaft hole; 43. an inner barrel; 44. an accommodating space; 45. installing a bayonet; 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 present invention provides a damping device and a device including the same, the device including a first body and a second body connected by a hinge shaft having a non-circular cross section, a housing cover of the damping device being fixed to the first body or the second body and the damping device being mounted on the hinge shaft. When the device is a cooking appliance such as an electric cooker, one of the first body and the second body is a cooker cover, and the other is a cooker body.

As shown in fig. 3, the damping device comprises an outer shell 1, a cover 2, a torsion spring 3 and an inner core 4, wherein the inner core 4 is installed in the outer shell 1, the torsion spring 3 is sleeved on the inner core 4, the cover 2 covers the open end of the outer shell 1, and the cover 2 and the outer shell 1 enclose a closed space. The housing shell 1 is provided with a fixing portion 11 for fixedly mounting the damping device on a cooking appliance or the like. The inner core 4 has a function of transmitting a rotation force with the hinge shaft in addition to the installation of the torsion spring 3.

During the use, when devices such as pot cover open the articulated shaft drives inner core 4 rotatory, take place pivoted in-process torsional spring 3 by the axis for outer housing cover 1 at inner core 4 and compressed (external force is the same with the winding direction of torsional spring 3) or push up (external force is opposite with the winding direction of torsional spring 3) and take place elastic deformation, can exert the effort to inner core 4 when torsional spring 3 takes place elastic deformation, and this effort is promptly for preventing devices such as pot cover to open too fast damping force.

The torsion spring 3 is used for providing damping force, and the resistance value can be accurately controlled by adjusting the number of turns of the torsion spring 3; in addition, the torsional spring 3 is more convenient to disassemble and assemble, and the torsional spring 3 can be replaced when the damping force is insufficient due to long-time use, so that the whole damping device does not need to be replaced. Therefore, the damping device has the advantages of simpler structure, easier assembly and production, higher qualification rate, lower price, smaller volume, longer service life and easier resistance adjustment.

As shown in fig. 4 and 5, the inner core 4 includes an outer cylinder 41 and an inner cylinder 43 connected together, and the longitudinal section of the structure formed by the outer cylinder 41 and the inner cylinder 43 is U-shaped. The inner cylinder 43 is sleeved inside the outer cylinder 41, the inner cylinder 43 is higher than the outer cylinder 41, and an accommodating space 44 is formed between the inner wall of the outer cylinder 41 and the outer wall of the inner cylinder 43. The torsion spring 3 is sleeved on the inner cylinder 43 at the position higher than the end of the outer cylinder 41 from the inner cylinder 43, and at least part of the torsion spring 3 is positioned in the accommodating space 44. When the elastic deformation does not occur, the diameter of the torsion spring 3 is larger than that of the inner cylinder 43 and smaller than that of the outer cylinder 41; after elastic deformation, the torsion spring 3 contracts until it is tightly wound on the outer wall of the inner cylinder 43 or expands until it is tightly adhered to the inner wall of the outer cylinder 41.

The specific installation manner of the torsion spring 3 is not limited. Preferably, as shown in fig. 4, a groove-shaped mounting notch 45 is formed in the outer cylinder 41. As shown in fig. 6, the torsion spring 3 includes two ends 31, one end 31 being mounted on the housing cover 1, and the other end 31 being mounted on the core 4. One end 31 of the torsion spring 3 is caught in the mounting bayonet 45 and the other end 31 is mounted on a support point 14 (shown in fig. 7) on the inner wall of the housing cover 1.

The main body of the inner cylinder 43 is a hollow tubular structure, a plate-like structure is provided at a position near the middle part in the tube, a semicircular or polygonal inner core shaft hole 42 is provided on the plate-like structure, a hinge shaft having a semicircular or polygonal cross section passes through the inner core shaft hole 42, and the hinge shaft drives the inner core 4 to rotate in the same direction when rotating around the axis.

As shown in fig. 7, the housing cover 1 is a barrel-shaped structure with one end open, and a positioning column 12 is disposed on the bottom surface of the housing cover 1. After installation, the inner core 4 is sleeved on the positioning column 12, the inner core 4 and the outer shell cover 1 are coaxial, and the distance between the outer wall of the inner core 4 and the inner wall of the outer shell cover 1 is equal in the range of 360 degrees.

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 (as shown in fig. 3) for penetrating the hinge shaft, and the sealing cover shaft hole 21 is aligned with the outer casing shaft hole 13. The outer housing cover 1 is provided with a fixing part 11, and the fixing part 11 is fixedly installed on a pot body and other devices to prevent the outer housing cover 1 from rotating along with the hinged shaft. 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. The 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, a torsion spring (3) arranged in the outer shell cover (1) and an inner core (4) used for transmitting rotating force with a hinged shaft; the torsion spring (3) comprises two end heads (31), one end head (31) is installed on the outer shell cover (1), and the other end head (31) is installed on the inner core (4); when the inner core (4) rotates, the torsion spring (3) is elastically deformed, and the torsion spring (3) applies deformation force to the inner core (4) to reduce the rotating speed of the inner core (4);

the inner core (4) including urceolus (41) and inner tube (43) that the cover was established, the inner wall of urceolus (41) with form accommodation space (44) between the outer wall of inner tube (43), torsional spring (3) at least part is located in accommodation space (44).

2. A damping device according to claim 1, characterized in that the diameter of the torsion spring (3) is larger than the diameter of the inner cylinder (43) and smaller than the diameter of the outer cylinder (41) when not elastically deformed.

3. A damper device according to claim 1, wherein a mounting bayonet (45) is formed on the outer cylinder (41), and one of the tips (31) of the torsion spring (3) is caught in the mounting bayonet (45).

4. A damping device according to any one of claims 1 to 3, wherein the outer housing cover (1) is a barrel-shaped structure with an open end, a positioning post (12) is arranged on the bottom surface of the outer housing cover (1), and the inner core (4) is sleeved on the positioning post (12) after being installed.

5. The damping device according to claim 4, characterized in that the positioning column (12) is provided with a housing cover shaft hole (13) for passing the hinge shaft, the cover (2) is provided with a cover shaft hole (21) for passing the hinge shaft, and the cover shaft hole (21) is aligned with the housing cover shaft hole (13).

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

7. 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.

8. A device comprising a damping device according to one of claims 1 to 7, comprising a first body and a second body connected by an articulated shaft, a housing cover (1) being fixed to the first body or to the second body.

9. The apparatus of claim 8, 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.