CN108185806B - Damping structure and device including the same - Google Patents

Abstract

The invention discloses a damping structure and a device comprising the same, belongs to the technical field of damping, and is designed for solving the problems of poor damping effect and the like of the existing damping structure. The damping structure provided by the invention comprises an outer shell and an inner core nested in the outer shell, wherein a first friction piece is arranged on the inner wall of the outer shell, and a second friction piece is arranged on the outer wall of the inner core; one of the outer shell cover and the inner core is used for being fixed on the first body, the other one of the outer shell cover and the inner core is used for being driven by the second body to rotate, and the first friction piece and the second friction piece rub against each other during at least part of the relative rotation of the outer shell cover and the inner core. The damping structure provided by the invention has the advantages of more stable structure, longer service life, capability of avoiding the problems of humpback and jumping existing in the existing cooking utensil as much as possible, good damping effect and user experience, simple structure, easiness in assembly and production, low cost and small volume.

Description

Damping structure and device including the same

technical field

The present invention relates to the technical field of damping, and in particular, to a damping structure and a device including the damping structure.

Background technique

Cooking utensils, such as rice cookers, electric pressure cookers, etc. usually include a pot body and a pot cover. The pot cover is connected to the pot body through a rotating shaft. Several torsion springs are sleeved on the rotating shaft. The two legs of the torsion spring are in contact with the pot body and the pot cover. . In order to prevent the whole machine from jumping and shaking due to the excessive elasticity of the torsion spring, a rubber damping block is usually set between the pot body and the lid. control.

However, because the rubber damping block is prone to thermal expansion and contraction due to heat, and after a period of use, the surface of the rubber damping block is squeezed for a long time to cause surface damage, which makes the pot cover hunchback and jumping, and the damping effect and the user's use effect are extremely poor. .

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a damping structure with good damping effect and a device including the damping structure.

For this purpose, on the one hand, the present invention adopts the following technical solutions:

A damping structure comprises an outer cover and an inner core nested in the outer cover, the inner wall of the outer cover is provided with a first friction piece, and the outer wall of the inner core is provided with a second friction piece; One of the outer cover and the inner core is used to be fixed on the first body, and the other is used to rotate under the driving of the second body. During at least part of the relative rotation of the outer cover and the inner core, the The first friction member and the second friction member rub against each other.

Further, the first friction member is an elastic member, and the second friction member is a protrusion.

Further, the elastic member is an elastic sheet.

Further, the elastic piece is arc-shaped, and the elastic piece protrudes in a direction away from the inner wall of the housing cover.

Further, one end of the elastic piece is connected to the inner wall of the outer cover, and the other end is suspended.

Further, an opening is provided on the outer cover, and one end of the elastic sheet is connected to the side wall of the opening.

Further, the outer cover includes a hollow cover body with an open end and an end cover arranged at the open end of the cover body, and at least one of the bottom surface of the cover body and the inner wall surface of the end cover is provided with a cover. A positioning column, the inner core is sleeved on the positioning column after installation.

Further, the inner core is provided with a first through hole along its height direction, and the two ends of the outer cover are respectively provided with a second through hole at the position corresponding to the first through hole, and the first through hole and The second through hole is used for the shaft to pass through, and the inner core and the shaft cannot rotate relative to each other.

Further, a fixing mechanism is provided on the outer wall of the outer cover, and the fixing mechanism is used for fixing the to-be-connected piece.

Further, at least one ring of annular flanges is provided on the outer wall of the end cover, and the outer wall of the annular flange is in abutment with the inner wall of the cover body.

Further, lubricating fluid is provided between the first friction member and the second friction member.

On the other hand, the present invention adopts the following technical solutions:

A device comprising the damping structure described in any of the above, comprising a first body and a second body rotatably connected by a rotating shaft, the first body is fixed to the outer cover or the inner core, and the second body is The inner core and the outer cover can be driven to rotate relative to each other through the rotating shaft.

Further, the device is a cooking utensil, and one of the first body and the second body is a pot cover and the other is a pot body.

The beneficial effects of the present invention are as follows:

The damping structure provided by the present invention realizes damping through friction between the first friction piece on the inner wall of the outer cover and the second friction piece on the outer wall of the inner core, the structure is more stable, the service life is longer, and the existing The hunchback and jumping problems of the cooking utensil in the process of opening the cover have good damping effect and user experience, and have simple structure, easy assembly and production, low cost and small volume.

Description of drawings

1 is a schematic structural diagram of a damping structure provided by an embodiment of the present invention;

2 is one of the schematic diagrams of the exploded structure of the damping structure provided by the embodiment of the present invention;

3 is the second schematic diagram of the exploded structure of the damping structure provided by the embodiment of the present invention;

4 is a side view of the damping structure provided by the embodiment of the present invention after removing the end cover;

FIG. 5 is a schematic structural diagram of an outer cover provided by an embodiment of the present invention.

In the picture:

1. Outer cover; 2. Inner core; 3. First friction piece; 4. Second friction piece; 5. Fixing mechanism; 11. Cover body; 12. End cover; 13. Ring flange; hole; 15. positioning column; 21. first through hole.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

Embodiments of the present invention provide a damping structure and a cooking utensil using the damping structure, so as to avoid the hunchback and jumping problems of existing cooking utensils when the lid is opened, and improve the damping effect and user experience. The cooking appliance is preferably, but not limited to, a rice cooker or an electric pressure cooker.

The cooking utensil (not shown in the figure) provided in this embodiment includes a pot body, a pot cover, a rotating shaft, a torsion spring and the above-mentioned damping structure. The pot cover is rotatably connected to the pot body through the rotating shaft to open or close the pot body. On the rotating shaft, the two legs of the torsion spring are respectively in contact with the pot body and the pot cover. Wherein, the number of torsion springs is preferably, but not limited to, at least two, and can also be set to one or more than two according to specific needs.

As shown in FIGS. 1 to 3 , the damping structure includes an outer cover 1 and an inner core 2 nested in the outer cover 1 , and the outer cover 1 and the inner core 2 can rotate relative to each other. One of the pot cover and the pot body is fixed to the outer cover 1 or the inner core 2, and the other can drive the inner core 2 and the outer cover 1 to rotate relative to each other through the above-mentioned rotating shaft.

Please continue to refer to FIG. 2 and FIG. 3 , the outer cover 1 and the inner core 2 are preferably, but not limited to, substantially cylindrical. In order to facilitate the assembly and use of the damping structure, the outer cover 1 includes a hollow cover body 11 with one end open and an end cover 12 disposed at the open end of the cover body 11 . Positioning posts 15 are respectively provided. After installation, both ends of the inner core 4 are respectively sleeved on the two positioning posts 15 . Of course, it is understandable that only disposing the positioning post 15 on the bottom surface of the cover main body 11 or only on the inner wall surface of the end cover 12 is also an alternative implementation of this embodiment. In order to make the overall structure more stable, at least one ring of annular flanges 13 is provided on the outer wall of the end cover 12 , and the outer wall of the annular flange 13 is in abutment with the inner wall of the cover main body 11 . Understandably, the shapes of the outer cover 1 and the inner core 2 are not limited to this, as long as the inner core 2 is sleeved in the outer cover 1 and the inner core 2 and the outer cover 1 can rotate relative to each other.

Please continue to refer to FIG. 2 and FIG. 3 in conjunction with FIG. 4 , the inner wall of the outer cover 1 is provided with a first friction piece 3 , and the outer wall of the inner core 2 is provided with a second friction piece 4 ; the outer cover 1 and the inner core 2 are opposite to each other. During at least part of the rotation, the first friction member 3 and the second friction member 4 rub against each other. The first friction member 3 and the second friction member 4 rotate and rub against each other, which generates a force that hinders the relative rotation of the outer cover 1 and the inner core 2, thereby hindering the relative rotation between the pot cover and the pot body, so that the pot cover will not rotate during the opening process. Movement is more gentle. The outer cover 1 , the inner core 2 , the first friction member 3 and the second friction member 4 are respectively preferably but not limited to be made of metal or plastic material. The number of the first friction member 3 and the second friction member 4 may be one or more, for example, the number of the first friction member 3 and the second friction member 4 is two, and the two first friction members 3 are symmetrical Distributed on the inner wall of the outer shell 1 , the two second friction members 4 are symmetrically distributed on the outer wall of the inner core 2 . In order to reduce the wear of the first friction member 3 and the second friction member 4 , a lubricating liquid is preferably provided between the first friction member 3 and the second friction member 4 .

As a specific embodiment, the damping structure is installed in the following way: the inner core 2 is sleeved on the above-mentioned rotating shaft and can rotate together with the rotating shaft, and the outer cover 1 is fixed on the pot body. More specifically, please refer to FIGS. 1 to 4 again, the outer wall of the outer cover 1 is provided with a fixing mechanism 5 for fixing with the pot body; the inner core 2 is provided with a first through hole 21 along its height direction, and the outer wall of the outer cover 1 is provided with a first through hole 21 along its height direction. Two through holes 14 are respectively provided at the positions of the two ends corresponding to the first through holes 21. Specifically, the positioning posts 15 on the bottom surface of the cover body 11 and the positioning posts 15 on the inner wall surface of the end cover 12 are respectively provided with second through holes. 14. The first through hole 21 and the second through hole 14 are used for the above-mentioned rotating shaft to pass through, and the inner core 2 and the rotating shaft cannot rotate relative to each other. The structure of the fixing mechanism 5 is not particularly limited, as long as there is no relative movement between the outer cover 1 and the pot body. For example, the fixing mechanism 5 is a protrusion that can be inserted into the corresponding slot on the pot body. The first through holes 21 can be arranged in the following manner: the inner core 2 is a hollow tubular structure, a plate-like structure is arranged in the tube near the middle, and the first through-holes 21 are opened on the plate-like structure, and the first through holes 21 The cross section is preferably, but not limited to, a D-shaped or polygonal shape. During the process of opening or closing the lid, the inner core 2 is driven to rotate by the rotating shaft, and at the same time, the first friction member 3 and the second friction member 4 rotate and rub against each other, which hinders the relative rotation of the inner core 2 and the outer cover 1. resistance.

In order to make the damping effect more stable, the first friction member 3 is an elastic member, and the second friction member 4 is a protrusion. The protrusions taper smoothly away from the inner core 2 . The protrusion can abut against the outer surface of the elastic member and rotate from the outer surface of the elastic member. During the process of friction between the protrusion and the elastic member, the elastic member is squeezed and deformed, thereby generating an elastic force that prevents the protrusion from continuing to rotate, and can pass through the elastic member. Different amounts of deformation produce different resistances.

In order to further ensure the damping effect, simplify the structure and facilitate processing, as shown in Figure 5, the elastic member is a shrapnel. The elastic pieces are preferably arc-shaped, and the elastic pieces protrude in a direction away from the inner wall of the housing cover 1 . In order to ensure that the elastic sheet can provide sufficient elastic force and further reduce the wear of the damping structure, one end of the elastic sheet is connected to the inner wall of the housing cover 1, and the other end is suspended. In order to facilitate processing, an opening is provided on the housing cover 1, one end of the elastic piece is connected to the side wall of the opening, and the other end is suspended.

The working principle of the damping structure provided in this embodiment:

When the pot lid is opened, the pot lid drives the inner core 2 to rotate through the rotating shaft. At the same time, the protrusions and the shrapnel rotate and rub against each other. Different resistances can be generated through different deformation amounts, thereby hindering the relative rotation between the pot cover and the pot body, so that the movement of the pot cover during the opening process is smoother.

The damping structure provided in this embodiment realizes damping through friction between the first friction member 3 on the inner wall of the outer shell 1 and the second friction member 4 on the outer wall of the inner core 2, and the structure is more stable and the service life is longer. The problem of hunchback and jumping existing in the opening process of the existing cooking appliance can be avoided as much as possible, the damping effect and user experience are good, and the structure is simple, the assembly and production are easy, the cost is low, and the volume is small.

It should be noted that, as an alternative embodiment, in this embodiment, the inner core 2 can also be fixed relative to the pot body. For example, the pot body is provided with an installation shaft, the inner core 2 is sleeved on the installation shaft, and the inner core 2 is connected to the pot body. The installation shafts cannot rotate relative to each other. During the process of opening or closing the pot cover, the outer casing 1 is directly or indirectly driven to rotate by the rotating shaft. In addition, the application of the damping structure provided in this embodiment is not limited to cooking utensils, but can also be applied to other devices that need buffering appropriately. The device includes a first body and a second body rotatably connected by a rotating shaft and a torsion spring, The first body is fixed with the outer cover 1 or the inner core 2 , and the second body can drive the inner core 2 and the outer cover 1 to rotate relative to each other through the rotating shaft.

The technical principle of the present invention has been described above with reference to the specific embodiments. These descriptions are only for explaining the principle of the present invention, and should not be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative efforts, and these methods will all fall within the protection scope of the present invention.

Claims (6)

1. A damping structure, characterized in that it comprises an outer cover (1) and an inner core (2) nested in the outer cover (1), wherein the inner wall of the outer cover (1) is provided with a first a friction piece (3), a second friction piece (4) is provided on the outer wall of the inner core (2); One of the outer cover (1) and the inner core (2) is used to be fixed on the first body, and the other is used to rotate under the driving of the second body, and the outer cover (1) and the inner core (2) are used for rotation. During at least part of the relative rotation of the core (2), the first friction member (3) and the second friction member (4) rub against each other; The first friction piece (3) is an elastic piece, and the second friction piece (4) is a protrusion; one end of the elastic piece is connected to the inner wall of the outer casing (1), and the other end is suspended; the An opening is provided on the outer cover (1), and one end of the elastic sheet is connected to the side wall of the opening; a lubricating fluid is arranged between the first friction member (3) and the second friction member (4) ; The elastic pieces are arc-shaped, and the elastic pieces protrude in a direction away from the inner wall of the outer casing (1). 2 . The damping structure according to claim 1 , wherein the outer cover ( 1 ) comprises a hollow cover main body ( 11 ) with one end open and an end cover ( 12), at least one of the bottom surface of the cover main body (11) and the inner wall surface of the end cover (12) is provided with a positioning column (15), and the inner core (2) is sleeved on the inner wall after installation. on the positioning post (15). 3 . The damping structure according to claim 1 , wherein the inner core ( 2 ) is provided with first through holes ( 21 ) along its height direction, and the two ends of the outer cover ( 1 ) correspond to the The positions of the first through holes (21) are respectively provided with second through holes (14), the first through holes (21) and the second through holes (14) are used for the shaft to pass through, and the inner There is no relative rotation between the core (2) and the shaft. 4 . The damping structure according to claim 1 , wherein a fixing mechanism ( 5 ) is provided on the outer wall of the outer casing ( 1 ), and the fixing mechanism ( 5 ) is used for fixing the to-be-connected piece. 5 . 5. A device comprising the damping structure according to any one of claims 1-4, characterized in that it comprises a first body and a second body rotatably connected by a rotating shaft, the first body and the outer cover ( 1) Or the inner core (2) is fixed, and the second body can drive the inner core (2) and the outer cover (1) to rotate relative to each other through the rotating shaft. 6 . The device according to claim 5 , wherein the device is a cooking utensil, and one of the first body and the second body is a pot cover and the other is a pot body. 7 .

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