CN114352146A

CN114352146A - Damping device for cover opening box

Info

Publication number: CN114352146A
Application number: CN202111611756.6A
Authority: CN
Inventors: 陈均
Original assignee: Jiaxing Hangong Automobile Fastener Co ltd
Current assignee: Jiaxing Hangong Automobile Fastener Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-15

Abstract

A damping device for an open-top box includes a rack, and a damper. The rack comprises a channel-shaped body. The trough-shaped body comprises an opening end and a closing upper end. The damper includes a housing, and a damping assembly. The housing includes a receiving cavity and an engaging tooth. The damping assembly includes a damping wheel, and a large gear drum. The damping wheel is used for providing damping and comprises an outer cylinder and an inner cylinder. And a circle of external driving teeth are arranged on the outer barrel. And a circle of inner driving teeth meshed with the outer driving teeth are arranged on the inner side wall of the large gear cylinder. The size of the accommodating cavity is larger than the diameter of the large gear cylinder in the arrangement direction of the opening end and the closing upper end, and a plurality of coupling teeth are arranged on the outer side wall of the large gear cylinder. The damping device can provide damping when being opened, has no damping function when being closed, and meets the living demands of people.

Description

Damping device for cover opening box

Technical Field

The invention relates to the technical field of damping, in particular to a damping device for a cover opening box.

Background

In some cases with lids, or some drawers, there are often many items contained therein, or even the entire case may be filled. The cover is arranged obliquely or downwards particularly, the cover can contain articles at the moment, when people open the cover, if the cover is opened too fast, the articles in the cover can be scattered, meanwhile, as the cover is generally closed, people usually do not know that the articles in the box are full, and generally open the cover quickly, the articles in the box or the cover can be scattered, and troubles are brought to life of people. In addition, when the lid is opened, the user is aware of the situation in the box or in the lid, and when it is desired to close, the lid can be quickly closed, so that no damping is required, which is not normally achieved with known damping devices, which either have no damping at all or have damping on or off,

disclosure of Invention

In view of the above, the present invention provides a damping device for an open-top box that can solve the above-mentioned problems.

A damping device for an open-cover box comprises a rack and a damper arranged on the rack in a penetrating mode. The rack comprises a channel-shaped body. The trough-shaped body comprises an opening end and a closing end opposite to the opening end. The damper comprises a shell which is arranged on the groove-shaped body in a penetrating mode and a damping component which is contained in the shell. The shell comprises an accommodating cavity and a group of meshing teeth arranged on one side facing the upper end. The damping assembly comprises a damping wheel and a large gear barrel sleeved and fixed on the damping wheel. The damping wheel is used for providing damping and comprises an outer cylinder and an inner cylinder inserted in the outer cylinder. And a circle of external driving teeth are arranged on the outer barrel. And a circle of inner driving teeth meshed with the outer driving teeth are arranged on the inner side wall of the large gear cylinder. The size of the accommodating cavity is larger than the diameter of the large gear cylinder in the arrangement direction of the opening end and the closing upper end, and a plurality of coupling teeth are arranged on the outer side wall of the large gear cylinder. When the damper moves from the closing end to the opening end, the coupling teeth of the large gear drum are coupled with the meshing teeth on the containing cavity to drive the outer drum to rotate relative to the inner drum. When the damper moves from the opening end to the closing end, the coupling teeth of the large gear cylinder are decoupled from the meshing teeth on the containing cavity so that the damping wheel can rotate freely.

Further, a plurality of the teeth are connected end to end.

Further, the lid is fully opened when the damper is located at the open end and is closed when the damper is located at the closed end.

Further, the damping wheel further comprises a pivot shaft arranged on the inner cylinder and arranged along the axial direction, and a pinion fixed on the pivot shaft and contained in the groove-shaped body.

Further, the trough-shaped body has a plurality of internal teeth provided on one side wall of the trough-shaped body, and the external teeth on the pinion gear are engaged with the internal teeth on the trough-shaped body.

Further, damping fluid is contained in the outer cylinder and the inner cylinder.

Further, the housing is provided with two through holes, and the groove-shaped body penetrates through the through holes to limit the damper between the housing and the groove-shaped body.

Further, the outer cylinder and the inner cylinder rotate mutually.

Furthermore, the damping device for the cover opening box further comprises a switch mechanism, the switch assembly comprises a propping piece and a switch assembly, the propping piece is arranged close to the upper end of the cover opening box, the switch assembly is fixedly arranged on the shell, and when the switch assembly props against the propping piece, the switch assembly is in a closed state.

Furthermore, the switch assembly comprises a shell, two electric plug connectors accommodated in the shell and an elastic abutting electric connector accommodated in the shell, and when the elastic abutting electric connector is electrically connected with the electric plug connectors, the two electric plug connectors are conducted.

Compared with the prior art, the rack in the damping device for the cover opening box is fixed on the box cover, the damper is fixed on the box body, and when the damper is positioned at the upper closing end and the box cover is pulled open, the coupling teeth of the large gear cylinder are coupled with the meshing teeth on the accommodating cavity to fix the large gear cylinder, so that the outer cylinder is fixed. At the moment, the inner cylinder can rotate under the driving of the rack, and meanwhile, as the damping liquid is arranged between the outer cylinder and the inner cylinder, the rotation between the outer cylinder and the inner cylinder can be pulled open only by the action of external force, so that the box can be pulled open only slowly, and the articles in the box are prevented from being discharged. When the damper is positioned at the opening end and covers the box cover, the coupling teeth of the large gear cylinder are decoupled from the meshing teeth on the accommodating cavity, so that the large gear cylinder can rotate along with the outer cylinder, damping cannot be generated between the outer cylinder and the inner cylinder, the damping wheel can freely rotate, and the box cover can be quickly closed. Therefore, the damping device for the cover-opening box provided by the invention can provide a damping function when the cover-opening box is opened and has no damping function when the cover-opening box is closed, so that the living requirements of people are met.

Drawings

Fig. 1 is a schematic assembly structure diagram of a damping device for an open-cover box according to the present invention.

Fig. 2 is a partially exploded view of the damping device for an open-top box of fig. 1.

Fig. 3 is a schematic structural view of a housing of the damping device for an open cover case of fig. 1.

Fig. 4 is a schematic structural view of a large gear drum included in the damper device for an open-top box of fig. 1.

Fig. 5 is a schematic structural view of a switch assembly provided in the damping device for an open-top box of fig. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to 5, which are schematic structural views of the damping device for an open-top box provided by the present invention. The damping device for the cover opening box comprises a rack 10, a damper 20 arranged on the rack in a penetrating way, and an opening and closing mechanism 30 arranged on the damper 20. It is conceivable that the damping device for an open-top box also comprises other functional modules, such as fixing devices for arranging the damping device for an open-top box on a box, electrical connection components, assembly components, etc., which are well known to those skilled in the art and will not be described in detail herein.

As is well known, the lid-opening box comprises a box body and a box cover, which are generally connected to the box body by hinges and will not be described in detail herein.

The rack 10 includes a channel-shaped body 11, and a plurality of internal teeth 12 provided on one side wall of the channel-shaped body 11. The channel-shaped body 11 is a channel-shaped structure for receiving a portion of the components of the damper 20, which will be described in detail below. The channel-shaped body 11 includes an open end 111, and an upper end 112 opposite the open end 111. The cover is fully opened when the damper 20 is positioned at the open end 111 and closed when the damper 20 is positioned at the closed end 112. The opening end 111 and the closing end 112 are only used for specifying positions, and do not have a particular structure. The internal teeth 12 are provided on an inner side wall of the groove-shaped body 11 for cooperation with a component of the damper 20 to perform a guiding function. The size and shape of the internal teeth 12 can be set according to actual needs and will not be described in detail.

The damper 20 includes a housing 21 inserted through the channel-shaped body 11, and a damper assembly 22 accommodated in the housing. The housing 21 includes a receiving cavity 211, a set of engaging teeth 212 disposed on a side facing the upper end 111, and two through holes 213 disposed on a sidewall of the receiving cavity 211. The accommodating cavity 211 is used for accommodating the damping element 22, but in order to achieve the engagement or disengagement state of the accommodating cavity 211 and the damping element 22, the size of the accommodating cavity 211 in the arrangement direction along the opening end 111 and the closing end 112 is larger than the maximum diameter of the damping element 22, that is, the diameter of the large gear cylinder. In order to limit the position of the damper element 22 in the direction perpendicular to the arrangement direction of the open end 111 and the upper end 112, the size of the receiving cavity 211 is equal to the maximum diameter of the damper element 22. Therefore, the damping member 22 can move only along the arrangement direction of the open end 111 and the upper end 112 and can not move along the arrangement direction perpendicular to the open end 111 and the upper end 112. Since the engaging teeth 212 are disposed toward the closed end 111, the engaging teeth 212 are engaged with the coupling teeth on the large gear cylinder of the damper assembly 22 only when the damper assembly 22 moves from the closed end 111 toward the open end 112. A first one of the meshing teeth 212 extends in a direction parallel to the axial direction of the large gear drum. The arrangement direction of the two through holes 213 is parallel to the arrangement direction of the open end 111 and the upper end 112, so that the moving direction of the damping element 22 is parallel to the arrangement direction of the open end 111 and the upper end 112. The size and shape of the through hole 213 should be set according to the size and shape of the groove-shaped body 11, and will not be described herein.

The damping assembly 22 includes a damping wheel 221 and a large gear cylinder 222 sleeved and fixed on the damping wheel 221. The damper wheel 221 is for providing damping and includes an outer cylinder 223, an inner cylinder 224 inserted in the outer cylinder 223, a pivot shaft 225 provided on the inner cylinder 224 and arranged in the axial direction, and a pinion 226 fixed to the pivot shaft 225 and received in the groove-shaped body 11. It is conceivable that the damping fluid is filled between the inner and

outer cylinders

224 and 223. Damping fluids are known per se, which rely on viscous drag of a liquid medium to damp the kinetic energy of a moving machine. Thus, the damping fluid may provide damping when there is relative movement between the inner and

outer barrels

224, 223, and may not provide damping when there is no relative movement between the inner and

outer barrels

224, 223. The outer side wall of the outer barrel 223 is provided with a ring of outer drive teeth 227 for engagement with the large gear barrel 222, as will be described in detail below. The inner cylinder 224 is inserted into the outer cylinder 223, and the specific structure can be set according to actual needs, which is not described herein again. The pivot shaft 225 extends axially from a side of the inner cylinder 224 facing away from the outer cylinder 223. The pinion 226 is fixed to the pivot 225 by any method known in the art, such as by a fastener such as a pin. The external teeth on the pinion 226 mesh with the internal teeth 12 on the trough-shaped body 11 to function as a guide.

The large gear cylinder 222 is a cylindrical structure and covers the damper wheel 221, and specifically, is disposed on one side of the inner cylinder 224 of the damper wheel 221, so as to further improve the assembly stability of the damper wheel 221. The inside wall of the large gear cylinder 222 is provided with a ring of inner driving teeth 228 engaged with the outer driving teeth 227 of the outer cylinder 223, and the outside wall of the large gear cylinder 222 is provided with a ring of coupling teeth 229 coupled with the engaging teeth 212 of the housing 21. When the coupling teeth 229 are engaged with the engagement teeth 212 on the housing 21, the large gear cylinder 222 will not rotate, and thus the outer cylinder 223 will not rotate, and the small gear 226 is engaged with the internal teeth on the rack 10, so when the rack 10 is pulled by external force, the rack 10 will drive the small gear 226 to rotate, and thus the inner cylinder 224 will be brought to rotate, but the outer cylinder 223 is fixed by the fixing action of the large gear cylinder 222, so that the inner cylinder 224 will move relative to the outer cylinder 223, however, the relative movement of the inner cylinder 224 and the outer cylinder 223 will be prevented due to the existence of the damping fluid, and thus the damping action is achieved, and the box cover can be pulled slowly. When the coupling teeth 229 are disengaged from the engagement teeth 212 on the housing 21, the large gear cylinder 222 can rotate together with the outer cylinder 223, so when the rack 10 is pulled by external force, the rack 10 will drive the pinion 226 to rotate, thereby bringing the inner cylinder 224 to rotate, and due to the existence of the damping fluid, the outer cylinder 223 will rotate together with the inner cylinder 224 at the same speed and in the same direction, thereby losing the effect of the damping wheel 221, so that the cover can be quickly closed, thereby meeting the requirement of people that when the cover needs to be opened, the cover can only be slowly opened, and when the cover needs to be closed, the cover can be quickly closed.

The switch mechanism 30 is used to switch a light source disposed in the case, i.e., the light source is turned on to illuminate the case when the case cover is opened, and the light source is turned off to save power when the case cover is closed. The switch mechanism 30 includes an abutting member 31 disposed near the closing upper end 112, and a switch assembly 32 fixedly disposed on the housing 21. The abutting piece 31 is a protrusion, and when the switch assembly 32 abuts against the abutting piece 31, the switch assembly 32 is in a closed state, that is, the light source of the box body is closed. When the switch assembly 32 is separated from the abutting member 31, the switch assembly 32 is in an open state, that is, the light source in the box is turned on. The switch assembly 32 includes a housing 321, two electrical connectors 322 received in the housing 321, and an elastic abutting electrical connector 323 received in the housing 322. The structure of the housing 321 can be set according to actual requirements, which is described in detail above. The electrical connector 322 is fixed in the housing 321, and is used for cooperating with the elastic withstanding electrical connector 323 to switch on or off the power supply. The electrical connectors 322 are two electrical conductors to form two electrodes. The elastic abutting electrical connector 323 comprises an abutting cylinder 324 abutting against the abutting member 31, a spring 325 accommodated in the abutting cylinder 324, and an electrical connecting sheet 326 sandwiched between the spring 325 and the bottom of the abutting cylinder 324. When the abutting piece 31 abuts against the abutting barrel 324, the electric connecting sheet 326 can be separated from the electric connection with the two electric connectors 322, so that the light source is turned off. When the abutting piece 31 is disengaged from the abutting cylinder 324, the electric connecting sheet 326 returns to the original position under the action of the spring 325, so as to be electrically connected with the two electric connectors 322, and the light source is turned on, that is, when the elastic abutting electric connector 323 is electrically connected with the electric connectors 322, the two electric connectors 322 are conducted.

Compared with the prior art, the rack 10 in the damping device for the open-cover box provided by the invention is fixed on the box cover, the damper 20 is fixed on the box body, and when the damper 20 is positioned at the closed upper end 112 and the box cover is pulled open, the coupling teeth 229 of the large gear cylinder 222 are coupled with the meshing teeth 212 on the accommodating cavity 21 to fix the large gear cylinder 222, so as to fix the outer cylinder 223. At this time, the inner cylinder 224 is driven by the rack 10 to rotate, and at the same time, since the damping fluid is arranged between the outer cylinder 223 and the inner cylinder 224, the rotation between the outer cylinder 223 and the inner cylinder 224 can be pulled open only by the action of external force, so that the container can be pulled open only slowly to prevent the contents of the container from leaking out. When the damper 20 is located at the open end 111 and covers the cover, the coupling teeth 229 of the large gear cylinder 222 are decoupled from the engagement teeth 212 of the receiving cavity 21, so that the large gear cylinder 222 can rotate together with the outer cylinder 223 without damping between the outer cylinder 223 and the inner cylinder 224, and thus the damping wheel 221 can rotate freely, so that the cover can be closed quickly. Therefore, the damping device for the cover-opening box provided by the invention can provide a damping function when the cover-opening box is opened and has no damping function when the cover-opening box is closed, so that the living requirements of people are met.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.

Claims

1. A damping device for an open-top box, characterized in that: the damping device for the cover opening box comprises a rack and a damper penetrating through the rack, the rack comprises a groove-shaped body, the groove-shaped body comprises an opening end and an upper end opposite to the opening end, the damper comprises a shell penetrating through the groove-shaped body and a damping component accommodated in the shell, the shell comprises an accommodating cavity and a group of meshing teeth arranged on one side facing the upper end, the damping component comprises a damping wheel and a large gear cylinder sleeved and fixed on the damping wheel, the damping wheel is used for providing damping and comprises an outer cylinder and an inner cylinder inserted in the outer cylinder, a circle of outer driving teeth are arranged on the outer cylinder, and a circle of inner driving teeth meshed with the outer driving teeth are arranged on the inner side wall of the large gear cylinder, the size of the accommodating cavity in the arrangement direction of the opening end and the closing upper end is larger than the diameter of the large gear drum, a plurality of coupling teeth are arranged on the outer side wall of the large gear drum, when the damper moves from the closing upper end to the opening end, the coupling teeth of the large gear drum are coupled with the meshing teeth on the accommodating cavity to drive the outer drum to rotate relative to the inner drum, and when the damper moves from the opening end to the closing upper end, the coupling teeth of the large gear drum are decoupled from the meshing teeth on the accommodating cavity to enable the damping wheel to rotate freely.

2. A damping device for an open-top box according to claim 1, characterised in that: a plurality of the teeth are connected end to end.

3. A damping device for an open-top box according to claim 1, characterised in that: the lid is fully open when the damper is at the open end and closed when the damper is at the closed end.

4. A damping device for an open-top box according to claim 1, characterised in that: the damper wheel further includes a pivot shaft disposed on the inner barrel and disposed axially, and a pinion gear fixed to the pivot shaft and received in the channel-shaped body.

5. A damping device for an open-top box according to claim 4, characterised in that: the groove-shaped body is provided with a plurality of internal teeth arranged on one side wall of the groove-shaped body, and the external teeth on the pinion are meshed with the internal teeth on the groove-shaped body.

6. A damping device for an open-top box according to claim 1, characterised in that: damping liquid is contained in the outer cylinder and the inner cylinder.

7. A damping device for an open-top box according to claim 1, characterised in that: the shell is provided with two through holes, and the groove-shaped body penetrates through the through holes to limit the damper between the shell and the groove-shaped body.

8. A damping device for an open-top box according to claim 1, characterised in that: the outer cylinder and the inner cylinder rotate mutually.

9. A damping device for an open-top box according to claim 1, characterised in that: the damping device for the cover opening box further comprises a switch mechanism, the switch assembly comprises a propping piece and a switch assembly, the propping piece is arranged close to the upper end of the cover opening box, the switch assembly is fixedly arranged on the shell, and when the switch assembly props against the propping piece, the switch assembly is in a closed state.

10. A damping device for an open-top box according to claim 9, characterised in that: the switch assembly comprises a shell, two electric plug connectors accommodated in the shell and an elastic abutting electric connector accommodated in the shell, wherein when the elastic abutting electric connector is electrically connected with the electric plug connectors, the two electric plug connectors are conducted.