A door folding device with optimized damping effect

Abstract

A door folding device with optimized damping action, comprising a housing (10) for connecting a cabinet body, a mounting element (20) for connecting a cabinet door, and a support arm mechanism (30), an elastic mechanism (40), and a damping mechanism (50) arranged on the housing (10), wherein the support arm mechanism (30) is movably attached to the housing (10), and the movable end of the support arm mechanism (30) is connected to the mounting element (20) to provide an opening action for the cabinet door, wherein the elastic mechanism (40) provides an elastic force for the support arm mechanism (30) to automatically open or close the support arm mechanism (30) relative to the housing (10), wherein the damping mechanism (50) provides a damping force for the support arm mechanism (30) to counteract the elastic force of the elastic mechanism (40), characterized inthat a transmission element (60) and an elastic element (70) are arranged between the damping mechanism (50) and the support arm mechanism (30), wherein the transmission element (60) is rotatably arranged on the housing (10). When the support arm mechanism (30) is closed to a certain angle, the transmission element (60) acts on the damping mechanism (50) and the support arm mechanism (30), respectively, wherein one end of the elastic element (70) acts on the transmission element (60) and the other end acts on the housing (10), so that the elastic element (70) for the transmission element (60) can be elastically reset.

Description

Technical FieldThe invention relates to the technical field of furniture accessories, and more particularly to a door folding-down device with an optimized cushioning effect.Background ArtChinese Patent Application No. CN202420772415.X is a furniture tucker comprising a tucker mechanism, a force adjusting mechanism and an elastic mechanism disposed in the housing, wherein a pulling force is generated by each hinge point of the tucker mechanism. When the wrapping mechanism is driven by an external force on the housing and opened to a certain angle, the elastic mechanism provides an opening force to the wrapping mechanism so that the wrapping mechanism automatically opens. When the hemming mechanism is driven by an external force on the housing and is closed to a certain angle, the elastic mechanism provides a closing force to the hemming mechanism. When the handling mechanism is driven without external force, the pulling force at each hinge point counteracts the elastic force generated by the elastic mechanism, so that the handling mechanism can easily float up to a certain angle at all times after the door is opened. In this structure, there is also a damper mechanism, wherein the damper mechanism is disposed below the elastic mechanism. The damper mechanism includes a seat body and a damper disposed in the seat body. The other end of the damper protrudes from the seat body and abuts the main support arm, so that the damper provides a damping action for the turnover mechanism. Although the turnover mechanism makes floating at all times when the turnover mechanism opens a smaller angle and then closes the door because the cushioning mechanism has not been fully restored, it cannot provide a full cushioning buffer, resulting in less closing cushioning effect, so that the door body collides with the cabinet body and generates noise; therefore, further improvement is required.Content of the Utility ModelThe purpose of the present invention is to provide a door folding-down device with an optimized cushioning effect, thereby solving the problems posed by the above prior art.In order to achieve the above purpose, the utility model provides the following technical solutions:A door unfolding apparatus with optimized damping action, comprising a housing for connecting a cabinet body, a mounting member for connecting a cabinet door and a support arm mechanism, an elastic mechanism and a damping mechanism disposed on the housing, wherein the support arm mechanism is movably attached to the housing and the movable end of the support arm mechanism is connected to the mounting member to provide an opening action for the cabinet door, wherein the elastic mechanism provides an elastic force to the support arm mechanism to automatically open or close the support arm mechanism relative to the housing, wherein the damping mechanism provides a damping force to the support arm mechanism to counteract the elastic force of the elastic mechanism, wherein a transmission member and an elastic member are disposed between the damping mechanism and the support arm mechanism, wherein the transmission member is rotatably disposed on the housing, When the support arm mechanism is closed to a certain angle, the transmission member acts on each of the damper mechanism and the support arm mechanism, one end of the elastic member acts on the transmission member and the other end acts on the housing, so that the elastic member for the transmission member can be elastically restored.Preferably, the elastic force provided by the elastic mechanism for the support arm mechanism is greater than the elastic force provided by the elastic member for the transmission member.Preferably, the elastic member is a torsion spring, the transmission member is provided with a receiving space for receiving the elastic member, the lower end of the transmission member is provided on the housing by rotation of the pivot pin, and the coil portion of the spring member is interleaved on the pivot pin, the torsion arms abutting on both ends of the transmission member and the housing, respectively.Preferably, the front side of the transmission element is provided with an action part a, the rear side is provided with an action part b, the action part a and the action part b both being curved, the action end of the damping mechanism abutting against the action part a and still abutting against the action part b when the support arm mechanism is in the closed state.Preferably, the inwardly directed recess of the front side of the transmission element forms a limiting portion and a limiting pin is arranged on the housing corresponding to the limiting portion.Preferably, the support arm mechanism includes at least one main support arm, and the inner side surface of the main support arm abuts against the action part a when the door down-folding device is closed.Preferably, the damper mechanism includes a seat body, a slider, a damper, and a first adjustment screw, the seat body being fixed to the housing, the slider being movably disposed in the seat body along a forward and rearward direction, respectively, one end of the damper being connected to the slider, the other end abutting on the action part a, the first adjustment screw being rotatably disposed in the seat body, and the first adjustment screw being screwed to the slider to drive the slider in a forward and rearward direction, respectively, when the adjustment screw is rotated.Preferably, the elastic mechanism comprises a first spring seat, a second spring seat and a plurality of spring groups arranged between the first spring seat and the second spring seat, the first spring seat being hinged to the housing, the second spring seat acting on the support arm mechanism, the spring group comprising a movable shaft, a first shaft sleeve, a second shaft sleeve and a compression spring, the first spring seat being provided with a shaft hole, one end of the movable shaft being fixedly connected to the second spring seat, the other end being screwed into the shaft hole to move the movable shaft linearly along the shaft hole, the first shaft sleeve and the second shaft sleeve being nested on the movable shaft, the compression spring being nested on the first shaft sleeve and the second shaft sleeve, and the two ends of the compression spring abut on the first spring seat and the second spring seat, respectively.Preferably, a force adjustment mechanism is disposed between the resilient mechanism and the support arm mechanism, the force adjustment mechanism comprising a force arm, a second adjustment screw, a hinge seat and an active adjustment member, the upper end of the force arm being hinged to the housing, the second adjustment screw being rotatably supported in the force arm, the hinge seat cooperating with a second adjustment screw to drive the hinge seat to linear motion when the second adjustment screw is rotated, the active adjustment member being rotatably supported in the force arm, and the active adjustment member engaging an end of the second adjustment screw to rotate the active adjustment member when the second adjustment screw is driven to rotate.As compared with the related art, the present technical solution provides a door folding device with optimized cushioning effect: by providing a transmission member and an elastic member between the cushioning mechanism and the support arm mechanism, when the support arm mechanism is turned on, the spring member is used to elastically restore the transmission member so that the transmission member quickly returns to the opening position even if the support arm mechanism is not opened throughout the process, the transmission member and the cushioning mechanism provide a cushioning force to the support arm mechanism, thereby reducing noise and ensuring a feeling of user experience.Illustration of the Accompanying DrawingsFIG. 1 is a schematic diagram of a three-dimensional angle-of-view structure in the utility model. FIG. 2 is a schematic diagram of the main view angle structure in the utility model. FIG. 3 is a schematic illustration of the exploded view of the elastic mechanism in the utility model. FIG. 4 is a schematic view of the three-dimensional viewing angle of the damper mechanism in the utility model. FIG. 5 is a schematic cross-sectional view of the damper mechanism in the utility model. FIG. 6 is a schematic illustration of the exploded view of the transmission member in the utility model. FIG. 7 is a schematic cross-sectional view of the force adjusting mechanism in the utility model. FIG. 8 is a schematic illustration of the opened door state of the utility model. FIG. 9 is a schematic illustration of the closed door state of the utility model.As shown in connection with the characters in the drawings, housing 10, mounting member 20, support arm mechanism 30, main support arm 301, elastic mechanism 40, first spring seat 401, second spring seat 402, movable shaft 403, first shaft sleeve 404, second shaft sleeve 405, compression spring 406, shaft hole 407, damper mechanism 50, seat body 501, slider 502, damper 503, first adjustment screw 504, transmission member 60, action part a 601, action part b 602, accommodation cavity 603, restricting portion 604, elastic member 70, force arm 80, force adjustment mechanism 801, second adjustment screw 802, hinge seat 803, active adjustment member 804, restricting pin 90.Specific EmbodimentsIn order to clarify the purpose of the technical solutions and the advantages of the utility model, a clear and complete description of the technical solutions in the embodiment of the utility model will be given below in conjunction with the drawings in the embodiment of the utility model.Referring to FIGS. 1 to 9, there is provided a door folding device with optimized damping action, comprising a housing 10 for connecting a cabinet body, a mounting member 20 for connecting a cabinet door and a support arm mechanism 30, an elastic mechanism 40 and a damping mechanism 50 disposed on the housing 10, the support arm mechanism 30 being movably attached to the housing 10 and the movable end of the support arm mechanism 30 being connected to the mounting member 20 to provide an opening action for the cabinet door, the elastic mechanism 40 providing an elastic force to the support arm mechanism 30 to automatically open or close the support arm mechanism 30 relative to the housing 10, the damping mechanism 50 providing a damping force to the support arm mechanism 30 to counteract the elastic force of the elastic mechanism 40;As described above, a transmission member 60 and an elastic member 70 are interposed between the damper mechanism 50 and the bracket mechanism 30, the transmission member 60 being rotatably disposed on the housing 10 when the bracket mechanism 30 is closed to a certain angle, the transmission member 60 acts on the damper mechanism 50 and the bracket mechanism 30, respectively, one end of the elastic member 70 acts on the transmission member 60 and the other end acts on the housing 10, so that the elastic member 70 for the transmission member 60 can be elastically restored. It is understood that when the support arm mechanism 30 is turned over and opened, the elastic member 70 for the transmission member 60 is elastically restored so that the transmission member 60 quickly returns to the opening position even when the support arm mechanism 30 is closed throughout the travel, the support arm mechanism 30 is buffered by the cooperation of the transmission member 60 and the damping mechanism 50 to reduce noise and ensure user-friendliness.Specifically, the elastic force provided by the elastic mechanism 40 for the support arm mechanism 30 is larger than the elastic force provided by the elastic member 70 for the transmission member 60; more specifically, the elastic mechanism 40 counteracts the relative force of the elastic member 70, so that the door body can be firmly closed.More specifically, the elastic member 70 is a torsion spring, the transmission member 60 is provided with a receiving space 603 for receiving the elastic member 70, the lower end of the transmission member 60 is provided on the housing 10 by rotation of the pivot pin, and the coil portion of the spring member 50 is interleaved on the pivot pin, the torsion arms abutting on the transmission member 60 and the housing 10 at both ends, respectively. The structure is not only capable of being concealed, but is also convenient to install, the torsion arms of the spring element 50 resting on the projections on the housing 10.Specifically, the front side of the transmission member 60 is provided with an action part a 601 and the rear side is provided with an action part b 602, the action part a 601 and the action part b 602 are both curved, the action end of the damper mechanism 50 abuts against the action part a 601 and still abuts against the action part b 602 when the support arm mechanism 30 is in the closed state. It should be known that when the support arm mechanism 30 is closed to a certain angle, the support arm mechanism 30 contacts the action part a 601 and friction occurs between both during the contact. The action part b 602 and the damper mechanism 50 generate friction. The action part a 601 and the action part b 602 can reduce the noise generated by friction by assuming the curved surface shape.Specifically, the inward recess of the front side of the transmission member 60 forms a restricting portion 604, and a restricting pin 90 is disposed on the housing 10 corresponding to the restricting portion 604. It should be known that the restricting portion 604 formed by the inward recess of the transmission member 60 cooperates with the restricting pin 90 to restrict the rotation angle of the transmission member 60 and prevent overturn from the door rotating device from not realizing the buffer function.Specifically, the support arm mechanism 30 includes at least one main support arm 301, and the inner side surface of the main support arm 301 abuts on the action part a 601 when the door down-folding device is closed.Specifically, the damper mechanism includes a seat body 501, a slider 502, a damper 503, and a first adjustment screw 504, the seat body 501 is fixed to the housing 10, the slider 502 is movably disposed in the seat body 501 along a forward and rearward direction, one end of the damper 503 is connected to the slider 502, the other end abuts on the action part a 601, the first adjustment screw 504 is rotatably disposed in the seat body 501, and the first adjustment screw 504 is screwed to the slider 502 to drive the slider 502 in a forward and rearward direction when the adjustment screw 504 is rotated.In particular, the elastic mechanism 40 comprises a first spring seat 401, a second spring seat 402, and a plurality of spring groups arranged between the first spring seat 401 and the second spring seat 402, the first spring seat 401 being hinged to the housing 10, the second spring seat 402 acting on the support arm mechanism 30, the spring group comprising a movable shaft 403, a first shaft sleeve 404, a second shaft sleeve 405 and a compression spring 406, the first spring seat 401 being provided with a shaft hole 407, one end of the movable shaft 403 being fixedly connected to the second spring seat 402, the other end being screwed into the shaft hole 407 to move the movable shaft 403 linearly along the shaft hole 407, the first shaft sleeve 404 and the second shaft sleeve 405 being nested on the movable shaft 403, wherein the compression spring 406 is nested on the first shaft sleeve 404 and the second shaft sleeve 405, and the two ends of the compression spring 406 abut on the first spring seat 401 and the second spring seat 402, respectively.More specifically, a force adjustment mechanism 80 is disposed between the resilient mechanism 40 and the support arm mechanism 30, the force adjustment mechanism 80 comprising a force arm 801, a second adjustment screw 802, a hinge seat 803, and an active adjustment member 804, the upper end of the force arm 801 being hinged to the housing 10, the second adjustment screw 802 being rotatably supported in the force arm 801, the hinge seat 803 cooperating with a second adjustment screw 802 to drive the hinge seat 803 to linear motion when the second adjustment screw 802 is rotated, the active adjustment member 804 being rotatably supported in the force arm 801, and the active adjustment member 804 engaging an end of the second adjustment screw 802 to rotate the active adjustment member 804 when the second adjustment screw 802 is driven to rotate.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedCN 202420772415

[0002]

Claims

A door folding-down device with optimized damping action, comprising a housing (10) for connecting a cabinet body, a mounting member (20) for connecting a cabinet door and a support arm mechanism (30), an elastic mechanism (40) and a damping mechanism (50) arranged on the housing (10), wherein the support arm mechanism (30) is movably attached to the housing (10) and the movable end of the support arm mechanism (30) is connected to the mounting member (20) to provide an opening action for the cabinet door, wherein the elastic mechanism (40) provides an elastic force for the support arm mechanism (30) to automatically open or close the support arm mechanism (30) relative to the housing (10), wherein the damping mechanism (50) provides a damping force for the support arm mechanism (30) to counteract the elastic force of the elastic mechanism (40), characterized in that, a transmission member (60) and an elastic member (70) being disposed between the damper mechanism (50) and the support arm mechanism (30), the transmission member (60) being rotatably disposed on the housing (10) when the support arm mechanism (30) is closed to a certain angle, the transmission member (60) acts on the damper mechanism (50) and the support arm mechanism (30), respectively, one end of the elastic member (70) acts on the transmission member (60) and the other end acts on the housing (10), so that the elastic member (70) for the transmission member (60) can be elastically restored.The door folding-down device with optimized damping effect according to claim 1, characterized in that the elastic force provided by the elastic mechanism (40) for the support arm mechanism (30) is larger than the elastic force provided by the elastic member (70) for the transmission member (60).The door folding-down device with optimized cushioning action according to claim 1, characterized in that the front side of the transmission member (60) is provided with an action part a (601), the rear side being provided with an action part b (602), the action part a (601) and the action part b (602) being both curved, the action end of the cushioning mechanism (50) abutting against the action part a (601) and still abutting against the action part b (602) when the support arm mechanism (30) is in the closed state.The door folding-down device with optimized cushioning effect according to claim 1, characterized in that the elastic member (70) is a torsion spring, the transmission member (60) is provided with a receiving space (603) for receiving the elastic member (70), the lower end of the transmission member (60) is provided on the housing (10) by rotation of the pivot pin, and the coil portion of the spring member (50) is interleaved on the pivot pin, the torsion arms being abutted at both ends to the transmission member (60) and the housing (10), respectively.The door folding-down device with optimized cushioning effect according to claim 1, characterized in that the inwardly directed recess of the front side of the transmission member (60) forms a limiting portion (604), and a limiting pin (90) is arranged on the housing (10) corresponding to the limiting portion (604).The door folding device with optimized cushioning effect according to claim 1, characterized in that the support arm mechanism (30) comprises at least one main support arm (301), and the inner side surface of the main support arm (301) abuts against the action part a (601) when the door folding device is closed.The door folding-down device with optimized damping action according to claim 1, characterized in that the damping mechanism (50) comprises a seat body (501), a slider (502), a damper (503), and a first adjusting screw (504), the seat body (501) is fixed to the housing (10), the slider (502) is movably disposed in the seat body (501) along a forward and rearward direction, respectively, one end of the damper (503) is connected to the slider (502), the other end abuts the action part a (601), the first adjusting screw (504) is rotatably disposed in the seat body (501), and the first adjusting screw (504) is screwed to the slider (502) to drive the slider (502) in a forward and rearward direction, respectively, when the adjusting screw (504) is rotated.The door folding-down device with optimized damping action according to claim 1, characterized in that the elastic mechanism (40) comprises a first spring seat (401), a second spring seat (402), and a plurality of spring groups disposed between the first spring seat (401) and the second spring seat (402), the first spring seat (401) being hinged to the housing (10), the second spring seat (402) acting on the support arm mechanism (30), the spring group comprising a movable shaft (403), a first shaft sleeve (404), a second shaft sleeve (405), and a compression spring (406), the first spring seat (401) being provided with a shaft hole (407), one end of the movable shaft (403) being fixedly connected to the second spring seat (402), wherein the other end is screwed into the shaft hole (407) to move the movable shaft (403) linearly along the shaft hole (407), the first shaft sleeve (404) and the second shaft sleeve (405) are nested on the movable shaft (403), the compression spring (406) is nested on the first shaft sleeve (404) and the second shaft sleeve (405), and the both ends of the compression spring (406) abut on the first spring seat (401) and the second spring seat (402), respectively.The door folding down device with optimized damping action according to claim 1, characterized in that a force adjusting mechanism (80) is arranged between the elastic mechanism (40) and the support arm mechanism (30), the force adjusting mechanism (80) comprising a force arm (801), a second adjusting screw (802), a hinge seat (803) and an active adjusting element (804), wherein the upper end of the force arm (801) is hinged to the housing (10), wherein the second adjusting screw (802) is rotatably supported in the force arm (801), wherein the hinge seat (803) cooperates with a second adjusting screw (802) to drive the hinge seat (803) to a linear movement when the second adjusting screw (802) is rotated, wherein the active adjustment member (804) is rotatably supported in the power arm (801), and the active adjustment member (804) is engaged with an end of the second adjustment screw (802) to rotate the active adjustment member (804) when the second adjustment screw (802) is driven to rotate.

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