[0032] The present invention will be further described below with reference to the drawings and embodiments.
[0033] See Figure 1-Figure 13 , The labor-saving and silent pressing rebound opening and closing device for furniture includes a rebound bracket 1, a pushing element 2, a pressing element 3, and a lever assembly. The rebound bracket 1 is provided with a recirculation groove 4, and the pushing element 2 is provided with a sliding shaft portion 5, The pressing element 3 is elastically stretched and limited to slide on the pushing element 2 and/or the rebound bracket 1, and acts and drives the sliding shaft portion 5 to position and/or slide along the track of the loop groove 4 in a sequential direction when sliding.
[0034] The lever assembly is respectively mated and connected with the rebound bracket 1 and the pressing element 3, and is also provided with a lever action portion 6, the pushing element 2 is provided with a pushing action portion 7, and the return groove 4 is provided with at least an upper limit sliding area communicating with each other 8. Conversion area 9 and front stay area 10.
[0035] The sliding shaft part 5 acts when sliding on the upper limit sliding area 8 and drives the pressing element 3 and the pushing element 2 to slide out of the rebound bracket 1. The sliding shaft part 5 slides on the upper limit sliding area 8 to a certain position and the pressing element 3 Disengaged from each other, the pushing element 2 interacts with the lever action part 6 through the pushing action part 7 when the sliding shaft part 5 and the pressing element 3 are separated. The lever assembly moves on the rebound support 1 through the action of the pushing element 2 and drives the pressing element 3 And the pushing element 2 continues to slide out of the rebound bracket 1. When the pushing element 2 continues to slide on the rebound bracket 1, the sliding shaft portion 5 is driven to slide from the upper limit sliding area 8 to the conversion area 9 and stay in the front stop area 10. In; wherein, the pushing element 2 and the pressing element 3 are positioned outside the rebound bracket 1 when the sliding shaft portion 5 stays in the front stay area 10.
[0036] The conversion area 9 is composed of at least one zigzag section, and its two ends are respectively connected with the upper limit sliding area 8 and the front stay area 10, and a certain distance is formed between the conversion area 9 and the upper limit sliding area 8 and/or the front stay area 10. Angle a.
[0037] A lower limit sliding area 11 is provided on the return-shaped groove 4, and the lower limit sliding area 11 communicates with the front stay area 10 and forms a certain included angle b with the conversion area 9.
[0038] When the pushing element 2 slides into the rebound bracket 1, the pushing action part 7 interacts with the lever action part 6, and the lever assembly moves on the rebound support 1 through the action of the pushing element 2, and drives the pressing element 3 and the pushing element 2 to slide into the rebound support In 1, when the pushing element 2 slides into the rebound bracket 1, the sliding shaft part 5 is driven to slide from the front stop area 10 to the lower limit sliding area 11. The sliding shaft part 5 slides on the lower limit sliding area 11 to a certain position to interact with the pressing element 3 And drive the pressing element 3 and the pushing element 2 to continue to slide into the rebound bracket 1, and the pushing part 7 separates from the lever action part 6 when the sliding shaft part 5 and the pressing element 3 act.
[0039] At least one zigzag section is provided between the pushing action portion 7 and the lever action portion 6, and the pushing action portion 7 and the lever action portion 6 interact through at least one zigzag section.
[0040] The lever assembly includes a first lever 12 and a second lever 13; wherein one end of the first lever 12 is rotatably arranged on the rebound support 1, and the other end is provided with a lever action part 6 interacting with or disengaging from the pushing action part 7, and the second lever 13 One end is rotatably arranged on the first lever 12 and the other end is rotatably arranged on the pressing element 3.
[0041] The return-shaped groove 4 is provided with a rear stay area 14; the upper limit sliding area 8, the conversion area 9 and the front stay area 10, the lower limit sliding area 11, and the rear stay area 14 communicate with each other from end to end, and together form the back-shaped groove 4.
[0042] The pressing element 3 acts when it continues to slide into the rebound bracket 1 and drives the sliding shaft portion 5 to slide from the lower limit sliding area 11 and stay in the rear staying area 14. Among them, the pushing element 2 and the pressing element 3 stay behind the sliding shaft portion 5 When staying in the area 14, it is extended and positioned in the rebound bracket 1.
[0043] The rear stay area 14 is in the shape of a heart, and the left and right side walls are respectively provided with inclined portions; the pressing element 3 is provided with a rear area sliding-in guide portion 15, and the sliding-in guide portion 15 and the sliding shaft portion 5 are mutually connected through the rear area. Function or break away.
[0044] When the pushing element 2 slides into the rebound bracket 1, the pushing action part 7 interacts with the lever action part 6, and the lever assembly moves on the rebound support 1 through the action of the pushing element 2, and drives the pressing element 3 and the pushing element 2 to slide into the rebound support In 1, when the pushing element 2 slides into the rebound bracket 1, the sliding shaft part 5 is driven to slide from the front stop area 10 to the lower limit sliding area 11. The sliding shaft part 5 slides on the lower limit sliding area 11 to a certain position and the rear area slides into the guide The part 15 interacts and drives the pressing element 3 and the pushing element 2 to continue to slide into the rebound bracket 1, and the pushing part 7 separates from the levering part 6 when the sliding shaft part 5 and the rear area sliding-in guide part 15 act.
[0045] When the pressing element 3 continues to slide into the rebound bracket 1, the sliding shaft part 5 is driven by the sliding-in guide part 15 in the rear area to guide the sliding from the lower limit sliding area 11 and stay in the rear stop area 14; wherein the sliding shaft part 5 stays When in the rear stay area 14, the sliding-in guide portion 15 is separated from the rear area, and the pushing element 2 and the pressing element 3 extend into the rebound bracket 1 when the sliding shaft portion 5 stays in the rear stay area 14.
[0046] A pressing elastic member 16 is provided between the pushing element 2 and the rebounding bracket 1. One end of the pushing elastic member 16 is elastically connected to the pushing element 2 and the other end is elastically connected to the rebounding bracket 1. The pushing element 3 is also provided with a rear area sliding member. The exit guide portion 17 and the slide-out guide portion 17 through the rear area interact or disengage from the sliding shaft portion 5.
[0047] When the sliding shaft portion 5 stays in the rear stay area 14 and the pressing element 3 presses and slides relative to the rebound bracket 1, the pressing element 3 acts on the sliding out guide portion 17 through the rear area and drives the sliding shaft portion 5 to tilt and guide the sliding from the rear stay area 14. Go out to the upper limit sliding area 8.
[0048] When the sliding shaft portion 5 slides on the upper limit sliding area 8, it acts on the sliding-out guide portion 17 in the rear area, and the pressing element 3 and the pushing element 2 slide out of the rebound bracket 1 through the action of the sliding shaft portion 5. The sliding shaft portion 5 Sliding on the upper limit sliding area 8 to a certain position and the rear area sliding out guide portion 17 are separated from each other, and the pushing element 2 passes through the pushing action portion 7 and the lever action portion 6 when the sliding shaft portion 5 and the rear area sliding out guide portion 17 are separated Interaction, the lever assembly moves on the rebound support 1 through the action of the pushing element 2, and drives the pressing element 3 and the pushing element 2 to continue to slide out of the rebound support 1. The pushing element 2 is driven when the pushing element 2 continues to slide and extend on the rebound support 1. The sliding shaft part 5 buffers and slides from the upper limit sliding area 8 to the conversion area 9 and stays in the front stay area 10; wherein the pushing element 2 and the pressing element 3 extend and position when the sliding shaft part 5 stays in the front stay area 10 Outside the rebound bracket 1.
[0049] The pressing element 3 is provided with a limiting portion 18, the pushing element 2 is provided with a limiting matching portion 19, a sliding elastic member 20 is also provided between the pressing element 3 and the pushing element 2, and one end of the sliding elastic member 20 is elastically connected to the pressing element 3, The other end is elastically connected with the pushing element 2; the pressing element 3 is always elastically stretched and limited in the direction of the rear stay area 14 through the cooperation of the limiting portion 18 and the sliding elastic member 20 and sliding on the limiting mating portion 19 of the pushing element 2 Above; the elastic force generated by the pressing elastic member 16 is greater than the elastic force generated by the sliding elastic member 20.
[0050] The device also includes a movable part 21 movable relative to the rebound bracket 1, wherein when the movable part 21 moves in the direction of the rebound bracket 1, the lever assembly is driven to rotate on the rebound bracket 1, and the movable member 21 moves in the opposite direction of the rebound bracket 1. The lever assembly escapes from the air.
[0051] The working principle of the movable part 21 is similar to the adjustment structure for furniture pressing and rebound disclosed on August 2, 2019 by the applicant's document number CN110074570A, and will not be repeated here.
[0052] The drawings are only used for exemplary description, and they are only schematic diagrams, not physical drawings, and cannot be understood as a limitation of the patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or The reduction does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions may be omitted.
[0053] Moreover, the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left" and " The orientation or positional relationship indicated by “right”, “vertical”, “horizontal”, “horizontal”, “vertical”, “top”, “bottom”, “inner”, and “outer” are based on the orientation shown in the drawings Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the drawings are only It is used for illustrative purposes and cannot be understood as a limitation of this patent.
