Hidden thick door hinge with adjustable speed

Abstract

The speed-adjustable hidden thick door hinge is characterized in that a fixed plate assembly is mounted in a groove body formed in a fixed side, and a door plate assembly is mounted in a groove body formed in a door plate; the torsion spring is fixed to the first transmission piece of the door plate assembly, and torsion arms on the two sides of the torsion spring are clamped between the second transmission piece of the door plate assembly and the L-shaped connecting plate of the fixing plate assembly respectively. The damper is installed in the door plate assembly, the first transmission piece is in transmission connection with the piston end of the damper through the step buffering adjusting assembly, and the step buffering adjusting assembly can adjust the transmission stroke between the first transmission piece and the piston end in a step mode, so that the first transmission piece can trigger the piston end when rotating to different angles. Damping buffering is achieved when the door is closed to different angles. By means of the technical scheme, the adjustable function of triggering damping buffering when the distance between the door and the door is 10 degrees and 30 degrees can be achieved, the door opening and closing smooth effect is improved, and the hiding effect of the hinge is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, and in particular to a concealed thick door hinge with adjustable speed. Background Art

[0002] As people's requirements for furniture experience continue to improve, hinges, as important components connecting cabinets and door panels, are receiving more and more attention for their performance and structural design. Modern home design pursues simplicity, beauty, rich functions and high-quality user experience, which puts higher requirements on the size, appearance and function of hinges.

[0003] Most traditional hinges adopt an exposed design. Although the structure is simple, the appearance after installation is rather abrupt and it is difficult to meet the requirements for the overall aesthetics of furniture. In addition, the buffering performance of traditional hinges is often relatively simple. Usually, a single angle is involved in the buffering when closing the door, and it is impossible to achieve more precise buffering control according to the different angles of the door panel during the closing process. As for the problem of inconsistent smoothness caused by the change of door panel weight, the existing technology lacks flexible adjustment functions, which makes it difficult to adapt the closing speed and smoothness performance to different usage scenarios.

[0004] Existing hinges also have the problem of limited door opening angles. Most hinges are difficult to meet special requirements in terms of door opening angles, which limits their application in different door panel thicknesses and installation conditions. For scenarios where hinges need to be installed on thicker door panels, traditional hinges may cause door panels to collide with each other, further reducing convenience and durability.

[0005] In response to the above problems, hinges with hidden designs have begun to appear on the market. However, such products often sacrifice structural stability and functional diversity while achieving hidden functions, resulting in the product's service life and performance being difficult to reach ideal levels. Summary of the invention

[0006] In response to the above problems, the present invention provides a hidden thick door hinge with adjustable speed. Through the stepped adjustment mechanism of the stepped buffer adjustment assembly, the adjustable function of triggering the damping buffer at 10° and 30° away from closing the door can be realized, and the buffering effect can be selectively adjusted when the weight of the door panel changes. Through the dual damping buffer structure of the damper and the torsion spring, the smoothness of opening and closing the door panel is effectively improved, and the service life of the hinge is increased. In addition, the hidden effect of the hinge is achieved through the sunken installation method of the fixed plate assembly and the door panel assembly.

[0007] To achieve the above-mentioned object, the present invention provides a concealed thick door hinge with adjustable speed, including: a fixing plate assembly, a door panel assembly, a torsion spring, a damper and a transmission assembly;

[0008] The fixing plate assembly is installed in a groove body opened on the fixed side, and the door panel assembly is installed in a groove body opened on the door panel;

[0009] The spring body of the torsion spring is fixed on the first transmission plate of the door panel assembly, and the torsion arms on both sides of the torsion spring are respectively clamped between the second transmission plate of the door panel assembly and the L-shaped connecting plate of the fixed plate assembly;

[0010] The damper is installed in the door panel assembly, and the first transmission plate is connected to the piston end of the damper through a step buffer adjustment assembly. The step buffer adjustment assembly can step-by-step adjust the transmission stroke between the first transmission plate and the piston end, so that during the door closing process, the first transmission plate can trigger the piston end when it rotates to different angles, so as to achieve damping buffering when the door panel is closed to different angles.

[0011] In the above technical solution, preferably, the step buffer adjustment assembly includes an adjustment slide and a step adjustment member, the adjustment slide is slidably installed in a slide groove provided on the first transmission plate, the step adjustment member is provided as a stepped structure on both sides of the slide groove along the sliding direction, the bottom of the adjustment slide is in contact with the step adjustment member, and the step adjustment member is transmission-connected to the piston end of the damper through the damper push seat;

[0012] During the door closing process, the door panel can drive the step adjustment member to rotate toward the first transmission plate under the action of the driving force. After the stepped structure abuts against the bottom of the adjustment slide, the stepped structure can apply reverse pressure to the step adjustment member. The step adjustment member can apply pressure to the piston end of the damper through the transmission of the damper push seat, so that the door panel can achieve the door closing action under the damping buffer of the damper.

[0013] In the above technical solution, preferably, the stepped structure of the step adjustment member adopts preset specifications, so that the door panel can trigger the damping buffering of the damper when the door panel is 10° and 30° away from closing, respectively.

[0014] In the above technical solution, preferably, the torsion spring passes through the spring body through the mounting shaft and is installed in the mounting holes on both sides of one end of the first transmission plate, and the other end of the first transmission plate is relatively fixed to the door panel assembly through the fixing hole, and the mounting hole is closer to the inner side of the door panel by a preset distance than the vertical distance of the fixing hole relative to the door panel, so that when one end of the fixing hole of the first transmission plate is in a vertical state relative to the fixed plate assembly, the door panel is in an obtuse angle state relative to the fixed side.

[0015] In the above technical solution, preferably, the mounting hole is 1 mm closer to the inner side of the door panel than the vertical distance of the fixing hole relative to the door panel, so that when one end of the fixing hole of the first transmission plate is in a vertical state relative to the fixed plate assembly, the door panel is at 93° to 95° relative to the fixed side.

[0016] In the above-mentioned technical solution, preferably, the fixing plate assembly further comprises a connecting plate bracket seat, a first connecting plate and a connecting base;

[0017] The connecting plate bracket seat adopts a hollow slotted structure, and the L-shaped connecting plate, the first connecting plate and the connecting seat are sequentially stacked in the connecting plate bracket seat from the outside to the inside relative to the fixed side, and the connecting plate bracket seat is fixed in the slot body of the fixed side where the door panel is to be installed, and is fixed by tightening screws;

[0018] An adjustment hole is provided with a corresponding preset position of the L-shaped connecting plate and the first connecting plate, and the first connecting plate is hinged to the L-shaped connecting plate through a left-right adjustment rotating shaft;

[0019] The connecting seat is fixed to the connecting plate bracket seat by connecting pot nails, and the position corresponding to the adjustment hole on the connecting seat is provided with back seam adjustment screws, left and right adjustment screws and upper and lower adjustment screws.

[0020] In the above-mentioned technical solution, preferably, the door panel assembly further comprises a door panel hinge base, a damping fixing base and a damping support base;

[0021] The door panel hinge seat is engaged and fixed with the damping fixing seat, and is fixed in the groove body opened in the door panel;

[0022] The two groups of dampers are respectively installed in the grooves on both sides of the inside of the damping fixing seat, the rear end of the damping cylinder of the damper is supported by the damping support seat, the piston ends of the dampers on both sides are respectively fixedly sleeved on both sides of the damping push seat, the damping push seat is abutted against the step adjustment member, and the step adjustment member is abutted against the adjustment slide seat.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) Through the stepped adjustment mechanism of the stepped buffer adjustment component, the adjustable function of triggering the damping buffer at 10° and 30° away from the door closing can be realized, and the buffer effect can be selectively adjusted when the weight of the door panel changes;

[0025] (2) The dual damping and buffering structure of the damper and the torsion spring effectively improves the smoothness of the door panel when opening and closing, significantly improves the stability and user experience of the door panel opening and closing process, and increases the service life of the hinge;

[0026] (3) By improving the transmission structure between the fixed plate assembly and the door panel assembly, the door opening angle can reach 93 to 95 degrees, so that the hinge can be installed on a door panel with a thickness of 18 to 35 mm without collision, thereby expanding the application range of the hinge and improving the versatility of the hinge;

[0027] (4) By using the sunken installation method of the fixed plate assembly and the door panel assembly, the stability of the hinge installation is improved, the hidden effect of the hinge is achieved, the overall aesthetics is improved, and the reliability and stability of the hinge in long-term use are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the opening and closing state of the adjustable speed hidden thick door hinge disclosed for an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of an explosive structure of an adjustable hidden thick door hinge disclosed for an embodiment of the present invention;

[0030] Figure 3 An internal structure explosion diagram of an adjustable speed hidden thick door hinge disclosed for an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of the internal structure of an adjustable hidden thick door hinge in the door open state disclosed for an embodiment of the present invention;

[0032] Figure 5 A schematic diagram of the internal structure of the adjustable speed hidden thick door hinge in the closed state disclosed for an embodiment of the present invention;

[0033] Figure 6 A schematic diagram of the installation method of the first transmission tab and the second transmission tab in the adjustable hidden thick door hinge disclosed for an embodiment of the present invention;

[0034] Figure 7 A structural diagram of a step adjuster of a speed adjustable hidden thick door hinge disclosed for an embodiment of the present invention.

[0035] In the figure, the corresponding relationship between each component and the reference numeral is:

[0036] 1. Fixed plate assembly; 11. L-shaped connecting plate; 12. Connecting plate bracket seat; 13. First connecting plate; 14. Connecting seat; 141. Connecting pot nail; 15. Fastening screw; 16. Left and right adjustment shaft; 17. Back seam adjustment screw; 18. Left and right adjustment screw; 19. Up and down adjustment screw; 2. Door panel assembly; 21. First transmission plate; 211. Mounting hole; 212. Fixing hole; 213. Slide groove; 22. Second transmission plate; 23. Adjusting slide seat; 24. Step adjustment member; 25. Damper push seat; 26. Door panel hinge seat; 27. Damper fixing seat; 28. Damper support seat; 3. Torsion spring; 4. Damper; 5. Fixed plate decorative cover; 6. Door panel decorative cover; 7. Fixed side; 8. Door panel. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0039] like Figures 1 to 3 As shown, a speed adjustable hidden thick door hinge provided in accordance with the present invention, including: a fixing plate assembly 1 , a door panel assembly 2 , a torsion spring 3 , a damper 4 , and a transmission assembly;

[0040] The fixing plate assembly 1 is installed in the groove body opened on the fixed side 7 , and the door panel assembly 2 is installed in the groove body opened on the door panel 8 ;

[0041] The spring body of the torsion spring 3 is fixed to the first transmission piece 21 of the door panel assembly 2 , and the torsion arms on both sides of the torsion spring 3 are respectively arranged between the second transmission piece 22 of the door panel assembly 2 and the L-shaped connecting plate 11 of the fixing plate assembly 1 ;

[0042] The damper 4 is installed in the door panel assembly 2, and the first transmission plate 21 is connected to the piston end of the damper 4 through a step buffer adjustment assembly. The step buffer adjustment assembly can step-by-step adjust the transmission stroke between the first transmission plate 21 and the piston end, so that during the door closing process, the first transmission plate 21 can trigger the piston end when it rotates to different angles, so as to achieve damping buffering when the door panel 8 is closed to different angles.

[0043] In this embodiment, through the stepped adjustment mechanism of the stepped buffer adjustment assembly, the adjustable function of triggering the damping buffer at 10° and 30° away from closing the door can be achieved, and the buffering effect can be selectively adjusted when the weight of the door panel 8 changes. Through the double damping buffer structure of the damper 4 and the torsion spring 3, the smooth opening and closing effect of the door panel 8 is effectively improved, and the service life of the hinge is improved. In addition, through the sunken installation method of the fixed plate assembly 1 and the door panel assembly 2, the hidden effect of the hinge is achieved.

[0044] During the implementation process, during the door closing process, under the triggering of the force, the door panel 8 starts to rotate, and during the rotation process, the torsional force of the torsion spring 3 is overcome. At the same time, the torsional force of the torsion spring 3 provides damping buffering for the closing of the door panel 8. When it rotates to a predetermined angle, the step buffer adjustment assembly triggers the piston end of the damper 4, and the damper 4 provides further damping buffering for the closing process of the door panel 8, so that the door panel 8 can be closed slowly.

[0045] like Figure 4 and Figure 5 As shown, in the above embodiment, preferably, the step buffer adjustment assembly includes an adjustment slide 23 and a step adjustment member 24, the adjustment slide 23 is slidably installed in a slide groove 213 provided on the first transmission plate 21, and the step adjustment member 24 is provided as a stepped structure on both sides of the high and low sides along the sliding direction of the slide groove 213, the bottom of the adjustment slide 23 abuts against the step adjustment member 24, and the step adjustment member 24 is transmission-connected to the piston end of the damper 4 through the damper push seat 25;

[0046] During the door closing process, the door panel 8 can drive the step adjustment member 24 to rotate toward the first transmission plate 21 under the action of the driving force. After the stepped structure abuts against the bottom of the adjustment slide 23, the stepped structure can apply reverse pressure to the step adjustment member 24. The step adjustment member 24 can apply pressure to the piston end of the damper 4 through the transmission of the damper push seat 25, so that the door panel 8 can achieve the door closing action under the damping buffering of the damper 4.

[0047] In the above-mentioned embodiment, it is preferred that the stepped structure of the step adjuster 24 adopts preset specifications so that the door panel 8 can trigger the damping buffer of the damper 4 when the distance is closed by 10° and 30° respectively.

[0048] like Figure 6 and Figure 7As shown, in the above embodiment, preferably, the torsion spring 3 is installed in the mounting holes 211 on both sides of one end of the first transmission plate 21 through the mounting shaft through the spring body, and the other end of the first transmission plate 21 is relatively fixed to the door panel assembly 2 through the fixing hole 212, and the mounting hole 211 is closer to the inner side of the door panel 8 by a preset distance than the vertical distance of the fixing hole 212 relative to the door panel 8, so that when one end of the fixing hole 212 of the first transmission plate 21 is in a vertical state relative to the fixed plate assembly 1, the door panel 8 is in an obtuse angle state relative to the fixed side 7.

[0049] In this embodiment, by improving the transmission structure between the fixed plate assembly 1 and the door panel assembly 2, the installation plane of the door panel 8 is tilted outward compared to the transmission plane of the transmission structure, so that the door opening angle can be in an obtuse angle state when the transmission structure is opened vertically. This design allows the hinge to be applied to door panels 8 that are thicker than the prior art without collision when opening.

[0050] In the above embodiment, preferably, the mounting hole 211 is 1 mm closer to the inner side of the door panel 8 than the vertical distance of the fixing hole 212 relative to the door panel 8, so that when one end of the fixing hole 212 of the first transmission plate 21 is in a vertical state relative to the fixed plate assembly 1, the door panel 8 is at 93° to 95° relative to the fixed side 7.

[0051] During the implementation process, the specification design of the structure and the specific dimensions of the improved structure can also be adjusted according to actual conditions.

[0052] In the above-described embodiment, it is preferred that the fixing plate assembly 1 further comprises a connecting plate bracket seat 12 , a first connecting plate 13 , and a connecting base 14 ;

[0053] The connecting plate bracket seat 12 adopts a hollow slotted structure, and the L-shaped connecting plate 11, the first connecting plate 13 and the connecting seat 14 are stacked in the connecting plate bracket seat 12 from the outside to the inside relative to the fixed side 7. The connecting plate bracket seat 12 is fixed in the slot body of the fixed side 7 to be installed on the door panel 8, and is fixed by fastening screws 15;

[0054] An adjustment hole is provided with corresponding preset positions of the L-shaped connecting plate 11 and the first connecting plate 13 , and the first connecting plate 13 is hinged on the L-shaped connecting plate 11 through the left and right adjustment rotating shaft 16 ;

[0055] The connection seat 14 is fixed to the connection plate support seat 12 by connecting pot nails 141. The connection seat 14 is provided with back seam adjustment screws 17, left and right adjustment screws 18 and up and down adjustment screws 19 at positions corresponding to the adjustment holes. In addition, a fixing plate decorative cover 5 is also provided on the surface of the fixing plate assembly 1.

[0056] In the above-described embodiment, preferably, the door panel assembly 2 further comprises a door panel hinge seat 26 , a damping fixing seat 27 , and a damping support seat 28 ;

[0057] The door panel hinge seat 26 is fitted and fixed with the damping fixing seat 27 and is fixed in the groove body opened by the door panel 8 ;

[0058] The two groups of dampers 4 are respectively installed in the grooves on both sides of the damping fixing seat 27, the rear end of the damping cylinder of the damper 4 is supported by the damping support seat 28, the piston ends of the dampers 4 on both sides are respectively fixedly sleeved with the two sides of the damping push seat, the damping push seat abuts against the step adjustment member 24, and the step adjustment member 24 abuts against the adjustment slide 23. In addition, a door panel decorative cover 6 is also provided on the surface of the door panel assembly 2.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A speed-adjustable concealed thick door hinge, characterized in that: include: Fixed plate assembly, door panel assembly, torsion spring, damper and transmission assembly; The fixed plate assembly is installed in a slot opened on the fixed side, and the door panel assembly is installed in a slot opened on the door panel; The spring body of the torsion spring is fixed on the first transmission plate of the door panel assembly, and the torsion arms on both sides of the torsion spring are respectively clamped between the second transmission plate of the door panel assembly and the L-shaped connecting plate of the fixed plate assembly; The damper is installed in the door panel assembly, and the first transmission plate is connected to the piston end of the damper through a step buffer adjustment assembly. The step buffer adjustment assembly can step-by-step adjust the transmission stroke between the first transmission plate and the piston end, so that during the door closing process, the first transmission plate can trigger the piston end when it rotates to different angles, so as to achieve damping buffering when the door panel is closed to different angles.

2. The adjustable speed concealed thick door hinge according to claim 1, characterized in that: The step buffer adjustment assembly comprises an adjustment slide and a step adjustment member, the adjustment slide is slidably installed in a slide groove provided on the first transmission sheet, the step adjustment member is provided with a stepped structure on both sides of the slide groove along the sliding direction, the bottom of the adjustment slide is in contact with the step adjustment member, and the step adjustment member is transmission-connected with the piston end of the damper through the damper push seat; During the door closing process, the door panel can drive the step adjustment member to rotate toward the first transmission plate under the action of the driving force. After the stepped structure abuts against the bottom of the adjustment slide, the stepped structure can apply reverse pressure to the step adjustment member. The step adjustment member can apply pressure to the piston end of the damper through the transmission of the damper push seat, so that the door panel can achieve the door closing action under the damping buffer of the damper.

3. The adjustable speed concealed thick door hinge according to claim 1, characterized in that: The stepped structure of the stepped adjustment member adopts preset specifications so that the door panel can trigger the damping buffering of the damper when the door panel is 10° and 30° away from closing, respectively.

4. The adjustable speed concealed thick door hinge according to claim 1, characterized in that: The torsion spring is installed in the mounting holes on both sides of one end of the first transmission plate through the mounting shaft and the spring body. The other end of the first transmission plate is fixed relative to the door panel assembly through the fixing hole. The mounting hole is closer to the inner side of the door panel by a preset distance than the vertical distance of the fixing hole relative to the door panel, so that when one end of the fixing hole of the first transmission plate is in a vertical state relative to the fixed plate assembly, the door panel is in an obtuse angle state relative to the fixed side.

5. The adjustable speed concealed thick door hinge according to claim 2, characterized in that: The mounting hole is 1 mm closer to the inner side of the door panel than the vertical distance of the fixing hole relative to the door panel, so that when one end of the fixing hole of the first transmission plate is vertical relative to the fixing plate assembly, the door panel is at 93° to 95° relative to the fixing side.

6. The adjustable speed concealed thick door hinge according to claim 1, characterized in that: The fixing plate assembly also includes a connecting plate bracket seat, a first connecting plate and a connecting seat; The connecting plate bracket seat adopts a hollow slotted structure, and the L-shaped connecting plate, the first connecting plate and the connecting seat are sequentially stacked in the connecting plate bracket seat from the outside to the inside relative to the fixed side, and the connecting plate bracket seat is fixed in the slot body of the fixed side where the door panel is to be installed, and is fixed by tightening screws; The L-shaped connecting plate and the first connecting plate are provided with adjustment holes at corresponding preset positions, and the first connecting plate is hinged to the L-shaped connecting plate through left and right adjustment shafts; The connecting seat is fixed on the connecting plate bracket seat by connecting pot nails, and the positions of the connecting seat corresponding to the adjusting holes are provided with back seam adjusting screws, left and right adjusting screws and up and down adjusting screws.

7. The adjustable speed concealed thick door hinge according to claim 1, characterized in that: The door panel assembly also includes a door panel hinge seat, a damping fixing seat and a damping supporting seat; The door panel hinge seat is engaged and fixed with the damping fixing seat, and is fixed in the groove body opened in the door panel; The two groups of dampers are respectively installed in the grooves on both sides of the inside of the damping fixing seat, the rear end of the damping cylinder of the damper is supported by the damping support seat, the piston ends of the dampers on both sides are respectively fixedly sleeved on both sides of the damping push seat, the damping push seat is abutted against the step adjustment member, and the step adjustment member is abutted against the adjustment slide seat.

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