Damping door stop structure based on frame cabinet

Abstract

This utility model relates to a damping door stop structure based on a frame cabinet, belonging to the technical field of frame cabinet accessories. It includes a three-hinged linkage mechanism consisting of a fixed hinge, a connecting hinge, and a driving hinge. Friction damping at each hinge joint is adjusted via disc springs and hexagonal socket screws, allowing the outer hinge door panel to stop at any angle. The T-shaped first fold of the second linkage abuts against and limits the movement of the reinforcing square tube. The driving hinge is fixed to the door panel assembly via a hinge seat angle plate, and the fixed hinge is locked into the frame beam. The structure uses a combination of standard parts and sheet metal components, achieving a low-cost and easily assembled damping and stopping function.

Description

Technical Field

[0001] This utility model relates to the field of frame cabinet accessories technology, and in particular to a damping door stop structure based on a frame cabinet. Background Technology

[0002] With the development of technology in the cabinet manufacturing field, door stop technology has emerged to limit the opening angle of cabinet doors. This technology protects the hinge mechanism between the connecting frame and the door panel. By limiting the maximum opening angle of the door panel, problems such as damage to the hinge body, deformation of the door panel frame, and failure of the cabinet door panel can be avoided. This leads to the application of door stop devices and related devices in cabinets.

[0003] In related technologies, for door panels using internal hinges, the maximum opening angle can be controlled within 135 degrees under the restriction of the door stopper; for door panels using external hinges, although the maximum opening angle can reach 180 degrees, the door stoppers currently used with internal hinges are not compatible with them, and cabinet manufacturers do not provide door stoppers compatible with external hinges, so users need to solve the door panel opening angle limitation problem themselves.

[0004] However, the aforementioned door stop devices have the following problems: There is a type of customer who, in relation to cabinet manufacturers, not only requires manufacturers to provide door stop devices that match the external hinges, but also limits the maximum opening angle of the door panel to no more than 160 degrees, and requires the cabinet door panel to be able to stop and remain at any angle within the range of the opening to the limit angle of 160 degrees; it is currently difficult to provide door stop products that meet these requirements. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a damping door stop structure based on a frame cabinet, thereby ensuring that the cabinet door panel with external hinges can be opened and closed smoothly, and after the external force is removed, the cabinet door panel can stop at any angle within the angle range and remain in the current stopped state.

[0006] The technical solution adopted in this utility model is as follows: A damping door stop structure based on a frame cabinet, comprising:

[0007] Fixed hinge, connecting hinge, driving hinge, first connecting rod, second connecting rod, disc spring, hex socket screw, hex lock nut and hinge seat plate;

[0008] The fixed hinge, connecting hinge and driving hinge are hinged together by the first link and the second link to form a three-hinged linkage mechanism.

[0009] At least one disc spring is axially arranged at each hinge point. The disc spring is clamped between an internal hexagon screw and a hexagonal lock nut. The compression of the disc spring is controlled by adjusting the tightness of the internal hexagon screw to form frictional damping between the hinge surfaces.

[0010] The driving hinge is fixedly connected to the first reinforcing square tube of the door panel assembly via the hinge seat corner plate, and the fixed hinge is fixedly connected to the crossbeam of the frame assembly.

[0011] The second link is provided with a first folded edge, which is used to limit the maximum opening angle of the door panel assembly.

[0012] As a further improvement to the above technical solution:

[0013] Preferably, the fixed hinge includes a hinge block, and the top and bottom surfaces of the hinge block are respectively provided with a first countersunk hole and a second countersunk hole; the fixed hinge is formed by connecting the internal hexagon screw, the hinge block, one end of the first connecting rod, the disc spring, the flat washer and the hexagonal lock nut from bottom to top.

[0014] Preferably, the connecting hinge includes a first through hole of the first connecting rod and a second through hole of the second connecting rod; the connecting hinge is formed by connecting hexagonal screws, flat washers, disc springs, second through holes, first through holes, disc springs, flat washers and hexagonal lock nuts in sequence from top to bottom; the outer contour of the first connecting rod is concave arc-shaped to avoid the columns of the frame assembly.

[0015] Preferably, the driving hinge includes a fourth through hole in the hinge base plate; the driving hinge is formed by connecting the following components from top to bottom in sequence: an internal hexagonal screw, a flat washer, a disc spring, the fourth through hole, the second through hole of the second connecting rod, a disc spring, a flat washer, and a hexagonal anti-loosening nut; the hinge base plate is locked to the modular hole of the door panel assembly by a self-tapping screw.

[0016] Preferably, the disc springs at the fixed hinge, connecting hinge, and driving hinge are configured such that: at least one disc spring is provided on one side of the axial direction of the fixed hinge, and at least one disc spring is provided on both sides of the axial direction of the connecting hinge and the driving hinge.

[0017] Preferably, the outer contour of the second connecting rod is T-shaped, and the first folded edge is located at the end of the T-shape. During assembly, it abuts against the first reinforcing square tube and the second reinforcing square tube to limit the opening angle of the door panel assembly.

[0018] Preferably, the frame assembly includes a corner tee and a crossbeam, and the fixing hinge is locked into the screw hole of the corner tee by an internal hex screw to achieve fixation with the crossbeam.

[0019] Preferably, the door panel assembly includes a door hinge, which is fixedly connected to the column of the frame assembly, and the door panel assembly achieves single-degree-of-freedom rotation through the door hinge.

[0020] Preferably, the hinge base corner plate is provided with a third through hole and a folded edge lug. The third through hole is aligned with the modular hole and then locked with a self-tapping screw. The folded edge lug is fitted with the first reinforcing square tube.

[0021] Preferably, the damping stop is folded and stored in the inner cavity of the frame assembly when the door panel assembly is closed, and there is no interference between the outer contour of the damping stop and the inner wall of the frame assembly.

[0022] The beneficial effects of this utility model are as follows:

[0023] This utility model has a compact structure. Through precise damping adjustment, disc springs are axially arranged at each hinge (fixed hinge, connecting hinge, driving hinge). The compression amount is adjusted by the internal hex screw to form a finely adjustable friction damping, ensuring that the door panel stops at any angle.

[0024] This utility model also has the following advantages:

[0025] (1) This utility model adopts a combination of standard parts (disc spring, flat washer, hexagonal anti-loosening nut) and sheet metal parts (hinge seat angle plate, first connecting rod) to reduce the cost of non-standard customization and support mass production;

[0026] (2) The concave arc outer contour of the first link of this utility model avoids the frame column 1003, and the second link is folded and stored in the inner cavity of the frame to avoid interference with the frame when closed.

[0027] (3) The fixed hinge of this utility model is locked to the crossbeam through an angle tee, and the driving hinge is connected to the modular hole of the door panel through a self-tapping screw, which simplifies the on-site installation process and reduces the requirements for operators.

[0028] (4) The double-sided countersunk hole design of the hinge block and the folded edge lug of the hinge corner plate of this utility model are used to enhance the connection strength with the frame and door panel and improve the long-term reliability. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the structure of the present invention under an explosive state.

[0031] Figure 3 This is a schematic diagram of the installation status of the damping stop valve of this utility model in a cabinet environment.

[0032] Figure 4 This is a schematic diagram of the completed state of the damping stop valve of this utility model in a cabinet environment.

[0033] Figure 5 This is a schematic diagram of the closed state of the damping door stopper of this utility model in a cabinet environment.

[0034] Among them: 10, hinge block; 20, first connecting rod; 30, second connecting rod; 40, hinge angle plate; 50, disc spring; 60, flat washer; 70, hexagonal lock nut; 80, internal hexagonal screw; 90, damping door stop; 100, frame assembly; 200, self-tapping screw; 300, door panel assembly; 400, fixed hinge; 500, connecting hinge; 600, driving hinge;

[0035] 101. Bottom surface; 102. First countersunk hole; 103. Top surface; 104. Second countersunk hole;

[0036] 201. First via;

[0037] 301, flange; 302, first folded edge; 303, second through hole;

[0038] 401. Substrate sheet; 402. Third via; 403. Second folded edge; 404. Folded edge lug; 405. Fourth via;

[0039] 1001. Angle tee; 1002. Screw; 1003. Post; 1004. Crossbeam;

[0040] 3001, First reinforced square tube; 3002, Modular hole; 3003, Second reinforced square tube; 3004, Door hinge. Detailed Implementation

[0041] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0042] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0045] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0046] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0047] like Figures 1-5 The accompanying drawing shows a schematic diagram of a damping stop valve structure based on a frame cabinet according to an embodiment of the present invention; for ease of description, the drawing only shows the structure related to the embodiment of the present invention.

[0048] Please see Figures 1-2 In this embodiment, a damping door stop structure based on a frame cabinet is provided, comprising:

[0049] The three-hinged linkage mechanism includes a fixed hinge 400, a connecting hinge 500, and a driving hinge 600, which are hinged and linked together by a first link 20 and a second link 30. At the same time, each hinge is equipped with a disc spring 50, an internal hexagonal screw 80, a flat washer 60, and a hexagonal lock nut 70 to adjust the frictional resistance.

[0050] In this embodiment, the hinge block 10 is fixed to the crossbeam 1004 of the frame assembly 100, and the hinge corner plate 40 is connected to the first reinforcing square tube 3001 of the door panel assembly 300 by self-tapping screws 200.

[0051] In this embodiment, the T-shaped outer end of the second connecting rod 30 is provided with a first folded edge 302, which abuts against the first reinforcing square tube 3001 and the second reinforcing square tube 3003, limiting the maximum opening angle of the door panel to 160°.

[0052] Furthermore, the assembly process of the fixed hinge 400 in this embodiment is as follows:

[0053] The bottom surface 101 and top surface 103 of the hinge block 10 are respectively provided with a first countersunk hole 102 and a second countersunk hole 104 for double-sided locking;

[0054] The internal hex screw 80 is passed through the first countersunk hole 102 of the hinge block 10 from below, and then connected in sequence to one end of the first connecting rod 20, the disc spring 50, and the flat washer 60, and finally locked by the hex lock nut 70.

[0055] The hinge block 10 is locked into the screw hole 1002 of the angle tee 1001 of the crossbeam 1004 of the frame assembly 100 by an internal hex screw 80, thereby fixing it to the frame.

[0056] Furthermore, the assembly process of the connecting hinge 500 in this embodiment is as follows:

[0057] The hinge between the first link 20 and the second link 30:

[0058] The outer contour of the first connecting rod 20 is concave arc-shaped, and the concave arc side is used to avoid the frame column 1003;

[0059] The second through hole 303 of the second link 30 is aligned with the first through hole 201 of the first link 20;

[0060] Insert the hexagon socket screw 80, flat washer 60, disc spring 50, second through hole 303, first through hole 201, disc spring 50, flat washer 60 in sequence from top to bottom, and finally lock it with hexagon lock nut 70;

[0061] The compression of the dual disc springs 50 is controlled by adjusting the tightness of the internal hex screws 80 to form a suitable frictional damping.

[0062] Furthermore, the assembly process of the drive hinge 600 in this embodiment is as follows:

[0063] Connection between hinge base plate 40 and door panel:

[0064] The base plate 401 of the hinge angle plate 40 has a third through hole 402 and a fourth through hole 405, and the folded lug 404 is attached to the first reinforcing square tube 3001;

[0065] Insert the hex socket screw 80 from top to bottom into the flat washer 60, disc spring 50, fourth through hole 405, second through hole 303 of second connecting rod 30, disc spring 50, and flat washer 60, and then lock it with hex lock nut 70.

[0066] The third through hole 402 of the hinge base corner plate 40 is aligned with the modular hole 3002 of the door panel assembly 300 and locked by the self-tapping screw 200 to realize the linkage between the drive hinge 600 and the door panel.

[0067] In this embodiment, the angle limiting mechanism is as follows:

[0068] When the door panel is opened, the T-shaped first folded edge 302 of the second link 30 rotates with the drive hinge 600 until it abuts against the first reinforcing square tube 3001 and the second reinforcing square tube 3003, and the mechanically limited door panel opening angle is 160°.

[0069] In this embodiment, the damping adjustment method is as follows:

[0070] By finely adjusting the internal hex screws 80 at the fixed hinge 400, connecting hinge 500, and driving hinge 600 with a torque wrench, the compression of the disc spring 50 is changed, thereby adjusting the frictional resistance of each hinge surface.

[0071] The fixed hinge 400 is equipped with one disc spring 50 on one side, and the connecting hinge 500 and the driving hinge 600 are equipped with two disc springs 50 on each side to ensure uniform damping distribution.

[0072] Please see Figure 3 In this embodiment, the pre-assembly process of the frame and door panel is as follows:

[0073] Lock the door hinge 3004 to the frame column 1003 and insert it into the door panel assembly 300 to form a single-degree-of-freedom rotation structure.

[0074] The fixed hinge 400 is fixed to the crossbeam 1004 via the angle tee 1001, and the driving hinge 600 is connected to the door panel module hole 3002 via the self-tapping screw 200.

[0075] Please see Figure 4 In this embodiment, the completed state of the frame and door panel is as follows:

[0076] When the door panel is opened to 160°, the first folded edge 302 abuts against the reinforcing square tube, and the damping door stopper 90 is in the extended state.

[0077] Please see Figure 5 In this embodiment, the closed states of the frame and door panel are as follows:

[0078] When the door panel is closed, the damping stopper 90 folds and is stored in the inner cavity of the frame, and its outer contour does not interfere with the frame assembly 100.

[0079] The structure of this utility model is reasonable. The elastic reaction force of the disc spring 50 is converted into frictional damping, and the door panel can be stably stopped at any position within 0°-160°. At the same time, the hinge block 10, the first connecting rod 20, and the second connecting rod 30 are made by laser cutting and bending, which eliminates the need for non-standard processing. The damping stop device 90 is pre-assembled and stored as a whole, and can be directly locked during final assembly, saving debugging time and requiring less skill from operators.

[0080] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A damping door stop structure based on a frame cabinet, characterized in that, include: Fixed hinge (400), connecting hinge (500), driving hinge (600), first connecting rod (20), second connecting rod (30), disc spring (50), internal hex screw (80), hex lock nut (70) and hinge seat angle plate (40); The fixed hinge (400), connecting hinge (500) and driving hinge (600) are hinged together by the first link (20) and the second link (30) to form a three-hinged linkage mechanism. At least one disc spring (50) is axially arranged at each hinge point. The disc spring (50) is clamped between an internal hexagonal screw (80) and a hexagonal lock nut (70). The compression of the disc spring (50) is controlled by adjusting the tightness of the internal hexagonal screw (80) to form frictional damping between the hinge surfaces. The drive hinge (600) is fixedly connected to the first reinforcing square tube (3001) of the door panel assembly (300) via the hinge seat corner plate (40), and the fixed hinge (400) is fixedly connected to the crossbeam (1004) of the frame assembly (100). The second link (30) is provided with a first folded edge (302), which is used to limit the maximum opening angle of the door panel assembly (300).

2. The damping door stop structure based on a frame cabinet according to claim 1, characterized in that, The fixed hinge (400) includes a hinge block (10), and the top surface (103) and bottom surface (101) of the hinge block (10) are respectively provided with a first countersunk hole (102) and a second countersunk hole (104); The fixed hinge (400) is formed by connecting the following components from bottom to top: an internal hexagonal screw (80), a hinge block (10), one end of the first connecting rod (20), a disc spring (50), a flat washer (60), and a hexagonal lock nut (70).

3. The damping door stop structure based on a frame cabinet according to claim 1, characterized in that, The connecting hinge (500) includes a first through hole (201) of the first connecting rod (20) and a second through hole (303) of the second connecting rod (30); The connecting hinge (500) is formed by connecting the following components from top to bottom: hexagonal screw (80), flat washer (60), disc spring (50), second through hole (303), first through hole (201), disc spring (50), flat washer (60) and hexagonal lock nut (70). The outer contour of the first link (20) is concave arc-shaped to avoid the column (1003) of the frame assembly (100).

4. The damping door stop structure based on a frame cabinet according to claim 1, characterized in that, The drive hinge (600) includes a fourth through hole (405) in the hinge seat corner plate (40); The drive hinge (600) is formed by connecting the following components from top to bottom: an internal hexagonal screw (80), a flat washer (60), a disc spring (50), a fourth through hole (405), the second through hole (303) of the second connecting rod (30), a disc spring (50), a flat washer (60), and a hexagonal anti-loosening nut (70). The hinge base plate (40) is secured to the modular hole (3002) of the door panel assembly (300) by a self-tapping screw (200).

5. The damping door stop structure based on a frame cabinet according to claim 1, characterized in that, The disc springs (50) at the fixed hinge (400), connecting hinge (500), and driving hinge (600) are configured as follows: The fixed hinge (400) is provided with at least one disc spring (50) on one side of the axial direction, and the connecting hinge (500) and the driving hinge (600) are each provided with at least one disc spring (50) on both sides of the axial direction.

6. The damping door stop structure based on a frame cabinet according to claim 1, characterized in that, The outer contour of the second link (30) is T-shaped, and the first folded edge (302) is located at the end of the T-shape. During assembly, it abuts against the first reinforcing square tube (3001) and the second reinforcing square tube (3003) to limit the opening angle of the door panel assembly (300).

7. The damping door stop structure based on a frame cabinet according to claim 1, characterized in that, The frame assembly (100) includes a corner tee (1001) and a crossbeam (1004). The fixing hinge (400) is locked into the screw hole (1002) of the corner tee (1001) by an internal hex screw (80) to achieve fixation with the crossbeam (1004).

8. The damping door stop structure based on a frame cabinet according to claim 1, characterized in that, The door panel assembly (300) includes a door hinge (3004), which is fixedly connected to the column (1003) of the frame assembly (100), and the door panel assembly (300) achieves single-degree-of-freedom rotation through the door hinge (3004).

9. The damping door stop structure based on a frame cabinet according to claim 1, characterized in that, The hinge base plate (40) is provided with a third through hole (402) and a folded edge lug (404). The third through hole (402) is aligned with the modular hole (3002) and then locked by a self-tapping screw (200). The folded edge lug (404) is attached to the first reinforcing square tube (3001).

10. The damping door stop structure based on a frame cabinet according to claim 1, characterized in that, The damping stop (90) is folded and stored in the inner cavity of the frame assembly (100) when the door panel assembly (300) is closed, and there is no interference between the outer contour of the damping stop (90) and the inner wall of the frame assembly (100).

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