Heavy 90-degree inward-opening invisible hinge

Abstract

The utility model relates to the technical field of hinges, and discloses a heavy 90-degree inward-opening invisible hinge which comprises an L-shaped fixing base and a sliding groove, and a sliding block A is connected into a sliding hole groove A formed in the L-shaped fixing base in a sliding mode. A sliding block B is slidably connected into a sliding hole groove B formed in the sliding groove. A connecting rod device is arranged between the L-shaped fixing base and the sliding groove and comprises a gravity rocker and a gravity rocker arm, the two ends of the gravity rocker arm are rotationally connected with the L-shaped fixing base and the sliding block B respectively, the two ends of the gravity rocker arm are rotationally connected with the sliding block A and an extension rod on the sliding groove respectively, and the gravity rocker arm is rotationally connected with the gravity rocker arm. When the hinge is opened and closed, gravity can be used for assisting in pushing or pulling back the hinge, dependence on other driving mechanisms is reduced, the sliding block A and the sliding block B slide in the sliding hole groove A and the sliding hole groove B, the hinge is allowed to be smoothly opened and closed to 90 degrees, and the gravity rocker and the gravity rocker help the hinge to return to the closed position under the gravity effect. And manual operation is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hinges, and in particular relates to a heavy-duty 90-degree inward-opening invisible hinge. Background Art

[0002] Heavy-duty 90° inward-opening invisible hinges allow doors, windows or other equipment to open and close at a 90° angle, providing a more flexible opening and closing method, especially in situations where a large opening space or special design is required;

[0003] In large opening spaces or special design occasions, hinges often have to bear 30-50 kg of door and window weight. Traditional heavy-duty hinges are just composed of simple slides, fixed seats and connecting rods. The design of traditional hinges may not take into account the wear and stress concentration problems caused by long-term use, which makes the hinge structure prone to fatigue damage in long-term use, making the hinge prone to loosening or damage in long-term use, resulting in poor stability and durability, and problems with opening and closing. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a heavy-duty 90° inward-opening invisible hinge.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heavy-duty 90° inward-opening invisible hinge comprises an L-shaped fixed seat and a slide slot, wherein a slide block A is slidably connected in a slide hole slot A provided on the L-shaped fixed seat; and a slide block B is slidably connected in a slide hole slot B provided on the slide slot;

[0007] A connecting rod device is provided between the L-shaped fixed seat and the slide slot, and the connecting rod device includes a gravity rocker whose two ends are rotatably connected to the L-shaped fixed seat and the slider B respectively, and a gravity rocker arm whose two ends are rotatably connected to the slider A and the extension rod on the slide slot respectively, and the gravity rocker arm is rotatably connected to the gravity rocker.

[0008] The linkage device of the gravity rocker and the gravity rocker arm allows gravity to help push or pull back the hinge when opening and closing the hinge, reducing dependence on other driving mechanisms. Sliders A and B slide in slide hole grooves A and slide hole grooves B, allowing the hinge to open and close smoothly to 90°. The linkage device of the gravity rocker and the gravity rocker arm helps the hinge return to the closed position under the action of gravity, reducing manual operation.

[0009] Preferably, the horizontal part and the vertical part of the L-shaped fixing seat are respectively provided with locking plates which can be stuck in the groove of the aluminum profile of the window frame when rotating. The horizontal part of the L-shaped fixing seat is provided with two locking plates, and the vertical part of the L-shaped fixing seat is provided with one locking plate. The locking plate is connected to the L-shaped fixing seat through a positioning adjustment nut, and the locking plate rotates with the positioning adjustment nut.

[0010] The hinge can be quickly and easily installed on the window frame by snapping the locking plate into the channel of the window frame aluminum profile.

[0011] Preferably, the L-shaped fixing seat is provided with a fixing hole for locking the L-shaped fixing seat on the window frame.

[0012] The fixing holes are designed to be used to securely lock the L-shaped fixing base to the window frame using screws or other fixing devices.

[0013] Preferably, the gravity rocker arm is located above the gravity rocker rod.

[0014] Preferably, the extension rod is rotatably connected to the slide slot, and the extension rod is located above the gravity rocker arm and the slide slot.

[0015] Compared with the prior art, the technical effects and advantages of the utility model are:

[0016] The heavy-duty 90° inward-opening invisible hinge is made of high-strength, wear-resistant stainless steel. The design of the gravity rocker and gravity rocker arm helps to evenly distribute the load, reduce stress concentration, and ensure the stability and durability of the hinge system. Sliders A and B slide in slide slots A and B. The connecting rod device of the gravity rocker arm and the gravity rocker arm uses gravity to help push or pull back the hinge, which opens and closes smoothly to 90° under the action of gravity, reducing manual operation.

[0017] The design of the locking plate, positioning adjustment nut and fixing hole enables the hinge to be quickly and easily installed on window frames of different shapes or sizes, and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0019] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle.

[0020] In the figure: 1. L-shaped fixing seat; 2. Slide hole groove A; 3. Slider A; 4. Slide groove; 5. Slide hole groove B; 6. Slider B; 7. Gravity rocker; 8. Gravity rocker arm; 9. Locking plate; 10. Positioning adjustment nut; 11. Fixing hole; 12. Extension rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The following is combined with Figure 1-2 To further explain this application in detail,

[0023] The embodiment of the present application discloses a heavy-duty 90° inward-opening invisible hinge, comprising an L-shaped fixing seat 1 and a slide groove 4, wherein a sliding block A3 is slidably connected in a sliding hole groove A2 provided on the L-shaped fixing seat 1; a sliding block B6 is slidably connected in a sliding hole groove B5 provided on the slide groove 4;

[0024] A connecting rod device is provided between the L-shaped fixed seat 1 and the slide groove 4, and the connecting rod device includes a gravity rocker 7 whose two ends are rotatably connected to the L-shaped fixed seat 1 and the slider B6 respectively, and a gravity rocker arm 8 whose two ends are rotatably connected to the slider A3 and the extension rod 12 on the slide groove 4 respectively, and the gravity rocker arm 8 is rotatably connected to the gravity rocker 7.

[0025] The hinge with the matched design of the L-shaped fixing seat 1 and the sliding groove 4 is very practical in doors and windows or other equipment that need to be opened and closed frequently, or especially in an environment that needs to be kept sealed and dustproof. The design of the sliding hole groove A2 and the sliding hole groove B5 may be to accommodate the slider A3 and the slider B6, which slide in the groove to allow the hinge to be opened and closed. The connecting rod device of the gravity rocker 7 and the gravity rocker arm 8 makes it possible to use gravity to help push or pull back the hinge when opening and closing the hinge, reducing the dependence on other driving mechanisms. The slider A3 and the slider B6 slide in the sliding hole groove A2 and the sliding hole groove B5, allowing the hinge to be smoothly opened and closed to 90°. The connecting rod device of the gravity rocker 7 and the gravity rocker arm 8 helps the hinge return to the closed position under the action of gravity, reducing manual operation.

[0026] The hinge is made of high-strength, wear-resistant materials such as stainless steel. The gravity rocker 7 and the gravity rocker arm 8 are set to ensure that the hinge structure can evenly distribute the load and reduce stress concentration. A cycle test machine is used to simulate the repeated opening and closing actions of the hinge. The durability of the hinge has been tested more than 40,000 times. The cycle test machine usually automatically performs the cycle action and records the number of opening and closing times and any abnormal conditions. The test shows that the hinge can still maintain its structural integrity and function under repeated use, and can withstand a weight of 60 kg.

[0027] The horizontal part and the vertical part of the L-shaped fixing seat 1 are respectively provided with locking plates 9 which can be stuck in the aluminum profile channel of the window frame when rotating. The horizontal part of the L-shaped fixing seat 1 is provided with two locking plates 9, and the vertical part of the L-shaped fixing seat 1 is provided with one locking plate 9. The locking plate 9 is connected to the L-shaped fixing seat 1 through a positioning adjustment nut 10, and the locking plate 9 rotates with the positioning adjustment nut 10.

[0028] By inserting the locking piece 9 into the aluminum profile groove of the window frame, the hinge can be quickly and easily installed on the window frame without complicated cutting or processing of the window frame. The design of the locking piece 9 enables it to be stuck in the aluminum profile groove of the window frame when rotating, which can improve the connection stability between the L-shaped fixing seat 1 and the window frame and reduce the loosening of the hinge during use.

[0029] The presence of the positioning adjustment nut 10 allows the position of the locking plate 9 to be fine-tuned to ensure the accuracy of the hinge installation and the correct alignment between the window frame and the hinge. Since the locking plate 9 can rotate following the positioning adjustment nut 10, the hinge can adapt to window frames of different shapes or sizes, increasing the applicability of the hinge.

[0030] The L-shaped fixing seat 1 is provided with a fixing hole 11 for locking the L-shaped fixing seat 1 on the window frame.

[0031] The design of the fixing hole 11 can be used to use screws or other fixing devices to firmly lock the L-shaped fixing seat 1 on the window frame, which can prevent illegal opening and increase the safety of the window. If the hinge needs to be maintained or replaced, the design of the fixing hole 11 makes it easier to disassemble and reinstall.

[0032] The gravity rocker arm 8 is located above the gravity rocker rod 7 .

[0033] The extension rod 12 is rotatably connected to the slide slot 4 , and the extension rod 12 is located above the gravity rocker arm 8 and the slide slot 4 .

[0034] The extension rod 12 can provide a balancing effect during the opening and closing process, helping the gravity rocker arm 8, the gravity rocker arm 7 and the sliders A3 and B6 to maintain smooth movement during opening and closing, and reducing vibration and noise. The presence of the extension rod 12 can increase the stability of the entire hinge system, especially when bearing a weight of 60 kg. It helps to disperse and bear the weight and prevent the hinge system from excessive bending or deformation due to heavy loads. Since the extension rod 12 is located above the gravity rocker arm 8 and the slide slot 4, it can help guide the movement trajectory and ensure that the hinge can move smoothly during opening and closing while avoiding interference with other components. The design and position of the extension rod 12 help to improve the durability of the hinge system because it can reduce direct friction between moving parts and extend the service life of the hinge.

[0035] The heavy-duty 90° inward-opening invisible hinge has a slider B6 slidably connected in the slide hole groove B5 opened on the L-shaped fixing seat 1 and the slide groove 4, and a slider A3 slidably connected in the slide hole groove A2. These sliders slide in their respective grooves to allow the hinge to open and close. The gravity rocker 7 and the gravity rocker arm 8 are rotatably connected to the L-shaped fixing seat 1, the slider A3, the slider B6 and the extension rod 12 respectively. The connecting rod device of the gravity rocker 7 and the gravity rocker arm 8 uses gravity to help push or pull back the hinge, reducing dependence on other driving mechanisms. The extension rod 12 is rotatably connected to the slide groove 4 and is located above the gravity rocker arm 8 and the slide groove 4. Its design helps balance and guide, reduces vibration and noise, and increases the stability and durability of the system.

[0036] The horizontal and vertical parts of the L-shaped fixing seat 1 are respectively provided with locking plates 9, which can be connected to the L-shaped fixing seat 1 through positioning adjustment nuts 10 and stuck in the aluminum profile channel of the window frame when rotating to improve the stability and anti-loosening performance of the connection. The hinge uses high-strength and wear-resistant materials such as stainless steel, and has been tested more than 40,000 times by a cycle testing machine to ensure its durability and load-bearing capacity.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heavy-duty 90° inward-opening invisible hinge, characterized in that: include: An L-shaped fixing seat (1), wherein a sliding block A (3) is slidably connected in a sliding hole groove A (2) provided on the L-shaped fixing seat (1); A slide groove (4), wherein a slide block B (6) is slidably connected in a slide hole groove B (5) provided on the slide groove (4); A connecting rod device is provided between the L-shaped fixing seat (1) and the slide groove (4), and the connecting rod device comprises a gravity rocker (7) whose two ends are respectively rotatably connected to the L-shaped fixing seat (1) and the slider B (6), and a gravity rocker arm (8) whose two ends are respectively rotatably connected to the slider A (3) and the extension rod (12) on the slide groove (4), and the gravity rocker arm (8) is rotatably connected to the gravity rocker arm (7).

2. A heavy-duty 90° inward-opening invisible hinge according to claim 1, characterized in that: The horizontal part and the vertical part of the L-shaped fixing seat (1) are respectively provided with locking plates (9) which can be stuck in the channel of the aluminum profile of the window frame when rotating. The horizontal part of the L-shaped fixing seat (1) is provided with two locking plates (9), and the vertical part of the L-shaped fixing seat (1) is provided with one locking plate (9). The locking plate (9) is connected to the L-shaped fixing seat (1) through a positioning adjustment nut (10), and the locking plate (9) rotates following the positioning adjustment nut (10).

3. A heavy-duty 90° inward-opening invisible hinge according to claim 2, characterized in that: The L-shaped fixing seat (1) is provided with a fixing hole (11) for locking the L-shaped fixing seat (1) on the window frame.

4. The heavy-duty 90° inward-opening invisible hinge according to claim 1, characterized in that: The gravity rocker arm (8) is located above the gravity rocker rod (7).

5. The heavy-duty 90° inward-opening invisible hinge according to claim 1, characterized in that: The extension rod (12) is rotatably connected to the slide groove (4), and the extension rod (12) is located above the gravity rocker arm (8) and the slide groove (4).

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