An adjustable hydraulic hinge

Abstract

This utility model relates to the field of hinge technology and discloses an adjustable hydraulic hinge, including two adjusting brackets, a connecting shaft, and a knob. Two connecting parts are rotatably connected to the outer wall of the connecting shaft. Leaf plates are rotatably connected to the left and right sides of the outer walls of the two connecting parts. A sliding groove is formed on the front side of each of the two adjusting brackets, and a limiting groove is formed on the rear side of each of the two adjusting brackets. Multiple screw holes are formed on the front side of each leaf plate. A reinforcing bolt is threaded into the inner side of each screw hole. The rear end of the reinforcing bolt passes through the inner side of the sliding groove and is threaded to a fixing disc. The outer wall of the fixing disc is slidably connected to the inner side of the limiting groove. In this utility model, the adjusting bracket is pre-embedded in the groove between the door frame and the door panel. After the reinforcing bolt is connected into the leaf plate, the reinforcing bolt passes through the sliding groove and connects to the fixing disc in the limiting groove, achieving simple and quick height adjustment, reducing the complexity of the internal structure, and lowering production costs.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to an adjustable hydraulic hinge. Background Technology

[0002] Hydraulic hinges, as key connecting components in modern architecture and furniture, play an extremely important role in daily life. They are mainly used to enable the opening and closing of movable parts of doors, windows, and cabinets. Unlike traditional hinges, hydraulic hinges incorporate a hydraulic system, giving them unique performance advantages. In the furniture industry, they can improve the comfort and safety of furniture use, making furniture doors open and close more smoothly and reducing the risk of collision damage caused by rapid opening and closing.

[0003] A search revealed Chinese Patent Publication No. CN205314750U, which discloses a hydraulic hinge, including a door frame fixed hinge and a rotating hinge. The door frame fixed hinge is fixed to the door frame, and the rotating hinge is fixed to the door. Both the door frame fixed hinge and the rotating hinge have a lower receiving tank and an upper receiving tank, respectively. The upper and lower receiving tanks are separated by a planar bearing. The top of the upper receiving tank is sealed by an upper end cap, which has multiple uprights. Inside the upper receiving tank is a mandrel and a connecting sleeve. The mandrel has multiple arc-shaped holes through which the uprights pass. The upper end cap and the mandrel are joined together by a first speed-adjusting screw. The upper receiving tank and the mandrel are fixed by a fixing pin. This hydraulic hinge uses hydraulic pressure to provide damping, allowing the door to open and close slowly without producing loud noise. Furthermore, the internal positioning pin provides positioning during door opening. However, in actual use, the above-mentioned device has the following problems: the height adjustment of the hinge is not precise enough, and multiple measurements and disassemblies are required during installation. This causes the gap between the hinge and the door panel to become loose, and the installation process is time-consuming. Therefore, an adjustable hydraulic hinge is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an adjustable hydraulic hinge, which aims to improve the problem that the height adjustment of existing hinges is not precise enough, and multiple measurements and disassemblies are required during installation, which can cause the gap between the hinge and the door panel to become loose.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable hydraulic hinge, comprising two adjusting frames, a connecting shaft, and a knob. Two connecting members are rotatably connected to the outer wall of the connecting shaft. Leaf plates are rotatably connected to the left and right sides of the outer walls of the two connecting members. A sliding groove is provided on the front side of each of the two adjusting frames, and a limiting groove is provided on the rear side of each of the two adjusting frames. Multiple screw holes are provided on the front side of each leaf plate. A reinforcing bolt is threaded into the inner side of each screw hole. The rear end of the reinforcing bolt passes through the inner side of the sliding groove and is threaded into a fixing disc. The outer wall of the fixing disc is slidably connected to the inner side of the limiting groove. A plug-in assembly is provided on the inner side of the adjusting frame, and a limiting mechanism is provided on the inner side of the connecting shaft.

[0006] The above technical solution involves: firstly, a groove is made between the door panel and the door frame, and the adjusting bracket is installed in the groove for pre-embedding. The leaf plate is then slid in the adjusting bracket, and a reinforcing bolt is connected into the leaf plate and threaded through the sliding groove to the fixed disc. Through repeated rotation, the fixed disc is engaged in the limiting groove on the rear side of the adjusting bracket. The limiting groove and the two sides of the fixed disc are engaged to achieve height adjustment of the hydraulic hinge. This structure is more cost-effective and easier to operate.

[0007] As a further description of the above technical solution:

[0008] The limiting mechanism includes a screw, which is rotatably connected to the top of the connecting shaft. The bottom of the outer wall of the screw passes through the top of the connecting shaft and is threadedly connected to a sliding block. A rotating component is fixedly connected to the outer wall of the sliding block. A sliding groove is provided on the front side of the outer wall of the connecting shaft. A limiting rod is slidably connected to the inner side of the sliding groove. The rear end of the limiting rod is fixedly connected to the front side of the outer wall of the rotating component.

[0009] The above technical solution involves a screw located on the upper part of the connecting shaft, which does not affect the normal use of the hydraulic hinge. A sliding block is installed on the outer wall of the screw, and the sliding block slides up and down by rotating the screw. The rotating part and the limiting rod are integrally formed. At the same time, a sliding groove with an angle is provided on the outer wall of the connecting shaft, and the limiting rod slides in the sliding groove. In this way, by rotating the screw, the limiting rod is placed at different angles on the connecting shaft, which limits the angle of the flap and provides real-time angle limiting, thus improving practicality.

[0010] As a further description of the above technical solution:

[0011] The plug-in assembly includes two plug plates, both of which are fixedly connected to the opposite side of the two page plates, and slots are provided on the inner side of both adjustment frames.

[0012] With the above technical solution, the page plate and the insert plate are integrally formed. When the page plate is connected to the adjustment frame, the insert plate is inserted into the slot and slides up and down to limit its movement, which is more stable.

[0013] As a further description of the above technical solution:

[0014] The limiting mechanism also includes a sealing ring, the inner side of which is fixedly connected to the top of the outer wall of the screw.

[0015] The above technical solution involves connecting the sealing ring to the screw to ensure internal sealing and prevent liquid leakage or dust blockage.

[0016] As a further description of the above technical solution:

[0017] The bottom of the knob is fixedly connected to the top of the screw, and the top of the knob has a plum blossom groove.

[0018] With the above technical solution, the knob and the screw are fixed to each other, and the knob makes it easy to rotate the screw, making operation more convenient.

[0019] As a further description of the above technical solution:

[0020] The front side of the adjustment frame has multiple screw holes, and the inner side of each screw hole is threaded with a bolt.

[0021] The above technical solution involves reinforcing the adjustment frame with bolts to ensure a secure installation.

[0022] As a further description of the above technical solution:

[0023] A wear-resistant sleeve is fixedly connected to the outer wall of the knob, and a protrusion is fixedly connected to the outer wall of the wear-resistant sleeve.

[0024] The above technical solution involves the knob and the wear-resistant sleeve being integrally molded. The protrusions on the outer wall of the wear-resistant sleeve can improve friction and make rotation more convenient.

[0025] As a further description of the above technical solution:

[0026] The upper and lower sides of the connector are fixedly connected with sealing rings two, and the bottom end of the connecting shaft is provided with a speed regulating groove.

[0027] The above technical solution involves sealing the connector and the connecting shaft with a second sealing ring to prevent liquid leakage.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the adjustment bracket is pre-embedded in the groove between the door frame and the door panel, and is reinforced by bolts. After the reinforcing bolt is connected into the leaf plate, the reinforcing bolt passes through the sliding groove and the fixed disc in the limiting groove and connects. When it is loose, the reinforcing bolt and the fixed disc can be freely adjusted in the limiting groove and the sliding groove, realizing simple and quick height adjustment, reducing the complicated internal structure, reducing production costs, and making it easier to adjust.

[0030] 2. In this utility model, the screw is set inside the upper end of the connecting shaft, and the sliding block is threadedly installed through the screw. When the screw is rotated, the sliding block slides downward under the limiting pressure between the limiting rod and the sliding groove, and the angle of the leaf plate is limited by the extended limiting rod. In order to prevent the wind from affecting the opening and closing state of the door when the door is open, the limiting mechanism can ensure the opening and closing angle and improve practicality. Attached Figure Description

[0031] Figure 1 This is a perspective view of an adjustable hydraulic hinge proposed in this utility model;

[0032] Figure 2 This is a front view of an adjustable hydraulic hinge proposed in this utility model;

[0033] Figure 3 This is a split view of the adjustment plate of an adjustable hydraulic hinge proposed in this utility model;

[0034] Figure 4 This is a schematic diagram of the limiting groove of an adjustable hydraulic hinge proposed in this utility model;

[0035] Figure 5 This is a schematic diagram of the limiting mechanism for an adjustable hydraulic hinge proposed in this utility model.

[0036] Legend:

[0037] 1. Adjusting frame; 2. Limiting mechanism; 201. Screw; 202. Sliding block; 203. Rotating component; 204. Sliding groove; 205. Limiting rod; 206. Sealing ring one; 3. Connecting shaft; 4. Connecting component; 5. Leaf plate; 6. Sliding groove; 7. Limiting groove; 8. Screw hole one; 9. Reinforcing bolt; 10. Fixing disc; 11. Insert plate; 12. Slot; 13. Screw hole two; 14. Bolt; 15. Sealing ring two; 16. Knob; 17. Wear-resistant sleeve; 18. Protrusion; 19. Plum blossom groove; 20. Speed ​​regulating groove. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of an adjustable hydraulic hinge, comprising two adjusting frames 1, a connecting shaft 3, and a knob 16. Two connecting parts 4 are rotatably connected to the outer wall of the connecting shaft 3. Leaf plates 5 are rotatably connected to the left and right sides of the outer walls of the two connecting parts 4. The leaf plates 5, connecting parts 4, and connecting shaft 3 together form a hydraulic hinge. Multiple screw holes 13 are provided on the front side of the adjusting frame 1, and bolts 14 are threaded onto the inner side of each screw hole 13. The adjusting frame 1 is embedded in the groove between the door frame and the door panel and is reinforced by the bolts 14. A sliding groove 6 is provided on the adjusting frame 1, with sliding grooves 6 on the front side of both adjusting frames 1 and limit grooves 7 on the rear side of both adjusting frames 1. The sliding grooves 6 and the limit grooves 7 on the rear side of the adjusting frame 1 are interconnected. Multiple screw holes 1 are provided on the front side of the leaf plate 5. 8. A reinforcing bolt 9 is threadedly connected to the inner side of the screw hole 8. The rear end of the reinforcing bolt 9 passes through the inner side of the slide groove 6 and is threadedly connected to a fixing disc 10. The outer wall of the fixing disc 10 is slidably connected to the inner side of the limiting groove 7. After the reinforcing bolt 9 is connected into the page plate 5, the reinforcing bolt 9 passes through the slide groove 6 and is connected to the fixing disc 10 in the limiting groove 7. When it is loose, the reinforcing bolt 9 and the fixing disc 10 can slide freely in the limiting groove 7 and the slide groove 6. The plug-in assembly includes two insert plates 11. The two insert plates 11 are fixedly connected to the opposite side of the two page plates 5. The inner side of the two adjusting frames 1 is provided with slots 12. At the same time, the page plate 5 and the insert plate 11 are integrally formed and are inserted into the slots 12 on the adjusting frame 1. The inner side of the adjusting frame 1 is provided with a plug-in assembly, and the inner side of the connecting shaft 3 is provided with a limiting mechanism 2.

[0040] Specifically, the leaf plate 5, connector 4, and connecting shaft 3 are combined to form the core structure of the hydraulic hinge. The adjusting frame 1 is pre-embedded in the groove between the door frame and the door panel and is reinforced with bolts 14 to ensure its stability and durability. The adjusting frame 1 is provided with a sliding groove 6. The front side of both adjusting frames 1 is provided with a sliding groove 6, and the rear side of both adjusting frames 1 is provided with a limiting groove 7. The sliding groove 6 and the limiting groove 7 on the rear side of the adjusting frame 1 are interconnected, which can ensure the smoothness and accuracy of the leaf plate 5 during adjustment. The front side of the leaf plate 5 is provided with multiple screw holes 8, and the reinforcing bolts 9 are connected into the leaf plate 5. After the middle section, the reinforcing bolt 9 passes through the sliding groove 6 and the fixed disc 10 in the limiting groove 7 to connect. When the connection is loose and needs adjustment, the reinforcing bolt 9 and the fixed disc 10 can slide freely in the limiting groove 7 and the sliding groove 6 to achieve the ideal fastening effect. In addition, the plug-in assembly includes two insert plates 11, which are fixed on the opposite side of the two leaf plates 5. The inner side of the two adjusting frames 1 is provided with slots 12. At the same time, the leaf plates 5 and the insert plates 11 are integrally formed and inserted into the slots 12 on the adjusting frame 1, which makes it easier to adjust and makes the use of the entire hydraulic hinge more flexible and convenient.

[0041] Reference Figure 1 , Figure 2 and Figure 5 The limiting mechanism 2 includes a screw 201, which is rotatably connected to the top of the connecting shaft 3. The screw 201 is located inside the upper part of the connecting shaft 3 and will not affect the normal operation of the internal structure of the hydraulic hinge. The bottom end of the outer wall of the screw 201 passes through the top end of the connecting shaft 3 and is threadedly connected to a sliding block 202. The sliding block 202 is threadedly installed through the screw 201. A rotating component 203 is fixedly connected to the outer wall of the sliding block 202. A sliding groove 204 is opened on the front side of the outer wall of the connecting shaft 3. A limiting rod 205 is slidably connected to the inner side of the sliding groove 204. The rear end of the limiting rod 205 is fixedly connected to the front side of the outer wall of the rotating component 203. The limiting rod 205 and the rotating component 203 are connected to each other. The component 203 and the sliding block 202 are integrally formed. When the screw 201 is rotated, the sliding block 202 slides downward under the limiting compression between the limiting rod 205 and the sliding groove 204. The angle of the leaf plate 5 is limited by the extended limiting rod 205. In order to prevent the wind from affecting the opening and closing state of the door when the door is open, the limiting mechanism 2 can ensure the opening and closing angle and improve practicality. The limiting mechanism 2 also includes a sealing ring 206. The inner side of the sealing ring 206 is fixedly connected to the top of the outer wall of the screw 201. The bottom of the knob 16 is fixedly connected to the top of the screw 201. The top of the knob 16 is provided with a plum blossom groove 19.

[0042] Specifically, the screw 201 is connected to the top of the connecting shaft 3, ensuring that its position is at the upper inner end of the connecting shaft 3. This design does not interfere with the normal operation of the internal structure of the hydraulic hinge. The sliding block 202 is fixed by the threaded installation of the screw 201, and the rotating part 203 is fixed on its outer wall. A sliding groove 204 is opened on the front side of the outer wall of the connecting shaft 3. The sliding groove 204 is beveled, and the limiting rod 205 is slidably connected to the inner side of the sliding groove 204. The limiting rod 205, the rotating part 203, and the sliding block 202 are manufactured by integral molding. This design ensures their tight connection and synchronous movement. When the screw 201 is rotated... When sliding, the sliding block 202 will slide downward along the screw 201 under the limiting and squeezing action between the limiting rod 205 and the sliding groove 204. During the sliding process, the extended part of the limiting rod 205 will precisely limit the angle of the leaf plate 5, thereby ensuring that the door panel can maintain a stable opening and closing state even when affected by wind, which greatly improves the practicality of the door. The inner side of the sealing ring 206 is fixed to the top of the outer wall of the screw 201 to ensure the sealing performance of the mechanism. The bottom of the knob 16 is also fixed to the top of the screw 201. A plum blossom groove 19 is specially opened on the top of the knob 16 for convenient operation and adjustment by the user.

[0043] Reference Figure 1 , Figure 2 and Figure 5 The outer wall of the knob 16 is fixedly connected to a wear-resistant sleeve 17, the outer wall of the wear-resistant sleeve 17 is fixedly connected to a protrusion 18, the upper and lower sides of the connector 4 are fixedly connected to a sealing ring 15, and the bottom end of the connecting shaft 3 is provided with a speed regulating groove 20.

[0044] Specifically, a wear-resistant sleeve 17 is fixed to the outer wall of the knob 16. Several protrusions 18 are also fixed to the outer wall of the wear-resistant sleeve 17. These protrusions 18 are designed to increase the friction between the wear-resistant sleeve 17 and other components to improve the overall stability. Sealing rings 15 are fixed on both the upper and lower sides of the connector 4. The function of these sealing rings 15 is to ensure the sealing when the connector 4 contacts other components and prevent the leakage of liquid or gas. In addition, a speed regulating groove 20 is specially designed at the bottom of the connecting shaft 3. The existence of the speed regulating groove 20 allows the rotation speed of the knob 16 to be controlled by adjusting the material or structure in the groove, thereby achieving the purpose of adjusting the rotation speed of the knob 16.

[0045] Working principle: First, the page plate 5, the connector 4 and the connecting shaft 3 are combined to form a hydraulic hinge. The adjusting frame 1 is embedded in the groove between the door frame and the door panel and is reinforced by bolts 14. After the reinforcing bolt 9 is connected into the page plate 5, the reinforcing bolt 9 passes through the sliding groove 6 and is connected to the fixed disc 10 in the limiting groove 7. When it is loose, the reinforcing bolt 9 and the fixed disc 10 can slide freely in the limiting groove 7 and the sliding groove 6. The insert plate 11 on the page plate 5 is inserted into the slot 12 on the adjusting frame 1.

[0046] Furthermore, the screw 201 is located at the upper end of the inner part of the connecting shaft 3, and the sliding block 202 is threadedly installed through the screw 201. When the screw 201 is rotated, the sliding block 202 slides downward under the limiting compression between the limiting rod 205 and the sliding groove 204, and the angle of the leaf plate 5 is limited by the extended limiting rod 205. In order to prevent the wind from affecting the opening and closing state of the door when the door is open, the opening and closing angle can be ensured by the limiting mechanism 2.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable hydraulic hinge, comprising two adjusting brackets (1), a connecting shaft (3), and a knob (16), characterized in that: The outer wall of the connecting shaft (3) is rotatably connected to two connecting parts (4). The left and right sides of the outer walls of the two connecting parts (4) are rotatably connected to the leaf plates (5). The front side of the two adjusting frames (1) is provided with a sliding groove (6). The rear side of the two adjusting frames (1) is provided with a limiting groove (7). The front side of the leaf plate (5) is provided with multiple screw holes (8). The inner side of the screw hole (8) is threaded with a reinforcing bolt (9). The rear end of the reinforcing bolt (9) passes through the inner side of the sliding groove (6) and is threaded with a fixing disc (10). The outer wall of the fixing disc (10) is slidably connected to the inner side of the limiting groove (7). The inner side of the adjusting frame (1) is provided with a plug-in assembly. The inner side of the connecting shaft (3) is provided with a limiting mechanism (2).

2. The adjustable hydraulic hinge according to claim 1, characterized in that: The limiting mechanism (2) includes a screw (201), which is rotatably connected to the top of the connecting shaft (3). The bottom end of the outer wall of the screw (201) passes through the top end of the connecting shaft (3) and is threadedly connected to a sliding block (202). A rotating component (203) is fixedly connected to the outer wall of the sliding block (202). A sliding groove (204) is provided on the front side of the outer wall of the connecting shaft (3). A limiting rod (205) is slidably connected to the inner side of the sliding groove (204). The rear end of the limiting rod (205) is fixedly connected to the front side of the outer wall of the rotating component (203).

3. An adjustable hydraulic hinge according to claim 1, characterized in that: The plug-in assembly includes two plug plates (11), both plug plates (11) are fixedly connected to the opposite side of the two page plates (5), and slots (12) are provided on the inner side of the two adjustment brackets (1).

4. An adjustable hydraulic hinge according to claim 2, characterized in that: The limiting mechanism (2) also includes a sealing ring (206), the inner side of which is fixedly connected to the top of the outer wall of the screw (201).

5. An adjustable hydraulic hinge according to claim 1, characterized in that: The bottom of the knob (16) is fixedly connected to the top of the screw (201), and the top of the knob (16) is provided with a plum blossom groove (19).

6. An adjustable hydraulic hinge according to claim 1, characterized in that: The front side of the adjustment frame (1) is provided with multiple screw holes (13), and the inner side of each screw hole (13) is threaded with a bolt (14).

7. An adjustable hydraulic hinge according to claim 1, characterized in that: The outer wall of the knob (16) is fixedly connected to a wear-resistant sleeve (17), and the outer wall of the wear-resistant sleeve (17) is fixedly connected to a protrusion (18).

8. An adjustable hydraulic hinge according to claim 1, characterized in that: The upper and lower sides of the connector (4) are fixedly connected with sealing rings (15), and the bottom end of the connecting shaft (3) is provided with a speed regulating groove (20).

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