Liftable door shaft structure
By using a triangular block structure and screw drive design, the problems of the door hinge being unable to lift and lower and insufficient load-bearing capacity are solved, achieving stable lifting and lowering and bearing a large load.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-11
- Publication Date
- 2026-04-03
AI Technical Summary
The existing door hinge structure cannot be raised or lowered, has poor stability during raising and lowering, and cannot bear large loads.
The design employs a triangular block structure, where the middle triangular block moves laterally via screws, causing the upper triangular block to rise and fall. Combined with the bearing and upright plate design, this achieves stable lifting and lowering of the door hinge, while the triangular blocks bear the weight.
It achieves stable lifting and lowering of the door hinge, can bear a large load, and the lifting components are not easy to loosen.
Smart Images
Figure CN121781828A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of building materials and accessories technology, and specifically relates to a liftable door hinge structure. Background Technology
[0002] A door hinge is a metal component that rotates around the door leaf when it opens and closes, bearing the weight of the door and enabling its rotation. Over time or in special circumstances, the door hinge may need to be raised or lowered to move the door leaf. Currently, most door hinges are fixedly installed on the door leaf or frame, making it impossible to raise or lower them. While some manufacturers have achieved raised or lowered door hinges, their structural limitations often lead to loosening of the lifting components, resulting in poor stability during lifting. Furthermore, the limitations of their lifting components prevent them from bearing heavy loads. Summary of the Invention
[0003] To overcome the shortcomings of the prior art, the present invention provides a liftable door hinge structure.
[0004] This invention is achieved through the following technical solution: A liftable door hinge structure includes a door hinge, characterized in that: a sleeve is provided at the lower part of the door hinge, a lower triangular block is integrally connected above the sleeve, a middle triangular block is provided above the lower triangular block, an upper triangular block is provided above the middle triangular block, the upper triangular block is fixed on the door hinge, a screw is inserted inside the middle triangular block, the inner end of the screw abuts against the inner wall of the door hinge, and the outer end of the screw is placed in the screw hole.
[0005] The sleeve shaft is integrally connected to two vertical plates, with the lower triangular block, middle triangular block, and upper triangular block located between the two vertical plates.
[0006] The upper part of the upright plate has an elongated hole, through which a crossbar is inserted, and the two ends of the crossbar are installed on the door hinge.
[0007] The outer end of the screw is integrally connected to an internal hexagonal nut.
[0008] The bottom of the sleeve shaft is fitted with a bearing, which is mounted on a fixed shaft. The fixed shaft is fixedly mounted on a shaft seat, and the shaft seat is fixed on a shaft seat plate.
[0009] The bearing plate has fixing holes.
[0010] The beneficial effects of this invention are: by rotating the screw, the middle triangular block can be moved laterally, lifting the upper triangular block and thus lifting the door hinge. By rotating the screw in the opposite direction, the door hinge can be lowered under the action of gravity. The lifting and lowering stability is good, and the triangular block can bear a large load by acting as a load-bearing component. Attached Figure Description
[0011] The invention will now be further described with reference to the accompanying drawings.
[0012] Appendix Figure 1 This is a schematic diagram of the structure of the present invention; Appendix Figure 2 For the appendix Figure 1 Explosion structure diagram Figure 1 ; Appendix Figure 3 For the appendix Figure 1 Explosion structure diagram Figure 2 ; Appendix Figure 4 This is a schematic diagram of the main structure for mounting the lower triangular block of the present invention; Appendix Figure 5 This is a schematic diagram of the left-side structure for mounting the lower triangular block of the present invention; Appendix Figure 6 This is a schematic diagram of the right-side view of the lower triangular block mounting structure of the present invention; Appendix Figure 7 This is a top view schematic diagram of the lower triangular block mounting structure of the present invention; Appendix Figure 8 This is a bottom view diagram of the lower triangular block mounting structure of the present invention. In the diagram, 1 is the door hinge, 2 is the shaft set, 3 is the lower triangular block, 4 is the middle triangular block, 5 is the upper triangular block, 6 is the screw, 7 is the screw hole, 8 is the upright plate, 9 is the long hole, 10 is the crossbar, 11 is the internal hex nut, 12 is the bearing, 13 is the fixed shaft, 14 is the shaft seat, 15 is the shaft seat plate, and 16 is the fixing hole. Detailed Implementation
[0013] The attached figure shows a specific embodiment of the present invention. This embodiment includes a door hinge 1, a sleeve 2 at the lower part of the door hinge 1, a lower triangular block 3 integrally connected above the sleeve 2, a middle triangular block 4 above the lower triangular block 3, an upper triangular block 5 above the middle triangular block 4, the upper triangular block 5 being fixed to the door hinge 1, a screw 6 passing through the middle triangular block 4, the inner end of the screw 6 abutting against the inner wall of the door hinge 1, and the outer end of the screw 6 being placed in a screw hole 7.
[0014] The upper part of the sleeve shaft 2 is integrally connected to the two vertical plates 8, and the lower triangular block 3, the middle triangular block 4 and the upper triangular block 5 are located between the two vertical plates 8 respectively.
[0015] The upper part of the upright plate 8 has an elongated hole 9, and a crossbar 10 is inserted through the elongated hole 9. The two ends of the crossbar 10 are installed on the door hinge 1.
[0016] The outer end of screw 6 is integrally connected to the internal hexagonal nut 11.
[0017] A bearing 12 is fitted at the bottom of the sleeve shaft 2. The bearing 12 is mounted on the fixed shaft 13. The fixed shaft 13 is fixedly mounted on the shaft seat 14. The shaft seat 14 is fixed on the shaft seat plate 15.
[0018] The bearing plate 15 has a fixing hole 16.
[0019] The adjustable door hinge structure of this invention includes three triangular blocks inside the door hinge 1: a lower triangular block 3 integrally connected to the upper part of the sleeve shaft 2, an upper triangular block 5 fixed to the door hinge 1, and a middle triangular block 4 located between the two. A screw 6 is installed inside the middle triangular block 4, with its front end pressing against the inner wall of the door hinge 1 and its rear end fitted with an internal hexagonal nut 11, which is placed in the screw hole 7. By rotating the screw 6, the middle triangular block 4 can be moved laterally. When the middle triangular block 4 moves inward, it lifts the upper triangular block 5. Since the upper triangular block 5 is fixed to the door hinge 1, this allows the door hinge 1 to rise. Similarly, rotating the screw 6 moves the middle triangular block 4 laterally. When the middle triangular block 4 moves outward, the upper triangular block 5 and the door hinge 1 can descend under the influence of gravity.
[0020] All three triangular blocks are located between the two upright plates 8, ensuring that the middle triangular block 4 can move horizontally stably, the upper triangular block 5 can move vertically stably, the door hinge 1 moves vertically, driving the crossbar 10 to move vertically. The crossbar 10 moves vertically within the elongated hole 9, and the crossbar 10 does not bear any external force.
[0021] The liftable door hinge structure of this invention can be used for the feet of wardrobes, cabinets, and large machinery and equipment. Instead of relying on screws 6 for load-bearing, all the load is loaded onto three triangular blocks, which can keep them in a state of large load-bearing capacity at all times. In addition, this lifting mechanism is also suitable for lifting various hanging parts.
Claims
1. A liftable door hinge structure, comprising a door hinge (1), characterized in that: The lower part of the door hinge (1) is provided with a sleeve (2), and the upper part of the sleeve (2) is integrally connected with a lower triangular block (3). The upper part of the lower triangular block (3) is provided with a middle triangular block (4), and the upper part of the middle triangular block (4) is provided with an upper triangular block (5). The upper triangular block (5) is fixed on the door hinge (1). A screw (6) is inserted inside the middle triangular block (4). The inner end of the screw (6) is against the inner wall of the door hinge (1), and the outer end of the screw (6) is placed in the screw hole (7).
2. The liftable door hinge structure according to claim 1, characterized in that: The sleeve shaft (2) is integrally connected to two vertical plates (8) above it, and the lower triangular block (3), the middle triangular block (4) and the upper triangular block (5) are located between the two vertical plates (8).
3. The liftable door hinge structure according to claim 2, characterized in that: The upper part of the upright plate (8) is provided with an elongated hole (9), and a crossbar (10) is inserted through the elongated hole (9). The two ends of the crossbar (10) are installed on the door hinge (1).
4. The liftable door hinge structure according to claim 1, characterized in that: The outer end of the screw (6) is integrally connected to the internal hexagonal nut (11).
5. The liftable door hinge structure according to claim 1, characterized in that: The bottom of the sleeve shaft (2) is fitted with a bearing (12), which is mounted on a fixed shaft (13). The fixed shaft (13) is fixedly mounted on a shaft seat (14), and the shaft seat (14) is fixed on a shaft seat plate (15).
6. The liftable door hinge structure according to claim 5, characterized in that: The bearing plate (15) has a fixing hole (16).