Self-lubricating anti-loosening adjustable door hinge assembly
By designing a self-lubricating mechanism and an adjustable height structure in the door hinge assembly, the existing door hinge assembly has solved the problems of large resistance and short service life, achieving better user experience and protective effect.
Patent Information
- Application Number
- CN202420606452.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The door hinge components of existing heavy duty swing doors have problems such as large resistance, short service life, insufficient connection rigidity and insufficient self-lubricating, which leads to prone to abnormal noise during long-term use, affecting the user experience.
A self-lubricating and anti-loose adjustable door hinge assembly is designed. By setting an oil groove between the upper shaft of the center and the steel ball of the lower door hinge, the gravity of the grease is used to achieve the self-lubricating effect, and the height of the door is adjustable through threaded connections.
The self-lubrication of the door hinge assembly is realized, which reduces wear in the hinge position, avoids the occurrence of abnormal noise, extends the service life, and improves the adaptability and protection effect of the door.
Smart Images
Figure CN222595806U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of swing doors, in particular to a self-lubricating and anti-loosening adjustable door hinge component. Background Art
[0002] A swing door is a door with hinges installed on the side of the door, which opens inward (left inward opening, right inward opening) or outward (left outward opening, right outward opening), and is composed of door frames, hinges, door leaves, locks, etc. The lower door hinge assembly is a product used in heavy-duty swing doors in the field of radiation protection. Currently, heavy-duty swing door hinges mainly use hinges, which have high resistance, short service life, and insufficient connection rigidity. Generally, they will have stress deformation after one year of use and cannot be repaired. In the long-term use process, because it has no self-lubrication, the hinge position wears quickly and is prone to abnormal noise, which does not meet the quiet use environment of the hospital. For this reason, we propose a self-lubricating and anti-loosening adjustable door hinge assembly. Utility Model Content
[0003] In view of the above problems, the utility model provides a self-lubricating and anti-loosening adjustable door hinge assembly, which has a self-lubricating function and can adjust the height of the door up and down, and has a high degree of adaptability.
[0004] The technical solution of the utility model is:
[0005] A self-lubricating and anti-loosening adjustable door hinge assembly comprises a door hinge base, a hinge seat is installed at the top of the door hinge base, a U-shaped hole is provided at the top of the hinge seat, and a positioning hole is also provided at the bottom of the U-shaped hole, a lower door hinge steel ball is installed inside the U-shaped hole, a self-aligning upper shaft is installed at the top of the lower door hinge steel ball, a round nut is threadedly installed at the middle end of the outer wall of the self-aligning upper shaft, a door hinge ear is installed at the top of the outer wall of the self-aligning upper shaft, a concave cone surface is provided at the bottom end of the self-aligning upper shaft, and an oil groove is provided at the top of the concave cone surface.
[0006] In a further technical solution, the bottom end of the door hinge ear is snap-connected with a rotation-stopping washer, and the rotation-stopping washer consists of a washer and a plurality of buckle ears, and the plurality of buckle ears are distributed in a ring shape on the periphery of the washer.
[0007] In a further technical solution, three limiting grooves are provided on the outer wall of the door hinge base, and the buckle ears on the anti-rotation washer can be snapped into the limiting grooves.
[0008] In a further technical solution, a cover plate is installed at the top end of the door hinge ear, a pressure block is installed at the middle part of the bottom end of the cover plate, and the bottom end of the pressure block extends into the oil tank.
[0009] In a further technical solution, a groove is provided on the outer wall of the self-aligning upper shaft, and the groove is used for installing a rotation-stop washer.
[0010] The beneficial effects of the utility model are:
[0011] The self-aligning upper shaft, lower door hinge steel ball, pressure block and oil groove can play a good self-lubricating role, preventing abnormal noise caused by rapid wear of the hinge position under long-term use, which affects the user experience. At the same time, the self-aligning upper shaft and the door hinge ear are provided with threads, and the height of the door can be adjusted by threaded connection to adapt to the on-site environment and improve the protection effect. It is easy to install and disassemble, simple to replace, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0013] Figure 2 It is a cross-sectional structural schematic diagram of an embodiment of the utility model;
[0014] Figure 3 It is a schematic structural diagram of a rotation-stop washer according to an embodiment of the utility model.
[0015] Description of reference numerals:
[0016] 1. Door hinge base; 2. Round nut; 3. Hinge seat; 4. Self-aligning upper shaft; 5. Lower door hinge steel ball; 6. Door hinge ear; 7. Slot; 8. Pressure block; 9. Cover plate; 10. Anti-rotation washer. DETAILED DESCRIPTION
[0017] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings. Example
[0018] like Figure 1-Figure 3 As shown, a self-lubricating and anti-loosening adjustable door hinge assembly includes a door hinge base 1, a hinge seat 3 is installed on the top of the door hinge base 1, a U-shaped hole is opened on the top of the hinge seat 3, and a positioning hole is also opened at the bottom of the U-shaped hole, a lower door hinge steel ball 5 is installed inside the U-shaped hole, a self-aligning upper shaft 4 is installed on the top of the lower door hinge steel ball 5, a round nut 2 is threadedly installed on the middle end of the outer wall of the self-aligning upper shaft 4, a door hinge ear 6 is installed on the top of the outer wall of the self-aligning upper shaft 4, a concave cone surface is opened on the bottom end of the self-aligning upper shaft 4, and an oil groove is opened on the top of the concave cone surface.
[0019] The working principle of the above technical solution is as follows:
[0020] Connect and fix the door hinge base 1 and the hinge seat 3, then install the lower door hinge steel ball 5 in the hinge seat 3, install the self-aligning upper shaft 4 on the top of the lower door hinge steel ball 5, and limit the lower door hinge steel ball 5 on the concave cone surface of the self-aligning upper shaft 4. Next, threadedly install the upper round nut 2 and the door hinge ear 6. After the installation is completed, grease can be added to the oil tank. Due to the gravity of the grease, it will flow through the oil tank to the surface of the lower door hinge steel ball 5, thereby achieving a self-lubricating effect.
[0021] In another embodiment, if Figure 3 As shown, the bottom end of the door hinge ear 6 is snap-connected with a anti-rotation washer 10, which is composed of a washer and a plurality of snap ears, which are distributed in a ring shape on the periphery of the washer, and the outer wall of the door hinge base 1 is provided with three limiting grooves, and the snap ears on the anti-rotation washer 10 can be snapped into the limiting grooves. After the installation is completed, the snap ears on the anti-rotation washer 10 are snapped into the limiting grooves to prevent rotation between the door hinge ear 6 and the self-aligning upper shaft 4.
[0022] In another embodiment, if Figure 1 As shown, a cover plate 9 is installed at the top of the door hinge ear 6, and a pressure block 8 is installed at the middle part of the bottom end of the cover plate 9. The bottom end of the pressure block 8 extends into the oil groove. The pressure block 8 can squeeze the grease, thereby facilitating the grease to flow to the lower door hinge steel ball 5.
[0023] In another embodiment, if Figure 3 As shown, a slot 7 is provided on the outer wall of the self-aligning upper shaft 4, and the slot 7 is used for installing a rotation-stopping washer 10, so that the rotation-stopping washer 10 can be sleeved on the self-aligning upper shaft 4 without rotating.
[0024] The above embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A self-lubricating and anti-loosening adjustable door hinge assembly, comprising a door hinge base (1), characterized in that: A hinge seat (3) is installed at the top of the door hinge base (1), a U-shaped hole is provided at the top of the hinge seat (3), and a positioning hole is also provided at the bottom of the U-shaped hole, a lower door hinge steel ball (5) is installed inside the U-shaped hole, a self-aligning upper shaft (4) is installed at the top of the lower door hinge steel ball (5), a round nut (2) is threadedly installed at the middle end of the outer wall of the self-aligning upper shaft (4), a door hinge ear (6) is installed at the top of the outer wall of the self-aligning upper shaft (4), a concave cone surface is provided at the bottom end of the self-aligning upper shaft (4), and an oil groove is provided at the top end of the concave cone surface.
2. A self-lubricating and anti-loosening adjustable door hinge assembly according to claim 1, characterized in that: The bottom end of the door hinge ear (6) is snap-connected with a rotation-stopping washer (10), and the rotation-stopping washer (10) is composed of a washer and a plurality of snap ears, and the plurality of snap ears are distributed in an annular shape on the periphery of the washer.
3. A self-lubricating and anti-loosening adjustable door hinge assembly according to claim 2, characterized in that: The outer wall of the door hinge base (1) is provided with three limiting grooves, and the buckle ears on the anti-rotation washer (10) can be snapped into the limiting grooves.
4. The self-lubricating and anti-loosening adjustable door hinge assembly according to claim 1, characterized in that: A cover plate (9) is installed at the top end of the door hinge ear (6), a pressure block (8) is installed at the middle part of the bottom end of the cover plate (9), and the bottom end of the pressure block (8) extends into the oil tank.
5. The self-lubricating and anti-loosening adjustable door hinge assembly according to claim 2, characterized in that: The outer wall of the self-aligning upper shaft (4) is provided with a clamping groove (7), and the clamping groove (7) is used for installing a rotation-stopping washer (10).