Heavy hinge for shielding door
By designing heavy-duty hinges and utilizing the cooperation of components such as hinge seats, positioning grooves, and thrust bearings, the problem of insufficient hinge load-bearing capacity was solved, enabling stable use and automatic opening and closing of the shielding door.
Patent Information
- Application Number
- CN202423156607.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Commonly available hinges have low load-bearing capacity and cannot be used on heavy screen doors.
A heavy-duty hinge was designed, which enhances the load-bearing capacity of the hinge through the cooperation of the hinge seat, positioning groove, thrust bearing, connecting shaft, bearing locking sleeve, self-aligning roller bearing, fixing block and limiting block, and realizes the automatic opening and closing of the shielding door through mechanical structure.
The hinge's load-bearing capacity has been improved, enabling stable use on platform screen doors and automatic opening and closing of the doors.
Smart Images
Figure CN223562656U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heavy hinge's technical field, specifically for a kind of heavy hinge for shield door. BACKGROUND
[0002] The role of electromagnetic shielding is to cut off the propagation path of electromagnetic waves, thereby eliminating electromagnetic interference, and the shield door is a key component in the structure of electromagnetic shielding body, is the main way of electromagnetic leakage, and is the main factor affecting the shielding performance. The shielding performance of many anechoic chambers (shielded rooms) cannot pass acceptance because of electromagnetic leakage from the shield door.
[0003] The shield door is relatively thick and heavy, but the common hinge load on the market is relatively small, generally not more than 100 kg, which cannot be used on the shield door. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the problem that the common hinge load is small and cannot be used on the shield door, the utility model aims to provide a heavy hinge for shield door.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a heavy hinge for shield door, comprising a hinge seat, a positioning groove is formed at one end of the hinge seat, a thrust bearing is fixedly arranged in the positioning groove, an inner ring of the thrust bearing is fixedly arranged with a connecting shaft, an outer ring of the thrust bearing is fixedly arranged on the hinge seat, and a first hinge is fixedly arranged on the hinge seat.
[0006] Preferably, the connecting shaft is fixedly provided with a bearing retainer at the end away from the hinge seat, a self-aligning roller bearing is sleeved on the bearing retainer, the inner ring of the self-aligning roller bearing is sleeved on the bearing retainer, the end of the connecting shaft away from the hinge seat is provided with a fixed block, the outer ring of the self-aligning roller bearing is fixedly arranged on the inner wall of the fixed block, the end of the bearing retainer away from the hinge seat is fixedly provided with a limiting block, and the end of the fixed block away from the hinge seat is fixedly provided with a connecting rod.
[0007] Compared with the prior art, the utility model has the beneficial effects that:
[0008] 1. The hinge seat, positioning groove, thrust bearing, connecting shaft, bearing retainer, self-aligning roller bearing, fixed block and limiting block cooperate with each other to make the hinge load strong, which can be installed on the shield door for use, solving the problem of small load of common hinge.
[0009] 2. The utility model structure is simple, and the connecting rod can be rotated by mechanical structure to realize the purpose of automatically opening and closing the shield door. BRIEF DESCRIPTION OF DRAWINGS
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Fig. 1 This is a schematic diagram of the overall structure of this utility model.
[0012] Fig. 2 This is a schematic diagram of the internal structure of this utility model.
[0013] Fig. 3 This is a cross-sectional view of the bearing adapter sleeve structure of this utility model.
[0014] In the diagram: 1. Hinge seat; 11. Positioning groove; 12. Thrust bearing; 13. Connecting shaft; 14. First hinge; 15. First positioning hole; 16. Bearing adapter sleeve; 17. Self-aligning roller bearing; 18. Fixing block; 19. Second hinge; 2. Limiting block; 21. Connecting rod; 22. Second positioning hole. Detailed Implementation
[0015] 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.
[0016] Example: Figs. 1-3 As shown, this utility model provides a heavy-duty hinge for a shielding door, including a hinge base 1. One end of the hinge base 1 is provided with a positioning groove 11. A thrust bearing 12 is fixedly installed in the positioning groove 11. The inner ring of the thrust bearing 12 is fixedly installed with a connecting shaft 13. The outer ring of the thrust bearing 12 is fixedly installed on the hinge base 1. A first hinge 14 is fixedly installed on the bearing base.
[0017] The first hinge 14 has several equally spaced first positioning holes 15 through it; the first hinge 14 can be fixed to the door frame through the first positioning holes 15.
[0018] The connecting shaft 13 is fixedly provided with a bearing retainer 16 at the end away from the hinge base 1, the bearing retainer 16 is sleeved with a self-aligning roller bearing 17, the inner ring of the self-aligning roller bearing 17 is sleeved on the bearing retainer 16, the connecting shaft 13 is provided with a fixed block 18 at the end away from the hinge base 1, and the outer ring of the self-aligning roller bearing 17 is fixedly arranged on the inner wall of the fixed block 18; the self-aligning roller bearing 17 can be fixed through the bearing retainer 16.
[0019] The second hinge 19 is fixedly arranged on the fixed block 18, and a plurality of second positioning holes 22 are arranged at equal intervals and pass through the second hinge 19; the second hinge 19 can be fixed to the shielding door through the second positioning holes 22.
[0020] The bearing retainer 16 is fixedly provided with a limiting block 2 at the end away from the hinge base 1; the self-aligning roller bearing 17 can be limited through the limiting block 2.
[0021] The fixed block 18 is fixedly provided with a connecting rod 21 at the end away from the hinge base 1; the shielding door can be opened or closed by rotating the connecting rod 21.
[0022] Working principle: in use, the worker can fix the first hinge 14 to the door frame through the first positioning hole 15, and then fix the second hinge 19 to the shielding door body through the second positioning hole 22, when the shielding door needs to be opened, the worker can rotate the connecting rod 21, because the connecting rod 21 is fixedly arranged at the end of the fixed block 18 away from the hinge base 1, the fixed block 18 is fixedly provided with the self-aligning roller bearing 17, the self-aligning roller bearing 17 is sleeved on the bearing retainer 16, the bearing retainer 16 is fixedly arranged at the end of the connecting shaft 13 away from the hinge base 1, the end of the connecting shaft 13 away from the bearing retainer 16 is fixedly provided with the thrust bearing 12, the inner ring of the thrust bearing 12 is fixedly arranged on the connecting shaft 13, and the outer ring of the thrust bearing 12 is fixedly arranged on the hinge base 1, therefore, when the connecting rod 21 rotates, the fixed block 18 will be driven to rotate along the self-aligning roller bearing 17, so as to open or close the shielding door.
[0023] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.
Claims
1. A heavy-duty hinge for a shielding door, comprising a hinge seat (1), characterized in that: One end of the hinge seat (1) is provided with a positioning groove (11), the positioning groove (11) is fixedly provided with a thrust bearing (12), the inner ring of the thrust bearing (12) is fixedly provided with a connecting shaft (13), the outer ring of the thrust bearing (12) is fixedly arranged on the hinge seat (1), and the hinge seat (1) is fixedly provided with a first hinge (14).
2. A heavy duty hinge for a security door as claimed in claim 1 wherein, A plurality of first positioning holes (15) are arranged on the first hinge (14).
3. A heavy duty hinge for a security door as claimed in claim 2 wherein, The end of the connecting shaft (13) away from the hinge seat (1) is fixedly provided with a bearing tight sleeve (16), the bearing tight sleeve (16) is sleeved with a self-aligning roller bearing (17), the inner ring of the self-aligning roller bearing (17) is sleeved on the bearing tight sleeve (16), the end of the connecting shaft (13) away from the hinge seat (1) is provided with a fixed block (18), and the outer ring of the self-aligning roller bearing (17) is fixedly arranged on the inner wall of the fixed block (18).
4. A heavy duty hinge for a security door as claimed in claim 3 wherein, The second hinge (19) is fixedly arranged on the fixed block (18), and a plurality of second positioning holes (22) are arranged on the second hinge (19).
5. A heavy duty hinge for a security door as claimed in claim 3 wherein, The end of the bearing tight sleeve (16) away from the hinge seat (1) is fixedly provided with a limiting block (2).
6. A heavy duty hinge for a security door as claimed in claim 3 wherein, The end of the fixed block (18) away from the hinge seat (1) is fixedly provided with a connecting rod (21).