Novel hinge

Abstract

The utility model relates to the technical field of hinges, and discloses a novel hinge which comprises an installation frame, one end of the installation frame is fixedly connected with a bending section, the other end of the bending section is fixedly connected with two sleeves, and the inner walls of the sleeves are fixedly connected with abrasion reduction assemblies used for reducing friction force when a door lock rotates. The inner wall of the sleeve is fixedly connected with a fastening assembly used for fastening a door lock rotating shaft, the abrasion reduction assembly comprises two annular sliding rails, the outer walls of the annular sliding rails are fixedly connected to the inner wall of the sleeve, and the inner walls of the annular sliding rails are movably connected with a plurality of balls. According to the utility model, the effect of effectively reducing the abrasion of the rotating shaft is realized, the smoothness and accuracy of the opening and closing of the case and the cabinet are improved, the noise and jamming phenomena caused by abrasion are reduced, the maintenance frequency and cost of the case and the cabinet are reduced, and the service life of the case and the cabinet is prolonged.

Description

Technical Field

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

[0002] A hinge, also known as a latch, is a mechanical device used to connect two solid objects and allow relative rotation between them. It typically consists of a movable component and a fixed component. It is widely used in doors, windows, cabinets, car doors, robotic arms, and many other devices. Hinges are used on the locks of server racks and cabinets primarily to connect the cabinet door to the cabinet body, allowing the door to rotate around the hinge's axis, thus enabling the door to open and close. Hinges also ensure a tight seal between the door and the cabinet body when closed, guaranteeing the airtightness and security of the server rack and cabinet. Furthermore, they can withstand a certain amount of weight and external force, making the door more stable and reliable during use.

[0003] Hinges for server rack and enclosure doors typically consist of fixed hinges, movable hinges, pivots, bushings, pins, and nuts. Their working principle involves mounting the fixed hinges to the cabinet body and the movable hinges to the door, connecting them via a pivot or pin. A bushing or bearing reduces rotational friction. When the door is turned, the movable hinge rotates relative to the fixed hinge around the pivot, thus connecting the door to the cabinet body and allowing for flexible opening and closing, facilitating the use and maintenance of the equipment inside the server rack and enclosure.

[0004] In existing technologies, frequent opening and closing actions subject the bearing to repeated friction and pressure. Furthermore, uneven force distribution within the hinge shaft leads to significant wear on some hinges during use. This results in noise and jamming during opening and closing, making it difficult to open and close cabinet doors properly. This affects the normal use and maintenance efficiency of equipment such as chassis and cabinets, impacts user experience, and reduces the hinge's lifespan. Therefore, a new type of hinge is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a new type of hinge, which aims to improve the problem of excessive wear on the internal pivot of some existing hinges during use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel hinge includes a mounting bracket, one end of which is fixedly connected to a bent section, and the other end of which is fixedly connected to two sleeves. The inner wall of each sleeve is fixedly connected to a friction-reducing component for reducing friction when the door lock rotates, and the inner wall of each sleeve is fixedly connected to a fastening component for securing the door lock pivot.

[0008] As a further description of the above technical solution:

[0009] The wear-reducing assembly includes two annular slide rails. The outer wall of the annular slide rails is fixedly connected to the inner wall of the sleeve, and multiple ball bearings are movably connected to the inner wall of the annular slide rails.

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

[0011] The fastening assembly includes a rubber ring, the outer wall of which is fixedly connected to the inner wall of the middle part of the sleeve, and a mating block is fixedly connected to the outer wall of the sleeve. Fastening holes are provided on the outer side of the mating block and the outer side of the sleeve.

[0012] As a further description of the above technical solution:

[0013] The mounting bracket has two mounting holes inside, which are used to insert screws to install the entire hinge at a designated position on the cabinet door.

[0014] As a further description of the above technical solution:

[0015] The annular slide rail has a through groove inside, and the outer wall of the ball is movably connected to the inside of the through groove.

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

[0017] The inner side of the annular slide rail is provided with a groove, the inner diameter of the groove opening is smaller than the radius of the ball, and the outside of the ball contacts the rotating shaft through the groove.

[0018] As a further description of the above technical solution:

[0019] The sleeve has a movable groove inside, and the outer wall of the rubber ring is fixedly connected to the inside of the movable groove. The inner diameter of the rubber ring is smaller than the inner diameter of the sleeve.

[0020] As a further description of the above technical solution:

[0021] The mounting blocks are symmetrically distributed, and the screws inserted into the fastening holes press against the rotating shaft inside the sleeve.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the opening and closing of the cabinet door causes the rotating shaft to rotate, which in turn drives the ball bearings in the annular slide rail to roll on its inner wall. The through groove ensures the stability of the ball bearings' rolling, and the slot ensures good contact between the ball bearings and the rotating shaft. By replacing sliding friction with rolling friction between the ball bearings, the rotating shaft, and the annular slide rail, the wear of the rotating shaft is effectively reduced. This helps to improve the smoothness and accuracy of the opening and closing of the cabinet, reduce noise and jamming caused by wear, and at the same time reduce the maintenance frequency and cost of the cabinet, extending its service life.

[0024] 2. In this utility model, the rubber ring is elastically deformed by inserting the rotating shaft into the sleeve, thereby initially stabilizing the rotating shaft through the elastic force of the rubber ring and avoiding lateral swaying. When further tightening is required, the rotating shaft is squeezed by screwing the screw into the fastening hole on the mating block, thereby increasing the clamping force and stabilizing the rotation of the rotating shaft. This allows the rotating shaft to maintain its position even under external force, realizing automatic fastening of the chassis and cabinet after rotation. This effectively reduces the risk of potential physical damage to the internal precision equipment caused by cabinet door shaking or displacement, and ensures the safe and reliable operation of the equipment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a novel hinge proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the sleeve structure of a novel hinge proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a novel hinge-type annular slide rail proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of a novel hinge docking block proposed in this utility model;

[0029] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Mounting bracket; 2. Mounting hole; 3. Bend section; 4. Sleeve; 5. Circular slide rail; 6. Ball bearing; 7. Rubber ring; 8. Connecting block; 9. Fastening hole; 10. Movable groove. Detailed Implementation

[0032] 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.

[0033] Reference Figure 2 , Figure 3 , Figure 5 This utility model provides an embodiment of a novel hinge, including a mounting frame 1, which provides mounting support points for the entire hinge. Two mounting holes 2 are respectively opened inside the mounting frame 1. The mounting holes 2 are used to insert screws to install the entire hinge at a designated position on the cabinet door, thereby ensuring that the hinge will not easily shift during cabinet door use, thus guaranteeing the normal opening and closing function of the cabinet door. A bent section 3 is fixedly connected to one end of the mounting frame 1. The bent section 3 serves as a connection and transition, changing the direction of force transmission, making the hinge structure more compact and reasonable, and adaptable to different installation spaces and opening / closing angle requirements of the cabinet door. Two sleeves 4 are fixedly connected to the other end of the bent section 3. The sleeves 4 are used to cooperate with the rotating shaft connected to the cabinet door, ensuring that the rotating shaft can rotate smoothly within the sleeves 4, thereby achieving flexible opening and closing of the cabinet door. A friction-reducing component for reducing friction when the door lock rotates is fixedly connected to the inner wall of the sleeves 4, and a fastening component for securing the door lock rotating shaft is also fixedly connected to the inner wall of the sleeves 4.

[0034] The wear-reducing assembly includes two annular slide rails 5. The outer wall of the annular slide rail 5 is fixedly connected to the inner wall of the sleeve 4. Multiple balls 6 are movably connected to the inner wall of the annular slide rail 5. The function of the annular slide rail 5 is to provide a stable rolling track for the balls 6. When the shaft rotates within the sleeve 4, the balls 6 roll along the inner wall of the annular slide rail 5 as the shaft rotates. Because the rolling friction coefficient between the balls 6 and the shaft and the annular slide rail 5 is much smaller than the sliding friction coefficient when the shaft is in direct contact with the sleeve 4, friction is effectively reduced, thus reducing shaft wear. A through groove is provided inside the annular slide rail 5, and the outer wall of the balls 6 is movably connected inside the through groove. The through groove limits and guides the balls 6, preventing them from detaching from the track during rolling and ensuring the stability and reliability of the wear-reducing assembly. The inner side of the annular slide rail 5 is provided with a groove. The inner diameter of the groove opening is smaller than the radius of the ball 6. The outside of the ball 6 contacts the rotating shaft through the groove, which ensures that the ball 6 can fully contact the rotating shaft to achieve a good wear reduction effect, and also prevents the ball 6 from falling out of the groove, thus ensuring the integrity and continuous working capability of the wear reduction component.

[0035] Reference Figure 1 , Figure 3 , Figure 4The fastening assembly includes a rubber ring 7, the outer wall of which is fixedly connected to the inner wall of the middle part of the sleeve 4. The rubber ring 7 is used to fasten the rotating shaft after it is inserted, thereby preventing the shaft from shaking and increasing wear. A movable groove 10 is provided inside the sleeve 4, and the outer wall of the rubber ring 7 is fixedly connected inside the movable groove 10. The movable groove 10 provides a space for the installation of the rubber ring 7 and a basis for its deformation. The inner diameter of the rubber ring 7 is smaller than the inner diameter of the sleeve 4, allowing the inner wall of the rubber ring 7 to fully contact the rotating shaft. When the rotating shaft is inserted into the sleeve 4, the rubber ring 7 will exert a certain clamping force on the rotating shaft due to its elasticity. This clamping force can, to a certain extent, fasten the rotating shaft and prevent unnecessary axial movement within the sleeve 4, thereby ensuring the stability and accuracy of the cabinet door during rotation. A mating block 8 is fixedly connected to the outer wall of the sleeve 4. Both the outer side of the mating block 8 and the outer side of the sleeve 4 are provided with fastening holes 9. The mounting blocks are symmetrically distributed. The rotating shaft inside the sleeve 4 is squeezed by inserting screws into the fastening holes 9. When it is necessary to further tighten the rotating shaft, screws can be inserted into the fastening holes 9. The squeezing of the screws will increase the clamping force on the rotating shaft, achieving a tighter fastening effect on the rotating shaft. This ensures that the rotating shaft can maintain a stable position after rotation and will not loosen or shift due to external forces or other factors.

[0036] Working principle: When the cabinet door opens and closes, the rotation of the cabinet door drives the connected rotating shaft to rotate synchronously, thereby causing the ball bearings 6 inside the annular slide rail 5 to roll on the inner wall of the annular slide rail 5. The through groove in the annular slide rail 5 limits and guides the rolling of the ball bearings 6, preventing them from falling off the track and ensuring that the ball bearings 6 roll continuously and stably. At the same time, the groove on the inner side of the annular slide rail 5 ensures that the ball bearings 6 are in full contact with the rotating shaft. Thus, the smaller rolling friction coefficient between the ball bearings 6 and the rotating shaft and the annular slide rail 5 replaces the larger sliding friction coefficient when the rotating shaft is in direct contact with the sleeve 4, reducing the wear of the rotating shaft during rotation, extending the service life of the rotating shaft, and ensuring the smoothness and stability of the cabinet door opening and closing.

[0037] When the shaft is inserted into the sleeve 4, the insertion of the shaft causes the rubber ring 7 to undergo elastic deformation, thereby making the inner wall of the rubber ring 7 tightly fit the shaft. The resulting clamping force helps to initially stabilize the shaft within the sleeve 4, preventing lateral swaying of the shaft within the sleeve 4 and ensuring the stability and accuracy of the cabinet door rotation process. When further tightening of the shaft is required, a screw is inserted into the fastening hole 9 on the mating block 8. The screw being screwed in causes its front end to press against the shaft within the sleeve 4, thereby increasing the clamping force on the shaft. This allows the shaft to rotate within the sleeve 4 without swaying, ensuring that the shaft can maintain a stable position even after being affected by external forces, achieving the effect of automatic tightening after rotation.

[0038] 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. A new type of hinge comprising a mounting frame (1), characterized in that: One end of the mounting frame (1) is fixedly connected with a bent section (3), the other end of the bent section (3) is fixedly connected with two sleeves (4), the inner wall of the sleeve (4) is fixedly connected with a wear-reducing assembly for reducing friction when the door lock rotates, the inner wall of the sleeve (4) is fixedly connected with a fastening assembly for fastening the door lock rotating shaft.

2. A new type of hinge according to claim 1, characterized in that: The wear-reducing assembly comprises two annular slide rails (5), the outer wall of the annular slide rail (5) is fixedly connected with the inner wall of the sleeve (4), and the inner wall of the annular slide rail (5) is movably connected with a plurality of ball bearings (6).

3. A new type of hinge according to claim 1, characterized in that: The fastening assembly comprises a rubber ring (7), the outer wall of the rubber ring (7) is fixedly connected with the middle inner wall of the sleeve (4), the outer wall of the sleeve (4) is fixedly connected with an abutting block (8), and the outer part of the abutting block (8) and the outer part of the sleeve (4) are both provided with a fastening hole (9).

4. A new type of hinge according to claim 1, characterized in that: The inner part of the mounting frame (1) is respectively provided with two mounting holes (2), and the mounting hole (2) is used for penetrating a screw to mount the entire hinge at a specified position of the cabinet door.

5. A novel hinge as claimed in claim 2, wherein: The inner part of the annular slide rail (5) is provided with a through groove, and the outer wall of the ball bearing (6) is movably connected with the inner part of the through groove.

6. A novel hinge as claimed in claim 2, wherein: The inner side of the annular slide rail (5) is provided with a leakage groove, the opening inner diameter of the leakage groove is smaller than the radius of the ball bearing (6), and the outer part of the ball bearing (6) is in contact with the rotating shaft through the leakage groove.

7. A novel hinge as claimed in claim 3, wherein: The inner part of the sleeve (4) is provided with a movable groove (10), the outer wall of the rubber ring (7) is fixedly connected with the inner part of the movable groove (10), and the inner diameter of the rubber ring (7) is smaller than the inner diameter of the sleeve (4).

8. A novel hinge as claimed in claim 3, wherein: It also comprises a mounting block, the mounting block is symmetrically distributed, and the inner part of the fastening hole (9) is used for extruding the rotating shaft in the inner part of the sleeve (4) by penetrating a screw.

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