Super-load bearing wear-resistant hinge mechanism
By introducing planar bearings and ball bearings into the hinge mechanism, the load-bearing capacity and wear resistance are enhanced. Furthermore, through limit adjustment and lubrication measures, the load-bearing and wear resistance issues of the hinge mechanism are resolved, thereby improving the stability of the hinge and the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGKANG CHENMING IND & TRADE CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-05-29
AI Technical Summary
Existing hinge mechanisms are insufficient in terms of load-bearing capacity and wear resistance, resulting in cumbersome installation and short lifespan, especially in heavy-duty doors, which poses a risk of hinge damage and door falling off.
The spindle assembly is equipped with a plane bearing mechanism and ball bearings to enhance axial load capacity, and wear resistance is improved by shims. At the same time, limit adjustment is achieved by ball screws and lubrication is achieved by oil injection holes to ensure rotational flexibility.
It improves the load-bearing capacity and wear resistance of the hinge mechanism, ensuring its stability and service life, while providing flexible limit adjustment and lubrication operation, thus enhancing the user experience.
Smart Images

Figure CN224300636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hinge mechanism technology, and in particular to a high-load-bearing and wear-resistant hinge mechanism. Background Technology
[0002] A hinge is a device used for connection or rotation, allowing doors, covers or other swinging parts to be opened or closed by rotation. It usually consists of a pair of metal leaf bushings connected by a pin.
[0003] Hinges, as the most important component of swing doors, are responsible for bearing the entire weight and ensuring smooth opening of the door. However, heavy-duty hinges currently on the market suffer from complex structural manufacturing and unreliability, leading to difficult installation and short lifespan. These problems become increasingly serious as the weight and size of the door increase, not only making installation cumbersome but also affecting normal closing and use later, and even posing a risk of door falling due to hinge damage. Therefore, a high-load-bearing and wear-resistant hinge mechanism is provided to solve the above problems. Utility Model Content
[0004] One of the objectives of this invention is to provide a high-load-bearing and wear-resistant hinge mechanism to solve the problems of insufficient load-bearing capacity and wear resistance of existing hinge mechanisms.
[0005] This utility model discloses a high-load-bearing and wear-resistant hinge mechanism, which can be achieved through the following technical solutions:
[0006] This utility model discloses a high-load-bearing and wear-resistant hinge mechanism, which includes a main shaft assembly; a first hinge plate assembly, one end of which is rotatably disposed on the middle part of the main shaft assembly; a second hinge plate assembly, one end of which is rotatably disposed on the upper and lower ends of the main shaft assembly; and two mounting cap assemblies, which are respectively fixedly disposed on both sides of the second hinge plate assembly.
[0007] The spindle assembly includes a spindle body; a first planar bearing mechanism and a second planar bearing mechanism respectively disposed on the spindle body, with one end of the first hinge assembly disposed between the first planar bearing mechanism and the second planar bearing mechanism; and at least one first ball bearing and at least one second ball bearing respectively disposed on both sides of the spindle body and respectively in contact with the second hinge assembly.
[0008] In one embodiment, both the first planar bearing mechanism and the second planar bearing mechanism include a planar bearing body, which is rotatably disposed on the shaft body; and a first shim and a second shim, which are respectively disposed on opposite sides of the shaft body.
[0009] In one embodiment, the main body of the planar bearing is a needle roller planar bearing.
[0010] In one embodiment, the first hinge assembly includes a first connecting sleeve rotatably sleeved on the shaft body, with its opposite ends respectively in contact with the first planar bearing mechanism and the second planar bearing mechanism; a first hinge body fixedly disposed on the side of the first connecting sleeve; and a first ball screw penetrating through the first connecting sleeve and in contact with the shaft body.
[0011] In one embodiment, a first connecting hole is provided through the first connecting sleeve, and an internal thread is provided in the first connecting hole. The first ball screw can be adjusted to pass through the first connecting hole and contact the shaft body.
[0012] In one embodiment, the second hinge assembly includes a second connecting sleeve and a third connecting sleeve, which are rotatably sleeved on both ends of the shaft body and respectively in contact with the first planar bearing mechanism and the second planar bearing mechanism; at least one first ball bearing and at least one second ball bearing are respectively in contact with the inner walls of the second connecting sleeve and the third connecting sleeve; a second hinge body is fixedly connected to the second connecting sleeve and the third connecting sleeve; and a second ball screw and a third ball screw pass through the second connecting sleeve and the third connecting sleeve and are respectively capable of contacting and connecting with the shaft body.
[0013] In one embodiment, the second connecting sleeve and the third connecting sleeve are respectively provided with a second connecting hole and a third connecting hole, both of which are provided with internal threads. The second ball screw and the third ball screw can be adjusted to pass through the second connecting sleeve and the third connecting sleeve and contact the shaft body through the second connecting hole and the third connecting hole, respectively.
[0014] In one embodiment, the two mounting cap assemblies are respectively fixedly disposed on the second connecting sleeve and the third connecting sleeve.
[0015] In one embodiment, the mounting cap assembly includes a mounting cap body, which is a hollow cavity, and the mounting cap body is fixedly and sealed on the second connecting sleeve or the third connecting sleeve; and a sealing screw that is detachably threaded onto the mounting cap body.
[0016] In one embodiment, an oil injection hole is provided through the main body of the mounting cap, and an internal thread is provided therein; the sealing screw is detachably threaded onto the oil injection hole.
[0017] Compared with the prior art, the beneficial effects of this utility model's ultra-heavy-load-bearing and wear-resistant hinge mechanism are as follows:
[0018] This utility model discloses a high-load-bearing and wear-resistant hinge mechanism. It incorporates two planar bearings on the shaft body, facilitating the rotation of the first and second hinge assemblies relative to the shaft body while increasing the axial load capacity of the main shaft assembly, thus enhancing the hinge mechanism's load-bearing capacity. Furthermore, shims are placed on opposite sides of the planar bearings to enhance the hinge mechanism's wear resistance, effectively solving the problems of insufficient load-bearing capacity and wear resistance in existing hinge mechanisms. By adjusting the contact between the ball screws on the first and second hinge assemblies and the shaft body, the first and second hinge assemblies can be positioned to limit their movement, allowing users to adjust the position according to their needs, improving user experience and satisfaction. Additionally, oil injection holes and multiple connecting holes allow for oiling of the inner cavities of the first and second hinge assemblies, making the hinge mechanism's rotation more flexible and convenient. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of a high-load-bearing and wear-resistant hinge mechanism according to this utility model;
[0021] Figure 2 This is a three-dimensional structural schematic diagram of a high-load-bearing and wear-resistant hinge mechanism according to this utility model from another perspective;
[0022] Figure 3 This is a cross-sectional structural diagram of a high-load-bearing and wear-resistant hinge mechanism according to this utility model;
[0023] Figure 4 This is an exploded structural diagram of a high-load-bearing and wear-resistant hinge mechanism according to this utility model.
[0024] Figure 5 This is an exploded structural diagram of the ultra-heavy-load-bearing and wear-resistant hinge mechanism of this utility model from another perspective.
[0025] The diagram shows: 10, hinge mechanism; 11, main shaft assembly; 111, shaft body; 112, first planar bearing mechanism; 1121, planar bearing body; 1122, first washer; 1123, second washer; 113, second planar bearing mechanism; 114, first ball bearing; 115, second ball bearing; 12, first hinge plate assembly; 121, first connecting sleeve; 1211, first connecting hole; 122, first hinge plate body; 12 21, First fixing hole; 123, First ball screw; 13, Second hinge assembly; 131, Second connecting sleeve; 1311, Second connecting hole; 132, Third connecting sleeve; 1321, Third connecting hole; 133, Second hinge body; 1331, Second fixing hole; 134, Second ball screw; 135, Third ball screw; 14, Mounting cap assembly; 141, Mounting cap body; 1411, Oil filling hole; 142, Sealing screw. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0028] Please see Figure 1 and Figure 2 As shown, the present invention discloses a high-load-bearing and wear-resistant hinge mechanism 10, which mainly includes a main shaft assembly 11, a first hinge plate assembly 12, a second hinge plate assembly 13, and two mounting cap assemblies 14. The main shaft assembly 11 serves as the supporting body. One end of the first hinge plate assembly 12 is rotatably mounted on the middle part of the main shaft assembly 11. The two sides of one end of the second hinge plate assembly 13 are rotatably mounted on the upper and lower ends of the main shaft assembly 11, respectively. The two mounting cap assemblies 14 are fixedly mounted on both sides of the second hinge plate assembly 13, and oil can be injected into the second hinge plate assembly 13 through the mounting cap assemblies 14.
[0029] Please see Figures 1-5As shown, the spindle assembly 11 includes a shaft body 111, a first planar bearing mechanism 112, a second planar bearing mechanism 113, at least one first ball bearing 114, and at least one second ball bearing 115. The shaft body 111 is a straight metal rod, which serves as the supporting body. The first hinge assembly 12 and the second hinge assembly 13 are rotatably mounted on the shaft body 111. The first planar bearing mechanism 112 and the second planar bearing mechanism 113 are respectively mounted on the shaft body 111, and one end of the first hinge assembly 12 is connected to the first planar bearing mechanism 112 and the second planar bearing mechanism 113. The first plane bearing mechanism 112 and the second plane bearing mechanism 113 facilitate the rotation of the first hinge assembly 12 and the second hinge assembly 13 relative to the shaft body 111 while increasing the axial load capacity. At least one first ball bearing 114 and at least one second ball bearing 115 are respectively disposed on both sides of the shaft body 111 and respectively contact and connect with the second hinge assembly 13. The two sides of one end of the second hinge assembly 13 are respectively rotatably disposed on the upper and lower ends of the shaft body 111 through at least one first ball bearing 114 and at least one second ball bearing 115. In this embodiment, two first ball bearings 114 and two second ball bearings 115 are respectively disposed on both sides of the shaft body 111 and respectively contact and connect with the second hinge assembly 13.
[0030] Please see Figures 3-5 As shown, specifically, the first planar bearing mechanism 112 includes a planar bearing body 1121, a first washer 1122, and a second washer 1123. The planar bearing body 1121 is rotatably disposed on the shaft body 111, facilitating the rotation of the first hinge assembly 12 and the second hinge assembly 13 relative to the shaft body 11 while increasing the axial load capacity of the main shaft assembly 11. The first washer 1122 and the second washer 1123 are respectively disposed on opposite sides of the planar bearing body 1121. Preferably, the planar bearing body 1121 is a needle roller planar bearing. Specifically, the structure of the second planar bearing mechanism 113 is the same as that of the first planar bearing mechanism 112, so its specific structure will not be described in detail here.
[0031] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, in this embodiment, the first hinge assembly 12 includes a first connecting sleeve 121, a first hinge body 122, and a first ball screw 123. The first connecting sleeve 121 is rotatably sleeved on the shaft body 111, and its opposite ends are respectively in contact with the first planar bearing mechanism 112 and the second planar bearing mechanism 113. The first hinge body 122 is fixedly disposed on the side of the first connecting sleeve 121 and is fixedly connected to the door body. The first ball screw 123 penetrates the first connecting sleeve 121 and is in contact with the shaft body 111. The first hinge assembly 12 is limited by adjusting the contact condition between the first ball screw 123 and the shaft body 111. Specifically, a first connecting hole 1211 is provided through the first connecting sleeve 121, and an internal thread is provided in the first connecting hole 1211. The first ball screw 123 can be adjusted to pass through the first connecting sleeve 121 and contact the shaft body 111 through the first connecting hole 1211. A plurality of first fixing holes 1221 are provided through the first hinge body 122, and the door body is fixedly connected to the first hinge body 122 through the plurality of first fixing holes 1221.
[0032] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the second hinge assembly 13 includes a second connecting sleeve 131, a third connecting sleeve 132, a second hinge body 133, a second ball bearing screw 134, and a third ball bearing screw 135. The second connecting sleeve 131 and the third connecting sleeve 132 are rotatably sleeved on both ends of the shaft body 111 and respectively contact and connect with the first planar bearing mechanism 112 and the second planar bearing mechanism 113. At least one first ball bearing 114 and at least one second ball bearing 115 are respectively connected to the second connecting sleeve 131 and the third connecting sleeve 132. The inner wall is in contact with the shaft body 111, which facilitates the flexible rotation of the second hinge assembly 13 relative to the shaft body 111. The second hinge body 133 is fixedly connected to the second connecting sleeve 131 and the third connecting sleeve 132, and is fixedly connected to the door body. The second ball screw 134 and the third ball screw 135 pass through the second connecting sleeve 131 and the third connecting sleeve 132 respectively and can contact the shaft body 111. The rotation of the second hinge assembly 13 is limited by the cooperation of the second ball screw 134 and the third ball screw 135.
[0033] Please see Figure 4 and Figure 5As shown, specifically, the second connecting sleeve 131 and the third connecting sleeve 132 are respectively provided with a second connecting hole 1311 and a third connecting hole 1321. Both the second connecting hole 1311 and the third connecting hole 1321 are provided with internal threads. The second ball screw 134 and the third ball screw 135 are respectively adjusted to pass through the second connecting sleeve 131 and the third connecting sleeve 132 and contact the shaft body 111 through the second connecting hole 1311 and the third connecting hole 1321. The second hinge body 133 is provided with a plurality of second fixing holes 1331, and the door body is fixedly connected to the second hinge body 133 through the plurality of second fixing holes 1331.
[0034] Please see Figures 1-5 As shown, in this embodiment, two mounting cap assemblies 14 are respectively fixedly mounted on the second connecting sleeve 131 and the third connecting sleeve 132. Each mounting cap assembly 14 includes a mounting cap body 141 and a sealing screw 142. The mounting cap body 141 is a hollow cavity, which is fixedly and sealed onto the second connecting sleeve 131 or the third connecting sleeve 132. The sealing screw 142 is detachably threaded onto the mounting cap body 141, thus sealing the mounting cap body 141. Specifically, an oil injection hole 1411 is provided through the mounting cap body 141, with internal threads. Oil can be injected into the mounting cap body 141 through the oil injection hole 1411. The sealing screw 142 is detachably threaded onto the oil injection hole 1411, thereby sealing the oil injection hole 1411.
[0035] It should be noted that the assembly process of the ultra-heavy-duty wear-resistant hinge mechanism 10 of this utility model is as follows: First, the first hinge plate assembly 12 is sleeved on the shaft body 111. Then, the first planar bearing mechanism 112 and the second planar bearing mechanism 113 are respectively set at opposite ends of the first hinge plate assembly 12. Then, the first ball bearing 114 and the second ball bearing 115 are respectively installed on both sides of the shaft body 111. Next, the second hinge plate assembly 13 is installed on the shaft body 111. Finally, the two mounting plates are connected... The cap assembly 14 is fixedly mounted on both sides of the second hinge assembly 13, thereby completing the assembly operation of the hinge mechanism 10; oiling operations can be performed through the oiling hole 1411, the first connecting hole 1211, the second connecting hole 1311, and the third connecting hole 1321 respectively; by adjusting the contact status between the first ball screw 123, the second ball screw 134, and the third ball screw 135 and the shaft body 111 respectively, the limiting operation of the first hinge assembly 12 and the second hinge assembly 13 can be realized.
[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A high-load-bearing and wear-resistant hinge mechanism, characterized in that, include: Spindle assembly; The first hinge assembly has one end rotatably mounted on the middle part of the main shaft assembly; The second hinge assembly has one end rotatably mounted on the upper and lower ends of the main shaft assembly; Two mounting cap assemblies are respectively fixedly disposed on opposite sides of the second hinge assembly; The spindle assembly includes a spindle body; a first planar bearing mechanism and a second planar bearing mechanism respectively disposed on the spindle body, with one end of the first hinge assembly disposed between the first planar bearing mechanism and the second planar bearing mechanism; and at least one first ball bearing and at least one second ball bearing respectively disposed on both sides of the spindle body and respectively in contact with the second hinge assembly.
2. The high-load-bearing and wear-resistant hinge mechanism according to claim 1, characterized in that, Both the first planar bearing mechanism and the second planar bearing mechanism include a planar bearing body, which is rotatably disposed on the shaft body; and a first shim and a second shim, which are respectively disposed on opposite sides of the shaft body.
3. The high-load-bearing and wear-resistant hinge mechanism according to claim 2, characterized in that, The main body of the planar bearing is a needle roller planar bearing.
4. The high-load-bearing and wear-resistant hinge mechanism according to claim 1, characterized in that, The first hinge assembly includes a first connecting sleeve, which is rotatably sleeved on the shaft body, with its opposite ends respectively in contact with the first planar bearing mechanism and the second planar bearing mechanism; a first hinge body fixedly disposed on the side of the first connecting sleeve; and a first ball screw that penetrates the first connecting sleeve and is in contact with the shaft body.
5. The high-load-bearing and wear-resistant hinge mechanism according to claim 4, characterized in that, The first connecting sleeve has a first connecting hole through it, and the first connecting hole has an internal thread. The first ball screw can be adjusted to pass through the first connecting hole and contact the shaft body.
6. The high-load-bearing and wear-resistant hinge mechanism according to claim 1, characterized in that, The second hinge assembly includes a second connecting sleeve and a third connecting sleeve, which are rotatably sleeved on both ends of the shaft body and respectively in contact with the first planar bearing mechanism and the second planar bearing mechanism. At least one first ball bearing and at least one second ball bearing are respectively in contact with the inner walls of the second connecting sleeve and the third connecting sleeve. The second hinge body is fixedly connected to the second connecting sleeve and the third connecting sleeve. The second ball screw and the third ball screw pass through the second connecting sleeve and the third connecting sleeve and are respectively able to contact the shaft body.
7. A high-load-bearing and wear-resistant hinge mechanism according to claim 6, characterized in that, The second connecting sleeve and the third connecting sleeve are respectively provided with a second connecting hole and a third connecting hole, both of which are provided with internal threads. The second ball screw and the third ball screw can be adjusted to pass through the second connecting sleeve and the third connecting sleeve and contact the shaft body through the second connecting hole and the third connecting hole, respectively.
8. The high-load-bearing and wear-resistant hinge mechanism according to claim 6, characterized in that, The two mounting cap assemblies are respectively fixedly mounted on the second connecting sleeve and the third connecting sleeve.
9. A high-load-bearing and wear-resistant hinge mechanism according to claim 8, characterized in that, The mounting cap assembly includes a mounting cap body, which is a hollow cavity, and the mounting cap body is fixedly and sealed on the second connecting sleeve or the third connecting sleeve; and a sealing screw that is detachably threaded onto the mounting cap body.
10. A high-load-bearing and wear-resistant hinge mechanism according to claim 9, characterized in that, The mounting cap body has a through-hole for oil injection, which has an internal thread; the sealing screw is detachably threaded onto the oil injection hole.