Heavy door hinge
By using rotatable pins and elastic parts design in heavy-duty door hinges, the problems of insufficient load-bearing capacity and inconvenient maintenance of heavy-duty door hinges are solved, achieving high load-bearing capacity and convenient maintenance.
Patent Information
- Application Number
- CN202422238627.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Existing heavy-duty door hinges are prone to deformation and bend when carrying large loads, and are inconvenient to maintain.
A heavy-duty door hinge is designed, and a pin with a larger diameter is inserted into the shaft hole of the rotating body. The pin shaft is rotatable and connected to the screw plug through a thread. An elastic member is provided between the pin shaft to enhance structural strength. The pin shaft and the screw plug are split structures for easy replacement.
It improves the load-bearing capacity of the hinge, is easy to maintain and operate, enhances the deformation resistance of the structure, and has perfect overall functions.
Smart Images
Figure CN223151862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hinge, and more specifically, to a heavy-duty door hinge. Background Art
[0002] A hinge is a mechanical device used to connect two solids and allow relative rotation between them. A hinge can be composed of movable components or foldable materials. The hinge used on a heavy-duty door needs to be able to bear a large load, otherwise the rotating shaft is prone to deformation and bending, affecting the opening and closing of the heavy-duty door. Accordingly, the utility model provides a heavy-duty door hinge. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and provide a heavy-duty door hinge with strong load-bearing capacity and convenient maintenance.
[0004] To solve the above technical problems, the purpose of the utility model is achieved as follows: A heavy-duty door hinge according to the utility model includes a hinge base and a hinge body. Two ear seats arranged symmetrically up and down are provided on the front end face of the hinge base. The hinge body is composed of a rotating body and a hinge plate. The rotating body is arranged between the two ear seats. An axially-through hole is opened on the rotating body. A threaded hole coaxially arranged with the axially-through hole is opened on the ear seat. The diameter of the threaded hole is larger than that of the axially-through hole. A plug is threadedly connected in each threaded hole. One end of the plug facing away from the rotating body has a rotating part, and the other end is provided with a pin shaft inserted into the axially-through hole. The pin shaft rotates relative to the axially-through hole.
[0005] The utility model is further arranged as follows: An elastic member is arranged in the axially-through hole between the two pin shafts, and both ends of the elastic member respectively abut against the pin shafts.
[0006] The utility model is further arranged as follows: The elastic member is a compression spring.
[0007] The utility model is further arranged as follows: The rotating part is a groove structure opened on the plug and having a non-rotary columnar shape.
[0008] The utility model is further arranged as follows: One end of the pin shaft not connected to the plug has a chamfer.
[0009] The utility model is further arranged as follows: The pin shaft and the plug are integrated.
[0010] The utility model is further arranged as follows: A first mounting hole is provided on the hinge base; a second mounting hole is provided on the hinge plate.
[0011] In summary, the utility model has the following beneficial effects:
[0012] 1. By inserting a pin shaft with a relatively large diameter-height ratio into the shaft hole of the rotating body, the pin shaft can rotate relative to the shaft hole and is used as a rotating shaft, endowing the hinge with strong load-bearing capacity.
[0013] 2. Since the pin shaft inserted into the shaft hole adopts a split structure, if deformation occurs in one of the two, affecting the rotation of the hinge, maintenance can be achieved by replacement, and the operation is convenient and fast.
[0014] 3. The additional elastic member presses the pin shafts at both ends tightly, endowing it with stronger structural strength and enhancing the anti-deformation ability of the pin shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 is a schematic diagram of the structure for embodying the hinge seat of the present utility model;
[0017] Figure 3 is a schematic diagram of the structure for embodying the hinge body of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the preferred implementation schemes of the present utility model will be described below in conjunction with specific embodiments. However, it should be understood that these descriptions are only for further explaining the features and advantages of the present utility model, rather than limiting the patent requirements of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of the present utility model.
[0019] The present utility model will be further described below in conjunction with the drawings and preferred embodiments.
[0020] Embodiment 1
[0021] Refer to Figures 1 to 3 As shown, a heavy-duty door hinge involved in this embodiment includes a hinge seat 100 and a hinge body 200. The front end face of the hinge seat 100 is provided with two ear seats 101 arranged symmetrically up and down. The hinge body 200 is composed of a rotating body 201 and a hinge plate 202. The rotating body 201 is arranged between the two ear seats 101. A shaft hole 203 penetrating up and down is formed on the rotating body 201. A threaded hole 102 coaxial with the shaft hole is formed on the ear seat 101. The diameter of the threaded hole 102 is larger than the diameter of the shaft hole 203. A plug 300 is threadedly connected in each threaded hole 102. One end of the plug 300 facing away from the rotating body 201 has a rotating part 301, and the other end is provided with a pin shaft 302 inserted into the shaft hole. The pin shaft 302 rotates relative to the shaft hole 203.
[0022] Further, the rotating part 301 is a groove structure that is opened on the plug and has a non-rotating columnar shape.
[0023] Further, one end of the pin shaft 302 that is not connected to the plug 300 has a chamfer (not marked).
[0024] Further, the pin shaft 302 and the plug 300 are integrally formed.
[0025] Further, the hinge seat 100 is provided with a first mounting hole 104; the hinge plate 202 is provided with a second mounting hole 204.
[0026] In this embodiment, first place the hinge plate 202 on the hinge body 200 between the two ear seats 101, then take a plug 300 and insert it upward into the threaded hole 102 of the lower ear seat 101 until the plug 300 is screwed into the threaded hole 102 and the pin shaft 302 is inserted into the shaft hole 203; finally take another plug 300 and insert it downward into the threaded hole 102 of the upper ear seat 101 until the plug 300 is screwed into the threaded hole 102 and the pin shaft 302 is inserted into the shaft hole 203, thus completing the assembly of the hinge. When the pin shaft 302 is deformed and needs to be replaced, unscrew the corresponding plug 300 and replace the plug 300 carrying the pin shaft 302.
[0027] Among them, through the setting of the chamfer, it serves as an insertion guiding function.
[0028] Among them, through the setting of the first mounting hole 104 and the second mounting hole 204, it is used for hinge installation.
[0029] Embodiment 2
[0030] See Figures 1 to 3 As shown, a heavy-duty door hinge involved in this embodiment is further provided, on the basis of Embodiment 1, that an elastic member 400 is provided in the shaft hole 203 between the two pin shafts 302. The elastic member 400 is a compression spring, and both ends of the elastic member 400 respectively abut against the pin shaft 302.
[0031] In this embodiment, through the addition of the elastic member 400, on the one hand, it is used to tightly press the two end pin shafts 302 so that the pin shaft 302 can have better anti-deformation ability when subjected to side pressure; on the other hand, it plays a role in preventing the plug 300 from loosening.
[0032] The heavy-duty door hinge involved in the present utility model has a relatively large diameter-to-height ratio pin inserted into the shaft hole of the rotating body. The pin is rotatable relative to the shaft hole and is used as a rotating shaft, endowing the hinge with strong load-bearing capacity. And because the pin inserted into the shaft hole adopts a split structure, when deformation occurs in one of the two, affecting the rotation of the hinge, maintenance can be achieved by replacement, with convenient and fast operation. Also, an additional elastic member is used to tightly press the pins at both ends, endowing it with stronger structural strength and enhancing the anti-deformation ability of the pins. The overall function is perfect and the practicability is strong.
[0033] Unless otherwise clearly specified and defined, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, it is based on the actual shown orientation or positional relationship. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present utility model are only for exemplary illustration and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the embodiments and according to the specific circumstances.
[0034] Unless otherwise clearly specified and defined, in the present utility model, if there are terms such as "set", "connected" and "connected", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0035] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present utility model through logical analysis, reasoning or limited experiments based on the concept of the present utility model on the basis of the prior art should be within the protection scope determined by the claims.
Claims
1. A heavy-duty door hinge, comprising a hinge seat and a hinge body, characterized in that: The front end face of the hinge base is provided with two ear seats arranged symmetrically up and down. The hinge body is composed of a rotating body and a hinge plate. The rotating body is arranged between the two ear seats. A shaft hole penetrating up and down is formed in the rotating body. A threaded hole coaxially arranged with the shaft hole is formed in the ear seat. The diameter of the threaded hole is larger than that of the shaft hole. A plug is threadedly connected in each threaded hole. One end of the plug facing away from the rotating body has a rotating part, and the other end is provided with a pin shaft inserted into the shaft hole. The pin shaft rotates relative to the shaft hole.
2. The heavy-duty door hinge according to claim 1, characterized in that: An elastic member is arranged in the shaft hole between the two pin shafts, and both ends of the elastic member respectively abut against the pin shafts.
3. The heavy-duty door hinge according to claim 2, characterized in that: The elastic member is a compression spring.
4. The heavy-duty door hinge according to any one of claims 1-3, characterized in that: The rotating part is a groove structure formed in the plug and having a non-rotary columnar shape.
5. The heavy-duty door hinge according to claim 4, characterized in that: One end of the pin shaft not connected to the plug has a chamfer.
6. The heavy-duty door hinge according to claim 5, characterized in that: The pin shaft and the plug are integrally formed.
7. The heavy-duty door hinge according to claim 1, wherein: The hinge base is provided with a first mounting hole; the hinge plate is provided with a second mounting hole.