Built-in spring hinge
The built-in design and enclosed structure solve the problem of foreign objects getting stuck due to exposed torsion springs, thus achieving stable hinge operation and adjustable opening and closing force.
Patent Information
- Application Number
- CN202520351161.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-03
AI Technical Summary
The exposed torsion springs of existing spring hinges are prone to trapping foreign objects, leading to malfunctions.
Design a built-in spring hinge that incorporates a torsion spring through the structural design of the hinge shaft and connecting part. Use a side cover to seal the spring slot to prevent foreign objects from entering, and allow for the replacement of different torsion springs to meet different usage requirements.
It effectively prevents foreign objects from affecting the function of the torsion spring, ensures the normal operation of the hinge, and allows the spring to be replaced as needed to adjust the opening and closing force.
Smart Images
Figure CN223824815U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hinge technical field, especially a kind of built-in spring hinge. BACKGROUND
[0002] Spring hinge is a kind of common mechanical connecting device, mainly used for the connection and opening and closing of furniture, doors and windows, glass cabinet and other articles.Spring hinge adopts spring design, spring can provide certain resilience, so that the opening and closing of articles is more portable and stable, and the impact sound generated when the door and window are opened and closed can also be avoided.
[0003] Most of the spring hinges on the market are exposed, and the exposed spring is easy to be blocked by foreign matter, causing abnormal function of the hinge. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at solving the technical problems in the background art, and provides a built-in spring hinge.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A built-in spring hinge, comprising hinge one, hinge two, hinge shaft and torsion spring, the hinge one comprises connecting part one, the hinge two comprises connecting part two, the hinge shaft is fixedly installed in the installation cavity of connecting part one and extends to the outside of connecting part one, the end of the hinge shaft is provided with spring clamping groove one, the connecting part two is provided with spring clamping groove two, the end of the hinge shaft extends into the installation cavity of connecting part two, the torsion spring is sleeved with the hinge shaft, and the free end one of the torsion spring is clamped into the spring clamping groove one, and the free end two of the torsion spring is clamped into the spring clamping groove two.
[0007] The following is the further defined technical scheme of the utility model, the hinge shaft penetrates the installation cavity of connecting part one, and the hinge shaft and connecting part one are locked by a pin.
[0008] The following is the further defined technical scheme of the utility model, the connecting part one is provided with pin hole one, the hinge shaft is provided with pin hole two, and the pin is inserted into pin hole one and pin hole two to lock the hinge shaft and connecting part one.
[0009] The following is the further defined technical scheme of the utility model, the hinge one comprises leaf one and connecting part one, the connecting part one is fixedly arranged at the middle position of leaf one, the hinge two comprises leaf two and two connecting part twos, the two connecting part twos are fixedly arranged at the two sides of leaf two respectively, and the two connecting part twos are respectively at the two sides of the connecting part one.
[0010] The two end portions of the hinge shaft are both provided with spring clamping grooves one.
[0011] The following is the further defined technical scheme of the utility model, one side of the connecting part two is abutted with the connecting part one, the other side of the connecting part two is clamped with a side sealing cover.
[0012] Compared with the prior art, the utility model has the following technical effects:
[0013] The utility model discloses a torsion spring is designed internally, can avoid foreign matter to enter the torsion spring and influence the function of torsion spring, guarantees the normal function operation of hinge, in addition, the torsion spring is detachable, according to the opening and closing degree demand, through replacing different torsion springs, can satisfy different use demand.
[0014] The utility model is further illustrated below in connection with the drawings and examples. DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the drawings needed to be used in the embodiment or prior art will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0017] Figure 2 It is the three-dimensional structure schematic diagram of another view of the utility model;
[0018] Figure 3 It is the three-dimensional structure schematic diagram of the utility model after opening the side sealing cover;
[0019] Figure 4 It is the explosion structure schematic diagram of the utility model;
[0020] Figure 5 It is the structure schematic diagram of the torsion spring in the utility model.
[0021] Reference signs: 1, hinge one;101, connecting part one;102, page piece one;2, hinge two;201, connecting part two;202, page piece two;3, torsion spring;301, free end one;302, free end two;4, spring clamping groove one;5, spring clamping groove two;6, pin;7, pin hole one;8, pin hole two;9, side sealing cover. DETAILED DESCRIPTION
[0022] In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein, and one of ordinary skill in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.
[0023] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0024] In the description of the present application, it should be understood that the terms "one", "two" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "one", "two" can be explicitly or implicitly included at least one of the features.
[0025] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0026] As shown in Figures 1-5 The present embodiment provides an internal spring hinge, mainly composed of hinge one 1, hinge two 2, hinge shaft, torsion spring 3, pin 6 and side cover 9.
[0027] Hinge one 1 includes leaf one 102 and connecting part one 101, and connecting part one 101 is fixedly arranged at the middle position of leaf one 102. Hinge two 2 includes leaf two 202 and two connecting parts two 201, and the two connecting parts two 201 are respectively fixedly arranged at both sides of leaf two 202. When hinge one 1 and hinge two 2 are hinged through the hinge shaft, the two connecting parts two 201 are respectively at both sides of connecting part one 101.
[0028] The hinge shaft is fixedly installed in the mounting cavity of the connecting part one 101 and extends to the outside of the connecting part one 101, specifically: the hinge shaft penetrates the mounting cavity of the connecting part one 101 and is locked between the hinge shaft and the connecting part one 101 through a pin 6, wherein the connecting part one 101 is provided with a pin hole one 7, the hinge shaft is provided with a pin hole two 8, and the pin 6 is inserted into the pin hole one 7 and the pin hole two 8 to lock the hinge shaft and the connecting part one 101.
[0029] Both ends of the hinge shaft are provided with spring clamping grooves one 4, both connecting parts two 201 are provided with spring clamping grooves two 5, and the two ends of the hinge shaft respectively extend into the mounting cavities of the two connecting parts two 201, at this time, the ends of the hinge shaft are in the mounting cavities of the connecting parts two 201, the torsion spring 3 is placed in the mounting cavities of the connecting parts two 201 so that the torsion spring 3 is sleeved with the hinge shaft, wherein the free end one 301 of the torsion spring 3 is clamped into the spring clamping groove one 4, and the free end two 302 of the torsion spring 3 is clamped into the spring clamping groove two 5.
[0030] One side of the connecting part two 201 abuts against the connecting part one 101, and the other side of the connecting part two 201 is clamped with a side cover 9. Therefore, the opening outside the connecting part two 201 is covered by the side cover 9, so as to avoid foreign matters from entering the torsion spring 3 and affecting the function of the torsion spring 3, and the normal function of the hinge is ensured.
[0031] It should be noted that in actual application, the torsion spring 3 can be removed, therefore, different torsion springs 3 can be replaced according to the opening and closing force requirement, so as to meet different use requirements.
[0032] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art can make many possible changes and modifications to the technical scheme of the present application, or modify it into equivalent embodiments, without departing from the scope of the technical scheme of the present application, by using the disclosed methods and technical contents. Therefore, any equivalent changes made according to the shape, structure and principle of the present application, without departing from the technical scheme of the present application, should be covered in the protection scope of the present application.
Claims
1. A built-in spring hinge, characterized in that, The device includes a first hinge (1), a second hinge (2), a hinge shaft, and a torsion spring (3). The first hinge (1) includes a first connecting part (101), and the second hinge (2) includes a second connecting part (201). The hinge shaft is fixedly installed in the mounting cavity of the first connecting part (101) and extends to the outside of the first connecting part (101). The end of the hinge shaft is provided with a first spring slot (4), and the second connecting part (201) is provided with a second spring slot (5). The end of the hinge shaft extends into the mounting cavity of the second connecting part (201). The torsion spring (3) is sleeved with the hinge shaft, and the free end (301) of the torsion spring (3) is inserted into the first spring slot (4), and the free end (302) of the torsion spring (3) is inserted into the second spring slot (5).
2. The built-in spring hinge as described in claim 1, characterized in that, The hinge shaft passes through the mounting cavity of the first connecting part (101), and the hinge shaft and the first connecting part (101) are locked together by a pin (6).
3. The built-in spring hinge as described in claim 2, characterized in that, The connecting part (101) has a pin hole (7), and the hinge shaft has a pin hole (8). The pin (6) is inserted into the pin hole (7) and the pin hole (8) to lock the hinge shaft to the connecting part (101).
4. The built-in spring hinge as described in claim 1, characterized in that, The first hinge (1) includes a first leaf piece (102) and a first connecting part (101). The first connecting part (101) is fixedly disposed in the middle position of the first leaf piece (102). The second hinge (2) includes a second leaf piece (202) and two second connecting parts (201). The two second connecting parts (201) are respectively fixedly disposed on both sides of the second leaf piece (202), and the two second connecting parts (201) are respectively located on both sides of the first connecting part (101).
5. A built-in spring hinge as described in claim 4, characterized in that, Both ends of the hinge shaft are provided with spring slots (4).
6. A built-in spring hinge as described in claim 1, characterized in that, One side of the second connecting part (201) abuts against the first connecting part (101), and the other side of the second connecting part (201) is fitted with a side cover (9).