A short arm hinge

Abstract

The utility model provides a kind of short arm hinge, it belongs to the field of hinge, it includes: pedestal, head base, the pedestal is equipped with connecting arm, connecting rod is equipped in the head base;U-shaped rod is equipped with on the connecting arm, the U-shaped rod is passed through connecting rod and is hingedly connected, the end outer wall of the U-shaped rod is equipped with two annular grooves, two the annular groove is equipped with elastic buckle, the elastic buckle includes two semicircular strips in annular groove, two the semicircular strip is connected by connecting strip, and the other end of the semicircular strip is fixed with limit strip, the limit strip is set to connecting strip direction.This utility model can dismantle replacement part component design, avoid the fixed stability deterioration, screw loosening even off and other problems caused by the whole replacement hinge and the second screwing screw of cabinet door, improve the service life and maintenance convenience of hinge.

Description

Technical Field

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

[0002] In hinge applications, such as the connection of cabinets and wardrobes in furniture, traditional hinge structures are mostly one-piece designs, including the head base, the base, and the connecting rod between them. The connecting rod is hinged to the head base and the base via a metal rod, which is then riveted to the head base and the base. This design has certain drawbacks: In actual use of cabinet door hinges, when the hinge base and its internal damping components are damaged or worn, the conventional solution is to disassemble and replace the entire hinge. From the operational steps, replacing the entire hinge seems more direct and convenient, but considering the installation structure and material characteristics of the cabinet door, this method has obvious potential future problems.

[0003] Specifically, the hinge head base needs to be fixed to the cabinet door. The installation process requires first pre-fabricating a matching mounting groove on the wooden cabinet door, then inserting the hinge head base into the mounting groove, and finally securing it with two screws. It is important to note that the cabinet door body is made of wood, and the screws are not fixed to the wood using threaded engagement like metal parts. Instead, the fixing effect relies entirely on the pressure generated by the screw's rotation, which forces the screw to adhere tightly to the wood fibers.

[0004] The limitations of this fixing method become fully apparent when replacing hinges: after removing the old hinge and then tightening the screws to secure the new hinge, the bonding strength between the screws and the wood panel decreases significantly compared to the initial fixation. This is because the wood fibers, compressed and deformed during the initial installation, cannot regain their original density. The secondary tightening fails to generate sufficient compressive force, resulting in poorer stability and a high risk of screws loosening or even falling off over time. To address this issue, installers typically use only two or three screws to secure the base, ensuring stability when replacing the base or hinge later.

[0005] Therefore, this application proposes a short-arm hinge. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a short-arm hinge.

[0007] An embodiment of this utility model provides a short-arm hinge, comprising: A base and a head base, wherein the base is provided with a connecting arm and the head base is provided with a connecting rod; A U-shaped rod is provided through the connecting arm, and the U-shaped rod passes through the connecting rod and is hinged to it. The outer wall of the end of the U-shaped rod is provided with two annular grooves, and elastic buckles are provided in the two annular grooves.

[0008] Furthermore, the connecting arm is fastened to the base, and the connecting arm is provided with a first adjusting screw and a second adjusting screw, which are connected to the base.

[0009] Furthermore, the base is provided with two slots and two mounting holes.

[0010] Furthermore, the elastic buckle includes two semicircular strips located in the annular groove, the two semicircular strips are connected by a connecting strip, and a limiting strip is fixed to the other end of the semicircular strip, the limiting strip being positioned towards the connecting strip.

[0011] Furthermore, a connecting shaft is riveted to the head base, and the connecting shaft passes through the connecting rod and is rotatably connected to it.

[0012] Furthermore, two fixing plates extend outward from the head base, and the fixing plates are provided with fixing holes.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The design of this utility model, which allows for the detachment and replacement of certain components, avoids problems such as decreased fixing stability, loosening or even falling off of screws caused by the secondary tightening of screws on the cabinet door when replacing the entire hinge, thereby improving the service life and maintenance convenience of the hinge. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a short-arm hinge as described in an embodiment of this utility model.

[0015] Figure 2 This is a side view of a short-arm hinge as described in an embodiment of this utility model.

[0016] Figure 3 The diagram shows the split view of the connecting rod in a short-arm hinge according to an embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the elastic buckle in a short-arm hinge as described in an embodiment of this utility model.

[0018] In the above figures: 1 base, 2 connecting arm, 3 first adjusting screw, 4 second adjusting screw, 5 head base, 6 connecting rod, 7 U-shaped rod, 8 annular groove, 9 connecting strip, 10 semi-circular strip, 11 limiting strip, 12 slot, 13 mounting hole, 14 fixing plate, 15 fixing hole, 16 connecting shaft. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1-4 As shown, this utility model embodiment proposes a short-arm hinge suitable for non-damped hinges, comprising: The base 1, as one of the basic support components of the hinge assembly, has two slots 12 and two mounting holes 13. The length of the slots 12 is greater than the inner diameter of the mounting holes 13, which can be used for positioning or assisting in installation. The mounting holes 13 are used to fix the base 1 to the cabinet with screws. At least one slot 12 or mounting hole 13 is not secured with screws, so that when the hinge is replaced later, the unsecured slot 12 or mounting hole 13 can be secured with screws, ensuring the stability of the installation after hinge replacement.

[0021] The connecting arm 2 is fastened to the base 1 and slides against it. The connecting arm 2 is provided with a first adjusting screw 3 and a second adjusting screw 4. These two adjusting screws are connected to the base 1. By rotating the first adjusting screw 3 and the second adjusting screw 4, the position of the connecting arm 2 relative to the base 1 can be finely adjusted, so as to facilitate the subsequent adjustment of the cabinet door. This part is only a partial structural description of the existing hinge. The whole also includes other supporting structures. Since the relevant structures of non-damped hinges on the market have been disclosed and the information is sufficient, they will not be described in detail here.

[0022] The head base 5 is used to fix itself to the cabinet door or cabinet body, but an installation groove needs to be made in the cabinet door or cabinet body, and the head base 5 is located in the installation groove. Two fixing pieces 14 extend outward from the head base 5, and each fixing piece 14 has a fixing hole 15. During installation, a matching installation groove is first pre-made on the wooden cabinet door, the head base 5 is inserted into the installation groove, and then screws are screwed into the fixing holes 15. The squeezing force generated by the rotation of the screws makes the screws fit tightly with the wood fibers, thereby fixing the head base 5 to the cabinet door. A connecting shaft 16 is riveted to the head base 5. A connecting hole is provided through the head base 5, and the connecting shaft 16 passes through the connecting hole and is riveted to the head base 5 at both ends; the connecting shaft 16 passes through the connecting rod 6 and is rotatably connected to it, so that the connecting rod 6 can rotate relative to the head base 5.

[0023] The connecting arm 2 is hinged to the connecting rod 6. To further explain: a U-shaped rod 7 is provided through the connecting arm 2, and a through hole is provided through the connecting arm 2 for the U-shaped rod 7 to pass through. The U-shaped rod 7 is set through the through hole; the U-shaped rod 7 also passes through the connecting rod 6 and is hinged to it, so that the connecting arm 2 and the connecting rod 6 can rotate relative to each other.

[0024] Two annular grooves 8 are provided on the outer wall of the end of the U-shaped rod 7, and the two annular grooves 8 are respectively distributed on the outer surface of both ends of the U-shaped rod 7; elastic buckles are provided in the two annular grooves 8. The elastic buckles include two semi-circular strips 10 located in the annular grooves 8, the two semi-circular strips 10 are connected by a connecting strip 9, and a limiting strip 11 is fixed to the other end of the semi-circular strip 10. The limiting strip 11 is set towards the connecting strip 9, that is, the limiting strip 11 is set in a constricted manner relative to the semi-circular strip 10. The connecting strip 9, the semi-circular strip 10, and the limiting strip 11 are made of stainless steel and are integrally formed, and their outer surfaces are cylindrical.

[0025] The function of the elastic buckle is to fix the U-shaped rod 7 to the connecting arm 2 and the connecting rod 6 to prevent the U-shaped rod 7 from falling off. At the same time, its elastic design also facilitates the installation and disassembly of the U-shaped rod 7.

[0026] The installation and use of this new type of hinge is as follows: First, install the head base 5: A matching mounting groove for the head base 5 is pre-drilled on the wooden cabinet door. The head base 5 is then inserted into the mounting groove, and screws are used to fix it to the cabinet door through the fixing holes 15 on the fixing plate 14. Because the screws have a good fixing effect with the wood fibers during the initial installation, the head base 5 is securely installed.

[0027] Determine the installation position of the base 1 based on the position of the head base 5: Place the base 1 on the cabinet or cabinet door, use the head base 5 to install it in the mounting groove for initial positioning, and then use screws to fix the base 1 to the cabinet through the two mounting holes 13 and the two slots 12, thus realizing the installation of the hinge.

[0028] When the hinge base 1 and its internal components are damaged or worn, due to the connection structure design of this short-arm hinge, it is not necessary to disassemble and replace the entire hinge as in traditional hinges. For the base 1, simply remove the screws passing through the mounting holes 13 and slots 12; then use a screwdriver, preferably a flathead screwdriver or a flat-headed metal piece, to insert into the bottom of the connecting strip 9 and push the connecting strip 9 to move. Under the pushing force, the limiting strip 11 and the semi-circular strip 10 deform, causing the elastic buckle to disengage from the U-shaped rod 7. Then remove the U-shaped rod 7, thus separating the base 1 and the connecting arm 2 from the head base 5.

[0029] Then replace the new base 1 and its upper connecting arm 2. At this point, the mounting holes 12 or 13 of the base 1, which were not previously installed with screws, can be fixed to the cabinet door with screws, thus ensuring the stability of the new base 1 installation. Next, the connecting arm 2 can be installed with the connecting rod 6 installed in the head base 5. This design of detachable and replaceable parts avoids problems such as decreased fixing stability, loosening or even falling off of screws caused by re-tightening the screws on the cabinet door when replacing the entire hinge, thus improving the service life and maintenance convenience of the hinge.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A short-arm hinge, characterized in that, include: The base (1) and the head base (5) are provided with a connecting arm (2) on the base (1) and a connecting rod (6) inside the head base (5). A U-shaped rod (7) is provided through the connecting arm (2). The U-shaped rod (7) passes through the connecting rod (6) and is hinged to it. The outer wall of the end of the U-shaped rod (7) is provided with two annular grooves (8), and elastic buckles are provided in the two annular grooves (8).

2. A short-arm hinge according to claim 1, characterized in that, in: The connecting arm (2) is fastened to the base (1), and the connecting arm (2) is provided with a first adjusting screw (3) and a second adjusting screw (4), which are connected to the base (1).

3. A short-arm hinge according to claim 1, characterized in that, in: The base (1) is provided with two slots (12) and two mounting holes (13).

4. A short-arm hinge according to claim 1, characterized in that, in: The elastic buckle includes two semicircular strips (10) located in the annular groove (8), the two semicircular strips (10) are connected by a connecting strip (9), and the other end of the semicircular strip (10) is fixed with a limiting strip (11), the limiting strip (11) is set toward the connecting strip (9).

5. A short-arm hinge according to claim 1, characterized in that, in: A connecting shaft (16) is riveted to the head base (5), and the connecting shaft (16) passes through the connecting rod (6) and is rotatably connected to it.

6. A short-arm hinge according to claim 1, characterized in that, in: Two fixing plates (14) extend outward from the head base (5), and fixing holes (15) are provided on the fixing plates (14).

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