CN213015888U - Combined hinge - Google Patents

Abstract

The utility model relates to a combined hinge is comparatively inconvenient to screw assembly among the current combined hinge product of the same kind, and whole firmness is not good enough technical problem and design. The hinge leaves at two sides of the hinge are respectively provided with tightening screws which are symmetrically arranged in pairs, wherein the hinge leaf at one side is formed by combining a second hinge leaf and a third hinge leaf, and the shaft hole of the second hinge leaf and the shaft hole of the third hinge leaf are sleeved into two ends of a rotating shaft at one side of the first hinge leaf at the other side; the key points are that a hinge groove is arranged on the outer diameter of a screw hole at the mounting position of a tightening screw on one side of the second hinge leaf, an open wedging groove is arranged on the inner side of the hinge groove of the second hinge leaf, a raised wedging head is arranged on one side of a shaft hole of the third hinge leaf, the third hinge leaf is buckled and fixed in the hinge groove in the second hinge leaf, the third hinge leaf is mutually wedged with the wedging groove of the second hinge leaf through the wedging head, and the shaft hole of the third hinge leaf is buckled and fixed in the second hinge leaf through rotation after being sleeved in a rotating shaft of the first hinge leaf.

Description

Combined hinge

Technical Field

The utility model relates to a hinge, in particular to a combined hinge.

Background

A hinge, also known as a hinge, is a mechanical device used to connect two solids and allow rotation between them; which are typically constructed of movable components, or foldable materials. The hinges are applied to cabinet doors of communication cabinets, network cabinets, electric power cabinets and control cabinets in the industries of telecommunication, electric power, automatic control manufacturing and the like, and at present, hinge products in the industry adopt a structure of an insert screw to meet the installation requirement and fix the rotation between hinge leaves through a pin structure. There are some hinges in which a hinge leaf on one side is produced and used in a combined manner, and the whole hinge is made of waterproof plastic, such as application No. 201910515295.9 disclosed in chinese patent document, application publication No. 2019.09.10, and the name of the invention "screw post-assembly type hinge". But the screw installation of above-mentioned product is comparatively inconvenient, and the head of screw need slide in the back through the recess and fixed by the apron lock again, and the fastness that the hinge leaf of one side combination passes through the apron is not good enough, and the whole assembly is comparatively inconvenient.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide a combined hinge to the field, which is inconvenient for assembling screws in the prior similar combined hinge products and has poor integral firmness. The purpose is realized by the following technical scheme.

A combined hinge, the hinge of both sides of the hinge has tightening screws arranged two by two symmetrically respectively, wherein the hinge of one side is formed by combining a second hinge and a third hinge, the second hinge and the third hinge are combined, and the shaft hole is sleeved into both ends of a rotating shaft of one side of a first hinge on the other side; the hinge is structurally characterized in that a hinge groove is formed in the outer diameter of a screw hole in the screw mounting position of one side of the second hinge, an open wedging groove is formed in the inner side of the hinge groove of the second hinge, a protruding wedging head is arranged on one side of a shaft hole of the third hinge, the third hinge is fastened and fixed in the hinge groove in the second hinge, the third hinge is mutually wedged with the wedging groove of the second hinge through the wedging head, and the shaft hole of the third hinge is fastened and fixed in the second hinge through rotation after being sleeved in a rotating shaft of the first hinge. Therefore, the third hinge leaf can be arranged in the second hinge leaf in the mode, the third hinge leaf and the second hinge leaf are connected into a whole, and the first hinge leaf, the second hinge leaf and the third hinge leaf are integrally assembled and produced.

The wedging head of the third hinge leaf is in an inverted triangle shape. According to the structure, the wedging head of the third hinge leaf can also adopt other shapes, and can be correspondingly wedged and fixed with the wedging groove of the second hinge leaf.

The outer diameter of a screw hole in a hinge groove of the second hinge leaf is provided with a first concave-convex groove rib, the bottom of a screw hole of the third hinge leaf is provided with a second concave-convex groove rib corresponding to the first concave-convex groove in the second hinge leaf, and the second concave-convex groove rib of the third hinge leaf is fixedly buckled with the first concave-convex groove rib of the second hinge leaf. The structure is convenient for the third hinge leaf and the second hinge leaf to be further buckled and fixed, namely the fastening is realized at multiple points and multiple positions.

The outer diameters of two ends of a limiting ring of the tightening screw are respectively provided with an external thread, the center of the end part of one side of the tightening screw is respectively provided with an inner hexagonal hole, the other side of the tightening screw is respectively fixed on screw holes of the first hinge leaf and the second hinge leaf through the external thread, the upper ring face and the lower ring face of the limiting ring of the tightening screw are respectively provided with an anti-rotation pawl, rubber gaskets are respectively arranged at the bottoms of the limiting rings of the tightening screw at the screw holes, and a shaft hole of the third hinge leaf is fixed on the second hinge leaf through the limiting ring of the tightening screw. The structure is convenient for screwing the screw for installation and is waterproof and dustproof and sealed.

The first hinge leaf, the second hinge leaf and the third hinge leaf are made of zinc alloy parts, the tightening screws are stainless steel screws, and the rotating shaft and the first hinge leaf are integrally formed. The structure is convenient for corrosion prevention and rust prevention of the whole hinge.

The tightening screw is a plastic piece. The tightening screw is made of another material.

A process groove is formed in one side of the rotating shaft of the first hinge leaf, the rotating shaft in the first hinge leaf is fixed in the first hinge leaf in a riveting mode through the process groove in the outer diameter, and a corresponding fixing groove is formed in the outer diameter of the rotating shaft in the first hinge leaf. The above is another structure and installation mode of the rotating shaft fixed on the first hinge.

The utility model has reasonable structural design, convenient installation and assembly, good stability and waterproof performance and low production cost; the hinge is suitable for being used as a hinge with high waterproof requirement and the structural improvement of the like products.

Drawings

Fig. 1 is a schematic view of the explosion structure of the present invention, wherein the external threads are omitted at the two ends of the tightening screw.

Fig. 2 is a schematic top view of the tightening screw according to the present invention.

Fig. 3 is a schematic sectional view of the present invention.

Fig. 4 is a schematic sectional view of the present invention.

Fig. 5 is a schematic sectional view of the present invention.

Fig. 6 is a schematic top view of the hinge slot of the second hinge leaf according to the present invention.

Fig. 7 is a schematic view of the bottom structure of the third hinge leaf of the present invention.

Figure number and name: 1. a first hinge leaf, 2, a second hinge leaf, 3, a third hinge leaf, 4, a tightening screw, 5 and a rubber gasket.

Detailed Description

The structure and use of the present invention will now be further described with reference to the accompanying drawings. As shown in fig. 1-7, two hinge leaves on two sides of the hinge are respectively provided with two symmetrically arranged tightening screws 4, wherein one hinge leaf is formed by combining a second hinge leaf 2 and a third hinge leaf 3, and the shaft hole of the second hinge leaf and the third hinge leaf is sleeved into two ends of a rotating shaft on one side of the first hinge leaf 1 on the other side. The concrete structure is as follows: the outer diameter of a screw hole at the mounting position of a screwing screw at one side of the second hinge leaf is provided with a hinge groove, the inner side of the hinge groove of the second hinge leaf is provided with an open wedging groove, one side of a shaft hole of the third hinge leaf is provided with a convex wedging head, and the third hinge leaf is wedged with the wedging groove of the second hinge leaf through the wedging head while being fastened and fixed in the hinge groove in the second hinge leaf. The wedging head of the third hinge leaf is in an inverted triangle shape, and the shape of the wedging groove of the second hinge leaf and the shape of the wedging head of the third hinge leaf are correspondingly and mutually wedged. Meanwhile, a first concave-convex groove rib is arranged on the outer diameter of a screw hole in a hinge groove of the second hinge leaf, a second concave-convex groove rib corresponding to the first concave-convex groove in the second hinge leaf is arranged at the bottom of a screw hole of the third hinge leaf, and the second concave-convex groove rib of the third hinge leaf is fixedly buckled with the first concave-convex groove rib of the second hinge leaf.

In addition, external threads are respectively arranged on the outer diameters of two ends of a limiting ring of the tightening screw, an inner hexagonal hole is respectively arranged at the center of one side end of the tightening screw, the other side of the tightening screw is respectively fixed to screw holes of the first hinge leaf and the second hinge leaf through the external threads, anti-rotation inverted teeth are respectively arranged on the upper ring face and the lower ring face of the limiting ring of the tightening screw, rubber gaskets 5 are respectively arranged at the bottoms of the limiting rings of the tightening screws at the screw holes, and a shaft hole of the third hinge leaf is fixed to the second hinge leaf through the limiting ring of the tightening screw. The screwing screw is sleeved into the inner hexagonal hole through the wrench and then is installed into the corresponding hinge leaf, the rubber gasket is clamped and fixed on the corresponding hinge leaf, and the shaft hole of the third hinge leaf is sleeved into the rotating shaft of the first hinge leaf and then is fastened and fixed on the second hinge leaf through rotation.

In summary, the first hinge leaf and the second hinge leaf of the hinge are designed to be separate structures, and the third hinge leaf and the rotating shaft are designed to be an integral body; when the hinge is installed, the shaft holes of the first hinge leaf and the second hinge leaf are respectively sleeved into the rotating shaft of the first hinge leaf, when the third hinge leaf rotates for a certain angle, the third hinge leaf is buckled into the wedging groove fixed on the second hinge leaf and is buckled into the second hinge leaf through a plurality of positions at the bottom of the third hinge leaf, and the third hinge leaf is fixed on the second hinge leaf by using the screwing screw; the rubber gasket is pressed on the corresponding hinge leaf by the tightening screw to realize the sealing function.

According to the structural characteristics, the first hinge leaf, the second hinge leaf and the third hinge leaf are made of zinc alloy parts, the tightening screws are stainless steel screws or plastic parts, and the rotating shaft and the first hinge leaf are integrally formed, so that the waterproof and anti-corrosion performance of the hinge is further improved. Simultaneously, also can adopt the components of a whole that can function independently structure to realize production assembly between pivot and the first hinge leaf, if: a process groove is formed in one side of the rotating shaft of the first hinge leaf, the rotating shaft in the first hinge leaf is fixed in the first hinge leaf in a riveting mode through the process groove in the outer diameter, and a corresponding fixing groove is formed in the outer diameter of the rotating shaft in the first hinge leaf.

Claims (7)

1. A combined hinge, the hinge of both sides of the hinge is equipped with the tightening screw (4) that two pairs of symmetries set up separately, wherein the hinge of one side is made up of second hinge leaf (2) and third hinge leaf (3), its shaft hole is emboliaed in the both ends of one side spindle of the first hinge leaf (1) of the other side while the second hinge leaf is combined with third hinge leaf; the hinge is characterized in that a hinge groove is formed in the outer diameter of a screw hole in the mounting position of a screwing screw (4) on one side of the second hinge leaf (2), an open wedging groove is formed in the inner side of the hinge groove of the second hinge leaf, a protruding wedging head is arranged on one side of a shaft hole of the third hinge leaf (3), the third hinge leaf is buckled and fixed in the hinge groove in the second hinge leaf, the third hinge leaf is mutually wedged with the wedging groove of the second hinge leaf through the wedging head, and the shaft hole of the third hinge leaf is buckled and fixed in the second hinge leaf through rotation after being sleeved in a rotating shaft of the first hinge leaf.

2. The combination hinge according to claim 1, characterized in that the wedging head of said third hinge leaf (3) is of inverted triangular shape.

3. The combination hinge according to claim 2, wherein the outer diameter of the screw hole in the hinge slot of the second hinge leaf (2) is provided with a first concave-convex groove rib, the bottom of the screw hole of the third hinge leaf (3) is provided with a second concave-convex groove rib corresponding to the first concave-convex groove in the second hinge leaf, and the second concave-convex groove rib of the third hinge leaf is fastened and fixed with the first concave-convex groove rib of the second hinge leaf.

4. The combination hinge according to claim 1, wherein the outer diameter of both ends of the position-limiting ring of the tightening screw (4) is respectively provided with an external thread, the center of one side end of the tightening screw is respectively provided with a hexagon socket, the other side of the tightening screw is respectively fixed to the screw holes of the first hinge leaf (1) and the second hinge leaf (2) through the external thread, the upper ring surface and the lower ring surface of the position-limiting ring of the tightening screw are respectively provided with anti-rotation inverted teeth, the position-limiting ring of the tightening screw at the screw hole is respectively provided with a rubber gasket (5), and the shaft hole of the third hinge leaf (3) is fixed to the second hinge leaf through the position-limiting ring of the tightening screw.

5. The combination hinge according to claim 1, characterized in that the first hinge leaf (1), the second hinge leaf (2) and the third hinge leaf (3) are zinc alloy pieces, the tightening screw (4) is a stainless steel screw, and the rotating shaft is formed integrally with the first hinge leaf.

6. The combination hinge according to claim 1, characterized in that said tightening screw (4) is a plastic piece.

7. The combination hinge according to claim 1, wherein a processing groove is formed on one side of the rotating shaft of the first hinge leaf (1), the rotating shaft in the first hinge leaf is fixed in the first hinge leaf through the processing groove with the outer diameter in a riveting manner, and a corresponding fixing groove is formed in the outer diameter of the rotating shaft in the first hinge leaf.

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