CN213115900U - Shaftless hinge - Google Patents

Abstract

The utility model relates to a shaftless hinge is comparatively inconvenient to pivot installation production in the hinge product of current the same kind to and the relatively poor technical problem of stability of lock fixed knot structure of the same kind and design. The key point is that two sides of a bulge of a first hinge leaf on one side of a hinged and fixed position of a first hinge leaf and a second hinge leaf of the hinge are symmetrically provided with U-shaped buckling grooves, the bulge of the first hinge leaf is tilted towards the other side of the screw, two sides of the inside of a U-shaped opening of the second hinge leaf are symmetrically provided with raised shaft posts, two sides of the bulge of the first hinge leaf are respectively provided with a shaft groove with a C-shaped opening, and the first hinge leaf is buckled with the shaft posts of the second hinge leaf in an interference manner through the shaft grooves; after the inner and outer diameter edges of the U-shaped opening of the second hinge leaf on one side of the tightening screw are pressed against the inclined chamfer edge of the first hinge leaf and buckled into the shaft groove of the first hinge leaf, the tightening screw is arranged in the second hinge leaf, the tightening screw of the first hinge leaf is pressed against the tightening screw of the second hinge leaf, and a dislocation gap is formed at the buckling position.

Description

Shaftless hinge

Technical Field

The utility model relates to a hinge, which is a shaftless 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 rotating shaft structure. Therefore, the existing similar products are difficult to omit a pin rotating shaft structure to realize the assembly and use of two hinge leaves, and even if a protruding buckling structure is adopted to replace the pin rotating shaft structure, the problem that the hinge leaves are easy to separate and fall out exists.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide a shaftless hinge to the field, which is more inconvenient for the installation and the production of the rotary shaft in the prior similar hinge products and solves the technical problem of the poor stability of the similar lock fixing structure. The purpose is realized by the following technical scheme.

A shaftless hinge, one side of a first hinge leaf of the hinge is hinged and fixed with one side of a second hinge leaf, and one side of the first hinge leaf and one side of the second hinge leaf are provided with two pairs of symmetrically arranged tightening screws; the hinge is characterized in that U-shaped buckling grooves are symmetrically formed in two sides of a protruding part of the first hinge on one side of a hinged fixed position of the first hinge and the second hinge, the protruding part of the first hinge tilts towards the other side of the symmetry of a screwing screw, protruding shaft columns are symmetrically formed in two sides of a U-shaped opening of the second hinge, shaft grooves with C-shaped openings are respectively formed in two sides of the protruding part of the first hinge, and the first hinge is buckled with the shaft columns of the second hinge in an interference mode through the shaft grooves. Therefore, the first hinge leaf and the second hinge leaf are buckled through the shaft groove and the shaft column to be used as a rotating shaft, and the first hinge leaf and the second hinge leaf are convenient to produce, assemble, install and use.

An oblique chamfer edge is arranged on the outer diameter between the bulge of the first hinge leaf and the first hinge leaf on one side of the tightening screw, the inner and outer diameter edges of the U-shaped opening of the second hinge leaf on one side of the tightening screw are buckled into the shaft groove of the first hinge leaf through abutting against the oblique chamfer edge of the first hinge leaf, the tightening screw is arranged in the second hinge leaf, the shaft groove of the first hinge leaf and the shaft column of the second hinge are offset and staggered through the tightening screw of the first hinge leaf and the tightening screw of the second hinge leaf, and a gap is arranged between the inner and outer diameter edges of the U-shaped opening of the second hinge leaf and the oblique chamfer edge of the first hinge leaf. Therefore, after the second hinge leaf is provided with the tightening screw, the first hinge leaf and the second hinge leaf cannot rotate to the position opposite to the shaft groove of the first hinge leaf due to the propping of the tightening screw, and therefore the first hinge leaf and the second hinge leaf are difficult to separate and fall out.

The outer diameters of two ends of the 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 the screw holes of the first hinge leaf and the second hinge leaf through the external thread, and the upper ring surface and the lower ring surface of the limiting ring of the tightening screw are respectively provided with anti-rotation inverted teeth. The above is a screw for tightening of a specific structure.

The first hinge leaf and the second hinge leaf are made of zinc alloy parts, and the tightening screws are stainless steel screws. 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.

And sealing rings are respectively arranged at the joints of the tightening screws and the first hinge leaf and the second hinge leaf. The above structure facilitates the waterproof design of the 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 shaftless hinge which is hinged and fixed through convex buckling, and the structure of the similar product is improved.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a schematic sectional view of the assembly of the present invention, in which the screw of the second hinge leaf needs to be post-assembled.

Fig. 4 is a sectional view showing the second hinge leaf of fig. 3 after the tightening screws are assembled.

Fig. 5 is a cross-sectional view of the tightening screw of fig. 4 in an abutting state.

Figure number and name: 1. a first hinge leaf, 2 and a second hinge leaf, 3, and a screw is tightened.

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. 1-5, two pairs of symmetrically arranged tightening screws 3 are arranged on one side face of a first hinge leaf 1 and a second hinge leaf 2 of the hinge, external threads are respectively arranged on the outer diameters of two ends of a limiting ring of each tightening screw, hexagonal socket holes are respectively arranged in the centers of the end parts of one side of each tightening screw, the other side of each tightening screw is fixed to screw holes of the first hinge leaf and the second hinge leaf through the external threads, and anti-rotation inverted teeth are respectively arranged on the upper ring face and the lower ring face of the limiting ring of each tightening screw. The two sides of the protruding part of the first hinge leaf on one side of the hinged fixed position of the first hinge leaf and the second hinge leaf are symmetrically provided with U-shaped buckling grooves, the protruding part of the first hinge leaf tilts towards the other side of the screw, protruding shaft posts are symmetrically arranged on the two sides in the U-shaped opening of the second hinge leaf, the two sides of the protruding part of the first hinge leaf are respectively provided with a C-shaped opening shaft groove, and the first hinge leaf is buckled with the shaft posts of the second hinge leaf in an interference mode through the shaft grooves. Meanwhile, an oblique chamfer edge is arranged on the outer diameter between the bulge of the first hinge leaf and the first hinge leaf on one side of the tightening screw, after the inner and outer diameter edges of the U-shaped opening of the second hinge leaf on one side of the tightening screw are propped against the oblique chamfer edge of the first hinge leaf and are buckled into the shaft groove of the first hinge leaf, the tightening screw is arranged in the second hinge leaf, the shaft groove of the first hinge leaf and the shaft column of the second hinge are propped against the tightening screw of the second hinge leaf for dislocation through the tightening screw of the first hinge leaf, and a gap is arranged between the inner and outer diameter edges of the U-shaped opening of the second hinge leaf and the oblique chamfer edge of the first hinge leaf.

Therefore, the first hinge leaf and the second hinge leaf are assembled and connected at a certain angle, and the screwing screws are respectively assembled after the first hinge leaf and the second hinge leaf are rotated and leveled. When the hinge is used, the corresponding hinge leaf can be blocked by screwing the screw, the first hinge leaf and the second hinge leaf are prevented from being separated from each other, and the first hinge leaf and the second hinge leaf are further prevented from being loosened.

Meanwhile, with the structural characteristics, the first hinge leaf and the second hinge leaf are made of zinc alloy, the tightening screw is a stainless steel screw or a plastic piece, and sealing rings are respectively arranged at the joints of the tightening screw, the first hinge leaf and the second hinge leaf, so that the overall corrosion-resistant and waterproof effects of the product are enhanced.

Claims (6)

1. A shaftless hinge, one side of a first hinge leaf (1) of the hinge is hinged and fixed with one side of a second hinge leaf (2), and one side of the first hinge leaf and one side of the second hinge leaf are provided with tightening screws (3) which are arranged symmetrically in pairs; the novel hinge is characterized in that U-shaped buckling grooves are symmetrically formed in two sides of a protruding portion of the first hinge leaf on one side of a hinged fixing portion of the first hinge leaf (1) and the second hinge leaf (2), the protruding portion of the first hinge leaf tilts towards the other side of the screw (3), protruding shaft posts are symmetrically formed in two sides of a U-shaped opening of the second hinge leaf, shaft grooves with C-shaped openings are formed in two sides of the protruding portion of the first hinge leaf respectively, and the first hinge leaf is buckled with the shaft posts of the second hinge leaf in an interference mode through the shaft grooves.

2. The shaftless hinge according to claim 1, wherein an oblique chamfer edge is provided on the outer diameter between the protrusion of the first hinge leaf (1) and the first hinge leaf on the tightening screw (3) side, after the inner and outer diameter edges of the U-shaped opening of the second hinge leaf (2) on the tightening screw side are buckled into the shaft groove of the first hinge leaf by abutting against the oblique chamfer edge of the first hinge leaf, the second hinge leaf is provided with the tightening screw, the shaft groove of the first hinge leaf and the shaft post of the second hinge are dislocated by abutting against the tightening screw of the first hinge leaf and the tightening screw of the second hinge leaf, and a gap is provided between the inner and outer diameter edges of the U-shaped opening of the second hinge leaf and the oblique chamfer edge of the first hinge leaf.

3. The shaftless hinge according to claim 1, wherein the outer diameter of both ends of the spacing ring of the tightening screw (3) 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 on the screw holes of the first hinge leaf (1) and the second hinge leaf (2) through the external thread, and the upper ring surface and the lower ring surface of the spacing ring of the tightening screw are respectively provided with anti-rotation inverted teeth.

4. The shaftless hinge according to claim 1, wherein said first hinge leaf (1) and said second hinge leaf (2) are zinc alloy pieces and said tightening screw (3) is a stainless steel screw.

5. The shaftless hinge according to claim 4, wherein said tightening screw (3) is a plastic part.

6. The shaftless hinge according to claim 1, wherein the joints of the tightening screw (3) and the first hinge leaf (1) and the second hinge leaf (2) are respectively provided with a sealing ring.

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