CN216360948U

CN216360948U - Detachable self-locking hinge

Info

Publication number: CN216360948U
Application number: CN202122662260.3U
Authority: CN
Inventors: 董鸿亮; 龚军晖; 梁永盛
Original assignee: Guangdong Weizhaoye Photoelectric Energy Saving Co ltd
Current assignee: Guangdong Weizhaoye Photoelectric Energy Saving Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-04-22
Anticipated expiration: 2031-11-02

Abstract

The utility model relates to the technical field of hinges, and discloses a detachable self-locking hinge, which comprises: the hinge pin detachably penetrates through the first leaf and the second leaf and enables the first leaf and the second leaf to form a rotary installation. The hinge disclosed by the utility model has the advantages that the structure is simple, the assembly is convenient, the self-locking can be realized through the corresponding positioning bolt and the elastic lock plunger after the assembly and the forming, the adjacent two connecting pieces connected through the hinge are ensured to be positioned at a preset angle, and the problems of looseness and misalignment of parts caused by repeated disassembly and assembly of the hinge are avoided. The foldable frame arm is particularly suitable for being applied to frame arms which can be unfolded and folded.

Description

Detachable self-locking hinge

Technical Field

The utility model relates to the technical field of hinges, in particular to a detachable self-locking hinge.

Background

Hinges, also known as hinges, are often formed in two-fold type, are parts that connect two parts of an object and enable the two parts to move, and are used for cabinet doors, windows, doors and the like. In the prior art, the hinge is convenient to install and use, and under certain conditions, the hinge is further arranged to be of a structure that a mandrel and left and right leaves are detachable. However, after the installation and the disassembly are carried out for a plurality of times, the structure is easy to be loosened, and the quality problems that two adjacent connecting pieces can not be ensured to be on the same straight line and the like can easily occur.

In the prior art, although some hinges with self-locking function exist, for example, a chinese utility model patent with publication number CN87214561U discloses a hinge capable of automatically positioning and locking, which comprises a mandrel, a spring, a leaf, a guide pin, a positioning pin, a guide groove and a positioning groove, wherein the mandrel is provided with the positioning pin and the guide pin, the leaf is provided with the positioning groove and the guide groove, and the positioning groove is a semicircular hole or a 90-degree inclined plane. The guide groove is a rectangular groove with one end opened. But the structure is comparatively complicated, and whole hinge also can not satisfy the operation requirement of self-disassembly, equipment.

Disclosure of Invention

The utility model aims to provide a self-locking hinge which is simple in structure, convenient to use and capable of being automatically disassembled and assembled.

In order to achieve the purpose, the utility model adopts the following technical scheme.

A knock-down self-locking hinge comprising: the hinge pin is detachably arranged on the first leaf and the second leaf in a penetrating mode and enables the first leaf and the second leaf to form rotating installation.

More preferably, an unlocking switch for manual unlocking is connected to the elastic latch.

More preferably, a tension spring or a compression spring is connected to the elastic lock bolt, and the tension spring or the compression spring provides an automatic resetting force for the elastic lock bolt.

More preferably, one of the positioning bolt and the elastic lock bolt is provided with a lock hole, the other of the positioning bolt and the elastic lock bolt is provided with a pin corresponding to the lock hole, and the bolt connection is realized through the matching of the pin and the lock hole.

More preferably, the positioning bolt is provided with an inclined surface corresponding to the elastic lock bolt, and the inclined surface is in pressing contact with the elastic lock bolt in the process that the positioning bolt is inserted into the positioning slot.

More preferably, the unlocking switch is provided with a guide groove, the corresponding leaf is provided with a guide post matched with the guide groove, and the guide groove and the guide post are used for limiting the running track of the unlocking switch.

More preferably, extension legs for mounting the hinge are respectively formed on the first leaf and the second leaf, and mounting and fixing holes are formed in the extension legs.

More preferably, the attaching sides of the first sheet and the second sheet are both planes, and the extending leg is perpendicular to the planes.

The utility model has the beneficial effects that: compared with the prior art, the hinge disclosed by the utility model has the advantages that the structure is simple, the assembly is convenient, the self-locking can be realized through the corresponding positioning bolt and the elastic lock plunger after the assembly and the forming, the adjacent two connecting pieces connected through the hinge are further ensured to be positioned at a preset angle (such as the same straight line), and the problems of part looseness and misalignment caused by repeated disassembly and assembly of the hinge are avoided. In addition, the hinge structure combining self-locking with shifting unlocking is particularly suitable for being applied to frame arms which can be unfolded and folded, the frame arms at two ends are self-locked after being unfolded, and the unfolded frame can be prevented from being folded accidentally.

Drawings

Fig. 1 is a schematic structural view of the self-locking hinge provided by the utility model.

Fig. 2 shows a top view of fig. 1.

Fig. 3 is a bottom view of fig. 1.

Fig. 4 is a perspective view of the self-locking hinge provided by the utility model.

Fig. 5 is a perspective view of the self-locking hinge of the present invention from another perspective.

Fig. 6 is a bolt connection diagram of the positioning bolt and the positioning slot.

Fig. 7 shows another bolt connection of the positioning bolt and the positioning slot.

Reference numerals indicate the same.

1: first sheet, 2: second sheet, 3: pin shaft, 4: positioning bolt, 5: positioning slot, 6: pressing piece, 7: pressure spring, 8: a tension spring.

1-1, 2-1: extension leg, 1-2/2-2: and installing a fixing hole.

4-1: pin hole, 4-2: a bevel.

5-1: and a spring pin.

6-1: guide groove, 6-2: and a guide post.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the utility model, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. The embodiments described below are exemplary and are intended to be illustrative of the utility model, but are not to be construed as limiting the utility model.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

As shown in fig. 1 to 5, a detachably assembled self-locking hinge includes: the hinge pin comprises a first leaf 1, a second leaf 2 and a pin shaft 3, wherein the pin shaft 3 is detachably arranged on the first leaf 1 and the second leaf 2 in a penetrating manner and enables the first leaf 1 and the second leaf 2 to form a rotating installation.

The first sheet 1 and the second sheet 2 are respectively provided with a positioning bolt 4 and a positioning slot 5 at the joint side, the positioning bolt 4 is provided with a pin hole 4-1, the positioning slot 5 is internally provided with a spring pin 5-1 which corresponds to the pin hole 4-1 and can automatically reset, and a pressing piece 6 is connected with the spring pin 5-1 and is used for realizing the manual adjustment of the position of the spring pin 5-1.

In this embodiment, the positioning latch 4 is disposed on the first sheet 1, the positioning slot 5 is disposed on the second sheet 2, the pressing member 6 and the spring pin 5 are integrally formed, the pressing member 6 extends out from a side surface of the second sheet 2, and unlocking can be achieved by pressing the pressing member 6. Obviously, in some embodiments, the positions of the positioning pin 4 and the positioning slot 5 can be reversed, and the pressing member 6 can be replaced by other switch members as long as the function of moving the position of the spring pin is achieved.

The self-locking hinge of the detachable assembly provided by the embodiment has the working principle that: 1) during assembly, the first sheet 1, the second sheet 2 and the pin shaft 3 can be pre-assembled and molded according to different requirements, and then the first sheet 1 and the second sheet 2 are connected with two adjacent connecting pieces to be connected; or the first leaf 1 and the second leaf 2 can be connected with two adjacent connecting pieces to be connected, then the pin shaft 3 penetrates through the shaft holes of the first leaf 1 and the second leaf 2, and the tail part of the pin shaft 3 is screwed with a nut. 2) When the first sheet 1 and the second sheet 2 are folded and folded, the positioning bolt 4 is just inserted into the positioning slot 5 and extrudes the spring pin 5-1, after the positioning bolt 4 is inserted in place, the pin hole 4-1 is aligned with the spring pin 5-1, and the spring pin 5-1 is automatically inserted into the pin hole 4-1 under the action of the reset spring to realize self-locking; when unlocking, the spring pin 5-1 is withdrawn from the pin hole 4-1 by touching the pressing piece 6.

Compared with the prior art, the self-locking hinge capable of being disassembled and assembled is simple in structure and convenient to assemble, self-locking can be achieved through the corresponding positioning bolt and the elastic lock bolt after assembly and forming, and therefore two adjacent connecting pieces connected through the hinge are guaranteed to be located at a preset angle (such as the same straight line), and the problems that parts are loosened and misaligned due to repeated disassembling and assembling of the hinge are avoided. In addition, the hinge structure combining self-locking with shifting unlocking is particularly suitable for being applied to frame arms which can be unfolded and folded, the frame arms at two ends are self-locked after being unfolded, and the unfolded frame can be prevented from being folded accidentally.

Referring to fig. 2 again, preferably, an inclined surface 4-2 corresponding to the spring pin 5-1 is further provided on the positioning pin 4. Therefore, in the process that the positioning bolt 4 is inserted into the positioning slot 5, the spring pin 5-1 can be better extruded, and the spring pin 5-1 is prevented from being damaged due to accidental high-force impact.

As shown in fig. 3, a guide groove 6-1 is preferably formed in the pressing member 6, and a guide post 6-2 engaged with the guide groove 6-1 is preferably formed on the corresponding leaf. In this way, the pressing piece 6 runs along the track defined by the guide groove 6-1 and the guide column 6-2 during the back and forth movement, and is more stable and reliable.

In the embodiment, the first sheet 1 and the second sheet 2 are preferably square blocks, each block is provided with an extension pin 1-1/2-1 perpendicular to the block, and the extension pins 1-1 and 2-1 are provided with mounting and fixing holes 1-2/2-2; therefore, the connecting requirement of the frame arms which can be unfolded and folded can be better met. Obviously, in some embodiments, the shape of the first sheet 1 and the second sheet 2 can be appropriately changed by those skilled in the art according to the needs. As for the extension foot, it only plays a role in connection and fixation; in some embodiments, the extension foot can be omitted, and the hinge is directly connected in a metal welding mode; or one or more surfaces on the extension foot are made into structural parts for direct prolonged use according to the needs. The shape and the extending direction of the extending feet 1-1 and 2-1 can be adjusted according to the needs, for example, the extending feet are extended out in the form of a sleeve with the whole appearance, and the number of the mounting and fixing holes can be one, two or even more; the present embodiment is not limited.

As for the materials of the first sheet 1, the second sheet 2 and the pin shaft 3, the known zinc alloy, aluminum alloy, copper alloy or stainless steel parts can be used; the material is not limited by the above examples.

Referring to fig. 6 and 7, the spring pin 5-1 may be provided in various forms, such as a compression spring 7 shown in fig. 6, a tension spring 8 shown in fig. 7, and the like. Obviously, the unlocking mode is not limited to the pressing unlocking mode, and any unlocking mode which is known in the prior art or can be realized in the future and can push the spring pin 5-1 to move is within the protection scope of the utility model.

In addition, the locking form of the positioning bolt 4 and the positioning slot 5 is not limited to the pin hole 4-1 and the spring pin 5-1, which are exemplified above, and a hole may be formed in the spring pin, and then a locking hook is arranged on the positioning bolt 4 as long as the bolt connection between the positioning bolt 4 and the spring pin can be realized; and is not limited to the above examples.

It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the utility model is not limited to the specific embodiments described above, and that modifications and substitutions based on the teachings of the art may be made without departing from the scope of the utility model as defined by the appended claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.

Claims

1. A knock-down self-locking hinge comprising: the hinge pin is detachably arranged on the first leaf and the second leaf in a penetrating mode and enables the first leaf and the second leaf to form rotating installation.

2. The self-locking hinge of claim 1, wherein an unlocking switch is connected to the elastic locking bolt for manual unlocking.

3. The detachable self-locking hinge according to claim 1, wherein a tension spring or a compression spring is connected to the elastic lock bolt, and the tension spring or the compression spring provides an automatic restoring force to the elastic lock bolt.

4. The detachable self-locking hinge as claimed in claim 1, wherein one of the positioning pin and the elastic lock bolt is provided with a lock hole, and the other of the positioning pin and the elastic lock bolt is provided with a pin corresponding to the lock hole, and the bolt connection is realized by the cooperation of the pin and the lock hole.

5. The detachable self-locking hinge as claimed in claim 1, wherein the positioning pin has an inclined surface corresponding to the elastic lock bolt, and the inclined surface is in pressing contact with the elastic lock bolt during the insertion of the positioning pin into the positioning slot.

6. The detachable self-locking hinge according to claim 2, wherein the unlocking switch is provided with a guide groove, the corresponding leaf is provided with a guide post engaged with the guide groove, and the guide groove and the guide post are used for limiting a moving track of the unlocking switch.

7. The detachable self-locking hinge as claimed in claim 1, wherein the first and second leaves are respectively formed with an extension leg for mounting the hinge, and the extension leg is provided with a mounting hole.

8. The self-locking hinge as recited in claim 7, wherein the first and second leaves have a flat surface on the sides to which the extension legs are attached, and the extension legs are perpendicular to the flat surface.