CN220726054U

CN220726054U - Self-locking hinge shaft

Info

Publication number: CN220726054U
Application number: CN202321926812.XU
Authority: CN
Inventors: 刁莉莉
Original assignee: Xuzhou Zongshen Electric Vehicle Co ltd
Current assignee: Xuzhou Zongshen Electric Vehicle Co ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2024-04-05
Anticipated expiration: 2033-07-20

Abstract

The utility model relates to a self-locking hinge shaft, wherein a hinge shaft body (1-1) is an outer shaft sleeved with an inner shaft, one end of the inner shaft of the hinge shaft body (1-1) is provided with a rectangular groove, a V-shaped elastic sheet (1-3) is arranged at one end of the inner shaft of the hinge shaft body (1-1), the groove of the inner shaft of the hinge shaft body (1-1) is used for fixing the V-shaped elastic sheet (1-3) through a limiting bulge or a limiting groove, the V-shaped elastic sheet (1-3) props against the lower end of a limiting cylinder (1-2), the limiting cylinder (1-2) extends out of an opening of the outer shaft of the hinge shaft body (1-1), the middle part of the outer shaft of the hinge shaft body (1-1) is divided into a left part and a right part, a connecting plate II (1-5) is welded and installed, the connecting plate I (1-4) is welded and installed at the inner shaft of the hinge shaft body (1-1) from the hollow part of the outer shaft, the connecting plate I (1-4) is connected with a cargo bucket plate (3), and the connecting plate II (1-5) is connected with a cargo bucket (2).

Description

Self-locking hinge shaft

Technical Field

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

Background

The hinge is long to be used and is connected with the carriage door plant, and in order to fix the carriage door plant, ensure its bearing capacity, current hinge pin is the open hole formula, the rethread cotter plays limiting displacement, that is to say two interior and exterior axles of cup jointing lock through a round pin post, and in order to prevent the round pin post from losing, just must add one section iron chain and weld it on the outer axle, this just leads to the assembly loaded down with trivial details, the consumption material is many, the round pin post of cotter also is popped out the opening easily under the long-term circumstances of road surface jolt time simultaneously, and then lead to droing, easily cause the condition that the carriage door was opened. Creating unnecessary hazards to both the loaded cargo and pedestrians at the roadside.

At present, the utility model with the patent number of CN216406484U discloses a self-locking hinge, and relates to the field of hinges; the novel U-shaped plate comprises a first U-shaped plate and a second U-shaped plate, wherein the second U-shaped plate is movably hinged in the first U-shaped plate through a pin shaft, an arc-shaped through groove and an arc-shaped clamping groove are formed in two ends of the first U-shaped plate, and the clamping groove is communicated with one end of the through groove; according to the utility model, through the limiting effect between the rotating shaft and the through groove, the rotating U-shaped plate II can be limited and fixed, so that the function of fixing the rotating piece after rotation can be realized: the automatic positioning device can realize the rapid, stable and high-precision automatic positioning of the workpiece, is convenient for automatic control and maintenance and repair of workers. However, the proposal of the application relates to a plurality of parts, is complex to assemble, adopts a U-shaped plate to connect related parts, leads to limited opening and closing angles, can only be used in a few scenes, and is not convenient to use.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides the self-locking hinge shaft which can stably lock the hinge shaft and can effectively prevent the locking failure.

In order to achieve the above purpose, the self-locking type hinge shaft comprises a hinge shaft, a cargo bucket and a cargo bucket carriage plate, wherein the upper edge of the cargo bucket is hinged with the cargo bucket carriage plate through the hinge shaft, the hinge shaft comprises a hinge shaft body, a limit cylinder, a V-shaped elastic piece, a first connecting plate and a second connecting plate, the hinge shaft body is an outer shaft sleeve inner shaft, one end of the inner shaft of the hinge shaft body is provided with a rectangular groove for installing the V-shaped elastic piece, the groove of the inner shaft of the hinge shaft body is used for fixing the V-shaped elastic piece through the limit protrusion or the limit groove, the V-shaped elastic piece props against the lower end of the limit cylinder, the limit cylinder extends out of an opening of the outer shaft of the hinge shaft body, the middle part of the outer shaft of the hinge shaft body is divided into a left part and a right part, the second connecting plate is welded and installed, the first connecting plate is welded and installed on the inner shaft of the hinge shaft body from the hollow part of the outer shaft, and the second connecting plate is connected with the cargo bucket carriage plate.

In addition, the self-locking hinge shaft according to the above embodiment of the present utility model may further have the following additional technical features:

as a further improvement of the utility model, the V-shaped spring plate may be replaced by a spring.

As a further improvement scheme of the utility model, the V-shaped elastic sheet is closed by a screw.

As a further development of the utility model, the first and second connection plates are provided with screw openings.

As a further improvement scheme of the utility model, the limit cylinder is conical with narrow upper part and wide lower part.

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.

Drawings

FIG. 1 is a schematic illustration of the installation of a self-locking hinge shaft;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a view in the B direction of FIG. 2;

in the figure: 1. 1-1 parts of hinge shaft, 1-2 parts of hinge shaft body, 1-3 parts of limit cylinder, 1-3 parts of V-shaped elastic sheet, 1-4 parts of connecting plate I, 1-5 parts of connecting plate II, 2 parts of cargo bucket, 3 parts of cargo bucket box board.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, after the self-locking hinge shaft 1 connects the bucket 2 and the bucket plate 3, the V-shaped spring plate 1-3 which only pushes the bucket plate 3 to the inner shaft of the hinge shaft body 1-1 at the locking position pushes the limit cylinder 1-2 to extend out of the opening of the outer shaft, thereby clamping the inner shaft and the outer shaft of the hinge shaft body 1-1 and locking the bucket plate 3. The utility model discloses a self-locking hinge with a patent number of CN216406484U, and relates to the field of hinges; the novel U-shaped plate comprises a first U-shaped plate and a second U-shaped plate, wherein the second U-shaped plate is movably hinged in the first U-shaped plate through a pin shaft, an arc-shaped through groove and an arc-shaped clamping groove are formed in two ends of the first U-shaped plate, and the clamping groove is communicated with one end of the through groove; according to the utility model, through the limiting effect between the rotating shaft and the through groove, the rotating U-shaped plate II can be limited and fixed, so that the function of fixing the rotating piece after rotation can be realized: the automatic positioning device can realize the rapid, stable and high-precision automatic positioning of the workpiece, is convenient for automatic control and maintenance and repair of workers. However, the proposal of the application relates to a plurality of parts, is complex to assemble, adopts a U-shaped plate to connect related parts, leads to limited opening and closing angles, can only be used in a few scenes, and is not convenient to use.

In one embodiment of the utility model, the V-shaped spring plates 1-3 may be replaced with springs in order to reduce the depth of the slot and thus the machining losses.

In one embodiment of the present utility model, the V-shaped spring piece 1-3 is closed by a screw in order to better prevent the spring or the V-shaped spring piece 1-3 from coming out.

In one embodiment of the utility model, the connection plates 1-4 and 1-5 are provided with screw openings in order to have more connection options for the connection plates 1-4 and 1-5.

In one embodiment of the utility model, in order to further reduce the processing difficulty, the limiting cylinder 1-2 can be effectively limited while not being lost, and the limiting cylinder 1-2 is in a conical shape with a narrow upper part and a wide lower part.

When in use, the self-locking hinge shaft is installed, and the device can be put into use.

When the utility model is used, the concrete work is as follows:

when the novel lock is used, the first connecting plate 1-4 drives the outer shaft of the hinge shaft body 1-1 to axially move along the inner shaft of the hinge shaft body 1-1, meanwhile, the second connecting plate 1-5 arranged on the cargo bucket 2 limits the rotation of the inner shaft of the hinge shaft body 1-1 under the action of the cargo bucket 2, the limiting cylinder 1-2 slides on the inner side of the outer shaft of the limiting cylinder 1-2 when the outer shaft of the hinge shaft body 1-1 rotates, when the opening of the outer shaft of the limiting cylinder 1-2 is reached, the limiting cylinder 1-2 stretches out from the opening of the outer shaft of the limiting cylinder 1-2 under the action of the V-shaped elastic piece 1-3, so that the inner shaft and the outer shaft of the hinge shaft body 1-1 are locked, and when the unlocking is needed, the inner shaft of the limiting cylinder 1-1 can be re-1 inner shaft of the hinge shaft body 1-1 is supported by pulling the inner shaft of the limiting cylinder when the unlocking is needed.

In summary, the self-locking hinge shaft provided by the embodiment of the utility model can be realized through the limiting cylinder 1-2 and the V-shaped elastic piece 1-3 without changing a production line by simply modifying the inner shaft and the outer shaft of the existing hinge shaft 1, so that the hinge shaft can be stably locked, and the design purpose of locking failure can be effectively prevented.

Claims

1. The self-locking hinge shaft comprises a cargo bucket (2) and a cargo bucket compartment plate (3), wherein the upper edge of the cargo bucket (2) is hinged with the cargo bucket compartment plate (3) through a hinge shaft (1), the self-locking hinge shaft is characterized in that the hinge shaft (1) comprises a hinge shaft body (1-1), a limit cylinder (1-2), a V-shaped elastic piece (1-3), a connecting plate I (1-4) and a connecting plate II (1-5), the hinge shaft body (1-1) is an outer shaft sleeve joint inner shaft, one end of the inner shaft of the hinge shaft body (1-1) is provided with a rectangular groove for installing the V-shaped elastic piece (1-3), the groove of the inner shaft of the hinge shaft body (1-1) is used for fixing the V-shaped elastic piece (1-3) through a limit bulge or a limit groove, the V-shaped elastic piece (1-3) props against the lower end of the limit cylinder (1-2), the limit cylinder (1-2) stretches out from a hole of the hinge shaft body (1-1), the outer shaft body (1-1) is divided into a left inner shaft part and a right inner shaft part and a connecting plate II (1-5) by welding, the hinge shaft body (1-1) is connected with the connecting plate II (1-1) from the hollow part of the hollow shaft (4), the second connecting plate (1-5) is connected with the cargo bucket (2).

2. A self-locking hinge shaft according to claim 1, characterized in that the V-shaped spring plate (1-3) can be replaced by a spring.

3. Self-locking hinge shaft according to claim 1 or 2, characterized in that the V-shaped spring plate (1-3) is closed by a screw.

4. The self-locking hinge shaft as claimed in claim 1, wherein the first connection plate (1-4) and the second connection plate (1-5) are provided with screw holes.

5. A self-locking hinge shaft according to claim 1 or 4, wherein the limit cylinder (1-2) has a tapered shape with a narrow upper part and a wide lower part.