CN110697239B

CN110697239B - Self-locking box hasp

Info

Publication number: CN110697239B
Application number: CN201911009577.8A
Authority: CN
Inventors: 张雅静; 任静茹; 倪伟; 郑环峰; 李秀文; 闫云飞; 庄国顺
Original assignee: Shanxi Pingyang Industry Machinery Co Ltd
Current assignee: Shanxi Pingyang Industry Machinery Co Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2021-04-23
Anticipated expiration: 2039-10-23
Also published as: CN110697239A

Abstract

The invention relates to the technical field of hasps, in particular to a self-locking box hasp, and aims to solve the technical problem that the existing hasp is easy to trip. The following technical scheme is adopted: including hasp and lower hasp, lower hasp includes the fixing base, the handle, even frame, latched device and self-locking mechanism, the upper end expert of handle articulates on the fixing base, the lower extreme of even frame articulates the middle part at the handle, latched device includes the mount pad, housing screw and lock nut, the mount pad is located the upper end even frame, the mount pad middle part is equipped with the screw, housing screw twists in the screw, and housing screw's lower extreme stretches out in the below of mount pad, the upper end is passed through lock nut and is locked on the mount pad, self-locking mechanism includes from the hasp, from the card axle, the torsional spring, horizontal arrangement under for strip and the auto-lock state from the hasp, articulate on the fixing base and pass through torsional spring coupling between this end and the fixing base from the one end of hasp, be equipped with the draw-in groove from the middle part lower limb of hasp, from.

Description

Self-locking box hasp

Technical Field

The invention relates to the technical field of hasps, in particular to a self-locking box hasp.

Background

The hasp mainly functions in enabling the case lid to cover on the box body more closely, and the current stainless steel flat nozzle hasp, spring hasp, regulation hasp etc. of generally having. The buckles are easy to be released when being vibrated and impacted, so that the sealing function of the packing box is failed and the like.

Disclosure of Invention

The invention aims to solve the technical problem that the existing hasp is easy to release. Therefore, the invention provides a self-locking box hasp.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the self-locking box body hasp comprises an upper hasp and a lower hasp, the upper hasp is in a hook shape, the lower hasp comprises a fixed seat, a handle, a connecting frame, a latching mechanism and a self-locking mechanism, the upper end of the handle is hinged to the fixed seat through a first hinged shaft, the lower end of the connecting frame is hinged to the vertical middle part of the handle through a second hinged shaft, the first hinged shaft is parallel to the second hinged shaft, the latching mechanism comprises an installation seat, a compression screw and a locking nut, the installation seat is integrally formed or fixedly connected to the upper end of the connecting frame, a screw hole is formed in the middle of the installation seat, the axis of the screw hole is vertically arranged in a locking state, the compression screw is screwed in the screw hole, the lower end of the compression screw extends out of the lower end of the installation seat, the upper end of the compression screw is locked on the installation seat through the locking nut, the lower end of the compression screw is clamped in the, the self-locking mechanism comprises a self-locking buckle, a self-locking clamping shaft and a torsion spring, the self-locking buckle is in a strip shape and is horizontally arranged in a self-locking state, one end of the self-locking buckle is hinged to the fixing seat and is connected with the fixing seat through the torsion spring, the torsion spring drives the self-locking buckle to rotate downwards, a clamping groove is formed in the lower edge of the middle of the self-locking buckle, the self-locking clamping shaft is fixed on the handle, and the self-locking clamping shaft is clamped in the clamping groove or separated from the clamping groove when the self.

When the box cover is installed, the upper hasp and the lower hasp are connected with the box cover and the box body respectively.

When the box is closed, the self-locking buckle is pushed up by one hand to unlock the handle, the handle is lifted upwards, the compression screw is conveyed to the fixing position of the upper buckle, then the handle is pressed downwards, the second hinge shaft moves downwards under the action of the handle and rotates around the first hinge shaft, the second hinge shaft drives the connecting frame to rotate downwards and around the first hinge shaft, the box body and the box cover are hooked by the compression screw at the moment and cannot move freely, and when the handle moves in place, the buckle can be used for tightly connecting the box body and the box cover (when the buckle is used in groups, the extension length of the compression screw can be pre-calculated or the compression nut can be adjusted by adopting a corresponding tool after compression). Meanwhile, when the handle moves in place, the self-locking mechanism works, namely, the groove part of the self-locking buckle is just clamped on the self-locking clamping shaft, the self-locking buckle is fixed under the action of the torsion spring, and the handle cannot be lifted, so that the hasp is locked.

When the box is opened, the hand for operating the hasp uses the thumb to push the self-locking hasp, drives the torsion spring to be stressed and compressed, and the self-locking hasp is separated from the self-locking clamping shaft, and the handle is lifted upwards, and the handle rotates upwards by taking the first articulated shaft as the axis, and the second articulated shaft on the handle and the connecting frame move upwards, and the connecting frame drives the locking mechanism to move upwards, so that the compression screw is separated from the upper hasp, and the box opening is completed.

The invention has the beneficial effects that:

1) the self-locking box body hasp can realize connection and locking between the box body and the box cover, is convenient to operate and simple to process, and can quickly realize opening and closing of the box.

2) The self-locking box body hasp provided by the invention is provided with the novel self-locking mechanism, and the self-locking of the hasp is realized through the self-locking mechanism, so that the locking reliability of the hasp is improved.

3) The self-locking box body hasp is provided with the locking mechanism, and the locking pressure can be adjusted through the locking nut, so that the pressure between the box body and the box cover is uniformly distributed, the compression amount of the sealing strip is more uniform, and the sealing reliability of the packing box is improved.

Drawings

FIG. 1 is a front view of the self-locking case hasp of the present invention;

FIG. 2 is a side view of the self-locking case hasp of the present invention.

In the figure:

1, installing a hasp; 2, a fixed seat; 3, a handle; 4, connecting frames; 5-a first hinged shaft; 6-a second hinged shaft; 7, mounting a base; 8, pressing a screw; 9-locking a nut; 10, self-locking; 11-self-locking clamping shaft; 12-torsion spring.

Detailed Description

Referring to fig. 1 to 2, the self-locking box hasp of the invention comprises an upper hasp 1 and a lower hasp, wherein the upper hasp 1 is hook-shaped, the lower hasp comprises a fixed seat 2, a handle 3, a connecting frame 4, a locking mechanism and a self-locking mechanism, the upper end of the handle 3 is hinged on the fixed seat 2 through a first hinged shaft 5, the lower end of the connecting frame 4 is hinged on the vertical middle part of the handle 3 through a second hinged shaft 6, the first hinged shaft 5 is parallel to the second hinged shaft 6, the locking mechanism comprises an installation seat 7, a compression screw 8 and a locking nut 9, the installation seat 7 is integrally formed or fixedly connected with the upper end of the connecting frame 4, the middle part of the installation seat 7 is provided with a screw hole, the axis of the screw hole is vertically arranged in a locking state, the compression screw 8 is screwed in the screw hole, the lower end of the compression screw 8 extends out of the lower part of the installation seat 7, and the upper end of the compression screw 8, the lower extreme joint of housing screw 8 breaks away from in going up hasp 1 or from going up hasp 1 when handle 3 pulls, self-locking mechanism includes from hasp 10, auto-lock card axle 11, torsional spring 12, be horizontal arrangement under strip and the auto-lock state from hasp 10, the one end of auto-lock buckle 10 articulates on fixing base 2 and is connected through torsional spring 12 between this end and the fixing base 2, torsional spring 12 orders about from hasp 10 and rotates downwards, is equipped with the draw-in groove from the middle part lower limb of hasp 10, auto-lock card axle 11 is fixed on handle 3, pulls auto-lock card axle 11 card when auto-lock buckle 10 in the draw-in groove or break away from in the draw-in groove.

When the box cover is installed, the upper hasp 1 and the lower hasp are connected with the box cover and the box body respectively.

When the box is closed, the handle 3 is pushed up from the lock catch 10 by one hand to be unlocked, the handle 3 is lifted upwards, the compression screw 8 is conveyed to the fixed position of the upper hasp 1, then the handle 3 is pressed downwards, the second articulated shaft 6 moves downwards under the action of the handle 3 and rotates around the first articulated shaft 5, the second articulated shaft 6 drives the connecting frame 4 to rotate downwards and around the first articulated shaft, the box body and the box cover are hooked by the compression screw 8 at the moment and cannot move freely, when the handle 3 moves in place, the hasp can enable the box body and the box cover to be tightly connected when the hasp is used in a group, the extension length of the compression screw 8 can be calculated in advance or the compression nut is adjusted by adopting a corresponding tool after compression. Meanwhile, when the handle 3 moves in place, the self-locking mechanism works, namely, the groove part of the self-locking buckle 10 is just clamped on the self-locking clamping shaft 11, the self-locking buckle 10 is fixed under the action of the torsion spring 12, and the handle 3 cannot be lifted, so that the hasp is locked.

When unpacking, the hand of operation hasp uses the thumb to promote from hasp 10, drives torsional spring 12 atress compression, and auto-lock is detained 10 and is broken away from with auto-lock card axle 11, to lifting handle 3 upwards, and handle 3 will use first articulated shaft 5 to upwards rotate as the axis, and second articulated shaft 6 on the handle 3 and even 4 upward movements on the frame link 4 drive locking mechanism and shift up, make housing screw 8 break away from in last hasp 1, accomplish unpacking.

Further, handle 3 and even frame 4 all are U shaped plate structure, and the handle opening up, fixing base 2 is located between the both sides board of handle 3 and the both ends of first articulated shaft 5 alternate respectively in the both sides board of handle 3, and even the opening of frame 4 is down, handle 3 is located between the both sides board of even frame 4 and second articulated shaft 6 alternates respectively in even both sides board of frame 4. With such a structure, the structural stability is stronger. The U-shaped plate is a common structure in the mechanical field, namely, the same end of two parallel side plates is smoothly connected through an arc plate to form an integral structure.

As a preferred position of the self-locking mechanism, the self-locking clamping shaft 11 is located below the connecting frame 4, so that an operator can push the self-locking buckle 10 conveniently.

Preferably, the connecting frame 4 is arc-shaped, so that the appearance quality is high and the structural stability is stronger.

Furthermore, an upper inclined part convenient to push is arranged at the other end of the self-locking buckle 10, so that unlocking is convenient.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Auto-lock box hasp, including hasp (1) and lower hasp, hasp (1) is hook-like, its characterized in that on: the lower hasp comprises a fixed seat (2), a handle (3), a connecting frame (4), a locking mechanism and a self-locking mechanism, the upper end of the handle (3) is hinged on the fixed seat (2) through a first hinged shaft (5), the lower end of the connecting frame (4) is hinged at the vertical middle part of the handle (3) through a second hinged shaft (6), the first hinged shaft (5) is parallel to the second hinged shaft (6), the locking mechanism comprises a mounting seat (7), a compression screw (8) and a locking nut (9), the mounting seat (7) is integrally formed or fixedly connected at the upper end of the connecting frame (4), a screw hole is arranged at the middle part of the mounting seat (7), the axis of the screw hole is vertically arranged in a locking state, the compression screw (8) is screwed in the screw hole, the lower end of the compression screw (8) extends out of the lower part of the mounting seat (7), and the upper end of the compression screw is locked on the mounting seat (7) through the locking nut (9), the lower extreme joint of housing screw (8) breaks away from in last hasp (1) or from last hasp (1) when handle (3) is pulled, self-locking mechanism includes from hasp (10), auto-lock card axle (11), torsional spring (12), from hasp (10) be horizontal arrangement under strip and the auto-lock state, articulate on fixing base (2) and be connected through torsional spring (12) between this end and fixing base (2) from the one end of hasp (10), torsional spring (12) orders about from hasp (10) and rotates downwards, is equipped with the draw-in groove from the middle part lower limb of hasp (10), auto-lock card axle (11) are fixed on handle (3), and auto-lock card axle (11) card breaks away from in the draw-in groove or from the draw-in groove when pulling from hasp (10).

2. The self-locking box hasp of claim 1, wherein: handle (3) and link frame (4) all are U template structure, and the handle opening up, fixing base (2) are located between the both sides board of handle (3) and the both ends of first articulated shaft (5) alternate respectively in the both sides board of handle (3), link the opening of frame (4) down, handle (3) are located between the both sides board of linking frame (4) and second articulated shaft (6) alternate respectively in the both sides board of linking frame (4).

3. The self-locking box hasp of claim 2, wherein: the connecting frame (4) is arc-shaped.

4. The self-locking box hasp of any one of claims 1-3, wherein: the self-locking clamping shaft (11) is positioned below the connecting frame (4).

5. The self-locking box hasp of claim 4, wherein: the other end of the self-locking buckle (10) is provided with an upper inclined part which is convenient to push.