CN107420385B

CN107420385B - Self-locking structure and suspended ceiling device and drawer with same

Info

Publication number: CN107420385B
Application number: CN201710657829.2A
Authority: CN
Inventors: 余文钊; 周东珊; 步挺; 薛猛; 武鹏; 李梦珺; 周雪萍
Original assignee: Zhejiang Yasha Decoration Co Ltd
Current assignee: Zhejiang Yasha Decoration Co Ltd
Priority date: 2017-08-03
Filing date: 2017-08-03
Publication date: 2023-06-23
Anticipated expiration: 2037-08-03
Also published as: CN107420385A

Abstract

The invention discloses a self-locking structure, a suspended ceiling device with the same and a drawer. The self-locking structure comprises a bearing with a bearing flange, a control shaft, a shaft sleeve and a cross locking piece with a locking flange, wherein the control shaft comprises a shaft rod fixedly connected with the bearing and an end part which is positioned at the front end of the shaft rod and is in a straight shape; the end part of the control shaft passes through the through groove of the cross locking piece and then can be rotated for 90 degrees to be locked in the first limit groove under the action of screw torque. The self-locking structure is simple in structure and convenient to use, and can be hidden and built in parts to realize assembly among the parts without being regulated by using an external tool.

Description

Self-locking structure and suspended ceiling device and drawer with same

Technical Field

The invention relates to the technical field of building assembly, in particular to a self-locking structure, a suspended ceiling device with the self-locking structure and a drawer.

Background

The fastener, as a connecting mechanism, has very wide application in various assembly products, and has the advantages of convenient operation, strong connectivity, high stability, long service life and the like. Among them, bolts and nuts are the most widely used type of fasteners. However, in the use process, the connection or separation of the bolt and the nut is often realized by rotating the nut by means of external force, and when the installation precision is involved, a great deal of time is required to adjust the relative position of the bolt and the nut.

Disclosure of Invention

The invention provides a self-locking structure, a suspended ceiling device with the self-locking structure and a drawer to solve the technical problems.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

the first aspect of the embodiment of the invention provides a self-locking structure, which comprises a bearing with a bearing flange, a control shaft, a shaft sleeve and a cross lock catch piece with a lock catch flange, wherein the control shaft comprises a shaft rod fixedly connected with the bearing and an end part which is positioned at the front end of the shaft rod and is in a shape like a Chinese character, the shaft sleeve is sleeved on the shaft rod, the center of the cross lock catch piece is provided with a straight through groove, two sides of the through groove on one surface of the cross lock catch piece, which is opposite to the shaft sleeve, are respectively provided with a first limit groove which is in a ladder shape with the through groove, and the through groove and the first limit groove are in a cross lock catch; the end part of the control shaft passes through the through groove of the cross locking piece and then can rotate for 90 degrees to be locked in the first limit groove under the action of screw torque.

Preferably, the shaft lever is provided with external threads, the shaft sleeve is provided with internal threads, the internal threads of the shaft sleeve are matched with the external threads of the control shaft, and the shaft sleeve is connected to the control shaft through threads.

Preferably, two sides of a through groove on one surface of the cross locking piece, which faces the shaft sleeve, are respectively provided with a second limit groove which is in a ladder shape with the through groove, and the shaft sleeve is provided with a clamping part which is matched with the through groove and the second limit groove; when the end part of the control shaft is locked in the first limit groove, the clamping part is clamped in the through groove and the second limit groove.

Preferably, the control shaft is sleeved with a first spring.

Preferably, the cross locking device further comprises two guide rods, one ends of the guide rods are fixed on the flange of the cross locking device, and the guide rods are sleeved with second springs.

According to a second aspect of the embodiment of the invention, there is provided a ceiling device with a self-locking structure, comprising a ceiling and a fixing tube fixed on the indoor top, wherein the ceiling and the fixing tube are connected through a plurality of self-locking structures as described above, a cross locking piece of the self-locking structure is fixed on the ceiling, and a bearing of the self-locking structure is fixed on the fixing tube.

Preferably, the cross locking pieces are uniformly distributed at the edge of the suspended ceiling.

According to a third aspect of the embodiment of the invention, there is provided a drawer with a self-locking structure, comprising a drawer outer frame and a drawer inner box which can slide in the drawer outer frame, wherein the drawer outer frame and the drawer inner box are in locking connection through the self-locking structure, a cross locking piece of the self-locking structure is fixed at the bottom of the drawer inner box, a bearing of the self-locking structure is fixed on the bottom end face of the drawer outer frame, a guide rod hole for sliding a guide rod is further arranged on the bottom end face of the drawer outer frame, and the guide rod is inserted in the guide rod

And the rod hole.

Compared with the prior art, the self-locking structure is simple in structure and convenient to use, and can be hidden and built in parts to realize assembly among the parts without external tool adjustment.

Drawings

FIG. 1 is a schematic view of a self-locking structure of the present invention;

FIG. 2 is a schematic view of an exploded view of the self-locking structure of FIG. 1;

FIG. 3 is an exploded view of the self-locking structure of FIG. 1 from another perspective;

FIG. 4 is an exploded view of another embodiment of the self-locking structure of the present invention;

FIG. 5 is an exploded view of the self-locking structure of FIG. 4 from another perspective;

FIG. 6 is a schematic view of a ceiling apparatus with self-locking structure according to the present invention;

FIG. 7 is an enlarged schematic view of portion A of FIG. 6;

FIG. 8 is a schematic view of a drawer with self-locking feature of the present invention;

FIG. 9 is a schematic view of a drawer-in-drawer cabinet with self-locking feature of the present invention;

fig. 10 is a schematic view of a drawer outer frame in a drawer with a self-locking structure according to the present invention.

In the figure, 1-bearing, 2-control shaft, 3-shaft sleeve, 4-cross locking piece, 5-guide rod, 6-first spring, 7-second spring, 8-through groove, 9-first limit groove, 10-second limit groove, 21-shaft lever, 22-end, 23-clamping part, 24-bearing flange, 25-locking flange, 31-suspended ceiling, 32-fixed pipe, 41-drawer inner box, 42-drawer outer frame and 43-guide rod hole.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

As shown in fig. 1, a self-locking structure comprises a bearing 1 with a bearing flange 24, a control shaft 2, a shaft sleeve 3 and a cross locking piece 4 with a locking flange 25.

As shown in fig. 2 and 3, the control shaft 2 includes a shaft rod 21 fixedly connected with the bearing 1, and an end 22 in a straight shape at the front end of the shaft rod 21, and the shaft sleeve 3 is sleeved on the shaft rod 21. The shaft rod 21 of the control shaft 2 may be provided with external threads, the shaft sleeve 3 may be provided with internal threads, and the internal threads of the shaft sleeve 3 are adapted to the external threads of the control shaft 2, so that the shaft sleeve 3 is screwed onto the shaft rod 21 of the control shaft 2.

The center of the cross locking piece 4 is provided with a straight through groove 8, two sides of the through groove 8 on one surface of the cross locking piece 4, which is away from the shaft sleeve 3, are respectively provided with a first limit groove 9 which is in a ladder shape with the through groove 8, and the through groove 8 and the first limit groove 9 form a cross lock catch; the two first limit grooves 9 are positioned on the middle vertical line of the through groove 8.

The two sides of the through groove 8 on one surface of the cross locking piece 4 facing the shaft sleeve 3 can be respectively provided with a second limit groove 10 which is in a ladder shape with the through groove 8, and the two second limit grooves 10 are all positioned on the middle vertical line of the through groove 8. The shaft sleeve 3 is provided with a clamping part 23 which is matched with the through groove 8 and the second limit groove 10, and the clamping part 23 can be four protrusions which are cross-shaped.

The end 22 of the control shaft 2 passes through the through groove 8 of the cross locking piece 4 and then can be rotated for 90 degrees to be locked in the first limit groove 9 under the action of screw torque.

The self-locking structure can be used as an irreversible self-locking device, for example, parts such as a decorative suspended ceiling, large-scale equipment or hanging products are in a vertical assembly occasion.

When the device is specifically used, the control shaft 2 is assembled on the bearing 1, the shaft sleeve 3 is assembled on the control shaft 2, then the bearing 1 is fixed on a fixed point, the cross locking piece 4 is assembled on an object to be fixed, the whole device is vertically used, the object to be fixed is slowly lifted, and the control shaft 2 and the cross locking piece 4 are kept to be aligned up and down. When the control shaft 2 enters the cross locking piece 1, the object to be fixed is continuously lifted, at the moment, the control shaft 2 is rotated by the torsion of the shaft sleeve 3, and after the control shaft rotates by 90 degrees, the shaft sleeve 3 cannot be lifted continuously, and the control shaft 2 cannot rotate any more. At this time, the end 22 of the control shaft 2 rotates to enter the first limiting groove 9 of the cross locking piece 4, so that the object to be fixed cannot rise continuously, at this time, the object to be fixed is released slowly, and the object to be fixed can be found to be hung on the whole self-locking structure, so that the self-locking structure cannot be unlocked automatically even if the control shaft 2 is pushed upwards again, and the control shaft 2 needs to be rotated manually to unlock.

In the locking process, the linear motion of the cross locking piece 4 is transmitted to the shaft sleeve 3, and the shaft sleeve 3 can only move linearly and cannot rotate because the cross locking piece 4 is embedded in the shaft sleeve 3 in the motion process; the shaft sleeve 3 is sleeved with the control shaft 2, and the control shaft 2 is assembled on the fixed bearing 1, so that the control shaft can only rotate and cannot move linearly, and the linear motion of the whole mechanism is converted into rotary motion; when the control shaft 2 rotates 90 °, the end face of the shaft sleeve 3 contacts with the end face of the control shaft 2, so that the control shaft 2 can only rotate 90 °, the end 22 of the control shaft 2 is aligned with the locking position of the cross locking piece 4 through rotation, the whole mechanism reaches the movement limit, then the cross locking piece 4 is retracted by gravity or spring force, the cross locking piece 4 can only move linearly during retraction, and then contacts with the end 22 of the control shaft 2 and embeds it in the locking position, and the whole device is in a locking state.

In one implementation of the self-locking structure of the present invention, the control shaft 2 is further sleeved with a first spring 6, as shown in fig. 4 and 5.

Further, the self-locking structure of the present invention may further include two guide rods 5, as shown in fig. 4 and 5, one end of each guide rod 5 is fixed on the locking flange 25 of the cross locking piece 4, and the second spring 7 is sleeved on each guide rod 5. The two first springs 6 are identical in specification and are larger than the second springs 7 in elastic force.

The first spring 6 and the second spring 7 function to make the locking operation reversible, and realize openable and closable. The spring is continuously compressed in the locking process, when the cross locking piece 4 is retracted, the cross locking piece 4 is separated from the shaft sleeve 3, at the moment, the shaft sleeve 3 has a trend of reverse linear motion under the action of spring force, and the end 22 of the control shaft 2 is embedded in the cross locking piece 4 and cannot rotate at the moment, so that the shaft sleeve 3 can convert the trend of linear motion into self rotary motion, namely, the shaft sleeve 3 reversely rotates for 90 degrees relative to the control shaft 2 under the action of spring force to stop, the shaft sleeve 3 can automatically return to an initial state after each motion, and the cross locking piece 4 can only do linear motion in the whole motion process, so that the position of the cross locking piece 4 is always aligned with the shaft sleeve 3. In the process of repeated pushing, the cross locking piece 4 only moves linearly forwards and backwards, the shaft sleeve 3 firstly moves linearly, then rotates reversely by 90 degrees relative to the control shaft 2 to return to an initial state, namely, the control shaft 2 is responsible for converting the linear motion into the rotary motion, and the control shaft 2 continuously moves towards a clockwise direction or a counterclockwise direction in a manner similar to the step-by-step rotary motion of 90 degrees each time.

The self-locking structure of the invention can be used as an automatic device which can be reversely and repeatedly opened and closed when being matched with a spring

The device can be used as a hiding device in parts, and brings a larger utilization space for the appearance design of the product.

In a second aspect of the embodiment of the present invention, a ceiling apparatus with a self-locking structure is provided, including a ceiling 31 and a fixing tube 32 fixed on the indoor top, where the ceiling 31 and the fixing tube 32 are connected by a plurality of self-locking structures as described above, a cross locking piece 4 of the self-locking structure is fixed on an edge of the ceiling 31, and a bearing of the self-locking structure is fixed on the fixing tube 32, as shown in fig. 6 and fig. 7.

The fixing pipes 32 may be four square pipes, the suspended ceiling 31 may be an integrated circular suspended ceiling, and the cross locking piece 4 is fixed on the suspended ceiling 31; the cross locking pieces 4 can be uniformly distributed at the edge of the suspended ceiling, such as uniformly distributed in the circumference.

Firstly, fixing a square tube on the wall top of a room by using bolts, nuts and angle steel, also completing assembly forming of the integrated circular suspended ceiling, then fixing the bearing 1, the control shaft 2 and the shaft sleeve 3 of the self-locking structure on the square tube after assembly, fixing the cross locking piece 4 of the self-locking structure on the suspender of the integrated circular suspended ceiling, and finally lifting the integrated circular suspended ceiling. In the lifting process, the cross locking position of the cross locking piece 4 is ensured to be aligned with the direction of the control shaft 2 up and down, so that the control shaft 2 is assembled in the cross locking piece 4 after the integrated ceiling is lifted. In the process that integrated furred ceiling continuously rises, control shaft 2 can the autogiration 90 get into the locking position of cross latch piece 4, first limiting groove 9 promptly, and furred ceiling 31 can't continuously rise this moment, then slowly release furred ceiling 31, can discover that furred ceiling 31 has been locked on the side pipe.

In a third aspect of the embodiment of the present invention, there is provided a drawer with a self-locking structure, as shown in fig. 8, comprising a drawer outer frame 41, a drawer inner box 42 slidable within the drawer outer frame 41, the drawer outer frame 41 and the drawer inner box 42 being locked and connected by the self-locking structure having a first spring 6 and a second spring 7. As shown in fig. 9, the cross-shaped locking piece 4 of the self-locking structure is fixed to the bottom of the drawer inner case 41. As shown in fig. 10, the bearing 1 with the self-locking structure is fixed on the bottom end surface of the drawer outer frame 42, two guide rod holes 43 for sliding the guide rods 5 are further arranged on the bottom end surface of the drawer outer frame 42, and the guide rods 5 are inserted into the guide rod holes 43. The guide 5 and the guide hole 43 may be screw-coupled.

The use process is as follows:

initially, the drawer inner box 41 is in an open state, the cross lock catch piece 4 is assembled on the drawer inner box 41 and is positioned with the drawer outer frame 42 through the guide rod 5, two first springs 6 are arranged on the guide rod 5, the control shaft 2 and the shaft sleeve 3 are assembled on the bearing 1, the bearing 1 is fixed on the drawer outer frame 42, and a second spring 7 is arranged on the control shaft 2 between the bearing 1 and the shaft sleeve 3; pushing the drawer inner box 41, and moving the drawer inner box 41 along the guide rod 5 to keep the cross locking piece 4 aligned with the control shaft 2 front and back; after the end 22 of the control shaft 2 passes through the through groove 8 of the cross locking piece 4, the drawer inner box 41 is pushed continuously, the control shaft 2 rotates 90 degrees by the torsion of the shaft sleeve 3, the end 22 rotates to the direction aligned with the first limit groove 9 and is limited in the first limit groove 9, and at the moment, the drawer inner box 41 cannot be pushed continuously; the pushing force is released, the drawer inner box 41 returns by the elastic force of the first spring 6, then the control shaft 2 is locked with the cross locking piece 4, the drawer inner box 41 is in a locked state and does not move any more, the first spring 6 is in a compressed state, meanwhile, the shaft sleeve 3 reversely rotates by 90 degrees relative to the control shaft 2 due to the elastic force of the second spring 7, and the second spring 7 is in a natural state; pushing the drawer inner box 41 again, wherein the shaft sleeve 3 enters the cross position of the cross locking piece 4, namely the second limit groove 10, and the shaft sleeve 3 cannot rotate at the moment, so that force is converted into torsion force to be applied to the control shaft 22, the end 22 of the control shaft rotates 90 degrees again under the action of the torsion force, so that the end 22 is aligned with the direction of the through groove 8, and the drawer inner box 41 cannot be pushed continuously; the pushing force is released, the drawer inner box 41 is returned under the pressure of the first spring 6, and the control shaft 2 can freely withdraw from the cross locking piece 4 because the control shaft 2 is aligned with the through groove 8 at the moment, and the drawer inner box 41 is in an open state; the drawer can realize the circulation action of free locking-opening-locking by repeating the actions, and the control shaft 2 rotates by 90 degrees every time of operation.

Those skilled in the art will readily appreciate that the present invention is well adapted to carry out the present invention after considering the specification and the practice of the invention disclosed herein

Its embodiment. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the application

The claims of (c) point out.

It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. The self-locking structure is characterized by comprising a bearing with a bearing flange, a control shaft, a shaft sleeve and a cross locking piece with a locking flange, wherein the control shaft comprises a shaft rod fixedly connected with the bearing and an end part which is positioned at the front end of the shaft rod and is in a straight shape; the end part of the control shaft passes through the through groove of the cross locking piece and then can be rotated for 90 degrees to be locked in the first limit groove under the action of screw torque;

the shaft lever is provided with external threads, the shaft sleeve is provided with internal threads, the internal threads of the shaft sleeve are matched with the external threads of the control shaft, the shaft sleeve is connected to the control shaft through threads, and the rotation angle of the shaft sleeve and the control shaft is 90 degrees;

the cross lock fastener is equipped with the second spacing groove that is the ladder type with leading to the groove respectively in the logical groove both sides of the one side of axle sleeve towards, the axle sleeve is equipped with the block portion with leading to groove, second spacing groove looks adaptation.

2. The self-locking mechanism of claim 1, wherein the control shaft is sleeved with a first spring.

3. The self-locking structure according to claim 2, further comprising two guide rods, wherein one ends of the guide rods are fixed on the locking flange of the cross locking piece, and the second springs are sleeved on the guide rods.

4. The utility model provides a furred ceiling device with auto-lock structure, its characterized in that includes the furred ceiling, fixes at the fixed pipe at indoor top, furred ceiling and fixed pipe are connected through a plurality of auto-lock structure according to claim 1, a plurality of auto-lock structure's cross latch fitting all is fixed on the furred ceiling, a plurality of auto-lock structure's bearing all is fixed on the fixed pipe.

5. The suspended ceiling device with self-locking structure of claim 4, wherein a plurality of cross-shaped catches are uniformly distributed at the edge of the suspended ceiling.

6. The utility model provides a drawer with self-locking structure, its characterized in that includes the drawer frame, can slide in the drawer frame drawer inner box, drawer frame and drawer inner box pass through self-locking structure lock connection according to claim 3, self-locking structure's cross latch spare is fixed in the bottom of drawer inner box, self-locking structure's bearing is fixed on the bottom terminal surface of drawer frame, still is equipped with the gliding guide arm hole of confession guide arm on the bottom terminal surface of drawer frame, and the guide arm is pegged graft in the guide arm hole.