CN210239481U - Flat-open sliding door capable of automatically locking sliding door - Google Patents

Abstract

The utility model discloses a vertical hinged sliding door capable of automatically locking the sliding door, which comprises a door frame provided with a guide rail, a vertical hinged door movably connected with the door frame, a movable sliding door integrated in the vertical hinged door and a locking device, wherein the locking device comprises a lock main body and an unlocking main body; the lock main body is arranged at the top of the outer side surface of the side hung door, and the unlocking main body is arranged at the top of the door frame relative to the lock main body; a movable lock tongue is arranged on the lock body; one end part of the lock tongue is horizontally suspended at the opening of the guide rail of the vertical hinged door, so that the lock tongue limits the displacement of the sliding door; a raised blocking piece is arranged on the outer surface of the unlocking main body opposite to the lockset main body; when the side hung door is closed, the lock main body is connected with the unlocking main body through a quick connecting assembly; meanwhile, the suspended end part of the spring bolt abuts against the blocking piece, and the blocking piece is used for compressing the spring bolt and enabling the spring bolt to be far away from the guide rail opening of the vertical hinged door.

Description

Flat-open sliding door capable of automatically locking sliding door

Technical Field

The utility model relates to a door and window technical field, concretely relates to flat-open push-and-pull door of automatic locking push-and-pull door.

Background

In daily life, a sliding door and a sliding window are taken as a necessary decorative door and window for modern home decoration. With the development of the technology, people combine a sliding door with a side hung revolving door, and develop a novel side hung sliding door, also called a PT door or a PD door, etc.

Wherein, use flat-open push-and-pull door as the example, its door body structure mainly includes: the sliding door comprises a vertical hinged door and a sliding door movably integrated in the vertical hinged door. At present, the activity of push-and-pull door is realized to the gliding mode of guide rail more, is provided with the guide rail at the top of vertical hinged door promptly, and the top of push-and-pull door is provided with wheel components, and the push-and-pull door passes through wheel components mobilizable the hanging and establishes on the vertical hinged door. The guide rail of the flat-open sliding door comprises two parts: one part is the guide rail of setting at the vertical hinged door top, and this guide rail is used for the activity to accomodate the push-and-pull door. The other part is a guide rail arranged at the top of the door frame, and the guide rail is used for pushing, pulling and opening the sliding door.

When the vertical hinged door is closed, the guide rail on the vertical hinged door is mutually butted with the guide rail of the door frame, and the sliding door can be pulled out from the vertical hinged revolving door. When the push-and-pull door was accomodate in the vertical hinged door completely, the vertical hinged door could rotate and open.

And when daily use, the flat-open push-and-pull door rotates to open the back, if not fixed push-and-pull door, the push-and-pull door can be at the relative slip of external force down, then can follow the roll-off in the flat-open door when serious, can give people's a great deal of puzzlement that causes. Although the existing side-hung sliding door is provided with a mechanical locking device to fix the sliding door, the sliding door is mostly manual and has a complex structure.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical defect, the utility model provides an automatic flat-open push-and-pull door of locking push-and-pull door.

In order to solve the above problem, the utility model discloses realize according to following technical scheme:

the utility model relates to a vertical hinged sliding door capable of automatically locking the sliding door, which comprises a door frame provided with a guide rail, a vertical hinged door movably connected with the door frame, a movable sliding door integrated in the vertical hinged door and a locking device, wherein the locking device comprises a lock main body and an unlocking main body;

the lock main body is arranged at the top of the outer side surface of the side hung door, and the unlocking main body is arranged at the top of the door frame relative to the lock main body;

a movable lock tongue is arranged on the lock body; one end part of the lock tongue is horizontally suspended at the opening of the guide rail of the vertical hinged door, so that the lock tongue limits the displacement of the sliding door;

a raised blocking piece is arranged on the outer surface of the unlocking main body opposite to the lockset main body;

when the side hung door is closed, the lock main body is connected with the unlocking main body through a quick connecting assembly; meanwhile, the suspended end part of the spring bolt abuts against the blocking piece, and the blocking piece is used for compressing the spring bolt and enabling the spring bolt to be far away from the guide rail opening of the vertical hinged door.

Preferably, the vertical hinged door is connected with the door frame through a plurality of hinges; the outer surface of the frame of the door frame is provided with a plurality of T-shaped grooves which are longitudinally arranged;

and a plurality of bending parts are arranged on the door frame hinge piece fixedly connected with the door frame of the hinge, and the bending parts are clamped in the T-shaped groove.

Preferably, the lock body and the unlocking body are both pseudo-cylinders, and the opposite outer surfaces of the lock body and the unlocking body are mutually matched inclined surfaces;

specifically, the width of the lock main body is gradually reduced along the door closing direction of the side hung door; the width of the lock main body is gradually increased along the opening direction of the vertical hinged door.

Preferably, a guide rail through groove is formed in the lock main body, and the guide rail through groove is matched with a guide rail of the butt-joint vertical hinged door;

the suspended end part of the lock tongue extends into the through groove of the guide rail.

Preferably, a notch is formed in the side wall, far away from the lock tongue, of the guide rail through groove, and the notch is used for the blocking piece to penetrate through.

Preferably, the unlocking main body is also provided with a guide rail through groove, and the guide rail through groove and the blocking piece are arranged in parallel in sequence according to the door opening direction; when the vertical hinged door is closed on the door frame, the two guide rail through grooves of the unlocking main body and the lockset main body are mutually butted.

Preferably, the lock body is provided with an elastic unit connected with the bolt; when the vertical hinged door is opened, the elastic unit abuts against the lock tongue to reset.

Preferably, the lock body is provided with a guide groove for accommodating the lock bolt; a limiting post is arranged in the guide groove, and a strip-shaped hole sleeved on the limiting post is formed in the spring bolt; the elastic unit is a spring, one end of the spring abuts against the inner wall of the guide groove, and the other end of the spring abuts against the lock tongue.

Preferably, the quick connection assembly is an elastically resettable boss arranged on the unlocking main body, and the outer surface of the boss is an arc-shaped curved surface;

the lock body is provided with a groove for accommodating the bulge; the tool to lock main part that the block through bellying and recess realized with the quick joint of the main part of unblanking and part.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an automatic flat-open push-and-pull door of locking push-and-pull door, its mechanical mechanism through locking device can block the slip of the pulley of push-and-pull door automatically when the flat-open door is opened, avoids the push-and-pull door roll-off in the guide rail. When the vertical hinged door is closed, the lock body of the locking device can open the guide rail, so that the pulley of the sliding door can be pushed and pulled through the guide rail.

Drawings

The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of the whole structure of the sliding door of the present invention;

fig. 2 is a front view of the sliding door of the present invention;

fig. 3 is a partial enlarged view a of the sliding door of the present invention;

fig. 4 is a schematic structural view of the locking device of the present invention;

fig. 5 is a schematic plan view of the locking device of the present invention;

FIG. 6 is a perspective view of the lock body of the present invention;

FIG. 7 is a schematic view of the inner structure of the lock body of the present invention;

fig. 8 is a schematic structural view of the unlocking main body of the present invention;

fig. 9 is a sectional structure view of the sliding door and the installation diagram of the lock body;

fig. 10 is a schematic view of the hinge and the door frame according to the present invention;

fig. 11 is a schematic structural view of the hinge of the present invention;

fig. 12 is a sectional view of a frame of a door frame and an installation diagram of a hinge according to the present invention.

In the figure:

1-door frame, 11-door frame guide rail and 12-T-shaped groove;

2-a vertical hinged door;

3-sliding door, 31-roller component;

4-a lock body, 41-a lock tongue, 411-a strip-shaped hole, 42-a guide rail through groove, 43-a groove, 44-a guide groove and 441-a limiting column;

5-an unlocking main body, 51-a baffle plate and 52-a lug boss;

6-hinges, 61-door frame hinge sheets and 62-bending parts.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

The utility model discloses a locking device uses in flat-open push-and-pull door. Among the prior art, the flat-open push-and-pull door is with flat-open door 2 and the novel door and window structure of push-and-pull door 3 integration in an organic whole: the top of vertical hinged door 2 is provided with the door leaf guide rail, and roller assembly 31 with door leaf guide rail complex is installed at the top of push-and-pull door 3, and push-and-pull door 3 passes through roller assembly 31 mobilizable and is connected with vertical hinged door 2.

The side-hung sliding door mainly comprises a door frame 1 provided with a guide rail, a side-hung door 2 movably connected with the door frame 1, and a movable sliding door 3 integrated in the side-hung door 2. Further, a door frame guide rail 11 is installed on the top (i.e. the upper frame) of the door frame 1, and the door frame guide rail 11 is matched with the door leaf guide rail of the vertical hinged door 2. When the vertical hinged door 2 is closed, the door leaf guide rail is in butt joint with the door frame guide rail 11, and the sliding door 3 can move on the two sections of guide rails at will. When the vertical hinged door 2 needs to be opened, the sliding door 3 needs to be pushed into the vertical hinged door 2 completely, and then the vertical hinged door 2 can be opened.

The door guide and the door frame guide 11 are substantially identical guides, except for the different mounting carriers. For convenience of description, the door leaf guide rail and the door frame guide rail 11 below are collectively illustrated by guide rails, which do not affect the technical solution of the present invention.

The flat-open sliding door is mostly formed by assembling aluminum alloy aluminum profile parts, and the specific structure of the flat-open sliding door is known and implemented by the technical personnel in the field, so that the description is not excessive.

As shown in fig. 1 to 9, a preferred structure of the locking device according to the present invention is described.

As shown in fig. 3 and 4, the locking device includes a lock body 4 and an unlock body 5 which are independent of each other. The lock body 4 is arranged at the top of the outer side face of the vertical hinged door 2, and when the vertical hinged door 2 is opened, the mechanical mechanism in the lock body 4 automatically locks the sliding door 3 in the vertical hinged door 2 to limit the displacement of the sliding door. And the main part 5 of unblanking sets up the top at door frame 1 for tool to lock main part 4, and when vertical hinged door 2 was closed, the main part 5 of unblanking was used for opening 4 mechanical mechanism of tool to lock main part for push-and-pull that push-and-pull door 3 can be free.

As shown in fig. 4 and 5, the lock body 4 and the unlock body 5 are shaped like cylinders. And when vertical hinged door 2 closed, the relative surface of tool to lock main part 4 and unblank main part 5 is the inclined plane of mutually supporting. Specifically, the width of the lock body 4 gradually decreases along the door closing direction of the vertical hinged door 2; the width of the lock body 4 is gradually increased along the opening direction of the vertical hinged door 2. In view of the rotating door opening mode of the vertical hinged door 2, the design of the inclined plane is convenient for the mechanical cooperation of the lock main body 4 and the unlocking main body 5.

The vertical hinged door 2 comprises a front face, a back face, upper and lower end faces, an inner side face and an outer side face. The inner side face is an installation face of the hinge 6, the front face of the vertical hinged door 2 is a door face facing outdoors, and the back face of the vertical hinged door 2 is a door face facing indoors. In the present embodiment, the guide rail of the swing door 2 is provided on the front face of the swing door 2.

As shown in fig. 4, a through groove 42 matched with the guide rail of the vertical hinged door 2 is formed in the lock main body 4, and the through groove 42 is disposed adjacent to the front surface of the vertical hinged door 2. Specifically, after the lock body 4 is installed, the through groove 42 is communicated with the guide rail of the vertical hinged door 2. The arrangement of the through groove 42 is that the whole guide rail is avoided to be vacant for better connecting the guide rail of the vertical hinged door 2 and the guide rail of the door frame 1, and the sliding door 3 is clamped in the displacement. The shape of the conducting through-groove 42 is shown in the figure, and is not described excessively for this purpose.

As shown in fig. 6 and 9, a movable latch tongue 41 is arranged on the lock main body 4, and the latch tongue 41 is movably connected with the lock main body 4 in a limiting manner. Specifically, one end of the latch 41 is horizontally suspended in the through slot 42, i.e., is displaced at the opening of the guide rail of the vertical hinged door 2. The operation principle of the latch tongue 41 is as follows: when the vertical hinged door 2 is opened, the sliding door 3 is positioned in the vertical hinged door 2, the lock tongue 41 is convexly arranged in the through groove 42, and the roller of the sliding door 3 is limited by the lock tongue 41 to limit the sliding door 3.

As shown in fig. 7, the lock body 4 is provided with a guide groove 44 having a horizontal opening, and the opening of the guide groove 44 faces the communicating through groove 42. An elastic unit is provided in the guide groove 44. The locking tongue 41 is in limit connection with the guide groove 44. A limiting column 441 is arranged in the guide groove 44, the bolt 41 is cuboid in outline shape, and a strip-shaped hole 411 is formed in the bolt 41. The bar-shaped hole 411 is sleeved on the limiting post 441, the elastic unit is a spring, one end of the spring abuts against the inner wall of the guide groove 44, and the other end of the spring abuts against the lock tongue 41. Specifically, one side wall of the guide groove 44 is detachable for attaching and detaching the latch tongue 41 and the elastic unit.

Under the mechanical structure of the limiting column 441, the strip-shaped hole 411 and the elastic unit, the locking bolt 41 can freely penetrate through the through-groove 42 in the horizontal direction. Under external force, the lock tongue 41 is pressed into the guide groove 44, the lock tongue 41 is far away from the guide rail opening of the vertical hinged door 2, and the sliding door 3 can be freely pulled out and pushed in from the vertical hinged door 2. After external force is released, under the tension of the elastic unit and the limiting of the limiting column 441, the lock tongue 41 resets to the original position, and the sliding door 3 can be limited in the vertical hinged door 2.

Preferably, the latch tongue 41 is made of rigid plastic. The latch tongue 41 made of plastic is not easy to deform in quality, has low requirement on an elastic unit, and is convenient to compress into the guide groove 44 and reset.

As shown in fig. 4, the unlocking body 5 is designed to automatically apply an external force to the locking tongue 41 by a mechanical structure to press the locking tongue 41 into the guide groove 44 when the vertical hinged door 2 is closed. Specifically, a raised blocking piece 51 is vertically arranged on the outer surface of the unlocking main body 5, and the blocking piece 51 and the unlocking main body 5 are integrally arranged.

As shown in fig. 8, the unlocking body 5 is also provided with a through groove 42, and the through groove 42 is in matching butt joint with the guide rail on the door frame 1. When vertical hinged door 2 closed, unblank the logical groove 42 that switches on of main part 5 and the logical groove 42 matching butt joint that switches on of tool to lock main part 4. The communicating through groove 42 of the unlocking main body 5 and the catch 51 are arranged in parallel in the door closing direction.

The working principle of the unlocking main body and the locking assembly is as follows:

in the closing process of the vertical hinged door 2, the lock main body on the vertical hinged door 2 gradually enters the door frame 1, and then the suspended end part of the spring bolt on the lock main body can be gradually close to the blocking piece until the spring bolt abuts against the blocking piece. Because the blocking piece is fixed, the continuous entering of the lock tongue enables the lock tongue to enter the guide groove under the compression of external force. When the vertical hinged door 2 is completely closed, the spring bolt is completely compressed, the spring bolt leaves from the guide rail through groove, the guide rail of the door frame 1 is switched on, and the sliding door 3 can be pulled at will.

Since the elastic unit has a certain tension, the latch tongue 41 is not pressed into the guide groove 44 if the external force for closing the door is removed. For this reason, in order to avoid the separation of tool to lock main part 4 and the main part 5 of unblanking, when vertical hinged door 2 was closed, tool to lock main part 4 was connected through a quick connect assembly with the main part 5 of unblanking, and this quick connect assembly makes things convenient for tool to lock main part 4's quick connect and quick separation. For example, the magnetic connection scheme can be adopted, a strong magnet is arranged on the unlocking main body 5, and the locking main body 4 can be made of ironwork and can be magnetically adsorbed.

Preferably, as shown in fig. 8, the quick-connecting assembly is a resiliently-returning protrusion 52 provided on the unlocking main body 5, the protrusion 52 is made of hard plastic, and the outer surface of the protrusion 52 is an arc-shaped curved surface. The outer surface of the unlocking main body 5 is provided with a horizontal concave mounting groove for accommodating the convex part 52. Specifically, the back of the protruding portion 52 is provided with a plurality of guiding units, and the guiding units penetrate through the bottom of the mounting groove. On the other hand, the protruding portion 52 is connected to the unlocking main body 5 in a limited manner through a bolt, the protruding portion 52 can move back and forth along the axis of the bolt within a certain range, a strong spring is further arranged in the mounting groove, one end of the strong spring abuts against the inner wall of the mounting groove, and the other end of the strong spring abuts against the back face of the protruding portion 52.

As shown in fig. 5, the lock body 4 is provided with a groove 43 for accommodating the protrusion 52, and the inside of the groove 43 is prevented from being an arc-shaped curved surface; the quick snap connection and quick release of the lock body 4 and the unlocking body 5 is achieved by the engagement of the protrusions 52 with the grooves 43.

With this design, the outer surface of the protrusion 52 is an arc-shaped curved surface, which facilitates the engagement and disengagement of the protrusion 52 with the groove 43. The projection 52 enters the groove 43 along the outer surface of the lock groove 43 and the engagement of the projection 52 with the groove 43 is firm under sufficient tension of the strong spring. The lock body 4 and the unlocking unit are not easily separated.

On the other hand, in order to avoid the over-position of the vertical hinged door 2 when being closed, the guide rail of the vertical hinged door 2 is not butted with the guide rail of the door frame 1 due to the over-position, and the connection of the hinge 6 is easily damaged. For this purpose, a raised blocking plate is arranged on the side wall of the lock body 4; the blocking plate and the locking tongue 41 are arranged in parallel in sequence in the closing direction, that is, the blocking plate is arranged close to the back of the vertical hinged door 2. When vertical hinged door 2 closed, the lateral wall of the body 5 is unblanked in order to realize preventing that vertical hinged door 2 from crossing the position to the barrier plate conflict.

Specifically, the lock main body 4 and the unlocking main body 5 are both metal sections, such as aluminum alloy and the like, and have the advantages of good strength, wear resistance, long service life and difficulty in damage. A plurality of mounting holes are formed in the lockset main body 4 and the unlocking main body 5, the lockset main body 4 is fixedly connected with the vertical hinged door 2 through bolts, and the unlocking main body 5 is fixedly connected to an aluminum profile of the door frame 1 through bolts.

Preferably, the back of the lock body opposite to the outer surface is provided with a concave insertion groove, and the insertion groove is arranged along the outer contour of the lock body. The unlocking main body is also provided with a plug-in groove.

The locking device can also be applied to a casement and sliding window, and the structural principle of the locking device is the same as that of the sliding window.

Other structures of the vertical hinged sliding door for automatically locking the sliding door in the embodiment are shown in the prior art.

Example 2

The structure of the sliding door of the present embodiment 2 is the same as that of embodiment 1, except that: this embodiment 2 provides a securely attached hinge 6.

As shown in fig. 11, the hinge 6 has a top-bottom leaf structure, and includes a door frame leaf 61 and a door leaf. The door frame hinge sheet 61 is a lower hinge 6 fixedly connected to the frame of the door frame 1. The door leaf hinge sheet is an upper hinge 6 fixedly connected with the vertical hinged door. The door frame hinge sheet 61 and the door leaf hinge sheet are both fixedly connected with the door frame 1 and the horizontal opening door through screws, and a plurality of through holes are formed in the door frame hinge sheet 61 and the door leaf hinge sheet.

As shown in fig. 10 and 12, a set of longitudinal T-shaped grooves is formed on the frame of the door frame 1, and the two T-shaped grooves are spaced at a certain distance. The T-shaped groove extends from the top of the frame to the bottom of the frame.

The surface of the door frame hinge sheet 61, which is in contact with the door frame 1, is provided with a bending part 62 protruding outwards, the cross section of the bending part 62 is L-shaped, and the bending part 62 is arranged in the T-shaped groove, so that the hinge 6 can be more stably clamped on the door frame 1.

The applicant finds that the weight of the side-hung sliding door is far heavier than that of the existing side-hung door, and the existing hinge connection mode cannot meet the requirement for installing the side-hung sliding door. After the hinge is used for a period of time, the hinge is easy to loosen or shift due to heavy load and easy to loosen or shift. The flat-open sliding door can incline downwards, the flat-open door is difficult to rotate, the connection between the guide rails is uneven, and the sliding door is easy to clamp. In severe cases, the guide rail of the vertical hinged door is not butted with the guide rail on the door frame, and the vertical hinged door cannot be pushed and pulled. Therefore, the existing hinge connection scheme cannot meet the problems.

Therefore, the utility model discloses a hinge and door frame structure of new design provide more stable bearing capacity for the hinge, through the wall body in the T type groove of the card of bending on the hinge. The hinge can load bigger weight, very big flat-open push-and-pull door of satisfying, simple structure, reasonable in design. And then guarantee the level and smooth butt joint between the track of flat-open push-and-pull door.

And, be provided with T type groove on the door frame, it has certain location installation function. The existing hinge needs to be firstly punched after lineation is carried out on a door frame, and then the hinge can be installed. Whole process is troublesome, and the rule is artifical, and the reference object is different, if the hole is inaccurate then can incline after making the door installation easily, and the straightness that hangs down is not good. And the utility model discloses a door frame and hinge then fine solution this problem. During installation, the bending part of the hinge is clamped on the T-shaped groove, a point is directly marked and punched after the horizontal height is determined, and then the hinge is fixed by adopting modes such as screw connection and the like.

Preferably, the opening of the T-shaped groove is provided with a lug extending into the groove, and the lug abuts against the bending part of the hinge.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.

Claims (9)

1. The utility model provides an automatic flat-open push-and-pull door of locking push-and-pull door, is including the door frame that is provided with the guide rail, with door frame swing joint's vertical hinged door and mobilizable integrated push-and-pull door in the vertical hinged door, its characterized in that: the lock also comprises a locking device, wherein the locking device comprises a lock main body and an unlocking main body;

the lock main body is arranged at the top of the outer side surface of the side hung door, and the unlocking main body is arranged at the top of the door frame relative to the lock main body;

a movable lock tongue is arranged on the lock body; one end part of the lock tongue is horizontally suspended at the opening of the guide rail of the vertical hinged door, so that the lock tongue limits the displacement of the sliding door;

a raised blocking piece is arranged on the outer surface of the unlocking main body opposite to the lockset main body;

when the side hung door is closed, the lock main body is connected with the unlocking main body through a quick connecting assembly; meanwhile, the suspended end part of the spring bolt abuts against the blocking piece, and the blocking piece is used for compressing the spring bolt and enabling the spring bolt to be far away from the guide rail opening of the vertical hinged door.

2. A sliding door according to claim 1, characterised in that: the vertical hinged door is connected with the door frame through a plurality of hinges;

the outer surface of the frame of the door frame is provided with a plurality of T-shaped grooves which are longitudinally arranged;

and a plurality of bending parts are arranged on the door frame hinge piece fixedly connected with the door frame of the hinge, and the bending parts are clamped in the T-shaped groove.

3. A sliding door according to claim 1, characterised in that:

the lock body and the unlocking body are both pseudo-cylinders, and the opposite outer surfaces of the lock body and the unlocking body are mutually matched inclined surfaces;

specifically, the width of the lock main body is gradually reduced along the door closing direction of the side hung door; the width of the lock main body is gradually increased along the opening direction of the vertical hinged door.

4. A sliding door according to claim 3, characterised in that:

a guide rail through groove is formed in the lock main body and is matched with and butted with a guide rail of the vertical hinged door;

the suspended end part of the lock tongue extends into the through groove of the guide rail.

5. A sliding door according to claim 4, characterised in that:

the side wall of the guide rail through groove, which is far away from the lock tongue, is provided with a notch, and the notch is used for the separation blade to penetrate through.

6. A sliding door according to claim 4, characterised in that:

the unlocking main body is also provided with a guide rail through groove, and the guide rail through groove and the blocking piece are arranged in parallel in sequence according to the door opening direction;

when the vertical hinged door is closed on the door frame, the two guide rail through grooves of the unlocking main body and the lockset main body are mutually butted.

7. A sliding door according to claim 1, characterised in that:

the lock body is provided with an elastic unit connected with the lock tongue; when the vertical hinged door is opened, the elastic unit abuts against the lock tongue to reset.

8. A sliding door according to claim 7, characterised in that:

the lock body is provided with a guide groove for accommodating the lock tongue;

a limiting post is arranged in the guide groove, and a strip-shaped hole sleeved on the limiting post is formed in the spring bolt;

the elastic unit is a spring, one end of the spring abuts against the inner wall of the guide groove, and the other end of the spring abuts against the lock tongue.

9. A sliding door according to claim 1, characterised in that:

the quick connecting assembly is an elastically resettable boss arranged on the unlocking main body, and the outer surface of the boss is an arc-shaped curved surface;

the lock body is provided with a groove for accommodating the bulge; the tool to lock main part that the block through bellying and recess realized with the quick joint of the main part of unblanking and part.

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