CN212802886U

CN212802886U - Door lock and auxiliary door lock

Info

Publication number: CN212802886U
Application number: CN202021157791.6U
Authority: CN
Inventors: 帅爱华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-03-26
Anticipated expiration: 2030-06-19

Abstract

The application provides a door lock, which comprises a shell, a telescopic component and a safety device, wherein the telescopic component and the safety device are arranged in the shell, the telescopic component comprises an upper pull rod hook, a lower pull rod hook, a shifting wheel and a third spring, when the shifting wheel rotates along a first direction, the upper pull rod hook and the lower pull rod hook contract towards the shell, when the shifting wheel is released, the third spring drives the upper pull rod hook and the lower pull rod hook to extend out towards the shell, the safety device comprises a safety rod and a touch wheel component, a first spring is arranged between the touch wheel component and the safety rod, a second spring is arranged between the safety rod and the shell, a clamping groove is arranged on the upper pull rod hook or the lower pull rod hook, when the touch wheel component compresses towards the shell, the first spring pushes the safety rod to move inwards to be clamped into the clamping groove, the telescopic component is locked, when the touch wheel component is released, the second spring pushes the safety rod outwards to be separated from the clamping groove, the telescopic component, when the upper pull rod hook and the lower pull rod hook are contracted, the auxiliary lock door can be opened, and when the auxiliary lock door is extended outwards, the auxiliary lock door is locked.

Description

Door lock and auxiliary door lock

Technical Field

The utility model belongs to the technical field of door and window technique and specifically relates to a lock and vice lock door is related to.

Background

At present, a common split door in the market consists of a door frame, two doors, a main lockset, a top lock, a ground lock and a bolt hole arranged on the door frame; the two doors are structurally characterized in that a main lockset is arranged on one door, the main lockset is called a main lock door hereinafter, and a main lockset hole, a top lock mounting hole and a bottom lock mounting hole which correspond to the main lockset are arranged on the other door, the main lockset hole, the top lock mounting hole and the bottom lock mounting hole are called an auxiliary lock door hereinafter; the top lock and the ground lock are respectively arranged in the top lock mounting hole and the ground lock mounting hole on the auxiliary lock door, the top lock and the ground lock are bolt type, and the auxiliary lock door can be locked only by manually controlling the bolts of the top lock and the ground lock up and down respectively. When the split door needs to be closed, the operation sequence is that the spring bolts of the ground lock and the top lock of the auxiliary lock door are aligned to the spring bolt holes on the door frame, then the switch of the top lock and the ground lock is shifted to enable the spring bolts to be embedded into the spring bolt holes, so that the auxiliary lock door is fixed on the door frame, and finally the main lock door is closed to achieve the effect of closing.

The utility model with the current patent number of CN105909082B discloses a bolt device applied to an auxiliary lock door, which comprises an auxiliary lock device, a bolt component I, a bolt component II and a bolt inserting hole arranged on a door frame; the auxiliary locking device is respectively connected with the bolt component I and the bolt component II; can control bolt subassembly I through the revolving door handle, bolt subassembly II is connected with the bolt hole, thereby realize unblanking and the effect of closing the lock, in order to prevent that vice lock door is opened under the condition that main lock door does not open, still be provided with insurance subassembly, when double-open door is locked, insurance subassembly prevents bolt subassembly I, the motion of bolt subassembly II, the door handle is nonrotatable this moment, vice lock door can't be opened, after main lock door is opened, insurance subassembly unblock, bolt subassembly I, bolt subassembly II is movable, vice lock door is opened to rotatable door handle, but insurance subassembly needs to be triggered by main lock door touching, need trompil separately on vice lock door and make insurance subassembly expose and come out with main lock door contact, this structure is more complicated, the structure is complicated and leads to the fault rate to rise to some.

Therefore, how to solve the problem of complex structure caused by the fact that the auxiliary locking device does not have a self-locking function and a safety component for limiting the movement of the bolt component needs to be arranged in the door body in the prior art becomes a technical problem which needs to be solved urgently by a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lock and vice lock door to solve among the prior art because vice locking device does not possess self-locking function, need set up the problem that the structure is complicated that the insurance subassembly of restriction bolt subassembly motion leads to in the door body.

The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model discloses a first aspect provides a door lock, include:

a housing;

the telescopic component is arranged in the shell and comprises an upper pull rod hook, a lower pull rod hook and a shifting wheel, the top end of the upper pull rod hook and the bottom end of the lower pull rod hook respectively penetrate out of the shell upwards and downwards to be connected with a top-to-bottom lock in the door body, the upper pull rod hook and the lower pull rod hook are both connected with the shell in a sliding mode along the vertical direction, the bottom end of the upper pull rod hook and the top end of the lower pull rod hook are respectively connected with the shifting wheel in a transmission mode, the shifting wheel is connected with the shell in a rotating mode, the rotating axis of the shifting wheel is along the front-to-back direction of the shell, a third spring is arranged between the upper pull rod hook and the shell, when the shifting wheel rotates along the first direction, the upper pull rod hook and the lower pull rod hook shrink towards the inside of the shell, the third spring is in a tension storage state, the shifting wheel is in an unlocking state, the third spring restores to deform to drive the upper pull rod hook and the lower pull rod hook to extend towards the outside, at this time, the locking state is achieved;

the safety device arranged along the left and right directions of the shell comprises a safety rod and a bumper wheel assembly, one end of the bumper wheel assembly is positioned at the outer side of one side, close to the main lock door, of the shell, the other end of the bumper wheel assembly is positioned in the shell, the safety rod is positioned between the bumper wheel assembly and the telescopic assembly, a first spring is arranged between the bumper wheel assembly and the safety rod, a second spring is arranged between the safety rod and the shell, a clamping groove is arranged at the position, corresponding to the safety rod, of the upper pull rod hook or the lower pull rod hook, when the bumper wheel assembly is compressed towards the shell, the safety rod is pushed to move inwards through the first spring to be clamped into the clamping groove, the telescopic assembly is locked, the second spring is compressed to store force, when the bumper wheel assembly is released, the second spring restores to deform and pushes the safety rod outwards, and the safety rod is separated from the clamping groove, the telescoping assembly is unlocked.

Preferably, the thumb wheel comprises a rotating part with a cylindrical middle part and a rod part which is positioned outside the rotating part and used for driving the upper pull rod hook and the lower pull rod hook to move.

Preferably, the rotating portion is provided with a rotation stopping hole in the middle for connecting with a rotating shaft of the door handle, the rotating portion is rotatably connected with the shell, the bottom end of the upper pull rod hook and the top end of the lower pull rod hook are both provided with a blocking piece, and the extending end of the rod portion is connected with the blocking piece in an abutting mode.

Preferably, the upper pull rod hook and the lower pull rod hook are both provided with at least two elongated sliding grooves extending in the vertical direction, and the shell is provided with a guide rod at a position corresponding to the sliding grooves.

Preferably, the touch wheel assembly comprises a sliding rod and a touch wheel which are slidably connected with the shell, the sliding rod extends out of the shell at one side close to the main lock door, the touch wheel is rotatably connected with the extending end of the sliding rod, and the rotation axis is along the up-down direction.

Preferably, the slide bar is located one end is provided with first baffle in the casing, the bumper bar is close to slide bar one end is provided with a spring mounting section of thick bamboo, a spring mounting section of thick bamboo is close to flexible subassembly one end with casing is along left right direction sliding connection, first spring setting is in a spring mounting section of thick bamboo with between the first baffle.

Preferably, a second baffle plate is arranged on the shell at one end, close to the telescopic assembly, of the safety rod, the safety rod penetrates through the second baffle plate, and the second spring is arranged between the spring mounting cylinder and the second baffle plate.

Preferably, the casing includes the lock body and sets up and is being close to the mounting panel that is used for and vice lock door body coupling of main lock door one side, go up the pull rod hook top and be less than the mounting panel top, lower pull rod hook bottom is higher than the mounting panel bottom, the mounting panel top all is provided with along controlling the direction and runs through with the bottom the mounting hole of mounting panel.

Preferably, go up the pull rod hook top and reach the distance between the mounting panel top is 3 ~ 5 centimetres, the pull rod hook bottom reaches the distance between the mounting panel bottom is 3 ~ 5 centimetres.

A second aspect of the present invention provides an auxiliary door lock, including any one of the above door locks.

The utility model discloses a door lock that first aspect provided, its beneficial effect is:

the utility model provides a door lock, which comprises a shell, a telescopic component arranged in the shell and a safety device arranged along the left and right direction of the shell, wherein the telescopic component comprises an upper pull rod hook, a lower pull rod hook and a shifting wheel, the top end of the upper pull rod hook and the bottom end of the lower pull rod hook respectively extend upwards and downwards out of the shell to be connected with a heaven and earth lock in the door body, the upper pull rod hook and the lower pull rod hook are both connected with the shell in a sliding way along the up-down direction, the bottom end of the upper pull rod hook and the top end of the lower pull rod hook are respectively connected with the shifting wheel in a transmission way, the shifting wheel is rotationally connected with the shell, the rotation axis is along the front and back direction of the shell, a third spring is arranged between the upper pull rod hook and the shell and between the lower pull rod hook and the shell, when a door handle drives the shifting wheel to rotate along the first direction, the upper pull rod hook and the lower pull rod hook, the third spring restores the deformation, pulls the upper pull rod hook and the lower pull rod hook to extend outwards to the shell, and is in a locking state at the moment, the safety device comprises a safety rod and a touch wheel assembly, one end of the touch wheel assembly is positioned at the outer side of one side of the shell, which is close to the main lock door, the other end of the touch wheel assembly is positioned in the shell, the safety rod is positioned between the touch wheel assembly and the telescopic assembly, a first spring is arranged between the touch wheel assembly and the safety rod, a second spring is arranged between the safety rod and the shell, a clamping groove is arranged at the position, corresponding to the safety rod, of the upper pull rod hook or the lower pull rod hook, when the touch wheel assembly is compressed inwards to the shell, the safety rod is pushed inwards to move and be clamped into the clamping groove through the first spring, the telescopic assembly is locked, the second spring compresses to store force, when the touch wheel assembly is released, the second spring restores the deformation to push the safety, under the condition that the main lock door was not closed, the bumping wheel subassembly was in the position of unblock, and the door handle is rotatable, and under the condition that the main lock door was closed, the bumping wheel subassembly moved to the internal portion of door, and the bumper bar stretches into in the draw-in groove, and the bumping wheel subassembly was in the locking position this moment, and flexible subassembly can't stretch out and draw back, and the lock self that this application provided has self-locking function, need not to set up safety device in the internal additional of door, has simplified the structure.

The utility model discloses a pair of lock door that second aspect provided, its beneficial effect is:

the utility model discloses a pair of lock door that second aspect provided, including above the lock, pair lock door and main lock door be two designs of opening the door, install foretell lock in this pair lock door, under the condition that main lock door was not closed, the bump wheel subassembly is in the position of unblock, the door handle is rotatable, under the condition that main lock door was closed, the bump wheel subassembly removes to a internal portion, the bumper bar stretches into in the draw-in groove, the bump wheel subassembly is in the locking position this moment, flexible subassembly is unable flexible, after the above-mentioned lock of vice lock door installation that this application provided, need not to set up safeties in the door body separately, the structure has been simplified.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a view illustrating a structure of a door lock according to an embodiment of the present invention;

fig. 2 is a right side view of fig. 1 illustrating an embodiment of the present invention.

In the figure: 1. a housing; 101. a lock body; 102. mounting a plate; 103. mounting holes; 2. an upper pull rod hook; 3. a lower draw bar hook; 4. a thumb wheel; 401. a rotating part; 402. a rod portion; 403. a rotation stopping hole; 5. a bumper; 6. a first spring; 7. a second spring; 8. a card slot; 9. a third spring; 10. a baffle plate; 11. a chute; 12. a guide bar; 13. a slide bar; 14. bumping the wheel; 15. a first baffle plate; 16. a spring mounting cylinder; 17. a second baffle; 18. a rotation stopping rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1, the left-right direction along the paper surface is the left-right direction in the text, the up-down direction along the paper surface is the up-down direction in the text, and the direction perpendicular to the paper surface is the front-back direction.

Referring to fig. 1-2, a door lock provided by a first aspect of the present invention comprises a housing 1, a retractable assembly disposed in the housing 1, and a safety device disposed along the left and right direction of the housing 1, wherein the retractable assembly comprises an upper rod hook 2, a lower rod hook 3, and a thumb wheel 4, the top end of the upper rod hook 2 and the bottom end of the lower rod hook 3 respectively extend upward and downward out of the housing 1 for being locked with a heaven and earth in the door body, the upper rod hook 2 and the lower rod hook 3 are both slidably connected with the housing 1 in the up-down direction, the bottom end of the upper rod hook 2 and the top end of the lower rod hook 3 are respectively connected with the thumb wheel 4 in a transmission manner, the thumb wheel 4 is rotatably connected with the housing 1, the rotation axis is along the front-back direction of the housing 1, a third spring 9 is disposed between the top of the upper rod hook 2 and the top of the housing 1, the bottom of the lower rod hook 3 and the bottom of the housing 1, when the door handle rotates the thumb wheel 4 in the first direction, the upper pull rod hook 2 and the lower pull rod hook 3 are retracted towards the inside of the shell 1, the third spring 9 is stretched to accumulate force, the unlocking state is realized at the moment, the door handle is released at the moment, the third spring 9 recovers deformation, the upper pull rod hook 2 and the lower pull rod hook 3 are pulled to extend towards the outside of the shell 1, the locking state is realized at the moment, the safety device comprises a safety rod 5 and a touch wheel assembly, one end of the touch wheel assembly is positioned at the outer side of one side of the shell 1 close to the main lock door, the other end of the touch wheel assembly is positioned in the shell 1, the safety rod 5 is positioned between the touch wheel assembly and the telescopic assembly, a first spring 6 is arranged between the touch wheel assembly and the safety rod 5, a second spring 7 is arranged between the safety rod 5 and the shell 1, a clamping groove 8 is arranged at the position of the lower pull rod hook 3 corresponding to the safety rod 5, when the touch wheel assembly is compressed towards, second spring 7 compression holds power, when the bumper beam subassembly is released, second spring 7 resumes deformation and outwards releases bumper 5, bumper 5 breaks away from with draw-in groove 8, flexible subassembly unblock, in the in-service use, this lock is installed in vice lock door internal, under the condition that main lock door was not closed, the bumper beam subassembly is in the position of unblock, the door handle is rotatable, under the condition that main lock door was closed, the bumper beam subassembly is to the internal portion of door removal, bumper 5 stretches into in the draw-in groove 8, the bumper beam subassembly is in the locking position this moment, flexible subassembly is unable flexible, the lock self that this application provided has self-locking function, need not to set up safeties in the door body separately, the structure has been simplified.

In addition, the safety device is provided with a first spring 6 and a second spring 7, when the door is opened and closed abnormally, the collision wheel component can be ensured not to be damaged, for example, when the auxiliary lock door is closed and the telescopic component is still in a contracted unlocking position, the safety rod 5 is staggered with the clamping groove 8 on the lower pull rod hook 3, if the main lock door is closed at the moment, the collision wheel component is pushed inwards, at the moment, the first spring 6 drives the safety rod 5 to abut against the lower pull rod hook 3, the safety rod 5 cannot enter the clamping groove 8, the first spring 6 can be compressed continuously until the collision wheel component is completely positioned in the shell 1, when the telescopic component returns to a locking state, the safety rod 5 is aligned with the clamping groove 8, the first spring 6 pushes the safety rod 5 into the clamping groove 8, the second spring 7 compresses the stored force, when the main lock door is opened, the wheel component collision is released and deformed, the second spring 7 recovers to push the safety rod 5 out of the clamping groove 8, if bumping wheel subassembly and bumper 5 structure as an organic whole, only set up a spring between and the casing 1, close when vice lock door, when flexible subassembly is still in the locking position of shrink, if close main lock door this moment, bumper 5 top is on lower link hook 3, and bumping wheel subassembly can not remove in the normal direction casing, can lead to main lock door and bumping wheel subassembly to damage.

In implementation, the dial wheel 4 may include a middle cylindrical rotating portion 401 and a rod portion 402 located outside the rotating portion 401 and used for driving the upper pull rod hook 2 and the lower pull rod hook 3 to move, a circular groove may be disposed on the housing 1, the cylindrical rotating portion 401 is located in the circular groove and rotatably connected to the housing 1, a rotation stop hole 403 may be disposed in the middle of the rotating portion 401, the rotation stop hole 403 may be a square through hole for inserting a square rotating shaft of a door handle, the rod portion 402 may be tangentially disposed to the cylindrical rotating portion 401, one end is fixedly connected to the rotating portion 401, the other end extends outward in an opposite direction, a blocking piece 10 is disposed at the bottom of the upper pull rod hook 2 and the top of the lower pull rod hook 3, the two rod portions 402 are respectively connected to one blocking piece 10, when the dial wheel 4 rotates counterclockwise, the upper pull rod hook 2 is driven to move downward, the lower pull rod hook 3 is driven to move upward, the unlocking is realized, at the moment, the third spring 9 is stretched to accumulate force, after the door handle is loosened, the third spring 9 recovers deformation, the third spring 9 connected with the lower pull rod hook 3 drives the lower pull rod hook 3 to move downwards, the third spring 9 connected with the upper pull rod hook 2 drives the upper pull rod hook 2 to move upwards and return to the locking position, referring to fig. 1, the rod part 402 positioned above stretches out to the left side to be abutted to the baffle plate 10 of the upper pull rod hook 2, the rod part 402 positioned below stretches out to the right side to be abutted to the baffle plate 10 of the lower pull rod hook 3, the rotation stopping rod 18 is further arranged on the shell 1 at the tail end of the rod part 402 above and the tail end of the rod part 402 below, when the third spring 9 pulls the upper pull rod hook 2 and the lower pull rod hook 3 to stretch outwards, the dial wheel 4 rotates clockwise, and stops rotating when the rotation stopping rod 18 rotates, and the door handle is prevented.

In order to realize pull-up rod hook 2, sliding connection between lower link hook 3 and the casing 1, can all set up two at least rectangular shape spouts 11 on pull-up rod hook 2 and lower link hook 3, spout 11 extends along upper and lower direction, spout 11 runs through pull-up rod hook 2 or lower link hook 3, the position that corresponds with rectangular shape spout 11 on casing 1 is provided with guide bar 12, guide bar 12 passes spout 11, it is rotatory in order to prevent to go up pull-up rod hook 2 or lower link hook 3 to set up two at least rectangular shape spouts 11.

The collision wheel assembly comprises a sliding rod 13 and a collision wheel 14 which slide along the left and right directions of the shell 1, one end of the sliding rod 13, which is close to the main lock door, extends out of the shell 1, the other end of the sliding rod is positioned in the shell 1, the outward extending end of the sliding rod 13 is provided with a collision wheel mounting groove, the collision wheel 14 is positioned in the collision wheel mounting groove, the collision wheel 14 is rotatably connected with the sliding rod 13 through a rotating shaft, the axis of the rotating shaft is along the up-down direction, the collision wheel 14 is a round wheel, the collision wheel 14 can be made of plastic materials or coated with plastic materials, when the main lock door is closed, the collision wheel 14 rotates and contracts inwards together with the sliding rod 13, so that scratches on the main lock door can be prevented, the problem of blocking when the door is closed can not occur, and the collision wheel 14 is made.

In the implementation, the one end that slide bar 13 is located casing 1 is provided with first baffle 15, this first baffle 15 is run through to the tip of slide bar 13, the one end that bumper 5 is close to slide bar 13 is provided with spring mounting section of thick bamboo 16, spring mounting section of thick bamboo 16 is close to the one end of flexible subassembly and can be followed left right direction sliding connection with casing 1, first spring 6 can be the spring, spring one end is located spring mounting section of thick bamboo 16, another pot head supports on first baffle 15 in the outside and the tip of bumper 5, when slide bar 13 inwards move, first baffle 15 promotes first spring 6 inwards move, and then drive bumper 5 inwards move and get into in draw-in groove 8.

Be provided with second baffle 17 on the casing 1 of the one end that is close to flexible subassembly at bumper 5, bumper 5 runs through second baffle 17 and can relative slip with second baffle 17, and second spring 7 sets up between second baffle 17 and spring mounting section of thick bamboo 16, and after the inside motion of spring mounting section of thick bamboo 16, second spring 7 is compressed, and after bumping the wheel subassembly was released, second spring 7 recovered deformation and released bumper 5 from draw-in groove 8.

The shell 1 comprises a lock body 101 and a mounting plate 102 connected with a door body, the top end of an upper pull rod hook 2 is lower than the top end of the mounting plate 102, the top end of the upper pull rod hook 2 is 3-5 cm far away from the top end of the mounting plate 102, the bottom end of a lower pull rod hook 3 is higher than the bottom end of the mounting plate 102, the bottom end of the lower pull rod hook 3 is 3-5 cm far away from the bottom end of the mounting plate 102, mounting holes 103 used for being connected with the door body are formed in the top end and the bottom end of the mounting plate 102, when the door lock is installed, a worker can observe the positions of the upper pull rod hook 2, the lower pull rod hook 3 and a ground lock through the mounting holes 103 and can install under a visual condition, the distance between the top end of the upper pull rod hook 2 and the bottom end of the lower pull rod hook 3 is shorter than that of an existing door lock is available.

The utility model discloses a pair of vice lock door that the second aspect provided, inside is provided with foretell lock, install vice lock door with this lock in, the last pull rod hook 2 of lock is connected with the day lock in the vice lock door, lower pull rod hook 3 is connected with the ground lock, the axis of rotation that will be connected with the AND gate handle inserts and accomplishes in the hole 403 of stalling and connect, under the condition that main lock door does not close, the bump wheel subassembly is in the position of unblocking, the door handle is rotatable, under the condition that main lock door is closed, the bump wheel subassembly removes to door body inside, bumper bar 5 stretches into in draw-in groove 8, the bump wheel subassembly is in the locking position this moment, the flexible subassembly can't stretch out and draw back, the above-mentioned lock self-locking function of this pair lock door installation, need not to set up the safeties who is used for controlling day ground lock in addition in vice lock.

Referring to the structure diagram of the door lock shown in fig. 1, the door lock provided by the present application has the following working principle:

the door lock is arranged in an auxiliary lock door body of the double-open door, during installation, an upper pull rod hook 2 is connected with a top lock, a lower pull rod hook 3 is connected with a ground lock, and then a square rotating shaft of the door handle is inserted into a thumb wheel 4 and is connected with the thumb wheel 4 in a rotation stopping way;

when the double-opening door is closed tightly, the auxiliary lock door is locked, the upper pull rod hook 2 and the lower pull rod hook 3 are in an ejecting state, the top lock and the ground lock are both positioned in the bolt inserting hole of the door frame, one side of the main lock door close to the auxiliary lock door inwards compresses the touch wheel assembly, the touch wheel assembly pushes the safety rod 5 into the clamping groove 8 through the first spring 6, and at the moment, the lower pull rod hook 3 cannot move and is in a locking state, so that the door handle cannot rotate, and the auxiliary lock door cannot be opened;

when the auxiliary lock door needs to be opened, the main lock door needs to be opened firstly, after the main lock door is opened, the touch wheel assembly is released and popped up, the safety rod 5 is pushed out of the clamping groove 8 by the second spring 7, the lower pull rod hook 3 is released, the door handle can be rotated at the moment, the upper pull rod hook 2 and the lower pull rod hook 3 are retracted inwards for unlocking, and the auxiliary lock door is opened;

when the double-open door needs to be closed, the auxiliary lock door needs to be closed firstly, the door handle is rotated, the upper pull rod hook 2 and the lower pull rod hook 3 are enabled to contract inwards, the upper lock and the ground lock are driven to contract inwards, after the auxiliary lock door is closed, the door handle is loosened, the third spring 9 drives the upper pull rod hook 2 and the lower pull rod hook 3 to extend out of the shell 1, the upper ground lock is driven to be locked with the door frame, then the main lock door is closed, the main lock door compresses the touch wheel assembly, and the safety rod 5 is driven to enter the clamping groove 8 to be locked again.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A door lock, comprising:

a housing (1);

the telescopic component is arranged in the shell (1) and comprises an upper pull rod hook (2), a lower pull rod hook (3) and a shifting wheel (4), the top end of the upper pull rod hook (2) and the bottom end of the lower pull rod hook (3) respectively penetrate out of the shell (1) upwards and downwards to be used for being connected with a top-to-bottom lock in a door body, the upper pull rod hook (2) and the lower pull rod hook (3) are both connected with the shell (1) in a sliding mode along the vertical direction, the bottom end of the upper pull rod hook (2) and the top end of the lower pull rod hook (3) are respectively connected with the shifting wheel (4) in a transmission mode, the shifting wheel (4) is connected with the shell (1) in a rotating mode, the rotating axis is along the front-back direction of the shell (1), a third spring (9) is arranged between the upper pull rod hook (2) and the lower pull rod hook (3) and the shell (1), and when the shifting wheel (4) rotates along the first direction, the upper pull rod hook (2) and the lower pull rod hook (3) are retracted into the shell (1), the third spring (9) is stretched to store force, the unlocking state is achieved at the moment, the thumb wheel (4) is released at the moment, the third spring (9) recovers to deform to drive the upper pull rod hook (2) and the lower pull rod hook (3) to extend out of the shell (1), and the locking state is achieved at the moment;

follow safeties that casing (1) left and right directions set up, including bumper bar (5) and bumping wheel subassembly, bumping wheel subassembly one end is located casing (1) is close to the outside of main lock door one side, and the other end is located in casing (1), bumper bar (5) are located bump wheel subassembly with between the flexible subassembly, bump wheel subassembly with be provided with first spring (6) between bumper bar (5), bumper bar (5) with be provided with second spring (7) between casing (1), go up pull rod hook (2) or pull rod hook (3) down with the position that bumper bar (5) correspond is provided with draw-in groove (8), when bumping wheel subassembly to when casing (1) internal compression, through first spring (6) promote bumper bar (5) inward movement card goes into in draw-in groove (8), the telescopic assembly is locked, the second spring (7) is compressed to accumulate force, when the catch wheel assembly is released, the second spring (7) restores to deform and outwards pushes out the bumper (5), the bumper (5) is separated from the clamping groove (8), and the telescopic assembly is unlocked.

2. Door lock according to claim 1, characterized in that the thumb wheel (4) comprises a turning part (401) with a central cylindrical shape and a lever part (402) outside the turning part (401) for driving the movement of the upper pull rod hook (2) and the lower pull rod hook (3).

3. The door lock according to claim 2, characterized in that a rotation stopping hole (403) for connecting with a rotation shaft of a door handle is formed in the middle of the rotation portion (401), the rotation portion (401) is rotatably connected with the shell (1), a blocking piece (10) is arranged at the bottom end of the upper pull rod hook (2) and the top end of the lower pull rod hook (3), and an extending end of the rod portion (402) is connected with the blocking piece (10) in an interference mode.

4. The door lock according to claim 1, characterized in that the upper pull rod hook (2) and the lower pull rod hook (3) are provided with at least two elongated sliding grooves (11) extending in the up-down direction, and the housing (1) is provided with a guide rod (12) at a position corresponding to the sliding grooves (11).

5. The door lock according to claim 1, wherein the latch wheel assembly comprises a slide bar (13) and a latch wheel (14) slidably coupled to the housing (1), the slide bar (13) extends out of the housing (1) near a side of the main door, and the latch wheel (14) is rotatably coupled to an extended end of the slide bar (13) with a rotation axis in an up-and-down direction.

6. The door lock according to claim 5, characterized in that the sliding rod (13) is provided with a first baffle (15) at one end inside the housing (1), the safety lever (5) is provided with a spring mounting cylinder (16) at one end close to the sliding rod (13), the spring mounting cylinder (16) is slidably connected with the housing (1) at one end close to the telescopic assembly along the left-right direction, and the first spring (6) is arranged between the spring mounting cylinder (16) and the first baffle (15).

7. A door lock according to claim 6, characterized in that a second shutter (17) is provided on the housing (1) at the end of the safety lever (5) close to the retraction assembly, the safety lever (5) passing through the second shutter (17), the second spring (7) being provided between the spring mounting cylinder (16) and the second shutter (17).

8. The door lock according to claim 1, wherein the housing (1) comprises a lock body (101) and a mounting plate (102) arranged at one side close to the main lock door and used for being connected with a door body of the auxiliary lock door, the top end of the upper pull rod hook (2) is lower than the top end of the mounting plate (102), the bottom end of the lower pull rod hook (3) is higher than the bottom end of the mounting plate (102), and the top end and the bottom end of the mounting plate (102) are provided with mounting holes (103) penetrating through the mounting plate (102) along the left-right direction.

9. The door lock according to claim 8, characterized in that the distance between the top end of the upper pull rod hook (2) and the top end of the mounting plate (102) is 3-5 cm, and the distance between the bottom end of the lower pull rod hook (3) and the bottom end of the mounting plate (102) is 3-5 cm.

10. A secondary lock door comprising a door lock according to any one of claims 1 to 9.