CN216714109U - Connection structure and have its lock - Google Patents

Abstract

The application relates to the technical field of door locks, and particularly discloses a connecting structure and a door lock with the same, wherein the connecting structure comprises a first connecting piece, a mounting frame and a limiting assembly, the first connecting piece is provided with at least two connecting parts; at least two supports matched with the connecting part are arranged on the mounting rack; the limiting assembly is used for limiting and connecting the first connecting piece and the mounting rack. In the installation, the user can treat adapting unit and connect respectively on each connecting portion, can treat each connecting portion and connect simultaneously on the mounting bracket through first connecting piece to couple together first connecting piece and mounting bracket through spacing subassembly, ensure the stability that first connecting piece is connected. Through this kind of mode, can treat each simultaneously adapting unit to connect on the mounting bracket, improve work efficiency, the user operation of being convenient for.

Description

Connection structure and have its lock

Technical Field

The application relates to the technical field of door locks generally, and particularly discloses a connecting structure and a door lock with the same.

Background

Along with the progress of science and technology, a plurality of intelligent door locks appear in the market, the trouble that a key is lost and is forgotten to be carried can be solved, family members can open the family door through remote assistance, and a lock master does not need to be taken out or be opened because the family members wait at the family door or run away. The inner door lock of the intelligent door lock still needs keys for unlocking and locking, and the existing inner door lock is relatively complex in operation and relatively difficult in installation precision due to the fact that all parts are independently installed in the installation process.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that the installation of interior lock is complicated among the prior art, the installation accuracy is low, this application provides a connection structure and has its lock.

In order to realize the purpose of the utility model, the following technical scheme is adopted in the application:

according to a first aspect of embodiments of the present application, there is provided a connection structure including:

the first connecting piece is provided with at least two connecting parts;

the mounting frame is provided with at least two supports matched with the connecting part; and

and the limiting assembly is used for limiting and connecting the first connecting piece and the mounting rack.

According to an embodiment of the present application, the limiting component includes a hollow portion disposed on the support, and the hollow portion is used for cooperating with the first connecting member.

According to an embodiment of the present application, the limiting component includes a pillar disposed on the connecting portion, and a supporting hole for being engaged with the pillar is disposed on the support.

According to an embodiment of the present application, the first connecting member is disposed in a U-shaped configuration.

According to a second aspect of the embodiments of the present application, there is provided a door lock including the aforementioned connection structure.

According to an embodiment of the present application, wherein the connection portion includes a first connection portion and a second connection portion;

the door lock includes:

the device comprises a shell, a handle and a handle, wherein an opening is formed in the shell, and a cavity is formed in the shell;

the first key is connected with the first connecting part;

the second key is connected with the second connecting part; and

the panel, set up in on the opening and with the mounting bracket is connected, be provided with on the panel be used for with first button complex first opening and be used for with second button complex second opening.

According to an embodiment of the present application, the portable electronic device further comprises a circuit board disposed in the cavity, wherein the circuit board is electrically connected with a first switch and a second switch; the first key is used for controlling the on-off of the first switch, and the second key is used for controlling the on-off of the second switch.

According to an embodiment of the present application, the method further comprises:

the third switch is arranged on the circuit board and is electrically connected with the circuit board;

the third key is used for controlling the on-off of the third switch; and

and the third opening part is arranged on the shell and is used for being matched with the third key.

According to an embodiment of the present application, the method further comprises:

a first mounting ring disposed between the first opening and the first key; and

and a second mounting ring disposed between the second opening and the second key.

According to an embodiment of the present application, a second connector is connected between the first mounting ring and the second mounting ring.

According to the technical scheme, the connecting structure and the door lock with the same have the advantages and positive effects that: the embodiment of the application discloses a connecting structure and a door lock with the same, wherein the connecting structure comprises a first connecting piece, a mounting frame and a limiting assembly, the first connecting piece is provided with at least two connecting parts; at least two supports matched with the connecting part are arranged on the mounting rack; the limiting assembly is used for limiting and connecting the first connecting piece and the mounting rack. In conclusion, in the installation, the user can treat adapting unit and connect respectively on each connecting portion, can treat each connecting portion and connect simultaneously on the mounting bracket through first connecting piece to couple together first connecting piece and mounting bracket through spacing subassembly, ensure the stability that first connecting piece is connected. Through the mode, each part to be connected can be connected to the mounting frame at the same time, so that the working efficiency is improved, and the operation by a user is facilitated.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

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

FIG. 1 is an exploded view of a connection shown according to an exemplary embodiment.

Fig. 2 is a schematic diagram illustrating a first connector in a connection configuration according to an exemplary embodiment.

Fig. 3 is a schematic diagram illustrating a structure of a mounting bracket in a coupling structure according to an exemplary embodiment.

Fig. 4 is an exploded view of the overall structure of a door lock according to an exemplary embodiment.

FIG. 5 is a schematic diagram of a door lock according to an exemplary embodiment.

FIG. 6 is a cross-sectional view of a door lock shown according to an exemplary embodiment.

Wherein the reference numerals are as follows:

1. a housing; 2. an opening; 3. a cavity; 4. a first connecting member; 5. a first key; 6. a second key; 7. a panel; 8. a first opening portion; 9. a second opening portion; 10. a mounting frame; 11. a first support; 12. a second support; 13. a hollow-out section; 14. a first support; 15. a first branch hole; 16. a second support; 17. a second branch hole; 18. a circuit board; 19. a first switch; 20. a second switch; 21. a third key; 22. a first mounting ring; 23. a second mounting ring; 24. a second connecting member; 25. a marking part; 26. a connecting portion; 27. a support; 28. a pillar; 29. and (7) supporting the hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that in the description and claims of the present application and in the above-mentioned drawings, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Also, the terms "comprises," "comprising," and "having," as well as any variations thereof or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1-6, the disclosed embodiment provides a connection structure including a first connection member 4, a mounting bracket 10, and a limit component. The first connecting piece 4 is provided with connecting parts 26, and the number of the connecting parts 26 is at least two; at least two supports 27 for matching with the connecting part 26 are arranged on the mounting rack 10; the limiting assembly is used for limiting and connecting the first connecting piece 4 and the mounting rack 10.

In the installation, the user can treat adapting unit and connect respectively on each connecting portion 26, can treat each connecting portion simultaneous connection on mounting bracket 10 through first connecting piece 4 to couple together first connecting piece 4 and mounting bracket 10 through spacing subassembly, ensure the stability that first connecting piece 4 is connected. In this way, each of the parts to be connected can be connected to the mounting frame 10 at the same time, thereby improving the working efficiency and facilitating the operation of the user.

In a specific embodiment, two, three or more connecting portions 26 are provided, and each connecting portion 26 is connected to the first connecting member 4; the connecting portions 26 are used for connecting with the components to be mounted, and when there are at least two components to be mounted, the connecting portions 26 can be correspondingly connected to different connecting portions 26, and then the components to be mounted are simultaneously connected to the mounting frame 10 through the first connecting members 4, so that the operation is convenient. It should be noted that the position where each connecting portion 26 is disposed on the first connecting member 4 is not limited, and those skilled in the art may arrange the connecting portions according to the space layout rationalization, and in addition, each component to be mounted may be the same component, or may be different components, and this embodiment also does not limit this.

In a specific embodiment, the limiting assembly includes a hollow-out portion 13 disposed on the support 27, and the hollow-out portion 13 is configured to cooperate with the first connecting element 4. The hollow part 13 is matched with the first connecting piece 4, and the supporting and fixing functions are provided for the first connecting piece 4. Optionally, the first connecting member 4 is in snap fit with the hollow portion 13.

In a specific embodiment, the first connecting member 4 may be disposed in a straight-line structure or in a U-shaped structure, in an embodiment, the first connecting member 4 is disposed in a U-shaped structure; therefore, after the first connecting piece 4 is matched with the hollow part 13, the middle position of the first connecting piece 4 protrudes out of the mounting frame 10, so that the position of the first connecting piece 4 cannot be influenced by the mounting frame 10 in the mounting process.

In a specific embodiment, the support 27 is arranged in a groove structure, the support 27 is fitted with the connecting portion 26, and each support 27 is arranged in one-to-one correspondence with each connecting portion 26; by way of example, when the connecting portion 26 is provided with two, the two supports 27 are also provided, and in this case, the connecting portion 26 and the supports 27 are in one-to-one corresponding fit connection, so that the connecting portion 26 is stably connected to the mounting frame 10. Furthermore, optionally, the number of the supporting seats 27 may also be different from the number of the connecting portions 26, for example, when the number of the supporting seats 27 is greater than the number of the connecting portions 26, after the connecting portions 26 are correspondingly connected to the supporting seats 27, the rest of the supporting seats 27 may also be connected to other components, so as to perform a supporting and limiting function on the other components. In addition, when the number of the supporting seats 27 is smaller than the number of the connecting parts 26, the shape of each supporting seat 27 may be partially the same or completely different, so that part of the supporting seats 27 may be simultaneously matched with two or three or more connecting parts 26 to achieve the connecting effect.

In a specific embodiment, the shape of the seat 27 is adapted to the shape of the connecting portion 26; by way of example, when the connecting portion 26 has a cylindrical shape, the side wall of the recess of the seat 27 may have a complete circular shape or a semicircular structure. The shape of the connecting portion 26 may be a cube or a rectangular parallelepiped, and the seat 27 is correspondingly configured to have a shape matching the shape, which is not specifically illustrated herein.

In an alternative embodiment, the limiting assembly comprises a pillar 28 disposed on the connecting portion 26, and the support 27 is provided with a supporting hole 29 for cooperating with the pillar 28. The engagement of the post 28 with the hole 29 provides a positive connection of the first connector 4 to the mounting bracket 10.

Referring to fig. 1 to 6, the disclosed embodiment provides a door lock including the aforementioned connection structure. The door lock provided by the embodiment comprises the connecting structure, so that the door lock with the connecting structure also has all the technical effects described above.

In a particular embodiment, the door lock comprises a first key 5 and a second key 6, i.e. the aforementioned part to be mounted. The connecting portion 26 includes a first connecting portion and a second connecting portion, the first key 5 is connected with the first connecting portion, and the second key 6 is connected with the second connecting portion; therefore, in the installation process, after the first connecting piece 4 is connected to the installation frame 10, the first key 5 and the second key 6 can be installed at the same time, and the operation is convenient.

In a specific embodiment, the door lock further comprises a housing 1 and a panel 7, wherein the housing 1 is provided with an opening 2, and the housing 1 is provided with a cavity 3. The first connecting piece 4 is arranged in the cavity 3. The panel 7 is disposed on the opening 2, and the panel 7 is provided with a first opening 8 for engaging with the first key 5 and a second opening 9 for engaging with the second key 6.

In the installation of lock, the handheld first connecting piece 4 of user can install first button 5 in first opening 8 simultaneously, installs second button 6 in second opening 9, just can ensure the reliability of first button 5 and second button 6 simultaneously through being connected first connecting piece 4 and panel 7, sets up panel 7 through opening 2 and can accomplish the installation of lock on shell 1. In this way, a door lock is provided which is easy to install and which can ensure installation accuracy and installation reliability.

In an alternative embodiment, the side of the first key 5 facing away from the housing 1 and the side of the second key 6 facing away from the housing 1 are flush with each other and with the side of the panel 7 facing away from the housing 1. By arranging the first button 5, the second button 6 and the panel 7 in a flush manner, the overall structure of the door lock is made more compact.

In an alternative embodiment, a side of the first key 5 facing away from the housing 1 and a side of the second key 6 facing away from the housing 1 are flush, and the first key 5 and the second key 6 are both arranged to protrude from the panel 7. By arranging the first key 5 and the second key 6 as the protruding panel 7, the user can easily find the positions of the first key 5 and the second key 6 during the use process, and the operation of the user is also convenient in the dark condition.

It should be noted that the shape and size of the first key 5 and the second key 6 are not limited in this application. In the practical use process, the shape and the size can be selected by the person skilled in the art according to the requirements. By way of example, the first key 5 and the second key 6 in the present application are both cylindrical structures, and the shape of the first key 5 is larger than the shape of the second key 6. In addition, the shapes of the first key 5 and the second key 6 may be set to be different, for example, one of the first key 5 and the second key 6 is cylindrical, and the other is rectangular. In addition, the positions of the first key 5 and the second key 6 are not limited in this application, and as an example, the first key 5 and the second key 6 are arranged up and down in this application. In addition, the first key 5 and the second key 6 may be arranged left and right, or in other arrangements.

In a specific embodiment, the first key 5 and the second key 6 may be made of the same material or different materials, and for convenience of processing and preparation, the first key 5 and the second key 6 in this embodiment are made of the same material and are both made of a hard material or a rubber material.

In an alternative embodiment, the density of the material of the first key 5 and the second key 6 is uniform. By uniformly arranging the densities of the first key 5 and the second key 6, the situation that the material generates shrinkage marks during heat melting can be effectively avoided, the shrinkage time and the thickness of each part of the first key 5 and the second key 6 which are uniformly arranged in the densities are consistent, the reliability of the first key 5 and the second key 6 can be improved, and the situation that the surfaces of the first key 5 and the second key 6 shrink is effectively avoided.

In a specific embodiment, the first opening 8 is adapted to cooperate with the first button 5, and the second opening 9 is adapted to cooperate with the second button 6, so that when the first button 5 is a cylinder, the first opening 8 is a circular hole formed along the thickness direction of the panel 7, and similarly, when the second button 6 is a cylinder, the second opening 9 is a circular hole formed along the thickness direction of the panel 7.

In a specific embodiment, the mounting bracket 10 is detachably connected to the panel 7, and the mounting bracket 10 is fixedly connected to the panel 7 by screws or nuts.

In a specific embodiment, the door lock further comprises a circuit board 18 disposed in the cavity 3, and the circuit board 18 is electrically connected with a first switch 19 and a second switch 20; the first key 5 is used for controlling the on-off of the first switch 19, and the second key 6 is used for controlling the on-off of the second switch 20. The circuit board 18 is fixedly connected to the housing 1 by screws or nuts. The first switch 19 is disposed opposite to the first button 5, and the second switch 20 is disposed opposite to the second button 6, so that the first switch 19 and the second switch 20 are disposed on the circuit board 18 up and down and are electrically connected to the circuit board 18. The first switch 19 and the second switch 20 may be any one of switches that can be pressed or contacted to open and close a circuit in the prior art, such as a proximity switch or a touch switch. Therefore, a user can press the first key 5 to the first switch 19 by pressing the first key 5 downwards to realize the on-off of the first switch 19, and can press the second key 6 to the second switch 20 by pressing the second key 6 downwards to realize the on-off of the second switch 20.

In a particular embodiment, the seat 27 comprises a first seat 11 and a second seat 12, the first key 5 being embedded in the first seat 11 and the second key 6 being embedded in the second seat 12. The strut 28 comprises a first strut 14 and a second strut 16, a first strut hole 15 used for being matched with the first strut 14 is formed in the first support 11, and a second strut hole 17 used for being matched with the second strut 16 is formed in the second support 12; therefore, when the user presses the first key 5, the first support 14 and the first key 5 are driven to move synchronously, and the first switch 19 is switched on and off by the pressing of the first support 14 and the first switch 19. When a user presses the second key 6, the user drives the second support 16 and the second key 6 to move synchronously, and the second switch 20 is switched on and off by the squeezing of the second support 16 and the second switch 20.

In a specific embodiment, a plurality of first reinforcing ribs are arranged on the first connecting portion, and the first reinforcing ribs are uniformly distributed on the peripheral side of the first support column 14; the strength of the first pillar 14 is improved by the provision of the first reinforcing bead. A plurality of second reinforcing ribs are arranged on the second connecting portion, and the second reinforcing ribs are uniformly distributed on the peripheral side of the second support column 16; the strength of the second pillar 16 is improved by the provision of the second reinforcing bead.

In a specific embodiment, the sides of the first support 14 and the second support 16 facing away from the panel 7 are provided with elastic members, and the elasticity of the first key 5 and the second key 6 can be increased by the arrangement of the elastic members, so that the service life is prolonged, and damage is avoided. Optionally, the elastic member is made of rubber or silica gel.

In an optional embodiment, the door lock further includes a third switch, a third button 21 and a third opening, wherein the third switch is disposed on the circuit board 18 and electrically connected to the circuit board 18, the third button 21 is used for controlling on/off of the third switch, the third opening is disposed on the housing 1, and the third opening is used for matching with the third button 21. In the actual use process, the user can press the third button 21 to press the third switch, so that the third switch is turned on or off. Optionally, a third pillar is disposed on the third key 21.

In a specific embodiment, the first key 5 and the second key 6 are both provided with an identification part 25; the corresponding function of the key is convenient to know through the arrangement of the identification part 25. Optionally, the identification part 25 on the first key 5 is an unlocking identification, and the user can know that the unlocking effect of the door lock can be realized by pressing the first key 5. The identification part 25 on the second button 6 is a lock closing identification, so that the user can know that the lock closing effect of the door lock can be realized by pressing the second button 6.

In an alternative embodiment, the third key 21 is also provided with an identification portion 25, and the identification portion 25 on the third key 21 is a defense sign, so that the user can know that the defense effect can be achieved by pressing the third key 21.

In an optional embodiment, the circuit board 18 may further be provided with a reset module, where the reset module is a corresponding structure that is the same as the prior art and can implement the setting of returning to the factory mode after power-on connection. Specifically, the reset module, the first switch 19 and the second switch 20 are connected in series, so that the reset module can be connected when a user presses the first key 5 and the second key 6 simultaneously, and factory setting of the door lock is restored. Optionally, a timing module may be further connected in series in the circuit structure, so that after the first key 5 and the second key 6 are pressed simultaneously, the circuit may be connected after several seconds, and the situation of misoperation of a user may be effectively avoided. It should be noted that, the reset module and the timing module are not described in detail in this application, and any circuit structure that can be implemented in the prior art may be used. In addition, the specific connection mode between the modules is not limited in the application, so that the first key 5 and the second key 6 can be pressed simultaneously to generate other effects. The reset module may be another module structure, so that the first key 5 and the second key 6 can achieve other effects after being pressed simultaneously. As an example, the first button 5 and the second button 6 may enter into a self-locking effect or a child-locking effect of the door lock after being pressed simultaneously.

In addition, when the door lock enters a new working state after the first key 5 and the second key 6 are simultaneously pressed, the first key 5 and the second key 6 are arranged up and down, so that the user can conveniently and simultaneously press the first key 5 and the second key 6 in the actual use process of the first key 5 and the second key 6, and the operation of the user is facilitated.

In a specific embodiment, the door lock further comprises a first mounting ring 22 and a second mounting ring 23, the first mounting ring 22 is disposed between the first opening 8 and the first button 5, and the second mounting ring 23 is disposed between the second opening 9 and the second button 6. The first key 5 can be protected by the first mount ring 22 by providing the first mount ring 22 on the outer peripheral side of the first key 5 and by providing the first mount ring 22 in the first opening 8; the second mount ring 23 is provided on the outer peripheral side of the second key 6, and the second mount ring 23 is provided in the second opening 9, whereby the second key 6 can be protected by the second mount ring 23.

In an alternative embodiment, a second connector 24 is connected between the first mounting ring 22 and the second mounting ring 23. The first mounting ring 22 and the second mounting ring 23 are fixedly connected together through the second connecting piece 24, so that the first mounting ring 22 and the second mounting ring 23 can be conveniently mounted.

In an alternative embodiment, the first mounting ring 22 and the second mounting ring 23 are made of a light-transmitting material, and a first aperture is disposed in the first mounting ring 22 and a second aperture is disposed in the second mounting ring 23. Therefore, when the first aperture emits light, the light can penetrate through the first mounting ring 22, and when the second aperture emits light, the light can penetrate through the second mounting ring 23, so that the effects of decoration and illumination can be achieved, and a user can conveniently know the effect of each key in a dark environment.

In an alternative embodiment, the first aperture may also be connected in series with the first switch 19, such that when the first switch 19 is on, the first aperture is illuminated. The second aperture may also be connected in series with the second switch 20 such that when the second switch 20 is on, the second aperture is illuminated.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications and changes to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A connecting structure, characterized by comprising:

the connecting device comprises a first connecting piece (4), wherein the first connecting piece (4) is provided with connecting parts (26), and the number of the connecting parts (26) is at least two;

the mounting frame (10) is provided with at least two supports (27) used for being matched with the connecting part (26); and

and the limiting assembly is used for limiting and connecting the first connecting piece (4) and the mounting rack (10).

2. A connection structure as claimed in claim 1, characterized in that said stop assembly comprises a hollowed-out portion (13) provided on said seat (27), said hollowed-out portion (13) being intended to cooperate with said first connection element (4).

3. A connection arrangement according to claim 1 or 2, characterised in that the stop assembly comprises a post (28) provided on the connecting portion (26), the abutment (27) being provided with a branch hole (29) for cooperation with the post (28).

4. A connection according to claim 1, characterized in that the first connecting member (4) is arranged in a U-shaped configuration.

5. A door lock characterized by comprising the connecting structure according to any one of claims 1 to 4.

6. A door lock according to claim 5, characterized in that said connecting portion (26) comprises a first connecting portion and a second connecting portion;

the door lock includes:

the device comprises a shell (1), an opening (2) is formed in the shell, and a cavity (3) is formed in the shell (1);

a first key (5) connected to the first connection portion;

a second key (6) connected to the second connecting portion; and

the panel (7) is arranged on the opening (2) and connected with the mounting rack (10), and the panel (7) is provided with a first opening part (8) matched with the first key (5) and a second opening part (9) matched with the second key (6).

7. A door lock according to claim 6, characterized in that it further comprises a circuit board (18) arranged inside said cavity (3), said circuit board (18) being electrically connected with a first switch (19) and a second switch (20); the first key (5) is used for controlling the on-off of the first switch (19), and the second key (6) is used for controlling the on-off of the second switch (20).

8. The door lock of claim 7, further comprising:

the third switch is arranged on the circuit board (18) and is electrically connected with the circuit board (18);

a third key (21) for controlling the on-off of the third switch; and

and the third opening part is arranged on the shell (1) and is used for being matched with the third key (21).

9. The door lock of claim 6, further comprising:

a first mounting ring (22) provided between the first opening (8) and the first key (5); and

and a second mounting ring (23) provided between the second opening (9) and the second key (6).

10. A door lock according to claim 9, characterized in that a second connecting piece (24) is connected between the first mounting ring (22) and the second mounting ring (23).

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