Door lock and fence

Abstract

The utility model provides a door lock and fence, and the door lock comprises a first seat body which is used for being connected with a door plate and is provided with a first locking part; the second seat body is used for being connected with the fence main body; the lock body is arranged on the second seat body in a manner of moving up and down, the lock body is provided with a second locking part, the second locking part has a locking state matched with the first locking part and an unlocking state separated from the first locking part, and the second locking part moves up and down along with the lock body so as to be switched between the locking state and the unlocking state; and when the second locking part is in a locking state, the first seat body is limited to move back and forth, so that the door plate reliably locks the doorway on the fence main body. According to the door lock disclosed by the utility model, only one action needs to be completed whether the door lock is locked or unlocked, so that the operation is simpler, and the locking and unlocking efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of locks, and in particular to a door lock and a fence. Background Art

[0002] A fence is a facility used to fix the activity range of pets or children. Currently, most fences on the market include a fence body and a door panel. The fence body has a doorway for pets or children to enter and exit. The door panel is rotatably provided on the fence body through a hinge. The door panel can open or close the doorway, and when the door panel closes the doorway, the side of the door panel away from the hinge is fixedly connected to the fence body through a lock.

[0003] At present, the above locks are generally latch door locks, which mainly include three parts: a lock body, a latch, and a latch hole. One of the lock body and the latch hole is provided on the fence body, and the other is provided on the door panel. The latch is provided on the lock body. When the latch is pulled out, the latch will be separated from the latch hole, thereby opening the lock. When the latch is extended in, the latch cooperates with the latch hole, thereby closing the lock. However, when opening the above lock, the latch needs to be flipped first to release the axial limit of the latch, and then the latch is pushed axially to make the latch separate from the latch hole. The above two actions need to be completed to unlock the lock, which is cumbersome to operate and inefficient. Utility Model Content

[0004] The embodiment of the present application provides a door lock and a fence to solve the problems existing in the related art. The technical solution is as follows:

[0005] In a first aspect, an embodiment of the present application provides a door lock, comprising:

[0006] A first seat body, the first seat body is used to be connected to the door panel, and the first seat body is provided with a first locking portion;

[0007] A second seat body, the second seat body is used to connect with the fence body;

[0008] A lock body, wherein the lock body is movably arranged on the second seat body up and down, and the lock body is provided with a second locking portion, the second locking portion has a locked state that cooperates with the first locking portion and an unlocked state that disengages from the first locking portion, the second locking portion switches between the locked state and the unlocked state as the lock body moves up and down, and when the second locking portion is in the locked state, the first seat body is restricted from moving forward and backward.

[0009] In one embodiment, one of the first locking portion and the second locking portion includes a locking protrusion, and the other includes a locking groove, and the locking groove cooperates with the locking protrusion.

[0010] In one embodiment, the second seat body is further provided with a first positioning portion;

[0011] The lock body is further provided with a second positioning portion. When the second locking portion is in the locked state, the second positioning portion cooperates with the first positioning portion to limit the first locking portion from moving downward relative to the second locking portion.

[0012] In one embodiment, the second base body is provided with a first connecting hole, and the lock body is provided with a connecting column, and the connecting column is inserted into the first connecting hole so as to be movable up and down.

[0013] In one embodiment, the second seat body is further provided with a first limiting portion, and the first limiting portion is located on one side close to the upper end of the first connecting hole;

[0014] The lock body is further provided with a second limiting portion, which is located on one side close to the lower end of the connecting column. The second limiting portion can abut against the first limiting portion to limit the connecting column from upwardly separating from the first connecting hole.

[0015] In one embodiment, the lower end of the first connection hole passes through the bottom wall of the second seat body, and the lower end of the first connection hole can allow the second limiting portion to move in and out of the first connection hole;

[0016] The lock body is further provided with a lock head, which is located outside the second seat body and provided with the second locking portion. The lock head and the connecting column are separately arranged.

[0017] In one embodiment, the connecting column comprises:

[0018] A connector, the connector being connected to the locking head;

[0019] Two connecting arms, the two connecting arms are arranged laterally apart, the upper ends of the two connecting arms are respectively placed on the opposite sides of the bottom of the connecting head, the lower ends of the two connecting arms are arranged separately, and the outer side walls of the lower ends of the two connecting arms are provided with the second limiting part, and the second limiting part and the first connecting hole can be slidably matched.

[0020] In one embodiment, the bottom of the lock head has a positioning groove and a threaded hole, and the threaded hole is located on the bottom of the positioning groove;

[0021] At least the upper end of the connector is matched with the positioning groove, and the connector has a through hole;

[0022] The lock body further comprises a first fastener, the head of the first fastener abuts against the bottom of the connector, and the stem of the first fastener passes through the through hole and the threaded hole in sequence and is threadedly connected to the threaded hole;

[0023] An operating area is formed between the two connecting arms, and the operating area is used for the first fastener to be installed on the lock head.

[0024] In one embodiment, the first seat body has a first positioning hole and a second connecting hole, the first positioning hole is vertically arranged, the first positioning hole is used to cooperate with the first rod member on the door panel, the second connecting hole is perpendicular to the first positioning hole, the second connecting hole is connected to the first positioning hole and passes through the outer side wall of the first seat body, the second connecting hole is used to cooperate with the rod portion of the second fastener, and the second fastener connects the first seat body and the first rod member;

[0025] The second seat body has a second positioning hole and a third connecting hole. The second positioning hole is vertically arranged. The second positioning hole is used to cooperate with the second rod on the fence body. The third connecting hole is perpendicular to the second positioning hole. The third connecting hole is connected to the second positioning hole and passes through the outer side wall of the second seat body. The third connecting hole is used to cooperate with the rod part of the third fastener. The third fastener connects the second seat body and the second rod.

[0026] In one embodiment, the first seat body further has a third positioning hole and a fourth connecting hole, the third positioning hole is horizontally arranged, the third positioning hole is used to cooperate with the third rod on the door panel, the fourth connecting hole is perpendicular to the third positioning hole, the fourth connecting hole is connected to the third positioning hole and passes through the outer side wall of the first seat body, the fourth connecting hole is used to cooperate with the rod portion of the fourth fastener, and the fourth fastener connects the first seat body and the third rod.

[0027] In a second aspect, an embodiment of the present application provides a fence, including the above-mentioned door lock.

[0028] The advantages or beneficial effects of the above technical solution include at least:

[0029] The door lock of the present invention has a lock body that can be movably disposed on the second base body up and down, and the second locking part switches between a locked state and an unlocked state as the lock body moves up and down. Therefore, when locking, it is only necessary to control the lock body to move downward until the second locking part and the first locking part cooperate. When unlocking, it is only necessary to control the lock body to move upward until the second locking part and the first locking part disengage. Whether locking or unlocking, only one action needs to be completed, the operation is simpler, and the locking and unlocking efficiency can be improved.

[0030] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the door lock of the utility model when it is in a locked state;

[0033] Figure 2 for Figure 1 A cross-sectional view of the door lock shown;

[0034] Figure 3 It is a three-dimensional structural schematic diagram of the door lock of the utility model when it is in an unlocked state;

[0035] Figure 4 This is an exploded view of the door lock of the present utility model;

[0036] Figure 5 The three-dimensional structure diagram of the second seat body in the utility model

[0037] Figure 6 It is a three-dimensional structural schematic diagram of the lock in the utility model;

[0038] Figure 7 This is an assembly diagram of the door lock of the present utility model installed on a door panel.

[0039] Reference numerals

[0040] 1. First seat body; 11. First locking part; 12. First positioning hole; 13. Second connecting hole; 14. Third positioning hole; 15. Fourth connecting hole; 111. Locking protrusion; 2. Second seat body; 21. First positioning part; 22. First connecting hole; 23. First limiting part; 24. Second positioning hole; 25. Third connecting hole; 3. Lock body; 31. Second locking part; 311. Locking groove; 32. Second positioning part; 33. Connecting column; 331. Connecting head; 3311. Through hole; 332. Connecting arm; 3321. Second limiting part; 34. Locking head; 341. Positioning groove; 342. Threaded hole; 4. Door panel; 41. First rod; 42. Third rod; 5. Second rod. DETAILED DESCRIPTION

[0041] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0042] See also Figure 1-Figure 7 , shows a door lock of a preferred embodiment of the utility model, comprising:

[0043] A first base body 1, the first base body 1 is used to be connected with the door panel 4, and the first base body 1 is provided with a first locking portion 11;

[0044] A second seat body 2, the second seat body 2 is used to connect with the fence main body;

[0045] The lock body 3 is movably arranged on the second base body 2 up and down, and the lock body 3 is provided with a second locking portion 31. The second locking portion 31 has a locked state that cooperates with the first locking portion 11 and an unlocked state that disengages from the first locking portion 11. The second locking portion 31 switches between the locked state and the unlocked state as the lock body 3 moves up and down, and when the second locking portion 31 is in the locked state, the first base body 1 is restricted from moving forward and backward, so that the door panel 4 can reliably lock the doorway on the fence body.

[0046] The door lock of the present invention has a lock body 3 that is movably disposed on the second base body 2 and the second locking portion 31 switches between a locked state and an unlocked state as the lock body 3 moves up and down. Therefore, when locking, it is only necessary to control the lock body 3 to move downward until the second locking portion 31 and the first locking portion 11 cooperate. When unlocking, it is only necessary to control the lock body 3 to move upward until the second locking portion 31 and the first locking portion 11 are disengaged. Whether locking or unlocking, only one action needs to be completed, the operation is simpler, and the locking and unlocking efficiency can be improved.

[0047] See also Figure 1 In one embodiment, one of the first locking portion 11 and the second locking portion 31 includes a locking protrusion 111, and the other includes a locking groove 311, and the locking groove 311 cooperates with the locking protrusion 111. The locking structure composed of the locking groove 311 and the locking protrusion 111 has a simple overall structure, is easy to process, has low cost, and has high connection reliability.

[0048] In other embodiments, the first locking portion 11 includes a locking hole, the second locking portion 31 includes a locking shaft, and the locking shaft and the locking hole are plug-fitted.

[0049] See also Figure 2 , in one embodiment, the second seat body 2 is further provided with a first positioning portion 21;

[0050] The lock body 3 is also provided with a second positioning portion 32. When the second locking portion 31 is in a locked state, the second positioning portion 32 cooperates with the first positioning portion 21 to limit the downward movement of the first locking portion 11 relative to the second locking portion 31, thereby preventing the first locking portion 11 and the second locking portion 31 from being disengaged, thereby allowing the second locking portion 31 to be reliably maintained in a locked state.

[0051] In one embodiment, the first positioning portion 21 includes a positioning groove, and the second positioning portion 32 includes a positioning protrusion, and the positioning protrusion and the positioning groove are plugged into each other.

[0052] See also Figure 2 In one embodiment, the second base body 2 is provided with a first connection hole 22, and the lock body 3 is provided with a connection column 33, and the connection column 33 is inserted into the first connection hole 22 so as to be movable up and down. The connection structure composed of the first connection hole 22 and the connection column 33 is simple and practical, easy to process, and has high connection reliability.

[0053] In other embodiments, the first connecting hole 22 may be disposed on the lock body 3 , and the connecting column 33 may be disposed on the second base body 2 .

[0054] In other embodiments, a slide rail structure may be provided between the second base body 2 and the lock body 3 , and the slide rail structure may be used to enable the lock body 3 to move up and down relative to the second base body 2 .

[0055] See also Figure 4 and Figure 5 In one embodiment, the second seat body 2 is further provided with a first limiting portion 23, and the first limiting portion 23 is located on one side close to the upper end of the first connecting hole 22;

[0056] The lock body 3 is also provided with a second limiting portion 3321, which is located on one side close to the lower end of the connecting column 33. The second limiting portion 3321 can be abutted against the first limiting portion 23 to limit the connecting column 33 from upwardly disengaging from the first connecting hole 22, thereby preventing the lock body 3 from disengaging from the second base body 2, and ensuring that the lock body 3 always remains connected to the second base body 2.

[0057] See also Figure 2 and Figure 4 In one embodiment, the lower end of the first connection hole 22 passes through the bottom wall of the second seat body 2, and the lower end of the first connection hole 22 can allow the second limiting portion 3321 to move in and out of the first connection hole 22;

[0058] The lock body 3 is further provided with a lock head 34, which is located outside the second seat body 2, and is provided with the second locking portion 31, and the lock head 34 and the connecting column 33 are separately provided. Since the lock body 3 is composed of the lock head 34 and the connecting column 33 which are separately provided, during installation, the connecting column 33 can be firstly passed through the first connecting hole 22 from the bottom to the top from the lower end of the first connecting hole 22 and the upper end of the connecting column 33 can be extended out of the upper end of the first connecting hole 22, and then the lock head 34 can be placed on the second seat body 2 and the upper ends of the lock head 34 and the connecting column 33 can be connected together, and the installation can be completed, and the installation operation is simple and the installation difficulty is low.

[0059] See also Figure 4 In one embodiment, the connecting column 33 comprises:

[0060] A connector 331, the connector 331 is connected to the lock 34;

[0061] The two connecting arms 332 are arranged to be spaced apart in the transverse direction, the upper ends of the two connecting arms 332 are respectively placed on the opposite sides of the bottom of the connecting head 331, and the lower ends of the two connecting arms 332 are arranged separately. The outer side walls of the lower ends of the two connecting arms 332 are provided with a second limiting portion 3321, and the second limiting portion 3321 and the first connecting hole 22 can be slidably matched. Since the two connecting arms 332 are arranged to be spaced apart in the transverse direction, and the upper ends of the two connecting arms 332 are connected to form a whole through the connecting head 331 and the lower ends of the two connecting arms 332 are arranged separately, the two connecting arms 332 can move a certain distance in the direction of approaching each other, thereby reducing the outer diameter of the lower end of the connecting column 33, and during assembly, the second limiting portion 3321 on the connecting column 33 can be easily inserted into the first connecting hole 22, so that the installation is more convenient. At the same time, since the second limiting portion 3321 and the first connecting hole 22 can be slidably matched, the second limiting portion 3321 slides along the first connecting hole 22 to guide the movement of the lock body 3, so that the lock body 3 moves more smoothly, thereby improving the smoothness of locking and unlocking.

[0062] See also Figure 2 and Figure 6 In one embodiment, the bottom of the lock head 34 has a positioning groove 341 and a threaded hole 342, and the threaded hole 342 is located on the bottom of the positioning groove 341;

[0063] At least the upper end of the connector 331 is matched with the positioning groove 341, and the connector 331 has a through hole 3311;

[0064] The lock body 3 further includes a first fastener (not shown in the figure), the head of the first fastener abuts against the bottom of the connector 331, and the stem of the first fastener is sequentially penetrated by a through hole 3311 and a threaded hole 342 and is screwed to the threaded hole 342;

[0065] An operation area is formed between the two connecting arms 332, and the operation area is used for the first fastener to be installed on the lock head 34. In this way, the positioning groove 341 and the connecting head 331 can be used to cooperate to play an installation positioning role, so that the through hole 3311 and the threaded hole 342 are quickly aligned. At the same time, since the threaded hole 342 is located at the bottom of the lock head 34 and on the bottom of the positioning groove 341, the first fastener can be hidden inside the lock head 34 to avoid the first fastener from being exposed, which can play a certain anti-rust role. At the same time, the sense of integration of the door lock is better and the appearance of the door lock can be improved. In addition, since the operation area is provided, the first fastener and tools such as screwdrivers can be passed through the operation area until the through hole 3311 and the threaded hole 342 are connected together, which makes installation more convenient.

[0066] See also Figure 2 In one embodiment, the first seat body 1 has a first positioning hole 12 and a second connecting hole 13. The first positioning hole 12 is vertically arranged. The first positioning hole 12 is used to cooperate with the first rod 41 on the door panel 4. The second connecting hole 13 is perpendicular to the first positioning hole 12. The second connecting hole 13 is connected to the first positioning hole 12 and passes through the outer wall of the first seat body 1. The second connecting hole 13 is used to cooperate with the rod portion of the second fastener. The second fastener connects the first seat body 1 and the first rod 41. In this way, the first rod 41 can be positioned by inserting the end of the first rod 41 into the first positioning hole 12. Then, the second fastener is used to connect the second connecting hole 13 and the threaded hole on the first rod 41 to fix the first seat body 1 on the first rod 41. Such a connection structure can increase the contact area between the first seat body 1 and the first rod 41, thereby enhancing the connection reliability between the first seat body 1 and the first rod 41, and is not prone to loosening or falling off. The structural reliability is higher, and the first seat body 1 can be reliably fixed to the door panel 4.

[0067] The second base body 2 has a second positioning hole 24 and a third connecting hole 25. The second positioning hole 24 is vertically arranged. The second positioning hole 24 is used to cooperate with the second rod 5 on the fence main body. The third connecting hole 25 is perpendicular to the second positioning hole 24. The third connecting hole 25 is connected to the second positioning hole 24 and passes through the outer side wall of the second base body 2. The third connecting hole 25 is used to cooperate with the rod portion of the third fastener. The third fastener connects the second base body 2 and the second rod 5. In this way, the second rod 5 can be positioned by inserting the end of the second rod 5 into the second positioning hole 24. The third fastener is then used to connect the third connecting hole 25 and the threaded hole on the second rod 5 to fix the second base body 2 on the second rod 5. Such a connection structure can increase the contact area between the second base body 2 and the second rod 5, thereby enhancing the connection reliability of the second base body 2 and the second rod 5, making it less likely to loosen or fall off. The structural reliability is higher, and the second base body 2 can be reliably fixed to the fence main body.

[0068] See also Figure 2In one embodiment, the first seat body 1 further has a third positioning hole 14 and a fourth connecting hole 15. The third positioning hole 14 is arranged horizontally. The third positioning hole 14 is used to cooperate with the third rod 42 on the door panel 4. The fourth connecting hole 15 is perpendicular to the third positioning hole 14. The fourth connecting hole 15 is connected to the third positioning hole 14 and passes through the outer side wall of the first seat body 1. The fourth connecting hole 15 is used to cooperate with the rod portion of the fourth fastener. The fourth fastener connects the first seat body 1 and the third rod 42. In this way, by inserting the end of the third rod 42 into the third positioning hole 14, the third rod 42 can be fastened. The rod 42 is positioned, and then the fourth fastener is used to connect the second connecting hole 13 and the threaded hole on the third rod 42, so that the first base body 1 can be fixed to the third rod 42. Such a connection structure can increase the contact area between the first base body 1 and the third rod 42, thereby enhancing the connection reliability between the first base body 1 and the third rod 42, making it less likely to loosen or fall off, and having higher structural reliability. At the same time, the first base body 1 can be used to connect the adjacent first rod 41 and third rod 42, so that the first base body 1 can be reliably fixed to the door panel 4, and having higher structural reliability.

[0069] A preferred embodiment of the utility model provides a fence, including a fence body, a door panel 4 and the above-mentioned door lock, the fence body is connected to the second seat body 2, the fence body has a doorway, the door panel 4 is rotatably provided on the fence body, and the door panel 4 can open or close the doorway, the door panel 4 is connected to the first seat body 1, so that the door panel 4 can be reliably locked to the fence body through the door lock, so that the doorway can be reliably closed by the door panel 4.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0071] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0072] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. Door lock, characterized in that, include: A first seat body, the first seat body is used to be connected to the door panel, and the first seat body is provided with a first locking portion; A second seat body, the second seat body is used to connect with the fence body; A lock body, wherein the lock body is movably arranged on the second seat body up and down, and the lock body is provided with a second locking portion, the second locking portion has a locked state that cooperates with the first locking portion and an unlocked state that disengages from the first locking portion, the second locking portion switches between the locked state and the unlocked state as the lock body moves up and down, and when the second locking portion is in the locked state, the first seat body is restricted from moving forward and backward.

2. The door lock according to claim 1, characterized in that: One of the first locking portion and the second locking portion includes a locking protrusion, and the other includes a locking groove, and the locking groove and the locking protrusion cooperate with each other.

3. The door lock according to claim 1, characterized in that: The second seat body is also provided with a first positioning portion; The lock body is further provided with a second positioning portion. When the second locking portion is in the locked state, the second positioning portion cooperates with the first positioning portion to limit the first locking portion from moving downward relative to the second locking portion.

4. The door lock according to claim 1, characterized in that: The second seat body is provided with a first connecting hole; The lock body is provided with a connecting column, and the connecting column is inserted into the first connecting hole so as to be movable up and down.

5. The door lock according to claim 4, characterized in that: The second seat body is further provided with a first limiting portion, and the first limiting portion is located on one side close to the upper end of the first connecting hole; The lock body is further provided with a second limiting portion, which is located on one side close to the lower end of the connecting column. The second limiting portion can abut against the first limiting portion to limit the connecting column from upwardly separating from the first connecting hole.

6. The door lock according to claim 5, characterized in that: The lower end of the first connection hole passes through the bottom wall of the second seat body, and the lower end of the first connection hole is capable of allowing the second limiting portion to move in and out of the first connection hole; The lock body is further provided with a lock head, which is located outside the second seat body and provided with the second locking portion. The lock head and the connecting column are separately arranged.

7. The door lock according to claim 6, characterized in that: The connecting column comprises: A connector, the connector being connected to the locking head; Two connecting arms, the two connecting arms are arranged laterally apart, the upper ends of the two connecting arms are respectively placed on the opposite sides of the bottom of the connecting head, the lower ends of the two connecting arms are arranged separately, and the outer side walls of the lower ends of the two connecting arms are provided with the second limiting part, and the second limiting part and the first connecting hole can be slidably matched.

8. The door lock according to claim 1, characterized in that: The first seat body has a first positioning hole and a second connecting hole, the first positioning hole is vertically arranged, the first positioning hole is used to cooperate with the first rod member on the door plate, the second connecting hole is perpendicular to the first positioning hole, the second connecting hole is connected to the first positioning hole and passes through the outer side wall of the first seat body, the second connecting hole is used to cooperate with the rod portion of the second fastener, and the second fastener connects the first seat body and the first rod member; The second seat body has a second positioning hole and a third connecting hole. The second positioning hole is vertically arranged. The second positioning hole is used to cooperate with the second rod on the fence body. The third connecting hole is perpendicular to the second positioning hole. The third connecting hole is connected to the second positioning hole and passes through the outer side wall of the second seat body. The third connecting hole is used to cooperate with the rod part of the third fastener. The third fastener connects the second seat body and the second rod.

9. The door lock according to claim 8, characterized in that: The first seat body also has a third positioning hole and a fourth connecting hole, the third positioning hole is arranged horizontally, the third positioning hole is used to cooperate with the third rod on the door panel, the fourth connecting hole is perpendicular to the third positioning hole, the fourth connecting hole is connected to the third positioning hole and passes through the outer side wall of the first seat body, the fourth connecting hole is used to cooperate with the rod part of the fourth fastener, and the fourth fastener connects the first seat body and the third rod.

10. A fence, characterized in that A door lock comprising any one of claims 1-8.

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