Door lock structure
Through the linkage structure of the sleeve of the inner handle and the rotating shaft, the locking rod and the locking member are used to achieve a simplified anti-locking function, which solves the problem of complex existing door lock structure and realizes simple anti-locking operation and use of standard parts.
Patent Information
- Application Number
- CN202422222317.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-10
AI Technical Summary
The anti-lock structure of existing door locks is too complicated, which requires a special installation position and lock tongue body to be matched during installation, which increases the installation difficulty.
The sleeve of the inner handle is linked to the rotating shaft, and the anti-locking and unlocking are achieved through the cooperation of the locking rod and the locking member, simplifying the anti-locking structure so that it does not require additional installation positions and using common standard parts.
It has achieved simplified door lock structure and is easy to operate. The anti-lock structure is installed with the handle, reducing the installation height and complexity. The locking tongue body does not participate in the anti-lock structure and uses common standard parts.
Smart Images
Figure CN223075293U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of door locks, and particularly to a door lock structure. Background Art
[0002] The room door locks at home all include door handles outside and inside the door, and a lock tongue body arranged inside the door body and controlled by the door handles outside and inside the door. When the door lock is locked, it is necessary to cooperate with the anti-lock knob below the inner door handle and another set of locking devices inside the door to lock the lock tongue body, so that the outside door handle cannot unlock the lock body to open the door. The anti-lock structure of the above-mentioned door lock is too complex, resulting in the need to reserve a special installation position on the door lock to match the anti-lock structure during installation; and a special lock tongue body is required for matching. Summary of the Invention
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a door lock structure.
[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:
[0005] A door lock structure includes an outer handle and an inner handle respectively installed outside and inside the door. The outer handle and the inner handle are linked and rotated synchronously through a transmission rod. The inner handle includes an installation base Ⅰ and a handle Ⅰ. The installation base Ⅰ protrudes with a sleeve Ⅰ. A sleeve cavity Ⅰ matching the sleeve Ⅰ is provided on the back of the handle Ⅰ. A rotating shaft Ⅰ is arranged in the sleeve cavity Ⅰ. The handle Ⅰ sleevs the sleeve Ⅰ through the sleeve cavity Ⅰ. The rotating shaft Ⅰ penetrates into the sleeve Ⅰ to realize the rotational connection between the handle Ⅰ and the installation base Ⅰ. The rotating shaft Ⅰ has an inner cavity. The transmission rod penetrates into the inner cavity of the rotating shaft Ⅰ from the bottom to realize the transmission connection. A through sliding channel is provided on the side wall of the inner cavity. A locking member is installed in the sliding channel. The locking member can move along the sliding channel so that both ends can penetrate out to the outside of the rotating shaft Ⅰ or the inner side of the inner cavity. A card slot matching the locking member penetrating out of the rotating shaft Ⅰ is provided on the inner wall of the sleeve Ⅰ. A locking rod is also inserted into the inner cavity. One end of the locking rod penetrates out of the top of the rotating shaft Ⅰ and extends out to the outside of the handle Ⅰ to form an operating end, and the other end is arranged in the inner cavity to form a pushing end. A sunken clearance groove is provided on the surface of the pushing end. By pushing the operating end, the pushing end moves to push and press the locking member to penetrate out of the outside of the rotating shaft Ⅰ and engage in the card slot to limit the rotation of the rotating shaft Ⅰ, or, by pulling the operating end, the clearance groove is aligned with the inner port of the sliding channel to enable the locking member to retract to the inner side of the inner cavity so that the rotating shaft Ⅰ can rotate relative to the sleeve Ⅰ.
[0006] Two sliding channels are symmetrically arranged, and the locking member is arranged in each sliding channel. The pushing end is also provided with a clearance groove corresponding to the position of the locking member.
[0007] The clearance groove is an annular groove provided on the surface of the pushing end in a ring shape.
[0008] There are two positioning grooves along the moving direction on the locking rod. A snap structure is also installed on the side wall of the rotating shaft I and cooperates with the positioning grooves. The cooperation of the snap structure with one of the positioning grooves means that the locking part is pushed out of the outer side of the rotating shaft I and snapped into the card slot, and the cooperation of the snap structure with the other positioning groove means that the locking part can retract to the inner side of the inner cavity.
[0009] The rotating shaft I is inserted into the sleeve cavity I in a split structure; the rotating shaft I penetrates into the sleeve I from the back of the mounting base I and passes through the sleeve I and is inserted into the limiting hole I in the sleeve cavity I for limiting connection. There is a ring platform I at the bottom of the rotating shaft I that abuts against the bottom of the sleeve I; the snap structure passes through the side wall of the sleeve cavity I and the rotating shaft I.
[0010] The operating end and the pushing end are connected to the locking rod in an assembled form.
[0011] The transmission rod penetrates into the inner cavity of the rotating shaft I and is provided with a ball structure. The ball structure includes balls that penetrate horizontally out of the inner cavity. The inner wall of the sleeve I is provided with limiting grooves that cooperate with the balls. There are more than two limiting grooves, and the limiting grooves are arranged circumferentially along the inner wall of the sleeve I.
[0012] The outer handle includes a mounting base II and a handle II. The mounting base II protrudes with a sleeve II. The back of the handle II is provided with a sleeve cavity II that cooperates with the sleeve II. A rotating shaft II is arranged in the sleeve cavity II. The handle II sleevs the sleeve II through the sleeve cavity II. The rotating shaft II penetrates into the sleeve II to realize the rotational connection between the handle II and the mounting base II; the rotating shaft II has an inner cavity, and the transmission rod penetrates into the inner cavity of the rotating shaft II from the bottom to realize the transmission connection.
[0013] An unlocking rod is inserted into the rotating shaft II. One end of the unlocking rod penetrates out of the top of the rotating shaft II and extends all the way to the surface of the handle II, and the other end abuts against the end of the transmission rod. The other end of the transmission rod abuts against the bottom of the locking rod.
[0014] The rotating shaft II is inserted into the sleeve cavity II in a split structure; the rotating shaft II penetrates into the sleeve II from the back of the mounting base II and passes through the sleeve II and is inserted into the limiting hole II in the sleeve cavity II for limiting connection. There is a ring platform II at the bottom of the rotating shaft II that abuts against the bottom of the sleeve II; a fixing pin is inserted horizontally into the sleeve cavity II, and the fixing pin passes through the side wall of the sleeve cavity II and the rotating shaft II.
[0015] The beneficial effects of the present utility model are as follows: The inner handle located inside the door of the present utility model is nested and fitted with the sleeve I of the mounting base I through the sleeve cavity I of the handle I, and the rotation connection is realized by inserting the rotation shaft I in the sleeve cavity I into the sleeve I. Such a cooperation reduces the installation height between the handle I and the mounting base I, and arranges the anti-lock structure by utilizing the assembly relationship between the rotation shaft I and the sleeve I. The anti-lock structure consists of a locking member and a locking rod in the inner cavity of the rotation shaft I. By moving the pushing end of the locking rod to push and press the locking member out of the outer side of the rotation shaft I and into the card slot, the rotation of the rotation shaft I is restricted, thereby realizing the locking of the handle I and anti-locking from inside the door. Unlocking is achieved by aligning the clearance groove of the moving pushing end with the inner port of the sliding channel, enabling the locking member to retract to the inner side of the inner cavity so that the rotation shaft I can rotate relative to the sleeve I, and enabling the handle I to be unlocked and rotated again, realizing the unlocking of the door lock. The above anti-lock structure does not require an additional installation position, and it is installed together with the handle. Unlocking and locking can be achieved by operating the locking rod, and the operation is simple and effective. Moreover, since the lock tongue body of the door lock does not participate in the cooperation of the anti-lock structure, only common standard parts are required, and the structure is simpler. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0017] Figure 1 is a schematic structural diagram of the present utility model;
[0018] Figure 2 is an exploded schematic diagram of the present utility model;
[0019] Figure 3 is a cross-sectional view of the present utility model;
[0020] Figure 4 is a schematic structural diagram of the locking rod of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Refer to Figures 1 to 4 a door lock structure, which includes an outer handle 1 and an inner handle 2 respectively installed outside and inside the door, and the outer handle 1 and the inner handle 2 are linked and rotated synchronously through a transmission rod 3.
[0022] The inner handle 2 includes a mounting base I 21 and a handle I 22. The mounting base I 21 protrudes with a sleeve I 211. The back of the handle I 22 is provided with a sleeve cavity I 221 that cooperates with the sleeve I 211. A rotation shaft I 222 is provided in the sleeve cavity I 221. The handle I 22 sleevs the sleeve I 211 through the sleeve cavity I 221, and the rotation shaft I 222 penetrates into the sleeve I 211 to realize the rotational connection between the handle I 22 and the mounting base I 21. Such a cooperation reduces the installation height between the handle I 22 and the mounting base I 21, and arranges the anti-lock structure by utilizing the assembly relationship between the rotation shaft I 222 and the sleeve I 211.
[0023] The rotating shaft I 222 has an inner cavity, and the transmission rod 3 penetrates into the inner cavity of the rotating shaft I 222 from the bottom to realize the transmission connection; the side wall of the inner cavity is provided with a penetrating sliding channel 224, and a locking member 225 is installed in the sliding channel 224. The locking member 225 can move along the sliding channel 224 so that both ends can pass out to the outside of the rotating shaft I 222 or the inside of the inner cavity. The inner wall of the sleeve I 211 is provided with a groove 212 that cooperates with the locking member 225 that passes through the rotating shaft I 222. A locking rod 23 is also penetrated in the inner cavity, and one end of the locking rod 23 passes through the top of the rotating shaft I 222 and continues to pass out to the outside of the handle I 22 to form an operation The push end 231 is provided with a push stop end 232 on the surface of which a recessed avoidance groove 233 is provided. By pushing the operating end 231, the push stop end 232 moves the push-pressing stop member 225 to pass through the outer side of the rotating shaft I 222 and snap into the snap groove 212 to limit the rotation of the rotating shaft I 222, that is, to limit the rotation of the handle I 22 so as to achieve the reverse locking inside the door; or; pulling the operating end 231 so that the avoidance groove 233 is aligned with the inner side port of the sliding channel 224 so that the stop member 225 can retreat to the inner side of the inner cavity so that the rotating shaft I 222 can rotate relative to the sleeve I 211, that is, the handle I 22 is released from the reverse locking and can be rotated to open the door.
[0024] As a preferred embodiment, the sliding channels 224 are symmetrically arranged at two locations, each of which is provided with the locking member 225, and the push end 232 is also provided with a clearance groove 233 corresponding to the position of the locking member 225. The locking members 225 at the two relative locations cooperate with the two locking grooves 212 in the sleeve I 211 to make the reverse locking restriction of the handle more stable; further, the clearance groove 233 is an annular groove arranged on the surface of the push end 232, and the area of the annular groove is larger, which is more conducive to the retraction action of the locking member 225. Preferably, two positioning grooves 234 are provided on the locking rod 23 along the moving direction, and the side wall of the rotating shaft I 222 is also equipped with a spring-lock structure 24 that cooperates with the positioning groove 234. The spring-lock structure 24 cooperates with one of the positioning grooves 234 to represent that the locking member 225 is pushed out of the outer side of the rotating shaft I 222 and is inserted into the slot 212, which indicates that the door lock is locked; the spring-lock structure 24 cooperates with the other positioning groove 234 to represent that the locking member 225 can be retracted to the inner side of the inner cavity, which indicates that the door lock is in an unlockable state; and a torque can be applied through the two positioning grooves 234 and the spring-lock structure 24 to maintain the locked state and the unlocked state.
[0025] Preferably, the rotating shaft I 222 is inserted into the sleeve cavity I 221 in a split structure; the rotating shaft I 222 penetrates into the sleeve I 211 from the back of the mounting base I 21, and passes through the sleeve I 211 and is inserted into the limiting hole I 226 in the sleeve cavity I 221 for limiting connection. A ring platform I 227 is provided at the bottom of the rotating shaft I 222 and abuts against the bottom of the sleeve I 211. That is, while connecting the rotating shaft I 222 with the sleeve cavity I 221, the assembly of the handle I 22 and the mounting base I 21 is realized; the snap structure 24 passes through the side wall of the sleeve cavity I 221 and the rotating shaft I 222. When arranging the snap structure 24, the rotating shaft I 222 is fixed at the same time, making the rotating shaft I 222 the core rotating component of the handle I 22 and the mounting base I 21, and also the connection main body for their relative assembly. Further, the operating end 231 and the pushing end 232 on the locking rod 23 are connected to the locking rod 23 in an assembled form. That is, the locking rod 23 is divided into three parts: the operating end 231, the rod body, and the pushing end 232. The three are preferably thread-connected. At this time, a slotted screwdriver head is provided at the bottom of the pushing end 232, which is more conducive to realizing the assembly of the locking rod 23 and the handle 2 and reducing the processing difficulty of its own components.
[0026] Preferably, the transmission rod 3 penetrates into the inner cavity of the rotating shaft I 222 and is provided with a ball structure 4. The ball structure 4 includes balls 41 that penetrate out of the inner cavity horizontally. The inner wall of the sleeve I 211 is provided with limiting grooves 213 that cooperate with the balls 41. There are more than two limiting grooves 213, and the limiting grooves 213 are arranged circumferentially along the inner wall of the sleeve I 211. The limiting points formed by each limiting groove 213 define the rotation angle prompt positions of the handle I 22. The cooperation of the balls 41 and the limiting grooves 213 can form a stop position to indicate the unlocked or locked state of the door lock body, so that the user can clearly know that the handle I 22 rotates in place and realizes unlocking or locking.
[0027] The outer handle 1 includes a mounting base II 11 and a handle II 12. The mounting base II 11 protrudes with a sleeve II 111. The back of the handle II 12 is provided with a sleeve cavity II 121 that cooperates with the sleeve II 111. A rotating shaft II 122 is provided in the sleeve cavity II 121. The handle II 12 sleeved the sleeve II 111 through the sleeve cavity II 121. The rotating shaft II 122 penetrates into the sleeve II 111 to realize the rotational connection between the handle II 12 and the mounting base II 11; the rotating shaft II 122 has an inner cavity, and the transmission rod 3 penetrates into the inner cavity of the rotating shaft II 122 from the bottom to realize the transmission connection. Similarly, the cooperation of the sleeve cavity II 121 and the sleeve II 111 is used to reduce the installation height between the handle II 12 and the mounting base II 11.
[0028] As a preferred solution, an unlocking rod 13 is inserted through the rotating shaft II 122. One end of the unlocking rod 13 passes through the top of the rotating shaft II 122 and extends all the way to the surface of the handle II 12, and the other end abuts against the end of the transmission rod 3. The other end of the transmission rod 3 abuts against the bottom of the locking rod 23. That is, even outside the door, the anti-lock state inside the door can be released through the unlocking rod 13. The end of the unlocking rod 13 is flush with the surface of the handle II 12, and careful observation is required to operate the unlocking rod 13.
[0029] Preferably, the rotating shaft II 122 is also inserted into the sleeve cavity II 121 in a split structure. The specific connection structure is the same as that of the above-mentioned rotating shaft I 222, and will not be described in detail again. However, the rotating shaft II 122 is fixed by a fixing pin 14 that penetrates horizontally into the sleeve cavity II 121, and the fixing pin 14 passes through the side wall of the sleeve cavity II 121 and the rotating shaft II 122.
[0030] The utility model simplifies the handle structure and enables the anti-lock structure to require no additional installation position. It is installed together with the handle. Unlocking and locking can be achieved by operating the locking rod 23, and the operation is simple and effective. Moreover, since the lock tongue body of the door lock does not participate in the cooperation of the anti-lock structure, only common standard parts need to be equipped, and the structure is simpler.
Claims
1. A door lock structure, comprising an outer handle (1) and an inner handle (2) respectively installed outside and inside the door. The outer handle (1) and the inner handle (2) are linked and rotated synchronously through a transmission rod (3). It is characterized in that: The inner handle (2) includes an installation base I (21) and a handle I (22). The installation base I (21) protrudes with a sleeve I (211). A sleeve cavity I (221) matching the sleeve I (211) is provided on the back of the handle I (22). A rotating shaft I (222) is provided in the sleeve cavity I (221). The handle I (22) sleevs the sleeve I (211) through the sleeve cavity I (221). The rotating shaft I (222) penetrates into the sleeve I (211) to realize the rotational connection between the handle I (22) and the installation base I (21); The rotating shaft I (222) has an inner cavity. The transmission rod (3) penetrates into the inner cavity of the rotating shaft I (222) from the bottom to realize the transmission connection. A through sliding channel (224) is provided on the side wall of the inner cavity. A locking member (225) is installed in the sliding channel (224). The locking member (225) can move along the sliding channel (224) so that both ends can penetrate to the outside of the rotating shaft I (222) or the inside of the inner cavity. A clamping groove (212) matching the locking member (225) penetrating out of the rotating shaft I (222) is provided on the inner wall of the sleeve I (211). A locking rod (23) is also inserted into the inner cavity. One end of the locking rod (23) penetrates out of the top of the rotating shaft I (222) and extends out of the handle I (22) to form an operating end (231), and the other end is arranged in the inner cavity to form a pushing end (232). A sunken clearance groove (233) is provided on the surface of the pushing end (232). By pushing the operating end (231), the pushing end (232) moves to push and press the locking member (225) to penetrate out of the outside of the rotating shaft I (222) and snap into the clamping groove (212) to limit the rotation of the rotating shaft I (222), or, by pulling the operating end (231), the clearance groove (233) is aligned with the inner port of the sliding channel (224) to enable the locking member (225) to retract to the inside of the inner cavity so that the rotating shaft I (222) can rotate relative to the sleeve I (211).
2. The door lock structure according to claim 1, wherein: Two sliding channels (224) are symmetrically arranged. Each sliding channel (224) is provided with the locking member (225). The pushing end (232) is also provided with a clearance groove (233) corresponding to the position of the locking member (225).
3. The door lock structure according to claim 2, characterized in that: The clearance groove (233) is an annular groove provided on the surface of the pushing end (232).
4. The door lock structure according to claim 1, characterized in that: Two positioning grooves (234) are provided on the locking rod (23) along the moving direction. An elastic buckle structure (24) is also installed on the side wall of the rotating shaft I (222) to cooperate with the positioning grooves (234). The cooperation between the elastic buckle structure (24) and one of the positioning grooves (234) represents that the locking member (225) is pushed out of the outside of the rotating shaft I (222) and snapped into the clamping groove (212), and the cooperation between the elastic buckle structure (24) and the other positioning groove (234) represents that the locking member (225) can retract to the inside of the inner cavity.
5. The door lock structure according to claim 4, characterized in that: The rotating shaft I (222) is inserted into the sleeve cavity I (221) in a split structure; the rotating shaft I (222) penetrates from the back of the mounting base I (21) into the sleeve I (211), and passes through the sleeve I (211) and is inserted into the limiting hole I (226) in the sleeve cavity I (221) for limiting connection. A ring platform I (227) is provided at the bottom of the rotating shaft I (222) and abuts against the bottom of the sleeve I (211); the snap structure (24) passes through the side wall of the sleeve cavity I (221) and the rotating shaft I (222).
6. The door lock structure according to any one of claims 1 to 5, characterized in that: The operating end (231) and the pushing stop end (232) are connected to the locking rod (23) in an assembled form.
7. The door lock structure according to claim 1, characterized in that: The transmission rod (3) penetrates into the inner cavity of the rotating shaft I (222) and is provided with a ball structure (4). The ball structure (4) includes balls (41) that penetrate laterally out of the inner cavity. Limiting grooves (213) are provided on the inner wall of the sleeve I (211) and cooperate with the balls (41). There are more than two limiting grooves (213), and the limiting grooves (213) are arranged circumferentially along the inner wall of the sleeve I (211).
8. The door lock structure according to claim 1, characterized in that: The outer handle (1) includes a mounting base II (11) and a handle II (12). The mounting base II (11) protrudes with a sleeve II (111). A sleeve cavity II (121) that cooperates with the sleeve II (111) is provided on the back of the handle II (12). A rotating shaft II (122) is provided in the sleeve cavity II (121). The handle II (12) sleevs the sleeve II (111) through the sleeve cavity II (121), and the rotating shaft II (122) penetrates into the sleeve II (111) to realize the rotational connection between the handle II (12) and the mounting base II (11); the rotating shaft II (122) has an inner cavity, and the transmission rod (3) penetrates into the inner cavity of the rotating shaft II (122) from the bottom to realize the transmission connection.
9. The door lock structure according to claim 8, characterized in that: An unlocking rod (13) is inserted into the rotating shaft II (122). One end of the unlocking rod (13) penetrates out of the top of the rotating shaft II (122) and extends all the way to the surface of the handle II (12), and the other end abuts against the end of the transmission rod (3). The other end of the transmission rod (3) abuts against the bottom of the locking rod (23).
10. The door lock structure according to claim 8, wherein: The rotating shaft II (122) is inserted into the sleeve cavity II (121) in a split structure; the rotating shaft II (122) penetrates from the back of the mounting base II (11) into the sleeve II (111), and passes through the sleeve II (111) and is inserted into the limiting hole II (123) in the sleeve cavity II (121) for limiting connection. A ring platform II (124) is provided at the bottom of the rotating shaft II (122) and abuts against the bottom of the sleeve II (111); a fixing pin (14) penetrates horizontally into the sleeve cavity II (121), and the fixing pin (14) passes through the side wall of the sleeve cavity II (121) and the rotating shaft II (122).