Lock body and door lock
By installing protective components at the square shaft hole of the lock body, and using the protective cover to block and rotate, the safety hazards of brute force cracking of the lock body are solved and effective protection effects are achieved.
Patent Information
- Application Number
- CN202421625478.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-07-10
AI Technical Summary
When the existing door lock is brutally cracked, the square shaft hole position of the lock body is easily exposed, resulting in safety hazards for mechanical lock unlocking.
Install protective components at the square shaft hole of the lock body, including a pin, a protective cover and a limiting member. The protective cover blocks the square shaft hole and is rotatable to prevent the tool from rotating the toggle.
Effectively prevent illegal activists from unlocking locks through violent means, improving the safety of the lock body.
Smart Images
Figure CN223075297U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, in particular to a lock body and a door lock. Background Art
[0002] Existing door locks are mainly composed of three parts: the front panel, the rear panel and the lock body. After successful recognition using legal permissions such as face, fingerprint, password, etc., the lock tongue of the lock body is driven to retract through the transmission mechanism between the front and rear panels and the lock body, thereby realizing the door lock. The lock body of the door lock is installed inside the door body, and the front and rear panels of the door lock are installed on the outside and inside of the door body respectively. Holes are opened at specific positions of the door body to realize the installation connection or transmission connection between the lock body and the front and rear panels. The holes on the door body are generally standardized.
[0003] The mechanical transmission between the lock body and the front and rear panels is generally achieved through the square shaft hole position of the lock body or the lock core position, so the design of the lock body needs to take into account the unlocking functions of these two positions. The square shaft hole position of the lock body has an opening on the door body, and the lock core installation position also has an opening on the door body. For door locks that are mechanically unlocked through the lock core position, if the door is violently cracked by criminals outside and the entire front panel is violently pried open and the entire front panel is removed, the square shaft hole position of the lock body will be exposed, and the criminals can easily use tools to turn the square shaft block of the square shaft hole of the lock body, so as to retract the lock tongue of the lock body and crack the door open, which poses a safety hazard of violent cracking. Utility Model Content
[0004] In order to solve the above technical problem or at least partially solve the above technical problem, the utility model provides a lock body and a lock.
[0005] The first aspect of the utility model provides a lock body, comprising:
[0006] A lock body, wherein the lock body is provided with a toggle member, and the toggle member is provided with a square shaft hole reserved for installing a square shaft;
[0007] A protection component is installed at the square shaft hole, the protection component comprises a pin shaft, a protection cover and a limiter, the protection cover is connected to one end of the pin shaft along the axial direction, and the limiter is arranged on the side of the pin shaft;
[0008] The pin shaft is inserted into the square shaft hole, the protective cover is located on the outside of the square shaft hole and blocks the square shaft hole, the limiting member cooperates with the lock body to limit the pin shaft from escaping from the square shaft hole, and at least the protective cover in the protective assembly is configured to be rotatable relative to the square shaft hole.
[0009] The lock body provided by the utility model has a square shaft hole reserved for installing a square shaft on the toggle piece. In this way, when mechanical unlocking needs to be achieved through the square shaft hole position, the square shaft or a component similar to a square shaft can be inserted into the reserved square shaft hole, and the toggle piece can be driven to rotate by rotating the square shaft to unlock the lock. For a lock body that does not need to be mechanically unlocked through the square shaft hole position, the utility model embodiment installs a protective component at the square shaft hole to use the protective cover of the protective component to cover the square shaft hole to avoid the square shaft hole position being exposed to the outside. At the same time, at least the protective cover in the protective component is configured to be rotatable relative to the square shaft hole, that is, at least the protective cover can rotate relative to the square shaft hole. In this way, when an offender attempts to drill the protective cover with a tool to crack the door, the protective cover will rotate relative to the square shaft hole, that is, the protective cover will idle, and will not drive the toggle piece provided with the square shaft hole to rotate, thereby avoiding the toggle piece being rotated to unlock the door, thereby effectively resisting the violent cracking of the offender and playing an effective protective role.
[0010] In some embodiments, the pin shaft is a square shaft that matches the shape of the square shaft hole, and the protective cover is rotatably connected to one end of the pin shaft along the axial direction.
[0011] In some embodiments, a rotating shaft is connected between the protective cover and one end of the pin shaft along the axial direction, and at least one of the protective cover and the pin shaft is rotatably connected to the rotating shaft.
[0012] In some embodiments, a first groove is provided on the end surface of the pin shaft facing the protective cover, and a first convex ring is provided on the outer peripheral surface of one end of the rotating shaft along the axial direction, and the first convex ring is limited in the first groove;
[0013] And / or, a second groove is provided on the surface of the protective cover on the side facing the pin shaft, and a second convex ring is provided on the outer peripheral surface of the other end of the rotating shaft along the axial direction, and the second convex ring is limited in the second groove.
[0014] In some embodiments, the notch of the first groove is formed as a first circular notch, and the diameter of the first circular notch is smaller than the diameter of the first convex ring and larger than the diameter of the rotating shaft;
[0015] And / or, the notch of the second groove is formed as a second circular notch, and the diameter of the second circular notch is smaller than the diameter of the second convex ring and larger than the diameter of the rotating shaft.
[0016] In some embodiments, the pin shaft is a round shaft, the diameter of the pin shaft is smaller than the side length of the square shaft hole, and the protective cover is fixedly connected or rotatably connected to one end of the pin shaft along the axial direction.
[0017] In some embodiments, a surface of one side of the protective cover facing the pin shaft is formed into a plane;
[0018] And / or, a side surface of the protective cover facing away from the pin shaft is formed as an arc surface.
[0019] In some embodiments, the limiting member includes a pin and an elastic member;
[0020] A limiting groove is provided on a side surface of an end portion of the pin shaft away from the protective cover. The pin and the elastic member are both disposed in the limiting groove, and the elastic member is supported between the pin and a bottom wall of the limiting groove. The pin extends out of the limiting groove under the elastic force of the elastic member and abuts against and limits the inner side surface of the lock body.
[0021] In some embodiments, a limiting protrusion is provided on an outer peripheral surface of the pin. The limiting protrusion is provided at a middle portion of the pin in the axial direction. The limiting protrusion and an end portion of the pin in the axial direction are limited in the limiting groove;
[0022] The elastic member is a spring. The spring is sleeved on an end portion of the pin in the axial direction, and the spring abuts against the bottom wall of the limiting groove. The other end portion of the pin in the axial direction extends out of the limiting groove under the elastic force of the spring.
[0023] A second aspect of the present utility model provides a door lock, including a front panel, a rear panel, and a lock body as described in any one of the above embodiments;
[0024] The lock body has an inner side and an outer side disposed opposite to each other. The front panel is installed on the outer side of the lock body, and the rear panel is installed on the inner side of the lock body. Description of the Drawings
[0025] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present utility model, and are used together with the specification to explain the principles of the present utility model.
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0027] Figure 1 A three-dimensional structural diagram of the lock body according to an embodiment of the present utility model;
[0028] Figure 2 An exploded view of the lock body according to an embodiment of the present utility model from a first perspective;
[0029] Figure 3Explosion view of the lock body from the second perspective according to an embodiment of the present utility model;
[0030] Figure 4 Explosion view of the lock body from the third perspective according to an embodiment of the present utility model;
[0031] Figure 5 Front view structural schematic diagram of the lock body according to an embodiment of the present utility model;
[0032] Figure 6 Left view structural schematic diagram of the lock body according to an embodiment of the present utility model;
[0033] Figure 7 is Figure 5 Cross-sectional structural schematic diagram in the A-A direction in
[0034] Figure 8 is Figure 7 Partial enlarged structural schematic diagram of part B in
[0035] Figure 9 Explosion view of the protection component from the first perspective according to an embodiment of the present utility model;
[0036] Figure 10 Explosion view of the protection component from the second perspective according to an embodiment of the present utility model;
[0037] Figure 11 Explosion view of the protection component from the third perspective according to an embodiment of the present utility model;
[0038] Figure 12 Explosion view of the protection component from the fourth perspective according to an embodiment of the present utility model;
[0039] Figure 13 First perspective assembly structural schematic diagram of the lock body and the door body according to an embodiment of the present utility model;
[0040] Figure 14 Second perspective assembly structural schematic diagram of the lock body and the door body according to an embodiment of the present utility model;
[0041] Figure 15 is Figure 14 Cross-sectional structural schematic diagram in the C-C direction in
[0042] Figure 16 is Figure 15 Partial enlarged structural schematic diagram of part D in
[0043] Figure 17 First perspective assembly structural schematic diagram of the door lock and the door body according to an embodiment of the present utility model;
[0044] Figure 18Schematic diagram of the assembly structure of the door lock and the door body from a second perspective according to an embodiment of the present utility model;
[0045] Figure 19 is Figure 17 Schematic cross-sectional structure diagram in the direction of E-E in;
[0046] Figure 20 Exploded view of the protection component according to another embodiment of the present utility model.
[0047] Wherein, 1, lock main body; 11, lock body housing; 111, lock core installation hole; 12, toggle member; 121, square shaft hole; 122, outer end face; 123, inner end face; 13, lock tongue; 14, lock core installation screw; 15, sleeve; 16, connecting screw; 2, protection component; 21, pin shaft; 211, first groove; 212, limit groove; 22, protection cover; 221, second groove; 23, rotating shaft; 231, first convex ring; 232, second convex ring; 24, pin; 241, limit convex ring; 242, inner end portion; 243, outer end portion; 25, elastic member; 3, lock core; 4, front panel; 5, rear panel; 6, door body; 61, first opening; 62, second opening; 63, third opening; 64, fourth opening. Detailed implementation manners
[0048] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the solution of the present utility model will be further described below. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.
[0049] Many specific details are set forth in the following description in order to fully understand the present utility model, but the present utility model can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0050] Referring to Figures 1 to 16 As shown, a lock body provided by some embodiments of the present utility model includes a lock main body 1 and a protection component 2.
[0051] Wherein, the lock main body 1 may include components such as a lock body housing 11, a toggle member 12, and a lock tongue 13; a lock core installation hole 111 is provided on the lock body housing 11 for installing a lock core 3; a mechanical transmission mechanism may be provided inside the lock main body 1, and the lock main body 1 can be connected to the mechanical transmission mechanism inside the lock main body 1 through the toggle member 12 or the lock core 3 to realize the extension or retraction of the lock tongue 13, thereby realizing closing and locking or opening and unlocking the door.
[0052] Specifically, a square shaft hole 121 reserved for installing a square shaft is provided on the toggle member 12. The square shaft hole 121 can be used to insert a square shaft or a component similar to a square shaft. The cross section of the square shaft hole 121 is formed into a square shape that matches the cross section of the square shaft. When mechanical unlocking is required through the square shaft hole 121, a square shaft or a component similar to a square shaft can be inserted into the reserved square shaft hole 121, and the square shaft can be rotated to synchronously drive the toggle member 12 to rotate. The toggle member 12 drives the mechanical transmission mechanism inside the lock body 1, thereby driving the lock tongue 13 of the lock body 1 to extend or retract. In actual use, the toggle member 12 can also be called a square shaft toggle block. When mechanical unlocking is not required through the square shaft hole 121, the square shaft hole 121 does not need to be inserted with a square shaft or a component similar to a square shaft.
[0053] It should be understood that the lock body generally includes a lock core 3, a lock core mounting hole 111 is provided on the lock body shell 11, the lock core 3 is mounted in the lock core mounting hole 111, and the lock core 3 is reliably fixed in the lock core mounting hole 111 by the lock core mounting screw 14. After the key is inserted into the lock core 3, turning the key can drive the lock core 3 to rotate, thereby driving the mechanical transmission mechanism inside the lock body 1, thereby driving the lock tongue 13 of the lock body 1 to extend or retract.
[0054] For a lock body that does not require mechanical unlocking through the square shaft hole 121, the lock body provided by the embodiment of the utility model has a protective component 2 installed at the square shaft hole 121, so that the protective component 2 can be used to protect the square shaft hole 121 to prevent external brute force from breaking into the door.
[0055] Specifically, refer to Figures 1 to 8 As shown, the protection component 2 is installed at the square shaft hole 121, and the protection component 2 includes a pin shaft 21, a protection cover 22 and a limit piece. The protection cover 22 is connected to one end of the pin shaft 21 along the axial direction, and the limit piece is arranged on the side of the pin shaft 21; the pin shaft 21 is inserted into the square shaft hole 121, and the protection cover 22 is located on the outside of the square shaft hole 121 and blocks the square shaft hole 121. The limit piece cooperates with the lock body 1 to limit the pin shaft 21 from escaping from the square shaft hole 121, and at least the protection cover 22 in the protection component 2 is configured to be rotatable relative to the square shaft hole 121, that is, when the protection cover 22 is rotated, the protection cover 22 will rotate relative to the square shaft hole 121, and will not drive the toggle member 12 provided with the square shaft hole 121 to rotate. Refer to Figure 8 As shown, a1 in the figure represents the outer side of the lock body 1, and a2 represents the inner side of the lock body 1.
[0056] The lock body provided by the embodiment of the present utility model installs a protection component 2 at the square shaft hole 121 to use the protection cover 22 of the protection component 2 to block the square shaft hole 121 and prevent the position of the square shaft hole 121 from being exposed. At the same time, at least the protection cover 22 in the protection component 2 is configured to be rotatably arranged relative to the square shaft hole 121, that is, when the protection cover 22 is rotated, at least the protection cover 22 can rotate relative to the square shaft hole 121 without driving the toggle member 12 provided with the square shaft hole 121 to rotate. In this way, when a lawbreaker attempts to drill the protection cover 22 with a tool to crack it, the protection cover 22 will rotate relative to the square shaft hole 121, that is, the protection cover 22 will rotate idly without driving the toggle member 12 provided with the square shaft hole 121 to rotate, thereby preventing the toggle member 12 from being rotated to unlock, and effectively resisting the violent cracking of lawbreakers and playing an effective protection role.
[0057] To ensure that the protection component 2 has sufficient structural strength and reliability, all components of the protection component 2 can be made of metal parts; of course, other materials such as plastic parts with higher structural strength can also be selected according to needs.
[0058] It should be noted that in specific implementation, to ensure that the protection cover 22 does not drive the toggle member 12 to rotate when rotating, the rotation axis of the protection cover 22 can be set parallel to the axis of the square shaft hole 121. Further, the rotation axis of the protection cover 22 can be set to coincide with the axis of the square shaft hole 121. Specifically, the protection cover 22 rotates 360 degrees around the rotation axis and does not deviate from the position of the square shaft hole 121. In this way, no matter how the lawbreaker rotates the protection cover 22, it will not drive the toggle member 12 provided with the square shaft hole 121 to rotate, and thus it is impossible to unlock by rotating the toggle member 12.
[0059] During specific assembly, the end of the pin shaft 21 of the protection component 2 away from the protection cover 22 can be inserted into the square shaft hole 121 along the direction from the outside to the inside of the lock body (as shown by the horizontal left arrow in Figure 4 ). After being inserted in place, the protection cover 22 is located outside the square shaft hole 121 and blocks the square shaft hole 121 to use the protection cover 22 to limit the pin shaft 21 from continuing to move in the insertion direction. The limiting member provided on the side of the pin shaft 21 is in limit cooperation with the lock body 1 to limit the pin shaft 21 from disengaging in the opposite direction of the insertion direction, so as to realize limiting the protection component 2 in the square shaft hole 121 through the protection cover 22 and the limiting member.
[0060] After assembly, the protective cover 22 is located on the outside of the square shaft hole 121 and blocks the square shaft hole 121 to prevent the square shaft hole 121 from being exposed to the outside. At the same time, at least the protective cover 22 in the protective assembly 2 is configured to be rotatable relative to the square shaft hole 121, that is, at least the protective cover 22 can rotate relative to the square shaft hole 121. In specific implementation, the protective cover 22 can be set to be rotatably connected with the pin shaft 21, so that when the protective cover 22 is rotated, only the protective cover 22 rotates, and the pin shaft 21 connected to the protective cover 22 will not rotate with the protective cover 22, thereby not driving the toggle member 12 provided with the square shaft hole 121 to rotate, and then the lock cannot be opened by rotating the toggle member 12, thereby achieving the purpose of preventing violent cracking and playing an effective protective role; the protective cover 22 can also be set to be fixedly connected with the pin shaft 21, but the pin shaft 21 is required to be able to rotate in the square shaft hole 121, so that when the protective cover 22 is rotated, the protective cover 22 drives the pin shaft 21 to rotate together, and the pin shaft 21 rotates in the square shaft hole 121, but does not drive the toggle member 12 provided with the square shaft hole 121 to rotate, and then the lock cannot be opened by rotating the toggle member 12, thereby achieving the purpose of preventing external violent cracking and playing an effective protective role.
[0061] It should be noted that the lock body is usually a part of the door lock, which usually includes a front panel 4, a rear panel 5 and a lock body. During installation, the lock body is installed inside the door body 6, and the front panel 4 and rear panel 5 of the door lock are installed on the outside and inside of the door body 6 respectively. The front panel 4 and rear panel 5 are connected to the lock body through the lock core 3 of the lock body; at the same time, a protective component 2 is installed at the square shaft hole 121 to protect the square shaft hole 121 to prevent the door from being opened by external force.
[0062] In some embodiments, reference Figures 9 to 12 As shown, the pin 21 is a square shaft that matches the shape of the square shaft hole 121, and the protective cover 22 is rotatably connected to one end of the pin 21 along the axial direction. In this way, the pin 21 can be used to well block the square shaft hole 121, thereby effectively preventing lawbreakers from inserting tools into the square shaft hole 121 to violently unlock; the protective cover 22 is rotatably connected to one end of the pin 21 along the axial direction, so that when the protective cover 22 is rotated, only the protective cover 22 rotates, and the pin 21 connected to the protective cover 22 will not rotate with the protective cover 22, thereby not driving the toggle member 12 provided with the square shaft hole 121 to rotate, and then the toggle member 12 cannot be rotated to unlock, thereby achieving the purpose of preventing violent cracking and playing an effective protective role.
[0063] Continue to refer to Figures 9 to 12As shown, a rotating shaft 23 is connected between the protective cover 22 and one end of the pin 21 in the axial direction, and at least one of the protective cover 22 and the pin 21 is rotatably connected to the rotating shaft 23. Specifically, the pin 21 is connected to one end of the rotating shaft 23 in the axial direction, the protective cover 22 is connected to the other end of the rotating shaft 23 in the axial direction, and at least one of the pin 21 and the protective cover 22 is rotatably connected to the rotating shaft 23; that is, both the pin 21 and the protective cover 22 may be rotatably connected to the rotating shaft 23; or, one of the pin 21 and the protective cover 22 may be rotatably connected to the rotating shaft 23, and the other may be fixedly connected to the rotating shaft 23; these methods can all achieve the purpose of rotating the protective cover 22 around the rotating shaft 23, so that when the protective cover 22 rotates, it will not drive the pin 21 to rotate.
[0064] In a specific implementation, the axis of the rotating shaft 23 may be parallel to the axis of the pin shaft 21 . Furthermore, the axis of the rotating shaft 23 coincides with the axis of the pin shaft 21 , and the protective cover 22 may rotate 360 degrees around the rotating shaft 23 .
[0065] In some embodiments, reference Figures 9 to 12 As shown, a first groove 211 is provided on the end surface of the pin shaft 21 facing the protective cover 22, and a first convex ring 231 is provided on the outer peripheral surface of one end of the rotating shaft 23 along the axial direction, and the first convex ring 231 is limited in the first groove 211, so that the pin shaft 21 is connected to one end of the rotating shaft 23 along the axial direction; in a specific implementation, the first convex ring 231 can be rotatably arranged in the first groove 211, that is, the rotating shaft 23 is rotatably connected to the pin shaft 21; a second groove 221 is provided on the surface of the protective cover 22 on the side facing the pin shaft 21, and a second convex ring 232 is provided on the outer peripheral surface of the other end of the rotating shaft 23 along the axial direction, and the second convex ring 232 is limited in the second groove 221, so that the protective cover 22 is connected to the other end of the rotating shaft 23 along the axial direction; in a specific implementation, the second convex ring 232 can be rotatably arranged in the second groove 221, that is, the rotating shaft 23 is rotatably connected to the protective cover 22.
[0066] In this way, one end of the rotating shaft 23 along the axial direction is connected to the pin 21, and the other end of the rotating shaft 23 along the axial direction is connected to the protective cover 22; the rotating shaft 23 can rotate 360 degrees on the pin 21 without being separated, and the protective cover 22 can rotate 360 degrees with the rotating shaft 23 as the center line without being separated. In this way, the protective cover 22, the rotating shaft 23, and the pin 21 are connected as a whole. After the pin 21 is installed in the square shaft hole 121 of the toggle member 12, the protective cover 22 can rotate 360 degrees without being separated.
[0067] Continue to refer to Figures 9 to 12As shown, the notch of the first groove 211 is formed as a first circular notch, the diameter of the first circular notch is smaller than the diameter of the first convex ring 231, and larger than the diameter of the rotating shaft 23; thus arranged to limit the first convex ring 231 within the first groove 211, and the rotating shaft 23 can rotate 360 degrees on the pin shaft 21 without detachment. The notch of the second groove 221 is formed as a second circular notch, the diameter of the second circular notch is smaller than the diameter of the second convex ring 232, and larger than the diameter of the rotating shaft 23; thus arranged to limit the second convex ring 232 within the second groove 221, and the protective cover 22 can rotate 360 degrees around the rotating shaft 23 without detachment.
[0068] In a specific implementation, the connection between the rotating shaft 23 and the pin shaft 21 can be achieved by riveting. Specifically, the notch diameter of the first groove 211 can be set to be larger than the diameter of the first convex ring 231, and the depth of the first groove 211 is larger than the axial thickness of the first convex ring 231. One end of the rotating shaft 23 provided with the first convex ring 231 is inserted into the first groove 211, and then the notch position of the first groove 211 of the pin shaft 21 is pressed by a riveting process, so that the notch diameter of the first groove 211 gradually decreases to be smaller than the diameter of the first convex ring 231, thereby realizing the limitation of the first convex ring 231 within the first groove 211. And the notch diameter of the first groove 211 is larger than the diameter of the rotating shaft 23, so that the rotating shaft 23 can rotate relative to the pin shaft 21, and the first convex ring 231 can rotate within the first groove 211; correspondingly, the protective cover 22 and the rotating shaft 23 can also be rotationally connected by riveting, which will not be elaborated here.
[0069] It should be noted that the rotational connection between the protective cover 22 and one end of the pin shaft 21 along the axial direction is not limited to be achieved through the rotating shaft 23, and can also be achieved through other means such as setting bearings.
[0070] In some other embodiments, referring to Figure 20As shown, the pin shaft 21 is a circular shaft, and the diameter of the pin shaft 21 is smaller than the side length of the square shaft hole 121. The protective cover 22 is fixedly connected or rotatably connected to one end of the pin shaft 21 along the axial direction. With such a setting, since the diameter of the pin shaft 21 is smaller than the side length of the square shaft hole 121, the pin shaft 21 can rotate within the square shaft hole 121. In this case, the protective cover 22 can be fixedly connected to one end of the pin shaft 21 along the axial direction. In this way, when the protective cover 22 rotates, it can drive the pin shaft 21 to rotate together within the square shaft hole 121, without driving the toggle member 12 provided with the square shaft hole 121 to rotate, and thus it is impossible to unlock by rotating the toggle member 12. Specifically, the protective cover 22 and the pin shaft 21 can be directly welded, bonded, screwed, etc.; it is also possible to set the protective cover 22 to be rotatably connected to one end of the pin shaft 21 along the axial direction. In this way, when the protective cover 22 rotates, only the protective cover 22 rotates, without driving the pin shaft 21 to rotate together, and thus it is impossible to drive the toggle member 12 provided with the square shaft hole 121 to rotate, and thus it is impossible to unlock by rotating the toggle member 12. Specifically, the protective cover 22 and the pin shaft 21 can be rotatably connected through a rotating shaft 23.
[0071] In some embodiments, referring to Figures 9 to 12 As shown, one side surface of the protective cover 22 facing the pin shaft 21 is formed as a flat surface; with such a setting, after the pin shaft 21 is inserted into the square shaft hole 121, one side surface of the protective cover 22 facing the pin shaft 21 can form a limit by abutting against the outer side surface of the lock body; the side surface of the protective cover 22 facing away from the pin shaft 21 is formed as an arc surface to prevent violators from violently clamping the protective cover 22 to perform the unlocking action.
[0072] In some embodiments, referring to Figures 9 to 12 As shown, the limiting member includes a pin 24 and an elastic member 25; a limiting groove 212 is provided on the side surface of one end of the pin shaft 21 away from the protective cover 22. The pin 24 and the elastic member 25 are both arranged in the limiting groove 212, and the elastic member 25 is supported between the pin 24 and the bottom wall of the limiting groove 212. The pin 24 extends out of the limiting groove 212 under the elastic force of the elastic member 25 and abuts against and limits the inner side surface of the lock body 1. During specific assembly, referring to Figures 4 to 8 As shown, a pressing force is applied to the pin 24 so that the pin 24 retracts into the limiting groove 212 when being pressed. Then, the pin shaft 21 is passed through the square shaft hole 121 until the pin 24 passes out from the other side of the square shaft hole 121. Under the elastic force of the elastic member 25, the pin 24 will extend out of the limiting groove 212 and abut against and limit the inner side surface of the lock body 1, thereby restricting the pin shaft 21 from disengaging from the square shaft hole 121. Referring to Figure 8 As shown, a1 in the figure represents the outer side of the lock body 1, and a2 represents the inner side of the lock body 1.
[0073] Continuing to refer to Figures 9 to 12As shown, a limiting protrusion is provided on the outer peripheral surface of the pin 24. The limiting protrusion is provided at the middle part of the pin 24 along the axial direction. The limiting protrusion and one end part of the pin 24 along the axial direction are limited within the limiting groove 212; the elastic member 25 is a spring. The spring is sleeved on one end part of the pin 24 along the axial direction, and the spring abuts against the bottom wall of the limiting groove 212. The other end part of the pin 24 along the axial direction extends out of the limiting groove 212 under the elastic force of the spring.
[0074] Specifically, in the natural state, under the action of the elastic force of the spring, the outer end part 243 of the pin 24 will extend out of the side surface of the pin shaft 21. The limiting convex ring 241 in the middle of the pin 24 is limited inside the limiting groove 212 of the pin shaft 21 to prevent the pin 24 from coming out; the inner end part 242 of the pin 24 sleeves the spring to ensure that the spring does not shift. Press down the outer end part 243 of the pin 24, and the outer end part 243 of the pin 24 can move towards the inside direction of the side surface of the pin shaft 21, so that the outer end part 243 of the pin 24 does not protrude, and the outer end part 243 of the pin 24 is flush with the side surface of the pin shaft 21, thereby facilitating the smooth insertion of the pin shaft 21 into the square shaft hole 121. After the pressing force is removed, under the action of the elastic force of the spring, the outer end part 243 of the pin 24 will extend out of the side surface of the pin shaft 21 again. In this way, when the pin 24 passes through from the other side of the square shaft hole 121, under the action of the elastic force of the spring, the pin 24 will extend out of the limiting groove 212 and abut against and be limited by the inner side surface of the lock body 1, thereby restricting the pin shaft 21 from coming out of the square shaft hole 121.
[0075] In a specific embodiment, referring to Figures 9 to 12 As shown, the protection assembly 2 is composed of a pin shaft 21, a protection cover 22, a rotating shaft 23, a pin 24 and a spring as a whole. To ensure sufficient strength and reliability, each component of the protection assembly 2 can be made of metal parts. The protection assembly 2 is installed in the square shaft hole 121. When installing, it is installed from the outside of the door of the lock body towards the inside of the door.
[0076] Specifically, the pin shaft 21 can be a rectangular parallelepiped column with a square cross-section. A pin 24 and a spring are installed on the side surface of one end of the pin shaft 21 on the inner side of the door. In the natural state, under the action of the elastic force of the spring, the outer end part 243 of the pin 24 will extend out of the side surface of the pin shaft 21. The limiting convex ring 241 in the middle of the pin 24 is limited inside the limiting groove 212 of the pin shaft 21 to prevent the pin 24 from coming out. The inner end part 242 of the pin 24 sleeves the spring to ensure that the spring does not shift. Press down the outer end part 243 of the pin 24, and the outer end part 243 of the pin 24 can move towards the inside direction of the side surface of the pin shaft 21, so that the outer end part 243 of the pin 24 does not protrude, and the outer end part 243 of the pin 24 is flush with the side surface of the pin shaft 21. After the pressing force is removed, under the action of the elastic force of the spring, the outer end part 243 of the pin 24 will extend out of the side surface of the pin shaft 21 again.
[0077] One side surface of the protective cover 22 connected to the rotating shaft 23 is flat, and the other side surface, i.e., the outer side surface, is arc-shaped. A second groove 221 is provided on the inner side surface of the protective cover 22, and a second convex ring 232 is provided at the right end of the rotating shaft 23. The second convex ring 232 at the right end of the rotating shaft 23 is limited within the second groove 221 on the inner side surface of the protective cover 22. The first convex ring 231 at the left end of the rotating shaft 23 is limited inside the first groove 211 provided on the right end surface of the pin shaft 21. In this way, the left end of the rotating shaft 23 is connected to the pin shaft 21, and the right end of the rotating shaft 23 is connected to the protective cover 22. The rotating shaft 23 can rotate 360 degrees on the pin shaft 21 without detachment, and the protective cover 22 can rotate 360 degrees with the rotating shaft 23 as the center line without detachment. In this way, the protective cover 22, the rotating shaft 23, and the pin shaft 21 are connected into a whole. After the pin shaft 21 is installed in the square shaft hole 121 of the lock body, the protective cover 22 can rotate 360 degrees without detachment.
[0078] When installing the protection assembly 2, refer to Figures 4 to 8 , Figures 13 to 16 As shown, install from the outside of the door of the lock body towards the inside of the door. Figure 8 In Figure 15 and Figure 16 , a1 represents the outside of the lock body 1, and a2 represents the inside of the lock body 1; b1 represents the outside of the door of the door body, and b2 represents the inside of the door of the door body. During specific assembly, first insert the left end of the pin shaft 21 into the square shaft hole 121 of the lock body. At the same time, press down the outer end 243 of the pin 24 so that the outer end 243 of the pin 24 sinks to be flush with the side surface of the pin shaft 21. At this time, continue to insert the pin shaft 21 into the square shaft hole 121. When the insertion is in place, the left end plane of the protective cover 22 abuts against the outer end face 122 of the toggle 12 of the lock body 1, and the pin shaft 21 can no longer move. At this time, the pin 24 will protrude from the inside of the door of the lock body 1 and expose the inner end face 123 of the toggle 12. At this time, under the elastic force of the spring, the outer end 243 of the pin 24 will pop out again and protrude from the side surface of the pin shaft 21. In this way, the protection assembly 2 is fixed in the square shaft hole 121 of the lock body and cannot be disengaged in the left-right direction. The protective cover 22 blocks and protects the square shaft hole 121 of the lock body at the third opening 63 of the door body 6. In this way, the square shaft hole 121 and the toggle 12 are blocked and shielded by the protective cover 22. The protective cover 22 cannot be detached and can rotate 360 degrees, thereby preventing violators from using destructive tools such as electric drills to drill the square shaft hole 121 from the outside of the door body 6 and rotating the toggle 12 to maliciously unlock the lock, playing an effective protective role.
[0079] Refer to Figures 17 to 19As shown, some other embodiments of the utility model provide a door lock, comprising a front panel 4, a rear panel 5 and a lock body as in any of the above embodiments; the lock body has an inner side and an outer side arranged relatively, the front panel 4 is installed on the outer side of the lock body, and the rear panel 5 is installed on the inner side of the lock body.
[0080] In a specific implementation, the lock body is usually a part of the door lock, and the door lock usually includes a front panel 4, a rear panel 5 and a lock body. When installed, the lock body is installed inside the door body 6, and the front panel 4 and the rear panel 5 of the door lock are installed on the outside and inside of the door body 6 respectively. The front panel 4 and the rear panel 5 are connected to the lock body through the square shaft hole 121 of the lock body or the position of the lock core 3. Figures 17 to 19 As shown, b1 in the figure represents the outer side of the door body, and b2 represents the inner side of the door body.
[0081] Specifically, refer to Figures 13 to 16 , Figures 17 to 19 As shown, holes are opened at specific positions on the door body 6 for realizing installation connection or transmission connection between the lock body and the front and rear panels 5. The holes on the door body 6 are generally standardized. For installing a new door lock on an old door body 6, the holes on the door body 6 are ready-made holes. The holes on the door body 6 are respectively the first hole 61, the third hole 63, the fourth hole 64, and the second hole 62 from top to bottom, wherein the first hole 61 and the second hole 62 are used to pass the sleeve 15 and the connecting screw 16 of the front and rear panels 5, and are used to fix the front and rear panels 5 together, the third hole 63 is used to expose the position of the square shaft hole 121 of the lock body, and is used to insert a square shaft or a component similar to a square shaft at the position of the square shaft hole 121, and the fourth hole 64 is used to expose the position of the lock core installation hole 111, and is used to install the lock core 3.
[0082] For a door lock that is unlocked by mechanical transmission between the lock body and the front and rear panels 5 through the position of the lock core 3, there is no need to insert a square shaft or a component similar to a square shaft into the square shaft hole 121 of the lock body. In this way, after the front panel 4 is removed from the door body 6, the square shaft hole 121 of the lock body will be exposed, and an offender can easily use a tool to turn the toggle member 12 provided with the square shaft hole 121 to retract the lock tongue 13 of the lock body, thereby cracking the door. Based on this, the door lock provided by the embodiment of the utility model installs the protection component 2 at the square shaft hole 121, so as to utilize the protection cover 22 of the protection component 2 to cover the square shaft hole 121, thereby preventing the position of the square shaft hole 121 from being exposed to the outside. At the same time, at least the protection cover 22 in the protection component 2 is configured to be rotatable relative to the square shaft hole 121. In this way, when the criminal attempts to drill the protection cover 22 with a tool to crack, the protection cover 22 will rotate relative to the square shaft hole 121, and will not drive the toggle member 12 provided with the square shaft hole 121 to rotate, thereby preventing the toggle member 12 from being rotated to be unlocked, thereby effectively resisting the violent cracking by the criminals and playing an effective protective role.
[0083] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.
[0084] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but rather to the broadest scope consistent with the principles and novel features of the present invention as described herein.
Claims
1. A lock body, characterized in that, include: A lock body, wherein the lock body is provided with a toggle member, and the toggle member is provided with a square shaft hole reserved for installing a square shaft; A protection component is installed at the square shaft hole, the protection component comprises a pin shaft, a protection cover and a limiter, the protection cover is connected to one end of the pin shaft along the axial direction, and the limiter is arranged on the side of the pin shaft; The pin shaft is inserted into the square shaft hole, the protective cover is located on the outside of the square shaft hole and blocks the square shaft hole, the limiting member cooperates with the lock body to limit the pin shaft from escaping from the square shaft hole, and at least the protective cover in the protective assembly is configured to be rotatable relative to the square shaft hole.
2. The lock body according to claim 1, characterized in that, The pin shaft is a square shaft that matches the shape of the square shaft hole, and the protective cover is rotatably connected to one end of the pin shaft along the axial direction.
3. The lock body according to claim 2, characterized in that, A rotating shaft is connected between the protective cover and one end of the pin shaft along the axial direction, and at least one of the protective cover and the pin shaft is rotatably connected to the rotating shaft.
4. The lock body according to claim 3, characterized in that, A first groove is arranged on the end surface of the pin shaft facing the protective cover, and a first convex ring is arranged on the outer peripheral surface of one end portion of the rotating shaft along the axial direction, and the first convex ring is limited in the first groove; And / or, a second groove is provided on the surface of the protective cover on the side facing the pin shaft, and a second convex ring is provided on the outer peripheral surface of the other end of the rotating shaft along the axial direction, and the second convex ring is limited in the second groove.
5. The lock body according to claim 4, characterized in that, The notch of the first groove is formed as a first circular notch, and the diameter of the first circular notch is smaller than the diameter of the first convex ring and larger than the diameter of the rotating shaft; And / or, the notch of the second groove is formed as a second circular notch, and the diameter of the second circular notch is smaller than the diameter of the second convex ring and larger than the diameter of the rotating shaft.
6. The lock body according to claim 1, characterized in that, The pin shaft is a round shaft, the diameter of the pin shaft is smaller than the side length of the square shaft hole, and the protective cover is fixedly connected or rotatably connected to one end of the pin shaft along the axial direction.
7. The lock body according to any one of claims 1 to 6, characterized in that, A surface of one side of the protective cover facing the pin shaft is formed into a plane; And / or, a surface of the protective cover facing away from the pin shaft is formed as an arc-shaped surface.
8. The lock body according to any one of claims 1 to 6, characterized in that, The limiting member includes a pin and an elastic member; A limiting groove is provided on the side of one end of the pin shaft away from the protective cover, the pin and the elastic member are both arranged in the limiting groove, and the elastic member is supported between the pin and the bottom wall of the limiting groove, and the pin extends out of the limiting groove under the elastic force of the elastic member and abuts against the inner surface of the lock body for limiting.
9. The lock body according to claim 8, wherein, A limiting protrusion is provided on the outer peripheral surface of the pin, the limiting protrusion is provided at the middle part of the pin along the axial direction, and the limiting protrusion and one end part of the pin along the axial direction are limited in the limiting groove; The elastic member is a spring, which is sleeved on one end of the pin along the axial direction, and the spring abuts against the bottom wall of the limiting groove, and the other end of the pin along the axial direction extends out of the limiting groove under the elastic force of the spring.
10. A door lock, characterized in that, comprising a front panel, a rear panel and a lock body as claimed in any one of claims 1 to 9; The lock body has an inner side and an outer side that are oppositely arranged. The front panel is installed on the outer side of the lock body, and the rear panel is installed on the inner side of the lock body.