Bolt Lock
The bolt lock addresses the vulnerability of electric bolt locks during power outages by using a drive unit with a drive member that maintains the lock's engagement, significantly improving anti-theft security.
Patent Information
- Application Number
- JP2024600162U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2022-11-24
- Filing Date
- 2023-10-11
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2033-10-11
AI Technical Summary
Conventional electric bolt locks are vulnerable to theft during power outages, as the magnetic mechanism fails to maintain the lock's integrity without power.
The bolt lock incorporates a drive unit with a drive member that abuts a lock surface, providing an abutment force to limit the tongue's retraction into the lock body, ensuring the lock remains engaged even without power.
This configuration enhances the anti-theft capabilities of the bolt lock by maintaining the locked state during power outages, preventing unauthorized access.
Smart Images
Figure 0003250692000001_ABST
Abstract
Description
[Technical field]
[0001] (cross reference) This invention claims priority to a Chinese patent application filed with the China Patent Office on November 24, 2022, bearing application number 202223126644.4 and entitled "Bolt Lock", the entire contents of which are incorporated herein by reference.
[0002] (Technical field) The present invention relates to a locking structure, and more particularly to a bolt lock. [Background technology]
[0003] A bolt lock generally includes a latch and a striker with a hole. When the latch is inserted into the hole of the striker, the lock is in the locked state. Conventional bolt locks include electric bolt locks. Electric bolt locks generally use an electromagnet (solenoid) as a power source, and are magnetic when the power is turned on and lose their magnetism when the power is turned off, thereby realizing the process of the latch being inserted into or removed from the striker hole. However, when a power outage occurs, the electric bolt lock is almost ineffective, and a thief can use a sheet to insert into the door slit and turn the latch even slightly to unlock and commit theft. Therefore, the latch of an electric bolt lock is easily turned during a power outage, and the lock has poor anti-theft properties. Summary of the Invention [Problem to be solved by the invention]
[0004] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a bolt lock that can improve the anti-theft performance of the bolt lock. [Means for solving the problem]
[0005] In order to achieve the above object, the present invention is The lock body, a tongue slidably mounted within the lock body and having a locking surface; a drive unit including a drive member mounted within the lock body and drivably connected to the tongue; an electric drive mechanism mounted within the lock body and configured to drive the tongue by a drive unit to extend or retract the tongue from the lock body; A bolt lock is provided in which, in a locked state, the tongue extends from the lock body and the drive member abuts the locking surface to provide an abutment force that limits retraction of the tongue into the lock body.
[0006] In one or more embodiments, the drive member comprises a drive portion that abuts the locking surface to provide an abutment force that limits retraction of the tongue into the locking body.
[0007] In one or more embodiments, the drive member is rotatably connected within the lock body, the axial direction of the drive passes through a center of rotation of the drive member, and in a locked state, the axial direction of the drive is perpendicular to the locking face, and the axial direction of the drive is not perpendicular to the extension or retraction direction of the tongue.
[0008] In one or more embodiments, the drive unit further includes a transmission member, the drive member being connected to the electric drive mechanism by a transmission member.
[0009] In one or more embodiments, the electric drive mechanism includes a solenoid and a core shaft, one end of the transmission member is rotatably connected to the core shaft and the other end is rotatably connected to the drive member, and in a power-on state, the solenoid generates a magnetic force to drive the core shaft to move along the axial direction, and the core shaft drives the rotation of the drive member via the transmission member to drive the tongue to extend or retract from the lock body.
[0010] In one or more embodiments, a return spring is fitted onto the core shaft to drive the core shaft to return in a power-off state, thereby switching between extending the tongue from the lock body and retracting the tongue into the lock body.
[0011] In one or more embodiments, a first receiving groove is provided in the core shaft, and one end of the transmission member is rotatably connected to the first receiving groove; and / or A second accommodating groove is provided in the driving member, and one end of the transmission member is rotatably connected to the second accommodating groove.
[0012] In one or more embodiments, the tongue has an unlocking surface, and in an unlocked state, the driver abuts against the unlocking surface to drive the tongue to retract into the lock body.
[0013] In one or more embodiments, a position limiting groove is provided in the lock body, the extension direction of the position limiting groove is the same as the extension direction of the tongue, and a position limiting block is provided on the tongue, and the position limiting block is slidably connected within the position limiting groove.
[0014] In one or more embodiments, the bolt lock further includes a striker having a lock hole, and in a locked state, the tongue extends from the lock body and is inserted into the lock hole. Effect of the Invention
[0015] Compared with the prior art, the bolt lock of the present invention installs a driving member inside the lock body, and in the locked state, the driving member abuts against the lock surface to provide a contact force that restricts the retraction of the tongue into the lock body. With this installation, even if the bolt lock encounters a power outage, the bolt lock can still be locked, that is, the tongue is difficult to be turned by a sheet inserted into the door slit and retract into the lock body, improving the anti-theft performance of the bolt lock. [Brief description of the drawings]
[0016] [Figure 1]FIG. 2 is a cross-sectional view of a bolt lock according to an embodiment of the present invention in a locked state. [Diagram 2] FIG. 2 is a cross-sectional view of a bolt lock according to an embodiment of the present invention in an unlocked state. [Diagram 3] 2 is a schematic diagram illustrating the connection between a driving unit and an electric driving mechanism according to an embodiment of the present invention; [Figure 4] FIG. 11 is a cross-sectional view of a bolt lock according to another embodiment of the present invention in a locked state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.
[0018] Unless otherwise indicated, throughout the specification and claims, the term "comprises" or variations thereof, such as "include" or "have," is understood to include the described elements or components without excluding other elements or components.
[0019] As shown in FIG. 1 and FIG. 2 , a bolt lock according to an embodiment of the present invention includes a lock body 1, a tongue 2, a drive unit 3, and an electric drive mechanism 4, in which the tongue 2 is slidably mounted in the lock body 1, the tongue 2 has a locking surface 21, the drive unit 3 is mounted in the lock body 1, the drive unit 3 includes a drive member 31 operably connected to the tongue 2, the electric drive mechanism 4 is mounted in the lock body 1, the electric drive mechanism 4 drives the tongue 2 to extend or retract from the lock body 1 by the drive unit 3, in a locked state, the tongue 2 extends from the lock body 1, and the drive member 31 abuts against the locking surface 21 to provide an abutment force that limits the retraction of the tongue 2 into the lock body 1.
[0020] The driving member 31 of the present invention not only drives the extension of the tongue 2 from the lock body 1 and performs the locking function (locked state), but in the locked state, the driving member 31 abuts against the lock surface 21, providing an abutment force that limits the retraction of the tongue 2 into the lock body 1, so that the tongue 2 cannot be easily turned from the outside through the slit with other tools (e.g., a sheet) to retract into the lock body 1, thereby improving the anti-theft properties of the bottle lock.
[0021] In one specific embodiment, the bolt lock further includes a striker 5 having a locking hole 51, and in the locked state, the tongue 2 extends from the lock body 1 and is inserted into the locking hole 51. As shown in the drawings, the above-mentioned slit is understood as the space between the striker 5 and the lock body 1.
[0022] In general, the striker 5 and the lock body 1 are respectively attached to two engaging objects so that the bolt lock can lock two objects. For example, the two engaging objects may be a door and a door frame, a window and a window frame, a cabinet door and a cabinet body, etc.
[0023] In one specific embodiment, the driving member 31 has a driving portion 311, which can abut against the locking surface 21 to provide an abutment force that limits the retraction of the tongue 2 into the locking body 1. As shown in the drawings, the driving portion 311 may be rod-shaped.
[0024] Specifically, the driving member 31 is rotatably connected within the lock body 1, the axial direction of the driving part 311 passes through the rotation center of the driving member 31, and in the locked state, the axial direction of the driving part 311 is perpendicular to the lock surface 21, and the axial direction of the driving part 311 is not perpendicular to the extending or retracting direction of the tongue 2. When installed in this manner, when the tongue 2 retracts into the lock body 1, the thrust force applied to the driving part 311 by the lock surface 21 by the tongue 2 is the same as the axial direction of the driving part 311, and since the axial direction of the driving part 311 passes through the rotation center of the driving member 31, the thrust force cannot drive the rotation of the driving member 31, and thus the tongue 2 cannot retract into the lock body 1.
[0025] Moreover, the drive unit 3 further includes a transmission member 32 , by which the drive member 31 is connected to the electric drive mechanism 4 .
[0026] Specifically, the electric drive mechanism 4 includes a solenoid 41 and a core shaft 42, one end of the transmission member 32 is rotatably connected to the core shaft 42 and the other end is rotatably connected to the drive member 31, and in a power-on state, the solenoid 41 generates a magnetic force to drive the core shaft 42 to move along the axial direction, and the core shaft 42 drives the rotation of the drive member 31 via the transmission member 32 to drive the tongue 2 to extend or retract from the lock body 1. The transmission member 32 can convert a linear force generated by the electric drive mechanism 4 into a force that drives the rotation of the drive member 31.
[0027] 3, the shaft 42 is further provided with a first accommodating groove 421, and one end of the transmission member 32 is rotatably connected to the first accommodating groove 421, and / or the driving member 31 is further provided with a second accommodating groove 312, and one end of the transmission member 32 is rotatably connected to the second accommodating groove 312. By installing in this manner, the connection strength between the transmission member 32, the shaft 42, and the driving member 31 can be reinforced, and at the same time, the first accommodating groove 421 and the second accommodating groove 312 can also play a role in preventing the transmission member 32 from moving.
[0028] In one specific embodiment, a return spring 422 is fitted on the core shaft 42 to drive the return of the core shaft 42 in the power-off state to switch between extending from the lock body 1 and retracting into the lock body 1. Specifically, as shown in Fig. 2, in the power-on state, the return spring 422 is in a compressed state, and at this time, the tongue 2 retracts into the lock body 1, and the bolt lock is considered to be in an unlocked state. As shown in Fig. 1, in the power-off state, the return spring 422 in the compressed state returns to move the core shaft 42 upward, and the driving member 31 pushes the tongue 2 to extend from the lock body 1, and the bolt lock is considered to be in a locked state.
[0029] 4, in another embodiment, by simply fine-tuning the lock of the drive unit 3, in the power-on state, the return spring 422 is in a compressed state, at which time the tongue 2 extends from the lock body 1 and the bolt lock is considered to be in a locked state. In the power-off state (this state is not shown), the tongue 2 retracts into the lock body 1 and the bolt lock is considered to be in an unlocked state.
[0030] As shown in FIG. 2 , in one specific embodiment, the tongue 2 has an unlocking surface 22 , and in the unlocked state, the driving part 311 abuts against the unlocking surface 22 to drive the tongue 2 to retract into the lock body 1 .
[0031] 1 and 2 , in one or more embodiments, a position limiting groove 11 is provided in the lock body 1, the extension direction of the position limiting groove 11 is the same as the extension direction of the tongue 2, and a position limiting block 23 is provided on the tongue 2, and the position limiting block 23 is slidably connected in the position limiting groove 11. The engagement between the position limiting groove 11 and the position limiting block 23 may play a role in positioning when the tongue 2 is attached in the lock body 1, and may also play a role in guiding and regulating the position when the tongue 2 extends or retracts from the lock body 1.
[0032] In view of the above, the beneficial effects of the bolt lock of the present invention are as follows: 1) With good anti-theft property, the bottlelock products can be applied to anti-theft fields such as furniture, anti-theft doors, cabinets, etc. 2) This configuration can realize power-on locking or power-off locking by replacing the drive unit, and power-off locking can further improve the anti-theft properties of the product, i.e., the product will remain locked during a power outage. 3) Installation is more convenient, and the installation position can be selected more conveniently.
[0033] For purposes of explanation and illustration, specific embodiments of the present invention have been described above. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. The purpose of selecting and describing exemplary embodiments is to explain certain principles of the present invention and its practical application, thereby enabling those skilled in the art to realize and utilize various exemplary embodiments and various choices and modifications of the present invention. It is intended that the scope of the present invention be limited by the scope of the claims and their equivalents. [Explanation of symbols]
[0034] 1 lock body, 11 position control groove, 2 tongue, 21 lock surface, 22 unlock surface, 23 position control block, 3 drive unit, 31 drive member, 311 drive section, 312 second accommodating groove, 32 transmission member, 4 electric drive mechanism, 41 solenoid, 42 core shaft, 421 first accommodating groove, 422 return spring, 5 striker, 51 lock hole.
Claims
1. The lock body, a tongue slidably mounted within the lock body and having a locking surface; a drive unit including a drive member mounted within the lock body and drivably connected to the tongue; an electric drive mechanism mounted within the lock body and configured to drive the tongue by a drive unit to extend or retract the tongue from the lock body; In a locked state, the tongue extends from the lock body, and the drive member abuts against the lock surface to provide an abutment force that limits retraction of the tongue into the lock body. A bolt lock characterized by:
2. The drive member includes a drive portion that abuts against the locking surface to provide a contact force that limits retraction of the tongue into the locking body.
2. The bolt lock according to claim 1.
3. The drive member is rotatably connected within the lock body, the axial direction of the drive part passes through a rotation center of the drive member, in a locked state, the axial direction of the drive part is perpendicular to the locking surface, and the axial direction of the drive part is not perpendicular to the extension or retraction direction of the tongue.
3. The bolt lock according to claim 2.
4. The drive unit further includes a transmission member, and the drive member is connected to the electric drive mechanism by a transmission member.
4. The bolt lock according to claim 3.
5. The electric drive mechanism includes a solenoid and a core shaft. One end of the transmission member is rotatably connected to the core shaft and the other end is rotatably connected to the drive member. In a power-on state, the solenoid generates a magnetic force to drive the core shaft to move along the axial direction, and the core shaft drives the rotation of the drive member via the transmission member to drive the tongue to extend or retract from the lock body.
5. The bolt lock according to claim 4.
6. A return spring is fitted to the core shaft to drive the core shaft to return in a power-off state, thereby switching between the tongue extending from the lock body and the tongue retracting into the lock body.
6. A bolt lock as claimed in claim 5.
7. A first receiving groove is provided in the core shaft, and one end of the transmission member is rotatably connected to the first receiving groove; and / or A second receiving groove is provided in the driving member, and one end of the transmission member is rotatably connected to the second receiving groove.
6. A bolt lock as claimed in claim 5.
8. The tongue has an unlocking surface, and in an unlocked state, the driving portion abuts against the unlocking surface to drive the tongue to retract into the lock body.
3. The bolt lock according to claim 2.
9. A position limiting groove is provided in the lock body, and the extension direction of the position limiting groove is the same as the extension direction of the tongue, and a position limiting block is provided on the tongue, and the position limiting block is slidably connected to the position limiting groove.
2. The bolt lock according to claim 1.
10. The bolt lock further includes a striker having a lock hole, and in a locked state, the tongue extends from the lock body and is inserted into the lock hole.
2. The bolt lock according to claim 1.