Anti-burglary lock

Abstract

The utility model discloses a violence-proof lock, including front panel group, lock cylinder group and rear panel group, and the front panel group includes front cover and explosion -proof bottom board, and the explosion -proof bottom board is located front cover rear side and is detachably connected with front cover, and the explosion -proof bottom board rear side is equipped with the sleeve pipe, and the rear panel group includes rear cover and rear bottom board, and the rear bottom board is located rear cover front side, and the rear bottom board front side is equipped with the rear screw of detachable fixed connection with sleeve pipe. Since the explosion -proof bottom board and rear bottom board are connected through the sleeve pipe and rear screw, the explosion -proof bottom board is close to the outside of door body, and the rear bottom board is close to the inside of door body, the front cover is assembled on the explosion -proof bottom board and constitutes the front panel group, and the rear cover is assembled on the rear bottom board and constitutes the rear panel group, so the front cover is fixed by the explosion -proof bottom board, and the explosion -proof bottom board is fixed by the rear bottom board, so that the front panel group is tightly connected on the door body, even if the thief breaks the front cover outside the door, it is also difficult to separate the explosion -proof bottom board from the door body to open the lock, and the anti -theft performance and the violent disassembly resistance are high.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to anti-riot locks. Background Technology

[0002] A door lock is a device designed to prevent unauthorized entry for security and protection purposes. Existing door locks consist of a front panel assembly, a lock cylinder assembly, and a rear panel assembly. The front panel assembly is fixed to the outside of the door with screws, while the rear panel assembly is fixed to the inside of the door with screws. Because the front panel assembly is fixed to the outside of the door with screws, the assembly is not tight, resulting in gaps and poor resistance to forced entry. Thieves can easily pry off the front panel assembly using common hardware tools such as hammers, sticks, and screwdrivers, thus breaking and opening the lock, resulting in inadequate anti-theft performance. Summary of the Invention

[0003] The purpose of this utility model is to provide a riot lock to solve the problem that the front panel assembly of existing door locks, which is fixed to the outside of the door with screws, has poor resistance to violent attacks, is easily pried off and opened, and has poor anti-theft performance.

[0004] This utility model is achieved through the following technical solution: An anti-riot lock includes a front panel assembly, a lock cylinder assembly, and a rear panel assembly arranged sequentially from front to back. The front panel assembly includes a front cover plate, an explosion-proof base plate, and a front handle. The front handle is located on the front side of the front cover plate and can rotate relative to the front cover plate. The explosion-proof base plate is located on the rear side of the front cover plate and is detachably fixedly connected to the front cover plate. A sleeve is provided on the rear side of the explosion-proof base plate. The rear panel assembly includes a rear cover plate and a rear base plate. The rear base plate is located on the front side of the rear cover plate, and a sleeve is detachably fixedly connected to the front side of the rear base plate. The rear screw, the lock cylinder assembly includes a drive shaft and a lock body, one end of the drive shaft is movably connected to the lock body, and the other end passes through the explosion-proof base plate and is connected to the front handle, the drive shaft is provided with a stop plate, the stop plate is used to abut against the rear side of the explosion-proof base plate to restrict the drive shaft from moving from back to front and disengaging from the lock body, the explosion-proof base plate is provided with a hole for the drive shaft to pass through, the stop plate passes through the drive shaft and its outer diameter is larger than the hole diameter, the rear side of the explosion-proof base plate is provided with a shoulder extending circumferentially around the hole.

[0005] Furthermore, a front screw is riveted to the explosion-proof base plate, and the sleeve is threaded onto the front screw.

[0006] Furthermore, the front cover plate is provided with a connecting seat, and the explosion-proof base plate is provided with fasteners that are threadedly connected to the connecting seat.

[0007] Furthermore, there are several sleeves and several rear screws, each corresponding to the other, and several sleeves are arranged opposite to each other on the explosion-proof base plate.

[0008] Furthermore, the drive shaft is provided with a positioning groove for the stop plate to be inserted, and the positioning groove extends circumferentially around the drive shaft.

[0009] Furthermore, the lock cylinder assembly also includes a lock head and a cover. One end of the cover abuts against the rear side of the explosion-proof base plate, and the other end extends out of the front side of the front cover plate. The lock head is disposed on the lock body and has a lock hole. The cover has an assembly cavity for inserting the lock head and an exposed hole for exposing the lock hole to the front side of the front cover plate.

[0010] Furthermore, the cover has a stop portion that abuts against the rear side of the explosion-proof base plate, and there are several stop portions, which are arranged opposite each other in the radial direction of the cover.

[0011] The advantage of this technical solution lies in that, by configuring the front panel assembly as a front cover plate and an explosion-proof base plate, with the explosion-proof base plate positioned behind the front cover plate and detachably fixed to it, and a sleeve provided on the rear side of the explosion-proof base plate, the rear panel assembly is configured as a rear cover plate and a rear base plate. The explosion-proof base plate and the rear base plate are connected by a sleeve and rear screws, ensuring that the explosion-proof base plate is tightly attached to the outside of the door and the rear base plate is tightly attached to the inside of the door. The front cover plate is assembled onto the explosion-proof base plate to form the front panel assembly, and the rear cover plate is assembled onto the rear base plate to form the rear panel assembly. Since the front cover plate is restrained and fixed by the explosion-proof base plate, and the explosion-proof base plate is restrained and fixed by the rear base plate, the front panel assembly is tightly connected to the door. Even if a thief damages the front cover plate from the outside, it is difficult to remove the explosion-proof base plate from the door to unlock it. The anti-theft performance and resistance to violent disassembly of the lock are greatly improved. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0014] Figure 1 This is a three-dimensional embodiment of the anti-riot lock of this utility model. Figure 1 ; Figure 2 This is a three-dimensional embodiment of the anti-riot lock of this utility model. Figure 2 ; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 yesFigure 2 A magnified view of a section at point B in the middle; Figure 5 This is a cross-sectional view of the anti-riot lock according to an embodiment of this utility model; Figure 6 yes Figure 5 A magnified view of a section at point C; Figure 7 yes Figure 5 A magnified view of a section at point D; Figure 8 yes Figure 5 A magnified view of a section at point E in the middle; Figure 9 This is a partial exploded view of the anti-riot lock according to an embodiment of this utility model; Figure 10 This is a schematic diagram of the application of the anti-riot lock in a door according to an embodiment of this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Figures 1-10 As shown, the anti-riot lock includes a front panel assembly 1, a lock cylinder assembly 2, and a rear panel assembly 3 arranged sequentially from front to back. The front panel assembly 1 includes a front cover plate 101, an explosion-proof base plate 102, and a front handle 103. The front handle 103 is located on the front side of the front cover plate 101 and can rotate relative to the front cover plate 101. The explosion-proof base plate 102 is located on the rear side of the front cover plate 101 and is detachably fixedly connected to the front cover plate 101. A sleeve 104 is provided on the rear side of the explosion-proof base plate 102. The rear panel assembly 3 includes a rear cover plate 301, a rear base plate 300, and a rear handle 302. 02 is located on the rear side of the rear cover plate 301 and can rotate relative to the rear cover plate 301. The rear base plate 300 is located on the front side of the rear cover plate 301 and is provided with a rear screw 303 that is detachably fixedly connected to the sleeve 104. The lock cylinder assembly 2 includes a drive shaft 201, a lock body 202 and a lock tongue 203. One end of the drive shaft 201 is movably connected to the lock body 202, and the other end passes through the explosion-proof base plate 102 and is connected to the front handle 103. When the front handle 103 and / or the rear handle 302 rotate, they drive the drive shaft 201 to rotate, causing the lock tongue 203 to extend or retract into the lock body 202.

[0017] like Figure 10As shown, the explosion-proof base plate 102 is disposed on the outside of the door, and the rear base plate 300 is disposed on the inside of the door. The explosion-proof base plate 102 and the rear base plate 300 are connected by a sleeve 104 and a rear screw 303, so that the explosion-proof base plate 102 is tightly attached to the outside of the door and the rear base plate 300 is tightly attached to the inside of the door. The front cover plate 101 is assembled on the explosion-proof base plate 102 to form the front panel assembly 1, and the rear cover plate 301 is assembled on the rear base plate 300 to form the rear panel assembly 3.

[0018] This embodiment provides a riot lock to solve the problem that existing door locks, whose front panel assemblies are fixed to the outside of the door with screws, have poor resistance to violent attacks, are easily pried off and opened, and have poor anti-theft performance. The main solution is to configure the front panel assembly 1 as a front cover plate 101 and an explosion-proof base plate 102. The explosion-proof base plate 102 is located behind the front cover plate 101 and is detachably fixed to it. A sleeve 104 is provided on the rear side of the explosion-proof base plate 102. The rear panel assembly 3 is configured as a rear cover plate 301 and a rear base plate 300. The explosion-proof base plate 102 and the rear base plate 300 are connected by the sleeve 104 and rear screws 300. The three-way connection ensures that the explosion-proof base plate 102 is tightly attached to the outside of the door, and the rear base plate 300 is tightly attached to the inside of the door. The front cover plate 101 is assembled on the explosion-proof base plate 102 to form the front panel assembly 1, and the rear cover plate 301 is assembled on the rear base plate 300 to form the rear panel assembly 3. Since the front cover plate 101 is restrained and fixed by the explosion-proof base plate 102, and the explosion-proof base plate 102 is restrained and fixed by the rear base plate 300, the front panel assembly 1 is tightly connected to the door. Even if a thief damages the front cover plate 101 from outside the door, it will be difficult to remove the explosion-proof base plate from the door to unlock it. The anti-theft performance and resistance to violent disassembly of the lock are greatly improved.

[0019] In this embodiment of the invention, a stop plate 204 is provided on the drive shaft 201. The stop plate 204 is used to abut against the rear side of the explosion-proof base plate 102 to restrict the drive shaft 201 from moving forward and disengaging from the lock body 202. For ease of assembly, the drive shaft 201 is configured to be detachably connected to the lock body 202; specifically, the drive shaft 201 can move forward and disengage from the lock body 202. This arrangement, by providing a stop plate 204 on the drive shaft 201 to abut against the rear side of the explosion-proof base plate 102 and restrict the drive shaft 201 from moving forward and disengaging from the lock body 202, prevents thieves from pulling out the drive shaft 201 and inserting tools to unlock the lock body 202, thus improving the security of the lock.

[0020] In this embodiment of the invention, the explosion-proof base plate 102 is provided with an insertion hole 108 for the drive shaft 201 to pass through. A stop plate 204 passes through the drive shaft 201 and has an outer diameter larger than the diameter of the insertion hole 108. The insertion hole 108 and the drive shaft 201 are rotatably matched. This arrangement, by configuring the stop plate 204 to pass through the drive shaft 201 and have an outer diameter larger than the diameter of the insertion hole 108, allows the stop plate 204 to abut against the rear side of the explosion-proof base plate 102, restricting the drive shaft 201 from moving forward and disengaging from the lock body 202, thus ensuring high lock security.

[0021] In this embodiment of the present invention, the explosion-proof base plate 102 has a protruding shoulder 109 extending circumferentially around the insertion hole 108 on its rear side, and the shoulder 109 is used to abut against the stop plate 204.

[0022] In this embodiment of the utility model, the lock body 202 is provided with a lock hole (not shown in the figure) for the transmission shaft 201 to be inserted. The lock hole matches the shape of the transmission shaft 201, so that the transmission shaft 201 has good torsional strength.

[0023] In this embodiment of the utility model, a front screw 001 is riveted to the explosion-proof base plate 102, and a sleeve 104 is threaded onto the front screw 001.

[0024] In this embodiment of the utility model, the rear screw 303 is a screw inserted into the rear cover plate 301, and the rear screw 303 is provided with a nut 002 to lock it onto the rear cover plate 301.

[0025] In this embodiment of the invention, a connecting seat 106 is provided on the front cover plate 101, and a fastener 107 threadedly connected to the connecting seat 106 is provided on the explosion-proof base plate 102. Specifically, the fastener 107 is a screw inserted into the explosion-proof base plate 102. By configuring the connecting seat 106 on the front cover plate 101 and the fastener 107 threadedly connected to the connecting seat 106 on the explosion-proof base plate 102, the explosion-proof base plate 102 is locked and fixed to the front cover plate 101, making assembly and disassembly simple and quick.

[0026] In this embodiment of the invention, there are multiple sleeves 104 and rear screws 303, each corresponding to the other. These sleeves 104 are arranged opposite each other on the explosion-proof base plate 102. This arrangement, by configuring multiple sleeves 104 and rear screws 303, and having these sleeves 104 arranged opposite each other on the explosion-proof base plate 102, ensures a stable connection between the explosion-proof base plate 102 and the rear cover plate 301.

[0027] In this embodiment of the invention, the drive shaft 201 is provided with a positioning groove 205 for the stop plate 204 to be embedded in, and the positioning groove 205 extends circumferentially around the drive shaft 201. The above arrangement, by configuring the positioning groove 205 for the stop plate 204 to be embedded in the drive shaft 201, makes the stop plate 204 and the drive shaft 201 stably assembled.

[0028] In this embodiment of the present invention, a flange (not shown in the figure) is provided between the rear cover plate 301 and the rear bottom plate 300. The above-mentioned arrangement enhances the tensile strength between the rear cover plate 301 and the rear bottom plate 300 by placing the flange between them.

[0029] In this embodiment of the invention, the lock cylinder assembly 2 further includes a lock head 206 and a cover 207. One end of the cover 207 abuts against the rear side of the explosion-proof base plate 102, and the other end extends out of the front side of the front cover plate 101. The lock head 206 is mounted on the lock body 202 and has a lock hole 208. The cover 207 has an assembly cavity 210 for inserting the lock head 206 and an exposed hole 209 for exposing the lock hole 208 to the front side of the front cover plate 101. By configuring the cover 207 such that one end abuts against the rear side of the explosion-proof base plate 102 and the other end extends out of the front side of the front cover plate 101, and the lock head 206 is housed within the cover 207, the lock head 206 is prevented from being pried open by thieves, thus improving the security of the lock.

[0030] In this embodiment of the invention, the cover 207 has a stop portion 211 that abuts against the rear side of the explosion-proof base plate 102. There are several stop portions 211 arranged radially opposite each other on the cover 207. This arrangement, by configuring the cover 207 with several stop portions 211 that abut against the rear side of the explosion-proof base plate 102, prevents thieves from pulling out the cover 207 and breaking the lock cylinder 206, thus improving the security of the lock.

[0031] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered as protected by this utility model.

Claims

1. A riot lock, comprising a front panel assembly, a lock cylinder assembly, and a rear panel assembly arranged sequentially from front to back, characterized in that, The front panel assembly includes a front cover plate, an explosion-proof base plate, and a front handle. The front handle is located on the front side of the front cover plate and can rotate relative to the front cover plate. The explosion-proof base plate is located on the rear side of the front cover plate and is detachably fixedly connected to the front cover plate. A sleeve is provided on the rear side of the explosion-proof base plate. The rear panel assembly includes a rear cover plate and a rear bottom plate. The rear bottom plate is located on the front side of the rear cover plate, and a rear screw is provided on the front side of the rear bottom plate for detachable and fixed connection with the sleeve. The lock cylinder assembly includes a drive shaft and a lock body. One end of the drive shaft is movably connected to the lock body, and the other end passes through the explosion-proof base plate and is connected to the front handle. A stop plate is provided on the drive shaft, which is used to abut against the rear side of the explosion-proof base plate to restrict the drive shaft from moving from back to front and disengaging from the lock body. The explosion-proof base plate is provided with a hole for the drive shaft to pass through. The stop plate passes through the drive shaft and its outer diameter is larger than the diameter of the hole. The explosion-proof base plate has a shoulder extending circumferentially around the hole on its rear side.

2. The anti-riot lock according to claim 1, characterized in that, The explosion-proof base plate is riveted with a front screw, and the sleeve is threaded onto the front screw.

3. The anti-riot lock according to claim 1, characterized in that, The front cover plate is provided with a connecting seat, and the explosion-proof base plate is provided with fasteners that are threadedly connected to the connecting seat.

4. The anti-riot lock according to claim 1, characterized in that, There are several sleeves and several rear screws, each corresponding to the other, and several sleeves are arranged opposite to each other on the explosion-proof base plate.

5. The anti-riot lock according to claim 1, characterized in that, The drive shaft is provided with a positioning groove for the stop plate to be inserted, and the positioning groove extends circumferentially around the drive shaft.

6. The anti-riot lock according to claim 1, characterized in that, The lock cylinder assembly also includes a lock head and a cover. One end of the cover abuts against the rear side of the explosion-proof base plate, and the other end extends out of the front side of the front cover plate. The lock head is located on the lock body and has a lock hole. The cover has an assembly cavity for inserting the lock head and an exposed hole for exposing the lock hole to the front side of the front cover plate.

7. The anti-riot lock according to claim 6, characterized in that, The cover has a stop portion that abuts against the rear side of the explosion-proof base plate. There are several stop portions, and the several stop portions are arranged opposite each other in the radial direction of the cover.

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