Double-safety lock bolt device

Abstract

The double-safety lock bolt device comprises a lock shell, a lock sleeve, a lock cylinder, a first lock bolt, a second lock bolt, a key, an emergency key, a first sliding block and a second sliding block, sliding grooves are formed in the first sliding block and the second sliding block, and eccentric cylinders in sliding fit with the sliding grooves are arranged at the bottom end of the lock cylinder; each sliding groove comprises a section of straight groove and a section of arc groove which are communicated with each other, a sliding groove in the first sliding block, a starting section of the straight groove and an ending section of the arc groove, and a sliding groove in the second sliding block, a starting section of the arc groove and an ending section of the straight groove; wherein a locking structure is arranged in the lock cylinder, and the locking structure is used for limiting the rotating angle of the lock cylinder; through the arrangement of the locking structure and the sliding groove, only the first lock bolt can be withdrawn when the key rotates, the first lock bolt can be withdrawn when the emergency key rotates, the password lock can be assisted in achieving emergency unlocking of the second lock bolt, the safe box only needs to be provided with a mechanical lock and the password lock, and the manufacturing cost of the safe box is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lock technology field especially relates to a double insurance lock bolt device. BACKGROUND

[0002] The general safe and the strongbox include the password lock and the mechanical lock double insurance, only the password lock and the mechanical lock are unlocked simultaneously, and the door can be opened.

[0003] For example, the electromagnetic lock of a kind of emergency unlocking of Chinese invention patent with the publication number CN118979664A, it can realize mechanical unlocking in the case of not being powered, for emergency door opening;Mechanical key cooperates with electromagnetic assembly to carry out unlocking in coordination, on the one hand, mechanical key needs to be matched with lock core hole to improve the security of lock, on the other hand, mechanical key is reset through the automatic reset function of electromagnetic assembly after unlocking, and can be used again, but such structure still has the following several significant defects:

[0004] 1, mechanical lock is mechanical structure, generally not prone to failure, and password lock has circuit part, prone to problems, to prevent from being unable to open door due to password lock failure, generally, emergency mechanical lock of auxiliary password lock emergency opening is additionally provided, therefore, two mechanical locks and a password lock are needed on a safe or strongbox in total, overall cost is higher;

[0005] 2, present lawless element usually uses nimble small tool to pry open the lock on the safe through lock hole, and then carry out theft, however, lock core often does not have the function of secondary locking, and will give lawless ruffian an opportunity. SUMMARY

[0006] The utility model aims at solving one of the technical problems existing in prior art.

[0007] The application provides a double insurance lock bolt device, which comprises a lock shell, a lock sleeve, a lock core, a first lock bolt, a second lock bolt, a key and an emergency key, a No. 1 sliding block and a No. 2 sliding block are slidably installed in the lock shell, the No. 1 sliding block and the No. 2 sliding block are each provided with a sliding groove, the bottom end of the lock core is provided with an eccentric cylinder that is in sliding cooperation with the pair of sliding grooves, each sliding groove comprises a straight groove and an arc groove that are connected in communication, the sliding groove on the No. 1 sliding block has a starting section that is a straight groove and an ending section that is an arc groove, and the sliding groove on the No. 2 sliding block has a starting section that is an arc groove and an ending section that is a straight groove.

[0008] The lock core is provided with a locking structure, the locking structure is used to limit the rotation angle of the lock core, after the key / emergency key is inserted into the lock core, the lock core is rotated, and the eccentric cylinder pushes the No. 1 sliding block to slide / sequentially pushes the No. 1 sliding block and the No. 2 sliding block to slide.

[0009] Further, the locking structure comprises a limiting groove, a constraint groove, a limiting block and a blade, the inner circumferential wall of the lock sleeve is provided with the limiting groove and the constraint groove, the outer circumferential wall of the lock core is provided with the limiting block which is in sliding fit with the limiting groove, the inner end of the lock core is floatingly provided with the hollow blade, the blade corresponds to the constraint groove, the protrusions are arranged on the key and the emergency key, the protrusion on the key is located at the front end of the key, the protrusion on the emergency key is located at the rear end of the emergency key, and the protrusions on the key and the emergency key cannot lift the blade and make the blade separate from the constraint groove after the key and the emergency key are inserted into the lock core.

[0010] Further, the central angle of the limiting groove is greater than the central angle of the constraint groove.

[0011] Further, the inner circumferential wall of the lock sleeve is provided with the locking groove, the inner end of the lock core is floatingly provided with the hollow first locking blade, the first locking blade corresponds to the locking groove, the locking teeth are arranged on the key and the emergency key, and the locking teeth on the key and the emergency key can lift the first locking blade and make the first locking blade separate from the locking groove after the key and the emergency key are inserted into the lock core.

[0012] Further, the inner end of the lock core is floatingly provided with the anti-torque block, the inner circumferential wall of the lock sleeve is provided with the clamping groove corresponding to the anti-torque block, the inner end of the lock core is floatingly provided with the plurality of hollow second locking blades, the end of the second locking blade facing the anti-torque block is provided with the V-shaped groove, and the locking teeth on the key and the emergency key can push the plurality of second locking blades to slide, so that the V-shaped grooves on the second locking blades are aligned, the anti-torque block can be slid into the V-shaped groove and separated from the clamping groove after the key and the emergency key are inserted into the lock core.

[0013] Further, the inner end of the lock core is floatingly provided with the circular ring block and the plurality of locking blocks, the plurality of locking blocks are provided with the inclined grooves, the bottom end of the circular ring block is fixedly provided with the plurality of abutting blocks, and the plurality of abutting blocks correspond to the inclined grooves respectively.

[0014] The lock sleeve is provided with the anti-theft grooves corresponding to the plurality of locking blocks, and the circular ring block can push the plurality of locking blocks into the corresponding anti-theft grooves by sliding downward.

[0015] Further, the top end of the circular ring block is fixedly provided with a pair of symmetrical inclined blocks, and the inner end of the lock core is floatingly provided with the pushing blocks corresponding to the inclined blocks.

[0016] The first locking blade can push the pair of pushing blocks to slide, and the pair of pushing blocks can push the corresponding inclined blocks to slide downward.

[0017] Further, the lock core is provided with the installation cavity which is in communication with the anti-theft hole, the installation cavity is floatingly provided with the plug-in block, the circular ring block is provided with the plug-in groove corresponding to the plug-in block, and the plug-in block can be plugged into the corresponding plug-in groove.

[0018] The utility model discloses the beneficial effect is as follows:

[0019] 1、Through the setting of the locking structure, the first sliding block, the second sliding block and the sliding groove, the key rotation can only drive the first lock bolt to retract, the emergency key rotation can retract the first lock bolt and assist the password lock to realize the emergency unlocking of the second lock bolt, so that the safe only needs to be equipped with a mechanical lock and a password lock, thereby reducing the manufacturing cost;

[0020] 2、Through the setting of the circular block, the locking block, the pressing block, the anti-theft slot, the inclined block, the pushing block, the plug-in block and the plug-in hole, when the first locking blade is repeatedly pushed, the lock cylinder will be automatically locked, thereby improving the safety performance. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of a double insurance lock bolt device in the embodiment of the application;

[0022] Figure 2 It is a structure schematic view of the second sliding block, the second lock bolt and the external electromagnetic valve in the embodiment of the application;

[0023] Figure 3 It is a structure schematic view of the first sliding block, the second sliding block and the lock cylinder in the embodiment of the application;

[0024] Figure 4 It is a structure schematic view of the first sliding block and the second sliding block in the embodiment of the application;

[0025] Figure 5 It is a structure schematic view of the key and the emergency key in the embodiment of the application;

[0026] Figure 6 It is a structure schematic view of the lock cylinder and the lock sleeve in the embodiment of the application;

[0027] Figure 7 It is a top view of the lock cylinder and the lock sleeve in the embodiment of the application;

[0028] Figure 8 It is Figure 6 a sectional view structure schematic view along the B-B direction;

[0029] Figure 9 It is Figure 6 a sectional view structure schematic view along the A-A direction;

[0030] Figure 10 It is a structure schematic view of the anti-strong torsion block, the second locking blade and the V-shaped groove in the embodiment of the application;

[0031] Figure 11 It is Figure 7 a sectional view structure schematic view along the C-C direction;

[0032] Figure 12 It is Figure 11 an enlarged structure schematic view at E in the embodiment of the application;

[0033] Figure 13 For Figure 7 A cross-sectional structure schematic view along the direction of D-D;

[0034] Figure 14 For Figure 13 An enlarged structure schematic view at F.

[0035] Reference signs

[0036] 1 - lock shell, 2 - lock sleeve, 21 - locking groove, 22 - clamping groove, 3 - lock core, 31 - eccentric cylinder, 32 - first locking blade, 33 - anti-torque block, 34 - second locking blade, 35 - V-shaped groove, 4 - first lock bolt, 5 - second lock bolt, 6 - key, 7 - emergency key, 81 - first sliding block, 82 - second sliding block, 83 - sliding groove, 84 - straight groove, 85 - circular arc groove, 9 - locking structure, 91 - limiting groove, 92 - constraint groove, 93 - limiting block, 94 - blade, 101 - protrusion, 102 - lock teeth, 11 - circular ring block, 12 - locking block, 13 - inclined groove, 14 - pressing block, 15 - anti-theft groove, 16 - inclined block, 17 - pushing block, 181 - mounting cavity, 182 - plug-in block, 183 - plug-in groove. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0038] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a category, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents that the front and rear associated objects are in an "or" relationship.

[0039] A double insurance lock bolt device provided by the embodiments of the present application will be described in detail below with reference to the drawings and specific embodiments and application scenarios.

[0040] Embodiment 1:

[0041] As Figures 1 to 10As shown, the embodiment of the present application provides a double insurance lock bolt device, which comprises a lock shell 1, a lock sleeve 2, a lock cylinder 3, a first lock bolt 4, a second lock bolt 5, a key 6 and an emergency key 7; the lock shell 1 is slidably provided with a first sliding block 81 and a second sliding block 82, the first sliding block 81 and the second sliding block 82 are both provided with a sliding groove 83, the bottom end of the lock cylinder 3 is provided with an eccentric cylinder 31 which is in sliding fit with the sliding grooves 83, the sliding grooves 83 each comprise a straight groove 84 and an arc groove 85 which are in communication, the sliding groove 83 on the first sliding block 81 has a starting section which is the straight groove 84 and an ending section which is the arc groove 85, the sliding groove 83 on the second sliding block 82 has a starting section which is the arc groove 85 and an ending section which is the straight groove 84;

[0042] The lock cylinder 3 is provided with a locking structure 9 which is used to limit the rotation angle of the lock cylinder 3, after the key 6 / emergency key 7 is inserted into the lock cylinder 3, the lock cylinder 3 is rotated, and the eccentric cylinder 31 pushes the first sliding block 81 to slide / in turn pushes the first sliding block 81 and the second sliding block 82 to slide.

[0043] Further, the locking structure 9 comprises a limiting groove 91, a constraint groove 92, a limiting block 93 and a blade 94, the inner circumferential wall of the lock sleeve 2 is provided with the limiting groove 91 and the constraint groove 92, the outer circumferential wall of the lock cylinder 3 is provided with the limiting block 93 which is in sliding fit with the limiting groove 91, the inner end of the lock cylinder 3 is floatingly provided with the hollow blade 94 which corresponds to the constraint groove 92, the key 6 and the emergency key 7 are both provided with a protrusion 101, the protrusion 101 on the key 6 is located at the front end of the key 6, the protrusion 101 on the emergency key 7 is located at the rear end of the emergency key 7, after the key 6 / emergency key 7 is inserted into the lock cylinder 3, the protrusion 101 thereon cannot lift the blade 94 / lift the blade 94 and make it out of the constraint groove 92.

[0044] Further, the central angle of the limiting groove 91 is greater than the central angle of the constraint groove 92.

[0045] Further, the inner circumferential wall of the lock sleeve 2 is provided with a locking groove 21, the inner end of the lock cylinder 3 is floatingly provided with a hollow first locking blade 32 which corresponds to the locking groove 21, the key 6 and the emergency key 7 are both provided with a lock tooth 102, after the key 6 and the emergency key 7 are inserted into the lock cylinder 3, the lock tooth 102 thereon can lift the first locking blade 32 and make it out of the locking groove 21.

[0046] Further, the inner end of the lock cylinder 3 is floatingly provided with an anti-torque block 33, the inner circumferential wall of the lock sleeve 2 is provided with a clamping groove 22 which corresponds to the anti-torque block 33, the inner end of the lock cylinder 3 is floatingly provided with a plurality of hollow second locking blades 34, one end of the second locking blades 34 which faces the anti-torque block 33 is provided with a V-shaped groove 35, after the key 6 and the emergency key 7 are inserted into the lock cylinder 3, the lock tooth 102 thereon can push the plurality of second locking blades 34 to slide, so that the V-shaped grooves 35 thereon are aligned, the anti-torque block 33 can slide into the V-shaped grooves 35 and out of the clamping groove 22.

[0047] In this embodiment of the present application, since the above structure is adopted, the lock sleeve 2 is fixedly installed in the lock shell 1, the lock shell 1 is fixedly installed on the safe, the lock cylinder 3 is rotatably installed in the lock sleeve 2, the first sliding block 81 and the second sliding block 82 are slidably installed in the lock shell 1, the electromagnetic valve is arranged outside the lock shell 1, the first sliding block 81 and the push rod on the electromagnetic valve abut against the first lock bolt 4 and the second lock bolt 5 respectively, the second sliding block 82 abuts against the push rod on the electromagnetic valve, the first lock bolt 4 can only be driven to slide by the lock cylinder 3 to make the first lock bolt 4 extend or retract, the second lock bolt 5 can be driven to slide by the push rod of the external electromagnetic valve or the second sliding block 82 to make the second lock bolt 5 extend or retract, so that the safe only needs to be equipped with one mechanical lock and one password lock, thereby reducing the manufacturing cost;

[0048] The eccentric cylinder 31 is a cylinder eccentrically arranged at the bottom end of the lock cylinder 3, the sliding directions of the first sliding block 81 and the second sliding block 82 are perpendicular to the corresponding straight slot 84, so that when the eccentric cylinder 31 is located in the straight slot 84, the corresponding first sliding block 81 / second sliding block 82 can be pushed to slide, and when the eccentric cylinder 31 is located in the circular arc slot 85, the corresponding first lock bolt / second lock bolt cannot be pushed to slide;

[0049] When the password lock does not fail, the key 6 is inserted, the protrusion 101 on the key 6 cannot lift the blade 94, the lock teeth 102 on the key 6 can lift the first locking blade 32 to make it separate from the locking slot 21, and can also make the V-shaped grooves 35 on the second locking blades 34 align, the anti-torque block 33 can slide into the V-shaped groove 35 and separate from the clamping groove 22, at this time, the lock cylinder 3 can rotate, the rotation stroke of the lock cylinder 3 is limited by the constraint groove 92, the rotation of the lock cylinder 3 drives the eccentric cylinder 31 to rotate, the rotation of the eccentric cylinder 31 drives the first sliding block 81 to slide, the first lock bolt 4 retracts under the action of the corresponding external spring, and is in the unlocking state, then the correct password is input, the external electromagnetic valve is started, and the push rod on the electromagnetic valve slides to the electromagnetic valve direction by magnetic force, the second lock bolt 5 retracts under the action of the corresponding external spring, at this time, the safe is unlocked;

[0050] When the combination lock malfunctions, by inserting the emergency key 7, the protrusion 101 on the emergency key 7 can lift the blade and disengage it from the constraint groove 92. The locking teeth 102 on the emergency key 7 can lift the first locking blade 32 and disengage it from the locking groove 21, and also align the V-grooves 35 on several second locking blades 34. The anti-torsion block 33 can slide into the V-grooves 35 and disengage from the slot 22. At this time, the lock cylinder 3 can rotate, and the rotation stroke of the lock cylinder 3 is limited by the limiting groove 91. The rotation of the lock cylinder 3 will drive the eccentric cylinder 31 to rotate. The rotation of the eccentric cylinder 31 will first push the first slider 81 to slide. The first bolt 4 will retract under the action of the corresponding external spring and be in the unlocked state. After the first bolt 4 is fully retracted, the rotation of the eccentric cylinder 31 will push the second slider 82 to slide. The sliding of the second slider 82 will push the push rod on the solenoid valve to slide. The second bolt 5 will retract under the action of the corresponding external spring. At this time, the safe is unlocked.

[0051] Before the first bolt 4 is fully retracted, the eccentric cylinder 31 is located in the straight groove 84 of the first bolt 4 and the arc groove 85 of the second bolt 5. After the first bolt 4 is fully retracted, the eccentric cylinder 31 is located in the arc groove 85 of the first bolt 4 and the straight groove 84 of the second bolt 5.

[0052] The center of the limiting groove 91 is larger than the center of the constraint groove 92, so that the rotation stroke of the lock cylinder 3 when the key 6 is inserted into the lock cylinder 3 is less than that when the emergency key 7 is inserted into the lock cylinder 3.

[0053] Example 2:

[0054] like Figures 11 to 14 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, a circular ring block 11 and several locking blocks 12 are floatingly installed inside the lock cylinder 3. Each of the locking blocks 12 is provided with a slanted groove 13. Several pressing blocks 14 are fixedly provided at the bottom of the circular ring block 11, and the pressing blocks 14 correspond to the slanted grooves 13 respectively. The lock sleeve 2 is provided with anti-theft grooves 15 corresponding to the several locking blocks 12. The circular ring block 11 slides downward, which can push the several locking blocks 12 into the corresponding anti-theft grooves 15.

[0055] Furthermore, a pair of symmetrical inclined blocks 16 are fixed at the top of the ring block 11, and a push block 17 corresponding to the inclined block 16 is floatingly installed inside the lock cylinder 3; wherein, the first locking blade 32 can slide to push the pair of push blocks 17 to slide, and the pair of push blocks 17 slide to push the corresponding inclined block 16 to slide downward.

[0056] Furthermore, the lock cylinder 3 has an installation cavity 181 that communicates with the anti-theft hole. A plug block 182 is floatingly installed in the installation cavity 181. The ring block 11 has a plug groove 183 corresponding to the plug block 182. The plug block 182 can be plugged into the corresponding plug groove 183.

[0057] In this embodiment of the present application, due to the above structure, when the lock on the safe is pried by the wrongdoer, the lock core 3 is usually turned by a small tool, and the first locking blades 32 and the second locking blades 34 are turned back and forth to achieve the purpose of unlocking. When the wrongdoer repeatedly turns the first locking blades 32, the pair of push blocks 17 are pushed to slide outward, and the pair of push blocks 17 sliding pushes the corresponding inclined blocks 16 and the circular ring block 11 to slide downward, the plurality of abutting blocks 14 abutting the inclined surface of the corresponding inclined grooves 13, thereby driving the plurality of locking blocks 12 to slide outward and partially extend into the corresponding anti-theft grooves 15, thereby fixing the position of the lock core 3 in the lock sleeve 2, achieving automatic locking of the lock core 3, and improving the safety performance.

[0058] During the sliding process of the circular ring block 11, the circular ring block 11 will completely push the plug block 182 into the installation cavity 181. When the installation cavity 181 is connected with the plug groove 183, the plug block 182 is inserted into the plug hole under the action of the corresponding spring, thereby fixing the circular ring block 11 at the current position, and the plurality of locking blocks 12 partially extend into the corresponding anti-theft grooves 15 and are not easy to slide out.

[0059] When the lock is opened by the normal key 6 / emergency key 7, the sliding amplitude of the first locking blades 32 pushed by the key 6 / emergency key 7 is small, and the first locking blades 32 cannot push the pair of push blocks 17 to slide outward. When the wrongdoer uses a tool to turn the first locking blades 32 in the lock core 3 back and forth, the sliding amplitude of the first locking blades 32 is large, and the first locking blades 32 can push the pair of push blocks 17 to slide outward, so that the plurality of locking blocks 12 partially extend into the corresponding anti-theft grooves 15, thereby achieving automatic locking of the lock core 3.

[0060] After the lock core 3 is locked, the safe can send a short message to the user's mobile phone through the set program, which is convenient for the user to alarm. After the lock is locked, professional personnel need to replace it again to avoid the user's intuitive discovery due to the wrongdoer's damage to other structures in the lock, thereby affecting the subsequent anti-theft performance.

[0061] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the method and apparatus of the present application can be carried out by someone other than the person named in the independent claims, and that the scope of the independent claims is not limited to the person named in the independent claims. In addition, it should be noted that the scope of the method and apparatus of the present application is not limited to performing the functions in the order discussed or illustrated, but can also include performing the functions in a substantially simultaneous manner or in a reverse order, for example, the described method can be performed in an order different from that described, and various steps can be added, omitted, or combined, in addition, features described with reference to certain examples can be combined in other examples.

[0062] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the specific embodiments described above, which are merely illustrative rather than restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims.

Claims

1. A double insurance lock bolt device comprising a lock case, a lock cover, a lock cylinder, a first lock bolt, a second lock bolt, a key and an emergency key, characterized in that, The lock shell is slidably provided with a first sliding block and a second sliding block, the first sliding block and the second sliding block are both provided with sliding grooves, the lock core is provided with an eccentric cylinder at the bottom end and is in sliding fit with the sliding grooves, the sliding grooves both include a straight groove and an arc groove, the sliding groove on the first sliding block has a straight groove at the starting section and an arc groove at the ending section, and the sliding groove on the second sliding block has an arc groove at the starting section and a straight groove at the ending section. The lock core is provided with a locking structure for limiting the rotation angle of the lock core, after the key / emergency key is inserted into the lock core, the eccentric cylinder pushes the first sliding block to slide / sequentially pushes the first sliding block and the second sliding block to slide.

2. A dual security deadbolt device according to claim 1, wherein, The locking structure includes a limiting groove, a constraint groove, a limiting block and a blade, the limiting groove and the constraint groove are arranged on the inner circumferential wall of the lock sleeve, the limiting block is arranged on the outer circumferential wall of the lock core in sliding fit with the limiting groove, the hollow blade is floatingly arranged at the inner end of the lock core and corresponds to the constraint groove, the protrusions are arranged on the key and the emergency key, the protrusion on the key is located at the front end of the key, the protrusion on the emergency key is located at the rear end of the emergency key, and the protrusions on the key / emergency key cannot lift the blade / lift the blade and make it out of the constraint groove after the key / emergency key is inserted into the lock core.

3. A dual security deadbolt device according to claim 2, wherein, The central angle of the limiting groove is larger than the central angle of the constraint groove.

4. A dual security deadbolt device according to claim 1, wherein, The inner circumferential wall of the lock sleeve is provided with a locking groove, the hollow first locking blade is floatingly arranged at the inner end of the lock core and corresponds to the locking groove, the locking teeth are arranged on the key and the emergency key, and the locking teeth on the key and the emergency key can lift the first locking blade and make it out of the locking groove after the key and the emergency key are inserted into the lock core.

5. A dual security deadbolt device according to claim 3, wherein, The anti-torque block is floatingly arranged at the inner end of the lock core, the clamping groove corresponding to the anti-torque block is arranged on the inner circumferential wall of the lock sleeve, the hollow second locking blades are floatingly arranged at the inner end of the lock core, the V-shaped groove is arranged at one end of the second locking blades facing the anti-torque block, and the locking teeth on the key and the emergency key can push the second locking blades to slide, so that the V-shaped grooves are aligned, the anti-torque block can be slid into the V-shaped groove and out of the clamping groove after the key and the emergency key are inserted into the lock core.

6. A dual security deadbolt device according to claim 1, wherein, The circular ring block and the locking blocks are floatingly arranged in the lock core, the inclined grooves are arranged on the locking blocks, the bottom end of the circular ring block is fixedly provided with the pressing blocks corresponding to the inclined grooves. The lock sleeve is provided with the anti-theft grooves corresponding to the locking blocks, and the circular ring block can push the locking blocks into the corresponding anti-theft grooves by sliding downward.

7. A dual security deadbolt device according to claim 6 wherein, The top end of the circular ring block is fixedly provided with a pair of symmetrical inclined blocks, and the pushing blocks corresponding to the inclined blocks are floatingly arranged in the lock core. The first locking blade can push the pair of pushing blocks to slide, and the pair of pushing blocks can push the corresponding inclined blocks to slide downward.

8. A dual security deadbolt device according to claim 6, wherein, The installation cavity in communication with the anti-theft hole is arranged in the lock core, the insertion block is floatingly arranged in the installation cavity, the insertion groove corresponding to the insertion block is arranged on the circular ring block, and the insertion block can be inserted into the corresponding insertion groove.

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