Automatic telescopic handle lock mechanism

Abstract

The utility model discloses an automatic telescopic handle lock mechanism, and relates to the technical field of safety box locks. Comprising a handle lock mechanism body, and the handle lock mechanism body comprises a lock shell, an unlocking assembly, a handle automatic telescopic assembly and an emergency handle telescopic assembly, the unlocking assembly comprises a handle telescopic shaft, a sliding plate, a spring bolt and a transverse pull rod. Considering the transportation and safety problems caused by the fact that the safe case handle protrudes out of the case door, the handle and the safe case lock are integrated into one part, the handle is designed to be telescopic, the telescopic handle and the handle lock mechanism body do not need to be installed separately, the integrated design is achieved, the manufacturing cost is reduced, and the installation cost is also reduced. And the design that the telescopic handle is embedded into the safety box door has an anti-prying function, the use safety is further guaranteed, the design of the handle automatic telescopic assembly and the emergency handle telescopic assembly makes use more intelligent, meanwhile, the unlocking function of a traditional mode is reserved, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of safe lock technology, specifically to an automatic telescopic handle lock mechanism. Background Technology

[0002] A safe (or box) is a special type of container. Based on their function, they are mainly divided into fireproof safes, anti-theft safes, anti-magnetic safes, fireproof and anti-magnetic safes, and fireproof and anti-theft safes, etc. Each type of safe has its own national standard. Most safes on the market are the first two types. Based on different password working principles, anti-theft safes (or boxes) can also be divided into mechanical safes and electronic safes. The former is characterized by its lower price and more reliable performance.

[0003] Currently, the function of the handle on the door of a safe is to open the door. The handle comes in various shapes, but the handle mechanism is often located on the outside of the safe door in a protruding position. This protruding position is not conducive to the safe's transportation, as it is easily damaged by collisions during transportation. Furthermore, the protruding handle provides a point of leverage for criminals to pry open the lock, greatly reducing security. Utility Model Content

[0004] This invention provides an automatic telescopic handle lock mechanism to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic telescopic handle lock mechanism, comprising a handle lock mechanism body, wherein the handle lock mechanism body includes a lock shell and an unlocking component, an automatic telescopic handle component, and an emergency telescopic handle component disposed inside the lock shell;

[0006] The unlocking assembly includes a handle telescopic shaft, a sliding plate, a bolt, and a horizontal lever. The surface of the handle telescopic shaft is provided with two rows of toothed grooves. A drive shaft is movably installed inside the handle telescopic shaft. One end of the drive shaft extends to the outside of the lock housing and is provided with a triangular disc sleeve. The bolt is movably installed on one side of the lock housing and is driven by the triangular disc sleeve. The sliding plate is movably installed inside the lock housing and is used to drive the bolt. The bolt is rotatably installed inside the lock housing and is movably engaged with the horizontal lever. The end of the handle telescopic shaft away from the drive shaft extends to the outside of the lock housing and is provided with a telescopic handle.

[0007] The automatic retractable handle assembly includes a geared motor, a control gear, a gear control shaft, a telescopic shaft drive gear, and a clutch control shaft. The geared motor is located inside the lock housing, and its output end has a motor gear that meshes with the control gear. The gear control shaft is located at one end of the control gear and is connected to the control gear in a transmission manner. The telescopic shaft drive gear is sleeved on the gear control shaft and meshes with one row of teeth. One end of the clutch control shaft passes through the gear control shaft and the interior of the control gear and extends to one end of the slide plate. One end of the control gear has a drive ramp that abuts against one end of the slide plate.

[0008] The emergency handle telescopic assembly includes an emergency unlocking rod, an emergency unlocking gear, and a linkage assembly. One end of the emergency unlocking rod extends into the interior of the lock housing and is equipped with an emergency drive rack. There are two emergency unlocking gears that rotate synchronously. One of the emergency unlocking gears is located on one side of the emergency drive rack, and the other emergency unlocking gear meshes with one row of teeth. The linkage assembly is located inside the lock housing. One end of the linkage assembly is driven by the emergency unlocking rod, and the other end extends to the end of the clutch control shaft away from the slide plate.

[0009] Furthermore, the lock housing is provided with a first fixed cylinder and a second fixed cylinder on the other side. The first fixed cylinder has a guide groove inside. The handle telescopic shaft is sleeved inside the first fixed cylinder and a pin is provided on the handle telescopic shaft that is slidably sleeved with the guide groove. The second fixed cylinder is movably sleeved with a rotating arm central shaft sleeve. The end of the transmission shaft away from the handle telescopic shaft extends into the interior of the rotating arm central shaft sleeve and is connected to the rotating arm central shaft sleeve through the pin. The triangular disc shift sleeve is sleeved on the outside of the rotating arm central shaft sleeve.

[0010] Furthermore, at least one latch drive crank is symmetrically arranged on the surface of the triangular dial sleeve, and a handle crank is also provided on the surface of the triangular dial sleeve. The interior of the horizontal pull rod is provided with an oblong hole that movably engages with one end of the handle crank, and the horizontal pull rod is also provided with a groove that engages with one end of the latch extending to the outside of the lock housing.

[0011] Furthermore, the lock housing is provided with a fixed cylinder three that is connected to the fixed cylinder one. The end of the fixed cylinder three that is away from the fixed cylinder one extends to one end of the central shaft sleeve of the rotating arm. The fixed cylinder three is provided with an extension limit and a locking end limit and an unlocking end limit respectively located on both sides of the extension limit. The handle telescopic shaft is provided with an extension limit block that extends to the space between the locking end limit and the unlocking end limit.

[0012] Furthermore, the control gear has a push groove at the end away from the drive inclined surface, one end of the gear control shaft extends into the interior of the control gear and has a boss that extends into the push groove at one end, the outer side of the gear control shaft has a through hole and a steel ball is provided inside the through hole, the interior of the telescopic shaft drive gear has a gear groove, and one side of the steel ball extends into the interior of the gear groove.

[0013] Furthermore, the clutch control shaft is provided with a coarse section and a fine section, and a return spring located at one end of the gear control shaft is also sleeved on the clutch control shaft. The automatic extension and retraction assembly of the handle also includes an extension end travel switch and a locking travel switch disposed inside the lock housing. One end of the extension shaft drive gear is provided with a gear protrusion that matches the switch spring of the extension end travel switch.

[0014] Furthermore, the lock housing is provided with a limiting shaft extending into the interior of the slide plate, one end of the rotating arm center shaft sleeve is provided with a bushing protrusion that matches the switch spring of the locking limit switch, the handle telescopic shaft is provided with a telescopic shaft groove, one end of the slide plate is provided with an extension into the interior of the telescopic shaft groove, and the limiting shaft is connected to a pressure plate located on one side of the slide plate by screws.

[0015] Furthermore, a locking swing block is provided at one end of the locking tongue located inside the lock housing, and a sliding plate groove and a sliding plate drive block are provided on one side of the sliding plate. The sliding plate groove is movably connected with the locking swing block, and a stepped portion is provided at one end of the sliding plate drive block. The stepped portion contacts one side of the drive inclined surface and one end of the clutch control shaft, respectively.

[0016] Furthermore, one side of the emergency unlocking lever is provided with a lever guide protrusion, and one end of the lever guide protrusion is provided with a bent portion. The linkage assembly includes an emergency unlocking swing arm, an emergency unlocking connecting rod, and an emergency unlocking rocker arm. One end of the emergency unlocking swing arm is rotatably disposed inside the lock housing, and the other end is provided with a swing arm groove that engages with one end of the bent portion.

[0017] Furthermore, one end of the emergency unlocking linkage is hinged to the middle of the emergency unlocking swing arm, and the other end is hinged to one end of the emergency unlocking rocker arm. The emergency unlocking rocker arm is L-shaped, and the L-shaped corner of the emergency unlocking rocker arm is rotatably connected to the inside of the lock case. The end of the emergency unlocking rocker arm away from the emergency unlocking linkage extends to the end of the clutch control shaft away from the stepped part.

[0018] Compared with the prior art, the present invention provides an automatic telescopic handle lock mechanism, which has the following advantages:

[0019] This automatic telescopic handle lock mechanism addresses the transportation and security issues associated with protruding safe handles. By integrating the handle and safe lock into a single component, and designing the handle to be telescopic, it eliminates the need for separate installation of the telescopic handle and the main handle lock mechanism. This integrated design reduces both manufacturing and installation costs. Furthermore, the telescopic handle's embedding within the safe door provides anti-pry protection, further enhancing security. The design of both the automatic telescopic handle component and the emergency telescopic handle component makes the system more intelligent while retaining traditional unlocking functionality, making it more convenient to use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the triangular disc dial sleeve structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the lock housing of this utility model;

[0023] Figure 4 This is a schematic diagram of the steel ball structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the three-structure fixed cylinder of this utility model;

[0025] Figure 6 This is a schematic diagram of the slide plate and telescopic shaft groove of this utility model in a separated state;

[0026] Figure 7 This is a schematic diagram of the sliding plate of this utility model being inserted into the telescopic shaft groove.

[0027] Figure 8 This is a schematic diagram of the driving inclined plane structure of this utility model;

[0028] Figure 9 This is a schematic diagram showing the locking tongue of this utility model being engaged in the slot.

[0029] Figure 10 This is a schematic diagram of the locking tongue and the slot in the separated state of this utility model;

[0030] Figure 11 This is a schematic diagram showing the contact state between the drive ramp, the clutch control ball, and the stepped portion of this utility model.

[0031] Figure 12 This is a cross-sectional view of the push groove and boss structure of this utility model;

[0032] Figure 13 This is a cross-sectional view of the gear groove and steel ball connection state of this utility model;

[0033] Figure 14 This is a schematic diagram showing the connection between the thick section of the clutch control shaft and the steel ball in this utility model;

[0034] Figure 15 This is a schematic diagram showing the connection between the thin segment of the clutch control shaft and the steel ball in this utility model;

[0035] Figure 16 This is a schematic diagram showing the contact state between the bushing protrusion and the switch spring of the locking limit switch of this utility model.

[0036] Figure 17 This is a schematic diagram showing the connection state between the pin and the guide groove of this utility model;

[0037] Figure 18 This is a schematic diagram showing the connection between the drive shaft and the central bushing of the rotating arm of this utility model;

[0038] Figure 19 This is a schematic diagram showing the connection between the main body of the handle lock mechanism of this utility model and the safe door;

[0039] Figure 20 This is a side view of the handle lock mechanism body of this utility model connected to the safe door.

[0040] In the diagram: 1. Handle lock mechanism body; 11. Lock housing; 12. Unlocking assembly; 121. Handle telescopic shaft; 1211. Tooth groove; 1212. Pin one; 1213. Extension limit block; 1214. Telescopic shaft groove; 122. Slide plate; 1221. Slide plate groove; 1222. Slide plate drive block; 1223. Stepped section; 123. Lock tongue; 1231. Locking swing block; 124. Horizontal pull rod; 1241. Slot; 125. Drive shaft; 1251. Pin two; 26. Triangular dial sleeve; 1261. Latch drive crank; 1262. Handle crank; 127. Telescopic handle; 13. Automatic handle telescopic assembly; 131. Gear motor; 1311. Motor gear; 132. Control gear; 1321. Drive ramp; 1322. Push groove; 133. Gear control shaft; 1331. Boss; 1332. Steel ball; 134. Telescopic shaft drive gear; 1341. Gear groove; 1342. Gear protrusion; 135. Clutch control shaft; 1351, coarse section; 1352, fine section; 1353, return spring; 136, extension end limit switch; 137, locking limit switch; 138, switch spring; 14, emergency handle telescopic assembly; 141, emergency unlocking lever; 142, emergency unlocking gear; 143, linkage assembly; 1431, emergency unlocking swing arm; 1432, emergency unlocking linkage; 1433, emergency unlocking rocker arm; 1434, swing arm groove; 144, emergency drive gear 145. Pull rod guide protrusion; 1451. Bending part; 15. Fixed cylinder one; 151. Guide groove; 16. Fixed cylinder two; 161. Rotary arm center bushing; 162. Bushing protrusion; 17. Fixed cylinder three; 171. Extension limit; 172. Locking end limit; 173. Unlocking end limit; 18. Limit shaft; 19. Pressure plate; 2. Safe door; 21. Latch; 22. Electronic panel; 23. Mechanical lock; 24. Mechanical lock crank; 25. Emergency unlocking hole. Detailed Implementation

[0041] 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.

[0042] Please see Figure 1-20 This utility model discloses an automatic telescopic handle lock mechanism, including a handle lock mechanism body 1. The handle lock mechanism body 1 includes a lock shell 11 and an unlocking component 12, an automatic handle telescopic component 13, and an emergency handle telescopic component 14 disposed inside the lock shell 11.

[0043] The unlocking assembly 12 includes a handle telescopic shaft 121, a sliding plate 122, a latch 123, and a horizontal pull rod 124. The surface of the handle telescopic shaft 121 is provided with two rows of toothed grooves 1211. A drive shaft 125 is movably disposed inside the handle telescopic shaft 121. One end of the drive shaft 125 extends to the outside of the lock housing 11 and is provided with a triangular disc dial sleeve 126. The latch 123 is movably disposed on one side of the lock housing 11 and is driven by the triangular disc dial sleeve 126. The sliding plate 122 is movably disposed inside the lock housing 11 and is used to drive the latch 123. The latch 123 is rotatably disposed inside the lock housing 11 and is movably engaged with the horizontal pull rod 124. The end of the handle telescopic shaft 121 away from the drive shaft 125 extends to the outside of the lock housing 11 and is provided with a telescopic handle 127.

[0044] The automatic retractable handle assembly 13 includes a reduction motor 131, a control gear 132, a gear control shaft 133, a telescopic shaft drive gear 134, and a clutch control shaft 135. The reduction motor 131 is located inside the lock housing 11. The output end of the reduction motor 131 is provided with a motor gear 1311 that meshes with the control gear 132. The gear control shaft 133 is located at one end of the control gear 132 and is connected to the control gear 132 in a transmission manner. The telescopic shaft drive gear 134 is sleeved on the gear control shaft 133 and meshes with one row of tooth grooves 1211. One end of the clutch control shaft 135 passes through the interior of the gear control shaft 133 and the control gear 132 and extends to one end of the slide plate 122. One end of the control gear 132 is provided with a drive inclined surface 1321 that abuts against one end of the slide plate 122.

[0045] The emergency handle telescopic assembly 14 includes an emergency unlocking lever 141, an emergency unlocking gear 142, and a linkage group 143. One end of the emergency unlocking lever 141 extends into the interior of the lock housing 11 and is provided with an emergency drive rack 144. There are two emergency unlocking gears 142, and the emergency unlocking gears 142 rotate synchronously. One of the emergency unlocking gears 142 is located on one side of the emergency drive rack 144, and the other emergency unlocking gear 142 meshes with one row of tooth grooves 1211. The linkage group 143 is located inside the lock housing 11. One end of the linkage group 143 is driven by the emergency unlocking lever 141, and the other end extends to the end of the clutch control shaft 135 away from the slide plate 122.

[0046] Specifically, the lock housing 11 is provided with a first fixed cylinder 15 and a second fixed cylinder 16 on the other side. The first fixed cylinder 15 has a guide groove 151 inside. The handle telescopic shaft 121 is sleeved inside the first fixed cylinder 15 and is provided with a first pin 1212 that is slidably sleeved with the guide groove 151. The second fixed cylinder 16 is movably sleeved with a rotating arm center shaft sleeve 161. The end of the transmission shaft 125 away from the handle telescopic shaft 121 extends into the interior of the rotating arm center shaft sleeve 161 and is connected to the rotating arm center shaft sleeve 161 through the second pin 1251. The triangular disc sleeve 126 is sleeved on the outside of the rotating arm center shaft sleeve 161.

[0047] In this embodiment, when the telescopic handle 127 is extended, after the horizontal pull rod 124 is unlocked, the pin 1212 disengages from the guide groove 151, and the telescopic handle 127 can be rotated to unlock. When the telescopic handle 127 is rotated, the handle telescopic shaft 121 drives the transmission shaft 125 to rotate. The transmission shaft 125 is polygonal, and the interior of the handle telescopic shaft 121 is provided with a hole that matches the transmission shaft 125. When the transmission shaft 125 rotates, it drives the rotating arm center bushing 161 and the triangular disc dial sleeve 126 to rotate. The triangular disc dial sleeve 126 moves the horizontal pull rod 124 to slide through the handle crank 1262 to achieve the locking action. Only when the locking action is in the correct position, that is, when the telescopic handle 127 is fully closed, and the pin 1212 on the handle telescopic shaft 121 is aligned with the guide groove 151, can the handle telescopic shaft 121 retract smoothly. After retraction, the telescopic handle 127 cannot rotate.

[0048] Specifically, at least one latch drive crank 1261 is symmetrically arranged on the surface of the triangular dial sleeve 126, and a handle crank 1262 is also provided on the surface of the triangular dial sleeve 126. The interior of the horizontal pull rod 124 is provided with an oblong hole that is movably sleeved with one end of the handle crank 1262. The horizontal pull rod 124 is also provided with a groove 1241 that engages with one end of the latch 123 extending to the outside of the lock housing 11.

[0049] In this embodiment, the latch drive crank 1261 is used to connect to the latch 21 on the safe door 2, driving the latch 21 to lock or unlock the safe door 2. Since the handle crank 1262 rotates, the oblong hole can prevent the handle crank 1262 from getting stuck, increasing the movement space of the handle crank 1262. When the latch 123 flips and gets into the slot 1241, the horizontal pull rod 124 is restricted from moving, making the handle crank 1262 unable to move, thus locking the telescopic handle 127, handle telescopic shaft 121, drive shaft 125 and triangular dial sleeve 126, preventing rotation.

[0050] Specifically, the lock housing 11 has a fixed cylinder 3 17 connected to the fixed cylinder 15 inside. The end of the fixed cylinder 3 17 away from the fixed cylinder 15 extends to one end of the rotating arm central shaft sleeve 161. The fixed cylinder 3 17 has an extension limit 171 inside and locking end limit 172 and unlocking end limit 173 located on both sides of the extension limit 171. The handle telescopic shaft 121 has an extension limit block 1213 inside, which extends between the locking end limit 172 and the unlocking end limit 173.

[0051] In this embodiment, the telescopic shaft drive gear 134 drives the handle telescopic shaft 121 to extend through the toothed groove 1211 on the handle telescopic shaft 121. When the extension ends, the gear protrusion 1342 on the telescopic shaft drive gear 134 touches the switch spring 138 of the extension end limit switch 136. The switch spring 138 presses down the extension end limit switch 136, the reduction motor 131 stops supplying power, and the extension limit block 1213 touches the extension limit 171, so that the handle telescopic shaft 121 no longer extends. The extension limit 171 means that the extension handle 127 extends when the handle telescopic shaft 121 extends. The rotatable telescopic handle 127 can realize the unlocking action. There is a limit to the degree of rotation of the telescopic handle 127 to unlock. It cannot be rotated indefinitely, so there is an unlocking end limit 173. Similarly, there is also a limit when reversing the telescopic handle 127 to lock, that is, the locking end limit 172. There is no extra rotation, making the operation more convenient.

[0052] Specifically, the control gear 132 has a push groove 1322 at one end away from the drive inclined surface 1321, the gear control shaft 133 extends into the interior of the control gear 132 and has a boss 1331 extending into the push groove 1322 at one end, the gear control shaft 133 has a through hole on the outside and a steel ball 1332 is disposed inside the through hole, the telescopic shaft drive gear 134 has a gear groove 1341 inside, and one side of the steel ball 1332 extends into the interior of the gear groove 1341.

[0053] In this embodiment, the motor gear 1311 at the output end of the reduction motor 131 drives the control gear 132 to rotate 100°. The driving inclined surface 1321 at one end of the control gear 132 abuts against the stepped portion 1223 at one end of the slide block 1222, causing the slide block 1222 to move the slide 122 in translation. At the same time, the pushing groove 1322 at the other end of the control gear 132 rotates and hits the boss 1331 on the gear control shaft 133, continuing to rotate. The boss 1331 drives the gear control shaft 133 to rotate, and the gear control shaft 133 rotates on the side of the gear control shaft 133. There is a through hole on the surface, and a steel ball 1332 is installed inside. When the steel ball 1332 contacts the thick section 1351 of the clutch control shaft 135, the steel ball 1332 is higher than the cylindrical surface of the gear control shaft 133. The telescopic shaft drive gear 134 has a gear groove 1341 on the inner side. When the steel ball 1332 is placed inside the gear groove 1341, the gear control shaft 133 can drive the telescopic shaft drive gear 134 to rotate through the steel ball 1332, thereby driving the handle telescopic shaft 121 to move through the tooth groove 1211, realizing the telescopic movement of the telescopic handle 127.

[0054] Specifically, the clutch control shaft 135 is provided with a thick section 1351 and a thin section 1352. The clutch control shaft 135 is also fitted with a return spring 1353 located at one end of the gear control shaft 133. The automatic extension and retraction assembly 13 of the handle also includes an extension end travel switch 136 and a locking travel switch 137 disposed inside the lock housing 11. One end of the extension shaft drive gear 134 is provided with a gear protrusion 1342 that matches the switch spring 138 of the extension end travel switch 136.

[0055] In this embodiment, the return spring 1353 is configured such that when one end of the clutch control shaft 135 is abutted by one end of the connecting rod assembly 143, the return spring 1353 is compressed. When the clutch control shaft 135 loses contact with one end of the connecting rod assembly 143, the return spring 1353 rebounds and abuts against the clutch control shaft 135 to reset. Simultaneously, the clutch control shaft 135 can drive the connecting rod assembly 143 to reset. The gear protrusion 1342 drives the gear 134 to rotate with the telescopic shaft. When the handle telescopic shaft 121 is extended to its full position, the gear protrusion 1342 abuts against the extension end limit switch 1. The switch spring 138 of 36 causes the reduction motor 131 to stop rotating. There are two extension end limit switches 136, which are arranged side by side. There are also two gear protrusions 1342, which are located at both ends of the telescopic shaft drive gear 134 and have different protrusion directions. The two gear protrusions 1342 correspond to the switch springs 138 of the two extension end limit switches 136, and are used to detect the extension and retraction states of the handle telescopic shaft 121, respectively.

[0056] Specifically, the lock housing 11 has a limiting shaft 18 extending into the slide plate 122 at one end, the central bushing 161 of the rotating arm has a bushing protrusion 162 that matches the switch spring 138 of the locking limit switch 137 at one end, the handle telescopic shaft 121 has a telescopic shaft groove 1214, the slide plate 122 has a part extending into the telescopic shaft groove 1214 at one end, and the limiting shaft 18 is connected to a pressure plate 19 located on one side of the slide plate 122 by screws.

[0057] In this embodiment, there is at least one limiting shaft 18. The limiting shaft 18 is used to restrict the movement direction of the slide plate 122, so that the movement direction of the slide plate 122 can only be consistent with the axial direction of the clutch control shaft 135. The pressure plate 19 is used to further ensure the movement stability of the slide plate 122. After locking, the bushing protrusion 162 abuts against the switch spring 138 of the locking limit switch 137 to trigger the locking limit switch 137. The reduction motor 131 receives the locking command and flips, causing the telescopic shaft drive gear 134 to reverse and drive the handle telescopic shaft 121 to retract into the fixed cylinder 17, so that the telescopic handle 127 extending out of the safe door 2 retracts into the safe door 2, making it safer to use.

[0058] Specifically, the locking tongue 123 is provided with a locking swing block 1231 at one end inside the lock housing 11, and the sliding plate 122 is provided with a sliding plate groove 1221 and a sliding plate drive block 1222 on one side. The sliding plate groove 1221 is movably sleeved with the locking swing block 1231, and the sliding plate drive block 1222 is provided with a stepped portion 1223 at one end. The stepped portion 1223 is in contact with one side of the drive inclined surface 1321 and one end of the clutch control shaft 135.

[0059] In this embodiment, the handle telescopic shaft 121 is provided with a telescopic shaft groove 1214. When the telescopic handle 127 retracts, the slide plate 122 engages with the telescopic shaft groove 1214, locking the handle telescopic shaft 121. When the slide plate 122 is engaged with the telescopic shaft groove 1214, the slide plate 122 drives the locking rocker block 1231 to deflect. The locking rocker block 1231 drives the locking tongue 123 to engage with the slot 1241, thus locking the horizontal pull rod 124. In other words, after the telescopic handle 127 retracts, the automatic telescopic handle 127 locking mechanism enters the locked state. When unlocking, the control gear 132 begins to rotate 100°. The driving inclined surface 1321 on the control gear 132 abuts against the stepped portion 1223, and the stepped portion 1223 drives the slide plate driving block 122. 2. The slide plate 122 moves towards the locking tongue 123. One end of the slide plate 122 is pulled out from the inside of the telescopic shaft groove 1214, releasing the lock on the handle telescopic shaft 121. At the same time, the slide plate groove 1221 is driven by the translation of the slide plate 122, causing the locking swing block 1231 to deflect. After the locking swing block 1231 deflects, it causes the locking tongue 123 to disengage from the inside of the slot 1241, releasing the lock on the horizontal pull rod 124. To extend the telescopic handle 127, the lock on the handle telescopic shaft 121 must first be released. Only after the lock is released can the handle telescopic shaft 121 extend. After it is fully extended, rotating the telescopic handle 127 can open the safe. The cooperation between the telescopic shaft groove 1214 and the slide plate 122 further ensures the stability of the handle telescopic shaft 121 when it retracts.

[0060] Specifically, the emergency unlocking lever 141 has a lever guide protrusion 145 on one side, and a bent portion 1451 at one end of the lever guide protrusion 145. The linkage group 143 includes an emergency unlocking swing arm 1431, an emergency unlocking connecting rod 1432, and an emergency unlocking rocker arm 1433. One end of the emergency unlocking swing arm 1431 is rotatably disposed inside the lock housing 11, and the other end is provided with a swing arm groove 1434 that engages with one end of the bent portion 1451.

[0061] In this embodiment, when the emergency drive rack 144 of the emergency unlocking lever 141 is not activated, the emergency drive rack 144 and the emergency unlocking gear 142 are disengaged. When the handle telescopic shaft 121 extends or retracts, the handle telescopic shaft 121 drives the emergency unlocking gear 142 through the tooth groove 1211, which only rotates freely with very little resistance and does not affect the automatic extension or retraction of the handle telescopic shaft 121. When the emergency drive rack 144 of the emergency unlocking lever 141 is not activated, the emergency unlocking rocker arm 1431 is limited by the lever guide protrusion 145, and the emergency unlocking rocker arm 1433 is at the bottom closest to the inner wall of the lock housing 11, without touching the clutch control shaft 135. The steel ball 1332 is tangent to the thick section 1351 of the clutch control shaft 135, and the protrusion of the steel ball 1332 is placed inside the gear groove 1341 inside the telescopic shaft drive gear 134. The gear control shaft 133 and the telescopic shaft drive gear 134 are radially fixed relative to each other.

[0062] Specifically, one end of the emergency unlocking linkage 1432 is hinged to the middle of the emergency unlocking swing arm 1431, and the other end is hinged to one end of the emergency unlocking rocker arm 1433. The emergency unlocking rocker arm 1433 is L-shaped, and the L-shaped corner of the emergency unlocking rocker arm 1433 is rotatably connected to the inside of the lock housing 11. The end of the emergency unlocking rocker arm 1433 away from the emergency unlocking linkage 1432 extends to the end of the clutch control shaft 135 away from the stepped portion 1223.

[0063] In this embodiment, when the electronic components malfunction, the geared motor 131 cannot be driven, and the lock cannot be opened. In this case, a mechanical emergency unlocking is required. Emergency unlocking requires extending and rotating the handle. This is driven by pulling the emergency unlocking lever 141 outwards. The emergency unlocking lever 141 is equipped with an emergency drive rack 144. Before the emergency drive rack 144 engages the emergency unlocking gear 142, the lever guide protrusion 145 on the emergency unlocking lever 141 drives the emergency unlocking swing arm 1431 to swing. The emergency unlocking swing arm 1431 then pulls the emergency unlocking connecting rod 1432. The emergency unlocking linkage 1432 pulls the emergency unlocking rocker arm 1433, causing one end of the emergency unlocking rocker arm 1433 to move against the clutch control shaft 135. The clutch control shaft 135 controls the protrusion and retraction of a steel ball 1332 to disengage the transmission from the reduction motor 131 to the handle telescopic shaft 121. At the same time, the locking rocker block 1231 flips and disengages from the slot 1241, unlocking the horizontal pull rod 124. The sliding plate 122 also disengages from the telescopic shaft slot 1214, unlocking the handle telescopic shaft 121. The emergency unlocking lever 141 is pulled outward. In the initial stage, the emergency unlocking rocker arm 1431 is guided by the lever. Controlled by the bend 1451 of the protrusion 145, the emergency unlocking swing arm 1431 swings. The emergency unlocking swing arm 1431 pulls the emergency unlocking rocker arm 1433 through the emergency unlocking linkage 1432. The emergency unlocking rocker arm 1433 gradually rises and lifts the clutch control shaft 135. The steel ball 1332 is tangential to the thin section 1352 of the clutch control shaft 135. The steel ball 1332 retracts, and the gear control shaft 133 and the telescopic shaft drive gear 134 are radially disengaged. The force transmitted by the reduction motor 131 can no longer drive the telescopic shaft drive gear 134 to rotate, the power is interrupted, and the handle is simultaneously released. When the telescopic shaft 121 drives the telescopic shaft drive gear 134 to rotate through the tooth groove 1211, the telescopic shaft drive gear 134 rotates idly and will not drive the gear control shaft 133 to rotate. The emergency unlocking lever 141 continues to pull outward, and the emergency drive rack 144 meshes with the emergency unlocking gear 142. The two emergency unlocking gears 142 rotate synchronously, and the other emergency unlocking gear 142 drives the handle telescopic shaft 121 to extend through the meshing tooth groove 1211, realizing the emergency extension of the handle telescopic shaft 121. After the handle telescopic shaft 121 is extended to the position, the telescopic handle 127 can be rotated to open the safe.

[0064] Under normal circumstances, the emergency drive rack 144 and the emergency unlocking gear 142 are disengaged. They only engage after the emergency drive rack 144 has moved a certain distance, making it a type of intermittent transmission structure. Because there is no engagement, the emergency unlocking gear 142 idles, resulting in very little resistance to the handle telescopic shaft 121 driven by the reduction motor 131. The distance difference between the two ends of the bent portion 1451 is the swing amplitude of the emergency unlocking swing arm 1431, and the length of the bent portion 1451 is equal to the length of the emergency drive rack 144. The emergency drive rack 144 is pulled by the emergency unlocking lever 141 and moves the length of the bent part 1451. The distance difference between the two ends of the bent part 1451 causes the lever guide protrusion 145 to drive the emergency unlocking swing arm 1431 to swing. This causes one end of the emergency unlocking rocker arm 1433 to push up the clutch control shaft 135, so that the thin segment 1352 is tangent to the steel ball 1332. The steel ball 1332 retracts, and the telescopic shaft drive gear 134 is disengaged from the gear control shaft 133.

[0065] For details, please refer to Figures 19-20 The handle lock mechanism body 1 is installed on the safe door 2. The safe door 2 is installed on the safe. One side of the safe door 2 is provided with at least one set of latches 21, and the other side is provided with an electronic panel 22 for controlling the automatic extension and retraction assembly 13 of the handle. One side of the safe door 2 is also provided with a mechanical lock 23, and the other side is provided with an emergency unlocking hole 25 corresponding to the mechanical lock 23. The mechanical lock 23 is movably hinged to the emergency unlocking lever 141 through a mechanical lock crank 24. By inserting a mechanical key into the mechanical lock 23 through the emergency unlocking hole 25, the mechanical lock crank 24 can be rotated to pull the emergency unlocking lever 141 for emergency unlocking, realizing the manual extension and retraction of the telescopic handle 127. The automatic extension and retraction assembly 13 of the handle can be controlled by an electronic key through the electronic panel 22 to realize the automatic extension and retraction of the telescopic handle 127. When the telescopic handle 127 is retracted, it is embedded inside the safe door 2. Please continue reading. Figures 19-20 The safe door 2 has at least three sets of latches 21, which are driven by two latch drive cranks 1261 and a horizontal pull rod 124 respectively, thus providing higher security.

[0066] In summary, this automatic telescopic handle lock mechanism addresses the transportation and security issues associated with a safe handle protruding from the door by integrating the handle and the safe lock into a single component. The handle is designed to be telescopic, eliminating the need to separately install the telescopic handle 127 and the main body of the handle lock mechanism 1. This integrated design reduces both manufacturing and installation costs. Furthermore, the design of the telescopic handle 127 embedded inside the safe door 2 provides anti-pry protection, further ensuring safety. The design of the automatic telescopic handle component 13 and the emergency telescopic handle component 14 enhances intelligence while retaining traditional unlocking functionality, making it more convenient to use.

[0067] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic telescopic handle lock mechanism, comprising a handle lock mechanism body (1), characterized in that: The main body (1) of the handle lock mechanism includes a lock shell (11) and an unlocking component (12), an automatic handle extension component (13), and an emergency handle extension component (14) disposed inside the lock shell (11); The unlocking assembly (12) includes a handle telescopic shaft (121), a sliding plate (122), a latch (123), and a horizontal pull rod (124). The surface of the handle telescopic shaft (121) is provided with two rows of toothed grooves (1211). A drive shaft (125) is movably arranged inside the handle telescopic shaft (121). One end of the drive shaft (125) extends to the outside of the lock housing (11) and is provided with a triangular disc dial sleeve (126). The latch (123) The sliding plate (122) is movably disposed on one side of the lock housing (11) and driven by the triangular disk dial sleeve (126). The sliding plate (122) is movably disposed inside the lock housing (11) and is used to drive the bolt (123). The bolt (123) is rotatably disposed inside the lock housing (11) and is movably engaged with the horizontal pull rod (124). The end of the handle telescopic shaft (121) away from the drive shaft (125) extends to the outside of the lock housing (11) and is provided with a telescopic handle (127). The automatic extension and retraction assembly (13) of the handle includes a reduction motor (131), a control gear (132), a gear control shaft (133), a telescopic shaft drive gear (134), and a clutch control shaft (135). The reduction motor (131) is located inside the lock housing (11). The output end of the reduction motor (131) is provided with a motor gear (1311) that meshes with the control gear (132). The gear control shaft (133) is located at one end of the control gear (132) and is connected to the control gear (132) in a transmission manner. The telescopic shaft drive gear (134) is sleeved on the gear control shaft (133) and meshes with one row of tooth grooves (1211). One end of the clutch control shaft (135) passes through the interior of the gear control shaft (133) and the control gear (132) and extends to one end of the slide plate (122). One end of the control gear (132) is provided with a drive inclined surface (1321) that abuts against one end of the slide plate (122). The emergency handle telescopic assembly (14) includes an emergency unlocking lever (141), an emergency unlocking gear (142), and a linkage group (143). One end of the emergency unlocking lever (141) extends into the interior of the lock housing (11) and is provided with an emergency drive rack (144). There are two emergency unlocking gears (142), and the emergency unlocking gears (142) rotate synchronously. One of the emergency unlocking gears (142) is located on one side of the emergency drive rack (144), and the other emergency unlocking gear (142) meshes with one row of tooth slots (1211). The linkage group (143) is located inside the lock housing (11). One end of the linkage group (143) is driven by the emergency unlocking lever (141), and the other end extends to the end of the clutch control shaft (135) away from the slide plate (122).

2. The automatic telescopic handle lock mechanism according to claim 1, characterized in that: The lock housing (11) is provided with a first fixed cylinder (15) on one side and a second fixed cylinder (16) on the other side. The first fixed cylinder (15) has a guide groove (151) inside. The handle telescopic shaft (121) is sleeved inside the first fixed cylinder (15) and a pin (1212) is provided on the handle telescopic shaft (121) that is slidably sleeved with the guide groove (151). The second fixed cylinder (16) is movably sleeved with a rotating arm center shaft sleeve (161). The end of the transmission shaft (125) away from the handle telescopic shaft (121) extends into the interior of the rotating arm center shaft sleeve (161) and is connected to the rotating arm center shaft sleeve (161) through the pin (1251). The triangular disc dial sleeve (126) is sleeved on the outside of the rotating arm center shaft sleeve (161).

3. The automatic telescopic handle lock mechanism according to claim 1, characterized in that: The surface of the triangular dial sleeve (126) is symmetrically provided with at least one latch drive crank (1261), and the surface of the triangular dial sleeve (126) is also provided with a handle crank (1262). The interior of the horizontal pull rod (124) is provided with an oblong hole that is movably sleeved with one end of the handle crank (1262). The horizontal pull rod (124) is also provided with a slot (1241) that engages with one end of the latch (123) extending to the outside of the lock housing (11).

4. The automatic telescopic handle lock mechanism according to claim 1, characterized in that: The lock housing (11) is provided with a fixed cylinder three (17) that communicates with the fixed cylinder one (15). The end of the fixed cylinder three (17) away from the fixed cylinder one (15) extends to one end of the rotating arm central shaft sleeve (161). The fixed cylinder three (17) is provided with an extension limit (171) and a locking end limit (172) and an unlocking end limit (173) located on both sides of the extension limit (171). The handle telescopic shaft (121) is provided with an extension limit block (1213) that extends to the space between the locking end limit (172) and the unlocking end limit (173).

5. The automatic telescopic handle lock mechanism according to claim 1, characterized in that: The control gear (132) has a push groove (1322) at one end away from the drive inclined surface (1321). One end of the gear control shaft (133) extends into the interior of the control gear (132) and has a boss (1331) extending into the push groove (1322) at one end. The gear control shaft (133) has a through hole on its outer side and a steel ball (1332) is provided inside the through hole. The telescopic shaft drive gear (134) has a gear groove (1341) inside, and one side of the steel ball (1332) extends into the interior of the gear groove (1341).

6. The automatic telescopic handle lock mechanism according to claim 1, characterized in that: The clutch control shaft (135) is provided with a thick section (1351) and a thin section (1352). The clutch control shaft (135) is also fitted with a return spring (1353) located at one end of the gear control shaft (133). The automatic extension and retraction assembly (13) of the handle also includes an extension end travel switch (136) and a locking travel switch (137) disposed inside the lock housing (11). One end of the extension shaft drive gear (134) is provided with a gear protrusion (1342) that matches the switch spring (138) of the extension end travel switch (136).

7. The automatic telescopic handle lock mechanism according to claim 4, characterized in that: The lock housing (11) has a limiting shaft (18) extending into the slide plate (122) at one end. The rotating arm center bushing (161) has a bushing protrusion (162) that matches the switch spring (138) of the locking limit switch (137) at one end. The handle telescopic shaft (121) has a telescopic shaft groove (1214). The slide plate (122) has a part extending into the telescopic shaft groove (1214) at one end. The limiting shaft (18) is connected to a pressure plate (19) located on one side of the slide plate (122) by screws.

8. The automatic telescopic handle lock mechanism according to claim 1, characterized in that: The locking tongue (123) is provided with a locking swing block (1231) at one end inside the lock housing (11). The sliding plate (122) is provided with a sliding plate groove (1221) and a sliding plate drive block (1222) on one side. The sliding plate groove (1221) is movably connected to the locking swing block (1231). The sliding plate drive block (1222) is provided with a stepped part (1223) at one end. The stepped part (1223) is in contact with one side of the drive inclined surface (1321) and one end of the clutch control shaft (135).

9. An automatic telescopic handle lock mechanism according to claim 1, characterized in that: The emergency unlocking lever (141) has a lever guide protrusion (145) on one side, and a bent part (1451) is provided at one end of the lever guide protrusion (145). The linkage group (143) includes an emergency unlocking swing arm (1431), an emergency unlocking connecting rod (1432), and an emergency unlocking rocker arm (1433). One end of the emergency unlocking swing arm (1431) is rotatably disposed inside the lock case (11), and the other end is provided with a swing arm groove (1434) that is fitted with one end of the bent part (1451).

10. An automatic telescopic handle lock mechanism according to claim 9, characterized in that: One end of the emergency unlocking linkage (1432) is hinged to the middle of the emergency unlocking swing arm (1431), and the other end is hinged to one end of the emergency unlocking rocker arm (1433). The emergency unlocking rocker arm (1433) is L-shaped. The L-shaped corner of the emergency unlocking rocker arm (1433) is rotatably connected to the inside of the lock housing (11). The end of the emergency unlocking rocker arm (1433) away from the emergency unlocking linkage (1432) extends to the end of the clutch control shaft (135) away from the stepped part (1223).

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