Safe case with combined lock

Abstract

A safe case with a combined lock belongs to the field of safe cases and is characterized in that a lock bottom plate is arranged in a cabinet door, a manual coded lock, a delay auxiliary switch, a key logic lock, a key coded lock and a main switch are mounted on the lock bottom plate, lock heads or handles are respectively arranged on the door surface of the cabinet door, trap lock bodies are arranged in the key logic lock and the key coded lock, and the main switch is arranged on the lock bottom plate. A password adding device is arranged, the manual coded lock and the time delay auxiliary switch are interlocked, the main switch is limited by the time delay auxiliary switch, the key logic lock and the key coded lock, a second handle of the main switch can be rotated only by unlocking the time delay auxiliary switch, the key logic lock and the key coded lock, and the safe case is provided with an anti-violence lock; the password cracking and unlocking difficulty is increased, and the linkage mechanism can prevent abnormal unlocking; the box body can prevent cutting and illegal opening.

Description

Technical Field

[0001] This invention relates to a safe, and more particularly to a safe with a combination lock, belonging to the field of safes. Background Technology

[0002] Common safes in current technology typically use either mechanical or electronic locks. Some mechanical locks have high levels of protection against pickpocketing and incorporate drill-resistant structures with carbide pins. These measures effectively improve safe security; however, weaknesses remain. For example, if the pivot of a combination lock is damaged, its function is lost, and the lock can still be opened using specialized tools. While the likelihood of electronic locks being cracked is decreasing with advancements in electronic and smart technologies, their reliability is still affected by environmental factors. They require continuous power supply, and prolonged use can lead to power outages, raising concerns about their reliability. Therefore, both mechanical and electronic safes have room for improvement in their security levels. Summary of the Invention

[0003] To address the weaknesses of existing safes, this invention provides a safe with a combination lock, which aims to further enhance the difficulty of resisting technical and forced entry, prevent technical entry in a short period of time, and avoid damage using common mechanical tools.

[0004] The technical solution of this invention is: a safe with a combination lock, comprising a burglarproof cabinet body and a burglarproof cabinet door. A lock base plate is provided inside the cabinet door, on which are installed: a manual combination lock, a delay auxiliary switch, a key logic lock, a key combination lock, and a main switch. A turntable and knob, a first handle, a first lock head, a second lock head, and a second handle are correspondingly provided on the door surface. The front of the key logic lock and the inner circumference of the key combination lock both employ trap lock bodies. The manual combination lock includes a rotating shaft, with multiple discs sleeved on the outer shaft, including a main disc and other discs, each with a notch. The main disc has toothed grooves. The delay auxiliary switch includes a fluid delay mechanism. The surrounding components include a plug, a locking lever, and a meshing lever. The plug corresponds to the notch on one of the multiple discs. The teeth on the end of the locking lever mesh with the corresponding tooth grooves, and the meshing teeth on the side of the meshing lever mesh with the corresponding gear teeth on the planetary gear disk in the main switch. The main switch also includes an external gear disk and a lever. The key logic lock includes a trap lock body at the front. A pair of logic rings are provided at the rear end of the lock cylinder of the trap lock body. When the key is turned, the pair of logic rings, through a locking device between the key logic lock and the main switch, respectively mesh with the second outer peripheral gear tooth of the planetary gear disk and the first outer peripheral gear tooth of the external gear disk in the main switch, thereby restricting the opening and closing of the main switch. The lever end of the main switch... The latch is hinged in the middle of the bolt rod, with one end facing the key combination lock. The outer circumference of the key combination lock body has multiple circular rings, each with a notch (notch 3). After the key is turned according to the combination, the notches 3 on the multiple rings align, matching one end of the bolt rod. The other end of the bolt rod is hinged to multiple bolt linkage rods with bolts facing multiple directions. Each bolt linkage rod is connected to a bolt facing the cabinet door, and each bolt matches a notch around the doorway. Only after the notches 3 on the multiple rings align can the corresponding end of the bolt rod be inserted, releasing one of the three restrictions on the rotation of the main switch's wrench. After release, multiple latches can rotate away from the wound. When opening the safe, insert the keys into lock cylinder one and lock cylinder two respectively, rotate the dial according to the prescribed password, and turn the handle one of the delay auxiliary switch. The plug enters notch one. At the same time, the engagement rod disengages from the planetary gear, and the key is turned to lock the logic lock according to the prescribed number of turns. This causes one locking arm to disengage from the planetary gear in the main switch, and the other locking arm to engage with the external gear. Rotate the key in lock cylinder two according to the password. The notches three on the multiple ring plates are aligned. After turning the handle two of the main switch, one end of the latch rod enters notch three, which simultaneously causes multiple latches to move away from the wound and open the cabinet door. Furthermore, the manual combination lock includes a rotating shaft, which extends from the manual combination lock through the center hole of its base, the bottom plate, and the door panel to one side of the cabinet door. A knob is fixed to the outer end of the rotating shaft, and a combination dial is fixed on the outer periphery of the rotating shaft between the knob and the door. The base is fixed on the bottom plate and includes an integral sleeve. Multiple discs are rotatably arranged on the outer periphery of the sleeve, separated by isolation rings. Among the multiple discs, the disc facing the inside of the cabinet is the main disc, and its outer periphery is provided with toothed grooves. A lever parallel to the multiple discs is provided at the inner end of the rotating shaft. Pins are respectively provided at the positions of the lever relative to the main disc and at the same radius positions on the relative surfaces of the main disc and other discs. The length of the pins between the relative surfaces is greater than the distance between them. When the knob and the combination dial are rotated, the lever transmits torque from the inside to the multiple discs sequentially through the pins, so as to achieve the rotation of the multiple discs. When unlocking, the discs rotate according to the set password, so as to achieve consistent alignment of the notches on the multiple discs. Furthermore, the delay auxiliary switch includes a horizontally arranged fluid delay mechanism with a boss plate above it, a roller rolling on the boss plate, and a rack below it. A plug extends from the left end of the rack. The roller is located at one end of a locking rod, and the other end of the locking rod has side teeth that mesh with the tooth grooves of the main disc. A locking rod bracket, hinged to a shaft, is slidably arranged in the middle. A meshing rod and a vertically lifting weight are connected to the rear end of the fluid delay mechanism. The meshing rod has a hinge shaft in the middle and meshing teeth at its end. The weight is rotated via a chain and sprocket, and moves vertically within the sleeve, meshing with the rack. There is a gear assembly with a gear shaft extending to the outside of the cabinet door. A handle is fixed to the outer end of the gear shaft. The gear assembly includes a one-way bearing with gears mounted on its outer circumference. The meshing teeth on the meshing rod mesh with the corresponding gear teeth in the planetary gear disk of the main switch. When the handle is turned to move the fluid delay mechanism to the right, the one-way throttle valve throttles the flow. The housing and its multiple components fixed on it slowly reset to the right under the action of the weight. After a period of time, the boss plate reaches the lower position below the roller. The disc locking rod resets under the action of the downward spring and releases the lock on the manual combination lock. Conversely, the meshing teeth of the meshing rod mesh with the corresponding gear teeth of the planetary gear disk. Furthermore, the trap lock body includes a lock cylinder and a lock shell. The lock cylinder is located inside the lock shell. The front end of the lock cylinder is provided with an anti-drilling plate. Several rows of round holes are distributed axially on the outer periphery of the lock cylinder, and inner tumblers are installed inside them. The lock shell is also provided with multiple rows of round holes corresponding to the round holes of the lock cylinder, and outer tumblers and standard springs are installed inside them. The tail end of the lock cylinder is secured to the lock shell by a snap ring. A keyhole is provided in the center of the lock cylinder. A shaped boss is provided at the rear end of the lock cylinder, and screw holes are provided on the boss. In addition, the lock shell is also provided with more round holes than the number of rows of the lock cylinder that constitute the trap lock body, for installing strong springs and outer tumblers. The lock shell is also provided with a notch two parallel to the length direction of the lock cylinder. An annular groove is also provided on the outer periphery of the lock shell. The notch two and the annular groove are used to install isolation snap rings. Several threaded holes for installing lock heads are distributed on the end face of the lock shell. Furthermore, the front of the key logic lock is a trap lock body, which includes a lock cylinder and a lock shell. The rear end of the lock cylinder is provided with an irregularly shaped protrusion. A cup-shaped body is fixed to the side of the irregularly shaped protrusion facing the cabinet. A pair of logic rings are fixed in the vertical direction on the outer periphery of the cup-shaped protrusion. A pair of logic rings are provided with logic grooves on the side of the pair of logic rings facing the cabinet. The distances of the logic grooves from the center of the logic rings are different. The distances from the center on the two logic rings are opposite. The locking device includes a hinge screw fixed to the base plate. Four arms with a herringbone structure are hinged to the hinge screw. One side is a pair of push arms. The lower ends of the push arms are slidably set in the logic grooves of the two logic rings through sliding pins. A pair of locking arms are provided on the side opposite to the push arms. The locking arms are linked to the push arms through a pull tab and a spring. The ends of the pair of locking arms are provided with their own locking teeth. The pair of locking teeth are respectively engaged or disengaged with the teeth of the planetary gear disk and the external gear disk in the main switch. Furthermore, the key combination lock includes a trap lock body set in the middle, which is fixed to the bottom plate inside the cabinet door. A combination plate is fixed to the front end of the lock cylinder on the cabinet door. Multiple circular rings with notches are set on the outer periphery of the lock shell of the trap lock body. External teeth are set on the outer periphery of the circular rings. Threaded pins of the same radius are set on opposite end faces. The position of the threaded pins determines the combination. Isolation springs are set between the multiple circular rings. The isolation springs are set in the annular groove of the trap lock body. A protrusion is also set on the inner periphery of the isolation spring. The protrusion is consistent in shape with the notch on the outer periphery of the lock shell and they cooperate with each other. A boss is fixed at the rear end of the lock cylinder, on which a lever is installed. Threaded pins of the same radius are set on the end. When the lever is rotated at a set angle to continuously move the circular rings to match the combination, when the notches of the multiple circular rings are consistent, one end of the latch rod can be inserted to release one restriction on the main switch. A blocking block is also set on the opposite side of the circular rings opposite the latch rod. Furthermore, the main switch includes a planetary reduction mechanism, which includes a sun gear and multiple planetary gears meshing on its outer periphery. The sun gear includes an integral extension sleeve. The sun gear and its extension sleeve are rotatably mounted on the outer periphery of a fixed seat. A rotating shaft is rotatably mounted on the inner periphery of the fixed seat. The front end of the rotating shaft is located in front of the cabinet door and is fixed with a second handle. The rear end of the rotating shaft is connected to the rear end of the extension sleeve of the sun gear. A planetary gear disk with two gear teeth is rotatably mounted on the outer periphery of the extension sleeve of the sun gear. Multiple screws are provided on the side of the planetary gear disk. The front ends of the multiple screws serve as the rotating shaft of the planetary gears. The outer periphery of the multiple planetary gears meshes with the internal teeth of an external gear disk. The outer periphery of the external gear disk is provided with a first gear tooth. A lever is fixed to the rear side of the planetary gear disk with several screws and pins. A locking tongue linkage rod is hinged to the lever by a hinge pin. Furthermore, the latch linkage rod is provided with a horizontal latch and a vertical latch through multiple hinge shafts. The horizontal latch is located on one side of the vertical edge of the cabinet door, and the vertical latch is located on the upper and lower edges of the cabinet door. The latch linkage rod is installed in the guide hole of the bearing slide. After the cabinet door is closed, the horizontal latch and the vertical latch are located in the opening inside the door frame. Furthermore, the cabinet body or cabinet door includes alloy steel that is difficult to drill and a cut-resistant interlayer, which are welded together by hot-pressing brazing and / or fusion welding. Furthermore, the fluid delay auxiliary switch includes a housing, a piston, a piston rod, and a one-way throttle valve with fluid inlet and outlet for the piston. The piston rod is fixed to the base plate by a bracket. The fluid is liquid or gas. A roller assembly is provided above the roller. The roller assembly includes a roller rod and an assembly housing is provided above it. A piston plate is provided inside the assembly housing. A compression spring and a buffer spring are respectively provided above and below the piston plate.

[0005] The positive effects of this invention are as follows: By setting multiple discs in the manual combination lock and setting a rotating shaft at its center, a lever parallel to the discs is set on the rotating shaft. Pins are respectively set on the same radius of the relative position of the lever and the main disc, and on the opposite surfaces of the main disc and other discs. When the rotating shaft is rotated according to the password to align the notches on the multiple discs, the plug at the end of the locking tongue rod of the delay auxiliary switch can be inserted, realizing the opening condition of the delay auxiliary switch. Otherwise, the manual combination lock will restrict the opening of the delay auxiliary switch. By setting a toothed groove on the outer periphery of the main disc, the main disc is locked by the rod-side teeth set on the locking rod end of the delay auxiliary switch. The manual combination lock is restricted by the delay auxiliary switch. That is to say, there is an interlocking structure between the manual combination lock and the delay auxiliary switch. In addition to interlocking with the aforementioned manual combination lock, the fluid delay auxiliary switch has a meshing rod and a vertically lifting counterweight connected to its rear end. This allows the meshing teeth at the end of the meshing rod to lock the planetary gear in the main switch, while simultaneously extending the interval between manual combination lock operations. Furthermore, because the handle of the delay auxiliary switch is driven by a rotating shaft and a gear with a one-way mechanism, the fluid delay auxiliary switch can only move in one direction and cannot reverse to reset. By setting a counterweight, the delay can be achieved while simultaneously resetting the delay auxiliary switch to its initial position. When the cabinet tilts, the counterweight can be stopped by the sleeve edge before reaching the reset endpoint, and the boss plate will be in the raised position. This structure prevents unauthorized movement of the safe, prevents the manual combination lock from being released, and terminates the operation. The planetary wheel on the main switch is locked by the locking teeth on the meshing rod, as well as by the locking arm two in the locking device. It is also restricted by the misalignment of the notch three in the key combination lock, preventing the rotation of handle two. Only when all three conditions are met simultaneously can the handle two on the main switch be rotated. The locking between the locking arm two and the planetary wheel requires the key in the key logic lock to rotate the combination. Only by rotating the key a specified number of times according to the combination can the planetary wheel be unlocked. Because both the key logic lock and the key combination lock utilize trap locks, technical unlocking is limited by the spring trap. Since there is no key to push the inner tumbler, once the lock is rotated to the trap position, the built-in strong spring pushes the outer tumbler into the rotating part between the lock cylinder and the lock body, thus locking it. Only the matching key can unlock it. Furthermore, the key combination lock uses an arc-shaped resistance mechanism to resist… Forced damage from the direction of the door lock tongue, especially the connection between the key logic lock and the main switch using a locking device, can be achieved by turning the key in the key logic lock, which drives the logic ring to rotate. This causes the logic slide in the logic ring to drive the push arm two. Only by turning according to the specified password can the eccentric push-pull arm of the logic slide be moved to the left. When moving, the locking arm is pulled to the left by the pull tab. The locking teeth on the locking arm disengage from the corresponding wheel and release it. In addition, since multiple ring pieces are set in the key combination lock, and the ring pieces are equipped with threaded pins, only by turning the key according to the password and driving the lever to move the multiple ring pieces in sequence through the threaded pins, and aligning the notches three on the multiple ring pieces, can one end of the lock tongue rod be inserted into the notch three, releasing the restriction on the main switch handle two. Only after the above three restrictions are released can the safe door be opened and the main switch handle two be used to open it. By including hard-to-drill alloy steel, diamond, and cut-resistant interlayers in the cabinet or cabinet door, and welding them together by hot-pressing brazing, the cabinet can be prevented from being damaged by violent means such as cutting tools.

[0006] This invention prevents external damage to the lock and handle from causing them to malfunction through a novel structural design; increases the difficulty of password cracking by extending the interval between repeated operations; adds a lock trap mechanism to prevent opening except with a key; disables the handle function in abnormal states through a linkage mechanism; and uses hard-to-cut materials for the safe body, adds mechanically cut-resistant materials, and features a special door edge design to prevent unauthorized opening of the safe. Attached Figure Description

[0007] Figure 1 This is a longitudinal cross-sectional view of a manual combination lock. Figure 2 This is a schematic diagram of the planar structure of the main disk platter; Figure 3 This is a schematic diagram of the fluid delay mechanism in the delay auxiliary switch when it is moved to the right side; Figure 4Figure 1 is a schematic diagram of the fixing structure between the handle and the cabinet door; Figure 5 is a schematic diagram of the structure when the fluid delay mechanism in the delay auxiliary switch moves to the left side; Figure 6 This is a schematic diagram showing how the protruding edge inside the inner sleeve of the counterweight prevents movement when the cabinet tilts. Figure 7 This is a cross-sectional structural diagram of the trap lock body; Figure 8 This is a schematic diagram of the rear end of the trap lock body; Figure 9 This is a schematic diagram of the front structure of the trap lock body; Figure 10 This is a schematic diagram of the structure of the pins and springs inside the round hole after the matching key is inserted into the trap lock body; Figure 11 This is a schematic diagram showing the changes in the pins and standard springs within the round hole after the lock cylinder is turned using the matching key. Figure 12 This is a schematic diagram showing the position of the pins inside the spring trap when the trap lock is opened using technology; Figure 13 It is a schematic diagram of the cup-shaped body fixed at the rear end of the lock cylinder and its two logic rings; Figure 14 This is an exploded view of the locking device; Figure 15 This is a schematic diagram showing the situation where the sliding pin of the push arm is located at a small distance from the center of the logic ring in the logic groove. Figure 16 This is a schematic diagram showing the situation where the sliding pin of the push arm is located at a large distance from the center of the logic ring in the logic groove. Figure 17 This is a schematic diagram showing the situation where the sliding pin 2 on the push arm 2 is located at a large distance from the center of the logic groove 2; Figure 18 This is a schematic diagram showing the situation where the sliding pin 2 on the push arm 2 is located at a small distance from the center of the logic groove 2; Figure 19 This is a side view diagram of a key combination lock; Figure 20 This is a rear view diagram of the key combination lock. Figure 21 This is a side view of the main switch; Figure 22 This is a schematic diagram of the end face of the main switch's rear end; Figure 23 This is a schematic diagram showing the distribution of the combination lock and its bolt on the inside of the cabinet door; Figure 24 It is a schematic diagram of the distribution of the latches on the vertical end face of the cabinet door and the structure of the door panel; Figure 25 This is a schematic diagram of the operating part of the combination lock on the front of the cabinet door and the bottom roller structure; Figure 26 This is a structural diagram of the cabinet when the door is open; Figure 27 This is a structural diagram of the cabinet when the door is closed; Detailed Implementation

[0008] In the following description, the term "technical opening" refers to the technical term for opening a safe by a non-key holder using abnormal methods. The lock cylinder structure used in key logic lock 4.0 and key combination lock 5.0 is the same, but the thickness of the disc or ring plate 5.3 is different, as are the structure of the key and the number of rotations.

[0009] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings:

[0010] Figure 1 This is a longitudinal cross-sectional view of a manual combination lock. Figure 2 This is a schematic diagram of the planar structure of the main disk platter, as shown below. Figure 1 and Figure 2 A detailed explanation of the structure, working principle, and operation process of manual combination locks: Combined with appendix Figure 1 Explain the structural features and working principle of a manual combination lock composed of multiple disks: The manual combination lock 1.0 includes a pivot. The pivot 1.1 and the digital dial 1.3 are riveted together on the outside of the cabinet door with rivets 1.2. A knob 1.14 is fixed to the outer end of the pivot 1.1 with screws 1.15. During installation, the pivot 1.1 passes through the door panel B and the base plate A from the outside of the door and enters the center hole of the base 1.5. The base 1.5 is installed on the base plate A with several screws 1.4. An integral sleeve is connected to the side of the base facing the combination lock, and the main dial plate 1 is fitted around its outer periphery. 8 and other discs 1.7, the inner end of the rotating shaft is fixed with a lever 1.9 by a nut 1.12. The lever 1.9 is connected to the main disc 1.8, the main disc, and other discs by pins 1.13 of equal radius that can be mutually actuated to transmit power. The main disc 1.8 and other discs 1.7 are separated on both sides by fixed isolation rings 1.6. If necessary, discs 1.7 and isolation rings 1.6 can be added to increase the difficulty of opening. The driving disc 1.8 has toothed grooves 1.8.1 on its outer circumference. The diameter is larger than the outer diameter of other discs. All discs and isolation rings 1.6 are locked to the base sleeve by snap rings 1.11. The lever 1.9 connects the main disc 1.8 and other discs via the pin shaft 1.13. In this way, the rotating shaft 1.1 can drive all discs to rotate in both directions. Multiple discs 1.7 and the main disc 1.8 are provided with notches 1.8.2. The notches 1.8.2 on multiple discs are the same size. When the lever 1.9 continuously moves the main disc 1.8 and multiple discs to match the notches 1.8.2 of the main disc 1.8 and multiple discs with the set rotation angle, the corresponding plug 2.17 can be inserted after the notches 1.8.2 of the main disc 1.8 and multiple discs are aligned. Only then can the handle of the delay auxiliary switch be turned to allow the delay auxiliary switch 2.0 to move to the end position. Otherwise, if the notches are not aligned, the delay auxiliary switch 2.0 cannot move to the end position. The manual combination lock 1.0 hinders the opening of the delay auxiliary switch 2.0.

[0011] The manual combination lock 1.0 described in this invention will not detach from the disc after the shaft is forcibly removed, and will still maintain its locking function.

[0012] The manual combination lock 1.0 described in this invention locks the active disk 1.8 when the opening mechanism is disengaged from the starting position, thus preventing it from being opened using the "tap code" technique.

[0013] Example of a manual combination lock: The method of setting the combination lock and the rotation method of the manual combination lock are existing technologies. However, the existing technology does not have a toothed groove for braking, which means that the manual combination lock lacks the linkage and interlocking between the manual combination lock and the delay auxiliary switch.

[0014] The following example uses three sets of passwords: Rotate clockwise more than 3 times, and continue rotating to align with the first set of password numbers; rotate counterclockwise once and continue rotating to align with the second set of password numbers; rotate clockwise to align with the third set of numbers. Only when the notches of the three sets of discs are aligned (1, 8, 2) can the restriction on the delay auxiliary switch be released. The two are related, and the manual combination lock has a locking effect on the delay auxiliary switch.

[0015] Figure 3 This is a schematic diagram of the fluid delay mechanism in the time-delay auxiliary switch when it is moved to the right side. At this time, when the fluid delay mechanism is on the right side, the locking rod 2.15 on the left side of the fluid delay mechanism has its upper side tooth 2.15.1 separated from the tooth groove 1.8.1 on the outer periphery of the driving disc 1.8. Conversely, the meshing tooth 2.22.1 on the meshing rod 2.22 on the lower right side of the fluid delay mechanism locks the planetary gear 6.5 with tooth 6.5.1. Figure 4 Figure 1 is a schematic diagram of the fixing structure between the handle and the cabinet door. Figure 5 is a schematic diagram of the structure when the fluid delay mechanism in the delay auxiliary switch moves to the left side. At this time, the rod side tooth 2.15.1 meshes with the tooth groove 1.8.1 on the outer periphery of the active disc 1.8. Conversely, the meshing tooth 2.22.1 on the meshing rod 2.22 locks and disengages from the planetary gear 6.5 gear tooth 6.5.1. The following refers to... Figure 3 Figure 5 illustrates the structure and operating principle of the delay auxiliary switch.

[0016] The aforementioned time-delay auxiliary switch includes a fluid delay auxiliary switch comprising a housing 2.19, a piston 2.16.1, a piston rod 2.16, and a one-way throttle valve 2.7 with fluid inlet and outlet. The fluid can be liquid or gas. The piston rod 2.16 is fixed to the base plate by a bracket 2.5. The locking rod 2.15 of the time-delay auxiliary switch is mounted on the base plate by a locking rod bracket 2.14. (Refer to...) Figure 3Figure 5 shows a boss plate 2.8 mounted above the cylinder body 2.19 of the fluid delay auxiliary switch, and a rack plate 2.20 below it. A roller 2.9 is mounted on the boss plate 2.8, and a roller assembly is mounted above the roller 2.9. The roller assembly is connected to an assembly housing 2.11, which is connected to one end of a locking rod 2.15. The other end of the locking rod 2.15 has a rod-side tooth 2.15.1, which meshes with the toothed groove 1.8.1 on the outer periphery of the active disc 1.8. Because the fluid delay auxiliary switch rotates... When the hand moves left and right, the roller 2.9 above it also moves up and down, further driving the locking rod 2.15 to move up and down. During the movement, the locking rod 2.15 uses the locking rod bracket 2.14 as a fulcrum to pry the right side tooth 2.15.1 to engage and disengage with the tooth groove 1.8.1 on the outer periphery of the active disc 1.8. Below the fluid delay auxiliary switch, there is a rack plate 2.20. The left end of the rack extends to a plug 2.17, which matches the notch 1.8.2. The rack plate 2.20 is engaged with... A one-way gear assembly 2.18 has a gear shaft extending outside the cabinet door. A handle 2.18.7 is fixed to the outer end of the gear shaft 2.18.2. A one-way bearing 2.18.3 is installed on the left end of the gear shaft 2.18.2, and a gear 2.18 is mounted on its exterior. The right end of the fluid delay auxiliary switch is connected to a meshing rod 2.22 and a vertically lifting weight 2.1 via a pull rod 2.6. The meshing rod 2.22 has a hinge shaft in the middle, and a return spring is installed on its left side. The weight 2.1 is rotated vertically via a chain and sprocket. The engagement rod 2.22 in the sleeve 2.2 engages with the gear teeth 6.5.1 of the planetary wheel 6.5 in the main switch 6.0. When the handle 2.18.7 is turned to move the fluid delay auxiliary switch to the right, the one-way throttle valve 2.7 throttles the flow. The housing and its multiple components fixed on it slowly return to the right under the action of the counterweight 2.1. After a period of time, the boss plate 2.8 reaches the lower position below the roller 2.9, and the disc locking rod 2.15 returns to the starting position under the action of the compression spring 2.13.1, releasing the lock on the manual combination lock.

[0017] The fluid delay auxiliary switch includes a housing 2.19, a piston 2.16.1, a piston rod 2.16, and a one-way throttle valve 2.7 for the fluid inlet and outlet of the piston 2.16.1. The piston rod 2.16 is fixed to the base plate by a bracket 2.5. The fluid is liquid or gas. A roller assembly is provided above the roller 2.9. The roller assembly includes a roller rod 2.10, and an assembly housing 2.11 is provided above it. A piston plate 2.12 is provided inside the assembly housing 2.11. A pressure spring 2.13.1 and a buffer spring 2.13 are respectively provided above and below the piston plate.

[0018] The specific actions and the functions of each component are as follows: When the handle is turned, the one-way gear drive gear assembly 2.18 drives the rack 2.20 to move to the left, opening the one-way throttle valve 2.7. The raised position of the boss plate 2.8 causes the roller 2.9 to lift, causing the right end of the disc locking lever 2.15 to tilt upwards. The left end of the lever side tooth 2.15.1 engages with the groove 1.8.1 on the outer circumference of the main disc 1.8 of the manual combination lock, locking the manual combination lock. If the lever side tooth 2.15.1 fails to align with the groove 1.8.1 on the outer circumference of the main disc, the buffer spring 2.13 will be compressed. Turning the manual combination lock causes the locking lever 2.17 to tilt upwards under the action of the buffer spring 2.13, and the lever side tooth 2.15.1 quickly... The manual combination lock disc is engaged in the groove 1.8.1 on its outer periphery, locking it in place. When the fluid delay auxiliary switch is moved to the right, the one-way throttle valve 2.7 throttles the flow. The housing and its multiple components fixed to it slowly reset to the right under the action of the counterweight 2.1. After a period of time, the boss plate 2.8 reaches its lowest position below the roller 2.9, and the locking lever 2.15 of the main disc 1.8 resets under the action of the compression spring 2.13.1, releasing the lock on the manual combination lock. It should be noted that the above method is only a special case; any lever method using the locking lever 2.15 can achieve the locking function and falls within the scope of protection of this patent. The slow reset time extends the interval between the next operation of the manual combination lock 1.0. (Refer to...) Figure 4 During installation, the gear shaft 2.18.2 of the delay auxiliary switch 02 drive assembly is passed through the support 2.18.4 mounted on the base plate A. A handle 2.18.7 is installed on the right end of the gear shaft 2.18.2 and fastened to the gear shaft with screws 2.15.6. The support 2.18.4 is fixed to the base plate A with several screws 2.18.5. A one-way bearing 2.18.3 is installed on the left end of the gear shaft 2.18.2, and a one-way gear assembly 2.18.1 is assembled on its outside. When the gear shaft 2.18.2 is rotated, the gear 2.18 drives the rack plate 2.20, causing the cylinder 2.19 to move towards the notch 1.8.2 of the multiple discs of the manual combination lock 1.0 (to the left). However, the one-way gear cannot reverse to drive the reset. Its reset action is achieved by the counterweight 2.1 via the chain 2.4 and the pulley 2.3, which guides the cylinder 2.19.

[0019] Figure 6 This is a schematic diagram showing how the protruding edge inside the inner sleeve of the counterweight prevents movement when the cabinet tilts. When the cabinet tilts, the counterweight 2.1 will be stopped by the protruding edge 2.2.1 of the sleeve 2.2 before the reset endpoint. At this time, the boss plate 2.8 keeps the locking rod 2.15 in the raised position, and the manual combination lock 1.0 cannot be unlocked, thus terminating the auxiliary switch opening process.

[0020] Referring to Figure 5, when the keypad 1.3 is in the correct position, the plug 2.17 can enter the keypad notch 2.18, the cylinder 2.19 reaches the final position on the left, the lever 2.6 completes the set idle stroke and pulls the main switch engagement lever 2.22, overcoming the resistance of the return spring 2.21, and releasing the locking of the engagement teeth 2.22.1 on the planetary wheel.

[0021] The delayed auxiliary switch 2.0 described in this invention locks the combination lock when the delayed auxiliary switch is operated, preventing the "key-tap" technology from being activated. The slow reset process of the moving components increases the interval between each "key-tap" operation, thus preventing the "key-tap" technology from being activated. When the cabinet is moved to a non-horizontal state, the reset counterweight loses its function, the component reset is prevented, and the combination lock cannot be operated. These measures aim to prevent the technology from being activated. The delayed auxiliary switch 2.0's functionality is restricted by the manual combination lock, which also restricts the main switch.

[0022] Figure 7 This is a cross-sectional structural diagram of the trap lock body. Figure 8 This is a structural diagram of the rear end of the trap lock body. Figure 9 This is a schematic diagram of the front structure of the trap lock body; the following is in conjunction with the attached diagram. Figure 7-13 The structural features and working principle of the trap lock body are described below: The key logic lock 4.0 of this invention has a trap lock body at its front. The trap lock body includes a lock cylinder 3.2 and a lock shell 3.3. The lock cylinder 3.2 is located inside the lock shell 3.3. An anti-drilling plate 3.1 is welded to the front end of the lock cylinder 3.2. Several rows of round holes are distributed around the outer periphery of the lock cylinder 3.2, and inner pins 3.6 are installed inside them. Corresponding to the round holes of the lock cylinder, multiple rows of round holes are provided on the lock shell, and outer pins 3.5 and standard springs 3.4 are installed inside them. The tail end of the lock cylinder 3.2 is connected to the lock using a retaining spring 3.7. The lock housing 3.3 is snapped together. The lock cylinder 3.2 has a keyhole 3.2.3 in the center and an irregularly shaped boss 3.2.1 at the rear end. The boss has screw holes 3.2.2 for installing other components. The lock housing 3.3 has more rows of round holes than the lock cylinder 3.2 for installing a strong spring 3.8 and an outer pin 3.5 to form a spring trap. The lock housing 3.3 also has a notch 3.3.3 for installing a baffle plate. The lock housing 3.3 also has an annular groove 3.3.1 for installing a retaining ring. Several threaded holes 3.3.2 distributed on the end face of the lock housing are used to install a trap lock.

[0023] In this embodiment, the anti-drilling plate 3.1 is made of cemented carbide or diamond composite material. It should be noted that the anti-drilling method described in this invention is not limited to this embodiment. Anti-drilling methods such as polycrystalline diamond pillars can also be embedded in the head of the lock cylinder 3.2.

[0024] Figure 10 This is a schematic diagram showing the structure of the pins and springs inside the round hole after the matching key is inserted into the trap lock body. Figure 11This diagram illustrates the changes in the position of the pins and standard spring 3.4 within the round hole after the lock cylinder is rotated using the matching key in a trap lock body. When the correct key is inserted into the lock cylinder 3.2, the key slot pushes the seam between the inner pin 3.6 and the outer pin 3.5 until it aligns with the seam between the lock cylinder 3.2 and the lock shell 3.3, allowing the lock cylinder to rotate. When the pins rotate to... Figure 11 When the key is in the correct position, the seam between the inner and outer pins is flush with the gap between the lock cylinder 3.2 and the lock shell 3.3, allowing the pins to pass smoothly through the trap consisting of the strong spring 3.8 and the outer pin 3.5.

[0025] Figure 12 This is a schematic diagram showing the position of the pins inside the spring trap when the lock body is opened using technical means. When opening the trap lock technically, since the lock pick does not have the matching key, after the lock cylinder 3.2 rotates, the inner pins 3.6 are in a free state. (Refer to...) Figure 13 When the lock cylinder 3.2 rotates to the strong spring trap, since there is no key support, the strong spring 3.8 pushes the outer pin 3.5 into the corresponding hole of the lock cylinder 3.2, locking the lock cylinder 3.2 and the lock shell 3.3. Once locked, due to the support of multiple sets of strong springs 3.8, the unlocking tool cannot effectively push the pin and spring, and it will be impossible to open the lock technically.

[0026] The trap lock body described in this invention effectively prevents the use of drilling or grinding tools to forcibly break the lock, and also effectively prevents the use of technical means to open the lock.

[0027] Combined with appendix Figure 13-18 Explain the structural features and working principle of the main switch: The key logic lock 4.0 controls the planetary clutch in the main switch, so that the deceleration mechanism in the main switch is in a controlled idling state or an energized state. The key logic lock 4.0 uses the key to rotate the aforementioned trap lock body 3.0, and the working angle exceeds 180° twice to pass through the trap.

[0028] Figure 13This is a schematic diagram of the cup-shaped body and its two logic rings fixed to the rear end of the lock cylinder. The cup-shaped body 4.4 is mounted on the irregularly shaped protrusion 3.2.1 at the rear end of the lock cylinder of the trap lock body 3.0, and is fixed to the irregularly shaped protrusion 3.2.1 at the rear end of the lock cylinder with a pressure plate 4.5 and screws 4.6. A pair of logic rings, logic ring one 4.1 and logic ring two 4.2, are installed on the outside of the cup-shaped body 4.4. The two logic rings are parallel to the cabinet door and are fastened to the outside of the cup-shaped body 4.4 with positioning screws 4.3. The positions of logic ring one 4.1 and logic ring two 4.2 relative to the base plate A are... The sides are respectively provided with logic slide groove 4.1.1 and logic slide groove 4.2.1. The distances of logic slide groove 4.1.1 and logic slide groove 4.2.1 from the center of logic ring 4.1 and logic ring 4.2 are different. The maximum or minimum distance of the logic slide grooves on the two logic rings from the center are set oppositely. Sliding pin 4.12A and sliding pin 4.12 are slidably installed in logic slide groove 4.1.1 and sliding pin 4.12, respectively. Sliding pin 4.12A and sliding pin 4.12 are located at the lower ends of the two push arms of the locking device.

[0029] Figure 14This is an exploded view of the locking device. The locking device includes two push arms on one side and two locking arms on the opposite side. The two push arms are push arm one (4.8A) and push arm two (4.8), and the two locking arms are locking arm one (4.7A) and locking arm two (4.7). The upper ends of the two push arms and the two locking arms are provided with annular structures. These annular structures are hinged to hinge screws 4.14 via washers 4.14.1 and separated by ring sleeves 4.13. The lower ends of the two locking arms... Each part is respectively provided with locking teeth 4.7.1A and 4.7.1 facing the external gear disk 6.3 gear tooth 6.3.1 and the planetary gear disk 6.5 gear tooth 6.5.1. A pull tab 4.11A is provided at the midpoint of the side of the push arm 4.8A and the opposite locking arm 4.7A via a pull pin 4.10A. A pull tab 4.11 is provided at the midpoint of the side of the push arm 4.8A and the opposite locking arm 4.7A via a pull pin 4.10. A spring 4.9A is positioned at the midpoint between the opposing surfaces of push arm 4.8A and the corresponding locking arm 4.7A. A spring 4.9A is positioned at the midpoint between the sides of push arm 4.8A and the corresponding locking arm 4.7A. When the key to the logic lock 4.0 is turned, the rotation of logic rings 4.1A and 4.2 causes sliding pins 4.12A and 4.12A to slide within logic rings 4.1A and 4.2 respectively, thereby causing push arm 4.8A to... 4.8A and 4.8A respectively drive 4.7A and 4.7A to expand and contract the distance between the two push arms and the two locking arms, thereby achieving the engagement and disengagement of locking teeth 4.7.1A and gear teeth 6.3.1 of the external gear disk 6.3, or the engagement and disengagement of locking teeth 4.17 and gear teeth 6.5.1 of the planetary gear disk 6.5. Specifically, when the distance between push arm 4.8A and locking arm 4.7A expands, due to the logic ring 4.1 and The sliding grooves within logic ring 4.2 are oriented in opposite directions. This allows the distance between locking arms 4.8 and 4.7 to be reduced, separating locking tooth 4.7.1 from planetary gear 6.5 and engaging locking tooth 4.7.1 with external gear 6.3. Similarly, when pushing arm 4.8A and locking arm 4.7A reduce their distance, locking arms 4.8 and 4.7 increase their distance, separating them. When the locking tooth 4.7.1 is disengaged from the planetary gear 6.5, one of the conditions for rotating the handle 2 is met. Based on the characteristics of the planetary reduction mechanism, even when the locking tooth 4.7.1A is engaged with the external gear 6.3, the handle 2 connected to the sun gear can still rotate. This is the difference between this invention and existing technology. Rotating the key of the key logic lock 4.0 can achieve the engagement of the locking tooth 4.7.1 with the planetary gear 6.5.The separation between 1 and 2 allows the locking device to control the main switch. To turn the handle to open the cabinet door, it is necessary to release the locking rod from the planetary gear, and also to release the obstruction of the bolt rod 7.2.2 at one end of the key combination lock (5.0).

[0030] The following diagrams illustrate the interaction between logic loop 1 (4.1), logic loop 2 (4.2), and the locking arm and the locking arm: Taking the inner logic loop 4.1 as an example, Figure 15 This is a schematic diagram showing the situation where the sliding pin of the push arm is located at a small distance from the center of the logic ring in the logic groove. Figure 16 This is a schematic diagram showing the situation where the sliding pin of the push arm is located at a large distance from the center of the logic groove. When the sliding pin 4.12A corresponding to the inner logic groove 4.1.1 is in a position biased towards the smaller diameter at a greater distance (see...). Figure 15 Pulling the push arm 4.8A to the left, and passing through the pull pin 4.10A and the pull plate 4.11A, pulls the locking arm 4.7A to the left. The locking tooth 4.7.1A disengages from the outer gear tooth 6.3.1 on the outer circumference of the main switch's outer gear disk 6.3, and the main switch 6.0's outer gear disk 6.3 is in a free state; when the sliding pin 4.12A corresponding to the logic slide groove 4.1.1 is in a position biased towards the larger diameter at a greater distance (see... Figure 16 The spring pushes the push arm 4.8A to move to the right, which in turn pushes the locking arm 4.7A to move to the right. The locking tooth 4.7.1A engages with the outer teeth 6.3.1 of the main switch's outer gear disk 6.3, locking the main switch's outer gear disk 6.3. When the locking tooth 4.7.1A is aligned with the outer teeth 6.3.1 of the outer gear disk 6.3, the spring 4.9A is compressed. Once the outer gear disk 6.3 rotates, the locking tooth 4.7.1A engages with the outer teeth 6.3.1 of the main switch's planetary gear disk 6.3, locking the main switch's outer gear disk 6.3.

[0031] Figure 17 This is a schematic diagram showing the situation where the sliding pin 2 on the push arm 2 is located at a large distance from the center of the logic groove 2. Figure 18 This is a schematic diagram showing the situation where the sliding pin 2 on the push arm 2 is located at a small distance from the center of the logic groove 2. Taking logic ring 2 4.2 as an example, when logic groove 2 4.2.1 corresponds to sliding pin 2 4.12, see... Figure 18When at a relatively far distance with a large diameter, pushing the push arm 4.8 moves to the right, which in turn pushes the locking arm 4.7 to the right via the spring 4.9. The locking tooth 4.7.1 engages with the outer teeth 6.5.1 of the main switch planetary disk 6.5, locking the main switch planetary disk 6.5. When the locking tooth 4.7.1 is aligned with the outer teeth 6.5.1 of the planetary disk 6.5, the spring 4.9 is compressed. Once the planetary disk 6.5 rotates, the locking tooth 4.7.1 engages with the outer teeth 6.5.1 of the main switch planetary disk 6.5, locking the main switch planetary disk 6.5. (See logic groove 4.2.1 for more details.) Figure 17 When the sliding pin 4.12 is at a small distance from the center diameter, the locking arm 4.7 is pulled to the left by the pulling pin 4.10 and the pulling plate 4.11, and the locking tooth 4.7.1 disengages from the outer tooth 6.5.1 of the planetary disk 6.5 of the main switch, and the planetary disk of the main switch is in a free state.

[0032] Combined with appendix Figures 19-20 Explain the structural features and working principle of the key combination lock: Figure 19 This is a rear view diagram of the key combination lock. Figure 20 This is a side view of a key combination lock. The key combination lock 05 has several notched circular rings 5.3 on the outer periphery of the lock shell of the trap lock body 03. The outer periphery of each circular ring 5.3 has teeth. The trap lock body 03 is fixed to the base plate A with several screws 5.9. The digital dial 5.1 is fixed to the lock cylinder in front of the cabinet door with several screws. The circular rings at the front of the lock cylinder have external teeth 5.3.2 distributed along their outer edges. Several axially threaded holes 5.3.1 of the same radius are distributed on opposite end faces of the circular rings 5.3 for installing threaded pins 5.2. The threaded pins 5.2 determine the unlocking combination. Changing these... The pin position allows for changing the combination. Multiple circular pieces 5.3 with notches 5.3.3 are isolated by an isolation ring 5.4 with an inner circumferential limiting protrusion. A lever 5.5 is installed on the rear boss of the lock cylinder. The end of the lever 5.5 is equipped with a threaded pin 5.2 that can be moved with the corresponding circular piece 5.3. The lever 5.5 is fixed to the rear boss of the lock cylinder by several screws 5.7 via a pressure plate 5.6. When the lock cylinder is rotated, the lever 5.5 continuously moves the circular pieces 5.3 to match the combination at a set rotation angle. When the notches 5.3.3 of multiple circular pieces are aligned, one end 7.2.2 of the bolt rod 7.2 can be inserted to release a restriction on the main switch and unlock the lock.

[0033] When attempting to open the key combination lock using the "code matching" method, the outer teeth 5.3.2 of the outer circumference of the ring 5.3 mesh with the end teeth of the latch 7.2, preventing the ring 5.3 from continuing to rotate. A blocking block 5.8 is provided in the opposite direction of the ring 5.3 opposite to the lock rod. The blocking block 5.8 is fixed to the base plate. When attempting to impact the key combination lock with the lock latch 7.2, the blocking block 5.8 on the opposite side acts as a barrier.

[0034] Combined with appendix Figure 21-22 Explain the structural features and working principle of the main switch: Figure 21 This is a side view of the main switch. Figure 22 This is a schematic diagram of the rear end face of the main switch. The main switch is based on a planetary reduction mechanism. The main switch includes a rotating shaft 6.1, which passes through the center of a fixed base 6.2. The rotating shaft 6.1 is located within the central hole of the fixed base 6.2. The front end of the rotating shaft 6.1 is located in front of the cabinet door and a handle 6.15 is fixed to it with screws 6.16. The rear end of the rotating shaft 6.1 is connected to the sun gear with screws 6.10 via a baffle 6.9 and a shaped connecting piece 6.11. A sun gear 6.8 and its integral extension sleeve are provided on the outer periphery of the fixed base 6.2. A planetary gear disk 6.5 with teeth 6.5.1 is rotatably mounted outside the extension sleeve of the sun gear 6.8. The planetary gear disk 6.5 is blocked by a retaining ring 6.13. Multiple planetary gears 6.4 mesh around the periphery of the wheel. The outer periphery of the multiple planetary gears 6.4 meshes with the internal teeth of the external gear disk 6.3. The outer periphery of the external gear disk 6.3 is provided with gear teeth 6.3.1. A planetary disk 6.5 is rotatably mounted on the outer periphery of the extension sleeve. The outer periphery of the planetary disk 6.5 is provided with gear teeth 6.5.1. Multiple screws 6.7 are provided on the side of the planetary disk 6.5. The multiple screws 6.7 also serve as the rotating shafts of the planetary gears 6.4. Several screw holes are opened on the outer periphery of the extension sleeve. Fixing screws 6.12 are inserted into the annular groove 6.2A of the fixing seat 6.2 to prevent it from falling out. The outer side of the planetary disk 6.5 is fixed with a lever 6.6 by several screws and pins 6.7. The lever 6.6 is used to actuate the locking tongue lever 7.2 described later.

[0035] The principle by which the planetary wheel 6.5 of the main switch is controlled by the delay auxiliary switch and the main switch is as follows: When the engagement rod 2.22 of the delay auxiliary switch swings to the left, it releases the locking of the engagement tooth 2.22.1 on the planetary wheel 6.5; at this time, if the sliding pin 4.12A corresponding to the logic groove 4.2.1 is at a distance from the center of the wheel (see... Figure 21 When the distance is too small, locking tooth 4.7.1 disengages from the outer teeth 6.5.1 of the planetary disk 6.5 of the main switch 6.0, and the planetary disk 6.5 is in a free state. (See synchronous...) Figure 18The external gear disk 6.3 is locked by the locking tooth 4.7.1A at the end of the locking arm 4.7A. When the handle 6.15 is turned, the sun gear 4.8 drives the outer circumference of the planet gear 6.5 to rotate. The planet gear disk 6.5 and the planet gear 6.4 rotate together, driving the lever 6.6 to operate the door lock. Conversely, at this time, if the sliding pin 4.12 corresponding to the logic groove 4.2.1 is in a position far from the center (see... Figure 17 When the actuator arm 4.8 is pulled, it passes through the pull pin 4.10 and the pull plate 4.11, pulling the locking arm 4.7 to the right. The locking tooth 4.7.1 engages with the circumferential tooth 6.5.1 of the main switch planetary gear 6.5, and the main switch planetary gear 6.5 is locked. Simultaneously (see...) Figure 18 When the external gear disk 6.3 is released by the locking arm 4.7A of the main switch, and the handle 6.15 is turned, the sun gear 4.8 is in the intermediate gear state, driving the external gear disk 6.5, and the main switch wrench 6.15 cannot operate the door lock.

[0036] If the engagement rod 2.22 on the delay auxiliary switch rotates in the forward direction, the engagement teeth 2.22.1 lock the planetary wheel 6.5. At this time, no matter what state the main switch is in, the main switch cannot operate the door lock.

[0037] The main switch handle 6.15 of this invention can only open the cabinet door when the manual combination lock, key combination lock, and main switch are all in the correct positions, and the auxiliary switch and main switch are operated in sequence.

[0038] The following combination Figure 23-27 Explain the structure and working principle of the combination lock after its various components are installed on the base plate.

[0039] Figure 23 This is a schematic diagram of the distribution of the combination lock and its latch on the inner side of the cabinet door. The combination lock 7.0 is installed on the inner side of the door panel B. After turning the second wrench, the lever 6.6 drives the latch rod 7.2 to move left and right through the hinge pin 7.2.1. The latch rod 7.2 slides in the bearing slide 7.1, which is fixed on the base plate. The right end of the latch rod 7.2 is connected to multiple latch linkage rods 8.4 through a hinge. The latch linkage rods 8.4 are slidably set in the bearing slide 8.3, driving the extension and retraction of the horizontal latch 8.2 and the vertical latch 8.5. The horizontal latch 8.2 refers to the latch set in the thickness direction of the cabinet door edge on the opposite side of the door pivot 8.7, thereby achieving the locking and unlocking of the cabinet door. The head of the latch rod end 7.2.2 is provided with end teeth corresponding to the outer teeth 5.3.2 of the outer circumference of the ring, which is used to prevent the technical "matching" opening.

[0040] Figure 24This is a schematic diagram of the vertical end face 8.6.1 of the cabinet door, the distribution of the horizontal latch 8.2, and the structure of the door panel. M and N in the diagram are enlarged details of two different door panel or cabinet structure methods. Taking the structure of the cabinet panel and door panel 8.1 as an example, the outer layer is an alloy steel layer 8.1.1, made of alloy steel containing elements such as silicon and manganese, or alloy steel containing metallic nickel—materials that are difficult to drill. The inner layer 8.1.3 can be the same material as the outer layer or other metallic materials. The cut-resistant interlayer 8.1.2 is made of diamond and / or cubic boron carbide and / or hard alloy particles, ceramics, etc., pressed into sheets using powder metallurgy methods, and welded between the inner and outer steel plates using hot-press brazing and / or fusion welding.

[0041] See Figure 24 The outer layer of the cabinet panel and door panel 8.1 is an alloy steel layer 8.1.1, made of alloy steel containing elements such as silicon and manganese, or alloy steel containing metallic nickel, which is difficult to drill. It has grooves 8.1.1A on its inner surface. The inner layer 8.1.3 can be the same material as the outer layer or other metal materials, and its inner surface has grooves 8.1.3A. After the inner and outer layers are stacked, the two grooves intersect each other. It should be noted that such intersecting grooves can also be manufactured on any cabinet panel. Pre-fabricated cut-resistant strips made of diamond and / or cubic boron carbide and / or hard alloy, ceramic, etc., using powder metallurgy methods are embedded in the grooves. After stacking, they are welded together through the pre-drilled holes 8.1.3B in the inner layer 8.1.3. Figure 24 The overall structure. It should be specifically noted that the cut-resistant interlayer described in this invention can be manufactured using the latest methods to achieve the same purpose.

[0042] Multiple horizontal latches 8.2 are provided on the door frame side opposite to the cabinet door hinge 8.7, and multiple vertical latches 8.5 are provided on the upper and lower door frames. The multiple horizontal latches 82 are comb-shaped, and the latches are rectangular, circular or other shapes.

[0043] When the engagement rod 2.22 of the delay auxiliary switch swings in the reverse direction, it releases the locking tooth 2.22.1 from the planetary gear 6.5; at this time, if the sliding pin 4.12A corresponding to the logic slide 4.2.1 is in (see...) Figure 18 When the distance from the center of the plate is too small, locking tooth 4.7.1 disengages from tooth 6.5.1 on the outer circumference of the planetary disk in the main switch, and the planetary disk 6.3 of the main switch is in a free state. (See synchronous...) Figure 19 The external gear disk 6.3 is locked by the locking tooth 4.7.1A at the end of the locking arm 4.7A of the main switch. When the handle 6.15 is turned, the sun gear 6.8 drives the planet gear 6.4 to rotate, and the planet disk 6.5 rotates together with the planet gear 6.4, driving the lever 6.6 to operate the door lock; conversely, if the sliding pin 4.12A corresponding to the logic groove 4.2.1 is in the position biased towards the larger diameter (see... Figure 17When (as shown), pulling the push arm 4.8 via the pin 4.10 and pull tab 4.11 pulls the locking arm 4.7 to the right, and the locking tooth 4.7.1 engages with the circumferential groove 6.5.1 of the main switch planetary gear 6.5, putting the main switch planetary gear 6.5 in a locked state. Simultaneously (see...) Figure 18 When the external gear disk 6.3 is released by the locking arm 4.7A of the main switch, and the handle 6.15 is turned, the sun gear is in the intermediate gear state, driving the external gear disk 6.5 to rotate freely, and the main switch cannot control the door lock.

[0044] Figure 25 This is a schematic diagram of the operating section and bottom wheels of the combination lock on the front of the cabinet door. It includes the combination dial 1.3 and knob 1.14 of the manual combination lock 1.0, the handle 2.18.7 of the delay auxiliary switch 2.0, the trap lock body end and keyhole 3.2.3 of the key logic lock 4.0, the digital dial 5.1 and keyhole 3.2.3 on the lock cylinder of the key combination lock 5.0, and the handle 6.15 of the main switch 6.0.

[0045] See Figure 25 The bottom traveling wheels 8.12.4 are connected to the axle holes of the portal frame 8.12.2 via axle 8.12.3. The portal frame 8.12.2 passes through the support plate 8.11.1 of the cabinet bottom plate. The support plate has threaded holes. The traveling wheel screw 8.12.1 passes through the portal frame 8.12.2 and screws into the threaded holes. Turning the traveling wheel screw 8.12.1 downwards allows the traveling wheels to extend beyond the bottom surface of the cabinet and can be pushed. Turning the traveling wheel screw 8.12.1 upwards retracts the traveling wheels back to the bottom surface of the cabinet and disables them. It should be noted that the up and down rotation of the traveling wheel screw 8.12.1 can only be completed within the internal space of the cabinet.

[0046] Figure 26 This is a structural diagram of the cabinet when the door is open. Figure 27 This is a structural diagram of the cabinet when the door is closed. The cabinet body is composed of four cabinet panels (top, bottom, left, and right) welded together with a back panel. The front forms the door frame, and the door is located around the door frame. The door is surrounded by a door edge 8.6. On one side of the door hinge 8.7, there is a door tenon 8.9 with an outward protrusion 8.9.1 and an inward protrusion 8.9.2 on its inner and outer sides. The outward protrusion 8.9.1 has a row of horizontally placed anti-cutting structures 8.10 made of materials such as diamond embedded inside. When the door is closed, it is flush between the outward protrusion 8.9.1 and the inward protrusion 8.9.2. The other three sides have door tenons 8.8, which also have a row of horizontally placed anti-cutting structures 8.10 made of materials such as diamond embedded inside. The middle of the door tenon 8.8 has a protrusion 8.8.1. When the door is closed, the protrusion 8.8.1 of the door tenon 8.8 prevents the door from moving inward. When the horizontal locking tongue 8.2 and the vertical locking tongue 8.5 extend, they lock behind the protrusion 8.8.1 to lock the cabinet door.

[0047] Reference Figure 23When the horizontal locking tongue 8.2 is pulled back by the locking tongue rod 7.2, it simultaneously drives the upper and lower locking tongue linkage rod 8.4 to move to the left, causing the vertical locking tongue 8.5 to retract, and the cabinet door can be unlocked and opened.

[0048] When the horizontal locking tongue 8.2 is pushed out by the locking tongue rod 7.2, it simultaneously drives the upper and lower locking tongue linkage rod 8.4 to move to the right, causing the vertical locking tongue 8.5 to extend, and the cabinet door lock cannot be opened.

[0049] The combination lock of this invention comprises the aforementioned components, a base plate, a bolt, etc. Their interrelationships are described in [reference needed]. Figure 23 .

[0050] Can the manual combination lock 1.0 control the delay auxiliary switch 2.0 to reach the end position? Once the delay auxiliary switch 2.0 moves, regardless of whether it reaches the end position, it will lock the manual combination lock 1.0, preventing it from rotating. The lock on the manual combination lock 1.0 can only be released by the gravity hammer slowly returning to the starting point. The lock on the main switch 6.0 can only be released when the delay auxiliary switch 2.0 reaches the end position. If the safe tilts, the gravity hammer will be affected by the inner protrusion 2.2.1 of the sleeve 2.2 and will not be able to reset, rendering the manual combination lock 1.0 inoperable. The key logic lock 4.0 enables the main switch 6.0; when the main switch is not in the open position, the main switch 6.0 is in an idle state and cannot be operated. The key combination lock 5.0 controls whether the latch rod 7.2 can move to the left to pull the latch. The main switch 6.0 controls the latch rod 7.2 to open or lock the cabinet door.

[0051] Rotate the manual combination lock 1.0 digital dial 1.3 so that the notches 1.8 and 1.8.2 on the main dial 1.8 and multiple dials 1.7 are all in the unlocked position where the plug 2.17 can enter; rotate the key of the combination lock 5.0 according to the password so that notches 5.3.3 are all in the position where the end 7.2.2 of the bolt can enter; use the key logic lock 4.0 to put it in the open position, unlock the planetary wheel 6.5 through the locking device, and lock the outer gear plate 6.3; rotate the delay auxiliary switch 2.0 to put it in the open position, unlock the planetary wheel 6.5, rotate the main switch 6.0 to move the bolt lever 7.2 to the left to open the cabinet door.

[0052] Cabinet door closing and locking method: Turn the main switch 6.0 in the reverse direction to move the lock tongue to the right to lock the cabinet door, remove the key, and scramble the password.

[0053] The positive effects of this invention are as follows: By setting a main disc 1.8 and other discs 1.7 in the manual combination lock 1.0, and setting a rotating shaft at its center, a lever 1.9 parallel to the discs is set on the rotating shaft. Pins 1.13 of the same radius are respectively set on the relative positions of the lever 1.9 and the main disc 1.8, and on the relative surfaces of the main disc and other discs. By rotating the rotating shaft according to the combination, the notches 1.8.1 on the multiple discs are aligned, allowing the plug 2.1 at the end of the latch rod 7.2 in the delay auxiliary switch 2.0 to be inserted. Insert 7 to meet the opening conditions of the delay auxiliary switch 2.0; otherwise, the manual combination lock 1.0 will restrict the opening of the delay auxiliary switch 2.0. By setting the tooth groove 1.8.1 on the outer periphery of the main plate 1.8, the main plate 1.8 is locked by the rod-side tooth 2.15.1 at the locking rod 2.15 end of the delay auxiliary switch 2.0. The manual combination lock 1.0 can be restricted by the delay auxiliary switch 2.0. That is to say, there is an interlocking structure between the manual combination lock 1.0 and the delay auxiliary switch 2.0. In addition to interlocking with the aforementioned manual combination lock 1.0, the delay auxiliary switch 2.0 is further enhanced by connecting a meshing rod 2.22 and a vertically lifting counterweight 2.1 to its rear end. The meshing rod 2.22's toothed groove 2.22.1 also locks the planetary gear 6.5 in the main switch 6.0. This allows for a delay, extending the interval between subsequent operations of the manual combination lock. Furthermore, the delay auxiliary switch's handle is equipped with a one-way gear. The drive rack plate can only move the fluid delay auxiliary switch in one direction and cannot reverse the reset drive. By setting a set of counterweight mechanism drive device, the delay can be achieved at the same time as the initial position reset of the delay auxiliary switch. When the cabinet tilts, the counterweight 2.1 will be stopped by the edge of the through hole before the reset endpoint, and the counterweight 2.1 will be stopped by the protruding edge 2.2.1 of the sleeve 2.2 before the reset endpoint, which can prevent the safe from being moved without authorization. When the boss plate is in the raised position, the manual combination lock cannot be unlocked and the operation process is terminated. The planetary wheel 6.5 on the main switch 6.0 is locked by the locking teeth 2.22.1 on the meshing rod 2.22, and also by the locking arm 4.7 in the locking device. It is also restricted by the notch 5.3.3 in the key combination lock. Only when all three conditions are met simultaneously can the handle 6.15 on the main switch be rotated. The locking between the locking arm 4.7 and the planetary wheel 6.5 requires a key to unlock. The key logic lock 4.0 also has a key rotation code; only by following the code can the planetary wheel 6.5 be unlocked. Because both the key logic lock 4.0 and the key combination lock 5.0 utilize the trap lock 3.0, unlocking using ordinary techniques is limited by the spring trap. When the locking arm 4.7A and the locking tooth 4.7.1A are in the "top tooth" state with the tooth 6.3 of the external gear disk 6.3, the spring 4.9A is compressed. Once the external gear disk 6.3 rotates to the tooth-aligning position, it is locked. Only a proper key can unlock it. Furthermore, the key combination lock 5.0 uses an arc-shaped resistance mechanism, which can resist... To resist violent damage from the direction of the door lock tongue, especially when the key logic lock 4.0 and the main switch 6.0 are connected by a locking device, the logic slide in the key logic lock 4.0 can drive the push arm two. Only when the specified password is rotated can the eccentric push-pull arm of the logic slide move to the left, and the pull plate pulls the locking arm to the left. The locking teeth on the locking arm disengage from the corresponding planetary wheel 6.5 and release it. In addition, since multiple circular plates 5.3 are set in the key combination lock 5.0, the circular plates 5.0 are equipped with... The safe is equipped with threaded pins 5.2. Only by turning the key according to the password, driving the lever 5.5 to sequentially move multiple ring pieces 5.3 through the threaded pins 5.2, can the notches 5.3.3 on the multiple ring pieces 5.3 be aligned. The main switch 6.0 then drives one end 7.2.2 of the latch rod 7.2 to insert into the notch 5.3.3, releasing the restriction on the main switch handle 2. Only when all three restrictions are released can the safe door be opened. By including hard-to-drill alloy steel, diamond, and cut-resistant interlayers in the cabinet or door, and welding them together by hot-pressing, the cabinet can be prevented from being violently damaged by cutting tools. This invention, through a new structural design, prevents external damage to the lock and handle from causing failure. It increases the difficulty of password cracking by extending the interval between repeated operations. By adding a lock trap mechanism, it can not be opened except by using a key. The linkage mechanism makes the opening handle function disabled in abnormal states. The cabinet uses hard-to-cut materials, adds mechanically cut-resistant materials, and has a special door edge design to prevent unauthorized opening of the safe.

Claims

1. A safe with a combination lock, comprising a safe body and a safe door, characterized in that: The cabinet door is provided with a lock bottom plate, on which are mounted a manual password lock (1.0), a time delay auxiliary switch (2.0), a key logic lock (4.0), a key password lock (5.0) and a main switch (6.0), and on the door surface are correspondingly provided a rotary knob, a handle (2.18.7), a lock head, a handle and a lock head, wherein the front part of the key logic lock (4.0) and the inner periphery of the key password lock (5.0) are provided with trap lock bodies (3.0), the manual password lock comprises a rotating shaft, the outer shaft sleeve of the rotating shaft is provided with a plurality of disc pieces, including a main disc piece (1.8) and other disc pieces (1.7), which are provided with notches (1.8.2), and the main disc piece is provided with a tooth groove (1.8.1), the time delay auxiliary switch comprises a fluid time delay mechanism, the periphery thereof comprises a plug (2.17), a locking rod (2.15) and an engaging rod (2.22), the plug (2.17) corresponds to the notches (1.8.2) of the main disc piece and the other disc pieces (1.7), the rod side teeth (2.15.1) provided at the end of the locking rod (2.15) correspondingly engage with the tooth groove (1.8.1), the engaging teeth (2.22.1) provided on the side of the engaging rod (2.22) correspondingly engage with the second wheel teeth (6.5.1) on the main switch, the main switch further comprises an outer gear disc (6.3) and a lever (6.6), the key logic lock (4.0) comprises a trap lock body (3.0) at the front part, the rear end of the lock cylinder of the trap lock body (3.0) is provided with a pair of logic rings, when the key is rotated, the pair of logic rings are respectively connected with the second wheel teeth (6.5.1) on the planetary gear disc (6.5) and the first wheel teeth (6.3.1) on the outer gear disc (6.3) through the lock stopper between the key logic lock (4.0) and the main switch, thereby achieving engagement and separation, so as to restrict the opening and closing of the main switch, the end of the lever (6.6) in the main switch is hinged to the middle position of the lock bolt (7.2), one end (7.2.2) of the lock bolt (7.2) is directed to the side of the key password lock, the outer periphery of the lock body (03) of the key password lock is provided with a plurality of ring pieces (5.3), which are provided with notches (5.3.3), and after the key is rotated according to the specified password, the notches (5.3.3) on the plurality of ring pieces (5.3) are aligned, after the alignment, the notches (5.3.3) are matched with the one end (7.2.2) of the lock bolt (7.2), the other end of the lock bolt (7.2) is hinged to a plurality of lock bolt linkage rods of the direction lock bolt, each lock bolt linkage rod is connected with a lock bolt directed to the door opening of the cabinet, and each lock bolt is matched with the wound on the periphery of the door opening, and the one end (7.2.2) of the corresponding lock bolt (7.2) can be inserted into the notches (5.3.3) after the notches (5.3.3) on the plurality of ring pieces (5.3) are aligned.3), the release of the main switch wrench two rotation of a restriction, three restrictions after the removal, multiple lock tongue can rotate away from the wound, open the safe, respectively into the key in the lock head, lock head two, according to the specified password rotation above the carousel, the handle of the delay auxiliary switch one, plug into the gap one, at the same time, the meshing rod and planetary disc (6.5) disengagement, according to the specified number of turns on the key logic lock key, drive a lock arm and the main switch in the planetary disc separation, another lock arm and the outer gear disc meshing, according to the password rotation in the key lock head two multiple ring piece on the gap three alignment, rotation of the main switch square handle two (6.15) after, the lock tongue rod (7.2) one end into the gap three, at the same time, drive multiple lock tongue away from the wound, open the door.

2. A safe with a combination lock according to claim 1, characterized in that: The manual combination lock includes a pivot shaft, which extends from the manual combination lock (1.0) through the center hole of its base, the bottom plate (A), and the door panel (B) to one side of the cabinet door. A knob is fixed to the outer end of the pivot shaft, and a combination dial (1.3) is fixed on the outer circumference of the pivot shaft between the knob and the door panel. The base is fixed on the bottom plate and includes an integral sleeve. Multiple discs are rotatably arranged on the outer circumference of the sleeve, separated by isolation rings (1.6). Among the multiple discs, the disc facing the inner side of the cabinet is the main disc, and its outer circumference is provided with toothed grooves (1.8.1). The inner end of the pivot shaft is provided with... Multiple parallel levers (1.9) are provided with pins (1.13) at the same radius positions on the relative positions of the levers (1.9) and the main disc 1.8, and on the relative positions of the main disc and other discs. The length of the pins (1.13) between the relative faces is greater than the distance between them. When the knob and the keypad are rotated, the levers (1.9) transmit the torque from the inside to the outside to the multiple discs through the pins (1.13), so that the multiple discs rotate. When unlocking, the discs rotate according to the set password, so that the notches (1.8.2) on the multiple discs are aligned in a consistent manner.

3. A safe with a combination lock according to claim 1, characterized in that: The delay auxiliary switch (2.0) includes a horizontally arranged fluid delay mechanism, with a boss plate (2.8) above it. A roller (2.9) is rolled on the boss plate (2.8), and a rack is arranged below it. A plug extends from the left end of the rack. The roller is located at one end of a locking rod (2.15). The other end of the locking rod (2.15) is provided with a rod-side tooth (2.15.1), which meshes with the tooth groove (1.8) of the main disc. .1) A locking rod bracket (2.14) hinged to the shaft is slidably arranged in the middle. The rear end of the fluid delay mechanism is connected to a meshing rod (2.22) and a vertically lifting weight (2.1). The meshing rod (2.22) has a hinge shaft in the middle and meshing teeth (2.22.1) at the end. The weight (2.1) is rotated by a chain and sprocket, and is vertically lifted in the sleeve (2.2). A gear assembly (2.1) meshes on the rack (2.20). 8) The gear shaft extends to the outside of the cabinet door, and a handle (2.18.7) is fixed to the outer end of the gear shaft. The gear assembly (2.18) includes a one-way bearing (2.18.3), and a gear (2.18) is assembled on its outer circumference. The meshing teeth (2.22.1) on the meshing rod (2.22) mesh with the gear teeth (6.5.1) in the main switch planetary wheel (6.5). When the handle is turned to move the fluid delay mechanism to the right, the one-way throttle valve (2.7) is throttled. The flow, the housing and its multiple components fixed on it slowly return to the right under the action of the weight (2.1). After a period of time, the boss plate (2.8) reaches the lower position below the roller (2.9). The disc locking rod (2.15) returns to the position under the action of the pressing spring (2.13.1) and releases the lock on the manual combination lock. Conversely, the meshing teeth (2.22.1) of the meshing rod (2.22) mesh with the second tooth (6.5.1) of the planetary wheel (6.5).

4. A safe with a combination lock according to claim 1, characterized in that: The trap lock body (3.0) includes a lock cylinder (3.2) and a lock shell (3.3), the lock cylinder is located in the lock shell, the front end of the lock cylinder is provided with an anti-drilling piece (3.1), the outer periphery of the lock cylinder (3.2) is distributed with a plurality of rows of circular holes in the axial direction, and the inner assembly is provided with an inner pin (3.6), a plurality of rows of circular holes corresponding to the circular holes of the lock cylinder (3.2) are also arranged on the lock shell (3.3), and the inner assembly is provided with an outer pin (3.5) and a standard spring (3.4), the tail end of the lock cylinder (3.2) is clamped on the lock cylinder (3.2) by using a clamping spring (3.7), the center of the lock cylinder (3.2) is provided with a key hole (3.2.3), the rear end of the lock cylinder (3.2) is provided with a special-shaped boss (3.2.1), the boss is provided with a screw hole (3.2.2), in addition, the lock shell (3.3) is also provided with a plurality of circular holes constituting the trap lock body more than the row number of the lock cylinder (3.2), for installing a powerful spring (3.8) and an outer pin (3.5), the lock shell (3.3) is also provided with a second notch (3.3.3) parallel to the length direction of the lock cylinder, and the outer periphery of the lock shell (3.3) is also provided with an annular groove (3.3.1), the second notch (3.3.3) and the annular groove (3.3.1) are used for setting an isolation clamping spring (5.4), and the end surface of the lock shell is distributed with a plurality of threaded holes (3.3.2) for installing lock heads.

5. A safe with a combination lock according to claim 1, characterized in that: The front part of the key logic lock (4.0) is a trap lock body, the trap lock body includes a lock cylinder (3.2) and a lock shell (3.3), the rear end of the lock cylinder (3.2) is provided with a special-shaped boss (3.2.1), the special-shaped boss (3.2.1) is fixed with a cup-shaped body (4.4) towards one side of the cabinet body, a pair of logic annular rings are fixed in the vertical direction of the outer periphery of the cup-shaped body (4.4), a pair of logic sliding grooves are arranged on the pair of logic annular rings respectively towards one side of the cabinet surface, the distances from the logic sliding grooves to the centers of the logic annular rings are different, and the distances from the two logic annular rings to the center are opposite, the lock stopper includes a hinge screw (4.14) fixed on the bottom plate, the hinge screw (4.14) is hingedly connected with four arms in a herringbone structure, one side is a pair of pushing arms, the lower ends of the pushing arms are respectively slidably arranged in the logic sliding grooves of the two logic annular rings through sliding pins, the side opposite to the pushing arms is provided with a pair of locking arms, the locking arms and the pushing arms are connected through a pull tab (4.11) and a spring, the ends of the pair of locking arms are respectively provided with respective locking teeth, and the pair of locking teeth are respectively engaged with or separated from the teeth of the planetary wheel disc and the outer gear disc in the main switch.

6. A safe with a combination lock according to claim 1, characterized in that: The key code lock comprises a trap lock body arranged in the middle, the trap lock body is fixed on the bottom plate (A) in the cabinet door, the lock core front end of the cabinet door surface is fixed with a secret code disc, the outer periphery of the lock shell of the trap lock body is provided with a plurality of annular plates (5.3) with notches three, the outer periphery of the annular plate is provided with external teeth (5.3.2), the opposite end surface is provided with a threaded pin (5.2) with the same radius, the position of the threaded pin (5.2) determines the rotation code, a plurality of annular plates (5.3) are provided with isolation clamping springs (5.4) between them, the isolation clamping spring (5.4) is arranged in the annular groove (3.3.1) of the trap lock body (3.0), the inner periphery of the isolation clamping spring (5.4) is provided with a protruding part at the same time, the protruding part is consistent with the shape of the notch two (3.3.3) arranged on the outer periphery of the lock shell, and they are matched with each other, the rear end of the lock core is fixed with a boss, and the boss is provided with a lever (5.5) installed thereon, the end part is provided with a threaded pin (5.2) with the same radius, when the lever (5.5) continuously drives the annular plate (5.3) to code with a set rotation angle, the notches three (5.3.3) of a plurality of annular plates are consistent, one end (7.2.2) of the lock bolt rod (7.2) can be inserted, the restriction on the main switch is removed, and the opposite side of the lock bolt rod relative to the annular plate is further provided with a blocking block (5.8).

7. A safe with a combination lock according to claim 1, characterized in that: The main switch comprises a planetary reduction mechanism, the planetary reduction mechanism comprises a sun gear (6.8) and a plurality of planetary gears (6.4) engaged on the outer periphery, the sun gear (6.8) comprises an extension sleeve integrated with the sun gear (6.8), the sun gear (6.8) and the extension sleeve thereof are rotatably arranged on the outer periphery of the fixed seat (6.2), the inner periphery of the fixed seat (6.2) is rotatably arranged with a rotating shaft, the front end of the rotating shaft (6.1) is located in front of the cabinet door and is fixed with a handle two (6.15), the rear end of the rotating shaft (6.1) is connected with the rear end of the extension sleeve of the sun gear, the outer periphery of the extension sleeve of the sun gear (6.8) is rotatably arranged with a planetary gear disc (6.5) with outer periphery gear teeth two (6.5.1), the side surface of the planetary gear disc 6.5 is provided with a plurality of screws (6.7), the front end of the plurality of screws (6.7) serves as the rotating shaft of the planetary gear (6.4), the outer periphery of the plurality of planetary gears (6.4) is engaged with the inner teeth of the external gear disc (6.3), the outer periphery of the external gear disc (6.3) is provided with gear teeth one (6.3.1), the rear side of the planetary gear disc (6.5) is fixed with a lever (6.6) by a plurality of screw pins (6.7), and the lever (6.6) is hinged with a lock bolt linkage rod (8.4) through a hinge pin (7.2.1).

8. A safe with a combination lock according to claim 1, characterized in that: The lock bolt linkage rod (8.4) is provided with a horizontal lock bolt (8.2) and a vertical lock bolt (8.5) through a plurality of hinge shafts, the horizontal lock bolt (8.2) is located on one side of the vertical edge of the cabinet door, and the vertical lock bolt (8.5) is located on the upper and lower edges of the cabinet door, the lock bolt linkage rod (8.4) is installed in the guide hole of the bearing sliding seat (8.3), and after the cabinet door is closed, the horizontal lock bolt (8.2) and the vertical lock bolt (8.5) are located in the incision in the door frame.

9. A safe with a combination lock according to claim 1, characterized in that: The cabinet body or the cabinet door comprises alloy steel and anti-cutting interlayer which are difficult to drill and cut, and are welded by hot pressure brazing or / and fusion welding.

10. A safe with a combination lock according to claim 3, characterized in that: The fluid delay mechanism comprises a shell (2.19), a piston (2.16.1), a piston rod (2.16) and a one-way throttle valve (2.7) arranged at the fluid inlet and outlet of the piston (2.16.1), the piston rod (2.16) is fixed on the bottom plate by a support (2.5), the fluid is liquid or gas, a roller assembly is arranged above the roller (2.9), the roller assembly comprises a roller rod (2.10), a component shell (2.11) is arranged above the roller rod (2.10), a piston plate (2.12) is arranged in the component shell (2.11), the piston plate is respectively provided with a pressing spring (2.13.1) and a buffer spring (2.13) upwards and downwards. 2.13.1)and a buffer spring (2.13) upwards and downwards.

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