Computer case with external anti-theft structure

Abstract

The invention discloses a computer case with an external anti-theft structure, and relates to the technical field of computer security, the computer case comprises a case body, a key and a mounting seat, the key is arranged at a lock hole of the case body, the mounting seat is arranged at the bottom of the case body, an identification lock is arranged on the right side of the case body, a lock catch is rotatably mounted in the key, and the lock catch is arranged on the right side of the case body. When the box body needs to be opened, double protection is carried out through an existing fingerprint lock and an arranged built-in lock mechanism, the fingerprint lock carries out identity recognition through the uniqueness of human body fingerprints, high safety and convenience are achieved, the built-in lock mechanism usually adopts a mechanical lock cylinder and can only be opened through a specific key, and a layer of traditional physical protection is added; the box door and the box door are combined, so that the safety of the box door is greatly improved, unauthorized personnel are effectively prevented from operating, and when a thief carries out violent disassembly under the condition that the box door is not opened, the hinged position of the box door is protected through an L-shaped toothed bar at the moment.

Description

Technical Field

[0001] The invention relates to the technical field of computer security, in particular to a computer case with an external anti-theft structure. Background Art

[0002] In public environments, such as internet cafes and electronic classrooms, where operators are highly mobile, computer case security presents a challenge. While traditional methods of securing the case with a locking nose and a padlock at the rear can prevent the case from being opened and internal components from being removed, they are less effective in preventing the theft of the entire case. This approach has become increasingly limited, especially with the trend towards increasing integration and miniaturization of computer cases.

[0003] The patent with patent announcement number CN209946789U relates to the field of computer security technology. The patent discloses an anti-theft case for a computer, including a case body, a foot pad and a case door. Four foot pads are provided at the bottom of the case body, and the four foot pads are respectively distributed at the four corners of the bottom of the case body. A case door is provided on one side of the case body, and the case door is locked to the case body by a lock. A camera is installed on the side wall of the case body above the case door, and a warning light is provided on the top of the case body. A mounting plate is provided above the inner cavity of the case, and a fixing buckle is provided through the side wall of the case body. The case can be locked to the table leg with an anti-theft lock. If someone steals, it will increase the difficulty for the thief. If the thief opens the case door to steal the components inside the case, the lock will increase the difficulty for the thief. The user first connects to the handheld device through a wireless connection device to achieve remote monitoring.

[0004] In the above patent, the lock is set to increase the difficulty for thieves. The user first connects to the handheld device through a wireless connection device to achieve remote monitoring. However, the current device has the following problems: the strength and complexity of the lock itself are usually low and it is easy to be damaged or pried open, which cannot effectively prevent the computer from being stolen. When the thief violently disassembles it, it cannot provide effective protection measures, which can easily cause damage to the computer chassis. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a computer case with an external anti-theft structure, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a computer case with an external anti-theft structure, comprising a case, a key and a mounting seat, wherein the key is arranged at the lock hole of the case, the mounting seat is arranged at the bottom of the case, an identification lock is arranged on the right side of the case, a lock catch is rotatably installed inside the key, and an anti-theft device is also included; wherein the anti-theft device includes a case door, a driving gear 1, a gear rod, a driving gear 2, an L-shaped gear rod and a No. 1 spring, the case door is rotatably installed on the inner wall of the case, the driving gear 1 is rotatably installed on the inner wall of the case door, and the gear rod is slidably installed on the surface of the case door, The second driving gear is rotatably mounted on the inner wall of the box, and the L-shaped gear rod is slidably mounted on the inner wall of the box. The No. 1 spring is arranged between the box door and the gear rod, and the gear rod is reset by the No. 1 spring. The first driving gear is meshed with the gear rod, and the second driving gear is meshed with the L-shaped gear rod. The side of the gear rod close to the inner wall of the box is set as an inclined surface, and the lock buckle is fixed by allowing the lock buckle to be stuck in the lock groove. At this time, turning the key counterclockwise causes the first driving gear to rotate. The rotation of the first driving gear causes the gear rod to move backward and compresses the No. 1 spring. When the gear rod is separated from the inner wall of the box, the box door is released from the limit. Wherein, a protective device for protecting electronic facilities and an anti-holding device for preventing the box from being directly moved are arranged inside the box.

[0007] According to the above technical solution, a camera module, an alarm module and a fingerprint recognition module are provided inside the identification lock. A wireless communication module is provided inside the identification lock. If the thief's fingerprint recognition module fails, the alarm module will be triggered and the camera module will be turned on. The thief will be warned and recorded through the two modules, and the information will be uploaded to the operator's cloud through the wireless communication module.

[0008] According to the above technical solution, a locking groove is provided on the surface of the driving gear one, and a pull rope is provided between the driving gear one and the driving gear two. When the driving gear one rotates, the pull rope drives the driving gear two to rotate, so that the L-shaped gear rods on the upper and lower sides move outward respectively.

[0009] According to the above technical solution, the protective device includes a baffle, a chute block and a sealing plate. The baffle is fixedly installed on the inner wall of the box. If a thief opens the door, the internal electronic equipment will be blocked by the baffle. The chute block is slidably installed on the inner wall of the baffle, and the sealing plate is rotatably installed on the inner wall of the box. A No. 2 spring is arranged between the chute block and the baffle, and the chute block is reset by the No. 2 spring. A No. 1 torsion spring is arranged between the sealing plate and the box, and the sealing plate is reset by the No. 1 torsion spring.

[0010] According to the above technical solution, the protective device also includes a movable plate, a confusing plate, a tilting rod, a sliding block, a triangular block and a card block, the movable plate is slidably mounted on the inner wall of the box, a No. 3 spring is provided between the movable plate and the box, and the movable plate is driven to reset by the provided No. 3 spring, the confusing plate is slidably mounted on the inner wall of the box, the tilting rod is rotatably mounted on the inner wall of the baffle, the sliding block is slidably mounted on the surface of the baffle, the triangular block is fixedly mounted on the inner wall of the sliding block, the card block is slidably mounted on the inner wall of the sliding block, and a No. 4 spring is provided between the sliding block and the baffle, and the sliding block is driven to reset by the provided No. 4 spring. A No. 5 spring is provided between the card block and the sliding block, and the card block is reset by the provided No. 5 spring. The top of the card block is set as an inclined surface, and a card slot is provided on the side of the movable plate close to the card block. The inclined slot block moves and contacts with the tilting rod, and through the lever principle, the other side of the tilting rod rotates downward. The rotation of the other side of the tilting rod contacts with the inclined surface of the triangular block, so that the sliding block slides, and the sliding of the sliding block drives the card block to move. At this time, the No. 3 spring is in a compressed state, and the card block moves out of the card slot. At this time, the No. 3 spring is released to drive the movable plate to move upward, and the movement of the movable plate drives the confusing plate to move synchronously.

[0011] According to the above technical solution, the protective device also includes a main door, a limiting mechanism and a movable pulley. The main door is slidably installed on the inner wall of the box, and the limiting mechanism is set on the inner wall of the box. One side of the movable pulley is in contact with the movable plate, and the other side of the movable pulley is in contact with the limiting mechanism. A No. 6 spring is provided between the main door and the box. The No. 6 spring is provided to drive the main door to reset and attempt to open it from the main door. The main door is internally limited by the limiting mechanism.

[0012] According to the above technical solution, the anti-lock device includes a limiting plate and an L-shaped block. The limiting plate is fixedly installed on the outer wall of the mounting seat, and the L-shaped block is fixedly installed on the top of the mounting seat. The limiting plate prevents the box from moving forward.

[0013] According to the above technical solution, the anti-lock device also includes a docking block, a screw, a brake rod and a hidden cover, the docking block is slidably installed on the inner wall of the box, the screw is set in the mounting hole of the mounting seat, the brake rod is slidably installed on the inner wall of the L-shaped block, and the hidden cover is slidably installed on the surface of the L-shaped block, a No. 7 spring is arranged between the docking block and the box, and the docking block is driven to reset by the arranged No. 7 spring, the top of the docking block is set as an inclined surface, a No. 8 spring is arranged between the brake rod and the L-shaped block, and the brake rod is driven to reset by the arranged No. 8 spring, the side of the brake rod close to the docking block is set as an inclined surface, a No. 9 spring is arranged between the hidden cover and the L-shaped block, and the hidden cover is driven to reset by the arranged No. 9 spring, when the docking block is in a connected state, it will contact the inclined surface of the brake rod to move the brake rod, and the movement of the brake rod will contact the top of the hidden cover to cause the hidden cover to move downward, and the downward movement of the hidden cover will cover the screw.

[0014] The present invention provides a computer case with an external anti-theft structure. It has the following beneficial effects: This invention, through the setting of anti-theft devices, provides double protection through the existing fingerprint lock and the set hidden lock mechanism when the box needs to be opened. The fingerprint lock uses the uniqueness of human fingerprints for identity recognition, which has high security and convenience. The hidden lock mechanism usually adopts a mechanical lock core, which requires a specific key to open, adding a layer of traditional physical protection. The combination of the two greatly improves the security of the box door and effectively prevents unauthorized personnel from operating. When the thief violently disassembles the box door when it is not opened, the hinge of the box door is protected by the L-shaped gear rod.

[0015] This invention, through the setting of protective devices, if a thief opens the box door, the internal electronic equipment will be blocked by the baffle, making it difficult for the thief to directly access the equipment inside the box, thereby reducing the probability of successful theft. At this time, the thief may observe the box and try to open it from the main door. The main door is internally limited by the limiting mechanism, making it impossible to open from the outside, and the No. 6 spring is in a compressed state, which increases the difficulty and time cost of theft. The confusing plate confuses the thief, who may mistakenly believe that there are complex mechanisms or alarm devices in the box, and thus dare not act easily, which has a certain deterrent effect.

[0016] This invention, through the provision of an anti-hold device, installs the box on the mounting base, and prevents the box from moving forward through a limiting plate, making it impossible for thieves to move the entire box away, making it difficult for thieves to take away the entire chassis and its internal items, thereby increasing the difficulty and risk of theft. Even if the thief is able to open the chassis, it is difficult to move it away, which reduces the possibility of theft to a certain extent. The screws are covered by moving the hidden cover downward, making it impossible for thieves to remove the mounting base. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the box of the present invention; Figure 3 This is a schematic structural diagram of the concealed lock mechanism of the present invention; Figure 4 This is a schematic diagram of the position structure of the key and the driving gear of the present invention; Figure 5 This is a schematic diagram of the position structure of the box door and the chute block of the present invention; Figure 6 This is a schematic diagram of the position structure of the movable plate and the confusing plate of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure of part A in the middle; Figure 8 This is a schematic diagram of the position structure of the sliding block and the clamping block of the present invention; Figure 9 This is a schematic diagram of the position structure of the L-shaped block and the docking block of the present invention.

[0018] In the figure: 1. Box body; 2. Identification lock; 3. Box door; 4. Key; 41. Lock; 5. Drive gear 1; 6. Tooth block rod; 7. Drive gear 2; 8. L-shaped tooth rod; 9. Spring No. 1; 20. Baffle; 21. Bevel block; 22. Sealing plate; 23. Movable plate; 24. Detent plate; 25. Crank rod; 26. Sliding block; 27. Triangular block; 28. Card block; 29. ​​Main door; 210. Limiting mechanism; 211. Movable pulley; 30. Mounting seat; 31. Limiting plate; 32. L-shaped block; 33. Docking block; 34. Screw; 35. Brake lever; 36. Hidden cover. DETAILED DESCRIPTION

[0019] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] See also Figures 1-9One embodiment of the present invention is: a computer case with an external anti-theft structure, including a case body 1, a key 4 and a mounting seat 30, the key 4 is set at the key hole of the case body 1, the mounting seat 30 is set at the bottom of the case body 1, an identification lock 2 is set on the right side of the case body 1, and a lock catch 41 is rotatably installed inside the key 4, and an anti-theft device is also included; wherein the anti-theft device includes a case door 3, a driving gear 1 5, a tooth block rod 6, a driving gear 2 7, an L-shaped tooth rod 8 and a No. 1 spring 9, the case door 3 is rotatably installed on the inner wall of the case body 1, the driving gear 1 5 is rotatably installed on the inner wall of the case door 3, the tooth block rod 6 is slidably installed on the surface of the case door 3, the driving gear 2 7 is rotatably installed on the inner wall of the case 1, and the L-shaped tooth rod 8 is slidably installed It is installed on the inner wall of the box body 1, and spring No. 1 9 is set between the box door 3 and the gear rod 6. The gear rod 6 is reset by the set spring No. 1 9, and the driving gear 1 5 is engaged with the gear rod 6. The driving gear 2 7 is engaged with the L-shaped gear rod 8. The side of the gear rod 6 close to the inner wall of the box body 1 is set as a slope. Double protection is provided by the existing fingerprint lock and the set hidden lock mechanism. The fingerprint lock uses the uniqueness of human fingerprints for identity recognition, which has high security and convenience. The hidden lock mechanism usually adopts a mechanical lock core, which requires a specific key 4 to open, adding a layer of traditional physical protection. The combination of the two greatly improves the security of the box door 3 and effectively prevents unauthorized personnel from operating.

[0021] The identification lock 2 is internally provided with a camera module, an alarm module and a fingerprint identification module. The identification lock 2 is internally provided with a wireless communication module. When the box 1 needs to be opened, the identification lock 2 is used as the first anti-theft measure. If the thief's fingerprint identification module fails, the alarm module will be triggered and the camera module will be turned on. The thief will be warned and recorded through the two, and the information will be uploaded to the operator's cloud through the wireless communication module for the operator to quickly view.

[0022] A locking groove is provided on the surface of the driving gear 1 5 , and a pull rope is provided between the driving gear 1 5 and the driving gear 2 7 . When the driving gear 1 5 rotates, the pull rope drives the driving gear 2 7 to rotate.

[0023] When the present embodiment is working, when the box body 1 needs to be opened, the first anti-theft measure is performed by identifying the lock 2. If the thief's fingerprint recognition module fails, the alarm module will be triggered and the camera module will be turned on. The thief will be warned and recorded through the two, and uploaded to the operator's cloud through the wireless communication module for the operator to quickly view. If it is an operator, the identification lock 2 is opened and the key 4 is in the operator's hand. At this time, the key 4 is inserted into the key hole and rotated 180 degrees. At this time, the lock buckle 41 rotates under the action of gravity. At this time, the lock buckle 41 is in a vertical state. At this time, the key 4 is moved backward and the lock buckle 41 is fixed by allowing the lock buckle 41 to be stuck in the lock groove. At this time, turning the key 4 counterclockwise causes the driving gear 1 5 to rotate. The driving gear 1 5 rotates so that the tooth block rod 6 moves backward and compresses the No. 1 spring 9. When the tooth block rod 6 is separated from the inner wall of the box body 1, the box door 3 is released from the limit. Double protection is provided by the existing fingerprint lock and the set hidden lock mechanism. The fingerprint lock uses the uniqueness of human fingerprint for identity When the door 3 is closed, the inclined surface of the tooth block rod 6 contacts the box body 1, causing the tooth block rod 6 to move backward and compress the No. 1 spring 9. When the tooth block rod 6 is parallel to the box body 1, the No. 1 spring 9 is released and drives the tooth block rod 6 to insert into the box body 1, thereby limiting the door 3 and achieving a hidden lock.

[0024] See also Figures 1-9 On the basis of the above embodiment, in another embodiment of the present invention, a protective device for protecting electronic facilities and an anti-holding device for preventing the box 1 from being directly moved away are provided inside the box 1. The protective device includes a baffle 20, a chute block 21 and a sealing plate 22. The baffle 20 is fixedly mounted on the inner wall of the box 1, and the internal electronic equipment is shielded by the baffle 20, making it difficult for thieves to directly access the equipment inside the box 1. The chute block 21 is slidably mounted on the inner wall of the baffle 20, and the sealing plate 22 is rotatably mounted on the inner wall of the box 1. A No. 2 spring is provided between the chute block 21 and the baffle 20, and the chute block 21 is reset by the provided No. 2 spring. A No. 1 torsion spring is provided between the sealing plate 22 and the box 1, and the sealing plate 22 is reset by the provided No. 1 torsion spring.

[0025] The protective device also includes a movable plate 23, a confusing plate 24, a tilting rod 25, a sliding block 26, a triangular block 27 and a card block 28. The movable plate 23 is slidably mounted on the inner wall of the box body 1. A No. 3 spring is provided between the movable plate 23 and the box body 1. The movable plate 23 is reset by the No. 3 spring provided. The confusing plate 24 is slidably mounted on the inner wall of the box body 1. The confusing plate 24 may confuse thieves and make them mistakenly believe that there are complex mechanisms or alarm devices in the box, so that they dare not easily start, which has a certain deterrent effect. It is rotatably mounted on the inner wall of the baffle 20, the sliding block 26 is slidably mounted on the surface of the baffle 20, the triangular block 27 is fixedly mounted on the inner wall of the sliding block 26, and the clamping block 28 is slidably mounted on the inner wall of the sliding block 26. A No. 4 spring is provided between the sliding block 26 and the baffle 20, and the sliding block 26 is reset by the provided No. 4 spring. A No. 5 spring is provided between the clamping block 28 and the sliding block 26, and the clamping block 28 is reset by the provided No. 5 spring. The top of the clamping block 28 is set as an inclined surface, and a clamping groove is provided on the side of the movable plate 23 close to the clamping block 28.

[0026] The protective device also includes a main door 29, a limiting mechanism 210 and a movable pulley 211. The main door 29 is slidably installed on the inner wall of the box body 1. The limiting mechanism 210 is set on the inner wall of the box body 1. One side of the movable pulley 211 is in contact with the movable plate 23, and the other side of the movable pulley 211 is in contact with the limiting mechanism 210. A No. 6 spring is provided between the main door 29 and the box body 1. The No. 6 spring is provided to drive the main door 29 to reset, so that the main door 29 pops out, allowing the operator to operate the internal electronic facilities.

[0027] The anti-hold device includes a limiting plate 31 and an L-shaped block 32. The limiting plate 31 is fixedly mounted on the outer wall of the mounting base 30, and the L-shaped block 32 is fixedly mounted on the top of the mounting base 30. The limiting plate 31 prevents the box 1 from moving forward, so that thieves cannot move the entire box 1 away.

[0028] The anti-lock device also includes a docking block 33, a screw 34, a brake rod 35 and a hidden cover 36. The docking block 33 is slidably mounted on the inner wall of the box body 1, the screw 34 is set in the mounting hole of the mounting seat 30, the brake rod 35 is slidably mounted on the inner wall of the L-shaped block 32, and the hidden cover 36 is slidably mounted on the surface of the L-shaped block 32. The hidden cover 36 moves downward to cover the screw 34, making it impossible for thieves to remove the mounting seat 30. A No. 7 spring is provided between the docking block 33 and the box body 1, and the docking block 33 is reset by the provided No. 7 spring. The top of the docking block 33 is set as an inclined surface, a No. 8 spring is provided between the brake rod 35 and the L-shaped block 32, and the brake rod 35 is reset by the provided No. 8 spring. The side of the brake rod 35 close to the docking block 32 is set as an inclined surface, and a No. 9 spring is provided between the hidden cover 36 and the L-shaped block 32, and the hidden cover 36 is reset by the provided No. 9 spring.

[0029] When the present embodiment is working, if a thief opens the box door 3, the internal electronic equipment is blocked by the baffle 20, making it difficult for the thief to directly access the equipment inside the box body 1, thereby reducing the probability of successful theft. At this time, the thief may observe the box body 1 and try to open it from the main door 29. The main door 29 is internally limited by the limiting mechanism 210, making it impossible to open it from the outside, and the No. 6 spring is in a compressed state, which increases the difficulty and time cost of theft. Under normal conditions, the No. 1 spring 9 is in a compressed state, and the operator will rotate the box door 3 to contact the inclined surface of the chute block 21, so that the chute block 21 moves upward. The movement of the chute block 21 will contact the tilting rod 25, and through the lever principle, the other side of the tilting rod 25 is rotated downward, and the other side of the tilting rod 25 is rotated downward. The side rotation will contact the inclined surface of the triangular block 27, causing the sliding block 26 to slide, and the sliding block 26 drives the card block 28 to move. At this time, the No. 3 spring is in a compressed state, and the card block 28 moves out of the card slot. At this time, the No. 3 spring is released and drives the movable plate 23 to move upward. The movable plate 23 moves and drives the confusing plate 24 to move synchronously. At this time, the confusing plate 24 confuses the thief and may make the thief mistakenly believe that there is a complex mechanism or alarm device in the box, so that he dare not easily start the case, which has a certain deterrent effect. The operator needs to pull the correct movable plate 23 upward and, under the setting of the movable pulley 211, the limiting mechanism 210 releases the limit on the main door 29. At this time, the main door 29 pops out, allowing the operator to operate the internal electronic facilities. When the main door 29 is not opened, the docking block 33 moves to the docking point of the box body 1 and the L-shaped block 32. At this time, the box body 1 cannot move upward. By installing the box body 1 on the mounting base 30 and preventing the box body 1 from moving forward through the limiting plate 31, a thief cannot move the box body 1 away as a whole, making it difficult for the thief to take away the entire chassis and the items inside, thereby increasing the difficulty and risk of theft. Even if the thief can open the chassis, it is difficult to move it away, which reduces the possibility of theft to a certain extent. After the main door 29 moves upward and opens, the docking block 33 is reset by the No. 7 spring. At this time, the box body 1 loses connection with the L-shaped block 32. At this time, the movable box body 1 will contact the inclined surface of the brake rod 35 when the docking block 33 is in the connected state, causing the brake rod 35 to move. The movement of the brake rod 35 will contact the top of the hidden cover 36, causing the hidden cover 36 to move downward. The downward movement of the hidden cover 36 will cover the screw 34, making it impossible for the thief to remove the mounting base 30.

[0030] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A computer case with an external anti-theft structure, comprising a case body, a key, and a mounting base, characterized in that: The key is set at the lock hole of the box body, the mounting seat is set at the bottom of the box body, an identification lock is set on the right side of the box body, a lock buckle is installed inside the key, and an anti-theft device is also included; Wherein, the anti-theft device includes a box door, a driving gear 1, a tooth block rod, a driving gear 2, an L-shaped tooth rod and a No. 1 spring, the box door is rotatably mounted on the inner wall of the box door, the driving gear 1 is rotatably mounted on the inner wall of the box door, the tooth block rod is slidably mounted on the surface of the box door, the driving gear 2 is rotatably mounted on the inner wall of the box, the L-shaped tooth rod is slidably mounted on the inner wall of the box, the No. 1 spring is arranged between the box door and the tooth block rod, the driving gear 1 is meshed with the tooth block rod, the driving gear 2 is meshed with the L-shaped tooth rod, and the side of the tooth block rod close to the inner wall of the box is set as an inclined surface; Wherein, a protective device for protecting electronic facilities and an anti-holding device for preventing the box from being directly moved are arranged inside the box.

2. The computer case with an external anti-theft structure according to claim 1, characterized in that: A camera module, an alarm module and a fingerprint recognition module are arranged inside the identification lock, and a wireless communication module is arranged inside the identification lock.

3. The computer case with an external anti-theft structure according to claim 2, characterized in that: A locking groove is provided on the surface of the driving gear 1, and a pull rope is provided between the driving gear 1 and the driving gear 2.

4. The computer case with an external anti-theft structure according to claim 3, characterized in that: The protective device includes a baffle, a chute block and a sealing plate. The baffle is fixedly mounted on the inner wall of the box, the chute block is slidably mounted on the inner wall of the baffle, and the sealing plate is rotatably mounted on the inner wall of the box. A No. 2 spring is arranged between the chute block and the baffle, and a No. 1 torsion spring is arranged between the sealing plate and the box.

5. The computer case with an external anti-theft structure according to claim 4, characterized in that: The protective device also includes a movable plate, a confusing plate, a tilting rod, a sliding block, a triangular block and a card block. The movable plate is slidably mounted on the inner wall of the box, a No. 3 spring is arranged between the movable plate and the box, the confusing plate is slidably mounted on the inner wall of the box, the tilting rod is rotatably mounted on the inner wall of the baffle, the sliding block is slidably mounted on the surface of the baffle, the triangular block is fixedly mounted on the inner wall of the sliding block, the card block is slidably mounted on the inner wall of the sliding block, a No. 4 spring is arranged between the sliding block and the baffle, a No. 5 spring is arranged between the card block and the sliding block, the top of the card block is set as an inclined surface, and a card slot is provided on the side of the movable plate close to the card block.

6. The computer case with an external anti-theft structure according to claim 5, characterized in that: The protective device also includes a main door, a limiting mechanism and a movable pulley. The main door is slidably installed on the inner wall of the box. The limiting mechanism is set on the inner wall of the box. One side of the movable pulley is in contact with the movable plate, and the other side of the movable pulley is in contact with the limiting mechanism. A No. 6 spring is set between the main door and the box.

7. The computer case with an external anti-theft structure according to claim 6, characterized in that: The anti-lock device includes a limiting plate and an L-shaped block. The limiting plate is fixedly mounted on the outer wall of the mounting seat, and the L-shaped block is fixedly mounted on the top of the mounting seat.

8. The computer case with an external anti-theft structure according to claim 7, characterized in that: The anti-lock device also includes a docking block, a screw, a brake rod and a hidden cover. The docking block is slidably installed on the inner wall of the box, the screw is set in the mounting hole of the mounting seat, the brake rod is slidably installed on the inner wall of the L-shaped block, and the hidden cover is slidably installed on the surface of the L-shaped block. A No. 7 spring is arranged between the docking block and the box, the top of the docking block is arranged as an inclined surface, a No. 8 spring is arranged between the brake rod and the L-shaped block, the side of the brake rod close to the docking block is arranged as an inclined surface, and a No. 9 spring is arranged between the hidden cover and the L-shaped block.

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