Anti-theft lock device applied to control box and use method thereof

Abstract

The application provides a theftproof lock device applied to a control box and a use method thereof. The theftproof lock device comprises a supporting cylinder, a lock shaft, a rolling shaft, a plurality of rolling balls and a key. A baffle is fixedly connected to the supporting cylinder. The lock shaft is connected to the supporting cylinder. The rolling shaft comprises a shaft body and special screws. The shaft body is rotationally connected to the supporting cylinder. A plurality of threaded holes are arranged at the circumference of the shaft body at intervals. The special screws are threadedly connected to the threaded holes one by one. The rolling balls are arranged between the lock shaft and the rolling shaft. One end of the rolling ball abuts against the lock shaft, and the other end of the rolling ball abuts against the rolling shaft. The key comprises a key rod and a key head connected to the key rod. The key head is used for being connected to the special screws. The special screw has a connecting part which is a bevel gear. The key head is also a bevel gear which can be engaged with the connecting part of each special screw. The application can lock and control the control box. The special unlocking mode is used to prevent theft.

Description

Technical Field

[0001] This invention relates to the field of protective devices for control boxes in ships, and more specifically, to an anti-theft lock device for control boxes and its usage method. Background Technology

[0002] In the field of daily management of control boxes during the construction phase of domestic LNG natural gas ships, many devices on board are equipped with control boxes. The electronic components inside the control boxes of many high-precision instruments and equipment have logical functions. The loss or damage of these components can cause significant losses.

[0003] There are currently no effective means of protecting control boxes. Existing control box technology uses universal marine keys. However, this method is insecure and inconvenient for management and equipment protection. Current management methods involve disassembling and protecting critical components of the equipment, then reinstalling them when needed. This is time-consuming and labor-intensive, resulting in excessive time and manpower costs for production.

[0004] In summary, regardless of which of the above processes is used, the safety requirements for a specific control box cannot be met. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The technical problem that this invention aims to solve is the low effectiveness of existing control box protection methods.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] This invention provides an anti-theft lock device for a control box, comprising a supporting cylinder, a locking shaft, a rolling shaft, multiple rolling balls, and a key; a baffle is fixedly connected to the supporting cylinder; the locking shaft is connected to the supporting cylinder; the rolling shaft includes a shaft body and specific screws, the shaft body is rotatably connected to the supporting cylinder, and multiple threaded holes are spaced apart on the circumference of the shaft body, with the multiple specific screws threadedly connected to the multiple threaded holes one-to-one; the rolling balls are disposed between the locking shaft and the rolling shaft, with one end of the rolling ball abutting against the locking shaft and the other end of the rolling ball abutting against the rolling shaft; the key includes a key bar and a key head connected to the key bar, the key head being used to engage with the specific screws; wherein, the specific screw has a connecting portion, the connecting portion being a bevel gear, and the key head is a bevel gear capable of meshing with the connecting portion of each specific screw.

[0010] Preferably, the key head includes a plurality of bevel gear segments and a drive assembly, the plurality of bevel gear segments are slidably connected to the key bar, the output end of the drive assembly is connected to the bevel gear segments, and the drive assembly is capable of driving the bevel gear segments to open and close radially.

[0011] Preferably, both the locking shaft and the rolling shaft are provided with grooves, and the rolling ball is received in the grooves.

[0012] Preferably, the length of the connecting portion is greater than the gap width between the locking shaft and the rolling shaft.

[0013] Preferably, the supporting cylinder, the locking shaft, and the rolling shaft are made of stainless steel.

[0014] Preferably, there are eight specific screws, and the connecting portions of the eight specific screws together form a keyhole.

[0015] Preferably, the anti-theft lock device applied to the control box further includes a cabinet and a cabinet door, the supporting cylinder is connected to the cabinet door, and in the locked state, the baffle abuts against the cabinet to lock the cabinet door to the cabinet; in the open state, the baffle does not contact the cabinet.

[0016] Secondly, the present invention also provides a method of using the anti-theft lock device for a control box as described in any of the above technical solutions, comprising the following steps:

[0017] Insert the key into the roller and make the key head engage with a specific screw;

[0018] Turning the key causes a specific screw to rotate, and the specific screw moves in the axial direction.

[0019] The end of the specific screw abuts against the lock shaft, and the key drives the lock shaft to rotate;

[0020] The baffle rotates with the lock shaft, and unlocking is achieved after rotating to a preset angle.

[0021] (III) Beneficial Effects

[0022] The above-described technical solution of the present invention has at least the following advantages:

[0023] 1. In this invention, the lock shaft can be driven to rotate only by the cooperation of a key of a specific shape and a screw of a specific shape. The key of a specific shape is difficult to copy. When the key of a specific shape is not available, the device cannot be unlocked, thereby achieving the anti-theft function.

[0024] 2. This invention is simple to use, highly practical, and easy to operate. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is one of the structural schematic diagrams of an anti-theft lock device applied to a control box provided in an embodiment of the present invention.

[0027] Figure 2 This is the second structural schematic diagram of the anti-theft lock device applied to the control box provided in the embodiment of the present invention.

[0028] Figure 3 This is one of the structural schematic diagrams of the key provided in the embodiments of the present invention.

[0029] Figure 4 This is the second schematic diagram of the key structure provided in the embodiment of the present invention.

[0030] The labels for the attached figures are as follows:

[0031] 1. Support cylinder; 2. Locking shaft; 3. Rolling shaft; 4. Rolling ball; 5. Key; 11. Baffle; 31. Shaft body; 32. Specific screw; 33. Threaded hole; 34. Keyhole; 51. Key bar; 52. Key head; 321. Connecting part; 521. Bevel gear lobe. Detailed Implementation

[0032] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0033] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0034] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this invention will be described in more detail below with reference to specific embodiments:

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment of the invention provides an anti-theft lock device for a control box, including a supporting cylinder 1, a locking shaft 2, a rolling shaft 3, multiple rolling balls 4, and a key 5; a baffle 11 is fixedly connected to the supporting cylinder 1; the locking shaft 2 is connected to the supporting cylinder 1; the rolling shaft 3 includes a shaft body 31 and specific screws 32, the shaft body 31 is rotatably connected to the supporting cylinder 1, and multiple threaded holes 33 are arranged at intervals on the circumference of the shaft body 31, and the multiple specific screws 32 are threadedly connected to the multiple threaded holes 33 one by one; the rolling balls 4 are disposed between the locking shaft 2 and the rolling shaft 3, and one end of the rolling ball 4 abuts against the locking shaft 2, and the other end of the rolling ball 4 abuts against the rolling shaft 3; the key 5 includes a key bar 51 and a key head 52 connected to the key bar 51, the key head 52 is used to cooperate with the specific screws 32; wherein, the specific screw 32 has a connecting part 321, the connecting part 321 is a bevel gear, and the key head 52 is a bevel gear that can mesh with the connecting part 321 of each specific screw 32. Specifically, the bevel gear on the key head 52 should be designed to match the bevel gear on the connecting part 321, so as to achieve meshing between the two.

[0037] Preferably, the key head 52 includes a plurality of bevel gear segments 521 and a drive assembly. The plurality of bevel gear segments 521 are slidably connected to the key bar 51, and the output end of the drive assembly is connected to the bevel gear segments 521. The drive assembly can drive the bevel gear segments 521 to open and close radially.

[0038] Preferably, both the locking shaft 2 and the rolling shaft 3 are provided with grooves, and the rolling ball 4 is received in the grooves.

[0039] Preferably, the length of the connecting part 321 is greater than the gap width between the locking shaft 2 and the rolling shaft 3.

[0040] Preferably, the supporting cylinder 1, the locking shaft 2, and the rolling shaft 3 are made of stainless steel. Stainless steel has a certain degree of structural toughness.

[0041] Preferably, there are eight specific screws 32, and the connecting portions of the eight specific screws 32 together form a keyhole 34.

[0042] Preferably, the anti-theft lock device applied to the control box also includes a cabinet and a cabinet door. The supporting column 1 is connected to the cabinet door. In the locked state, the baffle 11 abuts against the cabinet so that the cabinet door is locked to the cabinet. In the open state, the baffle 11 does not contact the cabinet.

[0043] Secondly, the present invention also provides a method for using an anti-theft lock device applied to a control box according to any of the above-mentioned technical solutions, comprising the following steps:

[0044] Insert the key 5 into the roller 3, and make the key head 52 engage with the specific screw 32;

[0045] Turning key 5 causes a specific screw 32 to rotate, and the specific screw 32 moves along the axial direction.

[0046] The end of a specific screw 32 abuts against the lock shaft 2, and the key 5 drives the lock shaft 2 to rotate;

[0047] The baffle 11 rotates with the locking shaft 2, and unlocks after rotating to a preset angle.

[0048] Specifically, with Figure 1 The illustrated embodiment is used as an example. In use, the key 5 is inserted into the rolling shaft 3, so that the key head 52 engages with the connecting parts 321 of the eight specific screws 32 (i.e., the bevel gears on the key 5 mesh with the bevel gears on the eight specific screws 32 respectively). Due to the balance of forces, the forces on the two oppositely positioned specific screws 32 cancel each other out. At this time, the rolling shaft 3 does not rotate, and the specific screws 32 rotate along the threads and extend into the cavity between the rolling shaft 3 and the lock shaft 2. Continue to screw the key 5 in, and expand the key head 52, so that the three bevel gear petals 521 of the key head 52 move outward and expand, so as to achieve constant engagement between the bevel gear petals 521 and the connecting parts 321. When the key 5 is rotated a certain number of times, the ends of the eight specific screws 32 abut against the inner wall of the lock shaft 2. At this time, since the specific screws 32 can no longer move forward, under the action of friction, continuing to turn the key 5 will drive the lock shaft 2 to rotate, which in turn drives the supporting cylinder 1 to rotate (i.e., drives the baffle to rotate), so that the baffle is disengaged from the position limiting the cabinet door, and the lock is unlocked. After opening, the eight specific screws 32 need to be reset with a specific key.

[0049] A damping ring is provided at the connection between the rolling shaft 3 and the supporting cylinder 1. The damping ring can provide a damping force for the rotation of the rolling shaft 3. When the key 5 is inserted into the rolling shaft 3, the damping force can prevent the rolling shaft 3 from rotating prematurely due to the key 5 failing to cooperate with the connecting part 321, so as to provide sufficient buffer time for the rolling shaft 3 and the connecting part 321 to cooperate and complete the connection.

[0050] When the key 5 is incorrect, the key inserted into the roller 3 can only drive the roller 3 to rotate, and cannot unlock the device, thus achieving the anti-theft function.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An anti-theft lock device for use in a control box, characterized in that, The application relates to an anti-theft lock device applied to a control box. The anti-theft lock device comprises a support cylinder, a lock shaft, a rolling shaft, a plurality of rolling balls, a key and a baffle. The baffle is fixedly connected to the support cylinder. The lock shaft is connected to the support cylinder. The rolling shaft comprises a shaft body and a plurality of special screws. The shaft body is rotationally connected to the support cylinder. A plurality of threaded holes are arranged on the circumferential side of the shaft body.

2. The anti-theft lock device applied to a control box according to claim 1, characterized in that, The plurality of special screws are threadedly connected to the plurality of threaded holes.

3. The anti-theft lock device applied to a control box according to claim 1, wherein, The rolling balls are arranged between the lock shaft and the rolling shaft.

4. The anti-theft lock device applied to a control box according to claim 1, wherein, One end of the rolling ball abuts against the lock shaft.

5. The anti-theft lock device applied to a control box according to claim 1, wherein, The other end of the rolling ball abuts against the rolling shaft.

6. The anti-theft lock device applied to a control box according to claim 1, wherein, The key comprises a key rod and a key head connected to the key rod.

7. A method of using the anti-theft lock device applied to a control box according to any one of claims 1 to 6, characterized in that, The key head is used for cooperating with the special screws. The special screw has a connecting part. The connecting part is a bevel gear. The key head comprises a plurality of bevel gear petals and a driving assembly. The plurality of bevel gear petals are slidingly connected to the key rod. The output end of the driving assembly is connected to the bevel gear petals. The driving assembly can drive the bevel gear petals to open and close along the radial direction. The lock shaft and the rolling shaft are provided with sliding grooves. The rolling balls are accommodated in the sliding grooves. The length of the connecting part is greater than the gap width between the lock shaft and the rolling shaft. The support cylinder, the lock shaft and the rolling shaft are made of stainless steel. The special screws are eight. The connecting parts of the eight special screws enclose a spoon hole. The anti-theft lock device applied to the control box further comprises a cabinet body and a cabinet door. The support cylinder is connected to the cabinet door. In the locked state, the baffle abuts against the cabinet body so that the cabinet door is locked with the cabinet body. In the opened state, the baffle does not contact the cabinet body. The application further relates to a key inserting method of the anti-theft lock device. The key is inserted into the rolling shaft. The key head cooperates with the special screws. The key drives the special screws to rotate and move along the axial direction. The end of the special screw abuts against the lock shaft. The key drives the lock shaft to rotate. The baffle rotates with the lock shaft. After rotating to a preset angle, the lock is opened.

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