Anti-theft device
By designing the mounting base, connectors, and locking mechanism of the anti-theft device, the problem of easy theft of marine navigation instruments was solved, and the equipment was securely fixed and convenient to use.
Patent Information
- Application Number
- CN202520771438.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-22
AI Technical Summary
In the existing technology, the display of marine navigation instruments is fixed to the hull by a simple bolt structure or knob, which is easily opened by thieves, resulting in the theft of the display and failing to meet the security needs of ship owners.
An anti-theft device is designed, including a fixed base, a connector, a movable part, and a locking mechanism. The movable part covers the connector, and the locking mechanism locks it in place, preventing the connector from being exposed to the outside and preventing it from being disassembled.
It effectively prevents theft of marine navigation devices, allowing boat owners to leave the hull without disassembling the equipment, thus ensuring property safety and providing convenience.
Smart Images

Figure CN223825967U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of anti-theft locks, and specifically to an anti-theft device. Background Technology
[0002] Marine navigation systems are frequently used on ships. These systems primarily consist of a display screen, which is mounted on the hull using a bracket. For hulls where the display needs to be exposed, or hulls lack enclosed spaces, the display screen is typically detachably connected to the hull. When not in use, the ship owner can remove the display screen and take it with them, preventing damage or theft due to exposure.
[0003] However, in some special cases, boat owners may only be temporarily away and do not need to take the monitor with them. Marine navigation monitors are typically only mounted and secured to the hull using simple bolts or knobs. These exposed bolts or knobs are easily accessible to thieves, allowing them to easily open and steal the monitor. Therefore, securing marine navigation devices with exposed bolts is no longer sufficient for boat owners' needs. Utility Model Content
[0004] To solve, or at least partially solve, the aforementioned technical problems, this application provides an anti-theft device, comprising:
[0005] A mounting base has a slot on its surface, the slot having at least one insertion port, and a first mounting hole provided on the inner surface of the slot.
[0006] The connector is detachably disposed in the first mounting hole and partially extends from the first mounting hole to the outside of the fixing base for connecting and fixing items.
[0007] The movable part is detachably inserted into the slot along the insertion port to cover the first mounting hole;
[0008] A locking mechanism is used to lock the movable part to the fixed base.
[0009] Optionally, the first mounting hole includes:
[0010] A countersunk hole is provided on the inner surface of the slot, and the countersunk hole is used to limit the position of the connector;
[0011] A first through hole is provided on the bottom surface of the countersunk hole, and the first through hole extends to the surface of the fixing base for the connection member to pass through.
[0012] Optionally, the connector includes a bolt, the head of which is confined within the countersunk hole, and the shank of which passes through the first through hole and extends to the outside of the fixing seat for connecting and fixing items.
[0013] Optionally, the slot extends to opposite side surfaces of the mounting base to form a first socket and a second socket located on opposite sides of the mounting base, and the movable member can be inserted into or withdrawn from the slot along either the first socket or the second socket.
[0014] Optionally, the inner wall surfaces on opposite sides of the slot are respectively provided with sliding grooves, and the opposite sides of the movable member are respectively provided with sliders. The movable member is inserted into the slot through the cooperation of the sliders and the sliding grooves.
[0015] Optionally, the movable element includes a baffle plate that is flush with the surface of the fixed base when inserted into the slot.
[0016] Optionally, the surfaces of the first socket and the second socket are respectively outwardly protruding first conical surfaces;
[0017] The two ends of the movable component are respectively second conical surfaces corresponding to the first conical surface. When the movable component is inserted into the slot, the first conical surface and the second conical surface are flush.
[0018] Optionally, the locking mechanism includes:
[0019] key;
[0020] A lock is provided on either the movable member or the fixed base, and locks or unlocks the movable member and the fixed base in response to the control of the key.
[0021] Optionally, the lock is disposed on the movable member; wherein,
[0022] The movable component is provided with a second mounting hole, and the lock is disposed in the second mounting hole;
[0023] The slot surface is provided with a lock hole corresponding to the lock, and the opening direction of the lock hole is set at an angle to the opening direction of the socket. The lock is inserted into the lock hole to limit the movable part and the fixed base.
[0024] Optionally, the slot is provided with a plurality of second through holes that pass through the fixing seat. The second through holes are used to set a positioning member, which passes through the second through holes to fix the fixing seat to the external bracket.
[0025] The anti-theft device provided in this application has a slot on the surface of the fixed base, the slot having at least one insertion port, and a first mounting hole on the inner surface of the slot; a connector is detachably disposed in the first mounting hole and partially extends out of the mounting hole to the outside of the fixed base for connecting and fixing items; a movable part is detachably inserted into the slot along the insertion port to cover the first mounting hole; a locking mechanism is used to lock the movable part to the fixed base. This anti-theft device covers the connector for the marine navigation device with the movable part and locks the movable part with the locking mechanism. Since the connector is completely covered, it cannot be unlocked, avoiding the risk of the marine navigation device being stolen. The boat owner can leave the hull without disassembling the marine navigation device, providing great convenience to the boat owner and ensuring the safety of the boat owner's property. Attached Figure Description
[0026] To more clearly illustrate the embodiments of this application, the relevant drawings will be briefly described below. It is understood that the drawings described below are only for illustrating some embodiments of this application, and those skilled in the art can obtain many other technical features and connections not mentioned herein based on these drawings.
[0027] Figure 1 This is a schematic diagram of the anti-theft device of this application from one angle;
[0028] Figure 2 This is a structural schematic diagram of the anti-theft device of this application from another angle;
[0029] Figure 3 This is an explosion diagram of the anti-theft device of this application;
[0030] Figure 4 This is a schematic diagram of the structure of the mounting base for the anti-theft device of this application.
[0031] Explanation of reference numerals in the attached figures:
[0032] 100. Fixing base; 110. Slot; 111. First socket; 112. Second socket; 120. First mounting hole; 121. Countersunk hole; 122. First through hole; 130. Sliding groove; 140. First tapered surface; 150. Second through hole; 160. Locking hole;
[0033] 200. Connecting parts;
[0034] 300, Moving part; 310, Slider; 320, Second tapered surface; 330, Second mounting hole; 340, Third through hole;
[0035] 400. Locking mechanism; 410. Key; 420. Lock. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0037] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0038] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0039] Because existing marine navigation devices are mounted on the hull using simple fixing structures and exposed to the outside, these structures are easily opened when the ship owner leaves, leading to theft and economic losses. To prevent theft of marine navigation devices, this application proposes further improvements to the fixing structures used to secure such devices, thereby ensuring the safety of the ship owner's property.
[0040] The technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0041] This embodiment provides an anti-theft device that can be used to secure items, such as fixing a marine navigation device to a bracket on the hull, and can hide the corresponding fixing structure to prevent the marine navigation device from being easily disassembled and stolen.
[0042] This embodiment will be illustrated using the installation and fixing of a marine navigation system as an example.
[0043] like Figure 1 and Figure 2 As shown, the anti-theft device provided in this embodiment includes a fixed base 100, a connector 200, a movable part 300, and a locking mechanism 400.
[0044] The connector 200 is mounted on the fixed base 100 for connecting the marine navigation device. The fixed base 100 and the connector 200 cooperate to fix the marine navigation device on the mounting bracket on the hull. The movable part 300 forms a movable cooperation relationship with the fixed base 100, which can cover the connector 200 and prevent the connector 200 from being exposed to the outside. The locking mechanism 400 locks the movable part 300 and the fixed base 100 together.
[0045] Please see Figure 3 In this embodiment, a slot 110 is provided on one side surface of the mounting base 100, and a first mounting hole 120 is provided on the bottom surface of the slot 110. The connector 200 is detachably disposed in the first mounting hole 120, and a portion of the connector 200 extends out of the first mounting hole 120 to the outside of the mounting base 100 for connection with a marine navigation instrument.
[0046] In this embodiment, the slot 110 has at least one insertion port, which allows the movable member 300 to be inserted into the slot 110 along the insertion port. When the movable member 300 is in the slot 110, the connector 200 in the first mounting hole 120 is completely covered, so that the connector 200 is not exposed to the outside. Since the movable member 300 is detachably connected to the fixed base 100, after the movable member 300 is inserted into the slot 110, this embodiment locks the movable member 300 to the fixed base 100 by the locking mechanism 400. In this way, the movable member 300 and the fixed base 100 are limited and fixed, the movable member 300 cannot be moved out of the slot 110, and the connector 200 cannot be opened, thereby achieving an anti-theft effect.
[0047] The locking mechanism 400 needs to be opened by the ship owner. Only after the locking mechanism 400 is opened and the connector 200 is moved out of the slot 110, exposing the movable part 300, can the movable part 300 be opened and the marine navigation device removed.
[0048] The anti-theft device provided in this application covers the connector 200 of the marine navigation device through the movable part 300, and locks the movable part 300 through the locking mechanism 400. The connector 200 is completely covered and cannot be unlocked, thus avoiding the risk of the marine navigation device being stolen. The boat owner can leave the hull without disassembling the marine navigation device, which provides great convenience to the boat owner and protects the property safety of the boat owner.
[0049] like Figure 4As shown, specifically, in one embodiment, the first mounting hole 120 is configured as a two-section structure, namely a countersunk hole 121 and a first through hole 122. The countersunk hole 121 is disposed on the inner surface of the slot 110, specifically on the bottom surface of the slot 110, and the first through hole 122 is disposed on the bottom surface of the countersunk hole 121, extending through to the surface of the fixing base 100. The diameter of the countersunk hole 121 is larger than the diameter of the first through hole 122, thereby allowing the connector 200 to be confined within the countersunk hole 121.
[0050] In this embodiment, a portion of the connector 200 is located inside the countersunk hole 121, and another portion extends through the first through hole 122 to the surface of the mounting base 100 for connecting and fixing the marine navigation instrument.
[0051] Specifically, the connector 200 adopts a bolt structure, which includes a bolt head and a threaded rod. The shape and size of the bolt head are adapted to the countersunk hole 121. The threaded rod may be inserted from the countersunk hole 121 into the first through hole 122 and extend to the other end of the fixing seat 100. The bolt head is confined within the countersunk hole 121, and the threaded rod extending out of the fixing seat 100 can be connected with the threaded structure on the marine navigation instrument.
[0052] In this embodiment, the surface of the mounting base 100 near the marine navigator can be flat. When installing the marine navigator, the marine navigator is positioned on the hull bracket, and the marine navigator is fixed to the hull bracket by bolts passing through the first mounting hole 120. One side surface of the mounting base 100 can fit against the connection part of the marine navigator to abut and fix the marine navigator; or other auxiliary structures can be provided between the mounting base 100 and the connection part of the marine navigator to achieve the fixation of the marine navigator.
[0053] In this embodiment, the bolt head can be completely recessed into the countersunk hole 121, so that the bottom surface of the slot 110 is flush and the movable part 300 can fit flatly with the slot 110, thereby improving the connection strength between the movable part 300 and the fixed base 100.
[0054] Of course, the bolt head can also protrude outside the countersunk hole 121, making the inside of the slot 110 uneven. In this case, the movable part 300 can adopt a corresponding shape or set a corresponding clearance groove, as long as it can completely cover the bolt head.
[0055] like Figure 4 As shown, in one embodiment, the slot 110 is a through slot extending to opposite side surfaces of the mounting base 100 to form a first socket 111 and a second socket 112 located on opposite sides of the mounting base 100. The movable member 300 can be inserted into or withdrawn from the slot 110 along either the first socket 111 or the second socket 112 to facilitate the insertion or removal of the movable member 300.
[0056] Furthermore, the inner wall surfaces on opposite sides of the slot 110 are respectively provided with sliding grooves 130, the two ends of which extend to the first insertion port 111 and the second insertion port 112, respectively. The opposite sides of the movable member 300 are respectively provided with sliders 310, and the movable member 300 is inserted into the slot 110 through the cooperation of the sliders 310 and the sliding grooves 130. The cooperation between the sliders 310 and the sliding grooves 130 not only guides the sliding of the movable member 300, allowing it to be easily inserted into the slot 110, but also serves to limit the movement of the movable member 300.
[0057] like Figure 3 As shown, the opening direction of slot 110 is away from the fixed base 100, and the opening direction of slot 110 is perpendicular to the direction of the first insertion port 111 and the second insertion port 112, that is, the axial direction of the connector 200 in the figure. The direction of the first through hole 122 is consistent with the opening direction of slot 110. Since slider 310 is engaged in slide groove 130, movable part 300 can only move along the direction of slide groove 130 and cannot disengage from the opening direction of slot 110. Therefore, the cooperation between slider 310 and slide groove 130 plays a limiting role in moving part 300.
[0058] Of course, in some embodiments, the slot 110 may also have only one socket, and the movable part 300 is inserted into and removed from only the single socket.
[0059] In one embodiment, the movable member 300 may be a baffle plate, the depth of the slot 110 is the same as the thickness of the baffle plate, and the baffle plate is flush with the surface of the fixed seat 100 when inserted into the slot 110, ensuring the surface flatness of the device in the locked state.
[0060] The movable part 300 in this embodiment is not limited to a cover plate. It can be other structural shapes, as long as it can slide within the slot 110 and cover the connector 200. This embodiment does not impose a unique limitation.
[0061] Please see Figures 1 to 4 In one embodiment, the surfaces of the first insertion port 111 and the second insertion port 112 are respectively outwardly protruding first conical surfaces 140, and the two ends of the movable member 300 are respectively second conical surfaces 320 corresponding to the first conical surfaces 140. When the movable member 300 is inserted into the slot 110, the first conical surface 140 and the second conical surface 320 are flush. This not only ensures the surface flatness of the device in the locked state, but also allows part of the movable member 300 to protrude from the slot 110. After unlocking the locking mechanism 400, the movable member 300 can be dislodged from the slot 110 by pushing the second conical surface 320 of the movable member 300, facilitating disassembly. Similarly, the conical appearance design also enhances the aesthetics of the device.
[0062] In some embodiments, the movable part 300 is not limited to completely filling the entire slot 110. The interior of the slot 110 can be divided into at least a first part and a second part, wherein the first part is provided with the aforementioned first mounting hole 120, and the connector 200 is located within the first part of the slot 110; the second part is a temporary holding position for the movable part 300. In the locked state, the movable part 300 is only located within the first part to cover the connector 200; when unlocked, the movable part 300 can move from the first part to the second part, thereby exposing the connector 200. This design ensures that the movable part 300 does not detach from the fixing base 100, avoiding the loss of too many parts.
[0063] The locking mechanism 400 mentioned in this embodiment can be any locking structure in the prior art, as long as it can lock the movable part 300 and the fixed base 100 so that the two cannot move relative to each other, or restrict the movement of the movable part 300 so that the connecting part 200 is exposed to the outside.
[0064] Preferably, this embodiment provides a specific structure of a locking mechanism 400, which includes a key 410 and a lock 420. The lock 420 is disposed on either the movable part 300 or the fixed base 100. The key 410 is carried by the ship owner and is used to insert into the lock 420 to lock or unlock the lock 420.
[0065] like Figure 3 As shown, specifically, in one embodiment, the lock 420 is disposed on the movable member 300; wherein, the movable member 300 is provided with a second mounting hole 330, and the lock 420 is disposed in the second mounting hole 330; the surface of the slot 110 is provided with a lock hole 160 corresponding to the lock 420, the opening direction of the lock hole 160 is set at an angle to the opening direction of the insertion port, and the lock 420 is inserted into the lock hole 160 to limit the movable member 300 and the fixed base 100.
[0066] The keyhole 160 is connected to the second mounting hole 330. When the lock 420 is installed in the second mounting hole 330, the bolt of the lock 420 corresponds to the keyhole 160. By locking with the key 410, the bolt extends into the keyhole 160 to limit the movement of the movable part 300 relative to the fixed seat 100. After unlocking, the bolt retracts, allowing the movable part 300 to slide relative to the fixed seat 100.
[0067] like Figure 3 As shown, a third through hole 340 is also provided on the side surface of the movable part 300. The third through hole 340 connects to the second mounting hole 330. A lock hole corresponding to the third through hole 340 is also provided on the side wall of the slot 110. The other locking tongue of the lock 420 cooperates with the lock hole through the third through hole 340 to lock the movable part 300 and the fixed seat 100.
[0068] The two locking holes are located on different surfaces of the slot 110, thereby reinforcing the locking effect between the movable part 300 and the fixed seat 100.
[0069] Please see Figure 2 and Figure 4 In this embodiment, the slot 110 is provided with a plurality of second through holes 150 that pass through the fixing seat 100. The plurality of second through holes 150 are arranged around the first mounting hole 120. The fixing seat 100 can be fixed to the external bracket by the positioning member passing through the second through holes 150, so that the fixing seat 100 and the hull are fixed together.
[0070] The positioning element is located inside the slot 110 and can be blocked by the movable part 300 to prevent disassembly of the fixed base 100.
[0071] This embodiment does not limit the structure of the positioning component to a single one. The positioning component can also be a bolt or other structure. It is used in conjunction with the connector 200 to improve the torsional resistance of the fixed seat 100, thereby further strengthening the connection strength of the marine navigation instrument.
[0072] The anti-theft device in the above embodiment has been described in detail with reference to its application in the installation of marine navigation instruments. However, the application of the anti-theft device in this embodiment is not limited to this. It can also be used for some installation products that lack enclosed space and are exposed, such as operating switches, cabinet doors, or vehicle locks.
[0073] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An anti-theft device, characterized in that, include: The mounting base (100) has a slot (110) on its surface, the slot (110) has at least one insertion port, and the inner surface of the slot (110) is provided with a first mounting hole (120); The connector (200) is detachably disposed in the first mounting hole (120) and partially extends from the first mounting hole (120) to the outside of the fixing seat (100) for connecting and fixing items; The movable part (300) is detachably inserted into the slot (110) along the insertion port to cover the first mounting hole (120); A locking mechanism (400) is used to lock the movable part (300) to the fixed base (100).
2. The anti-theft device according to claim 1, characterized in that, The first mounting hole (120) includes: A countersunk hole (121) is provided on the inner surface of the slot (110), the countersunk hole (121) is used to limit the connector (200); A first through hole (122) is provided on the bottom surface of the countersunk hole (121), and the first through hole (122) extends through to the surface of the fixing base (100) for the connection member (200) to pass through.
3. The anti-theft device according to claim 2, characterized in that, The connector (200) includes a bolt, the head of which is confined within the countersunk hole (121), and the shank of which passes through the first through hole (122) and extends to the outside of the fixing seat (100) for connecting and fixing items.
4. The anti-theft device according to claim 1, characterized in that, The slot (110) extends to the opposite two side surfaces of the fixed base (100) to form a first socket (111) and a second socket (112) located on opposite sides of the fixed base (100), and the movable member (300) can be inserted into or withdrawn from the slot (110) along either the first socket (111) or the second socket (112).
5. The anti-theft device according to claim 4, characterized in that, The inner wall surfaces of the opposite sides of the slot (110) are respectively provided with grooves (130), and the opposite sides of the movable part (300) are respectively provided with sliders (310). The movable part (300) is inserted into the slot (110) through the cooperation of the sliders (310) and the grooves (130).
6. The anti-theft device according to claim 5, characterized in that, The movable component (300) includes a baffle plate that is flush with the surface of the fixed base (100) when inserted into the slot (110).
7. The anti-theft device according to claim 6, characterized in that, The surfaces where the first socket (111) and the second socket (112) are located are respectively outwardly protruding first conical surfaces (140); The two ends of the movable part (300) are respectively second conical surfaces (320) corresponding to the first conical surface (140). When the movable part (300) is inserted into the slot (110), the first conical surface (140) and the second conical surface (320) are flush.
8. The anti-theft device according to any one of claims 1 to 7, characterized in that, The locking mechanism (400) includes: Key (410); A lock (420) is disposed on either the movable member (300) or the fixed base (100), and locks or unlocks the movable member (300) and the fixed base (100) in response to the control of the key (410).
9. The anti-theft device according to claim 8, characterized in that, The lock (420) is disposed on the movable member (300); wherein, The movable part (300) is provided with a second mounting hole (330), and the lock (420) is disposed in the second mounting hole (330); The slot (110) surface is provided with a lock hole (160) corresponding to the lock (420). The opening direction of the lock hole (160) is set at an angle to the opening direction of the socket. The lock (420) is inserted into the lock hole (160) to limit the movable part (300) and the fixed base (100).
10. The anti-theft device according to any one of claims 1 to 7, characterized in that, The slot (110) is provided with a plurality of second through holes (150) that pass through the fixed seat (100). The second through holes (150) are used to set positioning members. The positioning members pass through the second through holes (150) to fix the fixed seat (100) to the external bracket.