A theft-proof chain mechanism for hotels

Abstract

The application belongs to the technical field of anti-theft chains, and discloses a hotel anti-theft chain mechanism, which comprises a fixed plate and a positioning plate connected with the fixed plate, a first sliding groove is formed in the side wall of the positioning plate, a communication groove is formed in the positioning plate and communicates with the first sliding groove, a second sliding groove is formed in the inner top wall and the inner bottom wall of the first sliding groove, a positioning disc is slidably arranged in the second sliding groove, a connecting rod is fixed to the side wall of the positioning disc, a fixed block is fixed to the end of the connecting rod, a connecting chain is connected to the fixed block, and a limiting assembly for limiting the positioning disc is arranged on the positioning plate. The application has the effect of improving the safety performance of the anti-theft chain.

Description

Technical Field

[0001] This utility model relates to the field of anti-theft chain technology, and in particular to an anti-theft chain mechanism for hotels. Background Technology

[0002] A security chain lock consists of a sliding chain and a chain link. It is a lockable metal chain installed on the inside of a door. Its working mechanism is as follows: the chain link is located on the back of the door, not far from the edge. One end of the sliding chain is fixed to the door frame, while the other end is movable and can be inserted into the chain link on the back of the door to lock it. When the security chain is engaged, the door can only be opened to a maximum of about 5 to 8 centimeters, making it impossible for a person to pass through or reach the chain link from the doorway. This ensures that the homeowner is not suddenly attacked when opening the door to verify the visitor's identity. Security chain locks are widely used in public rental housing such as hotels, guesthouses, and shared accommodations.

[0003] Existing security chains have simple structures, and most of them can be unlocked by simply sliding. Unauthorized intruders can use specific tools to pry open the chain from the outside of the door, taking advantage of the gap in the door, and thus enter silently at night without damaging the security chain lock to steal customers' belongings, resulting in a poor user experience. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an anti-theft chain mechanism for hotels.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a hotel anti-theft chain mechanism, including a fixed plate and a positioning plate connected to the fixed plate, a first sliding groove is provided on the side wall of the positioning plate, a connecting groove is provided on the positioning plate and communicating with the first sliding groove, a second sliding groove is provided on the inner top wall and inner bottom wall of the first sliding groove, a positioning plate is slidably arranged in the second sliding groove, a connecting rod is fixed on the side wall of the positioning plate, a fixing block is fixed at the end of the connecting rod, a connecting chain is connected to the fixing block, and a limiting component for limiting the positioning plate is provided on the positioning plate.

[0006] By adopting the above technical solution, in order to achieve the effect of limiting the door opening through the fixing plate and connecting chain, the staff needs to pre-fix the fixing plate and connecting chain to the door frame and the door respectively, and then slide the positioning plate into the second slide groove through the connecting groove. This limits the opening angle of the door through the connecting chain, ensuring that the homeowner will not be suddenly attacked when opening the door to confirm the visitor's identity. When the staff connects the positioning plate to the second slide groove, the limiting component automatically blocks the positioning plate, reducing the probability of the positioning plate separating from the second slide groove when the staff slides the positioning plate left or right, thereby improving the anti-theft effect of the anti-theft chain mechanism.

[0007] Furthermore, a limiting groove is formed on the inner top wall of the second slide groove. The limiting component includes a limiting rod slidably disposed in the limiting groove, a compression spring fixed at one end to the upper surface of the limiting rod, and a driving device disposed on the positioning plate for driving the limiting rod. The other end of the compression spring is fixed to the inner top wall of the limiting groove.

[0008] Furthermore, an inclined surface is provided on the edge of the limiting rod where it intersects the side wall and bottom surface of the connecting groove.

[0009] By adopting the above technical solution, when the operator needs to limit the opening angle of the door, the operator needs to connect the positioning plate with the connecting groove and slide the positioning plate to connect it with the second sliding groove. At this time, the limiting rod moves completely into the limiting groove under the action of the inclined surface. Subsequently, when the positioning plate passes the limiting rod, the limiting rod automatically rebounds under the action of the compression spring, thereby blocking the positioning plate and keeping it stable. This reduces the probability that the positioning plate will separate from the second sliding groove under the action of external force.

[0010] Furthermore, a drive groove is provided on the inner wall of the first chute, and the drive device includes a drive rod slidably disposed in the drive groove and a connecting rope with one end fixed to the upper surface of the drive rod, and the other end of the connecting rope is fixed to the upper surface of the limiting rod.

[0011] Furthermore, a return spring is fixed on the side wall of the drive rod away from the first slide groove, and the other end of the return spring is fixed on the inner wall of the drive groove.

[0012] By adopting the above technical solution, when workers need to open the door, they need to separate the positioning plate from the second sliding groove. At this time, workers need to slide the positioning plate away from the connecting groove, which will cause the positioning plate to press against the drive rod. This will allow the drive rod to move completely into the drive groove under the action of the positioning plate, and then the connecting rope will move with the drive rod. This will cause the limiting rod to move upward under the action of the connecting rope and move completely into the limiting groove. Furthermore, workers only need to slide the positioning plate to the right to make the positioning plate slide along the second sliding groove and finally separate from the positioning plate through the connecting groove.

[0013] Furthermore, the inner top wall of the drive groove is provided with a receiving groove for accommodating the connecting rope.

[0014] By adopting the above technical solution, the receiving groove improves the stability of the connecting rope and reduces the probability of the drive rod getting stuck when the operator slides it to the left, thereby improving the user experience of the device.

[0015] Furthermore, a baffle is fixed on the side wall of the drive rod away from the return spring.

[0016] Furthermore, a deceleration rod is fixed on the inner wall of the limiting groove, and the deceleration rod is slidably connected to the limiting rod.

[0017] By adopting the above technical solution, when the operator slides the positioning plate to the right, the positioning plate and the drive rod separate. At this time, the limit rod automatically resets under the action of the compression spring, and the deceleration rod slows down the reset rate of the limit rod, thereby reducing the probability that the limit rod will quickly reset and block the positioning plate again, thus improving the operator's user experience.

[0018] In summary, this utility model has the following beneficial effects: 1. In this application, to achieve the effect of limiting the door's position through the fixing plate and connecting chain, the worker needs to pre-fix the fixing plate and connecting chain to the door frame and door respectively, and then slide the positioning plate into the second sliding groove through the connecting groove. This limits the opening angle of the door through the connecting chain, ensuring that the homeowner is not suddenly attacked when opening the door to verify the visitor's identity. When the worker connects the positioning plate to the second sliding groove, the limiting component automatically blocks the positioning plate, reducing the probability of the positioning plate separating from the second sliding groove when the worker slides the positioning plate left or right, thereby improving the anti-theft effect of the anti-theft chain mechanism. 2. In this application, when the operator needs to limit the opening angle of the door, the operator needs to connect the positioning plate with the connecting groove and slide the positioning plate to connect the positioning plate with the second sliding groove. At this time, the limiting rod moves completely into the limiting groove under the action of the inclined surface. Subsequently, when the positioning plate passes the limiting rod, the limiting rod automatically rebounds under the action of the compression spring, thereby blocking the positioning plate and keeping the positioning plate stable, thus reducing the probability that the positioning plate will separate from the second sliding groove under the action of external force. 3. In this application, when a worker needs to open the gate, the worker needs to separate the positioning plate from the second sliding groove. At this time, the worker needs to slide the positioning plate away from the connecting groove, so that the positioning plate presses against the drive rod, thereby causing the drive rod to move completely into the drive groove under the action of the positioning plate. This causes the connecting rope to move with the drive rod, thereby causing the limiting rod to move upward under the action of the connecting rope and move completely into the limiting groove. Furthermore, the worker only needs to slide the positioning plate to the right to make the positioning plate slide along the second sliding groove, and finally separate from the positioning plate through the connecting groove. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the connecting groove and its connection structure according to an embodiment of the present utility model; Figure 3This is a schematic diagram of the receiving groove and its connection structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the limiting component and its connection structure according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the connecting rod and its connection structure according to an embodiment of the present utility model.

[0020] In the diagram: 1. Fixed plate; 11. Positioning plate; 2. First slide groove; 21. Connecting groove; 22. Second slide groove; 3. Positioning disc; 31. Connecting rod; 4. Fixed block; 41. Connecting chain; 42. Limiting groove; 5. Limiting assembly; 51. Limiting rod; 52. Compression spring; 53. Drive groove; 6. Drive device; 61. Drive rod; 62. Connecting rope; 7. Return spring; 71. Receiving groove; 8. Baffle; 9. Deceleration rod. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] like Figure 1-5 As shown in the figure, this application discloses an anti-theft chain mechanism for hotels, including a fixed plate 1, a positioning plate 11, a positioning disc 3, a connecting rod 31, a fixing block 4, a connecting chain 41, a limiting component 5, a return spring 7, a baffle 8, and a deceleration rod 9. The positioning plate 11 is a plate-shaped structure and is connected to the fixed plate 1. A first sliding groove 2 is formed on the side wall of the positioning plate 11, and a connecting groove 21 is formed on the positioning plate 11 that communicates with the first sliding groove 2. A second sliding groove 22 is formed on the inner top wall and inner bottom wall of the first sliding groove 2. The positioning disc 3 is a circular plate-shaped structure and is slidably disposed in the second sliding groove 22. The connecting rod 31 is a circular rod-shaped structure and is fixed to the side wall of the positioning disc 3. The fixing block 4 is a block-shaped structure and is fixed to the end of the connecting rod 31. The connecting chain 41 is connected to the fixing block 4.

[0023] A limiting groove 42 is formed on the inner top wall of the second slide groove 22. A limiting component 5 is set on the positioning plate 11 to limit the positioning disk 3. The limiting component 5 includes a limiting rod 51, a compression spring 52, and a driving device 6. The limiting rod 51 is a rectangular rod structure. The limiting rod 51 is slidably set in the limiting groove 42, and an inclined surface is formed on the edge of the limiting rod 51 where it intersects with the bottom surface of the side wall near the connecting groove 21. One end of the compression spring 52 is fixed to the upper surface of the limiting rod 51, and the other end of the compression spring 52 is fixed to the inner top wall of the limiting groove 42.

[0024] When the operator needs to limit the opening angle of the door, they need to connect the positioning plate 3 to the connecting groove 21 and slide the positioning plate 3 to connect it to the second sliding groove 22. At this time, the limiting rod 51 moves completely into the limiting groove 42 under the action of the inclined surface. Subsequently, when the positioning plate 3 passes the limiting rod 51, the limiting rod 51 automatically rebounds under the action of the compression spring 52, thereby blocking the positioning plate 3 and keeping the positioning plate 3 stable. This reduces the probability that the positioning plate 3 will separate from the second sliding groove 22 under the action of external force.

[0025] A drive groove 53 is formed on the inner wall of the first slide groove 2. A drive device 6 is mounted on the positioning plate 11 and is used to drive the limiting rod 51. The drive device 6 includes a drive rod 61 and a connecting rope 62. The drive rod 61 is a rectangular rod structure and is slidably disposed in the drive groove 53. One end of the connecting rope 62 is fixed to the upper surface of the drive rod 61, and the other end of the connecting rope 62 is fixed to the upper surface of the limiting rod 51. One end of the return spring 7 is fixed to the side wall of the drive rod 61 away from the first slide groove 2, and the other end of the return spring 7 is fixed to the inner wall of the drive groove 53.

[0026] When staff need to open the gate, they must separate the positioning plate 3 from the second slide groove 22. At this point, staff must slide the positioning plate 3 away from the connecting groove 21, causing it to press against the drive rod 61. This allows the drive rod 61 to move completely into the drive groove 53 under the action of the positioning plate 3. Consequently, the connecting rope 62 moves with the drive rod 61, causing the limiting rod 51 to move upwards and completely into the limiting groove 42 under the action of the connecting rope 62. Further, staff can simply slide the positioning plate 3 to the right, allowing it to slide along the second slide groove 22 and ultimately separate from the positioning plate 11 through the connecting groove 21.

[0027] To improve the user experience of the device, a receiving groove 71 is provided on the inner top wall of the drive groove 53 to accommodate the connecting rope 62. The receiving groove 71 improves the stability of the connecting rope 62 and reduces the probability of the drive rod 61 getting stuck when the operator slides it to the left, thereby improving the user experience of the device.

[0028] The baffle 8 is a plate-shaped structure, fixed to the side wall of the drive rod 61 away from the return spring 7. The deceleration rod 9 is a rod-shaped structure, fixed to the inner wall of the limiting groove 42, and slidably connected to the limiting rod 51. When the operator slides the positioning disk 3 to the right, the positioning disk 3 separates from the drive rod 61. At this time, the limiting rod 51 automatically resets under the action of the compression spring 52. The deceleration rod 9 slows down the reset rate of the limiting rod 51, thereby reducing the probability that the limiting rod 51 will quickly reset and block the positioning disk 3 again, thus improving the user experience.

[0029] The operating principle of the anti-theft chain mechanism for hotels in this embodiment is as follows: In order to achieve the effect of limiting the door opening through the fixing plate 1 and the connecting chain 41, the staff needs to fix the fixing plate 1 and the connecting chain 41 to the door frame and the door respectively in advance, and let the positioning plate 3 slide into the second slide groove 22 through the connecting groove 21. The opening angle of the door can be limited by the connecting chain 41, thereby ensuring that the owner will not be suddenly attacked when opening the door to confirm the identity of the visitor. When the staff connects the positioning plate 3 and the second slide groove 22, the limiting component 5 automatically blocks the positioning plate 3, thereby reducing the probability of the positioning plate 3 separating from the second slide groove 22 when the staff slides the positioning plate 3 left or right, thus improving the anti-theft effect of the anti-theft chain mechanism.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A hotel anti-theft chain mechanism, comprising a fixing plate (1) and a positioning plate (11) interconnected with the fixing plate (1), characterized in that: The positioning plate (11) has a first sliding groove (2) on its side wall and a connecting groove (21) that communicates with the first sliding groove (2). The top and bottom walls of the first sliding groove (2) are provided with a second sliding groove (22). A positioning disk (3) is slidably arranged in the second sliding groove (22). A connecting rod (31) is fixed on the side wall of the positioning disk (3). A fixing block (4) is fixed at the end of the connecting rod (31). A connecting chain (41) is connected to the fixing block (4). A limiting component (5) for limiting the positioning disk (3) is provided on the positioning plate (11).

2. The anti-theft chain mechanism for hotels according to claim 1, characterized in that: A limiting groove (42) is provided on the inner top wall of the second slide groove (22). The limiting component (5) includes a limiting rod (51) slidably disposed in the limiting groove (42), a compression spring (52) with one end fixed to the upper surface of the limiting rod (51), and a driving device (6) disposed on the positioning plate (11) for driving the limiting rod (51). The other end of the compression spring (52) is fixed on the inner top wall of the limiting groove (42).

3. The anti-theft chain mechanism for hotels according to claim 2, characterized in that: The limiting rod (51) has an inclined surface on the edge where it intersects the side wall and bottom surface of the connecting groove (21).

4. The anti-theft chain mechanism for hotels according to claim 3, characterized in that: The inner wall of the first chute (2) is provided with a drive groove (53). The drive device (6) includes a drive rod (61) slidably disposed in the drive groove (53) and a connecting rope (62) with one end fixed to the upper surface of the drive rod (61). The other end of the connecting rope (62) is fixed to the upper surface of the limiting rod (51).

5. The anti-theft chain mechanism for hotels according to claim 4, characterized in that: A return spring (7) is fixed on the side wall of the drive rod (61) away from the first slide groove (2), and the other end of the return spring (7) is fixed on the inner wall of the drive groove (53).

6. The anti-theft chain mechanism for hotels according to claim 5, characterized in that: The inner top wall of the drive groove (53) is provided with a receiving groove (71) for accommodating the connecting rope (62).

7. The anti-theft chain mechanism for hotels according to claim 6, characterized in that: A baffle (8) is fixed on the side wall of the drive rod (61) away from the return spring (7).

8. The anti-theft chain mechanism for hotels according to claim 7, characterized in that: A deceleration rod (9) is fixed on the inner wall of the limiting groove (42), and the deceleration rod (9) is slidably connected to the limiting rod (51).

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