Safety door control device

Abstract

The utility model relates to the technical field of door control, and discloses a safety door control device which comprises a controller body, an optical fiber connecting pipe is arranged on the side face of the controller body, a splicing mechanism is arranged at an interface of the optical fiber connecting pipe, and the splicing mechanism comprises a circular connector fixedly installed on the surface of the optical fiber connecting pipe. The interior of the circular connector is movably connected with a connecting piece. According to the safety door control device, the hexagonal block drives the threaded sleeve to rotate, mechanical fastening connection is achieved through the self-locking characteristic of a thread pair, loose connection of the optical fiber connecting pipe caused by external vibration, impact or pulling is effectively resisted, balls on the surface of the connecting piece and the inner wall of the containing cavity form low-friction rolling contact, and axial limiting of the limiting ring is matched, so that the safety door control device is more reliable. The threaded sleeve is allowed to still retain a small displacement space after being screwed, deformation caused by installation errors or thermal expansion and cold contraction can be automatically adapted, the threaded contact area is enlarged, stress concentration is avoided, and the connection reliability is further improved.

Description

Technical Field

[0001] This utility model relates to the field of door control technology, specifically a security door control device. Background Technology

[0002] Security access control refers to a security solution that uses access control systems, sensors, locking devices, and other technologies to intelligently manage entrance and exit channels. Its core objectives are to achieve physical isolation, access control, status monitoring, and emergency response, covering commercial buildings, industrial sites, public facilities, and home scenarios.

[0003] Traditional gated fiber optic connector connection methods, such as direct plug-in and snap-fit ​​fixing, are prone to loosening under dynamic environments, vibration, impact, and other external forces, leading to interruption or attenuation of optical signal transmission. For example, the mechanical impact generated by the frequent opening and closing of security doors is transmitted to the fiber optic interface, affecting the transmission performance of the fiber optic connector. To address these issues, we propose a security gate control device. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a safety gate control device that solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a safety gate control device, comprising: a controller body, an optical fiber connector is provided on the side of the controller body, a splicing mechanism is provided at the interface of the optical fiber connector, the splicing mechanism includes a circular connector fixedly installed on the surface of the optical fiber connector, a connector is movably connected inside the circular connector; a hexagonal block is fixedly installed through the side of the circular connector, a threaded sleeve is fixedly installed on the side of the hexagonal block, the end face of the threaded sleeve is chamfered, and the inside of the threaded sleeve is provided with a cavity for accommodating the end of the optical fiber connector.

[0006] Preferably, the circular connector has an internal receiving cavity, and the side of the circular connector has an annular hole of the same size as the connector for passing through the connector.

[0007] Preferably, a limiting ring and a thickening ring are fixedly installed on the outer surface of the connector, and both the limiting ring and the thickening ring are located inside the receiving cavity.

[0008] Preferably, the surface of the thickened ring is rotatably connected to a ball bearing, and the outer surface of the ball bearing can make movable contact with the inner wall of the receiving cavity.

[0009] Preferably, the center of the hexagonal block has a through hole for the fiber core of the optical fiber connector to pass through.

[0010] Preferably, the axis of the threaded sleeve coincides with the axis of the fiber optic connector, and a gap is provided between the inner surface of the threaded sleeve and the outer surface of the fiber optic connector.

[0011] Preferably, the hexagonal block, the circular connector, and the threaded sleeve are all made of low-alloy wear-resistant steel.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This safety gate control device drives the threaded sleeve to rotate via a hexagonal block, utilizing the self-locking characteristic of the threaded pair to achieve a mechanical fastening connection. This effectively resists loosening of the fiber optic connector connection caused by external vibration, impact, or pulling. Furthermore, the balls on the surface of the connector form a low-friction rolling contact with the inner wall of the receiving cavity. Combined with the axial limiting of the limiting ring, the threaded sleeve retains a small displacement space after being tightened. It can automatically adapt to deformation caused by installation errors or thermal expansion and contraction, expand the thread contact area, avoid stress concentration, and further improve the reliability of the connection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of the splicing mechanism structure of this utility model;

[0016] Figure 3 This is an exploded view of the hexagonal block structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the thickened ring structure of this utility model.

[0018] In the diagram: 1. Controller body; 2. Fiber optic connector; 3. Splicing mechanism; 31. Circular connector; 32. Hexagonal block; 33. Threaded sleeve; 34. Connector; 35. Receiving cavity; 36. Limiting ring; 37. Thickened ring; 38. Ball bearing; 39. Chamfered end. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4A safety gate control device includes: a controller body 1, an optical fiber connector 2 disposed on the side of the controller body 1, a splicing mechanism 3 disposed at the interface of the optical fiber connector 2, the splicing mechanism 3 including a circular connector 31 fixedly installed on the surface of the optical fiber connector 2, a connector 34 movably connected inside the circular connector 31; the circular connector 31 has a receiving cavity 35 inside, and an annular hole of the same size as the connector 34 is opened on the side of the circular connector 31 for passing through the connector 34; the circular connector 31 restricts the movement trajectory of the connector 34 through the precise fit between the internal receiving cavity 35 and the annular hole, prevents assembly eccentricity, and ensures the alignment accuracy of the optical fiber core.

[0021] A hexagonal block 32 is fixedly installed on the side of the connector 34 through the circular connector 31. A through hole for the fiber core of the fiber optic connector 2 is opened in the center of the hexagonal block 32. A threaded sleeve 33 is fixedly installed on the side of the hexagonal block 32. One end of the connector 34 is connected to the hexagonal block 32, and the other end contacts the inner wall of the circular connector 31 through a thickened ring 37 and a ball bearing 38. This converts the rotational torque into axial displacement of the threaded sleeve 33, achieving mechanical locking through the threaded engagement. A chamfered end 39 is provided on the end face of the threaded sleeve 33. The chamfered end 39 guides the end of the fiber optic connector 2 to be smoothly inserted, improving the assembly success rate and reducing insertion damage. The axis of the threaded sleeve 33 coincides with the axis of the fiber optic connector 2, and the threaded sleeve... The inner surface of the threaded sleeve 33 has a gap with the outer surface of the fiber optic connector 2, and the inside of the threaded sleeve 33 has a cavity for accommodating the end of the fiber optic connector 2. The outer surface of the connector 34 is fixedly installed with a limiting ring 36 and a thickening ring 37, both of which are located inside the receiving cavity 35. The surface of the thickening ring 37 is rotatably connected with a ball 38, and the outer surface of the ball 38 can make movable contact with the inner wall of the receiving cavity 35. The ball 38 and the inner wall of the receiving cavity 35 form rolling friction, reducing sliding friction loss, while retaining radial micro-displacement space to adapt to actual installation errors. The hexagonal block 32, the circular connector 31, and the threaded sleeve 33 are all made of low alloy wear-resistant steel.

[0022] In another embodiment, the temperature rise of the electromagnet inside the controller body 1 is mainly due to the current passing through its coil. Therefore, the average voltage and current applied to the electromagnet are adjusted by changing the duty cycle of the pulse signal, thereby controlling its heating power and ultimately achieving temperature control. When the duty cycle increases, the average voltage and current increase, the heating power of the electromagnet increases, and the temperature rises; conversely, when the duty cycle decreases, the temperature drops.

[0023] Working principle: The fiber optic connector 2 of the controller body 1 is connected to the safety door system through the splicing mechanism 3. First, the port of the fiber optic connector 2 is inserted. Then, a wrench is used to rotate the threaded sleeve 33 through the hexagonal block 32. The threads on the surface of the threaded sleeve 33 engage, reinforcing the stability of the fiber optic connector 2. This ensures that the optical fibers maintain a good connection under the influence of environmental factors such as vibration and external force, guaranteeing stable transmission of optical signals. The hexagonal block 32 and the circular connector 31 fixed on the surface of the fiber optic connector 2 are adjacent to the side of the connector 34. The thickened ring 37 on the surface of the connector 34 is movably connected to the ball 38. The surface of the ball 38 can contact the inner wall of the circular connector 31. The limiting ring 36 on the surface of the connector 34 can also move flexibly inside the receiving cavity 35 of the fiber optic connector 2. Therefore, after the hexagonal block 32 and the threaded sleeve 33 are rotated, the hexagonal block 32 and the threaded sleeve 33 still have a certain space for displacement stroke, so that the user can increase the contact area of ​​the threads on the surface of the threaded sleeve 33, further ensuring the stability of the fiber optic connector 2 after connection.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A security gate control device, characterized in that, include: The controller body (1) has an optical fiber connector (2) on its side. The interface of the optical fiber connector (2) is provided with a splicing mechanism (3). The splicing mechanism (3) includes a circular connector (31) fixedly installed on the surface of the optical fiber connector (2). The internal part of the circular connector (31) is movably connected to a connector (34). The connector (34) has a hexagonal block (32) fixedly installed through the side of the circular connector (31). A threaded sleeve (33) is fixedly installed on the side of the hexagonal block (32). The end face of the threaded sleeve (33) has a chamfered end (39), and the inside of the threaded sleeve (33) is provided with a cavity for accommodating the end of the optical fiber connector (2).

2. The security gate control device according to claim 1, characterized in that, The circular connector (31) has an internal cavity (35) and an annular hole with the same size as the connector (34) for passing through the connector (34) on its side.

3. A security gate control device according to claim 2, characterized in that, The outer surface of the connector (34) is fixedly fitted with a limiting ring (36) and a thickening ring (37), both of which are located inside the receiving cavity (35).

4. A security gate control device according to claim 3, characterized in that, The thickened ring (37) is rotatably connected to a ball (38), and the outer surface of the ball (38) can make contact with the inner wall of the receiving cavity (35).

5. A security gate control device according to claim 1, characterized in that, The center of the hexagonal block (32) has a through hole for the fiber core of the optical fiber connector (2) to pass through.

6. A security gate control device according to claim 1, characterized in that, The axis of the threaded sleeve (33) coincides with the axis of the fiber optic connector (2), and a gap is provided between the inner surface of the threaded sleeve (33) and the outer surface of the fiber optic connector (2).

7. A security gate control device according to claim 1, characterized in that, The hexagonal block (32), the circular connector (31), and the threaded sleeve (33) are all made of low-alloy wear-resistant steel.

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