Access control monitoring equipment for security and protection of Internet of Things

Abstract

The invention relates to the technical field of access monitoring, in particular to access monitoring equipment for security and protection of the Internet of Things, which comprises a mounting seat, a monitoring head is arranged below the mounting seat, a connecting frame is mounted below the mounting seat, a pairing frame is mounted on the side of the monitoring head, L-shaped supporting frames are arranged on two sides of the pairing frame, and the L-shaped supporting frames are connected with the connecting frame. The side, away from the pairing frame, of the L-shaped supporting frame is installed on the side of the connecting frame, the pairing frame, the connecting frame and the monitoring head are integrally designed, and the pairing frame is rotationally arranged at the end of the L-shaped supporting frame. The monitoring head and the pairing frame are integrally designed, and the pairing frame is rotationally arranged at the end part of the L-shaped supporting frame, so that the pairing frame and the monitoring head can rotate at the end part of the L-shaped supporting frame by a certain amplitude, namely, the monitoring head can rotate within a certain range, the monitoring range of the monitoring head is expanded, and the application range of the monitoring head is expanded.

Description

Technical Field

[0001] This invention relates to the field of access control and monitoring technology, specifically to an access control and monitoring device for Internet of Things (IoT) security. Background Technology

[0002] Security can be understood as an abbreviation of "safety precautions". According to the definition in the modern Chinese dictionary, safety means no danger, no harm, and no accidents; precautions mean to guard against and be on guard. Guarding against means to prepare for an attack or avoid being harmed, and being on guard means to guard against and protect. Combining the above explanations, security precautions can be defined as follows: to prepare and protect in order to deal with an attack or avoid being harmed, so that the protected object is in a safe state of no danger, no harm, and no accidents.

[0003] Existing technologies also propose solutions for access control and monitoring equipment. For example, a Chinese patent with publication number CN209619880U discloses an IoT-based smart access control management device, which includes a monitoring device, an access control device, a deceleration device, and a central control console. The monitoring device, access control device, and deceleration device are connected to the central control console via the Internet of Things. The central control console receives information from each device and controls each device. This device is easy to use, effectively manages vehicles in the community without affecting people's normal travel, and can also protect vehicle driving safety.

[0004] While the above-mentioned technical solutions can effectively manage vehicles within the community without affecting people's normal travel, there are still other problems in actual use. For example, traditional access control and monitoring equipment is installed at a fixed angle, which makes it difficult to adjust the angle, leading to a decrease in facial recognition rate and affecting the normal use of the access control and monitoring equipment.

[0005] Therefore, it is necessary to provide an IoT security access control and monitoring device to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present invention, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] The technical solution adopted by this invention to solve its technical problem is: an access control monitoring device for Internet of Things security, including a mounting base, a monitoring head disposed below the mounting base, a connecting frame disposed below the mounting base, a pairing frame disposed on the side of the monitoring head, and L-shaped support frames disposed on both sides of the pairing frame. The side of the L-shaped support frame away from the pairing frame is disposed on the side of the connecting frame. The pairing frame, the connecting frame, and the monitoring head are integrated into one piece. The pairing frame is rotatably disposed at the end of the L-shaped support frame. It should be noted that a threaded groove is provided on the top of the mounting base, which can be installed in a suitable access control monitoring position by means of external studs. Since the monitoring head and the pairing frame are integrated into one piece, and the pairing frame is rotatably disposed at the end of the L-shaped support frame, the pairing frame and the monitoring head can rotate to a certain extent at the end of the L-shaped support frame, that is, the monitoring head can rotate within a certain range, thereby increasing the monitoring range of the monitoring head and improving the applicability of the monitoring head itself.

[0008] Furthermore, each of the two L-shaped support frames has a rotating horizontal shaft rotatably mounted at its end. A slot is provided on the side of the pairing frame, and the rotating horizontal shaft is installed inside the slot. An adjustment unit is provided on the outside of the rotating horizontal shaft. The adjustment unit is used to adjust the monitoring angle of the pairing frame and the monitoring head. During operation, when the monitoring head detects an outsider and further angle adjustment is needed, the adjustment unit drives the rotating horizontal shaft to rotate, causing the rotating horizontal shafts on both sides to rotate the pairing frame up and down. This, in turn, causes the pairing frame to rotate the monitoring head up and down until the monitoring head can clearly observe the outsider's face. In other words, the monitoring head can automatically adjust its angle based on the outsider's face, solving the problem of decreased facial recognition rate caused by tilted installation in traditional fixed-angle devices.

[0009] Furthermore, the adjustment unit includes a connecting gear, which is fixedly installed on the outer circumferential surface of the rotating horizontal shaft. A ratchet frame is slidably arranged inside the connecting frame. The ratchet frame consists of two sets of ratchet plates, and each set of ratchet plates is meshed with the connecting gear. During operation, when the adjustment unit starts working, it controls the ratchet frame to move up and down. During the up and down movement, the ratchet frame engages with the meshing connecting gear and drives the connecting gear to rotate at a certain angle. That is, the connecting gear drives the rotating horizontal shaft to rotate, thus enabling the up and down angle adjustment function of the pairing frame and the monitoring head.

[0010] Furthermore, the adjustment unit also includes an electric telescopic rod, which is disposed inside the connecting frame. A support frame is fixedly installed at the telescopic end of the electric telescopic rod, and the support frame is connected to the lower part of the ratchet frame. A limiting frame adapted to the support frame is provided inside the connecting frame. During operation, by controlling the movement of the telescopic end of the electric telescopic rod, the telescopic end of the electric telescopic rod drives the support frame to move. The support frame drives the ratchet frame to move up and down, so the ratchet frame drives the connecting gear meshing with it to rotate, thus achieving the adjustment effect of the monitoring head.

[0011] Furthermore, a counterweight frame is installed below the mounting base, and a rotating disk is rotatably mounted above the counterweight frame. The lower end of the rotating disk is connected to the output end of an external drive motor. The upper part of the rotating disk is connected to a connecting frame via a bracket. A heat dissipation unit is provided above the ratchet frame to dissipate heat from the monitoring head itself. During operation, when further adjustment of the monitoring head is required, the external drive motor is controlled to rotate the rotating disk. The rotating disk then drives the connecting frame to rotate via the bracket. Since the connecting frame and the pairing frame are integrated, the connecting frame will drive the pairing frame and the monitoring head to rotate in the left and right directions. That is, the access control monitoring device in this embodiment can be adjusted vertically and horizontally, facilitating facial recognition and improving its versatility.

[0012] Furthermore, the heat dissipation unit includes a wedge block installed above the ratchet frame. A fixed frame is installed inside the connecting frame, and a spiral shaft is slidably arranged inside the fixed frame. A pressure rod is provided at the end of the spiral shaft, and the end of the pressure rod contacts the inclined surface of the wedge block. A heat dissipation fan is rotatably arranged on the outside of the fixed frame, and a limit unit is provided inside the fixed frame to control the rotation of the spiral shaft. During operation, when the ratchet frame moves up and down, it will simultaneously drive the wedge block above it to move up and down. Since the end of the pressure rod contacts the inclined surface of the wedge block, the heat dissipation fan will rotate to a certain extent under the pressure of the wedge block and the action of the limit unit. Therefore, the heat dissipation fan will generate wind during rotation and blow away the heat inside the monitoring equipment, further ensuring that the internal temperature environment is maintained.

[0013] Furthermore, a limiting ring frame is installed on the surface of the fixed frame, and an annular plate is fixedly installed on the outer side of the cooling fan. The side of the annular plate away from the cooling fan extends into the limiting ring frame. An annular groove adapted to the annular plate is opened inside the limiting ring frame. During operation, when the cooling fan rotates, it will simultaneously drive the annular plate on its outer side to rotate. The annular plate will rotate inside the limiting ring frame. Therefore, under the limiting ring frame's restriction of the annular plate, the stability of the cooling fan during rotation can be ensured, and the service life of the monitoring equipment's own parts can be improved.

[0014] Furthermore, a limiting annular groove is formed on the outer circumferential surface of the spiral shaft, and a limiting ball is installed on the inner wall of the cooling fan. The limiting ball is located inside the limiting annular groove. During operation, as shown in the attached figure, when the ratchet frame drives the wedge block above it to move upward, the inclined surface of the wedge block will squeeze the end of the pressure rod, causing the pressure rod to drive the spiral shaft to move. Since a limiting annular groove is formed on the outer side of the spiral shaft, and the limiting ball is located inside the limiting annular groove, the cooling fan will rotate to a certain extent during the movement of the spiral shaft under the mutual limiting of the limiting ball and the limiting annular groove, thus generating a certain amount of airflow and blowing heat away from the inside of the monitoring equipment.

[0015] Furthermore, a limiting spring is installed at the end of the spiral shaft, and the side of the limiting spring away from the spiral shaft is installed inside the fixed frame. During operation, when the spiral shaft moves along the inclined surface of the wedge block, the spiral shaft will simultaneously squeeze the limiting spring at its end. When the wedge block moves downward, that is, when the pressure rod is no longer under pressure, the spiral shaft will quickly recover under the elastic force of the limiting spring, thereby further driving the cooling fan to rotate quickly. The operation is relatively convenient and suitable for rainy environments.

[0016] Furthermore, the wedge block has a groove on its side that matches the pressure rod; this facilitates the wedge block's compression of the end of the pressure rod.

[0017] The beneficial effects of this invention are: The access control and monitoring device for Internet of Things security provided by this invention drives the pairing frame to rotate up and down through the rotating horizontal shafts on both sides, thereby driving the monitoring head to rotate up and down until the monitoring head can clearly observe the face of the visitor. That is, the monitoring head can automatically adjust the angle according to the face of the visitor, solving the problem of decreased face recognition rate caused by the installation tilt of traditional fixed-angle devices.

[0018] When the ratchet moves up and down, it simultaneously drives the wedge block above it to move up and down. Since the end of the pressure rod is in contact with the inclined surface of the wedge block, the cooling fan will rotate to a certain extent under the pressure of the wedge block and the action of the limiting unit. Therefore, the cooling fan will generate wind during the rotation and blow away the heat inside the monitoring equipment, further ensuring that the inside maintains a normal temperature environment.

[0019] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the connecting frame structure in this invention; Figure 3 This is a schematic diagram of the support frame structure in this invention; Figure 4 This is a schematic diagram of the wedge-shaped block structure in this invention; Figure 5 This is a schematic diagram of the ratchet frame structure in this invention; Figure 6 This is a schematic diagram of the helical shaft portion of the present invention; Figure 7 This is a schematic diagram of the annular plate portion of the present invention; Figure 8 This is a schematic diagram of the limiting ring groove structure in this invention.

[0021] The following are the labeling elements in the figure: 1. Mounting base; 2. Monitoring head; 201. Pairing frame; 3. Connecting frame; 4. L-shaped support frame; 5. Rotating horizontal axis; 6. Connecting gear; 7. Ratchet frame; 8. Electric telescopic rod; 9. Support frame; 10. Counterweight frame; 11. Rotating disk; 12. Wedge block; 13. Fixing frame; 131. Spiral shaft; 14. Pressure rod; 15. Cooling fan; 16. Limiting ring frame; 17. Annular plate; 18. Limiting ring groove; 19. Limiting ball; 20. Limiting spring Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] like Figures 1 to 8As shown, the present invention provides an access control monitoring device for Internet of Things security, including a mounting base 1, a monitoring head 2 disposed below the mounting base 1, a connecting frame 3 disposed below the mounting base 1, a pairing frame 201 disposed on the side of the monitoring head 2, and L-shaped support frames 4 disposed on both sides of the pairing frame 201. The side of the L-shaped support frame 4 away from the pairing frame 201 is disposed on the side of the connecting frame 3. The pairing frame 201, the connecting frame 3 and the monitoring head 2 are designed as an integral unit, and the pairing frame 201 is rotatably disposed at the end of the L-shaped support frame 4. It should be noted that a threaded groove is provided on the top of the mounting base 1, and the monitoring equipment in this embodiment can be installed in a suitable access control monitoring position by using external studs. Since the monitoring head 2 and the pairing frame 201 are designed as an integral unit, and the pairing frame 201 is rotatably mounted at the end of the L-shaped support frame 4, the pairing frame 201 and the monitoring head 2 can rotate to a certain extent at the end of the L-shaped support frame 4. That is, the monitoring head 2 can rotate within a certain range, thereby increasing the monitoring range of the monitoring head 2 and improving the applicability of the monitoring head 2 itself.

[0025] Both ends of the two L-shaped support frames 4 are rotatably equipped with a horizontal rotating shaft 5. The side of the pairing frame 201 is provided with a slot, and the horizontal rotating shaft 5 is installed inside the slot. An adjustment unit is provided on the outside of the horizontal rotating shaft 5. The adjustment unit is used to adjust the monitoring angle of the pairing frame 201 and the monitoring head 2. During operation, when the monitoring head 2 detects an outsider and further angle adjustment of the monitoring head 2 is required, the adjustment unit drives the horizontal rotating shaft 5 to rotate, so that the horizontal rotating shafts 5 on both sides drive the pairing frame 201 to rotate up and down. Thus, the pairing frame 201 drives the monitoring head 2 to rotate up and down until the monitoring head 2 can clearly observe the face of the outsider. That is, the monitoring head 2 can automatically adjust the angle according to the face of the outsider, solving the problem of decreased face recognition rate caused by the installation tilt of traditional fixed-angle equipment.

[0026] The adjustment unit includes a connecting gear 6, which is fixedly installed on the outer circumferential surface of the rotating horizontal shaft 5. A ratchet frame 7 is slidably arranged inside the connecting frame 3. The ratchet frame 7 consists of two sets of ratchet plates, and each set of ratchet plates is meshed with the connecting gear 6. During operation, when the adjustment unit starts working, it controls the ratchet frame 7 to move up and down. During the up and down movement, the ratchet frame 7 engages with the meshing connecting gear 6 and drives the connecting gear 6 to rotate at a certain angle. That is, the connecting gear 6 drives the rotating horizontal shaft 5 to rotate, thus enabling the up and down angle adjustment function of the pairing frame 201 and the monitoring head 2.

[0027] The adjustment unit also includes an electric telescopic rod 8, which is located inside the connecting frame 3. A support frame 9 is fixedly installed at the telescopic end of the electric telescopic rod 8. The support frame 9 is connected to the lower part of the ratchet frame 7. The connecting frame 3 has a limiting frame adapted to the support frame 9 inside. During operation, by controlling the telescopic end of the electric telescopic rod 8 to move, the telescopic end of the electric telescopic rod 8 drives the support frame 9 to move. The support frame 9 drives the ratchet frame 7 to move up and down. Therefore, the ratchet frame 7 drives the connecting gear 6 that meshes with it to rotate, thus achieving the adjustment effect of the monitoring head 2.

[0028] A counterweight frame 10 is installed below the mounting base 1, and a rotating disk 11 is rotatably mounted above the counterweight frame 10. The lower end of the rotating disk 11 is connected to the output end of an external drive motor. The upper part of the rotating disk 11 is connected to the connecting frame 3 via a bracket. A heat dissipation unit is provided above the ratchet frame 7 to dissipate the heat of the monitoring head 2 itself. During operation, when further adjustment of the monitoring head 2 is required, the external drive motor is controlled to drive the rotating disk 11 to rotate. The rotating disk 11 will drive the connecting frame 3 to rotate via the bracket. Since the connecting frame 3 and the pairing frame 201 are integrated, the connecting frame 3 will drive the pairing frame 201 and the monitoring head 2 to rotate in the left and right directions. That is, the access control monitoring device in this embodiment of the invention can be adjusted up and down as well as left and right, which facilitates face recognition and improves its applicability in many aspects.

[0029] The heat dissipation unit includes a wedge block 12 installed above the ratchet frame 7. A fixed frame 13 is installed inside the connecting frame 3. A spiral shaft 131 is slidably arranged inside the fixed frame 13. A pressure rod 14 is provided at the end of the spiral shaft 131. The end of the pressure rod 14 contacts the inclined surface of the wedge block 12. A heat dissipation fan 15 is rotatably arranged on the outside of the fixed frame 13. A limit unit is provided inside the fixed frame 13 to control the rotation of the spiral shaft 131. During operation, when the ratchet frame 7 moves up and down, the ratchet frame 7 will simultaneously drive the wedge block 12 above it to move up and down. Since the end of the pressure rod 14 contacts the inclined surface of the wedge block 12, the heat dissipation fan 15 will rotate to a certain extent under the pressure of the wedge block 12 and the action of the limit unit. Therefore, the heat dissipation fan 15 will generate wind during rotation and blow away the heat inside the monitoring equipment, further ensuring that the inside maintains a normal temperature environment.

[0030] A limiting ring frame 16 is installed on the surface of the fixed frame 13. An annular plate 17 is fixedly installed on the outer side of the cooling fan 15. The side of the annular plate 17 away from the cooling fan 15 extends into the interior of the limiting ring frame 16. An annular groove adapted to the annular plate 17 is opened inside the limiting ring frame 16. During operation, when the cooling fan 15 rotates, it will simultaneously drive the annular plate 17 on its outer side to rotate. The annular plate 17 will rotate inside the limiting ring frame 16. Therefore, under the limiting of the annular plate 17 by the limiting ring frame 16, the stability of the cooling fan 15 during rotation can be ensured, and the service life of the monitoring equipment's own parts can be improved.

[0031] A limiting annular groove 18 is formed on the outer circumferential surface of the spiral shaft 131, and a limiting ball 19 is installed on the inner wall of the cooling fan 15. The limiting ball 19 is located inside the limiting annular groove 18. During operation, refer to the attached diagram. Figure 5 As shown, when the ratchet 7 moves the wedge block 12 above it upward, the inclined surface of the wedge block 12 will squeeze the end of the pressure rod 14, causing the pressure rod 14 to drive the spiral shaft 131 to move. Since the outer side of the spiral shaft 131 has a limiting ring groove 18 and the limiting ball 19 is located inside the limiting ring groove 18, during the movement of the spiral shaft 131, under the mutual limiting of the limiting ball 19 and the limiting ring groove 18, the cooling fan 15 will rotate at a certain amplitude, thus generating a certain wind force and blowing heat inside the monitoring equipment.

[0032] A limiting spring 20 is installed at the end of the spiral shaft 131. The side of the limiting spring 20 away from the spiral shaft 131 is installed inside the fixed frame 13. During operation, when the spiral shaft 131 moves along the inclined surface of the wedge block 12, the spiral shaft 131 will simultaneously squeeze the limiting spring 20 at its end. When the wedge block 12 moves downward, that is, when the pressure rod 14 is no longer under pressure, the spiral shaft 131 will quickly recover under the elastic force of the limiting spring 20, thereby further driving the cooling fan 15 to rotate quickly. The operation is relatively convenient and suitable for rainy weather.

[0033] The wedge block 12 has a groove on its side that matches the pressure rod 14; this facilitates the wedge block 12 pressing the end of the pressure rod 14.

[0034] Working principle: The monitoring head 2 and the pairing frame 201 are designed as a single unit, and the pairing frame 201 is rotatably mounted at the end of the L-shaped support frame 4. Therefore, the pairing frame 201 and the monitoring head 2 can rotate to a certain extent at the end of the L-shaped support frame 4, that is, the monitoring head 2 can rotate within a certain range, thereby increasing the monitoring range of the monitoring head 2 and its own applicability. When the monitoring head 2 detects an outsider and further angle adjustment is required, the adjustment unit drives the rotating horizontal axis 5 to rotate, which in turn drives the pairing frame 201 to rotate up and down. Thus, the pairing frame 201 drives the monitoring head 2 to rotate up and down until the monitoring head 2 can clearly observe the face of the outsider. That is, the monitoring head 2 can automatically adjust its angle according to the face of the outsider, solving the problem of decreased face recognition rate caused by installation tilt of traditional fixed-angle equipment. When the adjustment unit starts working, it controls the ratchet 7 to move up and down. During the up and down movement, the ratchet 7 engages with the connecting gear 6 and drives the connecting gear 6 to rotate at a certain angle. That is, the connecting gear 6 drives the horizontal axis 5 to rotate, thus enabling the up and down angle adjustment of the pairing frame 201 and the monitoring head 2. By controlling the movement of the telescopic end of the electric telescopic rod 8, the telescopic end of the electric telescopic rod 8 drives the support frame 9 to move. The support frame 9 drives the ratchet 7 to move up and down, so the ratchet 7 drives the connecting gear 6 to rotate, thus achieving the adjustment effect of the monitoring head 2. When further adjustment of the monitoring head 2 is required, the external drive motor is controlled to drive the rotating disk 11 to rotate. The rotating disk 11 will drive the connecting frame 3 to rotate through the bracket. Since the connecting frame 3 and the pairing frame 201 are integrated, the connecting frame 3 will drive the pairing frame 201 and the monitoring head 2 to rotate in the left and right directions. That is, the access control monitoring device in this embodiment can be adjusted up and down as well as left and right, which is convenient for facial recognition and improves its applicability in many aspects. When the ratchet frame 7 moves up and down, the ratchet frame 7 will simultaneously drive the wedge block 12 above it to move up and down. Since the end of the pressure rod 14 is in contact with the inclined surface of the wedge block 12, the cooling fan 15 will rotate to a certain extent under the pressure of the wedge block 12 on the pressure rod 14 and under the action of the limiting unit. Therefore, the cooling fan 15 will generate wind during the rotation and blow away the heat inside the monitoring device, further ensuring that its interior maintains a normal temperature environment. As the cooling fan 15 rotates, it simultaneously drives the outer annular plate 17 to rotate. The annular plate 17 rotates within the limiting ring frame 16. Therefore, the limiting ring frame 16 limits the annular plate 17, ensuring the stability of the cooling fan 15 during rotation and improving the service life of the monitoring equipment's components. (Refer to Appendix) Figure 5As shown, when the ratchet 7 moves the wedge block 12 above it upward, the inclined surface of the wedge block 12 will squeeze the end of the pressure rod 14, causing the pressure rod 14 to move the spiral shaft 131. Since the outer side of the spiral shaft 131 has a limiting ring groove 18 and the limiting ball 19 is located inside the limiting ring groove 18, during the movement of the spiral shaft 131, under the mutual limiting of the limiting ball 19 and the limiting ring groove 18, the cooling fan 15 will rotate at a certain amplitude, thus generating a certain wind force and blowing heat inside the monitoring equipment. When the spiral shaft 131 moves along the inclined surface of the wedge block 12, the spiral shaft 131 will simultaneously squeeze the limiting spring 20 at its end. When the wedge block 12 moves downward, that is, when the pressure rod 14 is no longer under pressure, the spiral shaft 131 will quickly recover under the elastic force of the limiting spring 20, which will further drive the cooling fan 15 to rotate quickly. The operation is relatively convenient and suitable for rainy weather.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An Internet of Things (IoT) security access control and monitoring device, characterized in that: The device includes a mounting base, a monitoring head located below the mounting base, a connecting frame located below the mounting base, a pairing frame located to the side of the monitoring head, and L-shaped support frames located on both sides of the pairing frame. The side of the L-shaped support frame furthest from the pairing frame is mounted to the side of the connecting frame. The pairing frame, connecting frame, and monitoring head are designed as a single unit, and the pairing frame is rotatably mounted at the end of the L-shaped support frame.

2. The IoT security access control and monitoring device according to claim 1, characterized in that: Both L-shaped support frames have a rotating horizontal shaft rotatably mounted at their ends. The pairing frame has a slot on its side, and the rotating horizontal shaft is installed inside the slot. An adjustment unit is provided on the outside of the rotating horizontal shaft, and the adjustment unit is used to adjust the monitoring angle of the pairing frame and the monitoring head.

3. The IoT security access control and monitoring device according to claim 2, characterized in that: The adjustment unit includes a connecting gear, which is fixedly installed on the outer circumferential surface of the rotating horizontal shaft. A ratchet frame is slidably arranged inside the connecting frame. The ratchet frame consists of two sets of ratchet plates, and each set of ratchet plates is meshed with the connecting gear.

4. The IoT security access control and monitoring device according to claim 3, characterized in that: The adjustment unit also includes an electric telescopic rod, which is located inside the connecting frame. A support frame is fixedly installed at the telescopic end of the electric telescopic rod. The support frame is connected to the lower part of the ratchet frame. A limiting frame adapted to the support frame is provided inside the connecting frame.

5. The IoT security access control and monitoring device according to claim 4, characterized in that: A counterweight frame is installed below the mounting base, and a rotating disk is rotatably mounted above the counterweight frame. The lower end of the rotating disk is connected to the output end of an external drive motor. The upper part of the rotating disk is connected to a connecting frame via a bracket. A heat dissipation unit is installed above the ratchet frame to dissipate the heat of the monitoring head itself.

6. The IoT security access control and monitoring device according to claim 5, characterized in that: The heat dissipation unit includes a wedge block installed above the ratchet frame. A fixed frame is installed inside the connecting frame. A spiral shaft is slidably arranged inside the fixed frame. A pressure rod is provided at the end of the spiral shaft. The end of the pressure rod contacts the inclined surface of the wedge block. A heat dissipation fan is rotatably arranged on the outside of the fixed frame. A limit unit is provided inside the fixed frame. The limit unit is used to control the rotation of the spiral shaft.

7. The IoT security access control and monitoring device according to claim 6, characterized in that: A limiting ring frame is installed on the surface of the fixed frame, and an annular plate is fixedly installed on the outer side of the cooling fan. The side of the annular plate away from the cooling fan extends into the limiting ring frame, and an annular groove adapted to the annular plate is opened inside the limiting ring frame.

8. The IoT security access control and monitoring device according to claim 7, characterized in that: A limiting annular groove is formed on the outer circumferential surface of the spiral shaft, and a limiting ball is installed on the inner wall of the cooling fan, with the limiting ball located inside the limiting annular groove.

9. The IoT security access control and monitoring device according to claim 8, characterized in that: A limit spring is installed at the end of the spiral shaft, and the side of the limit spring away from the spiral shaft is installed inside the fixed frame.

10. The IoT security access control and monitoring device according to claim 7, characterized in that: The wedge-shaped block has a groove on its side that is adapted to the pressure rod.

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