Entrance guard fisheye lens with adjusting function

By designing the reversing wheel, motor drive system and swing arm structure in the access control fisheye lens, the horizontal and vertical adjustment of the lens is achieved, solving the problem of limited observation range of the existing access control lens, and significantly improving the observation range and practicality.

CN222582488UActive Publication Date: 2025-03-07HUAQIN XINGYUAN (GUANGDONG) TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421238113.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-03-07
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

The existing access control lens cannot be adjusted in the left and right directions, resulting in limited observation range and cannot meet the observation needs of a wider area.

Method used

An access fisheye lens with adjustment function is designed, and the horizontal and vertical adjustment of the lens is achieved by setting a reversing wheel, motor, driving wheel, driven wheel, rotating column and swing arm. The motor drive system drives the swing arm and the rotating column to rotate in a swing arm type, and the motor two rotates vertically through the worm and worm gear drive installation box.

Benefits of technology

The lens is rotated simultaneously in the horizontal and vertical directions, which greatly improves the observation range of the lens, allowing comprehensive observation of the left and right and upper and lower surrounding environments, and improves practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of access control fisheye lenses, and particularly relates to an access control fisheye lens with an adjusting function, which comprises a mounting plate, the mounting plate is of a square structure, and a mounting box is rotatably mounted in the mounting plate; by arranging a reversing disc, a first motor, a driving wheel, a driven wheel, a rotating column, a swing arm and the like, driving is conducted through the first motor, so that the rotating column drives the swing arm to conduct swing arm type rotation on the upper surface of the reversing disc, a lens rotates transversely, and the lens can observe the surrounding environment on the left side and the right side of the lens; a second motor is used for driving, a worm, a worm gear and the like are used for rotating, so that a mounting box can rotate in a mounting plate, a lens can also rotate in the vertical direction, the lens can observe the surrounding environment on the upper side and the lower side of the lens, and the lens in the device can synchronously rotate in the transverse direction and the longitudinal direction; therefore, the observation range of the lens is greatly improved, and the practicability is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of access control fisheye lenses, and in particular relates to an access control fisheye lens with an adjustment function. Background Art

[0002] The access control lens is an important part of the access control system. It is an optical device used to capture images at the door. The quality of the access control lens directly determines the working efficiency of the access control system. Existing access control lenses are often fixedly connected to the installation panel and cannot be freely adjusted.

[0003] For example, the Chinese patent with the publication number CN214576650U discloses an intelligent access control lens. In view of the problem that the angle of the existing access control lens is not easy to adjust, and the display screen is inconvenient to disassemble and assemble, and cannot meet the needs of use, the following solution is proposed, which includes a display screen, the front side of the display screen is provided with an access control lens, and the bottom of the display screen is provided with a mounting plate, the top of the mounting plate is fixedly connected with a horizontal plate, and the top two sides of the horizontal plate are fixedly connected with vertical plates, and the sides of the two vertical plates close to each other are provided with external shaft holes, and the external shafts are rotatably installed in the external shaft holes, and the ends of the two external shafts close to each other are fixedly connected with the same frame, and the two sides of the display screen are respectively in contact with the inner walls of the two sides of the frame, and the two sides of the display screen are fixedly connected with embedded plates. The utility model has good practicality, is convenient for adjusting the angle of the access control lens, and is convenient for disassembling and assembling the display screen, meeting the needs of use.

[0004] This patent has some disadvantages when used, such as: the lens in this patent can only adjust the viewing angle of the lens in the longitudinal direction, and cannot make the lens swing left and right, so that the lens can observe a wider area, and the overall adjustment effect is relatively simple. In view of this, we propose a door access control fisheye lens with adjustment function. Utility Model Content

[0005] The purpose of the utility model is to provide a door access control fisheye lens with an adjustment function to solve the problems raised in the above background technology.

[0006] In view of this, the utility model provides a door access control fisheye lens with an adjustment function, comprising:

[0007] A mounting plate, the mounting plate is in a square shape, a mounting box is rotatably mounted in the mounting plate, a reversing disc is fixed in the inner cavity of the mounting box, a rotating column is rotatably mounted on the upper surface of the reversing disc, and an inverted L-shaped swing arm is fixed on the front side of the rotating column;

[0008] A guide groove, wherein the guide groove is provided on the upper surface of the reversing disk, a protrusion matching the guide groove is provided at the bottom end of the swing arm, the swing arm is slidably connected to the guide groove, a fixing column is fixed to the front side wall of the swing arm, a fixing plate is provided on the upper surface of the swing arm and the fixing column, clamps are symmetrically fixed on the upper surface of the fixing plate, and lenses are clamped and installed on the two clamps;

[0009] A fixing assembly, the fixing assembly is located in the fixing column and is used to fix the fixing plate to the fixing column;

[0010] A connecting shaft, the connecting shaft is coaxially mounted on the bottom end of the rotating column, the bottom end of the connecting shaft is coaxially connected to a driven wheel, the peripheral side of the driven wheel is meshingly connected to a driving wheel, a motor 1 is mounted on the lower surface of the reversing disc, and the output shaft of the motor 1 is coaxially connected to the driving wheel;

[0011] A driving assembly is located in the mounting plate and is used to control the mounting box to rotate vertically in the frame of the mounting plate.

[0012] In the above technical solution, further, the driving component includes:

[0013] A rectangular groove is provided in the mounting plate, a worm wheel is rotatably mounted in the rectangular groove, a worm is meshingly connected to the circumference of the worm wheel, the bottom end of the worm is coaxially connected to a bearing seat fixed to the bottom surface of the rectangular groove, the top end of the worm is coaxially connected to a connecting rod, and the top end of the connecting rod passes through the inner top surface of the rectangular groove and extends upwards, a second motor is mounted on the upper surface of the mounting plate, the output shaft of the second motor is coaxially connected to the connecting rod, rotating shafts are symmetrically fixed on the left and right sides of the mounting box, one of the rotating shafts passes through the inner side wall of the mounting plate and extends into the rectangular groove to be coaxially connected to the worm wheel.

[0014] In the above technical solution, further, a battery is installed on the upper surface of the mounting plate, and the motor 1, the motor 2 and the battery are electrically connected.

[0015] In this technical solution, a storage battery is provided to provide the electric energy requirements for motor 1 and motor 2.

[0016] In the above technical solution, further, the fixing component includes:

[0017] A positioning hole is provided on the upper surface of the swing arm, a positioning column is fixed on the lower surface of the fixing plate at a position corresponding to the positioning hole, and the positioning column is plug-fitted with the positioning hole.

[0018] In the above technical solution, further, the fixing assembly also includes:

[0019] The cam is provided with a plurality of locking plates, the locking plates having the plurality of locking plates being mounted on the support frame and the plurality of locking plates at the support frame.

[0020] In the above technical solution, further, a side wall of the installation box close to the lens is provided with an observation port.

[0021] In this technical solution, by providing an observation port, the lens can observe the external environment.

[0022] The beneficial effects of the utility model are:

[0023] 1. The access control fisheye lens with adjustment function is driven by the motor 1 by setting a reversing disk, a motor 1, a driving wheel, a driven wheel, a rotating column and a swing arm, so that the rotating column drives the swing arm to swing on the upper surface of the reversing disk, thereby making the lens rotate horizontally, so that the lens can observe the surrounding environment on the left and right sides of the lens.

[0024] 2. The access control fisheye lens with adjustment function is driven by a second motor by setting a driving component and rotating through a worm and a worm gear, so that the mounting box can rotate in the mounting plate, so that the lens can also rotate vertically, so that the lens can observe the surrounding environment above and below the lens.

[0025] 3. The access control fisheye lens with adjustment function, the lens in the device can be synchronously rotated horizontally and vertically, so that the observation range of the lens is greatly improved, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the driving component in the utility model;

[0028] Figure 3 It is a structural schematic diagram of the internal parts of the installation box in the utility model;

[0029] Figure 4It is a cross-sectional schematic diagram of the commutation disc in the utility model;

[0030] Figure 5 This is an exploded schematic diagram of the lens and the swing arm in the utility model;

[0031] Figure 6 It is a structural schematic diagram of the fixing component in the utility model.

[0032] The symbols in the figure are:

[0033] 1. Mounting plate; 2. Mounting box; 3. Reversing plate; 4. Rotating shaft; 5. Rotating column; 6. Swing arm; 7. Guide groove; 8. Fixed column; 9. Fixed plate; 10. Clamp; 11. Lens; 12. Connecting shaft; 13. Driven wheel; 14. Driving wheel; 15. Motor 1; 16. Rectangular groove; 17. Worm gear; 18. Worm; 19. Bearing seat; 20. Connecting rod; 21. Motor 2; 22. Battery; 23. Positioning hole; 24. Positioning column; 25. Slot; 26. Fixed rod; 27. Limiting hole; 28. Slide groove; 29. ​​Sliding plate; 30. Spring; 31. Pull rod. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0035] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0037] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words 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, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0038] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0039] Embodiment 1:

[0040] See also Figure 1 - Figure 6 As shown, this embodiment provides a door access control fisheye lens with an adjustment function, including:

[0041] The mounting plate 1 is in a square shape, and a mounting box 2 is rotatably mounted in the mounting plate 1. A reversing disc 3 is fixed in the inner cavity of the mounting box 2. A rotating column 5 is rotatably mounted on the upper surface of the reversing disc 3. An inverted L-shaped swing arm 6 is fixed to the front side of the rotating column 5.

[0042] A guide groove 7 is provided on the upper surface of the reversing plate 3. A protrusion matching the guide groove 7 is provided at the bottom end of the swing arm 6. The swing arm 6 is slidably connected to the guide groove 7. A fixing column 8 is fixed to the front side wall of the swing arm 6. A fixing plate 9 is provided on the upper surface of the swing arm 6 and the fixing column 8. Clamps 10 are symmetrically fixed on the upper surface of the fixing plate 9. Lenses 11 are clamped and installed on the two clamps 10.

[0043] A fixing assembly, which is located in the fixing column 8 and is used to fix the fixing plate 9 to the fixing column 8;

[0044] A connecting shaft 12 is coaxially mounted on the bottom end of the rotating column 5. The bottom end of the connecting shaft 12 is coaxially connected to a driven wheel 13. The peripheral side of the driven wheel 13 is meshedly connected to a driving wheel 14. A motor 15 is mounted on the lower surface of the reversing disc 3, and the output shaft of the motor 15 is coaxially connected to the driving wheel 14.

[0045] A driving assembly, which is located inside the mounting plate 1 and is used to control the mounting box 2 to rotate vertically inside the frame of the mounting plate 1;

[0046] In this embodiment, the driving component includes:

[0047] A rectangular groove 16 is provided in the mounting plate 1. A worm wheel 17 is rotatably mounted in the rectangular groove 16. A worm 18 is meshedly connected to the circumference of the worm wheel 17. The bottom end of the worm 18 is coaxially connected to a bearing seat 19 fixed to the inner bottom surface of the rectangular groove 16. A connecting rod 20 is coaxially connected to the top of the worm 18. The top of the connecting rod 20 passes through the inner top surface of the rectangular groove 16 and extends upward. A motor 21 is mounted on the upper surface of the mounting plate 1. The output shaft of the motor 21 is coaxially connected to the connecting rod 20. Rotating shafts 4 are symmetrically fixed on the left and right sides of the mounting box 2. One of the rotating shafts 4 passes through the inner side wall of the mounting plate 1 and extends into the rectangular groove 16 to be coaxially connected to the worm wheel 17.

[0048] In this embodiment, the fixing assembly includes:

[0049] A positioning hole 23 is provided on the upper surface of the swing arm 6. A positioning column 24 is fixed on the lower surface of the fixing plate 9 at a position corresponding to the positioning hole 23. The positioning column 24 is plugged into and matched with the positioning hole 23.

[0050] In this embodiment, the fixing component further includes:

[0051] A slot 25 is provided on the upper surface of the fixed column 8, and a fixing rod 26 is fixed on the lower surface of the fixing plate 9 at a position corresponding to the slot 25. A limiting hole 27 is provided on the fixing rod 26. A sliding groove 28 is provided in the fixing column 8 and on the peripheral side of the slot 25. A sliding plate 29 is slidably installed in the sliding groove 28. A limiting rod is fixed on the side of the sliding plate 29 close to the slot 25, and one end of the limiting rod passes through the sliding groove 28 and extends into the slot 25 to be plugged and matched with the limiting hole 27. A spring 30 is provided on the side of the sliding plate 29 away from the slot 25, and the two ends of the spring 30 are respectively fixed to the surface wall of the sliding plate 29 and the inner wall of the sliding groove 28. A pull rod 31 is provided on the peripheral side of the fixing column 8, and an anti-slip knob is provided at one end of the pull rod 31. The other end of the pull rod 31 passes through the outer wall of the fixing column 8 and extends into the sliding groove 28 to be fixed to the sliding plate 29, and the pull rod 31 is plugged and matched with the spring 30.

[0052] Among them, the working principle of this device is as follows:

[0053] When the lens 11 needs to move horizontally, the motor 15 is started, the output shaft of the motor 15 rotates and drives the driving wheel 14 to rotate, the driving wheel 14 drives the driven wheel 13 to rotate, the driven wheel 13 drives the connecting shaft 12 to rotate, the connecting shaft 12 drives the rotating column 5 to rotate, the rotating column 5 drives the swing arm 6 to swing, so that the swing arm 6 can rotate along the track of the guide groove 7, when the swing arm 6 rotates, the fixed plate 9 and the lens 11 located above the swing arm 6 will also rotate accordingly, so as to adjust the horizontal viewing angle of the lens 11;

[0054] When the lens 11 needs to move vertically, the motor 21 is started, the output shaft of the motor 21 rotates and drives the connecting rod 20 to rotate, the connecting rod 20 drives the worm 18 to rotate, the worm 18 drives the worm wheel 17 to rotate, the worm wheel 17 drives the installation box 2 to rotate through the rotating shaft 4, and the lens 11 located in the installation box 2 will also rotate with the installation box 2, so as to adjust the vertical viewing angle of the lens 11;

[0055] It is worth adding that the installation box 2 in the present application is divided into a front half and a rear half, and the front half and the rear half are fixedly connected by bolts. When the lens 11 needs to be disassembled, the installation box 2 is first opened to expose the lens 11 to the outside. At this time, the lens 11 can be removed from the two clamps 10. When the two clamps 10 on the fixing plate 9 need to be replaced and maintained, the fixing assembly is started, and the operator pulls the pull rod 31 outward. The pull rod 31 drives the sliding plate 29 to slide outward in the sliding groove 28 and squeezes the spring 30. When the sliding plate When the limiting rod on the other side of 29 is disengaged from the limiting hole 27, the limiting rod no longer constrains the fixing rod 26. At this time, the fixing plate 9 can be removed from the upper surface of the swing arm 6 and the fixing column 8 by pulling upward. During installation, similarly, the positioning column 24 and the fixing rod 26 are aligned with the positioning hole 23 and the slot 25 respectively. When the fixing rod 26 is fully in place, the operator releases the hand pulling the pull rod 31. At this time, under the elastic action of the spring 30, the sliding plate 29 and the limiting rod are pushed into the slot 25 and constrained with the limiting hole 27 again.

[0056] By setting the reversing disk 3, motor 15, driving wheel 14, driven wheel 13, rotating column 5 and swing arm 6, etc., and driving by motor 15, the rotating column 5 drives the swing arm 6 to swing on the upper surface of the reversing disk 3, so that the lens 11 is rotated horizontally, so that the lens 11 can observe the surrounding environment on the left and right sides of the lens 11; by setting the driving component, using motor 21 for driving, and rotating by worm 18 and worm wheel 17, etc., the mounting box 2 can be rotated in the mounting plate 1, so that the lens 11 can also be rotated vertically, so that the lens 11 can observe the surrounding environment on the upper and lower sides of the lens 11. The lens 11 in the device can be rotated synchronously in the horizontal and vertical directions, so that the observation range of the lens 11 is greatly improved, thereby improving the practicality.

[0057] Embodiment 2:

[0058] This embodiment provides an access control fisheye lens with an adjustment function. In addition to the technical solutions of the above embodiments, it also has the following technical features: a battery 22 is installed on the upper surface of the mounting plate 1, and the motor 1 15, the motor 2 21 and the battery 22 are electrically connected.

[0059] The storage battery 22 is provided to provide the electric energy requirements for the motor 1 15 and the motor 2 21 .

[0060] Embodiment 3:

[0061] This embodiment provides a fisheye lens for access control with an adjustment function. In addition to the technical solutions of the above embodiments, it also has the following technical features: an observation port is provided on a side wall of the installation box 2 close to the lens 11.

[0062] The observation port is provided so that the lens 11 can observe the external environment.

[0063] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fisheye lens for access control with adjustment function, characterized in that: include: A mounting plate (1), the mounting plate (1) being of a U-shaped structure, a mounting box (2) being rotatably mounted inside the mounting plate (1), a reversing disc (3) being fixed in the inner cavity of the mounting box (2), a rotating column (5) being rotatably mounted on the upper surface of the reversing disc (3), and an inverted L-shaped swing arm (6) being fixed on the front side of the rotating column (5); A guide groove (7), wherein the guide groove (7) is formed on the upper surface of the reversing disk (3); a protrusion matching the guide groove (7) is provided at the bottom end of the swing arm (6); the swing arm (6) is slidably connected to the guide groove (7); a fixing column (8) is fixed to the front side wall of the swing arm (6); a fixing plate (9) is provided on the upper surfaces of the swing arm (6) and the fixing column (8); clamps (10) are symmetrically fixed to the upper surface of the fixing plate (9); and lenses (11) are clamped and mounted on the two clamps (10); A fixing assembly, the fixing assembly being located in the fixing column (8) and being used to fix the fixing plate (9) to the fixing column (8); A connecting shaft (12), the connecting shaft (12) is coaxially mounted on the bottom end of the rotating column (5), the bottom end of the connecting shaft (12) is coaxially connected to a driven wheel (13), the peripheral side of the driven wheel (13) is meshingly connected to a driving wheel (14), a motor (15) is mounted on the lower surface of the commutation disc (3), and the output shaft of the motor (15) is coaxially connected to the driving wheel (14); A driving assembly is located inside the mounting plate (1) and is used to control the mounting box (2) to rotate vertically inside the frame of the mounting plate (1).

2. The access control fisheye lens with adjustment function according to claim 1, characterized in that: The drive assembly comprises: A rectangular groove (16), wherein the rectangular groove (16) is provided in the mounting plate (1), a worm wheel (17) is rotatably mounted in the rectangular groove (16), a worm (18) is meshingly connected to the circumferential side of the worm wheel (17), the bottom end of the worm (18) is coaxially connected to a bearing seat (19) fixed to the inner bottom surface of the rectangular groove (16), the top end of the worm (18) is coaxially connected to a connecting rod (20), and the top end of the connecting rod (20) passes through the inner top surface of the rectangular groove (16) and extends upward, a second motor (21) is mounted on the upper surface of the mounting plate (1), the output shaft of the second motor (21) is coaxially connected to the connecting rod (20), and rotating shafts (4) are symmetrically fixed on the left and right sides of the mounting box (2), one of the rotating shafts (4) passes through the inner side wall of the mounting plate (1) and extends into the rectangular groove (16) to be coaxially connected to the worm wheel (17).

3. The access control fisheye lens with adjustment function according to claim 2, characterized in that: A storage battery (22) is mounted on the upper surface of the mounting plate (1), and the motor 1 (15), the motor 2 (21) and the storage battery (22) are electrically connected.

4. The access control fisheye lens with adjustment function according to claim 1, characterized in that: The fixing assembly comprises: A positioning hole (23) is provided on the upper surface of the swing arm (6); a positioning column (24) is fixed on the lower surface of the fixing plate (9) at a position corresponding to the positioning hole (23); the positioning column (24) is plug-fitted with the positioning hole (23).

5. The access control fisheye lens with adjustment function according to claim 4, characterized in that: The fixing assembly also includes: A slot (25) is provided on the upper surface of the fixing column (8), a fixing rod (26) is fixed on the lower surface of the fixing plate (9) at a position corresponding to the slot (25), a limiting hole (27) is provided on the fixing rod (26), a sliding groove (28) is provided in the fixing column (8) and on the peripheral side of the slot (25), a sliding plate (29) is slidably installed in the sliding groove (28), a limiting rod is fixed on a side of the sliding plate (29) close to the slot (25), and one end of the limiting rod passes through the sliding groove (28) and extends to the slot (2 5) and is plugged into and matched with the limiting hole (27), a spring (30) is arranged on the side of the sliding plate (29) away from the slot (25), and the two ends of the spring (30) are respectively fixed to the surface wall of the sliding plate (29) and the inner wall of the slide groove (28), a pull rod (31) is arranged on the peripheral side of the fixed column (8), one end of the pull rod (31) is provided with an anti-slip knob, the other end of the pull rod (31) passes through the outer wall of the fixed column (8) and extends into the slide groove (28) to be fixed to the sliding plate (29), and the pull rod (31) is plugged into and matched with the spring (30).

6. The access control fisheye lens with adjustment function according to claim 1, characterized in that: A viewing port is provided on a side wall of the installation box (2) close to the lens (11).

Citation Information

Patent Citations

  • Intelligent access control lens

    CN214576650U