A security surveillance camera with zoom capability

Abstract

The present invention belongs to the field of aluminum alloy processing technology, and in particular, is a security monitoring camera with variable focus. In view of the problem that current monitoring cameras cannot be provided with multiple lenses and can freely match lenses to achieve zoom according to the distance of framing, the following solution is proposed, including a main shell, an inner shell is slidably inserted into the interior of the main shell, a front panel is clamped at one end of the inner shell, and the front panel is fixed to one end of the main shell by bolts, a front lens group is fixed at one end of the inner shell, a photosensitive module is installed at the other end of the inner shell, and a lens adjustment mechanism is installed between the photosensitive end of the photosensitive module and the front lens group. During the operation of the conventional monitoring camera of the present invention, zooming can only be achieved through an internally matched lens combination, and the zoom multiple is limited. During the zooming process, the monitoring camera matches different combination lenses according to the observation distance to achieve zooming.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring cameras, and in particular to a zoomable security monitoring camera. Background Art

[0002] With the growing demand for security monitoring, camera technology plays an important role in urban security, traffic management, public place monitoring and other fields. Traditional security cameras mostly adopt a fixed focal length design. Their monitoring range and detail capture capabilities are limited by lens parameters, making it difficult to simultaneously take into account wide-area coverage and high-definition recording of local details.

[0003] The focal length of existing surveillance cameras is set during the manufacturing process, and some can be zoomed within a specified focal length range. However, in the daily use of surveillance cameras in the existing technology, the selection of focal length needs to be determined according to the usage scenario, and the following problems exist during its use: When selecting and using surveillance cameras, such as surveillance cameras installed on the roof of a building by the municipal government, the scenario it adapts to is long-distance framing, and the conventional monitoring distance is 300 meters. However, observation at a position of 50 meters and monitoring framing at a farther position such as 2 kilometers cannot be achieved by this camera. The essential reason is that the lens combination of the camera is a fixed combination, that is, the current surveillance camera cannot be set with multiple lenses and freely match the lenses to achieve zoom according to the framing distance. The existing technology is not easy to solve such problems. Therefore, there is an urgent need for a security surveillance camera with zoom to solve the above problems. Summary of the Invention

[0004] Based on the technical problem that current surveillance cameras cannot be provided with multiple lenses and can freely match lenses according to the framing distance to achieve zoom, the present invention proposes a security surveillance camera with zoom.

[0005] The present invention proposes a variable-focus security surveillance camera, which includes a main shell, an inner shell slidably inserted into the interior of the main shell, a front panel clamped at one end of the inner shell, and the front panel is fixed to one end of the main shell by bolts, a front lens group is fixed at one end of the inner shell, a photosensitive module is installed at the other end of the inner shell, a lens adjustment mechanism is installed between the photosensitive end of the photosensitive module and the front lens group, a lens clamping mechanism is installed at the bottom of the main shell, a first hole is opened at the bottom of the main shell, and a fan chassis is fixed at the top of the first hole.

[0006] Preferably, two waterproof top cover studs are welded and fixed to the top of the main shell.

[0007] Preferably, a horizontally arranged lens storage rack is fixed to the inner wall of the bottom of the inner shell, and an array of lens slots are provided on the top of the lens storage rack, and a silicone sleeve is nested inside the lens slots.

[0008] Preferably, a fan is installed inside the fan chassis, and an air inlet is provided at the bottom of the fan chassis. A filter element is installed at the air inlet position of the fan chassis, and an air outlet pipe is installed at the top of the fan chassis.

[0009] Preferably, the lens adjustment mechanism includes a horizontally mounted zoom barrel, and two first electric push rods are hingedly mounted on the inner walls on both sides of the main shell, and the tops of the two first electric push rods on the same side are fixed with zoom barrel bottom covers, and the two zoom barrel bottom covers at the bottom are in contact with the zoom barrel at the top and maintain a sealed contact position, and the inner wall of the main shell is fixed with a first servo, and the first servo is fixed to the rotating shaft of the first electric push rod.

[0010] Preferably, the lens adjustment mechanism also includes a zoom slide fixed on the top of the zoom barrel, and a first lens clamp seat slide groove and a second lens clamp seat slide groove are provided inside the zoom slide, and the first lens clamp seat is slidably connected to the inside of the first lens clamp seat slide groove, and a first driving screw is installed inside the first lens clamp seat slide groove through a bearing, and the first lens clamp seat and the first driving screw are threadedly installed, and a first driving motor is fixed to the end of the zoom slide, and the output shaft of the first driving motor is fixed to one end of the first driving screw.

[0011] Preferably, the internal sliding clamp of the second lens clamp seat slide groove is connected to two vertically arranged second lens clamp seats, the side walls of the second lens clamp seat slide groove are fixed with side racks, the interior of the second lens clamp seat is fixed with a second driving motor, the output shaft of the second driving motor is fixed with a driving gear, the driving gear is meshed with the side racks, and the bottoms of the first lens clamp seat and the second lens clamp seat are both installed with silicone clamps.

[0012] Preferably, the lens clamping mechanism includes a bottom slide fixed to the bottom inner wall of the main shell body, a bottom slide groove is opened on the top of the bottom slide, a clamping base slider is slidably installed inside the bottom slide groove, a clamping base is fixed on the top of the clamping base slider, a second horizontally arranged driving screw is installed inside the bottom slide groove through a bearing, a threaded sleeve is installed between the clamping base slider and the second driving screw, a third driving motor is fixed to the end of the bottom slide, and the output shaft of the third driving motor is fixed to one end of the second driving screw.

[0013] Preferably, a clamping swing arm is installed inside the clamping base through a bearing, a second electric push rod is nested and fixed on the top of the clamping swing arm, a lens clamp is fixed on the top of the second electric push rod, the clamping claw of the lens clamp is made of silicone material, a second servo is fixed on the side wall of the clamping base, and the output shaft of the second servo is fixed to the rotating shaft of the clamping swing arm.

[0014] Preferably, sealing gaskets are provided at the contact position between the main shell and the inner shell, and at the contact position between the inner shell and the front panel, and a one-way exhaust port is provided at the installation position of the front lens group in the inner shell.

[0015] The beneficial effects of the present invention are:

[0016] 1. This zoomable security surveillance camera, during the operation of the surveillance camera, conventional zoom cameras can only zoom through an internally matched lens combination, and the zoom multiple is limited. During the zoom process, this surveillance camera matches different combination lenses according to the observation distance to achieve zoom.

[0017] 2. The fan inside the bottom fan chassis of this zoomable security surveillance camera runs, blowing air into the interior of the surveillance camera to form a positive pressure area inside. The incoming air is filtered by the set filter element, and the gas is discharged through the one-way exhaust port. The fan can achieve positive pressure dust removal and dissipate the heat inside the surveillance camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a variable-focus security surveillance camera proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the overall exploded structure of a zoomable security surveillance camera proposed by the present invention;

[0020] Figure 3 This is a schematic side view of the cross-sectional structure of a variable-focus security surveillance camera proposed by the present invention;

[0021] Figure 4 This is a schematic structural diagram of a lens clamping mechanism for a variable-focus security surveillance camera proposed by the present invention;

[0022] Figure 5 This is a structural schematic diagram of a lens adjustment mechanism for a variable-focus security surveillance camera proposed by the present invention;

[0023] Figure 6 The present invention provides a schematic side view of the cross-sectional structure of a lens adjustment mechanism for a variable-focus security surveillance camera.

[0024] In the figure: 1. Main shell; 2. Front panel; 3. Waterproof top cover stud; 4. Front lens group; 5. Photosensitive module; 6. Zoom barrel; 7. Inner shell; 8. First drive motor; 9. Zoom slide; 10. Lens storage rack; 11. Lens slot; 12. Fan chassis; 13. Bottom slide; 14. Bottom slide slot; 15. Clamping base; 16. Zoom barrel bottom cover; 17. First electric push rod; 18. Third drive motor; 19. Second drive screw; 20. Second servo; 21. Second electric push rod; 22. Lens clamp; 23. Clamping swing arm; 24. Clamping base slider; 25. First lens clamp; 26. Silicone clamp; 27. First lens clamp slot; 28. Second lens clamp slot; 29. ​​Second lens clamp; 30. Drive gear; 31. Side rack. DETAILED DESCRIPTION

[0025] Reference Figures 1-6 A variable-focus security surveillance camera includes a main shell 1, an inner shell 7 is slidably inserted into the interior of the main shell 1, a front panel 2 is clamped at one end of the inner shell 7, and the front panel 2 is fixed to one end of the main shell 1 by bolts, a front lens group 4 is fixed at one end of the inner shell 7, a photosensitive module 5 is installed at the other end of the inner shell 7, a lens adjustment mechanism is installed between the photosensitive end of the photosensitive module 5 and the front lens group 4, a lens clamping mechanism is installed at the bottom of the main shell 1, a first hole is opened at the bottom of the main shell 1, and a fan chassis 12 is fixed at the top of the first hole.

[0026] Furthermore, two waterproof top cover studs 3 are welded and fixed to the top of the main shell 1.

[0027] Furthermore, a horizontally arranged lens storage rack 10 is fixed to the inner wall of the bottom of the inner shell 7 , and an array of lens slots 11 are provided on the top of the lens storage rack 10 , and a silicone sleeve is nested inside the lens slots 11 .

[0028] Furthermore, a fan is installed inside the fan chassis 12, and an air inlet is provided at the bottom of the fan chassis 12. A filter element is installed at the air inlet position of the fan chassis 12, and an air outlet pipe is installed at the top of the fan chassis 12.

[0029] Furthermore, the lens adjustment mechanism includes a horizontally mounted zoom barrel 6, and two first electric push rods 17 are hingedly mounted on the inner walls on both sides of the main shell 1. The tops of the two first electric push rods 17 on the same side are fixed with zoom barrel bottom covers 16. The two zoom barrel bottom covers 16 at the bottom are in contact with the zoom barrel 6 at the top and the contact position is kept sealed. A first servo is fixed to the inner wall of the main shell 1, and the first servo is fixed to the rotating shaft of the first electric push rod 17.

[0030] Furthermore, the lens adjustment mechanism also includes a zoom slide 9 fixed on the top of the zoom barrel 6, and a first lens clamp seat slide groove 27 and a second lens clamp seat slide groove 28 are provided inside the zoom slide 9. The first lens clamp seat slide groove 27 is internally slidably connected with the first lens clamp seat 25, and the first lens clamp seat slide groove 27 is internally installed with a first driving screw through a bearing. The first lens clamp seat 25 and the first driving screw are threadedly installed, and a first driving motor 8 is fixed to the end of the zoom slide 9, and the output shaft of the first driving motor 8 is fixed to one end of the first driving screw.

[0031] Furthermore, the internal sliding card of the second lens clamp seat groove 28 is connected to two vertically arranged second lens clamp seats 29, the side walls of the second lens clamp seat groove 28 are fixed with side racks 31, the interior of the second lens clamp seat 29 is fixed with a second drive motor, the output shaft of the second drive motor is fixed with a drive gear 30, the drive gear 30 is meshed with the side rack 31, and the bottom of the first lens clamp seat 25 and the second lens clamp seat 29 are both installed with silicone clamps 26.

[0032] Furthermore, the lens clamping mechanism includes a bottom slide 13 fixed to the bottom inner wall of the main shell 1, a bottom slide groove 14 is opened on the top of the bottom slide 13, a clamping base slider 24 is slidably installed inside the bottom slide groove 14, a clamping base 15 is fixed on the top of the clamping base slider 24, a horizontally arranged second drive screw 19 is installed inside the bottom slide groove 14 through a bearing, the clamping base slider 24 and the second drive screw 19 are threadedly installed, a third drive motor 18 is fixed to the end of the bottom slide 13, and the output shaft of the third drive motor 18 is fixed to one end of the second drive screw 19.

[0033] Furthermore, a clamping swing arm 23 is installed inside the clamping base 15 through a bearing, and a second electric push rod 21 is nested and fixed on the top of the clamping swing arm 23. A lens clamp 22 is fixed on the top of the second electric push rod 21. The clamping claw of the lens clamp 22 is made of silicone. A second servo 20 is fixed to the side wall of the clamping base 15, and the output shaft of the second servo 20 is fixed to the rotating shaft of the clamping swing arm 23.

[0034] Furthermore, sealing gaskets are provided at the contact positions between the main shell 1 and the inner shell 7, as well as at the contact positions between the inner shell 7 and the front panel 2, and a one-way exhaust port is provided at the installation position of the inner shell 7 at the front lens group 4.

[0035] When the present invention is used: when using the surveillance camera, the inner shell 7 of the camera is disassembled and separated, and a suitable set of lenses is selected, placed on the top of the lens storage rack 10, and clamped into the lens slot 11. During use, the fan inside the bottom fan chassis 12 runs, blowing air into the interior of the surveillance camera, so that a positive pressure area is formed inside. The intake air is filtered by the provided filter element, and the gas is discharged through the one-way exhaust port, that is, the positive pressure dust removal can be achieved by the fan, and the heat inside the surveillance camera can also be dissipated; during the operation of the surveillance camera, a conventional zoom camera can only zoom by a combination of lenses that are matched internally, and the zoom multiple is limited. During the zoom process, the surveillance camera matches different combination lenses according to the observation distance to achieve zoom. The lenses are placed on the lens storage rack 10. When replacing, first First, the two zoom barrel bottom covers 16 at the bottom are moved and stored to the two sides by the first electric push rod 17, and the lens clamping mechanism works. The third drive motor 18 controls the position movement of the clamping base 15 to the position of the corresponding lens. The second servo 20 controls the offset of the clamping swing arm 23, and the lens to be used is clamped by the second electric push rod 21 and the lens clamping claw 22 at its end, and sent to the corresponding first lens clamp 25 or the second lens clamp 29. The lens is clamped firmly by the two silicone clamps 26 at the bottom; after the lens is replaced, the first electric push rod 17 on the side wall controls the zoom barrel bottom cover 16 and the zoom barrel 6 to close. During the zooming process, the first drive motor 8 adjusts the position of the lens on the first lens clamp 25, and the second drive motor controls the position of the corresponding second lens clamp 29 to realize the zoom framing of the surveillance camera.

[0036] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A security surveillance camera with variable focus, comprising a main housing (1), characterized in that: The main housing (1) is slidably plugged with an inner housing (7), one end of the inner housing (7) is clamped with a front panel (2), and the front panel (2) is fixed to one end of the main housing (1) by bolts, one end of the inner housing (7) is fixed with a front lens group (4), the other end of the inner housing (7) is installed with a photosensitive module (5), a lens adjustment mechanism is installed between the photosensitive end of the photosensitive module (5) and the front lens group (4), the bottom of the main housing (1) is installed with a lens clamping mechanism, the bottom of the main housing (1) is provided with a first hole, and a fan chassis (12) is fixed at the top of the first hole; A lens storage rack (10) arranged horizontally is fixed to the bottom inner wall of the inner shell (7), and an array of lens slots (11) are provided on the top of the lens storage rack (10), and a silicone sleeve is nested inside the lens slot (11). The lens clamping mechanism comprises a bottom slide (13) fixed to the bottom inner wall of the main shell (1), a bottom slide groove (14) is provided on the top of the bottom slide (13), a clamping base slider (24) is slidably installed inside the bottom slide groove (14), a clamping base (15) is fixed on the top of the clamping base slider (24), a horizontally arranged second driving screw (19) is installed inside the bottom slide groove (14) through a bearing, and the clamping base slider (2 4) is threadedly sleeved and installed between the bottom slide (13) and the second driving screw (19), a third driving motor (18) is fixed to the end of the bottom slide (13), the output shaft of the third driving motor (18) is fixed to one end of the second driving screw (19), a clamping swing arm (23) is installed inside the clamping base (15) through a bearing, a second electric push rod (21) is nested and fixed on the top of the clamping swing arm (23), a lens clamping claw (22) is fixed on the top of the second electric push rod (21), the clamping claw of the lens clamping claw (22) is made of silicone material, a second servo (20) is fixed to the side wall of the clamping base (15), and the output shaft of the second servo (20) is fixed to the rotating shaft of the clamping swing arm (23).

2. The variable-focus security surveillance camera according to claim 1, characterized in that: Two waterproof top cover studs (3) are welded and fixed to the top of the main housing (1).

3. The variable-focus security surveillance camera according to claim 1, characterized in that: A fan is installed inside the fan case (12), and an air inlet is provided at the bottom of the fan case (12). A filter element is installed at the air inlet position of the fan case (12), and an air outlet pipe is installed at the top of the fan case (12).

4. The variable-focus security surveillance camera according to claim 1, characterized in that: The lens adjustment mechanism comprises a horizontally mounted zoom barrel (6), and two first electric push rods (17) are hingedly mounted on the inner walls of both sides of the main housing (1), and a zoom barrel bottom cover (16) is fixed to the top of the two first electric push rods (17) located on the same side, and the two zoom barrel bottom covers (16) at the bottom are in contact with the zoom barrel (6) at the top and maintain a sealed contact position, and a first servo is fixed to the inner wall of the main housing (1), and the first servo is fixed to the rotating shaft of the first electric push rod (17).

5. The variable-focus security surveillance camera according to claim 4, characterized in that: The lens adjustment mechanism further comprises a zoom slide (9) fixed on the top of the zoom barrel (6), a first lens clamp seat slide groove (27) and a second lens clamp seat slide groove (28) are provided inside the zoom slide (9), a first lens clamp seat (25) is slidably engaged inside the first lens clamp seat slide groove (27), a first driving screw is installed inside the first lens clamp seat slide groove (27) through a bearing, the first lens clamp seat (25) and the first driving screw are threadedly sleeved, a first driving motor (8) is fixed to the end of the zoom slide (9), and an output shaft of the first driving motor (8) is fixed to one end of the first driving screw.

6. The variable-focus security surveillance camera according to claim 5, characterized in that: The second lens clamping seat slide groove (28) is internally slidably connected to two vertically arranged second lens clamping seats (29), the side walls of the second lens clamping seat slide groove (28) are fixed with side racks (31), the second drive motor is fixed inside the second lens clamping seat (29), the output shaft of the second drive motor is fixed with a drive gear (30), the drive gear (30) and the side racks (31) are meshed and installed, and the bottoms of the first lens clamping seat (25) and the second lens clamping seat (29) are both installed with silicone clamps (26).

7. The variable-focus security surveillance camera according to claim 1, characterized in that: Sealing gaskets are provided at the contact position between the main housing (1) and the inner housing (7) and at the contact position between the inner housing (7) and the front panel (2). A one-way exhaust port is provided at the installation position of the inner housing (7) where the front lens group (4) is installed.

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