Zoom security and protection monitoring camera

Abstract

The invention belongs to the technical field of aluminum alloy processing, particularly relates to a variable-focus security and protection monitoring camera, and provides the following scheme aiming at the problems that an existing monitoring camera cannot be provided with a plurality of lenses and freely matched with the lenses to realize zooming according to a view finding distance: the variable-focus security and protection monitoring camera comprises a main shell, an inner shell is slidably inserted into the main shell, a front panel is clamped to one end of the inner shell and fixed to one end of the main shell through a bolt, a front lens group is fixed to one end of the inner shell, a photosensitive module is mounted at the other end of the inner shell, and the photosensitive module is fixed to the other end of the main shell through a bolt. And a lens adjusting mechanism is arranged between the photosensitive end of the photosensitive module and the front lens group. In the working process of a conventional monitoring camera, zooming can only be carried out through an internally matched lens combination, the zooming multiple is limited, and in the zooming process of the monitoring camera, different combined lenses are matched according to the observation distance to realize zooming.

Description

Technical Field

[0001] The present invention relates to the technical field of surveillance cameras, and in particular to a variable-focus security surveillance camera. Background Art

[0002] With the increasing demand for security surveillance, camera technology plays an important role in urban security, traffic management, public place surveillance and other fields. Traditional security cameras mostly adopt fixed-focus designs, and their monitoring range and detail capture ability are limited by lens parameters, making it difficult to simultaneously achieve wide-area coverage and high-definition recording of local details.

[0003] The focal lengths of existing surveillance cameras are set during the manufacturing process, and some can also be used with variable focal lengths within a specified range. However, in the daily use of existing surveillance cameras, the selection of the focal length needs to be specified according to the usage scenario, and there are the following problems in the usage process: when selecting and using a surveillance camera, such as a surveillance camera installed on the roof by the municipal government, the applicable scenario is long-distance shooting, and the conventional monitoring distance is 300 meters. However, for observations at a position of 50 meters and surveillance shooting at a farther position such as 2 kilometers, it cannot be achieved by this one camera. The essential reason is that the lens combination of the camera is a fixed combination, that is, the current surveillance camera cannot set multiple lenses and freely match the lenses according to the shooting distance to achieve zooming. And it is not easy to solve such problems in the prior art. Therefore, there is an urgent need for a variable-focus security surveillance camera to solve the above problems. Summary of the Invention

[0004] Based on the technical problem that the current surveillance camera cannot set multiple lenses and freely match the lenses according to the shooting distance to achieve zooming, the present invention proposes a variable-focus security surveillance camera.

[0005] A variable-focus security surveillance camera proposed by the present invention includes a main housing, an inner housing is slidably inserted into the interior of the main housing, a front panel is clamped at one end of the inner housing, and the front panel is fixed to one end of the main housing by bolts. A front lens group is fixed at one end of the inner housing, an image sensor module is installed at the other end inside the inner housing, a lens adjustment mechanism is installed between the light-sensitive end of the image sensor module and the front lens group, a lens clamping mechanism is installed at the bottom of the main housing, a first hole is opened at the bottom of the main housing, and a fan chassis is fixed at the top position of the first hole.

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

[0007] Preferably, a horizontally arranged lens storage rack is fixed to the inner wall of the bottom of the inner housing. An array of lens card slots is formed at the top of the lens storage rack, and a silica gel sleeve is nested inside the lens card 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 position of the air inlet 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 installed zoom cylinder. Two first electric push rods are hinged and installed on both inner walls of the main housing. The top of the two first electric push rods on the same side is fixed with a zoom cylinder bottom cover. The two bottom zoom cylinder covers at the bottom are in contact with the top zoom cylinder and keep the contact position sealed. A first servo motor is fixed to the inner wall of the main housing, and the first servo motor is fixed to the rotating shaft of the first electric push rod.

[0010] Preferably, the lens adjustment mechanism further includes a zoom slide fixed to the top of the zoom cylinder. A first lens holder chute and a second lens holder chute are formed inside the zoom slide. A first lens holder is slidably clamped inside the first lens holder chute. A first driving lead screw is installed through a bearing inside the first lens holder chute. The first lens holder is installed with a threaded sleeve between it and the first driving lead screw. 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 lead screw.

[0011] Preferably, two vertically arranged second lens holders are slidably clamped inside the second lens holder chute. A side rack is fixed to the side wall of the second lens holder chute. A second driving motor is fixed inside the second lens holder. The output shaft of the second driving motor is fixed with a driving gear, and the driving gear is meshed with the side rack. Silica gel chucks are installed at the bottoms of the first lens holder and the second lens holder.

[0012] Preferably, the lens clamping mechanism includes a bottom slide fixed to the inner wall of the bottom of the main housing. A bottom slide chute is formed at the top of the bottom slide. A clamping base slider is slidably installed inside the bottom slide chute. A clamping base is fixed to the top of the clamping base slider. A horizontally arranged second driving lead screw is installed through a bearing inside the bottom slide chute. The clamping base slider is installed with a threaded sleeve between it and the second driving lead 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 lead 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 jaws of the lens clamp are made of silicone, 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: 1. The zoomable security surveillance camera, during the operation of the surveillance camera, the conventional zoom camera can only zoom through the internally matched lens combination, and the zoom multiple is limited. During the zooming process, the surveillance camera matches different combination lenses according to the observation distance to achieve zooming.

[0016] 2. For the zoomable security surveillance camera, the fan inside the bottom fan chassis runs to blow air into the interior of the surveillance camera, forming a positive pressure area inside. The intake air is filtered through the set filter element, and the gas is discharged through the one-way exhaust port, which can achieve positive pressure dust removal through the fan and dissipate the heat inside the surveillance camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a variable-focus security monitoring camera proposed by the present invention; Figure 2 This is a schematic diagram of the overall exploded structure of a variable-focus security monitoring camera proposed by the present invention; Figure 3 A schematic cross-sectional side view of a variable-focus security surveillance camera proposed by the present invention; Figure 4 This is a schematic structural diagram of a lens clamping mechanism of a variable-focus security monitoring camera proposed by the present invention; Figure 5 This is a schematic structural diagram of a lens adjustment mechanism of a variable-focus security surveillance camera proposed by the present invention; Figure 6 The present invention is a schematic cross-sectional side view of the lens adjustment mechanism of a variable-focus security monitoring camera.

[0018] In the figure: 1, main housing; 2, front panel; 3, waterproof top cover stud; 4, front lens group; 5, photosensitive module; 6, zoom cylinder; 7, inner housing; 8, first drive motor; 9, zoom carriage; 10, lens storage rack; 11, lens card slot; 12, fan chassis; 13, bottom carriage; 14, bottom carriage chute; 15, clamping base; 16, zoom cylinder bottom cover; 17, first electric push rod; 18, third drive motor; 19, second drive lead screw; 20, second servo; 21, second electric push rod; 22, lens clamping jaw; 23, clamping swing arm; 24, clamping base slider; 25, first lens clamping seat; 26, silicone chuck; 27, first lens clamping seat chute; 28, second lens clamping seat chute; 29, second lens clamping seat; 30, drive gear; 31, side rack. Detailed implementation

[0019] Refer to Figures 1 - 6 , a variable - focal - length security monitoring camera, including a main housing 1, an inner housing 7 is slidably inserted into the interior of the main housing 1, a front panel 2 is clamped at one end of the inner housing 7, and the front panel 2 is fixed to one end of the main housing 1 by bolts. A front lens group 4 is fixed at one end of the inner housing 7, a photosensitive module 5 is installed at the other end inside the inner housing 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 housing 1, a first hole is opened at the bottom of the main housing 1, and a fan chassis 12 is fixed at the top position of the first hole.

[0020] Furthermore, two waterproof top cover studs 3 are welded and fixed to the top of the main housing 1.

[0021] Furthermore, a horizontally arranged lens storage rack 10 is fixed to the bottom inner wall of the inner housing 7. An array of lens card slots 11 is opened at the top of the lens storage rack 10, and a silicone sleeve is nested inside the lens card slots 11.

[0022] 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.

[0023] Furthermore, the lens adjustment mechanism includes a horizontally installed zoom cylinder 6, and two first electric push rods 17 are hinged and installed on both inner walls of the main housing 1. The tops of the two first electric push rods 17 on the same side are fixed with a zoom cylinder bottom cover 16. The two zoom cylinder bottom covers 16 at the bottom are in contact with the top zoom cylinder 6 and keep the contact position sealed. 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.

[0024] Further, the lens adjustment mechanism further includes a zoom carriage 9 fixed to the top of the zoom cylinder 6. Inside the zoom carriage 9, a first lens holder chute 27 and a second lens holder chute 28 are provided. A first lens holder 25 is slidably and snap-fitted inside the first lens holder chute 27. A first driving lead screw is installed inside the first lens holder chute 27 through a bearing. The first lens holder 25 is installed with a threaded sleeve between it and the first driving lead screw. A first driving motor 8 is fixed to the end of the zoom carriage 9, and the output shaft of the first driving motor 8 is fixed to one end of the first driving lead screw.

[0025] Further, two vertically arranged second lens holders 29 are slidably and snap-fitted inside the second lens holder chute 28. A side rack 31 is fixed to the side wall of the second lens holder chute 28. A second driving motor is fixed inside the second lens holder 29, and a driving gear 30 is fixed to the output shaft of the second driving motor. The driving gear 30 is installed in meshing engagement with the side rack 31. Silicone chucks 26 are installed at the bottoms of both the first lens holder 25 and the second lens holder 29.

[0026] Further, the lens clamping mechanism includes a bottom carriage 13 fixed to the inner wall of the bottom of the main housing 1. A bottom carriage chute 14 is provided at the top of the bottom carriage 13. A clamping base slider 24 is slidably installed inside the bottom carriage chute 14. A clamping base 15 is fixed to the top of the clamping base slider 24. A horizontally arranged second driving lead screw 19 is installed inside the bottom carriage chute 14 through a bearing. The clamping base slider 24 is installed with a threaded sleeve between it and the second driving lead screw 19. A third driving motor 18 is fixed to the end of the bottom carriage 13, and the output shaft of the third driving motor 18 is fixed to one end of the second driving lead screw 19.

[0027] Further, 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 to the top of the clamping swing arm 23. A lens gripper 22 is fixed to the top of the second electric push rod 21. The gripper of the lens gripper 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.

[0028] Further, sealing washers are provided at the contact positions between the main housing 1 and the inner housing 7 and between the inner housing 7 and the front panel 2. A one-way exhaust port is provided at the installation position of the front lens group 4 on the inner housing 7.

[0029] When the present invention is in use: When using this surveillance camera, disassemble and separate the inner housing 7 of the camera, select a suitable set of lenses, place them on the top of the lens storage rack 10, and clamp them inside the lens slot 11. During use, the fan inside the bottom fan chassis 12 operates to blow air into the surveillance camera, creating a positive pressure area inside. The intake air is filtered through the provided filter element, and the gas is discharged through the one-way exhaust port, so that positive pressure dust removal can be achieved through 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 through the pre-matched lens combinations inside, and the zoom multiple is limited. During the zoom process of this surveillance camera, different combined lenses are matched according to the observed distance to achieve zoom. The lenses are placed on the lens storage rack 10. When replacing the lenses, first, the first electric push rod 17 moves the two bottom zoom cylinder bottom covers 16 to the sides and retracts them. The lens clamping mechanism operates. The third drive motor 18 controls the position movement of the clamping base 15, moves to the position corresponding to the lens, the second servo 20 controls the offset of the clamping swing arm 23, and the second electric push rod 21 and the lens clamping claws 22 at its end clamp the lens to be used and send it into the corresponding first lens clamping seat 25 or the second lens clamping seat 29, and the lens is firmly clamped by the two silicone chucks 26 at the bottom. After the lens is replaced, the first electric push rod 17 on the side wall controls the closing of the zoom cylinder bottom cover 16 and the zoom cylinder 6. During the zoom process, the first drive motor 8 adjusts the position of the lens on the first lens clamping seat 25, and the second drive motor controls the position adjustment of the corresponding second lens clamping seat 29 to achieve zooming and framing for the surveillance camera to use.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A variable-focus security surveillance camera, comprising a main housing (1), characterized in that: 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 means of bolts; a front lens group (4) is fixed to 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.

2. A 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 horizontally arranged lens storage rack (10) is fixed to the inner wall of the bottom of the inner shell (7); lens slots (11) distributed in an array are provided on the top of the lens storage rack (10); and silicone sleeves are nested inside the lens slots (11).

4. 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 arranged 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).

5. The variable-focus security surveillance camera according to claim 1, characterized in that: The lens adjustment mechanism comprises a zoom barrel (6) mounted horizontally, 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 on 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 the contact position is kept sealed, and a first steering gear is fixed on the inner wall of the main housing (1), and the first steering gear is fixed to the rotating shaft of the first electric push rod (17).

6. The variable-focus security surveillance camera according to claim 5, 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) via a bearing; the first lens clamp seat (25) and the first driving screw are threadedly sleeved and installed; a first driving motor (8) is fixed to the end of the zoom slide (9); an output shaft of the first driving motor (8) is fixed to one end of the first driving screw.

7. The variable-focus security surveillance camera according to claim 6, characterized in that: The second lens clamp seat slide groove (28) is internally slidably clamped with two vertically arranged second lens clamp seats (29); a side rack (31) is fixed to the side wall of the second lens clamp seat slide groove (28); a second drive motor is fixed inside the second lens clamp seat (29); a drive gear (30) is fixed to the output shaft of the second drive motor; the drive gear (30) is meshedly installed with the side rack (31); and a silicone clamp (26) is installed at the bottom of the first lens clamp seat (25) and the second lens clamp seat (29).

8. The variable-focus security surveillance camera according to claim 1, characterized in that: The lens clamping mechanism comprises a bottom slide (13) fixed to the inner wall of the bottom 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 mounted inside the bottom slide groove (14), a clamping base (15) is fixed on the top of the clamping base slider (24), a second horizontally arranged drive screw (19) is mounted inside the bottom slide groove (14) via a bearing, the clamping base slider (24) and the second drive screw (19) are threadedly sleeved, a third drive motor (18) is fixed to the end of the bottom slide (13), and an output shaft of the third drive motor (18) is fixed to one end of the second drive screw (19).

9. The variable-focus security surveillance camera according to claim 8, characterized in that: A clamping swing arm (23) is installed inside the clamping base (15) via 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), and the clamping claw of the lens clamping claw (22) is made of silicone. A second steering gear (20) is fixed to the side wall of the clamping base (15), and an output shaft of the second steering gear (20) is fixed to the rotating shaft of the clamping swing arm (23).

10. 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), and 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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