Camera protection box

Abstract

The invention relates to the technical field of ship camera protection, and discloses a camera protection box which comprises a box body, an opening is formed in the front side wall of the box body, a box door is installed at the opening in a matched mode, and the top of the box door abuts against the inner side of the front side wall of the box body; a guide rail is installed in the box body and extends in the front-back direction of the box body. A movable pulley is rotationally mounted at the upper part of the box door and can roll back and forth along the guide rail; a connecting rod is hinged to the lower portion of the front end of the guide rail and hinged to the lower portion of the box door. A driving device is arranged in the box body and used for driving the box door to rotate towards the inner side of the box body and driving the movable pulley to roll from the front side of the guide rail to the rear side of the guide rail. The bottom of the box door is connected with a reset piece which is connected with the bottom wall of the box body. Therefore, the box door is opened for real-time monitoring during operation, the reset part automatically drags the box door to be closed in a non-operation state, the camera is prevented from being exposed in severe environments such as high salinity, high humidity and strong wind on the sea for a long time, and the service life of the camera is remarkably prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of ship camera protection, and particularly to a camera protection box. Background Art

[0002] During the takeoff and landing of carrier-based aircraft on the open deck of a ship, it is necessary to rely on an external ship camera to monitor the takeoff and landing platform and the surrounding environment in real time to ensure the safety of the aircraft during takeoff and landing. However, the existing external ship cameras lack effective protection measures. The external ship cameras are long-term exposed to harsh environments such as high salt, high humidity, and strong winds at sea, and are vulnerable to seawater corrosion, ultraviolet aging, and mechanical collision, resulting in an increase in the failure rate and a shortening of the service life of the external ship cameras. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the external ship camera lacks effective protection measures. The external ship camera is long-term exposed to harsh environments such as high salt, high humidity, and strong winds at sea, and is vulnerable to seawater corrosion, ultraviolet aging, and mechanical collision, resulting in an increase in the failure rate and a shortening of the service life of the external ship camera.

[0004] To solve the above technical problem, the present invention provides a camera protection box, including a box body. An opening is provided on the front side wall of the box body, and a box door is fitted and installed at the opening. The top of the box door abuts against the inner side of the front side wall of the box body.

[0005] A guide rail is installed inside the box body, and the guide rail extends along the front-back direction of the box body.

[0006] A movable pulley is rotatably installed on the upper part of the box door, and the movable pulley can roll back and forth along the guide rail.

[0007] A connecting rod is hinged to the lower front end of the guide rail, and the connecting rod is hinged to the lower part of the box door.

[0008] A driving device is provided inside the box body, and the driving device is used to drive the box door to rotate towards the inner side of the box body, or drive the movable pulley to roll from the front side of the guide rail to the rear side of the guide rail.

[0009] The bottom of the box door is connected with a reset member, and the reset member is connected with the bottom wall of the box body.

[0010] Preferably, the driving device includes a winding machine and a fixed pulley. The winding machine is arranged on the bottom wall of the box body; the fixed pulley is arranged at the rear end of the guide rail.

[0011] A traction rope is provided on the winding machine, and the traction rope passes around the fixed pulley and is connected with the upper part of the box door.

[0012] After the winding machine is started, it pulls the traction rope, so that the traction rope drives the box door to rotate towards the inner side of the box body, driving the movable pulley to roll from the front side of the guide rail to the rear side of the guide rail.

[0013] Preferably, the driving device includes a winding machine, which is arranged at the rear end of the guide rail;

[0014] A towing rope is provided on the winding machine, and the towing rope is connected to the upper part of the box door.

[0015] Preferably, a first connecting ear is provided on the upper part of the box door;

[0016] The towing rope is connected to the first connecting ear.

[0017] Preferably, the driving device includes an electro-suction electromagnet and a power source; the electro-suction electromagnet is arranged at the rear end of the guide rail;

[0018] After the power source is turned on, the electro-suction electromagnet attracts the movable pulley, so that the movable pulley rolls from the front side of the guide rail to the rear side of the guide rail, driving the box door to rotate towards the inner side of the box body.

[0019] Preferably, a first connecting rod is fixed to the upper part of the box door, and a second connecting rod is fixed to the lower part of the box door;

[0020] The movable pulley is rotatably installed at the rear end of the first connecting rod;

[0021] The front end of the guide rail has a downward extending rod, one end of the connecting rod is hinged to the bottom of the downward extending rod, and the other end of the connecting rod is hinged to the rear end of the second connecting rod.

[0022] Preferably, the guide rail is inclined upward from the front end to the rear end.

[0023] Preferably, a second connecting ear is provided at the bottom of the box door, and a third connecting ear is provided on the bottom wall of the box body;

[0024] The resetting member includes an elastic rope;

[0025] One end of the elastic rope is connected to the second connecting ear, and the other end of the elastic rope is connected to the third connecting ear.

[0026] Preferably, a second connecting ear is provided at the bottom of the box door, and a third connecting ear is provided on the bottom wall of the box body;

[0027] The resetting member includes a reset spring;

[0028] One end of the reset spring is connected to the second connecting ear, and the other end of the reset spring is connected to the third connecting ear.

[0029] Preferably, there are two guide rails, and the two guide rails are symmetrically installed on the left and right side walls of the box body;

[0030] One movable pulley is rotatably connected to each of the left and right sides of the upper part of the box door, and each movable pulley rolls back and forth along each guide rail.

[0031] Compared with the prior art, the beneficial effects of the camera protection box according to the embodiment of the present invention are as follows:

[0032] When the camera needs to be used, the driving device drives the box door to rotate towards the inner side of the box body, and drives the movable pulley to roll from the front side of the guide rail to the rear side of the guide rail. In this way, while the upper part of the box door rotates towards the inner side of the box body around the movable pulley, it moves towards the inner side of the box body following the movable pulley. At the same time, the lower part of the box door rotates around the lower front end of the guide rail through the connecting rod, optimizing the force transmission efficiency and ensuring the synchronism and stability of the overall opening and closing process of the box door. When the camera does not need to be used, the driving mechanism is powered off. Under the action of the gravity of the box door and the cooperation of the resetting member, the lower part of the box door rotates back around the lower front end of the guide rail through the connecting rod. At the same time, the movable pulley moves from the rear to the front in the guide rail, and the upper part of the box door rotates and resets around the movable pulley to close the box door; thus, the box door can be opened in real time for monitoring during operation, and the resetting member automatically pulls the box door to close in the non-operation state, avoiding the camera being exposed to harsh environments such as high salt, high humidity, and strong wind at sea for a long time, and significantly extending the service life of the camera. Description of the Drawings

[0033] Figure 1 is a three-dimensional schematic structural view of the box door of a camera protection box provided in Embodiment 1 of the present invention when it is closed;

[0034] Figure 2 is Figure 1 the sectional view taken along the line A-A of

[0035] Figure 3 is Figure 1 the plan view taken along the line A-A of

[0036] Figure 4 is a three-dimensional schematic structural view of the box door of a camera protection box provided in Embodiment 1 of the present invention during the opening process;

[0037] Figure 5 is Figure 4 the sectional view taken along the line B-B of

[0038] Figure 6 is Figure 4 the plan view taken along the line B-B of

[0039] Figure 7 is a three-dimensional schematic structural view of the box door of a camera protection box provided in Embodiment 1 of the present invention when it is fully opened;

[0040] Figure 8 is Figure 7 the sectional view taken along the line C-C of

[0041] Figure 9 is Figure 7 the plan view taken along the line C-C of

[0042] Figure 10 is the front view of the box door of a camera protection box provided in Embodiment 1 of the present invention when it is closed;

[0043] Figure 11 It is the left view when the door of the camera protection box provided in Embodiment 1 of the present invention is closed;

[0044] Figure 12 It is the top view when the door of the camera protection box provided in Embodiment 1 of the present invention is closed;

[0045] Figure 13 It is Figure 12 The sectional view taken along the line D-D;

[0046] Figure 14 It is Figure 13 The sectional view taken along the line E-E;

[0047] Figure 15 It is the three-dimensional structure schematic diagram when the door of the camera protection box provided in Embodiment 2 of the present invention is closed;

[0048] Figure 16 It is Figure 15 The sectional view taken along the line A-A;

[0049] Figure 17 It is Figure 15 The plan view taken along the line A-A;

[0050] Figure 18 It is the three-dimensional structure schematic diagram during the opening process of the door of the camera protection box provided in Embodiment 2 of the present invention;

[0051] Figure 19 It is Figure 18 The sectional view taken along the line B-B;

[0052] Figure 20 It is Figure 18 The plan view taken along the line B-B;

[0053] Figure 21 It is the three-dimensional structure schematic diagram when the door of the camera protection box provided in Embodiment 2 of the present invention is fully opened;

[0054] Figure 22 It is Figure 21 The sectional view taken along the line C-C;

[0055] Figure 23 It is Figure 21 The plan view taken along the line C-C.

[0056] In the figure, 1 is the box body; 2 is the box door; 3 is the guide rail; 4 is the movable pulley; 5 is the first connecting rod; 6 is the second connecting rod; 7 is the downward extension rod; 8 is the connecting rod; 9 is the winding machine; 10 is the towing rope; 11 is the fixed pulley; 12 is the first connecting ear; 13 is the elastic rope; 14 is the limiting platform; 15 is the second connecting ear; 16 is the third connecting ear; 17 is the pin; 18 is the nut; 19 is the electro-suction electromagnet; 20 is the cable through-piece. Detailed implementation manner

[0057] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. It should be understood that the present invention uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0059] As Figures 1 to 14 shown, a camera protection box provided in Embodiment 1 of the present invention includes a box body 1. An opening is provided on the front side wall of the box body 1, and a box door 2 is fitted and installed at the opening. The top of the box door 2 abuts against the inner side of the front side wall of the box body 1; A guide rail 3 is installed inside the box body 1, and the guide rail 3 extends along the front and rear directions of the box body 1.

[0060] Specifically, the front side wall of the box body 1 extends downward to form a limiting platform 14, and the limiting platform 14 restricts the maximum reset angle of the box door 2 through physical blockage, improving operation safety and positioning accuracy.

[0061] Specifically, a movable pulley 4 is rotatably installed on the upper part of the box door 2, and the movable pulley 4 can roll back and forth along the guide rail 3; A connecting rod 8 is hinged to the lower part of the front end of the guide rail 3, the connecting rod 8 is hinged to the lower part of the box door 2, and a driving device is provided inside the box body 1 for driving the box door 2 to rotate towards the inside of the box body 1, or driving the movable pulley 4 to roll from the front side of the guide rail 3 to the rear side of the guide rail 3; A reset member is connected to the bottom of the box door 2, and the reset member is connected to the bottom wall of the box body 1.

[0062] In this way, the driving device drives the cabinet door 2 to rotate towards the inside of the cabinet body 1, and drives the moving pulley 4 to roll from the front side of the guide rail 3 to the rear side of the guide rail 3. Thus, while the upper part of the cabinet door 2 rotates towards the inside of the cabinet body 1 around the moving pulley 4, it moves towards the inside of the cabinet body 1 following the moving pulley 4. At the same time, the lower part of the cabinet door 2 rotates around the lower front end of the guide rail 3 through the connecting rod 8, optimizing the force transmission efficiency and ensuring the synchronism and stability of the overall opening and closing process of the cabinet door 2. When the camera is not needed, under the action of the gravity of the cabinet door 2 and the cooperation of the resetting member, the lower part of the cabinet door 2 rotates and resets around the lower front end of the guide rail 3 through the connecting rod 8. At the same time, the moving pulley 4 rolls from the rear to the front in the guide rail 3, driving the upper part of the cabinet door 2 to rotate and reset around the moving pulley 4, realizing the closing of the cabinet door 2; thus, it realizes the real-time monitoring by opening the cabinet door 2 during operation, and automatically pulls the cabinet door 2 to close under the action of the gravity of the cabinet door 2 and the cooperation of the resetting member in the non-operation state, avoiding the camera being exposed to harsh environments such as high salt, high humidity, and strong wind at sea for a long time, and significantly extending the service life of the camera.

[0063] Specifically, the driving device includes a winding machine 9 and a fixed pulley 11. The winding machine 9 is arranged on the bottom wall of the cabinet body 1; the fixed pulley 11 is arranged at the rear end of the guide rail 3; a traction rope 10 is provided on the winding machine 9. The traction rope 10 is connected to the upper part of the cabinet door 2 after passing around the fixed pulley 11. After the winding machine 9 is started, it pulls the traction rope 10, so that the traction rope 10 drives the cabinet door 2 to rotate towards the inside of the cabinet body 1, driving the moving pulley 4 to roll from the front side of the guide rail 3 to the rear side of the guide rail 3. By changing the direction of the traction rope 10 through the fixed pulley 11, the guiding function of the fixed pulley 11 ensures the optimization of the force application path of the traction rope 10, avoids the interference of lateral forces, improves the transmission efficiency, and enhances the stability and safety during the process of opening the cabinet door 2. During reset, under the action of the resetting member, the cabinet door 2 resets. The traction rope 10 connected to the upper part of the cabinet door 2 effectively limits the reset speed of the cabinet door 2, avoiding impacts or out-of-control caused by inertia, and further ensuring the operation safety and structural reliability.

[0064] Specifically, a first connecting ear 12 is provided on the upper part of the cabinet door 2; the traction rope 10 is connected to the first connecting ear 12, and the setting of the first connecting ear 12 facilitates the connection of the traction rope 10.

[0065] Specifically, a first connecting rod 5 is fixed on the upper part of the cabinet door 2, and a second connecting rod 6 is fixed on the lower part of the cabinet door 2; the moving pulley 4 is rotatably installed at the rear end of the first connecting rod 5; the front end of the guide rail 3 has a downward extending rod 7. One end of the connecting rod 8 is hinged to the bottom of the downward extending rod 7, and the other end of the connecting rod 8 is hinged to the rear end of the second connecting rod 6. The rotational connection between the first connecting rod 5 and the moving pulley 4 forms an active driving path, and the second connecting rod 6 serves as a driven driving path, forming a crank and connecting rod structure, optimizing the force transmission efficiency and realizing the synchronism and stability of the overall opening and closing process of the cabinet door 2.

[0066] Specifically, the guide rail 3 slopes upward from the front end to the rear end. The moving pulley 4 generates an upward component force during the rolling process, compensating for the sinking tendency caused by the gravity of the door 2, ensuring good fitting between the moving pulley 4 and the guide rail 3 during the rolling process, reducing the horizontal offset, and the inclination angle of the guide rail 3 can form a self-locking effect. When the door 2 is impacted by an external force, the normal force component generated by the inclined surface can prevent the moving pulley 4 from disengaging from the guide rail 3, improving the operation reliability. In addition, the guide rail 3 arranged to slope upward also makes the moving pulley 4 located at the lowest position at the front end of the guide rail 3 in the default state, ensuring good abutment between the door 2 and the limit platform 14 on the box body 1 and realizing good sealing of the door 2.

[0067] Specifically, a second connecting ear 15 is provided at the bottom of the door 2, and a third connecting ear 16 is provided on the bottom wall of the box body 1; the reset member includes an elastic cord 13; one end of the elastic cord 13 is connected to the second connecting ear 15, and the other end of the elastic cord 13 is connected to the third connecting ear 16. The setting of the second connecting ear 15 and the third connecting ear 16 facilitates the connection of the elastic cord 13. After the driving device is closed, the elastic cord 13 cooperates with the gravity of the door 2 to close the door 2.

[0068] Specifically, a first mounting hole is provided at the rear end of each first connecting rod 5, and a second mounting hole coaxial with the mounting hole is provided on each moving pulley 4. A pin 17 is provided to pass through the first mounting hole and the second mounting hole at the same time, and the first connecting rod 5 and the moving pulley 4 are hinged by tightening the pin 17 with a nut 18.

[0069] Specifically, a third mounting hole is provided at the rear end of each first connecting rod 5, a fourth mounting hole is provided at the bottom of the downward extension rod 7, and fifth and sixth mounting holes are respectively provided at both ends of the connecting rod 8. A pin 17 is provided to pass through the fourth mounting hole and the fifth mounting hole at the same time, and a pin 17 is provided to pass through the third mounting hole and the sixth mounting hole at the same time. By tightening the pin 17 with a nut 18, the other end of the connecting rod 8 is hinged to the rear end of the second connecting rod 6 and the bottom of the connecting rod 8 is hinged to the downward extension rod 7 respectively.

[0070] Specifically, there are two guide rails 3, and the two guide rails 3 are symmetrically and fixedly installed on the left and right side walls of the box body 1 respectively. A moving pulley 4 is rotatably installed on each of the upper left and right sides of the door 2, and each moving pulley 4 can roll back and forth along each guide rail 3 respectively; the symmetrically arranged guide rails 3 can ensure the stability of the rolling of the moving pulley 4. In this way, when the moving pulleys 4 roll backward along the guide rails 3 in the guide rails 3 at the same time, the upper part of the door 2 can be driven to rotate along a stable track following the moving pulleys 4.

[0071] As Figures 15 to 23As shown in the figure, a camera protection box provided in Embodiment 2 of the present invention is different from Embodiment 1 only in that in this embodiment, the driving device includes an electro-suction electromagnet 19 and a power source; the electro-suction electromagnet 19 is arranged at the rear end of each guide rail 3; a cable through-hole 20 is provided on the bottom wall of the box body 1, and the cable through-hole 20 is used for the cable of the power source to pass through the bottom wall of the box body 1 and be connected to the electro-suction electromagnet 19. After the power source is turned on, the cable supplies power to the electro-suction electromagnet 19. After the electro-suction electromagnet 19 is energized, it generates a magnetic force. The movable pulley 4 can be made of ferromagnetic materials such as iron, nickel, cobalt or their alloys. The electro-suction electromagnet 19 attracts the movable pulley 4, so that the movable pulley 4 rolls from the front side of the guide rail 3 to the rear side of the guide rail 3, driving the box door 2 to rotate inwardly towards the box body 1 to realize the opening of the box door 2. After the power source is cut off, under the action of the reset member, the box door 2 resets and closes until the box door 2 abuts against the limiting table 14 of the box body 1, and the box door 2 is completely closed. In other embodiments, only one guide rail 3 is provided, and a mounting bracket extending forward and backward is provided at the middle position of the bottom of the box body 1, and the guide rail 3 is mounted on the top of the mounting bracket.

[0072] In other embodiments, the driving device includes a winding machine 9, and the winding machine 9 is arranged at the rear end of the guide rail 3; a traction rope 10 is provided on the winding machine 9, and the traction rope 10 is connected to the upper part of the box door 2.

[0073] In other embodiments, a second connecting ear 15 is provided at the bottom of the box door 2, and a third connecting ear 16 is provided on the bottom wall of the box body 1; the reset member includes a reset spring; one end of the reset spring is connected to the second connecting ear 15, and the other end of the reset spring is connected to the third connecting ear 16.

[0074] The working process of a camera protection box provided in Embodiment 1 of the present invention is as follows: An aircraft position indicator is provided on the ship, and the aircraft position indicator is used to transmit signals to the monitoring equipment integrated host. The monitoring equipment integrated host is electrically connected to the winding machine. When the carrier-based aircraft takes off or lands, the aircraft position indicator transmits a takeoff or landing signal to the monitoring equipment integrated host, and the monitoring equipment integrated host transmits an opening signal to the winding machine. The winding machine winds the traction rope, drives the upper part of the box door through the traction rope, and at the same time, the movable pulley moves on the guide rail from the front end to the rear end of the guide rail. During the movement of the top of the box door, the lower part of the box door rotates around the first hinge point through the connecting rod to realize the opening of the box door.

[0075] After the takeoff action or landing action of the carrier-based aircraft is completed, the aircraft position indicator transmits a completed action signal to the monitoring equipment integrated host, and the monitoring equipment integrated host transmits a closing signal to the winding machine. The winding machine is powered off, and the box door closes under the combined action of its own gravity and the elastic rope. When the box door abuts against the limiting table on the box body, the box door is completely closed.

[0076] In summary, the embodiment of the present invention provides a camera protection box. By setting up the camera protection box, which includes a box body and a box door, when the camera needs to be used, the driving device drives the box door to rotate towards the inner side of the box body, and the driving movable pulley rolls from the front side of the guide rail to the rear side of the guide rail. In this way, while the upper part of the box door rotates towards the inner side of the box body around the movable pulley, it also moves towards the inner side of the box body following the movable pulley. At the same time, the lower part of the box door rotates around the lower front end of the guide rail through the connecting rod, optimizing the force transmission efficiency and ensuring the synchronism and stability of the overall opening and closing process of the box door. When the camera does not need to be used, the driving mechanism is powered off. Under the action of the gravity of the box door and the cooperation of the resetting member, the lower part of the box door rotates around the lower front end of the guide rail through the connecting rod. At the same time, the movable pulley moves from the rear to the front in the guide rail, and the upper part of the box door rotates around the movable pulley to reset, realizing the closing of the box door. Thus, it is possible to open the box door for real-time monitoring during operation, and the resetting member automatically pulls the box door to close in the non-operation state, avoiding the camera being exposed to harsh environments such as high salinity, high humidity, and strong winds at sea for a long time, and significantly extending the service life of the camera.

[0077] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A camera protection box, characterized in that, It includes a box body (1), an opening is provided on the front side wall of the box body (1), and a box door (2) is mounted in a matching manner at the opening, and the top of the box door (2) abuts against the inner side of the front side wall of the box body (1); A guide rail (3) is installed in the box body (1), and the guide rail (3) extends along the front-back direction of the box body (1); A movable pulley (4) is rotatably installed on the upper part of the box door (2), and the movable pulley (4) can roll back and forth along the guide rail (3); A connecting rod (8) is hinged to the lower part of the front end of the guide rail (3), and the connecting rod (8) is hinged to the lower part of the box door (2); A driving device is provided in the box body (1), and the driving device is used to drive the box door (2) to rotate towards the inner side of the box body (1), or drive the movable pulley (4) to roll from the front side of the guide rail (3) to the rear side of the guide rail (3); A reset member is connected to the bottom of the box door (2), and the reset member is connected to the bottom wall of the box body (1).

2. The camera protection box according to claim 1, wherein The driving device includes a winding machine (9) and a fixed pulley (11), the winding machine (9) is arranged on the bottom wall of the box body (1); the fixed pulley (11) is arranged at the rear end of the guide rail (3); A traction rope (10) is provided on the winding machine (9), and the traction rope (10) bypasses the fixed pulley (11) and then is connected to the upper part of the box door (2); After the winding machine (9) is started, it pulls the traction rope (10), so that the traction rope (10) drives the box door (2) to rotate towards the inner side of the box body (1), and drives the movable pulley (4) to roll from the front side of the guide rail (3) to the rear side of the guide rail (3).

3. The camera protection box according to claim 1, wherein The driving device includes a winding machine (9), and the winding machine (9) is arranged at the rear end of the guide rail (3); A traction rope (10) is provided on the winding machine (9), and the traction rope (10) is connected to the upper part of the box door (2).

4. The camera protection box according to claim 2 or 3, wherein A first connecting ear (12) is provided on the upper part of the box door (2); The traction rope (10) is connected to the first connecting ear (12).

5. The camera protection box according to claim 1, wherein The driving device includes an electro-suction electromagnet (19) and a power source; the electro-suction electromagnet (19) is arranged at the rear end of the guide rail (3); After the power source is turned on, the electro-suction electromagnet (19) attracts the movable pulley (4), so that the movable pulley (4) rolls from the front side of the guide rail (3) to the rear side of the guide rail (3), and drives the box door (2) to rotate towards the inner side of the box body (1).

6. The camera protection box according to claim 1, wherein A first connecting rod (5) is fixed to the upper part of the box door (2), and a second connecting rod (6) is fixed to the lower part of the box door (2); The movable pulley (4) is rotatably installed at the rear end of the first connecting rod (5); The front end of the guide rail (3) has a downwardly extending downward rod (7). One end of the connecting rod (8) is hinged to the bottom of the downward rod (7), and the other end of the connecting rod (8) is hinged to the rear end of the second connecting rod (6).

7. A camera protection box according to claim 1, wherein The guide rail (3) slopes upward from the front end to the rear end.

8. A camera protection box according to claim 1, wherein A second connecting ear (15) is provided at the bottom of the box door (2), and a third connecting ear (16) is provided on the bottom wall of the box body (1); The reset member includes an elastic cord (13); One end of the elastic cord (13) is connected to the second connecting ear (15), and the other end of the elastic cord (13) is connected to the third connecting ear (16).

9. A camera protection box according to claim 1, wherein A second connecting ear (15) is provided at the bottom of the box door (2), and a third connecting ear (16) is provided on the bottom wall of the box body (1); The reset member includes a return spring; One end of the return spring is connected to the second connecting ear (15), and the other end of the return spring is connected to the third connecting ear (16).

10. A camera protection box according to claim 1, wherein There are two guide rails (3), and the two guide rails (3) are symmetrically installed on the left and right side walls of the box body (1); One movable pulley (4) is rotatably connected to each of the upper left and right sides of the box door (2), and each movable pulley (4) rolls back and forth along each guide rail (3).

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