Shielding assembly of tower crane camera lens

Abstract

The utility model discloses a shielding assembly for a tower crane camera lens, which relates to the technical field of shielding the tower crane camera lens and comprises a bidirectional screw rod rotatably mounted in a tower crane camera shell, a servo motor fixedly arranged on the right side wall of the shell, and L-shaped guide seats respectively welded on the left outer side wall and the right outer side wall of the shell, a left moving block and a right moving block are in threaded connection with the forward external thread and the reverse external thread respectively; rod pieces are welded to the outer end faces of the two supporting plates, the two connecting plates extend downwards, and shielding plates are fixedly arranged at the extending ends. The two shielding plates respectively penetrate through the two L-shaped guide seats in a sliding manner, the top surfaces of the two shielding plates are in contact with the bottom surface of the shell, the top surfaces of the inner side ends of the two shielding plates are provided with spigots, and the spigots and the lens are arranged in a left-right opposite manner. The beneficial effects of the utility model are that the working intensity of workers is greatly reduced, and the shielding efficiency of the lens is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of covering the lens of a tower crane camera, in particular to a covering assembly for the lens of a tower crane camera. Background Art

[0002] A tower crane camera is installed at the bottom of the boom of a tower crane. The lens of the tower crane camera is used to capture the image directly below it and transmit the captured image to the operating room located at the top of the tower crane. The operator in the operating room can operate the tower crane more safely according to the feedback image. The structure of a tower crane camera used by a certain tower crane is as Figures 1 to 2 shown. The tower crane camera includes a housing 1, an imaging module 2 fixed inside the housing 1 and located on its bottom wall. The signal line of the imaging module 2 penetrates upward through the top wall of the housing 1, and the lens 3 of the imaging module 2 extends downward outside the housing 1. An installation plate 4 is fixed on the top wall of the housing 1.

[0003] Before use, the worker pre - fixes the installation plate 4 to the bottom of the boom of the tower crane by screws, and connects the signal line of the imaging module 2 to the display screen in the operating room. At this time, the lens 3 captures the image directly below it in real time and transmits the captured image to the display screen in real time. The operator in the operating room can operate the tower crane more safely according to the image displayed on the display screen.

[0004] When the tower crane needs to be shut down for a long time, since the lens 3 of this tower crane camera is still exposed outside, after a period of time, a layer of dust gradually adheres to the bottom surface of the lens 3; when the tower crane runs again, because there is still dust adhering to the bottom surface of the lens 3, the image captured by the lens 3 is blurred, and further the image transmitted to the display screen is also blurred.

[0005] To solve the above problems, before shutting down the tower crane for a long time, the worker pre - covers the bottom surface of the lens 3 with tape to cover the lens 3, thereby avoiding dust covering the bottom surface of the lens 3. When the tower crane runs again, the worker tears off the tape from the bottom surface of the lens 3, so that the lens 3 is exposed again, thereby ensuring that the image captured by the lens 3 is clear.

[0006] However, although the tape can cover the lens 3, each time it is necessary to manually cover the tape on the bottom surface of the lens 3, and when the tower crane runs again, the worker also needs to manually tear off the tape from the lens 3; and all these are completed manually, which undoubtedly increases the working intensity of the worker.

[0007] In addition, due to the large bottom surface area of the lens 3 and the width of the tape being smaller than the diameter of the lens 3, workers need to cover multiple tapes on the bottom surface of the lens 3 to completely block the lens 3. This not only increases the working intensity of the workers, but also takes a relatively long time to block the bottom surface of the lens 3, thereby reducing the blocking efficiency of the lens 3.

[0008] Therefore, there is an urgent need for a shielding component that can greatly reduce the working intensity of workers and greatly reduce the shielding efficiency of the lens. Summary of the Utility Model

[0009] The purpose of the present utility model is to overcome the shortcomings of the prior art and provide a shielding component for the tower crane camera lens that can greatly reduce the working intensity of workers and greatly reduce the shielding efficiency of the lens.

[0010] The purpose of the present utility model is achieved through the following technical solutions: A shielding component for a tower crane camera lens, which includes a bidirectional lead screw rotatably installed in the housing of the tower crane camera, a servo motor fixed on the right side wall of the housing, and L-shaped guide seats respectively welded on the left and right outer side walls of the housing. Two bearing seats are fixedly installed on the top wall inside the housing. The left and right ends of the bidirectional lead screw are respectively rotatably installed in the two bearing seats, and the right end of the bidirectional lead screw is connected to the output shaft of the servo motor. The left and right sections of the bidirectional lead screw are respectively provided with a positive external thread and a reverse external thread, and a left moving block and a right moving block are respectively threadedly connected to the positive external thread and the reverse external thread;

[0011] Support plates are welded on the bottom surfaces of the left moving block and the right moving block. Rods are welded on the outer end faces of the two support plates. The two rods respectively slide through the left and right outer side walls of the housing, and connecting plates are fixedly installed on the extended ends. The two connecting plates both extend downward, and shielding plates are fixedly installed on the extended ends;

[0012] The two shielding plates respectively slide through the two L-shaped guide seats. The top surfaces of the two shielding plates are in contact with the bottom surface of the housing. Stoppers are provided on the top surfaces of the inner ends of the two shielding plates, and the stoppers are arranged opposite to the left and right of the lens.

[0013] Two mounting plates are fixedly installed on the top wall of the housing, and the two mounting plates are respectively located on the left and right sides of the housing.

[0014] A threaded hole A matching the positive external thread is provided in the left moving block, and the threaded hole A of the left moving block is threadedly connected to the positive external thread on the bidirectional lead screw.

[0015] A threaded hole B matching the reverse external thread is provided in the right moving block, and the threaded hole B of the right moving block is threadedly connected to the reverse external thread on the bidirectional lead screw.

[0016] A guiding groove is formed in the L-shaped guiding seat, and the shielding plate is slidably matched with the guiding groove.

[0017] A wire passing hole is formed in the top wall of the outer shell, and a sealing sleeve is fixedly arranged in the wire passing hole. The signal wire of the camera module of the tower crane camera penetrates upward through the sealing sleeve and extends to the outside of the outer shell.

[0018] The utility model has the following advantages: greatly reducing the working intensity of workers and greatly reducing the efficiency of shielding the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the tower crane camera;

[0020] Figure 2 is Figure 1 the main sectional schematic diagram of

[0021] Figure 3 is a schematic structural diagram of the utility model;

[0022] Figure 4 is Figure 3 the bottom view of

[0023] Figure 5 is Figure 3 the main sectional schematic diagram of

[0024] Figure 6 is a connection schematic diagram of the rod, the connecting plate and the shielding plate of the utility model;

[0025] Figure 7 is Figure 6 the main sectional schematic diagram of

[0026] Figure 8 is a schematic structural diagram of the L-shaped guiding seat;

[0027] Figure 9 is Figure 8 the main sectional schematic diagram of

[0028] Figure 10 is a schematic diagram of quickly shielding the lens;

[0029] In the figure:

[0030] 1 - outer shell, 2 - camera module, 3 - lens, 4 - mounting plate;

[0031] 5 - bidirectional lead screw, 6 - servo motor, 7 - L-shaped guiding seat, 8 - bearing seat, 9 - left moving block, 10 - right moving block, 11 - support plate, 12 - rod, 13 - connecting plate, 14 - shielding plate, 15 - rabbet, 16 - sealing sleeve, 17 - guiding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following further describes the present utility model in conjunction with the accompanying drawings. The protection scope of the present utility model is not limited to the following:

[0033] As Figures 3 to 9 shown, a shielding assembly for a tower crane camera lens includes a bidirectional lead screw 5 rotatably installed in the housing 1 of the tower crane camera, a servo motor 6 fixed on the right side wall of the housing 1, and L-shaped guide seats 7 respectively welded on the left and right outer side walls of the housing 1. Two bearing seats 8 are fixedly installed on the top wall inside the housing 1. The left and right ends of the bidirectional lead screw 5 are respectively rotatably installed in the two bearing seats 8, and the right end of the bidirectional lead screw 5 is connected to the output shaft of the servo motor 6. Positive external threads and reverse external threads are respectively arranged on the left and right sections of the bidirectional lead screw 5, and a left moving block 9 and a right moving block 10 are respectively threadedly connected to the positive external thread and the reverse external thread; a threaded hole A matching with the positive external thread is opened in the left moving block 9, and the threaded hole A of the left moving block 9 is threadedly connected to the positive external thread on the bidirectional lead screw 5. A threaded hole B matching with the reverse external thread is opened in the right moving block 10, and the threaded hole B of the right moving block 10 is threadedly connected to the reverse external thread on the bidirectional lead screw 5.

[0034] Support plates 11 are respectively welded on the bottom surfaces of the left moving block 9 and the right moving block 10. Rod members 12 are respectively welded on the outer end faces of the two support plates 11. The two rod members 12 respectively slide through the left and right outer side walls of the housing 1, and connecting plates 13 are fixedly installed on the extending ends. The two connecting plates 13 both extend downward, and shielding plates 14 are fixedly installed on the extending ends;

[0035] The two shielding plates 14 respectively slide through the two L-shaped guide seats 7. A guide groove 17 is opened in the L-shaped guide seat 7, and the shielding plate 14 is slidably matched with the guide groove 17. The top surfaces of the two shielding plates 14 are both in contact with the bottom surface of the housing 1. Stopping mouths 15 are respectively opened on the top surfaces of the inner ends of the two shielding plates 14, and the stopping mouths 15 are arranged opposite to the left and right of the lens 3.

[0036] Two mounting plates 4 are fixedly installed on the top wall of the housing 1, and the two mounting plates 4 are respectively located on the left and right sides of the housing 1. A wire passing hole is opened in the top wall of the housing 1, and a sealing sleeve 16 is fixedly installed in the wire passing hole. The signal line of the camera module 2 of the tower crane camera upward penetrates through the sealing sleeve 16 and extends outside the housing 1.

[0037] Before use, the worker pre-fixes the mounting plate 4 to the bottom of the cantilever of the tower crane by screws; then the worker connects the power cord of the servo motor 6 to the controller in the operating room; then the worker connects the signal line of the camera module 2 to the display screen in the operating room. At this time, the lens 3 captures the picture directly below it in real time and transmits the captured picture to the display screen in real time. The operator in the operating room can operate the tower crane more safely according to the picture displayed on the display screen.

[0038] When the tower crane needs to be shut down for a long time, to prevent a layer of dust from covering the bottom surface of the lens 3 of the tower crane camera, the specific operation steps for the worker to cover the lens 3 are as follows:

[0039] The worker controls the servo motor 6 to start. The output shaft of the servo motor 6 drives the bidirectional lead screw 5 to rotate around its own axis. The left moving block 9 on the bidirectional lead screw 5 moves linearly to the right along the length direction of the bidirectional lead screw 5. At the same time, the right moving block 10 on the bidirectional lead screw 5 moves linearly to the left along the length direction of the bidirectional lead screw 5. Both moving blocks drive the support plate 11 to move inward. The support plate 11 drives the rod 12 to move inward. The rod 12 drives the connecting plate 13 to move inward synchronously. The connecting plate 13 drives the shielding plate 14 to move inward relative to the stationary L-shaped guide seat 7 synchronously. The stops 15 of the two shielding plates 14 both move towards the direction of the lens 3.

[0040] When the servo motor 6 runs for the set time, the worker in the tower crane operating room controls the servo motor 6 to shut down through the controller. The inner end faces of the two shielding plates 14 abut against each other, and the lens 3 is just enclosed within the stops 15 of the two shielding plates 14, as Figure 10 shown, thus finally realizing quickly covering the lens 3, and further avoiding a large amount of dust covering the top surface of the lens 3 due to the long-term shutdown of the tower crane.

[0041] It can be seen from this that compared with the method of the worker covering the lens 3 with tape, there is no need for the worker to cover multiple tapes on the bottom surface of the lens 3 to cover the lens 3. Instead, only by controlling the servo motor 6 of the shielding component to start, the lens 3 can enter between the stops 15 of the two shielding plates 14, and then quickly cover the lens 3. This not only greatly reduces the labor intensity of the worker, but also realizes quickly covering the lens 3 in a short time, and further greatly improves the shielding efficiency of the lens 3.

[0042] When the tower crane runs again, the operation steps to expose the lens 3 again are as follows:

[0043] The worker controls the reverse rotation of the servo motor 6. The output shaft of the servo motor 6 drives the bidirectional lead screw 5 to rotate in reverse. The left moving block 9 moves linearly to the left. At the same time, the right moving block 10 moves to the right, thereby driving the two shutter plates 14 to move outward. The shutter plates 14 move away from the lens 3. When the servo motor 6 runs for the set time, the worker in the tower crane cab controls the servo motor 6 to turn off through the controller, so as to expose the lens 3 again. The lens 3 can then capture the image directly below it in real time.

Claims

1. A shielding component for a tower crane camera lens, characterized in that: It comprises a bidirectional screw rod (5) rotatably mounted in a tower crane camera housing (1), a servo motor (6) fixedly mounted on the right side wall of the housing (1), and an L-shaped guide seat (7) respectively welded on the left and right outer side walls of the housing (1); two bearing seats (8) are fixedly mounted in the housing (1) and on its top wall; the left and right ends of the bidirectional screw rod (5) are respectively rotatably mounted in the two bearing seats (8); the right end of the bidirectional screw rod (5) is connected to the output shaft of the servo motor (6); the left and right sections of the bidirectional screw rod (5) are respectively provided with a forward external thread and a reverse external thread; the forward external thread and the reverse external thread are respectively threadedly connected with a left moving block (9) and a right moving block (10); A support plate (11) is welded to the bottom surface of the left moving block (9) and the right moving block (10), and a rod (12) is welded to the outer end surface of the two support plates (11). The two rods (12) slide through the left and right outer side walls of the housing (1) respectively, and a connecting plate (13) is fixedly provided on the extended end. The two connecting plates (13) extend downward, and a shielding plate (14) is fixedly provided on the extended end. The two shielding plates (14) slide through the two L-shaped guide seats (7) respectively, the top surfaces of the two shielding plates (14) are in contact with the bottom surface of the housing (1), and stoppers (15) are provided on the top surfaces of the inner ends of the two shielding plates (14), and the stoppers (15) are arranged opposite to the lens (3) on the left and right.

2. The shielding assembly for a tower crane camera lens according to claim 1, characterized in that: Two mounting plates (4) are fixedly arranged on the top wall of the housing (1), and the two mounting plates (4) are respectively located on the left and right sides of the housing (1).

3. The shielding assembly for a tower crane camera lens according to claim 1, characterized in that: The left moving block (9) is provided with a threaded hole A matching the positive external thread, and the threaded hole A of the left moving block (9) is threadedly connected to the positive external thread on the bidirectional screw rod (5).

4. The shielding assembly for a tower crane camera lens according to claim 1, characterized in that: The right moving block (10) is provided with a threaded hole B matching the reverse external thread, and the threaded hole B of the right moving block (10) is threadedly connected to the reverse external thread on the bidirectional screw rod (5).

5. The shielding assembly for a tower crane camera lens according to claim 1, characterized in that: A guide groove (17) is provided in the L-shaped guide seat (7), and the shielding plate (14) is slidably engaged with the guide groove (17).

6. The shielding assembly for a tower crane camera lens according to claim 1, characterized in that: A wire passing hole is provided on the top wall of the housing (1), a sealing sleeve (16) is fixedly arranged in the wire passing hole, and a signal line of the camera module (2) of the tower crane camera passes through the sealing sleeve (16) upwards and extends to the outside of the housing (1).

Images