An explosion-proof pan / tilt camera with automatic spray dust removal system

Abstract

The present application relates to an explosion-proof pan-tilt camera with an automatic spray dust removal system, and relates to the technical field of video surveillance equipment. The camera includes a camera body, including a pan-tilt base and a camera barrel, and the camera barrel is installed on the pan-tilt base; a dust removal mechanism includes a dust removal scraper, and the dust removal scraper is arranged at the camera end of the camera barrel, and the dust removal scraper fits the camera end of the camera barrel, and the camera barrel is provided with a dust removal drive member for driving the dust removal scraper to rotate; a spray mechanism includes a spray head and a spray box, and the spray head is connected to the spray box through a pipeline, and the spray head is arranged on the pan-tilt base, and the spray head is arranged toward the camera barrel; and the pan-tilt base can drive the camera end of the camera barrel to face the spray head. The present application can improve the self-cleaning ability of the explosion-proof pan-tilt camera and the dust removal effect on the camera barrel through the coordinated arrangement of the dust removal scraper and the spray head, thereby reducing the influence of dust on the clarity of the camera shooting picture.

Description

Technical Field

[0001] The present application relates to the technical field of video surveillance equipment, and in particular to an explosion-proof pan / tilt camera with an automatic spray dust removal system. Background Art

[0002] A PTZ camera is a camera mounted on a rotatable PTZ that can rotate horizontally and vertically to provide a wider viewing angle. This camera is widely used in surveillance areas such as shopping malls, banks, and traffic monitoring.

[0003] For flammable and explosive places such as petrochemical coal mines where large amounts of flammable gases, dust or other flammable mixtures are stored, explosion-proof pan-tilt cameras are used in monitoring equipment because these places are highly flammable and explosive.

[0004] However, when the explosion-proof pan-tilt camera is located in places such as petrochemical coal mines where a large amount of dust is stored, a lot of dust will adhere to the camera, making the picture taken by the camera unclear or even unable to take pictures. Based on the above problems, there is a pan-tilt integrated machine, including a pan-tilt base and a camera barrel installed on the pan-tilt base, a lens is installed at one end of the camera barrel, a motor is fixed on the outer wall of the camera barrel, the driving shaft of the motor is parallel to the axis of the camera barrel, a connecting piece is relatively fixed on the driving shaft of the motor, and a dust removal scraper is installed on the end of the connecting piece extending laterally to the motor driving shaft and away from the motor driving shaft, and the dust removal scraper fits the camera barrel. By setting the dust removal scraper, the camera barrel can be scraped, which can remove the dust attached to the camera barrel and ensure the clarity of the picture taken by the camera.

[0005] Regarding the above-mentioned related technologies, when the dust is sticky, the dust has a strong adhesion force, and it is difficult to cleanly scrape the dust attached to the camera barrel by relying solely on the dust scraper, which still affects the clarity of the picture taken by the camera. Summary of the invention

[0006] The present application provides an explosion-proof pan-tilt camera with an automatic spray dust removal system, the purpose of which is to improve the self-cleaning ability of the explosion-proof pan-tilt camera, improve the dust removal effect on the camera barrel, and thereby reduce the impact of dust on the clarity of the camera's shooting images.

[0007] The explosion-proof pan / tilt camera with automatic spray dust removal system provided in this application adopts the following technical solution:

[0008] An explosion-proof pan-tilt camera with an automatic spray dust removal system comprises: a camera body, comprising a pan-tilt base and a camera barrel, wherein the camera barrel is mounted on the pan-tilt base; a dust removal mechanism, comprising a dust removal scraper, wherein the dust removal scraper is arranged at the camera end of the camera barrel and the dust removal scraper is in contact with the camera end of the camera barrel, and the camera barrel is provided with a dust removal drive member for driving the dust removal scraper to rotate; a spray mechanism, comprising a spray head and a spray box, wherein the spray head is connected to the spray box through a pipeline, the spray head is arranged on the pan-tilt base, and the spray head is arranged toward the camera barrel; and the pan-tilt base can drive the camera end of the camera barrel to face the spray head.

[0009] By adopting the above technical solution, firstly, the setting of the pan-tilt base and the camera tube can realize the real-time monitoring function of the explosion-proof pan-tilt camera. Secondly, the coordination of the dust removal scraper and the dust removal drive member in the dust removal mechanism and the coordination of the spray head and the spray box in the spray mechanism, when the clarity of the monitoring video shot by the camera tube is affected, the pan-tilt base drives the camera tube to rotate and makes the camera end of the camera tube align with the spray head. At this time, the spray head sprays water and the dust removal scraper rotates at the same time, which can remove the dust attached to the camera end of the corresponding camera tube, so that the clarity of the monitoring picture shot by the camera tube returns to normal.

[0010] Optionally, it also includes a detachable lens mechanism, which includes a replacement lens, and the replacement lens is arranged at the camera end of the camera barrel. The replacement lens is coaxially arranged with the camera barrel, and the replacement lens is detachably connected to the camera barrel; the dust scraper is located on the side of the replacement lens away from the camera barrel, and the dust scraper is in contact with the replacement lens.

[0011] By adopting the above technical solution, the replacement lens can protect the camera end of the camera barrel, prevent dust from adhering to the camera end of the camera barrel, and the dust scraper and the spray water only need to contact the replacement lens, so the service life of the camera barrel can be improved. At the same time, since the replacement lens is detachably connected to the camera barrel, it is easy to replace the replacement lens, so that the clarity of the monitoring picture taken by the camera can be quickly restored.

[0012] Optionally, an electromagnet is provided at the camera end of the camera tube, a magnetic component is provided on the replacement lens, and the electromagnet and the magnetic component are attracted along the axial direction of the replacement lens.

[0013] By adopting the above technical solution, when the electromagnet is energized, the electromagnet attracts the magnetic part, and the replacement lens is installed on the corresponding camera barrel; when the electromagnet is de-energized or the electromagnet is reversely energized, the electromagnet and the corresponding magnetic part are separated, and the replacement lens is separated from the corresponding camera barrel. Therefore, the coordination of the electromagnet and the magnetic part realizes the detachable connection between the replacement lens and the camera barrel.

[0014] Optionally, the dust removal scraper is detachably connected to the driving shaft of the dust removal drive member.

[0015] By adopting the above technical solution, the dust scraper is detachably connected to the output shaft of the dust removal drive member, so that when removing the replacement lens, the dust scraper can be removed first, thereby reducing the interference of the dust scraper on the replacement lens and facilitating the replacement of the replacement lens.

[0016] Optionally, the driving shaft of the dust removal drive member is coaxially connected with a sleeve, and one end of the dust removal scraper is connected with an insertion rod, the insertion rod is coaxially arranged with the sleeve, and the insertion rod is plugged into and cooperated with the sleeve along its own axial direction; when the dust removal drive member drives the sleeve to rotate, the sleeve drives the insertion rod to rotate.

[0017] By adopting the above technical solution, the sleeve and the insertion rod are arranged in cooperation, and when the sleeve and the insertion rod are inserted, the dust removal drive can drive the dust removal scraper to move. When the insertion rod is pulled out of the corresponding sleeve, the dust removal drive is separated from the corresponding dust removal scraper. Therefore, the sleeve and the insertion rod are arranged in cooperation, and the dust removal scraper and the output shaft of the dust removal drive are detachably connected.

[0018] Optionally, a mounting ring is sleeved on the outer side of the replacement lens, a mounting hole is penetrated through the mounting ring, the insertion rod is plugged into the mounting hole, and the insertion rod is rotatably connected to the inner wall of the mounting hole.

[0019] By adopting the above technical solution and setting the mounting ring, the connection between the replacement lens and the dust removal scraper is realized, which makes it easy to remove the replacement lens and the corresponding dust removal scraper from the corresponding camera barrel together.

[0020] Optionally, it also includes an installation box, the pan-tilt base is arranged on the installation box, and the installation box is provided with a lifting drive component for driving the pan-tilt base to rise and fall in a vertical direction; a replacement hole is opened through the upper side wall of the installation box, and when the pan-tilt base drives the camera barrel to rotate to vertical, the camera barrel and the replacement hole are arranged opposite to each other in the vertical direction, and the lifting drive component can drive the camera barrel to plug and cooperate with the replacement hole; a replacement plate is arranged in the installation box, and a replacement groove capable of loading the replacement lens is opened on the upper side of the replacement plate, and the replacement groove and the replacement hole are arranged opposite to each other in the vertical direction.

[0021] By adopting the above technical solution, the installation box and the lifting drive member are arranged in conjunction with the pan / tilt base, so that the camera barrel can be plugged into and matched with the replacement hole. After the camera barrel is plugged into the corresponding replacement hole, the corresponding replacement lens on the camera barrel can automatically detach from the camera barrel and fall into the corresponding replacement slot, which facilitates the automatic disassembly of the replacement lens on the camera barrel.

[0022] Optionally, two replacement grooves are provided, and the two replacement grooves are spaced apart along the length direction of the replacement plate. There is one replacement groove arranged directly opposite the replacement hole, and a replacement driving member is provided in the installation box to drive the replacement plate to move along its own length direction.

[0023] By adopting the above technical solution, two replacement slots are provided, and a replacement drive member is also provided inside the installation, so that when one replacement slot is equipped with a removed replacement lens, the other replacement slot can be moved to be connected with the replacement hole, thereby preparing for the next removal of the replacement lens.

[0024] Optionally, a clearance hole is formed through the bottom of the replacement slot.

[0025] By adopting the above technical solution, the opening of the clearance hole can, on the one hand, provide clearance space for the dust removal scraper, so that the replacement lens can be more stably loaded into the corresponding replacement slot. On the other hand, when the clearance hole is connected to the corresponding replacement slot, the spray head cleans the camera tube, and the cleaned sewage will flow into the replacement slot through the replacement hole, and then flow into the lower side of the replacement plate through the clearance hole, so that the sewage is stored in the installation box, realizing the sewage collection function.

[0026] Optionally, a sewage filter box is further provided in the installation box, the sewage filter box is located at the lower side of the replacement plate, the opening of the sewage filter box is arranged toward the replacement plate, and the give way hole is connected with the opening of the sewage filter box; a filter plate is provided in the sewage filter box, the filter plate is spaced apart from the bottom plate of the sewage filter box in the vertical direction; a return pipe is provided on the sewage filter box, the return pipe is located at the lower side of the filter plate in the vertical direction, one end of the return pipe is connected with the sewage filter box, and the other end is connected with the spray box.

[0027] By adopting the above technical solution, the sewage filter box can collect the sewage for cleaning and replacing lenses. The filter plate can separate the dust in the sewage. The return pipe can return the clean cleaning liquid after separation to the spray box. Such a setting can realize the recycling of the cleaning liquid and reduce the waste of the cleaning liquid.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. This application can improve the self-cleaning ability of the explosion-proof pan-tilt camera and the dust removal effect on the camera barrel through the coordinated setting of the dust removal scraper and the sprinkler head, thereby reducing the impact of dust on the clarity of the camera's shooting picture.

[0030] 2. The present application can protect the camera barrel by replacing the lens; and by replacing the lens, the clarity of the surveillance image taken by the camera can be quickly restored.

[0031] 3. The present application can recycle the wastewater used to clean and replace lenses by setting up a wastewater filter box, and filter the recycled wastewater and return it to the spray box, thereby realizing the recycling of the cleaning liquid and reducing the waste of the cleaning liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the explosion-proof pan-tilt camera of Example 1 of the present application.

[0033] Figure 2 It is a schematic diagram of the overall structure of the explosion-proof pan-tilt camera of Example 2 of the present application.

[0034] Figure 3 It is a schematic diagram of the exploded structure of the detachable lens mechanism of Example 2 of the present application.

[0035] Figure 4 It is a schematic diagram of the overall structure of the explosion-proof pan-tilt camera of Example 3 of the present application.

[0036] Figure 5 It is a schematic diagram of the cross-sectional structure of the explosion-proof pan-tilt camera of Example 3 of the present application.

[0037] Figure 6 yes Figure 5 Schematic diagram of the local enlarged structure of part A.

[0038] Figure 7 It is a schematic diagram of the cross-sectional structure of the sealing box of Example 3 of the present application.

[0039] In the figure, 1, camera body; 11, pan / tilt base; 12, camera tube; 2, dust removal mechanism; 21, dust removal scraper; 22, dust removal drive; 3, spray mechanism; 31, spray head; 32, spray box; 33, water supply pipe; 34, cleaning nozzle; 4, detachable lens mechanism; 41, replacement lens; 42, quick release assembly; 421, electromagnet; 422, magnetic part; 43, connecting assembly; 431, sleeve; 432, plug rod; 44, mounting ring; 441, mounting ring groove ;442, installation hole; 5, installation box; 51, lifting hole; 52, lifting tube; 53, lifting drive; 54, replacement hole; 6, replacement mechanism; 61, sealing box; 611, through hole; 612, long hole; 613, first station; 614, second station; 615, third station; 62, replacement plate; 621, replacement slot; 622, make way hole; 63, replacement drive; 64, installation drive; 7, sewage filter box; 71, filter plate; 72, return pipe. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1 -Attached Figure 7 , further details of this application are given.

[0041] Example 1: An explosion-proof pan / tilt camera with an automatic spray dust removal system, referring to Figure 1 , including a camera body 1, a dust removal mechanism 2 and a spray mechanism 3.

[0042] Reference Figure 1 The camera body 1 includes a pan-tilt base 11, which is arranged in a vertical direction, and the pan-tilt base 11 is connected to camera tubes 12 on both sides of the same radial direction of the pan-tilt base 11. The pan-tilt base 11 can drive the two camera tubes 12 to rotate synchronously in the horizontal plane and the vertical plane, so as to realize the monitoring function.

[0043] Reference Figure 1 There are two dust removal mechanisms 2, and the dust removal mechanisms 2 and the camera barrels 12 are arranged in a one-to-one correspondence.

[0044] Reference Figure 1 The dust removal mechanism 2 includes a dust removal scraper 21, which is located at the corresponding camera end of the camera barrel 12, and the dust removal scraper 21 is in contact with the corresponding camera end of the camera barrel 12. A dust removal drive 22 is provided on the outside of the camera barrel 12, and the dust removal drive 22 adopts a motor, and the drive shaft of the dust removal drive 22 is connected to one end of the dust removal scraper 21 in the length direction. Driven by the dust removal drive 22, the dust removal scraper 21 rotates at the camera end of the corresponding camera barrel 12, and can scrape off the dust on the camera end of the camera barrel 12, and restore the clarity of the monitoring picture taken by the camera barrel 12.

[0045] Reference Figure 1The spray mechanism 3 includes a spray head 31 and a spray box 32. The spray box 32 is arranged on one side of the pan / tilt base 11. A water supply pipe 33 is arranged between the spray boxes 32. The two ends of the water supply pipe 33 are respectively connected to the spray head 31 and the spray box 32. A water pump is arranged in the spray box 32. One end of the water supply pipe 33 is connected to the water pump. The spray head 31 is arranged on the side wall of the pan / tilt base 11, and the spray head 31 is arranged vertically upward.

[0046] When the camera barrel 12 needs to be cleaned, the pan-tilt base 11 drives the two camera barrels 12 to rotate in the vertical plane. When the camera barrel 12 is in a vertical state, the camera end of the camera barrel 12 is set vertically downward, and the pan-tilt base 11 continues to drive the two camera barrels 12 to rotate in the horizontal plane, so that the spray head 31 can be arranged in a vertical direction opposite to the camera ends of the two camera barrels 12 in sequence. When the spray head 31 sprays water, the corresponding dust removal scraper 21 works, which can effectively remove the dust attached to the camera end of the corresponding camera barrel 12, improve the dust removal effect, and facilitate the restoration of the clarity of the surveillance video shot by the camera barrel 12.

[0047] In this embodiment, the explosion-proof pan / tilt camera is an explosion-proof structure, and the outer sides of each structure are covered with an explosion-proof shell.

[0048] The implementation principle of the embodiment of the present application is: when the clarity of the surveillance video shot by the camera tube 12 is affected, the pan / tilt base 11 drives the camera tube 12 to rotate, and makes the camera end of the camera tube 12 align with the spray head 31. At this time, the spray head 31 sprays water, and the dust removal scraper 21 rotates at the same time, which can remove the dust attached to the camera end of the corresponding camera tube 12, so that the cleanliness of the surveillance picture shot by the camera tube 12 returns to normal.

[0049] Example 2: An explosion-proof pan / tilt camera with an automatic spray dust removal system, referring to Figure 2 The difference between this embodiment and embodiment 1 is that the explosion-proof pan-tilt camera further includes a detachable lens mechanism 4 , which is arranged in a one-to-one correspondence with the camera barrel 12 , and the detachable lens mechanism 4 is arranged at the camera end of the corresponding camera barrel 12 .

[0050] Reference Figure 2 and Figure 3 The detachable lens mechanism 4 includes a replacement lens 41, which is located at the camera end of the corresponding camera barrel 12, and the replacement lens 41 is coaxially arranged with the corresponding camera barrel 12, and the replacement lens 41 is detachably connected with the corresponding camera barrel 12. The replacement lens 41 is located between the corresponding dust scraper 21 and the camera barrel 12, and the dust scraper 21 is in contact with the corresponding replacement lens 41. The setting of the replacement lens 41 can protect the camera end of the camera barrel 12, and dust will only adhere to the replacement lens 41, and the dust scraper 21 and the spray water will only contact the replacement lens 41, which can protect the camera barrel 12.

[0051] Reference Figure 2 and Figure 3 The detachable lens mechanism 4 further includes a quick release assembly 42, which includes a plurality of electromagnets 421, which are all arranged at the camera end of the camera barrel 12, and the plurality of electromagnets 421 are evenly spaced along the circumference of the camera barrel 12. The quick release assembly 42 further includes a magnetic member 422, which is an annular structure, and is made of a magnet or an iron-containing material or other material that can be attracted by the electromagnet 421. The magnetic member 422 is coaxially arranged with the replacement lens 41, and the magnetic member 422 is sleeved on the outside of the replacement lens 41. The magnetic member 422 and the plurality of electromagnets 421 are attracted along the axial direction of the replacement lens 41.

[0052] When the electromagnet 421 is energized, the electromagnet 421 attracts the magnetic part 422, and the replacement lens 41 is installed on the corresponding camera barrel 12; when the electromagnet 421 is de-energized or the electromagnet 421 is reversely energized, the electromagnet 421 is separated from the corresponding magnetic part 422, and the replacement lens 41 is separated from the corresponding camera barrel 12. Therefore, the provision of the quick-release assembly 42 facilitates the installation and removal of the replacement lens 41, so that when the replacement lens 41 cannot be cleaned, a new replacement lens 41 can be directly replaced, which can quickly restore the clarity of the surveillance video captured by the camera barrel 12.

[0053] Reference Figure 2 and Figure 3 The detachable lens mechanism 4 further includes a mounting ring 44, which is sleeved on the outer side of the replacement lens 41, and the mounting ring 44 is engaged with the corresponding replacement lens 41. The mounting ring 44 has a mounting ring groove 441 on one side facing the corresponding camera barrel 12, the mounting ring groove 441 is coaxially arranged with the replacement lens 41, and the magnetic member 422 is inserted into the corresponding mounting ring groove 441. The installation of the mounting ring 44 can protect the replacement lens 41, and at the same time realize the installation of the replacement lens 41 and the corresponding magnetic member 422.

[0054] Reference Figure 2 and Figure 3The dust scraper 21 is detachably connected to the driving shaft of the dust removal drive 22, and a connecting assembly 43 is provided between the dust scraper 21 and the driving shaft of the dust removal drive 22. The connecting assembly 43 includes a sleeve 431 and a plug rod 432. The sleeve 431 and the plug rod 432 are both arranged along the axial direction of the camera tube 12. The sleeve 431 is coaxially connected to the driving shaft of the dust removal drive 22. One end of the sleeve 431 is plugged with the plug rod 432, and one end of the plug rod 432 away from the sleeve 431 is fixedly connected to the dust scraper 21. The plug rod 432 has a rectangular cross section, and the shape of the sleeve 431 matches the shape of the plug rod 432. When the dust removal drive 22 drives the sleeve 431 to rotate, the sleeve 431 can drive the plug rod 432 to rotate synchronously, so that the dust scraper 21 can be driven.

[0055] Reference Figure 2 and Figure 3 The mounting ring 44 is provided with a mounting hole 442, and the plug rod 432 is plugged into the mounting hole 442, and the plug rod 432 is rotatably connected to the inner wall of the mounting hole 442. The mounting ring 44 realizes the connection between the plug rod 432 and the replacement lens 41, so when the replacement lens 41 is disassembled, the plug rod 432 can be synchronously withdrawn from the corresponding sleeve 431, so that the corresponding dust scraper 21 can be synchronously disassembled, so as to realize the rapid replacement of the replacement lens 41 and the dust scraper 21.

[0056] The implementation principle of the embodiment of the present application is as follows: a replacement lens 41 is installed at the camera end of the camera barrel 12, and the replacement lens 41 can protect the camera end of the camera barrel 12 to prevent dust from adhering to the camera end of the camera barrel 12, so that the dust scraper 21 and the spray water only need to contact the replacement lens 41, so that the service life of the camera barrel 12 can be improved. In addition, due to the setting of the detachable lens mechanism 4, the replacement lens 41 and the dust scraper 21 on the camera barrel 12 can be disassembled and assembled synchronously, which makes it easy to replace a new replacement lens 41 and a dust scraper 21 on the camera barrel 12, so that the clarity of the picture taken by the camera barrel 12 can be quickly restored.

[0057] Example 3, an explosion-proof pan / tilt camera with an automatic spray dust removal system, referring to Figure 4 and Figure 5The difference between this embodiment and embodiment 2 is that: the explosion-proof pan-tilt camera also includes an installation box 5, a lifting hole 51 is opened on the installation box 5, a lifting tube 52 is arranged in the installation box 5, the lifting tube 52 is coaxially connected with the lifting hole 51, and the upper end of the lifting tube 52 is connected to the inner top wall of the installation box 5. The pan-tilt base 11 is inserted in the lifting tube 52, and the pan-tilt base 11 is slidably connected with the inner wall of the lifting tube 52 and the inner wall of the lifting hole 51 in the vertical direction. A lifting drive 53 is arranged in the lifting tube 52, and the lifting drive 53 adopts a linear push rod or a motor or a cylinder. The lifting drive 53 is arranged in the vertical direction, and the driving shaft of the lifting drive 53 is connected to the pan-tilt base 11. Driven by the lifting drive 53, the pan-tilt base 11 can drive the two camera tubes 12 to move up and down in the vertical direction.

[0058] Reference Figure 4 and Figure 5 Two replacement holes 54 are formed on the upper side of the mounting box 5, and the two replacement holes 54 are arranged at intervals on both sides of the pan / tilt base 11 along the same radial direction of the pan / tilt base 11. When the pan / tilt base 11 drives the camera barrels 12 to rotate vertically, the two camera barrels 12 are arranged in a one-to-one correspondence with the two replacement holes 54. Under the drive of the lifting drive member 53, the camera barrels 12 are plugged into the corresponding replacement holes 54, so that the camera ends of the two camera barrels 12 can be inserted into the corresponding replacement holes 54 at the same time.

[0059] Reference Figure 4 and Figure 5 Two replacement mechanisms 6 are arranged in the installation box 5, and the two replacement mechanisms 6 are arranged in a one-to-one correspondence with the two replacement holes 54.

[0060] Reference Figure 4 and Figure 5 The replacement mechanism 6 includes a sealing box 61 , and a through hole 611 is opened on the upper side of the sealing box 61 . The through hole 611 is arranged opposite to the corresponding replacement hole 54 in the vertical direction.

[0061] Reference Figure 5 and Figure 6 A long hole 612 is opened at the lower side of the sealing box 61 , the length direction of the long hole 612 is arranged along the length direction of the sealing box 61 , and the long hole 612 and the through hole 611 are arranged opposite to each other in the vertical direction.

[0062] Reference Figure 6 and Figure 7 The sealing box 61 is sequentially arranged at a first station 613 , a second station 614 and a third station 615 along its length direction, and the through hole 611 is located at the second station 614 .

[0063] Reference Figure 6 and Figure 7The replacement mechanism 6 also includes a replacement plate 62, which is located in the sealing box 61, and the length direction of the replacement plate 62 is arranged along the length direction of the sealing box 61. Two replacement grooves 621 are provided on the upper side of the replacement plate 62, and the two replacement grooves 621 are arranged at intervals along the length direction of the replacement plate 62. One of the two replacement grooves 621 is located in the second station 614, and the other replacement groove 621 is located in the first station 613 or the third station 615, and the replacement groove 621 located in the second station 614 is coaxially connected with the corresponding through hole 611. In this embodiment, one replacement groove 621 is located in the second station 614, and the other replacement groove 621 is located in the first station 613.

[0064] After the camera barrel 12 is inserted into the corresponding replacement hole 54, the electromagnet 421 on the camera barrel 12 loses power or is reversely energized. At this time, the replacement lens 41 and the dust scraper 21 on the camera barrel 12 will fall into the replacement groove 621 at the second workstation 614, which enables the replacement plate 62 to collect the automatically removed replacement lens 41 and the dust scraper 21.

[0065] Reference Figure 6 and Figure 7 The replacement plate 62 is slidably connected to the inner wall of the sealing box 61 along its length direction. A replacement driving member 63 is arranged in the sealing box 61. The replacement driving member 63 adopts a linear push rod or a cylinder or an oil cylinder. The driving shaft of the replacement driving member 63 is arranged along the length direction of the replacement plate 62, and the driving shaft of the replacement driving member 63 is connected to the replacement plate 62.

[0066] Under the drive of the replacement driving member 63, one replacement slot 621 can be switched between the first station 613 and the second station 614, and the other replacement slot 621 can be correspondingly switched between the second station 614 and the third station 615. Therefore, the two replacement slots 621 can be moved to the second station 614 in sequence, so that each replacement slot 621 can be arranged directly opposite to the camera.

[0067] Reference Figure 6 and Figure 7 The bottom of the replacement groove 621 is provided with a clearance hole 622, which is connected to the long hole 612, and the diameter of the clearance hole 622 is equal to the width of the long hole 612. The opening of the clearance hole 622 can provide clearance space for the dust removal scraper 21, so that the removed replacement lens 41 can be more stable in the corresponding replacement groove 621, reducing the possibility of shaking or displacement.

[0068] Reference Figure 6 and Figure 7, the displacement hole 622 is coaxially arranged with the corresponding replacement groove 621. A mounting drive member 64 is arranged at the lower side of the sealing box 61, and the mounting drive member 64 is arranged in the vertical direction. The mounting drive member 64 is located at the second station 614 along the length direction of the sealing box 61. The driving shaft of the mounting drive member 64 is spaced apart from the lower side of the sealing box 61, and the driving shaft of the mounting drive member 64 is coaxially arranged with the corresponding through hole 611.

[0069] In this embodiment, refer to Figure 6 and Figure 7 , of the two replacement slots 621, the replacement slot 621 at the second station 614 is empty, and the other replacement slot 621 is equipped with a new replacement lens 41. After the camera barrel 12 removes the replacement lens 41 and installs it into the replacement slot 621 at the second station 614, the replacement drive member 63 pushes the replacement plate 62 to move, and the replacement slot 621 equipped with the new replacement lens 41 moves to the second station 614, and then, driven by the installation drive member 64, the drive shaft of the installation drive member 64 rises and is inserted into the clearance hole 622 at the second station 614, and the drive shaft of the installation drive member 64 resists the new replacement lens 41 and moves toward the camera barrel 12. When the new replacement lens 41 approaches the camera barrel 12, the electromagnet 421 on the camera barrel 12 is energized, and the camera barrel 12 automatically attracts the new replacement lens 41, so that the replacement of the replacement lens 41 on the camera barrel 12 can be realized.

[0070] Reference Figure 5 and Figure 6 The spray mechanism 3 also includes two cleaning nozzles 34. The two cleaning nozzles 34 are both located in the installation box 5 and are connected to the spray box 32 through corresponding pipes, which enables the two cleaning nozzles 34 to spray cleaning liquid.

[0071] Reference Figure 6 and Figure 7 , two cleaning nozzles 34 are located at the lower side of the replacement plate 62 and are both arranged toward the replacement plate 62. The two cleaning nozzles 34 are arranged at intervals on both sides of the corresponding installation drive member 64 along the length direction of the replacement plate 62. One cleaning nozzle 34 is located at the first station 613 along the length direction of the sealing box 61, and the other cleaning nozzle 34 is located at the second station 614. When the replacement drive member 63 drives the replacement plate 62 to move along its own length direction, the clearance hole 622 at the first station 613 or the third station 615 is arranged opposite to the corresponding cleaning nozzle 34.

[0072] After the replacement lens 41 is removed from the camera barrel 12, after the replacement driving member 63 drives the replacement plate 62 to move, the removed replacement lens 41 will move to the first station 613 or the third station 615 of the sealing box 61, and the corresponding cleaning nozzle 34 will face the removed replacement lens 41, so that the removed replacement lens 41 can be cleaned.

[0073] Reference Figure 5 and Figure 6 A sewage filter box 7 is also provided at the bottom of the installation box 5, the opening of the sewage filter box 7 is located at the upper side of the sewage filter box 7, and the long hole 612 of the sealing box 61 is connected to the opening of the sewage filter box 7. The cleaning water after cleaning the replacement lens 41 can flow back to the sewage filter box 7 to collect the sewage.

[0074] Reference Figure 4 and Figure 5 A filter plate 71 is provided in the sewage filter box 7. The filter plate 71 adopts a filter mesh plate. The outer wall of the filter plate 71 is fixedly connected to the corresponding inner wall of the sewage filter box 7, and the filter plate 71 is spaced apart from the bottom wall of the sewage filter box 7 in the vertical direction. Therefore, the sewage flowing back into the sewage filter box 7 will be filtered by the filter plate 71 to remove dust in the sewage.

[0075] Reference Figure 4 and Figure 5 A return pipe 72 is provided on the side wall of the sewage filter box 7, and both ends of the return pipe 72 are connected to the sewage filter box 7 and the spray box 32 respectively. The return pipe 72 is located at the lower side of the filter plate 71 in the vertical direction, and a water pump is provided in the sewage filter box 7 or the spray box 32, and the return pipe 72 is connected to the water pump. The filtered sewage will flow back into the spray box 32 through the return pipe 72, which can realize the reuse of the cleaning liquid and reduce the waste of water resources.

[0076] The implementation principle of the embodiment of the present application is as follows: a replacement mechanism 6 is added on the basis of embodiment 1, and when the spray head 31 cannot effectively remove the dust on the replacement lens 41, the replacement lens 41 on the camera tube 12 can be automatically replaced, which can facilitate the rapid restoration of the clarity of the monitoring image captured by the camera tube 12.

[0077] Furthermore, the disassembled replacement lens 41 can be rinsed for a long time by the corresponding cleaning nozzle 34 , which can effectively clean the disassembled replacement lens 41 , and the disassembled replacement lens 41 can be used as a spare replacement lens 41 , which can save the cost of replacing the lens 41 .

[0078] In addition, the sewage filter box 7 is provided to filter the sewage and send it back to the spray box 32, so as to realize the recycling of the cleaning liquid and reduce the waste of water resources.

[0079] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An explosion-proof PTZ camera with an automatic spray dust removal system, characterized in that: include: A camera body (1) comprises a pan-tilt base (11) and a camera barrel (12), wherein the camera barrel (12) is mounted on the pan-tilt base (11); The dust removal mechanism (2) comprises a dust removal scraper (21), the dust removal scraper (21) being arranged at the imaging end of the imaging tube (12), the dust removal scraper (21) being in close contact with the imaging end of the imaging tube (12), and the imaging tube (12) being provided with a dust removal driving member (22) for driving the dust removal scraper (21) to rotate; A spray mechanism (3) comprising a spray head (31) and a spray box (32), wherein the spray head (31) is connected to the spray box (32) via a pipeline, and the spray head (31) is arranged on the pan / tilt base (11), and the spray head (31) is arranged toward the camera tube (12); and the pan / tilt base (11) can drive the camera end of the camera tube (12) to face the spray head (31); The invention also comprises a detachable lens mechanism (4), the detachable lens mechanism (4) comprising a replacement lens (41), the replacement lens (41) being arranged at the imaging end of the camera barrel (12), the replacement lens (41) being coaxially arranged with the camera barrel (12), and the replacement lens (41) and the camera barrel (12) being detachably connected; the dust removal scraper (21) being located on a side of the replacement lens (41) away from the camera barrel (12), and the dust removal scraper (21) being in contact with the replacement lens (41); The camera end of the camera tube (12) is provided with an electromagnet (421), the replacement lens (41) is provided with a magnetic piece (422), and the electromagnet (421) and the magnetic piece (422) are attracted together along the axial direction of the replacement lens (41); It also comprises an installation box (5), the pan / tilt base (11) being arranged on the installation box (5), and a lifting driving member (53) for driving the pan / tilt base (11) to lift and lower in a vertical direction being arranged on the installation box (5); A replacement hole (54) is provided through the upper side wall of the installation box (5); when the pan / tilt base (11) drives the camera barrel (12) to rotate to a vertical position, the camera barrel (12) and the replacement hole (54) are arranged opposite to each other in the vertical direction, and the lifting drive member (53) can drive the camera barrel (12) to be plugged into and matched with the replacement hole (54); a replacement plate (62) is provided in the installation box (5); a replacement groove (621) capable of loading the replacement lens (41) is provided on the upper side of the replacement plate (62); the replacement groove (621) and the replacement hole (54) are arranged opposite to each other in the vertical direction.

2. The explosion-proof PTZ camera with an automatic spray dust removal system according to claim 1, characterized in that: The dust removal scraper (21) is detachably connected to the drive shaft of the dust removal drive member (22).

3. The explosion-proof PTZ camera with an automatic spray dust removal system according to claim 2, characterized in that: The driving shaft of the dust removal driving member (22) is coaxially connected to a sleeve (431); one end of the dust removal scraper (21) is connected to an insertion rod (432); the insertion rod (432) is coaxially arranged with the sleeve (431), and the insertion rod (432) is plugged and matched with the sleeve (431) along its own axial direction; when the dust removal driving member (22) drives the sleeve (431) to rotate, the sleeve (431) drives the insertion rod (432) to rotate.

4. The explosion-proof PTZ camera with an automatic spray dust removal system according to claim 3, characterized in that: The replacement lens (41) is sleeved with a mounting ring (44) on the outside, the mounting ring (44) is penetrated by a mounting hole (442), the insertion rod (432) is plugged into the mounting hole (442), and the insertion rod (432) is rotatably connected to the inner wall of the mounting hole (442).

5. The explosion-proof PTZ camera with an automatic spray dust removal system according to claim 1, characterized in that: Two replacement grooves (621) are provided, and the two replacement grooves (621) are arranged at intervals along the length direction of the replacement plate (62), and one replacement groove (621) is arranged opposite to the replacement hole (54), and a replacement driving member (63) is arranged in the installation box (5) for driving the replacement plate (62) to move along its own length direction.

6. The explosion-proof PTZ camera with an automatic spray dust removal system according to claim 5, characterized in that: A clearance hole (622) is formed through the bottom of the replacement groove (621).

7. The explosion-proof PTZ camera with an automatic spray dust removal system according to claim 6, characterized in that: A sewage filter box (7) is also provided in the installation box (5), the sewage filter box (7) is located at the lower side of the replacement plate (62), the opening of the sewage filter box (7) is arranged toward the replacement plate (62), and the clearance hole (622) is communicated with the opening of the sewage filter box (7); A filter plate (71) is arranged in the sewage filter box (7), and the filter plate (71) is arranged at a distance from the bottom plate of the sewage filter box (7) in the vertical direction; The sewage filter box (7) is provided with a water return pipe (72), which is located at the lower side of the filter plate (71) in the vertical direction, and one end of the water return pipe (72) is connected to the sewage filter box (7), and the other end is connected to the spray box (32).

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