Video monitoring device for construction sites

Abstract

The application provides a video monitoring device for a construction site, and belongs to the technical field of video monitoring devices, and comprises a support, a camera assembly, a supporting plate, a driving assembly and a positioning nail. The support is provided with a plurality of moving wheels. The camera assembly is arranged at the top end of the support. The supporting plate is arranged horizontally and is connected to the support in a sliding mode along the vertical direction. The driving assembly is arranged on the support and is used for driving the supporting plate to slide. The positioning nail is arranged vertically and penetrates the supporting plate in a sliding mode, and the head of the positioning nail is located above the supporting plate. The video monitoring device for the construction site can avoid the problem that it is difficult to move due to the large volume and weight of the whole video monitoring device.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of video monitoring devices, and more particularly relates to a video monitoring device for a construction site. BACKGROUND

[0002] In a construction site such as a power construction site, a large number of video monitoring devices need to be set up for monitoring the construction site. As the construction progresses, the positions of the video monitoring devices need to be changed constantly. The existing video monitoring device includes a support and a camera assembly mounted on the support. The support needs to be fixedly connected with the ground to prevent the support from toppling over. When the position of the video monitoring device needs to be changed, the fixed connection between the support and the ground needs to be disconnected first, then the video monitoring device needs to be moved to the next monitoring point, and finally the support needs to be fixedly connected with the ground again. Since the entire video monitoring device has a large volume and weight, it is relatively laborious to move. SUMMARY

[0003] The present application aims to provide a video monitoring device for a construction site, which aims to solve the problem that it is relatively laborious to move the video monitoring device due to its large volume and weight.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows: a video monitoring device for a construction site is provided, which includes a support, a camera assembly, a support plate, a driving assembly and a positioning spike. The support is provided with a plurality of moving wheels for rolling along the ground. The camera assembly is arranged at the top end of the support. The support plate is arranged horizontally and is connected with the support in a sliding manner along the vertical direction. The driving assembly is arranged on the support and is used to drive the support plate to slide. The positioning spike is arranged vertically and penetrates the support plate in a sliding manner. The head of the positioning spike is located above the support plate. When the support plate slides upward to a first height, the head of the positioning spike abuts against the support plate and a moving gap is formed between the positioning spike and the ground. When the support plate slides downward to a second height, the positioning spike abuts against the ground and a penetrating gap is formed between the head of the positioning spike and the support plate.

[0005] In a possible implementation, the support frame comprises a base, a plurality of the moving wheels are arranged on the base, a side wall at the top end of the base has an outwardly protruding fixing portion, the support plate is located below the fixing portion, the fixing portion is provided with a first threaded hole arranged vertically, and the driving assembly comprises a driving pipe, a fixing plate, a fixing shaft and a compression spring. The driving pipe is arranged in the first threaded hole and is provided with a first external thread in threaded connection with the first threaded hole, the driving pipe is arranged around the head of the positioning nail and abuts against the support plate. The fixing plate is arranged horizontally and located below the support plate, the fixing plate is fixedly connected with the base and is provided with a through hole for the positioning nail to pass through. The fixing shaft is arranged vertically and fixedly arranged on the fixing plate, and the fixing shaft penetrates the support plate. The compression spring is arranged around the fixing shaft, and the two ends of the compression spring abut against the support plate and the fixing plate, respectively.

[0006] In a possible implementation, the top surface of the fixing shaft is provided with a second threaded hole arranged vertically, and the video monitoring device for a construction site further comprises a positioning shaft and a gravity block. The positioning shaft comprises connected connecting segments and sliding segments, the two connecting segments are arranged in the two second threaded holes, respectively, and the connecting segments are provided with second external threads in threaded connection with the second threaded holes. The gravity block is arranged around the sliding segments, and when the two connecting segments are threaded into the two second threaded holes, respectively, the gravity block is located directly above the driving pipe.

[0007] In a possible implementation, the top surface of the positioning nail is provided with a third threaded hole arranged vertically, and the video monitoring device for a construction site further comprises a sliding shaft, a connecting plate and a connecting bolt. The sliding shaft is arranged vertically and penetrates the fixing portion. The connecting plate is fixedly connected with the sliding shaft, and the connecting plate is arranged on the driving pipe. The connecting bolt is arranged in the connecting plate, and the screw rod of the connecting bolt is arranged in the third threaded hole and is in threaded connection with the third threaded hole.

[0008] In a possible implementation, the support frame further has a support rod vertically arranged and fixed to the base, and the camera assembly is fixed to a top end of the support rod. The video monitoring device for a construction site further includes a fixing member, a sliding member, a protective box, a positioning tube, and a limiting shaft. The fixing member is fixed to the support rod and is provided with a vertically arranged positioning hole. The sliding member is located above the fixing member and is slidably sleeved to the support rod. The protective box has an open bottom end and is fixedly connected to the sliding member. The positioning tube is vertically arranged between the fixing member and the sliding member and is fixedly connected to the sliding member. The limiting shaft has a first limiting portion protruding outward from a sidewall of a middle portion of the limiting shaft, and the limiting shaft has a first segment and a second segment located on both sides of the first limiting portion. When the second segment is slidably inserted into the positioning hole, the first limiting portion abuts against an upper surface of the fixing member, the first segment is slidably inserted into the positioning tube, and the first segment abuts against the sliding member, the protective box is located directly above the support rod and the camera assembly. When the limiting shaft is removed, the positioning tube is slidably inserted into the positioning hole, and the sliding member abuts against the fixing member, the protective box is arranged on an upper end of the support rod and outside the camera assembly.

[0009] In a possible implementation, a sidewall of the support rod is provided with an annular groove, an axis of the annular groove is vertically arranged, and the video monitoring device for a construction site further includes an opening and closing plate. The opening and closing plate is horizontally arranged and rotatably sleeved to the annular groove. When the opening and closing plate is rotated to a first preset angle, downward sliding of the sliding member can enable the protective box to be sealingly butted against the opening and closing plate. When the opening and closing plate is rotated to a second preset angle, the opening and closing plate can avoid the camera assembly directly below.

[0010] In a possible implementation, the video monitoring device for a construction site further includes an air inlet pipe. The air inlet pipe is fixed to the sliding member, one end of the air inlet pipe is fixedly connected to the protective box and is in communication with a top portion in the protective box.

[0011] In a possible implementation, the base is provided with an accommodating cavity, and the video monitoring device for a construction site further includes a filter screen, a first communication pipe, a second communication pipe, and an air pipe. The filter screen is located in the accommodating cavity and is fixedly attached to an inner wall of the accommodating cavity in a circumferential direction to divide the accommodating cavity into a first portion and a second portion. The first communication pipe is fixed to the base and is in communication with the first portion. The second communication pipe is fixed to the base and is in communication with the second portion. The air pipe is vertically arranged and has an upper end fixed to the opening and closing plate. The opening and closing plate is provided with a lower leakage hole in communication with the air pipe. When the opening and closing plate is rotated to a first preset angle, a lower end of the air pipe can be detachably connected to and in communication with the first communication pipe.

[0012] In a possible implementation, the second part is located at a side of the first part in a horizontal direction, the first communicating pipe is vertically arranged, a side wall of a bottom end of the air pipe has an outwardly protruding anti-disengagement part, and the video monitoring device for a construction site further comprises a third communicating pipe, a fourth communicating pipe, a water outlet pipe, and a valve. One end of the third communicating pipe has an end wall covering the end of the third communicating pipe, the end wall is slidingly sleeved on the air pipe, and the anti-disengagement part is located in the third communicating pipe. One end of the fourth communicating pipe is fixedly connected with and communicates with the first communicating pipe, and the fourth communicating pipe has a vertical segment containing the other end of the fourth communicating pipe. The water outlet pipe is fixedly connected with the base and communicates with the bottom of the first part. The valve is arranged on the water outlet pipe. A rubber plug is used to be penetrated into the vertical segment. When the opening and closing plate is rotated to a first preset angle, the third communicating pipe can be slidingly and sealingly sleeved on the first communicating pipe; when the opening and closing plate is rotated to a second preset angle, the third communicating pipe can be slidingly and sealingly sleeved on the vertical segment.

[0013] In a possible implementation, the video monitoring device for a construction site further comprises a first sealing ring. The first sealing ring is horizontally arranged and fixedly arranged on the opening and closing plate. When the opening and closing plate is rotated to a first preset angle, the downward sliding of the sliding member can cause the protective box to be sleeved outside the first sealing ring and sealingly attached to the first sealing ring in a circumferential direction.

[0014] In the embodiment, the head of the positioning nail is located above the support plate, that is, the nail tip is located below the support plate. When the support needs to be fixedly connected with the ground, the driving assembly drives the sliding member to slide downward to the second height, at this time, the positioning nail abuts against the ground and the head of the positioning nail has a penetrating gap with the support plate, at this time, the positioning nail can be hammered downward, so that the positioning nail penetrates into the ground, and the fixed connection of the support with the ground is realized. When the device needs to be moved to other places, the positioning nail is pulled out of the ground upward, and then the driving assembly drives the support plate to slide upward to the first height, at this time, the head of the positioning nail abuts against the support plate and the positioning nail has a moving gap with the ground, that is, the support plate supports the positioning nail, at this time, the support can be pushed to move. Since the support is provided with a plurality of moving wheels for rolling along the ground, the support is convenient to move, so that the problem that the video monitoring device is large in size and heavy in weight and is difficult to move is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of the axonometric structure of a video monitoring device for a construction site provided by an embodiment of the present invention Figure 1 ;

[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of local A in FIG;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of the local B in FIG;

[0019] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of the local C in FIG;

[0020] Figure 5 A schematic diagram of the axonometric structure of a video monitoring device for a construction site provided by an embodiment of the present invention Figure 2 ;

[0021] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of the local D in FIG;

[0022] Figure 7 A schematic diagram of the axonometric cross-sectional structure of a video monitoring device for a construction site provided by an embodiment of the present invention Figure 1 ;

[0023] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of the local E in FIG;

[0024] Figure 9 for Figure 7 Schematic diagram of the enlarged structure of the local F in FIG;

[0025] Figure 10 A schematic diagram of the axonometric cross-sectional structure of a video monitoring device for a construction site provided by an embodiment of the present invention Figure 2 ;

[0026] Figure 11 for Figure 10 Schematic diagram of the enlarged structure of the local G in ;

[0027] Figure 12 for Figure 10 Schematic diagram of the enlarged structure of the local H in FIG;

[0028] Figure 13 is a partial I in the enlarged structural schematic view of the structure; Figure 10

[0029] Figure 14 is a partial J in the enlarged structural schematic view of the structure; Figure 10

[0030] Figure 15 is an axonometric structural schematic view of the support and part connection in the video monitoring device for construction site provided by the embodiment of the application;

[0031] Figure 16 is a partial K in the enlarged structural schematic view of the structure; Figure 15

[0032] Figure 17 is a partial L in the enlarged structural schematic view of the structure; Figure 15

[0033] Figure 18 is an axonometric structural schematic view of the positioning shaft in the video monitoring device for construction site provided by the embodiment of the application.

[0034] In the figure: 1, support; 11, moving wheel; 12, base; 121, fixed part; 1211, first threaded hole; 122, containing cavity; 1221, first part; 1222, second part; 13, support rod; 131, annular groove; 14, cross rod; 2, camera assembly; 3, support plate; 4, driving assembly; 41, driving pipe; 42, fixed plate; 421, through hole; 43, fixed shaft; 431, second threaded hole; 44, compression spring; 5, positioning nail; 50, head; 51, third threaded hole; 6, positioning shaft; 61, connecting section; 62, sliding section; 621, second limiting part; 7, gravity block; 8, sliding shaft; 9, connecting plate; 10, connecting bolt; 110, fixed part; 120, sliding part; 130, protection box; 140, positioning pipe; 150, limiting shaft; 1501, first limiting part; 1502, first section; 1503, second section; 160, opening and closing plate; 1601, lower leakage hole; 170, air inlet pipe; 180, filter screen; 1901, second sealing ring; 1902, third sealing ring; 200, first communication pipe; 210, second communication pipe; 220, air pipe; 2201, anti-dropping part; 230, third communication pipe; 2301, end wall; 240, fourth communication pipe; 2401, vertical section; 250, water outlet pipe; 260, valve; 270, rubber plug; 280, first sealing ring. DETAILED DESCRIPTION

[0035] ​​​​In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application and not to limit the present application.

[0036] Please refer to Figure 1 and Figure 2 , the video monitoring device for construction site provided by the present application will be described. The video monitoring device for construction site comprises a support 1, a camera assembly 2, a support plate 3, a driving assembly 4 and a positioning nail 5. The support 1 is provided with a plurality of moving wheels 11 for rolling along the ground. The camera assembly 2 is arranged at the top end of the support 1. The support plate 3 is horizontally arranged and is connected with the support 1 in a sliding manner along the vertical direction. The driving assembly 4 is arranged on the support 1 and is used to drive the support plate 3 to slide. The positioning nail 5 is vertically arranged and penetrates the support plate 3 in a sliding manner. The head 50 of the positioning nail 5 is located above the support plate 3. When the support plate 3 slides upward to a first height, the head 50 of the positioning nail 5 abuts against the support plate 3 and the positioning nail 5 has a moving gap with the ground. When the support plate 3 slides downward to a second height, the positioning nail 5 abuts against the ground and the head 50 has a penetrating gap with the support plate 3.

[0037] Compared with the prior art, the head 50 of the positioning nail 5 is located above the support plate 3, that is, the nail tip is located below the support plate 3. When the support 1 needs to be fixedly connected with the ground, the driving assembly 4 drives the sliding member 120 to slide downward to the second height. At this time, the positioning nail 5 abuts against the ground and the head 50 of the positioning nail 5 has a penetrating gap with the support plate 3. At this time, the positioning nail 5 can be hammered downward, so that the positioning nail 5 penetrates into the ground, thereby realizing the fixed connection between the support 1 and the ground. When the device needs to be moved to other places, the positioning nail 5 is pulled out of the ground, and then the driving assembly 4 drives the support plate 3 to slide upward to the first height. At this time, the head 50 of the positioning nail 5 abuts against the support plate 3 and the positioning nail 5 has a moving gap with the ground, that is, the support plate 3 supports the positioning nail 5. At this time, the support 1 can be pushed to move. Since the support 1 is provided with a plurality of moving wheels 11 for rolling along the ground, the support 1 is convenient to move, thereby avoiding the problem that the whole video monitoring device is large in size and heavy in weight, so that it is laborious to move.

[0038] In the prior art, the head 50 of the positioning nail 5 refers to a section that protrudes outward along the radial direction of the positioning nail 5, and the nail tip refers to a section that is conical.

[0039] In some embodiments, please refer to Figure 1 , Figure 2 , Figure 13 , Figure 15 andFigure 17 The support 1 comprises a base 12, a plurality of moving wheels 11 arranged on the base 12, a side wall at the top of the base 12 having a fixed portion 121 protruding outward, the support plate 3 being located below the fixed portion 121, the fixed portion 121 being provided with a first threaded hole 1211 arranged vertically, and the driving assembly 4 comprising a driving pipe 41, a fixed plate 42, a fixed shaft 43 and a compression spring 44. The driving pipe 41 is arranged in the first threaded hole 1211 and is provided with a first external thread threadedly connected with the first threaded hole 1211, and the driving pipe 41 is arranged on the head 50 of the positioning nail 5 and abuts against the support plate 3. The fixed plate 42 is arranged horizontally and below the support plate 3, and the fixed plate 42 is fixedly connected with the base 12 and is provided with a through hole 421 for the positioning nail 5 to pass through. The fixed shaft 43 is arranged vertically and is fixedly arranged on the fixed plate 42, and the fixed shaft 43 penetrates the support plate 3. The compression spring 44 is arranged on the fixed shaft 43, and the two ends of the compression spring 44 abut against the support plate 3 and the fixed plate 42, respectively.

[0040] When the driving pipe 41 is rotated, the driving pipe 41 moves in the vertical direction, and when the driving pipe 41 moves downward, the support plate 3 is driven to slide downward to the second height, and then a shaft part can be inserted into the driving pipe 41, so that the shaft part abuts against the head 50 of the positioning nail 5 and the shaft part is higher than the driving pipe 41, and at this time, the shaft part is knocked downward to make the positioning nail 5 penetrate into the ground.

[0041] When the positioning nail 5 is pulled upward, the compression spring 44 drives the support plate 3 to slide upward to the first height, and in the process of pulling out the positioning nail 5, the elastic force of the compression spring 44 acts on the head 50 of the positioning nail 5 through the support plate 3, thereby helping to pull out the positioning nail 5.

[0042] In the embodiment, the driving pipe 41 can limit the elastic force of the compression spring 44, and if there is no driving pipe 41, resistance of the compression spring 44 will be encountered when the positioning nail 5 is inserted into the ground.

[0043] The top of the driving pipe 41 is in a hexagonal prism structure, so that the driving pipe 41 can be driven to rotate by means of a wrench or the like.

[0044] When the support plate 3 slides upward to the second height, the tip of the positioning nail 5 can be located in the through hole 421, thereby preventing the operator from being pricked.

[0045] Further, the positioning nail 5, the driving assembly 4, the support plate 3 and the fixed portion 121 can be combined as a connecting unit, the number of the connecting units is multiple, and the multiple connecting units are distributed around the circumference of the base 12.

[0046] In some embodiments, referring to Figure 1 , Figure 2 ,Figure 6 and Figure 18 The top surface of the fixed shaft 43 is provided with a second threaded hole 431 arranged vertically, and the video monitoring device for the construction site further comprises a positioning shaft 6 and a gravity block 7. The positioning shaft 6 is two, and the positioning shaft 6 comprises a connecting segment 61 and a sliding segment 62 connected to each other. The two connecting segments 61 are respectively used to penetrate into the two second threaded holes 431, and the connecting segment 61 is provided with a second external thread used for threaded connection with the second threaded hole 431. The gravity block 7 is slidably sleeved on the two sliding segments 62, and when the two connecting segments 61 are respectively threaded into the two second threaded holes 431, the gravity block 7 is located directly above the driving pipe 41.

[0047] When the driving pipe 41 drives the support plate 3 to slide downward to the second height, the shaft part is penetrated into the driving pipe 41, and then the two connecting segments 61 are respectively threaded into the two second threaded holes 431. At this time, the gravity block 7 is located directly above the shaft part, the gravity block 7 is slid upward to a certain height and then is released, so that the gravity block 7 slides downward under the action of its own gravity and knocks the shaft part, thereby realizing that the positioning nail 5 penetrates into the ground.

[0048] In the embodiment, the side wall of the end of the sliding segment 62 away from the connecting segment 61 has a second limiting portion 621 protruding outward, so as to avoid that the gravity block 7 slides off the connecting segment 61 when the gravity block 7 is slid upward. The diameter of the connecting segment 61 is smaller than the diameter of the sliding segment 62.

[0049] In some embodiments, referring to Figure 2 , Figure 7 and Figure 8 The top surface of the positioning nail 5 is provided with a third threaded hole 51 arranged vertically, and the video monitoring device for the construction site further comprises a sliding shaft 8, a connecting plate 9 and a connecting bolt 10. The sliding shaft 8 is arranged vertically and is used to slide through the fixed part 121. The connecting plate 9 is fixedly connected with the sliding shaft 8, and the connecting plate 9 is used to be arranged on the driving pipe 41. The connecting bolt 10 is penetrated into the connecting plate 9, and the screw rod of the connecting bolt 10 is used to penetrate into the third threaded hole 51 and is threaded with the third threaded hole 51.

[0050] When it is needed to pull out the positioning nail 5 from the ground, the sliding shaft 8 is slid through the fixed part 121, and the connecting plate 9 is arranged on the driving pipe 41. Then the screw rod of the connecting bolt 10 is penetrated into the third threaded hole 51 and is threaded with the third threaded hole 51. At this time, the driving pipe 41 is rotated to move upward, so that the driving pipe 41 can push the connecting plate 9 upward, thereby driving the positioning nail 5 to move upward through the connecting bolt 10, and then the positioning nail 5 is pulled out from the ground.

[0051] In the embodiment, the sliding shaft 8 can prevent the connecting plate 9 from rotating with the driving pipe 41, i.e. prevent the connecting bolt 10 from rotating with the driving pipe 41, so as to prevent the connecting bolt 10 from loosening from the third threaded hole 51.

[0052] In some embodiments, referring to Figure 1 , Figure 3 , Figure 4 , Figure 10 and Figure 11 , the support 1 further has a support rod 13 vertically arranged and fixed on the base 12, the camera assembly 2 is fixed on the top end of the support rod 13, and the video monitoring device for the construction site further comprises a fixing member 110, a sliding member 120, a protective box 130, a positioning pipe 140 and a limiting shaft 150. The fixing member 110 is fixed on the support rod 13, and the fixing member 110 is provided with a positioning hole arranged vertically. The sliding member 120 is located above the fixing member 110 and is sleeved on the support rod 13. The bottom end of the protective box 130 is an open end and is fixedly connected with the sliding member 120. The positioning pipe 140 is vertically arranged and located between the fixing member 110 and the sliding member 120, and the positioning pipe 140 is fixedly connected with the sliding member 120. The sidewall of the middle part of the limiting shaft 150 has a first limiting part 1501 protruding outward, and the limiting shaft 150 has a first segment 1502 and a second segment 1503 located on both sides of the first limiting part 1501. When the second segment 1503 is slidably inserted into the positioning hole, the first limiting part 1501 abuts against the upper surface of the fixing member 110, the first segment 1502 is slidably inserted into the positioning pipe 140 and abuts against the sliding member 120, the protective box 130 is located directly above the support rod 13 and the camera assembly 2; when the limiting shaft 150 is removed, the positioning pipe 140 is slidably inserted into the positioning hole and the sliding member 120 abuts against the fixing member 110, the protective box 130 is sleeved on the upper end of the support rod 13 and the camera assembly 2.

[0053] When the support 1 is fixed to the ground, the sliding member 120 is slid upward to a certain height, then the second segment 1503 is slidably inserted into the positioning hole and the first limiting part 1501 abuts against the upper surface of the fixing member 110, and then the sliding member 120 is slid downward, so that the first segment 1502 is slidably inserted into the positioning pipe 140 and abuts against the fixing member 110, which can limit the sliding member 120 from sliding downward, so that the protective box 130 is kept directly above the support rod 13 and the camera assembly 2. The protective box 130 can shield the camera assembly 2 from rain and does not affect the function of the camera assembly 2.

[0054] When the support 1 is to be moved, the sliding member 120 is slid upward, the first section 1502 is withdrawn from the positioning tube 140, the second section 1503 is pulled out of the positioning hole, and then the sliding member 120 is slid downward, the positioning tube 140 penetrates into the positioning hole, and the sliding member 120 abuts against the fixing member 110, at this time, the protection box 130 covers the upper end of the support rod 13 and the camera assembly 2, so that the camera assembly 2 is prevented from being collided during the movement of the device.

[0055] In the embodiment, the diameter of the first section 1502 can be smaller than the diameter of the second section 1503. The upper end of the support rod 13 is fixedly provided with a horizontal cross rod 14, and the camera assembly 2 is fixedly provided on the cross rod 14. The camera assembly 2 can be a known camera, and is fixedly connected to the cross rod 14 in a connection manner known in the art.

[0056] In addition, the length of the first section 1502 can be reasonably set. When the positioning shaft 6 is removed, the first section 1502 can penetrate into the driving tube 41, and the positioning nail 5 can penetrate into the ground by knocking the positioning shaft 6 downward.

[0057] In some embodiments, referring to Figure 5 and Figure 16 , the side wall of the support rod 13 is provided with an annular groove 131, and the axis of the annular groove 131 is vertically arranged. The video monitoring device for the construction site further comprises an opening and closing plate 160. The opening and closing plate 160 is horizontally arranged and rotatably sleeved in the annular groove 131. When the opening and closing plate 160 is rotated to a first preset angle, the downward sliding of the sliding member 120 can make the protection box 130 sealingly butt against the opening and closing plate 160. When the opening and closing plate 160 is rotated to a second preset angle, the opening and closing plate 160 can avoid the directly below of the camera assembly 2.

[0058] Before the support 1 is moved, the opening and closing plate 160 is rotated to the first preset angle, and then the positioning shaft 6 is removed and the sliding member 120 is slid downward, so that the protection box 130 sealingly butt against the opening and closing plate 160. In this way, the camera assembly 2 can be better protected during the movement of the device.

[0059] In some embodiments, referring to Figure 10 , the video monitoring device for the construction site further comprises an air inlet pipe 170. The air inlet pipe 170 is fixedly provided on the sliding member 120, one end of the air inlet pipe 170 is fixedly connected with the protection box 130 and communicates with the top of the protection box 130.

[0060] In the prior art, it is inconvenient to clean the dust on the camera assembly 2 because the height of the camera assembly 2 is high. In the embodiment, one end of the air inlet pipe 170 is communicated with the air outlet of the air compressor, and compressed gas is blown into the protection box 130 by the air compressor, so as to blow away the dust on the camera assembly 2.

[0061] In some embodiments, referring to Figure 7 、 Figure 10 、 Figure 12 、 Figure 13 、 Figure 14 and Figure 15 , the base 12 is provided with a containing cavity 122, and the video monitoring device for the construction site further comprises a filter screen 180, a first communication pipe 200, a second communication pipe 210 and a vent pipe 220. The filter screen 180 is located in the containing cavity 122, and the filter screen 180 is fixedly attached to the inner wall of the containing cavity 122 in a circumferential direction, so as to divide the containing cavity 122 into a first part 1221 and a second part 1222. The first communication pipe 200 is fixedly arranged on the base 12 and communicated with the first part 1221. The second communication pipe 210 is fixedly arranged on the base 12 and communicated with the second part 1222. The vent pipe 220 is vertically arranged and the upper end thereof is fixedly arranged on the opening and closing plate 160.

[0062] The opening and closing plate 160 is provided with a lower leakage hole 1601 communicated with the vent pipe 220, and when the opening and closing plate 160 is rotated to a first preset angle, the lower end of the vent pipe 220 can be detachably connected and communicated with the first communication pipe 200.

[0063] When it is needed to clean the dust on the camera assembly 2, the opening and closing plate 160 is rotated to the first preset angle, the lower end of the vent pipe 220 is detachably connected and communicated with the first communication pipe 200, then the positioning shaft 6 is removed and the sliding piece 120 is slid downward, so that the protection box 130 is sealingly butted against the opening and closing plate 160, and then compressed air is injected into the air inlet pipe 170. After the gas enters the protection box 130, it enters the first part 1221 of the containing cavity 122 along with the dust through the lower leakage hole 1601, the vent pipe 220 and the first communication pipe 200. The compressed air in the first part 1221 enters the second part 1222 after being filtered by the filter screen 180, and finally is discharged along the second communication pipe 210. The dust carried by the compressed air is left in the first part 1221, so that the dust blown off from the camera assembly 2 does not fly everywhere and pollute the environment.

[0064] In the embodiment, the sliding of the sliding piece 120 can be limited when the compressed air is injected into the air inlet pipe 170.

[0065] In some embodiments, referring to Figure 5 、 Figure 6 、 Figure 9 、 Figure 13 andFigure 14 The second part 1222 is located at one side of the first part 1221 in horizontal direction, the first communicating pipe 200 is vertically arranged, the side wall of the bottom end of the air pipe 220 has an outward protruding anti-disengagement part 2201, the video monitoring device for construction site further comprises a third communicating pipe 230, a fourth communicating pipe 240, a water outlet pipe 250 and a valve 260. One end of the third communicating pipe 230 has an end wall 2301 covering the end of the third communicating pipe 230, the end wall 2301 is slidingly sleeved on the air pipe 220, and the anti-disengagement part 2201 is located in the third communicating pipe 230. One end of the fourth communicating pipe 240 is fixedly connected with the first communicating pipe 200 and is in communication, the fourth communicating pipe 240 has a vertical section 2401 containing the other end of the fourth communicating pipe 240. The water outlet pipe 250 is fixedly connected with the base 12 and is in communication with the bottom of the first part 1221. The valve 260 is arranged on the water outlet pipe 250. The rubber plug 270 is arranged in the vertical section 2401. When the shutter 160 is rotated to the first preset angle, the third communicating pipe 230 can be slidingly and sealingly sleeved on the first communicating pipe 200; when the shutter 160 is rotated to the second preset angle, the third communicating pipe 230 can be slidingly and sealingly sleeved on the vertical section 2401.

[0066] When the shutter 160 is rotated to the first preset angle, the third communicating pipe 230 is slidingly sleeved on the first communicating pipe 200, so as to limit the rotation of the shutter 160, and before the compressed air is injected into the air inlet pipe 170, the rubber plug 270 is arranged in the vertical section 2401, so as to avoid the compressed air entering the first part 1221 from escaping from the fourth communicating pipe 240;

[0067] When the rubber plug 270 is pulled out of the vertical section 2401 and the shutter 160 is rotated to the second preset angle, the third communicating pipe 230 is slidingly sleeved on the vertical section 2401, so that the shutter 160 can receive the precipitation, so that the precipitation can flow into the first part 1221 through the vertical downhole 1601, the air pipe 220 and the fourth communicating pipe 240, and the precipitation can also directly enter the first part 1221 from the first communicating pipe 200, so that the precipitation and the dust in the first part 1221 form a mixed solution, and then the valve 260 is opened, so that the mixed solution in the first part 1221 can flow out, so that the dust in the first part 1221 can be taken out, and the dust can also be prevented from floating. The pulled-out rubber plug 270 can be arranged in the second communicating pipe 210.

[0068] In the embodiment, the third communication pipe 230 can be coaxially provided with a second sealing ring 1901 and a third sealing ring 1902, both of which are fixedly connected with the third communication pipe 230. The second sealing ring 1901 is sleeved on the vent pipe 220 and located between the end wall 2301 and the anti-disengagement portion 2201. The third sealing ring 1902 is used to be slidingly sleeved on the first communication pipe 200 or the vertical section 2401, so as to ensure the sealing between the third communication pipe 230 and the first communication pipe 200 or the vertical section 2401. Meanwhile, the frictional force between the second sealing ring 1901 and the vent pipe 220 and the frictional force between the third sealing ring 1902 and the first communication pipe 200 or the vertical section 2401 can increase the sliding resistance of the third communication pipe 230.

[0069] In some embodiments, referring to Figure 4 and Figure 12 , the video monitoring device for the construction site further comprises a first sealing ring 280. The first sealing ring 280 is horizontally arranged and fixed on the opening and closing plate 160. When the opening and closing plate 160 is rotated to the first preset angle, the downward sliding of the sliding piece 120 can make the protection box 130 sleeved outside the first sealing ring 280 and sealingly attached to the first sealing ring 280 in the circumferential direction, so as to ensure the sealing butt joint of the protection box 130 and the opening and closing plate 160. When the opening and closing plate 160 is at the second preset angle, the first sealing ring 280 can prevent the precipitation falling into the first sealing ring 280 from flowing out of the opening and closing plate 160, so as to smoothly flow into the lower leakage hole 1601.

[0070] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A video monitoring device for construction site, comprising: a support provided with a plurality of moving wheels for rolling along the ground, the support comprising a base provided with a receiving cavity, the support further comprising a support rod vertically arranged and fixed to the base, a side wall of the support rod being provided with an annular groove, an axis of the annular groove being vertically arranged; a camera assembly arranged at a top end of the support; a support plate horizontally arranged and vertically slidably connected to the support; a driving assembly arranged on the support and used for driving the support plate to slide; and a positioning pin vertically arranged and slidably penetrating the support plate, a head of the positioning pin being located above the support plate; wherein, when the support plate slides upward to a first height, the head of the positioning pin abuts against the support plate and a moving gap is formed between the positioning pin and the ground; when the support plate slides downward to a second height, the positioning pin abuts against the ground and a penetrating gap is formed between the head of the positioning pin and the support plate; an opening and closing plate horizontally arranged and rotatably sleeved in the annular groove; a filter screen located in the receiving cavity, the filter screen being fixedly attached to an inner wall of the receiving cavity in a circumferential direction to divide the receiving cavity into a first part and a second part; a first communication pipe fixed to the base and in communication with the first part; a second communication pipe fixed to the base and in communication with the second part; an air pipe vertically arranged and having an upper end fixed to the opening and closing plate; wherein the opening and closing plate is provided with a lower leakage hole in communication with the air pipe, when the opening and closing plate is rotated to a first preset angle, a lower end of the air pipe can be detachably connected to and in communication with the first communication pipe; the second part is located on one side of the first part in a horizontal direction, the first communication pipe is vertically arranged, a side wall of the lower end of the air pipe has an outwardly protruding anti-disengagement portion; a third communication pipe having an end wall covering an end of the third communication pipe, the end wall being slidably sleeved on the air pipe, the anti-disengagement portion being located in the third communication pipe; a fourth communication pipe having one end fixedly connected to and in communication with the first communication pipe, the fourth communication pipe having a vertical section containing the other end of the fourth communication pipe; a water outlet pipe fixedly connected to the base and in communication with a bottom of the first part; a valve arranged on the water outlet pipe; a rubber plug arranged in the vertical section; wherein, when the opening and closing plate is rotated to the first preset angle, the third communication pipe can be slidably and sealingly sleeved on the first communication pipe; when the opening and closing plate is rotated to a second preset angle, the third communication pipe can be slidably and sealingly sleeved on the vertical section.

2. The video monitoring device for a construction site according to claim 1, wherein A plurality of the moving wheels are arranged on the base, a side wall of a top end of the base has an outwardly protruding fixing portion, the support plate is located below the fixing portion, the fixing portion is provided with a first threaded hole vertically arranged, the driving assembly comprises: a driving pipe arranged in the first threaded hole and provided with a first external thread threadedly connected to the first threaded hole, the driving pipe being used for sleeving outside the head of the positioning pin and abutting against the support plate. A fixed plate is horizontally arranged below the support plate, and is fixedly connected with the base and provided with a through hole for the positioning nail to pass through; Two fixed shafts are vertically arranged and fixed on the fixed plate, and slide through the support plate; Two compression springs are respectively sleeved on the two fixed shafts, and the two ends of the compression springs are respectively abutted with the support plate and the fixed plate.

3. The video monitoring device for a construction site according to claim 2, wherein The top surface of the fixed shaft is provided with a second threaded hole arranged vertically, and the video monitoring device for a construction site further comprises: Two positioning shafts, which comprise connected connecting segments and sliding segments, and the two connecting segments are respectively used for penetrating into the two second threaded holes, and the connecting segments are provided with second external threads for being threadedly connected with the second threaded holes; A gravity block is slidably sleeved on the two sliding segments, and when the two connecting segments are threadedly connected in the two second threaded holes, the gravity block is located directly above the driving pipe.

4. The video monitoring device for a construction site according to claim 2, wherein The top surface of the positioning nail is provided with a third threaded hole arranged vertically, and the video monitoring device for a construction site further comprises: A sliding shaft is vertically arranged and used for sliding through the fixed part; A connecting plate is fixedly connected with the sliding shaft, and the connecting plate is used for being arranged on the driving pipe; A connecting bolt is arranged in the connecting plate, and the screw rod of the connecting bolt is used for penetrating into the third threaded hole and being threadedly connected with the third threaded hole.

5. The video monitoring device for a construction site according to claim 2, wherein The camera assembly is fixedly arranged at the top end of the support rod, and the video monitoring device for a construction site further comprises: A fixing member is fixedly arranged on the support rod, and is provided with a positioning hole arranged vertically; A sliding member is located above the fixing member and is slidably sleeved on the support rod; A protection box has an open bottom end and is fixedly connected with the sliding member; A positioning pipe is vertically arranged between the fixing member and the sliding member, and is fixedly connected with the sliding member; A limiting shaft has a first limiting portion protruding outward on the side wall of the middle portion, and has a first segment and a second segment located on both sides of the first limiting portion; When the second segment is slidably inserted into the positioning hole, the first limiting portion is abutted with the upper surface of the fixing member, the first segment is slidably inserted into the positioning pipe and is abutted with the sliding member, the protection box is located directly above the support rod and the camera assembly; when the limiting shaft is removed, the positioning pipe is slidably inserted into the positioning hole and the sliding member is abutted with the fixing member, the protection box is arranged on the upper end of the support rod and outside the camera assembly.

6. The video monitoring device for a construction site according to claim 5, wherein When the opening and closing plate is rotated to a first preset angle, the downward sliding of the sliding member can make the protection box and the opening and closing plate sealingly butt joint, and when the opening and closing plate is rotated to a second preset angle, the opening and closing plate can avoid the camera assembly directly below.

7. The video monitoring device for a construction site according to claim 6, wherein Further comprising: An air inlet pipe is fixedly arranged on the sliding member, and one end of the air inlet pipe is fixedly connected with the protection box and is in communication with the top portion in the protection box.

8. The video monitoring device for a construction site according to claim 7, wherein Further comprising: A first sealing ring is horizontally arranged and fixed on the opening and closing plate. When the opening and closing plate rotates to a first preset angle, the downward sliding of the sliding member can make the protective box cover the first sealing ring and be in circumferential sealing contact with the first sealing ring.

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