A method for using a construction site safety monitoring and early warning device

Abstract

The application discloses a kind of construction site safety monitoring early warning device's use method, including construction site safety monitoring early warning device, the construction site safety monitoring early warning device includes display screen, further include support assembly, drive mechanism and protection component.The application in, split formula can be spliced and assembled structure, device not only installation disassembly fast efficient, and transportation use or storage arrangement is convenient and labor-saving, additional drive mechanism provides condition for the installation of display screen on support assembly, on the one hand, lifting assembly in drive mechanism plays the lifting adjustment effect to the position height of display screen, it is convenient for staff operation use, on the other hand, mobile component in drive mechanism is slidably matched protection component, can be slid along the outside of display screen and be expanded or cover, both play the protection effect to display screen, also play the cleaning effect to the surface of display screen.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building equipment, in particular to a use method of a construction site safety monitoring and early warning device. BACKGROUND

[0002] BIM is a building information model, and BIM technology can help realize the integration of building information, from the design, construction, operation of the building to the end of the building life cycle, various information is always integrated in a three-dimensional model information database, and various personnel such as design team, construction unit, facility operation department and owner can work collaboratively based on BIM, which can effectively improve work efficiency, save resources, reduce cost and realize sustainable development.

[0003] In view of this, Chinese patent number CN202110964637.2 proposes a building site safety monitoring and early warning device based on photoelectric control, which can conveniently clean the surface of the monitoring display screen, and can improve the surface wetting effect of the cleaning roller through the wetting assembly, and can also remove dust above the deflector, thereby further improving the cleanliness of the surface of the monitoring display screen. However, the building site safety monitoring and early warning device in the above-mentioned patent still has the following deficiencies:

[0004] ①, without display screen protection function: the use environment of the safety monitoring and early warning device is the construction site, when the site is not under construction, the display screen is directly exposed to the outside, which not only affects the use effect by adhering dust and other impurities, but also reduces the service life, and is also easy to be damaged by external factors during transportation, causing unnecessary property loss;

[0005] ②, without display screen lifting function: when the device is in use, the display screen cannot be adjusted in position, which is not convenient for the use of workers, and when the device is not in use, the display screen cannot be lowered for storage, which affects its service life;

[0006] ③, without convenient installation and disassembly function: because the device has a large body size, and needs to be repeatedly disassembled and used in the construction site, it will bring a use burden to the workers.

[0007] Therefore, we propose a use method of a construction site safety monitoring and early warning device to solve the above-mentioned problems. SUMMARY

[0008] The technical problem to be solved by the present application is to provide a use method of a construction site safety monitoring and early warning device with safety protection and convenient use functions.

[0009] In order to solve the above technical problems, the application adopts the following technical scheme: a use method of a construction site safety monitoring and early warning device, comprising a display screen, further comprising a support assembly, a driving mechanism and a protection assembly;

[0010] The driving mechanism comprises a lifting assembly and a moving assembly, the lifting assembly is detachably installed on the support assembly, the moving assembly is slidingly installed on the lifting assembly, the display screen is installed on the moving assembly, and the protection assembly has two groups, which are slidingly sleeved on the left and right sides of the display screen.

[0011] Further, the lifting assembly comprises at least an electric guide rail, a block and a ring, the moving assembly comprises at least a driving box, the block is slidingly installed on the front face of the electric guide rail, the ring is centrally installed on the back face of the driving box, and the block and the ring are snap matched.

[0012] Further, the display screen is installed on the front face of the driving box, and a protective frame is installed on the periphery of the display screen.

[0013] Further, the lifting assembly further comprises a support cross bar, a guide rod, a connecting rod and a sliding sleeve, the support cross bar is fixed to the top of the electric guide rail, the guide rod has two rods, which are respectively fixed to the left and right ends of the bottom of the support cross bar, the connecting rod has two rods, one end of which is respectively connected to the back face of the driving box, and the other end is fixedly connected to the sliding sleeve, the sliding sleeve is slidingly sleeved on the periphery of the guide rod, and the bottom of the guide rod is provided with a knob.

[0014] Further, the protection assembly comprises a protection cover and an I-shaped sliding block, the protection cover is in a rectangular tube structure, and an opening matching the size of the driving box is centrally formed in the back face, and the I-shaped sliding block is fixed to the end of the inner wall face of one side of the opening via a connecting block.

[0015] The moving assembly further comprises a driving disc and a driving screw rod, the driving disc is fixed to the end of the driving screw rod, the driving screw rod is spirally rotatable and inserted into the inside of the driving box, a limiting long hole is formed in the top of the driving box, the driving screw rod is located in the inside of the limiting long hole, two threaded sleeves are centrally threadedly sleeved on the outside of the driving screw rod, the threaded directions of the two threaded sleeves are opposite, the I-shaped sliding block is slidingly installed in the limiting long hole, and the bottom of the I-shaped sliding block is fixedly connected to the threaded sleeves.

[0016] Further, the protection assembly further comprises a pressing plate, a protection plate and a threaded adjusting turntable, the threaded adjusting turntable is threadedly installed on the front face of the protection cover, the pressing plate is arranged inside the protection cover, the threaded rod of the threaded adjusting turntable penetrates through the protection cover and is connected to the pressing plate, the protection plate is attached to the back face of the pressing plate, the protection cover is slidingly sleeved outside the display screen, and the protection plate can be slidingly abutted to the front face of the display screen.

[0017] Further, a clamping groove is formed on the clamping block and matched with the clamping ring, a contraction groove is formed on one side of the inner wall of the clamping groove, a pin block is slidingly installed in the contraction groove through a return spring, a pin hole is formed on the other side of the inner wall of the clamping groove, the pin block can be slidingly inserted into the pin hole, and a pull knob is fixed to the top of the pin block and can slidingly penetrate through a slot formed on the top of the clamping block.

[0018] Further, the support assembly comprises a base, a first support rod and a second support rod, the base is fixed at the bottom of the first support rod, a first connecting disc is fixed at the top of the first support rod, a hexagonal pin groove is formed in the center of the first connecting disc, a second connecting disc is fixed at the bottom of the second support rod, a hexagonal pin column is fixed at the bottom of the second connecting disc, the hexagonal pin column and the hexagonal pin groove are inserted and matched, recessed clamping grooves are formed on the first support rod and the second support rod, and protruding clamping blocks are fixed at the upper and lower ends of the back face of the electric guide rail, the protruding clamping blocks and the recessed clamping grooves are clamped and matched.

[0019] Further, a control box is installed on the first support rod, an alarm lamp is arranged on the control box, a mounting block is installed at the top of the second support rod, a mounting cross rod is fixed at the side of the mounting block, dust and noise monitors are installed at the left and right ends of the mounting cross rod, a load-bearing rod in a bent structure is fixed at the top of the mounting block, and a camera is installed at the end of the load-bearing rod.

[0020] A use method of a construction site safety monitoring and early warning device, characterized in that it comprises the following steps:

[0021] Step one: installing the mounting assembly in the construction site, that is, inserting the hexagonal pin column into the hexagonal pin groove, thereby completing the splicing and assembly of the first support rod and the second support rod;

[0022] Step two: installing the lifting assembly on the mounting assembly, that is, clamping the protruding clamping blocks into the recessed clamping grooves, thereby installing the upper and lower ends of the electric guide rail on the first support rod and the second support rod respectively;

[0023] Step three: the mobile assembly is slidingly installed on the front of the lifting assembly, i.e. the block is slidingly installed on the front of the electric guide rail, the ring is connected to the back of the drive box, the ring is buckled into the groove in the block, the pin block is inserted into the pin hole by pulling the pull knob, and the pin block is pressed against the ring, and the connecting rod is connected to the drive box, and the sliding sleeve is slidingly sleeved on the guide rod, so that the drive box is slidingly installed on the front of the electric guide rail;

[0024] Step four: two protection assemblies are unfolded or folded along the display screen, i.e. the drive disc is rotated, the drive screw is spirally rotated in the drive box, and the two I-shaped sliding blocks are slidingly driven by the two threaded sleeves with opposite thread directions along the limiting long holes towards opposite directions, so that the two protection covers that are side by side and cover the outside of the display screen are slidingly driven towards opposite directions, and the display screen is exposed or covered;

[0025] Step five: the electric guide rail control module in the control box is started to drive the electric guide rail to move up and down, drive the drive box to move up and down, and adjust to a specified position;

[0026] Step six: the dust and noise detection instrument control module in the control box is started to control the dust and noise monitoring instrument to monitor the dust concentration and noise intensity in the construction environment of the construction site in real time, the measured data is fed back to the main control unit in the control box for analysis and comparison, and is transmitted to the display screen for real-time display, if the current dust concentration value or noise intensity value exceeds the preset standard value, the main control unit triggers the alarm lamp to perform early warning, and the camera monitors the surrounding environment of the construction site in real time.

[0027] The beneficial effects of the present application are as follows:

[0028] In the present application, the split type can be assembled and connected, the device is not only quickly and efficiently installed and disassembled, but also conveniently and labor-saving transported, used or stored, the driving mechanism provides conditions for the installation of the display screen on the supporting assembly, on the one hand, the lifting assembly in the driving mechanism plays a role in adjusting the position and height of the display screen, which is convenient for the operation and use of the staff, on the other hand, the protection assembly is slidingly matched on the moving assembly in the driving mechanism, and can be slidingly unfolded or covered along the outside of the display screen, which plays a role in protecting the display screen and cleaning the surface of the display screen. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the overall structure of an embodiment of the present application.

[0030] Figure 2 is the driving mechanism, protection assembly and display screen assembly schematic diagram of an embodiment of the present application.

[0031] Figure 3 is the protection assembly and display screen assembly schematic diagram of an embodiment of the present application.

[0032] Figure 4 is the A part enlarged schematic diagram of an embodiment of the present application.

[0033] Figure 5 is the block and ring assembly schematic diagram of an embodiment of the present application.

[0034] Figure 6 is the B part enlarged schematic diagram of an embodiment of the present application.

[0035] Figure 7 is the protection assembly axial side view of an embodiment of the present application.

[0036] Figure 8 is the first support rod axial side view of an embodiment of the present application.

[0037] Figure 9 is the second support rod axial side view of an embodiment of the present application.

[0038] The marks of the components in the drawings are as follows: 1, support assembly; 101, base; 102, first support rod; 103, first connecting disc; 104, hexagonal pin slot; 105, concave clamping slot; 106, second support rod; 107, second connecting disc; 108, hexagonal pin column; 109, mounting block; 1010, mounting cross rod; 1011, bearing rod; 2, control box; 201, alarm lamp; 3, dust and noise monitor; 4, camera; 5, driving mechanism; 6, lifting assembly; 601, electric guide rail; 602, convex clamping block; 603, support cross rod; 604, guide rod; 605, knob; 606, block; 607, ring; 608, connecting rod; 609, sliding sleeve; 6010, pull knob; 6011, pin block; 7, moving assembly; 701, driving box; 702, driving disc; 703, driving screw; 704, limiting long hole; 8, protection assembly; 801, protection cover; 802, pressing plate; 803, protection plate; 804, I-shaped sliding block; 805, connecting block; 806, screw adjusting turntable; 9, display screen; 901, protection frame. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.

[0040] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0041] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, "multiple" means two or more. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0042] Referring to Figures 1-9 .

[0043] The use method of the construction site safety monitoring and early warning device of the present application comprises a display screen 9, and further comprises a support assembly 1, a driving mechanism 5 and a protection assembly 8.

[0044] The driving mechanism 5 comprises a lifting assembly 6 and a moving assembly 7, the lifting assembly 6 is detachably installed on the support assembly 1, the moving assembly 7 is slidingly installed on the lifting assembly 6, the display screen 9 is installed on the moving assembly 7, and the protection assembly 8 has two groups, which are slidingly sleeved on the left and right sides of the display screen 9.

[0045] In the application, the split splicable structure is adopted, the device is not only quickly and efficiently mounted and dismounted, but also conveniently and labor-saving transported, used or stored, the driving mechanism is additionally arranged to provide conditions for mounting the display screen on the supporting assembly, on the one hand, the lifting assembly in the driving mechanism plays a role in lifting and adjusting the position and height of the display screen, which is convenient for the staff to operate and use, on the other hand, the moving assembly in the driving mechanism is slidably matched with the protection assembly, which can be slidably unfolded or covered outside the display screen, which plays a role in protecting the display screen and cleaning the surface of the display screen.

[0046] In an embodiment, the lifting assembly 6 at least comprises an electric guide rail 601, a block 606 and a ring 607, the moving assembly 7 at least comprises a driving box 701, the block 606 is slidably installed on the front face of the electric guide rail 601, the ring 607 is centrally installed on the back face of the driving box 701, and the block 606 and the ring 607 are buckled and matched. In this way, when the device is mounted, used or dismounted and stored, the block 606 and the ring 607 are buckled and matched or loosened, so that the moving assembly 7 and the lifting assembly 6 can be spliced or disassembled, and during use, when the electric guide rail 601 is started and drives the block 606 to move up and down, the driving box 701 can be driven to lift and adjust.

[0047] In an embodiment, the display screen 9 is installed on the front face of the driving box 701, and a protection frame 901 is installed on the periphery of the display screen 9. In this way, when the driving box 701 moves up and down along the electric guide rail 601, the display screen 9 is lifted and adjusted up and down, and the protection frame 901 plays a role in protecting the display screen 9, avoiding damage caused by the complex environment of the device placed in the construction site.

[0048] In an embodiment, the lifting assembly 6 further comprises a supporting cross rod 603, a guide rod 604, a connecting rod 608 and a sliding sleeve 609, the supporting cross rod 603 is fixed on the top of the electric guide rail 601, the guide rod 604 has two rods, which are respectively fixed on the left and right ends of the bottom of the supporting cross rod 603, the connecting rod 608 has two rods, one end of which is respectively connected to the two sides of the back face of the driving box 701, and the other end is fixedly connected to the sliding sleeve 609, the sliding sleeve 609 is slidably sleeved on the periphery of the guide rod 604, and the bottom of the guide rod 604 is provided with a knob 605. In this way, when the driving box 701 moves up and down along the electric guide rail 601, the guide rod 604 and the sliding sleeve 609 between the two sides of the electric guide rail 601 are slidably matched, and the sliding sleeve 609 is connected to the driving box 701 via the connecting rod 608, which is used in combination with the buckling connection of the block 606 and the ring 607, and plays a role in limiting and assisting.

[0049] In an embodiment, the protection assembly 8 comprises a protection cover 801 and an I-shaped sliding block 804, the protection cover 801 is in a rectangular square tube structure, and a back surface is centrally provided with an opening matching the size of the drive box 701, and the I-shaped sliding block 804 is fixed to the end of the inner wall surface of one side of the opening via a connecting block 805;

[0050] The moving assembly 7 further comprises a drive disc 702 and a drive screw 703, the drive disc 702 is fixed to the end of the drive screw 703, the drive screw 703 is spirally rotatable and inserted into the inside of the drive box 701, the top of the drive box 701 is provided with a limiting long hole 704, the drive screw 703 is located inside the limiting long hole 704, two threaded sleeves are centrally threaded on the outside of the drive screw 703, the screw threads of the two threaded sleeves are opposite, the I-shaped sliding block 804 is slidingly installed in the limiting long hole 704, and the bottom of the I-shaped sliding block 804 is fixedly connected to the threaded sleeves. In this way, during use, the drive disc 702 is rotated to make the drive screw 703 spirally rotate in the drive box 701, and the two I-shaped sliding blocks 804 are driven by the two threaded sleeves with opposite screw threads to slide along the limiting long hole 704 in opposite directions, so that the two protection covers 801 arranged side by side outside the display screen 9 slide in opposite directions, respectively, to unfold and expose or combine to cover the display screen 9, thereby strengthening the protection of the display screen 9.

[0051] In an embodiment, the protection assembly 8 further comprises a pressing plate 802, a protection plate 803 and a threaded adjusting turntable 806, the threaded adjusting turntable 806 is threaded on the front surface of the protection cover 801, the pressing plate 802 is arranged inside the protection cover 801, the threaded rod of the threaded adjusting turntable 806 penetrates through the protection cover 801 and is connected to the pressing plate 802, the protection plate 803 is attached to the back surface of the pressing plate 802, the protection cover 801 is slidingly sleeved outside the display screen 9, and the protection plate 803 can be slidingly abutted to the front surface of the display screen 9. In this way, in actual use, the protection cover 801 is slidingly sleeved outside the display screen 9, the threaded adjusting turntable 806 is rotated to adjust the tightness of the contact between the pressing plate 802 and the display screen 9, and the protection plate 803 plays a protective role for the screen of the display screen 9 to prevent crushing and damage.

[0052] In an embodiment, the block 606 is provided with a groove matched with the buckle of the ring 607, and a contraction groove is formed on one side of the inner wall of the groove, and a pin block 6011 is slidably installed in the contraction groove through a return spring, and a pin hole is formed on the other side of the inner wall of the groove, the pin block 6011 can be slidably inserted into the pin hole, and a pull button 6010 is fixed on the top of the pin block 6011, and the pull button 6010 can be slidably inserted into the slot formed on the top of the block 606. In this way, when the block 606 is slidably installed on the front of the electric guide rail 601, the ring 607 is connected to the back of the drive box 701, the ring 607 is buckled into the groove in the block 606, the pull button 6010 is pulled to drive the pin block 6011 to be inserted into the pin hole, and the pin block 6011 is pressed against the ring 607, so that the drive box 701 is slidably installed on the front of the electric guide rail 601, which is fast, efficient, convenient and labor-saving.

[0053] In an embodiment, the support assembly 1 includes a base 101, a first support rod 102 and a second support rod 106, the base 101 is fixed at the bottom of the first support rod 102, the top of the first support rod 102 is fixed with a first connecting disc 103, the first connecting disc 103 is centrally provided with a hexagonal pin groove 104, the bottom of the second support rod 106 is fixed with a second connecting disc 107, the bottom of the second connecting disc 107 is fixed with a hexagonal pin column 108, the hexagonal pin column 108 and the hexagonal pin groove 104 are inserted and matched, the first support rod 102 and the second support rod 106 are both fixed with a concave clamping groove 105, the upper and lower ends of the back of the electric guide rail 601 are both fixed with a convex clamping block 602, and the convex clamping block 602 and the concave clamping groove 105 are clamped and matched. In this way, if the installation assembly 1 needs to be installed in a construction site, the hexagonal pin column 108 is inserted into the hexagonal pin groove 104, and the first connecting disc 103 and the second connecting disc 107 are threadedly connected, so that the first support rod 102 and the second support rod 106 can be assembled, which is fast in installation and disassembly, and convenient in transportation, use or storage.

[0054] In an embodiment, the first support rod 102 is provided with a control box 2, the control box 2 is provided with an alarm lamp 201, the top of the second support rod 106 is provided with a mounting block 109, the side of the mounting block 109 is fixedly provided with a mounting cross rod 1010, the left and right ends of the mounting cross rod 1010 are both provided with a dust and noise monitor 3, the top of the mounting block 109 is fixedly provided with a bearing rod 1011 in a bent structure, and the end of the bearing rod 1011 is provided with a camera 4. In this way, when the device is used in a construction site, on the one hand, the camera 4 is started to monitor the surrounding environment of the construction site in real time, and the video analog signal is transmitted to the display screen 9 through the main control unit in the control box 2 for real-time display; on the other hand, the dust and noise detection module in the control box 2 is started to connect and control the dust and noise monitor 3 to monitor the dust concentration and noise intensity in the construction environment of the construction site, and the measured data is fed back to the main control unit in the control box 2 for analysis and comparison, and is transmitted to the display screen 9 for real-time display. If the current dust concentration value or noise intensity value exceeds the preset standard value, the main control unit triggers the alarm lamp 201 to perform early warning work.

[0055] A use method of a construction site safety monitoring and early warning device is characterized in that the use method comprises the following steps:

[0056] Step one: installing the mounting assembly 1 in a construction site, that is, inserting the hexagonal pin column 108 into the hexagonal pin groove 104, so as to complete the splicing and assembly of the first support rod 102 and the second support rod 106;

[0057] Step two: installing the lifting assembly 6 on the mounting assembly 1, that is, clamping the convex clamping block 602 into the concave clamping groove 105, so that the upper and lower ends of the electric guide rail 601 are respectively installed on the first support rod 102 and the second support rod 106;

[0058] Step three: slidingly installing the moving assembly 7 on the front surface of the lifting assembly 6, that is, slidingly installing the clamping block 606 on the front surface of the electric guide rail 601, connecting the clamping ring 607 to the back surface of the driving box 701, clamping the clamping ring 607 into the clamping groove in the clamping block 606, pulling the pull knob 6010 to drive the pin block 6011 to be inserted into the pin hole, and making the pin block 6011 abut against the clamping ring 607, simultaneously, connecting the connecting rod 608 to the driving box 701, and slidingly sleeving the sliding sleeve 609 on the guide rod 604, so that the driving box 701 is slidingly installed on the front surface of the electric guide rail 601;

[0059] Step four: two said protection components 8 along the display screen 9 unfolding or folding, namely rotating the drive disc 702, so that the drive screw 703 in the drive box 701 screw rotation, two said I-beam slider 804 in two with opposite thread direction of the threaded sleeve driven by the limit long hole 704 to the left and right opposite direction sliding, so that two said protection cover 801 respectively cover the display screen 9 outside the two opposite direction sliding, in turn, expose or cover the display screen 9;

[0060] Step five: start the electric guide rail control module in the control box 2, drive the electric guide rail 601 up and down, drive the drive box 701 to move up and down, until adjusted to the specified position;

[0061] Step six: start the dust and noise detector control module in the control box 2, real-time connection and control the dust and noise monitor 3 to monitor the dust concentration and noise intensity in the construction site environment, the measured data is fed back to the main control unit in the control box 2 for analysis and comparison, and is transmitted to the display screen 9 for real-time display, if the current dust concentration value or noise intensity value exceeds the preset standard value, the main control unit triggers the alarm lamp 201 to perform early warning work, at the same time, the camera 4 monitors the surrounding environment of the construction site in real time.

[0062] It should be understood that the examples and embodiments described herein are only for illustration and are not intended to limit the present application, and those skilled in the art can make various modifications or changes according to it, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A construction site safety monitoring and early warning device comprising a display screen (9), characterized in that: It also includes support assembly (1), drive mechanism (5) and protection assembly (8); The drive mechanism (5) includes lifting assembly (6) and moving assembly (7), the lifting assembly (6) is detachably installed on the support assembly (1), the moving assembly (7) is slidingly installed on the lifting assembly (6), the display screen (9) is installed on the moving assembly (7), the protection assembly (8) has two groups, which are slidingly sleeved on the left and right sides of the display screen (9) respectively; The lifting assembly (6) at least includes electric guide rail (601), block (606) and ring (607), the moving assembly (7) at least includes drive box (701), the block (606) is slidingly installed on the front of the electric guide rail (601), the ring (607) is centrally installed on the back of the drive box (701), the block (606) and ring (607) are snap matched; The protection assembly (8) includes protection cover (801), I-shaped sliding block (804), pressing plate (802), protection plate (803) and screw adjusting turntable (806), the protection cover (801) is rectangular square tubular structure, and the back surface is centrally provided with an opening matched with the size of the drive box (701), the I-shaped sliding block (804) is fixed to the end of the inner wall surface of one side of the opening via the connecting block (805); the screw adjusting turntable (806) is threadedly installed on the front of the protection cover (801), the pressing plate (802) is arranged in the protection cover (801), the threaded rod of the screw adjusting turntable (806) passes through the protection cover (801) and is connected to the pressing plate (802), the protection plate (803) is attached to the back of the pressing plate (802), the protection cover (801) is slidingly sleeved on the outside of the display screen (9), and the protection plate (803) can be slidingly contacted to the front of the display screen (9); The moving assembly (7) further includes drive disc (702) and drive screw (703), the drive disc (702) is fixed to the end of the drive screw (703), the drive screw (703) is spirally rotatable and inserted into the inside of the drive box (701), the drive box (701) is provided with a limiting long hole (704) in the top, the drive screw (703) is located in the limiting long hole (704), two threaded sleeves are centrally threadedly sleeved on the outside of the drive screw (703), the threaded directions of the two threaded sleeves are opposite, the I-shaped sliding block (804) is slidingly installed in the limiting long hole (704), and the bottom of the I-shaped sliding block (804) is fixedly connected to the threaded sleeve.

2. The construction site safety monitoring and early warning device of claim 1, wherein: The display screen (9) is installed on the front of the drive box (701), and a protection frame (901) is installed on the periphery of the display screen (9).

3. The construction site safety monitoring and early warning device of claim 2, wherein: The lifting assembly (6) further comprises a support cross bar (603), guide rods (604), connecting rods (608) and a sliding sleeve (609), the support cross bar (603) is fixed at the top of the electric guide rail (601), the guide rods (604) are two, respectively fixed at the left and right ends of the bottom of the support cross bar (603), the connecting rods (608) are two, one end of which is respectively connected to the two sides of the back of the driving box (701), the other end of which is fixedly connected to the sliding sleeve (609), the sliding sleeve (609) is slidably sleeved on the periphery of the guide rod (604), and the bottom of the guide rod (604) is provided with a rotary knob (605).

4. The construction site safety monitoring and early warning device of claim 3, wherein: A clamping groove is formed on the clamping block (606) and matched with the clamping ring (607), a contraction groove is formed on one side of the inner wall of the clamping groove, a pin block (6011) is slidably installed in the contraction groove through a return spring, a pin hole is formed on the other side of the inner wall of the clamping groove, the pin block (6011) can be slidably inserted into the pin hole, and a pull knob (6010) is fixed on the top of the pin block (6011), and the pull knob (6010) can be slidably inserted into the slot formed on the top of the clamping block (606).

5. The construction site safety monitoring and early warning device of claim 4, wherein: The support assembly (1) comprises a base (101), a first support rod (102) and a second support rod (106), the base (101) is fixed at the bottom of the first support rod (102), the top of the first support rod (102) is fixed with a first connecting disc (103), the first connecting disc (103) is centrally provided with a hexagonal pin groove (104), the bottom of the second support rod (106) is fixed with a second connecting disc (107), the bottom of the second connecting disc (107) is fixed with a hexagonal pin column (108), the hexagonal pin column (108) and the hexagonal pin groove (104) are inserted and matched, the first support rod (102) and the second support rod (106) are both fixed with a concave clamping groove (105), the upper and lower ends of the back of the electric guide rail (601) are both fixed with a convex clamping block (602), and the convex clamping block (602) and the concave clamping groove (105) are clamped and matched.

6. The construction site safety monitoring and early warning device of claim 5, wherein: The first support rod (102) is provided with a control box (2), the control box (2) is provided with an alarm lamp (201), the top of the second support rod (106) is provided with a mounting block (109), the side of the mounting block (109) is fixed with a mounting cross bar (1010), the left and right ends of the mounting cross bar (1010) are both provided with a dust and noise monitoring instrument (3), the top of the mounting block (109) is fixed with a load-bearing rod (1011) in a bent structure, and the end of the load-bearing rod (1011) is provided with a camera (4).

7. The method of using a construction site safety monitoring and warning device of claim 6, wherein: The steps include: Step one: install the support assembly (1) in the construction site, that is, insert the hexagonal pin column (108) into the hexagonal pin groove (104), so as to complete the splicing and assembly of the first support rod (102) and the second support rod (106); Step two: install the lifting assembly (6) on the support assembly (1), that is, the convex clamping block (602) is clamped to the inside of the concave clamping groove (105), so that the upper and lower ends of the electric guide rail (601) are installed on the first support rod (102) and the second support rod (106) respectively; Step three: slide the moving assembly (7) to the front of the lifting assembly (6), that is, the clamping block (606) is slide installed on the front of the electric guide rail (601), the clamping ring (607) is connected to the back of the drive box (701), the clamping ring (607) is buckled to the clamping groove in the clamping block (606), the pull knob (6010) is pulled to drive the pin block (6011) to insert into the pin hole, and the pin block (6011) is pressed against the clamping ring (607), at the same time, the connecting rod (608) is connected to the drive box (701), and the sliding sleeve (609) is slide installed on the guide rod (604), so that the drive box (701) is slide installed on the front of the electric guide rail (601); Step four: expand or retract the two protection assemblies (8) along the display screen (9), that is, rotate the drive disc (702), so that the drive screw (703) rotates spirally in the drive box (701), and the two I-shaped sliding blocks (804) slide in the opposite directions along the limiting long hole (704) under the drive of the two threaded sleeves with opposite screw directions, so that the two protection covers (801) covering the display screen (9) slide in the opposite directions respectively, and then the display screen (9) is exposed or covered; Step five: start the electric guide rail control module in the control box (2), drive the electric guide rail (601) to run up and down, drive the drive box (701) to move up and down, and adjust to the specified position; Step six: start the dust and noise detector control module in the control box (2), connect and control the dust and noise detector (3) in real time to monitor the dust concentration and noise intensity in the construction environment of the construction site, the measured data is fed back to the main control unit in the control box (2) for analysis and comparison, and is transmitted to the display screen (9) for real-time display, if the current dust concentration value or noise intensity value exceeds the preset standard value, the main control unit triggers the alarm lamp (201) to perform early warning work, and the camera (4) monitors the surrounding environment of the construction site in real time.

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