A residential construction management device based on BIM

Abstract

The present invention discloses a residential construction management device based on BIM, including a support plate fixed on the upper end of a base, a monitoring device is installed on the upper end of the support plate, a lens is provided on the side wall of the monitoring device, the side wall of the support plate is fixedly connected to a fixed frame through a plurality of brackets, the fixed frame is circular, the side wall of the fixed frame is sealed and fitted with the side wall of the monitoring device, a through groove is provided on the side wall of the fixed frame, the lens passes through the through groove, and a protective mechanism for protecting the lens is provided on the fixed frame; the protective mechanism includes a protective plate that is sealed and rotatably connected to the inner wall of the fixed frame through a rotating shaft. The present invention increases the shooting effect of the monitoring device by only cleaning the surface of the glass plate, and the cleaning is performed away from the lens. Compared with the existing operation, the lens part will not be blocked to hinder its normal shooting, and the surface of the lens will not be scratched to affect its shooting clarity.

Description

Technical Field

[0001] The present invention relates to the technical field of construction management, and in particular to a residential construction management device based on BIM. Background Art

[0002] BIM is mainly used for the integrated management of construction projects, which can improve efficiency and reduce risks in the construction process. During use, the construction site will be monitored in real time through monitoring equipment. In order to ensure construction safety, the monitoring equipment and detection system will be coordinated to ensure the safety of the construction site in real time.

[0003] Currently, when BIM is implemented, monitoring equipment will be installed around the construction site to detect the construction. Due to the characteristics of the current construction, a large amount of dust will float in the construction environment, which will easily cause a large amount of dust to adhere to the lens of the monitoring equipment, thereby affecting its monitoring effect. The current operations are all done by manual wiping or manually controlled equipment for wiping. For example, in the patent "A construction area monitoring device for on-site construction management based on BIM" with application number "202110524246.9", it performs a series of cleanings after manually pressing the button on the upper side of the switch. However, during the cleaning process, the brush and sponge block will inevitably move on the surface of the lens, blocking part of the lens and hindering its normal shooting. Directly wiping the lens can easily cause scratches on the surface of the lens, affecting its shooting clarity. At the same time, it requires staff to operate based on their own judgment, and cannot clean it by themselves according to the amount of dust on the lens surface, which can easily lead to untimely cleaning. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a residential construction management device based on BIM.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A residential construction management device based on BIM, comprising a support plate fixed to the upper end of a base, a monitoring device is installed on the upper end of the support plate, a lens is arranged on the side wall of the monitoring device, a fixing frame is fixedly connected to the side wall of the support plate through a plurality of brackets, the fixing frame is circular, the side wall of the fixing frame is sealed and fitted with the side wall of the monitoring device, a through groove is opened on the side wall of the fixing frame, the lens passes through the through groove, and a protective mechanism for protecting the lens is arranged on the fixing frame;

[0007] The protection mechanism comprises a protection plate which is connected to the inner wall of the fixed frame through a rotating shaft and is sealed and rotated. The side wall of the protection plate close to the lens is provided with an annular groove. Two glass plates are embedded in the inner wall of the annular groove. The angle between the two glass plates is 180°. The lens is directly opposite to one of the glass plates. The support plate is provided with a rotating mechanism which drives the rotating shaft to rotate half a circle.

[0008] The rotating mechanism includes a one-way bearing, a groove is formed on the upper end of the support plate, a first plate is sealingly and slidably connected to the inner wall of the groove, a toothed plate is fixedly connected to the upper end of the first plate, one end of the rotating shaft passes through the side wall of the support plate and extends into the groove, the side wall of the rotating shaft in the groove is fixedly connected to the side wall of the inner ring of the one-way bearing, the side wall of the outer ring of the one-way bearing is fixedly connected to a gear meshing with the toothed plate, the lower end of the first plate is elastically connected to the bottom of the groove by a plurality of first springs, and a sliding mechanism for driving the first plate to slide is provided in the groove.

[0009] Preferably, the sliding mechanism includes a heating tube fixedly connected to the bottom of the groove through a bracket, a driving chamber is formed between the lower end of the first plate and the inner wall of the groove, the heating tube is located in the driving chamber, a thermal expansion and contraction liquid is provided in the driving chamber, a plurality of heat sinks are fixedly connected to the inner wall of the driving chamber, two photoresistors are fixedly connected to the inner walls of the annular groove facing the two glass plates, the two photoresistors, the heating tube and the external power supply are connected in series, a plurality of second plates bonded to the lower surface of the first plate are fixedly connected to the inner wall of the driving chamber, and a plurality of third plates bonded to the upper surface of the first plate are fixedly connected above the inner wall of the groove.

[0010] Preferably, the first plate is provided with a locking mechanism for locking its position, and the locking mechanism includes two sliding grooves respectively opened on the side walls on both sides of the first plate, the inner walls of the sliding grooves are sealingly and slidably connected with a clamping plate, the side walls of the clamping plate are elastically connected to the inner walls of the sliding grooves through a second spring, and the inner wall of the groove is provided with two clamping grooves opposite to the two sliding grooves, and the side walls of the clamping plate are tightly fitted with the inner walls of the clamping grooves.

[0011] Preferably, a pressure sensor is embedded at the lower end of the first plate, and the pressure sensor, the second spring and the external power supply are connected in series.

[0012] Preferably, a closing mechanism for closing the two card slots is provided therein, the closing mechanism comprises two sealing plates respectively sealingly and slidably connected in the two card slots, a control slot is opened below the side wall of the support plate, an electromagnetic push rod is fixedly connected to the top of the control slot, the movable end of the electromagnetic push rod is fixedly connected to the control plate, two U-shaped rods are respectively slidably connected between the control slot and the inner walls of the two card slots, one end of the U-shaped rod located in the card slot is fixedly connected to the corresponding side wall of the sealing plate, and the lower end of the control plate is rotatably connected to the side walls of the two U-shaped rods located in the control slot through two control rods.

[0013] Preferably, a power supply mechanism for turning power on and off the electromagnetic push rod is provided in the groove, and the power supply mechanism includes a fourth plate fixedly connected to the side wall of the tooth plate, a telescopic bag is fixedly connected between the fourth plate and one of the third plates, and a first conductive rod and a second conductive rod are fixedly connected to the top and bottom of the telescopic bag respectively, and the electromagnetic push rod, the first conductive rod, the second conductive rod and the external power supply are connected in series.

[0014] Preferably, the support plate is provided with a cleaning mechanism for cleaning the glass plate located below, the cleaning mechanism includes an electric slide rail fixedly connected to the side wall of the support plate through a bracket, a cleaning plate is installed on the electric slide rail, cleaning cotton is glued to the side wall of the cleaning plate, a water pump is installed on the upper end of the base, the output end of the water pump is connected to the upper side wall of the cleaning plate through a water outlet pipe, and the pressure sensor, the electric slide rail and the water pump are connected in series and then connected to an external power supply through a power-off delay relay.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1: By setting up a protective mechanism and a rotating mechanism, only the surface of the glass plate can be cleaned to increase the shooting effect of the monitoring equipment, and the cleaning operation will be kept away from the lens. Compared with the existing operation, the lens part will not be blocked to hinder its normal shooting, and the lens surface will not be scratched to affect its shooting clarity.

[0017] 2: By setting up a sliding mechanism and a locking mechanism, when there is a lot of dust on the glass plate facing the lens, the first plate can slide upward and the positions of the two glass plates can be replaced automatically without the need for manual autonomous judgment, so that the two glass plates can be replaced in time.

[0018] 3: By setting up a locking mechanism, the first plate will not move up when the thermal expansion and contraction liquid evaporates due to heat, which can prevent the slow rotation of the protective plate from causing the inner wall of the annular groove to face the lens, thereby increasing the continuous shooting effect of the monitoring equipment.

[0019] 4: By setting up a sealing mechanism, the thermal expansion and contraction fluid in the driving chamber can be prevented from entering the card slot, resulting in a reduction in the subsequent use of the thermal expansion and contraction fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a residential construction management device based on BIM proposed by the present invention;

[0021] Figure 2 for Figure 1 Structural schematic diagram of the sliding mechanism, the engaging mechanism and the closing mechanism;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure enlargement at the center A;

[0023] Figure 4 for Figure 1 The right side structural diagram of the middle protection mechanism;

[0024] Figure 5 for Figure 3 Schematic diagram of the structure of the meshing of the middle tooth plate and the gear;

[0025] Figure 6 for Figure 2 Schematic diagram of the state structure of the engaging mechanism and the closing mechanism after the first plate moves up.

[0026] In the figure: 1 support plate, 2 monitoring equipment, 3 lens, 4 fixing frame, 5 through groove, 6 rotating shaft, 7 protection plate, 8 annular groove, 9 glass plate, 10 photoresistor, 11 groove, 12 first plate, 13 driving chamber, 14 tooth plate, 15 one-way bearing, 16 gear, 17 first spring, 18 heating tube, 19 heat sink, 20 second plate, 21 third plate, 22 slide groove, 23 card groove, 24 card plate, 25 second spring, 26 sealing plate, 27 pressure sensor, 28 control groove, 29 U-shaped rod, 30 electromagnetic push rod, 31 control plate, 32 control rod, 33 fourth plate, 34 telescopic bag, 35 first conductive rod, 36 second conductive rod, 37 electric slide rail, 38 cleaning plate, 39 cleaning cotton, 40 water pump, 41 water outlet pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1 A residential construction management device based on BIM includes a support plate 1 fixed on the upper end of a base, a monitoring device 2 is installed on the upper end of the support plate 1, and a lens 3 is provided on the side wall of the monitoring device 2. It should be noted that the monitoring device 2 can take pictures of the residential construction situation and transmit them to an external detection system for monitoring and management, which is a prior art.

[0029] Reference Figure 1 and Figure 4The side wall of the support plate 1 is fixedly connected to a fixing frame 4 through a plurality of brackets. The fixing frame 4 is circular in shape. The side wall of the fixing frame 4 is sealed and fitted with the side wall of the monitoring device 2. A through groove 5 is provided on the side wall of the fixing frame 4. The lens 3 passes through the through groove 5. A protective mechanism for protecting the lens 3 is provided on the fixing frame 4. The protective mechanism includes a protective plate 7 that is sealed and rotatably connected to the inner wall of the fixing frame 4 through a rotating shaft 6. The side wall of the protective plate 7 near the lens 3 is provided with an annular groove 8. Two glass plates 9 are embedded in the inner wall of the annular groove 8. The angle between the two glass plates 9 is 180°. The lens 3 is in contact with one of the glass plates. The glass plate 9 is facing the lens 3, so when the glass plate 9 facing the lens 3, that is, located above, is dirty, the protective plate 7 can be rotated half a circle at this time, so that the glass plate 9 located below is rotated to the top to face the lens 3, and the surface of the glass plate 9 rotated to the bottom can be cleaned at the same time. In this way, only the surface of the glass plate 9 can be cleaned to increase the shooting effect of the monitoring device 2, and the cleaning operation will be carried out away from the lens 3. Compared with the existing operation, the lens part will not be blocked to hinder its normal shooting, and the surface of the lens will not be scratched, thereby affecting its shooting clarity.

[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 A rotating mechanism for driving the rotating shaft 6 to rotate half a circle is provided on the support plate 1, and the rotating mechanism includes a one-way bearing 15. A groove 11 is opened at the upper end of the support plate 1, and a first plate 12 is sealingly and slidably connected to the inner wall of the groove 11. A toothed plate 14 is fixedly connected to the upper end of the first plate 12. One end of the rotating shaft 6 passes through the side wall of the support plate 1 and extends into the groove 11. The side wall of the rotating shaft 6 located in the groove 11 is fixedly connected to the inner ring side wall of the one-way bearing 15, and the outer ring side wall of the one-way bearing 15 is fixedly connected to a gear 16 meshing with the toothed plate 14. The lower end of the first plate 12 is elastically connected to the bottom of the groove 11 through a plurality of first springs 17, and a plurality of third plates 21 that fit the upper surface of the first plate 12 are fixedly connected above the inner wall of the groove 11.

[0031] It should be noted that when the tooth plate 14 moves upward, the gear 16 drives the outer ring of the one-way bearing 15 to rotate, and then the outer ring of the one-way bearing 15 drives its inner ring to rotate, and then drives the rotating shaft 6 to rotate. When the tooth plate 14 moves downward, the outer ring of the one-way bearing 15 no longer drives its inner ring to rotate, and then the rotating shaft 6 no longer rotates. At the same time, when the first plate 12 moves to the point where its upper surface is in contact with the lower surface of the third plate 21, under the action of the one-way bearing 15, the tooth plate 14 just drives the gear 16 to rotate half a circle, thereby replacing the positions of the two symmetrical glass plates 9.

[0032] Reference Figure 1 and Figure 2A sliding mechanism for driving the first plate 12 to slide is provided in the groove 11, and the sliding mechanism includes a heating tube 18 fixedly connected to the bottom of the groove 11 through a bracket. A driving chamber 13 is formed between the lower end of the first plate 12 and the inner wall of the groove 11. The heating tube 18 is located in the driving chamber 13. A thermal expansion and contraction liquid is provided in the driving chamber 13. Further, the thermal expansion and contraction liquid can be a dichloromethane solution, which will evaporate when heated. At the same time, the driving chamber 13 is a closed space, so that when the dichloromethane solution is located in the driving chamber 13 after the device is produced, the dichloromethane solution will not leak from the driving chamber 13. A plurality of heat sinks 19 are fixedly connected to the inner wall of the driving chamber 13. Two photoresistors 10 are fixedly connected to the inner walls of the annular groove 8 facing the two glass plates 9 respectively. The two photoresistors 10, the heating tube 18 and the external power supply are connected in series. A plurality of second plates 20 that are in contact with the lower surface of the first plate 12 are fixedly connected to the inner wall of the driving chamber 13, and the initial position of the first plate 12 can be solidified.

[0033] Furthermore, the resistance of the photoresistor 10 decreases as the light intensity decreases. When the glass plate 9 directly opposite to the lens 3 is clean, the light intensity received by the photoresistor 10 at this location is large. At this time, the resistance of the two photoresistors 10 connected in series is large, and then the current flowing through the heating tube 18 is small, and then the heat generated per unit time on the heating tube 18 is small, and the heat generated is much smaller than the heat dissipated by the multiple heat sinks 19 per unit time, and then the thermal expansion and contraction liquid will not expand. When there is a lot of dust on the glass plate 9 directly opposite to the lens 3, the light intensity received by the photoresistor 10 at this location is small, and at this time, the resistance of the two photoresistors 10 connected in series is small, and then the current flowing through the heating tube 18 is large, and then the heat generated per unit time on the heating tube 18 is large, and the heat generated is much larger than the heat dissipated by the multiple heat sinks 19 per unit time, and then the thermal expansion and contraction liquid will evaporate into gas after heating and expand, causing the pressure in the driving chamber 13 to increase.

[0034] Furthermore, a heat insulating material may be embedded in the support plate 1 to prevent the thermal expansion and contraction liquid from exchanging heat with the outside through the support plate 1 .

[0035] Reference Figure 2 The first plate 12 is provided with a locking mechanism for locking its position, and the locking mechanism includes two slide grooves 22 respectively opened on the side walls of both sides of the first plate 12, and the inner wall of the slide groove 22 is sealed and slidably connected with a clamping plate 24, and the side wall of the clamping plate 24 is elastically connected to the inner wall of the slide groove 22 through a second spring 25. The inner wall of the groove 11 is provided with two clamping grooves 23 that are opposite to the two slide grooves 22, and the side wall of the clamping plate 24 is tightly fitted with the inner wall of the clamping groove 23.

[0036] A pressure sensor 27 is embedded at the lower end of the first plate 12 , and the pressure sensor 27 , the second spring 25 and the external power supply are connected in series.

[0037] Furthermore, the increase in pressure in the driving chamber 13 will exert pressure on the pressure sensor 27. When the pressure on the pressure sensor 27 reaches its set value, the pressure sensor 27 will energize the two second springs 25, and then the two second springs 25 will be energized and contracted, so that the two clamping plates 24 are all moved into the slide groove 22 and separated from the clamping groove 23, and the position of the first plate 12 is no longer fixed, so that under the action of the pressure in the driving chamber 13, the first plate 12 will slide upward quickly, and the positions of the two glass plates 9 will be automatically replaced, without the need for manual autonomous judgment operation, so that the replacement of the two glass plates 9 is timely;

[0038] Such a design prevents the first plate 12 from moving upward when the thermal expansion and contraction fluid evaporates due to heat, and prevents the slow rotation of the protective plate 7 causing the inner wall of the annular groove 8 to face the lens 3, thereby increasing the continuous shooting effect of the monitoring device 2.

[0039] It should be noted that when the second spring 25 is energized, the second spring 25 is equivalent to an energized solenoid, each turn of the spring is equivalent to a circular current, and the current direction in each turn of the spring is the same. According to the mutual attraction between currents in the same direction, each turn of the spring attracts the adjacent spring, so the second spring 25 will shrink as a whole, which is the prior art.

[0040] Reference Figure 2 A closing mechanism is provided in the two card slots 23 to close them, and the closing mechanism includes two sealing plates 26 respectively sealingly and slidably connected in the two card slots 23. A control slot 28 is opened below the side wall of the support plate 1, and an electromagnetic push rod 30 is fixedly connected to the top of the control slot 28. A control plate 31 is fixedly connected to the movable end of the electromagnetic push rod 30. Two U-shaped rods 29 are respectively slidably connected between the control slot 28 and the inner walls of the two card slots 23. One end of the U-shaped rod 29 located in the card slot 23 is fixedly connected to the side wall of the sealing plate 26 corresponding to it, and the lower end of the control plate 31 is rotatably connected to the side walls of the two U-shaped rods 29 located in the control slot 28 through two control rods 32.

[0041] Reference Figure 3 A power supply mechanism for turning on and off power to the electromagnetic push rod 30 is provided in the groove 11, and the power supply mechanism includes a fourth plate 33 fixedly connected to the side wall of the tooth plate 14, and a telescopic bag 34 is fixedly connected between the fourth plate 33 and one of the third plates 21, and a first conductive rod 35 and a second conductive rod 36 are fixedly connected to the top and bottom of the telescopic bag 34 respectively. The telescopic bag 34 can protect the first conductive rod 35 and the second conductive rod 36, and the electromagnetic push rod 30, the first conductive rod 35, the second conductive rod 36 and the external power supply are connected in series.

[0042] It should be noted that a through hole connected to the upper end of the first plate 12 is opened at the top of the slide groove 22 near the second spring 25, so that the card plate 24 can slide stably in the slide groove 22, and a through hole connected to the side wall of the support plate 1 is opened on the inner wall of the card groove 23, so that the sealing plate 26 can slide stably in the card groove 23.

[0043] Furthermore, the electromagnetic push rod 30 is an action actuator that uses the working characteristics of the electromagnet to realize the linear reciprocating motion of the push rod, and its driving force is strong and stable. It is a prior art. When the first plate 12 moves upward, the first conductive rod 35 and the second conductive rod 36 will separate, and then the electromagnetic push rod 30 will be powered off and contracted, so that the two fourth plates 33 are close to each other, and when the electromagnetic push rod 30 is contracted to the initial state, the side walls of the two sealing plates 26 are in contact with the inner wall of the groove 11, as shown in FIG. Figure 6 As shown, this can prevent the thermal expansion and contraction fluid in the driving chamber 13 from entering the card slot 23, resulting in a reduction in the subsequent usage of the thermal expansion and contraction fluid.

[0044] Reference Figure 1 A cleaning mechanism for cleaning the glass plate 9 located below is provided on the support plate 1, and the cleaning mechanism includes an electric slide rail 37 fixedly connected to the side wall of the support plate 1 through a bracket, and a cleaning plate 38 is installed on the electric slide rail 37, and cleaning cotton 39 is glued to the side wall of the cleaning plate 38. Furthermore, the side wall of the cleaning cotton 39 is in contact with the side wall of the glass plate 9, and a water pump 40 is installed on the upper end of the base. The output end of the water pump 40 is connected to the upper side wall of the cleaning plate 38 through a water outlet pipe 41. The pressure sensor 27, the electric slide rail 37 and the water pump 40 are connected in series and then connected to the external power supply through a power-off delay relay.

[0045] It should be noted that the electric slide rail 37 can drive the cleaning plate 38 to move forward and backward, which is a prior art. At the same time, the cleaning cotton 39 can completely cover the glass plate 9 located below, so that the resistance value of the photoresistor 10 located below will not be affected by external light and change. When the pressure on the pressure sensor 27 is lower than its limit value, the power to the electric slide rail 37 and the water pump 40 will be cut off. At this time, under the action of the power-off delay relay, the electric slide rail 37 and the water pump 40 can stop working after working for a period of time, and then the glass plate 9 rotated to the bottom can be effectively cleaned.

[0046] It is worth noting that there is a certain friction force at the rotation point between the rotating shaft 6 and the support plate 1 and the side wall of the fixed frame 4, so that when the cleaning cotton 39 wipes back and forth for cleaning, the position of the protective plate 7 remains stable.

[0047] In the present invention, during the residential construction process, the monitoring device 2 can take pictures of the residential construction situation through the lens 3 and transmit them to the external detection system for BIM monitoring and management;

[0048] When there is a lot of dust on the glass plate 9 facing the lens 3, the light intensity received by the photoresistor 10 there is small, and the resistance of the two photoresistors 10 connected in series in the annular groove 8 is small, so the current flowing through the heating tube 18 is large, and the heat generated per unit time on the heating tube 18 is large, and the heat generated is much greater than the heat dissipated per unit time by the multiple heat sinks 19, and the thermal expansion and contraction liquid will evaporate into gas expansion after heating, so that the pressure in the driving chamber 13 gradually increases. At this time, the gradually increasing pressure in the driving chamber 13 will exert pressure on the pressure sensor 27. When the pressure on the pressure sensor 27 reaches its set value, the pressure sensor 27 will energize the two second springs 25, and then the two second springs 25 will be energized and contracted, so that the two card plates 24 are all moved into the slide groove 22 and separated from the card groove 23, and then the position of the first plate 12 is no longer fixed, so that under the action of the pressure in the driving chamber 13, the first plate 12 will slide upward rapidly at this time;

[0049] At this time, the toothed plate 14 will drive the outer ring of the one-way bearing 15 to rotate through the gear 16, and then the outer ring of the one-way bearing 15 drives its inner ring to rotate, and then drives the rotating shaft 6 to rotate. When the first plate 12 moves to the point where its upper surface fits the lower surface of the third plate 21, the rotating shaft 6 just rotates half a circle, and then the protective plate 7 rotates half a circle to replace the positions of the two symmetrical glass plates 9, rotating the dusty glass plate 9 to the bottom and the clean glass plate 9 to the top. In this way, the positions of the two glass plates 9 are automatically replaced, which increases the shooting effect of the monitoring device 2, does not require manual autonomous judgment operation, and makes the replacement of the two glass plates 9 timely;

[0050] When the first plate 12 slides upward, the fourth plate 33 drives the second conductive rod 36 to separate from the first conductive rod 35, and then the electromagnetic push rod 30 is de-energized and retracted, so that the control board 31 drives the two U-shaped rods 29 to approach each other through the two control boards 32, and then the two fourth plates 33 approach each other, and when the electromagnetic push rod 30 is retracted to the initial state, the side walls of the two sealing plates 26 are in contact with the inner wall of the groove 11, as shown in FIG. Figure 6 As shown, this can prevent the thermal expansion and contraction liquid in the driving chamber 13 from entering the card slot 23, resulting in a reduction in the subsequent use of the thermal expansion and contraction liquid;

[0051] At the same time, when the pressure on the pressure sensor 27 reaches its set value, the electric slide 37 will drive the cleaning plate 38 and the cleaning cotton 39 to move forward and backward, and the water pump 40 will pump water to the glass plate 9 through the water outlet pipe 41, thereby increasing the cleaning effect of the glass plate 9. After the first plate 12 quickly slides up to replace the positions of the two glass plates 9, the pressure on the pressure sensor 27 will be reduced to below its limit value, and the electric slide 37 and the water pump 40 will be powered off. At this time, under the action of the power-off delay relay, the electric slide 37 and the water pump 40 can stop working after working for a period of time, so that the glass plate 9 rotated to the bottom can be effectively cleaned. It only cleans the surface of the glass plate 9 to increase the shooting effect of the monitoring device 2, and it will be operated away from the lens 3 during cleaning. Compared with the existing operation, it will not block the lens part to hinder its normal shooting, and it will not scratch the surface of the lens, thereby affecting its shooting clarity;

[0052] After the clean glass plate 9 rotates to the top, the light intensity received by the photoresistor 10 at this location is large, and the resistance of the two photoresistors 10 connected in series is large, so the current flowing through the heating tube 18 is small, and the heat generated per unit time on the heating tube 18 is small, and the heat generated is much smaller than the heat dissipated per unit time by the multiple heat sinks 19, and the heat in the thermal expansion and contraction liquid will gradually dissipate outward, so that the pressure of the driving chamber 13 is reduced, and then under the action of the multiple first springs 17, the first plate 12 gradually slides downward, and the second spring 25 is in a power-off state. When the first plate 12 slides downward so that its lower surface fits the upper surface of the multiple second plates 20, the slide groove 22 is opposite to the card groove 23, and the first conductive rod 35 is just in contact with the second conductive rod 36, and then the electromagnetic push rod 30 is energized and extended, so that the two sealing plates 26 are separated from each other, and then the two card plates 24 can enter the two card grooves 23 respectively under the action of the two second springs 25, so that the whole device returns to the initial state, which is convenient for the next replacement of the two glass plates 9.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A residential construction management device based on BIM, comprising a support plate (1) fixed to the upper end of a base, a monitoring device (2) being installed on the upper end of the support plate (1), and a lens (3) being provided on the side wall of the monitoring device (2), characterized in that: The side wall of the support plate (1) is fixedly connected to a fixing frame (4) via a plurality of brackets; the fixing frame (4) is circular in shape; the side wall of the fixing frame (4) is sealed and fitted with the side wall of the monitoring device (2); a through groove (5) is formed on the side wall of the fixing frame (4); the lens (3) passes through the through groove (5); and a protective mechanism for protecting the lens (3) is provided on the fixing frame (4); The protection mechanism comprises a protection plate (7) which is sealingly rotatably connected to the inner wall of the fixed frame (4) via a rotating shaft (6); a side wall of the protection plate (7) close to the lens (3) is provided with an annular groove (8); two glass plates (9) are embedded in the inner wall of the annular groove (8); the angle between the two glass plates (9) is 180°; the lens (3) is directly opposite to one of the glass plates (9); and a rotation mechanism for driving the rotating shaft (6) to rotate half a circle is provided on the support plate (1); The rotating mechanism comprises a one-way bearing (15), a groove (11) is formed at the upper end of the support plate (1), a first plate (12) is sealingly and slidably connected to the inner wall of the groove (11), a toothed plate (14) is fixedly connected to the upper end of the first plate (12), one end of the rotating shaft (6) passes through the side wall of the support plate (1) and extends into the groove (11), the side wall of the rotating shaft (6) located in the groove (11) is fixedly connected to the inner ring side wall of the one-way bearing (15), the outer ring side wall of the one-way bearing (15) is fixedly connected to a gear (16) meshing with the toothed plate (14), and the lower end of the first plate (12) is elastically connected to the bottom of the groove (11) via a plurality of first springs (17); A sliding mechanism for driving the first plate (12) to slide is provided in the groove (11), the sliding mechanism comprising a heating tube (18) fixedly connected to the bottom of the groove (11) via a bracket, a driving chamber (13) is formed between the lower end of the first plate (12) and the inner wall of the groove (11), the heating tube (18) is located in the driving chamber (13), a thermal expansion and contraction liquid is provided in the driving chamber (13), a plurality of heat sinks (19) are fixedly connected to the inner wall of the driving chamber (13), and two photoresistors (10) are fixedly connected to the inner walls of the annular groove (8) facing the two glass plates (9), respectively, the two photoresistors (10), The heating tube (18) is connected in series with an external power source. A plurality of second plates (20) that are in contact with the lower surface of the first plate (12) are fixedly connected to the inner wall of the driving chamber (13), so that the initial position of the first plate (12) can be solidified. A plurality of third plates (21) that are in contact with the upper surface of the first plate (12) are fixedly connected above the inner wall of the groove (11). When the first plate (12) moves to a point where its upper surface is in contact with the lower surface of the third plates (21), under the action of the one-way bearing (15), the toothed plate (14) just drives the gear (16) to rotate half a circle, thereby replacing the positions of the two symmetrical glass plates (9).

2. A BIM-based residential construction management device according to claim 1, characterized in that: The first plate (12) is provided with a locking mechanism for locking its position, the locking mechanism comprising two slide grooves (22) respectively provided on the side walls of both sides of the first plate (12), the inner wall of the slide groove (22) is sealed and slidably connected with a clamping plate (24), the side wall of the clamping plate (24) is elastically connected to the inner wall of the slide groove (22) via a second spring (25), the inner wall of the groove (11) is provided with two clamping grooves (23) directly opposite to the two slide grooves (22), and the side wall of the clamping plate (24) is tightly fitted with the inner wall of the clamping groove (23).

3. A BIM-based residential construction management device according to claim 2, characterized in that: A pressure sensor (27) is embedded at the lower end of the first plate (12), and the pressure sensor (27), the second spring (25) and an external power source are connected in series.

4. A BIM-based residential construction management device according to claim 2, characterized in that: A sealing mechanism for sealing the two card slots (23) is provided in the two card slots (23), and the sealing mechanism comprises two sealing plates (26) respectively sealingly and slidably connected in the two card slots (23). A control slot (28) is provided below the side wall of the support plate (1). An electromagnetic push rod (30) is fixedly connected to the top of the control slot (28), and a control plate (31) is fixedly connected to the movable end of the electromagnetic push rod (30). Two U-shaped rods (29) are respectively slidably connected between the control slot (28) and the inner walls of the two card slots (23). One end of the U-shaped rod (29) located in the card slot (23) is fixedly connected to the side wall of the sealing plate (26) corresponding to the one end, and the lower end of the control plate (31) is rotatably connected to the side walls of the two U-shaped rods (29) located in the control slot (28) through two control rods (32).

5. A BIM-based residential construction management device according to claim 4, characterized in that: A power supply mechanism for switching power on and off for the electromagnetic push rod (30) is provided in the groove (11), the power supply mechanism comprising a fourth plate (33) fixedly connected to a side wall of the tooth plate (14), a telescopic bag (34) fixedly connected between the fourth plate (33) and one of the third plates (21), a first conductive rod (35) and a second conductive rod (36) fixedly connected to the top and bottom of the telescopic bag (34), respectively, and the electromagnetic push rod (30), the first conductive rod (35), the second conductive rod (36) and an external power source are connected in series.

6. A BIM-based residential construction management device according to claim 3, characterized in that: The support plate (1) is provided with a cleaning mechanism for cleaning the glass plate (9) located below, the cleaning mechanism comprising an electric slide rail (37) fixedly connected to the side wall of the support plate (1) via a bracket, a cleaning plate (38) being mounted on the electric slide rail (37), a cleaning cotton (39) being glued to the side wall of the cleaning plate (38), a water pump (40) being mounted on the upper end of the base, an output end of the water pump (40) being connected to the upper side wall of the cleaning plate (38) via a water outlet pipe (41), and the pressure sensor (27), the electric slide rail (37) and the water pump (40) being connected in series and connected to an external power supply via a power-off delay relay.

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