Induction-type foundation pit canopy system and control method therefor

Abstract

An induction-type foundation pit canopy system and a control method therefor. The induction-type foundation pit canopy system comprises a canopy frame (1) consisting of a plurality of upright columns (11) and cross beams (12). A plurality of canopy fabrics (2) are arranged in parallel on the canopy frame (1). Gathering devices (4) carrying proximity sensors (3) and used for gathering the canopy fabrics (2) are slidably arranged on the canopy fabrics (2). When adjacent canopy fabrics (2) are gathered by the gathering devices (4), openings used for supplying external materials to a foundation pit are formed. The system and the control method can automatically gather foundation pit canopy fabrics (2), and can automatically form openings for external materials to enter, thereby quickly and efficiently delivering the external materials.

Description

Induction type foundation pit canopy system and control method thereof

[0001] This application claims priority to the Chinese patent application No. 202411144282.2 filed on August 20, 2024 with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of building equipment control, in particular to an induction type foundation pit canopy system and a control method thereof. BACKGROUND

[0003] With the acceleration of urbanization, the construction of high-rise buildings is increasing, and the safety and construction efficiency of foundation pit engineering, as an important part of high-rise building construction, have attracted widespread attention. The foundation pit canopy, as a new type of construction protection facility, is widely used in deep foundation pit construction to protect the safety of construction personnel and equipment, and to prevent dust and noise during construction from affecting the surrounding environment.

[0004] The foundation pit canopy is usually covered above the foundation pit to form a closed or semi-closed space, which not only resists the influence of adverse weather on construction, but also effectively isolates construction noise and reduces interference to surrounding residents. However, the foundation pit canopy in the prior art has some deficiencies, mainly in the following aspects:

[0005] 1. In the prior art, after the tower crane delivers building materials to the top of the foundation pit canopy, the canopy needs to be opened first, and then the building materials are transferred from the top of the canopy to the inside of the foundation pit by manual or mechanical assistance. This process not only consumes time and effort, but also increases construction costs;

[0006] 2. Due to the closed nature of the foundation pit canopy, the tower crane needs to open the foundation pit canopy manually when delivering building materials, and due to the one-way laying of the canopy curtain on the foundation pit canopy, the flexibility is low. When the tower crane delivers external materials to the top of the canopy curtain, it often needs to open the canopy in a large area, increasing the safety risk during construction. SUMMARY

[0007] The present application provides an induction type foundation pit canopy system and a control method thereof to solve at least one technical problem in the prior art.

[0008] In a first aspect of the present application, an induction type foundation pit canopy system is provided, comprising a canopy frame composed of a plurality of vertical columns and horizontal beams, a plurality of canopy curtains arranged side by side on the canopy frame, a bunching device for bunching the canopy curtains and carrying a proximity sensor, and an opening formed by the bunching device when the canopy curtains are bunched for external materials to enter the foundation pit.

[0009] In some embodiments of the first aspect, the bunching device comprises wire winding devices symmetrically arranged at the two side edges of the awning curtain and sliding seats slidingly engaged with the two sides of the awning curtain, the wire winding devices and the sliding seats are fixedly connected, the wire winding devices are provided with the proximity sensors at the top, and the sliding seats are provided with accommodating grooves for accommodating the folded and bunched awning curtain at the bottom.

[0010] In some embodiments of the first aspect, the wire winding devices comprise housings, wire winding wheels and wire winding motors, the housings are fixedly arranged at the top of the sliding seats, the wire winding motors are fixedly arranged inside the housings, the wire winding motors are fixedly connected with the wire winding wheels at the transmission end, and the bunching device further comprises first traction ropes, the two ends of the first traction ropes are wound around the wire winding wheels of the two wire winding devices in the bunching device.

[0011] In some embodiments of the first aspect, traction devices are fixedly installed on the columns, the two sides of each sliding seat are connected to the two sides of the traction devices through second traction ropes, traction pulleys for winding the second traction ropes are arranged in the traction devices, and the traction pulleys are connected with drive motors.

[0012] In some embodiments of the first aspect, a plurality of anti-skid members are arranged at the joint between the sliding seat and the awning curtain, the anti-skid members are embedded on the side of the sliding seat that is attached to the bottom of the awning curtain, and the anti-skid members have the function of rolling in place on the sliding seat.

[0013] In some embodiments of the first aspect, one end of the awning curtain is connected with a curtain accommodating bin arranged on the cross beam, the other end of the awning curtain is connected with a curtain winding device, a curtain winding shaft is arranged in the curtain accommodating bin, the curtain winding device comprises a winding motor and a winding drum, the winding drum is connected with the winding motor at the transmission end, and the awning curtain is wound around the winding drum.

[0014] In some embodiments of the first aspect, the system further comprises an awning control system, the awning control system comprises sensing devices distributed on the awning frame and a control terminal, the control terminal is bidirectionally connected with the sensing devices, the wire winding motor, the drive motor and the winding motor.

[0015] In some embodiments of the first aspect, the control terminal is provided with a sensing signal receiving module, a control parameter calculation module and a device control module; the sensing signal receiving module is configured to receive object sensing data of the sensing devices and sensing signals of the proximity sensors.

[0016] The control parameter calculation module is configured to: calculate control parameters for controlling the winding motor, the drive motor and the take-up motor respectively based on the object sensing data and the sensing signal, so as to control the winding device, the traction device and the curtain take-up device to work;

[0017] The equipment control module is configured to generate control commands based on the control parameters and send them to the winding motor, the drive motor, and the take-up motor.

[0018] A second aspect of this application provides a control method for an inductive foundation pit canopy system, applied to the inductive foundation pit canopy system described in any embodiment of the first aspect above, comprising the following steps:

[0019] S1. Sensors are distributed and installed on the canopy frame to detect objects near the top of the canopy in real time.

[0020] S2. When the external transport equipment transports external materials to the top of the foundation pit canopy, the sensing equipment obtains its spatial position; at the same time, the proximity sensor sends a start signal to the corresponding winding motor to determine one or more of the winding devices that need to be activated.

[0021] S3. Control the drive motor corresponding to the gathering device to be started, move the gathering device to a position close to the external material, and simultaneously start the winding motor and the take-up motor, so that the winding devices on both sides of the sky curtain move closer to the central axis of the sky curtain, while the take-up motor releases the sky curtain of a set length to prevent the sky curtain from being pulled too tight.

[0022] S4. When adjacent skylights are all gathered by the gathering device, an opening will be created between the adjacent skylights to allow external materials to enter the pit, so that external materials can be transported into the pit.

[0023] S5. After completing the transportation of external materials, pause the operation of the winding motor, start the drive motor at the same time, pull the two winding devices that are in contact apart, and start the winding motor at the same time to tighten the canopy and restore it to the state of covering the foundation pit.

[0024] A third aspect of this application provides a control method for an inductive foundation pit canopy system, applied to the inductive foundation pit canopy system described in any embodiment of the first aspect, comprising the following steps:

[0025] S1. Sensors are distributed and installed on the canopy frame to detect objects near the top of the canopy in real time.

[0026] S2, when the external conveying device conveys the external material to the top of the foundation pit awning, the spatial position of the external material is obtained by the induction device; at the same time, the proximity sensor sends a start signal to the corresponding winding motor to determine which one or more of the bunching devices need to be started;

[0027] S3, the drive motor corresponding to the bunching device to be started is controlled to move the bunching device to a position close to the external material, the winding motor is started to move one or more winding devices that need to be moved to bunch the awning curtain, and the winding motor is started to release a set length of the awning curtain to prevent the awning curtain from being pulled too tight during the bunching process;

[0028] S4, the awning curtain forms one or more openings corresponding to the position of the external material, and the external material is conveyed into the foundation pit through the openings;

[0029] S5, after the external material conveying is completed, the winding motor is paused, the drive motor is started to reset the winding device by tightening the second traction rope, so that the awning curtain is unfolded, and the winding motor is started to tighten the awning curtain, so that the awning curtain returns to the state of covering the upper part of the foundation pit.

[0030] Compared with the prior art, the present application has the following beneficial effects:

[0031] 1. The bunching device can bunch one part of each awning curtain that is originally unfolded on the foundation pit, so that an opening is formed between two adjacent awning curtains, and the external material can be conveyed from top to bottom into the foundation pit. Since the bunching device is provided with a proximity sensor, the opening can be automatically opened for the external material to enter without manual operation, and the external material conveying work can be quickly and efficiently completed, solving the problem that in the prior art, after the tower crane conveys the building materials to the top of the foundation pit awning, the awning needs to be opened first, and then the building materials are transferred from the top of the awning to the inside of the foundation pit by manual or mechanical assistance, which not only consumes time and effort, but also increases the construction cost;

[0032] 2. The present application gives the awning curtain flexible induction function and convenient and fast awning curtain opening mode, avoids the extremely inconvenient work process of opening the awning curtain in a large area when receiving the external material conveyed by the tower crane, and solves the problem that due to the closure of the foundation pit awning, the tower crane needs to open the foundation pit awning manually when conveying building materials, and due to the one-way laying of the awning curtain on the foundation pit awning, the flexibility is low, and when the tower crane conveys the external material to the top of the awning curtain, it often needs to open the awning in a large area, increasing the safety risk in the construction process. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural schematic view of an embodiment of the induction type foundation pit awning system provided by the present application in a first perspective view;

[0034] Fig. 2 is a structural schematic diagram of an embodiment of the inductive foundation pit canopy system provided by the present application from a second perspective;

[0035] Fig. 3 is an enlarged view of part A in Fig. 1;

[0036] Fig. 4 is a structural schematic diagram of the bunching device in the embodiment of the present application;

[0037] Fig. 5 is a sectional view of the bunching device in the embodiment of the present application;

[0038] Fig. 6 is a sectional view of the traction device in the embodiment of the present application;

[0039] Fig. 7 is a system framework diagram of the canopy control system in the embodiment of the present application;

[0040] Fig. 8 is a flowchart of an embodiment of the control method of the inductive foundation pit canopy system provided by the present application;

[0041] Fig. 9 is a flowchart of another embodiment of the control method of the inductive foundation pit canopy system provided by the present application. 1, canopy frame; 11, upright column; 12, cross beam; 2, canopy curtain; 3, proximity sensor; 4, bunching device; 41, winding device; 411, outer shell; 412, winding wheel; 413, winding motor; 42, sliding seat; 421, accommodating groove; 4211, first groove wall; 4212, second groove wall; 422, joint part; 4221, connecting part; 4222, extension part; 4223, gap; 43, first traction rope; 44, anti-skid member; 5, traction device; 51, traction pulley; 52, driving motor; 6, second traction rope; 71, curtain storage bin; 72, curtain winding shaft; 8, curtain winding device; 81, winding motor; 82, winding drum; 9, canopy control system; 91, inductive device; 92, control terminal; 921, processor; 922, memory; 923, inductive signal receiving module; 924, control parameter calculation module; 925, device control module. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0043] Reference to an "embodiment" in this application means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that that the embodiments described in this application are merely possible embodiments of the application and that other embodiments of the application can be utilized and that the generic or specific terms in the description are used only for the purpose of describing particular embodiments and not intended to limit the application or to imply that the application requires more claims than are recited.

[0044] In the description of the application, it is necessary to understand that the terms "center", "transverse", "vertical", "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. The terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0045] In the description of the application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. "Multiple" in this application means two or more.

[0046] The first aspect of the application provides an inductive foundation pit sky screen system. In some embodiments, as shown in Figures 1-7, the inductive foundation pit sky screen system comprises a sky screen frame 1 and a plurality of sky screen curtains 2 arranged side by side on the sky screen frame 1, the sky screen frame 1 comprising a plurality of columns 11 and a plurality of beams 12 supported on the columns 11. The beams 12 are arranged opposite to each other in the transverse direction, and one or more sky screen curtains 2 are arranged between every two opposite beams 12, and all the sky screen curtains 2 close the top space of the foundation pit in the unfolded state. For example, in the embodiment shown in Figures 1 and 2, each beam 12 is supported by a plurality of columns 11 arranged in a straight line, and a sky screen curtain 2 is arranged between every two adjacent columns 11 and connected to the opposite beam 12, and the plurality of sky screen curtains 2 shield the space below the two opposite beams 12.

[0047] For the convenience of opening the sky curtain 2 to send external materials into the foundation pit, a bunching device 4 for bunching the sky curtain 2 and carrying a proximity sensor 3 is arranged on each of the sky curtains 2 in sliding mode, and the sky curtain 2 is bunched by the bunching device 4 to form an opening for external materials to enter the foundation pit.

[0048] In some embodiments, the bunching device 4 includes wire winding devices 41 symmetrically arranged on both side edges of the sky curtain 2 and sliding seats 42 slidingly engaged on both sides of the sky curtain 2, the wire winding devices 41 and the sliding seats 42 are fixedly connected, the wire winding devices 41 are provided with the proximity sensor 3 on the top, the sliding seats 42 are provided with containing grooves 421 for accommodating the folded and bunched sky curtain 2 on the lower part, and a first traction rope 43 is connected between the two wire winding devices 41, the first traction rope 43 is wound by at least one of the two wire winding devices 41 to make the two wire winding devices 41 move closer to each other.

[0049] In the above-mentioned embodiments, the two wire winding devices 41 can move closer to each other by winding the first traction rope 43, and thus the sliding seats 42 slidingly engaged on both sides of the sky curtain 2 also move closer to each other, so as to bunch the sky curtain 2 from the edges and accommodate it in the containing grooves 421 of the sliding seats 42. With the sliding engagement of the sliding seats 42 and the edges of the sky curtain 2, the bunching device 4 can slide on the sky curtain 2 along the edges of the sky curtain 2 to move to the required position and further bunch the sky curtain 2.

[0050] In some embodiments, the wire winding device 41 includes a shell 411, a wire winding wheel 412 and a wire winding motor 413, the shell 411 is fixedly arranged on the top of the sliding seat 42, the wire winding motor 413 is fixedly arranged inside (for example, at the center position) of the shell 411, the wire winding motor 413 is fixedly connected with the wire winding wheel 412 on the transmission end, and both ends of the first traction rope 43 are wound on the wire winding wheels 412 of the two wire winding devices 41 in the bunching device 4.

[0051] The corresponding winding devices 41 are connected to each other by a first traction rope 43. When the canopy 2 is being gathered, the winding motors 413 in one or both winding devices 41 are activated, causing the winding devices 41 on both sides to gradually move closer to each other, thereby gathering the canopy 2. When the winding motor 413 of the one-sided winding device 41 is activated, the canopy 2 is gathered at one edge of the corresponding canopy 2, while the other edge remains stationary. At this time, the winding motor 413 of the winding device 41 on the side of another canopy 2 adjacent to the gathering side of the first canopy 2 can also be activated simultaneously, gathering the adjacent canopy 2 at the same time, creating an opening between the two canopy 2 for materials to be fed in. When the winding motors 413 of the winding devices 41 on both sides of the same canopy 2 start simultaneously, the two winding devices 41 drive the two sliding seats 42 to move closer to each other at the same time. Then, the two sides of the canopy 2 are simultaneously gathered, and two openings are opened from the two sides to allow materials to be fed in.

[0052] In some embodiments, a traction device 5 is fixedly installed on the column 11, and each side of the sliding seat 42 is connected to the traction device 5 on both sides by a second traction rope 6; the traction device 5 includes a traction pulley 51 for winding the second traction rope 6, and the traction pulley 51 (e.g., the center position of the traction pulley 51) is connected to a drive motor 52.

[0053] The sliding seat 42 is connected to the traction device 5 via the second traction rope 6. The traction device 5 pulls the sliding seat 42, thereby allowing the retraction device 4 to move the canopy 2 to the desired position and retract it. Furthermore, it is understood that in the above embodiment, to facilitate the traction device 5 in pulling the sliding seat 42, the traction device 5 and the side edge of the canopy 2 are aligned on the same straight line. This allows the second traction rope 6 to pull the sliding seat 42 along the edge of the canopy 2. In this case, the column 11 used to set the traction device 5 should be located at the joint of two adjacent canopy panels 2.

[0054] In some embodiments, a plurality of anti-slip elements 44 are provided at the junction of the sliding seat 42 and the canopy 2. The anti-slip elements 44 are embedded in one side of the sliding seat 42 that is in contact with the bottom of the canopy 2, and the anti-slip elements 44 have the function of rolling in place on the sliding seat 42.

[0055] By installing anti-slip parts 44 on the sliding base 42, the sliding base 42 can be placed stably on the canopy 2. Since the anti-slip parts 44 can roll on the sliding base 42, the sliding base 42 has a certain sliding function and can slide along the edge of the canopy 2 without falling off.

[0056] In the above embodiment, as shown in FIG. 5, the top of the sliding seat 42 is formed with an engaging portion 422 for slidingly engaging the lateral edge of the curtain 2, the engaging portion 422 including a connecting portion 4221 connected with the outer shell 411 of the winding device 41, and an extending portion 4222 extending from the connecting portion 4221 to the bottom surface of the curtain 2, a gap 4223 being formed between the bottom surface of the outer shell 411 and the extending portion 4222 for the lateral edge of the curtain 2 to be inserted thereinto. A non-slip member 44 is embedded in the extending portion 4222, the top of the non-slip member 44 being exposed to the gap 4223 and being rotatable in the extending portion 4222. The non-slip member 44 can be a ball-like component, which presses the curtain 2 against the bottom surface of the outer shell 411 to prevent the lateral edge of the curtain 2 from being disengaged from the engaging portion 422, but does not hinder the sliding of the sliding seat 42 relative to the curtain 2.

[0057] Based on the above embodiment, the first groove wall 4211 of the accommodating groove 421 extends vertically away from the winding device 41, and the second groove wall 4212 of the accommodating groove 421 extends laterally from the bottom end of the first groove wall 4211 to below the curtain 2. When the sliding seat 42 moves to the opposite side along with the winding device 41, the portion of the curtain 2 being bunched is accommodated in the accommodating groove 421; when the sliding seat 42 moves to the opposite direction along with the winding device 41 to reset, the portion of the curtain 2 accommodated in the accommodating groove 421 gradually unfolds during the resetting of the sliding seat 42, until the curtain 2 is completely unfolded after the sliding seat 42 is completely reset.

[0058] In some embodiments, one end of the curtain 2 is connected in a curtain accommodating bin 71 arranged on the cross beam 12, and the other end of the curtain 2 is connected with a curtain winding device 8, a curtain winding shaft 72 is arranged in the curtain accommodating bin 71, the curtain winding device 8 includes a winding motor 81 and a winding drum 82, the winding motor 81 is connected with the winding drum 82 at the driving end, and the curtain 2 is wound on the winding drum 82.

[0059] The curtain 2 is wound by the curtain winding device 8, so that the curtain 2 can be in a tensioned state, thereby improving the stability.

[0060] In the present embodiment, while the curtain 2 is being bunched, the winding motor 82 in the curtain winding device 8 needs to be rotated at the driving end to a certain distance in the direction of loosening the rotation of the curtain 2, so as to loosen the curtain 2, and a part of the curtain 2 is reserved for the bunching device 4 to bunch the curtain 2, so as to prevent the curtain 2 originally in a tensioned state from being damaged by the bunching force of the bunching device 4 during the bunching of the curtain 2 by the bunching device 4.

[0061] Further, reset coil springs (not shown in the figure) are arranged at the connection between the two ends of the curtain winding shaft 72 and the inner wall of the curtain storage bin 71 to give the curtain winding shaft 72 the ability to rewind. The reset coil springs can cooperate with the curtain winding device 8 to provide tension to the opposite side of the curtain 2. It can be understood that when the curtain 4 is retracted, the winding device 41 of the retraction device 4 needs to overcome the tension of the reset coil spring to retract the curtain.

[0062] In some embodiments, the inductive foundation pit curtain system further comprises a curtain control system 9, which comprises inductive devices 91 distributed on the curtain frame 1 and a control terminal 92, which is respectively bidirectionally connected to the inductive devices 91, the winding motor 413, the driving motor 52 and the winding motor 81.

[0063] The inductive devices 91 comprise a plurality of infrared opposite sensors symmetrically distributed on every two opposite cross beams 12, and a plurality of symmetrically arranged infrared opposite sensors form a coverage sensing area on the curtain 2. When the tower crane transports materials close to the curtain 2, it can sense the proximity and obtain the approximate position.

[0064] The control terminal 92 is loaded with an inductive signal receiving module 923, a control parameter calculation module 924 and a device control module 925. The control terminal 92 can be an industrial computer (IPC), a programmable logic controller (PLC), a single-chip microcomputer (MCU) system, etc.

[0065] Specifically, the control terminal 92 comprises at least one processor 921 and a memory 922, wherein the processor 921 is configured to execute the following program modules stored in the memory 922:

[0066] The inductive signal receiving module 923 is configured to receive object sensing data of the inductive devices 91 and sensing signals of the proximity sensors 3. Specifically, the proximity sensors 3 arranged on the winding device 41 are used to sense the approach of materials. When the materials approach one or more winding devices 41, the proximity sensors 3 in the area send a start signal to the corresponding winding motor 413 to start the winding device 41 to move, thereby opening an opening between the curtains 2 to facilitate the transportation of materials.

[0067] The control parameter calculation module 924 is configured to calculate control parameters for controlling the winding motor 413, the driving motor 52 and the winding motor 81 according to the object sensing data and the sensing signals, so as to control the winding device 41, the traction device 5 and the curtain winding device 8 to work;

[0068] The equipment control module 925 is configured to generate control commands based on control parameters and send them to the winding motor 413, drive motor 52, and take-up motor 81; for example, it generates control commands based on the calculated number of rotations, including the direction of rotation and the number of rotations of the motor.

[0069] The working principle of each motor is as follows:

[0070] Winding motor 413: Winding motor 413 is used to wind the first traction rope 43, thereby bringing a pair of symmetrically arranged winding devices 41 closer to each other;

[0071] Drive motor 52: Drive motor 52 is used to pull sliding seat 42. The symmetrically arranged drive motors 52 pull sliding seat 42 in two directions, making it move back and forth on the long side of the canopy 2, controlling the retraction device 4 to move to the position corresponding to the tower crane material; at the same time, during the process of the winding device 41 moving in the wide side direction of the canopy 2 to retract the canopy 2, the second traction rope 6 used to pull the winding device 41 changes from being parallel to the long edge of the canopy 2 to being at a certain angle to the original long side position of the canopy 2, which increases the length. Therefore, it is necessary to release part of the second traction rope 6 to prevent it from restricting the movement of the winding device 41.

[0072] Take-up motor 81: The function of take-up motor 81 is to adjust the tightness of the tarpaulin 2. Therefore, it is only necessary to set the range F of the distance of loosening the tarpaulin 2, and the number of rotations of take-up motor 81 can be calculated according to the circumference of take-up drum 82.

[0073] The control parameter calculation module 924 is configured to perform the following calculations on the control parameters of each motor:

[0074] Based on the location data of the materials, the total distance D that the gathering device 4 needs to move on the canopy 2 can be obtained;

[0075] The moving distance F when the winding devices 41 move close to each other, and the circumference C of the winding reel 412. reel The circumference C of the traction pulley 51 pulley ;

[0076] The winding motor 413 winds up and unwinds the first traction rope 43 via the winding reel 412, causing the winding device 41 to move. The number of rotations N required by the winding motor 413 is calculated. reel :

[0077] Drive motor 52 pulls retracting device 4 via traction pulley 51, causing it to move along the canopy 2. Calculate the number of rotations N of drive motor 52. pulley :

[0078] There are two cases in the process of the retraction of the sky screen 2 by the retraction device 4:

[0079] ① Two winding devices 41 on the same piece of sky screen 2, one of which remains stationary, and the other winding device 41 starts the winding motor 413 to move close to the stationary winding device 41, at the same time, the winding device 41 on the other piece of sky screen 2 adjacent to the moving winding device 41 moves in mirror image relative to the splicing of the two pieces of sky screen 2, at this time, an opening can be opened between the two adjacent pieces of sky screen 2;

[0080] ② Two winding devices 41 on the same piece of sky screen 2 move close to each other at the same time, the edges of the sky screen 2 on both sides are retracted at the same time, at this time, openings are generated between the sky screen 2 and the sky screens 2 adjacent to it on the left and right. In this case, the sky screens 2 on both sides adjacent to the opened sky screen 2 can also be retracted in the manner of case ① above, thereby expanding the opening.

[0081] The second aspect of the application provides a control method for an inductive foundation pit sky screen system. As shown in FIG. 8, the control method for the inductive foundation pit sky screen system includes the following steps:

[0082] S1, an induction device 91 is arranged on the sky screen frame 2 for real-time detection of objects close to the top of the foundation pit sky screen;

[0083] S2, when the external conveying device transports external materials to the top of the foundation pit sky screen, the spatial position of the external materials is obtained by the induction device 91; at the same time, the proximity sensor 3 sends a start signal to the corresponding winding motor 413 to determine which one or more retraction devices 4 need to be started;

[0084] S3, control the drive motor 52 at the corresponding position of the retraction device 4 to be started to move the retraction device 4 to a position close to the external materials, and at the same time, start the winding motor 413 and the winding motor 81 to move the winding devices 41 on both sides of the sky screen 2 to the central axis of the sky screen 2 to open two openings on both sides of a piece of sky screen 2, and at the same time, the winding motor 81 releases a set length of the sky screen 2 to prevent the sky screen 2 from being pulled too tight; wherein the set length of the sky screen 2 released is a preset F;

[0085] S4, when the adjacent sky screens 2 are retracted by the retraction device 4, an opening is generated between the adjacent sky screens 2 for the external materials to enter the foundation pit, so as to transport the external materials to the inside of the foundation pit;

[0086] S5. After completing the external material transportation, stop the operation of the winding motor 413 and start the drive motor 52 to separate the two winding devices 4 that are in contact. At the same time, start the winding motor 81 to tighten the canopy 2 and restore it to the state of covering the foundation pit.

[0087] A third aspect of this application provides a control method for an inductive foundation pit canopy system. As shown in Figure 8, the control method for the inductive foundation pit canopy system includes the following steps:

[0088] S1. Sensors 91 are distributed on the canopy frame 1 to detect objects near the top of the canopy in real time; specifically, the sensors 91 are distributed on the crossbeams 12.

[0089] S2. When the external transport equipment transports external materials to the top of the foundation pit canopy, the sensing device 91 obtains its spatial position; at the same time, the proximity sensor 3 sends a start signal to the corresponding winding motor 413 to determine one or more of the winding devices 4 that need to be started.

[0090] S3. Control the drive motor 52 corresponding to the coiling device 4 to be activated, move the coiling device 4 to a position close to the external material, start the winding motor 413 to move one or more winding devices 41 that need to be moved to coil the canopy 2, and at the same time start the winding motor 81 to release the canopy 2 of a set length to prevent the canopy 2 from being pulled too tight during the coiling process; wherein, the set length of the canopy 2 released is a preset F;

[0091] S4 and the canopy 2 form one or more openings corresponding to the location of external materials, and the external materials are transported into the pit through the openings.

[0092] S5. After completing the external material transportation, pause the winding motor 413, start the drive motor 52 to reset the winding device 41 by tightening the second traction rope 6, so that the canopy 2 is unfolded. At the same time, start the winding motor 81 to tighten the canopy 2 and restore it to the state of covering the upper part of the foundation pit.

[0093] Step S3, which involves creating an opening in the celestial canopy 2, includes the following two scenarios;

[0094] In some embodiments, step S3 is specifically: controlling the drive motor 52 corresponding to the bunching device 4 to be started, moving the bunching device 4 to the position close to the external material, and simultaneously starting the winding motor 413 of the winding device 41 on both sides of the corresponding piece of the curtain 2, so as to move the winding device 41 on both sides of the curtain 2 to the central axis of the curtain 2, open two openings on both sides of the curtain 2, and simultaneously start the winding motor 81 to release a set length of the curtain 2 to prevent the curtain 2 from being too tight during the bunching process. This case is suitable for simultaneously sending multiple materials into the foundation pit through one piece of the curtain 2, thereby improving the material transportation efficiency.

[0095] In other embodiments, step S3 is specifically: controlling the drive motor 52 corresponding to the bunching device 4 to be started, moving the bunching device 4 to the position close to the external material, and simultaneously starting the winding motor 413 of the winding device 41 on both sides of the corresponding piece of the curtain 2, so as to move the winding device 41 on both sides of the curtain 2 to the central axis of the curtain 2, open two openings on both sides of the curtain 2, and simultaneously start the winding motor 81 to release a set length of the curtain 2 to prevent the curtain 2 from being too tight during the bunching process. This case is suitable for simultaneously sending multiple materials into the foundation pit through one piece of the curtain 2, thereby improving the material transportation efficiency.

[0096] In the description of the present application, it can be understood that the drive motor 52 corresponding to the bunching device 4 to be started refers to the drive motor 52 of the traction device 5 connected with the sliding seat 42 below the winding device 41 to be started in the bunching device 4. The second traction rope 6 is controlled to be released or wound by the drive motor 52, so as to move the bunching device 4 to the corresponding position below the external material, thereby facilitating the external material to be directly sent into the foundation pit after the curtain 2 is opened. Generally, the sliding seats 42 on both sides of the bunching device 4 are synchronously moved during the movement of the bunching device 4 on the curtain 2, so as to make the bunching device 4 always parallel or close to parallel to the width direction of the curtain 2, thereby avoiding the curtain 2 being pulled.

[0097] In some embodiments, step S2 further includes the step of calculating the control parameters of each motor:

[0098] The total distance D that the bunching device 4 needs to move on the curtain 2 and the moving distance F of the winding device 41 are obtained from the position data of the material;

[0099] The number of turns N that the winding motor 413 needs to rotate is calculated reel :

[0100] Where C reelthe circumference of the traction pulley 51.

[0101] the number of rotations N of the driving motor 52 is calculated pulley :

[0102] where C pulley is the circumference of the traction pulley 51.

[0103] The induction type foundation pit canopy system of the present application aims to solve the efficiency and safety problems of the cooperation between the foundation pit canopy and the tower crane in high-rise building construction. The system includes a canopy frame 1, a canopy curtain 2, a collection device 4, a curtain storage bin 71, a curtain winding device 8, and a canopy control system 9. Through intelligent design, the automatic opening and closing of the foundation pit canopy is realized, and the construction process is optimized.

[0104] In traditional construction, after the tower crane delivers building materials to the top of the foundation pit canopy, manual or mechanical assistance is needed to open the canopy, and then the building materials are transferred to the inside of the foundation pit. This process not only consumes time and effort, but also has safety hazards. The present application sets a collection device 4 carrying a proximity sensor 3 on the canopy curtain 2, which realizes the automatic control of the canopy curtain 2. When the tower crane carrying building materials approaches the top of the foundation pit canopy, the sensing device 91 detects and obtains the spatial position information of the building materials in real time, and the control system 9 calculates the control parameters according to these information, automatically adjusts the working of the winding motor 413, the driving motor 52 and the winding motor 81, so that the canopy curtain 2 forms an opening at the specified position, allowing the building materials to smoothly enter the foundation pit.

[0105] The collection device 4 includes a winding device 41, a sliding seat 42 and an anti-skid piece 44, which realizes the temporary collection of the canopy curtain 2. The winding device 41 includes a housing 411, a winding wheel 412 and a winding motor 413. The housing 411 is fixed on the sliding seat 42, and the winding motor 413 is connected to the winding wheel 412 through a transmission end to realize the winding and unwinding of the first traction rope 43. The sliding seat 42 is provided with a second traction rope 6 on both sides, which is connected to the traction device 5 fixed on the stand column 11. The traction pulley 51 and the driving motor 52 inside the traction device 5 work together to control the movement of the sliding seat 42.

[0106] The canopy control system 9 is the core of the whole system, including an induction signal receiving module 923, a control parameter calculation module 924 and a device control module 925. The induction signal receiving module 923 receives the object sensing data of the sensing device 91 and the induction signal of the proximity sensor 3, the control parameter calculation module 924 calculates the parameters for controlling the winding motor 413, the driving motor 52 and the winding motor 81 according to these data, and the device control module 925 generates control instructions according to these parameters to realize accurate control of the whole system.

[0107] The control method of the application comprises steps of inductive detection, spatial positioning, automatic opening and closing, material transportation, and recovery state, and forms a complete work flow. Through the flow, the system can quickly respond to the operation demand of the tower crane, automatically adjust the awning curtain, form an opening, complete the transportation of building materials, and then quickly recover the covering state of the awning, to ensure the continuity and safety of the construction.

[0108] It should be noted that: the various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0109] The above embodiments are only used to illustrate the technical solutions of the present application but not limit it; although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones; without departing from the spirit of the technical solutions of the present application, they should be covered in the technical solution range of the present application.

Claims

1. An inductive type foundation pit canopy system, comprising a canopy frame composed of a plurality of upright columns and beams, characterized in that: The curtain frame is provided with a plurality of curtain screens arranged side by side, and a folding device for folding the curtain screens and provided with a proximity sensor is arranged on the curtain screens to form an opening for external materials to enter the foundation pit when the curtain screens are folded by the folding device.

2. The inductive excavation canopy system of claim 1, wherein: The folding device comprises wire winding devices symmetrically arranged on both side edges of the curtain screens and sliding seats slidingly engaged with both sides of the curtain screens, the wire winding devices and the sliding seats are fixedly connected, the wire winding devices are provided with the proximity sensors on the top, and the sliding seats are provided with accommodating grooves for accommodating the folded curtain screens on the lower part.

3. The inductive excavation canopy system of claim 2, wherein: The wire winding device comprises a housing, a wire winding wheel and a wire winding motor, the housing is fixedly arranged on the top of the sliding seat, the wire winding motor is fixedly arranged in the housing, the wire winding wheel is fixedly connected to the transmission end of the wire winding motor, and the folding device further comprises a first traction rope, both ends of the first traction rope are wound around the wire winding wheels of two wire winding devices in the folding device.

4. The inductive foundation pit canopy system according to claim 3, wherein: Traction devices are fixedly installed on the columns, and the sliding seats on both sides are connected to the traction devices on both sides through second traction ropes, traction pulleys for winding the second traction ropes are arranged in the traction devices, and the traction pulleys are connected with drive motors.

5. The inductive foundation pit canopy system of claim 2, wherein: A plurality of anti-skid members are arranged at the joint of the sliding seat and the curtain screen, the anti-skid members are embedded on one side of the sliding seat adhering to the bottom of the curtain screen, and the anti-skid members have the function of rolling in place on the sliding seat.

6. The inductive foundation pit canopy system of claim 4, wherein: One end of the curtain screen is connected with a curtain storage bin arranged on the cross beam, the other end of the curtain screen is connected with a curtain winding device, a curtain winding shaft is arranged in the curtain storage bin, the curtain winding device comprises a winding motor and a winding drum, the winding drum is connected to the transmission end of the winding motor, and the winding drum is wound with the curtain screen.

7. The inductive foundation pit canopy system of claim 6, wherein: A curtain control system is further included, the curtain control system comprises sensing devices distributed on the curtain frame and a control terminal, the control terminal is bidirectionally connected with the sensing devices, the wire winding motor, the drive motor and the winding motor.

8. The inductive foundation pit canopy system according to claim 7, wherein: The control terminal is provided with a sensing signal receiving module, a control parameter calculation module and a device control module; the sensing signal receiving module is configured to receive object sensing data of the sensing devices and sensing signals of the proximity sensors; The control parameter calculation module is configured to calculate control parameters for controlling the wire winding device, the traction device and the curtain winding device according to the object sensing data and the sensing signals; The device control module is configured to generate control instructions according to the control parameters and send the control instructions to the wire winding motor, the drive motor and the winding motor.

9. A method for controlling an inductive foundation pit canopy system, applied to the inductive foundation pit canopy system of any one of claims 1-8, characterized in that, The method comprises the following steps: S1, arranging sensing devices on the curtain frame to detect objects close to the top of the curtain of the foundation pit in real time; S2, when the external transport device transports the external material to the top of the foundation awning, the spatial position of the external material is obtained by the sensing device; at the same time, the proximity sensor sends a start signal to the corresponding winding motor to determine which one or more of the bunching devices need to be started; S3, control the drive motor corresponding to the bunching device to be started, move the bunching device to the position close to the external material, start the winding motor and the winding motor at the same time, and move the winding device on both sides of the awning curtain to the central axis position of the awning curtain, and at the same time, the winding motor releases a set length of awning curtain to prevent the awning curtain from being pulled too tight; S4, when the adjacent awning curtains are bunched by the bunching device, an opening between the adjacent awning curtains will be formed for the external material to enter the foundation pit, so as to transport the external material to the inside of the foundation pit; S5, after completing the transportation of the external material, suspend the operation of the winding motor, start the drive motor to separate the two winding devices in contact, and start the winding motor to tighten the awning curtain to restore the state of covering the foundation pit.

10. A method for controlling an inductive foundation pit canopy system, applied to the inductive foundation pit canopy system of any one of claims 1-8, characterized in that, The method comprises the following steps: S1, distribute the sensing device on the awning frame to detect the object close to the top of the foundation awning in real time; S2, when the external transport device transports the external material to the top of the foundation awning, the spatial position of the external material is obtained by the sensing device; at the same time, the proximity sensor sends a start signal to the corresponding winding motor to determine which one or more of the bunching devices need to be started; S3, control the drive motor corresponding to the bunching device to be started, move the bunching device to the position close to the external material, start the winding motor to move one or more winding devices that need to be moved to bunch the awning curtain, and at the same time, start the winding motor to release a set length of awning curtain to prevent the awning curtain from being pulled too tight during the bunching process; S4, the position of the awning curtain corresponding to the external material forms one or more openings, and the external material is transported to the inside of the foundation pit through the openings; S5, after completing the transportation of the external material, suspend the operation of the winding motor, start the drive motor to reset the winding device by tightening the second traction rope, so that the awning curtain is unfolded, and at the same time, start the winding motor to tighten the awning curtain to restore the state of covering the upper part of the foundation pit.

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