Method for using a modular construction opening protection system

Abstract

The present invention discloses a method for using a modular construction hole opening protection system, which adopts a hole opening protection device, a plurality of sensors, a data acquisition and transmitting device and a control system. Each load-bearing combination rod includes a horizontally arranged connector and two load-bearing components, and the two load-bearing components are movably connected to the two ends of the connector. Each load-bearing component includes a load-bearing rod, an upper limit member and a lower limit member. The length of the corresponding load-bearing combination rod can be adjusted by rotating the connector. A sensor is respectively arranged between the upper limit horizontal rod of the load-bearing combination rod located at the four corners of the hole opening and the floor slab. The sensors are respectively connected to the data acquisition and transmitting device. The data acquisition and transmitting device can send the information collected by the sensor to the control system to monitor the displacement of the hole opening protection device, thereby effectively avoiding the risk of construction personnel being injured and falling due to the displacement of the hole opening protection device.

Description

Technical Field

[0001] The present invention belongs to the field of construction site opening safety management and control, and in particular relates to a method for using a modular construction opening protection system. Background Art

[0002] There are a large number of holes reserved for construction needs and installation of equipment and pipelines on construction sites. These holes are often the main cause of casualties from falls from heights. To ensure safety during construction, these holes often need to be temporarily sealed. The sealing methods vary depending on the size of the hole:

[0003] Large openings are often closed with steel pipes, wooden planks and wooden boards, and then protective railings are installed around them. This type of opening has a higher level of protection and safety.

[0004] Small and medium-sized openings are often covered with steel plates or wooden boards. Due to the loose covering, the cover plates often shift, causing injuries to construction workers when they pass by. In mild cases, they may be bumped, and in severe cases, they may fall and get injured, or even suffer more serious consequences. In addition, the patent (ZL202020040783.7) invented a cover plate that can adapt to different opening sizes. The cover plate includes a cover plate body and a positioning assembly. The cover plate body is used to block the opening, and the positioning assembly is arranged on one side of the cover plate body. Among them, the positioning assembly includes a moving part and an elastic part. The moving part is arranged on the cover plate body and can slide relative to the cover plate body; one end of the moving part is fixed relative to the cover plate body, and the other end abuts against one end of the moving part, and the other end of the moving part abuts against the inner wall of the opening by compressing the elastic part. The size of the opening is different, and the degree of compression of the elastic part is different. Due to the compression of the elastic part, the moving part abuts against the inner wall of the opening, so that it can be suitable for openings of different sizes.

[0005] Patent (202020914892.7) discloses a pre-clamped hole protection device, comprising a hole cover plate, an adjustment slot being provided on the hole cover plate, two threaded rods being inserted into the adjustment slot, nuts being provided at the upper ends of the two threaded rods, and a hanging plate parallel to the hole cover plate being provided at the lower end of the threaded rod. By moving the threaded rod in the adjustment slot, the hanging plate contacts the lower surface of the hole while the threaded rod contacts the side wall of the hole, thereby achieving coverage of the hole by the hole cover plate.

[0006] The above-mentioned cover has the following problems: first, the cover adopts an integrated design, which is large in size and weight, making it difficult to carry and move; second, the information of the cover being moved cannot be obtained in real time, and the safety hazards caused cannot be eliminated immediately; third, the cover has a single structure and cannot adapt well to changes in the size of the opening and the load. Summary of the Invention

[0007] The present invention aims to invent a method for using a modular construction opening protection system, which has a self-sensing displacement function and can identify whether the opening protection device has been moved. In addition, it forms an opening protection device that adapts to different opening sizes and loads through the combination of components.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A method for using a modular construction hole opening protection system, the modular construction hole opening protection system includes a hole opening protection device, a plurality of sensors, a data acquisition and transmission device and a control system, the hole opening protection device includes a plurality of load-bearing assembly rods and a plurality of panels, the plurality of load-bearing assembly rods are arranged at intervals in the hole, the panels are laid on the plurality of load-bearing assembly rods, each load-bearing assembly rod includes a horizontally arranged connector and two load-bearing components, the two load-bearing components are movably connected to the two ends of the connector, each load-bearing component includes a load-bearing rod, an upper limit piece and a lower limit piece, the two ends of the connector are respectively provided with internal threads in opposite directions, one end of the load-bearing rods of the two load-bearing components are respectively threadedly connected to the two ends of the connector, the length of the corresponding load-bearing assembly rod can be adjusted by rotating the connector, and the other ends of the load-bearing rods of the two load-bearing components are respectively connected to the corresponding upper limit pieces The upper end of the upper limit rod is vertically connected to the lower limit rod of the upper mouth, and the other end of the two load-bearing rods is vertically connected to the corresponding upper limit vertical rod. The upper limit rod is placed on the floor of the hole, and the lower limit rod comprises a lower limit screw, a lower limit rod and a lower limit nut. One end of the lower limit screw is vertically connected to one end of the lower limit rod to form an L-shaped structure, and the lower limit screw is threadedly connected to the lower limit nut. The lower limit nut is connected to the lower end of the corresponding upper limit vertical rod through a rotating shaft. When the lower limit rod is rotated to a horizontal state around the axis of the rotating shaft, it can rest against the lower surface of the floor. The load-bearing rod and the panel have different sizes and specifications for selection. The method comprises the following steps:

[0010] Step 1: Measure the size of the opening and determine the upper load that the opening needs to withstand after it is covered;

[0011] Step 2: Select the length of the load-bearing rod according to the size of the opening so that the length of the load-bearing composite rod meets the requirement of covering the width of the opening; calculate and determine the lateral spacing of the load-bearing composite rods based on the upper load conditions;

[0012] Step 3: According to the thickness of the floor slab, by adjusting the position of the lower limit nut on the lower limit screw, the distance between the upper limit horizontal rod and the lower limit polished rod can be adjusted, so that the distance between the upper limit horizontal rod and the lower limit polished rod can adapt to floor slabs of different thicknesses;

[0013] Step 4: Install the opening protection device at the opening, and respectively set a sensor between the upper limit horizontal rod of the load-bearing assembly rod and the floor slab at the four corners of the opening, and connect the sensors to the data acquisition and transmission device respectively;

[0014] Step 5: The data acquisition and transmission device sends the information collected by the sensor to the control system in real time to monitor the displacement of the cave entrance protection device.

[0015] Preferably, in the method for using the above-mentioned modular construction hole protection system, a bearing component anti-loosening structure is provided on each bearing component, and the bearing component anti-loosening structure includes an adjusting nut, a limit block, a threaded connecting rod, a clamp, a connecting rod, a block, a baffle and an anti-loosening spring, the load-bearing rod is provided with a cavity, the threaded connecting rod, the clamp, the connecting rod, the baffle and the anti-loosening spring are arranged in the cavity of the load-bearing rod, one end of the threaded connecting rod is provided with an external thread and is threadedly connected to the adjusting nut, the other end of the threaded connecting rod is coaxially fixedly connected with the clamp and the connecting rod respectively, the clamp is located on the outside of the connecting rod, the end of the connecting rod away from the clamp is provided with a vertical baffle, and the end of the load-bearing rod connected to the connector is provided with a The end plate, one end of the anti-loosening spring is connected to the baffle, and the other end is connected to the end plate, one end of the adjusting nut and the other end of the adjusting nut are exposed to the outside, the limit block is fixedly arranged inside the load-bearing rod, and the limit block is provided with a through hole for the adjusting nut to pass through, the stop block is fixedly arranged inside the load-bearing rod, and the stop block is provided with a through hole for the connecting rod to pass through, the clamping member includes a pair of outward-warping claws and a mounting plate, the pair of outward-warping claws are symmetrically arranged on the mounting plate, and the mounting plate is fixedly sleeved on the threaded connecting rod, the side of the block opposite to the clamping member is provided with a slope matching the claw, the rod wall of the load-bearing rod is provided with an open groove for the claw to pass through, and the end of the connector is provided with a groove for the claw to extend into.

[0016] Preferably, in the method for using the above-mentioned modular construction opening protection system, when installing the opening protection device at the opening, the two bearing components are first assembled into a whole through the connector, and the length of the bearing assembly rod is preliminarily adjusted according to the width of the opening. When the width of the opening is preliminarily reached, the bearing assembly rod is placed into the opening, and the connector is continued to be rotated so that the lower opening limit piece is tightened against the floor slab; when the lower opening limit piece is tightened against the floor slab, the lower opening limit screw touches the adjusting nut, and the adjusting nut drives the clamping piece to move backward through the threaded connecting rod and compresses the anti-loosening spring. When the claw moves backward, it is blocked by the block and squeezed upward along the slope of the block. When the groove of the connector is rotated to the claw position, the claw enters the groove, so that the connector is locked and cannot rotate, thereby completing the installation of the bearing assembly rod; then the remaining bearing assembly rods are installed in the same way according to the determined spacing; finally, the corresponding panel is selected according to the length of the bearing assembly rod, and the panel is connected and fixed to the bearing assembly rod by bolts, thereby completing the installation of the opening protection device.

[0017] Preferably, in the method of using the above-mentioned modular construction hole protection system, when removing the hole protection device at the hole, first remove the panel, rotate the adjusting nut, so that the adjusting nut moves along the axial direction of the threaded connecting rod away from the lower limit screw, and a gap is generated between the lower limit screw and the adjusting nut. The baffle moves forward under the action of the anti-loosening spring, driving the card to exit the groove of the connector, and the connector resumes the rotation function. By rotating the connector, the length of the load-bearing assembly rod is shortened. When the length of the load-bearing assembly rod is less than the width of the hole, the load-bearing assembly rod is removed from the hole, and the rest of the load-bearing assembly rod is removed in the same way to complete the removal of the hole protection device.

[0018] Preferably, in the method of using the above-mentioned modular construction hole protection system, the lower mouth limit piece is designed by weight ratio and always remains open in a natural state. When the lower mouth limit screw touches the hole wall, it starts to rotate until the lower mouth limit screw is in a vertical state and the lower mouth limit light rod is in a horizontal state, so that the lower mouth limit screw and the lower mouth limit light rod are in contact with the edge of the hole.

[0019] Preferably, in the method of using the above-mentioned modular construction hole protection system, the load-bearing rods and panels have different sizes and specifications for selection. When in use, they are assembled according to the hole size and the upper load conditions to form an assembled hole protection device suitable for different hole sizes and upper loads. The load-bearing rods are designed to have different lengths, and the shortest load-bearing rod is defined as level 1, the slightly longer one is positioned as level 2, and the longer one is positioned as level 3, and so on. The length of the level 1 load-bearing rod is L1, the length that the connector can adjust is L0, and the lengths of the first 4 levels of load-bearing rods are L1, L1+L0, L1+3L0, and L1+7L0, respectively.

[0020] Preferably, in the method of using the above-mentioned modular construction opening protection system, the cross-sectional dimensions of the load-bearing rods and the lateral spacing between adjacent load-bearing combination rods are designed based on a medium-width opening. When the opening width decreases, the lateral spacing between the load-bearing combination rods is increased according to the calculation results; when the opening width increases, the lateral spacing between the load-bearing combination rods is reduced according to the calculation results, thereby adapting to different opening widths and upper loads by adjusting the lateral spacing between the load-bearing combination rods.

[0021] Preferably, in the method of using the above-mentioned modular construction hole protection system, when the lower mouth limit piece is fastened to the floor slab, the lower mouth limit screw triggers the adjusting nut, and the adjusting nut drives the clamping piece to move backward through the threaded connecting rod and compresses the anti-loosening spring. When the claw moves backward, it is blocked by the block and squeezed upward along the slope of the block. When the groove of the connector rotates to the claw position, the claw enters the groove, so that the connector is locked and cannot rotate; when the connector needs to be unlocked, the adjusting nut is rotated so that the adjusting nut moves axially along the threaded connecting rod away from the lower mouth limit screw, and a gap is generated between the lower mouth limit screw and the adjusting nut. The baffle moves forward under the action of the anti-loosening spring, and the baffle drives the clamping piece to exit the connector groove through the connecting rod and the threaded connecting rod, and the connector resumes its rotation function.

[0022] Preferably, in the method of using the above-mentioned modular construction opening protection system, in order to adapt to the different lateral spacings of the load-bearing composite rods, two waist-shaped holes are respectively provided at both ends of the panel, and the panel and the load-bearing component are connected into one by panel fastening bolts, and the waist-shaped holes are perpendicular to the axial direction of the load-bearing composite rods.

[0023] Preferably, in the above-mentioned modular construction opening protection system with displacement monitoring function, the sensor includes a support block, two pads, a sensing spring, an inverted U-shaped cover, contact A, contact B, contact C and an electronic tag, the support block is arranged on the floor slab, the inverted U-shaped cover includes a top plate and side walls, the top of the side wall is arranged around the top plate, the two pads are arranged at intervals on the support block, the inverted U-shaped cover is arranged on the outside of the two pads and the support block, the top plate is located above the pad, the side wall is located on the outside of the support block, the sensing spring is arranged between the top plate and the support block, the contact B is arranged on the side of the support block, and the contact A and contact C are arranged at intervals. On the inner surface of the side wall of the inverted U-shaped cover, the contact A is located above the contact C, and the four sensors, data acquisition and transmission device and power supply are connected in series to form a loop. When an upper limit piece is set on the inverted U-shaped cover of the sensor, contact A and contact B are in contact, the corresponding electronic tag is not connected to the loop, and no current passes through the corresponding electronic tag; when the upper limit piece set on the inverted U-shaped cover of the sensor is removed, contact C and contact B are in contact, the corresponding electronic tag is connected to the loop, and current passes through the corresponding electronic tag. The data acquisition and transmission device can send information on whether the current of the electronic tag passes to the control system to monitor the displacement of the hole protection device.

[0024] Preferably, in the above-mentioned modular construction opening protection system with displacement monitoring function, when each sensor is under pressure, no current passes through the corresponding electronic tag, and the data acquisition and transmission device sends data once at a certain time interval to report that the opening protection device is in a safe state; when a sensor is not under pressure, current passes through the corresponding electronic tag, and the data acquisition and transmission device immediately pushes abnormal information of the opening protection device.

[0025] It can be seen from the technical solutions disclosed above that, compared with the prior art, the present invention has the following beneficial effects:

[0026] The present embodiment discloses a method for using a modular construction hole protection system, which adopts a hole protection device, a plurality of sensors, a data acquisition and transmission device, and a control system. The hole protection device includes a plurality of load-bearing assembly rods and a plurality of panels. The plurality of load-bearing assembly rods are arranged at intervals at the hole, and the panels are laid on the plurality of load-bearing assembly rods. Each load-bearing assembly rod includes a horizontally arranged connector and two load-bearing components. The two load-bearing components are movably connected to the two ends of the connector. Each load-bearing component includes a load-bearing rod, an upper limiter, and a lower limiter. The two ends of the connector are respectively provided with inner screws in opposite directions. The upper end of the upper limit vertical rod is vertically connected to the upper limit horizontal rod, and the other end of the two load-bearing rods is vertically connected to the corresponding upper limit vertical rod. The upper end of the upper limit vertical rod is vertically connected to one end of the upper limit horizontal rod, and the other end of the two load-bearing rods is vertically connected to the corresponding upper limit vertical rod. The upper limit horizontal rod is placed on the floor slab of the opening, and the lower limit member includes a lower limit screw. The lower end of the upper limit rod is connected to the lower limit rod by a screw thread, and the lower limit rod is connected to the lower limit rod by a rotating shaft. When the lower limit rod is rotated to a horizontal state around the axis of the rotating shaft, it rests on the lower surface of the floor slab. By adjusting the position of the lower limit nut on the lower limit screw, the distance between the upper limit horizontal rod and the lower limit rod can be adjusted, so that the distance between the upper limit horizontal rod and the lower limit rod can adapt to floors of different thicknesses. A sensor is respectively arranged between the upper limit horizontal rod of the load-bearing combined rod at the four corners of the opening and the floor slab, and the sensors are respectively connected to the data acquisition and transmission device. The data acquisition and transmission device can send the information collected by the sensor to the control system to monitor the displacement of the opening protection device, so that the modular construction opening protection system has the function of self-sensing the displacement of the opening protection device, can identify whether the opening protection device is moved, and alarm in time when the opening protection device is displaced, reminding the management personnel to maintain it as soon as possible, thereby effectively avoiding the risk of construction workers being injured and falling due to the displacement of the opening protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a top view schematic diagram of a modular construction opening protection system with a displacement monitoring function according to the present invention.

[0028] Figure 2 yes Figure 1 AA cross-sectional view.

[0029] Figure 3 It is a side view schematic diagram of the load-bearing component.

[0030] Figure 4 It is a top view schematic diagram of the load-bearing component.

[0031] Figure 5 yes Figure 4 BB cross-sectional view.

[0032] Figure 6 This is a schematic diagram of the assembly of the load-bearing part and the connector (the claw extends into the groove).

[0033] Figure 7 yes Figure 6 CC cross-sectional view (claws extending into grooves).

[0034] Figure 8 It is a schematic diagram of the assembly of the bearing part and the connector (the claws are out of the groove).

[0035] Figure 9 yes Figure 8 DD cross-sectional view (claws out of groove).

[0036] Figure 10 It is a structural diagram of the connector.

[0037] Figure 11 yes Figure 10 EE cross-sectional view.

[0038] Figure 12 yes Figure 11 FF cross-sectional view.

[0039] Figure 13 This is an assembly diagram of the connector's lower limit screw, lower limit nut, and rotating shaft.

[0040] Figure 14 This is a structural diagram of the connector and the load-bearing component before connection.

[0041] Figure 15 It is a schematic diagram of the structure after the connector and the load-bearing component are connected.

[0042] Figure 16 It is a schematic diagram of the assembly of the panel and the load-bearing composite rods (increasing the lateral spacing of the load-bearing composite rods).

[0043] Figure 17 It is a schematic diagram of the assembly of the panel and the load-bearing composite rods (reducing the lateral spacing between the load-bearing composite rods).

[0044] Figure 18 It is a schematic diagram of the structure of the sensor when it is under pressure.

[0045] Figure 19It is a schematic diagram of the structure when the sensor is not under pressure.

[0046] Figure 20 It is a circuit connection diagram of the sensor and data acquisition and transmission device (no sensor is under pressure).

[0047] Figure 21 This is a circuit connection diagram of the sensor and data acquisition and transmission device (1# sensor is under pressure).

[0048] In the figure: 1-connector, 11-groove, 2-bearing component, 21-load-bearing rod, 211-opening groove, 212-panel fixed limit hole, 22-upper limit piece, 221-upper limit horizontal rod, 222-upper limit vertical rod, 23-lower limit piece, 231-lower limit screw, 232-lower limit polished rod, 233-lower limit nut, 234-rotating shaft, 3-panel, 31-waist hole, 4-bearing component anti-loosening structure, 41-adjusting nut, 42-limit Block, 43-threaded connecting rod, 44-clamp, 441-claw, 442-mounting plate, 45-connecting rod, 46-stopper, 47-baffle, 48-anti-loosening spring, 5-sensor, 51-support block, 52-pad, 53-sensing spring, 54-inverted U-shaped cover, 541-top plate, 542-side wall, 55-contact A, 56-contact B, 57-contact C, 58-electronic tag, 6-data acquisition and transmitting device, 7-panel fastening bolts, 8-floor slab, 9-power supply. DETAILED DESCRIPTION

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following examples, combined with the accompanying drawings, will provide a detailed description of the technical content and features of the present invention. It should be noted that the drawings are all in a very simplified form and are not precisely proportioned, and are only used to conveniently and clearly assist in illustrating the purpose of the embodiments of the present invention. For ease of description, the "upper" and "lower" described below are consistent with the upper and lower directions in the accompanying drawings, but this does not constitute a limitation of the technical solution of the present invention.

[0050] See also Figures 1 to 21, this embodiment discloses a method for using a modular construction hole protection system, the modular construction hole protection system includes a hole protection device, a plurality of sensors 5, a data acquisition and transmission device 6 and a control system, the hole protection device includes a plurality of load-bearing assembly rods and a plurality of panels, the plurality of load-bearing assembly rods are arranged at intervals at the hole, the panels are laid on the plurality of load-bearing assembly rods, each load-bearing assembly rod includes a horizontally arranged connector 1 and two load-bearing components 2, the two load-bearing components 2 are movably connected to the two ends of the connector 1, each load-bearing component 2 includes a load-bearing rod 21, an upper limit piece 22 and a lower limit piece 23, the two ends of the connector 1 are respectively provided with internal threads in opposite directions, one end of the load-bearing rods 21 of the two load-bearing components 2 is respectively threadedly connected to the two ends of the connector 1, and the length of the corresponding load-bearing assembly rod can be adjusted by rotating the connector 1, and the other ends of the load-bearing rods 21 of the two load-bearing components 2 are respectively fixedly connected to the corresponding upper limit pieces 22, It is an L-shaped structure vertically connected by an upper limit horizontal rod 221 and an upper limit vertical rod 222. The upper end of the upper limit vertical rod 222 is vertically connected to one end of the upper limit horizontal rod 221. The other ends of the two load-bearing rods 21 are vertically connected to the corresponding upper limit vertical rods 222. The upper limit horizontal rod 221 is placed on the floor 8 of the hole. The lower limit member 23 includes a lower limit screw 231, a lower limit light rod 232 and a lower limit nut 233. One end of the upper limit screw 231 is vertically connected to one end of the lower limit rod 232 to form an L-shaped structure. The lower limit screw 231 is threadedly connected to the lower limit nut 233. The lower limit nut 233 is connected to the lower end of the corresponding upper limit vertical rod 222 through a rotating shaft 234. When the lower limit rod 232 is rotated to a horizontal state around the rotating shaft 234, it can rest on the lower surface of the floor 8. The load-bearing rod 21 and the panel have different sizes and specifications for selection. The method includes the following steps:

[0051] Step 1: Measure the size of the opening and determine the upper load that the opening needs to withstand after it is covered;

[0052] Step 2: Select the length of the load-bearing rod 21 according to the size of the opening so that the length of the load-bearing assembly rod meets the requirement of covering the width of the opening; calculate and determine the lateral spacing of the load-bearing assembly rod according to the upper load conditions;

[0053] Step 3: According to the thickness of the floor slab 8, by adjusting the position of the lower limit nut 233 on the lower limit screw 231, the distance between the upper limit horizontal rod 221 and the lower limit polished rod 232 can be adjusted, so that the distance between the upper limit horizontal rod 221 and the lower limit polished rod 232 can adapt to floor slabs of different thicknesses;

[0054] Step 4: Install the hole protection device at the hole, and set a sensor 5 between the upper limit horizontal rod 221 of the load-bearing combined rod and the floor 8 at the four corners of the hole, and connect the sensor 5 to the data acquisition and transmission device 6 respectively;

[0055] In step 5, the data acquisition and transmission device 6 sends the information collected by the sensor 5 to the control system in real time to monitor the displacement of the cave entrance protection device. When the cave entrance protection device is displaced, an alarm is issued in time to remind the management personnel to carry out maintenance as soon as possible, thereby effectively avoiding the risk of construction workers being injured or falling due to the displacement of the cave entrance protection device.

[0056] Preferably, in the method of using the above-mentioned modular construction hole protection system, there are two rotating shafts 234, which are symmetrically arranged on the outer surface of the lower mouth limiting nut 233, and the rotating shafts 234 are respectively perpendicular to the lower mouth limiting screw 231, and the upper mouth limiting vertical rods 222 are two, and the lower ends of the two upper mouth limiting vertical rods 222 are respectively mounted on the corresponding rotating shafts 234, so that the lower mouth limiting nut 233 can be rotated relative to the corresponding upper mouth limiting vertical rod 222 without affecting the mutual movement of the lower mouth limiting nut 233 and the lower mouth limiting screw 231.

[0057] Preferably, in the method of using the above-mentioned modular construction hole protection system, a bearing component anti-loosening structure 4 is provided on each bearing component 2, and the bearing component anti-loosening structure 4 includes an adjusting nut 41, a limit block 42, a threaded connecting rod 43, a clamp 44, a connecting rod 45, a block 46, a baffle 47 and an anti-loosening spring 48. The load-bearing rod 21 is provided with a cavity, and the threaded connecting rod 43, the clamp 44, the connecting rod 45, the baffle 47 and the anti-loosening spring 48 are arranged in the cavity of the load-bearing rod 21, one end of the threaded connecting rod 43 is provided with an external thread and is threadedly connected to the adjusting nut 41, and the other end of the threaded connecting rod 43 is coaxially fixedly connected with the clamp 44 and the connecting rod 45 respectively, the clamp 44 is located on the outside of the connecting rod 45, and a vertical baffle 47 is provided on the end of the connecting rod 45 away from the clamp 44, and an end plate is provided at the end of the load-bearing rod 21 connected to the connector 1. One end of the anti-loosening spring 48 is connected to the baffle 47, and the other end is connected to the end plate. One end of the adjusting nut 41 and the other end of the adjusting nut 41 are exposed to the outside. The limit block 42 is fixedly arranged inside the load-bearing rod 21, and a through hole for the adjusting nut 41 to pass through is provided on the limit block 42. The stop block 46 is fixedly arranged inside the load-bearing rod 21, and a through hole for the connecting rod 45 to pass through is provided on the stop block 46. The clamping member 44 includes a pair of outward-warping claws 441 and a mounting plate 442. The pair of outward-warping claws 441 are symmetrically arranged on the mounting plate 442, and the mounting plate 442 is fixedly sleeved on the threaded connecting rod 43. The side of the stop block 46 opposite to the clamping member 44 is provided with a slope matching the claw 441. An open groove 211 for the claw 441 to pass through is provided on the rod wall of the load-bearing rod 21, and a groove 11 for the claw 441 to extend into is provided at the end of the connector 1.

[0058] Preferably, in the above-mentioned method of using the modular construction hole protection system, the rotating shaft 234 is arranged on the outer surface of the lower mouth limiting nut 233, the rotating shaft 234 is perpendicular to the lower mouth limiting screw 231, and the lower end of the upper mouth limiting vertical rod 222 is provided with a pin hole matching the rotating shaft 234, so that the lower mouth limiting nut 233 can be rotated around the rotating shaft 234 relative to the corresponding upper mouth limiting vertical rod 222 without affecting the mutual movement of the lower mouth limiting nut 233 and the lower mouth limiting screw 231.

[0059] Preferably, in the method for using the above-mentioned modular construction hole protection system, when installing the hole protection device at the hole, first assemble the two bearing components 2 into a whole through the connector 1, preliminarily adjust the length of the bearing assembly rod according to the hole width, and when the hole width is preliminarily reached, put the bearing assembly rod into the hole, and continue to rotate the connector 1 so that the lower mouth limit piece 23 is pressed against the floor 8; when the lower mouth limit piece 23 is pressed against the floor 8, the lower mouth limit screw 231 touches the adjusting nut 41, and the adjusting nut 41 drives the clamping piece 44 to move backward through the threaded connecting rod 43. The anti-loosening spring 48 is activated and compressed. When the claw 441 moves backward, it is blocked by the block 46 and squeezed upward along the slope of the block 46. When the groove 11 of the connector 1 rotates to the position of the claw 441, the claw 441 enters the groove 11, so that the connector 1 is locked and cannot rotate, thereby completing the installation of the load-bearing assembly rod; then, the remaining load-bearing assembly rods are installed in the same way according to the determined spacing; finally, the corresponding panel is selected according to the length of the load-bearing assembly rod, and the panel is connected and fixed to the load-bearing assembly rod by bolts, thereby completing the installation of the hole protection device.

[0060] Preferably, in the method of using the above-mentioned modular construction hole protection system, when removing the hole protection device at the hole, first remove the panel 3, rotate the adjusting nut 41, so that the adjusting nut 41 moves axially along the threaded connecting rod 43 in the direction away from the lower mouth limit screw 231, and a gap is generated between the lower mouth limit screw 231 and the adjusting nut 41. The baffle 47 moves forward under the action of the anti-loosening spring 48, driving the clamping member 44 to exit the groove 11 of the connector 1, and the connector 1 resumes the rotation function. By rotating the connector 1, the length of the load-bearing assembly rod is shortened. When the length of the load-bearing assembly rod is less than the width of the hole, the load-bearing assembly rod is removed from the hole, and the rest of the load-bearing assembly rods are removed in the same way to complete the removal of the hole protection device.

[0061] Preferably, in the method of using the above-mentioned modular construction hole protection system, the lower mouth limit piece 23 is designed by weight ratio and always remains open in a natural state. When the lower mouth limit screw 231 touches the hole wall, it starts to rotate until the lower mouth limit screw 231 is in a vertical state and the lower mouth limit light rod 232 is in a horizontal state, so that the lower mouth limit screw 231 and the lower mouth limit light rod 232 are in contact with the edge of the hole, that is, the lower mouth limit piece 23 is locked with the hole.

[0062] Preferably, in the method for using the modular construction opening protection system, in order to adapt to different opening widths and upper loads, the load-bearing rods 21 are designed to have different lengths. The load-bearing rods 21 of different lengths are connected through the connector 1 and can be applied to openings of different widths. The shortest load-bearing rod 21 is defined as level 1, the slightly longer one is positioned as level 2, the longer one is positioned as level 3, and so on. The principles for determining the rod length are as follows:

[0063] To ensure that the load-bearing rod 21 can fully cover the hole after connection, the length of the first-level load-bearing rod 21 is L1, and the adjustable length of the connector 1 is L0. Figure 1 It can be seen that the length of the two first-level load-bearing rods 21 after being combined with the connector 1 (after the load-bearing rods 21 are anchored into the connector 1 to a safe length) is 2L1+L0. As the connector 1 rotates, the load-bearing rods 21 continue to penetrate the connector 1. When the two connector 1 ends touch, the connector 1 cannot rotate. At this time, the combined structure length of the load-bearing rods 21 is the shortest, which is 2L1.

[0064] Therefore, the covered opening width range is: 2L1-2L1+L0

[0065] Let the length of the second-level load-bearing rod 21 be L2=L1+L0

[0066] By combining L1 and L2, the width of the opening covered is: 2L1~2L2+L0=2L1+3L0

[0067] When designing the length of L3, it is considered that the combination of L3 and the shortest section L1 can meet the longest 2L2+L0 docking coverage with the previous level combination, so the optimal combination of rod lengths can be achieved.

[0068] 2L2+L0=L3+L1

[0069] Then L3=2L2+L0-L1Substitute L2=L1+L0

[0070] L3=L2+2L0

[0071] The width of the opening covered by the combination of L1, L2 and L3 is: 2L1 to 2L3 + L0

[0072] The calculation method of L4 length is similar to that of L3. After L4 is combined with L1 and connected to the widest part of the previous level, the length of all members can be maximized:

[0073] L4+L1=2L3+L0

[0074] L4=2L3+L0-L1

[0075] L4=2L3+L0-L1

[0076] L4=L3+4L0

[0077] Therefore, it can be determined that the lengths of the first four load-bearing rods 21 are L1, L1+L0, L1+3L0, L1+7L0, and so on, and the lengths of other load-bearing rods 21 can be calculated.

[0078] In this embodiment, the load-bearing rod 21 is designed to have different lengths. The load-bearing rods 21 of different lengths are connected and combined through the connector 1 to be suitable for holes of different widths. The shortest load-bearing rod 21 is defined as level 1, the slightly longer one is positioned as level 2, and the longer one is positioned as level 3, and so on. The length of the level 1 load-bearing rod 21 is L1, and the length that the connector 1 can adjust is L0. The lengths of the first four levels of load-bearing rods 21 are L1, L1+L0, L1+3L0, and L1+7L0, respectively.

[0079] Since the load borne by the opening protection device changes accordingly with the change of the opening width, in order to ensure the load-bearing safety and take into account the economy of the opening protection device, the cross-sectional dimensions of the load-bearing rod 21 and the lateral spacing of adjacent load-bearing combination rods are designed based on the medium-width opening. When the opening width decreases, the lateral spacing of the load-bearing combination rods is increased according to the calculation results; when the opening width increases, the lateral spacing of the load-bearing combination rods is reduced according to the calculation results, thereby adapting to different opening widths and upper loads by adjusting the lateral spacing of the load-bearing combination rods.

[0080] Preferably, in the method of using the above-mentioned modular construction hole protection system, when the lower mouth limit piece 23 is fastened to the floor 8, the lower mouth limit screw 231 touches the adjusting nut 41, and the adjusting nut 41 drives the clamping piece 44 to move backward through the threaded connecting rod 43 and compresses the anti-loosening spring 48. When the claw 441 moves backward, it is blocked by the block 46 and squeezed upward along the slope of the block 46. When the groove 11 of the connector 1 rotates to the position of the claw 441, the claw 441 enters the groove 11. The connector 1 is locked and cannot rotate; when the connector 1 needs to be unlocked, the adjusting nut 41 is rotated so that the adjusting nut 41 moves axially along the threaded connecting rod 43 in the direction away from the lower limit screw, and a gap is generated between the lower limit screw 231 and the adjusting nut 41. The baffle 47 moves forward under the action of the anti-loosening spring 48, and the baffle 47 drives the clamping part 44 to exit the groove 11 of the connector 1 through the connecting rod 45 and the threaded connecting rod 43, and the connector 1 resumes its rotation function.

[0081] Preferably, in the method of using the above-mentioned modular construction hole protection system, in order to adapt to the different lateral spacings of the load-bearing combination rods, two waist-shaped holes 31 are respectively provided at both ends of the panel 3, and the panel and the load-bearing component 2 are connected into one through the panel fastening bolts 7. The waist-shaped holes 31 are perpendicular to the axial direction of the load-bearing combination rod, and the load-bearing rod 21 is provided with a panel fixing limit hole 212 for installing the panel fastening bolts 7.

[0082] Preferably, in the method for using the above-mentioned modular construction hole protection system, the sensor 5 includes a support block 51, two pads 52, a sensing spring 53, an inverted U-shaped cover 54, a contact A55, a contact B56, a contact C57 and an electronic tag 58, the support block 51 is arranged on the floor 8, the inverted U-shaped cover 54 includes a top plate 541 and a side wall 542, the top of the side wall 542 is arranged around the top plate 541, the two pads 52 are arranged at intervals on the support block 51, the inverted U-shaped cover 54 is arranged on the outside of the two pads 52 and the support block 51, the top plate 541 is located above the pad 52, the side wall 542 is located on the outside of the support block 51, the sensing spring 53 is arranged between the top plate 541 and the support block 51, the contact B56 is arranged on the side of the support block 51, the contact A 55 and contact C57 are arranged at intervals on the inner surface of the side wall 542 of the inverted U-shaped cover 54, and the contact A55 is located above the contact C57. The four sensors 5, the data acquisition and transmitting device 6 and the power supply 9 are connected in series to form a loop. When the upper limit piece 22 is set on the inverted U-shaped cover 54 of the sensor 5, the contact A55 and the contact B56 are in contact, and the corresponding electronic tag 58 is not connected to the loop, and the corresponding electronic tag 58 has no current passing through; when the upper limit piece 22 set on the inverted U-shaped cover 54 of the sensor 5 is removed, the contact C57 and the contact B56 are in contact, and the corresponding electronic tag 58 is connected to the loop, and the corresponding electronic tag 58 has current passing through. The data acquisition and transmitting device 6 can send the information of whether the current of the electronic tag 58 passes to the control system to monitor the displacement of the hole protection device.

[0083] Preferably, in the method for using the modular construction tunnel protection system, when each sensor 5 is under pressure, no current flows through the corresponding electronic tag 58, and the data acquisition and transmission device 6 transmits data at regular intervals, reporting that the tunnel protection device is in a safe state. When a sensor 5 is not under pressure, current flows through the corresponding electronic tag 58, and the data acquisition and transmission device 6 immediately transmits information indicating an abnormality of the tunnel protection device. By changing the transmission frequency of the data acquisition and transmission device 6, the system power consumption can be reduced, allowing long-term and reliable monitoring using ordinary batteries.

[0084] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A method for using a modular construction opening protection system, characterized in that: The modular construction opening protection system includes an opening protection device, several sensors, a data acquisition and transmission device and a control system. The opening protection device includes several load-bearing assembly rods and several panels. Several load-bearing assembly rods are arranged at intervals at the opening. The panels are laid on the several load-bearing assembly rods. Each load-bearing assembly rod includes a horizontally arranged connector and two load-bearing components. The two load-bearing components are movably connected to the two ends of the connector. Each load-bearing component includes a load-bearing rod, an upper limiter and a lower limiter. The two ends of the connector are respectively provided with internal threads in opposite directions. One end of the load-bearing rods of the two load-bearing components is respectively threadedly connected to the two ends of the connector. The length of the corresponding load-bearing assembly rod can be adjusted by rotating the connector. The other ends of the load-bearing rods of the two bearing components are fixedly connected to the corresponding upper limit pieces respectively. The upper limit piece is an L-shaped structure vertically connected by an upper limit horizontal rod and an upper limit vertical rod. The upper end of the upper limit vertical rod is vertically connected to one end of the upper limit horizontal rod, and the other ends of the load-bearing rods of the two bearing components are vertically connected to the corresponding upper limit vertical rod. The upper limit horizontal rod is placed on the floor slab of the opening, and the lower limit piece includes a lower limit screw, a lower limit light rod and a lower limit nut. One end of the lower limit screw is vertically connected to one end of the lower limit light rod to form an L-shaped structure, the lower limit screw is threadedly connected to the lower limit nut, and the lower limit nut is connected to the corresponding upper limit vertical rod. The lower end is connected by a rotating shaft, and the lower limit rod is able to rest against the lower surface of the floor slab when it rotates around the axis of the rotating shaft to a horizontal state. The load-bearing rod and the panel have different sizes and specifications for selection. A load-bearing component anti-loosening structure is provided on each load-bearing component, and the load-bearing component anti-loosening structure includes an adjusting nut, a limit block, a threaded connecting rod, a clamp, a connecting rod, a block, a baffle and an anti-loosening spring. The load-bearing rod is provided with a cavity, and the threaded connecting rod, the clamp, the connecting rod, the baffle and the anti-loosening spring are arranged in the cavity of the load-bearing rod, one end of the threaded connecting rod is provided with an external thread and is threadedly connected to one end of the adjusting nut, and the other end of the threaded connecting rod is coaxially fixedly connected to the clamp and the connecting rod respectively, the clamp is located on the outside of the connecting rod, and the connecting The cam is fixedly mounted on the support rod and has a locking plate which is adapted to lock the cam and lock the support rod so that the cam can lock the cam and lock the support rod together.The end of the connector is provided with a groove for the claw to extend into. The method comprises the following steps: Step 1: Measure the size of the opening and determine the upper load that the opening needs to withstand after it is covered; Step 2: Select the length of the load-bearing rod according to the size of the opening so that the length of the load-bearing composite rod meets the requirement of covering the width of the opening; calculate and determine the lateral spacing of the load-bearing composite rods based on the upper load conditions; Step 3: According to the thickness of the floor slab, by adjusting the position of the lower limit nut on the lower limit screw, the distance between the upper limit horizontal rod and the lower limit polished rod can be adjusted, so that the distance between the upper limit horizontal rod and the lower limit polished rod can adapt to floor slabs of different thicknesses; Step 4: Install the opening protection device at the opening, and respectively set a sensor between the upper limit horizontal rod of the load-bearing assembly rod and the floor slab at the four corners of the opening, and connect the sensors to the data acquisition and transmission device respectively; Step 5: The data acquisition and transmission device sends the information collected by the sensor to the control system in real time to monitor the displacement of the cave entrance protection device.

2. The method for using the modular construction opening protection system according to claim 1, characterized in that: When installing the opening protection device at the opening, first assemble the two load-bearing components into a whole through the connector, preliminarily adjust the length of the load-bearing composite rod according to the width of the opening, put the load-bearing composite rod into the opening when the initial opening width is reached, and continue to rotate the connector to tighten the lower opening limit piece against the floor slab; when the lower opening limit piece is tightened against the floor slab, the lower opening limit screw touches the adjusting nut, and the adjusting nut drives the clamping piece to move backward through the threaded connecting rod and compresses the anti-loosening spring. When the claw moves backward, it is blocked by the block and squeezed upward along the slope of the block. When the groove of the connector rotates to the claw position, the claw enters the groove, so that the connector is locked and cannot rotate, thereby completing the installation of the load-bearing composite rod; then install the remaining load-bearing composite rods in the same way according to the determined spacing; finally, select the corresponding panel according to the length of the load-bearing composite rod, and connect and fix the panel to the load-bearing composite rod with bolts to complete the installation of the opening protection device.

3. The method for using the modular construction opening protection system according to claim 1, characterized in that: When removing the hole protection device at the hole, first remove the panel and rotate the adjusting nut so that the adjusting nut moves along the axial direction of the threaded connecting rod away from the lower limit screw, creating a gap between the lower limit screw and the adjusting nut. The baffle moves forward under the action of the anti-loosening spring, driving the card to exit the groove of the connector, and the connector resumes its rotation function. By rotating the connector, the length of the load-bearing assembly rod is shortened. When the length of the load-bearing assembly rod is less than the width of the hole, remove the load-bearing assembly rod from the hole, and remove the remaining load-bearing assembly rods in the same way to complete the removal of the hole protection device.

4. The method for using the modular construction opening protection system according to claim 1, wherein: The lower mouth limit piece is designed by weight ratio and always remains open in a natural state. When the lower mouth limit screw touches the hole wall, it starts to rotate until the lower mouth limit screw is in a vertical state and the lower mouth limit rod is in a horizontal state, so that the lower mouth limit screw and the lower mouth limit rod are in contact with the edge of the hole.

5. The method for using the modular construction opening protection system according to claim 1, wherein: The load-bearing rods and panels are available in different sizes and specifications. When in use, they are assembled according to the size of the hole and the upper load conditions to form an assembled hole protection device suitable for different hole sizes and upper loads. The load-bearing rods are designed to have different lengths. The shortest load-bearing rod is defined as level 1, the slightly longer one is positioned as level 2, and the longer one is positioned as level 3, and so on. The length of the level 1 load-bearing rod is L1, the length that the connector can adjust is L0, and the lengths of the first four levels of load-bearing rods are L1, L1+L0, L1+3L0, and L1+7L0, respectively.

6. The method for using the modular construction opening protection system according to claim 1, wherein: Taking the medium-width opening as the benchmark, the cross-sectional dimensions of the load-bearing rods and the transverse spacing between adjacent load-bearing composite members are designed. When the opening width decreases, the transverse spacing between the load-bearing composite members is increased according to the calculation results; when the opening width increases, the transverse spacing between the load-bearing composite members is reduced according to the calculation results. In this way, the transverse spacing between the load-bearing composite members can be adjusted to adapt to different opening widths and upper loads.

7. The method for using the modular construction opening protection system according to claim 1, wherein: Two waist-shaped holes are respectively provided at both ends of the panel, and the panel and the bearing component are connected into one body through panel fastening bolts. The waist-shaped holes are perpendicular to the axial direction of the bearing assembly rod.

8. The method for using the modular construction opening protection system according to claim 1, wherein: The sensor includes a support block, two pads, a sensing spring, an inverted U-shaped cover, a contact A, a contact B, a contact C and an electronic tag. The support block is set on the floor slab, the inverted U-shaped cover includes a top plate and side walls, the top of the side walls are set around the top plate, the two pads are set on the support block at intervals, the inverted U-shaped cover is set on the two pads and the outside of the support block, the top plate is located above the pad, the side walls are located on the outside of the support block, the sensing spring is set between the top plate and the support block, the contact B is set on the side of the support block, and the contacts A and C are set on the inner surface of the side walls of the inverted U-shaped cover at intervals. On the upper side, the contact A is located above the contact C, and the four sensors, data acquisition and transmission devices and power supply are connected in series to form a loop. When an upper limiter is set on the inverted U-shaped cover of the sensor, contact A and contact B are in contact, and the corresponding electronic tag is not connected to the loop, and no current passes through the corresponding electronic tag; when the upper limiter set on the inverted U-shaped cover of the sensor is removed, contact C and contact B are in contact, and the corresponding electronic tag is connected to the loop, and current passes through the corresponding electronic tag. The data acquisition and transmission device can send information on whether the current of the electronic tag passes to the control system to monitor the displacement of the hole protection device.

9. The method for using the modular construction opening protection system according to claim 8, wherein: When each sensor is under pressure, no current flows through the corresponding electronic tag, and the data acquisition and transmission device sends data once at a certain time interval to report that the hole protection device is in a safe state; when a sensor is not under pressure, current flows through the corresponding electronic tag, and the data acquisition and transmission device immediately pushes abnormal information of the hole protection device.

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