A cast-in-place support monitoring method and shader used therein

Abstract

The present invention discloses a method for monitoring a cast-in-place support and a shutter used therein. The present invention is to set a laser transmitter on a pier at one end of the support, set a laser receiver on a pier at the other end of the support, and connect the laser receiver to an audible and visual alarm; and set a group of adjustable shutters on the laser beam path between the laser transmitter and the laser receiver, and connect the shutters to the support; when the support is deformed and settled beyond a safe range, the shutter blocks the path of the laser beam, causing the laser receiver to lose the laser signal and issue an alarm. The present invention is applicable to the safety monitoring of all cast-in-place supports, and has the advantages of being safe, convenient, high-precision, and capable of continuous monitoring.

Description

Technical Field

[0001] The invention relates to a cast-in-place bracket monitoring method and a sunshade used therein, belonging to the technical field of cast-in-place building safety monitoring. Background Art

[0002] When constructing beams and slabs using the cast-in-place method, usually a support is set up first, then the formwork is supported on the support, and finally the cast-in-place construction is carried out. The support bears all the weight of the formwork and concrete, so the stability of the support is the key to the safety of cast-in-place construction. In order to ensure the safety of the support, the existing technology is that personnel continuously patrol and inspect inside the support. Sometimes some subtle changes in the support cannot be discovered by the patrol personnel for a while, and eventually the support collapse accident will occur. The collapse of the support often happens in an instant. Once the support collapse accident occurs, the patrol personnel have a very small chance of survival, resulting in heavy casualties. Therefore, a reliable monitoring method and device are needed to replace manual patrols inside the support to eliminate safety hazards. Summary of the invention

[0003] The purpose of the present invention is to provide a cast-in-place support monitoring method and a sunshade used therein, which can immediately send out an audible and visual alarm when the support deflection exceeds a preset value, and timely carry out reinforcement treatment to eliminate safety hazards, thereby overcoming the shortcomings of the prior art.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] The present invention provides a method for monitoring a cast-in-place support. The method comprises the following steps: a laser transmitter is arranged on a pier at one end of the support, a laser receiver is arranged on a pier at the other end of the support, the laser receiver is connected to an audible and visual alarm; and a group of adjustable shutters are arranged on a laser beam path between the laser transmitter and the laser receiver, the shutters are connected to the support; when the support is deformed and settled beyond a safe range, the path of the laser beam is blocked by the shutters, so that the laser receiver loses the laser signal and issues an alarm.

[0006] In the aforementioned cast-in-place support monitoring method, the laser transmitter and the laser receiver are installed at a position close to one side of the support column to ensure that the path of the laser beam is within the adjustment range of the shading device.

[0007] In the aforementioned cast-in-place support monitoring method, the shading device is fixed to the support upright by a clamp, and the position of the clamp on the support upright is adjusted to adjust the upper and lower positions of the shading plate.

[0008] In the aforementioned cast-in-place bracket monitoring method, the clamp and the shading plate are connected by a telescopic rod; the left and right positions of the shading plate are adjusted by the telescopic rod connected to the clamp so that the laser beam passes through the U-shaped notch on the shading plate.

[0009] In the aforementioned cast-in-place bracket monitoring method, when adjusting the shading plate, start from the end of a group of shading plates closest to the laser emitter and adjust them backward in sequence; first stick black tape on the U-shaped notch, and determine the position of the U-shaped notch through which the laser beam passes by irradiating the laser beam on the light spot on the black paper. After adjusting one shading plate, tear off a piece of black tape until all the shading plates are adjusted.

[0010] In the aforementioned cast-in-place bracket monitoring method, the notch of the U-shaped notch is downward, and the length of the U-shaped hole is the safe deformation range; when adjusting the shading plate, the initial position A of the laser beam is at the lower center of the U-shaped notch; when the bracket is in the safe deformation range, the laser beam moves upward along the U-shaped notch to B, and when the deformation of the bracket exceeds the safe range, the laser beam moves to C blocked by the U-shaped notch, and the shading plate blocks the sound and light alarm.

[0011] In the aforementioned cast-in-place support monitoring method, when adjusting the shading plate, it is adjusted according to the deformation of the support. The closer to the position where the deflection deformation is larger in the middle of the support, the closer the initial position of the laser beam is to the notch position of the U-shaped notch.

[0012] The sunshade for monitoring a cast-in-place bracket used in the above method of the present invention comprises a sunshade plate; a U-shaped notch with the notch pointing downward is provided on the sunshade plate; one side of the sunshade plate is connected to a clamp via a telescopic rod.

[0013] Due to the adoption of the above technical scheme, compared with the prior art, the method and sunshade of the present invention are suitable for safety monitoring of all cast-in-place supports, and have the advantages of being safe, convenient, highly accurate, and capable of continuous monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the method of the present invention;

[0015] Figure 2 It is a structural schematic diagram of the sunshade.

[0016] The markings in the attached drawings are: 1-shading plate, 2-U-shaped notch, 3-telescopic rod, 4-hoop, 5-laser transmitter, 6-laser receiver, 7-shading device, 8-bracket, 9-pillar, 10-light spot. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] A cast-in-place support monitoring method of the present invention, such as Figure 1 and Figure 2As shown, the method is to set a laser transmitter 5 on the pier 9 at one end of the bracket 8, and set a laser receiver 6 on the pier 9 at the other end of the bracket 8, and the laser receiver 5 is connected to the sound and light alarm; and set a group of adjustable shading devices 7 on the laser beam path between the laser transmitter 5 and the laser receiver 6, and the shading devices 7 are connected to the bracket 8; when the bracket 8 is deformed and settled beyond the safe range, the path of the laser beam is blocked by the shading device 7, so that the laser receiver 6 loses the laser signal and issues an alarm. The laser transmitter 5 and the laser receiver 6 are installed at a position close to one side of the bracket 8 column to ensure that the path of the laser beam is within the adjustment range of the shading device 7. The shading device 7 is fixed to the bracket 8 column through the clamp 4, and the position of the clamp 4 on the bracket 8 column is adjusted to adjust the upper and lower positions of the shading plate 1. The clamp 4 is connected to the shading plate 1 through a telescopic rod 3; the left and right positions of the shading plate 1 are adjusted through the telescopic rod 3 connected to the clamp 4, so that the laser beam passes through the U-shaped notch 2 on the shading plate. When adjusting the shading plate 1, start from the end of a group of shading plates 1 closest to the laser emitter 5 and adjust backwards in sequence; first stick black tape on the U-shaped notch 2, and determine the position of the U-shaped notch 2 through which the laser beam passes by irradiating the laser beam on the black paper with the light spot 10, adjust one shading plate 1 and tear off a piece of black tape until all shading plates 1 are adjusted. The notch of the U-shaped notch 2 is downward, and the length of the U-shaped notch 2 is the safe deformation range; when adjusting the shading plate 1, the initial position A of the laser beam is at the lower center of the U-shaped notch 2; when the bracket 8 is in the safe deformation range, the laser beam moves upward along the U-shaped notch 2 to B, and when the deformation of the bracket 8 exceeds the safe range, the laser beam moves to C blocked by the U-shaped notch 2, and the shading plate 1 blocks the sound and light alarm. When adjusting the shading plate 1, adjust it according to the deformation of the bracket 8. The closer to the position with larger deflection in the middle of the bracket 8, the closer the initial position of the laser beam is to the notch position A of the U-shaped notch 2.

[0019] A shading device for monitoring a cast-in-place support used in the above method of the present invention is as follows: Figure 1 and Figure 2 As shown, the sunshade for monitoring the cast-in-place bracket includes a sunshade plate 1; a U-shaped notch 2 with the notch facing downward is provided on the sunshade plate 1; one side of the sunshade plate 1 is connected to a clamp 4 via a telescopic rod 3.

[0020] Example

[0021] This example Figure 1 and Figure 2As shown, a laser transmitter 5 is arranged on one side of the pier 9, and a laser receiver 6 is arranged on the pier 9 on the corresponding other side. The laser receiver 6 is connected to the sound and light alarm device. When the laser receiver 6 receives the laser signal during operation, it is normal, otherwise the sound and light alarm device generates an alarm signal. A light shield 7 is arranged near the top of the vertical pole of the bracket 8. The clamp 4 on the light shield 7 is connected to the vertical pole of the bracket 8. The light shield 7 is connected to the clamp 4 by a telescopic rod 3 to adjust the position. When installing, first install the laser transmitter 5 and the laser receiver 6, determine the laser route to ensure that the laser passes through the edge of the bracket 8. Turn on the laser transmitter 5, and install the light shielding plate 1 one by one along the laser passing route from one end of the laser transmitter 5. When installing, black paper can be covered on the light shielding plate 1 to determine the laser passing through the specified position. After the light shielding plate 1 is installed and fixed, the black paper is torn off to ensure that the laser passes through the U-shaped gap 2. When installing the light shielding plate 1, it should be adjusted according to the deformation of the bracket 8. The initial position of the light spot 10 at the position with larger deflection is close to point A. During construction, the light spot will move to B because the bracket 8 is compressed. As long as the bracket 8 does not exceed the preset deformation, the laser receiver 6 can always receive the laser signal, so there will be no alarm. However, if a rod is greatly sunken or offset, the shading plate 1 will block the laser. When the laser receiver 6 cannot receive the laser, it will issue an alarm to remind the operator to stop construction and check the reinforcement bracket, making the cast-in-place construction safer.

Claims

1. A cast-in-place support monitoring method, characterized in that: The method comprises the following steps: a laser transmitter is arranged on a pier at one end of a support, a laser receiver is arranged on a pier at the other end of the support, and the laser receiver is connected to an audible and visual alarm; and a group of adjustable shading devices are arranged on a laser beam path between the laser transmitter and the laser receiver, and the shading devices are connected to the support; when the support is deformed and settled beyond a safe range, the shading devices block the path of the laser beam, so that the laser receiver loses the laser signal and issues an alarm; The laser transmitter and the laser receiver are installed at a position close to one side of the support column to ensure that the path of the laser beam is within the adjustment range of the light shield; The shading device is fixed on the support pole by a clamp, and the position of the clamp on the support pole is adjusted to adjust the upper and lower positions of the shading plate; The clamp and the shading plate are connected by a telescopic rod; the left and right positions of the shading plate are adjusted by the telescopic rod connected to the clamp so that the laser beam passes through the U-shaped notch on the shading plate; When adjusting the shading plates, start from the end of a group of shading plates closest to the laser emitter and adjust them backwards in sequence; first, stick black tape on the U-shaped notch, and determine the position of the U-shaped notch through which the laser beam passes by irradiating the laser beam on the black paper. After adjusting one shading plate, tear off a piece of black tape until all shading plates are adjusted; The notch of the U-shaped notch is downward, and the length of the U-shaped hole is the safe deformation range; when the shading plate is adjusted, the initial position A of the laser beam is at the lower center of the U-shaped notch; when the bracket is in the safe deformation range, the laser beam moves upward along the U-shaped notch to position B; when the deformation of the bracket exceeds the safe range, the laser beam moves to position C blocked by the U-shaped notch, and the shading plate blocks the sound and light alarm; The adjustment is made according to the deformation of the bracket. The closer to the position where the deflection deformation is greater in the middle of the bracket, the closer the initial position of the laser beam is to the notch position of the U-shaped notch.

2. A sunshade for monitoring a cast-in-place support used in the method of claim 1, comprising a sunshade (1); characterized in that: A U-shaped notch (2) with the notch facing downward is provided on the shading plate (1); one side of the shading plate (1) is connected to a clamp (4) via a telescopic rod (3).

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