CN103234523B - Precast pile inclination real-time monitoring and alarm apparatus - Google Patents

Abstract

The invention relates to a real-time monitoring and alarm device for prefabricated pile inclination, which includes a chassis and a hook. The upper part of the chassis is fixed with a connecting rod, and the lower part is provided with a central shaft disk. The special-shaped rod connects the central shaft disk and the connecting rod; Rotate, the special-shaped rod binds a heavy hammer through the weight wire, and the mercury tank is fixed on the special-shaped rod; the electrical box is fixed above the mercury tank. When the prefabricated pile is tilted, the weight moves to the vertical plane of the prefabricated pile under the action of gravity, driving the mercury tank fixed on the special-shaped rod to move to the vertical plane; when the tilt angle of the mercury tank reaches or exceeds the designed ɑ When cornering, the long and short copper wires in the mercury tank are immersed in the mercury, the alarm circuit is connected, and the alarm prompts that there is a tilting state; the flashing light flashes, and the direction of the prefabricated pile can be known by observing the position of the flashing light. The device has a simple structure, is installed on the surface of the prefabricated pile to facilitate engineering construction, and can monitor and guide the construction of the prefabricated pile in real time. The device can be used repeatedly, saving construction cost.

Description

A prefabricated pile tilt real-time monitoring and alarm device

technical field

The invention relates to a real-time monitoring and alarm device for prefabricated pile inclination.

Background technique

Pile foundation is an ancient foundation type. Pile technology has experienced thousands of years of development. Now, both pile foundation materials and pile types, or pile machinery and construction methods have undergone tremendous development, and a modern foundation engineering system has been formed. In some cases, the use of pile foundations can greatly reduce the workload on the construction site and the consumption of materials. With the continuous promotion and application of pile foundations, the problems of prefabricated piles in the construction process have gradually become prominent. Due to the uneven site, the piles are not vertical when the piles are stabilized, etc., the foundation piles will be inclined during the sinking process. When the inclination angle of the foundation pile reaches a certain angle, the foundation pile cannot be used normally, causing huge economic losses. Before the present invention, there were reports related to inclination measuring devices, such as the Chinese patent "real-time monitoring and early warning system for foundation pile inclination" published in 2012, which used inclinometer sensors and gyroscope sensors to be installed on foundation piles and driven into them together with foundation piles. Underground, lead out through the wire, and connect to the signal collector, so as to monitor the inclination of the foundation pile in real time. However, the setting of the wires will cause inconvenience to the foundation pile construction, and installing the inclinometer sensor and the gyroscope sensor on the foundation pile and driving them into the soil together will undoubtedly increase the cost of the foundation pile construction. A waste of resources. And because the monitoring and early warning system still has problems such as non-reusability, high real-time monitoring cost, and inconvenient monitoring, there is an urgent need to develop a convenient, reusable, and low-cost prefabricated pile tilt real-time monitoring and alarm device.

Contents of the invention

The object of the present invention is to solve the problems in the prior art, and provide a prefabricated pile tilt real-time monitoring and alarm device which is simple in structure, easy to use, reusable, and can save construction costs.

In order to achieve the above object, the present invention adopts the technical scheme as follows: provide a prefabricated pile tilt real-time monitoring and alarm device, including a cabinet, a hook and an alarm mechanism, the cabinet is a rectangular box, and the upper part of the cabinet is provided with a hook and a Loudspeaker; the upper part of the case is fixed with a connecting rod, the bottom of the connecting rod has a spherical groove, and the lower part of the case is provided with a central shaft plate, and the special-shaped rod connects the central shaft plate and the connecting rod;

The central shaft disc is a combination structure of a round rod and a disc, the top of the round rod has a tapered groove, and the central shaft disc is fixed on the bottom of the chassis by screws;

The upper end of the special-shaped rod is hemispherical, and the lower end is inverted conical. The hemispherical end of the special-shaped rod is installed in the spherical groove at the bottom of the connecting rod. In the shaped groove; the lower part of the special-shaped rod is bound with a heavy hammer through the weight line, and the mercury tank is fixed on the special-shaped rod through the connecting rod;

The mercury tank is filled with mercury, and there are 2 small holes on the top of the mercury tank, and the rest are sealed; an electrical box is fixed above the mercury tank;

The alarm mechanism is provided with an electrical box, a loudspeaker and an alarm circuit. In the alarm circuit, a battery, a flashing light, an alarm are connected in series through wires, and special wires composed of long copper wires and short copper wires are used. The long copper wires and one end of the short copper wire passes through the 2 small holes left on the top of the mercury tank, and stretches into the mercury tank, the mercury liquid level is just touching the end of the long copper wire inserted in the mercury tank; the alarm passes through The wires are connected to the loudspeaker.

The cabinet is a transparent rectangular box with a top cover.

Mercury is housed in the mercury tank, and the liquid level of the mercury is just touching the end of the long copper wire inserted in the mercury tank.

When the mercury tank is perpendicular to the horizontal plane, the included angle between the long copper wire and the short copper wire end extending into the mercury tank and the horizontal plane is an angle α, and when the inclination angle of the mercury tank reaches or exceeds the angle α, The long copper wire and the short copper wire in the mercury tank are immersed in the mercury together, so that the long copper wire and the short copper wire are short-circuited, the alarm circuit is connected, the alarm sounds, and the alarm sound is amplified by the loudspeaker to indicate the tilting state , the flashing light starts to flash, and the direction in which the prefabricated pile is inclined can be obtained by observing the position of the flashing light.

Compared with the prior art, a prefabricated pile tilt real-time monitoring and alarm device of the present invention has the following advantages:

1) The monitoring and alarm device of the present invention is installed on the outer surface of the upper part of the prefabricated pile, which is convenient for engineering construction.

2) The monitoring and alarm device of the present invention is simple in structure, easy to manufacture, and low in cost.

3) Hanging the monitoring and alarm device of the present invention on the prefabricated pile can obtain the warning of the inclination of the prefabricated pile through the alarm sound, and can also obtain the inclining direction of the prefabricated pile by observing the orientation of the flashing light, and realize the inclination state of the prefabricated pile construction Real-time dynamic monitoring can guide the construction of prefabricated piles. After the construction of the prefabricated pile, the device is removed before the prefabricated pile is completely driven into the soil, and the device can be reused, which greatly saves the construction cost.

Description of drawings

Fig. 1 is a structural schematic diagram of the real-time monitoring and alarming device for prefabricated pile inclination of the present invention.

Fig. 2 is a schematic bottom view of the connecting rod in the device of the present invention.

Fig. 3 is a schematic top view of the structure of the central shaft disk in the device of the present invention.

Fig. 4 is a structural schematic diagram of the special-shaped rod in the device of the present invention.

Fig. 5 is a structural schematic diagram of an electrical box and a mercury tank in the device of the present invention.

Fig. 6 is a schematic diagram of the circuit connection of the alarm mechanism in the device of the present invention.

Fig. 7 is a schematic diagram of the state of hanging the device of the present invention on the notch of the prefabricated pile.

In the above figure: 1-chassis, 2-hook, 3-speaker, 4-connecting rod, 5-electric box, 6-mercury tank, 7-shaped rod, 8-hammer line, 9-hammer, 10 -central shaft disk, 11-mercury, 12-long copper wire, 13-short copper wire, 14 flashing light, 15-battery, 16-alarm, 17-prefabricated pile, 18-notch, 41-spherical groove, 101-circular rod, 102-tapered groove, 103-disk.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment 1: a kind of prefabricated pile inclination real-time monitoring and warning device of the present invention, its structure as shown in Figure 1, comprises cabinet 1, hook 2 and alarm mechanism, described cabinet 1 is a transparent rectangular plastic casing, A hook 2 and a loudspeaker 3 are arranged on the outer upper part of the box body; the top cover of the plastic box 1 can be opened to facilitate the replacement of the battery 15; the upper part of the box 1 is fixed with a connecting rod 4, see Figure 2, the bottom of the connecting rod 4 has a spherical groove 41. The lower part of the cabinet 1 is provided with a central shaft disk 10 , and the special-shaped rod 7 connects the central shaft disk 10 and the connecting rod 4 .

See Figure 3. The central shaft disk 10 is a combination structure of a round rod 101 and a disc 103, the top of the round rod 101 has a tapered groove 102, and the central shaft disk 10 is fixed on the bottom of the cabinet 1 by screws.

See Figure 4. The upper end of the special-shaped rod 7 is hemispherical, and the lower end is inverted conical. In the tapered groove 102 at the top of the round rod 101; the lower end of the special-shaped rod 7 is bound with a weight 9 through the weight line 8, and the special-shaped rod 7 is fixed with a mercury tank 6 through a connecting rod.

See Figure 5. Mercury 11 is housed in the described mercury tank 6, and there are 2 small holes on the top of the mercury tank 6, and the rest are sealed; an electrical appliance box 5 is fixed above the mercury tank 6.

See Figure 6. Described alarm mechanism is provided with electrical box 5, loudspeaker 3 and alarm circuit, is connected with battery 15, flashing lamp 14, alarm 16 by wire series in the alarm circuit, and adopts long copper wire 12 and short copper wire 13 to form One end of the long copper wire 12 and the short copper wire 13 passes through the 2 small holes left on the top of the mercury tank 6, and then stretches into the mercury tank. At the end of the wire, the long copper wire 12 and the short copper wire 13 are respectively fixed and sealed. Described alarm 16 is connected with loudspeaker 3 by wire.

Embodiment 2: The working process of a prefabricated pile tilt real-time monitoring and alarm device of the present invention:

Step 1: Set a notch 18 on the upper part of the prefabricated pile 17, and hang the device provided by Embodiment 1 of the present invention in the notch 18 through the hook 2, as shown in FIG. 7 .

The second step: drive into the prefabricated pile 17, in the process of driving the prefabricated pile, after the prefabricated pile is inclined, the weight 9 moves towards the vertical plane indicated by the inclination of the prefabricated pile 17 under the action of gravity; It is a hemisphere, inserted into the spherical groove 41 at the bottom of the connecting rod 4, and the bottom end of the inverted cone of the special-shaped rod 7 is inserted into the tapered groove 102 of the central shaft disk 10. This structure enables the special-shaped rod 7 to wind around its own The central axis rotates freely, and the rotation of the special-shaped rod 7 drives the mercury tank 6, the electrical box 5 and the flashing light 14 fixed on the special-shaped rod 7 to also move to the vertical plane where the prefabricated pile is inclined. At this time, the mercury surface in the mercury tank 6 The included angle that is inserted in the long copper wire 12, the short copper wire 13 ends in the mercury tank 6 changes, and the included angle at this moment is actually the inclination angle of the prefabricated pile. And when the angle of inclination of the prefabricated pile reaches the designed ɑ or greater than ɑ, the ends of the long copper wire 12 and the short copper wire 13 in the mercury tank 6 will all be immersed in the mercury 11, and the long copper wires that play the role of wires in the alarm circuit of the alarm mechanism Copper wire 12 and short copper wire 13 are short-circuited by mercury 11, so that the alarm circuit forms a closed loop, alarm 16 starts to alarm, and flashing light 13 starts to flash, and the alarm sound sent by alarm 16 passes through the expansion device installed on the outer wall of the cabinet 1. The sounder 3 is amplified to ensure that the staff can hear, and the staff obtains the inclined direction of the prefabricated pile by observing the position of the flashing light.

Step 3: after prefabricated pile 17 is taken to rectify the deviation, the short copper wire 13 will break away from the mercury surface, the alarm circuit will be disconnected, the alarm will be removed, and the flashing light 13 will be extinguished. Continue to drive into the construction of the prefabricated pile 17, and before the prefabricated pile 17 is driven into the adjacent contact soil, the monitoring and alarm device of the present invention is taken off for the monitoring of the next prefabricated pile construction process.

The prefabricated pile inclination real-time monitoring and alarm device of the present invention has simple structure, convenient manufacture and low cost, is installed on the outer surface of the prefabricated pile, is convenient for engineering construction, can carry out dynamic observation along with the construction process, and plays a guiding role in the construction of the pile foundation. The device of the invention can be used repeatedly, saves construction cost, and has broad prospects for popularization and application.

Claims (3)

1. prefabricated pile inclination Real-Time Monitoring and a warning device, comprise cabinet, and hook and alarm mechanism, is characterized in that: described cabinet is rectangular box, and the outer top of cabinet is provided with hook and loudspeaker; Cabinet internal upper part is fixed with connecting link, and spheroidal groove is arranged at the bottom of connecting link, and in cabinet, bottom is provided with center reel, and special-shaped bar connects described center reel and connecting link;

Described center reel is the structure of a round bar and disk combination, and there is cone tank on the top of round bar, and center reel is fixed by screws in cabinet bottom;

Described special-shaped bar upper end is semisphere, and lower end is turbination, and the hemispherical end of special-shaped bar is arranged in the spheroidal groove of connecting link bottom, and the turbination end of special-shaped bar is inserted in the cone tank on round bar top of center reel; Abnormity bar bottom, by a weight of weight line binding, is fixed with mercury tank by connecting rod on special-shaped bar;

In described mercury tank, mercury is housed, 2 apertures, all the other sealings are left in mercury tank top; Mercury tank top is fixed with electrical appliance kit;

Described alarm mechanism is provided with electrical appliance kit, loudspeaker and warning circuit, in warning circuit, by wire, be serially connected with battery, flashing lamp, alarm, and the special wire that adopts long copper wire and short copper wire to form, 2 apertures that one end of long copper wire and short copper wire is left through mercury tank top, and put in mercury tank, mercury liquid level is for just touching the end that is inserted in long copper wire in mercury tank; Described alarm is connected with loudspeaker by wire.

2. a kind of prefabricated pile inclination Real-Time Monitoring according to claim 1 and warning device, is characterized in that: described cabinet is one and is provided with top cover, transparent rectangular box.

3. a kind of prefabricated pile inclination Real-Time Monitoring according to claim 1 and warning device, it is characterized in that: described mercury tank is during perpendicular to surface level, putting in the line of long copper wire in mercury tank and short copper wire end and angle that surface level forms is ɑ angle, when mercury tank angle of inclination reaches or is greater than ɑ angle, long copper wire and short copper wire in mercury tank together immerse in mercury, make long copper wire and short copper wire short circuit, warning circuit is connected, alarm sends chimes of doom, chimes of doom amplifies to point out by loudspeaker and occurs heeling condition, flashing lamp starts flicker, the direction that show that by observing the orientation of flashing lamp prefabricated pile tilts.