Wellhead protection and water level monitoring device for dewatering well

Abstract

The utility model belongs to the field of municipal engineering, and particularly relates to a dewatering well mouth protection and water level monitoring device which comprises a balance weight base, a winder is installed on the lower surface of the balance weight base, a water level monitoring sensor is fixed to the lower end of the winder, and a water level audible and visual alarm is installed on the upper surface of the balance weight base. The four corners of the upper surface of the counterweight base are rotationally connected with telescopic fixing rods through fixing rotating shafts, universal hinges are installed on the lower portions of the telescopic fixing rods and connected with fixing supporting rods, the ends of the fixing supporting rods are hinged together, and bolt bases and bolts are arranged on the fixing supporting rods. A plurality of warning reflective strips are arranged between the telescopic fixing rods from top to bottom. The monitoring device is convenient to operate and rapid in construction, has a protection effect, can find water level abnormity of the precipitation well in a short time, has a warning effect, and ensures safe production operation of construction.

Description

Technical Field

[0001] The utility model belongs to the field of municipal engineering, and particularly relates to a wellhead protection and water level monitoring device for a precipitation well. Background Art

[0002] In the current municipal engineering construction process, construction dewatering is common, and among the construction dewatering methods, the use of pipe well dewatering is the most widely used. The dewatering effect affects the foundation pit construction work. The water level of the dewatering well needs to be monitored during construction. Traditional monitoring uses manual measurement, which is inefficient and has a long response time. In addition, there is often a risk of people falling into the dewatering well during use. The usual solution is to support the steel frame pipe around the dewatering well or install a temporary cover. Both of the above methods have low construction efficiency, and the supporting steel frame pipe occupies a large construction area, while the installation of a temporary cover has a poor warning effect. Summary of the invention

[0003] The problem to be solved by the present invention is to overcome the shortcomings of the background technology and provide a wellhead protection and water level monitoring device for a precipitation well.

[0004] The present invention is achieved through the following technical solutions:

[0005] A wellhead protection and water level monitoring device for a dewatering well comprises a counterweight base, a wire winder is installed on the lower surface of the counterweight base, a water level monitoring sensor is fixed at the lower end of the wire rope on the wire winder, a water level sound and light alarm is installed in the middle of the upper surface of the counterweight base, the water level sound and light alarm can receive the water level signal of the water level monitoring sensor, when the water level signal exceeds the set water level height value, the water level sound and light alarm alarms; fixed rotating shafts are symmetrically arranged at the four corners of the upper surface of the counterweight base, a retractable fixed rod is rotatably connected on the fixed rotating shaft, a universal hinge is installed at the lower part of the retractable fixed rod, the universal hinge is outwardly connected to a fixed support rod, two fixed support rod ends of adjacent retractable fixed rods are hinged together, latch seats are fixed on the fixed support rods, and latches are arranged between adjacent latch seats; a plurality of circles of warning reflective strips are arranged from top to bottom between the retractable fixed rods.

[0006] Preferably, the cable winder is an electric cable winder.

[0007] Preferably, the universal hinge is provided with a fixing screw.

[0008] The monitoring device of the present invention has a simple structure. Compared with traditional wellhead support and manual monitoring, the monitoring device of the present invention is more convenient to operate and faster to construct. It can timely detect abnormal water levels in precipitation wells and has a warning effect, which is convenient for construction workers to respond in time and ensure safe production of construction. In addition, after the device is installed, it can also prevent people from falling, with high protection construction efficiency and a small construction area. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the device of this embodiment when it is not opened;

[0010] Figure 2 This is a schematic diagram of the structure of the device of this embodiment after the extendable fixed rod is extended;

[0011] Figure 3 This is a schematic diagram of the side view of the device in use state of this embodiment;

[0012] Figure 4 This is a schematic diagram of the top view of the structure of the device of this embodiment in use.

[0013] In the figure, 1. water level monitoring sensor, 2. cable winder, 3. counterweight base, 4. fixed rotating shaft, 5. water level sound and light alarm, 6. universal hinge, 7. fixed support rod, 8. latch seat, 9. retractable fixed rod, 10. warning reflective strip, 11. latch. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0015] The wellhead protection and water level monitoring device of the precipitation well in this embodiment includes a counterweight base 3. The weight of the counterweight base 3 cannot be too light to prevent the entire device from tilting. The counterweight base 3 in this embodiment is a square block, which can be a solid square block with a heavier weight or a hollow square block. A counterweight block can be placed inside for weight adjustment.

[0016] A wire winder 2 is installed on the lower surface of the counterweight base 3. A wire rope is wound on the wire winder 2. The lower end of the wire rope on the wire winder 2 is fixed to a water level monitoring sensor 1. The water level monitoring sensor 1 is used to monitor the water level in the precipitation well. The wire winder 2 has a locking function. The wire winder 2 can be a manual wire winder or an electric wire winder. In this embodiment, the wire winder 2 is preferably an electric wire winder. The wire rope is retracted and released by rotating the wire winder 2 to adjust the height of the water level monitoring sensor 1. A water level sound and light alarm 5 is installed in the middle of the upper surface of the counterweight base 3. The water level sound and light alarm 5 can receive the water level signal of the water level monitoring sensor 1. When the water level signal exceeds the set water level height value, the water level sound and light alarm 5 alarms.

[0017] The four corners of the upper surface of the counterweight base 3 are symmetrically provided with fixed shafts 4, and the fixed shafts 4 are rotatably connected to the telescopic fixed rods 9, and the telescopic fixed rods 9 can rotate around the fixed shafts 4. A universal hinge 6 is installed at the lower part of the telescopic fixed rod 9, that is, a universal hinge 6 is installed on the outer surface of the bottom non-telescopic rod of the telescopic fixed rod 9. The universal hinge 6 is a common device in the prior art and will not be described here. The universal hinge 6 is connected to the fixed struts 7 outwardly, and the ends of the two fixed struts 7 of the adjacent telescopic fixed rods 9 are hinged together. A latch seat 8 is fixed on the two hinged fixed struts 7, and a latch 11 is provided between the latch seats 8. When the two fixed struts 7 are in a horizontal state, the latch 11 passes through the two latch seats 8, so that the two hinged fixed struts 7 can no longer rotate. When the fixed struts 7 are all in a horizontal state, several circles of warning reflective strips 10 are fixed between the telescopic fixed rods 9 from top to bottom. The warning reflective strips 10 are fixed on the telescopic fixed rods 9, surrounding the device in a circle, and several more are set from top to bottom. The warning reflective strips 10 have a warning effect and can prevent people from approaching, thereby having a protective effect.

[0018] In order to ensure that the device structure is more stable, a universal hinge 6 with a fixing screw may be preferably provided. The fixing screw mentioned here means that when the fixing screw is tightened, the universal hinge 6 cannot rotate, and when the fixing screw is loosened, it can rotate freely. The universal hinge 6 with a fixing screw is an existing device and will not be described here.

[0019] When in use, first pull the retractable fixing rods 9 upward to reach their maximum length and lock the length, then rotate the retractable fixing rods 9 outward around the fixed rotating shaft 4 to open it until the fixed support rod 7 is completely straightened, and then insert the pins 11 into the two pin seats 8 to lock the fixed support rod 7 and prevent it from rotating. Then, according to the actual needs on site, determine the water level warning height, that is, set the alarm water level height value, adjust the winder 2 to make the water level monitoring sensor 1 reach the required height, and finally put the entire device into the precipitation well, use the retractable fixing rod 9 to clamp the wellhead of the precipitation well to prevent the device from falling, and fix several circles of warning light strips around the device to ensure the warning effect and protection effect.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wellhead protection and water level monitoring device for a precipitation well, characterized in that: The invention comprises a counterweight base (3), a wire winder (2) is installed on the lower surface of the counterweight base (3), a water level monitoring sensor (1) is fixed at the lower end of the wire rope on the wire winder (2), and a water level sound and light alarm (5) is installed in the middle of the upper surface of the counterweight base (3). The water level sound and light alarm (5) can receive a water level signal from the water level monitoring sensor (1). When the water level signal exceeds a set water level height value, the water level sound and light alarm (5) alarms. The upper surface of the counterweight base (3) is symmetrically provided with fixed rotating shafts at four corners. (4), the fixed shaft (4) is rotatably connected to the telescopic fixed rod (9), a universal hinge (6) is installed at the lower part of the telescopic fixed rod (9), the universal hinge (6) is outwardly connected to the fixed support rod (7), the ends of the two fixed support rods (7) of the adjacent telescopic fixed rods (9) are hinged together, the fixed support rods (7) are fixed with latch seats (8), and latches (11) are arranged between adjacent latch seats (8); a plurality of circles of warning reflective strips (10) are arranged from top to bottom between the telescopic fixed rods (9).

2. The wellhead protection and water level monitoring device for a precipitation well according to claim 1 is characterized in that: The wire winder (2) is an electric wire winder.

3. The wellhead protection and water level monitoring device for a precipitation well according to claim 1 is characterized in that: The universal hinge (6) is provided with a fixing screw.

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