A measuring device for construction engineering management

Abstract

The present invention relates to the field of building measurement, and specifically to a measurement device for construction engineering management, comprising a cylinder, a guide rod, a film and a floating ring; the bottom of the cylinder is filled with liquid; the guide rod is vertically arranged in the cylinder; the floating ring is sleeved outside the guide rod; the film is cylindrical, sleeved outside the guide rod, and one end is fitted and fixed outside the guide rod, and the other end is fixed to the outer ring of the floating ring; a sealed air-filled chamber is defined between the inner and outer layers of the film, the liquid surface and the outer wall surface of the guide rod; the guide rod has a hollow chamber inside that is unidirectionally connected to the air-filled chamber, which is used to inflate the air-filled chamber. The floating ring and the guide rod are separated by the air-filled chamber, and there is no friction between the two. The guide rod will not hinder the rise or fall of the floating ring, thereby improving the sensitivity of the floating ring. When the floating ring moves with the change of the liquid level, the air-filled chamber provides a correction force for the floating ring through the film, so that the floating ring and the guide rod remain coaxial.

Description

Technical Field

[0001] The invention relates to the field of building measurement, and in particular to a measuring device for building engineering management. Background Art

[0002] The measurement work in construction project management runs through the entire life cycle of the project, from the benchmark measurement before construction to the precise layout during construction, and then to the monitoring and acceptance after construction. Measurement is crucial to ensure the quality of construction, construction accuracy and project progress. Among them, settlement and deformation monitoring is usually required during the construction process of the building and the use stage after completion, especially for large buildings, bridges, high-rise buildings, etc. Commonly used settlement monitoring devices include levels, settlement meters, etc. The magnetostatic level in the prior art uses the movement of the float on the guide rod along the axis to reflect the change of the liquid level, and then determine the settlement degree of the building. However, due to the friction between the float and the guide rod, when the water level rises less, if the float fails to overcome the friction between the guide rod, it will remain stationary, affecting the measurement results and not sensitive to the change of the water level. Summary of the invention

[0003] The invention provides a measuring device for construction engineering management, so as to solve the problem that the existing floating ball and the guide rod have friction, which leads to the insensitive change of the floating ball.

[0004] A measuring device for construction engineering management of the present invention adopts the following technical solution:

[0005] A measuring device for construction engineering management comprises a cylinder, a guide rod, a film and a floating ring; the bottom of the cylinder is filled with liquid; the guide rod is vertically arranged in the cylinder; the floating ring is sleeved outside the guide rod, and the inner diameter of the floating ring is larger than the outer diameter of the guide rod; the floating ring floats on the surface of the liquid in the cylinder; the film is cylindrical, sleeved outside the guide rod, and one end is fixed to the outside of the guide rod, and the other end extends downward from the upper end of the guide rod and the guide rod, and is fixed to the outer ring of the floating ring after bypassing the lower side of the floating ring, so that the film forms an inner and outer layer outside the guide rod; a sealed air-filled chamber is defined between the inner and outer layers of the film, the liquid surface and the outer wall surface of the guide rod; a hollow chamber is arranged inside the guide rod, and the hollow chamber is unidirectionally connected to the air-filled chamber and is connected to the outside world for inflating the air-filled chamber; and the air-filled chamber is connected to the inside of the liquid through an air guide tube.

[0006] Optionally, the hollow chamber is opened at the lower end of the guide rod, and a connecting port is opened on the guide rod. The connecting port is located below the fixed end of the film and the guide rod, and the connecting port connects the inflatable chamber and the hollow chamber.

[0007] Optionally, an air inlet pipe passing through the outside of the cylinder is fixed to the bottom of the guide rod, the air inlet pipe is connected to the bottom of the hollow chamber, and a one-way valve is installed in the hollow chamber to only allow gas to enter the hollow chamber from the air inlet pipe.

[0008] Optionally, the outer wall surface of the guide rod is a wavy curved surface around its circumference, and the inner layer of the film is in contact with the outer wall surface of the guide rod.

[0009] Optionally, a liquid inlet is provided at the bottom of the outer peripheral wall of the cylinder, and an air outlet is provided at the top.

[0010] Optionally, a support ring is connected to the lower end of the outer layer of the film, the support ring is located at the lower side of the floating ring and is fixedly connected to the floating ring, and the air guide tube is installed on the support ring.

[0011] Optionally, the floating ring is magnetic, and a sensor is provided on the top of the cylinder, and the sensor can monitor the change of the magnetic field and thus determine the movement amount of the floating ring.

[0012] Optionally, a support ring is arranged outside the guide rod, and in an initial state, the floating ring rests on the support ring.

[0013] Optionally, there are multiple air guide tubes, which are distributed at intervals around the support ring.

[0014] Optionally, the cylinder is a split and detachable structure.

[0015] The beneficial effects of the present invention are as follows: when the liquid level in the cylinder of the measuring device for construction engineering management of the present invention rises or falls, the floating ring rises or falls with the rise or fall of the liquid level. Since the floating ring and the guide rod are separated by the air-filled chamber and there is no direct contact, there is no friction between the two, and the rise or fall of the floating ring will not be hindered, thereby improving the sensitivity of the floating ring. When the floating ring moves with the change of the liquid level, the air-filled chamber provides a correction force for the floating ring through the film, so that the floating ring and the guide rod remain coaxial, reducing its disturbance in the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a measuring device for construction engineering management of the present invention;

[0018] Figure 2 A schematic cross-sectional view of an embodiment of a measuring device for construction engineering management according to the present invention;

[0019] Figure 3 It is a front view of the overall structure of an embodiment of a measuring device for construction engineering management of the present invention;

[0020] Figure 4 for Figure 3 Schematic diagram of the section along the AA direction;

[0021] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0022] Figure 6 for Figure 4 Schematic diagram of the cross section along the CC direction;

[0023] In the figure: 100, cylinder; 110, liquid inlet; 120, air outlet; 130, sensor; 200, guide rod; 210, air inlet pipe; 220, support platform; 230, one-way valve; 240, hollow chamber; 241, connecting port; 300, film; 310, air guide pipe; 320, support ring; 400, floating ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] An embodiment of a construction engineering management measuring device of the present invention is as follows Figures 1 to 6 As shown, it includes a cylinder 100 , a guide rod 200 , a film 300 and a floating ring 400 .

[0026] The bottom of the cylinder 100 is filled with liquid; specifically, a liquid inlet 110 is provided at the bottom of the outer peripheral wall of the cylinder 100 , and an air outlet 120 is provided at the top. When in use, a certain amount of liquid is introduced into the cylinder 100 through the liquid inlet 110 .

[0027] The guide rod 200 is vertically disposed in the cylinder 100 . Preferably, the guide rod 200 is coaxial with the cylinder 100 .

[0028] The floating ring 400 is sleeved outside the guide rod 200 , and the inner diameter of the floating ring 400 is larger than the outer diameter of the guide rod 200 ; the floating ring 400 is hollow inside and floats on the surface of the liquid in the cylinder 100 .

[0029] The film 300 is cylindrical and is sleeved outside the guide rod 200, and one end is fitted and fixed outside the guide rod 200, and the other end extends downward from the upper end of the fixed position with the guide rod 200, bypasses the lower side of the floating ring 400 and is fixed to the outer ring of the floating ring 400, so that the film 300 forms an inner and outer layer outside the guide rod 200. A sealed inflation chamber is defined between the inner and outer layers of the film 300, the liquid surface and the outer wall surface of the guide rod 200. There is a hollow chamber 240 inside the guide rod 200, and the hollow chamber 240 is unidirectionally connected to the inflation chamber and communicated with the outside world for inflating the inflation chamber, and after the inflation is completed, the hollow chamber 240 is always connected with the outside world. And the inflation chamber is connected to the liquid through the air guide tube 310.

[0030] When in use, the floating ring 400 floats on the surface of the liquid in the cylinder 100, and inflates the air into the inflation chamber through the hollow chamber 240, so that the inner and outer layers of the film 300 are separated. In order to prevent the outer layer of the film 300 from affecting the up and down movement of the floating ring 400, it is necessary to control the inflation volume of the inflation chamber to prevent the outer layer of the film 300 from exceeding the inner circle of the floating ring 400. The measuring device for construction engineering management of the present invention can be set in two, respectively installed on two building structures, and the liquid inlets 110 of the two cylinders 100 are connected, and the settlement or tilt of the building structure is monitored according to the change of the liquid level in the two cylinders 100. Or the measuring device for construction engineering management of the present invention is fixed on the building structure to be monitored, and the liquid inlet 110 of the cylinder 100 is connected with the external static liquid, and the settlement or tilt of the building structure is monitored according to the change of the liquid level in the cylinder 100 with the external static liquid as a reference. When the liquid level in the cylinder 100 rises or falls, the floating ring 400 rises or falls with the rise or fall of the liquid level. Since the floating ring 400 and the guide rod 200 are separated by the gas-filled chamber and there is no direct contact, there is no friction between the two, and the rise or fall of the floating ring 400 will not be hindered. And when the floating ring 400 moves with the change of the liquid level, the gas-filled chamber provides a correction force for the floating ring 400 through the film 300, so that the floating ring 400 and the guide rod 200 remain coaxial, reducing the disturbance in the cylinder 100. When the floating ring 400 moves upward with the rise of the liquid level, the gas in the gas-filled chamber is discharged into the liquid through the gas guide tube 310. When the floating ring 400 moves downward with the decrease of the liquid level, the gas-filled chamber is replenished with gas from the hollow chamber 240.

[0031] In this embodiment, the hollow chamber 240 is opened at the lower end of the guide rod 200, and a connecting port 241 is opened on the guide rod 200. The connecting port 241 is located below the end where the film 300 and the guide rod 200 are fixed, and the connecting port 241 connects the inflatable chamber and the hollow chamber 240. The liquid level in the cylinder 100 is not higher than the connecting port 241 to prevent the liquid from flowing back into the hollow chamber 240. In some other embodiments, a hose can also be provided at the connecting port 241 to guide the gas to flow out from the upper ends of the inner and outer layers of the film 300, further preventing the liquid from flowing back from the connecting port 241.

[0032] In this embodiment, an air inlet pipe 210 passing through the outside of the cylinder 100 is fixed to the bottom of the guide rod 200, the air inlet pipe 210 is connected to the bottom of the hollow chamber 240, and a one-way valve 230 is installed in the hollow chamber 240 to only allow gas to enter the hollow chamber 240 from the air inlet pipe 210. In some other embodiments, the one-way valve 230 can be set at the communication port 241.

[0033] In this embodiment, the outer wall surface of the guide rod 200 is a wavy curved surface around its circumference, and the inner layer of the film 300 is in contact with the outer wall surface of the guide rod 200. Since the inner and outer layers of the film 300 have the same diameter, this arrangement can prevent the film 300 from generating wrinkles on the outer wall of the guide rod 200.

[0034] In this embodiment, the lower end of the outer layer of the film 300 is connected to a support ring 320, which is located at the lower side of the floating ring 400 and is fixedly connected to the floating ring 400. The air guide tube 310 is installed on the support ring 320, and there are multiple air guide tubes 310, which are circumferentially spaced around the support ring 320. Preferably, the support ring 320 is made of the same material as the floating ring 400 and is in contact with the lower surface of the floating ring 400.

[0035] In this embodiment, the floating ring 400 is magnetic, and a sensor 130 is provided on the top of the cylinder 100. The sensor 130 can monitor the change of the magnetic field and determine the movement of the floating ring 400, thereby determining the change of the liquid level in the cylinder 100, thereby determining the inclination or settlement of the building structure where the measuring device for construction engineering management is located. Among them, using the sensor 130 to monitor the change of the magnetic field when the floating ring 400 moves to determine its movement belongs to the prior art, and its principle will not be repeated.

[0036] In this embodiment, a support platform 220 is disposed outside the guide rod 200 , and in an initial state, the floating ring 400 rests on the support platform 220 .

[0037] In this embodiment, the barrel 100 is a split and detachable structure.

[0038] When a measuring device for construction project management of the present invention is used, the cylinder 100 is installed on the building structure to be detected, and liquid is introduced into the cylinder 100 through the liquid inlet 110, and the liquid level is higher than the support platform 220, so that the floating ring 400 floats on the surface of the liquid. The liquid inlet 110 is connected to the liquid inlet 110 of the cylinder 100 of another measuring device for construction project management, or is connected to an external static liquid. After that, air is inflated into the inflation chamber through the hollow chamber 240 to separate the inner and outer layers of the film 300. In order to prevent the outer layer of the film 300 from affecting the up and down movement of the floating ring 400, it is necessary to control the inflation amount of the inflation chamber to prevent the outer layer of the film 300 from exceeding the inner circle of the floating ring 400. When the building structure sinks, the cylinder 100 moves down with the building structure, and the external liquid enters the cylinder 100 from the liquid inlet 110. The liquid level in the cylinder 100 rises, and the floating ring 400 moves up with the rise of the liquid level. Since the floating ring 400 and the guide rod 200 are separated by the air-filled chamber, there is no direct contact, and there is no friction between the two, which will not hinder the rise or fall of the floating ring 400. When the floating ring 400 moves with the change of the liquid level, the air-filled chamber provides a correction force for the floating ring 400 through the film 300, so that the floating ring 400 and the guide rod 200 remain coaxial, reducing its disturbance in the cylinder 100. When the floating ring 400 moves upward with the rise of the liquid level, the gas in the air-filled chamber is discharged into the liquid through the air guide pipe 310. Since the floating ring 400 is a magnetic ring, the magnetic field sensed by the sensor 130 changes when it moves upward, and the sensor 130 determines the movement amount of the floating ring 400 and then determines the change amount of the liquid level in the cylinder 100, based on which the settlement amount of the building structure can be calculated.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A measuring device for construction engineering management, characterized in that: It includes a cylinder, a guide rod, a membrane and a floating ring; The bottom of the cylinder is filled with liquid; The guide rod is vertically arranged in the cylinder; The floating ring is sleeved outside the guide rod, and the inner diameter of the floating ring is larger than the outer diameter of the guide rod; the floating ring floats on the surface of the liquid in the cylinder; The film is cylindrical and is sleeved outside the guide rod, and one end is fitted and fixed outside the guide rod, and the other end extends downward from the upper end of the position where it is fixed to the guide rod, and is fixed to the outer ring of the floating ring after bypassing the lower side of the floating ring, so that the film forms an inner and outer layer outside the guide rod; a sealed air-filled chamber is defined between the inner and outer layers of the film, the liquid surface and the outer wall surface of the guide rod; a hollow chamber is provided inside the guide rod, and the hollow chamber is unidirectionally connected to the air-filled chamber and is connected to the outside world for inflating the air-filled chamber; and the air-filled chamber is connected to the inside of the liquid through an air guide tube; The hollow chamber is opened at the lower end of the guide rod, and a communication port is opened on the guide rod. The communication port is located below the fixed end of the film and the guide rod, and the communication port connects the inflatable chamber and the hollow chamber; An air inlet pipe passing through the outside of the cylinder is fixed at the bottom of the guide rod. The air inlet pipe is communicated with the bottom of the hollow chamber, and a one-way valve is installed in the hollow chamber to only allow gas to enter the hollow chamber from the air inlet pipe.

2. A construction engineering management measuring device according to claim 1, characterized in that: The outer wall surface of the guide rod is a wavy curved surface around the circumference thereof, and the inner layer of the film is in contact with the outer wall surface of the guide rod.

3. A construction engineering management measuring device according to claim 1, characterized in that: A liquid inlet is provided at the bottom of the outer peripheral wall of the cylinder, and an air outlet is provided at the top.

4. A construction engineering management measuring device according to claim 1, characterized in that: The lower end of the outer layer of the film is connected with a support ring, the support ring is located at the lower side of the floating ring and is fixedly connected to the floating ring, and the air guide pipe is installed on the support ring.

5. A construction engineering management measuring device according to claim 1, characterized in that: The floating ring is magnetic, and a sensor is installed on the top of the cylinder. The sensor can monitor the change of magnetic field and determine the movement of the floating ring.

6. A construction engineering management measuring device according to claim 1, characterized in that: A support platform is arranged outside the guide rod, and in an initial state, the floating ring is supported on the support platform.

7. A construction engineering management measuring device according to claim 4, characterized in that: There are multiple air guide tubes, which are distributed at intervals around the support ring.

8. A construction engineering management measuring device according to claim 1, characterized in that: The cylinder body is a split and detachable structure.

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