阅读说明：本技术 一种利用磁铁磁性检测桥梁水下构件的设备 (Device for detecting underwater bridge member by using magnetism of magnet ) 是由 潘伟东 于 2019-11-19 设计创作，主要内容包括：本发明涉及桥梁水下构件检测技术领域,一种利用磁铁磁性检测桥梁水下构件的设备,包括环形板,所述环形板的上部铰接有联动机构,所述环形板的下部通过连杆活动连接有检测机构,所述环形板的内部固定连接有电磁铁,所述检测机构包括支撑架,支撑架的内部固定连接有转轴,转轴的内部固定连接有排水通道,所述转轴的表面套接有轴套,通过联动机构使环形板夹持在水泥柱表面,环形板移动使检测机构内的钻头贴近水泥柱表面,钻头能够深入水泥柱内部,进一步检测水泥柱内部的状况,且在电磁铁的夹持下,当钻头停止工作时,开启检测板,使其能够稳定工作并进行检测,从而达到将物理技术与仪器结合在一起检测混凝土强度的目的。(The invention relates to the technical field of bridge underwater component detection, in particular to a device for magnetically detecting a bridge underwater component by utilizing a magnet, which comprises an annular plate, wherein the upper part of the annular plate is hinged with a linkage mechanism, the lower part of the annular plate is movably connected with a detection mechanism through a connecting rod, the interior of the annular plate is fixedly connected with an electromagnet, the detection mechanism comprises a support frame, the interior of the support frame is fixedly connected with a rotating shaft, the interior of the rotating shaft is fixedly connected with a drainage channel, the surface of the rotating shaft is sleeved with a shaft sleeve, the annular plate is clamped on the surface of a cement column through the linkage mechanism, a drill bit in the detection mechanism is close to the surface of the cement column through the movement of the annular plate, the drill bit can go deep into the cement column to further detect the internal condition of the cement column, and under the clamping of the electromagnet, therefore, the aim of detecting the concrete strength by combining a physical technology and an instrument is fulfilled.)

1. An apparatus for magnetically inspecting an underwater member of a bridge by using a magnet, comprising a ring plate (1), characterized in that: the upper portion of annular plate (1) articulates there is link gear (2), there is detection mechanism (4) lower part of annular plate (1) through connecting rod (3) swing joint, the inside fixedly connected with electro-magnet (5) of annular plate (1).

Detection mechanism (4) are including support frame (6), inside fixedly connected with pivot (7) of support frame (6), inside fixedly connected with drainage channel (8) of pivot (7), axle sleeve (9) have been cup jointed on the surface of pivot (7), and the fixed surface of axle sleeve (9) is connected with drill bit (10), the inside of support frame (6) and the top swing joint that is located axle sleeve (9) have stopper (11), the lower part fixedly connected with pick-up plate (12) of support frame (6).

2. The apparatus for magnetically inspecting underwater components of bridges with magnets as claimed in claim 1, wherein: link gear (2) include casing (13), and the inside elastic connection of casing (13) has spring (14), the one end fixedly connected with push rod (15) of casing (13) are kept away from in spring (14), the one end swing joint that spring (14) were kept away from in push rod (15) has bracing piece (16).

3. The apparatus for magnetically inspecting underwater components of bridges with magnets as claimed in claim 2, wherein: one end of the support rod (16) far away from the push rod (15) is hinged with the annular plate (1).

4. The apparatus for magnetically inspecting underwater components of bridges with magnets as claimed in claim 1, wherein: the number of the annular plates (1) is two, and the annular plates are symmetrically arranged on two sides of the supporting rod (16).

5. The apparatus for magnetically inspecting underwater components of bridges with magnets as claimed in claim 2, wherein: the elasticity of the spring (14) is smaller than the magnetic force when the electromagnet (5) is adsorbed with the steel bar.

6. The apparatus for magnetically inspecting underwater components of bridges with magnets as claimed in claim 1, wherein: the number of the detection mechanisms (4) is two, and the detection mechanisms are symmetrically arranged at the lower part of the annular plate (1).

7. The apparatus for magnetically inspecting underwater components of bridges with magnets as claimed in claim 1, wherein: the shaft sleeve (9) is movably connected with the rotating shaft (7) through a clutch.

8. The apparatus for magnetically inspecting underwater components of bridges with magnets as claimed in claim 1, wherein: the height of the limiting block (11) in the support frame (6) is smaller than the length of the drill bit (10).

9. The apparatus for magnetically inspecting underwater components of bridges with magnets as claimed in claim 1, wherein: the electromagnets (5) are annular and are uniformly distributed in the annular plate (1).

Technical Field

The invention relates to the technical field of bridge underwater member detection, in particular to a device for detecting a bridge underwater member by utilizing the magnetism of a magnet.

Background

The bridge is a road built on both sides of a river or across gullies and canyons, people on both sides can conveniently come and go, the traffic efficiency is improved, and because the landforms of China are rich and the demand of the bridge is large, the bridge is built in China with high quality and high strength, and plays an important role in bridge building in the world.

At present, bridges on the market are supported on rivers through steel reinforced concrete columns, so that the detection of underwater bridge members is crucial, and the main detection contents are as follows: the method is characterized in that diseases such as concrete falling, cracks, exposed ribs, cavities, mechanical damage and the like of the underwater pile foundation are explored, the conventional bridge underwater structure detection can adopt modes such as diver detection, underwater video detection and the like, underwater detection in muddy water can adopt technical means such as sonar detection equipment navigation scanning and sonar fixed-point scanning, but the detection methods have the following objective defects: 1. the diver lacks a fixed supporting structure in the detection of probing, and the detection efficiency is low and the working strength is high; 2. the water depth of the Yangtze river basin is fast, and the detection risk of a diver is high; 3. the navigation area is near the bridge pier, so that the detection ship cannot stay for a long time, besides, some special underwater detection devices often rely on detection instruments to detect the component, the instruments are unstable due to the fact that the water flow speed is too high, shaking is generated during detection to influence the working effect of the detection instruments, or the normal work of the equipment is influenced due to the complex underwater environment, and therefore the equipment for detecting the bridge underwater component by utilizing the magnetism of the magnet is produced.

Disclosure of Invention

In order to realize the purpose of detecting the exposed reinforcement and the concrete strength of the bridge underwater component by using the method of combining the physical principle and the instrument, the invention provides the following technical scheme: the utility model provides an utilize magnet magnetism to detect equipment of bridge component under water, includes the annular slab, the upper portion of annular slab articulates there is the link gear, there is detection mechanism lower part of annular slab through connecting rod swing joint, the inside fixedly connected with electro-magnet of annular slab, detection mechanism includes the support frame, the inside fixedly connected with pivot of support frame, the inside fixedly connected with drainage channel of pivot, the axle sleeve has been cup jointed on the surface of pivot, and the fixed surface of axle sleeve is connected with the drill bit, the inside of support frame and the top swing joint who is located the axle sleeve have the stopper, the lower part fixedly connected with pick-up plate of support frame.

The invention has the beneficial effects that:

1. the electromagnet in the annular plate generates magnetism when working, hydrated tetracalcium aluminoferrite is contained in cement gel in cement concrete, and the ferrite property is achieved, the cement concrete is used as a magnetic medium, the relative magnetic permeability of the cement concrete is larger than that of air, therefore, when the magnets are equidistant, the attraction force of the magnets to reinforcing steel bars in the reinforced concrete is larger than that in the air, according to the characteristic, when the annular plate surrounds the underwater cement column of a bridge, if the exposed rib phenomenon occurs on the cement column, the annular plate can be adsorbed on the surface of the annular plate, and under the driving of a linkage mechanism, the annular plate is fixedly clamped on the surface of the cement column, so that the effect of detecting the exposed rib position of the cement column is achieved.

2. Make the annular plate centre gripping on the cement column surface through link gear, the annular plate removes the drill bit that makes in the detection mechanism and presses close to the cement column surface, and inside the drill bit can go deep into the cement column, further detects the inside situation of cement column, and under the centre gripping of electro-magnet, when the drill bit stop work, opens the pick-up plate, makes it can the steady job and detect to reach the purpose that combines physical technology and instrument together to detect the concrete strength.

Preferably, the link gear includes the casing, and the inside elastic connection of casing has the spring, the one end fixedly connected with push rod of casing is kept away from to the spring, the one end swing joint that the spring was kept away from to the push rod has the bracing piece.

Preferably, one end of the support rod, which is far away from the push rod, is hinged with the annular plate.

Preferably, the number of the annular plates is two, and the annular plates are symmetrically arranged on two sides of the supporting rod.

Preferably, the elastic force of the spring is smaller than the magnetic force generated when the electromagnet is adsorbed to the steel bar.

Preferably, the number of the detection mechanisms is two, and the detection mechanisms are symmetrically arranged at the lower part of the annular plate.

Preferably, the shaft sleeve is movably connected with the rotating shaft through a clutch.

Preferably, the height of the limiting block in the support frame is smaller than the length of the drill bit.

Preferably, the electromagnets are annular and uniformly distributed in the annular plate.

Drawings

FIG. 1 is a top view of the structure of the present invention;

FIG. 2 is a cross-sectional view of an annular plate construction of the present invention;

FIG. 3 is a schematic view of the detection mechanism of the present invention when not in operation;

FIG. 4 is a cross-sectional view of the detection mechanism of the present invention in operation;

FIG. 5 is a cross-sectional view of the sensing mechanism of the present invention;

FIG. 6 is a schematic view of a linkage mechanism according to the present invention.

In the figure: the device comprises a ring-shaped plate 1, a linkage mechanism 2, a connecting rod 3, a detection mechanism 4, an electromagnet 5, a support frame 6, a rotating shaft 7, a drainage channel 8, a shaft sleeve 9, a drill bit 10, a limiting block 11, a detection plate 12, a shell 13, a spring 14, a push rod 15 and a support rod 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an apparatus for detecting an underwater component of a bridge by using magnetism of a magnet comprises two annular plates 1, the two annular plates 1 are symmetrically installed at two sides of a support rod 16, the upper portion of the annular plate 1 is hinged with a linkage mechanism 2, the linkage mechanism 2 comprises a housing 13, the interior of the housing 13 is elastically connected with a spring 14, the elastic force of the spring 14 is smaller than the magnetic force when the electromagnet 5 is adsorbed to a steel bar, one end of the spring 14 far away from the housing 13 is fixedly connected with a push rod 15, one end of the push rod 15 far away from the spring 14 is movably connected with the support rod 16, one end of the support rod 16 far away from the push rod 15 is hinged with the annular plate 1, the lower portion of the annular plate 1 is movably connected with a detection mechanism 4 through a connecting rod 3, the number of the detection mechanism 4 is two, and the two detection mechanisms are symmetrically, and evenly distributed is in the inside of annular slab 1, detection mechanism 4 includes support frame 6, the inside fixedly connected with pivot 7 of support frame 6, the inside fixedly connected with drainage channel 8 of pivot 7, axle sleeve 9 has been cup jointed on the surface of pivot 7, axle sleeve 9 passes through clutch and pivot 7 swing joint, the fixed surface of axle sleeve 9 is connected with drill bit 10, the inside of support frame 6 and the top swing joint who is located axle sleeve 9 have stopper 11, stopper 11 highly is less than the length of drill bit 10 in support frame 6 locates, the lower part fixedly connected with pick-up plate 12 of support frame 6.

When the device is used, the device is placed around a cement column to be detected, the opening degree of the annular plate 1 is adjusted according to the size of the cement column, the device and the driving part are matched, the electromagnet 5 generates magnetism, because hydrated tetracalcium aluminoferrite is contained in cement gel in cement concrete, and the cement concrete is ferrite, and the relative magnetic conductivity of the cement concrete as a magnetic medium is larger than that of air, therefore, the attraction force of the electromagnet on a steel bar in the reinforced concrete is larger than that in the air at equal intervals, the characteristic that the electromagnet 5 generates the attraction force on the steel bar is utilized, when the steel bar exposed outside is met, the distance between the electromagnet 5 and the steel bar is reduced, the annular plate 1 is magnetically driven to be adsorbed on the surface of the steel bar, so that the position of the exposed steel bar of the cement column is detected, when the steel bar of one side of the annular plate 1 is adsorbed on the surface, the annular plate 1 moves to drive the supporting rod 16 and, spring 14 compression makes the annular plate 1 of symmetry be close to each other, form stable clamping-force, annular plate 1 removes and drives its inside detection mechanism 4 also to be close to the cement post, it makes pivot 7 rotatory to start the driver part, pivot 7 is rotatory to drive drill bit 10 and is removed suitable position, drill bit 10 carries out the drilling of certain degree of depth to the cement post under the restriction of stopper 11, detect the intensity of concrete, when drill bit 10 stop work, the inside situation of drilling is detected to pick-up plate 12, provide more accurate detection data.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.