CN113324466B

CN113324466B - Building detects with thick appearance of membrane

Info

Publication number: CN113324466B
Application number: CN202110471683.9A
Authority: CN
Inventors: 张丙岩
Original assignee: Suzhou Jiaoke Chongqing Inspection And Testing Certification Co ltd
Current assignee: Suzhou Jiaoke Chongqing Inspection And Testing Certification Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-11-11
Anticipated expiration: 2041-04-29
Also published as: CN113324466A

Abstract

The invention relates to the technical field of building equipment, and discloses a film thickness gauge for building detection. This membrane thickness gauge is used in building detection, cyclic annular setting in the bottom of the appearance body through the briquetting, and be provided with between every briquetting and connect the rubber ring, it makes equipment when the staff is handheld crooked during operation to go up gasbag and lower gasbag intercommunication, the briquetting of crooked one side pushes down the shrink distance greatly, can promote the balladeur train of crooked one side at first and the switch cooperation that corresponds with it, loosen the weight, the weight is drawn back under the spring action of extension spring, gasbag on the compression, gas in with it is injected into down the gasbag through even hole, and then make the briquetting of crooked one side after gasbag gas injection down, because the briquetting with by the unable holding down of measured surface contact, gasbag inflation and appearance body interference fit down, the reaction is on the appearance body, promote the whole return of the appearance body, guarantee the accuracy of equipment detection data.

Description

Building detects with thick appearance of membrane

Technical Field

The invention relates to the technical field of building equipment, in particular to a film thickness meter for building detection.

Background

The film thickness tester is divided into a handheld type and a desk type, the handheld type is also provided with a magnetic induction coating thickness tester and an electric eddy current coating thickness tester, the electric eddy current thickness tester is a small-sized instrument, the eddy current measuring principle is adopted, coatings such as paint, plastic, rubber and the like on a nonferrous metal organism or the thickness of an anodic oxide film on an aluminum substrate can be conveniently and nondestructively measured, and the instrument is widely applied to industries such as machinery, automobiles, shipbuilding, petroleum, chemical engineering, electroplating and the like.

The eddy current thickness gauge corrects equipment after a power supply is turned on, measurement can be started on the premise of confirming calibration, a measurement sensor is pressed onto a measured coating, the equipment works for measurement, alternating current is introduced into a probe with a coil wound on the outer surface of an iron core made of a whole ferromagnetic material, because magnetic flux passing through the iron core is periodically changed along with the current, induced electromotive force is generated in closed circuits, eddy current is formed under the action of the electromotive force, induced current liquid generates an alternating magnetic field which is reversely acted on the coil, the direction of the alternating magnetic field is opposite to that of an original magnetic field of the coil, the two magnetic fields are superposed to change impedance, and the power supply is turned off after the measurement is finished.

The existing film thickness meter has the technical problems that an eddy current generated in a measured body by a magnetic field generated by an iron core wound with a coil can generate heat, and after the film thickness meter is used for a long time, liquid at a probe of equipment can generate heat to influence the ambient temperature around the probe, so that the measurement data of the equipment is influenced; meanwhile, the probe is required to be held by hand, in order to ensure that the probe is closely contacted with the side surface of a measured object, the probe is easy to be inclined due to the fact that hands are sour after multiple times of measurement, the distance between the probe and the measured surface is increased, and measurement data are inaccurate.

Disclosure of Invention

The invention provides a film thickness meter for building detection, which has the advantages of automatically righting equipment, relieving the ambient temperature when the equipment is heated and measured, and solving the problems that the equipment is easy to deflect when being pressed by hands, the measurement is inaccurate, the ambient temperature is high due to the heating of the equipment, and the accuracy of measured data is influenced.

The invention provides the following technical scheme: the utility model provides a building detects uses thick appearance of membrane, includes the appearance body, the fixed suit in middle part of the appearance body has the iron core, the surface winding of iron core has the coil, the cyclic annular fixed mounting in upper portion of the appearance body has the switch, the inside of the appearance body and the outer lane fixed mounting who is located the switch have the pressure spring, the lower fixed surface of pressure spring installs the balladeur train, one side movable mounting of balladeur train has the couple, the outer surface movable mounting of balladeur train lower part has the weight, the fixed mounting all around of weight lower surface has the extension spring, the surface of balladeur train lower part just is located the below cover of weight and is equipped with the compression leg, fixed mounting has the gasbag between weight and the compression leg, the bottom surface fixed mounting of compression leg has the gasbag down, the bottom surface fixed mounting of gasbag has the briquetting down, the inside of compression leg has seted up the continuous hole that leads to gasbag and last gasbag, the cyclic annular exhaust hole of having seted up in upper portion of the appearance body, the cyclic annular inlet port has been seted up to the inside of the appearance body, the outer surface movable mounting of weight is equipped with the clamp plate, the one end fixed mounting of clamp plate has piston valve and inlet port sliding fit, the single-phase branch bag expansion below of valve and branch bag contact below.

Preferably, the pressing blocks are annularly arranged at the bottom of the instrument body, a connecting rubber ring is arranged between every two pressing blocks for connection, and the upper air bag is communicated with the lower air bag.

Preferably, the single-phase valve is movably sleeved with the air inlet, and the branch hole is matched with the single-phase valve and can be blocked after the single-phase valve descends.

Preferably, the height of the piston valve is larger than the moving stroke of the pressure plate, and the valve in the piston valve is in a one-way downward direction.

The invention has the following beneficial effects:

1. this building detects uses thick appearance of membrane, the bottom of through the briquetting at the appearance body is cyclic annular to be set up, and be provided with between every briquetting and connect the rubber ring, it makes equipment when the staff is handheld crooked during operation to go up gasbag and lower gasbag intercommunication, the briquetting of crooked one side pushes down the shrink distance greatly, can promote the balladeur train of crooked one side at first and the switch cooperation that corresponds with it, loosen the weight, the weight draws back under the elastic force effect of extension spring, gasbag on the compression, gas in it is injected into down the gasbag through even hole, and then make the briquetting of crooked one side gasbag gas injection back down, because the briquetting with by the unable push down of face contact of being surveyed, gasbag inflation and appearance body interference fit down, the counteraction is on the appearance body, promote the whole return of the appearance body, guarantee the accuracy of equipment detection data.

2. This thick appearance of membrane for building detection, through single-phase valve and inlet port activity suit, branch hole and single-phase valve cooperation, can plug up the branch hole after single-phase valve descends, make appearance body lower surface be heated the back, hot-air rises and can get into in the branch hole, by last expansion bag absorption inflation, and then promote the clamp plate to move down, pour into the bottom of equipment with the cold air between piston valve and the single-phase valve, discharge from the exhaust hole, accelerate equipment inner chamber air flow rate, prevent that equipment internal environment temperature is too high, influence the precision of measured data, after the piston valve moves down, hot-air no longer pours into in the branch hole, and the downthehole hot-air of branch is cooled down, make and go up expansion bag atmospheric pressure reduce, the clamp plate is promoted the return by the lower spring, open the branch hole once more, get into hot-air, reach the equipment in the intermittent type fill cold air and guarantee that the temperature is suitable, guarantee the accuracy of equipment measured data.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic bottom view of the present invention;

fig. 4 is a structural diagram of the skew working state of the present invention.

In the figure: 1. an instrument body; 2. an iron core; 3. a coil; 4. a switch; 5. a pressure spring; 6. a carriage; 7. hooking; 8. a weight dropper; 9. a tension spring; 10. pressing the column; 11. an upper air bag; 12. a lower air bag; 13. briquetting; 14. connecting holes; 15. an exhaust hole; 16. an air inlet; 17. pressing a plate; 18. a piston valve; 19. an upper dilatation balloon; 20. a lower spring; 21. a single-phase valve; 22. a branch hole; 23. a rubber ring is connected.

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, a film thickness gauge for building detection comprises a gauge body 1, an iron core 2 is fixedly sleeved in the middle of the gauge body 1, a coil 3 is wound on the outer surface of the iron core 2, a switch 4 is fixedly installed on the upper portion of the inside of the gauge body 1 in an annular manner, a pressure spring 5 is fixedly installed inside the gauge body 1 and located on the outer ring of the switch 4, a carriage 6 is fixedly installed on the lower surface of the pressure spring 5, a hook 7 is movably installed on one side of the carriage 6, a heavy hammer 8 is movably sleeved on the outer surface of the lower portion of the carriage 6, a tension spring 9 is fixedly installed around the lower surface of the heavy hammer 8, a compression column 10 is sleeved on the outer surface of the lower portion of the carriage 6 and located below the heavy hammer 8, an upper air bag 11 is fixedly installed between the heavy hammer 8 and the compression column 10, a lower air bag 12 is fixedly installed on the bottom surface of the compression column 10, a pressing block 13 is fixedly installed on the bottom surface of the lower air bag 12, a connecting hole 14 for connecting the lower air bag 12 and the upper air bag 11 is formed inside the compression column 10, the upper part of the instrument body 1 is annularly provided with an exhaust hole 15, the inside of the instrument body 1 is annularly provided with an air inlet hole 16, the outer surface of the heavy hammer 8 is movably sleeved with a pressing plate 17, one end of the pressing plate 17 is fixedly provided with a piston valve 18, the piston valve 18 is in sliding fit with the air inlet hole 16, the upper surface of the pressing plate 17 is fixedly provided with an upper expansion bag 19, the lower surface of the pressing plate 17 is fixedly provided with a lower spring 20, a single-phase valve 21 is movably sleeved below the air inlet hole 16 and below the stroke of the pressing plate 17, a branch hole 22 is arranged below the air inlet hole 16 and starts to be matched with the single-phase valve 21, the branch hole 22 is contacted with the upper expansion bag 19, hot air rises and can enter the branch hole 22 and is absorbed and expanded by the upper expansion bag 19, so as to push the pressing plate 17 to move downwards, cold air between the piston valve 18 and the single-phase valve 21 is injected to the bottom of the equipment and is exhausted from the exhaust hole 16, accelerate equipment inner chamber air flow rate, prevent that the inside ambient temperature of equipment is too high, influence measured data's precision.

Wherein, briquetting 13 is cyclic annularly to be set up in the bottom of appearance body 1, and be provided with between every briquetting 13 and connect rubber ring 23, go up gasbag 11 and lower gasbag 12 intercommunication, be connected rubber ring 23 through briquetting 13 and connect, make equipment when the handheld crooked work of staff, briquetting 13 of crooked one side pushes down the shrink distance big, can promote the balladeur train 6 of crooked one side at first with the switch 4 cooperation that corresponds with it, loosen weight 8, weight 8 is drawn back under the spring action of extension spring 9, compress last gasbag 11, inject the gas in it into lower gasbag 12 through connecting hole 14, and then make briquetting 13 of crooked one side behind lower gasbag 12 gas injection, because briquetting 13 and the unable push down of face contact of being surveyed, gasbag 12 inflation and appearance body 1 interference fit down, react on appearance body 1, promote appearance body 1 whole to return to the straight.

The single-phase valve 21 is movably sleeved with the air inlet 16, the branch hole 22 is matched with the single-phase valve 21, the branch hole 22 can be blocked after the single-phase valve 21 descends, hot air can enter the branch hole 22 after the lower surface of the instrument body 1 is heated through the matching of the single-phase valve 21 and the branch hole 22 and is absorbed and expanded by the upper expansion bag 19, the pressing plate 17 is pushed to move downwards, cold air between the piston valve 18 and the single-phase valve 21 is injected into the bottom of the equipment and is exhausted from the exhaust hole 15, the air flow rate of an inner cavity of the equipment is accelerated, the phenomenon that the temperature of the environment inside the equipment is too high and the accuracy of measured data is influenced is prevented, after the piston valve 18 moves downwards, the hot air is not injected into the branch hole 22 any more, the hot air in the branch hole 22 is cooled, the air pressure of the upper expansion bag 19 is reduced, the pressing plate 17 is pushed by the lower spring 20, the branch hole 22 is opened again, the return hot air enters, and the cold air intermittently filled in the equipment, so that the temperature is proper.

The height of the piston valve 18 is greater than the moving stroke of the pressure plate 17, the valve in the piston valve 18 is in a one-way downward direction, and the shape matching of the piston valve 18 enables the piston valve 18 and the single-phase valve 21 to be separated from each other, cold air is sucked from the outside into the space between the piston valve 18 and the single-phase valve 21, the pressure plate 17 drives the slide way of the piston valve 18 to move, air leakage cannot be caused, when the piston valve 18 moves upwards, the single-phase valve 21 can be driven to ascend under the action of negative pressure, the branch hole 22 is opened, when the upper expansion bag 19 expands to drive the pressure plate 17 to move downwards, the slide way of the piston valve 18 can be still blocked after the piston valve 18 moves downwards, air between the piston valve 18 and the single-phase valve 21 is prevented from being discharged from the upper part, cold air is guaranteed to be injected into equipment downwards from the single-phase valve 21, and the ambient temperature during equipment detection is guaranteed.

The working principle of the film thickness meter is as follows:

firstly, the lower part of the instrument body 1 is held, the bottom surface of an iron core 2 is aligned to a part to be detected, equipment is pressed downwards, air in a lower air bag 12 is firstly compressed to enter an upper air bag 11, then a carriage 6 is pushed to move upwards, when the instrument body is held and pressed downwards obliquely, the contraction distance of a pressing block 13 on one side is larger, the correspondingly installed carriage 6 can firstly contact with a corresponding switch 4, a hook 7 is separated from a heavy hammer 8, the heavy hammer 8 falls under the action of the elasticity of a tension spring 9, then the upper air bag 11 is compressed to inject the air in the upper air bag 11 into the lower air bag 12 through a connecting hole 14, the pressing block 13 cannot move downwards under the action of the side surface, after the expansion of the lower air bag 12 is fixedly sleeved with the instrument body 1, the expansion of the lower air bag reacts on the instrument body 1 to return the oblique instrument body 1, the equipment after returning to positive starts to be electrified for detection, when the detection points are too many, the equipment generates heat to influence the temperature of the detection environment in the equipment, hot air in the equipment rises and conducts, the upper expansion bag 19 is heated and expands, the pressing plate 17 is pushed to drive the piston valve 18 to move downwards, cold air between the piston valve 18 and the single-phase valve 21 is injected to the bottom of the equipment to relieve the measurement environment temperature, the single-phase valve 21 is driven to move downwards during compression, the branch hole 22 is closed, the temperature in the branch hole 22 is reduced by heat exchange of partial air on the air inlet hole 16, the upper expansion bag 19 is contracted, the piston valve 18 is driven to move upwards again, the single-phase valve 21 moves upwards to open the branch hole 22 under the action of negative pressure, and the next time of inputting cold air to reduce the measurement environment temperature can be carried out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a building detects uses membrane thickness appearance, includes appearance body (1), its characterized in that: the middle part of the instrument body (1) is fixedly sleeved with an iron core (2), the outer surface of the iron core (2) is wound with a coil (3), the upper part of the inside of the instrument body (1) is fixedly provided with a switch (4), the inside of the instrument body (1) is fixedly provided with a pressure spring (5) which is positioned at the outer ring of the switch (4), the lower surface of the pressure spring (5) is fixedly provided with a carriage (6), one side of the carriage (6) is movably provided with a hook (7), the outer surface of the lower part of the carriage (6) is movably sleeved with a heavy hammer (8), the periphery of the lower surface of the heavy hammer (8) is fixedly provided with a tension spring (9), the outer surface of the lower part of the carriage (6) is sleeved with a pressure column (10) which is positioned below the heavy hammer (8), the air bag (11) is fixedly arranged between the heavy hammer (8) and the pressure column (10), the bottom surface of the pressure column (10) is fixedly provided with a lower air bag (12), the bottom surface of the lower air bag (12) is fixedly provided with a pressing block exhaust hole (13), the inside of the pressure column (10) is provided with a communicating air bag (12) and an upper part of the instrument body (1), and an upper part of the instrument body (15) is provided with an annular air inlet hole (1), the outer surface movable sleeve of weight (8) is equipped with clamp plate (17), the one end fixed mounting of clamp plate (17) has piston valve (18), piston valve (18) and inlet port (16) sliding fit, the last fixed mounting of clamp plate (17) has last expansion bag (19), the lower fixed mounting of clamp plate (17) has down spring (20), the below of inlet port (16) just is located the below movable sleeve of clamp plate (17) stroke and is equipped with single-phase valve (21), the below of inlet port (16) just begins to have branch hole (22) with single-phase valve (21) cooperation, branch hole (22) and last expansion bag (19) contact, briquetting (13) are at the bottom cyclic annular setting of appearance body (1), and are provided with between every briquetting (13) and connect rubber ring (23), go up gasbag (11) and lower gasbag (12) intercommunication, single-phase valve (21) and inlet port (16) movable sleeve, branch hole (22) and single-phase valve (21) cooperation, can block up single-phase valve (21) behind single-phase valve (21) decline piston valve (18), the piston valve's height is greater than the piston valve (18) travel down the clamp plate moves.