CN114544766B

CN114544766B - Concrete compactness detection device and detection method thereof

Info

Publication number: CN114544766B
Application number: CN202210156038.2A
Authority: CN
Inventors: 郑佳丽; 余建; 陈侣佶; 王康; 方渭
Original assignee: Quzhou Jiaoke Engineering Testing Co ltd
Current assignee: Quzhou Jiaoke Engineering Testing Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2023-08-18
Anticipated expiration: 2042-02-21
Also published as: CN114544766A

Abstract

The application discloses a device for detecting compactness of concrete, which comprises: the ring body consists of a first semi-ring and a second semi-ring which are the same in structure and an adjusting seat for connecting the first semi-ring and the second semi-ring; the fixed seat comprises a seat body and a seat table arranged on the seat body, one end of the seat body is hinged with the other end of the first semi-ring, and the other end of the seat body is hinged with the other end of the second semi-ring; the knocking device is arranged on the seat table and comprises a swinging hammer and a driving mechanism for controlling the swinging of the swinging hammer, and the swinging hammer is used for knocking concrete to be detected; the measuring device is arranged on the ring body and used for collecting sound generated by the knocking device when knocking the concrete, and the measuring device comprises a plurality of sound sensors and a display connected with the sound sensors; one end of the first semi-ring is hinged with the adjusting seat, and one end of the second semi-ring is detachably connected with the adjusting seat.

Description

Concrete compactness detection device and detection method thereof

Technical Field

The application belongs to a building construction detection device, and particularly relates to a detection device and a detection method for concrete compactness.

Background

In practical engineering construction, the mass of concrete has a significant influence on the whole engineering mass, and the hardened concrete should have enough strength and durability indexes to bear load and resist corrosion of the environment, wherein the important index is the compactness of the concrete, and the compactness of the concrete refers to the proportion of the volume of solid matters of the concrete to the total volume, so that the degree of filling the solid matters in the volume of the concrete is described, namely, the compactness of the concrete is reflected, the higher the compactness is, the higher the density is, and the overall performance of the material is better.

Currently, three common methods for detecting the compactness of a concrete filled steel tubular column are generally adopted:

1. the core drilling method is to drill holes and loose cores on the formed concrete filled steel tube column, and the quality of concrete in the column core is judged according to the quality condition of the drilled core sample, so that obviously, the core drilling method can only continuously detect the quality of concrete at a certain test point, the quality condition of the whole concrete column cannot be comprehensively judged, and the limitation is large; the grouting reinforcement of the drilling hole is difficult to meet the requirement of the same strength as the concrete of the whole column core, the risk of damaging the integrity of the concrete column exists, and the stress of the concrete column can be weakened when serious; and the core drilling method has the defects of long period, high cost, difficult erection of core drilling equipment on the concrete filled steel tube column and the like.

2. The basic principle of the ultrasonic method is that a transmitting transducer radiates high-frequency vibration at one end of the outer diameter of a steel pipe, the high-frequency vibration is transmitted to a receiving transducer at the other end of the outer diameter of the steel pipe through the center of the circle of the steel pipe, the ultrasonic wave can change the propagation direction and path when encountering an interface formed by various defects in the propagation process, the energy of the ultrasonic wave can be attenuated at the defect, and the relative changes of sound, sound amplitude and frequency are caused when the ultrasonic wave reaches the receiving transducer. The method has high cost and is seriously influenced by construction environment, so that the method has strong theoretical property but low feasibility in the actual construction process.

3. The knocking method is suitable for the mass of the core concrete, and is greatly influenced by subjective factors completely by the technology and experience of technicians; moreover, the knocking method lacks theoretical basis and data for archiving, which is inconvenient for construction technology management and quality detection technology management; in addition, the knocking method is difficult to accurately judge for the steel pipe concrete column with larger wall thickness.

The publication number is: CN109212030B, which discloses a concrete filled steel tubular column compactness accurate detection device, comprises a movable ring, a fixed seat, a connecting seat, a handle, a swinging rod, an impact hammer and a rotating shaft; the other ends of the two movable rings are fixedly connected through a connecting structure to form a closed circular ring, a horizontal threaded hole is formed in the connecting structure, internal threads are arranged in the threaded hole, a compression adjusting bolt is arranged in the threaded hole in a penetrating mode, and the other ends of the compression adjusting bolts are rotatably connected with compression plates through bearings; the underside of the movable ring is fixedly provided with a plurality of sound sensors.

According to the application, the expandable movable ring is arranged and connected through the connecting structure capable of being quickly assembled and disassembled, so that the ring is ensured to be arranged on the outer side of the concrete filled steel tube column, and the installation and the use of the device are facilitated; the adjustable compressing sheet can change the pressure to the steel tube concrete column, makes the device supported to avoid the device to drop, use safelyr, but above-mentioned device still has the problem that the installation is unstable enough in the use, simply leads to fixing unstable by compressing the sheet is fixed easily, makes the device incline to the end that the impact hammer is located, and moreover, the use of impact hammer still needs artifical promotion, and is accurate inadequately, wastes time and energy, still needs to strengthen.

Disclosure of Invention

The application aims to provide a device and a method for detecting concrete compactness, which can solve the problems.

The application aims to provide a device for detecting concrete compactness, which comprises the following components: the ring body consists of a first semi-ring and a second semi-ring which are the same in structure and an adjusting seat for connecting the first semi-ring and the second semi-ring; the fixed seat comprises a seat body and a seat table arranged on the seat body, one end of the seat body is hinged with the other end of the first semi-ring, and the other end of the seat body is hinged with the other end of the second semi-ring; the knocking device is arranged on the seat table and comprises a swinging hammer and a driving mechanism for controlling the swinging of the swinging hammer, and the swinging hammer is used for knocking concrete to be detected; the measuring device is arranged on the ring body and used for collecting sound generated by the knocking device when knocking the concrete, and the measuring device comprises a plurality of sound sensors and a display connected with the sound sensors; one end of the first semi-ring is hinged with the adjusting seat, and one end of the second semi-ring is detachably connected with the adjusting seat.

Adopt foretell detection device of concrete compactness, through setting up the ring body, can fix detection device on the concrete that needs to detect, through setting up the knocking device, use knocking device cooperation measuring device, strike concrete production sound through the knocking device to collect, record through measuring device strike the sound that produces, the user judges the compactness of concrete through striking the sound of collecting, whole device easy operation uses in a flexible way.

Further, the sound sensor is at the lower surface of first semi-ring and second semi-ring, and sound sensor evenly distributed all is provided with the protective housing on every sound sensor.

Through evenly setting up the sound sensor in the lower surface of first semi-ring and second semi-ring, the sound of different positions can be collected to the position difference of sound sensor, and a plurality of sound sensors try to show the sound of different directions in real time, can make the data that detect more accurate, moreover, through installing the protective housing on sound sensor, can play the guard action to sound sensor.

Further: the driving mechanism includes: the first driving wheel comprises a first wheel body, a first arc-shaped extension plate and a second arc-shaped extension plate which extend outwards are symmetrically arranged on the first wheel body, a first gap and a second gap are formed between the first arc-shaped extension plate and the first wheel body, and first teeth are arranged on the first gap and the second gap; the second driving wheel comprises a second wheel body, second teeth are arranged on the second wheel body, a first arc-shaped groove and a second arc-shaped groove which are inwards sunken are arranged on the second wheel body, and the first arc-shaped groove and the second arc-shaped groove are matched with the first arc-shaped extension plate and the second arc-shaped extension plate; the third driving wheel comprises a third wheel body, the third wheel body is matched with the first arc-shaped groove and the second arc-shaped groove, a third notch which is concave inwards is formed in the third wheel body, third teeth are arranged in the third notch, and one end, far away from the third teeth, of the third wheel body is connected with the swinging hammer; the driving motor is arranged on the seat table, and an output shaft of the driving motor is connected with the first driving wheel and drives the first driving wheel to rotate; the first teeth and the second teeth are mutually matched, the second teeth and the third teeth are mutually matched, the radians of the first arc-shaped extension plate and the second arc-shaped extension plate are 90 degrees, the radians of the first arc-shaped groove and the second arc-shaped groove are 90 degrees, and the radian of the third notch is also 90 degrees.

When the driving mechanism operates, the driving motor is started, the driving motor drives the first driving wheel to rotate, the first driving wheel can drive the second driving wheel to rotate, when the first arc extending plate and the second arc extending plate are contacted with the first arc groove or the second arc groove, the first driving wheel can not drive the second driving wheel to rotate, only when the first tooth teeth in the first notch and the second notch are meshed with the second tooth teeth on the second wheel body, the first driving wheel can drive the second driving wheel to rotate, when the second driving wheel rotates, the third driving wheel can drive the third driving wheel to rotate, but only when the second tooth is meshed with the third tooth, the third driving wheel can drive the swinging hammer to lift when the third driving wheel rotates, and because the radian of the first arc extending plate and the second arc extending plate is 90 DEG, the radian of first arc wall and second arc wall is 90, the radian of third breach also is 90, so second drive wheel and third drive wheel are the interval rotation, the lifting height of pendulum bob receives the influence of second tooth and third tooth radian length, the lifting gradually along with the contact of second tooth and third tooth of pendulum bob, when second tooth and third tooth are not in the meshing, the pendulum bob can receive the influence whereabouts of gravity and strike the concrete, cooperation between through first drive wheel, second drive wheel and the third drive wheel can make pendulum bob intermittent type lifting and automatic whereabouts, accomplish the work of automatic strike, thereby liberation staff's both hands, do not need artifical lifting pendulum bob, save time and labor.

Further, still be equipped with the dead lever on the second wheel body, the dead lever is the shaft-like body that the center of second wheel body extends to first arc wall and second arc wall direction, be equipped with the first poking rod that is used for poking the dead lever on the first drive wheel, the quantity of first poking rod is two, be equipped with the second poking rod that contacts with the dead lever on the third drive wheel, wherein, first poking rod sets up perpendicularly on first drive wheel, and the second poking rod sets up perpendicularly on the third drive wheel.

Through setting up the dead lever on the second wheel body to set up first poking bar on first drive wheel, set up the second poking bar on the second drive wheel, can make the cooperation between first drive wheel, second drive wheel and the third drive wheel more accurate, when first drive wheel rotates, first poking bar can stir the second drive wheel through the dead lever first before first tooth and second tooth meshing, make second tooth perfect and first tooth contact and meshing, effectively prevent unable meshing between first tooth and the second tooth to lead to detecting the mistake, in the same way, when first poking bar stirs the dead lever, the dead lever is kept away from first poking bar's one end can with the second poking bar contact on the third drive wheel and stir the third drive wheel through the second poking bar and rotate certain angle, third tooth on the third drive wheel can perfect and the second tooth meshing on the second drive wheel.

Further, still include and hold tightly the device, set up on the ring body, hold tightly the device and include: the first expansion strip is arranged in the first half ring, the first expansion strip is arc-shaped, an air injection pipe extending upwards is arranged on the upper surface of the first expansion strip, and an air injection port is formed in the air injection pipe; the second expansion strip is arranged in the second half ring and is arc-shaped, and the second expansion strip and the first expansion strip have the same structure; the storage groove is arranged in the first semi-ring and the second semi-ring, the storage groove is of an arc structure, one side with the larger diameter of the storage groove is connected with the side wall of the first expansion strip, one end with the smaller diameter of the storage groove is provided with an extrusion groove, and when gas is injected into the first expansion strip, the first expansion strip expands outwards through the extrusion groove; the first semi-ring and the second semi-ring are further provided with a protection ring, the protection ring is wrapped outside the gas injection pipe, and the protection ring is further provided with a sealing plug.

When detecting, need fixed detection device, can further improve detection device's installation stability and firm degree through holding tightly the device, during the use, install first semi-ring and second semi-ring on the concrete column that needs to detect, and it is fixed with first semi-ring, the second semi-ring, at this moment, in with gas injection pipe with gas drive first expansion strip and second expansion strip, first expansion strip and second expansion strip pass through the extrusion groove and outwards expand gradually, first expansion strip and second expansion strip after the inflation can be with the extruded concrete column, thereby firmly fix whole detection device, and first expansion strip and second expansion strip are the rubber material, can laminate with the outer wall of concrete column, prevent that the concrete column outer wall that needs to detect is uneven, influence the accuracy of detection and the stability of installation, and after detecting, only need with the gas in first expansion strip and the second expansion strip emit can dismantle detection device, swiftly and convenient, in addition, through setting up the protection ring outside the gas injection pipe, can play the guard action to the gas injection pipe, prevent that the gas injection pipe from receiving the damage.

Further, the sealing plug includes: the sealing table is arranged in the gas injection port, the bottom of the sealing table is connected with the gas injection pipe, the outer wall of the sealing table is connected with the inner wall of the protection ring, and the middle part of the sealing table is provided with a vent communicated with the gas injection; the plug body comprises an expansion section, a connecting section and an injection section which are sequentially connected, wherein the expansion section penetrates through the air vent and extends into the air injection pipe, a cavity is formed in the expansion end, the outer wall of the connecting section is attached to the air vent, and the outer wall of the injection section is attached to the inner wall of the sealing table; the cavity is provided with a channel, the channel sequentially penetrates through the connecting section and the injecting section, the injecting section is provided with a spiral cover for plugging the channel, the spiral cover is in threaded connection with the injecting section, and after the cavity expands, the outer wall of the cavity is attached to the inner wall of the gas injection pipe.

When the first expansion strip and the second expansion strip are plugged through the sealing plug after gas injection is completed, the plug body is plugged into the sealing table until the sealing table is completely matched, the spiral cover is opened, gas is injected through the channel, the gas enters the cavity in the expansion end through the channel, the cavity is gradually expanded and is attached to the inner wall of the gas injection pipe, the spiral cover is closed at the moment, sealing is completed, the sealing table is highly connected with the gas injection port, the connecting section in the plug body is larger than the opening of the vent through sealing treatment, the connecting section and the vent are in interference fit, the tightness is improved, the expansion end is made of elastic rubber, the expansion end can be expanded through injecting gas into the cavity, the plug body can be prevented from backing back, the sealing effect can be improved, the gas injection pipe is prevented from leaking gas, meanwhile, the whole sealing plug is quite convenient to detach, the plug body can be pulled out from the sealing table after the gas is released, and the sealing table is convenient and quick.

Further, an inner groove is formed in the inner wall of the protection ring, a sealing ring is arranged on the inner groove, an adjusting piece is arranged at the connecting end of the protection ring and the sealing table, the section of the adjusting piece is Z-shaped, and the sealing ring is arranged at the bending part of the adjusting piece.

When the spiral cover is screwed gradually, the outer wall of the spiral cover can gradually extrude the sealing ring in the inner groove to achieve a sealing effect, meanwhile, when the spiral cover is screwed completely, the spiral cover can extrude the adjusting piece, the cross section of the adjusting piece is Z-shaped, and the bending part of the adjusting piece, which is made of elastic materials, supports the adjusting piece, is also provided with the sealing ring, and can deform to a certain extent, so that the sealing effect is improved.

Further, the application also discloses a method for detecting the compactness of the concrete, which comprises the following steps: s1, fixing a through ring body on concrete to be measured, further fixing the whole detection device through a clasping device, starting a power supply of a sound sensor and a display after the whole detection device is fixed firmly, starting a driving mechanism to work, detecting the change of sound around the concrete by the sound sensor, and transmitting the change of sound to the display;

s3, starting a power supply of the driving motor, lifting the swinging hammer to the highest position, and then falling down, wherein sound generated by concrete of the swinging hammer device is collected through a sound sensor; s4, moving the position of the detection device to enable the knocking position of the swinging hammer to be changed, and repeating the step S3 until detection of all detection points is completed; and S5, judging the compactness of the detected concrete according to the detection data collected by the detection points.

The beneficial effects of the application are as follows:

1. the detection device can be fixed on the concrete to be detected by arranging the ring body, the knocking device is matched with the measuring device to be used, the concrete is knocked by the knocking device to generate sound, the sound generated by knocking is collected and recorded by the measuring device, and a user judges the compactness of the concrete by knocking the collected sound, so that the whole device is simple to operate and flexible to use;

2. when the driving mechanism operates, the driving motor is started, the first driving wheel drives the second driving wheel to rotate only when the first tooth is meshed with the second tooth, the third driving wheel drives the swinging hammer to lift only when the second tooth is meshed with the third tooth, and meanwhile, the second driving wheel and the third driving wheel rotate at intervals, the lifting height of the swinging hammer is influenced by the radian length of the second tooth and the third tooth, the height of the swinging hammer is gradually lifted along with the contact of the second tooth and the third tooth, and when the second tooth is not meshed with the third tooth, the swinging hammer falls under the influence of gravity and strikes concrete;

3. the fixed rod is arranged on the second wheel body, the first poking rod is arranged on the first driving wheel, the second poking rod is arranged on the second driving wheel, so that the first driving wheel, the second driving wheel and the third driving wheel can be matched more accurately, when the first driving wheel rotates, the first poking rod can poke the second driving wheel through the fixed rod before the first teeth are meshed with the second teeth, the second teeth are perfectly contacted with the first teeth and meshed with the first teeth, detection errors caused by incapability of being meshed between the first teeth and the second teeth are effectively prevented, and similarly, when the fixed rod is poked by the first poking rod, one end of the fixed rod, which is far away from the first poking rod, can be contacted with the second poking rod on the third driving wheel, and the third teeth on the third driving wheel are poked by the second poking rod to rotate for a certain angle, and can be perfectly meshed with the second teeth on the second driving wheel;

4. when detecting, fix on concrete column through adjusting seat and first semi-ring, the second semi-ring, in driving gas into first expansion strip and second expansion strip through the gas injection pipe, first expansion strip and second expansion strip pass through the extrusion groove and outwards expand gradually and extrude concrete column, thereby firmly fix whole detection device, and first expansion strip and second expansion strip are rubber material, can laminate with the outer wall of concrete, prevent that the concrete column outer wall that needs to detect is uneven, influence the accuracy of detection and the stability of installation, and after the detection is accomplished, only need with the gas in first expansion strip and the second expansion strip to release can dismantle detection device, and is swift convenient, in addition, through setting up the protection ring outside the gas injection pipe, can play the guard action to the gas injection pipe, prevent that the gas injection pipe from receiving the damage

Drawings

FIG. 1 is a schematic diagram of the structure of the present application;

FIG. 2 is a top view of the application;

FIG. 3 is a schematic diagram of the driving structure of the present application;

fig. 4 is a schematic view of the structure of the sealing plug of the present application;

fig. 5 is an enlarged view of a in fig. 4.

The reference numerals in the drawings are: 100. a ring body; 110. a first half ring; 120. a second half ring; 130. an adjusting seat; 200. a fixing seat; 210. a base; 220. a seat stand; 300. a swinging hammer; 400. a driving mechanism; 410. a first drive wheel; 411. a first wheel body; 412. a first arcuate extension plate; 413. a second arc-shaped extension plate; 414. a first notch; 415. a second notch; 416. a first tooth; 417. a first toggle rod; 420. a second drive wheel; 421. a second wheel body; 422. a second tooth; 423. a first arc-shaped groove; 424. a second arc-shaped groove; 425. a fixed rod; 430. a third drive wheel; 431. a third wheel body; 432. a third notch; 433. a third tooth; 434. the second toggle rod; 440. a driving motor; 500. a measuring device; 510. a sound sensor; 520. a display; 530. a protective shell; 600. a clasping device; 610. a first expansion bar; 611. an air injection pipe; 612. an air injection port; 620. a second expansion strand; 630. a storage groove; 631. an extrusion tank; 640. a guard ring; 700. a sealing plug; 710. a sealing table; 711. a vent; 720. a plug body; 721. an expansion section; 722. a connection section; 723. an injection section; 724. a cavity; 725. a channel; 730. screwing the cover; 740. an inner groove; 750. an adjusting member; 760. and (3) sealing rings.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The device and the method for detecting the compactness of the concrete provided by the embodiment of the application are described in detail through specific embodiments and application scenes thereof by combining the attached drawings.

Example 1:

as shown in fig. 1 and 2, an embodiment of the present application provides a device for detecting concrete compactness, including: the ring body 100 is composed of a first half ring 110 and a second half ring 120 which have the same structure, and an adjusting seat 130 which is connected with the first half ring 110 and the second half ring 120; the fixing seat 200 comprises a seat body 210 and a seat stand 220 arranged on the seat body 210, wherein one end of the seat body 210 is hinged with the other end of the first semi-ring 110, and the other end of the seat body 210 is hinged with the other end of the second semi-ring 120; the knocking device is arranged on the seat 220 and comprises a swinging hammer 300 and a driving mechanism 400 for controlling the swinging of the swinging hammer 300, wherein the swinging hammer 300 is used for knocking concrete to be detected; the measuring device 500 is arranged on the ring body 100 and is used for collecting sound generated by the knocking device when the knocking device knocks the concrete, and the measuring device 500 comprises a plurality of sound sensors 510 and a display 520 connected with the sound sensors 510; one end of the first half ring 110 is hinged to the adjusting seat 130, and one end of the second half ring 120 is detachably connected to the adjusting seat 130.

In some embodiments of the present application, as shown in fig. 1, with the above-mentioned device for detecting concrete compactness, by setting the ring body 100, the device for detecting concrete compactness can be fixed on the concrete to be detected, by setting the knocking device, the knocking device is used in cooperation with the measuring device 500, the knocking device knocks the concrete to generate sound, and the measuring device 500 collects and records the sound generated by the knocking, so that the user can judge the concrete compactness by knocking the collected sound, and the whole device is simple to operate and flexible to use.

In addition, the sound sensors 510 are uniformly distributed on the lower surfaces of the first half ring 110 and the second half ring 120, and a protective shell 530 is disposed on each sound sensor 510.

In the embodiment of the application, the sound sensors 510 are uniformly arranged on the lower surfaces of the first half ring 110 and the second half ring 120, the positions of the sound sensors 510 are different, the sounds at different positions can be collected, the sound sensors 510 are tested to display sounds in different directions in real time, the detected data can be more accurate, and the sound sensors 510 can be protected by installing the protective shell 530 on the sound sensors 510.

Example 2:

the embodiment of the application provides a device for detecting the compactness of concrete, which comprises the technical characteristics as well as the following technical characteristics.

As shown in fig. 3, the driving mechanism 400 includes: the first driving wheel 410 comprises a first wheel body 411, wherein a first arc extending plate 412 and a second arc extending plate 413 which extend outwards are symmetrically arranged on the first wheel body 411, a first gap 414 and a second gap 415 are formed between the first arc extending plate 412 and the second arc extending plate 413 and the first wheel body 411, and first teeth 416 are respectively arranged on the first gap 414 and the second gap 415; the second driving wheel 420 comprises a second wheel body 421, a second tooth 422 is arranged on the second wheel body 421, a first arc-shaped groove 423 and a second arc-shaped groove 424 which are concave inwards are arranged on the second wheel body 421, and the first arc-shaped groove 423 and the second arc-shaped groove 424 are matched with the first arc-shaped extension plate 412 and the second arc-shaped extension plate 413; the third driving wheel 430 comprises a third wheel body 431, the third wheel body 431 is matched with the first arc-shaped groove 423 and the second arc-shaped groove 424, a third notch 432 which is concave inwards is arranged on the third wheel body 431, a third tooth 433 is arranged in the third notch 432, and one end of the third wheel body 431 far away from the third tooth 433 is connected with the swinging hammer 300; the driving motor 440 is disposed on the seat 220, and an output shaft of the driving motor 440 is connected with the first driving wheel 410 and drives the first driving wheel to rotate; wherein, the first teeth 416 and the second teeth 422 are mutually matched, the second teeth 422 and the third teeth 433 are mutually matched, the radians of the first arc-shaped extension plate 412 and the second arc-shaped extension plate 413 are 90 degrees, the radians of the first arc-shaped groove 423 and the second arc-shaped groove 424 are 90 degrees, and the radians of the third notch 432 are also 90 degrees.

In the embodiment of the present application, when the driving mechanism 400 is operated, the driving motor 440 is turned on, the driving motor 440 drives the first driving wheel 410 to rotate, the first driving wheel 410 drives the second driving wheel 420 to rotate, when the first arc-shaped extension plate 412 and the second arc-shaped extension plate 413 are in contact with the first arc-shaped groove 423 or the second arc-shaped groove 424, the first driving wheel 410 does not drive the second driving wheel 420 to rotate, only when the first teeth 416 in the first notch 414 and the second notch 415 are meshed with the second teeth 422 on the second wheel body 421, the first driving wheel 410 drives the second driving wheel 420 to rotate, when the second driving wheel 420 rotates, the third driving wheel 430 drives the third driving wheel 430 to rotate, but only when the second teeth 422 are meshed with the third teeth 433, the third driving wheel 430 drives the swinging hammer 300 to lift, because the radians of the first arc-shaped extension plate 412 and the second arc-shaped extension plate 413 are 90 degrees, the radians of the first arc-shaped groove 423 and the second arc-shaped groove 424 are 90 degrees, and the radian of the third notch 432 is 90 degrees, the second driving wheel 420 and the third driving wheel 430 are rotated at intervals, the lifting height of the swinging hammer 300 is influenced by the radian length of the second tooth 422 and the third tooth 433, the height of the swinging hammer 300 is gradually lifted along with the contact of the second tooth 422 and the third tooth 433, when the second tooth 422 and the third tooth 433 are not engaged, the swinging hammer 300 falls down and strikes concrete under the influence of gravity, the swinging hammer 300 can be intermittently lifted and automatically falls down through the cooperation among the first driving wheel 410, the second driving wheel 420 and the third driving wheel 430, the automatic striking work is completed, hands of a worker are liberated, saving time and labor.

The second wheel 421 is further provided with a fixing rod 425, the fixing rod 425 is a rod-shaped body extending from the center of the second wheel 421 toward the first arc groove 423 and the second arc groove 424, the first driving wheel 410 is provided with two first toggle rods 417 for toggling the fixing rod 425, the third driving wheel 430 is provided with second toggle rods 434 contacting with the fixing rod 425, the first toggle rods 417 are vertically arranged on the first driving wheel 410, and the second toggle rods 434 are vertically arranged on the third driving wheel 430.

In some embodiments of the present application, by providing the fixed lever 425 on the second wheel body 421 and the first toggle lever 417 on the first driving wheel 410 and providing the second toggle lever 434 on the second driving wheel 420, the cooperation among the first driving wheel 410, the second driving wheel 420 and the third driving wheel 430 can be more accurate, when the first driving wheel 410 rotates, the first toggle lever 417 can toggle the second driving wheel 420 through the fixed lever 425 before the first teeth 416 and the second teeth 422 are meshed, so that the second teeth 422 are perfectly contacted and meshed with the first teeth 416, and detection errors caused by the fact that the first teeth 416 and the second teeth 422 cannot be meshed are effectively prevented.

Example 3:

As shown in fig. 2, the device further includes a clasping device 600, disposed on the ring body 100, and the clasping device 600 includes: the first expansion strip 610 is disposed in the first half ring 110, the first expansion strip 610 is in an arc shape, the upper surface of the first expansion strip 610 is provided with an upward extending gas injection pipe 611, and the gas injection pipe 611 is provided with a gas injection port 612; the second expansion bar 620 is disposed in the second half ring 120, the second expansion bar 620 is arc-shaped, and the second expansion bar 620 has the same structure as the first expansion bar 610; the accommodating groove 630 is arranged in the first semi-ring 110 and the second semi-ring 120, the accommodating groove 630 is of an arc structure, one side with larger diameter of the accommodating groove 630 is connected with the side wall of the first expansion strip 610, one end with smaller diameter of the accommodating groove 630 is provided with an extrusion groove 631, and when gas is injected into the first expansion strip 610, the first expansion strip 610 expands outwards through the extrusion groove 631; the first half ring 110 and the second half ring 120 are further provided with a protection ring 640, the protection ring 640 is wrapped outside the gas injection pipe 611, and the protection ring 640 is further provided with a sealing plug 700.

In the embodiment of the application, when the detection device is required to be fixed, the mounting stability and the firmness of the detection device can be further improved through the enclasping device 600, when the detection device is used, the first half ring 110 and the second half ring 120 are mounted on the concrete column to be detected, the first half ring 110 and the second half ring 120 are fixed through the adjusting seat 130, at the moment, air is injected into the first expansion strip 610 and the second expansion strip 620 through the air injection pipe 611, the first expansion strip 610 and the second expansion strip 620 gradually expand outwards through the extrusion groove 631, the first expansion strip 610 and the second expansion strip 620 after expansion can extrude the concrete column, so that the whole detection device is firmly fixed, the first expansion strip 610 and the second expansion strip 620 are made of rubber materials, the outer wall of the concrete column to be detected can be prevented from being uneven, the detection accuracy and the mounting stability are influenced, after the detection is finished, the detection device can be quickly and conveniently dismounted only through the air in the first expansion strip 610 and the second expansion strip 620, and the air injection pipe 611 can be prevented from being damaged through the air injection pipe 640 arranged outside the air injection pipe 611.

Example 4:

As shown in fig. 4 and 5, the sealing plug 700 includes: the sealing table 710 is arranged in the gas injection port 612, the bottom of the sealing table 710 is connected with the gas injection pipe 611, the outer wall of the sealing table 710 is connected with the inner wall of the protection ring 640, and the middle part of the sealing table 710 is provided with a vent 711 communicated with gas injection; the plug body 720 comprises an expansion section 721, a connecting section 722 and an injection section 723 which are sequentially connected, wherein the expansion section 721 passes through the air vent 711 and extends into the air injection pipe 611, a cavity 724 is arranged in the expansion end, the outer wall of the connecting section 722 is attached to the air vent 711, and the outer wall of the injection section 723 is attached to the inner wall of the sealing table 710; the cavity 724 is provided with a channel 725, the channel 725 sequentially penetrates through the connecting section 722 and the injecting section 723, the injecting section 723 is provided with a screw cap 730 for blocking the channel 725, the screw cap 730 is in threaded connection with the injecting section 723, and when the cavity 724 expands, the outer wall of the cavity 724 is attached to the inner wall of the gas injection pipe 611.

In the embodiment of the present application, when the first expansion bar 610 and the second expansion bar 620 need to be sealed by the sealing plug 700 after gas injection is completed, in use, the plug body 720 is plugged into the sealing table 710 until the sealing table is completely matched, the screw cap 730 is opened, gas is injected through the channel 725, the gas enters the cavity 724 in the expansion end through the channel 725, the cavity 724 is gradually expanded and is attached to the inner wall of the gas injection tube 611, at this time, the screw cap 730 is closed, and sealing is completed, wherein the sealing table 710 is highly connected with the gas injection port 612, and the outer wall of the connecting section 722 in the plug body 720 is larger than the opening size of the vent 711 through sealing treatment, so that the connecting section 722 is in interference fit with the vent 711, the tightness is improved, the expansion end is made of elastic rubber material, the expansion end can be expanded through injecting the gas in the cavity 724, the expansion end after expansion can prevent the plug body 720, the sealing effect can also be improved, the gas injection tube 611 is prevented from being leaked, meanwhile, the whole sealing plug 700 is convenient to detach, and the plug body 720 can be pulled out from the sealing table 710 quickly after the gas is discharged.

Further, an inner groove 740 is formed in the inner wall of the guard ring 640, a sealing ring 760 is arranged on the inner groove 740, an adjusting piece 750 is arranged at the connecting end of the guard ring 640 and the sealing table 710, the cross section of the adjusting piece 750 is Z-shaped, and the sealing ring 760 is arranged at the bending part of the adjusting piece 750.

In some embodiments of the present application, when the screw cap 730 is screwed gradually, the outer wall of the screw cap 730 gradually presses the sealing ring 760 in the inner groove 740 to achieve a sealing effect, meanwhile, when the screw cap 730 is screwed completely, the screw cap 730 presses the adjusting member 750, the cross section of the adjusting member 750 is Z-shaped, and the bending part of the adjusting member 750 is made of elastic material and is further provided with the sealing ring 760, which can deform to a certain extent, thereby increasing the sealing effect.

Example 5:

the application also discloses a method for detecting the compactness of the concrete, which comprises the following steps: s1, fixing the through ring body 100 on concrete to be measured, further fixing the whole detection device through the enclasping device 600, starting a power supply of the sound sensor 510 and the display 520 after the fixing is firm, starting the driving mechanism 400 to work, detecting the change of sound around the concrete by the sound sensor 510, and transmitting the change of the sound to the display 520; s3, turning on a power supply of the driving motor 440, lifting the swinging hammer 300 to the highest position, and then falling down, wherein sound generated by concrete of the swinging hammer 300 is collected by the sound sensor 510; s4, moving the position of the detection device to change the knocking position of the swinging hammer 300, and repeating the step S3 until all detection points are detected; and S5, judging the compactness of the detected concrete according to the detection data collected by the detection points.

It should be noted that, in this document, 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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. The utility model provides a detection device of concrete compactness which characterized in that includes:

the ring body (100) consists of a first half ring (110) and a second half ring (120) which are identical in structure, and an adjusting seat (130) for connecting the first half ring (110) and the second half ring (120);

one end of the first semi-ring (110) is hinged with the adjusting seat (130), and one end of the second semi-ring (120) is detachably connected with the adjusting seat (130);

the fixed seat (200) comprises a seat body (210) and a seat table (220) arranged on the seat body (210), one end of the seat body (210) is hinged with the other end of the first half ring (110), and the other end of the seat body (210) is hinged with the other end of the second half ring (120);

the knocking device is arranged on the seat table (220) and comprises a swinging hammer (300) and a driving mechanism (400) for controlling the swinging of the swinging hammer (300), wherein the swinging hammer (300) is used for knocking concrete to be detected;

the measuring device (500) is arranged on the ring body (100) and is used for collecting sound generated by the knocking device when the knocking device knocks the concrete, and the measuring device (500) comprises a plurality of sound sensors (510) and a display (520) connected with the sound sensors (510);

the plurality of sound sensors (510) are uniformly distributed on the lower surfaces of the first half ring (110) and the second half ring (120), and each sound sensor (510) is provided with a protective shell (530);

the drive mechanism (400) includes:

the first driving wheel (410) comprises a first wheel body (411), wherein a first arc-shaped extension plate (412) and a second arc-shaped extension plate (413) which extend outwards are symmetrically arranged on the first wheel body (411), a first gap (414) and a second gap (415) are formed between the first arc-shaped extension plate (412) and the second arc-shaped extension plate (413) and the first wheel body (411), and first teeth (416) are respectively arranged on the first gap (414) and the second gap (415);

the second driving wheel (420) comprises a second wheel body (421), second teeth (422) are arranged on the second wheel body (421), a first arc-shaped groove (423) and a second arc-shaped groove (424) which are concave inwards are arranged on the second wheel body (421), and the first arc-shaped groove (423) and the second arc-shaped groove (424) are matched with the first arc-shaped extension plate (412) and the second arc-shaped extension plate (413);

the third driving wheel (430) comprises a third wheel body (431), a third notch (432) recessed inwards is formed in the third wheel body (431), a third tooth (433) is arranged in the third notch (432), and one end, far away from the third tooth (433), of the third wheel body (431) is connected with the swinging hammer (300);

the driving motor (440) is arranged on the seat table (220), and an output shaft of the driving motor (440) is connected with the first driving wheel (410) and drives the first driving wheel (410) to rotate;

the first teeth (416) are mutually matched with the second teeth (422), the second teeth (422) are mutually matched with the third teeth (433), the radians of the first arc-shaped extension plate (412) and the second arc-shaped extension plate (413) are 90 degrees, the radians of the first arc-shaped groove (423) and the second arc-shaped groove (424) are 90 degrees, and the radian of the third notch (432) is also 90 degrees;

the second wheel body (421) is further provided with fixing rods (425), the fixing rods (425) are rod-shaped bodies, extending from the center of the second wheel body (421) to the directions of the first arc-shaped grooves (423) and the second arc-shaped grooves (424), the first driving wheels (410) are provided with first poking rods (417) for poking the fixing rods (425), the number of the first poking rods (417) is two, the third driving wheels (430) are provided with second poking rods (434) in contact with the fixing rods (425), the first poking rods (417) are vertically arranged on the first driving wheels (410), and the second poking rods (434) are vertically arranged on the third driving wheels (430);

still include hug tightly device (600), set up on ring body (100), hug tightly device (600) include:

the first expansion strip (610) is arranged in the first half ring (110), the first expansion strip (610) is arc-shaped, an upward extending gas injection pipe (611) is arranged on the upper surface of the first expansion strip (610), and a gas injection port (612) is formed in the gas injection pipe (611);

the second expansion strip (620) is arranged in the second semi-ring (120), the second expansion strip (620) is arc-shaped, and the second expansion strip (620) has the same structure as the first expansion strip (610);

the accommodating groove (630) is formed in the first half ring (110) and the second half ring (120), the accommodating groove (630) is of an arc-shaped structure, one side with a larger diameter of the accommodating groove (630) is connected with the side wall of the first expansion strip (610), one end with a smaller diameter of the accommodating groove (630) is provided with an extrusion groove (631), and when gas is injected into the first expansion strip (610), the first expansion strip (610) expands outwards through the extrusion groove (631);

the first semi-ring (110) and the second semi-ring (120) are further provided with a protection ring (640), the protection ring (640) is wrapped outside the gas injection pipe (611), and the protection ring (640) is further provided with a sealing plug (700);

the sealing plug (700) comprises:

the sealing table (710) is arranged in the gas injection port (612), the bottom of the sealing table (710) is connected with the gas injection pipe (611), the outer wall of the sealing table (710) is connected with the inner wall of the protection ring (640), and a vent (711) communicated with the gas injection is arranged in the middle of the sealing table (710);

the plug body (720) comprises an expansion section (721), a connecting section (722) and an injection section (723) which are sequentially connected, wherein the expansion section (721) passes through a vent (711) and extends into a gas injection pipe (611), a cavity (724) is formed in the expansion section (721), the outer wall of the connecting section (722) is attached to the vent (711), and the outer wall of the injection section (723) is attached to the inner wall of the sealing table (710);

the cavity (724) is provided with a channel (725), the channel (725) sequentially penetrates through the connecting section (722) and the injection section (723), the injection section (723) is provided with a spiral cover (730) for blocking the channel (725), the spiral cover (730) is in threaded connection with the injection section (723), and after the cavity (724) is expanded, the outer wall of the cavity (724) is attached to the inner wall of the gas injection pipe (611).

2. The concrete compactness detection device according to claim 1, characterized in that: the inner wall of the protection ring (640) is provided with an inner groove (740), the inner groove (740) is provided with a sealing ring (760), the connection end of the protection ring (640) and the sealing table (710) is provided with an adjusting piece (750), the section of the adjusting piece (750) is Z-shaped, and the bending part of the adjusting piece (750) is provided with the sealing ring (760).

3. A method for detecting concrete compactness by using the device for detecting concrete compactness according to claim 1, characterized in that: the method comprises the following steps:

s1, fixing the through ring body (100) on concrete to be measured, further fixing the whole detection device through the enclasping device (600),

s2, after the fixing is firm, starting power supplies of the sound sensor (510) and the display (520), starting the driving mechanism (400) to work, detecting the change of sound around the concrete by the sound sensor (510), and transmitting the change of sound to the display (520);

s3, starting a power supply of the driving motor (440), lifting the swinging hammer (300) to the highest position, and then falling down, wherein sound generated by the collision of the swinging hammer (300) on concrete is collected through the sound sensor (510);

s4, aiming at other detection points, moving the position of the detection device to change the knocking position of the swinging hammer (300), and repeating the step S3 until all detection points are detected;

and S5, judging the compactness of the detected concrete according to the detection data collected by the detection points.