CN213714765U

CN213714765U - Sampling device for concrete quality detection

Info

Publication number: CN213714765U
Application number: CN202022422343.0U
Authority: CN
Inventors: 蒋旺明; 詹义龙; 梁文丰
Original assignee: Guizhou Zunyi Jian'an Concrete Co ltd
Current assignee: Guizhou Zunyi Jian'an Concrete Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-16
Anticipated expiration: 2030-10-27

Abstract

The scheme discloses a sampling device for concrete quality detection in the field of concrete auxiliary production equipment, which comprises a shell, a pushing part and a plurality of sampling cylinders, wherein a sliding opening parallel to the axis direction of the shell is formed in the shell; the pushing component comprises a pressing block and a fixed sleeve, a connecting rod is connected between the pressing block and the fixed sleeve, the connecting rod penetrates through the sliding opening and is in sliding connection with the sliding opening, the pressing block is positioned outside the shell, a spring is sleeved outside the connecting rod, and the spring is positioned between the pressing block and the shell; the sampling opening is opened at the middle part of the sampling tube, and the external screw thread is arranged at the middle part of the sampling tube, the tail end of the adjacent sampling tube is connected with the middle part by screw thread, and the sampling opening is exposed to the outside and is positioned at the last sampling tube and connected with the fixed sleeve by screw thread. The use of a sampling tube in this scheme corresponds sampling test once, has avoided cross sampling or the pollution problem that brings because of the sample connection closes the dislocation among the prior art, has ensured the accuracy of testing result.

Description

Sampling device for concrete quality detection

Technical Field

The utility model belongs to concrete auxiliary production equipment field, in particular to sampling device is used in concrete quality testing.

Background

In modern engineering and construction work, the quality of concrete is very important, so to the indispensable working link in the sample laboratory engineering of concrete, through each item performance data that detects, can real-time detection concrete quality and find the quality problem of solving the concrete before transporting to the construction site.

The existing concrete sampler is rod-shaped and comprises a handle, an inner sleeve and an outer sleeve, wherein the inner sleeve is arranged in the outer sleeve, the handle is arranged at the upper end of the inner sleeve, and the lower ends of the inner sleeve and the outer sleeve are provided with sampling ports with the same size. When the concrete sampler is used for sampling, the handle is rotated, then the inner sleeve and the outer sleeve rotate relatively, sampling holes of the inner sleeve and the outer sleeve are overlapped, the concrete stirrer is inserted into concrete to be detected, the concrete enters the inner sleeve from the sampling port, then the handle is rotated again, the sampling ports on the inner sleeve and the outer sleeve are staggered with each other and are not overlapped, the concrete sampler is taken out, the sampling port is overlapped again, and the concrete is taken out from the sampling port.

However, when the concrete sampler is inserted into concrete, the sampling ports of the outer sleeve and the inner sleeve cannot be completely closed in a staggered manner due to the action force of the cement on the outer sleeve during insertion or extraction, so that concrete on other layers pollutes the sample, and the detection result of the concrete sample is not standard.

SUMMERY OF THE UTILITY MODEL

The utility model provides a concrete quality detects uses sampling device to solve the problem that current concrete sampler caused surface concrete pollution sample easily.

The sampling device for concrete quality detection in the scheme comprises a shell, a pushing part and a plurality of sampling cylinders, wherein the shell is tubular, and a sliding opening parallel to the axis direction of the shell is formed in the shell; the pushing component comprises a pressing block and a fixed sleeve, a connecting rod is connected between the pressing block and the fixed sleeve, the connecting rod penetrates through the sliding port and is in sliding connection with the sliding port, the fixed sleeve is located in the shell, the pressing block is located outside the shell, a spring is sleeved outside the connecting rod and located between the pressing block and the shell, and a stop piece is arranged between the connecting rod and the inner wall of the shell;

the front end of a sampling tube is a blind end, the middle part of the sampling tube is close to the tail end of the sampling tube, a sampling port is formed in the middle part of the sampling tube, the middle part of one of the sampling tubes between the adjacent sampling tubes is close to the front end of the sampling tube and is detachably connected with the tail end of the other sampling tube, the tail end and the middle part of the adjacent sampling tube are in threaded connection, the sampling port is exposed to the outside, and the sampling port is located at the last sampling tube and.

The working principle and the beneficial effects of the scheme are as follows: in this scheme between the adjacent sampler barrel can dismantle the connection, and a plurality of the sampler barrel is arranged in the casing before using, when needs are taken a sample to the concrete, exerts pressure to the direction of perpendicular to casing axis according to the briquetting, and the spring compression, and the connecting rod is to the inside removal of casing, and then the release disconnection between connecting rod and the shells inner wall, promotes to the parallel direction of the axis of casing and presses the briquetting, drives the sampler barrel on fixed sleeve and the fixed sleeve and removes to the casing outside.

When a sampling tube is moved out, the sampling tube can be inserted into concrete for sampling. Because the middle part of the sampling tube is provided with the sampling port, namely, when the sampling port on the sampling tube passes through the concrete, the concrete enters the sampling tube from the sampling port, and then the sampling tube is taken out of the concrete, so that the concrete sampling is completed once. And the sampling cylinder with the concrete is taken down from the next sampling cylinder, and then the sampling cylinder with the concrete can be taken down and taken to an inspection room for detection.

The use of a sampling tube in this scheme corresponds sampling test once, has avoided cross sampling or the pollution problem that brings because of the sample connection closes the dislocation among the prior art, has ensured the accuracy of testing result.

Furthermore, the retainer includes card strip and a plurality of spacing tooth, a plurality of spacing tooth is located the inner wall of casing and arrange the setting along its parallel direction of axis, the card strip set up on the connecting rod and with spacing tooth joint. Because a plurality of sampler barrel is in the same place through threaded connection's mode stack, when taking a sample, take a sample at every turn outside promoting a sampler barrel to the casing, because the concrete can have the effort in the opposite direction to the sampler barrel when taking a sample, inevitably lead to the sampler barrel to slide in to the casing, it is inconvenient to lead to taking a sample, so set up spacing tooth and draw bail and carry out the joint, when sliding outside to the casing, the connecting rod of connecting the draw bail receives pressure and makes the joint disconnection between draw bail and the spacing tooth, so that promote the sampler barrel. After a sampler barrel roll-off casing, loosen the pressing block, then under the effect that the spring resets, the card strip joint is in spacing tooth again, and then avoids the sampler barrel to retract.

Furthermore, the limiting teeth are right-angled triangles, and the thinner ends of the limiting teeth are close to the clamping strips. When pushing the sampler barrel outward to the casing, the card strip can slide to the outside direction of casing along the inclined plane of spacing tooth, and then the card strip is supported by the thick one end of spacing tooth when no longer promoting the press block, avoids returning back according to the press block, and then avoids fixed sleeve to return and contracts, and this scheme is compared in basic scheme, and the cooperation result of use of card strip and spacing tooth is better.

Furthermore, a plurality of spacing tooth includes two, and is located the both sides of sliding opening respectively. The clamping is more stable, and the fixed sleeve is prevented from deflecting.

Further, the end-to-end connection of sampler barrel has the connecting block of "U" shape, and the inner wall of connecting block is equipped with the internal thread, and the sampler barrel middle part is close to its front end department and is equipped with the external screw thread, realizes dismantling the connection through the internal thread on the connecting block and the external screw thread on the sampler barrel between the adjacent sampler barrel. The U-shaped tail end enables the middle part and the tail end of the sampling cylinder to be separated, and the front end of the latter sampling cylinder is prevented from being stained with a sample in the middle part of the former sampling cylinder.

Further, a handle is arranged at one end of the shell, which is close to the tail end of the sampling tube. The handle can be designed according to the comfort level of holding by a human body, and the use is more convenient.

Further, the handle is a telescopic handle. The telescopic handle is convenient for adjust the length of the handle according to the distance between a worker and concrete, so that a concrete sample can be conveniently taken.

Further, the edge that the sample connection at sampling tube middle part is close to its front end is connected with the guide piece, and the guide piece is to the direction slope of deviating from the sampling tube axis, and the guide piece is half to be covered on the sample connection. Such a guide piece arrangement enables the guide piece to scrape the concrete when the sampling tube is removed from the concrete, ensuring that the amount of sample taken is sufficient compared to the case where no guide piece is present.

Drawings

FIG. 1 is a plan view of a sampling device for concrete quality inspection according to example 1 of the present invention;

fig. 2 is a front sectional view of a sampling device for concrete quality inspection according to embodiment 1 of the present invention;

FIG. 3 is a front sectional view of a sampling cylinder in a sampling apparatus for concrete quality inspection according to example 1 of the present invention;

fig. 4 is a front sectional view of a sampling device for concrete quality inspection in accordance with embodiment 1 of the present invention in one of its operating states.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: sampling tube 1, sampling tube front end 101, sample connection 102, sampling tube middle part 103, connecting block 104, guide strip 105, casing 2, sliding port 3, pressing block 4, handle 5, spacing tooth 6, card strip 7, connecting rod 8, spring 9, fixed sleeve 10.

Example 1 is substantially as shown in figures 1, 2 and 3 of the accompanying drawings: concrete quality testing uses sampling device, including casing 2, promotion part and a plurality of sampling tube 1, casing 2 comprises a pipe form by two semicircle nest of tubes, hinge connection is passed through to one side of two semicircle pipes, the opposite side passes through the buckle and connects (hinge connection mode and buckle connection mode all belong to conventional technology in this structure, no longer give unnecessary details specific component form here, in the figure not shown), sampling tube 1 is packed into to the casing to this kind of connection mode purpose of two semicircle pipes, set up sliding opening 3 parallel rather than the axis direction on the casing 2.

The pushing component comprises a pressing block 4 and a fixing sleeve 10, a connecting rod 8 is fixedly connected between the pressing block 4 and the fixing sleeve 10, the connecting rod 8 penetrates through a sliding opening 3 and is in sliding connection with the sliding opening 3, the fixing sleeve 10 is located in the shell 2, the pressing block 4 is located outside the shell 2, a spring 9 is sleeved outside the connecting rod 8, the spring 9 is located between the pressing block 4 and the shell 2, and a stopping piece is arranged between the connecting rod 8 and the inner wall of the shell 2.

The stop piece comprises a clamping strip 7 and a plurality of right-angled triangle limiting teeth 6, and the limiting teeth 6 are divided into two rows and are respectively positioned at two sides of the sliding opening 3; spacing tooth 6 sets up in the inner wall of casing 2 and arranges the setting along its axis parallel direction, and the right-angle side of spacing tooth 6 and the inner wall connection of casing 2, and card strip 7 sets up in connecting rod 8 and with spacing tooth 6 joint.

Sampling tube front end 101 is the cecum and is the cone form, so that can be smooth insert sampling tube 1 and take a sample in the concrete, sampling tube end-to-end connection has the connecting block 104 of "U" shape, the inner wall of connecting block 104 is equipped with the internal thread, sampling tube middle part 103 is close to sampling tube terminal department and has seted up sample connection 102, and sampling tube middle part 103 is close to sampling tube front end 101 department and is equipped with the external thread, through the connecting block 104 of one of them sampling tube 1 terminal and the sampling tube middle part 103 threaded connection of another sampling tube 1 and sample connection 102 expose in the external world between the adjacent sampling tube 1, be located the terminal connecting block 104 and the fixed sleeve 10 threaded connection of last sampling tube 1.

The edge of the sampling opening 102 of the middle part 103 of the sampling tube close to the front end 101 of the sampling tube is connected with a guide piece 105, the guide piece 105 inclines towards the direction deviating from the axis of the sampling tube 1, and the guide piece 105 is covered on the sampling opening 102 in half.

The end of the housing 2 close to the end 104 of the sampling tube 1 is provided with a telescopic handle 5.

Every independent sampling tube 1 can disposable in this scheme, therefore sampling tube 1 wholly can adopt to have certain plastics material to make, saves certain cost. Or can be made of materials with better material quality and can be reused after being cleaned.

Example 2 is different from example 1 in that the housing 2 has a square tube shape.

Example 3 is different from example 1 in that the guide piece 105 is not provided at the sampling port 102.

Taking the example 1 as an example, the specific implementation process of the scheme is as follows: as shown in fig. 4, adjacent sampling barrels 1 are connected through threads in the scheme, and the sampling barrels 1 are located in the shell 2 before use, when concrete is required to be sampled, the pressing block 4 is pressed in the direction perpendicular to the axis of the shell 2, the spring 9 is compressed, the connecting rod 8 moves towards the inside of the shell 2, the connection of the connecting rod 8 and the stop piece between the inner wall of the shell 2 is broken, the pressing block 4 is pushed in the direction parallel to the axis of the shell 2, and the fixed sleeve 10 and the sampling barrels 1 on the fixed sleeve 10 are driven to move towards the outside of the shell 2.

When a sampling tube 1 is moved out, the sampling tube 1 can be inserted into concrete for sampling. Because the sampling tube middle part 103 is provided with the sampling port 102, namely, when the sampling port 102 on the sampling tube 1 passes through the concrete, the concrete enters the sampling tube 1 from the sampling port 102, and then the sampling tube 1 is taken out of the concrete, so that the concrete sampling is completed once. The sampling cylinder 1 with concrete is spirally rotated from the next sampling cylinder 1, and then the sampling cylinder 1 with concrete can be taken down and independently taken to an inspection room for detection.

In the scheme, the use of one sampling tube 1 corresponds to one-time sampling detection, so that the pollution problem caused by the fact that the sampling port 102 cannot be completely closed in a staggered manner in the prior art or in a crossed manner is avoided, and the accuracy of a detection result is ensured.

Claims

1. Concrete quality testing uses sampling device, its characterized in that: the sampler comprises a shell, a pushing part and a plurality of sampling cylinders, wherein the shell is tubular, and is provided with a sliding opening parallel to the axial direction of the shell; the pushing component comprises a pressing block and a fixed sleeve, a connecting rod is connected between the pressing block and the fixed sleeve, the connecting rod penetrates through the sliding port and is in sliding connection with the sliding port, the fixed sleeve is located in the shell, the pressing block is located outside the shell, a spring is sleeved outside the connecting rod and located between the pressing block and the shell, and a stop piece is arranged between the connecting rod and the inner wall of the shell;

2. The sampling device for concrete quality inspection according to claim 1, characterized in that: the retainer includes card strip and a plurality of spacing tooth, a plurality of spacing tooth is located the inner wall of casing just arranges the setting along its parallel direction of axis, the card strip set up on the connecting rod and with spacing tooth joint.

3. The sampling device for concrete quality inspection according to claim 2, characterized in that: the limiting teeth are right-angled triangles, and the thinner ends of the limiting teeth are close to the clamping strips.

4. The sampling device for concrete quality inspection according to claim 3, characterized in that: the plurality of limiting teeth comprise two rows and are respectively positioned at two sides of the sliding opening.

5. The sampling device for concrete quality inspection according to claim 4, wherein: the end-to-end connection of sampling tube has the connecting block of "U" shape, and the inner wall of connecting block is equipped with the internal thread, and the sampling tube middle part is close to its front end department and is equipped with the external screw thread, realizes dismantling the connection through the internal thread on the connecting block and the external screw thread on the sampling tube between the adjacent sampling tube.

6. The sampling device for concrete quality inspection according to claim 5, wherein: and a handle is arranged at one end of the shell, which is close to the tail end of the sampling tube.

7. The sampling device for concrete quality inspection according to claim 6, wherein: the handle is a telescopic handle.

8. The sampling device for concrete quality inspection according to any one of claims 1 to 7, characterized in that: the edge that the sample connection at sampling tube middle part is close to its front end is connected with the guide piece, and the guide piece is to the direction slope of deviating the sampling tube axis, and the guide piece partly covers on the sample connection.