CN215065542U - Sampling and sampling device for commercial concrete - Google Patents

Abstract

The utility model discloses a sampling device for commercial concrete, which comprises a sampling cylinder, wherein a plurality of clapboards are arranged in the sampling cylinder, the clapboards divide the sampling cylinder into an upper functional cavity and a lower sampling cavity, the top of the sampling cylinder is connected with a screw rod through a nut block thread, the lower end of the screw rod extends into the functional cavity and is provided with a rotary sleeve, and the rotary sleeve is connected with a rotating shaft through a key; all open the sample connection on each sample chamber lateral wall, sample connection department is equipped with the baffle of getting that can open and close the sample connection, installs the swing arm in the pivot, and the swing arm other end articulates there is the connecting rod, and the connecting rod other end with get the baffle articulated. The concrete sampling and sampling device of the utility model has simple operation and convenient sampling, and can realize the sampling of concrete in different deep layers; simultaneously, each sampling cavity has a good sealing effect, the handle has a good self-locking performance, and concrete mixing pollution of different deep layers can be prevented, so that a sampling sample is more accurate, and the detection accuracy is improved.

Description

Sampling and sampling device for commercial concrete

Technical Field

The utility model relates to a concrete material selective examination technical field, especially a commercial concrete sample selective examination device.

Background

Commercial concrete refers to concrete that is used for commercial purposes, such as being sold or purchased. The concrete is a cement concrete which is prepared by mixing cement as cementing material, sand and stone as aggregate, with water (with or without admixture and admixture) in a certain proportion, stirring, forming and curing, and is also called ordinary concrete, and is widely applied to civil engineering.

The quality of concrete is very important, so the sampling inspection of the concrete is a very important work in engineering. Current concrete sampler includes handle, interior sleeve pipe, outer tube and sample connection, and the concrete sampler is shaft-like, is equipped with the interior sleeve pipe that cup joints in the outer tube, and interior sleeve pipe upper end is equipped with the handle, and interior sleeve pipe and outer tube lower extreme all are equipped with the sample connection of equidimension.

The concrete sampler during operation drives the handle, and rotatory interior sleeve pipe and outer tube make the thief hole between them overlap, insert the concrete mixer and examine the concrete of examining, and the sample connection sample back drives the handle again, makes interior sleeve pipe and outer tube relative rotation, makes two thief holes no longer overlap, provides the concrete sampler. And driving the handle to coincide with the sampling port, and taking out the concrete to be detected in the sampling port.

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

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, a commodity concrete sampling selective examination device has been designed.

The technical scheme of the utility model is that, a commercial concrete sampling and sampling device, including the sampling tube, be equipped with a plurality of baffles in the sampling tube, the baffle divide into the function chamber of upper strata and a plurality of sampling chambers of lower floor with the sampling tube, the sampling tube top is coaxial to be installed the screw block, the inside screw thread of nut block is connected with the screw rod, the screw rod upper end is fixed with the handle, the screw rod lower extreme stretches into the function chamber and coaxial fixed mounting has the rotating sleeve, the rotating sleeve inner wall is installed with the feather key, the coaxial pivot of interlude through each baffle that is equipped with in the sampling tube, the pivot all seals the rotational connection with each baffle, the pivot is installed in the function chamber through the bearing rotation, the pivot upper end cartridge is in the rotating sleeve, the pivot upper end radially is equipped with the keyway that connects with the feather key; all opened the sample connection on each sample chamber lateral wall, sample connection department is equipped with the baffle of getting that can open and close the sample connection, and the equal fixed mounting in each sample chamber that just is located in the pivot has the swing arm, and the swing arm other end articulates there is the connecting rod, and the connecting rod other end is articulated with getting the baffle, still opens the guide way on the sample chamber lateral wall, gets the baffle and is fixed with the guide bar on the terminal surface of sampler barrel, and guide bar sliding seal installs in the guide way.

Preferably, a rubber gasket is arranged on the end face, facing the handle, of the nut block.

Preferably, a first sealing ring is installed on the partition plate, and the rotating shaft is connected with the partition plate in a sealing mode through the first sealing ring.

Preferably, a second sealing ring is installed on the inner side of the guide opening, and the guide rod is connected with the guide opening in a sliding and sealing mode through the second sealing ring.

Preferably, the edge of the end face of the taking baffle facing the sampling cylinder is provided with a sealing strip capable of sealing the sampling opening.

The utility model has the advantages that: the sampling device is provided with a plurality of sampling cavities, and the sampling baffles are driven to move by rotating the handle so as to open and close the sampling ports, so that the operation is simple, the sampling is convenient, and the sampling of concrete in different deep layers can be realized; simultaneously, each sampling cavity has a good sealing effect, the handle has a good self-locking performance, and concrete mixing pollution of different deep layers can be prevented, so that a sampling sample is more accurate, and the detection accuracy is improved.

Drawings

FIG. 1 is a schematic structural view (open state of sampling port) of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is another state diagram of the present invention (the sampling port is closed);

FIG. 5 is a cross-sectional view of FIG. 4;

in the figure, 1, a sampling tube; 2. a partition plate; 3. a functional cavity; 4. a sampling cavity; 5. a nut block; 6. a screw; 7. a handle; 8. rotating the sleeve; 9. a sliding key; 10. a rotating shaft; 11. a bearing; 12. a keyway; 13. a sampling port; 14. a baffle plate; 15. swinging arms; 16. a connecting rod; 17. a guide port; 18. a guide bar; 19. a rubber gasket; 20. a first seal ring; 21. a second seal ring; 22. a sealing strip.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, as shown in fig. 1-5: a sampling and sampling device for commercial concrete comprises a sampling cylinder 1, wherein a plurality of partition plates 2 are arranged in the sampling cylinder 1, the sampling cylinder 1 is divided into an upper functional cavity 3 and a lower sampling cavity 4 by the partition plates 2, the number of the sampling cavities 4 can be set according to actual requirements, 6 sampling cavities 4 are arranged in the sampling device in the embodiment, concrete with 6 different deep layers can be sampled, a nut block 5 is coaxially arranged at the top of the sampling cylinder 1, a screw 6 is connected with the inner side of the nut block 5 through threads, a handle 7 is fixed at the upper end of the screw 6, a rotary sleeve 8 is coaxially and fixedly arranged at the lower end of the screw 6, a sliding key 9 is arranged on the inner wall of the rotary sleeve 8, a rotary shaft 10 penetrating through each partition plate 2 is coaxially arranged in the sampling cylinder 1, the rotary shaft 10 is in sealed and rotary connection with each partition plate 2, the rotary shaft 10 is rotatably arranged in the functional cavity 3 through a bearing 11, the upper end of the rotary shaft 10 is inserted in the rotary sleeve 8, a key groove 12 connected with the sliding key 9 in a key way is radially arranged at the upper end of the rotating shaft 10; all opened on the 4 lateral walls of each sample chamber has sample connection 13, sample connection 13 department is equipped with the baffle 14 of getting that can open and close sample connection 13, the pivot 10 is gone up and is located the equal fixed mounting in each sample chamber 4 and has swing arm 15, the swing arm 15 other end articulates there is connecting rod 16, the connecting rod 16 other end with get baffle 14 articulated, still open guide opening 17 on the 4 lateral walls of sample chamber, it is fixed with guide bar 18 on the terminal surface of baffle 14 orientation sampler barrel 1 to get, 18 sliding seal of guide bar install in guide opening 17.

A rubber gasket 19 is mounted on the end surface of the nut block 5 facing the handle 7. Through the arrangement of the rubber gasket 19, when the handle 7 is rotated, the handle 7 drives the screw rod 6 to rotate downwards, so that the handle 7 is lowered to be in pressing contact with the rubber gasket 19, when the handle 7 presses the rubber gasket 19, the sampling opening 13 is just sealed by the baffle plate 14, the rubber gasket 19 plays a role in limiting the position of the handle 7 and prompting that the sampling opening 13 is sealed by the baffle plate 14, meanwhile, when the handle 7 presses the rubber gasket 19, the pressure between the handle 7 and the rubber gasket 19 is increased, the static friction force is also increased, the torsion of reversely rotating the handle 7 is also increased, so that the handle 7 can be fixed, the position of the handle 7 is ensured to be unchanged, the angle of the rotating shaft 10 is ensured to be unchanged, the sampling opening 13 can be always sealed by the baffle plate 14 without large external force, thereby preventing concrete with other impurities or other depths from entering the sampling opening 13 and preventing the concrete from leaking from the sampling opening 13, the sampling precision is ensured.

The partition plate 2 is provided with a first sealing ring 20, and the rotating shaft 10 is hermetically connected with the partition plate 2 through the first sealing ring 20. Through setting up first sealing washer 20, can be when guaranteeing the normal pivoted of pivot 10, the concrete mixing in each sample chamber 4 is avoided to seal off 2 and pivot 10.

A second sealing ring 21 is arranged on the inner side of the guide opening 17, and the guide rod 18 is connected with the guide opening 17 in a sliding and sealing mode through the second sealing ring 21. Through setting up second sealing washer 21, can seal guide bar 18 and guide way 17, avoid impurity to get into sample chamber 4 by guide way 17, guarantee the sample selective examination precision.

The edge of the end face of the sampling tube 1 facing the sampling baffle 14 is provided with a sealing strip 22 which can seal the sampling opening 13. The cladding of sealing strip 22 is in the sample connection 13 periphery, through setting up sealing strip 22, can seal sample connection 13, avoids impurity to get into sample connection 13, avoids the interior muddy earth of sample chamber 4 to spill by sample connection 13.

The working principle of the embodiment is as follows: when the sampling device is used, the sampling cylinder 1 is inserted into concrete to be tested, the upper end of the sampling cylinder 1 is held by one hand, the handle 7 is rotated by the other hand by approximately 90 degrees, the handle 7 drives the screw rod 6 to rotate in the nut block 5, when the sampling device is rotated, the handle 7 compresses the rubber gasket 19, a large torque force needs to be applied, the screw rod 6 drives the rotating shaft 10 to rotate through the rotating sleeve 8 and the sliding key 9, the rotating shaft 10 drives the swing arm 15 and the connecting rod 16 in each sampling cavity 4 to synchronously move, the rotating shaft 10 drives the baffle plate 14 to linearly move transversely away from the sampling port 13 under the guiding action of the guide rod 18 and the guide port 17, as shown in fig. 1, at the moment, each sampling port 13 is opened, and concrete at different levels enters the sampling cavities 4 through the sampling ports 13;

then the handle 7 is rotated reversely, the handle 7 drives the screw rod 6 to rotate downwards in the nut block 5 until the handle 7 is pressed on the rubber gasket 19, the position is kept fixed, as shown in figure 4, at this time, the baffle plate 14 is taken out and reset to close the sampling port 13;

can carry handle 7 to take out sampler barrel 1 afterwards, because the threaded connection of nut piece 5 and screw rod 6 has certain auto-lock nature, in addition handle 7 compresses tightly with rubber packing ring 19 and has certain static friction power, can restrict handle 7 and rotate 1 relative sampler barrel, thereby restriction pivot 10 rotates, make and get baffle 14 and stably seal sample connection 13, realize the sample to the concrete of different deep layers, can prevent different deep concrete mixing pollution simultaneously, make the sample more accurate, the accuracy of detection has been improved.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims (5)

1. The utility model provides a commodity concrete sampling selective examination device, including sampler barrel (1), a serial communication port, be equipped with a plurality of baffles (2) in sampler barrel (1), baffle (2) divide into function chamber (3) on upper strata and a plurality of sample chamber (4) on lower floor with sampler barrel (1), coaxial arrangement has nut piece (5) at sampler barrel (1) top, nut piece (5) inboard threaded connection has screw rod (6), the screw rod (6) upper end is fixed with handle (7), the lower extreme of screw rod (6) stretches into function chamber (3) and coaxial fixed mounting has rotatory sleeve (8), sliding key (9) are installed to rotatory sleeve (8) inner wall, coaxial pivot (10) that alternate each baffle (2) that are equipped with in sampler barrel (1), pivot (10) and each baffle (2) all sealed rotation connection, pivot (10) are rotated through bearing (11) and are installed in function chamber (3), the upper end of the rotating shaft (10) is inserted into the rotating sleeve (8), and a key groove (12) connected with the sliding key (9) is radially arranged at the upper end of the rotating shaft (10); all opened sample connection (13) on each sample chamber (4) lateral wall, sample connection (13) department is equipped with and opens and close getting baffle (14) of sample connection (13), equal fixed mounting has swing arm (15) in each sample chamber (4) on pivot (10) and being located, swing arm (15) other end articulates there is connecting rod (16), connecting rod (16) other end with get baffle (14) articulated, it has guide way (17) still to open on sample chamber (4) lateral wall, it is fixed with guide bar (18) on the terminal surface of baffle (14) orientation sampler barrel (1) to get, guide bar (18) sliding seal installs in guide way (17).

2. The commercial concrete sampling and sampling device according to claim 1, characterized in that a rubber gasket (19) is mounted on the end face of the nut block (5) facing the handle (7).

3. The commercial concrete sampling and sampling device according to claim 1, wherein a first sealing ring (20) is mounted on the partition plate (2), and the rotating shaft (10) is connected with the partition plate (2) in a sealing manner through the first sealing ring (20).

4. The commercial concrete sampling and sampling device as claimed in claim 1, wherein a second sealing ring (21) is installed inside the guide port (17), and the guide rod (18) is connected with the guide port (17) in a sliding and sealing mode through the second sealing ring (21).

5. The commercial concrete sampling and sampling device according to claim 1, characterized in that the edge of the end face of the sampling baffle (14) facing the sampling cylinder (1) is provided with a sealing strip (22) capable of sealing the sampling opening (13).

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