CN215339031U - Bored concrete pile hole bottom mud sampling device of high leakproofness - Google Patents
Bored concrete pile hole bottom mud sampling device of high leakproofness Download PDFInfo
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- CN215339031U CN215339031U CN202120792812.XU CN202120792812U CN215339031U CN 215339031 U CN215339031 U CN 215339031U CN 202120792812 U CN202120792812 U CN 202120792812U CN 215339031 U CN215339031 U CN 215339031U
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Abstract
The utility model relates to a bored concrete pile hole bottom mud sampling device of high leakproofness, belong to the sampling equipment field, it includes sampler barrel and lifting rod, lifting rod is connected with the roof of sampler barrel, the introduction port has been seted up to the bottom of sampler barrel, introduction port department is equipped with the shutoff subassembly that is used for the shutoff introduction port, the shutoff subassembly includes shutoff piece and joint spare, the joint spare includes joint piece and first elastic component, the joint groove that is used for making the joint piece pass through is offered to the lateral wall of shutoff piece, first elastic component is used for driving the joint piece and moves in or shift out in the joint groove, the one end and the joint piece fixed connection of first elastic component, the other end is the inner wall fixed connection of sampler barrel, the one end that first elastic component was kept away from to the joint piece is the hemisphere, the port radius angle in joint groove. The side wall of the bottom end of the sampling tube is communicated with a sampling tube. The method has the effect of reducing the possibility of mixing the slurry on the upper part of the bored concrete pile hole in the sampling cylinder.
Description
Technical Field
The application relates to the field of sampling equipment, in particular to a high-sealing bored concrete pile hole bottom slurry sampling device.
Background
The cast-in-place pile is formed by utilizing methods such as mechanical drilling and the like on a specified pile position of a construction site, a steel wire cage and the cast-in-place concrete are placed in the pile hole to form the pile, and after the pile hole is formed, slurry is contained in the bottom wall of the pile hole, but the relative density, sand content and viscosity of the slurry in the pile hole are small, otherwise, the cast-in-place pile is not beneficial to normal function, so that the slurry at the bottom of the pile hole needs to be sampled before the concrete is cast in the pile hole, and the subsequent detection of the slurry is carried out.
The existing referential Chinese patent with the publication number of CN205449564U discloses a bored concrete pile hole bottom slurry sampling device, which comprises a sampling barrel, a sealing cover and a traction piece fixedly connected with the sealing cover, wherein the sampling barrel comprises a sampling chamber, the sealing cover is positioned in the sampling chamber and used for plugging a sampling port on the top wall of the sampling barrel, and the traction piece is connected with the top wall of the sealing cover.
In view of the above-mentioned related technologies, the inventor believes that there is a steel reinforcement cage in the bored concrete pile hole, and if the hole bottom slurry sampling device moves to the bottom of the bored concrete pile hole, the uneven position of the steel reinforcement cage can block the normal falling of the sampling barrel, causing the cover to displace toward the bottom of the sampling barrel under the action of gravity, so that the slurry on the upper portion of the bored concrete pile hole is mixed with the bottom slurry to be sampled, resulting in impure sampling.
SUMMERY OF THE UTILITY MODEL
In order to reduce the possibility that the mud on the upper part of a bored concrete pile hole is mixed in the sampling cylinder, the application provides a bored concrete pile hole bottom mud sampling device with high sealing performance.
The application provides a pair of bored concrete pile hole bottom mud sampling device of high leakproofness adopts following technical scheme:
a high-sealing-performance bored concrete pile hole bottom mud sampling device comprises a sampling cylinder and a lifting rod, wherein the lifting rod is connected with the top wall of the sampling cylinder, a sample inlet is formed in the bottom end of the sampling cylinder, a plugging assembly used for plugging the sample inlet is arranged at the sample inlet and comprises a plugging piece, a clamping piece and a balancing weight, the clamping piece comprises a clamping block and a first elastic piece, a clamping groove used for enabling the clamping block to pass through is formed in the side wall of the plugging piece, the first elastic piece is used for driving the clamping block to move in or out of the clamping groove, one end of the first elastic piece is fixedly connected with the clamping block, the other end of the first elastic piece is fixedly connected with the inner wall of the sampling cylinder, one end, away from the first elastic piece, of the clamping block is hemispherical, and the port of the clamping groove is chamfered; be connected with the haulage rope between balancing weight and the shutoff piece, the one end of haulage rope and the fixed connection of balancing weight, the other end and shutoff piece fixed connection, the bottom lateral wall intercommunication of sampling tube has the sampling tube.
By adopting the technical scheme, when bottom mud needs to be extracted from the bored concrete pile hole, the balancing weight and the sampling cylinder are sequentially placed into the bored concrete pile hole, and in the process that the balancing weight and the sampling cylinder move towards the bottom of the bored concrete pile hole, the balancing weight exerts tension on the traction rope under the action of self gravity to tighten the traction rope; when the counterweight block moves to the bottom of the hole of the cast-in-place pile, an operator holds the lifting rod to vertically push the lifting rod towards the bottom of the hole of the cast-in-place pile, so that the lifting rod drives the sampling cylinder to vertically impact the top wall of the counterweight block, the plugging member moves towards the direction far away from the sample inlet under the action of impact force, so that the clamping block moves out of the clamping groove, the first spring is compressed, the plugging member does not plug the feed inlet any more, and slurry at the bottom of the hole of the cast-in-place pile enters the material taking cylinder; then through the direction pull lifting rod to keeping away from bored concrete pile hole bottom, make lifting rod drive get the material section of thick bamboo and shift out the bored concrete pile, shutoff piece blocks the introduction port once more under the pulling force effect of balancing weight, and the joint piece gets into in the joint groove, makes the difficult follow feeding department outflow of mud in the sampling tube.
Optionally, the plugging piece includes plugging post and connecting block, and the external diameter of plugging post is the same with the aperture of introduction port, and the top and the connecting block fixed connection of plugging post, the lateral wall that connecting block and joint piece are connected is the inclined plane, and inclines to the one side that is close to the introduction port by the one side of keeping away from the introduction port.
Through adopting above-mentioned technical scheme, after the joint piece shifts out the joint groove, mud is difficult for getting into the joint groove through the diapire of connecting block and shutoff joint groove, helps the permanent use of joint spare.
Optionally, the top of the sampling tube is connected with a protection tube for accommodating the connecting block, and a port of the protection tube, which is far away from the top wall of the sampling tube, is close to the top of the connecting block.
Through adopting above-mentioned technical scheme, when the connecting block drives the shutoff post and removes to the direction of keeping away from the introduction port, the connecting block can get into a protective barrel, and in the difficult entering protective barrel of mud, so protective barrel can further reduce mud get into in the joint groove and the possibility of shutoff joint groove.
Optionally, the bottom of the plugging column is flush with the sample inlet of the sampling tube.
By adopting the technical scheme, the possibility that the plugging column automatically keeps away from the sample inlet due to the fact that the plugging column touches foreign objects is reduced, and the effect of plugging the sample inlet by the plugging column is improved.
Optionally, a second elastic piece for applying force to the connecting block is arranged in the protective cylinder, one end of the second elastic piece is connected with the top wall of the sampling cylinder, and the other end of the second elastic piece is connected with the connecting block.
Through adopting above-mentioned technical scheme, when the haulage rope is in the relaxation state, the weak elasticity of second elastic component also can help making the joint piece be difficult for shifting out from the joint groove.
Optionally, the outside cover of first elastic component is equipped with the fender rod, and the fender rod is the telescopic link, the stiff end of fender rod and the inner wall fixed connection of sampler barrel, the expansion end and the joint piece fixed connection of fender rod.
Through adopting above-mentioned technical scheme, the fender rod neither influences the normal work of joint spare, still can play the guard action to first elastic component, makes mud be difficult for with first elastic component direct contact, and then has slowed down the damage of first elastic component.
Optionally, the bottom of the sampling tube is in a shape of a throat.
Through adopting above-mentioned technical scheme, the throat form helps making the sampling bucket downthehole quick travel of bored concrete pile, helps improving the convenience that the mud was got to the sampling bucket.
Optionally, the lifting rod comprises a connecting cylinder, a first pulling rod and a second pulling rod, one end of the connecting cylinder is fixedly connected with the top wall of the sampling cylinder, the other end of the connecting cylinder is sleeved on the outer wall of the first pulling rod and is in sliding connection with the first pulling rod, the second pulling rod is inserted in the first pulling rod and is in sliding connection with the second pulling rod, and the connecting cylinder and the first pulling rod are both provided with fixing pieces.
By adopting the technical scheme, when the drawing rod is not used, the first inserting rod slides to the inside of the telescopic cylinder, the second inserting rod slides to the first inserting rod, and the first inserting rod and the second inserting rod are fixed through the fixing piece, so that the drawing rod is simple and convenient, and the space is saved.
To sum up, the application comprises the following beneficial technical effects:
1. the plugging piece and the clamping piece are arranged at the sample inlet, and the clamping piece can fix the plugging piece, so that the plugging piece can always seal the sample inlet in the vertical moving process of the sampling cylinder, thereby reducing the possibility that soil at the top end in the bored concrete pile hole enters the sampling cylinder and being beneficial to the sampling accuracy of the sampling cylinder;
2. the top wall of the sampling cylinder is connected with the second elastic piece, and the weak elasticity of the second elastic piece can further prevent the plugging piece from being easily moved away from the sample inlet under the non-manual action, so that the possibility that soil at the top end in the bored concrete pile hole enters the sampling cylinder is reduced;
3. through the roof at the sampler barrel setting protection section of thick bamboo, when the vertical rebound of connecting block, the connecting block can get into protection section of thick bamboo in, reduces mud and gets into the joint inslot and the possibility in shutoff joint groove, helps making joint spare exert effect lastingly.
Drawings
Fig. 1 is a schematic perspective view illustrating a high-sealing bored concrete pile hole bottom slurry sampling device according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of a high-sealing bored concrete pile hole bottom slurry sampling device according to an embodiment of the present application;
fig. 3 is an enlarged view of a portion a of fig. 2.
Description of reference numerals: 1. a sampling tube; 11. a sample inlet; 2. lifting a pull rod; 21. a connecting cylinder; 22. a first drawing rod; 23. a second drawing rod; 3. a plugging component; 31. a blocking member; 311. plugging the column; 312. connecting blocks; 32. a clamping piece; 321. a clamping block; 322. a first spring; 33. a balancing weight; 4. a clamping groove; 5. a hauling rope; 6. a sampling tube; 61. a pipe cap; 7. a protective cylinder; 8. a guard bar; 81. a telescopic cylinder; 82. inserting the rod; 9. a second spring; 10. and (5) tightening the bolts.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses bored concrete pile hole bottom mud sampling device of high leakproofness. Referring to fig. 1 and fig. 2, bored concrete pile hole bottom mud sampling device includes sampler barrel 1 and lifting rod 2, lifting rod 2 is connected with the roof of sampler barrel 1 outside, introduction port 11 has been seted up to sampler barrel 1's bottom, introduction port 11 department is equipped with the shutoff subassembly 3 that is used for shutoff introduction port 11, shutoff subassembly 3 includes shutoff piece 31, joint 32 and balancing weight 33, shutoff piece 31 is located introduction port 11 department, joint 32 is located sampler barrel 1's inside and is used for making shutoff piece 31 open and close introduction port 11, be connected with haulage rope 5 between balancing weight 33 and the shutoff piece 31, the one end of haulage rope 5 is fixed with the ligature of balancing weight 33, the other end is connected with shutoff piece 31, the bottom lateral wall intercommunication of sampler barrel 1 has sampling tube 6.
When bottom mud needs to be extracted from a bored concrete pile hole, an operator sequentially puts a balancing weight 33 and a sampling cylinder 1 into the bored concrete pile hole, then holds a lifting rod 2, and in the process that the balancing weight 33 and the sampling cylinder 1 move towards the bottom of the bored concrete pile hole, the balancing weight 33 exerts a pulling force on a traction rope 5 under the action of self gravity to tighten the traction rope 5, the traction rope 5 exerts a pulling force on a plugging piece 31 to seal the plugging piece 31 at a sample inlet 11, the sample inlet 11 is not easy to open under the action of non-human force due to the plugging piece 31 under the action of a clamping piece 32, at the moment, even if the balancing weight 33 slows down the falling speed of the balancing weight 33 due to passing through the inner wall of the rugged bored concrete pile hole to loosen the traction rope 5, but the sample inlet 11 is still plugged by the plugging piece 31, so that soil in the area close to the top end in the bored concrete pile hole cannot enter the sampling cylinder 1, which is beneficial to reducing the entering of the soil at the top end in the bored concrete pile hole into the sampling cylinder 1, the sampling accuracy of the sampling cylinder 1 is facilitated.
When the counterweight block 33 moves to the bottom of the bored concrete pile hole, an operator holds the lifting rod 2 to vertically push the lifting rod 2 towards the bottom of the bored concrete pile hole, so that the lifting rod 2 drives the sampling cylinder 1 to vertically impact the top wall of the counterweight block 33, at the moment, the clamping piece 32 can release the fixation of the plugging piece 31 under the action of the impact force, so that the plugging piece 31 does not block the sample inlet 11 any more, so that slurry at the bottom of the bored concrete pile hole enters the sampling cylinder 1, then the lifting rod 2 is pulled towards the direction far away from the bottom of the bored concrete pile hole, so that the lifting rod 2 drives the sampling cylinder 1 to move out of the bored concrete pile, the plugging piece 31 blocks the sample inlet 11 again under the action of the counterweight block 33, and the clamping piece 32 fixes the plugging piece 31 again, so that the slurry in the sampling cylinder 1 is not easy to flow out from a feeding position; the mud in the sampling tube 1 can flow out through the sampling tube 6 under the action of self gravity for subsequent detection, and the whole sampling process is simple and convenient.
As shown in FIG. 1, the sampling tube 1 is a vertical cylinder, the bottom end of the sampling tube 1 is set to be in a tapered shape, the sampling tube 6 is located near the sample inlet 11, and a tube cap 61 is screwed on the port of the sampling tube 6 far from the sampling tube 1. The lifting rod 2 comprises a connecting cylinder 21, a first drawing rod 22 and a second drawing rod 23, one end of the connecting cylinder 21 is welded and fixed with the top wall of the sampling cylinder 1, the other end of the connecting cylinder is sleeved on the outer wall of the first drawing rod 22 and is in vertical sliding connection with the first drawing rod 22, the second drawing rod 23 is inserted in the first drawing rod 22 and is in vertical sliding connection with the second drawing rod 23, fixing pieces are arranged on the outer wall of the connecting cylinder 21 and the outer wall of the first drawing rod 22, each fixing piece is a fastening bolt 10, and the fastening bolts 10 are in threaded connection with the connecting cylinder 21 and can abut against the first drawing rod 22 after penetrating through the connecting cylinder 21; the fastening bolt 10 is connected with the first drawing rod 22 by screw thread and can pass through the first drawing rod 22 and then abut against the second drawing rod 23.
When the sampling device is used, the necking sampling cylinder 1 is easy to move in the process that the balancing weight 33 and the sampling cylinder 1 vertically fall, and after the balancing weight 33 or the sampling cylinder 1 is clamped by a bulge in a cast-in-place pile, an operator can manually apply force to the lifting rod 2, so that the lifting rod 2 can push the sampling cylinder 1 to the bottom of a hole of the cast-in-place pile, the sampling cylinder 1 quickly falls to the bottom of the hole of the cast-in-place pile, and the operator can conveniently carry out the process of moving and taking mud in the hole of the cast-in-place pile; when the sampling tube 1 is not used any more, the first pull rod 22 can slide into the telescopic tube 81, the first pull rod 22 is fixed through the fastening bolt 10, the second pull rod 23 slides into the first pull rod 22, and the second pull rod 23 is fixed through the fastening bolt 10, so that the space is saved; the tube cap 61 is screwed with the sampling tube 6, which helps to quickly and conveniently close and open the mouth of the sampling tube 6.
As shown in fig. 2, the plugging member 31 includes a plugging column 311 and a connection block 312, an outer diameter of the plugging column 311 is the same as an aperture of the injection port 11, a top of the plugging column 311 and a bottom wall of the connection block 312 are integrally formed, the bottom wall of the plugging column 311 is flush with the injection port 11, and the plugging column 311 is bound and fixed with the hauling rope 5. The connecting block 312 is an upright trapezoidal prism with the bottom surface area larger than the top wall area of the plugging column 311, and the length of the bottom wall of the connecting block 312 is smaller than the diameter of the sampling cylinder 1. As shown in fig. 3, the clamping member 32 includes a clamping block 321 and a first elastic member, a clamping groove 4 for allowing the clamping block 321 to pass through is provided on the side wall of the connecting block 312, the clamping groove 4 is provided on the inclined surface of the connecting block 312, and the clamping groove 4 is a rectangular groove. First elastic component is first spring 322, and first spring 322 level is placed, and the one end of first spring 322 and the lateral wall welded fastening of joint piece 321, the other end and the inside wall welding of sampler barrel 1. The one end that first spring 322 was kept away from to joint piece 321 is the hemisphere, and the port radius angle of joint groove 4, the port of joint groove 4 and the hemisphere lateral wall laminating of joint piece 321.
When the plugging device is used, the clamping block 321 enters the clamping groove 4, and the clamping groove 4 has a limiting effect on the connecting block 312, so that the plugging column 311 is not easy to vertically move, and the plugging performance of the plugging column 311 on the injection port 11 is better; when the sampling tube 1 impacts the top wall of the balancing weight 33, the clamping block 321 moves in the direction far away from the sample inlet 11 under the action of the impact force, at the moment, the hemispherical part of the clamping block 321 moves out of the clamping groove 4 due to extrusion, the first spring 322 is compressed, and at the moment, the bottom wall of the connecting block 312 ensures that slurry is not easy to enter the clamping groove 4 to block the clamping groove 4; when the sampling cylinder 1 finishes taking materials and lifts the sampling cylinder 1 upwards, the connecting block 312 moves towards the direction of the sample inlet 11 under the action of the gravity of the balancing weight 33, the clamping block 321 enters the clamping groove 4 again to fix the connecting block 312, the blocking column 311 blocks the sample inlet 11 again, and the opening and closing mode of the sample inlet 11 is simple and convenient.
As shown in fig. 3, in order to delay the damage of the first spring 322, a protection rod 8 is sleeved on the outer wall of the first spring 322, the protection rod 8 comprises a telescopic cylinder 81 and an insertion rod 82, the inner wall of the sampling cylinder 1 at one end of the telescopic cylinder 81 is welded and fixed, the other end of the telescopic cylinder is sleeved on the outer wall of the insertion rod 82 and is horizontally slidably connected with the insertion rod 82, and one end of the insertion rod 82, which is far away from the telescopic cylinder 81, is fixed with the clamping block 321 through a bolt. The telescopic cylinder 81 and the insertion rod 82 can reduce direct contact of mud with the first spring 322, thereby helping to slow down rusting of the first spring 322.
As shown in fig. 2, in order to further make the sampling tube 1 fall, the clamping block 321 is not easy to be removed from the clamping groove 4 artificially, the second elastic member is arranged inside the sampling tube 1, the second elastic member is a second spring 9, the second spring 9 is vertically telescopic, the top end of the second spring 9 is welded to the top wall of the sampling tube 1, the bottom end of the second spring 9 is welded to the top wall of the connecting block 312, and the second spring 9 is a tension spring with weaker elasticity. When the counterweight 33 can not straighten the traction rope 5, the weak elastic force of the second spring 9 can also help to make the clamping block 321 not easy to move out of the clamping groove 4.
As shown in fig. 2 and 3, the outer wall of the second spring 9 is sleeved with a protective cylinder 7 for accommodating the connecting block 312, the diameter of the protective cylinder 7 is equal to the length of the bottom wall of the connecting block 312, the top wall of the protective cylinder 7 is welded and fixed with the top wall of the sampling cylinder 1, the protective cylinder 7 is vertically arranged, and the port of the protective cylinder 7 far away from the top wall of the sampling cylinder 1 is close to the top of the connecting block 312. When connecting block 312 drives the vertical rebound of shutoff post 311, can get into protective barrel 7, and in the difficult protective barrel 7 that gets into of mud, so protective barrel 7 helps further reducing mud and gets into in the joint groove 4 and the possibility of shutoff joint groove 4, and protective barrel 7 also can play protection direction and guard action to second spring 9, slows down the damage of second spring 9.
The implementation principle of the bored concrete pile hole bottom mud sampling device of this application embodiment of high leakproofness is: an operator sequentially puts a balancing weight 33 and a sampling cylinder 1 into a bored concrete pile hole, then holds a second pull rod 23, and in the process that the balancing weight 33 and the sampling cylinder 1 move towards the bottom of the bored concrete pile hole, the balancing weight 33 exerts pulling force on a traction rope 5 under the action of self gravity to tighten the traction rope 5, so that a plugging column 311 is sealed at a sample inlet 11, at the moment, a clamping block 321 is arranged in a clamping groove 4, so that the plugging column 311 is not easy to move away from the sample inlet 11 under the action of non-human force, even if the balancing weight 33 is subjected to uneven pouring to loosen the traction rope 5, the sample inlet 11 is still plugged by a plugging piece 31, the possibility that soil at the top end in the bored concrete pile hole enters the sampling cylinder 1 is reduced, and the sampling accuracy of the sampling cylinder 1 is improved; when the counterweight block 33 moves to the bottom of the bored concrete pile hole, an operator applies force to the second pulling rod 23 to enable the pulling rod 2 to drive the sampling tube 1 to vertically impact the top wall of the counterweight block 33, at the moment, the clamping block 321 can release the fixation of the connecting block 312 under the action of the impact force, so that the plugging column 311 does not block the sample inlet 11 any more, at the moment, slurry at the bottom of the bored concrete pile hole enters the sampling tube 1, then the second pulling rod 23 is pulled in the direction away from the bottom of the bored concrete pile hole, the second pulling rod 23 drives the sampling tube 1 to move out of the bored concrete pile, in the process, the plugging column 311 blocks the sample inlet 11 again under the action of the counterweight block 33, the clamping piece 32 fixes the plugging piece 31 again, and the clamping block 321 enters the clamping groove 4 again; the mud in the sampling tube 1 can flow out through the sampling tube 6 under the action of self gravity for subsequent detection, and the whole sampling process is simple and convenient.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a bored concrete pile hole bottom mud sampling device of high leakproofness which characterized in that: comprises a sampling cylinder (1) and a lifting rod (2), the lifting rod (2) is connected with the top wall of the sampling cylinder (1), the bottom end of the sampling cylinder (1) is provided with a sample inlet (11), a plugging component (3) for plugging the sample inlet (11) is arranged at the sample inlet (11), the plugging component (3) comprises a plugging piece (31), the sampling device comprises a clamping piece (32) and a balancing weight (33), wherein the clamping piece (32) comprises a clamping block (321) and a first elastic piece, a clamping groove (4) for enabling the clamping block (321) to pass through is formed in the side wall of a blocking piece (31), the first elastic piece is used for driving the clamping block (321) to move in or out of the clamping groove (4), one end of the first elastic piece is fixedly connected with the clamping block (321), the other end of the first elastic piece is fixedly connected with the inner wall of the sampling tube (1), one end, far away from the first elastic piece, of the clamping block (321) is hemispherical, and a port of the clamping groove (4) is chamfered; be connected with haulage rope (5) between balancing weight (33) and shutoff piece (31), the one end of haulage rope (5) and the fixed connection of balancing weight (33), the other end and shutoff piece (31) fixed connection, the bottom lateral wall intercommunication of sampling tube (1) has sampling tube (6).
2. The high-leakproofness bored pile hole bottom mud sampling device according to claim 1, characterized in that: the plugging piece (31) comprises a plugging column (311) and a connecting block (312), the outer diameter of the plugging column (311) is the same as the aperture of the sample inlet (11), the top of the plugging column (311) is fixedly connected with the connecting block (312), and the connecting block (312) is inclined with the side wall connected with the clamping piece (32) and inclined from one side far away from the sample inlet (11) to one side close to the sample inlet (11).
3. The high-leakproofness bored pile hole bottom mud sampling device according to claim 2, characterized in that: the top of sampling tube (1) is connected with a protection section of thick bamboo (7) that is used for holding connecting block (312), and the port that the top wall of sampling tube (1) was kept away from in protection section of thick bamboo (7) is close to the top of connecting block (312).
4. The high-leakproofness bored pile hole bottom mud sampling device according to claim 2, characterized in that: the bottom of the plugging column (311) is flush with the sample inlet (11) of the sampling tube (1).
5. The high-leakproofness bored pile hole bottom mud sampling device according to claim 3, wherein: and a second elastic piece for applying elasticity to the connecting block (312) is arranged in the protective cylinder (7), one end of the second elastic piece is connected with the top wall of the sampling cylinder (1), and the other end of the second elastic piece is connected with the connecting block (312).
6. The high-leakproofness bored pile hole bottom mud sampling device according to claim 1, characterized in that: the outside cover of first elastic component is equipped with fender rod (8), and fender rod (8) are the telescopic link, the stiff end of fender rod (8) and the inner wall fixed connection of sampler barrel (1), the expansion end and joint piece (321) fixed connection of fender rod (8).
7. The high-leakproofness bored pile hole bottom mud sampling device according to claim 1, characterized in that: the bottom of the sampling tube (1) is in a necking shape.
8. The high-leakproofness bored pile hole bottom mud sampling device according to claim 1, characterized in that: the lifting rod (2) comprises a connecting cylinder (21), a first drawing rod (22) and a second drawing rod (23), one end of the connecting cylinder (21) is fixedly connected with the top wall of the sampling cylinder (1), the other end of the connecting cylinder is sleeved on the outer wall of the first drawing rod (22) and is in sliding connection with the first drawing rod (22), the second drawing rod (23) is inserted in the first drawing rod (22) and is in sliding connection with the second drawing rod (23), and fixing pieces are arranged on the connecting cylinder (21) and the first drawing rod (22).
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| CN202120792812.XU CN215339031U (en) | 2021-04-17 | 2021-04-17 | Bored concrete pile hole bottom mud sampling device of high leakproofness |
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| CN202120792812.XU CN215339031U (en) | 2021-04-17 | 2021-04-17 | Bored concrete pile hole bottom mud sampling device of high leakproofness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117433836A (en) * | 2023-12-13 | 2024-01-23 | 国家海洋环境监测中心 | Suspended sediment flux measuring equipment based on cage type sediment production |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117433836A (en) * | 2023-12-13 | 2024-01-23 | 国家海洋环境监测中心 | Suspended sediment flux measuring equipment based on cage type sediment production |
| CN117433836B (en) * | 2023-12-13 | 2024-03-15 | 国家海洋环境监测中心 | Suspended sediment flux measuring equipment based on cage type sediment production |
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