CN110185075B - Underground diaphragm wall mud sampler - Google Patents
Underground diaphragm wall mud sampler Download PDFInfo
- Publication number
- CN110185075B CN110185075B CN201910594353.1A CN201910594353A CN110185075B CN 110185075 B CN110185075 B CN 110185075B CN 201910594353 A CN201910594353 A CN 201910594353A CN 110185075 B CN110185075 B CN 110185075B
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- barrel
- barrel cover
- movable
- cover
- fixed
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- 238000005070 sampling Methods 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000002002 slurry Substances 0.000 abstract description 23
- 238000007789 sealing Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an underground diaphragm wall slurry sampler which comprises a sampling barrel and a counterweight device, wherein the sampling barrel comprises a barrel body, a barrel cover and a barrel bottom, lifting mechanisms are arranged on two sides of the barrel body, the barrel cover comprises a fixed barrel cover and a movable barrel cover, the fixed barrel cover and the movable barrel cover are semicircular, the fixed barrel cover is fixed on one side upper part of the barrel body, the movable barrel cover is arranged on the other side upper part of the barrel body and hinged on the fixed barrel cover, a barrel cover opening piece is arranged on the upper part of the movable barrel cover, the counterweight device is arranged below the barrel bottom and is fixedly connected with the movable barrel cover through an elastic connecting piece, and perforations are formed on the barrel bottom and the movable barrel cover. The invention has reasonable structural design and convenient operation, can improve the tightness of the sampling barrel by arranging the counterweight device connected with the movable barrel cover at the lower part of the barrel bottom, further improve the testing precision of mud samples, and can meet the sampling of the mud samples at different depths by arranging the lifting mechanisms at both sides of the barrel body, thereby having wide application range.
Description
Technical Field
The invention belongs to the technical field of underground diaphragm wall construction, and particularly relates to an underground diaphragm wall slurry sampler.
Background
The underground diaphragm wall is a deep foundation pit supporting means, and the concrete method is that a grooving machine is adopted to excavate under the condition of slurry protection wall along the foundation pit supporting range, a reinforcement cage is hung in a groove after the excavation is completed, and then a conduit method is used for pouring concrete into the underground diaphragm wall of the slurry protection wall.
The quality of the slurry is an important measure for preventing hole collapse and necking, controlling the thickness of sediments, smoothly lowering a reinforcement cage, improving the quality of a wall body and the like, and the construction specification has corresponding regulations on indexes such as specific gravity, viscosity, sand content, PH value and the like of the slurry, and is very important for controlling the performance indexes of the slurry at different depths of construction.
Before the construction of the concrete pouring of the underground diaphragm wall, the relative density, sand content and consistency of the slurry in the holes are required to be sampled and detected, and the concrete can be poured according with the design and specification requirements. The general sampling mode is to detect the slurry in the tank through the sampler, the existing sampler is difficult to completely obtain slurry samples at different depths, the obtained slurry sample parameters often have larger differences with actual slurry parameters and cannot truly reflect the actual conditions, and therefore, the slurry sampler capable of meeting the actual requirements is very necessary.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the underground diaphragm wall slurry sampler which is reasonable in structural design and convenient to operate, the sealing performance of the sampling barrel can be improved by arranging the counterweight device connected with the movable barrel cover at the lower part of the barrel bottom, the testing precision of slurry samples is further improved, meanwhile, the sampling of the slurry samples at different depths can be met by arranging the lifting mechanisms at the two sides of the barrel body, and the application range is wide.
In order to solve the technical problems, the invention adopts the following technical scheme: an underground diaphragm wall mud sampler which is characterized in that: including sample bucket and counter weight device, the sample bucket includes columniform staving, sets up the bung on staving upper portion and sets up the barrel head in the staving lower part, the both sides of staving all are provided with elevating system, two elevating system symmetry lays in the both sides of staving, the bung is including mutually supporting fixed bung and movable bung, the barrel head is circular and its fixing in the staving lower part, fixed bung and movable bung are semi-circular, fixed bung is fixed on one side upper portion of staving, movable bung sets up on opposite side upper portion of staving and its articulated on fixed bung, the upper portion of movable bung is provided with the bung opening part that is used for opening movable bung, counter weight device lays in the below of barrel head and its through elastic connection spare and movable bung fastening connection, the perforation that supplies elastic connection spare to pass is all offered on barrel head and the movable bung.
Foretell an underground diaphragm wall mud sampler, its characterized in that: the lifting mechanism comprises a lifting lug fixed on the outer side wall of the barrel body and a lifting rope connected to the upper end of the lifting lug, the lifting lug is an arc-shaped bent plate matched with the barrel body, the lower end of the lifting lug is welded on the outer side wall of the barrel body, and the upper end of the lifting lug extends out to the upper side of the barrel body.
Foretell an underground diaphragm wall mud sampler, its characterized in that: and binding holes for fixing the hoisting ropes are formed in the upper ends of the lifting lugs.
Foretell an underground diaphragm wall mud sampler, its characterized in that: the barrel body is internally provided with a cylindrical guide barrel for guiding the elastic connecting piece, and the guide barrel is arranged along the axial direction of the barrel body and is coaxial with the perforation of the barrel bottom.
Foretell an underground diaphragm wall mud sampler, its characterized in that: the guide cylinder is tightly attached to the inner side wall of the barrel body and is fixedly connected with the barrel body.
Foretell an underground diaphragm wall mud sampler, its characterized in that: the movable barrel cover is hinged on the fixed barrel cover through two hinges.
Foretell an underground diaphragm wall mud sampler, its characterized in that: the elastic connecting piece and the barrel cover opening piece are both ropes, and a first fixing lug for binding the elastic connecting piece and the barrel cover opening piece is arranged at the position of the perforation on the movable barrel cover.
Foretell an underground diaphragm wall mud sampler, its characterized in that: the first fixed lug is a triangular plate, the bottom of the first fixed lug is welded on the movable barrel cover, a notch communicated with the perforation on the movable barrel cover is arranged at the bottom of the first fixed lug, the lower end of the barrel cover opening piece and the upper end of the elastic connecting piece are bound on the first fixing lug through the notch.
Foretell an underground diaphragm wall mud sampler, its characterized in that: a rubber strip is arranged between the movable barrel cover and the barrel body, is a semicircular rubber strip matched with the movable barrel cover and is fixedly arranged at the lower part of the movable barrel cover.
Foretell an underground diaphragm wall mud sampler, its characterized in that: the counterweight device is a steel cylinder, a second fixing lug for connecting the lower end of the elastic connecting piece is arranged on the upper portion of the counterweight device, and a connecting hole for fixing the elastic connecting piece is formed in the second fixing lug.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the lifting mechanisms are arranged on both sides of the barrel body, the counterweight device is arranged at the lower part of the sampling barrel, so that the sampling barrel can be lowered under the action of the dead weight of the counterweight device, and meanwhile, the lowering height of the counterweight device is realized by controlling the lowering length of the lifting mechanisms, so that the sampling of mud samples at different depths is satisfied, and the application range is wide.
2. According to the invention, through arranging the through holes for the elastic connecting pieces to pass through on the barrel bottom and the movable barrel cover, the counterweight device can be directly connected with the movable barrel cover, so that the movable barrel cover and the barrel body can be sealed by the dead weight of the counterweight device, and the sealing is simple and convenient and has good sealing effect.
3. According to the invention, the fixed barrel cover and the barrel body are fixed into a whole, the movable barrel cover is hinged on the fixed barrel cover, the structure is simple, the sealing of the sampling barrel is convenient, the sampling efficiency can be effectively improved, and the sampling time is reduced.
In summary, the invention has reasonable structural design and convenient operation, the sealing performance of the sampling barrel can be improved by arranging the counterweight device connected with the movable barrel cover at the lower part of the barrel bottom, so that the testing precision of slurry samples is improved, and meanwhile, the sampling of the slurry samples at different depths can be satisfied by arranging the lifting mechanisms at the two sides of the barrel body, so that the application range is wide.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the tub cover of the present invention.
Fig. 3 is a schematic structural view of the tub bottom of the present invention.
Fig. 4 is a schematic structural view of a lifting lug according to the invention.
Fig. 5 is a schematic structural view of a first fixing lug according to the present invention.
Fig. 6 is a schematic structural view of a second fixing lug according to the present invention.
Reference numerals illustrate:
1-a barrel body; 2-barrel bottom; 3-1, fixing the barrel cover;
3-2, a movable barrel cover; 4-a counterweight device; 5-an elastic connection;
6, perforating; 7, lifting eyes; 7-1-ligating holes;
8-hoisting ropes; 9, a guide cylinder; 10, a hinge;
11-a first fixed ear; 12-a second fixed ear; 13-a barrel cover opening part;
14-a rubber strip; 15-notch; 16-connecting holes.
Detailed Description
As shown in fig. 1, 2 and 3, the invention comprises a sampling barrel and a counterweight device 4, wherein the sampling barrel comprises a cylindrical barrel body 1, a barrel cover arranged at the upper part of the barrel body 1 and a barrel bottom 2 arranged at the lower part of the barrel body 1, lifting mechanisms are arranged at two sides of the barrel body 1, the two lifting mechanisms are symmetrically arranged at two sides of the barrel body 1, the barrel cover comprises a fixed barrel cover 3-1 and a movable barrel cover 3-2 which are matched with each other, the barrel bottom 2 is circular and is fixed at the lower part of the barrel body 1, the fixed barrel cover 3-1 and the movable barrel cover 3-2 are semicircular, the fixed barrel cover 3-1 is fixed at the upper part of one side of the barrel body 1, the movable barrel cover 3-2 is arranged at the upper part of the other side of the barrel body 1 and is hinged to the fixed barrel cover 3-1, a barrel cover opening part 13 for opening the movable barrel cover 3-2 is arranged at the upper part of the movable barrel cover 3-2, the counterweight device 4 is arranged below the barrel bottom 2 and is tightly connected with the movable barrel cover 3-2 through an elastic connecting piece 5 and is fixedly connected with the movable barrel cover 3-2 through an elastic connecting piece 6 and is arranged on the movable barrel cover 2 through an elastic perforating piece 6.
When in actual use, the barrel body 1 is a cylindrical steel cylinder, the barrel bottom 2 is a round steel plate, the fixed barrel cover 3-1 and the movable barrel cover 3-2 are both semicircular steel plates, the barrel bottom 2 is welded at the lower end of the barrel body 1 to plug the lower end of the barrel body 1, the fixed barrel cover 3-1 is welded at the upper end of the barrel body 1, lifting mechanisms are arranged at two sides of the barrel body 1, and the counterweight device 4 is arranged at the lower part of the sampling barrel, so that the sampling barrel can be lowered under the action of the dead weights of the counterweight device 4 and the sampling barrel, and the lowering depth of the sampling barrel is realized by controlling the lowering length of the lifting mechanisms, so that the sampling of mud samples at different depth positions is met, and the application range is wide.
It should be noted that, the through holes 6 are circular through holes, and through the through holes 6 through which the elastic connecting piece 5 passes are formed on the barrel bottom 2 and the movable barrel cover 3-2, the counterweight device 4 can be directly connected with the movable barrel cover 3-2, and then the movable barrel cover 3-2 and the barrel body 1 can be sealed by the dead weight of the counterweight device 4, so that the sealing is simple and convenient and the sealing effect is good.
In this embodiment, the radii of the fixed barrel cover 3-1 and the movable barrel cover 3-2 are equal, the fixed barrel cover 3-1 and the barrel bottom 2 are parallel to each other, and when the sampling barrel is in a closed state, the fixed barrel cover 3-1 and the movable barrel cover 3-2 are spliced together to form a circular barrel cover to seal the upper end of the barrel body 1.
During actual use, the fixed barrel cover 3-1 and the barrel body 1 are fixed into a whole, the movable barrel cover 3-2 is hinged on the fixed barrel cover 3-1, the structure is simple, the sealing of the sampling barrel is convenient, the sampling efficiency can be effectively improved, and the sampling time is shortened.
It should be noted that, by arranging the lid opening member 13 at the upper part of the movable lid 3-2, it is convenient for the staff to control the opening and closing of the sampling barrel, and the sampling of the slurry sample is completed.
In this embodiment, the tub body 1, the tub bottom 2, the fixed tub cover 3-1 and the movable tub cover 3-2 are all made of steel materials, and the tub body 1, the tub bottom 2 and the fixed tub cover 3-1 are integrally made of steel materials.
In this embodiment, elevating system is including fixing lug 7 on staving 1 lateral wall and the hoist and mount rope 8 of connection in lug 7 upper end, lug 7 is the arc bent plate that mutually supports with staving 1, the lower extreme welding of lug 7 is on staving 1 lateral wall, the top that the upper end of lug 7 stretches out to staving 1.
When in actual use, the length scale marks are arranged on the hoisting rope 8, so that the lowering depth of the sampling bucket can be accurately controlled, and the testing precision of a slurry sample is improved.
It should be noted that, the lifting lugs 7 are arc-shaped steel plates, and two lifting lugs 7 are symmetrically arranged at two sides of the barrel body 1.
In this embodiment, as shown in fig. 4, a binding hole 7-1 for fixing the hoisting rope 8 is formed at the upper end of the lifting lug 7.
When in actual use, the lower end of the hoisting rope 8 passes through the binding hole 7-1 and then is bound at the upper end of the lifting lug 7, the upper end of the hoisting rope 8 is connected to a lifting appliance, and the hoisting rope 8 is pulled or hoisted below by the lifting appliance, so that the lifting and the releasing of the material taking barrel are realized.
The binding hole 7-1 is a circular through hole formed along the thickness direction of the lifting lug 7.
In this embodiment, a cylindrical guiding cylinder 9 for guiding the elastic connection member 5 is disposed in the barrel body 1, and the guiding cylinder 9 is disposed along the axial direction of the barrel body 1 and coaxially with the through hole 6 of the barrel bottom 2.
During actual use, guide cylinder 9 is the steel cylinder, through setting up guide cylinder 9 in staving 1, can make elastic connection spare 5 pass guide cylinder 9 back and counter weight device 4 fastening connection from top to bottom, guarantee counter weight device 4's stability, prevent that the sampling barrel from pulling up or the in-process of transferring down, counter weight device 4 drives the sampling barrel and takes place to rock, and then influences the extraction of mud sample.
In this embodiment, when the sampling barrel is in a closed state, the through holes 6 on the barrel bottom 2 and the movable barrel cover 3-2 are both coaxially arranged with the guide barrel 9, so that the elastic connecting piece 5 can be vertically arranged under the action of the counterweight device 4.
In this embodiment, the guiding cylinder 9 is tightly attached to the inner side wall of the barrel body 1 and is fixedly connected with the barrel body 1.
In actual use, the guide cylinder 9 is a cylindrical cylinder body and is welded on the inner side wall of the barrel body 1, and the inner diameter of the guide cylinder 9 is not smaller than the aperture of the perforation 6.
In this embodiment, the movable barrel cover 3-2 is hinged to the fixed barrel cover 3-1 through two hinges 10.
In actual use, the straight line section of the movable barrel cover 3-2 and the straight line section of the fixed barrel cover 3-1 are hinged and fixed through two hinges 10, so that the movable barrel cover is convenient to install and detach.
In this embodiment, the elastic connection member 5 and the lid opening member 13 are both ropes, and a first fixing lug 11 for binding the elastic connection member 5 and the lid opening member 13 is disposed at the position of the through hole 6 on the movable lid 3-2.
In actual use, the upper end of the elastic connecting piece 5 is bound on the first fixed lug 11, and the lower end of the elastic connecting piece 5 sequentially passes through the perforation 6 on the movable barrel cover 3-2, the guide barrel 9 and the perforation 6 on the barrel bottom 2 from bottom to top and then is in fastening connection with the counterweight device 4.
It should be noted that, the first fixing lug 11 is a steel plate and is welded on the movable barrel cover 3-2, and the first fixing lug 11 is located right above the perforation 6 on the movable barrel cover 3-2.
In this embodiment, as shown in fig. 5, the first fixing lug 11 is a triangular plate and the bottom of the first fixing lug is welded on the movable barrel cover 3-2, a notch 15 that is communicated with the through hole 6 on the movable barrel cover 3-2 is formed in the bottom of the first fixing lug 11, and the lower end of the barrel cover opening member 13 and the upper end of the elastic connecting member 5 are bound on the first fixing lug 11 through the notch 15.
When in actual use, the first fixing lug 11 is a triangular steel plate, the upper end of the barrel cover opening piece 13 is in fastening connection with the lifting appliance, and the lower end of the barrel cover opening piece 13 is bound on the first fixing lug 11 through the notch 15.
It should be noted that, the notch 15 is an arch notch, the upper end of the elastic connecting piece 5 passes through the notch 15 from bottom to top and then is bound on the upper portion of the first fixing lug 11, and the lower end of the lid opening piece 13 passes through the notch 15 from top to bottom and then is bound on the upper portion of the first fixing lug 11.
In this embodiment, a rubber strip 14 is disposed between the movable barrel cover 3-2 and the barrel body 1, and the rubber strip 14 is a semicircular rubber strip matched with the movable barrel cover 3-2 and is fixedly mounted at the lower part of the movable barrel cover 3-2.
When in actual use, the rubber strip 14 is positioned at the lower part of the circular arc section of the movable barrel cover 3-2, and the sampling barrel can be sealed by arranging the rubber strip 14 between the movable barrel cover 3-2 and the barrel body 1, so that slurry can not enter the sampling barrel in the process of lowering the sampling barrel, and the purity of a slurry sample is ensured.
In this embodiment, as shown in fig. 6, the weight device 4 is a steel cylinder, a second fixing lug 12 for connecting the lower end of the elastic connecting piece 5 is provided at the upper portion of the weight device 4, and a connecting hole 16 for fixing the elastic connecting piece 5 is provided on the second fixing lug 12.
In actual use, the second fixing lug 12 is a triangular steel plate and is welded at the upper end of the counterweight device 4, a circular connecting hole 16 is formed in the middle of the second fixing lug 12, and the lower end of the elastic connecting piece 5 passes through the connecting hole 16 and is then bound at the upper part of the second fixing lug 12.
When the invention is actually used, the sampling bucket is lowered by controlling the two hoisting ropes 8, and the lowering depth of the sampling bucket is determined according to the scales on the hoisting ropes 8; when the sampling bucket is lowered, the movable bucket cover 3-2 is closed under the gravity action of the counterweight device 4 connected with the lower part of the elastic connecting piece 5, and the rubber strip 14 under the movable bucket cover 3-2 seals the sampling bucket, so that slurry can not enter the sampling bucket when the sampling bucket is lowered; after the sampling barrel is lowered to the sampling depth, the barrel cover opening piece 13 is pulled upwards through the lifting appliance to enable the movable barrel cover 3-2 to be opened, mud can enter the sampling barrel, after waiting for about 5-10 seconds, the barrel cover opening piece 13 is loosened, the movable barrel cover 3-2 can seal the sampling barrel under the action of the counterweight device 4, then the sampling barrel can be extracted by utilizing the two lifting ropes 8, and the sampling of the mud is completed.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
1. An underground diaphragm wall mud sampler which is characterized in that: comprises a sampling barrel and a counterweight device (4), wherein the sampling barrel comprises a cylindrical barrel body (1), a barrel cover arranged on the upper part of the barrel body (1) and a barrel bottom (2) arranged on the lower part of the barrel body (1), lifting mechanisms are arranged on two sides of the barrel body (1) symmetrically, the barrel cover comprises a fixed barrel cover (3-1) and a movable barrel cover (3-2) which are matched with each other, the barrel bottom (2) is round and is fixed on the lower part of the barrel body (1), the fixed barrel cover (3-1) and the movable barrel cover (3-2) are semicircular, the fixed barrel cover (3-1) is fixed on one side upper part of the barrel body (1), the movable barrel cover (3-2) is arranged on the other side upper part of the barrel body (1) and is hinged on the fixed barrel cover (3-1), a barrel cover opening piece (13) for opening the movable barrel cover (3-2) is arranged on the upper part of the movable barrel cover (3-2), the barrel bottom (4) is connected with the movable barrel cover (3-2) through an elastic fastening piece (5), perforations (6) for the elastic connecting piece (5) to pass through are formed in the barrel bottom (2) and the movable barrel cover (3-2);
the lifting mechanism comprises a lifting lug (7) fixed on the outer side wall of the barrel body (1) and a lifting rope (8) connected to the upper end of the lifting lug (7), the lifting lug (7) is an arc-shaped bent plate matched with the barrel body (1), the lower end of the lifting lug (7) is welded on the outer side wall of the barrel body (1), and the upper end of the lifting lug (7) extends to the upper side of the barrel body (1);
the barrel body (1) is internally provided with a cylindrical guide cylinder (9) for guiding the elastic connecting piece (5), and the guide cylinder (9) is arranged along the axial direction of the barrel body (1) and is coaxially arranged with the perforation (6) of the barrel bottom (2).
2. An underground diaphragm wall mud sampler as set forth in claim 1 wherein: the upper end of the lifting lug (7) is provided with a binding hole (7-1) for fixing the lifting rope (8).
3. An underground diaphragm wall mud sampler as set forth in claim 1 wherein: the guide cylinder (9) is tightly attached to the inner side wall of the barrel body (1) and is fixedly connected with the barrel body (1).
4. An underground diaphragm wall mud sampler as set forth in claim 1 wherein: the movable barrel cover (3-2) is hinged on the fixed barrel cover (3-1) through two hinges (10).
5. An underground diaphragm wall mud sampler as set forth in claim 1 wherein: the elastic connecting piece (5) and the barrel cover opening piece (13) are both ropes, and a first fixing lug (11) for binding the elastic connecting piece (5) and the barrel cover opening piece (13) is arranged at the position of a perforation (6) on the movable barrel cover (3-2).
6. An underground diaphragm wall mud sampler as set forth in claim 5 wherein: the utility model discloses a barrel cover is characterized in that a first fixed lug (11) is a triangle plate, the bottom of the first fixed lug is welded on a movable barrel cover (3-2), a notch (15) communicated with a perforation (6) on the movable barrel cover (3-2) is formed in the bottom of the first fixed lug (11), and the lower end of a barrel cover opening piece (13) and the upper end of an elastic connecting piece (5) are bound on the first fixed lug (11) through the notch (15).
7. An underground diaphragm wall mud sampler as set forth in claim 1 wherein: a rubber strip (14) is arranged between the movable barrel cover (3-2) and the barrel body (1), and the rubber strip (14) is a semicircular rubber strip matched with the movable barrel cover (3-2) and is fixedly arranged at the lower part of the movable barrel cover (3-2).
8. An underground diaphragm wall mud sampler as set forth in claim 1 wherein: the counterweight device (4) is a steel cylinder, a second fixing lug (12) for connecting the lower end of the elastic connecting piece (5) is arranged on the upper portion of the counterweight device (4), and a connecting hole (16) for fixing the elastic connecting piece (5) is formed in the second fixing lug (12).
Priority Applications (1)
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CN201910594353.1A CN110185075B (en) | 2019-07-03 | 2019-07-03 | Underground diaphragm wall mud sampler |
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CN201910594353.1A CN110185075B (en) | 2019-07-03 | 2019-07-03 | Underground diaphragm wall mud sampler |
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CN110185075B true CN110185075B (en) | 2024-03-26 |
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