CN112345564B - Simple and easy device of hand formula laboratory slip casting - Google Patents
Simple and easy device of hand formula laboratory slip casting Download PDFInfo
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- CN112345564B CN112345564B CN202011145772.6A CN202011145772A CN112345564B CN 112345564 B CN112345564 B CN 112345564B CN 202011145772 A CN202011145772 A CN 202011145772A CN 112345564 B CN112345564 B CN 112345564B
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- 238000007569 slipcasting Methods 0.000 title claims description 3
- 238000012360 testing method Methods 0.000 claims abstract description 20
- 239000011440 grout Substances 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/0289—Apparatus for withdrawing or distributing predetermined quantities of fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1016—X-ray
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/60—Specific applications or type of materials
- G01N2223/646—Specific applications or type of materials flaws, defects
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- Radiology & Medical Imaging (AREA)
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Abstract
The invention discloses a simple hand-operated laboratory grouting device which comprises a cylinder body, a cylinder body support, a hand-operated rod, a lifting pull rope, a piston, a height adjuster and a chassis, wherein a grouting port is formed in one side of the top of the cylinder body, a grout outlet is formed in one side of the bottom of the cylinder body, a pressure gauge for monitoring the pressure in the cylinder is further arranged on the cylinder body, the cylinder body support is arranged on two sides of the bottom of the cylinder body, the hand-operated rod is arranged at the top of the cylinder body, the piston is arranged in the cylinder body, a grouting nozzle communicated with the interior of the cylinder body is arranged on the piston, the chassis is arranged at the bottom of the cylinder body, the height adjuster is arranged between the chassis and the piston and is used for adjusting the distance between the chassis and the piston, and the hand-operated rod pulls the chassis to lift through the lifting pull rope; the top of the chassis is also provided with a workpiece fixing column for limiting and fixing a test piece placed on the chassis; the hand-operated laboratory grouting simple device is simple and reasonable in structure, and can control a certain degree of pressure and grouting amount under a certain condition.
Description
Technical Field
The invention relates to the technical field of grouting equipment, in particular to a simple hand-operated laboratory grouting device.
Background
Grouting a test piece containing a crack in a laboratory is an important content for quantitatively researching the grouting reinforcement effect, and the method aims to effectively improve the quality of the rock mass containing the crack and simultaneously improve the basic performance of the rock mass containing the crack. At present, in the existing grouting technology of indoor models related to grouting, large-size manual medical injectors are mostly adopted as grouting equipment, the equipment is simple and convenient to use, but only can control grouting amount, and grouting pressure cannot be controlled. However, for the indoor model test, grouting is often required to be performed for a short time under a certain pressure, and therefore, it is necessary to develop a grouting device which has a more reasonable structural design and can jointly realize control of a certain degree of pressure and control of grouting amount under certain conditions.
Disclosure of Invention
The invention aims to provide a simple hand-operated laboratory grouting device, which is used for solving the problems in the prior art, has a simple and reasonable structure, and can realize control of a certain degree of pressure and grouting amount under a certain condition.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a simple hand-operated laboratory grouting device which comprises a cylinder body, a cylinder body support, a hand-operated rod, a lifting pull rope, a piston, a height regulator and a chassis, a grouting opening is arranged on one side of the top of the cylinder body, a grout outlet is arranged on one side of the bottom of the cylinder body, the cylinder body is also provided with a pressure gauge for monitoring the pressure in the cylinder, the cylinder body is supported and arranged at the two sides of the bottom of the cylinder body, the hand lever is arranged at the top of the cylinder body, the piston is arranged in the cylinder body, a grouting nozzle communicated with the interior of the cylinder body is arranged on the piston, the chassis is arranged at the bottom of the cylinder body, the height adjuster is arranged between the chassis and the piston, the hand-operated lever is rotationally connected with the top of the cylinder body and pulls the chassis to lift through the lifting pull rope; and the top of the chassis is also provided with a workpiece fixing column for limiting and fixing a test piece placed on the chassis.
Preferably, the cylinder is a cylindrical stainless steel cylinder structure.
Preferably, the grouting opening and the grout outlet are both provided with detachable rubber plugs.
Preferably, the cylinder supports are symmetrically arranged on two sides of the bottom of the cylinder.
Preferably, the cylinder body supports the vertical slip seam that is provided with the bar vertically, and is relative the both sides on chassis are provided with the nose bar, the nose bar by the inboard that the cylinder body supported passes vertical slip seam stretches out the cylinder body supports, the cylinder body supports the outside connect on the nose bar lift stay cord, two lift stay cords are walked around respectively connect behind the pulley of cylinder body top both sides the hand lever rotates two is realized the hand lever receive and releases when lifting stay cord, realizes the lift on chassis.
Preferably, two height adjusters are provided, and the two height adjusters are symmetrically arranged with the axis of the piston as a center line.
Preferably, altitude controller includes sleeve and telescopic link, telescopic top with the piston connection, the vertical a plurality of altitude mixture control holes that are provided with on the telescopic lateral wall, the bottom of telescopic link with the chassis is connected, the vertical cylindrical arch of a plurality of pressable formula that is provided with on the body of rod of telescopic link, the telescopic link with the sleeve pass through cylindrical arch with the altitude mixture control hole interlock is connected, realizes the flexible regulation of telescopic link through the interlock position of difference.
Preferably, two crossed transverse sliding seams are arranged on a tray body of the chassis, the two crossed sliding seams form four sliding seams which are axially and uniformly distributed by taking the center of the chassis as the midpoint, the four transverse sliding seams are all connected with a workpiece fixing column in a sliding mode, the workpiece fixing column comprises a sliding column body and a base, the sliding column body penetrates through the transverse sliding seam and is located at the top of the chassis and used for clamping a limiting test piece, the base is clamped at the bottom of the base, two transverse bolt holes are formed in the base, a plurality of pairwise opposite short convex columns are arranged on the bottom end face of the chassis at two sides of the transverse sliding seam, the short convex columns at the same side are distributed at equal intervals, clamping portions with the diameter larger than that of the column body are arranged at the bottoms of the short convex columns, each bolt comprises two inserting rods and a cross rod located at one end and connected with the two inserting rods, and the two inserting rods are clamped outside the two symmetrical short convex columns at two sides of the transverse sliding seam, and the two inserting rods are respectively inserted in the two transverse inserting pin holes on the base, and the clamping part is used for vertical limiting of the inserting pins.
Preferably, the lifting rope is a steel wire.
Preferably, a ring of rubber gasket is arranged at the bottom edge of the grouting nozzle.
Compared with the prior art, the invention has the following beneficial technical effects:
the simple hand-operated laboratory grouting device provided by the invention is applied to grouting laboratories, is more reasonable in structural design, is provided with the liftable chassis and the piston, realizes grouting while extruding, is provided with the pressure gauge for monitoring the pressure in the cylinder body, and can realize control of a certain degree of pressure and grouting amount under a certain condition.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of a simple hand-operated laboratory grouting device according to the present invention;
FIG. 2 is a side view of the simple hand-operated laboratory grouting device of the invention;
FIG. 3 is a schematic view of the cylinder support of the present invention;
FIG. 4 is a top view of the chassis of the present invention;
FIG. 5 is a bottom view of the chassis of the present invention;
FIG. 6 is a schematic view of the assembly of the stud and the pin of the present invention;
FIG. 7 is a schematic structural view of the short convex pillar of the present invention;
FIG. 8 is a schematic view of a workpiece fixing post according to the present invention;
FIG. 9 is a top view of the latch of the present invention;
FIG. 10 is a front view of the latch of the present invention;
in the figure: 1. a hand lever; 2. a pulley; 3. a pressure gauge; 4. a grouting port; 5. a lifting rope; 6. a pulp outlet; 7. a height adjuster 8, a piston; 9. a workpiece fixing column; 10. a chassis; 11. a grouting nozzle; 12. a cylinder body; 13. the convex rod 14 is a vertical sliding seam; 15-short convex columns; 16-a latch; 17-transverse bolt holes; 18-a base; 19-transverse sliding seam, 20-inserted bar and 21-cross bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a simple hand-operated laboratory grouting device to solve the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The simple hand-operated laboratory grouting device in the embodiment is shown in fig. 1-2 and comprises a cylinder body 12, a cylinder body support, a hand-operated rod 1, a lifting pull rope 5, a piston 8, a height adjuster 7 and a chassis 10, wherein the cylinder body 12 is of a cylindrical stainless steel cylinder body structure, a grouting port 4 is arranged on one side of the top of the cylinder body 12, a grout outlet 6 is arranged on one side of the bottom of the cylinder body 12, the inner diameters of the grouting port 4 and the grout outlet 6 are about 30mm, and detachable rubber plugs for plugging the grouting port 4 and the grout outlet 6 are arranged at the grouting port 4 and the grout outlet 6; the cylinder body 12 is also provided with a pressure gauge 3 for monitoring the pressure in the cylinder, the cylinder body supports are symmetrically arranged on two sides of the bottom of the cylinder body 12, the hand-operated rod 1 is arranged on the top of the cylinder body 12, the piston 8 is arranged in the cylinder body 12, the piston 8 is provided with a grouting nozzle 11 communicated with the interior of the cylinder body 12, and the bottom edge of the grouting nozzle 11 is provided with a circle of rubber gasket, so that the connection stability and the sealing property between the grouting nozzle and a test piece grouting hole are improved, and the grouting is facilitated; the chassis 10 is arranged at the bottom of the cylinder body 12, the height adjuster 7 is arranged between the chassis 10 and the piston 8 and used for adjusting the distance between the chassis 10 and the piston 8, the hand-operated rod 1 is rotatably connected with the top of the cylinder body 12, and the hand-operated rod 1 pulls the chassis 10 to ascend and descend through the lifting pull rope 5; the top of the chassis 10 is also provided with a workpiece fixing column 9 for limiting and fixing a test piece placed on the chassis 10.
In this embodiment, as shown in fig. 3, a bar-shaped vertical sliding seam 14 is vertically arranged on the cylinder support, two opposite sides of the chassis 10 are provided with protruding rods 13, the protruding rods 13 penetrate through the vertical sliding seam 14 from the inner side of the cylinder support and extend out of the cylinder support, the protruding rods 13 on the outer side of the cylinder support are connected with lifting pull ropes 5, the two lifting pull ropes 5 respectively bypass pulleys 2 on two sides of the top of the cylinder 12 and then are connected with a hand lever 1, and the hand lever 1 is rotated to realize simultaneous retraction and release of the two lifting pull ropes 5, so as to realize lifting of the chassis 10; the lifting rope 5 is a steel wire rope.
In this embodiment, two height adjusters 7 are provided, and the two height adjusters 7 are symmetrically arranged with the axis of the piston 8 as the center line; altitude controller 7 includes sleeve and telescopic link, and telescopic top is connected with piston 8, and the vertical a plurality of altitude mixture control holes that are provided with on the telescopic lateral wall, the bottom and the chassis 10 of telescopic link are connected, and the vertical cylindrical arch of a plurality of pressable formulas that is provided with on the body of rod of telescopic link, telescopic link and sleeve pass through cylindrical arch and altitude mixture control hole interlock and are connected, realize the flexible regulation of telescopic link through the interlock position of difference.
In the present embodiment, as shown in fig. 4-8, two crossed and transversely disposed transverse sliding seams 19 are disposed on the tray body of the chassis 10, the intersection point of the two transverse sliding seams 19 is located at the center of the chassis 10, the two crossed sliding seams form four sliding seams circumferentially distributed with the center of the chassis 10 as the center, the included angle between two adjacent sliding seams 19 is 90 °, the four transverse sliding seams 19 are slidably connected with a workpiece fixing column 9, as shown in fig. 8, the workpiece fixing column 9 includes a sliding column body and a base 18, the sliding column body passes through the transverse sliding seam 19 and is located at the top of the chassis 10 for clamping a limit test piece, the base 18 is clamped at the bottom of the base 18, the base 18 is provided with two transverse bolt holes 17, the bottom end face of the chassis 10 at two sides of the transverse sliding seam 19 is provided with a plurality of opposing short protruding columns 15, and the short protruding columns 15 on the same side are equidistantly distributed (small pitch, about 10mm), the bottom of short projection 15 is provided with the joint portion that the diameter is greater than the cylinder, as shown in fig. 9-10, bolt 16 includes two inserted bars 20 and is located the horizontal pole 21 of two inserted bars 20 of one end connection, two inserted bars 20 centre gripping are in the cylinder outside of two short projections 15 of horizontal sliding seam 19 bilateral symmetry, and two inserted bars 20 peg graft respectively on two horizontal bolt holes 17 on base 18, joint portion is used for the vertical spacing of bolt 16.
The hand-operated laboratory grouting simple device provided by the invention has the following specific working process:
1. the method comprises the steps of preparing a laboratory standard test piece, drilling a circular grouting hole in the top of the test piece by using a drill bit, fixing the test piece between 4 workpiece fixing columns 9 on a chassis 10, and limiting and fixing the 4 workpiece fixing columns 9 through bolts 16.
2. The relative distance between the piston 8 and the chassis 10 is adjusted through the press-type cylindrical bulge and the height adjusting hole of the height adjuster 7, so that the grouting nozzle 11 is connected with the grouting hole of the test piece.
3. The column is blocked by the outlet 6 with a rubber stopper, a certain amount of the required grout is injected from the grouting port 4 (when the grouting amount needs to be controlled, a certain amount of grout can be injected through a large-scale injector), then the column grouting port 4 is blocked by the same rubber stopper, and the interior of the cylinder body 12 is sealed.
4. Shaking hand rocker 1 and pulling lift stay cord 5 so that chassis 10 rises, simultaneously through driving piston 8 and chassis 10 whole rising squeeze cylinder body 12 inner space, exert grouting pressure, until the pressure numerical value that shows on the manometer 3 reaches predetermined grouting pressure value.
5. After grouting is carried out for a plurality of minutes under the preset grouting pressure, the hand-operated rod 1 is shaken, the height of the piston 8 is lowered to release the pressure, the relative distance between the piston 8 and the chassis 10 is adjusted through the height adjuster 7, the grouting nozzle 11 is separated from the grouting hole, and then the test piece is taken down.
6. And (3) repeating the steps 1, 2, 4 and 5 on other test pieces, taking down the rubber plug of the grout outlet 6 if residual grout still remains after the final grouting is finished, shaking the rocker, lifting the piston 8 to the position of the grout outlet 6, and discharging the grout.
7. And testing the grouting effect of the test piece and carrying out subsequent tests.
The concrete case is as follows:
the device is used for grouting some standard concrete samples containing cracks in a laboratory, and part of parameters of the device are as follows: the full height of the cylinder body 12 and the cylinder body support is 1.5m, the inner diameter of the cylinder body 12 is 40cm, the length of the grouting nozzle 11 is 10cm, the inner diameter is 5mm, the adjustable range of the height adjuster 7 is 20-40 cm (the relative distance between the piston 8 and the chassis 10), the total length of the vertical sliding seam is 20cm, the total length of the single transverse sliding seam is 19 cm, the total length of the short convex column is 15cm, the total length of the short convex column is 2cm, the smaller inner diameter is 1.5cm, the thicker inner diameter is 5mm, the sliding range of the piston 8 is from the horizontal plane of the grout outlet 6 to the position 5cm above the cylindrical bottom of the cylinder body 12, and the moving range of the fixed cylinder can reach more than 60% of the chassis 10. The grouting pressure is 2 MPa.
After grouting, the CT scanning technology is utilized to observe the filling condition of the crack, the grouting effect is analyzed, the grouting effect is found to be good, and the requirements of subsequent tests (such as the research on mechanical properties, impermeability and the like of the rock body after grouting) can be met.
The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (9)
1. The utility model provides a simple and easy device of hand formula laboratory slip casting which characterized in that: the automatic mortar filling machine comprises a cylinder body, a cylinder body support, a hand lever, a lifting stay cord, a piston, a height adjuster and a chassis, wherein a grouting port is formed in one side of the top of the cylinder body, a mortar outlet is formed in one side of the bottom of the cylinder body, a pressure gauge for monitoring the pressure in the cylinder body is further arranged on the cylinder body, the cylinder body support is arranged on two sides of the bottom of the cylinder body, the hand lever is arranged at the top of the cylinder body, the piston is arranged in the cylinder body, a grouting nozzle communicated with the interior of the cylinder body is arranged on the piston, the chassis is arranged at the bottom of the cylinder body, the height adjuster is arranged between the chassis and the piston and used for adjusting the distance between the chassis and the piston, the hand lever is rotatably connected with the top of the cylinder body, and the hand lever pulls the chassis to lift through the lifting stay cord; the top of the chassis is also provided with a workpiece fixing column for limiting and fixing a test piece placed on the chassis;
the cylinder body supports the vertical slip seam that is provided with the bar vertically, and is relative the both sides on chassis are provided with the nose bar, the nose bar by the inboard that the cylinder body supported passes vertical slip seam stretches out the cylinder body supports, the cylinder body supports the outside connect on the nose bar lift stay cord, two lift stay cords are walked around respectively connect behind the pulley of cylinder body top both sides the hand lever rotates two is realized the hand lever receive and releases when lifting stay cord, realizes the lift on chassis.
2. The simple hand-operated laboratory grouting device according to claim 1, which is characterized in that: the cylinder body is a cylindrical stainless steel cylinder body structure.
3. The simple hand-operated laboratory grouting device according to claim 1, which is characterized in that: and the grouting opening and the grout outlet are respectively provided with a detachable rubber plug.
4. The simple hand-operated laboratory grouting device according to claim 1, which is characterized in that: the cylinder body supports are symmetrically arranged on two sides of the bottom of the cylinder body.
5. The simple hand-operated laboratory grouting device according to claim 1, which is characterized in that: the height adjuster is provided with two, two height adjuster uses the axis of piston as the central line symmetry setting.
6. The simple hand-operated laboratory grouting device according to claim 5, which is characterized in that: the altitude controller includes sleeve and telescopic link, telescopic top with piston connection, the vertical a plurality of altitude mixture control holes that are provided with on the telescopic lateral wall, the bottom of telescopic link with the chassis is connected, the vertical cylindrical arch of a plurality of pressable formula that is provided with on the body of rod of telescopic link, the telescopic link with the sleeve through cylindrical arch with the interlock of altitude mixture control hole is connected, realizes the flexible regulation of telescopic link through the interlock position of difference.
7. The simple hand-operated laboratory grouting device according to claim 1, which is characterized in that: the chassis is provided with two crossed transverse sliding seams which are transversely arranged, the two crossed sliding seams form four sliding seams which are axially and uniformly distributed by taking the circle center of the chassis as the midpoint, the four transverse sliding seams are all connected with a workpiece fixing column in a sliding mode, the workpiece fixing column comprises a sliding column body and a base, the sliding column body penetrates through the transverse sliding seams and is located at the top of the chassis and used for clamping a limiting test piece, the base is clamped at the bottom of the base, the base is provided with two transverse bolt holes, a plurality of pairwise opposite short convex columns are arranged on the bottom end face of the chassis at two sides of each transverse sliding seam, the short convex columns at the same side are distributed at equal intervals, clamping parts with diameters larger than those of the columns are arranged at the bottoms of the short convex columns, each bolt comprises two inserting rods and a transverse rod which is located at one end and connected with the two inserting rods, and the two inserting rods are clamped outside the columns of the two symmetrical short convex columns at two sides of the transverse sliding seams, and the two inserting rods are respectively inserted in the two transverse inserting pin holes on the base, and the clamping part is used for vertical limiting of the inserting pins.
8. The simple hand-operated laboratory grouting device according to claim 1, which is characterized in that: the lifting pull rope is a steel wire.
9. The simple hand-operated laboratory grouting device according to claim 1, which is characterized in that: and a circle of rubber gasket is arranged at the bottom edge of the grouting nozzle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011145772.6A CN112345564B (en) | 2020-10-23 | 2020-10-23 | Simple and easy device of hand formula laboratory slip casting |
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| CN202011145772.6A CN112345564B (en) | 2020-10-23 | 2020-10-23 | Simple and easy device of hand formula laboratory slip casting |
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| CN112345564B true CN112345564B (en) | 2021-09-17 |
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| CN112345564A (en) | 2021-02-09 |
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