CN110595980A - Experimental device for simulation concrete infiltration durability - Google Patents
Experimental device for simulation concrete infiltration durability Download PDFInfo
- Publication number
- CN110595980A CN110595980A CN201910893300.XA CN201910893300A CN110595980A CN 110595980 A CN110595980 A CN 110595980A CN 201910893300 A CN201910893300 A CN 201910893300A CN 110595980 A CN110595980 A CN 110595980A
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- wall
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- durability
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
Abstract
The invention relates to the technical field of experimental devices and discloses an experimental device for simulating concrete water seepage durability. According to the invention, the mounting plate, the motor, the rotating rod, the first gear, the second gear, the first limit block, the threaded sleeve, the screw rod, the L-shaped connecting rod, the second limit block, the pressing plate, the chute, the Z-shaped rod, the moving rod, the camera, the sleeve, the scale label and the spring are arranged, and the pressing plate is driven to move downwards by the rotation of the motor, so that the downward force of the pressing plate is calculated according to the hooke's law through the deformation distance of the spring, an electric power detection element is not needed in the whole detection process, the electric power detection element is not damaged, and the purpose of reducing the cost of the experimental device is achieved.
Description
Technical Field
The invention relates to the technical field of experimental devices, in particular to an experimental device for simulating water seepage durability of concrete.
Background
The problem of durability of concrete structures has been the focus of research in the field of civil engineering. The occurrence of premature failure of a concrete structure caused by insufficient durability is frequent, and huge economic loss is brought to the country. Therefore, the country puts corresponding requirements on the service life of the concrete structure, and particularly important strategic projects such as a cross-sea bridge, a submarine tunnel and the like require the service life of at least one hundred years. Therefore, researching the damage degradation mechanism of the concrete structure in the service environment, researching the concrete durability improving method and evaluating the service life of the concrete structure become research hotspots and difficulties in the field of structural concrete in recent years.
However, when the existing concrete is used for a durability test, some electronic detection elements are often used for detecting to obtain corresponding data, but the detection elements are very easily damaged during the concrete test, so that the cost of the whole test device is relatively high.
Disclosure of Invention
The invention aims to provide an experimental device for simulating the water seepage durability of concrete, which does not need an electric power detection element in the whole detection process, does not cause the damage of the electric power detection element and achieves the aim of reducing the cost of the experimental device.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an experimental apparatus for simulation concrete infiltration durability, includes the box, the box inner wall bottom is connected with the pillar, the pillar top is connected with the extension board, the mould type pipe has been placed at the extension board top, the equal opening setting in mould type pipe top and bottom, the rubber circle has been bonded to the mould tube bottom, rubber circle bottom and extension board top contact, mould pipe lateral wall is connected with the connecting plate, the connecting plate rotates through a bearing and is connected with the movable rod, the movable rod bottom runs through the extension board top and extends to the extension board below, the extension board bottom is connected with the fixed block, the standing groove has been seted up to the fixed block bottom, the movable rod bottom has the piece of placing through slide rail sliding connection, it is located inside and the standing groove cell wall contact to place the piece.
The box body is externally provided with a motor, the output end of the motor is connected with a rotating rod through a coupler, the output end of the rotating rod penetrates through the side wall of the box body and extends into the box body, the outer wall of the rotating rod is sleeved with a second gear, the top of the inner wall of the box body is rotatably connected with a screw rod through a second bearing, the outer part of the screw rod is sleeved with a first gear, the first gear is meshed with the second gear, the outer part of the screw rod is sleeved with a threaded sleeve, the threaded sleeve is in threaded connection with the screw rod, the outer wall of the threaded sleeve is connected with an L-shaped connecting rod, the other end of the L-shaped connecting rod is connected with a pressing plate, the number of the L-shaped connecting rods is two, the two L-shaped connecting rods are respectively positioned at two sides of the, the movable rod penetrates through the outer portion of the bottom end of the sleeve and extends to the outer wall of the sleeve, the outer wall of the movable rod, located outside the sleeve, is connected with one end of the Z-shaped rod, the inner diameter of the sleeve is consistent with the outer diameter of the movable rod, and the scale label is bonded on the front face of the movable rod.
Preferably, the threaded sleeve back is connected with a slide bar, the box inner wall has been seted up the spout, slide bar one end runs through the spout notch and extends to inside and the spout cell wall contact of spout, and the slide bar left side and the right side that are located inside the spout all contact with the spout cell wall.
Preferably, the outer wall of the screw is connected with a first limiting block and a second limiting block, the first limiting block is located above the threaded sleeve, and the second limiting block is located below the threaded sleeve.
Preferably, the outer wall of the box body is connected with a mounting plate, and the motor is fixedly mounted at the top of the mounting plate.
Preferably, the inner wall of the box body is obliquely provided with a camera.
Preferably, the number of the connecting plates is two, and the two connecting plates are respectively positioned on two sides of the model pipe.
Preferably, the shape of the pressing plate is matched with the shape of the inner wall of the model pipe, and the pressing plate is positioned right above the model pipe.
The invention provides an experimental device for simulating water seepage durability of concrete. The method has the following beneficial effects:
(1) according to the invention, the mounting plate, the motor, the rotating rod, the first gear, the second gear, the first limit block, the threaded sleeve, the screw rod, the L-shaped connecting rod, the second limit block, the pressing plate, the chute, the Z-shaped rod, the moving rod, the camera, the sleeve, the scale label and the spring are arranged, and the pressing plate is driven to move downwards by the rotation of the motor, so that the downward force of the pressing plate is calculated according to the hooke's law through the deformation distance of the spring, an electric power detection element is not needed in the whole detection process, the electric power detection element is not damaged, and the purpose of reducing the cost of the experimental device is achieved.
(2) According to the invention, the rubber ring, the die tube, the connecting plate, the fixed block, the placing groove, the placing block and the movable rod are arranged, the die tube is downwards extruded by utilizing the deformability of the rubber ring, so that the placing block is movably connected to slide into the placing groove, and the die tube is fixed.
(3) According to the invention, the rubber ring is arranged, and the bottom of the model pipe is in sealing contact with the top of the support plate through the rubber ring while the model pipe is fixed by downward extrusion, so that the situation of water leakage can not occur in the process of performing a simulation experiment by later stage water injection.
(4) According to the invention, the camera is arranged, so that the position and the distance of the scale label can be more clearly seen by the camera, the final result can be conveniently calculated by using the Hooke's law, and the final result obtained by the whole experimental device is more accurate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of A of FIG. 1;
FIG. 3 is a perspective view of a mold tube of the present invention;
FIG. 4 is a front view of the travel bar of the present invention;
fig. 5 is a side cross-sectional view of a slide bar of the present invention.
In the figure: the device comprises a box body 1, a support column 2, a rubber ring 3, a model tube 4, a connecting plate 5, a mounting plate 6, a motor 7, a rotating rod 8, a gear wheel I9, a gear wheel II 10, a stopper I11, a thread bush 12, a screw rod 13, a connecting rod 14L, a stopper II 15, a pressing plate 16, a sliding groove 17, a rod 18Z, a moving rod 19, a camera 20, a sleeve 21, a spring 22, a supporting plate 23, a fixing block 24, a placing groove 25, a placing block 26, a moving rod 27, a scale label 28 and a sliding rod 29.
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.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 5, the present invention provides a technical solution: an experimental device for simulating the water seepage durability of concrete comprises a box body 1, a supporting column 2 is fixedly connected to the bottom of the inner wall of the box body 1, a supporting plate 23 is fixedly connected to the top of the supporting column 2, a model tube 4 is placed on the top of the supporting plate 23, openings are formed in the top and the bottom of the model tube 4, a rubber ring 3 is bonded to the bottom of the model tube 4, the bottom of the rubber ring 3 is in contact with the top of the supporting plate 23, two connecting plates 5 are fixedly connected to the side wall of the model tube 4, the two connecting plates 5 are respectively positioned on two sides of the model tube 4, the connecting plates 5 are rotatably connected with a movable rod 27 through a bearing, the bottom of the movable rod 27 penetrates through the top of the supporting plate 23 and extends to the lower part of the supporting plate 23, a fixed block 24 is fixedly connected to the bottom of the supporting plate 23, a placement groove 25 is formed in, place 26 shapes of block and the unanimous of movable rod 27 bottom shape, through setting up rubber ring 3, mould type pipe 4, connecting plate 5, fixed block 24, standing groove 25, place block 26 and movable rod 27, utilize the flexible of rubber ring 3, extrude mould type pipe 5 downwards, thereby utilize and place 26 swing joint, make and place block 26 and slide inside standing groove 25, thereby fix model pipe 4, whole fixing device is very simple, and convenient the dismantlement, through setting up rubber ring 3, mould type pipe 4 bottom is passed through rubber ring 3 and extension board 23 top seal contact when utilizing downwards to extrude fixedly, the condition that can not have the condition of leaking to appear in the in-process that causes later stage water injection to carry out the simulation experiment.
The outer wall of the box body 1 is fixedly connected with a mounting plate 6, the motor 7 is fixedly mounted at the top of the mounting plate 6, the output end of the motor 7 is fixedly connected with a rotating rod 8 through a coupler, the output end of the rotating rod 8 penetrates through the side wall of the box body 1 and extends into the box body 1, the outer wall of the rotating rod 8 is sleeved with a gear II 10, the top of the inner wall of the box body 1 is rotatably connected with a screw 13 through a bearing II, the outer part of the screw 13 is sleeved with a gear I9, the gear I9 is meshed with the gear II 10, the gear I9 and the gear II 10 are both helical gears, the outer part of the screw 13 is sleeved with a threaded sleeve 12, the threaded sleeve 12 is in threaded connection with the screw 13, the outer wall of the screw 13 is fixedly connected with a stopper I11 and a stopper II 15, the stopper I11, the shape of the pressing plate 16 is matched with the shape of the inner wall of the model tube 4, the pressing plate 16 is positioned right above the model tube 4, the number of the L-shaped connecting rods 14 is two, the two L-shaped connecting rods 14 are respectively positioned at two sides of the threaded sleeve 12, the side wall of the L-shaped connecting rod 14 positioned at the right side is fixedly connected with a Z-shaped rod 18, the top of the inner wall of the box body 1 is fixedly connected with a sleeve 21, the top of the inner wall of the sleeve 21 is fixedly connected with a spring 22, the bottom end of the spring 22 is fixedly connected with a moving rod 19, the moving rod 19 penetrates through the outer part of the bottom end of the sleeve 21 and extends to the outer wall of the sleeve 21, the outer wall of the moving rod 19 positioned at the outer part of the sleeve 21 is fixedly connected with one end of the Z-shaped rod 18, the inner diameter of the sleeve 21 is consistent with the outer diameter of the moving, the left side and the right side of a sliding rod 29 positioned in the sliding groove 17 are both contacted with the wall of the sliding groove 17, a mounting plate 6, a motor 7, a rotating rod 8, a first gear 9, a second gear 10, a first limit block 11, a threaded sleeve 12, a screw 13, an L-shaped connecting rod 14, a second limit block 15, a pressing plate 16, the sliding groove 17, a Z-shaped rod 18, a moving rod 19, a camera 20, a sleeve 21, a scale label 28 and a spring 22 are arranged, the motor 7 rotates to drive the pressing plate 16 to move downwards, so that the distance of deformation of the spring 22 is utilized, the downward force of the pressing plate 16 is calculated according to the hooke's law, an electric power detection element is not needed in the whole detection process, the damage of the electric power detection element is not caused, the purpose of reducing the cost of the experimental device is achieved, the camera 20 is fixedly arranged on the inner wall of the box body 1 in an inclined manner, and, the Hooke's law is conveniently utilized to calculate the final result, so that the final result obtained by the whole experimental device is more accurate.
When in use, firstly, the model tube 4 is placed on the support plate 23, the model tube 4 is pressed downwards, the placing block 26 is pressed to be positioned at the same horizontal position with the placing groove 25 under the deformation of the rubber ring 3, the placing block 26 is slid into the placing groove 25, so that the model tube 4 is fixed, the bottom of the model tube 4 and the top of the support plate 23 are arranged in a sealing way due to the existence of the rubber ring 3, concrete is injected and solidifies, water is introduced upwards, after a period of time, the model tube 4 is taken out, the rotating rod 8 is driven to rotate by the starting motor 7, the rotating rod 8 rotates to drive the gear II 10 to rotate, so as to drive the gear I9 to rotate to drive the screw rod 13 to rotate, under the action of the slide rod 29 and the sliding groove 17, the threaded sleeve 12 is driven to move downwards, so as to drive the pressing plate 16 to move downwards, under the action of the Z-shaped rod 18, the moving rod 19 is driven to move downwards, through the scale label 28 on the surface of the Z-shaped rod 19, the moving distance of the Z-shaped rod 19, namely the deformation distance of the spring 22 is reflected, the downward force of the pressing plate 16 is calculated through Hooke's law, and an electric power detection element is not needed in the whole detection process and cannot be damaged.
In summary, the mounting plate 6, the motor 7, the rotating rod 8, the first gear 9, the second gear 10, the first limit block 11, the threaded sleeve 12, the screw 13, the L-shaped connecting rod 14, the second limit block 15, the pressing plate 16, the sliding groove 17, the Z-shaped rod 18, the moving rod 19, the camera 20, the sleeve 21, the scale label 28 and the spring 22 are arranged, the pressing plate 16 is driven to move downwards by the rotation of the motor 7, so that the downward force of the pressing plate 16 is calculated according to hooke's law through the deformation distance of the spring 22, an electric power detection element is not needed in the whole detection process, the electric power detection element cannot be damaged, and the purpose of reducing the cost of the experimental device is achieved.
Through setting up rubber circle 3, mould pipe 4, connecting plate 5, fixed block 24, standing groove 25, placing block 26 and movable rod 27, utilize the flexible of rubber circle 3, extrude mould pipe 5 downwards to the piece 26 swing joint is placed in the utilization, makes and places the inside piece 26 slip standing groove 25, thereby fixes mould pipe 4, and whole fixing device is very simple, and convenient the dismantlement.
Through setting up rubber circle 3, utilize downwards extrusion fixed in the time mould type pipe 4 bottom through rubber circle 3 and the sealed contact in support plate 23 top, cause the later stage water injection to carry out the in-process that the simulation experiment can not have the condition of leaking and appear.
Through setting up camera 20, utilize camera 20 to see out the position and the distance that scale label 28 removed more clearly, conveniently utilize hooke's law to calculate final result, make the result that whole experimental apparatus obtained at last more accurate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides an experimental apparatus for simulation concrete infiltration durability, includes box (1), its characterized in that: the bottom of the inner wall of the box body (1) is connected with a support column (2), the top of the support column (2) is connected with a support plate (23), a mold tube (4) is placed at the top of the support plate (23), the top and the bottom of the mold tube (4) are both opened, a rubber ring (3) is bonded at the bottom of the mold tube (4), the bottom of the rubber ring (3) is in contact with the top of the support plate (23), the side wall of the mold tube (4) is connected with a connecting plate (5), the connecting plate (5) is rotatably connected with a movable rod (27) through a bearing, the bottom of the movable rod (27) penetrates through the top of the support plate (23) and extends to the lower part of the support plate (23), the bottom of the support plate (23) is connected with a fixed block (24), a placement groove (25) is formed at the bottom of, the placing block (26) is positioned inside the placing groove (25) and is in contact with the groove wall of the placing groove (25);
the improved screw box is characterized in that a motor (7) is arranged outside the box body (1), the output end of the motor (7) is connected with a rotating rod (8) through a coupling, the output end of the rotating rod (8) penetrates through the side wall of the box body (1) and extends to the inside of the box body (1), a gear II (10) is sleeved on the outer wall of the rotating rod (8), a screw rod (13) is connected to the top of the inner wall of the box body (1) in a rotating mode through a bearing II, a gear I (9) is sleeved on the outside of the screw rod (13), the gear I (9) is meshed with the gear II (10), a thread sleeve (12) is sleeved on the outside of the screw rod (13), the thread sleeve (12) is in threaded connection with the screw rod (13), an L-shaped connecting rod (14) is connected to the outer wall of the thread sleeve (12), the other end of the L-shaped connecting rod (14) is connected with, l type connecting rod (14) lateral wall that is located the right side is connected with Z type pole (18), box (1) inner wall top is connected with sleeve pipe (21), sleeve pipe (21) inner wall top is connected with spring (22), spring (22) bottom is connected with carriage release lever (19), carriage release lever (19) run through sleeve pipe (21) bottom outside and extend to sleeve pipe (21) outer wall, and carriage release lever (19) outer wall that is located sleeve pipe (21) outside is connected with Z type pole (18) one end, sleeve pipe (21) internal diameter is unanimous with carriage release lever (19) external diameter, carriage release lever (19) openly bonds and has scale label (28).
2. The experimental device for simulating the water seepage durability of the concrete according to claim 1, wherein: threaded sleeve (12) back connection has slide bar (29), spout (17) have been seted up to box (1) inner wall, slide bar (29) one end runs through spout (17) notch and extends to inside and spout (17) cell wall contact of spout (17), and slide bar (29) left side and right side that are located spout (17) inside all contact with spout (17) cell wall.
3. The experimental device for simulating the water seepage durability of the concrete according to claim 1, wherein: the outer wall of the screw rod (13) is connected with a first limiting block (11) and a second limiting block (15), the first limiting block (11) is located above the threaded sleeve (12), and the second limiting block (15) is located below the threaded sleeve (12).
4. The experimental device for simulating the water seepage durability of the concrete according to claim 1, wherein: the outer wall of the box body (1) is connected with a mounting plate (6), and the motor (7) is fixedly mounted at the top of the mounting plate (6).
5. The experimental device for simulating the water seepage durability of the concrete according to claim 1, wherein: the inner wall of the box body (1) is obliquely provided with a camera (20).
6. The experimental device for simulating the water seepage durability of the concrete according to claim 1, wherein: the number of the connecting plates (5) is two, and the two connecting plates (5) are respectively positioned on two sides of the mold pipe (4).
7. The experimental device for simulating the water seepage durability of the concrete according to claim 1, wherein: the shape of the pressing plate (16) is matched with the shape of the inner wall of the mold pipe (4), and the pressing plate (16) is positioned right above the mold pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893300.XA CN110595980A (en) | 2019-09-20 | 2019-09-20 | Experimental device for simulation concrete infiltration durability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893300.XA CN110595980A (en) | 2019-09-20 | 2019-09-20 | Experimental device for simulation concrete infiltration durability |
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| Publication Number | Publication Date |
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| CN110595980A true CN110595980A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910893300.XA Pending CN110595980A (en) | 2019-09-20 | 2019-09-20 | Experimental device for simulation concrete infiltration durability |
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| CN (1) | CN110595980A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622242A (en) * | 2020-11-30 | 2021-04-09 | 滁州市润达机械科技有限公司 | Vacuum plastic suction film tool and vacuum film laminating piece for refrigerator inner container |
| CN112629768A (en) * | 2020-12-02 | 2021-04-09 | 国网北京市电力公司 | Novel water leakage sensor |
| CN112945722A (en) * | 2021-01-25 | 2021-06-11 | 周新星 | Bearing wall body bearing pressure simulation experiment device based on pressure sensing determination |
| CN117723403A (en) * | 2024-02-07 | 2024-03-19 | 三亚华盛水泥粉磨有限公司 | Acceleration test system for concrete durability |
| CN117723403B (en) * | 2024-02-07 | 2024-04-19 | 三亚华盛水泥粉磨有限公司 | Acceleration test system for concrete durability |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470107A (en) * | 2007-12-27 | 2009-07-01 | 河南理工大学 | Concrete body and test instrument and method for its permeation performance with other medium bonding surface |
| CN108877419A (en) * | 2018-07-16 | 2018-11-23 | 邢台鸿儒知识产权服务有限责任公司 | A kind of portable physical experimental provision |
| CN208921382U (en) * | 2018-08-21 | 2019-05-31 | 太阳神(珠海)电子有限公司 | A kind of head suspension elasticity test device |
| CN209027962U (en) * | 2018-11-03 | 2019-06-25 | 合肥市天秤水利工程质量检测有限公司 | A kind of concrete impervious instrument |
-
2019
- 2019-09-20 CN CN201910893300.XA patent/CN110595980A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470107A (en) * | 2007-12-27 | 2009-07-01 | 河南理工大学 | Concrete body and test instrument and method for its permeation performance with other medium bonding surface |
| CN108877419A (en) * | 2018-07-16 | 2018-11-23 | 邢台鸿儒知识产权服务有限责任公司 | A kind of portable physical experimental provision |
| CN208921382U (en) * | 2018-08-21 | 2019-05-31 | 太阳神(珠海)电子有限公司 | A kind of head suspension elasticity test device |
| CN209027962U (en) * | 2018-11-03 | 2019-06-25 | 合肥市天秤水利工程质量检测有限公司 | A kind of concrete impervious instrument |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112622242A (en) * | 2020-11-30 | 2021-04-09 | 滁州市润达机械科技有限公司 | Vacuum plastic suction film tool and vacuum film laminating piece for refrigerator inner container |
| CN112629768A (en) * | 2020-12-02 | 2021-04-09 | 国网北京市电力公司 | Novel water leakage sensor |
| CN112629768B (en) * | 2020-12-02 | 2022-09-13 | 国网北京市电力公司 | Novel water leakage sensor |
| CN112945722A (en) * | 2021-01-25 | 2021-06-11 | 周新星 | Bearing wall body bearing pressure simulation experiment device based on pressure sensing determination |
| CN117723403A (en) * | 2024-02-07 | 2024-03-19 | 三亚华盛水泥粉磨有限公司 | Acceleration test system for concrete durability |
| CN117723403B (en) * | 2024-02-07 | 2024-04-19 | 三亚华盛水泥粉磨有限公司 | Acceleration test system for concrete durability |
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Application publication date: 20191220 |
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