CN113324835A - Strength detection device for building engineering - Google Patents
Strength detection device for building engineering Download PDFInfo
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- CN113324835A CN113324835A CN202110588365.0A CN202110588365A CN113324835A CN 113324835 A CN113324835 A CN 113324835A CN 202110588365 A CN202110588365 A CN 202110588365A CN 113324835 A CN113324835 A CN 113324835A
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 238000004140 cleaning Methods 0.000 claims abstract description 91
- 238000003825 pressing Methods 0.000 claims abstract description 62
- 230000001681 protective effect Effects 0.000 claims abstract description 50
- 238000012360 testing method Methods 0.000 claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000010276 construction Methods 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 3
- 239000012634 fragment Substances 0.000 abstract description 9
- 230000004888 barrier function Effects 0.000 description 3
- 238000009435 building construction Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to the technical field of constructional engineering detection equipment, and discloses a strength detection device for constructional engineering, which comprises a pressure tester body; the cleaning device also comprises a protective cover and a cleaning component A; the protective cover is arranged at the lower part of the top plate through a lifting assembly; the protective cover is sleeved outside the pressing plate and the threaded rod; the projection of the protective cover covers the pressing table; the lifting assembly drives the protective cover to move up and down between the bottom plate and the top plate; the cleaning assembly A is arranged on the upper part of the bottom plate through a driving assembly; the driving assembly drives the cleaning assembly A to move left and right, and the upper end face of the lower pressing table is cleaned. The invention has simple structure and convenient operation; the protective cover is transparent, so that the condition of the test piece can be visually observed, and small fragments are effectively prevented from splashing to hurt operators; clean subassembly A, clean subassembly B and can clean down and push down platform, lower plate, improve and clean efficiency, practice thrift operating personnel's the time of cleaning, further improved test efficiency.
Description
Technical Field
The invention relates to the technical field of constructional engineering detection equipment, in particular to a strength detection device for constructional engineering.
Background
The building engineering refers to an engineering entity formed by the construction of various building constructions and their auxiliary facilities and the installation of lines, pipelines and equipment matched with them. The building construction is characterized in that the building construction is provided with a top cover, a beam column, a wall, a foundation and a construction capable of forming an internal space, and the engineering required by production, living, learning and public activities of people is met.
The performance of concrete, one of the most common building materials in modern buildings, directly affects the structural strength of the buildings and is related to the safety of the buildings, so before the concrete is used, the performance of the concrete is usually tested. For the detection of the mechanical performance of concrete, mainly relating to the structural strength of the concrete after forming, a concrete pressure tester is usually used for detection, and the concrete pressure tester is used for casting a batch of concrete test blocks with specific sizes, and the concrete test blocks are extruded by the concrete pressure tester until the test blocks are broken, so that each data value is obtained. In the actual use process, however, the concrete test block may burst and splash into small fragments during extrusion, which affects the personal safety of the detecting personnel; secondly, after each test, after the large fragments on the test bed are removed, the small fragments or particles need to be thoroughly cleaned, but under the condition that the number of concrete samples is large, the manual cleaning speed is low, and the test detection efficiency of the test samples is greatly reduced.
Disclosure of Invention
The invention aims to overcome the technical problems in the prior art and provides a strength detection device for constructional engineering.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
a strength detection device for constructional engineering comprises a pressure tester body; the pressure testing machine body comprises a bottom plate, a top plate, four stand columns for connecting the bottom plate and the top plate, a lower pressing table arranged on the bottom plate, a threaded rod arranged on the top plate and a pressing plate at the tail part of the threaded rod;
the strength detection device also comprises a protective cover and a cleaning component A;
the pressing platform is cylindrical, and the pressing plate is circular; the diameter of the pressing plate is the same as that of the pressing table, and the diameter of the pressing plate is larger than that of the threaded rod; the pressing platform, the pressing plate and the threaded rod are coaxial;
the protective cover is arranged at the lower part of the top plate through a lifting assembly; the protective cover is sleeved outside the pressing plate and the threaded rod; the projection of the protective cover covers the pressing table; the lifting assembly drives the protective cover to move up and down between the bottom plate and the top plate;
the cleaning assembly A is arranged on the upper part of the bottom plate through a driving assembly; the driving assembly drives the cleaning assembly A to move left and right, and the upper end face of the lower pressing table is cleaned.
Preferably, the protective cover is a transparent cover body with an integrated structure and comprises a lower surrounding blocking part and an upper blocking part; the lower surrounding baffle part is in a regular quadrangular shape; the upper blocking part is in a regular quadrangular frustum pyramid shape; the protective cover is coaxial with the pressing platform; the upper bottom surface of the upper blocking part is smaller than the lower bottom surface of the upper blocking part.
Preferably, the lifting assembly comprises a lifting screw rod, a lifting guide rod, a thread sleeve, a guide sleeve and a driving motor A;
the left side surface and the right side surface of the upper blocking part are symmetrically and fixedly provided with a connecting block A and a connecting block B;
the threaded sleeve and the guide sleeve are symmetrically arranged on the top plate by taking the threaded rod as a symmetric axis; the threaded sleeve is rotatably connected with the top plate, and the guide sleeve is fixedly connected with the top plate;
the lifting screw is in threaded connection with the threaded sleeve, and the lifting guide rod is in sliding connection with the guide sleeve; the tail part of the lifting screw is fixedly connected with the connecting block A, and the lifting guide rod is fixedly connected with the connecting block B;
the driving motor A drives the thread bush to rotate, and the lifting screw drives the protective cover to move up and down.
Preferably, the threaded sleeve is rotatably connected with the top plate through a bearing; the upper end surface of the threaded sleeve is higher than the upper end surface of the top plate; a bevel gear is fixed outside the thread sleeve higher than the top plate; the rotating end of the driving motor A drives the bevel gear to rotate.
Preferably, the driving assembly comprises two driving screws which are symmetrical front and back, and a moving rod which moves left and right on the two driving screws; the driving screw is rotatably arranged at the upper part of the bottom plate;
the left ends of the two driving screws are respectively provided with a driving motor B and a driving motor C; the driving motor B and the driving motor C are synchronously driven; a driving thread sleeve is fixed at the front end and the rear end of the movable rod; the two driving thread sleeves are respectively in threaded connection with the front driving screw and the rear driving screw; when the driving motor B and the driving motor C synchronously drive the driving screw to rotate, the movable rod moves left and right on the driving screw.
Preferably, the projection of the protective cover falls between the front and the rear driving screws; the front and rear positions of the two driving screws are positioned between the front and rear upright posts; the left ends of the two driving screws are positioned on the left side of the left upright post; the right ends of the two driving screws are positioned on the right side of the right upright post.
Preferably, the cleaning assembly A comprises a cleaning brush A and a lantern ring A fixedly installed on the upper portion of the cleaning brush A; the lantern ring A is fixedly connected with the movable rod, and the length of the cleaning brush A is not less than the diameter of the lower pressing platform; when the moving rod drives the cleaning brush A to move, the bristles of the cleaning brush A can clean the upper end face of the whole lower pressing table.
Preferably, the intensity detection device further comprises a cleaning component B; the cleaning assembly B comprises a cleaning brush B, a cleaning brush C, two bending rods, a lantern ring B and a lantern ring C which are symmetrical front and back; the opposite end surfaces of the cleaning brush B and the cleaning brush C are semicircular; the cleaning brush B is fixedly connected with the lantern ring B through a bending rod, and the cleaning brush C is fixedly connected with the lantern ring C through a bending rod; the lantern ring B and the lantern ring C are connected with the movable rod in a sliding mode; a spring is connected between the lantern ring B and the driving threaded sleeve on the front side; a spring is connected between the lantern ring C and the driving threaded sleeve on the rear side.
Preferably, the structures of the cleaning brush B and the cleaning brush C are the same; the sum of the lengths of the cleaning brush B and the cleaning brush C is larger than the side length of the square projection of the protective cover.
Preferably, the lower end face of the protective cover is fixed with a rubber elastic layer.
The invention has the following action principle:
when the device is used, a concrete test piece is placed on the lower pressing table, and then the position of the pressing plate is adjusted. After the test piece and the pressing plate are adjusted, the lifting assembly is controlled to drive the protective cover to move downwards until the protective cover is contacted with the bottom plate, and then the test can be started. Because the height of the concrete test piece is certain, the height of one protective cover only needs to cover the lower pressing table, the test piece, the pressing plate and part of the threaded rod.
The protective cover is transparent, so that the condition of the test piece can be visually observed, and small fragments are effectively prevented from splashing to hurt operators. And the protective cover is convenient to use and easy to lift. According to the structure of the protective cover, the lower enclosure part is convenient to observe, and fragments splashed in the horizontal direction are blocked; the upper blocking part prevents fragments from flying out from the upper part, and effective protection can be formed. The lower end face of the protective cover is fixed with the rubber elastic layer, so that a good sealing effect can be achieved; the lower end face of the protective cover is prevented from impacting the bottom plate.
After the extrusion of the test piece is completed, the protective cover is controlled to move upwards, then the pressing plate moves upwards, the large test piece after extrusion on the pressing table is cleaned and removed, and a part of small fragments or dust can be remained on the pressing table and the bottom plate. The drive assembly can be controlled to drive the cleaning brush A to move left and right, the brush hair of the cleaning brush A cleans the upper end face of the lower pressing table, the upper pressing table is kept clean, and a next test piece can be stably placed on the lower pressing table.
The cleaning brush A mainly cleans the upper end face of the lower pressing table. The cleaning assembly B mainly cleans a portion of the floor that would be covered by the hood. Cleaning subassembly B mainly includes brush B, brush C, and at the in-process that the carriage release lever removed, brush B, brush C bump down press the platform after, can relative motion open, move along the carriage release lever, and the spring on the carriage release lever gives elasticity this moment for brush C, brush B paste and tightly press the platform down. When the cleaning brush B leaves the lower pressing platform, the cleaning brush B and the cleaning brush C are closed under the action of the elastic force of the spring, and then the cleaning of the bottom plate is completed. The opposite end surfaces of the cleaning brush B and the cleaning brush C are semicircular, so that the cleaning brush B and the cleaning brush C can be conveniently and oppositely opened. The use of the bending rod can avoid the cleaning brush A while meeting the fixing requirement. After cleaning, the cleaning brush A, the cleaning brush B and the cleaning brush C can be moved to the leftmost side or the rightmost side of the driving screw rod, so that the protective cover can smoothly move upwards or downwards, and the use of the protective cover is not hindered.
The components which are not limited in the invention are all conventional means in the field, for example, the pressure tester body, the driving motor a, the driving motor B, the driving motor C and the like are all selected from those commonly used in the field, and a person skilled in the art can select the model and the installation mode thereof according to actual use requirements, so as to clearly know how to install and control the components, and the detailed description is omitted.
The invention achieves the following beneficial effects:
the invention has simple structure and convenient operation; the protective cover is transparent, so that the condition of the test piece can be visually observed, and small fragments are effectively prevented from splashing to hurt operators; clean subassembly A, clean subassembly B and can clean down and push down platform, lower plate, improve and clean efficiency, practice thrift operating personnel's the time of cleaning, further improved test efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line E-E of FIG. 1;
FIG. 3 is a right side view of sweeping assemblies A, B of FIG. 1;
FIG. 4 is a schematic view of the sweeping assembly B in an open state;
fig. 5 is a schematic view of the shield contacting the base plate.
In the figure: 1. a base plate; 2. a top plate; 3. a column; 4. pressing down the platform; 5. a threaded rod; 6. pressing a plate; 7. a protective cover; 8. a lower surrounding blocking part; 9. an upper barrier portion; 10. a lifting screw; 11. a lifting guide rod; 12. a threaded sleeve; 13. a guide sleeve; 14. driving a motor A; 15. connecting a block A; 16. connecting block B; 17. a drive screw; 18. a travel bar; 19. driving a motor B; 20. driving a motor C; 21. driving the threaded sleeve; 22. cleaning a brush A; 23. a lantern ring A; 24. a cleaning brush B; 25. a cleaning brush C; 26. a bending rod; 27. a lantern ring B; 28. a collar C; 29. a spring.
Detailed Description
The invention will be further described with reference to the drawings and specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 5, the strength detection device for construction engineering comprises a pressure tester body; the pressure testing machine body comprises a bottom plate 1, a top plate 2, four stand columns 3 for connecting the bottom plate 1 with the top plate 2, a pressing platform 4 installed on the bottom plate 1, a threaded rod 5 installed on the top plate 2 and a pressing plate 6 at the tail part of the threaded rod 5. The intensity detection device also comprises a protective cover 7 and a cleaning assembly A.
The pressing table 4 is cylindrical, and the pressing plate 6 is circular; the diameter of the pressing plate 6 is the same as that of the lower pressing table 4, and the diameter of the pressing plate 6 is larger than that of the threaded rod 5; the pressing platform 4, the pressing plate 6 and the threaded rod 5 are coaxial.
The protective cover 7 is arranged at the lower part of the top plate 2 through a lifting assembly; the protective cover 7 is sleeved outside the pressure plate 6 and the threaded rod 5; the projection of the protective cover 7 covers the pressing table 4; the lifting assembly drives the shield 7 to move up and down between the base plate 1 and the top plate 2.
The cleaning assembly A is arranged on the upper part of the bottom plate 1 through a driving assembly; the driving component drives the cleaning component A to move left and right, and cleans the upper end surface of the lower pressing platform 4.
The protective cover 7 is a transparent cover body with an integrated structure and comprises a lower surrounding blocking part 8 and an upper blocking part 9; the lower surrounding baffle part 8 is in a regular quadrangular shape; the upper blocking part 9 is in a regular quadrangular frustum pyramid shape; the protective cover 7 is coaxial with the pressing platform 4; the upper bottom surface of the upper barrier 9 is smaller than the lower bottom surface of the upper barrier 9.
The lifting assembly comprises a lifting screw rod 10, a lifting guide rod 11, a threaded sleeve 12, a guide sleeve 13 and a driving motor A14.
The left side surface and the right side surface of the upper blocking part 9 are symmetrically fixed with a connecting block A15 and a connecting block B16.
The threaded sleeve 12 and the guide sleeve 13 are symmetrically arranged on the top plate 2 left and right by taking the threaded rod as a symmetry axis; the threaded sleeve 12 is rotatably connected with the top plate 2 through a bearing, and the guide sleeve 13 is fixedly connected with the top plate 2.
The lifting screw 10 is in threaded connection with the threaded sleeve 12, and the lifting guide rod 11 is in sliding connection with the guide sleeve 13; the tail of the lifting screw 10 is fixedly connected with a connecting block A15, and the lifting guide rod 11 is fixedly connected with a connecting block B16.
The upper end surface of the threaded sleeve 12 is higher than the upper end surface of the top plate 2; a bevel gear is fixed outside the thread sleeve higher than the top plate; the rotating end of the driving motor A14 drives the bevel gear to rotate, and the lifting screw 10 drives the protective cover 7 to move up and down.
The driving component comprises two driving screw rods 17 which are symmetrical front and back, and a moving rod 18 which moves left and right on the two driving screw rods 17; the driving screw 17 is rotatably installed at the upper portion of the base plate 1.
The left ends of the two driving screws 17 are respectively provided with a driving motor B19 and a driving motor C20; the driving motor B19 and the driving motor C20 are driven synchronously; a driving threaded sleeve 21 is fixed at the front end and the rear end of the movable rod 18; the two driving thread sleeves 21 are respectively in threaded connection with the front driving screw 17 and the rear driving screw 17; when the drive screw 17 is synchronously driven to rotate by the drive motor B19 and the drive motor C20, the moving rod 18 moves left and right on the drive screw 17.
The projection of the protective cover 7 falls between the front and rear two drive screws 17; the front and back positions of the two driving screws 17 are positioned between the front and back upright posts; the left ends of the two driving screws 17 are positioned on the left side of the left upright post; the right ends of the two drive screws 17 are located on the right side of the right upright.
The cleaning assembly A comprises a cleaning brush A22 and a collar A23 fixedly arranged at the upper part of a cleaning brush A22; the lantern ring A23 is fixedly connected with the moving rod 18, and the length of the cleaning brush A22 is not less than the diameter of the lower pressing table 4; when the moving rod 18 drives the cleaning brush A22 to move, the bristles of the cleaning brush A22 can clean the upper end surface of the whole lower pressing platform 4.
The intensity detection device also comprises a cleaning component B; the cleaning assembly B comprises a cleaning brush B24, a cleaning brush C25, two bent rods 26, a lantern ring B27 and a lantern ring C28 which are symmetrical in front and back; the opposite end surfaces of the cleaning brush B24 and the cleaning brush C25 are semicircular; the cleaning brush B24 is fixedly connected with the lantern ring B27 through the bent rod 26, and the cleaning brush C25 is fixedly connected with the lantern ring C28 through the bent rod 26; the lantern ring B27 and the lantern ring C28 are connected with the moving rod 18 in a sliding way; a spring 29 is connected between the lantern ring B27 and the driving threaded sleeve 21 on the front side; a spring is connected between the lantern ring C25 and the rear driving threaded sleeve.
The cleaning brush B24 and the cleaning brush C25 have the same structure; the sum of the lengths of the cleaning brush B24 and the cleaning brush C25 is larger than the side length of the square projection of the protective cover 7.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (10)
1. A strength detection device for constructional engineering comprises a pressure tester body; the pressure testing machine body comprises a bottom plate, a top plate, four stand columns for connecting the bottom plate and the top plate, a lower pressing table arranged on the bottom plate, a threaded rod arranged on the top plate and a pressing plate at the tail part of the threaded rod; the method is characterized in that:
the strength detection device also comprises a protective cover and a cleaning component A;
the pressing platform is cylindrical, and the pressing plate is circular; the diameter of the pressing plate is the same as that of the pressing table, and the diameter of the pressing plate is larger than that of the threaded rod; the pressing platform, the pressing plate and the threaded rod are coaxial;
the protective cover is arranged at the lower part of the top plate through a lifting assembly; the protective cover is sleeved outside the pressing plate and the threaded rod; the projection of the protective cover covers the pressing table; the lifting assembly drives the protective cover to move up and down between the bottom plate and the top plate;
the cleaning assembly A is arranged on the upper part of the bottom plate through a driving assembly; the driving assembly drives the cleaning assembly A to move left and right, and the upper end face of the lower pressing table is cleaned.
2. The strength detection device for construction engineering according to claim 1, characterized in that: the protective cover is a transparent cover body with an integrated structure and comprises a lower surrounding blocking part and an upper blocking part; the lower surrounding baffle part is in a regular quadrangular shape; the upper blocking part is in a regular quadrangular frustum pyramid shape; the protective cover is coaxial with the pressing platform; the upper bottom surface of the upper blocking part is smaller than the lower bottom surface of the upper blocking part.
3. The strength detection device for construction engineering according to claim 2, characterized in that: the lifting assembly comprises a lifting screw rod, a lifting guide rod, a threaded sleeve, a guide sleeve and a driving motor A;
the left side surface and the right side surface of the upper blocking part are symmetrically and fixedly provided with a connecting block A and a connecting block B;
the threaded sleeve and the guide sleeve are symmetrically arranged on the top plate by taking the threaded rod as a symmetric axis; the threaded sleeve is rotatably connected with the top plate, and the guide sleeve is fixedly connected with the top plate;
the lifting screw is in threaded connection with the threaded sleeve, and the lifting guide rod is in sliding connection with the guide sleeve; the tail part of the lifting screw is fixedly connected with the connecting block A, and the lifting guide rod is fixedly connected with the connecting block B;
the driving motor A drives the thread bush to rotate, and the lifting screw drives the protective cover to move up and down.
4. The strength detection device for construction engineering according to claim 3, characterized in that: the threaded sleeve is rotationally connected with the top plate through a bearing; the upper end surface of the threaded sleeve is higher than the upper end surface of the top plate; a bevel gear is fixed outside the thread sleeve higher than the top plate; the rotating end of the driving motor A drives the bevel gear to rotate.
5. The strength detection device for construction engineering according to claim 4, characterized in that: the driving component comprises two driving screw rods which are symmetrical front and back and a moving rod which moves left and right on the two driving screw rods; the driving screw is rotatably arranged at the upper part of the bottom plate;
the left ends of the two driving screws are respectively provided with a driving motor B and a driving motor C; the driving motor B and the driving motor C are synchronously driven; a driving thread sleeve is fixed at the front end and the rear end of the movable rod; the two driving thread sleeves are respectively in threaded connection with the front driving screw and the rear driving screw; when the driving motor B and the driving motor C synchronously drive the driving screw to rotate, the movable rod moves left and right on the driving screw.
6. The strength detection device for construction engineering according to claim 5, characterized in that: the projection of the protective cover falls between the front driving screw and the rear driving screw; the front and rear positions of the two driving screws are positioned between the front and rear upright posts; the left ends of the two driving screws are positioned on the left side of the left upright post; the right ends of the two driving screws are positioned on the right side of the right upright post.
7. The strength detection device for construction engineering according to claim 6, characterized in that: the cleaning component A comprises a cleaning brush A and a lantern ring A fixedly arranged on the upper part of the cleaning brush A; the lantern ring A is fixedly connected with the movable rod, and the length of the cleaning brush A is not less than the diameter of the lower pressing platform; when the moving rod drives the cleaning brush A to move, the bristles of the cleaning brush A can clean the upper end face of the whole lower pressing table.
8. The strength detection device for construction engineering according to claim 7, characterized in that: the intensity detection device also comprises a cleaning component B; the cleaning assembly B comprises a cleaning brush B, a cleaning brush C, two bending rods, a lantern ring B and a lantern ring C which are symmetrical front and back; the opposite end surfaces of the cleaning brush B and the cleaning brush C are semicircular; the cleaning brush B is fixedly connected with the lantern ring B through a bending rod, and the cleaning brush C is fixedly connected with the lantern ring C through a bending rod; the lantern ring B and the lantern ring C are connected with the movable rod in a sliding mode; a spring is connected between the lantern ring B and the driving threaded sleeve on the front side; a spring is connected between the lantern ring C and the driving threaded sleeve on the rear side.
9. The strength detection device for construction engineering according to claim 8, characterized in that: the cleaning brush B and the cleaning brush C have the same structure; the sum of the lengths of the cleaning brush B and the cleaning brush C is larger than the side length of the square projection of the protective cover.
10. The strength detection device for construction engineering according to claim 9, characterized in that: the lower end face of the protective cover is fixed with a rubber elastic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588365.0A CN113324835B (en) | 2021-05-28 | 2021-05-28 | Strength detection device for building engineering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588365.0A CN113324835B (en) | 2021-05-28 | 2021-05-28 | Strength detection device for building engineering |
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| CN113324835A true CN113324835A (en) | 2021-08-31 |
| CN113324835B CN113324835B (en) | 2023-02-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441312A (en) * | 2022-01-27 | 2022-05-06 | 东北林业大学 | Building material strength detection device |
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