CN117629757B - Building main body structure detection device and detection method - Google Patents
Building main body structure detection device and detection method Download PDFInfo
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- CN117629757B CN117629757B CN202410108008.3A CN202410108008A CN117629757B CN 117629757 B CN117629757 B CN 117629757B CN 202410108008 A CN202410108008 A CN 202410108008A CN 117629757 B CN117629757 B CN 117629757B
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- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 6
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to the technical field of building detection devices and provides a detection device and a detection method for a main structure of a building. The beneficial effects of the invention are as follows: the conveying mechanism is used for conveying the building samples, strength and compression resistance of the building samples are detected through the strength detection mechanism and the pressure-bearing detection mechanism in the conveying process, and meanwhile, the linkage mechanism can reduce part of manpower and the power mechanism in the detecting process, so that the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to a detection device and a detection method for a main body structure of a building.
Background
Building body structure detection refers to systematic detection and assessment of the body structure of a building. The device is mainly used for detecting the strength and the bearing capacity of the main body mechanism, can find and solve the problems in time, and ensures that the quality of the main body structure of the building can meet the requirements.
The detection device in the prior art has no uniformity, detection work is scattered, for example, a traditional strength test instrument is adopted, a handheld instrument is needed for detection, and the degree of automation is not high.
Disclosure of Invention
The invention provides a detection device and a detection method for a building main body structure, which can comprehensively detect the strength and the bearing capacity of a building main body structure sample, and can save part of manpower by arranging a linkage mechanism, thereby improving the detection efficiency.
For this purpose, the technical scheme adopted by the first aspect of the invention is as follows: the building main body structure detection device comprises a main frame body, a conveying mechanism is arranged on the main frame body, a support is arranged on the main frame body, an intensity detection mechanism and a linkage mechanism which is linked with the intensity detection mechanism are arranged on the support, a mounting frame is further arranged on the main frame body, and a pressure-bearing detection mechanism is arranged on the mounting frame.
By adopting the technical scheme: the conveying mechanism is used for conveying the building samples, strength and compression resistance of the building samples are detected through the strength detection mechanism and the pressure-bearing detection mechanism in the conveying process, and meanwhile, the linkage mechanism can reduce part of manpower and the power mechanism in the detecting process, so that the detection efficiency is improved.
Optionally, the support includes the stand that sets up in main support body both sides, two the upper end fixed mounting of stand has the diaphragm, intensity detection mechanism installs on the diaphragm.
By adopting the technical scheme: during detection, the sample passes through the space between the two upright posts, the strength of the sample can be detected through the strength detection mechanism, and the transverse plate is used as an installation carrier in the invention.
Optionally, the intensity detection mechanism comprises a thickness measuring component arranged on one side of the transverse plate facing the incoming material and an intensity detection instrument arranged on the other side of the transverse plate, and the intensity detection instrument is connected with the power unit.
By adopting the technical scheme: the power unit can adopt cylinder or hydro-cylinder etc. and thickness measuring assembly can detect the thickness of sample, can throw into the sample with the nail in it in through the intensity detecting instrument, according to the degree of depth that the nail entered into the sample, survey sample's intensity.
Optionally, two of the upright posts are provided with a cross beam, and a linkage mechanism is arranged between the cross beam and the strength detecting instrument as well as between the cross beam and the power unit.
By adopting the technical scheme: through setting up link gear, can drive intensity detecting instrument action when the power unit action, including promoting the surface of sample with intensity detecting instrument to and the pulling intensity detecting instrument is with penetrating the nail and is beaten inside the sample, reduced the process of manpower pulling intensity detecting instrument, improved detection efficiency.
Optionally, the link gear includes the elasticity trigger piece that sets up on the crossbeam, sets up the hanging groove on the output pole of power unit, articulates the hanging pole on intensity detecting instrument, the end setting of hanging pole is in the hanging groove, still includes the face of hanging of setting in diaphragm bottom and hanging pole upper end.
By adopting the technical scheme: through setting up the elasticity and triggering the piece, in the power pack pushes down the in-process that intensity detecting instrument moved downwards, the elasticity triggers the piece and withdraws back when intensity detecting instrument targets in place, the elasticity triggers the piece and pops out, remove the power pack and be connected with intensity detecting instrument, at this moment because the hanging rod is in the hanging groove, the power pack upward motion can drive the action of hanging rod, the inside elastic component of pulling intensity detecting instrument makes its compression, after the hanging rod removes to a take the altitude, two dismantlement face portion contacts, make hanging rod and hanging groove break away from, thereby will penetrate the nail and throw into the inside detection of carrying out sample intensity of sample under the resilience effect of elastic component.
Optionally, the inside cavity of output pole, intensity detecting instrument upper end is equipped with the connecting rod, the connecting rod is embedded into the output pole inside, link gear still includes the passive contact spare that sets up between connecting rod and output pole, passive contact spare is connected with the timesharing contact of elastic triggering piece.
By adopting the technical scheme: after the lower end of the intensity detection instrument contacts the sample, the elastic triggering piece returns at the moment, the passive contact piece is propped up, the connection between the connecting rod and the output rod is released, and the elastic contact piece is propped against the upper side of the intensity detection instrument, so that the intensity detection instrument does not act in the upward moving process of the output rod, and the output rod can drive the hanging rod to upward move to compress the elastic piece in the intensity detection instrument, so that the energy storage of the elastic piece is ready for shooting nails.
Optionally, the elastic triggering piece includes the telescopic link of penetrating on the crossbeam, one side that the power unit was kept away from to the telescopic link is equipped with the baffle, be equipped with the spring on the telescopic link between baffle and the crossbeam, the other end of telescopic link is equipped with the contact block, the contact block includes slip inclined plane and top joint plane, top joint plane timesharing contact passive contact piece.
By adopting the technical scheme: the effect of slip inclined plane is that can drive the telescopic link and retract at the in-process that intensity measuring instrument moved down, and the planar effect of top connects can be with passive contact piece top back makes connecting rod and telescopic link contact connection, and intensity measuring instrument can be pushed down to the downside of contact piece simultaneously, fixes it.
Optionally, the passive contact piece includes the bullet beans that set up on the connecting rod, be equipped with on the output pole and supply the bullet beans to penetrate the perforation that contracts.
By adopting the technical scheme: in the process that the telescopic rod drives the contact block to return, the ejection plane can eject the elastic beans back into the perforation, and the connection between the connecting rod and the telescopic rod is released.
Optionally, the thickness measuring assembly includes the laser thickness gauge of setting on the diaphragm, pressure-bearing detection mechanism is including installing a plurality of pressure components that exert pressure on the mounting bracket, the subassembly that exert pressure is including setting up the power piece on the mounting bracket, the power piece lower extreme is connected and is pressed the piece.
By adopting the technical scheme: the pressure block can be pressed onto the sample through the power piece, and the pressure applied by the power piece can detect the compressive capacity of the sample.
In a second aspect, the present invention provides a method for detecting a building main structure by using the building main structure detection device, including the following steps:
S1, placing a detection sample on a conveying mechanism, and conveying the detection sample to an intensity detection mechanism by the conveying mechanism to detect the thickness and intensity of the sample;
And S2, after the intensity detection is finished, the conveying mechanism drives the sample to be conveyed to the pressure-bearing detection mechanism to detect the pressure resistance of the sample.
The working principle and the beneficial effects of the invention are as follows:
1. the conveying mechanism is used for conveying the building samples, strength and compression resistance of the building samples are detected through the strength detection mechanism and the pressure-bearing detection mechanism in the conveying process, and meanwhile, the linkage mechanism can reduce part of manpower and the power mechanism in the detecting process, so that the detection efficiency is improved.
2. The thickness measuring assembly can detect the thickness of the sample, the nail in the thickness measuring assembly can be driven into the sample through the strength detecting instrument, and the strength of the sample is measured according to the depth of the nail entering the sample.
3. Through setting up the elasticity and triggering the piece, in the power pack pushes down the in-process that intensity detecting instrument moved downwards, the elasticity triggers the piece and withdraws back when intensity detecting instrument targets in place, the elasticity triggers the piece and pops out, remove the power pack and be connected with intensity detecting instrument, at this moment because the hanging rod is in the hanging groove, the power pack upward motion can drive the action of hanging rod, the inside elastic component of pulling intensity detecting instrument makes its compression, after the hanging rod removes to a take the altitude, two dismantlement face portion contacts, make hanging rod and hanging groove break away from, thereby will penetrate the nail and throw into the inside detection of carrying out sample intensity of sample under the resilience effect of elastic component.
4. The pressure block can be pressed onto the sample through the power piece, and the pressure applied by the power piece can detect the compressive capacity of the sample.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic side view of the portion of FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a power unit, an intensity detection instrument, and a linkage mechanism according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a linkage mechanism according to an embodiment of the present invention.
In the figure: 100. a main frame body; 200. a conveying mechanism; 300. a bracket; 310. a column; 320. a cross plate; 330. a cross beam; 400. an intensity detection mechanism; 410. a thickness measuring assembly; 420. an intensity detection instrument; 430. a power unit; 440. an output lever; 500. a linkage mechanism; 510. an elastic trigger; 511. a telescopic rod; 512. a baffle; 513. a spring; 514. a contact block; 5141. a sliding inclined plane; 5142. a top connection plane; 520. a hooking groove; 530. a connecting rod is hung; 540. unhooking the face; 550. a connecting rod; 560. a passive contact; 600. a mounting frame; 700. the pressure-bearing detection mechanism; 710. a power member; 720. and pressurizing the block.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-4, this embodiment provides a building main body structure detection device, including a main frame body 100, a conveying mechanism 200 is provided on the main frame body 100, the conveying mechanism 200 may adopt a chain plate structure, a support 300 is provided on the main frame body 100, a strength detection mechanism 400 and a linkage mechanism 500 linked with the strength detection mechanism 400 are provided on the support 300, a mounting frame 600 is further provided on the main frame body 100, and a pressure bearing detection mechanism 700 is provided on the mounting frame 600.
The basic principle of this embodiment is: the conveying mechanism is used for conveying the building samples, the strength and the compressive capacity of the building samples are detected through the strength detection mechanism 400 and the pressure-bearing detection mechanism 700 in the conveying process, and meanwhile, the linkage mechanism 500 is arranged to reduce part of manpower and power mechanisms in the detecting process, so that the detection efficiency is improved.
Referring to fig. 2, the bracket 300 includes upright posts 310 provided at both sides of the main frame body 100, a cross plate 320 is fixedly installed at upper ends of the two upright posts 310, and the strength detecting mechanism 400 is installed on the cross plate 320. In the detection, the specimen passes between the two columns 310, the strength of the specimen can be detected by the strength detecting mechanism 400, and the cross plate 320 serves as a mounting carrier in the present invention.
The strength detecting mechanism 400 comprises a thickness measuring assembly 410 arranged on one side of the transverse plate 320 facing the incoming material and a strength detecting instrument 420 arranged on the other side of the transverse plate 320, wherein the strength detecting instrument 420 is connected with a power unit 430. The power unit 430 may be a cylinder or an oil cylinder, etc., the thickness measuring unit 410 may detect the thickness of the sample, and the strength detecting instrument 420 may drive the nail therein into the sample, and measure the strength of the sample according to the depth of the nail into the sample.
In this embodiment, two columns 310 are provided with a cross beam 330, and a linkage 500 is provided between the cross beam 330 and the strength detecting instrument 420 and the power unit 430. Through setting up link gear 500, can drive intensity detection instrument 420 action when power unit 430 action, including promoting intensity detection instrument 420 to the surface of sample to and pull intensity detection instrument 420 and throw into the sample inside with penetrating the nail, reduced the process of manpower pulling intensity detection instrument 420, improved detection efficiency.
Referring to fig. 3 and 4, the linkage 500 includes an elastic trigger 510 provided on the cross beam 330, a hooking groove 520 provided on the output rod 440 of the power unit 430, a hooking rod 530 hinged on the strength detecting instrument 420, and a fine dried noodle portion 540 provided at the bottom of the cross beam 320 and at the upper end of the hooking rod 530, the end of the hooking rod 530 being disposed in the hooking groove 520.
Through setting up the elastic triggering piece 510, in the in-process that power unit 430 downwardly pushed intensity detection instrument 420 moved, the elastic triggering piece 510 is retracted, after intensity detection instrument 420 is in place, elastic triggering piece 510 pops out, remove power unit 430 and intensity detection instrument 420's connection, at this moment, because hanging rod 530 is in hanging groove 520, power unit 430 upward movement can drive hanging rod 530 action, the inside elastic component of pulling intensity detection instrument 420 makes its compression, after hanging rod 530 moves to certain height, two unhook facial 540 contact, make hanging rod 530 break away from with hanging groove 520, thereby with the nail of shooing into the inside detection of sample intensity of sample under the resilience effect of elastic component.
The output rod 440 is hollow, a connecting rod 550 is disposed at the upper end of the intensity detecting instrument 420, the connecting rod 550 is embedded into the output rod 440, the linkage mechanism 500 further includes a passive contact 560 disposed between the connecting rod 550 and the output rod 440, and the passive contact 560 is in time-sharing contact connection with the elastic trigger 510.
After the lower end of the intensity detection instrument 420 contacts the sample, the elastic trigger piece 510 returns to the original position, and the elastic trigger piece is propped against the passive contact piece 560 to release the connection between the connecting rod 550 and the output rod 440, and the intensity detection instrument does not act in the process of upward movement of the output rod 440 because the elastic contact piece is propped against the upper side of the intensity detection instrument, and at this time, the output rod 440 can drive the hanging rod 530 to upward move to compress the elastic piece inside the intensity detection instrument 420 so as to enable the elastic piece to store energy and prepare for shooting nails.
The elastic triggering member 510 includes a telescopic rod 511 penetrating through the cross beam 330, a baffle 512 is disposed on a side of the telescopic rod 511 away from the power unit 430, a spring 513 is disposed on the telescopic rod 511 between the baffle 512 and the cross beam 330, a contact block 514 is disposed on the other end of the telescopic rod 511, the contact block 514 includes a sliding inclined plane 5141 and a propping plane 5142, and the propping plane 5142 contacts the passive contact member 560 in a time sharing manner.
The sliding inclined surface 5141 is used for driving the telescopic rod 511 to retract in the process of downward movement of the intensity measuring instrument, and the propping plane 5142 is used for propping the passive contact piece 560 back so that the connecting rod 550 is in contact connection with the telescopic rod 511, and meanwhile, the lower side surface of the contact block 514 can press the intensity measuring instrument to fix the intensity measuring instrument.
The passive contact 560 includes a bullet on the connecting rod 550, and the output rod 440 is provided with a perforation for the bullet to penetrate and retract.
In the process of the telescopic rod 511 driving the contact block 514 to return, the propping plane 5142 can prop the elastic beans back into the hole, and the connection between the connecting rod 550 and the output rod 440 is released.
Wherein, the thickness measuring assembly 410 comprises a laser thickness gauge arranged on the transverse plate 320, the pressure bearing detection mechanism 700 comprises a plurality of pressure applying assemblies arranged on the mounting frame 600, the pressure applying assemblies comprise power pieces 710 arranged on the mounting frame 600, and the lower ends of the power pieces 710 are connected with pressure applying blocks 720. The pressing block 720 may be pressed onto the test specimen by the power member 710, and the pressure applied by the power member 710 may detect the compressive capacity of the test specimen.
In a second aspect, the present invention provides a method for detecting a building main structure by using the building main structure detection device, including the following steps:
S1, placing a detection sample on a conveying mechanism 200, and conveying the detection sample to an intensity detection mechanism 400 by the conveying mechanism 200 to detect the thickness and intensity of the sample;
And S2, after the intensity detection is finished, the conveying mechanism 200 drives the sample to be conveyed to the pressure-bearing detection mechanism 700 to detect the pressure resistance of the sample.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. The building main body structure detection device is characterized by comprising a main frame body (100), wherein a conveying mechanism (200) is arranged on the main frame body (100), a support (300) is arranged on the main frame body (100), a strength detection mechanism (400) and a linkage mechanism (500) which is in linkage with the strength detection mechanism (400) are arranged on the support (300), a mounting frame (600) is further arranged on the main frame body (100), and a pressure-bearing detection mechanism (700) is arranged on the mounting frame (600);
The support (300) comprises upright posts (310) arranged on two sides of the main support body (100), transverse plates (320) are fixedly arranged at the upper ends of the two upright posts (310), and the strength detection mechanism (400) is arranged on the transverse plates (320);
The strength detection mechanism (400) comprises a thickness measuring assembly (410) arranged on one side of the transverse plate (320) facing to incoming materials and a strength detection instrument (420) arranged on the other side of the transverse plate (320), wherein the strength detection instrument (420) is connected with a power unit (430);
a cross beam (330) is arranged on the two upright posts (310), and a linkage mechanism (500) is arranged between the cross beam (330) and the strength detection instrument (420) and between the cross beam and the power unit (430);
The linkage mechanism (500) comprises an elastic trigger piece (510) arranged on the cross beam (330), a hanging groove (520) arranged on an output rod (440) of the power unit (430), a hanging rod (530) hinged on the strength detection instrument (420), the tail end of the hanging rod (530) is arranged in the hanging groove (520), and the linkage mechanism further comprises a noodle removing part (540) arranged at the bottom of the cross plate (320) and the upper end of the hanging rod (530);
In the process that the power unit (430) pushes the strength detection instrument (420) downwards, the elastic triggering piece (510) is retracted, when the strength detection instrument (4220) is in place, the elastic triggering piece (510) is ejected, and contacts with the connection of the power unit (430) and the strength detection instrument (420), at the moment, the power unit (430) acts upwards to drive the hanging rod (530) to act, the elastic piece in the strength detection instrument (420) is pulled to compress the hanging rod, and after the hanging rod (530) moves to a certain height, the two vermicelli releasing parts (540) are contacted, so that the hanging rod (530) is separated from the hanging groove (520), and a nail is shot into the sample to detect the strength of the sample under the rebound action of the elastic piece;
The output rod (440) is hollow, a connecting rod (550) is arranged at the upper end of the intensity detection instrument (420), the connecting rod (550) is embedded into the output rod (440), the linkage mechanism (500) further comprises a passive contact piece (560) arranged between the connecting rod (550) and the output rod (440), and the passive contact piece (560) is in time-sharing contact connection with the elastic trigger piece (510);
The elastic triggering piece (510) comprises a telescopic rod (511) penetrating through the cross beam (330), a baffle (512) is arranged on one side, far away from the power unit (430), of the telescopic rod (511), a spring (513) is arranged on the telescopic rod (511) between the baffle (512) and the cross beam (330), a contact block (514) is arranged at the other end of the telescopic rod (511), the contact block (514) comprises a sliding inclined surface (5141) and a propping plane (5142), and the propping plane (5142) is in time-sharing contact with the passive contact piece (560);
the passive contact (560) comprises a bullet bean arranged on the connecting rod (550), and the output rod (440) is provided with a perforation for the bullet bean to penetrate and retract.
2. The building main structure detection device according to claim 1, wherein the thickness measuring assembly (410) comprises a laser thickness gauge arranged on a transverse plate (320), the pressure bearing detection mechanism (700) comprises a plurality of pressure applying assemblies arranged on a mounting frame (600), the pressure applying assemblies comprise power pieces (710) arranged on the mounting frame (600), and the lower ends of the power pieces (710) are connected with the pressure applying blocks (720).
3. A method of inspecting a building body structure using the building body structure inspection apparatus according to claim 1, comprising the steps of:
s1, placing a detection sample on a conveying mechanism (200), conveying the detection sample to an intensity detection mechanism (400) by the conveying mechanism (200) and detecting the thickness and intensity of the sample;
And S2, after the intensity detection is finished, the conveying mechanism (200) drives the sample to be conveyed to the pressure-bearing detection mechanism (700) to detect the pressure resistance of the sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410108008.3A CN117629757B (en) | 2024-01-26 | 2024-01-26 | Building main body structure detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410108008.3A CN117629757B (en) | 2024-01-26 | 2024-01-26 | Building main body structure detection device and detection method |
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| Publication Number | Publication Date |
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| CN117629757A CN117629757A (en) | 2024-03-01 |
| CN117629757B true CN117629757B (en) | 2024-04-23 |
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| CN202410108008.3A Active CN117629757B (en) | 2024-01-26 | 2024-01-26 | Building main body structure detection device and detection method |
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| WO2003093800A1 (en) * | 2002-05-02 | 2003-11-13 | CENTRE DE RECHERCHE INDUSTRIELLE DU QUéBEC | Apparatus and method for testing stiffness of articles |
| CN205719738U (en) * | 2016-05-07 | 2016-11-23 | 王庆表 | A kind of novel penetration type concrete strength inspection device |
| CN208780573U (en) * | 2018-09-11 | 2019-04-23 | 菅影东 | A kind of portable bridge concrete strength inspection device |
| CN212134334U (en) * | 2020-06-04 | 2020-12-11 | 奥来国信（北京）检测技术有限责任公司 | Injection type mortar strength detection device |
| CN114965699A (en) * | 2022-06-09 | 2022-08-30 | 江苏科正检测咨询有限公司 | Nondestructive detector for impact elastic wave of concrete |
| CN116625862A (en) * | 2023-07-20 | 2023-08-22 | 长垣市建筑工程质量安全服务站 | Concrete member hardness detection device |
| CN116990169A (en) * | 2023-08-11 | 2023-11-03 | 江西奋发科技有限公司 | Adjustable sealing element rebound recovery testing device |
| CN220207336U (en) * | 2023-06-12 | 2023-12-19 | 广东拓致检测鉴定有限公司 | Labor-saving and safe penetrating type mortar strength detector |
-
2024
- 2024-01-26 CN CN202410108008.3A patent/CN117629757B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003093800A1 (en) * | 2002-05-02 | 2003-11-13 | CENTRE DE RECHERCHE INDUSTRIELLE DU QUéBEC | Apparatus and method for testing stiffness of articles |
| CN205719738U (en) * | 2016-05-07 | 2016-11-23 | 王庆表 | A kind of novel penetration type concrete strength inspection device |
| CN208780573U (en) * | 2018-09-11 | 2019-04-23 | 菅影东 | A kind of portable bridge concrete strength inspection device |
| CN212134334U (en) * | 2020-06-04 | 2020-12-11 | 奥来国信（北京）检测技术有限责任公司 | Injection type mortar strength detection device |
| CN114965699A (en) * | 2022-06-09 | 2022-08-30 | 江苏科正检测咨询有限公司 | Nondestructive detector for impact elastic wave of concrete |
| CN220207336U (en) * | 2023-06-12 | 2023-12-19 | 广东拓致检测鉴定有限公司 | Labor-saving and safe penetrating type mortar strength detector |
| CN116625862A (en) * | 2023-07-20 | 2023-08-22 | 长垣市建筑工程质量安全服务站 | Concrete member hardness detection device |
| CN116990169A (en) * | 2023-08-11 | 2023-11-03 | 江西奋发科技有限公司 | Adjustable sealing element rebound recovery testing device |
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| CN117629757A (en) | 2024-03-01 |
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