CN205067229U - Concrete compressive strength automatic check out system - Google Patents
Concrete compressive strength automatic check out system Download PDFInfo
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- CN205067229U CN205067229U CN201520771457.2U CN201520771457U CN205067229U CN 205067229 U CN205067229 U CN 205067229U CN 201520771457 U CN201520771457 U CN 201520771457U CN 205067229 U CN205067229 U CN 205067229U
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Abstract
The utility model discloses a concrete compressive strength automatic check out system, it is categorised with storage unit, sample test unit with be used for controlling the central control system of each unit function to collect unit, sample including the sample of plugging into in proper order, the sample categorised with storage unit include interim place the platform, sample keep in room, fog room, be used for an automatic identification equipment and two propelling movement separating mechanism of scanning tube reason code, interim place the platform, fog room and sample are kept in one of room and are lain in a conveying mechanism terminal, propelling movement separating mechanism corresponds two other settings respectively, the sample test unit is including being used for placing the test platform and the compression test device of concrete test block, and test platform plugs into the applied voltage test is carried out by central control system control compression test device to the concrete test block in fog room and the sample room of keeping in to gather the tentation data, export after calculation obtains the test result. The utility model discloses can realize that unmanned on duty detects, reduce intensity of labour, improve work efficiency.
Description
Technical field
The utility model relates to a kind of concrete crushing strength automatic checkout system, can realize concrete crushing strength unmanned and automatically detect.
Background technology
Concrete crushing strength detects as one of test item the most conventional in engineering project, in reality detects, have great demand.But, current most domestic concrete crushing strength detects high to artificial degree of dependence, the strength test of the sample message typing in concrete crushing strength testing process, sample storage and transhipment, sample, detect clear up afterwards, each link such as data acquisition and overall treatment all needs manual operation.
Concrete crushing strength detects and adopts manual mode of operation to there is following defect:
(1) labour intensity is large, and wastes time and energy, and detection efficiency is lower.
(2), due to more to artificial dependence in whole testing process, cause testing process to lack controllability, produce a series of management, monitoring problem thus, and the accuracy of testing result also can be affected.
(3) be affected by human factors large in actual testing process, negative influence is caused for the prestige of construction quality, testing agency, the interests of consumer.
(4) be very limited the detection time of manual mode of operation, usually only can carry out by day, the dirigibility of detection time is poor.
How farthest reduce human factor to the impact of testing process and result, the reliability farthest ensureing submitted sample data, and improve detection efficiency, the most effective solution route is that the unmanned realizing concrete crushing strength detects automatically at present, but the unmanned how realizing concrete crushing strength detects automatically, this becomes current industry technical barrier urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide that a kind of detection efficiency is high, the reliability of guaranteeing to detect data, testing result accurately, human factor impact little, controlled, the detection time of concrete crushing strength automatic checkout system flexibly.
The purpose of this utility model is realized by following technical measures: a kind of detection system of concrete crushing strength automatic testing method, it is characterized in that: it comprises the sample collection unit of plugging into successively, sample classification and storage element, sample test unit and the central control system for controlling each cell operation, described sample collection unit comprises for typing concrete test block information and is synchronized to the computing machine of central control system, be arranged on management on concrete test block and corresponding with its information to encode and the first conveying mechanism, described management coding central control system generates, described sample classification and storage element comprise interim placement platform, sample temporary room, fog room, for scanning the first automatic identification equipment and two propelling movement separating mechanisms of management coding, described first automatic identification equipment is located at the front portion of the first conveying mechanism and is connected with central control system, described interim placement platform, one of them of fog room and sample temporary room is positioned at the terminal of the first conveying mechanism, push separating mechanism to be arranged on the first conveying mechanism and the rear being positioned at the first automatic identification equipment, described propelling movement separating mechanism respectively corresponding two other is arranged, will not manage coding or the incomplete concrete test block of information delivers to interim placement platform respectively, the concrete test block not reaching the length of time is delivered to concrete test block that fog room carries out maintenance and reach the length of time and is delivered to sample temporary room and store, described sample test unit comprises test platform for placing concrete test block and pressure experimental device, described test platform is plugged into described fog room and sample temporary room, by central control system controlled pressure test unit, applied voltage test is carried out to the concrete test block be delivered on test platform from fog room and sample temporary room, and acquisition test data, export after calculating test findings.
Concrete test block information described in the utility model comprises the length of time, the time of collecting, size, strength grade, numbering etc., is usually directly provided by censorship unit.
The utility model can realize increasingly automated, is judged and start automatic transportation, automatically detect by computing machine, realizes unmanned and detects, reduce labour intensity, effectively raise work efficiency.All controlled by central control system at links such as information acquisition, transport, storage, tests, without the need to artificial participation, human factor impact is little, whole testing process is controlled, avoid a series of management, monitoring problem produces, and the accuracy detecting data can be ensured, farthest ensure the reliability of submitted sample data; Because human factor impact is little, also solve human factor impact large, the prestige of construction quality, testing agency, the interests of consumer are caused to the problem of negative influence.In addition, automatically detected according to the sample message gathered by central control system, not free restriction, as long as set correlation parameter, can detect at any time, therefore, detection time is flexible and changeable.
The utility model is provided with the first pressure transducer be connected with central control system in the front end of described first conveying mechanism, described first pressure transducer is experienced the pressure of concrete test block and pressure signal is sent to central control system, controls startup first conveying mechanism by central control system.
Propelling movement separating mechanism described in the utility model is primarily of driving mechanism and square push pedal composition, and described central control system controls driving mechanism and drives square push pedal along the crosswise pushing concrete test block of the first conveying mechanism.
Detection system described in the utility model also comprises cleaning unit, described cleaning unit primarily of being positioned at the frame of test platform side, scraper plate, be located in frame and form for the driving mechanism driving scraping plate lifting and translation, the air nozzle that is connected with source of the gas, control driving mechanism by central control system drive scraper plate to decline and be pushed on test platform mobile to clean the concrete test block after fragmentation, the gas of air nozzle ejection simultaneously cleaning small particles material.
The utility model is provided with second conveyor structure at fog room with between sample temporary room and test platform, described second conveyor structure is provided with the second automatic identification equipment for checking concrete test block information and delivery device, described second automatic identification equipment is connected with central control system, and scanning can be sent less than management coding or the incomplete concrete test block of information along second conveyor structure and carry out artificial treatment by described delivery device.
First automatic identification equipment described in the utility model and the second automatic identification equipment all adopt noctovisor scan equipment.
The utility model is provided with transfer device in the front of described test platform, described transfer device comprises frame, rack-mounted driving mechanism, guide rail, transfer platform and grabbing device, described transfer platform is positioned at the terminal of second conveyor structure, described transfer platform is provided with the second pressure transducer be connected with central control system, described grabbing device is slidably mounted on guide rail, described concrete test block is delivered on transfer platform, pressure signal is sent to central control system by the pressure that concrete test block experienced by described second pressure transducer, controlling driving mechanism by central control system drives grabbing device to capture concrete test block from transfer platform, move to test platform along guide rail again and concrete test block to be placed on test platform thus to realize test platform and sample temporary room, plugging into of fog room.
Compared with prior art, the utility model has following significant effect:
(1) the utility model can realize increasingly automated, is judged and start automatic transportation, automatically detect by computing machine, realizes unmanned and detects, reduce labour intensity, effectively raise work efficiency.
(2) the utility model is all controlled by central control system at links such as information acquisition, transport, storage, tests, without the need to artificial participation, human factor impact is little, whole testing process is controlled, avoid a series of management, monitoring problem produces, and the accuracy detecting data can be ensured, farthest ensure the reliability of submitted sample data.
(3) because human factor impact is little, also solve human factor impact large, the prestige of construction quality, testing agency, the interests of consumer are caused to the problem of negative influence.
(4) the utility model is detected according to the sample message gathered automatically by central control system, and not free restriction, as long as set correlation parameter, can detect at any time, therefore, detection time is flexible and changeable.
(5) the utility model is particularly useful for concrete crushing strength and automatically detects occasion, is also applicable to other similar detection occasion.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is composition structural representation of the present utility model;
Fig. 2 is workflow block diagram of the present utility model.
Embodiment
Embodiment 1
As shown in Figure 1, 2, be a kind of concrete crushing strength automatic testing method of the utility model, comprise the following steps:
One, the information of the concrete test block provided according to sample presentation unit, comprise the length of time of concrete test block, collect the time, size, strength grade, numbering etc., concrete test block in the present embodiment is the concrete test block (length of time is 24 days) of 150 × 150 × 150mm, by the Data Enter computing machine of concrete test block, and by the synchronizing information of concrete test block to central control system, central control system is that each concrete test block generates management coding, in control system, the management coding of each concrete test block corresponds to the information of this concrete test block, concrete test block arranges this management coding, whole workflow is controlled by central control system,
Two, the concrete test block arranging management coding is placed on the first pressure transducer, pressure signal is fed back to central control system by the first pressure transducer, start travelling belt (the first conveying mechanism), concrete test block transports by the first automatic identification equipment through travelling belt, first automatic identification equipment adopts noctovisor scan equipment, noctovisor scan device scan management coding, concrete test block is classified:
If 1 does not scan management coding, carrying out automatic alarm prompting, this concrete test block is delivered on interim placement platform, to the concrete test block not arranging management coding, proceeding to step 2 by manually arranging management coding;
If 2 scan management coding, then:
(1), if the information of concrete test block is incomplete, carries out automatic alarm prompting, this concrete test block is delivered on interim placement platform, for the concrete test block that information is incomplete, after information is checked complete typing, proceed to step 2;
(2) if the information completely of concrete test block, then:
If concrete test block does not reach the length of time, delivered to fog room and carry out maintenance until concrete test block reaches the length of time, the concrete test block not reaching the length of time is delivered in fog room successively according to censored time, and according to the arrangement of time order and function order, proceeds to step 3;
If concrete test block reaches the length of time, delivered to sample temporary room and stored, be delivered to successively in the storage shelf in measuring samples temporary room according to censored time, and according to the arrangement of time order and function order, proceeded to step 3;
Three, concrete test block is delivered to test platform before scan on this concrete test block management coding:
If the information completely of concrete test block, then this concrete test block is delivered on test platform;
If the information of concrete test block is complete or scanning is encoded less than management, then concrete test block is sent and carry out artificial treatment.
Undertaken judging by central control system root censored time and curing age and feed back to the control device of fog room, being started by control device and the concrete test block reaching the length of time is delivered on test platform.
Four, applied voltage test is carried out to concrete test block, and acquisition test data, calculate test findings.
Automatic clearance removes the concrete test block on test platform after fragmentation, in order to carrying out applied voltage test next time.
A kind of detection system using above-mentioned concrete crushing strength automatic testing method, it comprise plug into successively sample collection unit, sample classification and storage element, sample test unit and the central control system 13 for controlling each cell operation, sample collection unit comprises for entry information and is synchronized to the computing machine of central control system, is arranged on concrete test block and the management corresponding with its information is encoded and the first conveying mechanism 16, and management coding central control system generates, sample classification and storage element comprise interim placement platform 4, sample temporary room 6, fog room 7, for scanning the first automatic identification equipment 2 and two propelling movement separating mechanisms 3,5 that manage and encode, the first pressure transducer 1 be connected with central control system 13 is provided with in the front end of the first conveying mechanism 16, first pressure transducer 1 is experienced the pressure of concrete test block and pressure signal is sent to central control system 13, controls startup first conveying mechanism 16 by central control system 13, first automatic identification equipment 2 adopts noctovisor scan equipment, first automatic identification equipment 2 is located at the front portion of the first conveying mechanism 16 and is connected with central control system 13, push separating mechanism 3 and 5 to be arranged on the first conveying mechanism 16 and the rear being positioned at the first automatic identification equipment 2, first automatic identification equipment 2 by the information feed back of concrete test block to central control system 13, push the corresponding interim placement platform 4 of separating mechanism 3 to arrange, to not manage coding or the incomplete concrete test block of information pushes on interim placement platform 4 by pushing separating mechanism 3, push separating mechanism 5 counter sample temporary room 7 to arrange, the concrete test block reaching the length of time pushes to sample temporary room 7 store by pushing separating mechanism 5, push separating mechanism 3 and 5 primarily of driving mechanism and square push pedal composition, central control system controls driving mechanism and drives square push pedal along the crosswise pushing concrete test block of the first conveying mechanism 16, fog room 6 is positioned at the terminal of the first conveying mechanism 16, maintenance is carried out for receiving the concrete test block not reaching the length of time, sample test unit comprises test platform 11 for placing concrete test block and pressure experimental device, test platform 11 is plugged into fog room 6 and sample temporary room 7, by central control system 13 controlled pressure test unit, applied voltage test is carried out to the concrete test block being delivered to test platform 11 from fog room 6 and sample temporary room 7, and acquisition test data, calculate test findings.
Second conveyor structure 17 is provided with at fog room 6 with between sample temporary room 7 and test platform 11, the front portion of second conveyor structure 17 is provided with the second automatic identification equipment 8 and delivery device 15, scanning can be sent to disposal platform 14 manually to dispose less than the concrete test block that management is encoded or information is incomplete along the horizontal of second conveyor structure 17 by delivery device 15, second automatic identification equipment 8 is connected with central control system 13, second automatic identification equipment 8 adopts noctovisor scan equipment, this noctovisor scan equipment is for scanning management coding with the information checking this concrete test block, transfer device is provided with in the front of test platform 11, transfer device comprises frame, rack-mounted driving mechanism, guide rail, transfer platform 9 and grabbing device, transfer platform 9 is positioned at the terminal of second conveyor structure 17, transfer platform 9 is provided with the second pressure transducer be connected with central control system 13, grabbing device adopts mechanical grabbing arm 10, machinery grabbing arm 10 is slidably mounted on guide rail, concrete test block is delivered on transfer platform 9, second pressure transducer is experienced the pressure of concrete test block and pressure signal is sent to central control system, control driving mechanism driving device grabbing arm 10 by central control system 13 and capture concrete test block from transfer platform 9, move to test platform 11 along guide rail again and concrete test block to be placed on test platform 11 thus to realize test platform 11 and sample temporary room 7, plugging into of fog room 6.
The information that central control system 13 identifies according to the second automatic identification equipment 8, after the content such as pressure limit, pressing speed, calculating parameter of automatic setting applied voltage test, automatically start applied voltage test, after applied voltage test, image data also calculates output test result automatically.
Also comprise cleaning unit, cleaning unit primarily of being positioned at the frame of test platform 11 side, scraper plate, be located in frame and form for the driving mechanism driving scraping plate lifting and translation, the air nozzle that is connected with source of the gas, control driving mechanism by central control system 13 drive scraper plate to decline and push on test platform 11 mobile to clean the concrete test block after fragmentation, the gas of air nozzle ejection simultaneously cleaning small particles material.Be connected with the skewed slot for receiving fragment at test platform 11, after having detected, the concrete test block after fragmentation is transported to sample fragment collecting box 12 by belt conveyor and focuses on by this skewed slot.
The course of work of the present utility model is as follows: by the Data Enter computing machine of concrete test block, and be synchronized to central control system, central control system is that each concrete test block generates management coding, in control system, the management coding of each concrete test block corresponds to the information of this concrete test block, concrete test block arranges this management coding, be placed on the first pressure transducer 1 again, pressure signal is fed back to central control system 13 by the first pressure transducer 1, start the travelling belt of the first conveying mechanism 16, concrete test block is carried through the first automatic identification equipment 2 through travelling belt, i.e. noctovisor scan equipment, this noctovisor scan equipment by the information feed back of concrete test block to central control system 13, central control system 13 is according to being the length of time within 24 days, judge that concrete test block is as not reaching sample in the length of time, open and push separating mechanism 3, 5, concrete test block is directly transported to by travelling belt in the storage shelf of fog room 6, after concrete test block to curing age, central control system starts the control device of fog room to start travelling belt, after concrete test block transports out fog room by travelling belt, through noctovisor scan equipment approval information again, transfer platform 9 is transported to again by travelling belt, pressure changing information is fed back to central control system 13 by the pressure transducer on transfer platform 9, central control system 13 starts mechanical grabbing arm 10, machinery grabbing arm 10 captures sample and is placed on test platform 11, pressure experimental device carries out compressive strength detection to sample, after detection completes, sample fragment is collected and is transported to sample fragment collecting box 12 and focuses on.
Embodiment 2
The difference of the present embodiment and embodiment is: concrete test block is the concrete test block (length of time is 28 days) of 150 × 150 × 150mm, first by the essential information typing of this concrete test block, be placed on the first pressure transducer 1 again, pressure signal is fed back to central control system 13 by the first pressure transducer 1, central control system 13 starts travelling belt, concrete test block is through transporting by noctovisor scan equipment, by the information feed back of test block to central control system 13, central control system 13 is according to being its length of time within 28 days, judge that sample is as reaching sample in the length of time, open and push separating mechanism 3, close and push separating mechanism 5, test block is directly transported in the storage shelf of sample temporary room 7 by belt and propelling movement separating mechanism, central control system 13 starts the transmission system of temporary room, testing sample goes out sample temporary room 7 by belt-conveying, through noctovisor scan equipment approval information again, again by belt-conveying to transfer platform 9, transfer platform 9 is provided with pressure transducer, pressure changing information is fed back to central control system 13 by pressure transducer, central control system 13 starts mechanical grabbing arm 10, sample captures and is placed on test platform 11 and carries out compressive strength detection by machinery grabbing arm 10, after detection completes, sample fragment is collected and is transported to sample fragment collecting box 12 and focuses on.
Embodiment 3
The difference of the present embodiment and embodiment is: concrete test block is the concrete test block (length of time is 30 days) of 150 × 150 × 150mm, concrete test block arranges management coding, and by essential information typing (Data Enter is incomplete), be placed on the first pressure transducer 1 again, pressure signal is fed back to central control system 13 by the first pressure transducer 1, the travelling belt of central control system 13 start detection system, concrete test block passes through noctovisor scan equipment through belt-conveying, noctovisor scan equipment Inspection is incomplete to sample message, direct alarm, central control system 13 starts propelling movement separating mechanism 3 and sample is transported to interim placement platform by belt conveyor, again detection system is put into after information completion.
Embodiment of the present utility model is not limited thereto; according to foregoing of the present utility model; according to ordinary technical knowledge and the customary means of this area; do not departing under the utility model above-mentioned basic fundamental thought prerequisite; utility model can also make the amendment of other various ways, replacement or change, all drops within the utility model rights protection scope.
Claims (8)
1. a concrete crushing strength automatic checkout system, it is characterized in that: it comprise plug into successively sample collection unit, sample classification and storage element, sample test unit and the central control system for controlling each cell operation, described sample collection unit comprises for typing concrete test block information and is synchronized to the computing machine of central control system, is arranged on concrete test block and the management corresponding with its information is encoded and the first conveying mechanism, and described management coding central control system generates, described sample classification and storage element comprise interim placement platform, sample temporary room, fog room, for scanning the first automatic identification equipment and two propelling movement separating mechanisms of management coding, described first automatic identification equipment is located at the front portion of the first conveying mechanism and is connected with central control system, described propelling movement separating mechanism to be arranged on the first conveying mechanism and to be positioned at the rear of the first automatic identification equipment, described interim placement platform, one of them of fog room and sample temporary room is positioned at the terminal of the first conveying mechanism, push separating mechanism two other setting corresponding respectively, will not manage coding or the incomplete concrete test block of information delivers to interim placement platform respectively, the concrete test block not reaching the length of time is delivered to concrete test block that fog room carries out maintenance and reach the length of time and is delivered to sample temporary room and store, described sample test unit comprises test platform for placing concrete test block and pressure experimental device, described test platform is plugged into described fog room and sample temporary room, the concrete test block be delivered to test platform from fog room and sample temporary room carries out applied voltage test by central control system controlled pressure test unit to concrete test block, and acquisition test data, export after calculating test findings.
2. concrete crushing strength automatic checkout system according to claim 1, it is characterized in that: be provided with the first pressure transducer be connected with central control system in the front end of described first conveying mechanism, described first pressure transducer is experienced the pressure of concrete test block and pressure signal is sent to central control system, controls startup first conveying mechanism by central control system.
3. concrete crushing strength automatic checkout system according to claim 2, it is characterized in that: described propelling movement separating mechanism is primarily of driving mechanism and square push pedal composition, and described central control system controls driving mechanism and drives square push pedal along the crosswise pushing concrete test block of the first conveying mechanism.
4. concrete crushing strength automatic checkout system according to claim 3, it is characterized in that: described detection system also comprises cleaning unit, described cleaning unit primarily of being positioned at the frame of test platform side, scraper plate, be located in frame and form for the driving mechanism driving scraping plate lifting and translation, the air nozzle that is connected with source of the gas, control driving mechanism by central control system drive scraper plate to decline and push on test platform mobile to clean the concrete test block after fragmentation, the gas of air nozzle ejection simultaneously cleaning small particles material.
5. concrete crushing strength automatic checkout system according to claim 4, it is characterized in that: be provided with second conveyor structure at fog room with between sample temporary room and test platform, described second conveyor structure is provided with the second automatic identification equipment for checking concrete test block information and delivery device, described second automatic identification equipment is connected with central control system, and scanning can be sent less than management coding or the incomplete concrete test block of information along the transverse direction of second conveyor structure and carry out artificial treatment by described delivery device.
6. concrete crushing strength automatic checkout system according to claim 5, is characterized in that: described first automatic identification equipment and the second automatic identification equipment all adopt noctovisor scan equipment.
7. concrete crushing strength automatic checkout system according to claim 6, it is characterized in that: be provided with transfer device in the front of described test platform, described transfer device comprises frame, rack-mounted driving mechanism, guide rail, transfer platform and grabbing device, described transfer platform is positioned at the terminal of second conveyor structure, described transfer platform is provided with the second pressure transducer be connected with central control system, described grabbing device is slidably mounted on guide rail, described concrete test block is delivered on transfer platform, described second pressure transducer is experienced the pressure of concrete test block and pressure signal is sent to central control system, controlling driving mechanism by central control system drives grabbing device to capture concrete test block from transfer platform, move to test platform along guide rail again and concrete test block to be placed on test platform thus to realize test platform and sample temporary room, plugging into of fog room.
8. the concrete crushing strength automatic checkout system according to any one of claim 1 ~ 7, is characterized in that: described concrete test block information comprises the length of time, the time of collecting, size, strength grade and numbering.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520771457.2U CN205067229U (en) | 2015-09-29 | 2015-09-29 | Concrete compressive strength automatic check out system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520771457.2U CN205067229U (en) | 2015-09-29 | 2015-09-29 | Concrete compressive strength automatic check out system |
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| CN205067229U true CN205067229U (en) | 2016-03-02 |
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| CN201520771457.2U Withdrawn - After Issue CN205067229U (en) | 2015-09-29 | 2015-09-29 | Concrete compressive strength automatic check out system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223077A (en) * | 2015-09-29 | 2016-01-06 | 广东省建筑材料研究院 | A kind of concrete crushing strength automatic testing method and detection system thereof |
| CN105823584A (en) * | 2016-03-13 | 2016-08-03 | 北京工业大学 | Apparatus for measuring concrete shearing strength by using single-shearing-plane Z-shaped test piece method |
| CN113418780A (en) * | 2021-06-11 | 2021-09-21 | 重庆建工建材物流有限公司 | Concrete strength test system |
| CN113899910A (en) * | 2021-09-14 | 2022-01-07 | 中国航天建设集团有限公司 | Intelligent test system for engineering structure test piece |
-
2015
- 2015-09-29 CN CN201520771457.2U patent/CN205067229U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223077A (en) * | 2015-09-29 | 2016-01-06 | 广东省建筑材料研究院 | A kind of concrete crushing strength automatic testing method and detection system thereof |
| CN105223077B (en) * | 2015-09-29 | 2018-02-13 | 广东省建筑材料研究院 | A kind of concrete crushing strength automatic testing method and its detecting system |
| CN105823584A (en) * | 2016-03-13 | 2016-08-03 | 北京工业大学 | Apparatus for measuring concrete shearing strength by using single-shearing-plane Z-shaped test piece method |
| CN105823584B (en) * | 2016-03-13 | 2018-03-30 | 北京工业大学 | A kind of device suitable for the Z-shaped Specimen Method measure anti-shear concrete intensity in simple shear face |
| CN113418780A (en) * | 2021-06-11 | 2021-09-21 | 重庆建工建材物流有限公司 | Concrete strength test system |
| CN113418780B (en) * | 2021-06-11 | 2023-06-02 | 重庆建工建材物流有限公司 | Concrete strength test system |
| CN113899910A (en) * | 2021-09-14 | 2022-01-07 | 中国航天建设集团有限公司 | Intelligent test system for engineering structure test piece |
| CN113899910B (en) * | 2021-09-14 | 2024-05-17 | 中国航天建设集团有限公司 | Intelligent test system for engineering structure test piece |
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