CN204423059U - Many samples difference freeze thawing state freezing-thawing test device - Google Patents
Many samples difference freeze thawing state freezing-thawing test device Download PDFInfo
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- CN204423059U CN204423059U CN201520120067.9U CN201520120067U CN204423059U CN 204423059 U CN204423059 U CN 204423059U CN 201520120067 U CN201520120067 U CN 201520120067U CN 204423059 U CN204423059 U CN 204423059U
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Abstract
The utility model discloses a kind of many samples difference freeze thawing state freezing-thawing test device, comprise the Frozen-thawed cycled case that multiple structure is identical, each Frozen-thawed cycled case includes casing, door, glass window, touch LCD screen, power input interface, power output interface, the first heat-resisting dividing plate, transformer, refrigeration compressor, temperature sensor, humidity sensor, freeze thawing state controller, U-shaped tubular heat exchanger, resistive heater and multilayer sample and clamps frock, and sample clamps frock and is made up of clamping plate and cover plate; Freeze thawing state controller comprises micro controller module, ac-dc converter circuit module, data memory module, first serial communication circuit module, second serial communication circuit module, clock circuit module, the first relay, the first contactor, the second relay and the second contactor.The utility model uses easy to operate, can realize the difference freeze thawing condition test of multiple sample simultaneously, can effectively improve freezing-thawing test efficiency and precision, practical.
Description
Technical field
The utility model belongs to freezing-thawing test device technique field, is specifically related to a kind of many samples difference freeze thawing state freezing-thawing test device.
Background technology
Rock its Mechanical Characteristics change under Frozen-thawed cycled effect is the difficult point place of ROCK MECHANICS RESEARCH always, its main cause is: shop experiment condition does not reach actual requirement, cannot arrange in same equipment simultaneously not wait temperature control and time controling, also cannot be arranged by temperature and time and Frozen-thawed cycled is carried out to the sillar of same batch different tests temperature simultaneously, thus cause the repetition of test, consuming time long, easily cause testing crew tired; And consider that testing crew cannot 24 hours reasons such as on duty, when equipment is when temperature reaches requirement or when occurring that accident affects equipment work, the remote control equipment of intelligence the adjustment of the conditions such as temperature and time can not be carried out.Conventional test methods is generally: in general Frozen-thawed cycled case, first arrange the circulation of certain temperature and time, then test specimen is put into Frozen-thawed cycled case, after certain number of cycles, change test specimen, another temperature and time of planting is set again through row circulation, upgrade again, just can complete the Frozen-thawed cycled to different temperatures and so forth, disposablely can not complete freezing-thawing test to batch test specimen that various temperature requires, and unloaded phenomenon may be there is time less for test specimen, and may because of causing test specimen dehydration serious in high/low temperature transfer process thus the result of impact test and degree of accuracy in Frozen-thawed cycled process.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of many samples difference freeze thawing state freezing-thawing test device is provided, its structure is simple, rationally novel in design, use easy to operate, the difference freeze thawing condition test of multiple sample can be realized simultaneously, can effectively improve freezing-thawing test efficiency and precision, practical, application value is high.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of many samples difference freeze thawing state freezing-thawing test device, it is characterized in that: comprise the Frozen-thawed cycled case that multiple structure is identical, each Frozen-thawed cycled case includes casing and is rotatably connected on the door on casing, on described door, embedding is provided with glass window and touch LCD screen, described bottom half is evenly provided with multiple installation and fixes projection, described casing top is evenly provided with multiple installation fixed groove fixed projection respectively with multiple installation and match, the power output interface rear wall of described casing being provided with the power input interface for accessing 220V alternating current and being connected with power input interface, the first heat-resisting dividing plate for housing interior volume being divided into ante-chamber and back cavity is provided with in described casing, transformer is provided with in described back cavity, refrigeration compressor, temperature sensor, humidity sensor and freeze thawing state controller, described transformer is connected with power input interface, the output terminal of described refrigeration compressor is connected with the U-shaped tubular heat exchanger stretched into through the first heat-resisting dividing plate in ante-chamber, described ante-chamber inner bottom part is provided with resistive heater, in described ante-chamber, middle position is evenly provided with multilayer sample and clamps frock, described sample clamps frock by corrugated clamping plate be fastened on clamping plate top and the corrugated cover plate forming multiple sample cavity volume that matches with clamping plate forms, and in described casing, both sides sidewall is symmetrically arranged with multiplely to put for card the draw-in groove that multilayer sample clamps frock, described freeze thawing state controller comprises micro controller module and the ac-dc converter circuit module for 220V alternating current being converted to each electricity consumption module required voltage in freeze thawing state controller, and the data memory module to connect with described micro controller module, first serial communication circuit module and second serial communication circuit module, described touch LCD screen connects with micro controller module, described temperature sensor and humidity sensor all connect with the input end of micro controller module, the input end of described micro controller module is also connected to clock circuit module, the output terminal of described micro controller module is connected to the first relay and the first contactor for being switched on or switched off the current supply circuit that transformer is powered to resistive heater that connect successively, and the second relay and the second contactor for being switched on or switched off the current supply circuit that 220V alternating current is powered to refrigeration compressor that connect successively, described first contactor is connected in the current supply circuit that transformer powers to resistive heater, described second contactor is connected in the current supply circuit that 220V alternating current powers to refrigeration compressor, described first serial communication circuit module is connected with the first nine needles serial port be arranged on casing rear wall, described second serial communication circuit module is connected with the second nine needles serial port be arranged on casing rear wall, multiple Frozen-thawed cycled case is fixed projection by the installation cooperatively interacted and is installed fixed groove and is stacked together, the power input interface be positioned on the Frozen-thawed cycled case of bottom is connected with the 220V alternating current interface on external power receptacle, the power input interface be positioned on the Frozen-thawed cycled case on upper strata is connected with the power output interface on the lower floor's Frozen-thawed cycled case be adjacent, and the first nine needles serial port be positioned on the Frozen-thawed cycled case on upper strata is connected with the second nine needles serial port on the lower floor's Frozen-thawed cycled case be adjacent.
Above-mentioned many samples difference freeze thawing state freezing-thawing test device, it is characterized in that: described door is connected on casing by axis of rotation, the one side surrounding that described casing and door are fitted is fixedly connected with the first magnetic and inhales bar, and the one side surrounding that described door and casing are fitted is fixedly connected with to inhale the second magnetic that bar matches and inhale bar with described first magnetic.
Above-mentioned many samples difference freeze thawing state freezing-thawing test device, is characterized in that: the both sides sidewall of described casing is connected with carrying handle.
Above-mentioned many samples difference freeze thawing state freezing-thawing test device, is characterized in that: be provided with the second heat-resisting dividing plate clamping frock for separating resistive heater and multilayer sample in described ante-chamber.
Above-mentioned many samples difference freeze thawing state freezing-thawing test device, it is characterized in that: described freeze thawing state controller comprises the WiFi wireless communication module and ethernet communication module that connect with micro controller module, described ethernet communication module is connected with the RJ-45 Ethernet interface be arranged on casing rear wall.
Above-mentioned many samples difference freeze thawing state freezing-thawing test device, it is characterized in that: the rear wall of described casing is provided with interface installation region, described casing is rotatably connected to for opening or the interface cover plate of closed interface installation region, described power input interface, power output interface, the first nine needles serial port, the second nine needles serial port and RJ-45 Ethernet interface are all arranged in interface installation region.
Above-mentioned many samples difference freeze thawing state freezing-thawing test device, is characterized in that: described micro controller module is single-chip microcomputer.
Above-mentioned many samples difference freeze thawing state freezing-thawing test device, is characterized in that: described data memory module is SD card data-carrier store.
The utility model compared with prior art has the following advantages:
1, the utility model structure is simple, rationally novel in design, and realization is convenient and cost is low.
2, use of the present utility model is easy to operate.
3, the utility model can realize the difference freeze thawing condition test of multiple sample simultaneously, can effectively improve freezing-thawing test efficiency, and avoid in Frozen-thawed cycled process because cause test specimen dehydration serious in high/low temperature transfer process thus the result of impact test and degree of accuracy.
4, sample of the present utility model clamps frock by corrugated clamping plate be fastened on clamping plate top and the corrugated cover plate forming multiple sample cavity volume that matches with clamping plate forms, and cover plate can freely be dismantled, and facilitates and places test, and contributes to sample and to satisfy water.
5, of the present utility model practical, result of use is good, and application value is high.
In sum, the utility model structure is simple, and rationally novel in design, use easy to operate, can realize the difference freeze thawing condition test of multiple sample, can effectively improve freezing-thawing test efficiency and precision, practical, application value is high simultaneously.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the utility model Frozen-thawed cycled case.
Fig. 2 is the structural representation of the utility model Frozen-thawed cycled chamber door when opening.
Fig. 3 is rear view of the present utility model.
Fig. 4 is the structural representation after the utility model Frozen-thawed cycled case removing cabinet rear panel.
Fig. 5 is the vertical view after the utility model Frozen-thawed cycled case removing roof box.
Fig. 6 is the structural representation that the utility model sample clamps frock.
Fig. 7 is the circuit connecting relation schematic diagram of the utility model freeze thawing state controller and other each elements.
Fig. 8 is using state schematic diagram of the present utility model.
Description of reference numerals:
1-casing; 2-door; 3-glass window;
4-touch LCD screen; 5-fixing projection is installed; 6-fixed groove is installed;
7-power input interface; 8-the first heat-resisting dividing plate; 9-ante-chamber;
10-back cavity; 11-transformer; 12-refrigeration compressor;
13-power output interface; 14-temperature sensor; 15-humidity sensor;
16-freeze thawing state controller; 16-1-micro controller module;
16-2-ac-dc converter circuit module; 16-3-first serial communication circuit module;
16-4-second serial communication circuit module; 16-5-clock circuit module;
16-6-ethernet communication module; 16-7-data memory module;
16-8-the first relay; 16-9-the first contactor; 16-10-the second relay;
16-11-the second contactor; 16-12-WiFi wireless communication module;
17-U-shaped tubular heat exchanger; 18-resistive heater; 19-clamping plate;
20-cover plate; 21-sample clamps frock; 22-220V alternating current;
23-the first nine needles serial port; 24-the second nine needles serial port; 25-RJ-45 Ethernet interface;
26-interface installation region; 27-interface cover plate; 28-carrying handle;
29-the second heat-resisting dividing plate; 30-rotating shaft; 31-external power receptacle;
32-Frozen-thawed cycled case.
Embodiment
As shown in Fig. 1 ~ Fig. 5, the utility model comprises the identical Frozen-thawed cycled case 32 of multiple structure, the door 2 that each Frozen-thawed cycled case 32 includes casing 1 and is rotatably connected on casing 1, described door 2 embeds glass window 3 and touch LCD screen 4 are installed, described casing 1 bottom even is provided with multiple installation and fixes projection 5, described casing 1 top is evenly provided with multiple installation fixed groove 6 fixed projection 5 respectively with multiple installation and match, the power output interface 13 rear wall of described casing 1 being provided with the power input interface 7 for accessing 220V alternating current 22 and being connected with power input interface 7, the first heat-resisting dividing plate 8 for casing 1 inner space being divided into ante-chamber 9 and back cavity 10 is provided with in described casing 1, transformer 11 is provided with in described back cavity 10, refrigeration compressor 12, temperature sensor 14, humidity sensor 15 and freeze thawing state controller 16, described transformer 11 is connected with power input interface 7, the output terminal of described refrigeration compressor 12 is connected with the U-shaped tubular heat exchanger 17 stretched into through the first heat-resisting dividing plate 8 in ante-chamber 9, described ante-chamber 9 inner bottom part is provided with resistive heater 18, in described ante-chamber 9, middle position is evenly provided with multilayer sample and clamps frock 21, as shown in Figure 6, described sample clamps frock 21 by corrugated clamping plate 19 be fastened on clamping plate 19 top and the corrugated cover plate 20 forming multiple sample cavity volume that matches with clamping plate 19 forms, and in described casing 1, both sides sidewall is symmetrically arranged with multiplely to put for card the draw-in groove that multilayer sample clamps frock 21, as shown in Figure 7, described freeze thawing state controller 16 comprises micro controller module 16-1 and the ac-dc converter circuit module 16-2 for 220V alternating current 22 being converted to each electricity consumption module required voltage in freeze thawing state controller 16, and the data memory module 16-7 to connect with described micro controller module 16-1, first serial communication circuit module 16-3 and second serial communication circuit module 16-4, described touch LCD screen 4 connects with micro controller module 16-1, described temperature sensor 14 and humidity sensor 15 all connect with the input end of micro controller module 16-1, the input end of described micro controller module 16-1 is also connected to clock circuit module 16-5, the output terminal of described micro controller module 16-1 is connected to the first relay 16-8 and the first contactor 16-9 for being switched on or switched off the current supply circuit that transformer 11 is powered to resistive heater 18 that connect successively, and the second relay 16-10 and the second contactor 16-11 for being switched on or switched off the current supply circuit that 220V alternating current 22 is powered to refrigeration compressor 12 that connect successively, described first contactor 16-9 is connected on transformer 11 in the current supply circuit of resistive heater 18 power supply, described second contactor 16-11 is connected on 220V alternating current 22 in the current supply circuit of refrigeration compressor 12 power supply, described first serial communication circuit module 16-3 is connected with the first nine needles serial port 23 be arranged on casing 1 rear wall, described second serial communication circuit module 16-4 is connected with the second nine needles serial port 24 be arranged on casing 1 rear wall, as shown in Figure 8, multiple Frozen-thawed cycled case 32 is fixed projection 5 by the installation cooperatively interacted and is installed fixed groove 6 and is stacked together, the power input interface 7 be positioned on the Frozen-thawed cycled case 32 of bottom is connected with the 220V alternating current interface on external power receptacle 31, the power input interface 7 be positioned on the Frozen-thawed cycled case 32 on upper strata is connected with the power output interface 13 on the lower floor's Frozen-thawed cycled case 32 be adjacent, and the first nine needles serial port 23 be positioned on the Frozen-thawed cycled case 32 on upper strata is connected with the second nine needles serial port 24 on the lower floor's Frozen-thawed cycled case 32 be adjacent.
As shown in Figure 2 and Figure 5, in the present embodiment, described door 2 is rotatably connected on casing 1 by rotating shaft 30, the one side surrounding that described casing 1 and door 2 are fitted is fixedly connected with the first magnetic and inhales bar, and the one side surrounding that described door 2 and casing 1 are fitted is fixedly connected with to inhale the second magnetic that bar matches and inhale bar with described first magnetic.
As depicted in figs. 1 and 2, in the present embodiment, the both sides sidewall of described casing 1 is connected with carrying handle 28.The the second heat-resisting dividing plate 29 clamping frock 21 for separating resistive heater 18 and multilayer sample is provided with in described ante-chamber 9.
As shown in Figure 3 and Figure 7, in the present embodiment, described freeze thawing state controller 16 comprises the WiFi wireless communication module 16-12 and ethernet communication module 16-6 that connect with micro controller module 16-1, described ethernet communication module 16-6 is connected with the RJ-45 Ethernet interface 25 be arranged on casing 1 rear wall.
As shown in Figure 3, in the present embodiment, the rear wall of described casing 1 is provided with interface installation region 26, described casing 1 is rotatably connected to for opening or the interface cover plate 27 of closed interface installation region 26, described power input interface 7, power output interface 13, first nine needles serial port 23, second nine needles serial port 24 and RJ-45 Ethernet interface 25 are all arranged in interface installation region 26.
In the present embodiment, described micro controller module 16-1 is single-chip microcomputer.Described data memory module 16-7 is SD card data-carrier store.
As shown in Figure 8, when the utility model uses, connect the Frozen-thawed cycled case 32 being applicable to test quantity required, multiple Frozen-thawed cycled case 32 is fixed projection 5 by the installation cooperatively interacted and is installed fixed groove 6 and is stacked together, open the interface cover plate 27 of each Frozen-thawed cycled case 32, power input interface 7 on the Frozen-thawed cycled case 32 of bottom is connected with the 220V alternating current interface on external power receptacle 31 by power lead, and the power input interface 7 be positioned on the Frozen-thawed cycled case 32 on upper strata is connected with the power output interface 13 on the lower floor's Frozen-thawed cycled case 32 be adjacent, the first nine needles serial port 23 be positioned on the Frozen-thawed cycled case 32 on upper strata is connected with the second nine needles serial port 24 on the lower floor's Frozen-thawed cycled case 32 be adjacent.
When carrying out freezing-thawing test, the freeze thawing state parameter of each Frozen-thawed cycled case 32 is set by the touch LCD screen 4 operated on each Frozen-thawed cycled case 32, after setting, multiple sample is placed on clamping plate 19, and cover cover plate 20, then entirety puts into Frozen-thawed cycled case 32, by needing the sample carrying out different freeze thawing condition test to put into different Frozen-thawed cycled casees 32 respectively, this makes it possible to the difference freeze thawing condition test simultaneously realizing multiple sample.
Specifically, in each Frozen-thawed cycled case 32, temperature sensor 14 is for detecting in real time the temperature in Frozen-thawed cycled case 32, humidity sensor 15 is for detecting in real time the humidity in Frozen-thawed cycled case 32, clock circuit module 16-5 is used for providing real-time clock signal for micro controller module 16-1, when detected temperatures reaches heating-up temperature threshold value, first relay 16-8 and the first contactor 16-9 disconnects the current supply circuit that transformer 11 is powered to resistive heater 18, and resistive heater 18 stops heating; When detected temperatures reaches cryogenic temperature threshold value, the second relay 16-10 and the second contactor 16-11 disconnects the current supply circuit that 220V alternating current 22 is powered to refrigeration compressor 12, and refrigeration compressor 12 quits work, and U-shaped tubular heat exchanger 17 stops refrigeration.
In addition, owing to being provided with first serial communication circuit module 16-3 and second serial communication circuit module 16-4, therefore each Frozen-thawed cycled case 32 can be intercomed mutually by serial ports, can also be intercomed mutually by serial ports and external unit (as computing machine, panel computer etc.), after secondary development, the setting of freeze thawing state parameter can also be carried out by operation external unit to this freezing-thawing test device.Owing to being provided with WiFi wireless communication module 16-12 and ethernet communication module 16-6, therefore by after secondary development, this freezing-thawing test device and the communication being connected to the equipment in Internet network can also be realized, the remotely modifying of this freezing-thawing test device freeze thawing state parameter can be realized, and can remote monitoring freezing-thawing test process.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (8)
1. the freeze thawing of sample difference more than one kind state freezing-thawing test device, it is characterized in that: comprise the Frozen-thawed cycled case (32) that multiple structure is identical, each Frozen-thawed cycled case (32) includes casing (1) and is rotatably connected on the door (2) on casing (1), the upper embedding of described door (2) is provided with glass window (3) and touch LCD screen (4), described casing (1) bottom even is provided with multiple installation and fixes projection (5), described casing (1) top is evenly provided with multiple installation fixed groove (6) fixed projection (5) respectively with multiple installation and match, the power output interface (13) rear wall of described casing (1) being provided with the power input interface (7) for accessing 220V alternating current (22) and being connected with power input interface (7), the first heat-resisting dividing plate (8) for casing (1) inner space being divided into ante-chamber (9) and back cavity (10) is provided with in described casing (1), transformer (11) is provided with in described back cavity (10), refrigeration compressor (12), temperature sensor (14), humidity sensor (15) and freeze thawing state controller (16), described transformer (11) is connected with power input interface (7), the output terminal of described refrigeration compressor (12) is connected with the U-shaped tubular heat exchanger (17) stretched into through the first heat-resisting dividing plate (8) in ante-chamber (9), described ante-chamber (9) inner bottom part is provided with resistive heater (18), described ante-chamber (9) interior middle position is evenly provided with multilayer sample and clamps frock (21), described sample clamps frock (21) by corrugated clamping plate (19) be fastened on clamping plate (19) top and the corrugated cover plate (20) forming multiple sample cavity volume that matches with clamping plate (19) forms, and described casing (1) interior both sides sidewall is symmetrically arranged with multiplely put for card the draw-in groove that multilayer sample clamps frock (21), described freeze thawing state controller (16) comprises micro controller module (16-1) and the ac-dc converter circuit module (16-2) for 220V alternating current (22) being converted to each electricity consumption module required voltage in freeze thawing state controller (16), and the data memory module (16-7) to connect with described micro controller module (16-1), first serial communication circuit module (16-3) and second serial communication circuit module (16-4), described touch LCD screen (4) connects with micro controller module (16-1), described temperature sensor (14) and humidity sensor (15) all connect with the input end of micro controller module (16-1), the input end of described micro controller module (16-1) is also connected to clock circuit module (16-5), the output terminal of described micro controller module (16-1) is connected to the first relay (16-8) and the first contactor (16-9) for being switched on or switched off the current supply circuit that transformer (11) is powered to resistive heater (18) that connect successively, and the second relay (16-10) and the second contactor (16-11) for being switched on or switched off the current supply circuit that 220V alternating current (22) is powered to refrigeration compressor (12) that connect successively, described first contactor (16-9) is connected in the current supply circuit that transformer (11) powers to resistive heater (18), described second contactor (16-11) is connected in the current supply circuit that 220V alternating current (22) powers to refrigeration compressor (12), described first serial communication circuit module (16-3) is connected with the first nine needles serial port (23) be arranged on casing (1) rear wall, described second serial communication circuit module (16-4) is connected with the second nine needles serial port (24) be arranged on casing (1) rear wall, multiple Frozen-thawed cycled case (32) is fixed projection (5) by the installation cooperatively interacted and is installed fixed groove (6) and is stacked together, the power input interface (7) be positioned on the Frozen-thawed cycled case (32) of bottom is connected with the 220V alternating current interface on external power receptacle (31), the power input interface (7) be positioned on the Frozen-thawed cycled case (32) on upper strata is connected with the power output interface (13) in lower floor's Frozen-thawed cycled case (32) be adjacent, the first nine needles serial port (23) be positioned on the Frozen-thawed cycled case (32) on upper strata is connected with the second nine needles serial port (24) in lower floor's Frozen-thawed cycled case (32) be adjacent.
2. according to many samples difference freeze thawing state freezing-thawing test device according to claim 1, it is characterized in that: described door (2) is rotatably connected on casing (1) by rotating shaft (30), the one side surrounding that described casing (1) and door (2) are fitted is fixedly connected with the first magnetic and inhales bar, and the one side surrounding that described door (2) and casing (1) are fitted is fixedly connected with to inhale the second magnetic that bar matches and inhale bar with described first magnetic.
3., according to many samples difference freeze thawing state freezing-thawing test device according to claim 1, it is characterized in that: the both sides sidewall of described casing (1) is connected with carrying handle (28).
4. according to many samples difference freeze thawing state freezing-thawing test device according to claim 1, it is characterized in that: in described ante-chamber (9), be provided with the second heat-resisting dividing plate (29) clamping frock (21) for separating resistive heater (18) and multilayer sample.
5. according to many samples difference freeze thawing state freezing-thawing test device according to claim 1, it is characterized in that: described freeze thawing state controller (16) comprises the WiFi wireless communication module (16-12) and ethernet communication module (16-6) that connect with micro controller module (16-1), described ethernet communication module (16-6) is connected with the RJ-45 Ethernet interface (25) be arranged on casing (1) rear wall.
6. according to many samples difference freeze thawing state freezing-thawing test device according to claim 5, it is characterized in that: the rear wall of described casing (1) is provided with interface installation region (26), described casing (1) is rotatably connected to for opening or the interface cover plate (27) of closed interface installation region (26), described power input interface (7), power output interface (13), the first nine needles serial port (23), the second nine needles serial port (24) and RJ-45 Ethernet interface (25) are all arranged in interface installation region (26).
7., according to many samples difference freeze thawing state freezing-thawing test device according to claim 1, it is characterized in that: described micro controller module (16-1) is single-chip microcomputer.
8., according to many samples difference freeze thawing state freezing-thawing test device according to claim 1, it is characterized in that: described data memory module (16-7) is SD card data-carrier store.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120067.9U CN204423059U (en) | 2015-02-28 | 2015-02-28 | Many samples difference freeze thawing state freezing-thawing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120067.9U CN204423059U (en) | 2015-02-28 | 2015-02-28 | Many samples difference freeze thawing state freezing-thawing test device |
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|---|---|
| CN204423059U true CN204423059U (en) | 2015-06-24 |
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| CN201520120067.9U Expired - Fee Related CN204423059U (en) | 2015-02-28 | 2015-02-28 | Many samples difference freeze thawing state freezing-thawing test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271473A (en) * | 2017-08-22 | 2017-10-20 | 中国科学院寒区旱区环境与工程研究所 | The indoor simulated system that frozen-thaw process influences on soil environment |
| CN107356623A (en) * | 2017-07-28 | 2017-11-17 | 山东和富工程检测有限公司 | A kind of stone material roadbed freezing and thawing circulating test device automatically controlled |
| CN109709312A (en) * | 2018-12-10 | 2019-05-03 | 太原理工大学 | Wireless penetration controls concrete freeze thawing machine |
| CN113758960A (en) * | 2021-09-17 | 2021-12-07 | 同济大学 | Intelligent freeze-thaw cycle test device |
-
2015
- 2015-02-28 CN CN201520120067.9U patent/CN204423059U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356623A (en) * | 2017-07-28 | 2017-11-17 | 山东和富工程检测有限公司 | A kind of stone material roadbed freezing and thawing circulating test device automatically controlled |
| CN107271473A (en) * | 2017-08-22 | 2017-10-20 | 中国科学院寒区旱区环境与工程研究所 | The indoor simulated system that frozen-thaw process influences on soil environment |
| CN109709312A (en) * | 2018-12-10 | 2019-05-03 | 太原理工大学 | Wireless penetration controls concrete freeze thawing machine |
| CN113758960A (en) * | 2021-09-17 | 2021-12-07 | 同济大学 | Intelligent freeze-thaw cycle test device |
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