CN113028832A - Swing type temperature measuring device of vacuum induction melting and rapid hardening furnace for rare earth hydrogen storage alloy - Google Patents
Swing type temperature measuring device of vacuum induction melting and rapid hardening furnace for rare earth hydrogen storage alloy Download PDFInfo
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- CN113028832A CN113028832A CN202110227940.4A CN202110227940A CN113028832A CN 113028832 A CN113028832 A CN 113028832A CN 202110227940 A CN202110227940 A CN 202110227940A CN 113028832 A CN113028832 A CN 113028832A
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- rapid hardening
- temperature measuring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/06—Alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/08—Apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
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- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a swing type temperature measuring device of a rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace, which comprises a moving structure, wherein a distance measuring instrument is detachably connected in the middle of the side wall of a cross beam, which is far away from the rotating structure, and an installation structure is detachably connected at one end of the rotating structure, which is far away from a guide structure, and an infrared temperature measuring instrument is detachably connected in the installation structure. The detected temperature data is more accurate and the efficiency is higher.
Description
The technical field is as follows:
the invention belongs to the technical field of temperature detection equipment, and particularly relates to a swing type temperature measuring device of a vacuum induction melting and rapid hardening furnace for rare earth hydrogen storage alloy.
Background art:
vacuum melting rapid hardening stove is more efficient one kind in the present casting production trade and smelts the processing equipment, can carry out the high efficiency to the material that needs processed through vacuum melting rapid hardening stove and smelt mixedly, make multiple material mixture become a new product, and along with giving birth to the promotion of level, the production efficiency of present vacuum melting rapid hardening stove obtains the promotion that is showing, and present melting rapid hardening stove can also carry out the rapid hardening, make the liquid material of fusing together can the efficient more cool and condense, effectual improvement production machining efficiency.
In order to monitor the processing progress of the smelting rapid hardening furnace, the temperature inside the smelting rapid hardening furnace needs to be detected in real time, because the smelting rapid hardening furnace has a large volume, workers need to detect the smelting rapid hardening furnace step by step to ensure the uniform temperature in the furnace, but the manual detection efficiency is low, and the detection range capable of being effective is limited, so that a series of problems can be caused due to the fact that the temperature value is not accurate enough, even the processing can be caused to fail, and some simple mechanical detection can also cause the problem that the detection data is inaccurate due to the limitation of a movable range.
The invention content is as follows:
the invention aims to solve the problems, and provides a swing type temperature measuring device of a vacuum induction melting and rapid hardening furnace for rare earth hydrogen storage alloy, which can effectively solve the problems that the efficiency of manual detection is low and the effective detection range is limited through a moving structure and a guide structure, so that a series of problems can be caused due to inaccurate temperature values, even processing failure can be caused, and some simple mechanical detections are limited by the movable range, so that the detection data are inaccurate.
In order to solve the above problems, the present invention provides a technical solution: a swing type temperature measuring device of a rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace comprises a moving structure, wherein a guide structure is connected to the moving structure, a beam is connected to the guide structure, a rotating structure is connected to the middle of the top of the beam, a distance measuring instrument is detachably connected to the middle of the side wall of the beam, away from the rotating structure, on one side, away from the guide structure, of the rotating structure, a mounting structure is detachably connected to one end, away from the guide structure, of the rotating structure, and an infrared temperature measuring instrument is detachably connected to the inside of the;
the moving structure comprises a slide rail, a slide groove is formed in the slide rail, a slide block is connected in the slide groove in a sliding mode, a driven column is detachably connected to the top end of the slide block, auxiliary plates are fixedly connected to the side walls of two sides, far away from each other, of the driven column, and a motor is detachably connected to the side wall of one side of the slide rail;
the inner part of the sliding groove is rotatably connected with a threaded rod, the sliding block is sleeved on the threaded rod in a threaded manner, a limiting post is arranged below the threaded rod, the limiting post is fixedly connected into the sliding groove through two ends of the limiting post, the limiting post penetrates through and is connected with the sliding block in a sliding manner, and the output end of the motor extends into the sliding groove and is detachably connected with one end of the threaded rod;
the guide structure comprises a guide rail, the guide rail is fixedly connected to the top end of the driven column, moving grooves are formed in the side walls of the two sides, away from each other, of the guide rail, power plates are connected to the moving grooves in a sliding mode and are fixedly connected to the side walls of the two sides, away from each other, of the cross beam respectively.
Preferably, the bottom of one end of the power plate, which is positioned in the moving groove, is fixedly connected with a connecting plate, the bottom of the connecting plate is detachably connected with a double-end motor, two output ends of the double-end motor are detachably connected with rollers, two limiting grooves are formed in the bottom of the moving groove, and the rollers are connected in the corresponding limiting grooves in a rolling manner.
Preferably, the rotating structure comprises a bottom column, the bottom column is detachably connected to the middle of the top of the cross beam through the bottom end of the bottom column, the top end of the bottom column is rotatably connected with a movable column, an inner groove is formed in the bottom column, a driving motor is detachably connected to the middle of the bottom in the inner groove, an inclined supporting plate is detachably connected to the output end of the driving motor, and the inclined supporting plate is detachably connected to the bottom end, located in the inner groove, of the movable column through the top end of the inclined supporting plate.
Preferably, the mounting structure comprises a bottom plate, the bottom plate is detachably connected to the top end of the movable column through the bottom end of the bottom plate, two side edges, away from each other, of the top end of the bottom plate are fixedly connected with the enclosing plates, the infrared thermometer is located at the top end of the bottom plate and located between the two enclosing plates, the top ends of the enclosing plates are connected with a top plate, through holes are formed in four corners of the top plate, fixing screws are connected to the through holes in an internal thread mode, and the top plate is detachably connected with the two enclosing plates through the four fixing.
Preferably, the middle of the enclosing plate is in threaded connection with an adjusting rod, one end of the adjusting rod is rotatably connected with a clamping plate, and a groove is formed in the middle of the side wall of the enclosing plate, close to the clamping plate.
Preferably, the bottom of the slide rail is fixedly connected with a fixing plate, a plurality of screw holes are uniformly formed in the fixing plate, and the moving structure is detachably connected to the smelting rapid hardening furnace through the fixing plate.
Preferably, the auxiliary plate is detachably attached to the bottom of the guide rail through the top end thereof.
The invention has the beneficial effects that: the double-head motor drives the two rollers to rotate, so as to drive the movement of the beam and the rotating structure, so that the distance between the infrared thermometer and the furnace body can be conveniently adjusted, more accurate temperature data can be detected, temperature values detected by different distances can be clearly known through the distance measuring instrument, workers can debug the furnace body better, the smoothness of smelting processing is ensured, the mounting structure and the infrared thermometer can be driven to rotate through the driving motor, the detection range of the infrared thermometer is increased, the detected temperature data is more accurate, the efficiency is higher, the motor drives the threaded rod to rotate, so as to drive the sliding block to move along the sliding groove, the sliding block can be ensured to move smoothly through the limiting column which is connected in the sliding block in a sliding manner, and the guide structure and the rotating structure can be driven to move transversely through the sliding block, the driven column, the motor and the threaded rod, the infrared thermometer can detect every point of the furnace body efficiently, multiple groups of detection can be carried out as required, the accuracy of detection data is ensured, workers can adjust the smelting rapid hardening furnace in real time conveniently, and the smoothness of processing is ensured.
The infrared thermometer is provided with the moving structure, and the infrared thermometer can be driven to move along the furnace body through the moving structure, so that the temperature of each point of the furnace body can be conveniently detected, and the real-time adjustment of workers can be conveniently carried out.
The infrared thermometer is provided with the guide structure, the distance between the infrared thermometer and the furnace body can be adjusted in real time through the guide structure, the detected temperatures at different positions can be conveniently collected, and the accuracy of temperature values is improved.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional structural view of the moving structure of the present invention;
FIG. 3 is a schematic plan view of the guiding structure of the present invention;
FIG. 4 is a cross-sectional structural view of a rotary structure of the present invention;
fig. 5 is a schematic plan view of the mounting structure of the present invention.
In the figure: 1. a moving structure; 11. a slide rail; 12. a chute; 121. a threaded rod; 122. a limiting column; 13. a slider; 14. a driven column; 15. an auxiliary plate; 16. a motor; 17. a fixing plate; 18. a screw hole; 2. a guide structure; 21. a guide rail; 22. a moving groove; 221. a connector tile; 222. a double-headed motor; 223. a roller; 224. a limiting groove; 23. a power plate; 24. a cross beam; 25. a range finder; 3. a rotating structure; 31. a bottom pillar; 311. an inner tank; 312. a drive motor; 313. a diagonal bracing plate; 32. a movable post; 4. a mounting structure; 41. a base plate; 42. enclosing plates; 421. adjusting a rod; 422. a groove; 423. a splint; 43. a top plate; 44. A through hole; 45. fixing screws; 5. an infrared thermometer.
The specific implementation mode is as follows:
as shown in fig. 1 to 5, the following technical solutions are adopted in the present embodiment: a swing type temperature measuring device of a rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace comprises a moving structure 1, wherein a guide structure 2 is connected to the moving structure 1, a beam 24 is connected to the guide structure 2, a rotating structure 3 is connected to the middle of the top of the beam 24, a distance measuring instrument 25 is detachably connected to the middle of the side wall of one side, away from the rotating structure 3, of the beam 24, a mounting structure 4 is detachably connected to one end, away from the guide structure 2, of the rotating structure 3, and an infrared temperature measuring instrument 5 is detachably connected to the inside of the mounting structure 4;
the moving structure 1 comprises a slide rail 11, a slide groove 12 is formed in the slide rail 11, a slide block 13 is connected in the slide groove 12 in a sliding manner, a driven column 14 is detachably connected to the top end of the slide block 13, auxiliary plates 15 are fixedly connected to the side walls of two sides, far away from each other, of the driven column 14, and a motor 16 is detachably connected to the side wall of one side of the slide rail 11;
a threaded rod 121 is rotatably connected inside the chute 12, the sliding block 13 is in threaded sleeve connection with the threaded rod 121, a limiting column 122 is arranged below the threaded rod 121, the limiting column 122 is fixedly connected into the chute 12 through two ends of the limiting column 122, the limiting column 122 penetrates through and is in sliding connection with the sliding block 13, and the output end of the motor 16 extends into the chute 12 and is detachably connected with one end of the threaded rod 121;
guide structure 2 includes guide rail 21, guide rail 21 fixed connection is on the top of driven post 14, the shifting chute 22 has all been seted up to the both sides lateral wall that guide rail 21 kept away from each other, equal sliding connection has power plate 23 in the shifting chute 22, two power plate 23 difference fixed connection is on the both sides lateral wall that crossbeam 24 kept away from each other.
The bottom of one end of the power plate 23, which is located in the moving groove 22, is fixedly connected with a connecting plate 221, the bottom end of the connecting plate 221 is detachably connected with a double-head motor 222, two output ends of the double-head motor 222 are detachably connected with rollers 223, two limiting grooves 224 are formed in the bottom of the moving groove 22, and the rollers 223 are connected in the corresponding limiting grooves 224 in a rolling manner.
Wherein, revolution mechanic 3 includes the sill pillar 31, sill pillar 31 is through its bottom detachable connection in the middle of the top of crossbeam 24, sill pillar 31 top is rotated and is connected with movable post 32, the inside groove 311 of having seted up of sill pillar 31, detachable connection has driving motor 312 in the middle of the bottom in the inside groove 311, detachable connection has inclined strut plate 313 on driving motor 312's the output, inclined strut plate 313 is located the bottom of inside groove 311 through its top detachable connection at movable post 32.
Wherein, mounting structure 4 includes bottom plate 41, bottom plate 41 is on the top of activity post 32 through its bottom detachable connection, the equal fixedly connected with bounding wall 42 in both sides border department that the bottom plate 41 top was kept away from each other, infrared thermometer 5 is located bottom plate 41 top and is located between two bounding walls 42, two the top of bounding wall 42 is connected with roof 43, through-hole 44 has all been seted up to the four corners department of roof 43, through-hole 44 female connection has set screw 45, roof 43 is through four set screw 45 and two bounding walls 42 detachable connection.
The middle of the coaming 42 is in threaded connection with an adjusting rod 421, one end of the adjusting rod 421 is rotatably connected with a clamping plate 423, and a groove 422 is formed in the middle of the side wall of the coaming 42 close to the clamping plate 423.
The bottom of the slide rail 11 is fixedly connected with a fixing plate 17, a plurality of screw holes 18 are uniformly formed in the fixing plate 17, and the moving structure 1 is detachably connected to the smelting rapid hardening furnace through the fixing plate 17.
Wherein the auxiliary plate 15 is detachably attached to the bottom of the guide rail 21 through the top end thereof.
Specifically, the method comprises the following steps: a swing type temperature measuring device of a rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace, when in use, firstly an infrared thermometer 5 is placed on a bottom plate 41, then an adjusting rod 421 is rotated, a clamping plate 423 is pushed by the adjusting rod 421 to clamp and fix the infrared thermometer 5, so that the infrared thermometer 5 can be firmly connected in a mounting structure 4, then a top plate 43 is connected on the top ends of two enclosing plates 42 by using a fixing screw 45 through a through hole 44, the infrared thermometer 5 can be protected through the top plate 43, the temperature detection data is prevented from being inaccurate due to the external influence, the middle of the bottom plate 41 is detachably connected with a movable column 32, the bottom end of the movable column 32 positioned in an inner groove 311 is detachably connected with the output end of a driving motor 312 through an inclined supporting plate 313, the driving motor 312 can drive the mounting structure 4 and the infrared thermometer 5 to rotate, the detection range of the infrared thermometer 5 is enlarged, the detected temperature data is more accurate, the efficiency is higher, the bottom end of the rotating structure 3 is detachably connected with the guide structure 2, the bottom column 31 of the rotating structure 3 is detachably connected with the cross beam 24 through the bottom end of the bottom column, the two side walls of the cross beam 24, which are far away from each other, are fixedly connected with the power plates 23, one ends of the two power plates 23 are slidably connected in the moving grooves 22 formed in the two side walls of the guide rails 21, the bottom of one end of the power plate 23, which is positioned in the moving groove 22, is fixedly connected with the connecting plate 221, the bottom of the connecting plate 221 is detachably connected with the double-end motor 222, the double-end motor 222 drives the two rollers 223 to rotate, so as to drive the cross beam 24 and the rotating structure 3 to move, and be convenient for adjusting the distance between the infrared thermometer 5, the distance measuring instrument 25 is detachably connected in the middle of the bottom of the cross beam 24, temperature values detected by different distances can be clearly known through the distance measuring instrument 25, a worker can conveniently and better debug the furnace body, the smelting processing is ensured to be smooth, the power plate 23 can be ensured to move smoothly through the limiting groove 224 arranged at the bottom in the moving groove 22, the driven column 14 is detachably connected at the bottom of the guide rail 21, the auxiliary plates 15 fixed on the side walls of two sides of the driven column 14 are mutually far away from each other, the connection between the guide rail 21 and the driven column 14 can be more stable, the sliding block 13 is detachably connected at the bottom of the driven column 14, the sliding block 13 is slidably connected in the sliding groove 12, the motor 16 is detachably connected on the outer wall of one side of the sliding rail 11, the output end of the motor 16 extends into the sliding groove 12 and is detachably connected with one end of the threaded rod 121, and, drive the rotation of threaded rod 121 through motor 16, thereby drive slider 13 and remove along spout 12, spacing post 122 through sliding connection in slider 13, can ensure the smoothness that slider 13 removed, through slider 13, driven post 14, motor 16 and threaded rod 121 can drive guide structure 2 and revolution mechanic 3 and carry out horizontal removal, make infrared thermometer 5 can all detect every point of furnace body, can all detect every point of furnace body by the efficient through the aforesaid, can carry out multiunit's detection as required, ensure the accuracy of detected data, the staff of being convenient for carries out real-time adjustment to smelting rapid hardening stove, ensure the smoothness of processing.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (7)
1. The swing type temperature measuring device of the rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace is characterized by comprising a moving structure (1), wherein the moving structure (1) is connected with a guide structure (2), the guide structure (2) is connected with a beam (24), a rotating structure (3) is connected in the middle of the top of the beam (24), a distance measuring instrument (25) is detachably connected in the middle of the side wall of one side of the beam (24) far away from the rotating structure (3), one end of the rotating structure (3) far away from the guide structure (2) is detachably connected with a mounting structure (4), and an infrared temperature measuring instrument (5) is detachably connected in the mounting structure (4);
the moving structure (1) comprises a sliding rail (11), a sliding groove (12) is formed in the sliding rail (11), a sliding block (13) is connected in the sliding groove (12) in a sliding mode, a driven column (14) is detachably connected to the top end of the sliding block (13), auxiliary plates (15) are fixedly connected to the side walls of two sides, far away from each other, of the driven column (14), and a motor (16) is detachably connected to the side wall of one side of the sliding rail (11);
a threaded rod (121) is rotatably connected to the inside of the sliding groove (12), the sliding block (13) is sleeved on the threaded rod (121) in a threaded manner, a limiting column (122) is arranged below the threaded rod (121), the limiting column (122) is fixedly connected into the sliding groove (12) through two ends of the limiting column, the limiting column (122) penetrates through and is connected with the sliding block (13) in a sliding manner, and the output end of the motor (16) extends into the sliding groove (12) and is detachably connected with one end of the threaded rod (121);
guide structure (2) include guide rail (21), guide rail (21) fixed connection is on the top of driven post (14), shifting chute (22) have all been seted up to the both sides lateral wall that guide rail (21) kept away from each other, equal sliding connection has power board (23), two in shifting chute (22) power board (23) fixed connection respectively is on the both sides lateral wall that crossbeam (24) kept away from each other.
2. The swing type temperature measuring device of the rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace according to claim 1, characterized in that: the power plate (23) is located one end bottom fixedly connected with connection plate (221) in shifting chute (22), the bottom detachable connection of connection plate (221) has double-end motor (222), two outputs of double-end motor (222) all can be connected with gyro wheel (223) in the detachable mode, two spacing grooves (224) have been seted up to the bottom in shifting chute (22), gyro wheel (223) roll connection is in corresponding spacing groove (224).
3. The swing type temperature measuring device of the rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace according to claim 1, characterized in that: revolution mechanic (3) include sill pillar (31), sill pillar (31) are through its bottom detachable connection in the middle of the top of crossbeam (24), sill pillar (31) top is rotated and is connected with movable post (32), inside groove (311) has been seted up in sill pillar (31), detachable connection has driving motor (312) in the middle of the bottom in inside groove (311), detachable connection has inclined strut board (313) on the output of driving motor (312), inclined strut board (313) are located the bottom of inside groove (311) through its top detachable connection at movable post (32).
4. The swing type temperature measuring device of the rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace according to claim 1, characterized in that: mounting structure (4) include bottom plate (41), bottom plate (41) are on the top of activity post (32) through its bottom detachable connection, the equal fixedly connected with bounding wall (42) of both sides border department that keeps away from each other on bottom plate (41) top, infrared thermometer (5) are located bottom plate (41) top and are located between two bounding walls (42), two the top of bounding wall (42) is connected with roof (43), through-hole (44) have all been seted up to the four corners department of roof (43), through-hole (44) female connection has set screw (45), roof (43) are through four set screw (45) and two bounding walls (42) detachable connection.
5. The swing type temperature measuring device of the rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace according to claim 4, characterized in that: threaded connection has regulation pole (421) in the middle of bounding wall (42), the one end of adjusting pole (421) is rotated and is connected with splint (423), set up in the middle of bounding wall (42) one side lateral wall near splint (423) fluted (422).
6. The swing type temperature measuring device of the rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace according to claim 1, characterized in that: the bottom fixedly connected with fixed plate (17) of slide rail (11), a plurality of screw (18) have evenly been seted up on fixed plate (17), removal structure (1) is through fixed plate (17) detachable connection on the smelting rapid hardening stove.
7. The swing type temperature measuring device of the rare earth hydrogen storage alloy vacuum induction melting rapid hardening furnace according to claim 1, characterized in that: the auxiliary plate (15) is detachably connected to the bottom of the guide rail (21) through the top end of the auxiliary plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110227940.4A CN113028832A (en) | 2021-03-02 | 2021-03-02 | Swing type temperature measuring device of vacuum induction melting and rapid hardening furnace for rare earth hydrogen storage alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110227940.4A CN113028832A (en) | 2021-03-02 | 2021-03-02 | Swing type temperature measuring device of vacuum induction melting and rapid hardening furnace for rare earth hydrogen storage alloy |
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| Publication Number | Publication Date |
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| CN113028832A true CN113028832A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110227940.4A Withdrawn CN113028832A (en) | 2021-03-02 | 2021-03-02 | Swing type temperature measuring device of vacuum induction melting and rapid hardening furnace for rare earth hydrogen storage alloy |
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| CN (1) | CN113028832A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117571357A (en) * | 2024-01-15 | 2024-02-20 | 临沂市交通制冷工程有限公司 | Refrigerating capacity measuring device of refrigerator |
-
2021
- 2021-03-02 CN CN202110227940.4A patent/CN113028832A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117571357A (en) * | 2024-01-15 | 2024-02-20 | 临沂市交通制冷工程有限公司 | Refrigerating capacity measuring device of refrigerator |
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Application publication date: 20210625 |
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