CN215812235U - Building material apparent density automatic measuring instrument - Google Patents
Building material apparent density automatic measuring instrument Download PDFInfo
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- CN215812235U CN215812235U CN202121931246.2U CN202121931246U CN215812235U CN 215812235 U CN215812235 U CN 215812235U CN 202121931246 U CN202121931246 U CN 202121931246U CN 215812235 U CN215812235 U CN 215812235U
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- 239000004566 building material Substances 0.000 title claims abstract description 76
- 238000005303 weighing Methods 0.000 claims abstract description 107
- 238000006073 displacement reaction Methods 0.000 claims abstract description 38
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 10
- 239000011111 cardboard Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to an automatic measuring instrument for apparent density of building materials, which relates to the field of measuring the apparent density of building materials and comprises a frame, a weighing component and three groups of ranging components, wherein the weighing component comprises a weighing platform which is connected on the frame, two groups of ranging components are symmetrically distributed on two sides of the weighing platform, and the other group of ranging components is positioned above the weighing platform; the range finding subassembly includes the carriage release lever, the direction sliding connection that the carriage release lever and frame are close to or keep away from the platform of weighing, one side that the carriage release lever is close to the platform of weighing all is connected with a plurality of displacement sensor, the one end that displacement sensor kept away from the carriage release lever all is connected with pressure sensor, one side that the platform of weighing was kept away from to the carriage release lever all is connected with the drive division, the drive division is used for driving the carriage release lever and slides towards the direction that is close to the platform of weighing, drive division, displacement sensor and pressure sensor all are connected with control system. The method and the device have the effect that the measured building material data are more visual and accurate.
Description
Technical Field
The application relates to the field of building material apparent density measurement, in particular to an automatic building material apparent density measuring instrument.
Background
The apparent density can reflect the properties of strength, water absorption, impermeability and the like of the building material. Building materials have high requirements for strength, water absorption and impermeability, and therefore, apparent density is an important basic property of the building materials, and the apparent density of the building materials is usually measured by using an apparent density measuring instrument.
The construction material measuring instrument includes a volume measuring device that measures a volume of a material and a mass measuring device that measures a mass of the material and then calculates by a formula.
For the related technologies, the inventor considers that the manual measurement and calculation errors are large, and the measured building material data are not intuitive and accurate enough.
SUMMERY OF THE UTILITY MODEL
In order to make the building material data that measure more directly perceived and accurate, this application provides a building material apparent density automatic measurement appearance.
The application provides a building material apparent density automatic measurement appearance adopts following technical scheme:
an automatic measuring instrument for apparent density of building materials is connected with a control system and comprises a rack, a weighing assembly and three groups of ranging assemblies, wherein the weighing assembly comprises a weighing table, the weighing table is connected to the rack, the two groups of ranging assemblies are symmetrically distributed on two sides of the weighing table, and the one group of ranging assemblies is positioned above the weighing table; the range finding subassembly includes the carriage release lever, the direction sliding connection that the carriage release lever and frame are close to or keep away from the platform of weighing, one side that the carriage release lever is close to the platform of weighing all is connected with a plurality of displacement sensor, the one end that displacement sensor kept away from the carriage release lever all is connected with pressure sensor, one side that the platform of weighing was kept away from to the carriage release lever all is connected with the drive division, the drive division is used for driving the carriage release lever and slides towards the direction that is close to the platform of weighing, drive division, displacement sensor and pressure sensor all are connected with control system.
By adopting the technical scheme, the distance between the displacement sensors which are symmetrical on two sides of the weighing platform is set, the distance between the displacement sensors above the weighing platform and the top surface of the weighing platform is set, the building material is placed on the weighing platform along the length direction and perpendicular to the position of the movable rod, the weighing platform weighs the quality of the building material and transmits the building material to the control system, then the driving part drives the movable rod to move towards the direction close to the weighing platform, when one end of the pressure sensor close to the weighing platform is abutted to the building material, the pressure sensor transmits a signal to the control system, the control system controls the driving part to stop running, meanwhile, the displacement sensor records the running distance of the movable rod and uploads the running distance to the control system, the building material is measured again after rotating for ninety degrees, and the control system calculates the data such as the length, the width, the height, the apparent density and the like of the building material according to the initial distance and the moving distance of the movable rod, the measurement and calculation are more accurate, and the measurement result is more visual.
Optionally, the drive division includes connecting rod, lead screw, guide bar and driving piece, the connecting rod is fixed to be set up in the frame, the lead screw level sets up and perpendicular to connecting rod, the lead screw wear to establish in the connecting rod and with connecting rod threaded connection, the lead screw is close to the one end of carriage release lever and is connected with the carriage release lever rotation, the other end and the driving piece of lead screw are connected, the driving piece is connected with the frame, be used for driving the lead screw rotation, the guide bar level sets up and perpendicular to connecting rod, the guide bar is worn to establish in the connecting rod, guide bar and connecting rod sliding connection, and with carriage release lever fixed connection.
Through adopting above-mentioned technical scheme, the driving piece drives the lead screw and rotates for the carriage release lever is to the direction motion of being close to the platform of weighing, and the guide bar also is to the direction motion of being close to the platform of weighing simultaneously, and under the guide of guide bar, the motion of carriage release lever is more steady, thereby makes measured data more accurate.
Optionally, a first elastic element is fixedly arranged between the displacement sensor and the moving rod.
Through adopting above-mentioned technical scheme, displacement sensor and pressure sensor move to the building material surface along with the carriage release lever, and pressure sensor and building material surface butt, first elastic component are compressed, and building material and pressure sensor pressure is too big when preventing to remove, leads to building material compression deflection too big to make measured data inaccurate.
Optionally, the displacement sensors are uniformly distributed along the length direction of the moving rod.
By adopting the technical scheme, during measurement, the number of the working displacement sensors and the working pressure sensors is automatically selected according to the size of the building material, the movable rod moves towards the direction close to the weighing platform, and finally the pressure sensors are abutted against the surface of the building material and stop moving; when two sides of the measured building material close to the movable rod are not parallel, the compression amount of different first elastic pieces is different, so that displacement data measured by the displacement sensor are different, and finally, the data are transmitted to a control system to be processed, and accurate measurement data are obtained.
Optionally, the weighing platform is connected with a clamping part, the clamping part comprises a first limiting strip and a second limiting strip which are fixedly arranged on the weighing platform, a clamping strip is arranged on one side, close to the first limiting strip, of the second limiting strip, and a second elastic part is fixedly arranged between the clamping strip and the second limiting strip.
Through adopting above-mentioned technical scheme, promote the card strip to the position that is close to the spacing strip of second for the compression of second elastic component, the distance grow between card strip and the first spacing strip places building material between first spacing strip and card strip, and loosens the card strip, makes building material fixed between card strip and first spacing strip, prevents that pressure sensor from promoting the building material motion after contacting the building material.
Optionally, the rack is fixedly connected with a support plate, the weighing platform is located at the top of the support plate and is rotatably connected with the support plate, and a rotation axis of the weighing platform is vertically arranged.
Through adopting above-mentioned technical scheme, when building material length direction was perpendicular with the carriage release lever, the length of measuring building material, then rotate weighing platform for building material's width direction is perpendicular with the carriage release lever, can measure building material's width, need not to take off building material.
Optionally, the side of the weighing platform is fixedly connected with a locking block, the locking block is provided with a through hole, the supporting plate is provided with a first locking hole and a second locking hole, a locking pin is inserted into the through hole, the bottom end of the locking pin is inserted into the first locking hole or the second locking hole, the weighing platform rotates until the length direction of the clamping strip is perpendicular to the length direction of the table plate, the through hole is coaxial with the first locking hole, and the weighing platform rotates until the length direction of the clamping strip is parallel to the length direction of the table plate, and the through hole is coaxial with the second locking hole.
Through adopting above-mentioned technical scheme, insert the inside of establishing at through-hole and first locking hole simultaneously with the fitting pin, it is fixed to weigh the platform, building material rotates along with weighing the platform when preventing pressure sensor and building material butt, measure building material's length, extract the fitting pin after the measurement, it is rotatory to through-hole and the coincidence of second locking hole axis to weigh the platform, then insert the inside of establishing at through-hole and second locking hole when will fitting pin, it is fixed to weigh the platform, measure building material's width.
Optionally, the driving member is a motor, and the motor is connected with the rack in a sliding manner along a direction close to or far away from the weighing platform.
Through adopting above-mentioned technical scheme, after the starter motor, motor output shaft drives the lead screw and rotates, and motor and frame sliding connection prevent that the motor from rotating along with the output shaft, and motor and table sliding connection, motor and carriage release lever synchronous motion simultaneously.
In summary, the present application includes at least one of the following beneficial technical effects:
the distance measuring assembly is simultaneously connected with a pressure sensor and a displacement sensor, the pressure sensor and the displacement sensor move along with the moving rod, the pressure sensor transmits a signal to the control system after receiving a certain pressure, the moving rod stops moving, the displacement sensor transmits the moving distance to the control system, the control system directly obtains data through calculation, and the measuring result is visual;
the weighing platform is rotatably connected with the supporting plate, when the length is measured, the locking pin is simultaneously inserted into the through hole and the first locking hole, the weighing platform is fixed, when the width is measured, the locking pin is pulled out and the weighing platform is rotated, so that the through hole is overlapped with the axis of the second locking hole, and the locking pin is simultaneously inserted into the through hole and the second locking hole, so that the measuring material is not required to be taken;
the clamping part fixedly connected to the weighing platform clamps the building material on the clamping plate completely, and prevents the increase of measurement error caused by the movement of the building material when the pressure sensor is abutted to the building material.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is an exploded view of an embodiment of the present application, intended to show a weighing assembly;
fig. 3 is an exploded view of a ranging assembly according to an embodiment of the present disclosure.
Description of reference numerals: 1. a frame; 11. a table plate; 2. a weighing assembly; 21. a weighing platform; 211. a locking block; 2111. a through hole; 212. a locking pin; 22. a clamping part; 221. clamping a plate; 222. a first limit strip; 223. a second limit strip; 224. clamping the strip; 225. a first spring; 23. a support plate; 231. a first locking hole; 232. a second locking hole; 3. a ranging assembly; 31. a travel bar; 311. a displacement sensor; 312. a pressure sensor; 313. a sleeve; 314. a second spring; 32. a drive section; 321. a connecting rod; 322. a lead screw; 323. a guide bar; 324. a motor; 3241. a slider; 3242. a slide rail.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses an automatic measuring instrument for apparent density of building materials, which is connected with a control system. Referring to fig. 1, the automatic measuring instrument for apparent density of building materials comprises a rack 1, a weighing component 2 and three groups of distance measuring components 3, wherein a table plate 11 is fixedly connected to the rack 1, and the table plate 11 is a rectangular plate horizontally arranged; the weighing assembly 2 is arranged on the top of the table plate 11 and is used for weighing; wherein two sets of range finding subassemblies 3 symmetric distribution are in weighing the both sides of subassembly 2 for the length and the width of measurement material, and another group's range finding subassembly 3 is located weighing the top of subassembly 2, and is used for measuring building material's height.
Referring to fig. 1 and 2, the weighing assembly 2 comprises a weighing platform 21 and a clamping part 22, the weighing platform 21 is in a circular truncated cone shape, the axis of the weighing platform 21 is vertically arranged, and the weighing platform 21 is connected with a control system; chucking part 22 is located the top of weighing platform 21, chucking part 22 includes cardboard 221, cardboard 221 is the rectangular plate of horizontal setting, the length direction of cardboard 221 is the same with the length direction of table 11, the bottom and the weighing platform 21 fixed connection of cardboard 221, cardboard 221 top length direction's the first spacing strip 222 of one end fixedly connected with, the spacing strip 223 of other end fixedly connected with second, the length direction of the equal level setting of length direction of first spacing strip 222 and the spacing strip 223 of second and perpendicular to cardboard 221, be provided with card strip 224 between first spacing strip 222 and the spacing strip 223 of second, be provided with the first elastic component of a plurality of between card strip 224 and the spacing strip 223 of second, first elastic component is first spring 225, the axis level setting of first spring 225 is just perpendicular with the length direction of the spacing strip 223 of second, the one end and the spacing strip 223 fixed connection of second of first spring 225, the other end and card strip 224 fixed connection.
In use, the card strip 224 is pushed towards the direction close to the second limiting strip 223, so that the distance between the card strip 224 and the first limiting strip 222 is increased, then the building material is placed on the card board 221, and at the moment, the weighing platform 21 weighs the building material and transmits the data to the control system.
Referring to fig. 1 and 2, the bottom of the weighing platform 21 is rotatably connected with a support plate 23, the support plate 23 is in a circular plate shape and is coaxially arranged with the weighing platform 21, the support plate 23 is fixedly connected to the frame 1, a locking block 211 is fixedly connected to the side surface of the weighing platform 21, the locking block 211 is located at the top of the support plate 23, a through hole 2111 is formed in the locking block 211, a first locking hole 231 and a second locking hole 232 are formed in the support plate 23, a locking pin 212 is inserted into the through hole 2111, the bottom end of the locking pin 212 is inserted into the first locking hole 231 or the second locking hole 232, when the weighing platform 21 rotates to the length direction of the clamping plate 221 and is parallel to the length direction of the table plate 11, the through hole 2111 is coaxial with the first locking hole 231, and when the weighing platform 21 rotates to the length direction of the clamping plate 221 and is perpendicular to the length direction of the table plate 11, the through hole 2111 is coaxial with the second locking hole 232.
Referring to fig. 1 and 3, the distance measuring assembly 3 includes a moving rod 31 and a driving portion 32, the driving portion 32 includes a connecting rod 321 and a screw rod 322, the connecting rod 321 is horizontally disposed, a length direction of the connecting rod 321 is perpendicular to a length direction of the table 11, the connecting rod 321 is fixedly connected to the rack 1, the screw rod 322 penetrates through the connecting rod 321, the screw rod 322 is horizontally disposed and perpendicular to the connecting rod 321, a driving member is disposed at one end of the screw rod 322, which is far away from the weighing platform 21, the driving member is a motor 324, a sliding rail 3242 is fixedly connected to the rack 1, a length direction of the sliding rail 3242 is the same as a length direction of the screw rod 322, a sliding block 3241 is fixedly connected to the motor 324, the sliding block 3241 slides in the sliding rail 3242, an output shaft of the motor 324 is fixedly connected to the screw rod 322, and the motor 324 is connected to the control system; one end of the screw rod 322 close to the weighing platform 21 is rotatably connected with the moving rod 31, the moving rod 31 is parallel to the connecting rod 321, two guide rods 323 are arranged between the moving rod 31 and the connecting rod 321, the two guide rods 323 are horizontally arranged and perpendicular to the connecting rod 321, the two guide rods 323 are symmetrically distributed on two sides of the screw rod 322, the guide rods 323 are arranged in the connecting rod 321 in a penetrating manner and are slidably connected with the connecting rod 321, and one end of the guide rod 323 close to the moving rod 31 is fixedly connected with the moving rod 31.
Referring to fig. 1 and 3, one side of the moving rod 31 close to the weighing platform 21 is fixedly connected with a plurality of sleeves 313, the plurality of sleeves 313 are uniformly distributed along the length direction of the moving rod 31, the sleeves 313 are horizontally arranged, the axis of the sleeves 313 is perpendicular to the moving rod 31, one end of the sleeves 313 close to the weighing platform 21 is opened, the sleeves 313 are internally and fixedly connected with second elastic parts, the second elastic parts are second springs 314, the second springs 314 are coaxially arranged with the sleeves 313, one ends of the second springs 314 are fixedly connected with the bottoms of the sleeves 313, the other ends of the second springs 311 are fixedly connected with displacement sensors 311, one ends of the displacement sensors 311 close to the second springs 314 are located in the sleeves 313, the other ends of the displacement sensors 311 are fixedly connected with pressure sensors 312, and the displacement sensors 311 and the pressure sensors 312 are both connected with a control system.
When the weighing machine is used, building materials are placed on the clamping plate 221, the locking pins 212 are inserted into the through holes 2111 and the first locking holes 231, the weighing platform 21 is fixed, the length direction of the building materials is perpendicular to the moving rod 31 at the moment, the initial distance between the displacement sensors 311 which are symmetrically arranged on two sides of the weighing platform 21 is set, the distance between the displacement sensor 311 above the weighing platform 21 and the top of the weighing platform 21 is set, the motor 324 is started to drive the lead screw 322 to rotate, the moving rods 31 on two sides of the weighing platform 21 move towards the direction close to the weighing platform 21, the moving rod 31 above the weighing platform 21 vertically moves downwards at the same time until the pressure sensor 312 is abutted against the surface of the building materials, the pressure sensor 312 senses certain pressure and transmits signals to the control system, the motor 324 is turned off by the control system, the displacement sensors 311 record the moving distance and transmit the moving distance to the control system, and the initial distance between the displacement sensors 311 which are symmetrically arranged on two sides of the weighing platform 21 is subtracted from the displacement sensors 311 on two sides of the weighing platform 21 The length of the building material can be obtained by the moving distance of 311, and the height of the building material can be obtained by subtracting the moving distance of 311 above the weighing platform 21 from the distance between 311 above the weighing platform 21 and the top of the weighing platform 21. Starting the motor 324 to enable the moving rod 31 to move towards the direction far away from the weighing platform 21, then pulling out the locking pin 212 from the through hole 2111 and the first locking hole 231, rotating the weighing platform 21 until the through hole 2111 is coaxial with the second locking hole 232, then inserting the locking pin 212 into the through hole 2111 and the second locking hole 232, at the moment, enabling the width direction of the building material to be perpendicular to the moving rod 31, starting the motor 324 again, repeating the length measuring process to obtain the width of the building material, transmitting data to the control system, and calculating the data such as the strength, the water absorption rate and the impermeability of the building material by combining the measured length, the measured width, the measured height and the measured quality.
When the distance measuring assembly 3 is used, the number of the working pressure sensors 312 and the displacement sensors 311 is selected according to the size of the building material, when two surfaces of the building material, which are abutted against the pressure sensors 312, are not parallel, displacement data measured by the displacement sensors 311 at different parts are different, the different data are transmitted to a control system for analysis, and finally, data such as strength, water absorption rate, impermeability and the like of the building material are calculated.
The implementation principle of the automatic measuring instrument for the apparent density of the building material in the embodiment of the application is as follows: the building material is placed on a weighing platform 21 to be weighed and fixed, then a distance measuring assembly 3 is started, moving rods 31 on two sides of the weighing platform 21 move towards a direction close to the weighing platform 21, the moving rods 31 stop moving after a pressure sensor 312 is abutted to the building material, a displacement sensor 311 records displacement data to measure the length and the height of the building material, the weighing platform 21 is rotated to measure the width of the building material by the same method, the length, the width, the height and the quality of the building material are transmitted to a control system, and the control system calculates the data of the strength, the water absorption rate, the impermeability and the like of the building material.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An automatic measuring instrument for apparent density of building materials is connected with a control system, and is characterized in that: the device comprises a rack (1), a weighing assembly (2) and three groups of ranging assemblies (3), wherein the weighing assembly (2) comprises a weighing table (21), the weighing table (21) is connected to the rack (1), the two groups of ranging assemblies (3) are symmetrically distributed on two sides of the weighing table (21), and the other group of ranging assemblies (3) are positioned above the weighing table (21); range finding subassembly (3) are including carriage release lever (31), carriage release lever (31) and frame (1) are along being close to or keeping away from the direction sliding connection of weighing platform (21), one side that carriage release lever (31) are close to weighing platform (21) all is connected with a plurality of displacement sensor (311), the one end that carriage release lever (31) were kept away from in displacement sensor (311) all is connected with pressure sensor (312), one side that weighing platform (21) were kept away from in carriage release lever (31) all is connected with drive division (32), drive division (32) are used for driving carriage release lever (31) and slide towards the direction that is close to weighing platform (21), drive division (32), displacement sensor (311) and pressure sensor (312) all are connected with control system.
2. The automatic measuring instrument for apparent density of building material according to claim 1, characterized in that: drive division (32) are including connecting rod (321), lead screw (322), guide bar (323) and driving piece, connecting rod (321) are fixed to be set up on frame (1), lead screw (322) level sets up and perpendicular to connecting rod (321), lead screw (322) wear to establish in connecting rod (321) and with connecting rod (321) threaded connection, lead screw (322) are close to the one end and the carriage release lever (31) rotation of carriage release lever (31) and are connected, the other end and the driving piece of lead screw (322) are connected, the driving piece is connected with frame (1), be used for driving lead screw (322) and rotate, guide bar (323) level sets up and perpendicular to connecting rod (321), guide bar (323) wear to establish in connecting rod (321), guide bar (323) and connecting rod (321) sliding connection, and with carriage release lever (31) fixed connection.
3. The automatic measuring instrument for apparent density of building material according to claim 1, characterized in that: a first elastic piece is fixedly arranged between the displacement sensor (311) and the moving rod (31).
4. The automatic measuring instrument for apparent density of building material according to claim 1, characterized in that: the displacement sensors (311) are uniformly distributed along the length direction of the moving rod (31).
5. The automatic measuring instrument for apparent density of building material according to claim 1, characterized in that: the weighing platform is characterized in that a clamping part (22) is connected to the weighing platform (21), the clamping part (22) comprises a first limiting strip (222) and a second limiting strip (223) which are fixedly arranged on the weighing platform (21), a clamping strip (224) is arranged on one side, close to the first limiting strip (222), of the second limiting strip (223), and a second elastic part is fixedly arranged between the clamping strip (224) and the second limiting strip (223).
6. The automatic measuring instrument for apparent density of building material according to claim 5, characterized in that: the weighing machine is characterized in that a support plate (23) is fixedly connected to the rack (1), the weighing platform (21) is located at the top of the support plate (23) and is rotatably connected with the support plate (23), and the rotating axis of the weighing platform (21) is vertically arranged.
7. The automatic measuring instrument for apparent density of building material according to claim 6, characterized in that: side fixedly connected with latch segment (211) of weighing platform (21), through-hole (2111) have been seted up on latch segment (211), first locking hole (231) and second locking hole (232) have been seted up on backup pad (23), through-hole (2111) interpolation is equipped with fitting pin (212), fitting pin (212) bottom is inserted and is established in first locking hole (231) or second locking hole (232), when weighing platform (21) rotate the length direction of card strip (224) and the length direction of table (11) is perpendicular, through-hole (2111) are coaxial with first locking hole (231), when weighing platform (21) rotate the length direction of card strip (224) and the length direction of table (11) is parallel, through-hole (2111) are coaxial with second locking hole (232).
8. The automatic measuring instrument for apparent density of building material according to claim 2, characterized in that: the driving piece is a motor (324), and the motor (324) is connected with the rack (1) in a sliding mode along a direction close to or far away from the weighing platform (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121931246.2U CN215812235U (en) | 2021-08-17 | 2021-08-17 | Building material apparent density automatic measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121931246.2U CN215812235U (en) | 2021-08-17 | 2021-08-17 | Building material apparent density automatic measuring instrument |
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| CN215812235U true CN215812235U (en) | 2022-02-11 |
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| CN202121931246.2U Active CN215812235U (en) | 2021-08-17 | 2021-08-17 | Building material apparent density automatic measuring instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117147189A (en) * | 2022-12-14 | 2023-12-01 | 广东正昇检测技术有限公司 | Building external window comprehensive performance test equipment |
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2021
- 2021-08-17 CN CN202121931246.2U patent/CN215812235U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117147189A (en) * | 2022-12-14 | 2023-12-01 | 广东正昇检测技术有限公司 | Building external window comprehensive performance test equipment |
| CN117147189B (en) * | 2022-12-14 | 2024-05-28 | 广东正昇检测技术有限公司 | Building external window comprehensive performance test equipment |
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