CN111999216A - Hand-held type concrete penetration resistance appearance - Google Patents
Hand-held type concrete penetration resistance appearance Download PDFInfo
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- CN111999216A CN111999216A CN202010857877.8A CN202010857877A CN111999216A CN 111999216 A CN111999216 A CN 111999216A CN 202010857877 A CN202010857877 A CN 202010857877A CN 111999216 A CN111999216 A CN 111999216A
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- 230000035515 penetration Effects 0.000 title claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 18
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/12—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring rising or falling speed of the body; by measuring penetration of wedged gauges
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of concrete performance testing equipment, in particular to a handheld concrete penetration resistance tester, which comprises a base, wherein an adjusting seat and a fixed seat are sequentially arranged at the upper end of the base, an X-shaped connecting piece is arranged on the fixed seat and comprises a first connecting rod and a second connecting rod, one end of the first connecting rod and one end of the second connecting rod are respectively connected with the adjusting seat in a sliding manner, the other end of the first connecting rod and the other end of the second connecting rod are driven by a driving device and perform linear opposite movement on the adjusting seat, a clamping mechanism is arranged in the adjusting seat and comprises a left pressing piece and a right pressing piece, and the left pressing piece and the right pressing piece are both fixedly connected with a moving block. The screw nut of the first screw pair and the screw nut of the second screw pair move horizontally in opposite directions, so that the first connecting rod and the second connecting rod are driven to be in an open or closed state, the height of the fixing seat can be effectively adjusted, and the fixing seat is suitable for test barrels with different heights.
Description
Technical Field
The invention relates to the technical field of concrete performance testing equipment, in particular to a handheld concrete penetration resistance meter.
Background
Concrete set time is an extremely important parameter of concrete, and it is extremely common to determine concrete set time, whether in scientific research or in engineering practice.
The utility model discloses a chinese utility model patent with application number CN201921970823.1, comprises a workbench, be fixed with the support on the workstation, be fixed with the support arm on the support, the support arm is kept away from support one end and is fixed with the fixed head, detachable is equipped with the injection pole on the fixed head, be equipped with receiving device on the support arm, receiving device includes the connecting rod, the connecting rod can slide along connecting rod length direction and wear to locate the support arm middle part, and the connecting rod can support arm swivelling joint relatively, connecting rod lower extreme fixed connection receiving rod, receiving rod keeps away from connecting rod one end and is equipped with the joint head, reset spring has been cup jointed on the connecting rod and has been located between handle and the support arm, the fixed separation blade that is provided with on the connecting rod, reset spring upper end and separation blade lower extreme support tightly. The device aims at solving the problem of inconvenient operation when the penetration rod is vertically replaced. However, in the actual operation process, the testing barrel is always stressed, and the device is not provided with a clamping mechanism of the testing barrel, so that the deviation of the testing barrel can be caused, and the testing result is influenced; and the fixture under the prior art can not adapt to the test bucket of highly different.
In view of this, we propose a hand-held concrete penetration resistance meter.
Disclosure of Invention
The present invention is directed to a hand-held concrete penetration resistance tester, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hand-held type concrete penetration resistance appearance, includes the base, the base upper end has set gradually regulation seat and fixing base, the symmetry is provided with two sets of X-shaped connecting pieces on the fixing base, and X-shaped connecting piece includes first connecting rod of mutual articulated and second connecting rod, first connecting rod and second connecting rod both ends are all rotated and are connected with articulated seat, and the one end of first connecting rod and second connecting rod is respectively through articulated seat and regulation seat sliding connection, and the articulated seat of the first connecting rod and the second connecting rod other end passes through the drive arrangement drive and carries out sharp relative motion on adjusting the seat, be provided with fixture in the regulation seat, fixture includes left preforming and right preforming, left preforming and right preforming mirror symmetry, and the equal fixed connection movable block of left preforming and right preforming.
Preferably, the inside cavity that is provided with of regulation seat, be provided with drive arrangement in the cavity, drive arrangement includes motor, first lead screw pair and second lead screw pair, the output shaft of motor passes through shaft coupling and the vice lead screw fixed connection of second lead screw, the lead screw of first lead screw pair and the lead screw coaxial welding of second lead screw pair to the lead screw of first lead screw pair and the vice lead screw thread opposite direction of second lead screw, the articulated seat of first connecting rod bottom stretches into the cavity through the stand and the vice screw-nut fixed connection of second lead screw, and the articulated seat of second connecting rod bottom stretches into the cavity through the stand and the vice screw-nut fixed connection of first lead screw pair.
Preferably, the inside logical groove that holds left preforming and right preforming of seting up of fixing base, the activity groove has been seted up on the right side that leads to the groove, and the lateral wall both ends in activity groove are all fixed and are provided with magnetite A, and the one end that two sets of movable blocks deviate from mutually all is fixed and is provided with magnetite B with magnetite A synonym, and movable block fixedly connected with bracing piece.
Preferably, the right side of the movable groove is provided with a circular groove, a rotary table is rotatably mounted in the circular groove, the rotary table is fixedly connected with a driving shaft, the driving shaft extends out of the circular groove and is fixedly connected with a handle, a reinforcing cylinder is sleeved on the outer side of the driving shaft, the reinforcing cylinder is fixedly arranged on the fixed seat, one end of the rotary table, close to the movable block, is provided with two groups of arc-shaped grooves which are centrosymmetric, and the supporting rod is slidably mounted in the arc-shaped grooves.
Preferably, the end, far away from the carousel, of the left pressing sheet and the right pressing sheet is provided with a guide block in a protruding manner, the guide block is fixedly connected with a universal ball, and a sliding groove in rolling fit with the universal ball is formed in the side wall of the fixing base.
Preferably, rectangular long grooves are formed in two sides of the lower end face of the fixed seat, springs are arranged in the rectangular long grooves, and the hinge seats connected with the upper ends of the first connecting rod and the second connecting rod extend into the rectangular long grooves and are fixedly connected with the springs.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the driving shaft is rotated by holding the handle to drive the turntable to rotate, and the supporting rod is in sliding fit with the arc-shaped groove, so that the moving block overcomes the repulsion action between the magnets A and B with the same name, and the left pressing piece and the right pressing piece are driven to move towards the two sides in a deviating manner, thereby being convenient for placing or taking the testing barrel, and saving time and labor.
2. According to the invention, through the repulsion action between the magnets A and B with the same name, the left pressing piece and the right pressing piece can be always in a close state without being subjected to external force, the testing barrel can be stably clamped, and the situation that the deviation of the testing barrel occurs to influence the testing result is avoided.
3. The horizontal screw rod nut of the first screw rod pair and the horizontal screw rod nut of the second screw rod pair move horizontally in opposite directions, so that the first connecting rod and the second connecting rod are driven to be in an open or closed state, the height of the fixing seat can be effectively adjusted, and the horizontal screw rod nut of the first screw rod pair and the horizontal screw rod nut of the second screw rod pair are suitable for test barrels with different heights.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a schematic sectional view taken along line a-a of FIG. 1;
fig. 3 is a side view of the turntable of the present invention.
In the figure: the base 1, adjust seat 2, fixing base 3, left preforming 4, right preforming 5, handle 6, first connecting rod 7, second connecting rod 8, reinforce a section of thick bamboo 9, spring 10, articulated seat 11, first screw pair 12, second screw pair 13, motor 14, carousel 15, drive shaft 16, movable block 17, magnetite A18, magnetite B19, bracing piece 20, universal ball 21, arc 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a hand-held type concrete penetration resistance appearance, the on-line screen storage device comprises a base 1, 1 upper end of base has set gradually regulation seat 2 and fixing base 3, the symmetry is provided with two sets of X shape connecting pieces on the fixing base 3, X shape connecting piece includes first connecting rod 7 and the second connecting rod 8 of mutual articulated, first connecting rod 7 and 8 both ends of second connecting rod are all rotated and are connected with articulated seat 11, the one end of first connecting rod 7 and second connecting rod 8 is respectively through articulated seat 11 and 2 sliding connection of regulation seat, articulated seat 11 of the first connecting rod 7 and the 8 other ends of second connecting rod pass through the drive arrangement drive and carry out sharp phase motion on adjusting seat 2, be provided with fixture in the regulation seat 2, fixture includes left preforming 4 and right preforming 5, left preforming 4 and 5 mirror image symmetry, and the equal fixed connection movable block 17 of left preforming 4 and right preforming 5.
As shown in fig. 1, a cavity is formed inside the adjusting seat 2, a driving device is arranged in the cavity, the driving device includes a motor 14, a first screw pair 12 and a second screw pair 13, an output shaft of the motor 14 is fixedly connected with a screw of the second screw pair 13 through a coupler, a screw of the first screw pair 12 is coaxially welded with a screw of the second screw pair 13, the screw of the first screw pair 12 is opposite to the screw of the second screw pair 13 in direction, a hinge seat 11 at the bottom of the first connecting rod 7 extends into the cavity through a stand column and is fixedly connected with a screw nut of the second screw pair 13, and a hinge seat 11 at the bottom of the second connecting rod 8 extends into the cavity through a stand column and is fixedly connected with a screw nut of the first screw pair 12. During the use, start motor 14, motor 14 drives first lead screw pair 12 and the motion of second lead screw pair 13, because the lead screw of first lead screw pair 12 and the lead screw thread opposite direction of second lead screw pair 13, the screw-nut of first lead screw pair 12 and the screw-nut of second lead screw pair 13 carry out the horizontal motion in opposite directions to drive first connecting rod 7 and second connecting rod 8 and present open or closed state, thereby can effectively adjust the height of fixing base 3, with this adaptation not test bucket of co-altitude.
As shown in fig. 2, the fixing base 3 is provided with a through groove for accommodating the left pressing piece 4 and the right pressing piece 5, the right side of the through groove is provided with a movable groove, two ends of the side wall of the movable groove are both fixedly provided with magnets a 18, one end of each of the two sets of moving blocks 17 deviating from is both fixedly provided with a magnet B19 having the same name as the magnet a 18, and the moving blocks 17 are fixedly connected with a support rod 20. Through the repulsion effect between utilizing magnetite A18 and the magnetite B19 of the same name, can be under the circumstances that does not receive external force for left preforming 4 and right preforming 5 are in the state of drawing close together all the time, can carry out the centre gripping steadily with the test bucket, avoid it to take place to deviate, influence the condition emergence of test result.
As shown in fig. 2 and 3, a circular groove is formed in the right side of the movable groove, a rotary table 15 is rotatably mounted in the circular groove, the rotary table 15 is fixedly connected with a driving shaft 16, the driving shaft 16 extends out of the circular groove and is fixedly connected with a handle 6, a reinforcing cylinder 9 is sleeved outside the driving shaft 16, the reinforcing cylinder 9 is fixedly arranged on the fixed base 3, two sets of arc-shaped grooves 22 which are centrosymmetric are formed in one end, close to the moving block 17, of the rotary table 15, the arc-shaped grooves 22 are of a C-shaped structure, and the supporting rod 20 is slidably mounted in. Rotate drive shaft 16 through handheld handle 6, make it drive carousel 15 rotate, because bracing piece 20 and arc wall 22 sliding fit to make the movable block 17 overcome the repulsion effect between the magnetite A18 of same name and the magnetite B19, and drive left preforming 4 and right preforming 5 in proper order and deviate from the motion to both sides, thereby be convenient for place or take labour saving and time saving to the test bucket.
As shown in fig. 2, the ends of the left pressing plate 4 and the right pressing plate 5, which are far away from the turntable 15, are provided with guide blocks in a protruding manner, the guide blocks are fixedly connected with the universal ball 21, and the side wall of the fixing base 3 is provided with a sliding groove in rolling fit with the universal ball 21. Utilize universal ball 21 as left preforming 4 and right preforming 5 and fixing base 3 contact, area of contact is little, and frictional resistance is little.
As shown in fig. 1, rectangular long grooves are formed in both sides of the lower end surface of the fixed seat 3, springs 10 are arranged in the rectangular long grooves, and a hinge seat 11 connected to the upper ends of the first connecting rod 7 and the second connecting rod 8 extends into the rectangular long grooves and is fixedly connected with the springs 10. Through setting up spring 10, can form the pretightning force between first connecting rod 7 and second connecting rod 8.
The working principle is as follows: in practical process, firstly, the motor 14 is started, the motor 14 drives the first lead screw pair 12 and the second lead screw pair 13 to move, because the screw thread direction of the lead screw of the first lead screw pair 12 is opposite to that of the lead screw of the second lead screw pair 13, the lead screw nut of the first lead screw pair 12 and the lead screw nut of the second lead screw pair 13 linearly move in opposite directions, so as to drive the first connecting rod 7 and the second connecting rod 8 to be in an open or closed state, so as to adjust the height of the fixing seat 3 to a height suitable for the testing barrel, then the driving shaft 16 is rotated by the hand-held handle 6, so as to drive the turntable 15 to rotate, because the supporting rod 20 is in sliding fit with the arc-shaped groove 22, the moving block 17 overcomes the repulsion effect between the magnets A18 and B19 of the same name, and drives the left pressing sheet 4 and the right pressing sheet 5 to deviate towards two sides in sequence, so as to place or, time and labor are saved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hand-held type concrete penetration resistance appearance, includes base (1), its characterized in that: the adjustable base is characterized in that an adjusting seat (2) and a fixing seat (3) are sequentially arranged at the upper end of the base (1), two groups of X-shaped connecting pieces are symmetrically arranged on the fixing seat (3) and comprise a first connecting rod (7) and a second connecting rod (8) which are hinged with each other, two ends of the first connecting rod (7) and two ends of the second connecting rod (8) are rotatably connected with hinged seats (11), one ends of the first connecting rod (7) and the second connecting rod (8) are respectively connected with the adjusting seat (2) in a sliding manner through the hinged seats (11), the hinged seats (11) at the other ends of the first connecting rod (7) and the second connecting rod (8) are driven by a driving device and perform linear opposite movement on the adjusting seat (2), a clamping mechanism is arranged in the adjusting seat (2) and comprises a left pressing piece (4) and a right pressing piece (5), the left pressing piece (4) and the right pressing piece (5) are in, and the left pressing piece (4) and the right pressing piece (5) are both fixedly connected with a moving block (17).
2. The hand-held concrete penetration resistance gauge according to claim 1, wherein: the adjusting device is characterized in that a cavity is formed in the adjusting seat (2), a driving device is arranged in the cavity, the driving device comprises a motor (14), a first lead screw pair (12) and a second lead screw pair (13), an output shaft of the motor (14) is fixedly connected with a lead screw of the second lead screw pair (13) through a coupler, a lead screw of the first lead screw pair (12) and a lead screw of the second lead screw pair (13) are coaxially welded, the thread directions of the lead screw of the first lead screw pair (12) and the lead screw of the second lead screw pair (13) are opposite, a hinged seat (11) at the bottom of a first connecting rod (7) stretches into the cavity through an upright post and is fixedly connected with a lead screw nut of the second lead screw pair (13), and a hinged seat (11) at the bottom of a second connecting rod (8) stretches into the cavity through an upright post and is fixedly connected with a lead screw nut.
3. The hand-held concrete penetration resistance gauge according to claim 2, wherein: the fixing base (3) is internally provided with a through groove for accommodating the left pressing sheet (4) and the right pressing sheet (5), the right side of the through groove is provided with a movable groove, two ends of the side wall of the movable groove are respectively and fixedly provided with a magnet A (18), one end of each of two sets of moving blocks (17) which deviates from each other is respectively and fixedly provided with a magnet B (19) with the same name as the magnet A (18), and the moving blocks (17) are fixedly connected with a supporting rod (20).
4. The hand-held concrete penetration resistance gauge according to claim 3, wherein: the right side of the movable groove is provided with a circular groove, a rotary table (15) is installed in the circular groove in a rotating mode, the rotary table (15) is fixedly connected with a driving shaft (16), the driving shaft (16) extends out of the circular groove and is fixedly connected with a handle (6), a reinforcing cylinder (9) is sleeved on the outer side of the driving shaft (16), the reinforcing cylinder (9) is fixedly arranged on the fixing base (3), two groups of arc-shaped grooves (22) which are centrosymmetric are formed in one end, close to the moving block (17), of the rotary table (15), and the supporting rod (20) is slidably installed in the arc-shaped grooves (22).
5. The hand-held concrete penetration resistance gauge according to claim 4, wherein: the one end that carousel (15) were kept away from in left preforming (4) and right preforming (5) is provided with the guide block to the outstanding guide block that is provided with, guide block fixed connection universal ball (21), set up on fixing base (3) lateral wall with universal ball (21) roll complex spout.
6. The hand-held concrete penetration resistance gauge according to claim 1, wherein: rectangular long grooves are formed in two sides of the lower end face of the fixed seat (3), springs (10) are arranged in the rectangular long grooves, and hinged seats (11) connected with the upper ends of the first connecting rod (7) and the second connecting rod (8) extend into the rectangular long grooves and are fixedly connected with the springs (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857877.8A CN111999216A (en) | 2020-08-24 | 2020-08-24 | Hand-held type concrete penetration resistance appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857877.8A CN111999216A (en) | 2020-08-24 | 2020-08-24 | Hand-held type concrete penetration resistance appearance |
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| Publication Number | Publication Date |
|---|---|
| CN111999216A true CN111999216A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010857877.8A Pending CN111999216A (en) | 2020-08-24 | 2020-08-24 | Hand-held type concrete penetration resistance appearance |
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| Country | Link |
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| CN (1) | CN111999216A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112429064A (en) * | 2020-12-07 | 2021-03-02 | 滁州蓝天特种玻璃有限公司 | Toughened glass transport vehicle compartment |
| CN113340734A (en) * | 2021-06-11 | 2021-09-03 | 湖北中烟工业有限责任公司 | Tobacco leaf penetrating strength's survey device |
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| KR20080101620A (en) * | 2007-05-18 | 2008-11-21 | 재단법인 한국건자재시험연구원 | Automatic measurement apparatus of concrete mixture setting time |
| CN201288926Y (en) * | 2008-10-06 | 2009-08-12 | 赵立刚 | Display height adjustment rack |
| CN104538345A (en) * | 2014-12-31 | 2015-04-22 | 北京七星华创电子股份有限公司 | Disk clamping and rotating device |
| CN110680062A (en) * | 2018-07-26 | 2020-01-14 | 李建欣 | Sun umbrella for sun shading and use method thereof |
| CN110865179A (en) * | 2019-12-18 | 2020-03-06 | 阜阳市路兴公路工程监理有限公司 | Concrete penetration resistance appearance |
| CN210720059U (en) * | 2019-09-12 | 2020-06-09 | 佛山市华轩新材料有限公司 | Concrete penetration resistance instrument for testing water reducing agent |
| CN210803196U (en) * | 2019-10-17 | 2020-06-19 | 杭州正方实业集团有限公司 | Concrete passes through formula resistance appearance |
| CN210997205U (en) * | 2019-03-30 | 2020-07-14 | 深圳市民升激光科技有限公司 | Positioning and clamping device for laser welding |
-
2020
- 2020-08-24 CN CN202010857877.8A patent/CN111999216A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080101620A (en) * | 2007-05-18 | 2008-11-21 | 재단법인 한국건자재시험연구원 | Automatic measurement apparatus of concrete mixture setting time |
| CN201288926Y (en) * | 2008-10-06 | 2009-08-12 | 赵立刚 | Display height adjustment rack |
| CN104538345A (en) * | 2014-12-31 | 2015-04-22 | 北京七星华创电子股份有限公司 | Disk clamping and rotating device |
| CN110680062A (en) * | 2018-07-26 | 2020-01-14 | 李建欣 | Sun umbrella for sun shading and use method thereof |
| CN210997205U (en) * | 2019-03-30 | 2020-07-14 | 深圳市民升激光科技有限公司 | Positioning and clamping device for laser welding |
| CN210720059U (en) * | 2019-09-12 | 2020-06-09 | 佛山市华轩新材料有限公司 | Concrete penetration resistance instrument for testing water reducing agent |
| CN210803196U (en) * | 2019-10-17 | 2020-06-19 | 杭州正方实业集团有限公司 | Concrete passes through formula resistance appearance |
| CN110865179A (en) * | 2019-12-18 | 2020-03-06 | 阜阳市路兴公路工程监理有限公司 | Concrete penetration resistance appearance |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112429064A (en) * | 2020-12-07 | 2021-03-02 | 滁州蓝天特种玻璃有限公司 | Toughened glass transport vehicle compartment |
| CN112429064B (en) * | 2020-12-07 | 2021-12-21 | 滁州蓝天特种玻璃有限公司 | Toughened glass transport vehicle compartment |
| CN113340734A (en) * | 2021-06-11 | 2021-09-03 | 湖北中烟工业有限责任公司 | Tobacco leaf penetrating strength's survey device |
| CN113340734B (en) * | 2021-06-11 | 2022-05-17 | 湖北中烟工业有限责任公司 | Tobacco leaf penetrating strength's survey device |
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