CN103398900A - Lever type tensile test rack - Google Patents
Lever type tensile test rack Download PDFInfo
- Publication number
- CN103398900A CN103398900A CN2013103177263A CN201310317726A CN103398900A CN 103398900 A CN103398900 A CN 103398900A CN 2013103177263 A CN2013103177263 A CN 2013103177263A CN 201310317726 A CN201310317726 A CN 201310317726A CN 103398900 A CN103398900 A CN 103398900A
- Authority
- CN
- China
- Prior art keywords
- hole
- tensile test
- pressure transducer
- pin
- direct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a lever type tensile test rack. The lever type tensile test rack is in a frame-shaped structure composed of a stand column, a top beam, a bottom beam, an upper support, a lower support, a jack, a direct-reading type hydraulic sensor and the like, wherein the stand column is located on one side of the structure; the jack and the direct-reading type hydraulic sensor are located on the other side of the structure. A plurality of pin holes with equal center heights are formed in the middle of the top beam and the middle of the bottom beam respectively, and are used for fixing test pieces with different tension resistances. When the lever type tensile test rack is used for detecting, the jack is operated to push the top beam so that a material to be detected is tensioned and the tensile numerical value of the material to be detected is obtained by the direct-reading type hydraulic sensor placed below the jack. The lever type tensile test rack provided by the invention is simple in structure and convenient to mount; the testing precision meets the requirements of a construction site; manpower and material resources can be saved; the lever type tensile test rack is good for field management.
Description
Technical field
The present invention relates to a kind of device for testing tensile force, the especially a kind of tensile test stand that construction site uses, a kind of lever type tensile test stand specifically of being applicable to.
Background technology
At present, in the realm of building construction, when testing the resistance to tension of building materials, or the specified resistance to tension of some construction tool is carried out timing signal, be all these materials or instrument to be delivered to Building Material Laboratory test, do so both spended times, uneconomical again.Simple if any a kind of fitting operation, can test at the construction field (site) the resistance to tension of medium and small section material or demarcate construction appliance specified resistance to tension, need not to be fixed in the small portable tensile test equipment on ground, to greatly increase work efficiency, reduce the operating technique handling cost.
Summary of the invention
The purpose of this invention is to provide a kind of easy for installationly, simple to operate, can test at the construction field (site) the resistance to tension of small bore material or demarcate the resistance to tension of construction appliance, need not again to be fixed in the small portable device for testing tensile force on ground.
Technical scheme of the present invention is: a kind of lever tensile test stand is characterized in that it mainly is comprised of column, back timber, bottom girder, upper bracket, undersetting, lifting jack and direct-reading pressure transducer; Column lower end is vertically fixed on an end of bottom girder, and an end of back timber and the upper end of column are hinged; Between back timber and bottom girder, with respect to the opposite side of column, be disposed with lifting jack and direct-reading hydraulic pressure transducer from top to bottom; The piston rod of lifting jack contacts the upper bracket hinged with back timber; The base of lifting jack is placed on the pressure-bearing surface of direct-reading hydraulic pressure transducer; The direct-reading hydraulic pressure transducer is arranged on the undersetting hinged with bottom girder; The two ends of back timber are provided with the connection pin-and-hole, and bottom girder is provided with the connection pin-and-hole with respect to the other end of column stiff end; The centre of back timber and bottom girder is provided with some test pin-and-holes in proportion in groups.
Described each pin-and-hole of being located on back timber and bottom girder all is positioned on the neutral axis that is subjected to curved cross section, and inside and outside both sides are equipped with stiffening plate.
Also contain the upper end otic placode on described upper bracket, bearing pin passes the upper end otic placode, and upper bracket and back timber is hinged, and it is placed in the middle to adopt pad to adjust the upper end otic placode.
Also contain the lower end otic placode on described undersetting, bearing pin passes the lower end otic placode, and undersetting and bottom girder is hinged.
Described direct-reading pressure transducer, include cylindrical oil cylinder, be inlaid in in-oil cylinder piston and hydraulic pressure transducer; Wherein, the end face of piston is provided with center positioning hole, is embedded with 2 ~ 3 O RunddichtringOs on side face; The bottom level direction of oil cylinder is provided with the oilhole that is interlinked to the outside in 2; There is hydraulic pressure transducer and the plugging device that a band shows to distinguish spinning in these 2 oilhole outer ends, and compress the sealing gasket with mesopore on oilhole.The base of oil cylinder is provided with 1 group of vertical through hole, by bolt, with the undersetting end face, is connected.
Described plugging device comprises that oil extraction bolt and ecto-entad set gradually jackscrew, spring and the steel ball in hole therein.
The external diameter of described piston-top surface end is greater than the oil cylinder external diameter, and is provided with the ring-shaped groove that contains the oil cylinder outer wall; Also be provided with 2 tapped through holes perpendicular to the outer end face of piston in this groove, and be provided with bolt in this tapped through hole.
Described jack base is provided with pilot hole, and the centring pin two ends embed respectively in the pilot hole of this pilot hole and pressure transducer piston-top surface.
The center of the bottom surface of described upper bracket have one can with the blind hole of lifting jack end face tabling, the piston-top surface of lifting jack embeds in above-mentioned blind hole.
Described test block is connected to the test pin-and-hole by bearing pin, and in the test pin-and-hole, back-up ring is installed simultaneously, adjusts test block placed in the middle.
Beneficial effect of the present invention: simple in structure, easy for installation, do not need to fix on the ground.Simultaneously, after the direct-reading hydraulic pressure transducer was demarcated, its precision can meet the on-the-spot test requirement.Owing to being provided with in proportion some groups of test pin-and-holes on back timber and bottom girder, by using lever principle, can obtain the pulling force of different sizes, be adapted at the resistance to tension of working-yard test different cross-sectional material, or demarcate the specified pulling force of small-sized construction appliance, be beneficial to the technical management of working-yard, and can save human and material resources.
Description of drawings
Fig. 1 is the assembling schematic diagram of the present invention during for detection of building materials.
Fig. 2 is the A-A broken section structural representation of Fig. 1 of the present invention.
Fig. 3 is the B-B broken section structural representation of Fig. 1 of the present invention.
The C-C broken section structural representation of Fig. 4 figure Fig. 1 of the present invention.
Fig. 5 is the schematic diagram of each pin-and-hole on back timber of the present invention.
Fig. 6 is the assembling schematic diagram of direct-reading pressure transducer.
Fig. 7 is the D-D broken section structural representation of direct-reading pressure transducer Fig. 7.
Fig. 8 is the E-E broken section structural representation in direct-reading pressure transducer Fig. 8.
Fig. 9 is the local structure for amplifying schematic diagram of the I in direct-reading pressure transducer Fig. 7.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of lever tensile test stand, mainly by column 1, back timber 2, bearing pin 3, upper bracket 4, lifting jack 5, direct-reading pressure transducer 6, undersetting 7, bottom girder 8, back-up ring 10, packing ring 11 etc., formed, back timber 2 is hinged on the upper end of column 1 by bearing pin 3, the lower end of column 1 is bolted on an end of bottom girder 8; As shown in Figure 2 and Figure 5, be provided with in groups in proportion some test pin-and-hole 2-2 and 8-2 on back timber 2 and bottom girder 8.On back timber 2, bottom girder 8, each pin-and-hole all is arranged on beam and experiences on the neutral axis in curved cross section, and the inside and outside both sides of each pin-and-hole are equipped with stiffening plate 2-4, to make up the intensity in back timber 2, bottom girder 8 perforate cross sections.Test block 9 two ends are hinged on respectively on the test pin-and-hole of back timber 2 and bottom girder 8 correspondences by bearing pin 3, and in the test pin-and-hole, back-up ring 10 are installed, and adjust otic placode 9-1 placed in the middle.As shown in Figure 3, upper bracket 4 upper end otic placode 4-1 are hinged by bearing pin 3 and back timber 2, and it is placed in the middle to adopt pad 11 to adjust upper end otic placode 4-1.As shown in Figure 4, the base plate center of upper bracket 4 is provided with blind hole, with lifting jack 5 piston rod end face tablings.Lifting jack 5 is located on the end face of direct-reading hydraulic pressure transducer 6 between two parties, simultaneously, and in the center pit of centring pin 12 embedding lifting jack 5 bottom surfaces and the center pit of direct-reading pressure transducer 6 end faces.The base of direct-reading pressure transducer 6 is connected with undersetting 7 end faces by bolt, undersetting 7 lower end otic placode 7-1 are hinged on the connection pin-and-hole 8-1 of bottom girder 8 by bearing pin 3, thereby upper bracket 4, lifting jack 5, direct-reading hydraulic pressure transducer 6, undersetting 7 center lines are overlapped, to guarantee to survey, carry accurately.
Described direct-reading pressure tester, as shown in Figure 6, include cylindrical oil cylinder 6-6 and piston 6-4.Wherein piston 6-4 embeds in oil cylinder 6-6, and the oil pocket with the airtight pressure-bearing of oil cylinder 6-6 formation, be full of hydraulic oil in oil pocket.The bottom level direction of oil cylinder 6-6 is provided with the oilhole that is interlinked to the outside in 2, but the outer end of an oilhole is equipped with the hydraulic pressure transducer 6-7 of instant playback therein, and compresses the sealing gasket 6-2 on oilhole.When outside piston 6-4, end face was subjected to compressive load, hydraulic oil produced corresponding pressure according to magnitude of load, and by direct-reading hydraulic pressure transducer 6-7, showed instant load.In another oilhole of oil cylinder 6-6 bottom, plugging device is installed, and compresses the 6-2 of the sealing gasket with mesopore on oilhole.The external diameter of the end face end of described piston 6-4 is greater than the external diameter of oil cylinder 6-6, and is provided with the ring-shaped groove 6-4-1 that contains oil cylinder 6-6 outer wall.Also be provided with 2 tapped through hole 6-4-2 perpendicular to the outer end face of piston 6-4 in this groove 6-4-1, and in this tapped through hole 6-4-2 inward turning, be equipped with bolt 6-3.When screwing in the bolt 6-3 of sufficient length,, by thrusting action, can extract piston 6-4, be convenient to maintenance and maintenance.On piston 6-4 and side face that oil cylinder 6-6 matches, 2 ~ 3 O RunddichtringO 6-5 are installed according to actual needs, guarantee the sealing in piston 6-4 and oil cylinder 6-6 mating surface gap.The center of described piston-top surface is provided with center positioning hole 6-8,, by register pin, with the pilot hole of the bottom surface of lifting jack, positions.
As shown in Figure 7 and Figure 8, one group of vertical through hole 6-6-2 is arranged on the base 6-6-1 of oil cylinder 6-6, be bolted on undersetting.
As shown in Figure 9, described plugging device sets gradually jackscrew 6-1-1, spring 6-1-2 and steel ball 6-1-3 in hole therein by oil extraction bolt 1 and ecto-entad.Tighten oil extraction bolt 6-1, press seal pad 6-2, and by regulating jackscrew 6-1-1, holddown spring 6-1-2 and steel ball 6-1-3, make steel ball 6-3 seal the through hole of sealing gasket 6-2 successively, and then seal the oilhole mouth.When the load that applies on this tester surpasses the rated load that can bear; hydraulic oil pressure in cavity increases; by steel ball 6-1-3 pushing spring 6-1-2; make between steel ball 6-1-3 and oilhole mouth and produce gap; hydraulic oil from gap and the mesopore of jackscrew 6-1-1 discharge decompression, with protection hydraulic pressure transducer 6-7 and parts such as sealing gasket 6-2, O-ring seals 6-5 everywhere.
During test,, according to tensile strength and the cross-sectional sizes of test specimen, select to be arranged on corresponding test pin-and-hole 2-2 and 8-2, as shown in Figure 5.The test specimen that testing section is large, resistance to tension is strong, should select lever ratio=a:b
iLarger pin-and-hole.During test, the piston rod of manual operation lifting jack 5 stretches out until carry, by selecting the direct-reading hydraulic pressure transducer 6 of suitable cylinder diameter, but from the numerical value of its Displaying Meter dial plate or digital screen direct-reading test specimen 9 bearing tensions, or the specified pulling force numerical value of the construction appliance of being demarcated.During test, the load that the load that lifting jack applies and test specimen 9 bear can realize homeostasis on present gantries, the internal force that produces is born by each member, therefore present gantries can be placed on test specimen place or construction location as required, need not fix on the ground, and can arbitrarily dismantle, portable transfer using area, extremely easy to use.
The part that the present invention does not relate to all prior art that maybe can adopt same as the prior art is realized.
Claims (10)
1. a lever tensile test stand, is characterized in that it mainly is comprised of column (1), back timber (2), bottom girder (8), upper bracket (4), undersetting (7), lifting jack (5) and direct-reading pressure transducer (6); Column (1) lower end is vertically fixed on an end of bottom girder (8), and the upper end of an end of back timber (2) and column (1) is hinged; Between back timber and bottom girder, with respect to the opposite side of column, be disposed with lifting jack (5) and direct-reading hydraulic pressure transducer (6) from top to bottom; The piston rod of lifting jack (5) contacts the upper bracket (4) hinged with back timber (2); The base of lifting jack is placed on the pressure-bearing surface of direct-reading hydraulic pressure transducer (6); Direct-reading hydraulic pressure transducer (6) is arranged on the undersetting (7) hinged with bottom girder (8); The two ends of back timber (2) are provided with and connect pin-and-hole (2-1,2-3), and bottom girder (8) is provided with connection pin-and-hole (8-1) with respect to the other end of column (1) stiff end; The centre of back timber (2) and bottom girder (8) is provided with some test pin-and-holes (2-2,8-2) in proportion in groups.
2. lever tensile test stand according to claim 1, it is characterized in that above-mentioned each pin-and-hole of being located at back timber (2) and bottom girder (8) all is positioned on the neutral axis that is subjected to curved cross section, and inside and outside both sides are equipped with stiffening plate (2-4).
3. lever tensile test stand according to claim 1, it is characterized in that on upper bracket (4) also containing upper end otic placode (4-1), bearing pin (3) passes upper end otic placode (4-1), and upper bracket and back timber (2) is hinged, and it is placed in the middle to adopt pad (11) to adjust upper end otic placode (4-1).
4. lever tensile test stand according to claim 4, is characterized in that on described undersetting (7) also containing lower end otic placode (7-1), and bearing pin (3) passes lower end otic placode (7-1), and undersetting (7) and bottom girder (8) is hinged.
5. lever tensile test stand according to claim 1, is characterized in that described direct-reading pressure transducer, includes cylindrical oil cylinder (6-6), is inlaid in in-oil cylinder piston (6-4) and hydraulic pressure transducer; Wherein, the end face of piston (6-4) is provided with center positioning hole, is embedded with 2 ~ 3 O RunddichtringOs (6-5) on side face; The bottom level direction of oil cylinder (6-6) is provided with the oilhole that is interlinked to the outside in 2; There is hydraulic pressure transducer (6-7) and the plugging device that a band shows to distinguish spinning in these 2 oilhole outer ends, and compress the sealing gasket with mesopore (6-2) on oilhole; The base of oil cylinder (6-6) is provided with 1 group of vertical through hole (6-6-2), by bolt, with undersetting (6-7) end face, is connected.
6. lever tensile test stand according to claim 5, is characterized in that described plugging device comprises that oil extraction bolt (6-1) and ecto-entad set gradually jackscrew (6-1-1), spring (6-1-2) and the steel ball (6-1-3) in hole therein.
7. lever tensile test stand according to claim 5, is characterized in that the external diameter of described piston (6-4) end face end greater than oil cylinder (6-6) external diameter, and be provided with the ring-shaped groove (6-4-1) that contains the oil cylinder outer wall; Also be provided with 2 tapped through holes (6-4-2) perpendicular to the outer end face of piston in this groove (6-4-1), and be provided with bolt (6-3) in this tapped through hole (6-4-2).
8. lever tensile test stand according to claim 1, is characterized in that described lifting jack (5) base is provided with pilot hole, and centring pin (12) two ends embed respectively in the pilot hole of this pilot hole and pressure transducer piston-top surface.
9. according to claim 1 or 3 described lever tensile test stands, the center that it is characterized in that the bottom surface of described upper bracket (4) have one can with the blind hole of lifting jack (5) end face tabling, the piston-top surface of lifting jack (5) embeds in above-mentioned blind hole.
10. lever tensile test stand according to claim 1, is characterized in that test block (9) is connected to test pin-and-hole (2-2,8-2) by bearing pin (3), and simultaneously back-up ring be installed in test pin-and-hole (2-2,8-2), adjusts test block (9) between two parties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103177263A CN103398900A (en) | 2013-07-26 | 2013-07-26 | Lever type tensile test rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103177263A CN103398900A (en) | 2013-07-26 | 2013-07-26 | Lever type tensile test rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103398900A true CN103398900A (en) | 2013-11-20 |
Family
ID=49562568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103177263A Pending CN103398900A (en) | 2013-07-26 | 2013-07-26 | Lever type tensile test rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103398900A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374643A (en) * | 2014-11-07 | 2015-02-25 | 三一重型装备有限公司 | System for detecting tensile property |
| CN105241648A (en) * | 2015-10-23 | 2016-01-13 | 长安大学 | Loading device simulating loess tunnel lock foot anchor pipe end stress and use method thereof |
| CN106383051A (en) * | 2016-11-16 | 2017-02-08 | 中车太原机车车辆有限公司 | Tension testing device |
| CN106442148A (en) * | 2016-08-24 | 2017-02-22 | 浙江昂星链条有限公司 | Fragility detector used for chain pin shaft |
| CN106442859A (en) * | 2016-10-27 | 2017-02-22 | 沈阳建筑大学 | Loading device for fire resistance test of slim component |
| CN110133750A (en) * | 2019-05-21 | 2019-08-16 | 泉州芸台科技有限公司 | A kind of gravity sensor device for fast detecting and detection method |
| CN110702442A (en) * | 2019-10-18 | 2020-01-17 | 山东省科学院海洋仪器仪表研究所 | Device and method for measuring tensile and pressure resistance of underwater instrument |
| CN111044271A (en) * | 2019-08-02 | 2020-04-21 | 中国海洋石油集团公司 | Hydraulic connector composite load test bed device |
| CN117250094A (en) * | 2023-09-19 | 2023-12-19 | 杭州森盛金属制品有限公司 | Hydraulic steel wire stretcher with uniform tension |
| CN117368094A (en) * | 2023-12-07 | 2024-01-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Device and method for detecting anti-slip performance of cross cable buckle with space reticular structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2074911U (en) * | 1990-10-11 | 1991-04-10 | 华东冶金学院 | Coke tensile stenghth measuring instrument |
| GB2284673A (en) * | 1993-12-08 | 1995-06-14 | Precision Monitoring & Control | Testing,in situ,the static load-bearing capacity of a pile |
| CN102628777A (en) * | 2012-05-09 | 2012-08-08 | 中建六局第三建筑工程有限公司 | Stretching resistance detection device of curtain wall embedded part used for anchor plate construction after embedded |
| CN102818730A (en) * | 2012-08-14 | 2012-12-12 | 方裕华 | Lever type tension tester |
| CN202886203U (en) * | 2012-10-25 | 2013-04-17 | 马鞍山十七冶工程科技有限责任公司 | Small-tonnage low-speed loading device for beam bending resistance test |
| CN103174927A (en) * | 2013-03-18 | 2013-06-26 | 中国兵器工业集团第七0研究所 | Diesel engine single body pressure release valve |
-
2013
- 2013-07-26 CN CN2013103177263A patent/CN103398900A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2074911U (en) * | 1990-10-11 | 1991-04-10 | 华东冶金学院 | Coke tensile stenghth measuring instrument |
| GB2284673A (en) * | 1993-12-08 | 1995-06-14 | Precision Monitoring & Control | Testing,in situ,the static load-bearing capacity of a pile |
| CN102628777A (en) * | 2012-05-09 | 2012-08-08 | 中建六局第三建筑工程有限公司 | Stretching resistance detection device of curtain wall embedded part used for anchor plate construction after embedded |
| CN102818730A (en) * | 2012-08-14 | 2012-12-12 | 方裕华 | Lever type tension tester |
| CN202886203U (en) * | 2012-10-25 | 2013-04-17 | 马鞍山十七冶工程科技有限责任公司 | Small-tonnage low-speed loading device for beam bending resistance test |
| CN103174927A (en) * | 2013-03-18 | 2013-06-26 | 中国兵器工业集团第七0研究所 | Diesel engine single body pressure release valve |
Non-Patent Citations (1)
| Title |
|---|
| 王增洲: "液压传感器在拉力试验机上的应用", 《兵器材料科学与工程》, no. 11, 30 November 1989 (1989-11-30) * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374643A (en) * | 2014-11-07 | 2015-02-25 | 三一重型装备有限公司 | System for detecting tensile property |
| CN105241648A (en) * | 2015-10-23 | 2016-01-13 | 长安大学 | Loading device simulating loess tunnel lock foot anchor pipe end stress and use method thereof |
| CN106442148A (en) * | 2016-08-24 | 2017-02-22 | 浙江昂星链条有限公司 | Fragility detector used for chain pin shaft |
| CN106442859A (en) * | 2016-10-27 | 2017-02-22 | 沈阳建筑大学 | Loading device for fire resistance test of slim component |
| CN106383051A (en) * | 2016-11-16 | 2017-02-08 | 中车太原机车车辆有限公司 | Tension testing device |
| CN110133750A (en) * | 2019-05-21 | 2019-08-16 | 泉州芸台科技有限公司 | A kind of gravity sensor device for fast detecting and detection method |
| CN111044271A (en) * | 2019-08-02 | 2020-04-21 | 中国海洋石油集团公司 | Hydraulic connector composite load test bed device |
| CN110702442A (en) * | 2019-10-18 | 2020-01-17 | 山东省科学院海洋仪器仪表研究所 | Device and method for measuring tensile and pressure resistance of underwater instrument |
| CN117250094A (en) * | 2023-09-19 | 2023-12-19 | 杭州森盛金属制品有限公司 | Hydraulic steel wire stretcher with uniform tension |
| CN117368094A (en) * | 2023-12-07 | 2024-01-09 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Device and method for detecting anti-slip performance of cross cable buckle with space reticular structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103398900A (en) | Lever type tensile test rack | |
| US11480506B2 (en) | Soft rock shear rheological test system with simulation of coupled rainfall seepage and blasting vibrations | |
| CN103471923B (en) | Rapid testing machine for multi-diameter rock core hydraulic fracturing tensile strength | |
| CN108106945A (en) | A kind of non-homogeneous outer crowded load testing machine of casing and casing deformation computational methods | |
| CN2874496Y (en) | Gap adjustable rock radial crack permeation flow tester | |
| CN102661898B (en) | Method for testing mechanical parameters of stone by using center anchored bearing plate | |
| CN107356481A (en) | It is used for the device for measuring Rock Poisson Ratio Using in a kind of three-axis infiltration experiment | |
| CN203785966U (en) | Portable rock triaxial compression tester | |
| CN205175831U (en) | Rock triaxial rheology experimental apparatus based on true water environment | |
| CN102435499B (en) | Method and device for detecting stress strength of concrete by bending method | |
| CN204694465U (en) | Rubber support is resistance to compression and shearing strength proving installation under compound stress | |
| CN105821760A (en) | Force-monitoring support structure | |
| CN103558089B (en) | A kind of triaxial rheology experimental provision of tailings material | |
| CN207816727U (en) | A kind of portable self sealss rock SHPB experiments confining pressure pressue device | |
| CN203687865U (en) | Radial displacement measuring device used for cylindrical standard rock specimen | |
| CN103411831B (en) | Intelligent detector for detecting compressive strength of concrete, and detection method thereof | |
| CN105699211B (en) | A kind of test method of rock seepage-pipe coupling model shear rheology test | |
| CN205580948U (en) | Concrete anti -permeability apparatus | |
| CN202170505U (en) | Large-tonnage load box capable of remotely applying pressure and detecting displacement | |
| CN107966371A (en) | A kind of portable self sealss rock SHPB experiments confined pressure pressue device | |
| CN204302109U (en) | The pressure testing device of inspection tubing | |
| CN205711709U (en) | A kind of Dynamometric support structure | |
| CN108548727A (en) | A kind of portable multi-function compression test of rock instrument for in-situ test | |
| CN205276334U (en) | A spherical load box for self -balancing peg method | |
| CN211347170U (en) | Pressure sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131120 |