CN204924815U - Staight scissors appearance - Google Patents
Staight scissors appearance Download PDFInfo
- Publication number
- CN204924815U CN204924815U CN201520664508.1U CN201520664508U CN204924815U CN 204924815 U CN204924815 U CN 204924815U CN 201520664508 U CN201520664508 U CN 201520664508U CN 204924815 U CN204924815 U CN 204924815U
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- China
- Prior art keywords
- pin
- box
- shear box
- down cut
- direct shear
- 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.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a geotechnical engineering technical field, concretely relates to a staight scissors appearance, including the experiment platform and set up in lower shear box on the experiment platform, last shear box, down shear box mobilizable set up in on the experiment platform, go up shear box set up in down on the shear box, it constitutes the square shear box who is used for holding the sample with lower shear box cooperation to go up shear box, still including the pin, the both sides of going up shear box are equipped with first cotter hole, be equipped with on the shear box down with the second cotter hole that first cotter hole corresponds, the pin passes first cotter hole inserts the second cotter hole, be equipped with pin detection mechanism down in the shear box, pin detection mechanism is used for judging and the suggestion the state of pin. The utility model provides a pair of staight scissors appearance through setting up pin detection mechanism, reminds the experimenter to extract pin back experiment, prevents that it leads to staight scissors appearance to damage not extract experiment because of the pin.
Description
Technical field
The utility model relates to Geotechnical Engineering field, particularly relates to a kind of direct shear apparatus, relates more specifically to a kind of photoelectric reading direct shear apparatus being applicable to student experimenting.
Background technology
As everyone knows, direct shear apparatus is a kind of instrument for measuring soil sample shearing strength under static load condition, because it is simple, so popularization degree is higher.
At present, general traditional direct shear apparatus mainly comprises shear box, guide rail, vertical loading device, shearing force bringing device, measure one's own ability steel loop and readout instrument etc.Tradition direct shear apparatus is when measuring soil classifiction, and experimenter needs soil sample to load shear box, then fixes shear box with pin, then with hand dynamic shearing force bringing device, often shakes a circle, will read the reading in single reading instrument.
Can find out, traditional direct shear apparatus also exists great inconvenience in data recording process.First, because in process of the test, the reading of clock gauge is in dynamic changing process, adopt the method for artificial reading both to add error of test data, add the workload of test operation personnel simultaneously, general needs two people coordinated; Secondly, in experimentation, there is a lot of classmate to forget the pin of fixed shear box pulled out and just test, cause direct shear apparatus easily to damage, and a lot of direct shear apparatuses in laboratory all damage due to shear pin; In addition, in process of the test, manually shake shearing force bringing device, be difficult to strict control at 4-6r/min, certain error can be caused.
Utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model there is provided a kind of direct shear apparatus, by arranging pin testing agency, tests after reminding experimenter to extract pin, prevents from carrying out experiment cause direct shear apparatus to damage because pin not being extracted.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of direct shear apparatus, comprise experiment porch and be arranged at the down cut box on described experiment porch, upper shear box, described down cut box is movably arranged on described experiment porch, described upper shear box is arranged on described down cut box, and described upper shear box and down cut box coordinate the square cutouts box being configured for holding sample;
Also comprise pin, the both sides of described upper shear box are provided with the first pin hole, described down cut box is provided with second pin hole corresponding with described first pin hole, described pin passes described first pin hole and inserts described second pin hole, be provided with pin testing agency in described down cut box, described pin testing agency is for judging and pointing out the state of described pin.
Further, aforesaid pin testing agency comprises pin circuit, spring and contact, described spring is vertically fixed on the bottom surface of described second pin hole, described contact is arranged at the movable end of described spring, the opening part sidewall of described second pin hole is provided with chute, and described contact and chute coordinate the break-make controlling described pin circuit.
Further, aforesaid pin circuit is provided with the pilot lamp for pointing out described pin state.
Further, the quantity of aforementioned pilot lamp is two, and described each pilot lamp coordinates respectively by the contact of correspondence and chute and controls.
Further, vertical loading mechanism, horizontal addload mechanism and reading mechanism is also comprised; Described vertical loading mechanism is used for applying vertical pressure to described upper shear box; Described horizontal addload mechanism and reading mechanism are arranged at described square cutouts box both sides respectively, and described horizontal addload mechanism is used for applying horizontal pressure force to described down cut box, and described reading mechanism is for obtaining the experimental data of the sample in described square cutouts box;
Further, aforementioned levels load maintainer comprises motor and shearing force bringing device, and the output shaft of described motor is connected by belt with the input shaft of shearing force bringing device, and described shearing force bringing device applies horizontal pressure force to described down cut box.
Further, aforementioned shearing force bringing device comprises shake handwheel and pushing ram, and described shake handwheel drives described pushing ram tangential movement, and described pushing ram is connected with described down cut box.
Further, aforementioned levels load maintainer also comprises phototimer, and described phototimer is arranged at the top of the input shaft of described shearing force bringing device, and described belt is provided with dimmer, and described phototimer and dimmer coordinate timing.
Further, aforementioned reading mechanism comprises steel loop of measuring one's own ability, readout instrument and machine of taking pictures, described square cutouts box move make described in measure one's own ability steel loop produce deformation, the deformation of described steel loop of measuring one's own ability makes described readout instrument show described experimental data, described machine of taking pictures is corresponding with described readout instrument to be arranged and is electrically connected with described phototimer, and described in described phototimer controls, machine of taking pictures is taken pictures to described readout instrument.
Further, aforementioned upper shear box is provided with connecting portion, described connecting portion to be measured one's own ability between steel loop with described, described in measure one's own ability between steel loop with described readout instrument and be connected respectively by connecting link.
(3) beneficial effect
Technique scheme of the present utility model has following beneficial effect:
The utility model provides a kind of direct shear apparatus, and the upper shear box of this direct shear apparatus and down cut box coordinate the square cutouts box being configured for holding sample; Pin testing agency is provided with in down cut box, pin testing agency is for judging and pointing out the state of pin, by arranging pin testing agency, when pin inserts, test after reminding experimenter to extract pin, prevent from carrying out experiment cause direct shear apparatus to damage because pin not being extracted, greatly can avoid the spoilage of direct shear apparatus, improve the serviceable life of direct shear apparatus.
The structure of the direct shear apparatus that the utility model provides is simple, method of operating is simple, be different from the general needs of traditional direct shear apparatus experiment two experimenters to have cooperated, when the direct shear apparatus that the utility model provides is tested, only need an experimenter just can complete easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model direct shear apparatus;
Fig. 2 is the syndeton schematic diagram of pin in the utility model;
Fig. 3 is the structural representation of the second pin hole in the utility model.
Fig. 4 is the schematic diagram of pin circuit in the utility model;
Fig. 5 is the structural representation of horizontal addload mechanism in the utility model;
Wherein, 1: motor; 2: shearing force bringing device; 3: phototimer; 4: pilot lamp; 5: dimmer; 6: upper shear box; 7: pin; 8: down cut box; 9: readout instrument; 10: steel loop of measuring one's own ability; 11: spring; 12: contact; 13: chute; 14: machine of taking pictures; 15: the first pin holes; 16: the second pin holes.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more; Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
As shown in Figure 1, a kind of direct shear apparatus described in the present embodiment, comprise experiment porch and be arranged at down cut box 8, the upper shear box 6 on experiment porch, down cut box 8 is movably arranged on experiment porch, down cut box 8 has ball, ball can drive down cut box 8 to move, and upper shear box 6 is arranged on down cut box 8, and upper shear box 6 and down cut box 8 coordinate the square cutouts box being configured for holding sample; Also comprise vertical loading mechanism, horizontal addload mechanism and reading mechanism; Vertical loading mechanism is used for upwards shear box 6 and applies vertical pressure, and vertical loading mechanism can be any mechanism that can apply vertical pressure, as hydraulic cylinder etc.; Described horizontal addload mechanism and reading mechanism are arranged at square cutouts box both sides respectively, and horizontal addload mechanism is used for downward shear box 8 and applies horizontal pressure force, and reading mechanism is for obtaining the experimental data of the sample in square cutouts box.
As shown in Figure 2, also comprise pin 7, the both sides of upper shear box 6 are provided with the first pin hole 15, down cut box 8 is provided with second pin hole 16 corresponding with the first pin hole 15, pin 7 passes the first pin hole 15 and inserts the second pin hole 16, position upper shear box 6 and down cut box 8, be provided with pin 7 testing agency in down cut box 8, pin 7 testing agency is for judging and pointing out the state of pin 7.
As shown in Figure 3, pin 7 testing agency comprises pin 7 circuit, spring 11 and contact 12, spring 11 is vertically fixed on the bottom surface of the second pin hole 16, contact 12 is arranged at the movable end of spring 11, the opening part sidewall of the second pin hole 16 is provided with chute 13, and contact 12 and chute 13 coordinate the break-make controlling pin 7 circuit.As shown in Figure 4, pin 7 circuit is provided with the pilot lamp 4 for pointing out pin 7 state.The quantity of the pilot lamp 4 in the present embodiment is two, and each pilot lamp 4 coordinates respectively by the contact 12 of correspondence and chute 13 and controls.Pin 7 circuit of the present embodiment also comprises power supply and resistance, after two pilot lamp 4 are in parallel and power supply and resistant series, contact 12 and chute 13 are equivalent to the effect of switch, connect with pilot lamp 4 respectively, and control corresponding pilot lamp 4 respectively, when pin 7 inserts time, lower pressing spring 11, time contact 12 contact with chute 13, be communicated with pin 7 circuit, light pilot lamp 4.
As shown in Figure 5, horizontal addload mechanism comprises motor 1 and shearing force bringing device 2, the output shaft of motor 1 is connected by belt with the input shaft of shearing force bringing device 2, shearing force bringing device 2 downwards shear box 8 applies horizontal pressure force, in experimentation, the horizontal force loading velocity that motor 1 can control shearing force bringing device 2 is 4-6r/min, to reduce experimental error.Shearing force bringing device 2 comprises shake handwheel and pushing ram, and shake handwheel drives pushing ram tangential movement, and pushing ram is connected with down cut box 8.Horizontal addload mechanism also comprises phototimer 3, phototimer 3 is arranged at the top of the input shaft of shearing force bringing device 2, and in the present embodiment, phototimer 3 is fixed on shearing force bringing device 2, belt is provided with dimmer 5, and phototimer 3 and dimmer 5 coordinate timing.
Reading mechanism comprises steel loop 10 of measuring one's own ability, readout instrument 9 and machine 14 of taking pictures, square cutouts box moves the steel loop 10 that makes to measure one's own ability and produces deformation, the deformation of steel loop 10 of measuring one's own ability makes readout instrument 9 show experimental data, machine 14 of taking pictures is corresponding with readout instrument 9 to be arranged and is electrically connected with phototimer 3, phototimer 3 controls machine 14 pairs of readout instruments 9 of taking pictures and takes pictures, when phototimer 3 often counts one time, becoming control machine 14 of taking pictures takes pictures once, the method of operating of reading on shearing force bringing device 2 limit can be rotated in abandoning tradition direct shear apparatus limit, both error of having disliked little, additionally reduce the workload of experimenter.
During experiment, first sample is loaded in square cutouts box, screw on pin 7 and locate, now pin 7 extrusion spring 11, contact 12 is contacted, pin 7 circuit communication with chute 13, pilot lamp 4 is bright, vertical loading mechanism provides the static load P on vertical direction, take out the pin 7 of location, now deformation replied by spring 11, and contact 12 is separated with chute 13, pilot lamp 4 goes out, and expression can start test.Open motor 1 switch, motor 1 uniform rotation, control voltage makes its rotating speed at 4-6r/min, there is deformation in upper shear box 6 steel loop 10 that promotes to measure one's own ability, make readout instrument 9 indicators turn, and often rotate a circle, the dimmer 5 on shearing force bringing device 2 is by phototimer 3, machine 14 of taking pictures is taken pictures once facing to readout instrument 9, and the photo by storing in the machine of taking pictures 14 after off-test just can obtain reading.
Embodiment of the present utility model provides for the purpose of example and description, and is not exhaustively or by the utility model be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present utility model and practical application are better described, and enables those of ordinary skill in the art understand the utility model thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (10)
1. a direct shear apparatus, it is characterized in that, comprise experiment porch and be arranged at the down cut box on described experiment porch, upper shear box, described down cut box is movably arranged on described experiment porch, described upper shear box is arranged on described down cut box, and described upper shear box and down cut box coordinate the square cutouts box being configured for holding sample;
Also comprise pin, the both sides of described upper shear box are provided with the first pin hole, described down cut box is provided with second pin hole corresponding with described first pin hole, described pin passes described first pin hole and inserts described second pin hole, be provided with pin testing agency in described down cut box, described pin testing agency is for judging and pointing out the state of described pin.
2. direct shear apparatus according to claim 1, it is characterized in that, described pin testing agency comprises pin circuit, spring and contact, described spring is vertically fixed on the bottom surface of described second pin hole, described contact is arranged at the movable end of described spring, the opening part sidewall of described second pin hole is provided with chute, and described contact and chute coordinate the break-make controlling described pin circuit.
3. direct shear apparatus according to claim 2, is characterized in that, described pin circuit is provided with the pilot lamp for pointing out described pin state.
4. direct shear apparatus according to claim 3, is characterized in that, the quantity of described pilot lamp is two, and described each pilot lamp coordinates respectively by the contact of correspondence and chute and controls.
5. direct shear apparatus according to claim 1, is characterized in that, also comprises vertical loading mechanism, horizontal addload mechanism and reading mechanism; Described vertical loading mechanism is used for applying vertical pressure to described upper shear box; Described horizontal addload mechanism and reading mechanism are arranged at described square cutouts box both sides respectively, and described horizontal addload mechanism is used for applying horizontal pressure force to described down cut box, and described reading mechanism is for obtaining the experimental data of the sample in described square cutouts box;
6. direct shear apparatus according to claim 5, it is characterized in that, described horizontal addload mechanism comprises motor and shearing force bringing device, and the output shaft of described motor is connected by belt with the input shaft of shearing force bringing device, and described shearing force bringing device applies horizontal pressure force to described down cut box.
7. direct shear apparatus according to claim 6, is characterized in that, described shearing force bringing device comprises shake handwheel and pushing ram, and described shake handwheel drives described pushing ram tangential movement, and described pushing ram is connected with described down cut box.
8. direct shear apparatus according to claim 6, it is characterized in that, described horizontal addload mechanism also comprises phototimer, and described phototimer is arranged at the top of the input shaft of described shearing force bringing device, described belt is provided with dimmer, and described phototimer and dimmer coordinate timing.
9. direct shear apparatus according to claim 8, it is characterized in that, described reading mechanism comprises steel loop of measuring one's own ability, readout instrument and machine of taking pictures, described square cutouts box move make described in measure one's own ability steel loop produce deformation, the deformation of described steel loop of measuring one's own ability makes described readout instrument show described experimental data, described machine of taking pictures is corresponding with described readout instrument to be arranged and is electrically connected with described phototimer, and described in described phototimer controls, machine of taking pictures is taken pictures to described readout instrument.
10. direct shear apparatus according to claim 9, is characterized in that, described upper shear box is provided with connecting portion, described connecting portion to be measured one's own ability between steel loop with described, described in measure one's own ability between steel loop with described readout instrument and be connected respectively by connecting link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520664508.1U CN204924815U (en) | 2015-08-28 | 2015-08-28 | Staight scissors appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520664508.1U CN204924815U (en) | 2015-08-28 | 2015-08-28 | Staight scissors appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204924815U true CN204924815U (en) | 2015-12-30 |
Family
ID=54973931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520664508.1U Expired - Fee Related CN204924815U (en) | 2015-08-28 | 2015-08-28 | Staight scissors appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204924815U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950122A (en) * | 2017-04-28 | 2017-07-14 | 四川理工学院 | A kind of device and assay method for determining ground cylinder sample Shear Strength Index |
| CN107167377A (en) * | 2017-05-03 | 2017-09-15 | 河海大学 | A kind of utilization direct shear apparatus determines the device and method of soil body tensile strength |
| CN107860647A (en) * | 2017-12-19 | 2018-03-30 | 浙江工业大学 | Shearing box device for constant-section direct shear experiment and operation method |
-
2015
- 2015-08-28 CN CN201520664508.1U patent/CN204924815U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950122A (en) * | 2017-04-28 | 2017-07-14 | 四川理工学院 | A kind of device and assay method for determining ground cylinder sample Shear Strength Index |
| CN107167377A (en) * | 2017-05-03 | 2017-09-15 | 河海大学 | A kind of utilization direct shear apparatus determines the device and method of soil body tensile strength |
| CN107860647A (en) * | 2017-12-19 | 2018-03-30 | 浙江工业大学 | Shearing box device for constant-section direct shear experiment and operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160828 |