CN209027931U - A kind of shear box of equal strain direct shear apparatus - Google Patents
A kind of shear box of equal strain direct shear apparatus Download PDFInfo
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- CN209027931U CN209027931U CN201821815977.9U CN201821815977U CN209027931U CN 209027931 U CN209027931 U CN 209027931U CN 201821815977 U CN201821815977 U CN 201821815977U CN 209027931 U CN209027931 U CN 209027931U
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Abstract
The utility model relates to a kind of shear boxs of equal strain direct shear apparatus, it includes upper shear box, lower shear box, the upper shear box is above the lower shear box, and the upper shear box and the lower shear box penetrate through, and the upper shear box is overlapped with the center of the lower shear box；The upper shear box includes upper interior shear box, upper outer shear box, and in the upper outer shear box, the outer wall of the upper interior shear box is bonded the upper interior shear box with the inner wall of the upper outer shear box；The lower shear box includes lower interior shear box, lower outer shear box, and in the lower outer shear box, the outer wall of the lower interior shear box is bonded the lower interior shear box in the inner wall of the lower outer shear box.The utility model has the effect of shear box easy to clean, improves detection efficiency.
Description
Technical field
The utility model relates to the technical fields of geotechnique's detection, more particularly, to a kind of shear box for waiting strain direct shear apparatus.
Background technique
It is mainly used for measuring soil classifiction Deng strain direct shear apparatus, four soil samples is generallyd use, respectively different vertical
Under pressure, apply shear stress when horizontal force is sheared in the hope of destroying, then determines that the shearing resistance of soil is strong according to Coulomb's law
Spend parameter.Shear box Deng strain direct shear apparatus is to shear while applying pressure at right angle to soil sample by constant rate of speed, measures its phase
The horizontal shearing stress answered, for measuring the conventional magnetic shear intensity of soil sample.
The shear box of existing equal strain direct shear apparatus includes upper shear box, lower shear box, and upper shear box is passed through with lower shear box
It is logical, there is certain gap between the outer wall of upper shear box and the inner wall of lower shear box, soil sample is in upper shear box.When test,
Soil sample is bolted by pressure at right angle, upper shear box with ring of measuring one's own ability, and lower shear box is bolted with push rod, under cut
It is mobile by thrust to cut box, upper shear box misplaces with lower shear box, and the soil sample in upper shear box is sheared, to measure soil sample
Shear strength.
After prior art has the following deficiencies: single group experiment, need to clean shear box, then under starting
One group of experiment before cleaning, needs to dismantle upper shear box and ring of measuring one's own ability, and lower shear box is dismantled with push rod to be cleaned again, cleaning
It after complete, then installs, operates relatively complicated, reduction detection efficiency.
Utility model content
The purpose of the utility model is to provide a kind of shear boxs of equal strain direct shear apparatus, have easy to clean, raising detection
The effect of efficiency.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of equal strain direct shear apparatus
Shear box, including upper shear box, lower shear box, the upper shear box above the lower shear box, the upper shear box with
The lower shear box perforation, the upper shear box are overlapped with the center of the lower shear box；The upper shear box includes cutting in upper
Cut box, upper outer shear box, the upper interior shear box in the upper outer shear box, the outer wall of the upper interior shear box and it is described on
The inner wall of outer shear box is bonded；The lower shear box includes lower interior shear box, lower outer shear box, and the lower interior shear box is described
In lower outer shear box, the outer wall of the lower interior shear box is bonded in the inner wall of the lower outer shear box.
By using above-mentioned technical proposal, the soil samples and detecting in the shear box of the prior art terminates, and needs upper shear box
Ring is dismantled with measuring one's own ability, and lower shear box and push rod are dismantled, and are cleaned, and then successively installation could start the inspection of next group of soil sample again
It surveys, operating method is time-consuming, low efficiency.The shear box of the utility model after soil samples and detecting, by lower interior shear box with it is upper interior
Shear box takes out cleaned respectively, while the upper interior shear box of replacement and lower interior shear box being installed, and can carry out next group
The detection of soil sample.It is easy to operate without frequently dismantling, it is high-efficient.
The utility model is further arranged to: the lower interior shear box includes shear box frame, mounting plate, lower shear plate, institute
It states there are four mounting plate settings, four mounting plates are separately fixed on the inner wall of the shear box frame, the lower shear plate
It is placed on the mounting plate.
By using above-mentioned technical proposal, lower shear plate is placed on mounting plate, it is not necessary that lower interior shear box is entirely taken out,
Lower shear plate need to only be moved up, then outwell soil sample, interior shear box and lower shear plate in cleaning.
The utility model is further arranged to: upper outer shear box position corresponding with the lower outer shear box offers
Pin hole, inserted with bolt in the pin hole, the pin hole that the bolt passes through on the upper outer shear box extend into described lower outer cut
It cuts in the pin hole on box.
Shear box and lower shear box are prevented when loading soil sample in interior shear box upwards by using above-mentioned technical proposal
Relative displacement occurs, soil sample is caused just to move before not receiving shearing force, influences the result of detection.Bolt is inserted into pin
Kong Zhong can simply fix outer shear box and lower outer shear box, avoid relatively moving.
The utility model is further arranged to: being symmetrically fixed with limited block, the limit on the side wall of the lower outer shear box
Position block one end is fixed with the lower outer shear box, and the other end is abutted with the side wall of the upper outer shear box；The limited block is set
It is vertical with the direction of displacement of the lower shear box to set direction.
By using above-mentioned technical proposal, horizontal force is applied to soil sample and carries out shearing shear stress when acquiring destruction, setting
Limited block can prevent lower shear box from both moving horizontally or being moved forward and backward so that shearing force of the soil sample by multiple directions, survey
Measure result inaccuracy.Under the limitation of limited block, lower shear box moves in only the horizontal direction.
The utility model is further arranged to: the corresponding position of the upper interior shear box and the lower interior shear plate offers spiral shell
Pit, the threaded hole internal screw thread are connected with screw rod.
By using above-mentioned technical proposal, rotates screw rod and be threadedly coupled to screw rod with the threaded hole on lower shear plate, screw rod
Upper interior shear box and lower shear plate are fixed.Soil samples and detecting terminates, and upper interior shear box is taken out together with lower shear plate, takes out soil
Sample, in cleaning in shear box and lower shear plate.
The utility model is further arranged to: the bottom surface of the lower outer shear box is fixed with a connecting plate, the connecting plate
Upper surface abutted with the bottom surface of the lower shear plate.
By using above-mentioned technical proposal, lower shear plate is placed on mounting plate, is had vacant position between two pieces of mounting plates, connection
For board between two pieces of mounting plates, connecting plate also has support force to lower shear plate.
The utility model is further arranged to: the two sides of the lower outer shear box are symmetrically fixed with extension plate,
The direction of the extension plate is identical as the direction of displacement of the lower outer shear box.
By using above-mentioned technical proposal, when relative displacement occurs for outer shear box and upper outer shear box instantly, upper outer shearing
The bottom end of box can be slided on extension plate.
The utility model is further arranged to: the pin hole is diagonal the upper outer shear box and the lower outer shear box
Two are opened up respectively.
By using above-mentioned technical proposal, two pin holes are diagonally set, upper outer shear box and lower outer shear box is fixed
It is more firm, it can be relatively moved to avoid upper outer shear box and lower outer shear box.
The utility model is further arranged to: the threaded hole is distinguished on the upper interior shear box and the lower shear plate
Symmetrically open up two.
By using above-mentioned technical proposal, when upper interior shear box is connect with lower shear plate by screw rod, diagonal setting two,
When taking-up, shear plate is not susceptible to tilt under upper outer shear box uniform force, and soil sample is caused to be spilt.
In conclusion the advantageous effects of the utility model are as follows:
1. soil samples and detecting terminates, upper interior shear box and lower shear plate need to only be taken out and be cleaned, it is easy to operate, it is high-efficient；
2. load soil sample, bolt is inserted into pin hole, is avoided shear box and lower shear box that relative displacement occurs, is improved
The accuracy of measurement result；
3. screw rod is screwed into threaded hole, convenient lower shear plate takes out cleaning together with upper interior shear box.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of the lower shear box of the utility model；
Fig. 3 is the schematic diagram of the section structure of the lower shear box of the utility model.
Appended drawing reference: 1, upper shear box；11, upper outer shear box；12, upper interior shear box；2, lower shear box；21, lower to cut outside
Cut box；211, extension plate；212, connecting plate；22, lower interior shear box；221, shear box frame；222, mounting plate；223, lower shearing
Plate；31, pin hole；32, bolt；41, threaded hole；42, screw rod；5, limited block.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Referring to Fig.1, be a kind of shear box of equal strain direct shear apparatus disclosed by the utility model, including upper shear box 1, under cut
Box 2 is cut, upper shear box 1 is penetrated through with lower shear box 2 and the center of upper shear box 1 and lower shear box 2 is on same vertical line.
As shown in Figure 1, upper shear box 1 includes upper outer shear box 11, upper interior shear box 12, upper interior shear box 12 is open circles
Cylinder, upper outer shear box 11 are hollow cuboid, and the hollow part section of upper outer shear box 11 is circle.Shear box 12 is upper in upper
In outer shear box 11, the outer wall of upper interior shear box 12 is bonded with the inner wall of upper outer shear box 11.
As shown in Fig. 2-Fig. 3, lower shear box 2 includes lower outer shear box 21, lower interior shear box 22, and lower interior shear box 22 is under
Outer shear box 21 is hollow cuboid, and hollow part section is rectangle.Shear box 22 is lower interior in lower outer shear box 21 in lower
The outer wall of shear box 22 is bonded with the inner wall of lower outer shear box 21.In lower shear box 22 include shear box frame 221, mounting plate 222,
Lower shear plate 223, there are four the settings of mounting plate 222, and four mounting plates 222 are separately fixed at the inner wall of 221 lower end of shear box frame
On, lower shear plate 223 is placed on mounting plate 222, and the bottom end of upper interior shear box 12 is abutted with the upper surface of lower shear plate 223.
The bottom surface of lower outer shear box 21 is fixed with a connecting plate 212, and the surface of connecting plate 212 is abutted with the bottom face of lower shear plate 223.
Extension plate 211, the setting direction of extension plate 211 and lower outer shear box 21 are symmetrically fixed on the two sides side wall of lower outer shear box 21
Direction of displacement it is identical.
As shown in Figure 1, upper outer shear box 11 position corresponding with lower outer shear box 21 offers identical pin hole 31, pin hole
31 there are two diagonally the opening up of upper outer shear box 11 and lower outer shear box 21 respectively, inserted with bolt 32, bolt in pin hole 31
32 pin holes 31 for passing through upper outer shear box 11 are inserted into the pin hole 31 of lower outer shear box 21.When loading soil sample, outer cut is prevented
It cuts box 11 to be subjected to displacement with lower outer shear box 21, the defective tightness for causing soil sample to load, centre has the gap, and influences experimental result.
As shown in Figure 1, upper interior shear box 12 position corresponding with lower shear plate 223 offers identical threaded hole 41, spiral shell
Pit 41 is symmetrically arranged two on upper interior shear box 12 and lower shear plate 223, and 41 internal screw thread of threaded hole is connected with screw rod
42.Measurement terminates, and screw rod 42 is inserted into the threaded hole 41 in upper interior shear box 12, rotary screw 42, until 42 bottom of screw rod
Portion is threadedly coupled with the threaded hole 41 on lower shear plate 223.Shear box 12 in taking-up, the lower shearing being threadedly coupled together with lower section
Plate 223 takes out together, and soil sample is outwelled, interior shear box 12 and lower shear plate 223 in cleaning.
As Figure 1-Figure 2, be symmetrically fixed with two limited blocks 5 on the side wall of lower outer shear box 21,5 one end of limited block with
Lower outer shear box 21 is fixed, and the other end is abutted with upper outer shear box 11, and the setting direction of limited block 5 and the direction of shearing force are hung down
Directly.The limited block 5 of setting makes the displacement of outer shear box 11 with lower outer shear box 21 generation shearing force directions, other directions
It is not displaced, so that measurement result is more accurate.
The implementation principle of the present embodiment are as follows: bolt 32 is inserted into pin hole 31, is put into one piece in upper interior 12 bottom end of shear box
Permeable stone, permeable stone bottom surface abut with lower 223 surface of shear plate, then load soil sample as requested, press one again above soil sample
Block permeable stone, permeable stone upper cover uploads pressing plate, then applies vertical load as required, after soil sample is loaded, extracts bolt 32.
It pushes lower outer shear box 21 to carry out horizontal shear to soil sample, obtains experimental result.After soil sample is tested, extremely by the rotation of screw rod 42
Screw rod 42 is threadedly coupled with the threaded hole 41 of lower shear plate 223, and upper interior shear box 12 is removed with lower shear plate 223, then will
Soil sample is taken out, interior shear box 12 and lower shear plate 223 in cleaning.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (9)
1. a kind of shear box of equal strain direct shear apparatus, including upper shear box (1), lower shear box (2), the upper shear box (1) exist
Above the lower shear box (2), the upper shear box (1) and the lower shear box (2) are penetrated through, the upper shear box (1) and institute
The center for stating lower shear box (2) is overlapped, it is characterised in that: the upper shear box (1) includes upper interior shear box (12), upper outer shearing
Box (11), the upper interior shear box (12) is in the upper outer shear box (11), the outer wall of the upper interior shear box (12) and institute
State the inner wall fitting of outer shear box (11)；The lower shear box (2) includes lower interior shear box (22), lower outer shear box (21),
The lower interior shear box (22) in the lower outer shear box (21), lower outer cut in described by the outer wall of the lower interior shear box (22)
Cut the inner wall fitting of box (21).
2. the shear box of equal strain direct shear apparatus according to claim 1, it is characterised in that: lower interior shear box (22) packet
Shear box frame (221), mounting plate (222), lower shear plate (223) are included, there are four mounting plate (222) settings, described in four
Mounting plate (222) is separately fixed on the inner wall of the shear box frame (221), and the lower shear plate (223) is placed into the peace
In loading board (222).
3. the shear box of equal strain direct shear apparatus according to claim 1, it is characterised in that: the upper outer shear box (11) with
The corresponding position of the lower outer shear box (21) offers pin hole (31), described inserted with bolt (32) in the pin hole (31)
The pin hole (31) that bolt (32) passes through on the upper outer shear box (11) extend into the pin hole on the lower outer shear box (21)
(31) in.
4. the shear box of equal strain direct shear apparatus according to claim 1, it is characterised in that: the lower outer shear box (21)
Be symmetrically fixed on side wall limited block (5), described limited block (5) one end and the lower outer shear box (21) are fixed, the other end with
The side wall of the upper outer shear box (11) abuts；The displacement side of the setting direction of the limited block (5) and the lower shear box (2)
To vertical.
5. the shear box of equal strain direct shear apparatus according to claim 2, it is characterised in that: the upper interior shear box (12) with
The corresponding position of the lower shear plate (223) offers threaded hole (41), and threaded hole (41) internal screw thread is connected with screw rod (42).
6. the shear box of equal strain direct shear apparatus according to claim 2, it is characterised in that: the lower outer shear box (21)
Bottom surface is fixed with a connecting plate (212), and the upper surface of the connecting plate (212) is abutted with the bottom surface of the lower shear plate (223).
7. the shear box of equal strain direct shear apparatus according to claim 1, it is characterised in that: the lower outer shear box (21)
Two sides are symmetrically fixed with extension plate (211), the direction of displacement in the direction of the extension plate (211) and the lower outer shear box (21)
It is identical.
8. the shear box of equal strain direct shear apparatus according to claim 3, it is characterised in that: the pin hole (31) is on described
Outer shear box (11) and the diagonal of the lower outer shear box (21) open up two respectively.
9. the shear box of equal strain direct shear apparatus according to claim 5, it is characterised in that: the threaded hole (41) is described
Two are respectively symmetrically opened up on shear box (12) and the lower shear plate (223) in upper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821815977.9U CN209027931U (en) | 2018-11-03 | 2018-11-03 | A kind of shear box of equal strain direct shear apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821815977.9U CN209027931U (en) | 2018-11-03 | 2018-11-03 | A kind of shear box of equal strain direct shear apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209027931U true CN209027931U (en) | 2019-06-25 |
Family
ID=66910176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821815977.9U Active CN209027931U (en) | 2018-11-03 | 2018-11-03 | A kind of shear box of equal strain direct shear apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209027931U (en) |
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2018
- 2018-11-03 CN CN201821815977.9U patent/CN209027931U/en active Active
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