CN205333464U - Hand operations suitable for survey among relative density test and get maximum dry density - Google Patents
Hand operations suitable for survey among relative density test and get maximum dry density Download PDFInfo
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- CN205333464U CN205333464U CN201620097456.9U CN201620097456U CN205333464U CN 205333464 U CN205333464 U CN 205333464U CN 201620097456 U CN201620097456 U CN 201620097456U CN 205333464 U CN205333464 U CN 205333464U
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Abstract
The utility model discloses a hand operations suitable for survey among relative density test and get maximum dry density, including a metal container section of thick bamboo, the drive hammer, the hammer seat, protect a section of thick bamboo, a pedestal, handle and handrail, the top of the interior experimental soil sample of a metal container section of thick bamboo is arranged in to the hammer seat, the drive hammer is located hammer seat directly over, a metal container section of thick bamboo is installed on the base through detachable, it is the equal open -ended metal cylinder in both ends to protect a section of thick bamboo, the bottom of protecting a section of thick bamboo is fixed in on the top of a metal container section of thick bamboo, the handrail includes two bars and bar connecting piece, be equipped with two through -holes along drive hammer axial symmetry on the drive hammer, the lower extreme of two bars all is fixed in on the hammer seat, two through -holes are passed respectively to the upper end of two bars, the upper end of two bars is passed through the bar connecting piece and is connected, the handle is including handle connecting rod and handle, the lower extreme of handle connecting rod is fixed in on the drive hammer top surface, upper end and handle fixed connection, the symmetry is equipped with two footboards on the base. The device simple structure, can be fine be applicable to laboratory or on -the -spot relative density test.
Description
Technical field
This utility model relates to laboratory soil test device technique field, is specifically related to a kind of hand gear measuring maximum dry density suitable in relative density test。
Background technology
Relative density test is a kind of important soil test, and by relative density test, we can obtain surveyed soil sample maximum dry density in the dry state, thus providing concrete soil sample physical parameter for engineering practice。In the process carrying out relative density test and measuring maximum dry density, although market has had electronic testing equipment, but relative to hand gear, electrical equipment is heavy, not portable, and need electric power to provide power, using relatively difficult in the wild in the process of engineering geologic investigation, therefore hand gear has its irreplaceability。Regulation according to " earthwork test rule " (SL237-1999), the existing hand gear suitable in relative density test is used to measure maximum dry density, concrete operations engineering need three people operate simultaneously, the height that hammer is brought up to 15cm according to the frequency of 30-60 time per minute by one people falls, second people uses vibrating tine to knock the outer wall of canister cylinder according to the frequency of 150-200 time per minute, canister cylinder is with the hands fixed in 3rd individual demand, it is prevented that test process in canister cylinder movement, topple over。Three testing crews carry out a physical property test simultaneously and waste manpower greatly, and owing to the internal diameter dropped hammer with canister cylinder is more or less the same, drop hammer the top of canister cylinder of often colliding with in the process fallen, not only the active force of hammer is not applied in test soil sample, and if things go on like this also can damage canister cylinder and hammer。For above phenomenon, the existing hand gear suitable in relative density test need to improve。
Summary of the invention
In order to solve prior art Problems existing, this utility model provides a kind of hand gear measuring maximum dry density suitable in relative density test, this hand gear simple in construction, easy to operate, can be good at being applicable to the relative density test at laboratory or scene, reach to save manpower, time saving and energy saving purpose。
Realizing the technical scheme that this utility model above-mentioned purpose samples is:
A kind of hand gear measuring maximum dry density suitable in relative density test, including canister cylinder, columned hammer, hammer seat, casing, base, handle and handrail, canister cylinder includes chassis and cylindric canister cylinder cylinder, hammer seat is in the form of annular discs, the diameter of hammer seat is equal to the internal diameter of canister cylinder cylinder, hammer seating tests the top of soil sample in canister cylinder, the diameter of hammer is less than the internal diameter of canister cylinder cylinder, hammer is positioned at the surface of hammer seat, the chassis of canister cylinder is by being mounted on base, casing is the metallic cylinder of the equal opening in two ends, the internal diameter of casing is identical with the internal diameter of canister cylinder cylinder, the bottom of casing is fixed on the top of canister cylinder, handrail includes two bars and bar connector, hammer is axially arranged with two through hole along hammer, the lower end of two bars is both secured on hammer seat, two bars are each perpendicular to hammer seat, the upper end of two bars is each passed through two through hole, two bars are all flexibly connected with hammer, the upper end of two bars is connected by bar connector, handle includes handle connecting rod and hands handle, the lower end of handle connecting rod is fixed on hammer end face, handle connecting rod is perpendicular to hammer end face, the upper end of handle connecting rod is fixing with handle to be connected, base side wall is arranged with two pedals, angle between two pedals is acute angle。
Also including limiting plate, limiting plate is in the form of annular discs, and limiting plate is provided with perforation, limiting plate is positioned at the surface of casing and hammer, two bars are fixedly connected with through limiting plate and two bars with limiting plate, and handle connecting rod is through the perforation of limiting plate, and handle connecting rod is flexibly connected with limiting plate。
Described bar and handle connecting rod are circular pin, and perforation and through hole are circular port, and the diameter of through hole is more than the diameter of bar, and the diameter of perforation is more than the diameter of handle connecting rod。
Handrail also includes handrail disk and handrail disk connecting rod, and handrail disc level is arranged, and the lower end of handrail disk connecting rod is fixed on bar connector, and the bottom surface central authorities of handrail disk are fixed in upper end。
Described bar is axially symmetric structure, and the central authorities of bar connector are fixed in the lower end of handrail disk connecting rod。
The bottom of casing is provided with the draw-in groove of annular, the top of canister cylinder is provided with the casing interface of circle, and the internal diameter of casing interface is equal to the internal diameter of casing, and the wall thickness of casing interface is equal to the degree of depth of draw-in groove radial direction, casing interface inserts in draw-in groove, and the external diameter of casing is identical with the external diameter of canister cylinder。
Handle is the plate of strip, and one end of handle is fixing with handle connecting rod to be connected, and handle is perpendicular to handle connecting rod。
Described base is in the form of annular discs, and pedal is wedge shaped, and the end face of one end that step height is higher is fixed on base side wall, and the ground of pedal and the bottom surface of base are positioned on same horizontal plane。
The diameter on described chassis is more than the external diameter of canister cylinder cylinder, canister cylinder cylinder body bottom is fixed on chassis, chassis is arranged with two screwed hole A, base is arranged with two screwed hole B, the position of two screwed hole A, size are corresponding with two screwed hole B respectively, and chassis is by two bolt firm bankings。
The material of described canister cylinder, hammer, casing, base, hammer seat, handle, handrail and limiting plate is rustless steel。
Compared with prior art, the beneficial effects of the utility model and advantage are in that:
1) this apparatus structure is simple, and all parts make by rustless steel, thus cheap。
2) this hand gear is additionally arranged base and pedal, laboratory technician can tramp with one's feet pedal in the process dropped hammer, by pedal, canister cylinder and casing are fixed, therefore do not need the 3rd people's extra assignment (the fixing canister cylinder of the 3rd people to operation), dramatically saves on manpower；
3) this hand gear is additionally arranged casing, limiting plate and handle, the existence of handle and handrail makes hammer be vertical drop all the time at dropping process, and the axis of hammer is all the time with the axis of canister cylinder point-blank, will not offset, the existence of limiting plate ensures that hammer rising drop every time strictly meets specification regulation, the existence of casing makes hammer bottom of hammer in rising dropping process be always positioned in casing, and the internal diameter of casing is identical with canister cylinder internal diameter, the process dropped hammer would not occurring, hammer collides with the phenomenon of canister cylinder top, therefore, this hand gear is used not only to be effectively increased the efficiency of compacted soil samples, but also it is effectively protected hammer and canister cylinder。
Accompanying drawing explanation
The structural representation of the hand gear measuring maximum dry density suitable in relative density test that Fig. 1 provides for this utility model。
Fig. 2 is the structural representation of this hand gear partial component。
Fig. 3 is the structural representation of casing。
Fig. 4 is the structural representation of canister cylinder。
Wherein, 1-canister cylinder, 2-casing, 3-hammer, 4-base, 5-hammer seat, 6-handrail, 7-handle, 8-bar, 9-bar connector, 10-handle connecting rod, 11-handle, 12-pedal, 13-limiting plate, 14-hands disk, 15-handrail disk connecting rod, 16-perforation, 17-through hole, 18-groove, 19-canister cylinder cylinder, 20-chassis, 21-casing interface into shape。
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail。
The structure of the hand gear measuring maximum dry density suitable in relative density test that this utility model provides as depicted in figs. 1 and 2, including canister cylinder 1, columned hammer 3, casing 2, base 4, hammers seat 5, handle 6, handrail 7 and limiting plate 13 into shape。
Canister cylinder 1 includes chassis 20 and cylindric canister cylinder cylinder 19, and the diameter on chassis 20 is more than the external diameter of canister cylinder cylinder 19, and chassis 20 is welded in bottom canister cylinder cylinder 19。Base 4 is in the form of annular discs, and chassis is arranged with two screwed hole A, and base is arranged with two screwed hole B, and the position of two screwed hole A, size are corresponding with two screwed hole B respectively, and chassis is fixed on base by two bolts。
Casing 2 is the metallic cylinder of the equal opening in two ends, and the internal diameter of casing 2 is identical with the internal diameter of canister cylinder 1, and the bottom of casing 2 is provided with the draw-in groove 18 of annular, as shown in Figure 3。The top of canister cylinder cylinder is provided with the casing interface 21 of circle, and as shown in Figure 4, the internal diameter of casing interface 21 is equal to the internal diameter of casing 2, and the external diameter of casing 2 is identical with the external diameter of canister cylinder 1。The wall thickness of casing interface is equal to the degree of depth of draw-in groove 18 radial direction, and the height that the height of casing interface 21 is axial equal to draw-in groove, casing interface 21 inserts in draw-in groove 18。In the present embodiment, the diameter on the chassis of canister cylinder is 80mm, and thickness is 5mm, and the diameter of screwed hole A is 5mm, and the distance between two screwed hole A centers is 85mm；The height of canister cylinder cylinder is 120mm, internal diameter 50mm, external diameter 60mm；The height of casing interface is 7mm, and internal diameter is 50mm, and external diameter is 55mm；The height of casing is 60mm, and internal diameter is 50mm, and external diameter is 60mm；The axial height of draw-in groove is 7mm, and the degree of depth radially is 2.5mm。
Hammer seat 5 is in the form of annular discs, and the diameter of hammer seat 5 is equal to the internal diameter of canister cylinder cylinder, and hammer seat 5 is positioned at canister cylinder 1。In the present embodiment, the diameter beating seat is 50mm, and thickness is 10mm。
The diameter of hammer 3 is less than the internal diameter of canister cylinder cylinder 1, and hammer 3 is positioned at the surface of hammer seat 5。Hammer 3 is axially arranged with the axis of through hole 17 two through hole 17 of two circles and the axis of hammer 3 along hammer in approximately the same plane。In the present embodiment, the height of hammer is 115mm, and diameter is 42mm, and quality is 1.25Kg, and the diameter of through hole 17 is 8mm, and the distance between two through hole center is 33mm。
Limiting plate 13 is in the form of annular discs, and the central authorities of limiting plate 13 are provided with the perforation 16 of circle, and limiting plate 13 is positioned at casing 2 and the surface of hammer 3。In the present embodiment, the diameter of limiting plate is 50mm, thickness is 5mm, the diameter of perforation is 13mm, limiting plate bottom surface (refers to not fill in canister cylinder test soil sample to hammer end face, when hammer being placed on hammer seat) distance be 150mm, the fixing position of limiting plate meets the regulation of " earthwork test rule " (SL237-1999)。
Handrail 6 includes two circular bars 8, bar connector 9, handrail disk 14 and handrail disk connecting rod 15, and bar connector 15 is axially symmetric structure, and handrail disk 14 is horizontally disposed with。The lower end of two bars 8 is both secured on hammer seat 5, and two bars 8 are each perpendicular to hammer seat 5。The diameter of bar 8 is big less than the diameter of through hole 17, and the upper end of two bars 8 is first each passed through two through hole 17, and owing to the diameter of bar is big less than the diameter of through hole, hammer can move up and down along two bars。The upper end of two bars 8 is then passed through limiting plate 13 after hammer 3, and limiting plate 13 and two handrails 8 all weld together。The upper end of two bars 8 connects by bar connector 9 is fixing, and the central authorities of bar connector are fixed in the lower end of handrail disk connecting rod, and the bottom surface central authorities of handrail disk are fixed in upper end。In the present embodiment, bar connector includes the end connecting plate of two semicircles and a square strip middle connecting plate, both ends connecting plate is symmetricly set in the two ends of middle connecting plate, making bar connector entirety in abnormity tabular, the upper end of two bars is individually fixed in the position that both ends connecting plate is connected with middle connecting plate。The radius of both ends connector is 5mm, and thickness is 5mm, and the thickness of middle connecting plate is 5mm, and length is 33mm, and width is 5mm；The diameter of bar is 5mm, and length is 515mm, and the distance between two bar axis is 33mm；The diameter of handrail disk connecting rod is 5mm, and length is 50mm；The diameter of handrail disk is 30mm, and thickness is 3mm。
Handle 7 includes handle connecting rod 10 and the handle 11 of circle, and handle 11 is the plate of strip。The central authorities of hammer 3 end face are fixed in the lower end of handle connecting rod 10, and handle connecting rod 10 is perpendicular to hammer 3 end face。The upper end of handle connecting rod 10 is fixing with one end of handle 11 to be connected, and handle 11 is perpendicular to handle connecting rod 10。The diameter of handle connecting rod 10 is less than the diameter of perforation 16, and handle connecting rod 10 is through the perforation 16 of limiting plate, and owing to the diameter of handle connecting rod is less than the diameter bored a hole, handle connecting rod can move up and down。In the present embodiment, the diameter of handle connecting rod is 10mm, and length is 290mm, and the length of handle is 80mm, and width is 12mm, and thickness is 5mm。
Base 4 sidewall is arranged with two pedals 12。Pedal 12 is wedge shaped, and the end face of one end that pedal 12 is highly higher is fixed on base 4 sidewall, and the bottom surface of the ground of pedal 12 and base 4 is positioned on same horizontal plane。Angle between two pedals is acute angle。In the present embodiment, the angle between two pedals is 60 °。
For ensureing stability during whole device operation, casing, base, hammer seat, canister cylinder, limiting plate, hammer axis preferably on same straight line。
The material of canister cylinder, hammer, casing, base, hammer seat, handle, handrail and limiting plate is rustless steel, so that whole device not only cost of manufacture is low, and wear-resisting damage tolerant。
The using method of the hand gear for measuring maximum dry density in relative density test that this utility model provides is as follows:
To dry or air-dry test soil sample is divided three times to pour into and carried out relative density test in canister cylinder according to the regulation of " earthwork test rule " (SL237-1999), its concrete operations are:
1) will be placed on level ground with foot-operated base before the test, the chassis of canister cylinder is bolted on base, pour ground floor soil sample into and smooth test soil sample surface, again casing is enclosed within canister cylinder top, hammer seat is put on the test soil sample surface of canister cylinder, and hammer drops on hammer seat naturally due to action of gravity；
2) one of them testing crew both feet foot pedals, left hand pins handrail disk, make to beat seat bottom portion and test soil sample intimate surface contact, the right hand pulls up hammer by pulling up handle, when release handle after hammer top contact limiting plate, hammer falls peening hammer seat naturally, thus by native for test sample compacting, per minute about can pulling handle hammering 30-60 time, another one testing crew uses vibrating tine to knock the outer wall of canister cylinder according to the frequency of 150-200 time per minute；
3) after test carries out 5-10 minute, take off the parts such as hammer seat, hammer and casing successively, and in canister cylinder, pour second layer soil sample into, carry out above-mentioned same practical operation of hitting and make, when second layer soil sample hit that practical operation completes laggard row third layer soil sample hit practical operation work；
4) when third layer soil sample hit take off successively after practical operation completes hammer, hammer the parts such as seat and casing, flush with canister cylinder end face with repairing soil cutter floating test soil sample surface, the lower canister cylinder of dismounting from base again, especially it should be noted that do not make the test soil sample in canister cylinder spill in the process of canister cylinder under dismounting, finally it is placed on balance by canister cylinder to weigh the gross mass of canister cylinder and sample, when canister cylinder quality and internal capacity are fixing, the dry density of test soil sample just can calculate。Generally should performing twice at parallel test, the dry density difference calculated is less than, in 0.03g/cm3 situation, choosing wherein being of higher value and tested the maximum dry density testing soil sample, so far test complete。
Claims (10)
1. the hand gear measuring maximum dry density suitable in relative density test, including canister cylinder, columned hammer and hammer seat, canister cylinder includes chassis and cylindric canister cylinder cylinder, hammer seat is in the form of annular discs, the diameter of hammer seat is equal to the internal diameter of canister cylinder cylinder, hammer seating tests the top of soil sample in canister cylinder, the diameter of hammer is less than the internal diameter of canister cylinder cylinder, hammer is positioned at the surface of hammer seat, it is characterized in that: also include casing, base, handle and handrail, the chassis of canister cylinder is by being mounted on base, casing is the metallic cylinder of the equal opening in two ends, the internal diameter of casing is identical with the internal diameter of canister cylinder cylinder, the bottom of casing is fixed on the top of canister cylinder, handrail includes two bars and bar connector, hammer is axially arranged with two through hole along hammer, the lower end of two bars is both secured on hammer seat, two bars are each perpendicular to hammer seat, the upper end of two bars is each passed through two through hole, two bars are all flexibly connected with hammer, the upper end of two bars is connected by bar connector, handle includes handle connecting rod and hands handle, the lower end of handle connecting rod is fixed on hammer end face, handle connecting rod is perpendicular to hammer end face, the upper end of handle connecting rod is fixing with handle to be connected, base side wall is arranged with two pedals, angle between two pedals is acute angle。
2. the hand gear measuring maximum dry density suitable in relative density test according to claim 1, it is characterized in that: also include limiting plate, limiting plate is in the form of annular discs, limiting plate is provided with perforation, limiting plate is positioned at the surface of casing and hammer, two bars are fixedly connected with through limiting plate and two bars with limiting plate, and handle connecting rod is through the perforation of limiting plate, and handle connecting rod is flexibly connected with limiting plate。
3. the hand gear measuring maximum dry density suitable in relative density test according to claim 2, it is characterized in that: described bar and handle connecting rod are circular pin, perforation and through hole are circular port, the diameter of through hole is more than the diameter of bar, and the diameter of perforation is more than the diameter of handle connecting rod。
4. the hand gear measuring maximum dry density suitable in relative density test according to claim 1, it is characterized in that: handrail also includes handrail disk and handrail disk connecting rod, handrail disc level is arranged, the lower end of handrail disk connecting rod is fixed on bar connector, and the bottom surface central authorities of handrail disk are fixed in upper end。
5. the hand gear measuring maximum dry density suitable in relative density test according to claim 4, it is characterised in that: described bar is axially symmetric structure, and the central authorities of bar connector are fixed in the lower end of handrail disk connecting rod。
6. the hand gear measuring maximum dry density suitable in relative density test according to claim 1, it is characterized in that: the bottom of casing is provided with the draw-in groove of annular, the top of canister cylinder is provided with the casing interface of circle, the internal diameter of casing interface is equal to the internal diameter of casing, the wall thickness of casing interface is equal to the degree of depth of draw-in groove radial direction, casing interface inserts in draw-in groove, and the external diameter of casing is identical with the external diameter of canister cylinder cylinder。
7. the hand gear measuring maximum dry density suitable in relative density test according to claim 1, it is characterised in that: handle is the plate of strip, and one end of handle is fixing with handle connecting rod to be connected, and handle is perpendicular to handle connecting rod。
8. the hand gear measuring maximum dry density suitable in relative density test according to claim 1, it is characterized in that: described base is in the form of annular discs, pedal is wedge shaped, the end face of one end that step height is higher is fixed on base side wall, and the ground of pedal and the bottom surface of base are positioned on same horizontal plane。
9. the hand gear measuring maximum dry density suitable in relative density test according to claim 8, it is characterized in that: the diameter on described chassis is more than the external diameter of canister cylinder cylinder, canister cylinder cylinder body bottom is fixed on chassis, chassis is arranged with two screwed hole A, base is arranged with two screwed hole B, the position of two screwed hole A, size are corresponding with two screwed hole B respectively, and chassis is by two bolt firm bankings。
10. the hand gear measuring maximum dry density suitable in relative density test according to claim 1, it is characterised in that: the material of described canister cylinder, hammer, casing, base, hammer seat, handle, handrail and limiting plate is rustless steel。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620097456.9U CN205333464U (en) | 2016-01-31 | 2016-01-31 | Hand operations suitable for survey among relative density test and get maximum dry density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620097456.9U CN205333464U (en) | 2016-01-31 | 2016-01-31 | Hand operations suitable for survey among relative density test and get maximum dry density |
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| Publication Number | Publication Date |
|---|---|
| CN205333464U true CN205333464U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620097456.9U Withdrawn - After Issue CN205333464U (en) | 2016-01-31 | 2016-01-31 | Hand operations suitable for survey among relative density test and get maximum dry density |
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| CN (1) | CN205333464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527191A (en) * | 2016-01-31 | 2016-04-27 | 中国科学院武汉岩土力学研究所 | Manual device for measuring maximum dry density in relative density tests |
-
2016
- 2016-01-31 CN CN201620097456.9U patent/CN205333464U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527191A (en) * | 2016-01-31 | 2016-04-27 | 中国科学院武汉岩土力学研究所 | Manual device for measuring maximum dry density in relative density tests |
| CN105527191B (en) * | 2016-01-31 | 2018-07-17 | 中国科学院武汉岩土力学研究所 | A kind of hand gear measuring maximum dry density suitable for relative density test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160622 Effective date of abandoning: 20180717 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160622 Effective date of abandoning: 20180717 |