CN207036602U - A kind of servicing unit for being used to determine concrete mix apparent density - Google Patents
A kind of servicing unit for being used to determine concrete mix apparent density Download PDFInfo
- Publication number
- CN207036602U CN207036602U CN201720841146.8U CN201720841146U CN207036602U CN 207036602 U CN207036602 U CN 207036602U CN 201720841146 U CN201720841146 U CN 201720841146U CN 207036602 U CN207036602 U CN 207036602U
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- Prior art keywords
- apparent density
- concrete mix
- servicing unit
- annular
- circular plate
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Abstract
The utility model provides a kind of servicing unit for being used to determine concrete mix apparent density, the vertical pressure strip of center annular that diameter including internal diameter and apparent density bucket matches, the vertical baffle plate of peripheral annular, the outward-dipping inclination Circular Plate being angularly connected between the vertical pressure strip of the center annular and the vertical baffle plate of peripheral annular, the bottom for tilting Circular Plate is symmetrically hinged the support bar being provided with for clamping apparent density bucket periphery wall by resilient mounting, telescopic annular rubber ring is additionally provided between the vertical pressure strip of described center annular and the contact surface of apparent density bucket.The utility model has the characteristics of simple structure, easy to operate, and eliminates complex steps caused by caused waste and cleaning apparent density bucket bucket wall when striking off any excess concrete mixture, ensure that the accuracy of final result of the test.
Description
Technical field
The utility model belongs to concrete properties test experiments field, is specifically that one kind is used to determine concrete mix table
See the servicing unit of density.
Background technology
The experiment of concrete mix apparent density is as one of normal concrete basic performance determination experiment, by extensive
Using.There are the 5L containers applied to measure concrete mix apparent density at present, according to《Normal concrete mix physical performance tries
Test method standard》(GB50080-2016), add in a reservoir after concrete mix and vibration compacting, it is necessary to scrape off surface
Unnecessary concrete mix.But during striking off, unnecessary concrete mix can depend on and remain in container
Outer surface.If being not added with clearing up, can have an impact to final weighed quality, and then the standard of apparent density result can be largely effected on
True property.But the concrete mix for clearing up container outer surface adds the loss of manpower and materials so that apparent density experiment
Process becomes more complicated.Therefore, it is badly in need of one kind now to hold when determining apparent density and strike off concrete mix
Servicing unit and its application method.
Utility model content
The utility model content is in view of the above-mentioned problems existing in the prior art, there is provided one kind is used to determine concrete mixing
The servicing unit of thing apparent density.
Servicing unit of the present utility model is achieved through the following technical solutions：
A kind of servicing unit for being used to determine concrete mix apparent density, include the diameter of internal diameter and apparent density bucket
The vertical pressure strip of center annular that matches, the vertical baffle plate of peripheral annular, outward-dipping angularly it is connected to the center
Annular vertical inclination Circular Plate between pressure strip and the vertical baffle plate of peripheral annular, the bottom for tilting Circular Plate pass through resilience
Device is symmetrically hinged the support bar being provided with for clamping apparent density bucket periphery wall, the vertical pressure strip of described center annular
Telescopic annular rubber ring is additionally provided between the contact surface of apparent density bucket.
Further, described support bar is door shape, and the bottom of the inclination Circular Plate is hinged on by two resilient mountings
Portion.
Further, described support bar is T-shaped, and the bottom of the inclination Circular Plate is hinged on by a resilient mounting
Portion.
Further, described support bar is I-shaped to be hinged on the inclination Circular Plate by two resilient mountings
Bottom.
Further, described support bar and apparent density bucket periphery wall contact site are curved.
Further, the radian of the radian of the contact site and apparent density bucket periphery wall matches.
Further, the inclination Circular Plate and angle folded by the vertical pressure strip of center annular are 45 °~75 °.
Further, the vertical pressure strip of described center annular, the vertical baffle plate of peripheral annular, inclination Circular Plate, support bar
Material be metal.
The utility model has the characteristics of simple structure, easy to operate, and eliminates and strike off any excess concrete mixture
When it is caused waste and cleaning apparent density bucket bucket wall caused by complex steps, ensure that the accurate of final result of the test
Property.
Brief description of the drawings
Fig. 1 is the top view of the servicing unit of the utility model embodiment one.
Fig. 2 is the upward view of the servicing unit of the utility model embodiment one.
Fig. 3 is the supporting bar structure schematic diagram of the utility model embodiment two.
Fig. 4 is the supporting bar structure schematic diagram of the utility model embodiment three.
Fig. 5 is placed in schematic diagram when on apparent density bucket for the servicing unit of the utility model embodiment one.
In figure：1st, the vertical pressure strip of center annular, 2, tilt Circular Plate, 3, the vertical baffle plate of peripheral annular, 4, resilient mounting,
5th, support bar, 6, rubber ring.
Embodiment
Purpose of utility model of the present utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings,
Embodiment can not repeat one by one herein, but therefore embodiment of the present utility model is not defined in following examples.
Embodiment one
As shown in Figure 1 to Figure 2, it is a kind of to be used to determining the servicing unit of concrete mix apparent density, including internal diameter with
The vertical pressure strip 1 of center annular that the diameter of apparent density bucket matches, the vertical baffle plate 3 of peripheral annular, outward-dipping certain angle
The inclination Circular Plate 2 being connected between the vertical pressure strip 1 of the center annular and the vertical baffle plate 3 of peripheral annular degree, it is described to incline
The bottom of oblique Circular Plate 2 is symmetrically hinged the support bar being provided with for clamping apparent density bucket periphery wall by resilient mounting 4
5, it is additionally provided with telescopic annular rubber ring between the vertical pressure strip 1 of described center annular and the contact surface of apparent density bucket
6。
Described support bar 5 is door shape, by two resilient mountings 4 be hinged on it is described inclination Circular Plate 2 bottom, twice
The centre distance for playing device 4 is 130mm.Described support bar 5 and apparent density bucket periphery wall contact site are curved, meanwhile, institute
The radian for stating the radian and apparent density bucket periphery wall of contact site matches, and to increase contact area, improves the steadiness of clamping.
When without using when, about support bar 5 can be compressed by resilient mounting 4 and shown in Fig. 1 and Fig. 2
The state of closure, resilient mounting 4 generally comprise hinges and torsionspring.
In the present embodiment, the size after the vertical pressure strip 1 of center annular deploys is (wide for 596mm (length) × 20mm
Degree) × 2mm (thickness).
The circular diameter (internal diameter) that the vertical pressure strip 1 of center annular is surrounded is 189mm.
Size after the inclination Circular Plate 2 is deployed is 973mm (the outer length of side) × 596mm (the interior length of side) × 60mm (width)
× 2mm (thickness).
The inclination Circular Plate 2 is 75 ° with the acute angle folded by the vertical pressure strip 1 of center annular.
Size after the vertical baffle plate 3 of peripheral annular deploys is (thick for 973mm (length) × 40mm (width) × 2mm
Degree).
A diameter of 5mm of the support bar 5, total length 380mm, wherein support bar 5 contact with bucket wall when in use
Part is in arc line shaped.The material of the servicing unit is metal.
The rubber ring 6 can stretch without destroying within the specific limits, depending on its size is by the retractility of rubber.
Embodiment two
As described in Figure 3, the present embodiment and the difference of embodiment 1 are：Described support bar 5 is T-shaped, passes through a resilience
Device 4 is hinged on the bottom of the inclination Circular Plate 2, simple in construction, easy for installation.
Embodiment three
As described in Figure 4, the present embodiment and the difference of embodiment 1 are：Described support bar 5 is I-shaped, passes through two
Resilient mounting 4 is hinged on the bottom of the inclination Circular Plate 2.
Example IV
A kind of method for determining concrete mix apparent density, based on the servicing unit as described in embodiment one, bag
Include step：
1) the quality m of apparent density bucket is weighed1；
2) rubber ring 6 that can be stretched is enclosed at apparent density bucket outer barrel wall mouth；
3) two support bars 5 of servicing unit are pulled open, moves down servicing unit, make the vertical pressure strip of its center annular
1 upper surface is concordant with apparent density barrel edge mouth upper surface；
4) support bar 5 is unclamped, it is clamped apparent density bucket outer wall in the presence of spring Hui Li, prevents the servicing unit
Drop；
5) (plug and pound concrete mix disposable (machine vibrates) or manually) fill apparent density bucket at twice, make slightly
Have more than needed, consolidated using method manually or mechanically；
6) the unnecessary concrete mix of apparent density barrel edge mouth is scraped in servicing unit after consolidating or vibrate, makes to mix
Native mixture surfacing is coagulated, the concrete mix being stripped off can glide with Circular Plate 2 is tilted, and vertical by peripheral annular
Baffle plate 3 blocks and then pulled open support bar 5, slowly lifts servicing unit, it is separated with apparent density bucket；
7) remove rubber ring 6 and weigh the quality m of apparent density bucket and concrete mix2, the table of concrete mix
Density is seen to be calculated as follows：
ρ=1000 (m2-m1)/V
In formula：
Apparent density (the kg/m of ρ -- concrete mix3),
V-- apparent density bucket volumes (L),
m2-- apparent density bucket and concrete mixing amount of substance (kg),
m1-- apparent density bucket quality (kg).
Specifically, in the step 4),
When use, which manually plugs and pounds method, to be consolidated, by two layers of loading apparent density bucket of concrete mix point, every layer of use
Tamper equably plugs and pounds at least 25 times from edge to center, every layer plugged and pounded after with wooden rubber hammer along container outer wall percussion 5~10
Under, if the second layer plug and pound during concrete mix is heavy drops below bung, concrete mix should be added at any time；
When being consolidated using mechanical vibration method, concrete mix is once filled to apparent density bucket together with the auxiliary
Device shakes at least 10s on a vibration table, as concrete mix is sunk to less than bung in vibration processes, should add coagulation at any time
Native mixture.
Above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and is not
Restriction to embodiment of the present utility model.For those of ordinary skill in the field, on the basis of described above
On can also make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.
All made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., should be included in this reality
Within new scope of the claims.
Claims (8)
- A kind of 1. servicing unit for being used to determine concrete mix apparent density, it is characterised in that:Including internal diameter with it is apparent close The vertical pressure strip of center annular (1), the vertical baffle plate of peripheral annular (3), the outward-dipping certain angle that the diameter of degree bucket matches Ground is connected to the inclination Circular Plate (2) between the vertical pressure strip of the center annular (1) and the vertical baffle plate of peripheral annular (3), institute State the bottom for tilting Circular Plate (2) and be symmetrically hinged to be provided with by resilient mounting (4) and be used to clamp apparent density bucket periphery wall Support bar (5), be additionally provided between the vertical pressure strip of described center annular (1) and the contact surface of apparent density bucket scalable Annular rubber ring (6).
- 2. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exist In:Described support bar (5) is door shape, and the bottom of the inclination Circular Plate (2) is hinged on by two resilient mountings (4).
- 3. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exist In:Described support bar (5) is T-shaped, and the bottom of the inclination Circular Plate (2) is hinged on by a resilient mounting (4).
- 4. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exist In:Described support bar (5) is I-shaped, and the bottom of the inclination Circular Plate (2) is hinged on by two resilient mountings (4).
- A kind of 5. auxiliary dress for being used to determine concrete mix apparent density according to any one of claim 1 to 4 Put, it is characterised in that:Described support bar (5) and apparent density bucket periphery wall contact site are curved.
- 6. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 5, its feature exist In:The radian of the radian of the contact site and apparent density bucket periphery wall matches.
- 7. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exist In:The inclination Circular Plate (2) is 45 °~75 ° with angle folded by the vertical pressure strip of center annular.
- 8. a kind of servicing unit for being used to determine concrete mix apparent density according to claim 1, its feature exist In:The vertical pressure strip of described center annular (1), the vertical baffle plate of peripheral annular (3), tilt Circular Plate (2), support bar (5) Material is metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720841146.8U CN207036602U (en) | 2017-07-11 | 2017-07-11 | A kind of servicing unit for being used to determine concrete mix apparent density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720841146.8U CN207036602U (en) | 2017-07-11 | 2017-07-11 | A kind of servicing unit for being used to determine concrete mix apparent density |
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| Publication Number | Publication Date |
|---|---|
| CN207036602U true CN207036602U (en) | 2018-02-23 |
Family
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|---|---|---|---|
| CN201720841146.8U Expired - Fee Related CN207036602U (en) | 2017-07-11 | 2017-07-11 | A kind of servicing unit for being used to determine concrete mix apparent density |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290246A (en) * | 2017-07-11 | 2017-10-24 | 华南理工大学 | A kind of servicing unit and method for being used to determine concrete mix apparent density |
-
2017
- 2017-07-11 CN CN201720841146.8U patent/CN207036602U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290246A (en) * | 2017-07-11 | 2017-10-24 | 华南理工大学 | A kind of servicing unit and method for being used to determine concrete mix apparent density |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20210711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |