CN203738964U - Device for levelling end face of concrete cylinder test piece - Google Patents
Device for levelling end face of concrete cylinder test piece Download PDFInfo
- Publication number
- CN203738964U CN203738964U CN201420119251.7U CN201420119251U CN203738964U CN 203738964 U CN203738964 U CN 203738964U CN 201420119251 U CN201420119251 U CN 201420119251U CN 203738964 U CN203738964 U CN 203738964U
- Authority
- CN
- China
- Prior art keywords
- levelling
- lid
- central axis
- test specimen
- face
- 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
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a device for levelling the end face of a concrete cylinder test piece. The device comprises a levelling cover, a circular through hole is formed in the levelling cover, and the vertical distance from the central axis of the circular through hole to the central axis of the levelling cover is one fifth to one third of the outer diameter of the levelling cover. A conical funnel is concentrically arranged over the circular through hole. A circular-arc-shaped positioning part is arranged on the lower surface of the levelling cover, and the vertical distance from the inner edge of the positioning part to the central axis of the levelling cover is one half of the outer diameter of the opening end face of a concrete cylinder test die. The device is concise in overall structure and low in production cost. The design of the circular through hole and the conical funnel enables cement paste to be added conveniently, bubbles can also be better removed, and the end face of a levelling layer is very flat and is perpendicular to the longitudinal axis of the concrete cylinder test piece. The design of the positioning part enables positioning of the levelling cover and the concrete cylindrical testing die to be achieved conveniently, operation is convenient, and the levelling effect is improved.
Description
Technical field
The utility model relates to leveling unit field, especially, relates to a kind of device for the levelling of concrete cylindrical test specimen end face.
Background technology
National standard " mechanical performance of concrete test method standard " (GB/T50081-2002) appendix A is pointed out: in the manufacturing process of concrete cylindrical test specimen, when dividing after 3 layers of cast concrete jolt ramming, concrete upper surface is slightly lower than die trial end face 1～2mm.The end face screed-coat processing method of test specimen is: when concrete has after some strength, removing upper surface laitance, and suck surface water with dry cloth, spreads the cement paste of same proportioning before form removal, covers equably at die trial top with pressing plate.The thickness of screed-coat cement paste will be tried one's best thin and perpendicular with the longitudinal axis of test specimen; In order to prevent that pressing plate and cement are by cementation, solid thin paper on pad below pressing plate; End face after leveling should be perpendicular with the longitudinal axis of test specimen; The flatness tolerance of end face should be not more than 0.1mm.
The levelling technology providing in above-mentioned standard is not to facilitate very much in actual mechanical process: generally, larger for the same proportioning pulp flowage of screed-coat, in the time that test specimen is positioned on irregular ground, cement paste can be to a lower side flow; Even if adopt the glass plate of the upper thin paper of pad to control, be also difficult to avoid form bubble on surface, thereby cause the out-of-flatness of test specimen upper surface, directly affect concrete cylindrical test specimen compressive strength test result.
Therefore, designing the device that a kind of structure is simplified, easy to use and levelling is effective has great importance.
Utility model content
The leveling unit for cylinder test specimen end face that provides a kind of structure to simplify, easy to use and levelling is effective is provided the utility model object, and concrete technical scheme is as follows:
For a device for concrete cylindrical test specimen end face levelling, comprise that thickness is the levelling lid of 2-5mm;
Cross section when described levelling lid uses on horizontal plane is circle, which is provided with the manhole that diameter is 8-12mm, the central axis of described manhole to the vertical range of the central axis of described levelling lid be described levelling lid external diameter 1/5th to 1/3rd;
Directly over described manhole, be provided with one heart conical funnel, on the upper surface that is arranged on bottom described levelling lid of described conical funnel; The height of described conical funnel is 20-40mm, and doubly, the 1.5-3.0 of the diameter that its internal diameter is topmost described manhole doubly for the 1.0-1.2 of the diameter that its internal diameter is bottom described manhole;
The lower surface of described levelling lid is provided with the positioning element that thickness is the circular arc of 2-3mm, the height of described positioning element is 5-8mm, the inward flange of described positioning element to the vertical range of the central axis of described levelling lid be the open end of concrete circular cylindricality die trial external diameter 1/2nd.
Preferred in above technical scheme, the height of described positioning element is 6mm, and its length is 1/8th to 1/2nd of the described levelling length that covers described positioning element present position circular arc.
Preferred in above technical scheme, the length of described positioning element is 1/4th of the described levelling length that covers its present position circular arc.
Preferred in above technical scheme, the height of described conical funnel is 30mm, and its internal diameter is bottom 1.0 times of described manhole diameter, and its internal diameter is topmost 3.0 times of described manhole diameter.
Preferred in above technical scheme, the central axis of described manhole to the vertical range of the central axis of described levelling lid be described levelling lid external diameter 1/4th.
In order to reach better technique effect, on the upper surface of described levelling lid, be also provided with handheld component, described handheld component and described conical funnel are oppositely arranged, and the central axis of described handheld component to the minimum range at the edge of described levelling lid be described levelling lid external diameter 1/6th to 1/3rd.
Preferred in above technical scheme, described handheld component be shaped as spherical or mushroom-shaped, and its central axis to the minimum range at the edge of described levelling lid be described levelling lid external diameter 1/4th.
Preferred in above technical scheme, the material of described levelling lid is transparent hard plastic board.
The utlity model has following beneficial effect:
(1) device for the levelling of concrete cylindrical test specimen end face of the present utility model comprises levelling lid, and levelling covers and is provided with positioning element, manhole and conical funnel, and overall structure is simplified, and production cost is low; The design of manhole and conical funnel is convenient to add the cement paste of screed-coat, bubble can be eliminated again simultaneously, and make in screed-coat not only without bubble but also can make its surface reach good flatness, and perpendicular with the longitudinal axis of concrete cylindrical test specimen; The location between levelling lid and the die trial of concrete circular cylindricality is convenient in the design of positioning element, and not only convenient operation but also can improve precision, improves levelling effect.
(2) height of positioning element and the size design of length in the utility model, both had aesthetic, can play again good locating effect simultaneously.
(3) height of conical funnel in the utility model, internal diameter bottom and the size Selection of internal diameter topmost, be convenient to add screed-coat only to starch, and be convenient to bubble to eliminate, and improves levelling effect.
(4) in the utility model, the central axis of manhole, to the design of the distance of the central axis of levelling lid, is convenient to after the clean slurry of screed-coat pours into spread equably, improves the quality of screed-coat.
(5) in the utility model, levelling covers on surface and is also provided with handheld component, is convenient to move or opens levelling lid, handled easily; The shape of levelling lid adopts spherical or mushroom-shaped, and structure is attractive in appearance, makes user in use not hinder hand simultaneously, safe.
(6) in the utility model, the material of levelling lid is transparent hard plastic board, adopts transparent material, is convenient to observe the state in levelling process, improves levelling effect.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the overall structure schematic diagram in use of the device for the levelling of concrete cylindrical test specimen end face of the utility model preferred embodiment 1;
Fig. 2 is the structural representation of levelling lid in Fig. 1;
Fig. 3 is another angle structural representation of levelling lid in Fig. 1;
Fig. 4 is that the A of Fig. 3 is to view.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can limit and cover according to claim is implemented.
Embodiment 1:
Structural representation when device for the levelling of concrete cylindrical test specimen end face of the present utility model and concrete circular cylindricality die trial 11 are used in combination refers to Fig. 1.
Described concrete circular cylindricality die trial 11 is the cylinder die trial of an end opening other end sealing, its inner diameter d is 100-200mm, be generally 100mm, 150mm, tri-kinds of sizes of 200mm, it is highly 2 times of left and right of internal diameter, and the internal diameter of described concrete circular cylindricality die trial 11 is identical with the diameter of produced concrete cylindrical test specimen; Described levelling lid 12 is arranged on the opening part of described concrete circular cylindricality die trial 11.
The structural representation of the device for the levelling of concrete cylindrical test specimen end face of the present utility model refers to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, specifically comprise that thickness is the levelling lid 12 of 2-5mm, cross section when described levelling lid 12 uses on horizontal plane is circle, which is provided with diameter is the manhole 121 of 8-12mm, the central axis of described manhole 121 to the vertical range d1 of the central axis of described levelling lid 12 be described levelling lid 12 external diameter 1/5th to 1/3rd, preferably 1/4th, be convenient to after the clean slurry of screed-coat pours into spread equably, make screed-coat even, improve levelling effect.
Directly over described manhole 121, be provided with one heart conical funnel 122, on the upper surface that is arranged on bottom described levelling lid 12 of described conical funnel 122, the height h1 of described conical funnel 122 is 20-40mm, preferably 30mm, the 1.0-1.2 that its inner diameter d 2 is bottom described manhole 121 diameters doubly, preferably 1.0 times, the 1.5-3.0 that its inner diameter d 3 is topmost described manhole 121 diameters doubly, preferably 3.0 times, being convenient to the clean slurry of screed-coat pours into from conical funnel and manhole, bubble in screed-coat can be eliminated again simultaneously, improve levelling effect.
The lower surface of described levelling lid 12 is provided with the positioning element 123 of the circular arc that thickness d 4 is 2-3mm, and the height h of described positioning element 123 is 5-8mm, preferably 6mm; Its length is 1/8th to 1/2nd of the described levelling length that covers described positioning element present position circular arc, preferably 1/4th; The inward flange of described positioning element 123 to the vertical range of the central axis of described levelling lid 12 be the open end of concrete circular cylindricality die trial external diameter 1/2nd, the location between levelling lid and the die trial of concrete circular cylindricality is convenient in the design of positioning element, not only convenient operation but also can improve precision, improves levelling effect.
On the upper surface of described levelling lid 12, be also provided with handheld component 124, described handheld component 124 is oppositely arranged with described conical funnel 122, and described handheld component 124 to the minimum range d5 at the edge of described levelling lid 12 be described levelling lid 12 external diameter 1/6th to 1/3rd, preferably 1/4th, the design of handheld component, be convenient to mobile or selection levelling lid, handled easily; Described handheld component 124 be shaped as spherical or mushroom-shaped, structure is attractive in appearance, makes user in use not hinder hand simultaneously, safe.
The material of described levelling lid 12 is transparent hard plastic board, adopts transparent material, is convenient to observe whole levelling process, improves levelling effect.
When device for the levelling of concrete cylindrical test specimen end face of the present utility model carries out levelling, concrete operations are as follows: put the oil slightly at the lower surface of levelling lid 12 (1), place it on the open end of concrete circular cylindricality die trial 11, and make levelling lid 12 and die trial close contact; (2) cement paste of making screed-coat is flow on the upper surface of concrete circular cylindricality test specimen of moulding in die trial 11 through manhole by conical funnel, and observe situation by transparent levelling lid; (3), after injecting a certain amount of cement paste, in order to eliminate bubble, can suitably rotate levelling lid by positioning element, or knock gently levelling lid, so that clean slurry covers the upper surface of whole concrete cylindrical test specimen equably; (4) when cement paste fills up after test specimen end face completely, continue to exert pressure a moment, then along continuous straight runs drags and takes off levelling lid, levelling end-of-job gently toward a side.Applying the device for the levelling of concrete cylindrical test specimen end face of the present utility model, to carry out cylinder test specimen end face after leveling very smooth, and the longitudinal axis that can ensure screed-coat and concrete cylindrical test specimen is perpendicular, easy and simple to handle, greatly improve levelling effect, practical.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. for a device for concrete cylindrical test specimen end face levelling, it is characterized in that: comprise that thickness is the levelling lid (12) of 2-5mm;
Cross section when described levelling lid (12) uses on horizontal plane is circle, which is provided with the manhole that diameter is 8-12mm (121), the central axis of described manhole (121) to the vertical range (d1) of the central axis of described levelling lid (12) be described levelling lid (12) external diameter 1/5th to 1/3rd;
Directly over described manhole (121), be provided with one heart conical funnel (122), on the upper surface that is arranged on bottom described levelling lid (12) of described conical funnel (122); The height (h1) of described conical funnel (122) is 20-40mm, and doubly, the 1.5-3.0 that its internal diameter (d3) is topmost described manhole (121) diameter doubly for the 1.0-1.2 that its internal diameter (d2) is bottom described manhole (121) diameter;
The lower surface of described levelling lid (12) is provided with the positioning element (123) of the circular arc that thickness (d4) is 2-3mm, the height (h) of described positioning element (123) is 5-8mm, the inward flange of described positioning element (123) to the vertical range of the central axis of described levelling lid (12) be concrete circular cylindricality die trial open end external diameter 1/2nd.
2. the device for the levelling of concrete cylindrical test specimen end face according to claim 1, it is characterized in that: the height (h) of described positioning element (123) is 6mm, its length be the above positioning element of described levelling lid (12) (123) present position circular arc length 1/8th to 1/2nd.
3. the device for the levelling of concrete cylindrical test specimen end face according to claim 2, is characterized in that: the length of described positioning element (123) be upper its present position circular arc of described levelling lid (12) length 1/4th.
4. the device for the levelling of concrete cylindrical test specimen end face according to claim 1, it is characterized in that: the height (h1) of described conical funnel (122) is 30mm, its internal diameter (d2) is bottom 1.0 times of described manhole (121) diameter, and its internal diameter (d3) is topmost 3.0 times of described manhole (121) diameter.
5. the device for the levelling of concrete cylindrical test specimen end face according to claim 1, is characterized in that: 1/4th of the external diameter that the central axis of described manhole (121) is described levelling lid (12) to the vertical range (d1) of the central axis of described levelling lid (12).
6. according to the device for the levelling of concrete cylindrical test specimen end face described in claim 1-5 any one, it is characterized in that: on the upper surface of described levelling lid (12), be also provided with handheld component (124), described handheld component (124) and described conical funnel (122) are oppositely arranged, and the central axis of described handheld component (124) to the minimum range (d5) at the edge of described levelling lid (12) be described levelling lid (12) external diameter 1/6th to 1/3rd.
7. the device for the levelling of concrete cylindrical test specimen end face according to claim 6, it is characterized in that: described handheld component (124) be shaped as spherical or mushroom-shaped, and its central axis to the minimum range (d5) at the edge of described levelling lid (12) be described levelling lid (12) external diameter 1/4th.
8. the device for the levelling of concrete cylindrical test specimen end face according to claim 7, is characterized in that: the material of described levelling lid (12) is transparent hard plastic board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119251.7U CN203738964U (en) | 2014-03-17 | 2014-03-17 | Device for levelling end face of concrete cylinder test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119251.7U CN203738964U (en) | 2014-03-17 | 2014-03-17 | Device for levelling end face of concrete cylinder test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203738964U true CN203738964U (en) | 2014-07-30 |
Family
ID=51338825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420119251.7U Expired - Fee Related CN203738964U (en) | 2014-03-17 | 2014-03-17 | Device for levelling end face of concrete cylinder test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203738964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525537A (en) * | 2016-12-05 | 2017-03-22 | 河海大学 | Concrete core sample end surface filling device and use method thereof |
-
2014
- 2014-03-17 CN CN201420119251.7U patent/CN203738964U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525537A (en) * | 2016-12-05 | 2017-03-22 | 河海大学 | Concrete core sample end surface filling device and use method thereof |
| CN106525537B (en) * | 2016-12-05 | 2019-04-30 | 河海大学 | Concrete core sample end face filling-in device and its application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203738964U (en) | Device for levelling end face of concrete cylinder test piece | |
| CN207189931U (en) | A kind of mould of convenient extraction gypsum bellows | |
| CN205374137U (en) | Preparation of calculus test film piece is with strickleing device off | |
| CN204247312U (en) | The broken cylinder of a kind of medicinal material crushing device | |
| CN203064485U (en) | Quick drying rubber sprinkling can | |
| CN106724937A (en) | A kind of special filter of soya-bean milk | |
| CN204353295U (en) | A kind of automatic oil spout hole punched device | |
| CN203585354U (en) | Sealing structure of high-pressure injection needle valve hole | |
| CN206718136U (en) | A kind of convenient water absorber for Clay article making | |
| CN206746907U (en) | A kind of white device of street trees | |
| CN205852591U (en) | Easy adjustable inclined plane briquetting fixture | |
| CN205329723U (en) | Inspection shaft well utensil mounting structure | |
| CN205333376U (en) | System appearance ware suitable for indoor geotechnique is concretied and direct shear test | |
| CN204018503U (en) | A kind of thin material punching bounce-proof enters block structure | |
| CN202704138U (en) | Ceramic bottle plug | |
| CN202922726U (en) | Forming die for drain cutting former | |
| CN204369610U (en) | A kind of pillow of the oil suction with latch closure bag | |
| CN211680804U (en) | Rubber ring full-automatic PIN pressing machine | |
| CN204076615U (en) | A kind of adapted to injection system | |
| CN204164400U (en) | Plunger valve | |
| CN204307443U (en) | Sewage filter device | |
| CN201744206U (en) | Environment-friendly filter | |
| CN204093318U (en) | A kind of water-distributing device of ultrafiltration apparatus | |
| CN206987382U (en) | A kind of Portable air-pressure type template release agent brush-coating device | |
| CN202478696U (en) | Filtering element device of filtering machine special for polishing powder production |
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 |
Granted publication date: 20140730 Termination date: 20150317 |
|
| EXPY | Termination of patent right or utility model |