CN105328771A - Method for manufacturing hollow block in laboratory room, special die and manufacturing method of special die - Google Patents
Method for manufacturing hollow block in laboratory room, special die and manufacturing method of special die Download PDFInfo
- Publication number
- CN105328771A CN105328771A CN201510692290.5A CN201510692290A CN105328771A CN 105328771 A CN105328771 A CN 105328771A CN 201510692290 A CN201510692290 A CN 201510692290A CN 105328771 A CN105328771 A CN 105328771A
- Authority
- CN
- China
- Prior art keywords
- transverse slat
- building
- mould
- plate
- side plate
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
- B28B7/183—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article for building blocks or similar block-shaped objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Sampling And Sample Adjustment (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses a method for manufacturing a hollow block in a laboratory room, a special die and a manufacturing method of the special die. The die for manufacturing the hollow block in the laboratory room comprises a bottom plate, transverse plates and side plates. The side plates and the transverse plates are connected and then mounted on the bottom plate. Inner cylinders are fixed to the bottom plate. A sealing plate is arranged at the top of each inner cylinder. A cavity defined by the side plates, the transverse plates, the bottom plate and the inner cylinders is the same shape as the hollow block. The invention further discloses the manufacturing method of the die and the method for manufacturing the hollow block in the laboratory room. By means of the method for manufacturing the hollow block in the laboratory room, the special die and the manufacturing method of the special die, the hollow block can be manufactured in the laboratory room, the test cost is saved for a brickyard, the die can be removed immediately after pouring, the die is not occupied, the manufacturing cycle is shortened, and material loss is lowered when experiment raw materials are limited; an experimenter can change the size of the die according to the requirements for machining, and flexibility is high; and the compactionness, integrity and smoothness of the hollow block can be guaranteed.
Description
Technical field
The invention belongs to building block and make field, relate in particular to a kind of preparation method of building-block of applicable use for laboratory, also relate to the preparation method of patent mould used by the method and mould.
Background technology
At present, when doing the testing of materials of building block, building block is all make at the brick field of specialty, oneself cannot make in laboratory, brick field production building block is large to the raw material loss of test, so when testing the building block of different mixture ratio, greatly increase the cost of test, and the mould of some brick field can not meet test building blocks size, brings trouble to scientific research and testing.
Summary of the invention
The object of this invention is to provide a kind of laboratory preparation of building-block, particular manufacturing craft and this particular manufacturing craft preparation method, solving current building block is all make at brick field to bring trouble and technical problem to scientific research and testing.
The object of the invention is to realize in the following manner:
The mould of making in laboratory building-block, be made up of base plate, transverse slat and side plate, be arranged on after side plate and transverse slat are interconnected on base plate, base plate is fixed with inner prop, interior column top is provided with sealing plate, and the chamber that side plate, transverse slat, base plate and inner prop surround is identical with the shape of building-block.
Specifically transverse slat of the present invention is two pieces, the first corner brace is welded with outside transverse slat two ends, first corner brace arranges bolt connecting hole, transverse slat and side plate are fixed together through bolt connecting hole by bolt, first corner brace is an angle steel, the side of angle steel is welded on transverse slat, and opposite side arranges bolt connecting hole.
Inner prop of the present invention is welded on base plate.
Side plate and transverse slat are welded with the second corner brace, the second corner brace is provided with bolt hole, side plate and transverse slat are fixed on base plate by bolt passing through bolt hole.
The preparation method of making in laboratory hollow building block die, transverse slat, side plate, base plate, sealing plate and inner prop is produced by size steel plate, inner prop bottom is welded with base plate, side plate and transverse slat install corner brace, side plate and transverse slat are installed through corner brace with bolt, side plate, transverse slat being installed on base plate with bolt through corner brace, sealing plate being fixed to interior column top, polishing flat.
A laboratory preparation for building-block, uses the mould of above-mentioned making in laboratory building-block to make.
The laboratory preparation of above-mentioned building-block, its concrete preparation method is as follows:
Step 1: at inner side brush one deck releasing agent of mould, with preservative film, inner prop is wrapped up, then brush one deck releasing agent on preservative film;
Step 2: the raw material of building-block is stirred by required proportioning, then puts into mould, vibrate fully;
Step 3: after compound vibration compacting, by mold movement to smooth ground;
Step 4: by die flip 180 degree, the bolt of dismantle connecting bottom board and side plate and transverse slat;
Step 5: transverse slat and side plate are maintained static, keeps floor level, when upwards lifting 2-3cm, two cover plates is blocked inner prop from the both sides of base plate respectively, passes, push down cover plate with reinforcing bar between two inner props;
Step 6: continue lift base plate until be separated in cover plate;
Step 7: transverse slat and side plate are separated, building-block completes.
The laboratory preparation of above-mentioned building-block, the mould of step 1 is put on a vibration table by described step 2, is stirred by the raw material of building-block, then puts into mould, vibrate fully by required proportioning.
The laboratory preparation of above-mentioned building-block, described step 5 is passed between two inner props with the reinforcing bar of diameter 6mm length 60cm.
Adopt technique scheme, the present invention has following advantage: at making in laboratory building-block, can save the experimentation cost at brick field, can form removal immediately after having built, do not take mould, shorten fabrication cycle, when testing limited starting material, reduce spillage of material.Experimenter can change die size according to the demand of oneself and process, and flexibility is strong.And the present invention can ensure packing, integrity degree, the smoothness of building-block.
Accompanying drawing explanation
Fig. 1 is the plane of mould transverse slat of the present invention and side plate.
Fig. 2 is the structural representation of mould first corner brace of the present invention.
Fig. 3 is the structural representation of mould second corner brace of the present invention.
Fig. 4 is mold plane schematic diagram of the present invention.
Fig. 5 is mould transverse slat structural representation of the present invention.
Fig. 6 is die side plate structural representation of the present invention.
Fig. 7 is mould inner prop structural representation of the present invention.
Fig. 8 is the structural representation of cover plate of the present invention.
Fig. 9 is base plate bore position figure of the present invention.
Figure 10 is the structural representation of mould of the present invention.
Number in the figure, 1. transverse slat, 2. corner brace, 3. bolt hole, 4. side plate, 5. inner prop, 6. base plate, 7. sealing plate, 8. cover plate.
Detailed description of the invention
As shown in Fig. 1-Fig. 7, Fig. 9 and Figure 10, a kind of mould of making in laboratory building-block, be made up of base plate 6, transverse slat 1 and side plate 4, be arranged on base plate 6 after side plate 4 and transverse slat 1 are interconnected, base plate 6 is fixed with inner prop 5, inner prop 5 top is provided with sealing plate 7, and side plate 4, transverse slat 1, base plate 6 are identical with the shape of building-block with the chamber that inner prop 5 surrounds.
The transverse slat of mould of the present invention is two pieces, is welded with the first corner brace outside transverse slat two ends, and the first corner brace is an angle steel, and the side of angle steel is welded on transverse slat, opposite side is arranged bolt connecting hole 3, and transverse slat and side plate are fixed together through bolt connecting hole by bolt.Side plate and transverse slat are welded with the second corner brace, the second corner brace is provided with bolt hole, side plate and transverse slat are fixed on base plate by bolt passing through bolt hole.
The inner prop of mould of the present invention is welded on base plate.Inner prop is hollow cylinder, and the structure of interior column section also can be the rectangle at each rounding of angle angle.
The base plate 6 of mould of the present invention, transverse slat 1 and side plate 4, be the steel plate cut by size, the thickness of steel plate is 5mm, and steel plate thickness also can select the steel plate of not thickness according to different situations.
The thickness of the corner brace 2 of mould of the present invention is 6mm, if change its thickness will change the position of bolt hole or bolt connecting hole.The sealing plate 7 of mould of the present invention can be the thick steel plate of 3mm, also can need to select different size according to difference.
Secondly, the present invention also discloses the preparation method of the mould of making in laboratory building-block, transverse slat, side plate, base plate, sealing plate and inner prop is produced by size steel plate, inner prop bottom is welded with base plate, side plate and transverse slat install corner brace, through corner brace, side plate and transverse slat is installed with bolt, through corner brace, side plate, transverse slat are being installed on base plate with bolt, sealing plate is fixed to interior column top, polishes flat.Conveniently fast demoulding in addition, this mould is also furnished with two upper cover plates, and two cover plates docking can just be stuck on inner prop, and shape after two cover plates docking is consistent with the shape of building-block.
Finally, the present invention also discloses the method for making in laboratory building-block, and mainly adopt above-mentioned mould to make, concrete steps are as follows:
Step 1: at inner side brush one deck releasing agent of mould, with preservative film, inner prop is wrapped up, then brush one deck releasing agent on preservative film, puts on a vibration table;
Step 2: the raw material of building-block is stirred by required proportioning, then puts into mould, vibrate fully;
Step 3: after compound vibration compacting, by mold movement to smooth ground;
Step 4: by die flip 180 degree, the bolt of dismantle connecting bottom board and side plate and transverse slat;
Step 5: transverse slat and side plate are maintained static, keep floor level, when upwards lifting 2-3cm, two cover plates is blocked inner prop from the both sides of base plate respectively, ensure that two cover plates docking is with after guaranteeing that base is extracted completely, the integrality of building block, passes with the reinforcing bar of diameter 6mm length 60cm, pushes down cover plate between two inner props;
Step 6: continue lift base plate until be separated in cover plate;
Step 7: transverse slat and side plate are separated, building-block completes.
The method of making in laboratory building-block of the present invention, can put mould and put on a vibration table, be placed on other equipment or smooth ground in step 1, as long as can ensure that step 2 can carry out just can smoothly.Also 5 without the reinforcing bar of diameter 6mm length 60cm, can just can as long as the length of reinforcing bar can push down cover plate through the reinforcing bar two inner props in steps.
As shown in Figure 8, the present invention's two cover plates 8, can make of the steel plate that 4mm is thick, also can need to make of the steel plate of different-thickness according to difference.
Now to make the building-block that a piece is of a size of 390mm × 190mm × 190mm, the mould of illustrative experiment room building-block, the preparation method of mould and the laboratory preparation of building-block, according to the method described above, by base plate 6, transverse slat 1, side plate 4, cut by size, this mould is except corner brace 2, sealing plate 7, cover plate 8, and the steel plate thickness of all the other components is 5mm.Make corner brace 2 by Fig. 2, corner brace 2 is welded with transverse slat 1, change its thickness will change bore position if the thickness of corner brace 2 is 6mm.Transverse slat and base plate relevant position are holed, facilitates bolt to connect, make inner prop 5 according to size, end face sealing plate 7 seals, and sealing plate 7 can be the thick steel plate of 3mm, is welded by inner prop 5 with base plate 6.Make two cover plates 8, can make of the steel plate that 4mm is thick, the cross section of each parts of the present invention should keep smooth, if out-of-flatness, be polished flat, seamless after ensureing each several part splicing.Each for mould component bolt passing through bolt hole 3 spliced, whole structure as shown in Figure 10.At the inner surface of transverse slat 1, side plate 4, base plate 6 before assembled, inner prop 5 surface is coated with one deck releasing agent, then respectively two inner props 5 are wound around a circle with preservative film, again at preservative film surface smear releasing agent, then mould is spliced, mould is put on a vibration table, then the mix of building-block is poured in mould, layered vibration.After vibration compacting, mould is carried on smooth ground, turned over turnback, end face is downward, then the bolt that four cycle side plates 4 are connected with base plate 6 with transverse slat 1 is twisted off, now both feet clamp the side plate 4 of mould, both hands catch base plate 6, keep base plate 6 level, vertical ground upwards promotes, when after hoisting depth 2-3cm, two cover plates 8 is inserted respectively docking from both sides and ensure that docking is with after guaranteeing that base is extracted completely, the integrality of building block, block the inner prop 5 on base plate 6, then insert in the middle of two inner props 5 and be about 60cm, cover plate 8 pushed down by the reinforcing bar of diameter about 6mm, continue upwards to promote until be separated with cover plate 8, then the bolt that side plate 4 is connected with transverse slat 1 is twisted off, take away side plate 4 and transverse slat 1, so complete building-block body has just completed.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for a person skilled in the art, and not departing under general idea prerequisite of the present invention, can also make some changes and improvements, these also should be considered as protection scope of the present invention.
Claims (9)
1. the mould of a making in laboratory building-block, be made up of base plate, transverse slat and side plate, it is characterized in that: be arranged on after side plate and transverse slat are interconnected on base plate, base plate is fixed with inner prop, interior column top is provided with sealing plate, and the chamber that side plate, transverse slat, base plate and inner prop surround is identical with the shape of building-block.
2. the mould of making in laboratory building-block according to claim 1, it is characterized in that: described transverse slat is two pieces, the first corner brace is welded with outside transverse slat two ends, first corner brace arranges bolt connecting hole, transverse slat and side plate are fixed together through bolt connecting hole by bolt, first corner brace is an angle steel, and the side of angle steel is welded on transverse slat, and opposite side arranges bolt connecting hole.
3. the mould of making in laboratory building-block according to claim 1, is characterized in that: inner prop is welded on base plate.
4. the mould of making in laboratory building-block according to claim 1, is characterized in that: on side plate and transverse slat, be welded with the second corner brace, the second corner brace is provided with bolt hole, and side plate and transverse slat are fixed on base plate by bolt passing through bolt hole.
5. the preparation method of the mould of the making in laboratory building-block according to any one of claim 1-5, it is characterized in that: produce transverse slat, side plate, base plate, sealing plate and inner prop by size steel plate, inner prop bottom is welded with base plate, side plate and transverse slat install corner brace, side plate and transverse slat are installed through corner brace with bolt, side plate, transverse slat being installed on base plate with bolt through corner brace, sealing plate being fixed to interior column top, polishing flat.
6. a laboratory preparation for building-block, is characterized in that: use the mould of the making in laboratory building-block according to any one of claim 1-5 to make.
7. the laboratory preparation of building-block according to claim 6, is characterized in that: concrete preparation method is as follows:
Step 1: at inner side brush one deck releasing agent of mould, with preservative film, inner prop is wrapped up, then brush one deck releasing agent on preservative film;
Step 2: the raw material of building-block is stirred by required proportioning, then puts into mould, vibrate fully;
Step 3: after compound vibration compacting, by mold movement to smooth ground;
Step 4: by die flip 180 degree, the bolt of dismantle connecting bottom board and side plate and transverse slat;
Step 5: transverse slat and side plate are maintained static, keeps floor level, when upwards lifting 2-3cm, two cover plates is blocked inner prop from the both sides of base plate respectively, passes, push down cover plate with reinforcing bar between two inner props;
Step 6: continue lift base plate until be separated in cover plate;
Step 7: transverse slat and side plate are separated, building-block completes.
8. the laboratory preparation of building-block according to claim 7, is characterized in that: the mould of step 1 is put on a vibration table by described step 2, is stirred by the raw material of building-block, then puts into mould, vibrate fully by required proportioning.
9. the laboratory preparation of building-block according to claim 7, is characterized in that: described step 5 is passed between two inner props with the reinforcing bar of diameter 6mm length 60cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692290.5A CN105328771B (en) | 2015-10-23 | 2015-10-23 | The laboratory preparation and its particular manufacturing craft of building-block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692290.5A CN105328771B (en) | 2015-10-23 | 2015-10-23 | The laboratory preparation and its particular manufacturing craft of building-block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105328771A true CN105328771A (en) | 2016-02-17 |
| CN105328771B CN105328771B (en) | 2018-11-23 |
Family
ID=55279635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510692290.5A Expired - Fee Related CN105328771B (en) | 2015-10-23 | 2015-10-23 | The laboratory preparation and its particular manufacturing craft of building-block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105328771B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305407A (en) * | 2020-02-24 | 2020-06-19 | 华北水利水电大学 | Environment-friendly external wall insulation board for smart community and manufacturing method thereof |
| RU2773898C1 (en) * | 2021-04-29 | 2022-06-14 | Компания Домидо Лимитед | Method for manufacturing a building block |
| CN115366234A (en) * | 2022-08-10 | 2022-11-22 | 济南一建集团有限公司 | Building module production mould that aluminium base material made |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062610A (en) * | 1989-09-28 | 1991-11-05 | Block Systems Inc. | Composite masonry block mold for use in block molding machines |
| CN2100974U (en) * | 1991-02-20 | 1992-04-08 | 扬州机械厂 | Mould for making building block with pattern on surface |
| CN1408674A (en) * | 2002-10-10 | 2003-04-09 | 张树荣 | High strength composite expansion pearlite building material |
| CN2801928Y (en) * | 2005-06-22 | 2006-08-02 | 刘佰华 | Hollow building block decoration brick with color relief |
| CN202318544U (en) * | 2011-11-07 | 2012-07-11 | 长沙学院 | Adjustable wall building block forming mould for test |
| CN104325546A (en) * | 2014-10-24 | 2015-02-04 | 段炼山 | Building block mold and method for pressing and forming building block by using building block mold |
| CN104400888A (en) * | 2014-10-24 | 2015-03-11 | 段炼山 | Building block die and method of carrying out pressing to form building block by utilizing same |
| CN204278194U (en) * | 2014-11-18 | 2015-04-22 | 高唐县成宇机械制造有限公司 | A kind of hollow aerated bricks mould |
| CN205033366U (en) * | 2015-10-23 | 2016-02-17 | 郑州大学 | Mould of hollow building block of laboratory preparation |
-
2015
- 2015-10-23 CN CN201510692290.5A patent/CN105328771B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5062610A (en) * | 1989-09-28 | 1991-11-05 | Block Systems Inc. | Composite masonry block mold for use in block molding machines |
| CN2100974U (en) * | 1991-02-20 | 1992-04-08 | 扬州机械厂 | Mould for making building block with pattern on surface |
| CN1408674A (en) * | 2002-10-10 | 2003-04-09 | 张树荣 | High strength composite expansion pearlite building material |
| CN2801928Y (en) * | 2005-06-22 | 2006-08-02 | 刘佰华 | Hollow building block decoration brick with color relief |
| CN202318544U (en) * | 2011-11-07 | 2012-07-11 | 长沙学院 | Adjustable wall building block forming mould for test |
| CN104325546A (en) * | 2014-10-24 | 2015-02-04 | 段炼山 | Building block mold and method for pressing and forming building block by using building block mold |
| CN104400888A (en) * | 2014-10-24 | 2015-03-11 | 段炼山 | Building block die and method of carrying out pressing to form building block by utilizing same |
| CN204278194U (en) * | 2014-11-18 | 2015-04-22 | 高唐县成宇机械制造有限公司 | A kind of hollow aerated bricks mould |
| CN205033366U (en) * | 2015-10-23 | 2016-02-17 | 郑州大学 | Mould of hollow building block of laboratory preparation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305407A (en) * | 2020-02-24 | 2020-06-19 | 华北水利水电大学 | Environment-friendly external wall insulation board for smart community and manufacturing method thereof |
| CN111305407B (en) * | 2020-02-24 | 2021-11-26 | 华北水利水电大学 | Environment-friendly external wall insulation board for smart community and manufacturing method thereof |
| RU2773898C1 (en) * | 2021-04-29 | 2022-06-14 | Компания Домидо Лимитед | Method for manufacturing a building block |
| CN115366234A (en) * | 2022-08-10 | 2022-11-22 | 济南一建集团有限公司 | Building module production mould that aluminium base material made |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105328771B (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106863552B (en) | Integral forming die for cement prefabricated member by direct extrusion vibration method and processing method thereof | |
| CN106088396A (en) | 3D prints the manufacture method of filled wall | |
| CN105328771A (en) | Method for manufacturing hollow block in laboratory room, special die and manufacturing method of special die | |
| CN103696439A (en) | Immersed tube pouring method | |
| CN204772928U (en) | Cement flower bucket is pour and is used centre form | |
| CN105040731A (en) | Assembled integral type reinforced concrete underground comprehensive pipe gallery and production mold thereof | |
| CN105799055B (en) | A kind of sand aerating armored concrete casting mold | |
| CN205325942U (en) | Piping lane box culvert pouring mold | |
| CN203977667U (en) | Built-in pore-forming combination gypsum core | |
| CN205033366U (en) | Mould of hollow building block of laboratory preparation | |
| CN214110800U (en) | Concrete test block forming die | |
| CN103950103B (en) | Produce the portable assembling die using method of prestressed concrete member | |
| CN211541660U (en) | Prefabricated component forming equipment | |
| JP7548511B2 (en) | How to make concrete blocks | |
| CN107558734B (en) | Building pouring device and pouring method | |
| CN204235672U (en) | Mould built by a kind of cement brick slurry | |
| CN205766736U (en) | Shear wall internal stay is machining tool in batches | |
| CN204898718U (en) | Assemble integral reinforced concrete utility tunnel and production mould thereof | |
| CN203854098U (en) | Movable combined mold for production of prestressed concrete members | |
| CN110788972B (en) | Method for manufacturing multi-curved surface modeling lining die for concrete structure | |
| CN211873816U (en) | Double-layer type prefabricated mold for laminated plate | |
| CN214538886U (en) | Rock-like material test piece mould containing arc-shaped through fracture | |
| CN217168931U (en) | High-stability box girder die jacking device | |
| CN218567372U (en) | Concrete hole measuring device | |
| CN209394978U (en) | A kind of architectural engineering mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20191023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |