CN107939043B - From accurate support filler stone preformed hole mould of taking locate function - Google Patents
From accurate support filler stone preformed hole mould of taking locate function Download PDFInfo
- Publication number
- CN107939043B CN107939043B CN201711156416.2A CN201711156416A CN107939043B CN 107939043 B CN107939043 B CN 107939043B CN 201711156416 A CN201711156416 A CN 201711156416A CN 107939043 B CN107939043 B CN 107939043B
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- Prior art keywords
- arc plate
- mounting sleeve
- connecting piece
- movable connecting
- plate
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- 239000004575 stone Substances 0.000 title abstract description 7
- 239000000945 filler Substances 0.000 title abstract description 5
- 238000009434 installation Methods 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000005056 compaction Methods 0.000 abstract 1
- 230000008602 contraction Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention discloses a precise support filler stone preformed hole die with a positioning function, which comprises a die body and a positioning pin shaft used for determining a hole site center point, wherein the die body comprises a mounting sleeve through which the positioning pin shaft penetrates, an outer arc plate and an inner arc plate which are sequentially arranged around the mounting sleeve to form a surrounding space, the distances between the outer arc plate and the inner arc plate and between the outer arc plate and the mounting sleeve are equal, an outer movable connecting piece and an inner movable connecting piece are respectively arranged between the outer arc plate and the inner arc plate and between the inner arc plate and the mounting sleeve, the length of the inner movable connecting piece is larger than that of the outer movable connecting piece so as to realize that the radial stroke of the inner arc plate is larger than that of the outer arc plate when the arc plates simultaneously move along the radial direction of the mounting sleeve, and the adjacent outer arc plate and the adjacent inner arc plate are at least partially overlapped so as to prop the inner arc plate against the outer arc plate. The invention has the functions of contraction and compaction, has reasonable and compact overall structure, is simple to operate, can be reused to avoid waste, and has stronger practicability.
Description
Technical Field
The invention relates to a precise support filler stone preformed hole die with a positioning function.
Background
At present, in building construction, particularly for concrete pouring operations supporting the bedding stone, it is often necessary to reserve mounting holes for subsequent development of other engineering operations. In the prior art, the traditional preformed hole forming method is to firstly fix the PVC pipe or the iron sheet pipe one by utilizing an iron wire to determine the position of each preformed hole, then pour concrete and chisel holes to finish pre-burying work, but because the positioning precision is lower by manual operation, the PVC pipe or the iron sheet pipe cannot be reused to cause waste, and the waste chipped in the holes is difficult to clean, thereby causing difficulty for subsequent construction, or the traditional preformed hole forming method also adopts a form of a combined die, the concrete principle is that the mutual matching between a template and a fastener is mainly utilized, but because the assembly of the template needs various assembly components including a flat template, an arc template and a baffle, the early preparation work is overlong, not only the time cost is increased, but also the construction progress is influenced.
Disclosure of Invention
The invention aims at: the accurate supporting bolster preformed hole die with the positioning function is provided.
The technical scheme of the invention is as follows: the utility model provides a from accurate supporting pad stone preformed hole mould of taking locate function, includes the mould body and is used for confirming the locating pin axle of hole site central point, the mould body is including supplying locating pin axle runs through the installation sleeve that establishes and centers on the installation sleeve sets gradually in order to form the outer arc board and the inner arc board of enclosing the space, the distance between outer arc board and the inner arc board and the installation sleeve equals, be equipped with outer swing joint spare, interior swing joint spare between outer arc board and the installation sleeve respectively, the length of interior swing joint spare is greater than the length of outer swing joint spare, interior swing joint spare with contained angle between the installation sleeve is less than outer swing joint spare with contained angle between the installation sleeve is in order to realize outer arc board, inner arc board follow simultaneously when installation sleeve longitudinal displacement is h, and the radial stroke of inner arc board is greater than the radial stroke of outer arc board when the distance between outer arc board and the installation sleeve is the farthest, the inner arc board has adjacent motion the outer arc board has and continues to overlap the outer arc board and is formed by an outer arc board and is formed the outer arc board and is then firm and is formed to the outer arc board.
Further, in the invention, the outer arc plate is provided with a convex part for connecting the outer movable connecting piece, and the distance between the convex part and the mounting sleeve is equal to the distance between the inner arc plate and the mounting sleeve.
Furthermore, the length of the positioning pin shaft is larger than that of the mounting sleeve, the end part of the positioning pin shaft is provided with a positioning tip part for realizing quick positioning, and the other end of the positioning pin shaft is provided with a level bubble for checking verticality, so that the die has a positioning function and is favorable for improving construction precision.
Furthermore, the enclosing space formed by the outer arc plate and the inner arc plate is provided with the upper end face in an open state, the upper end face is covered with the shielding cover plate for preventing sundries from falling into the space, and the shielding cover plate is provided with the mounting holes for the positioning pin shaft and the mounting sleeve to sequentially penetrate through, so that dust sundries are effectively prevented from falling into the mounting sleeve, and further a later cleaning link is avoided.
Furthermore, the shielding cover plate is an annular iron plate, so that the service life of the shielding cover plate is prolonged.
Furthermore, in the invention, the first lug plate and the second lug plate which are connected with the movable connecting piece are respectively arranged on the mounting sleeve and each arc plate and correspond to each movable connecting piece, and the first lug plate, the second lug plate and the movable connecting piece are respectively connected and fixed by a fastener.
Furthermore, a limiting member is arranged between the positioning pin shaft and the mounting sleeve, a first limiting hole is formed in the positioning pin shaft in a penetrating manner, a first through hole and a second through hole which correspond to the first limiting hole are formed in the mounting sleeve to form a second limiting hole pair, and the limiting member sequentially penetrates through the first through hole, the first limiting hole and the second through hole to realize fixed connection between the positioning pin shaft and the mounting sleeve, so that stability and reliability of the whole die structure are guaranteed.
Furthermore, the invention also comprises a shielding cover plate, wherein the shielding cover plate is provided with mounting holes for the positioning pin shafts and the mounting sleeves to sequentially penetrate, and the first limiting holes and the second limiting holes are formed above the shielding cover plate so as to limit and fix the shielding cover plate by using the limiting members, thereby effectively preventing the shielding cover plate from shaking up and down.
Further, in the invention, the limiting member is a reinforcing bolt.
Furthermore, the outer side surfaces of the outer arc plate and the inner arc plate are coated with release agents so as to be taken out quickly.
Compared with the prior art, the invention has the following advantages: the invention provides a technical scheme of a precise support filler stone preformed hole die with a positioning function, which comprises a die body and a positioning pin shaft used for determining a hole site center point, wherein the die body comprises a mounting sleeve, an outer arc plate, an inner arc plate and a movable connecting piece, the distances from the outer arc plate to the mounting sleeve are equal, the inner arc plate is firstly contracted inwards and then contracted inwards due to the fact that the length of the inner movable connecting piece is larger than that of the outer movable connecting piece, the included angle between the inner movable connecting piece and the mounting sleeve can be simply calculated to be smaller than that between the outer movable connecting piece and the mounting sleeve, when the inner arc plate and the outer arc plate move along the radial direction of the mounting sleeve at the same time, the radial stroke of the inner arc plate is larger than that of the outer arc plate, therefore, when the die is mounted, the inner arc plate has a tendency of continuing to move outwards, the inner arc plate is extruded outwards, a firm enclosing space is formed, and when the mounting sleeve is taken out upwards, the inner arc plate is firstly contracted inwards and then contracted inwards, the unique die design is compact, the whole structure is reasonable and compact, meanwhile, the repeated utilization can be avoided, and the practicability is strong.
Drawings
The invention is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention (wherein the boss is not shown);
FIG. 3 is a side cross-sectional view of the present invention;
FIG. 4 is a top view of the present invention (wherein the protrusions are not shown);
FIG. 5 is a simplified view of the outer arc plate of the present invention shown in a downward motion relative to the mounting sleeve;
FIG. 6 is a simplified view of the inner arc plate of the present invention as it moves downwardly relative to the mounting sleeve;
wherein: 1. a die body; 11. an outer arc plate; 12. an inner arc plate; 13. a mounting sleeve; 131. a first ear plate; 132. a second limiting hole pair; 2. positioning pin shafts; 21. positioning the tip; 22. a first limiting hole; 3. a second ear plate; 4. a shielding cover plate; 41. a mounting hole; 5. and a limit member.
Detailed Description
Examples:
referring to fig. 1 to 6, which are taken together with a specific embodiment of a die with a positioning function and a precise support pad prepared hole, firstly, referring to fig. 1 to 4, the die comprises a die body 1 and a positioning pin shaft 2 for determining a hole site center point, the die body 1 comprises a mounting sleeve 13 for penetrating the positioning pin shaft 2, the length of the positioning pin shaft 2 is greater than that of the mounting sleeve 13, in addition, a positioning tip 21 for realizing quick positioning is arranged at the bottom of the positioning pin shaft 2, a level bubble for detecting verticality is arranged at the top of the positioning pin shaft, so that the die is taken with the positioning function, the construction precision is facilitated to be improved, further, a limiting member 5 is arranged between the positioning pin shaft 2 and the mounting sleeve 13, a first limiting hole 22 is penetrated through the positioning pin shaft 2, a second limiting hole pair 132 is formed by the mounting sleeve 13, the limiting member 5 sequentially penetrates through the first through hole 22 and the second through hole 22 to realize the fixing connection between the positioning pin shaft 2 and the mounting sleeve 13, and the fixing stability of the die is enhanced, and the fixing stability of the die is guaranteed; the die body 1 further comprises an outer arc plate 11 and an inner arc plate 12 which are sequentially arranged around the mounting sleeve 13 to form an enclosing space, as shown in fig. 4, the outer arc plate 11 and the inner arc plate 12 are respectively provided with two pieces, the heights, the thicknesses and the arc angles of the outer arc plate 11 and the inner arc plate 12 are the same, the equal distances between the outer arc plate 11, the inner arc plate 12 and the mounting sleeve 13 are equal, not shown, the outer arc plate 11 is provided with a convex part for connecting the outer movable connecting piece, the distance between the convex part and the mounting sleeve 13 is equal to the distance between the inner arc plate 12 and the mounting sleeve 13, in addition, the height of the mounting sleeve 13 is larger than the heights of the outer arc plate 11 and the inner arc plate 12, the outer side surfaces of the outer arc plate 11 and the inner arc plate 12 are coated with a release agent so as to be taken out rapidly, in addition, as shown in fig. 1, the enclosing space formed by the outer arc plate 11 and the inner arc plate 12 has an upper end surface in an open state, the upper end surface is covered with a shielding cover plate 4 for preventing sundries from falling into, the shielding cover plate 4 is an annular iron plate so as to prolong the service period, and the shielding cover plate 4 is provided with a mounting hole 41 for the positioning pin shaft 2 and the mounting sleeve 13 to sequentially pass through so as to achieve the purpose of effectively preventing dust sundries from falling into the mounting sleeve 13 and omitting a later cleaning link, and further, the first limiting hole 22 and the second limiting hole pair 132 are arranged above the shielding cover plate 4 so as to limit and fix the shielding cover plate 4 by using the limiting member 5 and avoid the shielding cover plate 4 from shaking up and down; secondly, specifically referring to fig. 1, four external movable connectors and four internal movable connectors are respectively disposed between the external arc plate 11, the internal arc plate 12 and the mounting sleeve 13, the length of each internal movable connector is greater than that of each external movable connector so as to achieve that the radial travel of the internal arc plate 12 is greater than that of the external arc plate 11 when the arc plates move radially along the mounting sleeve 13, the adjacent external arc plate 11 and internal arc plate 12 are at least partially overlapped so as to tightly press the internal arc plate 12 against the external arc plate 11, further, a first lug plate 131 and a second lug plate 3 for connecting the movable connectors are respectively disposed on the mounting sleeve 13 and each arc plate corresponding to each movable connector, the first lug plate 131, the second lug plate 3 and the movable connectors are respectively connected and fixed by fasteners, and the fasteners are bolts.
Specifically, with reference to fig. 5 and 6, the mechanical principle is as follows: as shown are outer arc plates 11 respectivelyThe initial state is the state when the die is installed, wherein the distance between the outer arc plate 11, the inner arc plate 12 and the installation sleeve 13 is S, namely the distance between the convex part on the outer arc plate 11 and the installation sleeve 13 is equal to the distance between the inner arc plate 12 and the installation sleeve 13, and the lengths of the outer movable connecting piece arranged on the convex part and the inner movable connecting piece arranged on the inner arc plate 12 are respectively l 1 、l 2 And l 2 Greater than l 1 The initial included angles between the outer movable connecting piece, the inner movable connecting piece and the mounting sleeve 13 are alpha and beta respectively, the final included angles between the outer movable connecting piece, the inner movable connecting piece and the mounting sleeve 13 are alpha ', beta', the longitudinal displacement of the outer arc plate 11 and the inner arc plate 12 which simultaneously move downwards along the mounting sleeve 13 is h, and the radial travel of the outer arc plate 11 and the inner arc plate 12 which simultaneously move along the radial direction of the mounting sleeve 13 is S respectively 1 、S 2 Then:
from the longitudinal displacement h of the outer arc 11:
similarly, the longitudinal displacement h of the inner arc plate 12 is obtained by:
wherein, because the distances between the outer arc plate 11, the inner arc plate 12 and the mounting sleeve 13 in the initial state are all R, the following can be obtained:
R＝l 1 sinα＝l 2 sinβ
then, comparing the radial travel of the outer arc 11 with that of the inner arc 12, it is possible to obtain:
since r=l 1 sinα＝l 2 sin beta, and l 2 Greater than l 1 The method can obtain: alpha>β，
Then:
during normal use, the setting is performedThe method can obtain: when alpha is>Beta, S 1 <S 2 I.e. when the initial angle between the outer movable connection and the mounting sleeve 13 is greater than the initial angle between the inner movable connection and the mounting sleeve 13, the radial travel of the inner arc plate 12 is greater than the radial travel of the outer arc plate 11.
Therefore, since the length of the inner movable connecting piece is larger than that of the outer movable connecting piece, when the installation is completed, the distance between the outer arc plate 11 and the installation sleeve 13 is farthest, the included angle between the outer movable connecting piece and the installation sleeve 13 is 90 degrees, at this time, the inner arc plate 12 has a tendency to continue to move outwards, and further the outer arc plate 11 is provided with an outward extrusion force so as to form a stable enclosing space, and at this time, the included angle between the inner movable connecting piece and the installation sleeve 13 is smaller than 90 degrees, so that the radial stroke of the inner arc plate 12 is larger than that of the outer arc plate 11.
Comprehensive obtaining, because the outer arc plate 11, the inner arc plate 12 respectively with the outer movable connecting piece of installing sleeve 13 connection, the inclination of interior movable connecting piece is different, when the installation is accomplished, the inner arc plate 12 provides outside extrusion force for outer arc plate 11, when upwards take out installing sleeve 13, inner arc plate 12 at first inwards contracts and then loosens outer arc plate 11 inwards contracts, thereby realize the axle center shrink and the tight function of centrifugation top of arc plate, this kind of unique mould design structure is from taking shrink compact function, overall structure is reasonable compact, and easy operation, can reuse avoid causing extravagant simultaneously, have stronger practicality.
When the embodiment specifically works, the verticality of the positioning pin shaft 2 is checked by using the level bubble after the positioning tip 21 is aligned with the hole site center point of the support cushion reserved hole, the assembled die body 1 is sleeved on the positioning pin shaft 2 through the mounting sleeve 13, the relative positions of the first limiting hole 22 on the positioning pin shaft 2 and the second limiting hole pair 132 on the mounting sleeve 13 are adjusted, the upper end face of the arc plate in an open state is covered by the shielding cover plate 4 after the positioning pin shaft 2 and the mounting sleeve 13 are sequentially sleeved by using the mounting hole 41, at the moment, the limiting member 5 is inserted into the first limiting hole 22 and the second limiting hole pair 132, and then the mounting sleeve 13, the positioning pin shaft 2 and the shielding cover plate 4 are simultaneously limited and fixed, and when the die is taken out, the limiting member 5, the shielding cover plate 4 and the die body 1 are sequentially taken out, and the purpose of quick taking out can be achieved due to the fact that the outer side faces of the arc plate are coated with release agents.
The above embodiments are merely for illustrating the technical concept and features of the present invention, and are not intended to limit the scope of the present invention to those skilled in the art to understand the present invention and implement the same. All modifications made according to the spirit of the main technical proposal of the invention should be covered in the protection scope of the invention.
Claims (10)
1. From accurate supporting bolster preformed hole mould of taking locate function, its characterized in that: the die comprises a die body (1) and a positioning pin shaft (2) for determining a hole site center point, wherein the die body (1) comprises a mounting sleeve (13) for penetrating through the positioning pin shaft (2), and an outer arc plate (11) and an inner arc plate (12) which are sequentially arranged around the mounting sleeve (13) to form a surrounding space, the distances between the outer arc plate (11) and the inner arc plate (12) and the mounting sleeve (13) are equal, an outer movable connecting piece and an inner movable connecting piece are respectively arranged between the outer arc plate (11), the inner arc plate (12) and the mounting sleeve (13), the length of the inner movable connecting piece is larger than the length of the outer movable connecting piece, the included angle between the inner movable connecting piece and the mounting sleeve is smaller than the included angle between the outer movable connecting piece and the mounting sleeve, so that when the longitudinal displacement of the outer arc plate (11) and the inner arc plate (12) along the mounting sleeve (13) is h, the radial stroke of the inner arc plate (12) is larger than that of the outer arc plate (11) is larger than that when the radial stroke of the inner arc plate (12) is in radial motion, and when the inner arc plate (12) is far away from the outer arc plate (11) is arranged, the inner arc plate (12) is far away from the outer arc plate (11), thereby providing an outward extrusion force for the outer arc plate (11) to form a stable enclosing space.
2. The accurate supporting bolster preformed hole mold with positioning function according to claim 1, wherein: the outer arc plate (11) is provided with a convex part for connecting the outer movable connecting piece, and the distance between the convex part and the mounting sleeve (13) is equal to the distance between the inner arc plate (12) and the mounting sleeve (13).
3. The accurate supporting bolster preformed hole mold with positioning function according to claim 1, wherein: the length of the positioning pin shaft (2) is greater than that of the mounting sleeve (13), a positioning tip (21) for realizing quick positioning is arranged at the end part of the positioning pin shaft (2), and a level bubble for checking verticality is arranged at the other end of the positioning pin shaft.
4. The precise support cushion preformed hole mold with positioning function according to claim 3, wherein: the enclosing space formed by the outer arc plate (11) and the inner arc plate (12) is provided with an upper end face in an open state, the upper end face is covered with a shielding cover plate (4) for preventing sundries from falling into, and the shielding cover plate (4) is provided with a mounting hole (41) for the positioning pin shaft (2) and the mounting sleeve (13) to sequentially penetrate through.
5. The accurate supporting bolster preformed hole mold with positioning function according to claim 4, wherein: the shielding cover plate (4) is an annular iron plate.
6. The accurate supporting bolster preformed hole mold with positioning function according to claim 1, wherein: the installation sleeve (13) and each arc plate are respectively provided with a first lug plate (131) and a second lug plate (3) which are connected with the movable connecting piece corresponding to each movable connecting piece, and the first lug plates (131), the second lug plates (3) and the movable connecting pieces are respectively connected and fixed through fasteners.
7. The precise support cushion preformed hole mold with positioning function according to claim 3, wherein: the positioning pin shaft (2) and the mounting sleeve (13) are provided with a limiting member (5), a first limiting hole (22) is formed in the positioning pin shaft (2) in a penetrating mode, the mounting sleeve (13) is provided with a first through hole and a second through hole which correspond to the first limiting hole (22) in position to form a second limiting hole pair (132), and the limiting member (5) sequentially penetrates through the first through hole, the first limiting hole (22) and the second through hole to achieve fixed connection between the positioning pin shaft (2) and the mounting sleeve (13).
8. The precise support cushion preformed hole mold with positioning function according to claim 7, wherein: the novel shielding cover plate is characterized by further comprising a shielding cover plate (4), wherein the shielding cover plate (4) is provided with mounting holes (41) for the positioning pin shafts (2) and the mounting sleeves (13) to sequentially penetrate through, and the first limiting holes (22) and the second limiting hole pairs (132) are respectively arranged above the shielding cover plate (4) so as to utilize the limiting members (5) to limit and fix the shielding cover plate (4).
9. The precise support cushion preformed hole mold with positioning function according to claim 7, wherein: the limiting member (5) is a reinforcing bolt.
10. The accurate supporting bolster preformed hole mold with positioning function according to claim 1, wherein: the outer side surfaces of the outer arc plate (11) and the inner arc plate (12) are coated with release agents so as to be taken out quickly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711156416.2A CN107939043B (en) | 2017-11-20 | 2017-11-20 | From accurate support filler stone preformed hole mould of taking locate function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711156416.2A CN107939043B (en) | 2017-11-20 | 2017-11-20 | From accurate support filler stone preformed hole mould of taking locate function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107939043A CN107939043A (en) | 2018-04-20 |
| CN107939043B true CN107939043B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711156416.2A Active CN107939043B (en) | 2017-11-20 | 2017-11-20 | From accurate support filler stone preformed hole mould of taking locate function |
Country Status (1)
| Country | Link |
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| CN (1) | CN107939043B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1006879A (en) * | 1949-12-07 | 1952-04-28 | Formwork for circular internal section pipe or others | |
| JP2004244979A (en) * | 2003-02-17 | 2004-09-02 | Sekisui House Ltd | Form material for forming through-hole |
| CN105019647A (en) * | 2015-07-30 | 2015-11-04 | 广西建工集团第五建筑工程有限责任公司 | Telescopic sleeve |
| CN107254965A (en) * | 2017-07-28 | 2017-10-17 | 中国三冶集团有限公司 | The reducing fluid pressure type service sleeve and construction method of pipeline construction |
| CN107338956A (en) * | 2017-07-21 | 2017-11-10 | 中建八局第建设有限公司 | A kind of hole to be provided sleeve pipe and its application method |
| CN207499435U (en) * | 2017-11-20 | 2018-06-15 | 中铁四局集团第二工程有限公司 | The accurate support pinner prepared hole die of included positioning function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU73U1 (en) * | 1993-04-23 | 1994-09-25 | Ханин Аркадий Юрьевич | Device for cavity formation in concrete and reinforced concrete structures |
-
2017
- 2017-11-20 CN CN201711156416.2A patent/CN107939043B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1006879A (en) * | 1949-12-07 | 1952-04-28 | Formwork for circular internal section pipe or others | |
| JP2004244979A (en) * | 2003-02-17 | 2004-09-02 | Sekisui House Ltd | Form material for forming through-hole |
| CN105019647A (en) * | 2015-07-30 | 2015-11-04 | 广西建工集团第五建筑工程有限责任公司 | Telescopic sleeve |
| CN107338956A (en) * | 2017-07-21 | 2017-11-10 | 中建八局第建设有限公司 | A kind of hole to be provided sleeve pipe and its application method |
| CN107254965A (en) * | 2017-07-28 | 2017-10-17 | 中国三冶集团有限公司 | The reducing fluid pressure type service sleeve and construction method of pipeline construction |
| CN207499435U (en) * | 2017-11-20 | 2018-06-15 | 中铁四局集团第二工程有限公司 | The accurate support pinner prepared hole die of included positioning function |
Also Published As
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|---|---|
| CN107939043A (en) | 2018-04-20 |
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Effective date of registration: 20230725 Address after: No.96, Wangjiang East Road, Baohe District, Hefei City, Anhui Province, 230041 Applicant after: CHINA TIESIJU CIVIL ENGINEERING GROUP Co.,Ltd. Applicant after: THE SECOND CONSTRUCTION CO., LTD. OF CTCE Group Address before: No.9, litanghe Road, Xiangcheng District, Suzhou City, Jiangsu Province Applicant before: THE SECOND CONSTRUCTION CO., LTD. OF CTCE Group |
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