CN112196264A - Template reinforcing apparatus - Google Patents
Template reinforcing apparatus Download PDFInfo
- Publication number
- CN112196264A CN112196264A CN202011065344.2A CN202011065344A CN112196264A CN 112196264 A CN112196264 A CN 112196264A CN 202011065344 A CN202011065344 A CN 202011065344A CN 112196264 A CN112196264 A CN 112196264A
- Authority
- CN
- China
- Prior art keywords
- locking
- self
- pull rod
- piece
- locking member
- 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.)
- Pending
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Classifications
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- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
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- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/075—Tying means, the tensional elements of which are fastened or tensioned by other means
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- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/075—Tying means, the tensional elements of which are fastened or tensioned by other means
- E04G17/0755—Tying means, the tensional elements of which are fastened or tensioned by other means the element consisting of several parts
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- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/075—Tying means, the tensional elements of which are fastened or tensioned by other means
- E04G17/0755—Tying means, the tensional elements of which are fastened or tensioned by other means the element consisting of several parts
- E04G17/0757—Tying means, the tensional elements of which are fastened or tensioned by other means the element consisting of several parts fully recoverable
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention relates to a template reinforcing device, which comprises a pull rod and a locking mechanism, wherein the locking mechanism at least comprises a first self-locking piece, at least one end of the pull rod is provided with a plurality of clamping teeth, the first self-locking piece is arranged at one end of the pull rod, which is provided with the clamping teeth, the first self-locking piece comprises a fixing piece and a first locking piece, the fixing piece is provided with a through hole, the pull rod penetrates through the through hole, the fixing piece can move along the axial direction of the pull rod, one end of the first locking piece is hinged with the fixing piece in a torsion mode, the other end of the first locking piece is provided with a clamping head matched with the clamping teeth for use, the fixing piece is provided with a limiting piece used for limiting the rotation of the first locking piece, one end. The invention can realize the self-locking of the pull rod and the first self-locking piece, has good locking effect, is not easy to loosen, can effectively prevent the mold from being exploded, and is easy to disassemble.
Description
Technical Field
The invention belongs to the technical field of construction tools, and particularly relates to a template reinforcing device.
Background
At present, in the cast-in-place concrete construction of buildings, an external wall cast-in-place node usually uses an external template as an external template and a split template as an internal template, a steel split screw is generally used for template reinforcement, the template needs to be fixed by a through-wall split screw, and then concrete is poured, so that the method has the following problems: the first manufacturing screw has large steel consumption, and the concrete cannot be taken out and needs to be cut after being solidified in the later period, so that the appearance is influenced and the resource waste is large; the second post-pouring concrete needs to be vibrated, and the split bolt is also vibrated in the vibrating process, so that the nut is separated, and the template is expanded and leaks slurry; the demand of third split bolt is bigger, needs the manual nut of twisting of workman to accomplish fixedly in the installation, and later stage also needs manual to go to unscrew, and this kind of method wastes time and energy, and the elasticity of twisting in addition can lead to the template unevenness to cause the uneven unevenness of quality to lead to doing over again. These problems all can seriously influence the construction progress, and waste time and energy, can increase extra cost, so need a neotype technique to solve this problem promptly today, this is the important prerequisite that improves post-cast concrete efficiency and quality.
In summary, it is desirable to provide a template reinforcing apparatus that is self-locking, convenient to detach, and good in locking effect, and can effectively reduce labor intensity and improve work efficiency.
Disclosure of Invention
The template reinforcing device provided by the invention is self-locking, convenient to disassemble and good in locking effect, and can effectively reduce the labor intensity and improve the working efficiency.
The above purpose is realized by the following technical scheme: a template reinforcing device comprises a pull rod and a locking mechanism, wherein the locking mechanism at least comprises a first self-locking piece, at least one end of the pull rod is provided with a plurality of latch teeth, the first self-locking piece is arranged at the end of the pull rod provided with the latch teeth, the first self-locking piece comprises a fixing piece and a first locking piece, the fixing piece is provided with a through hole, the pull rod penetrates through the through hole, the fixing piece can move along the axial direction of the pull rod, one end of the first locking piece is hinged with the fixing piece in a torsion mode, the other end of the first locking piece is provided with a clamping head matched with the clamping teeth for use, be equipped with on the mounting and be used for the restriction first retaining member pivoted locating part, first retaining member with the one end that the mounting is articulated is used for leaning on the locating part the dop is used for the card to go into in the latch in order to realize first lock solid from latch fitting and pull rod.
In the application process, the pull rod penetrates through the template, when the self-locking piece is arranged at only one end of the pull rod, the other end of the pull rod is provided with the fixing end for limiting, the fixing end and the first self-locking piece are both positioned at the outer side of the template, the pull rod penetrates through the fixing piece, the first locking piece is hinged with the fixing piece in a torsion mode, the fixing piece is pushed to enable the fixing piece to move close to the template along the axial direction of the pull rod, after the pull rod is moved to a preset position, the clamping head at one end of the first locking piece is clamped into the clamping teeth, the other. The self-locking mechanism can realize the self-locking of the pull rod and the first self-locking piece, the clamping force of the self-locking piece is increased along with the increase of the pulling force, and meanwhile, the locking effect is good, the looseness is not easy to occur, and the mold explosion can be effectively prevented; meanwhile, the device is easy to disassemble, when the concrete is initially set, the fixing piece is rotated to rotate the chuck out of the clamping teeth, and then the pull rod is pulled out.
The further technical scheme is that one end of the first locking piece is hinged to the fixing piece through a hinge shaft, a torsion spring is sleeved on the hinge shaft, and two torsion bars of the torsion spring are abutted to the fixing piece and the first locking piece respectively. Therefore, the first locking piece is hinged with the fixed piece through the hinge shaft by the torsion spring in a torsion mode.
The further technical scheme is that the limiting part is a limiting protrusion, the first locking part is provided with a tongue and groove, and the limiting protrusion is clamped into the tongue and groove. So set up, spacing protruding card is gone into the tongue-and-groove and can be supported the one end of first locking piece, guarantees the locking effect.
A further technical scheme is, first from the latch fitting still includes the second retaining member, first retaining member and second retaining member are located respectively the upper and lower both sides of pull rod, the upper and lower both sides of pull rod all are equipped with the latch, the left and right sides of pull rod is the smooth surface, the second retaining member is unanimous with the structure of first retaining member. According to the arrangement, on one hand, the upper side and the lower side of the pull rod are locked through the locking parts, the stress of the pull rod is more uniform, the first locking part and the second locking part can effectively play a role in buffering vibration in the vibration process, particularly in the up-and-down vibration process, the locking effect is effectively ensured, and the phenomenon that the reinforcing device fails and explodes due to the fact that a chuck and a latch are possibly separated due to vibration in the vibration process of concrete is prevented; on the other hand, the left and right surfaces of the pull rod are smooth surfaces, and the clamping teeth on the upper and lower surfaces are in uniform transition with the smooth surfaces on the left and right surfaces, so that the clamping head and the clamping teeth are separated when the fixing piece is rotated, and the pull rod is convenient to disassemble.
The further technical scheme is that the fixing piece is provided with a connecting seat, the hinge shaft is fixed on the connecting seat, and the first self-locking piece is hinged to the connecting seat.
The connecting seat comprises two triangular plates which are oppositely arranged, and two ends of the hinge shaft are respectively connected with the two triangular plates.
A further technical scheme is, locking mechanism still includes that the second is from the latch fitting, the both ends of pull rod all are equipped with the latch, the second is in from the latch fitting setting the first one end from the latch fitting is kept away from to the pull rod, the second from the latch fitting with first structure from the latch fitting is unanimous. So set up, the both ends of pull rod all are equipped with from the latch fitting, and the lock solid of latch fitting and pull rod can all be realized at both ends, is convenient for adjust.
The further technical scheme is that one side of the fixing piece is connected with the first locking piece, and the other side of the fixing piece is provided with an accommodating clamping groove. When the template broad, can use the fixed effect of stupefied (adopt the steel pipe during the construction usually) assurance template of back of the body usually, so set up, the holding draw-in groove is used for blocking the stupefied of back of the body, and the atress of template reinforcement system is more reasonable.
A further technical scheme is that a waterproof strip is sleeved on the pull rod and arranged between the first self-locking piece and the second self-locking piece. So set up, the pull rod is taken out from the concrete when being favorable to the form removal after the concrete shaping.
Compared with the prior art, the self-locking type locking device disclosed by the invention is locked by adopting a self-locking mode, is simple and convenient to construct, high in installation efficiency, simple to manufacture and low in cost; in addition, the whole stress performance is good in the application process, the connection reliability is high, the disassembly is simple and convenient, the device can be used repeatedly, and materials are saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic front view of a formwork reinforcing apparatus according to an embodiment of the present invention;
fig. 2 is a partial structural view of a formwork reinforcing apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic front view of the form reinforcement apparatus of FIG. 2;
FIG. 4 is an exploded view of the form reinforcement apparatus of FIG. 2;
FIG. 5 is a perspective schematic view of the form reinforcement apparatus of FIG. 2;
FIG. 6 is a schematic view of the locking force of the form reinforcing apparatus shown in FIG. 2;
FIG. 7 is a schematic illustration of the form reinforcement apparatus of FIG. 2 in a disassembled state;
fig. 8 is a schematic front view of a formwork reinforcing apparatus according to another embodiment of the present invention.
In the figure:
1 pull rod 2 waterproof strip 3 latch 4 fixing part
5 hinge shaft 6 torsion spring 7 first self-locking piece 8 second self-locking piece
9 first locking piece 10 second locking piece 11 limiting convex 12 tongue-and-groove
13 triangular plate 14 torsion bar 15 perforating hole 16 chuck
17 accommodating clamping groove
Detailed Description
The present invention will now be described in detail with reference to the drawings, which are given by way of illustration and explanation only and should not be construed to limit the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
The embodiment of the invention is as follows, referring to fig. 1 to 5, a formwork reinforcing device comprises a pull rod 1 and a locking mechanism, wherein the locking mechanism at least comprises a first self-locking piece 7, at least one end of the pull rod 1 is provided with a plurality of latch teeth 3, the first self-locking piece 7 is arranged at one end of the pull rod 1 provided with the latch teeth 3, the first self-locking piece 7 comprises a fixing piece 4 and a first locking piece 9, the fixing piece 4 is provided with a through hole 15, the pull rod 1 penetrates through the through hole 15, the fixing piece 4 can move along the axial direction of the pull rod 1, one end of the first locking piece 9 is hinged with the fixing piece 4 in a torsion manner, the other end of the first locking piece is provided with a clamping head 16 matched with the latch teeth 3 for use, and the fixing piece 4 is provided with a limiting piece; the first locking piece 9 and one end of the fixing piece 4 hinged to each other are used for abutting against the limiting piece, and the clamping head 16 is used for being clamped into the clamping teeth 3 to achieve locking of the first self-locking piece 7 and the pull rod 1.
Preferably, the first locking member 9 is torsionally hinged with the fixed member 4 through a hinge shaft 5 by a torsion spring 6, specifically, one end of the first locking member 9 is hinged with the fixed member 4 through the hinge shaft 5, the torsion spring 6 is sleeved on the hinge shaft 5, and two torsion bars 14 of the torsion spring 6 respectively abut against the fixed member 4 and the first locking member 9.
In the application process of the invention, as shown in fig. 4-7, a pull rod 1 penetrates through a template, when only one end of the pull rod 1 is provided with a self-locking piece, the other end is provided with a fixed end for limiting, the fixed end and a first self-locking piece 7 are both positioned at the outer side of the template, the pull rod 1 penetrates through a fixing piece 4, a torsion spring 6 is utilized to realize torsion hinge of a first locking piece 9 and the fixing piece 4 through a hinge shaft 5, the fixing piece 4 is pushed to move close to the template along the axial direction of the pull rod 1, after the preset position is moved, a clamping head 16 at one end of the first locking piece 9 is clamped into a clamping tooth 3, and the other end abuts against the limiting piece, so that the. The self-locking mechanism can realize the self-locking of the pull rod 1 and the first self-locking piece 7, the clamping force of the self-locking piece is increased along with the increase of the pulling force, and meanwhile, the locking effect is good, the looseness is not easy to occur, and the mold explosion can be effectively prevented; meanwhile, the device is easy to disassemble, when the concrete is initially set, the clamping head 16 can be rotated out of the clamping teeth 3 by rotating the fixing piece 4, and then the pull rod 1 is pulled out.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 3 to 5, the limiting member is a limiting protrusion 11, the first fastening member 9 is provided with a tongue-and-groove 12, and the limiting protrusion 11 is used for being clamped into the tongue-and-groove 12. With the arrangement, the limiting protrusion 11 is clamped into the tongue-and-groove 12 to abut against one end of the first locking piece 9, so that the locking effect is ensured.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 2 to 5, the first self-locking element 7 further includes a second locking element 10, the first locking element 9 and the second locking element 10 are respectively located at the upper side and the lower side of the pull rod 1, the upper side and the lower side of the pull rod 1 are both provided with the latch 3, the left side and the right side of the pull rod 1 are smooth surfaces, and the second locking element 10 and the first locking element 9 have the same structure. Due to the arrangement, on one hand, the upper side and the lower side of the pull rod 1 are locked through the locking parts, the stress of the pull rod 1 is more uniform, the first locking part 9 and the second locking part 10 can effectively play a role in buffering vibration in the vibration process, particularly in the up-and-down vibration process, the locking effect is effectively ensured, and the phenomenon that the clamping head 16 and the clamping teeth 3 are separated possibly due to vibration in the vibration process of concrete to cause failure of the reinforcing device and explode is prevented; on the other hand, the left and right surfaces of the pull rod 1 are smooth surfaces, and the latch 3 on the upper and lower surfaces are in uniform transition with the smooth surfaces on the left and right surfaces, so that the chuck 16 and the latch 3 are separated when the fixing piece 4 is rotated, and the disassembly of the invention is convenient.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 2 to 4, the fixing member 4 is provided with a connecting seat, the hinge shaft 5 is fixed on the connecting seat, and the first self-locking member 7 is hinged to the connecting seat.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 2 to 4, the connecting base includes two triangular plates 13 disposed oppositely, and two ends of the hinge shaft 5 are respectively connected to the two triangular plates 13.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1 and 8, the locking mechanism further includes a second self-locking element 8, the two ends of the pull rod 1 are both provided with the latch 3, the second self-locking element 8 is disposed at one end of the pull rod 1 far away from the first self-locking element 7, and the second self-locking element 8 and the first self-locking element 7 have the same structure. So set up, the both ends of pull rod 1 all are equipped with from the locking part, and the lock solid of locking part and pull rod 1 can all be realized at both ends, is convenient for adjust.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 8, one side of the fixing member 4 is connected to the first locking member 9, and the other side is provided with a receiving slot 17. When the template broad, can use the fixed effect of stupefied (adopt the steel pipe during the construction usually) assurance template of back of the body usually, so set up, holding draw-in groove 17 is used for blocking the stupefied of back of the body, and the atress of template reinforcing system is more reasonable.
On the basis of the above embodiment, in another embodiment of the present invention, as shown in fig. 1, a waterproof strip 2 is sleeved on the pull rod 1, and the waterproof strip 2 is disposed between the first self-locking piece 7 and the second self-locking piece 8. So set up, pull rod 1 takes out from the concrete when being favorable to form removal after the concrete shaping.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A template reinforcing device comprises a pull rod and a locking mechanism, and is characterized in that the locking mechanism at least comprises a first self-locking piece, at least one end of the pull rod is provided with a plurality of clamping teeth, the first self-locking piece is arranged at the end, provided with the clamping teeth, of the pull rod, the first self-locking piece comprises a fixing piece and a first locking piece, the fixing piece is provided with a through hole, the pull rod penetrates through the through hole, the fixing piece can move along the axial direction of the pull rod, one end of the first locking piece is hinged with the fixing piece in a torsion mode, the other end of the first locking piece is provided with a clamping head matched with the clamping teeth for use, and the fixing piece is provided with a limiting piece used for; the first locking piece and the one end of the fixing piece in a hinged mode are used for abutting against the limiting piece, the clamping head is used for being clamped into the clamping teeth to achieve locking of the first self-locking piece and the pull rod.
2. The form panel reinforcement apparatus of claim 1, wherein the first retaining member is hinged to the fixed member by a hinge shaft, and a torsion spring is sleeved on the hinge shaft, and two torsion bars of the torsion spring respectively abut against the fixed member and the first retaining member.
3. The formwork reinforcing device according to claim 1, wherein the limiting member is a limiting protrusion, the first locking member is provided with a tongue and groove, and the limiting protrusion is used for being clamped into the tongue and groove.
4. The formwork reinforcing apparatus as claimed in claim 1, wherein the first self-locking member further comprises a second locking member, the first locking member and the second locking member are respectively located at upper and lower sides of the pull rod, the upper and lower surfaces of the pull rod are both provided with latches, the left and right surfaces of the pull rod are smooth surfaces, and the second locking member is consistent with the first locking member in structure.
5. The formwork reinforcing apparatus as claimed in claim 4, wherein the fixing member is provided with a connecting seat, the hinge shaft is fixed to the connecting seat, and the first self-locking member is hinged to the connecting seat.
6. The formwork reinforcing apparatus as claimed in claim 5, wherein the connecting base comprises two opposing triangular plates, and both ends of the hinge shaft are connected to the two triangular plates, respectively.
7. The formwork reinforcing device according to any one of claims 1 to 6, wherein the locking mechanism further comprises a second self-locking member, both ends of the pull rod are provided with latch teeth, the second self-locking member is arranged at one end of the pull rod far away from the first self-locking member, and the second self-locking member is consistent with the first self-locking member in structure.
8. The form reinforcement device of claim 7, wherein the fastener is coupled to the first fastener on one side and has a receiving slot on the other side.
9. The formwork reinforcing apparatus of claim 7, wherein a waterproof strip is sleeved on the tie bar, and the waterproof strip is disposed between the first self-locking member and the second self-locking member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011065344.2A CN112196264A (en) | 2020-09-30 | 2020-09-30 | Template reinforcing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011065344.2A CN112196264A (en) | 2020-09-30 | 2020-09-30 | Template reinforcing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112196264A true CN112196264A (en) | 2021-01-08 |
Family
ID=74013630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011065344.2A Pending CN112196264A (en) | 2020-09-30 | 2020-09-30 | Template reinforcing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112196264A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833267A (en) * | 2021-10-18 | 2021-12-24 | 中国建筑第八工程局有限公司 | Novel template reinforcing counter-pull rod and using method thereof |
| CN114811255A (en) * | 2021-04-25 | 2022-07-29 | 四川大唐国际甘孜水电开发有限公司 | Pipeline mouth sealing device for pre-buried pipeline |
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| CN103410315A (en) * | 2013-08-13 | 2013-11-27 | 中建三局第一建设工程有限责任公司 | Self-locking formwork reinforcing device |
| EP2685028A2 (en) * | 2012-07-09 | 2014-01-15 | Stanislaw Pargiela | Method for production of shuttering tie rod and shuttering tie rod |
| CN105672654A (en) * | 2016-04-15 | 2016-06-15 | 聂平 | Building formwork fixture |
| KR20170100829A (en) * | 2016-02-26 | 2017-09-05 | 서경선 | Top of the spacing member dies |
| CN207110470U (en) * | 2017-07-24 | 2018-03-16 | 中建八局第四建设有限公司 | A kind of general step fastener |
| CN211045745U (en) * | 2019-12-13 | 2020-07-17 | 浦江县上嘉铜业有限公司 | Copper bar |
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2020
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|---|---|---|---|---|
| EP2685028A2 (en) * | 2012-07-09 | 2014-01-15 | Stanislaw Pargiela | Method for production of shuttering tie rod and shuttering tie rod |
| CN103410315A (en) * | 2013-08-13 | 2013-11-27 | 中建三局第一建设工程有限责任公司 | Self-locking formwork reinforcing device |
| KR20170100829A (en) * | 2016-02-26 | 2017-09-05 | 서경선 | Top of the spacing member dies |
| CN105672654A (en) * | 2016-04-15 | 2016-06-15 | 聂平 | Building formwork fixture |
| CN207110470U (en) * | 2017-07-24 | 2018-03-16 | 中建八局第四建设有限公司 | A kind of general step fastener |
| CN211045745U (en) * | 2019-12-13 | 2020-07-17 | 浦江县上嘉铜业有限公司 | Copper bar |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811255A (en) * | 2021-04-25 | 2022-07-29 | 四川大唐国际甘孜水电开发有限公司 | Pipeline mouth sealing device for pre-buried pipeline |
| CN114811255B (en) * | 2021-04-25 | 2024-05-24 | 四川大唐国际甘孜水电开发有限公司 | Pipeline port sealing device for embedded pipeline |
| CN113833267A (en) * | 2021-10-18 | 2021-12-24 | 中国建筑第八工程局有限公司 | Novel template reinforcing counter-pull rod and using method thereof |
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Application publication date: 20210108 |