CN112196265A - Fixing device for building concrete formwork and using method thereof - Google Patents
Fixing device for building concrete formwork and using method thereof Download PDFInfo
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- CN112196265A CN112196265A CN202010948696.6A CN202010948696A CN112196265A CN 112196265 A CN112196265 A CN 112196265A CN 202010948696 A CN202010948696 A CN 202010948696A CN 112196265 A CN112196265 A CN 112196265A
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- sleeve
- wall
- flange
- extension
- template
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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
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
- E04G17/0655—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts
- E04G17/0657—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning the element consisting of several parts fully recoverable
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to a fixing device for building concrete formworks and a use method thereof, and the fixing device comprises a sleeve, an extension cylinder and a wall pin, wherein the extension cylinder is screwed at two ends of the sleeve, the wall pin is screwed at the outer end of the extension cylinder, the formwork can be reinforced, the distance between opposite formworks is kept, the fixing device is used as an inner tension bar of a concrete member, the fixing part outside the formwork is reduced, the formwork is convenient to fix, the processing and production difficulty of the concrete member with a complex structure is reduced, the formwork is embedded in the concrete member after concrete is poured, the sleeve and the extension cylinder are fixed by concrete, the wall pin can be rotatably assembled and disassembled, after the lower wall pin is disassembled, the combination of the sleeve and the extension cylinder can be used as a hoisting hole, when the wall pin is assembled but not screwed, the wall pin can be used as a hoisting ring, the extension cylinder is flush with the surface of the concrete member, and when the wall pin is screwed, the surface of the wall pin is flush with the surface of, the prefabricated concrete member has no protruding part and is suitable for stacking and transporting the prefabricated concrete member.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a fixing device for a building concrete template and a using method thereof.
Background
The concrete formwork is used for building buildings, and usually adopts wood and bamboo plywood formworks and metal formworks with surfaces coated with adhesive film paper, when the concrete formwork is used for building buildings, a plurality of concrete formworks are spliced into an integrated flat plate, concrete is poured into a gap between the two integrated flat plates for building a building wall, and a plurality of integrated flat plates form a hollow cylinder shape in the middle for building beams or columns and the like.
In general, in the construction of a reinforced concrete structure such as a column, a beam, a wall, etc. in various structures, a formwork is reinforced with reinforcing bars or screws to form an inner cavity, and concrete is injected between the formworks to be constructed, and at the time of concrete injection, a load of the concrete is transferred to the formwork and then the formwork is pushed to bulge outward, so that a wall surface of the building does not meet a design requirement, and the formwork is seriously crushed or deformed.
Disclosure of Invention
In order to solve the problem that the formwork is easy to deform in the pouring process, the invention provides the fixing device for the building concrete formwork and the using method thereof, aiming at reinforcing the formwork and keeping the distance between the opposite formworks, so that the poured concrete member can be smooth in appearance and meet the design requirement.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a fixing device for a building concrete formwork comprises a sleeve, an extension cylinder and a wall pin;
the sleeve is a cylinder with openings at two ends, a plurality of annular rib plates are arranged on the outer wall of the sleeve at intervals along the length direction of the sleeve, the annular rib plates are annular plate bodies, inner rings of the annular rib plates are fixedly connected with the outer wall of the sleeve, a plurality of annular array-shaped axial rib plates are arranged between every two adjacent annular rib plates, one ends of the axial rib plates, facing the axis of the sleeve, are inner ends, the ends, away from the axis of the sleeve, are outer ends, the inner ends of the axial rib plates are fixedly connected with the outer wall of the sleeve, the left and right ends of the axial rib plates are fixedly connected with the surfaces, opposite to the two annular rib plates, of the left and right sides of the axial rib plates, a first internal thread is coaxially arranged;
the two extension cylinders are cylinder bodies with openings at two ends, first counter bores are uniformly distributed on the peripheral walls of the two extension cylinders, first external threads matched with the first internal threads are arranged on the peripheral walls outside the first counter bores of the two extension cylinders, the end parts of the extension cylinders facing the sleeve are inner ends, the end parts of the extension cylinders far away from the sleeve are outer ends, the inner ends of the extension cylinders are screwed into the sleeve, the outer ends of the extension cylinders are positioned outside the sleeve, annular first flanges are arranged at the outer ends of the extension cylinders, the surface diameters of the first flanges facing the sleeve are smaller than the surface diameters of the first flanges far away from the sleeve, the surface centers of the first flanges far away from the sleeve are provided with circular concentric groove bodies, a plurality of clamping grooves are arranged on the surface of the first flange far away from the sleeve outside the groove bodies, each clamping groove is a groove communicated with the groove body, and are arranged in an annular array shape around the groove bodies, a second internal thread is coaxially arranged on the inner wall of each extension cylinder, and the interior of each extension cylinder is connected with a wall pin through the second internal thread;
the wall round pin is provided with the cylinder of second external screw thread for the periphery wall, and the second external screw thread of wall round pin periphery wall matches with the second internal thread, and the inner of wall round pin is packed into in the extension section of thick bamboo soon, and the outer end is located an extension section of thick bamboo outside, and the outer end of wall round pin is provided with the second flange, the second flange matches with the cell body on the first flange and corresponds, is provided with on the surface of second flange to stretch into in the second flange, the opening second counter bore outwards, the second counter bore is the rectangle counter bore.
Further, the length of the sleeve is greater than or equal to the sum of the lengths of the two extension cylinders.
Further, the length of the extension cylinder is greater than or equal to the length of the wall pin.
Furthermore, the depth of each first counter bore is larger than the tooth profile height of each first external thread and smaller than the wall thickness of each extension cylinder.
Furthermore, through holes are uniformly distributed on the axial rib plate and the annular rib plate.
Further, the pitches of the first internal thread and the second internal thread are consistent.
Furthermore, the first internal thread is formed by butt joint of two internal threads with opposite screwing directions at two ends in the sleeve in the center in the sleeve, and the first external threads of the two extension cylinders are respectively matched with the first internal threads at one end of the sleeve where the first external threads are located.
The use method of the fixing device for the building concrete formwork comprises the following steps:
A. connecting two ends of the sleeve with an extension cylinder respectively, and adjusting the extension distance of the outer ends of the two extension cylinders according to the building design requirement, wherein the distance between the outer sides of first flanges of the two extension cylinders is equal to the distance between building templates, the templates are cast-in-place templates, and holes for penetrating wall pins are formed in the middle of the templates;
B. attaching the outer side surface of the first flange of one of the combined sleeve and the two extension cylinders to the inner surface of the template on one side, extending the wall pin from the outside of the template on one side into the extension cylinder facing the template through the template, and clamping the template by the first flange and the second flange;
C. and then attaching the outer side surface of the first flange of the other extension cylinder of the combined sleeve and the two extension cylinders to the inner surface of the template on the other side, penetrating the template from the outside of the template by using the other wall pin to extend into the extension cylinder, clamping the template by the first flange and the second flange, and fixing the two templates.
Furthermore, when the outer side surface of the first flange of the extension cylinder is in contact with the inner surface of the template, an annular sealing gasket extruded on the inner surface of the template is arranged in the groove body of the extension cylinder.
Through the technical scheme, the invention has the beneficial effects that:
the invention can reinforce the formworks, keep the space between the opposite formworks, and keep the formworks from deforming in the concrete pouring process, so that the poured concrete member can be flat in appearance and meet the design requirements.
The invention can be used as an inner lacing wire of a concrete member with a complex structure, is used for controlling the space between the templates, controls the space between the templates in the concrete member, can reduce the fixed parts outside the templates, is convenient for fixing the templates and is beneficial to reducing the building difficulty of the concrete member with the complex structure.
The invention is embedded in the concrete member after production, the sleeve and the extension cylinder are fixed by concrete, the wall pin can be rotatably assembled and disassembled, after the lower wall pin is disassembled, the combination of the sleeve and the extension cylinder can be used as a hoisting hole, and when the wall pin is assembled but not screwed, the wall pin can be used as a hoisting ring, thereby being convenient for hoisting.
The sleeve and the extension cylinder are fixed inside the concrete member, the extension cylinder is flush with the surface of the concrete member, when the wall pin is screwed, the surface of the wall pin is flush with the surface of the concrete member, no protruding part exists, and stacking and transportation are facilitated.
The length of the concrete member can be adjusted by prolonging the screwing depth of the cylinder into the sleeve, and the concrete member is suitable for producing concrete members with different thicknesses and specifications.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional front view of the present invention;
FIG. 4 is a schematic view of the connection of the extension cartridge and wall pin of the present invention;
FIG. 5 is a schematic structural view of the sleeve of the present invention;
FIG. 6 is a schematic view of the construction of an extension cartridge of the present invention;
FIG. 7 is a schematic view of the construction of the wall pin of the present invention;
fig. 8 is a schematic view of the state of use of the present invention.
The reference numbers in the drawings are as follows: the structure comprises a sleeve 1, an extension barrel 2, a wall pin 3, a template 4, a sealing gasket 5, a circumferential rib plate 11, an axial rib plate 12, a through hole 13, a first counter bore 21, a first flange 22, a groove body 23, a clamping groove 24, a second flange 31 and a second counter bore 32.
Detailed Description
The invention is further described with reference to the following figures and detailed description:
it should be noted that directional terms used in the following description such as "front", "back", "left", "right", "up", "down", "bottom" and "top" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 to 8, a fixing device for a construction concrete form includes a sleeve 1, an extension cylinder 2, and a wall pin 3;
the sleeve 1 is a cylinder with openings at two ends, a plurality of annular rib plates 11 are arranged on the outer wall of the sleeve 1 at intervals along the length direction of the sleeve 1, the annular rib plates 11 are annular plate bodies, the inner rings of the annular rib plates 11 are fixedly connected with the outer wall of the sleeve 1, a plurality of annular array-shaped axial rib plates 12 are arranged between every two adjacent annular rib plates 11, one ends of the axial rib plates 12, facing the axis of the sleeve 1, are inner ends, the ends, away from the axis of the sleeve 1, are outer ends, the inner ends of the axial rib plates 12 are fixedly connected with the outer wall of the sleeve 1, the left ends and the right ends of the axial rib plates 12 are fixedly connected with the surfaces, opposite to the two annular rib plates 11, of the left side and the right side of the axial rib plates 12, first internal threads are;
two extension section of thick bamboo 2 are both ends open-ended barrel, the equipartition has first counter bore 21 on two extension section of thick bamboo 2's the periphery wall, the periphery wall outside two extension section of thick bamboo 2's first counter bore 21 all is provided with the first external screw thread that matches and correspond with first internal thread, extension section of thick bamboo 2 is for the inner towards the tip of sleeve 1, the tip of keeping away from sleeve 1 is the outer end, the inner of extension section of thick bamboo 2 is adorned soon in sleeve 1, the outer end is located sleeve 1 outside, the outer end of extension section of thick bamboo 2 is provided with annular first flange 22, the surface diameter of first flange 22 towards sleeve 1 is less than the surface diameter that sleeve 1 was kept away from to first flange 22, the surface center of keeping away from sleeve 1 of first flange 22 is provided with circular shape concentric cell body 23, the outer first flange 22 of extension section of thick bamboo 23 is provided with a plurality of draw-in grooves 24 on the surface of keeping away from sleeve 1, the clamping grooves 24 are arranged around the groove body 23 in an annular array shape, a second internal thread is coaxially arranged on the inner wall of each extension cylinder 2, and the inner part of each extension cylinder 2 is connected with a wall pin 3 through the second internal thread;
The length of the sleeve 1 is more than or equal to the sum of the lengths of the two extension barrels 2.
The length of the extension cylinder 2 is greater than or equal to the length of the wall pin 3.
The depth of the first counter bore 21 is larger than the tooth height of the first external thread and smaller than the wall thickness of the extension cylinder 2.
Through holes 13 are uniformly distributed in the axial rib plates 12 and the annular rib plates 11, the through holes 13 can be used for communicating the axial rib plates 12 with concrete on two sides of the annular rib plates 11, so that the axial rib plates 12 and the annular rib plates 11 are combined with the concrete more firmly, and the exhaust function in the pouring process is achieved.
The thread pitches of the first internal thread and the second internal thread are consistent.
The first internal thread is formed by butt joint of two internal threads with opposite turning directions at two ends in the sleeve 1 in the center in the sleeve 1, and the first external threads of the two extension cylinders are respectively matched with the first internal thread at one end of the sleeve 1 where the first external threads are located.
The use method of the fixing device for the building concrete formwork comprises the following steps:
A. connecting two ends of a sleeve 1 with an extension cylinder 2 respectively, and adjusting the extending distance of the outer ends of the two extension cylinders 2 according to the building design requirement, wherein the distance between the outer sides of first flanges 22 of the two extension cylinders 2 is equal to the distance between building templates 4, the templates 4 are cast-in-place templates, and holes for penetrating through wall pins 3 are formed in the middle of the templates;
B. the outer side surface of the first flange 22 of one extension cylinder 2 of the combined sleeve 1 and the two extension cylinders 2 is attached to the inner surface of the template 4 on one side, one wall pin 3 is used for extending from the outer side of the template 4 on one side through the template 4 into the extension cylinder 2 facing the template 4, and the first flange 22 and the second flange 31 clamp the template 4;
C. then the outer side surface of the first flange 22 of the other extension cylinder 2 in the combined sleeve 1 and the two extension cylinders 2 is attached to the inner surface of the other side template 4, the other wall pin 3 penetrates through the template 4 from the outside of the template 4 and extends into the extension cylinders 2, and the first flange 22 and the second flange 31 clamp the template 4, at the moment, the two templates are fixed;
when the outer side surface of the first flange 22 of the extension cylinder 2 is in contact with the inner surface of the template 4, the groove body 23 of the extension cylinder 2 is internally provided with the annular sealing gasket 5 extruded on the inner surface of the template 4, the sealing gasket 5 is arranged between the outer end surface of the extension cylinder 2 and the inner surface of the template 4, concrete leakage is prevented in the pouring process, the sealing gasket 5 is also removed when the template 4 is removed, and the groove body 23 on the outer end surface of the extension cylinder 2 can contain the second flange 31 of the wall pin 3, so that the constructed building surface is flat and smooth.
The invention can reinforce the formworks 4, keep the space between the opposite formworks 4, and keep the formworks 4 from deforming in the concrete pouring process, so that the poured concrete member can have flat appearance and meet the design requirements.
The invention can be used as an inner lacing wire of a concrete member with a complex structure, controls the distance between the templates 4 in the concrete member, can reduce the fixed parts outside the template 1, is convenient for fixing the template 1 and is beneficial to reducing the building difficulty of the concrete member with the complex structure.
The invention is embedded in the concrete member after pouring concrete, the sleeve 1 and the extension cylinder 2 are fixed by the concrete, the wall pin 3 can be assembled and disassembled in a rotating way, after the lower wall pin 3 is disassembled, the combination of the sleeve 1 and the extension cylinder 2 can be used as a hoisting hole, and when the upper wall pin 3 is assembled but the wall pin is not screwed, the wall pin can be used as a hoisting ring, thereby being convenient for hoisting, and being especially suitable for precast concrete members.
The existing precast concrete member generally buries the hoisting ring in the precast concrete member, but the hoisting ring protrudes out of the precast concrete member, while the sleeve 1 and the extension cylinder 2 of the invention are fixed in the precast concrete member, the extension cylinder 2 is flush with the surface of the concrete member, when the wall pin 3 is screwed, the surface of the wall pin 3 is flush with the surface of the concrete member, and no protruding part exists, so that the precast concrete member is convenient to stack and transport.
The length of the concrete member can be adjusted by extending the depth of the barrel 2 screwed into the sleeve 1, and the concrete member is suitable for producing concrete members with different thicknesses and specifications.
After the device is connected, the distance between the two opposite templates 4 can still be adjusted by placing the sleeve 1, so that errors can be adjusted quickly in the detection process before pouring, and the product can be ensured to meet the design requirements.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made to the technical solution of the present invention within the scope of disclosure without departing from the spirit of the present invention.
Claims (9)
1. A fixing device for a building concrete formwork is characterized by comprising a sleeve (1), an extension cylinder (2) and a wall pin (3);
the sleeve (1) is a cylinder with openings at two ends, a plurality of annular rib plates (11) are arranged on the outer wall of the sleeve (1) at intervals along the length direction of the sleeve (1), the annular rib plates (11) are annular plate bodies, the inner rings of the annular rib plates (11) are fixedly connected with the outer wall of the sleeve (1), a plurality of annular array-shaped axial rib plates (12) are arranged between every two adjacent annular rib plates (11), the sleeve is characterized in that one end of the axial rib plate (12) facing the axis of the sleeve (1) is an inner end, one end far away from the axis of the sleeve (1) is an outer end, the inner end of the axial rib plate (12) is fixedly connected with the outer wall of the sleeve (1), the left end and the right end of the axial rib plate (12) are fixedly connected with the surfaces of the two annular rib plates (11) on the left side and the right side of the axial rib plate (12) opposite to each other, a first internal thread is coaxially arranged on the inner wall of the sleeve (1), and the two ends inside the sleeve (1) are connected with an extension cylinder;
the utility model discloses a two extension section of thick bamboo (2) are both ends open-ended barrel, the equipartition has first counter bore (21) on the periphery wall of two extension section of thick bamboos (2), the outer periphery wall of first counter bore (21) of two extension section of thick bamboos (2) all is provided with the first external screw thread that matches with first internal thread, the tip of extension section of thick bamboo (2) towards sleeve (1) is inner, the tip of keeping away from sleeve (1) is the outer end, the inner of extension section of thick bamboo (2) is adorned soon in sleeve (1), the outer end is located sleeve (1) outside, the outer end of extension section of thick bamboo (2) is provided with annular first flange (22), first flange (22) are less than the surface diameter that sleeve (1) was kept away from to first flange (1) surface diameter, the surface center of keeping away from sleeve (1) of first flange (22) is provided with circular shape concentric cell body (23), a plurality of clamping grooves (24) are formed in the surface, far away from the sleeve (1), of the first flange (22) outside the groove body (23), each clamping groove (24) is a groove with an opening communicated with the groove body (23), the clamping grooves (24) are arranged around the groove body (23) in an annular array manner, second internal threads are coaxially arranged on the inner wall of each extension cylinder (2), and wall pins (3) are connected inside the extension cylinder (2) through the second internal threads;
wall round pin (3) are provided with the cylinder of second external screw thread for the periphery wall, and the second external screw thread and the second internal thread of wall round pin (3) periphery wall match, and the inner of wall round pin (3) is packed into extension section of thick bamboo (2) soon in, the outer end is located extension section of thick bamboo (2) outside, and the outer end of wall round pin (3) is provided with second flange (31), second flange (31) match with cell body (23) on first flange (22) and correspond, are provided with on the surface of second flange (31) and stretch into in second flange (31), opening second counter bore (32) outwards, second counter bore (32) are the rectangle counter bore.
2. A fixing device for building concrete forms according to claim 1, characterized in that said sleeve (1) has a length equal to or greater than the sum of the lengths of the two elongated cylinders (2).
3. A fixing device for building concrete forms according to claim 1, characterized in that the length of said extension cylinder (2) is greater than or equal to the length of the wall pin (3).
4. A fixing device for building concrete forms according to claim 1, characterized in that the depth of the first counter bore (21) is greater than the profile height of the first external thread and less than the wall thickness of the elongated barrel (2).
5. A fixing device for building concrete forms according to claim 1, characterized in that both said axial ribs (12) and said circumferential ribs (11) have through holes (13) distributed therethrough.
6. A fastening arrangement for a construction concrete form according to claim 1, wherein the first and second internal threads have the same pitch.
7. A fixing device for a building concrete form according to claim 1, characterized in that the first internal thread is formed by two internal threads with opposite screwing directions at two ends inside the sleeve (1) and butted at the center inside the sleeve (1), and the first external threads of the two extension cylinders are respectively matched with the first internal thread at one end of the sleeve (1) where the two extension cylinders are arranged.
8. Use of a fixing device for building concrete forms according to claims 1-7, characterised in that it comprises the following steps:
A. the two ends of the sleeve (1) are respectively connected with an extension cylinder (2), the extending distance of the outer ends of the two extension cylinders (2) is adjusted according to the building design requirement, the distance between the outer sides of first flanges (22) of the two extension cylinders (2) is equal to the distance between building templates (4), the templates (4) are cast-in-place templates, and holes for penetrating through wall pins (3) are formed in the middle of the templates;
B. attaching the outer side surface of a first flange (22) of one extension cylinder (2) of the combined sleeve (1) and the two extension cylinders (2) to the inner surface of the template (4) on one side, penetrating the template (4) from the outside of the template (4) on one side by using a wall pin (3) to extend into the extension cylinder (2) facing the template (4), and enabling the first flange (22) and a second flange (31) to clamp the template (4);
C. and then attaching the outer side surface of the first flange (22) of the other extension cylinder (2) in the combined sleeve (1) and the two extension cylinders (2) to the inner surface of the other side template (4), using the other wall pin (3) to penetrate through the template (4) from the outside of the template (4) and extend into the extension cylinder (2), and enabling the first flange (22) and the second flange (31) to clamp the template (4), wherein at the moment, the two templates are fixed.
9. Use of a fixing device for building concrete forms according to claim 8, characterized in that when the outer side of the first flange (22) of the extension cylinder (2) is in contact with the inner surface of the form (4), the groove (23) of the extension cylinder (2) has an annular gasket (5) pressed against the inner surface of the form (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010948696.6A CN112196265B (en) | 2020-09-10 | 2020-09-10 | Fixing device for building concrete formwork and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010948696.6A CN112196265B (en) | 2020-09-10 | 2020-09-10 | Fixing device for building concrete formwork and using method thereof |
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| Publication Number | Publication Date |
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| CN112196265A true CN112196265A (en) | 2021-01-08 |
| CN112196265B CN112196265B (en) | 2022-01-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152067A (en) * | 1995-08-30 | 1997-06-18 | 早川义行 | Concrete form spacing fixture |
| JP2001262828A (en) * | 2000-03-16 | 2001-09-26 | Fudou Reform:Kk | Female thread pipe-type separator unit |
| DE20304390U1 (en) * | 2003-03-18 | 2003-06-05 | Doellen Heinz Von | Permanent shuttering anchor has center component extending by opposite ends almost up to inner faces of opposite shuttering elements, and has removable seal installed between each end of center component and shuttering element |
| CN103669854A (en) * | 2013-11-29 | 2014-03-26 | 重庆智锐德科技有限公司 | Oppositely pulling clamp device for formworks |
| CN103850392A (en) * | 2012-12-04 | 2014-06-11 | 北京工业大学 | Concrete column with vertical perforated rib plates between outer square steel pipe and inner round steel pipe and manufacturing method of concrete column |
| CN106988532A (en) * | 2017-04-25 | 2017-07-28 | 柳州市乾阳机电设备有限公司 | Building template is to drawing device |
-
2020
- 2020-09-10 CN CN202010948696.6A patent/CN112196265B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152067A (en) * | 1995-08-30 | 1997-06-18 | 早川义行 | Concrete form spacing fixture |
| JP2001262828A (en) * | 2000-03-16 | 2001-09-26 | Fudou Reform:Kk | Female thread pipe-type separator unit |
| DE20304390U1 (en) * | 2003-03-18 | 2003-06-05 | Doellen Heinz Von | Permanent shuttering anchor has center component extending by opposite ends almost up to inner faces of opposite shuttering elements, and has removable seal installed between each end of center component and shuttering element |
| CN103850392A (en) * | 2012-12-04 | 2014-06-11 | 北京工业大学 | Concrete column with vertical perforated rib plates between outer square steel pipe and inner round steel pipe and manufacturing method of concrete column |
| CN103669854A (en) * | 2013-11-29 | 2014-03-26 | 重庆智锐德科技有限公司 | Oppositely pulling clamp device for formworks |
| CN106988532A (en) * | 2017-04-25 | 2017-07-28 | 柳州市乾阳机电设备有限公司 | Building template is to drawing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112196265B (en) | 2022-01-07 |
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