CN115717455B - Accurate positioning device for cast-in-situ reinforced concrete formwork and steel bar and construction method - Google Patents
Accurate positioning device for cast-in-situ reinforced concrete formwork and steel bar and construction method Download PDFInfo
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- CN115717455B CN115717455B CN202211481098.8A CN202211481098A CN115717455B CN 115717455 B CN115717455 B CN 115717455B CN 202211481098 A CN202211481098 A CN 202211481098A CN 115717455 B CN115717455 B CN 115717455B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 16
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title claims description 12
- 238000009415 formwork Methods 0.000 title description 2
- 239000004567 concrete Substances 0.000 claims abstract description 61
- 238000002788 crimping Methods 0.000 claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000004816 latex Substances 0.000 claims description 3
- 229920000126 latex Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The accurate positioning device for the cast-in-situ reinforced concrete template and the reinforced steel bar comprises a foundation sleeve ring, a telescopic sleeve, an elastic sleeve and a screw rod; the foundation lantern ring comprises a sleeve, a crimping ring plate and a positioning plate; the sleeve is arranged in the perforation in a penetrating way; the positioning plate is blocked at the outer port of the sleeve; the telescopic sleeve is horizontally arranged on the inner side of the concrete template and can be telescopic along the long axial direction of the telescopic sleeve; the telescopic sleeve comprises a sleeve ring and an end cap; the lantern ring is arranged along the direction perpendicular to the surface of the concrete template; the diameter of the section of the lantern ring gradually increases from inside to outside; the diameter of the section of the end cap gradually increases from inside to outside; the end cap is connected with the lantern ring in a hanging way; the elastic sleeve is sleeved outside the telescopic sleeve; the screw is in threaded connection with the threaded hole, and the inner end of the screw is provided with a supporting plate; the supporting plate is propped against the inner side of the end part of the end cap; the inner end surface of the elastic sleeve is adhered with a magnet block; the magnet block is provided with a clamping groove. The invention solves the technical problems of higher cost, destructive influence on the structure, large deviation and incapability of adjusting in the traditional positioning mode.
Description
Technical Field
The invention relates to the technical field of civil engineering construction, in particular to an accurate positioning device and a construction method for cast-in-situ reinforced concrete templates and reinforcing steel bars.
Background
The construction of the reinforced concrete structure requires that the templates are firstly installed, and the positioning accuracy of the templates directly influences the position accuracy of the concrete structure; in addition, in order to ensure the durability of the structure, the steel bars in the reinforced concrete structure need a protective layer with a certain thickness, and the position accuracy of the steel bars is also of great importance. Therefore, the positioning of the cast-in-situ reinforced concrete template and the steel bars is an important construction process. The conventional positioning mode of the template is to weld short steel bars on longitudinal steel bars, or drill holes on the cast-in-situ plate surface to insert positioning bars, or nail positioning plates on the cast-in-situ plate surface, and the like; the template positioning mode welding positioning ribs are greatly influenced by a welding process, deviation is not easy to adjust, and damaged longitudinal ribs are welded; drilling holes, nails and the like on the cast-in-situ plate damage the structural plate surface, and the problems of positioning deviation, looseness, difficult positioning adjustment, large deviation and the like are caused by the influence of steel bars in the plate. The longitudinal steel bars are positioned by precast concrete blocks and precast plastic in a buckle type, and the two positioning modes are fixed on the steel bar framework in advance, so that the defects of easy loosening, slipping, incapability of adjusting positioning and the like are overcome; the positioning blocks and the positioning ribs in the positioning mode are disposable and cannot be recycled; these positioning methods also have the disadvantages of high cost, destructive effect on the structure, large deviation and inability to adjust.
Disclosure of Invention
The invention aims to provide a precise positioning device and a construction method for cast-in-situ reinforced concrete templates and reinforcing steel bars, which aim to solve the technical problems that the traditional positioning mode has higher cost, destructive influence on the structure, large deviation, incapability of adjusting and easy loosening and sliding of positioning blocks.
In order to achieve the above purpose, the present invention adopts the following technical scheme.
The accurate positioning device for the cast-in-situ reinforced concrete template and the reinforced steel bars is arranged on the concrete template and used for positioning the reinforced steel bars and the concrete template; perforations are arranged on the concrete template at intervals at positions corresponding to the steel bars;
The accurate positioning device comprises a basic sleeve ring, a telescopic sleeve, an elastic sleeve and a screw rod; the foundation lantern ring comprises a sleeve, a crimping ring plate and a positioning plate; the sleeve is horizontally arranged in the perforation in a penetrating way, and the side wall of the sleeve is attached to the side wall of the perforation; the inner end of the sleeve exceeds the inner side surface of the concrete template, and an inner hanging end is arranged at the inner end of the sleeve; the locating plate is plugged at the outer port of the sleeve, and a threaded hole is formed in the middle of the plate surface of the locating plate; the crimping ring plate is sleeved on the sleeve and is close to the inner end position of the sleeve, and the crimping ring plate is attached to the inner side surface of the concrete template; the crimping ring plate is connected with the concrete template through a fastener; the telescopic sleeve is horizontally arranged on the inner side of the concrete template and can be telescopic along the long axial direction of the telescopic sleeve; the telescopic sleeve comprises a sleeve ring and an end cap; the lantern rings are arranged in a group along the direction perpendicular to the surface of the concrete template; the diameter of the section of the lantern ring is gradually increased from inside to outside, the outer end of the lantern ring is bent towards the direction deviating from the circle center of the lantern ring to form an externally hung edge, and the inner end of the lantern ring is bent towards the direction approaching to the circle center of the lantern ring to form an internally hung edge; in the two adjacent lantern rings, the outer end of the lantern ring on the inner side is inserted into the inner end of the lantern ring on the outer side, and the outer hanging edge is connected with the inner hanging edge in a hanging manner; the outer end of the outermost lantern ring is inserted into the sleeve, and the outer hanging edge of the outermost lantern ring is connected with the inner hanging end in a hanging manner; the section of the end cap is circular, and the section diameter of the end cap is gradually increased from inside to outside; an externally hung connecting end is arranged at the outer end of the end cap; the outer end of the end cap is inserted into the innermost lantern ring, and the externally hung end is connected with the inner hanging edge of the innermost lantern ring in a hanging manner;
The elastic sleeve is sleeved outside the telescopic sleeve, and the edge of the elastic sleeve is pressed on the crimping ring plate; the elastic sleeve is in a stretching state; the fastener is arranged in the elastic sleeve and the compression joint annular plate in a penetrating way, and the elastic sleeve is connected with the concrete template; the screw rod is in threaded connection with the threaded hole, and the inner end of the screw rod extends into the telescopic sleeve; a supporting plate is arranged at one end of the screw rod extending into the telescopic sleeve; the supporting plate is propped against the inner side of the end part of the end cap and is fixedly connected with the end part of the end cap; the outer end of the screw rod is connected with a screwing head; a magnet block is adhered to the inner end surface of the elastic sleeve; the magnet block is provided with a clamping groove for clamping the reinforcing steel bars.
Preferably, the sleeve is adhesively connected to the perforated sidewall.
Preferably, the lantern rings are made of thin steel plates or made of iron sheets, and the whole appearance of the lantern rings is in a horizontal truncated cone shape; the length of the lantern ring is 6 mm-10 mm; the diameter of the inner end surface of the telescopic sleeve is 15 mm-17 mm; the diameter of the outer end face of the telescopic sleeve is 16 mm-20 mm.
Preferably, the fastener is a self-tapping screw or a bolt; an annular backing plate is arranged between the fastener and the edge of the elastic sleeve.
Preferably, the elastic sleeve is made of latex or silica gel.
Preferably, scale marks are arranged on the screw.
Preferably, a circle of sealing ring is arranged at the joint between the crimping ring plate and the concrete template.
The construction method of the accurate positioning device comprises the following steps.
Step one, binding reinforcing steel bars.
And secondly, forming perforations on the concrete template at positions corresponding to the reinforcing steel bars.
And step three, installing a foundation collar in the perforation.
And step four, assembling the lantern ring and the end cap to form the telescopic sleeve.
And fifthly, inserting the outer end of the telescopic sleeve into the basic sleeve ring, and hanging the outer hanging edge of the sleeve ring at the outermost side with the inner hanging end of the basic sleeve ring.
Step six, sleeving the elastic sleeve on the outer side of the telescopic sleeve, and pressing the edge of the elastic sleeve on the crimping ring plate.
And seventhly, bonding a magnet block at the inner end of the elastic sleeve.
And step eight, connecting the screw rod in the perforation in a threaded manner, and enabling the supporting plate at the inner end of the screw rod to be connected with the end part of the telescopic sleeve in an adhesive manner.
And step nine, installing a concrete template.
And step ten, screwing the screw rod, and adjusting the length of the screw rod at the inner side of the concrete template to connect the magnet block with the steel bar.
And step eleven, continuously screwing the screw rods to ensure that the screw rod lengths at the inner side of the concrete template are equal, thereby controlling the distance between the reinforcing steel bars and the front of the concrete template to be consistent.
And twelve, pouring concrete, and finishing the construction.
Compared with the prior art, the invention has the following characteristics and beneficial effects.
1. The invention adopts the screw to position, can finely adjust the space between the reinforced bar and the concrete template, and has high positioning precision; the accurate positioning device is arranged on the template, can be used along with the turnover of the template, and reduces labor cost and material cost for repeatedly arranging the positioning device.
2. The telescopic sleeve in the accurate positioning device is of a telescopic structure, so that the support force required by positioning is provided to realize the accurate positioning requirement of a target, the telescopic sleeve can also be contracted, the space occupation is reduced, and the template is convenient to dismantle and turn over; and the accurate positioning device is arranged on the temporary structural template, so that the reinforced concrete main body structure cannot be damaged, and the round table-shaped small holes are removed, thereby facilitating the repair of the holes.
3. According to the invention, the magnet blocks are arranged on the inner end surface of the elastic sleeve, and are magnetically connected with the corresponding steel bars, the distance between the steel bars and the concrete template is adjusted by adjusting the length of the screw rod extending into the inner side of the concrete template, so that the technical problems that the welding positioning bars are easy to deviate and difficult to adjust and the welding damage longitudinal bars in the traditional template positioning mode are solved.
Drawings
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic view of the structure in which the precise positioning device of the present invention is disposed between a concrete form and a reinforcing bar.
Fig. 2 is a schematic view of the structure of the present invention mounted on a concrete form.
Fig. 3 is a schematic view of the structure of the end cap of the present invention.
Fig. 4 is a schematic structural view of the collar in the present invention.
Fig. 5 is a schematic structural view of the foundation collar of the present invention.
Reference numerals: 1-concrete form, 2-rebar, 3-perforation, 4-foundation collar, 4.1-sleeve, 4.2-crimp ring, 4.3-inner hitching end, 4.4-locating plate, 5-telescoping sleeve, 5.1-collar, 5.1.1-outer hanging edge, 5.1.2-inner hitching edge, 5.2-end cap, 5.2.1-outer hitching end, 6-elastic sleeve, 7-screw, 8-threaded hole, 9-fastener, 10-support plate, 11-magnet block, 12-annular backing plate, 13-clamping groove, 14-sealing ring, 15-screwing head.
Detailed Description
As shown in fig. 1 to 5, the accurate positioning device of the cast-in-situ reinforced concrete template and the reinforced steel bars is arranged on the concrete template 1 and is used for positioning the reinforced steel bars 2 and the concrete template 1; perforations 3 are arranged on the concrete template 1 at intervals at positions corresponding to the reinforcing steel bars 2;
The accurate positioning device comprises a basic sleeve ring 4, a telescopic sleeve 5, an elastic sleeve 6 and a screw rod 7; the foundation lantern ring 4 comprises a sleeve 4.1, a crimping ring plate 4.2 and a positioning plate 4.4; the sleeve 4.1 horizontally penetrates through the through hole, and the side wall of the sleeve 4.1 is attached to the side wall of the through hole 3; the inner end of the sleeve 4.1 exceeds the inner side surface of the concrete template 1, and an inner hanging end 4.3 is arranged at the inner end of the sleeve 4.1; the locating plate 4.4 is plugged at the outer port of the sleeve 4.1, and a threaded hole 8 is formed in the middle of the plate surface of the locating plate 4.4; the crimping ring plate 4.2 is sleeved on the sleeve 4.1 and is close to the inner end position of the sleeve 4.1, and the crimping ring plate 4.2 is attached to the inner side surface of the concrete template 1; the crimping ring plate 4.2 is connected with the concrete form 1 through a fastener 9; the telescopic sleeve 5 is horizontally arranged on the inner side of the concrete template 1 and can be telescopic along the long axial direction of the telescopic sleeve 5; the telescopic sleeve 5 comprises a sleeve ring 5.1 and an end cap 5.2; the lantern rings 5.1 are arranged in a group along the direction vertical to the plate surface of the concrete template 1; the diameter of the cross section of the lantern ring 5.1 is gradually increased from inside to outside, the outer end of the lantern ring 5.1 is bent in the direction away from the circle center of the lantern ring 5.1 to form an externally hung edge 5.1.1, and the inner end of the lantern ring 5.1 is bent in the direction close to the circle center of the lantern ring 5.1 to form an internally hung edge 5.1.2; in the two adjacent lantern rings 5.1, the outer end of the lantern ring 5.1 at the inner side is inserted into the inner end of the lantern ring 5.1 at the outer side, and the outer hanging edge 5.1.1 is connected with the inner hanging edge 5.1.2 in a hanging way; the outer end of the outermost collar 5.1 is inserted into the sleeve 4.1, and the outer hanging edge 5.1.1 of the outermost collar 5.1 is connected with the inner hanging end 4.3 in a hanging way; the cross section of the end cap 5.2 is circular, and the cross section diameter of the end cap 5.2 is gradually increased from inside to outside; the outer end of the end cap 5.2 is provided with an externally-hung connecting end 5.2.1; the outer end of the end cap 5.2 is inserted into the innermost lantern ring 5.1, and the externally hung end 5.2.1 is connected with the inner hanging edge 5.1.2 of the innermost lantern ring 5.1 in a hanging way;
The elastic sleeve 6 is sleeved outside the telescopic sleeve 5, and the edge of the elastic sleeve 6 is pressed on the crimping ring plate 4.2; the elastic sleeve 6 is in a stretched state; the fastener 9 is arranged in the elastic sleeve 6 and the compression joint annular plate 4.2 in a penetrating way, and is used for connecting the elastic sleeve 6 with the concrete template 1; the screw rod 7 is in threaded connection with the threaded hole 8, and the inner end of the screw rod 7 extends into the telescopic sleeve 5; a supporting plate 10 is arranged at one end of the screw 7 extending into the telescopic sleeve 5; the supporting plate 10 is propped against the inner side of the end part of the end cap 5.2, and the supporting plate 10 is fixedly connected with the end part of the end cap 5.2; the outer end of the screw rod 7 is connected with a screwing head 15; the inner end face of the elastic sleeve 6 is adhered with a magnet block 11; the magnet block 11 is provided with a clamping groove 13 for clamping the reinforcing steel bar 2.
In this embodiment, the sleeve 4.1 is adhesively connected to the side wall of the through hole 3.
In this embodiment, the collar 5.1 is made of a thin steel plate or made of an iron sheet, the overall appearance of the collar 5.1 is in a shape of a horizontal truncated cone, and the closed loop of the cross section of the collar 5.1 is expanded along the length direction by 8% -12%; the length of the lantern ring 5.1 is 6 mm-10 mm, and the wall thickness of the lantern ring 5.1 is 0.5-1.2 mm; the diameter of the inner end surface of the telescopic sleeve 5 is 15 mm-17 mm; the diameter of the outer end face of the telescopic sleeve 5 is 16 mm-20 mm.
In this embodiment, the fastener 9 is a self-tapping screw or a bolt; an annular backing plate 12 is interposed between the fastener 9 and the edge of the elastic sleeve 6.
In this embodiment, the elastic sleeve 6 is made of latex or silica gel.
In this embodiment, graduation lines are provided on the screw 7.
In this embodiment a ring of sealing rings 14 is provided at the joint between the crimp ring 4.2 and the concrete form 1.
In this embodiment, the diameter of the outer end face of the collar 5.1 located at the outermost side is adapted to the diameter of the cross section of the sleeve 4.1; in the adjacent two collars 5.1, the diameter of the inner end surface of the outer collar 5.1 is matched with the diameter of the outer end surface of the inner collar 5.1.
The construction method of the accurate positioning device comprises the following steps.
Step one, binding the steel bars 2.
And secondly, forming perforations 3 on the concrete template 1 at positions corresponding to the reinforcing steel bars 2.
Step three, a foundation collar 4 is installed in the perforation 3.
And step four, assembling the lantern ring 5.1 and the end cap 5.2 to form the telescopic sleeve 5.
And fifthly, the outer end of the telescopic sleeve 5 is inserted into the foundation lantern ring 4, and the outer hanging edge 5.1.1 of the outermost lantern ring 5.1 is hung with the inner hanging end 4.3 of the foundation lantern ring 4.
Step six, the elastic sleeve 6 is sleeved on the outer side of the telescopic sleeve 5, and the edge of the elastic sleeve 6 is arranged on the crimping ring plate 4.2 in a pressing mode.
And step seven, bonding a magnet block 11 at the inner end of the elastic sleeve 6.
Step eight, the screw rod 7 is screwed in the through hole 3, and the supporting plate 10 at the inner end of the screw rod 7 is bonded and connected with the end part of the telescopic sleeve 5.
And step nine, installing the concrete form 1.
And step ten, screwing the screw rod 7, and adjusting the length of the screw rod 7 at the inner side of the concrete template 1 to connect the magnet block 11 with the steel bar 2.
And eleventh, continuously screwing the screw rods 7 to ensure that the lengths of the screw rods 7 at the inner side of the concrete template 1 are equal, so that the distance between the reinforcing steel bars 2 and the front of the concrete template 1 is controlled to be consistent.
And twelve, pouring concrete, and finishing the construction.
In this embodiment, the steel bar 2 is a steel bar cage; the concrete templates 1 are four and are respectively arranged around the steel bars 2; the accurate positioning devices are arranged on each concrete template 1 and are respectively positioned on the concrete templates 1 and close to four corner positions, and the accurate positioning devices are arranged corresponding to the vertical steel bars of the steel reinforcement cage.
In this embodiment, the outer end of the sleeve 4.1 does not extend beyond the outer side of the concrete form 1.
In this embodiment, the end cap 5.2 comprises a cap body and a cap cover; the cross section of the cap body is circular, and the outer end of the externally-hung connecting end 5.2.1 is formed by bending the outer end of the cap body towards the direction of the center of the cross section; the cap is blocked at the inner end of the cap body.
In this embodiment, the inner hanging end 4.3 is formed by bending the outer end of the hat body towards the direction of the center of the cross section; the cap is blocked at the inner end of the cap body.
The above embodiments are not exhaustive of the specific embodiments, and other embodiments are possible, and the above embodiments are intended to illustrate the present invention, not to limit the scope of the present invention, and all applications that come from simple variations of the present invention fall within the scope of the present invention.
Claims (6)
1. The accurate positioning device for the cast-in-situ reinforced concrete template and the reinforced steel bars is arranged on the concrete template (1) and is used for positioning the reinforced steel bars (2) and the concrete template (1); the method is characterized in that: perforations (3) are arranged on the concrete template (1) at intervals at positions corresponding to the reinforcing steel bars (2);
The accurate positioning device comprises a basic sleeve ring (4), a telescopic sleeve (5), an elastic sleeve (6) and a screw rod (7); the foundation lantern ring (4) comprises a sleeve (4.1), a crimping ring plate (4.2) and a positioning plate (4.4); the sleeve (4.1) horizontally penetrates through the through hole, and the side wall of the sleeve (4.1) is attached to the side wall of the through hole (3); the inner end of the sleeve (4.1) exceeds the inner side surface of the concrete template (1), and an inner hanging end (4.3) is arranged at the inner end of the sleeve (4.1); the locating plate (4.4) is plugged at the outer port of the sleeve (4.1), and a threaded hole (8) is formed in the middle of the plate surface of the locating plate (4.4); the crimping ring plate (4.2) is sleeved on the sleeve (4.1) and is close to the inner end position of the sleeve (4.1), and the crimping ring plate (4.2) is attached to the inner side surface of the concrete template (1); the crimping ring plate (4.2) is connected with the concrete template (1) through a fastener (9); the telescopic sleeve (5) is horizontally arranged on the inner side of the concrete template (1) and can be telescopic along the long axial direction of the telescopic sleeve (5); the telescopic sleeve (5) comprises a sleeve ring (5.1) and an end cap (5.2); the lantern rings (5.1) are arranged in a group along the direction vertical to the plate surface of the concrete template (1); the diameter of the section of the lantern ring (5.1) is gradually increased from inside to outside, the outer end of the lantern ring (5.1) is bent towards the direction deviating from the circle center of the lantern ring (5.1) to form an externally hung edge (5.1.1), and the inner end of the lantern ring (5.1) is bent towards the direction close to the circle center of the lantern ring (5.1) to form an internally hung edge (5.1.2); in the two adjacent lantern rings (5.1), the outer end of the lantern ring (5.1) at the inner side is inserted into the inner end of the lantern ring (5.1) at the outer side, and the outer hanging edge (5.1.1) is connected with the inner hanging edge (5.1.2) in a hanging way; the outer end of the outermost collar (5.1) is inserted into the sleeve (4.1), and the outer hanging edge (5.1.1) of the outermost collar (5.1) is connected with the inner hanging end (4.3) in a hanging way; the cross section of the end cap (5.2) is circular, and the cross section diameter of the end cap (5.2) is gradually increased from inside to outside; an externally-hung connecting end (5.2.1) is arranged at the outer end of the end cap (5.2); the outer end of the end cap (5.2) is inserted into the innermost lantern ring (5.1), and the externally hung end (5.2.1) is connected with the inner hanging edge (5.1.2) of the innermost lantern ring (5.1) in a hanging way;
The elastic sleeve (6) is sleeved outside the telescopic sleeve (5), and the edge of the elastic sleeve (6) is pressed on the crimping annular plate (4.2); the elastic sleeve (6) is in a stretching state; the fastener (9) is arranged in the elastic sleeve (6) and the compression joint annular plate (4.2) in a penetrating way, and the elastic sleeve (6) is connected with the concrete template (1); the screw rod (7) is in threaded connection with the threaded hole (8), and the inner end of the screw rod (7) extends into the telescopic sleeve (5); a supporting plate (10) is arranged at one end of the screw rod (7) extending into the telescopic sleeve (5); the supporting plate (10) is propped against the inner side of the end part of the end cap (5.2), and the supporting plate (10) is fixedly connected with the end part of the end cap (5.2); the outer end of the screw rod (7) is connected with a screwing head (15); a magnet block (11) is adhered to the inner end surface of the elastic sleeve (6); a clamping groove (13) for clamping the reinforcing steel bar (2) is formed in the magnet block (11); the lantern ring (5.1) is made of thin steel plates or made of iron sheets, and the whole appearance of the lantern ring (5.1) is in a horizontal truncated cone shape; the length of the lantern ring (5.1) is 6 mm-10 mm; the diameter of the inner end surface of the telescopic sleeve (5) is 15-17 mm, and the diameter of the outer end surface of the telescopic sleeve (5) is 16-20 mm; the fastener (9) is a self-tapping screw or a bolt; an annular backing plate (12) is arranged between the fastener (9) and the edge of the elastic sleeve (6).
2. The precise positioning device for cast-in-situ reinforced concrete templates and rebars according to claim 1, wherein: the sleeve (4.1) is connected with the side wall of the perforation (3) in an adhesive mode.
3. The precise positioning device for cast-in-situ reinforced concrete templates and rebars according to claim 1, wherein: the elastic sleeve (6) is made of latex or silica gel.
4. The precise positioning device for cast-in-situ reinforced concrete templates and rebars according to claim 1, wherein: and graduation lines are arranged on the screw rod (7).
5. The precise positioning device for cast-in-situ reinforced concrete templates and rebars according to claim 1, wherein: a circle of sealing ring (14) is arranged at the joint between the crimping ring plate (4.2) and the concrete template (1).
6. A method of constructing the precise positioning device of any one of claims 1 to 5, comprising the steps of:
Step one, binding reinforcing steel bars (2);
step two, perforating holes (3) are formed in the positions, corresponding to the steel bars (2), on the concrete template (1);
step three, installing a foundation collar (4) in the perforation (3);
assembling the lantern ring (5.1) and the end cap (5.2) to form a telescopic sleeve (5);
Inserting the outer end of the telescopic sleeve (5) into the basic sleeve ring (4), and hanging the outer hanging edge (5.1.1) of the outermost sleeve ring (5.1) with the inner hanging end (4.3) of the basic sleeve ring (4);
Step six, sleeving an elastic sleeve (6) on the outer side of the telescopic sleeve (5), and pressing the edge of the elastic sleeve (6) on the crimping ring plate (4.2);
Step seven, bonding a magnet block (11) at the inner end of the elastic sleeve (6);
step eight, a screw rod (7) is connected in the through hole (3) in a threaded manner, and a supporting plate (10) at the inner end of the screw rod (7) is connected with the end part of the telescopic sleeve (5) in an adhesive manner;
Step nine, installing a concrete template (1);
step ten, screwing the screw rod (7), and adjusting the length of the screw rod (7) at the inner side of the concrete template (1) to enable the magnet block (11) to be connected with the steel bar (2);
step eleven, continuously screwing the screw rods (7) to ensure that the lengths of the screw rods (7) at the inner side of the concrete template (1) are equal, so that the distance between the reinforcing steel bars (2) and the front part of the concrete template (1) is controlled to be consistent;
and twelve, pouring concrete, and finishing the construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211481098.8A CN115717455B (en) | 2022-11-24 | 2022-11-24 | Accurate positioning device for cast-in-situ reinforced concrete formwork and steel bar and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211481098.8A CN115717455B (en) | 2022-11-24 | 2022-11-24 | Accurate positioning device for cast-in-situ reinforced concrete formwork and steel bar and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115717455A CN115717455A (en) | 2023-02-28 |
| CN115717455B true CN115717455B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211481098.8A Active CN115717455B (en) | 2022-11-24 | 2022-11-24 | Accurate positioning device for cast-in-situ reinforced concrete formwork and steel bar and construction method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019056715A1 (en) * | 2017-09-20 | 2019-03-28 | 中国建筑股份有限公司 | Mixed-connection post-tensioned prestressed assembly concrete frame architecture and construction method therefor |
| CN113404193A (en) * | 2021-06-29 | 2021-09-17 | 新城控股集团实业发展有限公司 | Precast concrete external wallboard system and construction method thereof |
| CN216607059U (en) * | 2022-01-10 | 2022-05-27 | 重庆恒昇大业建筑科技集团有限公司 | Reinforcing bar net piece ligature location frock |
| CN115095054A (en) * | 2022-07-01 | 2022-09-23 | 海南大学 | Positioning connecting piece, prefabricated anti-seismic superposed wall and construction method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019056715A1 (en) * | 2017-09-20 | 2019-03-28 | 中国建筑股份有限公司 | Mixed-connection post-tensioned prestressed assembly concrete frame architecture and construction method therefor |
| CN113404193A (en) * | 2021-06-29 | 2021-09-17 | 新城控股集团实业发展有限公司 | Precast concrete external wallboard system and construction method thereof |
| CN216607059U (en) * | 2022-01-10 | 2022-05-27 | 重庆恒昇大业建筑科技集团有限公司 | Reinforcing bar net piece ligature location frock |
| CN115095054A (en) * | 2022-07-01 | 2022-09-23 | 海南大学 | Positioning connecting piece, prefabricated anti-seismic superposed wall and construction method thereof |
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| CN115717455A (en) | 2023-02-28 |
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