CN111305560A - Assembled back-jacking type hanging hole steel formwork - Google Patents
Assembled back-jacking type hanging hole steel formwork Download PDFInfo
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- CN111305560A CN111305560A CN202010255546.7A CN202010255546A CN111305560A CN 111305560 A CN111305560 A CN 111305560A CN 202010255546 A CN202010255546 A CN 202010255546A CN 111305560 A CN111305560 A CN 111305560A
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- steel
- supporting rod
- hanging hole
- semicircular
- splicing
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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
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
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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
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
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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 discloses an assembled back-jacking type hanging hole steel formwork which comprises a combined steel formwork with a circular ring structure, wherein a reserved hole is formed in the center of the combined steel formwork; the combined steel template is formed by splicing two semicircular steel plates, wherein the two semicircular steel plates are a first semicircular steel plate and a second semicircular steel plate; an assembling nut and a connecting bolt are arranged at the splicing seam of the two semicircular steel plates and are used for splicing and locking the two semicircular steel plates; three groups of positioning nuts are uniformly and fixedly arranged on a circular ring structure formed by splicing the combined steel templates in a reversing manner; the three groups of positioning nuts are respectively connected with a first supporting rod, and each first supporting rod is sequentially connected with the second supporting rod and the third supporting rod. The core of the invention is a unique hinge mode formed by clamping a unique flat lug structure on a first support rod into a clamping groove of a positioning nut and a combined steel template to be reserved, which is formed by splicing double rings, so that the hanging hole template can be rapidly assembled and disassembled.
Description
Technical Field
The invention relates to an assembled back-jacking type hanging hole steel formwork, and belongs to the technical field of building construction.
Background
When the main body of the pipeline of the toilet, the kitchen and the water heating well is constructed, an installation hole is reserved, and the pipeline is plugged after being installed. In the prior art, an invention patent 201720257527.1 applied by Jiangsu architecture occupational technology college discloses a hanging hole waterproof plugging structure, wherein the hanging hole is formed in a floor slab and is conical, the opening of the hanging hole is gradually reduced from top to bottom, the hanging hole is filled with expanded concrete, and a leveling layer, a waterproof layer, a cement layer, a floor heating pipe layer and a fine stone concrete layer are sequentially arranged on the upper surface of the floor slab from bottom to top. The invention patent 201520771865.8 of the eighth project administration of china limited company application discloses a pipeline hanging hole plugging structure, which is formed at the reserved hole of a floor slab, and comprises: the hanging hole die is arranged at the bottom end of the reserved hole in a plugging manner; the water-stopping sealing ring is annularly arranged in the reserved hole and is close to the hanging hole die; and the waterproof filling layer is filled in the space from the water stop sealing ring to the top end of the reserved hole. However, the templates need to be built during plugging by the scheme, the problem of serious material waste exists in the traditional template mode, leakage risks exist in the toilet, the kitchen and the water heating well during construction of the templates, and the manual efficiency is low. Therefore, it is very meaningful to design a special template for blocking the hanging hole.
Disclosure of Invention
The invention aims to provide the steel formwork capable of being assembled into the back-jacking type hanging hole, which can realize multiple turnover, greatly reduce the using amount of the formwork, avoid the leakage risk of rooms with waterproof requirements in a toilet, a kitchen and a water heating well and improve the construction quality.
The invention is realized by the following steps:
an assembled back-jacking type hanging hole steel formwork comprises a combined steel formwork with a circular ring structure, wherein a reserved hole is formed in the center of the combined steel formwork; the combined steel template is formed by splicing two semicircular steel plates, wherein the two semicircular steel plates are a first semicircular steel plate and a second semicircular steel plate; an assembling nut and a connecting bolt are arranged at the splicing seam of the two semicircular steel plates and are used for splicing and locking the two semicircular steel plates; three groups of positioning nuts are uniformly and fixedly arranged on a circular ring structure formed by splicing the combined steel templates in a reversing manner; the three groups of positioning nuts are respectively connected with a first supporting rod, and each first supporting rod is sequentially connected with the second supporting rod and the third supporting rod.
Furthermore, the connecting lines from the opening directions of the threaded holes of the three groups of positioning nuts to the circle center of the combined steel template circular ring structure intersect at the circle center at 120 degrees.
Furthermore, each group of positioning nuts is composed of two nuts welded on the combined steel template side by side, and a clamping groove is formed in a gap between the two nuts of each group of positioning nuts side by side.
Furthermore, the top end of the first supporting rod is provided with a flat lug, a reserved screw hole penetrates through the flat lug, and the thickness of the flat lug can enable the flat lug to be clamped into a clamping groove formed by a positioning nut and then penetrate through the reserved screw hole through a bolt to form a hinge mode.
Furthermore, the bottom end of the first supporting rod is provided with an internal thread, and the rest parts of the first supporting rod except the bottom end and the top end are smooth circular tubes.
Furthermore, the top end of the second support rod is provided with an external thread matched with the internal thread on the first support rod; the bottom end of the second supporting rod is provided with an internal thread, the middle of the second supporting rod is divided into two sections, the upper part of the second supporting rod is of a round steel structure, and the lower part of the second supporting rod is a smooth round pipe.
Furthermore, the top end of the third support rod is provided with an external thread matched with the internal thread at the bottom end of the second support rod, and the rest part is of a round steel structure; the middle part of the round steel structure is provided with a fine adjustment handle.
Compared with the common hanging hole making method, the core of the invention is that the hanging hole template can be assembled and disassembled quickly by a unique hinge mode formed by clamping the unique flat lug structure on the first support rod into the clamping groove of the positioning nut and a combined steel template to be reserved formed by splicing double rings, thereby improving the turnover frequency of the hanging hole template, simplifying the installation and disassembly operations, improving the hanging hole quality, avoiding the leakage risk of water room pipe roots in toilets, kitchens, water heating wells and the like, saving the template material loss and achieving the purpose of green construction.
Drawings
FIG. 1 is a schematic elevation of the formwork erection of the present invention;
FIG. 2 is a schematic plan view of the formwork erection of the present invention;
FIG. 3 is a schematic enlarged elevational view of the formwork of the present invention;
FIG. 4 is a schematic plan view of a modular steel form;
FIG. 5 is an exploded view of the components of FIG. 4;
FIG. 6 is a schematic sectional view of a modular steel form;
FIG. 7 is a schematic elevation of a first support bar;
FIG. 8 is a schematic side elevational view of the first support bar;
FIG. 9 is a schematic view of a second support bar;
fig. 10 is a schematic view of a third support bar.
Description of reference numerals: 1-a combined steel template, 2-a first support rod, 3-a connecting bolt, 4-a first semicircular steel plate, 5-a second semicircular steel plate, 6-a positioning nut, 7-an assembling nut, 8-a reserved hole, 9-a clamping groove, 10-a reserved screw hole, 11-a flat lug, 12-an internal thread, 13-an external thread, 14-a round steel structure, 15-a smooth round pipe and 16-a fine adjustment handle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1-10, the steel form has the following construction steps:
firstly, the method comprises the following steps: formwork installation
According to the figure 5, a first semicircular steel plate 4 and a second semicircular steel plate 5 surround a vertical pipe, and are firmly connected by an assembly nut 7 and a connecting bolt 3 to form a combined steel template 1 of a hole 8 to be reserved, which is shown in the figure 4; the flat lug 11 on the first supporting rod 2 is clamped into a clamping groove 9 between the positioning nuts 6 on the combined steel template 1, and bolts sequentially penetrate through the positioning nuts 6 and the reserved screw holes 10 on the flat lug 11 and then are connected and locked to form the structure shown in the figures 1, 2 and 3; the support rod pieces are lengthened according to the height requirement and are sequentially connected by adopting the support rods shown in the figures 7-10, the first support rod 2 is connected with the second support rod and the third support rod, and the support rod pieces are connected by adopting threads; primarily adjusting the support flatness of the template; and (5) fine-tuning the template support.
II, secondly: pouring of concrete
Filling the concrete with a grade higher than the design grade, adding an expanding agent into the concrete, and vibrating and compacting.
Thirdly, the method comprises the following steps: form removal
Loosening the support rod by using a fine adjustment handle 16, removing the support rod, and synchronously removing the support rod with the same elevation; and finally, dismantling the combined steel template 1.
And (5) dismantling the steel template for turnover use.
The steel template used by the invention comprises three parts: combined steel moulding plate 1: the steel plate is formed by splicing a first semicircular steel plate 4 and a second semicircular steel plate 5; supporting the rod piece: the support device comprises a first support rod 2, a second support rod and a third support rod, wherein the three support rods are connected in a matching way through internal threads 12 and external threads 13, and a fine adjustment handle 16 is arranged on the third support rod; connecting piece: including a set nut 6, an assembly nut 7 and a connecting bolt 3.
The combined steel template 1 is a semicircular steel plate with the thickness of 6mm, the semicircular steel plate is hollow, and the hollow size is determined according to the actual diameter of the pipeline. For example: the sewage pipe, the rainwater pipe and the fire-fighting vertical pipe are DN100, and the hollow size of the steel plate is a concentric circle with the diameter of 100 mm; the water supply main pipe is DN50, and the hollow size of the steel plate is a concentric circle with the diameter of 50 mm. The semicircular steel plate is welded with an M8 nut as an assembly nut 7 and a positioning nut 6, and the M8 nut is used for connecting the first semicircular steel plate 4 and the second semicircular steel plate 5 and connecting the steel plate and the first supporting rod 2. The steel templates are processed in a unified mode.
Principle: the vertical water supply and drainage pipe, the inner circle of the semicircular steel template and the outer circle of the semicircular steel template are concentric circles.
The connecting bolt is connected by a finished M6 bolt.
As shown in fig. 7 and 8, the first support rod 2 is made of a steel pipe with a wall thickness of 3mm, A22, and the length between the rods is 1500 mm; one end of the steel pipe is flattened within 50mm to form a flat lug 11, a hole is formed in the middle to serve as a reserved screw hole 10, and the hole diameter is 7 mm; the internal thread 12 is arranged in the lower end of the steel pipe, and the length of the internal thread 12 is 250 mm.
As shown in fig. 9, the second support rod is manufactured by welding a 500 mm-long a22 steel tube with a wall thickness of 3mm as a smooth round tube 15 and a 500 mm-long a20 round steel structure 14, and the length of the rod is 1000 mm; an internal thread 12 is arranged in one end of the smooth circular tube 15, and the length of the internal thread 12 is 250 mm; one end of the A20 round steel structure 14 is provided with an external thread 13, and the length of the external thread 13 is 250 mm.
As shown in fig. 10, the third support bar is made by welding a round steel structure 14 of a20, and the length of the bar is 1000 mm; one end of the round steel structure 14 is provided with an external thread 13, and the length of the external thread 13 is 250 mm; the trimming handle 16 is welded in the center of the round steel structure 14, and the trimming handle 16 is made of A6 round steel and is bent into a circle with the diameter of 60mm, so that the trimming handle is firmly welded with the round steel structure 14.
Of course, the above is only a specific application example of the present invention, and other embodiments of the present invention are also within the scope of the present invention.
Claims (7)
1. The utility model provides an equipment back ceiling type hanging hole steel form which characterized in that: the combined steel formwork comprises a combined steel formwork (1) with a circular ring structure, wherein a preformed hole (8) is formed in the center of the combined steel formwork (1); the combined steel template (1) is formed by splicing two semicircular steel plates, wherein the two semicircular steel plates are a first semicircular steel plate (4) and a second semicircular steel plate (5); an assembling nut (7) and a connecting bolt (3) are arranged at the splicing seam of the two semicircular steel plates and are used for locking after splicing the two semicircular steel plates; three groups of positioning nuts (6) are uniformly and fixedly arranged on a circular ring structure formed by splicing the combined steel templates (1) in a reversing way; three sets of set nuts (6) are respectively connected with a first supporting rod (2), and each first supporting rod (2) is sequentially connected with a second supporting rod and a third supporting rod.
2. The assembled back-jacking type hanging hole steel formwork of claim 1, wherein: the connecting lines from the tapping directions of the threaded holes of the three groups of positioning nuts (6) to the circle center of the circular ring structure of the combined steel template (1) intersect at the circle center at an angle of 120 degrees.
3. The assembled back-jacking type hanging hole steel formwork of claim 1, wherein: each group of positioning nuts (6) is composed of two nuts welded on the combined steel template (1) side by side, and a clamping groove (9) is formed in a gap between the two nuts of each group of positioning nuts (6) side by side.
4. The assembled back-jacking type hanging hole steel formwork of claim 3, wherein: first bracing piece (2) top is equipped with flat ear (11), has worn on flat ear (11) and has reserved screw (10), the thickness of flat ear (11) can make its card go into card that set nut (6) constitute go into slot (9) back through the bolt pass reserve screw (10) and constitute a hinge mode.
5. The assembled back-jacking type hanging hole steel formwork of claim 4, wherein: the bottom end of the first supporting rod (2) is provided with an internal thread (12), and the rest parts of the first supporting rod (2) except the bottom end and the top end are smooth circular tubes (15).
6. The assembled back-jacking type hanging hole steel formwork of claim 5, wherein: the top end of the second supporting rod is provided with an external thread (13) matched with the internal thread (12) on the first supporting rod (2); the bottom end of the second supporting rod is provided with an internal thread (12), the middle of the second supporting rod is divided into two sections, the upper part of the second supporting rod is of a round steel structure (14), and the lower part of the second supporting rod is of a smooth round pipe (15).
7. The assembled back-jacking type hanging hole steel formwork of claim 5, wherein: the top end of the third support rod is provided with an external thread (13) matched with the internal thread (12) at the bottom end of the second support rod, and the rest part is a round steel structure (14); a fine adjustment handle (16) is arranged in the middle of the round steel structure (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255546.7A CN111305560A (en) | 2020-04-02 | 2020-04-02 | Assembled back-jacking type hanging hole steel formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010255546.7A CN111305560A (en) | 2020-04-02 | 2020-04-02 | Assembled back-jacking type hanging hole steel formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111305560A true CN111305560A (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010255546.7A Pending CN111305560A (en) | 2020-04-02 | 2020-04-02 | Assembled back-jacking type hanging hole steel formwork |
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| CN (1) | CN111305560A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627432A (en) * | 2020-12-19 | 2021-04-09 | 王洪 | Environment-friendly bottom plate and preparation method thereof |
-
2020
- 2020-04-02 CN CN202010255546.7A patent/CN111305560A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627432A (en) * | 2020-12-19 | 2021-04-09 | 王洪 | Environment-friendly bottom plate and preparation method thereof |
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