CN110565954A - method and plug for preventing concrete template screw perforation from leaking slurry - Google Patents
method and plug for preventing concrete template screw perforation from leaking slurry Download PDFInfo
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- CN110565954A CN110565954A CN201910962348.1A CN201910962348A CN110565954A CN 110565954 A CN110565954 A CN 110565954A CN 201910962348 A CN201910962348 A CN 201910962348A CN 110565954 A CN110565954 A CN 110565954A
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- 239000002002 slurry Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000009415 formwork Methods 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- 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
- E04G17/0644—Plug means for tie-holes
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 the technical field of constructional engineering, in particular to a method for preventing a concrete template screw perforation from leaking slurry; the adopted technical scheme is as follows: the method comprises the following steps that a plug is arranged in a screw through hole of the concrete template in a penetrating way, one end of the plug is provided with a threaded connection end, the other end of the plug is provided with a plugging part, and the middle part of the plug is provided with a through hole; sequentially erecting templates on two sides of the concrete pouring mold cavity, and inserting the end of the screw rod protective sleeve into the through hole; and penetrating the counter-pulling screw rods into the screw rod protective sleeves, and fastening the concrete template through the counter-pulling screw rods to complete the erection of the concrete pouring mold cavity to be poured with concrete. The invention can effectively block the split screw holes of the concrete wall template to prevent slurry leakage, can protect the template and the split screws to improve the repeated use efficiency of the template and the split screws, is convenient to block the split screw holes after the template is removed, and can reduce the pouring cost of the concrete wall.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a method and a plug for preventing a concrete template screw perforation from leaking slurry.
Background
When the existing concrete wall is poured, in the formwork support of a pouring die cavity, a hole is drilled in a formwork, and a pulling screw penetrates through the hole in the formwork to fix the formwork. And certain clearance exists in the holes on the opposite pulling screw rods and the template, so that the concrete wall is easy to have the problems of honeycomb, pitted surface, rib leakage and the like when concrete is poured, the quality and the structural strength of the concrete wall are seriously influenced, and particularly the large-area basement wall body or the shear wall. If the through hole of the counter-pull screw on the template is too small, the resistance is large when the counter-pull screw is penetrated, and the fixing efficiency of the template is low; and easily cause the damage to the template or to the split screw when wearing to establish the split screw for split screw and template reuse rate are low, thereby make concrete wall pour the cost and remain high.
Meanwhile, when concrete is poured, a protective sleeve (generally, a PVC pipe) is sleeved outside the counter-pull screw rod to prevent the counter-pull screw rod from being poured with the concrete. However, after the template is removed, the contact surface of the counter-pulling screw rod and the template is easy to deform and leak slurry, and the PVC pipe is extruded and deformed. The post-processing concrete wall split bolt hole is that, need use the rig to bore the back with the PVC tube head, just can carry out the shutoff, and the shutoff is efficient, easy infiltration. Therefore, the screw through hole of the concrete template needs to be plugged, and slurry leakage of the screw through hole of the concrete template during concrete pouring is prevented.
Disclosure of Invention
aiming at the technical problems that the existing concrete wall is easy to leak slurry, the counter-pulling screw is easy to deform and the hole of the counter-pulling screw is blocked inconveniently when in pouring, the invention provides a method for preventing the screw perforation and slurry leakage of the concrete template, which can effectively block the hole of the counter-pulling screw of the concrete wall template to prevent slurry leakage, protect the template and the counter-pulling screw to improve the repeated use efficiency of the template and the counter-pulling screw; and the split screw rod hole after the form removal is convenient to plug, and the pouring cost of the concrete wall can be reduced.
the invention is realized by the following technical scheme:
The method comprises the following steps:
A plug is arranged in a screw perforation of a concrete template in a penetrating way, one end of the plug is provided with a threaded connection end, the other end of the plug is provided with a plugging part with the diameter larger than the aperture of the screw perforation, the middle part of the plug is provided with a through hole in a penetrating way, and the plug is integrally formed by injection molding of PP or PA plastic;
Fastening the plug on the template through a fastening nut;
erecting a concrete template on one side of the concrete pouring mold cavity, and inserting one end of the screw rod protective sleeve into the through hole of the plug so that the screw rod protective sleeve is positioned in the space of the concrete pouring mold cavity;
erecting the concrete template on the other side of the concrete pouring mold cavity, inserting the other end of the screw rod protective sleeve into the through hole of the upper plug of the concrete template on the side, and then supporting the concrete template on the side;
And penetrating the counter-pulling screw rods into the screw rod protective sleeves, and fastening the concrete template through the counter-pulling screw rods to complete the erection of the concrete pouring mold cavity to be poured with concrete.
The plug is inserted and fixed on the template of the concrete wall pouring mold cavity through the fastening nut, and the end part of the plug is tightly attached to the surface of the template so as to effectively plug the pull screw rod hole on the template; meanwhile, the screw rod protective sleeve is inserted into the through hole of the plug, so that slurry leakage can be thoroughly prevented. When the mold is removed, the plug body falls off integrally along with the template, so that the mold removal efficiency is high; and the plug body is fixed on the template all the time, so that the repeated utilization of the plug body can be realized by one-time fixation, the pouring efficiency of the concrete wall can be improved, and the pouring cost of the concrete wall is reduced. After the plug body is detached together with the template, the holes left on the surface of the concrete wall are larger than the outer diameter of the opposite-pull screw protective pipe sleeve, so that the end of the opposite-pull screw protective pipe sleeve is convenient to remove, and the plugging efficiency of the opposite-pull screw hole is high.
The invention also provides a plug for preventing the concrete template screw perforation from leaking slurry, which is used for realizing the method:
The plug comprises a plug body, one end of the plug body is provided with a plugging part, the other end of the plug body is provided with a connecting part, the outer side wall of the connecting part is provided with connecting threads, and the connecting part is used for connecting a fastening nut; the plugging part is used for plugging the template screw through hole, and the outer diameter of the connecting part is smaller than the outer diameter of one end, opposite to the connecting part, of the plugging part; the middle part of the plug body is provided with a through hole, the through hole penetrates through the plugging part and the connecting part, and the through hole is used as a passage through which the template opposite-pulling screw rod protective sleeve penetrates. The above method can be realized.
Furthermore, a perforated part is further arranged between the blocking part and the connecting part, the perforated part is cylindrical, the diameter of the perforated part is larger than the outer diameter of the connecting part, and the diameter of the perforated part is smaller than the outer diameter of the blocking part opposite to one end of the connecting part. Through setting up the perforation part, prevent that the end cap body when using, the screw thread of connecting portion is direct to be contacted with template split screw rod hole pore wall, and damage connecting portion screw thread or template.
preferably, the plugging portion is in a truncated cone shape with an inclined side wall, and the outer diameter of one end, facing the connecting portion, of the plugging portion is larger than that of the other end of the plugging portion. So as to reduce the demoulding resistance of the template and facilitate the pulling out of the plugging part from the concrete when the template is dismantled. Meanwhile, cup-shaped counter-pulling screw holes can be formed in the concrete wall surface, and the surfaces of the hole walls of the counter-pulling screw holes are clean; the end part of the tension screw protective sleeve is more convenient to clear, so that the plugging efficiency of the tension screw hole is further improved.
preferably, the length of the through hole part is greater than the thickness of the concrete wall formwork, so that the threads of the connecting part are effectively protected, and the service life of the plug body is prolonged.
Furthermore, one end of the plugging portion, which is connected with the perforation portion, is provided with an annular pit, the annular pit and the perforation portion are arranged concentrically, and the small diameter of the annular pit is the same as the outer diameter of the perforation portion. On one hand, the stress concentration at the connection part of the plugging part and the perforation part can be prevented, and the plug body is ensured to have enough strength; on the other hand, the contact area between the end face of the plugging part and the template can be reduced, and the direct contact between the plugging part and the template is ensured to be tight.
As specific embodiments of the fastening nut: the fastening nut middle part is equipped with the step hole, step hole footpath section is the screw hole with connecting portion adaptation, step hole major diameter section is the unthreaded hole, step hole major diameter section internal diameter is greater than the portion external diameter of wearing hole. So that the end part of the fastening nut can be tightly attached to the surface of the template without using a gasket, and the fastening efficiency of the plug body is improved.
Preferably, the fastening nut is further provided with a convex shoulder, the convex shoulder is arranged at the same side as the large-diameter section of the stepped hole, the end part of one end of the convex shoulder is flush with the end part of the fastening nut, and a plurality of grooves are formed in one side face of the convex shoulder at the same side as the outer end of the large-diameter section of the stepped hole. The groove can be used as a gas elimination hole of the convex shoulder, and can reduce the contact area of the end face of the convex shoulder and the surface of the template, and reduce the frictional resistance of the fastening screw cap during fastening.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the plug with the end part directly larger than the template screw hole is fixed on the concrete pouring template, so that the counter-pull screw hole on the template can be effectively plugged; meanwhile, the screw rod protective sleeve is inserted into the through hole of the plug, so that slurry leakage can be thoroughly prevented. When the mold is removed, the plug body falls off integrally along with the template, so that the mold removal efficiency is high; and the plug body is fixed on the template all the time, so that the repeated utilization of the plug body can be realized by one-time fixation, the pouring efficiency of the concrete wall can be improved, and the pouring cost of the concrete wall is reduced. After the plug body is detached together with the template, the holes left on the surface of the concrete wall are larger than the outer diameter of the opposite-pull screw protective pipe sleeve, so that the end of the opposite-pull screw protective pipe sleeve is convenient to remove, and the plugging efficiency of the opposite-pull screw hole is high.
2. A through hole part is further arranged between the plugging part and the connecting part of the plug, and the through hole part is cylindrical and is used for being inserted into the concrete wall pouring formwork. Through setting up the perforation part, prevent that the end cap body when using, the screw thread of connecting portion is direct to be contacted with template split screw rod hole pore wall, and damage connecting portion screw thread or template.
3. The plugging part of the plug is in a truncated cone shape with an inclined side wall, and the outer diameter of one end, which is opposite to the connecting part, of the plugging part is larger than that of the other end of the plugging part. So as to reduce the demoulding resistance of the template and facilitate the pulling out of the plugging part from the concrete when the template is dismantled. Meanwhile, cup-shaped counter-pulling screw holes can be formed in the concrete wall surface, and the surfaces of the hole walls of the counter-pulling screw holes are clean; the end part of the tension screw protective sleeve is more convenient to clear, so that the plugging efficiency of the tension screw hole is further improved.
drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
Fig. 1 is a schematic view of the plug structure of the present invention.
Names of various parts in the drawings:
The plug comprises a plug body 1, a plug body 2, a connecting part 3, a perforated part 4, a through hole 5, a fastening nut 6, an annular pit 7, a stepped hole 8, a shoulder 9 and a groove 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
And selecting a proper template according to the thickness and height of the concrete wall, and arranging opposite-pulling screw rod holes in the template, wherein the opposite-pulling screw rod holes are required to avoid the embedded bars in the concrete wall to be poured. The concrete formwork screw hole is internally penetrated with a plug, one end of the plug is provided with a threaded connection end, the other end of the plug is provided with a plugging part with the diameter larger than the screw hole diameter, and the middle part of the plug is penetrated with a through hole.
the plug is integrally formed by injection molding of PP or PA plastic, and the PP plastic has high-strength mechanical property and good high wear resistance; the PA plastic has abrasion resistance, chemical resistance and self-lubricating property, and the friction coefficient is low, so that the long service life of the plug body 1 can be ensured. And through the one shot forming of moulding plastics, but batch production, processing is simple and convenient, and the cost of manufacture is low.
And then the plug is fastened on the template through a fastening nut.
And erecting a concrete template on one side of the concrete pouring mold cavity, and inserting one end of a screw rod protective sleeve into the through hole of the plug on the side template, so that the screw rod protective sleeve is positioned in the space where the concrete pouring mold cavity is positioned, namely the plug is positioned on the inner side of the concrete template.
Erecting the concrete template on the other side of the concrete pouring die cavity, and enabling the side template to approach to the other end of the screw rod protective sleeve; and inserting the other end of the screw rod protective sleeve into the through hole of the upper plug of the concrete formwork at the side, and then supporting the concrete formwork at the side.
and penetrating the counter-pulling screw rod into the screw rod protective sleeve, sleeving a fastening nut on the screw rod threaded section, and fastening the concrete template through the counter-pulling screw rod to complete the erection of the concrete pouring mold cavity to be poured with concrete.
Example 2
a plug for preventing a screw perforation of a concrete template from leaking slurry is used for realizing the method in the embodiment 1. The plug comprises a plug body 1, wherein a plugging part 2 is arranged at one end of the plug body 1, and a connecting part 3 is arranged at the other end of the plug body 1. That is, the plugging portion 2 and the connecting portion 3 are provided at both ends of the plug body 1. The outer side wall of the connecting part 3 is provided with connecting threads, the connecting part 3 is used for connecting a fastening nut 6, and it is understood that the outer side wall of the connecting part 3 is provided with external threads matched with the threads of the fastening nut 6. The plugging portion 2 is used for plugging a template screw hole, specifically, the outer diameter of the connecting portion 3 is smaller than the outer diameter of the end, facing the connecting portion 3, of the plugging portion 2, and the outer diameter of the end, facing the connecting portion 3, of the plugging portion 2 is larger than the hole diameter of the screw hole in the template. The middle of the plug body 1 is provided with a through hole 5, the through hole 5 penetrates through the plugging portion 2 and the connecting portion 3, and the through hole 5 serves as a passage through which the template counter-pull screw rod protective sleeve penetrates. Wherein through-hole 5 should make the outer wall of split screw protective sheath pipe can closely laminate with 5 inner walls of through-hole when the preparation.
Further, a perforation 4 is provided between the blocking portion 2 and the connecting portion 3. That is, one end of the perforated portion 4 is fixedly connected to one end of the blocking portion 2, and the other end of the perforated portion 4 is fixedly connected to one end of the connecting portion 3. The perforating part 4 is cylindrical, the diameter of the perforating part 4 is larger than the outer diameter of the connecting part 3, and the diameter of the perforating part 4 is smaller than the outer diameter of one end, opposite to the connecting part 3, of the plugging part 2. It will be appreciated that the plug body 1 is inserted into the counter-pull screw holes of the formwork when in use. The through hole part 4 is arranged to prevent the screw thread of the connecting part 3 from directly contacting the hole wall of the template counter-pulling screw rod hole to damage the screw thread or the template when the plug body 1 is used.
Preferably, the length of the through hole part 4 is greater than the thickness of the concrete wall form, so as to more effectively protect the screw thread of the connecting part 3 and prolong the service life of the plug body 1. And the taper of the plugging part 2 is 15-20 degrees, so that the plugging part 2 is ensured to have enough structural strength while the plugging part 2 is ensured to have small pulling resistance.
Example 3
Based on embodiment 2, the plugging portion 2 is a truncated cone with an inclined side wall, and the outer diameter of one end of the plugging portion 2 facing the connecting portion 3 is larger than that of the other end of the plugging portion 2. So as to reduce the demoulding resistance of the template, and facilitate the extraction of the plugging part 2 from the concrete when the template is removed. Meanwhile, cup-shaped counter-pulling screw holes can be formed in the concrete wall surface, and the surfaces of the hole walls of the counter-pulling screw holes are clean; the end part of the tension screw protective sleeve is more convenient to clear, so that the plugging efficiency of the tension screw hole is further improved.
Further, an annular pit 7 is arranged at one end, connected with the perforation part 4, of the blocking part 2, the annular pit 7 is arranged concentrically with the perforation part 4, and the small diameter of the annular pit 7 is the same as the outer diameter of the perforation part 4. Stress concentration at the joint of the plugging portion 2 and the perforated portion 4 can be prevented, and sufficient strength of the plug body 1 can be ensured. The contact area between the end face of the blocking part 2 and the template can be reduced, and the contact area between the end part of the blocking part 2 and the template is smaller as the template surface has certain impurities, so that the precise fit between the blocking part 2 and the template is easily ensured. Therefore, the arrangement can ensure that the plugging part 2 is in close direct contact with the template, and avoid slurry leakage.
the fastening nut 6 used with the plug body 1 is a specific embodiment; 6 middle parts of fastening nut are equipped with step hole 8, 8 minor diameter sections in step hole be with the screw hole of connecting portion 3 adaptation, 8 major diameter sections in step hole are the unthreaded hole, 8 major diameter sections internal diameters in step hole are greater than the 4 external diameters of portion of wearing hole. So that the end of the fastening nut 6 can be tightly attached to the surface of the template without using a gasket, and the fastening efficiency of the plug body 1 is improved.
preferably, the fastening nut 6 is further provided with a shoulder 9, and the shoulder 9 is arranged on the same side as the large-diameter section of the stepped hole 8. The shoulder 9 has one end flush with the end of the fastening nut 6, i.e. the end of the shoulder 9 rests directly against the formwork surface in use. And a plurality of grooves 10 are formed in one side surface of the shoulder 9, which is on the same side with the outer end of the large-diameter section of the stepped hole 8. The groove 10 can be used as a gas-eliminating hole of the shoulder 9, and can reduce the contact area of the end surface of the shoulder 9 and the surface of the template, and reduce the friction resistance of the fastening screw cap 6 during fastening.
the method for pouring the concrete wall by adopting the concrete template screw perforation plug comprises the following steps:
Selecting a proper template according to the thickness and height of the concrete wall, and forming a counter-pulling screw rod hole in the template, wherein the counter-pulling screw rod hole is required to avoid the embedded bars in the concrete wall to be poured;
The connecting part of the plug body penetrates through a through hole in the template, so that the plugging part is positioned in the pouring mold cavity, and the plug body is fastened on the template by adopting a fastening nut, so that the fastening and installation of the plug body are completed;
the opposite-pulling screw rod protective sleeve is arranged in the through hole in a penetrating mode, and the opposite-pulling screw rod is arranged in the protective sleeve in a penetrating mode, so that the opposite-pulling screw rod protective sleeve is broken conveniently, and the end portion of the opposite-pulling screw rod protective sleeve is located inside the connecting portion;
Sleeving nuts on the counter-pulling screw rods to fix the template so as to complete the erection of a concrete pouring mold cavity and pouring concrete;
after the concrete wall is formed, loosening the counter-pulling screw rods, removing the template, and removing the plug body along with the template, so that cup-shaped counter-pulling screw rod holes are left on the surface of the concrete wall;
Inserting a rigid rod-shaped tool into the opposite-pulling screw rod protective sleeve, and breaking the protective sleeve exposed outside the concrete wall body, namely breaking the protective sleeve along the bottom of the cup-shaped opposite-pulling screw rod hole;
The dry and hard waterproof mortar is adopted to plug the holes of the counter-pull screws on the surface of the concrete wall, so that the effect of pouring the clear water formwork is achieved, and meanwhile, the anti-seepage performance of the concrete wall is ensured.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for preventing a concrete template screw perforation from leaking slurry is characterized by comprising the following steps:
a plug is arranged in a screw perforation of a concrete template in a penetrating way, one end of the plug is provided with a threaded connection end, the other end of the plug is provided with a plugging part with the diameter larger than the hole diameter of the screw perforation, and the middle part of the plug is provided with a through hole in a penetrating way;
Fastening the plug on the template through a fastening nut;
Erecting a concrete template on one side of the concrete pouring mold cavity, and inserting one end of the screw rod protective sleeve into the through hole of the plug so that the screw rod protective sleeve is positioned in the space of the concrete pouring mold cavity;
Erecting the concrete template on the other side of the concrete pouring mold cavity, inserting the other end of the screw rod protective sleeve into the through hole of the upper plug of the concrete template on the side, and then supporting the concrete template on the side;
And penetrating the counter-pulling screw rods into the screw rod protective sleeves, and fastening the concrete template through the counter-pulling screw rods to complete the erection of the concrete pouring mold cavity to be poured with concrete.
2. The method for preventing the screw perforation of the concrete form from leaking the slurry according to claim 1, wherein the plug is made of PP or PA plastic.
3. The method for preventing the concrete template screw from being perforated and leaking the slurry as claimed in claim 2, wherein the plug is integrally formed by injection molding.
4. A plug for preventing a concrete template screw from perforating and leaking slurry, which is used for realizing the method of any one of claims 1-3, and comprises a plug body (1), and is characterized in that: the plug body (1) is made of PP or PA plastic, one end of the plug body (1) is provided with a plugging part (2), the other end of the plug body (1) is provided with a connecting part (3), the outer side wall of the connecting part (3) is provided with connecting threads, and the connecting part (3) is used for connecting a fastening nut (6);
the plugging part (2) is used for plugging a template screw through hole, and the outer diameter of the connecting part (3) is smaller than the outer diameter of one end, opposite to the connecting part (3), of the plugging part (2);
The plug is characterized in that a through hole (5) is formed in the middle of the plug body (1), the through hole (5) penetrates through the plugging portion (2) and the connecting portion (3), and the through hole (5) serves as a passage through which the template split screw rod protective sleeve penetrates.
5. The concrete form screw perforation plug of claim 4, wherein: still be equipped with perforation portion (4) between shutoff portion (2) and connecting portion (3), perforation portion (4) are cylindrical, perforation portion (4) diameter is greater than connecting portion (3) external diameter, perforation portion (4) diameter is less than the external diameter that shutoff portion (2) just are connecting portion (3) one end.
6. the concrete form screw perforation plug of claim 5, wherein: the plugging portion (2) is in a truncated cone shape with an inclined side wall, and the outer diameter of one end, opposite to the connecting portion (3), of the plugging portion (2) is larger than that of the other end of the plugging portion (2).
7. The concrete form screw perforation plug of claim 5, wherein: the length of the through hole part (4) is larger than the thickness of the concrete wall formwork.
8. the concrete form screw perforation plug of claim 5, wherein: an annular concave pit (7) is arranged at one end, connected with the perforation part (4), of the blocking part (2), the annular concave pit (7) and the perforation part (4) are arranged concentrically, and the small diameter of the annular concave pit (7) is the same as the outer diameter of the perforation part (4).
9. The concrete form screw perforation plug of claim 5, wherein: fastening nut (6) middle part is equipped with step hole (8), step hole (8) path section be with connecting portion (3) adaptation's screw hole, step hole (8) path section is the unthreaded hole, step hole (8) path section internal diameter is greater than piercing portion (4) external diameter.
10. the concrete form screw perforation plug of claim 9, wherein: fastening nut (6) still are equipped with convex shoulder (9), convex shoulder (9) and step hole (8) major diameter section homonymy, convex shoulder (9) one end tip and fastening nut (6) tip parallel and level, a side of convex shoulder (9) and step hole (8) major diameter section outer end homonymy is equipped with a plurality of recesses (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962348.1A CN110565954A (en) | 2019-10-11 | 2019-10-11 | method and plug for preventing concrete template screw perforation from leaking slurry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910962348.1A CN110565954A (en) | 2019-10-11 | 2019-10-11 | method and plug for preventing concrete template screw perforation from leaking slurry |
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| CN110565954A true CN110565954A (en) | 2019-12-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982978A (en) * | 2021-02-26 | 2021-06-18 | 中国十七冶集团有限公司 | Plastic template hole plug and using method thereof |
| CN113502932A (en) * | 2021-07-30 | 2021-10-15 | 金陵科技学院 | Assembly kit for plugging concrete outer wall bolt hole |
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