CN2090399U - Plastic bearing block to ensure predetermined thickness of reinforced bar protective course - Google Patents
Plastic bearing block to ensure predetermined thickness of reinforced bar protective course Download PDFInfo
- Publication number
- CN2090399U CN2090399U CN 91203032 CN91203032U CN2090399U CN 2090399 U CN2090399 U CN 2090399U CN 91203032 CN91203032 CN 91203032 CN 91203032 U CN91203032 U CN 91203032U CN 2090399 U CN2090399 U CN 2090399U
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- CN
- China
- Prior art keywords
- cushion block
- protective layer
- plastic
- cushion
- bayonet socket
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a plastic cushion block for the civil engineering, and the protective layer of reinforced concrete is formed through the plastic cushion block. The plastic cushion block is characterized in that the dimension of the part playing the supporting function of the plastic cushion block is the same as the thickness dimension of the protective layer, and the thickness dimension is prescribed by the construction sepcification. As respectively provided with a bayonet which forms a circular arc-shaped groove, the plastic cushion block can be tightly clamped on reinforced bars or support under the reinforced bars; accordingly, when concrete is poured, the protective layer of the reinforced concrete can be accurately formed; the engineering accidents of bar exposure, fissures, etc. are avoided.
Description
It is a kind of for the plastic cushion that uses in the civil works that the utility model provides, and it is mainly used among reinforced concrete beam, post, the wallboard, to guarantee the formation of reinforced concrete protective layer.
The thickness of protection tier of regulation beam, post is 25mm in existing " reinforced concrete structural design specification " and " structure of reinforced concrete and the standards of acceptance ", and thickness is 15mm greater than the wallboard thickness of protection tier of 100mm.And how to guarantee in construction that the formation of this protective layer thickness, " reinforced concrete structure " that at present domestic each universities and colleges compile and " building operations " teaching material and each design and research institute writes " relevant books such as building operations handbook are not all mentioned.And some common ways are arranged at the construction field (site): biscuit is broken into the thick sheet of 25mm, is cut into the piece of 3～5cm then, in piece, insert thin wire again, treat that briquet solidifies after, promptly become and can supply beam.The cushion block of post construction, the construction beam.During post, with this base cushion block colligation on the reinforcing bar of the reinforcing bar cage outside, at this moment support shuttering again, make this cushion block form a protective layer thickness between template and reinforcing bar, placing of concrete vibrates with vibrating spear while watering then, because the structure of base cushion block is square, prick with iron wire and just can be completely fixed on reinforcing bar, thereby under the effect of vibrating spear, many being shaken fallen to come off or turned to the reinforcing cage inboard; Also have some not too regular ways, be exactly at the scene with some useless bases of hand-sort and masonry fragment pad under reinforcing bar, be used for forming protective layer thickness, under the vibrating spear effect, cushion block is shaken this method equally.More than two kinds of practices can not guarantee that all reinforced concrete protective layer forms exactly, thereby influence its workmanship.
The purpose of this utility model is to provide a kind of novel plastic cushion at the deficiencies in the prior art, and it divides four kinds of form of structure according to same inventive concept, satisfies beam respectively.The reinforcing bar location of post and wallboard different parts and the formation of concrete cover.
The purpose of this utility model is achieved in that the plastic cushion of these four kinds of structural shapes must satisfy following principle simultaneously: 1. can be stuck on the reinforcing bar easily or bearing bar; 2. no matter how cushion block rotates, plastic cushion can guarantee all the time that the spacing between reinforcing bar and the template meets the thickness requirement of topping.Based on above two principles, press beam.The stressed difference of post and wallboard and the requirement difference of topping, the utility model provide four kinds of plastic cushion SK--1 type, SK--2 type, SK--3 type SK--4 types that structural shape is different, and wherein the support size of SK--1,2,3 types is 25mm.The protective layer thickness size that promptly shows regulation and stipulation; The support size of SK--4 type is 15mm, the protective layer thickness size that promptly shows regulation and stipulation, at the construction field (site), after treating that reinforcing cage or reinforced mesh are carried out, by certain spacing, beam only needed the SK--1 type moved along opening part be stuck on the beam lower rebar, the SK--2 type is moved along opening part be stuck in the accurate formation that can guarantee topping around the beam on the reinforcing bar of beam bight fully; Coupled columns only needs the SK--3 type moved along opening part and is stuck on the reinforcing bar of bight, can guarantee post like this after a good template, during first placing of concrete, accurately forms the post reinforcement cover; Concerning wallboard, only need the SK--4 type is stuck on the reinforcing bar by quincunx, a good template, first placing of concrete can accurately form concrete cover.Four kinds of cushion blocks all adopt elasticity better, plastic injection-moulded the forming that intensity is moderate.
Product structure of the present utility model has determined its advantage: first, fourth kind of plastic cushion all can be realized suitability for industrialized production.The second, at the construction field (site) easy and simple to handle, the work efficiency height.Three, save cost, satisfy the needs of different operating modes.
Figure one is a SK--1 type cushion block perspective view
Figure two is SK--2 type cushion block perspective views
Figure three is SK--3 type cushion block perspective views
Figure four is SK--4 type cushion block perspective views
In detail structure of the present utility model is further described below in conjunction with accompanying drawing.
Referring to figure one, two three vertical angle seams are arranged at the bottom of plastic cushion (1): the characteristics of this seam are that assurance top bayonet socket is moved easily, and this cushion block top is stuck on the reinforcing bar (2), and reinforcing bar becomes tight fit with the cushion block bayonet socket.Cushion block top bayonet socket be "
" shape.When the reinforcing bar top was stuck on the cushion block, the distance of its bottom and cushion block bottom surface was equal to the protective layer thickness size of regulation and stipulation.
Referring to figure two, plastic cushion is equipped with identical garden arc fluting up and down, but vertical each other, and cushion block integral body is the garden column, the stage casing be provided with "
" the shape spoke.The distance of base to this cushion block bottom surface of last notch is equal to the protective layer thickness size of regulation and stipulation.
Referring to figure three; the plastic cushion whole profile is a garden shape; this is in order to guarantee that it is stuck on the pillar reinforcing bar; when vibrating spear vibrates base; no matter how it rotates; radial spoke is arranged to curve-like and linearity at interval in the middle of all guaranteeing topping size constancy cushion block, to guarantee that reinforcing bar is along fashionable unlikely destruction of open card or distortion.The bayonet socket place be "
" shape.
Referring to figure four, this cushion block is mainly used among the wallboard.Less because of reinforcing bar among the wallboard, protective layer thickness is little than the post topping, thereby this cushion block shape is also little than the SK--3 type, and its radial spoke is linearity entirely, the bayonet socket place be "
" shape.Overall profile is the garden shape.
More than four kinds of cushion blocks all adopt elasticity is better, intensity is moderate plastics through injection mo(u)lding.
Claims (6)
1, a kind of plastic cushion of guaranteeing thickness of protection tier is characterized in that: cushion block top be provided with "
" the shape bayonet socket, the bottom is provided with two three vertical angle seams, and the bayonet socket bottom surface is equal to the distance of the cushion block bottom surface protective layer thickness size with the building operations regulation and stipulation.
2, a kind of plastic cushion of guaranteeing thickness of protection tier, it is characterized in that: cushion block integral body is the garden column, cushion block is provided with identical garden arc fluting up and down, but vertical each other, the stage casing be provided with "
" the shape spoke, the distance of last notch bottom surface to this cushion block bottom surface is equal to the protective layer thickness size of building operations regulation and stipulation.
3, a kind of plastic cushion of guaranteeing thickness of protection tier is characterized in that: the cushion block whole profile is for circular.Radial spoke is arranged to curve-like and linearity at interval in the middle of the cushion block, the bayonet socket place be "
" shape, the distance of bayonet socket bottom surface to this cushion block bottom surface is equal to the protective layer thickness size of building operations regulation and stipulation.
4, a kind of plastic cushion of guaranteeing thickness of protection tier is characterized in that: the cushion block whole profile is for circular.Radial spoke is linearity entirely in the middle of the cushion block, the bayonet socket place be "
" shape, the distance of bayonet socket bottom surface to this cushion block bottom surface is equal to the protective layer thickness size of building operations regulation and stipulation.
5, according to claim 1 or 2 or 3 or 4 described plastic cushions, it is characterized in that: the protective layer thickness of building operations regulation and stipulation is of a size of 15mm or 25mm.
6, according to claim 1 or 2 or 3 or 4 described plastic cushions, it is characterized in that: plastic injection-moulded the becoming one that cushion block is better by elasticity, intensity is moderate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91203032 CN2090399U (en) | 1991-03-04 | 1991-03-04 | Plastic bearing block to ensure predetermined thickness of reinforced bar protective course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91203032 CN2090399U (en) | 1991-03-04 | 1991-03-04 | Plastic bearing block to ensure predetermined thickness of reinforced bar protective course |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2090399U true CN2090399U (en) | 1991-12-11 |
Family
ID=4913437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91203032 Withdrawn CN2090399U (en) | 1991-03-04 | 1991-03-04 | Plastic bearing block to ensure predetermined thickness of reinforced bar protective course |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2090399U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729615A (en) * | 2016-02-29 | 2016-07-06 | 刘克元 | Steel-framework bottom-free arched cement fabricated piece special for ditch and production method of steel-framework bottom-free arched cement fabricated piece |
| CN110541522A (en) * | 2019-07-26 | 2019-12-06 | 广西建工集团建筑工程总承包有限公司 | Construction method for monitoring thickness of floor slab negative reinforcement protective layer |
| CN111088874A (en) * | 2020-03-09 | 2020-05-01 | 中建四局第三建设有限公司 | Vertical stop device of wall body reinforcing bar |
-
1991
- 1991-03-04 CN CN 91203032 patent/CN2090399U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729615A (en) * | 2016-02-29 | 2016-07-06 | 刘克元 | Steel-framework bottom-free arched cement fabricated piece special for ditch and production method of steel-framework bottom-free arched cement fabricated piece |
| CN110541522A (en) * | 2019-07-26 | 2019-12-06 | 广西建工集团建筑工程总承包有限公司 | Construction method for monitoring thickness of floor slab negative reinforcement protective layer |
| CN111088874A (en) * | 2020-03-09 | 2020-05-01 | 中建四局第三建设有限公司 | Vertical stop device of wall body reinforcing bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |