CN217711449U - Precast beam type stair tread - Google Patents
Precast beam type stair tread Download PDFInfo
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- CN217711449U CN217711449U CN202220507173.2U CN202220507173U CN217711449U CN 217711449 U CN217711449 U CN 217711449U CN 202220507173 U CN202220507173 U CN 202220507173U CN 217711449 U CN217711449 U CN 217711449U
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Abstract
The utility model discloses a prefabricated beam type stair tread, wherein the prefabricated stair tread is provided with a jack and a first clamping structure; the precast concrete step is provided with a plug, a second clamping structure, a third clamping structure and a fourth clamping structure; the plug is inserted into the jack, and the second clamping structure is clamped and connected with the first clamping structure and is used for connecting the precast concrete step and the precast ladder beam; the adjacent precast concrete steps are connected with one another in a clamping manner through a third clamping structure of one precast concrete step and a fourth clamping structure of the other precast concrete step; the structure is reasonable and simple, the assembly and disassembly are convenient, the components are easy to replace and maintain, and the cost is saved.
Description
Technical Field
The utility model relates to a building structure technical field specifically is a precast beam formula stair tread.
Background
At present, the assembly type concrete building is developed very rapidly in China, and the assembly type technology is popularized and applied vigorously in various places.
In prefabricated buildings, prefabricated stairways are one of the most used types of prefabricated components. There are situations where stairways are prefabricated, whether in a fabricated frame structure, or in a fabricated shear wall structure or other fabricated structural form.
The most common type of prefabricated stairway in the prior art is a plate stair, which is simple to prefabricate and convenient to hoist and is adopted by most projects. However, such prefabricated staircases also have a number of disadvantages, such as: the mould cost is higher, because stair itself shape is irregular, consequently also can lead to the shape of mould more complicated, and then has increased the cost of mould, and after using several years to prefabricated stair simultaneously, damage may take place for local positions such as marking time, need whole stair replacement to the board stair, produce great adverse effect to the cost equally.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a precast beam formula stair tread, the above-mentioned defect that prior art's board stair existed is overcome to the purpose, makes it be convenient for maintain or change local part, reduce cost.
In order to achieve the above object, the utility model provides a following technical scheme:
a precast beam stair tread comprising:
the prefabricated ladder beam is provided with a jack and a first clamping structure;
prefabricating a concrete step, and arranging a plug, a second clamping structure, a third clamping structure and a fourth clamping structure;
the plug is inserted into the jack, and the second clamping structure is clamped and connected with the first clamping structure and used for connecting the precast concrete step and the precast ladder beam;
and the adjacent precast concrete steps are connected with the fourth clamping structure of the other precast concrete step through the third clamping structure of one precast concrete step in a clamping manner.
Furthermore, the first clamping structure is a first concave structure, the second clamping structure is a first convex structure, and the first convex structure is clamped in the first concave structure.
Furthermore, the first concave structure is a right-angle concave step, the first convex structure is a right-angle convex step, and the right-angle convex step is clamped and arranged in the right-angle concave step.
Furthermore, the first clamping structure is arranged on the top surface of the prefabricated ladder beam.
Furthermore, the second clamping structure is arranged on the bottom surface of the precast concrete step.
Furthermore, the third clamping structure is a groove, and the fourth clamping structure is a convex edge.
Furthermore, the third clamping structure and the fourth clamping structure are respectively arranged on two sides of the precast concrete step.
Furthermore, the third clamping structure and the fourth clamping structure are respectively arranged on the top surface of one side of the precast concrete step and the bottom surface of the other side of the precast concrete step.
Furthermore, the third clamping structure is arranged on the top surface of the precast concrete step and positioned at one side below the bottom surface of the precast concrete step at the upper stage, and the fourth clamping structure is arranged on the bottom surface of the precast concrete step and positioned at one side above the top surface of the precast concrete step at the lower stage.
Furthermore, the number of the prefabricated ladder beams is two, and each prefabricated ladder beam is provided with a row of jacks; the quantity of plug is two rows, and two rows of jacks and plug all distribute at the width direction of prefabricated ladder roof beam on the symmetric distribution, and all evenly distributed in the length direction of prefabricated ladder roof beam.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the prefabricated beam type stair tread of the utility model can split the stair into a plurality of regular components with reasonable and simple structures for production, thereby greatly reducing the cost of the mold, effectively reducing the construction cost of the project and having good economic benefit;
2. the utility model discloses a prefabricated beam type stair tread, its split formula structure is convenient for change and maintain local part, and it can directly replace its part of damaging after certain part damages, can not exert an influence to other parts, has reduced prefabricated staircase's maintenance cost.
Drawings
Fig. 1 is a schematic structural view of a precast beam type stair tread according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural view of a prefabricated ladder beam according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is a schematic view of a precast concrete step structure according to an embodiment of the present invention;
fig. 6 is a cross-sectional view taken along line C-C in fig. 5.
In the figure: 1. prefabricated step beam, 2, precast concrete are marked time, 3, jack, 4, plug, 5, first block structure, 6, second block structure, 7, third block structure, 8, fourth block structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, the precast beam type stair tread comprises a precast stair beam 1 and a precast concrete step 2, and referring to fig. 3 and 4, the precast stair beam 1 is provided with a jack 3 and a first clamping structure 5; referring to fig. 5 and 6, the precast concrete step 2 is provided with a plug 4, a second clamping structure 6, a third clamping structure 7 and a fourth clamping structure 8; the plug 4 is inserted into the jack 3, and the second clamping structure 6 is clamped and connected with the first clamping structure 5 and is used for connecting the precast concrete step 2 with the precast ladder beam 1; the adjacent precast concrete steps 2 are connected with the other fourth clamping structure 8 through the third clamping structure 7 of one step in a clamping manner.
The precast beam type stair tread of this embodiment, the plug 4 of precast concrete step 2 inserts in the jack 3 of precast stair beam 1, and simultaneously, the second block structure 6 of precast concrete step 2 is connected with the 5 block of first block structure of precast stair beam 1, realizes the two assembled joint of precast concrete step 2 and precast stair beam 1. The adjacent upper and lower two-stage precast concrete steps 2 are connected with the other fourth clamping structure 8 through the third clamping structure 7, so that the connection between the adjacent upper and lower two-stage precast concrete steps 2 is realized.
Referring to fig. 6, in some embodiments, the first engaging structure 5 is a first concave structure, and the second engaging structure 6 is a first convex structure, and the first convex structure is engaged with and disposed in the first concave structure. The first evagination structure block of precast concrete 2 of marking time sets up in the first sunk structure of precast ladder beam 1, realizes precast concrete and marks time 2 and the two assembled joint of precast ladder beam 1.
In some embodiments, the second engaging structure 6 is disposed on the bottom surface of the precast concrete step 2.
In some embodiments, the first concave structure is a right-angled concave step, the first convex structure is a right-angled convex step, and the right-angled convex step is arranged in the right-angled concave step in a clamping manner. The right-angle convex steps of the precast concrete steps 2 are clamped in the right-angle concave steps of the precast ladder beam 1.
In other embodiments, a right-angle raised step is arranged at the right end of the bottom surface of the precast concrete step 2.
Here, the left and right directions refer to the left and right directions shown in fig. 1 to 6, respectively.
Referring to fig. 4, in some embodiments, a first snap structure 5 is provided on the top surface of the precast ladder beam 1.
In other embodiments, the right-angled recessed steps are provided on the top surface of the prefabricated ladder beam 1 at the receptacles 3.
Referring to fig. 6, in some embodiments, a third engagement structure 7 and a fourth engagement structure 8 are respectively disposed at both sides of the precast concrete step 2.
In some embodiments, a third engaging structure 7 and a fourth engaging structure 8 are respectively disposed on one side top surface and the other side bottom surface of the precast concrete step 2.
In some embodiments, the third engaging structure 7 is disposed on the top surface of the precast concrete step 2 at a side below the bottom surface of the upper precast concrete step 2, and the fourth engaging structure 8 is disposed on the bottom surface of the precast concrete step 2 at a side above the top surface of the lower precast concrete step 2.
In some embodiments, the third engaging structure 7 is a groove, and the fourth engaging structure 8 is a ledge. The adjacent upper and lower two stages of precast concrete treads 2 are clamped in the other groove through the convex edge of one of the precast concrete treads, so that the connection between the adjacent upper and lower two stages of precast concrete treads 2 is realized.
In other embodiments, the groove is arranged on the left side of the top surface of the precast concrete step 2, the convex edge is arranged on the right side of the bottom surface of the precast concrete step 2, and the convex edge of the precast concrete step 2 at the upper stage is clamped in the groove of the precast concrete step 2 at the lower stage, so that the connection between the two is realized.
In other embodiments, the groove is a rectangular groove and the ledge is a rectangular ledge.
Referring to fig. 1, in some embodiments, the number of the prefabricated ladder beams 1 is two, and each prefabricated ladder beam 1 is provided with a row of jacks 3. Namely, the jacks 3 and the plugs 4 are both arranged in two rows, and the jacks 3 and the plugs 4 are symmetrically distributed in the width direction of the prefabricated ladder beam 1 and are uniformly distributed in the length direction of the prefabricated ladder beam 1.
In other embodiments, the number of jacks 3 and plugs 4 in each row is equal, and each is at least two. The jack 3 is a round hole, and the plug 4 is a cylinder.
The embodiment of the utility model provides a precast beam formula stair tread, precast concrete that precast ladder beam 1 that has two rows of a plurality of jacks 3 by the top surface and bottom surface have two rows of a plurality of plugs 4 is marked time 2 and is made up and form, precast concrete is marked time 2 and is horizontal triangle-shaped cylinder, its top surface and right side are the right angle face, the bottom surface is the inclined plane, precast concrete is marked time 2 and is inserted jack 3 in through plug 4, the snap-on is on precast ladder beam 1, realize the plug and play of precast beam formula stair tread.
The top surface of the prefabricated ladder beam 1 is provided with a plurality of right-angle sunken steps, the right-angle sunken steps are matched with the right-angle raised steps on the bottom surface of the prefabricated concrete step 2, the jack 3 is positioned at the center of the right-angle raised steps, and the depth of the jack 3 is larger than or equal to the height of the plug 4.
The left and right two-stage precast concrete steps 2 which are adjacent up and down are clamped in the rectangular groove through the rectangular convex edges, so that mutual engagement is realized.
The embodiment of the utility model provides a precast beam formula stair tread, before this stair production, mark time 2 for twice precast ladder beam 1 and a plurality of triangle-shaped precast concrete with its split, precast concrete marks time 2 bottoms at the prefabricated right angle protruding step that is the evagination right angle shape of the thickness within range of precast ladder beam 1, marks time the central point of 2 bottom surfaces at precast concrete and puts pre-buried cylindrical metal plug 4. A plurality of right-angle recessed steps which are concave right-angle-shaped are prefabricated on the top surface of the prefabricated ladder beam 1 according to a preset distance, the right-angle recessed steps of the prefabricated ladder beam 1 are matched with the right-angle raised steps of the prefabricated concrete step 2, the cylindrical insertion holes 3 are reserved in the center positions of the right-angle raised steps, and the diameters and the depths of the insertion holes 3 are respectively matched with the outer diameters and the lengths of the plugs 4. During installation, after the prefabricated ladder beams 1 at the two ends are fixed to a preset position, the prefabricated concrete steps 2 are placed and installed in a mode from bottom to top until the installation of the last prefabricated concrete step 2 is completed.
The embodiment of the utility model provides a precast beam formula stair tread, it can be by the precast concrete of twice precast ladder roof beam 1 and a plurality of triangle-shaped 2 fixed modes of marking time through 4 disect insertions jacks of plug 3 constitute precast stair, its rational in infrastructure succinct, assembly and disassembly is convenient, and part interchangeability is good, saves the cost.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A precast beam stair tread, comprising:
the prefabricated ladder beam is provided with a jack and a first clamping structure;
prefabricating a concrete step, and arranging a plug, a second clamping structure, a third clamping structure and a fourth clamping structure;
the plug is inserted into the jack, and the second clamping structure is clamped and connected with the first clamping structure and used for connecting the precast concrete step with the precast ladder beam;
and the adjacent precast concrete steps are connected with the fourth clamping structure of the other precast concrete step through the third clamping structure of one precast concrete step in a clamping manner.
2. The precast beam stair riser of claim 1, wherein the first engaging structure is a first recessed structure and the second engaging structure is a first raised structure, the first raised structure being engaged within the first recessed structure.
3. The precast beam stair riser of claim 2 wherein the first recessed structure is a right angle recessed step and the first raised structure is a right angle raised step snap fit disposed within the right angle recessed step.
4. The precast beam stair riser of claim 2, wherein the first snap structure is provided on a top surface of the precast ladder beam.
5. The precast beam stair tread of claim 4, wherein the second snap structure is disposed at the precast concrete tread floor.
6. The precast beam stair riser of claim 1 wherein the third snap feature is a groove and the fourth snap feature is a ledge.
7. The precast beam stair tread of claim 1, wherein the third and fourth snap structures are disposed on either side of the precast concrete step.
8. The precast beam stair tread of claim 7, wherein the third and fourth snap structures are provided on one side top and the other side bottom of the precast concrete step, respectively.
9. The precast beam stair riser of claim 8, wherein the third snap-fit structure is provided on the top surface of the precast concrete step at a side below the bottom surface of the precast concrete step of the previous stage, and the fourth snap-fit structure is provided on the bottom surface of the precast concrete step at a side above the top surface of the precast concrete step of the next stage.
10. The precast beam stair tread of any one of claims 1 to 9, wherein the number of the precast ladder beams is two, and a row of the insertion holes is provided on each of the precast ladder beams; the number of the plugs is two rows, the two rows of the jacks and the plugs are symmetrically distributed in the width direction of the prefabricated ladder beam, and are uniformly distributed in the length direction of the prefabricated ladder beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220507173.2U CN217711449U (en) | 2022-03-09 | 2022-03-09 | Precast beam type stair tread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220507173.2U CN217711449U (en) | 2022-03-09 | 2022-03-09 | Precast beam type stair tread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217711449U true CN217711449U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220507173.2U Active CN217711449U (en) | 2022-03-09 | 2022-03-09 | Precast beam type stair tread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217711449U (en) |
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- 2022-03-09 CN CN202220507173.2U patent/CN217711449U/en active Active
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