CN217268433U

CN217268433U - Assembled segmentation scissors ladder

Info

Publication number: CN217268433U
Application number: CN202220461557.5U
Authority: CN
Inventors: 郑启智; 张福敦; 曾佳鹏
Original assignee: Jianmeng Design Group Co ltd
Current assignee: Jianmeng Design Group Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-08-23
Anticipated expiration: 2032-03-04

Abstract

The utility model relates to a building engineering technical field discloses an assembled segmentation scissors ladder, including tie-beam and two crisscross prefabricated bench that set up, the tie-beam is located the staggered position of two prefabricated benches, prefabricated bench includes bench and lower bench, the low side overlap joint of going up the bench is on the high-end of bench down, the tie-beam is located the high-end below of bench down, it has first cement mortar screed-coat to fill between the low side of going up the bench and the high-end of bench down, be equipped with second cement mortar screed-coat between the high-end of tie-beam and lower bench, be equipped with on the tie-beam and be fixed with two sets of cotter, every group cotter corresponds a prefabricated bench, the cotter passes the inside that extends to the connecting hole of bench, the utility model discloses well prefabricated bench segmentation sets up convenient transportation and installation, goes up the bench and connects through the cotter with lower bench, play the effect of strengthening the support.

Description

Assembled segmentation scissors ladder

Technical Field

The utility model relates to a building engineering technical field, especially an assembled segmentation scissors ladder.

Background

Prefabricated stairways have become one of the most common prefabricated concrete elements in the assembly of monolithic building works. Because of its installation is convenient, uses after the dress, and the advantage such as finished product effect is good is widely adopted by engineering construction unit. The prefabricated staircase is adopted in the construction process, so that the labor can be greatly saved and the construction quality can be improved. Prefabricated stairs are classified according to the use form, and the most common forms are convoluted double-track stairs and bidirectional scissor stairs.

In conventional prefabricated scissors bench, the general weight of stair that length is greater than 5 meters all can be more than 5 tons, causes links such as production (prefabrication), transportation, hoist and mount, installation, construction degree of difficulty to increase, can effectively solve above-mentioned problem through the segmentation. In the existing segmented prefabricated ladder sections, shear-resistant weak areas are easily formed at conventional joint connection positions, and the assembled scissor ladder has certain potential safety hazards.

SUMMERY OF THE UTILITY MODEL

Therefore, the assembled segmented scissors ladder needs to be provided, and the problem that the existing segmented scissors ladder is unstable in connection is solved.

For realizing above-mentioned purpose, the utility model provides an assembled segmentation scissors ladder, including tie-beam and two crisscross prefabricated bench that set up, the tie-beam is located the staggered position of two prefabricated benches, prefabricated bench includes bench and lower bench, and the low side overlap joint of going up the bench is on the high-end of bench down, the tie-beam is located the high-end below of bench down, it has first cement mortar screed-coat to fill between the low side of going up the bench and the high-end of lower bench, first cement mortar screed-coat is located the high centre position on the lower side of a ladder, be equipped with second cement mortar screed-coat between the high-end of tie-beam and lower bench.

The connecting beam is provided with two groups of pin keys, each group of pin keys corresponds to one prefabricated ladder section, the low end of the upper ladder section and the high end of the lower ladder section are provided with connecting holes corresponding to the positions of the pin keys, the pin keys penetrate through the second cement mortar leveling layer, the connecting holes of the lower ladder section and the first cement mortar leveling layer from bottom to top and extend to the inside of the connecting holes of the upper ladder section, the connecting holes of the upper ladder section and the lower ladder section are filled with grouting materials, and a mortar layer is plugged above the connecting holes of the upper ladder section.

Further, the connecting beam is an I-shaped steel beam. The source of the I-shaped steel beam is wide, and the installation and adjustment of the pin key are convenient.

Further, the relative both sides face of tie-beam is fixed with the slope brace table, and two slope brace tables dislocation set, two slope brace tables are corresponding with two prefabricated bench positions, the lower surface of bench under the laminating of slope brace table. The inclined supporting platform supports the lower ladder section, plays a role in supporting and fixing the connection of the upper ladder section and the lower ladder section, and solves the problem that the joint is weak in shearing resistance.

Further, the second cement mortar leveling layer extends to a position between the inclined support platform and the lower surface of the lower ladder section. Extension that second cement mortar screed-coat extends for the bench under the slope supporting bench can closely support, guarantees the stability of prefabricated bench after the equipment.

Furthermore, the number of each group of pin keys is two, and the two groups of pin keys are arranged in a staggered mode. Two sets of pin keys of dislocation set make the stress position of tie-beam and two prefabricated bench not on same axis, and two atresss can carry out offsetting of certain degree, guarantee the temperature nature of scissors ladder installation.

Further, a bolt is fixed at the top end of the pin key, and the connecting hole is in a circular truncated cone shape with a large upper part and a small lower part. After the grouting material is filled in the connecting holes, the pin keys are fixed.

Further, an anchor plate is fixed at the bottom end of the pin key. The anchor plate is used for fixing the pin key.

Furthermore, sealing materials are arranged on two sides of the second cement mortar leveling layer.

Furthermore, sealing materials are arranged on one side, close to the upper bench, of the first cement mortar leveling layer, and elastic materials and plugging materials are sequentially arranged on one side, close to the lower bench, of the first cement mortar leveling layer from inside to outside. The sealing material, the elastic material and the plugging material are all used for preventing the cement mortar leveling layer from leaking.

Furthermore, reserved holes are reserved at the high end of the upper ladder section and the low end of the lower ladder section. The preformed holes are used for being connected with the external ladder beams.

The technical scheme has the following beneficial effects:

the utility model discloses in, the fastness that ladder section and lower ladder section are connected can be guaranteed to the round pin key on the tie-beam passing ladder section and lower ladder section in proper order, and first cement mortar screed-coat and second cement mortar screed-coat make the prefabricated ladder section of equipment have better horizontality, guarantee the stationarity after the stair equipment. First cement mortar screed-coat is located the middle position on the lower side of a ladder height, not only guarantees that the bench board end plate is thick to have the thickness more than 100mm, can prevent the infiltration moreover in normal use, and more importantly can further promote net height.

Drawings

Fig. 1 is a top view of the assembled segmented scissor ladder of embodiment 1.

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 according to example 1.

Fig. 3 is a cross-sectional view of the junction of the upper and lower flights of embodiment 1.

Fig. 4 is a structural view of a connection beam described in embodiment 1.

Fig. 5 is a cross-sectional view of the assembled segmented scissor ladder of embodiment 2.

Fig. 6 is a cross-sectional view of the junction of the upper and lower flights of embodiment 2.

Fig. 7 is a structural view of a connection beam described in embodiment 2.

Description of reference numerals:

1. a connecting beam; 11. inclining the support platform; 12. a pin key; 13. an anchor plate; 2. prefabricating a bench; 21. climbing a bench; 22. descending a bench; 23. reserving a hole; 24. connecting holes; 25. a mortar layer; 3. a first cement mortar leveling layer; 31. an elastic material; 32. a plugging material; 4. a second cement mortar leveling layer; 5. and (3) sealing the material.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Example 1

Referring to fig. 1-4, the present embodiment provides an assembled segmented scissor ladder, including a connection beam 1 and two prefabricated ladders 2 arranged in a staggered manner, where the connection beam 1 is located at a staggered position of the two prefabricated ladders 2, the prefabricated ladder 2 includes an upper ladder 21 and a lower ladder 22, a low end of the upper ladder 21 is lapped on a high end of the lower ladder 22, the connection beam 1 is located below the high end of the lower ladder 22, a first cement mortar leveling layer 3 is filled between the low end of the upper ladder 21 and the high end of the lower ladder 22, a second cement mortar leveling layer 4 is disposed between the connection beam 1 and the high end of the lower ladder 22,

the connecting beam 1 is provided with two groups of pin keys 12, each group of pin keys 12 corresponds to one prefabricated ladder section 2, the low end of the upper ladder section 21 and the high end of the lower ladder section 22 are provided with connecting holes 24 corresponding in position, the pin keys 12 penetrate through the second cement mortar leveling layer 4, the connecting holes 24 of the lower ladder section 22 and the first cement mortar leveling layer 3 from bottom to top and extend to the inside of the connecting holes 24 of the upper ladder section 21, the connecting holes 24 of the upper ladder section 21 and the lower ladder section 22 are filled with grouting materials, and a mortar layer 25 is plugged above the connecting holes 24 of the upper ladder section 21.

In this embodiment, the number of each set of pin keys 12 is two, and the two sets of pin keys 12 are arranged in a staggered manner. Two sets of round pin keys 12 of dislocation set make tie-beam 1 not on same axis with the atress position of two prefabricated bench 2, and two atresss can carry out offsetting of certain degree, guarantee the stability of scissors ladder installation.

The top end of the pin key 12 is fixed with a bolt, and the connecting hole 24 is circular truncated cone-shaped with a large top and a small bottom. The fixing of the pin key 12 is facilitated after the connecting hole 24 is filled with grouting material. An anchor plate 13 is fixed at the bottom end of the pin key 12. The anchor plate 13 is used to fix the pin key 12.

And sealing materials 5 are arranged on two sides of the second cement mortar leveling layer 4. The sealing material 5 is arranged on one side, close to the upper stair section 21, of the first cement mortar leveling layer 3, and the elastic material 31 and the blocking material 32 are sequentially arranged on one side, close to the lower stair section 22, of the first cement mortar leveling layer 3 from inside to outside. The sealing material 5, the elastic material 31 and the plugging material 32 are all used for preventing the leakage of the cement mortar leveling layer. Reserved holes 23 are reserved at the high end of the upper ladder section 21 and the low end of the lower ladder section 22. The preformed holes 23 are intended to be interconnected with the outer ladder beams.

Example 2

Referring to fig. 5-7, a fabricated segmented scissor ladder, different from embodiment 1, in this embodiment, two opposite side surfaces of the connecting beam 1 are fixed with inclined support platforms 11, the two inclined support platforms 11 are arranged in a staggered manner, the two inclined support platforms 11 correspond to the two prefabricated ladder sections 2, and the inclined support platforms 11 are attached to the lower surface of the lower ladder section 22.

Slope brace table 11 and tie-beam 1 structure as an organic whole because two prefabricated bench 2 are crisscross to be set up, consequently two slope brace tables 11 on the tie-beam 1 also are dislocation set, from this two prefabricated bench 2 of support connection that tie-beam 1 can be better.

The second cement mortar screed 4 extends between the inclined support platform 11 and the lower surface of the lower flight 22. Extension that second cement mortar screed-coat 4 extends for bench 22 under slope supporting bench 11 can closely support guarantees the stability of prefabricated bench 2 after the equipment.

The utility model discloses in, slope supporting bench 11 supports lower ladder section 22, played the enhancement fixed action to going up ladder section 21 and lower ladder section 22's connection, the problem of the junction weak that shears has been solved, divide into two sections short ladder sections with prefabricated ladder section 2- -go up ladder section 21 and lower ladder section 22, more make things convenient for the transportation of prefabricated ladder section 2, the installation, and pin key 12 passes last ladder section 21 and lower ladder section 22 in proper order on tie-beam 1 can guarantee the fastness that ladder section 21 and lower ladder section 22 are connected, first cement mortar screed-coat 3 and second cement mortar screed-coat 4 make the prefabricated ladder section 2 of equipment have better horizontality, guarantee the stationarity after the stair equipment.

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 "include", "including" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or terminal device including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such process, method, article, or terminal device. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all the modifications of the equivalent structure or equivalent flow path using the contents of the specification and the drawings of the present invention, or directly or indirectly using other related technical fields are also included in the scope of the present invention.

Claims

1. An assembled segmented scissor ladder is characterized by comprising a connecting beam and two prefabricated ladder sections which are arranged in a staggered mode, wherein the connecting beam is located at the staggered position of the two prefabricated ladder sections, each prefabricated ladder section comprises an upper ladder section and a lower ladder section, the low end of each upper ladder section is lapped on the high end of each lower ladder section, the connecting beam is located below the high end of each lower ladder section, a first cement mortar leveling layer is filled between the low end of each upper ladder section and the high end of each lower ladder section and located at the position lower than the middle of one ladder height, a second cement mortar leveling layer is arranged between the connecting beam and the high end of each lower ladder section,

the connecting beam is provided with two groups of pin keys, each group of pin keys corresponds to one prefabricated ladder section, the low end of the upper ladder section and the high end of the lower ladder section are provided with connecting holes corresponding in position, the pin keys penetrate through the second cement mortar leveling layer, the connecting holes of the lower ladder section and the first cement mortar leveling layer from bottom to top and extend to the inside of the connecting holes of the upper ladder section, the connecting holes of the upper ladder section and the lower ladder section are filled with grouting materials, and a mortar layer is plugged above the connecting holes of the upper ladder section.

2. The fabricated, segmented scissor ladder of claim 1, wherein the connecting beams are i-shaped steel beams.

3. The assembled segmented scissors ladder of claim 1, wherein the connecting beam has inclined support platforms fixed to opposite sides thereof, the two inclined support platforms being disposed in a staggered configuration, the two inclined support platforms corresponding to the two prefabricated ladder sections, the inclined support platforms being attached to the lower surface of the lower ladder section.

4. The fabricated segmented scissor ladder of claim 2, wherein the second cement mortar screed extends between the inclined support platform and the lower surface of the lower ladder section.

5. The assembled segmented scissor ladder of claim 1, wherein each set of two of the plurality of pin keys are offset.

6. The assembled segmented scissor ladder of claim 5, wherein a bolt is fixed at the top end of the pin key, and the connecting hole is circular truncated with a large upper part and a small lower part.

7. The assembled segmented scissor ladder of claim 6, wherein an anchor plate is secured to a bottom end of the pin key.

8. The fabricated segmented scissors ladder of claim 1, wherein the second cement mortar screed is provided with a sealer on both sides.

9. The fabricated segmented scissor ladder of claim 1, wherein the first cement mortar leveling layer is provided with a sealing material on one side close to the upper ladder section, and the first cement mortar leveling layer is provided with an elastic material and a blocking material on one side close to the lower ladder section in sequence from inside to outside.

10. The assembled segmented scissor ladder of claim 1, wherein a reserved hole is reserved at both the high end of the upper ladder section and the low end of the lower ladder section.