CN206174337U - Light -duty beam type stair of double pin formula - Google Patents

Abstract

The utility model discloses a light -duty beam type stair of double pin formula. To be left and right stair units of being set up two symmetries be formed by connecting with lock mode spelling side by side these beam type stair, left side stair unit includes the fold line shape section of marking time I, upper surface that the section of marking time at the left side of the section of marking time I terminal surface, was used to the shutoff as the benchmark make progress simultaneously, the girder I of downward two -way extension to and the shutoff is at the right side of the section of marking time I terminal surface, use the secondary beam I of the upper surface of the section of marking time as benchmark downwardly extending, right side stair unit includes the fold line shape section of marking time II, upper surface that the section of marking time at the right side of the section of marking time II terminal surface, was used to the shutoff as the benchmark make progress simultaneously, the girder II of downward two -way extension to and the shutoff is at the left side of the section of marking time II terminal surface, use the secondary beam II of the upper surface of the section of marking time as benchmark downwardly extending, the utility model is suitable for an artifical transport is assembled with the scene of being convenient for, greatly reduced the load and the degree of difficulty during artifical transport, be fit for the stair as civilian low -rise building or assembly type structure.

Description

A kind of light-duty stringer type stairway of double combined

Technical field

This utility model be related to it is a kind of suitable for civilian low-rise building or the stair of assembled architecture, in particular to one Plant the light-duty stringer type stairway of double combined.

Background technology

Precast rc slab formula stair (referring to Fig. 8) is due to marking time as black triangle xoncrete structure, heavier, Beyond the Lifting Capacity of a great deal of job site crane gear, not readily transportable and on-site hoisting, conduct is not particularly suitable for The stair of the assembled architectures such as civilian low-rise building.Because the stair of the assembled architectures such as civilian low-rise building are in handling, installation When mostly there is no supporting Large-scale Hoisting equipment, be essentially all completing, so building by simple and mechanical and a dead lift The weight of ladder must be controlled in artificial transportable scope.

The content of the invention

The purpose of this utility model is exactly directed to the weak point existing for above-mentioned prior art and provides one kind and meet people The light-duty stringer type stairway of double combined of on-site consolidation is carried and be easy to work.

The purpose of this utility model can be realized by following technique measures：

The light-duty stringer type stairway of double combined of the present utility model is to detain side by side by two symmetrically arranged left and right stairway units The monoblock type stringer type stairway that conjunction mode spelling is formed by connecting；The left stairway unit includes that polyline shaped is marked time section I, and closure is being marked time The left end face of section I and on the basis of the upper surface of section of marking time simultaneously upwards, the girder I of two-way extension downwards, and block In its right end face the secondary beam I that extended downwardly on the basis of the upper surface of section of marking time of section I of marking time；The right stairway unit bag Include polyline shaped to mark time section II, block its right end face in section II of marking time and on the basis of the upper surface of section of marking time at the same upwards, to Under two-way extension girder II, and closure section II of marking time left end face and on the basis of the upper surface of section of marking time to The secondary beam II of lower extension；Offer in the bottom symmetrical of the secondary beam I and secondary beam II some to for left and right stairway unit spelling When fit the bolt hole of adapted, and be embedded with for installing the card of connecting bolt respectively at the non-laminating end of the bolt hole Block（Only with connecting bolt is passed through from the hole of the bolt hole and fixture block of II bottom of I bottom of secondary beam and secondary beam, and will be even Connecting bolt termination and nut are fixed in the draw-in groove of fixture block, thus accurately and quickly can be connected as left and right stairway unit Integrally, form monoblock type stringer type stairway）.

The lower surface on the upper and lower surface and secondary beam I and secondary beam II of girder I described in this utility model and girder II is homogeneous It is mutually parallel, each parallel to the line of broken line flex points of marking time at different levels.

Principle of the present utility model is as follows：

As the section of marking time of stringer type stairway is that continuous polyline shaped is marked time section, have very big than the form of marking time in cranked slab stairs Change（Cranked slab stairs is marked time as black triangle xoncrete structure, referring to Fig. 8）, weight naturally also significantly drops therewith It is low；Meanwhile, the mark time left and right sides end of section of stringer type stairway is provided with girder I and girder II（Referring to Fig. 4）, due to I He of girder The effective depth (i.e. H) of girder II is the base plate thickness of cranked slab stairs（That is H '）More than two times, according to rigidity and height The setting of cubic relationship, girder I and girder II substantially increases the rigidity of stringer type stairway section.Therefore, the beam type in installation Stair are more flexible than cranked slab stairs, are more suitable for the stair of the assembled architectures such as civilian low-rise building, that is, are adapted for mount on In the building matched without Large-scale Hoisting equipment.

This utility model is then by stringer type stairway is resolved into two symmetrical left and right stairway units and to detain side by side The mentality of designing that conjunction mode spelling is connected as one, by the carrying weight of stringer type stairway（That is the left stairway unit of monolithic or right stair The weight of unit）Further be optimized to can be with a dead lift in the range of, greatly reduce the load and difficulty of a dead lift；This Outward, as left and right stairway unit is symmetrical structure, and bolt hole is offered in I bottom of secondary beam and II bottom symmetrical of secondary beam, point Several are not embedded with for installing the fixture block of connecting bolt, during spelling only with by connecting bolt from I bottom of secondary beam and secondary beam II Bottom is provided with the hole at fixture block position and passes through, and connecting bolt termination and nut is fixed in the draw-in groove of fixture block, Thus accurately and quickly left and right stairway unit can be connected as one, form monoblock type stringer type stairway.In sum, this reality With it is new be it is a kind of suitable for a dead lift and the light-duty stringer type stairway of double combined for being easy to on-site consolidation, suitably as civilian low layer Building or assembled architecture stair.

The beneficial effects of the utility model are as follows：

This utility model be it is a kind of suitable for a dead lift and the light-duty stringer type stairway of double combined for being easy to on-site consolidation, significantly Load and difficulty when reducing a dead lift, is suitable as the stair of civilian low-rise building or assembled architecture.

Description of the drawings

Fig. 1 is dimensional structure diagram of the present utility model.

Fig. 2 is front view of the present utility model.

Fig. 3 is the top view of Fig. 2.

Fig. 4 is the C-C profiles in Fig. 3.

Fig. 5 is the partial enlarged drawing in Fig. 4 at D.

Fig. 6 is the A-A profiles in Fig. 3.

Fig. 7 is the B-B sectional views in Fig. 3.

Fig. 8 is the structural representation of Conventional plate-type stair.

Sequence number in figure：1st, left stairway unit, 1-1, section of marking time I, 1-2, girder I, 1-3, secondary beam I, 2, right stairway unit, 2- 1st, section of marking time II, 2-2, girder II, 2-3, secondary beam II, 3, fixture block, 4, connecting bolt, 5, bolt hole, H, girder I and girder II Effective depth, H ', the base plate thickness of cranked slab stairs.

Specific embodiment

This utility model is below with reference to embodiment（Accompanying drawing）It is further described：

As shown in Fig. 1~Fig. 7, the light-duty stringer type stairway of double combined of the present utility model is symmetrically arranged left and right by two Stairway unit 1,2 is with manner spelling is formed by connecting side by side monoblock type stringer type stairway（Referring to Fig. 3, Fig. 4）；The left stair Unit 1 includes that polyline shaped is marked time I 1-1 of section（Referring to Fig. 7）, block I 1-1 of section that marks time left end face and with the upper of section of marking time On the basis of surface simultaneously upwards, I 1-2 of girder of two-way extension downwards（Referring to Fig. 2, Fig. 3, Fig. 4）, and closure is in section of marking time Its right end face of I 1-1 I 1-3 of secondary beam extended downwardly on the basis of the upper surface of section of marking time（Referring to Fig. 2, Fig. 3, Fig. 4, figure 5th, Fig. 6）；The right stairway unit 2 includes that polyline shaped is marked time II 2-1 of section（Referring to Fig. 7）, block on the right side for marking time II 2-1 of section End face and on the basis of the upper surface of section of marking time and meanwhile upwards, II 2-2 of girder of two-way extension downwards（Referring to Fig. 2, Fig. 3, Fig. 4）, and block the left end face in II 2-1 of section that marks time the secondary beam II extended downwardly on the basis of the upper surface of section of marking time 2-3（Referring to Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6）；It is some right to offer in the bottom symmetrical of II 2-3 of I 1-3 of the secondary beam and secondary beam It is for the bolt hole 5 of adapted of fitting during left and right stairway unit spelling and embedding in the non-laminating end difference of the bolt hole 5 Equipped with for installing the fixture block 3 of connecting bolt 4（Referring to Fig. 4, Fig. 5, only with by connecting bolt 4 from I 1-3 bottoms of secondary beam and secondary beam Pass through in the hole of the bolt hole 5 and fixture block 3 of II 2-3 bottoms, and 4 termination of connecting bolt and nut be fixed on into fixture block In 3 draw-in groove, thus accurately and quickly left and right stairway unit 1,2 can be connected as one, form monoblock type beam type building Ladder）.

II 2-3 of upper and lower surface and I 1-3 of secondary beam and secondary beam of II 2-2 of the 1-2 of girder I described in this utility model and girder Lower surface it is mutually parallel, each parallel to the line of broken line flex points of marking time at different levels（Referring to Fig. 2, Fig. 6, Fig. 7）.

Specifically used situation of the present utility model is as follows：

This utility model is very simple when in use, only needs first to be carried to left stairway unit 1 and right stairway unit 2 respectively Corresponding installation site is simultaneously overlapped on steering platform；Then the position of the left stairway unit 1 of local directed complete set and right stairway unit 2, Both are made to be in full symmetric position；It is last only with by connecting bolt 4 from the spiral shell of II 2-3 bottoms of I 1-3 bottoms of secondary beam and secondary beam Pass through in the hole of bolt throughhole 5 and fixture block 3, and 4 termination of connecting bolt and nut be fixed in the draw-in groove of fixture block 3, this Left and right stairway unit 1,2 accurately and quickly can be connected as one by sample, form monoblock type stringer type stairway.

Claims (2)

1. the light-duty stringer type stairway of a kind of double combined, it is characterised in that：It is by two symmetrically arranged left and right stairway units（1、 2）With the monoblock type stringer type stairway that manner spelling is formed by connecting side by side；The left stairway unit（1）Mark time including polyline shaped Section I（1-1）, block in section I of marking time（1-1）Left end face and on the basis of the upper surface of section of marking time at the same upwards, it is double downwards To the girder I for extending（1-2）, and closure is in section I of marking time（1-1）Its right end face and on the basis of the upper surface of section of marking time The secondary beam I for extending downwardly（1-3）；The right stairway unit（2）Mark time section II including polyline shaped（2-1）, block in section II of marking time （2-1）Its right end face and on the basis of the upper surface of section of marking time at the same upwards, the girder II of two-way extension downwards（2-2）, with And closure is in section II of marking time（2-1）Left end face and the secondary beam II that extended downwardly on the basis of the upper surface of section of marking time（2- 3）；In the secondary beam I（1-3）With secondary beam II（2-3）Bottom symmetrical offer it is some to for left and right stairway unit spelling when The bolt hole of laminating adapted（5）, and in the bolt hole（5）Non- laminating end be embedded with for installing connecting bolt respectively （4）Fixture block（3）.

2. the light-duty stringer type stairway of double combined according to claim 1, it is characterised in that：The girder I（1-2）With girder II （2-2）Upper and lower surface and secondary beam I（1-3）With secondary beam II（2-3）Lower surface it is mutually parallel, step on each parallel at different levels The line of step broken line flex point.