CN211736106U - Sliding type prefabricated assembly type stair connecting device - Google Patents
Sliding type prefabricated assembly type stair connecting device Download PDFInfo
- Publication number
- CN211736106U CN211736106U CN201922303268.3U CN201922303268U CN211736106U CN 211736106 U CN211736106 U CN 211736106U CN 201922303268 U CN201922303268 U CN 201922303268U CN 211736106 U CN211736106 U CN 211736106U
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- Prior art keywords
- prefabricated staircase
- prefabricated
- sliding
- ear
- staircase
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- -1 polytetrafluoroethylene Polymers 0.000 claims description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 11
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 11
- 239000002344 surface layer Substances 0.000 claims description 2
- 210000005069 ears Anatomy 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 9
- 230000006978 adaptation Effects 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012791 sliding layer Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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- Steps, Ramps, And Handrails (AREA)
Abstract
The utility model relates to a prefabricated assembled stair connecting device of slidingtype, it includes prefabricated stair, undersetting and upper bracket, and the upper and lower both ends of prefabricated stair are equipped with assembly platform, and the upper bracket is provided with the inboard of undersetting and chooses the ear, is provided with positive four pyramid's arch on assembly platform's the diapire, choose on the roof of ear set up with protruding looks adaptation positive four pyramid's recess, prefabricated stair pass through assembly platform and install on corresponding choosing the ear. When the earthquake takes place, the arch of prefabricated staircase's assembly platform diapire is sent out the slip in the recess of choosing the ear roof, release earthquake stress, after the earthquake, under prefabricated staircase's dead weight effect, the recess is gone into to protruding landing once more, makes prefabricated staircase reply to mounted position, keeps prefabricated staircase and each position clearance of building body to satisfy normal installation requirement, the utility model discloses have the effect that improves prefabricated staircase stability and security.
Description
Technical Field
The utility model belongs to the technical field of the technique of assembly type structure and specifically relates to a prefabricated assembled stair connecting device of slidingtype is related to.
Background
The prefabricated assembled stairway is characterized in that concrete is used for pouring out the needed stairway in a prefabricating factory, and then the stairway is transported to an installation site for installation.
Chinese patent with publication number CN208251491U discloses a prefabricated assembled stairway with sliding supports of raising plates, which comprises a prefabricated assembled stairway section, a lower supporting sliding support and an upper connecting fixed support, wherein the lower part of the prefabricated assembled stairway section is supported by the lower supporting sliding support, the lower part of the prefabricated assembled stairway section can slide on the lower supporting sliding support, and the upper part of the prefabricated assembled stairway section is fixedly connected with the upper connecting fixed support. The designed stair section has a larger sliding space range in an earthquake, and earthquake stress is effectively released.
The above prior art solutions have the following drawbacks: after an earthquake, the stair sections are difficult to return to the initial installation position, so that large gaps are easy to exist between the stair sections and the wall contact surfaces of the buildings, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a prefabricated assembled stair connecting device of slidingtype.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a prefabricated assembled stair connecting device of slidingtype, includes prefabricated stair, undersetting and upper bracket, the upper and lower both ends of prefabricated stair are equipped with the mounting platform who is used for supporting the installation, the upper bracket with the inboard of undersetting is provided with chooses the ear, be provided with the arch of positive four pyramids on mounting platform's the diapire, protruding diapire parallel arrangement at mounting platform has a plurality of, choose to set up the recess of positive four pyramids with protruding looks adaptation on the roof of ear, prefabricated stair pass through mounting platform and install on corresponding choosing the ear, when prefabricated stair is installed on choosing the ear, prefabricated stair's lower tip and upper end part do not leave the slip gap with undersetting and upper bracket, mounting platform's diapire and the roof of choosing the ear leave the clearance.
Through adopting above-mentioned technical scheme, operating personnel when hoisting prefabricated staircase through hoisting accessory and installing, make the arch of the assembly platform diapire at prefabricated staircase upper and lower both ends align the recess of the ear roof on upper bracket and the undersetting, put down prefabricated staircase again, make protruding cooperation installation go into the recess, when the earthquake takes place, the arch is sent out the slip in the recess, release earthquake stress, after the earthquake, under the dead weight effect of prefabricated staircase, the arch landing is gone into the recess once more, make prefabricated staircase reply to the mounted position, keep prefabricated staircase and each position clearance of building body to satisfy normal installation requirement, improve prefabricated staircase stability and security.
The present invention may be further configured in a preferred embodiment as: and a polytetrafluoroethylene plate is arranged on the outer surface layer of the protrusion.
Through adopting above-mentioned technical scheme, at bellied extexine fixed mounting polytetrafluoroethylene board, reduce assembly platform and choose the frictional force of ear go up sliding process, make the arch more smooth when sliding in the recess, be favorable to releasing earthquake stress.
The present invention may be further configured in a preferred embodiment as: the tip of prefabricated stair is provided with the sunshade that is used for sheltering from the slip gap.
Through adopting above-mentioned technical scheme, shelter from the remaining slip gap between prefabricated staircase and upper bracket, the undersetting through the sunshade, it is not smooth that prefabricated staircase slides when effectively avoiding filling into the slip gap and leading to the fact the earthquake after impurity, prefabricated staircase release earthquake stress's effect when improving the earthquake.
The present invention may be further configured in a preferred embodiment as: the prefabricated staircase's tip has seted up the mounting groove along self width direction respectively, the sunshade activity is pegged graft in the mounting groove, the slot has been seted up along vertical direction on the roof of upper bracket with the undersetting, the diapire of sunshade is provided with the inserted bar that slides and wear to locate in the slot.
Through adopting above-mentioned technical scheme, when installation prefabricated staircase, insert earlier the sunshade and locate in the mounting groove, and slide the sunshade to making the inserted bar align the slot on upper bracket or the undersetting, install prefabricated staircase again on choosing the ear, make the inserted bar insert in the slot, when the earthquake takes place, prefabricated staircase is sliding on choosing the ear, the horizontal migration of sunshade is in the mounting groove simultaneously, the inserted bar slides from top to bottom in the spout is vertical, make the sunshade remain throughout and cover prefabricated staircase and upper bracket, the remaining slip gap state between the undersetting, effectively avoid sliding gap intussuseption to fill in and cause prefabricated staircase slip not smooth when the earthquake after the impurity, prefabricated staircase release earthquake stress's effect when further improving the earthquake.
The present invention may be further configured in a preferred embodiment as: the curtain board is provided with through holes corresponding to the mounting grooves, the top end of the insert rod is provided with vertical threaded holes, and the insert rod is fixedly connected with the curtain board through countersunk bolts in a threaded mode.
Through adopting above-mentioned technical scheme, operating personnel can dismantle the setting through passing through countersunk head bolt with inserted bar and sunshade, when the damage appears in the sunshade use, operating personnel can be used to untie countersunk head bolt, makes the sunshade can directly take off from the mounting groove and change, improves the maintenance convenience of sunshade.
The present invention may be further configured in a preferred embodiment as: the top wall of the cantilever lug is fixedly provided with a cylindrical convex block, the bottom wall of the assembly platform is provided with a cylindrical positioning groove, the diameter of the positioning groove is not more than the length of the protruding edge, the diameter of the convex block is less than that of the positioning groove, and when the protrusion and the groove are assembled, the convex block coaxially penetrates through the positioning groove.
Through adopting above-mentioned technical scheme, taking place at the earthquake, prefabricated stair when choosing ear to slide, choose the lug on the ear to remove in the constant head tank on assembly platform, provide the restriction to prefabricated stair's maximum sliding distance, effectively avoid on the assembly platform of prefabricated stair during the protruding dislocation slides goes into another recess, improve prefabricated stair's assembly stability.
The present invention may be further configured in a preferred embodiment as: the outer wall of the lug is sleeved with a polytetrafluoroethylene sleeve.
Through adopting above-mentioned technical scheme, when choosing the lug boss and slide to the lateral wall contact with the constant head tank, the polytetrafluoroethylene cover enables the lug boss and slides more smoothly, is favorable to releasing earthquake stress.
The present invention may be further configured in a preferred embodiment as: the two sides of the top wall of the cantilever lug are respectively and fixedly provided with a guide block, the upper edge of the inner side wall of the guide block is an inclined surface, and when the protrusion is assembled with the groove, a sliding allowance with the length not larger than one half of the length of the protrusion side is reserved between the side wall of the prefabricated staircase and the guide block.
Through adopting above-mentioned technical scheme, operating personnel is when the prefabricated stair of installation, through guide block and its upper inclined plane setting, makes prefabricated stair when the assembly, and the guide block plays the guide effect to it, improves prefabricated stair assembly efficiency.
To sum up, the utility model discloses a following at least one useful technological effect:
1. when an earthquake occurs, the bulge of the bottom wall of the assembly platform of the prefabricated staircase slides in the groove of the top wall of the cantilever lug to release earthquake stress, and after the earthquake is finished, the bulge slides into the groove again under the action of the dead weight of the prefabricated staircase to restore the prefabricated staircase to the installation position, so that the gap between the prefabricated staircase and each part of the building body is kept to meet the normal installation requirement, and the stability and the safety of the prefabricated staircase are improved;
2. the remaining sliding gaps between the prefabricated staircase and the upper support and between the prefabricated staircase and the lower support are shielded by the shielding plates, so that the problem that the prefabricated staircase cannot slide smoothly during an earthquake after impurities are filled in the sliding gaps is effectively avoided, and the effect of releasing earthquake stress of the prefabricated staircase during the earthquake is improved;
3. when the earthquake happens, the prefabricated staircase slides on the ear, the lug on the ear is picked to move in the positioning groove on the assembly platform, the maximum sliding distance of the prefabricated staircase is limited, the situation that the bulge on the assembly platform of the prefabricated staircase slides into another groove in a staggered mode is effectively avoided, and the assembly stability of the prefabricated staircase is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the local explosion structure of the present invention.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic view of a local explosion structure at another view angle of the present invention.
In the figure, 1, a staircase is prefabricated; 11. assembling a platform; 12. a protrusion; 13. a polytetrafluoroethylene sheet; 2. a lower support; 3. an upper support; 4. ear picking; 41. a groove; 5. a shutter; 51. mounting grooves; 52. a slot; 53. inserting a rod; 54. perforating; 55. a countersunk bolt; 6. a bump; 61. positioning a groove; 62. a polytetrafluoroethylene sleeve; 7. and a guide block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 4, for the utility model discloses a prefabricated assembled stair connecting device of slidingtype, including prefabricated stair 1, undersetting 2 and upper bracket 3, upper bracket 3 and undersetting 2 are located the upper and lower floor corner layer in stair installation room respectively. The prefabricated staircase 1 is formed by pouring concrete once, and the two ends of the prefabricated staircase 1 are respectively integrally formed with an assembly platform 11. In this embodiment, the bottom wall of the mounting platform 11 is integrally formed with a plurality of protrusions 12 in the shape of an inverted regular quadrangular pyramid, and the plurality of protrusions 12 are arranged on the bottom wall of the mounting platform 11 in parallel. The peripheral wall of the protrusion 12 is provided with a sliding layer made of a polytetrafluoroethylene plate 13, and the sliding layer is fixedly connected with the assembly platform 11. With reference to fig. 3, one side of the upper support 3 and the lower support 2 near the middle part of the building installation room is the inner side, and the inner side walls of the upper support and the lower support are integrally formed with the ear-picking 4 for receiving and installing the assembling platforms 11 at the two ends of the prefabricated staircase 1. The top wall of the ear-picking 4 is provided with a regular quadrangular pyramid-shaped groove 41 corresponding to the protrusion 12 in shape. The position of the projection 12 and the groove 41 can be interchanged. When the protrusion 12 is aligned and installed in the groove 41, sliding gaps are reserved between the two ends of the prefabricated staircase 1 and the upper support 3 and the lower support 2, and a gap is reserved between the bottom wall of the assembling platform 11 and the top wall of the lifting lug 4.
Referring to fig. 4, two sides of the top wall of the cantilever lug 4 are respectively and integrally formed with guide blocks 7, and the two guide blocks 7 are symmetrically arranged along the vertical middle plane of the prefabricated staircase 1. The upper edge of the wall surface of the guide block 7 close to the vertical middle surface of the prefabricated staircase 1 is an inclined surface, and a sliding layer made of polytetrafluoroethylene is fixed on the inclined surface. When the prefabricated staircase 1 and the ear of choosing 4 are correctly installed, the assembly platform 11 of the prefabricated staircase 1 is positioned between the two guide blocks 7 on the ear of choosing 4, a sliding allowance is left between the side wall of the prefabricated staircase 1 and the guide blocks 7, and the length of the sliding allowance is not more than one half of the side length of the bulge 12 on the bottom wall of the assembly platform 11.
Referring to fig. 2 and 3, the top wall of the ear pick 4 is further integrally formed with a projection 6, and the projection 6 is a cylinder. Reinforcing steel bars are embedded in the convex blocks 6 for reinforcement, in the embodiment, two convex blocks 6 are arranged on the picking lugs 4 and are respectively positioned at two ends of the groove 41 group on the picking lugs 4. With reference to fig. 4, a positioning groove 61 adapted to the position of the protrusion 6 is formed in the bottom wall of the assembling platform 11, the diameter of the positioning groove 61 is not greater than the length of the protrusion 12, and the diameter of the protrusion 6 is smaller than the diameter of the positioning groove 61. When the prefabricated staircase 1 is correctly installed, the projection 6 is coaxially arranged in the positioning groove 61. The outer sleeve of lug 6 still is equipped with polytetrafluoroethylene cover 62 for reduce the lug 6 along the frictional force when constant head tank 61 circumference slides, prevent that lug 6 from wearing and tearing.
Referring to fig. 2 and 3, the end portions of the two ends of the prefabricated staircase 1 are respectively provided with a shielding plate 5 for shielding a sliding gap between the prefabricated staircase 1 and the upper support 3 or the lower support 2, and in this embodiment, the shielding plate 5 is detachably disposed. On the vertical lateral wall at 1 both ends of prefabricated staircase, seted up bar mounting groove 51 along self width direction respectively, under the correct installation status of prefabricated staircase 1, the lower limb distance of mounting groove 51 is chosen the linear distance of ear 4 roof and is greater than the linear distance of upper bracket 3 or 2 roof of lower bracket apart from it choose ear 4 roof. The shielding plate 5 is movably inserted into the mounting groove 51, the top walls of the upper support 3 and the lower support 2 are provided with slots 52 along the vertical direction, and the shielding plate 5 is provided with through holes 54 corresponding to the mounting groove 51. An inserting rod 53 penetrates through the slot 52 in a sliding mode, a threaded hole is formed in the top end of the inserting rod 53 along the axial direction of the inserting rod, and a bolt is penetrated through a through hole 54 in the shielding plate 5 and is a countersunk bolt 55. The countersunk head bolt 55 is screwed into the threaded hole of the insert rod 53, and the head of the countersunk head bolt 55 abuts against the shield plate 5.
The implementation principle of the embodiment is as follows: when an operator lifts the prefabricated staircase 1 by the lifting device for installation, the protrusions 12 on the bottom wall of the assembly platforms 11 at the upper end and the lower end of the prefabricated staircase 1 are aligned with the grooves 41 on the top walls of the upper lifting lugs 4 of the upper support 3 and the lower support 2, and then the prefabricated staircase 1 is put down, so that the protrusions 12 are installed in the grooves 41 in a matched mode. When an earthquake occurs, the protrusion 12 slides in the groove 41, and earthquake stress is released. Meanwhile, due to the design of the regular rectangular pyramid, the protrusion 12 has a large contact area with the groove 41 in the sliding process, so that the protrusion 12 is not easy to wear. After the earthquake, under the action of the self-weight of the prefabricated staircase 1, the protrusion 12 slides into the groove 41 again, so that the prefabricated staircase 1 returns to the installation position. Keep prefabricated stair 1 and each position clearance of building body to satisfy normal installation requirement, improve prefabricated stair 1 stability and security.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a prefabricated assembled stair connecting device of slidingtype, includes prefabricated stair (1), undersetting (2) and upper bracket (3), its characterized in that: the upper end part and the lower end part of the prefabricated staircase (1) are provided with assembling platforms (11) for supporting and installing, the inner sides of the upper support (3) and the lower support (2) are provided with a picking ear (4), the bottom wall of the assembling platform (11) is provided with a regular quadrangular pyramid-shaped bulge (12), a plurality of the bulges (12) are arranged on the bottom wall of the assembling platform (11) in parallel, the top wall of the ear-picking (4) is provided with a regular quadrangular pyramid-shaped groove (41) matched with the bulge (12), the prefabricated staircase (1) is arranged on the corresponding ear picking ears (4) through an assembly platform (11), when the prefabricated staircase (1) is arranged on the ear-picking lug (4), the lower end part and the upper end part of the prefabricated staircase (1) respectively leave sliding gaps with the lower support (2) and the upper support (3), a gap is reserved between the bottom wall of the assembling platform (11) and the top wall of the cantilever lug (4); the two sides of the top wall of the cantilever lug (4) are respectively and fixedly provided with a guide block (7), the upper edge of the inner side wall of the guide block (7) is an inclined surface, and when the protrusion (12) and the groove (41) are assembled, a sliding allowance with the length not larger than one-half of the side length of the protrusion (12) is reserved between the side wall of the prefabricated staircase (1) and the guide block (7).
2. A sliding prefabricated staircase connection device according to claim 1, characterised in that: and a polytetrafluoroethylene plate (13) is arranged on the outer surface layer of the bulge (12).
3. A sliding prefabricated staircase connection device according to claim 1, characterised in that: the end part of the prefabricated staircase (1) is provided with a shielding plate (5) used for shielding a sliding gap.
4. A sliding prefabricated staircase connection device according to claim 3, characterised in that: the prefabricated staircase (1) is characterized in that the end part of the prefabricated staircase is respectively provided with a mounting groove (51) along the width direction of the prefabricated staircase, the shielding plate (5) is movably inserted into the mounting groove (51), the top wall of the upper support (3) and the top wall of the lower support (2) are provided with slots (52) along the vertical direction, and the bottom wall of the shielding plate (5) is provided with an insertion rod (53) which is penetrated through the slots (52) in a sliding manner.
5. A sliding prefabricated staircase connection device according to claim 4, characterised in that: the curtain plate is characterized in that a through hole (54) corresponding to the mounting groove (51) is formed in the curtain plate (5), a vertical threaded hole is formed in the top end of the inserting rod (53), and the inserting rod (53) is fixedly connected with the curtain plate (5) through a countersunk head bolt (55) in a threaded mode.
6. A sliding prefabricated staircase connection device according to claim 1, characterised in that: the top wall of the cantilever lug (4) is fixedly provided with a cylindrical convex block (6), the bottom wall of the assembly platform (11) is provided with a cylindrical positioning groove (61), the diameter of the positioning groove (61) is not more than the side length of the bulge (12), the diameter of the convex block (6) is less than the diameter of the positioning groove (61), and when the bulge (12) and the groove (41) are assembled, the convex block (6) coaxially penetrates through the positioning groove (61).
7. A sliding prefabricated staircase connection device according to claim 6, characterised in that: the outer wall of the lug (6) is sleeved with a polytetrafluoroethylene sleeve (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303268.3U CN211736106U (en) | 2019-12-19 | 2019-12-19 | Sliding type prefabricated assembly type stair connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303268.3U CN211736106U (en) | 2019-12-19 | 2019-12-19 | Sliding type prefabricated assembly type stair connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211736106U true CN211736106U (en) | 2020-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922303268.3U Expired - Fee Related CN211736106U (en) | 2019-12-19 | 2019-12-19 | Sliding type prefabricated assembly type stair connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211736106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962884A (en) * | 2021-02-07 | 2021-06-15 | 浙江富成建设集团有限公司 | Fabricated stair structure and construction method thereof |
| CN113235843A (en) * | 2021-03-31 | 2021-08-10 | 盐城工学院 | Alternate formula assembled stair |
-
2019
- 2019-12-19 CN CN201922303268.3U patent/CN211736106U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962884A (en) * | 2021-02-07 | 2021-06-15 | 浙江富成建设集团有限公司 | Fabricated stair structure and construction method thereof |
| CN113235843A (en) * | 2021-03-31 | 2021-08-10 | 盐城工学院 | Alternate formula assembled stair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201023 |