CN219045254U

CN219045254U - Light prefabricated staircase

Info

Publication number: CN219045254U
Application number: CN202222572201.1U
Authority: CN
Inventors: 沈泽机; 陈森; 陈华; 何林海; 边大林; 骆文刚
Original assignee: Hangzhou Tongda Group Co ltd
Current assignee: Hangzhou Tongda Group Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-05-19
Anticipated expiration: 2032-09-28

Abstract

The utility model relates to the technical field of assembled buildings, in particular to a light prefabricated staircase, which comprises a staircase body, a first protection structure, a second protection structure and an embedded part, wherein the first protection structure and the second protection structure are arranged above the staircase body, the embedded part is used for connecting the protection structure, and the protection structure is detachably connected with the embedded part. When the embedded part is used, the first vertical rod is clamped on the embedded part, the connecting element is downwards buckled on the first rod body, and finally, two ends of the supporting rod are respectively inserted into the second preformed holes. Because be equipped with on marking time the built-in fitting, make first protective structure or second protective structure is convenient to install and is dismantled, installs in the construction, dismantles after the construction is accomplished, the built-in fitting can be regarded as the base of installation permanent railing, can avoid the secondary to punch and solid rubbish discharges and construction work volume when the installation of permanent railing base simultaneously, avoids punching and clearance rubbish, the simple operation.

Description

Light prefabricated staircase

Technical Field

The utility model relates to the technical field of assembled buildings, in particular to a light prefabricated staircase.

Background

Along with the rapid development of building industrialization, the use of assembled building gradually increases, prefabricated stairways are generated, and the common prefabricated stairways only have stair plates and are not provided with protective devices.

The publication number CN215802773U provides a light precast concrete assembled stair, which comprises a stair body and four support plates respectively arranged on the highest step and the lowest step of the stair body, wherein the upper surfaces of the highest step and the lowest step of the stair body are respectively provided with four first slots, the first slots are internally provided with first bolts, and the front side surface and the rear side surface of the stair body are respectively provided with four second slots; through setting up guardrail, bolt one and bolt two, the both sides of utilizing the effect of guardrail intercept the stair body, improve construction operation personnel's factor of safety, but need seal the fixed slot after the guardrail is demolishd, punch from the both ends of marking time again when needing to install new railing in the later stage fitment, will destroy the concrete of having pour like this, can produce solid rubbish moreover and need clear up.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides the light prefabricated staircase which is integrally of a beam structure, reduces the dead weight of the structure, can be provided with temporary guardrails to ensure the safety of construction operators, and is provided with the embedded components and the detachable connecting structure, so that the guardrail can be repeatedly used in the later stage of installation, is free from punching and cleaning garbage, is convenient to operate, saves the construction workload and reduces the construction garbage.

A lightweight prefabricated staircase, comprising:

the stair body comprises a step, wherein a first boundary beam and a second boundary beam are fixedly connected below the step, a first platform is arranged at the top end of the step, and a second platform is arranged at the bottom end of the step;

the first protection structure comprises first vertical rods, support rods are detachably connected between the two first vertical rods, and connecting elements are arranged between the support rods and the support rods;

and the embedded part is used for connecting the first vertical rod with the steps, and the first vertical rod is detachably connected with the embedded part.

Further, the embedded part comprises a first plate body, the lower surface of the first plate body is fixedly connected with anchor bars, the upper surface of the first plate body is fixedly connected with a first circular tube, and two spring bulges are oppositely arranged on the side wall of the first circular tube.

Further, the position of the first upright rod, which is close to the bottom, is provided with two first preformed holes matched with the spring protrusions, and the diameter of the first round tube is smaller than that of the first rod body.

Further, two second preformed holes are formed in the side wall of the connecting element in a way of opposite to each other, the second preformed holes are matched with the supporting rods, the bottom of the connecting element is inwards concave to form a circular groove, and the top of the first vertical rod is inserted into the groove.

Further, the step comprises a plurality of L-shaped reinforced concrete units which are combined in an array mode, and the anchor bars are anchored in the step.

Further, a pin key reserved hole is formed in the first platform or the second platform.

The light-duty prefabricated staircase in this embodiment, when prefabricating, at first ligature boundary beam the step, first platform and the reinforcing bar of second platform, will the anchor bar ligature in on the pedal panel reinforcing bar of step, then will set up the template and carry out concrete placement, after reaching design intensity will first pole setting joint in on the built-in fitting, connecting element down lock joint in the first body of rod will at last will peg graft respectively in the second preformed hole in the both ends of bracing piece. The permanent railing is installed before delivery acceptance, at this moment gradually with the bracing piece first pole setting is demolishd and is accomodate can, first pole setting bracing piece with connecting element repeatedly usable is in the next construction engineering, built-in fitting department can be directly used for installing the permanent railing, for whole pleasing to the eye can with the protruding department of spring sets up the foot lid and shelters from.

Compared with the prior art, the utility model has the beneficial effects that:

(1) because the light-duty prefabricated staircase in this embodiment sets up first boundary beam the second boundary beam with step, first boundary beam with the second boundary beam is overall structure's atress position, step by a plurality of L shaped steel reinforced concrete component and constitute, has alleviateed the structure dead weight, has alleviateed the load of hoist and mount and transportation.

(2) Due to the arrangement of the first protection structure or the second protection structure, temporary protection is carried out during construction, the operation safety of constructors can be effectively protected, the safety coefficient is improved, and the falling risk of the stairway is reduced.

(3) Because be equipped with on marking time the built-in fitting, make first protective structure or second protective structure is convenient to install and is dismantled, installs in the construction, dismantles after the construction is accomplished, the built-in fitting can be regarded as the base of installation permanent railing, can avoid the secondary to punch and solid rubbish discharges and construction work volume when the installation of permanent railing base simultaneously, avoids punching and clearance rubbish, the simple operation.

(4) The first vertical rod is connected with the connecting element and the supporting rod is connected with the connecting element in an inserting mode, so that the component can be recovered after construction is completed, and the component can be used as a temporary protection structure of a stair in the next project and can be repeatedly used.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

fig. 1 is a schematic view 1 of the overall structure of the lightweight prefabricated staircase in this embodiment.

Fig. 2 is an enlarged view at a in fig. 1.

Fig. 3 is a schematic view 2 of the overall structure of the lightweight prefabricated staircase in this embodiment.

Fig. 4 is an exploded view of the embedment, the first leg and the connecting element of the lightweight prefabricated staircase of this embodiment.

Fig. 5 is an enlarged view of the connecting member of the lightweight prefabricated staircase in this embodiment.

In the figure: 1-stair body, 101-first boundary beam, 102-second boundary beam, 103-step, 104-first platform, 105-first key preformed hole, 106-second platform, 107-second key preformed hole, 2-first protection structure, 201-first upright pole, 2011-first preformed hole, 202-bracing piece, 203-connecting element, 2031-second preformed hole, 2032-groove, 3-second protection structure, 4-embedded part, 401-first plate body, 402-anchor bar, 403-first circular tube, 404-spring protrusion.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific examples:

a light prefabricated staircase is shown in fig. 1, and comprises a staircase body 1, wherein a first protection structure 2 and a second protection structure 3 are respectively arranged on two sides of the staircase body 1, and the bottom of the first protection structure 2 or the bottom of the second protection structure 3 are detachably connected with an embedded part 4.

Specifically, the inside of stair body 1 all sets up the reinforcing bar, and the outside is wrapped up the shaping by concrete, and as shown in fig. 3, the both sides of stair body 1 bottom set up first boundary beam 101 and second boundary beam 102 respectively, and first boundary beam 101 and second boundary beam 102 are the holistic atress position of structure, and between first boundary beam 101 and the second boundary beam 102 and its upper portion

fixed connection

103, 103 is stepped by a plurality of L shaped steel reinforced concrete units and forms, and 103's dead weight is little, lightens hoist and mount weight. The stress of the stepping 103, which transmits dynamic load and static load to the first side beam 101 and the second side beam 102 on the two sides, reduces the stress range of the stepping 103. The top of stair body 1 sets up first platform 104, and the top of step 103 is connected to the one end fixed connection of first platform 104. The first platform 104 is provided with two first key preformed holes 105. The bottom of stair body 1 sets up second platform 106, and the one end fixed connection of second platform 106 is stepped 103's bottom, and second platform 106 sets up two second key preformed holes 107. The first pin key reserved holes 105 and the second pin key reserved holes 107 are used for tightly combining with the on-site embedded components, the reserved positions of the first pin key reserved holes and the second pin key reserved holes are matched with the embedded components, and then the high-strength cement is used for plugging.

As shown in fig. 1 and 2, the first protection structure 2 is detachably connected to the left side of the stair body 1, and includes a first upright 201, a support bar 202 disposed between the two first uprights, and a connecting element 203. The first vertical rods 201 are hollow galvanized steel pipes, the first vertical rods 201 are detachably connected to the horizontal pedal of the step 103 through embedded parts 4, the support rods 202 are detachably connected between the two first vertical rods 201, and two symmetrical first reserved holes 2011 are formed in the side walls of the bottom ends of the first vertical rods 201, and refer to fig. 4. The top end of the first upright 201 is detachably connected with a connecting element 203, and the connecting element 203 is cylindrical and is used for connecting the first upright 201 with the supporting rod 202. The side walls of the connecting element 203 are provided with two second reserved holes 2031 in opposite directions, and the second reserved holes 2031 are provided with a size matched with the diameter of the support rod 202, so that the support rod 202 can be inserted into the second reserved holes 2031 for fixing; the bottom of the connecting element 203 is recessed upward to form a recess 2032, and referring to fig. 5, the top of the first upright 201 is inserted into the recess 2032. The second protection structure 3 is detachably connected to the right side of the stair body 1, the component composition of the second protection structure is consistent with that of the first protection structure 2, and the arrangement of the first protection structure 2 and the second protection structure 3 can effectively prevent constructors from falling from two sides in the middle of going up and down the stair, so that the safety of the stair is improved; the detachable connection structure of the first protection structure 2 and the second protection structure 3 enables the operation to be more convenient in the process of mounting and dismounting, and the detachable connection structure can be reused and has high utilization rate.

The bottom of the first protection structure 2 or the second protection structure 3 is detachably connected with the embedded part 4. The arrangement of the embedded part 4 can not damage the formed concrete structure when the permanent railing is installed at the later stage, and simultaneously, the workload and solid garbage generated by punching can be reduced. As shown in fig. 4, the embedded part 4 comprises a first plate body 401, and four anchor bars 402 are uniformly arranged on the lower surface of the first plate body 401, and the anchor bars 402 are fixedly connected with the steel bars inside the steps 103, so that the embedded part 4 is anchored more stably; the bottom of the anchor bar 402 is provided with a bending part to enhance the anchoring force. The upper surface of the first plate body 401 is fixedly connected with a first circular tube 403, the diameter of the first circular tube 403 is smaller than that of the first vertical rod 201, two side walls of the first circular tube 403 are symmetrically connected with spring protrusions 404, and the spring protrusions 404 are matched with the first reserved holes 2011. When the first rod 201 is connected with the embedded part 4 downwards, the spring protrusion 404 is pressed to enable the first upright rod 201 to be in downward contact with the upper surface of the first plate 401, and the spring protrusion 404 just pops out from the first preformed hole 2011, so that the first upright rod 201 is clamped on the embedded part 4. For the installation and the dismantlement of first pole setting 204, only need press the spring protrusion 404 to accomplish the installation after aiming at first pipe 403 with first pole setting 204 to the lower part, press the spring protrusion 404 earlier then upwards promote first pole setting 204 and accomplish the dismantlement during the dismantlement, convenient operation, labour saving and time saving.

In the light prefabricated stairway in this embodiment, during prefabrication, firstly binding the edge beam, the step 103, the first platform 104 and the reinforcing steel bars of the second platform 106, binding the anchor bar 402 on the reinforcing steel bars of the step 103, then carrying out concrete pouring on the erecting formwork, after reaching the design strength, clamping the first upright rod 201 on the embedded part 4, downwards fastening the connecting element 203 on the first rod body 201, and finally respectively splicing the two ends of the supporting rod 202 in the second preformed holes 2031. Before the permanent railing is installed, the support rods 202 and the first vertical rods 201 are gradually detached and stored, the first vertical rods 201, the support rods 202 and the connecting elements 203 can be reused in the next construction project, the embedded parts 4 can be directly used for installing the permanent railing, and the foot covers can be arranged at the positions of the spring protrusions 404 for shielding the whole attractive appearance.

Because the light prefabricated staircase in this embodiment sets up first boundary beam 101, second boundary beam 102 and mark time 103, first boundary beam 101 and second boundary beam 102 are overall structure's atress position, mark time 103 by a plurality of L shaped steel reinforced concrete component constitution, alleviateed the structure dead weight, alleviateed hoist and mount and transportation's load. Due to the arrangement of the first protective structure 2 or the second protective structure 3, temporary protection is carried out during construction, the operation safety of constructors can be effectively protected, the safety coefficient is improved, and the falling risk of the stairway is reduced. Because 103 both sides of marking time are equipped with built-in fitting 4 for first protective structure 2 or second protective structure 3 easy to assemble dismantles, installs in the construction, dismantles after the construction is accomplished, and built-in fitting 4 can be regarded as the base of installation permanent railing, can avoid the secondary to punch and solid rubbish discharges and construction work load when permanent railing base installation simultaneously, can not destroy the concrete of pouring, is exempted from to punch and clear up rubbish, the simple operation. The first upright 201 and the connecting element 203 and the support rod 202 and the connecting element are connected in an inserting mode, so that the parts can be recovered after construction is completed, and the part can be used as a temporary protection structure of stairs in the next project and can be repeatedly used for a plurality of times.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A lightweight prefabricated staircase, characterized in that it comprises:

the stair body (1), the stair body (1) comprises a step (103), a first side beam (101) and a second side beam (102) are fixedly connected below the step (103), a first platform (104) is arranged at the top end of the step (103), and a second platform (106) is arranged at the bottom end of the step (103);

the first protection structure (2) and the second protection structure (3) are arranged above the steps (103), the first protection structure (2) comprises first vertical rods (201), a supporting rod (202) is detachably connected between the two first vertical rods (201), and a connecting element (203) is arranged between the supporting rod (202) and the supporting rod (202);

and the embedded part (4) is used for connecting the first vertical rod (201) with the stepping (103), and the first vertical rod (201) is detachably connected with the embedded part (4).

2. The lightweight prefabricated staircase of claim 1, wherein:

the embedded part (4) comprises a first plate body (401), wherein anchor bars (402) are fixedly connected to the lower surface of the first plate body (401), a first circular tube (403) is fixedly connected to the upper surface of the first plate body (401), and two spring protrusions (404) are oppositely arranged on the side wall of the first circular tube (403).

3. The lightweight prefabricated staircase of claim 2, wherein:

two first preformed holes (2011) matched with the spring protrusions (404) are formed in the position, close to the bottom, of the first vertical rod (201), and the diameter of the first circular tube (403) is smaller than that of the first vertical rod.

4. A lightweight prefabricated staircase according to claim 3, characterized in that:

the side wall of the connecting element (203) is provided with two second preformed holes (2031) in opposite directions, the second preformed holes (2031) are matched with the supporting rods (202), the bottom of the connecting element (203) is inwards concave to form a circular groove (2032), and the top of the first vertical rod (201) is inserted into the groove (2032).

5. The lightweight prefabricated staircase of claim 4, wherein:

the tread (103) comprises a plurality of L-shaped reinforced concrete units which are combined in an array mode, and the anchor bars (402) are anchored in the tread (103).

6. The lightweight prefabricated staircase of claim 5, wherein:

and pin key reserved holes are arranged on the first platform (104) or the second platform (106).