CN211817521U

CN211817521U - Prefabricated staircase of building engineering

Info

Publication number: CN211817521U
Application number: CN202020192318.5U
Authority: CN
Inventors: 肖志刚
Original assignee: Guangdong Chengmu Construction Engineering Co ltd
Current assignee: Guangdong Chengmu Construction Engineering Co ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-10-30
Anticipated expiration: 2030-02-20

Abstract

The utility model belongs to the technical field of civil engineering's technique and specifically relates to a prefabricated stair of building engineering is related to, its technical scheme main points are: the prefabricated stair board comprises a prefabricated stair board body and mounting plates which are arranged at two ends of the prefabricated stair board body respectively and are arranged horizontally, wherein both the mounting plates are provided with mounting reserved holes, the prefabricated stair board body comprises a support plate which is arranged in an inclined mode and a plurality of steps which are sequentially arranged on the upper surface of the support plate, the bottom surface of each step is arranged in an inclined mode and is attached to the upper surface of the support plate, the top surface of each step is arranged horizontally, a dovetail block and a dovetail groove are respectively arranged on the side walls of every two adjacent steps, the dovetail grooves are arranged horizontally and are matched with the dovetail grooves in a sliding mode, and a fixing assembly used for limiting the steps from being separated from the support plate is arranged between each step and the support plate; the utility model discloses have the effect that can change the damage part step alone.

Description

Prefabricated staircase of building engineering

Technical Field

The utility model belongs to the technical field of civil engineering's technique and specifically relates to a prefabricated stair of building engineering is related to.

Background

The stairs are members for vertical traffic between floors in a building and are used for traffic connection between floors and when the height difference is large. At present, the reinforced concrete stairs are most commonly applied, a construction method of the reinforced concrete stairs comprises the steps of building a template on site, and then pouring concrete into the template, wherein the stair poured in the mode has good rigidity, but needs a long time for waiting for the concrete to be cooled, and has a long construction period. The prefabricated staircase is prefabricated and formed in advance in a factory, is directly installed after arriving at a construction site, does not need to support a template and water for maintenance, saves water resources and maintenance time, and is beneficial to shortening the construction period.

For example, chinese patent with an authorization bulletin number of CN205663121U discloses a prefabricated stair tread, including prefabricated stair tread body, be equipped with on the prefabricated stair tread body and mark time, the external corner department of marking time is equipped with the angle bead of marking time, the upper surface of marking time at angle bead rear of marking time of every layer of marking time is equipped with the antiskid groove of marking time, be equipped with the installation preformed hole at prefabricated stair tread body top and bottom upper surface, be equipped with railing preformed hole at prefabricated stair tread body upper surface one side border, be equipped with the recess at the prefabricated stair tread body lower surface of one side that the installation preformed hole corresponds. Prefabricated stair tread, overall structure is simple, operation convenient to use, stability is good, the reliability is high, uses prefabricated stair tread, strengthened the intensity of stair external corner of marking time, avoided because of colliding with the damage that causes.

The above prior art solutions have the following drawbacks: this prefabricated stair board is the shaping of pouring as an organic whole, when the step of its certain part takes place to damage, needs carry out the whole change, leads to the wasting of resources, so needs improve.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a building engineering prefabricated staircase, this building engineering prefabricated staircase have can change the advantage of damage part step alone.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a prefabricated stair of building engineering, includes prefabricated stair board body and sets up respectively in the mounting panel that is the level setting at prefabricated stair board body both ends, two the mounting panel all is provided with the installation preformed hole, prefabricated stair board body sets up including the backup pad that is the slope and sets gradually in a plurality of steps of backup pad upper surface, the bottom surface of step is the slope setting and laminates mutually with the backup pad upper surface, the top surface of step is the level setting, adjacent two the lateral wall of step is provided with dovetail piece and dovetail respectively, the dovetail is the level setting, dovetail piece and dovetail cooperation of sliding, be provided with the fixed subassembly that is used for restricting the step to break away from the backup pad between step and the backup pad.

By adopting the technical scheme, when the stair is installed, the two installation plates at two ends of the prefabricated stair plate are respectively installed on two floors, then the steps are installed on the support plate, then the steps are fixed on the support plate through the fixing assembly, the dovetail block of the other step is inserted into the fixed step, so that the two steps are spliced together, the other steps are sequentially installed in a butt joint manner on the basis, and finally the stair can be installed; this building engineering prefabricated staircase is formed by backup pad and the equipment of a plurality of step, when the step that needs to be changed the damage, the fixed subassembly of unblock can be pulled down the change alone with the part that damages, and then has improved the utilization ratio of resource.

The present invention may be further configured in a preferred embodiment as: the fixing assembly comprises a screw rod penetrating through the step along the vertical direction and a screw hole formed in the upper surface of the supporting plate, and the screw rod is in threaded fit with the screw hole.

Through adopting above-mentioned technical scheme, operating personnel places the step in backup pad upper surface, and operating personnel places the step in backup pad upper surface, makes screw rod and screw align, then operating personnel screws up the screw rod and fixes the step in the backup pad, and the step makes needing to be changed, unscrews the screw rod, can change the step.

The present invention may be further configured in a preferred embodiment as: the bottom surface of step is provided with the T-slot, the other two relative lateral walls of step are link up along the length direction of step to the T-slot, the upper surface of backup pad is provided with the T-shaped rail that supplies the T-slot to slide the complex along the length direction of step correspondingly.

Through adopting above-mentioned technical scheme, utilize the cooperation of sliding of T-slot and T-shaped rail, make the step more firm with being connected of backup pad.

The present invention may be further configured in a preferred embodiment as: a primary positioning assembly for aligning the screw rod and the screw hole is arranged between the step and the support plate, the primary positioning assembly comprises a positioning groove arranged on the bottom surface of the step, a positioning block connected in the positioning groove in a sliding manner and an inserting hole arranged on the upper surface of the support plate and corresponding to the positioning groove, and the positioning block is in inserting fit with the inserting hole; a spring is connected between the positioning block and the bottom of the positioning groove, and when the insertion hole is aligned with the positioning groove and the spring is in a natural state, the positioning block is inserted in the insertion hole; the one end that the spring was kept away from to the locating piece is provided with the inclined plane, the mutual butt of upper surface and backup pad and relative slip.

Through adopting above-mentioned technical scheme, when operating personnel installed stair, make the T-shaped rail insert the T-slot on the step, then promote the step and slide and install in the backup pad, the locating piece can be impressed into the constant head tank with the inclined plane of backup pad upper surface extrusion locating piece in, when the jack panel was aimed at the constant head tank, the locating piece was under the effect of spring restoring force, inserted in the jack panel, made screw rod and screw aim at.

The present invention may be further configured in a preferred embodiment as: the side face, close to the dovetail block, of the step is provided with a through hole along the length direction of the positioning groove, the through hole is communicated with the positioning groove, a shifting block is fixedly arranged on one side of the positioning block, and the shifting block is connected to the through hole in a sliding mode.

Through adopting above-mentioned technical scheme, when the step damaged, stir the shifting block toward the direction of constant head tank bottom, the shifting block drives the locating piece and contracts into in the constant head tank completely, at this moment, can shift out the step slip backup pad, this simple structure is practical.

The present invention may be further configured in a preferred embodiment as: and anti-skid grains are arranged on the upper surface of the step.

Through adopting above-mentioned technical scheme, the frictional force that antiskid line can increase pedestrian's upper and lower stair makes the pedestrian be difficult for falling stair because of the foot is smooth, this simple structure is practical.

The present invention may be further configured in a preferred embodiment as: and railings are arranged on two sides of the steps.

By adopting the technical scheme, after the stair is installed, the handrail does not need to be installed, the construction period is shortened, and the working efficiency is improved.

The present invention may be further configured in a preferred embodiment as: when a plurality of the steps are installed on the supporting plate, a plurality of the steps are connected through the long rod, the upper end of the rail is provided with an insertion groove, the bottom of the long rod is correspondingly provided with an insertion column which is inserted and matched with the insertion groove, the rail is provided with a screw, the screw penetrates through the side wall of the insertion groove, the side wall of the insertion column is provided with a fixing hole, and the screw is in threaded fit with the fixing hole.

Through adopting above-mentioned technical scheme, stair are in the good back of installation, and a plurality of railings link together through the stock, then pass through the screw fixation with railing and stock and be in the same place, have strengthened the steadiness of railing.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the stair is installed, two installation plates at two ends of a prefabricated stair plate are respectively installed on two floors, then steps are installed on a supporting plate, the steps are fixed on the supporting plate through a fixing assembly, a dovetail block of the other step is inserted into the fixed steps, the two steps are spliced together, the other steps are sequentially installed in a butt joint mode on the basis, and finally the stair can be installed; the prefabricated staircase for the building engineering is formed by assembling the supporting plate and the plurality of steps, when the damaged steps need to be replaced, the damaged parts can be independently detached and replaced by unlocking the fixing assembly, and therefore the utilization rate of resources is improved;

2. an operator places the step on the upper surface of the supporting plate to align the screw rod with the screw hole, then screws the screw rod tightly to fix the step on the supporting plate, and unscrews the screw rod when the step needs to be replaced, so that the step can be replaced;

3. when operating personnel installs stair, make the T-shaped rail insert the T-slot on the step, then promote the step and slide and install in the backup pad, the locating piece can be impressed the locating piece in the constant head tank on the inclined plane of backup pad upper surface extrusion locating piece, when the constant head tank is aimed at to the grafting hole, the locating piece inserts in the grafting hole under the effect of spring restoring force, makes screw rod and screw aim at.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view showing the assembling relationship between the support plate, the step and the long rod according to the embodiment of the present invention;

fig. 3 is a schematic view of the assembly relationship between the primary positioning assembly and the supporting plate in the embodiment of the present invention.

In the figure: 1. prefabricating a stair board body; 11. mounting a plate; 111. mounting a preformed hole; 12. a support plate; 13. a screw hole; 14. a T-shaped rail; 15. inserting holes; 2. a step; 21. a dovetail block; 22. a dovetail groove; 23. a screw; 24. a T-shaped slot; 25. positioning a groove; 251. positioning blocks; 26. a spring; 27. perforating; 28. shifting blocks; 29. a countersunk hole; 19. anti-skid lines; 3. a railing; 31. inserting grooves; 32. a screw; 4. a long rod; 41. inserting the column; 42. and (7) fixing holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a prefabricated stair of building engineering, including prefabricated stair board body 1 and respectively integrative the pouring in the mounting panel 11 that is the level setting at prefabricated stair board body 1 both ends, mounting panel 11 is the setting of rectangular plate, and two mounting panels 11 have all been seted up installation preformed hole 111, prefabricated stair board body 1 is including the rectangular form backup pad 12 that is the slope setting and installing in a plurality of steps 2 of backup pad 12 upper surface, the bottom surface of step 2 is the slope setting and laminates mutually with backup pad 12 upper surface, the top surface of step 2 is the level setting.

Referring to fig. 1 and 2, the opposite side walls of two adjacent steps 2 are respectively and horizontally provided with a dovetail block 21 and a dovetail groove 22 along the width direction of the support plate 12, the dovetail groove 22 penetrates through the other two opposite side walls of the steps 2 along the width direction of the support plate 12, and the dovetail block 21 is in sliding fit with the dovetail groove 22; the bottom surface of step 2 has seted up T-slot 24, and other two relative lateral walls of step 2 are run through along the width direction of backup pad 12 to T-slot 24, and the upper surface of backup pad 12 is fixed with the T rail 14 that supplies T-slot 24 to slide the complex along its width direction correspondence, utilizes the cooperation of sliding of T-slot 24 and T rail 14, makes the connection of step 2 and backup pad 12 more firm. In order to shorten construction period, the both sides of a plurality of steps 2 all are fixed with railing 3, a plurality of steps 2 are when installing in backup pad 12, railing 3 of a plurality of steps 2 passes through stock 4 and connects, inserting groove 31 has been seted up to 3 upper ends of railing, the bottom of stock 4 corresponds the welding and has pegged graft the peg graft post 41 that cooperates in inserting groove 31, railing 3 installs the screw 32 that the screw thread runs through inserting groove 31 lateral wall, fixing hole 42 has been seted up to peg graft post 41 lateral wall, screw 32 and fixing hole 42 screw-thread fit, stair are after the installation is accomplished, a plurality of railings 3 link together through stock 4, then pass through screw 32 with railing 3 and stock 4 and fix together, railing 3's steadiness has been strengthened. The fixed surface of step 2 installs anti-skidding line 19, and in this embodiment, anti-skidding line 19 is four sand grips that set up along the width direction of backup pad 12, and anti-skidding line 19 can increase the frictional force that the pedestrian went up and down the stair, makes the pedestrian be difficult for falling the stair because of the foot is smooth.

Referring to fig. 2 and 3, a fixing assembly for limiting the step 2 from being separated from the support plate 12 is provided between the step 2 and the support plate 12. Specifically, the fixing component comprises a screw 23 which penetrates through the step 2 along the vertical direction and a screw hole 13 which is arranged on the upper surface of the supporting plate 12, and the screw 23 is in threaded fit with the screw hole 13; meanwhile, the head of the screw 23 is arranged in a hexagon socket, the top surface of the step is provided with a counter bore 29, the screw 23 is in threaded fit with the counter bore 29, and the head of the screw 23 sinks into the counter bore 29, so that the screw 23 does not protrude out of the top surface of the step 2. Meanwhile, a primary positioning assembly for aligning the screw 23 and the screw hole 13 is provided between the step 2 and the support plate 12. Specifically, the primary positioning assembly comprises a rectangular positioning groove 25 arranged on the bottom surface of the step 2, a positioning block 251 connected in the positioning groove 25 in a sliding manner, and an inserting hole 15 arranged on the upper surface of the support plate 12 and corresponding to the positioning groove 25, wherein the positioning block 251 is in inserting fit with the inserting hole 15; a spring 26 is fixedly connected between the positioning block 251 and the bottom of the positioning groove 25, and when the insertion hole 15 is aligned with the positioning groove 25 and the spring 26 is in a natural state, the positioning block 251 is inserted in the insertion hole 15; one end of the positioning block 251, which is far away from the spring 26, is provided with an inclined surface, and the inclined surface is mutually abutted and relatively slid with the upper surface of the supporting plate 12. When an operator installs the stair, the T-shaped rail 14 is inserted into the T-shaped groove 24 on the step 2, then the step 2 is pushed to be installed on the support plate 12 in a sliding manner, the positioning block 251 can be pressed into the positioning groove 25 by pressing the inclined surface of the positioning block 251 on the upper surface of the support plate 12, and when the inserting hole 15 is aligned to the positioning groove 25, the positioning block 251 is inserted into the inserting hole 15 under the restoring force of the spring 26, so that the screw 23 is aligned to the screw hole 13.

Referring to fig. 2 and 3, a through hole 27 is formed in the side face, adjacent to the dovetail block 21, of the step 2 along the length direction of the positioning groove 25, the through hole 27 is communicated with the positioning groove 25, a shifting block 28 is welded to one side of the positioning block 251, the shifting block 28 is connected to the through hole 27 in a sliding mode, the shifting block 28 is shifted towards the bottom of the positioning groove 25, the shifting block 28 drives the positioning block 251 to be completely retracted into the positioning groove 25, and at the moment, the damaged step 2 can be independently shifted out of the support plate 12.

The implementation principle of the embodiment is as follows: firstly, respectively installing two installation plates 11 at two ends of a prefabricated stair board on two floors, then installing a step 2 on a support plate 12, then fixing the step 2 on the support plate 12 through a screw 23 in threaded connection with a screw hole 13, inserting a dovetail block 21 of another step 2 on the fixed step 2, splicing the two steps 2 together, sequentially installing other steps 2 in a butt joint manner on the basis, and finally completing the installation of the stair; this building engineering prefabricated staircase is formed by a plurality of parts equipment, when needs change, unscrews screw rod 23 and can pull down the change alone with the part that damages, and then has improved the utilization ratio of resource.

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

1. The utility model provides a prefabricated staircase of building engineering, includes prefabricated stair board body (1) and sets up respectively in mounting panel (11) that are the level setting at prefabricated stair board body (1) both ends, two mounting panel (11) all are provided with installation preformed hole (111), its characterized in that: prefabricated stair board body (1) sets up including backup pad (12) that is the slope and sets gradually in a plurality of steps (2) of backup pad (12) upper surface, the bottom surface of step (2) is the slope and sets up and laminate mutually with backup pad (12) upper surface, the top surface of step (2) is the level setting, adjacent two the lateral wall of step (2) is provided with dovetail block (21) and dovetail (22) respectively, dovetail (22) are the level setting, dovetail block (21) and dovetail (22) cooperation of sliding, be provided with the fixed subassembly that is used for restricting step (2) to break away from backup pad (12) between step (2) and backup pad (12).

2. A construction engineering prefabricated staircase according to claim 1, characterized in that: the fixing assembly comprises a screw rod (23) penetrating through the step (2) along a vertical direction thread and a screw hole (13) formed in the upper surface of the supporting plate (12), and the screw rod (23) is in thread fit with the screw hole (13).

3. A construction engineering prefabricated staircase according to claim 1, characterized in that: the bottom surface of step (2) is provided with T-slot (24), the remaining two relative lateral walls of step (2) are link up along the length direction of step (2) in T-slot (24), the upper surface of backup pad (12) is provided with the T-shaped rail (14) that supplies T-slot (24) to slide the complex along the length direction correspondence of step (2).

4. A construction engineering prefabricated staircase according to claim 1, characterized in that: a primary positioning assembly used for aligning the screw rod (23) and the screw hole (13) is arranged between the step (2) and the support plate (12), the primary positioning assembly comprises a positioning groove (25) arranged at the bottom surface of the step (2), a positioning block (251) connected in the positioning groove (25) in a sliding manner and an inserting hole (15) arranged on the upper surface of the support plate (12) and corresponding to the positioning groove (25), and the positioning block (251) is in inserting fit with the inserting hole (15); a spring (26) is connected between the positioning block (251) and the bottom of the positioning groove (25), and when the insertion hole (15) is aligned with the positioning groove (25), the spring (26) is in a natural state, the positioning block (251) is inserted into the insertion hole (15); one end, far away from the spring (26), of the positioning block (251) is provided with an inclined surface, and the inclined surface is mutually abutted to the upper surface of the supporting plate (12) and slides relatively.

5. A constructional engineering prefabricated staircase according to claim 4, wherein: the side face, close to the dovetail block (21), of the step (2) is provided with a through hole (27) along the length direction of the positioning groove (25), the through hole (27) is communicated with the positioning groove (25), one side of the positioning block (251) is fixedly provided with a shifting block (28), and the shifting block (28) is connected to the through hole (27) in a sliding mode.

6. A construction engineering prefabricated staircase according to claim 1, characterized in that: the upper surface of the step (2) is provided with anti-skid grains (19).

7. A construction engineering prefabricated staircase according to claim 1, characterized in that: a plurality of railings (3) are arranged on two sides of the steps (2).

8. A constructional engineering prefabricated staircase according to claim 7, wherein: when a plurality of step (2) are installed in supporting plate (12), a plurality of railing (3) of step (2) are connected through stock (4), railing (3) upper end is provided with inserting groove (31), the bottom of stock (4) corresponds and is provided with grafting post (41) of pegging graft cooperation in inserting groove (31), railing (3) are provided with screw (32) that the screw thread runs through inserting groove (31) lateral wall, grafting post (41) lateral wall is provided with fixed orifices (42), screw (32) and fixed orifices (42) screw-thread fit.