Public building fabricated staircase

Abstract

The utility model discloses a public building assembly type stair, and relates to the field of public buildings, the public building assembly type stair comprises a stair body, the stair body comprises a slope section, a stair top end and a stair bottom end, a second connecting piece is fixed in the end, close to the slope section, of the top of the stair bottom end, and a first connecting piece is fixed to the end, close to the slope section, of the top of the stair top end in a penetrating mode. According to the device, when the stair body and the embedded part of the concrete beam are connected through the arranged inclined protruding blocks, the contact area is increased, so that the embedded part of the concrete beam can better enter the preformed hole, meanwhile, after the whole stair body completely falls on the concrete beam, the protruding blocks are squeezed by gravity, move inwards and enter the preformed hole together, and therefore the stair body is prevented from being damaged. And after the whole stair body falls on the concrete beam, a hammer is used for beating the sealing cover, so that the extrusion rod and the inclined block enter the clamping groove, the sleeve can be clamped in the preformed hole more tightly, and the effect that the preformed hole of the stair and the concrete beam can be rapidly aligned and installed is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of public buildings, in particular to a public building assembly type stair. BACKGROUND

[0002] At present, the structural safety performance of public buildings is higher than that of general civil buildings, and the use environment of public buildings is also more than that of civil buildings. The construction of public buildings needs to occupy public transportation resources. Therefore, the design of public building structure should be mature and reliable technology first, and then speed and efficiency.

[0003] However, the existing assembly type stair is usually hoisted by using a steel wire rope when being installed. The steel wire rope is usually directly bound on the stair, and the bottom of the stair is inclined, which is easy to cause the deviation of the steel wire rope and damage the bottom of the stair. In addition, the assembly type stair is connected by the reserved hole of the stair and the embedded part on the concrete beam during installation. The size of the reserved hole is usually matched with the embedded part, which makes it difficult to align during installation. CONTENT OF THE INVENTION

[0004] In order to solve the problem that the reserved hole of the stair is connected with the embedded part on the concrete beam, and the size of the reserved hole is usually matched with the embedded part, which makes it difficult to align during installation, the present application provides a public building assembly type stair.

[0005] The public building assembly type stair provided by the present application adopts the following technical scheme: a stair body is provided, the stair body includes a slope section, a top end and a bottom end, a second connecting piece is fixed inside the top end of the bottom end near one end of the slope section, a first connecting piece is fixed through the top end of the top end near one end of the slope section, a connecting plate is threadedly connected to the bottom of the first connecting piece, a reserved hole is provided through the top end and the top end of the bottom end, a sleeve is fixedly connected to the inner wall of the bottom of the reserved hole, a protruding block is fixed to the bottom of the sleeve, an extrusion rod is movably sleeved on the top of the reserved hole, a sealing cover is fixed to the top of the extrusion rod, inclined blocks are fixed to the top of the extrusion rod, and a clamping groove is formed in the top of the sleeve.

[0006] By using the above technical scheme, the extrusion rod and the inclined block enter the clamping groove by knocking the sealing cover with a hammer during installation, so that the sleeve can be more tightly clamped in the reserved hole.

[0007] Preferably, the protruding block is provided with a plurality of protruding blocks, the plurality of protruding blocks are arranged in a circumferentially equidistant manner, and the plurality of protruding blocks are arranged in a hollow circular truncated cone shape.

[0008] Through the technical scheme, the inclined protrusion is arranged to increase the contact area when the stair body is connected with the embedded part of the concrete beam, so that the embedded part of the concrete beam can enter the reserved hole better, and after the stair body is completely placed on the concrete beam, the protrusion is pressed by gravity and moves inward to enter the reserved hole.

[0009] Preferably, the clamping groove and the extrusion rod are matched, the extrusion rod is provided with a placing groove in the middle, and the vertical section of the inclined block is a right triangle.

[0010] Through the technical scheme, after the stair body is completely placed on the concrete beam, the sealing cover is knocked with a hammer, so that the extrusion rod and the inclined block enter the clamping groove, and the sleeve can be more tightly clamped in the reserved hole, and the placing groove is provided to leave enough space for the embedded part of the concrete beam.

[0011] Preferably, the first connecting piece is attached to the bottom of the slope section, and the connecting plate is attached to the bottom of the slope section.

[0012] Through the technical scheme, the first connecting piece is connected to the stair body more tightly through the connecting plate, and the connecting plate is attached to avoid the first connecting piece from leaking out too much and affecting the aesthetic appearance.

[0013] Preferably, the first connecting piece is provided with two, the second connecting piece is provided with two, the two first connecting pieces are respectively located at both ends of the top of the stair, and the two second connecting pieces are respectively located at both ends of the bottom of the stair.

[0014] Through the technical scheme, the stair body is lifted by using the first connecting piece and the second connecting piece, and the hook lock can be directly connected during lifting.

[0015] Preferably, the top of the slope section is provided with a groove, the groove is provided with a plurality of groups, the plurality of groups of grooves are arranged in a stepped manner on the top of the slope section, and each group of grooves is provided with two.

[0016] Through the technical scheme, the groove can facilitate the subsequent installation of the anti-skid module on the top of the slope section, so that the anti-skid module is more tightly connected with the slope section.

[0017] In summary, the present application has the following at least beneficial technical effects:

[0018] 1. The application sets up the inclined protrusion when connecting the stair body with the embedded part of the concrete beam, increases the contact area, so that the embedded part of the concrete beam can better enter the reserved hole, and after the whole stair body falls on the concrete beam, the protrusion is extruded by gravity and moves inward together into the reserved hole, after the whole stair body falls on the concrete beam, the sealing cover is knocked with a hammer, so that the extrusion rod and the inclined block enter the clamping groove, so that the sleeve can be more tightly clamped in the reserved hole, so as to achieve the effect that the reserved hole of the stair and the beam of the concrete can be quickly aligned and installed;

[0019] 2. The application uses the first connecting piece and the second connecting piece to lift the stair body, which can be connected directly by using the hook lock when lifting, and the first connecting piece is connected with the stair body more tightly through the connecting plate, so that the connecting piece and the stair body are prevented from separating during lifting, so as to achieve the effect that the lifting is more convenient and the damage to the stair is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The whole structure schematic diagram of the public building assembly stair of the embodiment of the application;

[0021] Figure 2 The bottom view schematic diagram of the whole structure of the embodiment of the application;

[0022] Figure 3 The schematic diagram of the structure at the first connecting piece of the embodiment of the application;

[0023] Figure 4 The schematic diagram of the structure at the sleeve of the embodiment of the application;

[0024] Reference signs: 1, stair body; 101, slope section; 102, top end of ladder; 103, bottom end of ladder; 2, groove; 3, second connecting piece; 4, first connecting piece; 5, connecting plate; 6, reserved hole; 7, sleeve; 8, protrusion; 9, clamping groove; 10, extrusion rod; 11, sealing cover; 12, placing groove; 13, inclined block. DETAILED DESCRIPTION

[0025] The following will be described in detail in combination with the drawings Figures 1-4 The application will be further described in detail.

[0026] The embodiment of the application discloses a public building fabricated staircase, which comprises a staircase body 1, the staircase body 1 comprises a slope section 101, a top end 102 and a bottom end 103, the second connecting piece 3 is fixed inside the top end of the bottom end 103 close to one end of the slope section 101, the first connecting piece 4 is fixed through the top end of the top end 102 close to one end of the slope section 101, the connecting plate 5 is screw-connected to the bottom of the first connecting piece 4, the staircase body 1 is lifted by using the first connecting piece 4 and the second connecting piece 3, the hook lock is directly used for connection during lifting, the steel wire rope does not affect the staircase body 1, and the deviation caused by directly binding the steel wire rope is avoided, the reserved holes 6 are arranged through the top ends of the top end 102 and the bottom end 103, the sleeve 7 is fixedly connected to the inner wall of the bottom of the reserved hole 6, the protruding block 8 is fixed to the bottom of the sleeve 7, the extrusion rod 10 is movably sleeved on the top of the reserved hole 6, the sealing cover 11 is fixed to the top of the extrusion rod 10, the inclined blocks 13 are fixed to the top of the extrusion rod 10, the clamping grooves 9 are arranged on the top of the sleeve 7, the sealing cover 11 is knocked by using a hammer during installation, the extrusion rod 10 and the inclined blocks 13 enter the clamping grooves 9, and the sleeve 7 can be more tightly clamped in the reserved hole 6.

[0027] Reference is made to the accompanying drawings Figure 2 and 4 Wherein the plurality of protruding blocks 8 are circumferentially equidistantly arranged, and the plurality of protruding blocks 8 are hollow circular truncated cone-shaped, the inclined protruding blocks 8 increase the contact area when the staircase body 1 is connected with the embedded part of the concrete beam, so that the embedded part of the concrete beam can enter the reserved hole 6 better, and after the whole staircase body 1 falls on the concrete beam, the protruding blocks 8 are pressed by gravity and move inward to enter the reserved hole 6.

[0028] Reference is made to the accompanying drawings Figure 4 Wherein the clamping grooves 9 and the extrusion rod 10 are used in pairs, the placing grooves 12 are arranged in the middle of the extrusion rod 10, the vertical section of the inclined block 13 is a right triangle, after the whole staircase body 1 falls on the concrete beam, the sealing cover 11 is knocked by using a hammer, so that the extrusion rod 10 and the inclined blocks 13 enter the clamping grooves 9, so that the sleeve 7 can be more tightly clamped in the reserved hole 6, and the placing grooves 12 are arranged to provide enough space for the embedded part of the concrete beam.

[0029] Reference is made to the accompanying drawings Figure 1 and 3 Wherein the bottom of the first connecting piece 4 is attached to the bottom of the slope section 101, and the connecting plate 5 is attached to the bottom of the slope section 101, so that the first connecting piece 4 is more tightly connected with the staircase body 1, and the connecting plate 5 is attached to avoid the first connecting piece 4 from leaking out too much and affecting the appearance.

[0030] Reference is made to the accompanying drawings Figure 1Wherein the first connecting piece 4 is provided with two, the second connecting piece 3 is provided with two, two first connecting pieces 4 are located at the two ends of the ladder top end 102 respectively, two second connecting pieces 3 are located at the two ends of the ladder bottom end 103 respectively, the staircase body 1 is lifted by using the first connecting piece 4 and the second connecting piece 3, and the hook lock is directly used for connection during lifting.

[0031] Reference drawings Figure 1 Wherein the groove 2 is provided on the top of the slope section 101, the groove 2 is provided with multiple groups, the multiple groups of grooves 2 are arranged on the top of the slope section 101 in a stepped manner, each group of grooves 2 is provided with two, and the groove 2 is arranged to facilitate the subsequent installation of the anti-skid module on the top of the slope section 101, so that the anti-skid module is more closely connected with the slope section 101.

[0032] The implementation principle of the public building fabricated staircase of the embodiment is as follows: first, the staircase body 1 is lifted by using the first connecting piece 4 and the second connecting piece 3, and the hook lock is directly used for connection during lifting, the first connecting piece 4 is connected with the staircase body 1 through the connecting plate 5, so that the connection between the first connecting piece 4 and the staircase body 1 is more closely connected, and the situation that the connecting piece is separated from the staircase body 1 during lifting is prevented, then the staircase body 1 is lifted to the embedded part of the concrete beam, when the staircase body 1 is connected with the embedded part of the concrete beam, the inclined protrusion 8 is arranged to increase the contact area, so that the embedded part of the concrete beam can better enter the reserved hole 6, and after the whole staircase body 1 falls on the concrete beam, the protrusion 8 is pressed by gravity and moves inward into the reserved hole 6, after the whole staircase body 1 falls on the concrete beam, the sealing cover 11 is struck by a hammer, so that the extrusion rod 10 and the inclined block 13 enter the clamping groove 9, so that the sleeve 7 can be more closely clamped in the reserved hole 6, and the placed groove 12 is arranged to provide sufficient space for the embedded part of the concrete beam.

[0033] The above are preferred embodiments of the present application, and are not limited to the protection scope of the present application, therefore: equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A prefabricated stair for public buildings, comprising a stair body (1) comprising a ramp section (101), a top end (102) and a bottom end (103), characterized in that: The second connecting piece (3) is internally fixed at one end of the top of the ladder bottom end (103) near the slope section (101), the first connecting piece (4) is fixed at one end of the top of the ladder top end (102) near the slope section (101), the bottom of the first connecting piece (4) is threadedly connected with the connecting plate (5), the top of the ladder top end (102) and the top of the ladder bottom end (103) are both provided with the reserved hole (6), the inner wall of the reserved hole (6) is fixedly connected with the sleeve (7), the bottom of the sleeve (7) is fixedly connected with the protruding block (8), the top of the reserved hole (6) is movably sleeved with the extrusion rod (10), the top of the extrusion rod (10) is fixedly connected with the sealing cover (11), the top of the extrusion rod (10) is fixedly connected with the inclined block (13), and the top of the sleeve (7) is provided with the clamping groove (9).

2. The public building fabricated stair of claim 1, wherein: The protruding block (8) is provided with a plurality of circumferentially equidistantly arranged hollow truncated cone-shaped protruding blocks (8).

3. The public building fabricated stair of claim 2, wherein: The clamping groove (9) and the extrusion rod (10) are used in pairs, the middle of the extrusion rod (10) is provided with the placing groove (12), and the vertical section of the inclined block (13) is a right triangle.

4. The public building fabricated stair of claim 1, wherein: The bottom of the first connecting piece (4) is attached to the bottom of the slope section (101), and the connecting plate (5) is attached to the bottom of the slope section (101).

5. The public building fabricated stair of claim 1, wherein: The first connecting piece (4) is provided with two second connecting pieces (3), and the two first connecting pieces (4) are respectively located at two ends of the ladder top end (102).

6. The public building fabricated stair of claim 1, wherein: The top of the slope section (101) is provided with the groove (2), the groove (2) is provided with a plurality of groups, and the groove (2) is provided with two groups on the top of the slope section (101) in a stepped manner.

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