Novel fixing tool for pre-embedded screw of prefabricated stair

Abstract

The utility model provides a novel pre-embedded screw fixing tool for a prefabricated stair, which belongs to the field of stair building construction and comprises two first galvanized steel pipes, two fixers and a thick steel plate, the two fixers are fixedly connected to the circumferential surfaces of the two first galvanized steel pipes respectively, and the thick steel plate is fixedly connected to the circumferential surfaces of the two first galvanized steel pipes. The number of the first galvanized steel pipes is two, the number of the thick steel plates is two, the two thick steel plates are fixedly connected to the lower ends of the two first galvanized steel pipes correspondingly, and the second galvanized steel pipes are fixedly connected to one side ends of the two fixers correspondingly. The construction quality of the device is improved, meanwhile, the fabricated staircase is further standardized, and efficient work and assembly of the device are perfected.

Description

Technical Field

[0001] The utility model belongs to the field of staircase construction, and in particular relates to a novel prefabricated staircase embedded screw fixing tool. Background Art

[0002] In the prior art, in prefabricated buildings, the integrally cast reinforced concrete staircase is divided into a rest platform section and a staircase section. Usually, the rest platform section is cast in place, and the staircase section is prefabricated. There are two holes at the connection end of the prefabricated staircase section. During the construction of the rest platform, two pre-embedded bolts with anchor heads are pre-embedded. After the concrete reaches the strength, the hoisting begins. The prefabricated staircase section is hoisted by a tower crane, and the connection holes on the prefabricated staircase section are aligned with the pre-embedded screws on the rest platform and fixed by filling cement mortar.

[0003] The authorization publication number "CN217949577U" records "a prefabricated staircase embedded bolt reinforcement device". The present application relates to a prefabricated staircase embedded bolt reinforcement device, which relates to the field of staircase construction, and includes a bracket, a movable support plate and a nut. The bracket includes a fixed splint and a fixed rod. The fixed rod is vertically fixedly connected to the fixed splint. One end of the movable support plate is vertically fixed to the fixed rod, and the fixed splint and the fixed splint are both located on the same side of the fixed rod. The fixed rod is perpendicular to the horizontal plane where the movable support plate is located. The nut is fixedly arranged on the movable support plate, and a limiting hole for the embedded bolt to pass through is opened at the corresponding position on the movable support plate. The embedded bolts of the present application pass through the limiting holes on the movable support plate and are threadedly connected to the nuts, so that they can be placed in a vertical posture, thereby making the placement position and placement posture of the embedded bolts more accurate and having better stability.

[0004] The above patent can solve the problem of vertical placement, thereby making the placement position and placement posture of the embedded bolts more accurate and having better stability. However, the above patent has certain defects when used. The traditional prefabricated staircase embedded bolt reinforcement device fails to strengthen the construction quality of the embedded bolts and improve the construction quality of the device. At the same time, the device further standardizes the prefabricated stairs and improves the efficient operation and assembly of the device. Utility Model Content

[0005] The purpose of the utility model is to provide a novel prefabricated staircase embedded screw fixing tool, aiming to solve the problem that the traditional prefabricated staircase embedded bolt reinforcement device in the prior art fails to strengthen the construction quality of the embedded bolts and improve the construction quality of the device. At the same time, the device further standardizes the assembled stairs and improves the efficient operation and assembly of the device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A new type of prefabricated staircase embedded screw fixing tool includes:

[0008] two first galvanized steel pipes;

[0009] A fixer, wherein two of the fixers are provided, and the two fixers are respectively fixedly connected to the circumferential surfaces of the two first galvanized steel pipes;

[0010] Thick steel plates, two of which are provided, and the two thick steel plates are respectively fixedly connected to the lower ends of the two first galvanized steel pipes;

[0011] The second galvanized steel pipe is fixedly connected to one side end of the two fixers.

[0012] As a preferred solution of the utility model, two screw rods are rotatably connected in the two first galvanized steel pipes respectively, and the length of the screw rods is 3m.

[0013] As a preferred solution of the utility model, the lower ends of the two screw rods are respectively fixedly connected with two L-shaped screw rods, and the length of the L-shaped screw rods is 35 cm.

[0014] As a preferred solution of the utility model, the circumferential surfaces of the two screw rods are rotatably connected to two hexagonal nuts respectively, and the material of the hexagonal nuts is stainless steel.

[0015] As a preferred solution of the utility model, the length dimension of the thick steel plate is 20 cm, the width dimension of the thick steel plate is 20 cm, and the height dimension of the thick steel plate is 5 mm.

[0016] As a preferred solution of the present invention, the material of the fixator is stainless steel, and the length of the fixator is 6 cm.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In this solution, the fixing device is easy to install. At the same time, the fixing device has the function of extending the left and right lengths of the second galvanized steel pipe to a certain extent. At the same time, it also has the function of strengthening the docking fixation of the second galvanized steel pipe, so that the second galvanized steel pipe will not fall off easily, and further strengthen the stress of the second galvanized steel pipe.

[0019] 2. In this scheme, the use of this device solves the problem that the traditional prefabricated staircase embedded bolt reinforcement device cannot achieve the construction quality of the embedded bolts, thereby improving the construction quality of the device. At the same time, this device further standardizes the prefabricated stairs and improves the efficient operation and assembly of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a first side perspective view of the utility model;

[0022] Figure 2 It is a second side perspective view of the utility model;

[0023] Figure 3 It is an exploded view of the utility model;

[0024] In the figure: 1. first galvanized steel pipe; 2. hexagonal nut; 3. screw; 4. L-shaped screw; 5. thick steel plate; 6. fastener; 7. second galvanized steel pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example

[0027] See also Figure 1-3 , the utility model provides the following technical solutions:

[0028] A new type of prefabricated staircase embedded screw fixing tool includes:

[0029] Two first galvanized steel pipes 1;

[0030] A fixer 6, wherein two fixers 6 are provided, and the two fixers 6 are respectively fixedly connected to the circumferential surfaces of the two first galvanized steel pipes 1;

[0031] Thick steel plates 5, two thick steel plates 5 are provided, and the two thick steel plates 5 are respectively fixedly connected to the lower ends of the two first galvanized steel pipes 1;

[0032] The second galvanized steel pipe 7 is fixedly connected to one side end of the two fixers 6 .

[0033] In a specific embodiment of the present invention,

[0034] For details, please refer to Figure 1-3 Two first galvanized steel pipes 1 are respectively rotatably connected with two screw rods 3, and the length of the screw rods 3 is 3m.

[0035] In this embodiment: the first galvanized steel pipe 1 serves as the main body of the device, and has the function of strengthening the rotating installation screw 3. At the same time, the lower end of the first galvanized steel pipe 1 also has the function of supporting and fixing the thick steel plate 5. The first galvanized steel pipe 1 is also fixedly installed on the left and right ends of the second galvanized steel pipe 7. The detailed dimensions of the first galvanized steel pipe 1 are 20, the wall thickness is 2mm, and the length is 3m. The material of the first galvanized steel pipe 1 is galvanized. At the same time, the installation of the first galvanized steel pipe 1 is convenient. At the same time, the galvanized material of the first galvanized steel pipe 1 is lighter than the traditional iron pipe, and is rust-proof, has a long service life, and high durability. The fixture 6 is installed on the circumferential surface of the first galvanized steel pipe 1. The fixture 6 is fixedly installed in the middle of the first galvanized steel pipe 1 by welding technology. Then the fixture 6 supports and fixes the second galvanized steel pipe 7. Then the two first galvanized steel pipes 1 are docked and fixed. The thick steel plate 5 has a superimposed combined compressive strength of 350N / mm 2 , greater than the upper pressure 230N / mm 2 At the same time, the thick steel plate 5 also has the function of arbitrary welding. At the same time, the material of the thick steel plate 5 is stainless steel, which has the advantages of high durability and long service life. The material of the second galvanized steel pipe 7 is the same as the first galvanized steel pipe 1. At the same time, the main function of the second galvanized steel pipe 7 is to strengthen the docking and fixing relationship between the two first galvanized steel pipes 1.

[0036] For details, please refer to Figure 1-3 The lower ends of the two screw rods 3 are respectively fixedly connected with two L-shaped screw rods 4, and the length of the L-shaped screw rods 4 is 35 cm.

[0037] In this embodiment: the anchoring strength of the screw rod 3 meets the stress, and the material strength of the screw rod 3 is high. The on-site construction of a single screw rod 3 only takes 55 minutes, which is faster than the installation speed of a traditional T-type screw rod. The traditional T-type screw rod needs to be fixed at both ends on site, which takes 75 minutes.

[0038] For details, please refer to Figure 1-3 The circumferential surfaces of the two screw rods 3 are rotatably connected to two hexagonal nuts 2, and the material of the hexagonal nuts 2 is stainless steel.

[0039] In this embodiment: the hexagonal nut 2 has the same aperture as the first galvanized steel pipe 1 and can be used in combination, which strengthens the standardization of the fixed installation of the screw rod 3. At the same time, the fixation of the hexagonal nut 2 is more convenient and faster, and is more convenient to install than the traditional round nut.

[0040] For details, please refer to Figure 1-3 The length dimension of the thick steel plate 5 is 20 cm, the width dimension of the thick steel plate 5 is 20 cm, and the height dimension of the thick steel plate 5 is 5 mm.

[0041] In this embodiment: the material of the thick steel plate 5 is stronger in compressive strength than the traditional aluminum plate, and also has the flexibility of free welding. The specific data of the traditional aluminum plate is that the combined compressive strength of the aluminum plate stacking is 120N / mm 2 , less than the upper pressure 230N / mm 2 , cannot be welded.

[0042] For details, please refer to Figure 1-3 The material of the fixer 6 is stainless steel, and the length of the fixer 6 is 6 cm.

[0043] In this embodiment: the fixer 6 is easy to install, and the fixer 6 has the function of extending the left and right length of the second galvanized steel pipe 7 to a certain extent, and also has the function of strengthening the docking fixation of the second galvanized steel pipe 7, so that the second galvanized steel pipe 7 will not fall off easily, and the force on the second galvanized steel pipe 7 is further strengthened.

[0044] The working principle and use process of the utility model: The installation of the L-shaped screw 4 must comply with GB845, and then use the wire to fix the L-shaped screw 4 on the ladder beam steel bar, and then set up the first galvanized steel pipe 1 so that it can be inserted and rotated to the outer surface of the screw 3, and then the top of the screw 3 can be exposed, and at the same time, the exposed head of the screw 3 inserted into the first galvanized steel pipe 1 is controlled within 3mm, and the qualified rate is 100%, and then use the fixer 6 to dock the 20 diameter second galvanized steel pipe 7, and then use the second galvanized steel pipe 7 to dock the two first galvanized steel pipes 1, and the error between the screw 3 and the second galvanized steel pipe 7 is 3mm, and then use the welding process to fix the left and right positions of the first galvanized steel pipe 1, and then the screw 3 and the hexagonal nut 2 The installation of the adjustment must comply with BG / T5782, adjust the height of the screw 3, prevent the screw 3 from sliding up and down to ensure a 100% qualified rate, and then use screws and nuts to fix it, use the screw threads to fix the upper and lower positions of the first galvanized steel pipe 1, and then fix the thick steel plate 5 to the bottom of the first galvanized steel pipe 1 to ensure that the bottom of the device as a whole is tightly connected, and use screws and nuts to fix it. Finally, the installation and use of this device is completed. By using this device, the problem that the traditional prefabricated staircase embedded bolt reinforcement device has not achieved the quality of strengthening the construction of the embedded bolts, and the quality of the device construction has been improved. At the same time, this device further standardizes the prefabricated stairs and improves the efficient operation and assembly of the device.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A new type of prefabricated staircase embedded screw fixing tool, characterized in that include: two first galvanized steel pipes (1); A fixer (6), wherein two of the fixers (6) are provided, and the two fixers (6) are respectively fixedly connected to the circumferential surfaces of the two first galvanized steel pipes (1); Thick steel plates (5), two of the thick steel plates (5) are provided, and the two thick steel plates (5) are respectively fixedly connected to the lower ends of the two first galvanized steel pipes (1); A second galvanized steel pipe (7), wherein the second galvanized steel pipe (7) is fixedly connected to one side end of the two fixers (6).

2. A novel prefabricated staircase embedded screw fixing tool according to claim 1, characterized in that: Two screw rods (3) are rotatably connected in the two first galvanized steel pipes (1) respectively, and the length of the screw rods (3) is 3m.

3. A new type of prefabricated staircase embedded screw fixing tool according to claim 2, characterized in that: The lower ends of the two screw rods (3) are respectively fixedly connected to two L-shaped screw rods (4), and the length of the L-shaped screw rods (4) is 35 cm.

4. A novel prefabricated staircase embedded screw fixing tool according to claim 3, characterized in that: The circumferential surfaces of the two screw rods (3) are respectively rotatably connected to two hexagonal nuts (2), and the material of the hexagonal nuts (2) is stainless steel.

5. A novel prefabricated staircase embedded screw fixing tool according to claim 4, characterized in that: The length dimension of the thick steel plate (5) is 20 cm, the width dimension of the thick steel plate (5) is 20 cm, and the height dimension of the thick steel plate (5) is 5 mm.

6. A novel prefabricated staircase embedded screw fixing tool according to claim 5, characterized in that: The material of the fixator (6) is stainless steel, and the length of the fixator (6) is 6 cm.

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