CN220129068U - Precast beam type stair mould - Google Patents

Abstract

The utility model discloses a prefabricated beam stair mold, which relates to the technical field of stair molds. The bottom frame of the utility model is placed on the ground and has a first template fixed above it. A second template and two third templates are arranged above the first template. The first template, the second template The template and the two third templates conflict with each other and form a closed loop. When the utility model is in use, the user drives the second formwork and the two third formworks to collide with the first formwork through the first driving mechanism and the second driving mechanism, and then passes one end of the steel bar through the two third formworks in sequence, and Several sealing rings are limited to both sides of the two third formworks through the limiting mechanism. Finally, concrete is poured into the closed loop formed by the first formwork, the second formwork, and the two third formworks. After the concrete solidifies, That is, a driving mechanism and a second driving mechanism can be used to drive the second formwork and the two third formwork respectively to separate from the solidified concrete stairs.

Description

A kind of prefabricated beam staircase mold

Technical field

The utility model relates to the technical field of stair molds, in particular to a prefabricated beam stair mold.

Background technique

Beam-type stairs refer to the type of stairs in which the treads of the stair section are placed directly on the inclined beams, and the inclined beams are placed on the stair beams at both ends of the stair section (sometimes, due to stress requirements, three inclined beams are provided). The beam-type stairs are with Reinforced concrete staircase with inclined beams. It consists of treads, inclined beams, platform beams and platform plates; the treads are supported on the inclined beams; the inclined beams and platform plates are supported on the platform beams; the platform beams are supported on load-bearing walls or other load-bearing structures. Beam stairs are generally suitable for large and medium-sized stairs.

When making beam-type stairs, it is often necessary to use molds. The general production method is to pour concrete inside the mold legal person. After the concrete solidifies, the master workers will remove the mold to obtain a section of concrete stairs. Before pouring, it is generally necessary to pour concrete in the mold. Steel bars are embedded inside. The steel bars can not only improve the overall stability of the device, but also expose a section at both ends of the stairs for connecting other concrete formwork. In this way, the steel bars need to penetrate the surface of the mold, so that during the concrete setting process , concrete may leak from the gap where the steel bars are inserted into the mold. Therefore, a new type of prefabricated beam staircase mold is needed to solve the above problems.

Utility model content

In order to achieve the above purpose, the utility model specifically adopts the following technical solutions:

A prefabricated beam stair mold includes a bottom frame, which is placed on the ground and has a first formwork fixed above it. A second formwork and two third formwork are provided above the first formwork. The first template, the second template, and the two third templates conflict with each other and form a closed loop;

A first driving mechanism and a second driving mechanism, the first driving mechanism and the second driving mechanism respectively drive the second template and the two third templates to move along the splicing length;

Several steel bars, several of which are used to increase the load-bearing capacity of the stair concrete and both ends of which slide through the surfaces of the two third formworks respectively;

A plurality of sealing rings, which are respectively arranged on both sides of the two third templates and are respectively slidably sleeved on the surfaces of several of the steel bars, and also include a limiting mechanism, the limiting mechanism is To respectively limit the positions of several sealing rings on the surfaces of several steel bars.

Further, the chassis includes a load-bearing frame placed on the ground and a plurality of connecting rods, and both ends of the connecting rods are respectively fixed to both sides of the inner wall of the load-bearing frame.

Further, the first driving mechanism includes a mounting plate fixedly installed on the top of the load-bearing frame, a hydraulic rod is fixedly installed on the surface of the installation plate, and the output end of the hydraulic rod is fixedly installed on the second template. surface.

Further, the second driving mechanism includes two driving plates that are both fixedly installed on the surface of the first template. The surfaces of the two driving plates are fixedly installed with connecting plates. The surfaces of the two connecting plates are both fixed. A threaded rod runs through the thread, and one end of the two threaded rods is rotated and inserted into the surfaces of the two second templates respectively.

Further, the limiting mechanism includes a plurality of threaded grooves respectively opened on the surfaces of several of the steel bars. The surfaces of the several threaded grooves are threaded with internally threaded pipes. One end of the several internally threaded pipes They are respectively fixedly installed on one end of several sealing rings.

Further, several connecting rods are provided with sliding grooves on both sides, and rollers are slidably inserted into the inner walls of the plurality of sliding grooves, and several U-shaped rods are fixedly installed on the surface of the second template. plate, and the two ends of several U-shaped plates are respectively fixedly installed on the surfaces of several said rollers.

The beneficial effects of this utility model are as follows:

When the utility model is in use, the user drives the second formwork and the two third formworks to collide with the first formwork through the first driving mechanism and the second driving mechanism, and then passes one end of the steel bar through the two third formworks in sequence, and Several sealing rings are limited to both sides of the two third formworks through the limiting mechanism. Finally, concrete is poured into the closed loop formed by the first formwork, the second formwork, and the two third formworks. After the concrete solidifies, The first and second driving mechanisms can be used to drive the second formwork and the two third formworks respectively to separate from the solidified concrete stairs, and then the concrete stairs can be taken out from the surface of the first formwork using a form removal tool to complete the production. , during the solidification process of concrete, due to the existence of several sealing rings, the concrete is difficult to leak, which saves materials and ensures the quality of the stairs.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

Figure 2 is a partial three-dimensional structural diagram of the utility model from another angle;

Figure 3 is a schematic diagram of another part of the three-dimensional structure of the utility model;

Figure 4 is a schematic three-dimensional structural diagram of another part of the utility model.

Reference signs: 1. Base frame; 101. Load-bearing frame; 102. Connecting rod; 2. First template; 3. Second template; 4. Third template; 5. First driving mechanism; 501. Installation plate; 502 , hydraulic rod; 6. Second driving mechanism; 601. Driving plate; 602. Connecting plate; 603. Threaded rod; 7. Steel bar; 8. Sealing ring; 9. Limiting mechanism; 901. Threaded groove; 902. Internal thread Pipe; 10. Roller; 11. U-shaped plate.

Implementation

In order to make the purpose, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

This application provides a prefabricated beam stair mold, which is mainly used to solve the problem that the stair mold requires steel bars to penetrate the surface of the mold during the pouring process. In this way, during the concrete setting process, the concrete may be inserted into the gaps of the mold from the steel bars. The leakage problem is solved and the following technical solutions are provided. The following will be explained in detail in conjunction with Figures 1-4:

A prefabricated beam staircase mold includes a base frame 1, which is placed on the ground and has a first formwork 2 fixed above it. A second formwork 3 and two third formworks 4 are provided above the first formwork 2. The first template 2, the second template 3, and the two third templates 4 conflict with each other and form a closed loop; the first driving mechanism 5 and the second driving mechanism 6 drive the second template respectively. 3 and the two third formworks 4 move along the splicing length; several steel bars 7 are used to increase the load-bearing capacity of the stair concrete and both ends slide through the surfaces of the two third formworks 4 respectively; several steel bars 7 Sealing rings 8, several sealing rings 8 are respectively arranged on both sides of the two third templates 4 and are respectively slidably sleeved on the surfaces of several steel bars 7, and also include a limiting mechanism 9, which is used to respectively limit a plurality of sealing rings 8. A sealing ring 8 is located on the surface of several steel bars 7. In some embodiments, when in use, the user drives the second formwork 3 and the two third formworks 4 to collide with the first formwork 2 through the first driving mechanism 5 and the second driving mechanism 6, and then passes one end of the steel bar 7 through it in sequence. Pass the two third formwork 4, and limit several sealing rings 8 to both sides of the two third formwork 4 through the limiting mechanism 9, and finally add concrete to the first formwork 2, the second formwork 3, and the two third formworks 4. Inside the closed loop formed by a third formwork 4, after waiting for the concrete to solidify, the second formwork 3 and the two third formworks 4 can be driven respectively by a driving and a second driving mechanism 6 to separate from the concrete stairs after the solidification is completed, and then through The form removal tool removes the concrete staircase from the surface of the first formwork 2 to complete the production. During the solidification process of the concrete, due to the presence of several sealing rings 8, the concrete is difficult to leak, which saves materials and ensures that the The quality of the stairs.

As shown in Figure 3, specifically, the chassis 1 includes a load-bearing frame 101 placed on the ground and several connecting rods 102. Both ends of the several connecting rods 102 are respectively fixed to both sides of the inner wall of the load-bearing frame 101. It is necessary to It should be noted that the connecting rod 102 can pass the overall load-bearing capacity of the load-bearing frame 101 .

As shown in Figure 3, specifically, the first driving mechanism 5 includes a mounting plate 501 fixedly installed on the top of the load-bearing frame 101. A hydraulic rod 502 is fixedly installed on the surface of the installation plate 501, and the output end of the hydraulic rod 502 is fixedly installed on the second Regarding the surface of the template 3, it should be explained that the user can control the second template 3 to move above the load-bearing frame 101 by controlling the expansion and contraction of the hydraulic rod 502 to achieve alignment and removal of the mold.

As shown in Figure 2, specifically, the second driving mechanism 6 includes two driving plates 601 that are both fixedly installed on the surface of the first template 2. The surfaces of the two driving plates 601 are both fixedly installed with connecting plates 602. The two connecting plates Threaded rods 603 are threaded through the surface of 602. One ends of the two threaded rods 603 are respectively rotated and inserted into the surfaces of the two second templates 3. It should be noted that the user can drive the second template by rotating the threaded rod 603. Template 3 moves to complete the splicing and demoulding of the templates.

As shown in Figures 2 and 4, specifically, the limiting mechanism 9 includes a plurality of threaded grooves 901 respectively opened on the surfaces of several steel bars 7. The surfaces of the several threaded grooves 901 are all threaded with internally threaded pipes 902. One end of each internally threaded pipe 902 is fixedly installed on one end of several sealing rings 8. It should be explained that after the user inserts the steel bar 7 into one of the third templates 4, the user can pass the thread sleeves of two of the internally threaded pipes 902. Connected to two of the threaded grooves 901, the position of the sealing rings 8 provided inside the two third templates 4 is restricted, and finally the remaining two sealing rings 8 are restricted by the remaining two internally threaded pipes 902. The outer sides of the two third formwork plates 4 are arranged in this way so that the surfaces where the steel bars 7 are plugged into the two third formwork plates 4 are sealed, which effectively avoids liquid leakage and reflects the practicability of the device.

As shown in Figure 3, in some embodiments, several connecting rods 102 are provided with sliding grooves on both sides, and the inner walls of the plurality of sliding grooves are slidably inserted with rollers 10. There are also several connecting rods 102 that are fixedly installed on the second The two ends of the U-shaped plates 11 on the surface of the template 3 are respectively fixedly mounted on the surfaces of several rollers 10. It should be noted that when the second template 3 is moved, the several rollers 10 will Rolling on the inner walls of several sliding grooves ensures the stability of the second template 3 when moving.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A precast beam type stair mold, comprising:

the base frame (1), the base frame (1) is placed on the ground and a first template (2) is fixedly arranged above the base frame, a second template (3) and two third templates (4) are arranged above the first template (2), and the first template (2), the second template (3) and the two third templates (4) are mutually abutted to form a closed loop;

the first driving mechanism (5) and the second driving mechanism (6), wherein the first driving mechanism (5) and the second driving mechanism (6) respectively drive the second template (3) and the two third templates (4) to move along the splicing length;

the steel bars (7) are used for increasing the bearing capacity of the stair concrete, and two ends of the steel bars (7) respectively penetrate through the surfaces of the two third templates (4) in a sliding manner;

the sealing device comprises a plurality of sealing rings (8), wherein the plurality of sealing rings (8) are respectively arranged at two sides of the third template (4) and are respectively sleeved on the surfaces of the reinforcing steel bars (7) in a sliding manner, the sealing device further comprises a limiting mechanism (9), and the limiting mechanism (9) is used for respectively limiting the positions of the plurality of sealing rings (8) on the surfaces of the reinforcing steel bars (7).

2. The prefabricated beam type stair mold according to claim 1, wherein the underframe (1) comprises a bearing frame (101) placed on the ground and a plurality of connecting rods (102), and two ends of the connecting rods (102) are respectively fixed on two sides of the inner wall of the bearing frame (101).

3. A prefabricated beam type stair mould according to claim 2, characterized in that the first driving mechanism (5) comprises a mounting plate (501) fixedly mounted on the top of the bearing frame (101), a hydraulic rod (502) is fixedly mounted on the surface of the mounting plate (501), and the output end of the hydraulic rod (502) is fixedly mounted on the surface of the second template (3).

4. The prefabricated beam type stair mold according to claim 1, wherein the second driving mechanism (6) comprises two driving plates (601) fixedly installed on the surfaces of the first templates (2), connecting plates (602) are fixedly installed on the surfaces of the two driving plates (601), threaded rods (603) penetrate through the surfaces of the two connecting plates (602), and one ends of the two threaded rods (603) are respectively inserted into the surfaces of the two second templates (3) in a rotating mode.

5. The prefabricated beam type stair mold according to claim 1, wherein the limiting mechanism (9) comprises a plurality of thread grooves (901) which are respectively formed in the surfaces of the plurality of steel bars (7), the surfaces of the plurality of thread grooves (901) are respectively sheathed with an internal thread pipe (902), and one ends of the plurality of internal thread pipes (902) are respectively fixedly arranged at one ends of the plurality of sealing rings (8).

6. The prefabricated beam type stair mold according to claim 2, wherein sliding grooves are formed in two sides of the connecting rods (102), rollers (10) are slidably inserted into inner walls of the sliding grooves, the prefabricated beam type stair mold further comprises a plurality of U-shaped plates (11) fixedly installed on the surface of the second template (3), and two ends of the U-shaped plates (11) are fixedly installed on the surfaces of the rollers (10) respectively.