Pneumatic auxiliary device for rapid demolding in precast beam field

Abstract

The utility model discloses a pneumatic auxiliary device for quick demoulding in a precast beam field, which belongs to the technical field of precast beams and comprises two precast beam moulds, a plurality of equidistant auxiliary frames are embedded in the middle ends of the two precast beam moulds, and the outer sides of the two rows of auxiliary frames are provided with shunting pipes. A guide pipe is fixedly connected between the output end of the flow dividing pipe and the outer side of each auxiliary frame. The sealing rubber sleeve and the pushing piece are sequentially connected in the auxiliary frame in a sealed and sleeved mode, when the precast beam is prepared to be demolded, the air pipe introduces air into the flow dividing pipe, then the sealing rubber sleeve longitudinally extends through air pressure, the second rectangular frame plate and the pushing piece are pushed outwards, separation of the precast beam and the precast beam mold is facilitated, and the production efficiency of the precast beam is improved. And later, the air pressure enables a plurality of material pushing air bags of the pushing piece to expand and bulge, demolding of the precast beam is further assisted, and a flow control valve is fixedly arranged in the guide pipe, so that each part of the precast beam is synchronously demolded during demolding, and non-uniform force caused by asynchronous demolding is avoided.

Description

Technical Field

[0001] This utility model relates to the field of precast beam technology, and in particular to a pneumatic auxiliary device for rapid demolding in a precast beam yard. Background Technology

[0002] Precast beams are beams that are prefabricated in a factory and then transported to the construction site for installation and fixing according to design requirements. They are usually made of concrete or steel and are commonly used components in the construction industry for structural support in bridges, buildings, and other structures. Precast beams have advantages such as short production cycles, high construction efficiency, stable and controllable quality, and minimal space occupation on the construction site.

[0003] Precast beams are mostly made using custom-made molds during the manufacturing process, which inevitably requires demolding. Whether it's hoisting for demolding or removing the formwork, manual hammering is needed to assist in separating the formwork from the precast beam. Then, gantry cranes or other hoisting equipment are used to completely remove the formwork. However, because manual hammering is slow, and controlling the hammering force and maintaining uniform hammering points easily leads to problems such as cracks, chipped edges, and broken corners in the precast beams, it also causes significant damage to the formwork, shortening its lifespan. Therefore, a pneumatic auxiliary device for rapid demolding in precast beam yards is proposed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pneumatic auxiliary device for rapid demolding in precast beam yards.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pneumatic auxiliary device for rapid demolding in a precast beam yard includes precast beam molds. Multiple equidistant auxiliary frames are embedded in the middle of two precast beam molds. Diverter pipes are provided on the outer sides of both rows of auxiliary frames. A conduit is fixedly connected between the output end of each diverter pipe and the outer side of each auxiliary frame. A first rectangular frame plate is fixedly installed on the inner wall of opposite ends of the two auxiliary frames in each row. A second rectangular frame plate is provided on the outer side of the first rectangular frame plate. Sealing rubber sleeves are fixedly installed between the four outer walls of the first and second rectangular frame plates. A rectangular plate is fixedly installed on the inner side of the second rectangular frame plate. A pusher is fixedly connected to the outer side of the rectangular plate. A main pipe is fixedly connected to the middle of the rectangular plate. Multiple equidistant pushing airbags are provided on the outer side of the pusher. Branch pipes are fixedly connected to the upper and lower ends of the main pipe. A sealing sliding sleeve is fixedly installed at the input end of the main pipe.

[0007] Preferably, the inlet end of the shunt tube is fixedly connected to an air tube.

[0008] Preferably, a flow control valve is fixedly installed inside the conduit.

[0009] Preferably, a limiting sleeve is fixedly installed between the output end of the conduit and the inner wall of the auxiliary frame, and the sealing sleeve is slidably sleeved with the conduit, and the main pipe is slidably sleeved with the limiting sleeve.

[0010] Preferably, the two branch pipes are located between the first rectangular frame plate and the second rectangular frame plate.

[0011] Preferably, the rectangular plate is located inside the sealing rubber sleeve.

[0012] Preferably, the outer side of the pusher is slidably sleeved with the second rectangular frame plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model proposes a pneumatic auxiliary device for rapid demolding of precast beams. Multiple equidistant auxiliary frames are embedded in the middle of two precast beam molds. Two branch pipes are located between a first rectangular frame plate and a second rectangular frame plate. The rectangular frame plate is located inside a sealing rubber sleeve, and the outer side of the pusher is slidably sleeved with the second rectangular frame plate. The auxiliary frames are sequentially sealed with a sealing rubber sleeve and a pusher. When the precast beam is ready for demolding, air is introduced into the distribution pipe through the air pipe, filling each set of conduits, main pipes, and branch pipes. The air pressure first extends the sealing rubber sleeve longitudinally, pushing the second rectangular frame plate and the pusher outwards, facilitating the separation of the precast beam from the precast beam mold. Later, the air pressure causes multiple pushing airbags in the pusher to expand, further aiding in the demolding of the precast beam. A flow control valve is fixedly installed inside the conduit, ensuring that each part of the precast beam demolds synchronously, avoiding uneven force caused by asynchronous demolding, which could lead to cracks, missing edges, or chipped corners in the precast beam.

[0015] 2. The present invention proposes a pneumatic auxiliary device for rapid demolding of precast beam yards. A limiting sleeve is fixedly installed between the output end of the duct and the inner wall of the auxiliary frame. The sealing sleeve is slidably sleeved with the duct, and the main pipe is slidably sleeved with the limiting sleeve. When the air pressure causes the sealing rubber sleeve to extend longitudinally and the pusher to be pushed outward, the sealing sleeve is slidably sleeved inside the duct, and the main pipe is slidably sleeved inside the limiting sleeve, ensuring stable airflow and avoiding gas leakage that leads to unstable air pressure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the pneumatic auxiliary device for rapid demolding in a precast beam yard, as proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the auxiliary frame of a pneumatic auxiliary device for rapid demolding of precast beam yards proposed in this utility model.

[0018] Figure 3 A schematic diagram of the structure of the pneumatic auxiliary device for rapid demolding in a precast beam yard, as proposed in this utility model, showing the bulging of the pusher component;

[0019] Figure 4 This is a schematic diagram of the internal structure of the pusher component of a pneumatic auxiliary device for rapid demolding in a precast beam yard, as proposed in this utility model.

[0020] In the figure: 1 Precast beam mold, 2 Auxiliary frame, 3 Conduit, 4 Flow control valve, 5 Diverter pipe, 6 Air pipe, 7 First rectangular frame plate, 8 Second rectangular frame plate, 9 Sealing rubber sleeve, 10 Rectangular plate, 11 Pusher, 12 Pusher airbag, 13 Main pipe, 14 Branch pipe, 15 Sealing sliding sleeve, 16 Limiting sleeve. Detailed Implementation

[0021] Reference Figure 1-4 A pneumatic auxiliary device for rapid demolding of precast beams includes a precast beam mold 1. Multiple equidistant auxiliary frames 2 are embedded in the middle of two precast beam molds 1. Diverter pipes 5 are provided on the outer sides of both rows of auxiliary frames 2. A conduit 3 is fixedly connected between the output end of the diverter pipe 5 and the outer side of each auxiliary frame 2. A first rectangular frame plate 7 is fixedly installed on the inner wall of the opposite ends of the two auxiliary frames 2 in each row. A second rectangular frame plate 8 is provided on the outer side of the first rectangular frame plate 7. A sealing rubber sleeve 9 is fixedly installed between the four outer walls of the first rectangular frame plate 7 and the second rectangular frame plate 8. A rectangular plate 10 is fixedly installed on the inner side of the second rectangular frame plate 8. A pusher 11 is fixedly connected to the outer side of the rectangular plate 10. A main pipe 13 is fixedly connected in the middle of the rectangular plate 10. Multiple equidistant pushing airbags 12 are provided on the outer side of the pusher 11. Branch pipes 14 are fixedly connected to the upper and lower ends of the main pipe 13. A sealing sliding sleeve 15 is fixedly installed at the input end of the main pipe 14.

[0022] In this utility model, the input end of the diversion pipe 5 is fixedly connected to the air pipe 6;

[0023] A flow control valve 4 is fixedly installed inside the conduit 3;

[0024] A limiting sleeve 16 is fixedly installed between the output end of the conduit 3 and the inner wall of the auxiliary frame 2, and the sealing sleeve 15 is slidably sleeved with the conduit 3, and the main pipe 13 is slidably sleeved with the limiting sleeve 16.

[0025] The two branch pipes 14 are located between the first rectangular frame plate 7 and the second rectangular frame plate 8;

[0026] The rectangular plate 10 is located inside the sealing rubber sleeve 9;

[0027] The outer side of the pusher 11 is slidably sleeved with the second rectangular frame plate 8.

[0028] Working principle: Multiple equidistant auxiliary frames 2 are embedded in the middle of two precast beam molds 1, with two branch pipes 14 located between the first rectangular frame plate 7 and the second rectangular frame plate 8. The rectangular plate 10 is located inside the sealing rubber sleeve 9, and the outer side of the pusher 11 is slidably sleeved with the second rectangular frame plate 8. This allows the auxiliary frame 2 to be sequentially sealed with the sealing rubber sleeve 9 and the pusher 11. When the precast beam is ready for demolding, the air pipe 6 introduces gas into the branch pipe 5, causing the airflow to fill the conduit 3, main pipe 13, and branch pipes of each group. Pipe 14, and then through air pressure, the sealing rubber sleeve 9 is extended longitudinally to push the second rectangular frame plate 8 and the pusher 11 outward, which helps to separate the precast beam from the precast beam mold 1. Later, the air pressure causes the multiple pushing airbags 12 of the pusher 11 to expand and bulge, further assisting the demolding of the precast beam. In addition, the flow control valve 4 is fixedly installed inside the conduit 3 so that each part of the precast beam is demolded synchronously, avoiding uneven force caused by asynchronous demolding, which could lead to problems such as cracks, missing edges and corners in the precast beam.

[0029] A limiting sleeve 16 is fixedly installed between the output end of the conduit 3 and the inner wall of the auxiliary frame 2, and the sealing sleeve 15 is slidably sleeved with the conduit 3, and the main pipe 13 is slidably sleeved with the limiting sleeve 16. When the air pressure causes the sealing rubber sleeve 9 to extend longitudinally and the pusher 11 to be pushed outward, the sealing sleeve 15 is slidably sleeved inside the conduit 3, and the main pipe 13 is slidably sleeved inside the limiting sleeve 16, ensuring stable airflow and avoiding gas leakage that could lead to unstable air pressure.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pneumatic auxiliary device for rapid demolding in a precast beam yard, comprising a precast beam mold (1), characterized in that, Multiple equidistant auxiliary frames (2) are embedded in the middle of the two precast beam molds (1), and diversion pipes (5) are provided on the outer side of each row of auxiliary frames (2). A conduit (3) is fixedly connected between the output end of the diversion pipe (5) and the outer side of each auxiliary frame (2). A first rectangular frame plate (7) is fixedly installed on the inner wall of the opposite ends of the two auxiliary frames (2) in each row, and a second rectangular frame plate (8) is provided on the outer side of the first rectangular frame plate (7). The first rectangular frame plate (7) and the second rectangular frame plate (8) are... (8) A sealing rubber sleeve (9) is fixedly installed between the four outer walls. A rectangular plate (10) is fixedly installed on the inner side of the second rectangular frame plate (8). A pusher (11) is fixedly connected to the outer side of the rectangular plate (10). A main pipe (13) is fixedly connected in the middle of the rectangular plate (10). Multiple pusher airbags (12) are provided on the outer side of the pusher (11). A branch pipe (14) is fixedly connected to the upper and lower ends of the circumference of the main pipe (13). A sealing sliding sleeve (15) is fixedly installed at the input end of the main pipe (13).

2. The pneumatic auxiliary device for rapid demolding in a precast beam yard according to claim 1, characterized in that, The inlet end of the shunt pipe (5) is fixedly connected to an air pipe (6).

3. The pneumatic auxiliary device for rapid demolding in a precast beam yard according to claim 1, characterized in that, A flow control valve (4) is fixedly installed inside the conduit (3).

4. The pneumatic auxiliary device for rapid demolding in a precast beam yard according to claim 3, characterized in that, A limiting sleeve (16) is fixedly installed between the output end of the conduit (3) and the inner wall of the auxiliary frame (2), and the sealing sleeve (15) is slidably sleeved with the conduit (3), and the main pipe (13) is slidably sleeved with the limiting sleeve (16).

5. The pneumatic auxiliary device for rapid demolding in a precast beam yard according to claim 1, characterized in that, The two branch pipes (14) are located between the first rectangular frame plate (7) and the second rectangular frame plate (8).

6. The pneumatic auxiliary device for rapid demolding in a precast beam yard according to claim 1, characterized in that, The rectangular plate (10) is located inside the sealing rubber sleeve (9).

7. The pneumatic auxiliary device for rapid demolding in a precast beam yard according to claim 1, characterized in that, The outer side of the pusher (11) is slidably sleeved with the second rectangular frame plate (8).

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