Formwork pulling device for building aluminum formwork

Abstract

The utility model provides a drawing device for a building aluminum template, which comprises a grasping rod, one end of the grasping rod is provided with a rod head used for being inserted in a pin hole on the side surface of the building aluminum template, the outer surface of one end of the grasping rod close to the rod head is fixedly connected with a support, and the middle part of one side surface of the support is provided with a rectangular hole. A rectangular rod is inserted in the rectangular hole, the end, close to the rod head, of the rectangular rod is rotationally connected with a rolling wheel, the face, away from the grabbing rod, of the support is in threaded connection with a positioning rod, a plurality of positioning holes matched with the positioning rod are formed in one side face of the rectangular rod, and the multiple positioning holes are formed in the length direction of the rectangular rod; the utility model has the beneficial effect that the surface of the building aluminum template is prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to a demoulding device for building aluminum formwork, belonging to the building field. Background Technique

[0002] Aluminum formwork is a new type of building formwork made of aluminum alloy. It is a green construction formwork emerging in the construction industry. It is adopted by various construction companies for its characteristics of simple operation, fast construction, high return, environmental protection and energy saving, multiple use times, good concrete pouring effect, recyclability, etc. Multiple pin holes are processed on the side of the aluminum formwork. When the aluminum formwork needs to be disassembled, a crowbar with a rod head is generally used. One end of the crowbar near the rod head is also welded with a jacking rod. The rod head is inserted into the pin hole on the aluminum formwork. At this time, one end of the jacking rod is in contact with the surface of the aluminum formwork, and the jacking rod plays a supporting role, that is, the crowbar plays the role of a lever fulcrum during the exerting process. During this process, the jacking rod will produce sliding friction with the surface of the aluminum formwork, scratching the aluminum formwork and causing burrs on the surface of the aluminum formwork. Workers are prone to scratching accidents when moving the aluminum formwork. Therefore, it is necessary to design a demoulding device for building aluminum formwork to prevent the surface of the building aluminum formwork from being scratched. Content of the Utility Model

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a demoulding device for building aluminum formwork to solve the problems put forward in the above background technique. The utility model prevents the surface of the building aluminum formwork from being scratched.

[0004] In order to achieve the above purpose, the utility model is realized through the following technical solutions: a demoulding device for building aluminum formwork includes a gripping rod. One end of the gripping rod is provided with a rod head for inserting into the pin hole on the side of the building aluminum formwork. The outer surface of the gripping rod near the rod head is fixedly connected with a support. A rectangular hole is opened in the middle of one side of the support. A rectangular rod is inserted into the rectangular hole. A roller is rotatably connected to one end of the rectangular rod near the rod head. A positioning rod is threadedly connected to the side of the support facing away from the gripping rod. A plurality of positioning holes matched with the positioning rod are opened on one side of the rectangular rod, and the plurality of positioning holes are arranged along the length direction of the rectangular rod.

[0005] Further, a straight cylinder is installed on the side of the support away from the grasping rod. The straight cylinder communicates with the rectangular hole. A fixing ring is fixedly connected at the middle position inside the straight cylinder. The inner surface of the fixing ring is machined with internal threads. The middle position of the outer surface of the positioning rod is machined with external threads that match the internal threads. One side of the external threads is provided with a first limiting ring. The first limiting ring is sleeved on the positioning rod and fixedly connected to the positioning rod. The first limiting ring is slidably installed inside the straight cylinder. The side of the external threads away from the first limiting ring is provided with a second limiting ring. The second limiting ring is sleeved on the positioning rod and fixedly connected to the positioning rod. The second limiting ring is slidably installed inside the straight cylinder. The end of the positioning rod away from the rectangular rod extends to the outside of the straight cylinder and is fixedly connected with a knob head.

[0006] Further, a perforation is provided at the position where the support installs the straight cylinder. The perforation communicates with the rectangular hole. One end of the straight cylinder is fixed inside the perforation.

[0007] Further, an arc-shaped groove is machined on the side of the support facing the grasping rod. The grasping rod is fixed inside the arc-shaped groove.

[0008] Further, a notch is machined at the end of the rectangular rod close to the rod head. Shaft holes are provided on two parallel side surfaces inside the notch. Circular shafts are fixedly connected to the middle positions of two parallel side surfaces of the roller. The circular shafts are rotatably installed inside the shaft holes.

[0009] Further, the rod head is perpendicularly arranged with respect to the grasping rod. The rod head and the grasping rod are of an integrally formed structure. The diameter of the rod head gradually decreases in the direction away from the grasping rod.

[0010] Advantages of the utility model:

[0011] 1. The roller is rotatably installed on the rectangular rod. After the rod head is inserted into the pin hole on the aluminum formwork, the roller contacts the side surface of the aluminum formwork. Then, when the worker applies pressure through the grasping rod, rolling contact will occur between the roller and the aluminum formwork, thereby preventing the surface of the building aluminum formwork from being scratched and reducing the probability that the worker is scratched by the burrs on the aluminum formwork during the taking process, improving safety.

[0012] 2. Adjust the position of the rectangular rod along the rectangular hole to change the distance between the roller and the rod head. After the distance between the roller and the rod head meets the requirements, insert one end of the positioning rod into the corresponding positioning hole to fix the relative position of the rectangular rod and the grasping rod, and realize adjusting the distance between the roller and the rod head according to the wear degree of the roller, which is beneficial to improving the utilization rate of the roller.

[0013] 3. Thread-connect the part of the positioning rod where the external thread is processed inside the fixed ring, and fix the fixed ring inside the straight tube. At this time, both the first limiting ring and the second limiting ring on the positioning rod are slidably installed inside the straight tube, so that the threaded connection part between the positioning rod and the fixed ring is located in the closed space formed by the first limiting ring, the second limiting ring and the straight tube, preventing small sundries from randomly entering the threaded connection part between the positioning rod and the fixed ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present utility model will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 FIG. is a schematic structural diagram of a demolding device for a building aluminum formwork of the present utility model;

[0016] Figure 2 FIG. is a perspective view of a support in a demolding device for a building aluminum formwork of the present utility model;

[0017] Figure 3 FIG. is a perspective view of a rectangular rod in a demolding device for a building aluminum formwork of the present utility model;

[0018] Figure 4 FIG. is an assembly schematic diagram of a fixed ring, a first limiting ring, a second limiting ring and a positioning rod in a demolding device for a building aluminum formwork of the present utility model;

[0019] Figure 5 FIG. is an assembly schematic diagram of a positioning rod, a fixed ring and a straight tube in a demolding device for a building aluminum formwork of the present utility model;

[0020] In the figure: 1 - gripping rod, 2 - rectangular rod, 3 - rod head, 4 - roller, 5 - straight tube, 6 - knob head, 7 - support, 8 - rectangular hole, 9 - through hole, 10 - arc groove, 11 - positioning hole, 12 - notch, 13 - positioning rod, 14 - first limiting ring, 15 - fixed ring, 16 - second limiting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please refer to Figure 1 , the present utility model provides a technical solution: a demolding device for a building aluminum formwork, including a gripping rod 1, and a rod head 3 for inserting into a pin hole on the side of the building aluminum formwork is installed at one end of the gripping rod 1. Among them, the rod head 3 is vertically arranged with respect to the gripping rod 1, and the rod head 3 and the gripping rod 1 are integrally formed structures, so that the diameter of the rod head 3 gradually decreases in the direction away from the gripping rod 1, which is beneficial to inserting the rod head 3 into pin holes with different inner diameters.

[0023] See also Figure 1 and Figure 2 A support 7 is connected and fixed to the outer surface of one end of the gripping rod 1 close to the rod head 3, wherein the support 7 is processed with an arc groove 10 on the side facing the gripping rod 1, so that the gripping rod 1 is fixed in the arc groove 10, thereby increasing the connection range between the support 7 and the gripping rod 1 and improving the mechanical strength of the connection between the support 7 and the gripping rod 1.

[0024] See also Figure 1 , Figure 2 and Figure 3 A rectangular hole 8 is provided in the middle of one side of the support 7, a rectangular rod 2 is inserted in the rectangular hole 8, a notch 12 is provided at one end of the rectangular rod 2 close to the rod head 3, and axial holes are provided on two parallel sides in the notch 12. Round shafts are connected and fixed to the middle positions of the two parallel sides of the roller 4, so that the two round shafts are rotatably installed in the two axial holes respectively, so as to realize the rotational connection between the roller 4 and the rectangular rod 2. The roller 4 is rotatably installed on the rectangular rod 2, so that after the rod head 3 is inserted in the pin hole on the aluminum template, the roller 4 contacts the side of the aluminum template, and then when the worker applies pressure by grasping the rod 1, the roller 4 will generate rolling contact with the aluminum template, thereby preventing the surface of the building aluminum template from being scratched, reducing the probability of workers being scratched by burrs on the aluminum template during the picking process, and improving safety.

[0025] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 A positioning rod 13 is threadedly connected to the side of the support 7 facing away from the gripping rod 1, and a plurality of positioning holes 11 cooperating with the positioning rod 13 are opened on one side of the rectangular rod 2. The plurality of positioning holes 11 are arranged along the length direction of the rectangular rod 2. The position of the rectangular rod 2 is adjusted along the rectangular hole 8 to change the spacing between the roller 4 and the rod head 3. When the spacing between the roller 4 and the rod head 3 meets the needs, one end of the positioning rod 13 is inserted into the corresponding positioning hole 11 to fix the relative position of the rectangular rod 2 and the gripping rod 1, and to adjust the spacing between the roller 4 and the rod head 3 according to the wear of the roller 4, which is beneficial to improve the utilization rate of the roller 4.

[0026] See also Figures 1-5A through hole 9 is provided on one side of the support 7 away from the gripping rod 1, and the through hole 9 is communicated with the rectangular hole 8, so that one end of the straight tube 5 is fixed in the through hole 9, so that the straight tube 5 is communicated with the rectangular hole 8, and a fixing ring 15 is connected and fixed in the middle position inside the straight tube 5, and the inner surface of the fixing ring 15 is processed with an internal thread, and the middle position of the outer surface of the positioning rod 13 is processed with an external thread matching the internal thread, so that the part of the positioning rod 13 processed with the external thread is threadedly connected in the fixing ring 15, so that one end of the positioning rod 13 can be easily moved in and out of the positioning hole 11 by twisting, and a first limiting ring 14 is provided on one side of the external thread, and the first limiting ring 14 is sleeved on the positioning rod 13 and connected and fixed to the positioning rod 13, and the first limiting ring 14 is slidably installed in the straight tube 5, and the external thread is away from the first limiting ring 14. A second limiting ring 16 is provided on the side, the second limiting ring 16 is sleeved on the positioning rod 13 and is connected and fixed to the positioning rod 13, the second limiting ring 16 is slidably installed in the straight tube 5, the positioning rod 13 extends to the outside of the straight tube 5 at one end away from the rectangular rod 2 and is connected and fixed with a knob head 6, so that the part of the positioning rod 13 with an external thread is threadedly connected in the fixing ring 15, and the fixing ring 15 is fixed in the straight tube 5. At this time, the first limiting ring 14 and the second limiting ring 16 on the positioning rod 13 are both slidably installed in the straight tube 5, so that the threaded connection part of the positioning rod 13 and the fixing ring 15 is in the closed space formed by the first limiting ring 14, the second limiting ring 16 and the straight tube 5, so as to prevent small debris from entering the threaded connection part between the positioning rod 13 and the fixing ring 15 at will.

[0027] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A demolding device for building aluminum formwork, comprising a gripping rod (1), characterized in that: One end of the gripping rod (1) is provided with a rod head (3) for inserting into the pin hole on the side of the building aluminum formwork. The outer surface of the gripping rod (1) near one end of the rod head (3) is fixedly connected with a support (7). A rectangular hole (8) is formed in the middle of one side surface of the support (7). A rectangular rod (2) is inserted into the rectangular hole (8). One end of the rectangular rod (2) near the rod head (3) is rotatably connected with a roller (4). A positioning rod (13) is threadedly connected to the side of the support (7) facing away from the gripping rod (1). A plurality of positioning holes (11) matching with the positioning rod (13) are formed in one side surface of the rectangular rod (2), and the plurality of positioning holes (11) are arranged along the length direction of the rectangular rod (2).

2. The demolding device for a building aluminum formwork according to claim 1, characterized in that: A straight cylinder (5) is installed on the side of the support (7) facing away from the gripping rod (1). The straight cylinder (5) communicates with the rectangular hole (8). A fixing ring (15) is fixedly connected at the middle position inside the straight cylinder (5). The inner surface of the fixing ring (15) is processed with internal threads. The outer surface of the middle position of the positioning rod (13) is processed with external threads matching with the internal threads. A first limiting ring (14) is arranged on one side of the external threads. The first limiting ring (14) is sleeved on the positioning rod (13) and fixedly connected with the positioning rod (13). The first limiting ring (14) is slidably installed inside the straight cylinder (5). A second limiting ring (16) is arranged on the side of the external threads away from the first limiting ring (14). The second limiting ring (16) is sleeved on the positioning rod (13) and fixedly connected with the positioning rod (13). The second limiting ring (16) is slidably installed inside the straight cylinder (5). One end of the positioning rod (13) away from the rectangular rod (2) extends to the outside of the straight cylinder (5) and is fixedly connected with a knob head (6).

3. The demolding device for building aluminum formwork according to claim 2, characterized in that: A through hole (9) is formed at the position of the support (7) where the straight cylinder (5) is installed. The through hole (9) communicates with the rectangular hole (8). One end of the straight cylinder (5) is fixed in the through hole (9).

4. The demolding device for building aluminum formwork according to claim 2, characterized in that: The side of the support (7) facing the gripping rod (1) is processed with an arc-shaped groove (10), and the gripping rod (1) is fixed in the arc-shaped groove (10).

5. The demolding device for a building aluminum formwork according to claim 1, characterized in that: One end of the rectangular rod (2) near the rod head (3) is processed with a notch (12). Axial holes are formed in two parallel side surfaces inside the notch (12). Circular shafts are fixedly connected at the middle positions of two parallel side surfaces of the roller (4), and the circular shafts are rotatably installed in the axial holes.

6. The demolding device for building aluminum formwork according to claim 1, wherein: The rod head (3) is perpendicularly arranged with the gripping rod (1). The rod head (3) and the gripping rod (1) are of an integrally formed structure. The diameter of the rod head (3) gradually decreases in the direction away from the gripping rod (1).

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