Building template removing device

Abstract

The utility model discloses a building template dismantling device, which belongs to the technical field of building construction and comprises a crowbar, one end of the crowbar is detachably connected with a mounting seat, the other end of the mounting seat is fixedly connected with two prying teeth, a mounting cavity is arranged in the middle of the crowbar, and an avoiding groove communicated with the mounting cavity is arranged on the outer wall of the crowbar. A knocking mechanism is arranged in the mounting cavity and used for knocking the formwork after the prying teeth extend into the gap between the formwork and the concrete wall, and the formwork and the concrete wall can be separated conveniently. The device has the beneficial effects that after the prying teeth are inserted into the gap between the formwork and the concrete wall, the prying bar is knocked through the knocking mechanism, the formwork is knocked indirectly, and the formwork can be separated from the concrete wall conveniently.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a building formwork removal device. Background Technology

[0002] Construction formwork is a temporary support structure, made according to design requirements, to shape concrete structures and components in the specified positions and geometric dimensions, maintain their correct position, and bear the self-weight of the formwork and the external loads acting on it. The formwork needs to be removed after the concrete is poured so that it can be reused or the site can be cleaned up. Most existing technologies use crowbars for removal. First, insert the tip of the crowbar into the gap between the formwork and the concrete surface, hold the crowbar with both hands, apply upward leverage, and gradually pry the formwork off the concrete surface.

[0003] A search of Chinese Patent Publication No. CN218563067U reveals a construction formwork removal device, comprising a prying mechanism and a pulling mechanism. The pulling mechanism is movably connected inside the prying mechanism. The prying mechanism consists of a bonding plate, a handle, a first rectangular groove, a first connecting column, a pry block, pry teeth, a clamping pin, a connecting ring, a pull rod, and a second rectangular groove. The bonding plate is fixedly connected to the surface of the prying mechanism, the handle is fixedly connected to the right end of the top of the bonding plate, the first rectangular groove is opened at the left end of the top of the bonding plate, the first connecting column is fixedly connected inside the first rectangular groove, the pry block is fixedly connected to the left side of the bonding plate, the pry teeth are opened on the left side of the pry block, the clamping pin is fixedly connected to the bottom of the bonding plate, the connecting ring is rotatably connected to the surface of the first connecting column, the pull rod is fixedly connected to the right side of the connecting ring, and the second rectangular groove is opened on the surface of the pull rod.

[0004] However, after the concrete is formed, the formwork is tightly bonded to the concrete wall, making it difficult to disassemble. Utility Model Content

[0005] The purpose of this utility model is to provide a building formwork removal device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A formwork removal device includes a crowbar, one end of which is detachably connected to a mounting base, and the other end of the mounting base is fixedly connected to two pry teeth. The crowbar has a mounting cavity in the middle, and the outer wall of the crowbar has a clearance groove communicating with the mounting cavity. A striking mechanism is provided in the mounting cavity. The striking mechanism is used to strike the formwork after the pry teeth are inserted into the gap between the formwork and the concrete wall, so as to facilitate the separation of the formwork from the concrete wall.

[0008] Preferably, the striking mechanism includes a striking hammer slidably connected between the inner walls of the mounting cavity and the striking hammer. A mounting ring is rotatably connected to the end of the striking hammer, and a pull rod is fixedly connected to the mounting ring. The end of the pull rod extends out of the clearance groove and is fixedly connected to a pull handle. The pull rod moves within the clearance groove. A spring is connected between the striking hammer and the mounting cavity. The striking mechanism also includes a limiting component for limiting the position of the striking hammer.

[0009] Preferably, the limiting component includes a slot, which communicates with a clearance slot and a mounting cavity.

[0010] Preferably, the slot is inclined, and the slot and the clearance slot are arranged in a V shape with the larger end facing the pry teeth.

[0011] Preferably, the inner wall of the mounting cavity has several protrusions that are arc-shaped.

[0012] Preferably, the outer wall of the end of the pry bar away from the mounting base is fixedly connected with an anti-slip sleeve.

[0013] The beneficial effects are as follows: Before removing the formwork, the hammer is pulled away from the pry bar by using the handle and lever. Then, the handle is rotated to engage the lever in the slot, avoiding the need to lift the pry bar and then pull the handle, thus saving effort. After inserting the pry bar into the gap between the formwork and the concrete wall, the handle is rotated to disengage the lever from the slot. The hammer strikes the pry bar under the action of the spring force, indirectly striking the formwork through the pry bar, making it easier to separate the formwork from the concrete wall. The slot is inclined, and the slot and the clearance groove are V-shaped with the larger end facing the pry bar, preventing the lever from getting stuck in the slot and then popping out.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a first schematic diagram of a building formwork removal device according to the present invention;

[0017] Figure 2 This is a second schematic diagram of a building formwork removal device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the crowbar in the formwork removal device of this utility model;

[0019] Figure 4This is a side view of a building formwork removal device according to the present invention;

[0020] Figure 5 This is a top view of the crowbar of the building formwork removal device described in this utility model.

[0021] The reference numerals in the attached drawings are explained as follows: 1. Pry bar; 2. Mounting base; 201. Pry bar teeth; 3. Anti-slip sleeve; 401. Mounting cavity; 402. Clearance groove; 403. Slot; 404. Hammer; 405. Mounting ring; 406. Pull rod; 407. Pull handle; 408. Spring; 409. Protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-5 As shown, a formwork removal device includes a crowbar 1. One end of the crowbar 1 is detachably connected to a mounting base 2 via a thread. The other end of the mounting base 2 is fixedly connected to two pry teeth 201. An anti-slip sleeve 3 is fixedly connected to the outer wall of the end of the crowbar 1 away from the mounting base 2. After inserting the pry teeth 201 into the gap between the formwork and the concrete wall, the crowbar 1 is pried up by holding the anti-slip sleeve 3 and applying an upward leverage force to gradually pry the formwork off the concrete surface.

[0026] The crowbar 1 has a mounting cavity 401 in the middle, and several protrusions 409 are fixedly connected inside the wall of the mounting cavity 401. The protrusions 409 are arc-shaped, and the outer wall of the crowbar 1 has a relief groove 402 that communicates with the mounting cavity 401.

[0027] A striking mechanism is provided inside the mounting cavity 401. This mechanism strikes the template after the pry teeth 201 extend into the gap between the template and the concrete wall, facilitating separation of the template from the concrete wall. The striking mechanism includes a striking hammer 404, which is slidably connected to the inner wall of the mounting cavity 401. An mounting ring 405 is rotatably connected to the end of the striking hammer 404. A pull rod 406 is fixedly connected to the mounting ring 405. The end of the pull rod 406 extends out of the clearance groove 402 and is fixedly connected to... The spherical handle 407 and the lever 406 move within the clearance groove 402. A spring 408 connects the hammer 404 and the mounting cavity 401. During the movement of the hammer 404, a certain vibration is generated under the action of the protrusion 409, which improves the striking effect. The mounting ring 405 is rotatably connected to the hammer 404, so that after the handle 407 pulls the hammer 404 to a certain position, the handle 407 can be used to push the lever 406, so that the lever 406 can be engaged in the slot 403.

[0028] The striking mechanism also includes a limiting component, which is used to limit the position of the striking hammer 404. The limiting component includes a slot 403, which is connected to the clearance slot 402 and the mounting cavity 401. The slot 403 is inclined and the slot 403 and the clearance slot 402 are V-shaped with the larger end facing the pry bar 201 to prevent the pull rod 406 from getting stuck in the slot 403 and then popping out.

[0029] Working principle: Before lifting the crowbar 1, firstly, pull the hammer 404 away from the pry bar 201 using the handle 407 and the lever 406. Then, rotate the handle 407 to engage the lever 406 in the slot 403, saving effort by avoiding having to pull the handle 407 after lifting the crowbar 1. Then, lift the crowbar 1, insert the pry bar 201 into the gap between the formwork and the concrete wall, and rotate the handle 407 to disengage the lever 406 from the slot 403. The hammer 404 swings back and forth under the force of the spring 408, striking the formwork with the crowbar 1 to facilitate separation of the formwork from the concrete wall. As the hammer 404 moves back and forth, it vibrates under the action of the protrusion 409, improving the striking effect. Then, hold the anti-slip sleeve 3 and apply an upward lever force to the crowbar 1 to gradually pry the formwork off the concrete surface.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A formwork removal device, comprising a crowbar (1), one end of which is detachably connected to a mounting base (2), and the other end of which is fixedly connected to two pry teeth (201), characterized in that: The crowbar (1) has an installation cavity (401) in the middle, and the outer wall of the crowbar (1) has a relief groove (402) that communicates with the installation cavity (401). The installation cavity (401) is provided with a striking mechanism, which is used to strike the template after the crowbar teeth (201) are inserted into the gap between the template and the concrete wall, so as to facilitate the separation of the template from the concrete wall.

2. The formwork removal device according to claim 1, characterized in that: The striking mechanism includes a striking hammer (404) that is slidably connected between the inner wall of the mounting cavity (401). The end of the striking hammer (404) is rotatably connected to a mounting ring (405). A pull rod (406) is fixedly connected to the mounting ring (405). The end of the pull rod (406) extends out of the clearance groove (402) and is fixedly connected to a handle (407). The pull rod (406) moves within the clearance groove (402). A spring (408) is connected between the striking hammer (404) and the mounting cavity (401). The striking mechanism also includes a limiting component for limiting the position of the striking hammer (404).

3. The formwork removal device according to claim 2, characterized in that: The limiting component includes a slot (403) that communicates with the clearance slot (402) and the mounting cavity (401).

4. A formwork removal device according to claim 3, characterized in that: The slot (403) is inclined, and the slot (403) and the clearance slot (402) are arranged in a V shape with the larger end facing the pry tooth (201).

5. A formwork removal device according to claim 1, characterized in that: The mounting cavity (401) has several protrusions (409) fixedly connected to its inner wall, and the protrusions (409) are arc-shaped.

6. A formwork removal device according to claim 1, characterized in that: An anti-slip sleeve (3) is fixedly connected to the outer wall of the end of the crowbar (1) away from the mounting base (2).

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