A tool for assisting in the removal of formwork from a concrete pavement
Patent Information
- Application Number
- CN202522533633.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-28
AI Technical Summary
[0003]目前,由于现有的拆除锚地钢钎的装置都过于复杂和笨重不便于携带
本实用新型中通过利用夹持头和支撑弧形杆铰接构成的交叉铰接机构,对锚地钢钎进行夹持,并结合支撑弧形杆另一端放置在加固肋上作为支点,配合上升杆另一端高度升高,实现基于杠杆原理的锚地钢钎向上拔除结果。整体结构简单,操作便捷、适配范围大且便于携带。
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Figure CN224901937U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete formwork removal technology, specifically to an auxiliary tool for removing concrete pavement formwork. Background Technology
[0002] In the construction of infrastructure such as highways and municipal roads, concrete pavement has become a widely used pavement structure due to its high strength, high stability, and long service life. Currently, standardized steel formwork is typically used for concrete pavement pouring. During the fabrication of the steel formwork, a reinforcing rib is installed at one-meter intervals, and the formwork is reinforced with steel stakes anchored at these ribs. However, removing the anchored steel stakes is a crucial step in improving the efficiency of formwork removal.
[0003] Currently, existing devices for removing anchor steel bars are too complex, bulky, and inconvenient to carry. Therefore, the most common method for removing anchor steel bars in the industry is still to loosen the bars with a hammer and then slowly pull them out. This method relies entirely on manual labor, is extremely labor-intensive, and poses a safety hazard of injury to hands and feet due to improper operation. In addition, loosening the bars with a hammer causes significant disturbance to the steel formwork, which can easily damage the edges and corners of the concrete pavement, resulting in quality defects such as chipped edges and corners.
[0004] Furthermore, besides being difficult to carry, existing handheld devices for removing ground anchor rods have limited applicability. For example, the Chinese patent with publication number CN219219000U, entitled "A Portable Device for Removing Ground Anchor Rods," has limited applicable scenarios. If the ground anchor rod to be removed has hanging parts or restraining rings, the device cannot avoid them, greatly increasing the workload for construction workers. In muddy and narrow working spaces at construction sites, the difficulty of handling and operation increases, and the lack of anti-slip and anti-tipping designs makes it easy to lose balance when working on wet and slippery ground, affecting operational safety.
[0005] In view of the shortcomings of the existing technology, this utility model provides a portable and widely applicable auxiliary concrete pavement demolding tool. Utility Model Content
[0006] Therefore, the technical problem to be solved by this utility model is to overcome the defects existing in the prior art and thus provide an auxiliary tool for demolding concrete pavement.
[0007] An auxiliary concrete pavement formwork removal tool includes: a rising rod, a supporting arc rod, and a clamping head; One end of the clamping head is fixed to one end of the rising rod; The clamping head and the supporting arc rod are hinged together to form a cross-hinged mechanism, so that the other end of the clamping head and one end of the supporting arc rod can cooperate to clamp the anchor steel rod.
[0008] Preferably, the straight-line distance from the hinge point of the clamping head and the supporting arc rod to the other end of the clamping head is equal to the straight-line distance from the hinge point of the clamping head and the supporting arc rod to one end of the supporting arc rod.
[0009] Preferably, anti-slip pads are provided on the other end of the clamping head, one end of the supporting arc rod, and the other end of the supporting arc rod.
[0010] Preferably, the clamping head has a central through hole adapted to the range of motion of the supporting arc rod when hinged; One end of the supporting arc-shaped rod passes through the central through hole.
[0011] Preferably, the clamping head and the supporting arc-shaped rod are hinged, and the specific structure adopted is as follows: The hinge shaft passes through one side of the clamping head, the supporting arc-shaped rod placed in the through hole, and the other side of the clamping head in sequence, so that the clamping head and the supporting arc-shaped rod are hinged, and the clamping head is limited to the hinge shaft based on the limiting structure at both ends of the hinge shaft.
[0012] The technical solution of this utility model has the following advantages: This invention utilizes a cross-hinged mechanism consisting of a clamping head and a supporting arc-shaped rod to clamp the anchor steel rod. The other end of the supporting arc-shaped rod is placed on a reinforcing rib as a fulcrum, and the other end of the rising rod is raised to achieve upward removal of the anchor steel rod based on the lever principle. The overall structure is simple, easy to operate, widely adaptable, and portable. Attached Figure Description
[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of Example 1; Figure 2 for Figure 1 The diagram shows the structure of the clamping head. Figure 3 This is a schematic diagram of the simulated structure when applied in Example 1.
[0015] Explanation of reference numerals in the attached figures: 1-Rising rod, 2-Clamping head, 3-Supporting arc rod, 21-First connecting steel plate, 22-Second connecting steel plate, 23-First main clamping steel plate, 24-High-strength bolt, 4-Anchoring steel rod. Detailed Implementation
[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0019] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0020] Example 1 like Figure 1 This embodiment discloses an auxiliary concrete pavement formwork removal tool, including: a rising rod 1, a supporting arc rod 3, and a clamping head 2; One end of the clamping head 2 is fixed to one end of the rising rod 1; The clamping head 2 and the supporting arc rod 3 are hinged to form a cross-hinged mechanism, so that the other end of the clamping head 2 and one end of the supporting arc rod 3 cooperate to clamp the anchor steel rod 4.
[0021] Specifically: The straight-line distance from the hinge point of the clamping head 2 and the supporting arc rod 3 to the other end of the clamping head 2 is equal to the straight-line distance from the hinge point of the clamping head 2 and the supporting arc rod 3 to one end of the supporting arc rod 3.
[0022] Anti-slip pads are provided on the other end of the clamping head 2, one end of the supporting arc rod 3, and the other end of the supporting arc rod 3.
[0023] The clamping head 2 has a central through hole that is adapted to the range of motion of the supporting arc rod 3 when hinged; One end of the supporting arc-shaped rod 3 passes through the central through hole.
[0024] The clamping head 2 and the supporting arc-shaped rod 3 are hinged together, and the specific structure adopted is as follows: The hinge shaft passes through one side of the clamping head 2, the supporting arc rod 3 placed in the through hole, and the other side of the clamping head 2 in sequence, so that the clamping head 2 and the supporting arc rod 3 are hinged, and the clamping head 2 is limited to the hinge shaft based on the limiting structure at both ends of the hinge shaft.
[0025] Furthermore, in this embodiment, the rising rod 1 is made of hollow steel pipe; like Figure 2 The clamping head 2 is composed of a first connecting steel plate 21, a second connecting steel plate 22, and a first main clamping steel plate 23, which serves as an anti-slip pad. One end of the first connecting steel plate 21 and one end of the second connecting steel plate 22 are both fixedly connected to one end of the rising rod 1. The other end of the first connecting steel plate 21 and the other end of the second connecting steel plate 22 are both fixedly connected to the first main clamping steel plate 23; the gap between the first connecting steel plate 21 and the second connecting steel plate 22 forms a central through hole.
[0026] The first connecting steel plate 21, the second connecting steel plate 22, and the supporting arc-shaped rod 3 are all provided with bolt holes for fitting to the hinge shaft. Specifically, in this embodiment, the hinge shaft is specifically made of high-strength bolts 24.
[0027] It should be noted that the materials used for each device can be selected according to actual needs in practical applications. The specific design parameters of each device can be set according to the dimensions of the reinforcing ribs in actual applications. In addition, for ease of carrying, each device can be designed with a folding and telescopic structure while ensuring that the materials meet the basic rigidity requirements, making the overall device easy to carry in a storage box.
[0028] Example 2 like Figure 3 Based on Example 1, this example further discloses the specific process of using an auxiliary concrete pavement formwork removal tool to remove the anchor steel bar 4: S1. Assemble the entire device of Example 1; S2. Place the anti-slip pad on one end of the supporting arc rod 3 onto the concrete reinforcing rib; S3. Adjust the position of the lifting rod 1 so that the anti-slip pad on one end of the supporting arc rod 3 and the anti-slip pad on the clamping head 2 cooperate to clamp the anchor steel rod 4; S4. Lift the other end of the lifting rod 1 upwards. At this time, the anti-slip pad on one end of the supporting arc rod 3 serves as the fulcrum. Based on the lever principle, the anchor steel rod 4 is driven to move upwards.
[0029] It should be noted that there is no need to set a hinge or other rotating connection between one end of the supporting arc rod 3 and the anti-slip pad, because in actual application, the existing device can fully meet the requirements, and there is no need to make any complicated settings. At this time, the required force is minimal.
[0030] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A tool for assisting in the demolding of concrete pavements, characterized in that, include: The rising rod (1), the supporting arc rod (3), and the clamping head (2); One end of the clamping head (2) is fixed to one end of the rising rod (1); The clamping head (2) and the supporting arc rod (3) are hinged to form a cross-hinged mechanism so that the other end of the clamping head (2) and the other end of the supporting arc rod (3) can cooperate to clamp the anchor steel rod (4).
2. The auxiliary concrete pavement formwork removal tool according to claim 1, characterized in that, The straight-line distance from the hinge point of the clamping head (2) and the supporting arc rod (3) to the other end of the clamping head (2) is equal to the straight-line distance from the hinge point of the clamping head (2) and the supporting arc rod (3) to one end of the supporting arc rod (3).
3. The auxiliary concrete pavement formwork removal tool according to claim 1, characterized in that, Anti-slip pads are provided on the other end of the clamping head (2), one end of the supporting arc rod (3), and the other end of the supporting arc rod (3).
4. The auxiliary concrete pavement demolding tool according to claim 3, characterized in that, The clamping head (2) has a central through hole that is adapted to the range of motion of the supporting arc rod (3) when hinged; One end of the supporting arc rod (3) passes through the central through hole.
5. The auxiliary concrete pavement demolding tool according to claim 4, characterized in that, The clamping head (2) and the supporting arc rod (3) are hinged together, and the specific structure adopted is as follows: The hinge shaft passes through one side of the clamping head (2), the supporting arc rod (3) placed in the through hole, and the other side of the clamping head (2) in sequence, so that the clamping head (2) and the supporting arc rod (3) are hinged, and the hinge shaft is limited to the hinge shaft based on the limiting structure at both ends of the hinge shaft.
Citation Information
Patent Citations
Portable pulling-out device for ground anchor rod piece
CN219219000U