A pile foundation reinforcement cage lower end main reinforcement closing device

Abstract

The utility model relates to the technical field of building engineering pile foundation construction, and specifically discloses a pile foundation reinforcement cage lower end main reinforcement closing device, which comprises horizontal reinforcement arranged along the horizontal direction, vertical reinforcement fixedly arranged below the central position of the horizontal reinforcement, left support reinforcement and right support reinforcement respectively arranged below the two sides of the vertical reinforcement, one end of the left support reinforcement is fixedly connected with the left end of the horizontal reinforcement, one end of the right support reinforcement is fixedly connected with the position of three fourths of the length of the horizontal reinforcement, two sleeves are fixedly connected in parallel below the outer wall of the left support reinforcement, one end of the same main reinforcement of the reinforcement cage is simultaneously inserted into the sleeves, a level gauge is fixedly arranged at the central position of the upper surface of the horizontal reinforcement and used for indicating the bending angle in real time, and the device is characterized by accurate angle control, stable structure design and humanized operation, realizes efficient and accurate construction, reduces labor intensity, and improves the universality and construction quality.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction technology in building engineering, and specifically discloses a device for closing the main reinforcement bars at the lower end of a pile foundation steel cage. Background Technology

[0002] In pile foundation construction of building engineering, the finishing of the main reinforcement bars at the bottom of the steel cage is a crucial step in ensuring the stability and bearing capacity of the pile foundation structure. Traditional methods of finishing the main reinforcement bars rely heavily on manual labor, with workers using simple tools to bend the bars. This is not only labor-intensive and inefficient, but also makes it difficult to guarantee the consistency and accuracy of the bending angle. If the bending angle does not meet design requirements, it will directly affect the bond strength between the steel cage and the pile concrete, thereby reducing the overall structural performance and safety of the pile foundation. Furthermore, manual operation lacks precise positioning and measuring tools, leading to inconsistent construction quality and increasing rework and maintenance costs later on. With the increasing demands for quality and efficiency in pile foundation construction, developing a pile foundation steel cage bottom reinforcement bar finishing device that can precisely control the bending angle of the main reinforcement bars, is easy to operate, and is reusable has become an urgent problem to be solved in the industry. Utility Model Content

[0003] This utility model proposes a device for closing the main reinforcement bars at the lower end of a pile foundation steel cage. Through reasonable structural design, precise angle indication, comfortable operation, and standardized specifications, this device improves construction accuracy and efficiency, reduces labor intensity, enhances the stability and versatility of the device, effectively ensures the quality of pile foundation construction, and extends the service life of the device.

[0004] This utility model is implemented as follows: a device for closing the main reinforcement bars at the lower end of a pile foundation steel cage, comprising: Horizontal reinforcing bars are installed along the horizontal direction; The longitudinal reinforcing bars are vertically fixed below the center position of the transverse reinforcing bars; Left and right support bars are respectively located on both sides below the longitudinal steel bar. One end of the left support bar is fixedly connected to the left end of the transverse steel bar, and one end of the right support bar is fixedly connected to the transverse steel bar at three-quarters of its length. Two sleeves are welded in parallel and fixed to the lower part of the outer wall of the left support bar, for simultaneously inserting into one end of the same main bar of the steel cage; A level is fixed at the center of the upper surface of the horizontal reinforcing bar to indicate the bending angle in real time; An elastic handle sleeve is fitted onto the outer surface of the right end of the horizontal reinforcing bar to increase grip comfort and prevent slippage.

[0005] As a preferred embodiment of the pile foundation steel cage lower end main reinforcement closing device of this utility model, the material of the horizontal steel bar, the left support bar and the right support bar is HRB400 grade Φ22 steel bar, and the material of the longitudinal steel bar is HRB400 grade Φ16mm steel bar. The inner diameter of the sleeve is 25mm, and the distance between adjacent sleeves is 430mm.

[0006] As a preferred embodiment of the pile foundation steel cage lower end main reinforcement closing device of this utility model, the length of the horizontal steel bar is 1200mm, the height of the longitudinal steel bar is 60mm, the length of the left support bar is 603mm, and the length of the right support bar is 404mm. The distance between the right end of the right support bar and the right end of the horizontal bar is 200mm.

[0007] As a preferred embodiment of the pile foundation steel cage lower end main reinforcement closing device of this utility model, the level is a bubble level, its installation direction is consistent with the axis direction of the horizontal steel bar, and it is marked with scale lines corresponding to the design bending angle.

[0008] As a preferred embodiment of the pile foundation steel cage lower main reinforcement closing device of this utility model, the sleeve and the left support reinforcement are provided with a reinforcing rib plate at the weld.

[0009] As a preferred embodiment of the pile foundation steel cage lower end main reinforcement closing device of this utility model, the elastic handle sleeve is made of rubber and its surface is provided with anti-slip texture.

[0010] The beneficial effects of this utility model are: 1. The bending angle is indicated in real time by a level, allowing construction workers to precisely control the bending angle of the main reinforcement bars to meet design requirements, avoiding quality problems caused by angle deviations and significantly improving the quality of pile foundation construction. The device has a reasonable structural design and is easy to operate, enabling quick and accurate completion of the main reinforcement bar finishing work. Compared with traditional manual operation, it greatly shortens construction time and improves construction efficiency. The elastic handle sleeve increases grip comfort, reducing fatigue for construction workers during operation. At the same time, the device's structural design makes force application more reasonable, reducing the labor intensity of construction workers.

[0011] 2. The stable structure formed by the horizontal and vertical reinforcing bars, the left and right support bars, and the reinforced connection between the sleeve and the support bars enable the device to withstand greater bending forces, ensuring the stability and reliability of the device during use and extending its service life. Furthermore, the reasonable limitation of the material, size, and specifications of each component allows the device to be adapted to various specifications of main reinforcement bars, giving it strong versatility and making it suitable for different types of pile foundation construction projects. Attached Figure Description

[0012] 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. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 for Figure 1 A schematic diagram of the AA-direction structure.

[0015] Figure 3 This is a diagram showing the usage state of this utility model.

[0016] The markings in the diagram are: 1. Horizontal reinforcement; 2. Longitudinal reinforcement; 3. Left support reinforcement; 4. Right support reinforcement; 5. Sleeve; 6. Level; 7. Elastic handle sleeve; 8. Reinforcing rib plate. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0018] Please see Figure 1-3 A device for closing the main reinforcement bars at the lower end of a pile foundation steel cage, comprising: Horizontal reinforcing bar 1, installed along the horizontal direction; Longitudinal reinforcement 2 is vertically fixed below the center of transverse reinforcement 1; Left support bar 3 and right support bar 4 are respectively set on both sides below the longitudinal bar 2. One end of the left support bar 3 is fixedly connected to the left end of the transverse bar 1, and one end of the right support bar 4 is fixedly connected to the position of three-quarters of the length of the transverse bar 1. Two sleeves 5 are welded in parallel and fixed to the lower part of the outer wall of the left support bar 3, for simultaneous insertion into one end of the same main bar of the steel cage; The level 6 is fixed at the center of the upper surface of the horizontal reinforcing bar 1 and is used to indicate the bending angle in real time. The elastic handle sleeve 7 is fitted onto the outer surface of the right end of the horizontal steel bar 1 to increase grip comfort and anti-slip properties.

[0019] In this embodiment: the horizontal reinforcing bar 1 is arranged horizontally, serving as the main load-bearing structure of the entire device and providing an installation foundation for other components; the longitudinal reinforcing bar 2 is vertically fixed below the center of the horizontal reinforcing bar 1, enhancing the overall structural stability of the device, dispersing the stress generated during the application of force, preventing deformation of the horizontal reinforcing bar 1, and ensuring that the device can withstand large bending forces; the left support bar 3 and the right support bar 4 are respectively arranged below the sides of the longitudinal reinforcing bar 2, connecting with the horizontal reinforcing bar 1 to form a stable triangular support structure, further enhancing the structural strength and stability of the device; the sleeve 5 is welded parallel to and fixed below the outer wall of the left support bar 3, used for simultaneously inserting one of the same main reinforcing bars of the reinforcing cage. The end of the horizontal reinforcing bar serves to position and clamp the main reinforcement, ensuring that it does not slip or shift during bending and guaranteeing the accuracy of the bending angle. The level 6 is fixed at the center of the upper surface of the horizontal reinforcing bar 1, indicating the bending angle in real time. By observing the position of the bubble in the level 6, construction personnel can intuitively and accurately judge whether the bending angle of the main reinforcement meets the design requirements, achieving precise construction and avoiding quality problems caused by angle deviation. The elastic handle sleeve 7 is fitted on the outer surface of the right end of the horizontal reinforcing bar 1, increasing grip comfort and anti-slip properties, making it less tiring for construction personnel during long-term operation, while preventing hand slippage during operation, improving the safety and convenience of operation. The device works based on the lever principle and angle measurement principle. During operation, the construction worker holds the elastic handle sleeve 7 of the horizontal reinforcing bar 1 and applies force towards the center of the reinforcing cage, using the connection point between the left support bar 3 and the right support bar 4 and the horizontal reinforcing bar 1 as the fulcrum. The main reinforcing bar fixed by the sleeve 5 bends under the action of force. The level 6 monitors the tilt angle of the horizontal reinforcing bar 1 in real time. When the bubble of the level 6 is in the center, it indicates that the horizontal reinforcing bar 1 is in a horizontal state. At this time, the bending angle of the main reinforcing bar meets the design requirements, achieving precise bending.

[0020] As a technical optimization of this utility model, the horizontal reinforcing bar 1, the left supporting bar 3 and the right supporting bar 4 are made of HRB400 grade Φ22 steel bars, and the longitudinal reinforcing bar 2 is made of HRB400 grade Φ16mm steel bars. The inner diameter of sleeve 5 is 25mm, and the distance between adjacent sleeves 5 is 430mm.

[0021] In this embodiment: the device is guaranteed to have sufficient strength and adaptability; the selection of HRB400 grade steel bars ensures that the device can withstand large bending forces; the appropriate inner diameter and spacing of the sleeve 5 can adapt to the main reinforcement bars of common specifications, thereby improving the versatility and reliability of the device.

[0022] As a technical optimization of this utility model, the length of the horizontal reinforcing bar 1 is 1200mm, the height of the longitudinal reinforcing bar 2 is 60mm, the length of the left support bar 3 is 603mm, and the length of the right support bar 4 is 404mm. The distance between the right end of the right support bar 4 and the right end of the horizontal bar 1 is 200mm.

[0023] In this embodiment, the specific dimensions of each component make the structure of the device more precise and standardized, which facilitates production and manufacturing as well as actual construction applications, ensuring that the device can accurately achieve the main reinforcement closing function in actual use.

[0024] As a technical optimization of this utility model, the level 6 is a bubble level, which is installed in the same direction as the axis of the horizontal reinforcing bar 1, and is marked with scale lines corresponding to the design bending angle.

[0025] In this embodiment: the level 6 is guaranteed to accurately indicate the bending angle, enabling construction personnel to perform precise operations according to design requirements and improve construction quality.

[0026] As a technical optimization of this utility model, a reinforcing rib plate 8 is provided at the welding point between the sleeve 5 and the left support rib 3.

[0027] In this embodiment, a reinforcing rib plate 8 is provided at the weld between the sleeve 5 and the left support rib 3 to enhance the connection strength between the sleeve 5 and the support rib, prevent cracking or loosening at the weld during the bending of the main rib, and improve the stability and service life of the device.

[0028] As a technical optimization of this utility model, the elastic handle sleeve 7 is made of rubber and its surface is provided with anti-slip texture.

[0029] In this embodiment, the elastic handle sleeve 7 made of rubber improves the anti-slip performance and comfort of the handle sleeve, while ensuring that the handle sleeve can be firmly fixed on the horizontal steel bar 1, thus ensuring the safety and convenience of operation.

[0030] Working principle and usage process of this utility model: Step 1: Main reinforcement positioning: Insert one end of the same main reinforcement into two sleeves 5 at the same time, ensuring that the main reinforcement is completely inside the sleeve 5 and centered. Position and clamp the main reinforcement through the sleeves 5. Step 2: Applying force and bending: The construction worker holds the elastic handle sleeve 7 of the horizontal steel bar 1 and slowly applies force towards the center of the steel cage. During the application of force, pay attention to the position of the bubble in the level 6. Step 3 Angle Control: As force is applied, the main rib gradually bends, and the position of the bubble in the level 6 changes; when the bubble in the level 6 is centered, stop applying force, at which point the bending angle of the main rib reaches the design requirements. Inspection and acceptance: After the main reinforcement is bent, the bending angle is checked to ensure that it meets the design standards; if the angle does not meet the requirements, the force can be adjusted appropriately and the bending operation can be repeated until the design requirements are met. Following the steps described above, perform the finishing work on the other main bars at the bottom of the steel cage in sequence until the finishing work on the main bars at the bottom of the entire steel cage is completed.

[0031] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", 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.

[0032] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A device for closing the main reinforcement bars at the lower end of a pile foundation steel cage, characterized in that, include: Horizontal reinforcing bars (1) are installed along the horizontal direction; The longitudinal steel bar (2) is vertically fixed below the center position of the transverse steel bar (1); Left support bar (3) and right support bar (4) are respectively set on both sides below the longitudinal bar (2). One end of the left support bar (3) is fixedly connected to the left end of the transverse bar (1), and one end of the right support bar (4) is fixedly connected to the position at three-quarters of the length of the transverse bar (1). Two sleeves (5) are welded in parallel and fixed to the lower part of the outer wall of the left support bar (3) for simultaneous insertion into one end of the same main bar of the steel cage; A level (6) is fixed at the center of the upper surface of the horizontal reinforcing bar (1) and is used to indicate the bending angle in real time. An elastic handle sleeve (7) is fitted onto the outer surface of the right end of the horizontal steel bar (1) to increase grip comfort and anti-slip properties.

2. The device for closing the main reinforcement bar at the lower end of a pile foundation steel cage according to claim 1, characterized in that: The horizontal reinforcing bar (1), the left support bar (3) and the right support bar (4) are made of HRB400 grade Φ22 steel bars, and the longitudinal reinforcing bar (2) is made of HRB400 grade Φ16mm steel bars. The inner diameter of the sleeve (5) is 25mm, and the distance between adjacent sleeves (5) is 430mm.

3. The device for closing the main reinforcement bar at the lower end of a pile foundation steel cage according to claim 1, characterized in that: The length of the horizontal reinforcing bar (1) is 1200mm, the height of the longitudinal reinforcing bar (2) is 60mm, the length of the left support bar (3) is 603mm, and the length of the right support bar (4) is 404mm. The distance between the right end of the right support bar (4) and the right end of the horizontal bar (1) is 200mm.

4. The device for closing the main reinforcement bar at the lower end of a pile foundation steel cage according to claim 1, characterized in that: The level (6) is a bubble level, which is installed in the same direction as the axis of the horizontal reinforcing bar (1) and is marked with scale lines corresponding to the design bending angle.

5. The device for closing the main reinforcement bar at the lower end of a pile foundation steel cage according to claim 1, characterized in that: The sleeve (5) is provided with a reinforcing rib plate (8) at the welding point between it and the left support rib (3).

6. The device for closing the main reinforcement bar at the lower end of a pile foundation steel cage according to claim 1, characterized in that: The elastic handle sleeve (7) is made of rubber and has anti-slip texture on its surface.

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