Adjustable construction clamp for upper return

Abstract

The utility model discloses an adjustable construction clamp for upper return beam, which comprises: a first reinforcing square tube arranged along a vertical direction; a second reinforcing square tube symmetrically arranged with the first reinforcing square tube; a full-thread screw rod, which passes through the upper part of the first reinforcing square tube and the second reinforcing square tube along a horizontal direction, and is fixed by fastening nuts at both ends; a threaded rod with holes, which is arranged below the full-thread screw rod and passes through the first reinforcing square tube and the second reinforcing square tube along a horizontal direction; a limiting sleeve, which is sleeved on the middle part of the threaded rod with holes; wherein, the middle part of the first reinforcing square tube and the second reinforcing square tube is symmetrically provided with a vertical corrugated long hole, and the threaded rod with holes can pass through the suitable hole area of the corrugated long hole to adjust the setting height of the threaded rod with holes. The clamp can quickly adapt to upper return beams of different heights, and can realize quick adjustment and assembly and disassembly, thereby significantly improving the construction quality and progress.

Description

Technical Field

[0001] This utility model relates to the technical field of construction tools for upward beams, specifically to an adjustable construction clamp for upward beams. Background Technology

[0002] As a common component in building structures, the construction quality of top beams directly affects the overall stability, waterproofing, moisture-proofing, and long-term durability of the building. Top beams are often used in conjunction with components such as retaining walls to support floor transitions or provide waterproofing. Formwork erection and reinforcement are critical procedures in top beam construction: the formwork needs to fit tightly against the concrete structure and withstand the lateral pressure of the concrete during pouring. Inadequate reinforcement can easily lead to formwork displacement, deformation, or bulging, resulting in concrete forming defects such as grout leakage and dimensional deviations, thus seriously affecting structural safety and functionality.

[0003] Currently, existing construction techniques largely rely on traditional reinforcement methods (such as timber and ordinary bolts), however, these techniques have the following drawbacks: First, insufficient reinforcement stability: existing clamps or support tools are difficult to effectively resist the lateral pressure during concrete pouring, which can easily lead to formwork displacement or bulging, thus affecting the verticality and flatness of the upper beam.

[0004] Secondly, the flexibility and adaptability are poor: most of the existing clamps are designed for fixed dimensions and cannot be quickly adjusted to adapt to the construction of upper beams or sills of different heights and widths, resulting in low turnover rate and large material loss.

[0005] Third, the installation and disassembly efficiency is low: the existing clamps rely on bolts to be tightened or welded multiple times, which is cumbersome and time-consuming, affecting the construction progress. Utility Model Content

[0006] The purpose of this utility model is to provide an adjustable construction clamp for the upward beam, so as to solve the technical problems mentioned in the background art, such as insufficient reinforcement stability, poor flexibility and adaptability, and low installation and disassembly efficiency of existing clamps.

[0007] To achieve the above objectives, this utility model provides an adjustable construction clamp for an upward-returning beam, comprising: a first reinforcing square tube, which is arranged vertically; a second reinforcing square tube, which is spaced apart from and symmetrically arranged with respect to the first reinforcing square tube; a threaded rod, which passes horizontally through the upper parts of the first and second reinforcing square tubes and is fixed at both ends with fastening nuts; a perforated rod, which is arranged below the threaded rod and passes horizontally through the first and second reinforcing square tubes; and a limiting sleeve, which is fitted onto the middle of the perforated rod; wherein, the middle parts of the first and second reinforcing square tubes are symmetrically provided with vertical corrugated elongated holes, and the perforated rod can be selected to pass through a suitable hole area of ​​the corrugated elongated holes to adjust the setting height of the perforated rod.

[0008] In a preferred embodiment, the left end of the perforated screw is fixed by a fastening nut, and the right end is fixed by a limiting pin.

[0009] In a preferred embodiment, a first screw hole and a second screw hole are respectively provided above and below the corrugated elongated hole. The first screw hole is used to pass through a full-thread screw, and the second screw hole is used to pass through a reinforcing bolt. The two reinforcing bolts pass through the lower part of the first reinforcing square tube and the second reinforcing square tube respectively, and a steel plate gasket is welded to the inner end of the reinforcing bolt. The other side of the steel plate gasket is attached to the template.

[0010] In a preferred embodiment, a limiting hole is provided at the right end of the screw with holes. The width of the limiting hole is the same as the thickness of the limiting pin. The limiting pin is a right triangle, and the right-angled side of the limiting pin is in contact with the outer wall of the second reinforced square tube.

[0011] In a preferred embodiment, the inner diameter of the limiting sleeve is larger than the outer diameter of the perforated screw, so that the limiting sleeve can slide on the perforated screw, and the length of the limiting sleeve is consistent with the width of the upper return beam.

[0012] In a preferred embodiment, a washer is fitted onto the perforated screw, with one side of the washer fitting against the inner side of the first and second reinforced square tubes, and the other side fitting against the template.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model features multi-point reinforcement. The first and second reinforcing square tubes form the main frame. Threaded bolts pass through the top of the reinforcing square tubes and are secured with nuts, forming a rigid support. The threaded bolts also pass through a corrugated elongated hole in the middle of the reinforcing square tubes and are locked in place with limiting sleeves and limiting pins, effectively dispersing lateral pressure. The limiting sleeves fit snugly against the formwork to prevent bulging. Lower reinforcing bolts and washers further enhance the overall integrity. This structural design transmits the lateral pressure during concrete pouring to the fixing points through the reinforcing square tubes and bolts. The limiting pins and nuts provide bidirectional constraint, ensuring the verticality and flatness of the formwork.

[0014] 2. The utility model of the perforated screw can be selected according to the height of the upper return beam to pass through the effective hole of the corrugated long hole, which can quickly adapt to upper return beams of different heights.

[0015] 3. The utility model uses fastening nuts and limiting pins for fixing, eliminating the need for welding. It allows for quick adjustment and installation / removal, significantly improving construction quality and progress. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram illustrating the construction application of this utility model; Figure 3 This is a schematic diagram of the reinforcement installation in the middle of the square tube according to this utility model; Figure 4 This is a schematic diagram of the bottom reinforcement of the square tube of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. First reinforced square tube; 2. Second reinforced square tube; 3. Threaded rod; 4. Perforated rod; 5. Limiting sleeve; 6. Limiting pin; 7. Fastening nut; 8. Reinforcing bolt; 9. Washer; 10. Concrete structure; 11. Formwork; 12. Corrugated elongated hole; 13. Steel plate gasket. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1: like Figures 1 to 4As shown, the adjustable upward beam construction clamp of this utility model includes: a first reinforcing square tube 1, a second reinforcing square tube 2, a threaded rod 3, a perforated rod 4, and a limiting sleeve 5. The first reinforcing square tube 1 is arranged vertically, and the second reinforcing square tube 2 is spaced apart from and symmetrically arranged with the first reinforcing square tube 1. The first and second reinforcing square tubes 1 and 2 form the main frame. The threaded rod 3 passes horizontally through the upper part of the first and second reinforcing square tubes 1 and 2, and is fixed at both ends with fastening nuts 7 to form a rigid support. The perforated rod 4 is located below the threaded rod 3 and passes horizontally through the first and second reinforcing square tubes 1 and 2. The limiting sleeve 5 is sleeved on the middle part of the perforated rod 4. The first reinforcing square tube 1 and the second reinforcing square tube 2 are symmetrically provided with vertical corrugated elongated holes 12 in their middle sections. The perforated screw 4 can be adjusted in height by passing through a suitable hole area of ​​the corrugated elongated hole 12 according to the height of the upper beam. The left end of the perforated screw 4 is fixed by a fastening nut 7, and the right end is fixed by a limiting pin 6. A washer 9 is fitted on the perforated screw 4, with one side of the washer 9 adhering to the inner side of the first reinforcing square tube 1 and the second reinforcing square tube 2, and the other side adhering to the template 11.

[0020] Furthermore, a first screw hole and a second screw hole are respectively provided above and below the corrugated elongated hole 12. The first screw hole is used to pass through the threaded screw 3, and the second screw hole is used to pass through the reinforcing bolt 8. The two reinforcing bolts 8 pass through the lower part of the first reinforcing square tube 1 and the second reinforcing square tube 2 respectively, and a steel plate gasket 13 is welded to the inner end of the reinforcing bolt 8. The other side of the steel plate gasket 13 is attached to the template 11.

[0021] Furthermore, a limiting hole is provided at the right end of the screw 4 with holes. The width of the limiting hole is the same as the thickness of the limiting pin 6. The limiting pin 6 is a right triangle, and the right-angled side of the limiting pin 6 is in contact with the outer wall of the second reinforced square tube 2.

[0022] Furthermore, the inner diameter of the limiting sleeve 5 is slightly larger than the outer diameter of the perforated screw 4, so that the limiting sleeve 5 can slide on the perforated screw 4, and the length of the limiting sleeve 5 is consistent with the width of the upper return beam.

[0023] Example 2: The construction steps of this utility model are described below: First, threaded rod 3, perforated rod 4, and reinforcing bolt 8 are passed through the first threaded hole, corrugated elongated hole 12, and second threaded hole pre-reserved on the first reinforcing square tube 1. The perforated rod 4 needs to be passed through a suitable hole area according to the height of the concrete structure 10. Then, the washer 9 is inserted and the fastening nut 7 is used to fix it to the first reinforcing square tube 1.

[0024] Place the first reinforcing square tube 1 tightly against the outside of the formwork 11 on the left side of the concrete structure 10.

[0025] Place the limiting sleeve 5 onto the perforated screw 4 and slide it to the left, close to the inside of the left template.

[0026] Place the formwork 11 on the right side of the concrete structure 10 so that it is close to the right end of the limiting sleeve 5, and put the gasket 9 on the right side of the threaded rod 4 with holes.

[0027] The reinforcing bolt 8 is passed through the second reinforcing square tube 2, through the threaded rod 3 and the perforated rod 4, and the second reinforcing square tube 2 is tightly attached to the outside of the template on the right side of the upper beam.

[0028] Then, tighten the threaded rod 3 and the second reinforced square tube 2 with the fastening nut 7.

[0029] Insert the limiting pin 6 into the limiting hole on the screw 4 with hole to fix the screw 4 with hole to the second reinforcing square tube 2, and use the fastening nut 7 to fix the reinforcing bolt 8 to the second reinforcing square tube 2.

[0030] Repeat the above steps, setting up a construction clamp for the upward beam every 1m.

[0031] The above method allows for flexible adjustment of the clamp size to match the specifications of the upper beam, thereby improving construction efficiency while meeting reinforcement requirements.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable construction clamp for upward-returning beams, characterized in that: include: The first reinforced square tube (1) is installed along the vertical direction; The second reinforcing square tube (2) is spaced apart from and symmetrically arranged with the first reinforcing square tube (1). The threaded screw (3) passes through the upper part of the first reinforced square tube (1) and the second reinforced square tube (2) in a horizontal direction, and is fixed at both ends with fastening nuts (7); A perforated screw (4) is provided below the threaded screw (3), and the perforated screw (4) passes through the first reinforced square tube (1) and the second reinforced square tube (2) in a horizontal direction. Limiting sleeve (5), the limiting sleeve (5) is sleeved on the middle part of the perforated screw (4); The first reinforced square tube (1) and the second reinforced square tube (2) are symmetrically provided with vertical corrugated elongated holes (12) in the middle. The perforated screw (4) can pass through a suitable hole area of ​​the corrugated elongated hole (12) to adjust the setting height of the perforated screw.

2. The adjustable construction clamp for the upward-returning beam according to claim 1, characterized in that: The left end of the perforated screw (4) is fixed by a fastening nut (7), and the right end is fixed by a limiting pin (6).

3. The adjustable construction clamp for the upward-returning beam according to claim 2, characterized in that: The corrugated elongated hole (12) is provided with a first screw hole and a second screw hole above and below, respectively. The first screw hole is used to pass through a full-thread screw (3), and the second screw hole is used to pass through a reinforcing bolt (8). The two reinforcing bolts (8) pass through the lower part of the first reinforcing square tube (1) and the second reinforcing square tube (2), respectively. A steel plate gasket (13) is welded to the inner end of the reinforcing bolt (8), and the other side of the steel plate gasket (13) is attached to the template (11).

4. The adjustable construction clamp for the upward-returning beam according to claim 3, characterized in that: The right end of the screw with holes (4) is provided with a limiting hole. The width of the limiting hole is the same as the thickness of the limiting pin (6). The limiting pin (6) is a right triangle. The right-angled side of the limiting pin (6) is attached to the outer wall of the second reinforced square tube (2).

5. The adjustable construction clamp for the upward-returning beam according to claim 4, characterized in that: The inner diameter of the limiting sleeve (5) is larger than the outer diameter of the perforated screw (4) so ​​that the limiting sleeve (5) can slide on the perforated screw (4), and the length of the limiting sleeve (5) is consistent with the width of the upper return beam.

6. The adjustable construction clamp for the upward-returning beam according to claim 1, characterized in that: A gasket (9) is fitted on the perforated screw (4). One side of the gasket (9) is attached to the inner side of the first reinforced square tube (1) and the second reinforced square tube (2), and the other side is attached to the template (11).

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