A hole pitch differential type template fine adjustment clamp

Abstract

The utility model discloses a hole distance differential type template fine adjustment clamp, including first clamping piece and second clamping piece. First clamping piece is composed of first side plate and multi -hole cover rail, and second clamping piece is composed of second side plate and multi -hole core rail, and both realize relative displacement adjustment through sliding connection. The cover rail adjusting side hole and the core rail adjusting side hole of equidistance distribution are respectively equipped on multi -hole cover rail and multi -hole core rail, and the hole distance difference of both is only 0.5mm, and realizes super millimeter level fine adjustment through differential principle. The cover rail adjusting bottom groove of bottom setting and the core rail adjusting bottom groove cooperation complete primary adjustment, and the side hole overlapping locking realizes fine adjustment. The first side plate and second side plate outside are equipped with triangle reinforcing plate to enhance structural stability, and are connected with the template through fixed hole. The utility model solves the problem of low precision, the cumbersome operation of traditional clamp adjustment, is applicable to the field such as building template, mould processing, has the characteristics such as high precision, high stability and low cost.

Description

Technical Field

[0001] This utility model relates to the field of formwork fixing technology in building construction, specifically a differential hole spacing formwork fine-tuning clamp, which is mainly used for rapid positioning and high-precision fine-tuning of beam, column and other formwork during concrete pouring, and is suitable for scenarios in building engineering where precise control of formwork spacing is required. Background Technology

[0002] In the field of formwork fixing in building construction, traditional clamps generally use eccentric formwork clamps, but this design has the following drawbacks: 1. Insufficient precision: Eccentric clamps rely on the mechanical lever principle for clamping, and the manufacturing tolerance of their eccentric wheel or cam directly affects the clamping precision, making it difficult to meet the positioning requirements of high-precision templates. When eccentrically clamped, the contact surface between the workpiece and the clamp is prone to micro-displacement due to uneven force, especially under vibration or impact conditions, which further amplifies the positioning error.

[0003] Under continuous vibration or temperature changes, the eccentric mechanism may fail to lock due to material fatigue or a decrease in the coefficient of friction, resulting in a sudden reduction in clamping force and causing the template to spring open.

[0004] Existing formwork clamps for building construction, such as the utility model with publication number CN218715135U, use a threaded rod to drive the sliding of the clamping arm. Although this can achieve relatively stable and high-precision lateral adjustment, it still has the following problems: 1. The operation is cumbersome, requiring repeated screw turning, resulting in low work efficiency; 2. Poor adaptability and durability; the threaded adjustment is easily contaminated by cement, causing it to jam and making it difficult to rotate and adjust; after mechanical disassembly, not only is it inefficient, but it may also damage the threaded structure, further affecting the adjustment accuracy and efficiency. Summary of the Invention

[0005] To address the aforementioned problems and considering the technological characteristics of building formwork, this utility model proposes a differential hole spacing formwork fine-tuning fixture, the detailed technical solution of which is as follows: A differential hole spacing template fine-tuning fixture includes a first clamping member and a second clamping member; the first clamping member includes a first side plate and a multi-hole sleeve rail; the second clamping member includes a second side plate and a multi-hole core rail, with the first side plate and the second side plate disposed opposite to each other; the multi-hole sleeve rail and the multi-hole core rail are slidably connected; the first side plate and the multi-hole sleeve rail are fixedly connected, with an included angle between 60 degrees and 90 degrees, preferably 90 degrees; the second side plate and the multi-hole core rail are fixedly connected, with an included angle between 60 degrees and 90 degrees, preferably 90 degrees; wherein, the multi-hole sleeve rail is provided with four or more edges... The sliding adjustment side holes are equidistantly distributed along the sliding direction, preferably 10-30 in number; the multi-hole core rail is provided with more than 4 core rail adjustment side holes equidistantly distributed along the sliding direction, preferably 10-30 in number; the sliding adjustment side holes and the core rail adjustment side holes are aligned along the sliding direction; the hole spacing of the sliding adjustment side holes is not equal to the hole spacing of the core rail adjustment side holes, preferably the difference is between 0.1mm and 1mm; during the sliding process of the multi-hole sliding rail and the multi-hole core rail, there are multiple possibilities for overlap between the sliding adjustment side holes and the core rail adjustment side holes.

[0006] The cross-section of the porous core rail is C-shaped; the cross-section of the porous sleeve rail is U-shaped and its sidewalls extend inward; the porous core rail is partially enclosed within the porous sleeve rail; the core rail adjustment side holes are symmetrically arranged on the two sidewalls of the porous core rail; and the sleeve rail adjustment side holes are symmetrically arranged on the two sidewalls of the porous sleeve rail.

[0007] The bottom of the multi-hole sleeve rail is also provided with a straight-line sleeve rail adjustment groove; the sleeve rail adjustment groove is provided in multiple segments and is equally spaced on the same straight line. The bottom of the multi-hole core rail is also provided with a core rail adjustment groove; the core rail adjustment groove is provided with multiple segments and is equally spaced on the same straight line; the sleeve rail adjustment groove is aligned with the core rail adjustment groove, and during the sliding process of the multi-hole sleeve rail and the multi-hole core rail, the sleeve rail adjustment groove and the core rail adjustment groove may partially overlap.

[0008] The distance between the beginning and end of the adjusting groove of the sleeve rail is not equal to the distance between the beginning and end of the adjusting groove of the core rail.

[0009] The first side plate is perpendicular to the perforated sleeve rail; the second side plate is perpendicular to the perforated core rail.

[0010] The first side plate has a first reinforcing plate on its outer side. The first reinforcing plate is triangular in shape, perpendicular to the first side plate, and fixedly connected between the multi-hole rail and the first side plate. The second side plate has a second reinforcing plate on its outer side. The second reinforcing plate is triangular in shape, perpendicular to the second side plate, and fixedly connected between the multi-hole core rail and the second side plate.

[0011] The first side plate is provided with a first fixing hole that penetrates the first side plate; the second side plate is provided with a second fixing hole that penetrates the second side plate.

[0012] The beneficial effects of this utility model can be summarized as follows: 1. High-precision fine-tuning capability: Through the differential hole spacing design between the sleeve rail and the core rail, ultra-millimeter-level fine-tuning is achieved, which solves the problem of insufficient precision caused by mechanical clearance or processing error in traditional threaded or eccentric clamps. It is especially suitable for high-precision demand scenarios such as building template and mold processing.

[0013] With its anti-pollution and easy-to-maintain design, the open sliding structure allows cement residue to be shaken off with a light tap, avoiding the drawbacks of the threaded adjustment mechanism being stuck due to hardened cement and requiring chemical cleaning or violent disassembly. This significantly reduces maintenance costs and improves construction efficiency.

[0014] The structure is more stable. The triangular reinforcing plate and semi-enclosed guide rail design improve the resistance to deformation, ensure uniform distribution of clamping force, prevent the formwork from deforming due to lateral pressure during concrete pouring, and greatly improve reliability.

[0015] The device is easy to operate, integrating a dual adjustment mechanism of initial adjustment of the bottom groove and fine adjustment of the side hole. This simplifies the multi-step operation process of traditional fixtures, requiring only sliding positioning and pin locking to complete the adjustment, shortening working time and reducing the technical requirements for operators.

[0016] Economical, with no precision threads or electrical control components, low manufacturing cost and long service life, meeting the economic needs of building construction.

[0017] This invention comprehensively improves the precision, reliability, and construction efficiency of the fixture through differential fine-tuning, anti-pollution structure, and efficient operation design, resulting in significant technological advancements and economic benefits. Attached Figure Description

[0018] Figure 1 A schematic diagram illustrating the usage state of a differential hole spacing template fine-tuning fixture provided by this utility model.

[0019] Figure 2 A three-dimensional structural diagram of a hole spacing differential template fine-tuning fixture provided by this utility model.

[0020] Figure 3 A three-dimensional structural diagram of the first clamping component in a differential hole spacing template fine-tuning fixture provided by this utility model.

[0021] Figure 4 A three-dimensional structural diagram of the second clamping component in a differential hole spacing template fine-tuning fixture provided by this utility model. Detailed Implementation

[0022] Example 1: A differential hole spacing template fine-tuning fixture includes a first clamping member 1 and a second clamping member 2. The first clamping member 1 includes a first side plate 11 and a multi-hole sleeve rail 12. The second clamping member 2 includes a second side plate 21 and a multi-hole core rail 22. The first side plate 11 and the second side plate 21 are arranged parallel to each other and opposite to each other. The multi-hole sleeve rail 12 is slidably connected to the multi-hole core rail 22. The first side plate 11 and the multi-hole sleeve rail 12 are fixedly connected perpendicularly to each other. The second side plate 21 and the multi-hole core rail 22 are fixedly connected perpendicularly to each other. The cross-section of the multi-hole core rail 22 is C-shaped. The cross-section of the multi-hole sleeve rail 12 is U-shaped and its sidewalls extend inward. The multi-hole core rail 22 is partially enclosed within the multi-hole sleeve rail 12. Two rows of core rail adjustment side holes 25 are symmetrically arranged on the two sidewalls of the multi-hole core rail 22. Two rows of sleeve rail adjustment side holes 15 are symmetrically arranged on the two sidewalls of the multi-hole sleeve rail 12.

[0023] The multi-hole rail 12 is 300mm long, and each of its two side walls has 28 rail adjustment side holes 15 equidistantly distributed along the sliding direction, with a hole spacing of 10.5mm. The multi-hole core rail 22 is 300mm long, and each of its two side walls has 30 core rail adjustment side holes 25 equidistantly distributed along the sliding direction, with a hole spacing of 10mm. The rail adjustment side holes 15 and the core rail adjustment side holes 25 are aligned along the sliding direction. The hole projections of the rail adjustment side holes 15 and the core rail adjustment side holes 25 are distributed on the same straight line.

[0024] The difference between the hole spacing of the sleeve rail adjustment side hole 15 and the hole spacing of the core rail adjustment side hole 25 is 0.5mm. During the sliding process of the multi-hole sleeve rail 12 and the multi-hole core rail 22, in the commonly used area where the distance between the first side plate 11 and the second side plate 21 is 300mm-500mm, there is a possibility of 1 to 2 overlaps between the sleeve rail adjustment side hole 15 and the core rail adjustment side hole 25 every 0.5mm between the two side plates. By using an iron nail to pass through the overlapping sleeve rail adjustment side hole 15 and the core rail adjustment side hole 25 to lock the first side plate 11 and the second side plate 21, micro-adjustment at the sub-millimeter level can be achieved.

[0025] The multi-hole rail 12 is further provided with a straight rail adjustment groove 14 at its bottom; the rail adjustment groove 14 has 10 segments equidistantly arranged on the same straight line, with a center-to-center spacing of 29mm, a groove length of 20mm per segment, and a head-to-tail spacing of 9mm; the multi-hole core rail 22 is further provided with a core rail adjustment groove 24 at its bottom; the core rail adjustment groove 24 has 9 segments equidistantly arranged on the same straight line, with a center-to-center spacing of 32mm, and a groove length of 20mm per segment. The core rail adjusting groove 24 has a head-to-tail distance of 11mm. The sleeve rail adjusting groove 14 is aligned with the core rail adjusting groove 24. During the sliding process of the multi-hole sleeve rail 12 and the multi-hole core rail 22, the sleeve rail adjusting groove 14 and the core rail adjusting groove 24 partially overlap multiple times, which can achieve the initial adjustment of the distance between the first side plate 11 and the second side plate 21. The difference between the head-to-tail distance of the core rail adjusting groove 24 and the head-to-tail distance of the sleeve rail adjusting groove 14 is 2mm, and the initial adjustment accuracy can reach 2mm.

[0026] The first side plate 11 is provided with a first reinforcing plate 13 on its outer side. The first reinforcing plate 13 is triangular in shape, perpendicular to the first side plate 11, and fixedly connected between the perforated core rail 12 and the first side plate 11. The second side plate 21 is provided with a second reinforcing plate 23 on its outer side. The second reinforcing plate 23 is triangular in shape, perpendicular to the second side plate 21, and fixedly connected between the perforated core rail 22 and the second side plate 21. The arrangement of the first reinforcing plate 13 and the second reinforcing plate 23 enhances the stability between the first side plate 11 and the second side plate 21, making it less prone to deformation when the first side plate 11 and the second side plate 21 are clamped.

[0027] The first side plate 11 is provided with two first fixing holes 16 penetrating the first side plate 11; the second side plate 21 is provided with two second fixing holes 26 penetrating the second side plate 21. Screws or nails can pass through the first fixing holes 16 or the second fixing holes 26 to fix the first clamp 1 and the second clamp 2 to the template respectively.

[0028] The usage process of Example 1 is as follows: First, select a clamp of appropriate size, such as the one in Example 1, which is suitable for beam or column formwork with a width of 330mm to 600mm; thread the first clamp 1 and the second clamp 2 together and hold them on the outside of the formwork, and use screws or nails to fix the first clamp 1 and the second clamp 2 on the outside of the formwork through the first fixing hole 16 and the second fixing hole 26 respectively.

[0029] Then, with the direction of the sliding rail adjustment groove 14 near the first side plate 11 as the head and the opposite direction as the tail; with the direction of the core rail adjustment groove 24 near the second side plate 21 as the head and the opposite direction as the tail; find the position where the tails of the sliding rail adjustment groove 14 and the core rail adjustment groove 24 overlap, and nail or screw onto the template through this position for initial adjustment.

[0030] Finally, gently tap the first side plate 11 and the second side plate 21 on both sides towards the inside of the template to make the template fit together. Find the overlapping hole where the sleeve rail adjustment side hole 15 and the core rail adjustment side hole 25 are closest to completely overlapping. Insert the iron nail into the overlapping hole and pass it through the sleeve rail adjustment side hole 15 and the core rail adjustment side hole 25 on both sides. The clamp is now fixed.

[0031] Example 2 Example 2 is a variation of Example 1, wherein the perforated rail 12 is 330mm long, and each of the two side walls of the perforated rail 12 is provided with 29 rail adjustment side holes 15 equidistantly distributed along the sliding direction, with a hole spacing of 10.35mm; all other aspects are the same as in Example 1.

[0032] In Embodiment 2, the difference between the hole spacing of the sleeve adjustment side hole 15 and the hole spacing of the core rail adjustment side hole 25 is 0.35mm. During the sliding process of the multi-hole sleeve rail 12 and the multi-hole core rail 22, in the commonly used area where the distance between the first side plate 11 and the second side plate 21 is 330mm-500mm, there is an overlapping hole between the sleeve adjustment side hole 15 and the core rail adjustment side hole 25 every 0.35mm on both side plates, and the fine adjustment accuracy is greater than that of Embodiment 1.

Claims

1. A differential hole spacing template fine-tuning fixture, comprising a first clamping member (1) and a second clamping member (2); the first clamping member (1) comprises a first side plate (11) and a multi-hole sleeve rail (12); the second clamping member (2) comprises a second side plate (21) and a multi-hole core rail (22), wherein the first side plate (11) and the second side plate (21) are disposed opposite to each other; the multi-hole sleeve rail (12) and the multi-hole core rail (22) are slidably connected; the first side plate (11) and the multi-hole sleeve rail (12) are fixedly connected, and their included angle is between 60 degrees and 90 degrees; the second side plate (21) and the multi-hole core rail (22) are fixedly connected, and their included angle is between 60 degrees and 90 degrees; characterized in that, The multi-hole sleeve rail (12) is provided with four or more sleeve rail adjustment side holes (15) equidistantly distributed along the sliding direction; the multi-hole core rail (22) is provided with four or more core rail adjustment side holes (25) equidistantly distributed along the sliding direction; the sleeve rail adjustment side holes (15) and the core rail adjustment side holes (25) are aligned along the sliding direction; the hole spacing of the sleeve rail adjustment side holes (15) is not equal to the hole spacing of the core rail adjustment side holes (25); during the sliding process of the multi-hole sleeve rail (12) and the multi-hole core rail (22), there are multiple possibilities for the overlap between the sleeve rail adjustment side holes (15) and the core rail adjustment side holes (25).

2. The differential hole spacing template fine-tuning fixture according to claim 1, characterized in that, The cross-section of the porous core rail (22) is "C" shaped; the cross-section of the porous sleeve rail (12) is "U" shaped and its sidewalls extend inward. The porous core rail (22) is partially enclosed in the porous sleeve rail (12). The core rail adjustment side holes (25) are symmetrically arranged on the two sidewalls of the porous core rail (22). The sleeve rail adjustment side holes (15) are symmetrically arranged on the two sidewalls of the porous sleeve rail (12).

3. The differential hole spacing template fine-tuning fixture according to claim 2, characterized in that, The bottom of the multi-hole rail (12) is also provided with a straight rail adjustment groove (14); the rail adjustment groove (14) is provided with multiple segments and is equally spaced on the same straight line. The bottom of the porous core rail (22) is also provided with a core rail adjustment groove (24); the core rail adjustment groove (24) is provided with multiple segments and is equally spaced on the same straight line; the sleeve rail adjustment groove (14) is aligned with the core rail adjustment groove (24), and during the sliding process of the porous sleeve rail (12) and the porous core rail (22), there may be partial overlap between the sleeve rail adjustment groove (14) and the core rail adjustment groove (24).

4. The differential hole spacing template fine-tuning fixture according to claim 3, characterized in that, The distance between the beginning and end of the adjusting groove (14) is not equal to the distance between the beginning and end of the adjusting groove (24).

5. A differential hole spacing template fine-tuning fixture according to claim 1, characterized in that, The first side plate (11) is perpendicular to the perforated sleeve rail (12); the second side plate (21) is perpendicular to the perforated core rail (22).

6. A differential hole spacing template fine-tuning fixture according to claim 1, characterized in that, A first reinforcing plate (13) is provided on the outer side of the first side plate (11). The first reinforcing plate (13) is triangular in shape, perpendicular to the first side plate (11), and fixedly connected between the multi-hole sleeve rail (12) and the first side plate (11). A second reinforcing plate (23) is provided on the outer side of the second side plate (21). The second reinforcing plate (23) is triangular in shape, perpendicular to the second side plate (21), and fixedly connected between the multi-hole core rail (22) and the second side plate (21).

7. A differential hole spacing template fine-tuning fixture according to claim 1, characterized in that, The first side plate (11) is also provided with a first fixing hole (16) penetrating the first side plate (11); the second side plate (21) is also provided with a second fixing hole (26) penetrating the second side plate (21).

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