Adjustable formwork support frame

By using a slider drive system and bevel gear mechanism in the adjustable formwork support frame, the problem of difficult screw rotation was solved, achieving smooth and safe height adjustment and improving construction efficiency.

WO2026016805A1PCT designated stage Publication Date: 2026-01-22CHINA HARBOUR ENGINEERING
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Patent Information

Application Number
PCT/CN2025/104823
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-07-16
Filing Date
2025-06-27
Publication Date
2026-01-22

AI Technical Summary

Technical Problem

Existing adjustable formwork support frames face difficulties in rotating the screw due to concrete and slag adhering to the threaded grooves at the construction site, affecting the smoothness and safety of height adjustment operations.

Method used

The system employs a slider drive system on the base, in which multiple sliders move linearly in the horizontal direction, driving the adjusting rod to move up and down relative to the support column. Combined with a bevel gear and threaded rod mechanism, it achieves smooth height adjustment and prevents mud from entering the chute through a retaining cloth.

Benefits of technology

This ensures smooth height adjustment operations, prevents mud and sludge from contaminating parts, improves ease of operation and safety, and reduces maintenance frequency.

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Abstract

Disclosed in the present invention is an adjustable formwork support frame, comprising a base, on which a plurality of sliding grooves are provided, a sliding block being slidably disposed in each sliding groove; a support column, which is vertically disposed on the base, an axis of the support column passing through the central point of the plurality of sliding grooves; an adjusting rod, which is coaxially and slidably sleeved on the support column in a vertical direction, a supporting plate being disposed on the top of the adjusting rod and abutting against a formwork; and a plurality of supporting rods, one sliding block being provided corresponding to one supporting rod, one end of each supporting rod being hinged to the corresponding sliding block, and the other end thereof being hinged to a side portion of the adjusting rod. The support frame provided in the present invention overcomes the technical defect in the prior art that a screw rotation method may encounter difficulty in screw rotation due to the adhesion of concrete sludge falling at a construction site to thread grooves, which further leads to the failure of normal height adjustment operations. The support frame has a simple structure and is easy to operate. A driving assembly is disposed on the base, which facilitates periodic maintenance and further ensures smoothness of the height adjustment operation of the support frame.
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Description

Adjustable template support frame Technical Field

[0001] This invention relates to the field of construction equipment technology. More specifically, this invention relates to an adjustable formwork support frame. Background Technology

[0002] In the current construction industry, formwork supports are key tools for ensuring the proper casting and shaping of concrete, and adjustable formwork supports are widely used because they can adapt to different construction needs and site conditions. However, there are still areas for improvement in these supports to enhance construction safety, efficiency, and economy.

[0003] Most adjustable formwork support frames on the market currently use screw lifting to adjust the height. For example, the invention patent with announcement number CN112412011B, an adjustable support frame for building formwork, uses screw lifting. Although this method is simple, in actual operation, concrete debris and other impurities falling from the construction site may adhere to the screw's thread groove, making the screw's rotation inflexible and increasing the difficulty of height adjustment. Summary of the Invention

[0004] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0005] To achieve these objectives and other advantages according to the present invention, an adjustable template support frame is provided, comprising:

[0006] The base has multiple circularly arranged grooves, and a slider is slidably installed in each groove along its length.

[0007] A support column is vertically mounted on the base, and the axis of the support column passes through the center point of multiple sliding grooves;

[0008] An adjusting rod is coaxially and slidably sleeved on the support column in the vertical direction, and the top of the adjusting rod is provided with a support plate that abuts against the template;

[0009] Multiple support rods are provided, with one support rod corresponding to each slider. One end of each support rod is hinged to the corresponding slider, and the other end is hinged to the side of the adjusting rod.

[0010] Preferably, the adjustable template support frame has elastic retaining cloth on both sides of each slider and at both ends of the corresponding sliding groove.

[0011] Preferably, in the adjustable template support frame, the adjusting rod is a rod structure with an open top and a hollow interior, and the upper part of the adjusting rod is provided with multiple pairs of through holes along the vertical direction;

[0012] The bottom of the support plate is vertically provided with a plug that can be coaxially inserted into the top of the adjusting rod. A pair of elastic pins are provided on one side of the plug. The elastic pins can extend through any pair of through holes to the outside of the adjusting rod. A button for adjusting the elastic pins is provided on the plug.

[0013] Preferably, in the adjustable template support frame, the support plate is a straight plate, an L-shaped plate, or an arc-shaped plate.

[0014] Preferably, in the adjustable template support frame, the base has a hollow structure, and each groove communicates with the interior of the base;

[0015] The support frame also includes:

[0016] A rotating shaft is vertically rotatable within the base, and the axis of the rotating shaft passes through the center point of multiple sliding grooves;

[0017] The first bevel gear is coaxially sleeved on the rotating shaft;

[0018] Multiple threaded rods are provided, with one threaded rod corresponding to each slide groove. Each threaded rod is parallel to the bottom of the corresponding slide groove, and one end of the threaded rod is rotatably connected to the inner wall of the base.

[0019] Multiple threaded sleeves, with one threaded sleeve rotately fitted on each threaded rod, and the top of each threaded sleeve is fixedly connected to the corresponding slider;

[0020] Multiple second bevel gears are provided, with one second bevel gear coaxially fitted on the other end of each threaded rod, and each second bevel gear meshing with the first bevel gear.

[0021] Preferably, in the adjustable template support frame, a sleeve is coaxially rotatably sleeved on the rotating shaft, the sleeve is connected to the inner wall of the base through a connecting rod, and the other end of each threaded rod is rotatably connected to the side wall of the sleeve.

[0022] Preferably, in the adjustable template support frame, the rotating shaft is driven by a motor mounted on the base.

[0023] Preferably, in the adjustable template support frame, a plurality of ball bearings are rolled and embedded on the inner wall of the adjusting rod.

[0024] The present invention has at least the following beneficial effects:

[0025] The adjustable template support frame provided by this invention is driven by multiple sliders mounted on the base moving linearly in the horizontal direction. The up-and-down movement of the adjustment rod relative to the support column is smooth, ensuring the smoothness of the height adjustment operation. This overcomes the technical defect of the prior art where the screw rotation method is difficult to operate due to concrete debris falling from the construction site adhering to the thread groove, thus preventing the normal operation of the screw adjustment. Furthermore, the support frame provided by this invention has a simple structure and is easy to operate. The drive component is located on the base, which facilitates regular maintenance and further ensures the smoothness of the support frame height adjustment operation.

[0026] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0027] Figure 1 is a structural schematic diagram of the adjustable template support frame described in one of the technical solutions of the present invention;

[0028] Figure 2 is a structural schematic diagram of the adjustable template support frame described in another technical solution of the present invention;

[0029] Figure 3 is a top view of the base described in this invention.

[0030] Explanation of reference numerals in the attached drawings: 1-base; 11-slide groove; 2-slider; 21-soil retaining cloth; 3-support column; 4-adjusting rod; 41-through hole; 5-insertion rod; 51-support plate; 6-support rod; 71-rotating shaft; 72-first bevel gear; 73-threaded rod; 74-threaded sleeve; 75-second bevel gear; 76-sleeve; 77-connecting rod. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0032] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0033] It should be noted that, unless otherwise specified, the experimental methods described in the following implementation plan are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified.

[0034] In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0035] As shown in Figures 1-3, the present invention provides an adjustable template support frame, which includes:

[0036] The base 1 has multiple sliding grooves 11 arranged in a circular array, and a slider 2 is slidably provided in each sliding groove 11 along its length direction;

[0037] The support column 3 is vertically mounted on the base 1, and the axis of the support column 3 passes through the center point of multiple sliding grooves 11.

[0038] Adjusting rod 4 is coaxially and slidably sleeved on the support column 3 in the vertical direction, and the top of the adjusting rod 4 is provided with a support plate 51 that abuts against the template;

[0039] Multiple support rods 6 are provided, with one support rod 6 corresponding to each slider 2. One end of each support rod 6 is hinged to the corresponding slider 2, and the other end is hinged to the side of the adjusting rod 4.

[0040] In the above technical solution, the present invention provides an adjustable template support frame, which includes a base 1 placed on the ground, a support column 3 vertically mounted on the base 1, an adjustment rod 4 coaxially and slidably mounted on the support column 3, a support plate 51 mounted on the top of the adjustment rod 4, and a plurality of support rods 6 that can connect each slider 2 to the adjustment rod 4; the upper surface of the base 1 is arranged with a plurality of strip-shaped grooves 11 at intervals along the circumferential direction, the plurality of grooves 11 are arranged in a ring array, and the center point of the ring array is located on the axis of the support column 3. A slider 2 is slidably mounted in each groove 11 along its length direction, and each slider 2 slides in the corresponding groove 11. The adjustment rod 4 can slide vertically relative to the support column 3. The support plate 51 abuts against the bottom of the template. The plurality of sliders 2 slide synchronously toward the support column 3 or synchronously toward the support column 3, thereby driving the plurality of support rods 6 to rotate synchronously, thereby driving the adjustment rod 4 to move up and down in the vertical direction relative to the support column 3.

[0041] The adjustable template support frame provided by this invention drives the adjustment rod 4 to move by driving multiple sliders 2 set on the base 1 to move linearly in the horizontal direction. The up and down movement of the adjustment rod 4 relative to the support column 3 is smooth, ensuring the smoothness of the height adjustment operation. This overcomes the technical defect of the prior art where the screw rotation method is difficult to operate due to concrete debris falling from the construction site adhering to the thread groove, thus preventing the normal operation of the screw adjustment. In addition, the support frame provided by this invention has a simple structure and is easy to operate. The drive component is set on the base 1, which is convenient for regular maintenance and further ensures the smoothness of the support frame height adjustment operation.

[0042] In another technical solution, the adjustable template support frame has elastic retaining cloth 21 on both sides of each slider 2 and at both ends of the corresponding slide groove 11. The width of the retaining cloth 21 is the same as the width of the slide groove 11. By setting an elastic retaining cloth 21 on both sides of the slider 2, the top of the slide groove 11 can be blocked during the sliding of the slider 2, preventing concrete debris or other impurities from falling into the slide groove 11 during construction and affecting the normal movement of the slider 2.

[0043] In another technical solution, the adjustable template support frame has an adjusting rod 4 that is open at the top and hollow inside, and the upper part of the adjusting rod 4 is provided with multiple pairs of through holes 41 along the vertical direction;

[0044] The bottom of the support plate 51 is vertically provided with a rod 5 that can be coaxially inserted into the top of the adjusting rod 4. A pair of elastic pins are provided on one side of the rod 5. The elastic pins can extend through any pair of through holes 41 to the outside of the adjusting rod 4. A button for adjusting the elastic pins is provided on the rod 5. In the above technical solution, the adjusting rod 4 and the support plate 51 are detachably connected. The rod 5 is coaxially inserted into the adjusting rod 4, and further extended through the through holes 41 to the outside of the adjusting rod 4 by the elastic pins, thus connecting the support plate 51 and the adjusting rod 4. Multiple pairs of through holes 41 are arranged vertically at intervals, allowing for preliminary adjustment of the height of the support plate 51. When disassembling the support plate 51 from the adjusting rod 4, manually pressing the button retracts the elastic pins. Without the restriction of the elastic pins, the rod 5 can be pulled upwards from inside the adjusting rod 4.

[0045] In another technical solution, the adjustable template support frame uses a support plate 51 that is a straight plate, an L-shaped plate, or an arc-shaped plate. The appropriate support plate 51 can be selected based on the shape of the template to be supported. For example, for a flat template, a straight plate support plate 51 is used, as shown in Figure 1. For the corner between two templates at a right angle, an L-shaped plate can be used. For a template with a certain curvature, an arc-shaped plate support plate 51 can be used. This allows the invention to be applied to support templates of various shapes, making it widely applicable and economically practical.

[0046] In another technical solution, the adjustable template support frame has a hollow structure inside the base 1, and each slide groove 11 is connected to the interior of the base 1;

[0047] The support frame also includes:

[0048] A rotating shaft 71 is vertically rotatable within the base 1, and the axis of the rotating shaft 71 passes through the center point of multiple sliding grooves 11.

[0049] The first bevel gear 72 is coaxially sleeved on the rotating shaft 71;

[0050] Multiple threaded rods 73 are provided, with one threaded rod 73 corresponding to each slide groove 11. Each threaded rod 73 is parallel to the slide groove 11 below it, and one end of the threaded rod 73 is rotatably connected to the inner wall of the base 1.

[0051] Multiple threaded sleeves 74, each threaded rod 73 is threaded and rotated to fit a threaded sleeve 74, and the top of each threaded sleeve 74 is fixedly connected to the corresponding slider 2;

[0052] Multiple second bevel gears 75, with one second bevel gear 75 coaxially sleeved on the other end of each threaded rod 73, and each second bevel gear 75 meshing with a first bevel gear 72.

[0053] In the above technical solution, the interior of the base 1 is set as a hollow structure, and each slide groove 11 is connected to the interior of the base 1. Specifically, the bottom of the slide groove 11 is provided with a vertically penetrating strip hole along its length direction, so that the slider 2 is connected to the threaded sleeve 74 and can slide together along the length direction of the slide groove 11. The present invention further discloses a power mechanism for the synchronous sliding of multiple sliders 2, which specifically includes a rotating shaft 71 vertically rotatably disposed inside the base 1. The rotating shaft 71 can rotate relative to the base 1 around its own axis. A first bevel gear 72 is fixed and coaxially sleeved on the rotating shaft 71. The rotation of the rotating shaft 71 drives the rotation of the first bevel gear 72. A threaded rod 73 is provided in conjunction with the slide groove 11. A threaded rod 73 is provided parallel to the bottom of each slide groove 11. One end of the threaded rod 73 (away from the rotating shaft 74) is positioned away from the rotating shaft 11. One end of shaft 71 is rotatably connected to the inner wall of base 1. A second bevel gear 75 is coaxially and fixedly sleeved on each threaded rod 73. Each second bevel gear 75 meshes with a first bevel gear 72, so that the first bevel gear 72 can drive multiple second bevel gears 75 to rotate synchronously, thereby driving multiple threaded rods 73 to rotate synchronously, and thus driving multiple sliders 2 to rotate synchronously. The multiple threaded rods 73, multiple threaded sleeves 74, and multiple second bevel gears 75 are configured such that the rotation of the first bevel gear 72 drives multiple threaded sleeves 74 to move synchronously toward or synchronously away from the rotating shaft 71, thereby driving the sliders 2 to move synchronously toward or synchronously away from the rotating shaft 71, thereby driving the multiple support rods 6 to retract or open, and finally realizing the vertical movement of the adjusting rod 4. The components of the power mechanism are located inside the base 1 in a closed space to avoid contamination of the components by concrete debris falling from the construction site, ensuring the normal operation of each component, and thus ensuring the smooth adjustment of the support frame.

[0054] In another technical solution, the adjustable template support frame has a sleeve 76 coaxially rotatably mounted on the rotating shaft 71. The sleeve 76 is connected to the inner wall of the base 1 via a connecting rod 77. The other end of each threaded rod 73 is rotatably connected to the side wall of the sleeve 76. The sleeve 76 is positioned above the first bevel gear 72 and does not interfere with it. The sleeve 76 is rotatably mounted on the rotating shaft 71 via a bearing. Under the limiting action of the connecting rod 77, the sleeve 76 does not rotate with the rotating shaft 71. The other end of the threaded rod 73 is rotatably connected to the side wall of the sleeve 76 via a bearing. The sleeve 76 provides a support point for the other end of each threaded rod 73, improving the stability of the horizontally positioned threaded rod 73.

[0055] In another technical solution, the adjustable template support frame has a rotating shaft 71 driven by a motor mounted on the base 1. Using a motor as the power source to drive the rotating shaft 71 improves the automation level of the equipment and facilitates operation. In practical applications, the motor is embedded in the bottom of the base 1 or located on the side of the base 1. Existing technology is used to link the motor's output shaft with the rotating shaft 71 via gear transmission. Mounting the motor on the base 1 facilitates maintenance.

[0056] In another technical solution, the adjustable template support frame has multiple ball bearings rolled and embedded on the inner wall of the adjusting rod 4. Each ball bearing can slide relative to the adjusting rod 4, and the inner wall of the adjusting rod 4 and the outer wall of the support column 3 are in sliding contact through these ball bearings, reducing the frictional resistance between the adjusting rod 4 and the support column 3 during the height adjustment process.

[0057] The number of devices and processing scale described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the invention will be readily apparent to those skilled in the art.

[0058] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An adjustable formwork support frame, characterised in that, The utility model relates to a template support frame, including: a base is equipped with a plurality of ring array arrangement's sliding groove, each sliding block is slid along the length direction in each sliding groove, a support column is vertically arranged on the base, and the axis of the support column passes through the center point of the plurality of sliding grooves, an adjusting rod is coaxially and slidably arranged on the support column in the vertical direction, and the top of the adjusting rod is provided with a support plate abutting against the template, a plurality of support rods are arranged, one sliding block corresponds to one support rod, one end of each support rod is hingedly connected with the corresponding sliding block, and the other end is hingedly connected with the side of the adjusting rod.

2. The adjustable formwork support frame of claim 1, wherein, Both sides of each sliding block are provided with elastic soil cloth respectively at both ends of the corresponding sliding groove.

3. The adjustable formwork support frame of claim 1, wherein, The adjusting rod is a rod body structure with an open top and a hollow interior, and a plurality of pairs of through holes are arranged on the upper part of the adjusting rod in the vertical direction, a plug rod is vertically arranged at the bottom of the support plate and can be coaxially inserted into the top of the adjusting rod, one side of the plug rod is provided with a pair of elastic pins, the elastic pins can extend to the outside of the adjusting rod through any one pair of through holes, and a button for adjusting the elastic pins is arranged on the plug rod.

4. The adjustable formwork support frame of claim 3, wherein, The support plate is a character-shaped plate body, an L-shaped plate body or an arc-shaped plate body.

5. The adjustable formwork support frame of claim 1, wherein, The interior of the base is a hollow structure, and each sliding groove is in communication with the interior of the base, The support frame further includes: a rotating shaft is vertically arranged in the base, and the axis of the rotating shaft passes through the center point of the plurality of sliding grooves, a first bevel gear is coaxially arranged on the rotating shaft, a plurality of threaded rods are arranged, one threaded rod corresponds to one sliding groove, each threaded rod is arranged in parallel below the corresponding sliding groove, and one end of the threaded rod is rotatably connected with the inner wall of the base, a plurality of threaded sleeves are arranged, one threaded sleeve is threadedly and rotatably arranged on each threaded rod, and the top of each threaded sleeve is fixedly connected with the corresponding sliding block, a plurality of second bevel gears are arranged, one second bevel gear is coaxially arranged on the other end of each threaded rod, and each second bevel gear is engaged with the first bevel gear.

6. An adjustable formwork support frame as claimed in claim 5 wherein, A sleeve is coaxially and rotatably arranged on the rotating shaft, the sleeve is connected with the inner wall of the base through a connecting rod, and the end of the other end of each threaded rod is rotatably connected with the side wall of the sleeve.

7. An adjustable formwork support frame as claimed in claim 6 wherein, The rotating shaft is driven by a motor arranged on the base.

8. The adjustable formwork support frame of claim 1, wherein, A plurality of rolling balls are arranged on the inner wall of the adjusting rod.

Citation Information

Patent Citations

  • Steel structure bridge reinforcing device

    CN113106881A

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    CN118653674A

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    CN212689579U

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