Foldable template system
By setting grid ribs and hinge structures on the side and bottom formwork of the beams, the problem of the formwork being unable to be bent up and down was solved, achieving effective storage and space utilization of the formwork.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-17
AI Technical Summary
Existing foldable formwork systems cannot achieve vertical bending of beam side formwork and beam bottom formwork, resulting in inconvenient formwork storage and ineffective utilization of the storage space in the elevated floor.
The beam side formwork is equipped with a grid-like first rib on the back, and the beam bottom formwork is also equipped with a grid-like first rib on the back. The corbel is installed under the side rib of the beam bottom formwork and connected to the beam side formwork through the first hinge. Combined with the hinge structure of the corner formwork, the beam side formwork and the beam bottom formwork are allowed to rotate up and down. The folding and rotation of the formwork are realized by using a third hinge.
It enables the side and bottom formwork of the beam to rotate vertically, facilitating formwork stacking, saving storage space, and making full use of the storage space in the elevated floor.
Smart Images

Figure CN224134212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction, and in particular to a foldable formwork system. Background Technology
[0002] For example, Chinese invention patent publication number CN 117904928 A discloses a concrete pouring formwork for building construction, including a foldable formwork and a support mechanism disposed on the foldable formwork. The foldable formwork includes a first formwork, a second formwork, a teardrop-shaped sliding rod, a folding shaft, and a third spring. The first formwork has a first connecting plate, and the first connecting plate has a first rotating seat. The first rotating seat has a first teardrop-shaped through hole. The teardrop-shaped sliding rod is slidably disposed within the first teardrop-shaped through hole. The bottom of the teardrop-shaped sliding rod has a third circular base plate. The third spring is sleeved on the teardrop-shaped sliding rod, and its two ends are respectively disposed on the third circular base plate and the first rotating seat. The second formwork has a second connecting plate. The formwork can be bent left and right, but cannot be bent up and down. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a foldable template system, which can bend the beam side template and the beam bottom template vertically, so that the beam bottom template can be stacked on the dismantled slab bottom template, making it convenient to store the template in the open space and effectively utilizing the storage space of the open space.
[0004] To address the aforementioned issues, a foldable template system is employed, comprising:
[0005] The beam side formwork has a first rib in the form of a grid on its back;
[0006] The bottom formwork of the beam has a first rib in the form of a grid on its back;
[0007] The corbels are installed at intervals on the side ribs of the beam bottom formwork and placed under the bottom ribs of the beam side formwork;
[0008] The first hinge, which is fixed to the outer end of the cow leg, includes a first fixed section located in the middle and a first rotating section located on both sides. The first fixed section and the second rotating section share a pin, wherein only the first fixed section is fixed to the outer end of the cow leg.
[0009] Rib plate, which is fixed between the first rotating section and the bottom rib of the beam side formwork.
[0010] With this structure, the beam side formwork can be leveled by the corbels; the beam side formwork can also rotate with the corbels through the first hinge, and when the bottom formwork of the slab is disassembled and placed in the elevated layer, the beam side formwork can be stacked on the bottom formwork of the slab.
[0011] As a further improvement of this utility model, a corner mold is installed on the upper side of the beam side mold, the corner mold comprising:
[0012] Beam corner formwork;
[0013] The bottom corner formwork of the slab is perpendicular to the side corner formwork of the beam, and its side is flush with the inner top of the side corner formwork of the beam, thus forming a right angle with the side corner formwork of the beam.
[0014] The hinge groove is located at the inside corner formed by the side corner formwork of the beam and the bottom corner formwork of the slab.
[0015] The second hinge, which is embedded in the hinge groove, includes a second rotating section and a second fixed section that share a common pin. The second fixed section is fixed to the side corner template of the beam, and the second rotating section is fixed to the bottom corner template of the plate.
[0016] With this structure, the beam side corner formwork is installed at the top of the beam side formwork, and the slab bottom corner formwork is installed at both ends of the slab bottom formwork, thus completing the installation of the corner formwork. During demolding, the limiting positions of the slab bottom formwork and the corner formwork are released, and the limiting position of the corner formwork itself is also released. The slab bottom formwork moves down, and the slab bottom corner formwork loosens, allowing the slab bottom corner formwork and the slab bottom formwork to separate. After the slab bottom corner formwork separates, space is created, the limiting positions of the corner formwork and the beam side formwork are released, allowing the corner formwork to move laterally for demolding, and then the beam side formwork is rotated for demolding. When using slipform construction, after the corner formwork is removed, it helps to store the beam formwork and the slab bottom formwork in a stacked manner, and then slide synchronously, which helps to save space for storing formwork and make full use of the elevated layer of the slipform system.
[0017] As a further improvement of this utility model, a second rib is fixedly connected to the beam side corner template and the slab bottom corner template, and the second rib is set at the end of the beam side corner template and the slab bottom corner template; a notch is opened at the intersection of the second rib, and the notch is connected to the hinge groove to allow the second hinge to rotate.
[0018] With this structure, the second rib helps to reinforce the end of the corner mold; the notch prevents obstruction of rotation and facilitates loosening of the corner mold; after the corner mold is disassembled, it can be rotated and retracted for easy storage.
[0019] As a further improvement of this utility model, a lug is provided at the end of the second rib, the lug is pin-connected to a support, a screw is installed on the support, and the two screws are connected by a straight threaded sleeve to form a diagonal brace.
[0020] With this structure, the screw and the straight threaded sleeve can easily form a diagonal brace.
[0021] As a further improvement of this utility model, the support has a U-shaped groove, which is adapted to the screw.
[0022] With this structure, the U-shaped groove facilitates assembly and welding.
[0023] As a further improvement of this utility model, a continuous steel back rib is provided between the second ribs at both ends, and lugs for connecting the diagonal braces are arranged at intervals along the steel back rib.
[0024] With this structure, the steel back ribs are beneficial for reinforcing the corner molds, and the lugs arranged on the steel back ribs help to form diagonal braces on the steel back ribs, thus strengthening the steel back ribs.
[0025] As a further improvement of this utility model, a third rib is provided between the steel back ribs of the beam side corner template and the steel back ribs of the slab bottom corner template, and a notch is also opened at the intersection of the third ribs.
[0026] With this structure, the third rib helps to vertically support the steel back rib, preventing the steel back rib from bending along the template surface.
[0027] As a further improvement of this utility model, the second rib, the third rib, and the steel back rib are made of galvanized square steel pipe.
[0028] As a further improvement of this utility model, the first rib, the second rib, and the steel back rib are provided with assembly holes.
[0029] This structure uses bolts and nuts as fasteners to create assembly holes and to connect the corner mold with the beam side mold and the bottom mold of the slab, as well as extend itself through splicing.
[0030] As a further improvement of this utility model, the beam side mold includes an upper side mold and a lower side mold, and a third hinge located between the two. The third hinge includes multiple hinge segments, including a first hinge support fixed to the bottom surface of the first rib at the lower part of the upper side mold and a second hinge support fixed to the top surface of the first rib at the upper part of the lower side mold. At least two concave hinge segments are provided between the first hinge support and the second hinge support. The uppermost hinge segment is hinged to the first hinge support, and the lowermost hinge segment is hinged to the second hinge support.
[0031] With this structure, the upper and lower molds can be rotated and folded via a third hinge. After the beam side mold is demolded, the upper mold rotates and folds onto the lower mold with the inner sides touching. This further saves storage space and reduces the required storage width. At least two concave hinge segments facilitate the unfolding and extension of the concave multi-segment hinge segments during subsequent rotation, making it easy to fold the upper mold inside and avoiding limitations imposed by the length of the hinge segments. The concave multi-segment hinge segments can store more length that can be extended.
[0032] As a further improvement of this utility model, the third hinges are arranged in pairs as a group, the first hinge support and the second hinge support have different lengths. On the same rib, the first hinge support of one third hinge is arranged adjacent to the second hinge support of another third hinge. The two concave hinge segments are arranged alternately, with more than half of one concave section located on the upper mold and more than half of the other concave section located on the lower mold. A common pin passes through the intersection of the two concave sections.
[0033] This structure allows the common pin to move in a circle around the hinge point of the longer hinge support, thus ensuring a stable circular trajectory for the unfolding of the concave multi-segment hinge joint. Due to the presence of the common pin, the common pin also moves in a circle while the multi-segment hinge joint unfolds, resulting in stable rotation between the upper and lower molds.
[0034] The hinge joint with a shared pin is obtuse-angled V-shaped.
[0035] With this structure, when the multi-segment hinge joints are fully extended, the obtuse-angled V-shaped hinge joints can cross at an angle when they encounter the right angle of the upper or lower mold, thus avoiding rigid collisions.
[0036] The beam side formwork and beam bottom formwork can be rotated up and down, allowing the beam side formwork to be stacked on the dismantled slab bottom formwork, making it convenient to store the formwork in the elevated floor and effectively utilizing the storage space of the elevated floor. Attached Figure Description
[0037] Figure 1 This is a schematic diagram of the structure of an embodiment.
[0038] Figure 2 This is a magnified diagram of a section of the cow's leg.
[0039] Figure 3 This is a schematic diagram of the corner mold structure.
[0040] Figure 4 This is a schematic diagram of the second hinge.
[0041] Figure 5 This is a schematic diagram showing the installation position of the foldable template in the slipform system.
[0042] Figure 6 This is a schematic diagram of the third hinge.
[0043] Figure 7 This is a schematic diagram of the folded beam side formwork.
[0044] Reference numerals: 1. Beam side formwork; 101. Upper side formwork; 102. Lower side formwork; 103. Third hinge; 1031. Hinge joint; 104. First hinge support; 105. Second hinge support; 106. Common pin.
[0045] 2. Beam bottom formwork; 3. Corbel;
[0046] 4. First hinge; 401. First fixed joint; 402. First rotating joint;
[0047] 5. Rib plate; 6. Corner mold; 601. Beam side corner mold; 602. Slab bottom corner mold; 603. Hinge groove; 604. Second hinge; 6041. Second rotating joint; 6042. Second fixed joint;
[0048] 7. First rib; 8. Second rib; 9. Notch; 10. Lug; 11. Support; 1101. U-groove; 12. Screw; 13. Straight threaded sleeve; 14. Steel back rib; 15. Third rib; 16. Assembly hole. Detailed Implementation
[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0050] 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., 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 utility model and for 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. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" 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.
[0051] Example 1
[0052] like Figures 1-5 As shown, a foldable template system includes:
[0053] Beam side formwork 1, with a first rib in the form of a grid on its back;
[0054] The bottom formwork 2 of the beam has a first rib in the form of a grid on its back;
[0055] Bracket 3 is installed at intervals on the side ribs of the bottom formwork 2 of the beam and placed under the bottom ribs of the side formwork 1 of the beam;
[0056] The first hinge 4 is fixed to the outer end of the cow leg 3. It includes a first fixed section 401 located in the middle and a first rotating section 402 located on both sides. The first fixed section 401 and the second rotating section 6041 share a pin. Only the first fixed section 401 is fixed to the outer end of the cow leg 3.
[0057] Rib 5 is fixed between the first rotating section 402 and the bottom rib of the beam side formwork 1.
[0058] With this structure, the beam side formwork 1 can be leveled by the corbel 3; the beam side formwork 1 can also rotate with the corbel 3 through the first hinge 4. When the bottom formwork of the slab is disassembled and placed in the elevated layer, the beam side formwork 1 can be stacked on the bottom formwork of the slab.
[0059] In this embodiment, a corner mold 6 is installed on the upper side of the beam side mold 1, and the corner mold 6 includes:
[0060] Beam side corner formwork 601;
[0061] The bottom corner formwork 602 is perpendicular to the side corner formwork 601 of the beam, and its side is flush with the inner top of the side corner formwork 601 of the beam, thus forming a right angle with the side corner formwork 601 of the beam.
[0062] Hinge groove 603 is provided at the inside corner formed by beam side corner formwork 601 and slab bottom corner formwork 602;
[0063] The second hinge 604 is embedded in the hinge groove 603 and includes a second rotating section 6041 and a second fixed section 6042 that share a common pin. The second fixed section 6042 is fixed to the beam side corner template 601, and the second rotating section 6041 is fixed to the plate bottom corner template 602.
[0064] With this structure, the beam side corner formwork 601 is installed at the upper end of the beam side formwork, and the slab bottom corner formwork 602 is installed at both ends of the slab bottom formwork, thus completing the installation of the corner formwork. During demolding, the limiting positions of the slab bottom corner formwork 602 and the slab bottom formwork are released, allowing the slab bottom corner formwork 602 and the slab bottom formwork to separate, and the slab bottom formwork can then move down to make room. Then the corner formwork is moved laterally and then separated from the beam side formwork 1. After the concrete reaches the design strength, the beam bottom formwork is finally removed. The above scheme helps to demold asynchronously and properly arrange the demolding priority. When using slipform construction, the corner formwork can also be moved longitudinally and removed. The subsequent slab bottom formwork can also be moved up and down, which helps to stack and store the beam formwork and slab bottom formwork, and then slide synchronously. This helps to save the space for storing the formwork and make full use of the overhead layer of the slipform system.
[0065] In this embodiment, a second rib 8 is fixedly connected to the beam side corner template 601 and the slab bottom corner template 602. The second rib 8 is located at the ends of the beam side corner template 601 and the slab bottom corner template 602. A notch 9 is opened at the intersection of the second rib 8, and the notch 9 is connected to the hinge groove 603 so that the second hinge 604 can rotate.
[0066] With this structure, the second rib 8 helps to strengthen the end of the corner mold; the notch prevents obstruction of rotation; it facilitates loosening the corner mold; and after the corner mold is disassembled, it can be rotated and retracted for easy storage.
[0067] In this embodiment, the second rib 8 is provided with a lug 10 at its end. The lug 10 is pin-connected to a support 11. A screw 12 is installed on the support 11. The two screws 12 are connected by a straight threaded sleeve 13 to form a diagonal brace.
[0068] With this structure, the screw 12 and the straight threaded sleeve 13 can easily form a diagonal brace.
[0069] In this embodiment, the support 11 has a U-shaped groove 1101, which is adapted to the screw 12.
[0070] With this structure, the U-shaped groove 1101 is easy to assemble and easy to weld.
[0071] In this embodiment, a continuous steel back rib 14 is provided between the second ribs 8 at both ends, and lugs 10 for connecting the diagonal braces are arranged at intervals along the steel back rib 14.
[0072] With this structure, the steel back rib 14 is conducive to reinforcing the corner mold, and the lugs 10 are arranged on the steel back rib 14, which helps to form diagonal braces on the steel back rib 14 and strengthen the steel back rib.
[0073] In this embodiment, a third rib 15 is provided between the steel back rib 14 of the beam side corner template 601 and the steel back rib 14 of the slab bottom corner template 602, and a notch 9 is also opened at the intersection of the third rib 15.
[0074] With this structure, the third rib 15 helps to vertically support the steel back rib 14, preventing the steel back rib 14 from bending along the template surface.
[0075] In this embodiment, the second rib 8, the third rib 15, and the steel back rib 14 are made of galvanized square steel pipe.
[0076] In this embodiment, the first rib 7, the second rib 8, and the steel back rib 14 are provided with assembly holes 16.
[0077] With this structure, bolts and nuts are used to fasten the assembly holes 16 to achieve the splicing of the corner mold with the beam side mold and the bottom mold of the slab, as well as the extension of itself through the splicing method.
[0078] In this embodiment, the beam side mold 1 includes an upper side mold 101 and a lower side mold 102, and a third hinge 103 located between the two. The third hinge 103 includes multiple hinge segments 1031, including a first hinge support 104 fixed to the bottom surface of the first rib 7 at the lower part of the upper side mold 101 and a second hinge support 105 fixed to the top surface of the first rib 7 at the upper part of the lower side mold 102. At least two concave hinge segments 1031 are provided between the first hinge support 104 and the second hinge support 105. The uppermost hinge segment 1031 is hinged to the first hinge support 104, and the lowermost hinge segment 1031 is hinged to the second hinge support 105.
[0079] With this structure, the upper mold 101 and the lower mold 102 can be rotated and folded through the third hinge 103. After the beam side mold 1 is demolded, the upper mold 101 rotates and folds onto the lower mold 102 with the inner sides of the molds touching. This further saves storage space and reduces the width required for storage. At least two concave hinge segments 1031 facilitate the unfolding and extension of the concave multi-segment hinge segments during subsequent rotation, making it easier for the upper mold 101 to fold inward and avoiding the limitation of the hinge segment length. The concave multi-segment hinge segments can store more length that can be extended.
[0080] In this embodiment, the third hinges 103 are arranged in pairs as a group. The first hinge support 104 and the second hinge support 105 have different lengths. On the same rib 7, the first hinge support 104 of one third hinge 103 is arranged adjacent to the second hinge support 105 of the other third hinge 103. The two concave hinge segments 1031 are arranged alternately. One concave part is located in the upper mold 101, and the other concave part is located in the lower mold 102. A common pin 106 passes through the intersection of the two concave parts.
[0081] With this structure, the common pin 106 moves in a circle with the hinge point of the longer hinge support as the center, so that the unfolding of the concave multi-segment hinge joint 1031 has a stable circular trajectory. Due to the presence of the common pin 106, the common pin 106 also moves in a circle while the multi-segment hinge joint 1031 unfolds, so that the upper mold 101 and the lower mold 102 rotate stably.
[0082] The hinge joint 1031 of the common pin 106 is obtuse-angled V-shaped.
[0083] With this structure, when the multi-segment hinge 1031 is fully unfolded, the obtuse-angled V-shaped hinge 1031 can cross at an oblique angle when it encounters the right angle of the upper mold 101 or the lower mold 102, thereby avoiding rigid collision.
[0084] This invention allows the beam side formwork and the beam bottom formwork to rotate up and down, so that the beam side formwork can be stacked on the dismantled slab bottom formwork, making it convenient to store the formwork in the elevated layer and effectively utilizing the storage space of the elevated layer.
[0085] exist Figure 5 First, separate the corner formwork from the bottom formwork of the slab. Then, use a lifting rod to bring the bottom formwork of the slab back to the elevated floor. After the corner formwork is moved laterally, the beam side formwork has room to rotate. The beam side formwork and the beam bottom formwork rotate, so that the beam bottom formwork is stacked on the dismantled bottom formwork of the slab. This makes it convenient to store the formwork in the elevated floor and effectively utilizes the storage space of the elevated floor.
[0086] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.
Claims
1. A foldable formwork system characterized by include: Beam side formwork (1), with a first rib (7) in grid form on its back side; The bottom formwork of the beam (2) has a first rib (7) in the form of a grid on its back. Brackets (3) are installed at intervals on the side ribs of the bottom formwork (2) of the beam and placed under the bottom ribs of the side formwork (1); The first hinge (4) is fixed to the outer end of the cow leg (3). It includes a first fixed section (401) located in the middle position and a first rotating section (402) located on both sides. The first fixed section (401) and the second rotating section (6041) share a pin. Only the first fixed section (401) is fixed to the outer end of the cow leg (3). Rib plate (5) is fixed between the first rotating section (402) and the bottom rib of the beam side formwork (1).
2. The foldable template system of claim 1, wherein An angle mold (6) is installed on the upper side of the beam side mold (1), the angle mold (6) comprising: Beam side corner formwork (601); The bottom corner formwork (602) is perpendicular to the side corner formwork (601) of the beam, and its side is flush with the inner top of the side corner formwork (601), thus forming a right angle with the side corner formwork (601); The hinge groove (603) is provided at the inside corner formed by the beam side corner formwork (601) and the slab bottom corner formwork (602); The second hinge (604), which is embedded in the hinge groove (603), includes a second rotating section (6041) and a second fixed section (6042) sharing a common pin. The second fixed section (6042) is fixed to the beam side corner template (601), and the second rotating section (6041) is fixed to the plate bottom corner template (602).
3. The foldable template system of claim 2, wherein The second rib (8) is fixedly connected to the beam side corner template (601) and the slab bottom corner template (602). The second rib (8) is set at the ends of the beam side corner template (601) and the slab bottom corner template (602). A notch (9) is opened at the intersection of the second rib (8). The notch (9) is connected to the hinge groove (603) so that the second hinge (604) can rotate.
4. The foldable template system of claim 3, wherein The second rib (8) is provided with a lug (10) at its end. The lug (10) is connected to a support (11) by a pin. A screw (12) is installed on the support (11). The two screws (12) are connected by a straight threaded sleeve (13) to form a diagonal brace.
5. The foldable template system of claim 4, wherein The support (11) has a U-shaped groove (1101) that is adapted to the screw (12).
6. The foldable template system of claim 4, wherein A continuous steel back rib (14) is provided between the second ribs (8) at both ends, and lugs (10) for connecting the diagonal braces are arranged at intervals along the steel back rib (14).
7. The foldable template system according to claim 6, characterized in that... A third rib (15) is provided between the steel back rib (14) of the beam side corner template (601) and the steel back rib (14) of the slab bottom corner template (602), and a notch (9) is also opened at the intersection of the third rib (15).
8. The foldable template system of claim 6, wherein Assembly holes (16) are provided on the first rib (7), the second rib (8) and the steel back rib (14).
9. The foldable template system of claim 1, wherein The beam side formwork (1) includes an upper side formwork (101) and a lower side formwork (102) and a third hinge (103) located between the two. The third hinge (103) includes multiple hinge segments (1031), including a first hinge support (104) fixed to the bottom surface of the first rib (7) at the lower part of the upper side formwork (101) and a second hinge support (105) fixed to the top surface of the first rib (7) at the upper part of the lower side formwork (102). At least two concave hinge segments (1031) are provided between the first hinge support (104) and the second hinge support (105). The uppermost hinge segment (1031) is hinged to the first hinge support (104), and the lowermost hinge segment (1031) is hinged to the second hinge support (105).
10. The foldable template system of claim 9, wherein The third hinges (103) are arranged in pairs as a group. The first hinge support (104) and the second hinge support (105) have different lengths. On the same rib (7), the first hinge support (104) of one third hinge (103) is arranged adjacent to the second hinge support (105) of the other third hinge (103). Two concave hinge segments (1031) are arranged alternately. One concave part is located in the upper mold (101); the other concave part is located in the lower mold (102). A common pin (106) passes through the intersection of the two concave parts.
Citation Information
Patent Citations
Concrete pouring formwork for building construction
CN117904928A