A clamping strip device and clamping strip system for formwork

Abstract

The utility model relates to the square column construction field especially relates to a clamping strip device and clamping strip system for frame column formwork. First return bend section and first strip board enclose first limiting space, and first strip board is provided with at least two columns of first strip hole, and adjacent column first strip hole is staggered arrangement, U type seat includes first wall and second wall, and first wall and second wall have second limiting space between, and the side of second wall away from first wall is provided with at least two boss of adapting with all first strip hole, and all boss is matched with at least two columns of first strip hole, U type seat and first return bend section all are located the same side of first strip board, and the opening of first return bend section and the opening direction of U type seat are same. The clamping strip device for frame column formwork of the application avoids the problem that the clamping strip on the adjacent square column is easy to interfere with each other in the prior art, and at the same time, the length of the clamping strip does not need to be cut short, which ensures that the length meets the use of square columns at other positions of the construction site, and the universality is better.

Description

Technical Field

[0001] This utility model relates to the field of square column construction, and in particular to a clamping strip device and clamping strip system for frame column formwork. Background Technology

[0002] When constructing roads, bridges, or some buildings, it is necessary to construct concrete square columns. Formwork must be installed around the reinforcing bars of the square columns, and then steel pipes or channel steel are installed around the formwork as support beams. The support beams are reinforced by drilling holes with screws or by binding wires. During the reinforcement process, the screws need to be constantly turned or the wires need to be constantly bound, which is too time-consuming and labor-intensive.

[0003] To solve the above problems, those skilled in the art have developed clamping strips. For example, patent (publication number: CN215212343U) discloses a clamping strip for frame column formwork in building construction, which includes a protective plate, an insert plate, and a clamp. The protective plate includes a first straight plate segment and a bend segment at one end of the first straight plate segment. The first straight plate segment and the bend segment form a hook-shaped area through which the first straight plate segment passes. Several strip-shaped through holes are provided along the length direction of the first straight plate segment on the side away from the bend segment. The opening direction of the strip-shaped through holes is parallel to the length direction of the first straight plate segment. The insert plate is a wedge-shaped plate. Several parallel positioning grooves are symmetrically provided on the two sides of the wedge-shaped plate. The positioning grooves are parallel to the length direction of the first straight plate segment. The wedge-shaped plate is detachably inserted into the strip-shaped through holes of the first straight plate segment of the protective plate. The clamp has two clamping plates and clamp heads respectively provided on the two clamping plates that cooperate with the positioning grooves on the two sides of the wedge-shaped plate. The clamp heads are detachably embedded in the positioning grooves on the side of the wedge-shaped plate that passes through the strip-shaped through holes. This invention has the advantages of saving time and labor.

[0004] However, when multiple square columns are required for construction in bridges or buildings, the clamps used on adjacent square columns are prone to interference due to their close proximity. If the length of the clamps is shortened, it cannot guarantee the use of square columns in other locations on the construction site, resulting in poor versatility. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, which is that when multiple square columns are required for construction in bridges or buildings, the clamping strips used on adjacent square columns are prone to interference due to their close proximity. If the length of the clamping strips is shortened, it cannot guarantee the use of square columns in other locations on the construction site, resulting in poor versatility. This invention provides a clamping strip device and clamping strip system for frame column formwork.

[0006] In a first aspect, the present invention provides a clamping strip device for frame column formwork, comprising: The first guard strip includes a first strip plate and a first bend section connected to one end of the first strip plate. The first bend section and the first strip plate form a first limiting space. The first strip plate is provided with at least two rows of first holes. All the first holes in each row are spaced apart along the length direction of the first strip plate, and the first holes in adjacent rows are staggered. The U-shaped seat includes a first wall and a second wall arranged opposite to each other. One end of the first wall and the second wall are connected to each other, and the other end is cantilevered. There is a second limiting space between the first wall and the second wall. The second wall has at least two protrusions on the side away from the first wall that are adapted to all the first holes. All the protrusions are engaged with at least two rows of the first holes. The U-shaped seat and the first bend section are both located on the same side of the first strip, and the opening of the first bend section has the same direction as the opening of the U-shaped seat.

[0007] The clamping strip device for frame column formwork described in this application includes a first guard strip and a U-shaped seat. By setting the U-shaped seat on the first guard strip, the first guard strip can simultaneously have a first limiting space and a second limiting space, which can meet the purpose of being used on a single square column or on at least two adjacent square columns. Moreover, by setting the U-shaped seat, the problem of easy interference between clamping strips on adjacent square columns in the prior art is avoided. At the same time, it is not necessary to shorten the length of the clamping strip, and its length can be guaranteed to meet the use of square columns in other locations on the construction site, thus improving its versatility.

[0008] Preferably, the end of the boss is located inside the corresponding first hole or is flush with the bottom of the first hole.

[0009] Preferably, it further includes a locking piece, which is connected to at least two of the bosses, and the locking piece is located on the side of the first plate away from the U-shaped seat.

[0010] By setting a locking plate, the reliability of the connection between the first plate and the U-shaped seat is ensured.

[0011] Preferably, the locking plate is provided with a through hole, and the boss is provided with a threaded blind hole corresponding to the through hole; it also includes a bolt, which passes through the through hole and is threadedly connected to the threaded blind hole.

[0012] Preferably, the first plate is an H-shaped member, and the first hole is located on the web of the H-shaped member. The H-shaped member can further increase the vertical bending resistance of the first plate, thereby allowing the first plate to be made longer and accommodating the construction of more square columns.

[0013] Preferably, it also includes a reinforcing plate, which is also provided with at least two rows of the first holes.

[0014] Part Two: This application discloses a clamping strip system for frame column formwork, comprising two spaced-apart clamping strip devices as described in this application for frame column formwork; It also includes a second guard strip, which includes a second strip plate and a second bend section connected to one end of the second strip plate. The second bend section and the second strip plate form a third limiting space. The second strip plate is provided with at least two rows of second holes. All the second holes in each row are spaced apart along the length of the second strip plate, and the second holes in adjacent rows are staggered. At least one second plate passes through the first limiting space; at least one second plate passes through the second limiting space; except for the second guard strip that passes through the second limiting space, the third limiting spaces of all other second guard strips are passed through by the same first plate.

[0015] The clamping strip system for frame column formwork described in this application, through the cooperation of the second guard strip with the first limiting space and the second limiting space respectively, and the third limiting space of all the second guard strips being passed through the same first strip, enables the clamping strip system for frame column formwork described in this application to meet the purpose of use on at least two adjacent square columns, avoiding the problem of easy interference between clamping strips on adjacent square columns in the prior art, and at the same time, it does not need to shorten the length of the clamping strip, and its length is sufficient to meet the use of square columns in other locations on the construction site, thus having better versatility.

[0016] Preferably, it further includes a first wedge block, which engages with the second hole and abuts against the side of the corresponding first plate away from the second bend.

[0017] Preferably, adjacent second guard strips and adjacent first guard strips form a first area for placing the frame column template; It also includes a second wedge block, which engages with the first hole and abuts against the side of the corresponding second plate away from the first region.

[0018] Preferably, the system further includes a support, which comprises a first plate and a second plate perpendicularly connected to each other. The first plate is provided with a support boss that cooperates with the first hole and / or the second hole, and the second plate is provided with a hanging hole. The support supports the first guard strip and / or the second guard strip, and during installation, the first guard strip and / or the second guard strip are supported on the outer template of the square column through the hanging hole, which facilitates installation.

[0019] Preferably, the support boss is trapezoidal and is located on the inside of the right angle formed by the first plate and the second plate.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The clamping strip device for frame column formwork described in this application includes a first guard strip and a U-shaped seat. By setting the U-shaped seat on the first guard strip, the first guard strip can simultaneously have a first limiting space and a second limiting space, which can meet the purpose of being used on a single square column or on at least two adjacent square columns. Moreover, by setting the U-shaped seat, the problem of easy interference between clamping strips on adjacent square columns in the prior art is avoided. At the same time, it is not necessary to shorten the length of the clamping strip, and its length can be guaranteed to meet the use of square columns in other locations on the construction site, thus improving its versatility. Attached image description: Figure 1 This is a front view schematic diagram of a clamping strip device for frame column formwork according to the present invention.

[0021] Figure 2 This is a schematic diagram of the first protective strip structure of this utility model.

[0022] Figure 3 This is a front view schematic diagram of the U-shaped seat structure of this utility model.

[0023] Figure 4 This is a three-dimensional schematic diagram of the U-shaped seat structure of this utility model.

[0024] Figure 5 This is a schematic diagram showing the fit between the U-shaped seat, the first guard strip, and the connecting plate of this utility model.

[0025] Figure 6 This is a three-dimensional schematic diagram of the connecting plate of this utility model.

[0026] Figure 7 This is a three-dimensional structural diagram of a clamping strip system for frame column formwork according to the present invention.

[0027] Figure 8 This is a schematic diagram of the reinforcing plate of this utility model.

[0028] Figure 9 This is a top view schematic diagram of the clamping strip system for frame column formwork according to the present invention.

[0029] Figure 10 This is a front view schematic diagram of the second guard strip structure of this utility model.

[0030] Figure 11 This is a three-dimensional schematic diagram of the second guard strip structure of this utility model.

[0031] Figure 12 This is a schematic diagram showing the cooperation between the support and the first guard strip of this utility model.

[0032] Figure 13 This is a three-dimensional schematic diagram of the support structure of this utility model.

[0033] Markings in the figure 1-First guard strip, 11-First bend section, 12-First strip plate, 13-First limiting space, 14-First hole; 2-U-shaped seat, 21-first wall, 22-second wall, 23-second limiting space, 24-bore, 25-threaded blind hole, 26-bolt; 3-Locking piece, 31-Through hole; 4-Reinforcing plate; 5-Second guard strip, 51-Second bend section, 52-Second strip plate, 53-Third limiting space, 54-Second hole; 61 - First wedge block, 62 - Second wedge block; 7-First Zone; 8-Support, 81-First plate, 82-Second plate, 83-Support boss, 84-Hanging hole. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0035] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0037] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing between identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0038] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0039] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0040] Example 1 like Figures 1-6 As shown, in a first aspect, the present invention provides a clamping strip device for frame column formwork, comprising a first guard strip 1 and a U-shaped seat 2, wherein: In an optional embodiment, the first guard strip 1 includes a first strip plate 12 and a first bend section 11 connected to one end of the first strip plate 12. The first bend section 11 and the first strip plate 12 form a first limiting space 13. The first strip plate 12 is provided with at least two rows of first strip holes 14. All the first strip holes 14 in each row are spaced apart along the length direction of the first strip plate 12, and the first strip holes 14 in adjacent rows are staggered. In an optional embodiment, the U-shaped seat 2 includes a first wall 21 and a second wall 22 disposed opposite to each other. One end of the first wall 21 and the second wall 22 are connected to each other, and the other end is cantilevered. A second limiting space 23 is provided between the first wall 21 and the second wall 22. At least two bosses 24 that are adapted to all the first holes 14 are protruding from the side of the second wall 22 away from the first wall 21. All the bosses 24 are engaged with at least two rows of the first holes 14. In an optional embodiment, the U-shaped seat 2 and the first bend section 11 are both located on the same side of the first strip 12, and the opening of the first bend section 11 has the same opening direction as the opening of the U-shaped seat 2.

[0041] The clamping strip device for frame column formwork described in this embodiment includes a first guard strip 1 and a U-shaped seat 2. By setting the U-shaped seat 2 on the first guard strip 1, the first guard strip 1 can simultaneously have a first limiting space 13 and a second limiting space 23, which can meet the purpose of being used on a single square column or on at least two adjacent square columns. Moreover, by setting the U-shaped seat 2, the problem of easy interference between clamping strips on adjacent square columns in the prior art is avoided. At the same time, it is not necessary to shorten the length of the clamping strip, and its length can be guaranteed to meet the use of square columns in other locations on the construction site, thus improving its versatility.

[0042] In an optional embodiment, the end of the boss 24 is located inside the corresponding first hole 14 or is flush with the bottom of the first hole 14.

[0043] In an optional embodiment, a locking piece 3 is further included, which is connected to at least two of the bosses 24. The locking piece 3 is located on the side of the first strip 12 away from the U-shaped seat 2. By providing the locking piece 3, the reliability of the connection between the first strip 12 and the U-shaped seat 2 is ensured.

[0044] In an optional embodiment, the locking plate 3 is provided with a through hole 31, and the boss 24 is provided with a threaded blind hole 25 corresponding to the through hole 31; it also includes a bolt 26, which passes through the through hole 31 and is threadedly connected to the threaded blind hole 25.

[0045] In an optional embodiment, the first plate 12 is an H-shaped member, and the first hole 14 is located on the web of the H-shaped member. The H-shaped member can further increase the vertical bending resistance of the first plate 12, thereby allowing the first plate 12 to be made longer and accommodating the construction of more square columns.

[0046] In an optional embodiment, a reinforcing plate 4 is also included, on which at least two rows of the first holes 14 are also provided.

[0047] Example 2 like Figures 1-13 As shown, in a first aspect, the present invention provides a clamping strip system for frame column formwork, comprising two spaced-apart clamping strip devices for frame column formwork as described in Embodiment 1 of this application; In an optional embodiment, a second guard strip 5 is also included. The second guard strip 5 includes a second strip plate 52 and a second bend section 51 connected to one end of the second strip plate 52. The second bend section 51 and the second strip plate 52 form a third limiting space 53. The second strip plate 52 is provided with at least two rows of second holes 54. All the second holes 54 in each row are spaced apart along the length direction of the second strip plate 52, and the second holes 54 in adjacent rows are staggered. In an optional embodiment, at least one second strip 52 passes through the first limiting space 13; at least one second strip 52 passes through the second limiting space 23; except for the second guard strip 5 that passes through the second limiting space 23, the third limiting spaces 53 of all other second guard strips 5 are passed through by the same first strip 12.

[0048] The clamping strip system for frame column formwork described in this application, through the second guard strip 5 respectively cooperating with the first limiting space 13 and the second limiting space 23, and all the third limiting spaces 53 of the second guard strip 5 are passed through by the same first strip 12, so that the clamping strip system for frame column formwork described in this application can meet the purpose of being used on at least two adjacent square columns, avoiding the problem of easy interference between clamping strips on adjacent square columns in the prior art, and at the same time, it does not need to shorten the length of the clamping strip, and its length can be guaranteed to meet the use of square columns in other locations on the construction site, thus having better versatility.

[0049] In an optional embodiment, a first wedge block 61 is also included, which cooperates with the second hole 54 and abuts against the side of the corresponding first plate 12 away from the second bend section 51.

[0050] In an optional embodiment, adjacent second guard strips 5 and adjacent first guard strips 1 form a first area 7 for placing the frame column template; In an optional embodiment, a second wedge block 62 is also included, which cooperates with the first hole 14 and abuts against the side of the corresponding second plate 52 away from the first region 7.

[0051] In an optional embodiment, a support 8 is further included. The support 8 comprises a first plate 81 and a second plate 82 connected perpendicularly to each other. The first plate 81 is provided with a support boss 83 that cooperates with the first slot 14 and / or the second slot 54. The second plate 82 is provided with a hanging hole 84. The support 8 supports the first guard strip 1 and / or the second guard strip 5. During installation, the first guard strip 1 and / or the second guard strip 5 are supported on the outer template of the square column through the hanging hole 84, which facilitates installation.

[0052] Furthermore, it also includes nails that are nailed to the outer template of the square column, with the nails passing through the hanging holes 84 so that the second plate 82 is hung on the nails.

[0053] In an optional embodiment, the support boss 83 is trapezoidal and is located on the inner side of the right angle formed by the first plate 81 and the second plate 82.

[0054] In a preferred embodiment, the clamping strip system for frame column formwork, as a reinforcing component of the frame column formwork, includes a first guard strip 1, a second guard strip 5, a first wedge block 61, and a second wedge block 62. Taking the first guard strip 1 as an example: one end of the first guard strip 1 is bent to form a U-shape, namely the first bend section 11. Simultaneously, the first guard strip 1 has two sets of first strip holes 14 along its length, which are staggered along the length. The first guard strip 1 can be spliced ​​at 90° by being inserted into the second bend section 51 of the second guard strip 5. By splicing four strips in sequence, the four sides of the frame column formwork can be clamped and fixed. The second wedge block 62 can be inserted into any of the first strip holes 14 to the outside of the first guard strip 1, restricting the outward movement of the first guard strip 1 and thus fixing the frame column formwork 5.

[0055] The two sets of first holes 14 are staggered along the length direction, which can avoid the situation where the first hole 14 is just blocked or is a certain distance away from the first hole 14.

[0056] Furthermore, both the first wedge block 61 and the second wedge block 62 are conical structures, with the upper end of the second wedge block 62 being larger than the first hole 14 to prevent it from falling out of the first hole 14.

[0057] Furthermore, it also includes a U-shaped seat 2. The upper end of the U-shaped seat 2 has a hook structure similar to that of the first bend section 11, and the lower end is provided with at least two protrusions 24, preferably three protrusions 24. The three protrusions 24 can be inserted into the three first holes 14. And the bottom of two adjacent protrusions 24 are connected by a locking piece 3 with screws to fix the U-shaped seat 2. In this way, the function of splicing multiple second guard strips 5 can be added in the length direction, and a bidirectional limiting function can be realized.

[0058] Furthermore, the cross-section of the first guard strip 1 is H-shaped, and the structural strength of the first guard strip 1 in the length direction is improved by the wing plates on both sides.

[0059] Furthermore, it also includes a reinforcing plate 4, the structure and size of which are consistent with the web of the first guard strip 1. It is used to place on the upper surface of the first guard strip 1 during installation, and is positioned close to the end of the first guard strip 1. It is limited by the second wedge block 62 to ensure the structural strength of the end of the first guard strip 1 and reduce deformation.

[0060] Furthermore, the aforementioned reinforcing plate 4 can be directly locked onto the first guard strip 1 with bolts.

[0061] Furthermore, it also includes a support 8, which is L-shaped. Its vertical surface has hanging holes 84, allowing it to be hung on the staples of the frame column template 5, or by nailing nails into the frame column template 5 to create a hook. A supporting boss 83 is provided on the horizontal surface of the support 8, which can be inserted into the first hole 14, thereby achieving vertical positioning between the first guard strip 1 and the frame column template. Since the support 8 positions the first guard strip 1 through the supporting boss 83, it can be moved and adjusted along the length of the first guard strip 1.

[0062] Similarly, the other supports 8 can position the second guard strip 5 by supporting the boss 83, and thus can be moved and adjusted along the length direction of the first guard strip 1.

[0063] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamping strip device for frame column formwork, characterized in that, include The first guard strip (1) includes a first strip plate (12) and a first bend section (11) connected to one end of the first strip plate (12). The first bend section (11) and the first strip plate (12) form a first limiting space (13). The first strip plate (12) is provided with at least two rows of first holes (14). All the first holes (14) in each row are spaced apart along the length direction of the first strip plate (12), and the first holes (14) in adjacent rows are staggered. The U-shaped seat (2) includes a first wall (21) and a second wall (22) arranged opposite to each other. The first wall (21) and the second wall (22) are connected at one end and cantilevered at the other end. There is a second limiting space (23) between the first wall (21) and the second wall (22). At least two bosses (24) that are adapted to all the first holes (14) are protruding from the side of the second wall (22) away from the first wall (21). All the bosses (24) are engaged with at least two rows of the first holes (14). The U-shaped seat (2) and the first bend section (11) are both located on the same side of the first strip (12), and the opening of the first bend section (11) is in the same direction as the opening of the U-shaped seat (2).

2. The clamping strip device for frame column formwork according to claim 1, characterized in that, The end of the boss (24) is located inside the corresponding first hole (14) or is flush with the bottom of the first hole (14); It also includes a locking piece (3), which is connected to at least two of the bosses (24) and is located on the side of the first strip (12) away from the U-shaped seat (2).

3. A clamping strip device for frame column formwork according to claim 2, characterized in that, The locking plate (3) is provided with a through hole (31), and the boss (24) is provided with a threaded blind hole (25) corresponding to the through hole (31); it also includes a bolt (26), which passes through the through hole (31) and is threadedly connected to the threaded blind hole (25).

4. A clamping strip device for frame column formwork according to claim 1, characterized in that, The first strip (12) is an H-shaped component, and the first hole (14) is located on the web of the H-shaped component.

5. A clamping strip device for frame column formwork according to any one of claims 1-4, characterized in that, It also includes a reinforcing plate (4), on which at least two rows of the first hole (14) are also provided.

6. A clamping strip system for frame column formwork, characterized in that, Includes two spaced-apart clamping strip devices for frame column formwork as described in any one of claims 1-5; It also includes a second guard strip (5), which includes a second strip plate (52) and a second bend section (51) connected to one end of the second strip plate (52). The second bend section (51) and the second strip plate (52) form a third limiting space (53). The second strip plate (52) is provided with at least two rows of second holes (54). All the second holes (54) in each row are spaced apart along the length direction of the second strip plate (52), and the second holes (54) in adjacent rows are staggered. At least one second strip (52) passes through the first limiting space (13); at least one second strip (52) passes through the second limiting space (23); except for the second guard strip (5) that passes through the second limiting space (23), the third limiting spaces (53) of all other second guard strips (5) are passed through by the same first strip (12).

7. A clamping strip system for frame column formwork according to claim 6, characterized in that, It also includes a first wedge block (61), which cooperates with the second hole (54) and abuts against the side of the corresponding first plate (12) away from the second bend (51).

8. A clamping strip system for frame column formwork according to claim 6, characterized in that, The adjacent second guard strip (5) and the adjacent first guard strip (1) form a first area (7) for placing the frame column template; It also includes a second wedge (62), which engages with the first hole (14) and abuts against the side of the corresponding second plate (52) away from the first region (7).

9. A clamping strip system for frame column formwork according to claim 6, characterized in that, It also includes a support (8), which includes a first plate (81) and a second plate (82) that are perpendicularly connected to each other. The first plate (81) is provided with a support boss (83) that supports and cooperates with the first hole (14) and / or the second hole (54). The second plate (82) is provided with a hanging hole (84).

10. A clamping strip system for frame column formwork according to claim 9, characterized in that, The support boss (83) is trapezoidal and is located on the inside of the right angle formed by the first plate (81) and the second plate (82).

Images