Template fastening device for building construction

Abstract

The utility model relates to a template fastening device for building construction. The template fastening device comprises a pull rod, a movable clamping plate and a nut, wherein the pull rod comprises a screw rod and a supporting rod which are vertically connected together; the movable clamping plate comprises an L-shaped plate with a preset length and a round supporting pipe, the L-shaped plate comprises a clamping plate and a fixing plate which are perpendicular to each other, the round supporting pipe is welded and fixed to the inner side face of the fixing plate and is perpendicular to the clamping plate, and a pull rod hole coaxial with the round supporting pipe is formed in the clamping plate; the screw penetrates through the round supporting pipe and the pull rod hole, the nut is in threaded connection with the external thread of the pull rod, and the movable clamping plate is located between the supporting rod and the nut. When the template fastening device is used, the template fastening device can be hooked at the internal corner of an inner side template through the supporting rod of the pull rod, and the movable clamping plate with the preset length is clamped on an outer side template, so that the clamping length of the outer side template is increased, and the phenomenon of slurry leakage caused by the fact that a template external corner connecting part corresponding to the position of the internal corner of the template cannot be clamped is avoided; and the concrete pouring construction quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and more specifically, to a template fastening device used in building construction. Background Art

[0002] At present, in construction, after the formwork is set up for columns (frame columns, door frame columns), shear walls, door frame beams, etc., the gaps in the formwork are not tight, and leakage will occur after pouring concrete. The formwork needs to be reinforced to prevent leakage. Due to differences in the technical levels of individual construction workers, they use various temporary tools such as step-by-step tightening. Some workers use step-by-step tightening devices, which cannot adjust the angle with the concave corners. The formwork is not firmly reinforced, causing leakage, affecting the appearance construction quality of the concrete after pouring. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a formwork fastening device for construction, aiming to solve the problems existing in the prior art.

[0004] According to the utility model, a template fastening device for construction is provided, which comprises a pull rod, a movable clamping plate and a nut; wherein:

[0005] The pull rod comprises a screw rod and a support rod, one end of the support rod is vertically connected to the first end of the screw rod, and the second end of the screw rod is provided with an external thread;

[0006] The movable clamping plate comprises an L-shaped plate of a preset length and a round support tube, the L-shaped plate comprises a clamping plate and a fixing plate which are perpendicularly arranged to each other, the round support tube is welded and fixed to the inner side surface of the fixing plate, and the round support tube is perpendicular to the clamping plate, and a pull rod hole coaxial with the round support tube is opened on the clamping plate;

[0007] The screw rod passes through the round support tube and the tie rod hole, the nut is threadedly connected to the external thread of the tie rod, and the movable clamping plate is located between the support rod and the nut.

[0008] Preferably, the support rod is a rectangular rod, and a plurality of anti-slip grooves are provided on the side of the support rod facing the screw rod. The extension direction of the anti-slip grooves is perpendicular to the length direction of the support rod, and the plurality of anti-slip grooves are evenly distributed along the length direction of the support rod.

[0009] Preferably, the length of the L-shaped plate is 300-400 mm.

[0010] Preferably, the width of the clamping plate is greater than the width of the fixing plate.

[0011] Preferably, a plurality of reinforcing ribs are provided on the side of the clamping plate facing away from the fixing plate, and the reinforcing ribs are extended along the width direction of the clamping plate.

[0012] Preferably, the clamping plate is integrally formed by bending a steel plate.

[0013] Preferably, the clamping plate is made of unequal angle steel.

[0014] Preferably, a rubber pad is provided on the inner side of the clamping plate.

[0015] Preferably, a through circular hole is opened in the middle of the support rod, the extension direction of the circular hole is perpendicular to the length direction of the support rod, and the circular hole is tangent to the side of the support rod facing the screw rod, and the circular hole can be used to insert a matching round steel rod.

[0016] Preferably, a circular arc-shaped protrusion is provided on the side of the support rod facing away from the screw rod, and the circular arc surface of the circular arc-shaped protrusion is arranged concentrically with the circular hole.

[0017] The formwork fastening device for construction provided by the utility model can be hung on the inner corner of the inner formwork through the support rod hook of the pull rod, and a movable clamp of a preset length is clamped on the outer formwork, thereby increasing the clamping length of the outer formwork, avoiding the leakage of slurry due to the inability to clamp the connection between the outer corner of the formwork and the position of the inner corner of the formwork, thereby improving the quality of concrete pouring construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings.

[0019] Figure 1 and Figure 2 They are respectively schematic diagrams of the three-dimensional structures of the formwork fastening device used for building construction according to the embodiments of the utility model.

[0020] Figure 3 A longitudinal sectional view of a formwork fastening device for building construction according to an embodiment of the utility model is shown.

[0021] Figure 4 The invention shows a schematic diagram of the installation of a template fastening device for building construction when used at a template inner corner position according to an embodiment of the utility model.

[0022] Figure 5 The figure shows a schematic diagram of the installation of the template fastening device for building construction according to the embodiment of the utility model when it is used in the middle position of the template.

[0023] In the figure: 1. pull rod; 11. support rod; 111. anti-slip groove; 112. round hole; 113. arc-shaped protrusion; 12. screw; 121. external thread; 2. movable splint; 21. L-shaped plate; 211. clamping plate; 2111. pull rod hole; 212. fixing plate; 22. round support tube; 23. reinforcing rib; 24. rubber pad; 3. nut; 4. round steel bar. DETAILED DESCRIPTION

[0024] Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. In each of the accompanying drawings, the same elements are represented by the same or similar reference numerals. For the sake of clarity, the various parts in the accompanying drawings are not drawn to scale.

[0025] The utility model provides a template fastening device for building construction, see Figures 1 to 3 The template fastening device for construction includes a pull rod 1, a movable splint 2 and a nut 3; wherein the pull rod 1 includes a screw rod 12 and a support rod 11, one end of the support rod 11 is vertically connected to the first end of the screw rod 12, and the second end of the screw rod 12 is provided with an external thread 121; the movable splint 2 includes an L-shaped plate 21 of a preset length and a round support tube 22, the L-shaped plate 21 includes a clamping plate 211 and a fixing plate 212 arranged perpendicularly to each other, the round support tube 22 is welded and fixed on the inner side surface of the fixing plate 212, and the round support tube 22 is perpendicular to the clamping plate 211, and a pull rod hole 2111 is provided on the clamping plate 211 that is coaxial with the round support tube 22; the screw rod 12 passes through the round support tube 22 and the pull rod hole 2111, the nut 3 is threadedly connected to the external thread 121 of the pull rod 1, and the movable splint 2 is located between the support rod 11 and the nut 3.

[0026] Specifically, when the template fastening device for construction is used, the support rod 11 of the pull rod 1 can be hooked at the inner template inner corner, such as Figure 4 As shown, the movable clamping plate 2 is clamped on the outer template. Since the L-shaped plate 21 in the movable clamping plate 2 has a certain length, the problem that the outer corner connection of the template corresponding to the inner corner position of the template cannot be clamped can be solved. The movable clamping plate 2 increases the clamping length of the outer template, so that the outer corner connection of the template can also be effectively clamped, preventing the gap at the template connection during concrete pouring, causing leakage and affecting the construction quality of concrete.

[0027] Furthermore, the support rod 11 is a rectangular rod. The support rod 11 adopts a rectangular rod, which can increase the contact area and friction when the support rod 11 is connected to the template. A plurality of anti-skid grooves 111 are provided on the side of the support rod 11 facing the screw rod 12. The extension direction of the anti-skid grooves 111 is perpendicular to the length direction of the support rod 11, and the plurality of anti-skid grooves 111 are evenly distributed along the length direction of the support rod 11. By providing the anti-skid grooves 111 on the support rod 11, the friction between the support rod 11 and the template is further increased during use, thereby avoiding sliding during clamping and ensuring the reliability of the template fastening device during use.

[0028] The screw rod 12 is made of round steel, the first end of the screw rod 12 is welded and fixed on the support rod 11, and the second end of the screw rod 12 is processed with an external thread 121 for connecting the nut 3. In this embodiment, the nut 3 is a hexagonal nut.

[0029] In the movable splint 2, the length of the L-shaped plate 21 is 300~400mm, the round support tube 22 and the pull rod hole 2111 are arranged in the middle position of the L-shaped plate 21. When the template fastening device is in use, the screw 12 is arranged perpendicular to the template, and the L-shaped plate 21 is located on both sides of the screw 12 with a clamping length of 150~200mm respectively, so that the template can be better clamped and the clamping length can be expanded.

[0030] Preferably, the width of the clamping plate 211 is greater than the width of the fixed plate 212. The fixed plate 212 can increase the bending strength of the clamping plate 211 in the length direction. The clamping plate 211 is set to a larger width to increase the clamping area with the template and increase the clamping reliability. In order to prevent the clamping plate 211 with a larger width from bending and deforming in the width direction when clamping the template, a plurality of reinforcing ribs 23 are further provided on the side of the clamping plate 211 away from the fixed plate 212. The reinforcing ribs 23 extend along the width direction of the clamping plate 211 and can be welded and fixed to the clamping plate 211.

[0031] The clamping plate 211 can be formed as a whole by bending a steel plate, or the clamping plate 211 is made of unequal angle steel. In this embodiment, the clamping plate 211 is made of unequal angle steel, and the round support tube 22 is made of a seamless steel tube. The inner diameter of the round support tube 22 is 0.5-1 mm larger than the diameter of the screw 12, which is convenient for the screw 12 to pass through and can also avoid shaking caused by excessive gaps. By providing the round support tube 22, the connection length between the movable splint 2 and the screw 12 is increased, ensuring that the movable splint 2 is tilted when in use.

[0032] Furthermore, a rubber pad 24 is provided on the inner side of the clamping plate 211. By providing the rubber pad 24 on the inner side of the clamping plate 211, the friction between the clamping plate 211 and the template can be increased when the template fastening device is in use, thereby avoiding slippage between the clamping plate 211 and the template and increasing reliability during use.

[0033] Furthermore, a through circular hole 112 is provided in the middle of the support rod 11, and the extension direction of the circular hole 112 is perpendicular to the length direction of the support rod 11, and the circular hole 112 is tangent to the side of the support rod 11 facing the screw rod 12, and the circular hole 112 can be used to insert a round steel rod 4 that matches it. After the round steel rod 4 is inserted into the circular hole 112 of the support rod 11, the clamping length of the support rod 11 when clamping the template can be increased, and the clamping area can be increased. When clamping the template at a non-recessed corner position, by arranging the round steel rod 4 on the support rod 11, the clamping area of ​​the template is increased, and local deformation of the template when clamping is avoided. Figure 5 As shown, it is a reference diagram when the template is fastened and connected after the round steel rod 4 is inserted into the support rod 11. After the circular hole 112 is opened on the support rod 11, the cross-sectional area of ​​the support rod 11 at the location where the circular hole 112 is opened is reduced, which affects the bending strength at this location. Therefore, an arc-shaped protrusion 113 is provided on the side of the support rod 11 away from the screw rod 12, and the arc surface of the arc-shaped protrusion 113 is arranged concentrically with the circular hole 112. By providing the arc-shaped protrusion 113 on the support rod 11, the problem of poor strength at the location where the circular hole 112 is opened on the support rod 11 is solved.

[0034] In summary, the formwork fastening device for construction provided by the utility model can be hooked on the inner corner of the inner formwork through the support rod of the pull rod, and the movable clamp of a preset length is clamped on the outer formwork, thereby increasing the clamping length of the outer formwork, avoiding the leakage of slurry at the connection of the outer corner of the formwork corresponding to the inner corner of the formwork due to the inability to clamp, thereby improving the quality of concrete pouring construction.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0036] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A formwork fastening device for building construction, characterized in that: It includes a pull rod, a movable splint and a nut; wherein, The pull rod comprises a screw rod and a support rod, one end of the support rod is vertically connected to the first end of the screw rod, and the second end of the screw rod is provided with an external thread; The movable clamping plate comprises an L-shaped plate of a preset length and a round support tube, the L-shaped plate comprises a clamping plate and a fixing plate which are perpendicularly arranged to each other, the round support tube is welded and fixed to the inner side surface of the fixing plate, and the round support tube is perpendicular to the clamping plate, and a pull rod hole coaxial with the round support tube is opened on the clamping plate; The screw rod passes through the round support tube and the tie rod hole, the nut is threadedly connected to the external thread of the tie rod, and the movable clamping plate is located between the support rod and the nut.

2. The formwork fastening device for construction according to claim 1, characterized in that: The support rod is a rectangular rod, and a plurality of anti-skid grooves are provided on the side of the support rod facing the screw rod. The extension direction of the anti-skid grooves is perpendicular to the length direction of the support rod, and the plurality of anti-skid grooves are evenly distributed along the length direction of the support rod.

3. The formwork fastening device for construction according to claim 1, characterized in that: The length of the L-shaped plate is 300-400 mm.

4. The formwork fastening device for construction according to claim 1, characterized in that: The width of the clamping plate is greater than the width of the fixing plate.

5. The formwork fastening device for construction according to claim 4, characterized in that: A plurality of reinforcing ribs are arranged on the side of the clamping plate away from the fixing plate, and the reinforcing ribs are extended along the width direction of the clamping plate.

6. The formwork fastening device for construction according to claim 4, characterized in that: The clamping plate is integrally formed by bending a steel plate.

7. The formwork fastening device for construction according to claim 4, characterized in that: The clamping plate is made of unequal angle steel.

8. The formwork fastening device for construction according to claim 1, characterized in that: A rubber pad is arranged on the inner side surface of the clamping plate.

9. The formwork fastening device for construction according to claim 1, characterized in that: A through circular hole is provided in the middle of the support rod, the extension direction of the circular hole is perpendicular to the length direction of the support rod, and the circular hole is tangent to the side of the support rod facing the screw rod, and the circular hole can be used to insert a matching round steel rod.

10. The formwork fastening device for construction according to claim 9, characterized in that: A circular arc protrusion is arranged on the side of the support rod facing away from the screw rod, and the circular arc surface of the circular arc protrusion is arranged concentrically with the circular hole.

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