Temporary formwork supporting device and adjusting method thereof

Abstract

The invention discloses a temporary formwork supporting device and an adjusting method thereof.The temporary formwork supporting device comprises a base, a backup plate mechanism used for supporting a formwork and an inclined supporting mechanism used for supporting the backup plate mechanism, and the bottom end of the backup plate mechanism is hinged to the base; the telescopic piece is embedded in the sleeve in a sliding mode and used for supporting the backup plate mechanism, the first positioning piece is used for fixing the length of the portion, stretching out of the sleeve, of the telescopic piece, and a plurality of clamping grooves used for being connected with the inclined supporting mechanism in a clamping mode are formed in the base. The backup plate mechanism comprises a U-shaped groove, a supporting plate embedded in the U-shaped groove in a sliding mode and a second positioning piece used for fixing the relative position of the supporting plate and the U-shaped groove, the bottom end of the U-shaped groove is hinged to the base, and the top end of the supporting plate is hinged to the top end of the telescopic piece; the structure is simple, an auxiliary fixing structure does not need to be additionally assembled on the side slope and the ground, height adjustment and supporting angle adjustment are easy and convenient to operate, the construction efficiency can be improved, and the application range is wide.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering construction, and in particular, to a temporary formwork support device. In addition, the present invention also relates to an adjustment method comprising the temporary formwork support device. Background Art

[0002] Formwork support systems are often required in construction, decoration or other situations where temporary support is required.

[0003] Traditional formwork support systems are usually composed of a series of fixed rods, connectors and bases, which are used to build and maintain the position of the formwork to ensure that the shape and size of materials such as concrete meet the design requirements during the solidification process. For example, the excavation and lining integrated foundation pit vertical support device disclosed in Chinese patent CN 114319369B is installed on the top of the slope through the top anchor assembly, which forms an inward pulling force on the top of the formwork. The support assembly is supported near the bottom of the formwork to stabilize the foundation of the plate assembly, so that the formwork remains vertically supported. This formwork support device has the following limitations:

[0004] 1. Different projects may require different support angles and heights, and it is difficult to adjust the support angles and heights.

[0005] 2. For temporary support needs, quick installation and disassembly are very important. It is necessary to set up auxiliary positioning structures on the top of the slope and on the ground. The installation and disassembly are complicated, which will reduce construction efficiency. Summary of the invention

[0006] The invention provides a temporary formwork support device and an adjustment method thereof, so as to solve the technical problems that the existing formwork support device is difficult to adjust the support angle and height, is complicated to install and disassemble, and has low construction efficiency.

[0007] According to one aspect of the present invention, a temporary formwork support device is provided, comprising a base, a backing plate mechanism for supporting the formwork, and a diagonal support mechanism for supporting the backing plate mechanism, the bottom end of the backing plate mechanism is hinged to the base, the diagonal support mechanism comprises a sleeve, a telescopic member slidably embedded in the sleeve for supporting the backing plate mechanism, and a first positioning member for fixing the length of the telescopic member extending out of the sleeve, the base is provided with a plurality of card grooves for clamping the diagonal support mechanism, the backing plate mechanism comprises a U-shaped groove, a support plate slidably embedded in the U-shaped groove, and a second positioning member for fixing the relative position of the support plate and the U-shaped groove, the bottom end of the U-shaped groove is hinged to the base, and the top end of the support plate is hinged to the top end of the telescopic member.

[0008] Furthermore, a first limiting plate is arranged at the bottom end of the U-shaped groove, and a second limiting plate is arranged at the top end of the support plate. The first limiting plate, the support plate, the U-shaped groove and the second limiting plate form a limiting groove for limiting the template.

[0009] Furthermore, the support plate mechanism also includes a limiting rod for preventing the template from tipping over, and the first limiting plate and the second limiting plate are provided with through holes for passing the limiting rod.

[0010] Furthermore, the U-shaped groove includes a bottom plate and side plates symmetrically arranged on both sides of the bottom plate, and the side surface of the support plate facing away from the diagonal support mechanism is flush with the side surface of the side plate facing away from the bottom plate.

[0011] Furthermore, the second positioning member is a second latch pin, the side plate is provided with a second latch pin hole for passing the second latch pin, the support plate is provided with a third latch pin hole for passing the second latch pin, and the second latch pin passes through the second latch pin hole and the third latch pin hole to position the support plate.

[0012] Furthermore, the second positioning member is a bolt, the bottom plate is provided with a through hole for passing the bolt, the support plate is provided with a countersunk hole for passing the bolt, and the bolt passes through the through hole and the countersunk hole to position the support plate.

[0013] Furthermore, the first positioning member is a first latch pin, and the sleeve is provided with a first latch pin hole for passing the first latch pin, and the first latch pin passes through the first latch pin hole to support the telescopic member.

[0014] Furthermore, the sleeve is provided with a groove arranged along the sliding direction of the telescopic member.

[0015] Furthermore, the top end of the support plate is hinged to the top end of the telescopic member, and the U-shaped groove is arranged perpendicularly to the base.

[0016] According to another aspect of the present invention, a method for adjusting a temporary formwork support device is provided, which is used to adjust the temporary formwork support device, and comprises the following steps:

[0017] S1, obtaining the friction coefficient μ between the sleeve and the slot;

[0018] S2. Calculate the angle β between the diagonal support mechanism and the base according to the maximum static friction between the sleeve and the slot.

[0019]

[0020] S3. Determine the position of the sleeve inserted into the slot on the base according to the angle β.

[0021] The present invention has the following beneficial effects:

[0022] The temporary formwork supporting device of the present invention is characterized in that the supporting plate can slide along the extension direction of the U-groove, the length of the supporting plate extending out of the U-groove can be adjusted according to the size of the formwork, and the relative positions of the supporting plate and the U-groove are fixed by the second positioning member, so that the supporting height can be adjusted for formworks of different sizes, thereby providing good support for the formwork and preventing the formwork from tipping toward the base; the bottom end of the sleeve is inserted into the slot on the base, and the supporting angle of the formwork is adjusted by adjusting the length of the telescopic member extending out of the sleeve; the structure is simple, and no auxiliary fixing structure needs to be additionally assembled on the slope and the ground; the height adjustment and the supporting angle adjustment are easy to operate, which can improve the construction efficiency and has a wide range of applications; the sleeve is inserted into the corresponding slot according to the supporting height of the formwork, which can ensure that the diagonal support mechanism provides stable support for the supporting plate mechanism, thereby making the supporting angle of the formwork unchanged, thereby ensuring smooth construction.

[0023] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 It is a structural schematic diagram of a temporary formwork support device according to a preferred embodiment of the present invention;

[0026] Figure 2 is a schematic structural diagram of a first limiting plate in a preferred embodiment of the present invention;

[0027] Figure 3 is a schematic structural diagram of a second limiting plate in a preferred embodiment of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the diagonal bracing mechanism of a preferred embodiment of the present invention;

[0029] Figure 5 is a schematic structural diagram of a sleeve in a preferred embodiment of the present invention;

[0030] Figure 6 is a schematic structural diagram of a base plate in a preferred embodiment of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of a bolt in a preferred embodiment of the present invention;

[0032] Figure 8 It is a force analysis diagram of a temporary formwork support device according to a preferred embodiment of the present invention.

[0033] Legend:

[0034] 100. Template; 1. Base; 11. Slot; 12. First hinge axis; 2. Plate support mechanism; 21. U-shaped slot; 211. Bottom plate; 2111. Through hole; 212. Side plate; 2121. Second latch hole; 213. First limit plate; 22. Support plate; 221. Second limit plate; 222. Third latch hole; 223. Countersunk hole; 23. Second latch; 24. Limit rod; 25. Bolt; 3. Diagonal bracing mechanism; 31. Sleeve; 311. First latch hole; 312. Slot; 32. Telescopic member; 321. Second hinge axis; 33. First latch; 331. Reserved hole. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0036] Please also read Figures 1 to 8 The temporary formwork supporting device of this embodiment includes a base 1, a backing plate mechanism 2 for supporting the formwork 100, and a diagonal support mechanism 3 for supporting the backing plate mechanism 2. The bottom end of the backing plate mechanism 2 is hinged to the base 1 through a first hinge shaft 12. The diagonal support mechanism 3 includes a sleeve 31, a telescopic member 32 slidably embedded in the sleeve 31 for supporting the backing plate mechanism 2, and a first positioning member for fixing the length of the telescopic member 32 extending out of the sleeve 31. A plurality of card grooves 11 for clamping the diagonal support mechanism 3 are arranged on the base 1. The backing plate mechanism 2 includes a U-shaped groove 21, a support plate 22 slidably embedded in the U-shaped groove 21, and a second positioning member for fixing the relative position of the support plate 22 and the U-shaped groove 21. The bottom end of the U-shaped groove 21 is hinged to the base 1, and the top end of the support plate 22 is hinged to the top end of the telescopic member 32.

[0037] In the temporary formwork supporting device of this embodiment, the support plate 22 can slide along the extension direction of the U-shaped groove 21, and the length of the support plate 22 extending out of the U-shaped groove 21 can be adjusted according to the size of the formwork 100, and the relative position of the support plate 22 and the U-shaped groove 21 is fixed by the second positioning member, and the support height can be adjusted for formworks 100 of different sizes, so as to provide good support for the formwork 100 and prevent the formwork 100 from tipping toward the base 1; the bottom end of the sleeve 31 is inserted into the slot 11 on the base 1, and the support angle of the formwork 100 is adjusted by adjusting the length of the telescopic member 32 extending out of the sleeve 31. The structure is simple, and no auxiliary fixing structure is required to be additionally assembled on the slope and the ground. The height adjustment and the support angle adjustment are easy to operate, which can improve the construction efficiency and has a wide range of applications; inserting the sleeve 31 into the corresponding slot 11 according to the support height of the formwork 100 can ensure that the diagonal support mechanism 3 provides stable support to the plate support mechanism 2, so that the support angle of the formwork 100 remains unchanged, thereby ensuring smooth construction.

[0038] Optionally, a plurality of latches adapted to the top of the telescopic member 32 are arranged on the back of the support plate 22. Optionally, the sleeve 31 is a square cylinder, and the telescopic member 32 is a rectangular plate, which can prevent the telescopic member 32 from rotating, and can also increase the contact length of the telescopic member 32 supporting the plate mechanism 2, thereby increasing the stability of the support of the diagonal support mechanism 3. Optionally, the sleeve 31 is a cylinder, and the telescopic member 32 is a cylindrical rod, and the telescopic member 32 of the rod is not easy to deform relative to the telescopic member 32 of the plate, and its structure is simple and low in cost. Optionally, an anti-skid structure is arranged on the bottom surface of the base 1 to increase the friction between the base 1 and the ground, which can effectively prevent the base 1 from shifting sideways and improve the stability of the temporary formwork support device. Optionally, the anti-skid structure is a dot-shaped protrusion, a linear protrusion arranged at intervals, and a strip-shaped protrusion arranged at intervals with continuous bending.

[0039] like Figure 2 and Figure 3 As shown, in this embodiment, a first limiting plate 213 is arranged at the bottom end of the U-shaped groove 21, and a second limiting plate 221 is arranged at the top end of the support plate 22. The first limiting plate 213, the support plate 22, the U-shaped groove 21 and the second limiting plate 221 form a limiting groove for limiting the template 100. The length of the support plate 22 extending out of the U-shaped groove 21 is adjusted according to the size of the template 100, and the template 100 is positioned by the second positioning member so that the first limiting plate 213 and the second limiting plate 221 clamp the template 100. The structure is simple and can prevent the template 100 from moving or tipping over. The first limiting plate 213 and the second limiting plate 221 are straight plates to facilitate the removal of the temporary template support device.

[0040] like Figure 2 and Figure 3 As shown, in this embodiment, the backing plate mechanism 2 also includes a limiting rod 24 for preventing the template 100 from tipping over. The first limiting plate 213 and the second limiting plate 221 are provided with through holes for passing the limiting rod 24. When in use, the limiting rod 24 passes through the second limiting plate 221 and the first limiting plate 213 from top to bottom in sequence, which can limit the position of the template 100 in the limiting groove and prevent the template 100 from tipping over; after the limiting rod 24 passes through the first limiting plate 213, it is inserted into the ground 20 to 30 cm, which can support the backing plate mechanism 2 and prevent the template 100 from tipping over in a direction away from the base 1 together with the backing plate mechanism 2.

[0041] like Figure 4 As shown, in this embodiment, the U-shaped groove 21 includes a bottom plate 211 and side plates 212 symmetrically arranged on both sides of the bottom plate 211. The side of the support plate 22 away from the diagonal support mechanism 3 is flush with the side of the side plate 212 away from the bottom plate 211, so that the contact surface between the support plate mechanism 2 and the template 100 is smooth, which can increase the contact area between the support plate mechanism 2 and the template 100 and ensure the stability of the support plate mechanism 2 supporting the template 100.

[0042] like Figure 4 and Figure 5 As shown, in the present embodiment, the second positioning member is a second latch 23, a second latch hole 2121 for passing the second latch 23 is provided on the side plate 212, and a third latch hole 222 for passing the second latch 23 is provided on the support plate 22. The second latch 23 passes through the second latch hole 2121 and the third latch hole 222 to position the support plate 22. Since the second latch 23 is arranged on the side of the support plate mechanism 2, when in use, the template 100 can be first leaned against the support plate 22, and then the length of the support plate 22 extending out of the U-shaped groove 21 is adjusted according to the size of the template 100, and then the support plate 22 is limited by the second latch 23, so that the support plate mechanism 2 can accurately adapt to the size of the template 100, and the operation is convenient; to prevent the support plate 22 from rotating, there are at least two second latches 23.

[0043] like Figure 6 and Figure 7 As shown, in this embodiment, the second positioning member is a bolt 25, a through hole 2111 for passing the bolt 25 is opened on the bottom plate 211, and a countersunk hole 223 for passing the bolt 25 is opened on the support plate 22. The bolt 25 passes through the through hole 2111 and the countersunk hole 223 to position the support plate 22. When in use, the length of the support plate 22 extending out of the U-shaped groove 21 needs to be adjusted according to the size of the template 100, and limited by a bolt 25. It has a simple structure, is easy to process, and has a low production cost.

[0044] like Figure 4 and Figure 5 As shown, in this embodiment, the first positioning member is a first latch 33, and a first latch hole 311 for passing the first latch 33 is provided on the sleeve 31, and the first latch 33 passes through the first latch hole 311 to support the telescopic member 32. Optionally, a reserved hole 331 is provided at the end of the first latch 33, and the thin steel bar is passed through the reserved hole 331. On the one hand, it can prevent the first latch 33 from slipping during the construction process; on the other hand, it is convenient for the first latch 33 to be centrally stored after the construction is completed.

[0045] like Figure 5 As shown, in this embodiment, a slot 312 is provided on the sleeve 31 along the sliding direction of the telescopic member 32. When the telescopic member 32 is stuck, the telescopic member 32 can be moved through the slot 312 to ensure normal use of the temporary formwork support device.

[0046] like Figure 4 and Figure 5As shown, in this embodiment, the top end of the support plate 22 and the top end of the telescopic member 32 are hinged via a second hinge shaft 321, which can prevent the diagonal support mechanism 3 from slipping off the support plate mechanism 2, and has a good supporting effect. The U-shaped groove 21 is arranged perpendicular to the base 1 to ensure that the template 100 is arranged perpendicular to the base 1.

[0047] like Figure 8 As shown, a method for adjusting a temporary formwork support device is used to adjust the temporary formwork support device, which comprises the following steps:

[0048] S1, obtaining the friction coefficient μ between the sleeve 31 and the slot 11;

[0049] S2, calculating the angle β between the diagonal support mechanism 3 and the base 1 according to the maximum static friction force between the sleeve 31 and the slot 11;

[0050] The base 1, the support plate mechanism 2 and the diagonal support mechanism 3 form a triangular static structure, the first hinge axis 12 is the vertex A, the second hinge axis 321 is the vertex C, the slot 11 on the base 1 into which the diagonal support mechanism 3 is inserted is the vertex B, and the diagonal support mechanism 3 and the base 1 form an angle β, which is related to the friction coefficient μ between the sleeve 31 and the slot 11. The specific relationship is derived as follows:

[0051] This working condition is analyzed after the template 100 is backfilled with soil. At this time, the template 100 is vertical to the ground and the static soil pressure is:

[0052]

[0053] Where γ is the gravity density of the backfill soil; H is the depth of the backfill soil; K0 is the static earth pressure coefficient.

[0054] Because F L =Fcosβ,F N =Fsinβ,

[0055] Wherein, F is the supporting force of the slot 11 on the diagonal support mechanism 3, F L is the horizontal component of the support force F, F N is the vertical component of the support force F.

[0056] Assuming that the base 1 is placed horizontally, the backfill pressure behind the template 100 is the static soil pressure, and the static soil pressure resultant force E0 is located at H / 3 of the support plate mechanism 2 (the centroid position of the triangular distributed load). The diagonal bracing mechanism 3 and the support plate structure 2 are selected for local force analysis. The force model is as follows: Figure 8 As shown, according to the static equilibrium condition, the resultant moment of vertex C is 0, ∑M C =0, and the resultant moment at vertex A is 0, ∑M A =0, respectively

[0057] In the formula, F L1 is the pressure of the base 1 on the U-shaped groove 21;

[0058] Available,

[0059] Taking the base 1 for local force analysis, it can be seen that the maximum static friction between the sleeve 31 and the slot 11 is f max ,

[0060]

[0061] Wherein, μ is the friction coefficient between the sleeve 31 and the slot 11 .

[0062] To ensure that the diagonal bracing mechanism 3 remains fixed during construction, the maximum static friction force f max It must be greater than or equal to the static earth pressure E0, that is,

[0063]

[0064] Therefore,

[0065]

[0066] S3. Determine the position of the sleeve 31 inserted into the slot 11 on the base 1 according to the angle β.

[0067] Since the friction coefficient μ between the sleeve 31 and the slot 11 is smaller than the friction coefficient between the base 1 and the ground, the angle between the diagonal support mechanism 3 and the base 1 is When the base 1 is lifted, the base 1 and the ground will not slide.

[0068] This method is derived by calculating the pressure of the backfill behind the template 100 according to the static earth pressure, which conforms to the actual working conditions. Since the pressure distribution on the side of the template 100 during concrete pouring is the same as the static earth pressure of the backfill, this method is generally suitable for determining the support parameters of temporary templates when used for retaining earth or retaining concrete.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A temporary formwork support device, characterized in that: The invention comprises a base (1), a support plate mechanism (2) for supporting a template, and a diagonal support mechanism (3) for supporting the support plate mechanism (2), wherein the bottom end of the support plate mechanism (2) is hinged to the base (1), and the diagonal support mechanism (3) comprises a sleeve (31), a telescopic member (32) slidably embedded in the sleeve (31) for supporting the support plate mechanism (2), and a first positioning member for fixing the length of the telescopic member (32) extending out of the sleeve (31), wherein the bottom end of the support plate mechanism (2) is hinged to the base (1), and the diagonal support mechanism (3) comprises a sleeve (31), a telescopic member (32) slidably embedded in the sleeve (31) for supporting the support plate mechanism (2), and a first positioning member for fixing the length of the telescopic member (32) extending out of the sleeve (31). The seat (1) is provided with a plurality of slots (11) for clamping the diagonal support mechanism (3); the support plate mechanism (2) comprises a U-shaped slot (21), a support plate (22) slidably embedded in the U-shaped slot (21), and a second positioning member for fixing the relative position of the support plate (22) and the U-shaped slot (21); the bottom end of the U-shaped slot (21) is hinged to the base (1), and the top end of the support plate (22) is hinged to the top end of the telescopic member (32).

2. The temporary formwork support device according to claim 1, characterized in that: A first limiting plate (213) is arranged at the bottom end of the U-shaped groove (21), and a second limiting plate (221) is arranged at the top end of the support plate (22); the first limiting plate (213), the support plate (22), the U-shaped groove (21) and the second limiting plate (221) form a limiting groove for limiting the template.

3. The temporary formwork support device according to claim 2, characterized in that: The plate support mechanism (2) further comprises a limiting rod (24) for preventing the template from tipping over, and a through hole for passing the limiting rod (24) is arranged on the first limiting plate (213) and the second limiting plate (221).

4. The temporary formwork support device according to any one of claims 1 to 3, characterized in that: The U-shaped groove (21) comprises a bottom plate (211) and side plates (212) symmetrically arranged on both sides of the bottom plate (211), and the side surface of the support plate (22) facing away from the diagonal support mechanism (3) is flush with the side surface of the side plate (212) facing away from the bottom plate (211).

5. The temporary formwork support device according to claim 4, characterized in that: The second positioning member is a second latch pin (23); a second latch pin hole (2121) for passing the second latch pin (23) is provided on the side plate (212); a third latch pin hole (222) for passing the second latch pin (23) is provided on the support plate (22); the second latch pin (23) passes through the second latch pin hole (2121) and the third latch pin hole (222) to position the support plate (22).

6. The temporary formwork support device according to claim 4, characterized in that: The second positioning member is a bolt (25); a through hole (2111) for passing the bolt (25) is provided on the bottom plate (211); a countersunk hole for passing the bolt (25) is provided on the support plate (22); the bolt (25) passes through the through hole (2111) and the countersunk hole to position the support plate (22).

7. The temporary formwork support device according to claim 1, characterized in that: The first positioning member is a first latch pin (33), and the sleeve (31) is provided with a first latch pin hole (311) for passing the first latch pin (33), and the first latch pin (33) passes through the first latch pin hole (311) to support the telescopic member (32).

8. The temporary formwork support device according to claim 1, characterized in that: The sleeve (31) is provided with a slot (312) arranged along the sliding direction of the telescopic member (32).

9. The temporary formwork support device according to claim 4, characterized in that: The top end of the support plate (22) is hinged to the top end of the telescopic member (32), and the U-shaped groove (21) and the base (1) are arranged vertically.

10. A method for adjusting a temporary formwork support device, characterized in that: The method for adjusting the temporary formwork support device according to claim 9 comprises the following steps: S1, obtaining a friction coefficient μ between the sleeve (31) and the slot (11); S2, calculating the angle β between the diagonal support mechanism 3 and the base (1) according to the maximum static friction force between the sleeve (31) and the slot (11), S3. Determine the position of the sleeve (31) inserted into the slot (11) on the base (1) according to the included angle β.

Images