Detachable combined steel formwork convenient to construct

Abstract

The utility model belongs to the technical field of building formworks, and particularly discloses a detachable combined steel formwork convenient to construct. The steel formwork comprises a base, stand columns, connecting rods and a steel formwork body, the base and the steel formwork body are each of a long-strip-shaped plate-shaped structure, the stand columns are fixed to the outer side face of the base, perpendicular to the length direction of the base and extend outwards, at least two stand columns are arranged on the outer side face of the base in the length direction, and a plurality of clamping grooves I are formed in the stand columns in the length direction; at least two clamping blocks I are arranged on the outer side faces of the steel formworks in the length direction, the clamping blocks I are clamped in the clamping grooves I in a sliding mode, and the two ends of the connecting rod are detachably connected with the stand columns and / or the steel formwork at the topmost end. The stand columns and the steel formworks are correspondingly provided with the clamping grooves I and the clamping blocks I which can be clamped in the sliding mode, so that the steel formworks can be freely spliced according to needs, the formworks on the two sides are connected through the connecting rods to form a needed pouring cavity, and the formwork has the advantages of being simple in structure, high in applicability, capable of being used repeatedly, convenient and fast to construct and convenient to transport.

Description

Technical Field

[0001] The utility model belongs to the technical field of building templates, and specifically relates to a detachable combined steel template which has the advantages of simple structure, strong applicability, reusability, convenient construction and convenient transportation. Background Art

[0002] In the construction process of building projects and municipal projects, interception and drainage ditches are often built due to the need for drainage. Whether it is an open ditch or a concealed ditch, concrete ditches are the most common, widely covered, and least difficult to build ditch. In the process of pouring concrete, a template is needed to shape the poured concrete to achieve the required size.

[0003] At present, the common templates used in construction include wooden templates, plastic templates, steel templates, plywood templates and aluminum alloy templates. Among them, although wooden templates, plastic templates and plywood templates are light and easy to transport, and wooden templates and plywood templates are also easy to process on demand, these three templates also have the problem of low strength and easy damage after repeated installation and removal. In addition, wooden templates are prone to deformation and delamination due to water erosion. The processed wooden templates and plywood templates can only be used for ditch construction with smaller cross-sectional dimensions, etc., so these three templates are reused less frequently. Existing steel templates and aluminum alloy templates have been improved to address the shortcomings of wooden templates, so they have higher strength and reuse rate, but aluminum alloy templates have higher material costs and higher welding costs in the production process, resulting in more widespread application of steel templates.

[0004] In the prior art, bolts or pins are usually used to connect multiple steel formworks together, which not only makes disassembly and assembly troublesome and time-consuming, but also requires manual or other instruments to position the steel formworks during construction in order to ensure the accuracy of the installation, which greatly reduces the efficiency of installation; and the steel formworks connected by bolts or pins need to consider the size differences between the formworks, so that there is often a large gap at the joint after connection, which can easily cause the poured concrete to leak out and affect the construction quality. For this reason, in the prior art, connecting grooves and splicing blocks are respectively set around the steel formworks, so that the adjacent steel formworks can be connected to each other through the sliding fit of the connecting grooves and the splicing blocks; although the connection structure is simple and the assembly and disassembly is quick, it is easy to be disengaged due to external factors such as concrete pressure due to the lack of a strong limiting structure, resulting in low connection reliability and a narrow range of application. To this end, there is also a method of setting an independent clamping piece, then bending the edge of the steel template outward to form a rib, and setting a spring-pushed clamping column inside the clamping piece, and setting a corresponding limit hole on the rib, so that the clamping column can be clamped into the limit hole under the elastic force of the spring to fix the two ribs, and quickly and effectively fix the two steel templates. In addition, there is also a method of setting a clamping groove and a corresponding clamping block structure around the steel template, and connecting adjacent steel templates through the clamping of the clamping groove and the clamping block, and setting a spring-pushed clamping block in the clamping groove and the clamping block to insert into the clamping groove, so as to avoid the problem of disengagement under the action of external force. However, the above-mentioned locking structure pushed or pulled by a spring is easy to cause the spring to rust and get stuck, which affects the normal expansion and contraction, because a large amount of dust, water vapor and leaked concrete are mixed in the construction environment, so it is rarely used in practice. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model develops a detachable combined steel formwork which has the advantages of simple structure, strong applicability, reusability, convenient transportation and convenient construction.

[0006] The utility model is implemented as follows: it includes a base, a column, a connecting rod, and a steel template, the base and the steel template are both long strip plate structures, the column is fixedly arranged on the outer side of the base and is perpendicular to the length direction of the base and extends outward from the base, at least two columns are arranged at intervals on the outer side of the base along the length direction, a portion of the column extending out of the base is arranged at intervals along the length direction, at least two card blocks I are arranged at intervals on the outer side of the steel template along the length direction, the card blocks I can be slidably connected in the card slots I, and the two ends of the connecting rod are detachably connected to the columns and / or the topmost steel template.

[0007] Furthermore, the spacing between adjacent slots I on the column is the same as the spacing between blocks I between adjacent steel templates, the width of the slot I is greater than the width of block I, and the vertical distance between the top of block I and the surface of the steel template is less than the depth of the slot I.

[0008] Furthermore, the slot I is a dovetail slot or a right-angle trapezoidal slot, the block I is a trapezoidal block or an "Ω"-shaped elastic ring corresponding to the shape of the slot I, and the maximum diameter of the "Ω"-shaped elastic ring in a free state is greater than the height of the opening end of the slot I.

[0009] Furthermore, the upper end surface of the steel formwork along the length direction is provided with a connecting groove I and the lower end surface is provided with a connecting block I, the connecting block I of the upper and lower adjacent steel formworks can be slidably engaged in the connecting groove I, and the upper end surface of the base along the length direction is provided with a connecting groove II that can be slidably engaged with the connecting block I.

[0010] Furthermore, the connecting groove I and the connecting groove II are respectively a "V"-shaped groove, a "U"-shaped groove or a square groove, and the shape of the connecting block I corresponds to the shape of the connecting groove I.

[0011] Furthermore, the steel template is provided with a boss I and a boss II at both ends along the length direction, and the boss II of the left and right adjacent steel templates is clamped with the boss I. The base is provided with a boss III and a boss IV that can be clamped with the boss III at both ends along the length direction, or the base is provided with connecting bolts at both ends along the length direction.

[0012] Furthermore, boss I and boss II at both ends of the steel template are arranged face to face, boss III and boss IV at both ends of the base are arranged face to face, and grooves and protrusions that can be engaged with each other are respectively arranged on the opposing surfaces of boss I and boss II and boss III and boss IV.

[0013] Furthermore, the inner surfaces of the clamping groove I, connecting groove I, boss I, connecting groove II and boss III and / or the outer surfaces of the clamping block I, connecting block I, boss II and boss IV are sprayed with a polyethylene anti-corrosion coating.

[0014] Furthermore, the connecting rod is a straight rod structure and has connecting blocks V at both ends that can be slidably engaged with the slot I, or the connecting rod is a "[" shaped structure, and the connecting rod with the "[" shaped structure can be slidably engaged with the column and / or steel formwork.

[0015] Furthermore, a slot II is provided at the top of the column and / or the upper end surface of the uppermost layer of the combined steel formwork, and a block III which can be slidably engaged with the slot II is provided on the end surfaces of the rods on both sides of the connecting rod of the "["-shaped structure.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model has correspondingly arranged slidably engaged card slots I and card blocks I on the columns and steel templates, so that the steel templates can be freely spliced ​​upward for ditches with different cross-sections, and the spliced ​​steel templates on both sides are connected by connecting rods to form the required casting cavity. Therefore, it is not only highly applicable, but also convenient to install and disassemble. It can also be reused many times and is convenient for replacement after local damage. It also lowers the construction threshold and can meet the needs of workers with different cultural levels to carry out construction. The volume is small after disassembly, which is convenient for transportation and warehousing.

[0018] 2. The steel formwork used in the utility model has high strength, and the steel formwork is further reinforced with columns on the outer facade of the casting cavity, and the steel formwork spliced ​​on both sides is connected by connecting rods to form a stable casting cavity, thereby ensuring that the cast concrete has good quality.

[0019] 3. The slot I of the utility model is a dovetail slot or a right-angle trapezoidal slot, and the block I is a trapezoidal block or an "Ω"-shaped elastic ring corresponding to the shape of the slot I, especially the block I of the "Ω"-shaped elastic ring, which can not only adapt to the problem of difficulty in aligning with the slot I due to the upper and lower size deviations between different steel templates, but also can adapt to the problem of difficulty in aligning with the slot I due to the upper and lower position deviations of the block I on the steel template, thereby reducing the production accuracy requirements of the steel template and ultimately reducing the production cost.

[0020] 4. The utility model further provides connection groove I and connection block I at the upper and lower ends of the steel template, and provides connection groove II on the upper end surface of the base; and provides boss I and boss II on the left and right sides of the steel template, and provides boss III and boss IV on both sides of the base, so as to improve the strength of the steel template connection, and eliminate the gap at the connection by sliding the connection block in the connection groove and cooperating between the bosses, thus avoiding the problem of concrete leakage during pouring, and mutually engaging grooves and protrusions are provided on the opposite surfaces of the bosses, which not only limits the left and right movement between each other to avoid disengagement, but also improves the reliability of the connection, and the structure without springs and other moving parts also improves the reliability of disassembly and assembly.

[0021] In summary, the utility model has the characteristics of simple structure, strong applicability, reusability, convenient construction and convenient transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 This is one of the longitudinal partial cross-sectional views of the connection between the column and the steel formwork of the utility model;

[0024] Figure 3 This is the second longitudinal partial cross-sectional view of the connection between the column and the steel formwork of the utility model;

[0025] Figure 4 It is a partial cross-sectional view of the connection between the left and right adjacent steel formworks of the utility model;

[0026] In the figure: 1-base, 2-column, 21-slot I, 3-connecting rod, 4-steel template, 41-block I, 42-connecting slot I, 43-connecting block I, 44-boss I, 45-boss II, 5-groove, 6-protrusion. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention belong to the protection scope of the present invention.

[0028] like Figures 1 to 4 As shown, the utility model includes a base 1, a column 2, a connecting rod 3, and a steel template 4. The base 1 and the steel template 4 are both long strip plate structures. The column 2 is fixedly arranged on the outer side of the base 1 and is perpendicular to the length direction of the base 1 and extends outward from the base 1. At least two columns 2 are arranged at intervals along the length direction on the outer side of the base 1. The part of the column 2 extending out of the base 1 is arranged at intervals along the length direction. At least two card blocks Ⅰ21 are arranged at intervals along the length direction on the outer side of the steel template 4. The card blocks Ⅰ41 can be slidably connected in the card slots Ⅰ21. The two ends of the connecting rod 3 are detachably connected to the columns 2 and / or the topmost steel template 4.

[0029] The spacing between adjacent slots Ⅰ21 on the column 2 is the same as the spacing between blocks Ⅰ41 between adjacent steel templates 4. The width of the slot Ⅰ21 is greater than the width of the block Ⅰ41. The vertical distance between the top of the block Ⅰ41 and the surface of the steel template 4 is less than the depth of the slot Ⅰ21.

[0030] The slot I21 is a dovetail slot or a right-angle trapezoidal slot, the block I41 is a trapezoidal block or an "Ω"-shaped elastic ring corresponding to the shape of the slot I21, and the maximum diameter of the "Ω"-shaped elastic ring in the free state is greater than the height of the opening end of the slot I21.

[0031] The steel formwork 4 is provided with a connecting groove Ⅰ42 on the upper end surface along the length direction and a connecting block Ⅰ43 on the lower end surface. The connecting blocks Ⅰ43 of the upper and lower adjacent steel formworks 4 can be slidably engaged in the connecting groove Ⅰ42. The base 1 is provided with a connecting groove Ⅱ on the upper end surface along the length direction which can be slidably engaged with the connecting block Ⅰ43.

[0032] The connecting groove I 42 and the connecting groove II are respectively a “V”-shaped groove, a “U”-shaped groove or a square groove, and the shape of the connecting block I 43 corresponds to the shape of the connecting groove I 42 .

[0033] The steel template 4 is also provided with a boss I 44 and a boss II 45 at both ends along the length direction, and the boss II 45 of the left and right adjacent steel templates 4 is clamped with the boss I 44. The base 1 is also provided with a boss III and a boss IV that can be clamped with the boss III at both ends along the length direction, or the base 1 is also provided with connecting bolts at both ends along the length direction.

[0034] The boss I 44 and boss II 45 at both ends of the steel template 4 are arranged face to face with each other, and the boss III and boss IV at both ends of the base 1 are arranged face to face with each other. The opposing surfaces of the boss I 44 and boss II 45 and boss III and boss IV are respectively provided with grooves 5 and protrusions 6 that can be engaged with each other.

[0035] The groove 5 and the protrusion 6 extend in a direction perpendicular to the length direction of the steel template 4 or the base 1 .

[0036] The inner surfaces of the clamping groove Ⅰ21, the connecting groove Ⅰ42, the boss Ⅰ44, the connecting groove Ⅱ and the boss Ⅲ and / or the outer surfaces of the clamping block Ⅰ41, the connecting block Ⅰ43, the boss Ⅱ45 and the boss Ⅳ are sprayed with a polyethylene anti-corrosion coating. The polyethylene anti-corrosion coating can enhance the anti-corrosion performance of the connecting parts, not only can it reduce or even avoid the difficulty of installation and disassembly due to rust, but also has a certain lubrication ability, thereby improving the flexibility during clamping.

[0037] The connecting rod 3 is a straight rod structure and has connecting blocks V at both ends that can be slidably engaged with the slots Ⅰ21, or the connecting rod 3 is a "["-shaped structure, and the connecting rod 3 of the "["-shaped structure can be slidably engaged with the columns 2 and / or the steel formwork 4.

[0038] A slot II is provided at the top of the column 2 and / or the upper end surface of the steel formwork 4 of the uppermost layer of the combined steel formwork, and a clamping block III which can be slidably engaged with the slot II is provided on the end surfaces of the rods on both sides of the connecting rod 3 of the "["-shaped structure.

[0039] The working principle and working process of this utility model:

[0040] like Figures 1 to 4As shown, when the ditch formwork is erected, according to the design, the base 1 is first placed on the foundation or cushion layer, and then the column 2 is fixed to the outer surface of the base 1 by bolts, etc., and then the steel templates 4 are stacked up and down on the base 1 in sequence according to the designed height of the ditch casting, so that the connection block Ⅰ43 of the lower end surface of the steel template 4 at the bottom layer is clamped with the connection groove Ⅱ on the upper end surface of the base 1, and the connection block Ⅰ43 of the adjacent steel template 4 is clamped with the connection groove Ⅰ42, and the clamping block Ⅰ41 on the outer side of each steel template 4 is clamped into the clamping groove Ⅰ21 of the column 2, and the combined steel template on one side is completed. Formwork of the template; if the length of the ditch formwork is greater than the length of the single steel template 4, the boss III on the end faces of the left and right adjacent bases 1 are clamped with the boss IV, and the boss I44 on the end faces of the left and right adjacent steel templates 4 are clamped with the boss II45, so that the protrusion 6 and the groove 5 are engaged to form a longer template; after the templates on both sides are completed as required, finally use the "["-shaped connecting rod 3 to make the block III set on the end faces of the connecting rod 3 on both sides slide and clamp in the groove II on the upper end face of the topmost steel template 4 of the combined steel templates on both sides to complete the ditch formwork work.

[0041] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A detachable composite steel formwork with convenient construction, characterized in that: The invention comprises a base (1), a column (2), a connecting rod (3), and a steel template (4), wherein the base (1) and the steel template (4) are both long strip-shaped plate-like structures, the column (2) is fixedly arranged on the outer side surface of the base (1) and is perpendicular to the length direction of the base (1) and extends outward from the base (1), at least two columns (2) are arranged at intervals on the outer side surface of the base (1) along the length direction, a portion of the column (2) extending out of the base (1) is provided with a plurality of slots I (21) at intervals along the length direction, at least two blocks I (41) are arranged at intervals on the outer side surface of the steel template (4) along the length direction, the blocks I (41) can be slidably engaged in the slots I (21), and the two ends of the connecting rod (3) are detachably connected to the column (2) and / or the topmost steel template (4).

2. According to claim 1, the detachable composite steel formwork with convenient construction is characterized in that: The spacing between adjacent slots I (21) on the column (2) is the same as the spacing between blocks I (41) between adjacent steel templates (4), the width of the slots I (21) is greater than the width of the blocks I (41), and the vertical distance between the top of the blocks I (41) and the surface of the steel template (4) is less than the depth of the slots I (21).

3. According to claim 2, the detachable composite steel formwork with convenient construction is characterized in that: The slot I (21) is a dovetail slot or a right-angled trapezoidal slot, the block I (41) is a trapezoidal block or an "Ω"-shaped elastic ring corresponding to the shape of the slot I (21), and the maximum diameter of the "Ω"-shaped elastic ring in a free state is greater than the height of the opening end of the slot I (21).

4. According to claim 2, the detachable composite steel formwork with convenient construction is characterized in that: The upper end surface of the steel template (4) along the length direction is provided with a connection groove I (42) and the lower end surface is provided with a connection block I (43), and the connection blocks I (43) of the upper and lower adjacent steel templates (4) can be slidably engaged in the connection groove I (42), and the upper end surface of the base (1) along the length direction is provided with a connection groove II that can be slidably engaged with the connection block I (43).

5. According to claim 4, the detachable composite steel formwork with convenient construction is characterized in that: The connecting groove I (42) and the connecting groove II are respectively a "V"-shaped groove, a "U"-shaped groove or a square groove, and the shape of the connecting block I (43) corresponds to the shape of the connecting groove II.

6. According to claim 4, the detachable composite steel formwork with convenient construction is characterized in that: The steel template (4) is also provided with a boss I (44) and a boss II (45) at both ends along the length direction, and the boss II (45) of the adjacent steel templates (4) on the left and right is clamped with the boss I (44). The base (1) is also provided with a boss III and a boss IV that can be clamped with the boss III at both ends along the length direction, or the base (1) is also provided with connecting bolts at both ends along the length direction.

7. The detachable composite steel formwork with convenient construction according to claim 6 is characterized in that: The boss I (44) and boss II (45) at both ends of the steel template (4) are arranged face to face with each other, and the boss III and boss IV at both ends of the base (1) are arranged face to face with each other. The boss I (44) and boss II (45) and boss III and boss IV are respectively provided with grooves (5) and protrusions (6) that can be engaged with each other on their opposing surfaces.

8. The detachable composite steel formwork with convenient construction according to claim 6 is characterized in that: The inner surfaces of the clamping groove I (21), the connecting groove I (42), the boss I (44), the connecting groove II and the boss III and / or the outer surfaces of the clamping block I (41), the connecting block I (43), the boss II (45) and the boss IV are sprayed with a polyethylene anti-corrosion coating.

9. The detachable composite steel formwork with convenient construction according to any one of claims 1 to 8, characterized in that: The connecting rod (3) is a straight rod structure and is provided with connecting blocks V at both ends that can be slidably engaged with the engaging grooves I (21), or the connecting rod (3) is a "["-shaped structure, and the connecting rod (3) of the "["-shaped structure can be slidably engaged with the column (2) and / or the steel formwork (4).

10. The detachable composite steel formwork with convenient construction according to claim 9 is characterized in that: A slot II is provided at the top of the column (2) and / or the upper end surface of the uppermost steel template (4) of the combined steel template, and a clamping block III which can be slidably engaged with the slot II is provided on the end surfaces of the two side rods of the connecting rod (3) of the "["-shaped structure.

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