Adjustable steel column form

Abstract

The application provides a adjustable steel column outer pouring concrete mold, which comprises a template, which is provided with multiple pieces and is distributed on each side of the steel column, the two ends of the template extend outward, so that the overall length of the template is greater than the standard length; two cushion blocks are arranged on the two ends of the outside of the steel column before the assembly of the template, which limits the gap between the template and the steel column and blocks the gap between the two ends of the steel column and the template during pouring, so as to prevent the concrete from leaking from the two ends of the steel column; and a limiting component is arranged to limit the position of the cushion block corresponding to the steel column. The setting of the cushion block can reduce the probability of interference between the two adjacent templates, improve the assembly efficiency of the template, and the cushion block is in an independent state and can block the gap between the two ends of the steel column and the template. The position of the cushion block can be adjusted to realize the production of concrete steel columns with different lengths, and the structure is simple and the cost is relatively low.

Description

Technical Field

[0001] This invention relates to the field of steel column external concrete casting mold technology, specifically to an adjustable steel column external concrete casting mold. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] Concrete steel columns are a common type of precast component in building construction. They are usually prefabricated in a factory workshop and then transported to the construction site for further construction after they have solidified. However, the length of precast concrete steel columns is often standardized, which requires construction workers to uniformly determine the height of the foundation before installing the concrete steel columns, which obviously increases construction costs.

[0004] Because the steel formwork used during the prefabrication of concrete steel columns is specially produced for a certain specification of concrete steel columns, and its length cannot be adjusted, if concrete steel columns of different lengths are to be made, additional formwork needs to be specially made, which will undoubtedly increase the cost. Under the current technology, the only option is to "standardize the height of the foundation before installing the concrete steel columns", which increases the cost relatively less.

[0005] Furthermore, when precasting concrete steel columns, taking a rectangular concrete steel column as an example, steel sections are pre-welded around the perimeter of the steel column. When assembling the steel formwork on the outside of the steel column, one piece of steel formwork is first hoisted to the corresponding side of the steel column. Then, the pre-cut slots on the steel formwork are aligned with the steel sections, allowing the steel sections to pass through the slots and the steel formwork to fall onto the corresponding side of the steel column. The steel formwork on the remaining sides of the steel column is then assembled in the same manner. Adjacent steel formwork is connected by bolts. Finally, end plates are placed on both ends of the steel column, and the end plates are also fixedly connected to the remaining steel formwork by bolts.

[0006] However, during the assembly of the steel formwork, a gap needs to be left between the formwork and the steel column for concrete pouring. When the first steel formwork is placed on the corresponding side of the steel column, it will directly contact the steel column. When the next steel formwork is in place, interference will occur because the position of the first steel formwork is inaccurate. At this time, the position of the first steel formwork needs to be readjusted to ensure that the current steel formwork is in place and the screw holes on the two steel formworks are aligned. As a result, the assembly efficiency of the formwork is low, and it is time-consuming and labor-intensive. Summary of the Invention

[0007] To address the shortcomings mentioned in the background art, the present invention provides a steel column external concrete casting mold that facilitates the placement of steel formwork and has an adjustable length.

[0008] To achieve the above objectives, the technical solution of the present invention is as follows: an adjustable steel column external concrete casting mold, comprising:

[0009] The template consists of multiple pieces distributed on each side of the steel column. Both ends of the template extend outward, making the overall length of the template greater than the standard length.

[0010] The spacer blocks, consisting of two blocks, are used to fit over the two ends of the outer side of the steel column before the formwork is assembled, to limit the gap between the formwork and the steel column, and to seal the gap between the two ends of the steel column and the formwork during the pouring process, preventing concrete from leaking from the two ends of the steel column.

[0011] The limiting component is used to limit the position of the corresponding steel column of the pad block.

[0012] Furthermore, the side of the corresponding template of the pad block and the steel column are respectively provided with a continuous ring-shaped sealing airbag. By inflating the sealing airbag, the gap between the template and the steel column is raised between template assembly, so that the gap between the template and the steel column is greater than the gap required during pouring. After the template assembly is completed, the gap between the pad block and the template and between the pad block and the steel column are sealed.

[0013] Furthermore, the pad is provided with a gas storage bottle, which is connected to each sealing airbag through a gas pipeline to supply gas to each sealing airbag and maintain the pressure inside the sealing airbag within a preset range.

[0014] Furthermore, the gas pipeline is also equipped with a vent valve for releasing the gas inside the sealed airbag.

[0015] Furthermore, multiple gas storage cylinders are provided, and the multiple gas storage cylinders are connected in series, with one of the gas storage cylinders connected to the gas pipeline.

[0016] Furthermore, a hanging plate is provided on one side of the corresponding steel column end of the pad block. One end of the hanging plate is fixedly connected to the pad block, and the other end is hooked to the end of the steel column and makes multi-point contact or surface contact with the end face of the steel column. The hanging plate is used to control the distance between the corresponding steel column ends of the pad block and also serves as the mounting base for the gas cylinder.

[0017] Furthermore, the limiting component includes two connecting plates located at both ends of the steel column. The connecting plates are detachably connected to the corresponding templates. In the vertical direction, the connecting plates are provided with a gap between themselves and the steel column to allow the hanging plates to pass through.

[0018] A stop rod is fixedly installed on one side of the corresponding connecting plate of the pad block. A through hole is opened on the connecting plate for the stop rod to pass through. A pushing unit is provided on the connecting plate. The pushing unit is used to apply a pushing force to the stop rod, driving the pad block to move away from the connecting plate, and cooperates with the hanging plate to limit the pad block.

[0019] Furthermore, the pushing unit includes an outer sleeve rotatably disposed at the corresponding abutment rod positions on the connecting plate, an inner sleeve spirally disposed inside the outer sleeve, and a limit block disposed inside the inner sleeve;

[0020] Each abutment rod is inserted into the corresponding inner sleeve. Each abutment rod has multiple limiting grooves that are adapted to the limiting block. Each limiting groove is distributed along the length of the abutment rod. One side of the limiting groove is open to allow the limiting block to enter, and the other side of the limiting groove is used to prevent the limiting block from continuing to rotate in the limiting groove.

[0021] When a thrust is applied to the abutting rod, rotating the outer sleeve causes the inner sleeve to rotate, causing the corresponding limiting block to enter the limiting groove. At this time, the limiting groove limits the limiting block, and the outer sleeve cannot drive the inner sleeve to rotate. At this time, continue to rotate the outer sleeve to drive the inner sleeve to move towards the pad block, thus applying a thrust to the abutting rod.

[0022] Furthermore, the outer sleeve and the inner sleeve are connected through at both ends, and the connecting plate has a through hole at the position corresponding to the inner sleeve for the inner sleeve to pass through.

[0023] Furthermore, the template is a steel template with reinforcing ribs, and adjacent steel templates are detachably connected by bolts.

[0024] The beneficial effects of this invention are reflected in:

[0025] The present invention uses spacers to reduce the probability of interference between adjacent templates, improve the assembly efficiency of the templates, and allow the spacers to be in an independent state and seal the gaps between the two ends of the steel column and the template. By adjusting the position of the spacers, concrete steel columns of different lengths can be produced. The structure is simple and the cost is relatively low. Attached Figure Description

[0026] In the attached diagram:

[0027] Figure 1 This is a diagram showing the usage state of the adjustable steel column external concrete casting mold described in this invention;

[0028] Figure 2 This is a partial sectional view of the adjustable steel column external concrete casting mold described in this invention;

[0029] Figure 3 This is a schematic diagram of the structure of the pad block described in this invention;

[0030] Figure 4 This is a schematic diagram of the structure of the pushing unit described in this invention;

[0031] Figure 5 These are finished concrete steel columns after the pouring process is completed.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Template; 11. Reinforcing ribs;

[0034] 2. Pad; 21. Sealing airbag; 22. Gas cylinder; 23. Gas pipeline; 24. Vent valve; 25. Hanging plate; 26. Abutment rod; 261. Limiting groove;

[0035] 3. Connecting plate;

[0036] 4. Pushing unit; 41. Outer sleeve; 42. Inner sleeve; 43. Limiting block. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0038] See Figures 1 to 5 .

[0039] This invention discloses an adjustable steel column external concrete casting mold, comprising:

[0040] Template 1 consists of multiple pieces distributed on each side of the steel column. Both ends of template 1 extend outward, making the overall length of template 1 greater than the standard length.

[0041] Spacer 2, provided in two pieces, is used to fit on both ends of the outside of the steel column before the formwork 1 is assembled, to limit the gap between the formwork 1 and the steel column, and to seal the gap between the two ends of the steel column and the formwork 1 during the pouring process, preventing concrete from leaking from both ends of the steel column.

[0042] The limiting component is used to limit the position of the corresponding steel column of the pad block 2.

[0043] In practice, when assembling template 1, the first template 1 is hoisted and placed on the side of the steel column. Under the constraint of the pad block 2, template 1 maintains a certain gap with the steel column. Then, the next template 1 is hoisted. Since the distance between the first template 1 and the steel column is controlled, the second template 1 will not interfere with the first template 1. The second template 1 can be positioned more easily. The same applies to other templates 1, thereby improving the assembly efficiency of template 1.

[0044] Furthermore, when it is necessary to make concrete steel columns of different lengths, since the length of template 1 is greater than the standard length (the standard length can be understood as the length of template 1 when the height of the foundation is uniform; it can also be understood as the average length of the concrete steel column) and the pad 2 is in an independent state, the position of the pad 2 can be adjusted to make concrete steel columns of different lengths. Moreover, since the pad 2 exists independently, the position of the pad 2 can be adjusted steplessly, so that concrete steel columns of various lengths can be made according to local conditions.

[0045] It should be noted that the concrete steel columns in this application are used in the same construction site. Since the height of the steel section on the concrete steel column relative to the horizontal plane is fixed in the same construction site, the change in the length of the concrete steel column is only a change in the bottom height and the top height. Therefore, it is not necessary to adjust the position of the perforation on the template 1 for the steel section to pass through.

[0046] The present invention provides that the pad block 2 can reduce the probability of interference between two adjacent template blocks 1, improve the assembly efficiency of template 1, and at the same time, the pad block 2 is in an independent state and can seal the gap between the two ends of the steel column and the template 1. By adjusting the position of the pad block 2, concrete steel columns of different lengths can be produced. The structure is simple and the cost is relatively low.

[0047] In one embodiment, the side of the pad block 2, the corresponding template 1, and the steel column are respectively provided with a continuous annular sealing airbag 21. By inflating the sealing airbag 21, the gap between the template 1 and the steel column is raised during the assembly of the template 1, so that the gap between the template 1 and the steel column is greater than the gap required during pouring. After the template 1 is assembled, the gap between the pad block 2 and the template 1, and between the pad block 2 and the steel column are sealed.

[0048] In practice, by inflating the sealing airbag 21, the airbag on the side of the corresponding steel column of the pad 2 can improve the limiting ability between the pad 2 and the steel column when it expands, so that the position of the pad 2 will not easily deviate after it is determined, and the auxiliary limiting component will also limit the pad 2. When the airbag on the side of the corresponding template 1 of the pad 2 expands, it can raise the gap between the template 1 and the steel column. In this way, when two adjacent templates 1 are installed, there will be no interference. After the template 1 is installed, the sealing airbag 21 can be squeezed by inserting and tightening the bolts, so that the gap between the template 1 and the steel column is equal to the gap required during pouring, and at the same time, the sealing performance between the pad 2 and the template 1 and between the pad 2 and the steel column is improved.

[0049] In one embodiment, the pad 2 is provided with a gas storage cylinder 22, which is connected to each sealing airbag 21 through a gas pipeline 23, supplies gas to each sealing airbag 21 and maintains the pressure inside the sealing airbag 21 within a preset range.

[0050] The gas pipeline 23 is also equipped with a vent valve 24, which is used to release the gas inside the sealing airbag 21.

[0051] In practice, the gas cylinder 22 has its own opening and closing function (it has a built-in valve). When the gas cylinder 22 is open, it connects to each sealing airbag 21 through the gas pipeline 23, supplying gas to each sealing airbag 21, giving the sealing airbag 21 sufficient pressure to push the template 1 that has not yet been assembled. When the template 1 is being assembled, tightening the bolts will squeeze the sealing airbag 21 in the opposite direction, and the gas inside the airbag will be squeezed back into the gas cylinder 22. When disassembling the template, the gas cylinder 22 is closed, and then the vent valve 24 is opened to release the gas inside the sealing airbag 21, making it easy to remove the pad 2. Since the gas cylinder 22 is a common existing technology, its specific structure will not be described in detail here.

[0052] Preferably, multiple gas cylinders 22 are provided, connected in series, and connected to the gas pipeline 23 through one of the gas cylinders 22. This can further improve the pressure stabilization effect, and can also be used multiple times after one gas replenishment.

[0053] Preferably, an air inflator (embedded inside the pad 2) can be provided at the connection between the air passage 23 and the sealing airbag 21. The air passage 23 is connected to the air inflator, and the sealing airbag 21 is provided with an air inlet. The air inflator introduces air into the sealing airbag 21 through the air inlet. (Refer to the air inlet structure and air inflator structure of a basketball)

[0054] In one embodiment, a hanging plate 25 is provided on one side of the corresponding steel column end of the pad 2. One end of the hanging plate 25 is fixedly connected to the pad 2, and the other end is hooked to the end of the steel column, making multi-point or surface contact with the end face of the steel column. The hanging plate 25 is used to control the distance between the pad 2 and the corresponding steel column end, and also serves as the mounting base for the gas cylinder 22. Based on the characteristics of the concrete steel column, where both ends of the steel column are exposed at a specified distance from the concrete, the hanging plate 25 can directly position the pad 2 at the end of the concrete, eliminating the need to spend time adjusting the position of the pad 2. At the same time, the multi-point or surface contact between the hanging plate 25 and the end face of the steel column facilitates the adjustment of the posture of the pad 2, preventing the pad 2 from tilting.

[0055] In one embodiment, the limiting component includes two connecting plates 3 located at both ends of the steel column. The connecting plates 3 are detachably connected to the corresponding template 1. In the vertical direction, the connecting plates 3 are provided with a gap between themselves and the steel column for the hanging plate 25 to pass through.

[0056] A contact rod 26 is fixedly provided on one side of the corresponding connecting plate 3 of the pad 2. The connecting plate 3 has a through hole for the contact rod 26 to pass through. A pushing unit 4 is provided on the connecting plate 3. The pushing unit 4 is used to apply a pushing force to the contact rod 26, driving the pad 2 to move away from the connecting plate 3, and cooperates with the hanging plate 25 to limit the pad 2.

[0057] In practice, the abutment rod 26 and the hanging plate 25 are respectively set on the four sides of the pad 2. The abutment force of the abutment rod 26 pushes the pad 2 to move, thereby making the hanging plate 25 contact the end face of the steel column. This not only limits the pad 2, but also adjusts the posture of the pad 2 to prevent the pad 2 from tilting.

[0058] Preferably, the connecting plate 3 and the end of the corresponding template 1 are detachably connected by bolts.

[0059] In one embodiment, the pushing unit 4 includes an outer sleeve 41 rotatably disposed at the corresponding positions of the abutting rods 26 on the connecting plate 3, an inner sleeve 42 is spirally disposed inside the outer sleeve 41, and a limit block 43 is disposed inside the inner sleeve 42.

[0060] Each abutment rod 26 is inserted into the corresponding inner sleeve 42. Each abutment rod 26 has multiple limiting grooves 261 that are adapted to the limiting block 43. Each limiting groove 261 is distributed along the length of the abutment rod 26. One side of the limiting groove 261 is open for the limiting block 43 to enter, and the other side of the limiting groove 261 is used to prevent the limiting block 43 from continuing to rotate in the limiting groove 261.

[0061] When a thrust is applied to the abutment rod 26, rotating the outer sleeve 41 causes the inner sleeve 42 to rotate, allowing the corresponding limiting block 43 to enter the limiting groove 261. At this time, the limiting groove 261 limits the limiting block 43, and the outer sleeve 41 cannot drive the inner sleeve 42 to rotate. Continuing to rotate the outer sleeve 41 drives the inner sleeve 42 to move towards the pad block 2, applying a thrust to the abutment rod 26. This design is simple in structure and facilitates the quick insertion and abutment of the abutment rod 26.

[0062] Preferably, the outer sleeve 41 can only rotate relative to the connecting plate 3 and cannot move relative to the connecting plate 3 along the axis of the outer sleeve 41. The rotating structure placed between the outer sleeve 41 and the connecting plate 3 is common knowledge to those skilled in the art and will not be described in detail here.

[0063] In one embodiment, the outer sleeve 41 and the inner sleeve 42 are connected through each other at both ends, and the connecting plate 3 has a through hole at the position corresponding to the inner sleeve 42 for the inner sleeve 42 to pass through. With this design, the length of the abutment rod 26 can be designed to be long enough to increase the range of motion of the pad block 2.

[0064] Preferably, the outer sleeve 41 may be fixed with a polygonal rotating block adapted to a box wrench or open-end wrench, so as to facilitate the rotation of the outer sleeve 41 by means of a box wrench or open-end wrench.

[0065] In one embodiment, the template 1 is a steel template with reinforcing ribs 11, and adjacent steel templates are detachably connected by bolts.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0067] It should be noted that if the embodiments of the invention involve directional indicators (such as up and down), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0068] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B. Additionally, if the embodiments of the invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.

Claims

1. An adjustable steel column external concrete casting mold, characterized in that, include: Template (1) is provided in multiple pieces, distributed on each side of the steel column. The two ends of the template (1) extend outward, so that the overall length of the template (1) is greater than the standard length. The pad (2) is provided in two pieces, which are used to fit on both ends of the outside of the steel column before the template (1) is assembled, to limit the gap between the template (1) and the steel column, and to seal the gap between the two ends of the steel column and the template (1) during the pouring process, so as to prevent concrete from leaking from both ends of the steel column. Limiting components are used to limit the position of the corresponding steel column of the pad (2); A hanging plate (25) is provided on one side of the corresponding steel column end of the pad (2). One end of the hanging plate (25) is fixedly connected to the pad (2), and the other end is hooked to the end of the steel column and makes multiple points or surface contact with the end face of the steel column. The hanging plate (25) is used to control the distance between the corresponding steel column end of the pad (2). The limiting component includes two connecting plates (3) located at both ends of the steel column. The connecting plates (3) are detachably connected to the corresponding template (1). In the vertical direction, the connecting plates (3) are provided with a gap between themselves and the steel column for the hanging plate (25) to pass through. A connecting rod (26) is fixedly provided on one side of the corresponding connecting plate (3) of the pad (2). A through hole is provided on the connecting plate (3) for the connecting rod (26) to pass through. A pushing unit (4) is provided on the connecting plate (3). The pushing unit (4) is used to apply a pushing force to the connecting rod (26) and drive the pad (2) to move away from the connecting plate (3). It cooperates with the hanging plate (25) to limit the pad (2). The pushing unit (4) includes an outer sleeve (41) rotatably disposed on the connecting plate (3) at the corresponding positions of each abutment rod (26), and an inner sleeve (42) is spirally disposed inside the outer sleeve (41), and a limit block (43) is disposed inside the inner sleeve (42); Each abutment rod (26) is inserted into the corresponding inner sleeve (42). Each abutment rod (26) has multiple limiting grooves (261) that are adapted to the limiting block (43). Each limiting groove (261) is distributed along the length of the abutment rod (26). One side of the limiting groove (261) is open for the limiting block (43) to enter, and the other side of the limiting groove (261) is used to prevent the limiting block (43) from continuing to rotate in the limiting groove (261). When a thrust is applied to the abutting rod (26), rotating the outer sleeve (41) allows it to rotate relative to the inner sleeve (42), causing the corresponding limiting block (43) to enter the limiting groove (261). At this time, the limiting groove (261) limits the limiting block (43), and the outer sleeve (41) cannot drive the inner sleeve (42) to rotate. At this time, continue to rotate the outer sleeve (41) to drive the inner sleeve (42) to move towards the pad (2), thus applying a thrust to the abutting rod (26).

2. The adjustable steel column external concrete casting mold according to claim 1, characterized in that, The pad block (2) and the corresponding template (1) and the side of the steel column are respectively provided with a continuous ring-shaped sealing airbag (21). By inflating the sealing airbag (21), the gap between the template (1) and the steel column is raised between the template (1) and the steel column, so that the gap between the template (1) and the steel column is greater than the gap required during pouring. After the template (1) is assembled, the gap between the pad block (2) and the template (1) and the gap between the pad block (2) and the steel column are sealed.

3. The adjustable steel column external concrete casting mold according to claim 2, characterized in that, The pad (2) is provided with a gas storage bottle (22), which is connected to each sealing airbag (21) through a gas pipeline (23) to supply gas to each sealing airbag (21) and maintain the pressure in the sealing airbag (21) within a preset range.

4. The adjustable steel column external concrete casting mold according to claim 3, characterized in that, The gas pipeline (23) is also equipped with a vent valve (24) for releasing the gas inside the sealed airbag (21).

5. The adjustable steel column external concrete casting mold according to claim 3, characterized in that, Multiple gas storage cylinders (22) are provided, and multiple gas storage cylinders (22) are connected in series and connected to the gas pipeline (23) through one of the gas storage cylinders (22).

6. The adjustable steel column external concrete casting mold according to claim 3, characterized in that, The mounting plate (25) also serves as the mounting base for the gas cylinder (22).

7. The adjustable steel column external concrete casting mold according to claim 1, characterized in that, The outer sleeve (41) and the inner sleeve (42) are connected through both ends, and the connecting plate (3) has a through hole at the position of the inner sleeve (42) for the inner sleeve (42) to pass through.

8. The adjustable steel column external concrete casting mold according to claim 1, characterized in that, The template (1) is a steel template with reinforcing ribs (11). Adjacent steel templates are detachably connected by bolts.

Images