Curbstone side formwork and construction method

Abstract

The present application relates to a curbstone side formwork and construction method, belonging to the technical field of road construction. The application comprises an arc-shaped formwork and a connecting rod. Connectors that can reciprocate on the connecting rod are respectively provided on the outer walls of both ends of the arc-shaped formwork. The connecting rod is provided on the arc-shaped formwork. The two ends of the connecting rod are respectively connected to the two connecting rods by threaded engagement. The connecting rod can rotate around its own axis on the arc-shaped formwork. The two connecting rods can simultaneously move toward or away from each other along the axis of the connecting rod on the connecting rod as the connecting rod rotates. The curvature of the arc-shaped formwork changes on the connecting rod as the distance between the two connecting rods changes. The application has the effect of improving the demolding efficiency of the arc-shaped formwork.

Description

Technical Field

[0001] The present application relates to the field of road construction, and in particular to a curb side formwork template and a construction method. Background Art

[0002] During the road construction process, multiple curbstones are often set at the edge of the road to clarify the boundary of the road. At the same time, the curbstones are used to form a certain shape to increase the viewing experience of the road. At present, the shapes formed by the curbstones include not only straight lines parallel to the road, but also elliptical or circular shapes containing arcs.

[0003] When installing curbstones on the road, after placing the outer side of the curbstone towards the road, a template is usually installed on the inner side of the curbstone, and grouting is performed between the template and the inner side of the curbstone. After the concrete mortar solidifies, the template is removed to fix the position of the curbstone on the road.

[0004] However, when the curbstones are arranged in an arc shape, the adhesion area between the arc-shaped formwork and the concrete mortar is larger than the adhesion area between the long straight formwork whose length is consistent with the arc diameter and the cement mortar. The existing demoulding methods mostly involve knocking on the edge of the formwork to peel it off from the concrete mortar. The straight formwork can be removed from the concrete mortar by flipping it sideways after being knocked, while the arc-shaped formwork can only be demoulded by knocking it away from the concrete mortar. The arc-shaped formwork is difficult to flip sideways and there is friction between it and the ground, which makes the demoulding efficiency of the arc-shaped formwork low. Summary of the Invention

[0005] In order to improve the demoulding efficiency of the arc-shaped formwork, in a first aspect, the present application provides a curb side formwork formwork.

[0006] A curb side form template provided in the present application adopts the following technical solution: it includes an arc-shaped template and a connecting rod, and the outer walls at both ends of the arc-shaped template are respectively provided with connecting parts that can move back and forth on the connecting rod. The connecting rod is passed through the arc-shaped template, and the two ends of the connecting rod are respectively connected to the two connecting parts by threaded cooperation. The connecting rod can rotate around its own axis on the arc-shaped template, and the two connecting parts can move toward or away from each other simultaneously along the axis of the connecting rod on the connecting rod as the connecting rod rotates. The curvature of the arc-shaped template changes on the connecting rod as the distance between the two connecting parts changes.

[0007] By adopting the above technical solution, the arc formwork is first placed on the inner side of the arc formed by the curbstone, so that a space for pouring concrete mortar is formed between the inner side of the arc formed by the curbstone and the outer wall of the arc formwork. When the poured concrete mortar solidifies and needs to be demolded, the connecting rod is driven to rotate around its own axis, so that the connecting parts at both ends of the arc formwork simultaneously move on the connecting rod from the end of the connecting rod toward the center of the connecting rod, thereby changing the curvature of the arc formwork, so that the arc formwork is gradually demolded from both ends, and the contact area between the arc formwork and the concrete mortar is gradually reduced. When the arc formwork needs to be demolded by translation, it is easier to demold due to the reduced contact area with the concrete mortar, thereby improving the demolding efficiency.

[0008] Optionally, the connecting rod includes a hand-held part, a connecting part one and a connecting part two, the hand-held part is located between the connecting part one and the connecting part two, one end of the hand-held part is coaxially fixedly connected to the connecting part, the other end of the hand-held part is coaxially fixedly connected to the connecting part two, the connecting part one and the connecting part two are respectively connected to the two connecting parts on the arc-shaped template by threaded cooperation, and the threads on the connecting part one and the connecting part two have opposite rotation directions.

[0009] By adopting the above technical solution, the staff can rotate the connecting rod by holding the hand-held part, and the threads on the connection part one and the connection part two are rotated in opposite directions, so that the staff only needs to drive the hand-held part to rotate around its own axis to achieve the synchronous movement of the two ends of the arc template on the connection part one and the connection part two toward or away from the hand-held part.

[0010] Optionally, a reset assembly is provided on both connection part one and connection part two, and each reset assembly includes a limit plate, a reset block and a spring. The spring is located between the limit plate and the reset block, one end of the spring is connected to the limit plate, and the other end of the spring is connected to the reset block. The two limit plates are respectively installed at both ends of the hand-held part, and the two reset blocks are respectively mounted on connection part one and connection part two and can both slide on connection part one and connection part two. The two reset blocks respectively abut against the inner side walls of the arc template.

[0011] By adopting the above technical solution, when the hand-held part is not rotated, the spring is at its original length, and the reset block is in contact with the inner wall of the arc template. When the hand-held part starts to rotate, it will drive the connection part one and the connection part two to move and rotate respectively. At this time, the curvature of the arc template will change, and the length of the spring will also change. In the process of the spring restoring its original length, the reset block will always give the arc template a tendency to restore its original curvature, and the limit plate plays a protective role for the construction personnel when driving the hand-held part to rotate.

[0012] Optionally, a positioning groove is provided on a side of the limiting plate away from the handheld portion, and a side of the spring close to the limiting plate is connected to the positioning groove by plug-fitting.

[0013] By adopting the above technical solution, the positioning groove and the spring are plugged into each other, so that when the hand-held part drives the connecting part one and the connecting part two to rotate, the spring will not follow the movement and rotation of the hand-held part, so that the spring is only subjected to axial load during use, so that the spring will not be twisted, thereby playing a role in protecting the spring.

[0014] Optionally, a plurality of spacers are arranged at intervals on the arc template, and the plurality of spacers are distributed at intervals along the arc direction of the arc template. One end of the spacer is connected to the arc template, and the other end of the spacer is used to be inserted between two adjacent curbstones.

[0015] By adopting the above technical solution, the spacer ensures that there is sufficient width between two adjacent curbstones for concrete mortar to enter, thereby realizing the connection between the two adjacent curbstones. Multiple spacers ensure that the gaps between multiple adjacent curbstones remain consistent, thereby improving the accuracy of curbstone placement.

[0016] Optionally, a slot one is provided at one end of the partition plate close to the arc template, a slot two is provided on the arc template, a perforation is provided directly below the slot two, the width of the slot one is greater than the minimum distance between the slot two and the perforation, and after the slot one and the slot two are connected by plug-fitting, the partition plate can be rotated on the arc template from the outside of the Hu Ding template to the inside of the arc template.

[0017] By adopting the above technical solution, the spacer that does not need to be placed between two adjacent curbstones can be flipped from the outside of the curved formwork to the inside of the curved formwork until the end of the spacer away from the curved formwork abuts the ground. This allows the spacer to also play a certain supporting role for the curved formwork, reducing the deformation or displacement of the curved formwork due to the impact of concrete mortar on the curved formwork when pouring concrete mortar.

[0018] Optionally, the partition plate includes an inserting portion and a flipping portion, slot one is provided on the flipping portion, the inserting portion is inserted into the end of the connecting portion away from slot one, the inserting portion can slide on the flipping portion, and the end of the inserting portion away from the flipping portion is used to be inserted between two adjacent curbstones.

[0019] By adopting the above technical solution, the protruding length of the plug-in part on the flipping part can be adjusted so that the protruding length of the plug-in part on the flipping part can be adjusted according to the distance between the arc formwork and the curb. At the same time, after the flipping part is flipped to the inner side of the arc formwork on the arc formwork, the partition plate can abut against the ground, thereby achieving support for the arc formwork when pouring concrete mortar.

[0020] In a second aspect, the present application further provides a method for constructing a curbstone side formwork, comprising using the above-mentioned curbstone side formwork, and comprising the following steps:

[0021] S100: placing the arc template on the inner side of the arc-shaped curb, randomly selecting at least three positions on the arc template and measuring the distance between the selected positions and the side wall of the curb, and ensuring that the error between each measurement result and the design value is within the allowable range.

[0022] S200: pouring concrete mortar into the gap between the curb side wall and the curved formwork, and fixing the position of the curved formwork while pouring the cement mortar;

[0023] S300: After the concrete mortar solidifies, the connecting rod is driven to rotate around its own axis, so that the connecting piece drives both ends of the arc-shaped template to move toward the center of the connecting rod at the same time. The two ends of the arc-shaped template are gradually separated from the solidified concrete mortar, and then the entire arc-shaped template is demoulded from the concrete mortar.

[0024] S400: The connecting rod is driven in reverse to rotate around its own axis, so that the arc template gradually recovers its original curvature and waits for the next use.

[0025] In summary, this application has at least the following beneficial technical effects:

[0026] 1. By changing the interval between the two connecting parts on the curved formwork on the connecting rod, the curvature of the curved formwork is changed, which in turn drives the curved formwork to be demoulded from both ends, thereby gradually reducing the contact area between the curved formwork and the concrete mortar, making the curved formwork easier to demould, thereby improving the demoulding efficiency.

[0027] 2. By setting spacers at intervals on the curved template, the gap between two adjacent curbstones for filling concrete mortar can be kept consistent, thereby achieving the effect of reducing the position error of the curbstones when they are placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a three-dimensional schematic diagram of a curb side form template in use.

[0029] Figure 2 yes Figure 1 Schematic diagram of the main view.

[0030] Figure 3 yes Figure 2 Schematic diagram of the cross section taken along AA.

[0031] Explanation of the accompanying reference numerals: 1. Arc template; 2. Connecting rod; 3. Connecting piece; 4. Hand-held part; 5. Connecting part 1; 6. Connecting part 2; 7. Reset assembly; 8. Limiting plate; 9. Reset block; 10. Spring; 11. Positioning groove; 12. Spacer; 13. Slot 1; 14. Slot 2; 15. Perforation; 16. Flipping part; 17. Connecting part. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] Example 1:

[0034] This application implements 1 to disclose a curb side formwork template, referring to Figure 1 , including an arc-shaped template 1 and a connecting rod 2. Two connecting parts 3 are respectively provided at both ends of the side wall of the arc-shaped template 1 close to the curb. The connecting parts 3 can be nuts. The connecting parts 3 are fixedly connected to the arc-shaped template 1 by welding. The arc-shaped template 1 is a metal sheet made of titanium alloy, which enables the arc-shaped template 1 to have good elasticity. The two ends of the connecting rod 2 are respectively connected to the two connecting parts 3 by threaded cooperation after passing through the arc-shaped template 1.

[0035] The connecting rod includes a hand-held part 4, a connecting part 1 5 and a connecting part 2 6. The connecting part 1 5 and the connecting part 2 6 are respectively connected to the connecting part 3 on the arc template 1 by threaded cooperation. The hand-held part 4 is located between the connecting part 1 5 and the connecting part 2 6. One end of the hand-held part 4 is coaxially fixedly connected to the connecting part 1 5, and the other end of the hand-held part 4 is coaxially connected to the connecting part 2 6. This makes it possible that when the hand-held part 4 starts to rotate around the axis, the hand-held part 4 will drive the connecting part 1 5 and the connecting part 2 6 to rotate together, and the thread rotation direction on the connecting part 1 5 is opposite to the thread rotation direction on the connecting part 2 6. This makes it possible that when the hand-held part 4 drives the connecting part 1 5 and the connecting part 2 6 to rotate, the two ends of the arc template 1 begin to synchronously approach or move away from the hand-held part 4. When the distance between the two connecting parts 3 on the arc template 1 changes, the curvature of the arc template 1 also changes accordingly.

[0036] At both ends of the curved template 1 close to the curb, baffles that can abut against the curb are connected, so that when concrete mortar is poured between the curved template 1 and the curb, the concrete mortar will not leak easily.

[0037] Reference Figure 1 and Figure 2The two reset blocks 9 are respectively mounted on the connection part 1 5 and the connection part 2 6 and can slide axially on the connection part 1 5 or the connection part 2 6. The two reset blocks 9 always abut against the inner side walls of the two ends of the arc template 1 during the sliding process. When the spring 10 is at its original length, the inner side wall of the arc template 1 at its original curvature just abuts against the reset block 9.

[0038] A positioning groove 11 is provided on the side of the limit plate 8 away from the hand-held part 4, and the end of the spring 10 away from the reset block 9 is inserted into the positioning groove 11. The positioning groove 11 is a cylindrical groove, and the inner diameter of the positioning groove 11 is slightly larger than the outer diameter of the spring 10, which prevents the spring 10 from rotating easily when the hand-held part 4 rotates.

[0039] When the hand-held part 4 is rotated, the two ends of the arc-shaped template 1 are driven toward the hand-held part 4, and the spring 10 is gradually compressed. At this time, under the action of the springs 10 at both ends of the hand-held part 4, the contact between the reset block 9 and the inner wall of the arc-shaped template 1 is tighter, thereby making the thread engagement between the connection part 1 5 and the connection member 3 and the connection part 2 6 and the other connection member 3 tighter. At the same time, the construction personnel can also judge whether the arc-shaped template 1 has returned to its original curvature based on whether the spring 10 rebounds to its original length, so as to reduce the possibility of deformation of the arc-shaped template 1 due to not being in its original curvature for a long time when the arc-shaped template 1 is not needed.

[0040] A plurality of spacers 12 are also provided on the upper side of the arc-shaped template 1. The plurality of spacers 12 are evenly spaced along the arc direction of the arc-shaped template 1. One end of the spacer 12 is installed on the arc-shaped template 1, and the other end of the spacer 12 can be inserted into the gap between two adjacent curbstones so that the gaps between the multiple curbstones that form a circular shape remain consistent, thereby achieving the effect of improving the placement accuracy of the respective curbstones that form the arc shape.

[0041] Reference Figure 1 and Figure 3Furthermore, a slot 13 is provided at one end of the spacer 12 close to the arc template 1, and a slot 2 14 is provided on the upper side of the arc template 1. The thickness of the spacer 12 is adapted to the width of the slot 2 14. The slot 13 can be connected to the slot 2 14 by plug-in fitting so that the spacer 12 is fixed on the arc template 1.

[0042] Furthermore, a through-hole 15 is provided directly below the second slot 14. The through-hole 15 is a waist-shaped hole extending in a direction perpendicular to the ground. The width of the first slot 13 is not only greater than the thickness of the arc template 1, but also greater than the minimum distance between the second slot 14 and the through-hole 15. This enables the spacer 12 to be flipped when it is plugged into the arc template 1, that is, the spacer 12 that was originally plugged into between two adjacent curbstones can be flipped to the inside of the connecting plate and abut against the ground. This enables multiple spacers 12 to be plugged between two adjacent curbstones according to the arrangement of the curbstones. If there are extra spacers 12, this can be achieved by rotating the spacer 12 so that the spacer 12 is rotated from the outside of the arc template 1 to the inside and abuts against the ground, thereby providing auxiliary support for the arc template 1.

[0043] The spacer 12 includes a plug-in portion 17 and a flip portion 16, wherein a slot 13 is provided on the flip portion 16 at an end away from the plug-in portion 17, the plug-in portion 17 is plugged into the flip portion 16 and can slide along the length direction of the flip portion 16, and the end of the plug-in portion 17 away from the flip portion 16 is used to be plugged between two adjacent curbstones. This allows the staff to adjust the protruding length of the plug-in portion 17 on the flip portion 16 so that the plug-in portion 17 can be suitable for different distances between the outer side of the arc formwork 1 and the inner side of the curbstone. At the same time, it also enables the flip portion 16 to support the inner side of the arc formwork 1 after flipping, thereby reducing the situation where the position of the arc formwork 1 changes due to the impact of the concrete mortar when pouring concrete mortar.

[0044] The implementation principle of the embodiment of the present application is: first arrange multiple adjacent curbstones that form an arc shape, and adjust the distance between the outer side of the arc template 1 and the inner side of the curbstone, and respectively insert the partition plates 12 at the corresponding positions into the gaps between the two adjacent curbstones, adjust the placement of the curbstones so that the two adjacent curbstones are respectively pressed against the partition plates 12, and the remaining partition plates 12 are first flipped over so that the partition plates 12 are in contact with the ground inside the arc template 1, and then the concrete mortar is poured for the first time. After the first layer of concrete mortar solidifies, the partition plates 12 inserted between the adjacent curbstones are taken out and flipped over so that they are in contact with the ground inside the arc template 1, and then poured for the second time so that the concrete mortar can fill the space between the arc template 1 and the curbstone.

[0045] After all the concrete mortar has solidified, all the spacers 12 are flipped from the inside of the arc formwork 1 back to the outside of the arc formwork 1 so that they overlap in the gaps of the curbstones. Then, by rotating the connecting rod 2, the two ends of the arc formwork 1 move from the ends of the connecting rod 2 to the middle. In this process, the arc formwork 1 is gradually demolded, and the contact area between the arc formwork 1 and the solidified concrete mortar gradually decreases. When the contact area between the arc formwork 1 and the concrete mortar is reduced to a certain extent, the arc formwork 1 can be directly driven to move horizontally in the direction away from the concrete mortar to achieve complete demolding of the arc formwork 1.

[0046] Example 2:

[0047] Example 2 of the present application further provides a method for constructing a curb side formwork, which uses the curb side formwork provided in Example 1 above and includes the following steps:

[0048] S100: placing the arc template on the inner side of the arc-shaped curb, randomly selecting at least three positions on the arc template and measuring the distance between the selected positions and the side wall of the curb, and ensuring that the error between each measurement result and the design value is within the allowable range.

[0049] S200: pouring concrete mortar into the gap between the curb side wall and the curved formwork, and fixing the position of the curved formwork while pouring the cement mortar;

[0050] S300: After the concrete mortar solidifies, the connecting rod is driven to rotate around its own axis, so that the connecting piece drives both ends of the arc-shaped template to move toward the center of the connecting rod at the same time. The two ends of the arc-shaped template are gradually separated from the solidified concrete mortar, and then the entire arc-shaped template is demoulded from the concrete mortar.

[0051] S400: The connecting rod is driven in reverse to rotate around its own axis, so that the arc template gradually recovers its original curvature and waits for the next use.

[0052] The allowable error in step S100 is within a range of -2 mm to 2 mm.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A curb side formwork, characterized by: The invention comprises an arc-shaped template (1) and a connecting rod (2), wherein the outer side walls at both ends of the arc-shaped template (1) are respectively provided with connecting pieces (3) that move back and forth on the connecting rod (2), the connecting rod (2) is passed through the arc-shaped template (1), and the two ends of the connecting rod (2) are respectively connected to the two connecting pieces (3) on the arc-shaped template (1) by means of threaded engagement, the connecting rod (2) rotates around its own axis on the arc-shaped template (1), and the two connecting pieces (3) move back and forth along with the arc-shaped template (1). The rotation of the connecting rod (2) causes the connecting rod (2) to move toward or away from each other simultaneously along the axis of the connecting rod (2). The curvature of the arc template (1) changes on the connecting rod (2) as the distance between the two connecting members (3) changes. A plurality of spacer plates (12) are arranged on the arc template (1) at intervals. The plurality of spacer plates (12) are evenly spaced along the curvature of the arc template (1). One end of the spacer plate (12) is connected to the arc template (1). The other end of the spacer (12) is used to be inserted between two adjacent curbstones. The spacer (12) is provided with a slot 1 (13) at one end close to the arc template (1). The arc template (1) is provided with a slot 2 (14). A perforation (15) is provided directly below the slot 2 (14). The slot 1 (13) and the slot 2 (14) are connected by plug-in fitting. The spacer (12) is inserted from the arc template (1) on the arc template (1). The outer side is rotated to the inner side of the arc template (1), thereby playing an auxiliary supporting role for the arc template (1); the spacer (12) includes a plug-in portion (17) and a flip portion (16); the slot one (13) is provided on the flip portion (16); the plug-in portion (17) is plugged into an end of the flip portion (16) away from the slot one (13); the plug-in portion (17) slides on the flip portion (16); and the plug-in portion (17) is used to be plugged between two adjacent curbstones.

2. The curb side formwork according to claim 1, characterized in that: The connecting rod (2) comprises a hand-held portion (4), a connecting portion 1 (5) and a connecting portion 2 (6), wherein the hand-held portion (4) is located between the connecting portion 1 (5) and the connecting portion 2 (6), one end of the hand-held portion (4) is coaxially fixedly connected to the connecting portion 1 (5), and the other end of the hand-held portion (4) is coaxially fixedly connected to the connecting portion 2 (6), and the connecting portion 1 (5) and the connecting portion 2 (6) are respectively connected to the two connecting members (3) on the arc-shaped template (1) by threaded engagement, and the threaded directions of the connecting portion 1 (5) and the connecting portion 2 (6) are opposite.

3. The curb side formwork according to claim 2, characterized in that: A reset assembly (7) is provided on both the connecting part 1 (5) and the connecting part 2 (6), and each reset assembly (7) includes a limit plate (8), a reset block (9) and a spring (10). The spring (10) is located between the limit plate (8) and the reset block (9), one end of the spring (10) is connected to the limit plate (8), and the other end of the spring (10) is connected to the reset block (9). The two limit plates (8) are respectively installed at the two ends of the handheld part (4). The two reset blocks (9) are respectively mounted on the connecting part 1 (5) and the connecting part 2 (6) and both slide on the connecting part 1 (5) and the connecting part 2 (6). The two reset blocks (9) are respectively in contact with the inner side wall of the arc template (1).

4. The curb side formwork according to claim 3, characterized in that: A positioning groove (11) is provided on a side of the limiting plate (8) away from the handheld portion (4), and a side of the spring (10) close to the limiting plate (8) is connected to the positioning groove (11) by plug-fitting.

5. A method for constructing a curbstone side formwork, using a curbstone side formwork according to any one of claims 1 to 4, characterized in that: The steps include: S100: placing the arc template (1) on the inner side of a curbstone formed into an arc shape, randomly selecting at least three positions on the arc template (1) and measuring the distances between the selected positions and the sidewalls of the curbstone, and ensuring that the errors between the respective measurement results and the design values ​​are within an allowable range; S200: pouring concrete mortar into the gap between the curb side wall and the arc-shaped template (1), and fixing the position of the arc-shaped template (1) when pouring the cement mortar; S300: After the concrete mortar solidifies, the connecting rod (2) is driven to rotate around its own axis, so that the connecting member (3) drives both ends of the arc-shaped template (1) to move toward the center of the connecting rod (2) at the same time, and the two ends of the arc-shaped template (1) gradually separate from the solidified concrete mortar, and then the entire arc-shaped template (1) is demoulded from the concrete mortar; S400: driving the connecting rod (2) in reverse to rotate around its own axis, so that the arc template (1) gradually recovers its original curvature and waits for the next use.

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