Curb slipform construction device

Abstract

The present invention discloses a curb slipform construction device, comprising a vehicle body, a film frame provided on the vehicle body, an inverted U-shaped portion, an inclined transition portion, and a flat plate portion provided on the film frame in sequence, the inclined transition portion connecting the inverted U-shaped portion and the flat plate portion via an inclined surface; and a rotating connection mechanism for connecting a film roll, wherein when the vehicle body moves forward, the film pulled out by the film roll passively passes from the flat plate portion through the inclined transition portion into the inverted U-shaped portion, and the inverted U-shaped portion slides onto the concrete curb to achieve the laying of the film. The curb slipform construction device provided by the present invention connects the flat plate portion and the inverted U-shaped portion via the inclined transition portion, the film is unfolded on the flat plate portion, and gradually transitions from the inclined transition portion to the inverted U-shaped portion, so that the film is always in an unfolded state, reducing the probability of wrinkles in the film.

Description

Technical Field

[0001] The invention relates to road construction technology, in particular to a curbstone slipform construction device. Background Art

[0002] Curbstones refer to the markers on the edge of the road used to divide the road from other structures. Traditional curbstones are made of marble and spliced ​​together in sections. Obviously, this method is too costly, and then concrete curbstones were formed. In recent years, there are also curbstone slipform construction devices, which can construct the entire curbstone in one go, which is efficient, fast and low-cost.

[0003] For example, the invention patent entitled "A Curb Slipform Machine," with authorization publication number CN104911981B and publication date June 16, 2017, includes a machine body and a frame mounted on the machine body, a material conveying device, a material forming device, a power unit, a traveling device, a leveling device, a lifting device, and a traction device connected to the machine body. The curb slipform machine also includes a remote control device, a steering device, and a high-pressure cleaning device mounted on the traction device. The remote control device includes a control panel and a controller, which are operable to control the lifting device via electrical signals. The steering device includes a steering power hydraulic pump mounted within the traction device, which is connected to a hydraulic steering system, a steering hydraulic valve group, and an engine for the traction device to achieve hydraulic power steering or remote control steering. The generator generates a 380V voltage to power the AC motor, and the transmission transmits power to the material pusher and vibrating rod vibration device via chains. The start and stop of the engine and generator are controlled by a main switch mounted on the machine body.

[0004] For curbstones constructed with slipforms, newly constructed curbstones still need maintenance. The existing technology lays a layer of film on the constructed curbstones for maintenance and protection. Some equipment directly arranges a film laying device on the slipform device, such as CN110453569B, CN202110659339.2, etc. The shortcomings of these film laying mechanisms in the existing technology are that a straight film needs to be laid flat on a curved curbstone. The adaptation effect of the existing patented adaptation structure is not good, and there are many wrinkles on the film. Summary of the Invention

[0005] The object of the present invention is to provide a curbstone slipform construction device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A curb slipform construction device comprises a vehicle body, a film frame is provided on the vehicle body, an inverted U-shaped portion, an inclined transition portion and a flat plate portion are sequentially provided on the film frame, and the inclined transition portion connects the inverted U-shaped portion and the flat plate portion through an inclined surface;

[0008] It also includes a rotating connection mechanism for connecting the film roll. When the vehicle body moves forward, the film pulled out by the film roll passively passes from the flat portion through the inclined transition portion into the inverted U-shaped portion, and the inverted U-shaped portion slides onto the concrete curb to achieve the laying of the film.

[0009] In the above-mentioned curb slipform construction device, the rotating connection mechanism is arranged on the top surface of the flat plate portion, and the flat plate portion is provided with a strip hole. The film is pulled out from the rotating connection mechanism through the strip hole and enters the bottom surface of the flat plate portion.

[0010] The above-mentioned curb slipform construction device also includes an abutment assembly, which includes an abutment plate swingably connected to the flat plate portion, and a first elastic member is also provided between the abutment plates, and the end of the abutment plate abuts on the film pulled out from the rotating connection mechanism.

[0011] In the above-mentioned curb slipform construction device, a rolling roller is provided at the end of the abutment plate, and the rolling roller abuts against the film pulled out from the rotating connection mechanism.

[0012] In the above-mentioned curb slipform construction device, the rotating connection structure is a damping rotating cylinder, the outer circle of the damping rotating cylinder includes a plurality of arc-shaped parts spliced ​​in sequence, and a second elastic part is connected between each of the arc-shaped parts.

[0013] The above-mentioned curb slipform construction device also includes an edge extrusion assembly, which includes two extrusion wheel discs. The two extrusion wheel discs are arranged one by one on the outer sides of the two side plates of the inverted U-shaped part, and the extrusion wheel discs are used to extrude the film exposed at the edge of the inverted U-shaped part onto the ground.

[0014] In the above-mentioned curb slipform construction device, the central axis of the extrusion wheel is rotatably connected to a base block, the base block is vertically movably connected to the vehicle body, and a third elastic member is further provided between the base block and the vehicle body.

[0015] The above-mentioned curb slipform construction device, the edge extrusion assembly also includes a baffle plate, which is arranged at an angle relative to the side plate, and is arranged on the rear side of the extrusion wheel. The baffle plate is used to guide the excess concrete on the bottom side of the concrete curb to the edge part of the film.

[0016] In the above-mentioned curb slipform construction device, the top of the material retaining plate is fitted with the side plate, and the bottom of the material retaining plate and the side plate form a triangular or arc-shaped shaping space.

[0017] In the above-mentioned curb slipform construction device, the extrusion wheel is arranged obliquely relative to the side plate, and the lower edge of the extrusion wheel is located directly below the side plate.

[0018] In the above technical solution, the curb slipform construction device provided by the present invention connects the flat plate portion and the inverted U-shaped portion through a sloped transition portion. The film is unfolded on the flat plate portion and gradually transitions from the sloped transition portion to the inverted U-shaped portion, so that the film is always in an unfolded state, reducing the probability of wrinkles in the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic structural diagram of a curbstone slipform construction device provided in an embodiment of the present invention;

[0021] Figure 2 A side view of a portion of a film holder provided by an embodiment of the present invention;

[0022] Figure 3 A bottom view of a portion of a film holder provided in an embodiment of the present invention;

[0023] Figure 4 A schematic structural diagram of a damping rotating cylinder provided in another embodiment of the present invention;

[0024] Figure 5 A schematic diagram showing the positions of the extrusion wheel and the baffle plate provided in another embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the partial positions of the inverted U-shaped portion and the baffle plate provided in another embodiment of the present invention;

[0026] Figure 7 A schematic structural diagram of a film holder provided in another embodiment of the present invention;

[0027] Figure 8 A partial cross-sectional view of a sloped transition portion provided in accordance with another embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1. Car body; 2. Film frame; 3. Inverted U-shaped portion; 4. Inclined transition portion; 5. Flat portion; 6. Rotating connection mechanism; 7. Abutment plate; 8. Rolling roller; 9. Damping rotating cylinder; 10. Extrusion wheel; 11. Base block; 12. Third elastic member; 13. Material baffle; 14. Shaping space; 15. Vacuum pump; 16. Intake duct; 17. Exhaust duct; 18. Branch pipe; 19. Cavity; 20. Suction micropore; 21. Strip hole. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The limitations on the directional words front, back, left, right, up, and down in the various embodiments of the present invention are based on the perspective of the vehicle body and are understood in accordance with common sense in daily life. The vehicle body moves forward, backward, and the left, right, up, and down of the vehicle body, etc. This limitation should be regarded as a limitation for the convenience of description, and those skilled in the art should not understand it as a limitation of rights.

[0032] like Figure 1-8 As shown, an embodiment of the present invention provides a curb slipform construction device, including a vehicle body 1, on which a film rack 2 is provided, and on which an inverted U-shaped portion 3, an inclined transition portion 4 and a flat portion 5 are sequentially provided, wherein the inclined transition portion 4 is connected to the inverted U-shaped portion 3 and the flat portion 5 through an inclined surface; and further includes a rotating connection mechanism 6 for connecting a film roll, wherein when the vehicle body 1 moves forward, the film pulled out by the film roll passively enters the inverted U-shaped portion 3 from the flat portion 5 through the inclined transition portion 4, and the inverted U-shaped portion 3 is slidably sleeved on the concrete curb to realize the laying of the film.

[0033] Specifically, the curb slipform construction device provided in this embodiment refers to a device for laying a film on a freshly cast concrete curb. It has various forms. One body 1 is the curb cast body 1, and the film frame 2 is connected to the body 1 through a bracket. The other body 1 is a separate body 1, which follows the rear side of the concrete curb cast body 1 and actively or passively follows the cast body 1. The vehicle body 1 walks on one side of the concrete curb, and the film frame 2 is connected to the vehicle body 1 through a bracket. The film frame 2 is provided with an inverted U-shaped portion 3, an inclined transition portion 4 and a flat plate portion 5, wherein, from front to back, there are the flat plate portion 5, the inclined transition portion 4 and the inverted U-shaped portion 3, wherein the flat plate portion 5 is a horizontal plate with a plane thereon, and the inverted U-shaped portion 3 is adapted to the shape of the concrete curb. The concrete curb is a long strip, and its radial cross-section is a rectangle, a square or a similar shape. The inverted U-shaped portion 3 is just buckled on the concrete curb, and the inclined transition portion 4 is used for transition connection to the flat The plate portion 5 and the inverted U-shaped portion 3, as described above, the inverted U-shaped portion 3 includes a top plate and two side plates, the two side plates are arranged perpendicular to the top plate, and correspondingly, the inclined surface transition portion 4 also includes three connected surfaces, a top surface and two inclined surfaces, the top surface connects the top plate and the middle part of the flat plate portion 5, and the inclined surface connects the side of the flat plate portion 5 and the side plates, where the inclined surface is a surface with a gradually changing inclination, and it is obvious that one side is approximately horizontally connected to the flat plate portion 5, and the other side is approximately vertically connected to the side plates, and the flat plate portion 5 is gradually transitioned to the inverted U-shaped portion 3 through the inclined surface transition portion 4, so that the film gradually deforms without wrinkling. In addition, this embodiment also includes a rotating connection mechanism 6 for connecting the film roll, the rotating connection mechanism 6 includes a rotating shaft arranged on the film frame 2, the film is wound on the film roll, and the film roll is sleeved on the rotating shaft, so that the film roll can rotate, and the process of rotation allows the film to be continuously pulled out from the film roll. In this embodiment, the film roll is arranged just in front of or just above the flat plate portion 5 , and the film pulled out from the film roll can be pulled in a straight line and attached to the flat plate portion 5 .

[0034] The curb slipform construction device provided in this embodiment is used by first manually pulling out the film from the film roll and passing it through the flat plate portion 5, the inclined transition portion 4 and the inverted U-shaped portion 3 in sequence, and then fitting it to the concrete curb in the inverted U-shaped portion 3, thereby manually fitting the end of the film to the end of the newly cast concrete curb. Subsequently, due to the forward movement of the vehicle body 1, the end of the film is fixed, and the fixed part of the film has a tensile force. The forward movement of the vehicle body 1 causes the film to be continuously pulled out from the film sleeve, and pass through the flat plate portion 5, the inclined transition portion 4 in sequence into the inverted U-shaped portion 3 and fit onto the concrete curb. During the process, since the film is always in a tensile state, it is easier to be in an unfolded state. Moreover, the smooth transition of the flat plate portion 5, the inclined transition portion 4 and the inverted U-shaped portion 3 can also ensure that the film is in a smooth unfolded state, thereby reducing wrinkles. That is, when the vehicle body 1 moves forward, the film pulled out by the film roll passively passes from the flat portion 5 through the inclined transition portion 4 into the inverted U-shaped portion 3, and the inverted U-shaped portion 3 slides onto the concrete curb to achieve film laying.

[0035] The curb slipform construction device provided by an embodiment of the present invention connects the flat plate portion 5 and the inverted U-shaped portion 3 through the inclined transition portion 4. The film is unfolded on the flat plate portion 5 and gradually transitions from the inclined transition portion 4 to the inverted U-shaped portion 3. In this way, the film is always in an unfolded state, reducing the probability of wrinkles in the film.

[0036] In another embodiment provided by the present invention, the rotating connection mechanism 6 is arranged on the top surface of the flat plate portion 5, and a strip hole 21 is provided on the flat plate portion 5. The film is pulled out from the rotating connection mechanism 6 through the strip hole 21 and enters the bottom surface of the flat plate portion 5, that is, the film roll is arranged above the flat plate portion 5, and the film is attached to the bottom surface of the flat plate portion 5. Such a structure is more integrated, the pulling is smooth and the volume is small.

[0037] In another embodiment provided by the present invention, it also includes an abutment assembly, which includes an abutment plate 7 swingingly connected to the flat plate portion 5, and a first elastic member is further provided between the abutment plate 7 and the abutment plate 7. The first elastic member can be a torsion spring, which is directly sleeved on the swinging axis of the abutment plate 7, or the first elastic member is a tension spring, and the two ends of the tension spring are respectively connected to the abutment plate 7 and the flat plate portion 5, or the two ends of the tension spring are respectively connected to the abutment plate 7 and the film frame 2. The action of the first elastic member makes the abutment plate 7 be in an initial position and provides an elastic resistance when swinging. The end of the abutment plate 7 abuts on the film pulled out from the rotating connection mechanism 6, so that the film is abutted by the abutment plate 7, thereby providing a tension to the film, improving its unfolding degree, and reducing the probability of wrinkles.

[0038] Preferably, a rolling roller 8 is provided at the end of the abutment plate 7, and the rolling roller 8 abuts against the film pulled out from the rotating connection mechanism 6. The rolling roller 8 can passively roll during the film pulling process, thereby reducing the wear on the film while ensuring the provision of tension.

[0039] In another embodiment provided by the present invention, the rotating connection structure is a damping rotating cylinder 9, which is the rotating shaft on which the film roll is sleeved. The outer circle of the damping rotating cylinder 9 includes a plurality of arc-shaped parts spliced ​​in sequence, and there are at least two arc-shaped parts, such as two semi-cylinders. A second elastic part is connected between each of the arc-shaped parts, so that each arc-shaped part can be squeezed and moved close to each other. The effect of such a setting is that when the film roll is sleeved on the damping rotating cylinder 9, it will squeeze each arc-shaped part so that the second elastic part will accumulate force and deform, so that the damping rotating cylinder 9 provides a rotational friction force to the film roll, so that a relatively large pulling force is required to pull the film roll to rotate, thereby preventing the film roll from rotating too freely, and ensuring that the film pulled out from the end of the film roll has a certain pulling force.

[0040] In another embodiment provided by the present invention, an edge extrusion assembly is further included, wherein the edge extrusion assembly includes two extrusion wheels 10, which are disc-shaped and have thin edges. The two extrusion wheels 10 are arranged one by one on the outer sides of the two side plates of the inverted U-shaped portion 3, that is, one extrusion wheel 10 is provided on the outer side of each side plate. At this time, the width of the film is pre-selected to be greater than the width of the two side plates of the concrete curb plus the width of the top plate, that is, for the inverted U-shaped portion 3, the edge of the film will extend to the outside, and for the concrete curb As for the curb, the film will not only be completely laid, but its edge will extend to the ground on both sides of the concrete curb. Accordingly, the extrusion wheel 10 is used to squeeze the part of the film exposed at the edge of the inverted U-shaped portion 3 onto the ground. The central axis of the extrusion wheel 10 is rotated and connected to the side plate, or is rotated and connected to the film rack 2. In this way, when the vehicle body 1 moves forward, the extrusion wheel 10 passively rolls to squeeze the film onto the ground. This has two functions. First, it assists the film in unfolding, and second, it fixes the edge of the film to a certain extent to reduce the probability of its subsequent fluttering.

[0041] Furthermore, the central axis of the extrusion wheel 10 is rotatably connected to a base block 11, and the base block 11 is vertically movably connected to the vehicle body 1. A third elastic member 12 is also provided between the base block 11 and the vehicle body 1. For example, the base block 11 is connected to the vehicle body 1 or the film frame 2 through a vertical telescopic rod, and a spring (third elastic member 12) is sleeved on the telescopic rod. The role here is, firstly, the conditions of the road outside the concrete curb are different, so the base block 11 can move up and down to adapt to different conditions, and secondly, a prestress is provided to the extrusion wheel 10.

[0042] Furthermore, the edge extrusion assembly further includes a baffle plate 13, which is arranged obliquely relative to the side panel. The inclination here means that one end of the baffle plate 13 is close to the side panel and the other end is far from the side panel. Moreover, the baffle plate 13 is arranged on the rear side of the extrusion wheel 10, the side close to the extrusion wheel 10 is far from the side panel, and the side away from the extrusion wheel 10 is close to the side panel. In this way, a triangular space is formed between the baffle plate 13 and the side panel. In the existing concrete curb casting, in order to ensure sufficient casting, the curb bottom has Part of the excess concrete emerges, which is still in a fluid state. In the prior art, these excess concretes are arranged in the form of whole strips and are partially irregularly along the bottom of the curb. However, in this embodiment, the baffle plate 13 redirects this part of the discarded concrete to the bottom of the concrete curb. Moreover, because the front extrusion wheel 10 has just pressed down the edge of the film, this part of the concrete covers the edge of the film, thereby achieving complete fixation of the film. That is, the baffle plate 13 is used to guide the excess concrete on the bottom side of the concrete curb to the edge of the film.

[0043] Furthermore, the top of the rear side of the retaining plate 13 is in contact with the side panel. The rear side, i.e., the side where the retaining plate 13 is closest to the side panel, forms a triangular or arc-shaped shaping space 14 with the bottom of the retaining plate 13 and the side panel. The rear side is the shaping space 14 for excess concrete. This shaping space 14 forms a triangular or arc-shaped chamfered structure at the bottom of the concrete curbstone, making it more aesthetically pleasing.

[0044] Furthermore, the extrusion wheel 10 is arranged at an angle relative to the side panel, that is, the extrusion wheel 10 is not arranged vertically but at an angle, and the lower edge of the extrusion wheel 10 is located directly below the side panel, thereby ensuring that the edge of the film is subsequently pressed under the concrete and is not squeezed out by the concrete.

[0045] In another embodiment provided by the present invention, a vacuum suction mechanism is further included, wherein the vacuum suction mechanism includes a vacuum pump 15, and the air inlet of the air inlet pipe 16 of the vacuum pump 15 is connected to the flat plate portion 5 and / or the inclined transition portion 4. At this time, a cavity 19 is provided inside the plate of the inclined transition portion 4 and the flat plate portion 5, and at the same time, a plurality of suction micropores 20 are provided on the inclined transition portion 4 and the flat plate portion 5 facing the side array to which the film is bonded, and each of the suction holes is connected to the cavity 19, and the air inlet of the air inlet pipe 16 is connected to the cavity 19. In this way, a vacuum is formed in each of the cavities 19 and the suction micropores 20 by the vacuum pump 15, so that the film is more tightly bonded to the inclined transition portion 4 and the flat plate portion 5, further reducing the probability of wrinkles.

[0046] Furthermore, the side panels and top panel of the inverted U-shaped portion 3 can also be constructed in the same manner as the bevel transition portion 4 and the flat plate portion 5, that is, a cavity 19 is provided inside, and a plurality of exhaust micropores are provided in an array facing the side surface with the film. The exhaust micropores are connected to the cavity 19 and can be structurally identical. However, the exhaust pipe 17 of the vacuum pump 15 is connected to the cavity 19 of the inverted U-shaped portion 3. The function of this is to uniformly apply pressure to the film in this portion of the film so that it fits tightly and evenly on the concrete curb, squeezing out the air between the film and the concrete curb, and improving the adhesion. It should be noted that the connection between the inverted U-shaped portion 3 and the bevel transition portion 4 may form a phenomenon where one part is extracting air while the other part is exhausting air. This is a phenomenon in the local connection area and has no significant impact on the overall extraction and exhaust. Since the air suction micropores 20 are relatively small, such as a radial dimension of a few millimeters, the affected area is relatively small.

[0047] Furthermore, a branch pipe 18 can be provided on the air intake pipe 16, and a valve plate is provided on the pipe buckle of the branch pipe 18. The valve plate is rotatably connected to the pipe port, and a torsion spring is provided on the rotating shaft of the valve plate. That is, when the pressure formed by the negative pressure of the branch pipe 18 is less than the resistance of the torsion spring, the valve plate is closed under the action of the torsion spring. When the pressure formed by the negative pressure is greater than the resistance of the torsion spring, the valve plate drives the torsion spring to rotate and open, and the branch pipe 18 starts to take in air. There are two functions here. First, it controls the suction pressure of the inclined transition part 4 and the flat part 5 on the film within a controllable range to ensure that the film can flow smoothly. The branch pipe 18 opens, and the maximum negative pressure that can be extracted is limited by the torsion spring. The maximum negative pressure can be controlled based on the selection of the torsion spring. Secondly, the air supply of the inverted U-shaped portion 3 is guaranteed. If the film fits too tightly, the vacuum pump 15 may not be able to absorb enough air. The air supply of the vacuum pump 15 is guaranteed by the branch pipe 18, thereby ensuring that enough air is in the inverted U-shaped portion 3 to squeeze the film, and the squeezing force is uniform, which does not cause large deformation of the newly poured concrete curbstone.

[0048] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A curb slipform construction device, comprising a vehicle body, characterized in that: The vehicle body is provided with a film cover frame, and the film cover frame is provided with an inverted U-shaped portion, an inclined transition portion and a flat plate portion in sequence, and the inclined transition portion connects the inverted U-shaped portion and the flat plate portion through an inclined surface; The vehicle also includes a rotating connection mechanism for connecting a film roll. When the vehicle body moves forward, the film pulled out of the film roll is passively moved from the flat portion through the inclined transition portion into the inverted U-shaped portion. The inverted U-shaped portion is slidably sleeved on the concrete curb to achieve film laying. The cam is connected to the outer edge of the U-shaped portion by a spring, and the cam is connected to the outer edge of the U-shaped portion by a spring.

2. The curbstone slipform construction device according to claim 1, characterized in that: The rotating connection mechanism is arranged on the top surface of the flat plate portion. The flat plate portion is provided with a strip hole. The film is pulled out from the rotating connection mechanism, passes through the strip hole and enters the bottom surface of the flat plate portion.

3. The curbstone slipform construction device according to claim 2, characterized in that: It also includes an abutment assembly, which includes an abutment plate swingably connected to the flat plate portion, a first elastic member is provided between the abutment plates, and an end portion of the abutment plate abuts against the film pulled out from the rotating connection mechanism.

4. The curbstone slipform construction device according to claim 3, characterized in that: A rolling roller is provided at the end of the abutting plate, and the rolling roller abuts against the film pulled out from the rotating connection mechanism.

5. The curbstone slipform construction device according to claim 2, characterized in that: The rotating connection structure is a damping rotating cylinder, the outer circle of which includes a plurality of arc-shaped parts spliced ​​in sequence, and a second elastic part is connected between each of the arc-shaped parts.

6. The curbstone slipform construction device according to claim 1, characterized in that: The extrusion wheel disc is arranged obliquely relative to the side plate, and the lower edge of the extrusion wheel disc is located directly below the side plate.

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