Reusable fabricated precast concrete pavement slab

Abstract

The utility model relates to the technical field of concrete pavement slabs, in particular to a reusable assembly type precast concrete pavement slab which comprises a concrete formwork, adjusting frames are arranged on the two sides of the interior of the concrete formwork, and symmetrical connecting plates are vertically and rotationally arranged on the opposite sides of the two adjusting frames. A push plate is rotationally arranged on the opposite sides of the connecting plates, a first screw is rotationally arranged on one side of the push plate, one end of the first screw extends to the outside of the concrete formwork and is in threaded connection with the concrete formwork, a worm is rotated to drive a worm wheel and a rotating rod to rotate, and meanwhile first bevel gears at the two ends of the rotating rod can also rotate; and when the second screw rotates, extension blocks in threaded connection with the second screw can be driven to move towards the outer portion of the adjusting frame, the four extension blocks move outwards, at the moment, a cross shape is defined by the adjusting frame, a connecting plate and a push plate, and cross-shaped concrete can be conveniently poured.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete road plate technical field, concretely relates to a reusable assembled prefabricated concrete road panel. BACKGROUND

[0002] The prefabricated assembled cement concrete road surface is the road surface that the prefabricated cement concrete panel is assembled on the base layer, has the advantages such as fast construction speed, guaranteed quality, reusable and easy to dismantle and repair.

[0003] Chinese patent authorized announcement No. CN221740791U discloses a temporary road surface recyclable assembled prefabricated concrete road panel, which comprises a panel body and a rigid edge-protecting frame wrapped around the panel body, the panel body comprises a concrete body and a steel mesh embedded in the concrete body, the upper surface of the rigid edge-protecting frame is flush with the upper surface of the panel body, the lower surface of the rigid edge-protecting frame is flush with the lower surface of the panel body, and the rigid edge-protecting frame is fixedly connected with the supporting steel bars. The prefabricated concrete road panel utilizes the edge-protecting frame to protect the four sides of the road panel, thereby effectively solving the problem of wear and tear of the existing prefabricated panel caused by edge collision and friction.

[0004] Although the above-mentioned device can protect the prefabricated panel while realizing its recycling, due to the limitation of the shape of the prefabricated panel, only a rectangular structure can be formed when pouring concrete. However, the concrete formwork for road surface has various requirements, such as polygonal design, which can enhance the stability and bearing capacity of the structure, while reducing the deformation and cracks of the concrete road surface. Cross-shaped formwork is often used in slope protection engineering to increase the friction between concrete and soil and improve the stability of the slope protection. Even if various prefabricated concrete panels with different shapes are used, the production cost will still increase. SUMMARY

[0005] To solve the above problems, a reusable assembled prefabricated concrete road panel is provided, which utilizes a worm gear to drive a worm wheel and a rotating rod, and the first bevel gears at both ends of the rotating rod will also rotate, thereby driving the second bevel gears and the second screws to rotate. The second screws will move the extension blocks connected thereto outward while rotating, and by moving the four extension blocks outward, a cross-shaped space will be formed between the adjusting frame, the connecting plate and the push plate, facilitating the pouring of cross-shaped concrete.

[0006] The utility model provides a kind of prefabricated concrete pavement panel of reusable assembly, including concrete formwork, the inside both sides of the concrete formwork are provided with adjusting frame, the opposite side of two adjusting frame is vertically rotatably provided with symmetrical connecting plate, the opposite side of the connecting plate is rotatably provided with push plate, the one side of the push plate is rotatably provided with first screw rod, and one end of the first screw rod extends to the outside of concrete formwork, and is connected with concrete formwork screw thread.

[0007] Preferably, the two inner walls of the concrete formwork are provided with symmetrical limiting telescopic rods, and the telescopic ends of the limiting telescopic rods are connected to one side of the adjusting frame.

[0008] Preferably, a rotating rod is horizontally rotatably arranged inside the adjusting frame, a worm wheel is arranged outside the rotating rod, a worm is vertically rotatably arranged inside the adjusting frame and engagedly connected with the worm wheel, one end of the worm extends to the outside of the adjusting frame and is provided with a positioning assembly.

[0009] Preferably, second screw rods are rotatably arranged on both sides of the inner wall of the adjusting frame, extension blocks are threadedly connected to the outside of the second screw rods, and a moving groove is formed in the inside of the adjusting frame for the movement of the extension blocks.

[0010] Preferably, first bevel gears are arranged on both sides of the rotating rod, and second bevel gears are arranged on the outside of the second screw rods and engagedly connected with the first bevel gears.

[0011] Preferably, a connecting block is arranged between the two extension blocks.

[0012] Preferably, the positioning assembly comprises a fixing block arranged at the top of the worm, a sliding block is further slidably arranged on the outside of the worm, spring telescopic rods are arranged on both sides of the bottom of the fixing block, and the telescopic ends of the spring telescopic rods are connected to the top of the sliding block.

[0013] Preferably, positioning pins are arranged on both sides of the bottom of the sliding block, and a plurality of positioning grooves adapted to the positioning pins are formed in the upper surface of the adjusting frame.

[0014] The utility model has the beneficial effects compared with the prior art:

[0015] By rotating the worm, the worm wheel and the rotating rod are driven to rotate, and the first bevel gears at both ends of the rotating rod are also rotated, thereby driving the second bevel gears and the second screw rods to rotate. The second screw rod rotates and drives the extension blocks threadedly connected thereto to move outward from the adjusting frame. By moving the four extension blocks outward, a cross shape is formed between the adjusting frame, the connecting plate and the push plate, which facilitates the pouring of cross-shaped concrete.

[0016] By rotating the first screw rod on both sides, the push plate is driven to move, and the push plate moves while driving the two connecting plates on both sides to move, further driving the two adjusting frames to move, at this time, the adjusting frame, the connecting plate and the push plate together enclose the required polygonal space, which is convenient for pouring polygonal concrete.

[0017] The poured concrete is lifted by an external device, the concrete formwork is repeatedly used, and in order to prevent the concrete from being adhered to the concrete formwork, a film can be added to the concrete formwork before pouring. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a reusable assembled prefabricated concrete pavement panel.

[0019] Figure 2 It is a schematic diagram of the structure of the adjusting frame in a reusable assembled prefabricated concrete pavement panel.

[0020] Figure 3 It is a schematic diagram of the vertical dissection of the adjusting frame in a reusable assembled prefabricated concrete pavement panel.

[0021] Figure 4 It is a schematic diagram of the horizontal dissection of the adjusting frame in a reusable assembled prefabricated concrete pavement panel.

[0022] Figure 5 It is a schematic diagram of the cross-shaped concrete pouring work in a reusable assembled prefabricated concrete pavement panel.

[0023] Figure 6 It is a schematic diagram of the polygonal concrete pouring work in a reusable assembled prefabricated concrete pavement panel.

[0024] In the figure, the reference signs are: 1, a concrete formwork; 2, an adjusting frame; 3, a limiting telescopic rod; 4, a connecting plate; 5, a first screw rod; 6, a push plate; 7, an extension block; 8, a fixed block; 9, a spring telescopic rod; 10, a sliding block; 11, a worm; 12, a positioning pin; 13, a worm wheel; 14, a rotating rod; 15, a first conical gear; 16, a second conical gear; 17, a second screw rod; and 18, a connecting block. DETAILED DESCRIPTION

[0025] In order to further understand the characteristics, technical means and specific purposes and functions achieved by the present application, the present application will be described in further detail below in combination with the drawings and specific embodiments.

[0026] As Figures 1 to 6 shown, the present application provides:

[0027] The reusable assembled prefabricated concrete pavement slab comprises a concrete formwork 1, the inside of the concrete formwork 1 is provided with adjusting frames 2 on both sides, the opposite sides of the two adjusting frames 2 are vertically rotatably provided with symmetrical connecting plates 4, the opposite sides of the connecting plates 4 are rotatably provided with push plates 6, one side of the push plate 6 is rotatably provided with a first screw rod 5, one end of the first screw rod 5 extends to the outside of the concrete formwork 1 and is threadedly connected with the concrete formwork 1.

[0028] When it is necessary to pour polygonal concrete, the first screw rods 5 on both sides can be rotated to drive the push plates 6 to move, and the push plates 6 move to drive the two connecting plates 4 on both sides to move, and further drive the two adjusting frames 2 to move, at this time, the adjusting frames 2, the connecting plates 4 and the push plates 6 together enclose the required polygonal space, which is convenient for pouring polygonal concrete.

[0029] As shown in Figure 4 , the inside walls of the concrete formwork 1 on both sides are provided with symmetrical limiting telescopic rods 3, and the telescopic ends of the limiting telescopic rods 3 are connected with one side of the adjusting frames 2.

[0030] By using the limiting telescopic rods 3, the position deviation of the adjusting frames 2 during movement can be effectively prevented, so as to ensure the accurate position adjustment of the adjusting frames 2.

[0031] As shown in Figure 3 and Figure 4 , a rotating rod 14 is horizontally rotatably arranged in the inside of the adjusting frame 2, a worm wheel 13 is arranged on the outside of the rotating rod 14, a worm 11 is vertically rotatably arranged in the inside of the adjusting frame 2 and is in meshing connection with the worm wheel 13, and one end of the worm 11 extends to the outside of the adjusting frame 2 and is provided with a positioning assembly.

[0032] By rotating the worm 11, the rotation of the worm wheel 13 and the rotating rod 14 is further driven. The positioning assembly prevents the worm 11 from rotating by itself without external force, because the self-rotation of the worm 11 may have adverse effects on the pouring work, so as to ensure the smooth progress of the entire pouring process.

[0033] As shown in Figure 3 and Figure 4 , second screw rods 17 are rotatably arranged on both sides of the inner wall of the adjusting frame 2, extension blocks 7 are threadedly connected to the outside of the second screw rods 17, and a moving groove for the movement of the extension blocks 7 is formed in the inside of the adjusting frame 2.

[0034] By moving the four extension blocks 7 outward, a cross shape is enclosed between the adjusting frame 2, the connecting plate 4 and the push plate 6, which is convenient for pouring cross-shaped concrete.

[0035] As shown in Figure 3 andFigure 4 As shown, the two sides of the rotating rod 14 are provided with the first bevel gear 15, and the outside of the second screw rod 17 is provided with the second bevel gear 16 which is meshed and connected with the first bevel gear 15.

[0036] The first bevel gear 15 drives the second bevel gear 16 to rotate, and at the same time, the second screw rod 17 on one side of the second bevel gear 16 also rotates, thereby driving the extension block 7 outside the second screw rod 17 to move outward, facilitating the pouring of cross-shaped concrete.

[0037] As shown in Figure 3 and Figure 4 , the two extension blocks 7 are provided with the connecting block 18.

[0038] Through the connecting block 18, the two extension blocks 7 will not completely separate from the contact with the second screw rod 17 when moving, that is, after the extension block 7 moves a distance, the connecting block 18 will abut against the inner wall of the adjusting frame 2, preventing the extension block 7 from completely separating from the contact with the second screw rod 17.

[0039] As shown in Figure 3 and Figure 4 , the positioning assembly includes the fixed block 8 arranged at the top of the worm 11, and the outside of the worm 11 is also provided with the sliding block 10 which is slidably arranged, and the bottom of the fixed block 8 is provided with the spring telescopic rod 9 on both sides, and the telescopic end of the spring telescopic rod 9 is connected with the top of the sliding block 10.

[0040] By sliding the sliding block 10, the sliding block 10 rises along the direction of the worm 11, at this time, the positioning pin 12 at the bottom of the sliding block 10 will be away from the positioning groove on the upper surface of the adjusting frame 2, at this time, the worm 11 can be rotated, thereby driving the worm gear 13 and the rotating rod 14 to rotate.

[0041] As shown in Figure 2 , the bottom of the sliding block 10 is provided with the positioning pin 12 on both sides, and the upper surface of the adjusting frame 2 is provided with a plurality of positioning grooves which are matched with the positioning pin 12.

[0042] By the cooperation between the positioning pin 12 and the positioning groove, the worm 11 can be prevented from rotating randomly when not working.

[0043] Working principle: when the rectangular concrete is needed to be poured, the concrete is poured between the two adjusting frames 2, the connecting plates 4 and the push plates 6, since the adjusting frames 2, the rotating plates and the push plates 6 form a rectangle, the poured concrete is also rectangular, when the polygonal concrete is needed to be poured, the first screw rods 5 on both sides can be rotated to drive the push plates 6 to move, and the push plates 6 move at the same time to drive the connecting plates 4 on both sides to move, further drive the two adjusting frames 2 to move, at this time the adjusting frames 2, the connecting plates 4 and the push plates 6 form a polygon, which is convenient for pouring the polygonal concrete, when the cross-shaped concrete is needed to be poured, the slider 10 can be slid first, the slider 10 rises along the direction of the worm 11, at this time the positioning pin 12 at the bottom of the slider 10 is away from the positioning hole on the upper surface of the adjusting frame 2, at this time the worm 11 can be rotated to drive the worm wheel 13 and the rotating rod 14 to rotate, at the same time the first bevel gears 15 at both ends of the rotating rod 14 also rotate to drive the second bevel gears 16 and the second screw rods 17 to rotate, the second screw rods 17 rotate at the same time to drive the extension blocks 7 connected with the second screw rods 17 to move outwardly, through the outward movement of the four extension blocks 7, at this time the adjusting frames 2, the connecting plates 4 and the push plates 6 form a cross shape, which is convenient for pouring the cross-shaped concrete, after pouring is completed, the concrete is hoisted by the external equipment, which is convenient for the concrete formwork 1 to be reused, in order to prevent the concrete from being adhered to the concrete formwork 1, the film can be added to the concrete formwork 1 before pouring.

[0044] The above embodiments only express one or several embodiments of the reusable assembled prefabricated concrete pavement slab of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

[0045] In the present application, unless otherwise explicitly specified and limited, for example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise explicitly limited, for ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A reusable, fabricated, precast concrete pavement panel, characterized by, The utility model provides a concrete formwork (1), the inside both sides of concrete formwork (1) are provided with the adjusting frame (2), the opposite side of two adjusting frame (2) is vertically rotatory and is provided with the symmetrical connecting plate (4), the opposite side of connecting plate (4) is rotatory and is provided with the push plate (6), one side of push plate (6) is rotatory and is provided with the first screw rod (5), and one end of first screw rod (5) extends to the outside of concrete formwork (1) and is connected in screw thread with concrete formwork (1).

2. The reusable assembled precast concrete pavement slab of claim 1, wherein, The inside wall of the concrete formwork (1) on both sides is provided with symmetrical limiting telescopic rods (3), and the telescopic ends of the limiting telescopic rods (3) are connected to one side of the adjusting frame (2).

3. The reusable assembled precast concrete pavement slab of claim 1, wherein, The inside of the adjusting frame (2) is horizontally rotatory and is provided with a rotating rod (14), the outside of the rotating rod (14) is provided with a worm wheel (13), the inside of the adjusting frame (2) is vertically rotatory and is provided with a worm gear (11) in meshing connection with the worm wheel (13), one end of the worm gear (11) extends to the outside of the adjusting frame (2) and is provided with a positioning assembly.

4. The reusable assembled precast concrete pavement slab of claim 3, wherein, The inside wall of the adjusting frame (2) on both sides is rotatory and is provided with a second screw rod (17), the outside of the second screw rod (17) is connected in screw thread with an extension block (7), and the inside of the adjusting frame (2) is provided with a moving groove for the movement of the extension block (7).

5. The reusable, fabricated, precast concrete pavement panel of claim 4, wherein, The rotating rod (14) on both sides is provided with a first bevel gear (15), and the outside of the second screw rod (17) is provided with a second bevel gear (16) in meshing connection with the first bevel gear (15).

6. The reusable, fabricated, precast concrete pavement panel of claim 4, wherein, A connecting block (18) is arranged between the two extension blocks (7).

7. The reusable assembled precast concrete pavement slab as claimed in claim 3, wherein, The positioning assembly comprises a fixing block (8) arranged at the top of the worm gear (11), the outside of the worm gear (11) is further provided with a sliding block (10), the bottom of the fixing block (8) on both sides is provided with a spring telescopic rod (9), and the telescopic end of the spring telescopic rod (9) is connected to the top of the sliding block (10).

8. The reusable, fabricated, precast concrete pavement panel of claim 7, wherein, The bottom of the sliding block (10) on both sides is provided with a positioning pin (12), and the upper surface of the adjusting frame (2) is provided with a plurality of positioning grooves matched with the positioning pins (12).

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