Concrete panel false seam dowel bar mounting device

Abstract

The utility model relates to the technical field of engineering construction, in particular to a concrete panel false seam dowel bar mounting device which comprises a movable support and a pressing mechanism connected to the movable support through an adjusting mechanism. The downward pressing mechanism is used for pressing a dowel bar arranged on a concrete panel downwards so that the dowel bar can be pressed into the concrete panel, and the height of the downward pressing mechanism can be adjusted through up-down adjustment of the adjusting mechanism so that the lower end of the downward pressing mechanism can be kept in contact with the dowel bar. The downward pressing mechanism comprises a vibration motor, a connecting plate and a plurality of pressing rod assemblies arranged below the connecting plate at intervals, the movable support and the connecting plate stretch across a pavement formed by the concrete panel, and the pressing rod assemblies are arranged corresponding to the dowel bars; the vibration motor drives the pressing rod assembly to vibrate so as to press the dowel bar into the concrete panel in a vibration mode.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, specifically to a concrete panel dummy joint dowel bar installation device. Background Technology

[0002] A dummy joint in concrete slabs refers to a joint that does not extend through the entire thickness of a cement concrete slab. It is mainly used to prevent irregular cracks from forming during the shrinkage of the concrete. The main function of the dummy joint is to cope with the stress generated by the cold shrinkage of the concrete and to prevent the concrete slab from developing a network of irregular cracks when the temperature changes.

[0003] Dummy joints are commonly found on airport pavements. To transfer vehicle loads between two pavement panels, prevent misalignment, increase stress transfer between adjacent concrete blocks, and prevent uneven settlement caused by excessive localized stress on the concrete pavement, dowel bars are used at the ends of runways and parallel taxiways where dummy joints exist. Therefore, during continuous concrete panel construction, dowel bar installation devices are required to fix the dowel bars in their designed positions. Existing dowel bar installation devices consist of connecting rods and pressure bar assemblies. The pressure bar assemblies are spaced below the connecting rods, which span both sides of the pavement. Workers apply downward force by holding both ends of the connecting rods, causing the pressure bar assemblies to press the dowel bars into the concrete. Currently, airport flight area pavements use dry-hardened concrete. Using existing dowel bar installation devices is challenging due to the weight of the equipment, the high Vebe consistency and viscosity of the concrete, making manual lifting difficult. Furthermore, during continuous construction of dummy joint dowel bars, movement is often inconvenient, hindering the fixing of the dowel bars. Summary of the Invention

[0004] The purpose of this utility model is to provide a dowel bar installation device for dummy joints in concrete panels, so as to solve the problems mentioned in the background art of the existing dowel bar installation devices being laborious to operate and having low construction efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dowel bar installation device for a concrete panel includes a movable support and a pressing mechanism connected to the movable support via an adjustment mechanism. The pressing mechanism is used to press down on the dowel bars disposed on the concrete panel to press the dowel bars into the concrete panel. The pressing mechanism can be adjusted up and down via the adjustment mechanism to adjust its height so that its lower end is in contact with the dowel bars. The pressing mechanism includes a vibration motor, a connecting plate, and a plurality of pressure bar assemblies spaced apart below the connecting plate. The movable support and the connecting plate span the pavement formed by the concrete panel. The pressure bar assemblies are disposed corresponding to the dowel bars. The vibration motor drives the pressure bar assemblies to vibrate and press the dowel bars into the concrete panel.

[0007] As a further technical solution of this utility model: the movable support includes a portal frame formed by connecting the upright and the top rod, the bottom end of the upright is provided with a movable wheel, and the top rod is used to span the pavement formed by the concrete panel.

[0008] As a further technical solution of this utility model: the adjustment mechanism includes an upper pull rope connected to the top rod and an adjustment support disposed below the upper pull rope. The adjustment support is provided with a connecting ring and a U-shaped groove. The lower end of the upper pull rope is connected to the connecting ring of the adjustment support. A threaded rod is rotatably disposed in the U-shaped groove. A middle pull rope is wound around the threaded rod. The lower end of the middle pull rope is connected to the pressing mechanism. The upper end of the middle pull rope passes through the threaded rod and is used for the user to pull, thereby adjusting the height of the pressing mechanism connected to the lower end of the middle pull rope.

[0009] As a further technical solution of this utility model: a pull ring is connected to the lower part of the middle pull rope, the pull ring is detachably connected to the bottom pull rope, and the lower end of the bottom pull rope is connected to the connecting plate, so that the pressing mechanism and the middle pull rope indirectly form a detachable connection relationship.

[0010] As a further technical solution of this utility model: the pressure rod assembly is evenly distributed at the bottom of the connecting plate, and the bottom pull rope is symmetrically distributed about the central axis of the connecting plate.

[0011] As a further technical solution of this utility model: the connecting plate has mounting through holes on both sides, and a rope winding rod is installed in the mounting through holes. The bottom pull rope is connected to the rope winding rod and connected to the connecting plate.

[0012] As a further technical solution of this utility model: a first connecting rod is provided below the top rod, the two ends of the first connecting rod are respectively connected to the upright rod, a first reinforcing plate is provided between the first connecting rod and the upright rod, a second reinforcing plate is provided between the upright rod and the top rod, and diagonal bracing rods are obliquely distributed between the upright rod and the top rod.

[0013] As a further technical solution of this utility model: each of the pressure rod assemblies includes at least one pressure rod, the bottom of the pressure rod is formed with a groove, and the groove is adapted to the outer surface shape of the force transmission rod.

[0014] As a further technical solution of this utility model: each of the pressure rod assemblies includes two pressure rods spaced apart, and a plurality of first reinforcing rods are provided between the two pressure rods, and a second reinforcing rod and a third reinforcing rod are connected between adjacent first reinforcing rods.

[0015] As a further technical solution of this utility model: each of the pressure bar assemblies includes at least one pressure bar, and the outer wall of the pressure bar is coated with an anti-corrosion layer.

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

[0017] (1) This utility model uses a movable support to support and move the entire device, reducing the amount of manual handling. The height of the pressing mechanism is adjusted by the adjustment mechanism, so that the pressing mechanism can be raised away from the pavement during the movement of the concrete panel false joint dowel bar installation device, making the movement more convenient. The pressing mechanism is equipped with a vibration motor to press the dowel bar into the concrete panel to a specified depth, overcoming the defect that the concrete is highly viscous and difficult to press the dowel bar in, reducing the amount of manual operation and improving work efficiency.

[0018] (2) The tail end pull rope drives the middle end pull rope to move around the wire rod of the adjustment seat, thereby driving the pressing mechanism to move up and down. When it is necessary to fix the height of the pressing mechanism, the end of the tail end pull rope can be fixed to the moving bracket, making the height adjustment of the pressing mechanism more convenient.

[0019] (3) The detachable connection between the pressing mechanism and the adjusting mechanism allows the pressing mechanism to be replaced or disassembled, which is beneficial for maintenance.

[0020] (4) The mobile support is connected by a first connecting rod between the uprights, reinforced by a first reinforcing plate at the connection point, reinforced by a diagonal brace at the top, and reinforced by a second reinforcing plate between the uprights and the top rod. Thus, the uprights, the first connecting rod, the top rod, etc. form an integral frame, thereby improving the overall stability.

[0021] (5) The first reinforcing rod, the second reinforcing rod and the third reinforcing rod are arranged between the pressure rods, which improves the strength of the pressure rod assembly and reduces the problem of pressure rod assembly breakage, thereby improving the service durability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the adjustable support structure of this utility model.

[0024] Figure 3 This is a partial top view of the connecting plate of this utility model.

[0025] Figure 4 This is a schematic diagram of the pressure bar assembly structure of this utility model.

[0026] In the diagram: 1. Movable support; 11. Upright pole; 12. Top pole; 13. Moving wheel; 14. First connecting rod; 15. First reinforcing plate; 16. Second reinforcing plate; 17. Diagonal brace; 2. Adjustment mechanism; 21. Upper pull rope; 22. Adjustment support; 221. Connecting ring; 222. U-groove; 223. Threading rod; 23. Middle pull rope; 24. Pull ring; 25. Bottom pull rope; 3. Lower pressing mechanism; 31. Vibration motor; 32. Connecting plate; 33. Pressure rod assembly; 331. Pressure rod; 332. First reinforcing rod; 333. Second reinforcing rod; 334. Third reinforcing rod; 34. Rope winding rod; 100. Track surface; 200. Force transmission rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4This utility model provides an embodiment of a concrete panel false joint dowel bar installation device, including a movable support 1 and a pressing mechanism 3 connected to the movable support 1 via an adjusting mechanism 2. The pressing mechanism 3 is used to press down on the dowel bar 200 disposed on the concrete panel so that the dowel bar 200 is pressed into the concrete panel. The pressing mechanism 3 is adjusted up and down by the adjusting mechanism 2 to adjust its height so that its lower end is in contact with the dowel bar 200. The pressing mechanism 3 includes a vibration motor 31, a connecting plate 32, and a plurality of pressure bar assemblies 33 spaced apart below the connecting plate 32. The movable support 1 and the connecting plate 32 span the pavement 100 formed by the concrete panel. The pressure bar assemblies 33 are disposed corresponding to the dowel bar 200. The vibration motor 31 drives the pressure bar assemblies 33 to vibrate and press the dowel bar 200 into the concrete panel.

[0029] This invention uses a movable support 1 to support and move the entire device, reducing the amount of manual handling. The height of the pressing mechanism 3 can be adjusted by the adjusting mechanism 2, so that the pressing mechanism 3 can be raised away from the pavement during the movement of the concrete panel false joint dowel bar installation device, making the device easier to move. The pressing mechanism 3 is equipped with a vibration motor 31 to press the dowel bar 200 into the concrete panel to a specified depth, overcoming the defect that the concrete is highly viscous and difficult to press the dowel bar in, reducing the amount of manual operation and improving work efficiency.

[0030] The mobile support 1 includes an upright 11, a top rod 12, and a first connecting rod 14 located below the top rod 12. The upright 11 and the top rod 12 form a portal frame. The bottom end of the upright 11 is equipped with a moving wheel 13. The top rod 12 is used to span the pavement 100 formed by the concrete panel. The two ends of the first connecting rod 14 are respectively connected to the upright 11. A first reinforcing plate 15 is provided between the first connecting rod 12 and the upright 11, and a second reinforcing plate 16 is provided between the upright 11 and the top rod 12. Diagonal bracing rods 17 are obliquely distributed between the upright 11 and the top rod 12. Furthermore, the joints of the upright 11, the diagonal bracing rods 17, and the top rod 12 are connected in an assembled manner and can be reinforced by bolts. This allows the mobile support 1 to be disassembled when not in use, which has the effects of reducing space and facilitating transportation and storage.

[0031] The adjustment mechanism 2 includes an upper pull rope 21 connected to the top rod 12. The lower end of the upper pull rope 21 is connected to an adjustment support 22. The adjustment support 22 is provided with a connecting ring 221 and a U-shaped groove 222. A threaded rod 223 is rotatably arranged in the U-shaped groove 222. A middle pull rope 23 is wound around the threaded rod 223. The lower end of the middle pull rope 23 is connected to the lower pressing mechanism 3. The upper end of the middle pull rope 23 passes through the threaded rod 223 and is used by the user to pull it, thereby adjusting the height of the lower pressing mechanism 3 connected to the lower end of the middle pull rope 23.

[0032] A pull ring 24 is connected to the lower part of the middle pull rope 23. The pull ring 24 is detachably connected to the bottom pull rope 25. The lower end of the bottom pull rope 25 is connected to the connecting plate 32, thereby indirectly forming a detachable connection between the pressing mechanism 3 and the middle pull rope 23. The pull ring 24 is a square ring structure, and the bottom pull rope 25 is detachably connected to the pull ring 24 through a detachable knot.

[0033] The connecting plate 32 has through holes on both sides, and a rope rod 34 is installed in the through holes. The bottom pull rope 25 is connected to the rope rod 34 and then to the connecting plate 32.

[0034] The pressure rod assemblies 33 are evenly distributed at the bottom of the connecting plate 32, and the two bottom pull ropes 25 are symmetrically distributed about the central axis of the connecting plate 32 to make the pulling force of the adjusting mechanism on the pressing mechanism more uniform, so that each pressure rod assembly 33 can contact the force transmission rod 200. Each pressure rod assembly 33 includes at least one pressure rod 331. In this embodiment, it is preferable to have two pressure rods 331. The bottom of the pressure rod 331 is formed with a groove that matches the shape of the outer surface of the force transmission rod 200. The two pressure rods 331 are spaced apart, and multiple first reinforcing rods 332 are provided between the two pressure rods 331. A second reinforcing rod 333 and a third reinforcing rod 334 are connected between adjacent first reinforcing rods 332 to achieve the purpose of stabilizing and reinforcing the pressure rod assembly 33.

[0035] In addition, to improve the service life of the compression bar 331, the outer wall of the compression bar 331 is coated with an anti-corrosion layer.

[0036] The working process of this utility model includes: First, the pressing mechanism 3 is connected to the adjusting mechanism 2 through the connection of the bottom pull rope 25 and the pull ring 24. The utility model is moved to the preset installation position of the force transmission rod by the moving wheel 13, so that the moving bracket 1 and the pressing mechanism 3 span the track surface 100. The upper end of the middle pull rope 23 is pulled to adjust the height position of the pressing mechanism 3. Then, the upper end of the middle pull rope 23 is locked and fixed to the upright 11 of the moving bracket 1 to keep the height of the pressing mechanism 3 fixed. The connecting plate 32 is vibrated by the vibration motor 31, so that the pressing rod assembly 33 presses the force transmission rod 200 into the specified depth position.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for installing dowel bars in dummy joints of concrete panels, characterized in that: The device includes a movable support and a pressing mechanism connected to the movable support via an adjustment mechanism. The pressing mechanism is used to press down on a force transmission rod disposed on a concrete panel to press the force transmission rod into the concrete panel. The pressing mechanism can be adjusted up and down via the adjustment mechanism to adjust its height so that its lower end remains in contact with the force transmission rod. The pressing mechanism includes a vibration motor, a connecting plate, and a plurality of pressure rod assemblies spaced below the connecting plate. The movable support and the connecting plate span the pavement formed by the concrete panel. The pressure rod assemblies are disposed corresponding to the force transmission rods. The vibration motor drives the pressure rod assemblies to vibrate and press the force transmission rods into the concrete panel.

2. The concrete panel dummy joint dowel bar installation device according to claim 1, characterized in that: The movable support includes a portal frame formed by connecting uprights and top rods. The bottom end of the uprights is provided with a movable wheel, and the top rod is used to span the pavement formed by the concrete panel.

3. The concrete panel dummy joint dowel bar installation device according to claim 2, characterized in that: The adjustment mechanism includes an upper pull rope connected to the top rod and an adjustment support disposed below the upper pull rope. The adjustment support has a connecting ring and a U-shaped groove. The lower end of the upper pull rope is connected to the connecting ring of the adjustment support. A threaded rod is rotatably disposed in the U-shaped groove. A middle pull rope is wound around the threaded rod. The lower end of the middle pull rope is connected to the pressing mechanism. The upper end of the middle pull rope passes through the threaded rod and is used by the user to pull, thereby adjusting the height of the pressing mechanism connected to the lower end of the middle pull rope.

4. The concrete panel dummy joint dowel bar installation device according to claim 3, characterized in that: A pull ring is connected to the lower part of the middle pull rope, and the pull ring is detachably connected to the bottom pull rope. The lower end of the bottom pull rope is connected to the connecting plate, so that the pressing mechanism and the middle pull rope indirectly form a detachable connection relationship.

5. The concrete panel dummy joint dowel bar installation device according to claim 4, characterized in that: The pressure bar assembly is evenly distributed at the bottom of the connecting plate, and the bottom pull rope is symmetrically distributed about the central axis of the connecting plate.

6. The concrete panel dummy joint dowel bar installation device according to claim 4, characterized in that: The connecting plate has mounting through holes on both sides, and a rope winding rod is installed in the mounting through holes. The bottom pull rope is connected to the rope winding rod and then to the connecting plate.

7. The concrete panel dummy joint dowel bar installation device according to claim 2, characterized in that: A first connecting rod is provided below the top rod, and the two ends of the first connecting rod are respectively connected to the upright. A first reinforcing plate is provided between the first connecting rod and the upright, and a second reinforcing plate is provided between the upright and the top rod. Diagonal bracing rods are distributed obliquely between the upright and the top rod.

8. The concrete panel dummy joint dowel bar installation device according to claim 1, characterized in that: Each of the aforementioned pressure bar assemblies includes at least one pressure bar, the bottom of which is formed with a groove that is adapted to the shape of the outer surface of the force transmission bar.

9. The concrete panel dummy joint dowel bar installation device according to claim 1, characterized in that: Each of the pressure bar assemblies includes two pressure bars spaced apart, with multiple first reinforcing bars between the two pressure bars, and a second reinforcing bar and a third reinforcing bar connecting adjacent first reinforcing bars.

10. The concrete panel dummy joint dowel bar installation device according to claim 1, characterized in that: Each of the aforementioned pressure bar assemblies includes at least one pressure bar, the outer wall of which is coated with an anti-corrosion layer.

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