Bridge deck pavement reinforcement mesh elevation and protective layer thickness control instrument

Abstract

This utility model relates to the field of bridge deck pavement technology, and more particularly to a bridge deck pavement rebar mesh elevation and protective layer thickness control instrument. This utility model provides a portable and easy-to-operate bridge deck pavement rebar mesh elevation and protective layer thickness control instrument. The instrument includes a baffle and rollers, with rollers rotatably connected to the left sides of both the front and rear sides of the baffle. This utility model works by winding a test rope between two winding drums, allowing the test rope to wind around a first worm gear and then around a rope wheel, forming a straight line between the rope wheels. The rollers then push a U-shaped structure to move on the guardrails at both ends of the bridge, moving the support rod and causing the test rope to move above the rebar mesh. The distance between the test rope and the rebar mesh is observed to determine whether the rebar mesh height is up to standard, achieving the effect of being portable and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of bridge deck paving technology, and in particular to a control instrument for the elevation of steel mesh and the thickness of protective layer in bridge deck paving. Background Technology

[0002] The bridge deck pavement steel mesh elevation and protective layer thickness control instrument is a measurement and control system specifically designed for bridge construction to ensure the accurate elevation of the steel mesh and that the protective layer thickness meets design requirements. This equipment is crucial for guaranteeing the safety, durability, and construction quality of the bridge structure.

[0003] For example, the method and device for controlling the top protective layer of bridge deck pavement steel mesh, disclosed in CN117661470A, employs a method to align the lower ends of the limit markers on a steel mesh elevation trolley with the same horizontal straight line, thus controlling the top surface of the steel mesh to the same horizontal plane as the design elevation requirement. This patent overcomes the limitations of traditional methods that rely on the top surface of the bridge slab for controlling the steel mesh elevation, which is susceptible to changes in the prestress of the bridge slab. This patent uses a steel mesh elevation trolley to control the top surface of the steel mesh at the design elevation, unaffected by changes in the prestress of the bridge slab. This patent effectively controls the thickness of the top protective layer of the bridge deck pavement steel mesh, effectively preventing bridge deck cracking, deformation, and collapse, and significantly extending the service life of the bridge. However, this method and device for controlling the top protective layer of bridge deck pavement steel mesh is relatively large, inconvenient to carry, and cumbersome to operate.

[0004] Therefore, a portable and easy-to-operate instrument for controlling the elevation of steel mesh and the thickness of protective layer in bridge deck paving has been developed. Utility Model Content

[0005] In order to overcome the shortcomings of existing methods and devices for controlling the top protective layer of bridge deck pavement steel mesh, which are large in size, inconvenient to carry, and cumbersome to operate, this utility model provides a bridge deck pavement steel mesh elevation and protective layer thickness control instrument that is easy to carry and simple to operate.

[0006] The technical implementation scheme of this utility model is as follows:

[0007] A bridge deck pavement steel mesh elevation and protective layer thickness control instrument includes a baffle, rollers, a support plate, a clamping plate, a winding assembly, and a fixing assembly. Rollers are rotatably connected to the left sides of both the front and rear sides of the baffle. A support plate is connected to the upper side of the baffle, and multiple rollers are rotatably connected to the lower side of the support plate. A clamping plate is clamped to the left side of the support plate, and rollers are rotatably connected to the right sides of both the front and rear sides of the clamping plate. A winding assembly capable of winding a test rope is provided on the support plate, and a fixing assembly capable of fixing the test rope is also provided on the support plate.

[0008] Optionally, the winding assembly includes a connecting plate, bolts, a support rod, a winding drum, a turntable, a lead screw, a lifting rod, a rope pulley, and a connecting rod. The connecting plate is connected to the upper side of the support plate, and the clamping plate is slidably connected to the connecting plate. Bolts are threadedly connected to the upper sides of both the left and right sides of the connecting plate. The support rod is slidably connected to the connecting plate, with the bolt on the right side contacting and engaging with the support rod, and the bolt on the left side contacting and engaging with the clamping plate. The connecting rod is rotatably connected to the upper right side of the support rod, and the winding drum is clamped onto the connecting rod. The turntable is rotatably connected to the right side of the support rod, and a lead screw is connected to the lower right side of the support rod. A lifting rod is threadedly connected to the lead screw, and a rope pulley is rotatably connected to the lower side of the lifting rod.

[0009] Optionally, the turntable is equipped with a grip bar.

[0010] Optionally, the fixing assembly includes a first worm gear, a first worm, a second worm, and a second worm gear. The first worm gear is rotatably connected to the upper right rear part of the support plate, and the first worm is rotatably connected to the upper right rear part of the support plate. The first worm meshes with the first worm gear. The second worm is connected to the left side of the turntable, and the second worm gear is connected to the lower part of the connecting rod. The second worm gear meshes with the second worm.

[0011] Optionally, the first worm gear is provided with a winding wheel.

[0012] Optionally, it also includes a handle, with a handle attached to the upper side of the first worm.

[0013] This invention has the following advantages: By winding the test rope between two spools, the test rope is wound around the first worm gear and passes around the rope wheel, forming a straight line between the rope wheels. Then, the rollers push the U-shaped structure to move on the guardrails at both ends of the bridge, which in turn moves the support rod, allowing the test rope to move above the steel mesh. The distance between the test rope and the steel mesh is observed to determine whether the height of the steel mesh is up to standard. This invention is easy to carry and simple to operate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the first worm gear and clamping plate of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the rollers and support plates of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the second worm and the second worm wheel of this utility model.

[0018] In the attached diagrams: 1: baffle, 2: roller, 3: support plate, 4: clamping plate, 5: connecting plate, 6: bolt, 7: support rod, 8: winding drum, 9: turntable, 10: lead screw, 11: lifting rod, 12: rope wheel, 13: first worm gear, 14: handle, 15: first worm, 16: second worm, 17: second worm gear, 18: connecting rod. Detailed Implementation

[0019] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] An instrument for controlling the elevation of steel mesh and the thickness of protective layer in bridge deck pavement, such as... Figures 1-4 As shown, it includes a baffle 1, rollers 2, support plate 3, clamping plate 4, winding assembly and fixing assembly. Rollers 2 are rotatably connected to the left sides of both the front and rear of the baffle 1. The support plate 3 is connected to the upper side of the baffle 1. Four rollers 2 are rotatably connected to the lower side of the support plate 3. The clamping plate 4 is clamped to the left side of the support plate 3. Rollers 2 are rotatably connected to the right sides of both the front and rear of the clamping plate 4. The winding assembly is provided on the support plate 3. The fixing assembly is also provided on the support plate 3.

[0021] like Figures 1-3 As shown, the winding assembly includes a connecting plate 5, bolts 6, support rods 7, winding drum 8, turntable 9, lead screw 10, lifting rod 11, rope wheel 12, and connecting rod 18. The connecting plate 5 is connected to the upper side of the support plate 3, and the clamping plate 4 is slidably connected to the connecting plate 5. Bolts 6 are threadedly connected to the upper sides of both the left and right sides of the connecting plate 5. The support rod 7 is slidably connected to the connecting plate 5. The bolts 6 on the right side are in contact with the support rod 7, and the bolts 6 on the left side are in contact with the clamping plate 4. The connecting rod 18 is rotatably connected to the upper right side of the support rod 7, and the winding drum 8 is clamped on the connecting rod 18. The turntable 9 is rotatably connected to the right side of the support rod 7. The turntable 9 is equipped with a gripping rod for easy gripping. The lead screw 10 is connected to the lower right side of the support rod 7. The lifting rod 11 is threadedly connected to the lead screw 10, and the rope wheel 12 is rotatably connected to the lower side of the lifting rod 11.

[0022] like Figures 1-4As shown, the fixing assembly includes a first worm gear 13, a handle 14, a first worm 15, a second worm 16, and a second worm gear 17. The first worm gear 13 is rotatably connected to the upper right rear part of the support plate 3. The first worm gear 13 is equipped with a winding wheel for easy winding. The first worm 15 is rotatably connected to the upper right rear part of the support plate 3. The first worm 15 is located to the left of the first worm gear 13. The handle 14 is connected to the upper side of the first worm 15. The first worm 15 meshes with the first worm gear 13. The second worm 16 is connected to the left side of the turntable 9. The second worm gear 17 is connected to the lower part of the connecting rod 18. The second worm gear 17 meshes with the second worm 16.

[0023] When using this utility model, first loosen the bolt 6 on the left side, adjust the position of the clamping plate 4, and place the U-shaped structure composed of the baffle 1, support plate 3, and clamping plate 4 on the guardrails at both ends of the bridge. After placement, bring the clamping plate 4 close to the guardrail so that the roller 2 contacts the bridge guardrail. Then tighten the bolt 6 on the left side to fix the clamping plate 4. Next, loosen the bolt 6 on the right side and adjust the position of the support rod 7 on the connecting plate 5 according to the bridge surface conditions, so that the rope wheel 12 on the lifting rod 11 is above the laid steel mesh. After adjustment, tighten the bolt 6 on the right side to fix the support rod 7. Then, the test rope is wound between the two winding drums 8, so that the test rope is wound in the winding drum on the first worm gear 13 and passes around the rope drum 12, so that the test rope forms a straight line between the rope drums 12. Then, the roller 2 pushes the baffle 1, support plate 3 and clamp 4 to move on the guardrails at both ends of the bridge, which drives the support rod 7 to move, so that the test rope moves above the steel mesh. The staff observes the distance between the test rope and the steel mesh to judge whether the height of the steel mesh is qualified, thus making it easy to carry and simple to operate.

[0024] Rotate the lifting rod 11 so that it moves on the screw 10, and adjust the height of the lifting rod 11 to meet the different steel mesh inspection requirements;

[0025] Rotating the second worm 16 via the turntable 9 causes it to mesh with the second worm wheel 17, which in turn rotates the connecting rod 18, causing the winding drum 8 to rotate and unwind the wire. Rotating the first worm 15 via the handle 14 causes it to mesh with the first worm wheel 13, adjusting the tension of the test rope. After adjustment, the second worm 16 and the second worm wheel 17 self-lock and fix the connecting rod 18 and the winding drum 8, while the first worm 15 and the first worm wheel 13 self-lock and fix the winding wheel on the first worm wheel 13, maintaining the tension of the test rope.

[0026] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A bridge deck pavement steel mesh elevation and protective layer thickness control instrument, characterized in that: It includes a baffle (1), rollers (2), support plate (3), clamp (4), winding assembly and fixing assembly. Rollers (2) are rotatably connected to the left side of both the front and rear parts of the baffle (1). The support plate (3) is connected to the upper side of the baffle (1). Multiple rollers (2) are rotatably connected to the lower side of the support plate (3). The clamp (4) is snapped into the left side of the support plate (3). Rollers (2) are rotatably connected to the right side of both the front and rear parts of the clamp (4). The support plate (3) is provided with a winding assembly that can wind the test rope. The support plate (3) is also provided with a fixing assembly that can fix the test rope.

2. The bridge deck pavement steel mesh elevation and protective layer thickness control instrument according to claim 1, characterized in that: The winding assembly includes a connecting plate (5), bolts (6), support rods (7), winding drum (8), turntable (9), lead screw (10), lifting rod (11), rope pulley (12), and connecting rod (18). The upper side of the support plate (3) is connected to the connecting plate (5). The clamping plate (4) is slidably connected to the connecting plate (5). Bolts (6) are threadedly connected to the upper sides of both the left and right sides of the connecting plate (5). The support rod (7) is slidably connected to the connecting plate (5). The bolt on the right side (6) is threadedly connected to the upper side of the connecting plate (5). 6) The bolt (6) on the left side is in contact with the support rod (7), and the bolt (6) on the left side is in contact with the clamp (4). The upper right side of the support rod (7) is rotatably connected to the connecting rod (18), and the winding drum (8) is clamped on the connecting rod (18). The right side of the support rod (7) is rotatably connected to the turntable (9), and the lower right side of the support rod (7) is connected to the lead screw (10). The lead screw (10) is threadedly connected to the lifting rod (11), and the lower side of the lifting rod (11) is rotatably connected to the rope wheel (12).

3. A bridge deck pavement steel mesh elevation and protective layer thickness control instrument according to claim 2, characterized in that: The turntable (9) is equipped with a grip bar.

4. A bridge deck pavement steel mesh elevation and protective layer thickness control instrument according to claim 1, characterized in that: The fixed assembly includes a first worm wheel (13), a first worm (15), a second worm (16), and a second worm wheel (17). The first worm wheel (13) is rotatably connected to the upper right rear part of the support plate (3), and the first worm (15) is rotatably connected to the upper right rear part of the support plate (3). The first worm (15) meshes with the first worm wheel (13). The second worm (16) is connected to the left side of the turntable (9). The second worm wheel (17) is connected to the lower part of the connecting rod (18). The second worm wheel (17) meshes with the second worm (16).

5. A bridge deck pavement steel mesh elevation and protective layer thickness control instrument according to claim 4, characterized in that: The first worm gear (13) is equipped with a winding wheel.

6. A bridge deck pavement steel mesh elevation and protective layer thickness control instrument according to claim 4, characterized in that: It also includes a handle (14), and the handle (14) is connected to the upper side of the first worm (15).

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