A bridge deck reinforcement laying device

Abstract

The utility model relates to reinforcing mesh laying technical field, concretely relates to a bridge deck reinforcing mesh laying device, including the cushion block body, the downside of cushion block body is equipped with a plurality of support legs, still including the bearing plate and the clamping plate, the bearing plate is fixed at the cushion block body top, the top surface of bearing plate is uniformly recessed with four sliding slots, the sliding slot radial arrangement, every the sliding slot upside is equipped with the clamping plate, the clamping plate is the sector plate of the central angle 90 degrees, the tip of clamping plate is towards the central axis of bearing plate, the two radial sides of clamping plate are symmetrically equipped with V groove group, the V groove group is by two V grooves of up and down, and every V groove two ends respectively penetrate the arc surface and tip of clamping plate, and the slide rod slidingly connected in the corresponding sliding slot in the clamping plate bottom surface is equipped with in the sliding slot, is equipped with the limiting piece for limiting slide rod far away from the center of bearing plate. The utility model has solved the problem that the cushion block is difficult to limit and fix the longitudinal and transverse reinforcement of reinforcing mesh when using.

Description

Technical Field

[0001] This utility model relates to the field of steel mesh laying technology, specifically to a bridge deck steel mesh laying device. Background Technology

[0002] During bridge construction, after laying the steel mesh, concrete is poured to form a protective layer for the steel reinforcement. When laying the steel mesh, it is supported by spacers on its underside. The spacers support the steel mesh and maintain the distance between it and the supporting foundation as required by the design. This ensures that the steel reinforcement is completely encased in a sufficiently thick layer of concrete after pouring. Generally, mortar spacers or plastic spacers are used to support the steel mesh. However, mortar spacers have low strength, are fragile, and cannot guarantee the elevation of the steel mesh. Therefore, plastic spacers are usually used instead of mortar spacers. When spacers are used to support steel mesh, there are problems as mentioned in the authorization announcement number CN209742230U "Positioning Spacers for Steel Mesh". Specifically, plastic or mortar spacers can only restrain a single transverse or longitudinal steel bar, and they are prone to displacement or loosening under load, making it difficult to ensure the positioning accuracy of the steel mesh and affecting the laying effect of the steel mesh. Utility Model Content

[0003] This invention addresses the problem that pad blocks are difficult to simultaneously limit and fix the longitudinal and transverse reinforcing bars of the steel mesh during use. It provides a bridge deck steel mesh paving device that can improve the limiting and fixing effect of the pad blocks on the steel mesh and improve the paving quality of the steel mesh.

[0004] To solve the above problems, the technical solution of this utility model is: A bridge deck steel mesh paving device includes a pad block body with multiple legs on its lower side; it also includes a bearing plate and a clamping plate. The bearing plate is fixed to the top of the pad block body, and four grooves are evenly distributed on the top surface of the bearing plate, the grooves being radially arranged; a clamping plate is correspondingly provided on the upper side of each groove, the clamping plate being a fan-shaped plate with a central angle of 90 degrees, the tip of the clamping plate facing the central axis of the bearing plate, and V-shaped groove groups symmetrically provided on two radial sides of the clamping plate, each V-shaped groove group consisting of upper and lower V-shaped grooves, each V-shaped groove penetrating the arc surface and tip of the clamping plate at both ends, respectively. A sliding rod is connected to the bottom surface of the clamping plate and slidably disposed in the corresponding groove, and a limiting member is provided in the groove to limit the sliding rod from moving away from the center of the bearing plate.

[0005] Furthermore, the groove is an isosceles trapezoidal groove with an upper opening width smaller than the bottom width, and the outer end of the groove penetrates the circumferential surface of the bearing plate; the slide rod is an isosceles trapezoidal rod that matches the groove.

[0006] Furthermore, the limiting component includes a screw and a locking nut. Each slide rod has a through hole in its middle along its length. A screw is inserted into the through hole. One end of the screw is fixedly connected to the inner end of the slide groove, and the other end of the screw extends out of the slide groove. The screw on the side of the slide rod away from the center of the bearing plate is externally threaded with a locking nut. The diameter of the through hole is larger than the diameter of the screw and smaller than the outer diameter of the locking nut.

[0007] Furthermore, the outer ends of the screws on the plurality of limiting members are provided with connecting rings, the outer ends of the plurality of screws are fixedly connected to the inner ring surface of the connecting rings, and a connecting rod is provided between two adjacent screws, with one end of each connecting rod connected to the circumferential surface of the bearing plate and the other end connected to the connecting ring.

[0008] Furthermore, when the inner ends of multiple sliding rods are in contact with the inner ends of their respective sliding grooves, the radial sides of adjacent clamping plates are in contact with each other.

[0009] Furthermore, the opening width of the V-groove is 13mm, and the depth of each V-groove is 8mm; the lower end of the upper V-groove in the same V-groove group intersects with the upper end of the lower V-groove, and the lower end of the lower V-groove in the V-groove group intersects with the bottom surface of the clamping plate.

[0010] The beneficial effects of this utility model through the above technical solution are as follows: When this utility model is in use, after the four clamping plates are moved away from the central axis of the bearing plate, a cross-shaped channel is formed between the four clamping plates. The cross-shaped intersection of the reinforcing mesh is placed in the cross-shaped channel. Subsequently, the four clamping plates move towards the central axis of the bearing plate. The longitudinal and transverse reinforcing bars of the reinforcing mesh are clamped and limited by the V-shaped grooves on the clamping plates. By locking the movement of the clamping plates with locking nuts, the clamping plates can be used to clamp and fix the reinforcing mesh, which can improve the limiting and fixing effect of the pads on the reinforcing mesh, prevent the reinforcing mesh from loosening or falling off the pads, and improve the laying effect of the reinforcing mesh. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the clamping plate of this utility model; Figure 3 This is a schematic diagram of the structure of the bearing plate and screw connection of this utility model; Figure 4 This is a diagram showing the usage state of this utility model.

[0012] The attached diagram is labeled as follows: 1. Main body of the pad, 2. Support leg, 3. Bearing plate, 4. Clamping plate, 5. Slide groove, 6. V-groove, 7. Slide rod, 8. Screw rod, 9. Locking nut, 10. Through hole, 11. Connecting ring, 12. Connecting rod, 13. Steel mesh, 13a. Longitudinal steel bar, 13b. Transverse steel bar. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-4 As shown, a bridge deck steel mesh paving device includes a pad body 1, with multiple legs 2 on the lower side of the pad body 1, and the top surface of the pad body 1 is flat; it also includes a bearing plate 3 and a clamping plate 4. The bearing plate 3 is a circular plate, and both the bearing plate and the clamping plate are made of glass fiber reinforced nylon 66 material, which has the characteristics of high strength and high wear resistance. The bearing plate 3 is fixed to the top of the pad body 1, and four grooves 5 are evenly distributed on the top surface of the bearing plate 3, which are radially arranged; a clamping plate 4 is correspondingly provided on the upper side of each groove 5, and the clamping plate 4 is a fan-shaped plate with a central angle of 90 degrees, and the tip of the clamping plate 4 is... Facing the central axis of the bearing plate 3 (the tip of the clamping plate 4 is the edge where the vertex of the clamping plate 4 is located), the two radial sides of the clamping plate 4 are symmetrically provided with V-shaped groove groups. The V-shaped groove group is composed of two upper and lower V-shaped grooves 6. The inner and outer ends of the V-shaped groove 6 are V-shaped edges. The inner end of the V-shaped groove 6 is one end facing the central axis of the bearing plate 3, and the other end is the outer end. Each V-shaped groove 6 passes through the arc-shaped surface and the tip of the clamping plate 4 at both ends. The bottom surface of the clamping plate 4 is connected to a slide rod 7 that is slidably provided in the corresponding slide groove 5. The slide groove 5 is provided with a limiting member to limit the slide rod 7 from moving away from the center of the bearing plate 3. The locking nut selected in this utility model is a nylon locking nut, the purpose of which is to prevent loosening.

[0014] The slide groove 5 is an isosceles trapezoidal groove with an upper opening width smaller than the bottom width, and the outer end of the slide groove 5 penetrates the circumferential surface of the bearing plate 3; the slide rod 7 is an isosceles trapezoidal rod that corresponds to the slide groove 5; the bottom surface of the clamping plate 4 slides in contact with the top surface of the bearing plate 3.

[0015] The limiting component includes a screw 8 and a locking nut 9. Each slide rod 7 has a through hole 10 along its length in the middle. The through hole 10 is a circular hole. The screw 8 is inserted into the through hole 10. One end of the screw 8 is fixedly connected to the inner end of the slide groove 5, and the other end of the screw 8 extends out of the slide groove 5. The screw 8 on the side of the slide rod 7 away from the center of the support plate is externally threaded with a locking nut 9. The diameter of the through hole 10 is larger than the diameter of the screw 8 and smaller than the circumscribed circle diameter of the locking nut 9. The diameter of the arc surface of the clamping plate 4 corresponds to the diameter of the support plate 3.

[0016] The outer ends of the screws 8 on the multiple limiting members are provided with connecting rings 11. The outer ends of the multiple screws 8 are fixedly connected to the inner ring surface of the connecting rings 11. A connecting rod 12 is provided between two adjacent screws 8. One end of each connecting rod 12 is connected to the circumferential surface of the bearing plate 3, and the other end is connected to the connecting ring 11. The connecting ring 11 can improve the levelness of the screws 8.

[0017] The length of the slide rod 7 corresponds to the length of the slide groove 5. When the inner ends of multiple slide rods 7 are in contact with the inner ends of the slide groove 5, the radial sides of adjacent clamping plates 4 are in contact.

[0018] The opening width of the V-groove 6 is 13mm, and the depth of each V-groove 6 is 8mm. The lower end of the upper V-groove 6 and the upper end of the lower V-groove 6 in the same V-groove group intersect, and the lower end of the lower V-groove 6 in the V-groove group intersects with the bottom surface of the clamping plate. In the prior art, the diameter of the steel bars in the steel mesh used for bridge deck construction is 10mm-12mm, and the V-groove 6 with an opening width of 13mm can be clamped outside the longitudinal or transverse steel bars of the steel mesh. When the locking nuts 9 on multiple limiting members contact the connecting ring 11, and the outer end of each sliding rod 7 contacts the locking nut 9, the distance between the radial side of each clamping plate 4 and the radial side on the adjacent clamping plate 4 is greater than 12mm.

[0019] Before use, rotate the locking nut 9 on each limiting piece to contact the connecting ring 11, and make the outer end of each slide rod 7 contact the locking nut 9. At this time, the distance between one radial side of each clamping plate 4 and the radial side of the adjacent clamping plate 4 is greater than 12mm. A cross channel is formed between the radial sides of the four clamping plates 4, which can accommodate the longitudinal steel bars 13a and the transverse steel bars 13b of the steel mesh 13 at the cross intersection. In use, select the location where the reinforcing mesh 13 needs support, that is, below the intersection of the longitudinal reinforcing bars 13a and the transverse reinforcing bars 13b of the reinforcing mesh 13. If the longitudinal reinforcing bars 13a of the reinforcing mesh 13 are located above the transverse reinforcing bars 13b, the intersection of the longitudinal reinforcing bars 13a and the transverse reinforcing bars 13b of the reinforcing mesh 13 is placed in the cross channel formed by the four clamping plates 4. Then, push the multiple clamping plates 4 towards the center of the bearing plate 3 to limit the cross intersection of the reinforcing mesh 13. Specifically, the clamping plate 4 on the front left side moves towards the center of the bearing plate 3, and the clamping plate 4 drives the connected sliding rod 7 to move along the corresponding sliding groove 5. The V-shaped groove 6 on the upper right side of the clamping plate 4 is engaged with the outer wall of the longitudinal reinforcing bar 13a on the right side of the clamping plate 4, and the V-shaped groove 6 on the lower rear side of the clamping plate 4 is engaged with the outer wall of the transverse reinforcing bar 13b on the rear side of the clamping plate 4. Rotate the locking nut 9 on the outside of the sliding rod 7 so that the locking nut 9 contacts the outer end of the sliding rod 7. At this time, the clamping plate 4 is limited, maintaining the clamping of the transverse and longitudinal reinforcing bars. Similarly, the other three clamping plates 4 move towards the central axis of the bearing plate 3 until the V-shaped groove 6 on the upper left side of the front right clamping plate 4 is engaged with the outer wall of the longitudinal reinforcing bar 13a on the left side of the clamping plate 4, the V-shaped groove 6 on the lower rear side of the clamping plate 4 is engaged with the outer wall of the transverse reinforcing bar 13b on the rear side of the clamping plate 4, and the V-shaped groove 6 on the lower front side of the rear left clamping plate 4 is engaged with the transverse reinforcing bar 13b on the front side of the clamping plate 4. Outside the perimeter wall, the V-shaped groove 6 on the upper right side of the clamping plate 4 is engaged with the perimeter wall of the longitudinal steel bar 13a on the right side of the clamping plate 4. The V-shaped groove 6 on the lower front side of the rear right clamping plate 4 is engaged with the perimeter wall of the transverse steel bar 13b on the front side of the clamping plate 4. The V-shaped groove 6 on the upper left side of the clamping plate 4 is engaged with the perimeter wall of the longitudinal steel bar 13a on the left side of the clamping plate 4. Moreover, the outer end of the sliding rod 7 corresponding to each clamping plate 4 is limited by the locking nut. At this time, the longitudinal steel bar 13a and the transverse steel bar 13b of the steel mesh 13 are both clamped and limited by the V-shaped groove on the clamping plate 4 to prevent the steel mesh 13 from detaching from this utility model.

[0020] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A bridge deck steel mesh paving device, comprising a pad body (1), wherein a plurality of legs (2) are provided on the lower side of the pad body (1); characterized in that, It also includes a support plate (3) and a clamping plate (4). The support plate (3) is fixed on the top of the pad body (1). The top surface of the support plate (3) is evenly recessed with four sliding grooves (5). The sliding grooves (5) are arranged radially. Each sliding groove (5) is provided with a clamping plate (4) on its upper side. The clamping plate (4) is a fan-shaped plate with a central angle of 90 degrees. The tip of the clamping plate (4) faces the central axis of the support plate (3). The two radial sides of the clamping plate (4) are symmetrically provided with V-shaped groove groups. The V-shaped groove group is composed of two upper and lower V-shaped grooves (6). The two ends of each V-shaped groove (6) pass through the arc surface and the tip of the clamping plate (4) respectively. The bottom surface of the clamping plate (4) is connected to a sliding rod (7) that is slidably provided in the corresponding sliding groove (5). The sliding groove (5) is provided with a limiting member to limit the sliding rod (7) from moving away from the center of the support plate (3).

2. The bridge deck steel mesh paving device according to claim 1, characterized in that, The groove (5) is an isosceles trapezoidal groove with an upper opening width smaller than the bottom width, and the outer end of the groove (5) penetrates the circumferential surface of the bearing plate (3); the slide rod (7) is an isosceles trapezoidal rod that matches the groove (5) it belongs to.

3. The bridge deck steel mesh paving device according to claim 2, characterized in that, The limiting component includes a screw (8) and a locking nut (9). Each slide rod (7) has a through hole (10) along its length in the middle. The screw (8) is inserted into the through hole (10). One end of the screw (8) is fixedly connected to the inner end of the slide groove (5), and the other end of the screw (8) extends out of the slide groove (5). The screw (8) on the side of the slide rod (7) away from the center of the bearing plate is externally threaded with a locking nut (9). The diameter of the through hole (10) is larger than the diameter of the screw (8) and smaller than the outer circle diameter of the locking nut (9).

4. A bridge deck mesh laying device according to claim 3, wherein, The screws (8) on the multiple limiting members are provided with connecting rings (11) on their outer ends. The outer ends of the multiple screws (8) are fixedly connected to the inner ring surface of the connecting rings (11). A connecting rod (12) is provided between two adjacent screws (8). One end of each connecting rod (12) is connected to the circumferential surface of the bearing plate (3), and the other end is connected to the connecting ring (11).

5. A bridge deck mesh laying device according to claim 4, wherein, When the inner ends of multiple slide bars (7) are in contact with the inner ends of the slide grooves (5), the radial sides of adjacent clamping plates (4) are in contact.

6. A bridge deck mesh laying device according to claim 5, wherein, The opening width of the V-groove (6) is 13mm, and the depth of each V-groove (6) is 8mm; the lower end of the upper V-groove (6) of the same V-groove group intersects with the upper end of the lower V-groove (6), and the lower end of the lower V-groove (6) in the V-groove group intersects with the bottom surface of the clamping plate.

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