A mobile upper and lower end guardrail template synchronous lofting device

Abstract

The utility model relates to a mobile upper and lower end guardrail template synchronous lofting device, including vertical pole, both sides of vertical pole all are fixed with connecting rod, the end of two connecting rods all are fixed with the support foot unit that is herringbone distribution, the alignment plate that is 0 scale datum plane is equipped with in the one end bottom of support foot unit, the bottom of the other end of support foot unit installs two rotating wheels convenient for lofting device movement, and the bottom surface of alignment plate and the bottom surface of rotating wheel are on the same plane, the upper end of vertical pole is fixed with crosspiece, and two line hammer units are installed on crosspiece, two line hammer units slip along the length direction of crosspiece, and are used for measuring the position of template top and are used for measuring the position of template bottom, the utility model avoids the problem that bridge crash barrier template top cannot be positioned accurately, through the lofting calibration of template top and bottom that two line hammer units located in front and back end carry out synchronously, the line type of accurate control crash barrier bottom and top.

Description

Technical Field

[0001] This utility model belongs to the field of concrete construction technology in construction engineering, and in particular relates to a mobile upper and lower guardrail formwork synchronous layout device. Background Technology

[0002] In traditional bridge crash barrier steel formwork installation, the common practice is to offset the bottom edge of the guardrail by a certain distance before laying out the marked lines, and then using a measuring tape to re-measure and confirm the bottom position of the formwork on site, while ensuring that the formwork does not obscure the marked lines for subsequent verification. However, modern bridge crash barriers are often irregularly shaped. This method can only ensure the top edge of the formwork is vertical after calibrating and confirming the bottom position, but it cannot measure the top position. As a result, it is difficult to accurately control the position of the upper formwork of the guardrail, leading to uneven lines and poor appearance quality at the top of the guardrail. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a mobile upper and lower guardrail template synchronous layout device. In order to enable the upper and lower ends of the bridge crash guardrail template to accurately control the position and line shape according to the layout, the crash guardrail line shape is smooth, the aesthetics of the finished guardrail is improved, the construction quality is guaranteed and the cost is saved.

[0004] The purpose of this utility model is achieved through the following technical solution: This mobile upper and lower guardrail template synchronous layout device includes a vertical rod; connecting rods are fixed on both sides of the vertical rod, and support foot units distributed in a V-shape are fixed at the ends of the two connecting rods. One end of the support foot unit is provided with an alignment plate as a 0-scale reference surface, and two rotating wheels are installed at the bottom of the other end of the support foot unit to facilitate the movement of the layout device. The bottom surface of the alignment plate and the bottom surface of the rotating wheels are on the same plane. A horizontal rod is fixed at the upper end of the vertical rod, and two plumb bob units are installed on the horizontal rod. The two plumb bob units slide along the length direction of the horizontal rod and are used to measure the position of the top of the template and the position of the bottom of the template.

[0005] The beneficial effects of this utility model are as follows: Compared with the prior art, the use of a mobile upper and lower bridge guardrail template synchronous layout device avoids the problem of the top of the bridge crash guardrail template being unable to be accurately positioned. By using two plumb bob units located at the front and rear ends to synchronously perform the layout and calibration of the top and bottom of the template, the line shape of the bottom and top of the crash guardrail can be accurately controlled.

[0006] Preferably, the support foot unit includes a front support foot and a rear support foot, the alignment plate is fixed between the bottoms of the two front support feet, and the two rotating wheels are respectively installed on the bottoms of the two rear support feet; the above structure facilitates the movement of the support foot unit and its placement during the measurement process.

[0007] Preferably, the crossbar is provided with a slot and a scale line, the scale line is located on the side of the slot, and the crossbar is also provided with a 0 scale line, the 0 scale line being aligned with the 0 scale reference surface of the alignment plate; the above structure facilitates the measurement and alignment of the plumb bob unit, achieving a smooth line shape for the crash barrier.

[0008] Preferably, the plumb bob unit is divided into a front plumb bob unit for measuring the top position of the template and a rear plumb bob unit for measuring the bottom position of the template. The plumb bob unit includes a T-shaped buckle, a plumb bob, and a cycloid. The T-shaped buckle is placed in the slot and can slide back and forth along the slot. The upper end of the T-shaped buckle is provided with a pull ring, and the lower end of the T-shaped buckle is provided with a hanging ring. The plumb bob is fixed to the hanging ring by the cycloid, and the plumb bob height of the front plumb bob unit is higher than that of the rear plumb bob unit. Through the above structure, the front plumb bob unit and the rear plumb bob unit can slide back and forth in the slot through the pull ring, and the plumb bob height of the front plumb bob unit is higher than that of the rear plumb bob unit. This plumb bob setting is due to the structure of the crash barrier, which facilitates precise control of the position and line shape.

[0009] Preferably, the T-shaped buckle has a plumb bob scale guideline on its side, and the plumb bob scale guideline is located on the side of the scale line; this makes it easy for construction workers to observe the position of the front plumb bob unit and the rear plumb bob unit moving in the slot in a timely manner.

[0010] Preferably, a diagonal brace is fixed at the corner between the vertical bar and the horizontal bar; this makes the entire device stronger and thus more stable during the layout process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the synchronous layout device of this utility model.

[0012] Figure 2 This is a schematic diagram of part of the synchronous layout device of this utility model. Figure 1 .

[0013] Figure 3 This is a schematic diagram of part of the synchronous layout device of this utility model. Figure 2 .

[0014] Figure 4 This is a schematic diagram of the actual application structure of this utility model.

[0015] The labels in the attached diagram are as follows: 1. Vertical rod; 2. Connecting rod; 3. Support leg unit; 4. Alignment plate; 5. Rotating wheel; 6. Horizontal bar; 7. Plumb bob unit; 8. Guardrail template; 9. Diagonal brace; 10. Beam plate; 11. Ink line; 12. Measuring tape; 31. Front support leg; 32. Rear support leg; 41. 0-gradient reference surface; 61. Slot; 62. Scale line; 63. 0-gradient line; 71. Front plumb bob unit; 72. Rear plumb bob unit; 73. T-shaped buckle; 74. Plumb bob; 75. Cycloidal line; 76. Pull ring; 77. Lifting ring; 78. Plumb bob scale guideline. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings: as shown in the drawings Figures 1 to 4 As shown, this utility model includes a vertical rod 1; connecting rods 2 are fixed on both sides of the vertical rod 1, and support foot units 3 arranged in a V-shape are fixed at the ends of the two connecting rods 2. One end of the support foot unit 3 is provided with an alignment plate 4 serving as a 0-scale reference surface 41, and the other end of the support foot unit 3 is equipped with two rotating wheels 5 to facilitate the movement of the layout device. The bottom surface of the alignment plate 4 and the bottom surface of the rotating wheels 5 are on the same plane. A horizontal rod 6 is fixed at the upper end of the vertical rod 1, and two plumb bob units 7 are installed on the horizontal rod 6. The two plumb bob units 7 slide along the length of the horizontal rod 6 and are used to measure the position of the top of the guardrail template 8 and the position of the bottom of the guardrail template 8, so as to accurately determine the position of the guardrail template 8, thereby achieving the effects of saving costs, improving construction quality, and speeding up construction progress.

[0017] The support leg unit 3 includes a front support leg 31 and a rear support leg 32. The alignment plate 4 is fixed between the bottoms of the two front support legs 31, and two rotating wheels 5 are respectively installed on the bottoms of the two rear support legs 31.

[0018] The crossbar 6 is provided with a slot 61 and a scale line 62. The scale line 62 is located on the side of the slot 61, and the crossbar 6 is also provided with a 0 scale line 63. The 0 scale line 63 is aligned vertically with the 0 scale reference surface 41 of the alignment plate 4.

[0019] The plumb bob unit 7 is divided into a front plumb bob unit 71 for measuring the top position of the guardrail template 8 and a rear plumb bob unit 72 for measuring the bottom position of the guardrail template 8. The plumb bob unit 7 includes a T-shaped buckle 73, a plumb bob 74 and a cycloidal line 75. The T-shaped buckle 73 is placed in the slot 61 and can slide back and forth along the slot 61. The upper end of the T-shaped buckle 73 is provided with a pull ring 76 and the lower end of the T-shaped buckle 73 is provided with a hanging ring 77. The plumb bob 74 is fixed on the hanging ring 77 by the cycloidal line 75. The height of the plumb bob 74 can be freely adjusted, and the height of the plumb bob 74 in the front plumb bob unit 71 is higher than the height of the plumb bob 74 in the rear plumb bob unit 72.

[0020] The T-shaped buckle 73 has a plumb bob scale guideline 78 on its side, and the plumb bob scale guideline 78 is located on the side of the scale line 62.

[0021] A diagonal brace 9 is fixed at the corner between the vertical bar 1 and the horizontal bar 6.

[0022] This utility model, "A Mobile Synchronous Layout Device for Upper and Lower Bridge Guardrail Templates," was successfully applied in the scaffolding construction of the Second Ring Road Smart Expressway Reconstruction Project (Kezhu Expressway to S211 Provincial Highway Connection Line) - Section III (North Side of Dongsan Road - East Side of Genta East Road). The usage steps are as follows: 1) After offsetting the bottom edge of the guardrail template 8 inward by a certain distance, lay it out on the beam slab 10 and use the ink line to pop out the layout ink line 11; 2) Align the 0-scale reference surface 41 with the layout ink line 11 to position the layout device; 3) Calculate the positions of the front plumb bob unit 71 and the rear plumb bob unit 72 according to the offset distance and the size of the guardrail template 8, and move the T-shaped buckle 73 to the corresponding scale line 62 position; 4) Position the top and bottom of guardrail template 8 respectively; 5) The top of the guardrail template 8 is directly aligned with the plumb bob 74 of the front plumb bob unit 71, and the distance between the bottom of the guardrail template 8 and the plumb bob 74 of the rear plumb bob unit 72 is measured with a measuring tape 12.

[0023] The position of the rear plumb bob is determined by moving the buckle along the upper scale line of the horizontal bar based on the offset distance of the layout line, and the bottom position of the guardrail template is measured. The position of the front plumb bob is determined according to the size of the guardrail template, and the top of the template is measured. This allows for simultaneous layout and measurement of the top and bottom of the bridge crash barrier template, precise control of the guardrail template line shape, and improved construction quality, thereby achieving the effects of cost saving and accelerating construction progress.

[0024] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A mobile upper and lower guardrail template synchronous layout device, comprising a vertical rod (1); characterized in that: Both sides of the vertical rod (1) are fixed with connecting rods (2), and the ends of the two connecting rods (2) are fixed with support foot units (3) arranged in a V-shape. One end of the support foot unit (3) is provided with an alignment plate (4) as a zero scale reference surface (41). The other end of the support foot unit (3) is equipped with two rotating wheels (5) to facilitate the movement of the layout device. The bottom surface of the alignment plate (4) and the bottom surface of the rotating wheel (5) are on the same plane. The upper end of the vertical rod (1) is fixed with a horizontal rod (6). Two plumb bob units (7) are installed on the horizontal rod (6). The two plumb bob units (7) slide along the length direction of the horizontal rod (6) and are used to measure the position of the top of the guardrail template (8) and the position of the bottom of the guardrail template (8).

2. The mobile upper and lower guardrail template synchronous layout device according to claim 1, characterized in that: The support foot unit (3) includes a front support foot (31) and a rear support foot (32). The alignment plate (4) is fixed between the bottoms of the two front support feet (31), and the two rotating wheels (5) are respectively installed on the bottoms of the two rear support feet (32).

3. The mobile upper and lower guardrail template synchronous layout device according to claim 1, characterized in that: The crossbar (6) is provided with a slot (61) and a scale line (62). The scale line (62) is located on the side of the slot (61), and the crossbar (6) is also provided with a 0 scale line (63). The 0 scale line (63) is aligned with the 0 scale reference surface (41) of the alignment plate (4).

4. The mobile upper and lower guardrail template synchronous layout device according to claim 3, characterized in that: The plumb bob unit (7) is divided into a front plumb bob unit (71) for measuring the top position of the guardrail template (8) and a rear plumb bob unit (72) for measuring the bottom position of the guardrail template (8). The plumb bob unit (7) includes a T-shaped buckle (73), a plumb bob (74) and a cycloid (75). The T-shaped buckle (73) is placed in the slot (61) and can slide back and forth along the slot (61). The upper end of the T-shaped buckle (73) is provided with a pull ring (76) and the lower end of the T-shaped buckle (73) is provided with a hanging ring (77). The plumb bob (74) is fixed on the hanging ring (77) by the cycloid (75), and the height of the plumb bob (74) of the front plumb bob unit (71) is higher than the height of the plumb bob (74) of the rear plumb bob unit (72).

5. The mobile upper and lower guardrail template synchronous layout device according to claim 4, characterized in that: The T-shaped buckle (73) has a plumb line (78) on its side, and the plumb line (78) is located on the side of the scale line (62).

6. The mobile upper and lower guardrail template synchronous layout device according to claim 1, characterized in that: A diagonal brace (9) is fixed at the corner between the vertical rod (1) and the horizontal rod (6).

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