Concrete guardrail top surface anti-cracking forming device

Abstract

The utility model discloses a concrete guardrail top surface anti -cracking forming device, including formwork, fixed frame, pull rod bolt, laying mechanism, formwork is installed on the ground, and fixed frame is fixed on the formwork, and pull rod bolt is fixed through the nut on the fixed frame, and laying mechanism is across between the formwork, and laying mechanism includes support frame, guide rail, stand, horizontal plate, hoist board, and guide rail is fixed on the formwork side wall, and support frame both ends are rotatably connected with gyro wheel, and gyro wheel is located inside guide rail, and stand is installed on support frame, and be equipped with locking groove on the stand side wall, and bolt is connected through the thread on support frame, and bolt one end is engaged in locking groove, and horizontal plate is fixed on the stand one end away from support frame, and hoist board is equipped with a pair, and is symmetrically installed on the horizontal plate of stand two sides, and the position of hoist board close bottom is equipped with limiting post. The utility model can enhance the tensile strength of concrete, and effectively restrain the cracking phenomenon of concrete under the action of external factors such as drying, temperature change.

Description

Technical Field

[0001] This utility model belongs to the field of concrete guardrail pouring technology, and specifically relates to a concrete guardrail top surface anti-cracking molding device. Background Technology

[0002] Currently, the concrete guardrail construction is complete. However, natural environmental factors such as temperature changes, seasonal changes, wind, and rain can damage the concrete and easily cause its surface to crack.

[0003] A search revealed a standardized bridge concrete guardrail formwork with the existing technology announcement number CN219992209U, comprising an outer formwork, an inner formwork, a support system, a fall arrest fence, and a pouring platform. The outer formwork of the concrete guardrail has a notch at the top into which the protective fence can be inserted, and the inner formwork of the concrete guardrail has a notch in the middle into which the pouring platform can be inserted. The inner formwork of the concrete guardrail is connected to the support system by a bolt structure, and the inner and outer formworks of the concrete guardrail are connected by tie rods.

[0004] After searching, the existing technology announcement number CN219690322U bridge deck central concrete guardrail protection device includes parallel guardrail templates, with concrete holding cavities formed between the guardrail templates, a top connecting plate above the guardrail templates, a vertical clamping plate at the lower end of the top connecting plate, a horizontal connecting plate at the upper end of the vertical clamping plate, multiple through holes on the horizontal connecting plate, a central through groove symmetrically arranged about the top connecting plate, and side through grooves on both sides of the central through groove. Bolts connect the top connecting plate and the horizontal connecting plate together.

[0005] The aforementioned patent describes a concrete railing constructed using a template. If not properly cured, the concrete can be damaged by natural environmental factors such as temperature changes, wind, and rain, leading to surface cracks. This requires repairs by construction workers, which in turn affects the strength of the concrete railing. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a concrete guardrail top surface anti-cracking molding device. The fiber mesh belt can enhance the tensile strength of concrete and effectively suppress the cracking phenomenon of concrete due to external factors such as drying and temperature changes.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A concrete guardrail top surface anti-cracking molding device includes a template, a fixing frame, tie rod bolts, a laying mechanism, and diagonal braces. The template is installed on the ground, the fixing frame is fixed on the template, and the tie rod bolts are fixed on the fixing frame by nuts. The laying mechanism spans between the templates. The diagonal braces are inclined and fixed between the template and the ground, and the diagonal braces can support and fix the template.

[0009] The laying mechanism includes a support frame, guide rails, columns, horizontal plates, and lifting plates. The guide rails are fixed to the side wall of the template. Rollers are rotatably connected to both ends of the support frame, and the rollers are located inside the guide rails. The columns are installed on the support frame, and locking grooves are provided on the side walls of the columns. Bolts are threadedly connected to the support frame, and one end of the bolts is engaged in the locking grooves, thereby fixing the columns to the support frame. The horizontal plates are fixed to the end of the columns away from the support frame. A pair of lifting plates are provided and are symmetrically installed on the horizontal plates on both sides of the columns. Limiting posts are provided near the bottom of the lifting plates.

[0010] The column and the horizontal plate are equipped with an adjustment mechanism, which includes a threaded rod, bevel gear I, a transmission rod, bevel gear II, and a knob. A pair of threaded rods are installed on both sides of the column, with their ends rotatably connected to the end of the horizontal plate and the side wall of the column via bearings. The lifting plate is connected to the threaded rods via threads. An installation groove is provided near the bottom of the column. A pair of bevel gears I are provided, both located within the installation groove of the column, and bevel gear I is connected to one end of the corresponding threaded rod. The transmission rod passes through the column, with one end located at the top of the column and the other end located within the installation groove. Bevel gear II is connected to the end of the transmission rod located within the installation groove, and bevel gear II meshes with bevel gear I. The knob is fixed to the end of the transmission rod located at the top of the column.

[0011] The support frame has a handle on its upper side wall.

[0012] The column sidewall is also provided with threaded holes and reinforcing ribs. Several threaded holes are evenly distributed on the column sidewall. The reinforcing ribs are fixed to the column and support frame by bolts. The bolts pass through the reinforcing ribs and are threaded into the corresponding threaded holes.

[0013] The support frame is provided with a guide groove, one end of the connecting plate is movably connected in the guide groove, and the other end is provided with a placement groove, in which a cutting blade is rotatably connected.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1) First, fix the formwork, and then further fix it with fixing brackets and tie rod bolts; then install the laying mechanism on the formwork; pour concrete into the gaps between the formwork and vibrate it; after vibration, remove the laitance produced by vibration, add fresh concrete, and then lightly vibrate to level it; then lay the fiber mesh on the top surface of the concrete using the laying mechanism, and smooth it with a finishing trowel multiple times; then lay the plastic wrap on the top of the concrete guardrail using the laying mechanism for curing before demolding; after the concrete guardrail has solidified, demold it and use geotextile covering and spraying for curing;

[0016] 2) First, install the fiber mesh tape roll on the limiting post of the hoisting plate. Then, drive the column, horizontal plate and hoisting plate to move along the guide rail through the support frame, so as to lay the fiber mesh tape on the top surface of the concrete guardrail. The fiber mesh tape can enhance the tensile strength of the concrete and effectively inhibit the cracking of the concrete due to external factors such as drying and temperature changes.

[0017] 3) By rotating the knob, the transmission rod is driven to rotate. The transmission rod drives the bevel gear I to rotate through bevel gear II. Bevel gear I drives the threaded rod to rotate. The threaded rod drives the lifting plate to move along the horizontal plate through the thread. Then, the fiber mesh tape roll is placed between the lifting plates. The knob is rotated in the opposite direction, so that the limiting post on the lifting plate is inserted into the center of the fiber mesh tape roll. The fiber mesh tape roll is installed on the limiting post and can rotate along the limiting post. Moreover, the movement of the lifting plate can lay fiber mesh tape rolls of different widths. The fiber mesh tape can enhance the tensile strength of concrete and effectively inhibit the cracking of concrete due to external factors such as drying and temperature changes. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the structure of a concrete guardrail top surface anti-cracking molding device according to the present invention;

[0019] Appendix Figure 2 This is a schematic diagram of the laying mechanism in a concrete guardrail top surface anti-cracking molding device of this utility model;

[0020] Appendix Figure 3 It is attached Figure 1 A magnified structural diagram of part A in the diagram;

[0021] Appendix Figure 4 This is a schematic diagram of the adjustment mechanism in a concrete guardrail top surface anti-cracking molding device of this utility model;

[0022] Appendix Figure 5 This is a schematic diagram of the cutting blade in a concrete guardrail top surface anti-cracking molding device of this utility model;

[0023] In the diagram: 1. Template; 2. Fixing frame; 3. Tie rod bolt; 4. Laying mechanism; 401. Support frame; 4011. Handle; 4012. Guide groove; 4013. Roller; 402. Guide rail; 403. Column; 4031. Locking groove; 4032. Threaded hole; 4033. Reinforcing rib; 4034. Mounting groove; 404. Horizontal plate; 405. Lifting plate; 4051. Limiting post; 406. Adjustment mechanism; 4061. Threaded rod; 4062. Bevel gear I; 4063. Transmission rod; 4064. Bevel gear II; 4065. Knob; 407. Connecting plate; 4071. Placement groove; 408. Cutting blade; 5. Diagonal brace. Detailed Implementation

[0024] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-5 The technical solution of this utility model will be further described in detail below.

[0025] A concrete guardrail top surface anti-cracking molding device includes a template 1, a fixing frame 2, tie rod bolts 3, a laying mechanism 4, and diagonal braces 5. The template 1 is installed on the ground, the fixing frame 2 is fixed to the template 1, and the tie rod bolts 3 are fixed to the fixing frame 2 by nuts. The laying mechanism 4 spans across the templates 1, and the diagonal braces 5 are inclined and fixed between the template 1 and the ground. The diagonal braces 5 can support and fix the template 1, which is existing technology and will not be described in detail. First, the template 1 is fixed, and then further... The first step is to fix the concrete in place; then the laying mechanism 4 is installed on the formwork 1; concrete is poured into the gaps between the formwork 1 and vibrated; after vibration, the laitance generated by vibration is removed and fresh concrete is added, and then light vibration is performed to level it; then the fiber mesh is laid on the top surface of the concrete through the laying mechanism 4 and smoothed multiple times with a finishing trowel; then the plastic wrap is laid on the top of the concrete guardrail through the laying mechanism 4 for curing before demolding; after the concrete guardrail has solidified, the formwork is removed and curing is carried out by covering with geotextile and spraying.

[0026] The laying mechanism 4 includes a support frame 401, a guide rail 402, a column 403, a horizontal plate 404, and a lifting plate 405. The guide rail 402 is fixed to the side wall of the template 1. Rollers 4013 are rotatably connected to both ends of the support frame 401, and the rollers 4013 are located inside the guide rail 402. The column 403 is installed on the support frame 401, and a locking groove 4031 is provided on the side wall of the column 403. Bolts are threadedly connected to the support frame 401, and one end of the bolt is engaged in the locking groove 4031, thereby fixing the column 403 to the support frame 401. The horizontal plate 404 is fixed to the end of the column 403 away from the support frame 401. The lifting plate 405 is provided in pairs, and... The fiber mesh tape is installed on the horizontal plates 404 on both sides of the column 403; the lifting plate 405 is provided with a limiting post 4051 near the bottom; firstly, the fiber mesh tape is installed on the limiting post 4051 of the lifting plate 405, and the column 403, horizontal plate 404 and lifting plate 405 are moved along the guide rail 402 by the support frame 401, so as to lay the fiber mesh tape on the top surface of the concrete guardrail; the fiber mesh tape can enhance the tensile strength of the concrete and effectively inhibit the cracking phenomenon of the concrete due to external factors such as drying and temperature changes; the support frame 401 can rotate around the roller 4013, so as to lower the laying mechanism 4 and facilitate the passage of the tie rod bolt 3.

[0027] The column 403 and the horizontal plate 404 are equipped with an adjustment mechanism 406, which includes a threaded rod 4061, a bevel gear I 4062, a transmission rod 4063, a bevel gear II 4064, and a knob 4065. A pair of threaded rods 4061 are provided and installed on both sides of the column 403. The two ends of the threaded rods 4061 are rotatably connected to the end of the horizontal plate 404 and the side wall of the column 403 respectively via bearings. The lifting plate 405 is connected to the threaded rods 4061 via threads. The adjustment mechanism 406 includes a threaded rod 4061 near the bottom of the column 403. A mounting groove 4034 is provided; a pair of bevel gears I 4062 are provided, both located within the mounting groove of the column 403; bevel gears I 4062 are connected to one end of the corresponding threaded rod 4061; a transmission rod 4063 passes through the column 403, with one end of the transmission rod 4063 located at the top of the column 403 and the other end located within the mounting groove 4034; bevel gear II 4064 is connected to the end of the transmission rod 4063 located within the mounting groove 4034, and bevel gear II 4064 meshes with bevel gears I 4062; a knob 4065 is fixed. The transmission rod 4063 is fixed at one end of the column 403; the threaded rod 4061 is equipped with a protective cover to prevent impurities and dust in the air from affecting the threaded rod and the lifting plate; by turning the knob 4065, the transmission rod 4063 is driven to rotate, and the transmission rod 4063 drives the bevel gear I 4062 to rotate through the bevel gear II 4064, and the bevel gear I 4062 drives the threaded rod 4061 to rotate, and the threaded rod 4061 drives the lifting plate 405 to move along the horizontal plate 404 through the thread, and then the fiber web is moved. The fiber mesh roll is placed between the lifting plates 405. The knob 4065 is rotated in the opposite direction, so that the limiting post 4051 on the lifting plate 405 is inserted into the center of the fiber mesh roll. The fiber mesh roll is installed on the limiting post 4051 and can rotate along the limiting post 4051. Moreover, the lifting plate 405 can be moved to lay fiber mesh rolls of different widths. The fiber mesh can enhance the tensile strength of concrete and effectively inhibit the cracking of concrete due to external factors such as drying and temperature changes.

[0028] The support frame 401 has a handle 4011 on its upper side wall for easy movement and carrying of the laying mechanism.

[0029] The side wall of the column 403 is also provided with threaded holes 4032 and reinforcing ribs 4033. Several threaded holes 4032 are evenly distributed on the side wall of the column 403. The reinforcing ribs 4033 are fixed to the column 403 and the support frame 401 by bolts. The bolts pass through the reinforcing ribs 4033 and are threaded into the threaded holes 4032. The reinforcing ribs 4033 can fix the column 403. By changing the reinforcing ribs 4033 and fixing them to different positions of the threaded holes 4032 on the column 403, the height of the column 403, the horizontal plate 404, and the lifting plate 405 can be adjusted to accommodate fiber mesh rolls of different thicknesses.

[0030] The support frame 401 is provided with a guide groove 4012. One end of the connecting plate 407 is movably connected in the guide groove 4012, and the other end is provided with a placement groove 4071. A cutting blade 408 is rotatably connected inside the placement groove 4071. The cutting blade 408 is rotated from the placement groove 4071 to the outside. The connecting plate 407 is pushed to move, and the connecting plate 407 drives the cutting blade 408 to move, thereby cutting the fiber mesh tape. This further adapts the length of the fiber mesh tape to the concrete guardrail.

[0031] A concrete guardrail top surface anti-cracking molding device operates as follows: First, the template 1 is fixed, and then further fixed by the fixing frame 2 and tie rod bolts 3; then, the laying mechanism 4 is installed on the template 1; concrete is poured into the gaps between the templates 1 and vibrated; after vibration, the laitance generated during vibration is removed, fresh concrete is added, and then light vibration is performed to level the surface; then, the fiber mesh is laid on the top surface of the concrete through the laying mechanism 4 and smoothed multiple times with a finishing trowel; then, the plastic wrap is laid on the top of the concrete guardrail through the laying mechanism 4 for curing before demolding; after the concrete guardrail has solidified, the demolding is removed and curing is carried out by covering with geotextile and spraying.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] In the description of this utility model, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting; movable connection methods include, but are not limited to, sliding connection, rotating connection and threaded connection. The connection method to achieve the desired effect should be selected according to the application of the solution.

[0034] In summary, including but not limited to the transmission system, a protective cover is provided according to the actual installation location to avoid wear or damage to the power system and transmission system caused by the external environment, and to further ensure the normal operation of the power system and transmission system.

[0035] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A concrete guardrail top surface anti-cracking molding device, comprising a template, a fixing frame, tie rod bolts, a laying mechanism, and diagonal bracing; characterized in that... The formwork is installed on the ground, the fixing frame is fixed to the formwork, and the tie rod bolts are fixed to the fixing frame with nuts; the laying mechanism spans between the formwork; the diagonal brace is fixed at an angle between the formwork and the ground; The laying mechanism includes a support frame, guide rails, columns, horizontal plates, and lifting plates. The guide rails are fixed to the side walls of the template. Rollers are rotatably connected to both ends of the support frame, and the rollers are located inside the guide rails. The columns are installed on the support frame, and locking grooves are provided on the side walls of the columns. Bolts are threadedly connected to the support frame, and one end of the bolt is engaged in the locking groove. The horizontal plates are fixed to the end of the columns away from the support frame. There are a pair of lifting plates, which are symmetrically installed on the horizontal plates on both sides of the columns. Limiting posts are provided near the bottom of the lifting plates. The column and the horizontal plate are equipped with an adjustment mechanism, which includes a threaded rod, bevel gear I, a transmission rod, bevel gear II, and a knob. A pair of threaded rods are installed on both sides of the column, with their ends rotatably connected to the end of the horizontal plate and the side wall of the column via bearings. The lifting plate is connected to the threaded rods via threads. A mounting groove is provided near the bottom of the column. A pair of bevel gears I are provided, both located within the mounting groove of the column. Bevel gear I is connected to one end of the corresponding threaded rod. The transmission rod passes through the column, with one end located at the top of the column and the other end within the mounting groove. Bevel gear II is connected to the end of the transmission rod located within the mounting groove, and bevel gear II meshes with bevel gear I. The knob is fixed to the end of the transmission rod located at the top of the column.

2. The anti-cracking molding device for the top surface of a concrete guardrail according to claim 1, characterized in that... Handles are provided on the upper side wall of the support frame.

3. The anti-cracking molding device for the top surface of a concrete guardrail according to claim 1, characterized in that... The side wall of the column is also provided with threaded holes and reinforcing ribs. Several threaded holes are evenly distributed on the side wall of the column. The reinforcing ribs are fixed to the column and support frame by bolts. The bolts pass through the reinforcing ribs and are connected to the corresponding threaded holes by threads.

4. The anti-cracking molding device for the top surface of a concrete guardrail according to claim 1, characterized in that... The support frame is provided with a guide groove, one end of the connecting plate is movably connected in the guide groove, and the other end is provided with a placement groove, in which a cutting blade is rotatably connected.

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