A steel bar spacing marking device and construction method

Abstract

The application provides a steel bar spacing marking device and a construction method, and belongs to the technical field of building construction; the device comprises a rolling disc assembly, a push rod and a marking box; the rolling disc assembly is provided with a rolling surface, and the rolling surface is provided with a plurality of marking holes; the marking box is detachably connected to the rolling disc assembly and is provided with ink outlets penetrating the marking holes; one end of the push rod is rotatably connected to the rotation center of the rolling disc assembly; the steel bar spacing marking device can accurately control the spacing between the markings by the cooperation of the rolling disc assembly and the marking box; the rolling disc assembly is pushed to roll by the push rod, so that the markings arranged along a straight line can be quickly formed, the operation difficulty is reduced, the precision of the steel bar marking is ensured, and the efficiency of the steel bar spacing marking is significantly improved.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and in particular relates to a rebar spacing marking device and construction method. Background Technology

[0002] In building construction, the marking of rebar spacing directly affects the accuracy of rebar position and is a crucial factor influencing the structural performance of a building. Currently, rebar spacing marking is done manually using a ruler and marking at fixed points. When marking large components such as beams and columns, this typically requires two people working together, repeatedly positioning and marking each point. This process is cumbersome, labor-intensive, and inefficient. Furthermore, the accuracy of the marking is affected by the workers' experience, making it difficult to control positioning errors and prone to large-scale deviations. Subsequent corrections require significant time and cost, severely impacting construction progress. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a rebar spacing marking device and construction method, which is easy to operate, has high accuracy of rebar marking, and improves the efficiency of rebar spacing marking.

[0004] The technical solution adopted in this invention is: a rebar spacing marking device, including a roller assembly, a push rod, and a marking box; the roller assembly is provided with a rolling surface, and the rolling surface is provided with a plurality of marking holes; the marking box is detachably connected to the roller assembly and is provided with an ink outlet communicating with the marking holes; one end of the push rod is rotatably connected to the rotation center of the roller assembly.

[0005] Furthermore, the roller assembly is provided with a mounting groove, the opening of which faces one side of the rolling surface in the width direction; the marking box can be selectively embedded in the mounting groove and filled with an ink-absorbing sponge; the mounting groove is connected to the marking port.

[0006] Furthermore, the roller assembly also includes rollers, roller shafts, and rolling elements, with the rollers arranged opposite to each other; the roller shaft is connected to the center of the two rollers, and one end of the roller shaft is provided with a connecting end, which protrudes outward from the roller and is rotatably connected to the push rod; the rolling element is connected to the edge of the two rollers to define the rolling surface.

[0007] Furthermore, one of the rollers has the opening and defines the mounting groove with the other roller.

[0008] Furthermore, the push rod includes a connecting rod and a bearing, the bearing including a bushing and a spindle; one end of the connecting rod is connected to the bushing, and the other end is provided with a handle; the spindle is connected to the roller shaft.

[0009] Furthermore, it also includes a positioning disk, which is detachably connected to the roller disk away from the push rod; the center of the positioning disk is aligned with the center of the roller disk, and its outer edge protrudes from the roller disk to form a limiting portion.

[0010] Furthermore, the limiting part includes a guide slope, which is disposed close to the rolling surface and forms an obtuse angle with the rolling surface.

[0011] Furthermore, the included angle is 102° to 108°, and the width of the rolling surface is 28mm to 32mm.

[0012] Furthermore, the push rod is a telescopic rod.

[0013] The construction method for using the above-mentioned rebar spacing marking device includes the following steps:

[0014] S1. Selectively install the marking boxes in the mounting groove according to the spacing of the reinforcing bars;

[0015] S2. Inject ink into the marking box and adjust the height of the ink-absorbing sponge protruding from the marking hole;

[0016] S3. Select whether to install a positioning plate based on the calibration object;

[0017] S4. Push the roller assembly to roll and mark the lines.

[0018] The advantages and positive effects of this invention are:

[0019] (1) This application utilizes the combination of the roller assembly and the marking box to accurately control the spacing between the formed marks according to the marking requirements of different rebar spacing; by using the push rod to push the roller assembly to roll, marks arranged in a straight line can be quickly formed on the marking object, reducing the difficulty of operation, ensuring the accuracy of rebar marking, and significantly improving the efficiency of rebar spacing marking.

[0020] (2) By setting up a detachable marking box, the marking spacing can be adjusted quickly and easily according to the marking requirements of different rebar spacing. It also makes the installation and assembly of the marking box more convenient and quick, which is conducive to the installation, dismantling and maintenance of the marking box.

[0021] (3) By setting a positioning plate, it is possible to choose whether to install the positioning plate according to the characteristics of the calibrated object, so as to achieve rolling anti-deviation; ensuring that the device can be applied to various construction scenarios and achieving good versatility;

[0022] (4) It is easy to use and control, and can be operated by a single person; it has a simple structure, reliable connection, and is easy to manufacture. Attached Figure Description

[0023] Figure 1This is a front view of the structure of a specific embodiment of the present invention;

[0024] Figure 2 This is a structural side view of a specific embodiment of the present invention;

[0025] In the picture:

[0026] 1. Positioning plate; 2. Anchor bolt; 3. Marking box; 4. Handle; 5. Connecting rod; 6. Roller; 7. Roller shaft; 8. Rolling part; 81. Marking hole; 9. Support rod. Detailed Implementation

[0027] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0028] like Figure 1 , Figure 2 As shown in the figure, this embodiment of the invention proposes a rebar spacing marking device, including a roller assembly, a marking box 3, and a push rod. The roller assembly has a rolling surface for rolling connection with the object to be marked for rebar spacing marking, and can roll along a straight line on the surface of the object. The rolling surface has a plurality of marking holes 81, which can contact the object at set intervals by rotating the rolling surface. The marking box 3 is detachably connected to the roller assembly and has an ink outlet that communicates with the marking holes 81. The box contains ink that can be dyed, and the ink can seep out along the ink outlet and the marking holes 81, leaving marks on the object. The distance between adjacent marks is the rebar spacing. One end of the push rod is rotatably connected to the rotation center of the roller assembly, and can be held by hand to drive the roller assembly to roll around the rotation center, so as to realize continuous marking of the object.

[0029] In this embodiment, the calibration objects include common building structures or components such as columns, beams, floor slabs, composite slabs, floor decking, reinforcing bars, and formwork. The rolling surface is a cylindrical surface that can roll and connect with the calibration objects, and the roller assembly moves along a set direction, so that the marks left on the calibration objects are arranged in a straight line to form a reference straight line. When the reinforcing bars are tied, each reinforcing bar is aligned with the corresponding mark on the reference straight line, which can effectively ensure the accuracy of the reinforcing bar spacing.

[0030] The aforementioned marking hole 81 can be one or more; when there is one marking hole 81, the spacing between adjacent markings is the circumference of the rolling surface; when there are multiple marking holes 81, the multiple marking holes 81 are evenly distributed along the circumference of the rolling surface, and the spacing between adjacent markings is the distance between the marking holes 81 that are connected to the ink outlet along the circumference of the rolling surface; the marking box 3 can be selectively installed at the position corresponding to the marking hole 81. By controlling the number and position of the marking box 3, the spacing between the formed markings can be precisely controlled to meet the marking requirements of different rebar spacings.

[0031] Through the above technical solution, by using the cooperation of the roller assembly and the marking box 3, the spacing between the formed marks can be precisely controlled according to the marking requirements of different rebar spacings; by using the push rod to drive the roller assembly to rotate, marks arranged in a straight line can be quickly formed on the marking object, reducing the difficulty of operation, ensuring the accuracy of rebar marking, and significantly improving the efficiency of rebar spacing marking.

[0032] Furthermore, in this embodiment, the roller assembly is provided with a mounting groove, the opening of which faces the side of the rolling surface width direction; the marking box 3 can be selectively embedded in the mounting groove and filled with ink-absorbing sponge; the mounting groove communicates with the marking opening. The above-mentioned mounting groove makes the installation and assembly of the marking box 3 more convenient and quick, which is conducive to the installation, disassembly and maintenance of the marking box 3 and ensures that the marking box 3 has a good marking effect; at the same time, the mounting groove and the marking opening correspond one-to-one, and the marking box 3 can be installed in the corresponding mounting groove as needed to achieve control of the marking spacing.

[0033] In one specific embodiment, the roller assembly is provided with a plurality of mounting slots, which are evenly arranged around its rotation center; the mounting slots are located at the edge of the roller assembly and have openings facing one side of the width direction of the rolling surface; a marking hole 81 is provided at the junction of the mounting slot and the rolling surface.

[0034] Preferably, the marking box 3 is a box structure with a triangular outer contour and an internal cavity filled with an ink-absorbing sponge; an ink outlet communicating with the cavity is opened at one corner of the marking box 3; the mounting groove is a groove structure with a triangular cross section, the shape of the marking box 3 is adapted to the mounting groove, and it can be inserted into the mounting groove through the opening; when installing the marking box 3, the ink outlet of the marking box 3 faces the marking hole 81.

[0035] The opening is equipped with a pressure pad, which has good deformation recovery performance. The outline of the marking box 3 is slightly smaller than the opening, so that the pressure pad can be deformed by compression and thus embedded in the mounting groove. It is stably fixed in the mounting groove by relying on the friction between itself and the pressure pad. The marking box 3 can be moved out of the mounting groove by applying external force to it. For example, the end face of the marking box 3 facing the opening is equipped with a pull ring. The operator can easily remove the marking box 3 by applying a pulling force to the pull ring.

[0036] Furthermore, in this embodiment of the application, the roller assembly also includes a roller 6, a roller shaft 7, and a rolling element 8. The roller 6 are arranged opposite to each other. The roller shaft 7 is connected to the center of the two rollers 6, and one end of it is provided with a connecting end. The connecting end protrudes outward from the roller 6 and is rotatably connected to the push rod. The rolling element 8 is connected to the edge of the two rollers 6 to define the rolling surface.

[0037] The roller 6 is disc-shaped, and the rolling element 8 has a rolling surface. Its two ends are respectively connected to the circumference of the roller 6, and the three are connected to form a hollow cylindrical structure. The roller shaft 7 is perpendicularly connected to the roller 6. It can be connected at one end to the center of a disc and the other end passes through the center of another disc to form a connecting end; or both ends can pass through the discs and one end can be used as the connecting end. The connecting end is rotatably connected to the push rod. Under the action of the push rod, the roller shaft 7 rotates axially, thereby driving the roller 6 and the rolling element 8 to roll.

[0038] In one specific embodiment, the roller 6 has a hollow portion, forming an inner circumference and an outer circumference; the axis of the roller shaft 7 is aligned with the center of the roller 6 and passes through the hollow portions of both rollers 6; the roller shaft 7 is connected to the inner circumference of the roller 6 by multiple support rods; the outer circumferences of the two rollers 6 are connected by a rolling element 8.

[0039] Furthermore, in this embodiment, one of the rollers 6 has an opening and defines a mounting groove with the other roller 6; since the two rollers 6 are arranged opposite each other and have a set distance, preferably, the set distance is adapted to the thickness of the marking box 3, one of the rollers 6 has an opening, and the other roller 6 serves as the bottom plate of the mounting groove, so that the two rollers 6 define a mounting groove that can accommodate and fix the marking box 3.

[0040] In the above embodiments, the opening can be located on the opposite side of the push rod or on the same side of the push rod. By rotating the push rod, the relative position of the push rod and the opening can be adjusted to avoid the opening when installing or removing the marking box 3.

[0041] Furthermore, in this embodiment, the push rod includes a connecting rod 5 and a bearing. The bearing includes a bushing and a spindle. One end of the connecting rod 5 is connected to the bushing, and the other end is provided with a handle 4. The spindle is connected to the roller shaft 7. By setting the bearing, the push rod and the roller shaft 7 are rotatably connected. Moreover, the roller 6, the roller shaft 7, and the push rod are all common materials on the construction site, which are easy to process and manufacture, and can effectively reduce the overall cost of the device.

[0042] Furthermore, the rebar spacing marking device proposed in this application also includes a positioning disc 1, which is detachably connected to a roller 6 away from the push rod. The center of the positioning disc 1 is aligned with the center of the roller 6, and its outer edge protrudes from the roller 6 to form a limiting part. Since the rolling surface is located on the outer edge of the roller 6, the limiting part and the rolling surface form an angle. This angle can achieve limiting cooperation with some special marking objects, assisting the roller 6 to move along a specific path to form markings arranged in a straight line.

[0043] It should be noted that the rolling surface in this application has a certain width, and the surface on which the mark needs to be formed is defined as the calibration surface. When the calibration surface is planar and its width is not much different from that of the rolling surface, the contact area between the rolling surface and the calibration surface is large, and the roller assembly can move smoothly along the calibration surface without easily skewing or shifting. However, when the calibration surface is not planar, or when the calibration position is at the edge of the component, the contact area between the rolling surface and the calibration surface is small, and skewing or shifting is likely to occur when the roller assembly rolls, resulting in deviations in the spacing between the marks and affecting the accuracy of the marking. For example, when the calibration object is a steel bar (including vertical steel bar, beam reinforcement, and floor slab reinforcement), the calibration surface is a circumferential surface, and the rolling surface is tangent to the circumferential surface. When the roller assembly rolls along the circumferential surface, it is very easy to shift along its circumferential direction. Or, when the marking position is close to a narrow plane (such as at the corner of the template), the roller assembly is prone to skewing to one side, which will also cause the mark to shift. In this application, by setting a limiting part, the limiting part contacts the set part of the calibrated object, which can cooperate with the rolling surface to limit the position of the rolling surface from different directions, thereby forming a limiting on the overall device and ensuring that the roller assembly moves along the set path.

[0044] Specifically, when the object being marked is a reinforcing bar, the reinforcing bar can be clamped at the angle between the rolling surface and the limiting part. This ensures contact between the rolling surface and the reinforcing bar, and also limits and constrains the reinforcing bar through the limiting part. This effectively prevents the rolling surface from rotating and shifting, and the markings can be arranged along the axial direction of the reinforcing bar.

[0045] Specifically, when the calibrated object is the edge of the template, the rolling surface is placed on the template, and the limiting part is pressed against the side end face of the template. This can effectively limit the movement path of the rolling surface, prevent the roller assembly from tilting, and ensure the accuracy of the marking.

[0046] The diameter of the positioning disk 1 is larger than that of the roller disk 6. Preferably, the positioning disk 1 has a hollow area in the middle that is the same as that of the roller disk 6 to avoid the roller shaft 7. In a specific technical solution, the positioning disk 1 and the roller disk 6 are provided with corresponding threaded holes. The positions of the threaded holes are staggered from the positions of the mounting grooves and are evenly distributed around the center of the positioning disk 1, so that the positioning disk 1 and the roller disk 6 can be stably connected by anchor bolts 2. Alternatively, the positioning disk 1 and the roller disk 6 are provided with corresponding locking holes, so that the two can be quickly installed and removed by anchor bolts.

[0047] In one specific embodiment, the positioning disk 1 is selectively installed on the roller 6 depending on the object being calibrated. When the calibration surface of the object being calibrated is wide, the positioning disk 1 is not installed, and the marking of the rebar spacing is achieved only through the roller 6 assembly and the marking assembly. When the object being calibrated is a rebar or other component with a narrow calibration surface, the positioning disk 1 is installed on the roller 6, and the positioning disk 1 is used to limit the calibration object to ensure the accuracy of the marking position.

[0048] Furthermore, in this embodiment, the limiting part includes a guide slope, which is disposed close to the rolling surface and forms an obtuse angle with the rolling surface; this arrangement allows for the accommodation of steel bars of various specifications between the guide slope and the rolling surface, thereby improving the applicability of the device.

[0049] Preferably, in this embodiment, the included angle is 102° to 108° and the width of the rolling surface is 28mm to 32mm, which can meet the requirements of rebar spacing marking under most working conditions on the construction site.

[0050] Furthermore, in this embodiment, the push rod is a telescopic rod, and its length can be adjusted as needed to improve the convenience of worker operation.

[0051] In one specific embodiment, the push rod includes at least two sleeves, each sleeve having multiple connecting holes. The connecting holes of adjacent sleeves can be selectively connected. By adjusting the anchor bolt 2 to pass through the connecting holes, the sleeves of adjacent sleeves can be connected to adjust the length of the push rod.

[0052] In one specific embodiment, the roller 6 is made of 1.5mm thick stainless steel, with an inner diameter of 100mm, an outer diameter of 190mm, and an outer circumference of 600mm; the rolling element 8 is made of 30mm wide stainless steel, with marking holes 81 spaced 100mm apart in the middle of its width direction; one of the rollers 6 has six openings for mounting grooves on its surface, evenly distributed around the central axis of the roller 6; the marking box 3 is made of welded stainless steel sheet, with an ink outlet, filled with ink-absorbing sponge, and injected with ink; the positioning plate 1 is made of 1.5mm thick stainless steel, with an inner diameter of 100mm, an outer diameter of 250mm, and an angle of 105 degrees between the guide slope and the rolling surface; when the rebar spacing is 100mm, six marking boxes 3 are installed in six mounting grooves; when the rebar spacing is 200mm, three marking boxes 3 are installed in three mounting grooves, spaced one mounting groove apart.

[0053] The method of using the above-mentioned rebar spacing marking device includes the following steps:

[0054] S1. Selectively install the marking box 3 into the mounting groove according to the spacing of the reinforcing bars;

[0055] In this embodiment, the spacing between the reinforcing bars is 200mm, and the three marking boxes 3 are installed in the three mounting slots with one mounting slot between them.

[0056] S2. Inject ink into the marking box 3 and adjust the height of the ink-absorbing sponge protruding from the marking hole 81;

[0057] When filling with ink, do not overfill; use only a suitable amount. The exposed height of the ink-absorbing sponge should be sufficient to meet the marking requirements.

[0058] S3. Select whether to install positioning disk 1 based on the calibration object;

[0059] Positioning disc 1 is installed on vertical reinforcing bars, beam reinforcing bars, floor deck reinforcing bars, and corners of formwork; positioning disc 1 is not installed on large-area formwork and ground surfaces.

[0060] S4. Push the roller assembly to roll and mark the lines.

[0061] Taking vertical reinforcing bars as an example, when marking lines, the positioning disc 1 is made to be in close contact with the reinforcing bar to ensure that the rolling surface rolls at a uniform speed to complete the marking on the vertical reinforcing bar; when marking lines on the ground, the rolling disc assembly is directly pushed to roll at a uniform speed to complete the marking.

[0062] The advantages and positive effects of this invention are:

[0063] (1) This application utilizes the combination of the roller assembly and the marking box to accurately control the spacing between the formed marks according to the marking requirements of different rebar spacing; by using the push rod to push the roller assembly to roll, marks arranged in a straight line can be quickly formed on the marking object, reducing the difficulty of operation, ensuring the accuracy of rebar marking, and significantly improving the efficiency of rebar spacing marking.

[0064] (2) By setting up a detachable marking box, the marking spacing can be adjusted quickly and easily according to the marking requirements of different rebar spacing. It also makes the installation and assembly of the marking box more convenient and quick, which is conducive to the installation, dismantling and maintenance of the marking box.

[0065] (3) By setting a positioning plate, it is possible to choose whether to install the positioning plate according to the characteristics of the calibrated object, so as to achieve rolling anti-deviation; ensuring that the device can be applied to various construction scenarios and achieving good versatility;

[0066] (4) It is easy to use and control, and can be operated by a single person; it has a simple structure, reliable connection, and is easy to manufacture.

[0067] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A rebar spacing marking device, characterized in that: It includes a roller assembly, a push rod, and a marking box; the roller assembly has a rolling surface with a plurality of marking holes; the marking box is detachably connected to the roller assembly and has an ink outlet communicating with the marking holes; one end of the push rod is rotatably connected to the rotation center of the roller assembly.

2. The rebar spacing marking device according to claim 1, characterized in that: The roller assembly is provided with a mounting groove, the opening of which faces one side of the rolling surface in the width direction; the marking box can be selectively embedded in the mounting groove and filled with an ink-absorbing sponge; the mounting groove is connected to the marking port.

3. The rebar spacing marking device according to claim 2, characterized in that: The roller assembly further includes rollers, roller shafts, and rolling elements, with the rollers arranged opposite to each other; the roller shaft is connected to the center of the two rollers, and one end of the roller shaft is provided with a connecting end, which protrudes outward from the roller and is rotatably connected to the push rod; the rolling element is connected to the edge of the two rollers to define the rolling surface.

4. The rebar spacing marking device according to claim 3, characterized in that: One of the rollers has the opening and defines the mounting groove with the other roller.

5. The rebar spacing marking device according to claim 3, characterized in that: The push rod includes a connecting rod and a bearing, the bearing including a bushing and a spindle; one end of the connecting rod is connected to the bushing, and the other end is provided with a handle; the spindle is connected to the roller shaft.

6. The rebar spacing marking device according to claim 3 or 5, characterized in that: It also includes a positioning disk, which is detachably connected to the roller disk away from the push rod; the center of the positioning disk is aligned with the center of the roller disk, and its outer edge protrudes from the roller disk to form a limiting portion.

7. The rebar spacing marking device according to claim 6, characterized in that: The limiting part includes a guide slope, which is disposed close to the rolling surface and forms an obtuse angle with the rolling surface.

8. The rebar spacing marking device according to claim 7, characterized in that: The included angle is 102° to 108°, and the width of the rolling surface is 28mm to 32mm.

9. The rebar spacing marking device according to claim 1, characterized in that: The push rod is a telescopic rod.

10. A construction method for the rebar spacing marking device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Selectively install the marking boxes in the mounting groove according to the spacing of the reinforcing bars; S2. Inject ink into the marking box and adjust the height of the ink-absorbing sponge protruding from the marking hole; S3. Select whether to install a positioning plate based on the calibration object; S4. Push the roller assembly to roll and mark the lines.

Images