Beam bottom formwork laser plumbing positioning system

Abstract

The utility model discloses a beam bottom formwork laser plumbing positioning system which comprises a formwork support, a laser plumbing instrument and a laser receiving ruler, the laser receiving ruler and a beam bottom formwork are installed in a combined mode and integrally arranged on the formwork support, and the laser plumbing instrument is arranged at a preset position below the formwork support. A laser source capable of vertically emitting an upper laser beam and a lower laser beam is arranged in the laser plumbing instrument, and the laser receiving ruler can receive the plumbing point of the upper laser beam and determine the positioning of the beam bottom template. The laser plumbing positioning system for the beam bottom formwork is compact in structure, capable of conveniently determining the position of the laser plumbing instrument and receiving laser plumbing points so as to achieve positioning of the beam bottom formwork, large in laser brightness, fast in automatic leveling, free of influence of wind blowing, convenient to observe, accurate in recognition, high in beam bottom formwork positioning accuracy and positioning efficiency and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of building measurement and positioning technology, and in particular to a laser projection positioning system for beam bottom formwork. Background Technology

[0002] In structural engineering construction, for reinforced concrete beams, the bottom formwork of the concrete beam must first be positioned and installed, then the side formwork of the concrete beam is installed and fixed, and then the reinforcement and concrete construction is carried out.

[0003] Currently, the positioning and installation of concrete beam bottom formwork is mainly accomplished using traditional plumb bobs. However, traditional plumb bobs are easily affected by wind, which can affect their positioning accuracy, and the oscillating motion of the plumb bob results in low positioning efficiency.

[0004] Therefore, it is essential to develop a laser projection positioning system for beam bottom formwork that features high laser brightness, ease of observation, immunity to wind, and high positioning efficiency to replace the traditional plumb bob positioning system for beam bottom formwork. Utility Model Content

[0005] Based on the technical problems existing in the background technology, this utility model proposes a laser projection positioning system for beam bottom template.

[0006] This utility model proposes a laser projection positioning system for beam bottom formwork, including a formwork support, a laser projection device, and a laser receiving ruler. The laser receiving ruler is assembled with the beam bottom formwork and placed as a whole on the formwork support. The laser projection device is set at a predetermined position below the formwork support, and the laser projection device is equipped with a laser light source capable of vertically emitting an upper laser beam and a lower laser beam. The laser receiving ruler can receive the projection of the upper laser beam and determine the positioning of the beam bottom formwork.

[0007] Preferably, the method is used for positioning and installing the bottom formwork of the beam before the concrete beam and column are poured. The projection of the concrete beam and column on the ground includes the beam projection line and the column projection line. The lower laser beam is projected at a predetermined position on the beam projection line to determine the predetermined position of the laser projection device.

[0008] Preferably, the laser receiving ruler includes a semi-transparent ruler body, an end positioning protrusion, a right-angle positioning protrusion, and a side positioning protrusion. The end positioning protrusion is located at one end of the lower end face of the ruler body. A positioning groove is provided at the center line of the upper end face of the ruler body and is perpendicular to the end positioning protrusion. The right-angle positioning protrusion is located at the center line of the lower end face of the ruler body and is close to one end of the end positioning protrusion. The side positioning protrusion is located at the center line of the lower end face of the ruler body and is located away from the other end of the end positioning protrusion. Distance scale lines and distance markings are provided on the upper end face of the ruler body on both sides of the positioning groove.

[0009] Preferably, the zero mark of the distance scale is located at the connection between the positioning groove and the end positioning protrusion.

[0010] Preferably, the ruler body, end positioning protrusion, right-angle positioning protrusion, and side positioning protrusion are integrally formed.

[0011] Preferably, the inner end face of the end positioning protrusion is perpendicular to the upper end face of the scale body; the right-angle positioning protrusion and the side positioning protrusion are cuboid structures and are perpendicular to the upper end face of the scale body.

[0012] Preferably, the positioning groove is a slender space composed of two parallel positioning lines.

[0013] Preferably, the right-angle positioning protrusion is tightly attached to the inner end face of the end positioning protrusion, or a gap is provided between the right-angle positioning protrusion and the end positioning protrusion.

[0014] Preferably, there are two end positioning protrusions, with the other end positioning protrusion symmetrically arranged at one end of the upper surface of the scale body; there are two right-angle positioning protrusions, with the other right-angle positioning protrusion symmetrically arranged in the positioning groove on the upper surface of the scale body near the end of the end positioning protrusion; there are two side positioning protrusions, with the other side positioning protrusion symmetrically arranged in the positioning groove on the upper surface of the scale body at the other end away from the end positioning protrusion.

[0015] Preferably, the width of the right-angle positioning protrusion and the side positioning protrusion is equal to the distance between the two parallel positioning lines of the positioning groove.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model discloses a laser-based positioning system for beam bottom formwork. The system uses a lower laser beam emitted by a laser projector positioned below the formwork support to adjust and determine the installation position of the laser projector. The upper laser beam emitted by the laser projector projects points onto a laser receiving ruler, thus adjusting and determining the position of the laser receiving ruler and the beam bottom formwork on the formwork support. This system features a compact structure, facilitates the positioning of the laser projector and the reception of laser points for beam bottom formwork positioning. It boasts high laser brightness, rapid automatic leveling, is unaffected by wind, is easy to observe, provides accurate identification, and offers high positioning accuracy and efficiency for the beam bottom formwork. It is also easy to operate. Attached Figure Description

[0018] Figure 1 : A schematic diagram of the structure of the laser projection positioning system for beam bottom formwork of this utility model;

[0019] Figure 2: A schematic diagram of the positioning and installation of the laser dot projector of this utility model;

[0020] Figure 3 : A schematic diagram of the structure of the laser receiving ruler of this utility model;

[0021] Figure 4 Top view of the structure of the laser receiving ruler of this utility model;

[0022] Figure 5 Left view of the structure of the laser receiving ruler of this utility model;

[0023] Figure 6 Schematic diagram of the installation structure of the laser receiving ruler and the bottom template of the beam according to this utility model. Figure 1 (Top view angle);

[0024] Figure 7 Schematic diagram of the installation structure of the laser receiving ruler and the bottom template of the beam according to this utility model. Figure 2 (Looking up from below) Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1:

[0027] Reference Figure 1-7 The present invention proposes a laser projection positioning system for beam bottom formwork, which is used for positioning and installation of beam bottom formwork 4 before concrete beam and column pouring. It includes formwork support 3, laser projection instrument 5, and laser receiving ruler 6.

[0028] The laser spotter 5 is installed below the template support 3, and the laser spotter 5 is equipped with a laser source capable of vertically emitting an upper laser beam 7 and a lower laser beam 8. The projection of the concrete beam and column on the ground, including the beam projection line 1 and the column projection line 2, can be determined by moving and adjusting the installation position of the laser spotter 5 so that the positioning mark 9 of the lower laser beam 8 on the ground is located at a predetermined position on the beam projection line 1, thereby realizing the determination of the predetermined installation position of the laser spotter 5.

[0029] The laser receiving ruler 6 is assembled with the bottom beam template 4 and placed on the template support 3. The laser receiving ruler 6 receives the projection point of the upper laser beam 7, that is, the projection point of the upper laser beam 7 on the laser receiving ruler 6 is displayed. Then, by adjusting the position of the laser receiving ruler 6 and the bottom beam template 4 on the template support 3, the positioning of the laser receiving ruler 6, i.e. the bottom beam template 4, can be determined.

[0030] By using the laser point projector 5 and the laser receiving ruler 6 to position the bottom formwork 4 of the beam multiple times, or by using multiple laser point projectors 5 and laser receiving rulers 6 to position the bottom formwork 4 of the beam once, the positioning and installation of all bottom formwork 4 of the concrete beam and column can be achieved.

[0031] Example 2:

[0032] Reference Figure 1-7 The present invention proposes a laser projection positioning system for beam bottom formwork, which is used for positioning and installation of beam bottom formwork 4 before concrete beam and column pouring. It includes formwork support 3, laser projection instrument 5, and laser receiving ruler 6.

[0033] The laser spotter 5 is installed below the template support 3, and the laser spotter 5 is equipped with a laser source capable of vertically emitting an upper laser beam 7 and a lower laser beam 8. The projection of the concrete beam and column on the ground, including the beam projection line 1 and the column projection line 2, can be determined by moving and adjusting the installation position of the laser spotter 5 so that the positioning mark 9 of the lower laser beam 8 on the ground is located at a predetermined position on the beam projection line 1, thereby realizing the determination of the predetermined installation position of the laser spotter 5.

[0034] like Figure 3-7 As shown, the laser receiving ruler 6 includes a ruler body 61, an end positioning protrusion 62, a right-angle positioning protrusion 63, and a side positioning protrusion 64. The ruler body 61 is made of a semi-transparent PC board, and the ruler body 61, end positioning protrusion 62, right-angle positioning protrusion 63, and side positioning protrusion 64 are integrally formed. The laser point emitted by the laser source shines directly onto the ruler body 61 from below, and the semi-transparent ruler body 61 allows for easy observation of the specific receiving position of the laser point from above, facilitating the adjustment of the position of the ruler body 61 and the beam bottom formwork 4.

[0035] An end positioning protrusion 62 is provided at one end of the lower end face of the scale body 61, and the inner end face of the end positioning protrusion 62 is perpendicular to the upper end face of the scale body 61. A positioning groove 651 is provided at the center line of the upper end face of the scale body 61. The positioning groove 651 is a slender space composed of two parallel positioning lines and is perpendicular to the end positioning protrusion 62.

[0036] The right-angle positioning protrusion 3 is located at the centerline of the lower end face of the scale body 1 and close to one end of the end positioning protrusion 2; the side positioning protrusion 4 is located at the centerline of the lower end face of the scale body 1 and away from the other end of the end positioning protrusion 2. The right-angle positioning protrusion 3 and the side positioning protrusion 4 are cuboid structures and are perpendicular to the upper end face of the scale body 1.

[0037] The ruler body 61 on both sides of the positioning groove 651 is provided with distance scale lines 652 and distance marks 653 on its upper surface. The zero mark of the distance scale line 652 is located at the connection between one end of the ruler body 61 and the end positioning protrusion 62. During the laser point reception process, the specific deviation of the laser point can be clearly observed through the distance scale line 652 and the distance mark 653, and the position of the ruler body 61 and the bottom beam template 4 can be adjusted accordingly. The right-angle positioning protrusion 63 is tightly attached to the inner end face of the end positioning protrusion 62 and forms a right angle with the end positioning protrusion 62, which facilitates engagement and positioning with the bottom beam template 4 at a right angle.

[0038] like Figure 6 , Figure 7 As shown, during the assembly and installation of the laser receiving ruler 6 and the beam bottom template 4, firstly, the lower end face of the ruler body 61 is tightly attached to the upper end face of the beam bottom template 4, and the right angle of the beam bottom template 4 is tightly attached to the intersection of the end positioning protrusion 62 and the positioning groove 651 on the lower end face of the ruler body 61. Furthermore, the right angle side 41 of the beam bottom template 4 is tightly attached to the inner end face of the end positioning protrusion 62 on the lower end face of the ruler body 61, and the other right angle side 42 of the beam bottom template 4 is tightly attached to the side end face of the right angle positioning protrusion 63 and the side positioning protrusion 64, thereby completing the assembly and installation of the laser receiving ruler 6 and the beam bottom template 4. The end positioning protrusion 62, right-angle positioning protrusion 63, and side positioning protrusion 64 provided on the ruler body 61 facilitate installation with the beam bottom formwork 4. At the same time, the positioning groove 651, distance scale line 652, and distance mark 653 provided on the ruler body 61 facilitate the reception and position recognition adjustment of the laser point, thereby improving the positioning accuracy of the beam bottom formwork 4.

[0039] The laser receiving ruler 6 is assembled and installed with the beam bottom formwork 4, and placed as a whole on the formwork support 3. The laser receiving ruler 6 receives the projection point of the upper laser beam 7, displaying the projection point of the upper laser beam 7 on the laser receiving ruler 6. The positioning of the laser receiving ruler 6 and the beam bottom formwork 4 on the formwork support 3 is then determined by adjusting their positions. Multiple laser projectors 5 and laser receiving rulers 6 are provided, installed at different positions on the beam projection line 1 and column projection line 2 below the formwork support 3. The multiple laser receiving rulers 6 and beam bottom formwork 4 correspond to the positions of the multiple laser projectors 5. Through multiple positioning operations of the laser projectors 5 and laser receiving rulers 6 with the beam bottom formwork 4, or through a single positioning operation of multiple laser projectors 5 and laser receiving rulers 6 with the beam bottom formwork 4, the positioning and installation of all beam bottom formwork 4 for concrete beams and columns can be achieved.

[0040] The specific steps of the laser projection positioning system for beam bottom formwork of this utility model are as follows: First, place the laser projection device 5 on the ground below the formwork support 3. By moving and adjusting the installation position of the laser projection device 5, the positioning mark 9 of the lower laser beam 8 on the ground is positioned at a predetermined position on the beam projection line 1, thereby determining the predetermined installation position of the laser projection device 5. Second, pre-adjust the overall position of the laser receiving ruler 6 and the beam bottom formwork 4 installation assembly, so that the upper laser beam 7 emitted by the laser projection device 5 vertically illuminates the lower end face of the ruler body 61 from below. Then, observe the specific projection position of the upper laser beam 7 on the ruler body 61 from above. Using the distance scale line 652 and distance mark 653 set on the ruler body 61, fine-tune the position of the ruler body 61 and the beam bottom formwork 4, thereby determining the position of a certain point of the beam bottom formwork 4. Finally, by using the laser point projector 5 and the laser receiving ruler 6 to position the bottom formwork 4 of the beam multiple times, or by using multiple laser point projectors 5 and laser receiving rulers 6 to position the bottom formwork 4 of the beam once, the positioning and installation of all the bottom formwork 4 of the concrete beam and column can be achieved.

[0041] Example 3:

[0042] Reference Figure 1-7 The laser projection positioning system for beam bottom formwork proposed in this utility model has a structure that is basically the same as that in Embodiment 2, except that:

[0043] The right-angle positioning protrusion 63 is not tightly attached to the inner end face of the end positioning protrusion 62, but rather there is a certain distance gap between them. This is because the zero mark of the distance scale line 652 is located at the connection point between one end of the scale body 61 and the end positioning protrusion 62. If the right-angle positioning protrusion 63 were tightly attached to the end positioning protrusion 62, it would partially obstruct the zero mark and the positioning groove 651. Since the zero mark is generally used frequently, the distance gap between the right-angle positioning protrusion 63 and the end positioning protrusion 62 avoids obstructing the zero mark. At the same time, it does not affect the limiting function of the right-angle positioning protrusion 63 on the other right-angled side 42 of the beam bottom formwork 4.

[0044] Example 4:

[0045] Reference Figure 1-7 The laser projection positioning system for beam bottom formwork proposed in this utility model has a structure that is basically the same as that in Embodiment 2, except that:

[0046] Two of each of the end positioning protrusion 62, right-angle positioning protrusion 63, and side positioning protrusion 64 are provided and arranged symmetrically to each other. In addition to one end positioning protrusion 62, right-angle positioning protrusion 63, and side positioning protrusion 64 located at their respective positions on the lower end face of the scale body 61, another end positioning protrusion 62 is symmetrically arranged at one end of the upper end face of the scale body 61, another right-angle positioning protrusion 63 is symmetrically arranged in the positioning groove 651 on the upper end face of the scale body 61 near the end of the end positioning protrusion 62, and another side positioning protrusion 64 is symmetrically arranged in the positioning groove 651 on the upper end face of the scale body 61 at the other end away from the end positioning protrusion 62.

[0047] During the positioning and installation of the beam bottom formwork 4, the upper end face of the beam bottom formwork 4 can be tightly attached to the lower end face of the ruler body 61, and the lower end face of the beam bottom formwork 4 can also be tightly attached to the upper end face of the ruler body 61 for assembly and positioning.

[0048] As can be seen from Examples 1, 2, 3, and 4, the laser projection positioning system for beam bottom formwork of this utility model has a compact structure, facilitates the location determination of the laser projection instrument 5 and the reception of laser projections to achieve the positioning of the beam bottom formwork 4, has high laser brightness, fast automatic leveling, is not affected by wind, is easy to observe, has accurate identification, and has high positioning accuracy and efficiency for the beam bottom formwork 4, and is easy to operate.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser dot positioning system for beam bottom formwork, characterized in that, The system includes a template support (3), a laser projector (5), and a laser receiver (6). The laser receiver (6) is assembled with the bottom template (4) of the beam and placed on the template support (3). The laser projector (5) is set at a predetermined position below the template support (3). The laser projector (5) is equipped with a laser source that can vertically emit an upper laser beam (7) and a lower laser beam (8). The laser receiver (6) can receive the projection of the upper laser beam (7) and determine the positioning of the bottom template (4) of the beam.

2. A laser dot positioning system for beam bottom formwork according to claim 1, wherein, The beam bottom formwork (4) is used for positioning and installation before the concrete beam and column are poured. The projection of the concrete beam and column on the ground includes the beam projection line (1) and the column projection line (2). The lower laser beam (8) is projected at a predetermined position on the beam projection line (1) to determine the predetermined position of the laser projection instrument (5).

3. A laser dot positioning system for beam bottom formwork according to claim 1, wherein, The laser receiving ruler (6) includes a semi-transparent ruler body (61), an end positioning protrusion (62), a right-angle positioning protrusion (63), and a side positioning protrusion (64). The end positioning protrusion (62) is located at one end of the lower end face of the ruler body (61). A positioning groove (651) is provided at the center line of the upper end face of the ruler body (61) and is perpendicular to the end positioning protrusion (62). The right-angle positioning protrusion (63) is located at the center line of the lower end face of the ruler body (61) and is close to one end of the end positioning protrusion (62). The side positioning protrusion (64) is located at the center line of the lower end face of the ruler body (61) and is away from the other end of the end positioning protrusion (62). Distance scale lines (652) and distance marks (653) are provided on the upper end face of the ruler body (61) on both sides of the positioning groove (651).

4. A laser dot positioning system for beam bottom formwork according to claim 3, wherein, The zero mark of the distance scale line (652) is located at the connection between the positioning groove (651) and the end positioning protrusion (62).

5. A laser dot positioning system for beam bottom formwork according to claim 3, wherein, The ruler body (61), end positioning protrusion (62), right angle positioning protrusion (63), and side positioning protrusion (64) are integrally formed structures.

6. A laser dot positioning system for beam bottom formwork according to claim 3, wherein, The inner end face of the end positioning protrusion (62) is perpendicular to the upper end face of the ruler body (61); the right-angle positioning protrusion (63) and the side positioning protrusion (64) are cuboid structures and are perpendicular to the upper end face of the ruler body (61).

7. A laser dot positioning system for beam bottom formwork according to claim 3, wherein, The positioning groove (651) is a slender space composed of two parallel positioning lines.

8. The laser spot projection system for positioning of a beam bottom form according to claim 3, wherein, The right-angle positioning protrusion (63) is closely attached to the inner end face of the end positioning protrusion (62), or a gap is provided between the right-angle positioning protrusion (63) and the end positioning protrusion (62).

9. The laser spot projection system for positioning of a beam bottom form according to claim 3, wherein, Two end positioning protrusions (62) are provided, and another end positioning protrusion (62) is symmetrically provided at one end of the upper surface of the scale body (61); two right-angle positioning protrusions (63) are provided, and another right-angle positioning protrusion (63) is symmetrically provided in the positioning groove (651) on the upper surface of the scale body (61) near the end of the end positioning protrusion (62); two side positioning protrusions (64) are provided, and another side positioning protrusion (64) is symmetrically provided in the positioning groove (651) on the upper surface of the scale body (61) at the other end away from the end positioning protrusion (62).

10. The laser dot positioning system for beam bottom formwork according to claim 3, wherein, The width of the right-angle positioning protrusion (63) and the side positioning protrusion (64) is equal to the distance between the two parallel positioning lines of the same positioning groove (651).

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