I-shaped steel line drawing tool

Abstract

The utility model belongs to the technical field of I-shaped steel line drawing, and discloses an I-shaped steel line drawing tool which comprises a base support, and positioning assemblies are installed at the two ends of the upper portion of the base support. Two first guide limiting rows are arranged between the two positioning assemblies and located on the two sides of the I-shaped steel correspondingly, each first guide limiting row comprises a plurality of first one-way bearings rotationally connected to the base support, and the first one-way bearings of the two first guide limiting rows are matched to clamp the I-shaped steel; each first one-way bearing can rotate under the friction force of the I-shaped steel when the I-shaped steel slides from one end of the base bracket to the other end of the base bracket; a sliding rod located on one side of the I-shaped steel is connected between the two positioning assemblies, the sliding rod is sleeved with a sleeve connected with a formwork, and the formwork is placed on the I-shaped steel. According to the line drawing tool, drilling is convenient after line drawing is finished, and construction efficiency is improved.

Description

A type of I-beam marking fixture Technical Field

[0001] This utility model belongs to the technical field of I-beam marking, specifically relating to an I-beam marking fixture. Background Technology

[0002] I-beams are used in locking commutators and gearbox positioning. Fixed holes need to be machined on the I-beams. During machining, a template is used. The template can slide on the I-beam and has positioning holes, which makes it easy to machine holes of specific sizes according to the dimensions of the positioning holes.

[0003] Utility model patent CN215037408U discloses an I-beam marking fixture, including a base plate. A support rod is fixedly connected to the upper surface of the base plate. A first plate and a second plate are fixedly connected to the upper surface of the support rod. A top rod is fixedly connected to one side of the first plate. A through hole is opened on one side of the second plate. A top rod is slidably connected to the surface of the through hole. A moving block is slidably connected to the surface of the top rod. A connecting rod is fixedly connected to the lower surface of the moving block. A template is fixedly connected to the lower surface of the connecting rod. A marking hole is opened on the upper surface of the template. A threaded post is fixedly connected to one side of the top rod. Nuts are threadedly connected to the surface of the threaded post. The number of nuts is four.

[0004] While the aforementioned existing technology facilitates marking lines on I-beams, the actual purpose of marking lines on I-beams is to drill holes in them. However, the existing method of marking lines on I-beams obscures the marked lines, making it extremely inconvenient to drill holes without removing the I-beams first. Summary of the Invention

[0005] The purpose of this utility model is to provide a tooling for marking lines on I-beams, which solves the problem in the prior art where the lines on I-beams are obscured after marking, making drilling inconvenient.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A marking fixture for I-beams includes a base support with positioning components installed at both ends of the upper part of the base support. These components position the I-beam, which is positioned with its opening facing downwards, on the base support. Two first guide limit rows are positioned between the two positioning components, located on opposite sides of the I-beam. Each first guide limit row includes multiple first one-way bearings rotatably connected to the base support. The first one-way bearings of the two first guide limit rows cooperate to clamp the I-beam, and each first one-way bearing can rotate under the frictional force of the I-beam as it slides from one end of the base support to the other. A sliding rod located on one side of the I-beam connects the two positioning components. A sleeve connected to a template is fitted over the sliding rod, and the template is placed on the I-beam.

[0008] As a preferred technical solution of this utility model, two sleeves are provided, both sleeves are connected to one side of the template through a connecting plate, and the two sleeves are spaced apart; a sliding groove extending along its length is provided on the sliding rod, and a slider is slidably connected in the sliding groove; a torsion spring is provided between the two sleeves and sleeved outside the sliding rod, and the two ends of the torsion spring are respectively connected to the I-beam and the slider.

[0009] As a preferred technical solution of this utility model, two rows of limiting shafts are fixed on the base bracket. Each limiting shaft includes an integrally formed lower round rod and an upper screw. The inner ring of each first one-way bearing is sleeved on the lower round rod. A limiting nut is threadedly connected to the upper screw, and the limiting nut abuts against the inner ring of the first one-way bearing.

[0010] As a preferred technical solution of this utility model, two first one-way bearings are sleeved on each lower round rod, and a first partition ring sleeved on the lower end of the inner ring of each of the two first one-way bearings is provided.

[0011] As a preferred technical solution of this utility model, the upper part of the base bracket is also provided with two second guide limit rows arranged along its length direction. Both second guide limit rows are located inside the I-beam. Each second guide limit row includes multiple second one-way bearings rotatably connected to the base bracket. Each second one-way bearing abuts against the inner wall of the I-beam, and each second one-way bearing can rotate under the friction of the I-beam when the I-beam slides from one end of the base bracket to the other end.

[0012] As a preferred technical solution of this utility model, the base bracket is equipped with two rows of mounting bolts. Each mounting bolt includes a nut part, a round rod part and a screw part with gradually decreasing diameter connected from top to bottom. The screw part is threadedly connected to the base bracket. The inner ring of the second one-way bearing is sleeved on the outside of the round rod part, and the nut part presses against the inner ring of the second one-way bearing.

[0013] As a preferred technical solution of this utility model, two second one-way bearings are sleeved on each round rod portion, and a second partition ring sleeved on the lower end of the inner ring of each of the two second one-way bearings is provided.

[0014] As a preferred technical solution of this utility model, the positioning component includes an inverted U-shaped positioning frame and a positioning bolt threaded to the middle of the inverted U-shaped positioning frame. The inverted U-shaped positioning frame is covered outside the I-beam, and both ends of the inverted U-shaped positioning frame are fixedly connected to the base bracket. The lower end of the positioning bolt passes through the middle of the inverted U-shaped positioning frame and abuts against the I-beam.

[0015] As a preferred technical solution of this utility model, the other end of the base bracket is provided with a limiting strip for abutting against one end of the I-beam. One end of the limiting strip is rotatably connected to a positioning seat, and the other end of the limiting strip abuts against one end of the I-beam that passes through the two positioning components. The positioning seat is fixed on the base bracket.

[0016] As a preferred technical solution of this utility model, the other end of the base bracket is also fixed with a reinforcing member, the upper end of the reinforcing member is provided with a U-shaped groove, and the middle part of the limiting strip is provided in the U-shaped groove.

[0017] Beneficial effects: Before drawing lines, the I-beam is slid from one end of the base support between the two first guide limit rows. Then, the template is rotated so that the I-beam can slide between the two positioning components. After sliding to a certain position, the I-beam is positioned by the two positioning components to ensure its stability. Then, the template is rotated to the top of the I-beam for drawing lines. After drawing lines, the template can be rotated again or moved to avoid the drawing line position. This way, there are no obstructions at the drawing line position, which facilitates drilling and improves construction efficiency. Attached Figure Description

[0018] Figure 1 is a front view of this utility model;

[0019] Figure 2 is a side view of this utility model.

[0020] In the diagram: 1-Base bracket; 2-Positioning component; 201-Inverted U-shaped positioning frame; 202-Positioning bolt; 3-I-beam; 4-First one-way bearing; 5-Slide rod; 6-Sleeve; 7-Template; 8-Slider; 9-Limiting shaft; 10-Limiting nut; 11-Second one-way bearing; 12-Mounting bolt; 13-Limiting strip; 14-Positioning seat; 15-Reinforcing component. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0022] Example:

[0023] As shown in Figures 1 and 2, this embodiment provides an I-beam marking fixture, including a base bracket 1. Positioning components 2 are installed at both ends of the upper part of the base bracket 1 to position the I-beam 3, which is positioned with its opening facing downwards, on the base bracket 1. It should be noted that when the I-beam 3 is installed on the base bracket 1 in this invention, its opening faces downwards, so that the middle part of the I-beam 3 is located at its upper end, thus leaving construction space for drilling. Two first guide limit rows are provided between the two positioning components 2, located on both sides of the I-beam 3. Each first guide limit row includes multiple first one-way bearings 4 rotatably connected to the base bracket 1. The first one-way bearings 4 of the two first guide limit rows cooperate to clamp the I-beam 3, ensuring the stability of the I-beam 3 when installed on the base bracket 1. To prevent wobbling, the positioning components 2 are used to ensure the stability of the I-beam 3 during line drawing and drilling. Each first one-way bearing 4 can rotate under the friction of the I-beam 3 as it slides from one end of the base support 1 to the other, thus allowing the I-beam 3 to move only from one end of the base support 1 to the other and preventing it from retracting. This facilitates line drawing based on the position of the I-beam 3, such as quickly determining the line drawing position when one end of the I-beam 3 is aligned with the other end of the base support 1. A sliding rod 5 located on one side of the I-beam 3 is connected between the two positioning components 2 to ensure the stability of the sliding rod 5. At the same time, the sliding rod will not affect drilling. A sleeve 6 connected to the template 7 is sleeved on the sliding rod 5. The sleeve 6 can slide and rotate on the sliding rod 5, thereby realizing the sliding and rotation of the template 7. The template 7 is placed on the I-beam 3, which facilitates line drawing.

[0024] Before drawing lines, the I-beam 3 is slid from one end of the base bracket 1 between the two first guide limit rows. Then, the template 7 is rotated so that the I-beam 3 can slide between the two positioning components 2. After sliding to a certain position, the two positioning components 2 position the I-beam 3 to ensure its stability. Then, the template 7 is rotated to the top of the I-beam 3 to draw lines. After drawing lines, the template 7 can be rotated again or its position moved so that the template 7 avoids the drawing line position. In this way, there are no obstructions at the drawing line position, which facilitates drilling and improves construction efficiency.

[0025] As a preferred embodiment of this invention, it should be further explained that two sleeves 6 are provided, each sleeve 6 is connected to one side of the template 7 through a connecting plate, and the two sleeves 6 are spaced apart to ensure that the template 7 can rotate and move relative to the sliding rod 5; the sliding rod 5 has a groove extending along its length, and a slider 8 is slidably connected in the groove; a torsion spring is provided between the two sleeves 6 and sleeved outside the sliding rod 5, and the two ends of the torsion spring are respectively connected to the I-beam 3 and the slider 8, so that the template 7 and the sleeves 6 cannot slide, and the slider 8 can also move when the template 7 moves. When the template 7 rotates relative to the sliding rod 3, the torsion spring will give the template 7 a spring force, so that the template 7 can be more stably supported on the I-beam 3 in its natural state.

[0026] As a preferred embodiment of this invention, it should be further explained that two rows of limiting shafts 9 are fixed on the base bracket 1. Each limiting shaft 9 includes an integrally formed lower round rod and an upper screw. The inner ring of each first one-way bearing 4 is sleeved on a lower round rod. A limiting nut 10 is threadedly connected to the upper screw. The limiting nut 10 abuts against the inner ring of the first one-way bearing 4 to ensure the stability of the first one-way bearing 4, while not affecting the unidirectional rotation of the outer ring of the first one-way bearing 4.

[0027] As a preferred embodiment of this example, it should be further explained that two first one-way bearings 4 are sleeved on each lower round rod. The lower end of the inner ring of each of the two first one-way bearings 4 is provided with a first partition ring that is sleeved on the lower round rod, so that the two first one-way bearings 4 can flexibly contact the I-beam 3, increasing the contact area and further enhancing the stability of the I-beam 3.

[0028] As a preferred embodiment of this invention, it should be further explained that the upper part of the base support 1 is also provided with two second guide limit rows arranged along its length direction. Both second guide limit rows are located inside the I-beam 3. Each second guide limit row includes multiple second one-way bearings 11 rotatably connected to the base support 1. Each second one-way bearing 11 abuts against the inner wall of the I-beam 3, and each second one-way bearing 11 can rotate under the friction of the I-beam 3 when the I-beam 3 slides from one end of the base support 1 to the other end. The second one-way bearings 11 cooperate with the first one-way bearings 4 to further enhance the stability of the I-beam 3.

[0029] As a preferred embodiment of this invention, it should be further explained that the base bracket 1 is equipped with two rows of mounting bolts 12. Each mounting bolt 12 includes a nut portion, a round rod portion, and a screw portion that are connected from top to bottom with gradually decreasing diameters. The screw portion is threadedly connected to the base bracket 1. The inner ring of the second one-way bearing 11 is sleeved on the outside of the round rod portion. The nut portion presses against the inner ring of the second one-way bearing 11 to ensure the stability of the second one-way bearing 11, while not affecting the one-way rotation of the outer ring of the second one-way bearing 11.

[0030] As a preferred embodiment of this invention, it should be further explained that two second one-way bearings 11 are sleeved on each round rod portion. The lower end of the inner ring of each of the two second one-way bearings 11 is provided with a second partition ring sleeved on the outside of the round rod portion, which increases the contact area and can further enhance the stability of the I-beam 3.

[0031] As a preferred embodiment of this invention, it should be further explained that the positioning component 2 includes an inverted U-shaped positioning frame 201 and a positioning bolt 202 threadedly connected to the middle of the inverted U-shaped positioning frame 201. The inverted U-shaped positioning frame 201 covers the H-beam 3, and both ends of the inverted U-shaped positioning frame 201 are fixedly connected to the base bracket 1. The lower end of the positioning bolt 202 passes through the middle of the inverted U-shaped positioning frame 201 and abuts against the H-beam 3. Positioning can be achieved by simply rotating the positioning bolt 202, making the operation simple and convenient. Preferably, the positioning bolt 202 is provided with at least a handle, allowing for direct hand operation and further simplifying the process.

[0032] As a preferred embodiment of this example, it should be further explained that the other end of the base bracket 1 is provided with a limiting strip 13 for abutting against one end of the I-beam 3. One end of the limiting strip 13 is rotatably connected to a positioning seat 14, and the other end of the limiting strip 13 abuts against one end of the I-beam 3 that passes through the two positioning components 2. The positioning seat 14 is fixed on the base bracket 1. In practice, the limiting strip 13 can limit one end of the I-beam 3, and then the limiting position is used as the zero point of the I-beam 3. Scale lines are marked on the slide rod 5, which facilitates quick and accurate drawing of lines at the designated position of the I-beam 3.

[0033] As a preferred embodiment of this example, it should be further noted that the other end of the base bracket 1 is also fixed with a reinforcing member 15. The upper end of the reinforcing member 15 is provided with a U-shaped groove, and the middle part of the limiting strip 13 is disposed in the U-shaped groove, which can further enhance the stability of the limiting strip 13.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tooling for marking lines on I-beams, characterized in that, The system includes a base support (1), with positioning components (2) installed at both ends of the upper part of the base support (1) to position the I-beam (3) with its opening facing downward on the base support (1) through the two positioning components (2); two first guide limit rows are provided between the two positioning components (2), and the two first guide limit rows are located on both sides of the I-beam (3), each first guide limit row includes multiple first one-way bearings (4) rotatably connected to the base support (1), the first one-way bearings (4) of the two first guide limit rows cooperate to clamp the I-beam (3), and each first one-way bearing (4) can rotate under the friction of the I-beam (3) when the I-beam (3) slides from one end of the base support (1) to the other end; a slide rod (5) located on one side of the I-beam (3) is connected between the two positioning components (2), and a sleeve (6) connected to the template (7) is sleeved on the slide rod (5), and the template (7) is placed on the I-beam (3).

2. The I-beam scribing tooling fixture of claim 1, wherein, Two sleeves (6) are provided, and both sleeves (6) are connected to one side of the template (7) through a connecting plate, and the two sleeves (6) are spaced apart; a sliding groove extending along its length is provided on the sliding rod (5), and a slider (8) is slidably connected in the sliding groove; a torsion spring is provided between the two sleeves (6) and sleeved outside the sliding rod (5), and the two ends of the torsion spring are respectively connected to the I-beam (3) and the slider (8).

3. The I-beam marking fixture according to claim 1, characterized in that, Two rows of limiting shafts (9) are fixed on the base bracket (1). Each limiting shaft (9) includes an integrally formed lower round rod and an upper screw. The inner ring of each first one-way bearing (4) is sleeved on a lower round rod. A limiting nut (10) is threaded on the upper screw. The limiting nut (10) abuts against the inner ring of the first one-way bearing (4).

4. The I-beam marking fixture according to claim 3, characterized in that, Two first one-way bearings (4) are fitted onto each lower round rod, and the lower end of the inner ring of each of the two first one-way bearings (4) is provided with a first partition ring fitted onto the lower round rod.

5. The I-beam scribing tooling apparatus of any one of claims 1-4, wherein, The upper part of the base bracket (1) is also provided with two second guide limit rows arranged along its length direction. Both second guide limit rows are located inside the I-beam (3). Each second guide limit row includes multiple second one-way bearings (11) rotatably connected to the base bracket (1). Each second one-way bearing (11) abuts against the inner wall of the I-beam (3). Each second one-way bearing (11) can rotate under the friction of the I-beam (3) when the I-beam (3) slides from one end of the base bracket (1) to the other end.

6. The I-beam scribing tooling fixture of claim 5, wherein, The base bracket (1) is equipped with two rows of mounting bolts (12). Each mounting bolt (12) includes a nut part, a round rod part and a screw part that are connected from top to bottom in a gradually decreasing diameter manner. The screw part is threadedly connected to the base bracket (1). The inner ring of the second one-way bearing (11) is sleeved on the outside of the round rod part. The nut part presses against the inner ring of the second one-way bearing (11).

7. The I-beam marking fixture according to claim 6, characterized in that, Two second one-way bearings (11) are fitted onto each round rod section, and a second partition ring fitted onto the outside of the round rod section is provided at the lower end of the inner ring of each of the two second one-way bearings (11).

8. A tooling for marking lines on I-beams according to any one of claims 1-4, characterized in that, The positioning component (2) includes an inverted U-shaped positioning frame (201) and a positioning bolt (202) threadedly connected to the middle of the inverted U-shaped positioning frame (201). The inverted U-shaped positioning frame (201) is covered outside the I-beam (3), and both ends of the inverted U-shaped positioning frame (201) are fixedly connected to the base bracket (1). The lower end of the positioning bolt (202) passes through the middle of the inverted U-shaped positioning frame (201) and abuts against the I-beam (3).

9. A tooling for marking lines on I-beams according to any one of claims 1-4, characterized in that, The other end of the base bracket (1) is provided with a limiting strip (13) for abutting against one end of the I-beam (3). One end of the limiting strip (13) is rotatably connected to a positioning seat (14). The other end of the limiting strip (13) abuts against one end of the I-beam (3) that passes through the two positioning components (2). The positioning seat (14) is fixed on the base bracket (1).

10. A marking fixture for I-beams according to claim 9, characterized in that, The other end of the base bracket (1) is also fixed with a reinforcing member (15), the upper end of which is provided with a U-shaped groove, and the middle part of the limiting strip (13) is provided in the U-shaped groove.

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