Air pipe common plate flange tapping auxiliary device

Abstract

The utility model provides an air pipe common plate flange tapping auxiliary device which comprises first connecting pieces, second connecting pieces installed at the left end and the right end of each first connecting piece respectively, first connecting pieces installed at the front ends and the rear ends of the second connecting pieces respectively, and second connecting pieces installed at the front ends and the rear ends of the second connecting pieces respectively. The first connecting piece and the second connecting piece jointly form the rectangular air pipe common plate flange tapping auxiliary device, and a plurality of through holes are formed in the first connecting piece and the second connecting piece. According to the air pipe common plate flange tapping auxiliary device, through the arrangement of the first through hole, the second through hole, the first marking groove, the second marking groove, the first limiting plate, the second limiting plate and other structures, the effects that the positions of threaded holes with different requirements can be designated, and the positions of the first through hole, the second through hole and the limiting device can be rapidly distinguished can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation pipe opening, and more specifically to an auxiliary device for opening a hole in a common plate flange of a ventilation pipe. Background Art

[0002] In modern installation projects, with the advancement of science and technology, new materials and new processes emerge in an endless stream during the production and installation of air-conditioning ducts. Common plate flange ducts are one of them. Flange connection methods include common plate flanges and angle steel flanges. Common plates are suitable for medium and low pressure systems. Smoke exhaust systems require bolts according to specifications. According to the requirements of the Housing and Urban-Rural Development Bureau, smoke exhaust systems must not use common plate flanges, but should use common plate flanges plus bolts or angle steel. In terms of cost, angle steel flanges are more expensive. The use of common plate flanges plus bolts meets the specifications and acceptance requirements and has lower costs. At present, there are fewer common plate flanges plus bolts on the market. The screw hole requirements are 150mm for bolt spacing in medium and low pressure systems and 100mm for high pressure systems according to the specifications. The common practice is to measure, arrange bolt holes, mark and drill holes directly on the common plate flange. This method first has a large measurement error, and secondly, it is easy to cause the two butted flange edges to have deviations and misalignments. Finally, each duct needs to be measured and marked, and the process is complicated and prone to errors.

[0003] The utility model can play the role of specifying the positions of screw holes with different requirements and quickly distinguishing the positions of the first through hole, the second through hole and the limiting device. Utility Model Content

[0004] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a duct common plate flange opening auxiliary device to achieve the effect of specifying the positions of screw holes for different requirements and quickly distinguishing the first through hole from the second through hole and the position of the limiting device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a duct common plate flange hole opening auxiliary device, comprising: a first connecting member, a second connecting member is installed at each of the left and right ends of the first connecting member, a first connecting member is installed at each of the front and rear ends of the second connecting member, the first connecting member and the second connecting member together form a rectangular duct common plate flange hole opening auxiliary device, and a plurality of through holes are opened on the first connecting member and the second connecting member.

[0006] A further preferred solution: the first connecting member and the second connecting member are both composed of two parts, the horizontal part of the first connecting member and the second connecting member is the horizontal part, the vertical part of the first connecting member and the second connecting member is the vertical part, and the material of the first connecting member and the second connecting member is angle steel.

[0007] A further preferred solution: positioning through holes are provided at both ends of the horizontal part of the second connecting member, and first through holes are evenly distributed on the top surfaces of the horizontal parts of the first connecting member and the second connecting member, and the spacing between the first through holes is 100 mm, and the center of the positioning through hole and the first through hole are located on the same straight line.

[0008] A further preferred solution: a plurality of equally spaced second through holes are provided on the top surfaces of the horizontal parts of the first connecting member and the second connecting member, the spacing between the second through holes is 150 mm, and the centers of the positioning through holes and the second through holes are located on the same straight line.

[0009] A further preferred solution is that a first marking groove is formed on a side of the first through hole away from the vertical portion, and a second marking groove is formed on a side of the second through hole close to the vertical portion.

[0010] A further preferred solution is that the horizontal portion of the first connecting member has second openings at both ends, the vertical portion of the second connecting member has first openings at both ends, the first openings fit with the second openings, and the first connecting member and the second connecting member are welded through the first openings and the second openings.

[0011] A further preferred solution is that a first limiting plate and a second limiting plate are installed inside the connection between the first connecting member and the second connecting member, the first limiting plate is the same size as the first opening, and the second limiting plate is the same size as the second opening.

[0012] Beneficial effects:

[0013] 1. By providing the first through hole and the second through hole, the effect of being able to specify the position of the screw holes for different requirements is achieved. According to the specification, the bolt spacing of the screw holes is 150mm for low-pressure systems and 100mm for high-pressure systems. The spacing between the first through holes is 100mm, which can specify the position of the screw holes for the air duct in the high-pressure system. The spacing between the second through holes is 150mm, which can specify the position of the screw holes for the air duct in the low-pressure system.

[0014] 2. By providing the first marking groove and the second marking groove, the effect of quickly distinguishing the first through hole from the second through hole can be achieved. When it is necessary to open a screw hole for the air duct, the air duct common plate flange opening auxiliary device is placed at an appropriate position above the air duct, and a punching device is used to directly drill a hole through the first through hole or the second through hole. The screw hole for the air duct in the high-pressure system is drilled according to the first marking groove, and the screw hole for the air duct in the low-pressure system is drilled according to the second marking groove. The first marking groove and the second marking groove make it possible to clearly specify the position to be opened when drilling, and the screw hole to be drilled will not be confused;

[0015] 3. By providing the first limiting plate and the second limiting plate, the effect of limiting the position of the device is achieved, and the air duct common plate flange opening auxiliary device is clamped on the inner wall of the air duct, thereby limiting the position of the device, and preventing the device from moving outward due to external force, resulting in inaccurate opening position. In addition, the first limiting plate and the second limiting plate are parts cut from the first connecting member and the second connecting member when the first opening and the second opening are opened, which can fully utilize the materials and avoid material waste;

[0016] 4. In summary, this type of duct common plate flange hole opening auxiliary device, by providing a first through hole, a second through hole, a first marking groove, a second marking groove, a first limiting plate and a second limiting plate and other structures, can play a role in specifying the positions of screw holes for different needs and quickly distinguishing the first through hole from the second through hole and the position of the limiting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the overall explosion three-dimensional structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the first connecting member of the utility model.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the second connecting member of the utility model.

[0021] Figure 1-4 In: 1. first connecting member; 201. positioning through hole; 202. first through hole; 203. second through hole; 3. second connecting member; 4. first limiting plate; 5. second limiting plate; 6. first marking groove; 7. second marking groove; 8. first opening; 9. second opening; 10. horizontal portion; 11. vertical portion. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the utility model Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0023] See also Figure 1-4 In the embodiment of the utility model, a duct common plate flange opening auxiliary device includes: a first connecting member 1, a second connecting member 3 is installed at each of the left and right ends of the first connecting member 1, and a first connecting member 1 is installed at each of the front and rear ends of the second connecting member 3. The first connecting member 1 and the second connecting member 3 together form a rectangular duct common plate flange opening auxiliary device. The first connecting member 1 and the second connecting member 3 are connected to achieve the effect of providing support for other devices, and can maintain the stability of the structure and ensure the accuracy of punching;

[0024] A plurality of through holes are provided on the first connecting member 1 and the second connecting member 3, and these through holes are used as marks and guides, and can be directly aligned with the positions where holes need to be opened on the common plate flange of the duct. The user can use a drill or other hole-opening tools through these pre-set through holes to ensure the accuracy and consistency of the holes, avoid errors caused by manual measurement, and improve work efficiency and the standardization level of duct processing.

[0025] In the embodiment of the utility model, the first connecting member 1 and the second connecting member 3 are composed of two parts. The horizontal part of the first connecting member 1 and the second connecting member 3 is the horizontal part 10, and the vertical part of the first connecting member 1 and the second connecting member 3 is the vertical part 11. The material of the first connecting member 1 and the second connecting member 3 is angle steel, which is a very common material in air duct processing and manufacturing factories and can be quickly obtained in the factory, making it convenient to obtain the material.

[0026] In the embodiment of the utility model, positioning through holes 201 are opened at the left and right ends of the horizontal portion 10 of the second connecting member 3, and the top surfaces of the horizontal portions 10 of the first connecting member 1 and the second connecting member 3 are opened with equidistantly distributed first through holes 202, and the spacing between the first through holes 202 is 100 mm. The centers of the positioning through holes 201 and the first through holes 202 are located on the same straight line, thereby achieving the effect of specifying the position of the screw holes of the air duct when the high-pressure system is used.

[0027] In the embodiment of the utility model, a plurality of equally spaced second through holes 203 are provided on the top surfaces of the horizontal portions 10 of the first connecting member 1 and the second connecting member 3, and the spacing between the second through holes 203 is 150 mm. The centers of the positioning through holes 201 and the second through holes 203 are located on the same straight line, thereby achieving the effect of specifying the position of the screw holes for the air duct in a low-pressure system.

[0028] In the embodiment of the utility model, a first marking groove 6 is provided on a side of the first through hole 202 away from the vertical portion 11, and a second marking groove 7 is provided on a side of the second through hole 203 close to the vertical portion 11, so as to achieve the effect of being able to quickly distinguish the first through hole 202 from the second through hole 203. When it is necessary to open a screw hole for the air duct, the air duct common plate flange opening auxiliary device is placed at an appropriate position above the air duct, and a punching device is used to directly drill holes through the first through hole 202 or the second through hole 203. The screw holes for the air duct in the high-pressure system are drilled according to the first marking groove 6, and the screw holes for the air duct in the low-pressure system are drilled according to the second marking groove 7. The first marking groove 6 and the second marking groove 7 make it possible to clearly specify the position to be opened when drilling, and the screw holes to be drilled will not be confused.

[0029] In the embodiment of the utility model, second openings 9 are opened at the left and right ends of the horizontal portion 10 of the first connecting member 1, and first openings 8 are opened at the left and right ends of the vertical portion 11 of the second connecting member 3. The first opening 8 is matched with the second opening 9. The first connecting member 1 and the second connecting member 3 are welded through the first opening 8 and the second opening 9 to achieve the effect of fixedly connecting the first connecting member 1 and the second connecting member 3. In addition, this connection method enables the first connecting member 1 and the second connecting member 3 to withstand external forces in all directions, thereby ensuring the stability and rigidity of the auxiliary device, making it not easy to deform during the hole opening operation, and ensuring the accuracy of the hole opening position.

[0030] In the embodiment of the utility model, a first limiting plate 4 and a second limiting plate 5 are installed on the inner side of the connection between the first connecting member 1 and the second connecting member 3. The first limiting plate 4 is the same size as the first opening 8, and the second limiting plate 5 is the same size as the second opening 9. The first limiting plate 4 and the second limiting plate 5 can achieve the effect of clamping the air duct common plate flange hole opening auxiliary device on the inner wall of the air duct, thereby limiting the position of the device and preventing the device from moving outward due to external force and causing inaccurate hole position. In addition, the first limiting plate 4 and the second limiting plate 5 are the parts cut off from the first connecting member 1 and the second connecting member 3 when opening the first opening 8 and the second opening 9, which can make full use of the material and avoid material waste.

[0031] Working principle: when it is necessary to drill a hole for the air duct, first take out the angle steel, which is a very common material in air duct processing and manufacturing factories. It can be quickly obtained in the factory and is convenient to obtain. Then, according to the actual size of the air duct on site, cut the angle steel into four suitable sections, then open the first opening 8 and the second opening 9, and weld the angle steel through the first opening 8 and the second opening 9. This connection method enables the first connecting member 1 and the second connecting member 3 to withstand external forces in all directions, thereby ensuring the stability and rigidity of the auxiliary device, making it less likely to deform during the drilling operation, and ensuring the accuracy of the drilling position; then weld the first limiting plate 4 and the second limiting plate 5. The limiting plates can limit the position of the device to prevent the device from being moved outward by external forces and causing inaccurate drilling positions. In addition, the first limiting plate 4 and the second limiting plate 5 are cut from the first connecting member 1 and the second connecting member 3 when the first opening 8 and the second opening 9 are opened. The parts can make full use of materials without causing material waste; then, according to the needs, the positioning holes, the first through hole 202 and the second through hole 203 are opened at the four corners with an opener, and then the first marking groove 6 and the second marking groove 7 are cut out at the corresponding positions with a cutting machine. When it is necessary to open the screw hole of the air duct, the air duct common plate flange opening auxiliary device is first clamped on the inner wall of the air duct, and then the punching device is used to directly drill through the first through hole 202 or the second through hole 203. The screw hole of the air duct in the high-pressure system is drilled according to the first marking groove 6, and the screw hole of the air duct in the low-pressure system is drilled according to the second marking groove 7. The first marking groove 6 and the second marking groove 7 make it clear and clear to specify the position to be opened when drilling, and the screw hole to be drilled will not be confused. The use and production steps of this device are simple, it can be quickly produced on site, and the drilling is accurate, the docking is convenient, and the error is small. After the device is completed, drilling can be carried out directly, which is quick and convenient.

Claims

1. An auxiliary device for opening a hole in a common plate flange of an air duct, comprising: The first connecting member (1) is characterized in that: a second connecting member (3) is installed at each of the left and right ends of the first connecting member (1), and a first connecting member (1) is installed at each of the front and rear ends of the second connecting member (3); the first connecting member (1) and the second connecting member (3) together form a rectangular air duct common plate flange opening auxiliary device, and a plurality of through holes are opened on the first connecting member (1) and the second connecting member (3).

2. The air duct common plate flange opening auxiliary device according to claim 1, characterized in that: The first connecting member (1) and the second connecting member (3) are both composed of two parts, the horizontal part of the first connecting member (1) and the second connecting member (3) is the horizontal part (10), and the vertical part of the first connecting member (1) and the second connecting member (3) is the vertical part (11), and the material of the first connecting member (1) and the second connecting member (3) is angle steel.

3. The auxiliary device for opening a hole in a common plate flange of an air duct according to claim 2, characterized in that: Positioning through holes (201) are provided at both left and right ends of the horizontal portion (10) of the second connecting member (3); first through holes (202) are provided at equal intervals on the top surfaces of the horizontal portions (10) of the first connecting member (1) and the second connecting member (3); the spacing between the first through holes (202) is 100 mm; and the centers of the positioning through holes (201) and the first through holes (202) are located on the same straight line.

4. The air duct common plate flange opening auxiliary device according to claim 3, characterized in that: A plurality of equally spaced second through holes (203) are provided on the top surfaces of the horizontal parts (10) of the first connecting member (1) and the second connecting member (3), the spacing between the second through holes (203) is 150 mm, and the centers of the positioning through holes (201) and the second through holes (203) are located on the same straight line.

5. The auxiliary device for opening a hole in a common plate flange of an air duct according to claim 4, characterized in that: A first marking groove (6) is provided on a side of the first through hole (202) away from the vertical portion (11), and a second marking groove (7) is provided on a side of the second through hole (203) close to the vertical portion (11).

6. The air duct common plate flange opening auxiliary device according to claim 2, characterized in that: The horizontal portion (10) of the first connecting member (1) is provided with second openings (9) at both left and right ends, and the vertical portion (11) of the second connecting member (3) is provided with first openings (8) at both left and right ends. The first opening (8) fits with the second opening (9), and the first connecting member (1) and the second connecting member (3) are welded via the first opening (8) and the second opening (9).

7. The air duct common plate flange opening auxiliary device according to claim 6, characterized in that: A first limiting plate (4) and a second limiting plate (5) are installed on the inner side of the connection between the first connecting member (1) and the second connecting member (3); the first limiting plate (4) and the first opening (8) are of the same size, and the second limiting plate (5) and the second opening (9) are of the same size.

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