Rectangular air duct diagonal straightener

By designing a diagonal corrector for rectangular air ducts, the problem of diagonal lines of rectangular air ducts is solved by using the cooperation of sheath, sleeve rod, positioning ring and other components, and a fast and accurate correction effect is achieved to adapt to air ducts of different sizes.

CN223228574UActive Publication Date: 2025-08-15HOUPAN IND (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202422163068.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-08-15
Estimated Expiration
2034-09-04

AI Technical Summary

Technical Problem

The diagonal inequality of existing rectangular air ducts is common, and the lack of special correction tools leads to a long time-consuming and low accuracy.

Method used

A rectangular air duct diagonal corrector is designed, including a sheath, a sleeve rod, a positioning ring, a first hook, a screw and a second hook. Through the cooperation of these components, the bite of the air duct can be adjusted to ensure equal diagonal lines, and can be manually adjusted and welded and fixed during use.

Benefits of technology

The diagonal of the rectangular air duct is quickly and accurately adjusted, ensuring that the air duct is tightly closed, adapting to air duct bodies of different sizes, and improving correction efficiency and accuracy.

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Abstract

The utility model relates to a rectangular air duct diagonal corrector which comprises an air duct body, an inlet is formed in the front side of the air duct body, a correcting mechanism is arranged on the front side of the inlet, the correcting mechanism comprises a protective sleeve, a sleeve rod, a positioning ring, a first hook, a screw rod and a second hook, the protective sleeve is arranged in the inlet, and the sleeve rod is arranged in the protective sleeve. A sleeve rod is installed in the protective sleeve, a positioning ring is installed on the left side of the sleeve rod, a hook is arranged on the left side of the positioning ring, and a threaded rod is arranged on the right side of the sleeve rod. According to the diagonal corrector for the rectangular air duct, firstly, the screw rod is pulled outwards and stopped after reaching a proper position, the screw rod is locked through the fixing screw, then the diagonal corrector can be matched with air duct bodies of different sizes, then a user holds the protective sleeve with one hand, connects the first hook with the threaded hole and holds the positioning ring with the other hand, and the user can conveniently and quickly use the diagonal corrector. The second hook is close to the diagonal line of the inlet, the distance between the diagonal lines in the threaded hole is hooked at the moment, and welding is directly carried out after fastening.
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Description

Technical Field

[0001] The utility model relates to the technical field of air ducts, in particular to a diagonal corrector for a rectangular air duct. Background Art

[0002] The air duct is a piping system used for air transportation and distribution. There are two types of air ducts: composite air ducts and inorganic air ducts. The production of stainless steel air ducts is to apply sealant (such as neutral glass glue) on the gaps such as the bite seams, rivet seams, and the four corners of the flange. According to the cross-sectional shape, the air duct can be divided into circular air ducts, rectangular air ducts, oblate air ducts and many other types.

[0003] The existing unequal diagonals of rectangular air ducts are a common quality defect in the production of rectangular air ducts. Inaccurate cutting and squaring, unequal lengths and widths of the two opposite sides of the air duct, unequal widths of the joint angle bites or corner bites at the four corners of the air duct, and uneven force on the bites will all cause the diagonals of the rectangular air duct to be unequal. Currently, there is a lack of special tools for correcting the air ducts. Usually, the lengths of the two diagonals are measured with a ruler and then corrected manually. This is not only time-consuming and inaccurate, but also very inconvenient to use. Therefore, a rectangular air duct diagonal corrector is proposed to solve the above problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a rectangular air duct diagonal corrector, which has the advantage of facilitating the correction of the air duct diagonals. It solves the problem that there is currently a lack of special tools for correcting the air duct. Usually, the length of the two diagonals is measured with a ruler and then corrected manually, which is not only time-consuming but also has low precision and is very inconvenient to use.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a rectangular air duct diagonal corrector comprises an air duct body, an inlet is opened on the front side of the air duct body, and a correction mechanism is provided on the front side of the inlet;

[0006] The correction mechanism includes a sheath, a sleeve rod, a positioning ring, a first hook, a screw rod and a second hook. The interior of the inlet is provided with a sheath, the interior of the sleeve rod is installed with a sleeve rod, the left side of the sleeve rod is installed with a positioning ring, the left side of the positioning ring is provided with a hook, the right side of the sleeve rod is provided with a screw rod, and the right side of the screw rod is installed with a second hook.

[0007] Furthermore, four side panels are installed on the front side of the air duct body, and the four side panels are respectively located around the inlet.

[0008] Furthermore, a threaded hole is provided inside each of the side plates, the sleeve rod is a large M24 turnbuckle nut, and a receiving groove is provided inside the sleeve rod.

[0009] Furthermore, the left side of the screw rod extends to the interior of the accommodating groove, the top and bottom of the screw rod are both installed with limit blocks, and the interior of the sleeve rod is provided with two limit grooves.

[0010] Furthermore, one side of the two limiting blocks away from the screw rod respectively extends to the inside of the two limiting grooves, and a positioning hole is opened on the front side of the screw rod.

[0011] Furthermore, the number of the positioning holes is not less than five, and a fixing screw is installed on the front side of the screw rod, and the fixing screw passes through the screw rod and is threadedly connected to the sleeve rod.

[0012] Furthermore, the sheath is sleeved on the outside of the sleeve rod and the screw rod, and the first hook and the second hook are respectively aligned with the two ends of the diagonal line of the inlet.

[0013] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0014] 1. The rectangular duct diagonal corrector is used for gas transportation by arranging the duct body and setting a correction mechanism. The various mechanisms of the correction mechanism cooperate with each other to adjust the bite of the duct body to ensure that the diagonals are equal and the duct body is closed more tightly.

[0015] 2. The rectangular duct diagonal corrector fixes the sleeve rod through the sleeve. When in use, the user holds the sleeve with one hand and connects the first hook to the threaded hole. The other hand holds the positioning ring to bring the second hook close to the diagonal of the inlet. At this time, the threaded hole is hooked to tighten the diagonal spacing. After tightening, it can be directly welded. By setting the positioning hole, the spacing of the screws can be easily adjusted. The screws are pulled outward and stopped when they reach the appropriate position. The screws are locked by fixing the screws to adapt to duct bodies of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is a partial three-dimensional schematic diagram of the utility model;

[0018] Figure 3 It is a partial front view schematic diagram of the utility model;

[0019] Figure 4 It is a partial cross-sectional schematic diagram of the utility model.

[0020] In the figure: 1 duct body, 2 inlet, 3 correction mechanism, 301 sheath, 302 sleeve rod, 303 positioning ring, 304 first hook, 305 screw, 306 second hook, 4 side plate, 5 threaded hole, 6 positioning hole, 7 fixing screw. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The rectangular air duct diagonal corrector comprises an air duct body 1, an inlet 2 is opened on the front side of the air duct body 1, and a correction mechanism 3 is provided on the front side of the inlet 2;

[0023] The correction mechanism 3 includes a sheath 301, a sleeve rod 302, a positioning ring 303, a first hook 304, a screw 305 and a second hook 306. The sleeve 301 is provided inside the inlet 2, the sleeve rod 302 is installed inside the sleeve 301, the positioning ring 303 is installed on the left side of the sleeve rod 302, the hook 304 is installed on the left side of the positioning ring 303, the screw 305 is provided on the right side of the sleeve rod 302, and the second hook 306 is installed on the right side of the screw 305.

[0024] exist Figure 1 and Figure 2 In the figure, four side panels 4 are installed on the front side of the air duct body 1. The four side panels 4 are respectively located around the inlet 2, and the threaded holes 5 are used to facilitate positioning and correction of the air duct body 1.

[0025] exist Figure 1 and Figure 2 In the figure, a threaded hole 5 is provided inside each side plate 4. The various mechanisms of the correction mechanism 3 cooperate with each other to adjust the bite of the air duct body 1 to ensure that the diagonals are equal, so that the air duct body 1 is closed more tightly. The correction mechanism 3 includes a sheath 301, a sleeve rod 302, a positioning ring 303, a first hook 304, a screw 305 and a second hook 306. The sleeve rod 302 is a large basket nut of M24, and an accommodating groove is provided inside the sleeve rod 302.

[0026] exist Figure 1 and Figure 3 In the embodiment, the left side of the screw rod 305 extends to the inside of the accommodating groove, the top and bottom of the screw rod 305 are both installed with limit blocks, and the interior of the sleeve rod 302 is provided with two limit grooves.

[0027] exist Figure 2 and Figure 3In the embodiment, the two limit blocks extend to the inside of the two limit grooves on one side away from the screw 305. A positioning hole 6 is provided on the front side of the screw 305, and the sleeve 302 is fixed by the sleeve 301. When in use, the user holds the sleeve with one hand and connects the first hook 304 to the threaded hole 5. The other hand holds the positioning ring 303 to make the second hook 306 close to the diagonal of the inlet 2. At this time, the diagonal spacing is tightened by hooking the threaded hole 5. After tightening, it can be directly welded.

[0028] exist Figure 2 and Figure 3 In the embodiment, the number of positioning holes 6 is not less than five, and a fixing screw 7 is installed on the front side of the screw rod 305. The fixing screw 7 passes through the screw rod 305 and is threadedly connected to the sleeve rod 302. By setting the positioning holes 6, the spacing of the screw rod 305 can be easily adjusted. The screw rod 305 is pulled outward and stopped when it reaches the appropriate position. The screw 305 is locked by the fixing screw 7 to adapt to air duct bodies 1 of different sizes.

[0029] exist Figure 3 and Figure 4 In the embodiment, the sheath 301 is sleeved on the outside of the sleeve rod 302 and the screw rod 305, and the first hook 304 and the second hook 306 are aligned with the two ends of the diagonal of the inlet 2 respectively.

[0030] To sum up, the rectangular duct diagonal corrector fixes the sleeve rod 302 through the sleeve 301. When in use, the user holds the sleeve with one hand and connects the first hook 304 to the threaded hole 5. The other hand holds the positioning ring 303 to make the second hook 306 close to the diagonal of the inlet 2. At this time, the threaded hole 5 is hooked to tighten the diagonal spacing. After tightening, it can be directly welded. By setting the positioning hole 6, the spacing of the screw rod 305 can be easily adjusted. The screw rod 305 is pulled outward and stopped when it reaches the appropriate position. The screw rod 305 is locked by the fixing screw 7 to adapt to air duct bodies 1 of different sizes.

[0031] In addition, when in use, first pull the screw 305 outward and stop when it reaches the appropriate position, and lock the screw 305 by fixing the screw 7 to adapt to the air duct body 1 of different sizes. Then the user holds the sheath with one hand and connects the first hook 304 to the threaded hole 5, and holds the positioning ring 303 with the other hand to make the second hook 306 close to the diagonal of the inlet 2. At this time, hook the threaded hole 5 to tighten the diagonal spacing, and when it is tightened, it can be directly welded.

[0032] The specific model specifications of each device in this article need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rectangular air duct diagonal corrector, comprising an air duct body (1), characterized in that: An inlet (2) is provided on the front side of the air duct body (1), and a correction mechanism (3) is provided on the front side of the inlet (2); The correction mechanism (3) comprises a protective sleeve (301), a sleeve rod (302), a positioning ring (303), a first hook (304), a screw rod (305) and a second hook (306); the interior of the inlet (2) is provided with a protective sleeve (301); the interior of the protective sleeve (301) is provided with a sleeve rod (302); the left side of the sleeve rod (302) is provided with a positioning ring (303); the left side of the positioning ring (303) is provided with a hook (304); the right side of the sleeve rod (302) is provided with a screw rod (305); and the right side of the screw rod (305) is provided with a second hook (306).

2. The rectangular air duct diagonal corrector according to claim 1, characterized in that: Four side panels (4) are installed on the front side of the air duct body (1), and the four side panels (4) are respectively located around the inlet (2).

3. The rectangular air duct diagonal corrector according to claim 2, characterized in that: A threaded hole (5) is provided inside each side plate (4), the sleeve rod (302) is a large M24 basket nut, and a receiving groove is provided inside the sleeve rod (302).

4. The rectangular air duct diagonal corrector according to claim 3, characterized in that: The left side of the screw rod (305) extends to the inside of the accommodating groove. The top and bottom of the screw rod (305) are both installed with limiting blocks. Two limiting grooves are opened inside the sleeve rod (302).

5. The rectangular air duct diagonal corrector according to claim 4, characterized in that: The two limiting blocks extend to the inside of the two limiting grooves at a side away from the screw rod (305), and a positioning hole (6) is provided on the front side of the screw rod (305).

6. The rectangular air duct diagonal corrector according to claim 5, characterized in that: The number of the positioning holes (6) is not less than five, and a fixing screw (7) is installed on the front side of the screw rod (305). The fixing screw (7) passes through the screw rod (305) and is threadedly connected to the sleeve rod (302).

7. The rectangular air duct diagonal corrector according to claim 1, characterized in that: The sheath (301) is sleeved on the outside of the sleeve rod (302) and the screw rod (305), and the first hook (304) and the second hook (306) are respectively aligned with the two ends of the diagonal line of the inlet (2).