A conveniently installed ventilation duct

Abstract

The utility model relates to a kind of ventilation ducts of convenient installation, it is characterized in that, including multiple mutually spliced pipe body, the end of pipe body is equipped with same plate flange, detachable guide rod is equipped between the both sides same plate flange of pipe body, the outside of pipe body is equipped with support hanger, the both sides of support hanger are equipped with ceiling lead screw, horizontal extension guide groove is equipped on support hanger, guide groove is opposite with guide rod, guide rod can be coupled with guide groove, to guide pipe body when hoisting pipe body, it is convenient to find level and alignment of pipe body.The utility model has the following advantages and effects: it can be hoisted to find level and alignment of ventilation duct quickly, to improve the convenience when installing.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct technology, specifically to a ventilation duct that is easy to install. Background Technology

[0002] Ventilation ducts are pipes used for air circulation, generally made of galvanized and stainless steel sheets. They are mainly used for ventilation in industrial and civil buildings, or for transporting air in air conditioning projects. Ventilation ducts are generally composed of multiple pipe bodies connected by welding or flanges, and the assembled ventilation ducts are then suspended using ceiling screws and supports.

[0003] For example, Chinese patent document CN211475097U discloses a duct hoisting and installation structure, which includes a rectangular duct and a hoisting assembly. The hoisting assembly includes a U-shaped frame, a hanger rod, and an angle iron. The U-shaped frame includes an upper plate and a lower plate. The upper plate of the U-shaped frame is close to and fixed on the hoisting surface. The upper end of the hanger rod is detachably connected to the lower plate of the U-shaped frame, and the lower end of the hanger rod is detachably connected to the angle iron. The rectangular duct is pressed on the angle iron. The structure also includes a height gauge, which includes a first sleeve and a second sleeve. The first sleeve is fixed to the lower plate of the U-shaped frame and is perpendicular to the lower plate of the U-shaped frame. The upper end of the second sleeve is slidably sleeved with the lower end of the first sleeve in a vertical direction. The lower end of the second sleeve is vertically limited and abuts against the upper surface of the angle iron.

[0004] In the above technical solution, the positioning structure between the U-shaped frame, the hanger, and the angle iron can ensure that the angle iron remains horizontal during installation. However, when hoisting the ventilation duct, the ventilation duct needs to be placed on the support (angle iron) for leveling and alignment. However, there is no corresponding guiding structure between the support and the ventilation duct. Therefore, the leveling and alignment can only rely on the hoisting experience of the workers, which can easily lead to deviations between the ventilation duct and the support, resulting in uneven stress on the ventilation duct and affecting the stability of the ventilation duct hoisting. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a ventilation duct that is easy to install, which can facilitate quick leveling and alignment of the ventilation duct during hoisting, thereby improving the convenience of installation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ventilation duct that is easy to install, comprising multiple interconnected pipe bodies, each pipe body having a flange at its end, a detachable guide rod between the flanges on both sides of the pipe body, a support bracket on the outer side of the pipe body, a ceiling screw on both sides of the support bracket, and a horizontally extending guide groove on the support bracket, the guide groove being opposite to the guide rod, the guide rod being coupled to the guide groove to guide the pipe body during hoisting, facilitating leveling and alignment of the pipe body.

[0007] The present invention is further configured such that: the two ends of the guide rod serve as connecting ends, the tube body is provided with symmetrical connecting flanges, the connecting flanges are provided with connecting holes opposite to the guide rod, and the connecting holes are for the connecting ends to pass through.

[0008] The present invention is further configured such that: the outer periphery of the connecting end is provided with an external thread, and a locking nut is provided on one side of the connecting flange; the locking nut can be screwed into the connecting end to form a threaded engagement with the connecting end, thereby locking the connecting end.

[0009] The present invention is further configured such that: a through lock hole is provided on the connecting end, the lock hole is perpendicular to the axis of the guide rod, a connecting angle steel is fixed on the outer wall of the tube, a sleeve is provided on the connecting angle steel, a cavity is provided inside the sleeve, a locking rod that can slide along the axis of the sleeve is provided inside the cavity, and the locking rod can be inserted into the lock hole to fix the guide rod.

[0010] The present invention is further configured such that: a spring is provided inside the cavity, a convex ring is provided on the outer periphery of the locking rod, one end of the spring is fixed to the convex ring, and the other end is fixed to the inner wall of the sleeve, and the spring is used to prevent the locking rod from coming out of the lock hole.

[0011] The present invention is further configured such that: an expansion screw is provided at the end of the ceiling screw located away from the support bracket.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Because detachable guide rods are provided between the flanges on both sides of the pipe body, and horizontally extending guide grooves are provided on the supports, when installing the pipe, the pipe body is placed on the supports, and the guide rods are aligned with the guide grooves. After the guide rods are fully slid into the guide grooves to couple with each other, it can be ensured that the deviation angle between the ventilation duct and the supports is 0, thus enabling rapid leveling and alignment of the ventilation duct and improving the convenience of installation. Therefore, it effectively solves the technical problem that the lack of corresponding guide structure between the supports and ventilation ducts in the existing technology means that leveling and alignment can only rely on the hoisting experience of workers, which easily leads to deviations between the ventilation duct and the supports. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of Example 1 (I);

[0015] Figure 2 This is a schematic diagram of the overall structure of Example 1 (II);

[0016] Figure 3 This is a schematic diagram of the connection structure between the ceiling screw and the support bracket in Example 1;

[0017] Figure 4 This is a schematic diagram of the longitudinal cross-sectional structure of Example 2;

[0018] Figure 5 This is a partial enlarged structural diagram of section A in Example 2. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Example 1

[0022] like Figures 1 to 3As shown, this embodiment discloses a conveniently installed ventilation duct, including multiple pipe bodies 1. Both sides of each pipe body 1 are integrally formed with flanges 2 by hot pressing. During assembly, the flanges 2 of each pipe body 1 are aligned and fixed using flange connections. This allows multiple pipe bodies 1 to be spliced ​​together to form a ventilation duct. Supports 4 are provided on the outer side of each pipe body 1, and ceiling screws 5 are provided on both sides of the supports 4. Holes are provided on both sides of the supports 4 for the ceiling screws 5 to pass through. A [missing information - likely a design feature] is provided at the end of the ceiling screw 5 away from the supports 4. With expansion bolts 11, when installing the support bracket 4, first insert one end of the ceiling screw 5 into the hole of the support bracket 4, and screw in the corresponding nut to fix the ceiling screw 5 to the support bracket 4. Then mark the drilling points on the ceiling, drill holes to form installation holes, and press the ends of the expansion bolts 11 and the ceiling screw 5 into the installation holes in sequence to fix the ceiling screw 5 to the ceiling. This completes the installation of the support bracket 4. Then place the pipe body 1 behind the support bracket 4, and the support bracket 4 will support it. This completes the installation of the ventilation duct.

[0023] In this example, to facilitate leveling and alignment after the pipe is placed on the support 4, a detachable guide rod 3 is provided between the flanges 2 on both sides of the pipe body 1. The support 4 has a horizontally extending guide groove 41 (in the width direction of the support 4), which is opposite to the guide rod 3. When installing the ventilation duct, the pipe body 1 is first lifted and its position is adjusted so that the guide rod 3 is roughly aligned with the guide groove 41 of the support 4 above. The pipe body 1 is then slowly lowered, and the guide rod 3 gradually enters the guide groove 41. The inner wall of the guide groove 41 and the outer surface of the guide rod 3 form a coupling contact. During the lowering under gravity and possible fine-tuning, this coupling effect produces a guiding effect. The guide rod 3 continues to slide completely into the guide groove 41 until mutual coupling is achieved. At this point, the deviation angle between the ventilation duct and the support 4 is 0, thus enabling rapid leveling and alignment of the ventilation duct and improving the ease of installation.

[0024] In this embodiment, the connection structure of the guide rod 3 is as follows: the two ends of the guide rod 3 serve as connection ends 31, and the tube body 1 is provided with symmetrical connection flanges 6. The connection flanges 6 are fixed to the circumferential wall of the tube body 1 by welding direction. The connection flanges 6 are provided with connection holes opposite to the guide rod 3, and the connection holes allow the connection ends 31 to pass through. The outer circumference of the connection ends 31 is provided with external threads, and a locking nut 7 is provided on one side of the connection flanges 6. The locking nut 7 can be screwed into the connection ends 31 to form a threaded engagement with the connection ends 31, thereby locking the connection ends 31. By adopting a threaded connection, it is easier to process the whole and reduce the overall processing cost. In addition, it should be noted that a certain gap should be left between the connection flanges 6 and the flange 2 on the same plate to facilitate the rotation of the locking nut 7.

[0025] Example 2

[0026] like Figures 4 to 5 As shown, the difference in this embodiment is that a through locking hole 311 is provided on the connecting end 31. The locking hole 311 is perpendicular to the axis of the guide rod 3. The outer wall of the tube body 1 is fixed with a connecting angle steel 8 by welding. A sleeve 81 integrally formed with the connecting angle steel 8 is provided on the connecting angle steel 8. A cavity 811 is provided inside the sleeve 811. A locking rod 9 that can slide along the axis of the sleeve 81 is provided inside the cavity 811. In this way, after the connecting end 31 of the guide rod 3 is passed through the connecting hole, the locking rod 9 can be inserted into the locking hole 311 by sliding the locking rod 9 to fix the guide rod 3. Thus, the plug-in fixing method in this embodiment is more convenient and faster than the threaded fixing method of rotating the locking nut 7 in the embodiment.

[0027] Furthermore, to prevent the locking rod 9 from dislodging from the lock hole 311, a spring 10 is provided inside the cavity 811, and a protruding ring 91 is provided on the outer periphery of the locking rod 9. One end of the spring 10 is fixed to the protruding ring 91, and the other end is fixed to the inner wall of the sleeve 81. The preload of the spring 10 causes the locking rod 9 to tend to insert into the lock hole 311, thereby maintaining the inserted state in the locked state and preventing the locking rod 9 from dislodging. During disassembly, it is only necessary to overcome the elastic force of the spring 10 to pull the locking rod 9 out of the lock hole 311.

[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A ventilation duct that is easy to install, characterized in that, The device comprises multiple interconnected pipe bodies. Each pipe body has a flange at one end and a detachable guide rod between the flanges on both sides. A support bracket is provided on the outer side of the pipe body, and a ceiling screw is provided on both sides of the support bracket. A horizontally extending guide groove is provided on the support bracket, and the guide groove is opposite to the guide rod. The guide rod can be coupled with the guide groove to guide the pipe body during hoisting, facilitating leveling and alignment of the pipe body.

2. The ventilation duct for easy installation according to claim 1, characterized in that, The two ends of the guide rod serve as connecting ends. The tube body is provided with symmetrical connecting flanges, and the connecting flanges are provided with connecting holes opposite to the guide rod. The connecting holes are for the connecting ends to pass through.

3. The ventilation duct for easy installation according to claim 2, characterized in that, The connecting end has an external thread on its outer periphery, and a locking nut is provided on one side of the connecting flange. The locking nut can be screwed into the connecting end to form a threaded engagement with the connecting end, thereby locking the connecting end.

4. A conveniently installed ventilation duct according to claim 2, characterized in that, The connecting end is provided with a through lock hole, which is perpendicular to the axis of the guide rod. A connecting angle steel is fixed to the outer wall of the tube body. A sleeve is provided on the connecting angle steel. A cavity is provided inside the sleeve. A locking rod that can slide along the axis of the sleeve is provided inside the cavity. The locking rod can be inserted into the lock hole to fix the guide rod.

5. A conveniently installed ventilation duct according to claim 4, characterized in that, A spring is provided inside the cavity, and a protruding ring is provided on the outer periphery of the locking rod. One end of the spring is fixed to the protruding ring, and the other end is fixed to the inner wall of the sleeve. The spring is used to prevent the locking rod from coming out of the lock hole.

6. A ventilation duct for easy installation according to claim 1, characterized in that, The ceiling screw is equipped with an expansion bolt at the end furthest from the support bracket.

Images