Fastening assembly for vent pipe support
By designing a fastening assembly for the ventilation duct support, and utilizing the combination of threaded rods and bolt rods, the L-shaped limiting block is pressed and fixed, solving the problem of loose connection between the ventilation duct and the support, and improving connection stability and protection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEZHOU DONGGENG AIR CONDITIONING EQUIPMENT CO LTD
- Filing Date
- 2025-06-14
- Publication Date
- 2026-05-08
AI Technical Summary
In the existing technology, the connection between the ventilation duct and the bracket is not tight enough, and a component is needed to increase the compressive force of the L-shaped limiting block on the ventilation duct to improve the connection tightness.
A fastening assembly for a ventilation duct support has been designed, including components such as a vertical rod, a rectangular box, a bidirectional threaded rod, an L-shaped threaded block, and a bolt rod. Through threaded connection and sliding fit, the L-shaped limiting block is squeezed and fixed, thereby enhancing the connection stability between the ventilation duct and the support.
The installation connection between the ventilation duct and the bracket is tightened, avoiding problems such as hand slippage, weld breakage, damage to the ventilation duct, and loosening of the nut block, thus enhancing the stability and protection of the overall structure.
Smart Images

Figure CN224214851U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ventilation duct installation technology, and in particular relates to a fastening component for ventilation duct support. Background Technology
[0002] Ventilation duct supports serve as the supporting structure for ventilation duct installation. They are fabricated on-site according to the operating parameters, working conditions, and spatial layout requirements of the ventilation ducts. Rectangular ventilation duct supports are often welded and fixed with C-shaped steel, and then fixed to the building roof to support the installation of the ventilation ducts.
[0003] When hoisting ventilation ducts onto ventilation duct supports, bolts and L-shaped limiting blocks are used to fix the supports and ventilation ducts. However, the bolts apply vertical force to the L-shaped limiting blocks, resulting in insufficient compressive contact between the L-shaped limiting blocks and the ventilation ducts. Therefore, a fastening component for ventilation duct supports is needed that can apply relative compressive force to the L-shaped limiting blocks, thereby securing the L-shaped limiting blocks to the ventilation ducts on the surface of the ventilation duct support and improving the tightness of the installation connection between the ventilation ducts and the supports. Utility Model Content
[0004] The purpose of this utility model is to provide a fastening component for a ventilation duct support, which applies relative compressive force to an L-shaped limiting block, thereby fastening the L-shaped limiting block to the ventilation duct on the surface of the ventilation duct support, improving the tightness of the installation connection between the ventilation duct and the support, and solving the technical problems mentioned in the background art.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A fastening assembly for a ventilation pipe support includes a vertical rod; a rectangular box is welded to the bottom end of the vertical rod; a bidirectional threaded rod is rotatably connected to the inner wall of the rectangular box; an L-shaped threaded block is threadedly connected to the surface of the bidirectional threaded rod; a slider is welded to the surface of the L-shaped threaded block; the slider is slidably connected to the inner wall of the rectangular box; a groove adapted to the slider is opened on the inner wall of the rectangular box; an L-shaped limiting block is provided at the top of the L-shaped threaded block; a bolt rod one is installed between the L-shaped limiting block and the L-shaped threaded block; a nut block is threadedly connected to the surface of the bolt rod one; a pressure plate is provided above the rectangular box; an internally threaded lug is welded to the surface of the vertical rod; a bolt rod two is threadedly connected to the inner wall of the internally threaded lug; and a pressure block is welded to the bottom end of the bolt rod two.
[0006] Preferably, the top of the rectangular box has a rectangular opening that matches the L-shaped threaded block.
[0007] Preferably, the end of the bidirectional threaded rod extends through to the outside of the rectangular box and is fixedly connected to a handle.
[0008] Preferably, a reinforcing member is welded together between the vertical rod and the rectangular box.
[0009] Preferably, a pad is attached to the top of the rectangular box, and the pad is a rubber pad.
[0010] Preferably, a washer is fitted on the surface of the bolt rod, and the washer is an elastic washer.
[0011] Preferably, a rectangular pad is adhered to the surface of the L-shaped limiting block.
[0012] The beneficial effects of this utility model are:
[0013] This utility model uses a bidirectional threaded rod to drive an L-shaped threaded block to move. Then, the L-shaped threaded block, through the cooperation of a bolt rod and a nut block, drives an L-shaped limiting block to move and clamp and fix the ventilation pipe placed on the top of the rectangular box. This achieves the purpose of applying relative compressive force to the L-shaped limiting block, thereby making the L-shaped limiting block fasten the ventilation pipe on the surface of the ventilation pipe support, thus improving the tightness of the installation connection between the ventilation pipe and the support.
[0014] 2. By setting up the handle block, this utility model increases the contact surface of the bidirectional threaded rod, avoiding hand slippage when directly holding and rotating the bidirectional threaded rod, thereby improving the stability when holding and rotating the bidirectional threaded rod.
[0015] 3. This utility model strengthens the welding between the vertical rod and the rectangular box by adding reinforcement components, thus preventing breakage due to the small welding surface.
[0016] 4. By setting up a pad, this utility model protects the top of the rectangular box, preventing the ventilation pipe from being damaged by the rectangular box when it comes into direct contact with it, thereby improving the protection of the ventilation pipe.
[0017] 5. By setting the washer, this utility model increases the friction on the surface of the nut block, preventing the nut block from loosening and falling off due to external vibration, thereby improving the stability of the nut block position.
[0018] 6. By setting a rectangular pad, this utility model protects the surface of the L-shaped limiting block, avoiding the situation where the L-shaped limiting block is directly in contact with the ventilation pipe and is squeezed and damaged, thereby improving the protection of the side of the ventilation pipe. Attached Figure Description
[0019] in:
[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0021] Figure 2 This is one embodiment of the present utility model. Figure 1A magnified view of point A in the middle;
[0022] Figure 3 This is a perspective view of a rectangular box and a bidirectional threaded rod according to an embodiment of the present invention;
[0023] Figure 4 This is one embodiment of the present utility model. Figure 3 A magnified view of point B in the middle.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Vertical rod, 2. Rectangular box, 3. Two-way threaded rod, 4. L-shaped threaded block, 5. Slider, 6. Slide groove, 7. Rectangular opening, 8. Handle block, 9. Reinforcing component, 10. Pad block, 11. L-shaped limit block, 12. Bolt rod one, 13. Nut block, 14. Washer, 15. Rectangular pad, 16. Pressure plate, 17. Internal threaded lug block, 18. Bolt rod two, 19. Pressure block. Detailed Implementation
[0026] In the following description, embodiments of the fastening assembly for the ventilation duct support of this utility model will be described with reference to the accompanying drawings. Example 1
[0027] Figure 1-4 This invention illustrates a fastening assembly for a ventilation duct support according to an embodiment of the present invention. It includes a vertical rod 1; a rectangular box 2 is welded to the bottom end of the vertical rod 1; a bidirectional threaded rod 3 is rotatably connected to the inner wall of the rectangular box 2; an L-shaped threaded block 4 is threadedly connected to the surface of the bidirectional threaded rod 3; a slider 5 is welded to the surface of the L-shaped threaded block 4; the slider 5 is slidably connected to the inner wall of the rectangular box 2; a groove 6 adapted to the slider 5 is provided on the inner wall of the rectangular box 2; a rectangular opening 7 adapted to the L-shaped threaded block 4 is provided on the top of the rectangular box 2; and a handle 8 is fixedly connected to the end of the bidirectional threaded rod 3 extending to the outside of the rectangular box 2. The handle 8 increases the contact surface of the bidirectional threaded rod 3, preventing hand injuries when directly rotating the bidirectional threaded rod 3. To prevent slippage, the stability of the bidirectional threaded rod 3 during rotation is improved. A reinforcing member 9 is welded between the vertical rod 1 and the rectangular box 2. The reinforcement member 9 strengthens the weld between the vertical rod 1 and the rectangular box 2, preventing breakage due to the small weld surface. An L-shaped limiting block 11 is provided on the top of the L-shaped threaded block 4. A bolt rod 12 is installed between the L-shaped limiting block 11 and the L-shaped threaded block 4. A nut block 13 is threadedly connected to the surface of the bolt rod 12. A pressure plate 16 is provided above the rectangular box 2. An internal threaded ear block 17 is welded to the surface of the vertical rod 1. A bolt rod 18 is threadedly connected to the inner wall of the internal threaded ear block 17. A pressure block 19 is welded to the bottom end of the bolt rod 18. Example 2
[0028] Figure 1-4 This invention illustrates a fastening assembly for a ventilation duct support according to an embodiment of the present invention. The assembly includes a vertical rod 1; a rectangular box 2 is welded to the bottom end of the vertical rod 1; a bidirectional threaded rod 3 is rotatably connected to the inner wall of the rectangular box 2; an L-shaped threaded block 4 is threadedly connected to the surface of the bidirectional threaded rod 3; a slider 5 is welded to the surface of the L-shaped threaded block 4; the slider 5 is slidably connected to the inner wall of the rectangular box 2; a groove 6 adapted to the slider 5 is provided on the inner wall of the rectangular box 2; an L-shaped limiting block 11 is provided at the top of the L-shaped threaded block 4; a bolt rod 12 is installed between the L-shaped limiting block 11 and the L-shaped threaded block 4; a nut block 13 is threadedly connected to the surface of the bolt rod 12; a pressure plate 16 is provided above the rectangular box 2; an internally threaded lug 17 is welded to the surface of the vertical rod 1; a bolt rod 18 is threadedly connected to the inner wall of the internally threaded lug 17; and a pressure block 1 is welded to the bottom end of the bolt rod 18. 9. A pad 10 is attached to the top of the rectangular box 2. The pad 10 is a rubber pad. The pad 10 protects the top of the rectangular box 2 and prevents the ventilation pipe from being damaged by the rectangular box 2 when it comes into direct contact with it, thus improving the protection of the ventilation pipe. A washer 14 is fitted on the surface of the bolt rod 12. The washer 14 is an elastic washer. The washer 14 increases the friction on the surface of the nut block 13 and prevents the nut block 13 from loosening and falling off due to external vibration, thus improving the stability of the position of the nut block 13. A rectangular pad 15 is attached to the surface of the L-shaped limiting block 11. The rectangular pad 15 protects the surface of the L-shaped limiting block 11 and prevents the L-shaped limiting block 11 from being squeezed and damaged when it comes into direct contact with the ventilation pipe, thus improving the protection of the side of the ventilation pipe.
[0029] Working Principle: In use, the user places the ventilation pipe on top of the rectangular box 2, then rotates the bidirectional threaded rod 3 to move the L-shaped threaded block 4 within the rectangular opening 7. During this process, the movement of the L-shaped threaded block 4 is limited by the cooperation of the sliding groove 6 and the slider 5, ensuring the stability of the L-shaped threaded block 4 during movement. Subsequently, the L-shaped threaded block 4, through the cooperation of the bolt rod 12 and the nut block 13, moves the L-shaped limiting block 11 to clamp and fix the ventilation pipe placed on top of the rectangular box 2. The bolt rod 12 and the nut block 13... The use of the mother block 13 allows for the disassembly of the L-shaped limiting block 11 and the L-shaped threaded block 4, facilitating subsequent maintenance and replacement of the L-shaped limiting block 11. The structure is simple and economical. Then, the pressure plate 16 is placed on top of the ventilation pipe. Next, the bolt rod 18 is rotated and moved down in the inner cavity of the internal threaded ear block 17, causing the pressure block 19 to press the pressure plate 16 to press down and fix the top of the ventilation pipe. This achieves the application of relative compressive force to the L-shaped limiting block, thereby making the L-shaped limiting block fasten the ventilation pipe on the surface of the ventilation pipe support, improving the tightness of the installation connection between the ventilation pipe and the support.
[0030] In summary: The fastening assembly for this ventilation duct support uses a bidirectional threaded rod 3 to move an L-shaped threaded block 4. The L-shaped threaded block 4, through the cooperation of bolt rod 12 and nut block 13, moves an L-shaped limiting block 11 and clamps and fixes the ventilation duct placed on top of the rectangular box 2. This achieves the goal of applying relative compressive force to the L-shaped limiting block, thereby fastening the ventilation duct on the surface of the ventilation duct support and improving the tightness of the installation connection between the ventilation duct and the support.
Claims
1. A fastening assembly for a ventilation duct support, characterized in that, Includes a vertical rod (1): A rectangular box (2) is welded to the bottom end of the vertical rod (1). A double-threaded rod (3) is rotatably connected to the inner wall of the rectangular box (2). An L-shaped threaded block (4) is threaded to the surface of the double-threaded rod (3). A slider (5) is welded to the surface of the L-shaped threaded block (4). The slider (5) is slidably connected to the inner wall of the rectangular box (2). A groove (6) adapted to the slider (5) is opened on the inner wall of the rectangular box (2). The top of the L-shaped threaded block (4) is... An L-shaped limiting block (11) is provided, and a bolt rod (12) is installed between the L-shaped limiting block (11) and the L-shaped threaded block (4). A nut block (13) is threadedly connected to the surface of the bolt rod (12). A pressure plate (16) is provided above the rectangular box (2). An internal threaded ear block (17) is welded to the surface of the vertical rod (1). A bolt rod (18) is threadedly connected to the inner wall of the internal threaded ear block (17). A pressure block (19) is welded to the bottom end of the bolt rod (18).
2. The fastening assembly for the ventilation duct support according to claim 1, characterized in that, The top of the rectangular box (2) has a rectangular opening (7) that is adapted to the L-shaped threaded block (4).
3. The fastening assembly for a ventilation duct support according to claim 2, characterized in that, The end of the bidirectional threaded rod (3) extends through to the outside of the rectangular box (2) and is fixedly connected to a handle (8).
4. The fastening assembly for the ventilation duct support according to claim 3, characterized in that, The vertical rod (1) and the rectangular box (2) are welded together with a reinforcing member (9).
5. The fastening assembly for the ventilation duct support according to claim 4, characterized in that, A pad (10) is attached to the top of the rectangular box (2), and the pad (10) is a rubber pad.
6. The fastening assembly for the ventilation duct support according to claim 5, characterized in that, A washer (14) is fitted on the surface of the bolt rod (12), and the washer (14) is an elastic washer.
7. The fastening assembly for a ventilation duct support according to claim 6, characterized in that, A rectangular pad (15) is attached to the surface of the L-shaped limiting block (11).