Metal air pipe connecting assembly
By combining a worm gear and a double-rotating screw, along with the elastic structure of the positioning plate and clamping plate, the problems of offset and compatibility during duct connection are solved, achieving a stable and efficient duct connection.
Patent Information
- Application Number
- CN202422758445.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The existing metal duct connection requires multiple bolts for fixing, which causes the duct to shift. Different types of ducts also require different connection components, affecting connection efficiency and stability.
The system employs a combination of worm gear and double-rotating screw, and uses a slider and positioning mechanism to achieve automatic adjustment and stable fixation of the duct. The elastic fit between the positioning plate and the clamping plate improves the stability of the duct connection.
It enables automatic alignment and stable connection of ducts at different spacings, reduces vibration and displacement of ducts during operation, and improves connection efficiency and stability.
Smart Images

Figure CN223550026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal duct technology, specifically a metal duct connection component. Background Technology
[0002] Duct connectors are devices used to connect and secure ducts, playing a crucial role in HVAC systems. Duct connectors are typically made of metal or plastic and are used to connect ducts of different shapes and sizes. Existing ductwork is usually connected and secured using bolting machines. During this process, workers need to align the two ducts to ensure the bolts can be inserted between them. Because multiple bolts are required, workers cannot always hold the ducts steady, leading to misalignment and affecting the connection.
[0003] For example, the publication number CN202122744475.X discloses "A duct connection device". By setting a limiting device, it makes it convenient for workers to bolt the two ducts when connecting them, and avoids the problem of the ducts easily shifting when workers fix the two ducts.
[0004] The above method uses bolts to fasten the two air ducts together. However, existing metal air ducts come in different types and sizes, so different types of matching connecting components are needed to connect different types of air ducts. This can easily lead to incompatibility between the air ducts and the connecting components, and indirectly affect the efficiency of the air duct connection. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a metal duct connection assembly that solves the aforementioned problems.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a metal duct connection assembly, comprising a first duct, a second duct, and a connection assembly. The first duct and the second duct are fixedly connected by the connection assembly. The connection assembly includes a connecting plate, a double-rotating screw, a worm gear, a worm, a slider, and a positioning mechanism. The double-rotating screw is horizontally mounted on the inner side of the connecting plate. The middle part of the double-rotating screw is fixed to the inner side of the middle part of the worm gear. The worm gear meshes with the worm and rotates. The inner side of the middle part of the slider is threadedly engaged with the left end of the double-rotating screw. A positioning mechanism is mounted on the bottom of the slider. The inner side of the lower end of the positioning mechanism is fixedly connected to the upper left end of the connection point between the first duct and the second duct.
[0009] Preferably, the positioning mechanism includes a positioning plate, a clamping plate, a support rod, and a spring. The inner side of the rear end of the positioning plate is slidably engaged with the middle part of the support rod. The front end of the support rod is fixed to the left side of the rear end of the clamping plate. A spring is sleeved on the outer side of the middle part of the support rod. The inner side of the positioning plate is fixedly connected to the upper left side of the connection between air duct one and air duct two.
[0010] Preferably, the worm gear, worm, and double-helix screw are arranged along the same vertical line at their middle parts, which facilitates synchronous rotation and adjustment of the worm gear and double-helix screw by driving them through the worm.
[0011] Preferably, the slider and the positioning mechanism are installed opposite to each other on the left and right sides of the double-rotor screw, and the positioning mechanism moves synchronously with the slider to adjust, which facilitates the positioning mechanism to adapt to different lengths for positioning adjustment.
[0012] Preferably, the inner cross-section of the positioning plate is L-shaped, and four sets of clamps are provided. The four sets of clamps are distributed along the upper and lower sides of the inside of the positioning plate, and the clamps improve the auxiliary positioning effect on the edge of the air duct.
[0013] Preferably, the positioning plate is elastically engaged with the inner wall of the positioning plate by means of a spring and a support rod, and the positioning plate is positioned more stably by means of a spring.
[0014] Preferably, the four sets of positioning plates are distributed in pairs facing each other, and each of the four sets of clamps has two sets of support rods and springs on its outer side, thereby improving the effect of the clamps on the left and right sides to assist in fixing the edges of the air duct.
[0015] (III) Beneficial Effects
[0016] This utility model provides a metal duct connection assembly. It offers the following advantages: by incorporating the connection assembly, rotating the worm gear causes the worm wheel to rotate synchronously with the double-headed screw, and adjusting the distance between the two sets of adjusting sliders and the positioning mechanism in opposite directions, thus accommodating ducts with different spacing for connection and positioning; subsequently, four sets of clamps on the inner side of the positioning plate, in conjunction with support rods and springs on the outer left and right sides, assist in raising and fixing the duct, reducing vibration and displacement of the duct during operation, thereby improving the stability of the connected duct. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a top view of the structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the unfolded front view of the connecting component of this utility model;
[0020] Figure 4 This is a schematic diagram of the front view of the shrinkage structure of the connecting component of this utility model;
[0021] Figure 5 This is a schematic diagram of the right-side planar structure of the positioning mechanism of this utility model.
[0022] In the diagram: Duct 1-1, Duct 2-2, Connecting assembly-3, Connecting plate-31, Double-rotating screw-32, Worm gear-33, Worm-34, Slider-35, Positioning mechanism-36, Positioning plate-361, Clamping plate-362, Support rod-363, Spring-364. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1 and 2 This utility model provides a technical solution for a metal duct connection assembly: a metal duct connection assembly includes a duct 1, a duct 2, and a connection assembly 3, wherein the duct 1 and the duct 2 are fixedly connected by the connection assembly 3.
[0025] Please see Figure 3 and 4 This utility model provides a technical solution for a metal duct connection assembly: a metal duct connection assembly 3 includes a connecting plate 31, a double-rotating screw 32, a worm gear 33, a worm 34, a slider 35, and a positioning mechanism 36. The double-rotating screw 32 is horizontally mounted on the inner side of the connecting plate 31. The middle part of the double-rotating screw 32 is fixed to the inner middle part of the worm gear 33. The worm gear 33 meshes with the worm 34 and rotates. The inner middle part of the slider 35 is threadedly engaged with the left end of the double-rotating screw 32. A positioning mechanism is installed at the bottom of the slider 35. The lower inner side of the positioning mechanism 36 is fixedly connected to the upper left side of the connection between the first duct 1 and the second duct 2. The worm gear 33, worm 34 and double-rotating screw 32 are arranged in the middle of the same vertical line, which facilitates the synchronous rotation and adjustment of the worm gear 33 and double-rotating screw 32 by driving the worm gear 34. The slider 35 and the positioning mechanism 36 are installed opposite to each other on the left and right sides of the double-rotating screw 32, and the positioning mechanism 36 moves synchronously with the slider 35, which facilitates the positioning mechanism 36 to adapt to different lengths for positioning and adjustment.
[0026] Please see Figure 5This utility model provides a technical solution for a metal duct connection assembly: a metal duct connection assembly, the positioning mechanism 36 includes a positioning plate 361, a clamping plate 362, a support rod 363, and a spring 364. The upper inner side of the rear end of the positioning plate 361 is slidably engaged with the middle part of the support rod 363. The front end of the support rod 363 is fixed to the left side of the rear end of the clamping plate 362. The spring 364 is sleeved on the outer side of the middle part of the support rod 363. The inner side of the positioning plate 361 is fixedly connected to the upper left side of the connection between duct 1 and duct 2. The inner cross-section of the positioning plate 361 is L-shaped. Four sets of clamping plates 362 are provided, and the four sets of clamping plates 362 are distributed along the upper and lower sides of the interior of the positioning plate 361. The clamping plates 362 improve the auxiliary positioning effect of the air duct edge. The positioning plate 361 is elastically engaged with the inner wall of the positioning plate 361 by springs 364 and support rods 363. The springs improve the positioning stability of the positioning plate 361. The four sets of positioning plates 361 are distributed in pairs facing each other, and two sets of support rods 363 and springs 364 are correspondingly provided on the outer side of each of the four sets of clamping plates 362, thereby improving the auxiliary fixing effect of the air duct edge on the left and right sides of the clamping plates 362.
[0027] In use, the worm gear 34 is rotated to make the worm wheel 33 rotate synchronously with the double-helix screw 32, and the distance between the two sets of adjusting sliders 35 and the positioning mechanism 36 is adjusted in opposite directions to adapt to the ducts of different spacing lengths for connection and positioning of the corresponding length.
[0028] Subsequently, the four sets of clamps 362 on the inner side of the positioning plate 361, together with the support rods 363 and springs 364 set on the left and right sides on the outer side, are used to help to improve the fixed air duct, reduce the vibration and displacement of the air duct during operation, and thus improve the stability of the connected air duct.
[0029] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.
[0030] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.
[0031] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A metal duct connection assembly, comprising duct one (1) and duct two (2); Its features are: It also includes a connecting component (3), through which the first duct (1) and the second duct (2) are fixedly connected. The connecting component (3) includes a connecting plate (31), a double-rotating screw (32), a worm gear (33), a worm (34), a slider (35), and a positioning mechanism (36). The double-rotating screw (32) is horizontally installed on the inner side of the connecting plate (31). The middle part of the double-rotating screw (32) is fixed to the inner side of the middle part of the worm gear (33). The worm gear (33) meshes with the worm (34) and rotates. The inner side of the middle part of the slider (35) is threadedly engaged with the left end of the double-rotating screw (32). The bottom of the slider (35) is equipped with a positioning mechanism (36). The inner side of the lower end of the positioning mechanism (36) is fixedly connected to the upper left end of the connection between the first duct (1) and the second duct (2).
2. The metal duct connection assembly according to claim 1, characterized in that: The positioning mechanism (36) includes a positioning plate (361), a clamping plate (362), a support rod (363), and a spring (364). The inner side of the rear end of the positioning plate (361) is slidably engaged with the middle part of the support rod (363). The front end of the support rod (363) is fixed to the left side of the rear end of the clamping plate (362). The spring (364) is sleeved on the outer side of the middle part of the support rod (363). The inner side of the positioning plate (361) is fixedly connected to the upper left side of the connection between the first duct (1) and the second duct (2).
3. A metal duct connection assembly according to claim 1, characterized in that: The worm gear (33), worm (34) and double-helix screw (32) are arranged along the same vertical line at their middle parts.
4. A metal duct connection assembly according to claim 1, characterized in that: The slider (35) and the positioning mechanism (36) are installed opposite to each other on the left and right sides of the double-rotating screw (32), and the positioning mechanism (36) moves synchronously with the slider (35).
5. A metal duct connection assembly according to claim 2, characterized in that: The inner cross-section of the positioning plate (361) is L-shaped, and four sets of clamping plates (362) are provided. The four sets of clamping plates (362) are distributed along the upper and lower sides of the interior of the positioning plate (361).
6. A metal duct connection assembly according to claim 2, characterized in that: The positioning plate (361) is elastically engaged with the inner wall of the positioning plate (361) by a spring (364) and a support rod (363).
7. A metal duct connection assembly according to claim 2, characterized in that: The four sets of positioning plates (361) are arranged in pairs facing each other, and the outer sides of the four sets of clamping plates (362) are provided with two sets of support rods (363) and springs (364).
Citation Information
Patent Citations
Air pipe connecting device
CN216201411U