A clamp for quick connection of air ducts

Abstract

The utility model provides a kind of hoop for quick connecting air pipe, it is related to hoop technical field, including hoop main body, open-close rotating mechanism and quick locking assembly, hoop main body is at least provided two groups, and the end of two groups of hoop main body is provided open-close rotating mechanism, and the other end is provided quick locking assembly, the inboard of hoop main body is provided with sealing pad layer, quick locking assembly has locking state, and the turning of overturning handle is carried out, makes locking portion and blocking portion and enters locking state into resistance tightly. With the following advantages: quick connection: without complex tool, construction personnel can quickly complete hoop installation and locking, greatly shorten air pipe connection time, improve construction efficiency;Sealing is reliable: the inboard sealing pad layer and the hoop main body's hold tightly force synergistic effect, effectively fill air pipe connection gap, significantly reduce air leakage phenomenon, guarantee ventilation system air volume and wind pressure stability.

Description

Technical Field

[0001] This utility model relates to the field of clamp technology, and in particular to a clamp for quick connection of air ducts. Background Technology

[0002] At present, in large-scale projects, due to the large size of the collection ducts, the ducts are usually transported in sections for ease of transportation. Once at the installation site, the ducts are connected by bolts through flanges at both ends.

[0003] In ventilation system construction, duct connection efficiency and sealing are key challenges. Traditional flange connections require bolts to be tightened one by one, which is time-consuming and labor-intensive; existing clamps mostly rely on single clips or simple springs, resulting in problems such as loose locking and air leakage. Especially in large-scale duct installations (such as commercial building ventilation and factory ventilation networks), there is an urgent need for a clamp that is quick to operate and provides a stable seal to overcome the shortcomings of traditional solutions. Therefore, this application is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a clamp for quick connection of air ducts, which has the advantages of quick connection and reliable sealing, and solves the problems of time-consuming and laborious flange connection, and the existing clamps are prone to loose locking and air leakage.

[0005] To address the aforementioned problems, this utility model provides a quick-connect duct clamp, comprising a clamp body, an opening and closing rotation mechanism, and a quick-locking assembly. At least two sets of clamp bodies are provided, with the opening and closing rotation mechanism located at one adjacent end of each set and the quick-locking assembly at the other end. A sealing gasket layer is provided on the inner side of each clamp body. The quick-locking assembly includes a locking seat one, a locking seat two, a locking rod, and a flip handle. Locking seat one and locking seat two are respectively connected to the two sets of clamp bodies. Locking seat one has a blocking part. The locking rod includes a locking part and a connecting rod, which is hinged to the flip handle. The flip handle is hinged to locking seat two. The quick-locking assembly is in a locked state; rotating the flip handle causes the locking part to abut against the blocking part, entering the locked state.

[0006] Different numbers and lengths of clamp bodies can be set according to pipe diameter and different installation scenarios to improve adaptability.

[0007] The opening and closing rotation mechanism enables the clamp body to open and close, allowing it to be unfolded and fitted onto the pipe during clamp installation. The quick-locking component can be locked without complicated tools, allowing construction personnel to quickly complete the installation and locking of the clamp.

[0008] According to one embodiment of the present invention, the opening and closing rotation mechanism includes a first fixed seat, a second fixed seat, a connecting block and a pin. The first fixed seat and the second fixed seat are respectively connected to two sets of clamp bodies, and the two ends of the connecting block are connected to the first fixed seat and the second fixed seat through pins.

[0009] According to one embodiment of the present invention, a cotter pin is installed on the pin shaft for locking the pin shaft in position.

[0010] According to one embodiment of the present invention, the length of the connecting rod located between the locking part and the hinge point with the flip handle is adjustable, which can realize the adjustment of the locking force and further improve the adaptability.

[0011] According to one embodiment of the present invention, the connecting rod is an adjusting bolt, and the quick-locking assembly further includes an adjusting nut and a rotating shaft. The rotating shaft is provided with a through hole for the adjusting bolt to pass through. The rotating shaft is connected to the locking seat, and the adjusting nut is connected to the adjusting bolt. The locking force can be adjusted by rotating the adjusting nut.

[0012] According to one embodiment of the present invention, the locking part is a columnar body, and the blocking part is an arc-shaped card holder that matches the contour of the columnar body. The diameter of the arc-shaped card holder may be slightly larger than the diameter of the columnar body.

[0013] According to one embodiment of the present invention, the main body of the clamp is made of metal, preferably stainless steel.

[0014] According to one embodiment of the present utility model, the first locking seat, the second locking seat, the first fixing seat, the second fixing seat and the main body of the clamp are connected by welding or connecting parts, wherein the connecting parts are preferably bolt connecting parts.

[0015] According to one embodiment of the present invention, the cross-section of the clamp body is U-shaped, forming a U-shaped groove, and the sealing gasket is disposed in the U-shaped groove, which facilitates the installation and positioning of the sealing gasket.

[0016] Alternatively, the sealing gasket can be made of rubber, EVA, silicone, or other materials, utilizing the elasticity of these materials to achieve a seal and prevent leakage of the medium inside the duct.

[0017] According to one embodiment of the present invention, the flip handle is a U-shaped structure, and the two open ends of the U-shaped structure are hinged to the locking seat, which improves the structural stability. At the same time, the U-shaped flip handle is easy to operate.

[0018] The beneficial effects of this utility model are as follows: Through the design of the opening and closing rotating mechanism and the quick-locking component, it offers the following advantages: Quick connection: No complex tools are required; construction personnel can quickly complete the installation and locking of the clamp, significantly shortening the duct connection time, improving construction efficiency, and reducing reliance on operator skill; Reliable sealing: The synergistic effect of the inner sealing gasket and the clamp body effectively fills the duct connection gaps, significantly reducing air leakage, ensuring stable airflow and pressure in the ventilation system, and improving system operation; Stable structure: The cooperation between the clamp body and the quick-locking component ensures a continuous and stable clamping force on the duct, resisting airflow impact and external vibration, ensuring long-term reliable connection, and reducing subsequent maintenance needs. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 A schematic diagram of the overall structure of a clamp for quick connection of air ducts;

[0021] Figure 2 This is a schematic diagram showing the connection between the quick-locking component and the clamp body;

[0022] Figure 3 This is a schematic diagram showing the connection between the opening and closing rotating mechanism and the clamp body;

[0023] Figure 4 This is a schematic diagram of the quick-locking assembly.

[0024] Figure 5 This is a partial schematic diagram of the main body of the clamp. Detailed Implementation

[0025] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0026] Example 1:

[0027] A quick-connect duct clamp, specifically designed for large-diameter ducts (φ100 - φ1000mm), such as... Figure 1 It includes the clamp body, the opening and closing rotation mechanism 3, and the quick locking assembly 1.

[0028] In this embodiment, two sets of clamp bodies are provided, namely clamp body 2 and clamp body 4. In other embodiments, different numbers and lengths of clamp bodies can be provided according to the pipe diameter and different installation scenarios to improve adaptability.

[0029] The main body of the clamp is made of metal, preferably stainless steel, which has good strength and corrosion resistance. A sealing gasket 19 is provided on the inner side of the clamp body. The sealing gasket 19 can be made of rubber, EVA, silicone, etc., to achieve a seal by utilizing the elasticity of these materials to prevent leakage of the medium in the duct. The sealing gasket 19 can be set as a whole ring or in sections.

[0030] like Figure 5 The main body of the clamp has a U-shaped cross section, forming a U-shaped groove. The sealing gasket 19 is set in the U-shaped groove, which facilitates the installation and positioning of the sealing gasket 19.

[0031] An opening and closing rotation mechanism 3 is provided at one end of the two sets of clamp bodies adjacent to each other, and a quick locking assembly 1 is provided at the other end. The opening and closing rotation mechanism 3 is used to enable the clamp bodies to open and close and rotate, so that the clamp can be unfolded and fitted into the pipe during installation.

[0032] Opening and closing rotating mechanism 3, as shown Figure 3 It includes a first fixing seat 12, a second fixing seat 17, a connecting block 13 and a pin. The first fixing seat 12 and the second fixing seat 17 are respectively connected to the two sets of clamp bodies. The two ends of the connecting block 13 are connected to the first fixing seat 12 and the second fixing seat 17 through pins 14 and 18. A cotter pin 15 is installed on one side of the pin to lock the position of the pin.

[0033] The pin is made of metal, preferably stainless steel, which has rust-proof and wear-resistant properties. The hinge hole of the connecting block 13 is chamfered and lubricated (a self-lubricating coating can be applied) to ensure smooth rotation and reduce friction and the risk of jamming.

[0034] Fixing base 12 and fixing base 2 17 are preferably made of metal and are connected to the clamp body by welding or connectors, wherein bolt connectors are preferred.

[0035] like Figure 2 The quick-locking assembly 1 includes a first locking seat 5, a second locking seat 7, a locking rod 6, and a flip handle 11.

[0036] Locking seat 1 5 and locking seat 2 7 are respectively connected to the two sets of clamp bodies. The material is preferably metal. They are connected to the clamp bodies by welding or connectors, wherein the connectors are preferably bolt connectors.

[0037] The locking seat 5 is provided with a blocking part 51. The locking rod 6 includes a locking part 61 and a connecting rod 62. The connecting rod 62 is hinged to the flip handle 11. The flip handle 11 is hinged to the locking seat 7. The quick locking assembly 1 is in a locked state. When the flip handle 11 is rotated, the locking part 61 and the blocking part 51 are pressed together to enter the locked state.

[0038] like Figure 2The locking part 61 is a columnar body, and the blocking part 51 is an arc-shaped card holder that matches the outline of the columnar body. The diameter of the arc-shaped card holder can be slightly larger than the diameter of the columnar body.

[0039] The flip handle 11 has a U-shaped structure with the operating end tilted upwards for easy operation. The two open ends of the U-shaped structure are hinged to the locking seat 7 at the hinge point 8 to improve structural stability. At the same time, the U-shaped flip handle 11 is easy to operate.

[0040] The locking lever 6 is preferably made of stainless steel and is connected to the flip handle 11 to ensure flexible rotation.

[0041] The quick-locking component 1 can be locked without complicated tools, allowing construction workers to quickly install and lock the clamp.

[0042] Usage steps:

[0043] 1. Duct preparation: Clean debris from the ports and align the two duct sections (±3mm misalignment and ±3° tilt are allowed);

[0044] 2. Clamp installation: Open the clamp body and fit it into the duct connection part, so that the sealing gasket 19 covers the gap;

[0045] 3. Quick locking: Press the flip handle 11 with one hand to drive the double linkage → the clamp body retracts and tightens → the elastic pre-tightening unit is compressed → the arc-shaped card seat adapts and adjusts the angle. When you hear a "click" locking sound, the locking is complete.

[0046] 4. Inspection and Confirmation: Manually shake the duct to verify the locking stability, and run the ventilation system to test the air leakage rate.

[0047] Example 2:

[0048] Based on Example 1, this example adds a locking force adjustment function to further improve adaptability.

[0049] like Figure 4 The length of the connecting rod 62 located between the locking part 61 and the hinge point with the flip handle 11 is adjustable. Specifically, the connecting rod 62 is an adjusting bolt. The quick locking assembly 1 also includes an adjusting nut 10 and a rotating shaft 9. The rotating shaft 9 is provided with a through hole for the adjusting bolt to pass through. The rotating shaft 9 is connected to the locking seat 7. The adjusting nut 10 is connected to the adjusting bolt. The locking force can be adjusted by rotating the adjusting nut 10.

[0050] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A quick-connect duct clamp, characterized in that: The device includes a clamp body, an opening and closing rotating mechanism (3), and a quick-locking assembly (1). The clamp body has at least two sets, with the opening and closing rotating mechanism (3) located at one adjacent end of each set and the quick-locking assembly (1) located at the other end. A sealing gasket layer (19) is provided on the inner side of the clamp body. The quick-locking assembly (1) includes a locking seat one (5), a locking seat two (7), a locking rod (6), and a flip handle (11). The locking seat one (5) and the locking seat two (7)... The fast locking assembly (1) is connected to the two sets of clamp bodies respectively. The locking seat (5) is provided with a blocking part (51). The locking rod (6) includes a locking part (61) and a connecting rod (62). The connecting rod (62) is hinged to the flip handle (11). The flip handle (11) is hinged to the locking seat (7). The fast locking assembly (1) has a locked state. When the flip handle (11) is rotated, the locking part (61) and the blocking part (51) are pressed together to enter the locked state.

2. The quick-connect duct clamp according to claim 1, characterized in that: The opening and closing rotation mechanism (3) includes a first fixed seat (12), a second fixed seat (17), a connecting block (13) and a pin. The first fixed seat (12) and the second fixed seat (17) are respectively connected to two sets of clamp bodies. The two ends of the connecting block (13) are connected to the first fixed seat (12) and the second fixed seat (17) through pins.

3. The quick-connect duct clamp according to claim 2, characterized in that: A cotter pin (15) is installed on the pin shaft.

4. The quick-connect duct clamp according to any one of claims 1-3, characterized in that: The length of the connecting rod (62) between the locking part (61) and the hinge point with the flip handle (11) is adjustable.

5. The quick-connect duct clamp according to claim 4, characterized in that: The connecting rod (62) is an adjusting bolt. The quick-locking assembly (1) also includes an adjusting nut (10) and a rotating shaft (9). The rotating shaft (9) has a through hole for the adjusting bolt to pass through. The rotating shaft (9) is connected to the locking seat (7). The adjusting nut (10) is connected to the adjusting bolt.

6. The quick-connect duct clamp according to claim 1, characterized in that: The locking part (61) is a columnar body, and the blocking part (51) is an arc-shaped card holder that matches the outline of the columnar body.

7. The quick-connect duct clamp according to claim 1, characterized in that: The main body of the clamp is made of metal.

8. The quick-connect duct clamp according to claim 1 or 7, characterized in that: The locking seat one (5), locking seat two (7), fixing seat one (12), and fixing seat two (17) are connected to the clamp body by welding or connecting parts.

9. The quick-connect duct clamp according to claim 1, characterized in that: The main body of the clamp has a U-shaped cross section, forming a U-shaped groove, and the sealing gasket (19) is placed in the U-shaped groove.

10. The quick-connect duct clamp according to claim 1, characterized in that: The flip handle (11) has a U-shaped structure, and the two open ends of the U-shaped structure are hinged to the locking seat (7).

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