Metal air pipe connecting device

By using insert frames, sealing rings and connecting components in the metal air duct connection device, the problems of cumbersome connections and poor sealing of multiple sets of square air ducts are solved, and more efficient air sealing and simplified connection process are achieved.

CN222255516UActive Publication Date: 2024-12-27CHUZHOU JIUSHUO ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202421173133.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2024-12-27
Estimated Expiration
2034-05-28

AI Technical Summary

Technical Problem

The existing square air ducts are cumbersome to connect through multiple sets of bolts, which are inconvenient to maintain and disassemble and have poor sealing properties, which easily lead to air leakage.

Method used

A metal air duct connection device is designed, using insert frames and sealing rings to improve sealing, and simplifies the connection process through connecting components and reduces the use of bolts, including rotary rods, limit holes, insert plates, pull rods and springs, so as to achieve Quick connection and easy removal.

Benefits of technology

Improves the sealing of air duct connections, prevents air leakage, and simplifies the connection process, reduces operational complexity and disassembly time, and enables quick connection and convenient maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a metal air pipe connecting device, belongs to the technical field of pipeline connection, and aims to solve the problems that adjacent square air pipes are connected through a plurality of groups of bolts, the connection operation of the plurality of groups of bolts is relatively complicated, the disassembly is relatively inconvenient during later maintenance, the sealing performance of the connecting part is relatively poor during bolt connection, and the service life of the square air pipes is influenced. And air leakage is easily caused. Comprising a square air pipe, an inserting frame is installed in one end of the square air pipe and sleeved with a sealing ring, and connecting assemblies are installed on the two sides of the square air pipe. According to the metal air pipe connecting device, through the arrangement of the inserting frame and the sealing ring, the sealing performance of connection between the square air pipes is improved, air leakage is prevented, when the sealing ring and the inserting frame clamp the square air pipes, the alignment effect is achieved, through the arrangement of the connecting assembly, connection of the square air pipes is simple, multiple sets of bolts are not needed for connection, and the connecting efficiency is improved. And the connection speed is high, and disassembly is convenient during later maintenance.
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Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline connection, and in particular relates to a metal air duct connection device. Background Art

[0002] In places where a large number of people gather, such as shopping malls, the natural ventilation effect is poor due to the large depth of the building, and air supply equipment and air ducts are needed to supply air to the room. Central air conditioning also needs to use air ducts to transport gas. Air ducts can be divided into square and round air ducts. Square air ducts are widely used in the fields of air supply and central air conditioning.

[0003] The existing square air ducts are connected to adjacent square air ducts by multiple sets of bolts. On the one hand, the operation of connecting with multiple sets of bolts is cumbersome, and it is inconvenient to disassemble during later maintenance (the air ducts are usually hoisted on the roof, which requires high-altitude work. The disassembly time is long when multiple sets of bolts are connected, and the disassembly is inconvenient). On the other hand, when the bolts are connected, the sealing of the connection is poor, which easily causes air leakage. Therefore, a technical measure is proposed to solve the problem that the existing square air ducts are connected to adjacent square air ducts by multiple sets of bolts, the operation of connecting with multiple sets of bolts is cumbersome, and it is inconvenient to disassemble during later maintenance. When the bolts are connected, the sealing of the connection is poor, which easily causes air leakage. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide a metal air duct connection device, which aims to solve the problem that the existing square air ducts are connected to adjacent square air ducts by multiple sets of bolts. The connection operation of multiple sets of bolts is cumbersome and it is inconvenient to disassemble during later maintenance. When the bolts are connected, the sealing of the connection is poor, which easily causes air leakage.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a metal air duct connecting device, including a square air duct, an insertion frame is installed inside one end of the square air duct, a sealing ring is arranged outside the insertion frame, and connecting components are installed on both sides of the square air duct. Thanks to the setting of the insertion frame and the sealing ring, the sealing of the connection between the square air ducts is improved to prevent air leakage. At the same time, thanks to the setting of the connecting component, the connection of the square air duct is relatively simple, does not require multiple sets of bolts for connection, the connection speed is fast, and it is also convenient to disassemble during later maintenance.

[0008] Furthermore, the sealing ring is slidably engaged with an end of the square air duct away from the insertion frame.

[0009] Furthermore, the connecting assembly includes a rotating rod, which is fixedly installed on the side of the square air duct, the rotating rod is rotatably connected to a swivel, a connecting rod is installed on the outer side of the swivel, a vertical rod is installed on one side of the surface of the connecting rod, and a plug plate is installed on the end of the vertical rod away from the connecting rod.

[0010] Furthermore, a limiting hole is provided at the center of the swivel, the swivel rod is rotatably connected to the limiting hole, the swivel is rotatably connected to the swivel rod via the limiting hole, and the insert plate is arranged in an arc shape, which facilitates the squeezing of the limiting rod.

[0011] Furthermore, the connection assembly also includes a fixing plate, which is installed on a side of the square air duct away from the rotating rod, a slot is opened in the fixing plate, and a mounting block is installed on the upper end of one side of the fixing plate.

[0012] Furthermore, an intermediate rod is slidably passed through the side of the mounting block, one end of the intermediate rod is connected to a pull rod, the end of the intermediate rod away from the pull rod is connected to an extrusion plate, the extrusion plate is slidably connected to the inside of the mounting block, a spring is arranged on the outer sleeve of the intermediate rod, one end of the spring is fixedly mounted on the side of the extrusion plate, the other end of the spring is mounted inside the mounting block, a push rod is installed on the side of the extrusion plate away from the spring, the push rod is slidably connected to the mounting block, and the other end of the push rod is connected to a limiting rod.

[0013] Furthermore, the lower surface of the limit rod is against the upper surface of the side plate, the slot is adapted to the plug plate, and the limit rod is spherically arranged at one end away from the push rod. Thanks to the arrangement of the limit rod, when the plug block enters the slot, it is convenient to squeeze the limit rod to move in the direction away from the fixed plate.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model improves the sealing performance of the connection between square air ducts and prevents air leakage by providing an insert frame and a sealing ring. When the sealing ring and the insert frame engage the square air duct, the utility model plays a role of alignment, aligning one end of the second square air duct provided with the sealing ring with the end of the first air duct away from the sealing ring and engaging the square air duct, and then pushing the second air duct to completely engage the first air duct.

[0017] Through the setting of the connecting component, the connection of the square air duct is relatively simple, and does not require multiple sets of bolts for connection. The connection speed is fast and it is also convenient to disassemble during later maintenance. By rotating the connecting rod from a vertical state to a horizontal state, the rotation of the connecting rod drives the plug plate to rotate. When the plug plate rotates into the slot, an extrusion force is provided to the limit rod. Under the action of the extrusion force, the limit rod moves in the direction away from the plug plate. When the plug plate completely enters the slot, the spring rebounds and drives the lower surface of the limit rod to press against the upper surface of the plug block, completing the limitation of the plug block, thereby completing the connection of the two sets of square air ducts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model installed on a square air duct;

[0020] Figure 2 It is a schematic diagram of the side view structure of a square air duct;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the utility model in a separated state;

[0023] Figure 5 Schematic diagram of the connection structure between the pull rod and the moving rod.

[0024] The marks in the attached drawings are: 1. square air duct; 2. connecting assembly; 3. plug-in frame; 4. sealing ring; 201. swivel; 202. swivel rod; 203. connecting rod; 204. fixing plate; 205. mounting block; 206. pull rod; 207. limiting hole; 208. vertical rod; 209. plug-in plate; 210. slot; 211. middle rod; 212. spring; 213. extrusion plate; 214. push rod; 215. limiting rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] This specific implementation is a metal air duct connection device, and its structural schematic diagram is as follows Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a square air duct 1 is provided with an insert frame 3 at one end of the square air duct 1, a sealing ring 4 is provided on the outer cover of the insert frame 3, connecting components 2 are provided on both sides of the square air duct 1, the sealing ring 4 is slidably engaged with the end of the square air duct 1 away from the insert frame 3, and the connecting component 2 includes a rotating rod 202, the rotating rod 202 is fixedly installed on the side of the square air duct 1, the rotating rod 202 is rotatably connected with a rotating ring 201, a connecting rod 203 is installed on the outer side of the rotating ring 201, a vertical rod 208 is installed on one side of the surface of the connecting rod 203, and a plug plate 209 is installed on the end of the vertical rod 208 away from the connecting rod 203, a limiting hole 207 is provided at the center of the rotating ring 201, the rotating rod 202 is rotatably connected to the limiting hole 207, and the rotating ring 201 is rotatably connected to the rotating rod 202 through the limiting hole 207. The plug plate 209 is arranged in an arc shape, and the connecting component 2 also includes a fixing plate 204, which is installed on the side of the square air duct 1 away from the rotating rod 202. A slot 210 is opened in the fixing plate 204, and a mounting block 205 is installed on the upper end of one side of the fixing plate 204. An intermediate rod 211 is slidably passed through the side of the mounting block 205, and one end of the intermediate rod 211 is connected to the pull rod 206. The end of the intermediate rod 211 away from the pull rod 206 is connected to the extrusion plate 213, and the extrusion plate 213 is slidably connected to the inside of the mounting block 205. A spring 212 is provided on the outer sleeve of the intermediate rod 211, and one end of the spring 212 is fixedly installed on the side of the extrusion plate 213, and the other end of the spring 212 is installed inside the mounting block 205. The extrusion plate 213 is installed on the side away from the spring 212. There is a push rod 214, which is slidably connected to the mounting block 205. The other end of the push rod 214 is connected to a limiting rod 215. The lower surface of the limiting rod 215 is against the upper surface of the side plate. The slot 210 is adapted to the plug plate 209. The limiting rod 215 is spherically arranged at one end away from the push rod 214. The end of the second square air duct 1 provided with a sealing ring 4 is aligned with the end of the first air duct away from the sealing ring 4 and inserted. Then, the second air duct is pushed to be completely inserted into the first air duct. The connecting rod 203 is rotated from a vertical state to a horizontal state. The connecting rod 203 rotates to drive the swivel 201 to rotate along the rotating rod 202. When the connecting rod 203 rotates, the vertical rod 208 and the plug plate 209 are synchronously driven to rotate. When the plug plate 209 rotates into the slot 210, the plug plate 209 and When the limiting rod 215 contacts and the plug plate 209 contacts the limiting rod 215, an extrusion force is provided to the limiting rod 215. Under the action of the extrusion force, the limiting rod 215 moves in the direction away from the plug plate 209. The movement of the limiting rod 215 drives the push rod 214 to move horizontally. The horizontal movement of the push rod 214 drives the extrusion plate 213 to move horizontally. The horizontal movement of the extrusion plate 213 drives the intermediate rod 211 to move horizontally. When the extrusion plate 213 moves horizontally, the spring 212 is squeezed. When the intermediate rod 211 moves horizontally, the pull rod 206 is driven to move horizontally. When the plug plate 209 completely enters the slot 210, the spring 212 rebounds and drives the lower surface of the limiting rod 215 to press against the upper surface of the plug block, thereby completing the limiting of the plug block. When the square air duct 1 needs to be disassembled for maintenance,Pull the pull rod 206 in a direction away from the fixing plate 204, pull the pull rod 206 to drive the limit rod 215 away from the plug block, then rotate the connecting plate to drive the plug plate 209 to disengage from the slot 210, then release the connection of the square air duct 1, and take out the square air duct 1.

[0027] Working principle: When connecting the square air ducts 1, align the end of the second square air duct 1 with the sealing ring 4 with the end of the first air duct away from the sealing ring 4 and insert it, then push the second air duct to completely insert it into the first air duct. By setting the insertion frame 3 and the sealing ring 4, the sealing of the connection between the square air ducts 1 is improved to prevent air leakage.

[0028] Then, the two air ducts are connected using the connecting assembly 2. The specific method is to rotate the connecting rod 203 from a vertical state to a horizontal state (in a normal state, the plug plate 209 is at the lowest point and the connecting rod 203 is in a vertical state). The connecting rod 203 rotates to drive the swivel 201 to rotate along the rotating rod 202. When the connecting rod 203 rotates, the vertical rod 208 and the plug plate 209 are simultaneously driven to rotate. When the plug plate 209 rotates and enters the slot 210, the plug plate 209 contacts the limit rod 215. When the plug plate 209 contacts the limit rod 215, an extrusion force is provided to the limit rod 215. Under the action of the extrusion force, the limit rod 215 moves in a direction away from the plug plate 209. The limit rod 215 5 moves to drive the push rod 214 to move horizontally, the push rod 214 moves horizontally to drive the extrusion plate 213 to move horizontally, the extrusion plate 213 moves horizontally to drive the middle rod 211 to move horizontally, the extrusion plate 213 moves horizontally to squeeze the spring 212, and the middle rod 211 moves horizontally to drive the pull rod 206 to move horizontally. When the plug plate 209 completely enters the slot 210, the spring 212 rebounds to drive the lower surface of the limiting rod 215 to press against the upper surface of the plug block to limit the plug block, thereby completing the connection of the two groups of square air ducts 1. Through the setting of the connecting component 2, the connection of the square air duct 1 is relatively simple, and does not require multiple groups of bolts for connection. The connection speed is fast and it is also convenient to disassemble during later maintenance.

[0029] When the square air duct 1 needs to be disassembled for maintenance, the pull rod 206 is pulled away from the fixing plate 204 to drive the limit rod 215 away from the plug block, and then the connecting plate is rotated to drive the plug plate 209 to disengage from the slot 210, and then the connection of the square air duct 1 is released and the square air duct 1 is taken out.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A metal air duct connection device, comprising a square air duct (1), characterized in that: An insert frame (3) is installed inside one end of the square air duct (1), a sealing ring (4) is provided on the outer cover of the insert frame (3), and connection components (2) are installed on both sides of the square air duct (1).

2. A metal air duct connection device according to claim 1, characterized in that: The sealing ring (4) is slidably engaged with an end of the square air duct (1) away from the insertion frame (3).

3. A metal air duct connection device according to claim 1, characterized in that: The connecting assembly (2) comprises a rotating rod (202), the rotating rod (202) being fixedly mounted on the side of the square air duct (1), the rotating rod (202) being rotatably connected to a rotating ring (201), a connecting rod (203) being mounted on the outer side of the rotating ring (201), a vertical rod (208) being mounted on one side of the surface of the connecting rod (203), and a plug plate (209) being mounted on one end of the vertical rod (208) away from the connecting rod (203).

4. A metal air duct connection device according to claim 3, characterized in that: A limiting hole (207) is provided at the center of the rotating ring (201), the rotating rod (202) is rotatably connected to the limiting hole (207), the rotating ring (201) is rotatably connected to the rotating rod (202) via the limiting hole (207), and the plug plate (209) is arranged in an arc shape.

5. A metal air duct connection device according to claim 4, characterized in that: The connection assembly (2) further comprises a fixing plate (204), the fixing plate (204) being mounted on a side of the square air duct (1) away from the rotating rod (202), a slot (210) being provided in the fixing plate (204), and a mounting block (205) being mounted on an upper end of one side of the fixing plate (204).

6. A metal air duct connection device according to claim 5, characterized in that: An intermediate rod (211) is slidably passed through the side of the mounting block (205), one end of the intermediate rod (211) is connected to a pull rod (206), one end of the intermediate rod (211) away from the pull rod (206) is connected to an extrusion plate (213), the extrusion plate (213) is slidably connected to the inside of the mounting block (205), a spring (212) is provided on the outer sleeve of the intermediate rod (211), one end of the spring (212) is fixedly mounted on the side of the extrusion plate (213), the other end of the spring (212) is mounted inside the mounting block (205), a push rod (214) is installed on the side of the extrusion plate (213) away from the spring (212), the push rod (214) is slidably connected to the mounting block (205), and the other end of the push rod (214) is connected to a limiting rod (215).

7. A metal air duct connection device according to claim 6, characterized in that: The lower surface of the limiting rod (215) abuts against the upper surface of the side plate, the slot (210) is adapted to the plug plate (209), and the end of the limiting rod (215) away from the push rod (214) is spherically arranged.