Finished fire-resistant air pipe convenient to assemble

Abstract

The utility model relates to the technical field of fire-resistant air pipes, and discloses a finished fire-resistant air pipe convenient to assemble, which comprises a fire-resistant air pipe main body, a connecting assembly is arranged on the surface of the fire-resistant air pipe main body, the connecting assembly comprises a first connecting frame and a second connecting frame, the top of the first connecting frame is fixedly provided with a limiting insertion frame, and the top of the second connecting frame is fixedly provided with a second limiting insertion frame. A limiting inserting groove is formed in an inner cavity of the second connecting frame, and positioning boxes are fixedly installed on the periphery of the second connecting frame. Through the arrangement of the connecting assembly, two same fire-resistant air pipe bodies can be connected, the positioning insertion rod can be driven to be separated from the positioning insertion groove in the limiting insertion frame by pulling the pull head, disassembly is convenient, the high-damping spring is in a compressed state at the moment, the pull head is loosened, the high-damping spring rebounds to drive the movable plate and the positioning insertion rod to return to the original position, and the fire-resistant air pipe bodies are fixed. Therefore, connection is convenient, bolt connection is replaced, and operation is simple, convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of fire-resistant air duct technology, and in particular to a prefabricated fire-resistant air duct that is easy to assemble. Background Technology

[0002] Fire-resistant ducts are ventilation pipes used for fire prevention and high-temperature resistance. As the name suggests, fire-resistant ducts are ventilation pipes with fire-resistant properties. They are specially designed and treated in terms of materials, structure and manufacturing process to meet the requirements of maintaining stable performance in high-temperature environments. They are mostly used for ventilation in factories. When installing fire-resistant ducts, they need to be connected. The traditional connection method is bolt connection, which is relatively difficult to disassemble during duct inspection and maintenance.

[0003] Therefore, those skilled in the art have provided a ready-made fire-resistant duct that is easy to assemble, in order to solve the problems mentioned in the background art. Utility Model Content

[0004] To address the issue that traditional bolt connections are required during the installation of fire-resistant ducts, which make disassembly difficult during maintenance and repair, this invention provides a prefabricated fire-resistant duct that is easy to assemble.

[0005] This utility model provides a prefabricated fire-resistant air duct that is easy to assemble, and adopts the following technical solution:

[0006] A prefabricated fire-resistant duct that is easy to assemble includes a fire-resistant duct body. A connecting assembly is provided on the surface of the fire-resistant duct body. The connecting assembly includes a first connecting frame and a second connecting frame. A limit frame is fixedly installed on the top of the first connecting frame. A limit slot is opened in the inner cavity of the second connecting frame. Positioning boxes are fixedly installed on all four sides of the second connecting frame. A high-damping spring is fixedly installed on one side of the inner cavity of the positioning box. A movable plate is fixedly installed on one end of the high-damping spring. A pull rod is fixedly installed on one side of the movable plate. A pull head is fixedly installed on one end of the pull rod. A positioning insert is fixedly installed on the other side of the movable plate.

[0007] By adopting the above technical solution and setting up connecting components, two identical fire-resistant air duct bodies can be connected. By pulling the pull head, the positioning rod can be disengaged from the positioning slot in the limiting frame for easy disassembly. At this time, the high-damping spring is in a compressed state. When the pull head is released, the high-damping spring rebounds and drives the movable plate and positioning rod back to their original positions. The positioning rod is then inserted into the positioning slot in the limiting frame, thus facilitating connection.

[0008] Optionally, the fire-resistant duct body includes a color steel layer, a fire-retardant core layer, and an iron sheet inner layer. The color steel layer is located on the outer surface of the fire-retardant core layer, and the iron sheet inner layer is located on the inner wall of the fire-retardant core layer.

[0009] By adopting the above technical solutions, the color steel layer and the inner iron sheet layer ensure the strength of the fire-resistant air duct body inside and out, while the fireproof and flame-retardant core layer ensures the fire resistance performance of the fire-resistant air duct body.

[0010] Optionally, both the first connecting frame and the second connecting frame are fixedly connected to the color steel layer, and both the first connecting frame and the second connecting frame are metal frames.

[0011] By adopting the above technical solution, the color steel layer can support the first connecting frame and the second connecting frame, and the metal frame ensures the strength of the first connecting frame and the second connecting frame.

[0012] Optionally, the number of positioning boxes, movable plates, pull rods and pull heads are all four, the number of high-damping springs is twenty-four, and the number of positioning inserts is eight.

[0013] By adopting the above technical solution, a single positioning box, movable plate, pull rod and pull head, six high-damping springs and two positioning plugs form four sets of limiting structures, which can connect the two fire-resistant air duct bodies around their perimeter to ensure stability.

[0014] Optionally, the surface of the limiting frame is provided with a positioning slot, and the positioning slot fits with the positioning rod.

[0015] By adopting the above technical solution, the positioning slot and the positioning rod fit together, which can limit the positioning rod and make the positioning rod stable.

[0016] Optionally, guide sliders are fixedly installed on both sides of the movable plate, and a guide groove is provided in the inner cavity of the positioning box, with the guide sliders slidably connected to the guide groove.

[0017] By adopting the above technical solution, the guide slider and the guide groove are used together to guide the movable plate, making the movable plate stable when it moves.

[0018] Optionally, the zipper pull is a metal button, and the surface of the zipper pull has anti-slip texture.

[0019] By adopting the above technical solution, the metal button ensures the strength of the zipper pull, and the anti-slip texture plays a role in preventing slippage.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. This utility model, by setting a connecting component, can connect two identical fire-resistant air duct bodies. By pulling the pull head, the positioning rod can be disengaged from the positioning slot in the limiting frame, which is convenient for disassembly. At this time, the high-damping spring is in a compressed state. When the pull head is released, the high-damping spring rebounds and drives the movable plate and positioning rod back to their original positions. The positioning rod is then inserted into the positioning slot in the limiting frame, thus facilitating connection and replacing bolt connection. The operation is simple, convenient and quick.

[0022] 2. This utility model ensures the strength of the fire-resistant duct body by setting a color steel layer and an iron sheet inner layer. The fireproof and flame-retardant core layer ensures the fire resistance of the fire-resistant duct body. The color steel layer can support the first and second connecting frames. The metal frame ensures the strength of the first and second connecting frames. A single positioning box, a movable plate, a pull rod and a pull head, six high-damping springs and two positioning rods form four sets of limiting structures, which can connect the two fire-resistant duct bodies around their perimeter to ensure stability. The positioning slot fits into the positioning rod to limit the positioning rod and make it stable. The guide slider and the guide groove work together to guide the movable plate and make it stable when moving. The metal button ensures the strength of the pull head, and the anti-slip texture plays a role in preventing slippage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the bottom structure of the second connecting frame of this utility model.

[0025] Figure 3 This is a cross-sectional structural diagram of the positioning box of this utility model.

[0026] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the main body of the fire-resistant air duct of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Fire-resistant duct body; 101. Color steel layer; 102. Fireproof and flame-retardant core layer; 103. Sheet iron inner layer; 2. Connecting components; 201. First connecting frame; 202. Limiting insert frame; 203. Positioning slot; 204. Second connecting frame; 205. Limiting slot; 206. Positioning box; 207. High-damping spring; 208. Movable plate; 209. Pull rod; 210. Pull head; 211. Positioning insert rod; 212. Guide slider; 213. Guide groove. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0031] Example 1:

[0032] Please refer to Figure 1-4 A prefabricated fire-resistant duct that is easy to assemble includes a fire-resistant duct body 1. A connecting assembly 2 is provided on the surface of the fire-resistant duct body 1. The connecting assembly 2 includes a first connecting frame 201 and a second connecting frame 204. A limiting insert frame 202 is fixedly installed on the top of the first connecting frame 201. A limiting slot 205 is opened in the inner cavity of the second connecting frame 204. Positioning boxes 206 are fixedly installed around the second connecting frame 204. A high-damping spring 207 is fixedly installed on one side of the inner cavity of the positioning box 206. A movable plate 208 is fixedly installed on one end of the high-damping spring 207. A pull rod 209 is fixedly installed on one side of the movable plate 208. A pull head 210 is fixedly installed on one end of the pull rod 209. A positioning insert rod 21 is fixedly installed on the other side of the movable plate 208. 1. The first connecting frame 201 and the second connecting frame 204 are both fixedly connected to the color steel layer 101. The first connecting frame 201 and the second connecting frame 204 are both metal frames. There are four positioning boxes 206, four movable plates 208, four pull rods 209 and four pull heads 210. There are twenty-four high-damping springs 207 and eight positioning rods 211. The surface of the limiting frame 202 is provided with a positioning slot 203, and the positioning slot 203 fits with the positioning rod 211. Guide sliders 212 are fixedly installed on both sides of the movable plate 208. The inner cavity of the positioning box 206 is provided with a guide groove 213, and the guide slider 212 is slidably connected with the guide groove 213. The pull head 210 is a metal button, and the surface of the pull head 210 is provided with anti-slip texture.

[0033] In this embodiment: by setting the connecting component 2, two identical fire-resistant duct bodies 1 can be connected. By pulling the pull head 210, the positioning rod 211 can be disengaged from the positioning slot 203 in the limiting frame 202 for easy disassembly. At this time, the high-damping spring 207 is in a compressed state. When the pull head 210 is released, the high-damping spring 207 rebounds, causing the movable plate 208 and the positioning rod 211 to return to their original positions. The positioning rod 211 is then inserted into the positioning slot 203 in the limiting frame 202, thus facilitating connection. The color steel layer 101 can support the first connecting frame 201 and the second connecting frame 204. The metal frame ensures the first connecting frame 201 is connected to the second connecting frame 204. The strength of the connecting frame 201 and the second connecting frame 204, the single positioning box 206, the movable plate 208, the pull rod 209 and the pull head 210, the six high-damping springs 207 and the two positioning rods 211 form four sets of limiting structures, which can connect the two fire-resistant air duct bodies 1 around the perimeter. The positioning slot 203 fits with the positioning rod 211, which can limit the positioning rod 211 and make the positioning rod 211 stable. The guide slider 212 works with the guide groove 213 to guide the movable plate 208 and make the movable plate 208 stable when moving. The metal button ensures the strength of the pull head 210, and the anti-slip texture plays an anti-slip role.

[0034] Example 2:

[0035] Reference Figure 1 and Figure 5 The fire-resistant air duct body 1 includes a color steel layer 101, a fireproof and flame-retardant core layer 102 and an iron sheet inner layer 103. The color steel layer 101 is located on the outer surface of the fireproof and flame-retardant core layer 102, and the iron sheet inner layer 103 is located on the inner wall of the fireproof and flame-retardant core layer 102.

[0036] In this embodiment: the color steel layer 101 and the iron sheet inner layer 103 ensure the strength of the inside and outside of the fire-resistant air duct body 1, and the fireproof and flame-retardant core layer 102 ensures the fire resistance performance of the fire-resistant air duct body 1.

[0037] The implementation principle of this utility model is as follows: In use, the color steel layer 101 and the iron sheet inner layer 103 ensure the strength of the inside and outside of the fire-resistant air duct body 1, and the fireproof and flame-retardant core layer 102 ensures the fire resistance performance of the fire-resistant air duct body 1. Pulling the pull head 210 moves the pull rod 209, which in turn moves the movable plate 208. The movable plate 208 compresses the high-damping spring 207, and at the same time, the movable plate 208 moves the positioning insert 211 away from the limiting slot 205 at the bottom of the second connecting frame 204. The limiting frame 202 at the top of one fire-resistant air duct body 1 is inserted into the limiting slot 205 in the second connecting frame 204 at the bottom of the other fire-resistant air duct body 1. When the pull head 210 is released, the high-damping spring 207 rebounds and moves the movable plate 208 back to its original position. The movable plate 208 moves the positioning insert 211 into the positioning slot 203 in the limiting frame 202, thus connecting the two fire-resistant air duct bodies 1.

[0038] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A prefabricated fire-resistant duct that is easy to assemble, comprising a fire-resistant duct body (1), characterized in that: The surface of the fire-resistant duct body (1) is provided with a connecting component (2). The connecting component (2) includes a first connecting frame (201) and a second connecting frame (204). A limit insert frame (202) is fixedly installed on the top of the first connecting frame (201). A limit slot (205) is opened in the inner cavity of the second connecting frame (204). A positioning box (206) is fixedly installed on all four sides of the second connecting frame (204). A high-damping spring (207) is fixedly installed on one side of the inner cavity of the positioning box (206). A movable plate (208) is fixedly installed on one end of the high-damping spring (207). A pull rod (209) is fixedly installed on one side of the movable plate (208). A pull head (210) is fixedly installed on one end of the pull rod (209). A positioning insert rod (211) is fixedly installed on the other side of the movable plate (208).

2. The prefabricated fire-resistant duct that is easy to assemble according to claim 1, characterized in that: The fire-resistant duct body (1) includes a color steel layer (101), a fire-resistant and flame-retardant core layer (102) and an iron sheet inner layer (103). The color steel layer (101) is located on the outer surface of the fire-resistant and flame-retardant core layer (102), and the iron sheet inner layer (103) is located on the inner wall of the fire-resistant and flame-retardant core layer (102).

3. The prefabricated fire-resistant duct that is easy to assemble according to claim 1, characterized in that: The first connecting frame (201) and the second connecting frame (204) are both fixedly connected to the color steel layer (101), and both the first connecting frame (201) and the second connecting frame (204) are metal frames.

4. The prefabricated fire-resistant duct that is easy to assemble according to claim 1, characterized in that: The number of positioning boxes (206), movable plates (208), pull rods (209) and pull heads (210) are all four, the number of high-damping springs (207) is twenty-four, and the number of positioning inserts (211) is eight.

5. A prefabricated fire-resistant duct that is easy to assemble according to claim 1, characterized in that: The surface of the limiting frame (202) is provided with a positioning slot (203), and the positioning slot (203) fits with the positioning rod (211).

6. A prefabricated fire-resistant duct that is easy to assemble according to claim 1, characterized in that: Guide sliders (212) are fixedly installed on both sides of the movable plate (208), and guide grooves (213) are opened in the inner cavity of the positioning box (206), and the guide sliders (212) are slidably connected to the guide grooves (213).

7. A prefabricated fire-resistant duct that is easy to assemble according to claim 1, characterized in that: The zipper pull (210) is a metal button, and the surface of the zipper pull (210) is provided with anti-slip texture.

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