Ventilation pipe with good anti-bending effect

Abstract

The utility model provides a ventilation pipe with good anti-bending effect, which comprises a bent ventilation pipe structure, the bent ventilation pipe structure comprises a corrugated pipe, an auxiliary frame and a positioning shaft, two sides of the corrugated pipe are provided with flow guide bins, the outer wall of each flow guide bin is provided with a positioning strip, an auxiliary groove is arranged in the flow guide bin on one side of the corrugated pipe, and the positioning strip is arranged in the auxiliary groove. A sealing baffle is slidably connected to the interior of the auxiliary groove, and a flow dividing groove is formed in the sealing baffle. The corrugated pipe is used for connecting the two linear ventilation pipe structures, meanwhile, the corrugated pipe has certain elasticity, so that the corrugated pipe is connected to the bent position between the two linear ventilation pipes, and the filtering baffle is arranged on one side of the corrugated pipe so that gas entering the corrugated pipe can be filtered; and meanwhile, the filtering baffle is rotated by 180 degrees, and the sealing baffle is inserted into the flow guide bin, so that dust attached to the surface of the filtering baffle can be discharged through gas, and the dust is prevented from being accumulated at the bent position of the ventilation pipe.

Description

Technical Field

[0001] This utility model belongs to the field of ventilation pipe technology, specifically relating to a ventilation pipe with good bending resistance. Background Technology

[0002] With the rapid development of modern buildings, industrial facilities and rail transit, ventilation duct systems, as the core carriers of air circulation and environmental regulation, are receiving increasing attention for their safety and stability.

[0003] Ventilation ducts need to bend at certain points, but because of this curvature, dust in the air is trapped at the bend, causing it to accumulate inside the duct and affecting airflow. Utility Model Content

[0004] Purpose of utility model

[0005] To address the aforementioned technical problems, this utility model provides a ventilation pipe with good bending resistance, thereby solving the technical problems mentioned in the background art.

[0006] Technical solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is a ventilation pipe with good bending resistance, including a straight ventilation pipe structure, wherein the number of the straight ventilation pipe structures is set to two, and a bent ventilation pipe structure is provided between the two straight ventilation pipe structures;

[0008] A bent ventilation duct structure includes a corrugated pipe, an auxiliary frame, and a positioning shaft. Two flow guide chambers are provided on both sides of the corrugated pipe, and positioning strips are provided on the outer walls of the flow guide chambers. An auxiliary groove is formed inside the flow guide chamber on one side of the corrugated pipe, and a sealing baffle is slidably connected inside the auxiliary groove. A flow divider groove is formed inside the sealing baffle, and an air outlet groove is formed on one side of the sealing baffle, connecting the air outlet groove to the flow divider groove. A positioning ring is provided inside the flow guide chamber on the other side of the corrugated pipe, and a filter baffle is provided inside the positioning ring. A rotating shaft is provided on one side of the filter baffle, and the rotating shaft is rotatably connected to the flow guide chamber.

[0009] Preferably, the straight ventilation duct structure includes a straight ventilation duct body, a side plate is provided on one side of the straight ventilation duct body, a connecting groove is provided inside the side plate, and a pin hole is provided inside the side plate.

[0010] Preferably, the positioning strip engages with the connecting groove, and a pin is provided between the positioning strip and the connecting groove.

[0011] Preferably, the bottom of the auxiliary frame is provided with a connecting ring, which is connected to the flow guide chamber, and the top of the auxiliary frame is provided with a horizontal plate, a groove is provided on one side of the horizontal plate, and a positioning hole is provided on one side of the horizontal plate.

[0012] Preferably, an auxiliary hole is provided on the outer wall of the bottom of the positioning shaft, the positioning shaft is slidably connected to the groove, and a pin body is provided between the auxiliary hole and the positioning hole.

[0013] Beneficial effects

[0014] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0015] This invention uses a corrugated pipe to connect two straight ventilation ducts. The corrugated pipe has a certain degree of elasticity, allowing it to be connected at the bend between the two straight ventilation ducts. A filter baffle is installed on one side of the corrugated pipe to filter the gas entering the corrugated pipe. By rotating the filter baffle 180° and inserting a sealing baffle into the flow guide chamber, the gas can expel dust adhering to the surface of the filter baffle, preventing dust from accumulating at the bend of the ventilation duct. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a three-dimensional view of the straight ventilation duct structure of this utility model;

[0018] Figure 3 This is a three-dimensional cross-sectional view of the bent ventilation pipe structure of this utility model.

[0019] Figure Labels

[0020] 1. Straight ventilation duct structure; 101. Straight ventilation duct body; 102. Side plate; 103. Connecting groove; 104. Pin hole; 2. Bent ventilation duct structure; 201. Corrugated pipe; 202. Flow guide chamber; 203. Positioning strip; 204. Auxiliary groove; 205. Sealing baffle; 206. Diversion groove; 207. Air outlet groove; 208. Positioning ring; 209. Filter baffle; 210. Rotating shaft; 211. Auxiliary frame; 212. Connecting ring; 213. Horizontal plate; 214. Positioning hole; 215. Positioning shaft; 216. Auxiliary hole; 217. Pin body. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "other end", "one side", "front", "both ends", "both sides", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Referring now to the accompanying drawings, the various figures are intended only to illustrate certain exemplary embodiments and are not intended to limit the scope of the invention. In the various figures, the same reference numerals denote the same or corresponding parts. The dimensions and scales in the various figures are also for illustrative purposes only and should not be construed as limiting the scope of the invention; these dimensions may be enlarged relative to actual products.

[0025] Reference Figure 1-3 The ventilation pipe shown has good bending resistance, including a straight ventilation pipe structure 1, the number of which is set to two, and a bent ventilation pipe structure 2 is provided between the two straight ventilation pipe structures 1;

[0026] The bent ventilation duct structure 2 includes a corrugated pipe 201, an auxiliary frame 211, and a positioning shaft 215. Two flow guide chambers 202 are provided on both sides of the corrugated pipe 201. Positioning strips 203 are provided on the outer walls of the flow guide chambers 202. An auxiliary groove 204 is formed inside the flow guide chamber 202 on one side of the corrugated pipe 201. A sealing baffle 205 is slidably connected inside the auxiliary groove 204. A flow divider groove 206 is formed inside the sealing baffle 205. An air outlet groove 207 is formed on one side of the sealing baffle 205 and is connected to the flow divider groove 206. A positioning ring 208 is provided inside the flow guide chamber 202 on the other side of the corrugated pipe 201. A filter baffle 209 is provided inside the positioning ring 208. A rotating shaft 210 is provided on one side of the filter baffle 209 and is rotatably connected to the flow guide chamber 202. The positioning strips 203 are engaged with the connecting groove 103. The positioning strip 203 is connected to the connecting groove 103 by a pin. The bottom of the auxiliary frame 211 is provided with a connecting ring 212, which is connected to the flow guide chamber 202. The top of the auxiliary frame 211 is provided with a horizontal plate 213, one side of which is provided with a groove. A positioning hole 214 is provided on one side of the horizontal plate 213. An auxiliary hole 216 is provided on the outer wall of the bottom of the positioning shaft 215. The positioning shaft 215 is slidably connected to the groove. A pin body 217 is provided between the auxiliary hole 216 and the positioning hole 214 to connect the positioning shaft 215 to the wall. Then, the horizontal plate 213 is rotated, which drives the flow guide chamber 202 to rotate. The flow guide chamber 202 drives the bellows 201 to rotate. Then, the positioning strip 203 is inserted into the connecting groove 103 for fixation. Then, the pin is inserted into the pin hole 104 and the positioning strip 203.

[0027] Then, the horizontal plate 213 is inserted between the auxiliary hole 216 and the positioning hole 214 to fix the horizontal plate 213. Then, the gas enters the interior of the bellows 201 through the straight ventilation pipe body 101 and passes through the filter baffle 209. The filter baffle 209 needs to be rotated 180° periodically by the rotating shaft 210. Then, the sealing baffle 205 is inserted into the groove on one side of the positioning strip 203, so that the gas flow carries the dust behind the filter baffle 209 and enters the interior of the diversion groove 206. Then, the dust and gas are discharged through the air outlet groove 207. After that, the sealing baffle 205 is removed to seal the groove.

[0028] Furthermore, in the above technical solution, the straight ventilation duct structure 1 includes a straight ventilation duct body 101, a side plate 102 is provided on one side of the straight ventilation duct body 101, a connecting groove 103 is provided inside the side plate 102, and a pin hole 104 is provided inside the side plate 102. When it is necessary to install the straight ventilation duct body 101, a bent ventilation duct structure 2 needs to be installed between the two straight ventilation duct bodies 101 for installing the straight ventilation duct bodies 101 in different directions.

[0029] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A ventilation duct with good bending resistance, characterized in that, include A straight ventilation duct structure (1) is provided, and the number of the straight ventilation duct structures (1) is set to two, with a bent ventilation duct structure (2) provided between the two straight ventilation duct structures (1); The bent ventilation duct structure (2) includes a corrugated pipe (201), an auxiliary frame (211), and a positioning shaft (215). A flow guide chamber (202) is provided on both sides of the corrugated pipe (201). A positioning strip (203) is provided on the outer wall of the flow guide chamber (202). An auxiliary groove (204) is opened inside the flow guide chamber (202) on one side of the corrugated pipe (201). A sealing baffle (205) is slidably connected inside the auxiliary groove (204). The sealing baffle (205) has an opening inside... There is a diversion groove (206), and an air outlet groove (207) is provided on one side of the sealing baffle (205). The air outlet groove (207) is connected to the diversion groove (206). A positioning ring (208) is provided inside the flow guide chamber (202) on the other side of the corrugated pipe (201). A filter baffle (209) is provided inside the positioning ring (208). A rotating shaft (210) is provided on one side of the filter baffle (209). The rotating shaft (210) is rotatably connected to the flow guide chamber (202).

2. The ventilation duct with good bending resistance according to claim 1, characterized in that: The straight ventilation duct structure (1) includes a straight ventilation duct body (101), a side plate (102) is provided on one side of the straight ventilation duct body (101), a connecting groove (103) is provided inside the side plate (102), and a pin hole (104) is provided inside the side plate (102).

3. The ventilation duct with good bending resistance according to claim 1, characterized in that: The positioning strip (203) engages with the connecting groove (103), and a pin is provided between the positioning strip (203) and the connecting groove (103).

4. The ventilation duct with good bending resistance according to claim 1, characterized in that: The bottom of the auxiliary frame (211) is provided with a connecting ring (212), which is connected to the flow guide chamber (202). The top of the auxiliary frame (211) is provided with a horizontal plate (213), a groove is provided on one side of the horizontal plate (213), and a positioning hole (214) is opened on one side of the horizontal plate (213).

5. A ventilation duct with good bending resistance according to claim 1, characterized in that: An auxiliary hole (216) is provided on the outer wall of the bottom of the positioning shaft (215). The positioning shaft (215) is slidably connected to the groove. A pin body (217) is provided between the auxiliary hole (216) and the positioning hole (214).

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