TWM542720U - Unidirectional exhaust valve device - Google Patents

Description

One-way exhaust valve device

This creation is related to the field of exhaust devices, especially a one-way exhaust valve device with high air tightness.

In order to achieve exhaust or ventilation effects, vents or exhaust pipes are reserved in the building, and the vent or exhaust pipe is controlled to be opened and closed at the tuyere or nozzle. An exhaust device is provided to control whether the airflow is turned on or not. In addition to the common ventilation or exhausting requirements, the processing industry that produces toxic exhaust gas requires the exhaust gas to effectively control the exhaust gas removal state.

The exhaust device installed in the pipeline or the vent has a tube body and a plurality of blades, and the blades are disposed inside the tube body to control the air conduction state by the relative positional relationship of the immediately adjacent or separated . When the exhaust gas or the airflow needs to be turned on, the blades may be pushed by the airflow to open the exhaust device to discharge the airflow to the outside. After the airflow is discharged, the blades are reset and their end edges are closely connected to each other to effectively suppress the airflow, which is especially important in controlling exhaust emissions. However, the exhaust device currently used has insufficient airtightness in the closed state, and the problem that the airflow is easily dissipated is how to effectively improve the sealing strength of the exhaust device, thereby preventing the leakage of the airflow. An important topic for the development of related manufacturers.

One of the purposes of this creation is to provide a one-way exhaust valve device that can have It prevents the gas from escaping from the fan blade gap in the closed state, thereby improving the overall airtight performance.

In order to achieve the above object, the one-way exhaust valve device of the present invention comprises a body and a plurality of guide vanes, and the guide vanes are sequentially disposed in the body for controlling the one-way exhaust valve device. The closed state is characterized in that: the one-way exhaust valve device further has a plurality of sealing strips, each of the guiding vanes has a mounting portion formed on one side edge, and each of the sealing strips has an engaging groove for clamping In the mounting portion, when the one-way exhaust valve device is closed, each of the sealing strips is attached to the adjacent one of the guiding vanes, thereby enhancing the airtightness of the one-way exhaust valve device. Sex.

Wherein, the thickness of each of the mounting portions is greater than the thickness of the remaining portion of the guide vane, thereby more reliably fixing each of the sealing strips.

In addition, preferably, the ratio of the thickness of each of the guide vanes to the thickness of the mounting portion is 1:5 to 1:8, so that the sealing strips have better fixing strength, and the mounting portion is provided by the mounting portion. The thickness can also determine the width of the closed strips simultaneously.

In addition, the ratio of the short side length of each of the engaging grooves to the short side length of each of the guiding vanes is between 1:4.5 and 1:7 to ensure that the one-way exhaust valve device is adjacent to each other when the one-way exhaust valve device is closed. The gap between the leaves can be completely obscured by the closed strips.

The guide vane of the one-way exhaust valve device is fixed to the body through a fixed shaft, and each of the guide vanes can be rotated by the fixed shaft to adjust the one-way exhaust valve. The switch state of the device.

Preferably, in one embodiment, the one-way exhaust valve device further has a link assembly disposed on one side of each of the fixed shafts to simultaneously interlock the guide vanes, in detail, the link assembly The utility model comprises a main rod body and a plurality of auxiliary rod bodies, wherein each of the auxiliary rod bodies is connected to the main rod body at one end, and the other ends are connected with the fixed shafts. Thereby, the main body can be driven by the auxiliary rods simultaneously Each of the fixed axes and the corresponding guide vanes achieve the purpose of synchronous movement.

In summary, the one-way exhaust valve device of the present invention utilizes the sealed rubber strips to block the gap between adjacent guide vanes when the one-way exhaust valve device is closed, preventing gas from overflowing from there. In addition, the overall airtight effect is enhanced, and the lack of insufficient sealing strength of the conventional exhaust device is effectively avoided. At the same time, the ratio of the thickness of the mounting portion to the guide vane, the length of the short side of each of the sealing strips, and the ratio of the length of the short side of each of the guiding vanes are limited, and the guiding of the different guiding vanes can be surely blocked. The sealing strip of the flow gap maintains the overall air tightness. In addition, through the arrangement of the connecting rod assembly, the synchronous interlocking state of each of the guiding vanes can be ensured.

1‧‧‧One-way exhaust valve device

10‧‧‧ Ontology

11‧‧‧Guide leaves

111‧‧‧Installation Department

12‧‧‧Closed strip

121‧‧‧ snap groove

13‧‧‧Fixed shaft

14‧‧‧ Connecting rod assembly

141‧‧‧ main body

142‧‧‧Sub-bar

a‧‧‧The thickness of the guide vane

B‧‧‧ thickness of the mounting section

L‧‧‧ short-side length of the guide vane

Short side length of M‧‧‧ snap groove

Figure 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view showing a single guide vane and a strip of a preferred embodiment of the present invention.

Figure 3 is a schematic diagram (1) of the application of the preferred embodiment of the present invention.

Figure 4 is a schematic diagram of the application of the preferred embodiment of the present invention (2).

Figure 5 is a schematic view of the application of the preferred embodiment of the present invention (3).

In order for your review board to have a clear understanding of the content of this creation, please use the following instructions to match the drawings.

Please refer to Figures 1, 2 and 3 to 5 for a schematic view of the preferred embodiment of the present invention and a schematic diagram of each application. The present invention discloses a one-way exhaust valve device 1 having a body 10 and a plurality of guide vanes 11 disposed in parallel with each other in the body 10 for controlling the one-way exhaust. The opening and closing state of the valve device 1. Depending on the one-way exhaust valve device 1 to be installed In the embodiment, the body 10 can be a circular tube or a square tube. In this embodiment, a square tube is taken as an example for illustration. Wherein, each of the guide vanes 11 is disposed adjacent to each other to achieve a function as a retaining wall to block the air flow. When each of the guide vanes 11 is inclined, a channel is formed between the guide vanes 11 to be provided. The air flow is passed, and the opening and closing state of the one-way exhaust valve device 1 can be controlled by changing the arrangement type of the guide vanes 11 as described above, and the one-way exhaust valve device 1 can be pushed or assisted by the air flow. The guide vanes 11 are controlled by a drive unit.

The one-way venting valve device 1 is characterized in that it has a plurality of sealing strips 12, and each of the guiding vanes 11 has a mounting portion 111 formed on one side edge thereof, and each of the sealing strips 12 has an engaging groove 121 for The sealing strip 12 is attached to the adjacent one of the guiding vanes 11 when the one-way exhaust valve device 1 is closed, thereby lifting the one-way. The airtightness of the exhaust valve device 1. Through the arrangement of the sealing strips 12, when the guiding vanes 11 are disposed adjacent to each other to close the one-way exhaust valve device 1, each of the sealing strips 12 will be covered by another adjacent guide. The surface of one of the flow vanes 11 causes the one-way exhaust valve device 1 to reliably block the small gaps in the immediate vicinity of the guide vanes 11 through the sealed rubber strips 12, thereby improving the overall airtightness. In addition, the sealing strips 12 can also provide a closing force of the guiding vanes 11 when the one-way exhaust valve device 1 is closed, and the guiding vanes 11 are pulled by the weight of the sealing strips 12, In order to more reliably switch each of the guide vanes 11 from the tilted setting to the immediately adjacent aspect.

In order to make the assembly of each of the sealing strips 12 and the mounting portions 111 more compact, the thickness of each of the mounting portions 111 is greater than the thickness of the remaining portion of the guiding vanes 11. Therefore, when each of the sealing strips 12 is mounted on each of the mounting portions 111, the two sides of the engaging grooves 121 are in close contact with the mounting portion 111 by the elasticity of the sealing strips 12 themselves. The limiting effect of preventing the sealing strips 12 from falling off can be achieved by the mounting portion 111 having a relatively large thickness. Preferably, The ratio of the thickness a of each of the guide vanes 11 to the thickness b of the mounting portion 111 is 1:5 to 1:8, whereby the sealing strips 12 can have better fixing strength. When the thickness b of the mounting portion 111 is larger, the width of each of the engaging grooves 121 is increased, and the overall width of the sealing strip 12 is also increased. Therefore, the width of the sealing strip 12 is prevented from being too narrow. The other guiding vane 11 is smoothly attached, and the width of the sealing strip 12 is prevented from being too large to affect the blocking performance, so that the thickness ratio of each of the guiding vanes 11 and the corresponding mounting portion 111 is in the above range. As shown in Figure 2.

In order to prevent the sealing strips 12 from blocking the one-way exhaust valve device 1 in the closed state, the gap between the guide vanes 11 and the short sides M of each of the engaging grooves 121 and each The length L of the short side of the guide vane 11 is between 1:4.5 and 1:7 to ensure that the gap between the adjacent guide vanes 11 can be completely received when the one-way exhaust valve device 1 is closed. The sealing strip 12 is shielded to prevent the length of the short side of each of the sealing strips 12 from being too short to be effectively attached to the other guiding vane 11 or the length of each short side of the sealing strip 12 is too large to affect each of the guiding strips The movement of the flow vane 11 is as shown in Fig. 2. In the present embodiment, the ratio of the short side length M of the engaging groove 121 to the short side length L of each of the guiding vanes 11 is 1:5.

Preferably, each of the guide vanes 11 is mounted in the body 10 through a fixed shaft 13. Further, in order to enable the guide vanes 11 to be simultaneously linked, the one-way exhaust valve device 1 is further provided on One of the link assemblies 14 on one side of the fixed shaft 13 is configured to allow each of the guide vanes 11 to be simultaneously driven by the link assembly 14. In the embodiment, the connecting rod assembly 14 includes a main rod body 141 and a plurality of sub-rod bodies 142. One end of each of the sub-rod bodies 142 is connected to the main rod body 141, and the other end is connected to each of the fixed shafts 13. Therefore, when the main rod body 141 is moved, the sub-rod bodies 142 and the fixed shafts 13 connected to the sub-rod bodies 142 can be simultaneously connected, thereby driving the corresponding guide vanes 11 .

As shown in FIGS. 3 to 5, when the one-way exhaust valve device 1 is opened, each of the guide vanes 11 is obliquely disposed and separated from each other to allow airflow to pass through a passage formed by the gap thereof, wherein in the embodiment The equal guide vane 11 is opened by the airflow thrust to open the one-way exhaust valve device 1. After the gas is discharged, the connecting rod assembly 14 can be manually driven, and the fixed shaft 13 and the guiding vanes 11 are driven by the main rod 141 and the auxiliary rods 142 to make the guides 11 The flow vane 11 closes the one-way exhaust valve device 1, and each of the sealing strips 12 is attached to the top of the adjacent one of the guide vanes 11 to block the adjacent guide vanes 11 The gap prevents the airflow from escaping from there, thereby improving the overall airtightness. In addition to manually closing the guide vanes 11, it is also possible to close the guide vanes 11 by the weight of the guide vanes 11 themselves and the seal strips 12 when the airflow is weakened. .

In summary, the one-way venting valve device 1 of the present invention can effectively prevent the airflow from overflowing from the gaps of the guiding vanes 11 by the sealing strips 12 when the sealing strips 12 are disposed. Overall airtight performance. And the ratio of the length of the short sides of the sealing strips 12 to the guiding vanes 11 and the thickness ratio of the guiding vanes 11 and the mounting portions 111 are such that the sealing strips 12 can be surely The shielding between the adjacent guide vanes 11 reduces the possibility of airflow in the closed state, thereby improving the lack of conventional exhaust devices.

However, the above descriptions are only for the preferred embodiment of the present invention and are not intended to limit the scope of the present invention; therefore, the equivalent changes and modifications made without departing from the spirit and scope of the present invention should be Within the scope of this creation's patent.

1‧‧‧One-way exhaust valve device

10‧‧‧ Ontology

11‧‧‧Guide leaves

111‧‧‧Installation Department

12‧‧‧Closed strip

121‧‧‧ snap groove

13‧‧‧Fixed shaft

14‧‧‧ Connecting rod assembly

141‧‧‧ main body

142‧‧‧Sub-bar

Claims (7)

A unidirectional exhaust valve device includes a body and a plurality of guide vanes, and the guide vanes are sequentially disposed in the body to control an opening and closing state of the one-way exhaust valve device, wherein: The one-way venting valve device further has a plurality of sealing strips, each of the guiding vanes forming a mounting portion on one side edge, each of the sealing strips having an engaging groove for being attached to the mounting portion Therefore, when the one-way exhaust valve device is closed, each of the sealing rubber strips is attached to the adjacent one of the guide vanes, thereby improving the airtightness of the one-way exhaust valve device. The one-way exhaust valve device of claim 1, wherein each of the mounting portions has a thickness greater than a thickness of a remaining portion of the guide vane. The one-way exhaust valve device according to claim 2, wherein a thickness ratio of each of the guide vanes to the mounting portion is 1:5 to 1:8. The one-way exhaust valve device according to claim 1, wherein a ratio of a short side length of each of the engaging grooves to a short side length of each of the guide vanes is between 1:4.5 and 1:7. The one-way exhaust valve device of claim 1 or 2 or 3 or 4, wherein each of the guide vanes is fixed to the body through a fixed shaft. The one-way exhaust valve device according to claim 5, further comprising a connecting rod assembly disposed on one side of each of the fixed shafts for simultaneously interlocking the guide vanes. The one-way exhaust valve device according to claim 6, wherein the connecting rod assembly comprises a main rod body and a plurality of sub-rod bodies, one end of each of the sub-rod bodies is connected to the main rod body, and the other end is connected to the main rod body Then connected to each of the fixed shafts.