Small air inlet valve capable of achieving stepless adjustment of air inlet flow and using method of small air inlet valve

Abstract

The invention discloses a small air inlet valve capable of achieving stepless adjustment of air inlet flow and a using method of the small air inlet valve. An air inlet channel and an air outlet channel which are connected are formed in a valve body, and air inlet holes communicating with the air inlet channel are evenly distributed in the outer portion of the valve body; the flow control assembly comprises a flow control sleeve arranged on the valve body in a sleeving mode, a drum-shaped connector matched with a sealing ring to seal and cover the flow control sleeve, an end cover installed at the end of the air inlet channel in a blocking mode and limiting the drum-shaped connector, and an air inlet pipe arranged on the drum-shaped connector, and through holes corresponding to the air inlet holes are distributed in the flow control sleeve. When the flow control sleeve rotates to adjust the position of the through hole, each air inlet hole can be steplessly adjusted; the one-way on-off assembly comprises an ejector rod installed in the air outlet channel in a sliding mode, a plug installed at the end of the ejector rod and a spring which is arranged on the ejector rod in a sleeving mode and acts on the plug. At the beginning, the spring enables the plug to keep the air inlet channel and the air outlet channel to be separated. The air inlet valve can adjust the air inlet flow in a stepless mode.

Description

Technical Field

[0001] This invention relates to intake valves, specifically to a small intake valve with stepless adjustment of intake flow rate and its usage method. Background Technology

[0002] Large airbag products often have multiple cavities or multiple airbags, which presents the problem of difficulty in controlling the pressure of multiple cavities or multiple airbags in a single airbag. Currently, pressure control is generally achieved by controlling the length and diameter of the air supply pipe and the air inlet / outlet area of ​​the diverter. However, it is difficult to adjust the length and diameter of the air supply pipe when the installation space is limited, and adjusting the air inlet / outlet area of ​​the diverter cannot solve the pressure control problem of multiple cavities in a single airbag. Summary of the Invention

[0003] The purpose of this invention is to provide a small intake valve with stepless adjustment of intake flow and its usage method. The intake valve can steplessly adjust the intake flow and is suitable for installation on the interface of airbag products.

[0004] The technical solution adopted in this invention is: A small intake valve with stepless intake flow regulation includes a valve body. The valve body has an internal intake channel and an external outlet channel connected together, and intake holes communicating with the intake channel are evenly distributed around its center on the outside. A flow control assembly and a one-way on / off assembly are mounted on the valve body. The flow control assembly includes a flow control sleeve fitted onto the valve body, sealing rings located around both ends of the flow control sleeve, a drum-shaped connector that seals the flow control sleeve in conjunction with the sealing rings, an end cap installed at the end of the intake channel and axially limiting the drum-shaped connector, and an intake pipe located on the drum-shaped connector, the end of which is... The air intake interface has through holes distributed on the flow control sleeve corresponding to each air intake hole. When the flow control sleeve is rotated to adjust the position of the through holes, each air intake hole can be infinitely adjusted from completely closed to completely open. The one-way switching component includes a push rod that is slidably installed in the air outlet channel, a plug installed at the end of the push rod, and a spring that is sleeved on the push rod and acts on the plug. Initially, the spring keeps the plug in place to isolate the air intake channel and the air outlet channel. When the air pressure in the air intake channel exceeds the opening value, it can overcome the spring force and open the air intake channel and the air outlet channel. The end of the air outlet channel is the air outlet interface.

[0005] Preferably, the main body of the flow control sleeve is a rubber sleeve, and the two ends of the rubber sleeve are provided with metal reinforcing rings, which fit into the mounting groove of the valve body.

[0006] Preferably, the metal reinforcing ring is clamped onto the rubber sleeve from the end face and the inner and outer surfaces and then bonded and fixed.

[0007] Preferably, the one-way switching assembly further includes an opening value adjusting component, which is threadedly and adjustablely mounted on the valve body. A push rod is slidably mounted on the opening value adjusting component, and a spring is pressed between the opening value adjusting component and the plug. The initial spring force can be adjusted by adjusting the screwing position of the opening value adjusting component.

[0008] Preferably, the opening value adjustment component has an operating handle at its tail.

[0009] Preferably, the end face of the plug is flat around the perimeter and has a conical protrusion in the center. Initially, the flat perimeter is pressed against the inner end face of the air outlet channel, and the conical protrusion in the center extends into the air intake channel.

[0010] Preferably, both the air inlet and the through hole are round holes.

[0011] Preferably, the plug is made of rubber.

[0012] Preferably, the sealing ring is an O-ring.

[0013] The above-mentioned small intake valve with stepless intake flow adjustment is used when the pressure of multiple cavities of a single airbag or multiple airbags needs to be adjusted. The intake valve is installed at each intake node. Before installation, the opening of the intake port of the corresponding intake node is calculated according to the required pressure. Then, the flow control sleeve is rotated to make the intake port of the corresponding intake node reach the required opening. Then, the drum-shaped connector and intake pipe are installed. Then, the end cap is installed to limit the drum-shaped connector to obtain the adjusted intake valve. During installation, the intake port and outlet port of the intake valve are connected to the air circuit respectively.

[0014] The beneficial effects of this invention are: After entering the air inlet, the gas passes through the air inlet pipe, the drum-shaped connector, the through hole on the flow control sleeve, and the air inlet hole in sequence into the air inlet channel. Since the position of the flow control sleeve can be infinitely adjusted to adjust the size of the air inlet hole, the air inlet flow can also be infinitely adjusted. When the air pressure in the air inlet channel exceeds the opening value, the gas overcomes the spring force to connect the air inlet channel and the air outlet channel. The gas flows out through the air outlet channel and from the air outlet. This air inlet valve has a compact structure and is suitable for installation on the interface of airbag products. It can directly realize the air inlet flow control of multiple cavities or multiple airbags. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a small intake valve with stepless adjustment of intake flow rate in this invention.

[0016] Figure 2 yes Figure 1 A schematic diagram showing the removal of the drum-shaped connector and its intake pipe.

[0017] Figure 3 yes Figure 2The cross-sectional diagram shows that a) is the closed state of the one-way switching component and b) is the open state of the one-way switching component.

[0018] In the picture: 100 - Valve body; 101 - Inlet passage; 102 - Outlet passage; 103 - Inlet port; 104 - Outlet port; 210 - Flow control sleeve; 211 - Through hole; 212 - Rubber sleeve; 213 - Metal reinforcing ring; 220 - Sealing ring; 230 - Drum-shaped connector; 240 - End cap; 250 - Inlet pipe; 251 - Inlet interface; 310-Push rod; 320-Plug; 330-Spring; 340-Opening value adjustment component; 341-Operating handle. Detailed Implementation

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

[0020] This embodiment discloses a small intake valve with stepless adjustment of intake flow rate, such as... Figures 1 to 3 As shown, it includes a valve body 100, a flow control assembly, and a one-way on / off assembly; as Figure 2 and Figure 3 As shown, the valve body 100 has an internally connected air intake channel 101 and an air outlet channel 102, and externally, air intake holes 103, which communicate with the air intake channel 101, are evenly distributed around the center; as shown... Figures 1 to 3 As shown, the flow control assembly is installed on the valve body 100. The flow control assembly includes a flow control sleeve 210, a sealing ring 220, a drum-shaped connector 230, an end cap 240, and an air inlet pipe 250. The flow control sleeve 210 is fitted onto the valve body 100. The sealing ring 220 is located around both ends of the flow control sleeve 210. The drum-shaped connector 230 cooperates with the sealing ring 220 to seal and cover the flow control sleeve 210. The end cap 240 is installed at the end of the air inlet channel 101 and axially limits the drum-shaped connector 230. The air inlet pipe 250 is located on the drum-shaped connector 230. The end of the air inlet pipe 250 is an air inlet interface 251. The flow control sleeve 210 has through holes 211 corresponding to each air inlet 103. When the flow control sleeve 210 is rotated to adjust the position of the through holes 211, each air inlet 103 can be infinitely adjusted from completely closed to completely open. Figures 1 to 3As shown, a one-way switching assembly is installed on the valve body 100. The one-way switching assembly includes a push rod 310, a plug 320, and a spring 330. The push rod 310 is slidably installed in the air outlet channel 102. The plug 320 is installed at the end of the push rod 310. The spring 330 is sleeved on the push rod 310 and acts on the plug 320. Initially, the spring 330 keeps the plug 320 in place, separating the air inlet channel 101 and the air outlet channel 102. When the air pressure in the air inlet channel 101 exceeds the opening value, it can overcome the spring force 330 and open the air inlet channel 101 and the air outlet channel 102. The end of the air outlet channel 102 is the air outlet port 104.

[0021] After entering the air inlet 251, the gas passes through the air inlet pipe 250, the drum-shaped connector 230, the through hole 211 on the flow control sleeve 210, and the air inlet hole 103 in sequence before entering the air inlet channel 101. Since the position of the flow control sleeve 210 can be infinitely adjusted to adjust the size of the air inlet, the air inlet flow can also be infinitely adjusted. When the air pressure in the air inlet channel 101 exceeds the opening value, the gas overcomes the force of the spring 330 to connect the air inlet channel 101 and the air outlet channel 102. The gas flows out through the air outlet channel 102 and from the air outlet 104. This air inlet valve has a compact structure and is suitable for installation on the interface of airbag products. It can directly realize the air inlet flow control of multiple cavities or multiple airbags.

[0022] The above-mentioned small intake valve with stepless intake flow regulation is used as follows: When the pressure of multiple cavities in a single airbag or multiple airbags needs to be adjusted, the air intake valve is installed at each air intake node. Before installation, the opening of the air intake hole of the corresponding air intake node is calculated according to the required pressure. Then, the flow control sleeve 210 is rotated to make the air intake hole 103 of the corresponding air intake node reach the required opening. Then, the drum-shaped connector 230 and the air intake pipe 250 are installed. Then, the end cap 240 is installed to limit the drum-shaped connector 230, and the adjusted air intake valve is obtained. During installation, the air intake port 251 and the air outlet port 104 of the air intake valve are respectively connected to the air circuit.

[0023] In this embodiment, preferably, as follows: Figure 3 As shown, the main body of the flow control sleeve 210 is a rubber sleeve 212. Metal reinforcing rings 213 are provided at both ends of the rubber sleeve 212. The metal reinforcing rings 213 fit into the mounting groove of the valve body 100. The metal reinforcing rings 213 ensure assembly accuracy and extend service life. Furthermore, the metal reinforcing rings 213 are secured to the rubber sleeve 212 from both the end face and the inner and outer surfaces, ensuring a stable and reliable connection.

[0024] In this embodiment, preferably, as follows: Figures 1 to 3As shown, the one-way switching assembly also includes an opening value adjusting component 340. The opening value adjusting component 340 is threadedly and adjustablely mounted on the valve body 100. The push rod 310 is slidably mounted on the opening value adjusting component 340. The spring 330 rests between the opening value adjusting component 340 and the plug 320. By adjusting the screwing position of the opening value adjusting component 340, the initial force of the spring 330 can be adjusted, thereby adjusting the air pressure of the one-way switching assembly. Furthermore, an operating handle 341 is provided at the tail of the opening value adjusting component 340 for convenient operation.

[0025] In this embodiment, preferably, as follows: Figure 2 As shown, the end face of the plug 320 is flat around the perimeter and has a conical protrusion in the center. Initially, the flat perimeter is pressed against the inner end face of the air outlet channel 102, and the conical protrusion in the center extends into the air inlet channel 101, which can optimize the air field and make the airflow more stable.

[0026] In this embodiment, preferably, as follows: Figure 2 As shown, both the air inlet 103 and the through hole 211 are round holes.

[0027] In this embodiment, preferably, the plug 320 is made of rubber.

[0028] In this embodiment, preferably, the sealing ring 220 is an O-ring.

[0029] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A small intake valve with stepless intake flow rate adjustment, characterized in that: The valve body includes an internally connected air inlet and outlet channel, and externally distributed air inlets communicating with the air inlet channel around its center. A flow control assembly and a one-way shut-off assembly are mounted on the valve body. The flow control assembly includes a flow control sleeve fitted onto the valve body, sealing rings located around both ends of the flow control sleeve, a drum-shaped connector that seals the flow control sleeve in conjunction with the sealing rings, an end cap installed at the end of the air inlet channel and axially limiting the drum-shaped connector, and an air inlet pipe located on the drum-shaped connector, with the end of the air inlet pipe serving as the air inlet interface. The sleeve has through holes corresponding to each air inlet. When the flow control sleeve is rotated to adjust the position of the through holes, each air inlet can be infinitely adjusted from completely closed to completely open. The one-way switch assembly includes a push rod that can be slidably installed in the air outlet channel, a plug installed at the end of the push rod, and a spring that is sleeved on the push rod and acts on the plug. Initially, the spring keeps the plug in place to isolate the air inlet channel and the air outlet channel. When the air pressure in the air inlet channel exceeds the opening value, it can overcome the spring force to open the air inlet channel and the air outlet channel. The end of the air outlet channel is the air outlet interface.

2. The miniature intake valve with stepless intake flow rate adjustment as described in claim 1, characterized in that: The main body of the flow control sleeve is a rubber sleeve, and metal reinforcing rings are provided at both ends of the rubber sleeve. The metal reinforcing rings fit into the mounting groove of the valve body.

3. The miniature intake valve with stepless intake flow rate adjustment as described in claim 2, characterized in that: The metal reinforcing ring is clamped onto the rubber sleeve from both the end face and the inner and outer surfaces and then bonded in place.

4. The miniature intake valve with stepless intake flow rate adjustment as described in claim 1, characterized in that: The one-way switching assembly also includes an opening value adjustment component, which is threadedly and adjustablely mounted on the valve body. A push rod is slidably mounted on the opening value adjustment component, and a spring is pressed between the opening value adjustment component and the plug. The initial spring force can be adjusted by adjusting the screwing position of the opening value adjustment component.

5. The miniature intake valve with stepless intake flow rate adjustment as described in claim 4, characterized in that: An operating handle is provided at the rear of the opening value adjustment component.

6. The miniature intake valve with stepless intake flow rate adjustment as described in claim 1, characterized in that: The end face of the plug is flat around the perimeter and has a conical protrusion in the center. Initially, the flat perimeter is pressed against the inner end face of the air outlet channel, and the conical protrusion in the center extends into the air intake channel.

7. The miniature intake valve with stepless intake flow rate adjustment as described in claim 1, characterized in that: Both the air inlet and the through hole are round holes.

8. The miniature intake valve with stepless intake flow rate adjustment as described in claim 1, characterized in that: The plug is made of rubber.

9. The miniature intake valve with stepless intake flow rate adjustment as described in claim 1, characterized in that: The sealing ring is an O-ring.

10. A method of using a small intake valve with stepless intake flow rate adjustment as described in any one of claims 1 to 9, characterized in that: When the pressure of multiple cavities in a single airbag or multiple airbags needs to be adjusted, the air intake valve is installed at each air intake node. Before installation, the opening of the air intake hole of the corresponding air intake node is calculated according to the required pressure. Then, the flow control sleeve is rotated to make the air intake hole of the corresponding air intake node reach the required opening. Then, the drum-shaped connector and the air intake pipe are installed. Then, the end cap is installed to limit the drum-shaped connector to obtain the adjusted air intake valve. During installation, the air intake interface and the air outlet interface of the air intake valve are connected to the air circuit respectively.

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