Civil aviation oxygen supply system shunt valve and mask hose assembly device and method

Abstract

The application provides a civil aviation oxygen supply system shunt valve and mask hose assembly device and method, the assembly device comprises an oxygen generator fixing module, a shunt valve adjusting module, a hose clamping module and a driving module; the oxygen generator fixing module is used for fixing the oxygen generator, and the shunt valve is arranged on the side of the oxygen generator; the shunt valve adjusting module is used for rotating the shunt valve along the circumference of the oxygen generator, so that the shunt head of the shunt valve is horizontal and is located at the same height as the hose clamping module; the hose clamping module is used for clamping the mask hose, and the driving module is used for driving the hose clamping module to drive the mask hose to be connected and installed with the shunt head. The application can improve the assembly efficiency and precision.

Description

Technical Field

[0001] This invention relates to the field of airborne life-saving equipment technology, specifically to an assembly device and method for a diversion valve and mask hose in a civil aviation oxygen supply system. Background Technology

[0002] Aircraft passenger oxygen supply systems are located above passengers' heads in the aircraft cabin. In emergencies, they provide emergency oxygen to passengers and crew, making them an essential emergency life-saving device. A typical passenger oxygen supply system consists of an oxygen generator, a distribution valve, an electromagnetic latch, a control panel, and several passenger oxygen masks. The number of passenger oxygen masks is determined by the number of users of the system. During operation, the oxygen generated by the oxygen generator is evenly distributed to each passenger oxygen mask through the distribution valve, providing emergency oxygen to passengers and crew.

[0003] According to relevant standards, the mask hose and diverter valve, once assembled, must withstand a tensile force of 89N and must not detach. The mask hose is made of elastic material, and during assembly with the diverter valve, external force is used to insert the diverter valve's shunt head into the hose. Currently, the assembly of the diverter valve and passenger oxygen mask hose is mostly done manually. To ensure the tensile strength after assembly, the friction between the mask hose and the diverter valve is very high, resulting in low efficiency for manual assembly. Furthermore, the inconsistent insertion depth during manual operation affects the tensile strength of the assembly and the flow resistance of the hose. Summary of the Invention

[0004] In view of this, the present invention provides an assembly device and method for a diversion valve and mask hose in a civil aviation oxygen supply system, which can improve assembly efficiency and accuracy.

[0005] The technical solution adopted in this invention is as follows: An assembly device for a diversion valve and mask hose in a civil aviation oxygen supply system includes an oxygen generator fixing module, a diversion valve adjusting module, a hose clamping module, and a drive module. The oxygen generator fixing module is used to fix the oxygen generator, and the diversion valve is located on the side of the oxygen generator; the diversion valve adjusting module is used to drive the diversion valve to rotate around the oxygen generator, so that the diversion head of the diversion valve is horizontal and at the same height as the hose clamping module; the hose clamping module is used to clamp the mask hose, and the drive module is used to drive the hose clamping module to drive the mask hose to connect and install with the diversion head.

[0006] Furthermore, the oxygen generator fixing module includes an oxygen generator mounting base, a pin, a compression spring, and a fixing base; The oxygen generator mounting base is provided with a semi-circular or V-shaped positioning port for fixing the oxygen generator; the fixing base is located below the bottom of the oxygen generator mounting base, and the pin passes through the pin hole at the bottom of the oxygen generator mounting base and the pin hole at the top of the fixing base to connect the oxygen generator mounting base and the fixing base; the compression spring is sleeved on the outside of the pin, with its upper end contacting the bottom of the oxygen generator mounting base and its lower end contacting the upper part of the fixing base, and the positioning height of the diversion valve can be adjusted by pressing the compression spring; the fixing base is used to support the oxygen generator fixing module and the oxygen generator.

[0007] Furthermore, the diversion valve adjustment module includes a diversion valve clamping plate and an oxygen generator height adjustment seat; The diversion valve clamping plate is provided with a positioning groove adapted to the shape of the diversion valve; a positioning surface I is provided on one side of the diversion valve clamping plate according to the number and angle of the diversion head, and the positioning surface I is in contact with the positioning surface II of the oxygen generator height adjustment seat to ensure that the corresponding diversion head is kept horizontal. The oxygen generator height adjustment seat is provided with a positioning groove, which is used to cooperate with the positioning pin on the diversion valve clamping plate to realize the height adjustment of the diversion valve, so that the diversion head and the hose clamping module are at the same height.

[0008] Furthermore, the hose clamping module includes a clamping unit and a hose clamping fixture; The clamping unit is an electric or pneumatic clamping device; the hose clamping fixture is used to clamp the mask hose. The hose clamping fixture consists of two symmetrical fixtures, each with a semi-circular positioning groove. The front radius of the positioning groove is greater than the sum of the radius of the diverter head and the wall thickness of the mask hose, while the rear radius of the positioning groove is smaller than the radius of the mask hose.

[0009] Furthermore, the drive module is a pneumatic slide rail or an electric slide table.

[0010] Furthermore, a handle is provided at the rear end of the diversion valve clamping plate for rotating the diversion valve.

[0011] This invention also provides a method for assembling a diversion valve and a mask hose in a civil aviation oxygen supply system, using the above-mentioned assembly device. The assembly method comprises the following steps: Step 1: Place the oxygen generator on the oxygen generator fixing module, fix the diverter valve with the positioning groove of the diverter valve clamping plate, insert the positioning pin on the diverter valve clamping plate into the positioning groove of the oxygen generator height adjustment seat, and the spring of the oxygen generator fixing module is in a compressed state. Step 2: Push the diverter valve clamping plate to adjust the direction of the diverter valve, so that one of the positioning surfaces I of the diverter valve clamping plate is in contact with the positioning surface II of the oxygen generator height adjustment seat. The positioning pin on the diverter valve clamping plate is in the correct position in the positioning groove of the oxygen generator height adjustment seat, and automatically adjusts the compression of the oxygen generator fixing module spring under the action of the positioning groove, ensuring that the diverter head of the diverter valve is horizontal and at the same height as the hose clamping fixture. Step 3: Place the mask hose in the hose clamping fixture, control the clamping unit to drive the hose clamping fixture to clamp the mask hose, and drive the drive module to move the mask hose to complete the assembly of the mask hose and the distributor head. Step 4: Control the clamping unit to drive the hose clamping fixture to release the assembled mask hose, and retract the drive module to the initial position to complete the assembly of a splitter head and a mask hose. Step 5: Push the diverter valve clamping plate to adjust the direction of the diverter valve, and align the lower positioning surface I of the diverter valve clamping plate with the positioning surface II of the oxygen generator height adjustment seat. Then repeat steps 3 and 4 until all diverter heads and mask hoses are assembled.

[0012] Beneficial effects: 1. This invention can ensure that the installation position of the diverter valve and the mask hose are always at the same height according to different installation angles of the diverter valve, with good consistency and high accuracy; at the same time, it can achieve automated assembly by using a drive module, which is highly efficient.

[0013] 2. The oxygen generator fixing module of the present invention can automatically adjust the height of the oxygen generator (diverter valve) according to the position of the hose clamping module. The structure is simple and easy to implement.

[0014] 3. The front radius of the positioning groove of the hose clamping fixture of the present invention is greater than the sum of the radius of the diverter head and the wall thickness of the mask hose, which can reduce the resistance of the mask hose when inserted into the diverter head of the diverter valve and facilitate docking and assembly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 A schematic diagram of the fixed module structure for the oxygen generator.

[0017] Figure 3 This is a schematic diagram of the assembly structure of the diversion valve regulating module and the oxygen generator fixing module.

[0018] Figure 4 This is a schematic diagram of the flow divider valve regulating module.

[0019] Figure 5 Schematic diagram of the hose clamping module.

[0020] Figure 6This is a schematic diagram of the symmetrical fixture in a hose clamping fixture.

[0021] Among them, 1-Oxygen generator fixing module, 2-Diverter valve adjustment module, 3-Hose clamping module, 4-Drive module, 5-Oxygen generator, 6-Diverter valve, 7-Mask hose, 11-Oxygen generator mounting base, 12-Pin, 13-Compression spring, 14-Fixed base, 21-Diverter valve clamping plate, 21a-Positioning pin, 21b-Positioning groove I, 21c-Positioning surface I, 21d-Handle, 22-Oxygen generator height adjustment seat, 22a-Positioning groove II, 22b-Positioning surface II, 31-Clamping unit, 32-Hose clamping fixture, 61-Diverter head. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] This invention provides an assembly device for a diversion valve and mask hose in a civil aviation oxygen supply system, including an oxygen generator fixing module 1, a diversion valve adjusting module 2, a hose clamping module 3, and a drive module 4, as shown below. Figure 1 As shown.

[0024] The oxygen generator fixing module 1 is used to fix the oxygen generator 5, and the diversion valve 6 is set on the side of the oxygen generator 5; the diversion valve adjusting module 2 is used to drive the diversion valve 6 to rotate around the oxygen generator 5, so that the diversion head 61 of the diversion valve 6 is horizontal and at the same height as the hose clamping module 3; the hose clamping module 3 is used to clamp the mask hose 7, and the drive module 4 is used to drive the hose clamping module 3 to drive the mask hose 7 to dock and install with the diversion head 61.

[0025] Specifically, such as Figure 2 As shown, the oxygen generator fixing module 1 includes an oxygen generator mounting base 11, a pin 12, a compression spring 13, and a fixing base 14. The oxygen generator mounting base 11 is provided with a semi-circular or V-shaped positioning hole for fixing the oxygen generator 5. The fixing base 14 is located below the bottom of the oxygen generator mounting base 11. The pin 12 passes through the pin hole at the bottom of the oxygen generator mounting base 11 and the pin hole at the top of the fixing base 14, connecting the oxygen generator mounting base 11 and the fixing base 14. The compression spring 13 is fitted outside the pin 12, with its upper end contacting the bottom of the oxygen generator mounting base 11 and its lower end contacting the upper part of the fixing base 14. The positioning height of the diversion valve 6 can be adjusted by pressing the compression spring 13. The fixing base 14 is used to support the oxygen generator fixing module 1 and the oxygen generator 5 on it.

[0026] like Figure 3 , Figure 4As shown, the diversion valve adjustment module 2 includes a diversion valve clamping plate 21 and an oxygen generator height adjustment seat 22. The diversion valve clamping plate 21 is provided with a positioning groove I 21b that matches the shape of the diversion valve 6, which can both drive the diversion valve 6 to rotate around the oxygen generator 5 and prevent the diversion valve 6 from flipping along the axis of the oxygen generator 5. One side of the diversion valve clamping plate 21 is provided with a positioning surface I 21c that is set according to the number and angle of the diversion heads 61. The positioning surface I 21c fits with the positioning surface II 22b of the oxygen generator height adjustment seat 22 to ensure that the corresponding diversion head 61 remains horizontal. The oxygen generator height adjustment seat 22 is provided with a positioning groove II 22a, which is used to cooperate with the positioning pin 21a on the diversion valve clamping plate 21 to realize the height adjustment of the diversion valve 6, so that the diversion head 61 always remains horizontal and at the same height as the axis of the hose clamping fixture 32 of the hose clamping module 3. The positioning surface II22b on the oxygen generator height adjustment seat 22 is a vertical surface, which is used to cooperate with the positioning surface I21c on the diversion valve clamping plate 21 for positioning.

[0027] Preferably, a handle 21d is provided at the rear end of the diversion valve clamping plate 21 for easy gripping and for driving the diversion valve 6 to rotate.

[0028] like Figure 5 As shown, the hose clamping module 3 includes a clamping unit 31 and a hose clamping fixture 32; the clamping unit 31 is an electric or pneumatic clamping device; the hose clamping fixture 32 is used to clamp the mask hose 7; as shown... Figure 6 As shown, the hose clamping fixture 32 consists of two symmetrical fixtures. Each fixture has a semi-circular positioning groove, which is divided into a large-diameter section at the front and a small-diameter section at the rear. The radius of the large-diameter section is greater than the sum of the radius of the distributor head 61 and the wall thickness of the face mask hose 7, ensuring that the distributor head 61 can be smoothly inserted into the face mask hose 7. The radius of the large-diameter section is generally 0.5mm-2mm larger than the sum of the radius of the distributor head 61 and the wall thickness of the face mask hose 7. At the same time, to ensure the reliability of the connection between the two, the length of the large-diameter section is generally greater than two-thirds of the length of the distributor head 61. To ensure the clamping force of the fixture on the face mask hose 7, the radius of the small-diameter section at the rear of the positioning groove is smaller than the radius of the face mask hose 7, which is generally 0.5mm-1mm smaller than the radius of the face mask hose 7.

[0029] Drive module 4 is a pneumatic slide rail or an electric slide table, which can provide the power for sliding.

[0030] This invention also provides a method for assembling a diversion valve and a mask hose in a civil aviation oxygen supply system, using the aforementioned assembly device. The assembly method comprises the following steps: Step 1: Place the oxygen generator 5 on the oxygen generator fixing module 1, fix the diverter valve 6 with the positioning groove of the diverter valve clamping plate 21, insert the positioning pin 21a on the diverter valve clamping plate 21 into the positioning groove of the oxygen generator height adjusting seat 22, and the spring of the oxygen generator fixing module 1 is in a compressed state.

[0031] Step 2: Push the diversion valve clamping plate 21 to adjust the direction of the diversion valve 6, so that one of the positioning surfaces I 21c of the diversion valve clamping plate 21 is in contact with the positioning surface II 22b of the oxygen generator height adjustment seat 22. The positioning pin 21a on the diversion valve clamping plate 21 is in the correct position in the positioning groove of the oxygen generator height adjustment seat 22, and automatically adjusts the compression of the spring of the oxygen generator fixing module 1 under the action of the positioning groove, ensuring that the diversion head 61 of the diversion valve 6 is horizontal and at the same height as the hose clamping fixture 32.

[0032] Step 3: Place the mask hose 7 into the hose clamping fixture 32. Control the clamping unit 31 through the control system to drive the hose clamping fixture 32 to clamp the mask hose 7. Control the drive module 4 through the control system to move the mask hose 7, and complete the assembly of the mask hose 7 and the distributor head 61.

[0033] Step four: The clamping unit 31 is controlled by the control system to drive the hose clamping fixture 32 to release the assembled mask hose 7, and the drive module 4 is returned to the initial position, thus completing the assembly of a splitter head 61 and a mask hose 7.

[0034] Step 5: Push handle 21d to adjust the direction of diverter valve 6, so that the next positioning surface I 21c of diverter valve clamping plate 21 is aligned with the positioning surface II 22b of oxygen generator height adjustment seat 22. Then repeat steps 3 and 4 until all diverter heads 61 and mask hoses 7 are assembled.

[0035] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An assembly device for a diversion valve and mask hose in a civil aviation oxygen supply system, characterized in that, Includes an oxygen generator fixing module, a diversion valve adjustment module, a hose clamping module, and a drive module; The oxygen generator fixing module is used to fix the oxygen generator, and the diversion valve is located on the side of the oxygen generator; the diversion valve adjusting module is used to drive the diversion valve to rotate around the oxygen generator, so that the diversion head of the diversion valve is horizontal and at the same height as the hose clamping module; the hose clamping module is used to clamp the mask hose, and the drive module is used to drive the hose clamping module to drive the mask hose to connect and install with the diversion head.

2. The assembly device for the diversion valve and mask hose of the civil aviation oxygen supply system as described in claim 1, characterized in that, The oxygen generator fixing module includes an oxygen generator mounting base, a pin, a compression spring, and a fixing base. The oxygen generator mounting base is provided with a semi-circular or V-shaped positioning port for fixing the oxygen generator; the fixing base is located below the bottom of the oxygen generator mounting base, and the pin passes through the pin hole at the bottom of the oxygen generator mounting base and the pin hole at the top of the fixing base to connect the oxygen generator mounting base and the fixing base; the compression spring is sleeved on the outside of the pin, with its upper end contacting the bottom of the oxygen generator mounting base and its lower end contacting the upper part of the fixing base, and the positioning height of the diversion valve can be adjusted by pressing the compression spring; the fixing base is used to support the oxygen generator fixing module and the oxygen generator.

3. The assembly device for the diversion valve and mask hose of the civil aviation oxygen supply system as described in claim 2, characterized in that, The diversion valve adjustment module includes a diversion valve clamping plate and an oxygen generator height adjustment seat; The diversion valve clamping plate is provided with a positioning groove adapted to the shape of the diversion valve; a positioning surface I is provided on one side of the diversion valve clamping plate according to the number and angle of the diversion head, and the positioning surface I is in contact with the positioning surface II of the oxygen generator height adjustment seat to ensure that the corresponding diversion head is kept horizontal. The oxygen generator height adjustment seat is provided with a positioning groove, which is used to cooperate with the positioning pin on the diversion valve clamping plate to realize the height adjustment of the diversion valve, so that the diversion head and the hose clamping module are at the same height.

4. The assembly device for the diversion valve and mask hose of the civil aviation oxygen supply system as described in claim 3, characterized in that, The hose clamping module includes a clamping unit and a hose clamping fixture; The clamping unit is an electric or pneumatic clamping device; the hose clamping fixture is used to clamp the mask hose. The hose clamping fixture consists of two symmetrical fixtures, each with a semi-circular positioning groove. The front radius of the positioning groove is greater than the sum of the radius of the diverter head and the wall thickness of the mask hose, while the rear radius of the positioning groove is smaller than the radius of the mask hose.

5. The assembly device for the diversion valve and mask hose of the civil aviation oxygen supply system as described in claim 4, characterized in that, The drive module is a pneumatic slide rail or an electric slide table.

6. The assembly device for the diversion valve and mask hose of the civil aviation oxygen supply system as described in claim 4 or 5, characterized in that, A handle is provided at the rear end of the flow divider clamping plate to drive the flow divider to rotate.

7. A method for assembling a diverter valve and a mask hose in a civil aviation oxygen supply system, characterized in that, The assembly method using the assembly apparatus as described in any one of claims 4-6 comprises the following steps: Step 1: Place the oxygen generator on the oxygen generator fixing module, fix the diverter valve with the positioning groove of the diverter valve clamping plate, insert the positioning pin on the diverter valve clamping plate into the positioning groove of the oxygen generator height adjustment seat, and the spring of the oxygen generator fixing module is in a compressed state. Step 2: Push the diverter valve clamping plate to adjust the direction of the diverter valve, so that one of the positioning surfaces I of the diverter valve clamping plate is in contact with the positioning surface II of the oxygen generator height adjustment seat. The positioning pin on the diverter valve clamping plate is in the correct position in the positioning groove of the oxygen generator height adjustment seat, and automatically adjusts the compression of the oxygen generator fixing module spring under the action of the positioning groove, ensuring that the diverter head of the diverter valve is horizontal and at the same height as the hose clamping fixture. Step 3: Place the mask hose in the hose clamping fixture, control the clamping unit to drive the hose clamping fixture to clamp the mask hose, and drive the drive module to move the mask hose to complete the assembly of the mask hose and the distributor head. Step 4: Control the clamping unit to drive the hose clamping fixture to release the assembled mask hose, and retract the drive module to the initial position to complete the assembly of a splitter head and a mask hose. Step 5: Push the diverter valve clamping plate to adjust the direction of the diverter valve, and align the lower positioning surface I of the diverter valve clamping plate with the positioning surface II of the oxygen generator height adjustment seat. Then repeat steps 3 and 4 until all diverter heads and mask hoses are assembled.

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