An integrated detection device for formaldehyde and pH value in textiles

Abstract

This utility model relates to an integrated detection device for formaldehyde and pH value in textiles, belonging to the field of textile testing technology. It includes a base, a bracket on the base, a microfluidic chip detachably mounted on the bracket, a color camera and a photoelectric light source above the microfluidic chip, and a light intensity sensor below the microfluidic chip. The light intensity sensor and the photoelectric light source are positioned opposite each other. A connecting ring is fitted onto the light intensity sensor. A transposition component is provided between the connecting ring and the base, allowing relative rotation between the connecting ring and the base. A centrifugal component is provided between the connecting ring and the bracket, also allowing relative rotation between the connecting ring and the bracket. This application simplifies the formaldehyde and pH value detection steps for multiple samples.

Description

Technical Field

[0001] This utility model relates to the field of textile testing technology, and in particular to an integrated testing device for formaldehyde and pH value of textiles. Background Technology

[0002] Currently, textile quality testing mainly includes physical performance testing and chemical substance testing. Physical performance testing primarily includes abrasion resistance testing and tensile strength testing, while chemical substance testing mainly includes lead content testing, formaldehyde content determination, harmful substance testing, and pH value testing.

[0003] The related technology includes a Chinese patent with authorization announcement number CN111545261B, which provides a device and method for detecting formaldehyde and pH value in textiles. The device includes a control unit, which is electrically connected to a photoelectric detection light source, a color detection mechanism, and a photoelectric detection mechanism. A microfluidic chip is disposed below the photoelectric detection light source and the color detection mechanism. The microfluidic chip is a multi-sample detection chip or a single-sample detection chip. The formaldehyde detection area of ​​the microfluidic chip corresponds to the photoelectric detection light source, and the pH detection area of ​​the microfluidic chip corresponds to the color detection mechanism. The photoelectric detection mechanism is located below the formaldehyde detection area of ​​the microfluidic chip. A microfluidic chip is selected based on the number of samples to be tested. The textile extract reacts with the formaldehyde detection reagent and pH detection reagent pre-stored in the microfluidic chip to obtain reaction products. The microfluidic chip is installed on a rack, with the formaldehyde detection area of ​​the microfluidic chip aligned with the photoelectric detection light source, and the pH detection area aligned with the color detection mechanism. Through the cooperation of the photoelectric detection light source and the photoelectric detection mechanism, the light intensity information of the formaldehyde detection area is sent to the control unit. The control unit detects the formaldehyde content using spectrophotometry. The color detection mechanism collects the color information of the pH detection area and sends the collected color information to the control unit. The control unit detects the pH value using color detection.

[0004] In the process of developing this application, the inventors discovered that the technology has at least the following problems: When multiple samples are tested, after adding the textile extract to the multi-sample detection chip, the multi-sample detection chip needs to be installed on a centrifuge. The centrifuge drives the multi-sample detection chip to rotate, causing the textile extract in the multi-sample detection chip to flow into the multi-sample formaldehyde detection pool and the multi-sample pH detection pool of the multi-sample detection chip. After the multi-sample formaldehyde detection pool and the multi-sample pH detection pool produce the corresponding reaction products, the staff then transfers the multi-sample detection chip from the centrifuge to the rack, which makes the steps for testing multiple samples of formaldehyde and pH cumbersome. Utility Model Content

[0005] To simplify the formaldehyde and pH testing process for multiple samples, this application provides an integrated formaldehyde and pH testing device for textiles.

[0006] The integrated detection device for formaldehyde and pH value of textiles provided in this application adopts the following technical solution: An integrated formaldehyde and pH value detection device for textiles includes a base, a bracket on the base, a microfluidic chip detachably mounted on the bracket, a color camera and a photoelectric light source above the microfluidic chip, a light intensity sensor below the microfluidic chip, the light intensity sensor and the photoelectric light source being positioned opposite each other, a connecting ring seat fitted onto the light intensity sensor, a transposition component between the connecting ring seat and the base for relative rotation of the connecting ring seat and the base, and a centrifugal component between the connecting ring seat and the bracket for relative rotation of the connecting ring seat and the bracket.

[0007] By adopting the above technical solution, when multiple samples are tested, the textile extract is added to the microfluidic chip, which is then installed on a tray. The centrifugation component drives the tray to rotate the microfluidic chip, causing the textile extract in the microfluidic chip to mix with the formaldehyde detection reagent and pH detection reagent pre-stored in the microfluidic chip. When the corresponding reaction products are generated, the transposition component causes the connecting ring seat to rotate synchronously with the tray. The reaction products of the textile extract and formaldehyde detection reagent move between the light intensity sensor and the photoelectric light source. The light intensity information is collected by the light intensity sensor and the photoelectric light source, and the formaldehyde content is detected by spectrophotometry. The transposition component moves the reaction products of the textile extract and pH detection reagent to below the color camera. The color information is collected by the color camera, and the pH value is detected by color detection. This reduces the need for the microfluidic chip to be transferred between different devices when testing multiple samples, and simplifies the formaldehyde and pH detection steps for multiple samples.

[0008] Preferably, auxiliary illumination light sources are provided on both sides of the color camera, and a frame is provided on the color camera, the auxiliary illumination light sources and the photoelectric light source, and the frame is connected to the base.

[0009] By adopting the above technical solution, an auxiliary illumination light source is provided for the color camera to take pictures.

[0010] Preferably, a sliding groove is provided on the base, a sliding block is slidably disposed in the sliding groove, the sliding block is fixedly connected to the frame, a sliding motor is fixedly disposed in the sliding groove, a sliding screw is fixedly disposed on the output shaft of the sliding motor, and the sliding screw is threadedly connected to the sliding block.

[0011] By adopting the above technical solution, the sliding motor drives the sliding screw to rotate, the rotation of the sliding screw causes the sliding block to move along the sliding groove, the movement of the sliding block drives the frame to move, and the movement of the frame drives the color camera, auxiliary illumination light source and photoelectric light source to move. When the microfluidic chip is disassembled and assembled from the bracket, the sliding motor is used to move the color camera, auxiliary illumination light source and photoelectric light source away from the top of the bracket, so as to facilitate the disassembly and assembly of the microfluidic chip and the bracket. After the microfluidic chip and the bracket are disassembled and assembled, the sliding motor is used to move the color camera, auxiliary illumination light source and photoelectric light source back to the top of the bracket.

[0012] Preferably, a first positioning pin and a second positioning pin are fixedly disposed on the microfluidic chip, and a first positioning hole and a second positioning hole are formed on the bracket. The first positioning hole is for the insertion of the first positioning pin, and the second positioning hole is for the insertion of the second positioning pin.

[0013] By adopting the above technical solution, the microfluidic chip and the bracket are connected by the first positioning bolt and the second positioning bolt.

[0014] Preferably, the microfluidic chip is provided with a plurality of single-sample detection units, which are arranged in a circular array around the axis of the microfluidic chip. Each single-sample detection unit includes a single-sample formaldehyde detection cell, a single-sample pH detection cell, a single-sample liquid inlet microfluidic channel, a single-sample liquid inlet, a set of single-sample ventilation microfluidic channels, and a set of single-sample ventilation ports. The single-sample formaldehyde detection cell, single-sample pH detection cell, single-sample liquid inlet microfluidic channel, and single-sample ventilation microfluidic channel are all disposed within the microfluidic chip, and the single-sample liquid inlet and single-sample ventilation ports are all disposed within the microfluidic chip. The single-sample formaldehyde detection pool and the single-sample pH detection pool are both connected to one end of the single-sample liquid inlet microfluidic channel, and the other end of the single-sample liquid inlet microfluidic channel is connected to the single-sample liquid inlet. One of the single-sample ventilation microfluidic channels is connected between one single-sample ventilation port and the single-sample formaldehyde detection pool, and the other single-sample ventilation microfluidic channel is connected between the other single-sample ventilation port and the single-sample pH detection pool. The single-sample formaldehyde detection pool is used to be set opposite to the photoelectric light source and the light intensity sensor, and the single-sample pH detection pool is used to be set opposite to the color camera.

[0015] By adopting the above technical solution, the single-sample formaldehyde detection pool is pre-stored with formaldehyde detection reagent, and the single-sample pH detection pool is pre-stored with pH detection reagent. The materials of the single-sample formaldehyde detection pool and the single-sample pH detection pool are transparent. When performing single-sample detection, textile extract is added through the single-sample inlet. The textile extract enters the single-sample formaldehyde detection pool and the single-sample pH detection pool respectively, and corresponding reaction products are generated in the single-sample formaldehyde detection pool and the single-sample pH detection pool.

[0016] Preferably, the microfluidic chip is provided with a plurality of multi-sample detection units, which are arranged in a circular array around the axis of the microfluidic chip. Each multi-sample detection unit includes a multi-sample inlet, a multi-sample vent, a set of multi-sample storage tanks, a multi-sample connecting microfluidic channel, a set of multi-sample liquid inlet microfluidic channels, a multi-sample formaldehyde detection tank, and a multi-sample pH detection tank. The multi-sample storage tank, the multi-sample connecting microfluidic channel, the multi-sample liquid inlet microfluidic channel, the multi-sample formaldehyde detection tank, and the multi-sample pH detection tank are all disposed within the microfluidic chip. The multi-sample inlet and multi-sample... All vents are located on the microfluidic chip. The multi-sample liquid inlet and multi-sample vent are both connected to the multi-sample liquid storage tank. The multi-sample connecting microfluidic channels are connected between the multi-sample liquid storage tanks. One of the multi-sample liquid inlet microfluidic channels is connected between one of the multi-sample liquid storage tanks and the multi-sample formaldehyde detection tank. The other multi-sample liquid inlet microfluidic channel is connected between another multi-sample liquid storage tank and the multi-sample pH detection tank. The multi-sample formaldehyde detection tank is used to be positioned opposite to the photoelectric light source and the light intensity sensor. The multi-sample pH detection tank is used to be positioned opposite to the color camera.

[0017] By adopting the above technical solution, the multi-sample formaldehyde detection pool is pre-stored with formaldehyde detection reagent, and the multi-sample pH detection pool is pre-stored with pH detection reagent. The materials of the multi-sample formaldehyde detection pool and the multi-sample pH detection pool are transparent. When performing multi-sample detection, textile extract is added through the multi-sample inlet. The textile extract enters the multi-sample formaldehyde detection pool and the multi-sample pH detection pool respectively, and corresponding reaction products are generated in the multi-sample formaldehyde detection pool and the multi-sample pH detection pool.

[0018] Preferably, the transposition assembly includes a transposition ring seat, a transposition motor, a transposition worm wheel, and a transposition worm. The transposition ring seat is sleeved on the light intensity sensor, the bottom of the transposition ring seat is rotatably connected to the base, and the top of the transposition ring seat is fixedly connected to the connecting ring seat. The transposition worm wheel is sleeved on the transposition ring seat and fixedly connected to the transposition ring seat. The transposition motor is fixedly mounted on the base, and the transposition worm is fixedly connected to the output shaft of the transposition motor. The transposition worm wheel and the transposition worm mesh with each other.

[0019] By adopting the above technical solution, the transposition motor starts and drives the transposition worm to rotate, the transposition worm to rotate, the transposition worm to rotate, the transposition worm to rotate, the transposition ring seat to rotate, and the transposition ring seat to rotate the connecting ring seat.

[0020] Preferably, the centrifugal assembly includes a centrifugal ring seat, a centrifugal motor, a drive gear, and a transmission gear. The centrifugal ring seat is sleeved on the light intensity sensor, the bottom of the centrifugal ring seat is rotatably connected to the top of the connecting ring seat, the top of the centrifugal ring seat is fixedly connected to the bracket, the transmission gear is sleeved on the centrifugal ring seat and fixedly connected to the centrifugal ring seat, the centrifugal motor is fixedly mounted on the connecting ring seat, the drive gear is fixedly connected to the output shaft of the centrifugal motor, and the drive gear and the transmission gear mesh with each other.

[0021] By adopting the above technical solution, the centrifugal motor starts and drives the drive gear to rotate, the drive gear rotates and drives the transmission gear to rotate, the transmission gear rotates and drives the centrifugal ring seat to rotate, and the centrifugal ring seat rotates and drives the bracket to rotate.

[0022] Preferably, a first retaining ring is fitted on the output shaft of the centrifugal motor, the first retaining ring is fixedly connected to the output shaft of the centrifugal motor, and a plurality of first teeth are provided on the outer wall of the first retaining ring. A centrifugal piston cylinder is fixedly installed on the connecting ring seat, and a second retaining block is fixedly installed on the output shaft of the centrifugal piston cylinder. The second retaining block is provided with a plurality of second teeth, and the second teeth mesh with the first teeth.

[0023] By adopting the above technical solution, when the centrifugal motor drives the centrifugal ring seat to rotate, the output shaft of the centrifugal piston cylinder retracts, causing the second tooth to separate from the first tooth, thus facilitating the rotation of the output shaft of the centrifugal motor. When the centrifugal motor stops, the output shaft of the centrifugal piston cylinder opens, causing the second tooth to mesh with the first tooth, thereby engaging the first retaining ring with the second retaining block, making it difficult for the output shaft of the centrifugal motor to rotate.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a base, bracket, microfluidic chip, color camera, photoelectric light source, light intensity sensor, connecting ring seat, transposition component and centrifugation component, the transfer of microfluidic chip between different devices is reduced when multiple samples are detected, and the detection steps for formaldehyde and pH value of multiple samples are simplified. 2. By setting up a transposition ring seat, a transposition motor, a transposition worm wheel, and a transposition worm, the connecting ring seat and the machine base can rotate relative to each other; 3. By setting up a centrifugal ring seat, a centrifugal motor, a drive gear, and a transmission gear, the connecting ring seat and the bracket can rotate relative to each other. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of an integrated formaldehyde and pH value detection device for textiles according to an embodiment of this application.

[0026] Figure 2 This is a cross-sectional view illustrating the connection relationship between the frame and the base in the embodiments of this application.

[0027] Figure 3 This is a cross-sectional view illustrating the connection relationship between the microfluidic chip and the carrier in the embodiments of this application.

[0028] Figure 4 This is a cross-sectional view illustrating the positional relationship between the microfluidic chip and the single-sample detection unit in the embodiments of this application.

[0029] Figure 5 This is a cross-sectional view illustrating the positional relationship between the microfluidic chip and the multi-sample detection unit in the embodiments of this application.

[0030] Figure 6 This is a cross-sectional view illustrating the connection relationship between the connecting ring seat and the machine base in the embodiments of this application.

[0031] Figure 7 This is a cross-sectional view illustrating the positional relationship between the first tooth and the second tooth in the embodiments of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Base; 2. Bracket; 21. First positioning hole; 211. First positioning bolt; 22. Second positioning hole; 221. Second positioning bolt; 3. Microfluidic chip; 31. Single sample detection unit; 311. Single sample formaldehyde detection cell; 312. Single sample pH detection cell; 313. Single sample liquid inlet microfluidic channel; 314. Single sample liquid inlet; 315. Single sample ventilation microfluidic channel; 316. Single sample ventilation port; 32. Multi-sample detection unit; 321. Multi-sample liquid inlet; 322. Multi-sample ventilation port; 323. Multi-sample storage tank; 324. Multi-sample connecting microfluidic channel; 325. Multi-sample liquid inlet microfluidic channel; 3 26. Multi-sample formaldehyde detection pool; 327. Multi-sample pH detection pool; 4. Color camera; 41. Auxiliary illumination light source; 5. Light intensity sensor; 51. Photoelectric light source; 6. Connecting ring seat; 7. Transposition assembly; 71. Transposition ring seat; 72. Transposition motor; 73. Transposition worm gear; 74. Transposition worm; 8. Centrifuge assembly; 81. Centrifuge ring seat; 82. Centrifuge motor; 821. First retaining ring; 822. First tooth; 83. Drive gear; 84. Transmission gear; 85. Centrifuge piston cylinder; 851. Second retaining block; 852. Second tooth; 9. Frame; 91. Sliding groove; 92. Sliding block; 93. Sliding motor; 94. Sliding screw. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0034] This application discloses an integrated detection device for formaldehyde and pH value in textiles. (Refer to...) Figure 1The system includes a base 1, on which a light intensity sensor 5 and a frame 9 are mounted. A color camera 4, a set of auxiliary illumination light sources 41, and a photoelectric light source 51 are mounted on the frame 9. The light intensity sensor 5 and the photoelectric light source 51 are positioned opposite each other, with the color camera 4 located between the auxiliary illumination light sources 41, which provide light for the color camera 4 to capture images. A microfluidic chip 3 is configured below the color camera 4, below the auxiliary illumination light sources 41, below the photoelectric light source 51, and above the light intensity sensor 5. The microfluidic chip 3 can be a single-sample chip or a multi-sample chip. The light intensity information of the microfluidic chip 3 is collected by the light intensity sensor 5 and the photoelectric light source 51, and the formaldehyde content is detected using spectrophotometry. The color information of the microfluidic chip 3 is collected by the color camera 4, and the pH value is detected using a color detection method.

[0035] Reference Figure 1 and Figure 4 When the microfluidic chip 3 is a single-sample chip, several single-sample detection units 31 are arranged on the microfluidic chip 3, and the single-sample detection units 31 are arranged in a circular array with the axis of the microfluidic chip 3 as the center. The single-sample detection unit 31 includes a single-sample formaldehyde detection cell 311, a single-sample pH detection cell 312, a single-sample liquid inlet microfluidic channel 313, a single-sample liquid inlet 314, a set of single-sample ventilation microfluidic channels 315, and a set of single-sample ventilation ports 316. The single-sample formaldehyde detection cell 311, the single-sample pH detection cell 312, the single-sample liquid inlet microfluidic channel 313, and the single-sample ventilation microfluidic channel 315 are all arranged inside the microfluidic chip 3, and the single-sample liquid inlet 314 and the single-sample ventilation port 316 are all arranged on the microfluidic chip 3. Both the single-sample formaldehyde detection pool 311 and the single-sample pH detection pool 312 are connected to one end of the single-sample liquid inlet microfluidic channel 313, and the other end of the single-sample liquid inlet microfluidic channel 313 is connected to the single-sample liquid inlet 314. One single-sample ventilation microfluidic channel 315 is connected between one single-sample ventilation port 316 and the single-sample formaldehyde detection pool 311, and another single-sample ventilation microfluidic channel 315 is connected between the other single-sample ventilation port 316 and the single-sample pH detection pool 312. The single-sample formaldehyde detection pool 311 and the single-sample pH detection pool 312 are pre-filled with formaldehyde detection reagent. The areas of the single-sample formaldehyde detection pool 311 and the single-sample pH detection pool 312 are made of transparent material. The single-sample formaldehyde detection pool 311 is positioned opposite to the photoelectric light source 51 and the light intensity sensor 5, and the single-sample pH detection pool 312 is positioned opposite to the color camera 4. When performing single-sample testing, the textile extract is added through the single-sample inlet 314. The textile extract enters the single-sample formaldehyde detection pool 311 and the single-sample pH detection pool 312 respectively, and corresponding reaction products are generated in the single-sample formaldehyde detection pool 311 and the single-sample pH detection pool 312.

[0036] Reference Figure 1 and Figure 5 When the microfluidic chip 3 is a multi-sample chip, several multi-sample detection units 32 are arranged on the microfluidic chip 3, and the multi-sample detection units 32 are arranged in a circular array with the axis of the microfluidic chip 3 as the center. The multi-sample detection unit 32 includes a multi-sample liquid inlet 321, a multi-sample air outlet 322, a set of multi-sample liquid storage pools 323, a multi-sample connecting microfluidic channel 324, a set of multi-sample liquid inlet microfluidic channels 325, a multi-sample formaldehyde detection pool 326, and a multi-sample pH detection pool 327. The multi-sample liquid storage pool 323, the multi-sample connecting microfluidic channel 324, the multi-sample liquid inlet microfluidic channel 325, the multi-sample formaldehyde detection pool 326, and the multi-sample pH detection pool 327 are all arranged inside the microfluidic chip 3, and the multi-sample liquid inlet 321 and the multi-sample air outlet 322 are both arranged on the microfluidic chip 3. Both the multi-sample inlet 321 and the multi-sample vent 322 are connected to the multi-sample storage tank 323, and the multi-sample connecting microfluidic channel 324 is connected and arranged between the multi-sample storage tanks 323. One multi-sample inlet microfluidic channel 325 is connected and arranged between one multi-sample storage tank 323 and the multi-sample formaldehyde detection tank 326, and another multi-sample inlet microfluidic channel 325 is connected and arranged between another multi-sample storage tank 323 and the multi-sample pH detection tank 327. The multi-sample formaldehyde detection tank 326 contains pre-stored formaldehyde detection reagent, and the multi-sample pH detection tank 327 contains pre-stored pH detection reagent. The areas of the multi-sample formaldehyde detection tank 326 and the multi-sample pH detection tank 327 are made of transparent material. The multi-sample formaldehyde detection tank 326 is arranged opposite to the photoelectric light source 51 and the light intensity sensor 5, and the multi-sample pH detection tank 327 is arranged opposite to the color camera 4. When performing multi-sample testing, the textile extract is added through the multi-sample inlet 321. The textile extract enters the multi-sample formaldehyde detection pool 326 and the multi-sample pH detection pool 327 respectively, and corresponding reaction products are generated in the multi-sample formaldehyde detection pool 326 and the multi-sample pH detection pool 327.

[0037] refer to Figure 1A connecting ring seat 6 is fitted onto the light intensity sensor 5, and the connecting ring seat 6 is rotatably connected to the base 1. A transposition component 7 is installed between the connecting ring seat 6 and the base 1, which is used to allow the connecting ring seat 6 and the base 1 to rotate relative to each other. A bracket 2 is rotatably mounted on the connecting ring seat 6, and a centrifugal component 8 is installed between the connecting ring seat 6 and the bracket 2, which is used to allow the connecting ring seat 6 and the bracket 2 to rotate relative to each other. The bracket 2 is fitted onto the light intensity sensor 5, and the bracket 2 is detachably connected to the microfluidic chip 3. After the textile extract is added to the microfluidic chip 3, the microfluidic chip 3 is then installed on the bracket 2. Then, the centrifugal component 8 drives the bracket 2 to rotate the microfluidic chip 3, so that the textile extract in the microfluidic chip 3 is mixed with the formaldehyde detection reagent and pH detection reagent pre-stored in the microfluidic chip 3. After the corresponding reaction products are generated, the transposition component 7 causes the connecting ring seat 6 to rotate synchronously with the bracket 2, moving the reaction products of the textile extract and formaldehyde detection reagent between the light intensity sensor 5 and the photoelectric light source 51, and moving the reaction products of the textile extract and pH detection reagent below the color camera 4. The light intensity information is collected by the light intensity sensor 5 and the photoelectric light source 51, and the formaldehyde content is detected by spectrophotometry; the color information is collected by the color camera 4, and the pH value is detected by color detection. This reduces the need for the microfluidic chip 3 to be transferred between different devices during multi-sample testing, simplifying the formaldehyde and pH value detection steps for multiple samples.

[0038] Reference Figure 1 and Figure 3 The microfluidic chip 3 is equipped with a first positioning pin 211 and a second positioning pin 221, and the bracket 2 has a first positioning hole 21 and a second positioning hole 22. The first positioning hole 21 is for the insertion of the first positioning pin 211, and the second positioning hole 22 is for the insertion of the second positioning pin 221. The microfluidic chip 3 and the bracket 2 are connected by the first positioning pin 211 and the second positioning pin 221.

[0039] Reference Figure 1 and Figure 2A sliding groove 91 is provided on the base 1, and a sliding block 92 is slidably disposed in the sliding groove 91. The sliding block 92 is welded to the frame 9. A sliding motor 93 is installed in the sliding groove 91, and a sliding screw 94 is installed on the output shaft of the sliding motor 93. The sliding screw 94 is threadedly connected to the sliding block 92. The sliding motor 93 drives the sliding screw 94 to rotate, and the rotation of the sliding screw 94 causes the sliding block 92 to move along the sliding groove 91. The movement of the sliding block 92 drives the frame 9 to move, and the movement of the frame 9 drives the color camera 4, the auxiliary illumination light source 41, and the photoelectric light source 51 to move. When the microfluidic chip 3 is disassembled from the bracket 2, the sliding motor 93 is used to move the color camera 4, the auxiliary illumination light source 41, and the photoelectric light source 51 away from the bracket 2 to facilitate the disassembly and assembly of the microfluidic chip 3 and the bracket 2. After the microfluidic chip 3 and the bracket 2 are disassembled and assembled, the sliding motor 93 is used to move the color camera 4, the auxiliary illumination light source 41, and the photoelectric light source 51 back to the top of the bracket 2.

[0040] Reference Figure 1 and Figure 6 The transposition assembly 7 includes a transposition ring seat 71, a transposition motor 72, a transposition worm gear 73, and a transposition worm 74. The transposition ring seat 71 is fitted onto the light intensity sensor 5, with its bottom rotatably connected to the base 1 and its top welded to the connecting ring seat 6. The transposition worm gear 73 is fitted onto the transposition ring seat 71 and welded to it. The transposition motor 72 is mounted on the base 1, and the transposition worm 74 is welded to the output shaft of the transposition motor 72, with the transposition worm gear 73 and the transposition worm 74 meshing with each other. When the transposition motor 72 starts, it drives the transposition worm 74 to rotate. The rotation of the transposition worm 74 drives the transposition worm gear 73 to rotate, which in turn drives the transposition ring seat 71 to rotate, which in turn drives the connecting ring seat 6 to rotate.

[0041] Reference Figures 1 to 7The centrifugal assembly 8 includes a centrifugal ring seat 81, a centrifugal motor 82, a drive gear 83, and a transmission gear 84. The centrifugal ring seat 81 is fitted onto the light intensity sensor 5, with its bottom rotatably connected to the top of a connecting ring seat 6, and its top welded to a bracket 2. The transmission gear 84 is fitted onto the centrifugal ring seat 81 and welded to it. The centrifugal motor 82 is mounted on the connecting ring seat 6, and the drive gear 83 is mounted on the output shaft of the centrifugal motor 82, meshing with the transmission gear 84. When the centrifugal motor 82 starts, it drives the drive gear 83 to rotate, which in turn drives the transmission gear 84 to rotate, which in turn drives the centrifugal ring seat 81 to rotate, and vice versa. A first retaining ring 821 is fitted onto the output shaft of the centrifugal motor 82 and welded to it. Several first teeth 822 are mounted on the outer wall of the first retaining ring 821. A centrifugal piston cylinder 85 is mounted on the connecting ring seat 6. A second locking block 851 is mounted on the output shaft of the centrifugal piston cylinder 85. Several second teeth 852 are mounted on the second locking block 851, and the second teeth 852 mesh with the first teeth 822. When the centrifugal motor 82 drives the centrifugal ring seat 81 to rotate, the output shaft of the centrifugal piston cylinder 85 retracts, causing the second teeth 852 to separate from the first teeth 822, thus facilitating the rotation of the output shaft of the centrifugal motor 82. When the centrifugal motor 82 stops, the output shaft of the centrifugal piston cylinder 85 opens, causing the second teeth 852 to mesh with the first teeth 822, thereby engaging the first retaining ring 821 with the second locking block 851, making it difficult for the output shaft of the centrifugal motor 82 to rotate.

[0042] The implementation principle of the integrated formaldehyde and pH detection device for textiles in this application embodiment is as follows: Multiple samples of textile extract are added to a microfluidic chip 3, which is then mounted on a bracket 2. The output shaft of the centrifugal piston cylinder 85 retracts, and the centrifugal motor 82 starts, driving the bracket 2 to rotate the microfluidic chip 3. This mixes the textile extract with the pre-stored formaldehyde and pH detection reagents in the microfluidic chip 3. When the corresponding reaction products are generated, the centrifugal motor 82 stops, and the output shaft of the centrifugal piston cylinder 85 extends. Then, the shift motor 72 drives the connecting ring seat 6 to rotate the bracket 2 synchronously. The reaction products of the textile extract and formaldehyde detection reagent move between a light intensity sensor 5 and a photoelectric light source 51. The light intensity information is collected by the light intensity sensor 5 and the photoelectric light source 51, and the formaldehyde content is detected using spectrophotometry. The reaction products of the textile extract and pH detection reagent move below a color camera 4, where color information is collected, and the pH value is detected using color detection. This reduces the need to transfer the microfluidic chip 3 between different devices during multi-sample testing, and simplifies the steps for detecting formaldehyde and pH values ​​in multiple samples.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated detection device for formaldehyde and pH value of textiles, comprising a base, a bracket on the base, a microfluidic chip detachably mounted on the bracket, a color camera and a photoelectric light source mounted above the microfluidic chip, and a light intensity sensor mounted below the microfluidic chip, the light intensity sensor being positioned opposite to the photoelectric light source, characterized in that: A connecting ring seat is fitted onto the light intensity sensor. A transposition component is provided between the connecting ring seat and the base. The transposition component is used to allow the connecting ring seat and the base to rotate relative to each other. A centrifugal component is provided between the connecting ring seat and the bracket. The centrifugal component is used to allow the connecting ring seat and the bracket to rotate relative to each other.

2. The textile formaldehyde and pH integrated detection equipment according to claim 1, characterized in that: Auxiliary illumination light sources are provided on both sides of the color camera. A frame is provided on the color camera, the auxiliary illumination light sources, and the photoelectric light source. The frame is connected to the base.

3. The integrated formaldehyde and pH value detection device for textiles according to claim 2, characterized in that: A sliding groove is provided on the base, and a sliding block is slidably arranged in the sliding groove. The sliding block is fixedly connected to the frame. A sliding motor is fixedly arranged in the sliding groove, and a sliding screw is fixedly arranged on the output shaft of the sliding motor. The sliding screw is threadedly connected to the sliding block.

4. The integrated detection device for formaldehyde and pH value of textiles according to claim 1, characterized in that: The microfluidic chip is fixedly provided with a first positioning pin and a second positioning pin, and the bracket is provided with a first positioning hole and a second positioning hole. The first positioning hole is for the insertion of the first positioning pin, and the second positioning hole is for the insertion of the second positioning pin.

5. The integrated formaldehyde and pH value detection device for textiles according to claim 4, characterized in that: The microfluidic chip is equipped with several single-sample detection units, which are arranged in a circular array around the axis of the microfluidic chip. Each single-sample detection unit includes a single-sample formaldehyde detection cell, a single-sample pH detection cell, a single-sample liquid inlet microfluidic channel, a single-sample liquid inlet, a set of single-sample ventilation microfluidic channels, and a set of single-sample ventilation ports. The single-sample formaldehyde detection cell, single-sample pH detection cell, single-sample liquid inlet microfluidic channel, and single-sample ventilation microfluidic channel are all located within the microfluidic chip, while the single-sample liquid inlet and single-sample ventilation ports are both located on the microfluidic chip. Both the single-sample formaldehyde detection pool and the single-sample pH detection pool are connected to one end of the single-sample liquid inlet microfluidic channel, and the other end of the single-sample liquid inlet microfluidic channel is connected to the single-sample liquid inlet. One of the single-sample ventilation microfluidic channels is connected between one single-sample ventilation port and the single-sample formaldehyde detection pool, and the other single-sample ventilation microfluidic channel is connected between the other single-sample ventilation port and the single-sample pH detection pool. The single-sample formaldehyde detection pool is used to be set opposite to the photoelectric light source and the light intensity sensor, and the single-sample pH detection pool is used to be set opposite to the color camera.

6. The integrated formaldehyde and pH value detection device for textiles according to claim 4, characterized in that: The microfluidic chip is equipped with several multi-sample detection units arranged in a circular array around the axis of the microfluidic chip. Each multi-sample detection unit includes a multi-sample liquid inlet, a multi-sample air outlet, a set of multi-sample storage tanks, a multi-sample interconnecting microfluidic channel, a set of multi-sample liquid inlet microfluidic channels, a multi-sample formaldehyde detection tank, and a multi-sample pH detection tank. The multi-sample storage tank, the multi-sample interconnecting microfluidic channel, the multi-sample liquid inlet microfluidic channel, the multi-sample formaldehyde detection tank, and the multi-sample pH detection tank are all located within the microfluidic chip. The multi-sample liquid inlet and the multi-sample air outlet... All components are mounted on a microfluidic chip. The multi-sample inlet and multi-sample vent are both connected to a multi-sample storage tank. The multi-sample connecting microfluidic channels are connected between the multi-sample storage tanks. One of the multi-sample inlet microfluidic channels is connected between one of the multi-sample storage tanks and a multi-sample formaldehyde detection tank, and the other multi-sample inlet microfluidic channel is connected between another multi-sample storage tank and a multi-sample pH detection tank. The multi-sample formaldehyde detection tank is positioned opposite to the photoelectric light source and the light intensity sensor, and the multi-sample pH detection tank is positioned opposite to the color camera.

7. The integrated detection device for formaldehyde and pH value of textiles according to claim 1, characterized in that: The transposition assembly includes a transposition ring seat, a transposition motor, a transposition worm wheel, and a transposition worm. The transposition ring seat is sleeved on the light intensity sensor, with its bottom rotatably connected to the base and its top fixedly connected to a connecting ring seat. The transposition worm wheel is sleeved on the transposition ring seat and fixedly connected to it. The transposition motor is fixedly mounted on the base, and the transposition worm is fixedly connected to its output shaft. The transposition worm wheel and the transposition worm mesh with each other.

8. The integrated detection device for formaldehyde and pH value of textiles according to claim 1, characterized in that: The centrifugal assembly includes a centrifugal ring seat, a centrifugal motor, a drive gear, and a transmission gear. The centrifugal ring seat is sleeved on the light intensity sensor. The bottom of the centrifugal ring seat is rotatably connected to the top of the connecting ring seat. The top of the centrifugal ring seat is fixedly connected to the bracket. The transmission gear is sleeved on the centrifugal ring seat and fixedly connected to the centrifugal ring seat. The centrifugal motor is fixedly mounted on the connecting ring seat. The drive gear is fixedly connected to the output shaft of the centrifugal motor. The drive gear and the transmission gear mesh with each other.

9. The integrated formaldehyde and pH value detection device for textiles according to claim 8, characterized in that: A first retaining ring is fitted onto the output shaft of the centrifugal motor, and the first retaining ring is fixedly connected to the output shaft of the centrifugal motor. The outer wall of the first retaining ring is provided with a plurality of first teeth. A centrifugal piston cylinder is fixedly installed on the connecting ring seat. A second retaining block is fixedly installed on the output shaft of the centrifugal piston cylinder. The second retaining block is provided with a plurality of second teeth, and the second teeth mesh with the first teeth.

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