A kind of acid-base test device for fabric protective clothing

Abstract

The present invention discloses an acid-base experimental testing device for fabric protective clothing, which specifically relates to the technical field of fabric protective clothing testing, and comprises: a testing platform, a fixing frame is fixed on one side of the top of the testing platform, and a lower electrode plate is arranged in the middle of the top of the testing platform, a lifting assembly is arranged on the top of the fixing frame, and an upper electrode plate is connected to the output end of the lifting assembly near the upper part of the lower electrode plate, and a through hole is opened in the middle of the upper electrode plate. The present invention arranges a support seat above the through hole, and a plurality of groups of dripping tubes are arranged in an annular array at the bottom of the support seat, and with the cooperation of structures such as a slideway, a movable column and a transmission mechanism, the plurality of groups of annularly distributed dripping tubes can be controlled to reciprocate inward and outward, so that the acid or alkali liquid flowing out of the dripping tube is evenly scattered and distributed on the fabric protective clothing sample in the through hole, thereby avoiding the concentrated impact of the acid or alkali liquid on the fabric protective clothing sample, and greatly improving the accuracy of the experimental test results.

Description

Technical Field

[0001] The invention relates to the technical field of fabric protective clothing testing, and in particular to an acid-base experimental testing device for fabric protective clothing. Background Art

[0002] Protective clothing includes fire protection clothing, industrial protective clothing, medical protective clothing, military protective clothing and protective clothing for special groups. It is mainly used in industries and departments such as fire protection, military industry, shipbuilding, petroleum, chemical industry, painting, cleaning and disinfection, and laboratories. There are many types of manufacturing materials, such as natural materials such as cotton, wool, silk, lead, and synthetic materials such as rubber, plastic, resin, and synthetic fiber. Among them, fabric protective clothing is a protective clothing made of flat soft pieces formed by crossing, entanglement, and connection of small and soft objects. In order to ensure the safety of workers wearing fabric protective clothing during chemical experiments, it is often necessary to conduct acid and alkali experiments.

[0003] In a Chinese patent with the announcement number "CN 116840127 B", a device for testing the acid and alkali penetration time of fabric protective clothing is disclosed. The device is described as "by opening a liquid injection hole at the top of the upper electrode group, and introducing the acid or alkali solution quantitatively stored in the liquid outlet valve tube into the dropper, using the time difference of the flow of the acid or alkali solution, the acid or alkali solution is made to drip onto the protective clothing sample at the liquid injection hole along the conductive wire after the protective clothing sample is pressed by the upper electrode group. The liquid injection hole limits the acid or alkali solution to the protective clothing sample within its range for the penetration time test, and the texture of the protective clothing sample at the liquid injection hole is not squeezed and deformed. , thereby avoiding the deformation of the textile texture when the upper and lower electrodes of the existing test device squeeze the sample. "However, in actual use, although the liquid injection hole limits the diffusion range of the acid or alkali solution, the acid or alkali solution flowing out of the dropper drips in a straight line along the vertical conductive wire onto the fabric protective clothing sample, and its natural flow diffusion effect is poor. Under the impact of continuous concentrated dripping, it is easy to cause the acid or alkali solution to directly penetrate the weaving texture of the fabric, and the acid or alkali solution cannot be evenly distributed and penetrated, which greatly affects the accuracy of the experimental test results. Summary of the invention

[0004] The object of the present invention is to provide an acid-base experimental testing device for fabric protective clothing. A support seat is arranged above a through hole, and a plurality of groups of dripping tubes are arranged in a circular array at the bottom of the support seat. With the cooperation of structures such as a slideway, a movable column and a transmission mechanism, the plurality of groups of annularly distributed dripping tubes can be controlled to reciprocate inward and outward, so that the acid or alkali solution flowing out of the dripping tube is evenly scattered and distributed on the fabric protective clothing sample in the through hole, thereby avoiding the concentrated impact of the acid or alkali solution on the fabric protective clothing sample, greatly improving the accuracy of the experimental test results, and solving the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a fabric protective clothing acid-base test device, comprising:

[0006] A test bench, wherein a fixing frame is fixed on one side of the top of the test bench, and a lower electrode plate is arranged in the middle of the top of the test bench, a lifting assembly is arranged on the top of the fixing frame, an upper electrode plate is connected to the output end of the lifting assembly near the upper side of the lower electrode plate, a through hole is opened in the middle of the upper electrode plate, and a pH probe is embedded on the bottom side of the upper electrode plate;

[0007] A support seat, wherein the support seat is arranged at the inner top end of the fixed frame, and the support seat is located above the through hole, a support frame is fixed on the top of the support seat, the top of the support frame is connected to a liquid storage tank, and the bottom end of the liquid storage tank is connected to multiple infusion hoses through a control valve, multiple slides are opened in a circular array on both sides of the support seat, and a movable column is connected through the upper and lower slides, a drip tube is connected through the movable column, and the top of the drip tube is connected to the infusion hose, a transmission mechanism is provided in the support seat, and the transmission mechanism is used to drive multiple movable columns to move synchronously, and a distance adjustment mechanism is provided between the support seat and the fixed frame.

[0008] Preferably, the lifting assembly includes a hydraulic cylinder fixed to one end of the top of the fixing frame, the output end of the hydraulic cylinder passes through the fixing frame and is fixedly connected to the upper pole plate, and a guide assembly is provided between the upper pole plate and the fixing frame.

[0009] Preferably, the guide assembly includes a slide groove opened on the inner side of the fixing frame, a slider is fixed to one end of the upper pole plate, and the slider is slidably fitted in the slide groove.

[0010] Preferably, the transmission mechanism includes a cavity opened in the support seat, the interior of the cavity is provided with a plurality of screws in a ring array through bearings, the screws are alternately distributed with movable columns, and the outer walls of the screws are screwed with movable blocks through threads, the movable blocks are fixedly connected to the movable columns, and the ends of the plurality of screws are fixed with second gears, a support ring is rotatably installed inside the cavity near the bottom of the second gear, a gear ring meshing with the second gear is fixed on the top side of the support ring, a limit assembly is provided on the support ring, a second motor is fixed to the side wall of the support seat, and the output end of the second motor extends into the cavity and is connected to one of the screws.

[0011] Preferably, the limiting assembly includes a plurality of limiting columns fixed on the outside of the support ring, and the inner side of the support seat is provided with limiting grooves matching the limiting columns.

[0012] Preferably, the distance adjustment mechanism includes a fixing plate symmetrically fixed on both sides of the support seat, guide grooves facing the fixing plates are symmetrically opened on both sides of the top of the fixing frame, cross guide columns are connected through the insides of the two guide grooves, the bottom ends of the cross guide columns are fixedly connected to the fixing plates, and a driving assembly is provided on the top side of the fixing frame, and the driving assembly is used to drive the cross guide columns to move.

[0013] Preferably, the driving assembly includes a first motor fixed to the top of the fixing frame near one side of the cross guide column, wherein a side wall of one of the cross guide columns is connected to a toothed plate, and a first gear meshing with the toothed plate is fixed to the output end of the first motor.

[0014] Preferably, baffles are fixed to the top ends of the two cross guide pillars.

[0015] Preferably, a socket is provided inside the movable column, an internal bottom end of the socket is provided with an internal thread section, an outer wall of the dropper tube is provided with an external thread section matching the internal thread section, and a retaining ring is fixed to the top of the dropper tube.

[0016] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0017] 1. By arranging a support seat above the through hole, a plurality of groups of dripping tubes are arranged in a circular array at the bottom of the support seat, and with the cooperation of structures such as a slideway, a movable column and a transmission mechanism, the plurality of groups of annularly distributed dripping tubes can be controlled to reciprocate inward and outward, so that the acid or alkali solution flowing out of the dripping tube is evenly scattered on the fabric protective clothing sample in the through hole, thereby avoiding the concentrated impact of the acid or alkali solution on the fabric protective clothing sample, and greatly improving the accuracy of the experimental test results.

[0018] 2. By setting a distance adjusting mechanism between the support seat and the fixed frame, and the distance adjusting mechanism is composed of a cross guide column, a guide groove and a driving assembly, the driving assembly can drive the cross guide column to drive the support seat to move up and down, so that the support seat drives each dropper to rise and fall stably, and then the height of the dropper can be adjusted according to demand to change the dripping height of the acid or alkali solution, further enriching the experimental data and greatly improving the use effect of the device.

[0019] 3. By setting the jack, the retaining ring, the internal thread section and the external thread section, the dropper can be quickly and stably plugged and fixed on the movable column. Conversely, the dropper can be removed from the movable column, thereby facilitating the disassembly and maintenance of the components, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0022] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the fixing frame of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the upper electrode plate of the present invention when viewed from above;

[0025] Figure 5 This is a schematic diagram of the connection structure of the support seat, the liquid storage tank and the cross guide column of the present invention;

[0026] Figure 6 This is the second schematic diagram of the connection structure of the support seat, the liquid storage tank and the cross guide column of the present invention;

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the cross guide column and the tooth plate of the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the support base of the present invention;

[0029] Fig. 9 is a transverse cross-sectional view of the support seat of the present invention;

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the support ring of the present invention when viewed from above;

[0031] Fig.11 It is a schematic diagram of the connection structure between the movable column and the dripping tube of the present invention;

[0032] Fig.12 It is a schematic diagram of the three-dimensional structure of the movable column of the present invention;

[0033] Fig.13 It is a longitudinal cross-sectional view of the movable column of the present invention;

[0034] Fig.14 It is a schematic diagram of the three-dimensional structure of the dropper of the present invention.

[0035] Description of reference numerals:

[0036] 1. Test table; 2. Fixing frame; 3. Lower electrode plate; 4. Upper electrode plate; 5. Through hole; 6. Hydraulic cylinder; 7. Sliding block; 8. Slide groove; 9. Support seat; 10. Dropping tube; 11. Support frame; 12. Liquid storage tank; 13. Fixing plate; 14. Cross guide column; 15. Baffle plate; 16. Guide groove; 17. Tooth plate; 18. First motor; 19. First gear; 20. PH probe; 21. Infusion hose; 22. Cavity groove; 23. Slideway; 24. Movable column; 25. Screw rod; 26. Movable block; 27. Second gear; 28. Support ring; 29. ​​Tooth ring; 30. Limiting column; 31. Limiting groove; 32. Socket; 33. Internal thread section; 34. External thread section; 35. Baffle ring; 36. Second motor. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] The present invention provides Figure 1-Figure 10 The acid-base test device for fabric protective clothing shown in the figure comprises:

[0039] A test bench 1, a fixing frame 2 is fixed on one side of the top of the test bench 1, and a lower electrode plate 3 is arranged in the middle of the top of the test bench 1, a lifting assembly is arranged on the top of the fixing frame 2, an upper electrode plate 4 is connected to the output end of the lifting assembly near the upper side of the lower electrode plate 3, a through hole 5 is opened in the middle of the upper electrode plate 4, and a PH probe 20 is embedded on the bottom side of the upper electrode plate 4;

[0040] The lifting assembly includes a hydraulic cylinder 6 fixed to one end of the top of the fixing frame 2 , the output end of the hydraulic cylinder 6 passes through the fixing frame 2 and is fixedly connected to the upper pole plate 4 , and a guide assembly is provided between the upper pole plate 4 and the fixing frame 2 .

[0041] The guide assembly includes a slide groove 8 provided on the inner side of the fixing frame 2 . A slider 7 is fixed to one end of the upper pole plate 4 , and the slider 7 is slidably fitted in the slide groove 8 .

[0042] The upper electrode plate 4 is driven to move by the hydraulic cylinder 6, so that the upper electrode plate 4 can drive the slider 7 to slide in the slide groove 8. When the fabric protective clothing sample is placed on the lower electrode plate 3, the upper electrode plate 4 can be controlled to descend, so that the fabric protective clothing sample can be attached between the upper electrode plate 4 and the lower electrode plate 3;

[0043] Then, the acid or alkali liquid can be dropped from the through hole 5 of the upper electrode plate 4 onto the fabric protective clothing sample. Since the upper electrode plate 4 and the lower electrode plate 3 are electrically connected to the detection platform 1, and the detection platform 1 adopts the detection host disclosed in the patent document of a fabric protective clothing acid and alkali penetration time testing device with announcement number CN 116840127B, and with the cooperation of structures such as the PH probe 20, the time for the acid and alkali to penetrate the fabric protective clothing sample can be detected, and it can be displayed on the control display on the detection host.

[0044] The support seat 9 is arranged at the inner top end of the fixed frame 2, and the support seat 9 is located above the through hole 5. A support frame 11 is fixed on the top of the support seat 9. The top of the support frame 11 is connected to a liquid storage tank 12. The bottom end of the liquid storage tank 12 is connected to multiple infusion hoses 21 through a control valve. Multiple slideways 23 are opened in a circular array on both sides of the support seat 9, and a movable column 24 is connected between the upper and lower slideways 23. A dropper 10 is connected inside the movable column 24, and the top of the dropper 10 is connected to the infusion hose 21. A transmission mechanism is provided in the support seat 9. The transmission mechanism is used to drive the multiple movable columns 24 to move synchronously. A distance adjustment mechanism is provided between the support seat 9 and the fixed frame 2.

[0045] The transmission mechanism includes a cavity 22 opened in the support seat 9, and the interior of the cavity 22 is provided with a plurality of screws 25 in a ring array through bearings. The screws 25 are alternately distributed with movable columns 24, and the outer walls of the screws 25 are screwed with movable blocks 26 through threads, and the movable blocks 26 are fixedly connected to the movable columns 24. The ends of the plurality of screws 25 are all fixed with second gears 27, and a support ring 28 is rotatably installed inside the cavity 22 near the bottom of the second gear 27. A gear ring 29 meshing with the second gear 27 is fixed on the top side of the support ring 28, and a limit assembly is provided on the support ring 28. A second motor 36 is fixed to the side wall of the support seat 9, and the output end of the second motor 36 extends into the cavity 22 and is connected to one of the screws 25.

[0046] The limiting assembly includes a plurality of limiting posts 30 fixed to the outside of the support ring 28 , and a limiting groove 31 matching the limiting posts 30 is formed on the inner side of the support seat 9 .

[0047] When the present invention is in use, acid or alkali can be loaded into the liquid storage tank 12, and the control valve at the bottom of the liquid storage tank 12 is controlled to open, so that the acid or alkali can flow into each infusion hose 21, and then flow into the drip tube 10 through the infusion hose 21, and then drip into the through hole 5 below through the drip tube 10, so as to fall on the permeable fabric protective clothing sample, and when dripping into the through hole 5, the second motor 36 can be started to drive the connected screw 25 to rotate, and then the screw 25 drives the second gear 27 to rotate, so that the second gear 27 drives the gear ring 29 to rotate, and then the gear ring 29 drives the support ring 28 in the cavity groove. 22 rotates, and under the transmission of this structure, multiple screws 25 can be driven to rotate synchronously, and then the screws 25 drive the movable block 26 to move, so that the movable block 26 drives the movable column 24 to slide along the slide 23, so that the movable column 24 drives the dropper 10 to move, and under the positive and negative drive of the second motor 36, multiple groups of annularly distributed dropper tubes 10 can reciprocate inward and outward, so that the acid or alkali solution flowing out of the dropper tube 10 is evenly scattered and distributed on the fabric protective clothing sample in the through hole 5, thereby avoiding the concentrated impact of the acid or alkali solution on the fabric protective clothing sample, and greatly improving the accuracy of the experimental test results.

[0048] Specific reference Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, the distance adjustment mechanism includes a fixing plate 13 symmetrically fixed on both sides of the support seat 9, and guide grooves 16 facing the fixing plate 13 are symmetrically opened on both sides of the top of the fixing frame 2, and the insides of the two guide grooves 16 are penetrated and connected with a cross guide column 14, and the bottom end of the cross guide column 14 is fixedly connected to the fixing plate 13, and a driving component is arranged on the top side of the fixing frame 2, and the driving component is used to drive the cross guide column 14 to move.

[0049] The driving assembly includes a first motor 18 fixed to the top of the fixing frame 2 near the cross guide column 14 , wherein a side wall of one of the cross guide columns 14 is connected to a toothed plate 17 , and a first gear 19 meshing with the toothed plate 17 is fixed to the output end of the first motor 18 .

[0050] The first gear 19 is driven to rotate by the second motor 36, so that the first gear 19 drives the toothed plate 17 to move, and then the toothed plate 17 drives the cross guide column 14 to move, so that the cross guide column 14 slides along the guide groove 16, and then the cross guide column 14 drives the fixed plate 13 to move, so that the fixed plate 13 drives the support seat 9 to move, so that the support seat 9 can drive each dropper 10 to rise and fall stably, and then the height of the dropper 10 can be adjusted according to demand to change the dripping height of the acid or alkali solution, further enriching the experimental data and greatly improving the use effect of the device.

[0051] The tops of the two cross guide posts 14 are all fixed with baffle plates 15. By the blocking of baffle plates 15, the cross guide posts 14 can be prevented from breaking away from the guide grooves 16.

[0052] The present invention provides Figure 11-Figure 14 In the acid-base test device for fabric protective clothing shown in the figure, a plug hole 32 is opened inside the movable column 24, an internal bottom end of the plug hole 32 is provided with an internal thread section 33, an outer wall of the dropper tube 10 is provided with an external thread section 34 matching the internal thread section 33, and a retaining ring 35 is fixed to the top of the dropper tube 10.

[0053] By inserting the dropper 10 into the insertion hole 32, and screwing the internal thread section 33 and the external thread section 34 together, and with the blocking of the retaining ring 35, the dropper 10 can be quickly and stably plugged and fixed on the movable column 24, and conversely, the dropper 10 can also be removed from the movable column 24, thereby facilitating the disassembly and maintenance of the components, and the use effect is better.

[0054] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fabric protective clothing acid-base test device, characterized in that: include: A test bench (1), wherein a fixing frame (2) is fixed on one side of the top of the test bench (1), and a lower electrode plate (3) is arranged in the middle of the top of the test bench (1), a lifting assembly is arranged at the top of the fixing frame (2), an upper electrode plate (4) is connected to the output end of the lifting assembly near the top of the lower electrode plate (3), a through hole (5) is opened in the middle of the upper electrode plate (4), and a pH probe (20) is embedded on the bottom side of the upper electrode plate (4); A support seat (9), wherein the support seat (9) is arranged at the inner top end of the fixed frame (2), and the support seat (9) is located above the through hole (5); a support frame (11) is fixed on the top of the support seat (9); the top end of the support frame (11) is connected to a liquid storage tank (12); the bottom end of the liquid storage tank (12) is connected to a plurality of infusion hoses (21) through a control valve; a plurality of slideways (23) are provided on both sides of the support seat (9) in a circular array, and a movable column (24) is connected through the upper and lower slideways (23); a drip tube (10) is connected through the movable column (24), and the top end of the drip tube (10) is connected to the infusion hose (21); a transmission mechanism is provided in the support seat (9), and the transmission mechanism is used to drive the plurality of movable columns (24) to move synchronously; and a distance adjustment mechanism is provided between the support seat (9) and the fixed frame (2); The transmission mechanism comprises a cavity (22) provided in a support seat (9), wherein a plurality of screw rods (25) are arranged in a ring-shaped array inside the cavity (22) through bearings, wherein the screw rods (25) are alternately distributed with movable columns (24), and the outer wall of the screw rods (25) is screwed with a movable block (26) through a thread, wherein the movable block (26) is fixedly connected with the movable column (24), and the ends of the plurality of screw rods (25) are all fixed with a second gear (27), and a support ring (28) is rotatably installed inside the cavity (22) near the bottom of the second gear (27), and a gear ring (29) meshing with the second gear (27) is fixed on the top side of the support ring (28), and a limit assembly is provided on the support ring (28), and a second motor (36) is fixed on the side wall of the support seat (9), and the output end of the second motor (36) extends into the cavity (22) and is connected to one of the screw rods (25); The limiting assembly comprises a plurality of limiting columns (30) fixed on the outside of the support ring (28), and a limiting groove (31) matching the limiting columns (30) is provided on the inside of the support seat (9).

2. The acid-base test device for fabric protective clothing according to claim 1, characterized in that: The lifting assembly comprises a hydraulic cylinder (6) fixed to one end of the top of a fixing frame (2); an output end of the hydraulic cylinder (6) passes through the fixing frame (2) and is fixedly connected to an upper electrode plate (4); and a guide assembly is provided between the upper electrode plate (4) and the fixing frame (2).

3. The acid-base test device for fabric protective clothing according to claim 2, characterized in that: The guide assembly comprises a slide groove (8) provided on the inner side of the fixing frame (2); a slider (7) is fixed to one end of the upper pole plate (4), and the slider (7) is slidably fitted in the slide groove (8).

4. The acid-base test device for fabric protective clothing according to claim 1, characterized in that: The distance adjustment mechanism comprises a fixing plate (13) symmetrically fixed on both sides of the support seat (9); guide grooves (16) facing the fixing plate (13) are symmetrically opened on both sides of the top of the fixing frame (2); a cross guide column (14) is connected through the inside of the two guide grooves (16); the bottom end of the cross guide column (14) is fixedly connected to the fixing plate (13); a driving component is arranged on the top side of the fixing frame (2), and the driving component is used to drive the cross guide column (14) to move.

5. The acid-base test device for fabric protective clothing according to claim 4, characterized in that: The driving assembly comprises a first motor (18) fixed to the top of the fixing frame (2) near one side of the cross guide column (14), wherein a side wall of one of the cross guide columns (14) is connected to a toothed plate (17), and a first gear (19) meshing with the toothed plate (17) is fixed to the output end of the first motor (18).

6. The acid-base test device for fabric protective clothing according to claim 4, characterized in that: A baffle (15) is fixed to the top ends of the two cross guide pillars (14).

7. The acid-base test device for fabric protective clothing according to claim 1, characterized in that: The movable column (24) is provided with an insertion hole (32) inside, the bottom end of the insertion hole (32) is provided with an internal thread section (33), the outer wall of the drip tube (10) is provided with an external thread section (34) matching the internal thread section (33), and a retaining ring (35) is fixed at the top end of the drip tube (10).

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