A fabric performance testing device

Abstract

The present invention discloses a fabric performance testing device, comprising: a shell; a water storage chamber, which is opened inside the shell and stores water for subsequent pressurization testing; a test port, which is located above the water storage chamber and is connected to the water storage chamber; a fixed plate, which is arranged in an adjustable manner in the shell and is located directly above the test port, and is used to fix the fabric sample above the test port; a pressure plate, which is sealed and slidably arranged inside the water storage chamber; a guide column, which is fixedly arranged inside the water storage chamber, and its top is flush with the upper end of the test port; a guide hole, which is vertically opened inside the guide column and is coaxially arranged with the guide column. After the fabric sample is fixed, the present invention forms rotating bubbles on the water level during the process of pressurizing water, and moves around under the centrifugal effect. Under sufficient centrifugal force, the bubbles will move away from the test port along the slope that is inclined downward, thereby ensuring that one side of the tested fabric sample is completely in contact with water, eliminating the influence of air, and accurately testing.

Description

Technical Field

[0001] The invention relates to the technical field of fabric property analysis, and in particular to a fabric performance testing device. Background Art

[0002] Fabric testing is the process of evaluating and inspecting the quality and performance of fabrics. The core content mainly includes the testing of the physical properties, chemical properties, visual appearance and environmental adaptability of fabrics.

[0003] For fabrics that make up clothing such as raincoats and jackets, their waterproof performance is extremely important. They are usually tested using a hydrostatic pressure tester. The fabric is fixed on the hydrostatic pressure tester, and the water pressure is slowly increased on one side of the fabric until water droplets appear on the other side of the fabric. The water pressure value at this time is recorded. The higher the water pressure value, the better the waterproofness of the fabric. Specifically, during the fabric placement stage before the test, the fabric to be tested will be cut into samples of suitable size, and water will be added to the hydrostatic pressure tester until the water level is flush with the test port, then the water addition will be stopped. The fabric sample will be slid across the water surface facing the test port, and then the fabric sample located above the test port will be clamped tightly, and then the water body inside the hydrostatic pressure tester will be slowly pressurized to increase the water pressure until water droplets appear on the other side of the fabric.

[0004] However, in the operation of sliding the fabric sample against the water surface, the operation of sliding across the water surface is mostly performed manually. Since the fabrics are mostly opaque materials, it is impossible to observe through the fabric sample whether the side of the fabric sample in contact with the water still contains bubbles. If so, the test will be erroneous and inaccurate. Summary of the invention

[0005] The purpose of the present invention is to provide a fabric performance testing device to eliminate the test error caused by bubbles generated by manual operation errors when placing fabric samples.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A fabric performance testing device, comprising:

[0008] case;

[0009] A water storage chamber is provided inside the shell to store water for subsequent pressure testing;

[0010] A test port, located above the water storage chamber and communicated with the water storage chamber;

[0011] A fixing plate is adjustably arranged on the housing and located directly above the test port, and is used to fix the fabric sample above the test port;

[0012] A pressure plate is sealingly and slidably arranged inside the water storage chamber;

[0013] The guide column is fixedly arranged inside the water storage chamber, and its top end is flush with the upper end of the test port;

[0014] The diversion hole is vertically opened inside the diversion column and is coaxially arranged with the diversion column, the bottom of the diversion hole is flush with the bottom end of the diversion column, and the top of the diversion hole is flush with the top end of the diversion column;

[0015] At least one inclined hole is provided on the guide column in an inclined manner, and its two ends are respectively connected with the guide hole and the test port, and the virtual central axis of the inclined hole does not intersect with the virtual central axis of the guide hole;

[0016] Among them, the test port has an upper end and a lower end, so that the diameter of the upper end is smaller than the diameter of the lower end, and a downward inclined slope is formed around the inner wall of the test port, driving the pressure plate to move upward inside the water storage chamber to apply pressure to the water. The water inside the water storage chamber splashes out through the diversion holes and the inclined holes in turn, forming bubbles at the water level and rotating. The bubbles are pushed away from the test port along the downward inclined slope by centrifugal action.

[0017] Preferably, the shell includes a bottom and a top, a threaded hole is provided on the top, a threaded rod is threadedly connected to the threaded hole, a driving disk is fixed on the top of the threaded rod, a rocker is arranged on the driving disk, and a fixed disk is fixedly arranged at the bottom of the threaded rod.

[0018] Preferably, a hydraulic cylinder is installed in the bottom of the shell, and the output shaft of the hydraulic cylinder extends into the water storage chamber and is fixedly connected to the pressure plate coaxially.

[0019] Preferably, a first fixing ring is fixedly connected to the inside of the water storage chamber, the fixing ring is fixedly connected to multiple connecting plates, the multiple connecting plates are fixedly connected to the same second fixing ring, the second fixing ring is sleeved on the outer wall of the guide column, the outer wall of the guide column is fixedly sleeved on a limiting ring, the inner ring of the second fixing ring is provided with a limiting groove adapted to the limiting ring, and the limiting ring is clamped in the limiting groove.

[0020] Preferably, a spiral groove is provided on the outer wall of the guide column, and a cover plate is fixedly connected to the inside of the water storage chamber. The cover plate is located above the pressure plate, and the center of the cover plate is sealingly and slidingly connected to the driving cylinder. The bottom of the driving cylinder is fixedly connected to the pressure plate, and a small hole is provided at the bottom of the driving cylinder. At least one protrusion extends from the inner circle of the driving cylinder, and the protrusion is adapted to engage with the spiral groove.

[0021] Preferably, a plurality of flow plates are fixedly connected to the outer wall of the guide column, and the flow plates can rotate synchronously in the same direction according to the rotation of the guide column.

[0022] Preferably, a baffle ring is fixedly connected inside the water storage chamber, and the diameter of the upper end of the baffle ring is smaller than the diameter of the lower end of the baffle ring, so that the inner and outer rings of the baffle ring form a downwardly inclined slope, so that the bubbles away from the test port enter the range of the outer ring of the baffle ring from the range of the inner ring of the baffle ring under the guidance of the slope of the baffle ring.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] After the fabric sample is fixed, the present invention forms rotating bubbles on the water level during the process of pressurizing water. The bubbles move around under the centrifugal effect. Under sufficient centrifugal force, the bubbles will move away from the test port along the downward slope, thereby ensuring that one side of the tested fabric sample is completely in contact with water, eliminating the influence of air, and achieving accurate testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a fabric performance testing device proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of a spiral rod and a structure connected thereto in a fabric performance testing device proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the interior of a water storage chamber in a fabric performance testing device proposed by the present invention;

[0028] Figure 4 This is a schematic cross-sectional structure diagram of the bottom portion of a shell in a fabric performance testing device proposed by the present invention;

[0029] Figure 5 It is a cross-sectional schematic diagram of the connection structure between the first fixing ring and the driving cylinder in a fabric performance testing device proposed by the present invention;

[0030] Figure 6 This is a schematic diagram of the cross-section structure of a driving cylinder in a fabric performance testing device proposed by the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of a guide column in a fabric performance testing device proposed in the present invention, viewed from above.

[0032] In the figure: 1. shell; 2. water storage chamber; 3. test port; 4. fixing plate; 5. pressure plate; 6. guide column; 7. guide hole; 8. inclined hole; 9. threaded hole; 10. threaded rod; 11. drive plate; 12. rocker; 13. hydraulic cylinder; 14. first fixing ring; 15. connecting plate; 16. second fixing ring; 17. limiting ring; 18. limiting groove; 19. spiral groove; 20. drive cylinder; 21. protrusion; 22. flow plate; 23. retaining ring; 24. display screen; 25. control button; 26. drainage channel; 27. cover plate; 28. small hole. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Reference Figure 1 -Attached Figure 7 , a fabric performance testing device, comprising:

[0035] Shell 1;

[0036] The water storage chamber 2 is provided inside the housing 1 and stores water for subsequent pressure testing;

[0037] A test port 3 is located above the water storage chamber 2 and communicated with the water storage chamber 2;

[0038] A fixing plate 4 is adjustably arranged on the housing 1 and located directly above the test port 3, and is used to fix the fabric sample above the test port 3;

[0039] A pressure plate 5 is sealingly and slidably disposed inside the water storage chamber 2;

[0040] The guide column 6 is fixedly arranged inside the water storage chamber 2, and its top end is flush with the upper end of the test port 3;

[0041] The guide hole 7 is vertically opened inside the guide column 6 and is coaxially arranged with the guide column 6. The bottom of the guide hole 7 is flush with the bottom end of the guide column 6, and the top of the guide hole 7 is flush with the top end of the guide column 6.

[0042] At least one inclined hole 8 is provided on the guide column 6 in an inclined manner, and its two ends are respectively connected with the guide hole 7 and the test port 3, and the virtual central axis of the inclined hole 8 does not intersect with the virtual central axis of the guide hole 7;

[0043] Among them, the test port 3 has an upper end and a lower end, so that the diameter of the upper end is smaller than the diameter of the lower end, and a downward sloping surface is formed around the inner wall of the test port 3, driving the pressure plate 5 to move upward inside the water storage chamber 2 to apply pressure to the water, and the water inside the water storage chamber 2 splashes out through the guide hole 7 and the inclined hole 8 in turn, forming bubbles at the water level and rotating. The bubbles are pushed away from the test port 3 along the downward sloping surface by centrifugal action.

[0044] Through the above technical solution, after the fabric sample is fixed, during the process of pressurizing the water, rotating bubbles are formed on the water level, and move around under the centrifugal effect. Under sufficient centrifugal force, the bubbles will move away from the test port 3 along the downward slope, thereby ensuring that one side of the tested fabric sample is completely in contact with water, eliminating the influence of air, and accurately testing.

[0045] The shell 1 includes a bottom and a top, and a threaded hole 9 is provided on the top, and a threaded rod 10 is threadedly connected to the threaded hole 9. A driving disk 11 is fixed on the top of the threaded rod 10, and a rocker 12 is arranged on the driving disk 11. The fixed disk 4 is fixedly arranged at the bottom of the threaded rod 10. The threaded rod 10 is moved up and down by rotating the driving disk 11, thereby controlling the fixed disk 4 to be clamped above the test port 3.

[0046] A hydraulic cylinder 13 is installed in the shell 1, and the output shaft of the hydraulic cylinder 13 extends into the water storage chamber 2 and is fixedly connected to the pressure plate 5 coaxially, so as to control the height of the pressure plate 5 inside the water storage chamber 2, thereby controlling the pressure applied to the water in the water storage chamber 2.

[0047] A first fixing ring 14 is fixedly connected inside the water storage chamber 2, and a plurality of connecting plates 15 are fixedly connected to the fixing ring. The plurality of connecting plates 15 are fixedly connected to the same second fixing ring 16. The second fixing ring 16 is sleeved on the outer wall of the guide column 6. A limiting ring 17 is fixedly sleeved on the outer wall of the guide column 6. A limiting groove 18 matching the limiting ring 17 is provided on the inner circle of the second fixing ring 16, and the limiting ring 17 is stuck in the limiting groove 18.

[0048] A spiral groove 19 is provided on the outer wall of the guide column 6, and a cover plate 27 is fixedly connected inside the water storage chamber 2. The cover plate 27 is located above the pressure plate 5. The center of the cover plate 27 is sealingly and slidingly connected to the driving cylinder 20. The bottom of the driving cylinder 20 is fixedly connected to the pressure plate 5, and a small hole 28 is provided at the bottom of the driving cylinder 20. At least one protrusion 21 extends from the inner circle of the driving cylinder 20. The protrusion 21 is adapted to be snap-fitted into contact with the spiral groove 19. When the pressure plate 5 moves up and down, the water between the pressure plate 5 and the cover plate 27 can be pressurized. At the same time, the protrusion 21 applies a force to the guide column 6, so that the guide column 6 rotates accordingly according to the guidance of the spiral groove 19.

[0049] A plurality of flow plates 22 are also fixedly connected to the outer wall of the guide column 6. The flow plates 22 can rotate synchronously in the same direction according to the rotation of the guide column 6, thereby accelerating the rotational flow of water inside the water storage chamber 2 and making the centrifugal effect more significant.

[0050] A baffle ring 23 is also fixedly connected inside the water storage chamber 2. The diameter of the upper end of the baffle ring 23 is smaller than the diameter of the lower end of the baffle ring 23, so that the inner and outer rings of the baffle ring 23 form a slope inclined downward, so that the bubbles away from the test port 3 enter the range of the outer ring of the baffle ring 23 from the range of the inner ring of the baffle ring 23 according to the guidance of the slope of the baffle ring 23, and the bubbles cannot return, thereby playing a blocking role;

[0051] It should be noted that the threaded connection between the threaded hole 9 and the threaded rod 10 has a self-locking function, which is a conventional technology and will not be described in detail here;

[0052] In the water adding stage, the test equipment can use a water container to add water into the water storage chamber 2 through the test port 3, specifically, add water into the guide hole 7 at the center of the guide column 6;

[0053] The test equipment also has a display screen 24 and control buttons 25, which display the water pressure value transmitted by the pressure sensor, test time and other parameters. The display screen 24 usually uses digital display, which is clear and intuitive, and is convenient for operators to read data, and is used to set test parameters and control the test process. It includes functions such as starting the test, stopping the test, adjusting the pressure rise rate, setting the test time, etc., which are conventional structures and technologies and will not be described in detail here;

[0054] The test equipment also has a drainage system, which is a drainage channel 26 and a drainage valve arranged in the drainage channel 26. The operator can easily open the valve to drain the water, ensuring smooth drainage and avoiding water accumulation affecting the next test. This is a conventional technology and will not be described in detail here.

[0055] The drawings only show the drainage channel 26, and the drainage valve is not shown. However, the connection between the drainage valve and the drainage channel 26 and the drainage control are prior arts, and will not be described in detail here.

[0056] In order to show the clarity in the drawings, the upper and lower parts of the housing 1 are shown separately, and the communication connection between the top and bottom of the housing 1 is drawn, such as the connection between the display screen 24 at the top of the housing 1 and the pressure sensor at the bottom of the housing 1, but they are all prior art and will not be described in detail here;

[0057] Reference Figure 7 When the pressure plate 5 moves upward to pressurize the water, the flow plate 22 rotates and the water is discharged from the inclined hole 8, and the rotating water flow formed by the two has the same direction;

[0058] Reference Figure 5 and attached Figure 6 The protrusion 21 is approximately semicircular in shape. The protrusion 21 is in linear contact with the outer wall of the guide column 6 in the spiral groove 19, and the sliding friction is small. While ensuring that the protrusion 21 does not rotate and only moves up and down in the vertical direction, the power source torque provided will cause the guide column 6 with the spiral groove 19 to rotate accordingly.

[0059] Working principle:

[0060] When placing the fabric before the test, the fabric to be tested will be cut into samples of suitable size. The sample size needs to completely cover the test port 3 and be fully compressed by the fixed plate 4.

[0061] Add water to the hydrostatic pressure tester until the water level is flush with the test port 3, then stop adding water, slide the fabric sample over the water surface facing the test port 3, and then rotate the drive disk 11 to move the threaded rod 10 downward, and press the fabric sample down through the fixed disk 4 to complete the fastening of the fabric sample on the test port 3;

[0062] In the water pressurization stage, the hydraulic cylinder 13 is started to drive the pressure plate 5 to move upward, and the water in the water storage chamber 2 is squeezed through the small hole 28 into the inside of the guide column 6, and discharged through a plurality of inclined holes 8 arranged obliquely, forming a rotating water flow in the water area near the fabric sample and the test port 3, so that the bubbles are dispersed to the surroundings by the centrifugal effect of the rotating water flow;

[0063] The bubbles dispersed to the surroundings are guided by the inclined slope of the inner wall of the test port 3, away from the test port 3 and enter the water storage chamber 2, and then guided by the inclined slope of the baffle ring 23, from the inner circle of the baffle ring 23 to the outer circle of the baffle ring 23, thereby preventing the bubbles from contacting the fabric sample.

[0064] The present invention is conceived to:

[0065] In view of the problem that the fabric sample slides against the water surface of the test port 3 during the fabric waterproof test, the operator may make mistakes in manual operation, resulting in the existence of bubbles and being unable to observe and discover the existence of bubbles, in the stage of applying water pressure, the water squeezed out through the inclined hole 8 is discharged from the test port 3 in the inclined direction to form a rotating water flow, and the bubbles are scattered around due to the centrifugal effect, and when touching the inclined slope, they move downward according to the guidance of the slope and away from the test port 3, preventing the bubbles from contacting the fabric sample during the waterproof test and causing inaccurate testing;

[0066] In the waterproof test, due to the continuous pressure on the water, the bubbles in the water will be extremely unstable and move violently, and the bubbles will easily move to the test port 3 again. By setting the retaining ring 23, the bubbles are transferred to the periphery of the retaining ring 23, and the movement range of the bubbles is limited by relying on the buoyancy of the bubbles in the water and the inclined obstruction of the periphery of the retaining ring 23, so as to prevent the bubbles from contacting the fabric sample during the waterproof test, thereby causing inaccurate testing.

[0067] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fabric performance testing device, characterized in that: include: Housing (1); A water storage chamber (2) is provided inside the housing (1) and stores water for subsequent pressure testing; A test port (3) located above the water storage chamber (2) and connected to the water storage chamber (2); A fixing plate (4) is adjustably arranged on the housing (1) and located directly above the test port (3), and is used to fix the fabric sample above the test port (3); A pressure plate (5) is sealingly and slidably disposed inside the water storage chamber (2); A guide column (6) is fixedly arranged inside the water storage chamber (2), and its top end is flush with the upper end of the test port (3); The guide hole (7) is vertically opened inside the guide column (6) and is coaxially arranged with the guide column (6), the bottom of the guide hole (7) is flush with the bottom end of the guide column (6), and the top of the guide hole (7) is flush with the top end of the guide column (6); At least one inclined hole (8) is provided on the guide column (6) in an inclined manner, and its two ends are respectively connected to the guide hole (7) and the test port (3), and the virtual central axis of the inclined hole (8) does not intersect with the virtual central axis of the guide hole (7); The test port (3) has an upper end and a lower end, the diameter of the upper end is smaller than the diameter of the lower end, and a downwardly inclined slope is formed around the inner wall of the test port (3). The pressure plate (5) is driven to move upward inside the water storage chamber (2) to apply pressure to the water. The water inside the water storage chamber (2) splashes out through the guide hole (7) and the inclined hole (8) in sequence, forming bubbles at the water level and rotating. The bubbles are pushed away from the test port (3) along the downwardly inclined slope by centrifugal action.

2. A fabric performance testing device according to claim 1, characterized in that: The housing (1) comprises a bottom and a top, a threaded hole (9) is provided on the top, a threaded rod (10) is threadedly connected to the threaded hole (9), a driving disk (11) is fixed to the top of the threaded rod (10), a rocker (12) is arranged on the driving disk (11), and a fixed disk (4) is fixedly arranged on the bottom of the threaded rod (10).

3. A fabric performance testing device according to claim 2, characterized in that: A hydraulic cylinder (13) is installed in the bottom of the housing (1), and an output shaft of the hydraulic cylinder (13) extends into the water storage chamber (2) and is fixedly connected to the pressure plate (5) coaxially.

4. A fabric performance testing device according to claim 1, characterized in that: A first fixing ring (14) is fixedly connected to the inside of the water storage chamber (2), the fixing ring is fixedly connected to a plurality of connecting plates (15), the plurality of connecting plates (15) are fixedly connected to a second fixing ring (16), the second fixing ring (16) is sleeved on the outer wall of the guide column (6), the outer wall of the guide column (6) is fixedly sleeved on a limiting ring (17), the inner ring of the second fixing ring (16) is provided with a limiting groove (18) adapted to the limiting ring (17), and the limiting ring (17) is clamped inside the limiting groove (18).

5. The fabric performance testing device according to claim 1, characterized in that: A spiral groove (19) is provided on the outer wall of the guide column (6), and a cover plate (27) is fixedly connected to the inside of the water storage chamber (2). The cover plate (27) is located above the pressure plate (5). The center of the cover plate (27) is sealingly and slidably connected to the drive cylinder (20). The bottom of the drive cylinder (20) is fixedly connected to the pressure plate (5), and a small hole (28) is provided at the bottom of the drive cylinder (20). At least one protrusion (21) extends from the inner ring of the drive cylinder (20), and the protrusion (21) is adapted to be snap-fitted and contacted with the spiral groove (19).

6. A fabric performance testing device according to claim 1, characterized in that: A plurality of flow plates (22) are also fixedly connected to the outer wall of the guide column (6), and the flow plates (22) are capable of synchronously rotating in the same direction according to the rotation of the guide column (6).

7. A fabric performance testing device according to claim 1, characterized in that: A baffle ring (23) is also fixedly connected inside the water storage chamber (2), and the diameter of the upper end of the baffle ring (23) is smaller than the diameter of the lower end of the baffle ring (23), so that the inner ring and the outer ring of the baffle ring (23) both form a slope inclined downward, so that bubbles away from the test port (3) enter the range of the outer ring of the baffle ring (23) from the range of the inner ring of the baffle ring (23) under the guidance of the slope of the baffle ring (23).

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