Water soaking tank structure for textile testing
By designing a combination of inner wall ribs, column and beam support frame, and clamping arm pads for holding the immersion tank, and combining it with a temperature control device, the problems of low test environment control accuracy and unreliable sample fixation in existing textile water immersion test devices have been solved, achieving structural stability and reproducibility of test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO KETAI INSPECTION CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-24
AI Technical Summary
Existing textile water immersion testing devices suffer from problems such as low precision in test environment control, unreliable sample fixation, poor structural stability, and poor reproducibility of test results.
A combined structure including an immersion tank, a support frame, a cover plate, a clamping device, and a temperature control device was designed. The inner wall of the immersion tank is provided with ribs. The support frame adopts a combination of columns and beams. The clamping device achieves stable fixation through clamping arms and clamping pads. The temperature control device achieves precise temperature control through heating tubes and temperature sensors.
It improves the control precision and structural stability of the testing environment, ensures the reliability of sample fixation during the immersion process, and achieves precise temperature adjustment and reproducibility of test results.
Smart Images
Figure CN224553036U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of textile testing technology, and specifically relates to a water immersion tank structure for textile testing. Background Technology
[0002] Textile testing is a crucial step in the textile industry. Water immersion testing, as an important method for evaluating textile performance, is widely used to test performance indicators such as water absorption, water retention, water resistance, and color fastness. Traditional textile water immersion testing typically employs a simple container immersion method, immersing textile samples in a container of water and then observing and recording relevant performance indicators. This traditional method has several shortcomings, primarily manifested in low precision control of the testing environment, unreliable sample fixation methods, and poor reproducibility of test results. Existing water immersion testing devices are mostly simple in structure, lacking effective temperature control methods and failing to meet the temperature requirements of different testing standards. Furthermore, existing devices often use simple clamps or weights for sample clamping, resulting in unsatisfactory clamping effects and a tendency for samples to shift or detach during immersion, affecting the accuracy of test results. In addition, existing devices generally have poor structural stability, easily deforming or being damaged during use, affecting the continuity and reliability of testing. With the rapid development of the textile industry and the continuous improvement of quality requirements, the performance requirements for textile testing equipment are also increasing, necessitating the development of textile water immersion testing devices that are structurally stable, precisely controlled, and easy to operate. Utility Model Content
[0003] In view of this, the present invention provides a water immersion tank structure for textile testing, which can solve the technical problem that the sample clamping effect of existing water immersion tanks for textile testing is not ideal.
[0004] This utility model is implemented as follows:
[0005] This utility model provides a water immersion tank structure for textile testing, comprising: an immersion tank, a support frame, a cover plate, a clamping device, and a temperature control device; the immersion tank has a rectangular parallelepiped structure, with a drain outlet at the bottom and a water inlet on the side wall; the support frame includes a base and columns, the base being a rectangular steel plate structure, and four columns fixedly connected to the four corners of the base, with the immersion tank fixedly mounted on top of the four columns via mounting bases; the cover plate has a rectangular plate structure, with an observation window at its geometric center, and is connected to the immersion tank via a hinge shaft. One side edge is used to support the lid to rotate and open around the edge of the soaking tank; the clamping device includes a clamping frame and a rotary spring. The clamping frame is fixedly installed on the lower surface of the lid. The clamping frame includes two clamping arms arranged opposite each other. The two clamping arms are connected by a rotating shaft. One end of the rotating shaft is fixedly connected to one clamping arm, and the other end of the rotating shaft is connected to the other clamping arm. The rotating shaft is connected to the bottom surface of the lid, and a rotary spring is provided at the connection point; the temperature control device includes a heating tube and a temperature sensor. The heating tube has a U-shaped structure and is fixedly installed at the bottom of the soaking tank. The temperature sensor is fixedly installed on the inner wall of the soaking tank.
[0006] The technical advantages of the water immersion tank structure for textile testing provided by this utility model are as follows: A complete water immersion tank structure for textile testing is constituted by the combination of the immersion tank, support frame, cover plate, clamping device, and temperature control device. The immersion tank provides space for textile immersion, the support frame provides a stable support foundation for the entire device, the cover plate achieves closed control of the immersion process, the clamping device ensures stable fixation of the textile sample, and the temperature control device achieves precise control of the immersion temperature. The connection and positional relationships between the various components are rationally designed, forming a fully functional and structurally stable textile testing device.
[0007] Based on the above technical solution, the structure of the water immersion tank for textile testing of this utility model can be further improved as follows:
[0008] The inner wall of the soaking tank is provided with multiple ribs, which extend along the length of the soaking tank. The cross-section of the ribs is rectangular, and the multiple ribs are evenly distributed on the inner wall of the soaking tank.
[0009] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a rib structure on the inner side wall of the soaking tank, the structural strength of the soaking tank is enhanced, preventing deformation of the tank due to changes in water pressure and temperature during use. The rectangular cross-section and evenly spaced distribution of the ribs not only improve the load-bearing capacity of the tank, but also increase the roughness of the inner surface, which is conducive to the full contact and wetting of textile samples during the soaking process.
[0010] Furthermore, the four columns of the support frame are connected by crossbeams, and there are eight crossbeams in total. The crossbeams are connected between two adjacent columns, and the crossbeams have an I-shaped cross section. The crossbeams are fixedly connected to the columns by welding.
[0011] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By setting crossbeams to connect the columns of the support frame, the overall rigidity and stability of the support frame are significantly improved. The I-shaped cross-section design of the crossbeams has good bending resistance and can effectively resist the influence of external loads and vibrations. The reasonable arrangement of the eight crossbeams forms a complete support network, ensuring the positional stability and safety of the soaking tank during use.
[0012] Furthermore, the upper surface of the cover plate is provided with handles, and there are two handles. The two handles are respectively located at the midpoint of the two long sides of the cover plate. The handles are arc-shaped and are fixed to the cover plate by bolts.
[0013] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By installing handles on the cover plate, it is more convenient for operators to open and close the cover plate. The arc-shaped structure of the handles conforms to ergonomic principles, providing a comfortable grip and reducing operator fatigue. The two handles are respectively positioned at the midpoint of the long side of the cover plate, achieving a uniform distribution of the cover plate's weight, reducing the operator's workload, and improving operational safety and convenience.
[0014] Furthermore, the clamping device has clamping pads on its two clamping arms. The clamping pads are cuboid in shape and have anti-slip textures on their surfaces. The clamping pads are fixedly connected to the inner side of the clamping arms by adhesive bonding.
[0015] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By setting clamping pads on the clamping arms, the clamping effect of the clamping device on textile samples is improved. The anti-slip texture design of the clamping pads increases the friction with the textile samples, preventing the samples from slipping or falling off during immersion. The cuboid structure of the clamping pads ensures a high degree of fit with the clamping arms, guaranteeing a uniform distribution of clamping force and avoiding localized damage to the textile samples.
[0016] Furthermore, the temperature control device also includes a temperature control instrument, which is fixedly mounted on one of the columns of the support frame. The temperature control instrument is electrically connected to the heating tube and the temperature sensor respectively through wires. The surface of the temperature control instrument is equipped with a temperature display screen and a temperature adjustment button.
[0017] The beneficial effects of adopting the above-mentioned improved scheme are as follows: By setting up a temperature controller, real-time monitoring and precise adjustment of the soaking temperature are achieved. The electrical connection between the temperature controller, the heating element, and the temperature sensor forms a complete temperature control loop, which can automatically adjust the heating power according to the set temperature. The temperature display screen provides an intuitive temperature display, and the temperature adjustment buttons facilitate temperature setting by the operator, improving the accuracy and convenience of temperature control.
[0018] Furthermore, the four corners of the soaking tank are provided with rounded transitions, and the radius of the rounded transitions is 5 mm to 15 mm.
[0019] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By setting rounded corners at the four corners of the soaking tank, sharp edges are eliminated, reducing safety hazards. The rounded corner design reduces stress concentration, improving the structural strength and service life of the soaking tank. At the same time, the rounded corners facilitate smooth water flow, reduce the formation of dead corner areas, and improve the convenience of cleaning and maintenance.
[0020] Furthermore, the height of the rib is 3 mm to 8 mm, the width of the rib is 5 mm to 12 mm, and the spacing between adjacent ribs is 20 mm to 40 mm.
[0021] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By precisely limiting the height, width, and spacing of the ribs, the structural parameters of the ribs are optimized. Reasonable rib dimensions ensure the structural strength of the soaking tank while avoiding excessive material usage. Precise control of the rib spacing ensures the uniformity of the inner surface texture, which is beneficial for uniform stress and full wetting of textile samples during the soaking process.
[0022] Furthermore, the observation window has a circular structure with a diameter of 50 mm to 100 mm, and a sealing groove is provided on the edge of the observation window, with a sealing ring inside the sealing groove.
[0023] The beneficial effects of adopting the above-mentioned improved scheme are as follows: By precisely designing the shape, size, and sealing structure of the observation window, direct observation of the immersion process is achieved. The circular observation window has a simple structure, low manufacturing cost, and good light transmission. A reasonable diameter range satisfies observation needs while ensuring the overall strength of the cover plate. The design of the sealing groove and sealing ring ensures the sealing performance of the observation window, preventing water vapor leakage.
[0024] Furthermore, the diameter of the heating tube is 8 mm to 15 mm, the distance between the two straight sections of the heating tube is 80 mm to 120 mm, and the bending radius of the heating tube is 20 mm to 35 mm.
[0025] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By precisely limiting the diameter, straight section distance, and bending radius of the heating tube, the structural parameters of the heating tube are optimized. A reasonable tube diameter design ensures uniform distribution of heating power and heat transfer efficiency. Control of the straight section distance ensures a reasonable distribution of the heating area, and the design of the bending radius balances structural compactness and manufacturability, improving the reliability and service life of the heating tube.
[0026] Compared with existing technologies, the beneficial effects of the water immersion tank structure for textile testing provided by this utility model are as follows: This utility model effectively solves the technical problems existing in existing water immersion tanks for textile testing through reasonable structural design and component configuration. The immersion tank adopts a cuboid structure with inner wall ribs, which significantly improves structural strength and stability, avoiding deformation problems during use. The support frame adopts a combination structure of columns and beams, forming a stable support system and ensuring the structural stability of the entire device. The temperature control device, through the cooperation of heating tubes, temperature sensors, and temperature controllers, achieves precise control of the immersion temperature, with high control accuracy and fast response speed. The clamping device, through the design of clamping frames and clamping pads, achieves reliable clamping of textile samples, preventing slippage and detachment of samples during immersion. The connection and positional relationships between various components are reasonably designed, the overall structure is compact, easy to operate, and simple to maintain, providing a reliable technical means for immersion testing of textiles. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 A front sectional view of the structure of a water immersion tank for textile testing;
[0029] Figure 2 A side sectional view of the structure of a water immersion tank for testing textiles;
[0030] Figure 3 A top view of the structure of a water immersion tank for testing textiles;
[0031] The attached diagram lists the components represented by each number as follows:
[0032] 10. Immersion tank; 11. Drain outlet; 12. Inlet; 20. Support frame; 21. Base; 22. Column; 30. Cover plate; 31. Observation window; 40. Clamping device; 41. Clamping arm; 42. Rotary spring; 50. Temperature control device; 51. Heating tube; 52. Temperature sensor. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0034] like Figure 1-3 The diagram shows a schematic of a water immersion tank structure for textile testing provided by this utility model. In this embodiment, it includes: an immersion tank 10, a support frame 20, a cover plate 30, a clamping device 40, and a temperature control device 50. The immersion tank has a rectangular parallelepiped structure, with a drain outlet 11 at the bottom and a water inlet 12 on the side wall. The support frame includes a base 21 and columns 22. The base is a rectangular steel plate structure, and there are four columns, which are fixedly connected to the four corners of the base. The immersion tank is fixedly mounted on the top of the four columns via mounting bases. The cover plate has a rectangular plate structure, with an observation window 31 at the geometric center of the cover plate. A hinge shaft is connected to one side edge of the soaking tank to support the lid to rotate and open around the edge of the soaking tank; the clamping device includes a clamping frame 41 and a rotary spring 42. The clamping frame is fixedly installed on the lower surface of the lid and includes two clamping arms arranged opposite each other. The two clamping arms are connected by a rotating shaft. One end of the rotating shaft is fixedly connected to one clamping arm, and the other end of the rotating shaft is connected to the other clamping arm. The rotating shaft is connected to the lower bottom surface of the lid, and a rotary spring is provided at the connection point; the temperature control device includes a heating tube 51 and a temperature sensor 52. The heating tube has a U-shaped structure and is fixedly installed at the bottom of the soaking tank. The temperature sensor is fixedly installed on the inner wall of the soaking tank.
[0035] In the above technical solution, the inner wall of the soaking tank is provided with multiple ribs. The ribs extend along the length of the soaking tank and have a rectangular cross-section. The multiple ribs are evenly distributed on the inner wall of the soaking tank.
[0036] Furthermore, in the above technical solution, the four columns of the support frame are connected by crossbeams, and there are eight crossbeams in total. The crossbeams are connected between two adjacent columns, and the crossbeams have an I-shaped cross section. The crossbeams are fixedly connected to the columns by welding.
[0037] Furthermore, in the above technical solution, the upper surface of the cover plate is provided with handles, and there are two handles. The two handles are respectively located at the midpoint of the two long sides of the cover plate. The handles are arc-shaped and are fixedly connected to the cover plate by bolts.
[0038] Furthermore, in the above technical solution, the two clamping arms of the clamping device are respectively provided with clamping pads. The clamping pads are cuboid in shape and have anti-slip textures on their surfaces. The clamping pads are fixedly connected to the inner side of the clamping arms by adhesive bonding.
[0039] Furthermore, in the above technical solution, the temperature control device also includes a temperature control instrument, which is fixedly mounted on one of the columns of the support frame. The temperature control instrument is electrically connected to the heating tube and the temperature sensor respectively through wires. The surface of the temperature control instrument is equipped with a temperature display screen and a temperature adjustment button.
[0040] Furthermore, in the above technical solution, the four corners of the soaking tank are provided with rounded transitions, and the radius of the rounded transitions is 5 mm to 15 mm.
[0041] Furthermore, in the above technical solution, the height of the rib is 3 mm to 8 mm, the width of the rib is 5 mm to 12 mm, and the spacing between adjacent ribs is 20 mm to 40 mm.
[0042] Furthermore, in the above technical solution, the observation window has a circular structure with a diameter of 50 mm to 100 mm, and a sealing groove is provided on the edge of the observation window, with a sealing ring inside the sealing groove.
[0043] Furthermore, in the above technical solution, the diameter of the heating tube is 8 mm to 15 mm, the distance between the two straight sections of the heating tube is 80 mm to 120 mm, and the bending radius of the heating tube is 20 mm to 35 mm.
[0044] First, check that all components of the device are intact, ensuring the support frame is stable and the soaking tank is undamaged. Open the cover and check the inside of the soaking tank for cleanliness; remove any debris or dirt promptly. Inject an appropriate amount of water into the soaking tank through the inlet; the water level should be determined according to the test requirements, generally enough to completely immerse the sample. Activate the temperature control device, set the desired soaking temperature, and the system will automatically heat to the set temperature and maintain it constant. Place the textile sample to be tested in the clamping device, adjusting the position of the clamping arms to ensure the sample is held flat between the clamping pads. Ensure the clamping force is moderate, preventing the sample from slipping while avoiding damage. Close the cover, ensuring a good seal, and observe the soaking status of the sample through the observation window. Set the soaking time according to the test standard requirements; observe the sample's changes during soaking through the observation window. After soaking, open the cover, remove the sample, and proceed with subsequent testing and analysis. After testing, drain the water from the soaking tank and clean all components, especially the inside of the soaking tank and the clamping device, ensuring no residue remains. Regularly inspect and maintain all components to ensure the proper functioning of the device.
[0045] The following is a specific embodiment of this utility model: The textile testing water immersion tank in this embodiment is made of high-quality stainless steel, which has good corrosion resistance and mechanical strength. The external dimensions of the immersion tank are 500 mm long, 300 mm wide, and 200 mm high, with an internal volume of approximately 30 liters, which can meet the immersion testing requirements of textile samples of various specifications. The wall thickness of the immersion tank is 3 mm, and 12 raised ribs are provided on the inner sidewall. The ribs are 5 mm high, 8 mm wide, and spaced 30 mm apart. The ribs extend along the length direction, effectively enhancing the structural strength of the tank. The four corners of the immersion tank are rounded with a radius of 10 mm to eliminate sharp edges and improve safety. A 25 mm diameter drain outlet is provided at the bottom, controlled by a ball valve, for convenient water discharge. A 20 mm diameter water inlet is provided on the side wall, located 100 mm from the bottom of the tank, for easy water filling. The support frame is constructed from square steel tubing, with a base measuring 800 mm × 600 mm and a thickness of 10 mm. The four uprights are 40 mm × 40 mm in cross-section, with a wall thickness of 3 mm and a height of 800 mm. Eight crossbeams, each with a cross-section of 50 mm × 25 mm I-beams, are welded to the uprights to form a stable support structure. The cover plate is made of 5 mm thick stainless steel with a brushed finish for a high-quality appearance. The observation window is circular, 80 mm in diameter, and made of tempered glass, offering excellent light transmission and high safety. A 3 mm wide and 2 mm deep sealing groove surrounds the observation window, with an internal rubber sealing ring to ensure a tight seal. Two handles, made of bent stainless steel tubing, 12 mm in diameter and 120 mm long, are fixed to the cover plate with M6 bolts. The clamping device's clamping frame is made of aluminum alloy, making it lightweight and high-strength. The clamping arm measures 200 mm long, 30 mm wide, and 10 mm thick. The clamping pad, made of silicone, measures 180 mm long, 25 mm wide, and 5 mm thick, with a 0.5 mm deep anti-slip texture on its surface, providing a large contact area with the textile sample and ensuring good clamping performance. The heating element of the temperature control device is a stainless steel-sheathed electric heating tube with a power of 2000 watts and a diameter of 12 mm. The two straight sections of the U-shaped structure are 180 mm long, 100 mm apart, and have a bending radius of 25 mm, ensuring uniform heating and high thermal efficiency. The temperature sensor is a PT100 platinum resistance thermometer with a temperature range of 0-100 degrees Celsius, an accuracy of ±0.5 degrees Celsius, and a fast response time. The temperature controller is a digital display temperature controller with a control accuracy of ±1 degree Celsius and over-temperature protection, ensuring safety and reliability. The entire device weighs approximately 45 kg, has a compact structure, is easy to operate, and meets the requirements of textile testing laboratories. In practical use, the device can provide a stable immersion environment, precise temperature control, reliable sample clamping, and good reproducibility of test results, significantly improving the efficiency and accuracy of water immersion tests on textiles.All performance indicators of the device have met the design requirements. The structural design is reasonable and the manufacturing process is advanced, giving it good practicality and promotional value.
[0046] Specifically, the principle of this utility model is as follows: This utility model adopts a modular design approach, decomposing the structure of the textile testing water immersion tank into functional modules such as the immersion tank body, support frame, cover plate, clamping device, and temperature control device. These modules are connected in a reasonable manner to form a complete testing system. The immersion tank body adopts a cuboid structure with ribs on the inner wall. By increasing structural strength and surface roughness, the load-bearing capacity of the tank body and the sample wetting effect are improved. The support frame adopts a combination structure of columns and beams, forming a stable three-dimensional support system. The columns provide vertical support force, and the beams provide horizontal constraint force, jointly ensuring the structural stability of the entire device. The cover plate is connected by a hinge shaft to achieve opening and closing, facilitating sample placement and removal while ensuring the airtightness of the immersion process. A rotating shaft enables relative movement of the clamping arms, and the anti-slip design of the clamping pads ensures reliable sample clamping. The temperature control device uses an electric heating principle, achieving uniform heating through a U-shaped heating tube. A temperature sensor monitors the water temperature in real time, and the temperature controller automatically adjusts the heating power according to the set temperature, forming a closed-loop control system. The selection of materials and structural design of each component fully consider the characteristics of the usage environment, and have good water resistance, corrosion resistance and mechanical strength, which can meet the requirements of long-term use.
[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A water immersion tank structure for textile testing, characterized in that, The system includes an immersion tank, a support frame, a cover plate, a clamping device, and a temperature control device. The immersion tank has a rectangular parallelepiped structure with a drain outlet at the bottom and a water inlet on its side wall. The support frame includes a base and four columns. The base is a rectangular steel plate structure, and the four columns are fixedly connected to the four corners of the base. The immersion tank is fixedly mounted on top of the four columns via mounting brackets. The cover plate has a rectangular plate structure with an observation window at its geometric center. The cover plate is connected to one side edge of the immersion tank via a hinge shaft to support the cover plate around the immersion tank. The tank edge rotates to open and close; the clamping device includes a clamping frame and a rotary spring. The clamping frame is fixedly installed on the lower surface of the cover plate. The clamping frame includes two clamping arms arranged opposite each other. The two clamping arms are connected by a rotating shaft. One end of the rotating shaft is fixedly connected to one clamping arm, and the other end of the rotating shaft is connected to the other clamping arm. The rotating shaft is connected to the lower bottom surface of the cover plate, and a rotary spring is provided at the connection point; the temperature control device includes a heating tube and a temperature sensor. The heating tube has a U-shaped structure and is fixedly installed at the bottom of the soaking tank. The temperature sensor is fixedly installed on the inner wall of the soaking tank.
2. The structure of a water immersion tank for textile testing according to claim 1, characterized in that, The inner wall of the soaking tank is provided with multiple ribs, which extend along the length of the soaking tank. The cross-section of the ribs is rectangular, and the multiple ribs are evenly distributed on the inner wall of the soaking tank.
3. The structure of a water immersion tank for textile testing according to claim 2, characterized in that, The four uprights of the support frame are connected by crossbeams. There are eight crossbeams in total. Each crossbeam is connected between two adjacent uprights. The crossbeams have an I-shaped cross section and are fixed to the uprights by welding.
4. The structure of a water immersion tank for textile testing according to claim 3, characterized in that, The upper surface of the cover plate is provided with handles. There are two handles, which are respectively located at the midpoint of the two long sides of the cover plate. The handles are arc-shaped and are fixed to the cover plate by bolts.
5. The structure of a water immersion tank for textile testing according to claim 4, characterized in that, The clamping device has two clamping arms, each equipped with a clamping pad. The clamping pad has a cuboid structure and an anti-slip texture on its surface. The clamping pad is fixedly connected to the inner side of the clamping arm by an adhesive method.
6. The structure of a water immersion tank for textile testing according to claim 5, characterized in that, The temperature control device also includes a temperature control instrument, which is fixedly mounted on one of the columns of the support frame. The temperature control instrument is electrically connected to the heating tube and the temperature sensor respectively through wires. The surface of the temperature control instrument is equipped with a temperature display screen and a temperature adjustment button.
7. The water immersion tank structure for textile testing according to claim 6, characterized in that, The four corners of the soaking tank are rounded, with a radius of 5 mm to 15 mm.
8. The structure of a water immersion tank for textile testing according to claim 7, characterized in that, The height of the rib is 3 mm to 8 mm, the width of the rib is 5 mm to 12 mm, and the spacing between adjacent ribs is 20 mm to 40 mm.
9. The structure of a water immersion tank for textile testing according to claim 8, characterized in that, The observation window has a circular structure with a diameter of 50 mm to 100 mm. The edge of the observation window is provided with a sealing groove, and a sealing ring is provided in the sealing groove.
10. The structure of a water immersion tank for textile testing according to claim 9, characterized in that, The heating tube has a diameter of 8 mm to 15 mm, a distance of 80 mm to 120 mm between two straight sections, and a bending radius of 20 mm to 35 mm.