Fastening assembly convenient for testing physical and chemical properties of fibrous membrane

Abstract

The utility model belongs to the technical field of nanofiber membrane testing, and mainly relates to a fastening assembly convenient for testing the physical and chemical properties of a fiber membrane, the fastening assembly is composed of a device body, the device body comprises a bearing table and a pressing plate which are used for clamping the nanofiber membrane, and a locking assembly used for fixing the bearing table and the pressing plate; the bearing table is provided with a bearing area, and at least two first fixing holes, second through holes and third fixing holes which are distributed around the bearing area, and the bearing area is used for bearing the nanofiber membrane; the pressing plate is provided with an observation cavity, the observation cavity is provided with a guide face, the guide face is of a U-shaped groove structure, at least two second fixing holes and third through holes are distributed around the observation cavity, the second fixing holes correspond to the first fixing holes, and the bearing table and the pressing plate are fixed through a locking assembly; according to the utility model, the nanofiber membrane can be effectively reinforced, and the accuracy of measuring part of physicochemical properties of the nanofiber membrane is improved.

Description

Technical Field

[0001] This invention belongs to the field of nanofiber membrane testing technology, specifically relating to a fastening component that facilitates the testing of the physicochemical properties of fiber membranes. Background Technology

[0002] Nanofiber membranes exhibit significant advantages in the fields of new energy and new materials, including high-temperature resistance, excellent air permeability, high mechanical strength, and high voltage resistance. They are commonly used in sodium-ion batteries, aqueous zinc-ion batteries, and lithium-ion batteries, helping to improve battery efficiency and extend their lifespan. In the field of environmental protection, nanofiber membranes, due to their large pore size and high porosity, show great application potential in material separation and environmental pollution control. As research into nanofiber membrane materials deepens, higher demands are being placed on the efficiency of each stage, including preparation and testing.

[0003] In this field, electrospinning technology is widely used in the preparation of nanofiber membranes. Although it is a simple and commonly used method, nanofiber membranes prepared by this technology have a significant drawback—the inter-fiber bonding force in the prepared nanofiber membranes is relatively weak. Since the testing of certain physicochemical properties of nanofiber membranes requires a liquid immersion system, the fiber membranes begin to fluff up during the testing process. Furthermore, technicians typically use single-sided or double-sided adhesive tape to attach the test samples to the test stage during testing; however, the fixing ability of single-sided or double-sided adhesive tape is limited, making it difficult to secure the samples and leading to biased test results. In particular, during the transportation of nanofiber membrane samples, damage and deformation occasionally occur due to the lack of a dedicated device for securing them. Therefore, a component for testing nanofiber membranes has been developed. Utility Model Content

[0004] The purpose of this invention is to provide a fastening component that facilitates testing of the physicochemical properties of fiber membranes, addressing the shortcomings of existing technologies.

[0005] To achieve the above objectives, this application implements the following technical solution:

[0006] A fixing assembly for testing the physicochemical properties of nanofiber membranes comprises a device body, the device body including: a receiving platform and a pressing plate for clamping the nanofiber membrane, and a locking assembly for fixing the receiving platform and the pressing plate; the receiving platform is provided with a receiving area and at least two first fixing holes, a second through hole and a third fixing hole distributed around the receiving area, the receiving area being used to receive the nanofiber membrane.

[0007] The clamping plate is provided with an observation cavity, the observation cavity is provided with a guide surface, the guide surface is a U-shaped groove structure, and at least two second fixing holes and a third through hole are distributed around the observation cavity. The second fixing holes are corresponding to the first fixing holes, and the receiving platform is fixed to the clamping plate by the locking assembly.

[0008] The clamping plate is provided with a cover plate, which is assembled into the observation cavity. The cover plate is provided with a fourth fixing hole corresponding to the third fixing hole. The third fixing hole and the fourth fixing hole are used to fix the cover plate to the receiving platform through the locking assembly.

[0009] The pressing plate is provided with a pressure plate, and the pressure plate is provided with a pressure plate fixing hole. The pressure plate fixing hole is correspondingly set with the third fixing hole and the fourth fixing hole, and the pressure plate, the cover plate and the receiving platform are fixed by the locking assembly.

[0010] The pressure plate is provided with a first through hole, and the first through hole, the second through hole and the third through hole are correspondingly arranged and the pressure plate, the cover plate and the receiving platform are fixed by the locking assembly.

[0011] The cover plate has an arc-shaped surface that matches the U-shaped groove structure of the guide surface.

[0012] The width of the U-shaped groove is D1, and the width of the clamping plate is D2; wherein, D1 and D2 satisfy: 1 / 4D2≤D1≤1 / 3D2.

[0013] The number of the first fixing hole and the number of the second fixing hole are both 4.

[0014] The above technical solution produces the following technical effects:

[0015] The fixing assembly of this application, through the cooperation of the receiving platform and the pressure plate, as well as the fixing effect of the locking assembly, achieves effective clamping and fixing of the nanofiber membrane, ensuring the integrity of the nanofiber membrane to be tested during transportation and avoiding its breakage and deformation. In particular, the receiving area on the receiving platform of this utility model is used to receive the clamping part of the nanofiber membrane, preventing the fibers of the nanofiber membrane from floating or swaying during the test, thereby greatly improving the accuracy and stability of the test. In addition, the observation cavity set on the pressure plate of this utility model is conducive to tracking and observing the changes in the nanofiber membrane or taking pictures during the test. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is an exploded view of the fixing component used for testing the nanofiber membrane in Embodiment 1 of this utility model;

[0018] Figure 2 This is a top view of the clamping plate in Embodiment 1 of this utility model;

[0019] Figure 3 This is a top view of the receiving platform in Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the locking assembly in Embodiment 1 of this utility model;

[0021] Figure 5 This is a top view of the fixing component used for testing the nanofiber membrane in Embodiment 2 of this utility model;

[0022] Figure 6 for Figure 5 Cross-sectional view along AA.

[0023] Figure label:

[0024] 1-Nanofiber membrane;

[0025] 11-Clamping part;

[0026] 12-Observation Department;

[0027] 2-Receiving platform;

[0028] 21-Receiving Area;

[0029] 22-First fixing hole;

[0030] 23 - Third fixing hole;

[0031] 24 - Second through hole;

[0032] 3-Pressure plate;

[0033] 31 - Second fixing hole;

[0034] 32 - Observation cavity;

[0035] 321 - Guide surface;

[0036] 33 - Third through hole;

[0037] 4-Locking assembly;

[0038] 41-Pressure plate bolt;

[0039] 411 - First nut;

[0040] 412 - First Nut;

[0041] 42 - Fixing bolt;

[0042] 421 - Second nut;

[0043] 422 - Second nut.

[0044] 5-Cover plate;

[0045] 51 - Fourth fixing hole;

[0046] 52-Mating surface;

[0047] 6-Pressure plate;

[0048] 61 - Pressure plate fixing hole;

[0049] 62 - First through hole. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0051] Implementation Method 1

[0052] like Figure 1-4 As shown, a fixing assembly for testing the physicochemical properties of nanofiber membranes includes: a receiving platform 2 and a pressing plate 3 for clamping the nanofiber membrane 1, and a locking assembly 4 for fixing the receiving platform 2 and the pressing plate 3. The receiving platform 2 is provided with a receiving area 21 and at least two first fixing holes 22 distributed around the receiving area 21. The receiving area 21 is used to receive the nanofiber membrane 1. The pressing plate 3 is provided with an observation cavity 32 and at least two second fixing holes 31 distributed around the observation cavity 32. The first fixing holes 22 and the second fixing holes 31 are correspondingly arranged, and the receiving platform 2 and the pressing plate 3 are fixed by the locking assembly 4. This clamping method can not only effectively prevent the nanofiber membrane 1 from floating or swaying during the test, but also ensure that the observation part 12 maintains a relatively stable position in the observation cavity 32, thereby facilitating the observation and testing of the nanofiber membrane 1.

[0053] The nanofiber membrane 1 includes a clamping part 11 and an observation part 12. The clamping part 11 is placed between the receiving platform 2 and the clamping plate 3, and the observation part 12 is placed under the observation cavity 32. The observation cavity 32 is provided with a guide surface 321, which is a U-shaped groove. The cover plate 5 is provided with an arc-shaped mating surface 52 that mates with the guide surface 321, and the guide surface 321 and the mating surface 52 are in contact. In addition, the width of the U-shaped groove in the guide surface is D1, and the width of the clamping plate is D2; wherein D1 and D2 satisfy: 1 / 4D2≤D1≤1 / 3D2, which further improves the adaptability of the fastener of this application.

[0054] Preferably, there are four first fixing holes 22 and four second fixing holes 31. The fixing bolts 42 pass through these holes, making the connection between the receiving platform 2 and the pressure plate 3 more secure. The receiving platform 2, the pressure plate 3, and the cover plate 5 form a stable testing environment. It is worth noting that the fixing bolts 42 are countersunk bolts. When the fixing bolts 42 pass through the first fixing holes 22 and the second fixing holes 31, the second nut 421 on the fixing bolt 42 first contacts the countersunk hole on the lower surface of the receiving platform 2. Furthermore, the threaded portion of the fixing bolt 42 engages with the threaded portion of the second nut 422. As the second nut 422 is gradually tightened, the second nut 421 on the fixing bolt 42 gradually abuts against the countersunk hole until the upper surface of the second nut 421 is flush with the countersunk hole, thereby smoothly and evenly pushing the receiving platform 2 towards the pressure plate 3. After the fixing bolts 42 are tightened, a tight and stable connection is formed between the pressure plate 3 and the receiving platform 2. At this time, due to the presence of the second nut 422, the fixing bolt 42 cannot be easily loosened after being tightened, thus ensuring a stable connection between the pressure plate 3 and the receiving platform 2.

[0055] In practice, the above technical solution is mainly applied to sample testing in internal laboratories. The implementation steps of the above technical solution are as follows:

[0056] S1. Cut a test sample (nanofiber membrane 1) to the appropriate size;

[0057] S2. Place the test sample in the middle of the receiving platform 2 (that is, place the nanofiber membrane 1 in the receiving area 21);

[0058] S3. Align the second fixing holes 31 at the four corners of the clamping plate 3 with the first fixing holes 22 at the four corners of the receiving platform 2 (in specific implementation, such as...). Figure 2-3 As shown, the first fixing hole 22 and the second fixing hole 31 are respectively located at the four corners of the receiving platform 2 and the pressing plate 3. Then, the pressing plate 3 is placed on the receiving platform 2.

[0059] S4. Secure the receiving platform 2 and the pressure plate 3 with the fixing bolts 42, thereby pressing the test sample (nanofiber membrane 1) tightly.

[0060] S5. Fix the fixing components of this application to the test bench and perform the test.

[0061] Among them, such as Figure 3 As shown, in step S1 above, the shape of the test sample (nanofiber membrane 1) is specifically determined by the test conditions.

[0062] Implementation Method 2

[0063] like Figure 1-6As shown, unlike Embodiment 1, the sample fibers often become further loosened due to changes in environmental conditions during sample transport. To alleviate this situation, this application further improves the fixing assembly of the test nanofiber membrane 1. Specifically, the clamping plate 3 of this application is equipped with a cover plate 5, which is fitted into the observation chamber 32. The receiving platform 2 has a third fixing hole 23, and the cover plate 5 has a fourth fixing hole 51 corresponding to the third fixing hole 23. The third fixing hole 23 and the fourth fixing hole 51 are fixed to the receiving platform 2 by a locking assembly 4. Thus, the cover plate 5 can seal the observation chamber 32, preventing the nanofiber membrane 1 from being disturbed by the external environment during transport.

[0064] In practice, when outsourced testing is required, the tester can fix the test sample (nanofiber membrane 1) according to steps S1 to S4 in Embodiment 1, and change test step S5 to: assembling the cover plate 5 into the observation chamber 32, aligning the fourth fixing hole 51 with the third fixing hole 23, and fixing the cover plate 5 to the receiving platform 2 with the locking assembly 4. In this way, even under changing external environmental conditions, the nanofiber membrane 1 can be effectively protected, preventing further loosening of the fibers. Upon receiving the outsourced test sample, the tester can remove the cover plate 5 and conduct the test according to the normal testing procedure.

[0065] Furthermore, to further ensure the stability of the nanofiber membrane 1 during testing, the pressure plate 3 is equipped with a pressure plate 6, which has pressure plate fixing holes 61. These fixing holes 61 correspond to the third fixing hole 23 and the fourth fixing hole 51, and the pressure plate 6, cover plate 5, and receiving platform 2 are fixed together by the locking assembly 4. In this way, even if the nanofiber membrane 1 encounters a large external impact during testing, it can be effectively protected, avoiding testing errors caused by insecure fixing.

[0066] Specifically, the pressure plate 6 is equipped with a first through hole 62, while the receiving platform 2 is equipped with a second through hole 24. Furthermore, the pressure plate 3 is equipped with a third through hole 33. These through holes—the first through hole 62, the second through hole 24, and the third through hole 33—are correspondingly arranged and are used to tightly fix the pressure plate 6, the cover plate 5, and the receiving platform 2 together using pressure plate bolts 41. It is worth noting that the pressure plate bolts 41 are countersunk bolts. When the pressure plate bolts 41 pass through the first through hole 62, the second through hole 24, and the third through hole 33, the first nut 411 of the pressure plate bolt 41 abuts against the countersunk hole at the bottom of the receiving platform 2 until it is flush with the countersunk hole. Thus, as the first nut 412 is gradually tightened, the pressure plate bolts 42 smoothly and evenly fix the pressure plate 6, the cover plate 5, and the receiving platform 2 together. The pressure plate bolts 42 are then tightly fitted to the cover plate 33 and the receiving platform 2 by the first nut 412 until all three are completely fixed. This design effectively prevents any potential movement or damage to the nanofiber membrane 1 during testing or transportation. This ensures the absolute stability of the nanofiber membrane 1 during transport, guaranteeing the accuracy and reliability of the test samples received by the laboratory.

[0067] Other aspects that are the same as in Implementation Method 1 will not be described again in this implementation method.

[0068] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fastening assembly for facilitating the testing of the physical and chemical properties of a fibrous membrane, consisting of a device body, characterized in that, The device body includes: a receiving platform (2) and a pressing plate (3) for clamping the nanofiber membrane (1) and a locking assembly (4) for fixing the receiving platform (2) and the pressing plate (3); the receiving platform (2) is provided with a receiving area (21) and at least two first fixing holes (22), a second through hole (24) and a third fixing hole (23) distributed around the receiving area (21), the receiving area (21) being used to receive the nanofiber membrane (1); The clamping plate (3) is provided with an observation cavity (32), the observation cavity (32) is provided with a guide surface (321), the guide surface (321) is a U-shaped groove structure, and at least two second fixing holes (31) and a third through hole (33) are distributed around the observation cavity (32). The second fixing holes (31) are correspondingly set with the first fixing holes (22), and the receiving platform (2) and the clamping plate (3) are fixed by the locking assembly (4).

2. The fastener assembly of claim 1, wherein, The clamping plate (3) is provided with a cover plate (5), the cover plate (5) is assembled in the observation cavity (32), and the cover plate (5) is provided with a fourth fixing hole (51) corresponding to the third fixing hole (23); The third fixing hole (23) and the fourth fixing hole (51) fix the cover plate (5) to the receiving platform (2) through the locking assembly (4).

3. A fastening assembly for convenient testing of the physicochemical properties of fiber membranes according to claim 2, characterized in that, The pressing plate (3) is provided with a pressure plate (6), and the pressure plate (6) is provided with a pressure plate fixing hole (61). The pressure plate fixing hole (61) is correspondingly set with the third fixing hole (23) and the fourth fixing hole (51), and the pressure plate (6), the cover plate (5) and the receiving platform (2) are fixed by the locking assembly (4).

4. The fastener assembly of claim 3, wherein the fastener assembly is configured to facilitate testing of a physical and chemical property of the fibrous membrane. The pressure plate (6) is provided with a first through hole (62), and the first through hole (62), the second through hole (24) and the third through hole (33) are correspondingly arranged and the pressure plate (6), the cover plate (5) and the receiving platform (2) are fixed by the locking assembly (4).

5. The fastener assembly of claim 2, wherein the fastener assembly is configured to facilitate testing of a physical and chemical property of the fibrous membrane. The cover plate (5) is provided with an arc-shaped surface (52) that matches the U-shaped groove structure of the guide surface (321).

6. The fastener assembly of claim 1, wherein the fastener assembly is configured to facilitate testing of physical and chemical properties of the fibrous membrane. The width of the U-shaped groove is D1, and the width of the clamping plate (3) is D2; Among them, D1 and D2 satisfy: 1 / 4D2≤D1≤1 / 3D2.

7. The fastener assembly of claim 1, wherein the fastener assembly is configured to facilitate testing of a physical and chemical property of the fibrous membrane. The number of the first fixing hole (22) and the second fixing hole (31) are both 4.

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