Battery test tank sealing structure

Abstract

The invention belongs to the technical field of storage tank bodies, and particularly relates to a battery test tank body sealing structure which comprises rubber strips, the rubber strips are installed on the surfaces of a door frame and a main body of a test tank body, buffer grooves are evenly formed in the rubber strips, and the sides, close to each other, of the buffer grooves and the rubber strips are wavy and mutually staggered and attached; when the test tank is about to be closed and sealed, a worker stretches the lubricating frame into the sliding groove from the opening in the sliding groove and starts the driving piece, the worker holds the lubricating frame to move clockwise along the sliding groove, the driving piece drives the lubricating shaft to rotate reversely, namely, the lubricating shaft rotates anticlockwise while moving forwards, and the lubricating shaft drives the cleaning block to rotate; and the cleaning block rotates while moving forwards to scrape impurities on the surface of the rubber strip and in the recess, so that the rubber strip is cleaned, and the sealing effect of the rubber strip is prevented from being influenced by the impurities.

Description

Technical Field

[0001] This invention belongs to the field of storage tank technology, specifically a sealing structure for a battery testing tank. Background Technology

[0002] The core function of a battery sealed test chamber is to simulate the actual working conditions of a battery in a closed environment, and to evaluate the battery's safety, stability, and lifespan through a series of performance tests. Because batteries or battery packs are tested in the chamber, harmful or corrosive gases are generated, and thermal effects occur during the test, resulting in high temperatures or combustion, which leads to high temperatures in the chamber. Therefore, the sealing performance of the chamber is subject to stringent requirements. The sealing structure in the battery test chamber is particularly important. Currently, there are many sealing materials on the market with various shapes, and most of the materials are rubber-based, with black rubber being made from natural rubber and synthetic rubber.

[0003] When the test tank is closed and sealed, the sealing rubber between the door frame and the main body seals the interior. However, both the door frame and the main body are made of metal, and even if the metal shell surface is processed, it may still have a certain degree of roughness and microscopic defects. If the surface is too rough, the rubber cannot completely fill these uneven areas, which will lead to poor sealing and affect the battery test. In addition, the rubber molecular chain contains some polar groups, such as hydroxyl and carboxyl groups, which will make the rubber surface have a certain degree of adsorption. Dust usually carries a charge or is polar, and it is easy to attract the polar groups on the rubber surface, thus being adsorbed on the surface of the rubber sealing ring. This results in a large amount of dust adhering to the sealing rubber surface, affecting the sealing performance and potentially causing damage to the rubber during the compression sealing process. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a sealing structure for a battery test tank.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: This invention proposes a sealing structure for a battery test tank, comprising:

[0006] A rubber strip is installed on the surface of the door frame and main body of the test tank. Buffer grooves are evenly distributed within the rubber strip. The sides of the rubber strips that are close to each other are wavy and interlocked. An installation groove is provided within the rubber strip, and the rubber strip is installed to the test tank through the installation groove. The installation groove is away from the buffer groove. A liquid bladder is provided within the installation groove, and the liquid bladder stores liquid. Sharp blocks are evenly distributed near the opening of the installation groove, with the sharp blocks facing the liquid bladder.

[0007] A chute is formed on the surface of the test tank door frame and the main body, and a rubber strip is located between two annular chute grooves on the test tank door frame. A lubrication frame is slidably connected in the chute, and an opening is provided at one end of the chute. A lubrication shaft is rotatably connected in the lubrication frame, and the lubrication shaft is connected to a drive component provided on the lubrication frame. Cleaning blocks are evenly provided on the outer ring of the lubrication shaft. The cleaning blocks contact the gaps between two protrusions in the rubber strip. Lubricant is stored in the lubrication frame, and the cleaning blocks contact the lubricant.

[0008] Preferably, the rubber strip has a storage ring with a square cross-section, the storage ring is far from the buffer groove, and the storage ring stores foaming agent; the inner surface of the storage ring has storage holes evenly distributed, and a nozzle is slidably connected to the inner wall of the storage hole, the nozzle is connected to the inner wall of the outer ring of the storage ring by a spring, and one end of the nozzle is connected to the inner wall of the outer ring of the storage ring by rubber, so as to achieve a balance between the thrust and tension of the nozzle; the inner wall of the outer ring of the storage ring has sealing plugs evenly distributed, one end of the sealing plug is located inside the nozzle, and one end of the nozzle is pointed and faces the center of the rubber strip ring.

[0009] Preferably, the outer ring of the storage ring is uniformly provided with pressure relief pipes, and one end of the pressure relief pipe is bent towards the space between the rubber strip and the test tank shell.

[0010] Preferably, the outer ring of the rubber strip is provided with a compression ring, and the edge of the compression ring away from the rubber strip contacts the surface of the test tank body. The compression ring, the rubber strip and the surface of the test tank body form an annular internal space, and the bent end of the pressure relief pipe is located in this space.

[0011] Preferably, elastic rods are uniformly provided on the inner wall of the extrusion ring, and the elastic rods are bent outwards from the extrusion ring.

[0012] Preferably, one end of the elastic rod is connected to the rubber strip, and the other end is provided with barbs and contacts the surface of the test tank body.

[0013] Preferably, scrapers are evenly distributed on the inner wall of the mounting groove, and one side of the scraper contacts the door frame of the test tank.

[0014] Preferably, the scraper has comb teeth on the side away from the inner wall of the mounting groove, and a protrusion is provided in the mounting groove, with the protrusion close to the opening of the mounting groove.

[0015] Preferably, one side of the cleaning block is wavy, and the wavy part of the cleaning block is provided with an intercepting plate.

[0016] Preferably, a rotating shaft is rotatably connected inside the lubrication frame, and the rotating shaft is fixed to the lubrication frame by a locking pin. A lubrication plate is provided on the rotating shaft, and cleaning fluid and lubricant are stored inside the two sides of the lubrication plate, respectively. The two sides of the lubrication plate are in a wavy shape and contact the wavy surface of the rubber strip.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The battery test tank sealing structure of the present invention uses an adhesive to bond the mounting groove to the test tank. On the one hand, the mounting groove acts as a locking mechanism to ensure increased contact area and improve sealing effect. On the other hand, even if the metal shell surface is processed, there may be certain roughness and micro-defects. Rubber cannot completely fill these uneven areas, which will lead to poor sealing. By using the adhesive as a connecting medium between the rubber and the metal, the rubber strip can make more full contact with the surface of the test tank, further improving the sealing effect.

[0019] 2. The battery test tank sealing structure of the present invention, during the curing process, the adhesive gradually changes from liquid to solid, and cross-linking reaction occurs between molecules to form an adhesive layer with certain strength and sealing performance, which seals the rubber and metal together. This avoids the rubber strip from shaking and loosening during frequent opening and closing of the test tank, which would affect the contact between the rubber strip and the metal and reduce the sealing effect. For example, after repeated compression over a long period of time, the rubber strip at a certain part of the metal achieves a mutual adhesion effect with the metal surface at that part. At this time, the adhesion state is optimal and the sealing effect is good. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a diagram showing the state of the two rubber strips before the test tank door is closed;

[0023] Figure 3 This is a diagram showing the state of the two rubber strips after the test tank door is closed;

[0024] Figure 4 This is a three-dimensional view of the rubber strip installed on the shell of the test tank;

[0025] Figure 5 This is a schematic diagram of the rubber strip installed on the shell of the test tank for lubrication frame cleaning;

[0026] Figure 6 This is a schematic diagram of the rubber strip installed on the door frame of the test tank for lubrication frame cleaning;

[0027] Figure 7 yes Figure 6 A magnified view of a section at point A in the middle;

[0028] Figure 8 yes Figure 6 A magnified view of a section at point B in the middle;

[0029] Figure 9This is a schematic diagram of the internal structure of the lubrication frame.

[0030] In the diagram: Rubber strip 1, buffer groove 11, mounting groove 12, liquid bladder 13, pointed block 14, sliding groove 15, lubrication frame 16, opening 17, lubrication shaft 18, drive component 19, cleaning block 2, storage ring 21, storage hole 22, nozzle 23, sealing plug 24, pressure relief pipe 25, squeeze ring 26, elastic rod 27, barb 28, scraper 3, comb teeth 31, protrusion 32, interception plate 33, rotating shaft 34, lubrication plate 35. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1:

[0033] To effectively solve the above problems, see the attached diagram in the instruction manual. Figures 1-9 As shown, a battery test tank sealing structure includes:

[0034] A rubber strip 1 is installed on the surface of the door frame and the main body of the test tank. Buffer grooves 11 are evenly distributed within the rubber strip 1. The sides of the rubber strips 1 that are close to each other are wavy and interlocked. An installation groove 12 is provided within the rubber strip 1, and the rubber strip 1 is installed to the test tank through the installation groove 12. The installation groove 12 is away from the buffer grooves 11. A liquid bladder 13 is provided within the installation groove 12, and the liquid bladder 13 stores liquid. Pointed blocks 14 are evenly distributed near the opening 17 of the installation groove 12, and the pointed blocks 14 face the liquid bladder 13.

[0035] A chute 15 is formed on the surface of the test tank door frame and the main body, and the rubber strip 1 is located between two annular chute 15s on the test tank door frame. A lubrication frame 16 is slidably connected in the chute 15, and an opening 17 is provided at one end of the chute 15. A lubrication shaft 18 is rotatably connected in the lubrication frame 16, and the lubrication shaft 18 is connected to a drive member 19 provided on the lubrication frame 16. Cleaning blocks 2 are evenly provided on the outer ring of the lubrication shaft 18. The cleaning blocks 2 contact the two protruding gaps in the rubber strip 1. The lubrication frame 16 stores lubricant, and the cleaning blocks 2 contact the lubricant.

[0036] Rubber strip 1 is made of fluororubber, which has high temperature resistance and can withstand the high temperature and high pressure of the battery test tank. The conventional high temperature test range of the battery test tank is, for example, 40-150℃, and the conventional pressure test range is, for example, 1-10MPa. The adhesive is a conventional bonding liquid used to adhere the rubber to the test tank, such as silicone adhesive. The drive component 19 is a conventional motor for rotation and is equipped with a power supply. If the operating environment does not allow it, it can also be rotated manually.

[0037] Installation of the sealing structure: Take a fluororubber strip 1 with a corrugated surface, and cut a groove on one side of the rubber strip 1 using a cutting device to complete the opening of the installation groove 12, or it can be directly formed by mold; then, take an annular bladder, inject adhesive into the bladder and seal it, and evenly attach pointed blocks 14 to the inner ring surface of the bladder, with the tips of the pointed blocks 14 facing the inner ring surface of the bladder, to form an adhesive bladder 13; then, insert the adhesive bladder 13 deep into the installation groove 12 and fix it, and the worker makes a storage ring 21 and puts the storage ring 21 on the rubber strip 1. The storage ring 21 is sealed inside the rubber strip 1 by adhesive, or directly sealed inside the rubber strip 1 during the casting process using a mold. The worker aligns the installation groove 12 of the rubber strip 1 with the installation part on the door frame and the main body of the test tank and engages it. The installation part on the door frame and the main body of the test tank penetrates into the installation groove 12 and contacts the pointed block 14. The pointed block 14 punctures the adhesive sac 13, and the adhesive flows out to contact and bond the inner wall of the installation groove 12 with the surface of the installation part on the door frame and the main body of the test tank. The adhesive is ready after the adhesive in the rubber strip 1 has cured and achieved the bonding effect.

[0038] Specific workflow: The mounting groove 12 is bonded to the test tank using adhesive. On one hand, the mounting groove 12 acts as a locking mechanism, ensuring increased contact area and improving sealing. On the other hand, even after processing, the metal shell surface may have some roughness and microscopic defects. Rubber cannot completely fill these uneven areas, leading to incomplete sealing. The adhesive acts as a connecting medium between the rubber and metal, allowing the rubber strip 1 to make more thorough contact with the test tank surface, further improving the sealing effect. Furthermore, during the curing process, the adhesive gradually changes from a liquid to a solid state, with cross-linking reactions occurring between molecules to form an adhesive layer with certain strength and sealing performance, sealingly connecting the rubber and metal together. To prevent the rubber strip 1 from shaking or loosening during frequent opening and closing of the test tank, which could affect the contact between the rubber strip 1 and the metal and reduce the sealing effect, the rubber strip 1 should ideally adhere to the metal surface at a certain point after repeated compression over a long period. This is the optimal fit and provides a good seal. However, if frequent opening and closing causes the rubber strip 1 to loosen and move, the originally fitted parts will misalign with the matching metal parts. Since the rubber strip 1 is fixed in shape due to repeated compression, it is difficult to match with the new metal parts. This changes the original good sealing condition to a poor sealing condition.

[0039] When the test tank is closed, the two rubber strips 1 fixed to the metal surface come into contact with each other, and the wavy parts of the two rubber strips 1 are staggered and attached to each other. That is, the protruding part of the first rubber strip 1 extends into the concave part of the second rubber strip 1. After the wavy surfaces of the two rubber strips 1 are attached, they are squeezed against each other as the test tank is closed. The buffer groove 11 plays a role in buffering and damping the contact between the two rubber strips 1, preventing the rubber strips 1 from vibrating due to excessive closing force, which could lead to displacement of the rubber strips 1. The buffer groove 11 is flattened, and the deformation of the part of the rubber strip 1 near the wavy part is greater than that of other parts. As the wavy parts of the two rubber strips 1 are flattened, their deformation extends, increasing the contact area of ​​the two rubber strips 1, increasing the sealing thickness, and improving the sealing effect. For example, if the thickness of the rubber strip 1 is 1 cm, the sealing thickness formed by the contact of the two rubber strips 1 is about 1 cm. However, due to the effect of compression and extension, the sealing thickness formed by the wavy rubber strip 1 is greater than 1 cm. If the test tank leaks, the internal gas needs to pass through a sealing thickness greater than 1 cm.

[0040] The groove 15 is located on the inner or outer ring of the rubber strip 1, depending on the actual test tank. During the opening and closing of the test tank, the rubber strip 1 is prone to dust adhesion due to its material. Moreover, if the battery is substandard and burns inside the tank, impurities will adhere to the surface of the rubber strip 1 during the cleaning of the combustion products. Therefore, when the test tank is about to be closed and sealed, the worker inserts the lubrication frame 16 into the groove 15 through the opening 17, activates the drive unit 19, and moves the lubrication frame 16 clockwise along the groove 15. The drive unit 19 drives the lubrication shaft 18 to reverse, that is, the lubrication shaft 18 moves forward and rotates counterclockwise. The lubrication shaft 18 drives the cleaning block 2 to rotate. The cleaning block 2 moves forward and rotates to scrape out the impurities on the surface and in the recesses of the rubber strip 1, cleaning the rubber strip 1 and preventing the rubber strip 1 from being affected by the presence of impurities.

[0041] As the lubrication frame 16 moves clockwise and approaches the opening 17 again, the worker moves the lubrication frame 16 counterclockwise. The worker applies the lubricant stored in the lubrication frame 16 to the cleaning block 2. The cleaning block 2 evenly applies the lubricant to the wavy surface of the rubber strip 1. On the one hand, this prevents the two rubber strips 1 from sticking together after the high-temperature test, avoiding tearing and protecting the rubber strip 1 while improving the sealing effect. On the other hand, applying lubricant to the surface of the rubber strip 1 forms an oil film on the surface of the rubber strip 1, reducing the degree of oxidation of the rubber strip 1 when exposed to air during the high-temperature test. This prevents the rubber strip 1 from being over-oxidized and developing a hard layer, which could cause microcracks during compression sealing and affect the sealing effect.

[0042] When the lubrication frame 16 moves counterclockwise and approaches the opening 17 again, the worker can move the lubrication frame 16 out of the slide groove 15 through the opening 17 to close and seal the door. That is, before closing the test tank, the lubrication frame 16 can be rotated clockwise and counterclockwise once along the rubber strip 1. This is convenient for workers to use, can improve the sealing effect, and can also protect the rubber strip 1 and extend its service life.

[0043] Furthermore, the use of the lubrication frame 16 ensures that the cleaning block 2 maintains a stable contact force with the rubber strip 1 throughout the cleaning process. Compared to manual cleaning by workers, the lubrication frame 16 maintains a consistent cleaning force, preventing damage to the rubber strip 1 due to excessive force or incomplete cleaning due to insufficient force, thereby improving the cleaning effect and thus the sealing effect. In addition, the lubricant is applied with a consistent force, improving the uniformity of lubricant application.

[0044] Example 2:

[0045] Based on Embodiment 1, the rubber strip 1 is provided with a storage ring 21, and the storage ring 21 has a square cross-section. The storage ring 21 is far away from the buffer groove 11, and the storage ring 21 stores foaming agent. The inner surface of the storage ring 21 is uniformly provided with storage holes 22, and a nozzle 23 is slidably connected to the inner wall of the storage hole 22. The nozzle 23 is connected to the inner wall of the outer ring of the storage ring 21 by a spring, and one end of the nozzle 23 is connected to the inner wall of the outer ring of the storage ring 21 by rubber, so as to achieve a state of balance between the thrust and tension of the nozzle 23. The inner wall of the outer ring of the storage ring 21 is uniformly provided with sealing plugs 24, and one end of the sealing plug 24 is located inside the nozzle 23. One end of the nozzle 23 is a pointed tip and faces the center of the ring around which the rubber strip 1 is surrounded.

[0046] The storage ring 21 is uniformly provided with pressure relief pipes 25 on its outer ring, and one end of the pressure relief pipe 25 is bent towards the space between the rubber strip 1 and the test tank shell;

[0047] The outer ring of the rubber strip 1 is provided with a compression ring 26, and the edge of the compression ring 26 away from the rubber strip 1 contacts the surface of the test tank body. The compression ring 26, the rubber strip 1 and the surface of the test tank body form an annular internal space, and the bent end of the pressure relief pipe 25 is located in this space.

[0048] Foaming agents, such as polyurea foaming agents, have the characteristic of rapid curing and can form a high-strength foam layer in a short time. Spraying polyurea foaming agent on the surface of the test tank can form a strong sealing and protective layer to prevent abnormal chemical generation of the battery during the high-temperature test inside the tank, which could cause leakage. Moreover, the foaming agent will not damage or corrode the fluororubber when in contact with it. One end of the nozzle 23 is connected to the inner wall of the outer ring of the storage ring 21 through rubber. The rubber used has an adhesive function, such as an alloy adhesive containing metals such as bismuth and tin. It can maintain the connection strength at room temperature, but when the temperature rises to near its melting point, that is, below the melting point of fluororubber, the metal will melt, the adhesive will lose its adhesiveness, and the connection will break. This breaks the balance between the thrust and pull of the nozzle 23, and the nozzle 23 is ejected by the spring. The extrusion ring 26 can be pre-attached to the outer ring of the rubber strip 1 with a high-strength, high-temperature resistant adhesive.

[0049] Specific workflow: During the test, if the battery malfunctions and catches fire, it will generate a large amount of heat in a short time, and the electrolyte will evaporate and decompose, easily causing safety hazards. The conventional rubber strip 1 will soften and lose its sealing effect under such high temperatures. Therefore, when the test tank reaches an abnormally high temperature, the storage ring 21, being made of metal with good thermal conductivity, causes the rubber or adhesive bonded to the nozzle 23 inside the storage ring 21 to lose its stickiness. The balance between the thrust and pull forces of the nozzle 23 is broken, and the nozzle 23 is ejected by the spring. The nozzle 23 slides along the sealing plug 24 away from the storage ring 21. At this time, the tip of the nozzle 23 pierces the rubber strip 1. At this time, the tip of the nozzle 23 is located inside the test tank. The other end of the nozzle 23 slides apart from the sealing plug 24. The sealing plug 24 no longer seals the nozzle 23. The foaming agent in the storage ring 21 sprays foaming agent onto the inner surface of the rubber strip 1. The foaming agent quickly fills and covers the opening 17 of the test tank. After the foaming agent solidifies, it forms a strong sealing protective layer to prevent the chemical substances in the test tank from flowing out. On the one hand, it avoids the softening or ignition of fluororubber. On the other hand, it improves the sealing effect of the opening 17 when the test tank is at an abnormal high temperature, thereby improving safety.

[0050] Furthermore, when installing the rubber strip 1, the storage ring 21 can be fixed to the opening 17 of the test tank by welding or bonding, and then the rubber strip 1 can be glued and installed. Alternatively, when installing the rubber strip 1, the side of the storage ring 21 can be located in the mounting groove 12, and one side surface of the storage ring 21 can contact the mounting surface of the test tank through the mounting groove 12. The connection and sealing can be achieved through the glue in the glue bladder 13. By installing in the above manner, the distance between the storage ring 21 and the metal shell of the test tank is reduced, the heat transfer effect is improved, the sensitivity of the storage tank to high temperature is increased, and the nozzle 23 can be ejected in time, thus improving the flame retardant protection effect.

[0051] Furthermore, if the test tank experiences a high-temperature anomaly under high pressure, the test tank will be under high pressure. After the nozzle 23 punctures the rubber strip 1, the nozzle 23 will detach from the sealing plug 24. The gas inside the test tank will flow back into the storage ring 21 through the nozzle 23, instantly increasing the gas pressure inside the storage ring 21. After the gas pressure becomes excessive, the pressure relief pipe 25 will open, and the foaming agent inside the storage ring 21 will be sprayed onto the outer surface of the rubber strip 1 through the pressure relief pipe 25. The foaming agent will then be sprayed onto the outer ring of the rubber strip 1. At this time, the foaming agent will contact the outer ring of the rubber strip 1 and the shell at the opening 17 of the test tank. The foaming agent will quickly solidify on the outer ring of the rubber strip 1 to form a sealing layer, improving the sealing effect of the rubber strip 1, thereby improving the sealing effect of the sealing structure on the test tank. Moreover, due to the increased gas pressure inside the storage ring 21, the foaming agent will be sprayed out at a faster speed, allowing the sealing structure to form a sealing layer on the outer ring of the rubber strip 1 more quickly.

[0052] By setting the extrusion ring 26, the extrusion ring 26, the rubber strip 1, and the surface of the test tank form an annular space, and the bent end of the pressure relief pipe 25 is located in this space, so that the foaming agent sprayed through the pressure relief pipe 25 can gather on the outer ring of the rubber strip 1, avoiding the foaming agent from scattering instantly when sprayed, which would result in poor sealing layer formation and thus affect the sealing effect.

[0053] Example 3:

[0054] Based on Embodiment 2, elastic rods 27 are uniformly provided on the inner wall of the extrusion ring 26, and the elastic rods 27 are bent toward the outside of the extrusion ring 26;

[0055] One end of the elastic rod 27 is connected to the rubber strip 1, and the other end is provided with barbs 28 and contacts the surface of the test tank body;

[0056] The elastic rod 27 is a conventional high-temperature resistant plastic rod or metal rod. Before installing the extrusion ring 26 onto the outer ring of the rubber strip 1, the elastic rod 27 is first installed on the inner or outer surface of the extrusion ring 26 by means of bonding or other connection methods.

[0057] Specific workflow: When the test tank is closed and sealed, one edge of the compression ring 26 contacts the rubber strip 1, and the other side contacts the test tank shell. As the compression sealing action occurs at the test tank opening 17, the compression ring 26 is compressed and bent, and the elastic rod 27 is also compressed and bent towards the center. Guided by the elastic rod 27, the compression ring 26 can bend and deform in a centrally arched state. At this time, the compression ring 26 is bent into a regular ring with an arc cross-section. This avoids the compression ring 26 from being unable to control its bending shape during the compression process, which would prevent the compression ring 26 from bending into a complete arc shape, reduce the degree of contact and sealing between the compression ring 26 and the surface of the test tank shell, and cause a large gap between the compression ring 26 and the surface of the test tank shell. This would result in a large amount of foaming agent overflowing from this gap, thereby improving the effect of the foaming agent forming on the outer ring of the rubber strip 1, and thus improving the sealing effect of the sealing structure under high temperature and high pressure.

[0058] When one end of the elastic rod 27 contacts the test tank shell, the barb 28 also contacts the test tank shell. When the elastic rod 27 bends, the barb 28 increases the frictional force between one end of the elastic rod 27 and the test tank shell because its tip pierces the surface of the test tank shell. This prevents the foaming agent from being sprayed into the internal space enclosed by the extrusion ring 26. If the frictional force on the test tank shell is too small, the elastic rod 27 will easily slide on the test tank shell and form a large amount of foaming agent, resulting in excessive foaming agent overflow and reducing the sealing effect after curing.

[0059] Furthermore, after sealing, to improve the sealing effect, workers can apply adhesive to the contact area between the extrusion ring 26 and the test tank shell, and stick one edge of the extrusion ring 26 to the test tank shell. After the test is completed, the two can be separated. On the one hand, the extrusion ring 26 and the test tank shell are completely sealed by adhesive, and the space where the two rubber strips 1 are in contact is completely sealed, so as to avoid the contact surface of the two rubber strips 1 from leaking air due to impurities or damage. On the other hand, complete sealing can prevent the chemical substances inside the test tank from flowing out through the contact surface of the two rubber strips 1 under high temperature and high pressure.

[0060] Example 4:

[0061] Based on Embodiment 3, scraper blades 3 are evenly provided on the inner wall of the mounting groove 12, and one side of the scraper blades 3 contacts the door frame of the test tank. A protrusion 32 is provided in the mounting groove 12, and the protrusion 32 is close to the opening 17 of the mounting groove 12.

[0062] The scraper 3 is provided with comb teeth 31 on the side away from the inner wall of the mounting groove 12;

[0063] Specific workflow: When the adhesive bladder 13 is punctured and the adhesive flows out, the adhesive flows in the mounting groove 12. However, due to the viscosity of the adhesive, it takes too long for it to flow and coat the entire mounting groove 12, which increases the installation time of the rubber strip 1. Therefore, by setting a scraper 3, the rubber strip 1 is slowly rotated or moved while the adhesive flows, while the installation part at the opening 17 of the test tank is fixed. The rubber strip 1 drives the scraper 3 to scrape the adhesive in the mounting groove 12, promoting the adhesive to coat the surface between the mounting groove 12 and the installation position of the test tank, thus speeding up the installation efficiency. In addition, the scraper 3 can also scrape the adhesive to ensure that it is evenly coated, avoiding uneven application of adhesive, forming voids, etc., which would affect the sealing effect.

[0064] By setting the comb teeth 31, the scraper 3 drives the comb teeth 31 to scrape the adhesive along the surface of the test tank installation position. Part of the adhesive is scraped by the scraper 3, and the other part of the adhesive flows out from the gaps in the comb teeth 31 and adheres to the surface of the test tank installation position, so as to avoid the surface adhesive being too small after the scraper 3 scrapes, which would affect the bonding effect.

[0065] As the adhesive is about to flow out of the mounting groove 12, the adhesive gathers at the contact point between the protrusion 32 and the test tank due to the close contact between the protrusion 32 and the test tank. After the adhesive cures, it forms a sealing ring, which improves the sealing effect of the mounting position and the adhesive connection effect, thus preventing loosening.

[0066] Example 5:

[0067] Based on Embodiment 4, one side of the cleaning block 2 is wavy, and the wavy part of the cleaning block 2 is provided with an intercepting plate 33;

[0068] The lubrication frame 16 is rotatably connected to a rotating shaft 34, and the rotating shaft 34 is fixed in the lubrication frame 16 by a locking pin. A lubrication plate 35 is provided on the rotating shaft 34, and cleaning fluid and lubricant are stored in the interior of both sides of the lubrication plate 35 respectively. The two sides of the lubrication plate 35 are in a wavy shape and contact the wavy surface of the rubber strip 1.

[0069] The rotating shaft 34 is fixed in the lubrication frame 16 by a conventional locking structure with a snap-fit. When cleaning the rubber strip 1, the worker unlocks the rotating shaft 34, and the rotating shaft 34 rotates to rotate the lubrication plate 35, which stores the cleaning fluid, to contact the surface of the rubber strip 1, so that the cleaning fluid can contact the rubber strip 1. The cleaning fluid is a quick-drying solvent commonly used for cleaning fluororubber. When lubricating the rubber strip 1, the worker unlocks the rotating shaft 34, and the rotating shaft 34 rotates to rotate the lubrication plate 35, which stores the lubricant, to contact the surface of the rubber strip 1, so that the lubricant can contact the rubber strip 1. The lubricant is a conventional lubricant used for lubricating fluororubber.

[0070] Specific workflow: When the cleaning block 2 scrapes the wavy surface of the rubber strip 1, the intercepting plate 33 uses a digging action to dig out the impurities in the gaps of the wavy surface of the rubber strip 1 and put them between the intercepting plate 33 and the cleaning block 2. This prevents the impurities from rubbing and sliding on the surface of the rubber strip 1 for a long time due to scraping, which would cause damage to the surface of the rubber strip 1. This reduces the damage to the surface of the rubber strip 1 and improves the sealing effect of the rubber strip 1.

[0071] When cleaning the rubber strip 1, the lubrication plate 35 is located in front of the moving direction of the cleaning block 2. At this time, the lubrication plate 35 rotates until the part containing the cleaning fluid contacts the rubber strip 1. The cleaning fluid wets the rubber strip 1, reducing friction and static electricity. Combined with the scraping cleaning action, the cleanliness of the rubber strip 1 is improved.

[0072] When lubricating rubber strip 1, the lubrication plate 35 rotates to contact the rubber strip 1 with the part containing the cleaning fluid. The cleaning fluid wets the rubber strip 1, reducing friction and static electricity. Combined with the scraping cleaning action, the lubrication plate 35 is located behind the cleaning block 2 in the direction of movement. The cleaning block 2 removes the residual cleaning fluid on the rubber strip 1. The lubrication plate 35 then applies lubricant to the dry surface of the rubber strip 1, improving the lubrication of the rubber strip 1 and promoting better interlacing and adhesion of the wavy surfaces of the two rubber strips 1, thereby improving the contact sealing and thus improving the sealing effect.

[0073] Furthermore, in order to improve the drying effect of the cleaning block 2 on the surface of the rubber strip 1, the workers can, for example, place a drying cotton at the bottom of the cleaning block 2. When the cleaning block 2 dries the rubber strip 1, the drying cotton contacts the rubber strip 1 before the intercepting plate 33, and absorbs and wipes the cleaning liquid remaining in the gaps of the rubber strip 1, thereby improving the drying effect.

[0074] Furthermore, since the two sides of the lubrication plate 35 are wavy and contact the wavy surface of the rubber strip 1, it helps the cleaning fluid or lubricant to enter the gaps in the wavy surface of the rubber strip 1, thus improving the working effect.

[0075] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a battery test tank, characterized in that, include: A rubber strip (1) is installed on the surface of the door frame and the main body of the test tank. Buffer grooves (11) are evenly distributed in the rubber strip (1). The sides of the rubber strips (1) that are close to each other are wavy and interlocked. An installation groove (12) is provided inside the rubber strip (1). The rubber strip (1) is installed to the test tank through the installation groove (12). The installation groove (12) is far from the buffer groove (11). A liquid bladder (13) is provided inside the installation groove (12). The liquid bladder (13) stores liquid. Pointed blocks (14) are evenly distributed near the opening (17) of the installation groove (12) of the liquid bladder (13). The pointed blocks (14) face the liquid bladder (13). A chute (15) is provided on the surface of the test tank door frame and the main body. A rubber strip (1) is located between two annular chute (15) on the test tank door frame. A lubrication frame (16) is slidably connected in the chute (15). An opening (17) is provided at one end of the chute (15). A lubrication shaft (18) is rotatably connected in the lubrication frame (16). The lubrication shaft (18) is connected to a drive component (19) provided on the lubrication frame (16). Cleaning blocks (2) are evenly provided on the outer ring of the lubrication shaft (18). The cleaning blocks (2) contact the two protruding gaps in the rubber strip (1). The lubrication frame (16) stores lubricant. The cleaning blocks (2) contact the lubricant.

2. The battery test tank sealing structure according to claim 1, characterized in that: The rubber strip (1) is provided with a storage ring (21), and the cross-section of the storage ring (21) is square. The storage ring (21) is far away from the buffer groove (11), and the storage ring (21) stores foaming agent. The inner surface of the storage ring (21) is uniformly provided with storage holes (22), and a nozzle (23) is slidably connected to the inner wall of the storage hole (22). The nozzle (23) is connected to the inner wall of the outer ring of the storage ring (21) by a spring, and one end of the nozzle (23) is connected to the inner wall of the outer ring of the storage ring (21) by rubber, so as to achieve a state of balance between the thrust and tension of the nozzle (23). The inner wall of the outer ring of the storage ring (21) is uniformly provided with sealing plugs (24), and one end of the sealing plug (24) is located inside the nozzle (23). One end of the nozzle (23) is a pointed tip and faces the center of the ring surrounding the rubber strip (1).

3. The battery test tank sealing structure according to claim 2, characterized in that: The storage ring (21) is uniformly provided with pressure relief pipes (25) on its outer ring, and one end of the pressure relief pipe (25) is bent towards the rubber strip (1) and the test tank shell.

4. The battery test tank sealing structure according to claim 3, characterized in that: The rubber strip (1) has an outer ring of compression ring (26), and the edge of compression ring (26) away from the rubber strip (1) contacts the surface of the test tank body. Compression ring (26), rubber strip (1) and surface of test tank body form an annular internal space, and the bent end of pressure relief pipe (25) is located in this space.

5. The battery test tank sealing structure according to claim 4, characterized in that: The inner wall of the extrusion ring (26) is uniformly provided with elastic rods (27), and the elastic rods (27) are bent outwards from the extrusion ring (26).

6. The battery test tank sealing structure according to claim 5, characterized in that: One end of the elastic rod (27) is connected to the rubber strip (1), and the other end is provided with barbs (28) and contacts the surface of the test tank body.

7. The battery test tank sealing structure according to claim 1, characterized in that: The inner wall of the mounting groove (12) is uniformly provided with scraper blades (3), and one side of the scraper blades (3) contacts the door frame of the test tank.

8. The battery test tank sealing structure according to claim 7, characterized in that: The scraper (3) has comb teeth (31) on the side away from the inner wall of the mounting groove (12), and a protrusion (32) is provided in the mounting groove (12), with the protrusion (32) close to the opening (17) of the mounting groove (12).

9. The battery test tank sealing structure according to claim 1, characterized in that: The cleaning block (2) has a wavy shape on one side, and the wavy part of the cleaning block (2) is provided with an intercepting plate (33).

10. A battery test tank sealing structure according to claim 9, characterized in that: The lubrication frame (16) is rotatably connected to a rotating shaft (34), and the rotating shaft (34) is fixed in the lubrication frame (16) by a locking pin. A lubrication plate (35) is provided on the rotating shaft (34), and cleaning fluid and lubricant are stored in the interior of both sides of the lubrication plate (35). The two sides of the lubrication plate (35) are in a wavy shape and contact the wavy surface of the rubber strip (1).

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