A device for detecting the sealing performance of a product
Patent Information
- Application Number
- CN202521829807.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-08-26
AI Technical Summary
[0004]然而，扣钩与扣环的搭接结构仅能在单一方向形成锁紧约束，进行高压测试时，筒体内的压力作用于筒盖，可能会产生向上的作用力，此时扣钩与扣环的搭接处可能难以充分抵消这种向上的力，存在瞬时脱扣的潜在风险，进而可能干扰对产品防水性能的准确检测
1.铰接杆32与压杆31固定连接，卡接座33设置于筒身12外壁，铰接杆32与卡接座33卡接配合，以通过压杆31将筒盖11压至筒身12，这种卡接配合通过接触面相互咬合形成多向约束，结合铰接杆32的力臂传递，能将压杆31对筒盖11的下压力转化为持续对抗向上作用力的反向约束力，可有效抵抗试水筒1身内部压力导致的筒盖11上抬趋势，从而保证筒身12内压力稳定，减少因筒盖11松动造成的压力异常，确保产品防水性能检测的准确性；
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Figure CN224667200U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of product water tightness testing technology, and in particular to a device for testing the sealing performance of products. Background Technology
[0002] In the field of product testing, with the rapid development of the electronics and automotive industries, the market's performance requirements for various products are constantly increasing. Product quality testing has become a key link in ensuring product reliability. Among the many testing projects, the waterproof performance testing of waterproof products is particularly important, especially in the fields of outdoor electronic products, automotive lighting, and household appliances. The waterproof performance of products is directly related to their service life and safety. Therefore, the requirements for the accuracy and effectiveness of waterproof performance testing are becoming increasingly stringent, and the demand for related testing continues to rise.
[0003] In the relevant technology, the hook is fixed to the cylinder cover by bolts, the buckle ring is pivotally connected to the handle by a rotating pin, the rotating pin passes through the handle and is locked by an adjusting nut, the support seat is installed on the cylinder body by bolts, and the handle is hinged to the support seat by rivets. During operation, after initially aligning the cylinder cover and the cylinder body, the buckle ring is fastened to the hook, and pressing down the handle can quickly lock the cylinder cover and the cylinder body. The handle is then turned in the opposite direction and disengaged from the hook to unlock.
[0004] However, the overlapping structure of the hook and the ring can only form a locking constraint in one direction. During high-pressure testing, the pressure inside the cylinder acts on the cylinder cover, which may generate an upward force. At this time, the overlapping part of the hook and the ring may not be able to fully counteract this upward force, posing a potential risk of instantaneous disengagement, which may interfere with the accurate testing of the product's waterproof performance. Utility Model Content
[0005] To address the aforementioned issues, this application provides a device for testing the sealing performance of products.
[0006] The technical solution provided in this application for a product sealing performance testing device adopts the following: A device for testing the sealing performance of a product includes a test tube 1 and a fixing assembly 3. The test tube 1 includes a tube cover 11 and a tube body 12. The fixing assembly 3 includes a pressure rod 31, a hinge rod 32, and a locking seat 33. The hinge rod 32 and the pressure rod 31 are fixedly connected. The locking seat 33 is disposed on the outer wall of the tube body 12. A locking block 322 is provided at the end of the hinge rod 32 away from the pressure rod 31. The pressure rod 31 presses the tube cover 11 against the tube body 12. The end of the hinge rod 32 away from the pressure rod 31 engages with the locking seat 33.
[0007] By adopting the above technical solution, the hinge rod 32, at the end away from the pressure rod 31, forms a snap-fit with the snap-fit seat 33. Through the contact surface between the hinge rod 32 and the snap-fit seat 33, a constraint is formed. With the force arm transmission of the hinge rod 32, the downward pressure of the pressure rod 31 on the cylinder cover 11 can be converted into a reverse constraint force that continuously resists the upward force of the snap-fit seat 33. This snap-fit connection has higher connection strength and can reliably resist the tendency of the cylinder cover 11 to lift due to the internal pressure of the test cylinder 1, thereby ensuring the stability of the internal pressure of the cylinder 12, reducing the pressure abnormality caused by the loosening of the cylinder cover 11, and ensuring the accuracy of the waterproof performance test of the product.
[0008] Preferably, a snap-fit block 322 is provided at the end of the hinge rod 32 away from the pressure rod 31. The snap-fit block 322 and the snap-fit seat 33 are snapped together, and the upper surface of the snap-fit block 322 abuts against the lower surface of the snap-fit seat 33.
[0009] By adopting the above technical solution, when the cap 11 is subjected to the internal pressure of the cylinder body 12 and generates an upward force, the force will be transmitted through the cap 11 to the pressure rod 31. The upper surface of the locking block 322 abuts against the lower surface of the locking seat 33. The locking block 322 continuously resists the reverse constraint force against the locking seat 33, which can resist the tendency of the cap 11 to rise due to the internal pressure of the test cylinder 1, thereby ensuring the reliable sealing between the cap 11 and the cylinder body 12 and the stability of the internal pressure of the cylinder body 12, and ensuring the accuracy of the waterproof performance test of the product. Preferably, the fixing component 3 further includes a first hinge seat 34, which is fixed to the outer wall of the cylinder body 12. The end of the pressure rod 31 near the cylinder cover 11 is rotatably supported by the hinge seat. An eccentric wheel 323 is provided at the end of the hinge rod 32 away from the locking block 322. The end of the pressure rod 31 away from the cylinder cover 11 is fixedly connected to the eccentric wheel 323.
[0010] By adopting the above technical solution, the first hinge seat 34 provides a stable rotation fulcrum for the pressure rod 31. When the hinge rod 32 is moved toward the cylinder body 12, the eccentric wheel 323 can generate continuous force through the eccentricity. Due to the fixed connection between the eccentric wheel 323 and the pressure rod 31, the pressure rod 31 is driven to rotate around the first hinge seat 34 toward the cylinder cover 11, pressing the cylinder cover 11 onto the cylinder body 12, ensuring reliable sealing between the cylinder cover 11 and the cylinder body 12 and stable internal pressure of the cylinder body 12, thereby ensuring the accuracy of the product's waterproof performance test.
[0011] Preferably, the fixing component 3 further includes a second hinge seat 35, on which the eccentric wheel 323 is rotatably supported.
[0012] By adopting the above technical solution, the second hinge seat 35 provides a stable rotation support point for the eccentric wheel 323, so that the eccentric wheel 323 will not deviate or wobble during rotation. This ensures that the clamping force generated by the eccentric wheel 323 through the eccentricity can be stably transmitted to the pressure rod 31, thereby causing the pressure rod 31 to press the cylinder cover 11 onto the cylinder body 12. This stable support structure enhances the stability of the force-increasing effect of the eccentric wheel 323 and can more effectively resist the upward force of the internal pressure of the cylinder body 12 on the cylinder cover 11, ensuring the stability of the internal pressure of the cylinder body 12, thereby ensuring the accuracy of the product's waterproof performance test. Preferably, it also includes a support frame 2, the cylindrical body 12 is built into the support frame 2, and the upper end of the support frame 2 is fixedly connected to the upper end of the cylindrical body 12.
[0013] By adopting the above technical solution, the internal pressure of the cylinder 12 may cause the cylinder 12 to expand outward, which may affect the sealing fit with the cylinder cover 11. The support frame 2 houses the cylinder 12 and the upper end of the support frame 2 is fixedly connected to the upper end of the cylinder 12, which can form a rigid support for the cylinder 12 from the outside. In particular, it strengthens the structural stability of the upper end of the cylinder 12, reduces the abnormal force on the fixing component 3 of the cylinder cover 11 and the cylinder 12 due to the deformation of the cylinder 12, and further ensures the stability of the internal pressure of the test cylinder 1 during the test, thus ensuring the accuracy of the waterproof performance test of the product.
[0014] Preferably, the fixing component 3 is mounted on the support frame 2.
[0015] By adopting the above technical solution, when the fixing component 3 is installed on the support frame 2, it can provide a more stable support foundation for the fixing component 3, reducing the impact of the slight deformation of the cylinder body 12 under high pressure on the fixing component 3. This makes the clamping force of the fixing component 3 on the cylinder cover 11 more stable, and can more effectively resist the upward force of the pressure inside the cylinder body 12 on the cylinder cover 11, ensuring the sealing effect between the cover and the cylinder body 12 and the stability of the pressure inside the test cylinder 1, thereby ensuring the accuracy of the product's waterproof performance test. Preferably, it also includes an air pipe 7, which is connected to the interior of the test tube 1 and externally connected to a gas supply device.
[0016] By adopting the above technical solution, the air pipe 7 can stably introduce the compressed air generated by the gas supply device into the test tube 1, providing a continuous air source for positive pressure testing in simulated deep water environment, ensuring that the pressure inside the test tube 1 can be accurately adjusted according to the test requirements, thereby ensuring that the sealing fit between the tube cover 11 and the tube body 12 is effectively tested under pressure, and ensuring the accuracy and reliability of the waterproof performance test of the product. Preferably, the controller 4 is used to control the air pressure change of the test tube 1.
[0017] By adopting the above technical solution, when the controller 4 controls the air pressure change of the test tube 1, the pressure inside the test tube 1 generates an upward force on the cover, and the fixing component 3 bears the force to ensure that the sealing tube cover 11 and the tube body 12 are sealed.
[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. The hinge rod 32 is fixedly connected to the pressure rod 31, and the snap-fit seat 33 is set on the outer wall of the cylinder body 12. The hinge rod 32 and the snap-fit seat 33 are snap-fitted together so that the cylinder cover 11 is pressed to the cylinder body 12 by the pressure rod 31. This snap-fit is formed by the interlocking of the contact surfaces to form a multi-directional constraint. Combined with the force arm transmission of the hinge rod 32, the downward pressure of the pressure rod 31 on the cylinder cover 11 can be transformed into a reverse constraint force that continuously resists the upward force. This can effectively resist the upward tendency of the cylinder cover 11 caused by the internal pressure of the test cylinder 1, thereby ensuring the stability of the internal pressure of the cylinder body 12, reducing the pressure abnormality caused by the loosening of the cylinder cover 11, and ensuring the accuracy of the waterproof performance test of the product. 2. The snap-fit block 322 and the snap-fit seat 33 are engaged and the upper surface of the snap-fit block 322 abuts against the lower surface of the snap-fit seat 33. When the cylinder cover 11 is subjected to the internal pressure of the cylinder body 12 and generates an upward force, the force is transmitted to the pressure rod 31 through the cylinder cover 11. The abutment between the upper surface of the snap-fit block 322 and the lower surface of the snap-fit seat 33 causes the snap-fit block 322 to continuously resist the reverse constraint force against the snap-fit seat 33. This can resist the tendency of the cylinder cover 11 to rise due to the internal pressure of the test cylinder 1, thereby ensuring the reliable sealing between the cylinder cover 11 and the cylinder body 12 and the stability of the internal pressure of the cylinder body 12, and ensuring the accuracy of the waterproof performance test of the product. 3. The first hinge seat 34 provides a stable rotation fulcrum for the pressure rod 31. When the hinge rod 32 is rotated, the eccentric wheel 323 is driven to rotate. The eccentric wheel 323 can generate continuous force through the eccentricity, driving the pressure rod 31 to rotate around the first hinge seat 34 towards the cylinder cover 11 to press the cylinder cover 11 onto the cylinder body 12, thereby ensuring reliable sealing between the cylinder cover 11 and the cylinder body 12 and stable internal pressure, and ensuring the accuracy of the product's waterproof performance test. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of an embodiment of this application.
[0020] Figure 2 yes Figure 1 An enlarged diagram of A in the diagram.
[0021] Figure 3 This is a schematic diagram of the internal structure of test tube 1.
[0022] Explanation of reference numerals in the attached drawings: 1. Test tube; 11. Tube cover; 111. Handle; 12. Tube body; 2. Support frame; 21. Support frame; 22. Frame; 3. Fixing component; 31. Pressure rod; 311. Pressure block; 312. Connecting part; 32. Hinge rod; 321. Rod body; 322. Snap-fit block; 323. Eccentric wheel; 33. Snap-fit seat; 34. First hinge seat; 35. Second hinge seat; 4. Controller; 5. Placement frame; 6. Strap; 7. Air tube. Detailed Implementation
[0023] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0024] This application discloses a device for testing the sealing performance of products. (Refer to...) Figure 1 A device for testing the sealing performance of a product includes a test tube 1 and an air pipe 7. The air pipe 7 is connected to the inside of the test tube 1 and is externally connected to an air pressure supply device. The air pressure supply device supplies gas to the inside of the test tube 1 through the air pipe 7, forming an air pressure environment inside the test tube 1 that is higher than the external environment. This puts the gas inside the test tube 1 under pressure, thus facilitating the testing of the product's sealing performance.
[0025] Specifically, the test tube 1 includes a tube body 12, the outer wall of which is transparent. In this embodiment, the outer wall of the tube body 12 is made of glass. The advantage of the transparent material is that the staff can clearly observe the internal condition of the tube body 12. The water tightness tester also includes a support frame 2, which includes a frame 22 and a support frame 21. The support frame 21 has three supports. The support frame 21 is fixedly connected to the lower surface of the frame 22. The tube body 12 is built into the support frame 2, the outer wall of the tube body 12 abuts against the support frame 21, and the frame 22 is fixedly connected to the upper end of the tube body 12.
[0026] Furthermore, the water cylinder also includes a cylinder cover 11, which is hinged to the upper edge of the cylinder body 12. The air pipe 7 is fixedly connected to the cylinder cover 11 and is connected to the interior of the cylinder body 12 through the cylinder cover 11. The water tightness testing machine in this embodiment also includes a fixing component 3. The cylinder cover 11 is fixedly covered to the cylinder body 12 through the fixing component 3. The lower surface of the cylinder cover 11 abuts against the upper surface of the frame 22. This arrangement can make the test cylinder 1 form a relatively sealed space, which is more conducive to testing. In this embodiment, there are three sets of fixing components 3, which are fixed on three support frames 21. The fixing components 2 and the support frames 21 are evenly distributed on the outer peripheral wall of the cylinder body 12.
[0027] Reference Figure 2Furthermore, the fixing component 3 includes a pressure rod 31, a hinge rod 32, and a locking seat 33. The pressure rod 31 includes a pressure block 311 and a connecting part 312. The pressure block 311 and the connecting part 312 are fixedly connected. The pressure block 311 is a rectangular block used to press the cylinder cover 11 onto the cylinder body 12. The end of the connecting part 312 away from the pressure block 311 is used to be fixedly connected to the hinge rod 32. The hinge rod 32 includes a rod body 321 and a locking block 322. The locking block 322 and the locking seat 33 have elastic deformation. The locking block 322 is located at the end of the rod body 321 away from the pressure rod 31. The locking block 322 is integrally formed with the rod body 321. The locking seat 33 is located on the outer wall of the cylinder body 12. The pressure block 311 presses the cylinder cover 11 onto the cylinder body 12. Due to the elastic deformation of the locking block 322 and the locking seat 33, the locking block 322 and the locking seat 33 are engaged.
[0028] Meanwhile, the fixing component 3 also includes a first hinge seat 34 and a second hinge seat 35. The first hinge seat 34 is fixed to the outer wall of the cylinder 12. The connecting part 312 is rotatably supported by the first hinge seat 34, so that the pressure rod 31 can rotate around the first hinge seat 34. The hinge rod 32 also includes an eccentric wheel 323. The eccentric wheel 323 is located at the end of the hinge rod 32 away from the locking block 322. The end of the connecting part 312 away from the pressure block 311 is fixedly connected to the eccentric wheel 323. Moving the hinge rod 32 causes the eccentric wheel 323 to rotate, which will drive the pressure rod 31 to rotate around the first hinge seat 34. The eccentric wheel 323 rotates and is supported by the second hinge seat 35. The second hinge seat 35 is fixed to the outer wall of the cylinder 12, so that the eccentric wheel 323 can rotate smoothly.
[0029] This explains that when a watertight test is required, the cylinder cover 11 is placed on the cylinder body 12, and then the hinge rod 32 is moved to further rotate the eccentric wheel 323. Since the eccentric wheel 323 is fixedly connected to the connecting part 312, it drives the connecting part 312 to swing. Since the connecting part 312 is fixedly connected to the pressure block 311, it further moves the pressure block 311 toward the cylinder cover 11. The pressure block 311 presses the cylinder cover 11 tightly to the cylinder body 12. At the same time, the snap-fit block 322 and the snap-fit seat 33 snap-fit together, and the upper surface of the snap-fit block 322 and the lower surface of the snap-fit seat 33 abut against each other.
[0030] Furthermore, when the internal pressure of the test tube 1 acts on the tube cover 11, the force is transmitted to the pressure rod 31 through the tube cover 11. At this time, the tight contact between the upper surface of the locking block 322 and the lower surface of the locking seat 33 further strengthens the force transmission path, so that the downward pressure of the pressure rod 31 can be effectively converted into a reverse constraint force on the locking block 322 against the locking seat 33. This reliably resists the upward tendency of the tube cover 11 caused by the internal pressure of the tube body 12, ensures the sealing stability between the tube cover 11 and the tube body 12, maintains the constant pressure inside the tube body 12, and ultimately ensures the accuracy of the product waterproof performance test results.
[0031] Furthermore, the water tightness testing machine also includes a controller 4. The controller 4 is used to control the air pressure changes in the test tube 1 and can flexibly adjust the positive and negative pressure states inside the test tube 1. Under positive pressure, the pressure inside the test tube 1 exerts an upward force on the cover, and the fixing component 3 needs to withstand this force to ensure a seal. Under negative pressure, the external air pressure exerts a downward pressure on the cover, which can help the fixing component 3 to enhance the fit between the cover and the tube body 12, ensuring that the fixing component 3 can function stably in both positive and negative pressure testing scenarios, and ensuring the safety and accuracy of the testing process.
[0032] Reference Figure 3 On the other hand, a placement rack 5 is provided inside the cylinder body 12. The controller 4 controls the placement rack 5 to slide vertically inside the cylinder body 12, so that the product can be easily put into or taken out of the test tube 1. The placement rack 5 is provided with a strap 6 to fix the product and reduce the product from shaking or floating during the testing process. A handle 111 is provided at the hinge point between the cylinder cover 11 and the cylinder body 12, so that the staff can easily open or close the cylinder cover 11.
[0033] The implementation principle of a product sealing performance testing device according to an embodiment of this application is as follows: Place the product to be tested on the rack 5 inside the cylinder 12, secure the product with the strap 6, close the cylinder cover 11, operate the handle 111 to close the cylinder cover 11 onto the cylinder 12, move the hinge rod 32 to drive the eccentric wheel 323 to rotate, further drive the pressure rod 31 to rotate around the first hinge seat 34, the pressure block 311 moves towards the cylinder cover 11 and presses the pressure block 311 against the cylinder 12, at the same time the snap-fit block 322 engages with the snap-fit seat 33, and the upper surface of the snap-fit block 322 abuts against the lower surface of the snap-fit seat 33.
[0034] The air pressure supply device injects air pressure into the sealed cylinder 12 through the air pipe 7, creating an air pressure environment inside the test cylinder 1 that is higher than the external environment. This puts the gas inside the test cylinder 1 under pressure. The controller 4 controls the placement rack 5 to slide vertically, allowing the product on the placement platform to enter the water. If the product has sealing defects such as gaps or holes, the gas inside the test cylinder 1 will enter the product through the defect and then escape into the water to form bubbles. The staff can observe the bubble formation through the outer wall of the transparent cylinder 12 to determine the product's sealing performance. After the test is completed, stop the air pressure supply, reverse the hinge rod 32 to move the locking block 322 away from the locking seat 33, move the pressure rod 31 away from the cylinder cover 11, hold the handle 111 to open the cylinder cover 11, and take out the product that has been tested.
[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A device for testing the sealing performance of products, characterized in that, The device includes a test tube (1) and a fixing assembly (3). The test tube (1) includes a tube cover (11) and a tube body (12). The fixing assembly (3) includes a pressure rod (31), a hinge rod (32), and a locking seat (33). The hinge rod (32) and the pressure rod (31) are fixedly connected. The locking seat (33) is disposed on the outer wall of the tube body (12). A locking block (322) is provided at the end of the hinge rod (32) away from the pressure rod (31). The pressure rod (31) presses the tube cover (11) against the tube body (12). The end of the hinge rod (32) away from the pressure rod (31) is engaged with the locking seat (33).
2. The device for testing the sealing performance of a product according to claim 1, characterized in that, The hinge rod (32) is provided with a snap-fit block (322) at one end away from the pressure rod (31). The snap-fit block (322) and the snap-fit seat (33) are snap-fitted together, and the upper surface of the snap-fit block (322) and the lower surface of the snap-fit seat (33) abut against each other.
3. The device for testing the sealing performance of a product according to claim 2, characterized in that, The fixing component (3) further includes a first hinge seat (34), which is fixed to the outer wall of the cylinder body (12). The end of the pressure rod (31) near the cylinder cover (11) is rotatably supported by the first hinge seat (34). The end of the hinge rod (32) away from the snap block (322) is provided with an eccentric wheel (323), and the end of the pressure rod (31) away from the cylinder cover (11) is fixedly connected to the eccentric wheel (323).
4. The device for testing the sealing performance of a product according to claim 3, characterized in that, The fixing component (3) also includes a second hinge seat (35), on which the eccentric wheel (323) is rotatably supported.
5. The device for testing the sealing performance of a product according to claim 1, characterized in that, It also includes a support frame (2), the cylinder body (12) is built into the support frame (2), and the upper end of the support frame (2) is fixedly connected to the upper end of the cylinder body (12).
6. The device for testing the sealing performance of a product according to claim 5, characterized in that, The fixing component (3) is installed on the support frame (2).
7. The device for testing the sealing performance of a product according to claim 1, characterized in that, It also includes an air pipe (7), which is connected to the interior of the test tube (1) and is externally connected to a gas supply device.
8. The device for testing the sealing performance of a product according to claim 1, characterized in that, It also includes a controller (4) for controlling the air pressure changes of the test tube (1).