A mechanism for detecting leaks in a latex product

By using a brush and a support rod made of conductive material, combined with weak current detection, the problem of high-voltage breakdown in condom leakage detection equipment has been solved, achieving efficient and waste-free leakage detection and improving the operational stability and efficiency of the detection equipment.

CN224365732UActive Publication Date: 2026-06-16WELLEX MEDICAL & HEALTH PROD (HUBEI) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WELLEX MEDICAL & HEALTH PROD (HUBEI) CO LTD
Filing Date
2025-08-07
Publication Date
2026-06-16

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Abstract

The utility model relates to latex product technical field especially relates to a latex product breakage and leakage detection mechanism. Include: leak detection device, bearing structure, drive structure, leak detection device includes brush, brush adopts the conductive material to make, bearing structure includes bearing lever, bearing lever adopts the conductive material to make, bearing lever is cylindrical, to make the article of being measured can be set in bearing lever, drive structure includes drive motor, drive chain, bearing lever is connected with drive chain, drive chain is closed annular, drive motor is connected with drive chain transmission, to pass through drive chain and drive bearing lever to pass brush. In prior art, the detection efficiency of detection equipment is relatively low. Compared with prior art, the utility model can continuously send the article to be measured into leak detection device, and the staff only needs to continuously set the article to be measured on the bearing lever. Thus, the leak detection device is in a continuous detection state, thereby improving the detection efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of latex product technology, and in particular to a latex product leakage detection mechanism. Background Technology

[0002] Condoms are a common barrier contraceptive method, typically made of latex, polyurethane, or polyisoprene. They prevent pregnancy by physically blocking semen from entering the vagina. In actual production, natural latex or synthetic materials (polyurethane / polyisoprene) are first selected and mixed with additives to prepare a liquid latex. Then, the latex is impregnated into clean glass or ceramic molds to form a thin film, which is then pre-cured and shaped through a drying tunnel.

[0003] Because condoms work by physically isolating the contraceptive barrier, the presence or absence of damage directly affects their effectiveness. After a condom is manufactured, each one needs to be tested for leaks. However, condoms are highly elastic, and sometimes leaks are invisible to the naked eye. Therefore, specialized equipment is typically used for leak detection. While existing equipment can meet the testing requirements and separate qualified from defective products, its testing principle relies on applying high voltage. Since condoms are usually thin, this method is prone to causing the high voltage to puncture the condom, resulting in burning and damage, and burnt condoms may stick together. This leads to unnecessary waste and can also disrupt the normal operation of the testing equipment, thus affecting testing efficiency. Utility Model Content

[0004] In view of the technical problems of the prior art, this utility model provides a latex product leakage detection mechanism.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A latex product leak detection mechanism includes: a leak detection device, a support structure, and a drive structure; the leak detection device includes a brush; the brush is made of conductive material; the support structure includes a support rod; the support rod is made of conductive material; the support rod is cylindrical so that the item to be tested can be placed on the support rod; the drive structure includes a drive motor and a drive chain; the support rod is connected to the drive chain; the drive chain is a closed loop; the drive motor is connected to the drive chain for transmission, so that the support rod is driven past the brush through the drive chain.

[0007] Furthermore, the leak detection device also includes a current generator and a detection device; the current generator is electrically connected to the brush; and the detection device is electrically connected to the brush and the support rod.

[0008] Furthermore, the load-bearing structure also includes a transmission rod; one end of the transmission rod is connected to a link of the drive chain; the other end of the transmission rod is connected to a load-bearing rod; the load-bearing rod is capable of swinging relative to the transmission rod.

[0009] Furthermore, a swing groove is provided at the end of the transmission rod away from the drive chain; a swing plate is provided at the end of the support rod near the transmission rod; the swing plate is fixedly connected to the support rod; the swing plate can swing into the swing groove; a torsion spring is provided between the swing plate and the swing groove.

[0010] Furthermore, the drive structure also includes a limiting track; the limiting track is set between the drive chain and the support rod; the limiting track is a closed loop; the limiting track corresponds to the movement path of the support rod.

[0011] Furthermore, the drive structure also includes a guide rail; the guide rail corresponds to the movement path of the support rod; the guide rail is in contact with one side of the support rod to actuate the support rod.

[0012] Furthermore, the guide track includes an adjustment section, a maintenance section, and an arc section; the maintenance section is horizontally positioned; one end of the maintenance section is connected to the adjustment section, and the other end is connected to the arc section; the adjustment section is inclined relative to the maintenance section.

[0013] Furthermore, the drive structure also includes a drive wheel and a connecting rod; a drive chain is sleeved on the drive wheel; the connecting rod is disposed between two adjacent drive wheels; one end of the connecting rod is connected to one of the drive wheels, and the other end is connected to the other drive wheel; a transmission wheel is also disposed on the connecting rod; the output end of the drive motor meshes with the transmission wheel. Attached Figure Description

[0014] Figure 1 Overall structure diagram.

[0015] Figure 2 : Overall structural diagram of the load-bearing structure.

[0016] Figure 3 : Overall structural diagram of the driving structure.

[0017] Figure 4 : Overall structure diagram of the guide track.

[0018] In the diagram: 1. Leak detection device; 11. Brush; 2. Bearing structure; 21. Bearing rod; 22. Transmission rod; 3. Drive structure; 31. Drive motor; 32. Drive chain; 33. Limiting track; 34. Guide track; 341. Adjustment section; 342. Holding section; 343. Arc section; 35. Drive wheel; 36. Connecting rod; 361. Transmission wheel. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] A latex product leak detection device includes: a leak detection device 1, a support structure 2, and a drive structure 3. The leak detection device 1 includes a brush 11 made of conductive material. The support structure 2 includes a support rod 21 made of conductive material. The support rod 21 is cylindrical so that the item to be tested can be fitted onto it. The drive structure 3 includes a drive motor 31 and a drive chain 32. The support rod 21 is connected to the drive chain 32. The drive chain 32 is a closed loop. The drive motor 31 is connected to the drive chain 32 for transmission, so that the drive chain 32 drives the support rod 21 past the brush 11.

[0021] In practical applications, the drive motor 31 is started, and driven by the drive motor 31, the drive chain 32 continuously moves the support rod 21. Because the drive chain 32 is a closed loop, the support rod 21 always moves continuously within a closed path. Thus, when the drive motor 31 starts, the support rod 21 reciprocates over the brush 11. There are multiple support rods 21, evenly distributed on the drive chain 32. The operator can then continuously place the item to be tested onto the support rod 21, and the support rod 21 carrying the item then passes over the brush 11. Both the support rod 21 and the brush 11 are made of conductive material. When the support rod 21 passes over the brush 11, because the item to be tested is in between, the support rod 21 and the brush 11 cannot form a closed path, indicating that the item to be tested has no leaks. Conversely, if the support rod 21 and the brush 11 form a closed path, it indicates that the item to be tested has leaks. Therefore, this invention eliminates the need to connect high-voltage electricity to the test item, effectively preventing the item from being damaged. On one hand, it reduces the likelihood of defective products and unnecessary waste. On the other hand, it effectively prevents the testing process from adversely affecting the device itself, thus ensuring the normal operation of the testing process.

[0022] The leak detection device 1 also includes a current generator and a detection device; the current generator is electrically connected to the brush 11; the detection device is electrically connected to the brush 11 and the support rod 21.

[0023] The weak current generated by the current generator is conducted to the brush 11, causing the brush 11 to continuously carry the weak current. Therefore, when the support rod 21 passes over the brush 11, the weak current on the brush 11 is transmitted to the support rod 21. At this time, the test item is placed on the support rod 21, and the test item is made of insulating latex. Due to the obstruction of the test item, the support rod 21 does not carry the weak current. That is, the support rod 21 and the brush 11 do not form a closed circuit, and the detection device cannot detect the weak current. If the test item is damaged, the brush 11 will pass through the test item and come into contact with the support rod 21. This will cause the support rod 21 to carry the weak current, thus creating a closed circuit between the support rod 21 and the brush 11, allowing the detection device to detect the weak current. Therefore, it can be determined that the test item is damaged.

[0024] The supporting structure 2 also includes a transmission rod 22. One end of the transmission rod 22 is connected to a link of the drive chain 32. The other end of the transmission rod 22 is connected to the supporting rod 21. The supporting rod 21 is capable of swinging relative to the transmission rod 22. Specifically, a swing groove is provided at the end of the transmission rod 22 away from the drive chain 32. A swing plate is provided at the end of the supporting rod 21 near the transmission rod 22. The swing plate is fixedly connected to the supporting rod 21. The swing plate can swing into the swing groove. A torsion spring is provided between the swing plate and the swing groove.

[0025] When the drive motor 31 drives the drive chain 32, the drive chain 32 drives the bearing rod 21 to move synchronously via the transmission rod 22. Simultaneously, the bearing rod 21 can swing relative to the transmission rod 22 through the cooperation of the swing groove and the swing plate. Furthermore, a torsion spring disposed between the swing plate and the swing groove ensures that the bearing rod 21 and the transmission rod 22 are parallel to each other without external force.

[0026] The drive structure 3 also includes a limiting track 33. The limiting track 33 is disposed between the drive chain 32 and the support rod 21. The limiting track 33 is a closed loop. The movement path of the limiting track 33 corresponds to that of the support rod 21.

[0027] The limiting track 33 is located between the drive chain 32 and the support rod 21, and a through groove is formed on the limiting track 33 corresponding to the movement path of the support rod 21. The transmission rod 22 passes through the limiting track 33 through the through groove, so that one end can be connected to the drive chain 32 and the other end can be connected to the support rod 21. At the same time, through the through groove, the limiting track 33 limits and supports the transmission rod 22, thereby making the movement of the transmission rod 22 and the support rod 21 more stable.

[0028] The drive structure 3 also includes a guide rail 34. The guide rail 34 corresponds to the movement path of the support rod 21. The guide rail 34 is in contact with one side of the support rod 21 to actuate the support rod 21. Specifically, the guide rail 34 includes an adjusting section 341, a maintaining section 342, and an arc section 343. The maintaining section 342 is horizontally positioned. One end of the maintaining section 342 is connected to the adjusting section 341, and the other end is connected to the arc section 343. The adjusting section 341 is inclined relative to the maintaining section 342.

[0029] During actual operation, because the support rod 21 always moves within a circular area, it will reciprocate through the adjusting section 341, the maintaining section 342, and the arc section 343. When the support rod 21 is on the side of the limiting track 33 away from the ground, it is horizontal under the action of the torsion spring. At this time, the support rod 21 enters the leak detection device 1 driven by the drive chain 32. Subsequently, the support rod 21 moves to the side of the limiting track 33 closer to the ground under the drive chain 32. Under the drive of the drive chain 32, the swing plate on the support rod 21 will come into contact with the adjusting section 341. Because the adjusting section 341 is inclined relative to the maintaining section 342, after the adjusting section 341 comes into contact with the support rod 21, it will push the swing plate along with the movement of the support rod 21, thereby causing the support rod 21 to gradually change from a horizontal state to a vertical state. When the support rod 21 and the transmission rod 22 are completely perpendicular, the support rod 21 moves to the maintaining section 342. At this point, because the support rod 21 is in a vertical position, it is convenient for the operator to put on the item to be tested. Within the area covered by the holding section 342, the support rod 21 remains vertical. Subsequently, the support rod 21 continues to move to the arc section 343. Under the action of the arc section 343, the support rod 21 maintains its current state until it returns to the side of the limiting track 33 away from the ground. At this point, the support rod 21 disengages from the arc section 343. Under the action of the torsion spring, the support rod 21 returns to a horizontal state. Thus, through the aforementioned movement process, the operation of the operator is greatly facilitated.

[0030] The drive structure 3 also includes a drive wheel 35 and a connecting rod 36. A drive chain 32 is sleeved on the drive wheel 35. The connecting rod 36 is positioned between two adjacent drive wheels 35. One end of the connecting rod 36 is connected to one of the drive wheels 35, and the other end is connected to the other drive wheel 35. A transmission wheel 361 is also mounted on the connecting rod 36. The output end of the drive motor 31 meshes with the transmission wheel 361.

[0031] When the drive motor 31 starts, its output will drive the transmission wheel 361 to rotate. Under the drive of the transmission wheel 361, the connecting rod 36 rotates synchronously, which in turn drives the two drive wheels 35 to rotate synchronously. In this way, the drive motor 31 can drive two drive chains 32 to rotate simultaneously, thereby providing more workstations for workers and further improving efficiency.

[0032] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A latex product leak detection mechanism, characterized in that: include: Leak detection device, load-bearing structure, drive structure; The leak detection device includes a brush; The brush is made of a conductive material; The load-bearing structure includes a load-bearing rod; The support rod is made of conductive material; The support rod is cylindrical so that the item to be tested can be fitted onto the support rod; The drive structure includes a drive motor and a drive chain; The support rod is connected to the drive chain; The drive chain is a closed loop; The drive motor is connected to the drive chain to drive the support rod past the brush.

2. The latex product leakage detection mechanism according to claim 1, characterized in that: The leak detection device also includes a current generator and a detection device; The current generator is electrically connected to the brush. The detection device is electrically connected to the brush and the support rod.

3. The latex product leakage detection mechanism according to claim 1, characterized in that: The load-bearing structure also includes a transmission rod; One end of the transmission rod is connected to a link of the drive chain; The other end of the transmission rod is connected to the bearing rod; The bearing rod is capable of swinging relative to the transmission rod.

4. The latex product leakage detection mechanism according to claim 3, characterized in that: The end of the transmission rod away from the drive chain is provided with a swing groove; A swing plate is provided at one end of the bearing rod near the transmission rod; The swing plate is fixedly connected to the bearing rod; The swing plate can swing into the swing groove; A torsion spring is provided between the swing plate and the swing groove.

5. The latex product leakage detection mechanism according to claim 1, characterized in that: The drive structure also includes a limiting track; The limiting track is disposed between the drive chain and the bearing rod; The limiting track is in the form of a closed loop; The limiting track corresponds to the movement path of the bearing rod.

6. The latex product leakage detection mechanism according to claim 1, characterized in that: The drive structure also includes a guide rail; The guide rail corresponds to the movement path of the bearing rod; The guide rail is attached to one side of the support rod to actuate the support rod.

7. The latex product leakage detection mechanism according to claim 6, characterized in that: The guide track includes an adjustment section, a maintenance section, and an arc section; The sustaining section is horizontally positioned. One end of the maintaining section is connected to the adjusting section, and the other end is connected to the arc segment; The adjustment section is inclined relative to the maintenance section.

8. The latex product leakage detection mechanism according to claim 1, characterized in that: The drive structure also includes a drive wheel and a connecting rod; The drive chain is fitted onto the drive wheel; The connecting rod is disposed between two adjacent drive wheels; One end of the connecting rod is connected to one of the drive wheels, and the other end is connected to the other drive wheel; The connecting rod is also equipped with a transmission wheel; The output end of the drive motor meshes with the transmission wheel.