Plastic bottle air leakage detection device
By combining the telescopic and clamping adjustment mechanism with the lifting mechanism, the problem that existing plastic bottle leak detection devices cannot adapt to bottles of different sizes is solved, achieving efficient and flexible plastic bottle leak detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANTOU HENZEN PLASTICS CO LTD
- Filing Date
- 2025-02-04
- Publication Date
- 2026-04-17
AI Technical Summary
Existing plastic bottle leak detection devices cannot be adapted to plastic bottles of different sizes, resulting in significant limitations in detection and making it difficult to promote them on a large scale.
It adopts a telescopic mechanism and a clamping adjustment mechanism. The clamping frame is adjusted by driving the threaded rod and threaded ring with a servo motor. In conjunction with the lifting mechanism, the detection height can be adjusted to accommodate operators of different heights and to fix and detect plastic bottles of different sizes.
It enables rapid clamping and inspection of plastic bottles of different sizes, improves inspection efficiency, adapts to the needs of different operators, and expands the applicability of the device.
Smart Images

Figure CN224136811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a detection device, specifically a plastic bottle leakage detection device, belonging to the technical field of plastic bottle leakage detection devices. Background Technology
[0002] Plastic bottles are primarily made from materials such as polyethylene or polypropylene with the addition of various organic solvents. Plastic bottles widely use polyester, polyethylene, and polypropylene as raw materials, adding appropriate organic solvents, and then, after high-temperature heating, are formed into plastic containers through blow molding, extrusion blow molding, or injection molding using plastic molds. Currently, leaky plastic bottles inevitably occur during the production and processing process. To ensure the quality of the produced plastic bottles, leaky bottles need to be screened out.
[0003] A search revealed a Chinese patent with publication number CN219495582U, which discloses a device for detecting leaks in plastic bottles. The device includes a testing platform, a water tank on top of the testing platform, a movably mounted placement frame inside the water tank, a pressure plate movably mounted inside the placement frame, a placement groove on the top of the placement frame, three sets of symmetrically arranged limit holes on the top of the pressure plate, three sets of symmetrically arranged limit grooves on the top of the placement frame, a drain hole at the bottom of each limit groove, and a water delivery groove inside each placement frame.
[0004] While the aforementioned device allows plastic bottles to be placed inside a water tank, and then secured and inspected using a pressure plate and placement frame, the presence of air bubbles in the water indicates a leak, effectively accelerating the detection process and improving work efficiency. However, this device is not adaptable to different sizes of plastic bottles, limiting its effectiveness and hindering widespread adoption. Therefore, we provide a plastic bottle leak detection device to address these issues. Utility Model Content
[0005] To address the aforementioned problems, this utility model provides a plastic bottle leakage detection device, the specific technical solution of which is as follows:
[0006] A plastic bottle leakage detection device includes a water tank with a telescopic mechanism and a clamping adjustment mechanism. The clamping adjustment mechanism includes a sliding frame and multiple sliding blocks. The sliding frame has a first sliding cavity and a second sliding groove. Each of the multiple sliding blocks is fixedly connected to a third threaded rod, and the third threaded rod is threadedly connected to a threaded ring. Each sliding block is fixedly connected to a connecting post, and the connecting post is fixedly connected to a clamping frame. The clamping frame has a clamping cavity with multiple second threaded holes, each of which is threadedly connected to a second threaded rod. Each second threaded rod is fixedly connected to a rotating disk.
[0007] Preferably, all of the sliding blocks are slidably connected to the first sliding cavity, and the third threaded rod is slidably connected to the second sliding groove.
[0008] Preferably, the telescopic mechanism includes a first support plate and a telescopic rod. The first support plate is fixedly connected to a plurality of support columns, and the plurality of support columns are fixedly connected to the water tank. The first support plate has a first sliding groove, and the first support plate is fixedly connected to two mutually symmetrical second support plates.
[0009] Preferably, the two second support plates are fixedly connected to a connecting plate, the connecting plate has a through hole, the connecting plate is fixedly mounted with a first servo motor, the output end of the first servo motor is fixedly connected to a first threaded rod, and the first threaded rod is rotatably connected to the through hole.
[0010] Preferably, the telescopic rod is slidably connected to the first sliding groove, the telescopic rod is fixedly connected to the sliding frame, the telescopic rod is fixedly connected to a limit ring, and the telescopic rod has a first threaded hole, which is threadedly connected to the first threaded rod.
[0011] Preferably, the water tank is provided with a lifting mechanism, which includes a support base and a lifting plate. A second servo motor is fixedly installed on the support base, and a fourth threaded rod is fixedly connected to the output end of the second servo motor. Multiple sliding rods are fixedly connected to the support base.
[0012] Preferably, the lifting plate is fixedly connected to a plurality of lifting cylinders, each of the plurality of lifting cylinders having a second sliding cavity, the second sliding cavity being slidably connected to a sliding rod, the lifting plate being fixedly connected to a threaded cylinder, the threaded cylinder having a threaded cavity, the threaded cavity being threadedly connected to a fourth threaded rod.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This plastic bottle leakage detection device controls the sliding block to slide left and right inside the first sliding cavity, thereby driving the third threaded rod to slide left and right inside the second sliding groove. At the same time, it drives the clamping frame to move left and right. After the clamping frame moves to the appropriate position, the threaded ring is controlled to rotate, so that the threaded ring and the sliding block clamp the side plate of the sliding frame, thereby fixing the position of the sliding block and the position of the clamping frame. This achieves the purpose of quickly adjusting the clamping frame spacing, making it convenient to clamp plastic bottles of different sizes. Then, the bottle mouth of the plastic bottle is inserted into the inside of the clamping cavity. By rotating the rotating disk, the second threaded rod clamps and fixes the bottle mouth of the plastic bottle, achieving the purpose of clamping and fixing plastic bottles of different sizes.
[0015] 2. This plastic bottle leak detection device controls the left and right rotation of the first servo motor, which in turn drives the first threaded rod to reciprocate within the first threaded hole, thereby causing the telescopic rod to move up and down. Simultaneously, it moves the plastic bottle held and fixed by the device up and down, allowing the bottle to be inserted into or removed from the water tank. By observing whether there are air bubbles in the water, the device determines whether the plastic bottle is leaking, achieving the purpose of quickly detecting leaks. By rotating the second servo motor left and right, the device drives the fourth threaded rod to rotate left and right within the threaded cavity, thereby causing the threaded cylinder to move up and down. Simultaneously, it causes multiple lifting cylinders to slide up and down outside the sliding rod, moving the lifting plate up and down, and also causing the detection part of the device to move up and down. This allows for quick adjustment of the working height, facilitating use by operators of different heights. Attached Figure Description
[0016] Figure 1 This is a three-dimensional front view structural diagram of the present invention;
[0017] Figure 2 This is a three-dimensional structural exploded view of the telescopic mechanism of this utility model;
[0018] Figure 3 This is a three-dimensional structural exploded view of the clamping and adjusting mechanism of this utility model;
[0019] Figure 4 This is a three-dimensional structural exploded view of the lifting mechanism of this utility model;
[0020] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0021] Figure Descriptions: 1. Water tank; 2. Telescopic mechanism; 201. First support plate; 202. Support column; 203. First slide groove; 204. Second support plate; 205. Connecting plate; 206. Through hole; 207. First servo motor; 208. First threaded rod; 209. Telescopic rod; 210. Limiting ring; 211. First threaded hole; 3. Clamping and adjusting mechanism; 301. Sliding frame; 302. First sliding cavity; 303. Second slide groove; 304. Sliding... 305. Connecting column; 306. Clamping frame; 307. Clamping cavity; 308. Second threaded hole; 309. Second threaded rod; 310. Rotating disk; 311. Third threaded rod; 312. Threaded ring; 4. Lifting mechanism; 401. Support base; 402. Second servo motor; 403. Fourth threaded rod; 404. Sliding rod; 405. Lifting plate; 406. Lifting cylinder; 407. Second sliding cavity; 408. Threaded cylinder; 409. Threaded cavity. Detailed Implementation
[0022] The present invention will now be further described with reference to the accompanying drawings.
[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 The system includes a water tank 1, which is equipped with a telescopic mechanism 2. The telescopic mechanism 2 is equipped with a clamping and adjusting mechanism 3. The clamping and adjusting mechanism 3 includes a sliding frame 301 and multiple sliding blocks 304. The sliding frame 301 has a first sliding cavity 302 and a second sliding groove 303. Each of the multiple sliding blocks 304 is fixedly connected to a third threaded rod 311. The third threaded rod 311 is threadedly connected to a threaded ring 312. Each sliding block 304 is fixedly connected to a connecting post 305. The connecting post 305 is fixedly connected to a clamping frame 306. The clamping frame 306 has a clamping cavity 307 and multiple second threaded holes 308. Each of the multiple second threaded holes 308 is threadedly connected to a second threaded rod 309. The second threaded rod 309 is fixedly connected to a rotating disk 310. Each of the multiple sliding blocks 304 is slidably connected to the first sliding cavity 302, and the third threaded rod 311 is slidably connected to the second sliding groove 303.
[0024] An elastic pad is provided at the contact point between the second threaded rod 309 and the plastic bottle to effectively prevent damage to the plastic bottle. By controlling the sliding block 304 to slide left and right inside the first sliding cavity 302, the third threaded rod 311 is driven to slide left and right inside the second sliding groove 303, and at the same time, the clamping frame 306 is moved left and right. After the clamping frame 306 moves to the appropriate position, the threaded ring 312 is controlled to rotate, so that the threaded ring 312 and the sliding block 304 clamp the side plate of the sliding frame 301, thereby fixing the position of the sliding block 304 and fixing the position of the clamping frame 306. This achieves the purpose of quickly adjusting the spacing of the clamping frame 306, which is convenient for clamping plastic bottles of different sizes. Then, the bottle mouth of the plastic bottle is inserted into the clamping cavity 307. By rotating the rotating disk 310, the second threaded rod 309 clamps and fixes the bottle mouth of the plastic bottle, thus achieving the purpose of clamping and fixing plastic bottles of different sizes.
[0025] Please refer to it again. Figure 1 , Figure 2 , Figure 3 , Figure 4 The telescopic mechanism 2 includes a first support plate 201 and a telescopic rod 209. The first support plate 201 is fixedly connected to multiple support columns 202, which are all fixedly connected to the water tank 1. The first support plate 201 has a first sliding groove 203. The first support plate 201 is fixedly connected to two mutually symmetrical second support plates 204. The two second support plates 204 are fixedly connected to a connecting plate 205. The connecting plate 205 has a through hole 206. The connecting plate 205 is fixedly installed with a first servo motor 207. The output end of the first servo motor 207 is fixedly connected to a first threaded rod 208. The first threaded rod 208 is rotatably connected to the through hole 206. The telescopic rod 209 is slidably connected to the first sliding groove 203. The telescopic rod 209 is fixedly connected to the sliding frame 301. The telescopic rod 209 is fixedly connected to a limit ring 210. The telescopic rod 209 has a first threaded hole 211, which is threadedly connected to the first threaded rod 208.
[0026] The first servo motor 207 in this application is a common electrical device in the prior art. This application will not elaborate on its model or internal structure. It can also be replaced by other power sources. When using the first support plate 201, the second support plate 204, and the connecting plate 205, the edges are rounded. By controlling the first servo motor 207 to rotate left and right, the first threaded rod 208 is driven to rotate back and forth inside the first threaded hole 211, thereby driving the telescopic rod 209 to move up and down. At the same time, it drives the plastic bottle clamped and fixed by this device to move up and down, and to insert the plastic bottle into the water inside the water tank 1 or remove it from the water inside the water tank 1. By observing whether there are air bubbles in the water inside the water tank 1, it is determined whether the plastic bottle is leaking air. This achieves the purpose of this device to quickly detect whether the plastic bottle is leaking air.
[0027] Please refer to it again. Figure 1 , Figure 2 , Figure 3 , Figure 4 The water tank 1 is equipped with a lifting mechanism 4, which includes a support base 401 and a lifting plate 405. The support base 401 is fixedly mounted with a second servo motor 402. The output end of the second servo motor 402 is fixedly connected to a fourth threaded rod 403. The support base 401 is fixedly connected with multiple sliding rods 404. The lifting plate 405 is fixedly connected with multiple lifting cylinders 406. Each of the multiple lifting cylinders 406 has a second sliding cavity 407. The second sliding cavity 407 is slidably connected to the sliding rod 404. The lifting plate 405 is fixedly connected with a threaded cylinder 408. The threaded cylinder 408 has a threaded cavity 409. The threaded cavity 409 is threadedly connected to the fourth threaded rod 403.
[0028] The second servo motor 402 in this application is a common electrical device in the prior art. This application will not elaborate on its model or internal structure. It can also be replaced by other power sources. By rotating the second servo motor 402 left and right, the fourth threaded rod 403 is driven to rotate left and right inside the threaded cavity 409, thereby driving the threaded cylinder 408 to move up and down. At the same time, multiple lifting cylinders 406 slide up and down outside the sliding rod 404, while the lifting plate 405 moves up and down. Simultaneously, the detection part of this device moves up and down, realizing the purpose of quickly adjusting the working height of this device, which is convenient for operators of different heights to use.
[0029] In use, this invention works as follows: First, water is added to the water tank 1. The second servo motor 402 is rotated left and right, causing the fourth threaded rod 403 to rotate left and right inside the threaded cavity 409. This causes the threaded cylinder 408 to move up and down, simultaneously causing multiple lifting cylinders 406 to slide up and down outside the sliding rod 404, and simultaneously causing the lifting plate 405 to move up and down. This also causes the detection part of the device to move up and down, achieving the purpose of quickly adjusting the working height, making it convenient for operators of different heights. By controlling the sliding block 304 to slide left and right inside the first sliding cavity 302, the third threaded rod 311 is driven to slide left and right inside the second sliding groove 303, simultaneously causing the clamping frame 306 to move left and right. After the clamping frame 306 moves to the appropriate position, the threaded ring 312 is rotated, causing the threaded ring 312 and the sliding block 304 to clamp the side plate of the sliding frame 301, thereby fixing the position of the sliding block 304. The device is positioned so that the clamping frame 306 is fixed in place, thus enabling the device to quickly adjust the spacing of the clamping frame 306, facilitating the clamping of plastic bottles of different sizes. Then, the bottle mouth is inserted into the clamping cavity 307. By rotating the rotating disk 310, the second threaded rod 309 clamps and fixes the bottle mouth, thus achieving the purpose of clamping and fixing plastic bottles of different sizes. By controlling the first servo motor 207 to rotate left and right, the first threaded rod 208 is driven to reciprocate inside the first threaded hole 211, thereby driving the telescopic rod 209 to move up and down, and simultaneously driving the plastic bottle clamped and fixed by the device to move up and down, and to insert the plastic bottle into the water inside the water tank 1 or remove it from the water inside the water tank 1. By observing whether there are air bubbles in the water inside the water tank 1, it is determined whether the plastic bottle is leaking, thus achieving the purpose of the device to quickly detect whether the plastic bottle is leaking.
[0030] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.
Claims
1. A plastic bottle leak detection apparatus comprising a water tank (1) characterised in that: The water tank (1) is provided with a telescopic mechanism (2), and the telescopic mechanism (2) is provided with a clamping adjustment mechanism (3). The clamping adjustment mechanism (3) includes a sliding frame (301) and multiple sliding blocks (304). The sliding frame (301) has a first sliding cavity (302), and the first sliding cavity (302) has a second sliding groove (303). Each of the multiple sliding blocks (304) is fixedly connected to a third threaded rod (311). The third threaded rod (311) is threadedly connected to a threaded ring (312). Each sliding block (304) is fixedly connected to a connecting column (305). The connecting column (305) is fixedly connected to a clamping frame (306). The clamping frame (306) has a clamping cavity (307). The clamping cavity (307) has multiple second threaded holes (308). Each of the multiple second threaded holes (308) is threadedly connected to a second threaded rod (309). The second threaded rod (309) is fixedly connected to a rotating disk (310).
2. The plastic bottle leak detection device of claim 1, wherein: The plurality of sliding blocks (304) are slidably connected to the first sliding cavity (302), and the third threaded rod (311) is slidably connected to the second sliding groove (303).
3. The plastic bottle leak detection device of claim 1, wherein: The telescopic mechanism (2) includes a first support plate (201) and a telescopic rod (209). The first support plate (201) is fixedly connected to a plurality of support columns (202). The plurality of support columns (202) are fixedly connected to the water tank (1). The first support plate (201) has a first sliding groove (203). The first support plate (201) is fixedly connected to two mutually symmetrical second support plates (204).
4. The plastic bottle leak detection apparatus of claim 3, wherein: Two second support plates (204) are fixedly connected to a connecting plate (205). The connecting plate (205) has a through hole (206). A first servo motor (207) is fixedly installed on the connecting plate (205). A first threaded rod (208) is fixedly connected to the output end of the first servo motor (207). The first threaded rod (208) is rotatably connected to the through hole (206).
5. The plastic bottle leak detection apparatus of claim 4, wherein: The telescopic rod (209) is slidably connected to the first slide groove (203), the telescopic rod (209) is fixedly connected to the sliding frame (301), the telescopic rod (209) is fixedly connected to the limit ring (210), the telescopic rod (209) has a first threaded hole (211), and the first threaded hole (211) is threadedly connected to the first threaded rod (208).
6. The plastic bottle leakage detection device according to claim 1, characterized in that: The water tank (1) is provided with a lifting mechanism (4), which includes a support base (401) and a lifting plate (405). The support base (401) is fixedly installed with a second servo motor (402), and the output end of the second servo motor (402) is fixedly connected with a fourth threaded rod (403). The support base (401) is fixedly connected with multiple sliding rods (404).
7. The plastic bottle leak detection apparatus of claim 6, wherein: The lifting plate (405) is fixedly connected to a plurality of lifting cylinders (406), and each of the plurality of lifting cylinders (406) is provided with a second sliding cavity (407). The second sliding cavity (407) is slidably connected to the sliding rod (404). The lifting plate (405) is fixedly connected to a threaded cylinder (408), and the threaded cylinder (408) is provided with a threaded cavity (409). The threaded cavity (409) is threadedly connected to the fourth threaded rod (403).
Citation Information
Patent Citations
Device for detecting air leakage of plastic bottle
CN219495582U