Air tightness detection device for plastic bottle
By designing a plastic bottle airtightness detection device including a detection seat, a blower, a bottle pressing head and a movable pulling column, the problem of not being able to adapt to different size bottle openings in the prior art is solved, and the convenience and effectiveness of adapting and detecting bottle openings of different sizes is achieved.
Patent Information
- Application Number
- CN202422070683.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existing plastic bottle airtightness detection device cannot adapt to bottle openings of different sizes, resulting in ineffective detection and the cost of replacing the detection device is high and it is inconvenient to detect.
An airtightness detection device including a detection seat, a blower pipe, a bottle pressing head and a movable pulling column is designed. The movable pulling column is driven away from the fixed locking slot through the movable pulling column, so that the movable stick of the bottle pressing head is removed from the connecting locking slot, thereby replacing the bottle pressing head that is suitable for the new bottle opening.
The adaptation of plastic bottle openings of different sizes is achieved, the inspection cost is reduced, and the convenience and effectiveness of inspection is improved.
Smart Images
Figure CN223021481U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of plastic bottle production, in particular to an airtightness detection device for plastic bottles. Background Art
[0002] The airtightness detection of plastic bottles is an important step to ensure that the bottle body has no leakage and can effectively preserve the quality of the contents. Generally, the airtightness detection device consists of a blowing pipe, a bottle pressing head and a detector. The blowing pipe is a component connected to a gas supply source, and the detector is a sensitive pressure sensing device that can monitor and record the air pressure change inside the plastic bottle in real time. When detecting, it is necessary to use the bottle pressing head to seal the bottle mouth of the plastic bottle, so that the blowing pipe penetrates into the bottle mouth, and a certain pressure of air or inert gas is filled into the plastic bottle through the blowing pipe. The detector judges the airtightness of the plastic bottle by sensing the air pressure change inside the plastic bottle. If the air pressure change inside the plastic bottle is relatively stable, it is considered that the airtightness of the bottle is qualified. If the air pressure inside the plastic bottle drops rapidly, it is considered that the bottle has a leak and is judged as unqualified.
[0003] However, due to the different sizes of the bottle mouths of each batch of plastic bottles, the bottle pressing head cannot adapt to the bottle mouths of different sizes. Especially when the diameter of the bottle pressing head is smaller than the bottle mouth, the bottle pressing head cannot form an effective seal with the inside of the bottle, resulting in invalid detection. In view of the above problems, in the prior art, only the entire airtightness detection device can be replaced for adaptation, resulting in a high detection cost and inconvenient detection. Summary of the Utility Model
[0004] To solve the above technical problems, the utility model provides an airtightness detection device for plastic bottles, aiming to solve the technical problems that in the prior art, only the entire airtightness detection device can be replaced for adaptation, resulting in a high detection cost and inconvenient detection.
[0005] The technical solution of the utility model to solve the above technical problems is as follows:
[0006] An airtightness detection device for plastic bottles includes a detection base. One end of the detection base is provided with a blowing pipe and a bottle pressing head. One end of the blowing pipe penetrates through the bottle pressing head. One end of the detection base is provided with a connecting seat. One end of the connecting seat is provided with a connecting card slot. One side of the connecting seat is provided with a movable slot communicating with the connecting card slot. A connecting spring is arranged inside the movable slot. One end of the connecting spring is provided with a movable pull column. The movable pull column protrudes outside the connecting spring. One end of the movable pull column is provided with a fixed clamping column. One end of the fixed clamping column penetrates through the inside of the connecting spring and the inside of the movable slot. One end of the bottle pressing head is provided with a movable column. One side of the movable column is provided with a fixed card slot. The movable column is inserted into the connecting card slot, so that the penetrating end of the fixed clamping column is clamped with the fixed card slot.
[0007] When plastic bottles with different bottle mouth sizes need to be tested for airtightness, since the movable pull post protrudes outside the connecting spring, the operator can pull the movable pull post. The movable pull post drives the fixed clamping post to disengage from the fixed clamping slot of the movable post, so that the movable post of the bottle pressing head disengages from the connecting clamping slot, thereby replacing the bottle pressing head suitable for the new bottle mouth.
[0008] Furthermore, in the present application, a support cylinder is provided on one side of the connecting seat. The inside of the support cylinder communicates with the inside of the movable groove. The other end of the connecting spring is installed inside the support cylinder. First clamping protrusions are provided on both sides inside the support cylinder. The first clamping protrusions on both sides inside the support cylinder are clamped with the other end of the connecting spring. Second clamping protrusions are provided on both sides of the movable pull post. The second clamping protrusions on both sides of the movable pull post are clamped with one end of the connecting spring.
[0009] The first clamping protrusions on both sides inside the support cylinder are clamped with the other end of the connecting spring, so that the connecting spring is fixed inside the support cylinder. The second clamping protrusions on both sides of the movable pull post are clamped with one end of the connecting spring, ensuring that the movable pull post can move with the expansion and contraction of the connecting spring, thereby preventing the connecting spring from disengaging from the support cylinder or the movable pull post during the expansion and contraction process.
[0010] Furthermore, in the present application, a movable handle is provided at one end of the movable pull post. The movable handle and the movable pull post form a T-shaped structure.
[0011] By using the T-shaped structure formed by the movable handle and the movable pull post, the operator can easily pull the movable pull post, thereby adjusting the position of the fixed clamping post to facilitate the clamping connection between the fixed clamping post and the fixed clamping slot.
[0012] Furthermore, in the present application, a reinforcing end is provided at one end of the movable post. A fastening sleeve is sleeved outside the reinforcing end. The fastening sleeve has elasticity. The reinforcing end is inserted into the connecting clamping slot, so that the fastening sleeve is clamped with the connecting clamping slot.
[0013] Furthermore, in the present application, an installation groove is provided on the outer edge of the reinforcing end. The shape of the installation groove matches the shape of the fastening sleeve. The fastening sleeve is sleeved on the outer edge of the installation groove.
[0014] Furthermore, in the present application, a sealing clamping ring is provided at one end of the connecting seat. The sealing clamping ring has elasticity. A first connecting groove is provided inside the bottle pressing head. The blowing pipe passes through the first connecting groove, so that the sealing clamping ring is clamped with the first connecting groove.
[0015] Furthermore, in the present application, a plurality of limiting insertion posts are provided at one end of the connecting seat. A plurality of limiting insertion slots are provided at one end of the sealing clamping ring. The plurality of limiting insertion posts are clamped with the plurality of limiting insertion slots.
[0016] Furthermore, in the present application, a sealing gasket is provided at the other end of the bottle pressing head, the sealing gasket is elastic, a second connecting groove is opened inside the sealing gasket, the second connecting groove is connected to the first connecting groove, and the second connecting groove is used for the blowing tube to pass through.
[0017] Furthermore, in the present application, a limiting convex ring is provided at the other end of the bottle pressing head, the inner ring of the limiting convex ring matches the bottle mouth, and the sealing gasket is located inside the limiting convex ring.
[0018] Furthermore, in the present application, an inner ring of the limiting convex ring is provided with a limiting inner groove, and an outer edge of the sealing gasket is engaged with the limiting inner groove.
[0019] The utility model has the following beneficial effects:
[0020] When the air tightness of plastic bottles with different bottle mouth sizes needs to be tested, since the movable pull column protrudes from the outside of the connecting spring, the operator can pull the movable pull column, and the movable pull column drives the fixed clamping column to disengage from the fixed clamping slot of the movable column, so that the movable column of the bottle pressing head disengages from the connecting clamping slot, thereby replacing the bottle pressing head that adapts to the new bottle mouth. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a structural schematic diagram of the utility model.
[0022] Figure 2 It is a structural schematic diagram of the limiting convex ring of the utility model.
[0023] Figure 3 It is a structural schematic diagram of the limiting inner groove of the utility model.
[0024] Figure 4 It is a structural schematic diagram of the sealing clamp ring of the utility model.
[0025] Figure 5 It is a structural schematic diagram of a movable column of the utility model.
[0026] Figure 6 It is a structural schematic diagram of a fixed clamping column of the utility model.
[0027] Wherein, the reference numerals are:
[0028] 1. Detection base; 2. Connection base; 3. Blow tube; 4. Bottle pressing head; 5. Sealing gasket; 6. Limiting convex ring; 7. First connection groove; 8. Limiting inner groove; 9. Second connection groove; 10. Sealing clamping ring; 11. Limiting slot; 12. Limiting plug post; 13. Connection clamping groove; 14. Movable groove; 15. Support cylinder; 16. Connection spring; 17. Fixed clamping post; 18. Movable pull post; 19. First clamping projection; 20. Second clamping projection; 21. Movable post; 22. Reinforcement end; 23. Installation groove; 24. Fastening clamping sleeve; 25. Fixed clamping groove; 26. Movable handle. Detailed implementation manners
[0029] The following details the implementation manners of the present utility model. The examples of the implementation manners are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.
[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.
[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0032] Refer to Figures 1-6, in some specific embodiments, an airtightness detection device for a plastic bottle includes a detection base 1. One end of the detection base 1 is provided with a blowing pipe 3 and a bottle pressing head 4. One end of the blowing pipe 3 penetrates through the bottle pressing head 4. One end of the detection base 1 is provided with a connecting base 2. One end of the connecting base 2 is provided with a connecting card slot 13. One side of the connecting base 2 is provided with a movable slot 14 communicating with the connecting card slot 13. Inside the movable slot 14, there is a connecting spring 16. One end of the connecting spring 16 is provided with a movable pull column 18. The movable pull column 18 protrudes outside the connecting spring 16. One end of the movable pull column 18 is provided with a fixed clamping column 17. One end of the fixed clamping column 17 penetrates through the inside of the connecting spring 16 and the inside of the movable slot 14. One end of the bottle pressing head 4 is provided with a movable column 21. One side of the movable column 21 is provided with a fixed card slot 25. The movable column 21 is inserted into the connecting card slot 13, so that the penetrating end of the fixed clamping column 17 is clamped with the fixed card slot 25.
[0033] Through the above technical solution, when plastic bottles with different bottle mouth sizes need to be detected for airtightness, since the movable pull column 18 protrudes outside the connecting spring 16, the operator can pull the movable pull column 18. The movable pull column 18 drives the fixed clamping column 17 to disengage from the fixed card slot 25 of the movable column 21, so that the movable column 21 of the bottle pressing head 4 disengages from the connecting card slot 13, thereby replacing the bottle pressing head 4 suitable for the new bottle mouth.
[0034] When a new bottle pressing head 4 needs to be installed, the movable column 21 is inserted into the connecting card slot 13 of the connecting base 2 to achieve preliminary connection. The connecting spring 16 provides an elastic force, allowing the movable pull column 18 to drive the fixed clamping column 17 to move. Under the elastic action of the connecting spring 16, the fixed clamping column 17 is clamped with the fixed card slot 25 of the movable column 21, thus facilitating the installation of the new bottle pressing head 4.
[0035] Refer to Figure 6 , in some specific embodiments, one side of the connecting base 2 is provided with a support cylinder 15. The inside of the support cylinder 15 communicates with the inside of the movable slot 14. The other end of the connecting spring 16 is installed inside the support cylinder 15. On both sides inside the support cylinder 15, there are first clamping protrusions 19. The first clamping protrusions 19 on both sides inside the support cylinder 15 are clamped with the other end of the connecting spring 16. On both sides of the movable pull column 18, there are second clamping protrusions 20. The second clamping protrusions 20 on both sides of the movable pull column 18 are clamped with one end of the connecting spring 16.
[0036] Through the above technical solution, the first clamping protrusions 19 on both sides inside the support cylinder 15 are clamped with the other end of the connecting spring 16, so that the connecting spring 16 is fixed inside the support cylinder 15. And the second clamping protrusions 20 on both sides of the movable pull column 18 are clamped with one end of the connecting spring 16, ensuring that the movable pull column 18 can move along with the expansion and contraction of the connecting spring 16, thereby preventing the connecting spring 16 from disengaging from the support cylinder 15 or the movable pull column 18 during the process of expansion and contraction.
[0037] Refer toFigures 1-6 In some specific embodiments, one end of the movable pull post 18 is provided with a movable pull handle 26, and the movable pull handle 26 and the movable pull post 18 form a T shape.
[0038] Through the above technical solution, by using the fact that the movable pull handle 26 and the movable pull post 18 form a T shape, the operator can easily pull the movable pull post 18, so as to adjust the position of the pressing fixed clamping post 17, facilitating the clamping connection between the fixed clamping post 17 and the fixed clamping groove 25.
[0039] Refer to Figure 5 In some specific embodiments, one end of the movable post 21 is provided with a reinforcement end 22, and a fastening sleeve 24 is sleeved outside the reinforcement end 22. The fastening sleeve 24 has elasticity. The reinforcement end 22 is inserted into the connection clamping groove 13, so that the fastening sleeve 24 is clamped with the connection clamping groove 13.
[0040] Through the above technical solution, the elasticity of the fastening sleeve 24 ensures a more firm connection between the reinforcement end 22 and the connection clamping groove 13, and can maintain stability even under pressure or vibration, thereby reducing the shaking after the pressing bottle head 4 is installed.
[0041] Refer to Figure 5 In some specific embodiments, an installation groove 23 is formed on the outer edge of the reinforcement end 22. The shape of the installation groove 23 matches the shape of the fastening sleeve 24, and the fastening sleeve 24 is sleeved on the outer edge of the installation groove 23.
[0042] Through the above technical solution, the shape of the installation groove 23 matches the shape of the fastening sleeve 24, so that the fastening sleeve 24 can be completely sleeved on the outer edge of the installation groove 23, avoiding loosening or sliding of the fastening sleeve 24 due to the unmatched shape of the reinforcement end 22.
[0043] Refer to Figure 5 In some specific embodiments, one end of the connection seat 2 is provided with a sealing clamping ring 10. The sealing clamping ring 10 has elasticity. A first connection groove 7 is formed inside the pressing bottle head 4, and the blowing pipe 3 passes through the first connection groove 7, so that the sealing clamping ring 10 is clamped with the first connection groove 7.
[0044] Through the above technical solution, the main function of the sealing clamping ring 10 is that when the blowing pipe 3 passes through the first connection groove 7 inside the pressing bottle head 4, the sealing clamping ring 10 is clamped with the first connection groove 7, so that a sealing structure is formed between the bottle mouth and the pressing bottle head 4 to prevent gas leakage.
[0045] Refer to Figures 3-4 In some specific embodiments, one end of the connection seat 2 is provided with a plurality of limiting insertion posts 12, and one end of the sealing clamping ring 10 is provided with a plurality of limiting slots 11, and the plurality of limiting insertion posts 12 are clamped with the plurality of limiting slots 11.
[0046] Through the above technical solution, the clamping mechanism between the multiple limiting studs 12 and the multiple limiting slots 11 ensures that the sealing clamping ring 10 can be accurately positioned during the installation process, improving the connection stability between the connecting seat 2 and the sealing clamping ring 10.
[0047] Referring to Figures 1-3 , in some specific embodiments, a sealing gasket 5 is provided at the other end of the pressing bottle head 4. The sealing gasket 5 is elastic, and a second connection groove 9 is formed inside the sealing gasket 5. The second connection groove 9 communicates with the first connection groove 7, and the second connection groove 9 is for the air blowing pipe 3 to pass through.
[0048] Through the above technical solution, the main function of the sealing gasket 5 is that when the air blowing pipe 3 passes through the second connection groove 9 inside the pressing bottle head 4, the outer edge of the air blowing pipe 3 is clamped with the second connection groove 9 to form a sealing structure to prevent gas from leaking from the second connection groove 9; and when the pressing bottle head 4 seals the bottle mouth, the elasticity of the sealing gasket 5 can also enhance the sealing effect between the pressing bottle head 4 and the bottle mouth, thereby improving the accuracy of detection.
[0049] Referring to Figures 1-5 , in some specific embodiments, a limiting convex ring 6 is provided at the other end of the pressing bottle head 4. The inner ring of the limiting convex ring 6 matches the bottle mouth, and the sealing gasket 5 is located inside the limiting convex ring 6.
[0050] Through the above technical solution, the main function of the limiting convex ring 6 is to ensure that the bottle mouth is correctly positioned inside the pressing bottle head 4 during the airtightness detection process, thereby ensuring the accuracy and reliability of the detection.
[0051] Referring to Figure 3 , in some specific embodiments, a limiting inner groove 8 is formed in the inner ring of the limiting convex ring 6, and the outer edge of the sealing gasket 5 is clamped with the limiting inner groove 8.
[0052] Through the above technical solution, the limiting inner groove 8 is located in the inner ring of the limiting convex ring 6, and its design is to limit the position of the sealing gasket 5 to prevent the sealing gasket 5 from moving excessively during the installation process and ensure that the sealing gasket 5 is correctly installed inside the limiting convex ring 6.
[0053] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
Claims
1. A device for detecting air tightness of a plastic bottle, comprising a detection seat, one end of which is provided with an air blowing pipe and a bottle pressing head, one end of which is provided with the air blowing pipe through the bottle pressing head, characterized in that: A connecting seat is provided at one end of the detection seat, a connecting slot is provided at one end of the connecting seat, a movable slot connected to the connecting slot is provided on one side of the connecting seat, a connecting spring is provided inside the movable slot, a movable pull column is provided at one end of the connecting spring, the movable pull column protrudes from the outside of the connecting spring, a fixed column is provided at one end of the movable pull column, one end of the fixed column passes through the interior of the connecting spring and the interior of the movable slot, a movable column is provided at one end of the bottle pressing head, a fixed slot is provided on one side of the movable column, the movable column is plugged into the connecting slot so that the inserted end of the fixed column is engaged with the fixed slot.
2. The air tightness detection device for a plastic bottle according to claim 1, characterized in that: A support tube is provided on one side of the connecting seat, and the interior of the support tube is connected to the interior of the movable groove. The other end of the connecting spring is installed in the interior of the support tube. First clamping protrusions are provided on both sides of the interior of the support tube. The first clamping protrusions on both sides of the interior of the support tube are clamped with the other end of the connecting spring. Second clamping protrusions are provided on both sides of the movable pull column. The second clamping protrusions on both sides of the movable pull column are clamped with one end of the connecting spring.
3. The air tightness detection device for a plastic bottle according to claim 1, characterized in that: A movable handle is provided at one end of the movable pull column, and the movable handle and the movable pull column form a T shape.
4. The air tightness detection device for a plastic bottle according to claim 1, characterized in that: One end of the movable column is provided with a reinforcement end, and a fastening sleeve is provided on the outer sleeve of the reinforcement end. The fastening sleeve is elastic, and the reinforcement end is plugged into the connecting slot so that the fastening sleeve is engaged with the connecting slot.
5. The air tightness detection device for a plastic bottle according to claim 4, characterized in that: An installation groove is formed on the outer edge of the reinforcement end. The shape of the installation groove matches the shape of the fastening sleeve. The fastening sleeve is sleeved on the outer edge of the installation groove.
6. The air tightness detection device for a plastic bottle according to claim 1, characterized in that: A sealing clamp is provided at one end of the connecting seat, and the sealing clamp is elastic. A first connecting groove is provided inside the bottle pressing head, and the air blowing tube passes through the first connecting groove so that the sealing clamp is clamped with the first connecting groove.
7. The air tightness detection device for a plastic bottle according to claim 6, characterized in that: One end of the connection seat is provided with a plurality of limiting plug posts, one end of the sealing clamp ring is provided with a plurality of limiting slots, and the plurality of limiting plug posts are clamped with the plurality of limiting slots.
8. The air tightness detection device for a plastic bottle according to claim 6, characterized in that: A sealing gasket is provided at the other end of the bottle pressing head. The sealing gasket is elastic. A second connecting groove is provided inside the sealing gasket. The second connecting groove is connected to the first connecting groove. The second connecting groove is used for the blowing tube to pass through.
9. The air tightness detection device for a plastic bottle according to claim 8, characterized in that: A limiting convex ring is provided at the other end of the bottle pressing head, the inner ring of the limiting convex ring matches the bottle mouth, and the sealing gasket is located inside the limiting convex ring.
10. The air tightness detection device for a plastic bottle according to claim 9, characterized in that: The inner ring of the limiting convex ring is provided with a limiting inner groove, and the outer edge of the sealing gasket is clamped with the limiting inner groove.