Special-shaped pet embryo tube

Abstract

The utility model relates to the technical field of embryo tubes, in particular to a special-shaped pet embryo tube which comprises a special-shaped tube body, a connector is installed at the top of the special-shaped tube body, a top annular head communicated with a liquid storage cavity is formed at the top of the special-shaped tube body, an annular groove is formed in the top annular head, and the connector comprises an insertion tube capable of being inserted into the liquid storage cavity. An annular block matched with the annular groove is formed on the insertion pipe; the bottom surface of the annular block is matched with the sealing washer; an embedding groove is formed in the side wall of the top annular head, and an embedding elastic piece is installed at the top of the annular block. When the connector is matched with the special-shaped pipe body, the insertion pipe is inserted into the liquid storage cavity, meanwhile, the annular block of the connector can abut against the annular groove of the top annular head, and during installation, the embedded elastic piece located on the annular block can abut against the inner side wall of the top annular head till the embedded elastic piece and the embedded groove are aligned in the radial direction, and then the insertion pipe is inserted into the liquid storage cavity. The top of the embedded elastic piece is in stop fit with the top wall of the embedded groove to prevent the connector from falling off from the special-shaped pipe body, splicing is achieved, threaded connection is not needed, abrasion can be reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of embryonic tubes, in particular to special-shaped PET embryonic tubes. Background Art

[0002] PET is a thermoplastic polyester with excellent mechanical properties. Its high strength allows it to withstand certain pressures, and it maintains good shape stability after being manufactured into embryo tubes. Its excellent transparency makes PET embryo tubes widely used in the packaging industry, for example, in packaging beverages, cosmetics, and other products, ensuring a clear display of the contents. PET also exhibits excellent chemical stability and resistance to acid and alkali corrosion, making it suitable for packaging a wide range of chemically diverse contents. PET embryo tubes are also environmentally friendly and recyclable, meeting modern society's demands for sustainable development.

[0003] PET embryo tubes are generally produced through injection molding. PET pellets are first heated to a molten state. The molten plastic is then injected into a specific mold cavity via the screw of the injection molding machine. Inside the mold, the plastic cools and solidifies, forming the embryo tube shape. Controlling parameters such as temperature, pressure, and injection speed is crucial during the production process. The appropriate temperature ensures that the PET material fully melts and evenly fills the mold; the appropriate pressure ensures the density and quality of the embryo tube; and the appropriate injection speed helps improve production efficiency and product quality.

[0004] When using the embryo tube, it is usually paired with a connector for liquid injection. After the connector is connected to the embryo tube, different liquids can be easily injected. The existing connection method between the connector and the embryo tube is usually a threaded connection. Since the thread structure will wear after long-term use, it is easy to leak. Utility Model Content

[0005] The purpose of the utility model is to provide a special-shaped PET embryo tube in response to the deficiencies in the prior art.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] The special-shaped PET embryo tube includes a special-shaped tube body, a joint installed on the top of the special-shaped tube body, a liquid storage cavity formed on the special-shaped tube body, a top annular head connected to the liquid storage cavity formed on the top of the special-shaped tube body, an annular groove formed on the top annular head, a sealing gasket coaxially installed in the annular groove, and the joint includes a cannula that can be inserted into the liquid storage cavity, the cannula is formed with an annular block that cooperates with the annular groove, and the bottom surface of the annular block cooperates with the sealing gasket;

[0008] A fitting groove is formed on the side wall of the top annular head, and a fitting spring is installed on the top of the annular block. The outer end of the fitting spring can be elastically embedded into the fitting groove outward, and the top of the fitting spring cooperates with the top wall stop of the fitting groove to prevent the joint from falling off from the special-shaped tube body.

[0009] Furthermore: the connector also includes a sleeve sleeved on the top of the insertion tube, and the annular block is integrally formed and sleeved on the sleeve, wherein the bottom of the sleeve cooperates with the stopper at the top of the liquid storage chamber.

[0010] Furthermore: there is a gap between the sleeve and the cannula, and the top of the sleeve is formed with a first liquid injection head inserted into the cannula and a plurality of second liquid injection heads inserted into the gap between the sleeve and the cannula.

[0011] Furthermore: a plurality of the second liquid injection heads are arranged in a ring shape and equidistantly around the periphery of the first liquid injection head.

[0012] Furthermore: the aperture of the second liquid injection head is smaller than the aperture of the first liquid injection head, and a connecting pipe head is installed on the top of the second liquid injection head.

[0013] Furthermore: the chimeric spring piece includes a first mounting block installed horizontally on the top of the annular block and a second elastic piece arranged longitudinally, the second elastic piece is arranged perpendicular to the first mounting block, and a first compression spring is arranged between the outer wall of the sleeve and the second elastic piece.

[0014] Furthermore: an unlocking structure is provided on the outer side wall of the top annular head, and the unlocking structure includes an unlocking block located outside the fitting groove, and an unlocking end block is formed on the inner wall of the unlocking block and can be inserted into the fitting groove.

[0015] Furthermore: the bottom of the unlocking block can be rotatably mounted on the bottom wall of the top annular head, and a second compression spring is provided between the outer side wall of the top annular head and the unlocking block.

[0016] Furthermore: a bottom liquid outlet head connected to the liquid storage cavity is installed at the bottom of the special-shaped tube body.

[0017] The beneficial effects of the present invention are as follows: when the connector is matched with the special-shaped tube body, the cannula is inserted into the liquid storage cavity, and at the same time the annular block of the connector will abut against the annular groove of the top annular head and cooperate with the sealing gasket to prevent the liquid inside the liquid storage cavity from leaking; during installation, the engaging spring piece located on the annular block will abut against the inner side wall of the top annular head until the engaging spring piece is radially aligned with the engaging groove, and the outer end of the engaging spring piece can be elastically embedded into the engaging groove outward, and the top of the engaging spring piece cooperates with the top wall stop of the engaging groove to prevent the connector from falling off from the special-shaped tube body, thereby realizing splicing without the need for threaded connection, reducing wear and extending service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the embryonic tube.

[0019] Figure 2 Schematic diagram of the exploded structure of the embryonic tube.

[0020] Figure 3 This is a schematic diagram of the partial cross-sectional structure of the embryonic tube.

[0021] Reference numerals include:

[0022] 1-Special-shaped pipe body,

[0023] 11-liquid storage chamber, 12-bottom liquid outlet head, 13-top annular head, 14-annular groove, 15-sealing gasket, 16-fitting groove, 17-unlocking block, 18-unlocking end block, 19-second compression spring,

[0024] 2-connector,

[0025] 21-cannula, 22-sleeve, 23-ring block, 24-first injection head, 25-second injection head,

[0026] 26-connecting pipe head, 27-engaging spring piece, 28-first mounting block, 29-second elastic piece,

[0027] 30-First compression spring. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-3 As shown, the special-shaped PET embryo tube includes a special-shaped tube body 1, a joint 2 is installed on the top of the special-shaped tube body 1, a liquid storage cavity 11 is formed in the special-shaped tube body 1, and a bottom liquid outlet head 12 connected to the liquid storage cavity 11 is installed at the bottom of the special-shaped tube body 1. The bottom liquid outlet head 12 can discharge the mixed liquid in the liquid storage cavity 11.

[0030] A top annular head 13 communicating with the liquid storage chamber 11 is formed at the top of the special-shaped tube body 1, and an annular groove 14 is formed on the top annular head 13. A sealing gasket 15 is coaxially installed on the annular groove 14. The connector 2 includes a cannula 21 that can be inserted into the liquid storage chamber 11. The cannula 21 is formed with an annular block 23 that cooperates with the annular groove 14, and the bottom surface of the annular block 23 cooperates with the sealing gasket 15; a fitting groove 16 is formed on the side wall of the top annular head 13, and a fitting spring piece 27 is installed on the top of the annular block 23. The outer end of the fitting spring piece 27 can be elastically embedded in the fitting groove 16 outward, and the top of the fitting spring piece 27 cooperates with the top wall stop of the fitting groove 16 to prevent the connector 2 from falling off from the special-shaped tube body 1.

[0031] When the connector 2 is matched with the special-shaped tube body 1, the cannula 21 is inserted into the liquid storage chamber 11, and at the same time the annular block 23 of the connector 2 will press against the annular groove 14 of the top annular head 13 and cooperate with the sealing gasket 15 to prevent the liquid inside the liquid storage chamber 11 from leaking; during installation, the engaging spring piece 27 located on the annular block 23 will press against the inner side wall of the top annular head 13 until the engaging spring piece 27 is radially aligned with the engaging groove 16. The outer end of the engaging spring piece 27 can be elastically embedded into the engaging groove 16 outward, and the top of the engaging spring piece 27 cooperates with the top wall stop of the engaging groove 16 to prevent the connector 2 from falling off from the special-shaped tube body 1, thereby realizing splicing without the need for threaded connection, which can reduce wear and extend service life.

[0032] The connector 2 also includes a sleeve 22 that is sleeved on the top of the insert 21, and the annular block 23 is integrally formed on the sleeve 22, wherein the bottom of the sleeve 22 cooperates with the top stop of the liquid storage chamber 11; the sleeve 22 is integrally formed with the insert 21, and when the insert 21 is inserted into the liquid storage chamber 11, the sleeve 22 will cooperate with the top annular head 13 until the annular block 23 rests against the annular groove 14 on the top of the top annular head 13, and the installation is completed.

[0033] Preferably, there is a gap between the sleeve 22 and the cannula 21, and the top of the sleeve 22 is formed with a first liquid injection head 24 inserted into the cannula 21 and multiple second liquid injection heads 25 inserted into the gap between the sleeve 22 and the cannula 21. The second liquid injection heads 25 can be inserted and matched with other liquid pipelines with smaller demand, so that multiple liquids can be simultaneously supplied to the liquid storage chamber 11 for mixing.

[0034] Multiple second injection heads 25 are arranged in a circular pattern, equidistantly around the first injection head 24. The aperture of each second injection head 25 is smaller than that of the first injection head 24, and a connecting pipe head 26 is mounted on top of each second injection head 25. These second injection heads 25 can be inserted into other liquid pipelines with smaller demand, enabling the simultaneous delivery of multiple liquids into the liquid storage chamber 11 for mixing.

[0035] Furthermore, the engaging spring piece 27 includes a first mounting block 28 installed horizontally on the top of the annular block 23 and a second elastic piece 29 arranged longitudinally. The second elastic piece 29 is arranged perpendicular to the first mounting block 28, and a first compression spring 30 is provided between the outer wall of the sleeve 22 and the second elastic piece 29; when the cannula 21 is inserted into the liquid storage chamber 11, the sleeve 22 will cooperate with the top annular head 13, and the second elastic piece 29 will press against the inner wall of the top annular head 13 under the elastic action of the first compression spring 30. After the engaging spring piece 27 is radially aligned with the engaging groove 16, the engaging spring piece 27 can be elastically embedded into the engaging groove 16 outwardly under the elastic action of the first compression spring 30. At this time, the top of the second elastic piece 29 cooperates with the top stop of the engaging groove 16 to prevent the connector 2 from falling off from the special-shaped tube body 1.

[0036] Furthermore, an unlocking structure is provided on the outer side wall of the top annular head 13. The unlocking structure includes an unlocking block 17 located outside the fitting groove 16. The inner wall of the unlocking block 17 is formed with an unlocking end block 18 that can be inserted into the fitting groove 16. When unlocking is required, the unlocking block 17 is pressed, and the unlocking end block 18 located at the inner end of the unlocking block 17 abuts against the second elastic piece 29, causing the second elastic piece 29 to retract from the fitting groove 16. At this time, the connector 2 can be pulled out of the special-shaped tube body 1 for removal and replacement.

[0037] Preferably, the bottom of the unlocking block 17 can be rotatably mounted on the bottom wall of the top annular head 13, and a second compression spring 19 is provided between the outer side wall of the top annular head 13 and the unlocking block 17; initially, under the elastic action of the second compression spring 19, the unlocking block 17 faces outward and will not be located in the fitting groove 16. When unlocking is required, the unlocking block 17 is moved so that the unlocking end block 18 located at the inner end of the unlocking block 17 abuts against the second elastic piece 29, driving the second elastic piece 29 to retreat from the fitting groove 16 to achieve unlocking.

[0038] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance its performance unprecedented in the past and become a product with great practical value.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. Special-shaped PET embryo tube, including a special-shaped tube body, a joint is installed on the top of the special-shaped tube body, characterized by: The special-shaped tube body is formed with a liquid storage cavity, and a top annular head connected to the liquid storage cavity is formed on the top of the special-shaped tube body, the top annular head is formed with an annular groove, and a sealing gasket is coaxially installed in the annular groove. The joint includes a cannula that can be inserted into the liquid storage cavity, the cannula is formed with an annular block that cooperates with the annular groove, and the bottom surface of the annular block cooperates with the sealing gasket; The side wall of the top annular head is formed with an interlocking groove, and an interlocking spring piece is installed on the top of the annular block. The outer end of the interlocking spring piece can be elastically embedded into the interlocking groove outward, and the top of the interlocking spring piece cooperates with the top wall stop of the interlocking groove to prevent the joint from falling off from the special-shaped tube body.

2. The special-shaped PET embryo tube according to claim 1, characterized in that: The joint further comprises a sleeve sleeved on the top of the cannula, and the annular block is sleeved on the sleeve in an integral manner, wherein the bottom of the sleeve cooperates with the stopper at the top of the liquid storage chamber.

3. The special-shaped PET embryo tube according to claim 2, characterized in that: There is a gap between the sleeve and the cannula, and a first liquid injection head inserted into the cannula and a plurality of second liquid injection heads inserted into the gap between the sleeve and the cannula are formed on the top of the sleeve.

4. The special-shaped PET embryo tube according to claim 3, characterized in that: The plurality of second liquid injection heads are arranged in a ring shape and at equal intervals around the periphery of the first liquid injection head.

5. The special-shaped PET embryo tube according to claim 4, characterized in that: The aperture of the second liquid injection head is smaller than that of the first liquid injection head, and a connecting pipe head is installed on the top of the second liquid injection head.

6. The special-shaped PET embryo tube according to claim 5, characterized in that: The chimeric elastic piece includes a first mounting block installed horizontally on the top of the annular block and a second elastic piece arranged longitudinally. The second elastic piece is arranged perpendicular to the first mounting block, and a first compression spring is provided between the outer wall of the sleeve and the second elastic piece.

7. The special-shaped PET embryo tube according to claim 6, characterized in that: The outer side wall of the top annular head is provided with an unlocking structure, which includes an unlocking block located outside the fitting groove, and an unlocking end block which can be inserted into the fitting groove is formed on the inner wall of the unlocking block.

8. The special-shaped PET embryo tube according to claim 7, characterized in that: The bottom of the unlocking block is rotatably mounted on the bottom wall of the top annular head, and a second compression spring is provided between the outer side wall of the top annular head and the unlocking block.

9. The special-shaped PET embryo tube according to claim 8, characterized in that: A bottom liquid outlet head communicating with the liquid storage cavity is installed at the bottom of the special-shaped tube body.

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