Oral pipe

Abstract

The invention discloses a mouth pipe, and relates to the technical field of packaging appliances, the mouth pipe comprises a mouth pipe assembly, the mouth pipe assembly comprises a mouth pipe fitting I, the outer surface of the mouth pipe fitting I is fixedly provided with a check block and a thread, the thread is located above the check block, the mouth pipe fitting I is provided with a welding groove and a fillet, and the surface of the lower end of the mouth pipe fitting I is provided with a lightening hole; the mouth pipe cover assembly is installed on the mouth pipe assembly and comprises an inner cover arranged at one end of the mouth pipe fitting I in a sleeving mode, an outer cover is arranged on the outer surface of the inner cover in a sleeving mode, an anti-theft part is installed between the inner cover and the mouth pipe fitting I, and a clamping jaw is fixed to the inner wall of the anti-theft part. Through cooperation of the mouth tube assembly and the mouth tube cover assembly, the cover and the first anti-theft ring on the mouth tube are not prone to being separated, the cover cannot be discarded at will, the recycling difficulty is reduced, through cooperation of the protection assembly and the interesting protection assembly, buffering and blocking can be achieved when a child rapidly sucks food, and the bucking condition is reduced; and during extrusion, excessive overflow caused by excessive force application is not easily caused.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging tools, in particular to a mouth tube. Background Art

[0002] Spout bags and stand-up bags are widely used in the packaging of foods such as soy milk / jelly / salad dressing. They are made of multi-layer composite materials, have strong barrier properties and are resistant to high and low temperatures. They are suitable for portable packaging of liquid foods such as soy milk. The top has a built-in spout structure for direct drinking and repeated sealing. Both spout bags and stand-up bags require a mouth tube.

[0003] However, in actual application, there are still some unresolved problems. The following are some common problems with mouth tubes: the lid on most mouth tube nozzle structures is easily separated from the anti-theft ring on the mouth tube, resulting in the lid being discarded at will, which not only affects the environmental appearance but also increases the difficulty of recycling. In addition, the mouth tube is usually a straight, unobstructed design, which lacks a buffer design when children suck quickly, making it easy for them to choke. When squeezing the internal fluid, excessive force is applied, resulting in excessive discharge, exceeding the usage limit. In addition, the mouth tube caps on the market are generally difficult to twist, and children may not be able to twist them open. Summary of the Invention

[0004] The present invention is proposed in view of the above-mentioned problems existing in the existing nozzle tube.

[0005] Therefore, the problem to be solved by the present invention is how to solve the problem that the cover and the anti-theft ring on the mouth tube of most mouth tube nozzle structures are easily separated, and the mouth tube is usually a straight tube with no obstruction design, which lacks a buffer design when children suck quickly, making it easy for them to choke and cough, and when squeezing out the internal fluid, excessive force is applied, resulting in excessive discharge.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a nozzle tube, comprising: The nozzle assembly includes a nozzle pipe part 1, wherein a stopper and a screw thread are fixed to the outer surface of the nozzle pipe part 1, and the screw thread is located above the stopper. The nozzle pipe part 1 is provided with a welding groove and a fillet, and a weight-reducing hole is opened on the lower end surface of the nozzle pipe part; The mouth pipe cover assembly is installed on the mouth pipe assembly, including an inner cover sleeved on one end of the mouth pipe member, an outer cover sleeved on the outer surface of the inner cover, an anti-theft member installed between the inner cover and the mouth pipe member, a claw fixed on the inner wall of the anti-theft member, and a locking thread fixed on the inner wall of the inner cover, which cooperates with the screw thread; An interesting protection assembly is installed on the mouth tube cover assembly, comprising an elastic member installed between the inner cover and the outer cover, a shield being fixed to the lower end of the elastic member, a positioning groove being formed on the outer surface of the inner cover, and a positioning column being fixed on the inner wall of the outer cover and cooperating with the positioning groove; and The protective component is installed on the mouth pipe assembly, including a support member installed in the mouth pipe component, a ring plate is installed on the elastic component, a limiting component is installed on the ring plate, a baffle is installed between the limiting component and the elastic component, and is arranged on the ring plate, and a driving component is installed on the mouth pipe component and cooperates with the elastic component.

[0007] As a preferred solution of the mouth tube described in the present invention, the anti-theft component includes an anti-theft ring 1 which is sleeved on the mouth tube component 1, a connecting rib 1 is fixed between the anti-theft ring 1 and the inner cover, a transverse connecting point is provided on the anti-theft ring 1, and a longitudinal connecting point is provided between the anti-theft ring 1 and the inner cover.

[0008] As a preferred solution of the mouth tube of the present invention, wherein: the inner wall of the inner cover is respectively fixed with sealing ribs 1, 2 and 3, the sealing rib 1 is located on the outside of the sealing rib 2, the sealing rib 3 is located on the side wall of the inner cover, the outer surface of the outer cover is fixed with anti-slip ribs, and a cover is fixed on one end surface of the outer cover.

[0009] As a preferred solution of the mouth tube described in the present invention, wherein: the elastic member includes a spline rod sliding on the inner cover, one end of the spline rod is rotatably connected to the inner wall of the outer cover, and the other end is fixed to the surface of the baffle, the baffle cooperates with the baffle, the inner wall of the outer cover is rotated with a ring 1, the outer surface of the inner cover is rotated with a ring 2, and a spring piece 1 is fixed between the surface of the ring 1 and the surface of the ring 2.

[0010] As a preferred solution of the mouth tube described in the present invention, wherein: the support member includes a groove body opened in the mouth tube member, a sliding frame is sliding in the groove body, a spring is fixed between the surface of the sliding frame and the inner wall of the groove body, a round tube is sliding in the groove body, and its two ends are fixed between the outer surface of the sliding frame and the outer surface of the ring plate, a short rod is rotated on the ring plate, the sliding frame and the round tube, and one end of the short rod is fixed to the baffle surface, and baffles are fixed on the top and bottom of the ring plate, and they slide on the inner wall of the mouth tube member.

[0011] As a preferred solution of the mouth tube described in the present invention, wherein: the limiting member includes a limiting groove and an annular groove opened in the ring plate, a short rod 2 is rotatable on the ring plate, a limiting ring is fixed on the outer surface of the short rod 2, and is located in the limiting groove, a torsion spring is sleeved on the outer surface of the limiting ring, and its two ends are fixed between the surface of the limiting ring and the inner wall of the limiting groove, a bevel gear is fixed on the outer surface of the short rod 2, and is located in the annular groove, a bevel gear ring is rotatable on the inner wall of the annular groove, and it is engaged with the bevel gear, a locking member is installed in one end of the short rod 2, and it cooperates with the baffle cover.

[0012] As a preferred solution of the mouth tube described in the present invention, the locking piece includes a groove opened in one end of the short rod two, a locking block slides in the groove, and cooperates with the baffle, a spring three is fixed between the outer surface of the locking block and the inner wall of the groove, a slide groove is opened on the inner wall of the groove, a slider is fixed on the locking block, and it slides in the slide groove.

[0013] As a preferred solution of the mouth tube described in the present invention, wherein: the driving member includes a moving block sliding in the groove body, and the moving block slides on the sliding frame, the inner surface of the moving block is fixed with teeth, the end surface of the short rod is fixed with a driven gear, and the driven gear cooperates with the teeth, a connecting plate slides in the groove body, one end of which is fixed to one end of the moving block, and the other end of which extends to the outside of the mouth tube member and is fixed with a push block, and a spring 2 is fixed between the outer surface of the moving block and the inner wall of the groove body.

[0014] As a preferred solution of the mouth tube of the present invention, a positioning piece is installed between the inner cover and the outer cover, including a docking column fixed on the outer cover, a docking groove is provided on the outer surface of the inner cover, and the docking column cooperates with the docking column, a mounting groove is provided in the inner cover, a clamping plate slides in the mounting groove, two spring pieces are fixed between the surface of the clamping plate and the inner wall of the mounting groove, a button is fixed at one end of the clamping plate, and a ring groove is provided on the surface of one end of the docking column, and the ring groove cooperates with the clamping plate.

[0015] As a preferred solution of the mouth tube described in the present invention, wherein: a fixing part is installed on the inner cover, including a movable groove opened in the inner cover, a fixed groove is opened on the outer surface of the mouth tube part, a driving block, a transmission block and a fixed block are respectively slid in the movable groove, the transmission block cooperates with the driving block and the fixed block respectively, the driving block cooperates with the outer cover, the fixed block cooperates with the fixed groove, the inner wall of the movable groove is respectively provided with square groove 1 and square groove 2, square block 1 is fixed on the driving block, and it slides in square groove 2, a spring piece 3 is fixed between the surface of square block 1 and the inner wall of square groove 2, square block 2 is fixed on the fixed block, and it slides in square groove 2, a spring piece 4 is fixed between the surface of square block 2 and the inner wall of square groove 2.

[0016] The beneficial effects of the present invention are as follows: through the cooperation of the mouth tube component and the mouth tube cover component, the cover and the anti-theft ring on the mouth tube are not easily separated, so that the cover will not be discarded at will, reducing the difficulty of recycling; through the cooperation of the protective component with the fun protection component, it can buffer and block when children suck quickly, reducing the possibility of choking; when squeezing, it is not easy to cause excessive overflow due to excessive force; and the mouth tube cover is more labor-saving to twist, reducing the probability of children being unable to twist it open. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is the overall three-dimensional structure diagram of the oral tube.

[0019] Figure 2 This is the overall plan view of the mouth pipe.

[0020] Figure 3 It is a sectional stereoscopic diagram of the local structure of the mouth tube.

[0021] Figure 4 A three-dimensional diagram of the mouth tube assembly of the mouth tube.

[0022] Figure 5 A three-dimensional diagram of the stopper for the mouth tube.

[0023] Figure 6 A three-dimensional view of the mouth tube cover assembly of the mouth tube.

[0024] Figure 7 A three-dimensional diagram of the outer cover and locking thread of the mouth tube.

[0025] Figure 8 It is a sectional stereoscopic diagram of the local structure of the mouth tube.

[0026] Figure 9 For oral tube Figure 8 Enlarged view of area A in the middle.

[0027] Figure 10 For oral tube Figure 8 Enlarged view of area B.

[0028] Figure 11 For oral tube Figure 8 Enlarged view of area C in the middle.

[0029] Figure 12 For oral tube Figure 11 Enlarged view of area D in the middle.

[0030] Figure 13 This is a cross-sectional plan view of the local structure of the mouth tube.

[0031] Figure 14 For oral tube Figure 13 Enlarged view of area E in the middle.

[0032] Figure 15 For oral tube Figure 13 Enlarged view of area F in the middle.

[0033] Figure 16 For oral tube Figure 13 Enlarged view of the middle G area.

[0034] Figure 17 For oral tube Figure 16 Enlarged view of the middle H area.

[0035] Figure 18 Plan view of the moving block and driven gear of the mouth pipe.

[0036] Figure 19 This is a three-dimensional diagram of the baffle and circular tube of the mouth tube.

[0037] Figure 20 For oral tube Figure 19 Magnified view of the middle J region.

[0038] Figure 21 For oral tube Figure 20 Enlarged view of the middle K region.

[0039] Figure 22 It is a three-dimensional diagram of the baffle of the mouth pipe.

[0040] Figure 23 This is a three-dimensional diagram of the anti-slip rib and mouth tube assembly in Example 5 of the mouth tube.

[0041] Figure 24 It is a stereoscopic view of the outer cover of the nozzle and the nozzle assembly.

[0042] Figure 25 This is a three-dimensional diagram of the outer cover 2 of the mouth tube and the mouth tube assembly.

[0043] Figure 26 It is a sectional perspective view of the outer cover of the nozzle and the nozzle assembly.

[0044] Figure 27 This is a stereoscopic diagram of the assembly of the mouth tube component 2 and the outer cover 3 in Example 8 of the mouth tube.

[0045] Figure 28 For oral tube Figure 27 Enlarged view of the middle L area.

[0046] Figure 29 It is a partial cross-sectional plan view of the mouth pipe part 2 and outer cover 3 of the mouth pipe.

[0047] Figure 30 This is a three-dimensional diagram of the separated mouth pipe part 2 and outer cover 3 of the mouth pipe.

[0048] Figure 31 After unscrewing the outer cover of the mouth tube, the three-dimensional Figure 1 .

[0049] Figure 32 After unscrewing the outer cover of the mouth tube, the three-dimensional Figure 2 .

[0050] Figure 33 This is a three-dimensional cross-sectional plan view of the outer cover of the mouth tube.

[0051] Figure 34 This is a three-dimensional diagram of the assembly of the mouth pipe part 2 and the outer cover 4 of the mouth pipe.

[0052] Figure 35 The outer cover of the mouth tube is five-dimensional Figure 1 .

[0053] Figure 36 The outer cover of the mouth tube is five-dimensional Figure 2 .

[0054] Figure 37 This is a five-dimensional view of the outer cover of the mouth tube.

[0055] In the figure: 1. Mouth pipe assembly; 11. Mouth pipe fitting 1; 12. Stopper; 13. Screw thread; 14. Welding groove; 15. Fillet; 16. Weight reduction hole; 2. Mouth pipe cover assembly; 21. Inner cover; 22. Outer cover; 23. Anti-theft part; 24. Claw; 25. Locking thread; 26. Sealing rib 1; 27. Sealing rib 2; 28. Sealing rib 3; 29. ​​Anti-skid rib; 210. Cover; 3. Interesting protection assembly; 31. Elastic part; 32. Block cover; 33. Positioning groove; 34. Positioning column; 4. Protection assembly; 41. Support member; 42. Ring plate; 43. Limiting member; 44. Baffle; 45. Driving member; 46 , positioning piece; 47, fixing piece; 23-1, anti-theft ring 1; 23-2, connecting rib 1; 23-3, horizontal connection point; 23-4, longitudinal connection point; 31-1, spline rod; 31-2, circular ring 1; 31-3, circular ring 2; 31-4, spring piece 1; 41-1, groove body; 41-2, sliding frame; 41-3, spring 1; 41-4, round tube; 41-5, short rod 1; 41-6, stop bar; 45-1, moving block; 45-2, teeth; 45-3, driven gear; 45-4, connecting plate; 45-5, push block; 45-6, spring 2; 43-1, limit groove; 43-2, Ring groove; 43-3, short rod 2; 43-4, limit ring; 43-5, torsion spring; 43-6, bevel gear ring; 43-7, bevel gear; 43-8, locking piece; 43-81, groove; 43-82, locking block; 43-83, spring 3; 43-84, slide; 43-85, slider; 46-1, docking column; 46-2, docking groove; 46-3, mounting groove; 46-4, clamping plate; 46-5, spring piece 2; 46-6, button; 46-7, ring groove; 47-1, movable groove; 47-2, fixed groove; 47-3, drive block; 47-4, transmission block; 47-5, fixed Block; 47-6, square groove one; 47-7, square block one; 47-8, spring piece three; 47-9, square groove two; 47-10, square block two; 47-11, spring piece four; 22-11, outer cover one; 22-12, ring sleeve one; 22-13, anti-slip groove one; 22-14, connecting block one; 22-21, outer cover two; 22-22, ring sleeve two; 22-23, anti-slip groove two; 22-24, connecting block two; 51, mouth pipe fitting two; 52, outer cover three; 53, buckle one; 54, buckle two; 55, anti-theft ring two; 56, buckle three; 57, connecting rib two; 58, outer cover four; 59, outer cover five. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0057] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0058] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0059] Example 1 Reference Figures 1 to 10 , which is the first embodiment of the present invention, provides a mouth tube, which includes a mouth tube assembly 1, a mouth tube cover assembly 2, an interesting protection assembly 3 and a protection assembly 4. Through the cooperation of the mouth tube assembly 1 and the mouth tube cover assembly 2, the cover and the anti-theft ring 23-1 on the mouth tube are not easily separated, so that the cover will not be discarded at will. Through the cooperation of the protection assembly 4 and the interesting protection assembly 3, it can buffer and block when children suck quickly, reduce the possibility of choking, and prevent excessive overflow due to excessive force when squeezing.

[0060] Specifically, the mouth pipe assembly 1 includes a mouth pipe fitting 11, and a stopper 12 and a screw thread 13 are fixed on the outer surface of the mouth pipe fitting 11, and the screw thread 13 is located above the stopper 12. Through the setting of the screw thread 13, it cooperates with the locking thread 25 on the cover to thread the mouth pipe cover assembly 2 to be connected to the mouth pipe fitting 11. There are four stops 12 and they are provided with an arc surface. During installation, when the mouth pipe cover assembly 2 is rotated on the mouth pipe fitting 11 to rotate the claw 24, it can rotate over the stopper 12 with the help of the arc surface.

[0061] The mouth pipe fitting 11 is respectively provided with a welding groove 14 and a rounded corner 15, and a weight-reducing hole 16 is opened on the lower end surface of the mouth pipe fitting 11. The setting of the welding groove 14 can prevent the curling welding from being more firm, and the setting of the rounded corner 15 can prevent the packaging bag from slipping open. The setting of the weight-reducing hole 16 can reduce the weight by preventing the leakage of glue and making it lightweight.

[0062] Specifically, the mouth tube cover assembly 2 is installed on the mouth tube assembly 1, including an inner cover 21 which is sleeved on one end of the mouth tube member 11, and an outer cover 22 is sleeved on the outer surface of the inner cover 21. The inner cover 21 and the outer cover 22 are connected by an elastic member 31. When it is not necessary to remove or install the mouth tube cover assembly 2 from the mouth tube assembly 1, there is no docking limit between the inner cover 21 and the outer cover 22. The outer cover 22 can be moved to rotate, simulating the rotation of a gyroscope, increasing the fun, and preventing accidental opening. Only after the outer cover 22 and the inner cover 21 are docked and limited, the outer cover 22 can be rotated to rotate the inner cover 21 to realize the opening and closing operation.

[0063] An anti-theft part 23 is installed between the inner cover 21 and the mouth tube assembly 11. A claw 24 is fixed to the inner wall of the anti-theft part 23. A locking thread 25 is fixed to the inner wall of the inner cover 21 and cooperates with the screw thread 13. Through the setting of the anti-theft part 23, when unscrewing and rotating, the block 12 blocks the anti-theft part 23 to form a relative movement to pull the connection point apart. The anti-theft part 23 is opened and unsealed. The screw thread 13 and the locking thread 25 are both intermittent. Through such a setting, when the mouth tube cover assembly 2 is rotated and connected to the mouth tube assembly 1, it is more labor-saving to screw it.

[0064] Specifically, the fun protection component 3 is installed on the mouth tube cover component 2, and includes an elastic member 31 installed between the inner cover 21 and the outer cover 22. The elastic member 31 applies force to the outer cover 22 to maintain a certain distance between the outer cover 22 and the inner cover 21, so that the outer cover 22 can rotate normally when it is turned and rotated, and can move the outer cover 22 on the inner cover 21 when external force is applied. A blocking cover 32 is fixed to the lower end of the elastic member 31, a positioning groove 33 is provided on the outer surface of the inner cover 21, and a positioning column 34 is fixed to the inner wall of the outer cover 22 and cooperates with the positioning groove 33.

[0065] Through the setting of the shield 32, when pressure is applied to the outer cover 22 and it moves on the inner cover 21, it can be moved to push the fluid at the inner end of the mouth pipe fitting 11 into it, to prevent the pressure at the end of the mouth pipe fitting 11 from being too high and too much fluid from being directly sprayed out when it is opened. A sealing ring is provided between the shield 32 and the mouth pipe fitting 11 to play a sealing role. Two positioning posts 34 are provided on the outer cover 22, and two positioning grooves 33 are provided on the inner cover 21. After the positioning posts 34 on the outer cover 22 are inserted into the positioning grooves 33 on the inner cover 21, the outer cover 22 is rotated to rotate the inner cover 21, and then the locking thread 25 is unscrewed from the screw thread 13, so that the inner cover 21 and the outer cover 22 are removed from the mouth pipe fitting 11.

[0066] Specifically, the protective component 4 is installed on the mouth tube component 1, including a support member 41 installed in the mouth tube member 11, a ring plate 42 is installed on the elastic member 31, a limiting member 43 is installed on the ring plate 42, a baffle 44 is installed between the limiting member 43 and the elastic member 31, and is arranged on the ring plate 42, and the ring plate 42 is supported by the support member 41. When the ring plate 42 and the baffle 44 are squeezed and moved, the support member 41 is compressed and deformed to provide a force for the reset of the ring plate 42 and provide support for the installation of the baffle 44. A through hole is opened on the ring plate 42, and the baffle 44 rotates in the through hole to realize the normal discharge of the bagged material through the through hole. A driving member 45 is installed on the mouth tube member 11 and cooperates with the elastic member 31.

[0067] The setting of the limiter 43 provides support for the installation of the ring plate 42. At the same time, when one baffle 44 rotates, multiple baffles 44 can rotate simultaneously. The weight distribution of the baffle 44 is uneven. Under normal conditions, the baffle 44 is in an inclined state. When the fun protection component 3 and the cover are removed from the mouth tube component 1, the normal discharge of the fluid will not be affected. When the bag is sucked out quickly and squeezed vigorously, the baffle 44 is subjected to a large force. Due to the uneven shape distribution, the force it receives is also different. The large area overcomes the small area, causing the baffle 44 to rotate to partially block the through hole, thereby preventing children from choking when sucking quickly, and excessive force when squeezing the internal fluid, resulting in excessive discharge and exceeding the usage.

[0068] When the operation is stopped, the tilt will slowly resume. When sucking at an appropriate speed or squeezing with an appropriate force, the baffle 44 will not affect the use. Through the setting of the driving member 45, when the fun protection component 3 and the cover are removed from the mouth tube component 1 and the baffle 44 needs to be fully opened, one baffle 44 can be rotated, and then with the cooperation of the limit member 43, multiple baffles 44 can be opened, so that the internal material can be quickly sucked out or squeezed out.

[0069] Example 2 Reference Figures 2 to 22 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0070] Specifically, the anti-theft component 23 includes an anti-theft ring 23-1 that is sleeved on the mouth pipe fitting 11. A connecting rib 23-2 is fixed between the anti-theft ring 23-1 and the inner cover 21. The anti-theft ring 23-1 and the inner cover 21 are connected into one piece through the connecting rib 23-2, which is environmentally friendly. A horizontal connecting point 23-3 is provided on the anti-theft ring 23-1, and a longitudinal connecting point 23-4 is provided between the anti-theft ring 23-1 and the inner cover 21.

[0071] By setting the anti-theft ring 23-1, when rotating the lid, with the cooperation of the screw thread 13 and the locking thread 25, the inner cover 21 is rotated upward, so that the claw 24 on the anti-theft ring 23-1 is blocked by the block 12 on the mouth pipe fitting 11. By setting the longitudinal connection point 23-4 and the transverse connection point 23-3, the lid is rotated upward. After the claw 24 on the anti-theft ring 23-1 is blocked by the block 12 on the mouth pipe fitting 11, the longitudinal connection point 23-4 and the transverse connection point 23-3 are pulled apart, and the anti-theft ring 23-1 acts on the lid through the connecting rib 23-2 to connect and detach from the mouth pipe fitting 11.

[0072] The inner wall of the inner cover 21 is fixed with sealing rib 1 26, sealing rib 27 and sealing rib 3 28 respectively. The sealing rib 1 26 is located on the outside of the sealing rib 27, and the sealing rib 3 28 is located on the side wall of the inner cover 21. Through the setting of the sealing rib 1 26 and the sealing rib 3 28, the sealing rib 1 26 and the sealing rib 3 28 fix the wall of the mouth pipe fitting 11 in two directions. Even if the mouth pipe fitting 11 is deformed into an ellipse, it can be adjusted back to a circle to form a reliable seal. The outer surface of the outer cover 22 is fixed with anti-slip ribs 29. Three anti-slip ribs 29 are provided on one outer cover 22. A cover 210 is fixed to the surface of one end of the outer cover 22.

[0073] The second sealing rib 27 forms two seals to make the seal more reliable. The anti-slip rib 29 increases the friction between the hand and the lid when rotating it, so that the lid can be removed more easily. The cover 210 blocks the outer cover 22 and the inner cover 21 to prevent the entry of debris.

[0074] The elastic member 31 includes a spline rod 31-1 that slides on the inner cover 21. One end of the spline rod 31-1 is rotatably connected to the inner wall of the outer cover 22, and the other end is fixed to the surface of the baffle 32. The spline rod 31-1 passes through the inner cover 21 and is slidably connected thereto. The spline rod 31-1 and the inner cover 21 are sealed. The spline rod 31-1 and the rotating end of the outer cover 22 will not be separated. The baffle 32 cooperates with the baffle 44. A ring 1 31-2 is rotated on the inner wall of the outer cover 22, and a ring 2 31-3 is rotated on the outer surface of the inner cover 21. A spring piece 1 31-4 is fixed between the surface of the ring 1 31-2 and the surface of the ring 2 31-3.

[0075] The ring 1 31-2 will not separate from the inner wall of the outer cover 22 during rotation, and the ring 2 31-3 will not separate from the surface of the inner cover 21 during rotation. With such an arrangement, when the outer cover 22 is rotated, the outer cover 22 will not separate from the spline rod 31-1. At the same time, the ring 1 31-2, the ring 2 31-3 and the spring piece 1 31-4 will not affect its rotation too much. The spring piece 1 31-4 creates a certain gap between the inner cover 21 and the outer cover 22, so that when the outer cover 22 is not under pressure, the positioning column 34 will not be inserted into the positioning groove 33, and the rotation of the outer cover 22 will not be affected. At the same time, the spline rod 31-1 enables the shield 32 to act on the sealing rib 1 26, thereby improving the sealing effect. When pressure is applied to the outer cover 22 to deform it, the elastic force generated provides a force for the outer cover 22 and the positioning column 34 to be reset.

[0076] The support member 41 includes a groove body 41-1 opened in the mouth pipe fitting 11, a sliding frame 41-2 slides in the groove body 41-1, a spring 41-3 is fixed between the surface of the sliding frame 41-2 and the inner wall of the groove body 41-1, a circular tube 41-4 slides in the groove body 41-1, and its two ends are fixed between the outer surface of the sliding frame 41-2 and the outer surface of the ring plate 42, a short rod 41-5 is rotated on the ring plate 42, the sliding frame 41-2 and the circular tube 41-4, and one end of the short rod 41-5 is fixed to the surface of the baffle 44, and a baffle 41-6 is fixed on the top and bottom of the ring plate 42, and it slides on the inner wall of the mouth pipe fitting 11, and a sealing treatment is performed between the baffle 41-6 and the mouth pipe fitting 11 to prevent substances from entering the groove body 41-1.

[0077] The sliding frame 41-2 is supported by a spring 41-3, which in turn supports the circular tube 41-4 and the ring plate 42, thereby supporting the baffle 44. When the spline rod 31-1 drives the baffle cover 32 to move as the outer cover 22 moves, the baffle 44 and the baffle bar 41-6 are pushed by the baffle cover 32 to move, so that the ring plate 42, the baffle 44, the circular tube 41-4, the short rod 41-5 and the sliding frame 41-2 move. The spring 41-3 is compressed to provide elastic force, so that the inclined baffle 44 contacts the surface of the baffle cover 32. As the inner cover 21 rotates and moves upward, the spline rod 31-1 drives the baffle cover 32 to rotate and move upward, and the baffle 44 scrapes off the objects carried on the surface of the baffle cover 32 to prevent waste.

[0078] The limiting member 43 includes a limiting groove 43-1 and an annular groove 43-2 opened in the ring plate 42. A short rod 43-3 is rotatably provided on the ring plate 42. The short rod 43-3 passes through the ring plate 42 and is rotatably connected thereto. A limiting ring 43-4 is fixed to the outer surface of the short rod 43-3 and is located in the limiting groove 43-1. Through the setting of the limiting groove 43-1 and the limiting ring 43-4, the short rod 41-5 is limited so that it can rotate on the ring plate 42 and cannot move.

[0079] A torsion spring 43-5 is sleeved on the outer surface of the limiting ring 43-4, and its two ends are fixed between the surface of the limiting ring 43-4 and the inner wall of the limiting groove 43-1. Through the setting of the torsion spring 43-5, when the limiting ring 43-4, the short rod 2 43-3, the baffle 44 and the short rod 1 41-5 rotate, it deforms, and the force generated provides a force for the reset of the limiting ring 43-4, the short rod 2 43-3, the baffle 44 and the short rod 1 41-5. A bevel gear 43-7 is fixed on the outer surface of the short rod 2 43-3 and is located in the annular groove 43-2. ​​A bevel gear ring 43-6 is rotated on the inner wall of the annular groove 43-2 and is engaged with the bevel gear 43-7. A locking piece 43-8 is installed in one end of the short rod 2 43-3 and cooperates with the blocking cover 32.

[0080] By setting a bevel gear ring 43-6 and multiple bevel gears 43-7, when a short rod 1 41-5 rotates to rotate the baffle 44, the short rod 2 43-3 on the baffle 44 and the bevel gear 43-7 thereon can rotate, thereby driving the bevel gear ring 43-6 to rotate, driving multiple bevel gears 43-7 to rotate, and then causing multiple baffles 44 to rotate synchronously. A cylindrical protrusion is provided at the lower end of the baffle cover 32. By setting a locking piece 43-8, when the cylindrical protrusion at the lower end of the baffle cover 32 is inserted into the ring plate 42, the locking piece 43-8 can be acted on, so that the short rod 2 43-3 is locked and will not rotate, thereby preventing the baffle 44 and the short rod 1 41-5 from rotating. The lock can only be released when the cylindrical protrusion at the lower end of the baffle cover 32 is separated from the ring plate 42.

[0081] Example 3 Reference Figures 2 to 22 , which is the third embodiment of the present invention, is based on the first two embodiments.

[0082] Specifically, the locking member 43-8 includes a groove 43-81 provided in one end of the short rod 43-3, a locking block 43-82 slides in the groove 43-81, and cooperates with the blocking cover 32, and a spring three 43-83 is fixed between the outer surface of the locking block 43-82 and the inner wall of the groove 43-81. The spring three 43-83 compresses the slider 43-85 when it moves with the locking block 43-82, thereby providing a force for resetting the slider 43-85 and the locking block 43-82. A sliding groove 43-84 is provided on the inner wall of the groove 43-81, and a slider 43-85 is fixed on the locking block 43-82, and slides in the sliding groove 43-84. The sliding groove 43-84 and the slider 43-85 are used to limit and guide the locking block 43-82 so that it can move within a certain range.

[0083] One end of the locking block 43-82 is provided with an arc surface, and cooperates with the cylindrical protrusion provided at the lower end of the baffle 32, and one side of the arc surface is chamfered. The cylindrical protrusion at the lower end of the baffle 32 is chamfered. Through the setting, the cylindrical protrusion can be inserted into the ring plate 42 more smoothly, and at the same time, the locking block 43-82 can be better squeezed and moved to move it into the groove 43-81. As the arc surface of the moving locking block 43-82 fits with the surface of the cylindrical protrusion, the locking block 43-82 can be limited to prevent rotation without affecting the rotation of the baffle 32, thereby limiting the short rod 2 43-3, the baffle 44 and the short rod 1 41-5.

[0084] The driving member 45 includes a moving block 45-1 that slides in the groove 41-1 and slides on the slide frame 41-2. The inner surface of the moving block 45-1 is fixed with teeth 45-2. The driven gear 45-3 is fixedly sleeved on the surface of the short rod 41-5. The driven gear 45-3 is fixed on one end surface of the short rod 41-5 and cooperates with the teeth 45-2. The teeth 45-2 are set at the lower position of the moving block 45-1. According to the design, when the short rod 41-5 moves with the sliding frame 41-2, the driven gear 45-3 will not engage with the teeth 45-2 to cause the short rod 41-5 to rotate. A connecting plate 45-4 slides in the groove body 41-1, one end of which is fixed to one end of the moving block 45-1, and the other end extends to the outside of the mouth pipe 11 and is fixed with a push block 45-5. A spring 2 45-6 is fixed between the outer surface of the moving block 45-1 and the inner wall of the groove body 41-1.

[0085] By setting the second spring 45-6, the moving block 45-1 will not move when it is not subjected to force. When the moving block 45-1 is subjected to force and moves, it is compressed to generate elastic force, providing a force for the reset of the moving block 45-1, the connecting plate 45-4 and the pushing block 45-5. The pushing block 45-5 and the moving block 45-1 are indirectly connected through the connecting plate 45-4. By setting the pushing block 45-5, when it is pushed to move, it can drive the connecting plate 45-4 and the moving block 45-1 to move. When the fun protection component 3 and the cover are removed from the mouth tube component 1, as the moving block 45-1 moves, the teeth 45-2 on it are driven to engage with the driven gear 45-3, driving it to rotate, thereby rotating the short rod 1 41-5, the baffle 44 and the short rod 2 43-3 and the bevel gear 43-7 thereon. With the cooperation of the bevel gear ring 43-6, multiple baffles 44 are rotated and adjusted at the same time to adjust its outlet.

[0086] Example 4 Reference Figures 8 to 15 , which is the fourth embodiment of the present invention, and is based on the first three embodiments.

[0087] Specifically, a positioning member 46 is installed between the inner cover 21 and the outer cover 22, including a docking column 46-1 fixed on the outer cover 22, and a docking groove 46-2 is provided on the outer surface of the inner cover 21, and the docking column 46-1 cooperates with the docking column 46-1. Through the setting of the docking groove 46-2, when the docking column 46-1 is inserted into it, rotating the outer cover 22 can drive the inner cover 21 to rotate, and a mounting groove 46-3 is provided in the inner cover 21, and a card plate 46-4 slides in the mounting groove 46-3, and a second spring piece 46-5 is fixed between the surface of the card plate 46-4 and the inner wall of the mounting groove 46-3. Through the setting of the second spring piece 46-5, when the card plate 46-4 moves, it is deformed to provide a force for the reset of the card plate 46-4, and a button 46-6 is fixed at one end of the card plate 46-4, and an annular groove 46-7 is provided on the surface of one end of the docking column 46-1, and the annular groove 46-7 cooperates with the card plate 46-4.

[0088] One end of the card plate 46-4 is provided with a bevel, and one end of the docking column 46-1 is chamfered. Through such a setting, when the docking column 46-1 is inserted into the docking groove 46-2, the card plate 46-4 is squeezed to move. When one end of the card plate 46-4 corresponds to the annular groove 46-7, one end of the card plate 46-4 is inserted into the annular groove 46-7, the docking column 46-1 is limited and fixed, and then the outer cover 22 and the inner cover 21 after the force is applied are locked. There is no need to apply pressure to the outer cover 22 all the time. The inner cover 21 can be rotated by rotating the outer cover 22. When it needs to be unlocked, press the button 46-6 to move one end of the card plate 46-4 out of the annular groove 46-7, and the outer cover 22 is reset under the action of the spring piece 31-4.

[0089] A fixing part 47 is installed on the inner cover 21, including a moving groove 47-1 opened in the inner cover 21, and a fixing groove 47-2 is opened on the outer surface of the mouth pipe fitting 11. A driving block 47-3, a transmission block 47-4 and a fixing block 47-5 slide in the moving groove 47-1 respectively, and the transmission block 47-4 cooperates with the driving block 47-3 and the fixing block 47-5 respectively. The driving block 47-3 cooperates with the outer cover 22, and the fixing block 47-5 cooperates with the fixing groove 47-2. By inserting one end of the fixing block 47-5 into the fixing groove 47-2, the inner cover 21 and the mouth pipe fitting 11 can be reinforced, and the inner cover 21 cannot be opened when the inner cover 21 is rotated directly. It can only be unlocked when the outer cover 22 moves on the inner cover 21 and the docking column 46-1 is inserted into the docking groove 46-2 and locked. The outer cover 22 is rotated to rotate the inner cover 21.

[0090] During this process, the outer cover 22 moves and is squeezed into contact with the inclined surface of one end of the driving block 47-3, so that the driving block 47-3 moves to squeeze the transmission block 47-4 to move, and then squeeze the fixed block 47-5 to move, so that one end of it is disengaged from the fixed groove 47-2 to achieve unlocking. The opposite is true during installation. After the card plate 46-4 releases the limit of the docking column 46-1, the outer cover 22 is reset under the action of the spring piece 31-4, and the outer cover 22 is separated from the driving block 47-3. Under the action of the fixing block 47-5 restoring its reset, one end of it is inserted into the fixed groove 47-2 for limiting.

[0091] The inner wall of the moving groove 47-1 is respectively provided with a square groove 1 47-6 and a square groove 2 47-9. A square groove 1 47-7 is fixed on the driving block 47-3, and the driving block 47-3 slides in the square groove 2 47-9. The driving block 47-3 is limited and guided by the square groove 1 47-6 and the square groove 1 47-7. A spring piece 3 47-8 is fixed between the surface of the square piece 1 47-7 and the inner wall of the square groove 2 47-9. Through the setting of the spring piece 3 47-8, the driving block 47-3 and the square piece 1 47- 7 provides a reset force after movement, a second block 47-10 is fixed on the fixed block 47-5, and it slides in the second square groove 47-9, and the fixed block 47-5 is limited and guided by the second square groove 47-9 and the second block 47-10. A fourth spring piece 47-11 is fixed between the surface of the second block 47-10 and the inner wall of the second square groove 47-9. Through the setting of the third spring piece 47-8, a reset force is provided for the fixed block 47-5 and the second block 47-10 after movement.

[0092] When in use, the inner cover 21 and the outer cover 22 are connected by an elastic member 31. When there is no need to remove or install the mouth tube cover assembly 2 from the mouth tube assembly 1, there is no docking limit between the inner cover 21 and the outer cover 22. The outer cover 22 can be moved to simulate the rotation of a gyroscope, which increases the fun and can also prevent accidental opening. When pressure is applied to the outer cover 22 and it moves on the inner cover 21, the baffle 32 can be moved to push the fluid at the inner end of the mouth tube fitting 11 into it, so as to prevent the pressure at the end of the mouth tube fitting 11 from being too high and too much fluid from being directly sprayed out when it is opened.

[0093] Insert the positioning column 34 into the positioning groove 33, and the positioning member 46 positions and connects the outer cover 22 and the inner cover 21. At the same time, the fixing member 47 releases the limit between the corresponding pipe fitting 11 and the inner cover 21. When the baffle 32 moves, the baffle 44 and the baffle bar 41-6 are pushed by the baffle 32 to move, so that the ring plate 42, the baffle 44, the round tube 41-4, the short rod 41-5 and the slide frame 41-2 move, and the spring 41-3 is compressed to provide elastic force, so that the inclined baffle 44 contacts the surface of the baffle 32. As the inner cover 21 rotates and moves upward, the spline rod 31-1 drives the baffle 32 to rotate and move upward, and the baffle 44 scrapes off the objects carried on the surface of the baffle 32 to prevent waste.

[0094] When the bag is sucked out quickly and squeezed vigorously, the baffle 44 is subjected to a large force to rotate to partially block the through hole, thereby preventing children from choking when sucking quickly, and excessive force when squeezing the internal fluid, resulting in excessive discharge and exceeding the usage amount. Through the setting of the driving member 45, when the fun protection component 3 and the cover are removed from the mouth tube component 1 and the baffle 44 needs to be fully opened, one baffle 44 can be rotated, and then with the cooperation of the limit member 43, multiple baffles 44 can be opened to quickly suck out or squeeze out the internal material.

[0095] Example 5 Reference Figure 23 , which is the fifth embodiment of the present invention, and is based on the previous four embodiments.

[0096] Specifically, four anti-slip ribs 29 are provided on one outer cover 22 .

[0097] Example 6 Reference Figure 24 and 25 , which is the sixth embodiment of the present invention, and is based on the previous four embodiments.

[0098] Specifically, the outer cover 22 includes an outer cover 22-11, and the outer surface of the outer cover 22-11 is fixedly connected to a ring sleeve 22-12. There is a movable gap between the surface of the ring sleeve 22-12 and the outer surface of the outer cover 22-11. Its deformation when squeezed can protect the outer cover 22-11. The outer surface of the ring sleeve 22-12 is provided with an anti-slip groove 22-13. The upper end of the outer cover 22-11 is fixedly connected to a connecting block 22-14.

[0099] There are a plurality of anti-slip grooves 22-13, which are arranged in a circular array on the outer surface of the ring sleeve 22-12. The anti-slip grooves 22-13 increase the friction between the hand and the ring sleeve 22-12 when the outer cover 22 is rotated, and reduce the slippage when the outer cover 22-11 is twisted. The upper end of the outer cover 22-11 is strengthened by the connection block 22-14.

[0100] Example 7 Reference Figure 25 , which is the seventh embodiment of the present invention, and is based on the previous four embodiments.

[0101] Specifically, the outer cover 22 includes an outer cover 22-21, and the outer surface of the outer cover 22-21 is fixedly connected to a ring sleeve 22-22. There is a movable gap between the surface of the ring sleeve 22-22 and the outer surface of the outer cover 22-21. When squeezed, its deformation can protect the outer cover 22-21. The outer surface of the ring sleeve 22-22 is provided with an anti-slip groove 22-23, and the upper end of the outer cover 22-21 is fixedly connected to a connecting block 22-24.

[0102] There are a plurality of anti-slip grooves 22-23 arranged in a circular array on the outer surface of the ring sleeve 22-22. The anti-slip grooves 22-23 increase the friction between the hand and the ring sleeve 22-22 when the outer cover 22 is rotated, thereby reducing the slippage when the outer cover 22-21 is twisted. The upper end of the outer cover 22-21 is reinforced by the connection block 22-24.

[0103] In summary, with the cooperation of the mouth tube component 1 and the mouth tube cover component 2, the cover and the anti-theft ring 23-1 on the mouth tube are not easy to separate. Compared with the existing technology, the cover will not be discarded at will, reducing the difficulty of recycling. With the cooperation of the protective component 4 and the fun protection component 3, it can buffer and block when children suck quickly, reducing the possibility of choking. Compared with the existing technology, it is not easy to cause excessive overflow due to excessive force when squeezing, and the mouth tube cover is more labor-saving to twist, reducing the probability of children being unable to twist it open.

[0104] Example 8 Reference Figures 27 to 33 , which is the eighth embodiment of the present invention, is based on the previous four embodiments.

[0105] It also includes an opening pipe fitting 2 51, the upper end of which is threadedly connected to an outer cover 3 52, and a buckle 1 53 and a buckle 2 54 are fixed to the opening pipe fitting 2 51 respectively, an anti-theft ring 2 55 is fixed to the bottom of the outer cover 3 52, and a buckle 3 56 is fixed to the inner wall of the outer cover 3 52, and it cooperates with the buckle 1 53 and the buckle 2 54, and a connecting rib 2 57 is fixed on the anti-theft ring 2 55 and between it and the outer cover 3 52, and the opening pipe fitting 2 51 is also equipped with an outer cover 4 58 and an outer cover 59 that cooperate with it.

[0106] Two anti-theft rings 2 55 are provided on each of the outer cover 3 52 , the outer cover 4 58 and the outer cover 5 59 . The two anti-theft rings 2 55 can be combined into a circle. Four connecting ribs 2 57 are provided on each of the anti-theft rings 2 55 . The two anti-theft rings 2 55 form a whole with the cover body through the eight connecting ribs 2 57 . The cover and the mouth tube are tightly connected together through the screw thread 13 and the locking thread 25 . After the cover and the mouth tube are tightened, the sealing rib on the cover and the sealing surface of the mouth tube have an interference fit to play a sealing role. After the lid and the mouth tube are tightened, the buckle three 56 on the anti-theft ring second 55 is completely stuck with the buckle one 53 and the buckle two 54 on the mouth tube in the counterclockwise rotation direction of opening the lid. When the lid is unscrewed counterclockwise, the buckle three 56 on the anti-theft ring second 55 is stuck by the buckle one 53 on the mouth tube, and the anti-theft ring second 55 and the outer cover three 52 form a relative movement to break the connecting rib two 57. Continue to twist the buckle three 56 on the anti-theft ring second 55 to continue to contact the buckle two 54 on the mouth tube to further break the connecting rib two 57.

[0107] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A mouth tube, characterized in that: include, A mouth pipe assembly (1) comprises a mouth pipe fitting (11), wherein a stopper (12) and a screw thread (13) are fixed to the outer surface of the mouth pipe fitting (11), and the screw thread (13) is located above the stopper (12), and a welding groove (14) and a fillet (15) are provided on the mouth pipe fitting (11), and a weight reduction hole (16) is opened on the lower end surface of the mouth pipe fitting (11); The mouth pipe cover assembly (2) is installed on the mouth pipe assembly (1), comprising an inner cover (21) sleeved on one end of the mouth pipe member (11), an outer cover (22) sleeved on the outer surface of the inner cover (21), an anti-theft member (23) installed between the inner cover (21) and the mouth pipe member (11), a claw (24) fixed on the inner wall of the anti-theft member (23), and a locking thread (25) fixed on the inner wall of the inner cover (21) and matched with the thread (13); An interesting protection component (3) is installed on the mouth tube cover component (2), comprising an elastic member (31) installed between the inner cover (21) and the outer cover (22), a shield (32) being fixed to the lower end of the elastic member (31), a positioning groove (33) being provided on the outer surface of the inner cover (21), and a positioning column (34) being fixed on the inner wall of the outer cover (22) and cooperating with the positioning groove (33); and, The protective assembly (4) is mounted on the mouth pipe assembly (1), comprising a support member (41) mounted in the mouth pipe member (11), a ring plate (42) mounted on the elastic member (31), a limit member (43) mounted on the ring plate (42), a baffle (44) mounted between the limit member (43) and the elastic member (31), and arranged on the ring plate (42), and a driving member (45) mounted on the mouth pipe member (11) and cooperating with the elastic member (31).

2. The mouthpiece according to claim 1, wherein: The anti-theft component (23) comprises an anti-theft ring (23-1) sleeved on the mouth pipe (11), a connecting rib (23-2) fixed between the anti-theft ring (23-1) and the inner cover (21), a transverse connecting point (23-3) provided on the anti-theft ring (23-1), and a longitudinal connecting point (23-4) provided between the anti-theft ring (23-1) and the inner cover (21).

3. The mouthpiece according to claim 2, wherein: The inner wall of the inner cover (21) is respectively fixed with a sealing rib 1 (26), a sealing rib 2 (27) and a sealing rib 3 (28), wherein the sealing rib 1 (26) is located outside the sealing rib 2 (27), and the sealing rib 3 (28) is located on the side wall of the inner cover (21). The outer surface of the outer cover (22) is fixed with an anti-slip rib (29), and a cover (210) is fixed to one end surface of the outer cover (22).

4. The mouthpiece according to claim 1, wherein: The elastic member (31) includes a spline rod (31-1) sliding on the inner cover (21), one end of the spline rod (31-1) is rotatably connected to the inner wall of the outer cover (22), and the other end is fixed to the surface of the baffle (32), the baffle (32) cooperates with the baffle (44), a circular ring (31-2) is rotatably provided on the inner wall of the outer cover (22), a circular ring (31-3) is rotatably provided on the outer surface of the inner cover (21), and a spring piece (31-4) is fixed between the surface of the circular ring (31-2) and the surface of the circular ring (31-3).

5. The mouthpiece according to claim 1, wherein: The support member (41) includes a groove body (41-1) opened in the mouth pipe member (11), a sliding frame (41-2) slides in the groove body (41-1), a spring (41-3) is fixed between the surface of the sliding frame (41-2) and the inner wall of the groove body (41-1), a circular tube (41-4) slides in the groove body (41-1), and its two ends are fixed between the outer surface of the sliding frame (41-2) and the outer surface of the ring plate (42), a short rod (41-5) is rotatable on the ring plate (42), the sliding frame (41-2) and the circular tube (41-4), and one end of the short rod is fixed to the surface of the baffle (44), and a baffle (41-6) is fixed on the top and bottom of the ring plate (42), and slides on the inner wall of the mouth pipe member (11).

6. The mouthpiece according to claim 5, wherein: The limiting member (43) includes a limiting groove (43-1) and a ring groove (43-2) provided in the ring plate (42). A short rod (43-3) is rotatably provided on the ring plate (42). A limiting ring (43-4) is fixed on the outer surface of the short rod (43-3) and is located in the limiting groove (43-1). A torsion spring (43-5) is sleeved on the outer surface of the limiting ring (43-4), and its two ends are fixed to the limiting ring (43-5). 3-4) surface and the inner wall of the limiting groove (43-1), a bevel gear (43-7) is fixed on the outer surface of the short rod (43-3) and is located in the annular groove (43-2), a bevel gear ring (43-6) is rotated on the inner wall of the annular groove (43-2), and it is engaged with the bevel gear (43-7), and a locking piece (43-8) is installed in one end of the short rod (43-3) and cooperates with the blocking cover (32).

7. The mouthpiece according to claim 6, wherein: The locking member (43-8) includes a groove (43-81) provided in one end of the second short rod (43-3), a locking block (43-82) sliding in the groove (43-81) and cooperating with the blocking cover (32), a spring (43-83) fixed between the outer surface of the locking block (43-82) and the inner wall of the groove (43-81), a sliding groove (43-84) provided on the inner wall of the groove (43-81), a slider (43-85) fixed on the locking block (43-82) and sliding in the sliding groove (43-84).

8. The mouthpiece according to claim 5, wherein: The driving member (45) includes a moving block (45-1) sliding in the groove body (41-1) and sliding on the slide frame (41-2), the inner surface of the moving block (45-1) is fixed with teeth (45-2), and the one end surface of the short rod (41-5) is fixed with a driven gear (45-3) and matched with the teeth (45-2), a connecting plate (45-4) slides in the groove body (41-1), one end of which is fixed to one end of the moving block (45-1), and the other end of which extends to the outside of the mouth pipe member (11) and is fixed with a push block (45-5), and a spring (45-6) is fixed between the outer surface of the moving block (45-1) and the inner wall of the groove body (41-1).

9. The orifice tube according to claim 1, wherein: A positioning member (46) is installed between the inner cover (21) and the outer cover (22), comprising a docking column (46-1) fixed on the outer cover (22); a docking groove (46-2) is provided on the outer surface of the inner cover (21), and the docking groove (46-2) cooperates with the docking column (46-1); a mounting groove (46-3) is provided in the inner cover (21); a card plate (46-4) slides in the mounting groove (46-3); a second spring piece (46-5) is fixed between the surface of the card plate (46-4) and the inner wall of the mounting groove (46-3); a button (46-6) is fixed to one end of the card plate (46-4); and a ring groove (46-7) is provided on the surface of one end of the docking column (46-1), and the ring groove (46-7) cooperates with the card plate (46-4).

10. The orifice tube according to claim 1, wherein: The inner cover (21) is provided with a fixing member (47), comprising a movable groove (47-1) provided in the inner cover (21), a fixing groove (47-2) provided on the outer surface of the port pipe member (11), a driving block (47-3), a transmission block (47-4) and a fixing block (47-5) slidingly arranged in the movable groove (47-1), the transmission block (47-4) respectively cooperating with the driving block (47-3) and the fixing block (47-5), the driving block (47-3) cooperating with the outer cover (22), the fixing block (47-5) cooperating with the fixing groove (47-2), and the fixing block (47-5) cooperating with the fixing groove (47-2). The inner wall of the movable groove (47-1) is respectively provided with a square groove 1 (47-6) and a square groove 2 (47-9); the driving block (47-3) is fixed with a square block 1 (47-7) and slides in the square groove 2 (47-9); a spring piece 3 (47-8) is fixed between the surface of the square block 1 (47-7) and the inner wall of the square groove 2 (47-9); the fixed block (47-5) is fixed with a square block 2 (47-10) and slides in the square groove 2 (47-9); a spring piece 4 (47-11) is fixed between the surface of the square block 2 (47-10) and the inner wall of the square groove 2 (47-9).

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