Novel straw head

Abstract

The utility model relates to a novel suction tube head, which relates to the technical field of suction tubes, comprises a hollow flexible tube body, and is characterized in that an occlusion part is formed at one end of the flexible tube body, a control valve is arranged in the flexible tube body, the control valve is positioned at one end adjacent to the occlusion part, and a sealed circulation seam is arranged on the control valve; an occlusion stopping part is arranged at the position of the occlusion part, the flexible pipe body is extruded in the occlusion direction, the occlusion part deforms firstly, and after the occlusion part is attached to the occlusion stopping part, a liquid channel is reserved in the flexible pipe body to be in a circulation state. The utility model has the advantage of convenience in use.

Description

Technical Field

[0001] The utility model relates to the technical field of straws, in particular to a novel straw head. Background Art

[0002] In daily life, people use straws to suck liquid from a cup. When using existing straight-through straws, for example, when a user pops open the lid of a thermos cup, the water temperature inside the cup is higher than the outside, which sometimes creates a pressure difference inside the cup that is greater than the outside pressure. The pop-opening speed is generally fast, and the hot water in the cup will splash out from the straight-through straw, posing a risk of scalding the user's face.

[0003] Existing anti-splash straws generally have a sealing wall on the inner wall of the straw, with a butt joint on the sealing wall. The butt joint is sealed in a normal state, and when the straw is bitten, both ends of the butt joint are offset to form an opening, so that the two ends of the straw form a passage, and the liquid in the container can be sucked. However, for this anti-splash straw, when the user uses it, if the biting force is light, the butt joint cannot be opened and the liquid cannot be sucked. When the biting force is heavy, the inner wall of the straw is easily bitten tightly, and the straw is divided into two unconnected sections. Similarly, no water can be sucked, and it is difficult to control, which brings inconvenience to drinking. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a novel pipette tip which has the advantage of being easy to use.

[0005] The above-mentioned purpose of the utility model is achieved through the following technical solutions:

[0006] A novel pipette head comprises a flexible pipette body with a hollow interior, a bite portion is formed at one end of the flexible pipe body, a control valve is arranged in the flexible pipe body, the control valve is located at one end adjacent to the bite portion, and a sealing flow slot is opened on the control valve;

[0007] The bite portion is provided with a bite-stop portion, and the flexible tube body is squeezed along the bite direction, and the bite portion is deformed first. After the bite portion and the bite-stop portion are attached, a liquid channel is left inside the flexible tube body to be in a flow state.

[0008] The utility model is further configured as follows: the bite preventing portion comprises a bite wall arranged outside the flexible tube body.

[0009] The utility model is further configured as follows: a bite cavity is provided in the bite wall, and the bite cavity is located on a side of the bite wall facing the flexible tube body.

[0010] The utility model is further configured as follows: the bite preventing portion comprises an inner blocking block arranged inside the flexible tube body.

[0011] The utility model is further configured as follows: the bite preventing portion comprises a bite groove formed on the bite portion.

[0012] The utility model is further configured as follows: the bite prevention portion includes an inner protrusion arranged on the inner wall of the flexible tube body, and a stopping groove is opened in the flexible tube body. In the bite state, the inner protrusion is inserted into the stopping groove, and in the radial direction of the flexible tube body, the height of the inner protrusion is greater than the height of the stopping groove.

[0013] The utility model is further configured as follows: the bite prevention portion includes an inner flow groove.

[0014] The utility model is further configured as follows: the control valve comprises an elastic control plate, the elastic control plate is tilted, one end of the elastic control plate is connected to the inner wall of the flexible tube body, and one end of the elastic control plate away from the inner wall of the flexible tube body is butted and sealed with each other.

[0015] The utility model is further configured as follows: the control valve comprises an elastic panel, the outer wall of the elastic panel is connected to the inner wall of the flexible tube body, and one end of the elastic panel away from the inner wall of the flexible tube body is butted and sealed with each other.

[0016] The utility model is further configured as follows: the sealing flow seam is arranged in a single line.

[0017] The utility model is further configured as follows: the sealing flow seams are arranged in a staggered manner.

[0018] In summary, the beneficial technical effects of the utility model are:

[0019] 1. It allows the user to bite open the water channel to absorb water, while the inner wall of the straw will not be tightly sealed due to excessive biting, resulting in failure to absorb water. On the basis of achieving the anti-spray and anti-splash function, it greatly improves the convenience of drinking;

[0020] 2. Blocking structures are arranged on the inner and outer walls of the flexible pipe body to increase the contact surface and facilitate blocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a cross-sectional view of the pipette tip in Example 1 of the present application;

[0022] Figure 2 is a cross-sectional view of the pipette head in the first embodiment of the present application from another perspective;

[0023] Figure 3 It is a cross-sectional view of the pipette head in the state where the control valve is an elastic panel in the first embodiment of the present application;

[0024] Figure 4 is a cross-sectional view of the occlusal portion in the first embodiment of the present application;

[0025] Figure 5 is a cross-sectional view of the pipette tip in the second embodiment of the present application;

[0026] Figure 6 is a cross-sectional view of the pipette tip in Example 3 of the present application;

[0027] Figure 7 is a cross-sectional view of the pipette head in the third embodiment of the present application from another perspective;

[0028] Figure 8 is a cross-sectional view of the pipette tip in the fourth embodiment of the present application;

[0029] Fig. 9 is a cross-sectional view of the pipette tip in Embodiment 5 of the present application;

[0030] Fig.10 is a cross-sectional view of the pipette tip in Example 6 of the present application;

[0031] Fig.11 is a cross-sectional view of the pipette tip in Embodiment 7 of the present application;

[0032] Fig.12 It is a cross-sectional view of the pipette tip in the eighth embodiment of the present application.

[0033] In the figure, 1, flexible tube body; 2, bite part; 3, control valve; 31, elastic control plate; 32, elastic panel; 4, sealing flow gap; 5, bite blocking part; 6, bite wall; 7, bite cavity; 8, inner blocking block; 9, bite groove; 10, inner protrusion; 11, stop groove; 12, inner flow groove. DETAILED DESCRIPTION

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0035] Those skilled in the art can easily understand other advantages and effects of the utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] Embodiment 1:

[0037] Reference Figure 1 and Figure 4, is a new type of straw tip disclosed by the utility model, comprising a flexible tube body 1, the flexible tube body 1 is hollow inside, a control valve 3 is arranged inside the flexible tube body 1, and a sealing flow slit 4 is opened on the control valve 3. One end of the flexible tube body 1 is a bite portion 2. When using the straw tip, the user bites the bite portion 2. In this embodiment, the length direction of the sealing flow slit 4 is arranged along the bite direction. Under the bite force of the user, the control valve 3 inside the flexible tube body 1 is deformed, so that the gap of the sealing flow slit 4 is increased, so that the liquid can flow through the sealing flow slit 4 to the end bitten by the user, and the liquid is drunk.

[0038] Reference Figure 1 and Figure 3 The control valve 3 includes two types: a bending type and an elastic panel type. Both control valves 3 can prevent the hot water in the cup from splashing out from the straw mouth. In this embodiment, the elastic control panel 31 on the bending control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The other end is fixedly connected to the inner wall of the flexible tube body 1. The butt-jointed elastic control panels 31 are tilted, and the tilting direction is toward the end away from the bite portion 2. In this embodiment, the elastic panel type control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The elastic panel 32 has the same shape as the inner cavity of the flexible tube body, and the outer wall of the elastic panel 32 is fixedly connected to the inner wall of the flexible tube body 1.

[0039] Reference Figure 1 and Figure 2 The number of the sealing flow slits 4 can be one or two, which can be "one" or staggered. When only one sealing flow slit 4 is provided on the control valve 3, the length direction of the sealing flow slit 4 is provided along the bite direction; when two sealing flow slits 4 are provided on the control valve 3, the two sealing flow slits 4 are staggered, and the length direction of one of the sealing flow slits 4 is provided along the bite direction. In this embodiment, only one sealing flow slit 4 is provided.

[0040] Reference Figure 1 and Figure 4 Two bite walls 6 are integrally formed on the outer wall of the flexible tube body 1. The two bite walls 6 are respectively located on both sides of the sealed flow slot 4. The length of the bite wall 6 in the radial direction of the flexible tube body 1 is less than the diameter of the flexible tube body 1. When the user bites, the bite portion 2 deforms before the bite blocking portion 5, and then bites and squeezes the two bite walls 6 on both sides. The two bite walls 6 constitute the bite blocking portion 5 of this embodiment. After the user bites the bite portion 2 until it is deformed, it will contact the bite blocking portion 5. The bite blocking portion 5 plays a blocking role, so that the drinker maintains a stable bite state. At this time, the inner cavity of the flexible tube body will not be completely fitted and closed, and a liquid channel will be left in a connected state.

[0041] In actual use, the straw head disclosed in the present application can be integrally formed to connect bases of various structures and set at various angles. The straw head and the straw base can be installed forward from the plug hole of the container plug and the container assembly end, and can also be set to be reversely installed into the straw base from the plug hole at the other end of the container plug.

[0042] The implementation principle of this embodiment is: connect the straw head to the base and insert it into the drinking container. Because of the function of the control valve 3, when the drinking container is opened, the liquid will not splash out. When drinking water is needed, the user bites the bite part 2, and the bite part 2 is squeezed and deformed along the bite direction. The deformation of the flexible tube body 1 drives the sealing flow slit 4 on the control valve 3 to open. After biting and contacting the bite wall 6, it is difficult for the user to bite, thereby achieving a stable bite state. At this time, the inner cavity of the flexible tube body will not be completely fitted and closed, and the empty channel will be connected, so that the liquid flows through the opened sealing flow slit 4 and flows out through the empty channel. This application allows the user to bite to open the water channel to absorb water, and the inner wall of the straw will not be tightly sealed due to excessive biting, resulting in the inability to absorb water. On the basis of achieving the anti-spray and anti-splash function, the convenience of drinking is greatly improved.

[0043] Embodiment 2:

[0044] Reference Figure 5 , is a new type of straw head disclosed by the utility model, which is based on embodiment 1, and the difference from embodiment 1 is that an inner blocking block 8 is integrally formed on the inner wall of the flexible tube body 1. In this embodiment, the inner blocking block 8 is arranged along the bite direction, and the contact surface is increased by cooperating with the inner blocking block 8 to facilitate blocking.

[0045] Embodiment three:

[0046] Reference Figure 6 and Figure 7 , is a new type of straw tip disclosed by the utility model, which is based on embodiment 1, and the difference from embodiment 1 is that the bite prevention portion 5 also includes a bite cavity 7 arranged inside the bite wall 6. In this embodiment, the bite cavity 7 is located on the side of the bite wall 6 facing the outer wall of the flexible tube body 1. When biting, the reserved bite cavity 7 is convenient for the user to bite.

[0047] Embodiment 4:

[0048] Reference Figure 8 , is a new type of straw head disclosed by the utility model, which is based on the third embodiment, and the difference from the third embodiment is that an inner blocking block 8 is integrally formed on the inner wall of the flexible tube body 1. In this embodiment, the inner blocking block 8 is arranged along the bite direction, and the contact surface is increased by cooperating with the inner blocking block 8 to facilitate blocking.

[0049] Embodiment five:

[0050] Reference Figure 1 and Fig. 9 , is a new type of straw tip disclosed by the utility model, comprising a flexible tube body 1, the flexible tube body 1 is hollow inside, a control valve 3 is arranged inside the flexible tube body 1, and a sealing flow slit 4 is opened on the control valve 3. One end of the flexible tube body 1 is a bite portion 2. When using the straw tip, the user bites the bite portion 2. In this embodiment, the length direction of the sealing flow slit 4 is arranged along the bite direction. Under the bite force of the user, the control valve 3 inside the flexible tube body 1 is deformed, so that the gap of the sealing flow slit 4 is increased, so that the liquid can flow through the sealing flow slit 4 to the end bitten by the user, and the liquid is drunk.

[0051] Reference Figure 1 and Figure 3 The control valve 3 includes two types: a bending type and an elastic panel type. Both control valves 3 can prevent the hot water in the cup from splashing out from the straw mouth. In this embodiment, the elastic control panel 31 on the bending control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The other end is fixedly connected to the inner wall of the flexible tube body 1. The butt-jointed elastic control panels 31 are tilted, and the tilting direction is toward the end away from the bite portion 2. In this embodiment, the elastic panel type control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The elastic panel 32 has the same shape as the inner cavity of the flexible tube body, and the outer wall of the elastic panel 32 is fixedly connected to the inner wall of the flexible tube body 1.

[0052] Reference Figure 1 and Fig. 9 The number of the sealing flow slits 4 can be one or two, which can be "one" or staggered. When only one sealing flow slit 4 is provided on the control valve 3, the length direction of the sealing flow slit 4 is provided along the bite direction; when two sealing flow slits 4 are provided on the control valve 3, the two sealing flow slits 4 are staggered, and the length direction of one of the sealing flow slits 4 is provided along the bite direction. In this embodiment, only one sealing flow slit 4 is provided.

[0053] Reference Figure 1 and Fig. 9 An inner blocking block 8 is integrally formed on the inner wall of the flexible tube body 1. In this embodiment, the inner blocking block 8 is arranged along the bite direction. The inner blocking block 8 constitutes the bite blocking portion 5 of this embodiment. After the user bites and deforms the bite portion 2, it will contact the bite blocking portion 5. The bite blocking portion 5 plays a blocking role, so that the drinker maintains a stable bite state. At this time, the inner cavity of the flexible tube body will not be completely fitted and closed, and a liquid channel will be left in a connected state.

[0054] In actual use, the straw head disclosed in the present application can be integrally formed to connect bases of various structures and set at various angles. The straw head and the straw base can be installed forward from the plug hole of the container plug and the container assembly end, and can also be set to be reversely installed into the straw base from the plug hole at the other end of the container plug.

[0055] Embodiment six:

[0056] Reference Figure 1 and Fig.10 , is a new type of straw tip disclosed by the utility model, comprising a flexible tube body 1, the flexible tube body 1 is hollow inside, a control valve 3 is arranged inside the flexible tube body 1, and a sealing flow slit 4 is opened on the control valve 3. One end of the flexible tube body 1 is a bite portion 2. When using the straw tip, the user bites the bite portion 2. In this embodiment, the length direction of the sealing flow slit 4 is arranged along the bite direction. Under the bite force of the user, the control valve 3 inside the flexible tube body 1 is deformed, so that the gap of the sealing flow slit 4 is increased, so that the liquid can flow through the sealing flow slit 4 to the end bitten by the user, and the liquid is drunk.

[0057] Reference Figure 1 and Figure 3 The control valve 3 includes two types: a bending type and an elastic panel type. Both control valves 3 can prevent the hot water in the cup from splashing out from the straw mouth. In this embodiment, the elastic control panel 31 on the bending control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The other end is fixedly connected to the inner wall of the flexible tube body 1. The butt-jointed elastic control panels 31 are tilted, and the tilting direction is toward the end away from the bite portion 2. In this embodiment, the elastic panel type control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The elastic panel 32 has the same shape as the inner cavity of the flexible tube body, and the outer wall of the elastic panel 32 is fixedly connected to the inner wall of the flexible tube body 1.

[0058] Reference Figure 1 and Fig.10 The number of the sealing flow slits 4 can be one or two, which can be "one" or staggered. When only one sealing flow slit 4 is provided on the control valve 3, the length direction of the sealing flow slit 4 is provided along the bite direction; when two sealing flow slits 4 are provided on the control valve 3, the two sealing flow slits 4 are staggered, and the length direction of one of the sealing flow slits 4 is provided along the bite direction. In this embodiment, only one sealing flow slit 4 is provided.

[0059] Reference Figure 1 and Fig.10In this embodiment, a bite groove 9 is provided on the side wall of the flexible tube body 1. The bite groove 9 is located on both sides of the sealed flow seam 4. The length direction of the bite groove 9 is consistent with the length direction of the flexible tube body 1. The bite groove 9 constitutes the bite blocking portion 5 of this embodiment. After the user bites the bite portion 2 until it is deformed, it will contact the bite blocking portion 5. The bite blocking portion 5 plays a blocking role, so that the drinker maintains a stable bite state. At this time, the inner cavity of the flexible tube body will not be completely fitted and closed, and a liquid channel will be left in a connected state.

[0060] In actual use, the straw head disclosed in the present application can be integrally formed to connect bases of various structures and set at various angles. The straw head and the straw base can be installed forward from the plug hole of the container plug and the container assembly end, and can also be set to be reversely installed into the straw base from the plug hole at the other end of the container plug.

[0061] Embodiment seven:

[0062] Reference Fig.11 , is a new type of straw tip disclosed by the utility model, comprising a flexible tube body 1, the flexible tube body 1 is hollow inside, a control valve 3 is arranged inside the flexible tube body 1, and a sealing flow slit 4 is opened on the control valve 3. One end of the flexible tube body 1 is a bite portion 2. When using the straw tip, the user bites the bite portion 2. In this embodiment, the length direction of the sealing flow slit 4 is arranged along the bite direction. Under the bite force of the user, the control valve 3 inside the flexible tube body 1 is deformed, so that the gap of the sealing flow slit 4 is increased, so that the liquid can flow through the sealing flow slit 4 to the end bitten by the user, and the liquid is drunk.

[0063] Reference Figure 1 and Figure 3 The control valve 3 includes two types: a bending type and an elastic panel type. Both control valves 3 can prevent the hot water in the cup from splashing out from the straw mouth. In this embodiment, the elastic control panel 31 on the bending control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The other end is fixedly connected to the inner wall of the flexible tube body 1. The butt-jointed elastic control panels 31 are tilted, and the tilting direction is toward the end away from the bite portion 2. In this embodiment, the elastic panel type control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The elastic panel 32 has the same shape as the inner cavity of the flexible tube body, and the outer wall of the elastic panel 32 is fixedly connected to the inner wall of the flexible tube body 1.

[0064] Reference Figure 1 and Fig.11The number of the sealing flow slits 4 can be one or two, which can be "one" or staggered. When only one sealing flow slit 4 is provided on the control valve 3, the length direction of the sealing flow slit 4 is provided along the bite direction; when two sealing flow slits 4 are provided on the control valve 3, the two sealing flow slits 4 are staggered, and the length direction of one of the sealing flow slits 4 is provided along the bite direction. In this embodiment, only one sealing flow slit 4 is provided.

[0065] Reference Figure 1 and Fig.11 , an inner convex block 10 is integrally formed on the inner wall of the flexible tube body 1, and the inner convex block 10 is located inside the deformation part. In this embodiment, the inner convex block 10 is arranged along the biting direction, and a stop groove 11 is provided on the inner wall of the flexible tube body 1 on the side away from the inner convex block 10. In the radial direction of the flexible tube body 1, the height of the inner convex block 10 is greater than the height of the stop groove 11. The inner convex block 10 and the stop groove 11 constitute the biting prevention part 5 of this embodiment. After the user biting and deforming the biting part 2, the inner convex block 10 is inserted into the stop groove 11. Because the height of the inner convex block 10 is greater than the height of the stop groove 11, a gap for liquid discharge will be left. The biting prevention part 5 plays a blocking role, so that the drinker maintains a stable biting state. At this time, the inner cavity of the flexible tube body will not be completely fitted and closed, and a liquid channel will be left in a connected state.

[0066] In actual use, the straw head disclosed in the present application can be integrally formed to connect bases of various structures and set at various angles. The straw head and the straw base can be installed forward from the plug hole of the container plug and the container assembly end, and can also be set to be reversely installed into the straw base from the plug hole at the other end of the container plug.

[0067] Embodiment eight:

[0068] Reference Fig.12 , is a new type of straw tip disclosed by the utility model, comprising a flexible tube body 1, the flexible tube body 1 is hollow inside, a control valve 3 is arranged inside the flexible tube body 1, and a sealing flow slit 4 is opened on the control valve 3. One end of the flexible tube body 1 is a bite portion 2. When using the straw tip, the user bites the bite portion 2. In this embodiment, the length direction of the sealing flow slit 4 is arranged along the bite direction. Under the bite force of the user, the control valve 3 inside the flexible tube body 1 is deformed, so that the gap of the sealing flow slit 4 is increased, so that the liquid can flow through the sealing flow slit 4 to the end bitten by the user, and the liquid is drunk.

[0069] Reference Figure 1 and Figure 3The control valve 3 includes two types: a bending type and an elastic panel type. Both control valves 3 can prevent the hot water in the cup from splashing out from the straw mouth. In this embodiment, the elastic control panel 31 on the bending control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The other end is fixedly connected to the inner wall of the flexible tube body 1. The butt-jointed elastic control panels 31 are tilted, and the tilting direction is toward the end away from the bite portion 2. In this embodiment, the elastic panel type control valve 3 is butt-jointed at one end away from the inner wall of the tube body 1. The elastic panel 32 has the same shape as the inner cavity of the flexible tube body, and the outer wall of the elastic panel 32 is fixedly connected to the inner wall of the flexible tube body 1.

[0070] Reference Figure 1 and Fig.12 The number of the sealing flow slits 4 can be one or two, which can be "one" or staggered. When only one sealing flow slit 4 is provided on the control valve 3, the length direction of the sealing flow slit 4 is provided along the bite direction; when two sealing flow slits 4 are provided on the control valve 3, the two sealing flow slits 4 are staggered, and the length direction of one of the sealing flow slits 4 is provided along the bite direction. In this embodiment, only one sealing flow slit 4 is provided.

[0071] Reference Figure 1 and Fig.12 In this embodiment, an inner flow groove 12 is provided on the side wall of the flexible tube body 1. The inner flow groove 12 is located inside the bite portion 2. The length direction of the inner flow groove 12 is consistent with the length direction of the flexible tube body 1. The inner flow groove 12 constitutes the bite prevention portion 5 of this embodiment. After the user bites and deforms the bite portion 2, it will contact the bite prevention portion 5. The bite prevention portion 5 plays a blocking role, so that the drinker maintains a stable bite state. At this time, the inner cavity of the flexible tube body will not be completely fitted and closed, and a liquid channel will be left in a connected state.

[0072] In actual use, the straw head disclosed in the present application can be integrally formed to connect bases of various structures and set at various angles. The straw head and the straw base can be installed forward from the plug hole of the container plug and the container assembly end, and can also be set to be reversely installed into the straw base from the plug hole at the other end of the container plug.

[0073] The embodiments of this specific implementation are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. It is possible for those skilled in the art to make various obvious changes, readjustments and substitutions without departing from the protection scope of the utility model. Therefore, although the utility model is described in detail through the above embodiments, the utility model is not limited to the above embodiments, but may also include more other equivalent embodiments. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A novel pipette tip, comprising a flexible tube body (1) with a hollow interior, characterized in that: A bite portion (2) is formed at one end of the flexible pipe body (1), a control valve (3) is arranged in the flexible pipe body (1), the control valve (3) is located at one end adjacent to the bite portion (2), and a sealing flow slit (4) is opened on the control valve (3); The biting portion (2) is provided with a biting prevention portion (5), and the flexible tube body (1) is squeezed along the biting direction, so that the biting portion (2) is deformed first, and after the biting portion (2) and the biting prevention portion (5) are attached, a liquid channel is left inside the flexible tube body (1) to be in a flow state.

2. A new pipette tip according to claim 1, characterized in that: The bite preventing portion (5) comprises a bite wall (6) arranged outside the flexible pipe body (1).

3. A new pipette tip according to claim 2, characterized in that: The biting wall (6) is provided with a biting cavity (7), and the biting cavity (7) is located on the side of the biting wall (6) facing the flexible pipe body (1).

4. A new pipette tip according to any one of claims 1 to 3, characterized in that: The bite prevention portion (5) comprises an inner blocking block (8) arranged inside the flexible pipe body (1).

5. The novel pipette tip according to claim 1 is characterized in that: The bite-blocking portion (5) comprises a bite groove (9) formed on the bite portion (2).

6. A new pipette tip according to claim 1, characterized in that: The bite-stopping portion (5) comprises an inner protrusion (10) arranged on the inner wall of the flexible tube body (1), and a stop groove (11) is provided in the flexible tube body (1). In the bite-stopping state, the inner protrusion (10) is inserted into the stop groove (11), and in the radial direction of the flexible tube body (1), the height of the inner protrusion (10) is greater than the height of the stop groove (11).

7. A new pipette tip according to claim 1, characterized in that: The bite-blocking portion (5) comprises an inner flow groove (12).

8. The novel pipette tip according to claim 1, characterized in that: The control valve (3) comprises an elastic control plate (31), the elastic control plate (31) is arranged obliquely, one end of the elastic control plate (31) is connected to the inner wall of the flexible tube body (1), and the end of the elastic control plate (31) away from the inner wall of the flexible tube body (1) is butted and sealed with each other.

9. The novel pipette tip according to claim 1, characterized in that: The control valve (3) comprises an elastic panel (32), the outer wall of the elastic panel (32) is connected to the inner wall of the flexible pipe body (1), and one end of the elastic panel (32) away from the inner wall of the flexible pipe body (1) is butted and sealed with each other.

10. The novel pipette tip according to claim 1, characterized in that: The sealed flow seam (4) is arranged in a single strip.

11. The novel pipette tip according to claim 1, characterized in that: The sealed circulation slots (4) are arranged in a staggered manner.

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