A sterile liquid bag dedicated piercing valve

Abstract

The application discloses a special piercing valve for a sterile liquid bag, which comprises a cap, a valve seat, a piercing valve and the sterile liquid bag. The valve seat is welded on the top of the sterile liquid bag, the piercing valve is slidably connected in the valve seat, the cap comprises an integrated cover and a driving pipe, a sealed space capable of accommodating the valve seat and the piercing valve is formed between the cover and the driving pipe, the cover is rotationally connected to the outer circumferential side of the valve seat, and the driving pipe is rotationally connected to the inner circumferential side of the piercing valve, so that when the cap is counterclockwise rotated, the driving pipe drives the piercing valve to move downward to pierce the sterile liquid bag. Compared with the mode of piercing by a straw, the application is more labor-saving, can prevent secondary pollution caused by liquid leakage in the sterile liquid bag, and ensures transportation safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sterile packaging accessories, in particular to a special piercing valve for sterile liquid bags. BACKGROUND

[0002] The commonly used piercing method for sterile packaging is to directly pierce the bag with a straw and then screw on a cap. Although this piercing method for sterile packaging can rely on the plasticity of the sterile packaging to tightly adhere to the straw, sometimes (such as during transportation or sales process, slightly affected by external force) it can cause the pierced part of the sterile packaging to break and crack, and the cracked part of the sterile packaging can cause liquid to overflow and re-enter the sterile packaging, which can easily cause secondary pollution of the liquid. In addition, when the sterile packaging is subjected to force during transportation, the straw can also pierce the sterile packaging from the inside, causing liquid leakage. SUMMARY

[0003] The purpose of the present application is to provide a special piercing valve for sterile liquid bags, which can prevent secondary pollution caused by liquid leakage in the sterile liquid bags and ensure transportation safety.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0005] A special piercing valve for sterile liquid bags, comprising a cap, a valve seat, a piercing valve and a sterile liquid bag;

[0006] The valve seat is welded to the top of the sterile liquid bag;

[0007] The piercing valve is slidingly connected in the valve seat;

[0008] The cap comprises an integrally formed cover and a driving pipe, a sealed space capable of accommodating the valve seat and the piercing valve is formed between the cover and the driving pipe, the cover is rotationally connected to the outer peripheral side of the valve seat, and the driving pipe is rotationally connected to the inner peripheral side of the piercing valve, so that when the cap is rotated counterclockwise, the driving pipe simultaneously drives the piercing valve to move downward to pierce the sterile liquid bag.

[0009] Further provided is that the inner side wall of the cover is provided with a first internal thread, the upper part of the valve seat is integrally provided with a connecting pipe, and the outer side wall of the connecting pipe is provided with a first external thread matched with the first internal thread.

[0010] Further provided is that the driving pipe is arranged on the side of the cover facing the piercing valve, the outer side wall of the driving pipe is provided with a second external thread, the piercing valve is a hollow pipe and its inner side wall is provided with a second internal thread matched with the second external thread, and the thread rotation directions of the second external thread and the first internal thread are opposite.

[0011] Further settings are that the inner side wall of the connecting pipe is provided with a plurality of sliding grooves, and the outer side wall of the piercing valve is provided with a plurality of guide strips corresponding to the sliding grooves and in sliding connection with the sliding grooves.

[0012] Further settings are that the outer side wall of the piercing valve is provided with a plurality of elastic buckles, the piercing valve is provided with a through groove around the elastic buckles, and the inner side wall of the connecting pipe is provided with a low-limiting block at the bottom thereof; when the cap is rotated to the position, the piercing valve and the cap are out of engagement, the low-limiting block is clamped in the through groove of the elastic buckle, thereby clamping the piercing valve and the cap, and the piercing valve cannot be separated from the valve seat.

[0013] Further settings are that the inner side wall of the connecting pipe is provided with a high-limiting block between any two adjacent sliding grooves, and the elastic buckle abuts above the high-limiting block, so that the piercing valve is kept relatively static and cannot be shaken by external force in the transportation process to pierce the sterile liquid bag.

[0014] Further settings are that the bottom of the piercing valve is conical to form a piercing tip.

[0015] Further settings are that a plurality of through holes are formed in the lower part of the piercing valve.

[0016] Further settings are that the anti-theft ring is further arranged, the anti-theft ring abuts against the top end of the sterile liquid bag, the anti-theft ring and the cap are fixedly connected through a plurality of connecting points, the periphery of the valve seat is provided with a first limiting table, the inner side wall of the anti-theft ring is provided with a second limiting table, the inner diameter of the second limiting table is smaller than the outer diameter of the first limiting table, and the second limiting table abuts against the lower end surface of the first limiting table; the first limiting table plays a limiting role in normal transportation to prevent the cap from loosening or the piercing valve from accidentally piercing the sterile liquid bag; the cap needs to be twisted to break the connecting points of the anti-theft ring and the cap, so that the liquid in the sterile liquid bag can be taken out, thereby playing a theft-proof role.

[0017] Further settings are that a plurality of slits are formed in the anti-theft ring to make the anti-theft ring more flexible, and the second limiting table of the anti-theft ring is more easily pressed into the first limiting table.

[0018] Compared with the prior art, the beneficial technical effects of the present application are:

[0019] The cap is counterclockwise rotated, the sliding groove and the guide strip are matched, the driving pipe drives the piercing valve to move downward, the bottom of the piercing valve pierces the sterile liquid bag, and thus when the liquid in the bag is taken out, compared with the piercing mode of the straw, the secondary pollution caused by the leakage of the liquid in the sterile liquid bag can be prevented.

[0020] The cap and the piercing valve are matched through threads, so that the piercing operation is more labor-saving and convenient compared with the piercing of the straw, and the threaded structure is more stable.

[0021] The elastic buckle abuts against the upper limit block, keeping the puncture valve relatively still and preventing it from being punctured by external forces during transportation, thus ensuring transportation safety.

[0022] The cap needs to be twisted to break the connection between the anti-theft ring and the cap before the liquid in the sterile liquid bag can be opened and accessed. The anti-theft ring serves to prevent theft.

[0023] In summary, this invention is less strenuous than the straw puncture method, and can prevent secondary contamination caused by liquid leakage from the sterile liquid bag, while ensuring transportation safety. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the overall structure of the present invention;

[0026] Figure 2 Top view of the present invention

[0027] Figure 3 For along Figure 2 Sectional view of line AA in the middle;

[0028] Figure 4 A three-dimensional diagram of the cap;

[0029] Figure 5 This is a cross-sectional view of the cap;

[0030] Figure 6 This is a 3D view of the valve seat;

[0031] Figure 7 This is a cross-sectional view of the valve seat;

[0032] Figure 8 A 3D view of the puncture valve;

[0033] Figure 9 This is a cross-sectional view of the puncture valve;

[0034] Figure 10 This is a schematic diagram illustrating the usage state of the present invention.

[0035] 100, cap; 110, cap body; 111, first internal thread; 112, anti-skid pattern; 120, driving pipe; 121, second external thread; 130, anti-theft ring; 131, connecting point; 132, second limiting platform; 133, notch; 200, valve seat; 210, connecting pipe; 211, first external thread; 212, sliding groove; 213, low-position limiting block; 214, high-position limiting block; 220, first limiting platform; 300, piercing valve; 301, second internal thread; 302, guide strip; 303, elastic buckle; 304, through groove; 305, through hole; 400, sterile liquid bag. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. EMBODIMENT

[0039] REFERENCE Figures 1-9The application discloses a special piercing valve for a sterile liquid bag, which comprises a cap 100, a valve seat 200, a piercing valve 300 and a sterile liquid bag 400, the valve seat 200 is welded to the top of the sterile liquid bag 400, and the piercing valve 300 is slidably connected in the valve seat 200. The cap 100 comprises an integrated cover 110 and a driving pipe 120, a sealed space capable of accommodating the valve seat 200 and the piercing valve 300 is formed between the cover 110 and the driving pipe 120, the cover 110 is rotationally connected to the outer circumferential side of the valve seat 200, and the driving pipe 120 is rotationally connected to the inner circumferential side of the piercing valve 300, so that when the cap 100 is counterclockwise rotated, the driving pipe 120 simultaneously drives the piercing valve 300 to move downwards to pierce the sterile liquid bag 400, compared with the piercing mode of a straw, the application is more labor-saving, and secondary pollution caused by liquid leakage in the sterile liquid bag 400 can be prevented.

[0040] With reference to Figures 4-6 The inner side wall of the cover 110 is provided with a first inner thread 111, the upper portion of the valve seat 200 is integrally provided with a connecting pipe 210, the outer side wall of the connecting pipe 210 is provided with a first outer thread 211 matched with the first inner thread 111. The driving pipe 120 is arranged on the side of the cover 110 facing the piercing valve 300, the outer side wall of the driving pipe 120 is provided with a second outer thread 121, the piercing valve 300 is hollow and tubular, and the inner side wall of the piercing valve 300 is provided with a second inner thread 301 matched with the second outer thread 121, and the thread rotation directions of the second outer thread 121 and the first inner thread 111 are opposite. The inner side wall of the connecting pipe 210 is provided with a plurality of sliding grooves 212, preferably, the sliding grooves 212 are annularly and uniformly distributed, and the outer side wall of the piercing valve 300 is provided with a plurality of guide strips 302 corresponding to the sliding grooves 212 and slidably connected with the sliding grooves 212.

[0041] With reference to Figures 7-9 The outer side wall of the piercing valve 300 is provided with a plurality of elastic buckles 303, the piercing valve 300 is provided with a through groove 304 around the elastic buckles 303, the inner side wall of the connecting pipe 210 is provided with a low-position limiting block 213 at the bottom portion, when the cap 100 is rotated to the position, the piercing valve 300 and the cap 100 lose cooperation, the low-position limiting block 213 is clamped in the through groove 304 of the elastic buckle 303, so that the piercing valve 300 and the cap are clamped, and the piercing valve 300 cannot be separated from the valve seat 200. The inner side wall of the connecting pipe 210 is provided with a high-position limiting block 214 between any two adjacent sliding grooves 212, and the elastic buckle 303 abuts against the upper portion of the high-position limiting block 214, so that the piercing valve 300 and the cap are kept relatively static, and the piercing valve 300 cannot be shaken to pierce the sterile liquid bag 400 in the transportation process.

[0042] With reference to Figure 9 The bottom portion of the piercing valve 300 is conical, forming a piercing tip, so that the piercing valve 300 is more labor-saving when piercing the sterile liquid bag 400. A plurality of through holes 305 are formed in the lower portion of the piercing valve 300, and the liquid in the bag can flow out from the through holes 305 after the sterile liquid bag 400 is pierced.

[0043] The working principle and beneficial effects of the embodiment are as follows:

[0044] With reference to Figure 10 When the liquid in the bag needs to be taken out, the cap 100 is rotated counterclockwise, and under the cooperation of the sliding groove 212 and the guide strip 302, the tube 120 drives the piercing valve 300 to move downward at the same time, the bottom of the piercing valve 300 pierces the sterile liquid bag 400, and when the cap 100 is rotated to the position, the piercing valve 300 and the cap 100 lose cooperation, the low-limiting block 213 is clamped in the through slot 304 of the elastic buckle 303, so that the piercing valve 300 and the cap are clamped, and the piercing valve 300 cannot be separated from the valve seat 200. The elastic buckle 303 abuts against the upper side of the high-limiting block 214, so that the piercing valve 300 and the cap remain relatively stationary and cannot be shaken by external force to pierce the sterile liquid bag 400 during transportation, thereby ensuring the safety of transportation. Compared with the piercing mode of the straw, it is more labor-saving, and can prevent secondary pollution caused by leakage of the liquid in the sterile liquid bag 400. Embodiment

[0045] With reference to Figure 5 The difference between the embodiment and embodiment 1 is that the cap 100 is further provided with an anti-theft ring 130, the anti-theft ring 130 and the cap 100 are fixedly connected through a plurality of connecting points 131, and the anti-theft ring 130 abuts against the top end of the sterile liquid bag 400. In combination with Figure 7 , the periphery of the valve seat 200 is provided with an annular first limiting table 220, the inner side wall of the anti-theft ring 130 is provided with an annular second limiting table 132, the inner diameter of the second limiting table 132 is smaller than the outer diameter of the first limiting table 220, and the second limiting table 132 abuts against the lower end face of the first limiting table 220. The first limiting table 220 plays a limiting role during normal transportation, preventing the cap 100 from loosening or the piercing valve 300 from accidentally piercing the sterile liquid bag 400. In order to open and take out the liquid in the sterile liquid bag 400, the connecting points 131 between the anti-theft ring 130 and the cap 100 need to be destroyed, and the anti-theft ring 130 plays a role of preventing theft.

[0046] A plurality of openings 133 are formed in the anti-theft ring 130, so that the anti-theft ring 130 is more flexible, and the second limiting table 132 of the anti-theft ring 130 is more easily pressed into the lower side of the first limiting table 220.

[0047] With reference to Figure 4 The outer side of the cap body 110 can be further provided with anti-skid lines 112 to increase the friction force, so as to facilitate the rotation of the cap 100 and the destruction of the connecting points 131 between the cap 100 and the anti-theft ring 130. Embodiment

[0048] The installation method of the piercing valve 300 for the sterile liquid bag 400 is provided in this embodiment. First, the cap 100 and the piercing valve 300 are rotationally fitted in place. Then, the valve seat 200 is placed below the fitted cap 100 and piercing valve 300. The valve seat 200 and the cap 100 are designed with a press-fit thread. By applying a downward force, the valve seat 200 and the cap 100 are fitted in place. Finally, the sterile package and the lower end of the valve seat 200 are welded together.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacements for some or all of the technical features therein. Such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sterile liquid bag dedicated piercing valve characterized by, The cap (100), the valve seat (200), the piercing valve (300) and the sterile liquid bag (400) are included. The valve seat (200) is welded on the top of the sterile liquid bag (400). The piercing valve (300) is slidingly connected in the valve seat (200). The cap (100) includes an integrated cover (110) and a driving pipe (120), a sealed space capable of accommodating the valve seat (200) and the piercing valve (300) is formed between the cover (110) and the driving pipe (120), the cover (110) is rotationally connected to the outer circumferential side of the valve seat (200), and the driving pipe (120) is rotationally connected to the inner circumferential side of the piercing valve (300), so that when the cap (100) is rotated counterclockwise, the driving pipe (120) simultaneously drives the piercing valve (300) to move downward to pierce the sterile liquid bag (400). A first inner thread (111) is arranged on the inner side wall of the cover (110), and a connecting pipe (210) is integrally arranged on the upper part of the valve seat (200), and a first outer thread (211) matched with the first inner thread (111) is arranged on the outer side wall of the connecting pipe (210). A plurality of elastic buckles (303) are arranged on the outer side wall of the piercing valve (300), a through slot (304) is arranged on the circumferential side of the elastic buckle (303), and a low-limiting block (213) is arranged on the inner side wall of the connecting pipe (210) at the bottom thereof, so that when the cap (100) is rotated to the position, the piercing valve (300) and the cap (100) are disengaged, the low-limiting block (213) is engaged in the through slot (304) of the elastic buckle (303), and the piercing valve (300) and the cap are engaged. A plurality of sliding grooves (212) are arranged on the inner side wall of the connecting pipe (210), a plurality of guide strips (302) corresponding to the sliding grooves (212) are arranged on the outer side wall of the piercing valve (300), a high-limiting block (214) is arranged on the inner side wall of the connecting pipe (210), and the elastic buckle (303) abuts above the high-limiting block (214), so that the piercing valve (300) is kept relatively static and cannot be shaken by external force to pierce the sterile liquid bag (400) during transportation.

2. The puncture valve for a sterile solution bag according to claim 1, wherein The driving pipe (120) is arranged on the side of the cover (110) facing the piercing valve (300), a second outer thread (121) is arranged on the outer side wall of the driving pipe (120), the piercing valve (300) is a hollow pipe, and a second inner thread (301) matched with the second outer thread (121) is arranged on the inner side wall of the piercing valve (300), and the screw rotation directions of the second outer thread (121) and the first inner thread (111) are opposite.

3. The puncture valve for a sterile solution bag according to claim 1, wherein The bottom of the piercing valve (300) is tapered to form a piercing tip.

4. The puncture valve for a sterile solution bag according to claim 1, wherein A plurality of through holes (305) are arranged on the lower part of the piercing valve (300).

5. The puncture valve for a sterile solution bag according to claim 1, wherein The cap (100) is further provided with an anti-theft ring (130) abutting against the top end of the sterile liquid bag (400), the anti-theft ring (130) and the cap (100) are fixedly connected through a plurality of connecting points (131), the valve seat (200) is provided with a first limiting table (220) on the periphery, the inner side wall of the anti-theft ring (130) is provided with a second limiting table (132), the inner diameter of the second limiting table (132) is smaller than the outer diameter of the first limiting table (220), and the second limiting table (132) abuts against the lower end face of the first limiting table (220).

6. The pierce valve for a sterile solution bag according to claim 5, wherein A plurality of openings (133) are formed in the anti-theft ring (130).

Images