Small-capacity injection preparation tank

Abstract

The utility model provides a small-capacity injection preparation tank, and aims to solve the technical problems that the sealing effect of the conventional small-capacity injection preparation tank is not good, and the risk of nitrogen leakage is caused. The liquid preparation tank comprises a tank body; a stirring mechanism and a nitrogen conveying assembly for filling nitrogen into the tank body are arranged on the tank body; the nitrogen conveying assembly comprises a first conveying pipe; the second conveying pipe is in butt joint with one end of the first conveying pipe; the sealing structure comprises a sealing ring which is arranged at the joint of the first conveying pipe and the second conveying pipe; reinforcing sealing pieces are movably arranged at the upper end and the lower end of the sealing ring correspondingly. The pressing piece is arranged on the outer side of the reinforced sealing piece; and the locking piece is arranged on the outer side of the pressing piece, and the pressing piece can extrude the reinforcing sealing piece under the action of the locking piece. According to the utility model, the sealing effect is enhanced, and the possibility that nitrogen leaks in the two nitrogen conveying pipes can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid preparation tanks, in particular to a small-capacity injection liquid preparation tank. Background Art

[0002] During the production and planning of small-volume injections (non-terminally sterilized), the product quality has extremely high requirements on oxygen content, and it is necessary to reduce the amount of dissolved oxygen in the liquid during the liquid preparation stage. Most of the existing small-volume injection preparation tanks do not have a nitrogen filling function. A few preparation tanks have a nitrogen filling function, but their nitrogen filling function is not mature enough. During use, nitrogen leakage is prone to occur at the connection between the two nitrogen delivery pipes. For example, the Chinese utility model patent with announcement number CN210186983U discloses a nitrogen-filled bortezomib preparation tank for injection, which includes a first nitrogen delivery pipe and a second nitrogen delivery pipe. The first nitrogen delivery pipe and the second nitrogen delivery pipe are connected by a quick connector. The quick connector includes a sealing ring and a clamp. In this solution, the interface of the two delivery pipes is sealed only by a sealing ring, and its sealing effect is not very good. There is a risk of nitrogen leakage at the connection between the two nitrogen delivery pipes. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a small-volume injection liquid preparation tank, which solves the technical problem that the existing small-volume injection liquid preparation tank has a poor sealing effect and a risk of nitrogen leakage.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A small-volume injection dispensing tank comprises: a tank body; a stirring mechanism and a nitrogen delivery assembly for filling the tank body with nitrogen are arranged on the tank body; the nitrogen delivery assembly comprises: a first delivery pipe; a second delivery pipe connected to one end of the first delivery pipe; a sealing structure comprising: a sealing ring arranged at the connection between the first delivery pipe and the second delivery pipe; reinforced sealing parts are movably arranged at the upper and lower ends of the sealing ring; a pressing part is arranged on the outside of the reinforced sealing part; a locking part is arranged on the outside of the pressing part, and the pressing part can squeeze the reinforced sealing part under the action of the locking part.

[0006] The utility model provides a sealing ring, and movably provides sealing reinforcement members at the upper and lower ends of the sealing ring, so that the sealing reinforcement members can be closely fitted on the pipe wall of the conveying pipe and the two ends of the sealing ring, that is, the sealing ring performs preliminary sealing, and the sealing reinforcement members perform secondary sealing and blocking on the two ends where the sealing ring and the pipe wall are fitted, thereby enhancing the sealing effect and effectively preventing the possibility of nitrogen leakage in the two nitrogen conveying pipes.

[0007] Optionally, the reinforced seal comprises: a sealing ring movably arranged at one end of the sealing ring, and an inner wall of the sealing ring contacts with a pipe wall of the conveying pipe.

[0008] Optionally, the reinforced seal also includes: a pressure plate, arranged on the outside of the sealing ring; and a plurality of groups of telescopic springs are arranged between the pressure plate and the sealing ring.

[0009] Optionally, grooves are respectively formed at the upper and lower ends of the sealing ring, the reinforced sealing member is movably disposed in the grooves, and a step is formed on one side of the grooves.

[0010] Optionally, the sealing ring and / or the pressure plate are slidably connected to the groove.

[0011] Optionally, the clamping member includes: an upper pressure ring, arranged at the upper end of the sealing ring; and a lower pressure ring, arranged at the lower end of the sealing ring; wherein the upper pressure ring and the lower pressure ring are pressed against the corresponding reinforced sealing member under the action of the locking member.

[0012] Optionally, the upper pressure ring and the lower pressure ring are arranged on the step of the sealing ring, and the pressure ring part is located in the groove of the sealing ring.

[0013] Optionally, the upper pressure ring and the lower pressure ring are arranged through a connecting ring, and the middle position of the inner side of the connecting ring abuts against the outer side of the sealing ring. The upper pressure ring is arranged on the inner wall of the connecting ring at the upper end of the sealing ring, and the lower pressure ring is arranged on the inner wall of the connecting ring at the lower end of the sealing ring. The inner walls of the upper pressure ring and the lower pressure ring respectively abut against two groups of reinforced seals, and the locking piece is arranged on the outer wall of the connecting ring.

[0014] Optionally, the connecting ring is detachable.

[0015] Optionally, the sealing structure further comprises a pressure rod, which is movably arranged at one end of the sealing ring away from the sealing ring, and the pressure rod is arranged opposite to the sealing ring, and the pressure rod can move away from or close to the sealing ring.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model provides a sealing ring, and movably provides sealing reinforcement members at the upper and lower ends of the sealing ring, so that the sealing reinforcement members can be closely fitted on the pipe wall of the conveying pipe and the two ends of the sealing ring, that is, the sealing ring performs preliminary sealing, and the sealing reinforcement members perform secondary sealing and blocking on the two ends where the sealing ring and the pipe wall are fitted, thereby enhancing the sealing effect and effectively preventing the possibility of nitrogen leakage in the two nitrogen conveying pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 for Figure 1 A magnified view of the structure in the middle.

[0021] Figure 3 It is a schematic structural diagram of an embodiment of the sealing structure in the utility model.

[0022] Figure 4 The figure is a schematic structural diagram of an embodiment of the connecting ring in the utility model.

[0023] 2. The stirring mechanism includes the following: 1. a tank body; 2. a stirring mechanism; 21. a driving motor; 22. a stirring rod; 23. a supporting rod; 24. a stirring blade; 3. a first conveying pipe; 31. a first connecting part; 4. a second conveying pipe; 41. a second connecting part; 5. a sealing structure; 51. a sealing ring; 511. a groove; 512. a step; 52. a reinforcing sealing member; 521. a sealing ring; 522. a pressure plate; 523. a telescopic spring; 53. a pressing member; 531. an upper pressure ring; 532. a lower pressure ring; 533. a connecting ring; 5331. a first connecting body; 5332. a second connecting body; 54. a locking member; 55. a pressure rod. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] In the description of the embodiments of the present utility model application, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "end", "side", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the embodiments of the present utility model application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model application can be understood according to the specific circumstances.

[0028] In the embodiments of the utility model application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the utility model application. In order to simplify the disclosure of the embodiments of the utility model application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the utility model application. In addition, the embodiments of the utility model application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0030] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0031] like Figure 1~Figure 4 As shown, the embodiment of the utility model application provides a small-capacity injection liquid preparation tank, including a tank body 1, a stirring mechanism 2 arranged on the tank body 1, and a nitrogen delivery component.

[0032] The stirring mechanism 2 is used to stir and mix the liquid in the tank body 1. The nitrogen delivery component is used to fill the tank body 1 with nitrogen.

[0033] Specifically,

[0034] The nitrogen delivery assembly includes: a first delivery pipe 3 , a second delivery pipe 4 connected to the first delivery pipe 3 , and a sealing structure 5 for sealing the connection between the first delivery pipe 3 and the second delivery pipe 4 .

[0035] The tank body 1 adopts the existing technology, and a pipe opening is opened on the basis of the existing tank body 1. The first delivery pipe 3 is welded at the pipe opening. The lower end of the first delivery pipe 3 extends to the upper part of the inner bottom wall of the tank body 1, and the upper end extends upward to connect with the second delivery pipe 4. The tank body 1 is provided with a liquid inlet pipe, a liquid outlet pipe, an air outlet, etc., and a control valve is installed on the liquid inlet pipe and the liquid outlet pipe.

[0036] The sealing structure 5 includes a sealing ring 51 , a reinforcing sealing member 52 , a pressing member 53 and a locking member 54 .

[0037] The sealing ring 51 is arranged at the connection between the first delivery pipe 3 and the second delivery pipe 4, and the inner wall of the sealing ring 51 is in close contact with the outer wall of the first delivery pipe 3 and the second delivery pipe 4. The upper and lower ends of the sealing ring 51 are respectively provided with reinforced seals 52, and the outer side of the reinforced seals 52 is provided with a pressing member 53, and the pressing member 53 can squeeze the two reinforced seals 52. The locking member 54 is arranged on the outer side of the pressing member 53, and the pressing member 53 can squeeze the reinforced seals 52 under the action of the locking member 54, that is, when the locking member 54 is locked, the pressing member 53 and the reinforced seals 52 are squeezed and connected, and a certain pressure is generated on the reinforced seals 52, so that the reinforced seals 52 are squeezed and connected with the delivery pipe, and the inner wall of the reinforced seals 52 is closely attached to the pipe wall.

[0038] Optionally, the reinforced sealing member 52 includes a sealing ring 521 movably disposed at one end of the sealing ring 51 , and the inner wall of the sealing ring 521 is in contact with the wall of the conveying pipe.

[0039] In one embodiment, the reinforcing seal 52 further includes a pressure plate 522 disposed outside the sealing ring 521 , and a plurality of groups of telescopic springs 523 are disposed between the pressure plate 522 and the sealing ring 521 .

[0040] Optionally, grooves 511 are respectively formed at the upper and lower ends of the sealing ring 51 , and the reinforcing sealing member 52 is movably disposed in the groove 511 . A step 512 is formed on the sealing ring 51 on one side of the groove 511 .

[0041] Optionally, the sealing ring 521 and / or the pressing plate 522 are slidably connected to the groove 511, so that the reinforcing seal 52 and the sealing ring 51 can be formed into a complete set. The sliding setting method can be to open multiple sliding grooves on the groove, and the bottom of the sealing ring 521 and / or the pressing plate 522 is slidably connected to the sliding grooves through a slider. When setting, when the sealing ring 521 slides to the innermost side of the sealing ring 51, it needs to partially protrude from the inner wall of the sealing ring 51.

[0042] Optionally, the sealing ring 51 and the sealing ring 521 are both made of elastic material, such as rubber.

[0043] Optionally, the upper pressing ring 531 and the lower pressing ring 532 may also be made of elastic material.

[0044] In one embodiment, the pressing member 53 includes an upper pressing ring 531 and a lower pressing ring 532 respectively disposed at the upper and lower ends of the sealing ring 51 . The upper pressing ring 531 and the lower pressing ring 532 are pressed against the corresponding reinforcing sealing member 52 under the action of the locking member 54 .

[0045] Optionally, the upper pressing ring 531 and the lower pressing ring 532 are respectively arranged on the corresponding steps of the sealing ring 51, and the inner side of the pressing ring protrudes from the step 512, that is, the pressing ring part is located in the groove 511. When the locking member 54 is locked, the pressing ring is squeezed and connected with the reinforcing sealing member 52.

[0046] In one embodiment, reference Figure 2-Figure 4 As shown, the upper pressure ring 531 and the lower pressure ring 532 are arranged through the connecting ring 533, and the middle position of the inner side of the connecting ring 533 abuts against the outer side of the sealing ring 51. The upper pressure ring 531 is arranged on the inner wall of the connecting ring 533 at the upper end of the sealing ring 51, and the lower pressure ring 532 is arranged on the inner wall of the connecting ring 533 at the lower end of the sealing ring 51. The inner walls of the upper pressure ring 531 and the lower pressure ring 532 respectively abut against the pressure plates 522 of the two groups of reinforced seals 52, and the locking piece 54 is arranged on the outer wall of the connecting ring 533.

[0047] In one embodiment, the connecting ring 533 is detachable. Figure 3 and Figure 4 As shown, the connecting ring 533 includes a first connecting body 5331 and a second connecting body 5332, the two ends of the first connecting body 5331 and the second connecting body 5332 are snap-connected, and the inner upper and lower ends of the first connecting body 5331 and the second connecting body 5332 are respectively connected with a pressure ring. When the two ends of the first connecting body 5331 and the second connecting body 5332 are snap-connected, the pressure rings at the upper and lower ends of the first connecting body 5331 and the pressure rings at the upper and lower ends of the second connecting body 5332 are butted to form an upper pressure ring 531 and a lower pressure ring 532. When the first connecting body 5331 and the second connecting body 5332 are snap-connected, due to the protruding arrangement of the pressure ring, the pressure ring can generate pressure on the pressure plate 522, so that the pressure plate 522 moves in the direction of the telescopic spring 523 and applies pressure to the telescopic spring 523, so that the telescopic spring 523 pushes the sealing ring 521 to move in the direction of the conveying pipe, and its inner wall is tightly attached to the pipe wall.

[0048] In one embodiment, the locking member 54 is a clamp.

[0049] In one embodiment, the sealing structure further includes a pressure rod 55, which is movably arranged at one end of the sealing ring 521 away from the sealing ring 51, and the pressure rod 55 is arranged opposite to the sealing ring 521, and the pressure rod 55 can move away from or close to the sealing ring 521, that is, the pressure rod 55 can be pressed against the sealing ring 521, so that the bottom end of the sealing ring 521 can be tightly pressed against the sealing ring 51, and the pressure rod 55 vertically squeezes the sealing ring 521, further improving the sealing effect of the two ends of the sealing ring 51 that are in contact with the pipe wall. Optionally, the pressure rod 55 is arranged on the conveying pipe through a connecting rod, one end of the connecting rod is connected to the outer wall of the conveying pipe, and the pressure rod 55 is threadedly connected to the connecting rod.

[0050] In one embodiment, the first delivery pipe 3 has a first connection portion 31 , the second delivery pipe 4 has a second connection portion 41 , the first connection portion 31 and the second connection portion 41 are connected to each other, and the sealing structure 5 is disposed outside the connection portions.

[0051] In one embodiment, the stirring mechanism 2 includes a driving motor 21 and a stirring rod 22 connected to the driving motor 21, one end of the stirring rod 22 is connected to the power output end of the driving motor 21, and the other end passes through the top of the tank body 1 and extends into the tank body 1. The stirring rod 22 is provided with a plurality of supporting rods 23, and the supporting rods 23 are symmetrically arranged on both sides of the stirring rod 22 in pairs, and each supporting rod 23 is provided with stirring blades 24 at both ends, and the stirring blades 24 are arranged vertically. The vertically arranged stirring rod 22 and stirring blades 24, as well as the horizontally arranged plurality of supporting rods 23, make the mixing of the liquid medicine and the preparation liquid more sufficient and uniform.

[0052] In one embodiment, a sterilizing filter is installed at the terminal of the liquid mixing tank.

[0053] When in use, the connection between the first delivery pipe 3 and the second delivery pipe 4 is firstly sealed by the sealing ring 51, and then sealing rings 521 that can fit tightly with the pipe wall are arranged at the upper and lower ends of the sealing ring 51. The bottom of the sealing ring 521 abuts against one end of the sealing ring 51, and the two ends of the sealing ring 51 that fit with the pipe wall are blocked, which further enhances the sealing effect and can effectively prevent the possibility of nitrogen leakage in the two nitrogen delivery pipes.

[0054] Parts not described in detail in this embodiment are well-known techniques in the art.

[0055] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A small-volume injection preparation tank, characterized in that: include: Tank (1); The tank body (1) is provided with a stirring mechanism (2) and a nitrogen delivery assembly for filling the interior of the tank body (1) with nitrogen; The nitrogen delivery assembly comprises: A first delivery pipe (3); A second delivery pipe (4) butt-jointed with one end of the first delivery pipe (3); The sealing structure (5) comprises: A sealing ring (51) is arranged at the connection between the first delivery pipe (3) and the second delivery pipe (4); The upper and lower ends of the sealing ring (51) are movably provided with reinforcing sealing members (52); A pressing member (53) is arranged outside the reinforced sealing member (52); A locking member (54) is arranged outside the pressing member (53), and the pressing member (53) can press the reinforcing sealing member (52) under the action of the locking member (54).

2. The liquid dispensing tank according to claim 1, characterized in that: The reinforced seal (52) comprises: The sealing ring (521) is movably arranged at one end of the sealing ring (51), and the inner wall of the sealing ring (51) is in contact with the wall of the conveying pipe.

3. The liquid dispensing tank according to claim 2, characterized in that: The reinforced seal (52) further comprises: A pressure plate (522) is arranged outside the sealing ring (521); A plurality of groups of telescopic springs (523) are arranged between the pressure plate (522) and the sealing ring (521).

4. The liquid dispensing tank according to claim 2 or 3, characterized in that: The sealing ring (51) is provided with grooves (511) at the upper and lower ends respectively, the reinforcing sealing component (52) is movably arranged in the groove (511), and a step (512) is formed on one side of the groove (511).

5. The liquid dispensing tank according to claim 4, characterized in that: The sealing ring (521) and / or the pressing plate (522) are slidably connected to the groove (511).

6. The liquid dispensing tank according to claim 1, characterized in that: The pressing member (53) comprises: An upper pressure ring (531) is arranged on the upper end of the sealing ring (51); A lower pressure ring (532) is arranged at the lower end of the sealing ring (51); Wherein, the upper pressure ring (531) and the lower pressure ring (532) are pressed against the corresponding reinforcing sealing member (52) under the action of the locking member (54).

7. The liquid dispensing tank according to claim 6, characterized in that: The upper pressure ring (531) and the lower pressure ring (532) are arranged on the step (512) of the sealing ring (51), and the pressure ring parts are located in the groove (511) of the sealing ring (51).

8. The liquid dispensing tank according to claim 6 or 7, characterized in that: The upper pressure ring (531) and the lower pressure ring (532) are arranged through a connecting ring (533); the middle position of the inner side of the connecting ring (533) abuts against the outer side of the sealing ring (51); the upper pressure ring (531) is arranged on the inner wall of the connecting ring (533) at the upper end of the sealing ring (51); the lower pressure ring (532) is arranged on the inner wall of the connecting ring (533) at the lower end of the sealing ring (51); the inner walls of the upper pressure ring (531) and the lower pressure ring (532) abut against two groups of reinforcing seals (52) respectively; and the locking member (54) is arranged on the outer wall of the connecting ring (533).

9. The liquid dispensing tank according to claim 8, characterized in that: The connecting ring (533) is detachably arranged.

10. The liquid dispensing tank according to claim 1, characterized in that: The sealing structure (5) further comprises a pressure rod (55), wherein the pressure rod (55) is movably arranged at one end of the sealing ring (521) away from the sealing ring (51), the pressure rod (55) and the sealing ring (521) are arranged opposite to each other, and the pressure rod (55) can move away from or towards the sealing ring (521).

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