CN214716740U

CN214716740U - Quality control liquid bottle

Info

Publication number: CN214716740U
Application number: CN202120913252.9U
Authority: CN
Inventors: 全昌云; 王伟涛; 郑涛; 付亚成; 刘丽霞
Original assignee: Kefu Medical Technology Co ltd
Current assignee: Kefu Medical Technology Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-16
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a quality control liquid bottle, including bottle cap, bottle, bottom knob, coupling assembling, piston assembly. The piston assembly is arranged in the bottle body and connected with the bottom knob, the piston can move upwards by rotating the bottom knob, so that liquid is discharged, and liquid drops can be discharged quantitatively by the aid of scales of the bottom knob. The utility model provides a quality control liquid bottle, its production simple process, easy batch production, and the inside anti-derotation device that is equipped with of bottom knob can prevent effectively that the air from getting into the bottle, prolongs the validity period of product.

Description

Quality control liquid bottle

Technical Field

The utility model relates to a medical treatment packing technical field, concretely relates to quality accuse liquid bottle.

Background

In a blood glucose monitoring system, in order to ensure that the measurement result of the blood glucose monitoring system is accurate, a quality control liquid is generally used to replace blood to verify the accuracy of the blood glucose monitoring system.

The glucose quality control liquid is an aqueous solution consisting of glucose, a preservative, a dye, a viscosity regulator and a buffer solution, and when the glucose quality control liquid is contacted with air containing microorganisms such as bacteria for a long time, the content of the glucose in the quality control liquid is reduced, the quality control liquid loses efficacy, and the accuracy of a blood glucose monitoring system cannot be verified.

Chinese patent CN201610478088.7 discloses an eye drop bottle, which guarantees that gas can not enter the bottle body through the design of double-piston, spring and thread buckle, but it has the liquid in the bottle that can not be drained, causing waste, and when the user is using, if reverse operation may lead to air entering the bottle body, thereby affecting the quality of the liquid medicine. Chinese patent No. cn200780029020.x discloses an eyedrop container which prevents external liquid from entering by filling a high-pressure gas into the bottle and quantitatively discharging a liquid valve, but has the problems of complicated structure, high processing cost, certain potential safety hazard and the like.

Most of quality control liquid bottles, such as quality control liquid bottles used for eye drops and in vitro diagnosis, have the problems of short storage time, poor control of liquid output and the like due to easy air intake, so that a novel quality control liquid bottle is needed to be designed.

SUMMERY OF THE UTILITY MODEL

Not enough to above prior art, the utility model provides a quality control liquid bottle through a series of subassembly structures, has solved current quality control liquid bottle and has easily entered the air, easily became invalid and unable accurate control scheduling problem, and the technical scheme of its adoption is:

a quality control liquid bottle comprises a bottle cap, a bottle body, a bottom knob, a connecting assembly and a piston assembly, wherein the bottom of the bottle body is provided with an opening; a liquid drop indicator is arranged on the periphery of the bottom knob, an anti-back-rotation lower fin and a hook are arranged in the bottom knob, an air hole is formed in one side of the bottom knob and can be communicated with the outside air, a vertical channel is formed in the middle of the bottom knob, and a thread structure is arranged in the bottom knob; the periphery of the connecting component is provided with scale marks, the inner side of the connecting component is provided with an anti-back-rotation upper fin and a supporting plate, the anti-back-rotation upper fin and the anti-back-rotation lower fin are combined, the rotating direction of the bottom knob is ensured to be only anticlockwise, the supporting plate is buckled with the hook, the connecting component is connected with the bottom knob, and when the bottom knob rotates, the hook can move anticlockwise above the supporting plate; the piston assembly is in a T shape, is arranged in the bottle body and seals the bottom of the bottle body, and comprises a screw rod and a piston, wherein the screw rod is inserted into a vertical channel of a bottom knob, and when the bottom knob rotates, the screw rod moves upwards through a thread structure in the vertical channel; the bottle cap is an independent part and is matched with the bottle mouth of the bottle body; the connecting component is connected with the bottle body through water-soluble glue.

Further, the volume of the bottle body is 5-20 mL; the material is one of polyethylene, polyvinyl chloride or acrylonitrile-styrene resin.

Furthermore, the bottle body can be divided into 36 equal parts by the scale marks, and the scale marks are 0-36; the drop indicator of (a) has its origin at the 0 scale position.

As a specific implementation mode, the bottom knob comprises a circular bottom wall and a circumferential side wall protruding upwards from the periphery of the circular bottom wall, the hook extends inwards from the top end of the circumferential side wall, and the anti-back-rotation lower fin extends inwards from the circumferential side wall and is positioned below the hook; the connecting assembly comprises a connecting part connected to the periphery of the bottom of the bottle body and an annular extending part located below the connecting part, the annular extending part extends downwards from the bottom end of the connecting part, the inner diameter of the annular extending part is smaller than that of the connecting part, the supporting plate extends outwards from the outer wall of the annular extending part in a protruding mode, a groove for the hook to correspondingly penetrate through penetrates through the supporting plate, and the anti-back-spin upper fin extends outwards from the outer wall of the annular extending part and is located above the supporting plate.

In a specific embodiment, the anti-reverse-rotation lower fin is provided with a first inclined surface forming an included angle with a tangent line of the circumferential side wall, the anti-reverse-rotation upper fin is provided with a second inclined surface forming an included angle with a tangent line of the outer wall, and a free end of the second inclined surface slightly exceeds a free end of the first inclined surface outwards.

Furthermore, 12 anti-back-rotation lower fins are uniformly distributed on the bottom knob, and the included angle between the first inclined plane and the tangent line of the circumferential side wall is 25-35 degrees; 12 anti-back-rotation upper fins are uniformly distributed on the connecting component, and the second inclined plane of the anti-back-rotation upper fins is parallel to the first inclined plane.

Furthermore, the shape of the upper part of the piston is matched with the shape of the top of the bottle body, and the surface of the side part of the piston is tightly attached to the inner wall of the bottle body; the screw pitch of the screw moving upwards is 0 mm-100 mm.

Preferably, the water-soluble glue is an epoxy resin sealant.

The utility model discloses beneficial effect does: the utility model discloses a matter accuse liquid bottle can quantitative control matter accuse liquid go out the liquid volume, avoids extravagant, uses the subassembly of preventing reversing simultaneously, has realized that the positive direction goes out liquid, and can prevent that user's reverse operation from leading to the air admission bottle, effectively reduces the probability of matter accuse liquid contact air, prolongs the save time of matter accuse liquid.

Drawings

FIG. 1 is a structural view of a quality control liquid bottle according to the present invention;

FIG. 2 is a cross-sectional view of the quality control liquid bottle of the present invention;

fig. 3 is a cross-sectional view of the bottom knob of the present invention;

fig. 4 is a top view of the bottom knob of the present invention;

fig. 5 is a cross-sectional view of the connection assembly of the present invention;

fig. 6 is a top view of the connection assembly of the present invention;

description of reference numerals, 1: a bottle cap; 2: a bottle body; 3: a bottom knob; 4 connecting the components; 5: a piston assembly; 3-1: a drop indicator; 3-2: anti-reverse turning down the fins; 3-3: hooking; 3-4: a vent hole; 3-5: a vertical channel; 3-6: a circular bottom wall; 3-7: a circumferential sidewall; 3-8: a first inclined plane; 4-1: scale marks are arranged on the scale; 4-2: the fins are prevented from being rotated backwards; 4-3: a support plate; 4-4: a connecting portion; 4-5: an annular extension; 4-6: a groove; 4-7: a second inclined plane; 5-1: a screw; 5-2: a piston.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in figure 1, the quality control liquid bottle of the utility model comprises a bottle body 2. The volume of the bottle body 2 is 5-20 mL; the material is one of polyethylene, polyvinyl chloride or acrylonitrile-styrene resin. The upper end of the bottle body 2 is provided with a bottle mouth and is covered with a bottle cap 1. The bottle cap 1 is an independent component and is matched with the bottle mouth, so that air is prevented from contacting the quality control liquid for a long time. The bottom of the bottle body 2 is open. As shown in fig. 3 and 5, the bottom knob 3 is located at the bottom of the quality control liquid bottle, and is fastened with the upper support plate 4-3 of the connecting component 4 through the internal hook 3-3, so that the bottom knob 3 is tightly connected with the connecting component 4.

The periphery of the bottom knob 3 is provided with a liquid drop indicator 3-1, the interior is provided with a reverse rotation prevention lower fin 3-2 and a hook 3-3, one side of the bottom is provided with a vent hole 3-4 which can be communicated with the outside air, the middle part is provided with a vertical channel 3-5, and the interior is provided with a thread structure. The periphery of the connecting component 4 is provided with a scale 4-1, the inner side of the connecting component is provided with an anti-reverse-rotation upper fin 4-2 and a supporting plate 4-3, wherein the anti-reverse-rotation upper fin 4-2 is combined with the anti-reverse-rotation lower fin 3-2, the rotating direction of the bottom knob 3 is ensured to be only anticlockwise, the supporting plate 4-3 is buckled with the hook 3-3, the connecting component 4 is connected with the bottom knob 3, and when the bottom knob rotates, the hook 3-3 can move anticlockwise above the supporting plate 4-3. The piston assembly 5 is in a T shape, is arranged inside the bottle body 2 and seals the bottom of the bottle body 2, and comprises a screw rod 5-1 and a piston 5-2, wherein the screw rod 5-1 is inserted into a vertical channel 3-5 of the bottom knob 3, and when the bottom knob 3 rotates, the screw rod 5-1 moves upwards through a thread structure in the vertical channel; the bottle cap 1 is an independent part and is matched with the bottle mouth of the bottle body 2; the connecting component 4 is connected with the bottle body 2 through water-soluble glue.

Specifically, the bottom knob 3 comprises a circular bottom wall 3-6 and a circumferential side wall 3-7 protruding upwards from the periphery of the circular bottom wall 3-6, the hook 3-3 extends inwards from the top end of the circumferential side wall 3-7, and the anti-back-rotation lower fin 3-2 extends inwards from the circumferential side wall 3-7 and is positioned below the hook 3-3. As shown in fig. 4 and 6, the connecting assembly 4 includes a connecting portion 4-4 connected to the periphery of the bottom of the bottle 2 and an annular extending portion 4-5 located below the connecting portion 4-4, the annular extending portion 4-5 extends downward from the bottom end of the connecting portion 4-4 and has an inner diameter smaller than the inner diameter of the connecting portion 4-4, the supporting plate 4-3 protrudes outward from the outer wall of the annular extending portion 4-5, a groove 4-6 for the hook 3-3 to correspondingly pass through is formed in the supporting plate 4-3 in a penetrating manner, and the anti-back-spin upper fin 4-2 protrudes outward from the outer wall of the annular extending portion 4-5 and is located above the supporting plate 4-3. The anti-reverse-rotation lower fin 3-2 is provided with a first inclined surface 3-8 forming an included angle with the tangent of the circumferential side wall 3-7, the anti-reverse-rotation upper fin 4-2 is provided with a second inclined surface 4-7 forming an included angle with the tangent of the outer wall, and the free end of the second inclined surface 4-7 slightly exceeds the free end of the first inclined surface 3-8 outwards. The structure that the first inclined planes 3-8 and the second inclined planes 4-7 are matched mutually enables the bottom knob 3 to rotate only along a single direction, and the situation that the reverse rotation occurs due to operation errors of a user can be prevented. The anti-back-rotation lower fins 3-2 are uniformly distributed on the bottom knob 3 by 12 pieces, and the included angle between the first inclined plane 3-8 and the tangent line of the circumferential side wall is 25-35 degrees. 12 pieces of anti-back-rotation upper fins 4-2 are uniformly distributed on the connecting component 4, and the second inclined planes 4-7 are parallel to the first inclined planes 3-8. 12 anti-reverse-rotation lower fins 3-2 in the bottom knob 3 are matched with 12 anti-reverse-rotation upper fins 4-2 on the connecting component 4 to form an anti-reverse-rotation device which can only rotate anticlockwise. The scale 4-1 of the connecting component 4 divides the periphery of the bottle body into 36 equal parts, and the scale is 0-36. The drop indicator 3-1 starts at the 0 scale position. The scale position is indicated by the liquid drop indicator 3-1 on the bottom knob 3, the bottom rotates one circle, the liquid drop indicator 3-1 moves 1 unit of scale, and the solution is correspondingly reduced by 1 in 36. The bottom of the rotary bottom 3 is provided with vent holes 3-4, so that the inside of a cavity of the rotary bottom 3 is connected with the outside when the rotary bottom moves upwards, negative pressure is prevented from being generated, and quality control liquid cannot be extruded out. The connecting component 4 is connected with the bottle body 2 through water-soluble glue. Specifically, the connecting part 4-4 is hermetically connected with the bottom of the bottle body 2 through epoxy resin sealant.

As shown in figure 2, a piston assembly 5 is arranged in the bottle body 2 and is connected with a vertical channel 3-5 of the bottom knob 3, when the bottom knob 3 rotates anticlockwise, a screw rod 5-1 and the vertical channel 3-5 move upwards through a thread structure to extrude liquid, wherein the shape of the piston 5-2 is matched with that of the top of the bottle body 2, the quality control liquid is guaranteed to be used up, and waste is avoided. The side surface of the piston 5-2 is closely attached to the inner wall of the bottle body 2, and preferably, a sealing ring is arranged on the periphery of the piston 5-2, so that the sealing performance between the bottle body 2 and the piston 5-2 can be enhanced, and liquid leakage is avoided. The screw pitch of the screw 5-1 moving upwards is 0 mm-100 mm.

The quality control liquid bottling and dropping steps are as follows:

1. and (3) bottling quality control liquid:

the hook on the bottom knob is connected with the support plate on the connecting assembly, and then the screw of the piston assembly is screwed into the vertical channel of the bottom knob. And (3) turning the bottle body upside down, pressing the bottle mouth with fingers, filling the quality control liquid from the bottom, bonding the connecting assembly and the bottle body with glue, releasing the fingers to enable the redundant liquid to drip out of the bottle mouth, righting the bottle body after the assembly is finished, and covering a bottle cap to finish liquid filling and assembly.

2. Dripping:

the bottle cap is opened, the bottom knob is rotated anticlockwise, the bottom knob is rotated slowly, if the volume of the liquid drop is 5mL, the volume of the extruded liquid is about 0.14mL (the liquid drop amount is 5/36) when the liquid drop indicator moves by one scale, and the volume of the extruded quality control liquid can be realized by controlling the liquid drop indicator of the bottom knob according to the actual use condition. After the use, please close the cap in time.

The above description is only an embodiment of the present invention, and is not intended to limit the technical solutions of the present invention, and for those skilled in the art, any modifications, equivalent replacements, improvements, etc. made in the solutions of the present invention should be included in the protection scope of the present invention.

Claims

1. A quality control liquid bottle comprises a bottle cap (1), a bottle body (2), a bottom knob (3), a connecting assembly (4) and a piston assembly (5), wherein the bottom of the bottle body (2) is provided with an opening; a liquid drop indicator (3-1) is arranged on the periphery of the bottom knob (3), an anti-back-rotation lower fin (3-2) and a hook (3-3) are arranged in the bottom knob, an air vent (3-4) is arranged on one side of the bottom and can be communicated with the outside air, a vertical channel (3-5) is arranged in the middle of the bottom knob and is internally provided with a thread structure; the scale scales (4-1) are arranged on the periphery of the connecting component (4), the anti-reverse-rotation upper fin (4-2) and the supporting plate (4-3) are arranged on the inner side of the connecting component (4), the anti-reverse-rotation upper fin (4-2) and the anti-reverse-rotation lower fin (3-2) are combined, the rotating direction of the bottom knob (3) is ensured to be only anticlockwise, the supporting plate (4-3) is buckled with the hook (3-3), the connecting component (4) is connected with the bottom knob (3), and when the bottom knob rotates, the hook (3-3) can move anticlockwise above the supporting plate (4-3); the piston assembly (5) is T-shaped, is arranged in the bottle body (2) and seals the bottom of the bottle body (2), and comprises a screw rod (5-1) and a piston (5-2), wherein the screw rod (5-1) is inserted into a vertical channel (3-5) of the bottom knob (3), and when the bottom knob (3) rotates, the screw rod (5-1) moves upwards through a thread structure in the vertical channel; the bottle cap (1) is an independent part and is matched with the bottle mouth of the bottle body (2); the connecting component (4) is connected with the bottle body (2) through water-soluble glue.

2. The quality control liquid bottle according to claim 1, wherein the volume of the bottle body (2) is 5-20 mL; the material is one of polyethylene, polyvinyl chloride or acrylonitrile-styrene resin.

3. The quality control liquid bottle according to claim 1, wherein the scale (4-1) can divide the bottle body (2) into 36 equal parts, and the scale is 0-36; the starting point of the liquid drop indicator (3-1) is at the position of a scale mark 0.

4. The quality control liquid bottle according to claim 1, wherein the bottom knob (3) comprises a circular bottom wall (3-6) and a circumferential side wall (3-7) protruding upwards from the periphery of the circular bottom wall (3-6), the hook (3-3) extends inwards from the top end of the circumferential side wall (3-7), and the anti-back-rotation lower fin (3-2) extends inwards from the circumferential side wall (3-7) and is positioned below the hook (3-3); the connecting component (4) comprises a connecting part (4-4) connected with the periphery of the bottom of the bottle body (2) and an annular extending part (4-5) positioned below the connecting part (4-4), the annular extension part (4-5) extends downwards from the bottom end of the connecting part (4-4) and has an inner diameter smaller than that of the connecting part (4-4), the supporting plate (4-3) protrudes outwards from the outer wall of the annular extension part (4-5), and the supporting plate (4-3) is provided with a groove (4-6) for the hook (3-3) to correspondingly pass through, the anti-reverse-rotation upper fin (4-2) protrudes outwards from the outer wall of the annular extension part (4-5) and is positioned above the support plate (4-3).

5. The quality control liquid bottle according to claim 4, wherein the anti-back-rotation lower fin (3-2) has a first inclined surface (3-8) forming an angle with the tangent of the circumferential side wall (3-7), the anti-back-rotation upper fin (4-2) has a second inclined surface (4-7) forming an angle with the tangent of the outer wall, and the free end of the second inclined surface (4-7) slightly exceeds the free end of the first inclined surface (3-8) outwards.

6. The quality control liquid bottle according to claim 5, wherein the anti-back-rotation lower fins (3-2) are uniformly distributed on the bottom knob (3) by 12 pieces, and the included angle between the first inclined plane (3-8) and the tangent of the circumferential side wall (3-7) is 25-35 degrees; 12 pieces of the anti-back-rotation upper fins (4-2) are uniformly distributed on the connecting component (4), and the second inclined planes (4-7) are parallel to the first inclined planes (3-8).

7. The quality control liquid bottle according to claim 1, wherein the upper portion of the piston (5-2) is shaped to fit the top of the bottle body (2), and the side surface of the piston is closely attached to the inner wall of the bottle body (2); the pitch of the upward movement of the screw (5-1) is 0 mm-100 mm.

8. The quality control liquid bottle according to claim 1, wherein the water soluble glue is an epoxy resin sealant.