Pressing pump device convenient for quantitative measurement of liquid medicine preparation

Abstract

The pressing pump device comprises a pressing head, an air pump body, a connecting cover, a connecting pipe and a quantitative rotating cover, the pressing head is connected with the air pump body, the output end of the air pump body is connected with the connecting pipe, the connecting pipe extends into a liquid medicine bottle body, the connecting cover is fixedly arranged on the upper portion of the air pump body, and the quantitative rotating cover is arranged on the air pump body. The connecting cover is matched with a bottle opening of the liquid medicine bottle body in a covering manner; the pressing head is connected with a main column, the main column extends into the air pump body in a matched mode, a check ring is arranged on the outer side wall of the middle of the main column, the lower middle portion of the main column is sleeved with a spring body, the lower end of the spring body abuts against the air pump body, and the upper end of the spring body abuts against the bottom face of the check ring. According to the quantitative pressing pump, accurate quantitative pressing output can be achieved, the quantitative pressing pump can be matched with different bottle openings in different sizes, different use requirements are met, the applicability of the pressing pump is improved, meanwhile, mistaken pressing after the pressing pump is used can be prevented, and liquid medicine output pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the design and application field of a liquid medicine pressing pump, and more specifically to a pressing pump device that facilitates the quantitative measurement of liquid medicine preparations. Background Art

[0002] During the use of liquid medicines, it is often necessary to quantitatively measure liquid medicine preparations. Generally, during operation, staff use measuring cups, graduated pipettes or syringes for measurement to ensure the accuracy of each divided dose. It is inconvenient for staff to measure liquid medicine, and the measurement accuracy needs to be further improved.

[0003] Chinese Patent: A pressing type quantitative control device, authorization announcement number: CN208412625U. This patent document discloses the specific structure and usage method of the existing quantitative pressing pump. From the above disclosed patent content, it can be seen that this solution can effectively control the amount of each press by setting a limit platform, making the output liquid medicine amount more accurate and the adjustment more convenient and simple.

[0004] The above existing technologies still have the following disadvantages and deficiencies when in use:

[0005] Disadvantage 1: The size of the connection cover of the existing pressing pump is fixed, while the sizes of the bottle mouths of liquid medicine preparations are different, resulting in the pressing pump being unable to be applicable to different medicine bottle openings, with poor applicability. It is necessary to prepare pressing pumps of matching sizes to draw liquid, and there are certain limitations in use.

[0006] Disadvantage 2: The amount of liquid output by each press of the existing pressing pump is fixed. Operators cannot flexibly adjust the output amount of each press according to actual usage needs. Because different drug dosage requirements are different, there are easily errors in the liquid output amount when the existing pressing pump is in use, affecting the quantitative dispensing of medicine.

[0007] Disadvantage 3: After the existing pressing pump is used, it is easy to accidentally press the pressing head, causing the liquid medicine in the bottle to be output and easily resulting in liquid medicine contamination.

[0008] Based on the structure of the existing quantitative pressing pump, this technical solution further improves the structure of the existing pressing pump, which can not only achieve accurate quantitative pressing output, but also match different bottle mouth sizes, meet the usage requirements, improve the applicability of the pressing pump. At the same time, it can prevent accidental pressing after the pressing pump is used and avoid liquid medicine output contamination. Content of the Utility Model

[0009] The utility model discloses a pressing pump device that facilitates the quantitative measurement of liquid medicine preparations, and its main purpose is to overcome the above-mentioned deficiencies and disadvantages existing in the prior art.

[0010] The technical solution adopted by the present utility model is as follows:

[0011] A pressing pump device for facilitating quantitative measurement of liquid medicine preparations, comprising a pressing head, an air pump body, a connecting cover, a connecting pipe and a quantitative rotating cover. The pressing head is connected to the air pump body, and the output end of the air pump body is connected to the connecting pipe, which extends into the liquid medicine bottle body. The connecting cover is fixedly installed on the upper part of the air pump body, and the connecting cover is cooperatively covered with the bottle mouth of the liquid medicine bottle body. The pressing head is connected with a main column, and the main column is cooperatively inserted into the air pump body. A retaining ring is arranged on the outer side wall of the middle part of the main column, and a spring body is sleeved on the lower middle part of the main column. The lower end of the spring body abuts against the air pump body, and the upper end abuts against the bottom surface of the retaining ring. The quantitative rotating cover is in a ring-shaped cover shape, and the quantitative rotating cover is movably screwed and covered on the upper part of the air pump body, and the lower end of the quantitative rotating cover is movably abutted against the retaining ring.

[0012] Furthermore, several layers of stepped inner wall openings are arranged on the inner side wall of the connecting cover. The inner diameters of the stepped inner wall openings gradually decrease from bottom to top, and interface threads are arranged on the inner side wall of the stepped inner wall openings. The interface threads are cooperatively screwed and connected with the bottle mouth of the liquid medicine bottle body.

[0013] Furthermore, there are three layers of the stepped inner wall openings.

[0014] Furthermore, a pressure limiting block is arranged on the outer side wall of the upper part of the main column, and a notch is opened in the inner ring of the quantitative rotating cover. The pressure limiting block is arranged corresponding to the notch, and the pressure limiting block can be pressed and moved in the up and down directions through the notch.

[0015] Furthermore, a sealing gasket is movably arranged in the connecting cover in a matching manner.

[0016] It can be seen from the above description of the present utility model that compared with the prior art, the advantages of the present utility model are as follows:

[0017] Advantage 1: By setting the air pump body and the quantitative rotating cover, and using the abutment between the retaining ring on the main column and the quantitative rotating cover, the length of the main column extending into the air pump body can be adjusted, so as to control the output volume of each press of the air pump body, achieving the purpose of accurately controlling the liquid output volume.

[0018] Advantage 2: By setting the connecting cover and using the multi-layer stepped inner wall openings thereon, it can be applicable to the use of multiple bottle mouth sizes, meet the use of different liquid medicine bottles, and improve the applicable range of the pressing pump.

[0019] Advantage 3: By providing a pressure-limiting stop block on the main column and opening a notch on the quantitative rotary cap, when in use, when it is necessary to press for infusion, the limit stop block corresponds to the notch, realizing the normal pressing and liquid discharge of the pressing head. When it is not necessary to press for infusion, rotate the pressing head so that when the limit stop block is misaligned with the notch, the pressing head cannot be pressed downward, achieving the purpose of preventing accidental liquid discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural view of the present utility model.

[0021] Figure 2 is a schematic cross-sectional structural view of the present utility model.

[0022] Figure 3 is a schematic top view structural view of the quantitative rotary cap of the present utility model.

[0023] Among them, the pressing head 1, the main column 11, the retaining ring 12, the spring body 13, the pressure-limiting stop block 14, the air pump body 2, the connecting cover 3, the stepped inner wall opening 31, the interface thread 32, the sealing gasket 33, the connecting pipe 4, the quantitative rotary cap 5, and the notch 51. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further describes and illustrates the specific embodiments of the present utility model with reference to the accompanying drawings.

[0025] As Figures 1 to 3 shown, a pressing pump device for facilitating quantitative measurement of liquid medicine preparations includes a pressing head 1, an air pump body 2, a connecting cover 3, a connecting pipe 4, and a quantitative rotary cap 5. The pressing head 1 is connected to the air pump body 2, the output end of the air pump body 2 is connected to the connecting pipe 3, and this connecting pipe 3 extends into the liquid medicine bottle body. The connecting cover 3 is fixedly installed on the upper part of the air pump body 2, and this connecting cover 3 is cooperatively covered with the bottle mouth of the liquid medicine bottle body. The inner side wall of the connecting cover 3 is provided with a three-layer stepped inner wall opening 31, the inner diameter of the stepped inner wall opening 31 gradually decreases from bottom to top, and an interface thread 32 is provided on the inner side wall of the stepped inner wall opening 31. The interface thread 32 is cooperatively screwed with the bottle mouth of the liquid medicine bottle body. By providing the connecting cover 3, by using the multi-layer stepped inner wall opening 31 thereon, it can be applicable to the use of multiple bottle mouth sizes, meet the use of different liquid medicine bottles, and improve the applicable range of the pressing pump. A sealing gasket 33 is movably installed in cooperation in the connecting cover 3, and this sealing gasket 33 can improve the sealing performance and prevent the liquid medicine from flowing out after the liquid medicine bottle body is tilted.

[0026] As Figures 1 to 3As shown in the figure, the pressing head 1 is connected with a main column 11. The main column 11 is fitted and extends into the air pump body 2. A retaining ring 12 is arranged on the outer side wall of the middle part of the main column 11. A spring body 13 is sleeved on the middle and lower part of the main column 11. The lower end of the spring body 13 abuts against the air pump body 2, and the upper end abuts against the bottom surface of the retaining ring 12. The quantitative rotating cover 5 is in the shape of an annular cover. The quantitative rotating cover 5 is movably screwed and covered on the upper part of the air pump body 2. The lower end of the quantitative rotating cover 5 is movably abutted against the retaining ring 12. By rotating the rotating cover 5, the position of the main column 11 can be adjusted, so as to adjust the output liquid volume after the pressing head 1 is pressed, and the adjustment and use of the output volume of the pressing pump are realized.

[0027] As Figures 1 to 3 shown in the figure, a pressure limiting block 14 is arranged on the outer side wall of the upper part of the main column 11. A notch 51 is opened in the inner ring of the quantitative rotating cover 5. The pressure limiting block 14 is arranged corresponding to the notch 51. The pressure limiting block 14 can be pressed and moved up and down through the notch 51. When in use, when it is necessary to press and infuse the liquid medicine, rotate the pressing head 1 to make the limiting block 14 and the notch 51 correspond to each other. The pressing head 1 can be pressed and moved up and down to output the liquid medicine, and the normal pressing and liquid output of the pressing head 1 are realized. When it is not necessary to press and infuse the liquid medicine, rotate the pressing head 1 to make the limiting block 14 and the notch 51 be misaligned. The pressing head 1 cannot be pressed down, and the purpose of preventing accidental pressing and liquid output is realized.

[0028] When in use:

[0029] Screw-on cover of the liquid medicine bottle: Take out the pressing pump device. First, connect the connecting pipe 4 to the output end of the air pump body 2. Then, cut the length of the connecting pipe 4 according to the size of the liquid medicine bottle. Then, insert the connecting pipe 4 into the liquid medicine bottle. The connecting pipe 4 is close to the bottom of the liquid medicine bottle. At this time, screw the connecting cover 3 onto the bottle mouth of the liquid medicine bottle to complete the covering of the liquid medicine bottle.

[0030] Pressing out the liquid: First, adjust the position of the quantitative rotating cover 5 according to the size of the output liquid volume. When a large amount of output liquid volume is needed, adjust the quantitative rotating cover 5 upward. When a small amount of output liquid volume is needed, adjust the quantitative rotating cover 5 upward. After the adjustment is completed, rotate the pressing head 1 to make the limiting block 14 on the main column 11 correspond to the notch 51 of the quantitative rotating cover 5. At this time, the liquid can be pressed out to realize the quantitative output of the liquid medicine.

[0031] Misalignment and anti-accidental pressing: When the infusion is completed, rotate the pressing head 1 to make the limiting block 14 on the main column 11 be misaligned with the notch 51 of the quantitative rotating cover 5. At this time, the limiting block 14 presses against the quantitative rotating cover 5, and the pressing head 1 cannot be pressed downward to discharge the liquid, avoiding accidental pressing and discharging the liquid and preventing the liquid medicine from being contaminated.

[0032] The above are only the specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantive improvement made to the present utility model using this concept should belong to the act of infringing the protection scope of the present utility model.

Claims

1. A pressing pump device for facilitating quantitative measurement of a liquid medicine preparation, characterized in that: It includes a pressing head, an air pump body, a connecting cover, a connecting tube and a quantitative rotating cover, the pressing head is connected to the air pump body, the output end of the air pump body is connected to the connecting tube, the connecting tube extends into the medicine liquid bottle body, the connecting cover is fixedly mounted on the upper part of the air pump body, and the connecting cover is matched with the bottle mouth of the medicine liquid bottle body; the pressing head is connected to a main column, the main column cooperates and extends into the air pump body, a retaining ring is arranged on the outer side wall of the middle part of the main column, a spring body is sleeved on the middle and lower part of the main column, the lower end of the spring body is against the air pump body, and the upper end is against the bottom surface of the retaining ring; the quantitative rotating cover is in the shape of an annular cover, the quantitative rotating cover is movably screwed on the upper part of the air pump body, and the lower end of the quantitative rotating cover is movably against the retaining ring.

2. A pressing pump device for facilitating quantitative measurement of a liquid medicine preparation according to claim 1, characterized in that: The inner side wall of the connecting cover is provided with several layers of stepped inner wall openings, the inner diameter of the stepped inner wall openings gradually decreases from bottom to top, and an interface thread is provided on the inner side wall of the stepped inner wall opening, and the interface thread is spirally connected with the bottle mouth of the medicine bottle body in coordination.

3. A pressing pump device for facilitating quantitative measurement of a liquid medicine preparation according to claim 2, characterized in that: The stepped inner wall opening has three layers.

4. A pressing pump device for facilitating quantitative measurement of a liquid medicine preparation according to claim 1, characterized in that: A pressure-limiting stopper is arranged on the upper outer wall of the main column, a notch is provided on the inner ring of the quantitative rotating cover, the pressure-limiting stopper is arranged corresponding to the notch, and the pressure-limiting stopper can be pressed and moved in the upward and downward directions through the notch.

5. A pressing pump device for facilitating quantitative measurement of a liquid medicine preparation according to claim 1, characterized in that: A sealing gasket is arranged in the connection cover to cooperate with the movable pad.

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