Liquid medicine adding device
阅读说明:本技术 液体加药装置 (Liquid medicine adding device ) 是由 卡尔-海因茨·福克斯 于 2019-01-16 设计创作,主要内容包括:本发明涉及一种用于从进液口(2)给液体加药的装置,其中进液口(2)包括出口阀(1),并且提供一种加药系统,该加药系统包括第一驱动叶片(4)和第二驱动叶片(5),该第一驱动叶片(4)和第二驱动叶片(5)围绕进液口(2)设置,并且可以压缩方式相互移动以压缩进液口(2),其中设置机械加药挡块。(The present invention relates to a device for dosing a liquid from a liquid inlet (2), wherein the liquid inlet (2) comprises an outlet valve (1), and a dosing system is provided comprising a first driving blade (4) and a second driving blade (5), which first driving blade (4) and second driving blade (5) are arranged around the liquid inlet (2) and are mutually movable in a compressible manner for compressing the liquid inlet (2), wherein a mechanical dosing stop is provided.)
1. A device for dosing a liquid from a liquid inlet (2), wherein the liquid inlet (2) comprises an outlet valve (1),
it is characterized in that the preparation method is characterized in that,
a dosing system is provided, wherein the dosing system comprises a first driving blade (4) and a second driving blade (5), the first driving blade (4) and the second driving blade (5) being arranged around the liquid inlet (2) and being mutually movable in a compressive manner for compressing the liquid inlet (2), wherein a mechanical dosing stop is provided, wherein a profile pre-stressed slotted sleeve (13) surrounds the liquid inlet (2).
2. A device for dosing a liquid from a liquid inlet (2), wherein the liquid inlet (2) comprises an outlet valve (1),
it is characterized in that the preparation method is characterized in that,
a dosing system is provided, wherein the dosing system comprises a first drive blade (4) and a second drive blade (5), which first drive blade (4) and second drive blade (5) are arranged around the liquid inlet (2) and are mutually movable in a compressible manner for compressing the liquid inlet (2), wherein the first drive blade (4) has a first pressure piston (28), the second drive blade (5) has a second pressure piston (32), an output chamber (27) is arranged to be pressable by the pressure pistons (28, 32) movably mounted together, and both pressure pistons (28, 32) are resettable by a spring element (34) and/or a partial spring (39, 39.1).
3. Device according to claim 1 or 2, characterized in that the first driving blade (4) and the second driving blade (5) are connected via a film hinge (3) and are pivotable with respect to each other.
4. Device according to one of the preceding claims, characterized in that the first driver blade (4) and the second driver blade (5) have an inner wall (6), the first driver blade (4) having a first finger support (7) and the second driver blade (5) having a second finger support (8).
5. Device according to one of the preceding claims, characterized in that the first driving blade (4) comprises a first connecting rod (9) and/or a second connecting rod (10) and the second driving blade (5) comprises a first connecting rod (9) and/or a second connecting rod (10).
6. Device according to claim 5, characterized in that the first connecting rod (9) has a guide pin (11) and the second connecting rod (10) has an elongated hole (12).
7. Device according to one of the preceding claims, characterized by a protective cap (17) with a bag (18).
8. Device according to one of the preceding claims, characterized in that the slotted sleeve (13) is provided at its upper end with two finger-driven flanges (14).
9. The device according to the claim, characterised in that the groove (20) of the liquid inlet (2) surrounds the driving blade (4, 5) in a profile-prestressed manner.
10. Device according to one of the preceding claims, characterized in that the drive blades (4, 5) which are movably connected via the film hinge (3) are fixed and movably held together via the connecting rods (9, 10) by the guide pin (11), the guide pin (11) being arranged in the elongated hole (12) of the second connecting rod (10).
11. Device according to one of the preceding claims, characterized in that a conical round pin (21) is provided, which conical round pin (21) is located on the inner wall (6) of the drive blade (4, 5), wherein the ventilation hole (22) in the wall of the intake port (2) is closed by the finger-like support (7, 8) when driven by the finger-like drive flange (14) and the finger-like support (7, 8), and is released again in the starting position for ventilation.
Technical Field
The present invention relates to a liquid dosing device according to the preamble of
Background
Such eye drop dosing devices are known and used in many different forms and designs. For example, in WO 2017/162805 a1, a medicated device is disclosed in which an air valve is embedded in the outer wall of the bottle and a bag of liquid is provided within the bottle.
Disclosure of Invention
Object of the Invention
The object of the present invention is to overcome the drawbacks of the prior art. In particular, a device will be provided which enables a proper dosing while preventing the sprayed liquid from forming a jet at start-up.
Solution scheme
This object is achieved according to the features of
Advantageous configurations are described in the dependent claims.
The liquid dosing device according to the present invention is for dispensing a liquid from a liquid inlet. The loading opening is here a plastic bottle which can be squeezed together. The liquid inlet comprises an outlet valve. The outlet valve is designed so that liquid can be expelled without allowing air to enter the liquid inlet through the outlet valve.
To this end, a dosing system is provided comprising a first and a second drive blade or a slotted sleeve arranged around the inlet port, and the inlet ports are movable relative to each other in a compressive manner, thereby providing a mechanical dosing stop. The mechanical dosing block is arranged such that the two drive blades can only move relative to each other within a limited range, or in the case of a slotted sleeve, the two parts can move relative to each other in a limited manner.
The first driver blade has a first finger support on the finger drive flange and the second driver blade has a finger support on the finger drive flange. These finger supports serve to better use the medicated system and to reduce the driving force by lengthening the driving path through the driving blade.
Further, the first drive blade includes a first connecting rod and the second drive blade includes a second connecting rod. In a preferred embodiment, two first connecting rods and two second connecting rods may be provided, which then enclose the liquid inlet. The driving blade of the slotted sleeve can also be designed without a connecting rod.
The first connecting rod is provided with a guide pin, and the second connecting rod is provided with an elongated hole. This is a mechanical dosing stop, since the guide pin is guided in a defined manner in the elongated hole, which is a mechanical stop when the end of the elongated hole is reached. Furthermore, mechanical stops may also be provided on the blades or half-shells.
The system is always operated by compressed air.
If the air valve or valve closure is working properly, a certain amount of air should remain between the bag and the bottle wall at all times. This means that the starting stroke is substantially always the same. This means that variations in the amount of air associated with bag emptying are not taken into account.
In order to produce a constant drop volume without forming a jet, it is sufficient that the drive path is stopped, i.e. a stroke limit of one drop size.
By means of a drive vane, i.e. one of the drive half-shells, which is fastened to the bottle in the form of a liquid inlet and has a drive path limiter, a constant drop volume can be generated when the drive half-shell is driven, the drive force is reduced and jet formation is prevented.
Further, the first drive blade includes a first connecting rod and the second drive blade includes a second connecting rod. In a preferred embodiment, two first connecting rods and two second connecting rods may be provided, which then enclose the liquid inlet.
The first connecting rod is provided with a guide pin, and the second connecting rod is provided with an elongated hole. This is a mechanical dosing stop, since the guide pin is guided in a defined manner in the elongated hole, which is a mechanical stop when the end of the elongated hole is reached.
The system is always operated by compressed air.
In order to produce a constant drop volume without forming a jet, it is sufficient that the drive path is stopped, i.e. a stroke limit of one drop size.
For manufacturing reasons, the stop cannot be integrated into the bottle interior.
By means of a drive vane, i.e. one of the drive half-shells, which is fastened to the bottle in the form of a liquid inlet and has a drive path limiter, a constant drop volume can be generated when the drive half-shell is driven, the drive force is reduced and jet formation is prevented.
To prevent accidental activation of the system, the protective cover has two pockets in which the finger drive flanges engage when the protective cover is in place, thereby preventing activation when the protective cover is in place. The field may also be combined with child-resistant closures.
The drive vanes or slotted sleeves may be profile pre-stressed for the inlet ports, or may be snap-fit or a combination of both, with the finger drive regions on the flanges being untwisted and with drive clearance for the inlet ports to achieve the drive path.
As an additional disassembly safety measure, the inlet port has a small recess in which the drive vane engages with the inlet port when the drive vane is installed.
In order to allow the driving blade to enter the driving path, both blades or half-shells are connected opposite the driving region by a film hinge or hinge geometry.
To replace the separate air valve in the inlet, a conical round pin is provided on the inner wall of the driving blade, which enters the vent hole of the inlet wall when the blade is driven and closes the system by tapering, preventing air leakage, so that the trapped air can be compressed between the inner bag and the inlet wall, and thus, by driving the driving blade, the medium can escape through the outlet valve.
The system design produces a reduced-part drip system with low driving force in a simple structure without an air inlet port, and the system is an airless system.
In another exemplary embodiment of the device for dosing liquid from a liquid inlet according to the present invention, the liquid inlet is assigned an outlet valve. Furthermore, the present invention provides a dosing system which in turn consists of a first drive vane and a second drive vane which are arranged around the inlet opening and can be moved relative to each other for compressing the inlet opening, wherein the first drive vane has a first pressure piston and the second drive vane has a second pressure piston, wherein the outlet chamber can be acted on by the pressure pistons which are mounted movably relative to each other, and wherein the two pressure pistons are arranged so as to be resettable by means of a spring element and/or a partial spring. In this case, a particularly good and simple dosage is possible.
Drawings
Further advantages, features and details of the invention emerge from the following description of a preferred embodiment and the accompanying drawings; these are shown in:
FIG. 1 shows a device with a protective cap according to the invention;
figure 2 device according to the invention without protective cap;
FIG. 3 is a device having a finger drive flange according to the present invention;
FIG. 4 is a device having a slotted sleeve according to the present invention;
FIG. 5 is a device according to the invention with a connecting rod;
FIG. 6 is a device of the medicated system according to the present disclosure;
FIG. 7 is a device according to the present invention having a connecting rod and a drive stop;
FIG. 8 is a device according to the present invention having a slotted sleeve without a drive flange;
FIG. 9 is a device with a connecting rod according to the invention;
fig. 10 shows the device according to the invention without the connecting rod.
Detailed Description
In fig. 1, a diagram and a partial sectional view of a device according to the invention are shown. The
To prevent the system from being activated, the protective cover 17 is provided with two side pockets 18 for receiving the
Fig. 2 shows the device according to the invention without the protective cap 17. A profiled pre-stressed slotted
Fig. 3 shows a device according to the invention with a finger-shaped
Fig. 4 shows a slotted
Fig. 5 shows the device according to the invention without the protective cover 17 as a snap-on design. The
Fig. 6 shows the non-detachable system in a deployed state. Two
Fig. 7 shows the device according to the invention without the protective cover 17 as a snap-on version. The driving
Fig. 8 shows the device according to the invention without the protective cover 17. In this embodiment, shown as a pre-stressed slotted
Fig. 9 shows the device according to the invention as a snap-on design in plan view with two connecting
Fig. 10 shows in plan view a device according to the invention as a profile-prestressed version with two finger-
FIG. 11 illustrates a cross-sectional side view of a portion of another exemplary embodiment. There, two
The
Furthermore, the
The connecting
In addition, the connecting head 30.1 is in turn received in a joint receiver 33.1, wherein the joint receiver 33.1 is designed as part of the
Furthermore, a
Subsequently, an underpressure is created in the
Fig. 12 shows another exemplary embodiment, in which the explanations concerning the features in the previous figures are also intended to be readable on this figure. This applies in particular to features having the same reference numerals. This is not repeated in detail.
In contrast to fig. 11, two
Fig. 13 shows another exemplary embodiment, in which the explanations relating to the features in the previous figures are also intended to be readable on this figure. This applies in particular to features having the same reference numerals. This is not repeated in detail.
In addition, a first fixing pin 40.1 is shown. In the operating position, the first fixing pin 40.1 projects in the direction of the
While only the preferred embodiment of the invention has been described and illustrated, it should be apparent that numerous modifications could be added by those skilled in the art without departing from the spirit and scope of the invention. In particular, the skilled person can, within his skill, combine different combinations of features of different figures with each other. Each combination is not named here.
REFERENCE LIST
1
2
3
4
5
Second driving blade
6
7
First finger-shaped
8
Second finger-shaped supporting
9
10
11
12
13
Slotted
14
Finger-shaped
15
Hub stop block
16
Half-shell
17
Protective cap
18
Bag (CN)
19
20
Groove
21
Conical round pin
22
23
24
25
Valve clamp
26
Opening of the
27
28
29
30
Connecting
31
32
33
34
35
36
37
38
90
39
Partial spring
40
Fixing pin
41
Base seat
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