Opening device for vials and infusion bottles

Abstract

The present invention provides a device for opening a syringe bottle and an infusion bottle, comprising a baffle, a transmission shaft, a friction disc and a wheel; the wheel is connected to the transmission shaft by a bearing; the friction disc is rigidly connected to the transmission shaft in the circumferential direction so that the friction disc and the transmission shaft rotate synchronously; the friction disc and the wheel fit each other so that the friction disc applies static friction to the wheel to drive the wheel to rotate; a push plate for applying thrust and / or rubbing force to the bottle cap of the syringe bottle or the infusion bottle is arranged on the wheel; the baffle and the push plate are arranged on the same side of the wheel; the baffle is used to prevent the bottle body of the syringe bottle or the infusion bottle from moving with the movement of the push plate, that is, to apply a thrust opposite to the push plate to the syringe bottle so that the bottle cap is separated from the bottle body. With such an arrangement, when there is a foreign object blocking the rotation of the wheel, the static friction between the friction disc and the wheel is converted into sliding friction, and the friction disc rotates idly, thereby playing a role in safety protection for the device and the operator, and not only the structure is simple and easy to operate, but also it is efficient and safe.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a device for opening a syringe bottle and an infusion bottle. Background Art

[0002] Existing medicinal vials and large infusion bottles are mainly composed of vials / large infusion bottles, rubber plugs and aluminum-plastic combination covers. When medical staff are transfusing for patients, they need to carry out the dispensing operation of these medicines encapsulated by the aluminum-plastic combination covers, so the plastic cover of the aluminum-plastic combination cover will be opened. The traditional way is to first break the plastic cover of the vial apart with fingers to expose the rubber plug part, and then carry out the corresponding subsequent dispensing operation. In the whole opening process, although the aluminum-plastic combination cover is opened more conveniently, clinically, some medical staff need to open a large amount of plastic covers every day, and the labor intensity is very large, and it is time-consuming and laborious, and the work efficiency is low. In addition, such operation for a long time will wear out the fingers of medical staff, and it is easy to cause infection, which is not conducive to the health of medical staff. Summary of the invention

[0003] Based on the above, a device for opening a vial or an infusion bottle is provided which has a simple and efficient structure and can adapt to the specifications of various aluminum-plastic combination covers.

[0004] A device for opening a syringe bottle and an infusion bottle comprises a baffle, a transmission shaft, a friction disc and a wheel coaxially connected to the transmission shaft; the wheel is connected to the transmission shaft by a bearing, that is, the axis of the rotation axis of the wheel coincides with the axis of the rotation axis of the transmission shaft, and the wheel can rotate around the transmission shaft. The friction disc is rigidly connected to the transmission shaft in the circumferential direction so that the friction disc and the transmission shaft rotate synchronously; the friction disc and the wheel fit each other so that the friction disc applies static friction to the wheel, thereby driving the wheel to rotate; a push plate for applying thrust and / or rubbing force to the bottle cap of the syringe bottle or the infusion bottle is arranged on the wheel; the baffle and the push plate are arranged on the same side of the wheel; the baffle is used to prevent the syringe bottle or the infusion bottle from moving with the movement of the push plate, that is, to apply a thrust opposite to the push plate to the syringe bottle, so that the syringe bottle is forced by the push plate and the baffle to separate the plastic bottle cap from the bottle body. The "circumferentially rigid connection" mentioned in the above content refers to a connection in which the rotation angles of the two objects in the rotation direction remain synchronized and no relative rotation occurs.

[0005] In one of the embodiments, a pre-tightening mechanism is further included; the pre-tightening mechanism is used to change the axial pressure between the friction disk and the wheel disk, thereby changing the static friction force between the friction disk and the wheel disk.

[0006] In one embodiment, the preload mechanism includes a spring; the friction disk is slidably connected to the transmission shaft in the axial direction; the first end of the spring is rigidly connected to the transmission shaft in the axial direction to limit the axial movement of the first end of the spring, and the second end of the spring is connected to the friction disk to apply static pressure between the friction disk and the wheel disk through the elastic force of the spring, and to change the size of the static pressure between the friction disk and the wheel disk by changing the size of the elastic force of the spring, thereby changing the size of the static friction between the friction disk and the wheel disk.

[0007] In one embodiment, the pre-tightening mechanism includes a threaded locking portion; the threaded locking portion is threadedly connected to the end of the shaft of the transmission shaft, and the axial position of the threaded locking portion on the transmission shaft can be changed by changing the amount of threaded engagement; the wheel disc and the transmission shaft are slidably connected in the axial direction; the threaded locking portion is used to press against the wheel disc to prevent the wheel disc from slipping off the end of the transmission shaft; the threaded locking portion is also used to change the size of the static pressure between the friction disc and the wheel disc by changing the amount of threaded engagement with the transmission shaft, thereby changing the size of the static friction between the friction disc and the wheel disc.

[0008] In one of the embodiments, a slide rail is axially arranged on the transmission shaft, and a slideway matching the slide rail is axially arranged on the friction disk; or, a slideway is axially arranged on the transmission shaft, and a slide rail matching the slideway is axially arranged on the friction disk; the slide rail can be embedded in the slideway for axial sliding and limit the relative movement of the slideway and the slide rail in the circumferential direction, that is, the friction disk and the transmission shaft are rigidly connected in the circumferential direction and are slidingly connected in the axial direction.

[0009] In one of the embodiments, a first sleeve is provided on the friction disc; the first sleeve is coaxially arranged with the friction disc; a slideway is provided on the inner side of the first sleeve, and a slide rail matching with the slideway is axially arranged on the transmission shaft, or a slide rail is provided on the inner side of the first sleeve, and a slideway matching with the slide rail is axially arranged on the transmission shaft; the slide rail can be embedded in the slideway for axial sliding and limit the relative movement of the slideway and the slide rail in the circumferential direction.

[0010] In one embodiment, it further comprises a second sleeve coaxially arranged with the friction disc; the second sleeve is sleeved on the transmission shaft and fixedly connected with the transmission shaft; a slide rail is axially arranged on the second sleeve, and a slideway matching the slide rail is axially arranged on the friction disc, or a slideway is axially arranged on the sleeve, and a slide rail matching the slideway is axially arranged on the friction disc; the slide rail can be embedded in the slideway for axial sliding and limit the relative movement of the slideway and the slide rail in the circumferential direction; the spring is arranged between the friction disc and the second sleeve. In this embodiment, the static pressure between the friction disc and the wheel disc is applied by the elastic force of the spring, and the size of the static pressure between the friction disc and the wheel disc is changed by changing the size of the elastic force of the spring, thereby changing the size of the static friction between the friction disc and the wheel disc.

[0011] In one embodiment, a stop structure for limiting the position of the spring is provided on one end of the second sleeve away from the friction disk;

[0012] In one embodiment, the retaining structure is a flange provided on an end of the second sleeve away from the friction disk.

[0013] In one of the embodiments, it also includes a latch and a second sleeve coaxially arranged with the friction disk; a first latch hole is axially arranged on a side of the friction disk close to the second sleeve; a second latch hole is axially arranged on an end of the second sleeve close to the friction disk; the first latch hole and the second latch hole are connected by the latch, and at least one of the first latch hole and the second latch hole is slidably connected with the latch.

[0014] In one of the embodiments, it also includes a bearing seat; the bearing seat is fixedly connected to the wheel disc; the axis of the rotating shaft of the bearing seat coincides with the axis of the rotating shaft of the wheel disc; the bearing seat is connected to the transmission shaft bearing, that is, the wheel disc and the transmission shaft are connected through the bearing seat bearing.

[0015] In one embodiment, a braking system is further included; the braking system is used to control the transmission shaft to stop outputting torque after the wheel disc rotates a certain angle; the braking system includes a marking portion arranged on the wheel disc and rotating synchronously with the wheel disc, and a brake sensor arranged on a fixed part; the marking portion is used to calibrate the angle of rotation of the wheel disc and trigger the brake sensor to send a braking signal to stop the outputting torque of the transmission shaft. In this embodiment, the "fixed part" is relative to the "rotating part", which is a relatively stationary part, such as a baffle, a syringe bottle and an infusion bottle opening device housing, etc.

[0016] In one embodiment, the marking portion includes any one of a through hole structure, a notch structure opened on the wheel disc, or a marking signal transmitter arranged on the wheel disc, or a combination of two or more thereof.

[0017] In one of the embodiments, a start sensor is further included; the start sensor is used to detect whether a vial of syringe or an infusion bottle is inserted and reaches the surface of the wheel disc, and sends a start signal to make the transmission shaft output torque.

[0018] In one embodiment, it further comprises a first fixing plate; the baffle is fixedly connected to the first fixing plate; the transmission shaft is rigidly connected to the first fixing plate in the axial direction; a first mounting hole is opened in the middle of the first fixing plate; the transmission shaft passes through the first mounting hole and is connected to the wheel bearing. In this embodiment, the first mounting hole is mainly used to facilitate the installation of the transmission shaft and parts connected to the transmission shaft.

[0019] In one embodiment, it also includes a second fixing plate and a reducer; the second fixing plate is connected to the first fixing plate through a connecting column, or is fixedly connected through the bent edge of the second fixing plate, so that a certain distance is maintained between the second fixing plate and the first fixing plate; a support column is set on one side of the reducer; the support column is fixedly connected to the second fixing plate; the transmission shaft is coaxially connected to the output shaft of the reducer, or the transmission shaft is the output shaft of the reducer; a second mounting hole is set in the middle of the second fixing plate; the transmission shaft passes through the second mounting hole and is connected to the friction disk. In this embodiment, the transmission shaft is coaxially connected to the output shaft of the reducer, that is, the axis of the rotating shaft of the transmission shaft coincides with the axis of the output shaft of the reducer. In addition, it can be clearly known in this embodiment that the first fixing plate is fixedly connected to the support column of the reducer through the second fixing plate, and then rigidly connected to the transmission shaft in the axial direction of the transmission shaft.

[0020] In one of the embodiments, a motor is further included; a motor shaft of the motor is connected to the input shaft of the reducer.

[0021] In one of the embodiments, it also includes a retaining ring and a bolt assembly; a bolt hole is axially arranged at the end of the transmission shaft; the retaining ring is used to support the wheel disc to prevent the wheel disc from slipping off the end of the transmission shaft; the bolt assembly is threadedly connected to the bolt hole to support the retaining ring and apply pressure to the retaining ring so that the retaining ring is tightly attached to the wheel disc; the wheel disc is connected to the retaining ring bearing.

[0022] In one embodiment, the bearing connection includes a sliding bearing connection, a thrust rolling bearing connection, or a combination of the two.

[0023] In one embodiment, the spring includes a pressure spring and / or a tension spring; the pressure spring includes a magnetic spring, that is, a non-contact pressure spring; the tension spring includes a magnetic spring, that is, a non-contact tension spring.

[0024] In one of the embodiments, a bottle mouth insertion hole is formed on the baffle; the position of the bottle mouth insertion hole corresponds to the rotation path of the push plate, so that when the syringe bottle is inserted into the bottle mouth insertion hole, the push plate can contact the bottle cap of the syringe bottle or the infusion bottle.

[0025] In one embodiment, the axial projection of the bottle mouth insertion hole is located within the circular ring formed by the rotation of the push plate.

[0026] In one of the embodiments, a sensor connecting piece is further included; the sensor connecting piece is used to fix the brake sensor on the fixing piece.

[0027] In one of the embodiments, a first axial hole for passing the transmission shaft is provided in the middle of the friction disk.

[0028] In one of the embodiments, a second axial hole for passing the transmission shaft is provided in the middle of the wheel disc.

[0029] In one of the embodiments, a middle portion of the bearing seat is provided with a third axial hole for passing the transmission shaft.

[0030] In one of the embodiments, it also includes a thrust bearing assembly; the thrust bearing assembly includes a first rotating body and a second rotating body capable of relative rotational motion around the same rotation axis; the first rotating body is fixedly connected to the wheel disc, and the second rotating body is fixedly connected to the transmission shaft, or the first rotating body is fixedly connected to the transmission shaft, and the second rotating body is fixedly connected to the wheel disc.

[0031] In one embodiment, the transmission shaft is a stepped shaft.

[0032] In one embodiment, a recycling box is further included, and the recycling box is used to collect the plastic cover peeled off from the aluminum-plastic composite cover.

[0033] The above-mentioned opening device for the syringe bottle and the infusion bottle is provided by frictionally fitting the friction disk and the wheel disc and being coaxially arranged, so that the rotation of the friction disk can drive the wheel disc to rotate and perform external work, and the baffle plate and the push and rub plate arranged on the wheel disc form a shear push and rub structure, and the baffle plate and the push and rub plate apply a thrust in the opposite direction to the inserted syringe bottle or the infusion bottle, so that the plastic bottle cap of the syringe bottle or the infusion bottle is separated from the bottle body. In addition, because the friction disk and the wheel disc adopt friction transmission, when there is a foreign object blocking the rotation of the wheel disc, or the force in the opposite direction of the rotation of the wheel disc is greater than the friction force of the friction disk on the wheel disc, the static friction between the friction disk and the wheel disc is converted into sliding friction, that is, the friction disk is idling, thereby playing a role in safety protection for the device and the operator, which is not only simple in structure and easy to operate, but also efficient and safe. For example, when an operator mistakenly forgets that the plastic bottle cap of a syringe bottle or an infusion bottle has fallen off and inserts it into the device again, the wheel disc may easily get stuck or the friction resistance may be too large due to the obstruction of the aluminum cover and the rubber plug. When the resistance hindering the rotation of the wheel disc is greater than the friction force of the friction disc on the wheel disc, the friction disc idles due to the change from static friction to sliding friction with the wheel disc, thereby providing safety protection for the device and the operator.

[0034] The present application also provides another implementation scheme of the same inventive concept as described above.

[0035] A device for opening a syringe bottle and an infusion bottle comprises a baffle, a transmission shaft, a fixed shaft, a friction disc coaxially connected to the transmission shaft, and a wheel coaxially connected to the fixed shaft; the wheel is connected to the fixed shaft by a bearing, that is, the axis of the rotating shaft of the wheel coincides with the axis of the fixed shaft, and the wheel can rotate around the fixed shaft. The friction disc is rigidly connected to the transmission shaft in the circumferential direction so that the friction disc and the transmission shaft rotate synchronously; the axis of the transmission shaft coincides with the axis of the fixed shaft; the friction disc and the wheel disc fit each other so that the friction disc applies static friction to the wheel disc, thereby driving the wheel disc to rotate; a push plate for applying thrust and / or rubbing force to the bottle cap of the syringe bottle or the infusion bottle is provided on the wheel disc; the baffle plate and the push plate plate are arranged on the same side of the wheel disc; the baffle plate is used to prevent the bottle body of the syringe bottle or the infusion bottle from moving with the movement of the push plate plate, that is, to apply a thrust opposite to the push plate plate to the syringe bottle, so that the syringe bottle, under the joint force of the push plate plate and the baffle plate, causes the plastic bottle cap to detach from the bottle body.

[0036] The "circumferentially rigid connection" mentioned in the above content refers to a connection in which the rotation angles of two objects in the rotation direction remain synchronized and no relative rotation occurs.

[0037] In one of the embodiments, the fixed shaft is fixedly connected to the baffle.

[0038] In one embodiment, the transmission shaft is a stepped shaft.

[0039] In one embodiment, a recycling box is further included, and the recycling box is used to collect the plastic cover peeled off from the aluminum-plastic composite cover.

[0040] The above-mentioned opening device for the syringe bottle and the infusion bottle is provided by frictionally fitting the friction disk and the wheel disc and being coaxially arranged, so that the rotation of the friction disk can drive the wheel disc to rotate and perform external work, and the baffle plate and the push and rub plate arranged on the wheel disc form a shear push and rub structure, and the baffle plate and the push and rub plate apply a thrust in the opposite direction to the inserted syringe bottle or the infusion bottle, so that the plastic bottle cap of the syringe bottle or the infusion bottle is separated from the bottle body. In addition, because the friction disk and the wheel disc adopt friction transmission, when there is a foreign object blocking the rotation of the wheel disc, or the force in the opposite direction of the rotation of the wheel disc is greater than the friction force of the friction disk on the wheel disc, the static friction between the friction disk and the wheel disc is converted into sliding friction, that is, the friction disk is idling, thereby playing a role in safety protection for the device and the operator, which is not only simple in structure and easy to operate, but also efficient and safe.

[0041] According to the above content, the present application also provides another implementation scheme of the same inventive concept as the above content.

[0042] A device for opening a syringe bottle and an infusion bottle, comprising a baffle, a wheel disc, a transmission shaft, a bearing seat, and a friction disc coaxially connected to the transmission shaft; the friction disc is rigidly connected to the transmission shaft in the circumferential direction (the "circumferentially rigid connection" means that the rotation angles of the two objects in the rotation direction are kept synchronous and there is no relative rotation), so that the friction disc and the transmission shaft rotate synchronously; the wheel disc is provided with a push plate for applying a thrust and / or a rubbing force to the bottle cap of the syringe bottle or the infusion bottle, and a friction plate perpendicular to the rotation plane of the wheel disc. The fixed shaft of the invention is as follows: the fixed shaft and the washboard are arranged on the same side of the wheel disc, and the axis of the fixed shaft coincides with the axis of the rotating shaft of the wheel disc; the fixed shaft is connected to the bearing of the bearing seat; the axis of the transmission shaft coincides with the axis of the fixed shaft; the friction disc and the wheel disc are fitted to each other so that the friction disc applies static friction to the wheel disc, thereby driving the wheel disc to rotate; the baffle and the washboard are arranged on the same side of the wheel disc; the baffle is used to prevent the body of the syringe bottle or the infusion bottle from moving with the movement of the washboard. That is, a thrust opposite to that of the washboard is applied to the syringe bottle, so that the syringe bottle, under the joint force of the washboard and the baffle, causes the plastic bottle cap to separate from the bottle body.

[0043] In one of the embodiments, the bearing seat is fixedly connected to the baffle.

[0044] In one embodiment, the transmission shaft is a stepped shaft.

[0045] In one embodiment, a recycling box is further included, and the recycling box is used to collect the plastic cover peeled off from the aluminum-plastic composite cover.

[0046] The above-mentioned opening device for the syringe bottle and the infusion bottle is provided by frictionally fitting the friction disk and the wheel disc and being coaxially arranged, so that the rotation of the friction disk can drive the wheel disc to rotate and perform external work, and the baffle plate and the push and rub plate arranged on the wheel disc form a shear push and rub structure, and the baffle plate and the push and rub plate apply a thrust in the opposite direction to the inserted syringe bottle or the infusion bottle, so that the plastic bottle cap of the syringe bottle or the infusion bottle is separated from the bottle body. In addition, because the friction disk and the wheel disc adopt friction transmission, when there is a foreign object blocking the rotation of the wheel disc, or the force in the opposite direction of the rotation of the wheel disc is greater than the friction force of the friction disk on the wheel disc, the static friction between the friction disk and the wheel disc is converted into sliding friction, that is, the friction disk is idling, thereby playing a role in safety protection for the device and the operator, which is not only simple in structure and easy to operate, but also efficient and safe.

[0047] In the above content, at least in some embodiments, the purpose of the present invention is to overcome or improve at least one disadvantage of the prior art, or to provide a useful alternative. The collection of overview embodiments provided is to predict potential patent claims based on the selection of technical features disclosed in the following "Detailed Description", and these collections of overview embodiments are not intended to limit the scope of the claims that can be expanded in any way. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 A schematic side cross-sectional view of the basic mechanism of a device for opening a vial or infusion bottle using a stepped transmission shaft to fix the position of a friction disk and a wheel disk, provided in one embodiment;

[0049] Figure 2 A schematic side cross-sectional view of the basic mechanism of a device for opening a vial or infusion bottle using a stepped rotating shaft as a spring stop structure provided in an embodiment;

[0050] Figure 3 It is a schematic diagram of the AA cross-sectional structure of the connection section between the sleeve and the transmission shaft when a sleeve is provided on the friction disk of the opening device for a vial or an infusion bottle provided in an embodiment;

[0051] Figure 4 A schematic side cross-sectional structural diagram of a basic mechanism of a device for opening a vial and an infusion bottle, in which a wheel provided in an embodiment is provided with a bearing seat and the bearing seat is connected to a sliding bearing of a transmission shaft;

[0052] Figure 5 A schematic side cross-sectional view of the basic mechanism of a device for opening a vial or infusion bottle using a three-step stepped rotating shaft as a spring stop structure provided in an embodiment;

[0053] Figure 6 A schematic side cross-sectional view of the basic mechanism of a device for opening a vial or infusion bottle using a sleeve fixedly connected to a transmission shaft as a slide rail and a spring stop structure provided in an embodiment;

[0054] Figure 7 A schematic diagram of a side cross-sectional structure of an axial sliding connection mechanism between a friction disk and a sleeve in a device for opening a vial or an infusion bottle provided in an embodiment;

[0055] Figure 8 A schematic diagram of the BB cross-sectional structure of the sliding connection section of the axial sliding connection mechanism between the friction disk and the sleeve in the opening device for a vial or an infusion bottle provided in an embodiment;

[0056] Fig. 9 A schematic side cross-sectional view of the basic mechanism of a device for opening a vial or infusion bottle using a sleeve fixedly connected to a transmission shaft as a slide rail and a spring stop structure provided in an embodiment;

[0057] Fig.10 A schematic side cross-sectional view of the basic mechanism of a device for opening a vial or infusion bottle, wherein an inner and outer ring thrust cylindrical roller bearing is arranged in a bearing seat fixedly connected to a wheel disc, provided in an embodiment;

[0058] Fig.11 A schematic side cross-sectional view of the basic mechanism of a device for opening a vial or infusion bottle, wherein a bearing seat fixedly connected to a wheel disc is provided with left and right clip-type thrust tapered roller bearings, provided in an embodiment;

[0059] Fig.12 A schematic side cross-sectional view of the basic mechanism of a device for opening a vial or infusion bottle, wherein the outer ring of a thrust bearing is fixedly connected to a wheel disc, provided in an embodiment;

[0060] Fig.13 A schematic side cross-sectional structural diagram of a basic mechanism of a device for opening a vial and an infusion bottle, wherein a sleeve fixedly connected to a transmission shaft and a friction disk are connected axially and rigidly circumferentially via a latch;

[0061] Fig.14 A schematic side sectional three-dimensional structural diagram of a basic mechanism of a device for opening a vial and an infusion bottle, wherein a sleeve fixedly connected to a transmission shaft and a friction disk are connected axially and rigidly circumferentially via a latch provided in an embodiment;

[0062] Fig.15 A schematic diagram of a wheel structure provided with a notch structure as a marking portion and a push plate having a long strip structure according to an embodiment;

[0063] Fig.16 A schematic diagram of a wheel structure provided with a notch structure as a marking portion and a push plate provided with an arc structure provided in an embodiment;

[0064] Fig.17 A schematic diagram of a wheel structure provided with a through-hole structure as a marking portion according to an embodiment;

[0065] Fig.18 A schematic diagram of a wheel structure provided with a signal transmitter as a marking part according to an embodiment;

[0066] Fig.19 A schematic diagram of a side cross-sectional three-dimensional structure of a device for opening a vial and an infusion bottle provided in an embodiment after a baffle is installed and the vial is inserted;

[0067] Fig. 20 A schematic diagram of the assembly structure between the fixing parts of a device for opening a vial or an infusion bottle provided in an embodiment;

[0068] Fig.21 A schematic side cross-sectional view of the basic mechanism of a device for opening a vial or infusion bottle provided with two shafts, namely a fixed shaft and a transmission shaft, provided in one embodiment;

[0069] Fig. 22 The wheel provided in one embodiment is provided with a fixed shaft coaxial with the transmission shaft, and the fixed shaft is connected to the bearing seat bearing arranged on the baffle plate. It is a side sectional structural schematic diagram of the basic mechanism of the device for opening a syringe bottle and an infusion bottle.

[0070] Description of reference numerals: 100. transmission shaft; 110. first slide rail; 120. bolt hole; 200. friction disc; 210. first sleeve; 211. slideway; 220. first shaft hole; 230. first latch hole; 300. wheel disc; 310. push plate; 320. marking part; 330. second shaft hole; 400. spring; 500. baffle plate; 510. bottle mouth insertion hole; 600. brake sensor; 700. bearing seat; 710. third shaft hole ;800. Second sleeve;810. Second slide rail;820. Flange;830. Second latch hole;900. Thrust bearing assembly;10. Motor;20. Reducer;21. Support column;30. First fixing plate;31. First mounting hole;40. Second fixing plate;41. Second mounting hole;50. Sensor connector;60. Retaining ring;70. Bolt assembly;80. Latch;90. Start sensor;101. Fixed shaft;102. Bearing seat. DETAILED DESCRIPTION

[0071] In this patent document, the following discussion Figure 1-22 The various embodiments used to describe the principles or methods of the present disclosure are for illustration only and should not be interpreted as limiting the scope of the present disclosure in any way. It should be understood by those skilled in the art that the principles or methods of the present disclosure can be implemented in any appropriately arranged vials or infusion bottles and other packaging bottle opening devices provided with aluminum-plastic combination covers. With reference to the accompanying drawings, preferred embodiments of the present disclosure will be described below. In the following description, detailed descriptions of well-known functions or configurations will be omitted so as not to confuse the subject matter of the present disclosure with unnecessary details. Moreover, the terms used herein will be defined according to the functions of the present invention. Therefore, the terms may differ depending on the intention or usage of the user or operator. Therefore, the terms used herein must be understood based on the descriptions made herein.

[0072] A device for opening a vial and an infusion bottle, such as Figure 1 As shown, it includes a baffle 500, a transmission shaft 100, a friction disc 200 coaxially connected to the transmission shaft 100, and a wheel disc 300. The wheel disc 300 is connected to the transmission shaft 100 by a bearing, that is, the axis of the rotation axis of the wheel disc 300 coincides with the axis of the rotation axis of the transmission shaft 100, and the wheel disc 300 can rotate around the transmission shaft 100. The friction disc 200 is rigidly connected to the transmission shaft 100 in the circumferential direction so that the friction disc 200 and the transmission shaft 100 rotate synchronously. The friction disc 200 and the wheel disc 300 fit each other so that the friction disc 200 applies static friction force to the wheel disc 300, thereby driving the wheel disc 300 to rotate. The wheel disc 300 is provided with a push and wash board 310 for applying thrust and / or rubbing force to the bottle cap of the syringe bottle or the infusion bottle. The baffle 500 and the push and wash board 310 are arranged on the same side of the wheel disc 300. The baffle 500 is used to prevent the body of the syringe bottle or infusion bottle from moving along with the movement of the push plate 310, that is, to apply a thrust to the syringe bottle opposite to the push plate 310, so that the plastic bottle cap of the syringe bottle is separated from the bottle body under the joint force of the push plate 310 and the baffle 500.

[0073] The "circumferentially rigid connection" in the above content refers to a connection in which the rotation angles of the two objects in the rotation direction remain synchronized and no relative rotation occurs.

[0074] In one embodiment, a pre-tightening mechanism is further included, which is used to change the axial pressure between the friction disc 200 and the wheel disc 300 , thereby changing the static friction between the friction disc 200 and the wheel disc 300 .

[0075] In one embodiment, if Figure 2As shown, the preload mechanism includes a spring 400. The friction disc 200 is slidably connected to the transmission shaft 100 in the axial direction. The first end of the spring 400 is rigidly connected to the transmission shaft 100 in the axial direction to limit the first end of the spring 400 from moving in the axial direction, and the second end of the spring 400 is connected to the friction disc 200 to apply static pressure between the friction disc 200 and the wheel disc 300 through the elastic force of the spring 400, and to change the size of the static pressure between the friction disc 200 and the wheel disc 300 by changing the size of the elastic force of the spring 400, thereby changing the size of the static friction between the friction disc 200 and the wheel disc 300.

[0076] In one embodiment, the pre-tightening mechanism includes a threaded locking portion. The threaded locking portion is threadedly connected to the shaft end of the transmission shaft 100, and the axial position of the threaded locking portion on the transmission shaft 100 can be changed by changing the amount of threaded engagement. The wheel disc 300 is slidably connected to the transmission shaft 100 in the axial direction. The threaded locking portion is used to resist the wheel disc 300 to prevent the wheel disc 300 from slipping off the end of the transmission shaft 100. The threaded locking portion is also used to change the size of the static pressure between the friction disc 200 and the wheel disc 300 by changing the amount of threaded engagement with the transmission shaft 100, thereby changing the size of the static friction between the friction disc 200 and the wheel disc 300.

[0077] For example, Figure 1 or Figure 2 As shown, the thread locking portion includes a retaining ring 60 and a bolt assembly 70. A bolt hole 120 is axially arranged at the shaft end of the transmission shaft 100. The retaining ring 60 is used to abut against the wheel disc 300 to prevent the wheel disc 300 from slipping off the end of the transmission shaft 100. The bolt assembly 70 is threadedly connected with the bolt hole 120 to abut against the retaining ring 60 and apply pressure to the retaining ring 60 so that the retaining ring 60 is tightly attached to the wheel disc 300. The wheel disc 300 is connected to the retaining ring 60 in a bearing connection.

[0078] In one embodiment, a slide rail is axially arranged on the transmission shaft 100, and a slideway matching the slide rail is axially arranged on the friction disc 200, or a slideway is axially arranged on the transmission shaft 100, and a slideway matching the slideway is axially arranged on the friction disc 200. The slide rail can be embedded in the slideway for axial sliding and limit the relative movement of the slideway and the slide rail in the circumferential direction, that is, the friction disc 200 and the transmission shaft 100 are rigidly connected in the circumferential direction and slidingly connected in the axial direction.

[0079] In one embodiment, if Figure 2 and Figure 3As shown, a first sleeve 210 is disposed on the friction disc 200. The first sleeve 210 is coaxially disposed with the friction disc 200. A slideway 211 is disposed inside the first sleeve 210, and a first slide rail 110 matching the slideway is axially disposed on the transmission shaft 100. The slide rail can be embedded in the slideway for axial sliding and limit the relative movement of the slideway in the circumferential direction.

[0080] In one embodiment, if Figure 2 and Figure 3 As shown, a first sleeve 210 is disposed on the friction disc 200. The first sleeve 210 is coaxially disposed with the friction disc 200. A slide rail is disposed inside the first sleeve 210, and a slideway matching the slide rail is axially disposed on the transmission shaft 100. The slide rail can be embedded in the slideway for axial sliding and limit the relative movement of the slideway in the circumferential direction.

[0081] In one embodiment, if Figure 2 and Figure 3 As shown, a first sleeve 210 is provided on the friction disc 200. The first sleeve 210 is coaxially arranged with the friction disc 200. A slideway 211 is provided inside the first sleeve 210, and a first slide rail 110 matching the slideway is axially arranged on the transmission shaft 100. The first slide rail 110 can be embedded in the slideway 211 for axial sliding, and limit the relative movement of the slideway 211 and the first slide rail 110 in the circumferential direction. In addition, the transmission shaft 100 is at least a two-step stepped shaft, the first sleeve 210 is sleeved on the stepped connection, and the first slide rail 110 is arranged at the high-order shaft section of the stepped connection and is axially arranged. A spring 400 is arranged between the bottom of the first sleeve 210 and the stepped connection. The spring 400 is in a compressed state after installation, so that the compressed elastic potential energy is applied to the wheel disc 300 through the friction disc 200, as the static pressure necessary for forming static friction between the friction disc 200 and the wheel disc 300.

[0082] In one embodiment, if Figure 4 or Figure 5 As shown, the bearing seat 700 is also included. The bearing seat 700 is fixedly connected to the wheel disc 300. The axis of the rotating shaft of the bearing seat 700 coincides with the axis of the rotating shaft of the wheel disc 300. The bearing seat 700 is connected to the transmission shaft 100 by a bearing, that is, the wheel disc 300 and the transmission shaft 100 are connected by a bearing of the bearing seat 700.

[0083] In one embodiment, if Figure 4 or Figure 5As shown, the bearing seat 700 is connected to the transmission shaft 100 by a sliding bearing. A first axial hole 220 for passing the transmission shaft 100 is provided in the middle of the friction disc 200. A second axial hole 330 for passing the transmission shaft 100 is provided in the middle of the wheel disc 300. The wheel disc 300, the bearing seat 700, and the friction disc 200 are all coaxially arranged with the transmission shaft 100, that is, they overlap axially. In addition, a retaining ring 60 and a bolt assembly 70 are also included. The shaft end of the transmission shaft 100 is axially provided with a bolt hole 120. The retaining ring 60 is used to abut the bearing seat 700 to prevent the bearing seat 700 and the wheel disc 300 fixedly connected thereto from slipping off the end of the transmission shaft 100, and the retaining ring 60 is connected to the bearing seat 700 by a bearing. The bolt assembly 70 is threadedly connected to the bolt hole 120 to abut the retaining ring 60 so that static friction can be formed between the wheel disc 300 and the friction disc 200.

[0084] In one embodiment, if Figure 5 As shown, a first sleeve 210 is provided on the friction disc 200. The first sleeve 210 is coaxially arranged with the friction disc 200. A slideway 211 is provided inside the first sleeve 210, and a first slide rail 110 matching the slideway is axially arranged on the transmission shaft 100. The first slide rail 110 can be embedded in the slideway 211 for axial sliding, and limit the relative movement of the slideway 211 and the first slide rail 110 in the circumferential direction. In addition, the transmission shaft 100 is a three-step stepped shaft, the first sleeve 210 is sleeved at the connection of the second step, and the first slide rail 110 is arranged at the connection of the second step shaft section and axially arranged. A spring 400 is provided between the outer end surface of the first sleeve 210 and the third step. The spring 400 is in a compressed state after installation, so as to apply the compressed elastic potential energy to the wheel disc 300 through the friction disc 200, as the static pressure necessary for forming static friction between the friction disc 200 and the wheel disc 300.

[0085] In one embodiment, if Figure 6 As shown, the second sleeve 800 coaxially arranged with the friction disc 200 is also included. The second sleeve 800 is sleeved on the transmission shaft 100 and fixedly connected to the transmission shaft 100. A second slide rail 810 is axially arranged on the second sleeve 800, and a slideway matching the second slide rail 810 is axially arranged on the friction disc 200, or a slideway is axially arranged on the second sleeve 800, and a slideway matching the slideway is axially arranged on the friction disc 200. The second slide rail 810 can be embedded in the slideway for axial sliding and limit the relative movement of the slideway and the slideway in the circumferential direction. The spring 400 is arranged between the friction disc 200 and the second sleeve 800. In this embodiment, the static pressure between the friction disc 200 and the wheel disc 300 is applied by the elastic force of the spring 400, and the size of the static pressure between the friction disc 200 and the wheel disc 300 is changed by changing the size of the elastic force of the spring 400, thereby changing the size of the static friction between the friction disc 200 and the wheel disc 300.

[0086] In one embodiment, if Figure 6 As shown, the second sleeve 800 coaxially arranged with the friction disc 200 is also included. The second sleeve 800 is sleeved on the transmission shaft 100 and fixedly connected to the transmission shaft 100. A second slide rail 810 is axially arranged on the second sleeve 800, and a slideway matching the second slide rail 810 is axially arranged on the friction disc 200, or a slideway is axially arranged on the second sleeve 800, and a slideway matching the slideway is axially arranged on the friction disc 200. The slideway can be embedded in the slideway for axial sliding and limit the relative movement of the slideway and the slideway in the circumferential direction. The spring 400 is arranged between the friction disc 200 and the second sleeve 800.

[0087] In one embodiment, if Figure 6 or Figure 7 As shown, a first sleeve 210 is provided on the friction disc 200. A slideway 211 is axially provided inside the first sleeve 210. A second slide rail 810 is axially provided on the second sleeve 800, and the second slide rail 810 can be embedded in the slideway 211 for axial sliding and limit the relative movement of the slideway 211 and the second slide rail 810 in the circumferential direction.

[0088] In one embodiment, a stop structure for limiting the position of the spring 400 is provided on the end of the second sleeve 800 away from the friction disc 200. Figure 6 As shown, the stop structure is a flange 820 disposed on the second sleeve 800 at one end away from the friction disc 200. A spring 400 is disposed between the friction disc 200 and the flange 820. The spring 400 is disposed on the outside of the first sleeve 210.

[0089] In one embodiment, if Figure 8 As shown, a plurality of second slide rails 810 are evenly arranged along the circumferential direction on the second sleeve 800, and each second slide rail 810 is arranged along the axial direction. An equal number of slideways 211 are correspondingly arranged along the circumferential direction on the inner side of the first sleeve 210. The second slide rail 810 can be embedded in the slideway 211 for axial sliding, and the relative movement of the slideway 211 and the second slide rail 810 in the circumferential direction is limited. Such an arrangement can improve the force between the second slide rail 810 and the slideway 211, and increase the service life of the device.

[0090] In one embodiment, if Fig. 9As shown, the second sleeve 800 is also provided coaxially with the friction disc 200. The second sleeve 800 is sleeved on the transmission shaft 100 and fixedly connected with the transmission shaft 100. A second slide rail 810 is provided axially on the second sleeve 800, and a slideway matching the slide rail is provided axially on the friction disc 200, or a slideway is provided axially on the sleeve, and a slideway matching the slideway is provided axially on the friction disc 200. The slide rail can be embedded in the slideway for axial sliding and limit the relative movement of the slideway and the slideway in the circumferential direction. The spring 400 is provided between the friction disc 200 and the second sleeve 800.

[0091] In one embodiment, if Fig. 9 As shown, a first sleeve 210 is provided on the friction disc 200. The first sleeve 210 is coaxially arranged with the friction disc 200. A slideway 211 is provided inside the first sleeve 210, and the second sleeve 800 is also provided coaxially with the friction disc 200. The second sleeve 800 is sleeved on the transmission shaft 100 and fixedly connected with the transmission shaft 100. A second slide rail 810 is axially arranged on the second sleeve 800. The second slide rail 810 can be embedded in the slideway 211 for axial sliding, and limit the relative movement of the slideway 211 and the second slide rail 810 in the circumferential direction. A spring 400 is provided between the bottom of the first sleeve 210 and the end surface of the second sleeve 800 close to the friction disc 200, that is, the spring 400 is provided on the inner side of the first sleeve 210. The spring 400 is in a compressed state after installation, so as to apply the compressed elastic potential energy to the wheel disc 300 through the friction disc 200, and serve as the static pressure necessary for forming the static friction between the friction disc 200 and the wheel disc 300. The spring 400 is arranged inside the first sleeve 210, which can effectively improve the working environment of the spring 400 and increase the service life of the entire device due to the sealing effect, while also avoiding the inconvenience caused by frequent cleaning of the spring.

[0092] In one embodiment, if Fig.10 As shown, it also includes a bearing seat 700 and a thrust bearing assembly 900. The bearing seat 700 is fixedly connected to the wheel disc 300. The axis of the rotating shaft of the bearing seat 700 coincides with the axis of the rotating shaft of the wheel disc 300. The bearing seat 700 is connected to the transmission shaft 100 through the thrust bearing assembly 900. The thrust bearing assembly 900 includes a first rotating body and a second rotating body that can perform relative rotational motion around the same rotation axis. The first rotating body is fixedly connected to the bearing seat 700, and the second rotating body is connected to the transmission shaft 100, or the first rotating body is fixedly connected to the transmission shaft 100, and the second rotating body is connected to the bearing seat 700.

[0093] In one embodiment, if Fig.10As shown, the thrust bearing assembly 900 is an inner and outer ring type thrust cylindrical roller bearing assembly. Its outer ring moves toward the shaft end of the transmission shaft 100 against the bearing seat 700, and the inner ring is sleeved on the transmission shaft 100. It also includes a retaining ring 60 and a bolt assembly 70. The shaft end of the transmission shaft 100 is provided with a bolt hole 120 along the axial direction. The retaining ring 60 is used to resist the inner ring in the thrust bearing assembly 900, so as to resist the thrust bearing assembly 900 and the bearing seat 700, and prevent the thrust bearing assembly 900, the bearing seat 700 and the wheel disc 300 fixedly connected to the bearing seat 700 from slipping off the end of the transmission shaft 100. The bolt assembly 70 is threadedly connected to the bolt hole 120, and is used to resist the retaining ring 60, so that static friction can be formed between the wheel disc 300 and the friction plate 200.

[0094] In one embodiment, if Fig.11 As shown, the thrust bearing assembly 900 is a left and right clip-type thrust tapered roller bearing. The left and right clip-type thrust tapered roller bearing includes a first roller seat and a second roller seat. The bearing seat 700 is provided with a bearing mounting hole of a certain depth along the axial direction. The first roller seat is connected to the bottom of the bearing mounting hole, and the second roller seat is connected to the retaining ring 60. Thus, the wheel disc 300 and the transmission shaft 100 form a bearing connection mechanism.

[0095] In one embodiment, if Fig.12 As shown, the thrust bearing assembly 900 is also included. The thrust bearing assembly 900 includes a first rotating body and a second rotating body that can perform relative rotational motion around the same rotation axis. The first rotating body is fixedly connected to the wheel disc 300, and the second rotating body is connected to the transmission shaft 100. In this way, the entire thrust bearing assembly 900 and the bearing seat 700 and the wheel disc 300 connected thereto can be supported by the retaining ring 60 and the bolt assembly 70 without slipping off from the end of the transmission shaft 100.

[0096] In one embodiment, a thrust bearing assembly 900 is further included. The thrust bearing assembly 900 includes a first rotating body and a second rotating body capable of performing relative rotational motion around the same rotation axis. The first rotating body is connected to the transmission shaft 100, and the second rotating body is fixedly connected to the wheel disc 300.

[0097] In one embodiment, if Fig.13 or Fig.14As shown, the friction disc 200 also includes a latch 80 and a second sleeve 800 coaxially arranged with the friction disc 200. A first latch hole 230 is axially arranged on one side of the friction disc 200 close to the second sleeve 800. A second latch hole 830 is axially arranged on one end of the second sleeve 800 close to the friction disc 200. The first latch hole 230 and the second latch hole 830 are connected by the latch 80, and at least one of the first latch hole 230 and the second latch hole 830 is slidably connected with the latch 80. Such an arrangement enables the friction disc 200 to move in the axial direction, but cannot make relative motion with the second sleeve 800 in the circumferential direction and can only make synchronous rotation.

[0098] In one embodiment, if Fig.14 As shown, a braking system is also included. The braking system is used to control the transmission shaft 100 to stop the torque output after the wheel disc 300 rotates a certain angle. The braking system includes a marking portion 320 arranged on the wheel disc 300 and rotating synchronously with the wheel disc 300, and a brake sensor 600 arranged on the fixed part. The marking portion 320 is used to calibrate the angle of rotation of the wheel disc 300, and trigger the brake sensor 600 to send a braking signal to stop the torque output of the transmission shaft 100. In this embodiment, the "fixed part" is relative to the "rotating part", which is a relatively stationary component, such as: a baffle 500, a syringe bottle and an infusion bottle opening device housing, etc.

[0099] In one embodiment, if Fig.14 As shown, a start sensor 90 is also included. The start sensor 90 is used to detect whether a vial or an infusion bottle is inserted and reaches the surface of the wheel disc 300, and sends a start signal to make the transmission shaft 100 output torque.

[0100] In one embodiment, the marking portion 320 includes a through hole structure (such as Fig.17 As shown), notch structure (as Fig.15 or Fig.16 ), or a marker signal transmitter (such as Fig.18 Any one of the above, or a combination of two or more.

[0101] In one embodiment, if Fig.15 or Fig.16 As shown, the marking portion 320 is a notch structure opened on the wheel disc 300 .

[0102] In one embodiment, if Fig.17 As shown, the marking portion 320 is a through-hole structure opened on the wheel disc 300 .

[0103] In one embodiment, if Fig.18As shown, the marking portion 320 is a signal transmitter provided on the roulette wheel 300 .

[0104] In one embodiment, if Figure 1 or Figure 2 or Figure 4 or Figure 5 or Figure 6 or Fig. 9 As shown, the first fixing plate 30 is also included. The baffle plate 500 is fixedly connected to the first fixing plate 30. The transmission shaft 100 is rigidly connected to the first fixing plate 30 in the axial direction. A first mounting hole 31 is opened in the middle of the first fixing plate 30. The transmission shaft 100 passes through the first mounting hole 31 and is connected to the wheel disc 300 bearing. In this embodiment, the first mounting hole 31 is mainly used to facilitate the installation of the transmission shaft 100 and the parts connected to the transmission shaft 100.

[0105] In one embodiment, if Fig.19 As shown, the baffle 500 is provided with a bottle mouth insertion hole 510. The position of the bottle mouth insertion hole 510 corresponds to the rotation path of the push and wash board 310, so that when the cillin bottle is inserted into the bottle mouth insertion hole 510, the push and wash board 310 can contact the bottle cap of the cillin bottle or the infusion bottle.

[0106] In one embodiment, if Fig. 20 As shown, the second fixing plate 40 and the reducer 20 are also included. The second fixing plate 40 is connected to the first fixing plate 30 through a connecting column, or is fixedly connected through the bent edge of the second fixing plate 40, so that a certain distance is maintained between the second fixing plate 40 and the first fixing plate 30. A support column 21 is provided on one side of the reducer 20. The support column 21 is fixedly connected to the second fixing plate 40. The transmission shaft 100 is coaxially connected to the output shaft of the reducer 20, or the transmission shaft 100 is the output shaft of the reducer 20. A second mounting hole 41 is provided in the middle of the second fixing plate 40. The transmission shaft 100 passes through the second mounting hole 41 and is connected to the friction disc 200. In this embodiment, the transmission shaft 100 is coaxially connected to the output shaft of the reducer 20, that is, the axis of the rotating shaft of the transmission shaft 100 coincides with the axis of the output shaft of the reducer 20. In addition, it can be clearly known in this embodiment that the first fixing plate 30 is fixedly connected to the support column 21 of the reducer 20 through the second fixing plate 40, and further rigidly connected to the transmission shaft 100 in the axial direction of the transmission shaft 100.

[0107] In one embodiment, if Fig. 20 As shown, the motor 10 is also included. The motor 10 shaft of the motor 10 is connected to the input shaft of the reducer 20.

[0108] In one embodiment, if Fig. 20As shown, the input shaft and the output shaft of the reducer 20 are vertical in space. Such an arrangement can facilitate the packaging of the device of the present application and can effectively reduce the space volume occupied by the device.

[0109] In one embodiment, if Figure 1 or Figure 2 As shown, the transmission shaft 100 further includes a retaining ring 60 and a bolt assembly 70. The shaft end of the transmission shaft 100 is provided with a bolt hole 120 in the axial direction. The retaining ring 60 is used to abut against the wheel disc 300 to prevent the wheel disc 300 from slipping off the end of the transmission shaft 100. The bolt assembly 70 is threadedly connected with the bolt hole 120 to abut against the retaining ring 60 and apply pressure to the retaining ring 60 so that the retaining ring 60 is tightly attached to the wheel disc 300. The wheel disc 300 is connected to the retaining ring 60 by a bearing.

[0110] In one embodiment, the bearing connection includes a sliding bearing connection, a thrust rolling bearing connection, or a combination of the two.

[0111] In one embodiment, the spring 400 includes a pressure spring 400 and / or a tension spring 400. The pressure spring 400 includes a magnetic spring 400, that is, a non-contact pressure spring 400. The tension spring 400 includes a magnetic spring 400, that is, a non-contact tension spring 400.

[0112] In one embodiment, the axial projection of the bottle mouth insertion hole 510 is located within the circular ring formed by the rotation of the push plate 310.

[0113] In one embodiment, if Fig.14 As shown, it also includes a sensor connecting member 50. The sensor connecting member 50 is used to fix the brake sensor 600 on the fixing member.

[0114] In one embodiment, if Figure 7 and Figures 10 to 13 As shown in any of the figures, a first shaft hole 220 for passing the transmission shaft 100 is provided in the middle of the friction disc 200 .

[0115] In one embodiment, if Figures 10 to 13 As shown in any of the figures, a second shaft hole 330 for passing the transmission shaft 100 is provided in the middle of the wheel disc 300 .

[0116] In one embodiment, if Figures 10 to 13 As shown in any of the figures, a third shaft hole 710 for passing the transmission shaft 100 is provided in the middle of the bearing seat 700 .

[0117] In one embodiment, if Figure 1 or Figure 2 or Figure 4 or Figure 5 or Fig.13 or Fig.14 or Fig.19 As shown, the transmission shaft 100 is a stepped shaft.

[0118] In one embodiment, a recycling box is further included, and the recycling box is used to collect the plastic cover peeled off from the aluminum-plastic composite cover.

[0119] The above-mentioned opening device for the syringe bottle and the infusion bottle is provided by frictionally fitting the friction disk 200 and the wheel disc 300, and being coaxially arranged, so that the rotation of the friction disk 200 can drive the wheel disc 300 to rotate and do external work, and a shearing and pushing structure is formed through the baffle plate 500 and the pushing and rubbing plate 310 arranged on the wheel disc 300, and the baffle plate 500 and the pushing and rubbing plate 310 apply a thrust in the opposite direction to the inserted syringe bottle or the infusion bottle, so that the plastic bottle cap of the syringe bottle or the infusion bottle is separated from the bottle body. In addition, since the friction disk 200 and the wheel disc 300 adopt friction transmission, when there is a foreign body blocking the rotation of the wheel disc 300, or the force in the opposite direction of its rotation on the wheel disc 300 is greater than the friction force of the friction disk 200 on the wheel disc 300, the friction between the friction disk 200 and the wheel disc 300 is converted from static friction to sliding friction, that is, the friction disk 200 is idling, thereby playing a role of safety protection for the device and the operator, which is not only simple in structure and convenient in operation, but also efficient and safe. For example, when an operator mistakenly forgets that the plastic bottle cap of a syringe bottle or an infusion bottle has fallen off and inserts it into the device again, the wheel 300 may be stuck or the friction resistance may be too large due to the obstruction of the aluminum cover and the rubber plug. When the resistance hindering the rotation of the wheel 300 is greater than the friction force of the friction disk 200 on the wheel 300, the friction disk 200 idles due to the change from static friction to sliding friction with the wheel 300, thereby providing safety protection for the device and the operator.

[0120] The present application also provides another implementation scheme of the same inventive concept as described above.

[0121] A device for opening a vial and an infusion bottle, such as Fig.21As shown, it includes a baffle 500, a transmission shaft 100, a fixed shaft 101, a friction disc 200 coaxially connected to the transmission shaft 100, and a wheel disc 300 coaxially connected to the fixed shaft 101. The wheel disc 300 is connected to the fixed shaft 101 by a bearing, that is, the axis of the rotating shaft of the wheel disc 300 coincides with the axis of the fixed shaft 101, and the wheel disc 300 can rotate around the fixed shaft 101. The friction disc 200 is rigidly connected to the transmission shaft 100 in the circumferential direction so that the friction disc 200 and the transmission shaft 100 rotate synchronously. The axis of the transmission shaft 100 coincides with the axis of the fixed shaft 101. The friction disc 200 and the wheel disc 300 fit each other so that the friction disc 200 applies static friction force to the wheel disc 300, thereby driving the wheel disc 300 to rotate. The wheel disc 300 is provided with a push plate 310 for applying thrust and / or rubbing force to the bottle cap of the syringe bottle or the infusion bottle. The baffle plate 500 and the washboard 310 are arranged on the same side of the wheel 300. The baffle plate 500 is used to prevent the bottle body of the vial or infusion bottle from moving along with the movement of the washboard 310, that is, to apply a thrust opposite to the washboard 310 to the vial, so that the plastic bottle cap of the vial is separated from the bottle body under the joint force of the washboard 310 and the baffle plate 500.

[0122] In the above content, "circumferentially rigid connection" refers to a connection in which the rotation angles of two objects in the rotation direction remain synchronized and no relative rotation occurs.

[0123] In one embodiment, if Fig.21 As shown, the fixed shaft 101 is fixedly connected to the baffle 500 .

[0124] In one embodiment, if Fig.21 As shown, the transmission shaft 100 is a stepped shaft.

[0125] In one embodiment, a recycling box is further included, and the recycling box is used to collect the plastic cover peeled off from the aluminum-plastic composite cover.

[0126] In one embodiment, a pre-tightening mechanism is further included, which is used to change the axial pressure between the friction disc 200 and the wheel disc 300 , thereby changing the static friction between the friction disc 200 and the wheel disc 300 .

[0127] In one embodiment, if Fig.21As shown, the preload mechanism includes a spring 400. The friction disc 200 is slidably connected to the transmission shaft 100 in the axial direction. The first end of the spring 400 is rigidly connected to the transmission shaft 100 in the axial direction to limit the first end of the spring 400 from moving in the axial direction, and the second end of the spring 400 is connected to the friction disc 200 to apply static pressure between the friction disc 200 and the wheel disc 300 through the elastic force of the spring 400, and to change the size of the static pressure between the friction disc 200 and the wheel disc 300 by changing the size of the elastic force of the spring 400, thereby changing the size of the static friction between the friction disc 200 and the wheel disc 300.

[0128] In one embodiment, if Fig.21 As shown, a first sleeve 210 is provided on the friction disc 200. The first sleeve 210 is coaxially arranged with the friction disc 200. A slideway 211 is provided inside the first sleeve 210, and a first slide rail 110 matching the slideway is axially provided on the transmission shaft 100. The slide rail can be embedded in the slideway for axial sliding and limit the relative movement of the slideway and the slide rail in the circumferential direction. That is, the friction disc 200 and the transmission shaft 100 are rigidly connected in the circumferential direction and slidingly connected in the axial direction.

[0129] In one embodiment, if Fig.21 As shown, a first sleeve 210 is provided on the friction disc 200. The first sleeve 210 is coaxially arranged with the friction disc 200. A slideway 211 is provided inside the first sleeve 210, and a first slide rail 110 matching the slideway is axially arranged on the transmission shaft 100. The first slide rail 110 can be embedded in the slideway 211 for axial sliding, and limit the relative movement of the slideway 211 and the first slide rail 110 in the circumferential direction. In addition, the transmission shaft 100 is at least a two-step stepped shaft, the first sleeve 210 is sleeved on the stepped connection, and the first slide rail 110 is arranged at the high-order shaft section of the stepped connection and is axially arranged. A spring 400 is arranged between the bottom of the first sleeve 210 and the stepped connection. The spring 400 is in a compressed state after installation, so that the compressed elastic potential energy is applied to the wheel disc 300 through the friction disc 200, as the static pressure necessary for forming static friction between the friction disc 200 and the wheel disc 300.

[0130] In one embodiment, if Fig.21As shown, a braking system is also included. The braking system is used to control the transmission shaft 100 to stop the torque output after the wheel disc 300 rotates a certain angle. The braking system includes a marking portion 320 arranged on the wheel disc 300 and rotating synchronously with the wheel disc 300, and a brake sensor 600 arranged on the fixed part. The marking portion 320 is used to calibrate the angle of rotation of the wheel disc 300, and trigger the brake sensor 600 to send a braking signal to stop the torque output of the transmission shaft 100. In this embodiment, the "fixed part" is relative to the "rotating part", which is a relatively stationary component, such as: a baffle 500, a syringe bottle and an infusion bottle opening device housing, etc.

[0131] The above-mentioned opening device for the syringe bottle and the infusion bottle is provided by frictionally fitting the friction disk 200 and the wheel disc 300, and being coaxially arranged, so that the rotation of the friction disk 200 can drive the wheel disc 300 to rotate and do external work, and a shearing and pushing structure is formed through the baffle plate 500 and the pushing and rubbing plate 310 arranged on the wheel disc 300, and the baffle plate 500 and the pushing and rubbing plate 310 apply a thrust in the opposite direction to the inserted syringe bottle or the infusion bottle, so that the plastic bottle cap of the syringe bottle or the infusion bottle is separated from the bottle body. In addition, since the friction disk 200 and the wheel disc 300 adopt friction transmission, when there is a foreign body blocking the rotation of the wheel disc 300, or the force in the opposite direction of its rotation on the wheel disc 300 is greater than the friction force of the friction disk 200 on the wheel disc 300, the friction between the friction disk 200 and the wheel disc 300 is converted from static friction to sliding friction, that is, the friction disk 200 is idling, thereby playing a role of safety protection for the device and the operator, which is not only simple in structure and convenient in operation, but also efficient and safe.

[0132] According to the above content, the present application also provides another implementation scheme of the same inventive concept as the above content.

[0133] A device for opening a vial and an infusion bottle, such as Fig. 22The device shown includes a baffle 500, a wheel disc 300, a transmission shaft 100, a bearing seat 102, and a friction disc 200 coaxially connected to the transmission shaft 100. The friction disc 200 is rigidly connected to the transmission shaft 100 in the circumferential direction ("rigid connection in the circumferential direction" means that the rotation angles of the two objects in the rotation direction are kept synchronous, and there is no relative rotation connection), so that the friction disc 200 and the transmission shaft 100 rotate synchronously. The wheel disc 300 is provided with a push plate 310 for applying thrust and / or rubbing force to the bottle cap of the syringe bottle or the infusion bottle, and a fixed shaft 101 perpendicular to the rotation plane of the wheel disc 300. The fixed shaft 101 and the push plate 310 are arranged on the same side of the wheel disc 300, and the axis of the fixed shaft 101 coincides with the axis of the rotation shaft of the wheel disc 300. The fixed shaft 101 is connected to the bearing seat 102 in a bearing connection. The axis of the transmission shaft 100 coincides with the axis of the fixed shaft 101. The friction disc 200 and the wheel disc 300 are fitted to each other so that the friction disc 200 applies static friction to the wheel disc 300, thereby driving the wheel disc 300 to rotate. The baffle 500 and the push and wash board 310 are arranged on the same side of the wheel disc 300. The baffle 500 is used to prevent the body of the syringe bottle or the infusion bottle from moving with the movement of the push and wash board 310. That is, a thrust opposite to the push and wash board 310 is applied to the syringe bottle, so that the syringe bottle is separated from the plastic bottle cap and the bottle body under the joint force of the push and wash board 310 and the baffle 500.

[0134] In one embodiment, if Fig. 22 As shown, the bearing seat 102 is fixedly connected to the baffle 500.

[0135] In one embodiment, if Fig. 22 As shown, the transmission shaft 100 is a stepped shaft.

[0136] In one embodiment, a recycling box is further included, and the recycling box is used to collect the plastic cover peeled off from the aluminum-plastic composite cover.

[0137] In one embodiment, a pre-tightening mechanism is further included, which is used to change the axial pressure between the friction disc 200 and the wheel disc 300 , thereby changing the static friction between the friction disc 200 and the wheel disc 300 .

[0138] In one embodiment, if Fig.21 As shown, the preload mechanism includes a spring 400. The friction disc 200 is slidably connected to the transmission shaft 100 in the axial direction. The first end of the spring 400 is rigidly connected to the transmission shaft 100 in the axial direction to limit the first end of the spring 400 from moving in the axial direction, and the second end of the spring 400 is connected to the friction disc 200 to apply static pressure between the friction disc 200 and the wheel disc 300 through the elastic force of the spring 400, and to change the size of the static pressure between the friction disc 200 and the wheel disc 300 by changing the size of the elastic force of the spring 400, thereby changing the size of the static friction between the friction disc 200 and the wheel disc 300.

[0139] In one embodiment, if Fig.21 As shown, a first sleeve 210 is provided on the friction disc 200. The first sleeve 210 is coaxially arranged with the friction disc 200. A slideway 211 is provided inside the first sleeve 210, and a first slide rail 110 matching the slideway is axially provided on the transmission shaft 100. The slide rail can be embedded in the slideway for axial sliding and limit the relative movement of the slideway and the slide rail in the circumferential direction. That is, the friction disc 200 and the transmission shaft 100 are rigidly connected in the circumferential direction and slidingly connected in the axial direction.

[0140] In one embodiment, if Fig.21 As shown, a first sleeve 210 is provided on the friction disc 200. The first sleeve 210 is coaxially arranged with the friction disc 200. A slideway 211 is provided inside the first sleeve 210, and a first slide rail 110 matching the slideway is axially arranged on the transmission shaft 100. The first slide rail 110 can be embedded in the slideway 211 for axial sliding, and limit the relative movement of the slideway 211 and the first slide rail 110 in the circumferential direction. In addition, the transmission shaft 100 is at least a two-step stepped shaft, the first sleeve 210 is sleeved on the stepped connection, and the first slide rail 110 is arranged at the high-order shaft section of the stepped connection and is axially arranged. A spring 400 is arranged between the bottom of the first sleeve 210 and the stepped connection. The spring 400 is in a compressed state after installation, so that the compressed elastic potential energy is applied to the wheel disc 300 through the friction disc 200, as the static pressure necessary for forming static friction between the friction disc 200 and the wheel disc 300.

[0141] In one embodiment, if Fig.21 As shown, a braking system is also included. The braking system is used to control the transmission shaft 100 to stop the torque output after the wheel disc 300 rotates a certain angle. The braking system includes a marking portion 320 arranged on the wheel disc 300 and rotating synchronously with the wheel disc 300, and a brake sensor 600 arranged on the fixed part. The marking portion 320 is used to calibrate the angle of rotation of the wheel disc 300, and trigger the brake sensor 600 to send a braking signal to stop the torque output of the transmission shaft 100. In this embodiment, the "fixed part" is relative to the "rotating part", which is a relatively stationary component, such as: a baffle 500, a syringe bottle and an infusion bottle opening device housing, etc.

[0142] The above-mentioned opening device for the syringe bottle and the infusion bottle is provided by frictionally fitting the friction disk 200 and the wheel disc 300, and being coaxially arranged, so that the rotation of the friction disk 200 can drive the wheel disc 300 to rotate and do external work, and a shearing and pushing structure is formed through the baffle plate 500 and the pushing and rubbing plate 310 arranged on the wheel disc 300, and the baffle plate 500 and the pushing and rubbing plate 310 apply a thrust in the opposite direction to the inserted syringe bottle or the infusion bottle, so that the plastic bottle cap of the syringe bottle or the infusion bottle is separated from the bottle body. In addition, since the friction disk 200 and the wheel disc 300 adopt friction transmission, when there is a foreign body blocking the rotation of the wheel disc 300, or the force in the opposite direction of its rotation on the wheel disc 300 is greater than the friction force of the friction disk 200 on the wheel disc 300, the friction between the friction disk 200 and the wheel disc 300 is converted from static friction to sliding friction, that is, the friction disk 200 is idling, thereby playing a role of safety protection for the device and the operator, which is not only simple in structure and convenient in operation, but also efficient and safe.

[0143] In order to make it easier to understand the present application, a simple description of the method of using the device of the present application is given below. It should be noted that the following content should not be construed as limiting the scope of protection of the present application.

[0144] The medical staff holds a syringe bottle or an infusion bottle and puts it into the bottle mouth insertion hole 510 of the baffle 500 of the opening device of the present application; the start sensor 90 senses the bottle and sends a start signal; the electronic control program starts the bottle opening motor 10; the bottle opening motor 10 increases the torque through the reducer 20 and transmits it to the transmission shaft 100; the transmission shaft 100 drives the friction disk 200 that is pre-supported and fixed to rotate; the wheel 300 rotates synchronously with the friction disk under the drive of the static friction force of the friction disk 200; the push plate 310 arranged on the wheel 300 contacts the bottle cap of the syringe bottle or the infusion bottle, and together with the baffle 500, applies a thrust in the opposite direction to the syringe bottle or the infusion bottle, so that the plastic bottle cap of the aluminum-plastic combination cover is separated from the bottle body, thereby achieving the purpose of opening the syringe bottle or the infusion bottle. The marking part 320 set on the wheel disc 300 will be detected by the brake sensor 600 when the wheel disc 300 rotates one circle, and the brake sensor 600 is triggered to send a brake signal to stop the torque output of the transmission shaft 100, and the electronic control program turns off the bottle opening motor 10. The plastic cover falls into the recycling box, and the medical staff takes out the opened vial or infusion bottle, completing the opening operation of a vial or infusion bottle.

[0145] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0146] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A device for opening a vial or an infusion bottle, characterized in that: It includes a baffle, a transmission shaft, a friction disc and a wheel disc coaxially connected to the transmission shaft; The wheel disc is connected to the transmission shaft by a bearing; The friction disc is rigidly connected to the transmission shaft in the circumferential direction so that the friction disc and the transmission shaft rotate synchronously; The friction disc and the wheel disc are fitted to each other so that the friction disc applies static friction force to the wheel disc, thereby driving the wheel disc to rotate; The wheel disc is provided with a push plate for applying a pushing force and / or a rubbing force to the bottle cap of the vial or the infusion bottle; The baffle plate and the washboard are arranged on the same side of the wheel disc; The baffle is used to prevent the bottle body of the syringe bottle or the infusion bottle from moving along with the movement of the push plate.

2. The opening device for vials and infusion bottles according to claim 1, characterized in that: Also includes a preload mechanism; The pre-tightening mechanism is used to change the axial pressure between the friction disk and the wheel disk, thereby changing the magnitude of the static friction force between the friction disk and the wheel disk.

3. The opening device for the vial and infusion bottle according to claim 2, characterized in that: The preload mechanism comprises a spring; The friction disc is slidably connected to the transmission shaft in the axial direction; The first end of the spring is rigidly connected to the transmission shaft in the axial direction to limit the axial movement of the first end of the spring, and the second end of the spring is connected to the friction disk to apply static pressure between the friction disk and the wheel disk through the elastic force of the spring, and to change the size of the static pressure between the friction disk and the wheel disk by changing the size of the elastic force of the spring, thereby changing the size of the static friction between the friction disk and the wheel disk.

4. The opening device for a vial or infusion bottle according to claim 2 or 3, characterized in that: The pre-tightening mechanism comprises a thread locking portion; The thread locking portion is threadedly connected to the shaft end of the transmission shaft, and the axial position of the thread locking portion on the transmission shaft can be changed by changing the amount of thread engagement; The wheel disc is slidably connected to the transmission shaft in the axial direction; The thread locking portion is used to abut against the wheel disc to prevent the wheel disc from slipping off the end of the transmission shaft; The thread locking portion is also used to change the magnitude of the static pressure between the friction disk and the wheel disk by changing the degree of thread engagement with the transmission shaft, thereby changing the magnitude of the static friction force between the friction disk and the wheel disk.

5. The opening device for the vial and infusion bottle according to claim 3, characterized in that: The transmission shaft is provided with a slide rail along the axial direction, and the friction disc is provided with a slideway matching with the slide rail along the axial direction; or, The transmission shaft is provided with a slideway along the axial direction, and the friction disc is provided with a slide rail matching with the slideway along the axial direction; The slide rail can be embedded in the slideway to slide axially and limit the relative movement of the slideway and the slide rail in the circumferential direction.

6. The opening device for syringe bottles and infusion bottles according to claim 3, characterized in that: A first sleeve is arranged on the friction disc; The first sleeve is coaxially arranged with the friction disc; A slideway is provided inside the first sleeve, and a slide rail matching the slideway is provided on the transmission shaft along the axial direction, or a slide rail is provided inside the first sleeve, and a slideway matching the slide rail is provided on the transmission shaft along the axial direction; The slide rail can be embedded in the slideway to slide axially and limit the relative movement of the slideway and the slide rail in the circumferential direction.

7. The opening device for syringe bottles and infusion bottles according to claim 3, characterized in that: Also includes a second sleeve coaxially arranged with the friction disc; The second sleeve is sleeved on the transmission shaft and fixedly connected to the transmission shaft; The second sleeve is provided with a slide rail in the axial direction, and the friction disc is provided with a slideway in the axial direction to match the slide rail, or the sleeve is provided with a slideway in the axial direction, and the friction disc is provided with a slide rail in the axial direction to match the slideway; The slide rail can be embedded in the slideway to slide axially and limit the relative movement of the slideway and the slide rail in the circumferential direction; The spring is disposed between the friction plate and the second sleeve.

8. The opening device for syringe bottles and infusion bottles according to claim 3, characterized in that: It also includes a latch and a second sleeve coaxially arranged with the friction disc; A first pin hole is axially arranged on one side of the friction disc close to the second sleeve; A second pin hole is axially arranged at one end of the second sleeve close to the friction disc; The first latch hole and the second latch hole are connected by the latch, and at least one of the first latch hole and the second latch hole is slidably connected to the latch.

9. The opening device for a vial or infusion bottle according to claim 1, characterized in that: Also includes a bearing seat; The bearing seat is fixedly connected to the wheel disc; The axis of rotation of the bearing seat coincides with the axis of rotation of the wheel disc; The bearing seat is connected to the transmission shaft bearing.

10. The opening device for vials and infusion bottles according to claim 1, characterized in that: It also includes the braking system; The braking system is used to control the transmission shaft to stop torque output after the wheel disc rotates a certain angle; The brake system includes a marking portion arranged on the wheel disc and rotating synchronously with the wheel disc, and a brake sensor arranged on a fixing member; The marking portion is used to calibrate the rotation angle of the wheel disc and trigger the brake sensor to send a brake signal to stop the torque output of the transmission shaft.

11. The opening device for a vial or infusion bottle according to claim 10, characterized in that: The marking part includes any one of a through hole structure, a notch structure opened on the wheel disc, or a marking signal transmitter arranged on the wheel disc, or a combination of two or more thereof.

12. The opening device for a vial or an infusion bottle according to claim 1 or 10, characterized in that: Also included is a start sensor; The start sensor is used to detect whether a vial of syringe or an infusion bottle is inserted and reaches the surface of the wheel disc, and sends a start signal to make the transmission shaft output torque.

13. A device for opening a vial or an infusion bottle, characterized in that: It includes a baffle, a transmission shaft, a fixed shaft, a friction disc coaxially connected to the transmission shaft, and a wheel disc coaxially connected to the fixed shaft; The wheel disc is connected to the fixed shaft by a bearing; The friction disc is rigidly connected to the transmission shaft in the circumferential direction so that the friction disc and the transmission shaft rotate synchronously; The transmission shaft and the fixed shaft have axes that coincide with each other; The friction disc and the wheel disc are fitted to each other so that the friction disc applies static friction force to the wheel disc, thereby driving the wheel disc to rotate; The wheel disc is provided with a push plate for applying a pushing force and / or a rubbing force to the bottle cap of the vial or the infusion bottle; The baffle plate and the washboard are arranged on the same side of the wheel disc; The baffle is used to prevent the bottle body of the syringe bottle or the infusion bottle from moving along with the movement of the push plate.

14. The opening device for a vial or infusion bottle according to claim 13, characterized in that: The fixed shaft is fixedly connected to the baffle.

15. A device for opening a vial or an infusion bottle, characterized in that: It includes a baffle, a wheel disc, a transmission shaft, a bearing seat, and a friction disc coaxially connected to the transmission shaft; The friction disc is rigidly connected to the transmission shaft in the circumferential direction so that the friction disc and the transmission shaft rotate synchronously; The wheel disc is provided with a push plate for applying a thrust and / or a rubbing force to the bottle cap of the vial or the infusion bottle, and a fixed shaft perpendicular to the rotation plane of the wheel disc; The fixed shaft and the push plate are arranged on the same side of the wheel disc, and the axis of the fixed shaft coincides with the axis of the rotating shaft of the wheel disc; The fixed shaft is connected to the bearing seat bearing; The transmission shaft and the fixed shaft have axes that coincide with each other; The friction disc and the wheel disc are fitted to each other so that the friction disc applies static friction force to the wheel disc, thereby driving the wheel disc to rotate; The baffle plate and the washboard are arranged on the same side of the wheel disc; The baffle is used to prevent the bottle body of the syringe bottle or the infusion bottle from moving along with the movement of the push plate.

16. The opening device for a vial or infusion bottle according to claim 15, characterized in that: The bearing seat is fixedly connected to the baffle.

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