Liquid bottle puncture device

Abstract

The invention discloses a liquid bottle puncturing device in the technical field of medical instruments. The liquid bottle puncturing device comprises a base plate, a bearing seat, a sliding mechanism, a puncturing mechanism and a self-locking mechanism. The sliding mechanism and the puncturing mechanism are installed on one side of the base plate, the bearing seat is installed on the sliding mechanism, the bearing seat and the puncturing mechanism are installed in parallel and are both perpendicular to the base plate, and the self-locking mechanism is installed on the bearing seat and the puncturing mechanism. According to the liquid bottle puncture device, when the liquid bottle and the puncture needle are connected or separated, medical staff do not need to frequently press the liquid bottle manually, operation is easy and convenient, the puncture needle is perpendicular to the liquid bottle all the time, the service life of the puncture needle can be effectively prolonged, and when the puncture needle of the liquid bottle is connected or separated, the puncture needle cannot be damaged. Medical staff can have two operation options of automatic needle insertion and manual needle insertion. When the automatic operation options are selected, the manual operation options can be used as alternative operation modes of medical staff, so that faults of the automatic operation mechanism are prevented.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a liquid bottle puncturing device. Background Art

[0002] High-pressure syringes are mainly divided into two types: piston syringe type and peristaltic pump type. Compared with piston syringes, peristaltic pump syringes omit the syringe aspiration step, simplifying the operation process, thereby shortening the treatment time of a single patient and improving the hospital's treatment efficiency. Therefore, their acceptance in hospitals is increasing.

[0003] However, when operating the bottle holder that connects or separates the medicine bottle and the medical hose, medical staff need to frequently press the medicine bottle manually, which is cumbersome and physically demanding. In addition, during the manual pressing process, if the direction of the applied force deviates from the axis of the puncture needle by a certain angle, the service life and number of uses of the puncture needle will be reduced. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a liquid bottle puncture device. When connecting or separating the liquid bottle and the puncture needle, the medical staff does not need to frequently press the liquid bottle manually. The operation is simple and convenient, and the puncture needle and the liquid bottle are always vertical, which can effectively increase the service life of the puncture needle.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0006] The present invention provides a liquid bottle puncturing device, comprising a base plate, a supporting seat, a sliding mechanism, a puncturing mechanism and a self-locking mechanism;

[0007] The sliding mechanism is installed on one side of the base plate, the puncture mechanism is installed on the other side of the base plate, the support seat is installed on the sliding mechanism, the support seat and the puncture mechanism are installed in parallel and perpendicular to the base plate, and the self-locking mechanism is installed between the sliding mechanism and the base plate;

[0008] The sliding mechanism can make the support seat approach or move away from the puncture mechanism along the axis, and the axis is a straight line passing through the center of the support seat and the center of the puncture mechanism, and is perpendicular to the plane where the support seat and the puncture mechanism are located;

[0009] The support seat is used to place the liquid bottle. The support seat is close to the puncture mechanism until the puncture mechanism punctures the liquid bottle, and the self-locking mechanism is locked to keep the relative positions of the support seat and the puncture mechanism unchanged; after the self-locking mechanism is unlocked, the support seat can be away from the puncture mechanism.

[0010] Furthermore, the sliding mechanism includes a guide rail and a first slider, wherein the guide rail is fixedly connected to the base plate, the first slider is slidably connected to the guide rail, and the supporting seat is detachably connected to the first slider.

[0011] Furthermore, the self-locking mechanism includes a first lock body, a second lock body and a reset mechanism, and the first lock body and the second lock body can cooperate to lock or separate to unlock;

[0012] The reset mechanism includes a guide column, a limit platform and a spring. The guide column is installed on the base plate parallel to the guide rail. The limit platform is installed on the top of the guide column. The first lock body is installed on the first slider. The first slider is provided with a through hole and is sleeved on the guide column through the through hole and is located below the limit platform. The spring is sleeved on the guide column and abuts between the bottom of the guide column and the first slider. The second lock body is fixedly connected to the base plate.

[0013] During the sliding process of the first lock body driven by the first slider, the first lock body and the second lock body can automatically cooperate to lock or automatically separate to unlock.

[0014] Further, the first lock body includes a first lock body main body and a swing arm, and the second lock body includes a second lock body main body and a hook;

[0015] The first lock body is mounted on the first slider, the swing arm is hinged on the first lock body, the second lock body is mounted on the base plate, and the hook is fixedly connected to the second lock body for cooperating with the swing arm to limit the sliding of the first lock body and realize the locking and unlocking of the self-locking mechanism;

[0016] The swing arm can only swing between a first swing position and a second swing position with the hinge point as the axis, wherein the angle between the second swing position and the horizontal plane is smaller than that between the first swing position, and the motion trajectory of the swing arm includes a swing locking position, wherein the swing locking position is located between the first swing position and the second swing position, and the swing arm has the following motion characteristics:

[0017] Initially, the swing arm is located at the first swing position, and the swing arm is in a free state;

[0018] When the swing arm is in a free state, it can swing between a first swing position and a second swing position. When the swing arm reaches the second swing position in the free state, the swing arm switches to a locked state.

[0019] When the swing arm is in the locked state, it can swing between the second swing position and the swing locking position; when the swing arm reaches the second swing position when in the locked state, the swing arm switches to the free state;

[0020] When the swing arm is in the first swing position, the first lock body can slide; during the sliding process of the first lock body, the swing arm can contact the second lock body body, and then swing under the constraint of the contour line of the second lock body body; when the swing arm is in the locking position and the swing arm cooperates with the hook, the first slider cannot slide.

[0021] Furthermore, a buckle for detachably connecting with the first slider is provided on one side of the supporting seat, and a through hole for installing the liquid bottle is provided at the center of the supporting seat, and the through hole penetrates on the side away from the buckle to form a gap.

[0022] The puncture mechanism comprises a puncture needle seat and a puncture needle. The puncture needle seat is installed on the base plate perpendicularly to the base plate, and the puncture needle is installed at the center of the puncture needle seat perpendicularly to the puncture needle seat, with the needle head pointing to the supporting seat.

[0023] It also includes a pushing mechanism, which includes a second slider, a pushing plate and a buffer pad;

[0024] The second sliding block is slidably connected to the guide rail, the push plate is connected to the second sliding block, and the buffer pad is installed on a side of the push plate close to the supporting seat.

[0025] It also includes a driving device and a transmission mechanism, wherein the driving device is in transmission connection with the transmission mechanism, and the transmission mechanism is in transmission connection with the pushing mechanism; under the transmission action of the transmission mechanism, the driving device can drive the pushing mechanism to slide back and forth along the guide rail.

[0026] It also includes a proximity switch, which is installed on the substrate and is used to obtain the position information of the pushing mechanism.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The liquid bottle puncture device provided by the present invention is provided with a supporting seat and a puncture mechanism which are parallel to each other and perpendicular to the base plate, the supporting seat is installed on the sliding mechanism, and the sliding mechanism can make the supporting seat approach or move away from the puncture mechanism along the central axis, so that during the operation of the liquid bottle puncture device, the puncture needle and the liquid bottle are always perpendicular, which can effectively increase the service life of the puncture needle, and by providing a self-locking mechanism, it is automatically locked after puncture to prevent accidents, and when connecting or separating the liquid bottle and the puncture needle, medical staff do not need to frequently press the liquid bottle manually, and the operation is simple and convenient;

[0029] The liquid bottle puncturing device provided by the present invention is provided with a pushing mechanism, a driving device and a transmission mechanism. Under the transmission action of the transmission mechanism, the driving device can drive the pushing mechanism to work, so that the puncture needle punctures the liquid bottle. Both manual and automatic control modes are provided, which can not only improve efficiency but also cope with emergencies, such as manual control when the transmission mechanism is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a side structural schematic diagram of a liquid bottle puncturing device provided by an embodiment of the present invention;

[0031] Figure 2 is a schematic diagram of the rear view structure of the liquid bottle puncturing device provided by an embodiment of the present invention;

[0032] Figure 3 is a schematic structural diagram of a supporting seat provided by an embodiment of the present invention;

[0033] Figure 4 Schematic diagram of the working process of the liquid bottle puncturing device provided by an embodiment of the present invention;

[0034] Figure 5 is a structural schematic diagram of a reset mechanism provided by an embodiment of the present invention;

[0035] Figure 6 is a schematic diagram of the working process of the self-locking mechanism provided by an embodiment of the present invention;

[0036] Figure 7 is a schematic diagram of the working process of the self-locking mechanism provided by an embodiment of the present invention;

[0037] Figure 8 is a schematic diagram of the working process of the self-locking mechanism provided by an embodiment of the present invention;

[0038] Fig. 9 is a structural schematic diagram of a first lock body provided by an embodiment of the present invention;

[0039] Fig.10 is a side structural schematic diagram of a liquid bottle puncturing device provided by an embodiment of the present invention;

[0040] Fig.11 is a schematic structural diagram of a pushing mechanism provided by an embodiment of the present invention;

[0041] Fig.12 Schematic diagram of the working process of the liquid bottle puncturing device provided by an embodiment of the present invention;

[0042] Fig.13 Schematic diagram of the working process of the liquid bottle puncturing device provided by an embodiment of the present invention;

[0043] Fig.14is a schematic diagram of the rear view structure of the liquid bottle puncturing device provided in an embodiment of the present invention;

[0044] Fig.15 is a side structural schematic diagram of a liquid bottle puncturing device provided by an embodiment of the present invention;

[0045] Fig.16 It is a structural schematic diagram of a self-locking mechanism provided by an embodiment of the present invention.

[0046] In the figure: 1. base plate; 2. supporting seat; 3. liquid bottle; 4. guide rail; 5. first slider; 6. guide column; 7. limit table; 8. spring; 9. first lock body; 10. swing arm; 11. second lock body; 12. hook; 13. buckle; 14. through hole; 15. gap; 16. puncture needle seat; 17. puncture needle; 18. second slider; 19. push plate; 20. buffer pad; 21. first proximity switch; 22. second proximity switch; 23. medical hose; 24. driving device; 25. transmission mechanism; 25-1. driving wheel; 25-2. driven wheel; 25-3. synchronous belt; 25-4. lead screw; 25-5. lead screw nut. DETAILED DESCRIPTION

[0047] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0048] Example 1

[0049] The present embodiment provides a liquid bottle puncturing device, comprising a base plate 1, a supporting seat 2, a sliding mechanism, a puncturing mechanism and a self-locking mechanism, wherein the sliding mechanism is installed on one side of the base plate 1, the puncturing mechanism is installed on the other side of the base plate 1, the supporting seat 2 is installed on the sliding mechanism, the supporting seat 2 and the puncturing mechanism are installed in parallel and are both perpendicular to the base plate 1, and the self-locking mechanism is installed between the sliding mechanism and the base plate 1; the sliding mechanism can make the supporting seat 2 approach or move away from the puncturing mechanism along an axis, and the axis is a straight line passing through the center of the supporting seat 2 and the center of the puncturing mechanism, and is perpendicular to the plane where the supporting seat 2 and the puncturing mechanism are located; the supporting seat 2 is used to place the liquid bottle 3, and the supporting seat 2 is close to the puncturing mechanism until the puncturing mechanism punctures the liquid bottle 3, and the self-locking mechanism is locked, so that the relative position of the supporting seat 2 and the puncturing mechanism remains unchanged; after the self-locking mechanism is unlocked, the supporting seat 2 can move away from the puncturing mechanism.

[0050] like Figure 1 and Figure 2 As shown, the sliding mechanism includes a guide rail 4 and a first slider 5, wherein the guide rail 4 is fixedly connected to the base plate 1, the first slider 5 is slidably connected to the guide rail 4, and the supporting seat 2 is detachably connected to the first slider 5.

[0051] like Figure 4 As shown, the puncture mechanism includes a puncture needle seat 16 and a puncture needle 17. The puncture needle seat 16 is installed on the substrate 1 perpendicularly to the substrate 1, and the puncture needle 17 is installed at the center of the puncture needle seat 16 perpendicularly to the puncture needle seat 16, and the needle head points to the supporting seat 2. When the liquid bottle puncture device is working, the liquid bottle 3 is inverted on the supporting seat 2, and the liquid bottle 3 is coaxial with the puncture needle 17. The supporting seat 2 slides downward along the guide rail 4 with the first slider 5 until the puncture needle 17 penetrates the liquid bottle 3.

[0052] like Figure 3 As shown, in this embodiment, a buckle 13 for detachably connecting with the first slider 5 is provided on one side of the supporting seat 2, and a through hole 14 for installing the liquid bottle 3 is provided at the center of the supporting seat 2. The through hole 14 penetrates on the side away from the buckle 13 to form a gap 15, and medical staff can observe the liquid level of the liquid bottle through the gap 15 for reference.

[0053] like Figure 2 As shown, the self-locking mechanism includes a first lock body, a second lock body and a reset mechanism, and the first lock body and the second lock body can cooperate to lock or separate to unlock; Figure 5 As shown, the reset mechanism includes a guide column 6, a limit platform 7 and a spring 8. The guide column 6 is installed on the base plate 1 parallel to the guide rail 4. The limit platform 7 is installed on the top of the guide column 6. The first lock body is installed on the first slider 5. The first slider 5 is provided with a through hole, which is sleeved on the guide column 6 through the through hole and is located below the limit platform 7. The spring 8 is sleeved on the guide column 6 and abuts between the bottom of the guide column 6 and the first slider 5. The second lock body is fixedly connected to the base plate 1.

[0054] like Fig. 9 As shown, the first lock body includes a first lock body main body 9 and a swing arm 10, and the second lock body includes a second lock body main body 11 and a hook 12. The first lock body main body 9 is installed on the first slider 5 and is fixedly connected to the top of the spring 8. The swing arm 10 is hinged on the first lock body main body 9, and the second lock body main body 11 is installed on the substrate 1. The hook 12 is fixedly connected to the second lock body main body 11 and is used to cooperate with the swing arm 10 to limit the sliding of the first lock body and realize the locking and unlocking of the self-locking mechanism.

[0055] like Fig. 9 As shown, the swing arm 10 can only swing between the first swing position and the second swing position with the hinge point as the axis, wherein the angle between the second swing position and the horizontal plane is smaller than that of the first swing position, and the motion trajectory of the swing arm 10 includes a swing locking position, and the swing locking position is located between the first swing position and the second swing position, as shown in FIG. Fig. 9The middle swing arm 10 is currently located at the first swing position, the dotted line position closest to the first swing position is the swing locking position, and the dotted line position farthest from the first swing position is the second swing position.

[0056] The swing arm 10 has the following motion characteristics:

[0057] Initially, the swing arm 10 is located at a first swing position, and the swing arm 10 is in a free state;

[0058] When the swing arm 10 is in a free state, it can swing between a first swing position and a second swing position. When the swing arm 10 reaches the second swing position in the free state, the swing arm 10 switches to a locked state.

[0059] When the swing arm 10 is in the locked state, it can swing between the second swing position and the swing locking position; when the swing arm 10 reaches the second swing position when in the locked state, the swing arm 10 switches to the free state.

[0060] When the swing arm 10 is located in the first swing position, the first lock body can slide; during the sliding process of the first lock body, the swing arm 10 can contact the second lock body main body 11, and then swing under the constraint of the contour line of the second lock body main body 11; when the swing arm 10 is located in the locking position and the swing arm 10 cooperates with the hook 12, the first slider 5 cannot slide.

[0061] The working process of the self-locking mechanism is as follows Figures 6 to 8 As shown, initially, Figure 6 As shown, the swing arm 10 is located at the first swing position. When the swing arm 10 is in a free state, the medical staff puts the liquid bottle 3 upside down on the supporting seat 2. Under the elastic force of the spring 8 of the reset mechanism and the limiting effect of the limit platform 7, the first slider 5 will be stabilized in a fixed position. The position of the supporting seat 2 at this time is called the first position;

[0062] After ensuring that the installation is complete, the medical staff presses the bottom of the liquid bottle 3, and the first slider 5 moves along the guide rail 4 close to the puncture mechanism. At this time, the first lock body also moves close to the second lock body, and the spring 8 is compressed;

[0063] like Figure 7As shown, as the downward pressure continues, when the pressure is pressed down until the swing arm 10 contacts the second lock body 11, the pressure is continued, and the puncture needle 17 pierces the liquid bottle. The swing arm 10 will swing to the right along the outer contour of the first lock body 11, and the swing arm 10 passes the swing locking position and reaches the second swing position. At this time, the swing arm 10 cannot continue to swing, and the swing arm 10 switches to the locked state, and the medical staff's downward pressure operation cannot continue. After releasing the hand, under the action of the spring 8, the first lock body retreats upward, and under the limiting action of the hook 12, the swing arm 10 swings toward the swing locking position until it reaches the swing locking position and is locked. When the swing arm 10 is locked in the swing locking position, the hook 12 and the swing arm 10 are still in a matching state, and the first lock body cannot continue to lift up, so the position of the liquid bottle 3 is also locked, and the self-locking mechanism completes self-locking. The position of the support seat 2 at this time is called the second position;

[0064] When the liquid bottle 3 needs to be replaced, the medical staff presses the bottom of the liquid bottle 3 again. Similar to the first time, the swing arm 10 swings to the right along the outer contour of the first lock body 11 until it reaches the second swing position, and the swing arm 10 switches to a free state. After releasing the hand, under the action of the spring 8, the first lock body retreats upward, and under the limiting action of the hook 12, the swing arm 10 swings toward the first swing position until it reaches a swing position. In the first swing position, the swing arm 10 and the hook 12 cannot cooperate, so the support seat 2 returns to the first position under the elastic force of the spring 8 of the reset mechanism and the limiting action of the limit platform 7. At this time, the puncture needle 17 has also left the liquid bottle 3, and the medical staff can replace the liquid bottle.

[0065] It should be noted that, based on the present invention, the first lock body 9 is installed on the guide rail 4, and the second lock body 11 is installed on the first slider 5, which can also realize the self-locking function. This installation method is also within the protection scope of the present invention.

[0066] Example 2

[0067] This embodiment provides a liquid bottle puncture device, such as Fig.10 As shown, different from Example 2, it also includes a pushing mechanism, which includes a second slider 18, a pushing plate 19 and a buffer pad 20, wherein the second slider 18 is slidably connected to the guide rail 4, the pushing plate 19 is connected to the second slider 18, and the buffer pad 20 is installed on a side of the pushing plate 19 close to the supporting seat 2, and the buffer pad 20 can be made of a material with a buffering function such as rubber, silicone or TPU.

[0068] In this embodiment, the liquid bottle puncturing device also includes a driving device 24 and a transmission mechanism 25, the driving device 24 is transmission-connected to the transmission mechanism 25, and the transmission mechanism 25 is transmission-connected to the pushing mechanism; under the transmission action of the transmission mechanism 25, the driving device 24 can drive the pushing mechanism to slide back and forth along the guide rail 4.

[0069] This embodiment provides a driving device and a transmission mechanism to drive the pushing mechanism to push the liquid bottle, which can reduce the operations required by medical staff during use. When the driving device or the transmission mechanism fails to work due to an emergency, the medical staff can still choose to manually trigger the liquid bottle puncture device to prevent accidents.

[0070] like Fig.14 and Fig.15 As shown, in this embodiment, a motor is used as a driving device 24 to provide a power source for the movement of the pushing mechanism. The first slider 5 and the second slider 18 are interactively connected to the guide rail 4, but there is no rigid restriction. The first slider 5 and the second slider 18 can also be slidably connected to different guide rails respectively, as long as other mechanisms can work normally.

[0071] In this embodiment, the transmission mechanism 25 includes a synchronous pulley and a lead screw, and the transmission mechanism 25 is used to convert the rotational motion of the motor into the linear motion of the second slider 18. Fig.14 As shown, the synchronous pulley includes a driving wheel 25-1, a driven wheel 25-2 and a synchronous belt 25-3. The driving wheel 25-1 is connected to the output end of the motor, and the synchronous belt 25-3 is installed between the driving wheel 25-1 and the driven wheel 25-2, so that the driving wheel 25-1 and the driven wheel 25-2 rotate synchronously; the lead screw includes a lead screw 25-4 and a lead screw nut 25-5. The lead screw 25-4 is arranged parallel to the guide rail 4, and the driven wheel 2 5-2 is fixedly connected to the lead screw 25-4, the lead screw 25-4 and the lead screw nut 25-5 are threadedly connected, and the lead screw nut 25-5 is fixedly connected to the first slider 5. The motor drives the active wheel 25-1 to rotate, thereby driving the synchronous belt 25-3 and the lead screw 25-4 to rotate synchronously, so that the lead screw nut 25-5 can reciprocate up and down along the lead screw 25-4, driving the second slider 18 to reciprocate up and down along the guide rail 4.

[0072] The driving device 24 and the transmission mechanism 25 can be replaced by other structures with the same functions, such as motor direct drive, or gear and screw coordinated transmission.

[0073] In this embodiment, the liquid bottle piercing device is close to a switch, and the proximity switch is installed on the substrate and is used to obtain the position information of the pushing mechanism to control the operation of the liquid bottle piercing device.

[0074] like Fig.14 and Fig.16 As shown, in this embodiment, the proximity switch specifically includes a first proximity switch 21 and a second proximity switch 22, and the first proximity switch 21 and the second proximity switch 22 are both installed on the substrate 1, and are used to obtain the position information of the pushing mechanism. When the pushing mechanism is at the origin position, the first proximity switch 21 is triggered, and when the pushing mechanism pushes the support seat 2 to be at the third position, the second proximity switch 22 is triggered, wherein the third position is any preset position that can reliably connect the liquid bottle 3 and the puncture needle 16. It should be noted that the first proximity switch 21 is triggered by the pushing mechanism, and the second proximity switch 22 is triggered by the support seat 2 or the first slider 5. The pushing mechanism drives the support seat 2 or the first slider 5 to slide along the guide rail by pushing the bottom of the liquid bottle. When the support seat 2 is at the third position, the second proximity switch 22 is triggered by the support seat 2 or the first slider 5.

[0075] In this embodiment, the third position of the support seat 2 can be set in two ways. One is to set the third position between the second position and the first position. At this time, the working process of liquid bottle puncture is:

[0076] (1) Connection between liquid bottle and puncture needle:

[0077] Initially, the medical staff places the liquid bottle 3 on the supporting seat 2, and the supporting seat 2 is at the first position;

[0078] The driving device drives the pushing mechanism to move toward the direction close to the puncture needle seat 16, thereby pushing the supporting seat 2 to move, and also driving the first slider 5 to approach the puncture mechanism along the guide rail 4. When the supporting seat 2 moves to the third position, the signal of the second proximity switch 22 is triggered, the driving device stops driving the pushing mechanism, and the liquid bottle and the puncture needle complete the connection process.

[0079] (2) Separation of the liquid bottle and the puncture needle:

[0080] The driving device drives the pushing mechanism in reverse until the first proximity switch 21 is triggered, and the supporting seat 2 is restored to the first position under the action of the spring 8 in the reset mechanism, thus completing the separation operation.

[0081] In this process, the self-locking mechanism does not need to be self-locking, and the energized holding force of the driving device can overcome the reset force of the spring 8 in the reset mechanism.

[0082] The second is to set the third position below the second position, and when the supporting seat 2 is at the third position, the swing arm just reaches the second swing position, and the working process of the liquid bottle puncture is: At this time, the working process of the liquid bottle puncture device is:

[0083] (1) Connection between liquid bottle and puncture needle:

[0084] Initially, after the medical staff has placed the liquid bottle 3, the support seat 2 is located at the first position, the driving device is turned on, and the pushing mechanism is driven to move in the direction close to the puncture needle seat 16, thereby pushing the support seat 2 to move, and also driving the first slider 5 to approach the puncture mechanism along the guide rail 4. When the support seat 2 moves to the third position, the signal of the second proximity switch 22 is triggered, the driving device stops driving the pushing mechanism, and the liquid bottle 3 and the puncture needle 17 complete the connection process;

[0085] (2) Separation of the liquid bottle and the puncture needle:

[0086] The driving device drives the pushing mechanism to retreat, at which time the supporting seat 2 retreats to the second position, and the self-locking mechanism completes self-locking;

[0087] The pushing mechanism is driven again to move in the direction close to the puncture needle seat 16 until the supporting seat 2 is pushed to the third position. At this time, the signal of the second proximity switch 22 is triggered, and the driving device drives the pushing mechanism to retreat until the first proximity switch 21 is triggered. The supporting seat 2 will retreat to the first position together with the pushing mechanism. At this time, the liquid bottle 3 is separated from the puncture needle 17, and the principle is the same as that in Example 1.

[0088] It should be noted that the operation method of the liquid bottle piercing device is determined by the installation position of the proximity switch. Different operation methods can also be formulated according to the position of the pushing mechanism obtained by the proximity switch, and the principle is the same as that of the present invention.

[0089] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0090] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0091] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. A liquid bottle puncturing device, characterized in that: It includes a base plate, a supporting seat, a sliding mechanism, a puncture mechanism and a self-locking mechanism; The sliding mechanism is installed on one side of the base plate, the puncture mechanism is installed on the other side of the base plate, the support seat is installed on the sliding mechanism, the support seat and the puncture mechanism are installed in parallel and perpendicular to the base plate, and the self-locking mechanism is installed between the sliding mechanism and the base plate; The sliding mechanism can make the support seat approach or move away from the puncture mechanism along the axis, and the axis is a straight line passing through the center of the support seat and the center of the puncture mechanism, and is perpendicular to the plane where the support seat and the puncture mechanism are located; The support seat is used to place the liquid bottle. The support seat is close to the puncture mechanism until the puncture mechanism punctures the liquid bottle, and the self-locking mechanism is locked to keep the relative positions of the support seat and the puncture mechanism unchanged; after the self-locking mechanism is unlocked, the support seat can be away from the puncture mechanism.

2. The liquid bottle piercing device according to claim 1, characterized in that: The sliding mechanism comprises a guide rail and a first sliding block, wherein the guide rail is fixedly connected to the base plate, the first sliding block is slidably connected to the guide rail, and the supporting seat is detachably connected to the first sliding block.

3. The liquid bottle piercing device according to claim 2, characterized in that: The self-locking mechanism comprises a first lock body, a second lock body and a reset mechanism, wherein the first lock body and the second lock body can cooperate to lock or separate to unlock; The reset mechanism includes a guide column, a limit platform and a spring. The guide column is installed on the base plate parallel to the guide rail. The limit platform is installed on the top of the guide column. The first lock body is installed on the first slider. The first slider is provided with a through hole and is sleeved on the guide column through the through hole and is located below the limit platform. The spring is sleeved on the guide column and abuts between the bottom of the guide column and the first slider. The second lock body is fixedly connected to the base plate. During the sliding process of the first lock body driven by the first slider, the first lock body and the second lock body can automatically cooperate to lock or automatically separate to unlock.

4. The liquid bottle piercing device according to claim 3, characterized in that: The first lock body comprises a first lock body main body and a swing arm, and the second lock body comprises a second lock body main body and a hook; The first lock body is mounted on the first slider, the swing arm is hinged on the first lock body, the second lock body is mounted on the base plate, and the hook is fixedly connected to the second lock body for cooperating with the swing arm to limit the sliding of the first lock body and realize the locking and unlocking of the self-locking mechanism; The swing arm can only swing between a first swing position and a second swing position with the hinge point as the axis, wherein the angle between the second swing position and the horizontal plane is smaller than that between the first swing position, and the motion trajectory of the swing arm includes a swing locking position, wherein the swing locking position is located between the first swing position and the second swing position, and the swing arm has the following motion characteristics: Initially, the swing arm is located at the first swing position, and the swing arm is in a free state; When the swing arm is in a free state, it can swing between a first swing position and a second swing position. When the swing arm reaches the second swing position in the free state, the swing arm switches to a locked state. When the swing arm is in the locked state, it can swing between the second swing position and the swing locking position; when the swing arm reaches the second swing position when in the locked state, the swing arm switches to the free state; When the swing arm is in the first swing position, the first lock body can slide; during the sliding process of the first lock body, the swing arm can contact the second lock body body, and then swing under the constraint of the contour line of the second lock body body; when the swing arm is in the locking position and the swing arm cooperates with the hook, the first slider cannot slide.

5. The liquid bottle piercing device according to claim 3, characterized in that: A buckle for detachably connecting with the first slider is arranged on one side of the supporting seat, and a through hole for installing the liquid bottle is arranged at the center of the supporting seat, and the through hole penetrates on the side away from the buckle to form a gap.

6. The liquid bottle piercing device according to claim 1, characterized in that: The puncture mechanism comprises a puncture needle seat and a puncture needle. The puncture needle seat is installed on the base plate perpendicularly to the base plate, and the puncture needle is installed at the center of the puncture needle seat perpendicularly to the puncture needle seat, with the needle head pointing to the supporting seat.

7. The liquid bottle piercing device according to claim 2, characterized in that: It also includes a pushing mechanism, which includes a second slider, a pushing plate and a buffer pad; The second sliding block is slidably connected to the guide rail, the push plate is connected to the second sliding block, and the buffer pad is installed on a side of the push plate close to the supporting seat.

8. The liquid bottle piercing device according to claim 7, characterized in that: It also includes a driving device and a transmission mechanism, wherein the driving device is in transmission connection with the transmission mechanism, and the transmission mechanism is in transmission connection with the pushing mechanism; under the transmission action of the transmission mechanism, the driving device can drive the pushing mechanism to slide back and forth along the guide rail.

9. The liquid bottle piercing device according to claim 8, characterized in that: It also includes a proximity switch, which is installed on the substrate and is used to obtain the position information of the pushing mechanism.

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