Transfusion alarm

Abstract

The utility model relates to the technical field of medical instruments, in particular to an infusion alarm. Comprising a fixing shell, a first display lamp is fixed to the top of one end of the front face of the fixing shell, a second display lamp is fixed to the position, located at the bottom of the first display lamp, of the front face of the fixing shell, and a third display lamp is fixed to the top of the other end of the front face of the fixing shell; a main switch is arranged at the bottom of the other end of the front surface of the fixed shell; a control circuit board is arranged in the fixing shell, and the first display lamp, the second display lamp, the third display lamp, the infusion alarm switch and the main switch are all connected with the control circuit board. According to the infusion alarm provided by the utility model, through the matching of the fixed shell and the display lamp, the infusion alarm can detect the infusion of a patient during use, and when no liquid medicine exists in an infusion tube, the infusion alarm gives an alarm to prompt medical personnel and the patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an infusion alarm. Background Art

[0002] The promotion of intravenous infusion technology has greatly improved the efficiency of clinical treatment. In the influenza season, collective physical discomfort, and natural disasters, intravenous infusion can alleviate the symptoms.

[0003] Medical PDA, also known as medical RFID UHF handheld device, is a data collection, storage and transmission device specially designed for medical hospitalization management, mobile medical care and nursing reminders. Through PDA, information about patients, medicines and materials is collected, relevant information is stored, and information is transmitted to the database center in real time with the help of wireless network. It can accurately associate people with objects, improve the service quality of the medical industry, realize paperless office throughout the process and ensure the accuracy and timeliness of data.

[0004] At present, medical PDA has gradually become popular in large hospitals. As nursing PDA is used more and more frequently, the workload and complexity of ward management are also increasing, and the response time to patients' conditions is also required to be higher than before. There are more and more problems encountered during use, and more and more requirements are placed on medical PDAs, and more and more functions are required to be realized. However, the functions of the existing technology are relatively single, which brings inconvenience to users. Traditional medical PDAs still have various problems and are difficult to meet the needs of actual use.

[0005] For example, the patent (CN114366020B) discloses a portable multifunctional medical PDA handheld device, which includes: a PDA body, which includes a hollow shell 1, a control component arranged in the shell 1, a touch operation panel and a key component 1 arranged on the front wall of the shell 1, a key component 2 arranged on a side wall of the shell 1, and a QR code scanning head and a flashlight, a temperature measurement probe, and a camera component arranged on the top of the shell 1, which are electrically connected to the control component respectively; a portable multifunctional medical PDA handheld device is provided, which integrates functions such as blood pressure measurement, finger pulse oxygen, and blood vessel imaging into the integrated design of the medical PDA, which can not only greatly reduce the number of items carried by medical staff, but also effectively improve the work efficiency of medical staff;

[0006] For example, the patent (CN219332783U) discloses an infusion alarm, including a shell and a clamp. The shell is composed of two half shells, one side of the two half shells is hinged, and the other side of the two half shells is snap-connected. The middle of the two half shells is provided with a channel for wrapping the infusion tube; the inside of the shell is provided with a controller and an induction sensor electrically connected to each other, the induction sensor is used to detect the liquid in the infusion tube, and generate a detection signal to send to the controller, and the controller is used to transmit the detection signal; the clamp is used to clamp the shell. Compared with the prior art, this alarm can promptly transmit the message that the infusion is about to be completed to medical staff, but it will not affect the patient's rest, relieve the patient's tension during the infusion process, and will not cause danger;

[0007] When using the above technology, it is found that the prior art has the following technical problems: the existing alarm is not fixed firmly enough when in use. Therefore, an infusion alarm is designed to provide another technical solution to the above technical problem. Utility Model Content

[0008] Based on this, it is necessary to provide an infusion alarm to address the above technical problems, so as to solve the technical problem that the existing alarm is not fixed firmly enough during use.

[0009] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0010] An infusion alarm comprises a fixed shell, a first display light is fixed to the top of one front end of the fixed shell, a second display light is fixed to the front of the fixed shell and located below the first display light, a third display light is fixed to the top of the other front end of the fixed shell, a buzzer alarm is fixed inside the fixed shell, an infusion alarm switch is provided at the bottom of one front end of the fixed shell, and a main switch is provided at the bottom of the other front end of the fixed shell.

[0011] As a preferred embodiment of the infusion alarm provided by the utility model, a control circuit board is arranged inside the fixed shell, and the first display light, the second display light, the third display light, the infusion alarm switch and the main switch are all connected to the control circuit board.

[0012] As a preferred embodiment of the infusion alarm provided by the utility model, an infusion tube positioning groove is provided on the back of the fixed shell, a liquid detection module is fixed inside the fixed shell and at a position corresponding to the infusion tube positioning groove, and the liquid detection module is electrically connected to the control circuit board.

[0013] As a preferred embodiment of the infusion alarm provided by the utility model, a rotating shaft is fixed to the back of the fixed shell, a positioning baffle is rotatably connected to the outer side of the rotating shaft, and a torsion spring is arranged between the positioning baffle and the rotating shaft.

[0014] As a preferred embodiment of the infusion alarm provided by the utility model, a connecting frame is bolted to one side of the fixed shell, a protective shell is arranged on one side of the connecting frame and at one end of the fixed shell, a positioning mechanism is installed on the protective shell, the positioning mechanism comprises a displacement plate, a first connecting block, a second connecting block, an extrusion plate, a first anti-slip pad, a second protective pad, a synchronization block and a rotating plate, a displacement plate is slidably connected to the inside of the protective shell, a first connecting block is fixed to one side of the displacement plate and at the top and bottom near one end of the fixed shell, the first connecting block is slidably connected to the protective shell, an extrusion plate is fixed to one end of the first connecting block away from the displacement plate, a second connecting block is fixed to the other side of the displacement plate and at the top and bottom near one end of the fixed shell, the second connecting block is rotatably connected to the rotating plate near the top of one end of the extrusion plate, a synchronization block is fixed to the bottom of the rotating plate near one end of the extrusion plate, and the synchronization block is slidably connected to the extrusion plate, a second protective pad is fixed to one end of the extrusion plate near the protective shell, and a first anti-slip pad is fixed to one end of the protective shell and at a position corresponding to the second protective pad.

[0015] As a preferred embodiment of the infusion alarm provided by the utility model, a displacement assembly for driving the displacement plate to move is installed on the protective shell, and the displacement assembly includes a rotating shaft, a rotating handle, an adjusting shaft, a first adjusting bevel gear, a second adjusting bevel gear and a threaded section. The internal rotation of the protective shell is connected with the adjusting shaft, and a threaded section is provided at one end of the outer side of the adjusting shaft close to the extrusion plate. The outer side of the threaded section is threadedly connected to the displacement plate, and the internal rotation of the top of the protective shell is connected with the rotating shaft, and the first adjusting bevel gear is fixed to the bottom of the rotating shaft, and the bottom of the first adjusting bevel gear is meshed with the second adjusting bevel gear, and the second adjusting bevel gear is fixed to the outside of the adjusting shaft, and the rotating handle is fixed to the top of the rotating shaft.

[0016] As a preferred embodiment of the infusion alarm provided by the utility model, the internal thread of one end of the rotating handle is connected with a positioning screw, and the outer side of the bottom end of the positioning screw is slidably connected to the protective shell.

[0017] As a preferred embodiment of the infusion alarm provided by the utility model, an adjusting mechanism for driving the protective shell to move is installed inside the connecting frame, and the adjusting mechanism includes a driving shaft, a displacement gear, a displacement motor, a displacement worm, a displacement worm wheel and a displacement block. The connecting frame is slidably connected to the displacement block, and the displacement block is fixed to the protective shell. The displacement block is rotatably connected to the driving shaft inside, and the top and bottom of the driving shaft are fixed with displacement gears, and the displacement gear is meshed with the connecting frame. The displacement motor is fixed inside the displacement block, and the output end of the displacement motor is connected to the displacement worm, and one side of the displacement worm is meshed with a displacement worm wheel, and the displacement worm wheel is located on the outside of the driving shaft.

[0018] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0019] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0020] The utility model provides an infusion alarm, which can detect the infusion of patients when in use through the cooperation of a fixed shell and a display light. When there is no liquid medicine in the infusion tube, an alarm is sounded to remind medical staff and patients.

[0021] Through the cooperation of the positioning mechanism and the adjusting mechanism, the fixed shell can be clamped on the patient's bedside or the infusion stand, so as to prevent the infusion tube from being affected by the dead weight of the fixed shell. At the same time, through the cooperation of the first anti-slip pad and the second protective pad in the positioning mechanism, it can have a better fixing effect when clamped on the patient's bedside or the infusion stand, and the distance between the protective shell and the fixed shell can be adjusted through the cooperation of the displacement gear and the displacement block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0024] Figure 2 This is a structural schematic diagram of the infusion tube positioning groove of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0026] Figure 4This is a schematic diagram of the internal structure of the connecting frame of the utility model;

[0027] Figure 5 This is a schematic diagram of the internal structure of the protective shell of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the protective shell of the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the second protective pad of the utility model;

[0030] Figure 8 It is a structural schematic diagram of the rotating plate of the utility model;

[0031] Fig. 9 It is a schematic diagram of the internal structure of the displacement block of the utility model.

[0032] In the figure: 1. fixed shell; 2. first display light; 3. second display light; 4. third display light; 5. infusion alarm switch; 6. main switch; 7. infusion tube positioning groove; 8. positioning baffle; 9. connecting frame; 10. protective shell; 11. rotating shaft; 12. rotating handle; 13. positioning screw; 14. adjusting shaft; 15. first adjusting bevel gear; 16. second adjusting bevel gear; 17. threaded section; 18. displacement plate; 19. first connecting block; 20. second connecting block; 21. extrusion plate; 22. first anti-skid pad; 23. second protective pad; 24. synchronization block; 25. rotating plate; 26. driving shaft; 27. displacement gear; 28. displacement motor; 29. ​​displacement worm; 30. displacement worm wheel; 31. displacement block. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] Embodiment 1

[0038] Reference Figure 1-Figure 2 , an infusion alarm, comprising a fixed shell 1, a first display light 2 is fixed on the top of one end of the front side of the fixed shell 1, the first display light 2 lights up to indicate that the monitoring state has been entered, and the first display light 2 may be a green light at this time, a second display light 3 is fixed on the front side of the fixed shell 1 and located at the bottom of the first display light 2, the second display light 3 lights up to indicate that the liquid infusion is completed, and the first display light 2 may be a red light at this time, a third display light 4 is fixed on the top of the other end of the front side of the fixed shell 1, the third display light 4 lights up to indicate that the connection with the medical PDA is successful, and the first display light 2 may be a yellow light at this time, a buzzer alarm is fixed inside the fixed shell 1, and the buzzer alarm can alert patients and medical staff, and the buzzer alarm sounds when the second display light 3 lights up;

[0039] An infusion alarm switch 5 is provided at the bottom of one end of the front of the fixed shell 1, so that the infusion alarm switch 5 is reset by pressing the button to enter the infusion monitoring and stop alarm state, and a main switch 6 is provided at the bottom of the other end of the front of the fixed shell 1, so that the alarm can be turned off or on by lightly pressing the main switch 6. A control circuit board is provided inside the fixed shell 1, and the first display light 2, the second display light 3, the third display light 4, the infusion alarm switch 5, and the main switch 6 are all connected to the control circuit board;

[0040] An infusion tube positioning groove 7 is provided on the back of the fixed shell 1, and a liquid detection module is fixed inside the fixed shell 1 and at a position corresponding to the infusion tube positioning groove 7, and the liquid detection module is electrically connected to the control circuit board. The infusion tube located inside the infusion tube positioning groove 7 is detected by the liquid detection module to detect whether there is liquid inside the infusion tube, so that when the liquid detection module does not detect liquid inside the infusion tube, it can give a signal to the control circuit board, so that the control circuit board controls the second display light 3 to light up and the buzzer alarm to work. A rotating shaft is fixed on the back of the fixed shell 1, and a positioning baffle 8 is rotatably connected to the outer side of the rotating shaft. A torsion spring is arranged between the positioning baffle 8 and the rotating shaft, so that when the positioning baffle 8 rotates, the infusion tube positioning groove 7 is opened to store force on the torsion spring, and then the positioning baffle 8 is reset when the positioning baffle 8 is released;

[0041] In this embodiment, the liquid detection module is an existing device, specifically a photoelectric liquid level sensor, model LLC200D3, which is used to detect whether liquid is contained and has mature applications, so this embodiment will not be described in detail.

[0042] In this embodiment, when the patient starts to receive infusion, the medical PDA is first used to connect the alarm system, and then the alarm is placed in an appropriate position. At the same time, the infusion tube is located on the inner side of the infusion tube positioning groove 7, and then the infusion is started. When the liquid detection module does not detect liquid inside the infusion tube, a signal is given to the control circuit board, so that the control circuit board controls the second display light 3 to light up and the buzzer alarm to work. At the same time, it is linked to the medical PDA to automatically complete the steps of infusion completion and record it. Compared with the previous infusion alarm, the human-based infusion alarm has added the function of being able to link with the medical PDA system, which reduces the time spent by nursing staff when using the medical PDA to replace the liquid.

[0043] The use process of the infusion alarm provided by the utility model is as follows: when in use, pull the positioning baffle 8 to allow the positioning baffle 8 to rotate on the outside of the rotating shaft. At the same time, the rotation of the positioning baffle 8 on the outside of the rotating shaft drives the torsion spring to store force, and then the infusion tube is placed on the inner side of the infusion tube positioning groove 7, and the pulled positioning baffle 8 is released to allow the positioning baffle 8 to reset the position of the infusion tube on the inner side of the infusion tube positioning groove 7, and then the inside of the infusion tube is detected through the liquid detection module. When no liquid is detected inside the infusion tube, a signal is given to the control circuit board, so that the control circuit board controls the second display light 3 to light up and the buzzer alarm works to prompt medical staff and patients.

[0044] Embodiment 2

[0045] Reference Figure 3-Figure 9 , an infusion alarm, a connecting frame 9 is bolted to one side of a fixed shell 1, a protective shell 10 is arranged on one side of the connecting frame 9 and at one end of the fixed shell 1, a positioning mechanism is installed on the protective shell 10, and the protective shell 10 is fixed to the bedside or the infusion stand by the positioning mechanism, the positioning mechanism includes a displacement plate 18, a first connecting block 19, a second connecting block 20, an extrusion plate 21, a first anti-slip pad 22, a second protective pad 23, a synchronization block 24 and a rotating plate 25, the interior of the protective shell 10 is slidably connected with the displacement plate 18, a first connecting block 19 is fixed to one side of the displacement plate 18 and the top and bottom near one end of the fixed shell 1 are fixed, the first connecting block 19 is slidably connected to the protective shell 10, and an extrusion plate 21 is fixed to the end of the first connecting block 19 away from the displacement plate 18, so that the movement of the displacement plate 18 drives the extrusion plate 21 to move through the first connecting block 19;

[0046] A second connecting block 20 is fixed to the top and bottom of the other side of the displacement plate 18 and located near one end of the fixed shell 1. The second connecting block 20 is rotatably connected to the top of the extrusion plate 21 near the end thereof. A synchronous block 24 is fixed to the bottom of the extrusion plate 21 near the end thereof. The synchronous block 24 is slidably connected to the extrusion plate 21, so that the movement of the second connecting block 20 drives the extrusion plate 21 to move through the rotating plate 25 and the synchronous block 24. At the same time, the bedside column or the infusion stand can be connected to the extrusion plate 21 through the second connecting block 20. 1 enters between the extrusion plate 21 and the protective shell 10, and a second protective pad 23 is fixed to one end of the extrusion plate 21 close to the protective shell 10, and a first anti-skid pad 22 is fixed to one end of the protective shell 10 and at a position corresponding to the second protective pad 23. The first anti-skid pad 22 and the second protective pad 23 are both made of rubber, so that the first anti-skid pad 22 and the second protective pad 23 can be deformed under extrusion, and at the same time, the first anti-skid pad 22 and the second protective pad 23 provide the protective shell 10 with stability and anti-skid when clamped on the outside of the bedside column or the infusion stand;

[0047] A displacement assembly for driving the displacement plate 18 to move is installed on the protective shell 10, and the displacement assembly includes a rotating shaft 11, a rotating handle 12, a positioning screw 13, an adjusting shaft 14, a first adjusting bevel gear 15, a second adjusting bevel gear 16 and a threaded section 17. The internal rotation of the protective shell 10 is connected with the adjusting shaft 14, and a threaded section 17 is provided at one end of the outer side of the adjusting shaft 14 close to the extrusion plate 21. The outer side of the threaded section 17 is threadedly connected with the displacement plate 18, so that the displacement plate 18 is driven to move inside the protective shell 10 through the rotation of the threaded section 17. The internal rotation of the top of the protective shell 10 is connected with the rotating shaft 11, and the first adjusting bevel gear 15 is fixed at the bottom of the rotating shaft 11. The bottom of the first adjusting bevel gear 15 is meshed and connected with the second adjusting bevel gear 16, and the second adjusting bevel gear 16 is fixed on the outer side of the adjusting shaft 14, so that the rotation of the second adjusting bevel gear 16 drives the adjusting shaft 14 to rotate, and the top of the rotating shaft 11 is fixed with a rotating handle 12, so that the rotating shaft 11 is driven to rotate by manually driving the rotating handle 12;

[0048] The internal thread at one end of the rotating handle 12 is connected with a positioning screw 13, so that the height of the positioning screw 13 can be controlled by driving the positioning screw 13 to rotate. The outer side of the bottom end of the positioning screw 13 is slidably connected to the protective shell 10. Positioning holes are evenly distributed inside the top end of the protective shell 10 and at positions corresponding to the positioning screw 13. The outer side of the bottom end of the positioning screw 13 is slidably connected to the positioning holes, so that when the bottom of the positioning screw 13 is located inside the protective shell 10, the rotation of the rotating handle 12 can be limited.

[0049] An adjusting mechanism for driving the protective shell 10 to move is installed inside the connecting frame 9, and the adjusting mechanism includes a driving shaft 26, a displacement gear 27, a displacement motor 28, a displacement worm 29, a displacement worm wheel 30 and a displacement block 31. The displacement block 31 is slidably connected to the inside of the connecting frame 9, and the displacement block 31 is fixed to the protective shell 10, so that the movement of the displacement block 31 drives the protective shell 10 to move, and the internal rotation of the displacement block 31 is connected to the driving shaft 26, and the top and bottom of the driving shaft 26 are fixed with displacement gears 27, and the displacement gear 27 is meshed with the connecting frame 9, so that the rotation of the driving shaft 26 drives the displacement gear 27 to rotate, and through the fixation of the connecting frame 9, the displacement gear 27 drives the displacement block 31 to move, and the displacement motor 28 is fixed inside the displacement block 31, and the output end of the displacement motor 28 is connected to the displacement worm 29, and one side of the displacement worm 29 is meshed with the displacement worm wheel 30, and the displacement worm wheel 30 is located on the outside of the driving shaft 26, so that the rotation of the displacement worm wheel 30 drives the driving shaft 26 to rotate.

[0050] The use process of the infusion alarm provided by the utility model is as follows: when in use, one end of the rotating plate 25 is lifted upwards to allow the rotating plate 25 and the synchronous block 24 to be separated from the extrusion plate 21, and then the bedside column or the infusion stand is allowed to enter between the extrusion plate 21 and the protective shell 10 through the gap between the second connecting block 20 and the extrusion plate 21, so that the bedside column or the infusion stand is close to the first anti-slip pad 22, and then the rotating plate 25 is pulled to allow the rotating plate 25 to drive the synchronous block 24 to reset, and then the positioning screw 13 is rotated to allow the positioning screw 13 to rise inside the rotating handle 12, and at the same time, the bottom of the positioning screw 13 is separated from the slidingly connected protective shell 10, and then the rotating handle 12 is held by hand with The rotating handle 12 is rotated, and the rotation of the rotating handle 12 drives the second adjusting bevel gear 16 to rotate through the rotating shaft 11 and the first adjusting bevel gear 15, and the second adjusting bevel gear 16 drives the threaded section 17 to rotate through the adjusting shaft 14, and the rotation of the threaded section 17 drives the displacement plate 18 connected to the outer thread to move, so that the movement of the displacement plate 18 drives the first connecting block 19 and the second connecting block 20 to move, and then drives the extrusion plate 21 to move, and the movement of the extrusion plate 21 drives the second protective pad 23 to move, so that the second protective pad 23 and the first anti-slip pad 22 are deformed according to the shape of the bedside column or the infusion stand, and are positioned on the outside of the bedside column or the infusion stand;

[0051] Then, as needed, the displacement motor 28 is powered by an external power supply to drive the displacement worm 29 to rotate, and the rotation of the displacement worm 29 drives the drive shaft 26 to rotate through the meshing displacement worm wheel 30, and the rotation of the drive shaft 26 drives the displacement gear 27 to rotate, and through the fixation of the connecting frame 9, the displacement gear 27 drives the displacement block 31 to move, and then the displacement block 31 drives the protective shell 10 to move, so as to adjust the distance between the extrusion plate 21 on the protective shell 10 and the fixed shell 1.

[0052] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An infusion alarm, characterized in that: The invention comprises a fixed shell (1), wherein a first display light (2) is fixed to the top of one front end of the fixed shell (1), a second display light (3) is fixed to the front of the fixed shell (1) and located at the bottom of the first display light (2), a third display light (4) is fixed to the top of the other front end of the fixed shell (1), a buzzer alarm is fixed inside the fixed shell (1), an infusion alarm switch (5) is arranged at the bottom of one front end of the fixed shell (1), and a main switch (6) is arranged at the bottom of the other front end of the fixed shell (1).

2. The infusion alarm according to claim 1, characterized in that: A control circuit board is arranged inside the fixed shell (1); the first display light (2), the second display light (3), the third display light (4), the infusion alarm switch (5) and the main switch (6) are all connected to the control circuit board.

3. The infusion alarm according to claim 2, characterized in that: The back of the fixed shell (1) is provided with an infusion tube positioning groove (7), and a liquid detection module is fixed inside the fixed shell (1) at a position corresponding to the infusion tube positioning groove (7), and the liquid detection module is electrically connected to the control circuit board.

4. The infusion alarm according to claim 1, characterized in that: A rotating shaft is fixed on the back of the fixed shell (1), a positioning baffle (8) is rotatably connected to the outer side of the rotating shaft, and a torsion spring is provided between the positioning baffle (8) and the rotating shaft.

5. The infusion alarm according to claim 1, characterized in that: A connecting frame (9) is bolted to one side of the fixed shell (1); a protective shell (10) is arranged on one side of the connecting frame (9) and located at one end of the fixed shell (1); a positioning mechanism is installed on the protective shell (10); the positioning mechanism comprises a displacement plate (18), a first connecting block (19), a second connecting block (20), an extrusion plate (21), a first anti-slip pad (22), a second protective pad (23), a synchronization block (24) and a rotating plate (25); the interior of the protective shell (10) is slidably connected with the displacement plate (18); a first connecting block (19) is fixed to one side of the displacement plate (18) and located at the top and bottom of one end close to the fixed shell (1); the first connecting block (19) is slidably connected to the protective shell (10); An extrusion plate (21) is fixed to one end of the first connection block (19) away from the displacement plate (18); a second connection block (20) is fixed to the top and bottom of the other side of the displacement plate (18) and located near one end of the fixed shell (1); a rotating plate (25) is rotatably connected to the top of the second connection block (20) near one end of the extrusion plate (21); a synchronization block (24) is fixed to the bottom of the rotating plate (25) near one end of the extrusion plate (21), and the synchronization block (24) is slidably connected to the extrusion plate (21); a second protective pad (23) is fixed to one end of the extrusion plate (21) near the protective shell (10); and a first anti-slip pad (22) is fixed to one end of the protective shell (10) and at a position corresponding to the second protective pad (23).

6. The infusion alarm according to claim 5, characterized in that: The protective shell (10) is provided with a displacement assembly for driving the displacement plate (18) to move. The displacement assembly comprises a rotating shaft (11), a rotating handle (12), an adjusting shaft (14), a first adjusting bevel gear (15), a second adjusting bevel gear (16) and a threaded section (17). The adjusting shaft (14) is rotatably connected inside the protective shell (10). An end of the outer side of the adjusting shaft (14) close to the extrusion plate (21) is provided with a threaded section (17). The outer side of the threaded section (17) is threadedly connected to the displacement plate (18). The top of the protective shell (10) is rotatably connected inside with the rotating shaft (11). The first adjusting bevel gear (15) is fixed at the bottom of the rotating shaft (11). The bottom of the first adjusting bevel gear (15) is meshingly connected with the second adjusting bevel gear (16). The second adjusting bevel gear (16) is fixed to the outer side of the adjusting shaft (14). The rotating handle (12) is fixed at the top of the rotating shaft (11).

7. The infusion alarm according to claim 6, characterized in that: A positioning screw (13) is connected to the internal thread of one end of the rotating handle (12), and the outer side of the bottom end of the positioning screw (13) is slidably connected to the protective shell (10).

8. The infusion alarm according to claim 5, characterized in that: An adjusting mechanism for driving the protective shell (10) to move is installed inside the connecting frame (9), and the adjusting mechanism comprises a driving shaft (26), a displacement gear (27), a displacement motor (28), a displacement worm (29), a displacement worm wheel (30) and a displacement block (31). The displacement block (31) is slidably connected inside the connecting frame (9), and the displacement block (31) is fixed to the protective shell (10). The driving shaft (26) is rotatably connected inside the displacement block (31). The top and bottom of the driving shaft (26) are both fixed with displacement gears (27), and the displacement gear (27) is meshingly connected to the connecting frame (9). The displacement motor (28) is fixed inside the displacement block (31), and the output end of the displacement motor (28) is connected with a displacement worm (29). One side of the displacement worm (29) is meshingly connected with a displacement worm wheel (30), and the displacement worm wheel (30) is located outside the driving shaft (26).

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