Injection pump for subcutaneous injection of medicine

Abstract

The invention relates to the technical field of medical equipment, in particular to an injection pump for medicine subcutaneous injection, which comprises an infusion pump, a buckle is fixedly connected to one side of the infusion pump, a belt is detachably connected between two ends of the buckle, an insulin tube is detachably connected to the inner side of the infusion pump, and a support plate is fixedly connected to one side of the infusion pump. A rotating part is rotatably connected to the top of the supporting plate, a liquid storage bin is rotatably clamped to one side of the rotating part, an injection line pipe is connected to the outer surface of the liquid storage bin in a penetrating mode, a fixing part is rotatably connected to one side of the liquid storage bin, the bottom of the fixing part is matched with the top of the fixing part in an inserted mode, and a rotary knob is slidably connected to the side, away from the fixing part, of the liquid storage bin; when a rotary knob is pulled out forwards, a first spring can drive a liquid storage bin to rotate, redundant injection line pipes can be connected to the outer surface of the liquid storage bin in a winding mode, and therefore the injection line pipes can be stored and prevented from being damaged by the external environment, and the injection line pipes can smoothly convey medicine.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to an injection pump for subcutaneous injection of medicine. Background Art

[0002] In the medical field, syringe pumps are widely used to inject various liquid medicines, blood, etc. into the human body. When using a syringe pump for injection, the drug can be infused into the patient's body at a constant rate according to the preset program, so that the drug reaches the ideal concentration in the body and avoids adverse reactions caused by concentration fluctuations. In addition, a specific infusion time can be set for the infusion pump so that the drug can be started and ended at the required time point, making the injection more convenient.

[0003] When using an injection pump for injection, patients are prone to twisting or bending the infusion pump during daily activities, which increases the resistance to drug flow and slows down the drug flow rate. This makes it impossible for the drug to be completely infused into the patient's body within the scheduled time, thereby affecting the treatment effect. In addition, when the injection line tube is twisted, it will change the pressure distribution in the pipeline, causing the infusion pump's pressure sensor to misread, thereby affecting the stable operation of the infusion pump.

[0004] Therefore, the present invention provides an injection pump for subcutaneous injection of medicine to make up for and improve the shortcomings of the prior art. Summary of the invention

[0005] In view of the defects existing in the prior art, the present invention provides an injection pump for subcutaneous injection of drugs, which can effectively solve the above-mentioned technical problems.

[0006] The technical implementation scheme of the present invention is: an injection pump for subcutaneous injection of drugs, including an infusion pump, a buckle is fixedly connected to one side of the infusion pump, a belt is detachably connected between the two ends of the buckle, an insulin tube is detachably connected to the inner side of the infusion pump, a support plate is fixedly connected to one side of the infusion pump, a rotating part is rotatably connected to the top of the support plate, a liquid storage tank is rotatably connected to one side of the rotating part, an injection line tube is connected to the outer surface of the liquid storage tank, a fixing part is rotatably connected to one side of the liquid storage tank, the bottom of the fixing part is plugged into the top of the insulin tube, a knob is slidably connected to the side of the liquid storage tank away from the fixing part, and a pin is fixedly connected to the side of the knob close to the fixing part.

[0007] More preferably, a first spring is fixedly sleeved on the outer surface of one end of the fixing member, and the other end of the first spring is fixedly connected to one end of the liquid storage tank.

[0008] More preferably, a plurality of circular holes are provided in an annular shape on a side of the rotating member away from the fixing member, and a side of the latch away from the knob is snap-fitted with the annular circular holes on one side of the rotating member.

[0009] More preferably, the outer surface of the fixing member is fixedly connected to a fixing plate, one end of the fixing plate is rotatably connected to a threaded sleeve, the inner side of the threaded sleeve is threadedly connected to a screw, one end of the screw is slidably connected to the outer surface of one end of the fixing plate, the outer surface of one end of the threaded sleeve is fixedly connected to a gear, the outer surface of the gear is meshed with a toothed disk, the inner side of the toothed disk is fixedly connected to the outer surface of one end of the liquid storage tank, the inner side of the toothed disk is fixedly connected to the outer surface of the fixing member, one end of the screw is fixedly connected to a limiting block, and the inner side of the limiting block is slidably connected to the outer surface of the injection line tube.

[0010] More preferably, a fixing rod is fixedly connected to the outer surface of the fixing member, a protective ring is fixedly connected to one end of the fixing rod, and the inner side of the protective ring is sleeved on the outer surfaces of the toothed disc and the gear.

[0011] More preferably, the upper surface of one end of the support plate is fixedly connected to a fixing frame, one side of the top of the fixing frame is slidably connected to a limiting member, the outer surface of the top of the limiting member fits the outer surface of the injection line tube, the bottom of the outer surface of the injection line tube is squeezed and fit with the outer surface of the top of the limiting member, the outer surface of the bottom of the limiting member is fixedly sleeved with a second spring, and the top of the second spring is fixedly connected to the lower surface of the top of the fixing frame.

[0012] More preferably, a locking member is slidably connected to one side of the bottom of the limiting member, and a top side of the locking member is snap-connected to one side of the top of the fixing frame.

[0013] More preferably, a rotating rod is rotatably connected to one side of the upper surface of the support plate, an elastic sheet is fixedly connected to the top of the rotating rod, and an adhesive piece is fixedly connected to one end of the elastic sheet.

[0014] More preferably, a torsion spring is fixedly wound around the outer surface of the rotating rod, and the top of the torsion spring is fixedly connected to the bottom of the elastic sheet.

[0015] More preferably, a protective plate is fixedly connected to the upper surface of one side of the support plate.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention causes the first spring to drive the liquid storage bin to rotate when the knob is pulled forward, so that the redundant injection line tube can be wound around the outer surface of the liquid storage bin, thereby storing the injection line tube and protecting the injection line tube from damage by the external environment, so that the injection line tube can smoothly transport the drug, and can also prevent the injection line tube from being entangled with other equipment or objects, thereby avoiding interruption of infusion caused by the entanglement of the injection line tube.

[0018] 2. The present invention can make the limiting block drive the injection line tube to gradually move forward when the threaded sleeve rotates, so that the injection line tube can be neatly wound around the outer surface of the liquid storage bin, avoiding the injection line tube being wound around the same position of the liquid storage bin, helping to reduce the risk of abnormal flow rate caused by mutual compression when the injection line tube is wound, so that the patient can perform injections stably and continuously, and the injection line tube neatly wound around the outer surface of the liquid storage bin can also prevent the injection line tube from being damaged by wear and tear, thereby reducing the risk of infection of the injection line tube.

[0019] 3. When the injection line tube of the present invention is pulled, the limiter can move downward to avoid damage to the infusion pump or breakage of the injection line tube caused by excessive pulling of the injection line tube, thereby reducing the risk of infection caused by leakage of the drug solution, helping to protect the safety of the patient, and maintaining the integrity and stability of the infusion, ensuring the continuity and safety of the treatment.

[0020] 4. The present invention can cover the outer surface of the injection line tube when the elastic sheet is pulled to the left, so that the injection line tube can fit the skin and can be more stably fixed on the patient. The movement route of the injection line tube can also be restricted, reducing the risk of swinging or displacement of the injection line tube due to movement or activity, so that the injection line tube can maintain continuous and stable injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the injection pump, insulin tube, buckle and other components of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the injection line tube, fixing parts, liquid storage bin and other components of the present invention.

[0024] Figure 4 Schematic diagram of the three-dimensional structure of the fixing part, rotating part, knob and other components of the present invention.

[0025] Figure 5 It is a sectional view of the three-dimensional structure of the fixing piece, the knob, the first spring and other components of the present invention.

[0026] Figure 6 It is a sectional view of the three-dimensional structure of the liquid storage tank, rotating part, knob and other components of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the limiting block, the fixing plate, the toothed disc and other components of the present invention.

[0028] Figure 8 It is a sectional view of the three-dimensional structure of the limiter, the fixing frame, the second spring and other components of the present invention.

[0029] Fig. 9 It is a sectional view of the three-dimensional structure of the elastic sheet, adhesive member, rotating rod and other components of the present invention.

[0030] The markings of the components in the accompanying drawings are as follows: 1-belt, 11-infusion pump, 12-insulin tube, 13-buckle, 2-injection line tube, 21-fixed part, 22-liquid storage tank, 23-rotating part, 231-support plate, 24-knob, 241-latch, 25-first spring, 3-limiting block, 31-fixed plate, 32-toothed disc, 33-gear, 34-screw, 35-threaded sleeve, 36-protective ring, 361-fixed rod, 4-limiting part, 41-fixed frame, 42-second spring, 43-locking part, 5-protective plate, 51-elastic sheet, 52-adhesive part, 53-rotating rod, 54-torsion spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention will be further described below in conjunction with the embodiments.

[0033] Embodiments of the present invention

[0034] refer to Figures 1 to 6As shown, a syringe pump for subcutaneous injection of medicine includes an infusion pump 11, a buckle 13 is fixedly connected to the rear side of the infusion pump 11, a belt 1 is detachably connected between the left and right ends of the buckle 13, the belt 1 is used to fix the infusion pump 11 on the patient, an insulin tube 12 is detachably connected to the inner side of the infusion pump 11, the infusion pump 11 is used to transport the medicine inside the insulin tube 12, a support plate 231 is fixedly connected to the front side of the infusion pump 11, and a rotating member 23 is rotatably connected to the top of the support plate 231. The front side of the rotating member 23 is annularly provided with a plurality of circular holes, and the support plate 231 is used to limit the rotating member 23 from flipping forward and backward on the top of the support plate 231. A liquid storage tank 22 is rotatably connected to one side of the rotating member 23, and the rotating member 23 is used to drive the liquid storage tank 22 to flip at the same time. The outer surface of the liquid storage tank 22 is connected with the injection line tube 2, and the liquid storage tank 22 is used to transport the drug to the inside of the injection line tube 2. The rear side of the liquid storage tank 22 is rotatably connected with the fixing member 21, and the liquid storage tank 22 is used to drive the fixing member 21 to flip at the same time. The bottom of the fixing member 21 is plugged with the top of the insulin tube 12, the bottom of the fixing member 21 is used to plug the top of the insulin tube 12, the front side of the liquid storage bin 22 is slidably connected with a knob 24, the rear side of the knob 24 is fixedly connected with a latch 241, the rear end of the latch 241 is plugged with the annular circular hole on the front side of the rotating member 23, the latch 241 is used to limit the rotation of the infusion bin 22, the outer surface of the rear end of the fixing member 21 is fixedly sleeved with a first spring 25, the front end of the first spring 25 is fixedly connected to the rear end of the liquid storage bin 22, The first spring 25 is used to drive the liquid storage bin 22 to rotate. When the knob 24 drives the pin 241 to be pulled forward, the first spring 25 will drive the liquid storage bin 22 to rotate, allowing the excess injection line tube 2 to be wrapped around the outer surface of the liquid storage bin 22, so that the injection line tube 2 can be stored and protected from damage by the external environment, thereby enabling the injection line tube 2 to smoothly transport the drug. It can also prevent the injection line tube 2 from being entangled with other equipment or objects, thereby avoiding interruption of infusion caused by the entanglement of the injection line tube 2.

[0035] refer to Figure 7As shown, a syringe pump for subcutaneous injection of drugs, the outer surface of the fixing member 21 is fixedly connected to a fixing plate 31, the left end of the fixing plate 31 is rotatably connected to a threaded sleeve 35, the fixing plate 31 is used to limit the rotation of the threaded sleeve 35 at the left end of the fixing plate 31, the inner side of the threaded sleeve 35 is threadedly connected to a screw rod 34, the threaded sleeve 35 is used to drive the screw rod 34 to move forward and backward, the right side of the rear end of the screw rod 34 is slidably connected to the outer surface of the rear end of the fixing plate 31, the front end of the screw rod 34 is fixedly connected to a limiting block 3, the screw rod 34 is used to drive the limiting block 3 to move forward and backward, the outer surface of the front end of the threaded sleeve 35 is fixedly connected to a gear 33, the gear 33 is used to drive the threaded sleeve 35 to rotate simultaneously, the outer surface of the gear 33 is meshed with a toothed disc 32, the toothed disc 32 is used to drive the gear 33 to rotate simultaneously, the inner side of the toothed disc 32 The outer surface of the rear end of the liquid storage tank 22 is fixedly connected to the liquid storage tank 22, and the liquid storage tank 22 is used to drive the toothed disc 32 to rotate simultaneously. The upper surface of the rear end of the fixing member 21 is fixedly connected to a fixing rod 361, and the front end of the top of the fixing rod 361 is fixedly connected to a protective ring 36. The inner side of the protective ring 36 is sleeved on the outer surface of the toothed disc 32 and the gear 33. The protective ring 36 is used to protect the outer surface of the toothed disc 32 and the gear 33 to avoid scratches on the patient. When the threaded sleeve 35 rotates, the limiting block 3 can drive the injection line tube 2 to gradually move forward, so that the injection line tube 2 can be neatly wound around the outer surface of the liquid storage tank 22, avoiding the injection line tube 2 being wound at the same position of the liquid storage tank 22, which helps to reduce the risk of abnormal flow rate due to mutual compression when the injection line tube 2 is wound, so that the patient can perform injections stably and continuously.

[0036] refer to Figure 8 As shown, a syringe pump for subcutaneous injection of drugs, the upper surface of the left end of the support plate 231 is fixedly connected with a fixing frame 41, the left side of the top of the fixing frame 41 is slidably connected to a limiting member 4, the fixing frame 41 is used to limit the limiting member 4 from sliding on the left side of the top of the fixing frame 41, the outer surface of the top of the limiting member 4 is attached to the outer surface of the injection line tube 2, the top of the limiting member 4 is used to provide a reserved space for the injection line tube 2, the bottom of the outer surface of the injection line tube 2 is squeezed and matched with the outer surface of the top of the limiting member 4, the outer surface of the bottom of the limiting member 4 is fixedly sleeved with a second spring 42, the top of the second spring 42 is fixedly connected to the lower surface of the left side of the top of the fixing frame 41, the second spring 42 It is used to drive the limit member 4 to reset upward. The left side of the bottom of the limit member 4 is slidably connected to a locking member 43. The limit member 4 is used to limit the locking member 43 from sliding back and forth on the left side of the bottom of the limit member 4. The rear side of the top of the locking member 43 is clamped to the front end of the left side of the top of the fixing frame 41. The locking member 43 is used to limit the limit member 4 from moving downward, thereby preventing the limit member 4 from being accidentally triggered when the injection line tube 2 is installed. When the injection line tube 2 is pulled, the limit member 4 can be moved downward to avoid damage to the infusion pump 11 or breakage of the injection line tube 2 caused by excessive pulling of the injection line tube 2, thereby reducing the risk of infection caused by leakage of the drug and helping to protect the safety of the patient.

[0037] refer to Fig. 9 As shown, a syringe pump for subcutaneous injection of drugs, the left side of the upper surface of the support plate 231 is rotatably connected with a rotating rod 53, the top of the rotating rod 53 is fixedly connected with an elastic sheet 51, the elastic sheet 51 is used to cover the outer surface of the injection line tube 2, the left end of the elastic sheet 51 is fixedly connected with an adhesive member 52, the adhesive member 52 is used to drive the elastic sheet 51 to fit the patient's skin, the outer surface of the rotating rod 53 is fixedly wound with a torsion spring 54, the top of the torsion spring 54 is fixedly connected to the bottom of the elastic sheet 51, and the torsion spring 54 is used to drive the elastic sheet 51 to reset and rotate A protective plate 5 is fixedly connected to the upper surface of the right side of the support plate 231, and the lower surface of the top of the protective plate 5 is used to protect the upper surface of the right end of the injection line tube 2. By pulling the elastic sheet 51 to the left, the outer surface of the injection line tube 2 can be covered, so that the injection line tube 2 can fit the skin, so that the injection line tube 2 can be more stably fixed on the patient, and the movement route of the injection line tube 2 can be restricted, reducing the risk of swinging or displacement of the injection line tube 2 due to movement or activity, so that the injection line tube 2 can maintain continuous and stable injection.

[0038] The complete working principle and steps of the above embodiment are as follows:

[0039] refer to Figures 1 to 6 As shown, when the injection pump is in the initial state, the rear side of the fixing member 21 is in a horizontal flip state, the rear side of the bottom of the fixing member 21 has not yet been plugged into the top of the insulin tube 12, the rear side of the knob 24 is slidably connected to the front end of the liquid storage tank 22, the rear end of the latch 241 is clamped in the annular circular hole on the front side of the rotating member 23, and the first spring 25 is naturally relaxed;

[0040] Depend on Figure 4As described above, when the patient uses the injection pump for infusion, the insulin tube 12 is first placed on the inner side of the infusion pump 11, and the belt 1 is fixed on the arm. At this time, the fixing member 21 is rotated, so that the fixing member 21 rotates and drives the first spring 25 to rotate to the power storage state, and the patient can hold the fixing member 21 and the liquid storage tank 22, and drive the fixing member 21 and the liquid storage tank 22 to swing counterclockwise by 90 degrees. Since the outer surface of the front side of the liquid storage tank 22 is rotated and connected to the inner side of the rotating member 23, the fixing member 21 and the liquid storage tank 22 will drive the rotating member 23 to swing counterclockwise by 90 degrees. The rotating member 23 swings at the same time on the top of the support plate 231, and when the fixing member 21 swings counterclockwise by 90 degrees, the bottom of the fixing member 21 can be inserted into the top of the insulin tube 12. At this time, the rear side of the left end of the injection line tube 2 is attached to the part that needs injection and the infusion pump 11 is started, so that the infusion pump 11 delivers the medicine inside the insulin tube 12 to the inside of the fixing member 21, and the medicine inside the fixing member 21 is delivered to the inside of the injection line tube 2 through the liquid storage tank 22, so that the medicine can be delivered from the rear side of the left end of the injection line tube 2 to the patient's body for injection. Figure 5 As shown, at this time, the patient can slide the knob 24 forward, and when the knob 24 slides forward, it will drive the pin 241 to move at the same time, so that the rear end of the pin 241 will be disengaged from the annular circular hole on the front side of the rotating member 23. At this time, the pin 241 will not limit the rotation of the liquid storage tank 22 through the knob 24, and the first spring 25 in the power storage state can drive the liquid storage tank 22 to rotate. When the liquid storage tank 22 rotates, the knob 24 and the pin 241 will also rotate together, and when the liquid storage tank 22 rotates, it can drive the excess injection line tube 2 to wrap around the outer surface of the liquid storage tank 22, so that the injection line tube 2 can be stored and protected from damage by the external environment, so that the injection line tube 2 can smoothly deliver the drug, and it can also prevent the injection line tube 2 from being entangled with other equipment or objects, reducing the interruption of infusion caused by entanglement.

[0041] When the injection line tube 2 is stored to an appropriate length, the user can reinsert the knob 24 into the front side of the liquid storage tank 22. When the knob 24 moves backward, it will drive the pin 241 to move at the same time, prompting the rear end of the pin 241 to be reinserted into the annular hole on the front side of the rotating member 23, thereby enabling the knob 24 to fix the liquid storage tank 22 to prevent the liquid storage tank 22 from rotating again.

[0042] refer to Figure 7 As shown, when the injection pump is in the initial state, the inner thread of the threaded sleeve 35 is connected to the outer surface of the front side of the screw rod 34;

[0043] As the liquid storage bin 22 rotates, the liquid storage bin 22 drives the toothed disc 32 to rotate simultaneously. Since the outer surface of the toothed disc 32 is slidably connected to the inner side of the protective ring 36, the toothed disc 32 can avoid causing harm to the patient when it rotates. When the toothed disc 32 rotates, the gear 33 is driven to rotate simultaneously. When the gear 33 rotates, the threaded sleeve 35 is driven to rotate simultaneously on the left side of the fixing plate 31. When the threaded sleeve 35 rotates, it drives the screw 34 to move forward at the left end of the fixing plate 31. When the screw 34 moves forward, it drives the limiting block 3 to move simultaneously. When the limiting block 3 moves forward, The injection line tube 2 is moved forward gradually, so that the liquid storage tank 22 can make the injection line tube 2 neatly wound around the outer surface of the liquid storage tank 22, thereby avoiding the injection line tube 2 being wound at the same position of the liquid storage tank, helping to reduce the risk of abnormal flow rate caused by mutual compression when the injection line tube 2 is wound, so that the patient can perform injections stably and continuously, and the injection line tube 2 neatly wound around the outer surface of the liquid storage tank 22 can also prevent the injection line tube 2 from being damaged by wear, thereby reducing the risk of infection of the injection line tube 2.

[0044] When the user needs to take the injection line tube 2 out from the outer surface of the liquid storage tank 22, he only needs to pull the injection line tube 2 slightly to the left. When the injection line tube 2 moves to the left, it will drive the toothed disc 32 to rotate in the opposite direction through the liquid storage tank 22. When the toothed disc 32 rotates in the opposite direction, it will prompt the gear 33 to drive the threaded sleeve 35 to reverse at the same time. As the threaded sleeve 35 rotates in the opposite direction, it will drive the limiting block 3 to move backward through the screw 34. When the limiting block 3 moves backward, it will drive the injection line tube 2 to detach from the outer surface of the liquid storage tank 22.

[0045] refer to Figure 8 As shown, when the patient installs the injection line tube 2, since the rear side of the top of the locking piece 43 is clamped to the front side of the top of the fixing frame 41, the limiting piece 4 will not slide downward, thereby preventing the injection line tube 2 from sliding when the patient installs the injection line tube 2. When the injection line tube 2 is installed, the bottom of the outer surface of the injection line tube 2 will fit the outer surface of the top of the limiting piece 4, so that the injection line tube 2 can reserve a distance, and the patient can slide the locking piece 43 forward to disengage the rear side of the top of the locking piece 43 from the front side of the top of the fixing frame 41, so that the patient can During injection, when the injection line tube 2 is pulled, the injection line tube 2 can squeeze the limiter 4 downward, and when the limiter 4 moves downward, the second spring 42 can be moved to a stretched state, and when the limiter 4 moves downward, the reserved end of the injection line tube 2 can be moved to a straightened state, thereby avoiding damage to the infusion pump 11 or breakage of the injection line tube 2 caused by excessive pulling of the injection line tube 2, thereby reducing the risk of infection caused by leakage of the drug solution, helping to protect the safety of the patient, and maintaining the integrity and stability of the infusion, ensuring the continuity and safety of the treatment.

[0046] As the tension on the injection line tube 2 disappears, the second spring 42 in the stretched state will drive the limit member 4 to move upward, and when the limit member 4 moves upward, it will prompt the limit member 4 to reserve a distance at one end again.

[0047] When the patient finishes the injection, the patient can slide the locking piece 43 backwards so that the rear side of the top of the locking piece 43 is re-engaged with the front side of the top of the fixing frame 41, thereby preventing the limiter 4 from sliding up and down and preventing the patient from shaking when removing the injection line tube 2.

[0048] refer to Fig. 9 As shown, as the injection line tube 2 is infused, the patient can drive the elastic sheet 51 to be pulled to the left through the adhesive piece 52. Since the elastic sheet 51 is formed by winding a circle, when the elastic sheet 51 is pulled to the left, the elastic sheet 51 will be caused to rotate. When the right end of the elastic sheet 51 rotates, the torsion spring 54 will be caused to rotate to the stored force state. When the elastic sheet 51 and the adhesive piece 52 are pulled to the left, the back side of the adhesive piece 52 can be attached to the skin surface, so that the back side of the elastic sheet 51 can cover the surface of the injection line tube 2, so that the injection line tube 2 can be attached to the skin, so that the injection line tube 2 can be more stably fixed on the patient, and the moving route of the injection line tube 2 can be restricted, thereby reducing the risk of swinging or displacement of the injection line tube 2 due to movement or activity, so that the injection line tube 2 can maintain continuous and stable injection.

[0049] When the injection is completed, the patient can peel off the adhesive piece 52 from the skin. At this time, the torsion spring 54 in the power storage state can drive the right end of the elastic sheet 51 to reset and rotate, and the elastic sheet 51 will drive the adhesive piece 52 to return to the initial state when it resets and rotates.

[0050] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. An injection pump for subcutaneous injection of a drug, comprising an infusion pump (11), a buckle (13) being fixedly connected to one side of the infusion pump (11), a belt (1) being detachably connected between the two ends of the buckle (13), and an insulin tube (12) being detachably connected to the inner side of the infusion pump (11), wherein: A support plate (231) is fixedly connected to one side of the infusion pump (11), a rotating member (23) is rotatably connected to the top of the support plate (231), a liquid storage tank (22) is rotatably connected to one side of the rotating member (23), an injection line tube (2) is connected to the outer surface of the liquid storage tank (22), a fixing member (21) is rotatably connected to one side of the liquid storage tank (22), the bottom of the fixing member (21) is plugged into the top of the insulin tube (12), a knob (24) is slidably connected to the side of the liquid storage tank (22) away from the fixing member (21), and a latch (241) is fixedly connected to the side of the knob (24) close to the fixing member (21).

2. A syringe pump for subcutaneous injection of a drug according to claim 1, characterized in that: A first spring (25) is fixedly sleeved on the outer surface of one end of the fixing member (21), and the other end of the first spring (25) is fixedly connected to one end of the liquid storage bin (22).

3. A syringe pump for subcutaneous injection of a drug according to claim 2, characterized in that: A plurality of circular holes are provided in an annular shape on one side of the rotating member (23) away from the fixing member (21), and a side of the latch (241) away from the knob (24) is snap-fitted with the annular circular holes on one side of the rotating member (23).

4. A syringe pump for subcutaneous injection of a drug according to claim 3, characterized in that: The outer surface of the fixing member (21) is fixedly connected to a fixing plate (31), one end of the fixing plate (31) is rotatably connected to a threaded sleeve (35), the inner side of the threaded sleeve (35) is threadedly connected to a screw rod (34), one end of the screw rod (34) is slidably connected to the outer surface of one end of the fixing plate (31), the outer surface of one end of the threaded sleeve (35) is fixedly connected to a gear (33), the outer surface of the gear (33) is meshed with a toothed disc (32), the inner side of the toothed disc (32) is fixedly connected to the outer surface of one end of the liquid storage tank (22), one end of the screw rod (34) is fixedly connected to a limiting block (3), the inner side of the limiting block (3) is slidably connected to the outer surface of the injection line tube (2).

5. A syringe pump for subcutaneous injection of a drug according to claim 4, characterized in that: A fixing rod (361) is fixedly connected to the outer surface of the fixing member (21), one end of the fixing rod (361) is fixedly connected to a protection ring (36), and the inner side of the protection ring (36) is sleeved on the outer surfaces of the toothed disc (32) and the gear (33).

6. A syringe pump for subcutaneous injection of a drug according to claim 5, characterized in that: The upper surface of one end of the support plate (231) is fixedly connected to a fixing frame (41), and one side of the top of the fixing frame (41) is slidably connected to a limiting member (4), the outer surface of the top of the limiting member (4) is in contact with the outer surface of the injection line tube (2), and the bottom of the outer surface of the injection line tube (2) is squeezed and matched with the outer surface of the top of the limiting member (4), and the outer surface of the bottom of the limiting member (4) is fixedly sleeved with a second spring (42), and the top of the second spring (42) is fixedly connected to the lower surface of the top of the fixing frame (41).

7. A syringe pump for subcutaneous injection of a drug according to claim 6, characterized in that: One side of the bottom of the limiting member (4) is slidably connected to a locking member (43), and one side of the top of the locking member (43) is clamped to one side of the top of the fixing frame (41).

8. A syringe pump for subcutaneous injection of a drug according to claim 7, characterized in that: A rotating rod (53) is rotatably connected to one side of the upper surface of the support plate (231), an elastic sheet (51) is fixedly connected to the top of the rotating rod (53), and an adhesive member (52) is fixedly connected to one end of the elastic sheet (51).

9. A syringe pump for subcutaneous injection of a drug according to claim 8, characterized in that: A torsion spring (54) is fixedly wound around the outer surface of the rotating rod (53), and the top of the torsion spring (54) is fixedly connected to the bottom of the elastic sheet (51).

10. An injection pump for subcutaneous injection of medicine according to claim 9, characterized in that: A protective plate (5) is fixedly connected to the upper surface of one side of the support plate (231).

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