Syringe propelling mechanism

Abstract

The utility model discloses an injector propelling mechanism, and particularly relates to the technical field of injectors, the injector propelling mechanism comprises a bottom plate, a protective sleeve is arranged on the outer side of the bottom plate, a movable plate is arranged at the top of the bottom plate, a fixed assembly is arranged at the top of the bottom plate, and a movable assembly is arranged between the movable plate and the bottom plate. The movable plate is matched with the clamping plate and the squeezing plate, injectors of different specifications can be fixed, the movable plate is driven by the motor to push the piston rod, and then automatic propelling injection can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of syringes, and more specifically, to a syringe propulsion mechanism. Background Art

[0002] A syringe is a medical device, generally composed of a barrel, a piston and a needle. When using a medical syringe, the medicine liquid is first drawn from the medicine container through the needle, and then the piston is pushed for injection.

[0003] The utility model patent with patent publication number CN219614598U discloses an auxiliary pusher for a syringe, comprising a first shell and a second shell connected to each other, wherein a push seat capable of reciprocating along the length direction of the first shell and the second shell is arranged on the first shell and the second shell, and a placement groove capable of fixing the piston handle of the syringe is opened on the push seat. The advantage of this structure is that by placing the piston handle of the syringe into the placement groove, the piston handle of the syringe is limited, the syringe barrel of the syringe is clamped in the limiting groove, and the syringe barrel of the syringe is clamped and fixed, and the threaded rod is driven to rotate by the driving motor to move the moving seat forward, thereby driving the piston handle, piston shaft and piston of the syringe forward, and then pushing the medicine in the syringe barrel of the syringe out, realizing automatic auxiliary propulsion of the syringe, reducing the labor intensity of medical staff, and making the syringe propulsion speed more uniform; by using a vibration motor, the injection pain can be relieved, the drug can be diffused faster, and the injection effect can be better.

[0004] However, in actual use, although this structure can realize automatic propulsion injection, since syringes of different specifications have different sizes and the limiting groove has a fixed size, it is not convenient to fix it according to the size of the syringe, which will affect the stability of the syringe. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, the utility model provides a syringe propulsion mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a syringe propulsion mechanism comprises a base plate, a protective sleeve is provided on the outer side of the base plate, a movable plate is provided on the top of the base plate, a fixing assembly is provided on the top of the base plate, a movable assembly is provided between the movable plate and the base plate, which is conducive to fixing syringes of different specifications, the fixing assembly comprises two fixing plates arranged on the top of the base plate, a support plate is provided on one side of the fixing plate, threaded rods are provided on one side of the two fixing plates, one end of the two threaded rods penetrates the surface of the fixing plate and extends to one side of the fixing plate, a clamping plate is provided on one end of the two threaded rods, a placement hole is opened on the surface of the support plate, holes are opened on the inner walls on both sides of the placement hole, telescopic rods are provided inside the two holes, one end of the telescopic rod is hinged with an extrusion plate, a first spring is sleeved on the outer side of the two telescopic rods, two ends of the first spring are respectively fixedly connected to the inner wall of the hole and the surface of the extrusion plate, and a silicone pad is provided on one side of the two extrusion plates, which is conducive to fixing the syringe.

[0007] Preferably, the moving component includes a protective frame arranged on one side of the base plate, a motor is arranged inside the protective frame, a moving groove is opened on the surface of the base plate, a screw rod is arranged inside the moving groove, the output end of the motor is coaxially connected with the screw rod, a moving block is arranged on the outer threaded sleeve of the screw rod, and the top of the moving block is fixedly connected to the surface of the moving plate, which is conducive to pushing the piston rod.

[0008] Preferably, a fixing groove is provided on the surface of the movable plate, a movable plate is provided inside the fixing groove, a cover plate is provided on the top of the movable plate through a hinge, a positioning rod is provided at the bottom of the cover plate, a positioning hole is provided on the surface of the movable plate, and the positioning rod is engaged with the positioning hole, which is conducive to fixing the cover plate.

[0009] Preferably, a plurality of second springs are provided at the bottom of the movable plate, and the bottoms of the plurality of second springs are fixedly connected to the inner wall of the fixing groove, which is conducive to squeezing and fixing the piston rod.

[0010] Preferably, a stretching rod is provided on one side of the two fixed plates, one end of the two stretching rods is fixedly connected to the surface of the clamping plate, and the cross-sections of the two conveying clamping plates are both arranged to be arc-shaped, which is conducive to limiting the clamping plates.

[0011] Technical effects and advantages of the utility model:

[0012] 1. By setting a fixing component, open the cover plate on the top of the movable plate, place the piston rod on one side of the syringe inside the fixing groove, place the syringe between the two clamping plates, place one end of the support cylinder inside the placement hole, close the cover plate, make the fixing rod engage with the positioning hole, generate pressure on the piston rod, drive the movable plate to move downward, and make the second spring expand and contract. Through the elasticity of the second spring, an upward thrust can be generated on the piston rod, and the piston rod can be squeezed and fixed. Then, the threaded rod is rotated to drive the clamping plate to move to one side. The limit rod is prevented from rotating by the stretching rod, so that the clamping plate fits with the surface of the syringe. Through the elasticity of the first spring, the telescopic rod is driven to generate power on the extrusion plate, so that the silicone pad on one side of the extrusion plate fits with the surface of one end of the syringe. Not only can the syringe be doubly fixed, but also syringes of different specifications can be fixed, which is beneficial to improve the stability of the syringe.

[0013] 2. By setting up a moving component, starting the motor, driving the threaded rod to rotate, the moving block drives the moving plate to move to one side. When the moving plate moves, it can drive the piston rod to push to one side, and then the patient can be injected, and the automatic injection effect can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the support plate of the utility model.

[0016] Figure 3 It is a schematic diagram of the connection structure between the fixing plate and the clamping plate of the utility model.

[0017] Figure 4 It is a schematic diagram of the internal structure of the movable plate of the utility model.

[0018] Figure 5 It is a schematic diagram of the internal structure of the bottom plate of the utility model.

[0019] The accompanying drawings are marked as follows: 1. base plate; 2. protective cover; 3. movable plate; 4. fixed plate; 5. support plate; 6. threaded rod; 7. clamping plate; 8. hole; 9. extrusion plate; 10. first spring; 11. silicone pad; 12. protective frame; 13. motor; 14. screw rod; 15. movable block; 16. movable plate; 17. cover plate; 18. positioning rod; 19. positioning hole; 20. second spring; 21. stretching rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] As attached Figure 1-5 The syringe propulsion mechanism shown in the figure comprises a bottom plate 1, a protective sleeve 2 is arranged outside the bottom plate 1, a moving plate 3 is arranged on the top of the bottom plate 1, a fixed component is arranged on the top of the bottom plate 1, and a moving component is arranged between the moving plate 3 and the bottom plate 1, as shown in the attached Figure 1 , 2 As shown in , 3, the fixing assembly includes two fixing plates 4 arranged on the top of the base plate 1, a supporting plate 5 is provided on one side of the fixing plate 4, threaded rods 6 are provided on one side of the two fixing plates 4, one end of the two threaded rods 6 penetrates the surface of the fixing plate 4 and extends to one side of the fixing plate 4, one end of the two threaded rods 6 is provided with a clamping plate 7, a placement hole is opened on the surface of the supporting plate 5, holes 8 are opened on the inner walls on both sides of the placement hole, telescopic rods are provided inside the two holes 8, an extrusion plate 9 is hingedly provided at one end of the telescopic rod, a first spring 10 is sleeved on the outside of the two telescopic rods, the two ends of the first spring 10 are respectively fixedly connected to the inner wall of the hole 8 and the surface of the extrusion plate 9, a silicone pad 11 is provided on one side of the two extrusion plates 9, the threaded rod 6 is rotated, the clamping plate 7 moves to one side, so that the clamping plate 7 fits with the surface of the syringe, and the first spring 10 generates a thrust on the telescopic rod and the extrusion plate 9, so that the silicone pad 11 fits with the surface of the syringe, so that the syringe can be fixed.

[0022] As attached Figure 1 , 5 As shown, the moving component includes a protective frame 12 arranged on one side of the base plate 1, a motor 13 is arranged inside the protective frame 12, a moving groove is opened on the surface of the base plate 1, a screw rod 14 is arranged inside the moving groove, the output end of the motor 13 is coaxially connected with the screw rod 14, a moving block 15 is provided on the outer thread sleeve of the screw rod 14, the top of the moving block 15 is fixedly connected to the surface of the moving plate 3, the motor 13 is started to drive the screw rod 14 to rotate, so that the moving block 15 drives the moving plate 3 to move to one side along the screw rod 14, and the distance between the moving plate 3 and the support plate 5 can be adjusted.

[0023] As attached Figure 4 As shown, a fixing groove is provided on the surface of the movable plate 3, a movable plate 16 is provided inside the fixing groove, a cover plate 17 is provided on the top of the movable plate 3 through a hinge, a positioning rod 18 is provided at the bottom of the cover plate 17, a positioning hole 19 is provided on the surface of the movable plate 3, the positioning rod 18 is engaged with the positioning hole 19, the cover plate 17 is pulled to separate the positioning rod 18 from the positioning hole 19, and the piston rod is placed inside the fixing groove.

[0024] As attached Figure 4 As shown, a plurality of second springs 20 are provided at the bottom of the movable plate 16, and the bottoms of the plurality of second springs 20 are fixedly connected to the inner wall of the fixing groove. The elasticity of the second springs 20 drives the movable plate 16 to move, which can generate thrust on the piston rod so that its top contacts the surface of the cover plate 17.

[0025] As attached Figure 3 As shown, a stretching rod 21 is provided on one side of the two fixed plates 4, and one end of the two stretching rods 21 is fixedly connected to the surface of the clamping plate 7. The cross-sections of the two conveying clamping plates 7 are both arranged to be arc-shaped. When the clamping plates 7 move, the stretching rods 21 are driven to stretch, which can limit the clamping plates 7 and prevent the clamping plates 7 from rotating.

[0026] Working principle of the utility model: when in use, first place the syringe on the bottom plate 1, place one end of the syringe inside the placement hole, so that the syringe is located between the two clamping plates 7, and start the motor 13 to drive the screw rod 14 to rotate, so that the moving block 15 drives the moving plate 3 to move to one side along the screw rod 14, and moves the moving plate 3 until the syringe moves;

[0027] Then, open the cover plate 17 on the top of the movable plate 3 to separate the positioning rod 18 from the positioning hole 19, place the piston rod on one side of the syringe inside the fixed groove, make the bottom of the piston rod contact the surface of the movable plate 16, press the cover plate 17 to make the positioning rod 18 engage with the positioning hole 19, and by applying pressure to the piston rod, drive the movable plate 16 to move downward, so that the second spring 20 is extended and retracted. The elasticity of the second spring 20 can form a rebound force on the piston rod, so that both sides of the piston rod are tightly fitted with the surfaces of the movable plate 16 and the cover plate 17, and one end of the syringe can be fixed;

[0028] Then, the threaded rod 6 is rotated to drive the clamping plate 7 to move to one side. During the movement of the clamping plate 7, the stretching rod 21 is driven to expand and contract. The stretching rod 21 can limit the clamping plate 7 so that the clamping plate 7 moves horizontally to one side to prevent the clamping plate 7 from rotating. The two clamping plates 7 are in contact with the surface of the syringe. Since the cross section of the clamping plate 7 is an arc, it can be better adjusted with the syringe, which is conducive to reducing the gap between the syringe and the clamping plate 7.

[0029] When one end of the syringe is inside the placement hole, the elasticity of the first spring 10 can drive the telescopic rod to stretch, generate power for the extrusion plate 9, and make the extrusion plate 9 drive the silicone pad 11 to move to one side, so that the silicone pad 11 fits the surface of the syringe. Since the telescopic rod and the extrusion plate 9 are hinged, the angle of the extrusion plate 9 can be changed according to the shape of the syringe surface, which is convenient for fixing one end of the syringe. The utility model can double-fix the syringe by using the clamping plate 7 in conjunction with the extrusion plate 9, which is beneficial to the stability of the syringe. The motor 13 drives the moving plate 3 to move, which can push the piston rod to move, and then the patient can be pushed for injection.

[0030] Finally: The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A syringe propulsion mechanism, comprising a base plate (1), characterized in that: A protective cover (2) is provided on the outside of the bottom plate (1), a movable plate (3) is provided on the top of the bottom plate (1), a fixed component is provided on the top of the bottom plate (1), and a movable component is provided between the movable plate (3) and the bottom plate (1); The fixing assembly comprises two fixing plates (4) arranged on the top of the bottom plate (1), a supporting plate (5) being provided on one side of the fixing plate (4), a threaded rod (6) being provided on one side of the two fixing plates (4), one end of each of the two threaded rods (6) passing through the surface of the fixing plate (4) and extending to one side of the fixing plate (4), a clamping plate (7) being provided on one end of each of the two threaded rods (6), a placement hole being provided on the surface of the supporting plate (5), holes (8) being provided on the inner walls on both sides of the placement hole, telescopic rods being provided inside the two holes (8), an extrusion plate (9) being hingedly provided on one end of the telescopic rod, a first spring (10) being sleeved on the outer side of the two telescopic rods, two ends of the first spring (10) being fixedly connected to the inner wall of the hole (8) and the surface of the extrusion plate (9) respectively, and a silicone pad (11) being provided on one side of the two extrusion plates (9).

2. A syringe propulsion mechanism according to claim 1, characterized in that: The moving assembly comprises a protective frame (12) arranged on one side of the base plate (1), a motor (13) is arranged inside the protective frame (12), a moving groove is opened on the surface of the base plate (1), a screw rod (14) is arranged inside the moving groove, an output end of the motor (13) is coaxially connected to the screw rod (14), a moving block (15) is threadedly sleeved on the outer side of the screw rod (14), and the top of the moving block (15) is fixedly connected to the surface of the moving plate (3).

3. A syringe propulsion mechanism according to claim 1, characterized in that: A fixing groove is provided on the surface of the movable plate (3), a movable plate (16) is provided inside the fixing groove, a cover plate (17) is provided on the top of the movable plate (3) through a hinge, a positioning rod (18) is provided at the bottom of the cover plate (17), a positioning hole (19) is provided on the surface of the movable plate (3), and the positioning rod (18) is engaged with the positioning hole (19).

4. A syringe propulsion mechanism according to claim 3, characterized in that: A plurality of second springs (20) are provided at the bottom of the movable plate (16), and the bottoms of the plurality of second springs (20) are fixedly connected to the inner wall of the fixing groove.

5. A syringe propulsion mechanism according to claim 1, characterized in that: A stretching rod (21) is provided on one side of the two fixed plates (4), one end of the two stretching rods (21) is fixedly connected to the surface of the clamping plate (7), and the cross-sections of the two conveying clamping plates (7) are both arranged to be arc-shaped.

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