CN219110427U - Portable mechanical structure injection pump - Google Patents

Abstract

The utility model discloses a portable mechanical injection pump, which comprises a seat body, an injector, a sliding rail, a clamping seat, a spring driving device, a sliding seat, a pushing seat, a rack transmission mechanism, a flow control valve and a shell, wherein the sliding seat is arranged on the seat body; the flow control valve is connected with the output end of the needle cylinder of the injector. The utility model has reasonable structural design, can manually drive the rack transmission mechanism to drive the spring driving device to store energy, opens the flow control valve, and the spring driving device stores energy to push the injector to realize the injection purpose, and can control the injection flow by adjusting the flow control valve to adjust the required infusion speed and time, thereby having simple and convenient operation; because the pure mechanical structure design is adopted, the power supply is not affected, the power supply is not required to be electrified and the power supply battery is additionally arranged, the work is not stopped due to unexpected power failure, the application range is wide, the whole appearance is small and exquisite, the carrying is convenient, and the wide popularization and the application are facilitated.

Description

Portable mechanical structure injection pump

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a portable mechanical structure injection pump.

Background

An injection pump is a medical infusion device, which is widely applied to clinical treatment, and belongs to equipment and appliances of operating rooms, emergency rooms, diagnosis and treatment rooms and the like.

The syringe pump is generally composed of a stepping motor and its driver, a screw, a holder, etc., and has a reciprocating screw and a nut, and is also called a screw pump. The nut is connected with the piston of the injector, and the injector is filled with liquid medicine, so that high-precision, stable and pulsation-free liquid transmission is realized.

The utility model discloses a portable intravenous injection pump, which is named as a portable intravenous injection pump, as disclosed in the publication No. CN216496839U, and comprises a first box body, a second box body hinged with the first box body, a first groove arranged on one side of the first box body, which is close to the second box body, a second groove arranged on one side of the second box body, which is close to the first box body, and a first driving device arranged in the first box body; the first driving device is used for driving the piston of the injector to move; the first grooves are distributed along the length direction of the first box body and are surrounded to form a cylindrical space for accommodating the injector; the first groove and the second groove are respectively provided with a first clamping groove for clamping the syringe handle. The first driving device comprises a first motor, a first screw rod fixedly connected with an output shaft of the first motor, a first connecting plate in threaded connection with the first screw rod, and a pressing plate fixedly connected with one end, far away from the first screw rod, of the first connecting plate; the first groove is provided with a first abdication hole for the first connecting plate to pass through; the first connecting plate is perpendicular to the first screw rod, and the first screw rod is parallel to the length direction of the first groove; the pressure plate is used for pressing a piston handle of the syringe. The first box body and the second box body are combined together, the injector is fully clamped in the first box body and the second box body, and injection can be started after proper injection parameters are adjusted. Although the injection can be realized, the injection needs to be powered by a power supply, and the operation of the injection is stopped due to unexpected power failure, so the injection is not suitable for being used in some outdoor special environments, and an electric control unit needs to be configured.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide the portable mechanical structure injection pump which is reasonable in structural design, free from power supply, simple to operate and convenient to carry.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: the utility model provides a portable mechanical structure syringe pump, its includes pedestal, syringe, slide rail, cassette, spring drive, slide, pushing away seat, rack drive and flow control valve, the slide rail sets up on the pedestal, the cassette corresponds the front end position setting of slide rail is on the pedestal, slide, pushing away the seat activity and setting up on the slide rail, rack drive sets up on the pedestal to can drive the slide to cassette direction removes, the cylinder of syringe sets up on the cassette, just the piston rod of syringe pushes away on the pushing away the seat, spring drive sets up on pushing away the seat, and with the slide is connected, flow control valve with the syringe output of syringe is connected.

As a preferable scheme of the utility model, the clamping seat is provided with a through hole for the needle cylinder of the injector to pass through, the needle cylinder of the injector is provided with a holding plate, and the hole wall of the through hole is provided with a clamping groove for the holding plate to be clamped in a rotating way, so that the injector can be positioned and fixed better.

As a preferable scheme of the utility model, the sliding seat is provided with the opening for the piston rod of the injector to pass through, the pushing seat is provided with the cylinder body which is matched with the piston rod of the injector and corresponds to the opening, and the cylinder body can sleeve the tail end of the piston rod, so that the matching effect is good.

As a preferable mode of the utility model, the spring driving device comprises a winding shaft seat and a clockwork spring, one end of the clockwork spring is wound on the winding shaft seat, and the other end of the clockwork spring is connected with the sliding seat. Preferably, the number of the spring driving devices is two, the spring driving devices are symmetrically arranged on two sides of the pushing seat, force is symmetrically applied, and the working stability is good.

As a preferable scheme of the utility model, the rack transmission mechanism comprises a handle, a connecting rod, a clutch flat rod, a driving rack, a positioning tooth block and a power tooth block, wherein the positioning rack is arranged on the side wall of the sliding rail, one side of the front part of the sliding seat is provided with a sliding part, a horizontal long hole is arranged on the sliding part, one side of the tail part of the sliding seat is provided with a mounting part, the mounting part is provided with a shaft hole and an arc sliding hole, one end of the handle is hinged on the shaft hole, the driving rack is arranged on the connecting rod, one end of the connecting rod is provided with a front sliding shaft which is positioned in the horizontal long hole, the other end of the connecting rod is provided with a rear sliding shaft which penetrates through the arc sliding hole and is connected to the handle, the positioning tooth block and the power tooth block are sequentially arranged at the bottom of the sliding seat, wherein a ratchet of the positioning tooth block faces the positioning rack and is meshed with the positioning rack, a ratchet of the power tooth block faces the driving rack and is meshed with the driving rack, the clutch flat rod sequentially penetrates the positioning tooth block and the power tooth block and the positioning tooth block and rotates on the corresponding positioning tooth block or the power tooth block when the positioning tooth block and the power tooth block are meshed with the power tooth block in a separated mode. The handle is driven to swing up and down manually, the linkage driving rack is driven to reciprocate back and forth, the sliding seat is driven to move forward through the cooperation of the driving rack and the power tooth block, at the moment, the pushing seat is propped against the piston rod of the injector, and the piston rod can not perform compression action because the flow control valve is not opened yet, so that the pushing seat is blocked to keep the position unchanged. Along with the continuous forward movement of the sliding seat, the clockwork spring is forced to be straightened and stored energy, so that load is generated to act on the piston rod of the injector, and the operation is simple and convenient.

As a preferable scheme of the utility model, the utility model also comprises a shell covered on the seat body, and has good protection effect and attractive appearance.

The beneficial effects of the utility model are as follows: the utility model has reasonable structural design, can manually drive the rack transmission mechanism to drive the spring driving device to store energy, opens the flow control valve, and the spring driving device stores energy to push the injector to realize the injection purpose, and can control the injection flow by adjusting the flow control valve to adjust the required infusion speed and time, thereby having simple and convenient operation; because the pure mechanical structure design is adopted, the power supply is not affected, the power supply is not required to be electrified and the power supply battery is additionally arranged, the work is not stopped due to unexpected power failure, the application range is wide, the whole appearance is small and exquisite, the carrying is convenient, and the wide popularization and the application are facilitated.

The utility model will be further described with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic exploded view of the present utility model.

Fig. 3 is a schematic structural view of a slide and a push base in the present utility model.

Fig. 4 is a schematic view of the handle of fig. 3 when pulled up.

Fig. 5 is an exploded view of fig. 3.

Fig. 6 is a schematic view of the structure of the rack gear mechanism in the present utility model.

Fig. 7 is a schematic view 1 of the working structure of the rack gear mechanism in the present utility model.

Fig. 8 is a schematic view 2 of the working structure of the rack gear mechanism in the present utility model.

Detailed Description

Referring to fig. 1 to 6, the present embodiment provides a portable mechanical injection pump, which includes a housing 1, an injector 2, a slide rail 3, a cartridge 4, a spring driving device 5, a slide 6, a push seat 7, a rack gear 8, a flow control valve 9, and a housing 10. The shell 10 can be covered on the seat body 1, and has good protection effect and attractive appearance

The injector 2 includes a cylinder 21 and a piston rod 22 provided on the cylinder 21. The flow control valve 9 is connected to the output of the cylinder 21 of the injector 2.

The sliding rail 3 is arranged at the middle part of the seat body 1, the clamping seat 4 is arranged on the seat body 1 corresponding to the front end position of the sliding rail 3, a through hole for the needle cylinder 21 of the injector 2 to pass through is formed in the clamping seat 4, a holding plate is arranged on the needle cylinder 21 of the injector 2, a clamping groove for enabling the holding plate to be clamped in a rotating mode is formed in the hole wall of the through hole, and the injector 2 can be positioned and fixed well. By rotating the cylinder 21 in the opposite direction, the holding plate can be withdrawn from the locking groove.

The sliding seat 6 and the pushing seat 7 are movably arranged on the sliding rail 3, specifically, an opening 61 for allowing the piston rod 22 of the syringe 2 to pass through is formed in the sliding seat 6, a cylinder 71 matched with the piston rod 22 of the syringe 2 is arranged on the pushing seat 7 corresponding to the opening 61, and the tail end of the piston rod 22 can be sleeved by the cylinder 71, so that the matching effect is good.

The rack transmission mechanism 8 is arranged on the seat body 1 and can drive the sliding seat 6 to move towards the direction of the clamping seat 4. The rack transmission mechanism 8 comprises a handle 81, a connecting rod 82, a clutch flat bar 83, a driving rack 84, a positioning rack 85, a positioning tooth block 86 and a power tooth block 87, wherein the positioning rack 85 is arranged on the side wall of the sliding rail 3, a sliding part 61 is arranged on one side of the front part of the sliding seat 6, a horizontal long hole 62 is arranged on the sliding part 61, a mounting part 63 is arranged on one side of the tail part of the sliding seat 6, a shaft hole 64 and an arc sliding hole 65 are arranged on the mounting part 63, one end of the handle 81 is hinged to the shaft hole 64, the driving rack 84 is arranged on the connecting rod 82, one end of the connecting rod 82 is provided with a front sliding shaft which is positioned in the horizontal long hole 62, the other end of the connecting rod 82 is provided with a rear sliding shaft which passes through the arc sliding hole 65 and is connected to the handle 81, the positioning tooth block 86 and the power tooth block 87 are sequentially arranged at the bottom of the sliding seat 6, the ratchet teeth of the positioning tooth block 86 face the positioning rack 85 and are meshed with the positioning rack 85, the power tooth block 87 faces the shaft 84, and the driving rack 84 is meshed with the driving rack 84 in turn, and the clutch flat bar 84 can be meshed with the driving rack 84 or the driving rack 84 in turn when the driving rack 84 is meshed with the corresponding positioning tooth block 84. For convenient operation, a clutch knob 88 is provided at one end of the clutch flat bar 83. The handle 81 is manually driven to swing up and down, the linkage driving rack 84 is driven to reciprocate back and forth, the sliding seat 6 is driven to move forward through the cooperation of the driving rack 84 and the power tooth block 87, at the moment, the pushing seat 7 is propped against the piston rod 22 of the injector 2, and the piston rod 22 can not perform compression action because the flow control valve 9 is not opened yet, so that the pushing seat 7 is blocked to keep the position unchanged. With the slide seat 6 continuously moving forwards, the clockwork spring is forced to be straightened and stored, so that a load acts on the piston rod 22 of the injector 2, and the operation is simple and convenient.

The spring driving device 5 is arranged on the pushing seat 7 and is connected with the sliding seat 6, specifically, the spring driving device 5 comprises a winding shaft seat 51 and a clockwork spring 52, one end of the clockwork spring 52 is wound on the winding shaft seat 51, and the other end of the clockwork spring 52 is connected with the sliding seat 6. Preferably, the number of the spring driving devices 5 is two, and the spring driving devices are symmetrically arranged at two sides of the pushing seat 7, so that force is symmetrically applied, and the working stability is good. In other embodiments, the spring driving device 5 may also include a spring seat and a cylindrical spring, where one end of the cylindrical spring is connected to the spring seat, and the other end of the cylindrical spring is connected to the sliding seat 6, so as to achieve the purpose of driving the pushing seat 7 to push against the piston rod 22 of the injector 2, and only occupy a larger space.

When the portable mechanical structure injection pump is used, the following steps can be adopted:

s1: the output end of the syringe 2 filled with the drug solution is connected to a flow control valve 9. At this time, the scale of the flow control valve 9 is adjusted to the closed state.

S2: the needle cylinder 21 of the injector 2 passes through the through hole of the clamping seat 4, and when the holding plate moves to the clamping groove position, the holding plate is rotated by 90 degrees clockwise to be clamped into the clamping groove, so that the positioning and locking of the needle cylinder 21 of the injector 2 by the clamping seat 4 are realized, the injector 2 is prevented from rotating and being ejected in the injection process, and timely administration and injection precision are affected.

S3: after the syringe 2 has been mounted, the push seat 7 can be pressed against the piston rod 22 of the syringe 2. At this time, the handle 81 can be reciprocally cranked, the handle 81 drives the driving rack 84 to do reciprocal back and forth swinging motion through the connecting rod 82, when the driving rack 84 moves forward in an inclined way, the driving rack can be meshed with the power tooth block 87, and further the sliding seat 6 is driven to move in, during the moving process of the sliding seat 6, the piston rod 22 of the injector 2 acts on the pushing seat 7 in a reaction force manner, so that the pushing seat 7 keeps the initial position still, and only the clockwork spring 52 can be straightened to realize energy storage; and the driving rack 84 can be separated from the power tooth block 87 when being moved backwards in an inclined way, and meanwhile, the positioning tooth block 86 is continuously meshed with the positioning rack 85 to prevent the sliding seat 6 from being moved backwards; the slide 6 is moved in step by step to the desired position by so doing a number of times.

S4: the flow control valve 9 is opened in a rotating way to release the liquid medicine, the straightened clockwork spring 52 can naturally rewind to generate pulling force to act on the push seat 7, so that the push seat 7 moves forwards to generate pushing force to act on the piston rod 22 of the injector 2, the piston rod 22 is pushed forward to push out the liquid medicine at a relatively stable pressure, at the moment, the speed and time of injection can be controlled through the adjustment scale of the flow control valve 9, the influence of a power supply is avoided, the power supply and the power supply battery are not needed to be additionally arranged, the work is not stopped due to unexpected power failure, and the application range is wide.

S5: after the injection is completed, referring to fig. 7 and 8, the clutch flat bar 83 is rotated 90 ° clockwise through the clutch knob 88, one broad side of the clutch flat bar 83 pushes the power tooth block 87 to retract relative to the driving rack 84 to separate from the driving rack 84, and the other broad side of the clutch flat bar 83 pushes the positioning tooth block 86 to retract relative to the positioning rack 85 to separate from the positioning rack 85, so that the push seat 7 can be moved backwards to release the piston rod 22 of the injector 2. At this time, the cylinder 21 of the syringe 2 is rotated counterclockwise by 90 ° so that the grip plate is withdrawn from the catch groove, so that the syringe 2 can be taken out. In addition, when the special situation is met and injection needs to be stopped, the clutch knob can be opened to enable the positioning tooth block 86 and the power tooth block 87 to be correspondingly separated from the positioning rack 85 and the driving rack 84, so that the push seat 7 rebounds, the pressure of the piston rod 22 of the injector 2 is released, and injection pressure relief is realized.

Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way. Other pump configurations using the same or similar components as described in the above embodiments of the present utility model are within the scope of the present utility model.

Claims (8)

1. The utility model provides a portable mechanical structure syringe pump, its includes pedestal, its characterized in that: the device comprises a syringe, a slide rail, a clamping seat, a spring driving device, a slide seat, a pushing seat, a rack transmission mechanism and a flow control valve, wherein the slide rail is arranged on a seat body, the clamping seat is arranged on the seat body corresponding to the front end position of the slide rail, the slide seat and the pushing seat are movably arranged on the slide rail, the rack transmission mechanism is arranged on the seat body and can drive the slide seat to move towards the direction of the clamping seat, a needle cylinder of the syringe is arranged on the clamping seat, the piston rod of the syringe is pressed on the pushing seat, the spring driving device is arranged on the pushing seat and is connected with the slide seat, and the flow control valve is connected with the needle cylinder output end of the syringe.

2. The portable mechanical syringe pump of claim 1, wherein the holder is provided with a through hole for passing a syringe of the syringe, the syringe of the syringe is provided with a holding plate, and a slot for rotatably clamping the holding plate is provided on a wall of the through hole.

3. The portable mechanical syringe pump of claim 1 wherein the slide is provided with an opening through which a plunger rod of the syringe passes.

4. A portable mechanical syringe pump according to claim 3, wherein a barrel fitting the piston rod of the syringe is provided on the push base corresponding to the opening.

5. The portable mechanical syringe pump of claim 1 wherein the spring drive means comprises a spool base and a clockwork spring having one end wound on the spool base and the other end connected to the slide.

6. The portable mechanical syringe pump of claim 5 wherein the number of spring drives is two and symmetrically disposed on either side of the push base.

7. The portable mechanical injection pump according to any one of claims 1-6, wherein the rack transmission mechanism comprises a handle, a connecting rod, a clutch flat bar, a driving rack, a positioning tooth block and a power tooth block, the positioning rack is arranged on the side wall of the sliding rail, a sliding part is arranged on one side of the front part of the sliding seat, a horizontal long hole is arranged on the sliding part, a mounting part is arranged on one side of the tail part of the sliding seat, a shaft hole and an arc sliding hole are arranged on the mounting part, one end of the handle is hinged on the shaft hole, the driving rack is arranged on the connecting rod, one end of the connecting rod is provided with a front sliding shaft, the front sliding shaft is positioned in the horizontal long hole, the other end of the connecting rod is provided with a rear sliding shaft, the rear sliding shaft penetrates through the arc sliding hole and is connected to the handle, the positioning tooth block and the power tooth block are sequentially arranged at the bottom of the sliding seat, ratchets of the positioning tooth block face the positioning rack and meshed with the positioning tooth block, ratchets of the power tooth block face the driving rack, one end of the driving rack is hinged with the driving rack, one end of the handle is hinged with the corresponding positioning tooth block, and the clutch flat bar is meshed with the driving rack in turn, and the positioning tooth block can be meshed with the corresponding positioning tooth block or the driving rack.

8. The portable mechanical syringe pump of claim 1 further comprising a housing that fits over the housing.

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