CN211835654U - Automatic clamping mechanism for syringe of injection pump - Google Patents
Automatic clamping mechanism for syringe of injection pump Download PDFInfo
- Publication number
- CN211835654U CN211835654U CN201921838222.5U CN201921838222U CN211835654U CN 211835654 U CN211835654 U CN 211835654U CN 201921838222 U CN201921838222 U CN 201921838222U CN 211835654 U CN211835654 U CN 211835654U
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- China
- Prior art keywords
- syringe
- lantern ring
- inner shaft
- nut
- rack
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Abstract
The utility model provides an automatic fixture of syringe pump cylinder, be in including frame and setting actuating mechanism in the frame still includes: the screw rod is connected with the driving mechanism and can rotate under the driving of the driving mechanism; the driven part comprises a nut, a lantern ring and a cross rod which connects the nut and the lantern ring side by side, and the nut is connected to the screw rod through threads; an inner shaft comprising a first end and a second end, the first end being connected to the collar by a bearing; the guide sleeve is sleeved with the inner shaft and fixed on the rack, a longitudinal guide groove is formed in the side wall of the guide sleeve, the lantern ring is contained in the guide sleeve, and the cross rod is located in the guide groove. The utility model discloses a follower converts the rotary motion of lead screw into up-and-down motion, and interior axle is the up-and-down motion under the drive of the follower lantern ring for the clamp of the lower extreme of axle in the connection is close to or keeps away from the frame, realizes automatic centre gripping or loosens the action.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, especially, relate to an automatic fixture of syringe pump cylinder.
Background
In some medical injections, a syringe pump is used to inject the drug because of the patient-specific and strict requirements for the rate of injection of certain drugs. In the injection operation, a syringe needs to be clamped on the injection pump, the clamp of the syringe of the existing injection pump adopts a manual clamping type, and the operation is inconvenient because the elasticity of a clamp spring is larger.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an automatic fixture of syringe pump cylinder is provided aims at solving the inconvenient problem of current manual centre gripping formula mechanism operation.
In order to solve the technical problem, the utility model discloses a realize like this, an automatic fixture of syringe pump cylinder, be in including frame and setting actuating mechanism in the frame still includes:
the screw rod is connected with the driving mechanism and can rotate under the driving of the driving mechanism;
the driven part comprises a nut, a lantern ring and a cross rod which connects the nut and the lantern ring side by side, and the nut is connected to the screw rod through threads;
an inner shaft comprising a first end and a second end, the first end being connected to the collar by a bearing;
the guide sleeve is sleeved with the inner shaft and fixed on the rack, a longitudinal guide groove is formed in the side wall of the guide sleeve, the lantern ring is contained in the guide sleeve, and the cross rod is located in the guide groove.
And the clamp is connected to the second end of the inner shaft and forms a clamping structure with the rack.
Further, the guide groove comprises a linear groove and a spiral groove communicated with the linear groove from top to bottom;
and a guide post is arranged on one side of the inner shaft close to the spiral groove and is positioned in the guide groove.
Further, the drive mechanism includes:
the motor is arranged on the rack;
and the gear mechanism comprises a driving wheel and a driven wheel, the driving wheel is connected with the motor, and the driven wheel is connected with the screw rod.
Further, the automatic clamping mechanism for the syringe of the injection pump further comprises:
and the clamping piece is positioned right above the inlet close to the needle cylinder on the rack and used for clamping a flange of the needle cylinder to pre-fix the needle cylinder.
Further, the clamping piece is connected with the rack through a spring.
Compared with the prior art, the utility model, beneficial effect lies in: the utility model discloses a follower converts the rotary motion of lead screw into up-and-down motion, and interior axle is the up-and-down motion under the drive of the follower lantern ring for the clamp of the lower extreme of axle in the connection is close to or keeps away from the frame, realizes automatic centre gripping or loosens the action.
Drawings
Fig. 1 is a perspective view of an embodiment of an automatic clamping mechanism for a syringe of an injection pump.
Fig. 2 is an exploded view of an embodiment of the automatic clamping mechanism for syringe of the syringe pump of the present invention.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a perspective view of the follower.
Fig. 5 is a perspective view of another embodiment of the automatic syringe clamping mechanism of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides an embodiment of automatic fixture of syringe pump cylinder, as shown in the stereogram of figure 1, the explosion chart of figure 2 and the cross-sectional view of figure 3, including frame 1, actuating mechanism 2, lead screw 3, follower 4, interior axle 5, uide bushing 6 and clamp 7. The driving mechanism 2 is arranged on the frame 1, and the screw rod 3 is connected with the driving mechanism 2 and can rotate under the driving of the driving mechanism 2. Specifically, actuating mechanism 2 can be gear structure, including motor 21, action wheel 22 and follow driving wheel 23, motor 21 sets up in the frame, and action wheel 22 is connected with motor 21, follows driving wheel 23 and is connected with lead screw 3, the utility model discloses not prescribing a limit to actuating mechanism 2, as long as can drive 3 pivoted mechanisms of lead screw all. The driven member 4 comprises a nut 41, a collar 42 and a cross rod 43 as shown in fig. 4, wherein the nut 41 and the collar 42 are connected side by side through the cross rod 43, and the nut 41 is connected to the screw rod 3 through threads. The inner shaft 5 comprises a first end 51 and a second end 52, the first end 51 being bearing connected with the collar 42. The guide sleeve 6 is sleeved with the inner shaft 5 and fixed on the rack 1, a longitudinal guide groove 61 is formed in the side wall of the guide sleeve 6, the lantern ring 42 is contained in the guide sleeve 6, and the cross rod 43 is located in the guide groove 61. The clamp 7 is connected to the second end 52 of the inner shaft and forms a clamping structure with the chassis 1, fig. 1 shows the use state after clamping the syringe, and fig. 3 shows a cross-sectional view of the clamping state.
The working principle of the automatic syringe clamping mechanism of the injection pump of the embodiment is as follows: the motor 21 drives the gear to drive the screw rod 3 to rotate, and the nut 41 cannot rotate along with the screw rod 3 due to the fact that the cross rod 43 of the driven part 4 is clamped in the guide groove 61, so that the screw rod 3 can move up and down relatively, namely the driven part 4 converts the rotary motion of the screw rod into up and down motion, the inner shaft 5 is driven by the lantern ring 42 to move up and down, the clamp 7 connected to the lower end of the inner shaft 5 is close to or far away from the rack 1, and automatic clamping or loosening action is achieved.
Further, in order to facilitate taking and placing the syringe, the end of the guide groove 61 may be formed in a spiral shape as shown in fig. 2. Specifically, the guide groove 61 includes, from top to bottom, a linear groove 611 and a spiral groove 612, which are communicated with each other, and the guide post 53 is provided on the inner shaft 5 on a side close to the spiral groove 612, and the guide post 53 is located in the guide groove 61. When the inner shaft 5 moves downwards, the guide column 53 moves downwards along the linear groove 611, when the inner shaft 5 moves into the spiral groove 612, the inner shaft 5 also rotates, and the clamp 7 rotates for an angle while being released, so that the needle cylinder is avoided, and the taking is convenient.
Further, in order to facilitate pre-assembling the syringe, a clamping piece 8 may be disposed on the rack 1 directly above the inlet of the syringe, as shown in fig. 5, after the syringe is placed on the rack 1, the clamping piece 8 is used to clamp the flange of the syringe, so as to achieve the pre-positioning function. Preferably, the clamping piece 8 is connected with the frame 1 through a spring 9, and the operation is convenient.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides an automatic fixture of syringe pump cylinder, includes the frame and sets up actuating mechanism in the frame, its characterized in that still includes:
the screw rod is connected with the driving mechanism and can rotate under the driving of the driving mechanism;
the driven part comprises a nut, a lantern ring and a cross rod which connects the nut and the lantern ring side by side, and the nut is connected to the screw rod through threads;
an inner shaft comprising a first end and a second end, the first end being connected to the collar by a bearing;
the guide sleeve is sleeved with the inner shaft and fixed on the rack, a longitudinal guide groove is formed in the side wall of the guide sleeve, the lantern ring is contained in the guide sleeve, and the cross rod is located in the guide groove;
and the clamp is connected to the second end of the inner shaft and forms a clamping structure with the rack.
2. The syringe auto-gripper mechanism of claim 1, wherein,
the guide groove comprises a linear groove and a spiral groove communicated with the linear groove from top to bottom;
and a guide post is arranged on one side of the inner shaft close to the spiral groove and is positioned in the guide groove.
3. The syringe auto-gripper mechanism of claim 1, wherein the drive mechanism comprises:
the motor is arranged on the rack;
and the gear mechanism comprises a driving wheel and a driven wheel, the driving wheel is connected with the motor, and the driven wheel is connected with the screw rod.
4. The syringe pump syringe automatic gripper mechanism of claim 1, further comprising:
and the clamping piece is positioned right above the inlet close to the needle cylinder on the rack and used for clamping a flange of the needle cylinder to pre-fix the needle cylinder.
5. The syringe auto-gripper mechanism of claim 4, wherein the clip is spring-coupled to the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921838222.5U CN211835654U (en) | 2019-10-29 | 2019-10-29 | Automatic clamping mechanism for syringe of injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921838222.5U CN211835654U (en) | 2019-10-29 | 2019-10-29 | Automatic clamping mechanism for syringe of injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211835654U true CN211835654U (en) | 2020-11-03 |
Family
ID=73129862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921838222.5U Active CN211835654U (en) | 2019-10-29 | 2019-10-29 | Automatic clamping mechanism for syringe of injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211835654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469278A (en) * | 2022-01-19 | 2022-05-13 | 刘前生 | Orthopedics department joint hydrops extraction equipment |
-
2019
- 2019-10-29 CN CN201921838222.5U patent/CN211835654U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114469278A (en) * | 2022-01-19 | 2022-05-13 | 刘前生 | Orthopedics department joint hydrops extraction equipment |
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