一种用于推注器的测量夹具

Abstract

本实用新型提供了一种用于推注器的测量夹具，包括固定机构和推进机构，固定机构包括：顶部设有第一凹槽的第一柱台、与第一柱台的底部连接的第二柱台；设置在第一柱台与第二柱台之间的第三柱台；所述第三柱台的顶部设有第二凹槽，第三柱台与所述第一柱台之间形成第三凹槽；推进机构设置在第二柱台内，能靠近或远离第三柱台移动来控制推注器的推杆的运动。本测量夹具通过固定机构中第一凹槽和第二凹槽来对推注器的外筒和推杆限位，并利用第三凹槽来对外筒手柄限位，结合推进机构控制推杆的运动实现不同推进量下的轴线偏离测量。本测量夹具结构简单，测定效率高，测量误差小。

Claims

1. A measuring jig for a syringe, characterized in that, It includes: Fixed mechanism, which includes: The first column base has a first groove on its top. The bottom of the second column is connected to the bottom of the first column; A third column is disposed between the first column and the second column, and the top of the third column has a second groove, forming a third groove between the third column and the first column; and The propulsion mechanism, which is located within the second column, is capable of moving closer to or further away from the third column to control the movement of the push rod of the injector.

2. The measuring jig for a syringe according to claim 1, characterized in that, The fixing mechanism also includes: A connecting rod, one end of which is connected to the bottom of the first column; and A fourth column is connected to the other end of the connecting rod, and the top of the fourth column is provided with a fourth groove.

3. The gauge for a syringe of claim 1, wherein, The connection between the third column and the second column is marked with graduations.

4. The measuring jig for a syringe according to any one of claims 1 to 3, characterized in that, The first groove engages with the outer cylinder of the injector, and the second groove engages with the push rod of the injector.

5. The measuring jig for a syringe according to claim 1 or 2, characterized in that, The propulsion mechanism includes: A fixing block, which is disposed within the second column; and A push rod, which rotatably engages with the fixed block, to control the movement of the push rod via the push rod handle of the injector.

6. The gauge for a syringe of claim 4, wherein, The third groove is a T-shaped groove, which is used to cooperate with the outer cylinder handle of the injector to restrict the movement of the outer cylinder handle in the horizontal and vertical directions.

7. The measuring fixture for an injector according to claim 6, characterized in that, The width D1 of the third groove along the horizontal direction matches the second width d1 of the outer barrel handle of the injector; the width D2 of the third groove along the vertical direction matches the second width d2 of the outer barrel handle of the injector, wherein the first width d1 of the outer barrel handle is smaller than the second width d2 of the outer barrel handle; The depth of the third groove along the vertical direction is at least greater than the first length d3 of the outer barrel handle of the injector.

8. The gauge for a syringe of claim 2, wherein, The first column, the third column, and the fourth column are all at the same height, and the axes of the first groove, the second groove, and the fourth groove are all aligned.

9. The gauge for a syringe of claim 2, wherein, The distance D0 between the third column and the fourth column is less than the length d0 from the outer cylinder handle of the injector to its far end; the thickness D4 of the third column is less than or equal to the maximum distance d4 from the outer cylinder handle of the injector to the push rod handle when the push rod of the injector is pushed to its maximum stroke.

10. The gauge for a syringe of claim 2 or 8, wherein, The groove shapes of the first, second, and fourth grooves are selected from semi-circular grooves, V-shaped grooves, or U-shaped grooves.

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