Test tube clamping mechanism in test tube cover removing device

Abstract

The invention discloses a test tube clamping mechanism in a test tube cover removing device. The test tube clamping mechanism in the test tube cover removing device comprises test tube clamping devices arranged horizontally; the test tube clamping devices are fixedly connected to an installation seat; cams are fixedly connected to the other side of the installation seat; cam guide plates with guide oblique surfaces are arranged in front of the cams; the cams face to the guide oblique surfaces; the cam guide plates can be supported on a rack through linear guide rail pairs in a sliding mode, and are fixedly connected with toothed bars; a motor drives gears on the shaft end, the gears and the toothed bars are in meshed transmission so as to drive the cam guide plates to perform ascending and descending motions along linear guide rails in the linear guide rail pairs, and the guide oblique surfaces of the cam guide plates control the cams to move, so that the test tube clamping devices can be pushed to move longitudinally; the test tube clamping devices comprise a first test tube clamping device and a second test tube clamping device, and the first test tube clamping device and the second test tube clamping device are closed or loosened through the longitudinal moving of the first test tube clamping device and the second test tube clamping device. The test tube clamping mechanism in the test tube cover removing device provided by the invention can clamp a plurality of test tubes, is high in efficiency, and is reliable in running.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a device capable of automatically removing caps on test tubes containing samples such as blood, and in particular to a device for clamping the body of a test tube in a test tube cap removing device. Background technique [0002] After the collection of samples such as blood is completed, the test and analysis equipment must be used to detect and analyze the samples in the test tube. The sample needs to be opened before entering the test and analysis instrument. Among them, the manual opening method is inefficient and has potential hazards of contamination such as laboratory-acquired infection, while the automatic machine opening method has the characteristics of high efficiency and no pollution. The automatic cap opening method of the machine usually uses a set of test tube body clamps and a set of test tube cover clamps. On the basis of clamping the test tube with the tu...

AI Technical Summary

Problems solved by technology

[0002] After the collection of samples such as blood is completed, the test and analysis equipment must be used to detect and analyze the samples in the test tube. The sample needs to be opened before entering the test and analysis instrument. Among them, the manual opening method is inefficient and has potential hazards of contamination such as laboratory-acquired infections, while the automatic machine opening method has the characteristics of high efficiency and no pollution

The automatic cap opening method of the machine usually uses a set of test tube body clamps and a set of test tube cover clamps. On the basis of clamping the test tube with the tube body clamps, the test tube cover is clamped by the cover clamp and the test tube cover is pulled out. The prior art The clamp structure for clamping the test tube body usually uses a cylinder to drive a pressure contact roller or a clamp that can fit the test tube body to clamp the test tube from both sides. There is also a motor shaft connected to the cam, and the motor directly drives the cam to rotate. Therefore, the structure that the clamp is pushed by the cam to perform the clamping operation, the disadvantage of the former structure is that it can only be used for the clamping operation of a single test tube, and the efficiency is low; the latter structure can clamp multiple test tubes at one time, but its A jig that can hold multiple test tubes is driven by a cam. The jig is long. The rotation of the cam will make the stress point of the jig constantly change, so the movement of the left and right ends of the jig will be inconsistent and uncoordinated. When holding multiple test tubes , cannot hold all test tubes in place

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