Low-temperature reagent storage cabinet

Abstract

The utility model discloses a reagent low-temperature storage cabinet which comprises a low-temperature cabinet body (1), a swing type storage rack (2) is arranged in the middle of the interior of the low-temperature cabinet body (1), and drawing type storage racks (3) are arranged on the upper side and the lower side of the swing type storage rack (2) respectively. A rotating shaft (4) is arranged in the middle of the rear end of the swing type storage rack (2) and connected with a reciprocating swing driving mechanism (5) fixed to the back face of the low-temperature cabinet body (1). A plurality of partition strips (6) which are distributed side by side are arranged on the surface of the swing type storage rack (2), and a test tube rack placement cavity (7) is formed between every two adjacent partition strips (6); a clamping plate (8) is arranged on the side face of the partition strip (6), and a first telescopic rod (9) and a first spring (10) are arranged between the clamping plate (8) and the side wall face of the partition strip (6). The device has the characteristic that the phenomena of precipitation and layering can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to a reagent low-temperature storage cabinet, in particular to a reagent low-temperature storage cabinet. Background Art

[0002] For some biological reagents, they need to be placed in a low-temperature reagent storage cabinet for storage after preparation. At present, the existing low-temperature reagent storage cabinet generally includes a cabinet body, a refrigeration module, a cabinet door, and a multi-layer storage rack arranged up and down in the cabinet body. The reagent is generally placed in a reagent tube, and the reagent tube is placed on the reagent rack. The staff will place the reagent rack with the reagent tube on the storage rack layer. However, the storage rack of the existing low-temperature storage cabinet is generally fixed, and the reagent in the reagent tube may cause precipitation and stratification when stored at low temperature for a long time, thereby affecting the storage effect of the reagent. Therefore, the existing technology has the problem that precipitation, stratification, etc. may occur during long-term storage. Utility Model Content

[0003] The purpose of the utility model is to provide a reagent low-temperature storage cabinet, which has the characteristics of effectively preventing precipitation and stratification.

[0004] The technical solution of the utility model is as follows: a reagent low-temperature storage cabinet comprises a low-temperature cabinet main body, a swing-type storage rack is provided in the middle of the low-temperature cabinet main body, and pull-out storage racks are provided on the upper and lower sides of the swing-type storage rack respectively; a rotating shaft is provided in the middle of the rear end of the swing-type storage rack, and the rotating shaft is connected to a reciprocating swing driving mechanism fixed to the back of the low-temperature cabinet main body; a plurality of partition bars distributed side by side are provided on the surface of the swing-type storage rack, and a test tube rack placement cavity is provided between adjacent partition bars; a clamping plate is provided on the side of the partition bar, and a first telescopic rod and a first spring are provided between the clamping plate and the side wall of the partition bar.

[0005] In the aforementioned reagent low-temperature storage cabinet, the front end of the clamping plate is provided with an inclined guide plate which is rotatably connected to the clamping plate.

[0006] In the aforementioned reagent low-temperature storage cabinet, telescopic limit protrusions are provided on the left and right inner wall surfaces of the low-temperature cabinet body, which are located below the swing-type storage rack when it is in a horizontal state; a groove is provided on the inner wall surface of the low-temperature cabinet body, and an electromagnet is provided in the groove. A concave hole is provided in the middle of the electromagnet, and a second telescopic rod and a telescopic spring are provided in the concave hole. A magnetic sheet is provided at the end of the second telescopic rod, and the outside of the magnetic sheet is connected to the telescopic limit protrusion.

[0007] Compared with the prior art, the utility model provides a swing-type storage rack that is driven by a reciprocating swing drive mechanism to reciprocate in a small range, and regularly shakes the reagents placed on it to simulate artificial swinging, so that the reagents inside the reagent tubes are in a mixed state, thereby effectively preventing precipitation and stratification. At the same time, the present application clamps the test tube rack by providing a test tube rack clamping assembly to ensure the stability of the test tube rack during the shaking process and ensure smooth swinging. In summary, the utility model has the characteristics of being able to effectively prevent precipitation and stratification during long-term storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model;

[0009] Figure 2 It is a top view of the swing type storage rack;

[0010] Figure 3 is a top view of the telescopic limiting protrusion;

[0011] Figure 4 yes Figure 3 A partial enlarged view of .

[0012] The markings in the accompanying drawings are: 1-low temperature cabinet body, 2-swinging storage rack, 3-pull-out storage rack, 4-rotating axis, 5-reciprocating swing driving mechanism, 6-partitioning partition bar, 7-test tube rack placement cavity, 8-clamping plate, 9-first telescopic rod, 10-first spring, 11-inclined guide plate, 12-telescopic limiting protrusion, 13-groove, 14-second telescopic rod, 15-telescopic spring, 16-electromagnet, 17-magnetic sheet. DETAILED DESCRIPTION

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0014] Embodiment. A reagent low temperature storage cabinet is composed of Figure 1-4 As shown, it includes a low-temperature cabinet body 1, a swing-type storage rack 2 is provided in the middle of the low-temperature cabinet body 1, and pull-out storage racks 3 are provided on the upper and lower sides of the swing-type storage rack 2 respectively; a rotating shaft 4 is provided in the middle of the rear end of the swing-type storage rack 2, and the rotating shaft 4 is connected to a reciprocating swing driving mechanism 5 fixed to the back of the low-temperature cabinet body 1; a plurality of partition bars 6 distributed side by side are provided on the surface of the swing-type storage rack 2, and a test tube rack placement cavity 7 is provided between adjacent partition bars 6; a clamping plate 8 is provided on the side of the partition bar 6, and a first telescopic rod 9 and a first spring 10 are provided between the clamping plate 8 and the side wall of the partition bar 6.

[0015] An inclined guide plate 11 is provided at the front end of the clamping plate 8 , and the inclined guide plate 11 and the clamping plate 8 are rotatably connected.

[0016] The left and right inner wall surfaces of the low-temperature cabinet body 1 are both provided with telescopic limiting protrusions 12 located below the swing-type storage rack 2 when in a horizontal state; the inner wall surface of the low-temperature cabinet body 1 is provided with a groove 13, an electromagnet 16 in the groove 13, a concave hole is provided in the middle of the electromagnet 16, a second telescopic rod 14 and a telescopic spring 15 are provided in the concave hole, a magnetic sheet 17 is provided at the end of the second telescopic rod 14, and the outside of the magnetic sheet 17 is connected to the telescopic limiting protrusion 12.

[0017] The reciprocating swing driving mechanism comprises a rotating gear connected to the rotating shaft, a rack is arranged below the rotating gear, a slide rail is arranged below the rack, and a reciprocating cylinder is connected to one end of the rack.

[0018] The reciprocating cylinder makes reciprocating motion, driving the rack to move back and forth along the slide rail. The rack drives the rotating gear meshing with it to rotate, and then drives the rotating shaft to rotate at a corresponding angle. Finally, the swing type shelf swings slowly and slightly within the set angle, shaking the reagents in the reagent tubes to prevent precipitation and stratification due to long-term storage.

[0019] Preferably, a rotation position sensor is provided on one side of the inner wall surface of the low temperature cabinet body, which is located on the upper and lower sides of the telescopic limit protrusion, so as to further monitor the swing angle and position of the swing type storage rack.

[0020] The first spring is sleeved on the first telescopic rod.

[0021] A torsion spring is arranged on the rotating shaft between the inclined guide plate and the clamping plate to facilitate the reset of the inclined guide plate.

[0022] Preferably, the upper surface of the swing-type storage rack is provided with a transverse adjustment slot, and a slider matching the transverse adjustment slot is provided below the partition bar; the front end of the partition bar is provided with a clamp matching the swing-type storage rack, and the clamp is locked by a locking nut. In this way, the partition bar can be adjusted accordingly according to the width of different test tube racks to adapt to test tube racks of different sizes.

[0023] The working process of the utility model is as follows: a test tube rack containing reagent tubes to be refrigerated is placed in the test tube rack placement cavity, the clamping plates on the left and right sides clamp the test tube rack under the left and right forces of the springs, and then the door is closed, so that the reagents are in a refrigerated environment; in order to keep the reagents in the reagent tubes always mixed evenly, the reciprocating swing driving mechanism is operated to drive the swing type storage rack to swing in a small range, and the reagent tubes on the swing type storage rack are reciprocatedly shaken.

[0024] When the swing type storage rack is in a non-swinging state (i.e., horizontal state), the electromagnet is powered off, and the telescopic limit protrusion extends under the action of the spring force to limit the swing type storage rack; when it needs to be swung, the electromagnet is powered on, the magnetic sheet is attracted, and the telescopic spring is compressed, so that the telescopic limit protrusion moves into the groove and loses its limiting effect.

Claims

1. Reagent low temperature storage cabinet, characterized by: The invention comprises a low temperature cabinet body (1), wherein a swing-type storage rack (2) is provided in the middle of the low temperature cabinet body (1), and pull-out storage racks (3) are provided on the upper and lower sides of the swing-type storage rack (2); a rotating shaft (4) is provided in the middle of the rear end of the swing-type storage rack (2), and the rotating shaft (4) is connected to a reciprocating swing driving mechanism (5) fixed to the back of the low temperature cabinet body (1); a plurality of partition bars (6) arranged side by side are provided on the surface of the swing-type storage rack (2), and a test tube rack placement cavity (7) is provided between adjacent partition bars (6); a clamping plate (8) is provided on the side of the partition bar (6), and a first telescopic rod (9) and a first spring (10) are provided between the clamping plate (8) and the side wall of the partition bar (6).

2. The reagent low temperature storage cabinet according to claim 1, characterized in that: An inclined guide plate (11) is provided at the front end of the clamping plate (8), and the inclined guide plate (11) and the clamping plate (8) are rotatably connected.

3. The reagent low temperature storage cabinet according to claim 1, characterized in that: The left and right inner wall surfaces of the low-temperature cabinet body (1) are both provided with telescopic limiting protrusions (12) located below the swing-type storage rack (2) when in a horizontal state; the inner wall surface of the low-temperature cabinet body (1) is provided with a groove (13), an electromagnet (16) in the groove (13), a concave hole is provided in the middle of the electromagnet (16), a second telescopic rod (14) and a telescopic spring (15) are provided in the concave hole, a magnetic sheet (17) is provided at the end of the second telescopic rod (14), and the outside of the magnetic sheet (17) is connected to the telescopic limiting protrusion (12).

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