Blending device

Abstract

The utility model discloses a blending device. The blending device comprises a blending bracket, a blending motor, a transmission assembly, a rotating shaft and a blending seat, the uniform mixing support is provided with a limiting seat, the limiting seat is provided with a limiting hole penetrating up and down, and a limiting bearing is matched in the limiting hole; the blending motor is installed on the blending support and located below the limiting seat, the blending motor is in transmission connection with the rotating shaft through the transmission assembly, and the rotating shaft penetrates through the limiting bearing and is matched with an inner ring of the limiting bearing; the uniform mixing seat is connected with the upper end of the rotating shaft, the uniform mixing seat and the rotating shaft are eccentrically arranged, and the uniform mixing seat is located above the limiting seat. The utility model has the advantages of stable operation and balanced force application to the reaction cup.

Description

Technical Field

[0001] The utility model relates to the field of immunoassay analyzers, in particular to a mixing device. Background Art

[0002] Existing immunoassay analyzers are equipped with multiple mixing devices, which shake the reaction cup to mix the various reactants in the reaction cup. However, many mixing devices use eccentric swing mixing to mix, which drives the rotating shaft to rotate so that the rotating shaft drives the mixing seat eccentrically arranged with the rotating shaft to rotate eccentrically, so that the mixing seat drives the bottom of the reaction cup to make eccentric circular motion, thereby mixing the reactants in the reaction cup. However, the rotating shaft of the existing mixing device has an eccentric swing problem when rotating, which causes uneven force on the reaction cup, affects the mixing effect, and may also cause the reactants in the reaction cup to splash out.

[0003] In view of the existence of the above problems, it is necessary to study a mixing device that operates smoothly and applies balanced force to the reaction cup. Utility Model Content

[0004] The utility model aims to provide a mixing device which operates stably and applies force evenly to a reaction cup.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A mixing device comprises a mixing bracket, a mixing motor, a transmission assembly, a rotating shaft and a mixing seat; the mixing bracket is provided with a limit seat, the limit seat is provided with a limit hole which passes through the upper and lower parts, and a limit bearing is matched in the limit hole; the mixing motor is installed on the mixing bracket and is located below the limit seat, the mixing motor is connected to the rotating shaft through the transmission assembly, the rotating shaft passes through the limit bearing and matches with the inner ring of the limit bearing; the mixing seat is connected to the upper end of the rotating shaft, the mixing seat and the rotating shaft are eccentrically arranged and the mixing seat is located above the limit seat.

[0007] The mixing bracket is also provided with a support seat located below the limiting seat, and the mixing motor is installed on the support seat.

[0008] The transmission assembly includes a transmission screw and a transmission nut; the transmission screw is connected to the mixing motor, the top of the transmission screw is matched with a limiting block, the transmission nut is threadedly connected to the transmission screw and the transmission nut can slide freely on the transmission screw, the transmission nut movably rests on the lower side of the limiting block and is coaxially connected to the rotating shaft, and the rotating shaft is sleeved with the transmission screw.

[0009] The mixing support is equipped with a position sensor for monitoring whether the rotating shaft rises.

[0010] The transmission screw rod is sleeved with an elastic washer, and the elastic washer is located at the lower side of the limit block.

[0011] The mixing motor is connected to the transmission screw rod through a coupling, and the top of the coupling rod is equipped with an elastic gasket.

[0012] The mixing seat is detachably connected to the upper end of the rotating shaft through the universal seat, the universal seat is connected to the mixing seat, and the universal seat is detachably connected to the upper end of the rotating shaft.

[0013] The universal seat is locked with the upper end of the rotating shaft through a pin.

[0014] The mixing seat is rotatably connected to the universal seat.

[0015] The upper end surface of the mixing seat is provided with at least one groove.

[0016] After adopting the above scheme, the utility model sets a limit bearing on the limit seat of the mixing bracket, and the limit bearing is sleeved with the rotating shaft. The limit bearing can limit the rotating shaft, so that the rotating shaft will not swing when rotating. In this way, the mixing device of the utility model can run smoothly and apply balanced force to the reaction cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0018] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0019] Figure 3 The utility model is a cross-sectional view Figure 1 .

[0020] Figure 4 The utility model is a cross-sectional view Figure 2 .

[0021] Description of labels:

[0022] Mixing bracket 1, limiting seat 11, limiting hole 111, supporting seat 12, supporting rod 13,

[0023] Mixing motor 2,

[0024] Transmission assembly 3, transmission screw 31, transmission nut 32, limit block 33, elastic washer 34,

[0025] Rotation axis 4,

[0026] Mixing seat 5, groove 51,

[0027] Limit bearing 6,

[0028] Coupling 7, elastic gasket 71,

[0029] Universal seat 8,

[0030] Position sensor 9. DETAILED DESCRIPTION

[0031] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0032] like Figures 1 to 4 As shown, the utility model discloses a mixing device, which includes a mixing bracket 1, a mixing motor 2, a transmission assembly 3, a rotating shaft 4 and a mixing seat 5; the mixing bracket 1 is provided with a limit seat 11, the limit seat 11 is provided with a limit hole 111 which passes through from top to bottom, and a limit bearing 6 is matched in the limit hole 111; the mixing motor 2 is installed on the mixing bracket 1 and is located below the limit seat 11, the mixing motor 2 is connected to the rotating shaft 4 through the transmission assembly 3, the mixing motor 2 can drive the rotating shaft 4 to rotate, the rotating shaft 4 passes through the limit bearing 6 and matches with the inner ring of the limit bearing 6; the mixing seat 5 is connected to the upper end of the rotating shaft 4, the mixing seat 5 is eccentrically arranged with the rotating shaft 4 and the mixing seat 5 is located above the limit seat 11.

[0033] In the utility model, a limit bearing 6 is arranged on the limit seat 11 of the mixing bracket 1, and the limit bearing 6 is sleeved with the rotating shaft 4. The limit bearing 6 can limit the rotating shaft 4, so that the rotating shaft 4 will not swing when rotating. In this way, the mixing device of the utility model can run smoothly and apply force to the reaction cup evenly.

[0034] In an embodiment of the utility model, the mixing bracket 1 is also provided with a support seat 12 located below the limit seat 11, the support seat 12 is connected to the limit seat 11 through a support rod 13, and the mixing motor 2 is installed on the support seat 12, and the mixing motor 2 and the support seat 12 can be locked by screws.

[0035] In the embodiment of the utility model, the transmission assembly 3 includes a transmission screw 31 and a transmission nut 32; the transmission screw 31 is connected to the mixing motor 2, the top of the transmission screw 31 is matched with a limit block 33, the transmission nut 32 is threaded with the transmission screw 31 and the transmission nut 32 can slide freely on the transmission screw 31, the transmission nut 32 is movably pressed against the lower side of the limit block 33 and is coaxially connected to the rotating shaft 4, and the rotating shaft 4 is sleeved with the transmission screw 31. The utility model can drive the rotating shaft 4 to rotate and also make the rotating shaft 4 rise and fall through the arrangement of the transmission assembly 3. The working principle of the utility model is as follows: when the mixing motor 2 does not drive the transmission screw 31 to rotate, the transmission nut 32 and the rotating shaft 4 will drive the mixing seat 5 to slide down to the lowest position due to their own weight; and when the mixing motor 2 drives the transmission screw 31 to rotate at a high speed, the transmission nut 32 and the rotating shaft 4 will first rotate relative to the transmission screw 31 due to static inertia, so that the transmission nut 32, the rotating shaft 4 and the mixing seat 5 will rise upward along the transmission screw 31; when the transmission nut 32 rises to the limit block 33, the transmission nut 32, the rotating shaft 4 and the mixing seat 5 no longer rise, and the transmission nut 32 and the rotating shaft 4 will rotate together with the transmission screw 31, so that the mixing seat 5 performs eccentric circular motion.

[0036] In an embodiment of the utility model, the mixing bracket 1 may be installed with a position sensor 9 for monitoring whether the rotating shaft 4 rises, and the position sensor 9 may adopt an infrared proximity switch; when the mixing motor 2 drives the transmission screw 31 to rotate at high speed, if the position sensor 9 does not detect that the rotating shaft 4 rises to the set position, at this time, a mixing device of the utility model fails, and the position sensor 9 can alarm externally.

[0037] In an embodiment of the utility model, the transmission screw 31 may be sleeved with an elastic washer 34 , which is located at the lower side of the limit block 33 . The elastic washer 34 may buffer the transmission nut 32 and prevent the transmission nut 32 from hitting the limit block 33 .

[0038] In an embodiment of the utility model, the mixing motor 2 is connected to the transmission screw 31 through a coupling 7. The top of the coupling 7 is equipped with an elastic gasket 71. The elastic gasket 71 can also buffer the transmission nut 32 and prevent the transmission nut 32 from hitting the coupling 7.

[0039] In the embodiment of the utility model, the mixing seat 5 is detachably connected to the upper end of the rotating shaft 4 through the universal seat 8, the universal seat 8 is connected to the mixing seat 5, and the universal seat 8 is detachably connected to the upper end of the rotating shaft 4; such a configuration allows the utility model to install the mixing seat 5 of different models to the rotating shaft 4 through the universal seat 8, thereby improving the flexibility of use of a mixing device of the utility model. Specifically, the universal seat 8 is locked with the upper end of the rotating shaft 4 through a pin, so that the universal seat 8 and the rotating shaft 4 are easy to disassemble and assemble; and the mixing seat 5 is rotatably connected to the universal seat 8, so that the mixing seat 5 can rotate while performing eccentric circular motion, which can effectively improve the mixing effect of the reactants in the reaction cup, and the upper end surface of the mixing seat 5 is provided with at least one groove 51, which is used to cooperate with the bottom of the reaction cup so that the bottom of the reaction cup can move with the mixing seat 5.

[0040] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A mixing device, characterized in that: It includes a mixing bracket, a mixing motor, a transmission component, a rotating shaft and a mixing seat; The mixing bracket is provided with a limit seat, the limit seat is provided with a limit hole running through from top to bottom, and a limit bearing is fitted in the limit hole; The mixing motor is installed on the mixing bracket and is located below the limit seat. The mixing motor is connected to the rotating shaft through the transmission assembly. The rotating shaft passes through the limit bearing and matches the inner ring of the limit bearing. The mixing seat is connected to the upper end of the rotating shaft, the mixing seat and the rotating shaft are eccentrically arranged and the mixing seat is located above the limiting seat.

2. A mixing device as claimed in claim 1, characterized in that: The mixing bracket is also provided with a support seat located below the limiting seat, and the mixing motor is installed on the support seat.

3. A mixing device as claimed in claim 1, characterized in that: The transmission assembly includes a transmission screw and a transmission nut; the transmission screw is connected to the mixing motor, the top of the transmission screw is matched with a limiting block, the transmission nut is threadedly connected to the transmission screw and the transmission nut can slide freely on the transmission screw, the transmission nut movably rests on the lower side of the limiting block and is coaxially connected to the rotating shaft, and the rotating shaft is sleeved with the transmission screw.

4. A mixing device as claimed in claim 3, characterized in that: The mixing support is equipped with a position sensor for monitoring whether the rotating shaft rises.

5. A mixing device as claimed in claim 3, characterized in that: The transmission screw rod is sleeved with an elastic washer, and the elastic washer is located at the lower side of the limit block.

6. A mixing device as claimed in claim 3, characterized in that: The mixing motor is connected to the transmission screw rod through a coupling, and the top of the coupling rod is equipped with an elastic gasket.

7. A mixing device as claimed in claim 1, characterized in that: The mixing seat is detachably connected to the upper end of the rotating shaft through the universal seat, the universal seat is connected to the mixing seat, and the universal seat is detachably connected to the upper end of the rotating shaft.

8. A mixing device as claimed in claim 7, characterized in that: The universal seat is locked with the upper end of the rotating shaft through a pin.

9. A mixing device as claimed in claim 6, characterized in that: The mixing seat is rotatably connected to the universal seat.

10. A mixing device as claimed in claim 1, characterized in that: The upper end surface of the mixing seat is provided with at least one groove.

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