Cabin door opening mechanism for microwave digestion instrument

Abstract

The utility model provides a cabin door opening mechanism for a microwave digestion instrument, which comprises a base, the base is arranged in a cabin body, two sides of the base are respectively provided with a set of connecting rod transmission mechanism, and the connecting rod transmission mechanisms are mutually symmetrical; the connecting rod transmission mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a first transmission shaft; the second transmission shaft is arranged on the base, and one end of the second transmission shaft is connected with the output end of the power part. The connecting rod transmission mechanism is driven by the power part so that the cabin door can be automatically opened, and the danger that harmful substances make contact with the human body when the cabin door is manually opened is avoided.

Description

Technical Field

[0001] The utility model relates to the field of physics, in particular to a microwave digestion instrument, in particular to a hatch opening mechanism for the microwave digestion instrument. Background Art

[0002] Microwave digestion is a commonly used instrument for sample pretreatment. Its fast and uniform heating characteristics can fully digest the sample. Microwave digestion has the characteristics of high temperature, high pressure and high corrosion during use. The hatch of the common high temperature and high pressure microwave digestion instrument is opened and closed manually. There is a handle on the hatch to open or lock the hatch. However, this manual hatch opening method is time-consuming, laborious and inconvenient to operate, and it is dangerous: for example, when the hatch is opened manually, acid mist or corrosive and toxic gases will be generated inside the tank, which is easy to cause certain dangers when it comes into contact with the human body. Utility Model Content

[0003] The utility model aims to provide a hatch opening mechanism for a microwave digestion instrument, which aims to solve the technical problems in the prior art that manual door opening is time-consuming, laborious, inconvenient to operate and has certain risks.

[0004] A hatch opening mechanism for a microwave digestion instrument comprises a cabin and a base, wherein the base is arranged at the bottom of the cabin, a hatch is arranged at the front of the cabin, a hatch is arranged on the hatch, the hatch is arranged on the inside of the hatch, and both the hatch and the hatch are cambered surfaces, the base is arranged in the cabin, a set of connecting rod transmission mechanisms are arranged on both sides of the base, and the connecting rod transmission mechanisms are symmetrical to each other; the connecting rod transmission mechanisms comprise a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, and a first transmission shaft; support rods are arranged on both sides of the base, and the open ends of the support rods are rotatably connected to the first transmission shaft; one end of the first transmission shaft is fixedly connected to one end of the first connecting rod, and the other end of the first connecting rod is connected to the hatch; the other end of the first transmission shaft is fixedly connected to one end of the second connecting rod, the other end of the second connecting rod is rotatably connected to one end of the third connecting rod, the other end of the third connecting rod is rotatably connected to one end of the fourth connecting rod, and the other end of the fourth connecting rod is fixedly connected to the second transmission shaft; the second transmission shaft is arranged on the base, and one end of the second transmission shaft is connected to the output end of the power unit.

[0005] Preferably, a working area is provided in the cabin, the support rod is higher than the working area, and the fourth connecting rod is fixedly connected to the second transmission shaft at a side away from the working area.

[0006] Preferably, the power unit is a rotary cylinder or a motor.

[0007] The working principle of the utility model is that after the digestion work of the microwave digestion instrument is completed, the power unit is used to drive the second transmission shaft to rotate, thereby driving the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod to swing in sequence, so that the cabin door can be automatically opened.

[0008] Beneficial Effects

[0009] Compared with the prior art, the utility model has positive and obvious effects:

[0010] 1. The power unit drives the connecting rod transmission mechanism to enable the hatch door to open automatically, avoiding the danger of harmful substances coming into contact with the human body when the hatch door is opened manually.

[0011] 2. The space of the working area is expanded by the support rod higher than the working area and the fourth connecting rod far away from the side of the working area, so as to avoid interference between the transmission mechanism and the working area. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the external structure of the embodiment.

[0013] Figure 2 Schematic diagram of the internal structure in the embodiment.

[0014] Figure 3 A schematic structural diagram of the connecting rod transmission mechanism in the embodiment.

[0015] Figure 4 Positional relationship diagram of the connecting rod transmission mechanism and the working area in the embodiment.

[0016] In the figure: 1 cabin; 101 base; 102 support rod; 103 hatch; 104 working area; 2 hatch door; 3 first connecting rod; 4 second connecting rod; 5 third connecting rod; 6 fourth connecting rod; 7 first transmission shaft; 8 second transmission shaft; 9 power unit. DETAILED DESCRIPTION

[0017] The following embodiments will further illustrate the present invention, but are not intended to limit the present invention.

[0018] like Figures 1 to 4 As shown, this embodiment provides a hatch opening mechanism for a microwave digestion instrument, including a base 101, the base 101 is arranged at the bottom of a cabin body 1, a hatch 103 is arranged on the front of the cabin body 1, a hatch 2 is arranged on the hatch 103, and the hatch 2 is on the inner side of the hatch 103. When the hatch 2 is opened, the hatch 2 moves upward and opens close to the inner side of the hatch 103.

[0019] A set of connecting rod transmission mechanisms are respectively arranged on both sides of the base 101, and the two sets of connecting rod transmission mechanisms are symmetrical to each other and move synchronously, thereby achieving the effect of smoothly moving and opening the cabin door 2.

[0020] The connecting rod transmission mechanism includes a first connecting rod 3, a second connecting rod 4, a third connecting rod 5, a fourth connecting rod 6 and a first transmission shaft 7. The two sides of the base 101 are symmetrically fixed with vertically upward support rods 102, the top of the support rod 102 is rotatably connected to the first transmission shaft 7 through an axial hole, the first transmission shaft 7 is horizontally arranged, and the axes of the first transmission shafts 7 on both sides are collinear; one end of the first transmission shaft 7 is fixed to one end of the first connecting rod 3, and the other end of the first connecting rod 3 is fixed to the hatch 2. The first connecting rods 3 of the two sets of connecting rod transmission mechanisms are respectively fixed to the two sides of the inner side of the hatch 2, so as to achieve the effect of the hatch 2 rotating and moving around the axis of the first transmission shaft 7 through the two first connecting rods 3; the hatch 103 and the hatch 2 are both curved surfaces, so as to achieve the effect of the hatch 2 moving and opening along the inner side of the hatch 103.

[0021] The other end of the first transmission shaft 7 is fixedly connected to one end of the second connecting rod 4, the other end of the second connecting rod 4 is rotatably connected to one end of the third connecting rod 5, the other end of the third connecting rod 5 is rotatably connected to one end of the fourth connecting rod 6, and the other end of the fourth connecting rod 6 is fixedly connected to the second transmission shaft 8; the angle and position at which the fourth connecting rod 6 of the two sets of connecting rod transmission mechanisms are fixed to the second transmission shaft 8 are the same. When the second transmission shaft 8 rotates, the second transmission shaft 8 simultaneously drives the two fourth connecting rods 6 to rotate around the axis of the second transmission shaft 8, and then drives the first transmission shaft 7 to rotate through the connecting rod movement of the third connecting rod 5 and the second connecting rod 4, and then drives the cabin door 2 to rotate around the axis of the first transmission shaft 7 through the first connecting rod 3 connected to the first transmission shaft 7, thereby achieving the effect of synchronous transmission of the two sets of connecting rod transmission mechanisms, making the movement of the cabin door 2 more stable.

[0022] The second transmission shaft 8 is arranged on the base 101, and one end of the second transmission shaft 8 is fixedly connected to the output end of the power unit 9. The power unit 9 in this embodiment is a rotating cylinder, which is a device that can rotate the output shaft by air pressure. This device is an existing conventional technology, and those skilled in the art should understand that it will not be repeated here. When the microwave digester in this embodiment completes the digestion work, the main control system of the microwave digester controls the opening of the air valve and supplies air to the power unit 9 through electrical signals, so that the output shaft of the rotating cylinder rotates, and then drives the second transmission shaft 8 to rotate, and the cabin door 2 is opened through the connecting rod transmission mechanism, thereby achieving the effect of automatically opening the cabin door 2. In other embodiments, the power unit 9 can also be a motor, and the main control system controls the rotation of the motor through electrical signals to achieve the same effect.

[0023] A working area 104 is provided in the cabin 1, and the working area 104 is used for performing microwave digestion work. The height of the support rod 102 of this embodiment is higher than the height of the working area 104, so that the first connecting rod 3 will not interfere with the space of the working area 104 when it moves, and the effect of reducing the space of the working area 104 is avoided while realizing the function of automatically opening the cabin door 2; the fourth connecting rod 6 is fixedly connected to the second transmission shaft 8 on the side away from the working area 104; when the cabin door 2 is opened, the angle between the fourth connecting rod 6 and the chassis is close to 0°; when the cabin door 2 is closed, the fourth connecting rod 6 is limited by the limit block on the chassis, and the angle between the fourth connecting rod 6 and the bottom does not exceed 90°, so that the connecting rod transmission mechanism will not interfere with the working area 104 when it moves, and further the effect of reducing the space of the working area 104 is avoided while realizing the function of automatically opening the cabin door 2.

[0024] The working principle of this embodiment:

[0025] After the microwave digestion instrument completes the digestion work, the main control system of the microwave digestion instrument controls the gas valve through electrical signals to supply gas to the power unit 9, so that the output shaft of the rotating cylinder rotates, and the output shaft drives the second transmission shaft 8 to rotate, and the second transmission shaft 8 drives the fourth connecting rod 6 to rotate around the axis of the second transmission shaft 8, thereby driving the third connecting rod 5 and the fourth connecting rod 6 to move, and then drives the first transmission shaft 7 to rotate at the top end of the support rod 102, and the first transmission shaft 7 drives the first connecting rod 3 to rotate around the axis of the first transmission shaft 7, thereby driving the hatch 2 to move around the axis of the first transmission shaft 7, so that the hatch 2 and the hatch 103 are staggered, so as to achieve the effect of automatically opening the hatch 2, and avoid the danger caused by the operator's contact with toxic gases when manually opening.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hatch opening mechanism for a microwave digestion instrument, comprising a cabin and a base, wherein the base is arranged at the bottom of the cabin, a hatch is arranged at the front of the cabin, a hatch is arranged on the hatch, the hatch is arranged on the inside of the hatch, and both the hatch and the hatch are curved surfaces, characterized in that: A set of connecting rod transmission mechanisms are respectively arranged on both sides of the base, the connecting rod transmission mechanisms are symmetrical to each other, and the connecting rod transmission mechanisms include a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, and a first transmission shaft; Support rods are provided on both sides of the base, and the open ends of the support rods are rotatably connected to the first transmission shaft; one end of the first transmission shaft is fixedly connected to one end of the first connecting rod, the other end of the first connecting rod is connected to the cabin door, the other end of the first transmission shaft is fixedly connected to one end of the second connecting rod, the other end of the second connecting rod is rotatably connected to one end of the third connecting rod, the other end of the third connecting rod is rotatably connected to one end of the fourth connecting rod, and the other end of the fourth connecting rod is fixedly connected to the second transmission shaft; The second transmission shaft is arranged on the base, and one end of the second transmission shaft is connected to the output end of the power unit.

2. A hatch opening mechanism for a microwave digestion apparatus as claimed in claim 1, characterized in that: A working area is arranged in the cabin, the support rod is higher than the working area, and the fourth connecting rod is fixedly connected to the second transmission shaft at a side away from the working area.

3. A door opening mechanism for a microwave digestion apparatus as claimed in claim 1, characterized in that: The power unit is a rotating cylinder or a motor.

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