CN2917164Y - Microwave oven for microwave sampling instrument - Google Patents
Microwave oven for microwave sampling instrument Download PDFInfo
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- CN2917164Y CN2917164Y CN 200620041848 CN200620041848U CN2917164Y CN 2917164 Y CN2917164 Y CN 2917164Y CN 200620041848 CN200620041848 CN 200620041848 CN 200620041848 U CN200620041848 U CN 200620041848U CN 2917164 Y CN2917164 Y CN 2917164Y
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- door
- furnace chamber
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- microwave
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Abstract
The utility model relates to a special microwave oven for microwave sampling instrument, which comprises an oven body, an oven chamber, an oven door, a door lock, an oven foundation and a rotor drive. The door lock is provided with a lever-hooked structure, and is composed of a button, a locking block and a door hook, thus bringing easy operation, self-locking and explosion prevention, and ensuring safety. Backboard of the oven chamber is provided with two magnetron waveguide holes A and B. In a coordinate with width X and height Y on the backboard, position of the hole A and B is respectively equivalent to 0.23X, 0.26Y and 0.74X, 0.71Y. Their position scope achieves plus or minus 10 per cent of values as above to ensure eligible and even microwave field intensity in the oven chamber. A fan in the oven chamber and an air inlet form a reasonable forcible ventilating channel. Moreover, the oven door is floating. As the door is closed, pretightening force of a plate spring tightly presses the door to keep high sealing. In case of sudden explosion of a retort in the oven chamber, the door can be instantly opened to discharge air and amortize.
Description
(1) technical field;
The utility model be a kind of carry out microwave clear up fast, extract and the instrumentation of analyzing chemical experiment and sample survey such as synthetic in a heater block, especially for the microwave oven of a kind of microwave sampling instrument special use of Experiment of Analytical Chemistry and sample survey.
(2) background technology:
Along with development of modern science and technology, domestic emerging microwave chemical technology emerges rapidly, since it have quick, energy-conservation, pollution-free, effective, precision is high, the traditional heating method that or has replaced outmoded backwardnesss such as heating plate, crucible, experimental chemistry and sample pre-treatments technology have been promoted, clear up fast, extract and synthetic etc. change and development as microwave, entered research application.Microwave is cleared up fast, extraction and synthesizer have become chemical reaction mechanism research and indispensable pretreating device is analyzed in sample survey.
Known, the microwave sampling stove is combined by microwave oven component, electrical equipment control part and the parts such as retort rotor that are disposed in the microwave oven cavity.At present, the microwave oven that homemade microwave is cleared up fast, use in extraction and the synthetic instrument converts by household microwave oven, though can drop into main frame and each parts of developing microwave oven again, utilize original household microwave oven, remove original shell, mix special-purpose Package casing, at furnace chamber internal configurations retort rotor and set up the temperature, pressure control apparatus and safety device gets final product.
But, owing to be subjected to the restriction of former machine, directly the repacking of normal domestic use microwave oven be used for the microwave sampling instrument and come with some shortcomings, as: the furnace chamber volume is less, and microwave power is generally also little; And can not be adjustable continuously, the intensity of fire door is low, and door lock is unreliable, and former machine is by family's design of cooking, and some function is inapplicable.In addition, also to dispose corresponding parts and automatically controlled, so just cause materials such as idle and shell discarded of redundancy function and electrical equipment, waste resource according to micro-wave digestion, extraction and sample preparation needs such as synthetic.In a word, the instrument of household microwave oven repacking can not reasonably satisfy the needs of specialty.Because the furnace chamber size is little, the retort volume is also little in the furnace chamber, has limited the performance of its range of application and function of use, and the design of instrument is difficult to fully rationally.
At present, the external like product overwhelming majority all be the development industrial microwave oven specially as the host part of microwave sampling stove, its performance is better than domestic equipment, but its complex structure, cost are higher, promote the use of still difficult at home on a large scale.
In light of this situation, for satisfying domestic user's needs, improve the performance and the competitiveness of domestic equipment, the microwave oven of developing the microwave sampling instrument special use that meets national conditions is imperative.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of special microwave oven that is used for micro-wave digestion, extraction and microwave sampling stove such as synthetic, to change the at present homemade situation that micro-wave digestion, extraction and microwave sampling stove such as synthetic adopt the household microwave oven repacking that is used for, improve the performance of domestic equipment, structure is simple relatively, can satisfy the needs of users at home and abroad.For reaching this purpose, the technical solution of the utility model is as follows:
A kind of microwave sampling instrument special microwave oven comprises furnace chamber, body of heater, fire door, door lock, rotor drive and support.
Body of heater is the box-shaped lightweight steel construction, and it is except will having enough intensity, rigidity and moulding attractive in appearance, and its size is also wanted to hold and is convenient to install ventilation blower, magnetron, rotor drive and complete machine electrical equipment etc.
Furnace chamber is a cube, over against fire door be the furnace chamber doorframe, the top is a top board, the left and right sides is left and right side plate, the bottom is a base plate, back part be the back plate.Surround again intensive spot welding by sheet metal, guarantee not leak microwave.The furnace chamber top board have air outlet to connect ventilation blower by the rear portion.Respectively there is an air inlet bottom of furnace chamber and arranged on left and right sides plate near the doorframe place, forms the ventilation by forced draft passage.Plate has two magnetron waveguide inlets behind the furnace chamber, in its outside magnetron is installed.
Fire door is for what float, and when fire door was closed, it was pressed on the furnace chamber doorframe by pretightning force, microwave leakage in the tightness that maintenance is closed, unlikely furnace chamber, and contingency furnace chamber internal reaction jar meets accident, available buffer explosive force, but and door a moment crack and to discharge furnace chamber implode gas, alleviate explosive force.
The floating structure of fire door is so to realize, fire door comprises and rotates door-plate and floating frame two parts, rotates the two ends up and down of door-plate and offers the door-hinge hole, is inserted in floating frame up and down in the overhanging door-hinge at two ends, can rotate to open or close.Fixed leaf spring on the furnace chamber doorframe that matches with fire door, the opposite side of leaf spring compresses floating frame, makes and has produced an elastic force of pushing open mutually between floating frame and doorframe.On doorframe, also fixed threaded, penetrated the pin-and-hole of offering on the floating frame, pinned by nut, made to have kept a default distance between floating frame and the doorframe in the behind of pin-and-hole, this predeterminable range can be regulated in advance by nut, with the unsteady pretightning force of control fire door.
Door lock adopts lever to have contact with the formula structure, is made up of button, lock dog and gate stop three parts.
Lock dog is the outer low and inner high triangle edge of a knife shape in inclined-plane, is fixed on the frame of furnace chamber doorframe.
Gate stop is fixed on the frame of fire door, and the position is corresponding with above-mentioned lock dog, is made up of hasp that is form of hooks and spring, and the lateral surface of hasp promptly also is the inclined-plane with the corresponding face of the triangle edge of a knife of lock dog, and two inclined-planes are parallel to each other.Spring makes hasp be in downward pretension state.When closing fire door, the triangle of hasp and the triangle of lock dog bump against, and lift along moving on the inclined-plane of lock dog slides, when the seam of hasp slips over the edge of a knife of lock dog, fall in the edge of a knife, fire door is lockable, because the spring action of gate stop is held hasp and is prevented from upwards to become flexible and occur opening by mistake improperly opening.
Button parts is stock shape, is fixed on the frame of furnace chamber doorframe, and bottom pin joint one lever arm of button stock, lever arm is situated between by the fulcrum that is fixed on the furnace chamber doorframe, and its other end is against the below of hasp.Stock is through in a spring and the bearing, because the effect of spring, the button stock keeps lifting shape, and it is upper to make the lever arm of lower end also locate, and the other end of lever arm is the next, and hasp is not lifted; Overcome spring force with button down when manual, stock moves down, and lever arm is depressed, and the other end lifts, and hasp is held up, and with the lock dog disengagement, fire door is opened when exceeding the lock dog edge of a knife.
The structure like this of door lock has self-locking and antiknock function, makes under any circumstance to comprise: the blast that meets accident of reaction in furnace jar, and can not break off relations yet and open the door automatically, guarantee safety.
The waveguide mouth position of magnetron is great for the even distribution relation of microwave field density in the furnace chamber in the furnace chamber, it is according to the microwave heating field theory, resonance microwave and power match design, the microwave field that is produced in the furnace chamber when guaranteeing to heat is not only satisfied the demand, and homogeneous phase is same everywhere.Design and test show that better effects can be obtained in microwave oven magnetic waveguide mouth position in following scope.If the width of furnace chamber is X, highly be Y, in establish about two magnetron waveguide mouth A, B, the lower left corner of furnace chamber is the zero point of plane coordinates, then, the coordinate position of magnetron waveguide mouth A is 0.23X, 0.26Y; The coordinate position of magnetron waveguide mouth B is 0.74X, 0.71Y.Their scope all above-mentioned numerical value ± 10% in.Through test, better with interior effect ± 5%.
In order in time to extract the acid gas in the furnace chamber out, in addition, also can be used for cooling off when experiment finishes retort, to open a jar sampling as early as possible.Furnace chamber chamber top board has air outlet tipping ventilation blower, and forward of two chamber lower sidewall respectively have an air inlet about furnace chamber, forms a rational forced ventilation passage thus in furnace chamber.
Rotor drive comprises motor and mechanical reduction gear, and it links to each other with retort rotor in being arranged on furnace chamber by coupling, and at furnace bottom postioning abutment is set, realizes that rotor 360 degree come and go and rotate.
(4) description of drawings:
Fig. 1 is the global facility allocation plan of a kind of special microwave oven for microwave sampling instrument of the utility model;
Fig. 2 is that the master of the door lock modular construction of a kind of special microwave oven for microwave sampling instrument of the utility model looks and right view;
Fig. 3 is two magnetron waveguide mouth location arrangements figure on the plate behind the furnace chamber of a kind of special microwave oven for microwave sampling instrument of the utility model;
Fig. 4 is the structure chart of the unsteady fire door of a kind of special microwave oven for microwave sampling instrument of the utility model.
Among the figure, 1. body of heater 2. furnace chambers 3. fire doors 4. door locks 5. supports 6. rotor drives 7. ventilation blowers 8. magnetron waveguide mouths 9. air inlets
2-1. doorframe 2-1a. leaf spring 2-1b. threaded 3-1. rotates door-plate 3-2. floating frame 3-2a. door-hinge 3-2b. screw thread pin-and-hole 3-2c. nut
4-1. button 4-2. lock dog 4-3. gate stop
(5) embodiment:
Provide preferred embodiment of the present utility model according to Fig. 1 to Fig. 3 below, and described in detail.
As shown in Figure 1, a kind of industrial microwave oven specially that is used for chemical sample preparation instrument, it comprises: body of heater 1, furnace chamber 2, fire door 3, door lock 4, rotor drive 6 and support 5 etc.
Body of heater 1, be light steel box-shaped skeleton structure, it with furnace chamber 2, fire door 3, support 5 with shell is connected, also will hold and install magnetron, ventilation blower, rotor drive and complete machine electrical equipment etc. except directly, it is simple in structure, compact, has enough intensity, rigidity and space.
Furnace chamber 2 is a cube, is the furnace chamber doorframe over against fire door, and the top is a top board, and the left and right sides is left and right side plate, and the bottom is a base plate, and back part is the back plate.Surround again intensive spot welding by sheet metal, guarantee not leak microwave.The furnace chamber top board have air outlet to connect ventilation blower 7 by the rear portion.Respectively there is an air inlet bottom of furnace chamber and arranged on left and right sides plate near the doorframe place, forms the ventilation by forced draft passage, in time extracts the acid gas in the furnace chamber out.In addition, also can be used for cooling off when experiment finishes retort, to open a jar sampling as early as possible.
The waveguide mouths 8 that two configuration magnetrons are arranged on the plates of furnace chamber 2 back establish that the width of plate is X behind the furnace chamber, highly are Y, in establish about two magnetron waveguide mouth A, B, the lower left corner of plate is the zero point of plane rectangular coordinates behind the furnace chamber, then, x, the y coordinate position of magnetron waveguide mouth A are 0.23X, 0.26Y; X, the y coordinate position of magnetron waveguide mouth B be, 0.74X, 0.71Y, their position range all above-mentioned numerical value ± 10% in.Through the test, above-mentioned scope ± 5% with Nei Gengjia.
Fire door 3 adopts floating structures, and fire door 3 comprises and rotates door-plate 3-1 and floating frame 3-2 two parts, rotates the two ends up and down of door-plate 3-1 and offers the door-hinge hole, is inserted in floating frame up and down among two door-hinge 3-2a at two ends, rotates door-plate 3-1 and can rotate out and close.Fixed leaf spring 2-1a on the furnace chamber doorframe 2-1 that matches with fire door 3, the opposite side of leaf spring 2-1a compresses floating frame 3-2, makes and has produced an elastic force of pushing open mutually between floating frame 3-2 and doorframe 2-1.On doorframe 2-1, also fixed threaded 2-1b, the end of thread of threaded 2-1b penetrates the screw thread pin-and-hole 3-2b that offers on the floating frame 3-2, behind at pin-and-hole is pinned by nut 3-2c, make and kept a default distance between floating frame 3-2 and the doorframe 2-1, this predeterminable range can be regulated in advance by nut 3-2c, to control the pretightning force that fire door 3 floats.
Door lock adopts lever to have contact with the formula structure, is made up of button 4-1, lock dog 4-2 and gate stop 4-3 three parts.
Lock dog 4-2 is the outer low and inner high edge of a knife shape in inclined-plane, is fixed on the frame of furnace chamber 2 doorframe 2-1.
Gate stop 4-3 is fixed on the frame of fire door 3, and the position is corresponding with lock dog 4-2, is made up of hasp that is form of hooks and spring, and the lateral surface of hasp is the inclined-plane, and is corresponding with the inclined-plane of lock dog 4-2, and is parallel to each other, and spring makes hasp be in downward pretension state.When closing fire door 3, the inclined-plane of hasp and the inclined-plane of lock dog bump against, in the inclined-plane slip of lock dog, shifted, slip over the edge of a knife of lock dog 4-2 when the seam of hasp, fall in the edge of a knife, fire door 3 is lockable, because the spring action of gate stop 4-3, holds hasp and prevents upwards loosening and fire door 3 occurs and open by mistake improperly and open.
Button 4-1 parts are stock shape, are fixed on the frame of furnace chamber 2 doorframe 2-1, and bottom pin joint one lever arm of button stock, lever arm are situated between by the fulcrum that is fixed on the furnace chamber 2 doorframe 2-1, and its other end is against the hasp below on the fire door 3.Stock is through in a spring and the bearing, because the effect of spring, the button stock keeps lifting shape, makes the lever arm of stock lower end pin joint lift, and the other end of lever arm is in low level, and hasp is not lifted; Overcome spring force with button down when manual, stock moves down, and lever arm is depressed, and the other end lifts, and hasp is held up, and with lock dog 4-2 disengagement, fire door 3 is opened when exceeding the lock dog 4-2 edge of a knife.
For door lock 4 is closed reliably, lock dog 4-2, gate stop 4-3 part can be installed down two covers simultaneously.
Support 5 is used to support entire machine, and holds rotor drive, and it has enough strength and stiffness, and good aeration structure is arranged.
Rotor drive 6 is installed in furnace chamber bottom centre, is used for driving retort rotor (in the accompanying drawing occur) 360 degree and comes and goes running, makes on the rotor each retort evenly accept microwave heating.It is made up of drive motors and deceleration device and coupling.Motor and deceleration device link into an integrated entity, the rotating speed of mechanical reduction gear output shaft, be exactly the required rotating speed of retort rotor, the two by the half-coupling on the output shaft that is installed in reducing gear be installed in second half coupling that retort rotor bottom center matches with it and be connected.
Claims (3)
1. a special microwave oven for microwave sampling instrument comprises body of heater (1), furnace chamber (2), and fire door (3), door lock (4), support (5) and rotor drive (6),
Furnace chamber (2) is a cube, is doorframe over against fire door, and the top is a top board, and the left and right sides is left and right side plate, and the bottom is a base plate, and back part is the back plate,
It is characterized in that,
Door lock (4) adopts lever to have contact with the formula structure, comprises button (4-1), lock dog (4-2) and gate stop (4-3) three parts,
Lock dog (4-2) is the outer low and inner high edge of a knife shape in inclined-plane, is fixed on the frame of furnace chamber (2) doorframe,
Gate stop (4-3) is fixed on the frame of fire door (3), and the position is corresponding with lock dog (4-2), is made up of hasp that is form of hooks and spring, the lateral surface of hasp is the inclined-plane, and is corresponding with the inclined-plane of lock dog 4-2, and is parallel to each other, spring makes hasp be in downward pretension state
Button (4-1) parts are elongated rod shape, be fixed on the frame of furnace chamber (2) doorframe, bottom pin joint one lever arm of button stock, lever arm is situated between by the fulcrum that is fixed on furnace chamber (2) doorframe, its other end is against the hasp below, stock is through in a spring and the bearing, and spring makes the button stock keep lifting shape
The back plate of furnace chamber (2) is offered two magnetron waveguide mouth (8) A and B, establishes that the width of plate is X behind the furnace chamber, is Y highly, and the lower left corner of plate is the zero point of plane rectangular coordinates behind the furnace chamber, and then, x, the y coordinate position of magnetron waveguide mouth A are 0.23X, 0.26Y; X, the y coordinate position of magnetron waveguide mouth B be, 0.74X, 0.71Y, their position range all above-mentioned numerical value ± 10% in,
Fire door (3) comprises rotation door-plate (3-1) and floating frame (3-2) two parts, floating frame is the overhanging door-hinges in two ends (3-2a) up and down, insert and rotate in door-plate (3-1) the door-hinge hole that two ends are offered up and down, fixed leaf spring (2-1a) on the doorframe (2-1) of furnace chamber (2), the opposite side of leaf spring (2-1a) compresses floating frame (3-2), threaded (2-1b) is fixed on the doorframe (2-1), the end of thread penetrates in the screw thread pin-and-hole of offering on the floating frame (3-2) (3-2b), is pinned by nut (3-2c).
2. according to the described a kind of special microwave oven for microwave sampling instrument of claim 1, it is characterized in that, the top board of furnace chamber (2) is offered the air outlet of tipping ventilation blower (7) near the back lining, the left and right side plate of furnace chamber (2) is offered air inlet (9) respectively, and air inlet (9) is positioned at the bottom of side plate near fire door (3).
3. according to the described a kind of special microwave oven for microwave sampling instrument of claim 1, it is characterized in that, the coordinate position of magnetron waveguide mouth (8) A and B the above-mentioned numerical value of plate behind the furnace chamber ± 5% in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041848 CN2917164Y (en) | 2006-05-18 | 2006-05-18 | Microwave oven for microwave sampling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041848 CN2917164Y (en) | 2006-05-18 | 2006-05-18 | Microwave oven for microwave sampling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2917164Y true CN2917164Y (en) | 2007-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620041848 Expired - Fee Related CN2917164Y (en) | 2006-05-18 | 2006-05-18 | Microwave oven for microwave sampling instrument |
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| Country | Link |
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| CN (1) | CN2917164Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013432A (en) * | 2020-07-17 | 2020-12-01 | 广东美的厨房电器制造有限公司 | Microwave oven, control method thereof, and computer readable medium |
-
2006
- 2006-05-18 CN CN 200620041848 patent/CN2917164Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013432A (en) * | 2020-07-17 | 2020-12-01 | 广东美的厨房电器制造有限公司 | Microwave oven, control method thereof, and computer readable medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 Termination date: 20150518 |
|
| EXPY | Termination of patent right or utility model |