CN2124465U - Explosion-proof electronic balance - Google Patents
Explosion-proof electronic balance Download PDFInfo
- Publication number
- CN2124465U CN2124465U CN 92207078 CN92207078U CN2124465U CN 2124465 U CN2124465 U CN 2124465U CN 92207078 CN92207078 CN 92207078 CN 92207078 U CN92207078 U CN 92207078U CN 2124465 U CN2124465 U CN 2124465U
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- CN
- China
- Prior art keywords
- explosion
- proof
- pedestal
- display panel
- cavity box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- Position Input By Displaying (AREA)
- Mechanical Control Devices (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The utility model relates to an explosion-proof electronic balance which is provided with an explosion-proof casing. A manipulation display panel which is provided with a viewing window and a manipulating key is arranged on one side on an explosion-proof upper casing. A convex bench is arranged on one side on an explosion-proof base where is close to the manipulation display panel. An electronic core element is arranged on the convex bench. A concave cavity box is arranged at the center of the explosion-proof upper casing. A sensor is fixed in the concave cavity box. One side of the sensor is provided with a live axle. The upper end of the live axle passes through the fitting hole of the upper cover of the concave cavity box and is connected with the connecting plate of a balance pan, and the bottom of the live axle is provided with an overload protection device. The utility model not only has the functions of an ordinary electronic balance, but also has explosion-proof and explosion protecting functions. The explosion-proof electronic balance can be applied to operational fields where contain explosive gases, such as military, chemical industry, etc.
Description
The utility model relates to a kind of electronic weighting equipment, relates in particular to a kind of flame-proof type explosion-proof electronic scales.
Electronic scales is owing to have than the how more obvious advantage of mechanical scale, thereby, applied rapidly in a lot of fields.But because the ordinary electronic scale can not satisfy the requirement of " explosive atmosphere electrical appliance equipment " on structure and electrical specification, make its electric arc that produces in the course of the work and heat that explosive atmosphere is produced role and influence unavoidably, according to the provisions of the relevant regulations issued by the State, this ordinary electronic scale will be subjected to strict restriction at military project, chemical industry and the application that contains production places such as damp, dust, even can be described as impossible.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and a kind of both the had original function of ordinary electronic scale, characteristic and precision are provided, again can flame-proof explosion-proof, and power consumption is little, the electronic weighting equipment of good heat dissipation.
The purpose of this utility model can reach by following measure:
The utility model is to adopt existing ordinary electronic scale chipware, power supply to supply with converter, control button etc., it is rearranged be assemblied in the flameproof enclosure, increase measures such as flame proof, heat radiation, make the utility model both have the repertoire of ordinary electronic scale, have the flame-proof explosion-proof function simultaneously again.
The flame-proof type explosion-proof electronic scales; comprise housing; sensor; the electronics chipware; power supply is supplied with converter and is handled display panel; its special character is: described housing is an explosion-proof casing; constitute by explosion-proof pedestal and the explosion-proof upper casing that is arranged on the explosion-proof pedestal; a side of explosion-proof upper casing is provided with the manipulation display panel; handle display panel and be provided with tempered glass view window and explosion-proof joystick key; be provided with the boss seat that the electronics chipware is installed near handling display panel one side on the described explosion-proof pedestal; the circuit board of electronics chipware is fixed on the boss seat by the insulating pad of its bottom; electronic display on the electronics chipware faces the tempered glass view window; described explosion-proof upper casing center is provided with a cavity box; cavity box internal fixation has sensor; sensor one side is provided with force transmission shaft; mating holes and scale pan web joint that the cavity box cover is passed in the upper end of described force transmission shaft join; the force transmission shaft lower end is provided with overload protection arrangement, and power supply is supplied with converter and is located at opposite side on the explosion-proof pedestal.
Explosion-proof joystick key of the present utility model has a button, and its top is provided with rubber board, and the button lower end is passed cushion and is connected with the tubular shaft inner hole thread with the thin-walled protecting sheathing, hollow shaft sleeve in the fixing sliding sleeve of explosion-proof upper casing in.
Explosion-proof pedestal of the present utility model can be that the bottom is provided with the pedestal of adjustment level with an angle screw, and described force transmission shaft is provided with an annular boss, and annular boss is positioned at the mating holes bottom of cavity box cover.
Accompanying drawing drawing of the present utility model is described as follows:
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of the explosion-proof control button of the utility model embodiment.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Referring to Fig. 1, shell of the present utility model is an explosion-proof casing, is made of explosion-proof pedestal 2 and explosion-proof upper casing 9, and both are connected into one by interior six square bolts 4 on four limits, explosion-proof pedestal 2 bottoms.The connection part of explosion-proof pedestal 2 and explosion-proof upper casing 9 cooperates closely, forms explosion suppresion surface 5.Explosion-proof pedestal 2 should adopt cast aluminium or aluminum alloy materials.Heat radiator 3 is preset in explosion-proof pedestal 2 bottoms, and electric chipware is because of the heat that produces of a specified duration of working in the closed shell that can leave.Four angles of explosion-proof pedestal 2 bottoms are equipped with four angle screws 1, are used for the utility model is carried out horizontal adjustment.A side of explosion-proof upper casing 9 is provided with handles display panel 27, it is made of tempered glass view window 26 and explosion-proof joystick key 28, be provided with packing ring 24 and 25 around the bottom of tempered glass view window 26 and the top, compress with pressing plate 22 and explosion-proof upper casing 9 respectively, fastening with screw.Near a side of handling display panel 27, be provided with the boss seat 18 that electronics chipware 21 is installed on the explosion-proof pedestal 2, the insulating pad 19 of the circuit board of electronics chipware 21 below it is fastened on the boss seat 18 with screw.Electronic display 23 after installing and fixing should face tempered glass view window 26, can read results such as weighing easily from view window 26.Power supply supply converter 6 is arranged at the opposite side on the explosion-proof pedestal, and separates with other electron device.Electrical source importing device can adopt GB3836.2-83.The top center of explosion-proof upper casing 9 is provided with a recessed cavity box 7 to pedestal 2, and sensor 11 is screwed in cavity box 7.During sensor installation 11, the mating holes 13 of cavity box cover 15 centres is passed in the upper end that is contained in the brief biography axle 16 of sensor 11 1 sides, joins with scale pan web joint 14, and force transmission shaft 16 is a Metallic rod, and it and mating holes 13 form an annular explosion suppresion surface.The bottom, lower end of force transmission shaft 16 is provided with overload protection arrangement 10, and overload protection arrangement 10 can adopt screw, bolt etc.Gap between force transmission shaft 16 lower surfaces and overload protection arrangement 10 upper surfaces can be adjusted by overload protection arrangement 10, makes that both assurances do not contact when normally weighing, and during overload, overload protection arrangement 10 is subjected to bearing capacity.The annular gap that force transmission shaft 16 and cavity box cover 15 mating holess are 13 should be when assurance be as far as possible little, guarantee that force transmission shaft 16 and mating holes 13 must not contact frictions, its single face radial play generally is advisable with 0.10～0.30mm, when if this gap is big, should establish an annular boss 12 on the force transmission shaft 16 with on the corresponding position, mating holes 13 bottoms, during installation, the gap of annular boss 12 and mating holes 13 lower surfaces is to be advisable less than 0.2mm, like this, in a single day inner electrical equipment produce explosion pressure, boss 12 can tightly be sealed the clearance aperture of 16 of mating holes 13 and force transmission shafts by the top to mating holes 13.Chipware is adjusted on the switch 20 corresponding positions on explosion-proof upper casing 9 tops and the electronics chipware 21, but is provided with speedy moving type switch flame proof lid 17, opens flame proof lid 17, can conveniently adjust the adjustment switch 20 of chipware.
Referring to Fig. 2; explosion-proof joystick key 28 has a button 31; button 31 tops are the rubber board operation boards 29 that are printed on functional symbol; button 31 lower ends are passed the thin-walled containment vessel 30 that is welded on the explosion-proof upper casing 9 and are cooperated with the inner hole thread of tubular shaft 32; be provided with cushion 37 between thin plate containment vessel 30 and the rubber board operation board 29; tubular shaft 32 inserts in the sliding sleeve of fixing with explosion-proof upper casing 9 35; tubular shaft 32 bottoms contact with the relevant position 33 of the circuit board of internal electron chipware 21 through cushion pad 34; tubular shaft 32 tops are provided with nut 36, can play position-limiting action.
The utility model compared with prior art has following advantage:
1, flame-proof explosion-proof, safe and reliable. Reach II A, II category-B explosion-proof electrification standard-required.
2, power consumption is little, and thermal diffusivity is good. Maximum surface temperature is the T6 level.
3, can be applicable to military project, chemical industry etc. and contain operation place of damp etc.
4, have the original function of ordinary electronic scale, characteristic and precision.
5, simple and reasonable for structure, installation and debugging, convenience.
Claims (3)
1; a kind of flame-proof type explosion-proof electronic scales; comprise housing; sensor; the electronics chipware; power supply is supplied with converter and is handled display panel; it is characterized in that: described housing is an explosion-proof casing; constitute by explosion-proof pedestal and the explosion-proof upper casing that is arranged on the explosion-proof pedestal; a side of explosion-proof upper casing is provided with the manipulation display panel; handle display panel and be provided with tempered glass view window and explosion-proof joystick key; be provided with the boss seat that the electronics chipware is installed near handling display panel one side on the described explosion-proof pedestal; the circuit board of electronics chipware is fixed on the boss seat by the insulating pad of its bottom; electronic display on the electronics chipware faces the tempered glass view window; described explosion-proof upper casing center is provided with a cavity box; cavity box internal fixation has sensor; sensor one side is provided with force transmission shaft; mating holes and scale pan web joint that the cavity box cover is passed in the upper end of described force transmission shaft join; the force transmission shaft lower end is provided with overload protection arrangement, and power supply is supplied with converter and is located at opposite side on the explosion-proof pedestal.
2, flame-proof type explosion-proof electronic scales as claimed in claim 1; it is characterized in that: described explosion-proof joystick key has a button; its top is provided with rubber board, and the button lower end is passed cushion and is connected with the tubular shaft inner hole thread with the thin-walled protecting sheathing, hollow shaft sleeve in the fixing sliding sleeve of explosion-proof upper casing in.
3, flame-proof type explosion-proof electronic scales as claimed in claim 1 or 2, it is characterized in that: described explosion-proof pedestal is that the bottom is provided with the pedestal of adjustment level with an angle screw, described force transmission shaft is provided with an annular boss, and annular boss is positioned at the mating holes bottom of cavity box cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92207078 CN2124465U (en) | 1992-04-13 | 1992-04-13 | Explosion-proof electronic balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92207078 CN2124465U (en) | 1992-04-13 | 1992-04-13 | Explosion-proof electronic balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2124465U true CN2124465U (en) | 1992-12-09 |
Family
ID=4952877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92207078 Granted CN2124465U (en) | 1992-04-13 | 1992-04-13 | Explosion-proof electronic balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2124465U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789929B (en) * | 2004-12-14 | 2010-05-05 | 梅特勒-托利多公开股份有限公司 | Weighing module having an overload protection arrangement |
| CN105318951A (en) * | 2014-07-30 | 2016-02-10 | 徐亚珍 | Full heat radiating electronic scale display casing |
| CN105318952A (en) * | 2014-07-30 | 2016-02-10 | 徐亚珍 | Heat radiating electronic scale display casing |
-
1992
- 1992-04-13 CN CN 92207078 patent/CN2124465U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789929B (en) * | 2004-12-14 | 2010-05-05 | 梅特勒-托利多公开股份有限公司 | Weighing module having an overload protection arrangement |
| CN105318951A (en) * | 2014-07-30 | 2016-02-10 | 徐亚珍 | Full heat radiating electronic scale display casing |
| CN105318952A (en) * | 2014-07-30 | 2016-02-10 | 徐亚珍 | Heat radiating electronic scale display casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |