DE202018103705U1 - Protection against air movement coverage for electronic scales to measure the mass of tiny objects - Google Patents

Abstract

An air movement protection cover for electronic scales for measuring the mass of minute objects, characterized in that it comprises a cover housing (1), the cover housing having an upper base (1-1), a lower base (1-2), sidewalls ( 1-3) and a feed door (1-4), wherein a plurality of lights (2) are mounted on the outer surface of the upper base surface, wherein the lower base surface is provided with a storage plate (3) for weighing, wherein the side walls with the upper Base surface and the lower base surface are integrally formed, wherein the side walls are each provided with a left sliding slot (4) and a right sliding slot (5), wherein the feed door is tuned to the left and the right sliding slot, wherein a drive motor (6) the inner side surface of the supply door is mounted, wherein one end of the output shaft of the drive motor with a gear (6-1) and with a on the gear abg a toothed rack (7) is provided, wherein one end of the rack at the lower base and the other end of the rack is fixed to the upper base, wherein the rack is perpendicular to the lower base and upper base, and wherein one end of the rack with a first stroke switch (8) and the other end of the rack is provided with a second stroke switch (9).

Description

Field of the invention

The present invention relates to the technical field of mass measurement, and more particularly to a cover for electronic balances providing protection against air movement for measuring the mass of minute objects.

State of the art

There is currently a wide variety of electronic scales on the market for mass measurement of solids, liquids and gases. Electronic scales typically consist of three components, namely a support system (eg, weigh pan and balance body), a power transmission system (eg, leverage transmission system and sensor), and a display system (eg, scale and electronic display device).

At present, there is a type of electronic mass-measuring scale for tiny objects that can be used to perform high-precision mass measurements on tiny solid particles and on fine powders. The fact that the measurement objects have a low volume and a low mass, the accuracy of the mass measurement is easily adversely affected by occurring in the surrounding air currents or air movements. This leads to a significant increase in the measurement error.

The Chinese Patent Application Publication CN 101675324 A discloses a removable cover providing air movement protection with an insertion and removal mechanism. A pair of movable members are disposed on the lower frame of the air movement protection cover, the movable members being moved between the inner and outer portions of the removable air movement protection cover, the movable members being provided with connecting members connected to the air movement Rear side of the weighing plate of the electronic scale are connected. When the moving parts are withdrawn from the cover providing air movement protection, the removable cover for air movement providing cover is placed on the electronic balance, wherein the two moving parts are pressed in, whereby the arranged at the moving parts fasteners with the back of the on a Side of the electronic scale located weighing plate are connected to connect the removable protection against air movement providing cover and the electronic balance to a one-piece element.

1. 1. Bei der Schutz vor Luftbewegungen bietenden Abdeckung gemäß der obengenannten Veröffentlichung muss die Zufuhrtür manuell in einer mit dem Paar von beweglichen Teilen abgestimmten Weise geöffnet werden, wodurch es leicht zum Einklemmen der Finger kommen kann. Diese Abdeckung weist einen niedrigen Automatisierungsgrad auf und die Bedienung ist sehr mühsam.
2. 2. Die Schutz vor Luftbewegungen bietende Abdeckung gemäß der obengenannten Veröffentlichung verfügt über keine Beleuchtungsfunktion und ist bei Nacht schwer zu bedienen. Daher ist ihre Wägeeffizienz niedrig.

The above invention has a simple structure by which the function of protecting against air movement during the weighing operation can be achieved, and enables easy operation. Furthermore, a plurality of movable parts are provided, by means of which the objects to be measured can be inserted and removed. However, the following problems still exist in this invention:

1. 1. In the air movement protection cover according to the above-mentioned publication, the feeding door must be manually opened in a manner matched with the pair of moving parts, whereby pinching of the fingers can easily occur. This cover has a low degree of automation and the operation is very tedious.
2. 2. The protection against air movement providing cover according to the above publication has no lighting function and is difficult to operate at night. Therefore, their weighing efficiency is low.

Object of the invention

In order to remedy the above shortcomings, the inventor has devoted himself to solving the problem and has finally provided protection against air movement coverage for electronic scales for measuring the mass of minute objects.

Technical solution

In view of the problems of the prior art, the present invention provides protection against air movement-providing coverage for electronic scales for measuring the mass of minute objects. After the use of the air movement cover for electronic scales to measure the mass of minute objects, the supply door of the air movement protection cover need not be opened manually. The fact that the feed door is driven by the drive motor for automatic up and down movement, the visibility at night and thus the weighing efficiency can be significantly increased.

In order to solve the above technical problems, a technical solution according to the invention, as described below, is proposed.

The present invention provides a cover for electronic scales that provides air movement protection for measuring the mass of minute objects that comprises a cover housing, the cover housing having an upper base, a lower base, side walls and a supply door, wherein a plurality of lights are mounted on the outer surface of the upper base, the lower base is provided with a storage tray for weighing, wherein the side walls with the upper base and the lower base are integrally formed, wherein the Side walls are each provided with a left and a right sliding slot, wherein the feed door is adapted to the left and the right sliding slot, wherein a drive motor is mounted on the inner side surface of the feed door, wherein one end of the output shaft of the drive motor with a gear and with a gear rack is provided, wherein one end of the rack on the lower base and the other end of the rack is fixed to the upper base surface, wherein the rack is perpendicular to the lower base surface and upper base.

Here, one end of the rack may be provided with a first stroke switch and the other end of the rack with a second stroke switch.

Furthermore, the opening way of the feed door can be as follows: The feed door is perpendicular to the upper base and lower base and is moved from bottom to top.

Further, the cover according to the invention may comprise a control panel, wherein the control panel is disposed on the outer surface of the feed door, and wherein the control panel is electrically connected to a lithium battery pack and the lights, respectively.

Further, a power button, a lighting button, a button for the forward rotation of the drive motor and a button for the reverse rotation of the drive motor may be provided on the outer surface of the control panel.

Furthermore, a microcontroller control unit may be arranged in the control panel, wherein the microcontroller control unit comprises an information acquisition module and a bridge motor drive module, wherein the input of the information acquisition module is electrically connected to the output of the first Hubschalter or the output of the second Hubschalters, and wherein the Bridge motor drive module is electrically connected to the drive motor.

Furthermore, the output voltage of the battery unit can be a 48 V DC voltage.

Further, the lights may be one of the following types of lights: high-pressure sodium lamp, metal halide lamp, energy-saving lamp, fluorescent lamp, LED lamp.

Further, the upper base, the lower base, the side walls and the supply door may all be made of one of the following materials: tempered glass, insulating glass, flat glass.

Further, the drive motor may be a DC stepper motor.

1. 1. Bei der vorliegenden Erfindung sind die Seitenwände der Schutz vor Luftbewegungen bietenden Abdeckung jeweils mit einem linken und einem rechten Gleitschlitz versehen, wobei die Zufuhrtür auf den linken und den rechten Gleitschlitz abgestimmt ist, wobei ein Antriebsmotor auf der inneren Seitenfläche der Zufuhrtür angebracht ist, wobei ein Ende der Abtriebswelle des Antriebsmotors mit einem Zahnrad und mit einer auf das Zahnrad abgestimmten Zahnstange versehen ist, wobei ein Ende der Zahnstange an der unteren Grundfläche und das andere Ende der Zahnstange an der oberen Grundfläche befestigt ist, wobei die Zahnstange senkrecht zur unteren Grundfläche und oberen Grundfläche steht, wodurch das Zahnrad und die Zahnstange miteinander in Eingriff stehen können und die Zufuhrtür zum Auf- und Abbewegen gebracht werden kann, um so das automatische Anheben bzw. Absenken der Zufuhrtür zu gewährleisten.
2. 2. Bei der vorliegenden Erfindung sind mehrere Leuchten auf der inneren Oberfläche der oberen Grundfläche der Schutz vor Luftbewegungen bietenden Abdeckung angeordnet, wobei das Bedienfeld mit einem Beleuchtungstaster zur Steuerung des Ein- und Ausschaltens der Leuchten versehen ist, wodurch im Nachtbetrieb die Erkennbarkeit beim Abwiegen verbessert wird, um dadurch die Wägeeffizienz im Nachtbetrieb zu erhöhen.
3. 3. Bei der vorliegenden Erfindung ist ein Ende der Zahnstange der Schutz vor Luftbewegungen bietenden Abdeckung mit einem ersten Hubschalter und das andere Ende mit einem zweiten Hubschalter versehen, wobei der Antriebsmotor bis zu einem Punkt angehoben oder abgesenkt wird, an dem er mit dem ersten Hubschalter oder mit dem zweiten Hubschalter in Kontakt kommt, wodurch das automatische Anheben bzw. Absenken des Antriebsmotors realisiert werden kann, um dadurch das automatische Öffnen und Schließen der Zufuhrtür zu ermöglichen. Die Erfindung hat den Vorteil eines hohen Automatisierungsgrads und den, dass das Personal in die Lage versetzt wird, beim Arbeiten die Hände frei zu haben.
4. 4. In der vorliegenden Erfindung ist das Bedienfeld auf der äußeren Oberfläche der Zufuhrtür angeordnet, wobei eine Mikrocontroller-Steuereinheit im Bedienfeld angeordnet ist, wobei die Mikrocontroller-Steuereinheit ein Informationserfassungsmodul und ein Brückenmotor-Antriebsmodul umfasst, wobei der Eingang des Informationserfassungsmoduls elektrisch mit dem Ausgang des ersten Hubschalters bzw. dem Ausgang des zweiten Hubschalters verbunden ist, wobei das Brückenmotor-Antriebsmodul elektrisch mit dem Antriebsmotor verbunden ist, wobei das Bedienfeld jeweils elektrisch mit einem Lithium-Batteriepack und den Leuchten verbunden ist, wobei ein Netztaster, ein Beleuchtungstaster, ein Taster für die Vorwärtsdrehung des Antriebsmotors und ein Taster für die Rückwärtsdrehung des Antriebsmotors auf der äußeren Oberfläche des Bedienfelds vorgesehen sind. Das Gerät ist einfach zu bedienen und weist einen hohen Automatisierungsgrad auf.

The following describes the advantageous effects of the present invention:

1. 1. In the present invention, the sidewalls of the air movement protection cover are each provided with left and right slide slots, the feed door being tuned to the left and right slide slots, with a drive motor mounted on the inner side surface of the feed door. wherein one end of the output shaft of the drive motor is provided with a gear and a rack geared to the gear, one end of the rack being fixed to the lower base and the other end of the rack being fixed to the upper base, the rack being perpendicular to the lower base and upper base, whereby the gear and the rack can be engaged with each other and the feed door can be moved up and down, so as to ensure the automatic raising or lowering of the feed door.
2. 2. In the present invention, a plurality of lights are disposed on the inner surface of the upper base of the air movement cover providing protection, and the control panel is provided with a lighting button for controlling the turning on and off of the lights, thereby improving the detectability in weighing at night in order to increase the weighing efficiency in night mode.
3. 3. In the present invention, one end of the rack providing the air movement protection cover is provided with a first lift switch and the other end with a second lift switch, the drive motor being raised or lowered to a point where it engages the first lift switch or comes into contact with the second stroke switch, whereby the automatic lifting or lowering of the drive motor can be realized, thereby enabling the automatic opening and closing of the feed door. The invention has the advantage of a high degree of automation and that the staff is enabled to have their hands free while working.
4. 4. In the present invention, the control panel is disposed on the outer surface of the feed door with a microcontroller control unit disposed in the control panel, the microcontroller control unit comprising an information acquisition module and a bridge motor drive module, the input of the information acquisition module electrically coupled to the output the first Hubschalter or the output of the second Hubschalters is connected, wherein the bridge motor drive module is electrically connected to the drive motor, wherein the control panel is electrically connected to a lithium battery pack and the lights, wherein a power button, a lighting button, a button are provided for the forward rotation of the drive motor and a button for the reverse rotation of the drive motor on the outer surface of the control panel. The device is easy to use and has a high degree of automation.

The above description merely gives an overview of the technical solution of the present invention. In order to provide a better understanding of the technical means of the present invention, a preferred embodiment will be described below in detail with reference to the accompanying drawings. According to the description, the present invention can be easily realized by a person skilled in the art.

list of figures

• 1 eine schematische Ansicht des Aufbaus gemäß der vorliegenden Erfindung,
• 2 eine linke Ansicht des Aufbaus gemäß der vorliegenden Erfindung und
• 3 ein Steuerungsschema gemäß der vorliegenden Erfindung.

The drawings used to explain the embodiment show

• 1 a schematic view of the structure according to the present invention,
• 2 a left view of the structure according to the present invention and
• 3 a control scheme according to the present invention.

Detailed Description of the Preferred Embodiment

In order to facilitate a better understanding of the practice of the present invention, a concrete embodiment will be described in more detail below, so that the advantages and advantageous effects of the present invention will be readily understood by the description of those skilled in the art. The present invention can also be implemented in various other ways, i. H. Various modifications and changes can be made without departing from the scope of the protection claims.

It will open 1 and 2 directed. The air movement protection cover for electronic scales for measuring the mass of minute objects comprises a cover housing 1 , wherein the cover housing an upper base 1 - 1 , a lower footprint 1 - 2 , Side walls 1 - 3 and a feeder door 1-4 includes, with multiple lights 2 are attached to the outer surface of the upper base, the lower base with a storage shelf 3 is provided for weighing, wherein the side walls are formed integrally with the upper base surface and the lower base surface, wherein the side walls each having a left sliding slot 4 and a right sliding slot 5 are provided, wherein the feed door is tuned to the left and the right sliding slot, wherein a drive motor 6 is mounted on the inner side surface of the feed door, wherein one end of the output shaft of the drive motor with a gear 6-1 and with a toothed rack tuned to the gear 7 is provided, wherein one end of the rack on the lower base surface and the other end of the rack is attached to the upper base surface, wherein the rack is perpendicular to the lower base surface and upper base.

One end of the rack is with a first lift switch 8th and the other end of the rack with a second lift switch 9 Mistake.

The following describes the opening style of the feed door: The feed door is perpendicular to the upper base and lower base and is moved from bottom to top.

Furthermore, the invention comprises a control panel 10 wherein the control panel is disposed on the outer surface of the feed door, the control panel each electrically connected to a lithium battery pack 11 and the lights is connected.

Furthermore, a power button 10-1 , a lighting button 10-4 , a button for the forward rotation of the drive motor 10-2 and a push-button for the reverse rotation of the drive motor 10-3 provided on the outer surface of the control panel.

Further, a microcontroller control unit 12 arranged in the control panel, wherein the microcontroller control unit is an information acquisition module 12-1 and a bridge motor drive module 12-2 wherein the input of the information acquisition module is electrically connected to the output of the first Hubschalter or the output of the second Hubschalters, wherein the bridge motor drive module is electrically connected to the drive motor.

Furthermore, the output voltage of the battery unit is a 48 V DC.

Furthermore, the luminaires are selected from one of the following luminaire types: high pressure sodium lamp, metal halide lamp, energy saving lamp, fluorescent lamp, LED lamp.

Further, the upper base, the lower base, the side walls and the supply door are all made of one of the following materials: tempered glass, insulating glass, flat glass.

Further, the drive motor is a DC stepper motor.

The following describes the working process and the working principle of the present invention:

In the present invention, the sidewalls of the airlaid cover are each provided with left and right slide slots, the feed door being tuned to the left and right slide slots, with a drive motor mounted on the inner side surface of the feed door End of the output shaft of the drive motor is provided with a gear and with a gear on the toothed rack, one end of the rack on the lower base and the other end of the rack is attached to the upper base, wherein the rack perpendicular to the lower base and upper Base surface, whereby the gear and the rack can be engaged with each other and the feed door can be moved up and down, so as to ensure the automatic raising or lowering of the feed door. One end of the rack providing the air movement protection cover is provided with a first lift switch and the other end is provided with a second lift switch, the drive motor being raised or lowered to a point where it contacts the first lift switch or the second lift switch whereby the automatic raising or lowering of the drive motor can be realized, thereby enabling the automatic opening and closing of the feed door. The invention has the advantage of a high degree of automation and that the staff is enabled to have their hands free while working. The invention further comprises a control panel, wherein the control panel is disposed on the outer surface of the feed door, wherein a microcontroller control unit is arranged in the control panel, wherein the microcontroller control unit comprises an information detection module and a bridge motor drive module, wherein the input of the information detection module electrically with the output of the first Hubschalter or the output of the second Hubschalters is connected, wherein the bridge motor drive module is electrically connected to the drive motor, wherein the control panel is electrically connected to a lithium battery pack and the lights, wherein a power button, a lighting button, a button for the forward rotation of the drive motor and a button for the reverse rotation of the drive motor are provided on the outer surface of the control panel. As the drive motor approaches the first or second lift switch, the lift switches are actuated, the information acquisition module collecting the status information of the lift switches and sending it to the microcontroller control unit, the microcontroller control unit issuing the Stop command to the bridge motor drive module sends, whereby the drive motor stops the operation. This means that the feed door is fully opened or completely closed. When the operator presses the drive motor forward rotation button or the drive motor reverse rotation button, the microcontroller controller sends the "forward rotation" command to the bridge motor drive module, causing the drive motor to start operating. In this way, the operation of opening (the feed door is raised until it comes into contact with the upper stroke switch) and the operation of closing (the feed door is lowered until it comes in contact with the lower stroke switch) of the feed door are performed , After measuring, the power button is pressed to turn off the power.

The present invention thus relates to a cover for electronic scales for measuring the mass of minute objects that comprises a cover housing, the cover housing having an upper base surface, a lower base surface, side walls and a supply door, wherein a plurality of luminaires on the outer surface of the upper base surface are fixed, wherein the lower base surface is provided with a storage tray for weighing, wherein the side walls with the upper base surface and the lower base are formed integrally, wherein the side walls are each provided with a left and a right sliding slot, wherein the supply door is matched with the left and right slide slot, wherein a drive motor is mounted on the inner side surface of the feed door, wherein one end of the output shaft of the drive motor is provided with a gear and with a toothed rack gear, wherein one end of the Za is attached to the lower base and the other end of the rack is fixed to the upper base, wherein the rack is perpendicular to the lower base and upper base, wherein one end of the rack with a first Hubschalter and the other end of the rack is provided with a second lift switch, further comprising a control panel for controlling the drive motor and the lamp, and wherein the control panel is attached to the supply door. The cover according to the invention for electronic scales has the advantages of a high degree of automation, a good visibility in night mode and the advantage that the staff has their hands free while working.

The above description represents only one embodiment of the invention and is not intended to limit the scope of the present invention. All equivalent structures or equivalent methods modified on the basis of the content of the specification and the accompanying drawings of the present invention or applied directly or indirectly to other related technical fields are also within the scope of the present invention.

LIST OF REFERENCE NUMBERS

1

cover housing

1-4

supply door

2

lamp

3

storage shelf

4

left sliding slot

5

right sliding slot

6

drive motor

6-1

Gear,

7

rack

8th

first stroke switch

9

second stroke switch

10

Control panel

10-1

power button

10-2

Button for the forward rotation of the drive motor

10-3

Button for the reverse rotation of the drive motor

10-4

lighting button

11

Lithium Battery Pack

12

Microcontroller control unit

12-1

Information collection module

12-2

Bridge motor driver module

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 101675324 A [0004]

Claims (9)

A cover for electronic scales for protecting the measurement of the mass of minute objects, which comprises a covering housing (1), wherein the covering housing has an upper base area (1-1), a lower base area (1-2), side walls (1-3) and a feed door (1-4), wherein a plurality of lights (2) are mounted on the outer surface of the upper base surface, wherein the lower base surface is provided with a storage plate (3) for weighing, wherein the side walls with the upper side surface and the lower base surface are integrally formed, wherein the side walls are each provided with a left sliding slot (4) and a right sliding slot (5), wherein the feed door is tuned to the left and the right sliding slot, wherein a drive motor (6) is mounted on the inner side surface of the supply door, wherein one end of the output shaft of the drive motor with a gear (6-1) and with a on the gear a a matching rack (7) is provided, wherein one end of the rack on the lower base and the other end of the rack is fixed to the upper base, wherein the rack is perpendicular to the lower base and upper base, and wherein one end of the rack with a first stroke switch (8) and the other end of the rack is provided with a second stroke switch (9). Protection against air movement providing coverage Claim 1 , characterized in that the opening way of the feed door works such that the feed door is perpendicular to the upper base and lower base and is moved from bottom to top. Protection against air movement providing coverage Claim 1 , characterized in that it comprises a control panel (10), wherein the control panel (10) is arranged on the outer surface of the feed door, wherein the control panel is in each case electrically connected to a lithium battery pack (11) and the lights. Protection against air movement providing coverage Claim 3 , characterized in that a power button (10-1), a lighting button (10-4), a button for the forward rotation of the drive motor (10-2) and a button for the reverse rotation of the drive motor (10-3) on the outer surface of the control panel are provided. Protection against air movement providing coverage Claim 3 Characterized in that a microcontroller control unit (12) is arranged in the control panel, wherein the MCU controller comprises an information acquisition module (12-1) and a bridge motor drive module (12-2), the input of the data acquisition module electrically connected to the output the first Hubschalter or the output of the second Hubschalters is connected, wherein the bridge motor drive module is electrically connected to the drive motor. Protection against air movement providing coverage Claim 3 , characterized in that the output voltage of the battery unit is a 48 V DC voltage. Protection against air movement providing coverage Claim 1 characterized in that the luminaires are selected from a group of luminaire types comprising a high pressure sodium lamp, a metal halide lamp, an energy saving lamp, a fluorescent lamp and an LED lamp. Protection against air movement providing coverage Claim 1 , characterized in that the upper base surface, the lower base surface, the side walls and the supply door are all made of one of the materials tempered glass, insulating glass or flat glass. Protection against air movement providing coverage Claim 1 , characterized in that the drive motor is a DC stepping motor.

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