CN211825636U

CN211825636U - Cathode lamp replacing device of food heavy metal detector

Info

Publication number: CN211825636U
Application number: CN202020204694.1U
Authority: CN
Inventors: 孟东; 陈蕾
Original assignee: Xuzhou Quality And Technical Supervision Comprehensive Inspection And Testing Center Xuzhou Standardization Research Center
Current assignee: Xuzhou Quality And Technical Supervision Comprehensive Inspection And Testing Center Xuzhou Standardization Research Center
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-10-30
Anticipated expiration: 2030-02-24

Abstract

A cathode lamp replacing device of a food heavy metal detector is used for conveniently replacing a cathode lamp. It includes: the shell is provided with a plurality of through holes which are uniformly arranged along the circumferential direction; the rotary disc is rotatably arranged on the shell, a driving mechanism for driving the rotary disc to rotate intermittently is arranged on the shell, and the rotary disc is provided with lamp holes which correspond to the through holes one by one; the cathode lamp is movably arranged in the lamp hole, a spring is arranged between the cathode lamp and the turntable, and the cathode lamp is arranged in the lamp hole in a natural state; and the pushing mechanism is fixedly arranged on the shell and used for pushing the cathode lamp in the lamp hole out of the shell. The utility model provides a device is changed to food heavy metal detector's negative pole lamp can realize depositing to each cathode tube, examines time measuring when needs to certain element, and is rotatory through actuating mechanism drive carousel, aligns with electric telescopic handle until the negative pole lamp that corresponds, then the electric telescopic handle action releases the casing with the negative pole lamp.

Description

Cathode lamp replacing device of food heavy metal detector

Technical Field

The utility model belongs to the technical field of food heavy metal detection technique and specifically relates to a device is changed to negative pole lamp of food heavy metal detector.

Background

The atomic absorption spectrometry can be used for heavy metal detection, has high detection precision, but has the defect that the detection and analysis of various elements cannot be carried out. When different elements are detected, different hollow cathode lamps need to be replaced. Therefore, there is a need for a device for replacing cathode lamps of heavy metal detectors for food, which is convenient for replacing cathode lamps during detection of different elements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device is changed to food heavy metal detector's negative pole lamp for the problem of solution.

The utility model provides a technical scheme that its technical problem adopted is: food heavy metal detector's cathode lamp changes device, characterized by, it includes:

the shell is provided with a plurality of through holes which are uniformly arranged along the circumferential direction;

the rotary disc is rotatably arranged on the shell, a driving mechanism for driving the rotary disc to rotate intermittently is arranged on the shell, and the rotary disc is provided with lamp holes which correspond to the through holes one by one;

the cathode lamp is movably arranged in the lamp hole, a spring is arranged between the cathode lamp and the turntable, and the cathode lamp is arranged in the lamp hole in a natural state;

and the pushing mechanism is fixedly arranged on the shell and used for pushing the cathode lamp in the lamp hole out of the shell.

Further, the housing includes an upper semicircular portion and a lower rectangular portion, and a handle is fixed to the top of the housing.

Furthermore, a circular turntable groove is arranged on the front side surface of the shell, a positioning groove is also arranged on the front side surface of the shell, and the inner diameter of the positioning groove is larger than that of the turntable groove; the front side of the rotary disc is provided with a positioning plate, the rotary disc is arranged in the rotary disc groove, and the positioning plate is arranged in the positioning groove.

Furthermore, a limiting mechanism is arranged on the shell and used for achieving relative fixation between the rotary table and the shell along the axial direction of the rotary table.

Furthermore, be equipped with the ring channel on the circular outer wall of locating plate, stop gear includes the button of articulated installation on the casing, sets up the torsional spring between button and casing, and the effect end of button stretches into in the ring channel under the effect of torsional spring.

Furthermore, the driving mechanism comprises a motor arranged in the mounting groove on the shell, a worm fixed at the output end of the motor, a worm wheel meshed with the worm, and a gear coaxially arranged with the worm wheel, wherein teeth meshed with the gear are arranged on the outer wall of the rotary disc.

Furthermore, a spring seat is fixed in the lamp hole, a fixing ring is fixed on the outer wall of the cathode lamp, and the spring is arranged between the spring seat and the fixing ring.

Furthermore, the push-out mechanism comprises a fixed rod fixed on the front side wall of the shell, an electric telescopic rod fixed on the fixed rod and a push block fixed on the electric telescopic rod, wherein a driving ring is fixed on the outer wall of the cathode lamp, and the push block extends into the lamp hole to be in contact with the driving ring under the action of the electric telescopic rod so as to push the cathode lamp to move out of the lamp hole.

Further, the button is of an L-shaped structure.

The utility model has the advantages that: the utility model provides a cathode lamp replacing device of a food heavy metal detector,

drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic front view of the housing;

FIG. 3 is a rear schematic view of the housing;

FIG. 4 is a cross-sectional view of the housing;

FIG. 5 is a front view of the turntable;

FIG. 6 is a rear view of a cathode lamp mounted on a turntable;

FIG. 7 is a top view of the turntable;

FIG. 8 is a schematic view of a spacing mechanism;

FIG. 9 is a sectional view A-A of FIG. 6;

FIG. 10 is a schematic view of the ejection mechanism;

in the figure: the lamp comprises a shell 1, a through hole 10, a handle 11, a turntable groove 12, a central column 13, a positioning groove 14, a mounting groove 15, a worm wheel 16, a gear 17, a worm 18, an ear plate 181, a motor 182, a button groove 19, a button 2, a hinge shaft 21, a turntable 3, a positioning plate 31, an annular groove 311, a lamp hole 32, a central hole 33, a spring seat 34, a spring 35, a cathode lamp 4, a fixing ring 41, a driving ring 42, a fixing rod 5, an electric telescopic rod 51 and a push block 52.

Detailed Description

As shown in fig. 1 to 10, the present invention mainly includes a housing 1, a turntable 3, a driving mechanism, a cathode lamp, a push-out mechanism and a limiting mechanism, and the present invention is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 4, the housing 1 is a main body of the present invention, the upper portion of the housing is semicircular, and the lower portion of the housing is rectangular. A handle 11 is fixed to the top of the housing, and a turntable slot 12 is provided in the front side of the housing, the turntable slot being arranged such that the front side of the housing forms a center post 13. The front side of the shell is also provided with a positioning groove 14, and the outer diameter of the positioning groove is larger than that of the rotary disc groove. The constant head tank and carousel groove intercommunication still are equipped with a plurality of through-holes 10 that evenly set up along the circumference at the leading flank of casing, and the through-hole runs through the trailing flank of casing, and the through-hole is located between center post outer wall and the carousel inslot wall.

The lower part of the shell is provided with a mounting groove 15, a driving mechanism is arranged in the mounting groove, as shown in fig. 4, the driving mechanism comprises a motor 182 fixed in the mounting groove, a worm 18 fixed at the output end of the motor, a worm wheel 16 meshed with the worm, a gear 17 arranged coaxially with the worm wheel, and an ear plate 181 arranged in the mounting groove and used for supporting the worm. The mounting groove is communicated with the turntable groove.

As shown in fig. 5 to 7, the turntable 3 is a circular ring structure, and a circular positioning plate 31 is fixed at the front end of the turntable, and the outer diameter of the positioning plate is larger than that of the turntable. The turntable is provided with a plurality of lamp holes 32 which are uniformly arranged along the circumferential direction, and the number of the lamp holes is the same as that of the through holes and corresponds to that of the through holes one by one. The center of the turntable is a center hole 33, and the aperture of the center hole is equal to the outer diameter of the center column. As shown in fig. 9, a spring seat 34 is fixed in the lamp hole, and a spring 35 is fixed to the spring seat. A cathode lamp 4 is provided in the lamp hole, and a fixing ring 41 and a drive ring 42 are fixed to an outer wall of the cathode lamp, wherein an outer diameter of the fixing ring is larger than an outer diameter of the drive ring. The first end and the spring holder fixed connection of spring, the second end and the solid fixed ring fixed connection of spring, gu fixed ring and lantern hole sliding connection, the spring setting is in the outside of driving ring, and the downthehole lantern is arranged in to the cathode lamp under the effect of spring. The circular outer wall of the positioning plate is provided with an annular groove 311, and when the positioning plate is used, the turntable is arranged in the turntable groove until the positioning plate is completely arranged in the positioning groove. In order to realize the relative fixation between the rotary disc and the shell along the axial direction of the rotary disc. The outer wall of the rotary disc is provided with teeth which are meshed and matched with the gear, the intermittent rotation of the rotary disc can be driven under the action of the driving mechanism, and the rotation angle of the rotary disc per action is 360 degrees divided by the number of the through holes. The shell is provided with a limiting mechanism.

As shown in fig. 8, stop gear is including setting up button 2 in button groove 19, setting up the torsional spring between button and casing, and the button groove sets up on the casing lateral wall and communicates with the constant head tank, and the button passes through articulated shaft 21 and is connected with the casing is articulated, and the button is "L" shape structure, and the effect end of button stretches into in the constant head tank under the effect of torsional spring. Before filling in the carousel inslot with the carousel, press the upside of button for the constant head tank is shifted out to the effect end (lower extreme) of button, then fills in the carousel inslot with the carousel, loosens the button afterwards, and the effect end of button stretches into in the ring channel under the effect of torsional spring this moment, and then realizes following the axial relatively fixed of carousel between carousel and the casing.

As shown in fig. 10, a fixing rod 5 is fixed on the front side of the central column, an electric telescopic rod 51 is fixed on the upper portion of the fixing rod, a push block 52 is fixed on the electric telescopic rod, a circular groove is formed in the end face of the push block, and when the electric telescopic rod extends out, the push block contacts with a driving ring and further pushes the driving ring to enable the cathode lamp to move towards the rear side of the housing until the cathode lamp extends out of one section of the housing. The electric telescopic rod and the push block form a push-out mechanism for driving the cathode lamp to move out of the shell.

The utility model discloses, can realize depositing of each cathode tube, when needs examine certain element, it is rotatory through actuating mechanism drive carousel, align with electric telescopic handle until the negative pole lamp that corresponds, then the electric telescopic handle action releases the casing with the negative pole lamp. The utility model discloses use, convenient operation need not receive change cathode lamp alright with the detection to different elements of realization.

Claims

1. Food heavy metal detector's cathode lamp changes device, characterized by, it includes:

2. The device as claimed in claim 1, wherein the housing includes an upper semicircular portion and a lower rectangular portion, and a handle is fixed to a top of the housing.

3. The device for changing the cathode lamp of the food heavy metal detector as recited in claim 2, wherein a circular turntable groove is formed in the front side of the housing, and a positioning groove is further formed in the front side of the housing, the inner diameter of the positioning groove being larger than the inner diameter of the turntable groove; the front side of the rotary disc is provided with a positioning plate, the rotary disc is arranged in the rotary disc groove, and the positioning plate is arranged in the positioning groove.

4. The device for replacing the cathode lamp of the food heavy metal detector as recited in claim 1, wherein a limiting mechanism is disposed on the housing, the limiting mechanism is used for achieving relative fixation between the turntable and the housing along the axial direction of the turntable.

5. The device for replacing the cathode lamp of the food heavy metal detector as claimed in claim 4, wherein an annular groove is formed on the circular outer wall of the positioning plate, the limiting mechanism comprises a button which is hinged to the housing, and a torsion spring which is arranged between the button and the housing, and the action end of the button extends into the annular groove under the action of the torsion spring.

6. The device as claimed in claim 1, wherein the driving mechanism comprises a motor disposed in a mounting groove of the housing, a worm fixed to an output end of the motor, a worm wheel engaged with the worm, and a gear disposed coaxially with the worm wheel, and teeth engaged with the gear are disposed on an outer wall of the turntable.

7. The device as claimed in claim 1, wherein a spring seat is fixed in the lamp hole, a fixing ring is fixed on the outer wall of the cathode lamp, and the spring is disposed between the spring seat and the fixing ring.

8. The device as claimed in claim 1, wherein the pushing mechanism comprises a fixing rod fixed to a front side wall of the housing, an electric telescopic rod fixed to the fixing rod, and a pushing block fixed to the electric telescopic rod, wherein a driving ring is fixed to an outer wall of the cathode lamp, and the pushing block is extended into the lamp hole by the electric telescopic rod to contact with the driving ring, thereby pushing the cathode lamp out of the lamp hole.

9. The device as claimed in claim 5, wherein the button has an L-shaped structure.