CN111351993A

CN111351993A - Electrostatic attenuation tester

Info

Publication number: CN111351993A
Application number: CN202010178364.4A
Authority: CN
Inventors: 牛雯; 韩生兰
Original assignee: Qinghai Provincial Drug Inspection And Testing Institute
Current assignee: Qinghai Provincial Drug Inspection And Testing Institute
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-06-30
Anticipated expiration: 2040-03-13
Also published as: CN111351993B

Abstract

The invention discloses a static attenuation tester, and belongs to the field of detecting instruments. The device includes detection device and corona discharge device, still includes: the hand-operated device comprises a shell, a handle and a handle, wherein the shell is provided with two operation holes for accommodating hands to extend into; the detection device comprises a clamping device used for clamping the sample to be detected; the protection device comprises openers arranged corresponding to the operation holes, knobs in one-to-one correspondence with the openers, second driving gears in one-to-one correspondence with the knobs, driving racks and high-voltage switches, the knobs are rotatably arranged on the shell, and the knobs and the second driving gears are coaxially arranged; when the knob rotates, the opener is driven to open or close; the high-voltage switch is fixedly arranged on the shell and used for controlling the opening and closing of the corona discharge device. The invention can avoid the abnormal power-off of the corona discharge device caused by misoperation, and can ensure that the automatic forced power-off can be realized when the two openers are completely opened, thereby protecting the personal safety.

Description

Electrostatic attenuation tester

Technical Field

The invention relates to the field of detection instruments, in particular to a static attenuation tester.

Background

Static decay testers are instruments suitable for measuring the static properties of fibers, yarns, fabrics, carpets, decorative fabrics and other various fabrics or various sheet-like finished goods.

The instrument main unit consists of a corona discharge device and a probe detector. The fabric is discharged in a timing mode by utilizing a given high-voltage electric field, static electricity is induced to the fabric, and therefore detection of the electrostatic electricity quantity, the half-life period of the attenuation of the electrostatic voltage and the residual quantity of the electrostatic electricity is carried out, and the electrostatic property of the detected fabric is displayed.

When the classical attenuation tester in the prior art is used, the corona discharge device needs to be manually closed after the discharge is finished, and then a sample is disassembled. However, when an operator touches the high-voltage box body, no forced power-off measures are provided, and if the operator forgets to close the high-voltage box body, personal safety is threatened.

Disclosure of Invention

The invention provides a static attenuation tester which can solve the problem that the tester in the prior art is unsafe to use.

An electrostatic decay tester, including detection device and corona discharge device, still includes:

the detection device is arranged in the shell, and the shell is provided with two operation holes for accommodating hands to extend into;

the detection device comprises a clamping device used for clamping a sample to be detected;

the protection device comprises an opener which is arranged corresponding to the operation hole, knobs which are in one-to-one correspondence with the opener, second driving gears which are in one-to-one correspondence with the knobs, driving racks and high-voltage switches, the knobs are rotatably arranged on the shell, the knobs and the second driving gears are coaxially arranged, when the knobs rotate, the second driving gears are driven to rotate, and the driving racks are slidably arranged on the shell and meshed with the second driving gears; when the knob rotates, the opener is driven to open or close; the high-voltage switch is fixedly arranged on the shell and used for controlling the on-off of the corona discharge device;

when the two openers are in a fully opened state, the second driving gear drives the driving rack to move to a power-off position, the driving rack abuts against the high-voltage switch, and the corona discharge device is powered off;

when arbitrary the ware opens completely, the drive rack with high voltage switch breaks away from mutually, corona discharge device circular telegram.

Preferably, the opening and closing device comprises an upper sliding disc, a lower sliding disc, a plurality of sliding blocks and stop blocks which correspond to the sliding blocks one to one;

the upper sliding disc is circular, a first central hole is formed in the center of the upper sliding disc, first sliding grooves are uniformly formed in the upper sliding disc along the circumferential direction of the center, the track of each first sliding groove is arc-shaped and is arranged in an inclined mode overall towards one side, and a covered edge extends from the peripheral side of the upper sliding disc to one side;

the lower sliding disc is circular, a second central hole is formed in the center of the lower sliding disc, second sliding grooves are uniformly formed in the upper edge of the lower sliding disc along the circumferential direction of the center, the track of each second sliding groove is linear and is obliquely arranged on one side opposite to the first sliding groove, the surrounding side of the lower sliding disc is wrapped by the wrapping edges, and the lower sliding disc is fixedly connected to the side wall of the shell;

the first center hole and the second center hole correspond to the operation holes;

the sliding blocks are of an arc-shaped triangular structure at one side, the sliding blocks are uniformly arranged along the central circumference of the lower sliding disc, the sliding blocks are abutted in pairs to form an annular structure, the sliding blocks are positioned between the upper sliding disc and the lower sliding disc, connecting holes are formed in the sliding blocks, the first sliding grooves, the second sliding grooves, the sliding blocks and the stop blocks are in one-to-one correspondence, the stop blocks penetrate through the first sliding grooves and are rotatably connected to the connecting holes, the stop blocks are slidably arranged in the first sliding grooves, and limit sliding blocks are arranged on the side surfaces, facing the lower sliding disc, of the sliding blocks and are slidably arranged in the second sliding grooves;

when the upper sliding disc rotates, the sliding blocks are driven to move close to or away from each other;

the knob is coaxially provided with a driving wheel, the driving wheel is matched with the outer peripheral side of the upper sliding plate, and the driving wheel drives the upper sliding plate to rotate when rotating.

Preferably, an outer gear is disposed on an outer peripheral side of the upper sliding plate, a first driving gear is disposed on the driving wheel, and the outer gear is engaged with the first driving gear.

Preferably, the electrostatic discharge device further comprises an electrostatic discharge device and an electrostatic discharge switch, the electrostatic discharge device comprises a base, an electromagnet, a spring and an electrostatic discharge rod, the base is fixedly arranged on the shell, a guide hole is formed in the base, the electromagnet is fixedly arranged in the guide hole, one end of the spring is connected into the guide hole, the other end of the spring is connected to the electrostatic discharge rod, the electrostatic discharge switch is electrically connected with the electromagnet, and the base is grounded;

when the two openers are in a completely opened state, the second driving gear drives the driving rack to move to a power-off position, the driving rack abuts against the electrostatic release switch, the electromagnet is powered off, and the electrostatic release rod abuts against the clamping device and is conducted;

when any of the openers is not completely opened, the driving rack is separated from the electrostatic release switch, the electromagnet is electrified, and the electrostatic release rod is separated from the clamping device.

Preferably, the clamping device comprises a clamping plate and a fastener, the fastener is used for fastening the sample to be detected on the clamping plate, and the electrostatic discharge rod corresponds to the position of the clamping plate.

The invention provides an electrostatic attenuation tester, wherein a knob drives an opening and closing device to open and close when rotating, and simultaneously drives a driving rack to move through a second driving gear when rotating, because a single knob can only drive the driving rack to move for a certain distance when rotating, when two knobs are rotated to positions, the driving rack can touch a high-voltage switch, the phenomenon that a corona discharge device is not powered off due to misoperation is avoided, and meanwhile, when the two opening and closing devices are completely opened, the automatic forced power-off can be realized, and the personal safety is protected.

Drawings

FIG. 1 is a schematic structural diagram of an electrostatic decay tester provided by the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic structural diagram of a second electrostatic decay tester provided by the present invention;

FIG. 4 is an enlarged view of a portion B of FIG. 3;

FIG. 5 is a top view of FIG. 3;

FIG. 6 is a cross-sectional view taken at C-C of FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 6 at D;

fig. 8 is a schematic structural diagram of an opening and closing device of an electrostatic decay tester provided by the invention;

FIG. 9 is an exploded view of FIG. 8;

FIG. 10 is a schematic illustration of the explosion diagram of FIG. 8;

FIG. 11 is a first schematic structural view of the upper slide plate of FIG. 9;

FIG. 12 is a second schematic structural view of the upper slide plate of FIG. 9;

FIG. 13 is a third schematic structural view of the upper plate of FIG. 9;

FIG. 14 is a first schematic structural diagram of the slider shown in FIG. 9;

FIG. 15 is a second schematic structural diagram of the slider shown in FIG. 9;

FIG. 16 is a first schematic view of the structure of the lower slider of FIG. 9;

fig. 17 is a second structural schematic diagram of the lower sliding tray in fig. 9.

Description of reference numerals:

10. the protection device comprises a protection device 11, an upper sliding disc, 111, a first central hole, 112, a first sliding groove, 113, a wrapping edge, 12, a sliding block, 121, a connecting hole, 122, a limiting sliding block, 13, a stop block, 14, a lower sliding disc, 141, a second central hole, 142, a second sliding groove, 15, a knob, 151, a first driving gear, 16, a second driving gear, 17, a driving rack, 20, a shell, 21, a high-voltage switch, 22, an electrostatic release switch, 30, a detection device, 40, a clamping device, 41, a clamping plate, 50, a base, 51, an electromagnet, 52, a spring, 53 and an electrostatic release rod.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

The first embodiment is as follows:

as shown in fig. 1 to 3, an electrostatic decay tester provided by an embodiment of the present invention includes a detecting device 30 and a corona discharge device, and further includes a housing 20, a holding device 40, and a protecting device 10; wherein,

the detection device 30 is arranged in the shell 20, the shell 20 is provided with two operation holes for accommodating hands to extend into, when a detection sample is mounted and dismounted, two hands are respectively inserted into one operation hole to operate the clamping device 40;

the detection device 30 comprises a clamping device 40 and a sensor, the sensor is used for detecting the change of electric charge and the like, the clamping device 40 is used for clamping a sample to be detected so as to fix the sample to be detected, and a clamping device in the prior art can be adopted;

the protection device 10 comprises an opener which is arranged corresponding to the operation hole, knobs 15 which are in one-to-one correspondence with the opener, second driving gears 16 which are in one-to-one correspondence with the knobs 15, a driving rack 17 and a high-voltage switch 21, when the opener is opened, a through hole is formed in the middle of the opener and corresponds to the operation hole, the knobs 15 are rotatably arranged on the shell 20, the knobs 15 and the second driving gears 16 are coaxially arranged, when the knobs 15 rotate, the second driving gears 16 are driven to rotate, and the driving rack 17 is slidably arranged on the shell 20 and meshed with the second driving gears 16; when the knob 15 rotates, the opener is driven to open or close; the high-voltage switch 21 is fixedly arranged on the shell 20 and used for controlling the on-off of the corona discharge device;

the knob 15 has a travel limit, when the knob is rotated to a first limit point, the opening and closing device is completely opened, and when the knob is rotated to a second limit point, the opening and closing device is completely closed;

when disassembly or assembly operation is required, as shown in fig. 4, the knobs 15 are rotated to drive the openers to be opened, and simultaneously drive the second driving gears 16 to drive the driving racks 17 to move, when one knob 15 is rotated in place, only a part of distance of the driving rack 17 can be driven, the driving racks 17 cannot abut against the high-voltage switch 21, when two knobs 15 are rotated in place, the second driving gears 16 drive the driving racks 17 to move to the position abutting against the high-voltage switch 21, at the moment, the two openers are both in a completely opened state, the driving racks 17 abut against the high-voltage switch 21, and the corona discharge device is powered off, so that the safety is improved;

when any one of the shutters is not completely opened or both shutters are not completely opened, the driving rack 17 and the high-voltage switch 21 cannot be abutted, the corona discharge device keeps a working state, and detection interruption cannot be caused by misoperation.

Example two:

on the basis of the first embodiment, as shown in fig. 8 to 17, the opening and closing device includes an upper slide plate 11, a lower slide plate 14, a plurality of slide blocks 12, and stoppers 13 corresponding to the slide blocks 12 one to one;

as shown in fig. 11 to 13, the upper sliding tray 11 is circular, a first central hole 111 is formed in the center of the upper sliding tray 11 to form an annular structure, first sliding grooves 112 are uniformly formed in the upper sliding tray 11 along the central circumferential direction, the track of the first sliding grooves 112 is arc-shaped and is generally inclined towards one side, and a covered edge 113 is extended from one side of the outer circumference of the upper sliding tray 11;

as shown in fig. 16 and 17, the lower sliding tray 14 is circular, a second central hole 141 is formed in the center of the lower sliding tray 14, second sliding grooves 142 are uniformly formed in the lower sliding tray 14 along the central circumferential direction, the track of each second sliding groove 142 is linear and is obliquely arranged on the side opposite to the first sliding groove 112, the edge covering 113 of the upper sliding tray 11 covers the circumferential side of the lower sliding tray 14, a boss is arranged on the housing 20, the lower sliding tray 14 is fixedly mounted on the boss, and the boss can compensate for a height difference formed by the edge covering 113; the first and

second center holes

111 and 141 correspond to the operation holes and are sized accordingly;

as shown in fig. 14 and 15, sliding block 12 has an arc-shaped triangular structure on one side, a plurality of sliding blocks 12 are uniformly arranged along the central circumference of lower sliding plate 14, a plurality of sliding blocks 12 abut against each other in pairs to form an annular structure, sliding block 12 is located between upper sliding plate 11 and lower sliding plate 14, sliding block 12 is provided with connecting hole 121, first sliding groove 112, second sliding groove 142, sliding block 12 and stopper 13 are in one-to-one correspondence, stopper 13 passes through first sliding groove 112 and is rotatably connected to connecting hole 121, stopper 13 is slidably disposed in first sliding groove 112, a side of sliding block 12 facing lower sliding plate 14 is provided with limiting slider 122, and limiting slider 122 is slidably disposed in second sliding groove 142;

when upper sliding disc 11 rotates, stopper 13 is driven to move through first sliding chute 112, when stopper 13 moves, sliding block 12 is driven to move, because sliding block 12 is provided with limiting slider 122, limiting slider 122 receives the limiting action of second sliding chute 142, limiting slider 122 can only move along second sliding chute 142, so sliding blocks 12 are driven to approach or move away from each other finally, the pores formed among a plurality of sliding blocks 12 can also be reduced along with the mutual approaching of sliding blocks 12, and are enlarged along with the mutual moving away of sliding blocks 12;

as shown in fig. 1, when it is necessary to open, knob 15 is rotated, knob 15 drives upper sliding plate 11 to rotate, so that sliding blocks 12 can be separated from each other, and first central hole 111, second central hole 141 and the operation hole are exposed.

Further, an outer gear is provided on the outer peripheral side of the upper pulley 11, a first drive gear 151 is provided on the drive wheel, and the outer gear meshes with the first drive gear 151.

Example three:

as shown in fig. 5 to 7, in the experiment, even if the high voltage power supply is cut off, a large amount of static electricity still remains on the sample, and after the detection is finished, when the sample is replaced, the remaining static electricity may injure the operator by mistake, therefore, the embodiment further includes a static electricity releasing device and a static electricity releasing switch 22, which includes a base 50, an electromagnet 51, a spring 52 and a static electricity releasing rod 53, the base 50 is fixedly disposed on the housing 20, the base 50 is opened with a guide hole, the electromagnet 51 is fixedly disposed in the guide hole, one end of the spring 52 is connected in the guide hole, the other end is connected to the static electricity releasing rod 53, the static electricity releasing switch 22 is electrically connected with the electromagnet 51, the base 50 is grounded, and the static electricity releasing rod 53 is made of a conductive magnetic material, such as;

when the two openers are in a completely opened state, the second driving gear 16 drives the driving rack 17 to move to a power-off position, the driving rack 17 abuts against the electrostatic release switch 22, the electromagnet 51 is powered off, at the moment, the electrostatic release rod 53 loses the action force of the magnetic field, moves towards the direction close to the clamping device 40 under the action of the spring 52, abuts against the clamping device, the clamping device is conductive, static electricity is conducted to the ground through the electrostatic release rod 53, and accidental injury is avoided;

when any opener is not completely opened, the driving rack 17 is separated from the electrostatic release switch 22, the electromagnet 51 is electrified, the electrostatic release rod 53 overcomes the elastic force of the spring 52 under the action of the magnetic field force, the electrostatic release rod 53 is separated from the clamping device 40, and misoperation cannot be caused.

Specifically, a stopper 13 is provided at one side of the L-shaped clamp plate 41, and the electrostatic discharge bar 53 corresponds to the stopper 13.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. The utility model provides an electrostatic decay tester, includes detection device and corona discharge device, its characterized in that still includes:

2. The electrostatic decay tester of claim 1, wherein the shutter comprises an upper slide plate, a lower slide plate, a plurality of slide blocks and stop blocks corresponding to the slide blocks one to one;

3. The electrostatic decay tester according to claim 2, wherein an outer gear is disposed on an outer peripheral side of the upper sliding plate, and a first driving gear is disposed on the driving wheel, and the outer gear is engaged with the first driving gear.

4. The electrostatic decay tester according to any one of claims 1 to 3, further comprising an electrostatic discharge device and an electrostatic discharge switch, wherein the electrostatic discharge device and the electrostatic discharge switch comprise a base, an electromagnet, a spring and an electrostatic discharge rod, the base is fixedly arranged on the housing, the base is provided with a guide hole, the electromagnet is fixedly arranged in the guide hole, one end of the spring is connected in the guide hole, the other end of the spring is connected to the electrostatic discharge rod, the electrostatic discharge switch is electrically connected to the electromagnet, and the base is grounded;

5. The electrostatic decay tester according to claim 4, wherein the clamping means comprises a clamping plate and a fastening member for fastening the sample to be tested to the clamping plate, and the electrostatic discharge bar corresponds to the position of the clamping plate.