CN110967592A

CN110967592A - Device for measuring crystal oscillator element DLD

Info

Publication number: CN110967592A
Application number: CN201811132162.5A
Authority: CN
Inventors: 何龙; 施小罗
Original assignee: Hunan Jiayeda Electronics Co ltd
Current assignee: Hunan Jiayeda Electronics Co ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2020-04-07
Anticipated expiration: 2038-09-27
Also published as: CN110967592B

Abstract

The invention discloses a device for measuring crystal oscillator element DLD, which comprises a bottom plate, a support rod, a top plate, an open shell, a guide rail, a servo motor, a screw rod, a ball nut, a sliding block, a connecting strip, a U-shaped strip, a connecting block, a sheep hair brush, an electric push rod, a connecting rod, a pressing block, a sample strip, a rubber block, a crystal oscillator body, cleaning comb teeth, a first connecting wire, a plastic rubber sleeve, a wire, a contact head, a spring, a limiting ring, a wire storage box, a rotating shaft, a reel, a torsion spring, a second connecting wire, a fixing box, a circuit board, an arbitrary waveform generator, a digital oscilloscope, an output interface, a high-frequency non-inductive adjustable resistor, a digital display power meter, a fan, a first filter screen, a drying agent layer, an exhaust. According to the invention, a plurality of crystal oscillator bodies can be loaded at one time through the sample strip, the contact heads for measurement are driven to move through the horizontal driving structure, and the crystal oscillator bodies can be measured one by one, so that the phenomenon that workers take the crystal oscillator bodies repeatedly to load and unload materials is avoided.

Description

Device for measuring crystal oscillator element DLD

Technical Field

The invention relates to a device for measuring DLD (digital Living device), in particular to a device for measuring DLD of a crystal oscillator element, belonging to the technical field of piezoelectric crystal element application.

Background

Crystal oscillator elements are widely used in various analog or digital circuits as a basic electronic component to provide a high-stability clock signal for the electronic circuit; the DLD characteristic of the crystal oscillator element is important for the stability of the crystal oscillator element during use, and it reveals the characteristic of the crystal element that the resonance resistance varies with the excitation level and the excitation level reliability.

When the crystal oscillator element is used for measurement, a pin of the crystal oscillator element needs to be in contact with a measuring device to form a loop, when the crystal oscillator element is used for feeding, the crystal oscillator element is generally manually carried out, after one crystal oscillator element is used for measurement, the crystal oscillator element needs to be taken down and replaced by a new crystal oscillator element, the crystal oscillator body needs to be taken repeatedly manually for feeding and discharging during measurement, the labor intensity of workers is high, and the measurement efficiency is possibly low; when the measurement of the crystal oscillator element is performed, dust may adhere to the pins, which may affect the accuracy of the measurement of the crystal oscillator element DLD. Therefore, an apparatus for measuring the crystal oscillator DLD is proposed to solve the above problems.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a device for measuring a crystal oscillator element DLD.

The invention achieves the aim through the following technical scheme, and the device for measuring the DLD of the crystal oscillator element comprises a bottom plate, a sample strip, a first connecting wire, a second connecting wire, a horizontal driving structure and a clamping structure, wherein the bottom plate is fixedly connected with a top plate through a supporting rod;

the horizontal driving structure comprises an open shell and a sliding block which are fixedly installed at the top of a bottom plate, a guide rail is installed at the bottom of the open shell in an embedded mode, the guide rail is connected with the sliding block in a sliding mode, the inner side wall of the open shell is rotatably connected with a screw rod, the surface of the screw rod is connected with a ball nut in a threaded mode, the bottom of the ball nut is fixedly connected with the top of the sliding block, a servo motor is fixedly installed on the outer wall of one side of the open shell, an output shaft of the servo motor is fixedly connected with one end of the screw rod, the top of the ball nut is fixedly connected with a U-shaped strip through a connecting strip, a goat hair brush is fixedly installed on one side of the U-shaped strip through a connecting block, a concave hole is formed in the inner side of the top of the U-shaped strip, contact heads are elastically connected inside the concave hole through springs, the number of, the plastic rubber sleeve is wrapped on the surfaces of the two wires, and one end of the wire in the first connecting wire is welded with the surface of the contact head;

the clamping structure comprises two electric push rods fixedly arranged at the bottom of the top plate and pressing blocks arranged on two sides of the sample strip, the two electric push rods are symmetrically arranged between the two electric push rods, the output ends of the electric push rods are fixedly connected with connecting rods, and the tail ends of the connecting rods are fixedly connected with one side of the pressing blocks;

a plurality of rubber blocks which are distributed at equal intervals are fixedly arranged at the top of the sample strip, and a crystal oscillator body is arranged between every two adjacent rubber blocks;

the top of the top plate is fixedly provided with a fixed box, a circuit board is fixedly arranged in the fixed box, the front surface of the fixed box is embedded with an arbitrary waveform generator, a digital oscilloscope, an output interface, a high-frequency non-inductive adjustable resistor and a digital display power meter, the digital display power meter and the output interface are both electrically connected with a single chip microcomputer embedded and arranged on the surface of the circuit board, the digital oscilloscope is electrically connected with the single chip microcomputer through the arbitrary waveform generator, the high-frequency non-inductive adjustable resistor is embedded and arranged on the surface of the circuit board, the tail end of the first connecting wire is connected with one end of the second connecting wire, and the tail end of the second connecting wire is welded with the;

the opening part of the both sides of fixed case is fixed mounting respectively has fan and air discharge fan, fixed case one side fixed mounting is kept away from to the fan has first filter screen, the air discharge fan is kept away from fixed case one side fixed mounting has the second filter screen, the drier layer is laid on first filter screen surface.

Preferably, the connecting rods are of U-shaped structures, the number of the connecting rods is two, and the two connecting rods are respectively located on two sides of the top of the sample strip.

Preferably, the guide rail, the screw rod and the sample strip are all located on the same vertical plane, and the guide rail and the screw rod are all arranged in parallel with the sample strip.

Preferably, handles are fixedly arranged on two sides of the sample strip.

Preferably, a plurality of cleaning comb teeth are fixedly arranged on one side of the front surface and one side of the back surface of the sample strip.

Preferably, the bristles of the goat hair brush are in contact with the surface of the sample strip.

Preferably, the top fixed mounting of roof has the line box of depositing, it is connected with the pivot to deposit the inside rotation of line box, pivot surface rigid coupling has the reel, first connecting wire is around winding on the reel surface, and the junction and the reel surface rigid coupling of first connecting wire and second connecting wire, first connecting wire runs through the through-hole of seting up in line box one side of depositing, the torsional spring has been cup jointed on the pivot surface, and the torsional spring both ends respectively with deposit line box bottom inner wall and reel bottom rigid coupling.

Preferably, bottom plate and roof all set up with the bracing piece is perpendicular, and the bracing piece figure is a plurality of, a plurality of bracing piece evenly distributed is in bottom plate top both sides.

Preferably, the tail end of the contact is of a conical structure, and the contact is connected in a sliding mode along the length direction of the concave hole.

Preferably, the surface of the first connecting wire is sleeved with a limiting ring, and the limiting ring is fixedly connected with the side wall of the supporting rod.

The invention has the beneficial effects that:

1. the device is reasonable in structure, a plurality of crystal oscillator bodies can be obtained at one time through the sample strip, the contact heads for measurement are driven to move through the horizontal driving structure, and the crystal oscillator bodies can be measured one by one, so that workers are prevented from repeatedly taking the crystal oscillator bodies to carry out loading and unloading, the labor intensity of the workers is reduced, and the measurement efficiency is improved;

2. before the measurement of the crystal oscillator body is carried out, the horizontal driving structure can drive the goat hair brush to brush and sweep the pins of the crystal oscillator body, dust on the pins can be swept, and meanwhile, pressure is provided for the contact head to be in contact with the pins through the springs, so that the contact head can be in better contact with the pins, and the measurement accuracy of DLD of the crystal oscillator body is guaranteed;

3. through the combined action of fan and air discharge fan, can dispel the heat for fixed incasement part spare, the heat that can effectual messenger fixed incasement portion produced is along with the air current discharge, can effectually avoid the moisture among the outside air to get into through the drier layer simultaneously, can protect fixed incasement part spare.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partially enlarged view of the portion A shown in FIG. 1 according to the present invention;

FIG. 3 is a schematic side view of the U-shaped strip of the present invention;

FIG. 4 is a schematic cross-sectional view of the goat hair brush and the sample strip of the present invention;

FIG. 5 is a schematic view of the internal structure of the storage box of the present invention;

FIG. 6 is a schematic view of a first screen and desiccant layer according to the present invention;

fig. 7 is a working principle diagram of the present invention.

In the figure: 1. the device comprises a bottom plate, 2, a support rod, 3, a top plate, 4, an open shell, 5, a guide rail, 6, a servo motor, 7, a screw rod, 8, a ball nut, 9, a sliding block, 10, a connecting strip, 11, a U-shaped strip, 12, a connecting block, 13, a goat hair brush, 14, an electric push rod, 15, a connecting rod, 16, a pressing block, 17, a sample strip, 18, a rubber block, 19, a crystal oscillator body, 20, cleaning comb teeth, 21, a first connecting wire, 2101, a plastic rubber sleeve, 2102, a lead, 22, a contact head, 23, a spring, 24, a limiting ring, 25, a wire storage box, 2501, a rotating shaft, 2502, a reel, 2503, a torsion spring, 26, a second connecting wire, 27, a fixing box, 2701, a circuit board, 28, an arbitrary waveform generator, 29, a digital oscilloscope, 30, an output interface, 31, a high-frequency non-inductive adjustable resistor, 32, a digital display power meter, 33, a fan, Desiccant layer, 35, exhaust fan, 36, second filter screen, 37, singlechip, 38, handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, an apparatus for measuring a DLD of a crystal oscillator device includes a bottom plate 1, a sample strip 17, a first connecting line 21, a second connecting line 26, a horizontal driving structure, and a clamping structure, wherein the bottom plate 1 is fixedly connected to a top plate 3 through a supporting rod 2;

the horizontal driving structure comprises an open shell 4 and a sliding block 9 which are fixedly installed at the top of a bottom plate 1, a guide rail 5 is installed at the bottom of the open shell 4 in an embedded mode, the guide rail 5 is connected with the sliding block 9 in a sliding mode, the guide rail 5 and the sliding block 9 provide guiding for movement of a ball nut 8, the inner side wall of the open shell 4 is connected with a screw rod 7 in a rotating mode, the surface of the screw rod 7 is connected with the ball nut 8 in a threaded mode, the bottom of the ball nut 8 is fixedly connected with the top of the sliding block 9, a servo motor 6 is fixedly installed on the outer wall of one side of the open shell 4, the output shaft of the servo motor 6 is fixedly connected with one end of the screw rod 7, the top of the ball nut 8 is fixedly connected with a U-shaped strip 11 through a connecting strip 10, a sheep brush 13 is fixedly installed on one side of the U-shaped, the spring 23 provides pressure for the contact heads 22, the number of the contact heads 22 is two, the two contact heads 22 are respectively contacted with the front side and the back side of the sample strip 17, the first connecting line 21 and the second connecting line 26 are both composed of a plastic rubber sleeve 2101 and two conducting wires 2102, the plastic rubber sleeve 2101 is wrapped on the surfaces of the two conducting wires 2102, one end of the conducting wire 2102 inside the first connecting line 21 is welded with the surface of the contact head 22, and the conducting wire 2102 is used for current transmission;

the clamping structure comprises electric push rods 14 fixedly arranged at the bottom of the top plate 3 and pressing blocks 16 arranged at two sides of a sample strip 17, the number of the electric push rods 14 is two, the two electric push rods 14 are symmetrically arranged, the output end of each electric push rod 14 is fixedly connected with a connecting rod 15, and the tail end of each connecting rod 15 is fixedly connected with one side of each pressing block 16;

a plurality of rubber blocks 18 distributed at equal intervals are fixedly arranged at the top of the sample strip 17, a crystal oscillator body 19 is arranged between every two adjacent rubber blocks 18, and when the pressing block 16 presses the rubber blocks 18, the rubber blocks 18 can provide limit for the crystal oscillator body 19 through elastic deformation of the rubber blocks 18;

a fixed box 27 is fixedly installed at the top of the top plate 3, a circuit board 2701 is fixedly installed in the fixed box 27, an arbitrary waveform generator 28, a digital oscilloscope 29, an output interface 30, a high-frequency non-inductive adjustable resistor 31 and a digital display power meter 32 are installed in the front of the fixed box 27 in an embedded mode, the digital display power meter 32 and the output interface 30 are both electrically connected with a single chip microcomputer 37 which is installed on the surface of the circuit board 2701 in an embedded mode, the digital oscilloscope 29 is electrically connected with the single chip microcomputer 37 through the arbitrary waveform generator 28, the high-frequency non-inductive adjustable resistor 31 is installed on the surface of the circuit board 2701 in an embedded mode, the tail end of the first connecting wire 21 is connected with one end of the second connecting wire 26, the tail end of the second connecting wire 26 is welded with the surface of the circuit board 2701, and the DLD of the crystal oscillator body 19 can be measured through the establishment among the arbitrary waveform generator, the output interface 30 is connected to an external device, such as a computer;

opening part fixed mounting respectively of the both sides of fixed case 27 has fan 33 and air discharge fan 35, fixed case 27 one side fixed mounting has first filter screen 34 is kept away from to fan 33, air discharge fan 35 keeps away from fixed case 27 one side fixed mounting has second filter screen 36, desiccant layer 3401 is laid on first filter screen 34 surface, and desiccant layer 3401 can dry for the air of entering.

The connecting rods 15 are of U-shaped structures, the number of the connecting rods 15 is two, the two connecting rods 15 are respectively positioned on two sides of the top of the sample strip 17, and the connecting rods 15 are used for connecting the electric push rod 14 with the pressing block 16; the guide rail 5, the screw 7 and the sample strip 17 are all positioned on the same vertical plane, and the guide rail 5 and the screw 7 are all arranged in parallel with the sample strip 17, so that the contact head 22 can move along the length direction of the sample strip 17; handles 38 are fixedly arranged on both sides of the sample strip 17, so that the sample strip 17 can be conveniently taken and placed; a plurality of cleaning comb teeth 20 are fixedly arranged on both the front side and the back side of the sample strip 17, and bristles of the wool brush 13 can be combed and cleaned when the wool brush 13 passes through the surfaces of the cleaning comb teeth 20; the brush hair of the wool brush 13 is in contact with the surface of the sample strip 17, and the wool brush 13 cleans the pins; the top of the top plate 3 is fixedly provided with a wire storage box 25, the interior of the wire storage box 25 is rotatably connected with a rotating shaft 2501, the surface of the rotating shaft 2501 is fixedly connected with a reel 2502, the first connecting wire 21 is wound on the surface of the reel 2502, the joint of the first connecting wire 21 and the second connecting wire 26 is fixedly connected with the surface of the reel 2502, the first connecting wire 21 penetrates through a through hole formed in one side of the wire storage box 25, the surface of the rotating shaft 2501 is sleeved with a torsion spring 2503, two ends of the torsion spring 2503 are fixedly connected with the inner wall of the bottom of the wire storage box 25 and the bottom of the reel 2502 respectively, and when the contact head 22 moves, the first connecting wire 21 can be stored and released in the wire storage; the bottom plate 1 and the top plate 3 are both perpendicular to the support rods 2, the number of the support rods 2 is multiple, the support rods 2 are uniformly distributed on two sides of the top of the bottom plate 1, and the support rods 2 are used for connecting the bottom plate 1 and the top plate 3; the tail end of the contact head 22 is of a conical structure, the contact head 22 is connected in a sliding mode along the length direction of the concave hole, and the contact head 22 can be in contact with a pin of the crystal oscillator body 19 for measurement; the surface of the first connecting line 21 is sleeved with a limit ring 24, the limit ring 24 is fixedly connected with the side wall of the support rod 2, and the limit ring 24 provides limit for the first connecting line 21.

When the electric appliance elements are used, the electric appliance elements are externally connected with a power supply, the servo motor 6 and the electric push rod 14 are externally connected with a control switch, a plurality of sample strips 17 in the device are prepared, one worker is responsible for placing the crystal oscillator body 19 on the sample strips 17, and the one worker installs the sample strips 17 on the clamping structure and is responsible for recording data; the output interface 30 in the device is connected with external equipment; when the sample strip 17 is installed, the sample strip 17 is manually lifted through the handle 38, the rubber block 18 of the sample strip 17 is positioned between the pressing blocks 16, the two electric push rods 14 are contracted, after the two electric push rods 14 are completely contracted, the pressing blocks 16 clamp the rubber block 18 to clamp the sample strip 17, and the front side and the back side of the sample strip 17 are in contact with the contact head 22; when measurement is carried out, the servo motor 6 drives the screw rod 7 to rotate, the ball nut 8 is driven to move along the length direction of the screw rod 7 through the guide of the guide rail 5 and the sliding block 9, the contact head 22 and the wool brush 13 are driven to synchronously move through the connecting strip 10 and the U-shaped strip 11, before the contact head 22 is contacted with the pins of the crystal oscillator body 19, the pins are brushed through the wool brush 13 to remove dust, after the contact head 22 is contacted with the pins of the crystal oscillator body 19, a loop is formed through the first connecting wire 21 and the second connecting wire 26 and the circuit board 2701 to form an electric signal, the electric signal is transmitted to the arbitrary waveform generator 28 and the digital display power meter 32 after passing through the high-frequency non-inductive adjustable resistor 31 and then enters the digital oscilloscope 29, the measured value is displayed through the digital display power meter 32 and the digital oscilloscope 29, a worker carries out manual recording, and the data is processed through the, the measured crystal oscillator is conveyed to external equipment through an output interface 30 for storage, and after measurement, the servo motor 6 continues to drive the screw 7 to rotate, and the unmeasured crystal oscillator body 19 continues to be measured;

the fans 33 and the exhaust fans 35 on the two sides of the fixed box 27 generate air flow, the generated air flow blows the inside of the fixed box 27, heat generated in the fixed box 27 is exhausted along with the air flow, meanwhile, moisture in the outside air can be effectively prevented from entering through the drying agent layer 3401, and internal elements of the fixed box 27 can be protected.

The servo motor 6 is an ECMA-E21310RS type servo motor sold by Asahi Kasei corporation of Ali Baba Shanghai and its associated power supply and circuit.

The electric push rod 14 is a JJ-TGB model electric push rod sold by the Buddha city of Alibap mountain and relevant matched power supply and circuit thereof.

The contact 22 is made of copper metal.

The arbitrary waveform generator 28 is an ESD-202AX type pulse signal generator sold by mass-liter instruments ltd, of eastern aluba, and its associated power supply and circuitry.

The digital oscilloscope 29 is a digital oscilloscope of model MDO4054C sold by Alibarotec science and technology, China, Inc. and its associated power supply and circuitry.

The output interface 30 adopts a USB TYPE-C male side riveting output interface sold by Guanjiu science and technology Limited of Alieba Shenzhen, and a related matched power supply and circuit thereof.

The high-frequency non-inductive adjustable resistor 31 is a 3362P adjustable resistor sold by Haidedelae electronics, Inc. of Ali Barbara Shenzhen, and a related matched power supply and circuit thereof.

The digital display power meter 32 adopts a model 66205 digital display power meter and related matched power supply and circuit thereof sold by electronics ltd in the city of the Aliiba Shenzhen.

Both the fan 33 and the exhaust fan 35 are designed as model JF-D38 fans sold by jiafeng ventilation equipment limited of eastern skimmia, ali baba, and their associated power supplies and circuits.

The desiccant layer 3401 is formed by sprinkling silica gel desiccant on the surface of the first filter screen 34, and is bonded by glue solution, and gaps are kept among silica gel desiccant particles to avoid blocking meshes on the first filter screen 34.

The singlechip 37 adopts an STM32F103CBT6 model singlechip sold by Dongyu electronic technology Limited in Ali Barbara Shenzhen, and a related matched power supply and circuit thereof.

It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An apparatus for measuring a crystal oscillator element DLD, comprising: the device comprises a bottom plate (1), a sample strip (17), a first connecting line (21), a second connecting line (26), a horizontal driving structure and a clamping structure, wherein the bottom plate (1) is fixedly connected with a top plate (3) through a supporting rod (2);

the horizontal driving structure comprises an open shell (4) and a sliding block (9), wherein the open shell is fixedly installed at the top of a bottom plate (1), a guide rail (5) is installed at the bottom of the open shell (4) in an embedded mode, the guide rail (5) is connected with the sliding block (9) in a sliding mode, a screw rod (7) is connected to the inner side wall of the open shell (4) in a rotating mode, a ball nut (8) is connected to the surface of the screw rod (7) in a threaded mode, the bottom of the ball nut (8) is fixedly connected with the top of the sliding block (9), a servo motor (6) is fixedly installed on the outer wall of one side of the open shell (4), an output shaft of the servo motor (6) is fixedly connected with one end of the screw rod (7), a U-shaped strip (11) is fixedly connected to the top of the ball nut (8) through a connecting strip, the inner side of the top of the U-shaped strip (11) is provided with a concave hole, the inside of the concave hole is elastically connected with two contact heads (22) through a spring (23), the number of the contact heads (22) is two, the two contact heads (22) are respectively contacted with the front side and the back side of the sample strip (17), the first connecting line (21) and the second connecting line (26) are respectively composed of a plastic rubber sleeve (2101) and two leads (2102), the plastic rubber sleeve (2101) is wrapped on the surfaces of the two leads (2102), and one end of the lead (2102) in the first connecting line (21) is welded with the surface of the contact head (22);

the clamping structure comprises electric push rods (14) fixedly mounted at the bottom of the top plate (3) and pressing blocks (16) arranged at two sides of the sample strip (17), the number of the electric push rods (14) is two, the two electric push rods (14) are symmetrically arranged, the output end of each electric push rod (14) is fixedly connected with a connecting rod (15), and the tail end of each connecting rod (15) is fixedly connected with one side of each pressing block (16);

a plurality of rubber blocks (18) which are distributed at equal intervals are fixedly arranged at the top of the sample strip (17), and a crystal oscillator body (19) is arranged between every two adjacent rubber blocks (18);

a fixed box (27) is fixedly arranged at the top of the top plate (3), a circuit board (2701) is fixedly arranged in the fixed box (27), the front surface of the fixed box (27) is embedded and provided with an arbitrary waveform generator (28), a digital oscilloscope (29), an output interface (30), a high-frequency non-inductive adjustable resistor (31) and a digital display power meter (32), the digital display power meter (32) and the output interface (30) are electrically connected with a singlechip (37) which is embedded and installed on the surface of the circuit board (2701), the digital oscilloscope (29) is electrically connected with the singlechip (37) through the arbitrary waveform generator (28), the high-frequency noninductive adjustable resistor (31) is embedded and installed on the surface of the circuit board (2701), the end of the first connecting line (21) is connected with one end of a second connecting line (26), the tail end of the second connecting wire (26) is welded with the surface of the circuit board (2701);

opening part difference fixed mounting of the both sides of fixed case (27) has fan (33) and air discharge fan (35), fixed case (27) one side fixed mounting is kept away from in fan (33) has first filter screen (34), fixed case (27) one side fixed mounting is kept away from in air discharge fan (35) has second filter screen (36), desiccant layer (3401) is laid on first filter screen (34) surface.

2. The apparatus according to claim 1, wherein: connecting rod (15) are U type structure, and connecting rod (15) figure is two, two connecting rod (15) are located sample strip (17) top both sides respectively.

3. The apparatus according to claim 1, wherein: guide rail (5), screw rod (7) and sample strip (17) all lie in same vertical plane, and guide rail (5) and screw rod (7) all with sample strip (17) parallel arrangement.

4. The apparatus according to claim 1, wherein: and handles (38) are fixedly arranged on two sides of the sample strip (17).

5. The apparatus according to claim 1, wherein: and a plurality of cleaning comb teeth (20) are fixedly arranged on one side of the front surface and one side of the back surface of the sample strip (17).

6. The apparatus according to claim 1, wherein: the brush hair of the goat hair brush (13) is contacted with the surface of the sample strip (17).

7. The apparatus according to claim 1, wherein: the top fixed mounting of roof (3) has and deposits line box (25), it is connected with pivot (2501) to deposit line box (25) inside rotation, pivot (2501) surface rigid coupling has reel (2502), first connecting wire (21) are around reel (2502) surface, and the junction and reel (2502) surface rigid coupling of first connecting wire (21) and second connecting wire (26), first connecting wire (21) run through and set up the through-hole in depositing line box (25) one side, torsional spring (2503) have been cup jointed on pivot (2501) surface, and torsional spring (2503) both ends respectively with deposit line box (25) bottom inner wall and reel (2502) bottom rigid coupling.

8. The apparatus according to claim 1, wherein: bottom plate (1) and roof (3) all set up with bracing piece (2) perpendicular, and bracing piece (2) figure is a plurality of, a plurality of bracing piece (2) evenly distributed is in bottom plate (1) top both sides.

9. The apparatus according to claim 1, wherein: the tail end of the contact head (22) is of a conical structure, and the contact head (22) is connected in a sliding mode along the length direction of the concave hole.

10. The apparatus according to claim 1, wherein: the surface of the first connecting wire (21) is sleeved with a limiting ring (24), and the limiting ring (24) is fixedly connected with the side wall of the supporting rod (2).