JP2732651B2 - Test material sampling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a test material sampling apparatus for cutting a test material from a highly radioactive part housed in a water tank, and particularly to a cutting powder for cutting operation. The present invention relates to an apparatus for collecting a test material which is free from contamination, does not pollute water, is easy to operate, and has low work exposure.

(Prior Art) Equipment materials installed in a reactor core are taken out and disposed of after being used for a predetermined period. At this time, it is common practice to cut out a part of the material to obtain a test material, to use the test material for various analyzes, and to reflect the material in the guidelines for material design thereafter.

By the way, waste materials or replacement materials that have been used for a long time in the reactor core are aged, and some of them are hardened hard or the radiation dose is significantly increased. Can not be transported, usually in a cask lined with shielding lead. The specimen is collected by cutting it in pool water to protect workers from radiation before storing the members in the cask.

Conventionally, a sampling device for obtaining this type of test material is disclosed in Japanese Patent Publication No. 63-22553. This sampling device is composed of a rotary cutting blade as a cutting tool, means for changing the direction of the rotary cutting blade by remote control, and a pneumatic motor or the like for rotating the rotary cutting blade. Is fixed, and the member is cut by a rotary cutting blade to obtain a test material. The shape of the test material is adjusted by changing the direction of the rotary cutting blade by remote control.

(Problems to be Solved by the Invention) However, in the conventional sampling device, since a rotary cutting blade is used as a cutting tool, there is a disadvantage that a large amount of cuttings are generated during a cutting operation and the pool water is contaminated. These chips are widely dispersed in the pool and are difficult to collect completely.

In addition, the rotary cutting blade is fragile, and it is necessary to pay close attention to the holding and feeding speed of the blade during use, and it is necessary for a sufficiently skilled worker to perform the operation. If the adjustment is incorrect, the rotating cutting blade will be broken or chipped, increasing the number of highly irradiated goods that are difficult to collect at the bottom of the pool, which is a problem in reducing radiation exposure.

The present invention has been made in order to solve the above-mentioned problems, and when performing cutting work of a test material in pool water, there is no generation of cutting chips, the pool water is less contaminated, and cutting is performed. It is an object of the present invention to provide a test material sampling device that is easy to operate and can reduce work exposure.

[Configuration of the invention]

(Means for Solving the Problems) In order to achieve the above object, a test material sampling apparatus according to the present invention converts a rectangular test material from a radioactive component submerged in a radiation shielding water tank. A remotely operable specimen sampling device used for cutting, comprising: an upper pressing blade that presses against a part to form a cut in a lateral direction of the part; and a cutting edge that is displaced by 90 degrees from the cutting edge of the upper pressing blade. A lower push blade that presses against the part to form a cut in the longitudinal direction of the component, an upper push blade drive mechanism that drives the upper push blade to move forward and backward in the component direction, and a lower push blade that moves forward and backward in the component direction A lower pressing blade driving mechanism that drives the upper pressing blade driving mechanism in the vertical direction, and a lower pressing blade moving device that moves the lower pressing blade driving mechanism in the horizontal direction. Features.

(Operation) According to the test material sampling apparatus according to the above configuration, first, the lower push blade driving mechanism is driven to drive the lower push blade in the component direction, thereby forming one cut in the longitudinal direction of the component. Next, the lower pressing blade moving device is driven to move the lower pressing blade driving mechanism in the horizontal direction by a predetermined amount, and then the lower pressing blade is driven again in the component direction, so that one more cut is formed in the vertical direction.

That is, the above operation forms two cuts parallel to the vertical direction.

Next, the upper pressing blade driving mechanism is driven, and the upper pressing blade is driven in the component direction, thereby forming one cut in the lateral direction of the component. This cut is formed so as to connect the ends of two cuts parallel to the longitudinal direction already formed. Then, the upper pressing blade moving device is driven to move the upper pressing blade driving mechanism in the vertical direction by a remote operation by a predetermined amount.
Form strip breaks. The part is punched out by a total of four cuts, two by two, so that the rectangular test material is cut off on the lower pressing blade. The cut test material is appropriately lifted using a gripper or the like and stored in a predetermined bucket.

According to the test material sampling apparatus according to the above configuration, since a pair of upper pressing blade and lower pressing blade are used without using a rotary cutting blade as a cutting tool, cutting powder is less generated at the time of cutting. Less polluting the pool water.

In addition, since the upper pressing blade and the lower pressing blade are provided even when the cutting edges are displaced by 90 degrees with respect to each other, each pressing blade is moved in the vertical and horizontal directions with respect to the component, and pressed against the component before and after the movement. Can form a rectangular cut. Therefore, a rectangular specimen can be easily punched without changing the direction of the pressing blade, and the sampling operation can be greatly simplified.

Furthermore, the upper and lower pressing blades are more robust than the rotary cutting blades, so there is less risk of breakage during cutting, and there is less generation of radioactive pressing blade pieces at the bottom of the pool, which is extremely effective in reducing work exposure. .

(Example) Next, an example of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view showing one embodiment of a test material sampling apparatus according to the present invention.

That is, the test material sampling apparatus according to the present embodiment is an example in which a test material is cut out from a fuel channel as a component, and the fuel channel as a radioactive component submerged in a radiation shielding water tank is shown. 1. A remotely operable specimen sampling device used to cut a rectangular specimen from 1, comprising: an upper pressing blade 2 for pressing a component to form a cut in a lateral direction of the component; A lower pressing blade 3 having a cutting edge displaced by 90 degrees from the cutting edge 2 and pressing the component to form a cut in the longitudinal direction of the component; and an upper pressing blade drive for driving the upper pressing blade 2 to be able to advance and retreat in the component direction. A mechanism 4, a lower push blade drive mechanism 5 that drives the lower push blade 3 to be able to advance and retreat in the component direction, an upper push blade moving device 6 that moves the upper push blade drive mechanism 4 in the vertical direction,
A lower push blade moving device 7 that moves the lower push blade drive mechanism 5 in the lateral direction is provided.

The test material sampling apparatus according to the present embodiment is shown here as an example used to cut a test material from a rectangular tubular fuel channel 1 which is an exterior material of a vertically long fuel assembly. The channel 1 is made of a relatively thin plate made of a metal material such as a zirconium alloy.

As shown in FIGS. 1 to 3, the test material sampling apparatus is configured on a box-shaped base plate 8 placed on the bottom of the pool. Mounts 9 are arranged on the base plate 8 at intervals.
A bearing stand 11 that rotatably supports the roller 10 is disposed on the upper surface. On the roller 10, a pedestal 12 on which the fuel channel 1 as a component is mounted is straddled. Pedestal 12 is roller 10
Is configured to be movable in the direction in which is disposed. On both sides of the pedestal 12, a plurality of clamps 13 for sandwiching and fixing the fuel channel 1
Are provided, and a stud 14 for fastening the clamp 13 is provided on the upper part. As shown in FIG. 1, the stud 14 is configured such that an operator on the deck 17 can operate and remove a pole 16 having a socket 15 fixed to the tip thereof.

The upper push blade 2 and the upper push blade driving mechanism 4 are configured as shown in FIG. 4, for example. That is, the casing 18
The upper push blade 2 is fixed to the lower end of the drive shaft 20 of the piston 19 which is arranged to be able to move up and down. An upper plug seat 21 is fitted to the lower end of the casing 18, and the enlarged diameter portion of the drive shaft 20 penetrating the upper plug seat 21 contacts the upper and lower surfaces of the upper plug seat 21, thereby restricting the driving range of the upper push blade 2. Is done.

A prismatic shaft 22 is fixed to the upper part of the piston 19, and the prismatic shaft 22 restrains the rotation of the upper pressing blade 2 by being fitted into a square hole provided on the upper surface of the casing 18 so as to be able to move up and down.
Further, high-pressure water supply / discharge ports P ₇ and P ₆ for supplying or discharging high-pressure water to the upper space and the lower space of the piston 19 are provided in the casing 18, respectively. The sliding portion between the piston 19 and the inner surface of the casing 18, the fitting surface between the upper plug seat 21 and the casing 18, and the sliding portion between the upper plug seat 21 and the drive shaft 20 prevent leakage of high-pressure water. O-rings S ₁ , S ₂ and S ₃ are provided respectively.

Another piston 23 is disposed at one end of the casing 18 so as to be able to move up and down, and is fixed to the piston 23 integrally.
At the lower end of the drive shaft 24 that has penetrated the lower push blade 3
The upper seat plate 25 for receiving is mounted by screw connection.
The upper surface of the casing 18 of the piston 23 and the plug 26 is engaged, a high pressure water supply and discharge port P ₅ for supplying and discharging a high-pressure water on the upper face side space of the piston 23 is provided in the plug 26. The respective O- ring S _4, S ₅ in order to prevent high pressure water from leaking from the sliding portion between the piston 23 and the driving shaft 24 and the casing 18 is interposed.

The upper push blade driving mechanism 4 configured as described above is supported by a rod 27 protruding from the other end of the casing 18, and a rectangular flange is fixed to the upper end of the rod 27. Insert the wire 28 through the hole protruding from this flange,
The upper push blade drive mechanism 4 is suspended by 28.

The upper push blade driving mechanism 4 is connected at its upper end to an upper push blade moving device 6, which will be described later, so that the entire upper push blade driving mechanism 4 can move with respect to the components by driving the upper push blade moving device 6. Is configured.

Next, the configurations of the lower pressing blade 3 and the lower pressing blade driving mechanism 5 will be described with reference to FIG.

That is, the lower push blade driving mechanism 5 has a piston 30 which is disposed within the main body casing 29 so as to be able to move up and down.
The lower push blade 3 is attached to the upper end of the drive shaft 31 integrally fixed to the upper part of the drive shaft 31. Here, the cutting edge of the lower pressing blade 3 is provided at a position displaced by 90 degrees from the direction of the cutting edge of the upper pressing blade 2 described above. A lower plug seat 32 for guiding the driving direction of the lower push blade 3 is fitted to an upper portion of the main casing 29, and the drive shaft 31 is provided through the lower plug seat 32. The drive range of the lower push blade 3 is regulated by the enlarged diameter portion of the drive shaft 31 contacting the upper surface of the opening of the lower plug seat 32. A prism shaft 33 is integrally fixed to a lower portion of the piston 30. The prism shaft 33 is fitted in a square hole provided in a lower portion of the main body casing 29 so as to be able to move up and down, so that the cutting edge of the lower pressing blade 3 is formed. It is configured so that the direction does not change.

A lower seat plate 34 that receives the pressing force of the upper pressing blade 2 described above is fitted on the upper portion of the lower plug seat 32. At the center of the lower seat plate 34, an opening 35 is provided to avoid interference due to the advance / retreat operation of the lower push blade 3. The width of the lower seat plate 34 is set to be at least larger than the width of the test material.

Further, high-pressure water supply / discharge ports P ₃ and P ₄ for supplying / discharging high-pressure water to the upper and lower side space of the piston 30 are provided, respectively.
The sliding portion between the drive shaft 31 and the lower plug seat 32, the fitting portion between the lower plug seat 32 and the main casing 29, and the sliding portion between the main casing 29 and the piston 30 prevent leakage of high-pressure water. O-rings S ₆ , S ₇ , and S ₈ are provided respectively.

A wheel 36 is supported at the lower end of the main casing 29,
Further, the tip of the drive shaft 37 of the lower pressing blade moving device 7 described later is integrally fixed by welding or the like. Then, the lower pressing drive mechanism 5 is entirely moved in the lateral direction with respect to the component by the advance / retreat operation of the drive shaft 37.

Next, the configuration of the lower pressing blade moving device 7 will be described with reference to FIG.

That is, the lower pressing blade moving device 7 has a hydraulic cylinder 39 horizontally fixed on a gantry 38 protruding from the base plate 8, and the piston 40 is movably accommodated in the hydraulic cylinder 39. . A drive shaft 37 is fixed to the piston 40, and the drive shaft 37 is slidably supported above the gantry 38 via a sleeve 42. The lower push blade drive mechanism 5 described above is integrally joined to the output end of the drive shaft 37 by welding or the like. A closing cover 43 is attached to the left opening of the hydraulic cylinder 39 by screwing. The closing lid 43 has a high-pressure water supply / discharge port P ₁ for supplying / discharging high-pressure water to / from the left space of the piston 40.
Is provided, also high-pressure water supply and discharge port P ₂ for supplying and discharging high pressure water to the right space of the piston 40 is disposed on the right side of the hydraulic cylinder 39. And the junction between the closing lid 43 and the hydraulic cylinder 39,
O-rings S ₆ , S ₇ , S ₇ for preventing leakage of high-pressure water are provided on the sliding portion between the piston 40 and the inner wall of the hydraulic cylinder 39 and the sliding portion between the inner wall of the hydraulic cylinder 39 and the drive shaft 37. ₈ are interposed respectively.

By supplying and discharging high-pressure water from the high-pressure water supply / discharge ports P ₁ and P ₂ , the piston 40 and the drive shaft 37 advance and retreat in the horizontal direction, and the entire lower push blade drive mechanism 5 moves laterally with respect to the component. It is composed of

Next, the configuration of the upper pushing blade moving device 6 and the supply system of high-pressure water will be described with reference to FIG.

First, the upper push blade moving device 6 is configured by joining a feed screw 45 to a support bar 44 fixed to an upper end portion of a rod 27 that suspends the upper push blade drive mechanism 4. The feed screw 45 is supported by a fixing bracket 46 provided on the operation floor. An adjusting nut 47 is screwed into the feed screw 45, and by rotating the adjusting nut 47, the support bar 44 integrally moves forward and backward to move the suspended upper push blade drive mechanism 4 in a predetermined direction. It is configured to be able to move to.

The upper push blade driving mechanism 4 includes a rod 27 and a wire 28.
It is configured to be able to move also by an electric hoist 48 suspended via the.

Then supply system of the high-pressure water, a water tank 49 provided on the operation floor, and Kyusuru hydraulic pump 50 feeding the water under pressure the high pressure water supply and discharge ports P ₁ to P ₇ in the water tank 49, high pressure A pressure gauge 51 for measuring the pressure on the water discharge side, a service air source 52 for supplying air for driving the water pressure pump 50, a pressure gauge 53 for measuring the pressure of the air, and an adjustment for adjusting the flow rate of the air. It comprises a valve 54 and an adjustment valve 55 for adjusting the amount of high-pressure water discharged from the water pressure pump 50 to return to the water tank 49. Non-return joints 56a and 56b for preventing high-pressure water from flowing backward are interposed in the high-pressure water discharge pipe and the return pipe to the water tank 49, respectively.

The high-pressure water discharged from the hydraulic pump 50 is connected to the high pressure water supply and discharge ports P ₁ to P ₇ provided in the drive device. Although not shown, in the case of discharging the high-pressure water from the high-pressure water supply and discharge ports P ₁ to P _7, switching valve for switching a pipe high-pressure water to the return pipe to the water tank 49 is interposed the pipes I have.

Next, an operation of collecting a test material from a component using the test material collecting apparatus according to the present embodiment will be described.

First, the fuel channel 1 as a part is placed on the pedestal 12 as shown in FIG. 3, and the clamps 13 are locked from both sides and fastened and fixed with the studs 14. As shown in FIG. 1, the studs 14 are fastened to the sockets 15 of the poles 16 from above the deck 17.
Is carried out.

Next, the lower pressing blade drive mechanism 5 is moved to a position where a sample is taken. This moving operation is made by a predetermined amount supplying high-pressure water to a high pressure water supply and discharge port P ₁ of the lower pressing blades moving device 7 shown in Figure 6.

On the other hand, the lower push blade 3 of the lower push blade drive mechanism 5 shown in FIG.
Then, the upper pressing blade driving mechanism 4 is moved so that the upper seat plate 25 faces. This moving operation is performed by moving the electric hoist 48 which suspends the upper push blade driving mechanism 4 shown in FIG. After the moving operation is completed, the upper push blade moving device 6 is fixed at a fixed position.

Next, high-pressure water is supplied to the high-pressure water supply / discharge port ₅ of the upper pressing blade drive mechanism 4 shown in FIG. 4, and the upper seat plate 25 is pressed and fixed to the lower seat plate 34 while sandwiching the fuel channel. Supplying high pressure water to a high pressure water supply and discharge port P ₄ shown in FIG. 5 in this state, driving the lower pressing blade 3 upward.

Consequently break L ₁ of Article 1 in the vertical direction is formed in the fuel channel 1 wall as components, as shown in FIG. 8. Then switched by remote control so as to supply high pressure water to a high pressure water supply and discharge port P _3, allowed to lower the lower pressing blades 3.

Then further by supplying high-pressure water to a high pressure water supply and discharge port P ₁ shown in Figure 6 to move the drive shaft 37 in the lateral direction. Then, the lower pressing blade 3 is driven again in the fuel channel direction. This driving operation, cuts L ₁ parallel to longitudinal cuts L ₂ so that the fuel channel wall shown in FIG. 8 is cut is formed.
The completion of the cutting can be known from the deflection of the pointer of the pressure gauge 51 for detecting the discharge pressure of the high-pressure water attached to the water tank 49. Lower pressing blades 3 After forming a cut L ₂ is moved down again.

Next, the adjustment nut 47 screwed to the feed screw 45 of the upper push blade moving device 6 shown in FIG.
Is adjusted so that the upper pressing blade 2 faces the cuts L ₁ and L ₂ . This position is set so as to connect the ends of _two parallel cut lines L ₁ and L ₂ already formed.

When the position setting is completed, the upper seat plate 25 is pressed again to the fuel channel 1 side, and the fuel channel wall is gripped and fixed by the lower seat plate 34 and the upper seat plate 25.

Next, remotely operated to supply high pressure water to a high pressure water supply and discharge port P ₇ of the upper pressing blade driving mechanism 4 shown in Figure 4, to drive the upper pressing blade 2 to the fuel channel 1 direction. This driving operation, the fuel channel 1, as shown in FIG. 8 is cut in the transverse direction cuts L ₃ are formed. After completion of the formation of cuts L _3, and supplies high pressure water to a high pressure water supply and discharge port P ₆ upper pressing blade 2
Is retracted upward. The high pressure water supply and discharge port P ₅ is connected to the return line side of the water tank 49 in advance to release the pressure at the head plate 25.

Next, the adjusting nut 47 of the upper pressing blade moving device 6 is rotated to move the upper pressing blade driving mechanism 4 in the vertical direction by a predetermined length. This predetermined length corresponds to the vertical dimension of the test material 57 shown in FIG.

Then Theravada plate 25 by supplying high-pressure water to a high pressure water supply and discharge port P ₅
The after fixing the fuel channel 1 is pressed against the fuel channel 1 direction and allowed drives the upper pressing blade 2 by supplying high-pressure water to a high pressure water supply and discharge port P ₇ again.

Fuel channel 1 as shown in FIG. 8 by the driving operation forms a cut L ₄ in the transverse direction is cut.

As described above, since the lower pressing blade 3 and the upper pressing blade 2 are mounted so that their cutting edges are displaced by 90 degrees from each other, a total of four cuts L ₁ are obtained by performing two cutting operations before and after the movement. ~L ₄ is formed. Therefore, the rectangular test material 57 can be cut out.

Sample material 57 when the slit L ₄ is formed is stamped from the fuel channel 1, it is cut off on the lower seat plate 34 of the lower pressing blade driving mechanism 5. Then, the cut test material 57 is lifted using a gripper (not shown), and stored and recovered in a predetermined bucket.

As described above, according to the present embodiment, since the rigid upper pressing blade 2 and lower pressing blade 3 are used without using the rotating cutting blade as a cutting tool, chips are less likely to be generated during cutting. Less polluting the pool water.

Further, since the upper and lower pressing blades 2, 3 are provided so that the cutting edge lines are displaced by 90 degrees from each other, the pressing blades 2, 3 are moved in the vertical and horizontal directions with respect to the fuel channel 1, respectively. only to press the fuel channel two each time it is possible to form a cut L ₁ ~L ₄ of Article 4 of the rectangle. Therefore, a complicated operation of changing the direction of the rotary cutting blade as in the related art becomes unnecessary, and the rectangular test material 57 can be easily punched out, and the sampling operation can be greatly simplified.

Furthermore, the upper and lower pressing blades 2 and 3 are more robust than conventional rotary cutting blades, and there is less risk of breakage or the like in the cutting line, and there is less generation of radioactive pressing blade pieces at the bottom of the pool due to breakage. It is extremely effective in reducing the dose.

In addition, since high-pressure water is used as a driving force source for devices such as the lower pressing blade driving mechanism 5 that is driven in the pool water, there is no risk of contaminating the pool water even if high-pressure water leaks.

In the present embodiment, the fuel channel is described as an example of a part for collecting the test material, but the application is not limited to the fuel channel, and can be applied to various structures.

Further, in the present embodiment, the upper pressing blade and the lower pressing blade are provided so that the blade edges face each other, but they may be arranged in parallel.

〔The invention's effect〕

As described above, according to the test material sampling apparatus according to the present invention, since a pair of upper pressing blades and lower pressing blades are used without using a rotary cutting blade as a cutting tool, chips are generated during cutting. Less polluting the pool water.

Also, since the upper pressing blade and the lower pressing blade are provided so that the cutting edges are displaced by 90 degrees from each other, each pressing blade is moved in the vertical and horizontal directions with respect to the component, and by pressing the component before and after the movement. Rectangular cuts can be formed. Therefore, a rectangular specimen can be easily punched out without changing the direction of the pressing blade, and the work of collecting the specimen can be greatly simplified.

Further, the upper and lower pressing blades are more robust than the rotary cutting blades, are less likely to be broken at the time of cutting, and generate less radioactive pressing blade pieces at the bottom of the pool, which is extremely effective in reducing exposure.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a specimen collecting apparatus according to the present invention, FIG. 2 is a side view, and FIG. 3 is III in FIG.
FIG. 4 is a cross-sectional view illustrating the configuration of the upper pressing blade driving mechanism, FIG. 5 is a cross-sectional view illustrating the configuration of the lower pressing blade driving mechanism, and FIG. FIG. 7 is a cross-sectional view showing the structure of the upper pressing blade moving device and the high-pressure water supply system, and FIG. 8 is a plan view showing a state in which the fuel channel wall is cut into a rectangle. DESCRIPTION OF SYMBOLS 1 ... Fuel channel 2, ... Upper press blade, 3 ... Lower press blade, 4 ... Upper press blade drive mechanism, 5 ... Lower press blade drive mechanism, 6 ... Upper press blade moving device, 7 ... Lower push blade moving device, 8: Base plate, 9: Stand, 10: Roller, 11 ...
Bearing stand, 12 ... Pedestal, 13 ... Clamp, 14 ... Stud, 15 ... Socket, 16 ... Pole, 17 ... Deck, 18
... casing, 19 ... piston, 20 ... drive shaft, 21 ...
… Top plug seat, 22… Pillar shaft, 23… Piston, 24… Drive shaft, 25… Top seat plate, 26… Plug, 27… Rod, 28…
... wire, 29 ... body casing, 30 ... piston, 31
…… Drive shaft, 32 …… Bottom plug seat, 33 …… Pillar shaft, 34 …… Bottom seat plate, 35 …… Opening, 36 …… Wheels, 37 …… Drive shaft, 38 …… Stand, 39 …… Hydraulic pressure Cylinder, 40 ... Piston, 42 ... Sleeve, 43 ... Closed lid, 44 ... Support bar, 45 ... Feed screw, 46 ... Fixing bracket, 47 ... Adjustment nut, 48 ... Electric hoist, 49 ... … Water tank, 50… hydraulic pump, 51… pressure gauge, 52… service air source, 53… pressure gauge, 54… control valve, 55… control valve, 56a, 56b… non-return joint, 57…
… Test material, P ₁ , P ₂ , P ₃ , P ₄ , P ₅ , P ₆ , P ₇ …… High-pressure water supply / discharge port, S ₁ , S ₂ , S ₃ , S ₄ , S ₅ , S ₆ , S ₇ , S ₈ …… O-ring, L ₁ , L ₂ , L
₃ , L ₄ …… a break.

Claims (1)

(57) [Claims] 1. A remotely operable specimen sampling apparatus used for cutting a rectangular specimen from a radioactive part submerged in a radiation shielding water tank, wherein the part is pressed against the part. An upper pressing blade that forms a cut in the horizontal direction of the component and a lower pressing blade that has a cutting edge displaced by 90 degrees from the cutting edge of the upper pressing blade and presses the component to form a cut in the vertical direction of the component, An upper push blade drive mechanism that drives the upper push blade to advance and retreat in the component direction, a lower push blade drive mechanism that drives the lower push blade to advance and retreat in the component direction, and an upper portion that moves the upper push blade drive mechanism in the vertical direction A specimen sampling device comprising: a pressing blade moving device; and a lower pressing blade moving device that moves a lower pressing blade driving mechanism in a lateral direction.