JP2017181451A - Moving type inspection machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moving type inspection machine that quickly and accurately mutes an alarm sound or reduces a sound volume when workers listen to the alarm sound.SOLUTION: A moving type inspection machine comprises: a main body C that is provided with an inspection unit A introducing air targeted for inspection on a ground surface g side to inspect the air, and an alarm sound generation unit B generating an alarm sound in accordance with an inspection result; a control unit that controls an operation of the main body C; and a handle 6 that moves and operates the main body C along the ground surface g. The moving type inspection machine is configured to allow an operation of the handle 6 to change a pose to a first pose in which the main body C causes the handle 6 to be located at a housing position on the ground surface g side in a prescribed inspection pose, a second pose in which the main body C causes the handle 6 to be located at a movement operation position upward further than the housing position in an inspection pose, and a third pose different from the first pose and the second pose. When the moving type inspection machine takes the third pose, the control unit is configured to execute alarm sound volume control of not generating an alarm sound from the alarm sound generation unit, or making a sound volume of the alarm sound smaller than a set sound volume.SELECTED DRAWING: Figure 4

Description

  The present invention includes an inspection machine main body including an inspection unit that introduces and inspects air to be inspected on the ground surface side, and an alarm sound generation unit that generates an alarm sound according to an inspection result in the inspection unit, The present invention relates to a mobile inspection machine provided with a control unit that controls the operation of the inspection machine main body and an operation handle that moves the inspection machine main body along a ground surface.

Conventionally known as this type of mobile inspection machine is a gas leakage inspection machine that inspects for gas leakage from gas conduits buried in the ground (see, for example, Patent Document 1).
Specifically, such a gas leak inspection machine is configured such that the position of the operation handle is set to the upper position in a state in which the posture of the inspection machine main body is set to the inspection posture in which the peripheral portion of the air collecting portion opened to the outside on the bottom side is in contact with the ground surface. The inspection is performed in the first posture located at the side movement operation position. During the inspection, if the operator pushes the operation handle to move the inspection machine body along the ground surface, the inspection target air on the ground surface side is introduced into the inspection unit and inspected, for example, flammable in the inspection target air In the case of an abnormal state such as when a specific component such as gas is present beyond the allowable range, an alarm sound is generated by the alarm sound generation unit.

  In addition, this gas leakage inspection machine has a hinge mechanism that allows the operation handle to swing up and down, and the position of the operation handle is stored on the ground surface side with the inspection machine body in the above-described inspection position. By lowering it to the position, it can be stored compactly.

Japanese Utility Model Publication No. 63-152546

In a conventional mobile inspection machine, once an alarm sound is generated, a relatively loud alarm sound is continuously generated until the operator operates the volume switch.
However, if the operation of the volume switch is complicated or it takes a long time to complete the operation of the volume switch, the operator may be sufficiently listening to the alarm sound. Regardless, the alarm may continue for longer than necessary. In particular, when the volume switch is placed on the inspection machine body on the ground surface side away from the operator's hand, the work is performed after the operator listens to the alarm sound and operates the volume switch. Since a person needs to move his / her body until he / she releases his / her hand from the operation handle and reaches the volume switch, a relatively long time is required. When the alarm sound is continued more than necessary, problems such as noise damage and an additional feeling of anxiety arise in neighboring residents.

  In view of this situation, a main problem of the present invention is to provide a technique for quickly and accurately muting or reducing the volume of an alarm sound when an operator hears the alarm sound in the mobile inspection machine. In the point.

The first characteristic configuration of the present invention includes an inspection unit that introduces and inspects air to be inspected on the ground surface side, and an inspection sound generation unit that generates an alarm sound according to the inspection result of the inspection unit. The machine body,
A control unit for controlling the operation of the inspection machine body;
An operation handle for moving the inspection machine main body along the ground surface, and a mobile inspection machine comprising:
A first posture in which the operation handle is positioned at a storage position on the ground surface side in a state where the inspection machine main body is in a predetermined inspection posture, and the operation handle is stored in a state in which the inspection machine main body is in the inspection posture. A posture that can be freely changed by operating the operation handle to a second posture positioned at a moving operation position above the position and a third posture different from the first posture and the second posture;
When the control unit is in the third posture, the control unit does not generate an alarm sound from the alarm sound generation unit, or performs alarm volume control to make the volume of the alarm sound smaller than a set volume.

  According to this configuration, a compact storage is possible with the first posture in which the operation handle is positioned at the storage position on the ground surface side while the inspection machine body is in the inspection posture. On the other hand, in the state in which the inspection machine body is in the inspection posture, the inspection handle becomes the second posture in which the operation handle is positioned at the moving operation position above the storage position, and the inspection unit inspects the air to be inspected on the ground surface side Is possible. And at the time of such an inspection, when an alarm sound is generated by the alarm generator, the alarm volume control is executed by changing the attitude from the second attitude to the third attitude, The generated alarm sound can be silenced or the volume can be reduced.

Thus, the third posture in which the alarm volume control is executed is different from the second posture at the time of storage and the second posture at the time of inspection. The posture can be freely changed by operating the operation handle with respect to two postures.
Thus, the posture change to the third posture can be easily performed by operating the operation handle while holding the operation handle at the time of inspection. When an alarm sound is generated by the alarm sound generation unit at the time of the inspection, the posture change to the third posture is performed quickly and accurately, the alarm volume control is executed, and the alarm sound is muted or reduced in volume. be able to.

  Therefore, according to the present invention, it is possible to provide a mobile inspection machine that can quickly and accurately mute or reduce the volume of an alarm sound when an operator listens to the alarm sound.

  The second characteristic configuration of the present invention is that the third posture is set to a posture in which the inspection machine body is in a non-inspection posture other than the inspection posture.

According to this configuration, at the time of inspection, the operator normally maintains the inspection machine main body in the inspection posture. Therefore, the third posture in which the inspection machine main body is in a non-inspection posture other than the inspection posture is the work Unless the person intends to do so, the posture becomes difficult during normal inspection.
Therefore, since the posture change to the third posture unintentionally at the time of the inspection is suppressed, it is possible to avoid the unnecessary execution of the alarm sound volume control.
In addition, since the non-inspection posture is a posture that can be clearly distinguished from the inspection posture, the alarm volume control is executed by changing the posture of the inspection machine body to the third posture that is the non-inspection posture. Is clearly recognizable. As a result, for example, the operator can clearly recognize that an alarm sound has been generated but the alarm sound is temporarily muted or volume-decreased by the alarm volume control, and the necessary action when the alarm sound is generated, etc. Can be carried out reliably.

According to a third characteristic configuration of the present invention, the inspection unit includes an air collection unit that is opened to the outside on the bottom surface side of the inspection machine body.
The inspection posture of the main body of the inspection machine is a posture in which a peripheral portion of the air collection unit is in contact with the ground surface,
The non-inspection posture of the inspection machine main body is that the peripheral portion of the air collection unit is a posture floating from the ground surface.

  According to this configuration, at the time of the inspection in the second posture, the posture of the inspection machine body is the inspection posture in which the peripheral portion of the air collection unit is in contact with the ground surface. Is appropriately introduced into the air collecting section. On the other hand, at the time of execution of the alarm sound volume control in the third posture, the posture of the inspection machine body is such that the surrounding portion of the air collecting portion is floated from the ground surface, and the inspection target air on the ground surface side is the air collecting portion. Thus, the non-inspection posture that is not properly introduced into the inspection posture is clearly distinguished from the inspection posture, and the state in which the alarm volume control is executed can be accurately recognized.

  In the fourth characteristic configuration of the present invention, the third posture includes a posture in which the inspection machine body is self-supporting in the non-inspection posture in which the peripheral portion of the air collection unit is lifted from the ground surface. There is in point.

  According to this configuration, when the alarm sound volume control is performed in the third posture, the inspection machine main body can stand by itself in the non-inspection posture in which the periphery of the air collection unit is lifted from the ground surface. it can. As a result, when executing the alarm volume control, the worker releases his / her hand from the operation handle in a state of being independent in the third posture, and smoothly performs the necessary response when the alarm sound is generated. be able to.

  A fifth characteristic configuration of the present invention is that the third posture is set to a posture in which a movement operation along a ground surface of the inspection machine main body is hindered.

  According to this configuration, at the time of inspection in the second posture, even when the posture is unconsciously changed to the third posture, the movement operation along the ground surface of the inspection machine body is hindered. The posture change can be grasped and corrected, and as a result, unnecessary execution of the alarm sound volume control can be avoided. Further, when the inspection is performed again after executing the alarm volume control in the third posture, the second posture is surely changed from the third posture to allow the moving operation along the ground surface of the inspection machine body. Therefore, the alarm volume control is surely terminated, so that the inspection with the alarm sound muted or the volume reduced can be prevented.

  According to a sixth characteristic configuration of the present invention, the third posture is set to a posture in which the operation handle is located on a side opposite to the storage position of the first posture with respect to the moving operation position of the second posture. It is in the point.

  According to this configuration, in the second posture at the time of inspection, when transitioning to the storage state, the operation handle at the transfer operation position is displaced to the storage position on the ground surface side and the posture is changed to the first posture. On the other hand, when alarm volume control is executed, the operation handle at the movement operation position is displaced to a position opposite to the storage position to change the posture to the third posture. That is, based on the second posture at the time of inspection, the posture change to the first posture for storage and the posture change to the third posture for execution of alarm sound volume control are performed by the respective operation handles. The moving directions are opposite to each other. Therefore, at the time of inspection, by operating the operation handle, it is possible to clearly distinguish between the transition to the storage state and the execution of the alarm sound volume control, and it is possible to prevent erroneous operation of the operation handle.

The seventh characteristic configuration of the present invention is provided with a display unit for displaying the inspection result of the inspection unit,
The control unit is configured to execute the alarm volume control while maintaining the inspection unit and the display unit in an operating state when the control unit assumes the third posture.

  According to this configuration, when the alarm sound is generated by the alarm sound generation unit at the time of inspection, the alarm sound volume control is executed by the attitude change to the third attitude, and the alarm sound is silenced or the sound volume is reduced. Even if it exists, the inspection unit and the display unit are maintained in the operating state, so the operator confirms the inspection result that caused the alarm sound displayed on the display unit and takes appropriate measures. Can be carried out reliably.

The perspective view which shows the state at the time of inspection of a mobile inspection machine Partial perspective view of the mobile inspection machine shown in FIG. Block diagram showing schematic configuration of mobile inspection machine The figure which shows the state of the 1st attitude | position (a), 2nd attitude | position (b), and 3rd attitude | position (c) of a mobile inspection machine.

Embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the mobile inspection machine 1 according to the present embodiment introduces inspection object air on the ground surface g side and inspects the inspection part A, and in accordance with the inspection result in the inspection part A. An inspection machine main body C provided with an alarm sound generating unit B for generating an alarm sound, a control unit 21 for controlling the operation of the inspection machine main body C, and an operation handle 6 for moving the inspection machine main body C along the ground surface. With. The mobile inspection machine 1 is moved and operated along the ground surface g in an inspection posture along the ground surface g with the air collecting portion 53 of the inspection unit A buried in the ground below the ground surface g. It is configured as a gas leak inspection machine for inspecting gas leakage from a gas conduit (not shown).

The inspection machine main body C includes a traveling frame 4 having traveling wheels 42 and 43 on the front and rear sides, and a main body box 2 incorporating the control unit 21 and other various auxiliary machines. The operation handle 6 is swingably connected to the travel frame 4 within a predetermined swing range by a hinge structure 32 (see FIG. 1) provided on the front side of the travel frame 4. The position can be changed between the storage position on the traveling frame 4 side (the ground surface g side) (see FIG. 4A) and the moving operation position above the storage position (see FIG. 4B). It has become.
Further, since the main body box 2 of the inspection machine main body C is fixed to the lower side of the operation handle 6, the main body box 2 can swing with respect to the traveling frame 4 together with the operation handle 6.

  Further, the operation handle 6 has a gripping portion 6a provided on the distal end side (the side opposite to the connection portion with the traveling frame 4) close to (see FIG. 4A) or separated from the main body box 2 (see FIG. 4). (B) Refer to (c)) and has a structure that can be expanded and contracted.

  As shown in FIG. 3, on the lower surface side of the traveling frame 4, there is a seal member 5 made of a rubber sheet material for forming an air collecting portion 53 that is opened to the outside on the bottom surface side of the inspection machine main body C. Is provided. The seal member 5 has a front end and a rear end fixed to the front and rear of the traveling frame 4 in a state where the center portion is bent downward. Further, a concave portion 52 that is recessed upward is formed on the lower surface side of the central portion of the seal member 5, and an internal space of the concave portion 52 is formed as an air collecting portion 53. In the state where the inspection machine main body C is in the inspection posture in which the traveling wheels 42 and 43 are grounded on the ground surface g, the peripheral portion 51 of the air collecting portion 53 of the seal member 5 is in contact with the ground surface g. Thus, the open portion of the air collecting portion 53 is covered with the ground surface g, and the air collecting portion 53 is substantially sealed with respect to the outside air.

Further, the recess 52 of the seal member 5 is formed with an introduction port 54 that faces the air collection unit 53, and the introduction port 54 and a gas sensor 22 described later are connected by a suction path 27. The suction path 27 is provided with a suction pump 23 that sucks the inspection target air collected by the air collection unit 53 through the suction path 27 and introduces it into the gas sensor 22.
With such a configuration, when the inspection machine main body C is set to the inspection posture in which the peripheral portion 51 of the air collecting unit 53 is in contact with the ground surface g, and the inspection machine main body C in the inspection posture is moved along the ground surface g, the air The air on the ground surface g side present in the collection unit 53 is sucked as the inspection target air, and the sucked inspection target air is introduced into the gas sensor 22.

The main body box 2 incorporates a gas sensor 22, a suction pump 23, and the like in addition to a control unit 21 composed of a computer. In addition, the main body box 2 is provided with a speaker 25 and the like that can output sound in a state in which a worker who holds and operates the operation handle 6 can listen. Further, on the upper end portion side of the main body box 2, a display unit 24 such as a liquid crystal display and the like and various switches for performing power ON / OFF, range switching, volume adjustment, etc. in a state that can be visually recognized by the operator. A class 26 is arranged.
And the control part 21 performs various arithmetic processing based on output signals, such as the gas sensor 22 and switches 26, etc., controls the display part 24 and the speaker 25 based on the calculation result, and displays desired information and audio | voice output. Is configured to do.

  The gas sensor 22 is configured to use a known sensor element that is sensitive to a combustible gas (hydrogen, methane, propane, etc.) as a specific component, and corresponds to the concentration of the specific component in the introduced air to be inspected. The signal is output to the control unit 21. Then, the control part 21 calculates | requires the combustible gas density | concentration in test object air from the output signal of the gas sensor 22, and displays it on the display part 24, and when the specific component density | concentration exceeds an allowable range, it will work. In order to notify the person, a predetermined alarm display is displayed on the display unit 24, and the speaker 25 is configured to generate a predetermined alarm sound as the alarm sound generating unit B.

  Further, the main body box 2 includes a tilt sensor 28 such as an acceleration sensor that detects the tilt of the main body box 2 and outputs an output signal corresponding to the tilt. The output signal of the tilt sensor 28 is controlled. Input to the unit 21. And the control part 21 is based on the output signal of the inclination sensor 28 in detail in addition to the operation control at the time of the test | inspection which generate | occur | produces an alarm sound based on the output signal of the gas sensors 22 mentioned above, Alarm volume control is performed so as not to generate an alarm sound from the speaker 25 or to make the volume of the alarm sound smaller than the set volume.

  Furthermore, the mobile inspection machine 1 is operated between the first posture at the time of storage, the second posture at the time of inspection, and a specific third posture different from those postures by the operation of the operation handle 6 by the operator. The posture can be changed. Hereinafter, each of the first posture, the second posture, and the third posture will be described based on FIG.

(First posture)
The first posture of the mobile inspection device 1 is a posture at the time of storage, and as shown in FIG. 4A, the inspection device main body C is a predetermined contact with the surrounding portion 51 of the air collecting portion 53 in contact with the ground surface g. In this state, the operation handle 6 is positioned at the storage position on the ground surface g side.
In the first posture, the main body box 2 comes close to the traveling frame 4. Further, the operating handle 6 is contracted so that the gripping portion 6a is brought close to the main body box 2, thereby enabling compact storage.
Further, in this first posture, the gripping portion 6a is gripped and lifted in a transported state (not shown) rotated until the rear traveling wheel 43 is positioned directly above the front traveling wheel 42. Can be transported. Further, a support portion 35 is provided on the front side of the main body box 2 so as to project at the same position as the front end portion of the front traveling wheel 42 in the front-rear direction. Thus, in the transporting state, the front traveling wheel 42 and the support portion 35 can be grounded on the ground surface g and can be self-supported, and space-saving storage is possible.

(2nd posture)
The second posture of the mobile inspection machine 1 is a posture at the time of inspection, and as shown in FIG. 4B, the inspection machine main body C is a predetermined contact with the surrounding part 51 of the air collecting part 53 in contact with the ground surface g. In this state, the operation handle 6 is positioned at the moving operation position above the storage position.
In this second posture, the operation handle 6 has a desired angle with respect to the ground surface g, and further, the operation handle 6 is extended so as to separate the grip portion 6a from the main body box 2. The operator performing the inspection can hold the holding portion 6a on the distal end side of the operation handle 6 with a comfortable standing posture and push and move the gas inspection machine 1. In such a moving operation, the surrounding portion 51 of the air collecting portion 53 is in a predetermined inspection posture in contact with the ground surface g, and the inspection target air on the ground surface g side is collected by the air collecting portion 53 in the inspection posture. Then, the air to be inspected is supplied to the gas sensor 22, and it is possible to inspect whether or not the combustible gas is contained in the air to be inspected. If the combustible gas concentration in the inspection target air exceeds the allowable range in this inspection, an alarm sound is generated from the speaker 25.

(3rd posture)
The third posture of the mobile inspection machine 1 is a posture in which the above-described alarm volume control is executed, and is different from the first posture and the second posture as shown in FIG. ing.
And the control part 21 is comprised so that it may perform the alarm volume control mentioned above, when it determines with having become such a 3rd attitude | position by the output signal of the inclination sensor 28. FIG.
Therefore, when an alarm sound is generated during the inspection in the second posture (see FIG. 4B), the operator operates the operation handle 6 while holding the operation handle 6, and The posture is changed to the third posture (see FIG. 4C). In this way, the alarm volume control is automatically executed by the control unit 21 without operating the switches 26 located away from the operator's hand, and the alarm sound is muted or volumed quickly and accurately. Can be reduced.

Further, when the control unit 21 determines that the third posture is set based on the output signal of the tilt sensor 28, in addition to the alarm sound volume control, a predetermined initial setting process can be executed.
In the initial setting process, the sensor sensitivity of the mobile inspection machine 1 is set to zero, and the basic performance state such as the remaining battery level of the mobile inspection machine 1 is checked. In this zero setting, it is checked whether or not the specific component concentration that is the inspection result of the mobile inspection machine 1 indicates zero. If the specific component concentration does not indicate zero, the zero point set for the output of the gas sensor 22 is set. to correct.
Further, the delay time until the alarm sound volume control is executed is set to, for example, 1 second with reference to the time point when the posture change to the third posture is detected by the output signal of the tilt sensor 28, and the initial setting process is performed. The delay time until execution is set to 3 seconds, for example. By setting such a delay time, even if the posture change to the third posture is mistakenly performed, it is possible to avoid the execution of unintended alarm volume control and initial setting processing by returning the posture. it can.

  In addition, the non-inspection posture, which is the posture of the inspection machine main body C in the third posture, is a posture other than the inspection posture that is difficult to perform at the time of a normal inspection unless the operator intends to do so. Specifically, as shown in FIG. 4 (c), the surrounding portion 51 of the air collecting portion 53 is a posture that floats from the ground surface g. This suppresses unintentionally changing the posture to the third posture at the time of the inspection of the second posture (see FIG. 4B), and alarm volume control when the posture is changed to the third posture. Thus, it can be clearly recognized that the alarm sound is temporarily muted or the volume is being lowered.

  Furthermore, the third posture (see FIG. 4C) is the first posture (see FIG. 4A) based on the moving operation position of the operation handle 6 in the second posture (see FIG. 4B). The posture is set on the opposite side of the storage position. That is, when changing the posture from the second posture to the third posture, the operator moves the operating handle 6 beyond the swing range as shown by the white arrow in FIG. The operation is performed to lift it toward the side opposite to the storage position on the side. Then, the inspection machine main body C is in a non-inspection posture in which the peripheral portion 51 of the air collecting portion 53 is lifted from the ground surface g. That is, during the inspection in the second posture), the operation of the operation handle 6 for changing the posture to the third posture is not the same as the operation of the operation handle 6 for changing the posture to the first posture. Clearly distinguished. Accordingly, it is possible to prevent an erroneous operation of the operation handle 6 for executing the alarm volume control.

  The posture of the mobile inspection machine 1 shown in FIG. 4 (c) is a state in which the inspection machine main body C is in a non-inspection posture in which the peripheral part 51 of the air collecting part 53 is lifted from the ground surface g. The wheel 42 and the support portion 35 are in a self-supporting posture in which they stand on the ground surface g, and the third posture is a posture including this self-supporting posture. As a result, at the time of executing the alarm volume control, the operator can take an appropriate action by releasing his hand from the operation handle 6 in a state where the worker is independent in the third posture.

  Further, the third posture in which the alarm volume control is executed is within the range from the posture in which the operation handle 6 is slightly lifted toward the self-supporting posture to the self-supporting posture from the second posture (see FIG. 4B). It is said that the attitude. Thus, even when an alarm sound is generated at the time of the inspection in the second posture, when the operator lifts the operation handle 6 slightly toward the self-standing posture side, the alarm volume control is executed, The alarm sound can be quickly silenced or the volume can be reduced. In addition, since the alarm sound is silenced or the volume is quickly reduced in this way, the operator can calm down and set the mobile inspection machine 1 in the above-described independent posture.

  In addition, the self-supporting posture included in the third posture is that the ground surface of the inspection machine main body C is obtained by grounding the support portion 35 to the ground surface g in a state where the rear traveling wheel 43 is floated from the ground surface g. The posture is set such that the moving operation along g is hindered. As a result, even when the posture is changed to the third posture unconsciously at the time of the inspection, the posture change is recognized by the operator because the traveling is inhibited. Therefore, the posture change is corrected, and unnecessary execution of the alarm volume control is avoided. When the inspection is performed again after execution of the alarm volume control in the third posture, the driving is inhibited as it is, so that the worker always changes the posture to the second posture, so that the alarm volume control is surely performed. To finish. This prevents inspection with the alarm sound muted or volume reduced.

  Further, the control unit 21 executes the alarm volume control when the third posture is reached. In executing this alarm volume control, the inspection target air on the ground surface g side is introduced and the inspection is performed. The inspection unit A and the display unit 24 that displays the combustible gas concentration and the like in the inspection target air are configured to be maintained in an operating state. Thus, even if the alarm volume control is executed by the attitude change to the third attitude and the alarm sound generated by the speaker 25 is muted or the volume is reduced, the operator can display the alarm on the display unit 24. It is possible to confirm the result of the inspection such as the combustible gas concentration that is the cause of the displayed alarm sound, and to appropriately take appropriate measures.

[Another embodiment]
(1) In the above embodiment, the third posture for executing the alarm volume control is set to a posture in which the inspection machine main body C is in a non-inspection posture other than the inspection posture. Although different from the second posture as the inspection posture, the posture of the inspection machine main body C as the inspection posture may be set similarly to the second posture. In this case, when the posture is changed from the second posture to the third posture, the position of the operation handle 6 is changed while the inspection machine main body C is maintained in the inspection posture in which the peripheral portion 51 of the air collection unit 53 is in contact with the ground surface g. The operation handle 6 is changed.

(2) In the above embodiment, as shown in FIG. 4 (c), the third posture for executing the alarm sound volume control is independent by allowing the front traveling wheel 42 and the support portion 35 to contact the ground surface g. However, such a configuration for self-supporting may be modified or omitted.

(3) In the above embodiment, in the third posture for executing the alarm sound volume control, the support unit 35 is grounded to the ground surface g as a configuration that inhibits the moving operation along the ground surface g of the inspection machine main body C. However, the moving operation may be inhibited by locking the rotation of the front traveling wheel 42 that is grounded to the ground surface g in the third posture. Moreover, you may comprise so that the movement operation along the ground surface g of the test | inspection machine main body C may be permitted in this 3rd attitude | position. In this case, the inspection machine main body C can be moved while the alarm volume control is executed.

(4) In the above embodiment, the operation direction of the operation handle 6 for changing the posture from the second posture at the time of inspection to the third posture for executing the alarm sound volume control is used as a reference for the moving operation position of the second posture. Although the direction opposite to the storage position of the first posture is set in the direction opposite to the storage position of the first posture, the operation handle 6 may be erroneously operated even when set in a direction that is clearly different from the side opposite to the storage position of the first posture. Can be prevented. Further, the operation direction of the operation handle 6 for changing the posture from the second posture to the third posture is set to the same direction as the storage position of the first posture with reference to the moving operation position of the second posture. That is, the alarm sound volume control may be executed by moving the operation handle 6 from the movement operation position to the storage position side.

(5) In the above embodiment, when the third posture is reached, the inspection unit A and the display unit 24 are configured to execute the alarm volume control while maintaining the operating state. The inspection unit A and the display unit 24 may be stopped.

DESCRIPTION OF SYMBOLS 1 Mobile inspection machine 6 Operation handle 21 Control part 24 Display part 51 Surrounding part 53 Air collection part A Inspection part B Alarm sound generation part C Inspection machine main body g Ground surface

Claims (7)

An inspection machine body including an inspection unit that introduces and inspects air to be inspected on the ground surface side, and an alarm sound generation unit that generates an alarm sound according to the inspection result of the inspection unit,
A control unit for controlling the operation of the inspection machine body;
An operation handle for moving the inspection machine main body along the ground surface, and a mobile inspection machine comprising:
A first posture in which the operation handle is positioned at a storage position on the ground surface side in a state where the inspection machine main body is in a predetermined inspection posture, and the operation handle is stored in a state in which the inspection machine main body is in the inspection posture. A posture that can be freely changed by operating the operation handle to a second posture positioned at a moving operation position above the position and a third posture different from the first posture and the second posture;
When the control unit is in the third posture, the alarm is not generated from the alarm sound generation unit, or the alarm sound control is performed to make the alarm sound volume smaller than a set sound volume.   The mobile inspection machine according to claim 1, wherein the third attitude is set to an attitude in which the inspection machine body is in a non-inspection attitude other than the inspection attitude. The inspection unit includes an air collection unit that is opened to the outside on the bottom side of the inspection machine body,
The inspection posture of the main body of the inspection machine is a posture in which a peripheral portion of the air collection unit is in contact with the ground surface,
The mobile inspection machine according to claim 2, wherein the non-inspection posture of the inspection machine body is a posture in which a peripheral portion of the air collection unit is lifted from a ground surface.   4. The mobile inspection according to claim 3, wherein the third posture includes a posture in which the inspection machine body is self-supporting in the non-inspection posture in which a surrounding portion of the air collection unit is lifted from the ground surface. Machine.   5. The mobile inspection machine according to claim 1, wherein the third attitude is set to an attitude in which a movement operation along a ground surface of the inspection machine body is hindered.   The said 3rd attitude | position is set to the attitude | position in which the said operation handle is located on the opposite side to the said storage position of the said 1st attitude | position on the basis of the said movement operation position of the said 2nd attitude | position. The mobile inspection machine according to any one of the above. A display unit for displaying the inspection result of the inspection unit;
The mobile control system according to any one of claims 1 to 6, wherein when the control unit is in the third posture, the alarm volume control is executed while the inspection unit and the display unit are maintained in an operating state. Inspection machine.

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