JP6778503B2 - Inspection accommodation structure - Google Patents

Description

The present invention relates to an inspection accommodating structure for inspecting an operating state by supplying an inspection gas containing the specific component to a gas inspection machine provided with a sensor unit that is sensitive to a specific component in the air to be inspected.

As a gas inspection machine of this type, conventionally, the air collecting part is moved along the ground surface in an inspection posture along the ground surface to inspect gas leaks from gas conduits buried in the ground. Mobile gas inspection machines are known (see, for example, Patent Document 1).
Specifically, such a gas inspection machine introduces the air to be inspected on the ground surface side collected by the air collecting unit into a sensor unit that is sensitive to a specific component such as flammable gas, and responds to the output of the sensor unit. The control unit calculates the concentration of a specific component in the air to be inspected and outputs the inspection result to the display unit or the like. Further, when the concentration of the specific component in the air to be inspected exceeds the permissible range, the alarm sound output unit outputs an alarm sound as an abnormal state.

Japanese Unexamined Patent Publication No. 5-322688

By the way, it is necessary to inspect the operating state of such a gas inspection machine prior to the actual inspection. As a conventional inspection accommodating structure, patent documents cannot be mentioned, but in general, an inspection gas containing a specific component is supplied to a main body capable of accommodating a gas inspection machine. The gas supply joint is fixedly arranged at the set gas connection position corresponding to the inspection gas receiving portion of the gas inspection machine.
In the above-mentioned inspection accommodating structure, the inspection gas is supplied to the sensor unit by supplying the inspection gas from the gas supply joint to the gas inspection machine housed in the main body, and the concentration of the inspection gas becomes a specific component. The corresponding inspection result will be output as the operating state of the gas inspection machine. By comparing this inspection result with the known specific component concentration in the inspection gas, the detection accuracy of the sensor unit can be accurately grasped, and appropriate inspection and calibration of the sensor unit are performed according to the result. can do.

However, the relative positional relationship between the main body and the gas inspection machine housed in the main body may fluctuate due to aged height fluctuation factors such as wheel wear on the gas inspection machine side and reduction of tire pressure. Along with this, the relative positional relationship between the gas supply joint of the main body and the inspection gas receiving part of the gas inspection machine also changes, so it is necessary to connect the gas supply fitting of the main body and the inspection gas receiving part of the gas inspection machine. Not only is it time-consuming, but if the fluctuation fee is large, it may lead to a situation where connection is not possible.

Further, when inspecting the operating state of the gas inspection machine, it is required to provide a communication unit capable of automatically acquiring the operating state of the gas inspection machine without the operator checking the gas inspection machine. There is. However, even in this case, if the communication unit on the main body side is fixedly placed at the set communication mounting position corresponding to the communication unit of the gas inspection machine, the wheel wear on the gas inspection machine side and the tire pressure are reduced over time. When the relative positional relationship between the main body and the gas inspection machine housed in the main body fluctuates due to various height fluctuation factors, the relative positional relationship between the communication unit of the gas inspection machine and the communication unit of the main body also fluctuates accordingly. It may lead to poor communication.

In view of this situation, the main problem of the present invention is that even if the relative positional relationship between the main body and the gas inspection machine fluctuates due to the secular height fluctuation factor on the gas inspection machine side, the main body and the gas inspection machine The point is to provide an inspection accommodation structure capable of reliably supplying and communicating with each other for inspection gas.

The first characteristic configuration according to the present invention is an inspection including the specific component connected to the gas inspection machine to a main body capable of accommodating a gas inspection machine provided with a sensor unit that is sensitive to a specific component in the air to be inspected. The point is that a joint unit having a gas supply joint for supplying the gas for use and a communication unit capable of communicating with the gas inspection machine is provided so that the position can be freely changed.

According to the above configuration, by supplying the inspection gas from the gas supply joint of the joint unit to the gas inspection machine housed in the main body, the inspection gas is supplied to the sensor unit, and the specific component concentration of the inspection gas is supplied. The inspection result according to the above will be output as the operating state of the gas inspection machine. By comparing this inspection result with the known specific component concentration in the inspection gas, the detection accuracy of the sensor unit can be accurately grasped, and appropriate inspection and calibration of the sensor unit are performed according to the result. can do.
Moreover, the communication unit provided in the joint unit allows the operator to automatically acquire the operating state of the gas inspection machine without checking the gas inspection machine.

Furthermore, even if the relative positional relationship between the main body and the gas inspection machine housed in the main body fluctuates due to aged height fluctuation factors such as wheel wear on the gas inspection machine side, this position change is inspected by gas. Since it can be absorbed by changing the position of the joint unit with respect to the main body that can accommodate the machine, the gas supply joint and communication unit of the joint unit are properly supplied with inspection gas and communicate with the gas inspection machine. It is possible to maintain a relative positional relationship that can be achieved.

Therefore, even if the relative positional relationship between the main body and the gas inspection machine housed in the main body fluctuates due to the secular height fluctuation factor on the gas inspection machine side, the joint unit of the main body and the gas inspection machine Since the inspection gas can be reliably supplied and the communication can be performed reliably, the inspection and communication of the operating state of the gas inspection machine including the detection accuracy of the sensor unit can be appropriately executed for a long period of time.
The second characteristic configuration according to the present invention is an inspection gas containing the specific component with respect to the gas inspection machine in a main body capable of accommodating a gas inspection machine equipped with a sensor unit that is sensitive to a specific component in the air to be inspected. A joint unit having a gas supply joint for supplying the gas and a communication unit capable of communicating with the gas inspection machine is provided so that the position can be freely changed.
The gas inspection machine is a mobile gas inspection machine in which an air collecting portion for collecting air to be inspected on the ground surface side is moved along the ground surface in an inspection posture along the ground surface.
The main body is at a point where the mobile gas inspection machine can be placed and accommodated.

The third characteristic configuration according to the present invention is that the joint unit is configured as a separate type that can be separated from the main body and mounted on the gas inspection machine.

According to the above configuration, the joint unit separated from the main body can be directly mounted on the mounting part of the gas inspection machine, so that the degree of freedom in setting the storage form of the joint unit with respect to the main body and the storage form of the gas inspection machine with respect to the main body is increased. Moreover, the movable range of the joint unit with respect to the main body can be freely set.
Therefore, compared to the case where the joint unit is repositionably attached to the main body within a certain range, the relative position between the main body and the gas inspection machine is achieved while simplifying the structure and reducing the manufacturing cost. Even if the relationship fluctuates greatly, the inspection gas can always be reliably supplied and communicated between the joint unit and the gas inspection machine.

The fourth characteristic configuration according to the present invention is that the joint unit has an engaging portion that can be engaged and disengaged with the engaged portion of the mounting portion of the gas inspection machine, and a vertical portion from the engaged portion of the gas inspection machine. The point is that the wearing posture maintaining means provided with the abutting portion that abuts on the portion deviated in the direction is provided.

According to the above configuration, when the joint unit separated from the main body is mounted on the mounting portion of the gas inspection machine, first, one of the engaging portion and the contact portion of the mounting posture maintaining means provided on the joint unit is engaged. After engaging the part with the engaged part of the mounting part of the gas inspection machine, the other contact part is brought into contact with the part vertically deviated from the engaged part in the gas inspection machine, thereby causing the gas inspection machine. On the other hand, the joint unit can be stably and stably mounted in a predetermined mounting posture.
Therefore, poor connection of the gas supply joint and communication between communication units due to the joint unit being mounted in a posture deviating from the predetermined mounting posture, such as tilting of the fitting unit mounted on the mounting site of the gas inspection machine. Defects can be suppressed.

Before Symbol engaged portion is constituted by a portion of the bumper of the gas inspection apparatus, the engaging portion that is configured to disengageably to both sides portions of intersection of the bumper.

According to the above configuration, the engaged portion on the gas inspection machine side for maintaining the mounting posture of the joint unit is configured to be advantageous in terms of structure and cost by utilizing a part of the bumper that protects the gas inspection machine. can do. Moreover, since the engaging portion of the joint unit is engaged with both intersecting sides of the bumper by utilizing the unique bending form of the bumper, the position of the joint unit engaged with the bumper in two directions is easy. , It can be surely regulated, and the mounting posture of the joint unit with respect to the gas inspection machine can be more stabilized.

The fifth characteristic configuration according to the present invention is that the communication unit of the joint unit intersects the mounting direction of the joint unit in a state where the joint unit is in a predetermined mounting posture with respect to the gas inspection machine. The point is that it is configured to enable infrared communication with the communication unit of the gas inspection machine.

According to the above configuration, the joint unit is mounted on the gas inspection machine along the mounting direction, and when the joint unit reaches a predetermined mounting posture, the communication unit of the joint unit and the communication unit of the gas inspection machine are mounted. Infrared communication is possible from directions that intersect with each other.
Therefore, when the communication means enables communication between the gas inspection machine and the joint unit, it can be determined that the joint unit is properly mounted on the mounting part of the gas inspection machine, and this automatic judgment is performed. Based on this, the execution of the inspection process can be started.
Therefore, when the joint unit is properly mounted on the gas inspection machine and the inspection process can be performed, the state is automatically regarded as the state in which communication with the gas inspection machine by the above communication means is possible. It is possible to start the execution of a predetermined inspection process.

The sixth characteristic configuration according to the present invention is an inspection gas containing the specific component with respect to the gas inspection machine in a main body capable of accommodating a gas inspection machine equipped with a sensor unit that is sensitive to a specific component in the air to be inspected. A joint unit having a gas supply joint for supplying gas and a communication unit capable of communicating with the gas inspection machine is provided so that the position can be freely changed, and the traveling wheels of the gas inspection machine are mounted around the axle on the main body. The point is that a wheel chock portion is provided to catch the gas so that it cannot move back and forth in a state where the posture of the aircraft can be changed by the rotation of the gas.

According to the above configuration, when the gas inspection machine is housed in the main body, the gas inspection machine is generally hung in a vertical posture in which the bottom surface is along the vertical direction and carried in. Therefore, the traveling wheels of the carried-in gas inspection machine are attached to the wheel chocks provided on the main body in the carrying-in posture, and the gas inspection machine is rotated around the axles of the traveling wheels to inspect the gas. The machine can be stored in the inspection position in the set storage position of the main body in a state where it cannot be moved back and forth.
Therefore, the operation from the time when the gas inspection machine is carried in to the time when the gas inspection machine is stored in the set storage position of the main body in the inspection posture is continuous, and the storage work of the gas inspection machine can be performed efficiently.

The seventh characteristic configuration according to the present invention is an inspection gas containing the specific component with respect to the gas inspection machine in a main body capable of accommodating a gas inspection machine equipped with a sensor unit that is sensitive to a specific component in the air to be inspected. A joint unit having a gas supply joint for supplying air and a communication unit capable of communicating with the gas inspection machine is provided so that the position can be freely changed, and the gas inspection machine collects the air to be inspected on the ground surface side. An air collecting part is provided, and a floor gas supply part for supplying the inspection gas to the air collecting part in a form of discharging to the air collecting part or its vicinity is provided on the floor part of the main body. The point is that the gas outlet is provided so as to face laterally.

According to the above configuration, by supplying the inspection gas from the floor gas supply unit provided on the floor of the main body to the air collecting unit of the gas inspection machine or its vicinity, the same as the air to be inspected at the time of actual inspection. In addition, since the inspection gas can be supplied to the sensor unit via the air collection unit of the gas inspection machine, the inspection performance of the air to be inspected by the air collection unit and the detection performance of the sensor unit during the actual inspection are performed. It is possible to accurately grasp whether or not the basic performance of the gas inspection machine such as the above is in a normal state, and it is possible to carry out appropriate maintenance according to the result.

Moreover, since the floor gas supply unit is provided on the floor portion of the main body with its gas discharge port facing laterally, for example, the gas discharge port of the floor gas supply unit is configured to face upward. Compared with the case, it is possible to prevent the gas discharge port of the floor gas supply unit from being clogged with foreign matter such as dust.
Therefore, it is appropriate for a long period of time to confirm the basic performance of the gas inspection machine in a form that matches the actual inspection by simply modifying the orientation of the gas discharge port of the floor gas supply unit as described above. Can be executed.

Perspective view at the time of inspection of the gas inspection machine used in the first embodiment Vertical cross-sectional view of the gas inspection machine used in the first embodiment when stored. A block diagram showing the configuration of the gas inspection machine inspection system provided with the inspection accommodation structure of the first embodiment and the inspection gas supply state at the time of executing the first inspection process. A block diagram showing the configuration of the gas inspection machine inspection system provided with the inspection accommodation structure of the first embodiment and the inspection gas supply state at the time of executing the second inspection process. Perspective view of the gas inspection machine accommodating device of the first embodiment and the gas inspection machine in a separated state. Perspective view of the gas inspection machine accommodating device of the first embodiment and the gas inspection machine in an inspected state. Perspective view of the accommodating device for the gas inspection machine of the first embodiment Front view of the joint unit of the accommodation device for the gas inspection machine of the first embodiment Cross-sectional view of the joint unit of the accommodation device for the gas inspection machine of the first embodiment Cross-sectional view of a main part when the joint unit of the accommodation device for the gas inspection machine of the first embodiment is attached to the gas inspection machine. Side view (a) when the gas inspection machine is carried into the accommodation device for the gas inspection machine of the first embodiment, and side view (b) when the gas inspection machine is changed to the inspection posture. Perspective view of the accommodating device for the gas inspection machine of the second embodiment Longitudinal sectional view of the accommodating device for the gas inspection machine of the second embodiment Perspective view of the main part of the rear view of the accommodation device for the gas inspection machine of the second embodiment. Horizontal sectional view of the main part of the accommodating device for the gas inspection machine of the second embodiment Vertical sectional view at the start of connection between the gas inspection machine accommodating device of the second embodiment and the gas inspection machine. A vertical cross-sectional view during connection between the gas inspection machine accommodating device of the second embodiment and the gas inspection machine. A vertical cross-sectional view of the gas inspection machine accommodating device of the second embodiment and the gas inspection machine when the connection is completed.

Embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
First, the configuration of the gas inspection machine A which is the inspection target of the gas inspection machine inspection method executed by the gas inspection machine inspection system GS provided with the inspection accommodation structure of the present invention will be described.

[Gas inspection machine]
As shown in FIGS. 1 to 4, the gas inspection machine A of the present embodiment has an inspection unit C that introduces and inspects the air to be inspected on the ground surface GL side, and an alarm according to the inspection result in the inspection unit C. A telescopic type that moves the inspection machine main body A1 equipped with the alarm sound generation unit B that generates a sound, the control unit 3 that controls the operation of the inspection machine main body A1, and the inspection machine main body A1 along the ground surface GL. It is provided with an operation handle 4. The gas inspection machine A is configured as a mobile gas inspection machine in which the air collecting unit 11 of the inspection unit C is moved along the ground surface GL in an inspection posture along the ground surface GL. Both are configured as gas leak inspection machines that inspect gas leaks from gas conduits (not shown) buried in the ground below the ground surface GL.

The inspection machine main body A1 is composed of a running frame 14 having running wheels 12 and 13 on the front and rear, and a main body box 15 incorporating a control unit 3 and various other auxiliary machines.
Further, the operation handle 4 can swing up and down within a predetermined range around the horizontal axis in the left-right direction with respect to the traveling frame 14 by the hinge structure 16 (see FIG. 1) provided at the front end portion of the traveling frame 14. The storage posture (see FIG. 2) placed horizontally or substantially horizontally along the upper surface of the battery cover 17 on the traveling frame 14 side and the inspection operation area above the storage posture were inclined. It is configured so that it can be changed between the inspection operation posture (see FIG. 1).

Further, the main body box 15 of the inspection machine main body A1 is a handle rod 4A on the proximal end side which is attached to the traveling frame 14 via the hinge structure 16 among a plurality of telescopic handle rods 4A to 4D constituting the operation handle 4. The main body box 15 is also configured to swing up and down with respect to the traveling frame 14 integrally with the operation handle 4.
Further, when the operation handle 4 is in the inspection operation posture, the operation handle 4 is extended so as to separate the grip portion 4a from the main body box 15, so that the operator performing the inspection is in a comfortable standing posture. The grip portion 4a on the tip end side of the operation handle 4 can be gripped and the gas inspection machine A can be pushed and moved.

A pipe bumper 18 that protects the front portion of the gas inspection machine A is attached to the front end portion of the traveling frame 14. The bumper 18 extends upward from a pair of left and right base end pipe portions 18a as horizontal side portions extending horizontally forward from the front end portion of the traveling frame 14 and the front end portions of both base end pipe portions 18a. It is composed of a pair of left and right vertical pipe portions 18b as vertical side portions and a horizontal pipe portion 18c as horizontal horizontal side portions extending to the upper ends of both vertical pipe portions 18b.
The front end of the lateral pipe portion 18c of the bumper 18 is arranged at a position on or near a vertical line passing through the front ends of both traveling wheels 12 on the front side. Therefore, the gas inspection machine A is configured to be able to stand on its own in a vertical posture in which the operation handle 4 faces upward by grounding the lateral pipe portion 18c of the bumper 18 and the wheels 12 for both traveling on the front side.
In the gas inspection machine A of the present embodiment, the operation handle 4 is locked and fixed in the retracted state in the retracted posture, and the gas inspection machine A is provided by the front wheels 12 for both traveling and the lateral pipe portion 18c of the bumper 18. Can be stably independent in a vertical posture, and the gas inspection machine A can be stored compactly in this independent state. Alternatively, in this self-supporting state, the grip portion 4a of the operation handle 4 can be lifted vertically to carry the gas inspection machine A in a suspended state.

As shown in FIGS. 1 and 2, on the lower surface side of the traveling frame 14, a seal made of a rubber sheet material for forming an air collecting portion 11 that is open to the outside on the bottom surface side of the inspection machine main body A1. A member 20 is provided. The front end portion and the rear end portion of the seal member 20 are fixed to the front end portion and the rear end portion of the traveling frame 14 in a state where the central portion is bent downward.
Further, a recess 20a recessed upward is formed on the lower surface side of the central portion of the seal member 20, and the internal space of the recess 20a is formed as an air collecting portion 11. When the posture of the inspection machine main body A1 is the inspection posture in which the traveling wheels 12 and 13 are grounded on the ground surface GL, the peripheral portion 20b of the air collecting portion 11 at the ground contact portion of the seal member 20 is the ground surface GL. The open portion of the air collecting portion 11 is covered with the ground surface GL, and the air collecting portion 11 is substantially sealed with respect to the outside air.

Further, an introduction port 30 facing the air collecting portion 11 is formed in the recess 20a of the seal member 20, and the introduction port 30 and a gas sensor 31 (an example of the sensor portion) described later are connected by a suction path 32. Has been done. Further, the suction path 32 is provided with a suction pump 33 that sucks the air to be inspected collected by the air collecting unit 11 through the suction path 32 and introduces it into the gas sensor 31.
With such a configuration, the inspection machine main body A1 is set to the inspection posture in which the peripheral portion 20b of the air collecting portion 11 at the ground contact portion of the seal member 20 is in contact with the ground surface GL, and the inspection machine main body A1 in the inspection posture is set to the ground surface GL. When the air is moved along the route, the air on the ground surface GL side existing in the air collecting unit 11 is sucked as the inspection target air, and the sucked inspection target air is introduced into the gas sensor 31.

As shown in FIGS. 1 to 4, the main body box 15 includes a gas sensor 31, a suction pump 33, and the like in addition to the control unit 3 composed of a computer. Further, as shown in FIG. 1, the main body box 15 is provided with a speaker 34 or the like capable of outputting sound in a state in which an operator who grips and operates the operation handle 4 can hear the sound. Further, on the upper end side of the main body box 15, the display unit 35 such as a liquid crystal display and various types for turning on / off the power, switching the range, adjusting the volume, etc., while being visible to the same operator. Switches 36 are arranged.
Then, the control unit 3 performs various arithmetic processes based on the output signals of the gas sensor 31 and the switches 36 and the like, and controls the display unit 35 and the speaker 34 based on the arithmetic results to display desired information and output voice. Is configured to do.

The gas sensor 31 is configured to use a known sensor element that is sensitive to flammable 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 3. Then, the control unit 3 obtains the concentration of a specific component in the air to be inspected from the output signal of the gas sensor 31 and displays it on the display unit 35, and when the flammable gas concentration exceeds the permissible range, works on it. A predetermined alarm display is displayed on the display unit 35 in order to notify the person, and the speaker 34 is configured to generate a predetermined alarm sound as the alarm sound generating unit B.

The above is the basic configuration of the gas inspection machine A. The gas inspection machine A has a configuration for executing the gas inspection machine inspection method described later, and the configuration will be described below.
As shown in FIGS. 2 to 4, an inspection gas receiving port portion 37 provided with a gas receiving joint 37A is provided on the front surface side of the main body box 15. The gas receiving joint 37A of the inspection gas receiving portion 37 is automatically opened when the inspection gas injection nozzle 61 of the gas supply joint 60 described later is connected, and the connection of the inspection gas injection nozzle 61 is released. It is composed of an automatic on-off valve that is automatically closed in the closed state.
The inspection gas receiving port 37 is connected to a branch path 38 branching from the upstream side of the suction pump 33 of the suction path 32, whereby the inspection gas receiving port 37 is connected to the branch path 38 and the suction path. The gas sensor 31 is communicated with the gas sensor 31 via the 32 and the suction pump 33.

A communication unit 39 capable of communicating with the outside by infrared communication is provided on the side surface side of the main body box 15, and the control unit 3 uses the communication unit 39 to communicate with the gas inspection machine inspection system GS, which will be described later. Information on the operating state of the gas inspection machine A, such as the inspection results such as the concentration of specific components detected by the gas sensor 31 and the states of various auxiliary machines, and the gas described later, with the accommodation device D for the gas inspection machine. Information for executing the inspection machine inspection method can be exchanged.

[Gas inspection machine inspection system]
Next, the gas inspection machine inspection system GS for checking the operating state of the gas inspection machine A will be described.
As shown in FIGS. 3 and 4, the gas inspection machine inspection system GS includes a gas inspection machine accommodation device D (an example of an inspection accommodation structure) capable of accommodating the gas inspection machine A and the gas inspection machine accommodation device. It is provided with a system main body E equipped with a computer capable of supplying inspection gas to D and being able to perform wired communication with the control unit 62 of the gas inspection machine accommodating device D.

As shown in FIGS. 3 to 7, the gas inspection machine accommodating device D is provided in the accommodating device main body (an example of the main body) D1 capable of accommodating the gas inspection machine A in the above-mentioned storage posture and the accommodating device main body D1. On the other hand, the joint unit D2 is provided so that the position can be freely changed.
The accommodating instrument main body D1 of the gas inspection machine accommodating device D includes a flat accommodating table portion 63 along the horizontal direction on which the front and rear traveling wheels 12 and 13 of the gas inspection machine A can be placed and stored. The inspection gas supplied from the gas cylinder 53 of the system main body E is supplied to the inspection gas injection nozzle 61 and the accommodating base 63 of the joint unit D2 on one side in the left-right direction on the front end side (right side in FIG. 5) of the portion 63. A gas relay function that selectively supplies the gas discharge nozzle 66 for inspection, and a wired communication that relays wired communication between the control unit 62 of the joint unit D2 and the inspection processing means 51 of the system main body E. A relay unit 64 having a communication relay function is provided.
The joint unit D2 is capable of infrared communication between the inspection gas injection nozzle 61 of the gas supply joint 60 that supplies the inspection gas containing a specific component to the gas inspection machine A and the communication unit 39 of the gas inspection machine A. It is configured as a separate type that has a communication unit 65 and can be mounted on the gas inspection machine A separately from the relay unit 64 of the accommodation device main body D1.

An inspection gas discharge nozzle 66 (an example of a floor gas supply unit) capable of supplying inspection gas to the air collection unit 11 of the gas inspection machine A placed and accommodated at a predetermined position on the floor surface of the storage base 63. ) Is provided. The inspection gas discharge nozzle 66 is provided in a posture of projecting into the air collecting portion 11 of the gas inspection machine A housed at a predetermined position of the storage base portion 63, whereby the air of the gas inspection machine A is provided. It is configured to supply the inspection gas to the air collecting unit 11 in a form of discharging the inspection gas to the collecting unit 11.

The inspection gas injection nozzle 61 of the joint unit D2 is inserted and connected to the inspection gas receiving portion 37 of the gas inspection machine A in a sealed state when the joint unit D2 is mounted on the mounting portion of the gas inspection machine A from the front. As a result, the inspection gas receiving portion 37 of the gas inspection machine A is injected with the inspection gas without entraining the ambient air. It is configured to supply inspection gas.

Inspection gas is supplied from the system main body E to the gas inspection machine accommodating device D through the inspection gas passage 41, and the inspection gas passage 41 is the discharge inspection gas connected to the inspection gas discharge nozzle 66. It is connected to each of the passage 42 and the inspection gas passage 43 for injection connected to the inspection gas injection nozzle 61 via a three-way switching valve 44 (an example of switching means) provided in the relay unit 64. There is. With this three-way switching valve 44, the inspection gas supply destination from the system main body E side, which is a common inspection gas supply source, is selected between the inspection gas discharge nozzle 66 and the inspection gas injection nozzle 61. Can be switched to.

The relay unit 64 of the accommodating device D for the gas inspection machine is provided with a control unit 62 including a computer for controlling the operation of the three-way switching valve 44.
The communication unit 65 of the joint unit D2 functions as a communication means capable of communicating with the communication unit 39 of the gas inspection machine A when the joint unit D2 is mounted on the mounting portion of the gas inspection machine A in a predetermined mounting posture. Will be done. Therefore, the state in which the communication unit 65 of the joint unit D2 enables infrared communication with the gas inspection machine A is a state in which the gas inspection machine A is housed in the gas inspection machine accommodating device D in an inspectable state. Will be shown.
The communication unit 65 of the joint unit D2 communicates with the communication unit 39 of the housed gas inspection machine A, so that the gas inspection machine inspection system GS uses the gas sensor 31 for the gas inspection machine A. It is possible to acquire information on the operating state of the gas inspection machine A such as the inspection result such as the detected specific component concentration and the state of various auxiliary machines, and further, to execute the gas inspection machine inspection method described later. Information etc. can be transmitted.

On the other hand, the inspection gas passage 41 of the system main body E is filled with a gas cylinder 53 and a pump filled with the inspection gas in order to supply the inspection gas to the gas inspection machine accommodating device D through the inspection gas passage 41. 54 and an on-off valve 55 are connected. Therefore, by opening the on-off valve 55 and operating the pump 54, inspection gas is supplied from the gas cylinder 53 to the gas inspection machine accommodating device D through the inspection gas passage 41, while the on-off valve 55 is closed and the pump 54 is closed. By stopping, the supply of this inspection gas is stopped.

Further, the system main body E is provided with an inspection processing means 51 in which a computer functions to execute the first inspection processing and the second inspection processing provided by the gas inspection machine inspection method described later, and further, the inspection possible state determination processing and the like. It is provided. Further, the system main body E is provided with an output unit 52 such as a display for outputting the inspection result obtained by the inspection processing means 51 executing the inspection method of the gas inspection machine.

[Gas inspection machine inspection method]
Next, the configuration of the gas inspection machine inspection method executed for the gas inspection machine A will be described.
This gas inspection machine inspection method includes an operator inspection performed by the five senses of the operator and a system inspection automatically executed by the gas inspection machine inspection system GS described so far.

In the worker inspection, although detailed explanation is omitted, damage to the seal member 20 constituting the air collecting unit 11, the tube forming the suction path 32, the traveling wheels 12, 13, the display unit 35, the speaker 34, etc. The condition of the gas inspection machine A, which the operator can check with all five senses, such as whether or not the problem has occurred, is inspected.

Then, the worker performs such a worker inspection, accommodates the gas inspection machine A in the gas inspection machine accommodating device D, and then removes the joint from the relay portion 64 of the gas inspection machine accommodating device D. The unit D2 is mounted on the mounting site of the gas inspection machine A in a predetermined mounting posture. Then, the inspection processing means 51 of the gas inspection machine inspection system GS determines that the state in which the communication unit 65 of the joint unit D2 enables infrared communication with the communication unit 39 of the gas inspection machine A is inspectable. When the inspectable state determination process is automatically executed and the inspectable state is determined by the inspectable state determination process, the first inspection process and the second inspection process are performed after executing the initial setting process described later. Run.
Hereinafter, details of these initial setting processes, the first inspection process, and the second inspection process will be described in order.

(Initial setting process)
In the initial setting process, the sensor sensitivity of the gas inspection machine A is set to zero, and the state of the remaining battery level of the gas inspection machine A is checked.
In this zero setting, with the supply of inspection gas to the gas inspection machine accommodating device D stopped, it is checked whether or not the specific component concentration, which is the inspection result obtained from the gas inspection machine A, shows zero. If it does not indicate zero, a correction signal is transmitted to the gas sensor 31 to correct the zero point set for the output of the gas sensor 31. Then, after executing such an initial setting process, the first inspection process and the second inspection process, which will be described later, are executed in order.

(1st inspection process)
After executing the initial setting process, the inspection processing means 51 automatically starts supplying the inspection gas to the gas inspection machine accommodating device D as shown in FIG. 3, and the three-way switching valve 44 automatically starts supplying the inspection gas. The supply destination of the inspection gas is switched to the inspection gas discharge nozzle 66 of the accommodating base 63, and the first inspection process is executed. Then, in this first inspection process, the basic performance of the gas inspection machine A at the time of actual inspection, that is, whether or not the air to be inspected is normally collected by the air collecting unit 11 and supplied to the gas sensor 31. The collection performance, the detection performance regarding whether or not the gas sensor 31 is sensitive to a specific component, and the control unit 3 output the detection result according to the output of the gas sensor 31 by the information display of the display unit 35, the alarm sound output of the speaker 34, or the like. Performance such as whether or not is checked.
Specifically, in this first inspection process, the inspection gas is discharged to the air collecting portion 11 of the gas inspection machine A housed in the gas inspection machine accommodating device D or its vicinity, and the air trapping is performed. It is supplied to the collecting unit 11. When the air collecting unit 11 or the suction path 32 leading to the air collecting unit 11 is not clogged and the basic performance of the gas inspection machine A is normal, the inspection gas supplied to the air collecting unit 11 is used. As with the air to be inspected during normal inspection, the suction force of the suction pump 33 supplies the air to the gas sensor 31 through the suction path 32.

Then, when the inspection processing means 51 executes such a first inspection processing, the communication unit 65 of the joint unit D2 communicates with the gas inspection machine A, and the operating state of the gas inspection machine A at that time. Is acquired, and when the acquired operating state is an operating state indicating that the inspection gas has been supplied to the gas sensor 31, it is determined that the basic performance of the gas inspection machine A is normal. On the contrary, when such an operating state cannot be acquired, it is determined that the basic performance of the gas inspection machine A is abnormal. Then, the determination result regarding the basic performance of the gas inspection machine A is output to the output unit 52 as the inspection result of the first inspection process.
On the other hand, the operator can accurately grasp whether or not the basic performance of the gas inspection machine A is in a normal state by checking the inspection result of the first inspection process output to the output unit 52. , Appropriate maintenance can be performed on the gas inspection machine A according to the result.

Further, as will be described in detail later, the detection accuracy of the gas sensor 31 is checked in the second inspection process. Therefore, although the inspection result that the detection accuracy of the gas sensor 31 is normal was output in the second inspection process later, it is said that the basic performance of the gas inspection machine A is abnormal in the first inspection process. When the inspection result of the above is output, it can be determined that an abnormality has occurred in the collection performance of the air to be inspected by the air collection unit 11.

(Second inspection process)
After executing the first inspection process and outputting the inspection result to the output unit 52, the inspection processing means 51 automatically supplies the inspection gas to the gas inspection machine accommodating device D as shown in FIG. In the state where the supply is continued, the inspection gas supply destination is switched from the inspection gas discharge nozzle 66 of the accommodating base 63 to the inspection gas injection nozzle 61 of the joint unit D2 by the three-way switching valve 44, and the second inspection process is performed. Run. Then, in this second inspection process, the detection accuracy of the gas sensor 31 in the gas inspection machine A is inspected.
Specifically, in this second inspection process, the inspection gas is injected into the inspection gas receiving portion 37 of the gas inspection machine A housed in the gas inspection machine accommodating device D, and the inspection gas is injected. It is supplied to the receiving portion 37. Then, the inspection gas supplied to the inspection port is supplied to the gas sensor 31 through the branch path 38 and the suction path 32 by the suction force of the suction pump 33 in a state where the mixing of the surrounding air is suppressed.

Further, in this second inspection process, by adjusting the output of the pump 54, the supply amount of the inspection gas to the inspection gas receiving portion 37 is larger than the suction amount of the suction pump 33 of the gas inspection machine A. It is set.
Then, in the gas inspection machine A, a part of the inspection gas flowing into the suction path 32 from the branch path 38 is sucked by the suction pump 33 and supplied to the gas sensor 31, but the rest collects air in the suction path 32. It will flow backward toward the portion 11 side. When the inspection gas flowing back into the suction path 32 is present in this way, the air flow from the air collecting unit 11 to the gas sensor 31 is substantially blocked, and as a result, air is mixed into the gas sensor 31. No pure inspection gas will be supplied.

Here, since the inspection gas is supplied to the gas sensor 31 in a state where the mixing of air is suppressed, when the detection accuracy of the gas sensor 31 is normal, the detection value of the specific component concentration by the gas sensor 31 is The error with respect to the known specific component concentration in the inspection gas is within the tolerance.
Then, when the inspection processing means 51 executes such a second inspection processing, the communication unit 65 of the joint unit D2 communicates with the communication unit 39 of the gas inspection machine A, and the gas inspection machine at that time communicates with the communication unit 39. As the operating state of A, the detected value of the specific component concentration by the gas sensor 31 is acquired, the detected value of the acquired specific component concentration is compared with the known specific component concentration in the inspection gas, and the error is compared with the gas sensor 31. Is obtained as the detection accuracy of, and the obtained detection accuracy of the gas sensor 31 is output to the output unit 52 as an inspection result.
Further, in this second inspection process, the sensitivity of the gas sensor 31 is changed with respect to the communication unit 39 of the control unit 3 of the gas inspection machine A so that the detection accuracy of the gas sensor 31 output as the inspection result becomes normal. It is also possible to automatically calibrate the gas sensor 31 in the form of instructing.

Next, a specific configuration of the accommodation device D for the gas inspection machine will be described.
The unit case 70 of the joint unit D2 has a front case portion 70A facing the front surface portion of the gas inspection machine A when mounted, and one of the left and right side surfaces of the gas inspection machine A, one of which has a communication window 40 of the communication unit 39. It is composed of a horizontal case portion 70B facing the side surface and integrally extending from one end of the front case portion 70A along the front-rear direction.
As shown in FIGS. 7 to 9, the front case portion 70A of the unit case 70 has a gas supply joint connected to the gas receiving joint 37A of the inspection gas receiving portion 37 of the gas inspection machine A from the front-rear direction. The inspection gas injection nozzle 61 of 60 is projected, and the communication window 67 of the communication unit 65 capable of infrared communication with the communication unit 39 of the gas inspection machine A is formed in the horizontal case portion 70B. There is.
Therefore, when the joint unit D2 is mounted on the mounting portion of the gas inspection machine A in a predetermined mounting posture from the front-rear direction, the inspection gas injection nozzle 61 of the joint unit D2 is attached to the gas receiving joint 37A of the gas inspection machine A. The communication window 67 of the communication unit 65 of the joint unit D2 and the communication window 40 of the communication unit 39 of the gas inspection machine A face each other in a state where infrared communication is possible in the left-right direction orthogonal to the mounting direction.
Therefore, even if the relative positional relationship with the gas inspection machine a housed in the accommodation device main body D1 changes due to wear of the traveling wheels 12 and 13 on the gas inspection machine A side, this position change. Can be absorbed by directly mounting the joint unit D2 separated from the accommodation device main body D1 to the mounting portion of the gas inspection machine A and aligning the vertical position of the joint unit D2 with the gas inspection machine A. The gas supply joint 60 and the communication unit 65 of the joint unit D2 can be reliably maintained in a relative positional relationship capable of properly supplying and communicating the inspection gas with the gas inspection machine A.

Further, the front case portion 70A of the unit case 70 is provided with a mounting posture maintaining means 74 for stably mounting and maintaining the joint unit D2 in a predetermined mounting posture with respect to the gas inspection machine A. The mounting posture maintaining means 74 is an example of an engaged portion 71 provided at a mounting portion of the joint unit D2 in the gas inspection machine A, and the engaging portion 72 that can be engaged and disengaged with a part of the bumper 18 as the engaged portion. It is composed of a contact portion 73 that comes into contact with a portion of the front portion of the gas inspection machine A that is biased downward in the vertical direction from the engaged portion of the bumper 18.
Therefore, when the joint unit D2 detachably stored in the accommodating appliance main body D1 is separated and mounted on the gas inspection machine A, the engaging portion 72 and the contact portion of the mounting posture maintaining means 74 provided on the joint unit D2 are contacted. Of 73, first, the engaging portion 72 is engaged with the engaged portion of the bumper 18 of the gas inspection machine A, and then the other contact portion 73 is vertically aligned with the engaged portion of the bumper 18 of the gas inspection machine A. By contacting the portion that is biased downward in the direction, the joint unit D2 can be stably and stably mounted and maintained in a predetermined mounting posture with respect to the gas inspection machine A.
As a result, it is possible to suppress poor connection of the gas supply joint 60 and poor communication between communication units due to tilting of the joint unit D2 with respect to the gas inspection machine A.

In the present embodiment, the intersecting side portions of the bumper 18, specifically, the horizontal pipe portion 18c as the horizontal side portion and the vertical pipe portion as one vertical side portion located on the existing side of the communication window 40 of the communication unit 39. One corner portion 18e composed of 18b is formed in the engaged portion 71 of the mounting portion of the gas inspection machine A.
Therefore, the engaged portion 71 on the gas inspection machine A side for maintaining the mounting posture of the joint unit D2 is advantageous in terms of structure and cost by utilizing a part of the bumper 18 that protects the gas inspection machine A. Can be configured in. Moreover, by utilizing the unique bending form of the bumper 18, the engaging portion 72 of the joint unit D2 is combined with the intersecting side portions of the bumper 18, that is, the horizontal pipe portion 18c forming one corner portion 18e of the bumper 18. Since it is engaged with the vertical pipe portion 18b, the rotation of the joint unit D2 with respect to the horizontal pipe portion 18c and the vertical pipe portion 18b of the bumper 18 is prevented in the engaged state, and the joint unit D2 with respect to the bumper 18 is bidirectional. The position of, that is, the mounting position in the left-right direction and the vertical direction can be reliably regulated to the set mounting position, and the mounting posture of the joint unit D2 with respect to the gas inspection machine A can be further stabilized.

In the engaging portion 72 of the mounting posture maintaining means 74, one corner portion 18e of the bumper 18 is detachably fitted from the front, and the gas inspection machine A and the joint unit D2 mounted on the gas inspection machine A are fitted vertically and vertically. The lateral “L” -shaped fitting groove 76 that prevents relative movement in the direction and the inlet side of the lateral fitting groove 76a into which the lateral pipe portion 18c of the bumper 18 is fitted are closed. A pair of left and right engaging arms 77 that can be switched between the engaged state and the disengaged state, and an elastic urging body that swings and urges the engaging arm 77 into the engaged state. It is composed of the tension coil spring 78 of the above.

The engaging arm 77 is pivotally mounted vertically and vertically around the axis of the pivot pin 80 along the left-right direction in the arm mounting recess 70a formed in the front case portion 70A of the unit case 70, and the engaging arm 77 is At the tip of the fitting groove 76, the engaging arm 77 resists the elastic urging force of the tension coil spring 78 as the bumper 18 comes into contact with the lateral pipe portion 18c of the fitting groove 76. A pair of left and right rollers 79 that swing in the disengaged state are rotatably provided.
Immediately after the engagement arm 77 and the roller 79 pass through the lateral pipe portion 18c of the bumper 18 that is transferred to the lateral fitting groove portion 76a of the fitting groove 76, the engagement arm 77 and the roller 79 return to the engaged state by the elastic urging force of the tension coil spring 78 and swing. .. As shown in FIGS. 9 and 10, between the lower side surface 77a of the engaging arm 77 in the engaged state and the lateral fitting groove portion 76a of both rollers 79 and the fitting groove 76, the lateral pipe portion of the bumper 18 An engaging space 81 that can hold the 18c in a state of being blocked from moving in the front-rear direction and the up-down direction is formed.
Further, a spring storage recess 70b for accommodating and arranging each tension coil spring 78 is formed in communication with the intermediate portion of the arm mounting recess 70a in the front case portion 70A of the unit case 70, and each tension coil spring 78 is formed with an engaging arm 77. The first spring locking member 82 provided at an intermediate portion between the roller 79 and the pivot pin 80 and the second spring locking member 83 provided at the lower part of the inner wall of the spring storage recess 70b are stretched. It is installed.

The contact portion 73 of the mounting posture maintaining means 74 is formed so as to project along the left-right direction at the lower portion of the inspection gas injection nozzle 61 in the front case portion 70A of the unit case 70.
The position of the center of gravity of the unit case 70 is located on the side opposite to the extension side of the lateral case portion 70B with respect to the contact position of the contact portion 73. Therefore, when the joint unit D2 is mounted on the gas inspection machine A, that is, the lateral fitting groove portion 76a of the fitting groove 76 of the unit case 70 is fitted to the horizontal pipe portion 18c of the bumper 18 and is in an engaged state. In a state where both rollers 79 of a certain engaging arm 77 prevent the lateral pipe portion 18c from being disengaged, the contact portion 73 of the joint unit D2 is biased downward from the engaged portion of the bumper 18 in the vertical direction. A moment that presses against the affected area acts. As a result, the mounting posture of the joint unit D2 with respect to the gas inspection machine A can be further stabilized.

In the state where the joint unit D2 is stored in the relay portion 64 of the accommodation device main body D1, the front case portion 70A of the unit case 70 is in a sideways posture mounted on the upper surface 85a of the relay case 85 of the relay portion 64, and the unit The horizontal case portion 70B of the case 70 is in a vertical posture in contact with the front surface 85b of the relay case 85.
The lateral case portion 70B of the unit case 70 is formed with a storage fitting ridge 89 that is detachably fitted from above or in front of the vertical storage fitting groove 86 formed in the front surface 85b of the relay case 85. The upper surface 85a of the relay case 85 has a circular relief hole 87 into which the inspection gas injection nozzle 61 of the front case portion 70A enters, and a storage fitting recess in which the contact portion 73 is detachably fitted from above. 88 and are formed.
Then, when the joint unit D2 is stored in the relay portion 64 of the accommodation device main body D1, the storage fitting ridge 89 of the lateral case portion 70B of the unit case 70 is moved upward or forward into the storage fitting groove 86 of the relay case 85. By fitting from the above, it is possible to prevent the unit case 70 from moving relative to the relay case 85 in the left-right direction. Further, by fitting the contact portion 73 of the unit case 70 into the storage fitting recess 88 of the relay case 85 from above, it is possible to prevent the unit case 70 from moving relative to the relay case 85 in the front-rear direction. ..

As shown in FIGS. 5 to 7, the storage base 63 of the storage equipment main body D1 includes a storage base 63 on which the gas inspection machine A is mounted and a pair of left and right traveling wheels on the front side of the gas inspection machine A. By fitting and mounting the 12 in a detachable manner from above, the wheels 12 for both traveling are immovably received in a state where the posture of the gas inspection machine A is allowed to change due to the rotation of the wheels 12 for both traveling around the axle. A pair of left and right wheel chock portions 91 are provided.
Each wheel chock 91 is formed with a semi-arc-shaped tire storage recess 91a capable of accommodating a substantially half portion of the tire portion of the traveling wheel 12, and the outer portion of the traveling wheel 12 in the tire accommodating recess 91a is formed. A position regulating plate 91b that regulates the storage position of the tire portion of the stored traveling wheel 12 in the left-right direction is integrally formed.

Therefore, as shown in FIG. 11A, the operator lifts the grip portion 4a of the operation handle 4 vertically and carries in the gas inspection machine A in a suspended state, and carries in the gas inspection machine A in a suspended state on the front side of the gas inspection machine A. A pair of left and right traveling wheels 12 are fitted and mounted on both wheel chock portions 91 of the accommodating base portion 63.
In this fitted state, the gas inspection machine A can be stably made to stand on its own in a vertical posture by the two traveling wheels 12 on the front side and the horizontal pipe portion 18c of the bumper 18.
After that, when the grip portion 4a of the operation handle 4 is operated on the side where the traveling wheel 13 on the rear side of the gas inspection machine A in the self-supporting posture comes into contact with the ground, the gas inspection machine A moves forward as shown in FIG. 11B. The wheels 12 for both traveling on the side rotate around the axle and are accommodated in a predetermined position of the accommodating base 63 in an inspectable state.

Further, as shown in FIGS. 3, 4, and 7, the inspection gas discharge nozzle 66 projecting upward from the floor surface of the accommodating base 63 has its gas discharge port 66a laterally oriented (in the embodiment, forward). It is provided in a state of facing (horizontal direction).
As described above, by configuring the gas discharge port 66a of the inspection gas discharge nozzle 66 in the lateral direction, for example, as compared with the case where the gas discharge port 66a of the inspection gas discharge nozzle 66 is configured upward. , It is possible to prevent the gas discharge port 66a from being clogged with foreign matter such as dust.
Therefore, it is possible to confirm the basic performance of the gas inspection machine A in a form suitable for the actual inspection for a long period of time by simply modifying the orientation of the gas discharge port 66a of the inspection gas discharge nozzle 66 as described above. It can be properly executed over.

[Second Embodiment]
12 to 18 are an accommodating instrument main body (an example of the main body) D1 capable of accommodating the gas inspection machine A in the accommodating posture, and a joint unit D2 provided so as to be freely repositionable with respect to the accommodating instrument main body D1. Another embodiment of the gas inspection machine accommodating device D is shown. The inspection function of the gas inspection machine inspection system GS including the accommodation device D for the gas inspection machine and the inspection function of the gas inspection machine A are the inspection function of the gas inspection machine inspection system GS and the gas inspection described in the first embodiment described above. It is configured to be substantially the same as the inspection function of the machine A.
In the first embodiment described above, the joint unit D2 of the gas inspection machine accommodating device D is configured as a separate type that can be separated from the accommodating device main body D1 and mounted on the gas inspection machine A. However, in this second embodiment, The joint unit D2 is assembled to the accommodating device main body D1 so as to be freely repositionable within a certain range, and the configuration thereof will be described below.

As shown in FIGS. 12 to 14, the accommodating equipment main body D1 includes a horizontally flat accommodating base 100 and a main body mounting frame 110 erected above the front end of the accommodating base 100. Of these, the main body mounting frame 110 is provided with a joint unit D2 whose position can be freely changed.
As shown in FIGS. 12 to 15, a horizontal flat accommodating surface 101 on which the gas inspection machine A is mounted is provided on the accommodating table 100 of the accommodating device main body D1, and the gas inspection machine A is mounted on the accommodating surface 101. In order to guide the slope portion 102 for traveling and entering and the traveling wheel 12 on the front side of the gas inspection machine A that has entered the accommodation surface portion 101 to a predetermined position in the left-right direction, the front end side is closer to the left-right facing distance. A pair of left and right side guide portions 103 are provided, which are arranged in an inclined posture in a substantially "eight" shape in a plan view.
Then, the operator pushes the gas inspection machine A in the stowed posture with the traveling wheels 12 and 13 in contact with the ground, and moves the gas inspection machine A from the slope portion 102 toward the accommodation surface portion 101 to move the gas inspection machine A. Is accommodated in a predetermined inspection position of the accommodating surface portion 101 by the guidance of the left and right positions by the side guide portion 103.

As shown in FIGS. 12, 15, and 18, the accommodating surface portion 101 has an inspection gas discharge nozzle 66 (for floors) capable of supplying inspection gas to the air collecting portion 11 of the accommodating gas inspection machine A. An example of a gas supply unit) is provided. The inspection gas discharge nozzle 66 is arranged so as to face the air collecting portion 11 of the gas inspection machine A housed in the predetermined inspection position of the housing surface portion 101, whereby the air collecting portion of the gas inspection machine A is arranged. It is configured to supply the inspection gas to the air collecting unit 11 in a form of discharging the inspection gas to the unit 11.

Next, the configuration of the joint unit D2 will be described.
As shown in FIGS. 12 to 15, the main body mounting frame 110 of the accommodation device main body D1 is inspected for gas due to aged height fluctuation factors such as wear of the traveling wheels 12 and 13 of the gas inspection machine A. An elevating frame 111 that can move up and down is provided within a range that can at least absorb vertical fluctuations of the inspection gas receiving portion 37 of the machine A.
A pair of left and right elevating guide shafts 112 are attached to the upper flange 110A and the intermediate flange 110B which are bent and formed at the upper end and the upper and lower intermediate portions of the main body mounting frame 110, and are bent at the upper end and the lower end of the elevating frame 111, respectively. A first sliding bearing 113 slidably mounted along the elevating guide shaft 112 of the main body mounting frame 110 is attached to the upper flange 111A and the lower flange 111B formed.
Further, the elevating frame 111 extends over the first spring engaging member 114 provided on the left and right side portions of the upper flange 110A of the main body mounting frame 110 and the second spring engaging member 115 provided on the left and right both side portions of the elevating frame 111. A pair of first tension coil springs 116, which is an example of an elastic biasing body that moves and biases upwards, are stretched.

As shown in FIGS. 12, 13, and 15, the elevating frame 111 has a gas supply joint 60 connected to the gas receiving joint 37A of the inspection gas receiving portion 37 of the gas inspection machine A from the front-rear direction. The inspection gas injection nozzle 61 of the gas supply joint 60 is brought into contact with the inspection gas injection nozzle 61 and the lateral pipe portion 18c of the bumper 18 of the gas inspection machine A that enters the predetermined inspection position of the accommodation surface portion 101. When the gas inspection machine A enters the predetermined inspection position of the gas connection height adjusting mechanism 130 that corrects the gas receiving joint 37A of the inspection gas receiving portion 37 of the gas inspection machine A to the same height position as the gas receiving joint 37A and the accommodation surface portion 101. A locking mechanism 140 is provided to lock and hold the gas inspection machine A at a predetermined inspection position.
Further, as shown in FIGS. 12 to 15, the elevating frame 111 is inspected for the gas supply joint 60 by abutting with the bumper 18 of the gas inspection machine A entering the predetermined inspection position of the accommodating surface 101. Between the pair of left and right approach guide members 120 that correct the connection position of the gas receiving joint 37A of the gas inspection machine A to the gas injection nozzle 61 in the left-right direction to the set connection position, and the communication unit 39 of the gas inspection machine A. Communication between the communication unit 65 of the communication case 122 and the gas inspection machine A when the gas inspection machine A enters the predetermined inspection position of the communication case 122 having the communication unit 65 and the communication window 121 capable of infrared communication and the accommodation surface portion 101. A shutter mechanism 150 that allows infrared communication with the unit 39 is provided.

As shown in FIGS. 12, 13, and 15, a pair of left and right first support shafts 124 that are horizontal along the front-rear direction are attached to the joint mounting member 123 of the gas supply joint 60, and both first support shafts 124. Is slidably fitted in the second sliding bearing 125 provided on the elevating frame 111 in the front-rear direction in a penetrating state.
A plate-shaped interlocking member 126 that interlocks the front-rear sliding of both first support shafts 124 is attached to the rear ends of both first support shafts 124 that project rearward from the second sliding bearing 125, and the interlocking members Between 126 and the rear cover 119 attached to the elevating frame 111 in a state of protruding rearward from the rear side plate 110C of the main body mounting frame 110, an interlocking member 126, both first support shafts 124, and a joint mounting member 123 are interposed. A pair of left and right compression coil springs 127 are provided as elastic urging bodies for projecting and urging the inspection gas injection nozzle 61 of the gas supply joint 60 to the front side.
Each compression coil spring 127 extends horizontally forward from the rear side plate 119A of the rear cover 119 and is exteriorized by a spring mounting shaft 128 penetrating the interlocking member 126.

As shown in FIGS. 12 to 16, the gas connection height adjusting mechanism 130 has a block-shaped engaging member having an engaging groove 131 in which the lateral pipe portion 18c of the bumper 18 of the gas inspection machine A is engaged from the front. 132 and a horizontal second support shaft 133 extending rearward from a plurality of locations (four locations in the embodiment) on the back surface of the engaging member 132 are provided. Among them, the second support shaft 133 penetrates the elevating frame 111, and the rear end portion of the penetrating second support shaft 133 is fixed to the interlocking member 126.
Therefore, as shown in FIG. 18, when the lateral pipe portion 18c of the bumper 18 of the gas inspection machine A entering the predetermined inspection position of the accommodating surface portion 101 engages with the engaging groove 131 of the engaging member 132 and comes into contact with the engaging groove 131. The engaging member 132 moves backward against the elastic urging force of the compression coil spring 127. The gas injection nozzle 61 for inspection of the gas supply joint 60 also retracts in conjunction with the backward movement of the engaging member 132, but for inspection of the gas supply joint 60 at a stage before the engaging member 132 starts the backward movement. The connection between the gas injection nozzle 61 and the gas receiving joint 37A of the inspection gas receiving portion 37 of the gas inspection machine A is completed.

A lower inclined guide surface 131A and an upper inclined guide surface 131B are formed in the opening side portion of the engaging groove 131 of the engaging member 132 so that the opening width in the vertical direction becomes larger toward the front side. Among them, the lower inclined guide surface 131A has the connection height position of the inspection gas receiving portion 37 of the gas inspection machine A set from the set connection height position due to wear of the traveling wheels 12 and 13 of the gas inspection machine A. When the gas is in a low state, it comes into contact with the lateral pipe portion 18c of the bumper 18 of the gas inspection machine A from the front-rear direction.
Along with this contact, the engaging member 132 and the elevating frame 111 are pushed downward against the elastic urging force of the first tension coil spring 116, and the bumper 18 is inserted into the engaging groove 131 of the pushed down engaging member 132. The horizontal pipe portion 18c of the above is transferred.
The amount of pushing down of the engaging member 132 corresponds to the amount of change in the connection height position of the inspection gas receiving portion 37 due to wear of the traveling wheels 12 and 13, and the bumper is formed in the engaging groove 131 of the engaging member 132. In the state where the horizontal pipe portion 18c of 18 is inserted, the inspection gas injection nozzle 61 of the gas supply joint 60 is corrected to the same height position as the gas receiving joint 37A of the inspection gas receiving portion 37 of the gas inspection machine A. There is.

As shown in FIGS. 12 to 16, the locking mechanism 140 is freely switchable between an engaging state in which the inlet side of the engaging groove 131 of the engaging member 132 is closed and an engaging state in which the engaging member 132 is opened. It is composed of a swing-type second engaging arm 141 and second tension coil springs 142A and 142B, which are examples of elastic biasing bodies that swing and urge the second engaging arm 141 in an engaged state. There is.
The second engaging arm 141 is pivotally attached to a block-shaped second mounting member 143 mounted on the back surface of the elevating frame 111 around the axis of the pivot pin 144 along the left-right direction so as to swing up and down. At the tip of the engaging arm 141, the second engaging arm 141 is attached to the second tension coil spring 142 as the bumper 18 comes into contact with the lateral pipe portion 18c of the bumper 18 that moves into the engaging groove 131 of the engaging member 132. A roller 145 that swings in a disengaged state against an elastic urging force is rotatably provided.
Further, as shown in FIG. 13, one of the second tension coil springs 142A is an intermediate portion on the front side of the pivot pin 144 in the second engaging arm 141 and a third spring hooking member 146 provided on the elevating frame 111. It is stretched between and. The other second tension coil spring 142B is stretched between the rear end portion of the second engaging arm 141 and the fourth spring hooking member 147 provided on the top plate 119b of the rear cover 119.

Further, as shown in FIGS. 13 and 16, the engaging member 132 protrudes forward by the elastic urging force of the compression coil spring 127 and moves forward (no pressing force from the lateral pipe portion 18c of the bumper 18). When in the load state), the rotation axis of the roller 145 is located near the back end surface 131a of the engagement groove 131 of the engagement member 132 with which the lateral pipe portion 18c of the bumper 18 abuts in the left-right direction. It is set to be placed in.
Therefore, as shown in FIG. 17, when the lateral pipe portion 18c of the bumper 18 enters the inner side of the engaging groove 131 of the engaging member 132, it comes into contact with the roller 145, and as the engaging member 132 moves backward, it comes into contact with the roller 145. It swings to the disengagement side.
Then, as shown in FIG. 18, immediately after the lateral pipe portion 18c of the bumper 18 moving together with the engaging member 132 has passed through the roller 145, the second engaging arm 141 and the roller 145 are of the second tension coil spring 142. It returns to the engaged state and swings by elastic urging force. As a result, the lateral pipe portion 18c of the bumper 18 is sandwiched and held between the inner end surface 131a of the engaging groove 131 of the engaging member 132 and the roller 145.

The pair of left and right approach guide members 120 are inspected for gas on the accommodating table 100 by contact with both corners 18e of the bumper 18 of the gas inspection machine A that enters the predetermined inspection position of the accommodating surface 101 of the accommodating table 100. An inclined guide surface 120a for correcting the left-right position of the machine A is formed.
By the guide action of the inclined guide surface 120a of both approach guide members 120, the connection position of the gas receiving joint 37A of the gas inspection machine A to the inspection gas injection nozzle 61 of the gas supply joint 60 in the left-right direction is corrected to the set connection position. can do.

As shown in FIGS. 14 and 15, the shutter mechanism 150 has a communication path cutoff state in which the shutter mechanism 150 has entered the infrared communication path between the communication window 121 and the communication unit 65 in the communication case 122 and retracts backward from the infrared communication path. A shutter member 151 that can switch to the open communication path state and a second compression coil spring 152 that moves and urges the shutter member 151 to the communication path cutoff state are provided.
The rear portion 151a of the shutter member 151 is formed by being movably penetrated through the elevating frame 111 in the front-rear direction and then bent in the left-right direction in parallel with the elevating frame 111. The bent rear portion 151a of the shutter member 151 is provided with an open operating shaft 153 that penetrates the elevating frame 111 and projects into the front-rear operating region of the joint mounting member 123 of the gas supply joint 60.
The open working shaft 153 abuts on the joint mounting member 123 of the gas supply joint 60 that moves backward integrally with the engaging member 132, so that the shutter member 151 in the communication path cutoff state is brought into contact with the second compression coil spring 152. It operates in the open communication path against the elastic urging force.

[Other Embodiments]
(1) In each of the above-described embodiments, the floor gas supply unit (inspection gas discharge nozzle) 66 that supplies the inspection gas to the air collection unit 11 of the gas inspection machine A is replaced with the air collection unit A of the gas inspection machine A. It was configured to open in a posture facing the unit 11 to release the inspection gas to the air collecting unit 11, but separately, in the range where the released inspection gas is collected by the air collecting unit 11. Instead of discharging the gas directly to the air collecting unit 11, for example, the inspection gas may be discharged in the vicinity of the air collecting unit 11.

(2) In each of the above-described embodiments, the gas inspection machine A is a mobile gas inspection in which the air collecting unit 11 of the inspection unit C is moved along the ground surface GL in an inspection posture along the ground surface GL. Although the machine has been described as an example, it may be a portable gas inspection machine provided with at least a sensor unit (gas sensor) 31 that is sensitive to a specific component in the air to be inspected.

(3) In configuring the joint unit D2 so as to be movable with respect to the accommodation device main body D1, even if the joint unit D2 is attached to the tip of an arm that is provided in the accommodation device main body D1 and is movable in the three-dimensional direction. Good.

(4) In the above-described first embodiment, when the joint unit D2 separated from the accommodation device main body D1 is attached to the relay portion 64 of the accommodation device main body D1 to the mounting portion of the gas inspection machine A, the joint unit D2 is connected to the joint unit D2. A winder for winding the gas hose and the communication line unwound from the relay unit 64 may be provided in this state.

(5) In the second embodiment described above, a scale or a wear tolerance value for measuring the wear state of the traveling wheel 12 may be added to the wheel chock portion 91.

A Gas inspection machine D Inspection storage structure (Gas inspection machine storage equipment)
D1 body (containment device body)
D2 Joint unit 11 Air collecting part 12 Running wheel 18 Bumper 18b Side part (vertical pipe part)
18c side part (horizontal pipe part)
31 Sensor unit (gas sensor)
60 Gas supply fitting 65 Communication unit 66 Floor gas supply unit (inspection gas discharge nozzle)
66a Gas discharge port 71 Engagement part 72 Engagement part 73 Contact part 91 Wheel chock part

Claims (7)

A gas supply joint that is connected to the gas inspection machine and supplies inspection gas containing the specific component to a main body that can accommodate a gas inspection machine equipped with a sensor unit that is sensitive to a specific component in the air to be inspected. An inspection accommodating structure in which a joint unit having a communication unit capable of communicating with the gas inspection machine is provided so that the position can be freely changed. A gas supply joint that supplies an inspection gas containing the specific component to the gas inspection machine and the gas in a main body capable of accommodating a gas inspection machine equipped with a sensor unit that is sensitive to a specific component in the air to be inspected. A joint unit having a communication unit that can communicate with the inspection machine is provided so that the position can be changed freely.
The gas inspection machine is a mobile gas inspection machine in which an air collecting portion for collecting air to be inspected on the ground surface side is moved along the ground surface in an inspection posture along the ground surface.
The main body has an inspection accommodation structure capable of mounting and accommodating the mobile gas inspection machine . The inspection accommodating structure according to claim 1 or 2, wherein the joint unit is separated from the main body and mounted on the gas inspection machine in a separate type . The joint unit comes into contact with an engaging portion that can be engaged and disengaged with the engaged portion of the mounting portion of the gas inspection machine and a contact portion that abuts on a portion that is vertically deviated from the engaged portion of the gas inspection machine. The inspection accommodating structure according to any one of claims 1 to 3 , wherein a wearing posture maintaining means including a portion is provided . The communication unit of the joint unit is located between the communication unit of the gas inspection machine and the communication unit of the gas inspection machine from a direction intersecting the mounting direction of the joint unit in a state where the joint unit is in a predetermined mounting posture with respect to the gas inspection machine. The inspection accommodation structure according to any one of claims 1 to 4, which is configured to enable infrared communication. A gas supply joint that supplies an inspection gas containing the specific component to the gas inspection machine and the gas in a main body capable of accommodating a gas inspection machine equipped with a sensor unit that is sensitive to a specific component in the air to be inspected. A joint unit having a communication unit capable of communicating with the inspection machine is provided so that the position can be freely changed, and the main body allows the movement wheel of the gas inspection machine to change the posture of the machine by rotating around the axle. test accommodating structure that that have chock unit is provided to receive immovably back and forth state. A gas supply joint that supplies an inspection gas containing the specific component to the gas inspection machine and the gas in a main body capable of accommodating a gas inspection machine equipped with a sensor unit that is sensitive to a specific component in the air to be inspected. A joint unit having a communication unit capable of communicating with the inspection machine is provided so that the position can be freely changed, and the gas inspection machine is provided with an air collection unit for collecting the air to be inspected on the ground surface side. On the floor of the main body, a floor gas supply unit that supplies the inspection gas to the air collection unit in the form of discharging the air to the air collection unit or its vicinity has a gas discharge port directed laterally. test containment structure have that point provided by the state.

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