Gas detection equipment

Abstract

To provide a gas detector with improved convenience.SOLUTION: A gas detector comprises: a first suction part that can suck in sample gas; a plug that is inserted into a plug receptor; a second suction part that can suck in purge gas from a hole penetrating a surface on which the plug receptor is installed; and a gas sensor that, based on the sample gas and the purge gas, detects at least one of the type and concentration of gas included in the sample gas. The second suction part can suck in, as the purge gas, gas located in a second space partitioned, by the surface on which the plug receptor is installed, from a first space where the first suction part and the gas sensor are located.SELECTED DRAWING: Figure 1

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Japanese Patent Application No. 2019-154992, filed on August 27, 2019, the entire disclosure of which is incorporated herein by reference. [Technical field]

[0002] The present disclosure relates to a gas detection device. [Background technology]

[0003] Conventionally, sensors such as odor sensors capable of detecting odors or gas concentration sensors capable of detecting gas concentrations have been known. For example, Patent Document 1 discloses a sensor that detects odor substances contained in the air when measuring the odor of the air.

[0004] Furthermore, when operating electronic devices, power may be supplied using a wiring plug connector such as a so-called electrical outlet. For example, Patent Document 2 discloses that an exhaust device is configured by providing an exhaust fan in an electrical outlet, thereby making the effort of processing a wall surface, etc., required for installing an exhaust device, common to both the electrical outlet and the exhaust device. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2018 / 061092 [Patent Document 2] JP 2017-219208 A Summary of the Invention

[0006] A gas detection device according to an embodiment includes: A first suction unit capable of suctioning a sample gas; an attachment plug to be inserted into a plug socket; A second suction portion capable of sucking in a purge gas from a hole penetrating the surface on which the plug receiver is installed; and a gas sensor that detects at least one of the type and concentration of gas contained in the sample gas based on the sample gas and the purge gas. The second suction section is capable of suctioning, as the purge gas, gas located in a second space separated by the surface from a first space in which the first suction section and the gas sensor are located. At least one of the first suction unit, the second suction unit, and the gas sensor is supplied with power via the attachment plug. [Brief description of the drawings]

[0007] [Figure 1] 1 is a diagram illustrating a schematic configuration of a gas detection device and a wiring plug connector according to an embodiment; [Diagram 2] 3 is a diagram illustrating a schematic configuration of a socket portion of a wire plug connector according to an embodiment of the present invention; FIG. [Diagram 3] 1 is a diagram illustrating a schematic configuration of a plug portion of a wired plug connector according to an embodiment of the present invention; [Figure 4] 1 is a diagram illustrating a schematic configuration of a plug portion of a wired plug connector according to an embodiment of the present invention; [Diagram 5] 1 is a diagram illustrating a schematic configuration of a plug portion of a wire insertion connector according to an embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] If there is a wire plug connector suitable for supplying power to a gas detection device, and a gas detection device suitable for connecting to the wire plug connector, the convenience of the gas detection device and the wire plug connector can be improved. An object of the present disclosure is to provide a gas detection device with improved convenience. According to one embodiment, it is possible to provide a gas detection device with improved convenience.

[0009] In the present disclosure, a wired plug connector may be a type of electrical wiring and may be a connector for supplying power to an electrical device. The wired plug connector may include at least one of an attachment plug and a plug receptacle. The wired plug connector enables electrical connection and disconnection by inserting and removing the attachment plug into and from the plug receptacle.

[0010] In the present disclosure, the wired plug connector includes at least one of a plug section including a plug and a socket section including a plug receptacle. In the present disclosure, the plug included in the plug section of the wired plug connector is described as being capable of being plugged into a plug receptacle included in the socket section of the wired plug connector. In the present disclosure, the wired plug connector, the plug, and the plug receptacle may be standardized in, for example, JIS C 8303-1993. In one embodiment, the plug of the wired plug connector may be, for example, a general household 100V parallel type outlet (2-pole outlet 15A 125V standardized in JIS C 8303). In one embodiment, the plug receptacle of the wired plug connector may be, for example, an outlet, a socket, a receptacle, or a so-called outlet. However, the plug of the wired plug connector and the plug receptacle of the wired plug connector according to one embodiment are not limited to those described above, and various configurations may be adopted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A gas detection device and a wiring plug connector according to an embodiment will be described below with reference to the drawings.

[0011] (Gas detector and wiring plug connector) Fig. 1 shows a gas detection device 1 including a plug portion 20 of a wire plug connector according to one embodiment, and a socket portion 40 of the wire plug connector according to one embodiment. Fig. 1 shows functional blocks of each element constituting gas detection device 1 according to one embodiment. Fig. 1 also shows a schematic cross section of each element with socket portion 40 at the center. Fig. 1 may show an example of a cross section of each element with socket portion 40 at the center, as viewed from above, for example.

[0012] As shown in FIG 1, gas detection device 1 includes gas suction unit 3, gas sensor 10, and plug unit 20. Also, as shown in FIG 1, plug unit 20 of the wiring plug connector includes attachment plug 22. Gas detection device 1 can be operated by being supplied with power from attachment plug 22 of plug unit 20. Furthermore, as shown in FIG 1, socket unit 40 of the wiring plug connector includes plug receptacle 42. Also, as shown in FIG 1, in socket unit 40 of the wiring plug connector, plug receptacle 42 may be installed on a wall surface (surface 60). Here, surface 60 may be, for example, the surface of a wall constituting a side surface of a room.

[0013] (Gas detection device) First, a gas detection device according to one embodiment will be described. Gas detection device 1 detects at least one of the type and concentration of gas contained in the sample gas by sucking in a sample gas and a purge gas. Gas detection device 1 can have various configurations depending on the required use, specifications, and the like. Below, a typical example of gas detection device 1 will be described, but gas detection device 1 is not limited to the following typical example.

[0014] As described above, gas detection device 1 includes gas suction unit 3, gas sensor 10, and plug unit 20. As shown in Fig. 1, gas suction unit 3 and gas sensor 10 are connected by gas introduction pipe 5.

[0015] The gas suction unit 3 draws in the sample gas, for example, in the direction of the arrow shown in Fig. 1. For this purpose, the gas suction unit 3 may have a gas suction hole or the like as appropriate. The gas suction unit 3 supplies the sample gas drawn in through the gas suction hole or the like to the gas sensor 10.

[0016] 1, the gas sensor 10 may include, for example, a gas chamber 12, a sensor unit 14, a power supply unit 16, and a pump 18. In one embodiment, the gas sensor 10 may omit some of the functional units shown in FIG 1, or may include functional units other than the functional units shown in FIG 1 as appropriate.

[0017] The gas chamber 12 is connected to the gas suction unit 3 through the gas introduction tube 5. Therefore, the sample gas sucked by the gas suction unit 3 through a gas suction hole or the like is supplied to the gas chamber 12 in the gas sensor 10. In addition, as described later, the gas chamber 12 is also connected to the tubular member 26. Therefore, the purge gas sucked through the tubular member 26 is also supplied to the gas chamber 12 in the gas sensor 10. As shown in FIG. 1, the tubular member 26 can suck the purge gas through a hole 62 penetrating the surface 60 of the wall on which the socket unit 40 is installed. Thus, in one embodiment, the tubular member 26 sucks the purge gas from the hole 62 penetrating the surface 60 on which the plug receiver 42 is installed.

[0018] The sensor unit 14 detects at least one of the type and concentration of the gas supplied to the gas chamber 12. For this reason, the sensor unit 14 may be configured to output a voltage corresponding to the concentration of a specific gas, for example. As described above, the gas sensor 10 can supply the sample gas and the purge gas to the gas chamber 12. For this reason, the sensor unit 14 can be refreshed using the purge gas when sensing the sample gas. In this way, the gas sensor 10 detects at least one of the type and concentration of the gas contained in the sample gas based on the sample gas sucked from the gas suction unit 3 and the purge gas sucked from the hole 62 through the tubular member 26. In addition, the sensor unit 14 can have various configurations depending on the required use and specifications. The sensor unit 14 itself can employ various sensors such as a conventional odor sensor or gas concentration sensor.

[0019] The power supply unit 16 supplies power for operating the entire gas detection device 1, including the gas sensor 10. The power supply unit 16 may be configured to receive power from outside the gas detection device 1. For example, the power supply unit 16 may receive power from an external AC power source using the attachment plug 22 of the plug unit 20. For this reason, as shown in FIG. 1 , in the plug unit 20, the attachment plug 22 may be connected to the power supply unit 16 of the gas sensor 10 via a cable 24. As described below, the attachment plug 22 is plugged into a plug receptacle 42 of the socket unit 40, thereby being able to receive power from the plug receptacle 42. Thus, in one embodiment, the attachment plug 22 is plugged into the plug receptacle 42.

[0020] 1, the cable 24 that supplies power to the gas sensor 10 may be partially bundled with the above-mentioned tubular member 26. In one embodiment, the cable 24 electrically connects the gas sensor 10 to the socket portion 40. In one embodiment, the tubular member 26 delivers purge gas from the socket portion 40 to the gas sensor 10. Therefore, by partially bundling (bundling) the cable 24 with the tubular member 26, it is possible to prevent the cables 24 and the tubular member 26 from becoming entangled with each other.

[0021] Power supply unit 16 may be configured to include, as appropriate, a converter that converts AC power received from an external AC power source into DC power, for example. Power supply unit 16 may also be equipped with a rechargeable battery. In this case, gas detection device 1 can charge the battery of power supply unit 16 by inserting attachment plug 22 into plug receptacle 42. Furthermore, gas detection device 1 can operate from the battery of power supply unit 16 even if attachment plug 22 is removed from plug receptacle 42 after the battery of power supply unit 16 has been charged.

[0022] The pump 18 draws the sample gas from the gas suction unit 3 through the gas introduction tube 5 into the gas chamber 12. Any pump may be used as the pump 18 as long as it can send gas from one side to the other. The pump 18 may be any pump, such as a diaphragm pump. The pump 18 may also draw the purge gas into the gas chamber 12 through a tubular member 26, as described below. The pump 18 may also be configured using a valve or the like. In one embodiment, one pump 18 may be used, or one or more pumps 18 may be used for each of the gas introduction tube 5 and the tubular member 26.

[0023] In this manner, gas detection device 1 may be configured to include, for example, gas suction unit 3, gas sensor 10, attachment plug 22, and tubular member 26. Furthermore, in gas detection device 1, attachment plug 22 is configured to receive power from plug receptacle 42 when attached plug 22 is inserted into plug receptacle 42. In addition to receiving such power, tubular member 26 is configured to be able to suck in purge gas from hole 62 when attachment plug 22 is inserted into plug receptacle 42 in gas detection device 1.

[0024] (Plug part) Next, the plug section according to one embodiment will be further described. As described above, the plug section 20 may be included in the gas detection device 1. Also, as described above, the plug section 20 is connected to a socket such as the socket section 40. Specifically, the attachment plug 22 in the plug section 20 is inserted into, for example, a plug receptacle 42 in the socket section 40. The attachment plug 22 in the plug section 20 may be inserted into a plug receptacle other than the plug receptacle 42 in the socket section 40. The plug section 20 can have various configurations depending on the required use and specifications. In the present disclosure, a typical example of the plug section 20 according to one embodiment will be described, but the plug section 20 according to one embodiment is not limited to the typical example in the present disclosure.

[0025] As shown in FIG. 1, the plug portion 20 may include an attachment plug 22, a cable 24, and a tubular member .

[0026] The attachment plug 22 may be inserted into the plug receptacle 42 in the socket portion 40 as described above. The attachment plug 22 may be of any of various types known in the art. For example, the attachment plug 22 may be one standardized in JIS C 8303-1993. For example, the attachment plug 22 may be a parallel type of general household 100V outlet (two-pole outlet 15A 125V standardized in JIS C 8303). However, the attachment plug 22 is not limited to the above-mentioned type, and may be another type of attachment plug.

[0027] As shown in FIG. 1, the tubular member 26 draws in the purge gas from the socket portion 40 through the hole 62. As described above, the purge gas drawn in through the tubular member 26 may be supplied to the gas chamber 12 in the gas sensor 10. The tubular member 26 may be made of various materials, such as synthetic resin. The tubular member 26 may be made of any material capable of drawing out the purge gas. As described below, the tubular member 26 can draw in the purge gas through the hole 62 penetrating the wall surface 60 on which the plug receiver 42 of the socket portion 40 is installed by being connected to or inserted into the hole 62. The tubular member 26 may be made of a material capable of bending and deforming in order to be connected to or inserted into the hole 62. Thus, in one embodiment, the tubular member 26 draws in the gas from the hole 62 penetrating the surface 60 on which the plug receiver 42 is installed.

[0028] In this manner, the wired insertion connector (plug portion 20) may be configured to include the attachment plug 22 and the tubular member 26. The plug portion 20 is configured such that, when the attachment plug 22 is inserted into the plug receptacle 42, the attachment plug 22 receives electric power from the plug receptacle 42. In addition to the supply of electric power, the plug portion 20 is configured such that the tubular member 26 can suck gas from the hole 62.

[0029] (Socket part) Next, a socket unit according to one embodiment will be described. As described above, a plug of an electronic device such as the gas detector 1 is connected to the socket unit 40. Specifically, for example, the attachment plug 22 in the plug unit 20 of the gas detector 1 is inserted into the plug receptacle 42 in the socket unit 40. An attachment plug of an electronic device other than the gas detector 1 may be inserted into the plug receptacle 42 in the socket unit 40. The socket unit 40 can have various configurations depending on the required use, specifications, and the like. Below, a typical example of the socket unit 40 according to one embodiment will be described, but the socket unit 40 is not limited to the typical example below.

[0030] As shown in Fig. 1, the socket portion 40 may include a plug receiver 42 and a hole 62. As shown in Fig. 1, the socket portion 40 may include a pump 44. As shown in Fig. 1, the socket portion 40 may include a cover plate 46.

[0031] As described above, the plug receptacle 42 of the socket unit 40 may be installed on a wall surface (surface 60). The surface 60 may be, for example, a surface of a wall constituting a side surface of a room. As shown in Fig. 1, the surface 60 may at least partially separate the space S1 and the space S2. Thus, in one embodiment, the wall surface (surface 60) on which the plug receptacle 42 is installed may at least partially separate the spaces that communicate with each other via the hole 62.

[0032] Here, space S1 may be, for example, an internal space of a room defined by surface 60 (a space where people or the like usually reside). In one embodiment, space S1 may be a space (such as a room) where gas detection device 1 is used. In this case, space S2 may be, for example, a space behind a wall that constitutes surface 60 (a space where people or the like usually do not reside). That is, in this case, space S2 may be a space formed between the wall that constitutes surface 60 and the outer wall of a building. In one embodiment, space S2 may be a space (such as a room) where gas detection device 1 is not used. In this way, the wall that constitutes surface 60 at least partially separates space S1 and space S2.

[0033] The attachment plug 22 of the plug section 20 may be inserted into the plug receptacle 42. Thus, in one embodiment, the attachment plug 22 is inserted into the plug receptacle 42. The plug receptacle 42 may be of any of various types known in the art. For example, the plug receptacle 42 may be one standardized in JIS C 8303-1993. However, the plug receptacle 42 is not limited to the above-mentioned type, and may be another type.

[0034] 1, the receptacle 42 receives power, for example from a grid. The receptacle 42 may receive power, for example from a power cable routed behind a wall. Such routing allows the receptacle 42 to provide power to the attachment plug 22 when the attachment plug 22 is inserted. The receptacle 42 may receive power from an external source, for example from a grid, in any configuration.

[0035] As shown in FIG. 1, the hole 62 penetrates a surface 60 constituted by a wall, for example. Here, the plug receiver 42 of the socket unit 40 is installed on the surface 60. Thus, in one embodiment, the hole 62 penetrates the surface 60 on which the plug receiver 42 is installed. The hole 62 does not necessarily have to penetrate the wall constituting the surface 60. For example, the hole 62 may penetrate the plug receiver 42 instead of directly penetrating the wall constituting the surface 60. In this case, the hole 62 also penetrates the surface 60 on which the plug receiver 42 is installed. As shown in FIG. 1, in the socket unit 40, the hole 62 may be configured to be connectable to or insertable into a guide tube such as the tubular member 26.

[0036] 1, the hole 62 to which an outlet pipe such as the tubular member 26 is connected or inserted can supply purge gas to the gas sensor 10 through the outlet pipe such as the tubular member 26. Various mechanisms may be adopted for the hole 62 in the socket portion 40 to outlet the purge gas.

[0037] For example, the gas present inside the housing of the socket unit 40 (for example, shown by a broken line in FIG. 1) may be led to an outlet pipe such as the tubular member 26 as a purge gas. Also, the outlet pipe such as the tubular member 26 may be configured to be led to the outside of the housing of the socket unit 40. In this case, the gas present outside the housing of the socket unit 40 may be led to an outlet pipe such as the tubular member 26 as a purge gas. Also, the gas present outside the housing of the socket unit 40 may be configured to be led to the inside of the housing of the socket unit 40. In this case, the gas present inside the housing of the socket unit 40 may be led to an outlet pipe such as the tubular member 26 as a purge gas. In short, the socket unit 40 may lead the gas present on the space S2 side to an outlet pipe such as the tubular member 26 as a purge gas.

[0038] In any of the above examples, the gas present on the space S2 side can be supplied to the space S1 side as a purge gas. The sample gas used for detection by the gas detection apparatus 1 is supplied from the space S1 side. As described above, the spaces S1 and S2 are at least partially separated. Therefore, the gas detection apparatus 1 according to one embodiment prevents the sample gas from mixing with the purge gas supplied to the gas detection apparatus 1. Therefore, the gas detection apparatus 1 according to one embodiment can satisfactorily detect at least one of the type and concentration of gas contained in the sample gas based on the sample gas and the purge gas.

[0039] The pump 44 delivers the purge gas to the tubular member 26. This allows the pump 44 to deliver the purge gas from the hole 62. Any pump may be used as the pump 44 as long as it can deliver gas from one side to the other. The pump 44 may be any pump, such as a diaphragm pump. In this way, the socket portion 40 according to one embodiment may include the pump 44 that delivers the gas from the hole 62.

[0040] Also, in one embodiment, the socket portion 40 may be omitted without including the pump 44. In this case, one or more pumps 18 of the gas sensor 10 may draw the purge gas into the tubular member 26. That is, the pump 18 may draw the purge gas into the gas chamber 12 through the tubular member 26. Thus, in one embodiment, the pump 18 may be provided to draw the gas from the hole 62. In this case, the pump 18 may be provided, for example, at the tip portion of the tubular member 26. Here, the tip portion of the tubular member 26 may be a portion connected to or inserted into the hole 62 of the tubular member 26, or a portion in the vicinity of the portion.

[0041] As shown in FIG. 1, the cover plate 46 may be attached to a wall or the like constituting the surface 60. By attaching the cover plate 46 to a wall or the like constituting the surface 60, the entire plug receiver 42 can be prevented from being exposed to the space S1 inside the room in which the gas detection device 1 is used. The cover plate 46 may be a member merely for design purposes. In one embodiment, the socket unit 40 may be omitted without including the cover plate 46. The cover plate 46 may be a member for fixing the plug receiver 42 to a wall or the like constituting the surface 60. That is, the plug receiver 42 may be configured to be fixed to the cover plate 46, and the cover plate 46 may be configured to be fixed to a wall or the like constituting the surface 60. In this case, it is not necessary to directly fix the plug receiver 42 to the wall or the like constituting the surface 60.

[0042] In this manner, the wired insertion connector (socket unit 40) may be configured to include the plug receptacle 42 and the hole 62. Moreover, the socket unit 40 according to one embodiment is configured to supply power from the plug receptacle 42 to the attachment plug 22 in a state in which the attachment plug 22 is inserted into the plug receptacle 42. In addition to supplying power in this manner, the socket unit 40 is configured to be able to extract gas from an extraction pipe connected to the hole 62 in a state in which the attachment plug 22 is inserted into the plug receptacle 42.

[0043] (Connection of wiring plug connector) Next, the connection between plug portion 20 of gas detection apparatus 1 and socket portion 40 of the wiring plug connector will be further described.

[0044] For example, assume that a user in space S1 is using gas detection device 1. When using gas detection device 1, the user inserts attachment plug 22 of plug portion 20 of gas detection device 1 into plug receptacle 42 of socket portion 40. This enables gas detection device 1 to receive power. Next, the user connects or inserts an outlet tube, such as tubular member 26, into hole 62 of socket portion 40. As described above, hole 62 may be configured to allow, for example, tubular member 26 to be connectable to or insertable into it.

[0045] Fig. 2 is a diagram showing a schematic external appearance of the socket unit 40 according to one embodiment. Fig. 2 is an enlarged view of the socket unit 40 shown in Fig. 1. Fig. 2 shows a state seen from a direction in which the plug unit 20 is inserted into the socket unit 40. That is, Fig. 2 shows a state seen from the space S1 side shown in Fig. 1.

[0046] 2 shows an example in which the cover plate 46 of the socket unit 40 is installed on a wall or the like that constitutes the surface 60. In addition, FIG. 2 shows a state in which a part of the plug receptacle 42 is exposed from the cover plate 46.

[0047] The socket unit 40 shown in Fig. 2 has two plug receptacles 42. In one embodiment, the socket unit 40 may have any number of plug receptacles 42, including one or more. Two attachment plugs 22 of the plug unit 20 as shown in Fig. 1 can be inserted into the plug receptacle 42 shown in Fig. 2.

[0048] The cover plate 46 of the socket portion 40 shown in FIG. 2 has cutouts formed therein that correspond to the holes 62. The upper hole 62A is positioned to correspond to the upper plug receptacle of the two plug receptacles 42. The lower hole 62B is positioned to correspond to the lower plug receptacle of the two plug receptacles 42.

[0049] For example, the tubular member 26 of the plug section 20A as shown in Fig. 3 may be inserted into the upper hole 62A shown in Fig. 2. Fig. 3 is a diagram showing a schematic configuration of the plug section 20A according to one embodiment. The plug section 20A shown in Fig. 3 includes an attachment plug 22, a cable 24, and a tubular member 26, similar to the plug section 20 shown in Fig. 1.

[0050] For example, when using gas detection device 1, a user may insert attachment plug 22 of plug portion 20A shown in Fig. 3 into the upper one of the two plug receptacles 42 of socket portion 40 shown in Fig. 2. Then, the user may insert the tip of a guide tube such as tubular member 26 of plug portion 20A shown in Fig. 3 into hole 62A of socket portion 40 shown in Fig. 2.

[0051] Thus, in one embodiment, the outlet pipe that outlets the gas from the hole 62 may be configured to be insertable into the hole 62. In one embodiment, the outlet pipe that outlets the gas from the hole 62 may be, for example, the tubular member 26. In this case, in one embodiment, the tubular member 26 may be configured to be insertable into the hole 62.

[0052] A connection terminal 64 attached to the tubular member 26 of the plug section 20B as shown in FIG. 4 may be connected to the lower hole 62B shown in FIG. 2. FIG. 4 is a diagram showing a schematic configuration of the plug section 20B. The plug section 20B shown in FIG. 4 includes an attachment plug 22, a cable 24, and a tubular member 26, similar to the plug section 20A shown in FIG. 3. The plug section 20B shown in FIG. 4 includes a connection terminal 64 at the tip of the tubular member 26, unlike the plug section 20A shown in FIG. 3. The connection terminal 64 may be any tube connector capable of connecting the tubular member 26 to the hole 62B. The connection terminal 64 may be any tube connector capable of connecting the ends of the tubular members 26 to each other.

[0053] For example, when using gas detection device 1, a user may insert attachment plug 22 of plug portion 20B shown in Fig. 4 into the lower of the two plug receptacles 42 of socket portion 40 shown in Fig. 2. Then, the user may connect connection terminal 64 provided on a lead-out tube such as tubular member 26 of plug portion 20B shown in Fig. 4 to hole 62B of socket portion 40 shown in Fig. 2. Figs. 2 and 4 show an example in which connection terminal 64 is provided at the tip end of tubular member 26. However, for example, the tip end of tubular member 26 shown in Fig. 4 may not be provided with connection terminal 64, and hole 62B shown in Fig. 2 may be provided with connection terminal 64.

[0054] When adopting a configuration in which the connection terminal 64 of the plug portion 20B shown in FIG. 4 is connected to the hole 62B of the socket portion 40 shown in FIG. 2, various configurations may be adopted for the back side of the hole 62B shown in FIG. 2, that is, the inside of the socket portion 40 shown in FIG. 1 (indicated by a broken line). For example, a configuration may be adopted in which nothing is provided on the back side of the hole 62 in the socket portion 40 shown in FIG. 1. In this case, the gas present in the inside of the socket portion 40 shown by the broken line can be led to the space S1 side through the hole 62. In addition, in this case, for example, the pump 44 may introduce the gas on the space S2 side into the inside of the socket portion 40 shown by the broken line. In addition, for example, in the socket portion 40 shown in FIG. 1, a tubular member or the like may be provided from the hole 62 to the outside of the socket portion 40 shown by the broken line. In this case, the gas present on the space S2 side can be led to the space S1 side through the hole 62.

[0055] Thus, in one embodiment, the tubular member 26 may include a connection terminal 64. In this case, in one embodiment, the connection terminal 64 may be configured to be connectable to the hole 62. Also, in one embodiment, the hole 62 may include a connection terminal 64. In this case, in one embodiment, the connection terminal 64 may be configured to be connectable to an outlet tube that draws gas from the hole 62.

[0056] 2 includes one hole 62A and one hole 62B. However, in one embodiment, the socket portion 40 may include any number of holes 62A and / or holes 62B.

[0057] As described above, plug unit 20 and socket unit 40 are capable of supplying power and also supplying purge gas to gas detection device 1. That is, plug unit 20 and / or socket unit 40 are suitable for supplying power to gas detection device 1. Also, gas detection device 1 is suitable for connection to plug unit 20 and / or socket unit 40. Furthermore, plug unit 20 and socket unit 40 are also capable of supplying gas to gas detection device 1. Therefore, plug unit 20 and socket unit 40, and gas detection device 1 can enhance convenience.

[0058] As described above, the plug portion 20 and the socket portion 40 can supply power and purge gas to the gas detection device 1. For this reason, as shown in Figures 1 to 4, the plug receptacle 42 of the socket portion 40 and the hole 62 into which the tubular member 26 is inserted or connected may be disposed relatively close to each other, for example, adjacent to each other. Thus, in one embodiment, the hole 62 may be located near the plug receptacle 42. Here, the vicinity of the plug receptacle 42 may be, for example, within the area where the cover plate 46 is located.

[0059] As described above, the attachment plug 22 of the plug section 20 is not limited to the configurations shown in Figures 1, 3, and 4, and various configurations may be adopted. Figure 5 is a diagram showing another example of the plug section 20. Figure 5 shows another example of the attachment plug 22 of the plug section 20, which has a different configuration from those shown in Figures 3 and 4.

[0060] The plug section 20C shown in Fig. 5 is the same as that shown in Fig. 3 in that it includes a cable 24 and a tubular member 26. In the plug section 20C shown in Fig. 5, the shape of the attachment plug 22 is different from that shown in Figs. 3 and 4.

[0061] The attachment plug 22 of the plug section 20C shown in Fig. 5 is provided with a plug receptacle 28 into which another attachment plug can be inserted. As shown in Fig. 5, for example, another attachment plug 82 can be inserted into the attachment plug 22 of the plug section 20C. The attachment plug 22 shown in Fig. 5 can supply at least a part of the power supplied by being inserted into the plug receptacle 42 of the socket section 40 shown in Fig. 2, for example, to the other attachment plug 82 inserted into the plug receptacle 28.

[0062] Thus, in one embodiment, the plug unit 20 may include a plug receptacle 28 into which an attachment plug 82 other than the attachment plug 22 is inserted. In this case, in one embodiment, the plug receptacle 28 into which the other attachment plug 82 is inserted may be configured to be able to supply the power received by the attachment plug 22 to the other attachment plug 82.

[0063] According to the plug section 20C shown in FIG. 5, even when the attachment plug 22 of the plug section 20C is inserted into, for example, the plug receptacle 42 of the socket section 40 shown in FIG. 2, the number of ports of the plug receptacle for supplying power is not substantially reduced.

[0064] As mentioned above, the power supply 16 of the gas sensor 10 may comprise a rechargeable battery. In this case, the gas sensor 10 may comprise a gas reservoir for the purge gas.

[0065] According to this configuration, by connecting plug portion 20 (attachment plug 22 and tubular member 26) of gas detection device 1 to socket portion 40, it is possible to charge the battery of power supply portion 16 and store the purge gas in the gas storage tank. After charging of the battery and storage of the purge gas are completed, gas detection device 1 can detect gas even if plug portion 20 of gas detection device 1 is disconnected from socket portion 40. In this case, gas detection device 1 can operate using the power charged in the battery even if plug portion 20 is not inserted into socket portion 40. Also, in this case, gas detection device 1 can supply the purge gas stored in the gas storage tank to gas chamber 12 even if tubular member 26 is not inserted into or connected to hole 62.

[0066] Therefore, according to the configuration described above, gas detection device 1 can detect gas even when it is taken to a place other than space S1. In this case, gas detection device 1 can also detect gas in a place where socket portion 40 is not provided.

[0067] Although the present disclosure has been described based on the drawings and examples, it should be noted that a person skilled in the art can easily make various modifications or corrections based on the present disclosure. Therefore, it should be noted that these modifications or corrections are included in the scope of the present disclosure. For example, the functions included in each functional unit can be rearranged so as not to be logically inconsistent. A plurality of functional units may be combined into one or divided. Each embodiment of the present disclosure described above is not limited to being implemented faithfully according to each of the embodiments described above, and may be implemented by combining each feature or omitting a part as appropriate. [Explanation of symbols]

[0068] 1 Gas detection equipment 3 Gas suction section 5 Gas introduction pipe 10 Gas Sensor 12 Gas chamber 14 Sensor section 16 Power supply section 18 Pump 20 Plug section 22 Plug 24 Cable 26 Tubular member 28 Plug holder 40 Socket part 42 Plug holder 44 Pump 46 Cover Plate 60 sides 62 holes 64 Connection terminal 82 Other plugs

Claims

1. A first suction unit capable of suctioning a sample gas; an attachment plug to be inserted into a plug socket; a second suction portion capable of sucking in a purge gas from a hole penetrating a surface on which the plug receiver is installed; a gas sensor that detects at least one of a type and a concentration of a gas contained in the sample gas based on the sample gas and the purge gas, the second suction unit is capable of suctioning, as the purge gas, gas located in a second space separated by the surface from a first space in which the first suction unit and the gas sensor are located, At least one of the first suction unit, the second suction unit, and the gas sensor is supplied with power via the attachment plug.

2. The second suction portion penetrates the wall on which the plug receiver is installed, 2. The gas detection device according to claim 1, wherein the second suction portion is capable of suctioning, as the purge gas, gas located in a second space separated by the wall from a first space in which the first suction portion and the gas sensor are located.

3. 3. The gas detection device according to claim 1, wherein the attachment plug receives electric power from the plug receptacle when the attachment plug is inserted into the plug receptacle, and the second suction portion is configured to be able to suck in purge gas from the second space.

4. The power supply cable extends from the plug. The gas detection device according to claim 1 , wherein the second suction portion and the power supply cable are partially bundled together.

5. The second suction section has a pump located in the first space, 5. The gas detection device according to claim 1, wherein the second suction section is capable of sucking gas located in the second space as the purge gas by means of the pump.

6. 6. The gas detection device according to claim 1, wherein the gas sensor is capable of detecting a type and a concentration of a gas contained in the sample gas.

7. The gas detection device according to claim 1 , wherein the second space is a space behind a wall that constitutes the surface, with respect to the first space.

8. The gas detection device according to claim 1 , wherein the second suction section has a purge gas storage tank capable of storing the purge gas.

9. 9. The gas detection device according to claim 8, wherein the gas sensor is supplied with the purge gas stored in the purge gas storage tank.

10. The gas detection device according to claim 8 , wherein the purge gas reservoir is located in the first space.

11. The gas detection device according to claim 1 , wherein the second suction portion penetrates the surface.

12. The gas detection device according to claim 1 , wherein a portion of the second suction portion is located in the second space.

13. a power supply unit electrically connected to the attachment plug; 13. The gas detection device according to claim 1, wherein the power supply unit supplies the power received from the attachment plug to at least one of the first suction unit, the second suction unit, and the gas sensor.

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