Train emergency stop switch

Abstract

To provide a train emergency stop switch capable of suppressing incursion of water into a housing and preventing wetting of a substrate, an emergency stop button, a warning buzzer or the like.SOLUTION: This train emergency stop switch comprises: a housing 3 having a cylindrical wiring port 23 protruding from an outer wall; a substrate 5 which is provided inside the housing 3 and on which an electric component 45 is mounted; and a water introducing member 11 provided inside the housing 3, communicating at one end with the wiring port 23, and opened at the other end below the substrate 5. Thus, even when water enters through a cover cable 19 into the housing 3, the water flows through a conduit 57, and thus wetting of the substrate 5 by the water can be prevented.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a train emergency stop switch that prevents water from entering the housing and prevents water from getting into the circuit board, emergency stop button, alarm buzzer, etc. [Background technology]

[0002] Conventionally, emergency train stop switches for bringing a moving train to an emergency stop have been installed on pillars, walls, etc. of railway platforms (see, for example, Patent Document 1). Such emergency train stop switches have a cylindrical wiring port for introducing various wiring therein, and a protective tube is attached to this wiring port to protect the wiring. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-098766 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a train emergency stop switch that has a protective tube attached to the wiring port, when the lid is closed, the lid interferes with the protective tube, creating a gap between the storage body and the lid, which can allow water to enter the housing (storage body) through the gap.In addition, water can enter the housing along the wiring, causing the circuit board, emergency stop button, alarm buzzer, etc. inside the housing to become wet.

[0005] The present invention has been made in consideration of the above points, and aims to provide a train emergency stop switch that prevents water from entering the casing and prevents the circuit board, emergency stop button, alarm buzzer, etc. from getting wet. [Means for solving the problem]

[0006] In order to solve the above problem, the invention of claim 1 is a train emergency stop switch for reporting an emergency on a platform, characterized in that it comprises a housing having a cylindrical wiring port protruding from an outer wall, a board on which electrical components are mounted that is provided inside the housing, and a water-conducting member that is provided inside the housing, one end of which is connected to the wiring port and the other end of which opens below the board. The invention of claim 2 is characterized in that, in the train emergency stop switch of claim 1, the train emergency stop switch comprises a waterproof cap attached to the wiring port of the housing, the waterproof cap comprising a substantially cylindrical main body, an annular groove formed concentrically at one end of the main body into which the wiring port is inserted, and a wiring passage that penetrates the main body in the axial direction, the main body having a large diameter in the middle axial direction forming a step portion, a tapered portion that narrows in diameter towards one end, and an insertion portion at the other end that is inserted into a protective tube that covers the wiring. The invention according to claim 3 is characterized in that, in the train emergency stop switch of claim 1, the water guide member has a sealing member at one end thereof that contacts the inner surface of the upper outer wall of the housing. The invention of claim 4 is characterized in that, in the train emergency stop switch of claim 1, the wiring inserted into the housing from the wiring port passes through the water-guiding member, is extended below the board, is bent upward, and is connected to the electrical components of the board. The invention of claim 5 is characterized in that, in the train emergency stop switch of claim 1, the train emergency stop switch has a mounting plate located below the water-guiding member and provided inside the housing, and the mounting plate comprises a main body mounting portion having a substantially rectangular back plate, a top plate formed integrally with the upper end of the back plate, a bottom plate formed integrally with the lower end of the back plate, and a front plate formed integrally with the tip of the top plate and extending vertically, and a guide plate provided on the upper surface of the top plate and inclined downward from the front side to the back side of the housing. The invention of claim 6 is characterized in that, in the train emergency stop switch of claim 5, the housing has an outlet formed at its bottom for discharging water that has entered the housing, and a flow path is formed between the back wall of the housing and the back plate of the mounting panel for guiding the entered water to the drain outlet. [Effects of the Invention]

[0007] The train emergency stop switch according to the present invention can prevent water from entering the housing and can also prevent the circuit board, emergency stop button, alarm buzzer, etc. from getting wet. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic perspective view of a train emergency stop switch according to an embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a schematic side view of the train emergency stop switch shown in FIG. 1. [Figure 3] FIG. 2 is a schematic perspective view of the train emergency stop switch shown in FIG. 1 with the cover portion open. [Figure 4] FIG. 2 is a cross-sectional view of the train emergency stop switch shown in FIG. 1. [Figure 5] 5(a) and 5(b) are views of the mounting base shown in FIG. 3, in which (a) is a perspective view and (b) is a cross-sectional view taken along line AA shown in FIG. 5(a). [Figure 6] 6(a) and 6(b) are diagrams of the cap shown in FIG. 1, where (a) is a front view, (b) is a plan view, (c) is a bottom view, and (d) is a cross-sectional view taken along line BB shown in FIG. 6(b). DETAILED DESCRIPTION OF THE INVENTION

[0009] The configuration of a train emergency stop switch according to one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6. FIG. As shown in Figures 1 to 4, the train emergency stop switch 1 is used to notify train and station staff, etc. of an emergency situation that occurs on the station premises (platform), such as when a passenger falls from the platform or when there is an obstacle on the tracks, and is equipped with a housing 3, a circuit board 5 which is a variety of components housed inside the housing 3 to realize the function of the train emergency stop switch 1, an emergency stop button 7, an alarm buzzer 9, a water-conducting member 11, and a waterproof cap 13.

[0010] The housing 3 protects various components and includes a lid 15 and a housing main body 17. The lid 15 has a generally rectangular box shape when viewed from the front, with its rear side open. The housing main body 17 also has a generally rectangular box shape when viewed from the front, with the lid 15 closing the opening of the housing main body 17, making the housing 3 a generally rectangular parallelepiped. A cylindrical wiring port 23 protruding from the upper outer wall of the housing 3, specifically from the upper outer wall of the housing main body 17, is integrally formed in order to pass a cover cable 19 that covers multiple wiring 21 from the outside into the housing 3. The lid 15 and the housing main body 17 are attached to the housing main body 17 via an opening / closing mechanism 25, so that the lid 15 can be opened, closed, and detached from the housing main body 17.

[0011] The lid 15 includes a locking portion 31 and a button cover 33, and has a mounting hole 35 formed in the approximate center for mounting the button cover 33. The locking portion 31 is of a key-lock type that keeps the lid 15 closed. The button cover 33 covers the emergency stop button 7 housed in the housing main body 17, and is formed as a thin film, for example, from an elastic resin, so that the emergency stop button 7 can be operated from above the button cover 33. The button cover 33 is held to the lid 15 by a holder 37 (see FIG. 3).

[0012] The housing main body 17 houses the circuit board 5, the emergency stop button 7, the alarm buzzer 9, etc., and is provided with a plate-shaped mounting member 39. The plate-shaped mounting members 39 secure the train emergency stop switch 1 to the platform, and are attached to the upper and lower ends of the back surface of the housing main body 17, respectively, and are formed with two holes 41 for inserting fasteners such as bolts (not shown). The housing main body 17 is provided with a lock piece 43 that cooperates with the lock part 31 of the lid part 15 to keep the lid part 15 closed. The housing main body 17 also has a plurality of drainage holes 29 (see FIG. 3) at its bottom for draining water that has entered the housing 3.

[0013] 3 and 4, electrical components 45 such as electronic components 47 and terminal blocks 49 are mounted on the board 5, and the board 5 is detachably attached to the water guide member 11 with fasteners 51 such as screws. An external wiring 21 is connected to the terminal block 49 of the board 5. Specifically, the wiring 21 inserted into the housing 3 from the wiring port 23 passes through the water guide member 11, extends downwards on the board 5, and is bent upwards to be connected to the terminal block 49 of the board 5.

[0014] 3 and 4, the emergency stop button 7 and the alarm buzzer 9 are mounted on the mounting board 53 and fixed to the housing main body 17. The emergency stop button 7 is a button for starting the alarm by the alarm buzzer 9, and is pressed from the front side of the lid 15 via the button cover 33. The alarm buzzer 9 emits a sound to issue an alarm when an alarm is activated.

[0015] 3 and 4, the mounting plate 53 supports the emergency stop button 7 and the alarm buzzer 9. The mounting plate 53 is located below the water guide member 11 and is attached to the inner wall surface on the rear side of the main body 17 with fasteners 52, such as bolts. The mounting plate 53 includes a main body mounting portion 54 having a substantially rectangular back plate 54a, a top plate 54b integrally formed with the upper end of the back plate 54a, a bottom plate 54c integrally formed with the lower end of the back plate 54a, and a front plate 54d integrally formed with the leading end of the top plate 54b and extending vertically, and a guide plate 56 provided on the upper surface of the top plate 54b. The top plate 54b and the guide plate 56 are inclined downward from the front side to the rear side of the housing 3, i.e., from the opening side of the main body 17 to the rear side, so that water falling along the wiring 21 flows to the rear side of the main body 17. A flow path 58 for guiding water that has entered the housing 3 to the drain outlet 29 is formed between the back plate 54 a of the mounting board 53 and the back wall of the housing main body 17 .

[0016] As shown in Figures 4 and 5, the water guide member 11 supports the substrate 5 and also functions as a passageway for water entering through the wiring port 23. One end of the water guide member 11 is connected to the wiring port 23 and the other end is open below the substrate 5. The water guide member 11 is located in the upper part of the housing main body 17 and attached to the inner wall surface on the rear side of the housing main body 17. The water guide member 11 includes a base 55 and a water guide channel 57. The base 55 has a generally rectangular shape in rear view. Two upper corners are formed with holes 59 for inserting fasteners (not shown), such as bolts. Four cylindrical sections 61 are formed in two lower corners below the holes 59 and for supporting the substrate 5. Each cylindrical section 61 is formed with a fastening hole 63 for fastening to a fastener 51, such as a bolt. The base 55 has a tongue 65 extending from the center of its lower portion, and the tongue 65 is formed with a hole 69 for inserting a fastener 67, such as a bolt.

[0017] Water conduit 57 is a generally rectangular cylindrical passageway provided on the surface side of base 55 and extending vertically. Water conduit 57 is configured so that the flow path on the upper side widens toward one end (upward) and tapers toward the other end (downward) so that its upper opening covers the lower opening of wiring port 23 (see FIG. 3). Water conduit 57 is provided with a sealing member 71 made of elastic resin to seal the gap between its upper end and the inner surface of the upper outer wall of housing main body 17 (see FIG. 4).

[0018] As shown in FIGS. 4 and 6 , the waterproof cap 13 prevents water from entering the housing 3 and includes a main body 73, a wiring passage 75, and an annular groove 77. The main body 73 is generally cylindrical, with a large diameter at an axially intermediate portion forming a step 79 and a tapered portion 81 that tapers toward one end. The main body 73 also includes an insertion portion 83 extending from the intermediate portion toward the other end. The insertion portion 83 is inserted into the protective tube 27 that covers the cover cable 19 (wiring 21). The tapered portion 81 is angled so as not to interfere with the lid 15 when the lid 15 is closed. Two wiring passages 75 are formed to penetrate the main body 73 in the axial direction. The annular groove 77 is formed concentrically at one end of the main body 73 and extends from the one end to approximately the middle. Two annular protrusions 85 are formed on the outer periphery of the annular groove 77 to prevent the cable from slipping out of the wiring port 23 of the lid 15.

[0019] According to the train emergency stop switch 1 having the above configuration, the following effects can be obtained. In the train emergency stop switch 1, as shown in Fig. 3, the water conduit 57 of the water conduit member 11 covers the lower opening of the wiring port 23, and the water conduit 57 is located behind the board 5, so that even if water enters the housing 3 along the cover cable 19, it flows through the water conduit 57 and below the board 5, preventing the board 5 from getting wet. Furthermore, the wiring 21 passes through the water conduit member 11, is extended below the board 5, is bent upward and is connected to the terminal block 49 of the board 5, and water that flows down from the wiring 21 collects at the bent portion and falls off, preventing the board 5 from getting wet.

[0020] Furthermore, in the train emergency stop switch 1, the guide plate 56 of the mounting board 53 provided below the water guide member 11 is inclined downward from the opening side of the housing main body 17 toward the back side, so that water that drops from the wiring 21 flows to the back side of the housing main body 17 and is guided to a flow path 58 formed between the back plate 54a of the mounting board 53 and the back wall of the housing main body 17, thereby preventing the emergency stop button 7 and the alarm buzzer 9 from getting wet. Furthermore, the water that passes through the flow path 58 flows to the bottom of the housing main body 17 and is discharged from multiple drainage holes 29 formed in the bottom, thereby preventing water from pooling inside the housing 3.

[0021] The water guide member 11 is provided with a seal member 71 at the top of the water guide channel 57, so that the gap between the water guide channel 57 and the inner surface of the upper outer wall of the housing main body 17 can be sealed, thereby preventing water leakage.

[0022] The main body 73 of the waterproof cap 13 has a tapered portion 81 that narrows toward one end, so that when the lid portion 15 is closed, the lid portion 15 does not interfere with the tapered portion 81, so the lid portion 15 does not deform and no gap is formed between the lid portion 15 and the housing main body 17, preventing water from entering the housing 3.

[0023] The main body 73 of the waterproof cap 13 is provided with two wiring passages 75 formed to penetrate in the axial direction, so that when the cover cable 19 is passed through the wiring passages 75, the gap formed between them can be reduced, thereby preventing water from entering.

[0024] In the train emergency stop switch 1, the main body 73 of the waterproof cap 13 has two wiring passages 75 formed therein, but a plurality of wiring passages, such as three or four, may also be formed therein. [Explanation of symbols]

[0025] 1...train emergency stop switch, 3...casing, 5...board, 11...water guide member, 23...wiring port, 45...electrical component

Claims

1. A train emergency stop switch for reporting a platform emergency, a housing having a cylindrical wiring port protruding from an outer wall; a substrate on which electrical components are mounted, the substrate being provided inside the housing; A train emergency stop switch characterized by comprising: a water guide member provided inside the housing, one end of which communicates with the wiring port and the other end of which opens below the board.

2. The train emergency stop switch includes a waterproof cap attached to the wiring port of the housing, The waterproof cap comprises a substantially cylindrical main body, an annular groove formed concentrically at one end of the main body into which the wiring port is inserted, and a wiring passage that passes through the main body in the axial direction, 2. The train emergency stop switch according to claim 1, wherein the main body has a tapered portion with a large diameter at an axial middle portion forming a step portion, a tapered portion with a diameter decreasing toward one end portion, and an insertion portion at the other end portion to be inserted into a protective tube covering the wiring.

3. 2. The train emergency stop switch according to claim 1, wherein the water guide member has a seal member at one end thereof that contacts the inner surface of the upper outer wall of the housing.

4. The train emergency stop switch according to claim 1, characterized in that the wiring inserted into the housing from the wiring port passes through the water-guiding member, extends below the board, is bent upward, and is connected to the electrical components of the board.

5. The train emergency stop switch is located below the water guide member and has a mounting plate provided inside the housing, The train emergency stop switch of claim 1, characterized in that the mounting plate comprises a main body mounting portion having a substantially rectangular back plate, a top plate formed integrally with the upper end of the back plate, a bottom plate formed integrally with the lower end of the back plate, and a front plate formed integrally with the tip of the top plate and extending vertically, and a guide plate provided on the upper surface of the top plate and inclined downward from the front side to the back side of the housing.

6. The housing has a drain port formed at its bottom for draining water that has entered the housing, 6. The train emergency stop switch according to claim 5, wherein a flow path is formed between the rear wall of the housing and the rear plate of the mounting panel to guide infiltrating water to the drain outlet.

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