Subway train fire alarm detector

Abstract

The utility model discloses a subway train fire alarm detector, which comprises a shell main body, a protection limiting mechanism is arranged outside a power supply slot, the protection limiting mechanism comprises a baffle plate, and the baffle plate is rotatably arranged outside the shell main body through a rotating shaft; the positioning assembly is arranged in the baffle plate; and the limiting assembly is located in the shielding plate. According to the utility model, the arrangement mode that the shielding plate, the positioning assembly and the limiting assembly are matched is utilized, and the rotatable shielding plate can seal the power interface, so that the dustproof effect is achieved when the detection machine is not used, the positioning of the shielding plate can be relieved when the detection machine is used, and the shielding plate is rotated downwards; at the moment, the power line can be inserted into the power supply slot and limited through the limiting assembly, so that the connection stability of the power line connector and the power supply slot is improved, the situation that the detection machine stops running due to unstable connection of the power line connector is avoided, and the service life of the detection machine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field related to a detection machine housing, in particular to a subway train fire alarm detection machine. Background Art

[0002] The subway train fire alarm detector is a test equipment for fire alarm systems in rail trains, buses and other industries. It reasonably concentrates the tests of seven types of fire alarm controllers such as Auswertekarte 110 / 2, KFA2400, KFA2800, KFA6100, KFA6100+, SE-4000 and JMFC-CU01-SZ1, as well as some temperature and smoke sensors. The efficient simulation operation of the detector is of great help to the acceptance, fault repair, training and operation of the above-mentioned fire alarm controllers.

[0003] In daily use, the power cord connector in the power interface body of the detection machine can generally be directly unplugged for easy connection. However, when the power cord is pulled, the power cord connector is easy to fall off the power interface body of the detection machine, thereby stopping the power supply and causing the detection machine to stop running, causing unnecessary losses. Multiple sudden power outages and shutdowns will also reduce the service life of the detection machine. When the detection machine is not used for a long time, dust will enter the interior of the detection machine through the exposed power interface body of the detection machine, thereby affecting the use of the detection machine. Utility Model Content

[0004] The purpose of the utility model is to provide a subway train fire alarm detection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a subway train fire alarm detection device comprises a shell body, the outer wall of which is provided with a power supply slot;

[0006] A protective limiting mechanism is disposed outside the power slot, and the protective limiting mechanism includes:

[0007] A shielding plate, the shielding plate is rotatably arranged outside the shell body through a rotating shaft;

[0008] A positioning component, wherein the positioning component is arranged inside the shielding plate to adjust the position of the shielding plate at multiple points;

[0009] The limiting component is located inside the shielding plate to assist in fixing the power cord inserted into the power slot.

[0010] Preferably, the positioning component comprises:

[0011] A driving rod, wherein an adjusting slot is provided inside the shielding plate, and both ends of the driving rod are rotatably connected with the inner wall of the adjusting slot;

[0012] A moving block, wherein the driving rod and the moving block form a screw transmission so that the moving block slides inside the adjusting groove;

[0013] Connecting rods, one end of each of the connecting rods is fixedly connected to the moving block, and the other end of each of the connecting rods is slidably connected to the inner wall of the adjusting groove;

[0014] A cushion block, the other ends of the plurality of connecting rods are fixedly connected to the cushion block;

[0015] An L-shaped plate is fixedly connected to the outer wall of the shell body.

[0016] Preferably, a rotation groove is formed on the outer wall of the shielding plate, a rotating disk is rotatably arranged inside the rotation groove, and the rotating disk is fixedly connected to the driving rod.

[0017] Preferably, the limiting component comprises:

[0018] A limit plate, wherein a groove is provided inside the shielding plate, the limit plate is slidably interlaced with the inner cavity of the groove, and the cross section of the limit plate is in a concave shape;

[0019] A clamping rod, a through slot is provided on the limit plate, and a plurality of the clamping rods are slidably inserted and connected with the inner cavity of the through slot, and a slide slot is provided on both sides of the inner wall of the groove, and a plurality of clamping holes are provided inside the slide slot, and the clamping rods are slidably inserted and connected with the inner cavity of the clamping hole;

[0020] A compression spring, wherein both ends of the compression spring are respectively fixedly connected to a plurality of clamping rods.

[0021] Preferably, the outer walls of the clamping rods are fixedly connected with pull rods, the outer walls of the limiting plates are provided with pull grooves, and the plurality of pull rods are slidably and interlacedly connected with the inner cavities of the pull grooves.

[0022] Preferably, a rubber pad is fixedly connected to the outer wall of the cushion block, and an anti-slip texture is provided on the outer wall of the rubber pad.

[0023] Technical effects and advantages of the utility model:

[0024] The utility model utilizes a setting method in which a baffle plate, a positioning assembly and a limit assembly are coordinated. The rotatable baffle plate can be used to close the power interface when the positioning assembly fixes it upward, thereby playing a dust-proof role when the detection machine is not in use. At the same time, the baffle plate can be released when in use and rotated downward. At this time, the power cord can be inserted into the power slot and limited by the limit assembly, which increases the stability of the connection between the power cord connector and the power slot, avoids unstable connection of the power cord connector, causing the detection machine to stop running, and increases the service life of the detection machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0026] Figure 2 This is one of the schematic diagrams of the internal structure of the utility model.

[0027] Figure 3 This is the second schematic diagram of the side structure of the utility model.

[0028] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0029] Figure 5 This is a schematic diagram of the internal structure of the limiting component of the utility model from the front.

[0030] Figure 6 This is a schematic diagram of the circuit structure of the utility model.

[0031] In the figure: 1. Shell body; 2. Power supply slot; 3. Protective limit mechanism; 31. Shielding plate; 32. Positioning assembly; 321. Driving rod; 322. Moving block; 323. Connecting rod; 324. Pad block; 325. L-shaped plate; 33. Limit assembly; 331. Limit plate; 332. Clamping rod; 333. Compression spring; 4. Turntable; 5. Rubber pad. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The utility model provides Figure 1-6The subway train fire alarm detector shown in the figure comprises a housing body 1, the outer wall of which is provided with a power supply slot 2, which can be plugged into an external power line, so that the entire detector can be powered on for use;

[0034] Furthermore, a protective limiting mechanism 3 is provided on the outside of the power slot 2, and the protective limiting mechanism 3 includes: a baffle plate 31, a positioning component 32 and a limiting component 33. The baffle plate 31 is rotatably arranged on the outside of the shell body 1 through a rotating shaft. The power slot 2 can be shielded by the rotatable baffle plate 31 when the detection machine is not in use, thereby achieving a dust-proof effect; the positioning component 32 is arranged inside the baffle plate 31 to adjust the position of the baffle plate 31 at multiple points. The baffle plate 31 can be fixed in two vertical states through the positioning component 32, one facing upward to shield the power slot 2 from dust, and the other facing downward. The power slot 2 can be plugged in with an external power cord, so that the entire detection machine can be powered on for use; the limiting component 33 is located inside the baffle plate 31 to assist in fixing the power cord inserted into the power slot 2.

[0035] Furthermore, the positioning assembly 32 includes: a driving rod 321, a moving block 322, a connecting rod 323, a cushion block 324 and an L-shaped plate 325. An adjustment groove is opened inside the shielding plate 31, and both ends of the driving rod 321 are rotatably and interlacedly connected with the inner wall of the adjusting groove; the driving rod 321 and the moving block 322 form a screw transmission so that the moving block 322 slides inside the adjusting groove; one end of a plurality of connecting rods 323 is fixedly connected to the moving block 322, and the other ends of a plurality of connecting rods 323 are slidably and interlacedly connected with the inner wall of the adjusting groove; the other ends of a plurality of connecting rods 323 are fixedly connected to the cushion block 324; the L-shaped plate 325 is fixedly connected to the outer wall of the shell body 1, and by rotating the driving rod 321, the moving block 322 passes through the connecting rod 323 so that the cushion block 324 is inserted into the interior of the L-shaped plate 325. At this time, the shielding plate 31 can be in a vertically upward state, and the power slot 2 can be shielded and dust-proofed. A rotating groove is formed on the outer wall of the shielding plate 31, and a turntable 4 is rotatably arranged inside the rotating groove. The turntable 4 is fixedly connected to the driving rod 321. The driving rod 321 can be rotated by the turntable 4, and the moving direction of the cushion block 324 can be controlled by different rotating directions.

[0036] Furthermore, the outer wall of the cushion block 324 is fixedly connected with a rubber cushion 5, and the outer wall of the rubber cushion 5 is provided with an anti-slip texture. When the shielding plate 31 is rotated downward, the driving rod 321 is rotated by the turntable 4, so that the rubber cushion 5 gradually contacts the workbench surface along with the cushion block 324, thereby helping to improve the stability of the detection machine. When the staff operates the detection machine from the front, it will not be easy to accidentally touch the detection machine to cause displacement, resulting in detection deviation.

[0037] Furthermore, the limiting assembly 33 includes: a limiting plate 331, a clamping rod 332 and a compression spring 333. A groove is provided inside the shielding plate 31, and the limiting plate 331 is slidably connected with the inner cavity of the groove. The cross-section of the limiting plate 331 is concave in shape, and the concave limiting plate 331 can be inserted into the power cord and limit the power cord interface; a through groove is provided on the limiting plate 331, and multiple clamping rods 332 are slidably and interlacedly connected with the inner cavity of the through groove, and sliding grooves are provided on both sides of the inner wall of the groove, and multiple clamping holes are provided inside the sliding grooves, and the clamping rods 332 are slidably and interlacedly connected with the inner cavity of the clamping holes. The clamping rods 332 are affected by the shape of the limiting plate 331, so that they will not rotate when the clamping interface is formed with the clamping hole; the two ends of the compression spring 333 are respectively fixedly connected to the multiple clamping rods 332, and the compression spring 333 is always in a compressed state, so that a stable elastic force can be always provided to the clamping rod 332, so that the clamping rod 332 is always in an extended state, which is convenient for clamping with the clamping hole.

[0038] Furthermore, the outer wall of the clamping rod 332 is fixedly connected with a pull rod 334, and the outer wall of the limit plate 331 is provided with a pull groove, and multiple pull rods 334 are slidably and interlaced with the inner cavity of the pull groove. The clamping rod 332 can be pulled by the pull rod 334, thereby canceling the clamping state between the clamping rod 332 and the clamping hole, and can only slide inside the slide groove without falling off the limit plate 331, thereby facilitating the limit plate 331 to slide along the slide groove through the pulled clamping rod 332 and interlace with other clamping holes.

[0039] like Figure 6 As shown, this detector uses a 5V control power supply, K1 and K2 are the start and stop touch buttons for the control of the smoke generator, J1 starts, J2 stops, and J3 is the status indicator. T1 is a heating control relay, which can control the electric heating wire or high-frequency heater to quickly heat the smoke sheet to produce smoke. T2 is a blower control relay, which starts with T1 and stops after T1, and the time is adjustable. K3~K10 are the start and stop control buttons of four channels, using 2 logic chips to form an automatic holding circuit, and after current amplification, the corresponding relay is pushed. The relay control connects the capacitor or resistor through J7 and J9 to adapt to the smoke and temperature triggering of various fire alarm controllers, thereby simulating the working state, fault state, and fire alarm state of the fire alarm controller. J5, J8, and J9 are the fire alarm state indication interface circuit, and LS1 is the fire alarm fault alarm buzzer.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Subway train fire alarm detection machine, including: A housing body (1), wherein an outer wall of the housing body (1) is provided with a power supply slot (2); The invention is characterized in that: a protective limiting mechanism (3) is arranged outside the power supply slot (2), and the protective limiting mechanism (3) comprises: A shielding plate (31), wherein the shielding plate (31) is rotatably arranged outside the housing body (1) via a rotating shaft; A positioning component (32), wherein the positioning component (32) is arranged inside the shielding plate (31) to perform multi-point position adjustment on the shielding plate (31); A limiting component (33), wherein the limiting component (33) is located inside the shielding plate (31) to assist in fixing a power cord inserted into the power slot (2).

2. The subway train fire alarm detection device according to claim 1, characterized in that: The positioning assembly (32) comprises: A driving rod (321), wherein an adjustment slot is provided inside the shielding plate (31), and both ends of the driving rod (321) are rotatably interlaced with the inner wall of the adjustment slot; A moving block (322), wherein the driving rod (321) and the moving block (322) form a screw transmission so that the moving block (322) slides inside the adjusting groove; Connecting rods (323), one end of each of the connecting rods (323) being fixedly connected to the moving block (322), and the other end of each of the connecting rods (323) being slidably interlaced with the inner wall of the adjusting groove; A cushion block (324), the other ends of the plurality of connecting rods (323) are all fixedly connected to the cushion block (324); An L-shaped plate (325), wherein the L-shaped plate (325) is fixedly connected to the outer wall of the housing body (1).

3. The subway train fire alarm detection device according to claim 2, characterized in that: The outer wall of the shielding plate (31) is provided with a rotation groove, a rotating disk (4) is rotatably arranged inside the rotating groove, and the rotating disk (4) is fixedly connected to the driving rod (321).

4. The subway train fire alarm detection device according to claim 1, characterized in that: The limiting component (33) comprises: A limiting plate (331), wherein a groove is provided inside the shielding plate (31), the limiting plate (331) is slidably interlaced with the inner cavity of the groove, and the cross section of the limiting plate (331) is in a concave shape; A clamping rod (332), a through slot is provided on the limiting plate (331), and a plurality of the clamping rods (332) are slidably inserted and connected with the inner cavity of the through slot, and a slide slot is provided on both sides of the inner wall of the groove, and a plurality of clamping holes are provided inside the slide slot, and the clamping rods (332) are slidably inserted and connected with the inner cavity of the clamping hole; A compression spring (333), wherein both ends of the compression spring (333) are respectively fixedly connected to a plurality of clamping rods (332).

5. The subway train fire alarm detection device according to claim 4, characterized in that: The outer wall of the clamping rod (332) is fixedly connected with a pull rod (334), the outer wall of the limiting plate (331) is provided with a pull groove, and the plurality of pull rods (334) are slidably inserted and connected with the inner cavity of the pull groove.

6. The subway train fire alarm detection device according to claim 2, characterized in that: The outer wall of the cushion block (324) is fixedly connected to a rubber cushion (5), and the outer wall of the rubber cushion (5) is provided with an anti-slip texture.

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