Waterproof and dustproof ventilation cabinet for railway signal equipment

Abstract

The utility model discloses a waterproof and dustproof ventilation cabinet for railway signal equipment, which relates to the technical field of railway signal equipment and comprises a cabinet, and the side surface of the cabinet is provided with a heat dissipation opening; according to the utility model, the cross section of each separation strip is wave-shaped, and the plurality of separation strips are arranged in parallel, when external dust-containing moisture enters from the air channel, the external dust-containing moisture continuously impacts the bending part of the wave-shaped separation strips, so that the dust-containing moisture continuously changes the direction when passing through the separation strips, and most of water vapor and dust impact the surfaces of the separation strips; when the air channel needs to be cleaned, the separating piece is lifted firstly to block the front opening and the rear opening of the separating window, then the piston strip is lifted to clean the air channel, cleaning is convenient, and a large amount of dust is prevented from escaping.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway signal equipment technical field especially relates to a railway signal equipment waterproof dustproof ventilating cabinet. BACKGROUND

[0002] The railway signal equipment waterproof dustproof ventilating cabinet is a special outdoor cabinet for providing physical protection and suitable operating environment for railway signal equipment such as track circuit transceiver unit, outdoor extension of signal centralized monitoring system, etc., which can ensure that the electronic equipment inside the cabinet is not affected by external rain, dust, corrosive gas, etc., and maintain stable temperature inside the cabinet through effective ventilation and heat dissipation means to prevent the equipment from failing or shortening the service life due to overheating.

[0003] In the prior art, in order to balance protection and heat dissipation, a dust filter screen is generally installed at the heat dissipation hole of the cabinet, however, when a large amount of dust accumulates on the filter screen, the dust is easily wetted and hardened into a thick mortar due to condensation caused by humid air such as rain season, fog or diurnal temperature difference, which not only blocks the ventilation pores and hinders heat dissipation, but also is difficult to clean due to its firm adhesion and viscous texture, and the dust is easily blown into the cabinet during cleaning. UTILITY MODEL CONTENTS

[0004] The utility model provides a railway signal equipment waterproof dustproof ventilating cabinet to solve the above technical problems.

[0005] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A railway signal equipment waterproof dustproof ventilating cabinet, comprising a cabinet, a heat dissipation opening is formed in the side surface of the cabinet;

[0007] A separation window is arranged on the outer wall of the heat dissipation opening in the side surface of the cabinet, the separation window comprises a window frame, and a plurality of separation strips are installed on the inner wall of the window frame in a straight line equidistant array;

[0008] The cross section of the separation strip is in a wave shape, the air duct is formed between two separation strips, and the extension line formed by the communication of the air inlet and air outlet of the air duct is vertically aligned with the heat dissipation opening in the side surface of the cabinet;

[0009] The cleaning piece comprises a piston strip, the shape of the piston strip is adapted to the air duct formed between two separation strips and is slidingly connected to the inner wall of the air duct, and the piston strip can be driven by the first displacement driving piece to rise and fall in a direction perpendicular to the ground.

[0010] Preferably, a slide rod is fixed to the top of the piston bar, and a top plate is mounted on the top of the slide rod. The top plate can be driven by a first displacement drive component.

[0011] Preferably, a separator is slidably connected to the outer wall of the window. The separator includes a first sealing plate and a second sealing plate slidably connected to the openings on the front and rear sides of the window frame, respectively. The bottom of the first sealing plate is connected to a base plate and the second sealing plate is connected through the base plate.

[0012] Preferably, the bottom of the second sealing plate is connected to a base plate, and the bottom of the base plate is provided with a second displacement driving member and can be driven by the second displacement driving member.

[0013] Preferably, a filter screen is installed on the inner wall of the heat dissipation vent, and the outer wall of the filter screen can be fitted with a piston strip.

[0014] Preferably, a side groove is provided at the bottom of the window frame, and a ash collection drawer is slidably connected to the inner side wall of the side groove.

[0015] Beneficial effects:

[0016] This application discloses a waterproof and dustproof ventilation cabinet for railway signaling equipment. By setting separation bars with a wavy cross-section and several bars arranged in parallel, when external dust-laden and humid air enters through the air duct, it continuously impacts the bends of the wavy separation bars, causing the dust-laden and humid air to constantly change direction as it passes through. Most of the water vapor and dust impacts the surface of the separation bars, physically blocking water vapor and dust and condensing water vapor. When it is necessary to clean the air duct, the separator is first raised to block the front and rear openings of the separation window, and then the piston bar is raised and lowered to clean the air duct. This facilitates cleaning and prevents a large amount of dust from escaping, solving the problems of poor moisture-proof performance and poor cleaning function of the heat dissipation area of ​​existing waterproof and dustproof ventilation cabinets for railway signaling equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a waterproof and dustproof ventilation cabinet for railway signaling equipment with its detachable window in the open state, as disclosed in this utility model.

[0019] Figure 2 This is an exploded view of a waterproof, dustproof, and ventilated railway signaling cabinet disclosed in this utility model after the cabinet is concealed.

[0020] Figure 3This is a schematic diagram of the cooperation between a single separator bar and a piston bar in a waterproof and dustproof ventilation cabinet for railway signaling equipment disclosed in this utility model;

[0021] Figure 4 This is a structural schematic diagram of the sealed state of the separation window of a waterproof and dustproof ventilation cabinet for railway signaling equipment disclosed in this utility model.

[0022] In the diagram: 1. Server rack; 2. Separation window; 3. Cleaning component; 4. Ash collection drawer; 5. Divider;

[0023] 201. Window frame; 202. Separation strip; 203. Side groove;

[0024] 301. Piston bar; 302. Slide rod; 303. Top plate; 304. First displacement drive component;

[0025] 501. First sealing plate; 502. Base plate; 503. Second sealing plate; 504. Second displacement drive component. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] A waterproof and dustproof ventilation cabinet for railway signaling equipment, combined with Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a cabinet 1, and the side of the cabinet 1 has a heat dissipation vent;

[0028] Separation window 2 is set on the outer wall of the heat dissipation vent on the side of the cabinet 1. Separation window 2 includes window frame 201. Several separation strips 202 are installed in a straight, equidistant array on the inner wall of window frame 201.

[0029] The separation strip 202 has a wavy cross-section. The extension line of the air passage formed by the connection between two separation strips 202 and the air inlet and outlet of the air passage is perpendicular to the heat dissipation vent on the side of the cabinet 1. That is, a wavy and tortuous air passage is formed along the direction perpendicular to the side of the cabinet 1 and pointing to the heat dissipation vent. Each pair of adjacent separation strips 202 forms an independent curved air passage. The center line of the air inlet and outlet of the air passage is perpendicular to the heat dissipation vent on the side of the cabinet 1, which facilitates the external airflow to pass through and enter the heat dissipation vent.

[0030] The cleaning component 3 includes a piston strip 301, whose shape is adapted to form an air passage between two separating strips 202 and is slidably connected to the inner wall of the air passage. It can be driven by the first displacement drive component 304 to rise and fall in a direction perpendicular to the ground. This application sets the separating strips 202 and designs the cross-section of the separating strips 202 to be wavy. Several separating strips 202 are arranged in parallel. When external dust-laden and humid air enters from the tortuous air passage, it continuously impacts the bends of the wavy separating strips 202, causing the dust-laden and humid air to continuously change direction as it passes through. Most of the water vapor and dust impact the surface of the separating strips 202, physically blocking water vapor and dust and condensing water vapor. When it is necessary to clean the air passage, the separator 5 is first raised to block the front and rear openings of the separating window 2, and then the piston strip 301 is raised and lowered to clean the air passage. This facilitates cleaning and prevents a large amount of dust from escaping, solving the problems of poor moisture-proof performance and poor cleaning function of the heat dissipation area of ​​the existing railway signal equipment waterproof and dustproof ventilation cabinet.

[0031] Specifically, the separation window 2 is fixed to the outer wall of the cabinet 1 by bolts, nuts and washers. The piston strip 301 is shaped to fit between the two separation strips 202 to form an air passage and is slidably connected to the inner wall of the air passage. It can be driven by the first displacement drive 304 to move up and down in a direction perpendicular to the ground, thereby scraping the two separation strips 202 up and down.

[0032] Preferably, a slide rod 302 is fixed to the top of the piston strip 301, and a top plate 303 is mounted on the top of the slide rod 302. The top plate 303 can be driven by the first displacement drive member 304, thereby driving the slide rod 302 and the piston strip 301 to move. Under the drive of the first displacement drive member 304, the piston strip 301 reciprocates up and down in the air passage in a direction perpendicular to the ground, so that the cleaning member 3 can scrape and clean the dust attached to the separating strip 202. The first displacement drive member 304 can be a linear electric cylinder, an electric push rod, or a lead screw assembly driven by an electric motor.

[0033] Preferably, a separator 5 is slidably connected to the outer wall of the separation window 2. The separator 5 includes a first sealing plate 501 and a second sealing plate 503 slidably connected to the openings on the front and rear sides of the window frame 201, respectively. The bottom of the first sealing plate 501 is connected to a bottom plate 502 and the second sealing plate 503 is connected through the bottom plate 502.

[0034] Preferably, the bottom of the second sealing plate 503 is connected to the bottom plate 502, and the bottom of the bottom plate 502 is equipped with a second displacement drive 504 and can be driven by the second displacement drive 504. The second displacement drive 504 drives the bottom plate 502, the first sealing plate 501 and the second sealing plate 503 to move together.

[0035] Specifically, a groove is provided on the corresponding location of the outer wall of the separation window 2, and sliding strips are provided on the sides of the first sealing plate 501 and the second sealing plate 503, which are inserted into the grooves. The bottom of the second displacement drive component 504 is installed on the outer wall of the cabinet 1, and can be a linear electric cylinder, an electric push rod, or a lead screw assembly driven by an electric motor. After the second displacement drive component 504 drives the separator 5 to rise, the first sealing plate 501 and the second sealing plate 503 can respectively seal the openings at both ends of the separation window 2, so as to block and cover the dust for cleaning.

[0036] Preferably, a filter screen is installed on the inner wall of the heat dissipation vent, and the outer wall of the filter screen can be matched with the piston strip 301, that is, the end of the piston strip 301 near the filter screen abuts against the filter screen, and the shape is adapted to the shape of the filter screen, so that the piston strip 301 can scrape off the dust on the filter screen when it moves.

[0037] Preferably, a side groove 203 is provided at the bottom of the window frame 201, and a dust collection tray 4 is slidably connected to the inner side wall of the side groove 203 for collecting dust scraped off by the piston strip 301.

[0038] The working principle of the device in this application is as follows:

[0039] When the equipment inside the cabinet 1 generates heat and needs to dissipate heat, there is a temperature difference between the inside and outside of the cabinet. External air enters the curved air passage formed by the wave-shaped separation strip 202 from the air inlet of the separation window 2.

[0040] When dusty and humid air passes through these wave-shaped air ducts, its flow direction is forced to change continuously and drastically. Since the mass and inertia of dust particles and water droplets are much greater than those of air molecules, they continuously collide with and adhere to the arc-shaped wall of the separation bar 202, achieving passive separation of gas and solid, and gas and liquid. This removes most of the dust and water vapor. The separated air then passes through the end of the air duct and is further filtered by the filter screen inside the heat dissipation vent of the cabinet 1 before entering the cabinet.

[0041] The large surface area of ​​the separation strip 202 is conducive to the condensation of water vapor in the air. The separation strip 202 is preferably made of metal. After the precipitated liquid water gathers on the surface of the separation strip 202, it flows down the wall under the action of gravity to the bottom of the window frame 201 and finally drips into the dust collection tray 4 at the bottom.

[0042] When the ventilation resistance increases or the predetermined cleaning cycle is reached, external power is supplied, and the first displacement drive component 304 and the second displacement drive component 504 are turned on through an external switch.

[0043] First, the second displacement drive 504 is activated, pushing the separator 5 upward until the first sealing plate 501 and the second sealing plate 503 seal the front and rear openings of the separation window 2, forming a relatively closed cleaning chamber.

[0044] Then, the first displacement drive 304 is activated, driving the piston strip 301 of the cleaning component 3 to move horizontally from top to bottom in the air passage, pushing the sludge down, so that the sludge falls into the sludge collection tray 4 under its own gravity. The edge of the piston strip 301 fits against the wavy surface of the separating strip 202, like a piston, scraping the sludge attached to the wall surface, greatly reducing the secondary pollution caused by dust escaping into the cabinet 1 or being blown outward during cleaning.

[0045] After the cleaning process is completed, the external power supply activates the second displacement drive component 504 via an external switch, driving the separator 5 to descend and restoring the unobstructed flow of the front and rear openings of the separation window 2. Maintenance personnel can periodically remove the dust collection tray 4 to clean up accumulated dust and condensate, making maintenance very convenient.

[0046] It should be noted that all parts of this invention that require connection to an external power source have an interface on the corresponding component. When power is required, the interface is connected to the portable power source.

[0047] The first displacement drive 304 and the second displacement drive 504 adopt existing products. Preferably, they can be linear electric cylinders, electric push rods or lead screw assemblies driven by electric motors (both the first displacement drive 304 and the second displacement drive 504 adopt existing products and are connected to external switches and external power sources).

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A waterproof and dustproof ventilation cabinet for railway signaling equipment, characterized in that, Includes a cabinet (1), wherein the cabinet (1) has a heat dissipation vent on its side; A separation window (2) is set on the outer wall of the heat dissipation vent on the side of the cabinet (1). The separation window (2) includes a window frame (201). Several separation strips (202) are installed in a straight line equidistant array on the inner wall of the window frame (201). The separation strip (202) has a wavy cross section. The extension line of the air passage formed by the two separation strips (202) and the air passage inlet and outlet is connected is perpendicularly aligned with the heat dissipation port on the side of the cabinet (1). The cleaning component (3) includes a piston strip (301) whose shape is adapted to form an air passage between the two separating strips (202) and is slidably connected to the inner wall of the air passage. It can be driven by the first displacement drive component (304) to move up and down in a direction perpendicular to the ground.

2. The waterproof and dustproof ventilation cabinet for railway signaling equipment according to claim 1, characterized in that, The piston bar (301) is fixed with a slide rod (302) at the top, and a top plate (303) is installed on the top of the slide rod (302). The top plate (303) can be driven by a first displacement drive (304).

3. A waterproof and dustproof ventilation cabinet for railway signaling equipment according to claim 2, characterized in that, The outer wall of the separation window (2) is slidably connected to a separator (5). The separator (5) includes a first sealing plate (501) and a second sealing plate (503) slidably connected to the openings on the front and rear sides of the window frame (201). The bottom of the first sealing plate (501) is connected to a base plate (502) and the second sealing plate (503) is connected through the base plate (502).

4. A waterproof and dustproof ventilation cabinet for railway signaling equipment according to claim 3, characterized in that, The bottom of the second sealing plate (503) is connected to a base plate (502), and the bottom of the base plate (502) is provided with a second displacement driving member (504) and can be driven by the second displacement driving member (504).

5. A waterproof and dustproof ventilation cabinet for railway signaling equipment according to any one of claims 1-4, characterized in that, A filter screen is installed on the inner wall of the heat dissipation vent, and the outer wall of the filter screen can be fitted with a piston strip (301).

6. A waterproof and dustproof ventilation cabinet for railway signaling equipment according to claim 5, characterized in that, The bottom of the window frame (201) is provided with a side groove (203), and a dust collection tray (4) is slidably connected to the inner side wall of the side groove (203).

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