CN212461038U - Display screen box - Google Patents

Abstract

The utility model relates to a display screen box. Comprises a box body, the rear part of the box body is connected with a sealing door, a shutter is arranged on the sealing door, a protective cover is covered on the sealing door and comprises a vertical plate, an upper flanging and a lower flanging which are positioned at the upper end and the lower end of the vertical plate and bent towards the direction of the sealing door, the upper flanging and the lower flanging are respectively contacted with the upper end surface and the lower end surface of the sealing door, a plurality of supporting columns are arranged between the vertical plate and the sealing door so as to ensure a ventilation cavity between the sealing door and the vertical plate, the ventilation cavity is communicated along the left-right direction, the outer surfaces of the left side and the right side of the protective cover are respectively provided with an outward convex outer blocking edge, a plurality of guide grooves extending from the front end of the upper flanging to the lower end of the vertical plate are arranged between the two outer blocking edges on the outer surface of the protective cover, the front end of the upper flanging is provided with a sealing strip, and the upper flanging is abutted against the outer surface of the door frame through the sealing strip to be matched so that rainwater flowing downwards along the door frame flows to the guide grooves. Has good dustproof, rainproof and heat dispersion performances and low cost.

Description

Display screen box

Technical Field

The utility model relates to a display screen box.

Background

With the development of science and technology, traffic information display devices are widely used in the fields of express ways, highways, subways and the like to remind drivers or passengers, for example, to display speed measurement values, road information, front road condition information, subway vehicle running information and the like. The device generally comprises a display screen box body, a protection box body and a containing box body, wherein the protection box body is used as a base body of the display screen and is an electronic component matched with the back of the display screen.

When the display screen box is installed outdoors, the environment is severe, factors such as wind blowing, rain, sunshine, sand wind and the like need to be examined, if waterproof and dustproof work is not done, faults of internal components can be caused, and when the display screen box is exposed to the sun, if good cooling measures are not taken, the components in the box body generate heat, the internal temperature of the box body can reach 70 ℃, and under the condition, the display screen is difficult to work normally.

The traditional box body is generally provided with a heat dissipation opening on a sealing door, dust and rainwater can easily enter the heat dissipation opening and the gap between the sealing door and a door frame, and components can not be effectively protected.

Therefore, a novel box body which can well solve the problems of dust prevention, rain prevention and heat dissipation, and has simple structure and low cost so as to be popularized in a large range is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can fine solution dustproof, rain-proof and heat dissipation problem, and simple structure, low cost so that the display screen case of promoting on a large scale.

In order to achieve the above object, the utility model discloses a display screen box adopts following technical scheme: the utility model provides a display screen box includes the box, is connected with sealing door on the door frame at box rear portion, is equipped with the shutter on the sealing door, still covers on the sealing door and is equipped with the protection casing, and the protection casing includes riser and the last turn-ups and the turn-ups down that are located both ends about the riser and buckle towards the sealing door direction, goes up the turn-ups and turn-ups down respectively with the up end and the lower terminal surface contact cooperation of sealing door, is equipped with a plurality of support columns so that form the ventilation cavity that has certain interval between sealing door and the riser between riser and the sealing door, and the ventilation cavity link up along the left and right directions, the air outlet of shutter is located in the ventilation cavity, be equipped with outside bellied outer fender edge on the surface of the left and right sides of protection casing respectively, the protection casing surface is equipped with many guiding gutters that extend to the lower extreme of riser from the turn-ups front end between two outer fender edges, and upward turn-ups front end is equipped with the sealing A groove.

The beneficial effect of this scheme: (1) the protective cover can directly protect the inlet of the shutter, prevent the shutter window from being drenched with rain and also can block most of large-particle dust, and the large-particle dust can rebound after impacting on the protective cover and cannot directly enter the shutter; (2) the protective cover is arranged on the outer side of the shutter, and the protective cover is arranged on the outer side of the shutter and is used for sealing the air flow flowing through the shutter; (3) because the joint between the sealing door and the door frame forms a gap extending in the vertical direction, rainwater can flow into the box body along the gap in the traditional mode when flowing along the box body-the door frame, and the sealing strip is arranged at the front end of the upper flanging in the scheme of the application and is pressed on the door frame by the upper flanging, namely the gap between the sealing door and the door frame is filled by the sealing strip, so that the rainwater is prevented from flowing downwards along the gap; (4) on the basis of the advantage (3), in order to prevent rainwater from permeating into the box body when the rainwater stays at the sealing strip for a long time, the rainwater flowing to the protective cover is guided by arranging the guide groove, so that the rainwater can flow down as soon as possible; (5) because the left side and the right side of the ventilation cavity are communicated, the main purpose of arranging the outer blocking edge is to prevent rainwater on the protective cover from flowing into the ventilation cavity along the edges of the two sides of the protective cover so as to further improve the rainproof performance, and the protective cover is a secondary protection measure.

Further, the upper part of the sealing strip is provided with a triangular drainage structure with a small upper part and a large lower part. Considering that rainwater is likely to seep downwards from a gap between the sealing strip and the doorframe, the upper part of the sealing strip is designed into an inclined plane structure with a sharp upper end and a thick lower end, so that the rainwater is basically not blocked by the sealing strip but is guided to the protective cover by the sealing strip, and the protective performance is further improved.

Further, the cross section of the sealing strip is in an inverted 'F' shape. The opening part card that this structure can utilize F is at last turn-ups's front end department, makes things convenient for the fixed of sealing strip.

Furthermore, the upper surface of the upper flanging is in a slope structure with a high front end and a low rear end so as to guide the water flow to flow downwards. The purpose of this concern is to ensure that rain water flowing down the sealing strip is not stored at the mating gap of the sealing strip and the upturned edge to further prevent leakage.

Furthermore, support column one end is fixed at the sealing door surface, and the other end has the screw hole, be provided with the screw hole with each screw hole one-to-one on the riser, compress tightly the protection casing on each support column through the screw. Because want to enclose into the ventilation cavity between protection casing and the sealing door, just need set up the structure of support or isolation originally, must set up the support column promptly, this scheme is directly to utilize the support column as the bridge of connecting, through set up the screw hole on the support column to set up the screw hole on the riser, it is fixed for the sealing door with the protection casing through screw crimping mode.

Further, still be equipped with the lock on the sealing door, correspond on the riser and be provided with the hole of dodging the lock, the hole of dodging the hole is equipped with towards outside bellied interior fender edge in order to avoid along the rivers inflow of riser downflow in the hole of dodging along the department. To the sealing door that sets up the lock, in order to unblank the convenience, consequently set up on the riser and dodge the hole in order to vacate operating space, but nevertheless prevent again that the rainwater from keeping away in the hole flow direction ventilation cavity along seting up, consequently can solve this problem, simple structure through the mode that keeps off the edge in setting up.

Further, the depth of the diversion trench is less than 2 mm.

Furthermore, the inner surface of the sealing door is provided with a suction fan which draws air outwards corresponding to the shutter. So as to further improve the heat dissipation effect of the box body.

Drawings

Fig. 1 is a perspective partial exploded view of a display screen box (with shallow channels, not shown);

FIG. 2 is an enlarged view of a portion of FIG. 1 at J;

FIG. 3 is a side view of a display screen housing;

FIG. 4 is an enlarged view of a portion of FIG. 3 at H;

FIG. 5 is a perspective view of the sealing strip of FIG. 4;

FIG. 6 is a front view of the shield;

in the figure: 1-box body, 11-door frame, 2-sealing door, 21-louver, 22-support column, 23-door lock, 3-protective cover, 31-vertical plate, 32-upper flanging, 33-lower flanging, 34-outer baffle edge, 35-inner baffle edge, 36-avoiding hole, 37-diversion groove, 38-screw hole, 4-ventilation cavity, 5-sealing strip, 51-triangular drainage structure and 6-screw.

Detailed Description

The utility model relates to a display screen box, as shown in fig. 1-6, a sealing door 2 is connected on a door frame 11 at the rear part of a box body 1, a blind window 21 is arranged on the sealing door 2, the opening of the blind window 21 faces downwards, a protective cover 3 is covered on the sealing door 2, the protective cover 3 is a sheet metal part, the protective cover 3 comprises a vertical plate 31, an upper flanging 32 and a lower flanging 33 which are positioned at the upper end and the lower end of the vertical plate 31 and bent towards the sealing door 2, the upper flanging 32 and the lower flanging 33 are respectively contacted and matched with the upper end surface and the lower end surface of the sealing door 2, a plurality of support columns 22 are arranged between the vertical plate 31 and the sealing door 2 to form a ventilation cavity 4 with a certain interval between the sealing door 2 and the vertical plate 31, the ventilation cavity 4 is communicated along the left and right direction, an air outlet of the blind window 21 is positioned in the ventilation cavity 4, outward convex outer blocking, the outer retaining edges 34 are formed by bending the edges outwards, a plurality of diversion grooves 37 extending from the front ends of the upper flanges 32 to the lower ends of the vertical plates 31 are formed in the outer surface of the protective cover 3 between the two outer retaining edges 34, sealing strips 5 are arranged at the front ends of the upper flanges 32, and the upper flanges 32 are in abutting fit with the outer surface of the doorframe 11 through the sealing strips 5 so that rainwater flowing downwards along the doorframe 11 flows to the diversion grooves 37.

In this embodiment: the upper part of the sealing strip 5 is provided with a triangular drainage structure 51 with a small upper part and a large lower part. Considering that rainwater may seep down from a gap between the sealing strip 5 and the door frame 11, the upper portion of the sealing strip 5 is designed to be a slope structure with a sharp upper end and a thick lower end, so that the rainwater is basically not blocked by the sealing strip 5 but guided onto the protective cover 3 by the sealing strip 5, and the protective performance is further improved. The cross section of the sealing strip 5 is in an inverted 'F' shape. The structure can be clamped at the front end of the upper flanging 32 by utilizing the opening of the F, so that the sealing strip 5 is convenient to fix. The upper surface of the upturned edge 32 is of a slope structure with a high front end and a low rear end to guide the water flow downward. The purpose of this concern is to ensure that rain water flowing down from the sealing strip 5 is not stored at the fitting gap of the sealing strip 5 and the upper flange 32 to further prevent leakage. One end of each supporting column 22 is fixed on the outer surface of the sealing door 2, the other end of each supporting column 22 is provided with a threaded hole, the vertical plate 31 is provided with a screw hole 38 corresponding to each threaded hole one by one, and the protective cover 3 is tightly pressed on each supporting column 22 through the screws 6. In order to enclose the ventilation cavity 4 between the protective hood 3 and the sealing door 2, a supporting or isolating structure is required, namely, the supporting columns 22 must be arranged, the scheme is that the supporting columns 22 are directly used as a connected bridge, threaded holes are arranged on the supporting columns 22, screw holes 38 are arranged on the vertical plate 31, and the protective hood 3 is fixed relative to the sealing door 2 in a compression joint mode through screws 6. Still be equipped with lock 23 on the sealing door 2, correspond on the riser 31 and be provided with dodging the hole 36 of dodging lock 23, dodge the hole 36 along the department be equipped with towards outside bellied internal fender edge 35 in order to prevent along the rivers inflow of riser 31 downflow dodging in the hole 36 of dodging. To setting up sealing door 2 of lock 23, in order to unblank the convenience, consequently set up dodge hole 36 on riser 31 in order to vacate operating space, but in preventing the rainwater again along the 36 flow direction ventilation cavity 4 of dodging of seting up, consequently can solve this problem, simple structure through setting up the mode of interior fender edge 35. The depth of the diversion trench 37 is less than 2 mm. The inner surface of the sealing door 2 is provided with a suction fan for drawing air outwards corresponding to the shutter 21. So as to further improve the heat dissipation effect of the box body 1.

The protective cover 3 can directly protect the inlet of the shutter 21, prevent the opening of the shutter 21 from being drenched with rain, and also can block most of large-particle dust, and the large-particle dust can rebound after impacting on the protective cover 3 and cannot directly enter the shutter 21; the flat and long ventilation cavity 4 is defined between the protective cover 3 and the sealing door 2, the cavity ensures that the shutter 21 can normally radiate heat, even the airflow speed is accelerated to form negative pressure due to the arrangement of the protective cover 3, the protective cover has a certain outward suction effect, is similar to a chimney, and the protective cover 3 can enable the airflow passing through the protective cover to be combed to flow along the same direction, so that the radiating effect is better; because the joint between the sealing door 2 and the door frame 11 forms a gap extending in the vertical direction, in the traditional mode, when rainwater flows along the box body 1-the door frame 11, the rainwater flows into the box body 1 along the gap, and in the scheme of the application, the sealing strip 5 is arranged at the front end of the upper flanging 32, and the sealing strip 5 is pressed on the door frame 11 by the upper flanging 32, namely, the gap between the sealing door 2 and the door frame 11 is filled by the sealing strip 5, so that the rainwater is prevented from flowing downwards along the gap; on the basis of the above, in order to prevent rainwater from permeating into the box body 1 when staying at the sealing strip 5 for a long time, the rainwater flowing to the protective cover 3 is guided by arranging the guide groove 37, so that the rainwater can flow down as soon as possible; because the left and right sides of the ventilation cavity 4 are communicated, the main purpose of the outer blocking edge 34 is to prevent rainwater on the protection cover 3 from flowing into the ventilation cavity 4 along the edges of the two sides of the protection cover 3, so as to further improve the rainproof performance, and the protection device is a secondary protection measure.

Claims (8)

1. A display screen box comprises a box body, a sealing door is connected on a door frame at the rear part of the box body, a shutter is arranged on the sealing door, and the display screen box is characterized in that a protective cover is covered on the sealing door and comprises a vertical plate, an upper flanging and a lower flanging which are positioned at the upper end and the lower end of the vertical plate and bent towards the direction of the sealing door, the upper flanging and the lower flanging are respectively in contact fit with the upper end surface and the lower end surface of the sealing door, a plurality of supporting columns are arranged between the vertical plate and the sealing door so as to form a ventilation cavity with a certain interval between the sealing door and the vertical plate, the ventilation cavity is communicated along the left-right direction, an air outlet of the shutter is positioned in the ventilation cavity, outer baffle edges which protrude outwards are respectively arranged on the outer surfaces of the left side and the right side of the protective cover, a plurality of diversion grooves which extend from the front, the upper flanging is in abutting fit with the outer surface of the door frame through the sealing strip so that rainwater flowing down along the door frame flows to the diversion trench.

2. A display screen box according to claim 1, wherein the upper part of the sealing strip has a triangular drainage structure with a small upper part and a large lower part.

3. A display screen box according to claim 2, wherein the sealing strip is inverted "F" shaped in cross-section.

4. A display screen box according to any one of claims 1 to 3, wherein the upper surface of the upturned edge is of a slope structure with a high front end and a low rear end to guide the flow of water downward.

5. The display screen box of claim 1, wherein the support posts are fixed to the outer surface of the sealing door at one end and have threaded holes at the other end, and the riser is provided with screw holes corresponding to the threaded holes one by one, so that the protective cover is pressed against the support posts by screws.

6. The display screen box according to claim 1, wherein the sealing door is further provided with a door lock, the vertical plate is correspondingly provided with an avoiding hole for avoiding the door lock, and an inner blocking edge protruding towards the outside is arranged at the edge of the avoiding hole to prevent water flowing down along the vertical plate from flowing into the avoiding hole.

7. A display screen box according to claim 1, wherein the depth of the channels is less than 2 mm.

8. The display screen box of claim 1, wherein the inner surface of the sealing door is provided with a fan for drawing air outward corresponding to the louver.

Images