Background
With the continuous development of the society, traffic systems are becoming more and more perfect, monitoring equipment becomes an indispensable part of the existing traffic systems, and the monitoring equipment installed at traffic intersections can monitor the running conditions of vehicles in real time, so that the reasonable and efficient running of traffic is ensured.
The monitoring equipment for monitoring the traffic condition needs to continuously maintain a working state, so that in the using process, more heat is generated in the shell, the temperature in the shell is increased, the electrical elements of the monitoring equipment are easily damaged, and the service life of the monitoring equipment is shortened; besides, the monitoring equipment for traffic is located outdoors and in areas with more vehicles, the vehicles which are frequently coming and going can raise a large amount of dust, and therefore the surface of the transparent cover on the shell can be adhered with more dust frequently, and the shooting definition of the monitoring equipment is affected.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a dustproof heat-dissipation type monitor which can use thermal expansion liquid expansion as initial power to enable a sleeve to rotate in a reciprocating manner under the action of the gravity of a first sliding plug and a second sliding plug when the temperature in a shell is higher by arranging the first sliding plug, a second sliding plug, a fixing mechanism and an air guide tube, so that high-temperature gas in the shell is exhausted, external low-temperature gas is sucked in to achieve the effect of cooling and heat dissipation, meanwhile, the exhausted gas is sprayed on the outer surface of a transparent cover at a high flow speed, dust adhered to the outer surface of the transparent cover is removed, the transparent cover is kept clean, and the dust accumulation is avoided to reduce the definition of lens shooting.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dustproof heat dissipation type monitor comprises a rotating seat, a shell, a lens and a transparent cover, wherein the shell is installed below the rotating seat and is in a cylindrical shape, the lens and the transparent cover are fixedly installed on the inner wall of the shell, a sleeve is connected between the inner wall of the shell in a sealing and rotating mode and sleeved outside the lens, a first sliding groove and a second sliding groove are symmetrically formed in the side wall of the sleeve, a first sliding plug and a second sliding plug are connected in the first sliding groove and the second sliding groove in a sealing and sliding mode respectively, the first sliding plug and the second sliding plug are fixedly connected through a connecting rod in sealing and sliding connection with the wall body of the sleeve, the end portions of the first sliding groove and the second sliding groove are communicated with the interior of the sleeve, a check valve only allowing air to flow from the interior of the sleeve to the first sliding groove is installed at the communication position of the first sliding groove and the interior of the sleeve, a check valve only allowing air, the side wall of the shell is provided with an air outlet and an air inlet close to the upper end and the lower end of the side wall of the shell respectively, cooling fins are arranged in the air inlets respectively, and a fixing mechanism used for fixing the sleeve when the first sliding groove exhausts air is installed in the second sliding groove.
Preferably, the fixing mechanism comprises a fixing pin matched with the air inlet, and the fixing pin is arranged in the second sliding groove and is elastically connected with the side wall of the second sliding plug through a heat-conducting silica gel sheet.
Preferably, the gas outlet is round hole form, just gas outlet department intercommunication has the air duct, the end of giving vent to anger of air duct sets up in the surface upper end of translucent cover, just the end of giving vent to anger has the inclination that sets up towards the translucent cover surface.
The invention has the following beneficial effects:
1. by arranging the first sliding chute, the first sliding plug, the second sliding chute, the second sliding plug, the thermal expansion liquid and the radiating fin, when the temperature in the shell is higher, the thermal expansion liquid expands to push the first sliding plug and the second sliding plug to slide, high-temperature gas in the shell is pumped into the second sliding chute, the sleeve is driven to rotate anticlockwise to a position where an opening of the second sliding chute is communicated with the gas outlet, the temperature of the thermal expansion liquid is reduced and contracted under the action of the radiating fin, the thermal conductive silica gel sheet pushes the second sliding plug and the first sliding plug to slide upwards, and the high-temperature gas in the second sliding chute is discharged from the gas outlet, so that the radiating effect is achieved;
2. the first sliding plug slides upwards to suck external low-temperature gas into the first sliding groove, meanwhile, the first sliding plug and the second sliding plug slide upwards, the sleeve rotates clockwise by the lever principle to return to the original position, at the moment, the high temperature in the shell expands the thermal expansion liquid again to push the first sliding plug and the second sliding plug to slide leftwards, and the low-temperature gas in the first sliding groove is squeezed into the shell to achieve the cooling effect;
3. by arranging the fixing mechanism, the fixing pin can be pulled out of the air inlet by the second sliding plug under the action of negative pressure when the sleeve is in and only when the thermal expansion liquid is contracted to an initial state, so that the sleeve is not fixed, and the phenomenon that the sleeve starts to rotate when the thermal expansion liquid is just contracted to cause the deviation of the opening of the first chute and the air outlet and the deviation of the opening of the second chute and the air inlet, so that hot air in the first chute cannot be discharged and external low-temperature gas cannot be sucked into the second chute can be avoided;
4. through setting up the air duct, can make the air intermittent type nature in the second spout discharge from the gas outlet in the sleeve reciprocating rotation, the air is given vent to anger from the air duct via the air duct and is held with the blowout of great velocity of flow, blows to the translucent cover surface, gets rid of the dust of translucent cover surface adhesion.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-5, a dustproof heat dissipation monitor comprises a rotating base 1, a cylindrical housing 2 installed below the rotating base 1, a lens 3 and a transparent cover 4 fixedly installed on the inner wall of the housing 2, a sleeve 5 sleeved outside the lens 3 is connected between the inner walls of the housing 2 in a sealing and rotating manner, a first chute 9 and a second chute 12 are symmetrically arranged on the side wall of the sleeve 5, a first sliding plug 10 and a second sliding plug 13 are respectively connected in the first chute 9 and the second chute 12 in a sealing and sliding manner, the first sliding plug 10 and the second sliding plug 13 are fixedly connected through a connecting rod 11 in sealing and sliding connection with the wall body of the sleeve 5, the end parts of the first chute 9 and the second chute 12 are both communicated with the inside of the sleeve 5, a one-way valve only allowing air to flow from the inside of the sleeve 5 to the first chute 9 is installed at the communication position of the first chute 9 and the inside of the sleeve 5, a one-way valve only allowing air to flow from the second chute 12 to the inside of the sleeve 5 is installed at, the second chute 12 is filled with a thermal expansion fluid in a closed space between the second sliding plug 13 and the inner wall of the second chute 12.
The thermal expansion liquid is heated to expand to push the second sliding plug 13 to slide, the second sliding plug 13 drives the first sliding plug 10 to slide through the connecting rod, the first sliding plug and the second sliding plug slide in the same direction, so that the center of gravity of the sleeve 5 shifts, the sleeve 5 rotates anticlockwise to a position where the opening of the second sliding groove 12 is communicated with the opening of the air inlet 7, the opening of the first sliding groove 9 is communicated with the air outlet 6, in the process, the first sliding plug 10 slides to suck hot air inside the sleeve 5 into the first sliding groove 9, then the thermal expansion liquid contracts when meeting cold, the first sliding plug 10 slides in the reverse direction, and the hot air is discharged from the air outlet 6.
The side wall of the shell 2 is provided with an air outlet 6 and an air inlet 7 near the upper end and the lower end thereof respectively, and the air inlet 7 is internally provided with cooling fins 8.
Install the fixed establishment who is used for fixed sleeve 5 when first spout 9 exhausts in second spout 12, fixed establishment includes with air inlet 7 complex fixed pin 15, fixed pin 15 sets up in second spout 12 and through the lateral wall elastic connection of heat conduction silica gel piece 14 with second sliding plug 13, fixed pin 15 inserts only can form the fixed action to sleeve 5 in the air inlet 7, can not cause the jam of air inlet 7.
The thermal expansion liquid is heated to expand to push the second sliding plug 13 to slide, the second sliding plug 13 pushes the fixing pin 15 to slide at the same part, the fixing pin 15 cannot move when pushed to the inner wall of the shell 2, at the moment, the second sliding plug 13 continues to slide, the heat conduction silica gel sheet 14 is compressed, meanwhile, the sleeve 5 continues to rotate until the opening of the second sliding chute 12 is communicated with the air inlet 7, at the moment, under the elastic action of the heat conduction silica gel sheet 14, the fixing pin 15 is pushed into the air inlet 7 to form a fixing effect on the sleeve 5, and when and only when the thermal expansion liquid contracts to an initial state, the fixing pin 15 can be pulled out of the air inlet 7 by the second sliding plug 13 under the negative pressure action, so that the sleeve 5 is cancelled, the sleeve 5 can be prevented from rotating just when the thermal expansion liquid contracts, the opening of the first sliding chute 9 is deviated from the air outlet 6, the opening of the second sliding chute 12 is deviated from the air inlet 7, and the hot air in the first sliding chute 9 cannot be exhausted and the external low.
It should be noted that, the second sliding plug 13 and the fixing pin are both made of materials with good thermal conductivity, and the silicone carrier of the heat-conducting silicone sheet 14 determines its good elasticity and compression ratio, in the present invention, a spring can be replaced to play a role in elastically connecting the fixing pin 15 and the second sliding plug 13, and at the same time, the heat-conducting silicone sheet 14 has excellent thermal conductivity, and can increase the heat exchange area, and is commonly used in heat sinks and heat dissipation structural members.
It should be noted that the position of the link 11 is located behind the lens 3, which does not obstruct the image capturing of the lens 3, and the position of the fixing portion of the lens 3 connected to the inner wall of the housing 2 is located at the lower right end behind the lens 3, and the sleeve 5 only rotates clockwise and counterclockwise by less than ninety degrees, so that the fixing portion does not obstruct the rotation of the link 11.
In the invention, when the temperature in the shell 2 is higher, the thermal expansion liquid is heated to expand to push the second sliding plug 13 to slide left, the second sliding plug 13 drives the first sliding plug 10 to slide left through the connecting rod 11, the center of gravity of the sleeve 5 shifts left due to the left sliding of the first sliding plug 10 and the second sliding plug 13, the sleeve 5 rotates anticlockwise until the opening of the second sliding chute 12 is aligned with the air inlet 7, at the moment, the opening of the first sliding chute 9 is aligned with the air outlet 6, in the process, the sliding of the first sliding plug 10 sucks the high-temperature gas in the sleeve 5 into the first sliding chute 9, the sliding of the second sliding plug 13 can push the fixing pin 15 to slide at the same part, the fixing pin 15 cannot move when being pushed to the inner wall of the shell 2, at the moment, the second sliding plug 13 continues to slide to compress the heat-conducting silicone sheet 14, and at the moment when the opening of the second sliding chute 12 is communicated with the air inlet 7, the fixing pin 15 is pushed into the air inlet, a fixing effect is formed for the sleeve 5.
When the fixing pin 15 is inserted into the air inlet 7, the bottom of the fixing pin 15 is in direct contact with the radiating fin 8, the radiating fin 8 transmits external low temperature to thermal expansion liquid through the fixing pin 15, the heat-conducting silica gel sheet 14 and the second sliding plug 13 in sequence, the thermal expansion liquid can be rapidly cooled and contracted, negative pressure is formed in a sealed space in which the thermal expansion liquid is located in the process of being collected, external air pressure pushes the second sliding plug 13 to slide upwards, at the moment, the second sliding plug 13 pushes the first sliding plug 10 to slide upwards through the connecting rod, hot air in the first sliding chute 9 is discharged through the air outlet 6, and a radiating effect is achieved on monitoring equipment; and simultaneously sucks the outside cool air into the second chute 12.
In this process, the fixing pin 15 fixes the sleeve 5, and if and only when the thermal expansion liquid contracts to the initial state, the fixing pin 15 can be pulled out of the air inlet 7 by the second sliding plug 13, so as to cancel the fixation of the sleeve 5, and avoid the situation that the sleeve 5 starts to rotate when the thermal expansion liquid just contracts, so that the opening of the first chute 9 deviates from the air outlet 6 and the opening of the second chute 12 deviates from the air inlet 7, which results in that the hot air in the first chute 9 cannot be discharged and the external low-temperature gas cannot be sucked into the second chute 12.
After the fixed pin 15 is pulled out of the air inlet 7, the first sliding plug 10 and the second sliding plug 13 are restored to the initial positions in the respective sliding grooves, the sleeve 5 rotates reversely to the initial positions according to the lever principle, the thermal expansion liquid is heated and expanded again, the first sliding plug 10 and the second sliding plug 13 slide left again, cold air in the second sliding groove 12 is squeezed into the sleeve 5, and the cooling effect is achieved on the monitoring equipment; and then the above actions are repeated repeatedly until the temperature in the housing 2 is reduced to a normal state.
Example 2
Referring to fig. 6, the difference from embodiment 1 is that: the gas outlet 6 is in a circular hole shape, the gas outlet 6 is communicated with a gas guide tube 16, the gas outlet end of the gas guide tube 16 is arranged at the upper end of the outer surface of the transparent cover 4, and the gas outlet end is provided with an inclination angle arranged towards the outer surface of the transparent cover 4.
It should be noted that, in order to ensure that the air flowing out from the air outlet end has a certain flow velocity, the opening area of the air outlet end of the air duct 16 is much smaller than that of the air outlet 6.
When the sleeve 5 rotates back and forth as in embodiment 1, the air in the first chute 9 is intermittently discharged from the air outlet 6, the air is discharged from the air outlet end of the air guide tube 16 through the air guide tube 16, the opening area of the air outlet end is far smaller than that of the air outlet 6, the air can be ejected at a large flow speed, and the air outlet end has an inclination angle towards the outer surface of the transparent cover 4, so that the air outlet end intermittently ejects high-speed airflow, dust adhered to the outer surface of the transparent cover 4 is removed, dust adhered to the surface of the transparent cover 4 is prevented from being accumulated, and interference is caused to shooting of monitoring equipment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.