Intrinsic safety type signal converter

Abstract

The utility model belongs to the technical field of signal converters, and particularly relates to an intrinsic safety type signal converter which comprises a first mounting cover. The inner side wall of the first mounting cover is fixedly connected with a pair of first fixing plates; a signal converter body is placed on the side wall of the first fixing plate; the side wall of the first fixing plate is connected with a second mounting cover; the first fixing plate is in bolted fit with the second mounting cover; an air bellow is arranged on the side wall of the second mounting cover; according to the step, the first mounting cover is connected with the second mounting cover, the fan is matched to blow air to the signal converter body, and an external air source can be used for blowing air to cool the signal converter body, so that the condition that the signal converter body is inconvenient to cool when running due to high temperature in the well is reduced; meanwhile, the first mounting cover is connected with the second mounting cover, so that the signal converter body can be wrapped, and the situation that dust and soil in a well fall on the surface of the signal converter body to cause pollution is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of signal converters, in particular to an intrinsically safe signal converter. Background Art

[0002] A signal converter is a device that converts electrical signals into digital signals using the principles of digital circuits. An intrinsically safe signal converter is a special type of signal converter that has safety features such as explosion-proof, anti-static, and spark-proof. It is usually used in hazardous environments such as coal mines, petrochemical plants, and other places.

[0003] When the existing intrinsically safe signal converter is used in a mine, the signal converter is usually installed underground, and then the computer on the well is connected to the signal converter interface in the well, so that data can be transmitted between the well and the underground. During long-term use observation, it is found that when the existing intrinsically safe signal converter is installed underground, the temperature in the well is usually higher than that on the ground or indoors. There is a problem that the converter will generate more heat during operation, which is not conducive to heat dissipation when the ambient temperature is high.

[0004] To this end, the utility model provides an intrinsically safe signal converter. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background technology, an intrinsically safe signal converter is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes an intrinsically safe signal converter, comprising a first mounting cover; a pair of first fixing plates are fixedly connected to the inner side wall of the first mounting cover; a signal converter body is placed on the side wall of the first fixing plate; the side wall of the first fixing plate is connected to a second mounting cover; the first fixing plate and the second mounting cover are bolted together; a bellows is provided on the side wall of the second mounting cover; a fan is fixedly connected to the inner side wall of the bellows; ventilation holes are provided on the side walls of the first mounting cover and the second mounting cover; in this step, the first mounting cover is connected to the second mounting cover, and the fan is cooperated to blow air to the signal converter body, and an external wind source can be used to blow air to dissipate heat to the signal converter body, so as to reduce the situation where the temperature in the well is high and the signal converter body is not convenient for heat dissipation during operation. At the same time, the first mounting cover connected to the second mounting cover can cover the signal converter body, so as to reduce the situation where dust and dirt in the well fall on the surface of the signal converter body and cause pollution.

[0007] Preferably, a second fixing plate is fixedly connected to the top of the first fixing plate; a third fixing plate is fixedly connected to the top of the first fixing plate; a screw is rotatably connected to the middle of the third fixing plate; in this step, by arranging the second fixing plate and the third fixing plate to cooperate with the screw, the signal converter body can be clamped and fixed by rotating the screw when the signal converter body is placed on the top of the first fixing plate, so as to improve the stability of the position of the signal converter body.

[0008] Preferably, a filter is provided on the side wall of the second mounting cover; the filter is detachably mounted; in this step, by providing the filter, the airflow can be filtered when the airflow enters the interior of the second mounting cover, so as to reduce the dust and other impurities contained in the airflow, which may cause accumulation and blockage as the airflow enters the inner wall, making it inconvenient to dissipate heat.

[0009] Preferably, a pair of slides are fixedly connected to the side walls of the second mounting cover; a brush plate is slidably connected to the inner wall of the slide; in this step, by setting a slide to connect the brush plate, the filter surface can be cleaned by pushing and pulling the brush plate to reduce the situation where the filtered dust remains on the filter surface and causes blockage affecting the airflow.

[0010] Preferably, the side wall of the bellows is fixedly connected to a fixed frame; the inner wall of the fixed frame is fixedly connected to a plurality of guide plates; this step can disperse the airflow entering from the bellows by setting a fixed frame to connect the plurality of guide plates, so as to increase the flow range of the airflow, increase the contact area between the airflow and the signal converter body, and improve the heat dissipation effect of the signal converter body.

[0011] Preferably, a pair of springs are fixedly connected to the top of the first mounting cover; a baffle is commonly fixedly connected to the top of the pair of springs; in this step, springs are provided to connect the first mounting cover and the baffle, so that when soil or stones fall, the springs contract to reduce the impact force on the top of the first mounting cover and the second mounting cover, thereby reducing damage caused by impact and playing a protective role.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The intrinsically safe signal converter described in the utility model, by setting a first mounting cover connected to a second mounting cover, cooperates with a fan to blow air to the signal converter body, and can use an external wind source to blow air to the signal converter body to dissipate heat, so as to reduce the situation that the temperature in the well is high and the signal converter body is not convenient for heat dissipation during operation. At the same time, the first mounting cover connected to the second mounting cover can cover the signal converter body, reducing the dust and dirt in the well falling on the surface of the signal converter body to cause pollution;

[0014] 2. The intrinsically safe signal converter described in the utility model, by setting a second fixing plate and a third fixing plate in cooperation with a screw, can clamp and fix the signal converter body by rotating the screw when the signal converter body is placed on top of the first fixing plate, so as to improve the stability of the position of the signal converter body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a stereogram in the utility model.

[0017] Figure 2 It is the front view in the utility model.

[0018] Figure 3 It is a cross-sectional view of the present invention.

[0019] Figure 4 It is a schematic diagram of the guide plate structure in the utility model.

[0020] Legend:

[0021] 1. First mounting cover; 11. First fixing plate; 12. Signal converter body; 13. Second mounting cover; 14. Bellows; 15. Fan; 16. Ventilation hole; 2. Second fixing plate; 21. Third fixing plate; 22. Screw; 3. Filter; 4. Slide; 41. Brush plate; 5. Fixing frame; 51. Guide plate; 6. Spring; 61. Baffle; 7. Rubber pad. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] Specific examples are given below.

[0024] like Figures 1 to 3As shown, an intrinsically safe signal converter described in an embodiment of the utility model comprises a first mounting cover 1; a pair of first fixing plates 11 are fixedly connected to the inner side wall of the first mounting cover 1; a signal converter body 12 is placed on the side wall of the first fixing plate 11; a second mounting cover 13 is connected to the side wall of the first fixing plate 11; the first fixing plate 11 and the second mounting cover 13 are bolted together; a bellows 14 is provided on the side wall of the second mounting cover 13; a fan 15 is fixedly connected to the inner side wall of the bellows 14; ventilation holes 16 are provided on the side walls of the first mounting cover 1 and the second mounting cover 13; during operation, when the signal converter body 12 is used in a mine, the signal converter body 12 is placed on the top of the first fixing plate 11, and then the first mounting cover 1 and the second mounting cover 13 are connected. The signal converter body 12 is connected by bolts, and then the fan 15 is started to blow air to the signal converter body 12. At this time, the airflow will pass through the signal converter body 12 and then flow out from the ventilation hole 16. When the airflow passes through the signal converter body 12 and then flows out from the ventilation hole 16, the signal converter body 12 can be cooled. In this step, the first mounting cover 1 is connected to the second mounting cover 13, and the fan 15 is used to blow air to the signal converter body 12. An external wind source can be used to blow air to dissipate heat to the signal converter body 12 to reduce the situation where the signal converter body 12 is not easy to dissipate heat during operation due to the high temperature in the well. At the same time, the first mounting cover 1 is connected to the second mounting cover 13 to cover the signal converter body 12, thereby reducing the dust and dirt in the well from falling on the surface of the signal converter body 12 to cause pollution.

[0025] like Figure 3 As shown, a second fixing plate 2 is fixedly connected to the top of the first fixing plate 11; a third fixing plate 21 is fixedly connected to the top of the first fixing plate 11; a screw rod 22 is rotatably connected to the middle of the third fixing plate 21; during operation, when the signal converter body 12 is placed on the top of the first fixing plate 11, the signal converter body 12 is placed between the second fixing plate 2 and the third fixing plate 21, so that one side of the signal converter body 12 contacts the second fixing plate 2, and then the screw rod 22 can be rotated to approach the surface of the signal converter body 12, and when the end of the screw rod 22 contacts the signal converter body 12, it can be clamped and fixed. In this step, by setting the second fixing plate 2 and the third fixing plate 21 to cooperate with the screw rod 22, the signal converter body 12 can be clamped and fixed by rotating the screw rod 22 when the signal converter body 12 is placed on the top of the first fixing plate 11, so as to improve the stability of the position of the signal converter body 12.

[0026] like Figure 1As shown, a filter 3 is provided on the side wall of the second mounting cover 13; the filter 3 is a detachable installation setting; during operation, when the fan 15 drives the airflow from the outside to the inside of the second mounting cover 13, the airflow will pass through the filter 3. At this time, the filter 3 will filter the passing airflow and filter out the dust and impurities contained in the airflow. In this step, by setting the filter 3, the airflow can be filtered when the airflow enters the inside of the second mounting cover 13, so as to reduce the dust and other impurities contained in the airflow, which will accumulate and block the airflow as the airflow enters the inner wall, making it inconvenient to dissipate heat.

[0027] like Figure 2 As shown, a pair of slides 4 are fixedly connected to the side walls of the second mounting cover 13; a brush plate 41 is slidably connected to the inner wall of the slide 4; during operation, the brush plate 41 can be pushed and pulled to slide in the slide 4, and at this time, the brush plate 41 is in contact with the surface of the filter 3, and can clean the surface of the filter 3 while moving, and sweep away the dust adhering to the surface of the filter 3 after filtering. In this step, by setting the slide 4 to connect the brush plate 41, the surface of the filter 3 can be cleaned by pushing and pulling the brush plate 41, so as to reduce the situation where the dust after filtering remains on the surface of the filter 3 and causes blockage affecting the airflow entering.

[0028] like Figure 4 As shown, the side wall of the bellows 14 is fixedly connected to a fixed frame 5; the inner wall of the fixed frame 5 is fixedly connected to a plurality of guide plates 51; during operation, when the airflow enters the interior from the bellows 14, it will pass through the guide plates 51. At this time, the guide plates 51 are inclined and symmetrical on both sides, which can disperse the passing airflow and change the flow direction of the airflow. In this step, by setting a fixed frame 5 to connect a plurality of guide plates 51, the airflow entering from the bellows 14 can be dispersed to increase the flow range of the airflow, increase the contact area between the airflow and the signal converter body 12, and improve the heat dissipation effect of the signal converter body 12.

[0029] like Figure 1 As shown, a pair of springs 6 are fixedly connected to the top of the first mounting cover 1; a baffle 61 is commonly fixedly connected to the top of the pair of springs 6; during operation, when clods of earth or rocks in the mine fall close to the top of the first mounting cover 1, they will contact the baffle 61. At this time, the spring 6 will contract to cushion the clods of earth or rocks in contact with the baffle 61. In this step, the spring 6 is arranged to connect the first mounting cover 1 and the baffle 61. When clods of earth or rocks fall, the spring 6 contracts to reduce the impact force on the top of the first mounting cover 1 and the second mounting cover 13, thereby reducing the damage caused by the impact and playing a protective role.

[0030] like Figure 3As shown, the end of the third fixing plate 21 is fixedly connected with a rubber pad 7; during operation, when the end of the screw rod 22 is close to the surface of the signal converter body 12, the rubber pad 7 connected to the end of the screw rod 22 will contact the surface of the signal converter body 12. In this step, by arranging the rubber pad 7 to connect the screw rod 22, when the screw rod 22 clamps and fixes the signal converter body 12, the damage caused by the extrusion and friction between the end of the screw rod 22 and the surface of the signal converter body 12 can be reduced, thereby playing a protective role.

[0031] Working principle: When the signal converter body 12 is used in a mine, the signal converter body 12 is placed on the top of the first fixing plate 11, and then the first mounting cover 1 is connected to the second mounting cover 13 by bolts, and then the fan 15 is started to blow air to the signal converter body 12. At this time, the airflow will pass through the signal converter body 12 and then flow out from the ventilation hole 16. When the airflow passes through the signal converter body 12 and then flows out from the ventilation hole 16, the signal converter body 12 can be heat-dissipated. When the signal converter body 12 is placed on the top of the first fixing plate 11, the signal converter body 12 is placed between the second fixing plate 2 and the third fixing plate 21, so that one side of the signal converter body 12 is in contact with the second fixing plate 2, and then the screw 22 can be rotated to get close to the surface of the signal converter body 12. When the end of the screw 22 is in contact with the signal converter body 12, the signal converter body 12 is moved to the third fixing plate 21. After contacting the device body 12, it can be clamped and fixed. When the fan 15 drives the airflow from the outside to the inside of the second mounting cover 13, the airflow will pass through the filter 3. At this time, the filter 3 will filter the passing airflow and filter out the dust and impurities contained in the airflow. The brush plate 41 can be pushed and pulled to make the brush plate 41 slide in the slide 4. At this time, the brush plate 41 contacts the surface of the filter 3, and the surface of the filter 3 can be cleaned during movement to sweep away the dust adhering to the surface of the filter 3 after filtering. When the airflow enters the interior from the bellows 14, it will pass through the guide plate 51. At this time, the guide plate 51 is an inclined structure and symmetrical on both sides, which can disperse the passing airflow and change the flow direction of the airflow. When soil or stones in the mine fall close to the top of the first mounting cover 1, they will contact the baffle 61. At this time, the spring 6 will contract to buffer the soil or stones in contact with the baffle 61.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An intrinsically safe signal converter, comprising a first mounting cover (1); characterized in that: A pair of first fixing plates (11) are fixedly connected to the inner side wall of the first mounting cover (1); a signal converter body (12) is placed on the side wall of the first fixing plate (11); a second mounting cover (13) is connected to the side wall of the first fixing plate (11); the first fixing plate (11) and the second mounting cover (13) are bolted together; a bellows (14) is provided on the side wall of the second mounting cover (13); a fan (15) is fixedly connected to the inner side wall of the bellows (14); and ventilation holes (16) are provided on the side walls of both the first mounting cover (1) and the second mounting cover (13).

2. The intrinsically safe signal converter according to claim 1, characterized in that: The top of the first fixing plate (11) is fixedly connected to a second fixing plate (2); the top of the first fixing plate (11) is fixedly connected to a third fixing plate (21); and the middle of the third fixing plate (21) is rotatably connected to a screw rod (22).

3. The intrinsically safe signal converter according to claim 2, characterized in that: A filter screen (3) is provided on the side wall of the second mounting cover (13); the filter screen (3) is detachably mounted.

4. The intrinsically safe signal converter according to claim 3, characterized in that: A pair of slideways (4) are fixedly connected to the side walls of the second mounting cover (13); and a brush plate (41) is slidably connected to the inner side walls of the slideways (4).

5. The intrinsically safe signal converter according to claim 4, characterized in that: A fixing frame (5) is fixedly connected to the side wall of the bellows (14); and a plurality of guide plates (51) are fixedly connected to the inner side wall of the fixing frame (5).

6. The intrinsically safe signal converter according to claim 5, characterized in that: A pair of springs (6) are fixedly connected to the top of the first mounting cover (1); a baffle (61) is commonly fixedly connected to the top of the pair of springs (6).

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