Mining anti-explosion electric heating fan

Abstract

The utility model relates to the technical field of electric heating fans, and discloses a mining anti-explosion electric heating fan which comprises a fan body, an air duct, a heating cavity and a U-shaped pipe, the fan body is fixedly connected with the heating cavity through the air duct, a fixing assembly is arranged in the heating cavity, a protection assembly is arranged on the outer side of the heating cavity, and the U-shaped pipe is fixedly connected with the fan body. The fixing assembly comprises a plurality of sets of U-shaped supporting frames, fixing screws firstly penetrate through the mounting holes, the U-shaped supporting frames are installed in the heating cavity at equal intervals, then the U-shaped pipes are arranged among the limiting sliding blocks, the limiting sliding blocks are sequentially locked through a plurality of locking bolts, the U-shaped pipes are fixed, the U-shaped pipes are evenly distributed, air can make full contact with the U-shaped pipes in the heating cavity, and the U-shaped pipes are evenly distributed in the heating cavity. More uniform heat exchange is achieved, it is ensured that the temperature of heated air is stable, if the number and positions of the U-shaped pipes need to be increased or decreased or changed, only the U-shaped supporting frame needs to be additionally arranged, and the fixing assembly provides stable supporting for the U-shaped pipes, so that the U-shaped pipes are kept stable during working, and shaking and displacement are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric fan heater, especially relates to a mine explosion -proof electric fan heater. BACKGROUND

[0002] In order to guarantee the safety and high efficiency of mine operation, the development of special mine explosion -proof electric fan heater is imminent, and the fan needs to have reliable explosion -proof performance, can be safely operated in the flammable and explosive mine environment, fundamentally eliminates the explosion risk caused by equipment, and at the same time, has good protection performance, effectively resists the erosion of humidity and dust, ensures the stable operation of equipment, in addition, it also needs to have flexible adjustment capacity to adapt to the complex and changeable working conditions in the mine and the heating demand of different areas, provides a safe and comfortable working environment for mine operation personnel, and promotes the smooth operation of mine exploitation.

[0003] The applicant finds that the Chinese patent discloses "a mine explosion -proof electric fan heater", and the publication (announcement) number is "CN222257017U", the patent mainly includes base, fan, air duct, box and mounting frame, adopts U-shaped electric heating pipe, makes the line distribution on the upper part of the box, the wiring is neat, reduces the installation frequency, facilitates disassembly and maintenance, and the wiring is convenient for disassembly and maintenance, but the U-shaped electric heating pipe in the above-mentioned prior art does not provide reliable support for the U-shaped electric heating pipe, it is difficult to make the U-shaped electric heating pipe keep stable position in the working process, is easy to shake or displace, causes the connecting part of the U-shaped electric heating pipe and other components to be loose, twisted or even broken, affects the normal operation of the whole fan, and therefore we provide a mine explosion -proof electric fan heater. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a mine explosion -proof electric fan heater to solve the problem that the U-shaped electric heating pipe in the above-mentioned prior art does not provide reliable support for the U-shaped electric heating pipe, it is difficult to make the U-shaped electric heating pipe keep stable position in the working process, is easy to shake or displace, causes the connecting part of the U-shaped electric heating pipe and other components to be loose, twisted or even broken, affects the normal operation of the whole fan.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mine explosion -proof electric fan heater, including fan body, air duct, heating cavity and U-shaped pipe, the fan body is fixedly connected with the air duct between heating cavity, the inside of heating cavity is equipped with fixed assembly, and the outside of heating cavity is equipped with protection assembly, the fixed assembly includes multiple U-shaped support frames, the U-shaped support frame is connected with the limiting sliding block through the limiting sliding slot, and a plurality of mounting holes that are equally spaced are formed in the surface of the U-shaped support frame, the protection assembly includes protection box, a plurality of evenly distributed fixed bases are fixedly installed between the inside bottom surface of the protection box and the outside bottom surface of the heating cavity.

[0006] As a preferred scheme, the plurality of groups of the U-shaped support frames are equidistantly distributed, the plurality of groups of the U-shaped support frames are fixedly installed on the inner wall of the heating cavity through the fixing screws passing through the mounting holes, the limiting sliding grooves are provided with two groups and are respectively provided on the two side surfaces of the U-shaped support frames, and the limiting sliding blocks are provided with two groups and are respectively slidingly connected to the interiors of the two groups of limiting sliding grooves.

[0007] As a preferred scheme, the opposite side surfaces of the two groups of limiting sliding blocks are both provided with semicircular grooves, the two groups of limiting sliding blocks are threadedly connected through the locking bolts, the U-shaped pipes are arranged between the two groups of limiting sliding blocks, and the limiting sliding blocks are provided with a plurality of groups and are equidistantly slidingly installed in the interiors of the limiting sliding grooves.

[0008] As a preferred scheme, the circumferential surfaces of the plurality of groups of U-shaped pipes are all fixedly installed with the electric heating wires, the top portions of the plurality of groups of U-shaped pipes are all fixedly installed with the electric connection rods, one end of the heating cavity away from the air duct is fixedly installed with an air outlet shell, the interior of the air outlet shell and the side close to the heating cavity are provided with an air outlet, and the interior of the air outlet shell is inserted with a dustproof plate.

[0009] As a preferred scheme, the bottom of the fan body is fixedly installed with a base, and the protective box is fixedly installed on the surface of the base, one end of the protective box away from the fan body is fixedly installed with a wind collecting box, and the two side inner walls of the protective box are both fixedly installed with a plurality of groups of elastic balls which are uniformly distributed.

[0010] As a preferred scheme, one end of the plurality of groups of elastic balls away from the inner wall of the protective box is in contact with the surface of the heating cavity, and the interiors of the plurality of groups of elastic balls are all fixedly installed with sound-absorbing cotton.

[0011] The technical effects and advantages of the utility model are as follows:

[0012] By setting the fixing assembly, the fixing screws pass through the mounting holes, a plurality of U-shaped support frames are equidistantly installed in the heating cavity, then the U-shaped pipes are arranged between the plurality of groups of limiting sliding blocks, and the plurality of locking bolts are used to lock the limiting sliding blocks in sequence to complete the fixing of the U-shaped pipes, the plurality of U-shaped pipes are uniformly distributed, air can be fully contacted with the U-shaped pipes in the heating cavity, more uniform heat exchange is realized, the air temperature after heating is stable, if the number and position of the U-shaped pipes need to be increased or changed, the U-shaped support frames can be additionally arranged, the fixing assembly provides stable support for the U-shaped pipes, the U-shaped pipes can be kept stable during work, and shaking and displacement are avoided.

[0013] By setting the protection assembly, the protection box is stably connected with the heating cavity through the bottom fixing base, and the plurality of elastic balls on the two sides of the protection box are in contact with the heating cavity, which can effectively avoid the direct collision of the heating cavity with external objects, the elastic balls are elastically deformed when colliding, and the collision energy is absorbed and dispersed, so that the impact force of the collision on the heating cavity is greatly reduced, and the risk of breakage is reduced, and meanwhile, the sound-absorbing cotton in the elastic ball can absorb and block part of the noise, reduce the noise propagation to the outside, and optimize the noise level of the working environment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a part of the utility model unrolled three-dimensional structure schematic view;

[0016] Figure 3 It is a front view cross-sectional structure schematic view of the utility model;

[0017] Figure 4 It is a heating cavity internal structure schematic view of the utility model;

[0018] Figure 5 It is a fixed assembly structure schematic view of the utility model one;

[0019] Figure 6 It is a fixed assembly structure schematic view of the utility model two;

[0020] Figure 7 It is a protection assembly structure schematic view of the utility model.

[0021] In the drawing: 1, fan body; 2, base; 3, air duct; 4, U-shaped pipe; 5, fixed assembly; 6, protection assembly; 7, air outlet shell; 8, air outlet; 9, dustproof plate; 10, heating wire; 11, heating cavity; 501, U-shaped support frame; 502, limiting sliding groove; 503, mounting hole; 504, limiting sliding block; 505, semicircular groove; 506, locking bolt; 601, protection box; 602, air collecting box; 603, elastic ball; 604, fixed base. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model. EMBODIMENT

[0023] Please refer to the drawings of the embodiments of the utility model Figure 1 -Figure 6 The utility model provides an anti -explosion electric heating fan for mine, including fan body 1, air duct 3, heating cavity 11 and U type pipe 4, fan body 1 with heating cavity 11 are fixedly connected through air duct 3, the inside of heating cavity 11 is equipped with fixed component 5, and the outside of heating cavity 11 is equipped with protection component 6, fixed component 5 includes multiple sets of U type support frame 501, U type support frame 501 is connected with limiting sliding groove 502 through limiting sliding block 504, and multiple mounting holes 503 that present equidistance distribution are seted up on the surface of U type support frame 501, multiple sets of U type support frame 501 present equidistance distribution, and multiple sets of U type support frame 501 are fixedly installed on the inner wall of heating cavity 11 through fixing screw and pass through mounting hole 503, limiting sliding groove 502 is seted up with two groups and is seted up on the both side surfaces of U type support frame 501 respectively, limiting sliding block 504 is provided with two groups and is slidably connected in the inside of two groups of limiting sliding groove 502 respectively, and the opposite side surface of two groups of limiting sliding block 504 is seted up with semicircular groove 505, and two groups of limiting sliding block 504 are connected through lock bolt 506 between screw threads, and U type pipe 4 is seted up between two groups of limiting sliding block 504, and limiting sliding block 504 is provided with multiple groups and is slidably installed in the inside of limiting sliding groove 502 with equidistance.

[0024] When two groups of limiting sliding block 504 are connected together through lock bolt 506, two semicircular grooves 505 form circular groove, facilitate the complete locking of U type pipe 4, and each U type pipe 4 is relatively independent, when failure occurs or needs maintenance, can be individually checked, repaired or replaced, will not affect the normal work of other U type pipe 4, reduce the maintenance cost and difficulty, and electric heating wire 10 is uniformly wound on the outer wall of U type pipe 4, and the contact area with U type pipe 4 is larger and more uniform, heat can be more evenly transmitted to each part of U type pipe 4, and the path of heat transmission from electric heating wire 10 to the outer wall of U type pipe 4 is relatively short and direct, reduces the loss and the possibility of uneven distribution of heat in the transmission process, can make the overall temperature of U type pipe 4 more balanced, and the setting of dustproof plate 9 can effectively prevent dust from entering heating cavity 11, and the dust on the surface of dustproof plate 9 can be taken out and cleaned in a plug-in manner.

[0025] Specifically, first, a plurality of U-shaped support frames 501 are installed equidistantly inside the heating cavity 11 by fixing screws through the mounting holes 503, then the U-shaped tubes 4 are placed between the multiple sets of limiting sliding blocks 504, and then the limiting sliding blocks 504 are locked in turn by the multiple locking bolts 506, completing the fixation of the U-shaped tubes 4. The uniform distribution of the multiple U-shaped tubes 4 can make the air in the heating cavity 11 more evenly contact the U-shaped tubes 4, thereby achieving more uniform heat exchange and making the temperature of the heated air more uniform and stable. At the same time, when it is necessary to increase or change the number and position of the U-shaped tubes 4, the number of U-shaped support frames 501 can be increased, facilitating the upgrading and modification of the system. The fixing assembly 5 provides reliable support for the U-shaped tubes 4, enabling the U-shaped tubes 4 to maintain a stable position during operation and reducing the likelihood of shaking or displacement. Embodiment

[0026] Please refer to the accompanying Figure 1 - the accompanying Figure 4 and the accompanying Figure 7 , and on the basis of Embodiment One, it is further obtained that the circumferential surfaces of the multiple sets of U-shaped tubes 4 are fixedly installed with electric heating wires 10, the tops of the multiple sets of U-shaped tubes 4 are fixedly installed with electric connection rods, one end of the heating cavity 11 away from the air duct 3 is fixedly installed with an air outlet shell 7, an air outlet 8 is formed in the inside of the air outlet shell 7 and close to one side of the heating cavity 11, a dustproof plate 9 is inserted into one end of the inside of the air outlet shell 7, the protection assembly 6 includes a protection box 601, multiple sets of evenly distributed fixed bases 604 are fixedly installed between the inside bottom surface of the protection box 601 and the outside bottom surface of the heating cavity 11, a base 2 is fixedly installed at the bottom of the fan body 1, and the protection box 601 is fixedly installed on the surface of the base 2, a wind collecting box 602 is fixedly installed at one end of the protection box 601 away from the fan body 1, multiple sets of evenly distributed elastic balls 603 are fixedly installed on the inner walls of both sides of the protection box 601, one end of the multiple sets of elastic balls 603 away from the inner walls of the protection box 601 is in contact with the surface of the heating cavity 11, and sound-absorbing cotton is fixedly installed in the inside of the multiple sets of elastic balls 603.

[0027] The protection box 601 is usually made of high-strength, corrosion-resistant metal materials, such as high-quality carbon steel or aluminum alloy. The shell has sufficient thickness and strength, and the joint surface adopts special sealing and fastening design, can withstand external force impact, the protection box 601 itself can play a certain heat insulation role, the existence of the elastic balls 603 can further increase the complexity of the air layer, reduce the conduction of heat through the inner wall of the protection box 601, improve the heat insulation performance, help to maintain the temperature stability in the heating cavity 11, reduce heat loss, improve energy utilization efficiency, and at the same time, can also avoid the surrounding environment temperature being too high. The protection box 601 and the outer wall of the heating cavity 11 are both provided with sealing pads.

[0028] Specific, first through the fixed base 604 at the bottom of the protective box 601 and heating cavity 11 fixed, while the plurality of elastic ball 603 on both sides of the protective box 601 and heating cavity 11 contact, the protective box 601 can avoid heating cavity 11 directly with the outside object collision, elastic ball 603 can be elastically deformed when the collision, absorbing and dispersing the collision energy, further reduce the impact of the collision on the heating cavity 11, reduce the heating cavity 11 due to collision and rupture, the sound absorbing cotton in the elastic ball 603 can absorb and block part of the noise, reduce the spread of noise to the outside world, reduce the noise level of the working environment, improve the working environment.

[0029] The utility model works: the utility model discloses a kind of mine explosion-proof electric heating fan, first, a plurality of U-shaped support frame 501 is installed at the inside of heating cavity 11 by fixed screw through mounting hole 503 at equal intervals, then U-shaped tube 4 is placed between multiple sets of limiting slide block 504, immediately locking limiting slide block 504 in turn by multiple locking bolts 506, the fixation of U-shaped tube 4 is completed, multiple U-shaped tube 4 evenly distributed can make air more evenly contact with U-shaped tube 4 in heating cavity 11, then, the fixed base 604 at the bottom of the protective box 601 and heating cavity 11 fixed, while the plurality of elastic ball 603 on both sides of the protective box 601 and heating cavity 11 contact, the fixed base 604 at the bottom of the protective box 601 is fixed on base 2, when working, fan body 1 blows air into heating cavity 11, air is evenly passed from the multiple U-shaped tube 4 wound with heating wire 10, the heat generated after heating wire 10 is electrified exchanges with passing cold air, to make the wind temperature of air outlet 8 rise, elastic ball 603 can be elastically deformed when the collision, absorbing and dispersing the collision energy, further reduce the impact of the collision on the heating cavity 11, reduce the heating cavity 11 due to collision and rupture, sound absorbing cotton in the elastic ball 603 can absorb and block part of the noise, reduce the spread of noise to the outside world, to this end, the whole process ends.

[0030] Finally, it should be noted that: the above only for preferred embodiment of the utility model has been described, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A mine-used explosion-proof electric heating fan, comprising a fan body (1), a wind tube (3), a heating cavity (11) and a U-shaped tube (4), characterized in that: The fan body (1) and the heating cavity (11) are fixedly connected through the air duct (3), the inside of the heating cavity (11) is provided with a fixing assembly (5), and the outside of the heating cavity (11) is provided with a protection assembly (6), the fixing assembly (5) comprises a plurality of U-shaped support frames (501), the U-shaped support frame (501) is connected with a limiting sliding block (504) through a limiting sliding groove (502), and a plurality of mounting holes (503) are arranged on the surface of the U-shaped support frame (501) at equal intervals, the protection assembly (6) comprises a protection box (601), and a plurality of uniformly distributed fixing bases (604) are fixedly installed between the inside bottom surface of the protection box (601) and the outside bottom surface of the heating cavity (11).

2. The explosion-proof electric air blower for mine according to claim 1, characterized in that: A plurality of U-shaped support frames (501) are arranged at equal intervals, a plurality of U-shaped support frames (501) are fixedly installed on the inner wall of the heating cavity (11) through fixing screws penetrating the mounting holes (503), the limiting sliding groove (502) is provided with two groups and is arranged on the two side surfaces of the U-shaped support frame (501), and the limiting sliding block (504) is provided with two groups and is slidingly connected to the inside of the two limiting sliding grooves (502).

3. The explosion-proof electric air blower for mine according to claim 1, characterized in that: The opposite side surfaces of the two limiting sliding blocks (504) are both provided with semicircular grooves (505), and the two limiting sliding blocks (504) are threadedly connected through locking bolts (506), the U-shaped tube (4) is arranged between the two limiting sliding blocks (504), and the limiting sliding block (504) is provided with a plurality of groups and is slidingly installed in the limiting sliding groove (502) at equal intervals.

4. The explosion-proof electric air blower for mine according to claim 1, characterized in that: The circumferential surface of the U-shaped tube (4) is fixedly installed with a plurality of electric heating wires (10), and the top of the U-shaped tube (4) is fixedly installed with a plurality of electric connection rods, one end of the heating cavity (11) away from the air duct (3) is fixedly installed with an air outlet shell (7), and the inside of the air outlet shell (7) and the side close to the heating cavity (11) are provided with an air outlet (8), and the inside of the air outlet shell (7) is inserted with a dustproof plate (9).

5. The explosion-proof electric air blower for mine according to claim 1, characterized in that: The bottom of the fan body (1) is fixedly installed with a base (2), and the protection box (601) is fixedly installed on the surface of the base (2), one end of the protection box (601) away from the fan body (1) is fixedly installed with a wind collecting box (602), and a plurality of uniformly distributed elastic balls (603) are fixedly installed on the inner walls of the two sides of the protection box (601).

6. A mine-used explosion-proof electric heater fan according to claim 5, characterized in that: One end of the plurality of elastic balls (603) away from the inner wall of the protection box (601) is in contact with the surface of the heating cavity (11), and the inside of the plurality of elastic balls (603) is fixedly installed with sound-absorbing cotton.

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