Jet fan convenient to overhaul and used for municipal tunnel

Abstract

The utility model relates to the technical field of jet fans, in particular to a municipal tunnel jet fan convenient to overhaul, which comprises a mounting table and a fan shell, a worm gear ring is coaxially fixed at one end of a threaded lead screw, a worm is rotatably connected in the mounting table, a positioning piece is fixedly connected on the inner side of a limiting seat, and a positioning groove is formed in the positioning piece. And a spring cushion is arranged on the inner side of the limiting seat. According to the municipal tunnel jet fan convenient to overhaul, a rotating rod synchronously drives two worms to rotate through two belt wheels, worm gear rings on threaded lead screws are in meshing transmission through the worms, so that the threaded lead screws are controlled to rotate synchronously, and the threaded lead screws drive two limiting seats to move oppositely or oppositely through sliding table blocks; the outer side of the fan shell is rapidly attached and fixed through cooperation of a spring cushion and a positioning piece, so that disassembly, assembly and overhaul are convenient, the spring cushion is designed to be attached to the outer portion of the fan shell to be a heat conduction silicone grease piece, and auxiliary heat dissipation of the fan shell is facilitated through cooperation of a ventilation groove formed in a limiting base.

Description

TECHNICAL FIELD

[0001] The utility model relates to jet fan technical field, concretely is a kind of jet fan for municipal tunnel with convenient overhaul. BACKGROUND

[0002] Jet fan is a kind of special axial fan, mainly used in longitudinal ventilation system of highway, railway and subway, provides all thrust, it can also be used in sensitive parts in semi-transverse ventilation system or transverse ventilation system, such as the entrance and exit of municipal tunnel, plays the role of inducing airflow or smoke exhaust.

[0003] According to the utility model patent with Chinese patent publication No.

[0004] But the convenient overhaul noise reduction type jet fan is not convenient to the whole wind tube structure dismounting opening, when the fan whole is disassembled and overhauled, there is certain inconvenience, so the whole disassembly effect needs to be further improved, so a kind of jet fan for municipal tunnel with convenient overhaul is proposed. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a kind of jet fan for municipal tunnel with convenient overhaul, with the advantages of convenient disassembly and repair, solve the problem of certain inconvenience of existing jet fan in fan whole disassembly and repair in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of jet fan for municipal tunnel with convenient overhaul, including installation platform and the fan shell of setting in installation platform bottom, the inside of installation platform is provided with adjusting docking structure;

[0007] The adjusting docking structure includes screw rod rotationally connected in the inside of installation platform, one end of the screw rod is coaxially fixed with worm wheel ring, the inside of installation platform is rotationally connected with worm, the inside bottom of installation platform is slidably connected with limit seat, the inside of limit seat is fixedly connected with positioning sheet, the inside of limit seat is provided with spring pad, the inside of limit seat is fixedly connected with dust filter screen.

[0008] Further, the inside of installation platform is provided with two cavities, the number of screw rod and worm wheel ring is four, four screw rods are respectively located in the inside of two cavities, the number of worm is two, four worm wheel rings are respectively located at one end of four screw rods towards worm, and respectively engaged with the outside of two worms.

[0009] Further, the front end of the two worms is coaxially fixedly connected with a belt pulley, the two belt pulleys are connected through a belt drive, the front surface of the mounting table is rotatably connected with a rotating rod, and the rear end of the rotating rod is fixedly connected with the front end of one of the belt pulleys.

[0010] Further, the two threaded lead screws are threadedly connected with the outer portions of the other two threaded lead screws, and the number of the limiting seats is two and each is connected with the bottom of a sliding table block.

[0011] Further, the front surface of the fan shell is provided with a plurality of screw holes, the positioning piece is connected with the screw holes through a bolt structure, the spring pad comprises a spring group fixed on the inner side of the limiting seat, and the spring group is fixedly connected with a heat-conducting silicone grease sheet on one side.

[0012] Further, the heat-conducting silicone grease sheet is provided with an internal thread structure on the side facing the fan shell, the interiors of the two limiting seats are each provided with a ventilation groove in a through structure, the number of the dust filter screens is two and each is located in the interior of a ventilation groove, the front and rear sides of the mounting table are each fixedly connected with a connecting piece, and the interior of the connecting piece is threadedly connected with a screw structure.

[0013] Beneficial effects

[0014] Compared with the prior art, the technical scheme has the following beneficial effects:

[0015] 1. The municipal tunnel jet flow fan convenient to overhaul, the rotating rod drives the two worms to rotate synchronously through the two belt pulleys, the worm gear engages the worm gear ring on the threaded lead screw, thereby controlling the synchronous rotation of the threaded lead screw, the threaded lead screw drives the two limiting seats to move relatively or away from each other through the sliding table block, and the spring pad and the positioning piece are quickly attached and fixed to the outer side of the fan shell, thereby facilitating disassembly and assembly and overhaul.

[0016] 2. The municipal tunnel jet flow fan convenient to overhaul, the spring pad attached to the outer portion of the fan shell is a heat-conducting silicone grease sheet, and the ventilation groove is provided on the limiting seat, so that the fan shell is conveniently assisted in heat dissipation, and the problem of heat accumulation in the fan is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the jet flow fan and the mounting table structure of the utility model;

[0018] Figure 2 It is a front view of the jet flow fan and the mounting table structure of the utility model; Figure 1 view;

[0019] Figure 3 It is a front view of the jet flow fan and the mounting table structure of the utility model; Figure 2 view;

[0020] Figure 4 For Figure 2 Viewing angle installation table structure plan view.

[0021] In the figure: 1, installation table; 2, fan housing; 3, adjusting butt joint structure; 301, threaded screw; 302, worm ring; 303, worm; 304, limit seat; 305, positioning piece; 306, spring pad; 3061, spring group; 3062, heat-conducting silicone sheet; 307, dust filter screen; 4, pulley; 5, rotating rod; 6, sliding block; 7, screw hole; 8, connecting piece. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-4 A municipal tunnel jet flow fan convenient to overhaul, comprising an installation table 1 and a fan housing 2 arranged at the bottom of the installation table 1, the inside of the installation table 1 is provided with an adjusting butt joint structure 3, the front ends of two worms 303 are coaxially and fixedly connected with pulleys 4, the front of the installation table 1 is rotatably connected with a rotating rod 5, the outside of two threaded screws 301 and the other two threaded screws 301 are threadedly connected with sliding blocks 6, the front of the fan housing 2 is provided with a plurality of screw holes 7, and the front and back sides of the installation table 1 are fixedly connected with connecting pieces 8.

[0024] The adjusting butt joint structure 3 comprises a threaded screw 301 rotatably connected in the inside of the installation table 1, the threaded screw 301 is coaxially fixed with a worm ring 302 at one end, the inside of the installation table 1 is rotatably connected with a worm 303, the inside bottom of the installation table 1 is slidably connected with a limit seat 304, the inside of the limit seat 304 is fixedly connected with a positioning piece 305, the inside of the limit seat 304 is provided with a spring pad 306, and the inside of the limit seat 304 is fixedly connected with a dust filter screen 307.

[0025] In the implementation, the following steps are performed:

[0026] 1) According to the size of the fan housing 2, rotate the rotating rod 5, and drive the two worms 303 through the two pulleys 4 synchronously by the rotating rod 5;

[0027] 2) Then through the two worm 303 synchronous mesh transmission four threaded lead screw 301 on the worm ring 302, control four threaded lead screw 301 synchronous rotation, two threaded lead screw 301 and the other two threaded lead screw 301 through the slide block 6 drive two limit seat 304 relative or opposite movement;

[0028] 3) Again using two side limit seat 304 ring clamp tight fan shell 2 outside, using the positioning piece 305 and the front of the fan shell 2 installation connection;

[0029] 4) Finally through the spring pad 306 on the surface of the fan shell 2 paste clamp, increase stability.

[0030] According to Figure 2 and Figure 4 shown, by rotating the rotating rod 5, drive one of the pulley 4, two pulley 4 through the synchronous transmission belt, control two worm 303 synchronous rotation, using two worm 303 synchronous mesh four worm ring 302 rotation, by four worm ring 302 synchronous drive four threaded lead screw 301.

[0031] According to Figure 2 and Figure 4 shown, two threaded lead screw 301 outside thread connection one of the slide block 6, another two threaded lead screw 301 outside thread connection another slide block 6, because two threaded lead screw 301 and the other two threaded lead screw 301 outside the thread layer symmetrical distribution, thus drive both sides of the slide block 6 relative or opposite movement.

[0032] According to Figure 2 and Figure 3 shown, the inside of the limit seat 304 and spring pad 306 are arc surface structure, convenient and stable paste in the outside of the fan shell 2, set the positioning piece 304 through the bolt and the front of the fan shell 2 screw hole 7 connection, limit fixed on the front and rear side of the fan, cooperate with the ventilation slot and heat conductive silicone grease piece 3062 auxiliary cooling, at the same time installation platform 1 through the connecting piece 8 and screw and tunnel wall installation.

[0033] In summary, the municipal tunnel jet flow fan convenient to overhaul, through the rotating rod 5 through two pulleys 4 synchronous belt drive two worm 303 rotation, using the worm 303 meshing transmission screw rod 301 on the worm gear ring 302, thereby controlling the screw rod 301 synchronous rotation, screw rod 301 through the slide block 6 drive two limit seat 304 relative or opposite movement, cooperate spring pad 306 and positioning piece 305 outside the fan shell 2 fast paste fixed, so as to facilitate disassembly and repair, while the design of spring pad 306 paste fan shell 2 outside for heat-conducting silicone grease sheet 3062, cooperate with the limit seat 304 opening ventilation groove, facilitate the effect of fan shell 2 auxiliary heat dissipation, avoid the problem of heat accumulation inside the fan, solve the above background technology in the existing jet flow fan in the whole fan disassembly and repair maintenance problem.

[0034] It should be noted that in this text, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "includes a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0035] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A municipal tunnel jet fan convenient for maintenance, comprising a mounting table (1) and a fan shell (2) arranged at the bottom of the mounting table (1), characterized in that: The inside of the mounting table (1) is provided with an adjusting butt joint structure (3); The adjusting butt joint structure (3) comprises a threaded lead screw (301) rotatably connected to the inside of the mounting table (1), one end of the threaded lead screw (301) is coaxially fixed with a worm gear ring (302), the inside of the mounting table (1) is rotatably connected with a worm (303), the inside bottom of the mounting table (1) is slidably connected with a limiting seat (304), the inside of the limiting seat (304) is fixedly connected with a positioning sheet (305), the inside of the limiting seat (304) is provided with a spring pad (306), and the inside of the limiting seat (304) is fixedly connected with a dust filter screen (307).

2. A municipal tunnel fluidics fan for easy maintenance according to claim 1, characterized in that: The inside of the mounting table (1) is provided with two cavities, the number of the threaded lead screw (301) and the worm gear ring (302) is four, four threaded lead screws (301) are respectively located in the inside of the two cavities, the number of the worm (303) is two, four worm gear rings (302) are respectively located at one end of the four threaded lead screws (301) towards the worm (303), and are respectively engaged with the outside of the two worms (303).

3. A municipal tunnel flow-throw fan for easy access according to claim 1, characterized in that: The front end of the two worms (303) is coaxially fixedly connected with a belt pulley (4), the two belt pulleys (4) are drivingly connected through a belt, the front of the mounting table (1) is rotatably connected with a rotating rod (5), and the rear end of the rotating rod (5) is fixedly connected with the front end of one of the belt pulleys (4).

4. A municipal tunnel flow-throw fan for easy access according to claim 1, characterized in that: The outside of the two threaded lead screws (301) and the other two threaded lead screws (301) is threadedly connected with a sliding table block (6), the number of the limiting seat (304) is two, and the bottom of the two sliding table blocks (6) is connected.

5. A municipal tunnel fluidics fan for easy access according to claim 1, characterized in that: The front of the fan shell (2) is provided with a plurality of threaded holes (7), the positioning sheet (305) is adaptively connected with the threaded hole (7) through a bolt structure, the spring pad (306) comprises a spring group (3061) fixedly connected to the inside of the limiting seat (304), and one side of the spring group (3061) is fixedly connected with a heat-conducting silicone grease sheet (3062).

6. A municipal tunnel fluidics fan for easy access according to claim 5, characterized in that: The heat-conducting silicone grease sheet (3062) is provided with an internal thread structure on the side facing the fan shell (2), the inside of the two limiting seats (304) is provided with a ventilation groove in a through structure, the number of the dust filter screen (307) is two, and the two are respectively located in the inside of the two ventilation grooves, the front and rear sides of the mounting table (1) are fixedly connected with a connecting sheet (8), and the inside of the connecting sheet (8) is threadedly connected with a screw structure.

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