Safety anti-breaking structure for fan blades of industrial fan

Abstract

The utility model discloses an industrial fan blade safety anti-breaking structure which comprises an installation base and fan blades, a chassis is arranged at the lower end of the installation base, an installation mechanism used for installing the fan blades is arranged on the outer wall of the chassis, and an anti-breaking mechanism enabling the multiple fan blades to be connected together is arranged on the outer walls of the fan blades. The fan relates to the technical field of fans and is provided with an anti-breaking mechanism, the inner side of the upper end of each fan blade is fixedly connected with a fixing ring and an extension rod on the outer side of the fixing ring, and meanwhile the outer side of the upper end of each fan blade is fixedly connected with a limiting ring and a connecting plate through a fourth fastener. The inner side of the fixing ring is fixedly connected with the base plate through connection of the connecting rod and the mounting ring, mounting of the fan blades can be reinforced from the inner side and the outer side, the connecting stability of the fan blades and the base plate is effectively improved, mounting of the fan blades is reinforced, and the fan blades are prevented from being broken and falling off to a certain degree.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a safety anti-breakage structure for industrial fan blades. Background Art

[0002] Industrial fans can most efficiently push a large amount of air to generate a large amount of air, so that the space forms a moving and circulating airflow field, and ultimately can effectively regulate the air circulation problem in industrial production workshops. The area blown by an industrial fan is directly related to the diameter of the fan, and large industrial fans cover a large area, are easy to clean, and solve the problems of high noise and high energy consumption; when large industrial fans are working, the large fan blades are driven by a motor to rotate to efficiently push a large amount of air to generate a large amount of air; however, after long-term use, due to the large weight of large industrial fans and the long length of the fan blades, it is inevitable that the installation structure of the entire large industrial fan will become loose, and even accidental falling may occur. For this reason, a wire rope will be used to pull the main unit of the large industrial fan as a safety measure to increase the safety factor;

[0003] However, since the fan blades in large industrial fans are long and heavy, there is a risk that the fan blades may break relative to the main unit of the large industrial fan and detach from the main unit of the large industrial fan after long-term use. If the fan is still working at this time, the broken fan blades may be thrown out under the action of centrifugal force, posing a threat to personal safety and property safety. Utility Model Content

[0004] The utility model aims to provide a blade safety anti-breaking structure for an industrial fan to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An industrial fan blade safety anti-breakage structure comprises a mounting seat and a blade, wherein a chassis is arranged at the lower end of the mounting seat, an installation mechanism for installing the blade is arranged on the outer wall of the chassis, and an anti-breakage mechanism for connecting a plurality of blades together is arranged on the outer wall of the blade.

[0007] In a preferred embodiment of the utility model, a suspension rod is fixedly mounted on the lower end of the mounting seat, a mounting cover is fixedly mounted on the lower end of the suspension rod, a drive shaft is rotatably mounted on the inner wall of the lower end of the mounting cover, and the lower end of the drive shaft is fixedly connected to the chassis.

[0008] In a preferred embodiment of the present utility model, the mounting mechanism includes a mounting plate, which is fixedly mounted on the outer wall of the chassis, and there are six mounting plates. A first mounting hole is formed on the inner wall of the mounting plate. A first connecting plate is fixedly mounted on the upper end of the chassis by bolts, and a second mounting hole is formed on the inner wall of the first connecting plate.

[0009] In a preferred embodiment of the present invention, the fan blade is slidably mounted on the opposite side of the mounting plate and the first connecting plate, the inner wall of the fan blade is provided with a third mounting hole, the inner wall of the fan blade is provided with a first connecting hole, and the outer inner wall of the fan blade is provided with a second connecting hole.

[0010] In a preferred embodiment of the present invention, a first fastener is installed on the inner wall of the first connecting plate through a second mounting hole, and the fan blade is fixedly mounted on the opposite side of the mounting plate and the first connecting plate by the first fastener.

[0011] In a preferred embodiment of the present utility model, the anti-breakage mechanism includes a mounting ring and a connecting rod, the mounting ring is fixedly mounted on the upper side of the chassis, a fourth mounting hole is provided on the inner wall of the mounting ring, through holes are provided on the inner walls at both ends of the connecting rod, a second fastener is provided on the inner wall of the through hole, and one end of the connecting rod is fixedly connected to the mounting ring by the second fastener.

[0012] In a preferred embodiment of the present invention, one end of the connecting rod away from the mounting ring is fixedly connected to the fixing ring via a second fastener, a first circular hole is formed on the inner wall of the fixing ring, and an extension rod is fixedly mounted on the outer side of the fixing ring.

[0013] In a preferred embodiment of the present invention, a second circular hole is formed on the inner wall of the extension rod and the inner wall of the fixing ring, a third fastener is provided on the inner wall of the second circular hole, and the extension rod is fixedly connected to the fan blade via the third fastener.

[0014] In a preferred embodiment of the present utility model, the outer wall of the upper end of the fan blade is fixedly connected to a limiting ring through a second connecting hole, and a second connecting plate is fixedly installed on the inner side of the limiting ring, and the number of the second connecting plates is six.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0016] Beneficial effects:

[0017] 1. The utility model is provided with an anti-breaking mechanism. The inner side of the upper end of each fan blade is fixedly connected to the fixing ring and the extension rod outside the fixing ring. At the same time, the outer side of the upper end of each fan blade is fixedly connected to the limit ring and the connecting plate through a fourth fastener. The inner side of the fixing ring is fixedly connected to the chassis through the connection of the connecting rod and the mounting ring. The installation of the fan blade can be reinforced from both inside and outside, effectively improving the stability of the connection between the fan blade and the chassis, reinforcing the installation of the fan blade, and avoiding the fan blade from breaking and falling to a certain extent.

[0018] 2. If the fan blades are accidentally broken after long-term use, the fixing ring is fixedly connected to the chassis through various parts, and the two sides of the fixing ring are also fixedly connected to the undamaged fan blades. At the same time, the outer sides of the broken fan blades are fixedly connected to the limiting ring and the connecting plate. The fan blades have a tendency to fall after breaking. The fixing ring and the limiting ring are used to prevent the fan blades from falling, which solves the risk of the fan blades breaking relative to the main unit of the large industrial fan and detaching from the main unit of the large industrial fan. If the fan is still working at this time, the broken fan blades will be thrown out under the action of centrifugal force, posing a threat to personal safety and property safety. The utility model improves the safety of industrial fans. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 The figure is a schematic diagram of the structure of an industrial fan blade safety anti-breakage structure.

[0021] Figure 2 This is a schematic diagram of the upward structure of an industrial fan blade safety anti-breakage structure.

[0022] Figure 3 The figure is a schematic diagram of the structure of various parts in a safety anti-breakage structure of an industrial fan blade.

[0023] Figure 4 The figure is a schematic diagram of the structure of a fixing ring in a blade safety anti-breakage structure of an industrial fan.

[0024] Figure 5 The figure is a schematic diagram of the structure of a blade in an industrial fan blade safety anti-breakage structure.

[0025] Figure 6 The schematic diagram is a structural diagram of an installation mechanism in an industrial fan blade safety anti-breakage structure.

[0026] Figure 7 The diagram is a partial structural diagram of an industrial fan blade safety anti-breakage structure.

[0027] Figure 8 A kind of industrial fan blade safety anti-break structure Figure 3 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0028] In the figure: mounting base 100; suspension rod 110; mounting cover 130; drive shaft 140; chassis 150; fan blade 200; third mounting hole 201; first connecting hole 202; second connecting hole 203; mounting plate 300; first mounting hole 301; first fastener 310; first connecting plate 320; second mounting hole 3201; mounting ring 400; fourth mounting hole 401; connecting rod 410; through hole 4101; second fastener 411; fixing ring 420; first circular hole 4201; second circular hole 4202; extension rod 421; third fastener 430; limiting ring 440; second connecting plate 441. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] Example 1: Figure 1-8 , including a mounting seat 100 and a fan blade 200, wherein a chassis 150 is provided at the lower end of the mounting seat 100, and a mounting mechanism for mounting the fan blade 200 is provided on the outer wall of the chassis 150, and an anti-breaking mechanism for connecting multiple fan blades 200 is provided on the outer wall of the fan blade 200; a suspension rod 110 is fixedly installed at the lower end of the mounting seat 100, and a mounting cover 130 is fixedly installed at the lower end of the suspension rod 110, and a driving shaft 140 is rotatably installed on the inner wall of the lower end of the mounting cover 130, and the lower end of the driving shaft 140 is fixedly connected to the chassis 150;

[0031] The specific practical scenario of this embodiment is as follows: a driving motor is fixedly installed on the inner wall of the mounting cover 130, and the output shaft of the driving motor is fixedly connected to the driving shaft 140. When the driving motor is working, it can drive the driving shaft 140 to rotate, so that the chassis 150 and the fan blades 200 installed on the outside of the chassis 150 through the mounting mechanism can rotate; the side of the fan blades 200 close to the chassis 150 is the inner side, and the side of the fan blades 200 away from the chassis 150 is the outer side;

[0032] Example 2: Figure 1-8, including a mounting seat 100 and a fan blade 200, a chassis 150 is provided at the lower end of the mounting seat 100, a mounting mechanism for mounting the fan blade 200 is provided on the outer wall of the chassis 150, and an anti-breaking mechanism for connecting multiple fan blades 200 is provided on the outer wall of the fan blade 200; the mounting mechanism includes a mounting plate 300, the mounting plate 300 is fixedly mounted on the outer wall of the chassis 150, the number of the mounting plates 300 is six, the inner wall of the mounting plate 300 is provided with a first mounting hole 301, the upper end of the chassis 150 is fixedly mounted with a first connecting plate 320 by bolts, the The first connecting plate 320 has a second mounting hole 3201 formed on its inner wall; the fan blade 200 is slidably mounted on the opposite side of the mounting plate 300 and the first connecting plate 320; the fan blade 200 has a third mounting hole 201 formed on its inner wall; the fan blade 200 has a first connecting hole 202 formed on its inner wall; and the outer inner wall of the fan blade 200 has a second connecting hole 203 formed on its outer inner wall; the first connecting plate 320 has a first fastener 310 mounted on its inner wall through the second mounting hole 3201; and the fan blade 200 is fixedly mounted on the opposite side of the mounting plate 300 and the first connecting plate 320 through the first fastener 310;

[0033] The specific practical scenario of this embodiment is as follows: when the first connecting plate 320 is fixedly mounted on the upper side of the chassis 150 by bolts, the fan blade 200 can be inserted into the first connecting plate 320 and the opposite side of the mounting plate 300, and the third mounting hole 201, the second mounting hole 3201 and the first mounting hole 301 are overlapped, so that the first fastener 310 can be inserted into the third mounting hole 201, the second mounting hole 3201 and the inner wall of the first mounting hole 301, and the fan blade 200 is fixedly mounted on the opposite side of the first connecting plate 320 and the mounting plate 300, so that the fan blade 200 is fixedly mounted on the six sides of the chassis 150; the first fastener 310 is a hexagonal bolt and a nut;

[0034] Example 3: Figure 1-8, including a mounting seat 100 and a fan blade 200, a bottom end of the mounting seat 100 is provided with a chassis 150, an outer wall of the chassis 150 is provided with a mounting mechanism for mounting the fan blade 200, and an outer wall of the fan blade 200 is provided with an anti-breaking mechanism that connects multiple fan blades 200 together; the anti-breaking mechanism includes a mounting ring 400 and a connecting rod 410, the mounting ring 400 is fixedly mounted on the upper side of the bottom plate 150, a fourth mounting hole 401 is provided on the inner wall of the mounting ring 400, through holes 4101 are provided on the inner walls of both ends of the connecting rod 410, and a second fastener 411 is provided on the inner wall of the through hole 4101, and one end of the connecting rod 410 is fixedly connected to the mounting ring 400 by the second fastener 411; the connecting rod One end of 410 away from the mounting ring 400 is fixedly connected to a fixing ring 420 through a second fastener 411, a first circular hole 4201 is provided on the inner wall of the fixing ring 420, and an extension rod 421 is fixedly installed on the outer side of the fixing ring 420; a second circular hole 4202 is provided on the inner wall of the extension rod 421 and the inner wall of the fixing ring 420, a third fastener 430 is provided on the inner wall of the second circular hole 4202, and the extension rod 421 is fixedly connected to the fan blade 200 through the third fastener 430; the outer wall of the upper end of the fan blade 200 is fixedly connected to a limiting ring 440 through a second connecting hole 203, a second connecting plate 441 is fixedly installed on the inner side of the limiting ring 440, and the number of the second connecting plates 441 is six;

[0035] The specific practical scenario of this embodiment is as follows: the second circular holes 4202 are equidistantly arranged on the inner wall of the fixing ring 420, the first circular holes 4201 are equidistantly arranged on the inner wall of the fixing ring 420, and the first circular holes 4201 and the second circular holes 4202 are alternately distributed; the second circular holes 4202 and the first connecting holes 202 overlap, and the third fasteners 430 can penetrate the second circular holes 4202 and the first connecting holes 202, and the fixing ring 420 can be fixedly installed on the upper side of the fan blades 200 through the third fasteners 430, and fixedly connected to all the fan blades 200 through the fixing ring 420, and the extension rod 421 is fixedly installed on the upper side of each fan blade 200, and the connection between the fixing ring 420 and the fan blade 200 is reinforced by the extension rod 421; the third There are six groups of fasteners 430, the third fasteners 430 are round head screws and nuts, and each group of third fasteners 430 has three. The inner wall of each extension rod 421 is provided with two second circular holes 4202, and the two second circular holes 4202 and the second circular holes 4202 corresponding to the inner wall of the fixing ring 420 are located in the same straight line. One of the three third fasteners 430 in each group passes through the second circular hole 4202 on the inner wall of the fixing ring 420 and the first connecting hole 202 on the inner wall of the fan blade, and fixes the fixing ring 420 on the upper side of the fan blade 200. The other two third fasteners 430 pass through the fan blade 200 and the extension rod 421, and fix the fan blade 200 and the extension rod 421 together. There are two through holes 4101, one of which is located on the upper side of the fourth mounting hole 401, and the other through hole 4101 is located on the upper side of the first circular hole 4201. There are six groups of second fasteners 411, and each group of second fasteners 411 has two. One of the second fasteners 411 passes through the through hole 4101 and the fourth mounting hole 401 to fix the connecting rod 410 and the mounting ring 400 together, and the other second fastener 411 passes through the through hole 4101 and the second circular hole 4202 to fix the other end of the connecting rod 410 on the upper side of the fixing ring 420. The second fastener 411 is a hexagonal bolt and a nut; the inner walls of the limiting ring 440 and the second connecting plate 441 are both provided with a fourth connecting hole 4401, and the fourth The connection hole 4401 overlaps with the second connection hole 203, and the fourth connection hole 4401 and the inner wall of the second connection hole 203 are provided with a fourth fastener 442, and the limiting ring 440 and the second connection plate 441 and the fan blade 200 are fixedly connected together by the fourth fastener 442; the fourth fastener 442 is a round head screw nut, and the number of the fourth fastener 442 is six groups, and the number of each group is two. The number of the fourth connection holes 4401 opened on the inner wall of the limiting ring 440 is six, and the six fourth connection holes 4401 are equidistantly opened on the inner wall of the limiting ring 440, and the inner wall of the second connection plate 441 is fixedly installed on the inner wall of the limiting ring 440, and the connection between the limiting ring 440 and the fan blade 200 can be reinforced by the second connection plate 441;

[0036] The above structures and principles are all common standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods;

[0037] The working principle of the utility model is: when the device is used, the driving motor inside the mounting cover 130 is started, and the driving motor drives the driving shaft 140 to rotate, so that the chassis 150 at the lower end of the driving shaft 140 rotates, thereby driving the fan blades 200 to rotate; during installation, the first connecting plate 320 is fixedly installed on the upper side of the chassis 150 by bolts, and then the fan blades 200 are inserted between the first connecting plate 320 and the mounting plate 300, and the fan blades 200 are fixedly installed on the first connecting plate 320 and the inner wall of the mounting plate 300 by the first fastener 310, and then the connecting rod 410 is placed on the mounting ring 400 so that the through hole 4101 is aligned with the fourth mounting hole 401, and then the connecting rod 410 and the mounting ring 400 are fixedly installed together by the second fastener 411, and the through hole 4101 at the other end of the connecting rod 410 is aligned with the second circular hole 4202, and the second fastener 411 is The connecting rod 410 is fixedly installed together with the fixing ring 420. At this time, the second circular hole 4202 is aligned with the first connecting hole 202, and the third fastener 430 passes through the second circular hole 4202 and the first connecting hole 202, so that the fixing ring 420 is fixedly connected to the fan 200, and then the fourth connecting hole 4401 opened on the inner wall of the limiting ring 440 is aligned with the second connecting hole 203, and the fourth fastener 442 is installed on the fourth connecting hole 4401 and the inner wall of the second connecting hole 203, and the limiting ring 440 and the outer sides of the six fan blades 200 are fixedly connected together. The upper sides of the six fan blades 200 are fixedly connected to the fixing ring 420 and the limiting ring 440, and the installation of the fan blade 200 is more secure. If the fan blade 200 is broken, the connection between the fixing ring 420 and the fan blade 200 can limit the fan blade 200, and cooperate with the limiting ring 440 to prevent the broken fan blade 200 from falling.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An industrial fan blade safety anti-breakage structure, comprising a mounting seat (100) and a fan blade (200), characterized in that: A chassis (150) is provided at the lower end of the mounting seat (100), an outer wall of the chassis (150) is provided with a mounting mechanism for mounting a fan blade (200), and an outer wall of the fan blade (200) is provided with an anti-breaking mechanism for connecting a plurality of fan blades (200) together.

2. The industrial fan blade safety anti-breakage structure according to claim 1 is characterized in that: A suspension rod (110) is fixedly mounted on the lower end of the mounting seat (100), a mounting cover (130) is fixedly mounted on the lower end of the suspension rod (110), a driving shaft (140) is rotatably mounted on the inner wall of the lower end of the mounting cover (130), and the lower end of the driving shaft (140) is fixedly connected to a chassis (150).

3. The industrial fan blade safety anti-breakage structure according to claim 1 is characterized in that: The mounting mechanism comprises a mounting plate (300), wherein the mounting plate (300) is fixedly mounted on the outer wall of the chassis (150), and there are six mounting plates (300). A first mounting hole (301) is provided on the inner wall of the mounting plate (300). A first connecting plate (320) is fixedly mounted on the upper end of the chassis (150) by means of bolts, and a second mounting hole (3201) is provided on the inner wall of the first connecting plate (320).

4. The industrial fan blade safety anti-breakage structure according to claim 3 is characterized in that: The fan blade (200) is slidably mounted on the opposite side of the mounting plate (300) and the first connecting plate (320); a third mounting hole (201) is provided on the inner wall of the fan blade (200); a first connecting hole (202) is provided on the inner wall of the fan blade (200); and a second connecting hole (203) is provided on the outer inner wall of the fan blade (200).

5. The industrial fan blade safety anti-breakage structure according to claim 4 is characterized in that: The inner wall of the first connecting plate (320) is installed with a first fastener (310) through a second mounting hole (3201), and the fan blade (200) is fixedly mounted on the opposite side of the mounting plate (300) and the first connecting plate (320) through the first fastener (310).

6. The industrial fan blade safety anti-breakage structure according to claim 5, characterized in that: The anti-break mechanism comprises a mounting ring (400) and a connecting rod (410); the mounting ring (400) is fixedly mounted on the upper side of the chassis (150); a fourth mounting hole (401) is provided on the inner wall of the mounting ring (400); through holes (4101) are provided on the inner walls of both ends of the connecting rod (410); second fasteners (411) are provided on the inner walls of the through holes (4101); and one end of the connecting rod (410) is fixedly connected to the mounting ring (400) via the second fastener (411).

7. The industrial fan blade safety anti-breakage structure according to claim 6 is characterized in that: One end of the connecting rod (410) away from the mounting ring (400) is fixedly connected to a fixing ring (420) via a second fastener (411); a first circular hole (4201) is provided on the inner wall of the fixing ring (420); and an extension rod (421) is fixedly mounted on the outer side of the fixing ring (420).

8. The industrial fan blade safety anti-breakage structure according to claim 7 is characterized in that: The inner wall of the extension rod (421) and the inner wall of the fixing ring (420) are both provided with a second circular hole (4202), the inner wall of the second circular hole (4202) is provided with a third fastener (430), and the extension rod (421) is fixedly connected to the fan blade (200) via the third fastener (430).

9. The industrial fan blade safety anti-breakage structure according to claim 8, characterized in that: The outer wall of the upper end of the fan blade (200) is fixedly connected to a limit ring (440) through a second connection hole (203), and a second connection plate (441) is fixedly installed on the inner side of the limit ring (440), and the number of the second connection plates (441) is six.

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