CN213949690U - Air-turning off machine with protection device - Google Patents

Abstract

The utility model discloses a close fan with protection device, including closing the fan casing, the striker plate, the connecting axle, the stopper, the rolling disc, the loose axle, the connecting rod, reset spring, close fan casing upper end fixedly connected with inlet pipe, close fan casing lower extreme fixedly connected with discharging pipe, the inside both sides of discharging pipe are rotated respectively and are connected with the connecting axle, connecting axle lateral wall fixedly connected with striker plate, the inboard middle part fixedly connected with stopper of discharging pipe, the spread groove has been seted up to the stopper lower extreme, the terminal gomphosis of striker plate is connected in the spread groove, the connecting axle of homonymy runs through fixedly connected with rolling disc behind the discharging pipe lateral wall, the marginal fixedly connected with loose axle in rolling disc side, connecting rod one end is rotated and is connected on the loose axle, the connecting rod other end is fixed connection at reset spring both ends respectively. The utility model provides a prevent that operating personnel from stretching into in the discharging tube clear stifled and take place accident's fan of closing.

Description

Air-turning off machine with protection device

Technical Field

The utility model relates to a close fan technical field, specific close fan with protection device that says so.

Background

The air-closing machine is also called as a discharger, an air locking valve and a rotary valve, and is divided into three types of common type, pressure-resistant type and high-temperature-resistant type, the air-closing machine is arranged at a discharge outlet of the discharger working under negative pressure, the upper part of the air-closing machine receives materials discharged by the discharger, the air-closing machine plays a role of conveying the materials by a rotary impeller and plays a role of sealing to prevent air from being sucked from the discharge outlet in the process of pneumatic conveying and ensure normal discharge of the discharger, but the feeding speed cannot be controlled by the existing air-closing machine, when graphite materials are discharged, an impeller sheet in the air-closing machine can be extruded with the materials, so that the internal blockage of the air-closing machine is caused, a driving motor cannot be started, some operators can directly stretch the air-closing machine from a discharge pipe by hands to clear the blockage, in order to reduce disassembly and cleaning, reduce labor intensity and time, but the method can easily cause sudden start of the air-closing machine, accidents occur.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a prevent that operating personnel from stretching into in the discharging tube clear stifled and the fan of shutting down of emergence accident.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: the air-lock machine with the protection device comprises an air-lock machine shell, a baffle plate, a connecting shaft, a limiting block, a rotating disc, a movable shaft, a connecting rod and a return spring, wherein the air-lock machine shell comprises a feeding pipe, a power main shaft, an impeller shaft sleeve, impeller blades and a discharging pipe, the upper end of the air-lock machine shell is fixedly connected with the feeding pipe, the lower end of the air-lock machine shell is fixedly connected with the discharging pipe, a circular inner cavity is formed in the air-lock machine shell and is respectively communicated with the feeding pipe and the discharging pipe, the power main shaft is rotatably connected on the central axis of the circular inner cavity, the impeller shaft sleeve is connected on the power main shaft in a sleeved mode, a plurality of impeller blades which are uniformly arranged are fixedly arranged on the impeller shaft sleeve, the connecting shaft is respectively rotatably connected on two sides in the discharging pipe, the baffle plate is fixedly connected on the side wall of the connecting shaft, and the limiting block is fixedly connected in the middle of the inner side of the discharging pipe, the connecting groove has been seted up to the stopper lower extreme, the terminal gomphosis of striker plate is connected in the spread groove, the stopper upper end is the edges and corners structure, the homonymy the connecting axle runs through fixedly connected with rolling disc behind the discharging pipe lateral wall, rolling disc side edge fixedly connected with loose axle, connecting rod one end is rotated and is connected on the loose axle, the connecting rod other end fixed connection respectively is in reset spring both ends.

In one embodiment, the outer side surface of the air shutter casing is fixedly connected with mounting bearing seats respectively, two ends of the power spindle are connected in the mounting bearing seats respectively, the outer ends of one group of the mounting bearing seats are fixedly connected with driving motors, and the rotating shafts of the driving motors are fixedly connected with the power spindle in the mounting bearing seats.

In one embodiment, the rotating disc, the connecting rod and the return spring are all arranged inside a mounting box, and the mounting box head is fixedly connected to the outer side wall of the discharge pipe through screws.

In one embodiment, 2-3 groups of right-angle plates are fixedly connected in the discharge pipe above the limiting block, and the right-angle plates are perpendicular to the limiting block.

Compared with the prior art, the beneficial effects of the utility model are that: when closing the fan and being in running condition, and the material passes through the inlet pipe and gets into, and discharge from the discharging pipe, at this in-process, the material falls on the striker plate, and because material self gravity pushes down the striker plate, make the striker plate overturn downwards around the connecting axle, thereby guarantee that the material can fall smoothly, when closing the fan and should block up the out-of-service operation, the material can't fall, and pull the connecting rod through reset spring, and then make the rolling disc rotate to relative direction, overturn the striker plate to the stopper lower extreme again through the rolling disc, and then make the discharging pipe form the encapsulated situation, prevent someone from stretching into the fan of closing the hand and clear up, prevent accident's emergence.

Drawings

FIG. 1 is a schematic view of a sectional structure of a discharge tube of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic view of the disassembled three-dimensional structure of the present invention;

fig. 4 is a schematic diagram of a detailed structure of a part a1 in fig. 3.

In the figure: 1. turning off a fan shell; 2. a striker plate; 3. a connecting shaft; 4. a limiting block; 5. rotating the disc; 6. a movable shaft; 7. a connecting rod; 8. a return spring; 9. a feed pipe; 10. a power spindle; 11. an impeller shaft sleeve; 12. impeller blades; 13. a discharge pipe; 14. a drive motor; 15. mounting a box; 16. a right-angle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a wind shut-off machine with a protection device according to an embodiment of the present application includes a wind shut-off machine housing 1, a striker plate 2, a connecting shaft 3, a limiting block 4, a rotating disc 5, a movable shaft 6, a connecting rod 7, and a return spring 8, the wind shut-off machine housing 1 includes a feeding pipe 9, a power spindle 10, an impeller shaft sleeve 11, an impeller blade 12, and a discharging pipe 13, the upper end of the wind shut-off machine housing 1 is fixedly connected with the feeding pipe 9, the lower end of the wind shut-off machine housing 1 is fixedly connected with the discharging pipe 13, a circular inner cavity is formed in the wind shut-off machine housing 1, the circular inner cavity is respectively communicated with the feeding pipe 9 and the discharging pipe 13, the power spindle 10 is rotatably connected on a central axis of the circular inner cavity, the impeller shaft sleeve 11 is connected on the power spindle 10 in a sleeved manner, a plurality of uniformly arranged impeller blades 12 are fixedly installed on the impeller shaft sleeve 11, two sides inside the discharging pipe 13 are respectively rotatably connected with the connecting shaft 3, 3 lateral wall fixedly connected with striker plates of connecting axle 2, 13 inboard middle part fixedly connected with stoppers 4 of discharging pipe, the spread groove has been seted up to 4 lower extremes of stopper, 2 terminal gomphosis of striker plates are connected in the spread groove, 4 upper ends of stopper are the edges and corners structure, connecting axle 3 of homonymy runs through discharging pipe 13 lateral wall back fixedly connected with rolling disc 5, 5 side edge fixedly connected with loose axle 6 of rolling disc, 7 one ends of connecting rod are rotated and are connected on loose axle 6, 7 other ends of connecting rod difference fixed connection are at reset spring 8 both ends.

In some embodiments, the outer side surface of the air shutter casing 1 is fixedly connected with mounting bearing seats respectively, two ends of the power spindle 10 are connected in the mounting bearing seats respectively, the outer ends of one group of the mounting bearing seats are fixedly connected with a driving motor 14, the rotating shaft of the driving motor 14 is fixedly connected with the power spindle 10 in the mounting bearing seats, when the driving motor 14 stops, the unloading can be closed, and when the driving motor 14 runs, the power spindle 10 drives the impeller blades 12 to rotate, and the unloading is opened.

In some of these embodiments, rolling disc 5, connecting rod 7, reset spring 8 all set up inside mounting box 15, and 15 first screw fixed connection of using of mounting box are on 13 lateral walls of discharging pipe, prevent someone from manually dragging connecting rod 7, make striker plate 2 unable closure, and then someone stretches into in discharging pipe 13 with the hand.

In some embodiments, 2-3 sets of right-angle plates 16 are fixedly connected in the discharge pipe 13 above the limiting block 4, and the right-angle plates 16 are perpendicular to the limiting block 4 for enhancing the protection performance.

The working principle of the air shutoff machine of the embodiment of the application is as follows: when closing the fan and being in running condition, and the material passes through inlet pipe 9 and gets into, and discharge from discharging pipe 13, at this in-process, the material falls on striker plate 2, and because material self gravity pushes down striker plate 2, make striker plate 2 around connecting axle 3 upset downwards, thereby guarantee that the material can fall smoothly, when closing the fan and stopping the operation, the unable whereabouts of material, and pull connecting rod 7 through reset spring 8, and then make rolling disc 5 rotate to relative direction, overturn striker plate 2 to stopper 4 lower extreme again through rolling disc 5, and then make discharging pipe 13 form the encapsulated situation, prevent that someone from stretching into the hand and close the fan and clear up, prevent accident's emergence.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims (4)

1. A fan shutting device with a protection device comprises a fan shutting shell (1), a material baffle plate (2), a connecting shaft (3), a limiting block (4), a rotating disc (5), a movable shaft (6), a connecting rod (7) and a reset spring (8), and is characterized in that the fan shutting shell (1) comprises a feeding pipe (9), a power main shaft (10), an impeller shaft sleeve (11), an impeller blade (12) and a discharging pipe (13), the upper end of the fan shutting shell (1) is fixedly connected with the feeding pipe (9), the lower end of the fan shutting shell (1) is fixedly connected with the discharging pipe (13), a circular inner cavity is formed in the fan shutting shell (1), the circular inner cavity is respectively communicated with the feeding pipe (9) and the discharging pipe (13), the power main shaft (10) is rotatably connected to the central axis of the circular inner cavity, the impeller shaft sleeve (11) is connected to the power main shaft (10) in a sleeved mode, a plurality of impeller blades (12) which are uniformly arranged are fixedly arranged on the impeller shaft sleeve (11), two sides inside the discharge pipe (13) are respectively and rotatably connected with a connecting shaft (3), the side wall of the connecting shaft (3) is fixedly connected with a material baffle plate (2), the middle part of the inner side of the discharge pipe (13) is fixedly connected with a limiting block (4), the lower end of the limiting block (4) is provided with a connecting groove, the tail end of the striker plate (2) is embedded and connected in the connecting groove, the upper end of the limiting block (4) is of an edge structure, the connecting shaft (3) at the same side penetrates through the outer side wall of the discharging pipe (13) and then is fixedly connected with a rotating disc (5), the edge of the side surface of the rotating disc (5) is fixedly connected with a movable shaft (6), one end of the connecting rod (7) is rotatably connected on the movable shaft (6), the other end of the connecting rod (7) is respectively and fixedly connected with the two ends of the reset spring (8).

2. The air shutter with the protection device according to claim 1, characterized in that the outer side of the air shutter shell (1) is fixedly connected with a mounting bearing seat respectively, two ends of the power spindle (10) are connected in the mounting bearing seats respectively, and the outer end of one group of the mounting bearing seats is fixedly connected with a driving motor (14), and the rotating shaft of the driving motor (14) is fixedly connected with the power spindle (10) in the mounting bearing seats.

3. The air shutter with the protection device according to claim 1, characterized in that the rotating disc (5), the connecting rod (7) and the return spring (8) are all arranged inside a mounting box (15), and the head of the mounting box (15) is fixedly connected to the outer side wall of the discharge pipe (13) through screws.

4. The air shutoff machine with the protection device according to claim 1, characterized in that 2-3 sets of right-angle plates (16) are fixedly connected in the discharge pipe (13) above the limiting block (4), and the right-angle plates (16) are perpendicular to the limiting block (4).

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