Safety protection device of powder conveyor

Abstract

The utility model discloses a powder conveyor safety protection device which comprises a powder output pipe, the powder output pipe is of a telescopic design, the top end of the powder output pipe is provided with a flange plate connected with a discharging pipe of a powder conveyor, and the outer side of the powder output pipe is connected with two shielding films used for shielding dust in a sliding mode in the circumferential direction. The safety protection device of the powder conveyor is reasonable in structural design and convenient to use, the discharging height of powder can be effectively adjusted according to the height of a container containing corrosive powder, the escape situation is avoided, when the discharging height cannot be continuously controlled, shielding is conducted from the upper portion through a retractable protection film, powder can be prevented from escaping, and the service life of the powder conveyor is prolonged. The environment pollution caused by the fact that corrosive powder flows into the air is effectively prevented, the damage caused by the fact that the powder escapes to the skin of a worker is also avoided, and the extremely high safety protection performance is achieved in the discharging process.

Description

Technical Field

[0001] The utility model relates to the technical field of powder conveyors, in particular to a safety protection device for a powder conveyor. Background Art

[0002] When conveying some corrosive powders, the current powder conveyor has a fixed height of the discharge pipe and different heights of the collection containers. Therefore, the lighter powders are easily scattered during discharge and diffused in the air, which not only affects the environment, but also easily adheres to the skin of the staff on the side, causing certain damage and posing a certain risk. For this reason, we propose a powder conveyor safety protection device to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the utility model is to provide a safety protection device for a powder conveyor to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a powder conveyor safety protection device, comprising a powder output pipe, the powder output pipe being of a retractable design and having a flange plate installed on the top end for connecting to a discharge pipe of the powder conveyor, and two shielding films for shielding dust being slidably connected to the outer side of the powder output pipe in a circumferential direction.

[0005] Furthermore, a cross frame is symmetrically installed on the outside of the powder output pipe, and two inner ring bodies and two outer ring bodies are fixedly connected between the two cross frames. A sliding bar is slidably connected on the inner ring body and the outer ring body on the same side, and one side of the shielding film is fixedly connected to the outside of the sliding bar.

[0006] Furthermore, a receiving groove and a plug-in groove are respectively provided on both sides of the horizontal frame, and a side of the shielding film away from the slide bar is fixedly connected to the inner wall of the receiving groove.

[0007] Furthermore, a plug-in strip adapted thereto is fixedly connected to one side of the slide bar close to the plug-in slot, a transverse plate is fixedly connected to the top of the slide bar, and two locking members for fixing the slide bar are fixedly installed on the top of the transverse plate.

[0008] Furthermore, two locking holes adapted to the locking pieces are provided on the top of the cross frame.

[0009] Furthermore, the powder output pipe includes a first straight pipe portion, a second straight pipe portion and a corrugated folded portion, and two ends of the corrugated folded portion are respectively fixedly connected to the first straight pipe portion and the second straight pipe portion and are in communication with each other.

[0010] Furthermore, two connecting plates are fixedly installed on the outer side of the powder output pipe. The two connecting plates are fixedly connected to the outer surfaces of the first straight tube portion and the second straight tube portion respectively, and an electric telescopic column is fixedly installed between them.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The utility model utilizes bolts and flanges to realize the connection between the powder output pipe and the discharge pipe of the powder conveyor. According to the height of the powder container, the height of the second straight pipe part can be adjusted by using an electric telescopic column, so that the powder is at a lower position inside the container during discharge and will not escape. As the powder accumulates, the height of the second straight pipe part can be continuously moved up until it moves close to the opening of the container. The two slide bars can be toggled to make a semicircular rotation under the connection of the inner ring body and the outer ring body until the plug-in strip on the side of the slide bar is inserted into the plug-in groove, and the locking piece on the top of the horizontal plate is used to form a connection with the top of the horizontal frame, so that the slide bar is fixed, and the shielding film on the slide bar can be used to block the opening. Large-scale shielding provides anti-escape effect. When not in use, the shielding film can be stored in the storage slot and fixed with a locking piece to prevent damage to the shielding film and increase its service life. The powder conveyor safety protection device has a reasonable structural design and is easy to use. It can effectively adjust the powder discharge height according to the height of the container containing corrosive powder to avoid leakage. When the discharge height can no longer be controlled, the retractable protective film is used to block from above to prevent the leakage of powder, effectively preventing the environmental pollution caused by the flow of corrosive powder into the air, and also avoiding the damage caused by the leakage of powder to the skin of the staff, so that the discharge process has extremely high safety protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the top view of the horizontal frame of the utility model;

[0015] Figure 3 This is a side structural cross-sectional view of the locking member of the present invention.

[0016] In the figure: 1 powder output pipe, 101 first straight pipe portion, 102 second straight pipe portion, 103 corrugated folding portion, 2 flange, 3 shielding film, 4 cross frame, 5 inner ring body, 6 outer ring body, 7 slide bar, 8 storage slot, 9 plug-in slot, 10 plug-in strip, 11 cross plate, 12 locking piece, 1201 shell, 1202 pull rod, 1203 pull handle, 1204 locking socket, 1205 thrust spring, 13 locking hole, 14 connecting plate, 15 electric telescopic column. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-3 A powder conveyor safety protection device includes a powder output pipe 1. The powder output pipe 1 is a retractable design and a flange 2 connected to the discharge pipe of the powder conveyor is installed on the top. Two shielding films 3 for blocking dust are slidably connected to the outer side of the powder output pipe 1 along the circumferential direction. The shielding film 3 is made of an anti-corrosion film.

[0019] Specifically, a cross frame 4 is symmetrically installed on the outside of the powder output pipe 1, and two inner ring bodies 5 and two outer ring bodies 6 are fixedly connected between the two cross frames 4. A sliding bar 7 is slidably connected on the inner ring body 5 and the outer ring body 6 on the same side, and one side of the shielding film 3 is fixedly connected to the outside of the sliding bar 7.

[0020] Specifically, a storage groove 8 and an insertion groove 9 are respectively provided on both sides of the cross frame 4. The side of the shielding film 3 away from the slide bar 7 is fixedly connected to the inner wall of the storage groove 8. When the equipment is not in use, the shielding film 3 on the side of the slide bar 7 should be inside the storage groove 8 to avoid being exposed to the outside and easily damaged.

[0021] Specifically, the side of the slide 7 close to the plug slot 9 is fixedly connected with a plug strip 10 adapted thereto. The plug strip 10 can be inserted into the plug slot 9 to form a preliminary fixation of the slide 7 after the slide 7 is slid in a 180-degree circle. The top of the slide 7 is fixedly connected with a cross plate 11. Two locking members 12 for fixing the slide 7 are fixedly installed on the top of the cross plate 11. After the initial connection between the slide 7 and the cross frame 4 is formed by using the plug strip 10 and the plug slot 9, the locking member 12 can be used to lock the slide 7 to prevent the equipment from vibrating during the unloading state. The movement causes the natural sliding of the slide bar 7, thereby generating a blocking gap and causing the escape of powder. The locking part 12 includes a columnar shell 1201 and a pull rod 1202 is slidably connected thereto. The top end of the pull rod 1202 passes through the outside of the shell 1201 and is fixedly connected to a pull handle 1203. The bottom end of the pull rod 1202 is fixedly connected to a locking socket 1204. The surface of the pull rod 1202 located in the shell 1201 is provided with a thrust spring 1205, and the two ends of the thrust spring 1205 are respectively in contact with the inner wall of the shell 1201 and the locking socket 1204.

[0022] Specifically, two locking holes 13 adapted to the locking member 12 are provided on the top of the cross frame 4 , and the apertures of the locking holes 13 are adapted to the locking sockets 1204 .

[0023] Specifically, the powder output pipe 1 includes a first straight pipe portion 101 , a second straight pipe portion 102 and a corrugated folded portion 103 . Both ends of the corrugated folded portion 103 are fixedly connected to the first straight pipe portion 101 and the second straight pipe portion 102 and communicate with each other.

[0024] Specifically, two connecting plates 14 are fixedly installed on the outside of the powder output pipe 1. The two connecting plates 14 are respectively fixedly connected to the outer surfaces of the first straight tube portion 101 and the second straight tube portion 102, and an electric telescopic column 15 is fixedly installed between them. The electric telescopic column 15 can be used to adjust the height of the second straight tube portion 102, thereby adjusting the height of the discharge. When inside the container, the discharge height is low to avoid leakage into the air.

[0025] The powder conveyor safety protection device has a reasonable structural design and is easy to use. It can effectively adjust the powder discharge height according to the height of the container containing corrosive powder to avoid leakage. When the discharge height cannot be further controlled, a retractable protective film is used to block it from above to prevent the leakage of powder. It effectively prevents the environmental pollution caused by the flow of corrosive powder into the air, and also avoids the damage caused by the leakage of powder to the skin of the workers, so that the discharge process has extremely high safety protection performance.

[0026] During use, the connection between the powder output pipe 1 and the powder conveyor discharge pipe can be achieved by using bolts and flange 2. According to the height of the powder container, the height of the second straight pipe part 102 can be adjusted by using the electric telescopic column 15, so that the powder is at a lower position inside the container during discharge and no leakage occurs. As the powder accumulates, the height of the second straight pipe part 102 can continue to move up until it moves close to the container opening. The two slide bars 7 can be toggled to make them rotate semicircularly under the connection between the inner ring body 5 and the outer ring body 6 until the plug-in strip 10 on the side of the slide bar 7 is inserted into the plug-in groove 9, and the locking piece 12 at the top of the horizontal plate 11 is used to form a connection with the top of the horizontal frame 4, thereby fixing the slide bar 7. The shielding film 3 on the slide bar 7 can be used to block the opening over a large area to provide an anti-escape effect. When not in use, the shielding film 3 can be put into the storage groove 8 and fixed with the locking piece 12 to prevent the shielding film 3 from being damaged and prolonging its service life.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for a powder conveyor, comprising a powder output pipe (1), characterized in that: The powder output pipe (1) is of telescopic design and has a flange (2) installed on its top end for connection with a discharge pipe of a powder conveyor. Two shielding films (3) for shielding dust are slidably connected to the outer side of the powder output pipe (1) in a circumferential direction.

2. A powder conveyor safety protection device according to claim 1, characterized in that: A cross frame (4) is symmetrically installed on the outer side of the powder output pipe (1), two inner ring bodies (5) and two outer ring bodies (6) are fixedly connected between the two cross frames (4), a slide bar (7) is slidably connected on the inner ring body (5) and the outer ring body (6) on the same side, and one side of the shielding film (3) is fixedly connected to the outer side of the slide bar (7).

3. A powder conveyor safety protection device according to claim 2, characterized in that: A receiving groove (8) and a plug-in groove (9) are respectively provided on both sides of the horizontal frame (4), and the side of the shielding film (3) away from the slide bar (7) is fixedly connected to the inner wall of the receiving groove (8).

4. A powder conveyor safety protection device according to claim 3, characterized in that: The side of the slide bar (7) close to the plug-in slot (9) is fixedly connected to a plug-in strip (10) adapted thereto, the top of the slide bar (7) is fixedly connected to a transverse plate (11), and the top of the transverse plate (11) is fixedly mounted with two locking members (12) for fixing the slide bar (7).

5. A powder conveyor safety protection device according to claim 4, characterized in that: Two locking holes (13) adapted to the locking pieces (12) are provided on the top of the cross frame (4).

6. A powder conveyor safety protection device according to claim 5, characterized in that: The powder output pipe (1) comprises a first straight pipe portion (101), a second straight pipe portion (102) and a corrugated folded portion (103), and two ends of the corrugated folded portion (103) are respectively fixedly connected to the first straight pipe portion (101) and the second straight pipe portion (102) and are in communication with each other.

7. A powder conveyor safety protection device according to claim 6, characterized in that: Two connecting plates (14) are fixedly installed on the outer side of the powder output pipe (1); the two connecting plates (14) are respectively fixedly connected to the outer surfaces of the first straight pipe portion (101) and the second straight pipe portion (102), and an electric telescopic column (15) is fixedly installed between them.

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