Self-cleaning nozzle of dust remover

Abstract

The utility model belongs to the technical field of dust removers, and particularly discloses a self-cleaning nozzle of a dust remover, which comprises a nozzle body, a sealing cover, a spring, a nozzle core, an ejector pin and a drainage device, an air outlet is arranged at the bottom end in the nozzle body, and an air inlet is arranged on the side edge in the nozzle body. A first connecting channel is axially formed in one side of the air inlet and communicated with the upper end of the air outlet, a cavity with an upward opening is formed in the nozzle body, a nozzle core is installed in the lower end of the cavity, a chamfer is arranged at the top end of the nozzle core, and an ejector pin is fixedly arranged at the bottom end of the nozzle core. The ejector pin penetrates through the first connecting channel and extends into the upper end of the air outlet, a second connecting channel is vertically arranged in the nozzle body, and the second connecting channel is communicated with the air inlet and the cavity in a penetrating mode; a sealing cover is installed at the opening of the top end of the nozzle body, and a spring is arranged between the bottom of the sealing cover and the top end of the nozzle core.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a self-cleaning nozzle for a dust collector. Background Art

[0002] Bag dust collectors are widely used in most industrial enterprises due to their high dust removal efficiency. Bag dust collectors allow dust-laden gas to enter the filter chamber through the lower open flange, and coarser particles fall directly into the ash bin. The dust-laden gas is filtered by the filter bag, and the dust is retained on the bag surface. The clean air passes through the bag mouth to the clean air chamber and is discharged into the atmosphere by the fan. The pulses ejected by the nozzle in the bag dust collector clean the filter bag.

[0003] The nozzle opening in the prior art is basically designed to be in an open state, and dust in the air will enter the nozzle through the opening, causing a lot of dust inside, which can easily lead to nozzle clogging and affect the nozzle's spraying of airflow to clean the bag. Utility Model Content

[0004] The utility model aims to provide a self-cleaning nozzle for a dust collector to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-cleaning nozzle for a dust collector, comprising a nozzle body, a sealing cover, a spring, a nozzle core, a ejector pin and a flow guider, an air outlet is arranged at the bottom end of the interior of the nozzle body, an air inlet is arranged at the side of the interior of the nozzle body, a first connecting channel is axially arranged on one side of the air inlet, the first connecting channel is connected to the upper end of the air outlet, a cavity open upward is arranged inside the nozzle body, a nozzle core is installed inside the lower end of the cavity, a chamfer is arranged on the top of the nozzle core, and the nozzle A ejector is fixedly arranged at the bottom end of the core, and the ejector passes through the first connecting channel and extends into the upper end of the air outlet. A second connecting channel is vertically arranged in the nozzle body, and the second connecting channel passes through and connects the air inlet and the cavity. A sealing cover is installed at the open top of the nozzle body, and a spring is arranged between the bottom of the sealing cover and the top of the nozzle core. A trumpet-shaped flow guider is fixed at the bottom end of the nozzle body, and the side with a smaller diameter is the outlet direction of the flow guider. An elastic component is installed in the outlet direction of the flow guider, and the elastic component is composed of four fan-shaped silicone blocks.

[0006] Preferably, a first annular groove is provided on the chamfered edge of the upper end of the nozzle core, a second annular groove is provided on the cylindrical body of the lower end of the nozzle core, a first O-ring is installed in the first annular groove, and a second O-ring is installed in the second annular groove.

[0007] Preferably, a cylindrical accommodating cavity is provided inside the sealing cover, the upper end of the spring is arranged in the accommodating cavity, a limiting ring of the same size as the accommodating cavity is provided on the top surface of the nozzle core, and the lower end of the spring is arranged in the limiting ring.

[0008] Preferably, an air outlet hole connecting the accommodating cavity groove and the outside is opened at the center of the upper end of the sealing cover.

[0009] Preferably, a slope is provided at the bottom end of the inner wall of the accommodating cavity, and the inclination of the slope matches the chamfer of the top end of the nozzle core.

[0010] Preferably, an internal thread is provided on the top inner wall of the accommodating cavity, and an external thread is provided on the outer wall of the lower end of the sealing cover, and the internal thread matches the external thread.

[0011] Compared with the prior art, the utility model has the following beneficial effects: a self-cleaning nozzle of a dust collector is provided with a flow guide, an elastic component is provided at the outlet end of the flow guide, and the elastic component is four fan-shaped silicone blocks. When the nozzle is running, the airflow passes from the air inlet to the air outlet and then passes to the flow guide. When the elastic component is impacted by the gas, the elastic component opens; when the nozzle is not running, the elastic component is merged and closed to prevent dust from entering the nozzle and causing blockage. The utility model is provided with an ejector pin, and the ejector pin performs piston motion at the first connecting channel between the air inlet and the air outlet under the action of a spring to prevent the airflow channel of the nozzle from being blocked. The utility model has a simple structure and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is an explosion diagram of the utility model;

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 4 It is an overall bottom view of the utility model.

[0016] In the figure: 1. nozzle body; 101. cavity; 102. air inlet; 103. air outlet; 104. first connecting channel; 105. second connecting channel; 106. internal thread; 2. sealing cover; 201. air outlet; 202. accommodating chamber; 203. external thread; 3. spring; 4. nozzle core; 401. limiting ring; 402. first annular groove; 403. second annular groove; 5. ejector pin; 6. flow guide; 7. first O-ring; 8. second O-ring; 9. elastic component. DETAILED DESCRIPTION

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

[0018] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-4 The utility model provides a technical solution: a self-cleaning nozzle for a dust collector, comprising a nozzle body 1, a sealing cover 2, a spring 3, a nozzle core 4, an ejector pin 5 and a flow guider 6, wherein an air outlet 103 is arranged at the bottom end of the nozzle body 1, an air inlet 102 is arranged at the side of the nozzle body 1, a first connecting channel 104 is axially arranged on one side of the air inlet 102, the first connecting channel 104 is connected to the upper end of the air outlet 103, an upwardly open cavity 101 is arranged inside the nozzle body 1, a nozzle core 4 is installed inside the lower end of the cavity 101, a chamfer is arranged on the top of the nozzle core 4, and a chamfer is arranged on the top of the nozzle core 4. A ejector pin 5 is fixedly arranged at the bottom, and the ejector pin 5 passes through the first connecting channel 104 and extends into the upper end of the air outlet 103. A second connecting channel 105 is vertically arranged in the nozzle body 1, and the second connecting channel 105 passes through and connects the air inlet 102 and the cavity 101; a sealing cover 2 is installed at the open top of the nozzle body 1, and a spring 3 is arranged between the bottom of the sealing cover 2 and the top of the nozzle core 4; a trumpet-shaped flow guider 6 is fixed to the bottom end of the nozzle body 1, and the side with a smaller diameter is the outlet direction of the flow guider 6, and an elastic component 9 is installed in the outlet direction of the flow guider 6, and the elastic component 9 is composed of four fan-shaped silicone blocks.

[0021] Furthermore, a first annular groove 402 is provided on the chamfered edge of the upper end of the nozzle core 4 , and a second annular groove 403 is provided on the cylindrical body of the lower end of the nozzle core 4 . A first O-ring 7 is installed in the first annular groove 402 , and a second O-ring 8 is installed in the second annular groove 403 .

[0022] Furthermore, a cylindrical accommodating cavity 202 is provided inside the sealing cover 2, the upper end of the spring 3 is arranged in the accommodating cavity 202, the top surface of the nozzle core 4 is provided with a limiting ring 401 of the same size as the accommodating cavity 202, and the lower end of the spring 3 is arranged in the limiting ring 401.

[0023] Furthermore, an air outlet 201 is provided at the center of the upper end of the sealing cover 2 to connect the accommodating cavity 202 with the outside.

[0024] Furthermore, a slope is provided at the bottom end of the inner wall of the accommodating cavity 202 , and the inclination of the slope matches the chamfer of the top end of the nozzle core 4 .

[0025] Furthermore, an internal thread 106 is provided on the top inner wall of the accommodating cavity 202 , and an external thread 203 is provided on the outer wall of the lower end of the sealing cover 2 , and the internal thread 106 matches the external thread 203 .

[0026] Working principle: The utility model provides a self-cleaning nozzle for a dust collector, comprising a nozzle body 1, a sealing cover 2, a spring 3, a nozzle core 4, a ejector pin 5 and a flow guider 6. An air outlet 103 is arranged at the bottom end of the nozzle body 1, an air inlet 102 is arranged at the side of the nozzle body 1, a first connecting channel 104 is axially arranged on one side of the air inlet 102, the first connecting channel 104 is connected to the upper end of the air outlet 103, a cavity 101 open upward is arranged inside the nozzle body 1, and a nozzle is installed inside the lower end of the cavity 101. The nozzle core 4 is provided with a chamfer at the top end, and a pin 5 is fixedly provided at the bottom end of the nozzle core 4, and the pin 5 penetrates the first connecting channel 104 and extends into the upper end of the air outlet 103. A second connecting channel 105 is vertically provided in the nozzle body 1, and the second connecting channel 105 penetrates and connects the air inlet 102 and the cavity 101; a sealing cover 2 is installed at the open top end of the nozzle body 1, and a spring 3 is provided between the bottom of the sealing cover 2 and the top end of the nozzle core 4; a trumpet-shaped flow guider 6 is fixed at the bottom end of the nozzle body 1, and a smaller diameter one The side is the outlet direction of the flow guider 6, and an elastic component 9 is installed in the outlet direction of the flow guider 6, and the elastic component 9 is composed of four fan-shaped silicone blocks; when in use, the air inlet 102 is connected to the external air pump, and the external air pump inflates air from the air inlet 102 to the first connecting channel 104. At this time, part of the gas enters the cavity 101 through the second connecting channel 105, and the nozzle core 4 in the cavity 101 moves upward under the action of the air pressure, the spring 3 is compressed, and the ejector pin 5 at the lower end of the nozzle core 4 also moves upward to leave the first connecting pipe, and then the airflow is discharged from the inlet 102. The air inlet 102 flows toward the air outlet 103 and enters the guider 6. When the elastic component 9 inside is impacted by the gas, the elastic component 9 opens, and the airflow is finally sprayed toward the bag of the dust collector. When the air pump is turned off, the elastic component 9 is combined and closed to prevent dust from entering the nozzle and causing blockage. In addition, there is no air pressure in the cavity 101. The nozzle core 4 and the ejector pin 5 move downward under the action of the spring 3. The ejector pin 5 is inserted into the first connecting pipe again. Under the action of the spring 3, the ejector pin 5 makes a piston motion at the first connecting channel 104 to prevent the airflow channel of the nozzle from being blocked.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A dust collector self-cleaning nozzle, characterized in that: The nozzle body (1) comprises a nozzle body (1), a sealing cover (2), a spring (3), a nozzle core (4), an ejector pin (5) and a flow guider (6); an air outlet (103) is arranged at the bottom end of the nozzle body (1); an air inlet (102) is arranged at the side of the nozzle body (1); a first connecting channel (104) is axially arranged on one side of the air inlet (102); the first connecting channel (104) is connected to the upper end of the air outlet (103); an upwardly open cavity (101) is arranged inside the nozzle body (1); a nozzle core (4) is installed inside the lower end of the cavity (101); a chamfer is arranged at the top end of the nozzle core (4); an ejector pin (5) is fixedly arranged at the bottom end of the nozzle core (4); The ejector pin (5) passes through the first connecting channel (104) and extends into the upper end of the air outlet (103); a second connecting channel (105) is vertically arranged in the nozzle body (1), and the second connecting channel (105) passes through and connects the air inlet (102) and the cavity (101); a sealing cover (2) is installed at the open top of the nozzle body (1), and a spring (3) is arranged between the bottom of the sealing cover (2) and the top of the nozzle core (4); a trumpet-shaped flow guide (6) is fixed at the bottom end of the nozzle body (1), and the side with a smaller diameter is the outlet direction of the flow guide (6), and an elastic component (9) is installed in the outlet direction of the flow guide (6), and the elastic component (9) is composed of four fan-shaped silicone blocks.

2. A dust collector self-cleaning nozzle according to claim 1, characterized in that: A first annular groove (402) is provided on the chamfered edge at the upper end of the nozzle core (4), and a second annular groove (403) is provided on the cylindrical body at the lower end of the nozzle core (4); a first O-ring (7) is installed in the first annular groove (402), and a second O-ring (8) is installed in the second annular groove (403).

3. The self-cleaning nozzle for dust collector according to claim 1, characterized in that: A cylindrical accommodating cavity (202) is arranged inside the sealing cover (2), the upper end of the spring (3) is arranged in the accommodating cavity (202), a limiting ring (401) of the same size as the accommodating cavity (202) is arranged on the top surface of the nozzle core (4), and the lower end of the spring (3) is arranged in the limiting ring (401).

4. A dust collector self-cleaning nozzle according to claim 3, characterized in that: An air outlet (201) communicating between the accommodating cavity (202) and the outside is provided at the center of the upper end of the sealing cover (2).

5. The self-cleaning nozzle for dust collector according to claim 3, characterized in that: The bottom end of the inner wall of the accommodating cavity (202) is provided with a slope, and the inclination of the slope is adapted to the chamfer of the top end of the nozzle core (4).

6. A dust collector self-cleaning nozzle according to claim 3, characterized in that: An internal thread (106) is provided on the top inner wall of the accommodating cavity (202), and an external thread (203) is provided on the outer wall of the lower end of the sealing cover (2), and the internal thread (106) matches the external thread (203).

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