Air pipe static electricity leading-out device

Abstract

The utility model relates to the technical field of ventilation devices, in particular to an air pipe static electricity leading-out device which comprises an air pipe body, a plurality of first through holes are formed in the outer wall of the air pipe body, the axis lines of the first through holes are parallel to one another, the first through holes are formed in the extending direction of the air pipe body at equal intervals, and the first through holes are communicated with the air pipe body. A copper woven belt is arranged in the air pipe main body; one end of the copper woven belt is grounded, and due to the conductor conduction characteristic of the copper woven belt, after fluid flowing in the air pipe body rubs on the inner wall of the copper woven belt to generate static electricity, the static electricity can be transferred under the conduction effect of the threaded rod, and the situation that the static electricity is accumulated or deflagrated in the pipe wall of the air pipe body is prevented. And static electricity on the inner wall of the air pipe main body pipeline is completely eradicated and discharged, so that the problems that dust and particulate matters are accumulated and gathered in the pipeline, the air pipe is blocked, ventilation and safe operation of equipment are influenced and the like can be prevented, and the liquidity of fluid on the inner wall of the air pipe main body is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, specifically a static electricity discharge device for air ducts. Background Technology

[0002] In industrial production, ventilation systems are a crucial component. Air ducts, as an important part of the ventilation system, ensure air quality in the production area, remove polluted gases, and maintain fresh indoor air. They are widely used in factories, workshops, chemical plants, food processing plants, pharmaceutical factories, and other places for exhaust, intake, dust collection, ventilation, and heat dissipation.

[0003] For example, patent publication number CN217300636U discloses a ventilation duct device for tunnel construction, including a ventilation duct and a dust removal device. At least one ventilation duct is installed for each tunnel. Dust removal screens and winding devices that cooperate with the dust removal screens are respectively installed at both ends of the ventilation duct. The dust removal device is movably connected inside the ventilation duct and includes a roller brush and a nozzle. The roller brush is arranged around the inner wall of the ventilation duct, and the nozzle is fixedly installed above the roller brush. The distance between the nozzle and the inner wall of the ventilation duct is greater than the distance between the roller brush and the inner wall of the ventilation duct. This invention can clean the ventilation ducts during tunnel construction, thereby improving the ventilation efficiency of the ventilation ducts.

[0004] The aforementioned technologies clean the inner walls of ducts using dust removal devices. However, in duct systems, when fluid (usually air) flows or rubs against the duct surface, a large amount of static electricity is generated. When a charged object comes into contact with a zero-potential object (grounded object) or an object with a potential difference, charge transfer occurs, which is the spark discharge phenomenon we see daily. When the charge accumulates to a certain level, it can easily cause combustion or explosion of objects inside the duct. In addition, static electricity can also cause dust and particulate matter to accumulate inside the duct, clogging the duct and affecting ventilation and the safe operation of equipment.

[0005] Therefore, a static electricity discharge device for air ducts is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and solve the problem of a large amount of static electricity generated when fluid (usually air) flows or rubs against the surface of the duct, a static electricity extraction device for ducts is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The duct electrostatic discharge device of this utility model includes a duct body. The outer wall of the duct body is provided with a plurality of first through holes. The axis lines of the plurality of first through holes are parallel to each other. The plurality of first through holes are equidistantly opened along the extension direction of the duct body. A copper braided strip is provided inside the duct body. The outer wall of the copper braided strip is provided with a plurality of second through holes. The plurality of second through holes correspond to the plurality of first through holes respectively. A threaded rod is installed through the interior of the second through holes. An installation mechanism is fitted on the outer wall of the threaded rod. The installation mechanism includes a plurality of arc-shaped support plates. A connecting rod assembly is provided between two adjacent arc-shaped support plates.

[0008] Preferably, one end of the threaded rod is fixedly connected to a limiting circular plate, the outer wall of the limiting circular plate is fitted with a hidden sleeve, and the hidden sleeve is fixedly connected to the inner arc of one of the arc-shaped support plates.

[0009] Preferably, a support spring is installed inside the hidden sleeve, and one end of the support spring is fixedly connected to the bottom surface of the limiting circular plate.

[0010] Preferably, a first roller is fixed to the center of the other end of the threaded rod via a bracket.

[0011] Preferably, the outer wall of the arc-shaped support plate is provided with mounting square holes near the corners, and a second roller is installed inside the mounting square hole by means of a bracket.

[0012] Preferably, the connecting rod assembly includes an arc-shaped sleeve, one end of which is fixedly connected to one side of one of the arc-shaped support plates.

[0013] Preferably, an arc-shaped slide rod is slidably fitted inside the arc-shaped sleeve, one end of the arc-shaped slide rod passes through the arc-shaped sleeve, and one end of the arc-shaped slide rod is fixedly connected to the side wall of another arc-shaped support plate.

[0014] Preferably, an arc-shaped spring is fitted inside the arc-shaped sleeve, and one end of the arc-shaped spring is fixedly connected to one end of the arc-shaped slide bar.

[0015] The beneficial effects of this utility model are:

[0016] In this invention, a threaded rod passing through the first and second through holes achieves relative fixation between the copper braided strip and the duct body through the cooperation of bolts, mounting mechanisms, and connecting rod assemblies. One end of the copper braided strip is grounded, and its conductive properties allow static electricity to be transferred under the conduction of the threaded rod after friction between the fluid flowing through the duct body and its inner wall. This prevents the accumulation or explosion of static electricity within the duct body wall. Furthermore, the prevention of static electricity discharge from the inner wall of the duct body also prevents dust and particulate matter from accumulating and clogging the duct, affecting ventilation and the safe operation of equipment, thus ensuring the flow of fluid within the duct body wall. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a three-dimensional view of the main body of the duct and the copper braided belt separated in this utility model;

[0020] Figure 3 This is a perspective view of the copper braided strip, threaded rod, and mounting mechanism in this utility model.

[0021] Figure 4 This is a perspective view of a partial cross-section of the arc-shaped support plate and the connecting rod assembly in this utility model;

[0022] Legend:

[0023] 1. Duct body; 11. First through hole; 2. Copper braided strip; 21. Second through hole; 3. Threaded rod; 4. Mounting mechanism; 41. Arc-shaped support plate; 5. Linkage assembly; 31. Limiting circular plate; 42. Concealed sleeve; 32. Support spring; 33. First roller; 43. Mounting square hole; 44. Second roller; 51. Arc-shaped sleeve; 52. Arc-shaped slide bar; 53. Arc-shaped spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 4 This utility model provides a static electricity discharge device for air ducts, including an air duct body 1. The outer wall of the air duct body 1 has multiple first through holes 11, the axes of which are parallel to each other and are equidistant from each other along the extension direction of the air duct body 1. A copper braided strip 2 is arranged inside the air duct body 1. The outer wall of the copper braided strip 2 has multiple second through holes 21, each corresponding to one of the first through holes 11. A threaded rod 3 is installed through the interior of each second through hole 21. An installation mechanism 4 is fitted onto the outer wall of the threaded rod 3. The installation mechanism 4 includes multiple arc-shaped support plates 41, and a connecting rod assembly 5 is arranged between two adjacent arc-shaped support plates 41. A threaded rod is installed between the first through holes 11 and the second through holes 21. The rod 3, through the cooperation of bolts, mounting mechanism 4 and connecting rod assembly 5, achieves mutual fixation between the copper braided strip 2 and the duct body 1. One end of the copper braided strip is grounded, and its conductive properties allow static electricity to be transferred under the conduction of the threaded rod 3 after the fluid flowing in the duct body 1 generates static electricity due to friction with its inner wall. This prevents the static electricity from accumulating or exploding inside the duct body 1. Multiple arc-shaped support plates 41, through the cooperation of connecting rod assembly 5 between their adjacent side walls, form a mounting mechanism 4 that supports and installs the threaded rod 3. The mounting mechanism 4 can slide along the inner wall of the duct body 1 when the threaded rod 3 has not penetrated the first through hole 11 and the second through hole 21, thus achieving relative installation with the copper braided strip 2.

[0026] like Figure 3 and Figure 4As shown, one end of the threaded rod 3 is fixedly connected to a limiting circular plate 31. A hidden sleeve 42 is fitted on the outer wall of the limiting circular plate 31. The hidden sleeve 42 is fixedly connected to the inner arc of one of the arc-shaped support plates 41. A support spring 32 is fitted inside the hidden sleeve 42. One end of the support spring 32 is fixedly connected to the bottom surface of the limiting circular plate 31. A first roller 33 is fixedly connected to the center of the other end of the threaded rod 3 via a bracket. A mounting square hole 43 is opened near the corner on the outer wall of the arc-shaped support plate 41. A second roller 44 is installed inside the mounting square hole 43 via a bracket. As the limiting circular plate 31 moves along the inner wall of the duct body 1 with the installation mechanism 4 after passing through the second through hole 21, the threaded rod 3 is first pressed down, causing it to pass through the limiting circular plate 31 towards the inner wall of the duct body 1. The device moves closer to the direction of the support spring 32, overcoming the elastic force of the support spring 32. At this time, the limiting circular plate 31 is partially hidden inside the hidden sleeve 42, and the first roller 33, which is installed at one end of the limiting circular plate 31 through the bracket, comes into contact with the inner wall of the air duct body 1. Similarly, the arc-shaped support plate 41 rolls and rubs against the inner wall of the air duct body 1 through the installation of the second roller 44 in the mounting square hole 43. At this time, during the overall movement of the copper braided belt 2, the threaded rod 3 and the mounting mechanism 4 between the inner wall of the air duct body 1, the resistance between one end of the threaded rod 3 and the inner wall of the air duct body 1 is small, and the rolling friction will not cause the threaded rod 3 to jam against the inner wall of the air duct body 1, thus increasing the rationality of the device structure.

[0027] like Figure 3 and Figure 4 As shown, the linkage assembly 5 includes an arc-shaped sleeve 51, one end of which is fixedly connected to one side of one of the arc-shaped support plates 41. An arc-shaped slide rod 52 is slidably fitted inside the arc-shaped sleeve 51, one end of which passes through the arc-shaped sleeve 51 and is fixedly connected to the side wall of another arc-shaped support plate 41. An arc-shaped spring 53 is fitted inside the arc-shaped sleeve 51, one end of which is fixedly connected to one end of the arc-shaped slide rod 52. Adjacent arc-shaped support plates 41 are linked by the sliding engagement between the mutually fitted arc-shaped sleeves 51 and the arc-shaped slide rods 52, which enables… The arc-shaped support plate 41 can adjust the relative distance within a certain range to adapt to changes in the inner diameter of the duct body 1 within a certain range, ensuring that the copper braided strip 2 can be in close contact with the inner wall of the duct body 1 to guide the discharge of static electricity inside the duct body 1. The arc-shaped spring 53 can provide elastic force to keep the arc-shaped sleeve 51 and the arc-shaped sliding rod 52 away from each other. This ensures that the arc-shaped support plate 41 always has an outward elastic force, ensuring that it is in a state of compression against the inner wall of the duct body 1, thereby achieving the purpose of fixing the copper braided strip 2 against the wall in cooperation with the duct body 1 and the installation mechanism 4.

[0028] Working principle: The threaded rod 3, passing through the first through hole 11 and the second through hole 21, is fixed to the duct body 1 by the cooperation of bolts, mounting mechanism 4, and connecting rod assembly 5. One end of the copper braided strap 2 is grounded. Its conductive properties allow static electricity to be transferred under the conduction of the threaded rod 3 after friction between the fluid flowing in the duct body 1 and its inner wall. This prevents the accumulation of static charge or explosion within the duct body 1. Multiple arc-shaped support plates 41, assembled with the connecting rod assembly 5 between their adjacent side walls, support the threaded rod 3. The mounting mechanism 4 is installed, and when the threaded rod 3 has not penetrated the first through hole 11 and the second through hole 21, the mounting mechanism 4 can slide along the inner wall of the duct body 1 to achieve relative installation with the copper braided strip 2. After the limiting circular plate 31 penetrates the second through hole 21, during the process of moving along the inner wall of the duct body 1 with the mounting mechanism 4, the threaded rod 3 is first pressed down, causing it to move towards the support spring 32 through the limiting circular plate 31, overcoming the elastic force of the support spring 32. At this time, the limiting circular plate 31 is partially hidden inside the hidden sleeve 42, and the bracket is installed at one end of the limiting circular plate 31. The first roller 33 contacts the inner wall of the duct body 1. Similarly, the arc-shaped support plate 41 rolls against the inner wall of the duct body 1 through the installation of the second roller 44 in the mounting square hole 43. During the overall movement of the copper braided belt 2, threaded rod 3, and mounting mechanism 4 between the inner wall of the duct body 1, the resistance between one end of the threaded rod 3 and the inner wall of the duct body 1 is small, and the rolling friction will not cause the threaded rod 3 to jam against the inner wall of the duct body 1. The two adjacent arc-shaped support plates 41 are linked by the sliding fit between the interlocking arc-shaped sleeve 51 and the arc-shaped sliding rod 52. The arc-shaped support plate 41 can adjust the relative distance within a certain range to adapt to changes in the inner diameter of the duct body 1 within a certain range. This ensures that the copper braided strip 2 is in close contact with the inner wall of the duct body 1 to guide the discharge of static electricity inside the duct body 1. Meanwhile, the arc-shaped spring 53 provides elastic force to keep the arc-shaped sleeve 51 and the arc-shaped sliding rod 52 away from each other. This ensures that the arc-shaped support plate 41 always has an outward elastic force, ensuring that it is in a state of compression against the inner wall of the duct body 1. This achieves the purpose of fixing the copper braided strip 2 against the wall in cooperation with the duct body 1 and the installation mechanism 4.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A static electricity discharge device for air ducts, comprising an air duct body (1), characterized in that: The outer wall of the duct body (1) is provided with a plurality of first through holes (11), the axis lines of the plurality of first through holes (11) are parallel to each other, the plurality of first through holes (11) are equidistantly opened along the extension direction of the duct body (1), a copper braided strip (2) is provided inside the duct body (1), the outer wall of the copper braided strip (2) is provided with a plurality of second through holes (21), the plurality of second through holes (21) are respectively corresponding to the plurality of first through holes (11), a threaded rod (3) is installed through the interior of the second through holes (21), an installation mechanism (4) is fitted on the outer wall of the threaded rod (3), the installation mechanism (4) includes a plurality of arc-shaped support plates (41), and a connecting rod assembly (5) is provided between two adjacent arc-shaped support plates (41).

2. The duct static electricity discharge device according to claim 1, characterized in that: One end of the threaded rod (3) is fixedly connected to a limiting circular plate (31), and a hidden sleeve (42) is fitted on the outer wall of the limiting circular plate (31). The hidden sleeve (42) is fixedly connected to the inner arc of one of the arc-shaped support plates (41).

3. The duct electrostatic discharge device according to claim 2, characterized in that: The hidden sleeve (42) is fitted with a support spring (32), one end of which is fixed to the bottom surface of the limiting circular plate (31).

4. The duct static electricity discharge device according to claim 3, characterized in that: The first roller (33) is fixed to the center of the other end of the threaded rod (3) by a bracket.

5. The duct static electricity discharge device according to claim 4, characterized in that: The outer wall of the arc-shaped support plate (41) is provided with mounting square holes (43) near the corners, and a second roller (44) is installed inside the mounting square holes (43) through a bracket.

6. The duct static electricity discharge device according to claim 1, characterized in that: The connecting rod assembly (5) includes an arc-shaped sleeve (51), one end of which is fixedly connected to one side of one of the arc-shaped support plates (41).

7. The duct static electricity discharge device according to claim 6, characterized in that: The arc-shaped sleeve (51) is fitted with an arc-shaped slide rod (52) inside. One end of the arc-shaped slide rod (52) passes through the arc-shaped sleeve (51), and the other end of the arc-shaped slide rod (52) is fixedly connected to the side wall of another arc-shaped support plate (41).

8. The duct static electricity discharge device according to claim 7, characterized in that: The arc-shaped sleeve (51) is fitted with an arc-shaped spring (53), one end of which is fixedly connected to one end of the arc-shaped slide bar (52).

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