A sealed pipe silencer

Abstract

The present application discloses a sealed pipe silencer applied to the technical field of pipe silencer equipment, which can drive the sealed rotating pipe and the discharge pipe to rotate through the gravity of the counterweight cross block when impurities in the air adhere to the inner surface of the silencer switching part, resulting in a decrease in silencer performance, so that the reminder component is inverted after the discharge pipe rotates, and the reminder light is turned on, which serves as a reminder to nearby personnel and prompts the staff to replace the silencer switching part in time. At the same time, when the sealed rotating pipe rotates, the sealing plate will rotate together and drive the auxiliary silencer cotton to rotate through the fixed rod. Since the main silencer cotton has the largest contact area with the air in the initial state, there are also more impurities on the main silencer cotton. After the auxiliary silencer cotton rotates, the contact area between the auxiliary silencer cotton and the air will be increased, which can reduce the noise reduction performance deterioration due to excessive impurities to a certain extent before the maintenance personnel come to replace the silencer switching part.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline silencer equipment, and in particular to a sealed pipeline silencer. Background Art

[0002] A silencer is a device that reduces noise in air ducts by using pipes and elbows with sound-absorbing linings, or by using pipes with sudden changes in cross-sectional area or other discontinuous acoustic impedance. The former is called a resistive silencer, while the latter is called a reactive silencer. There are also impedance-combined silencers.

[0003] When the silencer silences the propagating gas, the gas will be silenced by the silencer cotton inside the silencer. During long-term use, impurities in the gas will enter the pores of the silencer cotton, causing the pores of the silencer cotton to be blocked, resulting in a deterioration in the silencer effect of the silencer cotton.

[0004] To this end, the applicant proposed a conjecture, such as using the permeability of the silencer cotton to detect whether the pores of the silencer cotton are blocked, so that it can also be detected whether the silencer performance of the silencer cotton is deteriorating. Based on this conjecture, the applicant proposed a sealed pipe silencer. Summary of the Invention

[0005] The object of the present application is to solve the problem that impurities in the gas will enter the pores of the silencer cotton, causing the pores of the silencer cotton to be blocked, resulting in the deterioration of the silencing effect of the silencer cotton. Compared with the prior art, a sealed pipe silencer is provided, which is provided by rotating a sealing rotating tube at both ends of the silencer shell, and the sealing rotating tube is rotatably connected to the exhaust pipe, and a pressure plate is slidably connected to the inside of the sealing rotating tube on the left side, and a tension spring is fixedly connected between the pressure plate and the silencer shell, and the silencer shell is connected to a connecting tube, a movable plug is slidably connected to the inside of the connecting tube, a fixed horizontal tube is fixedly connected to the connecting tube, and an electromagnetic plug that is magnetically attracted to the movable plug is slidably connected to the inside of the fixed horizontal tube, a reset spring is fixedly connected between the electromagnetic plug and the fixed horizontal tube, a fixed sleeve is fixedly connected to the electromagnetic plug, a discharge pipe is fixedly connected to the discharge pipe, an L-shaped rod is fixedly connected to the discharge pipe, and the L-shaped rod is inserted into the fixed sleeve, and a reminder component is installed on the discharge pipe;

[0006] The silencer housing is slidably connected to a counterweight horizontal block through a limit bar, and gears are fixedly connected to the two sealed rotating tubes. The lower side wall of the counterweight horizontal block is fixedly connected to two racks that mesh with the gears respectively.

[0007] When impurities in the air adhere to the inner surface of the silencer switching component, resulting in a decrease in silencer performance, the gravity of the counterweight cross block drives the sealed rotating pipe and the exhaust pipe to rotate, so that the reminder component is inverted after the exhaust pipe rotates, and the reminder light is turned on, which serves as a reminder to nearby personnel and prompts the staff to replace the silencer switching component in time. At the same time, when the sealed rotating pipe rotates, the sealing plate will rotate together and drive the auxiliary silencer cotton to rotate through the fixed rod. Since the main silencer cotton has the largest contact area with the air in the initial state, there are also more impurities on the main silencer cotton. After the auxiliary silencer cotton rotates, the contact area between the auxiliary silencer cotton and the air will be increased, which can reduce the noise reduction performance caused by excessive impurities to a certain extent before the maintenance personnel come to replace the silencer switching component.

[0008] Optionally, two limit bars are fixedly connected to the silencer housing, and the limit bars pass through the counterweight cross block to improve the sliding stability of the counterweight cross block and the meshing stability between the rack and the gear.

[0009] Optionally, a push block is slidingly connected inside the reminder component, a reminder light is installed on the upper end of the reminder component, and a switch button electrically connected to the reminder light is installed on the inner wall of the reminder component, which can serve as a reminder to nearby personnel and prompt the staff to replace the silencer switch component in time.

[0010] Optionally, the silencer switching component includes two symmetrically arranged main silencer cottons and auxiliary silencer cottons, one end of the two auxiliary silencer cottons are inserted between the two main silencer cottons, both ends of the two auxiliary silencer cottons are fixedly connected to fixing rods, and the two sealing rotating tubes are fixedly connected to sealing plates fixedly connected to the fixing rods, and the sealing plates are in contact with the silencer outer shell, which can reduce the noise reduction performance caused by excessive impurities to a certain extent.

[0011] Optionally, both ends of the silencer shell are provided with sliding grooves matching the fixing rods to improve the stability of the main silencer cotton and the auxiliary silencer cotton during conversion.

[0012] Optionally, a mesh cylinder located inside the row tube is fixedly connected to the sealed rotating tube, and the mesh cylinder has the same diameter as the sealed rotating tube, which can effectively limit the pressure plate after the pressure plate moves.

[0013] Optionally, a connecting rod is fixedly connected between the silencer housing and the exhaust pipe to prevent the silencer housing from rotating.

[0014] Optionally, the sealed rotating pipe and the silencer housing are rotatably connected via a sealed bearing to improve the sealing performance of the silencer housing and avoid air leakage.

[0015] Optionally, an exhaust hole is drilled on the fixed horizontal cylinder, which can effectively slow down the movement speed of the electromagnetic plug and avoid the electromagnetic plug moving a large distance when the movable plug moves up quickly.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) This solution can drive the sealing rotating pipe and the exhaust pipe to rotate through the gravity of the counterweight cross block when impurities in the air adhere to the inner surface of the silencer switching component, resulting in a decrease in silencer performance, so that the reminder component is inverted after the exhaust pipe rotates, and the reminder light is turned on, which serves as a reminder to nearby personnel and prompts the staff to replace the silencer switching component in time. At the same time, when the sealing rotating pipe rotates, the sealing plate will rotate together and drive the auxiliary silencer cotton to rotate through the fixed rod. Since the main silencer cotton has the largest contact area with the air in the initial state, there are also more impurities on the main silencer cotton. After the auxiliary silencer cotton rotates, the contact area between the auxiliary silencer cotton and the air will be increased, which can reduce the situation where the noise reduction performance deteriorates due to excessive impurities to a certain extent before the maintenance personnel come to replace the silencer switching component.

[0018] (2) Two limit bars are fixedly connected to the silencer housing, and the limit bars are arranged through the counterweight cross block to improve the sliding stability of the counterweight cross block and the meshing stability between the rack and the gear.

[0019] (3) A push block is connected to the internal sliding of the reminder component, a reminder light is installed on the upper end of the reminder component, and a switch button electrically connected to the reminder light is installed on the inner wall of the reminder component, which can serve as a reminder to nearby personnel and prompt the staff to replace the silencer switch component in time.

[0020] (4) The silencer switching component includes two symmetrically arranged main silencer cottons and auxiliary silencer cottons. One end of the two auxiliary silencer cottons is inserted between the two main silencer cottons. Both ends of the two auxiliary silencer cottons are fixedly connected to fixed rods. The two sealing rotating pipes are fixedly connected to sealing plates fixedly connected to the fixed rods, and the sealing plates are in contact with the silencer shell, which can reduce the situation where the noise reduction performance deteriorates due to excessive impurities to a certain extent.

[0021] (5) Slide grooves matching the fixing rods are carved on both ends of the silencer shell to improve the stability of the main silencer cotton and the auxiliary silencer cotton during conversion.

[0022] (6) The sealed rotating tube is fixedly connected to a mesh tube located inside the row tube, and the mesh tube has the same diameter as the sealed rotating tube, which can effectively limit the pressure plate after the pressure plate moves.

[0023] (7) A connecting rod is fixedly connected between the silencer housing and the exhaust pipe to prevent the silencer housing from rotating.

[0024] (8) The sealed rotating pipe and the silencer housing are rotatably connected through a sealed bearing to improve the sealing performance of the silencer housing and avoid air leakage.

[0025] (9) There are exhaust holes on the fixed horizontal cylinder, which can effectively slow down the movement speed of the electromagnetic plug and prevent the electromagnetic plug from moving a large distance when the mobile plug moves up quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of this application;

[0027] Figure 2 This is a schematic diagram of the structure inside the sound-absorbing shell of this application;

[0028] Figure 3 This is a schematic diagram of the structure of the sealed transfer tube part of this application;

[0029] Figure 4 This is a structural diagram of the silencer switching component of this application;

[0030] Figure 5 This is a diagram of the state of the silencer housing in normal use for this application;

[0031] Figure 6 This is a state diagram of the silencer switching component of this application when it is blocked by impurities;

[0032] Figure 7 This is the status diagram of the auxiliary silencer cotton conversion for this application;

[0033] Figure 8 This application reminds you of the state diagram when the component is inverted.

[0034] Description of the numbers in the figure:

[0035] 1 Silencer shell, 2 Sealed rotating tube, 21 Pressure plate, 22 Sealing plate, 23 Net tube, 3 Connecting tube, 31 Moving plug, 4 Fixed horizontal tube, 41 Electromagnetic plug, 42 Return spring, 43 Fixed sleeve, 5 Row of pipes, 51 L-shaped rod, 52 Reminder assembly, 521 Push block, 522 Reminder light, 523 Switch button, 6 Silencer switching parts, 61 Main silencer cotton, 62 Auxiliary silencer cotton, 621 Fixed rod, 7 Counterweight horizontal block, 71 Rack, 72 Limit bar, 8 Connecting rod. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] Example 1:

[0038] This application discloses a sealed pipe silencer, see Figure 1-3, including an exhaust pipe and a silencer shell 1 installed on the exhaust pipe, the left and right ends of the silencer shell 1 are rotatably connected with a sealed rotating pipe 2, and the sealed rotating pipe 2 is rotatably connected to the exhaust pipe, the sealed rotating pipe 2 on the left is slidably connected to the inside of the pressure plate 21, and a tension spring is fixedly connected between the pressure plate 21 and the silencer shell 1, the silencer shell 1 is connected with a connecting tube 3, the connecting tube 3 is slidably connected to a movable plug 31, the connecting tube 3 is fixedly connected to a fixed horizontal cylinder 4, the fixed horizontal cylinder 4 is drilled with an exhaust hole, the fixed horizontal cylinder 4 is slidably connected to an electromagnetic plug 41 that is magnetically attracted to the movable plug 31, and the electromagnetic plug 41 is magnetically attracted to the fixed horizontal cylinder 4. A reset spring 42 is fixedly connected between the fixed horizontal cylinders 4, a fixed sleeve 43 is fixedly connected to the electromagnetic plug 41, a row pipe 5 is fixedly connected to the sealed rotating tube 2, an L-shaped rod 51 is fixedly connected to the row pipe 5, and the L-shaped rod 51 is inserted into the fixed sleeve 43, a reminder component 52 is installed on the row pipe 5, the silencer shell 1 is slidably connected to the counterweight cross block 7 through the limit bar 72, the two sealed rotating tubes 2 are fixedly connected to the gears, and the lower side wall of the counterweight cross block 7 is fixedly connected to two racks 71 that are respectively engaged with the gears, and two limit bars 72 are fixedly connected to the silencer shell 1, and the limit bar 72 passes through the counterweight cross block 7.

[0039] A push block 521 is slidably connected to the interior of the reminder component 52 , a reminder light 522 is installed on the upper end of the reminder component 52 , and a switch button 523 electrically connected to the reminder light 522 is installed on the inner wall of the reminder component 52 .

[0040] See also Figure 4-5 During normal use, the electromagnetic plug 41 is first started, and the air is discharged into the silencer switching member 6 through the exhaust pipe, so that a positive pressure is generated inside the silencer switching member 6. When the inner wall of the silencer switching member 6 is not attached with a large amount of impurities, the silencer switching member 6 has a certain permeability, so that a positive pressure is also generated inside the silencer housing 1. This pressure will first push the movable plug 31 to move up quickly, and the electromagnetic plug 41 will be driven to move slowly through the magnetic attraction between the electromagnetic plug 41 and the movable plug 31. After the movable plug 31 moves to the highest point, the movable plug 31 is no longer within the magnetic attraction range of the electromagnetic plug 41, resulting in the inability to drive the electromagnetic plug 41 to continue moving and is reset under the action of the reset spring 42. Figure 5 As shown, the pressure inside the muffler housing 1 pushes the pressure plate 21 to move, and eventually the air is discharged from the sealed rotary pipe 2 .

[0041] As the use time goes by, impurities in the air will adhere to the inner surface of the silencer switching member 6, resulting in a decrease in the permeability of the silencer switching member 6. When the exhaust pipe discharges the air into the silencer switching member 6, the air inside the silencer switching member 6 cannot be quickly transmitted to the inside of the silencer housing 1 due to the decrease in permeability. At this time, the pressure inside the silencer switching member 6 is greater than the pressure inside the silencer housing 1, which causes the pressure plate 21 to move earlier than the movable plug 31, making it impossible for the movable plug 31 to support itself to move to the highest height through pressure, resulting in the movable plug 31 always being at the lowest height or middle height, that is, always being within the magnetic attraction range of the electromagnetic plug 41, giving the electromagnetic plug 41 sufficient time to move;

[0042] It is worth noting that the exhaust holes drilled on the fixed horizontal cylinder 4 will discharge the air inside the fixed horizontal cylinder 4 through the exhaust holes when the electromagnetic plug 41 moves. The small diameter of the exhaust holes can effectively slow down the movement speed of the electromagnetic plug 41, avoiding the electromagnetic plug 41 from moving a large distance when the movable plug 31 moves upward quickly.

[0043] See also Figure 8 , the electromagnetic plug 41 drives the fixed sleeve 43 to move, so that the L-shaped rod 51 is separated from the limit of the fixed sleeve 43. At this time, under the gravity of the counterweight horizontal block 7, the engagement of the gear and the rack 71 drives the sealed rotating tube 2 and the discharge tube 5 to rotate, so that the reminder component 52 is inverted after the discharge tube 5 rotates, as shown in FIG. Figure 8 As shown, at this time, the push block 521 presses the switch button 523 under gravity, thereby turning on the light of the reminder light 522, which serves as a reminder to nearby personnel and prompts the staff to replace the silencer switch component 6 in time.

[0044] Example 2:

[0045] Compared with Example 1, please refer to Figure 6-7 The main function of the muffler switching member 6 added in this embodiment is to improve the noise reduction capability to a certain extent when the sealing plate 22 rotates. The specific implementation is as follows:

[0046] The silencer switching component 6 includes two symmetrically arranged main silencer cottons 61 and auxiliary silencer cottons 62. One end of the two auxiliary silencer cottons 62 is inserted between the two main silencer cottons 61. Both ends of the two auxiliary silencer cottons 62 are fixedly connected to fixed rods 621. The two sealed rotating tubes 2 are fixedly connected to sealing plates 22 fixedly connected to the fixing rods 621, and the sealing plates 22 are in contact with the silencer shell 1. The left and right ends of the silencer shell 1 are both provided with sliding grooves matching the fixing rods 621. A connecting rod 8 is fixedly connected between the silencer shell 1 and the exhaust pipe, and the sealed rotating tube 2 and the silencer shell 1 are rotatably connected through a sealed bearing.

[0047] When the sealing rotating tube 2 rotates, the sealing plate 22 rotates together and drives the auxiliary silencer cotton 62 to rotate through the fixing rod 621. Figure 7 As shown, since the main silencer cotton 61 has the largest contact area with the air in the initial state, there are also more impurities on the main silencer cotton 61. After the auxiliary silencer cotton 62 rotates, the contact area between the auxiliary silencer cotton 62 and the air will be increased. Before the maintenance personnel come to replace the silencer switching component 6, the noise reduction performance deteriorates due to excessive impurities to a certain extent.

[0048] The sealed rotating tube 2 is fixedly connected to a mesh tube 23 located inside the row tube 5 , and the mesh tube 23 has the same diameter as the sealed rotating tube 2 , which can effectively limit the pressure plate 21 after the pressure plate 21 moves.

[0049] The above are only preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A sealed pipe silencer, comprising an exhaust pipe and a silencer housing (1) mounted on the exhaust pipe, characterized in that: The left and right ends of the silencer housing (1) are both rotatably connected to sealed rotating tubes (2), and the sealed rotating tube (2) is rotatably connected to the exhaust pipe. The left sealed rotating tube (2) is internally slidably connected to a pressure plate (21), and a tension spring is fixedly connected between the pressure plate (21) and the silencer housing (1). The silencer housing (1) is connected to a connecting tube (3), and a movable plug (31) is slidably connected to the connecting tube (3). A fixed horizontal tube (4) is fixedly connected to the connecting tube (3). An electromagnetic plug (41) that is magnetically attracted to the movable plug (31) is slidably connected inside the horizontal cylinder (4), a return spring (42) is fixedly connected between the electromagnetic plug (41) and the fixed horizontal cylinder (4), a fixed sleeve (43) is fixedly connected to the electromagnetic plug (41), a row pipe (5) is fixedly connected to the sealed rotating tube (2), an L-shaped rod (51) is fixedly connected to the row pipe (5), and the L-shaped rod (51) is plugged into the fixed sleeve (43), and a reminder component (52) is installed on the row pipe (5); The muffler housing (1) is slidably connected to a counterweight horizontal block (7) via a limit bar (72), and the two sealed rotating tubes (2) are fixedly connected to gears. The lower side wall of the counterweight horizontal block (7) is fixedly connected to two racks (71) respectively meshing with the gears. The muffler further comprises a muffler switching member (6), the muffler switching member (6) comprising two symmetrically arranged main muffler cottons (61) and auxiliary muffler cottons (62), one end of each of the two auxiliary muffler cottons (62) being inserted between the two main muffler cottons (61), both ends of the two auxiliary muffler cottons (62) being fixedly connected to a fixing rod (621), the two sealing rotating tubes (2) being fixedly connected to a sealing plate (22) fixedly connected to the fixing rod (621), and the sealing plate (22) being in contact with the muffler housing (1), and the left and right ends of the muffler housing (1) being provided with a sliding groove matching the fixing rod (621).

2. The sealed pipe muffler according to claim 1, characterized in that: Two limit bars (72) are fixedly connected to the muffler housing (1), and the limit bars (72) are arranged through the counterweight horizontal block (7).

3. The sealed pipe muffler according to claim 1, characterized in that: A push block (521) is slidably connected inside the reminder component (52), a reminder light (522) is installed on the upper end of the reminder component (52), and a switch button (523) electrically connected to the reminder light (522) is installed on the inner wall of the reminder component (52).

4. The sealed pipe muffler according to claim 1, characterized in that: The sealed rotating tube (2) is fixedly connected to a net cylinder (23) located inside the row tube (5), and the net cylinder (23) and the sealed rotating tube (2) have the same diameter.

5. The sealed pipe muffler according to claim 1, characterized in that: A connecting rod (8) is fixedly connected between the silencer housing (1) and the exhaust pipe.

6. The sealed pipe muffler according to claim 1, characterized in that: The sealed rotating pipe (2) and the silencer housing (1) are rotationally connected via a sealed bearing.

7. The sealed pipe muffler according to claim 1, characterized in that: An exhaust hole is drilled on the fixed horizontal cylinder (4).

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