Winding type silencer

Abstract

The utility model relates to a winding type silencer, which belongs to the technical field of winding type silencers and comprises a winding type silencer body, a framework net arranged on the winding type silencer body, two end covers, a first annular groove, a second annular groove and a shell, and the interiors of the two first annular grooves and the interiors of the two second annular grooves are each fixedly connected with two rubber rings, two upper clamping plates are placed at the top of the outer peripheral wall of the shell, and two lower clamping plates are placed at the bottom of the outer peripheral wall of the shell. According to the winding type silencer, the shell is fixed through clearance fit between a positioning rod and a positioning hole, a worker can disassemble and assemble the shell conveniently, devices in the winding type silencer body can be replaced conveniently, meanwhile, under the action of an upper clamping plate and a lower clamping plate, the shell is limited, and the stability of the shell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mufflers, in particular to a winding type muffler. Background Art

[0002] A silencer is a noise reduction device that can be used in air flow ducts that also transmit noise. It can use pipes and elbows with sound-absorbing linings, or pipes with sudden changes in cross-sectional area and other discontinuous acoustic impedance to attenuate or reflect the noise in the duct. The former is called a resistive silencer, and the latter is called a reactive silencer. There are also impedance composite silencers.

[0003] Chinese patent CN212230067U discloses a winding type silencer, which discloses a technical solution for improving the silencing effect and solves the problem that the silencing effect of the existing silencer is not ideal.

[0004] When the device is in use, the sound insulation component, the baffle and the shell improve the sound insulation effect, but the two ends of the shell are respectively embedded and fixed in the inside of the first annular groove. When the baffle is damaged, it is not convenient to disassemble and replace it, which reduces the use effect. Therefore, a winding silencer is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a wrap-around silencer having the advantage of convenient disassembly, assembly and replacement, and solves the problem that when the device is in use, the sound insulation effect is improved through the action of the sound insulation component, the baffle and the outer shell, but the two ends of the outer shell are respectively embedded and fixed in the interior of the first annular groove. When the baffle is damaged, it is not convenient to disassemble and replace it, thereby reducing the use effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wrap-around silencer, comprising a wrap-around silencer body and a skeleton net arranged on the wrap-around silencer body, two end covers, a first annular groove and a second annular groove arranged on the two end covers, and an outer shell, wherein two rubber rings are fixedly connected to the inside of the two first annular grooves and the two second annular grooves.

[0007] Two upper clamps are placed at the top of the outer peripheral wall of the shell, and two lower clamps are placed at the bottom of the outer peripheral wall of the shell. The two upper clamps are distributed one-to-one with the two lower clamps, and the opposite sides of the upper clamps and the lower clamps are fixedly connected with positioning rods. The top and bottom surfaces of the shell are provided with four positioning holes, and the positioning rods extend to the inside of the positioning holes.

[0008] A driving assembly is provided between the two end covers to drive the positioning rod to move.

[0009] A supporting assembly is provided between the two end covers to limit the driving assembly.

[0010] Furthermore, the first annular groove and the second annular groove are both in contact with the rubber ring, and the upper clamping plate and the lower clamping plate are both semicircular plates.

[0011] Furthermore, the upper clamping plate and the lower clamping plate are fitted together, and the positioning rod and the positioning hole are clearance-matched.

[0012] Furthermore, the driving assembly includes four mounting plates, and the four mounting plates are respectively fixedly connected to the top and bottom surfaces of the two end covers, and the four mounting plates are movably connected to the driving rods on one side close to the outer shell through bearings, and the four driving rods are movably connected to the side close to the outer shell with a screw having one end extending to the inside of the driving rod, and the four screws are respectively fixedly connected to the two upper clamping plates and the two lower clamping plates, and the insides of the two first annular grooves and the two second annular grooves are fixedly connected with two limiting rods, and the left and right sides of the skeleton net and the outer shell are provided with two limiting holes, and the limiting rods extend to the inside of the limiting holes.

[0013] Furthermore, the eight limiting rods are respectively matched with eight limiting holes with clearances, and the mounting plate is an L-shaped plate.

[0014] Furthermore, threaded holes are provided on a side surface of the four driving rods close to the shell, and the four screw rods extend into the inside of the four threaded holes respectively and are threadedly connected thereto.

[0015] Furthermore, the support assembly includes four support plates, and the four support plates are respectively fixedly connected to two upper clamps and a side surface of two lower clamps away from the outer shell. The side surfaces of the four mounting plates close to the driving rod are all provided with support grooves, and the four support plates respectively extend to the interior of the four support grooves.

[0016] Furthermore, the support plate is an L-shaped plate, and the support plate and the support groove are slidably connected.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. The wrap-around silencer fixes the shell through the clearance fit between the positioning rod and the positioning hole, which is convenient for the staff to disassemble and assemble the shell and replace the components inside the wrap-around silencer body. At the same time, the shell is restricted by the upper and lower clamping plates to improve the stability of the shell;

[0019] 2. The winding silencer drives the positioning rod to move through the threaded connection between the driving rod and the screw rod, which is convenient for the staff to operate. The upper clamping plate and the lower clamping plate are supported by the sliding connection between the supporting plate and the supporting groove to improve stability. At the same time, the first annular groove and the second annular groove are sealed by the action of the rubber ring to improve the sound elimination effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 for Figure 1 A is a magnified schematic diagram of the structure;

[0022] Figure 3 It is a left side schematic diagram of the upper clamping plate and the lower clamping plate in the structure of the utility model;

[0023] Figure 4 It is a front schematic diagram of the structure of the utility model.

[0024] In the figure: 1 winding type silencer body, 2 end cover, 3 second annular groove, 4 skeleton net, 5 first annular groove, 6 shell, 7 mounting plate, 8 driving rod, 9 screw, 10 upper clamping plate, 11 positioning hole, 12 positioning rod, 13 limiting hole, 14 limiting rod, 15 rubber ring, 16 support plate, 17 support groove, 18 lower clamping plate. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1: Please refer to Figure 1-4 A wrap-around silencer in this embodiment includes a wrap-around silencer body 1 and a skeleton net 4 arranged on the wrap-around silencer body 1, two end covers 2, a first annular groove 5 and a second annular groove 3 and an outer shell 6 arranged on the two end covers 2, and two rubber rings 15 are fixedly connected to the inside of the two first annular grooves 5 and the two second annular grooves 3.

[0027] Two upper clamps 10 are placed at the top of the outer wall of the outer shell 6, and two lower clamps 18 are placed at the bottom of the outer wall of the outer shell 6. The two upper clamps 10 are distributed one-to-one with the two lower clamps 18, and the opposite sides of the upper clamps 10 and the lower clamps 18 are fixedly connected with positioning rods 12. Four positioning holes 11 are opened on the top and bottom surfaces of the outer shell 6, and the positioning rods 12 extend to the inside of the positioning holes 11.

[0028] The first annular groove 5 and the second annular groove 3 are both fitted with the rubber ring 15 , the upper clamping plate 10 and the lower clamping plate 18 are both semicircular plates, the upper clamping plate 10 and the lower clamping plate 18 are fitted, and the positioning rod 12 and the positioning hole 11 are clearance-matched.

[0029] Specifically, the end cover 2 is pushed so that the skeleton net 4 and the outer shell 6 are respectively inserted into the second annular groove 3 and the first annular groove 5, and the second annular groove 3 and the first annular groove 5 are sealed by the action of the rubber ring 15. The upper clamping plate 10 and the lower clamping plate 18 are fitted with the outer shell 6, and the positioning rod 12 is inserted into the positioning hole 11. The outer shell 6 is fixed by the clearance fit between the positioning rod 12 and the positioning hole 11.

[0030] Example 2: Please refer to Figure 1-4 In this embodiment, on the basis of embodiment 1, a driving assembly is provided between the two end covers 2, and the driving assembly includes four mounting plates 7, and the four mounting plates 7 are respectively fixedly connected to the top and bottom surfaces of the two end covers 2, and the four mounting plates 7 are movably connected to the driving rod 8 on the side close to the outer shell 6 through a bearing, and the four driving rods 8 are movably connected to the side close to the outer shell 6 with one end extending to the inside of the driving rod 8. The four screws 9 are respectively fixedly connected to the two upper clamping plates 10 and the two lower clamping plates 18, and the insides of the two first annular grooves 5 and the two second annular grooves 3 are fixedly connected with two limiting rods 14, and the left and right sides of the skeleton net 4 and the outer shell 6 are provided with two limiting holes 13, and the limiting rods 14 extend to the inside of the limiting holes 13.

[0031] Among them, the eight limiting rods 14 are respectively matched with the eight limiting holes 13 with clearances, the mounting plate 7 is an L-shaped plate, the four driving rods 8 are each provided with threaded holes on one side close to the outer shell 6, and the four screws 9 respectively extend into the inside of the four threaded holes and are threadedly connected thereto.

[0032] Specifically, the limiting rod 14 is inserted into the limiting hole 13 to limit the skeleton net 4 and the shell 6, and the driving rod 8 is rotated to rotate the driving rod 8. Through the threaded connection between the driving rod 8 and the screw rod 9, the screw rod 9 drives the positioning rod 12 to move.

[0033] Example 3: Please refer to Figure 1-4In this embodiment, on the basis of Embodiment 1 and Embodiment 2, a support assembly is provided between the two end covers 2, and the support assembly includes four support plates 16. The four support plates 16 are respectively fixedly connected to the two upper clamping plates 10 and the two lower clamping plates 18 on the side away from the outer shell 6. The side surfaces of the four mounting plates 7 close to the driving rod 8 are all provided with support grooves 17, and the four support plates 16 extend to the inside of the four support grooves 17 respectively.

[0034] The support plate 16 is an L-shaped plate, and the support plate 16 and the support groove 17 are slidably connected.

[0035] Specifically, the upper clamping plate 10 and the lower clamping plate 18 are supported by the sliding connection between the support plate 16 and the support groove 17, thereby improving the stability of the upper clamping plate 10 and the lower clamping plate 18.

[0036] The working principle of the above embodiment is:

[0037] Push the end cover 2 to insert the skeleton net 4 and the shell 6 into the second annular groove 3 and the first annular groove 5 respectively, and insert the limiting rod 14 into the limiting hole 13 to limit the skeleton net 4 and the shell 6. Under the action of the rubber ring 15, the second annular groove 3 and the first annular groove 5 are sealed, and then the driving rod 8 is rotated to rotate the driving rod 8. Through the threaded connection between the driving rod 8 and the screw 9 and the sliding connection between the support plate 16 and the support groove 17, the screw 9 drives the positioning rod 12 to move, and the upper clamping plate 10 and the lower clamping plate 18 are fitted with the shell 6. The positioning rod 12 is inserted into the positioning hole 11, and the shell 6 is fixed by the clearance fit between the positioning rod 12 and the positioning hole 11.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] 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 wrap-around silencer, comprising a wrap-around silencer body (1), a skeleton net (4) arranged on the wrap-around silencer body (1), two end covers (2), a first annular groove (5) and a second annular groove (3) arranged on the two end covers (2), and a shell (6), characterized in that: Two rubber rings (15) are fixedly connected inside the two first annular grooves (5) and the two second annular grooves (3); Two upper clamping plates (10) are placed at the top of the outer peripheral wall of the shell (6), and two lower clamping plates (18) are placed at the bottom of the outer peripheral wall of the shell (6). The two upper clamping plates (10) are respectively distributed in a one-to-one correspondence with the two lower clamping plates (18). The opposite sides of the upper clamping plates (10) and the lower clamping plates (18) are fixedly connected with positioning rods (12). The top surface and the bottom surface of the shell (6) are both provided with four positioning holes (11), and the positioning rods (12) extend to the inside of the positioning holes (11); A driving assembly is provided between the two end covers (2), and a supporting assembly is provided between the two end covers (2).

2. A wrap-around silencer according to claim 1, characterized in that: The first annular groove (5) and the second annular groove (3) are both in contact with the rubber ring (15), and the upper clamping plate (10) and the lower clamping plate (18) are both semicircular plates.

3. A wrap-around silencer according to claim 2, characterized in that: The upper clamping plate (10) and the lower clamping plate (18) are fitted together, and the positioning rod (12) and the positioning hole (11) are clearance-matched.

4. A wrap-around silencer according to claim 1, characterized in that: The driving assembly comprises four mounting plates (7), the four mounting plates (7) being fixedly connected to the top surface and the bottom surface of the two end covers (2), respectively; the side surfaces of the four mounting plates (7) close to the outer shell (6) are movably connected to the driving rod (8) through a bearing; the side surfaces of the four driving rods (8) close to the outer shell (6) are movably connected to a screw rod (9) having one end extending into the interior of the driving rod (8); the four screw rods (9) are respectively fixedly connected to two upper clamping plates (10) and two lower clamping plates (18); the interiors of the two first annular grooves (5) and the two second annular grooves (3) are fixedly connected to two limiting rods (14); the left side and the right side surfaces of the skeleton net (4) and the outer shell (6) are provided with two limiting holes (13), and the limiting rods (14) extend into the interiors of the limiting holes (13).

5. A wrap-around silencer according to claim 4, characterized in that: The eight limiting rods (14) are respectively clearance-matched with the eight limiting holes (13), and the mounting plate (7) is an L-shaped plate.

6. A wrap-around silencer according to claim 5, characterized in that: The four driving rods (8) are each provided with a threaded hole on a side surface close to the housing (6), and the four screw rods (9) respectively extend into the inside of the four threaded holes and are threadedly connected thereto.

7. A wrap-around silencer according to claim 4, characterized in that: The support assembly comprises four support plates (16), wherein the four support plates (16) are respectively fixedly connected to two upper clamping plates (10) and two lower clamping plates (18) on a side away from the housing (6), and the four mounting plates (7) are each provided with a support groove (17) on a side close to the driving rod (8), and the four support plates (16) respectively extend to the inside of the four support grooves (17).

8. A wrap-around silencer according to claim 7, characterized in that: The support plate (16) is an L-shaped plate, and the support plate (16) and the support groove (17) are slidably connected.

Images