A noise reducer inner tube spraying device

Abstract

A kind of inside tube spraying device of noise reducer, including base, vertical plate is welded on base, a pair of fixed ring is welded on the upper end of vertical plate, outer tube cover is welded in fixed ring, the end of outer tube cover is shaped with convex edge, end disc is installed on convex edge by screw, rotating tube is coaxially and rotatably arranged on end disc, a pair of communication pipe is communicated on rotating tube, rotating plate is fixed on the inner side end of rotating tube, outer tube and inner tube are fixed on the other end of rotating plate, a plurality of spray heads are fixed on the inner wall of outer tube and the outer wall of inner tube.The utility model discloses when spraying, a more closed chamber is formed by outer tube cover and the sealing disc connected and fixed thereon, so that, paint can be avoided to splash in the process of spraying, to avoid causing pollution to environment.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction device processing technology, and in particular to a noise reduction device inner tube spraying device. Background Technology

[0002] Tubular noise reducers are a common type of noise reducer installed at the end of an exhaust pipe. Inside this noise reducer are components such as... Figure 6 The pipe fitting shown has multiple micropores on its circumference. To improve its corrosion resistance, a coating is usually applied to both the inner and outer walls. Common coating methods include dip coating or spray coating. However, due to the presence of micropores in the pipe fitting, dip coating can easily lead to clogging. Therefore, spray coating is used. However, during the spray coating process, paint splatter often occurs, causing environmental pollution. Furthermore, spray coating also suffers from poor uniformity of coating thickness. Utility Model Content

[0003] This utility model provides a noise reduction device for spraying inner tubes, which solves the shortcomings of the prior art and addresses the problems of paint splashing and poor thickness uniformity during spraying, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0005] A noise reduction device for spraying inner tubes includes a base, a vertical plate welded to the base, a pair of fixing rings welded to the upper end of the vertical plate, an outer tube cover welded inside the fixing rings, a flange formed at one end of the outer tube cover, an end plate mounted on the flange by screws, a rotating tube coaxially and rotatably mounted on the end plate, a pair of connecting pipes connected to the rotating tube, a rotating plate fixed to the inner end of the rotating tube, an outer tube and an inner tube fixed to the other end of the rotating plate, a gap between the outer tube and the inner tube, multiple nozzles fixed to the inner wall of the outer tube and the outer wall of the inner tube, connecting pipes respectively connected to the outer tube and the inner tube, a connecting sleeve rotatably mounted on the outer end of the rotating tube, an end tube connected to the connecting sleeve by threads, and an inlet pipe connected to the outer end of the end tube.

[0006] Furthermore, a connecting screw is provided on the inner end of the rotating tube, and the rotating plate is sleeved on the connecting screw and fixed by a threaded connecting nut.

[0007] Furthermore, a rocker plate is fixed and welded onto the rotating tube, and a rocker handle is welded to the other end of the rocker plate.

[0008] Furthermore, the outer circumference of the other end of the outer tube cover is formed with multiple insertion platforms, and the other end of the outer tube cover is provided with a sealing plate. Multiple external guide holes are opened on the sealing plate, and connecting screws are movably installed in the external guide holes. The inner end of each pair of connecting screws is connected to an inner pressure plate by threads. A limit rod is connected to the inner pressure plate by threads. The limit rod and the insertion platform are in a one-to-one correspondence. The limit rod is inserted into the insertion platform.

[0009] Furthermore, the sealing disc has multiple pairs of inner guide holes, and an inner screw is movably installed in the inner guide hole. The outer end of the inner screw is connected to an outer moving plate by a thread, and a lead screw is connected to the outer moving plate by a thread. An end plate is rotatably installed on the outer end of the lead screw, and the end plate is welded to the outer wall of the sealing disc. The end of the lead screw is provided with an end head, and an inner ring is connected to the lead screw by a pin. The inner ring and the end head are distributed on the inner and outer sides of the end plate. The inner end of the inner screw is connected to an inner support arc plate by a thread. The inner support arc plate and the inner pressure plate are both located on the inner side of the sealing disc.

[0010] The advantages of the above technical solution are:

[0011] This invention creates a relatively sealed chamber during spraying by using an outer tube cover and a sealing plate fixed thereon. This prevents paint from splashing out during the spraying process, thus avoiding environmental pollution. It also has the advantage of easy sealing of the sealing plate, which can be fixed simply by moving the limiting rod inward and inserting it into the insertion platform.

[0012] This invention enables spraying by rotating the outer and inner tubes. If the axial direction of the inner tube coincides with the axial direction of the rotating tube, the distance between the inner and outer tubes and the inner and outer walls of the fitting can be ensured to be equal when the inner and outer tubes rotate. If the smoothness of the rotation is ensured, the uniformity of the paint thickness after spraying can be guaranteed.

[0013] This utility model uses a movable inner support arc plate, which can act on the inner wall of the pipe to achieve the purpose of fixing the pipe. Attached Figure Description

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0015] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0016] Figure 2 The three-dimensional structure of the sealing disc is shown. Figure 1 .

[0017] Figure 3 The three-dimensional structure of the sealing disc is shown. Figure 2 .

[0018] Figure 4 The internal three-dimensional structure of one embodiment is shown. Figure 1 .

[0019] Figure 5 The internal three-dimensional structure of one embodiment is shown. Figure 2 .

[0020] Figure 6 A three-dimensional structural diagram of the inner tube of the noise reducer is shown. Detailed Implementation

[0021] like Figures 1-5 As shown, a noise reduction device inner tube spraying device includes a base 1, a vertical plate 2 welded to the base 1, a pair of fixing rings 20 welded to the upper end of the vertical plate 2, an outer tube cover 3 welded inside the fixing rings 20, a flange 30 formed at one end of the outer tube cover 3, an end plate 301 mounted on the flange 30 by screws, a rotating tube 300 coaxially and rotatably mounted on the end plate 301, a pair of connecting tubes 33 connected to the rotating tube 300, and a rotating plate 32 fixed to the inner end of the rotating tube 300. The other end is fixed with an outer tube 34 and an inner tube 35, with a gap between them. Multiple nozzles are fixed on the inner wall of the outer tube 34 and the outer wall of the inner tube 35. A connecting pipe 33 is connected to the outer tube 34 and the inner tube 35 respectively. A connecting sleeve 36 is rotatably provided at the outer end of the rotating tube 300. An outer protruding ring is provided at the outer end of the rotating tube 300, located inside the connecting sleeve. An end tube 37 is threadedly connected inside the connecting sleeve 36, and an inlet pipe 38 is connected to the outer end of the end tube 37. Specifically, a connecting screw 31 is provided at the inner end of the rotating tube 300, and a rotating plate 32 is sleeved on the connecting screw 31 and fixed by a threaded nut. Specifically, a rocker plate 39 is fixed and welded onto the rotating tube 300, and a rocker handle 40 is welded to the other end of the rocker plate 39.

[0022] The outer tube cover 3 has multiple insertion platforms formed on its outer periphery at the other end. The outer tube cover 3 also has a sealing plate 5 on its outer side. The sealing plate 5 has multiple external guide holes 50. A connecting screw 51 is movably installed in the external guide hole 50. The inner end of each pair of connecting screws 51 is connected to an inner pressure plate 530 by threads. A limit rod 53 is connected to the inner pressure plate 53 by threads. The limit rod 53 and the insertion platform are in a one-to-one correspondence. The limit rod 53 is inserted into the insertion platform. The sealing disc 5 has multiple pairs of inner guide holes 54. An inner screw 55 is movably installed in the inner guide hole 54. An outer moving plate 56 is threaded to the outer end of the inner screw 55. A lead screw 57 is threaded to the outer moving plate 56. An end plate 550 is rotatably installed at the outer end of the lead screw 57. The end plate 550 is welded to the outer wall of the sealing disc 5. An end head 58 is provided at the end of the lead screw 57. An inner ring 59 is connected to the lead screw 57 by a pin. The inner ring 59 and the end head 58 are distributed on the inner and outer sides of the end plate 550. An inner support arc plate 60 is threaded to the inner end of the inner screw 55. The inner support arc plate 60 and the inner pressure plate 530 are both located on the inner side of the sealing disc 5.

[0023] In this embodiment, during operation, the operator places the pipe fitting onto the inner support arc plate 60 and then rotates the screw 57 to move the inner support arc plate 60 outward by an equal distance, so that the outer wall of the inner support arc plate 60 abuts against the inner wall of the pipe fitting. The axial direction of the fixed pipe fitting coincides with the axial direction of the sealing plate 5. Then, the pipe fitting is inserted into the outer pipe cover 3, and the pipe fitting wall is inserted into the gap between the outer pipe 34 and the inner pipe 35. Then, the limiting rod 53 is moved inward and inserted into the insertion platform.

[0024] The operator then pumps pressurized paint into the rotating tube 300. The paint then enters the outer tube 34 and inner tube 35 through the connecting tube 33 and is sprayed out from the nozzle. During the spraying process, the rotating tube 300 and the outer tube 34 and inner tube 35 are rotated at a constant speed by the rocker plate 39, which ensures the uniformity of the coating thickness.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A noise reduction device inner tube spraying apparatus, characterized in that, Includes a base (1), on which a vertical plate (2) is welded. A pair of fixing rings (20) are welded to the upper end of the vertical plate (2). An outer tube cover (3) is welded inside the fixing rings (20). One end of the outer tube cover (3) is formed with a flange (30). An end plate (301) is installed on the flange (30) by screws. A rotating tube (300) is coaxially and rotatably provided on the end plate (301). A pair of connecting tubes (33) are connected to the rotating tube (300). A rotating plate (32) is fixed to the inner end of the rotating tube (300). The other end of the rotating plate (32) is fixed with an outer tube (34) and an inner tube (35). There is a gap between the outer tube (34) and the inner tube (35). Multiple nozzles are fixed on the inner wall of the outer tube (34) and the outer wall of the inner tube (35). The connecting pipe (33) is connected to the outer tube (34) and the inner tube (35) respectively. The outer end of the rotating pipe (300) is provided with a connecting sleeve (36). The connecting sleeve (36) is connected to the end tube (37) by a thread. The outer end of the end tube (37) is connected to the liquid inlet pipe (38).

2. The noise reduction device inner tube spraying apparatus according to claim 1, characterized in that, The inner end of the rotating tube (300) is provided with a connecting screw (31), and the rotating plate (32) is sleeved on the connecting screw (31) and fixed by a threaded nut.

3. The noise reduction device inner tube spraying apparatus according to claim 1, characterized in that, A rocker plate (39) is fixed and welded to the rotating tube (300), and a rocker handle (40) is welded to the other end of the rocker plate (39).

4. The noise reduction device inner tube spraying apparatus according to claim 1, characterized in that, The outer tube cover (3) has multiple insertion platforms formed on the outer periphery of the other end. The outer tube cover (3) has a sealing plate (5) on the other end. The sealing plate (5) has multiple external guide holes (50). The external guide holes (50) are equipped with connecting screws (51). The inner end of each pair of connecting screws (51) is connected to an inner pressure plate (530) by threads. The inner pressure plate (530) is connected to a limit rod (53) by threads. The limit rod (53) and the insertion platform are in a one-to-one correspondence. The limit rod (53) is inserted into the insertion platform.

5. The noise reduction device inner tube spraying apparatus according to claim 4, characterized in that, The sealing plate (5) has multiple pairs of inner guide holes (54). An inner screw (55) is movably installed in the inner guide hole (54). An outer moving plate (56) is connected to the outer end of the inner screw (55) by a thread. A lead screw (57) is connected to the outer moving plate (56) by a thread. An end plate (550) is rotatably installed on the outer end of the lead screw (57). The end plate (550) is welded to the outer wall of the sealing plate (5). An end head (58) is provided at the end of the lead screw (57). An inner ring (59) is connected to the lead screw (57) by a pin. The inner ring (59) and the end head (58) are distributed on the inner and outer sides of the end plate (550). An inner support arc plate (60) is connected to the inner end of the inner screw (55) by a thread. The inner support arc plate (60) and the inner pressure plate (530) are both located on the inner side of the sealing plate (5).

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