Noise reduction device for claw type vacuum pump outlet collecting tank

Abstract

The utility model discloses a claw type vacuum pump outlet collecting tank noise reduction device which comprises a butt joint pipe, a collecting tank is welded to the tail end of the butt joint pipe, an exhaust pipe, a drainage pipe, a front protective cover and a rear protective cover are arranged on the collecting tank, the exhaust pipe is welded to the middle of the top of the collecting tank, and the drainage pipe is welded to the middle of the bottom of the collecting tank. The front end of the outer side of the collecting tank is sleeved with the front protective cover, and the rear end of the outer side of the collecting tank is sleeved with the rear protective cover. According to the utility model, noise reduction treatment can be easily carried out on the claw vacuum pump outlet collecting tank, and the noise pollution of the working environment is effectively reduced.

Description

Technical Field

[0001] The utility model relates to a noise reduction device for a collecting tank at an outlet of a claw type vacuum pump, belonging to the technical field of claw type vacuum pumps. Background Art

[0002] The claw vacuum pump is a variable displacement vacuum pump with a claw-shaped rotor. The noise of the claw vacuum pump during operation reaches 75 decibels, which seriously affects the health and normal work of employees. In order to solve the above problems, a new technical solution is provided. Utility Model Content

[0003] The utility model aims to provide a noise reduction device for a collection tank at an outlet of a claw type vacuum pump, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a claw-type vacuum pump outlet collecting tank noise reduction device, including a butt-joint pipe, a collecting tank is welded to the end of the butt-joint pipe, an exhaust pipe, a drain pipe, a front protective cover and a rear protective cover are arranged on the collecting tank, the exhaust pipe is welded to the middle of the top of the collecting tank, the drain pipe is welded to the middle of the bottom of the collecting tank, the front protective cover is mounted on the front end of the outer side of the collecting tank, and the rear protective cover is mounted on the rear end of the outer side of the collecting tank.

[0005] Preferably, the front protective cover is provided with a docking hole and a front docking seat, the docking hole is opened at the rear end corner inside the front protective cover, the front docking seat is integrally formed and connected to the rear end corner outside the front protective cover, and a docking screw hole is opened in the middle of the front docking seat.

[0006] Preferably, the rear protective cover is provided with a docking shaft, a rear docking seat and a spray hole, the docking shaft is integrally formed and connected to the front end corner inside the rear protective cover, the rear docking seat is integrally formed and connected to the front end corner outside the rear protective cover, and the spray hole is opened in the middle above the rear end of the rear protective cover.

[0007] Preferably, the docking shaft is embedded in the docking hole.

[0008] Preferably, a countersunk hole is provided in the middle of the rear docking seat, and the countersunk hole is fixedly connected to the docking screw hole by a hexagon socket screw.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the countersunk hole of the utility model is fixedly connected to the docking screw hole by an inner hexagon screw, so that the front protective cover and the rear protective cover can be fixedly connected together; the docking shaft is nested in the docking hole, so that the front protective cover and the rear protective cover can be docked together; the spray hole is opened in the middle above the rear end of the rear protective cover, and sound insulation material can be easily sprayed into the inside of the protective cover; based on the above, the utility model can easily reduce the noise of the claw vacuum pump outlet collection tank, effectively reducing the noise pollution in the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the collection tank of the utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the protective cover of the utility model;

[0013] In the figure: 1- docking pipe; 2- collection tank; 3- exhaust pipe; 4- drain pipe; 5- front protective cover; 6- rear protective cover; 7- docking hole; 8- front docking seat; 9- docking screw hole; 10- docking shaft; 11- rear docking seat; 12- spraying hole; 13- countersunk hole; 14- hexagon socket screw. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] like Figure 1-3 As shown, a noise reduction device for a collection tank at the outlet of a claw-type vacuum pump comprises a butt joint pipe 1, a collection tank 2 is welded at the end of the butt joint pipe 1, an exhaust pipe 3, a drain pipe 4, a front protective cover 5 and a rear protective cover 6 are arranged on the collection tank 2, the exhaust pipe 3 is welded to the middle of the top of the collection tank 2, the drain pipe 4 is welded to the middle of the bottom of the collection tank 2, the front protective cover 5 is sleeved on the front end of the outer side of the collection tank 2, the rear protective cover 6 is sleeved on the rear end of the outer side of the collection tank 2, the front protective cover 5 is provided with a butt joint hole 7 and a front butt joint seat 8, the butt joint hole 7 is opened at the rear end corner inside the front protective cover 5, and the front butt joint seat 8 is integrally formed The type is connected to the rear end corner of the outer side of the front protective cover 5, a docking screw hole 9 is opened in the middle of the front docking seat 8, and a docking shaft 10, a rear docking seat 11 and a spray hole 12 are provided on the rear protective cover 6. The docking shaft 10 is integrally formed and connected to the front end corner inside the rear protective cover 6, and the rear docking seat 11 is integrally formed and connected to the front end corner of the outer side of the rear protective cover 6. The spray hole 12 is opened in the middle above the rear end of the rear protective cover 6, the docking shaft 10 is nested in the docking hole 7, and a countersunk hole 13 is opened in the middle of the rear docking seat 11, and the countersunk hole 13 is fixedly connected to the docking screw hole 9 by a hexagon socket screw 14.

[0016] Specific usage: fix the docking pipe 1 to the claw vacuum pump outlet through the flange, then put the front protective cover 5 on the front end of the outer side of the collecting tank 2, and put the rear protective cover 6 on the rear end of the outer side of the collecting tank 2. At the same time, insert the docking shaft 10 into the docking hole 7, and then pass the hexagon socket screw 14 through the countersunk hole 13 and threadedly connect it with the docking screw hole 9. At this time, the front protective cover 5 and the rear protective cover 6 are docked with each other and installed on the outside of the collecting tank 2. Finally, polyurethane is poured into the front protective cover 5 and the rear protective cover 6 through the spray hole 12. After the polyurethane is foamed and formed, it will fill the space between the outer side of the collecting tank 2 and the inner wall of the protective cover. The filled polyurethane can easily reduce the noise of the collecting tank 2.

[0017] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A noise reduction device for a claw type vacuum pump outlet collecting tank, comprising a butt joint pipe (1), characterized in that: A collecting tank (2) is welded to the end of the butt-joint pipe (1), and the collecting tank (2) is provided with an exhaust pipe (3), a drain pipe (4), a front protective cover (5), and a rear protective cover (6). The exhaust pipe (3) is welded to the middle of the top of the collecting tank (2), the drain pipe (4) is welded to the middle of the bottom of the collecting tank (2), the front protective cover (5) is sleeved on the front end of the outer side of the collecting tank (2), and the rear protective cover (6) is sleeved on the rear end of the outer side of the collecting tank (2).

2. A claw type vacuum pump outlet collecting tank noise reduction device according to claim 1, characterized in that: The front protective cover (5) is provided with a docking hole (7) and a front docking seat (8); the docking hole (7) is provided at a rear end corner inside the front protective cover (5); the front docking seat (8) is integrally formed and connected to a rear end corner outside the front protective cover (5); a docking screw hole (9) is provided in the middle of the front docking seat (8).

3. A claw type vacuum pump outlet collecting tank noise reduction device according to claim 1, characterized in that: The rear protective cover (6) is provided with a docking shaft (10), a rear docking seat (11) and a spray hole (12); the docking shaft (10) is integrally formed and connected to the front end corner inside the rear protective cover (6); the rear docking seat (11) is integrally formed and connected to the front end corner outside the rear protective cover (6); and the spray hole (12) is opened in the middle above the rear end of the rear protective cover (6).

4. A claw type vacuum pump outlet collecting tank noise reduction device according to claim 3, characterized in that: The docking shaft (10) is nested in the docking hole (7).

5. The noise reduction device for a claw type vacuum pump outlet collecting tank according to claim 3, characterized in that: A countersunk hole (13) is provided in the middle of the rear docking seat (11), and the countersunk hole (13) is fixedly connected to the docking screw hole (9) via a hexagon socket screw (14).

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