Roots blower with sound insulation shell

Abstract

The Roots blower with the sound insulation shell comprises a base, a connecting mechanism, the sound insulation shell, a vibration reduction mechanism and a blower body, the sound insulation shell is connected to the top of the base through the connecting mechanism, the vibration reduction mechanism is embedded in the base, and the sound insulation shell is connected to the bottom of the base through the connecting mechanism. The fan body is connected to the top of the base, connecting seats are fixedly connected to the left and right parts of the front and rear sides of the base, and rotating blocks are rotatably connected to the interiors of the connecting seats. According to the Roots blower with the sound insulation shell, a threaded rod is pulled to drive a connecting plate to move, so that an extension spring is stretched, and a knob is moved away from the top of a clamping seat; and then the sleeve is deflected, so that the threaded rod is moved out of the clamping seat, the fixation of the sound insulation shell is relieved, the sound insulation shell is convenient to disassemble, the fan is convenient to overhaul, the narrow space is avoided, the overhaul is more convenient, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Roots blowers, in particular to a Roots blower with a sound insulation shell. Background Art

[0002] Roots blower is a positive displacement blower with an impeller end face and front and rear end covers. It is a rotary compressor that uses two blade-shaped rotors to make relative motion in the cylinder to compress and transport gas. This type of blower has a simple structure and is easy to manufacture. It is widely used in aquaculture oxygenation, sewage treatment aeration, cement transportation, and is more suitable for gas transportation and pressurization systems in low-pressure situations. It can also be used as a vacuum pump, etc. When a Roots blower is in use, in order to reduce noise, a sound insulation shell is usually installed on the outside of the Roots blower for noise reduction.

[0003] A Chinese patent with publication number CN218376873U discloses a Roots blower with a soundproof shell. The patent provides glass wool on the inner wall of the soundproof shell body so that the soundproof shell body has soundproof performance. The sealing structure can eliminate the gap between the bottom of the box door and the soundproof shell body, thereby reducing the transmission of sound and improving the sound insulation effect. However, the soundproof shell and the blower are fixedly connected in the patent. During maintenance, maintenance needs to be carried out inside the soundproof shell. However, the internal space of the soundproof shell is small, which is not conducive to maintenance of the blower, making maintenance inconvenient and reducing the practicality of the device. For this reason, we propose a Roots blower with a soundproof shell. Utility Model Content

[0004] The utility model aims to provide a Roots blower with a soundproof shell, so as to solve the problem proposed in the above background technology that during maintenance, it is necessary to carry out maintenance inside the soundproof shell, while the internal space of the soundproof shell is small, which is not conducive to maintenance of the blower, making maintenance inconvenient and reducing the practicability of the device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a Roots blower with a soundproof shell, comprising a base, a connecting mechanism, a soundproof shell, a vibration reduction mechanism and a blower body, the soundproof shell is connected to the top of the base through the connecting mechanism, the vibration reduction mechanism is embedded in the interior of the base, the blower body is connected to the top of the base, the connecting mechanism comprises a connecting seat, a rotating block, a sleeve, a tension spring, a connecting plate, a threaded rod, a knob and a holder, the left and right parts of the front and rear sides of the base are fixedly connected with the connecting seat, the interior of the connecting seat is rotatably connected with the rotating block, the top of the rotating block is fixedly connected with the sleeve, the middle part of the bottom of the inner cavity of the sleeve is fixedly connected with the tension spring, the top of the tension spring is fixedly connected with the connecting plate, the middle part of the top of the connecting plate is fixedly connected with the threaded rod, the outer side wall of the threaded rod is screwed with a knob through a thread, and the left and right parts of the front and rear sides of the soundproof shell are fixedly connected with the holder.

[0006] As a further description of the above technical solution:

[0007] The connecting plate is slidably connected to the interior of the sleeve, and the outer side wall of the connecting plate is in contact with the inner side wall of the sleeve.

[0008] As a further description of the above technical solution:

[0009] The top end of the threaded rod is fixedly connected with a baffle, and the outer side wall of the knob is provided with anti-slip grooves.

[0010] As a further description of the above technical solution:

[0011] The vibration reduction mechanism includes an installation cavity, a first damper, a first buffer spring, a installation plate, a sliding rod, a slider, a second buffer spring, a spring plate and a second damper. An installation cavity is opened in the middle of the top of the base, and the first damper is fixedly connected at the four corners of the bottom of the installation cavity. The first buffer spring is sleeved on the outer side of the first damper, and the top of the first damper is fixedly connected to the installation plate. The front and rear parts of the bottom between the left and right sides of the installation cavity are fixedly connected to the sliding rod, and the slider is symmetrically slidably connected to the outer side of the sliding rod. The front and rear parts between the opposite sides of the sliders on the left and right parts are fixedly connected to the second buffer spring, the top of the slider is fixedly connected to the spring plate, and the middle parts of the left and right sliders that are away from each other are fixedly connected to the second damper.

[0012] As a further description of the above technical solution:

[0013] The top end and the bottom end of the first buffer spring are fixedly connected to the bottom of the mounting plate and the bottom of the mounting cavity respectively, and the mounting plate is slidably connected to the inside of the mounting cavity.

[0014] As a further description of the above technical solution:

[0015] The fan body is fixedly connected to the top of the mounting plate, the left end of the second damper on the left side is fixedly connected to the left side of the mounting cavity, the right end of the second damper on the right side is fixedly connected to the right side of the mounting cavity, and the second buffer spring is sleeved on the outer side of the slide rod.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The Roots blower with a sound insulation shell pulls the threaded rod to drive the connecting plate to move, so that the tension spring is stretched and the knob is removed from the top of the holder. Then the sleeve is deflected to move the threaded rod out of the holder, thereby releasing the fixation of the sound insulation shell, facilitating the disassembly of the sound insulation shell, facilitating the maintenance of the blower, avoiding narrow space, making maintenance more convenient, and improving the practicality of the device. The distance between the knob and the threaded rod is adjusted to facilitate the adjustment of the deformation of the tension spring, so that the holder can be pressed tighter to prevent loosening.

[0018] 2. When the Roots blower with a soundproof shell is running, the vibration generated causes the mounting plate to move, thereby squeezing the first buffer spring and the spring plate to deform, thereby moving the left and right sliders and stretching the second buffer spring. The vibration generated is buffered by the deformation of the first buffer spring, the spring plate and the second buffer spring, thereby avoiding the vibration from generating large noise and further reducing the generation of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a Roots blower with a soundproof housing proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of a tension spring of a Roots blower with a soundproof housing proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the mounting structure of a Roots blower with a soundproof housing proposed by the utility model;

[0022] Figure 4 The utility model provides a schematic structural diagram of a vibration reduction mechanism of a Roots blower with a soundproof casing.

[0023] In the figure: 100, base; 200, connecting mechanism; 210, connecting seat; 220, rotating block; 230, sleeve; 240, tension spring; 250, connecting plate; 260, threaded rod; 270, knob; 280, socket; 300, sound insulation shell; 400, vibration reduction mechanism; 410, mounting cavity; 420, first damper; 430, first buffer spring; 440, mounting plate; 450, sliding rod; 460, sliding block; 470, second buffer spring; 480, spring plate; 490, second damper; 500, fan body. DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides a Roots blower with a soundproof housing, which is convenient for maintenance of the blower, avoids narrow space, makes maintenance more convenient, and improves the practicality of the device. Please refer to Figure 1-4 , including a base 100, a connecting mechanism 200, a sound insulation shell 300, a vibration reduction mechanism 400 and a fan body 500;

[0028] Please refer again Figure 1 , the base 100 is used to install the connecting mechanism 200, the sound insulation shell 300, the vibration reduction mechanism 400 and the fan body 500;

[0029] Please refer again Figure 1 , the sound insulation shell 300 is connected to the top of the base 100 through the connecting mechanism 200, the vibration reduction mechanism 400 is embedded in the inside of the base 100, and the fan body 500 is connected to the top of the base 100;

[0030] Please refer again Figure 2-3 , the connecting mechanism 200 includes a connecting seat 210, a rotating block 220, a sleeve 230, a tension spring 240, a connecting plate 250, a threaded rod 260, a knob 270 and a clamping seat 280;

[0031] Please refer again Figure 2 The left and right parts of the front and rear sides of the base 100 are fixedly connected with a connecting seat 210, the interior of the connecting seat 210 is rotatably connected with a rotating block 220, the top of the rotating block 220 is fixedly connected with a sleeve 230, and the middle part of the bottom of the inner cavity of the sleeve 230 is fixedly connected with a tension spring 240;

[0032] Please refer again Figure 2 The top of the tension spring 240 is fixedly connected to a connecting plate 250, the middle of the top of the connecting plate 250 is fixedly connected to a threaded rod 260, the outer wall of the threaded rod 260 is screwed with a knob 270, and the left and right parts of the front and rear sides of the sound insulation shell 300 are fixedly connected to a socket 280.

[0033] To summarize, by pulling the threaded rod 260, the connecting plate 250 is driven to move, so that the tension spring 240 is stretched, and the knob 270 is removed from the top of the holder 280, and then the sleeve 230 is deflected, so that the threaded rod 260 is moved out of the holder 280, thereby releasing the fixation of the sound insulation shell 300, facilitating the disassembly of the sound insulation shell 300, facilitating the maintenance of the fan, avoiding narrow space, making maintenance more convenient, and improving the practicality of the device. In addition, by adjusting the distance of the knob 270 on the threaded rod 260, it is convenient to adjust the deformation of the tension spring 240, so as to press the holder 280 tighter to prevent loosening.

[0034] Please refer again Figure 2 The connecting plate 250 is slidably connected to the inside of the sleeve 230 , and the outer wall of the connecting plate 250 is in contact with the inner wall of the sleeve 230 .

[0035] Please refer again Figure 2 The top end of the threaded rod 260 is fixedly connected with a baffle, and the outer wall of the knob 270 is provided with anti-slip grooves.

[0036] Please refer again Figure 4The vibration reduction mechanism 400 includes an installation cavity 410, a first damper 420, a first buffer spring 430, a mounting plate 440, a slide bar 450, a slider 460, a second buffer spring 470, a spring plate 480 and a second damper 490. An installation cavity 410 is opened in the middle of the top of the base 100, the first damper 420 is fixedly connected at the four corners of the bottom of the installation cavity 410, the first buffer spring 430 is sleeved on the outside of the first damper 420, the top of the first damper 420 is fixedly connected to the installation plate 440, the slide bar 450 is fixedly connected to the front and rear parts of the bottom between the left and right sides of the installation cavity 410, the slider 460 is symmetrically slidably connected to the outside of the slide bar 450, the front and rear parts between the opposite sides of the sliders 460 of the left and right parts are fixedly connected to the second buffer spring 470, the top of the slider 460 is fixedly connected to the spring plate 480, and the middle part of the mutually away sides of the sliders 460 of the left and right parts is fixedly connected to the second damper 490.

[0037] Please refer again Figure 4 The top and bottom ends of the first buffer spring 430 are fixedly connected to the bottom of the mounting plate 440 and the bottom of the mounting cavity 410 respectively, and the mounting plate 440 is slidably connected to the inside of the mounting cavity 410.

[0038] Please refer again Figure 4 The fan body 500 is fixedly connected to the top of the mounting plate 440, the left end of the left second damper 490 is fixedly connected to the left side of the mounting cavity 410, the right end of the right second damper 490 is fixedly connected to the right side of the mounting cavity 410, and the second buffer spring 470 is sleeved on the outer side of the slide rod 450.

[0039] To sum up, when the fan is running, the vibration generated causes the mounting plate 440 to move, squeezing the first buffer spring 430 and the spring plate 480 at the same time, causing the spring plate 480 to deform, causing the left and right sliders 460 to move and stretching the second buffer spring 470. Through the deformation of the first buffer spring 430, the spring plate 480 and the second buffer spring 470, the generated vibration is buffered to avoid the vibration generating large noise, thereby further reducing the generation of noise.

[0040] During specific use, when the fan is running, the vibration generated causes the mounting plate 440 to move, squeezing the first buffer spring 430 and the spring plate 480 at the same time, causing the spring plate 480 to deform, causing the left and right sliders 460 to move, and stretching the second buffer spring 470. Through the deformation of the first buffer spring 430, the spring plate 480 and the second buffer spring 470, the generated vibration is buffered to reduce the noise generated by the vibration. When maintenance is needed, the threaded rod 260 is pulled to drive the connecting plate 250 to move, causing the tension spring 240 to stretch and the knob 270 to be removed from the top of the holder 280. Then, the sleeve 230 is deflected to cause the threaded rod 260 to move out of the holder 280, thereby releasing the fixation of the sound insulation shell 300, making it convenient to disassemble the sound insulation shell 300 for maintenance.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A Roots blower with a soundproof housing, characterized in that: The invention comprises a base (100), a connecting mechanism (200), a sound insulation shell (300), a vibration reduction mechanism (400) and a fan body (500), wherein the sound insulation shell (300) is connected to the top of the base (100) through the connecting mechanism (200), the vibration reduction mechanism (400) is embedded in the base (100), the fan body (500) is connected to the top of the base (100), the connecting mechanism (200) comprises a connecting seat (210), a rotating block (220), a sleeve (230), a tension spring (240), a connecting plate (250), a threaded rod (260), a knob (270) and a clamping seat (280), and the base ( The left and right parts of the front and rear sides of the sound insulation shell (300) are fixedly connected to a connecting seat (210), the interior of the connecting seat (210) is rotatably connected to a rotating block (220), the top of the rotating block (220) is fixedly connected to a sleeve (230), the middle part of the bottom of the inner cavity of the sleeve (230) is fixedly connected to a tension spring (240), the top of the tension spring (240) is fixedly connected to a connecting plate (250), the middle part of the top of the connecting plate (250) is fixedly connected to a threaded rod (260), the outer wall of the threaded rod (260) is screwed with a knob (270), and the left and right parts of the front and rear sides of the sound insulation shell (300) are fixedly connected to a socket (280).

2. A Roots blower with a soundproof housing according to claim 1, characterized in that: The connecting plate (250) is slidably connected to the interior of the sleeve (230), and the outer wall of the connecting plate (250) is in contact with the inner wall of the sleeve (230).

3. The Roots blower with a soundproof housing according to claim 1, characterized in that: A baffle is fixedly connected to the top end of the threaded rod (260), and an outer side wall of the knob (270) is provided with anti-slip grooves.

4. The Roots blower with a soundproof housing according to claim 1, characterized in that: The vibration reduction mechanism (400) comprises a mounting cavity (410), a first damper (420), a first buffer spring (430), a mounting plate (440), a sliding rod (450), a sliding block (460), a second buffer spring (470), a spring plate (480) and a second damper (490); a mounting cavity (410) is provided in the middle of the top of the base (100); the first damper (420) is fixedly connected at the four corners of the bottom of the mounting cavity (410); the first buffer spring (430) is sleeved on the outer side of the first damper (420); The top of the first damper (420) is fixedly connected to a mounting plate (440), the front and rear parts of the bottom between the left and right sides of the mounting cavity (410) are fixedly connected to a slide bar (450), the outer side of the slide bar (450) is symmetrically slidably connected to a slider (460), the front and rear parts between the opposite sides of the left and right sliders (460) are fixedly connected to a second buffer spring (470), the top of the slider (460) is fixedly connected to a spring plate (480), and the middle parts of the left and right sliders (460) that are away from each other are fixedly connected to a second damper (490).

5. The Roots blower with a soundproof housing according to claim 4, characterized in that: The top end and the bottom end of the first buffer spring (430) are fixedly connected to the bottom of the mounting plate (440) and the bottom of the mounting cavity (410) respectively, and the mounting plate (440) is slidably connected to the inside of the mounting cavity (410).

6. The Roots blower with a soundproof housing according to claim 4, characterized in that: The fan body (500) is fixedly connected to the top of the mounting plate (440), the left end of the second damper (490) on the left is fixedly connected to the left side of the mounting cavity (410), the right end of the second damper (490) on the right is fixedly connected to the right side of the mounting cavity (410), and the second buffer spring (470) is sleeved on the outer side of the sliding rod (450).

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