Centrally installed switchgear with noise reduction structure

Abstract

The utility model relates to the technical field of centrally installed switchgear, in particular to a centrally installed switchgear with a noise reduction structure, which comprises a centrally installed switchgear body, and the noise reduction mechanism is arranged on the outer wall of the centrally installed switchgear body. The noise reduction mechanism comprises a mounting plate fixedly connected to the interior of the centrally installed switchgear body, a noise reduction pad is fixedly connected to the outer wall of the mounting plate, a connecting clamping block is slidably connected to the position, away from the noise reduction pad, in the mounting plate, and a limiting pin is slidably connected to the outer wall of the connecting clamping block in the mounting plate; a limiting pin is arranged in the mounting plate, a connecting rod is fixedly connected to the position, in the mounting plate, of the outer wall of the limiting pin, and an adjusting plate is fixedly connected to the position, away from one end of the limiting pin, of the outer wall of the connecting rod. The problems that in order to reduce the noise influence, a noise reduction pad is fixedly installed on the outer wall of an existing centrally installed switchgear, and the noise reduction pad is inconvenient to replace and disassemble are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the middle -placed cabinet, concretely is a middle -placed cabinet with noise reduction structure. BACKGROUND

[0002] The middle -placed cabinet is a kind of equipment frequently used in high voltage distribution system, but the existing middle -placed cabinet still has shortcomings, specifically: the existing middle -placed cabinet will be fixedly installed with noise reduction pad on outer wall to reduce noise influence, and it is inconvenient when replacing and disassembling noise reduction pad.

[0003] Therefore, a middle -placed cabinet with noise reduction structure is needed to solve the problems raised in the above background. UTILITY MODEL CONTENTS

[0004] The utility model is provided with a kind of middle -placed cabinet with noise reduction structure to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of middle -placed cabinet with noise reduction structure, including middle -placed cabinet body, the outer wall of the middle -placed cabinet body is provided with noise reduction mechanism;

[0007] The noise reduction mechanism includes the mounting plate fixedly connected in the inside of middle -placed cabinet body, the outer wall of the mounting plate is fixedly connected with noise reduction pad, the inside of the mounting plate and at the position away from noise reduction pad Slidingly connected with connecting block, the outer wall of the connecting block and in the mounting plate Slidingly connected with limit pin, the outer wall of the limit pin and in the mounting plate Fixedly connected with connecting rod, the outer wall of the connecting rod and at the end away from limit pin Fixedly connected with adjusting plate, the outer wall center of the adjusting plate and at the position away from connecting block Fixedly connected with rotating shaft, the outer wall of the rotating shaft is fixedly connected with worm wheel, the outer wall of the worm wheel and at the lower side of rotating shaft Meshingly connected with worm, the outer wall of the worm and at the front of mounting plate Fixedly connected with hand wheel, the inside of the noise reduction pad is provided with through hole.

[0008] As the preferred scheme of the utility model, the noise reduction mechanism is provided with multiple groups.

[0009] As the preferred scheme of the utility model, the mounting plate, connecting block and limit pin are all made of stainless steel, the connecting block is designed as T-shaped structure, and the connecting mode of the adjusting plate, rotating shaft and worm with the mounting plate is all rotary connection.

[0010] As the preferred scheme of the utility model, the noise reduction pad is made of polyurethane foam sound-absorbing material, the connecting block, adjusting plate and rotating shaft are all provided with four groups, and the connecting mode of the connecting block with the middle -placed cabinet body is fixed connection.

[0011] As the preferred scheme of the utility model, the worm and the connecting block all penetrate and extend to the outside of the mounting plate, and the through hole is provided with multiple groups.

[0012] As the preferred scheme of the utility model, the through hole is designed in a circular truncated cone structure, and the shape of the noise reduction pad is matched with the shape of the mounting plate.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、in the utility model, through design a kind of noise reduction structure's indoor unit, utilize the noise reduction mechanism in the device to reduce the noise of indoor unit body, rotate hand wheel, hand wheel will be driven by worm to rotate worm wheel, rotating worm wheel will be driven by rotating shaft to adjust plate rotation, adjust plate is driven by connecting rod to rotate limit pin, rotating limit pin no longer jams connecting block, pull noise reduction plate, remove noise reduction pad from indoor unit body, disassembly operation is more convenient, solve the problem that the existing indoor unit will be fixed with noise reduction pad on outer wall to reduce noise influence, and the noise reduction pad is more inconvenient to replace and disassemble. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 it is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 it is the mounting plate front view of the utility model;

[0017] Figure 3 it is the local three-dimensional structure schematic diagram of the connecting block of the utility model.

[0018] In the drawing: 1, indoor unit body;2, noise reduction mechanism;201, mounting plate;202, noise reduction pad;203, connecting block;204, limit pin;205, connecting rod;206, adjust plate;207, rotating shaft;208, worm wheel;209, worm;210, hand wheel;211, through hole. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0020] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0024] A central cabinet with a noise reduction structure comprises a central cabinet body 1, and a noise reduction mechanism 2 is provided on the outer wall of the central cabinet body 1;

[0025] The noise reduction mechanism 2 is provided with multiple groups;

[0026] In this embodiment, reference Figure 2 and Figure 3 The noise reduction mechanism 2 includes a mounting plate 201 fixedly connected to the interior of the central cabinet body 1, a noise reduction pad 202 fixedly connected to the outer wall of the mounting plate 201, a connecting block 203 slidably connected to the interior of the mounting plate 201 and away from the noise reduction pad 202, an outer wall of the connecting block 203 and a limit pin 204 slidably connected to the mounting plate 201, an outer wall of the limit pin 204 and a connecting rod 205 fixedly connected to the mounting plate 201, and an outer wall of the connecting rod 205 and a limit pin 204 slidably connected to the mounting plate 201. An adjustment plate 206 is fixedly connected to one end away from the limit pin 204. A rotating shaft 207 is fixedly connected to the center of the outer wall of the adjustment plate 206 and at a position away from the connecting block 203. A worm gear 208 is fixedly connected to the outer wall of the rotating shaft 207. A worm 209 is meshedly connected to the outer wall of the worm gear 208 and below the rotating shaft 207. A handwheel 210 is fixedly connected to the outer wall of the worm gear 209 and on the front surface of the mounting plate 201. A through hole 211 is opened inside the noise reduction pad 202.

[0027] The mounting plate 201, the connecting block 203 and the limit pin 204 are all made of stainless steel, the connecting block 203 is a T-shaped structure design, the adjustment plate 206, the rotating shaft 207 and the worm 209 are all connected to the mounting plate 201 in a rotating manner, the noise reduction pad 202 is made of polyurethane foam sound-absorbing material, the connecting block 203, the adjusting plate 206 and the rotating shaft 207 are all provided in four groups, the connection method of the connecting block 203 and the central cabinet body 1 is a fixed connection, the worm 209 and the connecting block 203 all pass through and extend to the outside of the mounting plate 201, and there are multiple groups of through holes 211, which are of a truncated cone structure design. The shape of the noise reduction pad 202 is adapted to the shape of the mounting plate 201, and the noise generated by the operation of the central cabinet body 1 will pass through the noise reduction pad 202. There are a large number of mutually interpenetrating pores inside the noise reduction pad 202 made of polyurethane foam sound-absorbing material. When the noise sound waves propagate in these gaps, they are subject to friction and viscous resistance by air molecules, causing the fine fibers inside the noise reduction pad 202 to vibrate mechanically. The energy of the noise is converted into heat energy, and the energy of the sound waves is reduced. At the same time, when the noise passes through the truncated cone-shaped through-hole 211 inside the noise reduction pad 202, the noise will undergo an expansion-contraction-expansion process, and part of the noise energy is converted into internal energy, further reducing the decibel intensity of the sound waves passing through the noise reduction pad 202. When the noise reduction pad 202 needs to be replaced, the hand wheel 210 is turned, and the hand wheel 210 drives the worm gear 208 to rotate through the worm 209. The rotating worm gear 208 drives the adjusting plate 206 to rotate through the rotating shaft 207. The adjusting plate 206 drives the limit pin 204 to rotate through the connecting rod 205. The rotating limit pin 204 no longer blocks the connecting block 203, and the mounting plate 201 is pulled to remove the mounting plate 201 from the central cabinet body 1.

[0028] The working process of the present utility model: When the central cabinet with a noise reduction structure designed by the present invention is in operation, the noise generated by the operation of the central cabinet body 1 will pass through the noise reduction pad 202. There are a large number of mutually penetrating pores inside the noise reduction pad 202 made of polyurethane foam sound-absorbing material. When the noise sound waves propagate in these gaps, they are subject to friction and viscous resistance of air molecules, causing the fine fibers inside the noise reduction pad 202 to vibrate mechanically, and the energy of the noise is converted into heat energy, and the energy of the sound wave is reduced. At the same time, when the noise passes through the truncated cone-shaped through hole 211 inside the noise reduction pad 202, the noise will undergo an expansion-contraction-expansion process, and part of the noise energy is converted into internal energy, further reducing the decibel intensity of the sound waves passing through the noise reduction pad 202. When the noise reduction pad 202 needs to be replaced, turn the handwheel 210, and the handwheel 210 will drive the worm gear 208 to rotate through the worm 209, and the rotating worm gear 208 will drive the adjustment through the rotating shaft 207 The plate 206 rotates, and the adjusting plate 206 drives the limit pin 204 to rotate through the connecting rod 205. The rotating limit pin 204 no longer blocks the connecting block 203, and the mounting plate 201 is pulled to remove the mounting plate 201 from the central cabinet body 1. The new mounting plate 201 is placed in the central cabinet body 1, so that the mounting plate 201 is aligned with the connecting block 203, and the mounting plate 201 is pushed. The mounting plate 201 is close to the connecting block 203, and the connecting block 203 is inserted into the mounting plate. Install the plate 201 and rotate the handwheel 210 in the opposite direction. The handwheel 210 will drive the worm gear 208 to rotate in the opposite direction through the worm 209. The reversely rotating worm gear 208 will drive the adjustment plate 206 to rotate in the opposite direction through the rotating shaft 207. The adjustment plate 206 drives the limit pin 204 to the opposite shape through the connecting rod 205. The reversely rotating limit pin 204 will re-engage the connecting block 203 to fix the new installation plate 201 and the noise reduction pad 202 in the central cabinet body 1.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A central cabinet with a noise reduction structure, comprising a central cabinet body (1), characterized in that: The outer wall of the central cabinet body (1) is provided with a noise reduction mechanism (2); The noise reduction mechanism (2) comprises a mounting plate (201) fixedly connected to the interior of the central cabinet body (1); a noise reduction pad (202) is fixedly connected to the outer wall of the mounting plate (201); a connecting block (203) is slidably connected to the interior of the mounting plate (201) and at a position away from the noise reduction pad (202); a limiting pin (204) is slidably connected to the outer wall of the connecting block (203) and in the mounting plate (201); a connecting rod (205) is fixedly connected to the outer wall of the limiting pin (204) and in the mounting plate (201); and the outer wall of the connecting rod (205) is slidably connected to the outer wall of the connecting block (203). An adjustment plate (206) is fixedly connected to one end away from the limit pin (204); a rotating shaft (207) is fixedly connected to the center of the outer wall of the adjustment plate (206) and at a position away from the connecting block (203); a worm wheel (208) is fixedly connected to the outer wall of the rotating shaft (207); a worm (209) is meshedly connected to the outer wall of the worm wheel (208) below the rotating shaft (207); a hand wheel (210) is fixedly connected to the outer wall of the worm wheel (209) and on the front side of the mounting plate (201); and a through hole (211) is opened inside the noise reduction pad (202).

2. The central cabinet with a noise reduction structure according to claim 1, characterized in that: The noise reduction mechanism (2) is provided in multiple groups.

3. The central cabinet with a noise reduction structure according to claim 1, characterized in that: The mounting plate (201), the connecting block (203) and the limiting pin (204) are all made of stainless steel; the connecting block (203) is designed as a T-shaped structure; the adjusting plate (206), the rotating shaft (207) and the worm (209) are all connected to the mounting plate (201) in a rotating manner.

4. The central cabinet with a noise reduction structure according to claim 1, characterized in that: The noise reduction pad (202) is made of polyurethane foam sound-absorbing material, and four groups of the connecting blocks (203), the adjusting plates (206), and the rotating shafts (207) are provided. The connection mode of the connecting blocks (203) and the central cabinet body (1) is a fixed connection.

5. The central cabinet with a noise reduction structure according to claim 1, characterized in that: The worm (209) and the connecting block (203) both penetrate and extend outside the mounting plate (201), and a plurality of through holes (211) are provided.

6. The central cabinet with a noise reduction structure according to claim 1, characterized in that: The through hole (211) is designed as a truncated cone structure, and the shape of the noise reduction pad (202) is compatible with the shape of the mounting plate (201).

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