CN211231018U - Shock absorber for centrifugal ventilator - Google Patents

Abstract

The utility model belongs to the technical field of shock absorption, in particular to a shock absorber for a centrifugal fan. The slot is opened on the top of the box block, the two side slots are respectively opened on the inner walls of both sides of the installation slot, the placement bottom plate is located in the installation slot, and the centrifugal fan is fixedly installed on the top of the placement bottom plate , the adjustment mechanism is located in the installation groove, the adjustment mechanism includes four L-shaped rods distributed in a rectangular array, and the four L-shaped blocks are fixedly installed on the bottom inner wall of the installation groove. The utility model is simple to operate and convenient to use, and the centrifugal fan can be damped in two rounds through the cooperation of the first spring and the second spring, so that the centrifugal fan can maintain relative stability during operation and ensure its normal operation.

Description

A shock absorber for centrifugal fan

technical field

The utility model relates to the technical field of shock absorption, in particular to a shock absorber for a centrifugal fan.

Background technique

Centrifugal centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal centrifugal fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships. Ventilation, dust removal and cooling of buildings and buildings; ventilation and induced draft of boilers and industrial furnaces; cooling and ventilation in air-conditioning equipment and household appliances; drying and selection of grains; wind tunnel air sources and inflation of hovercraft In order not to affect the normal use of the centrifugal fan, it is necessary to use a special shock absorber to dampen the centrifugal fan.

However, in the prior art, the cost of the shock absorber is relatively high, and the shock absorption effect is not ideal. The centrifugal fan still has the influence of vibration when it is used, and also generates noise, which affects the working environment. A shock absorber for a centrifugal fan.

Utility model content

The purpose of the utility model is to propose a shock absorber for centrifugal fan in order to solve the shortcomings in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a shock absorber for a centrifugal fan, comprising a box block, an installation slot, a side slot, a bottom plate, a centrifugal fan and an adjustment mechanism, the The installation slot is opened on the top of the box block, the two side slots are respectively opened on the inner walls of both sides of the installation slot, the placement bottom plate is located in the installation slot, and the centrifugal fan is fixedly installed on the placement bottom plate The top of the adjusting mechanism is located in the installation groove;

The adjusting mechanism includes four L-shaped blocks distributed in a rectangular array, and each of the four L-shaped blocks is fixedly installed on the bottom inner wall of the installation slot, and the sides of the four L-shaped blocks that are close to each other are fixedly installed. Two sliding crossbars, two sliding adjustment blocks are slidably installed on the sliding crossbars, hinged rods are hinged on the sliding adjustment blocks, and two rectangular fixing blocks are fixedly installed at the bottom of the placing bottom plate, and the One end of the hinge rod away from the sliding adjustment block is hinged with the corresponding rectangular fixing block, four vertical sliding rods are fixedly installed between the top and bottom inner walls of the side slot, and strips are slidably installed on the four vertical sliding rods. The top of the bar-shaped block is fixedly connected with the bottom of the placing bottom plate.

Preferably, two first springs are sleeved on the sliding crossbar, two ends of the two first springs are fixedly connected to the L-shaped block and the sliding adjustment block respectively, and the elastic stiffness coefficient of the first spring is 150N/m to 280N/m.

Preferably, a second spring is sleeved on the vertical sliding rod, and the top and bottom ends of the second spring are fixedly connected to the bar block and the bottom inner wall of the side groove, respectively. The elastic force of the second spring The degree coefficient is 120N/m to 240N/m.

Preferably, two ball rolling grooves are formed on the bottom inner wall of the installation groove, the bottoms of the four sliding adjustment blocks are embedded with balls, and the bottoms of the balls are all in contact with the inner wall of the ball rolling grooves.

Preferably, the model of the centrifugal fan is G/Y4-72.

Compared with the prior art, the beneficial effects of the present utility model are: the device passes through the box-shaped block, the installation slot, the side slot, the placing bottom plate, the centrifugal fan, the adjusting mechanism, the L-shaped block, the sliding cross bar, the sliding The adjustment block, the hinge rod, the rectangular fixed block, the vertical sliding rod and the strip block are matched together. The centrifugal fan drives the two rectangular fixed blocks to move down through the placement of the bottom plate, and the rectangular fixed block drives the sliding adjustment block to slide through the hinge rod. The sliding movement on the crossbar squeezes the first spring, causing it to deform, thereby performing the first round of shock absorption;

Placing the bottom plate drives the four bar-shaped blocks to slide on the corresponding vertical sliding rods, so that the bar-shaped rods squeeze the second spring, and the second spring is used for the second round of shock absorption.

The utility model is simple to operate and convenient to use, and the centrifugal fan can be damped in two rounds through the cooperation of the first spring and the second spring, so that the centrifugal fan can maintain relative stability during operation and ensure its normal operation.

Description of drawings

Fig. 1 is the front view sectional structure schematic diagram of the present utility model;

FIG. 2 is an assembly view of the adjustment mechanism in FIG. 1 .

In the figure: 1. Box block; 2. Installation slot; 3. Side slot; 4. Placing bottom plate; 5. Centrifugal fan; 6. Adjustment mechanism; 7. L-shaped block; 8. Sliding crossbar; 9, sliding adjustment block; 10, hinge rod; 11, rectangular fixed block; 12, vertical sliding rod; 13, bar block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1-FIG. 2, the present utility model provides a technical solution: a shock absorber for centrifugal fan, including box block 1, installation groove 2, side groove 3, placing bottom plate 4, centrifugal ventilation The machine 5 and the adjustment mechanism 6, the installation slot 2 is opened on the top of the box block 1, the two side slots 3 are respectively opened on the inner walls of both sides of the installation slot 2, and the bottom plate 4 is located in the installation slot 2, The centrifugal fan 5 is fixedly installed on the top of the base plate 4, and the adjustment mechanism 6 is located in the installation groove 2;

The adjustment mechanism 6 includes four L-shaped blocks 7 distributed in a rectangular array. The four L-shaped blocks 7 are fixedly installed on the bottom inner wall of the installation groove 2 in correspondence with each other, and the four L-shaped blocks 7 are close to each other on one side. Two sliding crossbars 8 are fixedly installed, two sliding adjustment blocks 9 are slidably installed on the sliding crossbar 8, and a hinge rod 10 is hinged on the sliding adjustment block 9, and two rectangular fixing blocks are fixedly installed at the bottom of the bottom plate 4 11. One end of the hinge rod 10 away from the sliding adjustment block 9 is hinged with the corresponding rectangular fixing block 11. Four vertical sliding rods 12 are fixedly installed between the top and bottom inner walls of the side slot 3, and the four vertical sliding rods 12 A bar-shaped block 13 is slidably installed on the upper part, and the top of the bar-shaped block 13 is fixedly connected with the bottom of the placing bottom plate 4;

The sliding crossbar 8 is sleeved with two first springs, the two ends of the two first springs are respectively fixedly connected with the L-shaped block 7 and the sliding adjustment block 9, and the elastic stiffness coefficient of the first spring is 150N/m to 280N /m, the vertical slide bar 12 is sleeved with a second spring, the top and bottom ends of the second spring are fixedly connected to the bar bar 13 and the bottom inner wall of the side slot 3 respectively, and the elastic stiffness coefficient of the second spring is 120N/m to 240N/m, there are two ball rolling grooves on the bottom inner wall of the installation groove 2, the bottoms of the four sliding adjustment blocks 9 are inlaid with balls, and the bottoms of the balls are all in contact with the inner wall of the ball rolling grooves, The model of centrifugal fan 5 is G/Y4-72. The device passes through box block 1, installation slot 2, side slot 3, placing bottom plate 4, centrifugal fan 5, adjustment mechanism 6, L-shaped block 7, The sliding crossbar 8, the sliding adjustment block 9, the hinged rod 10, the rectangular fixed block 11, the vertical sliding rod 12 and the bar block 13 are matched together, and the centrifugal fan 5 drives the two rectangular fixed blocks 11 downward by placing the bottom plate 4 Move, the rectangular fixed block 11 drives the sliding adjustment block 9 through the hinge rod 10 to perform a sliding motion on the sliding crossbar 8 to squeeze the first spring, causing it to deform, thereby performing the first round of shock absorption, and placing the bottom plate 4 to drive The four bar-shaped blocks 13 slide on the corresponding vertical sliding rods 12, so that the bar-shaped rods 13 squeeze the second spring, and the second round of shock absorption is performed by the second spring. The utility model is easy to operate and use. Conveniently, through the cooperation of the first spring and the second spring, the centrifugal fan 5 is subjected to two rounds of shock absorption, so that the centrifugal fan 5 maintains relative stability during operation and ensures its normal operation.

Working principle: When the centrifugal fan 5 is working, the centrifugal fan 5 will generate kinetic energy to drive the placing bottom plate 4 to move downward, and the placing bottom plate 4 will drive the four bar blocks 13 to move, so that the bar blocks 13 are in the corresponding vertical shape. The sliding rod 12 performs a sliding motion, and at the same time, the second spring is squeezed to deform it, and the bottom plate 4 is placed to drive the two rectangular fixed blocks 11 to move at the same time. The rectangular fixed blocks 11 drive four sliding adjustment through the hinge rod 10. The block 9 moves to make the four sliding adjustment blocks 9 move away from each other on the corresponding sliding crossbars 8 in pairs to squeeze the first spring, and the downforce generated by the centrifugal fan 5 is affected by the first spring and the The action of the elastic force of the second spring is converted from the dynamic potential energy into the elastic potential energy of the spring, so that the centrifugal fan 5 produces a buffer, thereby shock absorption.

It should be noted that the equipment structure and accompanying drawings of the present utility model mainly describe the principle of the present utility model. In the technical aspect of the design principle, the settings of the power mechanism, power supply system and control system of the device are not completely described. On the premise that those skilled in the art understand the principles of the above utility model, they can clearly know the specifics of its power mechanism, power supply system and control system.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (5)

1. A shock absorber for a centrifugal fan, characterized in that: comprising a box block (1), an installation groove (2), a side groove (3), a base plate (4), a centrifugal fan (5) ) and the adjusting mechanism (6), the installation groove (2) is opened on the top of the box block (1), and the two side grooves (3) are respectively opened on the inner walls of both sides of the installation groove (2), The placing bottom plate (4) is located in the installation groove (2), the centrifugal fan (5) is fixedly installed on the top of the placing bottom plate (4), and the adjusting mechanism (6) is located in the installation groove (2). )Inside; The adjusting mechanism (6) includes four L-shaped blocks (7) distributed in a rectangular array, and the four L-shaped blocks (7) are fixedly installed on the bottom inner wall of the installation groove (2) in correspondence with each other, and the four L-shaped blocks (7) are fixedly installed on the bottom inner wall of the installation groove Two sliding cross bars (8) are fixedly installed on one side of the L-shaped blocks (7) that are close to each other, and two sliding adjustment blocks (9) are slidably installed on the sliding cross bars (8). (9) A hinge rod (10) is hinged on it, two rectangular fixing blocks (11) are fixedly installed at the bottom of the placing bottom plate (4), and the hinge rod (10) is away from one end of the sliding adjustment block (9). It is hinged with the corresponding rectangular fixing block (11), and four vertical sliding bars (12) are fixedly installed between the top and bottom inner walls of the side slot (3). A bar-shaped block (13) is slidably installed, and the top of the bar-shaped block (13) is fixedly connected with the bottom of the placing bottom plate (4). 2. The shock absorber for a centrifugal fan according to claim 1, characterized in that: two first springs are sleeved on the sliding cross bar (8), and two ends of the two first springs are respectively Fixedly connected with the L-shaped block (7) and the sliding adjustment block (9), the elastic stiffness coefficient of the first spring is 150N/m to 280N/m. 3. A shock absorber for a centrifugal fan according to claim 1, characterized in that: the vertical sliding rod (12) is sleeved with a second spring, and the top and bottom ends of the second spring are The second spring is fixedly connected to the bottom inner wall of the bar block (13) and the side groove (3) respectively, and the elastic stiffness coefficient of the second spring is 120N/m to 240N/m. 4. The shock absorber for a centrifugal fan according to claim 1, characterized in that: two ball rolling grooves are provided on the bottom inner wall of the installation groove (2), and four sliding adjustment blocks (9 ) are inlaid with balls at the bottom, and the bottoms of the balls are all in contact with the inner wall of the ball groove. 5 . The shock absorber for a centrifugal fan according to claim 1 , wherein the centrifugal fan ( 5 ) has a model of G/Y4-72. 6 .

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