Adjusting device for flow collecting opening of ventilator

Abstract

The utility model relates to the technical field of ventilator equipment, in particular to an adjusting device for a flow collecting port of a ventilator, which comprises a base, a casing, a cylinder and a plurality of nuts, one end of the cylinder is lapped in the casing, the casing is fixedly connected to the top of the base, the cylinder is positioned above the base, and the nuts are arranged on the casing. A distance adjusting assembly is in lap joint with the outer surface of the cylinder body, the distance adjusting assembly is movably connected to one side of the machine shell, a flange end and two supporting feet are fixedly connected to the outer surface of the cylinder body, and a plurality of first through holes in a circumferential array are formed in the outer surface of the flange end. The fan is provided with the corrugated pipe, the corrugated pipe can absorb shock and compensate the displacement of the cylinder body, the sleeving gap between the air inlet and the impeller at high temperature can be well solved, the operation efficiency is ensured, the stability of the fan is improved, the stability of the gap between the impeller and the air inlet is ensured, and the operation efficiency of the fan is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilator equipment, in particular to an adjusting device for a ventilator air inlet collector. Background Art

[0002] In some existing ventilators, the air inlet is installed together with the casing, and the air inlet will change randomly with the change of the casing. Especially for ventilators with a temperature > 550°C, the casing has a large deformation, which will cause the gap between the air inlet and the impeller to change. After the ventilator is installed, it is difficult to control the gap between the impeller and the air inlet. If the gap between the impeller and the air inlet is reserved too large during design, it will increase the internal consumption of the fan and reduce the fan efficiency. If the gap is reserved smaller, it will cause the risk of friction at high temperatures. Summary of the Utility Model

[0003] In order to ensure the stability of the gap between the impeller and the air inlet and guarantee the operation efficiency of the fan, the utility model provides an adjusting device for a ventilator air inlet collector.

[0004] The adjusting device for a ventilator air inlet collector provided by the utility model adopts the following technical scheme:

[0005] An adjusting device for a ventilator air inlet collector includes a base, a casing, a cylinder body and a plurality of nuts. One end of the cylinder body is lapped inside the casing. The casing is fixedly connected to the top of the base. The cylinder body is located above the base. An adjusting distance assembly is lapped on the outer surface of the cylinder body, and the adjusting distance assembly is movably connected to one side of the casing.

[0006] By adopting the above technical scheme, the gap between the air inlet of the cylinder body and the impeller inside the casing is adjusted through the adjusting distance assembly, and then the deformation amount of the casing is absorbed through the adjusting distance assembly, so as to ensure the stability of the air inlet.

[0007] Preferably, a flange end and two supporting feet are fixedly connected to the outer surface of the cylinder body. A plurality of through holes one are arranged in a circumferential array on the outer surface of the flange end. A plurality of bumps are fixedly connected to one side of the casing close to the adjusting distance assembly in a circumferential array.

[0008] Preferably, the adjusting distance assembly includes a corrugated pipe and a plurality of stud bolts. The inside of the corrugated pipe is sleeved on the outer surface of the cylinder body. Two ends of the corrugated pipe are respectively lapped on one side of the flange end and one side of the casing.

[0009] By adopting the above technical scheme, by adjusting the length of the stud bolt screwed into the nut, through the cooperation of the nut and the stud bolt, it is also convenient to disassemble the connection between the flange end and the casing, so as to facilitate the replacement of the cylinder body, so that the remaining gap between the air inlet of the cylinder body and the impeller is changed, so that the remaining gap can be large or small, which is convenient for the ventilator to adapt to different working conditions.

[0010] Preferably, a plurality of the stud bolts are sleeved inside corresponding first through holes, and one ends of the plurality of stud bolts are threadedly connected inside corresponding bumps.

[0011] Preferably, a part of the nuts are clamped on one side of the flange end, the other ends of the plurality of stud bolts are threadedly connected inside corresponding nuts, and the plurality of stud bolts are circumferentially and arrayedly distributed on the outer surface of the cylinder body.

[0012] By adopting the above technical solution, the flange end and the casing are connected through the stud bolts, that is, the cylinder body and the casing are connected, thereby limiting the length of the corrugated pipe.

[0013] Preferably, one sides of the two supporting feet are both arc surfaces, the two arc surfaces are fixedly connected to the outer surface of the cylinder body, and the two supporting feet are horizontally placed and symmetrically distributed on both sides of the cylinder body.

[0014] Preferably, through holes two are formed in the bottoms of the two supporting feet and the top of the base, bolts are inserted into each two corresponding through holes two, the outer surfaces of the corresponding bolts are threadedly connected inside two of the nuts, and one sides of two of the nuts are clamped on the outer surface of the base.

[0015] By adopting the above technical solution, the cylinder body is frustum-shaped, the arc surface is adapted to the outer surface of the cylinder body, after the arc surface and the cylinder body are fixedly connected by welding, the supporting feet and the base are connected by bolts, thereby fixing the cylinder body on the base.

[0016] In summary, the utility model has the following beneficial technical effects:

[0017] 1. The device is provided with a corrugated pipe, through which vibration can be absorbed and the displacement of the cylinder body can be compensated, that is, the deformation amount of the casing can be completely absorbed, the fitting gap between the air inlet and the impeller at high temperature can be well solved, the stability of the fan can be improved while ensuring the operation efficiency, which is beneficial to ensuring the stability of the gap between the impeller and the air inlet and ensuring the operation efficiency of the fan;

[0018] 2. The device is provided with supporting feet and stud bolts, the cylinder body is fixed to the base through the supporting feet, ensuring that the air inlet does not move randomly with the casing at high temperature, the supporting feet are arranged at the center line, ensuring that the deformation amplitude of the air inlet at high temperature is small, and at the same time, by screwing the nuts on the stud bolts, the length of the corrugated pipe is changed, which is beneficial to adjusting and changing the size of the gap left between the air inlet of the cylinder body and the impeller according to the specifications and working conditions of the ventilator in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of an adjusting device for a ventilator air collecting port of the utility model after removing the bolts;

[0020] Figure 2It is a schematic structural view of the cylinder body in the adjusting device of the air collector of a ventilator of the present utility model;

[0021] Figure 3 It is a schematic structural view of the distance adjusting component in the adjusting device of the air collector of a ventilator of the present utility model;

[0022] Figure 4 It is a schematic structural view of the support feet in the adjusting device of the air collector of a ventilator of the present utility model;

[0023] Figure 5 It is a schematic structural view of the installation of the air inlet and the casing in the background art.

[0024] Explanation of the reference numerals:

[0025] 1. Cylinder body; 2. Bellows; 3. Flange end; 4. Casing; 5. Impeller; 6. Support feet; 7. Stud; 8. Nut. Specific embodiments

[0026] The following will further elaborate on the present utility model in conjunction with the attached Figures 1 - 5 drawings.

[0027] An embodiment of the present utility model discloses an adjusting device for the air collector of a ventilator.

[0028] Referring to Figure 1 and Figure 2 , it includes a base, a casing 4, a cylinder body 1 and a plurality of nuts 8. One end of the cylinder body 1 is lapped inside the casing 4. The casing 4 is fixedly connected to the top of the base. The cylinder body 1 is fixed to the base through the support feet 6 to ensure that the air inlet on the cylinder body 1 does not move randomly with the casing 4 at high temperatures, that is, the air inlet will not move forward and backward. The cylinder body 1 is located above the base. A distance adjusting component is lapped on the outer surface of the cylinder body 1. The distance adjusting component is movably connected to one side of the casing 4. Through the distance adjusting component, the size of the gap between the air inlet of the cylinder body 1 and the impeller 5 can be adjusted, so that the ventilator can adapt to different working conditions.

[0029] Referring to Figure 2 and Figure 4 , a flange end 3 and two support feet 6 are fixedly connected to the outer surface of the cylinder body 1. The two support feet 6 respectively fix the left and right sides of the cylinder body 1. A plurality of studs 7 are fixedly arranged around the cylinder body 1. A plurality of through holes one arranged in a circumferential array are opened on the outer surface of the flange end 3. A plurality of protrusions arranged in a circumferential array are fixedly connected to one side of the casing 4 close to the distance adjusting component. Each protrusion is threadedly connected with a stud 7.

[0030] Referring to Figure 1 and Figure 2 and Figure 3, the distance adjustment component includes a bellows 2 and a plurality of stud bolts 7. The inside of the bellows 2 is sleeved on the outer surface of the cylinder body 1. The two ends of the bellows 2 are respectively lapped on one side of the flange end 3 and one side of the casing 4. A plurality of stud bolts 7 are all sleeved inside the corresponding first through holes. One ends of the plurality of stud bolts 7 are all threadedly connected inside the bumps. One end of the stud bolt 7 penetrates through the flange end 3, and the other end is threadedly connected to the bump, thereby restricting the length of the bellows 2. When the gap between the air inlet of the cylinder body 1 and the impeller 5 that needs to be enlarged is to be adjusted, the nut 8 is screwed in the direction away from the casing 4, and the bellows 2 stretches with the expansion of the gap due to its own elasticity. When the gap between the air inlet of the cylinder body 1 and the impeller 5 that needs to be reduced is to be adjusted, the nut 8 is screwed in the direction close to the casing 4, and the bellows 2 compresses with the reduction of the gap due to its own elasticity.

[0031] Refer to Figure 2 , Figure 3 , wherein a part of the nuts 8 are clamped on one side of the flange end 3. The other ends of the plurality of stud bolts 7 are threadedly connected inside the corresponding nuts 8. The plurality of stud bolts 7 are circumferentially arrayed on the outer surface of the cylinder body 1. The cylinder body 1 is fixed on the casing 4 through the plurality of stud bolts 7 distributed in a circumferential and surrounding manner. Furthermore, when the casing 4 shakes, the bellows 2 between them absorbs shock and compensates for the displacement of the cylinder body 1, so that the cylinder body 1 does not move randomly with the casing 4 at high temperatures.

[0032] Refer to Figure 1 , Figure 2 , Figure 4 , one side of each of the two support feet 6 is an arc surface. The two arc surfaces are fixedly connected to the outer surface of the cylinder body 1. The two support feet 6 are horizontally placed and symmetrically distributed on both sides of the cylinder body 1. The two support feet 6 are arranged at the center line of the cylinder body 1. Horizontally, the cylinder body 1 is fixed on the base through the two support feet 6.

[0033] Refer to Figure 2 , Figure 4 , through holes two are opened at the bottoms of the two support feet 6 and the top of the base. The two support feet 6 are connected to the base by inserting bolts into the through holes one. The support feet 6 are locked through the nuts 8. At the same time, the connection of the bolts and the nuts 8 also facilitates the disassembly and installation of the support feet 6, thereby facilitating the replacement of the cylinder body 1. Bolts are inserted into each two corresponding through holes two. The outer surfaces of the corresponding bolts are threadedly connected inside two of the nuts 8. One sides of two of the nuts 8 are clamped on the outer surface of the base.

[0034] The implementation principle of the adjustment device for the air collector of the ventilator in the embodiment of the present utility model is as follows:

[0035] 1. The bellows 2 is installed between the flange end 3 of the air inlet of the cylinder body 1 and the casing 4, ensuring that the bellows 2 can fully absorb the deformation of the casing 4, thereby ensuring the stability of the air inlet of the cylinder body 1. Then, when shipping, the stud 7 is installed to ensure the stability of shipping.

[0036] 2. Due to different specifications and working conditions of the ventilator, the size of the gap between the air inlet of the cylinder body 1 and the impeller 5 is also different. The bellows 2 has elasticity, and both ends of the bellows 2 are always in contact with the flange end 3 and the casing 4. When it is necessary to increase the gap between the air inlet of the cylinder body 1 and the impeller 5, the nut 8 is turned away from the casing 4, and the bellows 2 is stretched as the gap expands due to its own elasticity. When it is necessary to decrease the gap between the air inlet of the cylinder body 1 and the impeller 5, the nut 8 is turned towards the casing 4, and the bellows 2 is compressed as the gap decreases due to its own elasticity.

[0037] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. An adjusting device for the air collecting port of a ventilator, characterized in that: It includes a base, a casing (4), a cylinder body (1) and a plurality of nuts (8). One end of the cylinder body (1) is lapped inside the casing (4). The casing (4) is fixedly connected to the top of the base. The cylinder body (1) is located above the base. An adjustable distance component is lapped on the outer surface of the cylinder body (1), and the adjustable distance component is movably connected to one side of the casing (4). A flange end (3) and two supporting feet (6) are fixedly connected to the outer surface of the cylinder body (1). A plurality of through holes one arranged in a circumferential array are formed on the outer surface of the flange end (3). A plurality of bumps arranged in a circumferential array are fixedly connected to one side of the casing (4) close to the adjustable distance component. The adjustable distance component includes a corrugated pipe (2) and a plurality of stud bolts (7). The inside of the corrugated pipe (2) is sleeved on the outer surface of the cylinder body (1). Two ends of the corrugated pipe (2) are respectively lapped on one side of the flange end (3) and one side of the casing (4).

2. The adjusting device for the air collector of a ventilator according to claim 1, characterized in that: A plurality of the stud bolts (7) are all sleeved inside the corresponding through holes one. One ends of the plurality of stud bolts (7) are all threadedly connected inside the corresponding bumps.

3. The adjusting device for the air collector of a ventilator according to claim 2, characterized in that: One part of the nuts (8) is clamped on one side of the flange end (3). The other ends of the plurality of stud bolts (7) are threadedly connected inside the corresponding nuts (8). The plurality of stud bolts (7) are distributed in a circumferential array on the outer surface of the cylinder body (1).

4. The adjusting device for the air collector of a ventilator according to claim 3, characterized in that: One side of each of the two supporting feet (6) is an arc surface. The two arc surfaces are fixedly connected to the outer surface of the cylinder body (1). The two supporting feet (6) are horizontally placed and symmetrically distributed on both sides of the cylinder body (1).

5. The adjusting device for the air collecting port of a ventilator according to claim 4, characterized in that: Through holes two are formed at the bottoms of the two supporting feet (6) and the top of the base. Bolts are inserted into each two corresponding through holes two. The inside of two of the nuts (8) are threadedly connected to the outer surfaces of the corresponding bolts. One sides of two of the nuts (8) are clamped on the outer surface of the base.

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