Ventilator with adjustable left-right rotating direction and angle

Abstract

The utility model belongs to the technical field of centrifugal ventilators, and particularly relates to a left-right turning direction and angle-adjustable ventilator which comprises a base, a support, a power source, a rotor, an impeller, a machine shell assembly, supporting legs and a cover plate assembly, the support is fixedly connected with the base, a shell of the power source is fixedly connected with the support, one end of the rotor is fixedly connected with an output shaft of the power source, and the other end of the rotor is fixedly connected with the cover plate assembly. The other end extends into the shell assembly and is fixedly connected with the impeller; a long-strip-shaped kidney-shaped hole is formed in the machine shell assembly, a long-strip-shaped fixing hole matched with the long-strip-shaped kidney-shaped hole is formed in the supporting leg, the supporting leg is fixedly installed between the base and the machine shell assembly, and the cover plate assembly covers the impeller and is fixedly connected with the machine shell assembly. The rotation direction and the angle of the fan casing can be conveniently adjusted, and the universality of the casing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a left-right rotation direction and angle adjustable fan. Background Art

[0002] Centrifugal fans are widely used mechanical equipment in industrial production. In response to the call for energy conservation and consumption reduction, many companies will choose new first-level energy-efficient fans to replace the original on-site parameter fans. Due to problems such as pipeline layout and space in the production workshop, different customers have different requirements for the direction and angle of rotation of the fan. Therefore, the fan manufacturer can only wait for the customer to confirm the direction and angle before starting the production process, resulting in a long delivery cycle, and the fan manufacturer cannot stock in large quantities. In addition, if the customer confirms the left and right rotation incorrectly or the angle used at the installation site is not fully adapted, and some chemical parks cannot open fire cutting, etc., the customer basically cannot modify it on site, and it is also very troublesome to replace accessories. If such structural problems occur, the customer can only replace the entire product, which consumes production costs. Utility Model Content

[0003] The utility model aims at solving the above problems and specifically designs a left-right rotation direction and angle adjustable ventilator, so that the rotation direction and angle of the fan casing can be conveniently adjusted according to the conditions of different customer sites, thereby increasing the versatility of the casing.

[0004] To achieve the above-mentioned purpose, the utility model provides a left-right rotation direction and angle adjustable ventilator, comprising a base, a bracket, a power source, a rotor, an impeller, a casing assembly, a leg and a cover assembly, the bracket being fixedly connected to the base, the casing of the power source being fixedly connected to the bracket, one end of the rotor being fixedly connected to the output shaft of the power source, and the other end extending into the casing assembly and fixedly connected to the impeller; the casing assembly is provided with a long waist-shaped hole, the leg is provided with a long fixing hole matching the long waist-shaped hole, the leg is fixedly installed between the base and the casing assembly, the cover assembly covers the impeller and is fixedly connected to the casing assembly.

[0005] Preferably, the casing assembly includes two side panels that are symmetrically arranged and fixedly spliced, and the side panels are also provided with air inlets.

[0006] Preferably, the housing assembly is additionally provided with a reinforcing flange having threaded holes.

[0007] Preferably, the cover plate assembly includes a rear cover plate and a support member, the rear cover plate is provided with a long flange hole, the rear cover plate covers the impeller and is fixedly connected to the reinforcing flange, and the support member is fixedly installed between the rear cover plate and the bracket.

[0008] Preferably, the support member includes a vertical rib plate and a triangular rib. The vertical rib plate is clamped to the rear cover plate through the long strip flange holes, one end of the triangular rib is fixedly connected to the vertical rib plate, and the other end is fixedly connected to the bracket.

[0009] Preferably, there are multiple groups of the legs, which are fixedly connected to the side plate through fasteners and the long strip waist-shaped holes.

[0010] In summary, the present utility model has the following advantages and beneficial technical effects:

[0011] 1. The present utility model utilizes the modular assembled and combined casing components and legs, which is convenient to adjust the rotation direction and angle of the fan while assembling according to the actual situation on site, realizing the standardized and batch production of the ventilator, facilitating the on-site maintenance and replacement of accessories by users, increasing the utilization rate of components, solving the problem of the casing being scrapped due to incorrect rotation direction on site, and solving the problems such as inappropriate on-site modification and installation due to special installation angles.

[0012] 2. Compared with the existing threaded positioning holes, the long strip waist-shaped holes for fixing the legs in the casing assembly of the present utility model can finely adjust the position of the fasteners based on the long strip waist-shaped holes for on-site modification, change the air outlet angle of the fan, and ensure the ventilation performance such as smooth air outlet of the fan. Therefore, it can be produced and stocked in batches, the parts have high versatility, and the delivery period is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0014] Figure 1 is the front view schematic diagram of the present utility model;

[0015] Figure 2 is the Figure 1 partial enlarged view taken along B in

[0016] Figure 3 is the side view schematic diagram of the present utility model;

[0017] Figure 4 is the Figure 3 partial enlarged view taken along A in

[0018] Figure 5 is the structural schematic diagram of the legs in the present utility model;

[0019] Figure 6 is the side view schematic diagram of the cover plate assembly in the present utility model;

[0020] Figure 7 is the front view schematic diagram of the cover plate assembly in the present utility model.

[0021] The reference numerals in the drawings are as follows:

[0022] 1. Base; 2. Bracket; 3. Power source; 4. Rotor; 5. Impeller;

[0023] 6. Housing assembly; 61. Long strip waist-shaped hole; 62. Side plate; 63. Air inlet; 64. Reinforcing flange;

[0024] 7. Leg; 71. Long strip fixing hole;

[0025] 8. Cover plate assembly; 81. Rear cover plate; 82. Long strip flange hole; 83. Vertical rib plate; 84. Triangular rib. Detailed implementation manners

[0026] The following further describes the present utility model in detail with reference to the attached Figures 1 - 7 drawings:

[0027] As Figures 1 - 2 shown, this embodiment discloses a left-right rotation direction and angle adjustable ventilator, which includes a base 1, a bracket 2, a power source 3, a rotor 4, an impeller 5, a housing assembly 6, a leg 7 and a cover plate assembly 8. The bracket 2 is fixedly installed on the base 1 through bolts. The power source 3 is a motor, and the motor housing is fixedly installed on the bracket 2 through bolts. One end of the rotor 4 is fixedly connected to the output shaft of the power source 3 through a coupling, and the other end extends into the interior of the housing assembly 6 and is fixedly sleeved in the inner ring of the impeller 5. A plurality of groups of long strip waist-shaped holes 61 are formed at the edge of the housing assembly 6. Through holes and long strip fixing holes 71 are respectively formed on two side walls of the leg 7 that are perpendicular to each other, wherein the long strip fixing holes 71 are adapted to the long strip waist-shaped holes 61. The leg 7 is fixedly installed on the base 1 through bolts at the through hole, and is fixedly connected to the housing assembly 6 through bolts at the long strip fixing holes 71. The cover plate assembly 8 covers the impeller 5 and is fixedly connected to the housing assembly 6 at the same time.

[0028] As Figures 3 - 5 shown, the housing assembly 6 includes two side plates 62 that are symmetrically arranged with the same structural dimensions and are fixedly spliced. The side plates 62 are provided with air inlets 63 in a penetrating manner; a reinforcing flange 64 is welded inside the housing assembly 6, and the reinforcing flange 64 is provided with threaded holes.

[0029] As Figures 6 - 7 shown, the cover plate assembly 8 includes a rear cover plate 81 and a support member. The rear cover plate 81 is provided with long strip flange holes 82. The rear cover plate 81 is clamped at the air inlet 63 of the side plate 62 near one end of the impeller 5 and is fixedly connected to the reinforcing flange 64 through bolts. The support member is fixedly installed between the rear cover plate 81 and the bracket 2; the support member includes a vertical rib plate 83 and a triangular rib 84. One end face of the vertical rib plate 83 matches the long strip flange holes 82, and the rear cover plate 81 is clamped through the long strip flange holes 82. One end of the triangular rib 84 is fixedly connected to the vertical rib plate 83 through bolts, and the other end is fixedly connected to the bracket 2.

[0030] As Figure 1 shown, there are four sets of outriggers 7, which are fixedly installed between the base 1 and the casing assembly 6.

[0031] The working principle of a left - right rotation and angle - adjustable ventilator of the present utility model is as follows:

[0032] Use bolts to pre - tighten the outriggers 7 onto the base 1. Determine the binding position of the casing assembly 6 according to the left - right rotation and angle requirements of the fan. After hoisting the casing assembly 6 above the base 1, gradually lower the casing assembly 6 to an appropriate height. Adjust the assembly angle between the outriggers 7 and the side plate 62 during assembly. The outlet angles of a conventional fan are 0°, 45°, 90°, 135°, 180°, and 225°. The casing assembly 6 of this fan can adjust the position clamped by bolts based on the long slotted holes 61 to achieve the adjustment of non - standard special angles. After adjusting the air outlet angle, tighten the bolts for the assembly of the outriggers 7 with the base 1 and the side plate 62 to ensure the structural stability of the assembled fan. Finally, install the rear cover plate 81. According to the pipeline layout at the installation site, rotate the rear cover plate 81 so that it fits over the air inlet 63 of the side plate 62. After tightening the bolts between the rear cover plate 81 and the reinforcing flange 64, install the support members to complete the installation of the fan equipment at the customer's site.

[0033] The above are all preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A left - right rotation direction and angle adjustable ventilator, characterized in that: It includes a base, a bracket, a power source, a rotor, an impeller, a casing assembly, legs and a cover plate assembly. The bracket is fixedly connected to the base, the housing of the power source is fixedly connected to the bracket, one end of the rotor is fixedly connected to the output shaft of the power source, and the other end extends into the casing assembly and is fixedly connected to the impeller; the casing assembly is provided with a long strip-shaped waist-shaped hole, and the leg is provided with a long strip-shaped fixing hole matching the long strip-shaped waist-shaped hole. The leg is fixedly installed between the base and the casing assembly, and the cover plate assembly covers the impeller and is fixedly connected to the casing assembly.

2. The adjustable left - right rotation direction and angle ventilator according to claim 1, wherein: The casing assembly includes two side plates that are symmetrically arranged and fixedly spliced, and the side plates are also provided with air inlets.

3. The adjustable left - right rotation direction and angle ventilation fan according to claim 2, wherein: The casing assembly is additionally provided with a reinforcing flange provided with threaded holes.

4. The adjustable left - right rotation direction and angle ventilator according to claim 3, wherein: The cover plate assembly includes a rear cover plate and a support member. The rear cover plate is provided with long strip-shaped flange holes. The rear cover plate covers the impeller and is fixedly connected to the reinforcing flange. The support member is fixedly installed between the rear cover plate and the bracket.

5. The adjustable left - right rotation direction and angle ventilation fan according to claim 4, characterized in that: The support member includes a vertical rib plate and a triangular rib. The vertical rib plate is clamped to the rear cover plate through the long strip-shaped flange holes. One end of the triangular rib is fixedly connected to the vertical rib plate, and the other end is fixedly connected to the bracket.

6. The adjustable axial-flow fan with left and right rotation directions and angles according to claim 5, wherein: There are multiple groups of the legs, which are fixedly connected to the side plates through fasteners and the long strip-shaped waist-shaped holes.

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