Ventilator volute structure capable of preventing shaking

Abstract

The utility model discloses an anti-shake ventilator volute structure which comprises a volute curved section, a volute base is arranged below the volute curved section, a volute straight section is arranged at the top end of the volute curved section, a straight section flange ring is welded to the front end of the volute straight section, a volute air inlet is fixedly connected to the right side of the volute curved section, and a volute air outlet is formed in the right side of the volute curved section. The bottom end of the volute curved section is provided with a connecting assembly which is convenient to install and prevents shaking. According to the anti-shaking ventilator volute structure, the volute fixing plate, the concave clamping base, the hard spring, the upper push plate, the fixing bolt and the anti-falling nut are arranged, when the anti-shaking ventilator volute structure is used, the volute fixing plate at the bottom of a volute curved section is pressed in along an opening in the top of the concave clamping base, the upper push plate is pressed to move downwards, and the hard spring retracts; and then the fixing bolt is driven into the side edge of the volute fixing plate and sleeved with the anti-falling nut for fixing, the stable mounting and anti-shaking functions are achieved, and the problem that the device does not have the stable mounting and anti-shaking functions is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan accessories, in particular to a ventilator volute structure capable of preventing shaking. Background Art

[0002] A ventilator is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. The main body of the ventilator consists of a volute, a motor and an impeller. The motor drives the impeller to rotate at high speed in the volute, sucking the external airflow into the volute and discharging it from the straight section opening of the volute.

[0003] The volute structures of common fans currently on the market are mostly similar in construction, with steel volute curved and straight sections as the main body, and a support frame at the bottom of the curved section, which is usually connected by bolts. There are some functional deficiencies in actual use and there is room for improvement. For example, the volute and the support frame are directly connected by bolts, and the base of the volute is an L-shaped angle steel. The bolts are driven vertically to connect the angle steel and the support frame. During the operation of the fan, fine vibrations can easily cause the bolts to loosen, causing the volute installation to loosen, and the fan will shake during operation. The use effect is poor, and it does not have the function of stable installation and anti-shaking.

[0004] Now, a novel anti-swaying fan volute structure is proposed to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a ventilator volute structure that prevents shaking, so as to solve the problem that the above-mentioned background technology does not have the function of stable installation and anti-swaying.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ventilator volute structure for preventing shaking, comprising a volute curved section, a volute base is arranged below the volute curved section, a volute straight section is arranged at the top of the volute curved section, a straight section flange ring is welded to the front end of the volute straight section, a volute air inlet is fixedly connected to the right side of the volute curved section, and a connecting component for easy installation of anti-sway is arranged at the bottom end of the volute curved section.

[0007] The connecting assembly includes two groups of volute fixing plates, which are respectively welded to both sides of the bottom of the volute curved section, and two groups of concave sockets are fixedly connected to the right side of the top of the volute base, and an upper push plate is longitudinally arranged inside the concave socket, and multiple groups of hard springs are installed at the bottom end of the upper push plate, and two groups of fixing bolts are respectively inserted at the front and rear ends of the right side of the concave socket, and the outer side of the fixing bolts is sleeved with anti-slip nuts.

[0008] Preferably, the shape and size of the outer portion of the volute fixing plate are matched with the shape and size of the inner portion of the concave holder, and the volute fixing plate can be displaced up and down along the inner portion of the concave holder.

[0009] Preferably, the shape and size of the top end of the concave socket are matched with the shape and size of the bottom end of the volute curved section, and the bottom end of the hard spring is connected to the bottom end inside the concave socket.

[0010] Preferably, the fixing bolt passes through the interior of the volute fixing plate and the concave seat and extends to the outside, and the thread on the outside of the fixing bolt matches the thread on the inside of the anti-slip nut.

[0011] Preferably, a motor fixing plate is welded to the left side of the top of the volute base, and limiting plates are fixedly connected to the two sides of the top of the motor fixing plate, and two groups of internal threaded mounting holes are respectively arranged on both sides of the limiting plate, and a motor mounting plate is arranged above the motor fixing plate, and adjustment plates are respectively welded on both sides of the bottom end of the motor mounting plate, and three groups of internal threaded adjustment holes are respectively arranged at the front and rear ends of both sides of the adjustment plate, and positioning bolts are laterally inserted into the internal threaded mounting holes.

[0012] Preferably, the positioning bolt passes through the internal thread mounting hole and extends into the internal thread adjustment hole, and the internal thread adjustment holes are arranged at equal intervals.

[0013] Preferably, a volute connection port is inserted into the interior of the volute straight section from left to right, a duct connection port is fixedly connected to the left side of the volute connection port, and a connection port flange ring is welded to the outside of the duct connection port.

[0014] Preferably, the interiors of the air duct connection port and the volute connection port are connected, and the outer diameters of the air duct connection port and the volute connection port are consistent with the inner diameter of the volute straight section.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the anti-swaying ventilator volute structure not only realizes the function of stable installation and anti-swaying, but also realizes the function of adjustable motor installation height and the function of enhancing the sealing of the air duct docking position;

[0016] (1) A volute fixing plate, a concave clamping seat, a hard spring, an upper push plate, a fixing bolt and an anti-slip nut are provided. When in use, the motor is installed on the left side of the volute curved section, and the fan impeller is installed inside the volute curved section. The motor drives the fan impeller to rotate at a high speed, sucking in external air through the volute air inlet and then discharging it from the volute straight section. The volute curved section is installed on the volute base. When installing the volute curved section, the volute fixing plate at the bottom of the volute curved section is pressed in along the opening at the top of the concave clamping seat, the upper push plate is pressed downward, the hard spring retracts, and then the fixing bolt is driven in from the side of the volute fixing plate, and the anti-slip nut is put on to fix it. The hard spring keeps pushing the volute fixing plate through the upper push plate, and cooperates with the fixing bolt to form a set of cross-cross forces, so that the fixing bolt is fixed in position and not easy to loosen, thereby simultaneously reducing the probability of shaking of the entire volute, and realizing the function of stable installation and anti-slip.

[0017] (2) The motor fixing plate, the limit plate, the internal thread mounting hole, the motor mounting plate, the adjustment plate, the internal thread adjusting hole and the positioning bolt are provided. When in use, the motor is mounted on the motor mounting plate. The actual height of the motor mounting plate can be adjusted according to the specific specifications of the motor. When adjustment is required, the positioning bolt is first loosened and pulled out. The limit plate on the motor fixing plate is separated from the adjustment plate at the bottom of the motor mounting plate. The motor mounting plate is moved up or down. The three groups of internal thread adjusting holes provide three specifications for selection. After adjusting the height, the positioning bolt is reinserted from the internal thread mounting hole. The positioning bolt is inserted into the internal thread adjusting hole of the corresponding height. The height of the motor mounting plate is fixed synchronously, and the motor mounting height is also fixed synchronously, thereby realizing the function of adjustable motor mounting height.

[0018] (3) By providing an air duct connection port, a connection port flange ring and a volute connection port, when in use, the air duct and the straight section flange ring on the volute straight section are connected to discharge the air flow. Before connecting the air duct, the volute connection port is inserted into the volute straight section, the connection port flange ring and the straight section flange ring fit together, the air duct is sleeved on the air duct connection port, the flange ring on the air duct and the connection port flange ring and the straight section flange ring fit tightly, and the connection can be completed by driving bolts. The square inner tube formed by the air duct connection port and the volute connection port can increase the sealing of the connection position between the air duct and the volute straight section, reduce airflow leakage, and realize the function of enhancing the sealing of the air duct connection position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the utility model in a side view;

[0021] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a side view structural diagram of the limit plate and the adjustment plate of the utility model in the separated state;

[0023] Figure 5 It is a front view structural diagram of the volute connection port of the utility model.

[0024] In the figure: 1. volute curved section; 2. volute base; 3. volute straight section; 4. straight section flange ring; 5. volute fixing plate; 6. concave holder; 7. hard spring; 8. push-up plate; 9. fixing bolt; 10. anti-drop nut; 11. motor fixing plate; 12. limit plate; 13. internal thread mounting hole; 14. motor mounting plate; 15. adjustment plate; 16. internal thread adjusting hole; 17. positioning bolt; 18. air duct connection port; 19. connection port flange ring; 20. volute connection port; 21. volute air inlet. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1: Please refer to Figure 1-5 A volute structure of a ventilator for preventing shaking, comprising a volute curved section 1, a volute base 2 is arranged below the volute curved section 1, a volute straight section 3 is arranged at the top of the volute curved section 1, a straight section flange ring 4 is welded to the front end of the volute straight section 3, a volute air inlet 21 is fixedly connected to the right side of the volute curved section 1, and a connection component for facilitating the installation of anti-sway is arranged at the bottom end of the volute curved section 1;

[0027] See also Figure 1-5 A ventilator volute structure for preventing shaking also includes a connecting component, which includes two groups of volute fixing plates 5, which are respectively welded to the two sides of the bottom of the volute curved section 1, and two groups of concave card seats 6 are fixedly connected to the right side of the top of the volute base 2. An upper push plate 8 is longitudinally arranged inside the concave card seat 6, and a plurality of groups of hard springs 7 are installed at the bottom end of the upper push plate 8. Two groups of fixing bolts 9 are respectively inserted at the front and rear ends of the right side of the concave card seat 6, and an anti-drop nut 10 is sleeved on the outside of the fixing bolt 9;

[0028] The shape and size of the outer part of the volute fixing plate 5 match the shape and size of the inner part of the concave clamping seat 6. The volute fixing plate 5 can move up and down along the inner part of the concave clamping seat 6. The shape and size of the top of the concave clamping seat 6 match the shape and size of the bottom of the volute curved section 1. The bottom end of the hard spring 7 is connected to the bottom end of the inner part of the concave clamping seat 6. The fixing bolt 9 passes through the volute fixing plate 5 and the inner part of the concave clamping seat 6 and extends to the outside. The outer thread of the fixing bolt 9 matches the inner thread of the anti-slip nut 10, which can prevent the volute from shaking while stabilizing the installation;

[0029] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, the volute fixing plate 5 at the bottom of the volute curved section 1 is pressed in along the opening at the top of the concave seat 6, the upper push plate 8 is pressed downward, the hard spring 7 retracts, and then the fixing bolt 9 is driven in from the side of the volute fixing plate 5, and the anti-slip nut 10 is put on to fix it. The hard spring 7 keeps pushing the volute fixing plate 5 through the upper push plate 8, and cooperates with the fixing bolt 9 to form a set of cross forces, so that the fixing bolt 9 is fixed in position and not easy to loosen, thereby simultaneously reducing the probability of the overall shaking of the volute.

[0030] Embodiment 2: A motor fixing plate 11 is welded to the left side of the top of the volute base 2, and the two sides of the top of the motor fixing plate 11 are respectively fixedly connected to the limiting plates 12, and two groups of internal threaded mounting holes 13 are respectively arranged on both sides of the limiting plates 12, and a motor mounting plate 14 is arranged above the motor fixing plate 11, and adjustment plates 15 are respectively welded to the two sides of the bottom end of the motor mounting plate 14, and three groups of internal threaded adjustment holes 16 are respectively arranged at the front and rear ends of both sides of the adjustment plate 15, and positioning bolts 17 are transversely inserted into the internal threaded mounting holes 13, and the positioning bolts 17 penetrate the internal threaded mounting holes 13 and extend into the internal threaded adjustment holes 16. The internal threaded adjustment holes 16 are arranged at equal intervals, and the installation height of the motor can be adjusted to match motors of different specifications;

[0031] Specifically, Figure 1 and Figure 4 As shown, loosen and pull out the positioning bolt 17, the limit plate 12 on the motor fixing plate 11 is separated from the adjustment plate 15 at the bottom of the motor mounting plate 14, and the motor mounting plate 14 is moved up or down. The three groups of internal thread adjustment holes 16 provide three specifications for selection. After adjusting the height, the positioning bolt 17 is reinserted from the internal thread mounting hole 13, and the positioning bolt 17 is inserted into the internal thread adjustment hole 16 of the corresponding height. The height of the motor mounting plate 14 is also fixed synchronously, and the motor installation height is also fixed synchronously.

[0032] Embodiment 3: A volute connection port 20 is inserted from left to right inside the volute straight section 3, and a duct connection port 18 is fixedly connected to the left side of the volute connection port 20. A connection port flange ring 19 is welded to the outside of the duct connection port 18. The insides of the duct connection port 18 and the volute connection port 20 are connected. The outer diameters of the duct connection port 18 and the volute connection port 20 are consistent with the inner diameter of the volute straight section 3, thereby increasing the sealing performance of the duct connection position;

[0033] Specifically, Figure 1 and Figure 5 As shown, the volute connection port 20 is inserted into the volute straight section 3, the connection port flange ring 19 and the straight section flange ring 4 fit together, the air duct is sleeved on the air duct connection port 18, the flange ring on the air duct and the connection port flange ring 19 and the straight section flange ring 4 fit closely together, and the connection can be completed by driving bolts. The square inner tube formed by the air duct connection port 18 and the volute connection port 20 can increase the sealing of the connection position between the air duct and the volute straight section 3 and reduce airflow leakage.

[0034] Working principle: When the utility model is in use, first, the motor is installed on the left side of the volute curved section 1, and the fan impeller is installed inside the volute curved section 1. The motor drives the fan impeller to rotate at high speed, sucking in external air through the volute air inlet 21, and then discharging it from the volute straight section 3. The volute curved section 1 is installed on the volute base 2. When installing the volute curved section 1, the volute fixing plate 5 at the bottom of the volute curved section 1 is pressed in along the opening at the top of the concave seat 6, and the upper push plate 8 is pressed downward, and the hard spring 7 retracts. Then, the fixing bolt 9 is driven into the side of the volute fixing plate 5, and the anti-slip nut 10 is put on to fix it. The hard spring 7 keeps pushing the volute fixing plate 5 through the upper push plate 8, and cooperates with the fixing bolt 9 to form a group of cross-cross forces, so that the fixing bolt 9 is fixed in position and not easy to loosen, thereby simultaneously reducing the probability of the overall shaking of the volute. The motor is installed on the motor mounting plate 14. The actual height of the motor mounting plate 14 can be adjusted according to the specific specifications of the motor. When adjusting, first loosen and pull out the positioning bolt 17, and the limit plate 12 on the motor fixing plate 11 is separated from the adjustment plate 15 at the bottom of the motor mounting plate 14. Move the motor mounting plate 14 up or down, and the three groups of internal thread adjustment holes 16 provide three specifications for selection. After adjusting the height, re-insert the positioning bolt 17 from the internal thread mounting hole 13, and the positioning bolt 17 is inserted into the internal thread adjustment hole 16 of the corresponding height. The height of the motor mounting plate 14 is also fixed synchronously, and the motor installation height is also fixed synchronously. The air duct and the straight section flange ring 4 on the volute straight section 3 are butted together to discharge the airflow. Before connecting the air duct, the volute connection port 20 is inserted into the volute straight section 3, the connection port flange ring 19 and the straight section flange ring 4 fit together, the air duct is sleeved on the air duct connection port 18, the flange ring on the air duct fits tightly with the connection port flange ring 19 and the straight section flange ring 4, and the connection can be completed by driving bolts. The square inner tube formed by the air duct connection port 18 and the volute connection port 20 can increase the sealing of the connection position between the air duct and the volute straight section 3 and reduce airflow leakage.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A volute structure of a fan for preventing shaking, comprising a volute curved section (1), characterized in that: A volute base (2) is provided below the volute curved section (1), a volute straight section (3) is provided at the top of the volute curved section (1), a straight section flange ring (4) is welded to the front end of the volute straight section (3), a volute air inlet (21) is fixedly connected to the right side of the volute curved section (1), and a connection component for facilitating installation of anti-sway is provided at the bottom end of the volute curved section (1); The connecting assembly comprises two groups of volute fixing plates (5), the two groups of volute fixing plates (5) are respectively welded to the two sides of the bottom of the volute curved section (1), and two groups of concave clamping seats (6) are fixedly connected to the right side of the top of the volute base (2), and an upper push plate (8) is longitudinally arranged inside the concave clamping seat (6), and a plurality of groups of hard springs (7) are installed at the bottom end of the upper push plate (8), and two groups of fixing bolts (9) are respectively inserted at the front and rear ends of the right side of the concave clamping seat (6), and the outer side of the fixing bolt (9) is sleeved with an anti-slip nut (10).

2. The anti-swaying volute structure of a fan according to claim 1, characterized in that: The shape and size of the exterior of the volute fixing plate (5) are matched with the shape and size of the interior of the concave clamping seat (6), and the volute fixing plate (5) can move up and down along the interior of the concave clamping seat (6).

3. The anti-swaying volute structure of a fan according to claim 1, characterized in that: The shape and size of the top end of the concave holder (6) are matched with the shape and size of the bottom end of the volute curved section (1), and the bottom end of the hard spring (7) is connected to the bottom end inside the concave holder (6).

4. The anti-swaying ventilator volute structure according to claim 1, characterized in that: The fixing bolt (9) passes through the interior of the volute fixing plate (5) and the concave clamping seat (6) and extends to the outside, and the external thread of the fixing bolt (9) matches the internal thread of the anti-slip nut (10).

5. The anti-swaying volute structure of a fan according to claim 1, characterized in that: A motor fixing plate (11) is welded to the left side of the top of the volute base (2), and the two sides of the top of the motor fixing plate (11) are respectively fixedly connected to limit plates (12), and two groups of internal threaded mounting holes (13) are respectively arranged on the two sides of the limit plates (12), and a motor mounting plate (14) is arranged above the motor fixing plate (11), and adjustment plates (15) are respectively welded to the two sides of the bottom end of the motor mounting plate (14), and three groups of internal threaded adjustment holes (16) are respectively arranged at the front and rear ends of both sides of the adjustment plate (15), and positioning bolts (17) are transversely inserted into the internal parts of the internal threaded mounting holes (13).

6. The anti-swaying volute structure of a fan according to claim 5, characterized in that: The positioning bolt (17) passes through the internal thread installation hole (13) and extends into the interior of the internal thread adjustment hole (16), and the internal thread adjustment holes (16) are arranged at equal intervals.

7. The anti-swaying volute structure of a fan according to claim 1, characterized in that: A volute connection port (20) is inserted into the interior of the volute straight section (3) from left to right, a duct connection port (18) is fixedly connected to the left side of the volute connection port (20), and a connection port flange ring (19) is welded to the outside of the duct connection port (18).

8. The anti-swaying volute structure of a fan according to claim 7, characterized in that: The interiors of the air duct connection opening (18) and the volute connection opening (20) are connected, and the outer diameters of the air duct connection opening (18) and the volute connection opening (20) are consistent with the inner diameter of the volute straight section (3).

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