Anti-explosion axial flow fan

Abstract

The utility model discloses an explosion-proof axial flow fan, which belongs to the technical field of axial flow fans and comprises a shell, a fan is arranged in the shell, protective nets are arranged on two sides of the shell, two symmetrically distributed support blocks are fixedly mounted on the side wall of the shell, a bottom plate is arranged below the shell, the bottom ends of the two support blocks are fixedly connected with the top end of the bottom plate, and a base is arranged below the bottom plate. Four symmetrically-distributed stabilizing rods are fixedly mounted at the top end of the base, the top ends of the stabilizing rods slidably penetrate through the bottom plate, a damping assembly is arranged between the bottom plate and the base, and shielding assemblies are arranged on the two sides of the shell. Through the arrangement of the damping assembly, the second springs are used for absorbing vibration force generated when equipment operates, then the dampers are used for counteracting rebound force generated by the second springs on the same side, the damping effect can be achieved, and the use stability of the equipment can be kept easily.

Description

Technical Field

[0001] This utility model relates to the field of axial flow fan technology, and more specifically, to an explosion-proof axial flow fan. Background Technology

[0002] At present, explosion-proof axial flow fans have become a necessity in many places in China. They are widely used in schools, hospitals, grain and oil processing, papermaking, and pharmaceutical industries. For the transportation of flammable gases and workshops and warehouses with flammable oil mist, explosion-proof axial flow fans are particularly important. The function of explosion-proof axial flow fans is to remove dangerous gases, control temperature and humidity, and prevent explosion accidents in flammable and explosive environments through explosion-proof design and forced ventilation, while maintaining environmental safety and stable equipment operation.

[0003] Some existing explosion-proof axial flow fans lack a vibration damping structure at the bottom, and the equipment is fixed to the mounting point with bolts. Vibration may occur during operation, and prolonged vibration can cause the bolts to loosen, reducing the stability of the installation. Therefore, we propose an explosion-proof axial flow fan. Utility Model Content

[0004] To solve the above problems, this utility model provides an explosion-proof axial flow fan, which adopts the following technical solution:

[0005] An explosion-proof axial flow fan includes a housing, a fan inside the housing, protective nets on both sides of the housing, two symmetrically distributed support blocks fixedly installed on the side wall of the housing, a base plate below the housing, the bottom ends of the two support blocks being fixedly connected to the top end of the base plate, a base below the base plate, four symmetrically distributed stabilizing rods fixedly installed on the top end of the base, the top ends of the stabilizing rods sliding through the base plate, a shock-absorbing component between the base plate and the base, and shielding components on both sides of the housing.

[0006] By adopting the above technical solution, when using the equipment, the staff assembles the various components and fixes the base to the mounting point using existing fasteners. An internal fan is installed in the housing, which provides ventilation. When the fan operates, it may generate vibrations. A shock-absorbing component is installed between the base plate and the base to counteract the vibrations generated by the fan, thus providing shock absorption and buffering to maintain the equipment's performance. A stabilizing rod is installed at the top of the base, sliding through the base plate. When the equipment vibrates, the base plate can slightly rise and fall on the side wall of the stabilizing rod. The stabilizing rod helps to limit and stabilize the base plate, maintaining the stability of the base plate and top structure during rise and fall. Protective nets are installed on both sides of the housing to protect the internal structure, and shielding components are also installed on both sides to seal the sides of the housing, helping to prevent dust from entering the housing when the equipment is not in use.

[0007] Furthermore, the shock absorption assembly includes four shock absorbers located at the top of the base. The ends of the telescopic shafts of the shock absorbers are fixedly connected to the bottom of the base plate, and a second spring is fitted on the side wall of each telescopic shaft.

[0008] By adopting the above technical solution, vibrations may occur when the equipment is running. The second spring absorbs the vibration force generated during the operation of the equipment, and then the shock absorber counteracts the rebound force generated by the second spring on the same side, which can play a role in shock absorption and help maintain the stability of the equipment.

[0009] Furthermore, the shielding assembly includes retaining rings fixedly installed on both sides of the housing, baffles provided on both sides of the housing, connecting plates fixedly installed on the sidewalls of the two baffles, a dual-axis motor fixedly installed on the side of the housing away from the bottom plate, rotating rods fixedly installed at the ends of the two output shafts of the dual-axis motor, and the opposite ends of the two rotating rods fixedly connected to the side opposite to the connecting plate on the same side, and grooves matching the baffles on the same side are opened on the inner sides of the two retaining rings.

[0010] By adopting the above technical solution, the rotating rod is driven by a dual-axis motor to rotate, and the rotating rod drives the connecting plate on the same side to rotate. The connecting plate, along with the baffle on the same side, rotates, which can adjust the position of the baffle. The baffle is driven by the dual-axis motor to rotate and fit against the opposite side of the shell, thus sealing the shell. This helps to prevent dust from entering the shell when the equipment is not in use. In addition, the side wall of the shell is equipped with a retaining ring, which can position the baffle and help maintain the accuracy of the fit between the baffle and the side wall of the shell.

[0011] Furthermore, the side wall of the housing is provided with two symmetrically distributed stabilizing frames. Both stabilizing frames are fixed to the housing by the first bolt. Two symmetrically distributed positioning blocks are fixedly installed at the bottom of each of the two stabilizing frames. The side wall of the housing is provided with positioning grooves that match the positioning blocks on the same side.

[0012] By adopting the above technical solution, the staff places the stabilizing frame on the side wall of the shell. The positioning block at the bottom of the stabilizing frame engages with the positioning groove on the side wall of the shell, which serves to position the stabilizing frame and facilitates subsequent fixing with the first bolt. The rotating rod passes through the stabilizing frame on the same side, and the stabilizing frame can support and stabilize the rotating rod, which helps to maintain the stability of the rotating rod when it rotates.

[0013] Furthermore, four symmetrically distributed first springs are provided between the base plate and the base. Each of the four first springs has a mounting plate fixedly installed at both ends. Each mounting plate has a plug fixedly installed on the side away from the first spring on the same side. The bottom end of the base plate and the top end of the base are provided with slots that match the plugs on the same side. The side walls of the plugs are all covered with anti-slip pads.

[0014] By adopting the above technical solution, a first spring is provided between the base plate and the base. The first spring not only plays a buffering role, but also, through the cooperation of the stabilizing rod and the first spring, can support and stabilize the base plate and the top structure. There are mounting plates at both ends of the first spring, and there are inserts on opposite sides of the two mounting plates. The first spring can be installed by engaging the inserts with the slots opened in the side walls of the base plate and the base. When it is necessary to remove the first spring, the operator can press the first spring on the same side through the mounting plate to retract the first spring, and then the insert can be disengaged from the slot on the same side to remove the first spring. There is no need to disassemble the entire equipment, which facilitates maintenance and disassembly.

[0015] Furthermore, limit blocks are fixedly installed at the bottom of both support blocks, and a limit groove matching the limit block is opened at the top of the base plate.

[0016] By adopting the above technical solution, when the assembled shell and base plate are installed, the workers can engage the limiting block installed at the bottom of the support block with the limiting groove opened at the top of the base plate, which can play the role of positioning the shell. Then, the support block and base plate are fixed by fasteners in the existing technology.

[0017] Furthermore, the inner wall of the shell is provided with sound-absorbing cotton, and each of the two protective mesh sidewalls is provided with two symmetrically distributed locking blocks. The shell has locking slots on both sides that match the locking blocks on the same side, and the locking blocks and the shell are fixed together by a second bolt.

[0018] By adopting the above technical solution, the shell is equipped with sound-absorbing cotton, which can absorb noise. The protective net and the shell are positioned by locking blocks and slots, and then fixed by a second bolt. The cooperation of the locking blocks, slots and the second bolt facilitates subsequent disassembly and maintenance.

[0019] In summary, this utility model has the following beneficial technical effects:

[0020] (1) In this utility model, by setting the shock absorption component, the second spring absorbs the vibration force generated when the equipment is running, and then the shock absorber counteracts the rebound force generated by the second spring on the same side, which can play the role of shock absorption and help maintain the stability of the equipment.

[0021] (2) In this utility model, a first spring is provided between the base plate and the base. The first spring not only plays a buffering role, but also plays a supporting and balancing role for the base plate. A stabilizing rod is provided at the top of the base. The stabilizing rod slides through the base plate. When the equipment is running, the base plate can be positioned on the stabilizing rod to produce a slight rise and fall. The stabilizing rod can further limit and stabilize the base plate and the top structure.

[0022] (3) In this utility model, shielding components are provided on both sides of the housing to seal the sides of the housing, which helps to prevent dust or moisture from entering the housing when the equipment is not in use, thus achieving a protective effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the explosion-proof axial flow fan of this utility model;

[0024] Figure 2 This utility model is for an explosion-proof axial flow fan. Figure 1 Enlarged view of A in the middle;

[0025] Figure 3 This is an unfolded view of the components in the explosion-proof axial flow fan of this utility model;

[0026] Figure 4 This utility model is for an explosion-proof axial flow fan. Figure 3 Enlarged view of B in the middle;

[0027] Figure 5 This utility model is for an explosion-proof axial flow fan. Figure 3 Enlarged view of C;

[0028] Figure 6 This is an exploded view of the shielding component in the explosion-proof axial flow fan of this utility model.

[0029] Explanation of the labels in the diagram:

[0030] 1. Housing; 2. Retaining ring; 3. Support block; 4. Base plate; 5. Base; 6. Stabilizing frame; 7. Rotating rod; 8. Baffle; 9. Dual-axis motor; 10. Connecting plate; 11. Protective net; 12. First spring; 13. Second spring; 14. Shock absorber; 15. Mounting plate; 16. Insert block; 17. Positioning block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0035] Please see Figure 1-6 An explosion-proof axial flow fan includes a housing 1, a fan inside the housing 1, protective nets 11 on both sides of the housing 1, two symmetrically distributed support blocks 3 fixedly installed on the side wall of the housing 1, a base plate 4 below the housing 1, the bottom ends of the two support blocks 3 are fixedly connected to the top end of the base plate 4, a base 5 is provided below the base plate 4, four symmetrically distributed stabilizing rods are fixedly installed on the top end of the base 5, the top ends of the stabilizing rods slide through the base plate 4, a shock-absorbing assembly is provided between the base plate 4 and the base 5, the shock-absorbing assembly includes four shock absorbers 14 set at the top of the base 5, the ends of the telescopic shafts of the shock absorbers 14 are fixedly connected to the bottom end of the base plate 4, and a second spring 13 is sleeved on the side wall of the telescopic shaft of the shock absorbers 14.

[0036] When in use, the base 5 is fixed to the mounting point using fasteners of existing technology. The housing 1 is equipped with a fan. When the fan runs, it can play a role in ventilation. When the fan runs, it may generate vibration. The vibration force generated by the operation of the equipment is absorbed by the second spring 13. Then, the shock absorber 14 counteracts the rebound force generated by the second spring 13 on the same side, which can play a role in shock absorption and help maintain the stability of the equipment.

[0037] Four symmetrically distributed first springs 12 are provided between the base plate 4 and the base 5. Each of the four first springs 12 has a mounting plate 15 fixedly installed at both ends. A plug 16 is fixedly installed on the side of each mounting plate 15 away from the first spring 12 on the same side. Slots matching the plug 16 are provided at the bottom of the base plate 4 and the top of the base 5. Anti-slip pads are fitted on the sidewalls of the plug 16. The first springs 12 between the base plate 4 and the base 5 not only serve as a buffer but also, through the cooperation of the stabilizing rod and the first springs 12, provide support and stability to the base plate 4 and the top structure. The first spring 12 has mounting plates 15 at both ends, and insert blocks 16 are provided on opposite sides of the two mounting plates 15. The first spring 12 can be installed by engaging the insert blocks 16 with the slots opened on the side walls of the base plate 4 and the base 5. When the first spring 12 needs to be removed, the operator can press the first spring 12 on the same side through the mounting plates 15 to retract the first spring 12. Then the insert blocks 16 can be disengaged from the slots on the same side, and the first spring 12 can be taken out without disassembling the entire equipment, which is convenient for maintenance and disassembly. The rebound force generated by the first spring 12 can also be offset by the operation of the shock absorber 14.

[0038] Both sides of the housing 1 are provided with shielding components. The shielding components include retaining rings 2 fixedly installed on both sides of the housing 1. Both sides of the housing 1 are provided with baffles 8. Both baffles 8 are fixedly installed with connecting plates 10 on their sidewalls. A dual-axis motor 9 is fixedly installed on the side of the housing 1 away from the bottom plate 4. Rotating rods 7 are fixedly installed at the ends of the two output shafts of the dual-axis motor 9. The opposite ends of the two rotating rods 7 are fixedly connected to the opposite side of the connecting plate 10 on the same side. The inner sides of the two retaining rings 2 are provided with grooves that match the baffles 8 on the same side.

[0039] The rotating rod 7 is driven to rotate by the dual-axis motor 9, which in turn drives the connecting plate 10 on the same side to rotate. The connecting plate 10, along with the baffle 8 on the same side, rotates, thereby adjusting the position of the baffle 8. The baffle 8 is rotated by the dual-axis motor 9 to fit against the side of the housing 1, thus sealing the housing 1 and preventing dust from entering the interior of the housing 1 when the equipment is not in use. In addition, the side wall of the housing 1 is provided with a retaining ring 2, which can position the baffle 8 and help maintain the accuracy of the fit between the baffle 8 and the side wall of the housing 1.

[0040] The side wall of the housing 1 is provided with two symmetrically distributed stabilizing frames 6. Both stabilizing frames 6 are fixed to the housing 1 by the first bolt. Two symmetrically distributed positioning blocks 17 are fixedly installed at the bottom of each of the two stabilizing frames 6. The side wall of the housing 1 is provided with positioning grooves that match the positioning blocks 17 on the same side. When the operator places the stabilizing frame 6 on the side wall of the housing 1, the positioning blocks 17 at the bottom of the stabilizing frame 6 engage with the positioning grooves on the side wall of the housing 1, which serves to position the stabilizing frame 6 and facilitate subsequent fixing by the first bolt. The rotating rod 7 passes through the stabilizing frame 6 on the same side. The stabilizing frame 6 can support and stabilize the rotating rod 7, which helps to maintain the stability of the rotating rod 7 when it rotates.

[0041] Both support blocks 3 are fixedly installed at their bottom ends. The bottom plate 4 has a limiting groove that matches the limiting block. When the assembled shell 1 and the bottom plate 4 are installed, the workers will engage the limiting block installed at the bottom of the support block 3 with the limiting groove at the top of the bottom plate 4 to position the shell 1. Then, the support block 3 and the bottom plate 4 are fixed by fasteners in the prior art.

[0042] The inner wall of the housing 1 is lined with sound-absorbing cotton. Each of the two protective nets 11 has two symmetrically distributed locking blocks on its side walls. The housing 1 has locking slots on both sides that match the locking blocks on the same side. The locking blocks and the housing 1 are fixed together by a second bolt. The housing 1 is lined with sound-absorbing cotton inside, which can absorb noise. The protective nets 11 and the housing 1 are positioned by locking blocks and locking slots, and then fixed together by a second bolt. The combination of locking blocks, locking slots and second bolts facilitates subsequent disassembly and maintenance.

[0043] The implementation principle of this utility model embodiment is as follows: When the equipment is in use, the staff assembles the various parts and fixes the base 5 to the mounting point with fasteners of the prior art. The housing 1 is equipped with a fan, which can play a role in ventilation by running the fan. When the fan runs, it may generate vibration. A shock-absorbing component is provided between the base plate 4 and the base 5 to counteract the vibration force generated when the fan runs, which can play a role in shock absorption and buffering, which is conducive to maintaining the use effect of the equipment. When the base 5 is equipped with a stabilizing rod, the stabilizing rod slides through the base plate 4. When the equipment vibrates, the base plate 4 can move slightly up and down on the side wall of the stabilizing rod. The stabilizing rod can play a role in limiting the stabilizing of the base plate 4, which is conducive to maintaining the stability of the rise and fall of the base plate 4 and the top structure. The housing 1 is equipped with a protective net 11 on both sides, which can play a role in protecting the internal structure of the housing 1. The housing 1 is also equipped with a shielding component on both sides, which can play a role in sealing the sides of the housing 1, which helps to prevent dust from entering the interior of the housing 1 when the equipment is not in use.

[0044] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An explosion-proof axial flow fan, characterized by: The utility model provides an air purifier, including the casing (1), the casing (1) inside is equipped with fan, the casing (1) both sides are equipped with protective net (11), the casing (1) side wall fixed mounting is with two symmetrical distribution's support block (3), the casing (1) below is equipped with bottom plate (4), two support block (3) bottom and bottom plate (4) top fixed connection, bottom plate (4) below is equipped with base (5), the base (5) top fixed mounting is with four symmetrical distribution's steady pole, steady pole top all slidingly passes through bottom plate (4), bottom plate (4) and base (5) between be equipped with damping component, the casing (1) both sides are equipped with shielding component.

2. The explosion-proof axial flow fan according to claim 1, characterized in that: The damping component includes four shock absorbers (14) provided on the top end of the base (5), the telescopic shaft end of the shock absorber (14) is fixedly connected with the bottom end of the bottom plate (4), and the telescopic shaft side wall of the shock absorber (14) is sleeved with a second spring (13).

3. The explosion-proof axial flow fan according to claim 1, characterized in that: The shielding component includes a blocking ring (2) fixedly installed on both sides of the casing (1), both sides of the casing (1) are provided with a baffle (8), both sides of the baffle (8) are fixedly installed with a connecting plate (10), and the side of the casing (1) away from the bottom plate (4) is fixedly installed with a double-shaft motor (9). The output shaft end of the double-shaft motor (9) is fixedly installed with a rotating rod (7), one end of the rotating rod (7) opposite to the other end is fixedly connected with the side of the connecting plate (10) opposite to the other side, and the inner side of the blocking ring (2) is provided with a groove matched with the baffle (8) on the same side.

4. The explosion-proof axial flow fan according to claim 3, characterized in that: The side wall of the casing (1) is provided with two symmetrical steady frames (6) fixedly connected with the casing (1) through first bolts, and the bottom end of the steady frame (6) is fixedly installed with two symmetrical positioning blocks (17). The side wall of the casing (1) is provided with a positioning groove matched with the positioning block (17) on the same side.

5. The explosion-proof axial flow fan according to claim 1, characterized in that: The bottom plate (4) and the base (5) are provided with four symmetrical first springs (12), and the two ends of the first spring (12) are fixedly installed with a mounting disc (15). The side of the mounting disc (15) away from the first spring (12) on the same side is fixedly installed with an insertion block (16), and the bottom end of the bottom plate (4) and the top end of the base (5) are provided with an insertion groove matched with the insertion block (16) on the same side. The side wall of the insertion block (16) is sleeved with an anti-skid pad.

6. The explosion-proof axial flow fan according to claim 1, characterized in that: The bottom end of the support block (3) is fixedly installed with a limiting block, and the top end of the bottom plate (4) is provided with a limiting groove matched with the limiting block.

7. The explosion-proof axial flow fan according to claim 1, characterized in that: The inner wall of the casing (1) is provided with sound-absorbing cotton, the side wall of the protective net (11) is provided with two symmetrical clamping blocks, the two sides of the casing (1) are provided with clamping grooves matched with the clamping blocks on the same side, and the clamping block and the casing (1) are fixedly connected through second bolts.

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