CN218439842U - Stable axial-flow type ventilator - Google Patents

Abstract

The utility model discloses a stable form axial-flow fan, including casing, impeller and driving motor etc, two L type framves of chassis bottom fixed mounting, the bottom of L type frame is provided with the counterweight plate, two rectangular channels have been seted up to the counterweight plate top surface to be fixed with spacing on the rectangular channel, L type frame joint is between two spacing, the dwang is installed to the rectangular channel internal rotation, the dwang top is connected with the bar pole, the open groove has all been seted up on the L type frame, the bar groove has been seted up on the open groove lateral wall, the both ends and the bar groove sliding connection of bar pole. The utility model discloses a set up the holistic weight of counter weight plate increase ventilation blower, improve its stability when the operation, be connected with the joint in bar groove through the bar pole to and the kelly is connected spacing and the location between the L type frame, realize the detachable connection between ventilation blower main part and the counter weight plate, the staff of being convenient for carries out operations such as dismouting and maintenance to the ventilation blower main part.

Description

Stable axial-flow type ventilator

Technical Field

The utility model relates to a ventilation blower technical field especially relates to a stable form axial-flow fan.

Background

The axial-flow ventilator is a ventilator which forces gas to flow along the axial direction by means of the thrust action of an impeller, and is usually composed of a current collector, an impeller, a casing, a machine shaft and other parts.

In the operation process of the axial-flow type ventilator, the impeller enables the airflow to obtain energy, meanwhile, the acting force between the airflow and other parts enables the installation structure between the axial-flow type ventilator and the ground to be easy to loosen, so that the axial-flow type ventilator generates large noise in the operation process, even the position and the angle of the axial-flow type ventilator are easy to change, and the use stability of the axial-flow type ventilator is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a stable axial-flow type ventilator.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stable axial-flow type ventilator comprises a cylindrical casing and an impeller installed in the casing, wherein a driving motor is fixedly installed in the casing through a connecting frame, the tail end of an output shaft of the driving motor is fixedly connected with the impeller in a coaxial mode, two L-shaped frames which are symmetrically arranged are fixedly installed at the bottom of the casing, a counterweight plate is connected to the bottoms of the two L-shaped frames, two rectangular grooves which are symmetrically arranged are formed in the top surface of the counterweight plate, an L-shaped moving plate is installed in each rectangular groove in a sliding mode, a transverse plate at the bottom end of the L-shaped moving plate is connected with the bottom surface of each rectangular groove in a sliding mode, a square through hole is formed in the transverse plate at the bottom end of the L-shaped moving plate, a rotating rod is installed in each rectangular groove of the counterweight plate in a rotating mode, and penetrates through the square through hole at the bottom end of the L-shaped moving plate, perpendicular fixed mounting has the driving lever on the lateral wall of dwang lower extreme, the driving lever is located inside square through hole, and the driving lever is kept away from the one end of dwang is laminated with square through hole's inner wall mutually, dwang top fixedly connected with bar, the diaphragm of two L type frame bottoms sets up in opposite directions, and has all seted up the opening groove on the diaphragm of L type frame bottom, and the bar groove has been seted up to the symmetry on the lateral wall of opening groove both sides, the both ends of bar extend to the bar inslot portion of corresponding opening groove both sides respectively, and all with bar groove sliding connection, the counterweight plate top in the equal fixed mounting in rectangular channel top has spacing, and two spacing symmetries set up, and two spacing are located between the riser on two L type movable plate tops, two L type frame joint is between two spacing.

Furthermore, the two ends of the bar-shaped rod respectively slide to penetrate through limiting rods, the top ends of the limiting rods extend to the upper side of the bar-shaped rod, a pressing rod is fixedly mounted on the upper side of the bar-shaped rod, two springs I are arranged between the two limiting rods below the pressing rod, the two ends of each spring I respectively support the bottom surface of the pressing rod and the top surface of the bar-shaped rod, and the bottom ends of the limiting rods are movably inserted into the tops of the balance weight plates.

Further, a torsion spring is fixedly mounted on the annular side wall of the lower end of the rotating rod, and the outer end of the torsion spring is fixedly connected with the bottom of the rectangular groove of the counterweight plate.

Furthermore, a clamping rod is embedded in the side wall, close to the L-shaped frame, of the limiting strip, a clamping groove corresponding to the clamping rod in position is formed in the side wall, close to the limiting strip, of the L-shaped frame, and the clamping rod is connected with the clamping groove in a sliding mode.

Furthermore, a sliding rod penetrates through the side wall, away from the L-shaped frame, of the limiting strip, one end of the sliding rod penetrates through the side wall of the limiting strip and is fixedly connected with the clamping rod, the other end of the sliding rod is fixedly connected with the L-shaped moving plate, a second spring is sleeved on the periphery of the sliding rod, and the two ends of the second spring abut against the limiting strip and the L-shaped moving plate respectively.

Furthermore, a through groove is further formed in the transverse plate at the bottom end of the L-shaped moving plate, a fixed block is connected in the through groove in a sliding mode, and the bottom end of the fixed block is fixedly connected with the bottom wall of the rectangular groove of the counterweight plate.

Furthermore, a third spring is arranged in the through groove, one end of the third spring is fixedly connected with the side wall of the fixed block, and the other end of the third spring is fixedly connected with the side wall of the through groove.

The utility model has the advantages that:

1. increase the holistic weight of axial-flow fan through setting up the weight plate, improve its stability when the operation, be connected through the joint in bar pole and bar groove to and the kelly is connected spacing and the location between the L type frame, realize the detachable connection between fan main part and the weight plate, the staff of being convenient for carries out operations such as dismouting and maintenance to the fan main part.

2. Can drive the bar pole through rotating the depression bar and rotate to get into the bar inslot portion, through setting up spring one, when the bar pole rotates the suitable position to the bar inslot, can make depression bar and gag lever post downstream automatically, make the gag lever post insert the weight plate top, lock the position of bar pole, lock the relation of being connected between ventilation blower main part and the weight plate simultaneously. Rotate the depression bar and drive bar pivoted in-process, dwang and the driving lever of lower extreme can rotate along with it in step, and then along with the driving lever is rotating the in-process, extrude the square through-hole inner wall of L type movable plate, also can promote L type movable plate and slide in the rectangular channel, L type movable plate drives slide bar and kelly and removes in step, make inside the draw-in groove of kelly entering L type frame lateral wall, further lock the relation of connection between ventilation blower main part and the weight plate, and then improved the stability of ventilation blower main part installation.

3. In the utility model, the sliding direction of the L-shaped movable plate in the rectangular groove is further limited by arranging the fixed block, the movement of the clamping rod in the clamping groove is more accurately controlled, and the stability of the connection between the ventilator main body and the counterweight plate is further improved; additionally, the utility model discloses a, through setting up torsional spring, spring two and spring three, when the ventilation blower main part is pulled down, the dwang of being convenient for and the quick automatic re-setting of kelly have made things convenient for the staff to carry out operations such as dismouting and maintenance to the ventilation blower main part more.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic sectional view of a part of the structure of the present invention;

FIG. 3 is a schematic view of an assembly structure of the L-shaped frame of the present invention;

FIG. 4 is an enlarged view of a portion of the structure at A in FIG. 3;

FIG. 5 is a schematic view of an assembly structure of the middle latch rod of the present invention;

fig. 6 is an enlarged schematic view of a part of the structure at B in fig. 5.

In the figure: 1. a housing; 2. an impeller; 3. a drive motor; 4. an L-shaped frame; 5. a limiting strip; 6. a weight plate; 7. a strip-shaped groove; 8. a bar-shaped rod; 9. rotating the rod; 10. a deflector rod; 11. an L-shaped moving plate; 12. a pressure lever; 13. a limiting rod; 14. a first spring; 15. a torsion spring; 16. a slide bar; 17. a second spring; 18. a clamping rod; 19. a through groove; 20. a fixed block; 21. and a third spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-6, a stable axial flow fan comprises a cylindrical casing 1 and an impeller 2 installed in the casing 1, wherein a driving motor 3 is fixedly installed in the casing 1 through a connecting frame, and the tail end of an output shaft of the driving motor 3 is coaxially and fixedly connected with the impeller 2. The driving motor 3 drives the impeller 2 to rotate, and further pushes the gas to flow.

The bottom of the casing 1 is fixedly provided with two L-shaped frames 4 which are symmetrically arranged through bolts, the bottom parts of the two L-shaped frames 4 are clamped with a counterweight plate 6, and the design of the counterweight plate 6 improves the whole weight of the axial-flow fan, so that the axial-flow fan is more stable in working. The transverse plates at the bottom ends of the two L-shaped frames 4 are oppositely arranged, the transverse plates at the bottom ends of the L-shaped frames 4 are provided with notches, and the side walls at the two sides of each notch are symmetrically provided with strip-shaped grooves 7.

Two rectangular channels that the symmetry set up are seted up to the top surface of counterweight plate 6, equal slidable mounting has L type movable plate 11 in the rectangular channel, the diaphragm of L type movable plate 11 bottom and the bottom surface sliding connection of rectangular channel, and seted up square through-hole on the diaphragm of L type movable plate 11 bottom, all install dwang 9 through the bearing rotation in the rectangular channel of counterweight plate 6, dwang 9 runs through the square through-hole of L type movable plate 11 bottom, perpendicular fixed mounting has driving lever 10 on the lateral wall of dwang 9 lower extreme, driving lever 10 is located inside the square through-hole, and the one end that dwang 9 was kept away from to driving lever 10 is laminated with the inner wall of square through-hole mutually, dwang 9 rotates in-process and drives driving lever 10 and rotates, driving lever 10 extrudes the inner wall of square through-hole, and then can promote L type movable plate 11 and slide in the rectangular channel. Dwang 9 top fixed weld has bar pole 8, and bar pole 8's both ends extend to the bar inslot 7 insides of corresponding opening groove both sides respectively, and all with bar inslot 7 sliding connection. When bar 8 rotated, its both ends ability joint was in bar groove 7, was convenient for with 4 joints of L type frame on 6 tops of counter weight plate.

The top of the counterweight plate 6 and the upper part of the rectangular groove are fixedly welded with limiting strips 5, the two limiting strips 5 are symmetrically arranged, the two limiting strips 5 are positioned between the vertical plates at the top ends of the two L-shaped moving plates 11, and the two L-shaped frames 4 are clamped between the two limiting strips 5. A clamping rod 18 is embedded on the side wall of the limiting strip 5 close to the L-shaped frame 4, a clamping groove corresponding to the position of the clamping rod 18 is formed in the side wall of the L-shaped frame 4 close to the limiting strip 5, and the clamping rod 18 is connected with the clamping groove in a sliding mode. The clamping rod 18 is connected in the clamping groove, the L-shaped frame 4 can be clamped and fixed in an auxiliary mode, and the stability of connection between the axial-flow fan and the counterweight plate is further improved. The side wall of the limiting strip 5, which is far away from the L-shaped frame 4, is provided with a sliding rod 16 in a penetrating manner, one end of the sliding rod 16 penetrates through the side wall of the limiting strip 5 and is fixedly connected with a clamping rod 18, and the other end of the sliding rod 16 is fixedly connected with the L-shaped moving plate 11.

Two ends of the bar-shaped rod 8 respectively slide to penetrate through limiting rods 13, the top ends of the two limiting rods 13 extend to the upper side of the bar-shaped rod 8, a pressing rod 12 is fixedly mounted, two springs 14 are arranged below the pressing rod 12 and between the two limiting rods 13, two ends of each spring 14 are respectively welded and fixed with the bottom surface of the pressing rod 12 and the top surface of the bar-shaped rod 8, and the bottom ends of the limiting rods 13 are movably inserted into the top of the counterweight plate 6. After depression bar 12 and bar 8 rotated suitable position, spring 14 can promote the automatic downstream of gag lever post 13, makes gag lever post 13 peg graft in the top of counterweight 6, can lock the position of bar 8 through gag lever post 13, avoids bar 8 to break away from bar 7 insidely.

In this embodiment, the annular side wall of dwang 9 lower extreme goes up fixed welding and has torsional spring 15, and the outer end of torsional spring 15 and the rectangular channel bottom welded fastening of counterweight plate 6. Torsional spring 15 can rotate dwang 9 and reset, and then the staff of being convenient for carries out operations such as dismouting and maintenance to the ventilation blower main part.

In this embodiment, the sliding rod 16 is sleeved with a second spring 17, and two ends of the second spring 17 are respectively welded and fixed to the limiting bar 5 and the L-shaped moving plate 11. The second spring 17 can push the sliding rod 16 and the clamping rod 18 to move and reset, so that the clamping rod 18 is separated from the clamping groove, and the ventilator main body can be conveniently dismounted, mounted and maintained by workers.

In this embodiment, a through groove 19 is further formed in the transverse plate at the bottom end of the L-shaped moving plate 11, a fixing block 20 is connected in the through groove 19 in a sliding manner, the bottom end of the fixing block 20 is fixedly connected with the bottom wall of the rectangular groove of the weight plate 6, and the sliding of the L-shaped moving plate 11 in the rectangular groove is limited by the fixing block 20. A third spring 21 is arranged in the through groove 19, one end of the third spring 21 is fixedly connected with the side wall of the fixed block 20, and the other end of the third spring 21 is fixedly connected with the side wall of the through groove 19. The design of the third spring 21 is convenient for pushing the L-shaped moving plate 11, the sliding rod 16 and the clamping rod 18 to move and reset, the clamping rod 18 is convenient to separate from the clamping groove, and then the operation of disassembling, assembling and overhauling the main body of the ventilator by workers is facilitated.

The working principle is as follows: the utility model increases the whole weight of the axial-flow type ventilator by arranging the counterweight plate 6, and improves the stability of the axial-flow type ventilator during operation; be connected through the joint of bar pole 8 with bar groove 7 to and the kelly 18 is connected spacing 5 and the location between the L type frame 4, realize that the joint between ventilation blower main part and the counterweight plate 6 is connected, the staff of being convenient for carries out operations such as dismouting and maintenance to the ventilation blower main part.

With 4 joints of L type frame on 6 tops of weight plate, make L type frame 4 laminate with two spacing 5 respectively mutually, make the kelly 18 align with the draw-in groove simultaneously, rotate depression bar 12 after that, drive bar 8 and rotate in step, and then make 8 both ends of bar rotate and get into bar inslot 7 insidely, bar 8 rotates to suitable position after, gag lever post 13 just under the effect of spring 14, insert 6 tops of weight plate, and then lock the position of bar 8, and install 4 joints of L type frame on weight plate 6. In the rotating process of the bar-shaped rod 8, the rotating rod 9 and a shifting lever 10 at the lower end of the rotating rod are driven to rotate synchronously, the shifting lever 10 extrudes the inner wall of a square through hole of the L-shaped moving plate 11 in the rotating process, the L-shaped moving plate 11 is further pushed to slide in a rectangular groove, the L-shaped moving plate 11 drives the sliding rod 16 and the clamping rod 18 to move synchronously, the clamping rod 18 enters the clamping groove of the side wall of the L-shaped frame 4, the connecting relation between the ventilator body and the counterweight plate 6 is further locked, and the stability of the installation of the ventilator body is further improved.

When the ventilator main body is dismounted, the pressing rod 12 needs to be lifted, then the pressing rod 12 and the strip-shaped rod 8 rotate, and then under the action of the second spring 17, the third spring 21 and the elastic force of the torsion spring 15, the components such as the L-shaped moving plate 11 and the clamping rod 18 can be automatically reset, so that the ventilator main body can be dismounted, mounted and repaired by workers more conveniently.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components.

Claims (7)

1. A stabilized axial flow fan, comprising: the automatic lifting device comprises a cylindrical shell (1) and an impeller (2) installed in the shell (1), wherein a driving motor (3) is fixedly installed in the shell (1) through a connecting frame, the tail end of an output shaft of the driving motor (3) is coaxially and fixedly connected with the impeller (2), two L-shaped frames (4) symmetrically arranged are fixedly installed at the bottom of the shell (1), two weight plates (6) are connected to the bottom of the L-shaped frames (4), two rectangular grooves symmetrically arranged are formed in the top surface of each weight plate (6), L-shaped movable plates (11) are uniformly and slidably installed in the rectangular grooves, transverse plates at the bottom ends of the L-shaped movable plates (11) are slidably connected with the bottom surfaces of the rectangular grooves, square through holes are formed in the transverse plates at the bottom ends of the L-shaped movable plates (11), rotating rods (9) penetrate through the square through holes at the bottoms of the L-shaped movable plates (11), a lifting rod (10) is vertically and fixedly installed on the side walls of the lower end of the L-shaped movable plates (11), the lifting rod (10) is positioned in the square through holes, one end of each lifting rod (9) is far away from one end of each square through hole, and is connected with a strip-shaped frame (4), and the top end of each lifting rod (4) and each lifting rod (8) is connected with the corresponding transverse plate (4), strip groove (7) have been seted up to the symmetry on the lateral wall of open groove both sides, inside bar groove (7) of corresponding open groove both sides were extended to respectively at the both ends of bar pole (8), and all with bar groove (7) sliding connection, counterweight plate (6) top in the equal fixed mounting in rectangular channel top has spacing (5), two spacing (5) symmetry settings, and two spacing (5) are located between the riser on two L type movable plates (11) tops, two L type frame (4) joint is between two spacing (5).

2. A stabilized axial flow fan according to claim 1 wherein: two ends of the bar-shaped rod (8) respectively slide to penetrate through a limiting rod (13), two the top end of the limiting rod (13) extends to the upper side of the bar-shaped rod (8) and is fixedly provided with a pressing rod (12), two springs (14) are arranged between the two limiting rods (13) below the pressing rod (12), two ends of the springs (14) respectively support the bottom surface of the pressing rod (12) and the top surface of the bar-shaped rod (8), and the bottom end of the limiting rod (13) is movably inserted into the top of the counterweight plate (6).

3. A stabilized axial flow fan according to claim 1 wherein: and a torsion spring (15) is fixedly mounted on the annular side wall at the lower end of the rotating rod (9), and the outer end of the torsion spring (15) is fixedly connected with the bottom of the rectangular groove of the counterweight plate (6).

4. A stabilized axial flow fan according to claim 1 wherein: the side wall of the limiting strip (5) close to the L-shaped frame (4) is embedded with a clamping rod (18), the side wall of the L-shaped frame (4) close to the limiting strip (5) is provided with a clamping groove corresponding to the clamping rod (18), and the clamping rod (18) is connected with the clamping groove in a sliding mode.

5. A stabilized axial flow fan according to claim 4 wherein: wear to be equipped with slide bar (16) on the lateral wall of L type frame (4) is kept away from in spacing (5), the lateral wall of spacing (5) is run through to the one end of slide bar (16), and with kelly (18) fixed connection, the other end of slide bar (16) with L type movable plate (11) fixed connection, the periphery cover of slide bar (16) is equipped with spring two (17), and supports respectively at the both ends of spring two (17) and push against spacing (5), L type movable plate (11).

6. A stabilized axial flow fan according to claim 5, wherein: logical groove (19) have still been seted up on the diaphragm of L type movable plate (11) bottom, it has fixed block (20) to lead to sliding connection in groove (19), the bottom of fixed block (20) with the rectangular channel diapire fixed connection of counterweight plate (6).

7. A stabilized axial flow fan according to claim 6, wherein: a third spring (21) is arranged in the through groove (19), one end of the third spring (21) is fixedly connected with the side wall of the fixing block (20), and the other end of the third spring (21) is fixedly connected with the side wall of the through groove (19).

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