CN215214034U - Fan for subway tunnel - Google Patents

Abstract

The utility model discloses a fan for subway tunnels, which comprises a cylindrical shell and a filter screen connected to the air inlet end of the shell, wherein the filter screen is detachably connected with the shell through a fixed structure, the fixed structure comprises an annular connecting sleeve and a supporting ring fixedly sleeved outside the filter screen, one end surface of the annular connecting sleeve is provided with an annular connecting groove along the circumferential direction, the annular connecting groove is sleeved outside one end of the supporting ring and the shell, and the supporting ring and/or the shell are in threaded connection with the inner wall of the annular connecting groove; compared with the prior art, the utility model, open the annular adapter sleeve that has the annular spread groove through a terminal surface and come to press from both sides the cover in the support ring and the shell one end outside, support ring and/or shell and annular spread groove inner wall threaded connection simultaneously come to the filter screen and stabilize and can dismantle the mode of connection and connect in the air inlet end of shell to in dismantle or install the filter screen, then conveniently maintain the fan.

Description

Fan for subway tunnel

Technical Field

The utility model relates to a fan technical field, concretely relates to subway is fan for tunnel.

Background

The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy.

Fans are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and for ventilation and draught of boilers and industrial furnaces and kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grain, wind tunnel wind source and air cushion boat inflating and propelling.

The current fan that is applied to in tunnel includes the tube-shape casing and sets up motor and the impeller in the casing, and the fixed welding of air inlet end at the casing has the filter screen, but when the filter screen damages or when motor or impeller take place to damage, leads to the filter screen to dismantle inconveniently because of the connected mode of filter screen and casing to influence the maintenance efficiency of fan.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model aims to provide a subway is fan for tunnel to solve prior art, adopt welded connected mode to lead to the filter screen to dismantle inconvenient because of filter screen and casing, thereby influence the maintenance efficiency's of fan problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a fan for subway tunnel, includes the tube-shape shell and connects the filter screen in the air inlet end of shell, the filter screen passes through fixed knot to be constructed and can dismantle with the shell and be connected, and fixed knot constructs including annular adapter sleeve and fixed cover and establishes the support ring in the filter screen outside, and annular adapter sleeve terminal surface is opened along its circumferential direction has the annular spread groove, and the annular spread groove presss from both sides the cover in support ring and shell one end outside, and support ring and/or shell and annular spread groove inner wall threaded connection.

Compared with the prior art, the utility model discloses following beneficial effect has:

the fan for the local iron tunnel is opened the annular adapter sleeve that has annular spread groove through a terminal surface and is pressed from both sides the cover in support ring and shell one end outside, and support ring and/or shell and annular spread groove inner wall threaded connection simultaneously will the filter screen stabilize and can dismantle the mode of connection and connect in the air inlet end of shell to in dismantle or install the filter screen, then conveniently maintain the fan.

Drawings

Fig. 1 is a front cross-sectional view of an embodiment of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Reference numerals in the drawings of the specification include: the device comprises a shell 1, a filter screen 2, a motor 3, an impeller 4, an annular connecting sleeve 5, a supporting ring 6, a locking groove 7, a locking rod 8, a supporting spring 9, a top block 10, a supporting block 11, a damping spring 12 and a damping block 13.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments:

as shown in fig. 1, an embodiment of the present invention provides a blower for a subway tunnel, including a tubular housing 1 and a filter screen 2 connected to an air inlet end of the housing 1, wherein a motor 3 is arranged at the middle part in the housing 1, support rods fixedly connected to an inner wall of the housing 1 are circumferentially arranged outside the motor 3, an impeller 4 rotatably arranged in the housing 1 is connected to a rotating shaft at the head end of the motor 3, and the impeller 4 is located between the motor 3 and the filter screen 2;

filter screen 2 comes to dismantle with shell 1 through fixed knot structure and is connected, and fixed knot structure includes that annular adapter sleeve 5 and fixed cover establish the support ring 6 in the filter screen 2 outside, and annular adapter sleeve 5 terminal surface is opened along its circumferential direction has annular spread groove, and annular spread groove clamp sleeve is in the support ring 6 and the 1 one end outside of shell, and support ring 6 and/or shell 1 and annular spread groove inner wall threaded connection.

Local fan for iron tunnel opens annular adapter sleeve 5 that has annular spread groove through a terminal surface and presss from both sides the cover in the support ring 6 and the 1 one end outside of shell, and support ring 6 and/or shell 1 and annular spread groove inner wall threaded connection simultaneously will filter screen 2 stabilize and can dismantle the mode of connection and connect in the air inlet end of shell 1 to in dismantle or install filter screen 2, then conveniently maintain the fan.

As shown in fig. 2, according to the utility model discloses a fan for subway tunnel, in order to further improve the stability of filter screen 2 installation, still include that the circumference distributes between support ring 6 and shell 1 has a plurality of locking structures of arranging in the annular spread groove and rather than offsetting, every locking structure all includes the locking groove 7 of seting up on the outer wall of support ring 6, set up on the outer wall of shell 1 with locking groove 7 complex locking hole and slide and wear to establish the locking pole 8 between locking groove 7 and locking hole, the one end that locking groove 7 was kept away from to locking pole 8 offsets with annular spread groove inner wall.

Through the locking hole and the locking pole 8 cooperation of seting up on the locking groove 7, the shell 1 of seting up on support ring 6, specifically be the notch and the locking hole intercommunication in locking groove 7, insert in locking groove 7 after the locking hole is passed to the one end of locking pole 8, the other end and the annular spread groove inner wall of locking pole 8 offset to further consolidate being connected between support ring 6 and the shell 1, in order to reach the fixed effect that improves filter screen 2.

Rotate annular adapter sleeve 5 and come to break away from the connection with support ring 6 and shell 1, later all take out in the locking hole that corresponds locking pole 8, can make support ring 6 and shell 1 break away from the connection, then can take off filter screen 2 from shell 1.

As shown in fig. 2, according to another embodiment of the present invention, the blower for subway tunnel further includes a top block 10 connected to the bottom of the locking groove 7 through a support spring 9 and sliding inside the locking groove, wherein the top block 10 abuts against one end of the locking rod 8.

Through the cooperation of supporting spring 9 and kicking block 10, be convenient for after annular adapter sleeve 5 and supporting ring 6 and shell 1 break away from the connection, supporting spring 9 extension makes kicking block 10 drive locking pole 8 remove outside the locking hole, the staff of being convenient for take locking pole 8 come quick with supporting ring 6 and shell 1 break away from the connection.

As shown in fig. 2, according to another embodiment of the present invention, the blower for subway tunnel further includes an adjusting inclined plane formed on one side of the bottom of the annular connecting groove, which is close to the bottom of the annular connecting groove, of the end of the locking rod 8 abutting against the inner wall of the annular connecting groove.

When annular adapter sleeve 5 is connected with support ring 6 and shell 1, adjust the inclined plane and slide with annular adapter sleeve 5 and offset and make the quick downthehole removal to the locking of locking pole 8, back locking pole 8 inlays to be established between locking hole and locking groove 7 and offset with the annular spread groove inner wall of annular adapter sleeve 5, comes further locking fixed to support ring 6 and shell 1.

As shown in fig. 2, according to the utility model discloses a fan for subway tunnel, wherein the inboard middle part of air-out end of shell 1 is provided with supporting shoe 11, and supporting shoe 11 links to each other with shell 1 inner wall is fixed through at least one connecting rod, and supporting shoe 11 is connected with the snubber block 13 that offsets with 3 outer walls of motor through damping spring 12.

The supporting block 11 is fixed through a plurality of connecting rods, the supporting block 11 is used for installing the damping spring 12 and the damping block 13, and the connecting rods in the embodiment are circumferentially distributed on the outer side of the supporting block 11; when the motor 3 drives the impeller 4 to run, the vibration of the motor 3 in the running process is damped through the matching of the damping block 13 and the damping spring 12, so that the fan is more stable in the running process after being installed in a tunnel.

Further, the damping block 13 and the supporting block 11 are both positioned on one side of the tail part of the motor 3, and the cross section area of the tail part of the motor 3 is larger than that of the damping block 13 and the supporting block 11. The damping block 13 and the supporting block 11 are prevented from blocking the wind guided into the casing 1 by the impeller 4, so that the wind guided into the casing 1 can be effectively discharged from the air outlet of the casing.

As shown in fig. 2, according to the utility model discloses a fan for subway tunnel, wherein the air-out end of shell 1 is loudspeaker form for from even dispersion all around of shell 1 interior exhaust wind in the tunnel, improve the wind distribution effect of this fan in the tunnel.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (7)

1. The utility model provides a fan for subway tunnel, includes the tube-shape shell and connects the filter screen at the air inlet end of shell, its characterized in that, the filter screen comes to dismantle with the shell through fixed knot structure and is connected, and fixed knot constructs including annular adapter sleeve and fixed cover and establishes the support ring in the filter screen outside, and annular adapter sleeve terminal surface is opened along its circumferential direction has annular spread groove, and annular spread groove presss from both sides the cover in support ring and shell one end outside, and support ring and/or shell and annular spread groove inner wall threaded connection.

2. The fan for the subway tunnel according to claim 1, wherein: the locking structure that a plurality of annular spread grooves of arranging in and rather than offsetting is distributed to circumference between support ring and the shell, every locking structure all include the locking groove of seting up on the support ring outer wall, set up on the shell outer wall with locking groove complex locking hole and slide and wear to establish the locking pole between locking groove and locking hole, the one end and the annular spread groove inner wall counterbalance of locking pole keeping away from the locking groove.

3. The fan for the subway tunnel according to claim 2, wherein: the bottom in the locking groove is connected with a top block which slides in the locking groove through a supporting spring, and the top block is abutted against one end of the locking rod.

4. The fan for the subway tunnel according to claim 2 or 3, wherein: one side that the one end that locking pole and annular spread groove inner wall offseted is close to annular spread groove tank bottom is opened there is the regulation inclined plane.

5. The fan for the subway tunnel according to claim 1, wherein: the air-out end of the shell is provided with a supporting block in the middle, the supporting block is fixedly connected with the inner wall of the shell through at least one connecting rod, and the supporting block is connected with a damping block which is abutted against the outer wall of the motor through a damping spring.

6. The blower according to claim 5, wherein: the shock absorption block and the supporting block are both located on one side of the tail of the motor, and the cross section area of the tail of the motor is larger than that of the shock absorption block and the supporting block.

7. The fan for the subway tunnel according to claim 1, wherein: the air outlet end of the shell is trumpet-shaped.

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