CN212744420U - Improved jet fan for tunnel - Google Patents
Improved jet fan for tunnel Download PDFInfo
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- CN212744420U CN212744420U CN202021407634.6U CN202021407634U CN212744420U CN 212744420 U CN212744420 U CN 212744420U CN 202021407634 U CN202021407634 U CN 202021407634U CN 212744420 U CN212744420 U CN 212744420U
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- air duct
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Abstract
The utility model relates to the technical field of fans, and discloses a jet fan for a tunnel with improved structure, which comprises a supporting bottom plate fixed on the top wall of the tunnel, wherein two sliding grooves extending in the left and right directions are formed on the supporting bottom plate, a plurality of sliding frames arranged left and right are connected on the two sliding grooves in a sliding manner, a short air duct is fixed at the lower end of each sliding frame, and the right end of the left short air duct is inserted and sleeved at the left end of the adjacent right short air duct; the sliding frame at the leftmost side and the sliding frame at the rightmost side are respectively and fixedly connected with the supporting bottom plate through corresponding screws; a motor is fixed in one of the middle short wind cylinders, and an impeller is connected on the motor. The jet flow fan is characterized in that a plurality of movable short air cylinders are linearly inserted to form a long air cylinder, the connection between any two short air cylinders can be disconnected, and the jet flow fan is convenient to mount in the earlier stage and maintain and repair the jet flow fan in the later stage without being detached.
Description
The technical field is as follows:
the utility model relates to a fan technical field, concretely relates to jet fan for tunnel of institutional advancement.
Background art:
in a subway tunnel, in order to discharge waste gases such as carbon dioxide and sulfur dioxide in the tunnel and introduce external fresh air, a plurality of jet flow discharge fans are generally required to be sequentially installed on the top wall of the tunnel for ventilation. The main components (motor, impeller, etc.) of the jet fan are generally arranged inside the air duct. However, the air duct of the existing jet fan is generally long in length, and components arranged inside the air duct are troublesome in the aspects of early installation and later maintenance; simultaneously jet fan and tunnel roof fixed connection and jet fan self weight are great, dismantle the jet fan from the tunnel roof and get off comparatively inconveniently when needing the maintenance.
The utility model has the following contents:
the utility model aims at overcoming prior art's not enough, provide a jet fan for tunnel of institutional advancement, it forms a long dryer through the linear grafting of a plurality of portable short dryer, and can break off the connection between two arbitrary short dryer, makes things convenient for the earlier stage installation of jet fan and the later maintenance work of not tearing open the lower fan.
The utility model provides a technical problem's scheme is:
a kind of structure improved jet fan for tunnel, including fixing the supporting baseplate on the roof of the tunnel, the said supporting baseplate is formed with two sliding chutes extending in the left and right direction, sliding connect with multiple left and right carriage on two sliding chutes, the bottom end of each carriage is fixed with the short dryer, the right end of the short dryer on the left side is inserted and fitted on the left end of the short dryer on the right side adjacent to it;
the sliding frame at the leftmost side and the sliding frame at the rightmost side are respectively and fixedly connected with the supporting bottom plate through corresponding screws;
a motor is fixed in one of the middle short wind cylinders, and an impeller is connected on the motor.
The left end of the short air duct is formed with a step positioning hole, and the inner diameter of a large end hole of the step positioning hole is matched with the outer diameter of the right end of the short air duct.
The sliding frame comprises a connecting frame in an inverted U shape, two sliding blocks arranged in front and back are formed at the upper end of the connecting frame, and the sliding blocks are inserted and sleeved in the sliding grooves;
two groups of threaded holes which are arranged up and down are formed in the connecting frame; and a connecting plate is arranged between every two adjacent connecting frames, two ends of the connecting plate are respectively sleeved with a second screw, and the two second screws are respectively screwed in the corresponding threaded holes on the two adjacent connecting frames.
The supporting bottom plate is fixedly connected with the top wall of the tunnel through a plurality of rear bottom expanding anchor bolts.
A boss is fixed on the outer wall of the front end of the short air duct, and a second threaded hole is formed in the boss;
the front end of short dryer is equipped with the support bar, and the both ends of support bar respectively rotate and are connected with a knob, and the tip shaping that the knob is close to short dryer has the screw rod, and two screw rods spiro union are in the second threaded hole on the boss of two short dryer that correspond respectively.
2-3 short air ducts are clamped between the two short air ducts connected with the two knobs.
One end of the sliding groove is open, the other end of the sliding groove is not open, and a baffle is fixed at the open end of the sliding groove.
The utility model discloses an outstanding effect is:
compared with the prior art, it forms a long dryer through the linear grafting of a plurality of portable short dryer, and can break off the connection between two arbitrary short dryer, makes things convenient for the installation in earlier stage of efflux fan and does not dismantle the later maintenance repair work of fan.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 taken about A-A;
FIG. 3 is a cross-sectional view of FIG. 2 taken about B-B;
FIG. 4 is a cross-sectional view of FIG. 2 taken about C-C;
fig. 5 is a schematic view of a state during maintenance according to the present invention.
The specific implementation mode is as follows:
in an embodiment, as shown in fig. 1 to 4, a jet fan for a tunnel with an improved structure includes a support base plate 1 fixed on a top wall of the tunnel, two sliding grooves 11 extending in a left-right direction are formed on the support base plate 1, a plurality of sliding frames 2 arranged left and right are connected on the two sliding grooves 11 in a sliding manner, a short air duct 3 is fixed at a lower end of each sliding frame 2, and a right end of the short air duct 3 on the left side is inserted into a left end of the short air duct 3 on the right side adjacent to the short air duct 3 on the left side;
the sliding frame 2 at the leftmost side and the sliding frame 2 at the rightmost side are respectively fixedly connected with the supporting bottom plate 1 through corresponding screws 4;
a motor 51 is fixed in one of the short wind cylinders 3 in the middle, and an impeller 52 is connected on the motor 51.
Furthermore, a step positioning hole 31 is formed at the left end of the short air duct 3, and the inner diameter of the large end hole of the step positioning hole 31 is matched with the outer diameter of the right end of the short air duct 3.
Furthermore, the sliding frame 2 comprises a connecting frame 21 in an inverted U shape, two sliding blocks 22 arranged in front and back are formed at the upper end of the connecting frame 21, and the sliding blocks 22 are inserted and sleeved in the sliding grooves 11;
two groups of threaded holes 23 which are arranged up and down are formed in the connecting frame 21; a connecting plate 61 is arranged between two adjacent connecting frames 21, two ends of the connecting plate 61 are respectively sleeved with a second screw 62, and the two second screws 62 are respectively screwed in the corresponding threaded holes 23 on the two adjacent connecting frames 21.
Furthermore, the support floor 1 is fixedly connected to the tunnel roof via a plurality of rear-bellmouth anchor bolts 7.
Furthermore, a boss 81 is fixed on the outer wall of the front end of the short air duct 3, and a second threaded hole 82 is formed on the boss 81;
the front end of the short air duct 3 is provided with a support bar 83, two ends of the support bar 83 are respectively connected with a knob 84 in a rotating manner, the end part of the knob 84 close to the short air duct 3 is formed with a screw rod 841, and the two screw rods 841 are respectively screwed in the second threaded holes 82 on the bosses 81 of the two corresponding short air ducts 3.
Furthermore, 2-3 short air ducts 3 are sandwiched between two short air ducts 3 connected to the two knobs 84.
Furthermore, one end of the sliding groove 11 is open and the other end is not open, and the baffle 9 is fixed at the open end of the sliding groove 11.
The working principle is as follows: in the connection mode among the short air ducts 3, the right end of the short air duct 3 on the left side is inserted and sleeved in the step positioning hole 31 at the left end of the short air duct 3 on the right side adjacent to the short air duct 3 on the left side; then, a connecting plate 61 is connected between the sliding frames 2 fixedly connected with the two short air ducts 3 and is fastened through second screws, after all the short air ducts are connected, the long air duct synthesized by the plurality of short air ducts is moved to a corresponding position, and then the two short air ducts 3 on the most edges are fixedly connected with the supporting bottom plate 1 through screws 4;
when a certain part in the jet fan needs to be maintained, the second screws 62 on the sliding frame 2 on the corresponding air cylinders are disassembled, then the connecting plates 61 between the two corresponding short air cylinders are disassembled, and the supporting bars 83 and the screws 4 on the sliding frame 2 at the rightmost end are disassembled simultaneously, at this time, the air cylinders on the right side in the two short air cylinders can be moved to the right for 2-3 short air cylinders, and then the knobs at the two ends of the supporting bars 83 are respectively screwed on the bosses 81 on the two separated short air cylinders, so that the space between the two separated short air cylinders is reserved for 2-3 short air cylinders (the state is shown in fig. 5), and the maintenance work of a certain part by a worker is facilitated.
Finally, the above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (7)
1. The utility model provides a jet fan for tunnel of institutional advancement, is including fixing support plate (1) on the tunnel roof, its characterized in that: two sliding grooves (11) extending in the left-right direction are formed in the supporting base plate (1), a plurality of sliding frames (2) arranged left and right are connected to the two sliding grooves (11) in a sliding mode, a short air duct (3) is fixed to the lower end of each sliding frame (2), and the right end of the short air duct (3) on the left side is inserted and sleeved at the left end of the short air duct (3) on the right side adjacent to the short air duct;
the sliding frame (2) at the leftmost side and the sliding frame (2) at the rightmost side are respectively and fixedly connected with the supporting bottom plate (1) through corresponding screws (4);
a motor (51) is fixed in one of the short wind cylinders (3) in the middle, and the motor (51) is connected with an impeller (52).
2. The improved jet fan for the tunnel of claim 1, wherein: the left end of the short air duct (3) is formed with a step positioning hole (31), and the inner diameter of a large end hole of the step positioning hole (31) is matched with the outer diameter of the right end of the short air duct (3).
3. The improved jet fan for the tunnel of claim 1, wherein: the sliding frame (2) comprises a connecting frame (21) in an inverted U shape, two sliding blocks (22) arranged in front and back are formed at the upper end of the connecting frame (21), and the sliding blocks (22) are inserted in the sliding grooves (11);
two groups of threaded holes (23) which are arranged up and down are formed in the connecting frame (21); a connecting plate (61) is arranged between two adjacent connecting frames (21), two second screws (62) are respectively sleeved at two ends of the connecting plate (61), and the two second screws (62) are respectively screwed in corresponding threaded holes (23) on the two adjacent connecting frames (21).
4. The improved jet fan for the tunnel of claim 1, wherein: the supporting bottom plate (1) is fixedly connected with the top wall of the tunnel through a plurality of rear expanded bottom anchor bolts (7).
5. The improved jet fan for the tunnel of claim 1, wherein: a boss (81) is fixed on the outer wall of the front end of the short air duct (3), and a second threaded hole (82) is formed in the boss (81);
the front end of short dryer (3) is equipped with support bar (83), and the both ends of support bar (83) respectively rotate and are connected with a knob (84), and the tip shaping that knob (84) are close to short dryer (3) has screw rod (841), and two screw rods (841) are in second screw hole (82) on boss (81) of two corresponding short dryer (3) of spiro union respectively.
6. The improved jet fan for the tunnel of claim 5, wherein: 2-3 short air ducts (3) are clamped between the two short air ducts (3) connected with the two knobs (84).
7. The improved jet fan for the tunnel of claim 1, wherein: one end of the sliding groove (11) is open, the other end of the sliding groove is not open, and a baffle (9) is fixed at the open end of the sliding groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021407634.6U CN212744420U (en) | 2020-07-17 | 2020-07-17 | Improved jet fan for tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021407634.6U CN212744420U (en) | 2020-07-17 | 2020-07-17 | Improved jet fan for tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212744420U true CN212744420U (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021407634.6U Active CN212744420U (en) | 2020-07-17 | 2020-07-17 | Improved jet fan for tunnel |
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| CN (1) | CN212744420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202792A (en) * | 2021-05-12 | 2021-08-03 | 安徽乐普电机有限公司 | Axial flow fan for electric fireplace |
-
2020
- 2020-07-17 CN CN202021407634.6U patent/CN212744420U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202792A (en) * | 2021-05-12 | 2021-08-03 | 安徽乐普电机有限公司 | Axial flow fan for electric fireplace |
| CN113202792B (en) * | 2021-05-12 | 2022-11-15 | 安徽乐普电机有限公司 | Axial flow fan for electric fireplace |
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