CN216477438U

CN216477438U - Ventilation unit is used in borehole operation

Info

Publication number: CN216477438U
Application number: CN202123211072.5U
Authority: CN
Inventors: 张超; 蒋策安
Original assignee: Guizhou One Stop Equipment Technology Co ltd
Current assignee: Guizhou One Stop Equipment Technology Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-10
Anticipated expiration: 2031-12-20

Abstract

The utility model provides a ventilation unit is used in borehole operation, includes tuber pipe and hood, the hood is close to be fixed with the guide arm in the middle of the one end of tuber pipe, the free end of guide arm extends to the inside of tuber pipe, be fixed with the protection casing on the outer wall of tuber pipe, the internally mounted of protection casing has ringing mechanism, ringing mechanism includes bell jar, rotating housing, two journal stirrup and two bell rings, the bell jar is fixed on the inner wall of protection casing, two the journal stirrup symmetry respectively is fixed the outer wall bottom of rotating housing, two the bell ring movable sleeve is established two respectively on the journal stirrup. The utility model discloses in, when in borehole operation, when the wind pressure in the tuber pipe reduces or disappears, ringing mechanism makes a sound under actuating mechanism's drive to the effect of warning.

Description

Ventilation unit is used in borehole operation

Technical Field

The utility model relates to a ventilation equipment technical field of colliery operation in the pit especially relates to a ventilation unit for borehole operation.

Background

In the production process of coal mines, a large number of tunnels must be tunneled in order to prepare new levels, new mining areas and stope faces, and during tunneling, ventilation must be performed on the tunneling face in order to supply fresh air for personnel to breathe, dilute gas on the tunneling face and harmful gas and mine dust generated after blasting and create good weather conditions, wherein the ventilation is called local ventilation or tunneling ventilation.

The existing ventilation device for underground operation generally uses a large-air-volume blower at the wellhead to convey fresh air outside a well to an underground operation end through an air pipe, so that the effects of supplementing underground oxygen and diluting harmful gases such as gas are achieved, but the working state that an operator cannot be reminded of ventilation equipment in time also exists, and therefore potential safety hazards are caused.

Disclosure of Invention

The utility model aims to provide an: the ventilating device for underground operation is provided, and is particularly applied to underground operation of a coal mine in order to solve the defect that the working state of ventilating equipment of an operator cannot be reminded in time in the prior art, so that potential safety hazards exist.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a ventilation device for underground operation comprises an air pipe and an air cap, wherein a guide rod is fixed in the middle of one end, close to the air pipe, of the air cap, the free end of the guide rod extends into the air pipe, a protective cover is fixed on the outer wall of the air pipe, and a ringing mechanism is installed inside the protective cover;

the ringing mechanism comprises a bell cover, a rotating cover, two support lugs and two bell rings, wherein the bell cover is fixed on the inner wall of the protective cover, the two support lugs are respectively and symmetrically fixed at the bottom of the outer wall of the rotating cover, and the two bell rings are respectively and movably sleeved on the two support lugs;

the tuber pipe is close to it is connected with the pendulum rod to rotate on the lateral wall of protection casing, the pendulum rod is close to the one end of bell jar is fixed with the dog, the pendulum rod is close to the one end of guide arm pass through the spout with slip table sliding connection on the guide arm, still install actuating mechanism in the protection casing.

On the basis of the above scheme and as a preferable scheme of the scheme: the driving mechanism comprises a butterfly stud, a fixing rod and a torsion spring, the tail end of the butterfly stud penetrates through the protective cover and is fixedly connected with the center of the rotary cover, the butterfly stud is rotatably connected with the protective cover, the fixing rod is located at the rotary center of the rotary cover, one end of the fixing rod is fixedly connected with the outer wall of the air pipe, and two ends of the torsion spring are fixedly connected with the inner side wall of the rotary cover and the outer wall of the fixing rod respectively.

On the basis of the above scheme and as a preferable scheme of the scheme: the air pipe is close to the inner wall of one end of the air cap is fixedly provided with a support, the guide rod is nested in the center of the support in a sliding mode, the outer surface of one end, close to the swing rod, of the guide rod is sleeved with a pressure spring, and two ends of the pressure spring are respectively attached to a boss on the guide rod and the end face of the support.

On the basis of the above scheme and as a preferable scheme of the scheme: ratchets are respectively arranged on the opposite sides of the stop block and the rotating cover, and are in barb shapes and are matched with the rotating direction of the torsion spring.

On the basis of the above scheme and as a preferable scheme of the scheme: the bell ring can freely rock in the support lug, and the outer wall of the bell ring can be in contact with the inner side wall of the bell cover.

On the basis of the above scheme and as a preferable scheme of the scheme: and a sealing ring is arranged at the joint of the protective cover and the butterfly stud.

The beneficial effects of the utility model reside in that:

this ventilation unit is used in borehole operation, ringing mechanism and actuating mechanism through the setting, when the wind pressure in the tuber pipe descends, make the thrust that the hood received be not enough to offset pressure spring's elasticity, thereby under pressure spring's promotion, the guide arm promotes the counter-clockwise deflection of pendulum rod, make the dog break away from the contact with rotatory cover, rotatory cover is rotatory fast under actuating mechanism's torque spring drives, the journal stirrup of rotatory cover both sides drives bell ring also fast revolution, under the effect of centrifugal force, the bell ring constantly strikes bell cover and makes a sound, thereby play and remind the warning effect, prevent to lead to taking place the potential safety hazard in the pit because of ventilating inadequately.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of part A of the present invention;

fig. 4 is a cross-sectional view of the rotating mask of the present invention;

fig. 5 is an enlarged view of the ratchet of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the ventilation device for downhole operation of the present embodiment includes an air pipe 1 and an air cap 2, a guide rod 3 is fixed in the middle of one end of the air cap 2 close to the air pipe 1, a free end of the guide rod 3 extends into the air pipe 1, a protective cover 4 is fixed on the outer wall of the air pipe 1, and a ringing mechanism is installed inside the protective cover 4;

the ringing mechanism comprises a bell cover 51, a rotating cover 52, two support lugs 53 and two bell rings 54, wherein the bell cover 51 is fixed on the inner wall of the protective cover 4, the two support lugs 53 are respectively and symmetrically fixed at the bottom of the outer wall of the rotating cover 52, and the two bell rings 54 are respectively and movably sleeved on the two support lugs 53;

the side wall of the air pipe 1 close to the protective cover 4 is rotatably connected with a swing rod 6, one end of the swing rod 6 close to the bell jar 51 is fixed with a stop dog 7, one end of the swing rod 6 close to the guide rod 3 is connected with a sliding table on the guide rod 3 in a sliding mode through a sliding groove, and a driving mechanism is further installed in the protective cover 4.

During the use, when the wind pressure in tuber pipe 1 descends, make the thrust that hood 2 received be not enough to offset pressure spring 10's elasticity, thereby under pressure spring 10's promotion, guide arm 3 promotes pendulum rod 6 anticlockwise deflection, make dog 7 break away from with the contact of rotatory cover 52, rotatory cover 52 is fast revolution under actuating mechanism's torsion spring 83 drives, the journal stirrup 53 of rotatory cover 52 both sides drives bell ring 54 also fast revolution, under the effect of centrifugal force, bell ring 54 constantly strikes bell cover 51 and makes a sound, thereby play and remind the warning effect, prevent to lead to taking place the potential safety hazard in the pit because of ventilating inadequately.

As shown in fig. 2-5, the driving mechanism includes a butterfly stud 81, a fixing rod 82 and a torsion spring 83, the end of the butterfly stud 81 penetrates through the protective cover 4 and is fixedly connected with the center of the rotary cover 52, the butterfly stud 81 is rotatably connected with the protective cover 4, the fixing rod 82 is located at the rotation center of the rotary cover 52, and one end of the fixing rod is fixedly connected with the outer wall of the air duct 1, two ends of the torsion spring 83 are respectively fixedly connected with the inner side wall of the rotary cover 52 and the outer wall of the fixing rod 82, the driving mechanism provides rotary power for the bell ring 54 to knock the bell cover 51 to make a sound, when the torsion spring 83 is compressed by rotation, the torsion spring drives the rotary cover 52 to rotate reversely by its own elasticity, so that the bell ring 54 is subjected to centrifugal force generated during rotation, thereby continuously knocking the bell cover 51 to make a sound, and playing a warning role.

As shown in fig. 2 and 3, a support 9 is fixed on the inner wall of one end of the air pipe 1 close to the hood 2, the guide rod 3 is slidably nested in the center of the support 9, a pressure spring 10 is sleeved on the outer surface of one end of the guide rod 3 close to the swing rod 6, two ends of the pressure spring 10 are respectively attached to a boss on the guide rod 3 and the end surface of the support 9, the support 9 plays a supporting role for the guide rod 3 and the hood 2, and power is provided for the counterclockwise deflection of the swing rod 6 through the self elasticity of the pressure spring 10.

As shown in fig. 5, the opposite sides of the stopper 7 and the rotating cover 52 are respectively provided with a ratchet 11, and the ratchet 11 is in a barbed shape and is adapted to the rotation direction of the torsion spring 83, so that the stopper 7 can play a role of limiting the rotation of the rotating cover 52 through the ratchet 11, and simultaneously the stud 81 can drive the rotating cover 52 to rotate along the clockwise direction of the ratchet 11 and compress the torsion spring 83.

As shown in fig. 2, 3 and 4, the bell ring 54 freely swings in the support lug 53, and the outer wall of the bell ring 54 can contact with the inner side wall of the bell housing 51, so that the bell ring 54 is under the action of centrifugal force when rotating along with the support lug 53, and the inner side wall of the bell housing 51 is continuously knocked to make a sound, thereby playing a role in reminding and warning.

As shown in fig. 1 to 3, a sealing ring (not shown) is installed at a connection portion between the shield 4 and the butterfly stud 81 to perform a sealing function, so as to prevent dust in the air from entering the shield 4.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a ventilation unit is used in borehole operation, includes tuber pipe (1) and hood (2), its characterized in that: a guide rod (3) is fixed in the middle of one end, close to the air pipe (1), of the air cap (2), the free end of the guide rod (3) extends into the air pipe (1), a protective cover (4) is fixed on the outer wall of the air pipe (1), and a ringing mechanism is installed inside the protective cover (4); the ringing mechanism comprises a bell cover (51), a rotating cover (52), two support lugs (53) and two bell rings (54), wherein the bell cover (51) is fixed on the inner wall of the protective cover (4), the two support lugs (53) are respectively and symmetrically fixed at the bottom of the outer wall of the rotating cover (52), and the two bell rings (54) are respectively and movably sleeved on the two support lugs (53); tuber pipe (1) is close to it is connected with pendulum rod (6) to rotate on the lateral wall of protection casing (4), pendulum rod (6) are close to the one end of bell jar (51) is fixed with dog (7), pendulum rod (6) are close to the one end of guide arm (3) pass through the spout with slip table sliding connection on guide arm (3), still install actuating mechanism in protection casing (4).

2. A ventilation device for downhole operations according to claim 1, wherein: the driving mechanism comprises a butterfly stud (81), a fixing rod (82) and a torsion spring (83), the tail end of the butterfly stud (81) penetrates through the protective cover (4) and is fixedly connected with the center of the rotary cover (52), the butterfly stud (81) is rotatably connected with the protective cover (4), the fixing rod (82) is located at the rotary center of the rotary cover (52), one end of the fixing rod is fixedly connected with the outer wall of the air pipe (1), and two ends of the torsion spring (83) are fixedly connected with the inner side wall of the rotary cover (52) and the outer wall of the fixing rod (82) respectively.

3. A ventilation device for downhole operations according to claim 2, characterized in that: tuber pipe (1) is close to the one end inner wall of hood (2) is fixed with support (9), guide arm (3) slip nestification is in the center of support (9), guide arm (3) are close to the one end surface cover of pendulum rod (6) is equipped with pressure spring (10), the both ends of pressure spring (10) respectively with boss on guide arm (3) with the terminal surface of support (9) is laminated mutually.

4. A ventilation device for downhole operations according to claim 3, wherein: ratchets (11) are respectively arranged on the opposite sides of the stop block (7) and the rotating cover (52), and the ratchets (11) are in a barb shape and are adaptive to the rotating direction of the torsion spring (83).

5. A ventilation device for downhole operations according to claim 4, wherein: the bell ring (54) freely swings in the support lug (53), and the outer wall of the bell ring (54) can be in contact with the inner side wall of the bell cover (51).

6. A ventilation device for downhole operations according to claim 5, wherein: and a sealing ring is arranged at the joint of the protective cover (4) and the butterfly stud (81).