Movable fire-fighting smoke ventilator

Abstract

A movable fire-fighting smoke ventilator comprises a smoke exhaust fan, a protection shell of the smoke exhaust fan and a driving part of the smoke exhaust fan, the driving part is arranged on a portable support, the protection shell is connected to the driving part, a transmission cavity is formed in the protection shell, a driving shaft of the driving part penetrates through the protection shell and extends into the transmission cavity, and the driving shaft is connected to the driving part. The connecting end of the smoke exhaust fan extends into the transmission cavity and is in transmission connection with the driving shaft, and a fan body of the smoke exhaust fan covers an opening of the transmission cavity. The smoke exhaust fan has the advantages that the connecting position of the smoke exhaust fan and the driving shaft is located in a relatively sealed environment, the sealing performance is good in the working process of the smoke exhaust fan, foreign matter entering the connecting position can be effectively reduced, and the service life of the smoke exhaust fan can be prolonged; the bottom of the frame of the smoke ventilator is connected with the wear-resistant rubber supporting legs, the anti-vibration, anti-skid and anti-displacement effects can be achieved when the smoke ventilator runs, the fan lantern ring is provided with the clamping groove, the fan lantern ring can be connected with a smoke exhaust air pipe according to requirements, and remote smoke exhaust and air supply are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a mobile fire fighting smoke exhaust machine. Background Art

[0002] There is a Chinese utility model patent with application number CN201821741561.7 and the name of "A Chemical Smoke Exhaust Machine for Fire Fighting", which discloses a chemical smoke exhaust machine for fire fighting, including a machine body, a protective net is arranged on the front face of the machine body, a connecting piece is arranged around the protective net, the connecting piece is fixedly connected to the front face of the machine body by bolts, a terminal box seat is arranged on one side of the outer wall of the machine body, a terminal box is arranged on the terminal box seat, an impeller is arranged inside the machine body, blades are arranged on the outer walls around the impeller, a bearing is arranged inside the impeller, a connecting hole is arranged inside the bearing, a middle cylinder is arranged on one side of the impeller, a motor is arranged inside the middle cylinder, the output end of the motor is rotatably connected to the impeller through the connecting hole, and an air outlet pipe is arranged on the outer wall of the middle cylinder. The utility model can effectively protect the internal structure of the smoke exhaust machine by arranging a protective net on the front face of the machine body, thereby avoiding damage to the smoke exhaust machine in fire fighting and chemical environments. However, during the use of the smoke exhaust fan, a lot of foreign matter still enters the impeller position through the protective net, affecting the service life of the smoke exhaust fan. Therefore, the structure of the smoke exhaust fan needs to be further improved. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a mobile fire-fighting smoke exhaust machine with good sealing performance at the connection position between the smoke exhaust fan and the driving part, a firm structure, a long service life, easy movement of the smoke exhaust machine, and the ability to easily adjust the exhaust direction of the smoke exhaust machine when in use.

[0004] The technical solution adopted by the utility model to solve the above-mentioned technical problems is as follows: the mobile fire-fighting smoke exhaust machine includes a smoke exhaust fan, a protective shell of the smoke exhaust fan, and a driving part of the smoke exhaust fan, and is characterized in that: the driving part is arranged on a portable bracket, the protective shell is connected to the driving part, a transmission cavity is arranged in the protective shell, the driving shaft of the driving part passes through the protective shell and extends into the transmission cavity, the connecting end of the smoke exhaust fan extends into the transmission cavity and is connected to the driving shaft for transmission, and the fan body of the smoke exhaust fan covers the opening of the transmission cavity.

[0005] As an improvement, an angle adjustment structure capable of adjusting the air inlet angle of the smoke exhaust fan may preferably be provided on the portable bracket.

[0006] As a further improvement, the angle adjustment structure may be specifically preferably that the portable bracket includes a frame sleeve, a frame rod and a support plate, the driving unit is arranged on the support plate, the support plate is transversely arranged on the frame sleeve, the frame rod can be telescopically inserted in the frame sleeve, and a telescopic adjustment structure is arranged at the connection position of the frame rod and the frame sleeve.

[0007] As a further improvement, the telescopic adjustment may be specifically preferably that handle pieces are symmetrically arranged on the frame sleeve, any handle piece is rotatably connected to the corresponding position of the frame sleeve, the upper part of the handle piece is in contact with the outer wall of the frame sleeve through an elastic sheet, the lower part of the handle piece is connected to the positioning plug, and positioning holes into which the positioning plugs can be inserted are sequentially arranged on the frame rod.

[0008] As a further improvement, the rack rod may preferably be a hollow structure, an elastic locking piece is arranged inside the rack rod, and a locking through hole is arranged on the side wall of the rack rod corresponding to the elastic locking piece.

[0009] As a further improvement, counterweights may be preferably provided at the bottom of the frame sleeve and the frame rod, respectively.

[0010] As an improvement, the protective shell may preferably include a front protective net, a ring, a seat and a rear protective net, the transmission cavity is located in the middle of the seat, the ring is connected to the seat, the front protective net is connected to the ring, and the rear protective net is connected to the seat.

[0011] As an improvement, the smoke exhaust fan may preferably include a chuck, fan blades, and a connecting piece, wherein the connecting piece is connected in the transmission cavity and is connected to the drive shaft transmission, the chuck is connected to the connecting piece, the chuck covers the opening of the transmission cavity, and the ends of the fan blades are sequentially connected to the positioning grooves on the circumference of the chuck.

[0012] As a further improvement, the chuck may preferably be composed of a front disc body and a rear disc body, and annular grooves are respectively provided on the rear surface of the front disc body and the front surface of the rear disc body. When the front disc body and the rear disc body are matched, the annular grooves of the front disc body and the rear disc body are combined to form a weight reduction cavity.

[0013] As a further improvement, the fan blade may preferably include a blade, a blade support and a blade root, wherein the blade root is clamped in the positioning groove, the blade support contacts the outer wall of the chuck, and the blade is connected to the surface of the blade support.

[0014] Compared with the prior art, the advantages of the utility model are: a transmission cavity is arranged in the protective shell, the driving shaft of the driving part passes through the protective shell and extends into the transmission cavity, the connecting end of the smoke exhaust fan extends into the transmission cavity and is connected to the driving shaft by transmission, the fan body of the smoke exhaust fan covers the opening of the transmission cavity, the connecting position of the smoke exhaust fan and the driving shaft is in a relatively sealed environment, the sealing performance is good during the operation of the smoke exhaust machine, the entry of foreign matter into the connecting position can be effectively reduced, and the service life of the smoke exhaust machine can be extended; at the same time, the connecting position of the smoke exhaust fan and the driving shaft is arranged in the transmission cavity, which saves the space occupied by the transmission structure. The smoke exhaust fan has a compact structure, and the fan blades are clamped by a chuck, which not only has good sealing performance, but also helps to further extend the service life of the smoke exhaust fan. Furthermore, an angle adjustment structure that can adjust the air inlet angle of the smoke exhaust fan is provided on the portable bracket. When using the fire smoke exhaust fan, it can be tilted forward and backward, and the smoke exhaust direction can be easily adjusted, making the application more convenient and practical. Most importantly, the bottom of the smoke exhaust fan frame is connected with wear-resistant rubber feet, which can prevent shock, slip and displacement when the smoke exhaust fan is running. A card slot is provided on the fan collar, which can be connected to the smoke exhaust duct as needed to achieve long-distance smoke exhaust and air supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0016] Figure 2 for Figure 1 A stereogram at another angle;

[0017] Figure 3 yes Figure 1 The structural breakdown diagram of

[0018] Figure 4 yes Figure 3 A three-dimensional image after removing the disassembled portable stand;

[0019] Figure 5 yes Figure 4 The structural breakdown diagram of

[0020] Figure 6 yes Figure 5 Further structural decomposition diagram of ;

[0021] Figure 7 yes Figure 6 Further structural decomposition diagram of ;

[0022] Figure 8 yes Figure 4 Another structural decomposition diagram of ;

[0023] Fig. 9 yes Figure 8 The front projection diagram after removing the driving part;

[0024] Fig.10 yes Fig. 9 Sectional view along line AA;

[0025] Fig.11 yes Fig. 9 A three-dimensional image after removing the protective shell;

[0026] Fig.12 yes Fig.11 The structural breakdown diagram of

[0027] Fig.13 yes Figure 4 A perspective view of the portable stand;

[0028] Fig.14 yes Fig.13 Rear projection of

[0029] Fig.15 yes Fig.14 The cross section along line BB;

[0030] Fig.16 yes Fig.13 Side projection of

[0031] Fig.17 yes Fig.16 Sectional view along line CC. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] like Figures 1 to 17 As shown, the mobile fire smoke exhaust machine of this embodiment includes a smoke exhaust fan, a protective shell of the smoke exhaust fan, and a driving unit 1 of the smoke exhaust fan. The driving unit 1 adopts a gasoline engine. The driving unit 1 is arranged on a portable bracket, the protective shell is connected to the driving unit 1, and a transmission cavity 23 is arranged in the protective shell. The driving shaft 11 of the driving unit 1 passes through the protective shell and extends into the transmission cavity 23. The connecting end of the smoke exhaust fan extends into the transmission cavity 23 and is connected to the driving shaft 11 by transmission. The fan body of the smoke exhaust fan covers the opening of the transmission cavity 23.

[0034] The portable bracket is provided with an angle adjustment structure capable of adjusting the air inlet angle of the smoke exhaust fan. Specifically, the angle adjustment structure is that the portable bracket includes a frame sleeve 3, a frame rod 31 and a support plate 32, the driving unit 1 is arranged on the support plate 32, the support plate 32 is arranged transversely on the frame sleeve 3, the frame rod 31 can be inserted into the frame sleeve 3 telescopically, and a telescopic adjustment structure is arranged at the connection position between the frame rod 31 and the frame sleeve 3. Specifically, the telescopic adjustment is that handles 4 are symmetrically arranged on the frame sleeve 3, any handle 4 is rotatably connected to the corresponding position of the frame sleeve 3, the upper part of the handle 4 is in contact with the outer wall of the frame sleeve through an elastic sheet 41, the lower part of the handle 4 is connected to the positioning plug 42, and the frame rod 31 is sequentially provided with positioning holes 311 capable of inserting the positioning plug 42. The frame rod 31 is a hollow structure, an elastic locking piece 5 is arranged inside the frame rod 31, and a locking through hole 312 is arranged on the side wall of the frame rod corresponding to the elastic locking piece 5. A counterweight 6 is provided at the bottom of the frame sleeve 3 and the frame rod 31. A limiting structure 43 made of screws is provided on the frame sleeve 3 above the handle 4.

[0035] The protective shell includes a front protective net 20, a collar 22, a seat 2 and a rear protective net 21. The transmission cavity 23 is located in the middle of the seat 2. The collar 22 is connected to the seat 2, the front protective net 20 is connected to the collar 22, and the rear protective net 21 is connected to the seat 2. The end face of the driving part 1 is screwed and fixed with a pad 12. The driving shaft 11 of the driving part 1 is sleeved with a coupling 13, and the coupling 13 is inserted into the through hole of the connecting piece 9. The coupling 13 and the driving shaft 11 are connected by spline transmission.

[0036] The smoke exhaust fan includes a chuck, a fan blade, and a connecting member 9. The connecting member 9 is connected in the transmission cavity 23 and is connected to the drive shaft 11 for transmission. The chuck is connected to the connecting member 9. The chuck covers the opening of the transmission cavity 23. The ends of the fan blades are sequentially connected to the positioning grooves on the circumference of the chuck. The chuck is formed by a front disk body 70 and a rear disk body 7. An annular groove is respectively provided on the rear surface of the front disk body 70 and the front surface of the rear disk body 7. When the front disk body 70 and the rear disk body 7 are matched, the annular grooves of the front disk body and the rear disk body are combined to form a weight reduction cavity 71. The fan blade includes a blade 8, a blade tray 81, and a blade root 82. The blade root 82 is stuck in the positioning groove. The blade tray 81 touches the outer wall of the chuck. The blade 8 is connected to the surface of the blade tray 81.

Claims

1. A mobile fire smoke exhaust machine, comprising a smoke exhaust fan, a protective shell of the smoke exhaust fan, and a driving part (1) of the smoke exhaust fan, characterized in that: The driving part (1) is arranged on a portable bracket, the protective shell is connected to the driving part (1), a transmission cavity (23) is arranged in the protective shell, a driving shaft (11) of the driving part (1) passes through the protective shell and extends into the transmission cavity (23), a connecting end of the smoke exhaust fan extends into the transmission cavity (23) and is transmission-connected to the driving shaft (11), and a fan body of the smoke exhaust fan covers the opening of the transmission cavity (23).

2. The mobile fire smoke exhaust machine according to claim 1, characterized in that: An angle adjustment structure capable of adjusting the air inlet angle of the smoke exhaust fan is arranged on the portable bracket.

3. The mobile fire smoke exhaust machine according to claim 2, characterized in that: The angle adjustment structure is specifically as follows: the portable bracket comprises a frame sleeve (3), a frame rod (31) and a support plate (32); the driving unit (1) is arranged on the support plate (32); the support plate (32) is transversely arranged on the frame sleeve (3); the frame rod (31) can be telescopically inserted into the frame sleeve (3); and a telescopic adjustment structure is arranged at the connection position between the frame rod (31) and the frame sleeve (3).

4. The mobile fire smoke exhaust machine according to claim 3, characterized in that: The telescopic adjustment is specifically as follows: handle pieces (4) are symmetrically arranged on the frame sleeve (3); any handle piece (4) is rotatably connected to a corresponding position of the frame sleeve (3); the upper part of the handle piece (4) contacts the outer wall of the frame sleeve through an elastic sheet (41); the lower part of the handle piece (4) is connected to a positioning plug (42); and positioning holes (311) capable of inserting the positioning plug (42) are sequentially arranged on the frame rod (31).

5. The mobile fire smoke exhaust machine according to claim 4, characterized in that: The frame rod (31) is a hollow structure. An elastic locking piece (5) is arranged inside the frame rod (31), and a locking through hole (312) is arranged on a side wall of the frame rod corresponding to the elastic locking piece (5).

6. The mobile fire smoke exhaust machine according to claim 5, characterized in that: Counterweights (6) are respectively arranged at the bottom of the frame sleeve (3) and the frame rod (31).

7. The mobile fire smoke exhaust machine according to any one of claims 1 to 6, characterized in that: The protective shell comprises a front protective net (20), a collar (22), a sleeve (2) and a rear protective net (21); the transmission chamber (23) is located in the middle of the sleeve (2); the collar (22) is connected to the sleeve (2); the front protective net (20) is connected to the collar (22); and the rear protective net (21) is connected to the sleeve (2).

8. The mobile fire smoke exhaust machine according to any one of claims 1 to 6, characterized in that: The smoke exhaust fan comprises a chuck, fan blades, and a connecting piece (9); the connecting piece (9) is connected in a transmission cavity (23) and is transmission-connected to a drive shaft (11); the chuck is connected to the connecting piece (9); the chuck covers an opening of the transmission cavity (23); and the ends of the fan blades are sequentially connected to positioning grooves on the circumference of the chuck.

9. The mobile fire smoke exhaust machine according to claim 8, characterized in that: The chuck is formed by a front disc body (70) and a rear disc body (7) being matched together. Annular grooves are respectively arranged on the rear surface of the front disc body (70) and the front surface of the rear disc body (7). When the front disc body (70) and the rear disc body (7) are matched together, the annular grooves of the front disc body and the rear disc body are matched together to form a weight reduction cavity (71).

10. The mobile fire smoke exhaust machine according to claim 8, characterized in that: The fan blade comprises a blade (8), a blade support (81) and a blade root (82); the blade root (82) is clamped in a positioning groove, the blade support (81) contacts the outer wall of the chuck, and the blade (8) is connected to the surface of the blade support (81).

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