CN215568765U - Draught fan with improved air suction pipe - Google Patents

Abstract

The utility model discloses an induced draft fan with an improved induced draft tube, which comprises a machine body induced draft tube, a hard joint, a hose hard head, a hose body, a hose hard tail and an induced draft fan body, wherein one end of the induced draft fan body is fixedly connected with the machine body induced draft tube, one end of the machine body induced draft tube is clamped with the hard tube, one end of the hard tube is in threaded connection with the hard joint, one end of the hard joint is clamped with the hose hard head, the hose hard head is fixedly connected with the hose body, and the hose body is fixedly connected with the hose hard tail.

Description

Draught fan with improved air suction pipe

Technical Field

The utility model relates to the technical field of induced draft fans, in particular to an induced draft fan with an improved air draft tube.

Background

The induced draft fan is a device which generates negative pressure through rotation of an impeller and then extracts air from a system (device), is generally installed at the tail end of a boiler and is used for extracting hot flue gas in a hearth, and in daily life, a ventilator is generally divided into the induced draft fan (used under negative pressure) and an air blower (used under positive pressure) according to different positive and negative pressure use modes.

The suction pipe of the frequently-used induced draft fan is difficult to disassemble and can not change the air draft direction, the disassembly and the daily cleaning work of the suction pipe are not facilitated, the length of the suction pipe can occupy a large space when the induced draft fan is not used, the storage is not facilitated, and the length of the suction pipe is fixed so that the length when the induced draft fan is used is fixed.

Therefore, the induced draft fan with the improved induced draft tube is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an induced draft fan with an improved air draft tube, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an improve draught fan of aspiration channel, includes organism aspiration channel, rigid pipe, stereoplasm joint, hose stereoplasm head, hose body, hose stereoplasm afterbody and draught fan organism, draught fan organism one end fixedly connected with organism aspiration channel, organism aspiration channel one end joint has the rigid pipe, rigid pipe one end threaded connection has the stereoplasm joint, stereoplasm joint one end joint has hose stereoplasm head, hose stereoplasm head fixedly connected with hose body, hose body fixedly connected with hose stereoplasm afterbody.

Preferably, the hose hard head comprises a hard head pipe wall, a first retraction groove, a first retraction spring, a first clamping block, a return mechanism and a first T-shaped clamping groove, the hard head pipe wall is symmetrically provided with the first retraction groove, one end of the first retraction groove is fixedly connected with the first retraction spring, one end of the first retraction spring is fixedly connected with the first clamping block, one end of the first clamping block is fixedly connected with the return mechanism, the first clamping block is slidably connected with the first retraction groove, one end of the hard joint is provided with the coordination groove, and the first clamping block is in matched clamping connection with the coordination groove.

Preferably, the return mechanism comprises a first T-shaped sliding block, a return spring, a fixing nail, a sliding steering wheel and a soft steel cable, wherein the return spring is fixedly connected to one end of the first T-shaped clamping groove, the first T-shaped sliding block is fixedly connected to one end of the return spring, the fixing nail is fixedly connected to the surface of the first T-shaped sliding block, the soft steel cable is fixedly connected to the surface of the fixing nail, the first clamping block is fixedly connected to one end of the soft steel cable, the plurality of sliding steering wheels are fixedly connected to the inner wall of the hard head pipe, and the sliding steering wheels are connected with the soft steel cable in a sliding mode.

Preferably, the hard pipe comprises a pipe body wall, a second clamping block, a second retraction spring, a second retraction groove, a second T-shaped clamping groove, a second T-shaped sliding block and a soft iron cable, the second retraction groove is symmetrically formed in the outer wall of one end of the pipe body wall, the second retraction groove is fixedly connected to the bottom of the second retraction groove, the second retraction spring is fixedly connected to the second clamping block, one end of the second retraction spring is fixedly connected to the second clamping block, a coordination clamping groove is formed in the inner wall of one end of the air suction pipe of the machine body, the second clamping block is connected with the coordination clamping groove in a matched mode, the soft iron cable is fixedly connected to one end of the second clamping block, the second T-shaped clamping groove is symmetrically formed in the surface of the pipe body wall, and the second T-shaped sliding block is connected with the second T-shaped clamping groove in a matched sliding mode.

Preferably, the hard tail part of the hose is in threaded connection with the hard joint.

Compared with the prior art, the utility model has the beneficial effects that: when the suction pipe is disassembled, the second T-shaped sliding block in the second T-shaped groove is pulled to drive the soft steel cable to drive the second clamping block to be separated from the clamping groove, the hard pipe can be taken down, the first T-shaped sliding block is pressed down, the T-shaped sliding block moves downwards to pull the soft steel cable, so that the first clamping block is driven to release clamping with the matching groove, the hose can be taken down, the hard joint is rotated to release threaded connection between the hard joint and the hard pipe, the hard joint can be taken down, the hard tail of the hose is in threaded connection with the hard joint, and the hard head of the hose is clamped to achieve the purpose of increasing the length of the suction pipe.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the whole structure of the suction pipe of the present invention;

FIG. 3 is a schematic view of a hard adapter mounting structure according to the present invention;

FIG. 4 is a partial schematic view of the rigid hose head according to the present invention;

FIG. 5 is a schematic view of a return mechanism according to the present invention;

FIG. 6 is a schematic view of a rigid pipe installation structure according to the present invention;

FIG. 7 is a schematic view of a second T-shaped slider mounting structure according to the present invention;

fig. 8 is a partial structural schematic view of the hard tube of the present invention.

In the figure: 1. an air suction pipe of the machine body; 11. a clamping groove; 2. a rigid tube; 21. the wall of the tube body; 22. a second fixture block; 23. a second retraction spring; 24. a second retraction slot; 25. a second T-shaped slot; 26. a second T-shaped slider; 27. soft iron cables; 28. a pulley; 3. a hard joint; 31. a positioning groove; 4. a hose hard head; 41. a hard head tube wall; 42. a first retraction slot; 43. a first retraction spring; 44. a first clamping block; 45. a return mechanism; 451. a first T-shaped slider; 452. a return spring; 453. fixing nails; 454. sliding a steering wheel; 455. a soft steel cord; 46. a first T-shaped slot; 5. a flexible pipe body; 6. a hose rigid tail; 7. an induced draft fan body.

Detailed Description

The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, an induced draft fan for improving an induced draft tube in the drawings comprises a body induced draft tube 1, a hard tube 2, a hard joint 3, a hose hard head 4, a hose body 5, a hose hard tail 6 and an induced draft fan body 7, wherein one end of the induced draft fan body 7 is fixedly connected with the body induced draft tube 1, one end of the body induced draft tube 1 is clamped with the hard tube 2, one end of the hard tube 2 is in threaded connection with the hard joint 3, one end of the hard joint 3 is clamped with the hose hard head 4, the hose hard head 4 is fixedly connected with the hose body 5, and the hose body 5 is fixedly connected with the hose hard tail 6.

When the disassembly is carried out, the joint of the hard pipe 2 and the machine body air suction pipe 1 is removed, the joint of the hard joint 3 and the hard head part 4 of the hose is removed, the hard joint 3 and the hard pipe 2 are removed from threaded connection when the hard joint 3 is rotated, the air suction pipe can be disassembled, the hard joint 3 is firstly rotated to ensure that the hard joint 3 and the hard pipe 2 are in threaded connection when the assembly is carried out, then the hard joint 3 and the hard head part 4 of the hose are clamped, then the hard pipe 2 and the machine body air suction pipe 1 are clamped, if the air suction pipe is not long enough, the hard joint 3 can be in threaded connection with the hard tail part 6 of the hose, and then the hard joint 3 is clamped with the hard head part 4 of the hose.

Referring to fig. 3 and 4, the hose hard head 4 includes a hard head pipe wall 41, a first retraction groove 42, a first retraction spring 43, a first fixture block 44, a return mechanism 45 and a first T-shaped slot 46, the first retraction groove 42 is symmetrically formed on the inner side of the hard head pipe wall 41, one end of the first retraction groove 42 is fixedly connected with the first retraction spring 43, one end of the first retraction spring 43 is fixedly connected with the first fixture block 44, one end of the first fixture block 44 is fixedly connected with the return mechanism 45, the first fixture block 44 is slidably connected with the first retraction groove 42, one end of the hard joint 3 is provided with the coordination groove 31, the first fixture block 44 is in fit and clamping connection with the coordination groove 31, when disassembling, the return mechanism 45 is pressed to enable the return mechanism 45 to pull the first fixture block 44 to release the clamping connection, the first retraction spring 43 is compressed, when assembling, the return mechanism 45 is pressed to enable the return mechanism 45 to pull the first fixture block 44, the retraction spring 43 is compressed, the return mechanism 45 is lowered after the hose hard head 4 and the hard joint are aligned, and the first clamping block 44 is clamped with the coordination groove 31 under the action of the pulling force of the return mechanism 45 and the first retraction spring 43, so that the hard joint 3 and the hose hard head 4 are more convenient to disassemble and assemble.

Referring to fig. 4 and 5, the restoring mechanism 45 includes a first T-shaped slider 451, a restoring spring 452, a fixing nail 453, a sliding steering wheel 454 and a soft steel cable 455, one end of the first T-shaped slot 46 is fixedly connected with the restoring spring 452, one end of the restoring spring 452 is fixedly connected with the first T-shaped slider 451, the surface of the first T-shaped slider 451 is fixedly connected with the fixing nail 453, the surface of the fixing nail 453 is fixedly connected with the soft steel cable 455, one end of the soft steel cable 455 is fixedly connected with a first latch 44, three sliding steering wheels 454 are fixedly connected in the hard head tube wall 41, the sliding steering wheel 454 is slidably connected with the soft steel cable 455, when the first T-shaped slider 451 is pressed down, the first T-shaped slider 451 compresses the restoring spring 452 and pulls the soft steel cable 455, so that the first latch 44 retracts into the first retraction slot 42 and compresses the first retraction spring 43, when the user releases his hand, the return spring 452 pushes the first T-shaped slider 451 to return, the first latch 44 returns under the action of the first retracting spring, and the soft cable 455 is pulled to pull the first T-shaped slider 451 to return, so that the first latch 44 and the first T-shaped slider 451 return more conveniently after being detached.

Referring to fig. 6, 7 and 8, the hard tube 2 includes a tube body wall 21, a second clamping block 22, a second retraction spring 23, a second retraction groove 24, a second T-shaped clamping groove 25, a second T-shaped sliding block 26, a soft iron cable 27 and a pulley 28, the second retraction groove 24 is symmetrically formed on the outer wall of one end of the tube body wall 21, the second retraction spring 23 is fixedly connected to the bottom of the second retraction groove 24, one end of the second retraction spring 23 is fixedly connected to the second clamping block 22, the inner wall of one end of the suction tube 1 of the machine body is provided with a coordination clamping groove 11, the second clamping block 22 is clamped and matched with the coordination clamping groove 11, one end of the second clamping block 22 is fixedly connected to the soft iron cable 27, one end of the soft iron cable 27 is connected to the second T-shaped sliding block 26, the surface of the tube body wall 21 is symmetrically provided with the second T-shaped clamping groove 25, the second T-shaped sliding block 26 is matched and slidably connected to the second T-shaped clamping groove 25, three pulleys 28 are fixedly connected in the pipe body wall 21, and the soft iron cable 27 is connected with the pulleys 28 in a sliding way, when the device is disassembled, the second T-shaped slide block 26 is pulled to drive the soft iron rope 27 to pull the second clamping block 22 to be separated from the clamping groove 11, and compresses the second retractable spring 23, the second retractable spring 23 pushes the second clamping block 22 to reset by releasing the hand, meanwhile, the second T-shaped sliding block 26 is pulled to reset through the soft iron cable 27, the second T-shaped sliding block 26 is pulled to drive the soft iron cable 27 to pull the second clamping block 22 to be separated from the clamping groove 11 during installation, the second retractable spring 23 is compressed, the suction pipe 1 and the hard pipe 2 are aligned and connected into the machine body, the second retractable spring 23 pushes the second clamping block 22 to reset by releasing the hand, meanwhile, the second T-shaped sliding block 26 is pulled to reset through the soft iron cable 27, so that the second clamping block 22 is in matched clamping connection with the clamping groove 11, and the hard tube 2 is more convenient to disassemble.

Referring to fig. 1, 2 and 3, the hard tail 6 of the hose is screwed with the hard joint 3, so that the length of the suction pipe can be adjusted.

The working principle is as follows: when the device is disassembled, the second T-shaped slide block 26 is pulled to drive the soft iron rope 27 to pull the second fixture block 22 to be separated from the clamping groove 11, the second retraction spring 23 is compressed, the hard tube 2 is taken down, the second retraction spring 23 pushes the second fixture block 22 to reset by loosening, meanwhile, the second T-shaped slide block 26 is pulled to reset by the soft iron rope 27, the first T-shaped slide block 451 is pressed down, the soft steel rope 455 pulls the first fixture block 44, the first fixture block 44 is released from clamping with the matching groove 31, the hard joint 3 is taken down, the return spring 452 and the first retraction spring 43 are compressed, the hand is loosened, the first retraction spring 43 pushes the first fixture block 44 to reset, the first T-shaped slide block 451 is pushed by the return spring 452 and pulled by the soft steel rope 455 to reset, the hard joint 3 is rotated to be disengaged from the hard tube 2 by releasing the thread connection, the second T-shaped slide block 26 is pulled to drive the soft iron rope 27 to pull the second fixture block 22 to be separated from the clamping groove 11 during installation, and compress the second retraction spring 23, align the suction pipe 1 and the rigid pipe 2, release the hand to make the second retraction spring 23 push the second latch 22 to reset, pull the second T-shaped slider 26 to reset through the soft iron rope 27, make the second latch 22 match and clamp with the clamping groove 11, align the rigid pipe 2 and the rigid joint 3, rotate the rigid joint 3 to make the rigid joint 3 connect with the rigid pipe 2 by screw thread, press the first T-shaped slider 451, make the soft steel rope 455 pull the first latch 44, make the first latch 44 enter the first retraction groove 42, align and connect the rigid joint 3, and compress the return spring 452 and the first retraction spring 43, release the hand to make the first retraction spring 43 push the first latch 44 to reset and clamp the mating groove 31, the first T-shaped slider 451 resets under the push of the return spring 452 and the pull of the soft steel rope 455, when the suction pipe is not long enough, the rigid tail 6 connects to the rigid straight joint 3 by screw thread, the first T-shaped slider 451 is pressed down, so that the flexible steel cable 455 pulls the first latch 44, the first latch 44 enters the first retraction groove 42, the hard joint 3 is aligned and connected, the return spring 452 and the first retraction spring 43 are compressed, and the hand is released, so that the first retraction spring 43 pushes the first latch 44 to return to the clamping matching groove 31, and the first T-shaped slider 451 returns under the pushing of the return spring 452 and the pulling of the flexible steel cable 455.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an improve draught fan of aspiration channel, includes organism aspiration channel (1), hard pipe (2), stereoplasm joint (3), hose stereoplasm head (4), hose body (5), hose stereoplasm afterbody (6) and draught fan organism (7), its characterized in that: draught fan organism (7) one end fixedly connected with organism aspiration channel (1), organism aspiration channel (1) one end joint has rigid pipe (2), rigid pipe (2) one end threaded connection has stereoplasm joint (3), stereoplasm joint (3) one end joint has hose stereoplasm head (4), hose stereoplasm head (4) fixedly connected with hose body (5), hose body (5) fixedly connected with hose stereoplasm afterbody (6).

2. The induced draft fan with the improved draft tube of claim 1, wherein: hose stereoplasm head (4) include stereoplasm head pipe wall (41), first groove (42), first receive and release spring (43), first fixture block (44), answer mechanism (45) and first T type draw-in groove (46), first groove (42) have been seted up to stereoplasm head pipe wall (41) inboard symmetry, first groove (42) one end fixedly connected with of receiving and releasing first spring (43) of receiving and releasing, first spring (43) one end fixedly connected with first fixture block (44) of receiving and releasing, first fixture block (44) one end fixedly connected with answer mechanism (45), first fixture block (44) and first groove (42) sliding connection that receive and release, allocation groove (31) have been seted up to stereoplasm joint (3) one end, and first fixture block (44) and allocation groove (31) cooperation joint.

3. The induced draft fan with the improved draft tube as claimed in claim 2, wherein: the restoring mechanism (45) comprises a first T-shaped sliding block (451), a restoring spring (452), a fixing nail (453), a sliding steering wheel (454) and a soft steel cable (455), wherein one end of the first T-shaped clamping groove (46) is fixedly connected with the restoring spring (452), one end of the restoring spring (452) is fixedly connected with the first T-shaped sliding block (451), the surface of the first T-shaped sliding block (451) is fixedly connected with the fixing nail (453), the surface of the fixing nail (453) is fixedly connected with the soft steel cable (455), one end of the soft steel cable (455) is fixedly connected with a first clamping block (44), three sliding steering wheels (454) are fixedly connected in the hard head pipe wall (41), and the sliding steering wheels (454) are connected with the soft steel cable (455) in a sliding mode.

4. The induced draft fan with the improved draft tube of claim 1, wherein: the hard pipe comprises a pipe body wall (21), a second clamping block (22), a second retraction spring (23), a second retraction groove (24), a second T-shaped clamping groove (25), a second T-shaped sliding block (26), a soft iron cable (27) and a pulley (28), wherein the second retraction groove (24) is symmetrically formed in the outer wall of one end of the pipe body wall (21), the second retraction spring (23) is fixedly connected to the bottom of the second retraction groove (24), the second clamping block (22) is fixedly connected to one end of the second retraction spring (23), the coordination clamping groove (11) is formed in the inner wall of one end of the machine body air suction pipe (1), the second clamping block (22) is in matched clamping connection with the coordination clamping groove (11), the soft iron cable (27) is fixedly connected to one end of the second clamping block (22), the second T-shaped sliding block (26) is connected to one end of the soft iron cable (27), the second T-shaped clamping groove (25) is symmetrically formed in the surface of the pipe body wall (21), the second T-shaped sliding block (26) is in matched sliding connection with the second T-shaped clamping groove (25), the three pulleys (28) are fixedly connected into the pipe body wall (21), and the soft steel cable (27) is in sliding connection with the pulleys (28).

5. The induced draft fan with the improved draft tube of claim 1, wherein: the hard tail part (6) of the hose is in threaded connection with the hard joint (3).

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