WO2019056687A1 - 一种引风机及其应用的燃气炉 - Google Patents

一种引风机及其应用的燃气炉 Download PDF

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Publication number
WO2019056687A1
WO2019056687A1 PCT/CN2018/074394 CN2018074394W WO2019056687A1 WO 2019056687 A1 WO2019056687 A1 WO 2019056687A1 CN 2018074394 W CN2018074394 W CN 2018074394W WO 2019056687 A1 WO2019056687 A1 WO 2019056687A1
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WO
WIPO (PCT)
Prior art keywords
draft fan
induced draft
lug
block
movable block
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PCT/CN2018/074394
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English (en)
French (fr)
Inventor
林炎虎
雷威
王凤琪
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中山大洋电机股份有限公司
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Publication of WO2019056687A1 publication Critical patent/WO2019056687A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps

Definitions

  • the utility model relates to an induced draft fan and a gas furnace thereof.
  • the existing induced draft fan comprises a volute and a wind wheel installed in the inner cavity of the volute.
  • the wind wheel is driven to rotate by a motor mounted on the volute, and a side of the volute is provided with a circular air outlet pipe communicating with the inner cavity.
  • the air outlet pipe includes an inner pipe and an outer pipe, and the inner pipe is provided with an air outlet communicating with the inner cavity, and an annular groove is formed between the outer pipe and the inner pipe, and the air blower is changed in use during use.
  • a conversion interface is embedded in the annular groove, and a sealing ring is also arranged between the conversion interface and the outer tube.
  • the purpose of the utility model is to provide an air induced draft fan and a gas furnace thereof, which can solve the problem of difficulty in installation between the existing induced draft fan and the conversion interface and the sealing ring.
  • a first object of the present invention is to provide an induced draft fan including a volute and a wind wheel mounted in a volute inner cavity, the wind wheel being coupled to a rotating shaft of a motor and driven to rotate by the rotating shaft, the worm
  • An air outlet pipe is disposed at a side of the casing, the air outlet pipe includes an inner pipe and an outer pipe, and the inner pipe communicates with the inner cavity and forms an air outlet passage of an induced draft fan, the outer pipe surrounding the inner pipe
  • An annular groove is formed between the outer tube and the inner tube, wherein the outer tube is provided with a notch at the outer end, and the outer tube forms a fixing block on the periphery of the notch, and the notch is mounted on the notch.
  • There is a movable block, and the movable block and the fixed block form an annular fixing portion, and the fixed block and the movable block are locked by a fastener.
  • the lower end of the fixing block protrudes from the two ends of the fixing block
  • the upper end of the movable block protrudes from the lower lug with an upper lug
  • the upper lug is mounted on the lower convex
  • a second mounting hole is disposed on the two lower lugs
  • a second mounting hole is disposed on the two upper lugs
  • the fastener includes a screw and a nut, and the screw is mounted on the In the first mounting hole and the second mounting hole, the lower lug and the upper lug are locked by the cooperation of the screw and the nut.
  • the left end of the fixing block has a lower lug protruding from the left end, and the left end of the movable block protrudes from the lower lug with an upper lug, and the right end of the fixing block is engaged or hinged with the right end of the movable block.
  • the upper lug and the lower lug are locked by the fastener.
  • the fastener includes a screw and a nut, the lower lug is provided with a first mounting hole, and the upper lug is provided with a second mounting hole, and the screw is mounted on the first mounting hole and the first In the two mounting holes, the lower lug and the upper lug are locked by the cooperation of the screw and the nut.
  • the right end of the fixed block is hinged to the right end of the movable block, specifically, the right end of the fixed block has a hinged seat, and the hinged seat is provided with a hinge hole, and the right end of the movable block corresponds to the hinge hole
  • a hinge column is protruded from the ground, and the hinge column is sleeved in the hinge hole.
  • the upper lug is provided with an undercut hole adjacent to the second mounting hole, and the lower lug protrudes from the corresponding reverse hole with a buckle, and the buckle includes the lower lug a connecting connecting arm and a hook head mounted on the connecting arm, the connecting arm passing through the inverted button hole, the hook head being fastened on the upper lug.
  • the upper lug is provided with an undercut hole adjacent to the second mounting hole, and the lower lug protrudes from the corresponding reverse hole with a buckle, and the buckle includes the lower lug a connecting connecting arm and a hook head mounted on the connecting arm, the connecting arm passing through the inverted button hole, the hook head being fastened on the upper lug.
  • a first reinforcing rib is disposed between the upper lug and the movable block, and a second reinforcing rib is disposed between the lower lug and the fixed block.
  • the outer tube has at least one drainage hole at the bottom of the annular groove, and a drainage pipe protrudes from the outer side of the drainage hole.
  • a second object of the present invention is to provide a gas furnace comprising an induced draft fan and a conversion interface, wherein the conversion interface is mounted on an air outlet pipe of the induced draft fan, wherein the induced draft fan is as described above
  • An air inlet fan the conversion interface is embedded in the annular groove, and a sealing ring is further disposed between the conversion interface and the outer tube, and the sealing ring is in the annular fixing portion, the tight Firming the fixed block and the movable block against the sealing ring
  • the outer end of the outer tube is provided with a notch, the outer tube forms a fixed block on the periphery of the notch, and the movable block is mounted on the notch, and the movable block and the fixed block enclose an annular fixing portion.
  • the gap facilitates the insertion of the conversion interface and the sealing ring, and the induced draft fan has a simple structure and low cost;
  • the left end of the fixing block has a lower lug, and the left end of the movable block protrudes from the lower lug with an upper lug, and the right end of the fixed block is engaged with the right end of the movable block or Hinged, the upper lug and the lower lug are locked by the screw and the nut, and the movable block is snapped or hinged on the fixing block, and the installation is simpler;
  • the upper lug is provided with an undercut hole adjacent to the second mounting hole, and the lower lug protrudes correspondingly with the buckle, and the buckle includes a connection with the lower lug a connecting arm and a hook head mounted on the connecting arm, the connecting arm passes through the reverse buckle hole, and the hook head is fastened on the upper lug to facilitate installation of the screw and the nut;
  • the outer tube is provided with at least one drainage hole at the bottom of the annular groove, and a drainage pipe protrudes outside the drainage hole, and the drainage hole facilitates the discharge of the condensed water.
  • the conversion interface and the sealing ring may be inserted into the annular groove before the movable block is installed, and the conversion interface and the sealing ring are installed conveniently and quickly, and the screw and the nut cooperate to form the ring
  • the fixing portion is pressed on the sealing ring to strengthen the sealing effect between the outer tube, the sealing ring and the conversion interface.
  • FIG. 1 is a perspective view of an induced draft fan according to Embodiment 1 of the present invention.
  • Embodiment 2 is an exploded view of an induced draft fan provided in Embodiment 1 of the present invention.
  • Figure 3 is an enlarged view of A of Figure 2;
  • Embodiment 4 is a perspective view of an induced draft fan provided in Embodiment 2 of the present invention.
  • Figure 5 is an exploded view of the induced draft fan provided in the second embodiment of the present invention.
  • Figure 6 is an enlarged view of B of Figure 5;
  • Figure 7 is a front elevational view of the induced draft fan provided in the third embodiment of the present invention.
  • Figure 8 is a cross-sectional view taken along line C-C of Figure 7;
  • FIG. 9 is a schematic structural view of a gas furnace provided in Embodiment 4 of the present invention after the connection between the induced draft fan and the conversion interface;
  • Figure 10 is a cross-sectional view showing the connection between the induced draft fan and the conversion interface in the gas furnace provided in the fourth embodiment of the present invention.
  • Fig. 11 is an enlarged view of a portion D of Fig. 10.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the present embodiment provides an induced draft fan including a volute 1 and a wind wheel 4 mounted in the inner cavity 19 of the volute 1.
  • the wind wheel 4 is coupled to a rotating shaft of a motor and Rotating by the rotating shaft, the motor is installed in the inner cavity 19 or outside the inner cavity 19.
  • the side of the volute 1 is provided with an air outlet pipe 10, and the air outlet pipe 10 includes an inner pipe 11 and An outer tube 12, the inner tube 11 is in communication with the inner chamber 19 and forms an air outlet passage 111 of an induced draft fan, the outer tube 12 surrounding the inner tube 11, the outer tube 12 and the inner tube 11 An annular groove 13 is formed, and the outer tube 12 is provided with a notch 121 at the outer end of the outer tube 12, and the outer tube 12 forms a fixed block 120 around the notch 121.
  • the movable block 122 is mounted on the notch 121.
  • the movable block 122 and the fixed block 120 enclose an annular fixing portion 14 , and the fixed block 120 and the movable block 122 are locked by fasteners.
  • the notch 127 facilitates the installation of the conversion interface 2 and the sealing ring 3, and is simple and low in cost.
  • a lower lug 123 is protruded from the two ends of the fixing block 120.
  • the upper end of the movable block 122 has an upper lug 124 corresponding to the lower lug 123.
  • the upper lug 124 Mounted on the lower lug 123, the two lower lugs 123 are respectively provided with a first mounting hole 1231, and the two upper lugs 124 are respectively provided with a second mounting hole 1241, the fastening
  • the member includes a screw 51 and a nut 52 installed in the first mounting hole 1231 and the second mounting hole 1241, and the lower lug 123 and the upper lug 124 pass the screw 51 and the The mating of the nut 52 is locked. The screw 51 and the nut 52 are easily installed.
  • a first reinforcing rib 1242 is disposed between the upper lug 124 and the movable block 122, and a second reinforcing rib 1232 is disposed between the lower lug 123 and the fixed block 120.
  • the first stiffener 1242 and the second stiffener 1232 enhance the robustness of the upper lug 124 and the lower lug 123.
  • the outer tube 12 is provided with at least one drainage hole 128 at the bottom of the annular groove 13 , and the drainage hole 128 protrudes from the drainage tube 129 .
  • the drain hole 128 facilitates the discharge of condensed water.
  • the induced draft fan of the embodiment has a simple structure, and the conversion interface and the sealing ring are convenient to install.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the induced draft fan provided in this embodiment is similar to the induced draft fan in the first embodiment, and the difference is:
  • the lower end of the fixed block 120 has a lower lug 123.
  • the left end of the movable block 122 protrudes from the lower lug 123 with an upper lug 124.
  • the right end of the fixed block 120 and the movable block The right end of 122 is snapped or hinged, and the upper lug 124 and the lower lug 123 are locked by the fastener.
  • the right end of the movable block 122 is snapped or hinged on the fixed block 120, which makes the installation of the movable block 122 simpler.
  • the fastener includes a screw 51 and a nut 52.
  • the lower lug 123 is provided with a first mounting hole 1231
  • the upper lug 124 is provided with a second mounting hole 1241.
  • the lower lug 123 and the upper lug 124 are locked by the cooperation of the screw 51 and the nut 52.
  • the right end of the fixed block 120 is hinged to the right end of the movable block 122.
  • the right end of the fixed block 120 has a hinged seat 125.
  • the hinged seat 125 is provided with a hinge hole 1251, and the right end of the movable block 122
  • a hinge post 1221 is protruded corresponding to the hinge hole 1251, and the hinge post 1221 is sleeved in the hinge hole 1251.
  • the upper lug 124 is provided with an undercut hole 1243 adjacent to the second mounting hole 1241.
  • the lower lug 123 protrudes from the reverse hole 1243 and has a buckle 126.
  • the buckle 126 A connecting arm 1261 connected to the lower lug 123 and a hook 1262 mounted on the connecting arm 1261, the connecting arm 1261 passing through the undercut hole 1243, the hook head 1262 being fastened to the upper convex On the ear 124.
  • One side wall of the inverted button hole 1243 is disposed obliquely outward.
  • the induced draft fan of the embodiment is convenient to assemble.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the induced draft fan provided in this embodiment is similar to the induced draft fan in the second embodiment, and the difference is:
  • the right end of the fixed block 120 is engaged with the right end of the movable block 122. Specifically, the right end of the fixed block 120 protrudes from the connecting block 127, and the connecting block is provided with a card slot 1271, and the movable block A buckle block 1222 protrudes from the right end of the slot 122 corresponding to the card slot 1271, and the card block 1222 is caught in the card slot 1271.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the present embodiment provides a gas furnace including an induced draft fan and a conversion interface 2 , and the conversion interface 2 is mounted on the air outlet pipe 10 of the induced draft fan, and is characterized in that:
  • the induced draft fan is the induced draft fan according to the first embodiment or the second embodiment or the third embodiment.
  • the conversion interface 2 is embedded in the annular groove 13 , and the conversion interface 2 and the outer tube 12 are A sealing ring 3 is also provided between the sealing ring 3 in the annular fixing portion 14, and the fastener presses the fixing block 120 and the movable block 122 against the sealing ring.
  • the conversion interface 2 and the sealing ring 3 are first inserted into the annular groove 13 and then the movable block 122 is installed.
  • the conversion interface 2 and the sealing ring 3 are conveniently and quickly installed.
  • Cooperating with the nut 52 presses the annular fixing portion 14 against the sealing ring 3, reinforcing the sealing effect between the outer tube 12, the sealing ring 3 and the conversion interface 2.
  • a discharge chamber 131 is formed between the inner wall of the conversion interface 2 and the inner tube 11 , and the discharge chamber 131 is in communication with the air outlet passage 111.
  • the drain hole 128 is in communication with the discharge chamber 131.

Abstract

一种引风机及其应用的燃气炉。该引风机包括蜗壳（1）和安装在蜗壳（1）内腔（19）的风轮（4），风轮（4）与电机的转轴连接并由转轴带动转动。蜗壳（1）的侧部设有出风管（10），出风管（10）包括内管（11）和外管（12）。内管（11）与内腔（19）连通并形成引风机的出风通道（111）。外管（12）包围内管（11），外管（12）与内管（11）之间形成环状凹槽（13）。外管（12）的外端设有缺口（121），外管（12）在缺口（121）外围形成固定块（120），缺口（121）上安装有活动块（122），活动块（122）与固定块（120）围成环形固定部（14），固定块（120）与活动块（122）之间通过紧固件锁紧。该引风机结构简单，燃气炉的转换接口和密封圈安装方便。

Description

一种引风机及其应用的燃气炉 技术领域：
本实用新型涉及一种引风机及其应用的燃气炉。
背景技术：
现有的引风机包括蜗壳和安装在蜗壳内腔的风轮，风轮由安装在蜗壳上的电机带动转动，蜗壳的侧部设有与内腔连通的圆形出风管，出风管包括内管和外管，内管设有与所述内腔连通的出风口，所述外管与所述内管之间形成环状凹槽，在使用过程中为了改变引风机的出风方向，所述环状凹槽内会嵌装有转换接口，转换接口与外管之间还套有密封圈。现有的引风机结构，转换接口和密封圈套入环状凹槽内比较困难。
发明内容：
本实用新型的目的是提供一种引风机及其应用的燃气炉，能解决现有引风机与转换接口和密封圈之间安装困难的问题。
本实用新型的目的是通过下述技术方案予以实现的。
本实用新型的第一个目的是提供一种引风机，包括蜗壳和安装在蜗壳内腔的风轮，所述风轮与一电机的转轴连接并由所述转轴带动转动，所述蜗壳的侧部设有出风管，所述出风管包括内管和外管，所述内管与所述内腔连通并形成引风机的出风通道，所述外管包围所述内管，所述外管与所述内管之间形成环状凹槽，其特征在于：所述外管外端设有缺口，所述外管于所述缺口外围形成固定块，所述缺口上安装有活动块，所述活动块与所述固定块围成一环形固定部,所述固定块与所述活动块之间通过紧固件锁紧。
上述所述固定块周向两端凸出有下凸耳，所述活动块周向两端与所述下凸耳对应地凸出有上凸耳，所述上凸耳安装在所述下凸耳上，两个所述下凸耳上均设有第一安装孔，两个所述上凸耳上均设有第二安装孔，所述紧固件包括螺丝和螺母，所述螺丝安装在所述第一安装孔和第二安装孔内，所述下凸耳和所述上凸耳通过所述螺丝与所述螺母的配合锁紧。
上述所述固定块左端凸出有下凸耳，所述活动块左端与所述下凸耳对应地凸出有上凸耳，所述固定块的右端与所述活动块的右端卡接或铰接，所述上凸耳和所述下凸耳通过所述紧固件锁紧。
上述所述紧固件包括螺丝和螺母，所述下凸耳上设有第一安装孔，所述上凸耳上设有第二安装孔，所述螺丝安装在所述第一安装孔和第二安装孔内，所述下凸耳和所述上凸耳通过所述螺丝与所述螺母的配合锁紧。
上述所述固定块的右端与所述活动块的右端铰接，具体为所述固定块的右端凸出有铰接座，铰接座上设有铰接孔，所述活动块的右端与所述铰接孔对应地凸出有铰接柱，所述铰接柱套在所述铰接孔内。
上述所述上凸耳于所述第二安装孔旁设有倒扣孔，所述下凸耳于所述倒扣孔对应的凸出有卡扣，所述卡扣包括与所述下凸耳连接的连接臂以及安装在连接臂上的钩头，所述连接臂穿过所述倒扣孔，所述钩头扣在所述上凸耳上。
上述所述上凸耳于所述第二安装孔旁设有倒扣孔，所述下凸耳于所述倒扣孔对应的凸出有卡扣，所述卡扣包括与所述下凸耳连接的连接臂以及安装在连接臂上的钩头，所述连接臂穿过所述倒扣孔，所述钩头扣在所述上凸耳上。
上述所述上凸耳与所述活动块之间设有第一加强筋，所述下凸耳与所述固定块之间设有第二加强筋。
上述所述外管于所述环状凹槽底部设有至少一个排水孔，所述排水孔外凸出有排水管。
本实用新型的第二个目的是提供一种燃气炉，包括引风机和转换接口，所述转换接口安装在所述引风机的出风管上，其特征在于：所述引风机为上述所述的引风机，所述转换接口嵌装在所述环状凹槽内，所述转换接口与所述外管之间还设有密封圈，所述密封圈于所述环形固定部内，所述紧固件将固定块与所述活动块压在所述密封圈上
本实用新型与现有技术相比，具有如下效果：
1)所述外管外端设有缺口，所述外管于所述缺口外围形成固定块，所述缺 口上安装有活动块，所述活动块与所述固定块围成一环形固定部，所述缺口方便转换接口和密封圈的插入，所述引风机结构简单、成本低；
2)所述固定块周向两端凸出有下凸耳，所述活动块周向两端与所述下凸耳对应地凸出有上凸耳，所述上凸耳和所述下凸耳通过所述螺丝和螺母锁紧，固定块的安装固定方便；
3)所述固定块左端凸出有下凸耳，所述活动块左端与所述下凸耳对应地凸出有上凸耳，所述固定块的右端与所述活动块的右端卡接或铰接，所述上凸耳和所述下凸耳通过所述螺丝和螺母锁紧，活动块卡接或铰接在固定块上，安装更简单；
4)上凸耳于所述第二安装孔旁设有倒扣孔，所述下凸耳于所述倒扣孔对应的凸出有卡扣，所述卡扣包括与所述下凸耳连接的连接臂以及安装在连接臂上的钩头，所述连接臂穿过所述倒扣孔，所述钩头扣在所述上凸耳上，方便螺丝与螺母的安装；
5)第一加强筋和第二加强筋加强了上凸耳和下凸耳的坚固性；
6)所述外管于所述环状凹槽底部设有至少一个排水孔，所述排水孔外凸出有排水管，排水孔方便冷凝水的排出。
7)所述燃气炉中，可先将转换接口和密封圈套入环形凹槽内后再安装所述活动块，转换接口和密封圈安装方便快捷，所述螺丝和所述螺母配合将所述环形固定部压在所述密封圈上，加强了外管、密封圈与转换接口之间的密封效果。
附图说明：
图1是本实用新型实施例一提供的引风机的立体图；
图2是本实用新型实施例一提供的引风机的爆炸图；
图3是图2的A处放大图；
图4是本实用新型实施例二提供的引风机的立体图；
图5是本实用新型实施例二提供的引风机的爆炸图；
图6是图5的B处放大图；
图7是本实用新型实施例三提供的引风机的正视图；
图8是图7的C-C剖视图；
图9是本实用新型实施例四提供的燃气炉中，引风机与转换接口的连接后的结构示意图；
图10是本实用新型实施例四提供的燃气炉中，引风机与转换接口的连接后的剖视图；
图11是图10的D处放大图。
具体实施方式：
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
实施例一：
如图1至图3所示，本实施例提供的是一种引风机，包括蜗壳1和安装在蜗壳1内腔19的风轮4，所述风轮4与一电机的转轴连接并由所述转轴带动转动，所述电机安装在所述内腔19内或内腔19外，所述蜗壳1的侧部设有出风管10，所述出风管10包括内管11和外管12，所述内管11与所述内腔19连通并形成引风机的出风通道111，所述外管12包围所述内管11，所述外管12与所述内管11之间形成环状凹槽13，其特征在于：所述外管12外端设有缺口121，所述外管12于所述缺口121外围形成固定块120，所述缺口121上安装有活动块122，所述活动块122与所述固定块120围成一环形固定部14,所述固定块120与所述活动块122之间通过紧固件锁紧。
本实施例所述引风机，所述缺口127方便了转换接口2和密封圈3的安装，简单、成本低。
上述所述固定块120周向两端凸出有下凸耳123，所述活动块122周向两端与所述下凸耳123对应地凸出有上凸耳124，所述上凸耳124安装在所述下凸耳123上，两个所述下凸耳123上均设有第一安装孔1231，两个所述上凸耳124上均设有第二安装孔1241，所述紧固件包括螺丝51和螺母52，所述螺丝51安装在所述第一安装孔1231和第二安装孔1241内，所述下凸耳123和所述上凸 耳124通过所述螺丝51与所述螺母52的配合锁紧。螺丝51和螺母52的安装方便。
上述所述上凸耳124与所述活动块122之间设有第一加强筋1242，所述下凸耳123与所述固定块120之间设有第二加强筋1232。第一加强筋1242和第二加强筋1232加强了上凸耳124和下凸耳123的坚固性。
上述所述外管12于所述环状凹槽13底部设有至少一个排水孔128，所述排水孔128外凸出有排水管129。排水孔128方便冷凝水的排出。
本实施例所述引风机结构简单，所述转换接口和密封圈安装方便。
实施例二：
如图4至图6所示，本实施例提供的引风机与实施例一所述引风机类似，不同之处在于：
上述所述固定块120左端凸出有下凸耳123，所述活动块122左端与所述下凸耳123对应地凸出有上凸耳124，所述固定块120的右端与所述活动块122的右端卡接或铰接，所述上凸耳124和所述下凸耳123通过所述紧固件锁紧。所述活动块122右端卡接或铰接在固定块120上，使活动块122的安装更简单。
上述所述紧固件包括螺丝51和螺母52，所述下凸耳123上设有第一安装孔1231，所述上凸耳124上设有第二安装孔1241，所述螺丝51安装在所述第一安装孔1231和第二安装孔1241内，所述下凸耳123和所述上凸耳124通过所述螺丝51与所述螺母52的配合锁紧。
所述固定块120的右端与所述活动块122的右端铰接，具体为所述固定块120的右端凸出有铰接座125，铰接座125上设有铰接孔1251，所述活动块122的右端与所述铰接孔1251对应地凸出有铰接柱1221，所述铰接柱1221套在所述铰接孔1251内。
上述所述上凸耳124于所述第二安装孔1241旁设有倒扣孔1243，所述下凸耳123于所述倒扣孔1243对应的凸出有卡扣126，所述卡扣126包括与所述下凸耳123连接的连接臂1261以及安装在连接臂1261上的钩头1262，所述连接 臂1261穿过所述倒扣孔1243，所述钩头1262扣在所述上凸耳124上。
所述倒扣孔1243的一个侧壁倾斜向外设置。
本实施例所述引风机组装方便。
实施例三：
如图7至图8所示，本实施例提供的引风机与实施例二所述引风机类似，不同之处在于：
上述所述固定块120的右端与所述活动块122的右端卡接，具体为所述固定块120的右端凸出有连接块127，连接块上设有卡槽1271，所述所述活动块122的右端与所述卡槽1271对应地凸出有扣块1222，所述卡块1222卡在所述卡槽1271内。
实施例四：
如图9至图11所示，本实施例提供的是一种燃气炉，包括引风机和转换接口2，所述转换接口2安装在所述引风机的出风管10上，其特征在于：所述引风机为实施例一或实施例二或实施例三所述的引风机，所述转换接口2嵌装在所述环状凹槽13内，所述转换接口2与所述外管12之间还设有密封圈3，所述密封圈3位于所述环形固定部14内，所述紧固件将固定块120与所述活动块122压在所述密封圈上。
本实施例所述燃气炉中，可先将转换接口2和密封圈3套入环形凹槽13内后再安装所述活动块122，转换接口2和密封圈3安装方便快捷，所述螺丝51和所述螺母52配合将所述环形固定部14压在所述密封圈3上，加强了外管12、密封圈3与转换接口2之间的密封效果。
上述所述转换接口2套入所述环状凹槽13后，所述转换接口2内壁与所述内管11之间形成排放腔131，排放腔131与所述出风通道111连通，所述排水孔128与所述排放腔131连通，引风机工作时，所述风轮4转动形成气流，所述气流从所述内腔19通过所述出风通道111流出至所述转换接口2，气流中的水汽逐渐冷却变成冷凝水，冷凝水从所述排放腔131流进所述排水孔128中， 并通过排水管129排出到引风机外。
以上实施例为本发明的较佳实施方式，但本发明的实施方式不限于此，其他任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均为等效的置换方式，都包含在本发明的保护范围之内。

Claims (10)

  1. 一种引风机，包括蜗壳(1)和安装在蜗壳(1)内腔(19)的风轮(4)，所述风轮(4)与一电机的转轴连接并由所述转轴带动转动，所述蜗壳(1)的侧部设有出风管(10)，所述出风管(10)包括内管(11)和外管(12)，所述内管(11)与所述内腔(19)连通并形成引风机的出风通道(111)，所述外管(12)包围所述内管(11)，所述外管(12)与所述内管(11)之间形成环状凹槽(13)，其特征在于：所述外管(12)外端设有缺口(121)，所述外管(12)于所述缺口(121)外围形成固定块(120)，所述缺口(121)上安装有活动块(122)，所述活动块(122)与所述固定块(120)围成一环形固定部(14),所述固定块(120)与所述活动块(122)之间通过紧固件锁紧。
  2. 根据权利要求1所述的一种引风机，其特征在于：所述固定块(120)周向两端凸出有下凸耳(123)，所述活动块(122)周向两端与所述下凸耳(123)对应地凸出有上凸耳(124)，所述上凸耳(124)安装在所述下凸耳(123)上，两个所述下凸耳(123)上均设有第一安装孔(1231)，两个所述上凸耳(124)上均设有第二安装孔(1241)，所述紧固件包括螺丝(51)和螺母(52)，所述螺丝(51)安装在所述第一安装孔(1231)和第二安装孔(1241)内，所述下凸耳(123)和所述上凸耳(124)通过所述螺丝(51)与所述螺母(52)的配合锁紧。
  3. 根据权利要求1所述的一种引风机，其特征在于：所述固定块(120)左端凸出有下凸耳(123)，所述活动块(122)左端与所述下凸耳(123)对应地凸出有上凸耳(124)，所述固定块(120)的右端与所述活动块(122)的右端卡接或铰接，所述上凸耳(124)和所述下凸耳(123)通过所述紧固件锁紧。
  4. 根据权利要求3所述的一种引风机，其特征在于：所述紧固件包括螺丝(51)和螺母(52)，所述下凸耳(123)上设有第一安装孔(1231)，所述上凸耳(124)上设有第二安装孔(1241)，所述螺丝(51)安装在所述第一安装孔(1231)和第二安装孔(1241)内，所述下凸耳(123)和所述上凸耳(124) 通过所述螺丝(51)与所述螺母(52)的配合锁紧。
  5. 根据权利要求4所述的一种引风机，其特征在于：所述固定块(120)的右端与所述活动块(122)的右端铰接，具体为所述固定块(120)的右端凸出有铰接座(125)，铰接座(125)上设有铰接孔(1251)，所述活动块(122)的右端与所述铰接孔(1251)对应地凸出有铰接柱(1221)，所述铰接柱(1221)套在所述铰接孔(1251)内。
  6. 根据权利要求5所述的一种引风机，其特征在于：所述上凸耳(124)于所述第二安装孔(1241)旁设有倒扣孔(1243)，所述下凸耳(123)于所述倒扣孔(1243)对应的凸出有卡扣(126)，所述卡扣(126)包括与所述下凸耳(123)连接的连接臂(1261)以及安装在连接臂(1261)上的钩头(1262)，所述连接臂(1261)穿过所述倒扣孔(1243)，所述钩头(1262)扣在所述上凸耳(124)上。
  7. 根据权利要求4所述的一种引风机，其特征在于：所述固定块(120)的右端与所述活动块(122)的右端卡接，具体为所述固定块(120)的右端凸出有连接块(127)，连接块上设有卡槽(1271)，所述所述活动块(122)的右端与所述卡槽(1271)对应地凸出有扣块(1222)，所述卡块(1222)卡在所述卡槽(1271)内。
  8. 根据权利要求2至7中任意一项所述的一种引风机，其特征在于：所述上凸耳(124)与所述活动块(122)之间设有第一加强筋(1242)，所述下凸耳(123)与所述固定块(120)之间设有第二加强筋(1232)。
  9. 根据权利要求8所述的一种引风机，其特征在于：所述外管(12)于所述环状凹槽(13)底部设有至少一个排水孔(128)，所述排水孔(128)外凸出有排水管(129)。
  10. 一种燃气炉，包括引风机和转换接口(2)，所述转换接口安装在所述引风机的出风管(10)上，其特征在于：所述引风机为权利要求1至9中任意一项所述的引风机，所述转换接口(2)嵌装在所述环状凹槽(13)内，所述转 换接口(2)与所述外管(12)之间还设有密封圈(3)，所述密封圈(3)位于所述环形固定部(14)内，所述紧固件将固定块(120)与所述活动块(122)压在所述密封圈上。
PCT/CN2018/074394 2017-09-20 2018-01-28 一种引风机及其应用的燃气炉 WO2019056687A1 (zh)

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