WO2023230848A1 - Anti-falling high-stability centrifugal pump - Google Patents

Anti-falling high-stability centrifugal pump Download PDF

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Publication number
WO2023230848A1
WO2023230848A1 PCT/CN2022/096266 CN2022096266W WO2023230848A1 WO 2023230848 A1 WO2023230848 A1 WO 2023230848A1 CN 2022096266 W CN2022096266 W CN 2022096266W WO 2023230848 A1 WO2023230848 A1 WO 2023230848A1
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Prior art keywords
centrifugal pump
filtering
input end
annular
frame
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PCT/CN2022/096266
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French (fr)
Chinese (zh)
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高育志
高洁
高悦
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台州三鹰泵业有限公司
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Priority to PCT/CN2022/096266 priority Critical patent/WO2023230848A1/en
Publication of WO2023230848A1 publication Critical patent/WO2023230848A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning

Definitions

  • the utility model belongs to the technical field of water pumps and relates to a centrifugal pump, in particular to a detachment-proof and highly stable centrifugal pump.
  • the centrifugal pump is designed based on the principle of centrifugal force.
  • the high-speed rotating impeller blades drive the water to rotate and throw the water out, thereby achieving the purpose of transportation. Since traditional centrifugal pumps do not have a structure to filter the water, the water contains a large amount of impurities. The impurities may damage the impeller and cause wear of the centrifugal pump parts.
  • the input end of the centrifugal pump is equipped with a layer of filter screen with a simple structure. Although it can achieve a certain filtration effect, the filter screen structure is simple to set up and install. It is easy to fall off under the pressure of the water flow, so it will still affect the filtration. Effect.
  • This utility model is to provide a high-stable centrifugal pump with a stable filtration structure, a filter structure that is not easy to fall off, and good filtration effect to prevent the above-mentioned problems existing in the prior art.
  • a high-stable centrifugal pump that prevents detachment and includes a pump body with an input end. It is characterized in that a filtering device with a filtering function is provided in the input end.
  • the filtering device consists of several filter screens arranged at intervals before and after and a frame for fixing the above-mentioned filter screen. Several of the filter screens are integrally connected to the frame.
  • the input end is provided with a device for compressing and limiting the frame.
  • the inner peripheral wall of the input end has a radial abutment step for the inner end of the limit sleeve to limit and resist, and the inner end of the limit sleeve extends axially toward the frame direction to form a positioning ring, and the There is a gap between the positioning ring and the radial abutment step, the outer end of the frame has an extension ring extending toward the inside of the gap, and the inner end of the limit sleeve has an outer A convex convex ring, the outer end surface of the convex ring is provided with an annular groove, and the end of the radially abutting step has a radially outward protruding annular ring that extends into the annular groove and engages with the annular groove.
  • the latching protrusion has an annular abutment portion on the peripheral wall of the outer end of the extension ring that abuts against the inner wall of the convex ring.
  • a abutment spring is provided between the annular abutment portion and the radial abutment step.
  • the input end A flange is fixed externally, and the inner end of the flange extends into the port of the input end and abuts against the limit sleeve.
  • the longitudinal section of the annular groove is a horizontal straight section, a curved section and an inclined section from the inside to the outside, and the longitudinal section of the annular protrusion is from the outside to the inside.
  • the outer wall of the annular convex is wrapped with a layer of elastic elastic wrapping layer.
  • the inner peripheral wall of the limiting sleeve near its outer end has a detachment opening.
  • Installing a filter device can filter the water flow to prevent impurities from entering the pump body and causing collision and wear of the parts in the pump body.
  • the filter device has a multi-layer filter screen, which greatly improves the filtering effect;
  • Figure 1 is a schematic view of the front structure of this anti-falling, highly stable centrifugal pump.
  • Figure 2 is a partial cross-sectional structural diagram of the input end.
  • Figure 3 is an enlarged structural diagram of Figure 2 at point A.
  • the anti-falling high and stable centrifugal pump includes a pump body 2 with an input end 1.
  • a filtering device with a filtering function is provided in the input end 1.
  • the filtering device is composed of several front and rear intervals.
  • the filter 3 and a frame 4 used to fix the above filter 3, several filters 3 are integrally connected in the frame 4,
  • the input end 1 is provided with a limit sleeve 5 to compress the frame 4, input
  • the inner peripheral wall of the end 1 has a radial abutment step 6 for the inner end of the limit sleeve 5 to limit and abut.
  • the inner end of the limit sleeve 5 extends axially toward the frame 4 to form a positioning ring 7.
  • the positioning ring 7 is connected with the radial end. There is a space between the radial abutment steps 6.
  • the outer end of the frame 4 has an extension ring 8 extending toward the inside of the space.
  • the inner end of the limiting sleeve 5 has an outwardly protruding convex ring 9 between the radial abutment steps 6.
  • the outer end surface of the convex ring 9 is opened and has an annular groove 10, and the end radially abutting the step 6 has a radially outward protruding annular protrusion 11 that extends into the annular groove 10 and engages with the annular groove 10,
  • the outer end peripheral wall of the extension ring 8 has an annular abutment portion 12 that abuts against the inner wall of the convex ring 9.
  • an abutment spring is provided between the annular abutment portion 12 and the radial abutment step 6. 13.
  • the input end 1 is fixedly connected with a flange 14.
  • the inner end of the flange 14 extends into the port of the input end 1 and abuts against the limit sleeve 5.
  • the abutment spring 13 is placed outside the extension ring 8 and One end and the end of the annular abutment part 12, the frame 4 slides into the limit sleeve 5 and the annular abutment part 12 enters between the convex ring 9 and the positioning ring 7.
  • the longitudinal section of the annular groove 10 is divided into a horizontal straight section, a curved section and an inclined section from the inside to the outside.
  • the longitudinal section of the annular protrusion 11 is a transverse straight section from the outside to the inside. 15.
  • the arc portion 16 and the inclined portion 17, the outer wall of the annular protrusion 11 is wrapped with a layer of elastic elastic wrapping layer, and the annular protrusion 11 is engaged in the annular groove 10.
  • the elastic wrapping layer Due to the arrangement of the elastic wrapping layer, it is During the process, the horizontal straight part 15, the arcuate part 16 and the inclined part 17 are respectively stuck into the horizontal straight section, the curved surface section and the inclined section under the action of elastic deformation to achieve a fixed effect, which can effectively prevent the positioning of the limit sleeve 5.
  • the skeleton 4 falls off.
  • the inner peripheral wall of the limit sleeve 5 near its outer end has an escape opening 18.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present utility model relates to the technical field of water pumps, and provides an anti-falling high-stability centrifugal pump. The present utility model solves the problem that an existing centrifugal pump filtering structure is easy to install and easy to fall off, thus affecting the filtering effect. The present anti-falling high-stability centrifugal pump comprises a pump body having an input end; the input end is internally provided with a filtering device having a filtering function; the filtering device consists of a plurality of filtering screens arranged at intervals forward and backward and a framework used for fixing the filtering screens; the plurality of filtering screens are integrally connected in the framework; the input end is internally provided with a limiting sleeve for pressing and limiting the framework; the inner peripheral wall of the input end is provided with a radial abutting step for limiting and abutting of the inner end of the limiting sleeve; the inner end of the limiting sleeve axially extends towards the framework to form a positioning ring; a gap is provided between the positioning ring and the radial abutting step. The present utility model has the advantages that the filtering structure is stable, the filtering structure is not easy to fall off, and the filtering effect is good.

Description

一种防脱高稳定离心泵A kind of anti-falling and high-stable centrifugal pump 技术领域Technical field
本实用新型属于水泵技术领域，涉及一种离心泵，特别涉及一种防脱高稳定离心泵。The utility model belongs to the technical field of water pumps and relates to a centrifugal pump, in particular to a detachment-proof and highly stable centrifugal pump.
背景技术Background technique
离心泵就是根据离心力原理设计的，高速旋转的叶轮叶片带动水转动，将水甩出，从而达到输送的目的。传统离心泵由于没有设置对水进行过滤的结构，使水中含有大量杂质，杂质可能会损坏叶轮，造成离心泵零部件的磨损。而目前离心泵的输入端处设置有一层简单结构的过滤网，虽然能达到一定的过滤效果，但是该过滤网结构设置简单，安装结构简单，容易在水流的冲压下脱落，因此还是会影响过滤效果。The centrifugal pump is designed based on the principle of centrifugal force. The high-speed rotating impeller blades drive the water to rotate and throw the water out, thereby achieving the purpose of transportation. Since traditional centrifugal pumps do not have a structure to filter the water, the water contains a large amount of impurities. The impurities may damage the impeller and cause wear of the centrifugal pump parts. At present, the input end of the centrifugal pump is equipped with a layer of filter screen with a simple structure. Although it can achieve a certain filtration effect, the filter screen structure is simple to set up and install. It is easy to fall off under the pressure of the water flow, so it will still affect the filtration. Effect.
发明内容Contents of the invention
本实用新型的目的是针对现有技术中存在的上述问题，提供了一种过滤结构稳定、过滤结构不易脱落且过滤效果好的防脱高稳定离心泵。The purpose of this utility model is to provide a high-stable centrifugal pump with a stable filtration structure, a filter structure that is not easy to fall off, and good filtration effect to prevent the above-mentioned problems existing in the prior art.
本实用新型的目的可通过下列技术方案来实现：一种防脱高稳定离心泵，包括具有输入端的泵体，其特征在于，所述的输入端内设置具有过滤功能的过滤装置，所述的过滤装置由若干个前后间隔设置的滤网和一个用于固定上述滤网的骨架，若干个所述滤网一体连接于骨架内，所述的输入端内设有对骨架进行压紧限位的限位套，所述输入端的内周壁上具有供限位套内端限位抵靠的径向抵靠台阶，所述的限位套内端朝骨架方向轴向延伸形成有定位环，所述的定位环与径向抵靠台阶之间具有间隔，所述的骨架外端具有朝间隔内部延伸的延伸环，所述限位套的内端部上且与径向抵靠台阶之间具有外凸的凸环，所述的凸环外端面开设和有环形凹槽，所述径向抵靠台阶的端部具有径向外凸且伸入环形凹槽内与环形凹槽相卡接的环形卡凸，所述延伸环外端周壁上具有与凸环内壁相抵靠的环形抵靠部，所述的环形抵靠部与径向抵靠台阶之间设有抵靠弹簧，所述的输入端固定外接有法兰，所述的法兰内端伸入输入端的端口内并抵靠于限位套上。The purpose of the present utility model can be achieved through the following technical solutions: a high-stable centrifugal pump that prevents detachment and includes a pump body with an input end. It is characterized in that a filtering device with a filtering function is provided in the input end. The filtering device consists of several filter screens arranged at intervals before and after and a frame for fixing the above-mentioned filter screen. Several of the filter screens are integrally connected to the frame. The input end is provided with a device for compressing and limiting the frame. Limit sleeve, the inner peripheral wall of the input end has a radial abutment step for the inner end of the limit sleeve to limit and resist, and the inner end of the limit sleeve extends axially toward the frame direction to form a positioning ring, and the There is a gap between the positioning ring and the radial abutment step, the outer end of the frame has an extension ring extending toward the inside of the gap, and the inner end of the limit sleeve has an outer A convex convex ring, the outer end surface of the convex ring is provided with an annular groove, and the end of the radially abutting step has a radially outward protruding annular ring that extends into the annular groove and engages with the annular groove. The latching protrusion has an annular abutment portion on the peripheral wall of the outer end of the extension ring that abuts against the inner wall of the convex ring. A abutment spring is provided between the annular abutment portion and the radial abutment step. The input end A flange is fixed externally, and the inner end of the flange extends into the port of the input end and abuts against the limit sleeve.
在上述的一种防脱高稳定离心泵中，所述的环形凹槽的纵截面由内至外分别为横直段、曲面段和倾斜段，所述环形卡凸的纵截面由外至内为横直部、弧形部和倾斜部。In the above-mentioned anti-detachment and highly stable centrifugal pump, the longitudinal section of the annular groove is a horizontal straight section, a curved section and an inclined section from the inside to the outside, and the longitudinal section of the annular protrusion is from the outside to the inside. Horizontal part, arc part and inclined part.
在上述的一种防脱高稳定离心泵中，所述的环形卡凸外壁包裹有一层富有弹性的弹性包裹层。In the above-mentioned anti-falling and high-stable centrifugal pump, the outer wall of the annular convex is wrapped with a layer of elastic elastic wrapping layer.
在上述的一种防脱高稳定离心泵中，所述限位套靠近其外端处的内周壁上具有脱出 口。In the above-mentioned anti-detachment and high-stable centrifugal pump, the inner peripheral wall of the limiting sleeve near its outer end has a detachment opening.
在上述的一种防脱高稳定离心泵中，所述过滤网为三个。In the above-mentioned anti-falling and high-stable centrifugal pump, there are three filter screens.
与现有技术相比，本防脱高稳定离心泵具有以下优点：Compared with the existing technology, this anti-falling and highly stable centrifugal pump has the following advantages:
1、加装过滤装置，可对水流进行过滤，防止杂质进入泵体内对泵体内的零部件产生碰撞磨损，且该过滤装置中具有多层过滤网，大大提高过滤效果；1. Installing a filter device can filter the water flow to prevent impurities from entering the pump body and causing collision and wear of the parts in the pump body. The filter device has a multi-layer filter screen, which greatly improves the filtering effect;
2、加装对过滤装置进行有效限位的限位结构，防止过滤装置脱落对过滤效果产生影响，并且过滤装置与限位结构在泵体内部采用无螺纹式连接，因此不会产生螺纹锈蚀影响连接强度的问题，具有限位效果好，过滤装置稳定装配的优点。2. Install a limit structure that effectively limits the filter device to prevent the filter device from falling off and affecting the filtration effect. The filter device and the limit structure are connected without threads inside the pump body, so there will be no thread corrosion. The problem of connection strength has the advantages of good limiting effect and stable assembly of the filter device.
附图说明Description of the drawings
图1是本防脱高稳定离心泵的主视结构示意图。Figure 1 is a schematic view of the front structure of this anti-falling, highly stable centrifugal pump.
图2是输入端的部分剖视结构示意图。Figure 2 is a partial cross-sectional structural diagram of the input end.
图3是图2是A处放大结构示意图。Figure 3 is an enlarged structural diagram of Figure 2 at point A.
图中，1、输入端；2、泵体；3、滤网；4、骨架；5、限位套；6、径向抵靠台阶；7、定位环；8、延伸环；9、凸环；10、环形凹槽；11、环形卡凸；12、环形抵靠部；13、抵靠弹簧；14、法兰；15、横直部；16、弧形部；17、倾斜部；18、脱出口。In the figure, 1. Input end; 2. Pump body; 3. Filter; 4. Skeleton; 5. Limit sleeve; 6. Radial abutment step; 7. Positioning ring; 8. Extension ring; 9. Projection ring ; 10. Annular groove; 11. Annular protrusion; 12. Annular abutment part; 13. Abutment spring; 14. Flange; 15. Horizontal straight part; 16. Arc part; 17. Inclined part; 18. Detachment exit.
具体实施方式Detailed ways
以下是本实用新型的具体实施例并结合附图，对本实用新型的技术方案作进一步的描述，但本实用新型并不限于这些实施例。The following are specific embodiments of the present utility model and are combined with the accompanying drawings to further describe the technical solution of the present utility model, but the utility model is not limited to these embodiments.
如图1、图2、图3所示，本防脱高稳定离心泵，包括具有输入端1的泵体2，输入端1内设置具有过滤功能的过滤装置，过滤装置由若干个前后间隔设置的滤网3和一个用于固定上述滤网3的骨架4，若干个滤网3一体连接于骨架4内，输入端1内设有对骨架4进行压紧限位的限位套5，输入端1的内周壁上具有供限位套5内端限位抵靠的径向抵靠台阶6，限位套5内端朝骨架4方向轴向延伸形成有定位环7，定位环7与径向抵靠台阶6之间具有间隔，骨架4外端具有朝间隔内部延伸的延伸环8，限位套5的内端部上且与径向抵靠台阶6之间具有外凸的凸环9，凸环9外端面开设和有环形凹槽10，径向抵靠台阶6的端部具有径向外凸且伸入环形凹槽10内与环形凹槽10相卡接的环形卡凸11，延伸环8外端周壁上具有与凸环9内壁相抵靠的环形抵靠部12，为了提高骨架4安装的稳定性，环形抵靠部12与径向抵靠台阶6之间设有抵靠弹簧13，输入端1固定外接有法兰14，法兰14内端伸入输入端1的端口内并抵靠于限位套5上，安装时，将抵靠弹簧13置入延伸环8外并一端与环形抵靠部12端部，骨架4滑入限位套5上并使环形抵靠部12进入凸环9与定位环7 之间，装配好后，将过滤装置和限位套5装入输入端1内，使环形卡凸11卡接于环形凹槽10内，形成固定，之后伸入法兰14，法兰14内端与限位套5外端相抵靠，将法兰14与输入端1锁紧，完成安装。As shown in Figure 1, Figure 2, and Figure 3, the anti-falling high and stable centrifugal pump includes a pump body 2 with an input end 1. A filtering device with a filtering function is provided in the input end 1. The filtering device is composed of several front and rear intervals. The filter 3 and a frame 4 used to fix the above filter 3, several filters 3 are integrally connected in the frame 4, the input end 1 is provided with a limit sleeve 5 to compress the frame 4, input The inner peripheral wall of the end 1 has a radial abutment step 6 for the inner end of the limit sleeve 5 to limit and abut. The inner end of the limit sleeve 5 extends axially toward the frame 4 to form a positioning ring 7. The positioning ring 7 is connected with the radial end. There is a space between the radial abutment steps 6. The outer end of the frame 4 has an extension ring 8 extending toward the inside of the space. The inner end of the limiting sleeve 5 has an outwardly protruding convex ring 9 between the radial abutment steps 6. , the outer end surface of the convex ring 9 is opened and has an annular groove 10, and the end radially abutting the step 6 has a radially outward protruding annular protrusion 11 that extends into the annular groove 10 and engages with the annular groove 10, The outer end peripheral wall of the extension ring 8 has an annular abutment portion 12 that abuts against the inner wall of the convex ring 9. In order to improve the stability of the installation of the frame 4, an abutment spring is provided between the annular abutment portion 12 and the radial abutment step 6. 13. The input end 1 is fixedly connected with a flange 14. The inner end of the flange 14 extends into the port of the input end 1 and abuts against the limit sleeve 5. During installation, the abutment spring 13 is placed outside the extension ring 8 and One end and the end of the annular abutment part 12, the frame 4 slides into the limit sleeve 5 and the annular abutment part 12 enters between the convex ring 9 and the positioning ring 7. After assembly, install the filter device and the limit sleeve 5 into the input end 1, so that the annular protrusion 11 is engaged in the annular groove 10 to form a fixation, and then extend into the flange 14, the inner end of the flange 14 abuts the outer end of the limit sleeve 5, and connect the flange 14 with the outer end of the limit sleeve 5. Lock input terminal 1 to complete the installation.
优选的，在本实施例中，过滤网3为三个。Preferably, in this embodiment, there are three filter screens 3 .
进一步细说，环形凹槽10的纵截面由内至外分别为横直段、曲面段和倾斜段，为了提高环形卡凸11连接的强度，环形卡凸11的纵截面由外至内为横直部15、弧形部16和倾斜部17，环形卡凸11外壁包裹有一层富有弹性的弹性包裹层，环形卡凸11卡接于环形凹槽10内，由于弹性包裹层的设置，因此在卡接过程中，横直部15、弧形部16和倾斜部17在弹性形变的作用下，分别卡入横直段、曲面段和倾斜段，达到固定的作用，能够有效防止限位于限位套5上的骨架4的脱落。To elaborate further, the longitudinal section of the annular groove 10 is divided into a horizontal straight section, a curved section and an inclined section from the inside to the outside. In order to improve the strength of the connection of the annular protrusion 11, the longitudinal section of the annular protrusion 11 is a transverse straight section from the outside to the inside. 15. The arc portion 16 and the inclined portion 17, the outer wall of the annular protrusion 11 is wrapped with a layer of elastic elastic wrapping layer, and the annular protrusion 11 is engaged in the annular groove 10. Due to the arrangement of the elastic wrapping layer, it is During the process, the horizontal straight part 15, the arcuate part 16 and the inclined part 17 are respectively stuck into the horizontal straight section, the curved surface section and the inclined section under the action of elastic deformation to achieve a fixed effect, which can effectively prevent the positioning of the limit sleeve 5. The skeleton 4 falls off.
进一步细说，限位套5靠近其外端处的内周壁上具有脱出口18，在需要拆卸限位套5和过滤装置时，利用工具伸入脱出口18，再往外拉动，即可将卡接的限位套5脱落，进而使过滤装置脱落，并对滤网3进行清洗。To elaborate further, the inner peripheral wall of the limit sleeve 5 near its outer end has an escape opening 18. When it is necessary to disassemble the limit sleeve 5 and the filter device, use a tool to extend into the escape opening 18, and then pull it outward to remove the card. The connected limit sleeve 5 falls off, thereby causing the filter device to fall off, and the filter screen 3 is cleaned.
本文中所描述的具体实施例仅仅是对本实用新型精神作举例说明。本实用新型所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本实用新型的精神或者超越所附权利要求书所定义的范围。The specific embodiments described herein are merely illustrations of the spirit of the present invention. Those skilled in the technical field to which this utility model belongs can make various modifications or additions to the described specific embodiments or adopt similar replacement methods, but this will not deviate from the spirit of the utility model or exceed the appended claims. defined range.

Claims (5)

  1. 一种防脱高稳定离心泵，包括具有输入端(1)的泵体(2)，其特征在于，所述的输入端(1)内设置具有过滤功能的过滤装置，所述的过滤装置由若干个前后间隔设置的滤网(3)和一个用于固定上述滤网(3)的骨架(4)，若干个所述滤网(3)一体连接于骨架(4)内，所述的输入端(1)内设有对骨架(4)进行压紧限位的限位套(5)，所述输入端(1)的内周壁上具有供限位套(5)内端限位抵靠的径向抵靠台阶(6)，所述的限位套(5)内端朝骨架(4)方向轴向延伸形成有定位环(7)，所述的定位环(7)与径向抵靠台阶(6)之间具有间隔，所述的骨架(4)外端具有朝间隔内部延伸的延伸环(8)，所述限位套(5)的内端部上且与径向抵靠台阶(6)之间具有外凸的凸环(9)，所述的凸环(9)外端面开设和有环形凹槽(10)，所述径向抵靠台阶(6)的端部具有径向外凸且伸入环形凹槽(10)内与环形凹槽(10)相卡接的环形卡凸(11)，所述延伸环(8)外端周壁上具有与凸环(9)内壁相抵靠的环形抵靠部(12)，所述的环形抵靠部(12)与径向抵靠台阶(6)之间设有抵靠弹簧(13)，所述的输入端(1)固定外接有法兰(14)，所述的法兰(14)内端伸入输入端(1)的端口内并抵靠于限位套(5)上。A centrifugal pump with high stability and resistance to detachment, including a pump body (2) with an input end (1), characterized in that a filtering device with a filtering function is provided in the input end (1), and the filtering device is composed of Several filter screens (3) arranged at intervals before and after and a frame (4) for fixing the above-mentioned filter screen (3). Several of the said filter screens (3) are integrally connected to the frame (4). The input The end (1) is provided with a limit sleeve (5) for compressing and limiting the frame (4). The inner peripheral wall of the input end (1) has a limit sleeve (5) for the inner end of the limit sleeve (5) to abut. The radial abutment step (6), the inner end of the limit sleeve (5) extends axially toward the frame (4) to form a positioning ring (7), the positioning ring (7) is in contact with the radial abutment step (6). There is a space between the steps (6), the outer end of the frame (4) has an extension ring (8) extending toward the inside of the space, and the inner end of the limiting sleeve (5) is in radial contact with There is a protruding convex ring (9) between the steps (6). The outer end surface of the convex ring (9) is provided with an annular groove (10). The end of the radially abutting step (6) has a An annular protrusion (11) protrudes radially outward and extends into the annular groove (10) to engage with the annular groove (10). The outer end peripheral wall of the extension ring (8) has an annular protrusion (11) that engages with the annular groove (10). An annular abutment portion (12) with inner walls abutting against each other. A abutment spring (13) is provided between the annular abutment portion (12) and the radial abutment step (6). The input end (1) A flange (14) is fixedly connected externally, and the inner end of the flange (14) extends into the port of the input end (1) and abuts against the limiting sleeve (5).
  2. 根据权利要求1所述的一种防脱高稳定离心泵，其特征在于，所述的环形凹槽(10)的纵截面由内至外分别为横直段、曲面段和倾斜段，所述环形卡凸(11)的纵截面由外至内为横直部(15)、弧形部(16)和倾斜部(17)。A anti-falling and highly stable centrifugal pump according to claim 1, characterized in that the longitudinal section of the annular groove (10) is a horizontal straight section, a curved section and an inclined section from the inside to the outside. The longitudinal section of the latching protrusion (11) is composed of a transverse straight part (15), an arcuate part (16) and an inclined part (17) from the outside to the inside.
  3. 根据权利要求1所述的一种防脱高稳定离心泵，其特征在于，所述的环形卡凸(11)外壁包裹有一层富有弹性的弹性包裹层。A centrifugal pump with high stability and resistance to detachment according to claim 1, characterized in that the outer wall of the annular protrusion (11) is wrapped with a layer of elastic elastic wrapping layer.
  4. 根据权利要求1所述的一种防脱高稳定离心泵，其特征在于，所述限位套(5)靠近其外端处的内周壁上具有脱出口(18)。A detachment-resistant and highly stable centrifugal pump according to claim 1, characterized in that the limit sleeve (5) has an escape port (18) on the inner peripheral wall near its outer end.
  5. 根据权利要求1所述的一种防脱高稳定离心泵，其特征在于，所述的过滤网(3)为三个。A centrifugal pump with anti-falling and high stability according to claim 1, characterized in that there are three filter screens (3).
PCT/CN2022/096266 2022-05-31 2022-05-31 Anti-falling high-stability centrifugal pump WO2023230848A1 (en)

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PCT/CN2022/096266 WO2023230848A1 (en) 2022-05-31 2022-05-31 Anti-falling high-stability centrifugal pump

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018125428A1 (en) * 2018-10-15 2018-12-27 FEV Europe GmbH Compressor system for a turbocharger
CN213839056U (en) * 2020-10-22 2021-07-30 苏州苏礼能源科技有限公司 Energy-saving centrifugal circulating water pump
CN215949964U (en) * 2021-10-18 2022-03-04 台州三鹰泵业有限公司 Anticreep high stable centrifugal pump
CN216518696U (en) * 2021-12-24 2022-05-13 浙江潜工泵业科技有限公司 Prevent immersible pump of impurity entering
CN114526239A (en) * 2021-12-24 2022-05-24 三星（温岭）水泵有限公司 High-stability long-life centrifugal pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018125428A1 (en) * 2018-10-15 2018-12-27 FEV Europe GmbH Compressor system for a turbocharger
CN213839056U (en) * 2020-10-22 2021-07-30 苏州苏礼能源科技有限公司 Energy-saving centrifugal circulating water pump
CN215949964U (en) * 2021-10-18 2022-03-04 台州三鹰泵业有限公司 Anticreep high stable centrifugal pump
CN216518696U (en) * 2021-12-24 2022-05-13 浙江潜工泵业科技有限公司 Prevent immersible pump of impurity entering
CN114526239A (en) * 2021-12-24 2022-05-24 三星（温岭）水泵有限公司 High-stability long-life centrifugal pump

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