CN111140533A - Centrifugal pump - Google Patents
Centrifugal pump Download PDFInfo
- Publication number
- CN111140533A CN111140533A CN201911203522.0A CN201911203522A CN111140533A CN 111140533 A CN111140533 A CN 111140533A CN 201911203522 A CN201911203522 A CN 201911203522A CN 111140533 A CN111140533 A CN 111140533A
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- pump body
- rear cover
- hoop
- jacking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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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
- 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
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M5/00—Engine beds, i.e. means for supporting engines or machines on foundations
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a centrifugal pump, which comprises a centrifugal pump body, a rear cover and a rear cover screw; the front end of the centrifugal pump body is provided with a liquid inlet and a liquid outlet; the rear cover is sleeved at the rear end of the centrifugal pump body; the rear cover screw is used for fastening the rear cover on the centrifugal pump body; the centrifugal pump also comprises an anchor ear assembly, and the anchor ear assembly comprises an anchor ear and a fastening connection structure; the hoop is used for being sleeved on the outer side of the rear cover; and the fastening connection structure is used for fastening and connecting the two ends of the hoop to tightly clamp the hoop on the rear cover when the hoop is sleeved on the outer side of the rear cover. The back cover is fixed on the basis of the centrifugal pump body through a back cover screw, and the hoop sleeved outside the back cover is additionally arranged, so that the hoop is hooped on the back cover under the action of the fastening and connecting structure, and the back cover is fastened on the centrifugal pump body; through the synergistic action of the rear cover screw and the hoop, the rear cover screw on the rear cover is not easy to loosen, so that the normal operation of the centrifugal pump is ensured, the generation of mechanical faults is reduced, and the working efficiency is improved.
Description
Technical Field
The present invention relates to a centrifugal pump.
Background
The centrifugal pump is a pump for conveying liquid by centrifugal force generated when an impeller rotates, and comprises a pump body and a motor.
The patent of chinese utility model with the publication number of grant CN208348095U discloses a centrifugal pump, including the centrifugal pump body, the centrifugal pump body includes the motor and the pump body, and the rear side of centrifugal pump body is equipped with the back lid, and back lid is the fan housing, and generally the back lid is only through the fastening screw fastening of global arranging on the centrifugal pump body, and fastening screw is not hard up easily after the vibration to influence the normal operating of centrifugal pump, cause mechanical failure even.
Disclosure of Invention
The invention aims to provide a centrifugal pump, which solves the problem that a back cover of the centrifugal pump in the prior art is easy to vibrate and loosen due to the fact that the back cover is fixed only by fastening screws.
In order to achieve the purpose, the technical scheme of the centrifugal pump is as follows:
the centrifugal pump comprises a centrifugal pump body, a rear cover and a rear cover screw;
the front end of the centrifugal pump body is provided with a liquid inlet and a liquid outlet;
the rear cover is sleeved at the rear end of the centrifugal pump body;
the rear cover screw is used for fastening the rear cover on the centrifugal pump body;
the centrifugal pump also comprises an anchor ear assembly, and the anchor ear assembly comprises an anchor ear and a fastening connection structure;
the hoop is used for being sleeved on the outer side of the rear cover;
and the fastening connection structure is used for fastening and connecting the two ends of the hoop to tightly clamp the hoop on the rear cover when the hoop is sleeved on the outer side of the rear cover.
The beneficial effects are that: the back cover is fixed on the basis of the centrifugal pump body through a back cover screw, and the hoop sleeved outside the back cover is additionally arranged, so that the hoop is hooped on the back cover under the action of the fastening and connecting structure, and the back cover is fastened on the centrifugal pump body; through the synergistic action of the rear cover screw and the hoop, the rear cover screw on the rear cover is not easy to loosen, so that the normal operation of the centrifugal pump is ensured, the generation of mechanical faults is reduced, and the working efficiency is improved.
The hoop is provided with a support structure, the support structure is movably provided with a jacking structure, and the jacking structure is provided with a jacking position which is jacked on the centrifugal pump body on the moving stroke of the jacking structure. The connecting force between the rear cover and the centrifugal pump body is increased, and the rear cover is prevented from shaking relative to the centrifugal pump body.
The jacking structure is arranged at least two at intervals along the circumferential direction of the centrifugal pump body. The connecting force between the rear cover and the centrifugal pump body is further increased.
The jacking structure comprises a jacking screw rod extending along the radial direction of the centrifugal pump body, and a jacking portion is arranged at the end part, facing the centrifugal pump body, of the jacking screw rod. The structure is simple, and the jacking screw rod is convenient to drive the jacking part to jack the jacking part on the centrifugal pump body.
The top pressing part is an arc-shaped belt extending along the circumferential direction of the centrifugal pump body, and the arc-shaped belt is of a hard structure. The contact area between the jacking part and the centrifugal pump body is increased, and the stability of the jacking structure when jacking the centrifugal pump body is ensured.
And the inner side of the arc-shaped belt is provided with a latch which is used for being plugged with a tooth groove on the centrifugal pump body. The latch can block and establish on the tooth's socket for the arc area is fixed relatively along circumference with the centrifugal pump body, and the arc area of being convenient for compresses tightly on the centrifugal pump body under the effect of roof pressure screw rod.
Be equipped with unsmooth grafting structure between the medial surface of staple bolt and the outer peripheral face of back lid, unsmooth grafting structure includes arch and recess, at least one arch has been arranged along centrifugal pump body circumference on one of them of the medial surface of staple bolt and the outer peripheral face of back lid, on another along centrifugal pump body circumference arranged with the recess of protruding one-to-one. Avoid the staple bolt to slide along centrifugal pump body circumference.
The protrusion is an arc protrusion, and the groove is an arc groove. The arc-shaped groove and the arc-shaped protrusion are convenient to insert, and meanwhile, the hoop can be better hooped on the rear cover.
And the rear cover is provided with an annular groove for installing the hoop. The annular groove can position the hoop, and the hoop is convenient to clamp on the rear cover.
The hoop is an elastic hoop. The effect through the elastic force can make the staple bolt better with the back lid hoop tightly on the centrifugal pump body.
Drawings
FIG. 1 is a schematic view of the centrifugal pump of the present invention;
FIG. 2 is a schematic structural view of the back cover of the centrifugal pump of the present invention in cooperation with the hoop;
FIG. 3 is a schematic structural view of the hoop of the centrifugal pump of the present invention;
FIG. 4 is a schematic structural view of a pressing structure of the centrifugal pump of the present invention;
fig. 5 is a schematic structural view of the elastic cushion block of the centrifugal pump of the present invention.
In the figure: 1-a centrifugal pump body; 2-rear cover; 3, fixing the plate; 4-lower fixing plate; 5-embedding a rod; 6-taper foot; 7-a first screw; 8-a first nut; 9-elastic cushion block; 10-anchor ear; 11-a fastening bolt; 12-a right angle support; 13-a second screw; 14-a limiting block; 15-a second nut; 16-an arc-shaped band; 17-latch; 18-a groove; 19-raised; 20-a slide block; 21-a chute; 22-gullet; 23-annular groove.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the specific embodiment of the centrifugal pump of the invention, as shown in fig. 1, the centrifugal pump comprises a centrifugal pump body 1, a liquid inlet and outlet is arranged at the front end of the centrifugal pump body 1, a rear cover 2 is sleeved at the rear end, and the rear cover 2 plays a role in dust prevention; the rear cover 2 is fastened on the centrifugal pump body 1 through rear cover screws (not shown), and then the rear cover 2 is hooped on the centrifugal pump body 1 through the hoop component.
Staple bolt subassembly includes staple bolt 10 and fastening bolt 11, staple bolt 10 is used for the suit in the outside of back lid 2, fastening bolt 11 is when staple bolt 10 suit is in the back lid 2 outside, the both ends of fastening connection staple bolt 10 are in order to cramp staple bolt 10 on back lid 2, thereby make back lid 2 fastening on centrifugal pump body 1, through the synergism of back lid screw and staple bolt 10, it is difficult for producing not hard up to have guaranteed the back lid screw on the back lid 2, thereby guarantee the normal operating of centrifugal pump, mechanical failure's production has been reduced, and the work efficiency is improved. Wherein the fastening bolt 11 constitutes a fastening connection structure. In other embodiments, the steel wire may be passed through holes at both ends of the hoop and tightened with pliers to tighten the hoop.
As shown in fig. 1, the hoop 10 is provided with a right-angle support frame 12, the right-angle support frame 12 is movably equipped with a pressing structure, the pressing structure has a pressing position pressing against the centrifugal pump body 1 on the moving stroke, the connecting force between the rear cover 2 and the centrifugal pump body 1 is increased, and the rear cover 2 is prevented from shaking relative to the centrifugal pump body 1, wherein the right-angle support frame 12 constitutes a support structure, and in other embodiments, the support structure can be deformed appropriately as required. In other embodiments, the right-angle support frame and the pressing structure may not be provided under the condition that the holding force of the hoop is sufficient.
As shown in fig. 1 and 4, the jacking structure includes a second screw 13 assembled on the cross brace of the right angle support frame 12 by screw threads, the second screw 13 constitutes the jacking screw, the second screw 13 extends along the radial direction of the centrifugal pump body, the end portion of the second screw, which is far away from the centrifugal pump body 1, is provided with a limit block 14, the end portion, which faces the centrifugal pump body 1, is provided with a jacking portion, the screw structure is simple, the second screw 13 is conveniently driven to drive the jacking portion to jack on the centrifugal pump body 1, wherein a second nut 15 is arranged between the limit block 14 and the cross brace of the right angle support frame 12, and the second nut 15 is a locking nut. In other embodiments, the jacking structure is fixedly assembled on the right-angle support frame, the cross brace of the right-angle support frame can move and be locked along the vertical brace in the vertical direction, and the jacking structure is driven to be pressed on the centrifugal pump body through the cross brace; or the jacking structure comprises a movable polished rod which is arranged on the cross brace of the right-angle support frame in a penetrating mode, a supporting plate is arranged between the centrifugal pump body and the cross brace of the polished rod, and an elastic piece is arranged between the supporting plate and the cross brace in a plugging mode, so that the polished rod is jacked on the centrifugal pump body under the elastic acting force of the elastic piece.
In this embodiment, the top pressure structure has three along the circumference interval arrangement of centrifugal pump body 1 to set up respectively in the top and both sides of centrifugal pump body 1, further increased the power of being connected between back lid and the centrifugal pump body. In other embodiments, only one set of pressing structures may be provided in case the pressing force is satisfied.
In this embodiment, the top pressing portion is the arc area 16 that extends along the circumference of centrifugal pump body 1, and the arc area 16 is the stereoplasm structure, is difficult for taking place to warp promptly, has increased the area of contact of top pressing portion with centrifugal pump body 1, stability when guaranteeing the top pressing structure top pressure centrifugal pump body. In other embodiments, the pressing portion is an arc-shaped concave portion provided at an end portion of the second screw rod facing the centrifugal pump body, and the arc-shaped concave portion is fitted to an outer peripheral surface of the centrifugal pump body.
As shown in fig. 4, the inner side of the arc-shaped belt 16 is provided with a latch 17 inserted into a tooth groove 22 on the centrifugal pump body 1, the latch 17 is arranged along the circumferential direction of the centrifugal pump body 1, and the latch 17 can be latched onto the tooth groove 22, so that the arc-shaped belt 16 and the centrifugal pump body 1 are relatively fixed along the circumferential direction, the arc-shaped belt 16 is conveniently pressed on the centrifugal pump body 1 under the action of the second screw 13, and the latch 17 is matched with the tooth groove 22 on the centrifugal pump body 1. In other embodiments, the latch may not be provided in case the pressing force is sufficient.
A concave-convex inserting structure is arranged between the inner side face of the hoop 10 and the outer peripheral face of the rear cover 2, and the concave-convex inserting structure comprises a protrusion and a groove. As shown in fig. 2 and 3, a plurality of protrusions 19 are arranged on the inner side surface of the hoop 10 along the circumferential direction of the centrifugal pump body 1, and grooves 18 corresponding to the protrusions one by one are arranged on the outer circumferential surface of the back cover 2 along the circumferential direction of the centrifugal pump body 1, so that the hoop 10 is prevented from sliding along the circumferential direction of the centrifugal pump body 1. In other embodiments, under the condition that the holding force of the hoop is enough, a concave-convex inserting structure is not arranged between the inner side surface of the hoop and the outer peripheral surface of the rear cover; or the groove is arranged on the inner side surface of the hoop, and the bulge is arranged on the outer peripheral surface of the rear cover.
In this embodiment, the protrusion 19 is an arc protrusion, the groove 18 is an arc groove, the arc groove and the arc protrusion are convenient for inserting, and meanwhile, the hoop 10 can be better hooped on the rear cover 2. In other embodiments, in order to fasten the anchor ear to the back cover, the protrusion may be a truncated cone-shaped protrusion, and the groove may be a truncated cone-shaped groove.
As shown in fig. 3, an annular groove 23 is provided on the rear cover 2 for installing the hoop 10, wherein the groove 18 is provided in the annular groove 23, and the annular groove 23 can position the hoop 10, so that the hoop 10 can be conveniently hooped on the rear cover 2. In other embodiments, no annular groove may be provided. In this embodiment, the cross section of the annular groove 23 is arc-shaped, so that the hoop 10 can be conveniently placed.
In this embodiment, staple bolt 10 is the elasticity staple bolt, can make the staple bolt 10 better cramp back lid 2 on centrifugal pump body 1 through the effect of elastic force. In other embodiments, in order to make the anchor ear better clamp the back cover 2 to the centrifugal pump body, the anchor ear is a rigid anchor ear, such as an anchor ear made of metal.
As shown in fig. 1, the centrifugal pump further includes a lower fixing plate 4, embedded rods 5 are perpendicularly welded on four corners of the lower side surface of the lower fixing plate 4, a plurality of conical feet 6 circumferentially arranged along the embedded rods 5 are welded at the bottom end of each embedded rod 5, friction force can be increased, so that the lower fixing plate 4 is prevented from being separated from the ground due to vibration, wherein the embedded rods 5 are arranged below the ground, and the embedded rods 5 are installed when concrete is poured, so that the lower fixing plate 4 is fastened with the ground or a wall body.
As shown in fig. 1 and 5, first screws 7 are vertically welded to four corners of the upper side surface of the lower fixing plate 4, and the upper ends of the first screws 7 are fixed to the upper fixing plate 3 by first nuts 8 after passing through the upper fixing plate. Be equipped with elastic cushion 9 between upper fixed plate 3 and the bottom plate 4, two elastic cushion 9 press from both sides and are equipped with a first screw rod 7, and elastic cushion 9 is used for bearing the weight of upper fixed plate 3 and upper fixed plate 3 top, can block the route of vibration propagation, the effectual separation that prevents first screw rod 7 and first nut 8. Wherein, the elastic cushion block 9 is a rubber cushion block.
In this embodiment, the bottom of the elastic cushion block 9 is provided with a sliding block 20, the lower fixing plate 4 is provided with a sliding groove 21, and the elastic cushion block 9 can slide in the sliding groove 21 through the sliding block 20, so that the elastic cushion block can be conveniently replaced. In this embodiment, the sliding block 20 and the sliding slot 21 are of a dovetail structure, which can prevent the left and right sides of the elastic cushion block 9 from slipping due to vibration. Wherein the slider 20 is integrally formed with the resilient pad 9.
In this embodiment, the centrifugal pump body 1 is welded and fixed to the upper fixing plate 3.
During specific implementation, the embedded rod 5 is installed when concrete is poured, so that the lower fixing plate 4 is connected with the ground more tightly, then the upper fixing plate 3 of the centrifugal pump is fixed on the lower fixing plate 4 through the first screw 7 and the first nut 8, the elastic cushion block 9 is arranged between the upper fixing plate 3 and the lower fixing plate 4 in a cushioning mode, the elastic cushion block 9 bears the weight of the upper portion, a path of vibration propagation can be blocked, the first nut 8 on the first screw 7 is effectively prevented from being separated by vibration, and therefore the centrifugal pump body 1 is prevented from being separated from the lower fixing plate 4; establish staple bolt 10 cover on lid 2 after, then fixed through fastening bolt 11, fix arc area 16 on the lateral wall of centrifugal pump body 1 through second screw rod 13 for latch 17 card is on tooth's socket 22, can increase the power of being connected between lid 2 and the centrifugal pump body 1 after, prevents that back lid 2 slippage.
Claims (10)
1. The centrifugal pump comprises a centrifugal pump body, a rear cover and a rear cover screw;
the front end of the centrifugal pump body is provided with a liquid inlet and a liquid outlet;
the rear cover is sleeved at the rear end of the centrifugal pump body;
the rear cover screw is used for fastening the rear cover on the centrifugal pump body;
the method is characterized in that: the centrifugal pump also comprises an anchor ear assembly, and the anchor ear assembly comprises an anchor ear and a fastening connection structure;
the hoop is used for being sleeved on the outer side of the rear cover;
and the fastening connection structure is used for fastening and connecting the two ends of the hoop to tightly clamp the hoop on the rear cover when the hoop is sleeved on the outer side of the rear cover.
2. The centrifugal pump of claim 1, wherein: the hoop is provided with a support structure, the support structure is movably provided with a jacking structure, and the jacking structure is provided with a jacking position which is jacked on the centrifugal pump body on the moving stroke of the jacking structure.
3. The centrifugal pump of claim 2, wherein: the jacking structure is arranged at least two at intervals along the circumferential direction of the centrifugal pump body.
4. A centrifugal pump according to claim 2 or 3, wherein: the jacking structure comprises a jacking screw rod extending along the radial direction of the centrifugal pump body, and a jacking portion is arranged at the end part, facing the centrifugal pump body, of the jacking screw rod.
5. The centrifugal pump of claim 4, wherein: the top pressing part is an arc-shaped belt extending along the circumferential direction of the centrifugal pump body, and the arc-shaped belt is of a hard structure.
6. The centrifugal pump of claim 5, wherein: and the inner side of the arc-shaped belt is provided with a latch which is used for being plugged with a tooth groove on the centrifugal pump body.
7. A centrifugal pump according to claim 1, 2 or 3, characterized in that: be equipped with unsmooth grafting structure between the medial surface of staple bolt and the outer peripheral face of back lid, unsmooth grafting structure includes arch and recess, at least one arch has been arranged along centrifugal pump body circumference on one of them of the medial surface of staple bolt and the outer peripheral face of back lid, on another along centrifugal pump body circumference arranged with the recess of protruding one-to-one.
8. The centrifugal pump of claim 7, wherein: the protrusion is an arc protrusion, and the groove is an arc groove.
9. A centrifugal pump according to claim 1, 2 or 3, characterized in that: and the rear cover is provided with an annular groove for installing the hoop.
10. A centrifugal pump according to claim 1, 2 or 3, characterized in that: the hoop is an elastic hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911203522.0A CN111140533A (en) | 2019-11-29 | 2019-11-29 | Centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911203522.0A CN111140533A (en) | 2019-11-29 | 2019-11-29 | Centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111140533A true CN111140533A (en) | 2020-05-12 |
Family
ID=70517358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911203522.0A Pending CN111140533A (en) | 2019-11-29 | 2019-11-29 | Centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111140533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228729A (en) * | 2020-10-24 | 2021-01-15 | 甘肃省小陇山林业实验局林业科学研究所 | Forest resource information acquisition terminal |
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| CN201056205Y (en) * | 2007-06-22 | 2008-05-07 | 肖俊港 | Multi-cavity series type brake air chamber assembly for automobile |
| US20150062749A1 (en) * | 2013-08-28 | 2015-03-05 | Samsung Electro-Mechanics Japan Advanced Tech. Co. Ltd. | Rotating device |
| CN205781404U (en) * | 2016-05-20 | 2016-12-07 | 马鞍山市志诚科技有限公司 | A kind of anti-loosening pipe clamp that is locked |
| CN107435679A (en) * | 2017-08-03 | 2017-12-05 | 安徽奥睿德科技发展有限公司 | A kind of para-seismic support screw rod reinforcer |
| CN207261157U (en) * | 2017-08-30 | 2018-04-20 | 上海波赫驱动系统有限公司 | A kind of tilt cylinder type hydraulic motor |
| CN108252786A (en) * | 2016-12-28 | 2018-07-06 | 重庆赫皇科技咨询有限公司 | Cooling motorcycle water external cooler bin |
| CN208348095U (en) * | 2018-04-25 | 2019-01-08 | 普轩特泵业有限公司 | A kind of centrifugal pump facilitating installation fan blade |
| CN209489175U (en) * | 2018-10-17 | 2019-10-15 | 宁波市泰利机械有限公司 | A kind of brush cutter fan housing assembly |
-
2019
- 2019-11-29 CN CN201911203522.0A patent/CN111140533A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201056205Y (en) * | 2007-06-22 | 2008-05-07 | 肖俊港 | Multi-cavity series type brake air chamber assembly for automobile |
| US20150062749A1 (en) * | 2013-08-28 | 2015-03-05 | Samsung Electro-Mechanics Japan Advanced Tech. Co. Ltd. | Rotating device |
| CN205781404U (en) * | 2016-05-20 | 2016-12-07 | 马鞍山市志诚科技有限公司 | A kind of anti-loosening pipe clamp that is locked |
| CN108252786A (en) * | 2016-12-28 | 2018-07-06 | 重庆赫皇科技咨询有限公司 | Cooling motorcycle water external cooler bin |
| CN107435679A (en) * | 2017-08-03 | 2017-12-05 | 安徽奥睿德科技发展有限公司 | A kind of para-seismic support screw rod reinforcer |
| CN207261157U (en) * | 2017-08-30 | 2018-04-20 | 上海波赫驱动系统有限公司 | A kind of tilt cylinder type hydraulic motor |
| CN208348095U (en) * | 2018-04-25 | 2019-01-08 | 普轩特泵业有限公司 | A kind of centrifugal pump facilitating installation fan blade |
| CN209489175U (en) * | 2018-10-17 | 2019-10-15 | 宁波市泰利机械有限公司 | A kind of brush cutter fan housing assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228729A (en) * | 2020-10-24 | 2021-01-15 | 甘肃省小陇山林业实验局林业科学研究所 | Forest resource information acquisition terminal |
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Application publication date: 20200512 |
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| RJ01 | Rejection of invention patent application after publication |