CN109930807B - Water turbine volute overhauling device - Google Patents
Water turbine volute overhauling device Download PDFInfo
- Publication number
- CN109930807B CN109930807B CN201910340407.1A CN201910340407A CN109930807B CN 109930807 B CN109930807 B CN 109930807B CN 201910340407 A CN201910340407 A CN 201910340407A CN 109930807 B CN109930807 B CN 109930807B
- Authority
- CN
- China
- Prior art keywords
- limiting
- rods
- support rod
- shaped
- top frame
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The invention provides a water turbine volute maintenance device, and belongs to the technical field of water turbine volute equipment detection. The technical proposal is as follows: the device comprises an outer bracket, an inner bracket arranged in the outer bracket, a sliding component and a limiting component which are arranged on the outer bracket and the inner bracket; the outer support comprises a bottom frame A and a top frame A, and the inner support comprises a bottom frame B and a top frame B. The beneficial effects of the invention are as follows: simple structure, convenient to use, convenient regulation use height.
Description
Technical Field
The invention relates to a water turbine volute equipment detection technology, in particular to a water turbine volute maintenance device.
Background
The hydraulic turbine volute is one of the common equipment in the current hydraulic power plant, and because the hydraulic turbine volute needs to be overhauled and maintained regularly, in the past overhauling operation, an overhauler usually stands on a movable scaffold to overhaul and maintain the equipment, but the scaffold stability is weaker, the overhauling heights are different, and the needed auxiliary devices are different in height.
Disclosure of Invention
The invention aims to provide a hydraulic turbine volute maintenance device which is simple in structure and convenient to use, and can conveniently adjust the use height while maintaining the stability of the device.
The invention is realized by the following measures:
the water turbine volute overhaul device is characterized by comprising an outer bracket, an inner bracket arranged in the outer bracket, a sliding component and a limiting component, wherein the sliding component and the limiting component are arranged on the outer bracket and the inner bracket;
the outer support comprises a bottom frame A and a top frame A, wherein the bottom frame A and the top frame A are rectangular frames, a pair of left support rods A and a pair of right support rods A are arranged on the left side and the right side between the top frame A and the bottom frame A, and a plurality of auxiliary support rods are arranged in the bottom frame;
the inner support comprises an underframe B and a top frame B, the underframe B and the top frame B are rectangular frames, and a pair of left support rods B and a pair of right support rods B are arranged on the left side and the right side between the underframe B and the top frame B;
a pair of auxiliary support rods A are arranged between the left support rod A and the right support rod A at the two sides and correspond to the left support rod B and the right support rod B, the top ends of the auxiliary support rods A are arranged on the top frame A, and the bottom ends of the auxiliary support rods are arranged on the bottom frame A;
the sliding assembly comprises a strip sliding rail arranged at the inner side of the auxiliary supporting rod A, and strip sliding blocks matched with the strip sliding rail for use are arranged at the outer sides of the left supporting rod B and the right supporting rod B;
through the cooperation of rectangular slide rail with rectangular slider uses, the inner support can go up and down.
The invention has the specific characteristics that:
the inner support is provided with an auxiliary support rod B on the same side between the left support rod B and the right support rod B, the auxiliary support rod B is parallel to the left support rod B and the right support rod B, the top end of the auxiliary support rod B is arranged at the middle position of the long side of the top frame B, and the bottom end of the auxiliary support rod B is arranged at the middle position of the long side of the bottom frame B.
The limiting mechanism comprises a left supporting rod B and a right supporting rod B, three short rods A are arranged on the inner sides of the left supporting rod B and the right supporting rod B along the length direction of a top frame B, the three short rods A are arranged in parallel, three short rods B are arranged on the two sides of the auxiliary supporting rod B along the length direction of the top frame B and correspond to the positions of the short rods A, corresponding arc-shaped plates are arranged at the ends of the short rods A and the short rods B, the corresponding arc-shaped plates form limiting rings with upper openings and lower openings, and the three limiting rings form three-gear heights;
a pair of U-shaped cylinders A with two open ends are arranged on the front side of the lower end face of the top frame A, a pair of U-shaped cylinders B with one open end and the other closed end are arranged on the rear side of the lower end face of the top frame A, and the corresponding U-shaped cylinders A and the corresponding U-shaped cylinders B are concentrically arranged;
the limiting mechanism further comprises a limiting pin, and one end of the limiting pin sequentially penetrates through the U-shaped barrel A, the limiting ring on the front side and the limiting ring on the rear side and is arranged in the U-shaped barrel B.
The limiting pin comprises a limiting column A, wherein two ends of the limiting column A are respectively provided with a limiting column B and a limiting column C through a cylindrical connecting rod, the limiting column B is arranged in the U-shaped cylinder A, and the limiting column C is arranged in the U-shaped cylinder B;
the radius of the limiting column A, the radius of the limiting column B and the radius of the limiting column C are equal and slightly smaller than the inner diameter of the limiting ring, and the diameter of the cross section of the connecting rod is smaller than the size of the upper opening and the lower opening of the limiting ring.
The U-shaped barrel A and the two sides of the inner surface of the U-shaped barrel B are provided with semicircular bulges, the outer surfaces of the limiting columns A, B and C are provided with sliding grooves matched with the semicircular bulges, the outer surfaces of one end of the outer part of the U-shaped barrel A, which is positioned on the limiting columns B, are symmetrically provided with a pair of limiting rods, and the outer sides of the U-shaped barrel A are provided with L-shaped limiting rods matched with the limiting rods.
The outer support minor face one side is fixed to be provided with down fixed ladder, down fixed ladder top sets up roof-rack A side, bottom setting are in chassis A side, is located go up fixed ladder inboard be provided with down fixed ladder on the inner support, it is in to go up fixed ladder top setting roof-rack B side, bottom setting are in chassis B side.
The inner support top is provided with the roof, be provided with the guardrail on the roof, preferably, go up fixed ladder opposite side be provided with the guardrail on the roof.
And a cushion block flush with the outer side of the U-shaped cylinder B is arranged on one side, close to the U-shaped cylinder B, of the bottom frame A and the top frame A.
A plurality of weights are arranged between the auxiliary stay bars and the underframe A, and universal wheels are arranged at the bottom of the underframe A.
When the device needs to be lifted, the limiting pin is pulled out, the limiting rod is propped against the inner side of the L-shaped limiting rod, at the moment, the connecting rod is positioned in the limiting ring, because the diameter of the cross section of the connecting rod is smaller than the size of the upper opening and the lower opening of the limiting ring, a worker lifts the inner support, the inner support can move up and down and is adjusted to a proper height, the limiting ring and the limiting pin are aligned concentrically, the limiting pin is pushed, the limiting rod is propped against the side face of the U-shaped barrel A, at the moment, the limiting column B enters the front side of the limiting ring, the limiting column C enters the rear side of the limiting ring, and because the radius of the limiting column A, the radius of the limiting column B and the radius of the limiting column C are equal and slightly smaller than the inner diameter of the limiting ring, the inner support is fixed, and when the inner support is lowered, the worker lifts the inner support, and then pulls out the limiting pin, and slowly puts down the inner support.
The beneficial effects of the invention are as follows: simple structure, convenient to use, when can keep device stability, convenient regulation use height.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of an outer bracket according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of an inner bracket according to an embodiment of the present invention.
Fig. 4 is a schematic top view of an embodiment of the present invention.
Fig. 5 is a schematic structural view of a limiting pin according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a lifting state according to an embodiment of the present invention.
Fig. 7 is a partial enlarged view of a portion a in fig. 6.
Fig. 8 is a partial enlarged view of the portion B in fig. 6.
Fig. 9 is a schematic structural diagram of a fixed state according to an embodiment of the present invention.
Fig. 10 is a partial enlarged view of a portion C in fig. 9.
Fig. 11 is a partial enlarged view of a portion D in fig. 9.
Wherein, the reference numerals are as follows: 1. an outer bracket; 101. a chassis A; 102. a top frame A; 103. a right support rod A; 104. a left support rod A; 105. a U-shaped barrel B; 106. a U-shaped barrel A; 107. a semicircular protrusion; 108. an L-shaped limit rod; 109. a lower fixed ladder; 110. a long slide rail; 111. an auxiliary support rod A; 112. a weight block; 2. an inner bracket; 201. 202, a top frame B; 203. a left support rod B; 204. a right support rod B; 205. a long-strip sliding block; 206. a top plate; 207. guard bars; 208. a fixed ladder is arranged on the upper part; 209. the method comprises the steps of carrying out a first treatment on the surface of the 210. A short rod A; 211. an arc-shaped plate; 212. an auxiliary support rod B; 3. a universal wheel; 5. a limiting pin; 501. a limit column A; 502. a connecting rod; 503. a limit column C; 504. a limit column B; 505. a limit rod; 506. and a sliding groove.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
Referring to fig. 1-11, a water turbine volute maintenance device comprises an outer support (1), an inner support (2) arranged in the outer support (1), a sliding component and a limiting component which are arranged on the outer support (1) and the inner support (2);
the outer bracket (1) comprises a bottom bracket A (101) and a top bracket A (102), wherein the bottom bracket A (101) and the top bracket A (102) are rectangular frames, a pair of left support rods A (104) and a pair of right support rods A (103) are arranged at the left side and the right side between the top bracket A (102) and the bottom bracket A (101), and a plurality of auxiliary support rods are arranged in the bottom bracket;
the inner bracket (2) comprises a bottom bracket B (201) and a top bracket B (202), wherein the bottom bracket B (201) and the top bracket B (202) are rectangular frames, and a pair of left support rods B (203) and a pair of right support rods B (204) are arranged on the left side and the right side between the bottom bracket B (201) and the top bracket B (202);
a pair of auxiliary support rods A (111) are arranged between the left support rod A (104) and the right support rod A (103) at the two sides and correspond to the left support rod B (203) and the right support rod B (204), the top ends of the auxiliary support rods A (111) are arranged on the top frame A (102), and the bottom ends of the auxiliary support rods are arranged on the bottom frame A (101);
the sliding component comprises a strip sliding rail (110) arranged at the inner side of the auxiliary supporting rod A (111), and strip sliding blocks (205) matched with the strip sliding rail (110) for use are arranged at the outer sides of the left supporting rod B (203) and the right supporting rod B (204);
through the cooperation of rectangular slide rail (110) and rectangular slider (205), inner bracket (2) can go up and down.
On the inner support (2), be provided with auxiliary stay B (212) between homonymy left branch vaulting pole B (203) and the right branch vaulting pole B (204), auxiliary stay B (212) and left branch vaulting pole B (203) and right branch vaulting pole B (204) parallel arrangement, auxiliary stay B (212) top sets up the intermediate position on the long limit of roof-rack B (202), auxiliary stay B (212) bottom sets up the intermediate position on the long limit of chassis B (201).
The limiting mechanism comprises three short rods A (210) which are arranged on the inner sides of a left supporting rod B (203) and a right supporting rod B (204) along the length direction of a top frame B (202), the three short rods A (210) are arranged in parallel, three short rods B (209) are arranged on the two sides of an auxiliary supporting rod B (212) along the length direction of the top frame B (202) corresponding to the positions of the short rods A (210), corresponding arc plates (211) are arranged on the ends of the short rods A (210) and the short rods B (209), the corresponding arc plates (211) form limiting rings with upper openings and lower openings, and the three limiting rings form three-gear heights;
a pair of U-shaped barrels A (106) with two open ends are arranged on the front side of the lower end face of the top frame A (102), a pair of U-shaped barrels B (105) with one open end and the other closed end are arranged on the rear side of the lower end face of the top frame A (102), and the corresponding U-shaped barrels A (106) and B (105) are concentrically arranged;
the limiting mechanism further comprises a limiting pin (5), and one end of the limiting pin (5) sequentially penetrates through the U-shaped barrel A (106), the front limiting ring and the rear limiting ring to be arranged in the U-shaped barrel B (105).
The limiting pin (5) comprises a limiting column A (501), wherein both ends of the limiting column A (501) are respectively provided with a limiting column B (504) and a limiting column C (503) through a cylindrical connecting rod (502), the limiting column B (504) is arranged in the U-shaped barrel A (106), and the limiting column C (503) is arranged in the U-shaped barrel B (105);
the radius of the limiting column A (501), the radius of the limiting column B (504) and the radius of the limiting column C (503) are equal, the radius of the limiting column is slightly smaller than the inner diameter of the limiting ring, and the diameter of the cross section of the connecting rod (502) is smaller than the size of the upper opening and the lower opening of the limiting ring.
Semicircular bulges (107) are arranged on two sides of the inner surfaces of the U-shaped barrel A (106) and the U-shaped barrel B (105), sliding grooves (506) matched with the semicircular bulges (107) are formed in the outer surfaces of the limiting column A (501), the limiting column B (504) and the limiting column C (503), a pair of limiting rods (505) are symmetrically arranged on the outer surface of one end of the outer portion of the limiting column B (504) located on the U-shaped barrel A (106), and L-shaped limiting rods (505) (108) matched with the limiting rods (505) are arranged on the outer side of the U-shaped barrel A (106).
The outer support (1) minor face one side is fixed and is provided with down fixed ladder (109), and lower fixed ladder (109) top sets up in roof-rack A (102) side, bottom setting are in chassis A (101) side, are located fixed ladder (208) inboard, are provided with down fixed ladder (109) on inner support (2), and fixed ladder (208) top setting is in roof-rack B (202) side, bottom setting are in chassis B (201) side in the upper bracket.
The top of the inner bracket (2) is provided with a top plate (206), the top plate (206) is provided with a guardrail (207), and preferably, one side opposite to the upper fixed ladder (208) is provided with the guardrail (207) on the top plate (206).
And a cushion block which is flush with the outer side of the U-shaped barrel B (105) is arranged on one side of the bottom frame A (101) and the top frame A (102) close to the U-shaped barrel B (105).
A plurality of weights (112) are arranged between the auxiliary stay bars and the underframe A (101), and universal wheels (3) are arranged at the bottom of the underframe A (101).
When the lifting device is needed, the limiting pin (5) is pulled out, the limiting rod (505) is propped against the inner side of the L-shaped limiting rod (505) (108), at the moment, the connecting rod (502) is positioned in the limiting ring, because the diameter of the cross section of the connecting rod (502) is smaller than the size of the upper opening and the lower opening of the limiting ring, the inner support (2) can be moved up and down by a worker, the proper height is adjusted, the limiting ring and the limiting pin (5) are aligned concentrically, the limiting pin (5) is pushed, the limiting rod (505) is propped against the side face of the U-shaped barrel A (106), at the moment, the limiting column B (504) enters the front limiting ring, the limiting column C (503) enters the rear limiting ring, and because the radius of the limiting column A (501), the limiting column B (504) and the limiting column C (503) is equal and slightly smaller than the inner diameter of the limiting ring, the inner support (2) is fixed, and when the inner support (2) is lowered, the worker lifts the limiting pin (5) out again, and slowly puts down the inner support (2).
The technical features of the present invention that are not described in the present invention may be implemented by or using the prior art, and are not described in detail herein, but the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, but is also intended to be within the scope of the present invention by those skilled in the art.
Claims (4)
1. The water turbine volute overhaul device is characterized by comprising an outer bracket, an inner bracket arranged in the outer bracket, a sliding component and a limiting component, wherein the sliding component and the limiting component are arranged on the outer bracket and the inner bracket;
the outer support comprises a bottom frame A and a top frame A, wherein the bottom frame A and the top frame A are rectangular frames, a pair of left support rods A and a pair of right support rods A are arranged on the left side and the right side between the top frame A and the bottom frame A, and a plurality of auxiliary support rods are arranged in the bottom frame;
the inner support comprises an underframe B and a top frame B, the underframe B and the top frame B are rectangular frames, and a pair of left support rods B and a pair of right support rods B are arranged on the left side and the right side between the underframe B and the top frame B;
a pair of auxiliary support rods A are arranged between the left support rod A and the right support rod A at the two sides and correspond to the left support rod B and the right support rod B, the top ends of the auxiliary support rods A are arranged on the top frame A, and the bottom ends of the auxiliary support rods are arranged on the bottom frame A;
the sliding assembly comprises a strip sliding rail arranged at the inner side of the auxiliary supporting rod A, and strip sliding blocks matched with the strip sliding rail for use are arranged at the outer sides of the left supporting rod B and the right supporting rod B;
an auxiliary support rod B is arranged between the left support rod B and the right support rod B on the same side of the inner support, the auxiliary support rod B is arranged in parallel with the left support rod B and the right support rod B, the top end of the auxiliary support rod B is arranged at the middle position of the long side of the top frame B, and the bottom end of the auxiliary support rod B is arranged at the middle position of the long side of the bottom frame B;
three short rods A are arranged on the inner sides of the left support rod B and the right support rod B along the length direction of the top frame B, the three short rods A are arranged in parallel, three short rods B are arranged on the two sides of the auxiliary support rod B along the length direction of the top frame B at positions corresponding to the short rods A, corresponding arc-shaped plates are arranged at the ends of the short rods A and the short rods B, and the corresponding arc-shaped plates form limiting rings with upper and lower openings;
a pair of U-shaped cylinders A with two open ends are arranged on the front side of the lower end face of the top frame A, a pair of U-shaped cylinders B with one open end and the other closed end are arranged on the rear side of the lower end face of the top frame A, and the corresponding U-shaped cylinders A and the corresponding U-shaped cylinders B are concentrically arranged;
the limiting mechanism further comprises a limiting pin, and one end of the limiting pin sequentially penetrates through the U-shaped cylinder A, the limiting ring at the front side and the limiting ring at the rear side and is arranged in the U-shaped cylinder B;
the limiting pin comprises a limiting column A, wherein two ends of the limiting column A are respectively provided with a limiting column B and a limiting column C through a cylindrical connecting rod, the limiting column B is arranged in the U-shaped cylinder A, and the limiting column C is arranged in the U-shaped cylinder B;
the radius of the limit post A, the radius of the limit post B and the radius of the limit post C are equal, the radius of the limit post B and the radius of the limit post C are slightly smaller than the inner diameter of the limit ring, and the diameter of the cross section of the connecting rod is smaller than the size of the upper opening and the lower opening of the limit ring;
semicircular bulges are arranged on two sides of the inner surfaces of the U-shaped cylinder A and the U-shaped cylinder B, sliding grooves matched with the semicircular bulges are formed in the outer surfaces of the limiting columns A, B and C, a pair of limiting rods are symmetrically arranged on the outer surface of one end of the outer part of the limiting column B positioned outside the U-shaped cylinder A, and L-shaped limiting rods matched with the limiting rods are arranged on the outer side of the U-shaped cylinder A;
the outer support minor face one side is fixed to be provided with down fixed ladder, down fixed ladder top sets up roof-rack A side, bottom setting are in chassis A side, lie in fixed ladder inboard be provided with down fixed ladder on the inner support, it is in to go up fixed ladder top setting roof-rack B side, bottom setting are in chassis B side.
2. The hydroturbine volute maintenance device of claim 1, wherein a top plate is arranged on the top of the inner bracket, and a guardrail is arranged on the top plate.
3. The hydroturbine volute maintenance device of claim 1, wherein a cushion block which is flush with the outer side of the U-shaped barrel B is arranged on one side of the bottom frame A and one side of the top frame A, which are close to the U-shaped barrel B.
4. A hydroturbine volute maintenance device according to any of claims 1-3, wherein a plurality of weights are arranged between the auxiliary stay bars and the chassis a, and universal wheels are arranged at the bottom of the chassis a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340407.1A CN109930807B (en) | 2019-04-25 | 2019-04-25 | Water turbine volute overhauling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340407.1A CN109930807B (en) | 2019-04-25 | 2019-04-25 | Water turbine volute overhauling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109930807A CN109930807A (en) | 2019-06-25 |
| CN109930807B true CN109930807B (en) | 2024-02-13 |
Family
ID=66990917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910340407.1A Active CN109930807B (en) | 2019-04-25 | 2019-04-25 | Water turbine volute overhauling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109930807B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10110526A (en) * | 1996-10-07 | 1998-04-28 | Seki Create Internatl Kk | Elevating scaffold |
| CN203499232U (en) * | 2013-09-02 | 2014-03-26 | 河南天立建筑工程技术有限公司 | Attached lifting scaffold |
| CN106144979A (en) * | 2016-08-29 | 2016-11-23 | 广州市新旗专利技术推广服务有限公司 | A kind of hoistable platform |
| CN208441437U (en) * | 2018-06-11 | 2019-01-29 | 湖南华铝机械技术有限公司 | A kind of undercarriage dismounting auxiliary hoistable platform |
| CN109668122A (en) * | 2019-01-07 | 2019-04-23 | 广州筑梦灯光设备有限公司 | A kind of lead screw motor zooming control device of stage lamp |
| CN210263845U (en) * | 2019-04-25 | 2020-04-07 | 国家电网有限公司 | Spiral case overhauling device of water turbine |
-
2019
- 2019-04-25 CN CN201910340407.1A patent/CN109930807B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10110526A (en) * | 1996-10-07 | 1998-04-28 | Seki Create Internatl Kk | Elevating scaffold |
| CN203499232U (en) * | 2013-09-02 | 2014-03-26 | 河南天立建筑工程技术有限公司 | Attached lifting scaffold |
| CN106144979A (en) * | 2016-08-29 | 2016-11-23 | 广州市新旗专利技术推广服务有限公司 | A kind of hoistable platform |
| CN208441437U (en) * | 2018-06-11 | 2019-01-29 | 湖南华铝机械技术有限公司 | A kind of undercarriage dismounting auxiliary hoistable platform |
| CN109668122A (en) * | 2019-01-07 | 2019-04-23 | 广州筑梦灯光设备有限公司 | A kind of lead screw motor zooming control device of stage lamp |
| CN210263845U (en) * | 2019-04-25 | 2020-04-07 | 国家电网有限公司 | Spiral case overhauling device of water turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109930807A (en) | 2019-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110722275A (en) | Jacking mechanism of lithium battery laser welding fixture | |
| CN109930807B (en) | Water turbine volute overhauling device | |
| CN213199813U (en) | Shallow for building erection engineering | |
| CN210263845U (en) | Spiral case overhauling device of water turbine | |
| CN205183341U (en) | Vertical frame guide and guard beam | |
| CN208329558U (en) | A kind of building engineering construction scaffold that stability is good | |
| CN211997706U (en) | Lifting mechanism of lifting baffle | |
| CN205916974U (en) | Adjustable lifting platform | |
| CN211448067U (en) | Corrosion-resistant railway steel mould guardrail | |
| CN220845383U (en) | Stacker maintenance device | |
| CN202346695U (en) | Lifting mechanism of pressing roll fixing frame for upper door frame of heavy H-shaped steel assembling machine | |
| CN216472115U (en) | Aerial working platform with adjustable width | |
| CN213619747U (en) | Retractable track traffic dolly of patrolling and examining fast | |
| CN106915679B (en) | Elevator carriage guide | |
| CN218988618U (en) | Bridge crane convenient to change electric block | |
| CN108999082A (en) | A kind of bridge inspection and maintenance platform | |
| CN221169625U (en) | Transverse self-moving unit bracket | |
| CN220177853U (en) | Oblique wedge dismounting device for roller shifting cylinder of rolling mill | |
| CN213979835U (en) | Scaffold convenient to remove | |
| CN110748140A (en) | Track beam hanging basket special for stepped curtain wall | |
| CN221185352U (en) | L-shaped welding platform | |
| CN215210739U (en) | Rail guard for municipal works | |
| CN218454558U (en) | Carrying frame | |
| CN219951687U (en) | Anti-collision bridge outside construction trolley | |
| CN209953974U (en) | Lifting platform of gantry type automatic submerged arc welding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |