CN112854701A - But height-adjusting's stable form engineering construction scaffold - Google Patents
But height-adjusting's stable form engineering construction scaffold Download PDFInfo
- Publication number
- CN112854701A CN112854701A CN202110052633.7A CN202110052633A CN112854701A CN 112854701 A CN112854701 A CN 112854701A CN 202110052633 A CN202110052633 A CN 202110052633A CN 112854701 A CN112854701 A CN 112854701A
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- China
- Prior art keywords
- sliding
- rod
- base
- workbench
- scaffold
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
- E04G1/152—Platforms made of metal or with metal-supporting frame
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/18—Scaffolds primarily resting on the ground adjustable in height
- E04G1/22—Scaffolds having a platform on an extensible substructure, e.g. of telescopic type or with lazy-tongs mechanism
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Movable Scaffolding (AREA)
Abstract
The invention discloses a stable engineering construction scaffold with adjustable height, relates to the technical field of building construction, and solves the problems that the operation area of the existing scaffold is small, so that the requirement of constructors is difficult to meet, and the stability of the scaffold is poor. A stable type engineering construction scaffold with adjustable height comprises a base; a supporting plate is fixedly arranged on the outer side of the sliding block through a bolt; the top of the base is rotatably provided with a scissor mechanism through a hinge connection; the top of the scissor fork mechanism is rotatably provided with a workbench through a hinge connection; a sliding table is arranged on the front side of the top of the workbench in a sliding manner; by arranging the base and the supporting plate, the device can be used more stably on the lands with various geology, and the safety of the device is enhanced; through being provided with workstation and sliding stand, can make this device be applicable to more construction conditions and construction space, very big use that has made things convenient for constructor has good practicality.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a stable engineering construction scaffold with adjustable height.
Background
The scaffold is a working platform which is set up to ensure that each construction process is smoothly carried out. The scaffold is divided into an outer scaffold and an inner scaffold according to the erected positions; the scaffold can be divided into a wood scaffold, a bamboo scaffold and a steel pipe scaffold according to different materials; the scaffold is divided into a vertical rod type scaffold, a bridge type scaffold, a door type scaffold, a suspension type scaffold, a hanging type scaffold, a lifting type scaffold and a climbing type scaffold according to the structural form.
Through search, for example, patent No. CN112049393A discloses a stable engineering construction scaffold with adjustable height, which comprises a base, a guide rod and a lifting assembly; guide rods are vertically fixed on two sides of the surface of the base, a sliding plate is arranged between the two guide rods, square holes matched with the guide rods are symmetrically formed in the surface of the sliding plate, protrusions are outwards extended from two sides of the inner wall of each square hole, and grooves are formed in the positions, corresponding to the protrusions, of the surface of each guide rod; the top ends of the two guide rods are provided with top plates, and the surfaces of the top plates are provided with lifting assemblies; the lifting assembly comprises a driving motor, a first gear and a second gear; the driving motor is fixed in the middle of the surface of the top plate, and the output end of the driving motor is fixedly connected with a rotating shaft; the sliding plate can stably slide on the guide rod through the action of the lifting assembly and the sliding plate, the purpose of adjusting the height is achieved, and the stability of the sliding plate can be ensured through the meshing of the first gear and the second gear.
However, current builder's in-process of using, because the operation area of scaffold is less, be difficult to satisfy constructor's demand, can't be according to the region of different construction condition adjustment work platforms, and the transport article of being not convenient for fast after the scaffold rises, the scaffold in addition when using in softer soil department, the support of bottom is sunken into in the soil easily and takes place gliding phenomenon even, lead to the stability of scaffold relatively poor, consequently, unsatisfied current demand, but we have proposed a height-adjusting's stable form engineering construction scaffold to this.
Disclosure of Invention
Problem (A)
The invention aims to provide a stable type engineering construction scaffold with adjustable height, which solves the problems that in the using process of the existing construction scaffold in the background technology, the operation area of the construction scaffold is small, the requirements of constructors are difficult to meet, the area of a workbench cannot be adjusted according to different construction conditions, articles are inconvenient to transport quickly after the construction scaffold is lifted, and when the construction scaffold is used in soft soil, a support at the bottom is easy to sink into the soil and even slides, so that the stability of the construction scaffold is poor.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a stable type engineering construction scaffold with adjustable height comprises a base; the left side and the right side of the base are both rotatably provided with idler wheels through hinged connection, and the top of the base is provided with a sliding chute; the base also comprises a guide rail and a sliding block; guide rails are fixedly arranged on the two sides of the front side and the rear side of the base through bolts; a sliding block is arranged on the outer side of the guide rail in a sliding manner; a supporting plate is fixedly arranged on the outer side of the sliding block through a bolt; the top of the base is rotatably provided with a scissor mechanism through a hinge connection; the top of the scissor fork mechanism is rotatably provided with a workbench through a hinge connection, and the bottom of the workbench is provided with a chute; the sliding table is arranged on the front side of the top of the workbench in a sliding mode, and a protective guard is arranged on the top of the sliding table through welding.
Furthermore, the base also comprises a screw and a connecting block; trapezoidal sliding grooves are formed in the front side and the rear side of the base; the trapezoidal chutes on the front side and the rear side of the base are internally and rotatably provided with a screw rod through hinged connection; the trapezoidal sliding grooves on the front side and the rear side of the base are internally provided with connecting blocks in a sliding manner, and the top of each connecting block is provided with a screw hole; the outer side of the connecting block is fixedly connected with the sliding block.
Furthermore, the supporting plate also comprises a sliding rod, a sleeve, a supporting rod and a fixing rod; the bottoms of the two sides of the supporting plate are respectively fixedly provided with a sliding rod, and the outer side of each sliding rod is sleeved with a spring; the bottom of the sliding rod is provided with a sleeve in a sliding manner, and the bottom of the sleeve is of a conical structure; the outer side of the sleeve is rotatably provided with a support rod through hinge connection; the bottom of the supporting plate is rotatably provided with a fixed rod through hinge connection, and the bottom of the fixed rod is provided with an anti-slip groove; the other end of the stay bar is rotatably connected with the inner side of the fixed bar.
Furthermore, the scissor mechanism also comprises a connecting rod, a hydraulic cylinder and a hydraulic rod; the shearing fork mechanism is formed by connecting a plurality of groups of connecting rods in a crossed state through hinges; the inner side of the scissor mechanism is provided with a hydraulic cylinder through welding, and the hydraulic cylinder is rotationally connected with a group of connecting rods on the upper side through a rotating shaft; the bottom of pneumatic cylinder slides and is provided with the hydraulic stem, and the bottom of hydraulic stem is through pivot and a set of connecting rod swivelling joint of downside.
Furthermore, the workbench also comprises a groove rail and a rack; the top of the workbench is fixedly provided with a guardrail through welding; the top of the workbench is provided with a groove rail; the top of the workbench is fixedly provided with a rack.
Furthermore, the workbench also comprises a wire take-up roller and a motor; the rear side of the bottom of the workbench is rotatably provided with a wire receiving roller through a hinge; the rear side of the bottom of the workbench is fixedly provided with a motor through a bolt, and the motor is in transmission connection with the take-up roller.
Furthermore, the sliding table also comprises a gear, a worm wheel and a worm; the bottom of the sliding table is provided with a clamping groove clamped with the groove rail; the bottom of the sliding table is rotatably provided with a gear through hinge connection, and the gear is meshed with the rack; the top of the gear is coaxially provided with a worm gear; the top of the sliding table is rotatably provided with a worm through a hinge connection, and the worm is meshed with the worm wheel.
(III) advantageous effects
The invention provides a stable type engineering construction scaffold with adjustable height, which is provided with a base and a support plate, wherein a connecting block is driven to slide along a trapezoidal sliding groove by rotating a screw rod, so that a sliding block is driven to slide along a guide rail, the support plate is driven to slide, the bottom of the support plate is connected with the ground, a sleeve upwards slides along a sliding rod under the action of gravity, and meanwhile, a fixing rod is driven to be unfolded through a support rod and is in contact with the ground, so that the stability of the support plate is improved, the device can be used on the lands with various geologies more stably, and the safety of the device is enhanced.
Through being provided with workstation and sliding stand, cut fork mechanism through the start and raise the back with the workstation, when need enlarge work area, rotatory worm drives the worm wheel rotatory, and it is rotatory to drive the gear, slide the sliding stand to one side of workstation through the cooperation of gear and rack, when needing materials such as handling instrument, it is rotatory to drive the line roller of receiving through the motor, can carry out quick handling through the cable, thereby can make this device be applicable to more construction conditions and construction space, the very big use that has made things convenient for constructor, good practicality has.
Drawings
FIG. 1 is a schematic perspective view of an axial side of an embodiment of the present invention;
FIG. 2 is a schematic front perspective view of an embodiment of the present invention;
FIG. 3 is a schematic top view of an embodiment of the present invention;
FIG. 4 is a schematic view of a base structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a supporting plate according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a workbench and a sliding table in an embodiment of the present invention;
in fig. 1 to 6, the correspondence between the part names or lines and the reference numbers is:
1. a base; 101. a guide rail; 102. a slider; 103. a screw; 104. connecting blocks; 2. a support plate; 201. a slide bar; 202. a sleeve; 203. a stay bar; 204. fixing the rod; 3. a scissor mechanism; 301. a connecting rod; 302. a hydraulic cylinder; 303. a hydraulic lever; 4. a work table; 401. a groove rail; 402. a rack; 403. a wire take-up roller; 404. a motor; 5. a sliding table; 501. a gear; 502. a worm gear; 503. a worm.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 6, an embodiment of the present invention includes: a stable type engineering construction scaffold with adjustable height comprises a base 1; the left side and the right side of the base 1 are both rotatably provided with idler wheels through hinged connection, and the top of the base 1 is provided with a sliding chute; the base 1 also comprises a guide rail 101 and a slide block 102; guide rails 101 are fixedly arranged on the front side and the rear side of the base 1 through bolts; a sliding block 102 is arranged on the outer side of the guide rail 101 in a sliding manner; the outer side of the sliding block 102 is fixedly provided with a supporting plate 2 through a bolt; wherein, the supporting plate 2 further comprises a sliding rod 201, a sleeve 202, a brace rod 203 and a fixing rod 204; the bottoms of the two sides of the supporting plate 2 are both fixedly provided with a sliding rod 201, and the outer side of the sliding rod 201 is sleeved with a spring; a sleeve 202 is arranged at the bottom of the sliding rod 201 in a sliding manner, and the bottom of the sleeve 202 is of a conical structure; the outside of the sleeve 202 is rotatably provided with a support rod 203 through hinged connection; the bottom of the supporting plate 2 is rotatably provided with a fixing rod 204 through hinge connection, and the bottom of the fixing rod 204 is provided with an anti-slip groove; the other end of the support rod 203 is rotatably connected with the inner side of the fixed rod 204; the top of the base 1 is rotatably provided with a scissor mechanism 3 through hinge connection; the scissor mechanism 3 further comprises a connecting rod 301, a hydraulic cylinder 302 and a hydraulic rod 303; the scissor mechanism 3 is formed by a plurality of groups of connecting rods 301 which are connected in a crossed state through hinges; the inner side of the scissor mechanism 3 is provided with a hydraulic cylinder 302 through welding, and the hydraulic cylinder 302 is rotationally connected with the upper group of connecting rods 301 through a rotating shaft; the bottom of the hydraulic cylinder 302 is provided with a hydraulic rod 303 in a sliding manner, and the bottom of the hydraulic rod 303 is rotationally connected with the lower group of connecting rods 301 through a rotating shaft; the top of the scissor mechanism 3 is rotatably provided with a workbench 4 through a hinge connection, and the bottom of the workbench 4 is provided with a chute; wherein, the working table 4 further comprises a groove rail 401 and a rack 402; the top of the working table 4 is fixedly provided with a guardrail through welding; the top of the working table 4 is provided with a groove rail 401; a rack 402 is fixedly arranged at the top of the workbench 4; a sliding table 5 is arranged on the front side of the top of the working table 4 in a sliding manner, and a protective guard is arranged on the top of the sliding table 5 in a welding manner; wherein, the sliding table 5 further comprises a gear 501, a worm wheel 502 and a worm 503; the bottom of the sliding table 5 is provided with a clamping groove clamped with the groove rail 401; the bottom of the sliding table 5 is rotatably provided with a gear 501 through hinge connection, and the gear 501 is meshed with the rack 402; a worm gear 502 is coaxially arranged at the top of the gear 501; the top of the sliding table 5 is rotatably provided with a worm 503 through a hinge connection, and the worm 503 is engaged with the worm wheel 502.
Wherein, the base 1 also comprises a screw 103 and a connecting block 104; trapezoidal sliding grooves are formed in the front side and the rear side of the base 1; a screw 103 is rotatably arranged in the trapezoidal chutes at the front side and the rear side of the base 1 through hinge connection; the trapezoidal sliding grooves on the front side and the rear side of the base 1 are internally provided with a connecting block 104 in a sliding manner, and the top of the connecting block 104 is provided with a screw hole; the outer side of the connecting block 104 is fixedly connected with the sliding block 102; the connecting block 104 is driven by rotating the screw 103 to slide up and down along the trapezoidal sliding groove, so as to drive the support plate 2 to slide up and down along the guide rail 101.
Wherein, the workbench 4 further comprises a take-up roller 403 and a motor 404; the rear side of the bottom of the workbench 4 is rotatably provided with a wire receiving roller 403 through hinge connection; a motor 404 is fixedly arranged at the rear side of the bottom of the workbench 4 through a bolt, and the motor 404 is in transmission connection with the take-up roller 403; the motor 404 drives the wire take-up roller 403 to rotate, so that materials such as tools can be quickly lifted through cables.
The working principle is as follows: after the base 1 is slid to a proper position, the rotary screw 103 drives the connecting block 104 to slide along the trapezoid sliding groove, so as to drive the sliding block 102 to slide along the guide rail 101, thereby driving the supporting plate 2 to slide, so that the bottom of the supporting plate 2 is connected with the ground, the sleeve 202 slides upwards along the sliding rod 201 under the action of gravity, meanwhile, the fixing rod 204 is driven by the supporting rod 203 to be unfolded and contacted with the ground, the stability of the supporting plate 2 is increased, the hydraulic cylinder 302 is started to drive the scissors mechanism 3 to be unfolded, thereby lifting the workbench 4, when the working area needs to be enlarged, the rotary worm 503 drives the worm wheel 502 to rotate and drives the gear 501 to rotate, the sliding table 5 is slid to one side of the workbench 4 by the matching of the gear 501 and the rack 402, when materials such as tools need to be lifted, the wire collecting roller 403.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a but height-adjusting's stable form engineering construction scaffold which characterized in that: comprises a base (1); the left side and the right side of the base (1) are both rotatably provided with idler wheels through hinged connection, and the top of the base (1) is provided with a sliding chute; the base (1) also comprises a guide rail (101) and a sliding block (102); guide rails (101) are fixedly arranged on the front side and the rear side of the base (1) through bolts; a sliding block (102) is arranged on the outer side of the guide rail (101) in a sliding manner; a support plate (2) is fixedly arranged on the outer side of the sliding block (102) through a bolt; the top of the base (1) is rotatably provided with a scissor mechanism (3) through hinge connection; the top of the scissor mechanism (3) is rotatably provided with a workbench (4) through hinge connection, and the bottom of the workbench (4) is provided with a sliding chute; the top front side of workstation (4) slides and is provided with sliding stand (5), and the top of sliding stand (5) is provided with the rail guard through the welding.
2. A stabilized type of construction scaffold with adjustable height according to claim 1, wherein: the base (1) also comprises a screw rod (103) and a connecting block (104); trapezoidal sliding grooves are formed in the front side and the rear side of the base (1); a screw rod (103) is rotatably arranged in the trapezoidal sliding grooves at the front side and the rear side of the base (1) through hinged connection; the trapezoidal sliding grooves on the front side and the rear side of the base (1) are internally provided with a connecting block (104) in a sliding manner, and the top of the connecting block (104) is provided with a screw hole; the outer side of the connecting block (104) is fixedly connected with the sliding block (102).
3. A stabilized type of construction scaffold with adjustable height according to claim 1, wherein: the supporting plate (2) also comprises a sliding rod (201), a sleeve (202), a support rod (203) and a fixing rod (204); the bottoms of the two sides of the supporting plate (2) are respectively and fixedly provided with a sliding rod (201), and the outer side of each sliding rod (201) is sleeved with a spring; the bottom of the sliding rod (201) is provided with a sleeve (202) in a sliding manner, and the bottom of the sleeve (202) is of a conical structure; the outer side of the sleeve (202) is rotatably provided with a support rod (203) through hinged connection; the bottom of the supporting plate (2) is rotatably provided with a fixing rod (204) through hinged connection, and the bottom of the fixing rod (204) is provided with an anti-skidding groove; the other end of the stay bar (203) is rotatably connected with the inner side of the fixed bar (204).
4. A stabilized type of construction scaffold with adjustable height according to claim 1, wherein: the scissor mechanism (3) further comprises a connecting rod (301), a hydraulic cylinder (302) and a hydraulic rod (303); the scissor fork mechanism (3) is formed by a plurality of groups of connecting rods (301) which are connected in a crossed state through hinges; the inner side of the scissor mechanism (3) is provided with a hydraulic cylinder (302) by welding, and the hydraulic cylinder (302) is rotationally connected with the upper group of connecting rods (301) by a rotating shaft; the bottom of the hydraulic cylinder (302) is provided with a hydraulic rod (303) in a sliding manner, and the bottom of the hydraulic rod (303) is rotatably connected with the lower group of connecting rods (301) through a rotating shaft.
5. A stabilized type of construction scaffold with adjustable height according to claim 1, wherein: the workbench (4) also comprises a groove rail (401) and a rack (402); the top of the workbench (4) is fixedly provided with a guardrail by welding; the top of the working table (4) is provided with a groove rail (401); the top of the working table (4) is fixedly provided with a rack (402).
6. A stabilized type of construction scaffold with adjustable height according to claim 1, wherein: the workbench (4) also comprises a wire take-up roller (403) and a motor (404); the rear side of the bottom of the workbench (4) is rotatably provided with a wire receiving roller (403) through hinge connection; the rear side of the bottom of the workbench (4) is fixedly provided with a motor (404) through a bolt, and the motor (404) is in transmission connection with the wire take-up roller (403).
7. A stabilized type of construction scaffold with adjustable height according to claim 1, wherein: the sliding table (5) also comprises a gear (501), a worm wheel (502) and a worm (503); the bottom of the sliding table (5) is provided with a clamping groove clamped with the groove rail (401); the bottom of the sliding table (5) is rotatably provided with a gear (501) through hinged connection, and the gear (501) is meshed with the rack (402); a worm wheel (502) is coaxially arranged at the top of the gear (501); the top of the sliding table (5) is rotatably provided with a worm (503) through hinged connection, and the worm (503) is meshed with the worm wheel (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052633.7A CN112854701A (en) | 2021-01-15 | 2021-01-15 | But height-adjusting's stable form engineering construction scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052633.7A CN112854701A (en) | 2021-01-15 | 2021-01-15 | But height-adjusting's stable form engineering construction scaffold |
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| Publication Number | Publication Date |
|---|---|
| CN112854701A true CN112854701A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110052633.7A Pending CN112854701A (en) | 2021-01-15 | 2021-01-15 | But height-adjusting's stable form engineering construction scaffold |
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| Country | Link |
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| CN (1) | CN112854701A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5992565A (en) * | 1994-03-03 | 1999-11-30 | Lingen; Paul | Lifting scaffold assembly |
| CN203658398U (en) * | 2014-01-02 | 2014-06-18 | 上海理工大学 | Automatic test tool |
| CN204454479U (en) * | 2014-12-28 | 2015-07-08 | 浙江鼎力机械股份有限公司 | The platform assembly of bridge-type job platform |
| CN207327189U (en) * | 2017-10-28 | 2018-05-08 | 深圳市富丽法雷尔家私制造有限公司 | A kind of liftable plate shearing machine of saw blade |
| CN209815611U (en) * | 2019-04-18 | 2019-12-20 | 安徽省博润电力技术有限公司 | Lifting platform for scaffold |
| CN209924395U (en) * | 2019-03-06 | 2020-01-10 | 西安翻译学院 | Scaffold for building construction |
| CN111531373A (en) * | 2020-05-13 | 2020-08-14 | 沈凤美 | Lifting drilling machine with foldable supporting machining platform |
| CN212338673U (en) * | 2020-05-07 | 2021-01-12 | 上海三火文化传媒有限公司 | Portable information image gathers uses support |
-
2021
- 2021-01-15 CN CN202110052633.7A patent/CN112854701A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5992565A (en) * | 1994-03-03 | 1999-11-30 | Lingen; Paul | Lifting scaffold assembly |
| CN203658398U (en) * | 2014-01-02 | 2014-06-18 | 上海理工大学 | Automatic test tool |
| CN204454479U (en) * | 2014-12-28 | 2015-07-08 | 浙江鼎力机械股份有限公司 | The platform assembly of bridge-type job platform |
| CN207327189U (en) * | 2017-10-28 | 2018-05-08 | 深圳市富丽法雷尔家私制造有限公司 | A kind of liftable plate shearing machine of saw blade |
| CN209924395U (en) * | 2019-03-06 | 2020-01-10 | 西安翻译学院 | Scaffold for building construction |
| CN209815611U (en) * | 2019-04-18 | 2019-12-20 | 安徽省博润电力技术有限公司 | Lifting platform for scaffold |
| CN212338673U (en) * | 2020-05-07 | 2021-01-12 | 上海三火文化传媒有限公司 | Portable information image gathers uses support |
| CN111531373A (en) * | 2020-05-13 | 2020-08-14 | 沈凤美 | Lifting drilling machine with foldable supporting machining platform |
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Application publication date: 20210528 |
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| RJ01 | Rejection of invention patent application after publication |