CN113889907A - Live working platform convenient to installation - Google Patents
Live working platform convenient to installation Download PDFInfo
- Publication number
- CN113889907A CN113889907A CN202111267717.9A CN202111267717A CN113889907A CN 113889907 A CN113889907 A CN 113889907A CN 202111267717 A CN202111267717 A CN 202111267717A CN 113889907 A CN113889907 A CN 113889907A
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- column
- bevel gear
- sliding
- supporting
- block
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- 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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a hot-line work platform convenient to install, which comprises a rotating assembly, a supporting assembly and a fixing assembly, wherein the rotating assembly comprises a rotating column, a first bevel gear, a second bevel gear, a handle, a sliding column and a moving ring, the supporting assembly comprises a supporting platform, a protective guard, a supporting rod and a second connecting block, and the fixing assembly comprises a first anchor ear and a second anchor ear. The device is provided with the second bevel gear, the first bevel gear and the rotating column, the rotating column rotates to drive the moving ring to slide on the sliding column, the length of the supporting rod is prolonged, the supporting platform rotates to the horizontal position, the assembly and disassembly are simple and easy, and can be completed by one person.
Description
Technical Field
The invention relates to the technical field of live working, in particular to a live working platform convenient to install.
Background
Most of live-line work platforms on the market at the present stage are heavy, multiple people are needed for installation, and the live-line work cannot be rapidly and simply carried out on the distribution lines which cannot be approached by the insulating bucket arm vehicle in the fields, mountainous areas, narrow areas and the like. Therefore, if a live working platform which is light in weight, firm in structure, reliable in insulation and simple to assemble and disassemble can be developed, various requirements of field operation can be met, the problem of live working in mountainous areas is solved, and the working items of the live working are expanded.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems with existing live working platforms that facilitate installation.
Therefore, the problem to be solved by the present invention is how to provide a hot-line work platform that is easy to install.
In order to solve the technical problems, the invention provides the following technical scheme: a hot-line work platform convenient to install comprises a rotating assembly, wherein the rotating assembly comprises a rotating column, the upper end of the rotating column is provided with a first connecting column, a second connecting column is arranged above the first connecting column, and the surface of the first connecting column is provided with a threaded sliding groove; the end with the larger diameter of the first bevel gear is fixedly connected with the second connecting column, and the end with the smaller diameter of the first bevel gear is fixedly connected with the first connecting column; a second bevel gear engaged with the first bevel gear; and one end of the handle is fixedly connected with one end of the second bevel gear.
As a preferable aspect of the easy-to-install hot-line work platform of the present invention, wherein: the rotating assembly further comprises a sliding column, the interior of the sliding column is hollow, and the rotating column is arranged in the sliding column; a first chute is arranged on the side surface of the first sliding chute; the support box is arranged outside the sliding column, the first bevel gear and the second bevel gear are positioned inside the support box, and one end of the handle penetrates through the support box and is fixedly connected with one end of the second bevel gear; and the moving ring is sleeved outside the sliding column, a sliding block is arranged on the inner side of a fixed ball arranged outside the moving ring, and the sliding block penetrates through the first sliding groove and is introduced into the threaded sliding groove.
As a preferable aspect of the easy-to-install hot-line work platform of the present invention, wherein: the sliding column is provided with a circular groove at the upper end, and a circular ring is arranged above the second connecting column and matched with the circular groove.
As a preferable aspect of the easy-to-install hot-line work platform of the present invention, wherein: the supporting assembly comprises a supporting platform, a plurality of supporting plates are arranged in the supporting platform, and a first connecting block is arranged on the inner side of the supporting platform; the protective guard is arranged on the surface of the supporting platform through bolts; one end of the supporting rod is hinged with the first connecting block; and one end of the second connecting block is concave and provided with a first through hole, and the other end of the second connecting block is arc-shaped and provided with a second through hole.
As a preferable aspect of the easy-to-install hot-line work platform of the present invention, wherein: a round long hole is formed in one end of the supporting rod, and a second sliding groove is formed in the position outside the supporting rod where the round long hole is located.
As a preferable aspect of the easy-to-install hot-line work platform of the present invention, wherein: the bracing piece is including setting up in its inside movable rod, the movable rod wears out the one end of bracing piece is provided with connects the ball, set up in the fixed ball is outside, connect the ball side and seted up the third spout.
As a preferable aspect of the easy-to-install hot-line work platform of the present invention, wherein: one end of the supporting platform is provided with a groove, a notch is formed below the groove, and a fixing column is arranged inside the notch and penetrates through the first through hole to be fixed with the inner side of the notch.
As a preferable aspect of the easy-to-install hot-line work platform of the present invention, wherein: the fixing component comprises a first hoop, a first fixing block and a second fixing block are arranged on the outer side of the first hoop, the first fixing block and the second connecting block are fixed at the second through hole through bolts, and the second fixing block is connected with the upper portion of the sliding column through threads; and a third fixing block is arranged on the outer side of the second anchor ear, and a third through hole is formed in the surface of the third fixing block.
As a preferable aspect of the easy-to-install hot-line work platform of the present invention, wherein: and a fourth fixed block is arranged on the outer side of the movable ring, a fourth through hole is formed in the surface of the fourth fixed block, and the fourth fixed block and the third fixed block are fixed at the third through hole through bolts.
As a preferable aspect of the easy-to-install hot-line work platform of the present invention, wherein: and a rotating plate is arranged on the surface of the second connecting block and matched with the groove.
The invention has the beneficial effects that: the hot-line work platform of this scheme light in weight, sturdy structure, insulating reliable, loading and unloading are simple, need not many people and install, rotate the handle and can be through aggregate unit with work platform rotation to horizontal position, can be quick simple carry out hot-line work.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a partial view of a rotating assembly of a hot-line work platform for ease of installation.
Fig. 2 is a partial view of a rotating column of the hot-line work platform for ease of installation.
Fig. 3 is a partial view of a sliding column of the hot-line work platform for ease of installation.
Fig. 4 is another partial view of a rotating assembly of a hot line work platform for ease of installation.
Fig. 5 is a partial view of a support platform of the hot-line work platform for ease of installation.
Fig. 6 is an enlarged view of the moving ring of the hot-line work platform for ease of installation.
Fig. 7 is a view showing a structure of a support bar of the hot-line work platform for easy installation.
Fig. 8 is a side view of the hot-line work platform for ease of installation.
Fig. 9 is an overall view of the hot-line work platform for easy mounting.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, a first embodiment of the present invention provides an easy-to-install live working platform, which includes a rotating assembly 100, the rotating assembly 100 including a rotating post 101, a first bevel gear 102, a second bevel gear 103, and a handle 104.
Specifically, a first connecting column 101a is arranged at the upper end of the rotating column 101, a second connecting column 101b is arranged above the first connecting column 101a, a threaded chute 101c is formed in the surface of the first connecting column 101a, the diameter of the first connecting column 101a is smaller than that of the second connecting column 101b, and a threaded chute 101c is formed in the surface of the rotating column 101 to enable the external sliding block to move along the threaded chute 101 c; the end with the larger diameter of the first bevel gear 102 is fixedly connected with the second connecting column 101b, and the end with the smaller diameter is fixedly connected with the first connecting column 101 a; the second bevel gear 103 is meshed with the first bevel gear 102; one end of the handle 104 is fixedly connected with one end of the second bevel gear 103, the rotating handle 104 drives the second bevel gear 103 fixed with the rotating handle to rotate, the second bevel gear 103 drives the first bevel gear 102 meshed with the second bevel gear to rotate, the first bevel gear 102 rotates to drive the rotating column 101 fixedly connected with the first bevel gear to rotate, and therefore when the handle 104 is rotated, the rotating column 101 rotates.
When the handle 104 is rotated, the handle 104 rotates to drive the second bevel gear 103 fixed with the handle to rotate, the second bevel gear 103 drives the first bevel gear 102 meshed with the second bevel gear to rotate, the first bevel gear 102 rotates to drive the rotating column 101 fixedly connected with the first bevel gear to rotate, and therefore when the handle 104 is rotated, the rotating column 101 rotates.
Example 2
Referring to fig. 1 to 8, a second embodiment of the present invention is based on the above embodiment.
Specifically, the rotating assembly 100 further includes a sliding column 105, a support box 106, and a moving ring 107. The sliding column 105 is hollow, and the rotating column 101 is arranged inside the sliding column; the side surface is provided with a first chute 105 a. The supporting box 106 is arranged outside the sliding column 105 and is used for supporting the handle 104 and the second bevel gear 103, the first bevel gear 102 and the second bevel gear 103 are positioned inside the supporting box 106, and one end of the handle 104 penetrates through the supporting box 106 and is fixedly connected with one end of the second bevel gear 103; the moving ring 107 is sleeved outside the sliding column 105, the fixed ball 107a is disposed outside the moving ring 107, the sliding block 107b is disposed inside the fixed ball 107a, penetrates through the first sliding groove 105a and is introduced into the threaded sliding groove 101c, when the rotating column 101 rotates, the threaded sliding groove 101c rotates simultaneously, the position of the threaded sliding groove 101c at the same vertical position changes relative to the sliding column 105, the sliding block 107b slides along the threaded sliding groove 101c, and the sliding block 107b can only move in the vertical direction due to the limitation of the first sliding groove 105a on the sliding block 107b, so that the sliding block 107b slides along the threaded sliding groove 101c and is displaced in the vertical direction.
Further, a support assembly 200 is also included, and the support assembly 200 includes a support platform 201, a guard rail 202, a support rod 203, and a second connection block 204. A plurality of supporting plates 201a are arranged in the supporting platform 201, the supporting platform 201 is made of glass fiber reinforced plastic materials and is sprayed with insulating paint, a first connecting block 201b is arranged on the inner side of the supporting platform 201, and when workers work, the workers can stand on the supporting platform 201 to work; the guard rail 202 is arranged on the surface of the supporting platform 201 through bolts, the guard rail 202 plays a role in protecting workers and prevents the workers from falling off the supporting platform 201, and the guard rail 202 is an epoxy resin insulating rod and is 20KV/3min in insulation level; one end of the supporting rod 203 is hinged with the first connecting block 201b, and the supporting rod 203 can rotate at the first connecting block 201 b; one end of the second connecting block 204 is concave and provided with a first through hole 204a, and the other end of the second connecting block is arc-shaped and provided with a second through hole 204 b.
Further, supporting platform 201 one end has been seted up recess 201c, and notch 201d has been seted up to recess 201c below, and notch 201d is inside to be provided with fixed column 201d, and it passes first through-hole 204a and notch 201d inboard fixed to fixed column 201d rotates as supporting platform 201.
Further, the upper end of the sliding column 105 is provided with a circular groove 105b, and a circular ring 101d is arranged above the second connecting column 101b and is matched with the circular groove 105b, so that when the rotating column 101 rotates, the circular ring 101d rotates in the circular groove 105b and simultaneously plays a supporting role for the rotating column 101.
When in use, the guard rail 202 is installed on the surface of the supporting platform 201 through a bolt, the handle 104 is rotated, the handle 104 rotates to drive the second bevel gear 103 fixed with the handle to rotate, the second bevel gear 103 drives the first bevel gear 102 engaged with the second bevel gear to rotate, the first bevel gear 102 rotates to drive the rotating column 101 fixedly connected with the first bevel gear to rotate, meanwhile, the threaded chute 101c rotates, the position of the threaded chute 101c at the same vertical position changes relative to the sliding column 105, the sliding block 107b slides along the threaded chute 101c, because the first chute 105a limits the sliding block 107b to move only in the vertical direction, therefore, the sliding block 107b slides along the threaded chute 101c to displace in the vertical direction, meanwhile, the moving ring 107 slides along the sliding column 105 to drive the supporting rod 203 to move and rotate along the first connecting block 201b, meanwhile, the fixed column 201d of the supporting platform 201 is used for rotating the shaft supporting platform 201, when the supporting platform 201 rotates to be perpendicular to the sliding column 105, the supporting platform stops rotating, the moving ring 107 moves through the matching of the second bevel gear 103 and the first bevel gear 102 rotating column 101 to drive the supporting rod 203 to rotate along the first connecting block 201b, the supporting platform 201 is installed, the cooperation of multiple persons is not needed, and the platform is simple and easy to mount and dismount and can be completed by one person.
Example 3
Referring to fig. 6 to 9, there is shown a third embodiment of the present invention, which is based on the first two embodiments.
Specifically, one end of the supporting rod 203 is provided with a circular long hole 203a, a second sliding groove 203b is formed outside the position of the supporting rod 203 where the circular long hole 203a is located, and the movable rod 203c can slide in the circular long hole 203a, so as to extend the length of the supporting rod 203.
Furthermore, the support rod 203 comprises a movable rod 203c arranged inside the support rod 203, a connecting ball 203c-1 is arranged at one end of the movable rod 203c, which penetrates out of the support rod 203, and is arranged outside the fixed ball 107a, a third chute 203c-11 is arranged on the side surface of the connecting ball 203c-1, the connecting ball 203c-1 is hollow inside and can wrap the fixed ball 107a and rotate along the fixed ball 107a, and when the connecting ball 203c-1 rotates, the third chute 203c-11 rotates along the joint of the fixed ball 107a and the movable ring 107, so that position limitation is avoided.
Further, a fixing assembly 300 is further included, and the fixing assembly 300 includes a first hoop 301 and a second hoop 302. The first anchor ear 301 and the second anchor ear 302 are installed on an electric pole to be maintained, a first fixing block 301a and a second fixing block 301b are arranged on the outer side of the first anchor ear 301, the first fixing block 301a and the second connecting block 204 are fixed at the second through hole 204b through bolts, so that the second connecting block 204 is fixed, and the second fixing block 301b is connected with the upper part of the sliding column 105 through threads to fix the sliding column 105; a third fixing block 302a is arranged outside the second anchor ear 302, a third through hole 302a-1 is formed in the surface of the third fixing block 302a, a fourth fixing block 107c is arranged outside the moving ring 107, a fourth through hole 107c-1 is formed in the surface of the moving ring, the third fixing block 302a and the moving ring are fixed at the third through hole 302a-1 through a bolt, and when the moving ring 107 moves to the second anchor ear 302, the third fixing block 302a is fixed through a bolt.
Further, the surface of the second connecting block 204 is provided with a rotating plate 204c, which is matched with the groove 201c, and when the supporting platform 201 rotates to the horizontal, the rotating plate 204c rotates to the groove 201 c.
When in use, the first anchor ear 301 and the second anchor ear 302 are installed on an electric pole to be maintained, the first fixing block 301a and the second connecting block 204 are fixed at the second through hole 204b through bolts, the guard rail 202 is installed on the surface of the supporting platform 201 through bolts, the handle 104 is rotated, the handle 104 rotates to drive the second bevel gear 103 fixed with the handle to rotate, the second bevel gear 103 drives the first bevel gear 102 engaged with the second bevel gear to rotate, the first bevel gear 102 rotates to drive the rotating column 101 fixedly connected with the first bevel gear to rotate, meanwhile, the threaded chute 101c rotates, the position of the threaded chute 101c at the same vertical position is changed for the sliding column 105, the sliding block 107b slides along the threaded chute 101c, and the sliding block 107b can only move in the vertical direction due to the limitation of the first chute 105a on the sliding block 107b, so that the sliding block 107b slides along the threaded chute 101c to displace in the vertical direction, meanwhile, the movable ring 107 slides along the sliding column 105 to drive the movable rod 203c to move, the supporting rod 203 rotates along the first connecting block 201b, the movable rod 203c slides in the circular long hole 203a to extend the length of the supporting rod 203, meanwhile, the supporting platform 201 fixed column 201d rotates for the shaft supporting platform 201, when the supporting platform 201 rotates to be vertical to the sliding column 105, the rotating plate 204c rotates into the groove 201c, the movable ring 107 is fixed with the third fixed block 302a through bolts, through the matching of the second bevel gear 103 and the first bevel gear 102 rotating column 101, the movable ring 107 moves to drive the supporting rod 203 to rotate along the first connecting block 201b, the installation of the supporting platform 201 is realized, the platform is simple and easy to assemble and disassemble, the platform can be completed by one person, and the platform is formed by combining light insulating materials and has a firm structure, Strong bearing capacity, reliable insulation and simple assembly and disassembly.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a live working platform convenient to installation which characterized in that: comprises a rotating assembly (100) which comprises,
the upper end of the rotating column (101) is provided with a first connecting column (101a), a second connecting column (101b) is arranged above the first connecting column (101a), and the surface of the rotating column is provided with a threaded sliding groove (101 c);
the first bevel gear (102), its one end with larger diameter is fixedly connected with said second joint pin (101b), the one end with smaller diameter is fixedly connected with said first joint pin (101 a);
a second bevel gear (103) that meshes with the first bevel gear (102); and the number of the first and second groups,
and one end of the handle (104) is fixedly connected with one end of the second bevel gear (103).
2. The live working platform of claim 1, wherein: the rotating assembly (100) further comprises,
a sliding column (105) which is hollow inside and the rotating column (101) is arranged inside; a first chute (105a) is arranged on the side surface of the sliding block;
the support box (106) is arranged outside the sliding column (105), the first bevel gear (102) and the second bevel gear (103) are positioned inside the support box (106), and one end of the handle (104) penetrates through the support box (106) to be fixedly connected with one end of the second bevel gear (103); and the number of the first and second groups,
the moving ring (107) is sleeved outside the sliding column (105), a fixed ball (107a) is arranged outside the moving ring (107), and a sliding block (107b) is arranged on the inner side of the fixed ball (107a) and passes through the first sliding groove (105a) to be communicated with the threaded sliding groove (101 c).
3. The live working platform facilitating installation of claim 2, wherein: the sliding column (105) is provided with a circular groove (105b) at the upper end, and a circular ring (101d) is arranged above the second connecting column (101b) and matched with the circular groove (105 b).
4. A hot-line work platform for facilitating installation according to claim 2 or 3, wherein: also included is a support assembly (200) comprising,
the supporting platform (201) is internally provided with a plurality of supporting plates (201a), and the inner side of the supporting platform is provided with a first connecting block (201 b);
the protective guard (202) is arranged on the surface of the supporting platform (201) through bolts;
a support rod (203) with one end hinged with the first connecting block (201 b); and the number of the first and second groups,
and one end of the second connecting block (204) is concave and provided with a first through hole (204a), and the other end of the second connecting block is arc-shaped and provided with a second through hole (204 b).
5. The live working platform of claim 4, wherein: one end of the supporting rod (203) is provided with a round long hole (203a), and the outside of the position of the supporting rod (203) where the round long hole (203a) is located is provided with a second sliding chute (203 b).
6. The live working platform of claim 5, wherein: the supporting rod (203) comprises a movable rod (203c) arranged inside the supporting rod, one end, penetrating out of the supporting rod (203), of the movable rod (203c) is provided with a connecting ball (203c-1) which is arranged outside the fixed ball (107a), and the side face of the connecting ball (203c-1) is provided with a third sliding groove (203 c-11).
7. Live working platform facilitating installation according to claim 5 or 6, characterized in that: one end of the supporting platform (201) is provided with a groove (201c), a notch (201d) is formed below the groove (201c), and a fixing column (201d) is arranged inside the notch (201d) and penetrates through the first through hole (204a) to be fixed with the inner side of the notch (201 d).
8. The live working platform of claim 7, wherein: also included is a securing assembly (300) comprising,
the outer side of the first hoop (301) is provided with a first fixing block (301a) and a second fixing block (301b), the first fixing block (301a) and the second connecting block (204) are fixed at the second through hole (204b) through bolts, and the second fixing block (301b) is in threaded connection with the upper portion of the sliding column (105); and the number of the first and second groups,
and a third fixing block (302a) is arranged on the outer side of the second anchor ear (302), and a third through hole (302a-1) is formed in the surface of the third fixing block (302 a).
9. The live working platform of claim 8, wherein: a fourth fixing block (107c) is arranged on the outer side of the moving ring (107), a fourth through hole (107c-1) is formed in the surface of the fourth fixing block, and the fourth fixing block and the third fixing block (302a) are fixed at the third through hole (302a-1) through a bolt.
10. The live working platform convenient to mount of claim 8 or 9, wherein: and a rotating plate (204c) is arranged on the surface of the second connecting block (204) and is matched with the groove (201 c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111267717.9A CN113889907A (en) | 2021-10-29 | 2021-10-29 | Live working platform convenient to installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111267717.9A CN113889907A (en) | 2021-10-29 | 2021-10-29 | Live working platform convenient to installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113889907A true CN113889907A (en) | 2022-01-04 |
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ID=79014298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111267717.9A Withdrawn CN113889907A (en) | 2021-10-29 | 2021-10-29 | Live working platform convenient to installation |
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| Country | Link |
|---|---|
| CN (1) | CN113889907A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114596759A (en) * | 2022-03-30 | 2022-06-07 | 谢美丽 | Financial specialty is with economic curve change analysis show board of convenient regulation |
-
2021
- 2021-10-29 CN CN202111267717.9A patent/CN113889907A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114596759A (en) * | 2022-03-30 | 2022-06-07 | 谢美丽 | Financial specialty is with economic curve change analysis show board of convenient regulation |
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Application publication date: 20220104 |
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