CN114344755A - Lifting device based on combination of triangular supports and ratchet wheel - Google Patents
Lifting device based on combination of triangular supports and ratchet wheel Download PDFInfo
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- CN114344755A CN114344755A CN202111533295.5A CN202111533295A CN114344755A CN 114344755 A CN114344755 A CN 114344755A CN 202111533295 A CN202111533295 A CN 202111533295A CN 114344755 A CN114344755 A CN 114344755A
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- 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
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Abstract
The invention discloses a lifting device based on combination of a triangular support and a ratchet wheel, which comprises a bearing disc, a positioning telescopic rod and a framework suspension clamp, wherein the bearing disc is provided with a positioning telescopic rod; the center of the bottom of the bearing disc is fixedly provided with a lifting ring, the top of the bearing disc is axially trisected, a ratchet wheel is arranged at the trisection, and a positioning telescopic rod is arranged through the ratchet wheel; one end of the positioning telescopic rod can be rotatably connected with the bearing disc through a ratchet wheel, and the other end of the positioning telescopic rod is provided with a framework hanging clamp. The lifting equipment based on the combination of the triangular supports and the ratchet wheel can be used as a safety belt hanging point for high-altitude operation and can also be used as a tripod; when on-site complex terrain and high-altitude construction, this lifting device based on triangular supports and ratchet combination can be installed at arbitrary terrain, for hanging the safety belt and providing the support, bears the weight of the power that the human body droops and produces, avoids the eminence risk of falling, reaches the purpose of safe high-efficient operation.
Description
Technical Field
The invention relates to the field of hoisting equipment, in particular to hoisting equipment based on combination of a triangular support and a ratchet wheel.
Background
The existing operation on an equipment framework in a transformer station often faces a difficulty that a safety belt safety rope cannot be hung at a stable position higher than an operation interface during high-altitude operation, so that the requirements of relevant safety regulations are not met, and meanwhile, the hidden danger of the operation is caused. Aiming at the problem, the current main solution is to use an insulating rod erected on the ground, and the bottom of the insulating rod is fixed with the ground by adopting a rectangular plane, or the bottom of the insulating rod is fixed by adopting a fork type mode to manufacture a high-point suspension safety belt. This kind of mode has two big problems, and first the equipment eminence operation height that relates to at present is unequal at 2m to 5m, and insulating bar length is limited, can't satisfy the requirement, if adopt the stock, then the transport carries comparatively difficultly. Secondly, the current upright insulator spindle strong point is mainly in the rectangular plane or the clamping fork structure of insulator spindle bottom, if the risk that the eminence falls takes place really, this kind of structure is difficult to bear the weight of the power that the human body droops and produces, has the potential safety hazard.
Disclosure of Invention
In order to solve the problems, the invention provides hoisting equipment based on combination of a triangular support and a ratchet wheel, which is based on high stability of the triangular support, replaces a universal joint of a traditional tripod by a three-page type ratchet wheel combination, is not limited by terrain, has high bearing capacity, can effectively improve the field working efficiency, reduces the safety risk, and meets the field operation work of a common high-altitude and complex terrain power grid.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a lifting device based on combination of a triangular support and a ratchet wheel comprises a bearing plate, a positioning telescopic rod and a framework suspension clamp; the center of the bottom of the bearing disc is fixedly provided with a lifting ring, the top of the bearing disc is axially trisected, a ratchet wheel is arranged at the trisection, and a positioning telescopic rod is arranged through the ratchet wheel; one end of the positioning telescopic rod can be rotatably connected with the bearing disc through a ratchet wheel, and the other end of the positioning telescopic rod is provided with a framework hanging clamp.
Further, the positioning telescopic rod comprises an inner epoxy resin rod, an outer epoxy resin rod and a locking assembly; the inner epoxy resin rod and the outer epoxy resin rod are both hollow rod bodies; one end of the inner epoxy resin rod can be rotatably connected with the heavy plate through a ratchet wheel, and the other end of the inner epoxy resin rod is inserted into the outer epoxy resin rod; one end of the outer epoxy resin rod is sleeved outside the inner epoxy resin rod, and the other end of the outer epoxy resin rod is provided with a framework hanging clamp; the locking assembly is arranged at the splicing position of the inner epoxy resin rod and the outer epoxy resin rod, and the length of the inner epoxy resin rod inserted into the outer epoxy resin rod can be positioned through the locking assembly.
Further, the locking assembly comprises a fixing sleeve and a locking bolt; the fixed sleeve is fixedly sleeved on the outer epoxy resin rod and is positioned at the splicing part of the inner epoxy resin rod and the outer epoxy resin rod, and external threads are arranged on the fixed sleeve; the suit that the locking bolt can be gliding is on interior epoxy pole, its and fixed sleeve threaded connection, and can make the body of rod outer wall that fixed sleeve compressed tightly interior epoxy pole.
Further, the other end of the outer epoxy resin rod is provided with a framework hanging clamp through a connecting component; the connecting assembly comprises an arc inserting plate and a rotating connecting rod; the arc inserting plate is fixedly connected with the other end of the outer epoxy resin rod and is vertical to the end face of the other end of the arc inserting plate; one end of the rotating connecting rod is provided with a slot, an articulated shaft is arranged in the slot, one end of the rotating connecting rod is rotatably connected with the arc flashboard through the slot and the articulated shaft, and the other end of the rotating connecting rod is fixedly connected with the framework suspension clamp.
Further, the framework suspension clamp comprises a convex frame, a left clamping rod and a right clamping rod; one side of the top end of the convex-shaped frame is fixedly connected with a vertically arranged right clamping rod, and the other side of the top end of the convex-shaped frame is fixedly connected with an obliquely arranged left clamping rod; the convex frame is fixedly connected with the rotating connecting rod through the right clamping rod, and the bottom of the convex frame is also provided with an opening; the framework suspension clamp can be sleeved on the rectangular or irregular steel of the framework through the convex-shaped framework, the bottom opening of the framework suspension clamp can be sleeved on the angle steel of the framework, and the framework suspension clamp can be clamped on the cylindrical steel of the framework through the left clamping rod and the right clamping rod.
Further, the ratchet wheel comprises a gear, an installation shaft, a rotating connection seat, a telescopic rod, an oblique latch and an inner rod installation seat; the bottom of the bearing disc is provided with a ratchet wheel mounting seat matched with a ratchet wheel; the gear and the rotary connecting seat are both arranged in the ratchet wheel mounting seat through a mounting shaft; one end of the rotary connecting seat, which is far away from the gear, is provided with a mounting hole; the oblique latch is installed in an installation hole of the rotating connecting seat through a telescopic rod, one end of the telescopic rod penetrates through the rotating connecting seat and is fixedly connected with the inner rod installation seat, and a compression spring is sleeved at one end, located in the installation hole, of the telescopic rod; the inner rod mounting seat is fixedly mounted at the end head of one end of the inner epoxy resin rod in an embedded manner; the oblique latch can be inserted between teeth of the gear through the telescopic rod.
Further, still be equipped with the guide bar on the interior pole mount pad, still be equipped with the guide way of cooperation guide bar on with the rotation connecting seat.
Further, this lifting device based on triangle-shaped support and ratchet combination can regard as the safety belt hanging point of high altitude construction to use, also can regard as the tripod to use.
The invention has the beneficial effects that:
this lifting device based on triangular supports and ratchet combination replaces the universal joint of traditional tripod through three page formula ratchet combinations based on the high stability of triangular supports, does not receive the topography restriction, and high bearing capacity can effectively improve on-the-spot work efficiency, reduces safe risk, satisfies the electric wire netting field operation work of common high altitude and complicated topography.
The lifting equipment based on the combination of the triangular supports and the ratchet wheel can be used as a safety belt hanging point for high-altitude operation and can also be used as a tripod; when on-spot complicated topography and high altitude construction, solve conventional safety belt and hang the problem that the bracing piece can't use on uneven ground, can't provide safe effective support simultaneously. This lifting device based on triangular supports and ratchet combination can install at arbitrary topography, for hanging the safety belt and providing the support, bears the weight of the power that human tenesmus produced, avoids the eminence risk of falling, reaches the purpose of safe high-efficient operation.
Drawings
FIG. 1 is a schematic bottom view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic structural view of a frame suspension clamp of the present invention;
FIG. 4 is a schematic view of the ratchet of the present invention;
in the figures 1-4, 1-bearing plate, 2-positioning telescopic rod, 3-framework suspension clamp, 4-hoisting ring, 5-ratchet wheel, 6-inner epoxy rod, 7-outer epoxy rod, 8-locking component, 9-fixing sleeve, 10-locking bolt, 11-arc insertion plate, 12-rotating connecting rod, 13-convex frame, 14-left clamping rod, 15-right clamping rod, 16-gear, 17-mounting shaft, 18-rotating connecting seat, 19-telescopic rod, 20-oblique latch, 21-inner rod mounting seat, 22-ratchet wheel mounting seat and 23-guide rod.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, the invention is a lifting device based on combination of a triangular support and a ratchet wheel, which comprises a bearing plate 1, a positioning telescopic rod 2 and a framework suspension clamp 3;
specifically, a lifting ring 4 is fixedly installed at the center of the bottom of the bearing disc 1, the top of the bearing disc 1 is axially trisected, a ratchet wheel 5 is arranged at each 120-degree equi-division position, and a positioning telescopic rod 2 is installed through the ratchet wheel 5; one end of the positioning telescopic rod 2 can be rotatably connected with the bearing disc 1 through the ratchet wheel 5, and the other end of the positioning telescopic rod 2 is provided with a framework hanging clamp 3. This lifting device based on triangular supports and ratchet combination can regard as the safety belt hanging point of aerial work to use, also can regard as the tripod to use.
When the lifting device based on the combination of the triangular supports and the ratchet wheels is used for on-site complex terrain and high-altitude operation, the lifting device is hung on an equipment framework in a transformer substation through a framework hanging clamp 3, the height position of a bearing disc 1 is adjusted through a positioning telescopic rod 2, and a hanging ring 4 at the center of the bottom of a heavy disc provides support for hanging a safety belt; and then solve the problem that conventional safety belt hangs the bracing piece and can't use, can't provide safe effective support simultaneously on the ground of unevenness, for hanging the safety belt and providing the support, bear the weight of the strength that human tenesmus produced, avoid the eminence risk of falling, reach the purpose of safe high-efficient operation. When needing to use as the tripod, will this hoisting equipment based on triangular supports and ratchet combination wholly invert, through location telescopic link 2 contact ground, adjust simultaneously and fix a position telescopic link 2 and make bearing plate 1 level, through installing other equipment on bearing plate 1, can form stable support, reach the extensive purpose of use scene.
The embodiment also shows the specific structure of the positioning telescopic rod 2, the framework hanging clamp 3 and the ratchet wheel 5.
As shown in fig. 2, the positioning telescopic rod 2 comprises an inner epoxy resin rod 6, an outer epoxy resin rod 7 and a locking assembly 8;
specifically, the inner epoxy resin rod 6 and the outer epoxy resin rod 7 are hollow rod bodies, the thickness of each rod body is 8mm, the diameter of the inner epoxy resin rod 6 is 60mm, the length of each rod body is 1.2m, the diameter of the outer epoxy resin rod 7 is 70mm, and the length of each rod body is 1 m; one end of the inner epoxy resin rod 6 can be rotatably connected with the bearing plate 1 through a ratchet wheel 5, the rotating angle of which can be adjusted, and the other end of the inner epoxy resin rod 6 is spliced with the outer epoxy resin rod 7; one end of the outer epoxy resin rod 7 is sleeved outside the inner epoxy resin rod 6, and the other end of the outer epoxy resin rod 7 is provided with a framework hanging clamp 3; the locking assembly 8 is arranged at the splicing position of the inner epoxy resin rod 6 and the outer epoxy resin rod 7, and the length of the inner epoxy resin rod 6 inserted into the outer epoxy resin rod 7 can be positioned through the locking assembly 8.
Further, the locking assembly 8 comprises a fixing sleeve 9 and a locking bolt 10; the fixing sleeve 9 is fixedly sleeved on the outer epoxy resin rod 7 and is positioned at the splicing position of the inner epoxy resin rod 6 and the outer epoxy resin rod 7, and an external thread is arranged on the fixing sleeve 9; the suit that locking bolt 10 can slide is on interior epoxy pole 6, locking bolt 10 and 9 threaded connection of fixed sleeve, and can make fixed sleeve 9 compress tightly the body of rod outer wall of interior epoxy pole 6.
When the length of the positioning telescopic rod 2 needs to be adjusted, firstly, the locking bolt 10 is rotated reversely, so that the locking bolt 10 is separated from the threaded connection with the fixing sleeve 9, at the moment, the fixing sleeve 9 is separated from the contact with the outer wall of the rod body of the inner epoxy resin rod 6, and then the inner epoxy resin rod 6 can be pulled relative to the outer epoxy resin rod 7; when the length of location telescopic link 2 satisfied the user demand, then positive rotation locking bolt 10 makes locking bolt 10 and 9 threaded connection of fixed sleeve, and fixed sleeve 9 can compress tightly the body of rod outer wall location length of interior epoxy pole 6.
As shown in fig. 3, the other end of the outer epoxy resin rod 7 is provided with a frame hanging clamp 3 through a connecting component; the connecting assembly comprises an arc inserting plate 11 and a rotating connecting rod 12; the arc inserting plate 11 is fixedly connected with the other end of the outer epoxy resin rod 7 and is perpendicular to the end face of the other end of the arc inserting plate 11; one end of the rotating connecting rod 12 is provided with a slot, an articulated shaft is arranged in the slot, one end of the rotating connecting rod 12 is rotatably connected with the arc flashboard 11 through the slot and the articulated shaft, and the other end of the rotating connecting rod 12 is fixedly connected with the framework suspension clamp 3.
The framework suspension clamp 3 comprises a convex frame 13 and left and right clamping rods 14 and 15; one side of the top end of the convex-shaped frame 13 is fixedly connected with a right clamping rod 15 which is vertically arranged, and the other side of the top end of the convex-shaped frame is fixedly connected with a left clamping rod 14 which is obliquely arranged; the convex frame 13 is fixedly connected with the rotating connecting rod 12 through a right clamping rod 15, and the bottom of the convex frame 13 is also provided with an opening; the framework suspension clamp 3 can be sleeved on the rectangular or irregular steel of the framework through the convex-shaped framework 13, the framework suspension clamp 3 can be sleeved on the angle steel of the framework through the bottom opening of the convex-shaped framework 13, and the framework suspension clamp 3 can be clamped on the cylindrical steel of the framework through the left clamping rod and the right clamping rod 15.
When complex terrain and high-altitude operation are carried out on site, the lifting equipment based on combination of the triangular supports and the ratchet wheels is hung on an equipment framework in the transformer substation through a framework hanging clamp 3; specifically, the steel material of the framework can be sleeved on the rectangular or irregular steel material of the framework through the convex-shaped framework 13, or can be sleeved on the angle steel of the framework through the bottom opening of the convex-shaped framework 13, or can be clamped on the cylindrical steel material of the framework through the left clamping rod 15 and the right clamping rod 15. When the lifting device is used as a tripod, the lifting device based on the combination of the triangular support and the ratchet wheel is integrally inverted and is contacted with the ground through the arc inserting plate 11 at the other end of the outer epoxy resin rod 7.
As shown in fig. 4, the ratchet wheel 5 comprises a gear 16, a mounting shaft 17, a rotary connecting seat 18, a telescopic rod 19, a skewed tooth 20 and an inner rod mounting seat 21;
specifically, a ratchet wheel mounting seat 22 matched with the ratchet wheel 5 is arranged at the bottom of the bearing disc 1; the gear 16 and the rotary connecting seat 18 are both arranged in a ratchet wheel mounting seat 22 through a mounting shaft 17; one end of the rotary connecting seat 18, which is far away from the gear 16, is provided with a mounting hole; the inclined latch 20 is installed in an installation hole of the rotary connecting seat 18 through an expansion link 19, one end of the expansion link 19 penetrates through the rotary connecting seat 18 and is fixedly connected with an inner rod installation seat 21, and a compression spring is sleeved at one end, located in the installation hole, of the expansion link 19; the inner rod mounting seat 21 is fixedly mounted at the end head of one end of the inner epoxy resin rod 6 in an embedded manner; the oblique latch 20 can be inserted between the teeth of the gear 16 via the telescopic rod 19. In addition, the inner rod mounting seat 21 is further provided with a guide rod 23, and the rotating connecting seat 18 is further provided with a guide groove matched with the guide rod.
The ratchet wheel 5 is designed as follows: according to the national standard GB/T3840.3-2021 calculation of the bearing capacity of straight gears and helical gears, carburizing steel materials are selected as main materials of the gears 16 and the oblique latch 20, and the design parameters of the gears 16 can be obtained by considering the bearing capacity of 3000N as follows:
the module m of the gear 16 is 4.5mm, the tooth height h is 7.5mm, the tooth top thickness is 4.5mm, the addendum circle diameter da is 45mm, the root circle diameter df is 30mm, the tooth groove included angle theta is 60 degrees, the tooth groove fillet radius r is 1.5mm, the wheel thickness is 3mm, the working length of the oblique latch 20 is 28.26mm, the height of the oblique latch 20 is 1.1mm, the tip fillet radius of the oblique latch 20 is 2mm, and the bottom length of the oblique latch 20 is 1.5 mm.
And (3) analyzing and calculating the stress: the equation Mt = T × RB, where M is the rotation force acting on the gear 16, and considering that the angle of 60 ° is selected according to the force analysis, and is 2580N, T is the brake wheel radius, and the obtained Mt is 3225 kgcm. The parameter can be obtained according to national standard design standards, and the Mt of the ratchet wheel 5 with the parameter is 5000kgcm, so that the stress analysis requirement is met.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a lifting device based on triangular supports and ratchet combination which characterized in that: the lifting device based on combination of the triangular support and the ratchet wheel comprises a bearing plate, a positioning telescopic rod and a framework suspension clamp; the center of the bottom of the bearing disc is fixedly provided with a lifting ring, the top of the bearing disc is axially trisected, a ratchet wheel is arranged at the trisection, and a positioning telescopic rod is arranged through the ratchet wheel; one end of the positioning telescopic rod can be rotatably connected with the bearing disc through a ratchet wheel, and the other end of the positioning telescopic rod is provided with a framework hanging clamp.
2. The lifting device based on the combination of the triangular support and the ratchet wheel according to claim 1, wherein: the positioning telescopic rod comprises an inner epoxy resin rod, an outer epoxy resin rod and a locking assembly; the inner epoxy resin rod and the outer epoxy resin rod are both hollow rod bodies; one end of the inner epoxy resin rod can be rotatably connected with the heavy plate through a ratchet wheel, and the other end of the inner epoxy resin rod is inserted into the outer epoxy resin rod; one end of the outer epoxy resin rod is sleeved outside the inner epoxy resin rod, and the other end of the outer epoxy resin rod is provided with a framework hanging clamp; the locking assembly is arranged at the splicing position of the inner epoxy resin rod and the outer epoxy resin rod, and the length of the inner epoxy resin rod inserted into the outer epoxy resin rod can be positioned through the locking assembly.
3. The lifting device based on the combination of the triangular support and the ratchet wheel as claimed in claim 2, wherein: the locking assembly comprises a fixing sleeve and a locking bolt; the fixed sleeve is fixedly sleeved on the outer epoxy resin rod and is positioned at the splicing part of the inner epoxy resin rod and the outer epoxy resin rod, and external threads are arranged on the fixed sleeve; the suit that the locking bolt can be gliding is on interior epoxy pole, its and fixed sleeve threaded connection, and can make the body of rod outer wall that fixed sleeve compressed tightly interior epoxy pole.
4. The lifting device based on the combination of the triangular support and the ratchet wheel as claimed in claim 2, wherein: the other end of the outer epoxy resin rod is provided with a framework hanging clamp through a connecting component; the connecting assembly comprises an arc inserting plate and a rotating connecting rod; the arc inserting plate is fixedly connected with the other end of the outer epoxy resin rod and is vertical to the end face of the other end of the arc inserting plate; one end of the rotating connecting rod is provided with a slot, an articulated shaft is arranged in the slot, one end of the rotating connecting rod is rotatably connected with the arc flashboard through the slot and the articulated shaft, and the other end of the rotating connecting rod is fixedly connected with the framework suspension clamp.
5. The lifting device based on the combination of the triangular support and the ratchet wheel as claimed in claim 4, wherein: the framework suspension clamp comprises a convex frame, a left clamping rod and a right clamping rod; one side of the top end of the convex-shaped frame is fixedly connected with a vertically arranged right clamping rod, and the other side of the top end of the convex-shaped frame is fixedly connected with an obliquely arranged left clamping rod; the convex frame is fixedly connected with the rotating connecting rod through the right clamping rod, and the bottom of the convex frame is also provided with an opening; the framework suspension clamp can be sleeved on the rectangular or irregular steel of the framework through the convex-shaped framework, the bottom opening of the framework suspension clamp can be sleeved on the angle steel of the framework, and the framework suspension clamp can be clamped on the cylindrical steel of the framework through the left clamping rod and the right clamping rod.
6. The lifting device based on the combination of the triangular support and the ratchet wheel as claimed in claim 2, wherein: the ratchet wheel comprises a gear, an installation shaft, a rotary connecting seat, a telescopic rod, an oblique latch and an inner rod installation seat; the bottom of the bearing disc is provided with a ratchet wheel mounting seat matched with a ratchet wheel; the gear and the rotary connecting seat are both arranged in the ratchet wheel mounting seat through a mounting shaft; one end of the rotary connecting seat, which is far away from the gear, is provided with a mounting hole; the oblique latch is installed in an installation hole of the rotating connecting seat through a telescopic rod, one end of the telescopic rod penetrates through the rotating connecting seat and is fixedly connected with the inner rod installation seat, and a compression spring is sleeved at one end, located in the installation hole, of the telescopic rod; the inner rod mounting seat is fixedly mounted at the end head of one end of the inner epoxy resin rod in an embedded manner; the oblique latch can be inserted between teeth of the gear through the telescopic rod.
7. The lifting device based on the combination of the triangular support and the ratchet wheel as claimed in claim 6, wherein: the inner rod mounting seat is further provided with a guide rod, and the rotating connecting seat is further provided with a guide groove matched with the guide rod.
8. The lifting device based on the combination of the triangular support and the ratchet wheel according to claim 1, wherein: this lifting device based on triangular supports and ratchet combination can regard as the safety belt hanging point of aerial work to use, also can regard as the tripod to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111533295.5A CN114344755B (en) | 2021-12-15 | 2021-12-15 | Lifting device based on combination of triangular supports and ratchet wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111533295.5A CN114344755B (en) | 2021-12-15 | 2021-12-15 | Lifting device based on combination of triangular supports and ratchet wheel |
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| Publication Number | Publication Date |
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| CN114344755A true CN114344755A (en) | 2022-04-15 |
| CN114344755B CN114344755B (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111533295.5A Active CN114344755B (en) | 2021-12-15 | 2021-12-15 | Lifting device based on combination of triangular supports and ratchet wheel |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050189457A1 (en) * | 2004-03-01 | 2005-09-01 | Chi-Chung Wang | Adjustable garment rod |
| CN204767097U (en) * | 2015-06-05 | 2015-11-18 | 国家电网公司 | High altitude construction safety belt linkage |
| CN207209831U (en) * | 2017-10-07 | 2018-04-10 | 国网江西省电力公司上饶供电分公司 | Construction earth anchor sectional shelf-unit formula pull-up |
| CN112850511A (en) * | 2021-01-28 | 2021-05-28 | 河南省智梦科技有限公司 | Hoisting method adopting portable crane |
| CN113213364A (en) * | 2021-06-07 | 2021-08-06 | 浙江瑞子发起重科技有限公司 | Ball head type lifting tripod |
-
2021
- 2021-12-15 CN CN202111533295.5A patent/CN114344755B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050189457A1 (en) * | 2004-03-01 | 2005-09-01 | Chi-Chung Wang | Adjustable garment rod |
| CN204767097U (en) * | 2015-06-05 | 2015-11-18 | 国家电网公司 | High altitude construction safety belt linkage |
| CN207209831U (en) * | 2017-10-07 | 2018-04-10 | 国网江西省电力公司上饶供电分公司 | Construction earth anchor sectional shelf-unit formula pull-up |
| CN112850511A (en) * | 2021-01-28 | 2021-05-28 | 河南省智梦科技有限公司 | Hoisting method adopting portable crane |
| CN113213364A (en) * | 2021-06-07 | 2021-08-06 | 浙江瑞子发起重科技有限公司 | Ball head type lifting tripod |
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| CN114344755B (en) | 2022-08-30 |
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