CN108466973B - Manual lifting platform - Google Patents
Manual lifting platform Download PDFInfo
- Publication number
- CN108466973B CN108466973B CN201810389468.2A CN201810389468A CN108466973B CN 108466973 B CN108466973 B CN 108466973B CN 201810389468 A CN201810389468 A CN 201810389468A CN 108466973 B CN108466973 B CN 108466973B
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- Prior art keywords
- lock
- lifting platform
- sliding
- lifting
- sliding pin
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- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000005452 bending Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Abstract
The invention relates to lifting equipment, in particular to a manual lifting platform. The lifting device comprises a support, wherein a lifting table is arranged on the support, the lifting table is matched with the support in an up-down sliding mode, and the lifting table is connected with a movable supporting mechanism. The lower part of a group of opposite side walls of the lifting platform is provided with lock holes, and the corresponding brackets at the outer sides of the lock holes are provided with locking mechanisms. The locking mechanism comprises an upper lock and a lower lock. The upper lock and the lower lock comprise connecting blocks, a supporting sleeve is arranged on the connecting blocks, a lock tongue is arranged in the supporting sleeve, and a horizontal spring is arranged between one end of the lock tongue and the connecting blocks. The lifting platform is characterized in that pushing bosses are arranged on the outer side walls of the lifting platforms corresponding to the upper edges of the lock holes. The upper surface of spring bolt has set gradually two tooth's socket, and there is vertical hole at the support cover top between two tooth's socket, has the sliding pin in the vertical hole, and the sliding pin lower extreme has spacing tooth, and the top of sliding pin has horizontal baffle, has vertical spring between horizontal baffle and the upper end of sliding pin. The lifting platform can be automatically kept in an unlocking state, and is convenient to operate.
Description
Technical Field
The invention relates to lifting equipment, in particular to a manual lifting platform for lifting and lowering materials.
Background
At present, a traditional manual lifting platform comprises a support, a lifting table is arranged on the support, the lifting table is matched with the support in an up-down sliding mode, and the lifting table is connected with a movable supporting mechanism. The lower part of a group of opposite side walls of the lifting platform is provided with lock holes, and the corresponding brackets at the outer sides of the lock holes are provided with locking mechanisms. The locking mechanism comprises an upper lock and a lower lock which are arranged side by side up and down. The upper lock and the lower lock comprise connecting blocks, a supporting sleeve is horizontally arranged on the connecting blocks, the axis of the supporting sleeve and the horizontal center line of the lock hole are in the same vertical plane, a lock tongue is arranged in the supporting sleeve, the lock tongue is matched with the supporting sleeve in a sliding mode, and a horizontal spring is arranged between one end of the lock tongue far away from the lifting platform and the connecting blocks. One side of the lock tongue is provided with a rack, the rack is meshed with a gear, a central rotating shaft is arranged between the gear of the upper lock and the gear of the lower lock, and the upper end of the central rotating shaft is provided with an unlocking handle. The lifting platform is locked by utilizing the action of the horizontal spring, so that the lock tongue is positioned in the lock hole. When the lifting work is performed, a worker firstly rotates the central rotating shaft through the unlocking handle, and drives the lock tongue to move to one side far away from the lifting table through the gear and the rack, so that the lock tongue leaves the lock hole. Then, the worker manually lifts and lowers the lift table. The lifting platform cannot automatically maintain the unlocking state due to the action of the horizontal spring, and when in operation, a worker needs to operate the unlocking handle and the lifting platform at the same time, so that the operation is inconvenient.
Disclosure of Invention
The invention aims to solve the technical problem of providing a manual lifting platform which can be automatically kept in an unlocking state and is convenient to operate.
In order to solve the problems, the following technical scheme is provided:
the manual lifting platform comprises a support, wherein a lifting table is arranged on the support, the lifting table is matched with the support in an up-down sliding mode, and the lifting table is connected with a movable supporting mechanism. The lower part of a group of opposite side walls of the lifting platform is provided with lock holes, and the corresponding brackets at the outer sides of the lock holes are provided with locking mechanisms. The locking mechanism comprises an upper lock and a lower lock which are arranged side by side up and down. The upper lock and the lower lock comprise connecting blocks, a supporting sleeve is horizontally arranged on the connecting blocks, the axis of the supporting sleeve and the horizontal center line of the lock hole are in the same vertical plane, a lock tongue is arranged in the supporting sleeve, the lock tongue is matched with the supporting sleeve in a sliding mode, and a horizontal spring is arranged between one end of the lock tongue far away from the lifting platform and the connecting blocks. The lifting platform is characterized in that pushing bosses are arranged on the outer side walls of the lifting platforms corresponding to the upper edges of the lock holes, the upper parts of the pushing bosses are planes, the lower parts of the pushing bosses are inclined planes, and the inclined planes are directly transited to the inner sides of the lock holes. The end face of one end of the spring bolt close to the lifting table and the upper surface of the spring bolt are in arc transition, two tooth grooves are sequentially formed in the upper surface of the spring bolt from one end of the spring to the other end of the spring, the depth of each tooth groove gradually becomes shallow from one side corresponding to the spring to the other side, a vertical hole communicated with an inner cavity of the supporting sleeve is formed in the top of the supporting sleeve between the two tooth grooves, a sliding pin is arranged in the vertical hole, limit teeth matched with the tooth grooves are arranged at the lower end of the sliding pin, a horizontal baffle is arranged above the sliding pin and connected with the top of the supporting sleeve through a vertical connecting plate, and a vertical spring is arranged between the horizontal baffle and the upper end of the sliding pin.
The vertical connecting rod is arranged between the sliding pin of the upper lock and the sliding pin of the lower lock, the reset rod is arranged on one side of the sliding pin of the upper lock corresponding to the lifting platform, and the tooth groove depth of the lock tongue in the upper lock is larger than that of the lock tongue in the lower lock.
A limit step is arranged between the tooth socket adjacent to the horizontal spring and one end of the lock tongue adjacent to the horizontal spring.
The connecting block is L-shaped, the supporting sleeves are all positioned on the section of connecting block corresponding to the L-shaped transverse part, and the horizontal spring is positioned between the lock tongue and the section of connecting block corresponding to the L-shaped vertical part.
The support comprises a bottom plate and an upper support plate, wherein the bottom plate and the upper support plate are arranged up and down side by side, four guide posts are arranged between the bottom plate and the upper support plate, the four guide posts are respectively positioned on four vertical edges of a cuboid, the lifting platform comprises a cuboid sliding platform, a handle is arranged at the top of the sliding platform, the sliding platform is positioned between the four guide posts, two long edges of the lower surface of the sliding platform are respectively provided with a long connecting plate extending outwards horizontally, the long connecting plates are respectively provided with two guide holes, linear bearings are respectively arranged in the guide holes, the four guide posts are positioned in the linear bearings of the long connecting plates in a one-to-one correspondence manner, and an abdicating hole is formed in the upper support plate above the sliding platform. The sliding table is characterized in that two short sides of the lower surface of the sliding table are respectively provided with a short connecting plate which horizontally extends outwards, the outer sides of the short connecting plates are respectively provided with a bending plate which is bent downwards by 90 degrees, and the locking hole and the pushing boss are respectively positioned on the bending plate.
The movable supporting mechanism comprises a fixed pulley, a rope and a balancing weight, wherein the fixed pulley is fixed on the lower plate surface of the upper supporting plate, one end of the rope is connected with the sliding table, and the other end of the rope bypasses the fixed pulley from top to bottom and then is connected with the balancing weight.
By adopting the scheme, the method has the following advantages:
as the pushing boss is arranged on the outer side wall of the lifting platform above the lock hole of the manual lifting platform, two tooth grooves are arranged on the upper surface of the lock tongue, a vertical hole communicated with the inner cavity of the supporting sleeve is arranged at the top of the supporting sleeve between the two tooth grooves, a sliding pin is arranged in the vertical hole, a limit tooth matched with the tooth groove is arranged at the lower end of the sliding pin, a horizontal baffle is arranged above the sliding pin and is connected with the top of the supporting sleeve through a vertical connecting plate, and a vertical spring is arranged between the horizontal baffle and the upper end of the sliding pin. When in locking, under the action of the horizontal spring, the lock tongue is positioned in the corresponding lock hole, and the sliding pin is positioned in the tooth slot far away from the lifting table. When the lifting work is performed, a worker firstly presses down the lifting platform to drive the inclined plane for pushing the bulge to push the lock tongue to move to one side far away from the lifting platform, and in the moving process, the inclined groove bottom of the tooth groove far away from the lifting platform pushes the sliding pin to move upwards to leave the tooth groove. Then, the lifting platform is continuously pressed down, the inclined surface pushing the bulge continuously pushes the lock tongue to move to one side far away from the lifting platform until the sliding pin enters into the tooth slot close to the lifting platform under the action of the vertical spring, so that unlocking is completed, and at the moment, the locking mechanism is always unlocked under the action of the tooth slot close to the lifting platform. And finally, operating the lifting platform in an unlocking state. The lifting platform can be automatically kept in an unlocking state, and is convenient to operate.
Drawings
FIG. 1 is a schematic view of a manual lifting platform (lower locking state) according to the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1;
FIG. 3 is a schematic diagram of the structure of a lock tongue of an upper lock in the manual lifting platform of the invention;
fig. 4 is a schematic diagram of a latch structure of a lower lock in the manual lifting platform of the invention;
fig. 5 is a schematic structural view of the manual lifting platform in a lower unlocking state;
FIG. 6 is a schematic structural view of the manual lifting platform in the upper locking state;
fig. 7 is an enlarged view of a portion B of fig. 6;
FIG. 8 is a schematic structural view of the manual lifting platform in the upper unlocked state;
fig. 9 is an enlarged view of a portion C of fig. 8;
fig. 10 is a schematic perspective view of a manual lifting platform according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, 2, 3, 4 and 8, the manual lifting platform of the invention comprises a bracket, wherein a lifting table is arranged on the bracket, the lifting table is matched with the bracket in an up-down sliding mode, and the lifting table is connected with a movable supporting mechanism. The lower part of a group of opposite side walls of the lifting platform is provided with a lock hole 20, and the corresponding brackets at the outer sides of the lock hole 20 are provided with locking mechanisms. The locking mechanism comprises an upper lock and a lower lock which are arranged side by side up and down; the upper lock and the lower lock comprise a connecting block 2, a supporting sleeve 21 horizontally arranged is arranged on the connecting block 2, the axis of the supporting sleeve 21 and the horizontal center line of a lock hole 20 are in the same vertical plane, a lock tongue 4 is arranged in the supporting sleeve 21, the lock tongue 4 is matched with the supporting sleeve 21 in a sliding mode, and a horizontal spring 3 is arranged between one end of the lock tongue 4 far away from the lifting table and the connecting block 2. The lifting platform outer side walls corresponding to the upper edges of the lock holes 20 are provided with pushing bosses 18, the upper parts of the pushing bosses 18 are planes, the lower parts of the pushing bosses are inclined planes, and the inclined planes are directly transited to the inner sides of the lock holes 20. The end face of one end of the lock tongue 4 close to the lifting table is in arc transition with the upper surface of the lock tongue 4, two tooth grooves 4-2 are sequentially formed in the upper surface of the lock tongue 4 from one end of the spring to the other end, the depth of each tooth groove 4-2 gradually becomes shallow from one side corresponding to the spring to the other side, a vertical hole communicated with an inner cavity of the supporting sleeve 21 is formed in the top of the supporting sleeve 21 between the two tooth grooves 4-2, a sliding pin 19 is arranged in the vertical hole, limit teeth 19-1 matched with the tooth grooves 4-2 are arranged at the lower end of the sliding pin 19, a horizontal baffle 6 is arranged above the sliding pin 19, the horizontal baffle 6 is connected with the top of the supporting sleeve 21 through a vertical connecting plate 5, and a vertical spring 23 is arranged between the horizontal baffle 6 and the upper end of the sliding pin 19.
A vertical connecting rod 7 is arranged between a sliding pin 19 of the upper lock and a sliding pin 19 of the lower lock, a reset rod 8 is arranged on one side of the sliding pin 19 of the upper lock corresponding to the lifting platform, and the depth of a tooth groove 4-2 of a lock tongue 4 in the upper lock is greater than that of the tooth groove 4-2 of the lock tongue 4 in the lower lock. The advantage of design like this is, when the unblock lower extreme lock, can not make the spring bolt 4 of upper lock get into locking state to avoided the elevating platform to take place the scratch accident with the spring bolt 4 of upper lock in-process that rises.
A limit step 4-1 is arranged between the tooth socket 4-2 adjacent to the horizontal spring 3 and one end of the lock tongue 4 adjacent to the horizontal spring 3.
The connecting block 2 is L-shaped, the supporting sleeves 21 are all positioned on the section of the connecting block 2 corresponding to the L-shaped transverse part, and the horizontal spring 3 is positioned between the lock tongue 4 and the section of the connecting block 2 corresponding to the L-shaped vertical part.
The support comprises a bottom plate 1 and an upper support plate 13, wherein the bottom plate 1 and the upper support plate 13 are arranged side by side up and down, four guide posts 22 are arranged vertically between the bottom plate 1 and the upper support plate 13, the four guide posts 22 are respectively positioned on four vertical edges of a cuboid, the lifting platform comprises a cuboid sliding platform 24, a handle 9 is arranged at the top of the sliding platform 24, the sliding platform 24 is positioned between the four guide posts 22, long connecting plates 17 extending outwards horizontally are arranged on two long edges of the lower surface of the sliding platform 24, two guide holes are formed in the long connecting plates 17, linear bearings 14 are arranged in the guide holes, the four guide posts 22 are positioned in the linear bearings 14 of the long connecting plates 17 in a one-to-one correspondence mode, the lifting platform is matched with the support in an up-down sliding mode, and a yielding hole is formed in the upper support plate 13 above the sliding platform 24. The two short sides of the lower surface of the sliding table 24 are respectively provided with a short connecting plate 15 which horizontally extends outwards, the outer sides of the short connecting plates 15 are respectively provided with a bending plate 16 which bends downwards by 90 degrees, and the lock hole 20 and the pushing boss 18 are respectively positioned on the bending plate 16.
The movable supporting mechanism comprises a fixed pulley 11, a rope 12 and a balancing weight 10, wherein the fixed pulley 11 is fixed on the lower plate surface of the upper supporting plate 13, one end of the rope 12 is connected with a sliding table 24, and the other end of the rope bypasses the fixed pulley 11 from top to bottom and is connected with the balancing weight 10.
When the lower lock is locked, the lock tongue 4 of the lower lock is positioned in the corresponding lock hole 20, the sliding pin 19 is positioned in the upper lock tooth groove 4-2 far away from the lifting table, at this time, the sliding pin 19 of the upper lock is positioned in the upper lock tooth groove 4-2 close to the lifting table, and the upper lock is in an unlocking state, as shown in fig. 1.
When unlocking the lower lock and performing ascending work, a worker firstly presses down the sliding table 24, the sliding table 24 drives the bending plate 16 and the pushing protrusion to descend, the inclined surface of the pushing protrusion pushes the lock tongue 4 of the lower lock to move to the side far away from the lifting table, and in the moving process, the inclined groove bottom of the tooth groove 4-2 of the lower lock far away from the lifting table pushes the sliding pin 19 to move upwards and leave the tooth groove 4-2. Then, the sliding table 24 is continuously pressed down, the inclined plane pushing the protrusion continuously pushes the lower lock tongue 4 to move to the side far away from the lifting table until the sliding pin 19 enters the tooth groove 4-2 close to the lifting table under the action of the vertical spring 23, and meanwhile, the lock tongue 4 completely leaves the locking notch to complete unlocking, and at the moment, the lower lock is always unlocked under the action of the tooth groove 4-2 close to the lifting table, as shown in fig. 5. Then, the slide table 24 is pulled upward by the pull 9 of the slide table 24, and the raising operation is performed. After that, when the sliding table 24 is lifted to the upper position, the plane of the pushing protrusion pushes the reset rod 8 to drive the sliding pin 19 of the upper lock and the sliding pin 19 of the lower lock to leave the tooth slot 4-2 close to the lifting table simultaneously through the vertical connecting rod 7, under the action of the horizontal spring 3, the upper lock and the lock tongue 4 of the lower lock enter the locking position, at this time, the lifting table is located at the upper position, and the lock tongue 4 of the upper lock is located in the lock hole 20 to complete the upper locking, as shown in fig. 6 and 7.
When unlocking the upper lock and descending, a worker firstly presses down the sliding table 24, the sliding table 24 drives the bending plate 16 and the pushing protrusion to descend, the inclined surface of the pushing protrusion pushes the lock tongue 4 of the upper lock to move to the side far away from the lifting table, and in the moving process, the inclined groove bottom of the upper lock tooth groove 4-2 far away from the lifting table pushes the sliding pin 19 to move upwards and leave the tooth groove 4-2. Then, the sliding table 24 is continuously pressed down, the inclined plane pushing the boss continuously pushes the upper lock tongue 4 to move to the side far away from the lifting table until the sliding pin 19 enters the tooth groove 4-2 close to the lifting table under the action of the vertical spring 23, meanwhile, the lock tongue 4 completely leaves the locking notch to complete unlocking, and at the moment, the upper lock is always kept unlocked under the action of the tooth groove 4-2 close to the lifting table, as shown in fig. 7 and 8. Then, the slide table 24 is continuously pressed down to perform the lowering operation. After that, when the slide table 24 is lowered to the lower position, the lock tongue 4 of the lower lock enters the lock hole 20 under the action of the horizontal spring 3, and the lowering operation is completed after the lower locking is completed.
Claims (6)
1. The manual lifting platform comprises a bracket, wherein a lifting table is arranged on the bracket, the lifting table is matched with the bracket in an up-down sliding mode, and the lifting table is connected with a movable supporting mechanism; the lower parts of a group of opposite side walls of the lifting platform are respectively provided with a lock hole (20), and brackets corresponding to the outer sides of the lock holes (20) are respectively provided with a locking mechanism; the locking mechanism comprises an upper lock and a lower lock which are arranged side by side up and down; the upper lock and the lower lock comprise a connecting block (2), a supporting sleeve (21) horizontally arranged is arranged on the connecting block (2), the axis of the supporting sleeve (21) and the horizontal central line of a lock hole (20) are in the same vertical plane, a lock tongue (4) is arranged in the supporting sleeve (21), the lock tongue (4) is in sliding fit with the supporting sleeve (21), and a horizontal spring (3) is arranged between one end of the lock tongue (4) far away from the lifting table and the connecting block (2); the lifting platform is characterized in that pushing bosses (18) are arranged on the outer side walls of the lifting platform corresponding to the upper edge of the lock hole (20), the upper parts of the pushing bosses (18) are planes, the lower parts of the pushing bosses are inclined planes, and the inclined planes are directly transited to the inner side of the lock hole (20); the end face of one end of a lock tongue (4) close to a lifting table and the upper surface of the lock tongue (4) are in arc transition, two tooth grooves (4-2) are sequentially formed in the upper surface of the lock tongue (4) from one end of a spring to the other end, the depth of each tooth groove (4-2) gradually becomes shallow from one side corresponding to the spring to the other side, a vertical hole communicated with an inner cavity of the supporting sleeve (21) is formed in the top of the supporting sleeve (21) between the two tooth grooves (4-2), a sliding pin (19) is arranged in the vertical hole, limit teeth (19-1) matched with the tooth grooves (4-2) are arranged at the lower end of the sliding pin (19), a horizontal baffle (6) is arranged above the sliding pin (19), the horizontal baffle (6) is connected with the top of the supporting sleeve (21) through a vertical connecting plate (5), and a vertical spring (23) is arranged between the horizontal baffle (6) and the upper end of the sliding pin (19).
2. The manual lifting platform as claimed in claim 1, wherein a vertical connecting rod (7) is arranged between the sliding pin (19) of the upper lock and the sliding pin (19) of the lower lock, a reset rod (8) is arranged on one side of the sliding pin (19) of the upper lock corresponding to the lifting platform, and the depth of a tooth groove (4-2) of the lock tongue (4) in the upper lock is greater than the depth of the tooth groove (4-2) of the lock tongue (4) in the lower lock.
3. A manual lifting platform as claimed in claim 1, characterized in that a limit step (4-1) is provided between the tooth slot (4-2) adjacent to the horizontal spring (3) and one end of the tongue (4) adjacent to the horizontal spring (3).
4. The manual lifting platform according to claim 1, wherein the connecting blocks (2) are L-shaped, the supporting sleeves (21) are all positioned on the section of the connecting blocks (2) corresponding to the L-shaped transverse parts, and the horizontal springs (3) are positioned between the lock bolts (4) and the section of the connecting blocks (2) corresponding to the L-shaped vertical parts.
5. The manual lifting platform as claimed in any one of claims 1 to 4, wherein the support comprises a bottom plate (1) and an upper support plate (13), the bottom plate (1) and the upper support plate (13) are arranged side by side up and down, four guide posts (22) are arranged vertically between the bottom plate (1) and the upper support plate (13), the four guide posts (22) are respectively positioned on four vertical edges of a cuboid, the lifting platform comprises a cuboid sliding platform (24), a handle (9) is arranged at the top of the sliding platform (24), the sliding platform (24) is positioned between the four guide posts (22), long connecting plates (17) horizontally extending outwards are arranged on two long edges of the lower surface of the sliding platform (24), two guide holes are formed in the long connecting plates (17), linear bearings (14) are arranged in the guide holes, the four guide posts (22) are positioned in the linear bearings (14) of the long connecting plates (17) in a one-to-one correspondence mode, so that the lifting platform is matched with the support in an up-to-down sliding mode, and the upper support plate (13) above the sliding platform (24) is provided with holes; the two short sides of the lower surface of the sliding table (24) are respectively provided with a short connecting plate (15) which horizontally extends outwards, the outer sides of the short connecting plates (15) are respectively provided with a bending plate (16) which bends downwards by 90 degrees, and the lock hole (20) and the pushing boss (18) are respectively positioned on the bending plate (16).
6. The manual lifting platform as claimed in claim 5, wherein the movable supporting mechanism comprises a fixed pulley (11), a rope (12) and a balancing weight (10), the fixed pulley (11) is fixed on the lower plate surface of the upper supporting plate (13), one end of the rope (12) is connected with the sliding table (24), and the other end of the rope bypasses the fixed pulley (11) from top to bottom and is connected with the balancing weight (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810389468.2A CN108466973B (en) | 2018-04-27 | 2018-04-27 | Manual lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810389468.2A CN108466973B (en) | 2018-04-27 | 2018-04-27 | Manual lifting platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108466973A CN108466973A (en) | 2018-08-31 |
| CN108466973B true CN108466973B (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810389468.2A Active CN108466973B (en) | 2018-04-27 | 2018-04-27 | Manual lifting platform |
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| Country | Link |
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| CN (1) | CN108466973B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155868A (en) * | 2019-06-12 | 2019-08-23 | 深圳双层科技有限责任公司 | A kind of clump weight is provided with the lifting device of lock body |
| CN112373671B (en) * | 2020-12-12 | 2022-07-22 | 江西洪都航空工业集团有限责任公司 | Semi-active cabin door up lock |
| CN112999602B (en) * | 2021-04-07 | 2022-03-25 | 谢洪胜 | Leg training device for track and field sports |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2861116Y (en) * | 2005-12-15 | 2007-01-24 | 兰州理工大学 | Locking guide apparatus for lifting platform |
| JP2010228894A (en) * | 2009-03-28 | 2010-10-14 | Uchida Yoko Co Ltd | Lifting device |
| CN106144946A (en) * | 2016-08-25 | 2016-11-23 | 西安睿诺新能源有限公司 | A kind of mechanical balance counter weight type aircraft service ensures hoistable platform |
| CN208345687U (en) * | 2018-04-27 | 2019-01-08 | 无锡德林防务装备股份有限公司 | A kind of Manual lifting platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9738500B2 (en) * | 2014-04-30 | 2017-08-22 | Advance Lifts, Inc. | Lockable lift device and method |
-
2018
- 2018-04-27 CN CN201810389468.2A patent/CN108466973B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2861116Y (en) * | 2005-12-15 | 2007-01-24 | 兰州理工大学 | Locking guide apparatus for lifting platform |
| JP2010228894A (en) * | 2009-03-28 | 2010-10-14 | Uchida Yoko Co Ltd | Lifting device |
| CN106144946A (en) * | 2016-08-25 | 2016-11-23 | 西安睿诺新能源有限公司 | A kind of mechanical balance counter weight type aircraft service ensures hoistable platform |
| CN208345687U (en) * | 2018-04-27 | 2019-01-08 | 无锡德林防务装备股份有限公司 | A kind of Manual lifting platform |
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| CN108466973A (en) | 2018-08-31 |
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Effective date of registration: 20240126 Address after: No.203, Furong Zhongsi Road, Xishan District, Wuxi City, Jiangsu Province, 214000 Applicant after: WUXI HAIHE EQUIPMENT TECHNOLOGY Ltd. Country or region after: China Address before: No. 99, Furong Zhongsi Road, Yunlin street, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, 214000 Applicant before: WUXI DELIN DEFENSE EQUIPMENT Ltd. Country or region before: China |
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