CN112027870A - Adjustable door counter weight that construction elevator used - Google Patents
Adjustable door counter weight that construction elevator used Download PDFInfo
- Publication number
- CN112027870A CN112027870A CN202011018961.7A CN202011018961A CN112027870A CN 112027870 A CN112027870 A CN 112027870A CN 202011018961 A CN202011018961 A CN 202011018961A CN 112027870 A CN112027870 A CN 112027870A
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- CN
- China
- Prior art keywords
- sliding block
- door
- counterweight
- door sliding
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010276 construction Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/30—Constructional features of doors or gates
Landscapes
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention provides an adjustable door counterweight for a construction elevator, which comprises a counterweight block, a door sliding block and a counterweight plate, wherein the door sliding block is detachably arranged on the counterweight block; the door sliding block is fixed through the fixing part after being connected with the counterweight block in a plug-in mode, the door sliding block is provided with a fixing device, and the counterweight block is fixed on the door sliding block through the fixing device after being connected with the counterweight block in a plug-in mode. The counterweight block and the door sliding block are connected in a plugging manner and then fixed through the hexagon socket head cap screw, the counterweight block and the door sliding block can be replaced, the counterweight plates and the door sliding block are also installed in a plugging manner, and then different counterweight plates can be replaced by adjusting the counterweight plates and the door sliding block through rotating the adjusting rod of the fixing device, and the counterweight plates and the door sliding block can be replaced according to different cage doors.
Description
Technical Field
The invention belongs to the technical field of elevators, and particularly relates to an adjustable door counterweight for a construction elevator.
Background
In the prior use, the counterweight block of the door is usually not changed, because the counterweight of the door is already configured when the door is delivered from a factory, but the type of the door is usually changed when the door is renovated at a later stage, so the counterweight is also modified, the adjustable counterweight of the invention can realize the counterweight required by any door, and the counterweight of the door is greatly reduced in noise.
Disclosure of Invention
In view of the above, the present invention is directed to an adjustable door counterweight for a construction elevator, so as to solve the problem that counterweights of different weights can be replaced in an adjustable manner according to actual requirements of equipment.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an adjustable door counterweight for a construction elevator comprises a counterweight block, a door sliding block detachably arranged on the counterweight block, and a counterweight plate adjustably arranged on the door sliding block;
the door sliding block is fixed through the fixing part after being connected with the counterweight block in a plug-in mode, the door sliding block is provided with a fixing device, and the counterweight block is fixed on the door sliding block through the fixing device after being connected with the counterweight block in a plug-in mode.
Furthermore, J-shaped bosses extend from the side walls of the two sides of the door sliding block respectively, an L-shaped sliding block mounting groove is formed between the J-shaped bosses and the side wall of the door sliding block, L-shaped mounting grooves corresponding to the J-shaped bosses are formed in the balancing weight, the J-shaped bosses are mounted in the L-shaped mounting grooves, the side wall of the door sliding block is attached to one side wall of the balancing weight, a first bolt hole is formed in the other side wall of the balancing weight, second bolt holes corresponding to the first bolt holes are formed in the J-shaped bosses of the door sliding block, and the fixing piece penetrates through the first bolt holes and is connected with the second.
Further, be equipped with T type groove on the door sliding block, be equipped with the T type slider corresponding with T type groove on the counter weight piece, T type slider plug is installed at T type inslot, be equipped with the mounting groove that is used for installing fixing device on the lateral wall in T type groove, be equipped with the slot that is used for fixing device to fix on the T type slider, fixing device pegs graft into in the slot.
Furthermore, a limiting groove is formed in the balancing weight, and a limiting block corresponding to the limiting groove is arranged on the outer wall of the T-shaped sliding block.
Further, fixing device is including adjusting the post, with the adjustable carriage release lever of being connected of regulation post, the inside hollow structure who is equipped with the U type of door sliding block, and hollow structure one end extends to the top of door sliding block, adjust post, carriage release lever and install at hollow structure.
Further, the carriage release lever is U type structure, the one end of carriage release lever is equipped with the screw hole, adjust pole one end and extend to a sliding block upper end, and the other end is equipped with the screw thread, adjusts the screw thread end of pole and the screw thread end threaded connection of carriage release lever, the other end of carriage release lever is equipped with the through-hole, is connected with the column groove with the through-hole, the erection column is installed to hollow structure's the other end, the erection column other end is equipped with annular limit, the through-hole diameter is corresponding with the erection column diameter, the diameter in column groove is corresponding with annular limit diameter, the erection column runs through the through-hole and installs at the.
Further, hollow structure extends to the door sliding block upper end and forms the cylindricality hole, installs the bearing in the cylindricality hole, it runs through the bearing and rotates and install in hollow structure to adjust the pole.
Furthermore, the movable rod is provided with sliding blocks near the lower end symmetrically, and two side walls of the hollow structure are respectively provided with sliding chutes for sliding the sliding blocks.
Further, mounting groove intercommunication hollow structure on the lateral wall of door sliding block, fixing device still includes the telescopic link, be equipped with the telescopic link mounting hole on the lateral wall of carriage release lever, telescopic link one end is articulated to be installed in the telescopic link mounting hole, and the other end of telescopic link extends to the mounting groove outside and pegs graft into in the slot.
Further, be equipped with the rectangular channel on the lateral wall of telescopic link, be equipped with the pivot on the lateral wall of mounting groove, pivot slidable mounting is in the rectangular channel, both sides wall all is equipped with the arc limit about the mounting groove.
Compared with the prior art, the adjustable door counterweight for the construction elevator has the following advantages:
(1) the counterweight block and the door sliding block are connected in a plugging manner and then fixed through the hexagon socket head cap screw, the counterweight block and the door sliding block can be replaced, the counterweight plates and the door sliding block are also installed in a plugging manner, and then different counterweight plates can be replaced by adjusting the counterweight plates and the door sliding block through rotating the adjusting rod of the fixing device, and the counterweight plates and the door sliding block can be replaced according to different cage doors.
(2) The fixing device realizes the extension and retraction of the telescopic rod through the matching of the adjusting rod and the moving rod, thereby realizing the fixation of the counterweight plate and being more convenient for the adjustment and replacement of the counterweight plate.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a structural view of an adjustable door counterweight for a construction elevator according to an embodiment of the present invention;
FIG. 2 is a schematic view of a weight block according to an embodiment of the present invention;
FIG. 3 is a view of a door slider block according to an embodiment of the present invention;
FIG. 4 is a structural view of a weight stack according to an embodiment of the present invention;
FIG. 5 is a first schematic view of a first embodiment of a door slider mounting fixture according to the present invention;
FIG. 6 is a second structural view of the door slider mounting and fixing device according to the embodiment of the present invention;
fig. 7 is a third structural view of the door sliding block mounting and fixing device according to the embodiment of the present invention.
Description of reference numerals:
1. a balancing weight; 2. a door slider; 3. a weight plate; 31. a T-shaped slider; 32. a slot; 33. a limiting block; 20. a J-shaped boss; 21. an adjustment column; 22. a T-shaped groove; 221. mounting grooves; 222. an L-shaped slide block mounting groove; 10. an L-shaped slider; 11. an L-shaped mounting groove; 12. a limiting groove; 13. hooking; 23. a hollow structure; 24. a travel bar; 25. an arc-shaped edge; 26. a bearing; 27. a telescopic rod; 271. a rectangular groove; 28. mounting a column; 281. an annular edge; 241. a telescopic rod mounting hole; 242. a cylindrical groove; 29. a slider; 231. a chute.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 7, an adjustable door counterweight for a construction elevator comprises a counterweight block 1, a door sliding block 2 detachably mounted on the counterweight block 1, and a counterweight plate 3 adjustably mounted on the door sliding block 2;
the door sliding block 2 is fixed through a fixing piece after being connected with the counterweight block 1 in a plug-in mode, a fixing device is arranged on the door sliding block 2, and the counterweight sheet 3 is fixed on the door sliding block 2 through the fixing device after being connected with the door sliding block 2 in a plug-in mode.
As shown in fig. 1 to 3, J-shaped bosses 20 extend from side walls of two sides of the door sliding block 2, an L-shaped block mounting groove 222 is formed between the J-shaped bosses 20 and the side walls of the door sliding block 2, an L-shaped mounting groove 11 corresponding to the J-shaped boss 20 is formed in the counterweight block 1, the J-shaped boss 20 is mounted in the L-shaped mounting groove 11, the side wall of the door sliding block 2 is attached to one side wall of the counterweight block 1, a first bolt hole is formed in the other side wall of the counterweight block 1, a second bolt hole corresponding to the first bolt hole is formed in the J-shaped boss 20 of the door sliding block 2, and the fixing member penetrates through the first bolt hole and is connected with;
the mounting is hexagon socket head counter bore bolt, fixes through hexagon socket head counter bore bolt after door sliding block 2 is connected with 1 plug of balancing weight, and door sliding block 2 is detachable construction with balancing weight 1, can follow to trade door sliding block 2 or balancing weight 1.
As shown in fig. 1, 2, and 4, a T-shaped groove 22 is formed in the door sliding block 2, a T-shaped sliding block 31 corresponding to the T-shaped groove 22 is formed in the weight stack 3, the T-shaped sliding block 31 is inserted into the T-shaped groove 22, an installation groove 221 for installing a fixing device is formed in a side wall of the T-shaped groove 22, a slot 32 for fixing the fixing device is formed in the T-shaped sliding block 31, and the fixing device is inserted into the slot 32;
the lateral wall laminating of counterweight 3 is on door sliding block 2 keeps away from the lateral wall of 1 one side of balancing weight, T type slider 31 is installed into T type groove 22, install fixing device on the lateral wall of T type groove 22, be equipped with slot 32 on the border that T type slider 31 extends, fixing device inserts into slot 32 in, fixing device is through the fixed and slack of adjusting 21 control fixing device of post, consequently counterweight 3 and door sliding block 2 can be dismantled, adjust to change and be connected, be convenient for change counterweight 3 of different weight, use with the cage door that adapts to the difference.
As shown in fig. 1, a limiting groove 12 is formed on the counterweight block 1, and a limiting block 33 corresponding to the limiting groove 12 is formed on the outer wall of the T-shaped sliding block 31;
because T type slider 31 installs in T type groove 22, the lateral wall laminating in the outer wall of balancing weight 1 of T type slider 31, consequently be equipped with spacing groove 12 on balancing weight 1, be equipped with stopper 33 on T type slider 31, further play the spacing of balancing weight 3 and door sliding block 2.
As shown in fig. 1 and 7, the fixing device includes an adjusting column 21 and a moving rod 24 adjustably connected to the adjusting column 21, a U-shaped hollow structure 23 is provided inside the door sliding block 2, one end of the hollow structure 23 extends to the top of the door sliding block 2, and the adjusting column 21 and the moving rod 24 are installed in the hollow structure 23.
As shown in fig. 7, the moving rod 24 is a U-shaped structure, one end of the moving rod 24 is provided with a threaded hole, one end of the adjusting rod extends to the upper end of the door sliding block 2, the other end of the adjusting rod is provided with threads, the threaded end of the adjusting rod is in threaded connection with the threaded end of the moving rod 24, the other end of the moving rod 24 is provided with a through hole, a column-shaped groove 242 is connected with the through hole, the mounting column 28 is installed at the other end of the hollow structure 23, the other end of the mounting column 28 is provided with an annular edge 281, the diameter of the through hole corresponds to the diameter of the mounting column 28, the diameter of the column-shaped groove 242 corresponds to the diameter of the.
As shown in fig. 1 and 7, the hollow structure 23 extends to the upper end of the door sliding block 2 to form a cylindrical hole, a bearing 26 is installed in the cylindrical hole, and the adjusting rod is rotatably installed in the hollow structure 23 through the bearing 26.
The moving rod 24 is symmetrically provided with sliding blocks 29 near the lower end, and the two side walls of the hollow structure 23 are respectively provided with sliding grooves 231 for the sliding of the sliding blocks 29.
Mounting groove 221 on the lateral wall of door sliding block 2 communicates hollow structure 23, fixing device still includes telescopic link 27, be equipped with telescopic link mounting hole 241 on the lateral wall of carriage release lever 24, telescopic link 27 one end is articulated to be installed in telescopic link mounting hole 241, and the other end of telescopic link 27 extends to the mounting groove 221 outside and pegs graft into in the slot 32.
Be equipped with rectangular groove 271 on the lateral wall of telescopic link 27, be equipped with the pivot on the lateral wall of mounting groove 221, pivot slidable mounting is in rectangular groove 271, both sides wall all is equipped with arc limit 25 about the mounting groove 221.
One end of the moving rod 24 is connected with the adjusting rod through a thread, the other end of the moving rod 24 is connected with the mounting column 28 in one end of the U-shaped structure, the moving rod 24 is matched with the mounting column 28 through the adjusting rod to install the moving rod 24 in the U-shaped hollow structure 23, the bottom of the moving rod 24 is also provided with a sliding block 29, the sliding block 29 slides in a sliding groove 231271 of the hollow structure 23, the adjusting rod is installed on a door sliding block 29 through a bearing 26, the adjusting rod is rotatably installed on a door sliding block 2 and rotates, the moving rod 24 moves upwards or downwards, the moving rod 24 is hinged with a telescopic rod 27, the telescopic rod 27 extends out of an installation groove 221, a rotating shaft is installed on the installation groove 221, a rectangular groove 271 on the telescopic rod 27 slides on the rotating shaft, the moving rod 24 moves downwards, the telescopic rod 27 is hinged with the moving rod 24, the, so that the extension rod 27 is disengaged from the slot 32 to facilitate the removal of the weight plate 3.
The concrete structure is as follows:
during the installation, in pegging graft the L type mounting groove 11221 of balancing weight 1 with door sliding block 2, fixing balancing weight 1 and door sliding block 2 through hexagon socket head cap screw, at installation balancing weight piece 3, make balancing weight piece 3 peg graft in the T type groove 22 of door sliding block 29, through the rotatory handle of the regulation pole at revolving door sliding block 2 top, realize reciprocating of carriage release lever 24 to realize that telescopic link 27 pegs graft in slot 32, fix balancing weight piece 3.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an adjustable door counter weight that construction elevator used which characterized in that: comprises a balancing weight (1), a door sliding block (2) which is detachably arranged on the balancing weight (1), and a balancing weight piece (3) which is adjustably arranged on the door sliding block (2);
the door sliding block (2) is fixed through a fixing piece after being connected with the counterweight block (1) in a plug-in mode, a fixing device is arranged on the door sliding block (2), and the counterweight block (3) is fixed on the door sliding block (2) through the fixing device after being connected with the door sliding block (2) in a plug-in mode.
2. The adjustable door counterweight for a construction elevator according to claim 1, wherein: the door sliding block is characterized in that J-shaped bosses (20) extend out of the side walls of two sides of the door sliding block (2) respectively, L-shaped sliding block mounting grooves (222) are formed between the J-shaped bosses (20) and the side walls of the door sliding block (2), L-shaped mounting grooves (11) corresponding to the J-shaped bosses (20) are formed in the balancing weight (1), the J-shaped bosses (20) are mounted in the L-shaped mounting grooves (11), the side walls of the door sliding block (2) are attached to one side wall of the balancing weight (1), first bolt holes are formed in the other side wall of the balancing weight (1), second bolt holes corresponding to the first bolt holes are formed in the J-shaped bosses (20) of the door sliding block (2), and the fixing piece penetrates through the first bolt holes and.
3. The adjustable door counterweight for a construction elevator according to claim 1, wherein: be equipped with T type groove (22) on door sliding block (2), be equipped with on counter weight piece (3) with T type groove (22) corresponding T type slider (31), T type slider (31) plug is installed in T type groove (22), be equipped with mounting groove (221) that are used for installing fixing device on the lateral wall in T type groove (22), be equipped with on T type slider (31) and be used for slot (32) that fixing device is fixed, fixing device inserts in slot (32).
4. The adjustable door counterweight for a construction elevator according to claim 3, wherein: the counter weight block (1) is provided with a limiting groove (12), and the outer wall of the T-shaped sliding block (31) is provided with a limiting block (33) corresponding to the limiting groove (12).
5. The adjustable door counterweight for a construction elevator according to claim 3, wherein: fixing device is including adjusting post (21), with regulating movable rod (24) of post (21) adjustable connection, the inside hollow structure (23) that is equipped with the U type of door sliding block (2), and hollow structure (23) one end extends to the top of door sliding block (2), it installs in hollow structure (23) to adjust post (21), movable rod (24).
6. The adjustable door counterweight for a construction elevator according to claim 5, wherein: the utility model discloses a door sliding block, including carriage release lever (24), regulating lever one end, installation post (28) are installed to the other end of hollow structure (23), the installation post (28) other end is equipped with annular limit (281), the through-hole diameter is corresponding with erection post (28) diameter, the diameter in cylindrical groove (242) is corresponding with annular limit (281), erection post (28) run through the through-hole and install in cylindrical groove (242), the one end of carriage release lever (24) is equipped with the screw hole, regulation lever one end extends to door sliding block (2) upper end, and the other end is equipped with the screw thread, adjusts the screw thread end of pole and the screw thread connection of carriage release lever (24), the other end of carriage release lever (24) is equipped with the through-hole, is.
7. The adjustable door counterweight for a construction elevator according to claim 5, wherein: hollow structure (23) extend to door sliding block (2) upper end and form the cylindricality hole, install bearing (26) in the cylindricality hole, it rotates and installs in hollow structure (23) to run through bearing (26) to adjust the pole.
8. The adjustable door counterweight for a construction elevator according to claim 5, wherein: the movable rod (24) is provided with sliding blocks (29) near the lower end symmetrically, and two side walls of the hollow structure (23) are respectively provided with a sliding groove (231) for the sliding of the sliding blocks (29).
9. The adjustable door counterweight for a construction elevator according to claim 5, wherein: mounting groove (221) on the lateral wall of door sliding block (2) communicate hollow structure (23), fixing device still includes telescopic link (27), be equipped with telescopic link mounting hole (241) on the lateral wall of carriage release lever (24), telescopic link (27) one end is articulated to be installed in telescopic link mounting hole (241), and the other end of telescopic link (27) extends to in mounting groove (221) outside is pegged graft into slot (32).
10. The adjustable door counterweight for a construction elevator of claim 9, wherein: be equipped with rectangular channel (271) on the lateral wall of telescopic link (27), be equipped with the pivot on the lateral wall of mounting groove (221), pivot slidable mounting is in rectangular channel (271), both sides wall all is equipped with arc limit (25) about mounting groove (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011018961.7A CN112027870B (en) | 2020-09-24 | 2020-09-24 | Adjustable door counterweight for construction elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011018961.7A CN112027870B (en) | 2020-09-24 | 2020-09-24 | Adjustable door counterweight for construction elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112027870A true CN112027870A (en) | 2020-12-04 |
| CN112027870B CN112027870B (en) | 2023-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011018961.7A Active CN112027870B (en) | 2020-09-24 | 2020-09-24 | Adjustable door counterweight for construction elevator |
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| Country | Link |
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| CN (1) | CN112027870B (en) |
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| DE4033956C1 (en) * | 1990-10-25 | 1992-04-09 | Michael 2000 Hamburg De Kranick | |
| RU2138033C1 (en) * | 1997-11-27 | 1999-09-20 | Хабаровский государственный технический университет | Assembled weight |
| US20110240415A1 (en) * | 2008-12-03 | 2011-10-06 | Loiselet Sarl | Modular Weighting Elements |
| CN204237413U (en) * | 2014-10-15 | 2015-04-01 | 西子奥的斯电梯有限公司 | A kind of adjustable weight-driven |
| CN107934804A (en) * | 2017-11-01 | 2018-04-20 | 芜湖市长江起重设备制造有限公司 | A kind of automobile crane counterweight attaching/detaching apparatus |
| CN207973374U (en) * | 2018-01-30 | 2018-10-16 | 天津市恒利电梯技术开发有限公司 | A kind of elevator draft fan of cleaning easy to disassemble |
| CN208071080U (en) * | 2018-03-30 | 2018-11-09 | 天津海北红科技有限公司 | A kind of combination elevator clump weight being easily installed |
| CN208234365U (en) * | 2018-04-24 | 2018-12-14 | 马亚晓 | A kind of counterweight of lifter for building construction cage door |
| CN208856764U (en) * | 2018-08-06 | 2019-05-14 | 南通东之杰电气有限公司 | Feeding gate counter weight device |
| CN210427256U (en) * | 2019-08-19 | 2020-04-28 | 东莞市书畅检测设备有限公司 | Pendulum bob of cantilever beam impact testing machine |
| CN212608960U (en) * | 2020-09-24 | 2021-02-26 | 天津京龙工程机械有限公司 | Adjustable door counter weight for construction elevator |
-
2020
- 2020-09-24 CN CN202011018961.7A patent/CN112027870B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4033956C1 (en) * | 1990-10-25 | 1992-04-09 | Michael 2000 Hamburg De Kranick | |
| RU2138033C1 (en) * | 1997-11-27 | 1999-09-20 | Хабаровский государственный технический университет | Assembled weight |
| US20110240415A1 (en) * | 2008-12-03 | 2011-10-06 | Loiselet Sarl | Modular Weighting Elements |
| CN204237413U (en) * | 2014-10-15 | 2015-04-01 | 西子奥的斯电梯有限公司 | A kind of adjustable weight-driven |
| CN107934804A (en) * | 2017-11-01 | 2018-04-20 | 芜湖市长江起重设备制造有限公司 | A kind of automobile crane counterweight attaching/detaching apparatus |
| CN207973374U (en) * | 2018-01-30 | 2018-10-16 | 天津市恒利电梯技术开发有限公司 | A kind of elevator draft fan of cleaning easy to disassemble |
| CN208071080U (en) * | 2018-03-30 | 2018-11-09 | 天津海北红科技有限公司 | A kind of combination elevator clump weight being easily installed |
| CN208234365U (en) * | 2018-04-24 | 2018-12-14 | 马亚晓 | A kind of counterweight of lifter for building construction cage door |
| CN208856764U (en) * | 2018-08-06 | 2019-05-14 | 南通东之杰电气有限公司 | Feeding gate counter weight device |
| CN210427256U (en) * | 2019-08-19 | 2020-04-28 | 东莞市书畅检测设备有限公司 | Pendulum bob of cantilever beam impact testing machine |
| CN212608960U (en) * | 2020-09-24 | 2021-02-26 | 天津京龙工程机械有限公司 | Adjustable door counter weight for construction elevator |
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| CN112027870B (en) | 2023-10-31 |
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