CN204369489U - The anti-mistake of hoisting rope puts device and hoisting crane - Google Patents
The anti-mistake of hoisting rope puts device and hoisting crane Download PDFInfo
- Publication number
- CN204369489U CN204369489U CN201420811139.XU CN201420811139U CN204369489U CN 204369489 U CN204369489 U CN 204369489U CN 201420811139 U CN201420811139 U CN 201420811139U CN 204369489 U CN204369489 U CN 204369489U
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- support
- mistake
- hoisting
- bearing plate
- stay bearing
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Abstract
The utility model discloses the anti-mistake of a kind of hoisting rope and put device and hoisting crane.Wherein, the anti-mistake of described hoisting rope is put device (1) and being comprised: be arranged on connection structure on winding support (21) for anti-for described hoisting rope mistake being put device (1), be pivotably connected to the support of described connection structure, roller (11) is on the bracket installed, for making described roller (11) be pressed in be wrapped in the elastic component (14) of the upper steel rope (23) of winding reel (22) and for producing when the drive of described support is moved to described steel rope (23) compressing the setting number of turns at described roller (11) and sending the sensing unit stopping the signal discharging steel rope (23).The anti-mistake of the hoisting rope that the utility model provides puts device can prevent excessive release of steel wire rope effectively, protection steel rope and hoisting speed reducer, improves the safety in operation process.
Description
Technical field
The utility model relates to engineering machinery field, particularly, relates to the anti-mistake of a kind of hoisting rope and puts device and comprise the hoisting crane that the anti-mistake of this hoisting rope puts device.
Background technology
Crawler crane can carry out the operations such as material lifting, transport, handling and installation, is also usually used in the operating modes such as the grab bucket in construction operation, strong rammer.In order to increase work efficiency and reduce energy ezpenditure, crawler crane is provided with free off the hook winch usually.But, in the process of operation, can not the rotation of brake drum in time after weight lands, easily make excessive release of steel wire rope, and then easily damage steel rope, hoisting speed reducer, even also can be accidents caused.
In order to prevent excessive release of steel wire rope, in prior art, usually determine the number of turns of steel rope on reel by the length of default steel rope and the height of lifting.But after weight lands, the reel of winch also can rotate under the effect of inertia, still can make excessive release of steel wire rope.
Therefore, there is the defect that excessive release of steel wire rope easily occurs in the process of the free off the hook winch work of crawler crane in prior art.
Utility model content
The purpose of this utility model is to provide the anti-mistake of a kind of hoisting rope and puts device, and the anti-mistake of this hoisting rope puts device can prevent excessive release of steel wire rope effectively, protection steel rope and hoisting speed reducer, improves the safety in operation process.
To achieve these goals, the utility model provides the anti-mistake of a kind of hoisting rope to put device, wherein, the anti-mistake of described hoisting rope is put device and is comprised: be arranged on connection structure on winding support for anti-for described hoisting rope mistake being put device, be pivotably connected to the support of described connection structure, roller is on the bracket installed, for make described roller compression in be wrapped in steel rope on winding reel elastic component and for producing when the drive of described support is moved to the described steel rope compressing the setting number of turns at described roller and sending the sensing unit of signal stopping discharging steel rope.
Preferably, the described setting number of turns is not less than 3.
Preferably, described elastic component is compressed between described support and connection structure, described sensing unit comprise be arranged on described support and the proximity switch in any one in described connection structure and be arranged in another one can described support be pivoted to make described roller compression set the described steel rope of the number of turns time optionally overlapping with described proximity switch or nonoverlappingly contact iron.
Preferably, described support comprises the first support for installing described roller and the second support for being connected described connection structure and described first support, described second support is removably connected to described first support, the connection location of described second support and described first support can adjust along the length direction of described first support, to adjust the length of described support.
Preferably, any one in described first support and described second support is provided with the first bar shape trench hole that the length direction along described first support extends, another one is provided with mounting hole, and described first support and the second support are by being connected with the first fastener of described mounting hole through described first bar shape trench hole.
Preferably, described connection structure comprises connecting panel, this connecting panel is provided with and stretches out in the same way and the first stay bearing plate parallel to each other and the second stay bearing plate perpendicular to described connecting panel, be provided with the axle that the length direction that is parallel to described connecting panel is fixing between described first stay bearing plate and the second stay bearing plate, described second support is connected to described axle pivotly.
Preferably, described first support is formed as U-shaped frame, the end of described second support be provided with the sleeve part that is sheathed on described axle with for installing described proximity switch or the described mounting structure contacting iron, described mounting structure is kink, described elastic component is sheathed on described axle, and one end is biased in described kink, the other end is biased in described connecting panel.
Preferably, be arranged on described proximity switch in described connection structure or described contact iron is connected in any one in described first stay bearing plate and the second stay bearing plate, and the connection location of described one in itself and described first stay bearing plate and the second stay bearing plate can adjust along the plate face of described first stay bearing plate or the second stay bearing plate.
Preferably, be connected with and described first stay bearing plate of described proximity switch or described contact iron or the second stay bearing plate be provided with the second bar shape trench hole and by being connected to described proximity switch or described contact iron through the second fastener of described second bar shape trench hole.
Preferably, described connection structure comprises adapter plate, and this adapter plate is provided with the web portion be connected with described connecting panel, and the connection location of described connecting panel and described web portion can adjust respectively along the length direction of described connecting panel and Width.
On the basis of technique scheme, the utility model also provides a kind of hoisting crane, this hoisting crane comprises winch, this winch comprises winding support and is wound with the winding reel of steel rope, described hoisting crane also comprises the control setup for controlling described winding reel, wherein, the anti-mistake of hoisting rope that described hoisting crane also comprises the utility model to be provided puts device, the anti-mistake of this hoisting rope is put device and is installed on the described winding support of described winch by described connection structure, and described sensing unit is electrically connected with described control setup.
Pass through technique scheme; the anti-mistake of the hoisting rope that the utility model provides puts device by arranging the roller and the sensing unit that are pressed in steel rope; roller compression can be released into be produced by sensing unit in time setting the steel rope of the number of turns and send and stop release steel rope signal by steel rope on winding reel; winding reel is stopped operating and discharges steel rope; thus effectively prevent excessive release of steel wire rope; protection steel rope and hoisting speed reducer, reduce the danger in operation process.
Other features and advantages of the utility model are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification sheets, is used from explanation the utility model, but does not form restriction of the present utility model with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is that the anti-mistake of hoisting rope of the embodiment provided according to the utility model puts the schematic diagram that device is installed on winch;
Fig. 2 is the block diagram that the anti-mistake of hoisting rope of the detailed description of the invention provided according to the utility model puts device;
Fig. 3 is the lateral plan that the anti-mistake of hoisting rope of the detailed description of the invention provided according to the utility model puts device.
Description of reference numerals
The anti-mistake of 1 hoisting rope puts device; 10 adapter plates; 101 web portion; 1011 Article 4 shape slotted eyes; 102 installation portions; 11 rollers; 121 first supports; 122 second supports; 1221 sleeve parts; 1222 kinks; 1223 first bar shape trench holes; 13 axles; 14 elastic components; 15 proximity switches; 16 contact iron; 17 connecting panels; 171 Article 3 shape slotted eyes; 181 first stay bearing plates; 1811 second bar shape trench holes; 182 second stay bearing plates; 191 first fasteners; 192 the 3rd fasteners; 21 winding supports; 22 winding reels; 23 steel ropes.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
The utility model provides the anti-mistake of a kind of hoisting rope to put device, wherein, the anti-mistake of hoisting rope is put device 1 and is comprised: be arranged on connection structure on winding support 21 for anti-for hoisting rope mistake being put device 1, be pivotably connected to the support of connection structure, rack-mount roller 11, for making roller 11 be pressed in be wrapped in the elastic component 14 of steel rope 23 on winding reel 22 and for producing when the drive of support is moved to the steel rope 23 compressing setting number of turns N at roller 11 and sending the sensing unit stopping the signal discharging steel rope 23.
Pass through technique scheme, the anti-mistake of hoisting rope provided at the utility model is put in device, when steel rope 23 free off the hook, winding reel 21 rotates with higher speed and discharges steel rope 23, meanwhile, the roller 11 be pressed on steel rope 23 moves and remains at the state compressing steel rope 23 under the effect of elastic component 14, along with the release of steel rope 23, the number of turns of steel rope 23 remaining on winding reel 21 reduces gradually, when being reduced to roller 11 and moving to the compression setting number of turns (such as the 3rd circle) steel rope 23, sensing unit produces and sends the signal stopping release steel rope 23, can know in the following description, this signal transmission is to the control setup of hoisting crane, this control setup controls winding reel and stops the rotation, simultaneously, winding reel 21 stops release steel rope 23, steel rope 23 is avoided excessively to discharge, protection steel rope and hoisting speed reducer, avoid occurring safety failure.
Detailed description of the invention of the present utility model is described in detail below in conjunction with Fig. 1 to Fig. 3.
In the detailed description of the invention that the utility model provides, can realize under the above-mentioned prerequisite avoiding steel rope 23 excessively to discharge, can arrange the setting number of turns above mentioned as required, setting number of turns N is not less than 3, wherein, and the number of turns N round numbers mentioned.In actual applications, setting number of turns N is generally 3, therefore, for convenience of description, hereinafter setting number of turns N is set to three circles.It should be noted that at this, the number of turns mentioned in the utility model refers to the number of total coils of multilayer steel rope on reel, is connected on reel starts to calculate with steel rope 23, is first lap, the second circle in turn ... n-th circle, wherein, n is natural number.
The anti-mistake of hoisting rope provided according to the utility model puts the detailed description of the invention of device, elastic component 14 is compressed between support and connection structure, along with the minimizing of steel rope on winding reel 23 number of plies, elastic component 14 recovers deformation gradually, and support pivotable under the elastic force effect of elastic component 14 remains pressed against on steel rope 23 to make roller 11.
In the detailed description of the invention that the utility model provides, sensing unit comprise the proximity switch 15 that is arranged in connection structure and be arranged on support can support be pivoted to make roller 11 compress the 3rd circle steel rope 23 time optionally overlapping with proximity switch 15 or nonoverlappingly contact iron 16, certainly, proximity switch 15 can exchange with the setting position contacting iron 16, namely proximity switch 15 is arranged on support, and contact iron is arranged in connection structure.By above-mentioned setting, can be under the state of enclosing steel rope 23 in roller 11 malcompression the 3rd proximity switch 15 with to contact iron 16 not overlapping, when roller compression the 3rd encloses steel rope 23, proximity switch 15 is with to contact iron 16 overlapping, now proximity switch 15 produces and sends the signal stopping release steel rope 23, also can be roller 11 malcompression the 3rd enclose steel rope 23 state under proximity switch 15 with contact iron 16 overlap, when roller compression the 3rd encloses steel rope 23, proximity switch 15 is not with to contact iron 16 overlapping, now proximity switch 15 produces and sends the signal stopping release steel rope 23, that is, as long as proximity switch 15 changes with the overlap condition contacted between iron 16, proximity switch 15 will produce and send the signal stopping release steel rope 23.In other embodiments of the present utility model, sensing unit can be set to other form, is not limited thereto.Such as, when needing steel rope 23 to be discharged into be not enough to the spool surface covering winding reel 22, can friction coefficient suffered by roller 11 change and produce and send the signal stopping release steel rope 23; Or can the change of the elastic force that elastic component 14 pairs of supports apply be sensed by sensing unit and produce and send the signal stopping release steel rope 23.
In the detailed description of the invention that the utility model provides, support can comprise the first support 121 for installing roller 11 and the second support 122 for being connected connection structure and the first support 121, second support 122 is removably connected to the first support 121, the connection location of the second support 122 and the first support 121 can adjust along the length direction of the first support 121, thus can adjust the length of whole support.
The adjustment of the length to whole support can be accomplished in several ways, such as, any one in first support 121 and the second support 122 is provided with the first bar shape trench hole 1223 that the length direction along the first support 121 extends, another one is provided with mounting hole, and the first support 121 and the second support 122 are by being connected with the first fastener 191 (such as bolt) of mounting hole through the first bar shape trench hole 1223.Particularly, can as shown in Figure 2, the first bar shape trench hole 1223 is arranged on the second support 122, and extends along the length direction of the second support 122.
In detailed description of the invention in figs. 2 and 3, connection structure can comprise connecting panel 17, this connecting panel 17 is provided with and stretches out in the same way and the first stay bearing plate 181 and the second stay bearing plate 182 parallel to each other perpendicular to connecting panel 17, axle 13, second support 122 being provided with the length direction that is parallel to connecting panel 17 between first stay bearing plate 181 and the second stay bearing plate 182 fixing is connected to axle 13 pivotly.
In this embodiment, the first support 121 can be formed as U-shaped frame, and roller 11U is connected to the U-shaped end of the first support 121.The end of the second support 122 can be provided with the sleeve part 1221 that is sheathed on axle 13 with for installing proximity switch 15 or contacting the mounting structure of iron 16, particularly, as shown in Figure 2, mounting structure is kink 1222, elastic component 14 (such as torsion spring) is sheathed on axle 13, and one end is biased in kink 1222, the other end is biased in connecting panel 17.Therefore, bending part 1222 has double action.
In detailed description of the invention shown in Fig. 1 to Fig. 3, proximity switch 15 is arranged in connection structure, contact iron 16 is connected on the bending part 1222 of the second support 122, and for the proximity switch 15 be arranged in connection structure, can be connected on the first stay bearing plate 181 and (also can be connected on the second stay bearing plate 182), and the connection location of itself and the first stay bearing plate 181 (or second stay bearing plate 182) can adjust along the plate face of the first stay bearing plate 181 (or second stay bearing plate 182), to make when proximity switch 15 is pressed in the steel rope 23 of the different number of turns on winding reel with roller 11 when contacting iron 16 overlap (or not overlapping), thus adjust the number of turns of the steel rope 23 discharged.Therefore, in the detailed description of the invention that the utility model provides, the anti-mistake of hoisting rope puts device 1 can not only realize excessive release of steel wire rope protection, but also can arrange the length of discharged steel rope 23.
The connection location of proximity switch 15 and the first stay bearing plate 181 (or second stay bearing plate 182) can regulate in several ways, preferably, as shown in Figures 2 and 3, the first stay bearing plate 181 being connected with proximity switch 15 is provided with the second bar shape trench hole 1811 and by being connected to proximity switch 15 through the second fastener of the second bar shape trench hole 1811.In the detailed description of the invention that the utility model provides, self can be connected on the first stay bearing plate 181 as the second fastener by proximity switch 15 itself, also can be attached on the second fastener (such as bolt).
In addition, connection structure can comprise adapter plate 10, and adapter plate 10 is provided with the web portion 101 be connected with connecting panel 17, and connecting panel 17 can adjust along the length direction of connecting panel 17 and Width respectively with the connection location of web portion 101.Particularly, as shown in Figure 2, connecting panel 17 is provided with the Article 3 shape slotted eye 171 that the Width along connecting panel 17 extends, web portion 101 is provided with the Article 4 shape slotted eye 1011 that the length direction along connecting panel 17 extends, connecting panel 17 is connected by the 3rd fastener 192 with web portion 101.By the connection location of adjustment connecting panel 17 with web portion 101, can along the position of the direction adjustment roller 11 of winding reel 22, and can adjust roller 11 near or away from winding reel 22, and then the releasing degree (i.e. the described setting number of turns) of adjustment steel rope 23.
In addition, adapter plate 10 can also be provided with installation portion 102 to be installed on winding support 21, such as, and the mode be bolted.
On the basis of technique scheme, the utility model also provides a kind of hoisting crane, this hoisting crane comprises winch, this winch comprises winding support 21 and is wound with the winding reel 22 of steel rope 23, hoisting crane also comprises the control setup for controlling winding reel 22, wherein, the anti-mistake of hoisting rope that hoisting crane also comprises the utility model to be provided puts device, the anti-mistake of this hoisting rope is put device 1 and is installed on the winding support 21 of winch by connection structure, and sensing unit is electrically connected with control setup.When roller 11 moves to the steel rope 23 compressing the setting number of turns; sensing unit produces and the stopping sent discharges the signal transmission of steel rope 23 to control setup; control setup controls the rotation of winding reel 22; steel rope 23 stops release; realize the protection to steel rope, hoisting speed reducer, improve the safety factor in crane job process.In actual applications, above-mentioned hoisting crane is specifically as follows crawler crane, but also can be the hoisting crane of other types, and the utility model does not do concrete restriction to this.
In sum, the anti-mistake of the hoisting rope that the utility model provides put device by arrange can compress roller on a steel cord and can move at roller and on the steel rope being pressed in predetermined amount time produce and send the sensing unit stopping the signal discharging steel rope, prevent steel rope from excessively discharging, realize hoisting rope, the protection of hoisting speed reducer, it is compact that the anti-mistake of the hoisting rope that the utility model provides puts apparatus structure, installing space is little, and install, debugging is convenient, be applicable to various forms of hoisting mechanism, and it is fast to be quick on the draw, there is higher reliability.On this basis, the utility model also provides a kind of hoisting crane, and the anti-mistake of hoisting rope that this hoisting crane comprises the utility model to be provided puts device, therefore, has above-mentioned advantage equally.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (11)
1. the anti-mistake of hoisting rope puts device, it is characterized in that, the anti-mistake of described hoisting rope is put device (1) and being comprised: be arranged on connection structure on winding support (21) for anti-for described hoisting rope mistake being put device (1), be pivotably connected to the support of described connection structure, roller (11) is on the bracket installed, for making described roller (11) be pressed in be wrapped in the elastic component (14) of the upper steel rope (23) of winding reel (22) and for producing when the drive of described support is moved to described steel rope (23) compressing the setting number of turns at described roller (11) and sending the sensing unit stopping the signal discharging steel rope (23).
2. the anti-mistake of hoisting rope according to claim 1 puts device, it is characterized in that, the described setting number of turns is not less than 3.
3. the anti-mistake of hoisting rope according to claim 1 puts device, it is characterized in that, described elastic component (14) is compressed between described support and connection structure, described sensing unit comprise be arranged on described support and the proximity switch (15) in any one in described connection structure and be arranged in another one can described support be pivoted to make described roller (11) compress described steel rope (23) of the setting number of turns time optionally overlapping with described proximity switch (15) or nonoverlappingly contact iron (16).
4. the anti-mistake of hoisting rope according to claim 3 puts device, it is characterized in that, described support comprises the first support (121) for installing described roller (11) and the second support (122) for being connected described connection structure and described first support (121), described second support (122) is removably connected to described first support (121), described second support (122) can adjust along the length direction of described first support (121) with the connection location of described first support (121), to adjust the length of described support.
5. the anti-mistake of hoisting rope according to claim 4 puts device, it is characterized in that, any one in described first support (121) and described second support (122) is provided with the first bar shape trench hole (1223) that the length direction along described first support (121) extends, another one is provided with mounting hole, and described first support (121) and the second support (122) are by being connected with first fastener (191) of described mounting hole through described first bar shape trench hole (1223).
6. the anti-mistake of hoisting rope according to claim 4 puts device, it is characterized in that, described connection structure comprises connecting panel (17), this connecting panel (17) is provided with and stretches out in the same way and the first stay bearing plate (181) parallel to each other and the second stay bearing plate (182) perpendicular to described connecting panel (17), the axle (13) that the length direction that is parallel to described connecting panel (17) is fixing is provided with between described first stay bearing plate (181) and the second stay bearing plate (182), described second support (122) is connected to described axle (13) pivotly.
7. the anti-mistake of hoisting rope according to claim 6 puts device, it is characterized in that, described first support (121) is formed as U-shaped frame, the end of described second support (122) be provided with the sleeve part (1221) that is sheathed on described axle (13) with for installing described proximity switch (15) or the described mounting structure contacting iron (16), described mounting structure is kink (1222), described elastic component (14) is sheathed on described axle (13), and one end is biased in described kink (1222), the other end is biased in described connecting panel (17).
8. the anti-mistake of hoisting rope according to claim 6 puts device, it is characterized in that, be arranged on described proximity switch (15) in described connection structure or described contact iron (16) is connected in any one in described first stay bearing plate (181) and the second stay bearing plate (182), and the connection location of described one in itself and described first stay bearing plate (181) and the second stay bearing plate (182) can adjust along the plate face of described first stay bearing plate (181) or the second stay bearing plate (182).
9. the anti-mistake of hoisting rope according to claim 8 puts device, it is characterized in that, be connected with and described first stay bearing plate (181) of described proximity switch (15) or described contact iron (16) or the second stay bearing plate (182) be provided with the second bar shape trench hole (1811) and by being connected to described proximity switch (15) or described contact iron (16) through the second fastener of described second bar shape trench hole (1811).
10. the anti-mistake of hoisting rope according to claim 6 puts device, it is characterized in that, described connection structure comprises adapter plate (10), this adapter plate (10) is provided with the web portion (101) be connected with described connecting panel (17), and described connecting panel (17) can adjust along the length direction of described connecting panel (17) and Width respectively with the connection location of described web portion (101).
11. 1 kinds of hoisting cranes, this hoisting crane comprises winch, this winch comprises winding support (21) and is wound with the winding reel (22) of steel rope (23), described hoisting crane also comprises the control setup for controlling described winding reel (22), it is characterized in that, the anti-mistake of hoisting rope that described hoisting crane also comprises according to above-mentioned any one claim puts device, the anti-mistake of this hoisting rope is put device (1) and is installed on the described winding support (21) of described winch by described connection structure, described sensing unit is electrically connected with described control setup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811139.XU CN204369489U (en) | 2014-12-18 | 2014-12-18 | The anti-mistake of hoisting rope puts device and hoisting crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420811139.XU CN204369489U (en) | 2014-12-18 | 2014-12-18 | The anti-mistake of hoisting rope puts device and hoisting crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204369489U true CN204369489U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420811139.XU Expired - Fee Related CN204369489U (en) | 2014-12-18 | 2014-12-18 | The anti-mistake of hoisting rope puts device and hoisting crane |
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| Country | Link |
|---|---|
| CN (1) | CN204369489U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776049A (en) * | 2016-04-26 | 2016-07-20 | 刘湘静 | Intelligent winch for oil exploration |
| CN107829268A (en) * | 2017-11-27 | 2018-03-23 | 深圳市欧兰特智能控制系统有限公司 | Preventing wire rope from falling slot device and clothes hanger |
| CN109292664A (en) * | 2018-12-07 | 2019-02-01 | 中联重科股份有限公司 | Rope press device, hoist engine and crane |
| CN114148935A (en) * | 2022-02-09 | 2022-03-08 | 江苏格雷特起重机械有限公司 | Hoist protection device of crane |
-
2014
- 2014-12-18 CN CN201420811139.XU patent/CN204369489U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776049A (en) * | 2016-04-26 | 2016-07-20 | 刘湘静 | Intelligent winch for oil exploration |
| CN105776049B (en) * | 2016-04-26 | 2019-08-23 | 马鞍山市新桥工业设计有限公司 | A kind of intelligent hoist engine for oil exploration |
| CN107829268A (en) * | 2017-11-27 | 2018-03-23 | 深圳市欧兰特智能控制系统有限公司 | Preventing wire rope from falling slot device and clothes hanger |
| CN109292664A (en) * | 2018-12-07 | 2019-02-01 | 中联重科股份有限公司 | Rope press device, hoist engine and crane |
| CN114148935A (en) * | 2022-02-09 | 2022-03-08 | 江苏格雷特起重机械有限公司 | Hoist protection device of crane |
| CN114148935B (en) * | 2022-02-09 | 2022-04-22 | 江苏格雷特起重机械有限公司 | Hoist protection device of crane |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |