CN204162331U - Anti-squat system and hoisting crane - Google Patents
Anti-squat system and hoisting crane Download PDFInfo
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- CN204162331U CN204162331U CN201420504092.2U CN201420504092U CN204162331U CN 204162331 U CN204162331 U CN 204162331U CN 201420504092 U CN201420504092 U CN 201420504092U CN 204162331 U CN204162331 U CN 204162331U
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- retractable rod
- support part
- limited support
- squat system
- auxiliary
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Abstract
The utility model provides a kind of anti-squat system and hoisting crane.Anti-squat system comprises: retractable rod, the adjustable in length of retractable rod, and retractable rod has the first Support Position and the first advanced position, and when retractable rod is in the first advanced position, the entire length of retractable rod is less than entire length when retractable rod is in the first Support Position; The long adjusting portion of bar, the long adjusting portion of bar is movably arranged on retractable rod with the length of adjustable telescopic rod assembly.Because the retractable rod in the utility model has the first Support Position and the first advanced position simultaneously, thus this anti-squat system can not only meet the support requirement of auxiliary, can also ensure that auxiliary falls to the horizontal front of principal arm smoothly and carries out dismantling the operation of anti-squat system without the need to staff, thus reduce staff labour intensity, improve work efficiency, reduce the operation complexity of anti-squat system and eliminate potential safety hazard.
Description
Technical field
The utility model relates to hoisting crane technical field, more specifically, relates to a kind of anti-squat system and hoisting crane.
Background technology
Anti-squat system is widely used in crane facility.
As shown in Figure 1, anti-squat system 10 ' of the prior art is arranged between principal arm 30 ' and mast 40 ', thus prevents auxiliary 50 ' from tumbling backward.
As shown in Figure 2, the collapsing length of anti-squat system 10 ' of the prior art is regular length, when anti-squat system can meet support requirement, anti-squat system 10 ' cannot ensure that auxiliary 50 ' can fall to the horizontal front of principal arm 30 ' smoothly, anti-squat system 10 ' can limit the position relationship between auxiliary 50 ' and principal arm 30 ', thus the horizontal front of being transferred completely by auxiliary 50 ' again after being dismantled by anti-squat system 10 ' to principal arm 30 ' is needed, to fall to be placed on auxiliary 50 ' to the perch place on ground.
During owing to transferring auxiliary 50 ', need artificial climbing hoisting crane and anti-squat system 10 ' is disassembled, guarantee auxiliary 50 ' falls on ground completely, thus add the labour intensity of staff, reduce work efficiency, waste the time, add operation complexity, and make staff face potential safety hazard.
Utility model content
The utility model aims to provide a kind of anti-squat system and hoisting crane, with solve in prior art cause anti-squat system cannot meet auxiliary falling because anti-squat system length is certain length requirement, auxiliary just can must be made to fall by removal anti-squat system and large, the ineffective problem of intensity of workers that causes.
For solving the problems of the technologies described above, according to an aspect of the present utility model, provide a kind of anti-squat system, comprise: retractable rod, the adjustable in length of retractable rod, and retractable rod has the first Support Position and the first advanced position, and when retractable rod is in the first advanced position, the entire length of retractable rod is less than entire length when retractable rod is in the first Support Position; The long adjusting portion of bar, the long adjusting portion of bar is movably arranged on retractable rod with the length of adjustable telescopic rod assembly.
Further, retractable rod comprises: outer tube; Interior bar, outer tube is slidably located in the outside of interior bar, and being stretched out by the first end of outer tube at least partially of interior bar; When retractable rod is in the first advanced position, the external part of interior bar has the first extension elongation; When retractable rod is in the first Support Position, the external part of interior bar has the second extension elongation, and the first extension elongation is less than the second extension elongation.
Further, the long adjusting portion of bar comprises limited support part, and limited support part is flexibly connected with retractable rod, and limited support part has the first abutted position and the first free position; When limited support part is in the first abutted position, in limited support part keeps, bar is constant by extension elongation that is protruding in outer tube and bar in maintenance, and makes retractable rod be in the first Support Position; When limited support part is in the first free position, interior bar can freely bounce back in outer tube, and makes retractable rod be in the first advanced position.
Further, retractable rod also comprises positioning table, positioning table be arranged on the external part of interior bar end and and form located space between the outer wall of interior bar; Limited support part is bending shape, limited support part and outer tube hinged, the first end of limited support part abuts with positioning table or departs from; The long adjusting portion of bar also comprises pouring weight, and pouring weight is arranged on the second end of limited support part, and pouring weight regulates the position relationship between limited support part and positioning table according to the control position of retractable rod; When retractable rod is moved to the first Support Position by the first free position, pouring weight under gravity to away from retractable rod a lateral movement and force the first end of limited support part to abut with positioning table, remain on the first Support Position to make retractable rod; When retractable rod is moved to the first free position by the first Support Position, pouring weight under gravity near retractable rod a lateral movement and force the first end of limited support part by slippage on positioning table, remain on the first free position to make retractable rod.
Further, the long adjusting portion of bar also comprises mount pad, on the outer wall that mount pad is fixedly installed on outer tube and near the free end side of interior bar, limited support part and mount pad hinged, can freely overturn to make limited support part.
Further, limited support part comprises: the first holding piece; Second holding piece, first holding piece and the second holding piece are symmetrical arranged, and distance between the first end of the first end of the first holding piece and the second holding piece is constant to the bearing of trend of the second end along the first end of limited support part, distance between second end of the first holding piece and the second end of the second holding piece increases along the first end of limited support part gradually to the bearing of trend of the second end and forms grasping part, and pouring weight is fixed in grasping part.
According to another aspect of the present utility model, provide a kind of hoisting crane, comprise anti-squat system, anti-squat system is above-mentioned anti-squat system.
Further, hoisting crane also comprises: principal arm, and principal arm has principal arm head; Mast, mast is connected pivotly with principal arm head, and the retractable rod of anti-squat system is connected all pivotly with mast, principal arm head.
Further, hoisting crane also comprises auxiliary, and auxiliary has auxiliary coxopodite, and mast and auxiliary coxopodite are fixedly installed, and auxiliary coxopodite is connected pivotly with principal arm head.
The adjustable in length of the retractable rod in the utility model, and retractable rod has the first Support Position and the first advanced position, and when retractable rod is in the first advanced position, the entire length of retractable rod is less than entire length when retractable rod is in the first Support Position; The long adjusting portion of bar is movably arranged on retractable rod with the length of adjustable telescopic rod assembly.Because the retractable rod in the utility model has the first Support Position and the first advanced position simultaneously, thus this anti-squat system can not only meet the support requirement of auxiliary, can also ensure that auxiliary falls to the horizontal front of principal arm smoothly and carries out dismantling the operation of anti-squat system without the need to staff, thus reduce staff labour intensity, improve work efficiency, reduce the operation complexity of anti-squat system and eliminate potential safety hazard, and then improve the reliability of service of anti-squat system.Meanwhile, the anti-squat system in the utility model has that structure is simple, the feature of low cost of manufacture.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the installation relation schematic diagram of anti-squat system of the prior art;
Fig. 2 diagrammatically illustrates the structural representation of anti-squat system of the prior art;
Fig. 3 retractable rod diagrammatically illustrated in the anti-squat system in the utility model is in structural representation during the first Support Position;
Fig. 4 diagrammatically illustrates A place partial enlarged drawing in Fig. 3;
Fig. 5 retractable rod diagrammatically illustrated in the anti-squat system in the utility model is in structural representation during the first advanced position;
Fig. 6 diagrammatically illustrates B place partial enlarged drawing in Fig. 5; And
Fig. 7 diagrammatically illustrates the structural representation of the long adjusting portion of bar in the utility model.
Reference numeral in figure: 10, retractable rod; 11, outer tube; 12, interior bar; 13, positioning table; 20, the long adjusting portion of bar; 21, limited support part; 21a, the first holding piece; 21b, the second holding piece; 21c, grasping part; 22, pouring weight; 23, mount pad; 30, principal arm; 31, principal arm head; 40, mast; 50, auxiliary; 51, auxiliary coxopodite; 60, strut bar; 10 ', anti-squat system; 30 ', principal arm; 40 ', mast; 50 ', auxiliary.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As first aspect of the present utility model, provide a kind of anti-squat system.As shown in Fig. 3 to Fig. 7, anti-squat system comprises retractable rod 10 and the long adjusting portion 20 of bar, the adjustable in length of retractable rod 10, and retractable rod 10 has the first Support Position and the first advanced position, and when retractable rod 10 is in the first advanced position, the entire length of retractable rod 10 is less than entire length when retractable rod 10 is in the first Support Position; The long adjusting portion 20 of bar is movably arranged on retractable rod 10 with the length of adjustable telescopic rod assembly 10.Because the retractable rod 10 in the utility model has the first Support Position and the first advanced position simultaneously, thus this anti-squat system can not only meet the support requirement of auxiliary 50, can also ensure that auxiliary 50 falls to the horizontal front of principal arm 30 smoothly and carries out dismantling the operation of anti-squat system without the need to staff, thus reduce staff labour intensity, improve work efficiency, reduce the operation complexity of anti-squat system and eliminate potential safety hazard, and then improve the reliability of service of anti-squat system.Meanwhile, the anti-squat system in the utility model has that structure is simple, the feature of low cost of manufacture.
Retractable rod 10 in the utility model comprises outer tube 11 and interior bar 12, and outer tube 11 is slidably located in the outside of interior bar 12, and being stretched out by the first end of outer tube 11 at least partially of interior bar 12; When retractable rod 10 is in the first advanced position, the external part of interior bar 12 has the first extension elongation; When retractable rod 10 is in the first Support Position, the external part of interior bar 12 has the second extension elongation, and the first extension elongation is less than the second extension elongation.Because outer tube 11 is slidably located in the outside of interior bar 12, thus retractable rod 10 has the adjustable feature of entire length.And different according to the extension elongation of interior bar 12, make retractable rod 10 can meet the length requirement of auxiliary 50 when different operating state simultaneously, thus ensure that the working stability of anti-squat system.
In preferred implementation as shown in Figure 4 and Figure 6, the long adjusting portion 20 of bar comprises limited support part 21, and limited support part 21 is flexibly connected with retractable rod 10, and limited support part 21 has the first abutted position and the first free position; When limited support part 21 is in the first abutted position, limited support part 21 keeps interior bar 12 constant by extension elongation that is protruding in outer tube 11 and bar 12 in maintenance, and makes retractable rod 10 be in the first Support Position; When limited support part 21 is in the first free position, interior bar 12 can freely bounce back in outer tube 11, and makes retractable rod 10 be in the first advanced position.Because limited support part 21 is flexibly connected with retractable rod 10, and limited support part 21 has the first abutted position and the first free position, thus retractable rod 10 can be made to be in different mode of operations by the change in location of limited support part 21, and meet support requirement and the whereabouts requirement of auxiliary 50.
Preferably, retractable rod 10 also comprises positioning table 13, positioning table 13 be arranged on the external part of interior bar 12 end and and form located space between the outer wall of interior bar 12; Limited support part 21 is bending shape, and limited support part 21 is hinged with outer tube 11, and the first end of limited support part 21 abuts with positioning table 13 or departs from; The long adjusting portion 20 of bar also comprises pouring weight 22, and pouring weight 22 is arranged on the second end of limited support part 21, and pouring weight 22 regulates the position relationship (please refer to Fig. 4 and Fig. 6) between limited support part 21 and positioning table 13 according to the control position of retractable rod 10; When retractable rod 10 is moved to the first Support Position by the first free position, pouring weight 22 under gravity to away from retractable rod 10 a lateral movement and force the first end of limited support part 21 to abut with positioning table 13, remain on the first Support Position to make retractable rod 10; When retractable rod 10 is moved to the first free position by the first Support Position, pouring weight 22 under gravity near retractable rod 10 a lateral movement and force the first end of limited support part 21 by slippage on positioning table 13, remain on the first free position to make retractable rod 10.In this scenario, second end of limited support part 21 is provided with pouring weight 22, thus the weight of the second end of limited support part 21 is added, thus make the two ends non-uniform mass of limited support part 21, limited support part 21 can according to the position relationship between the position adjustments limited support part 21 of auxiliary 50 and outer tube 11 in motion process to ensure auxiliary 50, and then length requirement limited support part 21 can being met support auxiliary 50, can also meet length requirement when auxiliary 50 falls.In the preferred implementation shown in Fig. 4, bending flex point and the outer tube 11 of limited support part 21 are hinged.
As shown in Figure 4 and Figure 6, the long adjusting portion 20 of bar in the utility model also comprises mount pad 23, on the outer wall that mount pad 23 is fixedly installed on outer tube 11 and near the free end side of interior bar 12, limited support part 21 is hinged with mount pad 23, can freely overturn to make limited support part 21.Because limited support part 21 is hinged on outer tube 11 by mount pad 23, thus ensure that the installation reliability of limited support part 21 and retractable rod 10, also assures that the freedom of motion of limited support part 21 simultaneously, thus limited support part 21 freely can be switched in the first abutted position and the first free position according to the state of auxiliary 50, and then ensure that the operating reliability of anti-squat system.
In preferred implementation as shown in Figure 7, limited support part 21 comprises the first holding piece 21a and the second holding piece 21b, first holding piece 21a and the second holding piece 21b is symmetrical arranged, and distance between the first end of the first end of the first holding piece 21a and the second holding piece 21b is constant to the bearing of trend of the second end along the first end of limited support part 21, distance between second end of the first holding piece 21a and second end of the second holding piece 21b increases gradually along the first end of limited support part 21 to the bearing of trend of the second end and forms grasping part 21c, pouring weight 22 is fixed in grasping part 21c.Because the first end of the first holding piece 21a increases gradually to the bearing of trend of the second end and forms grasping part 21c, thus ensure that pouring weight 22 is fixed on the installation reliability in grasping part 21c.Certainly, pouring weight 22 can also directly weld or be bonded in the second end of limited support part 21.
In a not shown embodiment, the sidewall of outer tube 11 is provided with perforate, the outside face of interior bar 12 has the buckle matched with perforate, and it is inner that interior bar 12 is slidably arranged in outer tube 11, and retractable rod 10 is in the first Support Position when buckle is fastened in perforate.In this embodiment, the long adjusting portion 20 of bar comprises Compress Spring and pressing piece, and Compress Spring is arranged in outer tube 11 also to abut and is arranged between interior bar 12 and the second end of outer tube 11, and the first end of pressing piece abuts with buckle or is separated.When in the process that auxiliary 50 falls, pressing piece carries out pressing operation to buckle gradually, further, buckle pressing is entered the inner space of outer tube 11 by pressing piece, thus the detenting force between outer tube 11 and interior bar 12 is disappeared, now under the effect of auxiliary 50, interior bar 12 can bounce back in outer tube 11, and makes retractable rod 10 be in the first advanced position.
As second aspect of the present utility model, provide a kind of hoisting crane.As shown in Fig. 3 to Fig. 7, hoisting crane comprises anti-squat system, and anti-squat system is above-mentioned anti-squat system.Because the anti-squat system in the utility model has length-adjustable feature, and retractable rod 10 has the first Support Position and the first advanced position simultaneously, thus this anti-squat system can not only meet the support requirement of auxiliary 50, can also ensure that auxiliary 50 falls to the horizontal front of principal arm 30 smoothly and carries out dismantling the operation of anti-squat system without the need to staff, thus ensure that safety in utilization and the functional reliability of hoisting crane.
As shown in Figure 3 and Figure 5, hoisting crane also comprises principal arm 30 and mast 40, and principal arm 30 has principal arm head 31, and mast 40 is connected pivotly with principal arm head 31, and the retractable rod 10 of anti-squat system is connected all pivotly with mast 40, principal arm head 31.Because anti-squat system is arranged between principal arm 30 and mast 40, thus effectively can regulate the stressed relation between principal arm 30 and mast 40, thus ensure the working stability of hoisting crane.
Preferably, hoisting crane also comprises auxiliary 50, and auxiliary 50 has auxiliary coxopodite 51, and mast 40 and auxiliary coxopodite 51 are fixedly installed, and auxiliary coxopodite 51 is connected pivotly with principal arm head 31.Because auxiliary coxopodite 51 is connected pivotly with principal arm head 31, thus ensure that the kinematic dexterity of auxiliary 50, and anti-squat system effectively can prevent auxiliary 50 excessively hypsokinesis.
Hoisting crane in the utility model also comprises strut bar 60, and strut bar 60 two ends are connected with mast 40 and auxiliary 50 (please refer to Fig. 3 and Fig. 5) respectively.Owing to being provided with strut bar 60 between mast 40 and auxiliary 50, thus improve the connection reliability between auxiliary 50 and mast 40, and make auxiliary 50 have stable bearing force, can more stably lift by crane heavier object.
When auxiliary 50 in the utility model is in running order, limited support part 21 can make the first end of limited support part 21 withstand positioning table 13 under the Action of Gravity Field of pouring weight 22, thus make retractable rod 10 be in the first Support Position, and avoid moving further between interior bar 12 and outer tube 11, namely limit auxiliary 50 and tumble backward.
When auxiliary 50 in the utility model is in arm state, limited support part 21 can make the first end of limited support part 21 by slippage on positioning table 13 under the Action of Gravity Field of pouring weight 22, thus the entire length of retractable rod 10 is shortened and is in the first advanced position, namely realize auxiliary 50 free fall.
Preferably, hoisting crane is crawler crane.
In sum, the length of anti-squat system is the decisive factor preventing auxiliary 50 tipping backwards, but the length of anti-squat system is also restriction auxiliary 50 freely falls the decisive factor of arm.The utility model is by the mode of operation of the adjustment limited support part 21 of pouring weight 22, and then the entire length of adjustable telescopic rod assembly 10, and ensures that hoisting crane is operated in security standpoint.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. an anti-squat system, is characterized in that, comprising:
Retractable rod (10), the adjustable in length of described retractable rod (10), and described retractable rod (10) has the first Support Position and the first advanced position, and when described retractable rod (10) is in described first advanced position, the entire length of described retractable rod (10) is less than entire length when described retractable rod (10) is in described first Support Position;
The long adjusting portion of bar (20), the long adjusting portion of described bar (20) is movably arranged on described retractable rod (10) to regulate the length of described retractable rod (10).
2. anti-squat system according to claim 1, is characterized in that, described retractable rod (10) comprising:
Outer tube (11);
Interior bar (12), described outer tube (11) is slidably located in the outside of described interior bar (12), and being stretched out by the first end of outer tube (11) at least partially of described interior bar (12);
When described retractable rod (10) is in described first advanced position, the external part of described interior bar (12) has the first extension elongation;
When described retractable rod (10) is in described first Support Position, the external part of described interior bar (12) has the second extension elongation, and described first extension elongation is less than described second extension elongation.
3. anti-squat system according to claim 2, it is characterized in that, the long adjusting portion of described bar (20) comprises limited support part (21), described limited support part (21) is flexibly connected with described retractable rod (10), and described limited support part (21) has the first abutted position and the first free position;
When described limited support part (21) is in described first abutted position, described limited support part (21) keeps described interior bar (12) by protruding in described outer tube (11) and keep the extension elongation of described interior bar (12) constant, and makes described retractable rod (10) be in described first Support Position;
When described limited support part (21) is in described first free position, described interior bar (12) can freely bounce back in described outer tube (11), and makes described retractable rod (10) be in described first advanced position.
4. anti-squat system according to claim 3, is characterized in that,
Described retractable rod (10) also comprises positioning table (13), described positioning table (13) be arranged on the external part of described interior bar (12) end and and form located space between the outer wall of described interior bar (12);
Described limited support part (21) is bending shape, described limited support part (21) is hinged with described outer tube (11), and the first end of described limited support part (21) abuts with described positioning table (13) or departs from;
The long adjusting portion of described bar (20) also comprises pouring weight (22), described pouring weight (22) is arranged on the second end of described limited support part (21), and described pouring weight (22) regulates the position relationship between described limited support part (21) and described positioning table (13) according to the control position of described retractable rod (10);
When described retractable rod (10) is moved to described first Support Position by described first free position, described pouring weight (22) under gravity to away from described retractable rod (10) a lateral movement and force the first end of described limited support part (21) to abut with described positioning table (13), remain on described first Support Position to make described retractable rod (10);
When described retractable rod (10) is moved to described first free position by described first Support Position, described pouring weight (22) under gravity near described retractable rod (10) a lateral movement and force the first end of described limited support part (21) by the upper slippage of described positioning table (13), remain on described first free position to make described retractable rod (10).
5. anti-squat system according to claim 4, it is characterized in that, the long adjusting portion of described bar (20) also comprises mount pad (23), on the outer wall that described mount pad (23) is fixedly installed on described outer tube (11) and near the free end side of described interior bar (12), described limited support part (21) is hinged with described mount pad (23), can freely overturn to make described limited support part (21).
6. anti-squat system according to claim 4, is characterized in that, described limited support part (21) comprising:
First holding piece (21a);
Second holding piece (21b), described first holding piece (21a) and described second holding piece (21b) are symmetrical arranged, and distance between the first end of described first holding piece (21a) and the first end of described second holding piece (21b) is constant to the bearing of trend of the second end along the first end of described limited support part (21), distance between second end of described first holding piece (21a) and the second end of described second holding piece (21b) increases gradually along the first end of described limited support part (21) to the bearing of trend of the second end and forms grasping part (21c), described pouring weight (22) is fixed in described grasping part (21c).
7. a hoisting crane, comprises anti-squat system, it is characterized in that, described anti-squat system is the anti-squat system according to any one of claim 1 to 6.
8. hoisting crane according to claim 7, is characterized in that, described hoisting crane also comprises:
Principal arm (30), described principal arm (30) has principal arm head (31);
Mast (40), described mast (40) is connected pivotly with described principal arm head (31), and the retractable rod of described anti-squat system (10) is connected all pivotly with described mast (40), described principal arm head (31).
9. hoisting crane according to claim 8, it is characterized in that, described hoisting crane also comprises auxiliary (50), described auxiliary (50) has auxiliary coxopodite (51), described mast (40) and described auxiliary coxopodite (51) are fixedly installed, and described auxiliary coxopodite (51) is connected pivotly with described principal arm head (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420504092.2U CN204162331U (en) | 2014-09-02 | 2014-09-02 | Anti-squat system and hoisting crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420504092.2U CN204162331U (en) | 2014-09-02 | 2014-09-02 | Anti-squat system and hoisting crane |
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| CN204162331U true CN204162331U (en) | 2015-02-18 |
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| CN201420504092.2U Active CN204162331U (en) | 2014-09-02 | 2014-09-02 | Anti-squat system and hoisting crane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174089A (en) * | 2015-10-10 | 2015-12-23 | 徐工集团工程机械股份有限公司 | Auxiliary arm system and arm rack system |
| US9851049B1 (en) | 2016-08-29 | 2017-12-26 | John Rene Spronken | Crane tie arm adjustment |
| USD874082S1 (en) | 2016-08-29 | 2020-01-28 | John Rene Spronken | Crane tie-arm |
-
2014
- 2014-09-02 CN CN201420504092.2U patent/CN204162331U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174089A (en) * | 2015-10-10 | 2015-12-23 | 徐工集团工程机械股份有限公司 | Auxiliary arm system and arm rack system |
| CN105174089B (en) * | 2015-10-10 | 2017-08-08 | 徐工集团工程机械股份有限公司 | Auxiliary arm system and boom system |
| US9851049B1 (en) | 2016-08-29 | 2017-12-26 | John Rene Spronken | Crane tie arm adjustment |
| USD874082S1 (en) | 2016-08-29 | 2020-01-28 | John Rene Spronken | Crane tie-arm |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200930 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co., Ltd Address before: 102206 Beijing, Shahe, Changping District Town, Sha Yang Road, Beiqi Futian Motor Company Limited law and Intellectual Property Department Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
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| TR01 | Transfer of patent right |