CN202690627U - Telescopic boom and engineering machinery - Google Patents
Telescopic boom and engineering machinery Download PDFInfo
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- CN202690627U CN202690627U CN 201220391327 CN201220391327U CN202690627U CN 202690627 U CN202690627 U CN 202690627U CN 201220391327 CN201220391327 CN 201220391327 CN 201220391327 U CN201220391327 U CN 201220391327U CN 202690627 U CN202690627 U CN 202690627U
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- telescopic boom
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- 238000000034 method Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model discloses an engineering machine tool and flexible cantilever crane thereof, this flexible cantilever crane include basic arm festival (20), first flexible arm festival (30), the flexible arm festival of second (40), act as go-between (70) and terminal box (80) of establishing from the extroversion in proper order, wherein, terminal box (80) set up in basic arm festival (20), the one end of acting as go-between (70) is convoluteed in terminal box (80), the other end connect in the flexible arm festival of second (40). The utility model discloses can utilize the inner space arrangement of each arm festival to act as go-between or the terminal box to can protect act as go-between and terminal box, simplify the structure and improve the work adaptability of complete machine.
Description
Technical field
The utility model relates to engineering machinery, particularly, relates to a kind of telescopic jib and the engineering machinery that comprises this telescopic jib.
Background technique
Engineering machinery (engineering machinery that particularly has aerial work platform) has telescopic jib usually, and telescopic jib is realized the flexible of jibs at different levels by extending means.In the prior art, extending means generally includes telescopic oil cylinder and wire rope row (namely stretching out and the wire rope device of pulling back).Particularly, three joint arms adopt the extending means that a telescopic oil cylinder 1 and a cover stretch out and the wire rope 2 of pulling back forms usually; Four joint arms telescopic oil cylinders 1 of common employing and the extending means (as shown in Figure 1) that two covers are flexible and the wire rope device 2 of pulling back forms, or adopt two telescopic oil cylinders and to overlap the extending means that stretches out and pull back the wire rope composition; Five joint arms adopt the extending means (as shown in Figure 2) that two telescopic oil cylinders 1 and two covers stretch out and the wire rope device 2 of pulling back forms usually.When carrying out the telescopic boom operation by telescopic oil cylinder and extending means flexible and that the wire rope of pulling back forms, the arm that is mutually related is energy-conservation to be stretched out simultaneously or retracts.
Wherein, usually adopt backguy to detect the collapsing length of telescopic jib, for avoiding backguy and stretching out and the wire rope device 2 of pulling back is interfered, usually that backguy and terminal box is external.Particularly, as shown in Figure 3, take the three-section type telescopic boom as example, it comprises from outside to inside sheathed successively basic arm joint the 20, first telescopic boom joint the 30 and second telescopic boom joint 40, terminal box is installed in basic arm and saves 20 outsides, one end of backguy is wound in the terminal box, and the other end is connected to the external part of the second telescopic boom joint 40.When flexible, backguy is with 40 motions of the second telescopic boom joint, by detecting the as can be known current collapsing length of telescopic jib of backguy length.
Because terminal box is arranged on basic arm and saves 20 outsides, terminal box and backguy are collided easily and damage during work, affect the normal operation of telescopic jib and engineering machinery, especially limited engineering machinery and under rugged environment, worked, reduced the labor aptitude of complete machine.
The model utility content
The purpose of this utility model provide a kind of can be with backguy and the built-in telescopic jib of terminal box.
To achieve these goals, the utility model provides a kind of telescopic jib, this telescopic jib comprises from outside to inside sheathed successively basic arm joint, the first telescopic boom joint, the second telescopic boom joint, backguy and terminal box, wherein, described terminal box is arranged in the described basic arm joint, one end of described backguy is wound in the described terminal box, and the other end is connected in described the second telescopic boom joint.
Preferably, described basic arm joint comprises first end and the second end, and described the first telescopic boom joint stretches out from described the second end, and described terminal box is near described first end setting.
Preferably, the other end of described backguy is connected in the root of described the second telescopic boom joint.
Preferably, described telescopic jib comprises extending means, this extending means comprises the first oil hydraulic cylinder and the second oil hydraulic cylinder, described the first oil hydraulic cylinder comprises the first cylinder body and first piston bar, described the second oil hydraulic cylinder comprises the second cylinder body and the second piston rod, described the first cylinder body is fixedly connected with and forms housing assembly with the second cylinder body, described first piston bar and the second piston rod stretch out in the opposite direction, described housing assembly is connected in described the first telescopic boom joint, described first piston bar is connected in described basic arm joint, and described the second piston rod is connected in described the second telescopic boom joint.
Preferably, described the first cylinder body and the second cylinder body are arranged side by side.
Preferably, described housing assembly is connected by bearing pin with described the first telescopic boom joint, and described basic arm joint and the second telescopic boom joint are fixed in by screw tightening respectively in the end of the end of described first piston bar and the second piston rod.
Preferably, an end of described housing assembly is connected in the root that described the first telescopic boom saves by described bearing pin, and the other end of described housing assembly is provided with along the slide block of the inner slide of described the second telescopic boom joint.
Preferably, one end of described housing assembly is provided be used to the joint that connects described the first cylinder body and the second cylinder body and the elastic collar that is set on this joint, be provided with pin-and-hole on the described joint, be provided with the pilot hole of aiming at described pin-and-hole on the described elastic collar, described bearing pin passes described pilot hole and described pin-and-hole is installed.
Preferably, described slide block is a plurality of and along the interior Zhou Junbu of described the second telescopic boom joint.
Preferably, the tie point of the tie point of the tie point of described housing assembly and described the first telescopic boom joint, described first piston bar and described basic arm joint and described the second piston rod and described the second telescopic boom joint is located along the same line, and this straight line parallel is in the flexible direction of described first piston bar and the second piston rod.
Preferably, the tie point of the tie point of the tie point of described housing assembly and described the first telescopic boom joint, described first piston bar and described basic arm joint and described the second piston rod and described the second telescopic boom joint is positioned on the symmetrical center line of described the first cylinder body and described the second cylinder body.
Preferably, the end of described first piston bar is provided with the first assembly department that extends towards described symmetrical center line, the end of described the second piston rod is provided with the second assembly department that extends towards described symmetrical center line, and the middle part of an end of described housing assembly is provided with the 3rd assembly department.
The utility model also provides a kind of engineering machinery, and wherein, this project machinery comprises telescopic jib of the present utility model.
By technique scheme, can utilize the inner space of each arm joint to arrange backguy or terminal box, thereby can protect backguy and terminal box, simplify the structure and improved the labor aptitude of complete machine.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification, is used from explanation the utility model with following embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic representation of four joint arm extending meanss in the explanation prior art;
Fig. 2 is the schematic representation of five joint arm extending meanss in the explanation prior art;
Fig. 3 is backguy and the external structural representation of terminal box of telescopic jib in the explanation prior art;
Fig. 4 is the structural representation of a kind of mode of execution of explanation telescopic jib of the present utility model;
Fig. 5 is the schematic representation of the annexation of the extending means of telescopic jib in the explanatory drawing 4, for clearly demonstrating, has removed backguy and terminal box;
Fig. 6 is the structural representation of the extending means in the explanatory drawing 4.
Description of reference numerals
1: telescopic oil cylinder 2: the flexible and wire rope device of pulling back
10: extending means
10a: stiffening rib 10b: end plate
16: the second assembly departments of 15: the second piston rods of 14: the second cylinder bodies
17: elastic collar 18: slide block
20: 40: the second telescopic boom joints of 30: the first telescopic boom joints of basic arm joint
50: bearing pin 60: bolt
70: backguy 80: terminal box
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
In the utility model, do not doing in the situation of opposite explanation the upper and lower, left and right of the noun of locality of use shown in " upper and lower, left and right " typically refer to reference to the accompanying drawings; " inside and outside " refers to inside and outside with respect to the profile of each parts itself.
According to an aspect of the present utility model, a kind of telescopic jib is provided, this telescopic jib comprises from outside to inside sheathed successively basic arm joint the 20, first telescopic boom joint the 30, second telescopic boom joint 40, backguy 70 and terminal box 80, wherein, described terminal box 80 is arranged in the described basic arm joint 20, one end of described backguy 70 is wound in the described terminal box 80, and the other end is connected in described the second telescopic boom joint 40.
Wherein, need to prove that for three-section type telescopic boom joint described below, basic arm joint the 20, first telescopic boom joint the 30 and second telescopic boom joint 40 is all arm joints of telescopic jib.But for the telescopic jib of more piece more, between basic arm joint the 20 and first telescopic boom joint 30 and between the first telescopic boom joint the 30 and second telescopic boom joint 40 other telescopic boom joints can be set also, but basic arm joint 20 is arranged on outermost arm joint, the arm joint that does not namely stretch, and the second telescopic boom joint 40 is arranged on the most inboard arm joint, namely stretches out arm joint farthest in the telescopic jib.
In the utility model, the inner space of each arm joint can be used for backguy 70 and terminal box 80 are set, thereby can protect backguy 70 and terminal box 80, simplifies the structure and has improved the complete machine labor aptitude.
In the utility model, can adopt flexible the first telescopic boom joint of variety of way the 30 and second telescopic boom joint 40, as long as can utilize easily each arm joint inner space.For example, the first telescopic boom joint the 30 and second telescopic boom joint 40 can be realized stretching by the multi-stage expansion oil hydraulic cylinder.Preferably, described telescopic jib comprises extending means 10, this extending means comprises the first oil hydraulic cylinder and the second oil hydraulic cylinder, described the first oil hydraulic cylinder comprises the first cylinder body 11 and first piston bar 12, described the second oil hydraulic cylinder comprises the second cylinder body 14 and the second piston rod 15, described the first cylinder body 11 is fixedly connected with and forms housing assembly with the second cylinder body 14, described first piston bar 12 and the second piston rod 15 stretch out in the opposite direction, described housing assembly is connected in described the first telescopic boom joint 30, described first piston bar 12 is connected in described basic arm joint 20, and described the second piston rod 15 is connected in described the second telescopic boom joint 40.Thus, by flexible first piston bar 12 and/or the second piston rod 15, can realize easily the flexible of the first telescopic boom joint the 30 and/or second telescopic boom joint 40.Obviously, the first telescopic boom joint the 30 and second telescopic boom joint 40 also need not synchronization telescope, but the first telescopic boom joint the 30 and/or second telescopic boom joint 40 that can optionally stretch as required.In addition, the first oil hydraulic cylinder and the second oil hydraulic cylinder form " binding oil hydraulic cylinder ", so that extending means 10 takes up space is less, are convenient to arrange.In addition, by using " binding oil hydraulic cylinder ", can improve the rigidity of extending means 10, also improve the rigidity of whole telescopic jib simultaneously.
Owing to adopt extending means 10 of the present utility model to need not in each arm joint, wire rope to be set, thereby can utilize easily the inner space of each arm joint that backguy 70 and terminal box 80 are set.
Preferably, described basic arm joint 20 comprises first end and the second end, and described the first telescopic boom joint 30 stretches out from described the second end, and described terminal box 80 is near described first end settings.Because described first end is away from the first telescopic boom joint 30, thereby this position is away from the zones that are subject to 30 impacts of flexible the first telescopic boom joint, thereby can avoid terminal box 80 to be interfered.
In addition, preferably, as shown in Figure 4, the other end of described backguy 70 can be connected in the root of described the second telescopic boom joint 40, thereby can reduce the length of required backguy 70, also reduced the length of the backguy 70 of terminal box 80 required storages, so that terminal box 80 volumes are less, more have been conducive to be arranged on basic arm and save 20 inside.
In Fig. 5 and preferred implementation shown in Figure 6, described the first cylinder body 11 and the second cylinder body 14 are arranged side by side, thereby can further reduce the overall dimensions of extending means 10 and further increase rigidity.Wherein, be arranged side by side finger the first cylinder body 11 and the second cylinder body 14 parallel and justify aligns.For this reason, end plate 10b can be set in the end of housing assembly, to realize described being arranged side by side.Wherein, end plate 10b can only be arranged on an end of housing assembly, for example is arranged on the end that it stretches out the second piston rod 15, and its end that stretches out first piston bar 12 can connect by other means.In addition, for strengthening the first cylinder body 11 and be connected the connection of cylinder body 14, can be around the arranged outside stiffening rib 10a of housing assembly, for example with stiffening rib 10a in the outside that two ends and/or the medium position of its length direction is welded in housing assembly.
In the utility model, extending means 10 is connected the 20, first telescopic boom joint the 30 and second telescopic boom joint 40 and can connects by various suitable modes respectively with basic arm, as long as can be by stretch the first telescopic boom joint 30 and save 40 by flexible the second piston rod 15 second telescopic boom that stretches of flexible first piston bar 12.
For example, being connected of described housing assembly and the first telescopic boom joint 30, first piston bar 12 and basic arm joint 20 be connected and the second piston rod 15 with all can adopt being connected of the second telescopic boom joint 40 hingedly, save in 40 the process the according to circumstances relative position of each parts of vernier expansion mechanism 10 in order to save the 30 and/or second telescopic boom at flexible the first telescopic boom.
Preferably, as shown in Figure 5, described housing assembly can be connected by bearing pin 50 with described the first telescopic boom joint 30, and described basic arm joint the 20 and second telescopic boom joint 40 can be fixed in by screw tightening 60 respectively in the end of the end of described first piston bar 12 and the second piston rod 15.Thus, the two ends of extending means 10 are fixed, and are middle hinged, thereby can guarantee global stability when realizing fine setting, increase the rigidity of extending means 10.
In addition, one end of described housing assembly can be connected in by described bearing pin 50 root of described the first telescopic boom joint 30, with in the situation of the model of determining the first telescopic boom joint 30 and extending means 10, size, increase as far as possible the scalable scope of the first telescopic boom joint 30.Preferably, one end of described housing assembly is provided be used to the joint that connects described the first cylinder body 11 and the second cylinder body 14 and the elastic collar 17 that is set on this joint, be provided with pin-and-hole on the described joint, be provided with the pilot hole of aiming at described pin-and-hole on the described elastic collar 17, described bearing pin 50 passes described pilot hole and described pin-and-hole is installed.Thus, elastic collar 17 allows bearing pin 50 with respect to pilot hole small displacement to occur in telescopic process, namely allows extending means 10 that micro-strain occurs.Wherein, joint can be for being rigidly connected plate or be set in the rigidity collar of this end of housing assembly.
In addition, preferably, the other end of described housing assembly can be provided with along the slide block 18 of the inner slide of described the second telescopic boom joint 40, thereby can be by the slip of slide block 18 guiding housing assemblies with respect to the second telescopic boom joint 40, and can save 40 so that housing assembly is supported in the second telescopic boom by slide block 18, thereby make extending means 10 obtain more stable support.More preferably, described slide block 18 is a plurality of and along the interior Zhou Junbu of described the second telescopic boom joint 40, thus to extending means 10 along uniform guiding and support circumferentially are provided.Wherein, slide block 18 can be arranged on by suitable mode the other end of housing assembly, for example is arranged on the outside of the first cylinder body 11 and the second cylinder body 14, perhaps is arranged on the above-mentioned end 10b.
In addition, as shown in Figure 6, in preferred implementation of the present utility model, the tie point of the tie point of the tie point of described housing assembly and described the first telescopic boom joint 30, described first piston bar 12 and described basic arm joint 20 and described the second piston rod 15 and described the second telescopic boom joint 40 is located along the same line, this straight line parallel is in the flexible direction of described first piston bar 12 and the second piston rod 15, the lateral load of being born with the extending means 10 that reduces in the telescopic process.Particularly, the active force that bears of first piston bar 12 and the second piston rod 15 is respectively F1 and F2.By the preferred structure of present embodiment, the direction of F1 and F2 is positioned at same straight line and is parallel to first piston bar 12 and the flexible direction of the second piston rod 15, is above-below direction among Fig. 6 thereby do not have transverse to extending means 10() component.Owing to do not have above-mentioned component, thereby can reduce 10 pairs of basic arm joints of extending means the 20, first telescopic boom joint the 30 and second telescopic boom joint, 40 lateral loads that apply, thereby can reduce the frictional force between basic arm joint the 20, first telescopic boom joint the 30 and second telescopic boom joint 40, so that the first telescopic boom joint the 30 and second telescopic boom joint 40 can steadily stretch.
More preferably, the tie point of the tie point of the tie point of described housing assembly and described the first telescopic boom joint 30, described first piston bar 12 and described basic arm joint 20 and described the second piston rod 15 and described the second telescopic boom joint 40 is positioned on the symmetrical center line of described the first cylinder body 11 and described the second cylinder body 14.In above-mentioned preferred structure, the direction of F1 and F2 is positioned on the symmetrical center line of the first cylinder body 11 and the second cylinder body 14 substantially.Two-way stretching out under the state shown in Figure 6, F1 and F2 are substantially reverse.Thus, above-mentioned lateral load not only can be reduced, the moment of torsion that F1 and F2 produce extending means 10 can also be reduced as far as possible.
For this reason, can realize extending means 10 and basic arm joint the 20, first telescopic boom joint 30 and be connected being connected of telescopic boom joint 40 by suitable layout, be positioned on the described symmetrical center line so that the tie point of the tie point of described housing assembly and the first telescopic boom joint 30, first piston bar 12 and basic arm joint 20 and the second piston rod 15 and the second telescopic boom save 40 tie point.Preferably, as shown in Figure 6, the end of described first piston bar 12 can be provided with the first assembly department 13 that extends towards described symmetrical center line, the end of described the second piston rod 15 can be provided with the second assembly department 16 that extends towards described symmetrical center line, and the middle part of an end of described housing assembly is provided with the 3rd assembly department.Wherein, the first assembly department 13 and the second assembly department 16 can be respectively arranged with screw, be provided with corresponding screw on basic arm joint the 20 and second telescopic boom joint 40, thereby can realize that first piston bars 12 be connecteds 20 connection and the second piston rod 15 and be connected telescopic boom and save 40 connection with basic arm by the screw tightening 60 that passes corresponding screw.In addition, as mentioned above, be articulated at housing assembly in the situation of the first telescopic boom joint 30, pin-and-hole is opened on the 3rd assembly department.
Be understandable that, extending means 10 of the present utility model is used for the flexible of adjacent three arms joint, when telescopic jib comprises that more multi-arm saves, can regard three adjacent arms joints as a unit, an extending means 10 is set in each unit can finishes more stretching of multi-arm joint.
According on the other hand of the present utility model, a kind of engineering machinery is provided, wherein, this project machinery comprises telescopic jib of the present utility model.In the engineering machinery of the present utility model, the inner space of each arm joint can be used for backguy 70 and terminal box 80 are set, thereby can protect backguy 70 and terminal box 80, simplifies the structure and has improved the complete machine labor aptitude.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope 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.
Need to prove that in addition each the concrete technical characteristics described in above-mentioned embodiment in reconcilable situation, can make up by any suitable mode.For fear of unnecessary repetition, the utility model is to the no longer separately explanation of various possible compound modes.
In addition, also can carry out combination in any between the various mode of execution 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 (13)
1. telescopic jib, this telescopic jib comprises from outside to inside sheathed successively basic arm joint (20), the first telescopic boom joint (30), the second telescopic boom joint (40), backguy (70) and terminal box (80), it is characterized in that, described terminal box (80) is arranged in the described basic arm joint (20), one end of described backguy (70) is wound in the described terminal box (80), and the other end is connected in described the second telescopic boom joint (40).
2. telescopic jib according to claim 1 is characterized in that, described basic arm joint (20) comprises first end and the second end, and described the first telescopic boom joint (30) stretches out from described the second end, and described terminal box (80) is near described first end setting.
3. telescopic jib according to claim 1 and 2 is characterized in that, the other end of described backguy (70) is connected in the root of described the second telescopic boom joint (40).
4. telescopic jib according to claim 1, it is characterized in that, described telescopic jib comprises extending means (10), this extending means comprises the first oil hydraulic cylinder and the second oil hydraulic cylinder, described the first oil hydraulic cylinder comprises the first cylinder body (11) and first piston bar (12), described the second oil hydraulic cylinder comprises the second cylinder body (14) and the second piston rod (15), described the first cylinder body (11) is fixedly connected with and forms housing assembly with the second cylinder body (14), described first piston bar (12) and the second piston rod (15) stretch out in the opposite direction, described housing assembly is connected in described the first telescopic boom joint (30), described first piston bar (12) is connected in described basic arm joint (20), and described the second piston rod (15) is connected in described the second telescopic boom joint (40).
5. telescopic jib according to claim 4 is characterized in that, described the first cylinder body (11) and the second cylinder body (14) are arranged side by side.
6. telescopic jib according to claim 5, it is characterized in that, described housing assembly saves (30) with described the first telescopic boom and is connected by bearing pin (50), and described basic arm joint (20) and the second telescopic boom joint (40) are fixed in by screw tightening (60) respectively in the end of the end of described first piston bar (12) and the second piston rod (15).
7. telescopic jib according to claim 6, it is characterized in that, one end of described housing assembly is connected in the root that described the first telescopic boom saves (30) by described bearing pin (50), and the other end of described housing assembly is provided with along the slide block (18) of the inner slide of described the second telescopic boom joint (40).
8. telescopic jib according to claim 7, it is characterized in that, one end of described housing assembly is provided be used to the joint that connects described the first cylinder body (11) and the second cylinder body (14) and the elastic collar (17) that is set on this joint, be provided with pin-and-hole on the described joint, described elastic collar is provided with the pilot hole of aiming at described pin-and-hole on (17), and described bearing pin (50) passes described pilot hole and described pin-and-hole is installed.
9. telescopic jib according to claim 7 is characterized in that, described slide block (18) is a plurality of and saves the interior Zhou Junbu of (40) along described the second telescopic boom.
10. the described telescopic jib of any one according to claim 5-9, it is characterized in that, the tie point of the tie point of the tie point of described housing assembly and described the first telescopic boom joint (30), described first piston bar (12) and described basic arm joint (20) and described the second piston rod (15) and described the second telescopic boom joint (40) is located along the same line, and this straight line parallel is in the flexible direction of described first piston bar (12) and the second piston rod (15).
11. telescopic jib according to claim 10, it is characterized in that the tie point of the tie point of the tie point of described housing assembly and described the first telescopic boom joint (30), described first piston bar (12) and described basic arm joint (20) and described the second piston rod (15) and described the second telescopic boom joint (40) is positioned on the symmetrical center line of described the first cylinder body (11) and described the second cylinder body (14).
12. telescopic jib according to claim 11, it is characterized in that, the end of described first piston bar (12) is provided with the first assembly department (13) that extends towards described symmetrical center line, the end of described the second piston rod (15) is provided with the second assembly department (16) that extends towards described symmetrical center line, and the middle part of an end of described housing assembly is provided with the 3rd assembly department.
13. an engineering machinery is characterized in that, this project machinery comprises according to claim 1 the described telescopic jib of any one in-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391327 CN202690627U (en) | 2012-08-08 | 2012-08-08 | Telescopic boom and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391327 CN202690627U (en) | 2012-08-08 | 2012-08-08 | Telescopic boom and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690627U true CN202690627U (en) | 2013-01-23 |
Family
ID=47546253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220391327 Expired - Fee Related CN202690627U (en) | 2012-08-08 | 2012-08-08 | Telescopic boom and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690627U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206440A (en) * | 2013-04-22 | 2013-07-17 | 蔚孜电子商务（上海）有限公司 | Multi-section type extension pipe |
| CN108799278A (en) * | 2017-04-28 | 2018-11-13 | 斯凯孚公司 | Telescopic mast |
| DE102022112279B3 (en) | 2022-05-17 | 2023-10-26 | Ewellix AB | lifting column |
-
2012
- 2012-08-08 CN CN 201220391327 patent/CN202690627U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206440A (en) * | 2013-04-22 | 2013-07-17 | 蔚孜电子商务（上海）有限公司 | Multi-section type extension pipe |
| CN103206440B (en) * | 2013-04-22 | 2015-01-28 | 蔚孜电子商务（上海）有限公司 | Multi-section type extension pipe |
| CN108799278A (en) * | 2017-04-28 | 2018-11-13 | 斯凯孚公司 | Telescopic mast |
| CN108799278B (en) * | 2017-04-28 | 2021-10-08 | 斯凯孚公司 | Telescopic column |
| DE102022112279B3 (en) | 2022-05-17 | 2023-10-26 | Ewellix AB | lifting column |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130123 Termination date: 20160808 |
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| CF01 | Termination of patent right due to non-payment of annual fee |