CN219792285U - Hand-pulling auxiliary arm capable of changing amplitude up and down - Google Patents
Hand-pulling auxiliary arm capable of changing amplitude up and down Download PDFInfo
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- CN219792285U CN219792285U CN202321216870.3U CN202321216870U CN219792285U CN 219792285 U CN219792285 U CN 219792285U CN 202321216870 U CN202321216870 U CN 202321216870U CN 219792285 U CN219792285 U CN 219792285U
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- 230000003014 reinforcing effect Effects 0.000 claims description 26
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Jib Cranes (AREA)
Abstract
The utility model discloses a hand auxiliary arm capable of vertically changing amplitude, which relates to the technical field of crane mechanical arms and comprises a fixed arm and an amplitude changing arm, wherein the front side and the rear side of one end of the fixed arm are respectively and fixedly connected with circular arc-shaped lug plates, the upper side and the lower side of each circular arc-shaped lug plate are respectively provided with amplitude changing adjusting holes at equal intervals, the upper side and the lower side of one end of the amplitude changing arm are respectively provided with inserting holes, amplitude changing shafts I are inserted into the inserting holes at the upper side of the amplitude changing arm, the front end and the rear end of each amplitude changing shaft I respectively penetrate through amplitude changing adjusting holes corresponding to the top of the two circular arc-shaped lug plates, amplitude changing shafts II are inserted into the inserting holes at the lower side of the amplitude changing arm, the front end and the rear end of each amplitude changing arm far away from the inserting holes are provided with pin holes, and auxiliary arm hanging hook pins are inserted into the pin holes. The hand-pulling auxiliary arm capable of changing amplitude up and down can achieve the amplitude changing up and down, can meet increasingly various hoisting demands, and is high in structural strength, safe and reliable.
Description
Technical Field
The utility model relates to the technical field of mechanical arms of cranes, in particular to a hand-pulling auxiliary arm capable of changing amplitude up and down.
Background
At present, a straight arm type lorry-mounted crane is generally adopted as a lorry-mounted crane, and can be used for safely, quickly and atraumatically lifting accident vehicles, fault vehicles or violation vehicles on a road or a roadbed to a bearing flat plate of an obstacle clearance vehicle, quickly transporting away from the scene and recovering the smoothness of the road;
the hand auxiliary arm of the existing lorry-mounted crane is generally of a straight arm structure, the bending angle of the hand auxiliary arm is fixed, and the hand auxiliary arm is easily affected by the angle and gradually reduced in a tower shape when lifting articles;
in order to solve the problems, chinese patent publication No. CN212532081U discloses a variable-amplitude hand-pulled auxiliary arm, which comprises a fixed arm and an amplitude arm, wherein the fixed arm and the amplitude arm are connected with a telescopic arm of a crane;
but only can downwards amplitude, the amplitude direction is single, and the increasingly diverse hoisting requirements cannot be met.
Disclosure of Invention
The utility model aims to overcome the existing defects, provides the hand-pulling auxiliary arm capable of changing amplitude up and down, can realize the up and down amplitude changing, can meet increasingly various hoisting requirements, has high structural strength, is safe and reliable, and can effectively solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a hand-pulled auxiliary arm capable of up and down amplitude variation, comprising:
the front side and the rear side of one end of the fixed arm are respectively and fixedly connected with a circular arc-shaped lug plate, and amplitude-changing adjusting holes are respectively formed in the upper side and the lower side of the circular arc-shaped lug plate at equal intervals;
the jack is respectively arranged on the upper side and the lower side of one end of the amplitude changing arm, the amplitude changing shaft I is inserted into the jack on the upper side of the amplitude changing arm, the front end and the rear end of the amplitude changing shaft I respectively penetrate through amplitude changing adjusting holes corresponding to the front end and the rear end of the top of the two circular arc-shaped lug plates, the amplitude changing shaft II is inserted into the jack on the lower side of the amplitude changing arm, and the front end and the rear end of the amplitude changing shaft II respectively penetrate through amplitude changing adjusting holes corresponding to the front end and the rear end of the bottom of the two circular arc-shaped lug plates.
Further, the auxiliary arm hanger pin and the hexagonal nut are further included, a pin hole is formed in one end, far away from the jack, of the amplitude arm, the auxiliary arm hanger pin is arranged in the pin hole in an inserted mode, the hexagonal nut is connected to one end of the auxiliary arm hanger pin in a threaded mode, the operation limiting ring is arranged at the other end of the auxiliary arm hanger pin, the end portion of the auxiliary arm hanger pin can be limited, the auxiliary arm hanger pin is prevented from being excessively inserted into the pin hole and separated from the pin hole, meanwhile the auxiliary arm hanger pin is conveniently inserted and pulled out, the auxiliary arm hanger pin is connected with a lifting hook top cable and used for installing a lifting hook, the hexagonal nut is limited to the end portion of the auxiliary arm hanger pin, and the auxiliary arm hanger pin is prevented from being separated from the pin hole.
Further, the device further comprises a lifting hook ear plate, wherein the lifting hook ear plate is fixedly connected to the front side and the rear side of one end, far away from the jack, of the amplitude arm respectively, the pin hole penetrates through the lifting hook ear plate, the lifting hook ear plate is used for reinforcing the strength of the end part of the amplitude arm, and the situation that the pin hole of the end part of the amplitude arm is damaged due to overlarge stress when the lifting hook pin of the auxiliary arm is hoisted is avoided.
Further, the novel fixing device further comprises reinforcing ribs, wherein the reinforcing ribs are respectively arranged on the upper side and the lower side of one end, close to the circular arc-shaped lug plate, of the fixing arm at equal distance, the front end and the rear end of each reinforcing rib are respectively fixedly connected with the inner side of the corresponding circular arc-shaped lug plate, the fixing arm and the circular arc-shaped lug plate can be secondarily fixed by the reinforcing ribs, the strength of the circular arc-shaped lug plate is improved, and deformation caused by overlarge stress of the circular arc-shaped lug plate is avoided.
Further, the device also comprises lifting lugs, wherein at least two lifting lugs are arranged at the top of the amplitude changing arm, lifting holes are formed in the lifting lugs, when the amplitude changing arm is in amplitude changing, the amplitude changing arm is not lifted well due to overweight, the amplitude changing arm is conveniently lifted through the lifting lugs, manual work is replaced, and amplitude changing operation is convenient to realize.
Further, the device further comprises a reinforcing side plate, wherein the front side and the rear side of one end, close to the fixed arm, of the amplitude changing arm are respectively provided with the reinforcing side plate, the insertion holes penetrate through the reinforcing side plate, the reinforcing side plate is used for reinforcing one end, provided with the insertion holes, of the amplitude changing arm, and the insertion holes are prevented from being damaged due to overlarge stress.
Further, the fixing arm comprises a fixing arm pin hole and a fixing arm pin shaft, the fixing arm is provided with the fixing arm pin hole at equal distance, the fixing arm pin shaft is inserted into the fixing arm pin hole, and other fixing arms can be installed on the inner side or the outer side of the fixing arm in a gradient mode by means of the fixing arm pin hole and the fixing arm pin shaft.
Compared with the prior art, the utility model has the beneficial effects that: the hand-pulling auxiliary arm capable of changing amplitude up and down has the following advantages: the vertical amplitude can be realized, increasingly diversified hoisting demands can be met, and the structure is high in strength, safe and reliable.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
FIG. 3 is a schematic view of the horn structure of the present utility model.
In the figure: the auxiliary arm lifting hook pin is 1, the amplitude changing arm is 2, the amplitude changing shaft is 3, the fixed arm is 4, the fixed arm is 5, the pin hole is 6, the amplitude changing shaft is 7, the arc-shaped lug plate is 8, the fixed arm pin shaft is 9, the reinforcing rib is 10, the lifting hook lug plate is 11, the lifting lug is 12, the lifting lug is 13, the lifting lug is 14, and the side plate is reinforced, and the amplitude changing adjusting hole is 15.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides a technical solution: a hand-pulling auxiliary arm capable of changing amplitude up and down comprises a fixed arm 4 and an amplitude changing arm 2;
the front side and the rear side of one end of the fixed arm 4 are respectively fixedly connected with a circular arc-shaped lug plate 8, and amplitude variation regulating holes 15 are respectively formed on the upper side and the lower side of the circular arc-shaped lug plate 8 at equal intervals;
the jack 13 is respectively arranged on the upper side and the lower side of one end of the amplitude changing arm 2, the amplitude changing shaft I3 is inserted into the jack 13 on the upper side of the amplitude changing arm 2, the front end and the rear end of the amplitude changing shaft I3 respectively penetrate through amplitude changing adjusting holes 15 corresponding to the front end and the rear end of the top of the two circular arc-shaped lug plates 8, the amplitude changing shaft II 7 is inserted into the jack 13 on the lower side of the amplitude changing arm 2, and the front end and the rear end of the amplitude changing shaft II 7 respectively penetrate through amplitude changing adjusting holes 15 corresponding to the front end and the rear end of the bottom of the two circular arc-shaped lug plates 8.
Working principle: when the horn is turned downwards, only the first horn shaft 3 is pulled out, the horn arm 2 is turned downwards by taking the second horn shaft 7 as the center until the horn arm is aligned with the next horn adjusting hole 15 of the circular arc-shaped lug plate 8, and the downward horn of the horn arm 2 relative to the fixed arm 4 is completed by inserting the first horn shaft 3;
when the horn is upwardly changed in amplitude, only the horn shaft II 7 is required to be pulled out, the horn arm 2 is rotated upwardly by taking the horn shaft I3 as the center to be aligned with the next horn adjusting hole 15 of the circular arc-shaped lug plate 8, and the horn arm 2 is upwardly changed in amplitude relative to the fixed arm 4 by inserting the horn shaft II 7, so that the horn can be upwardly and downwardly changed in amplitude, and the operation is convenient and quick.
Referring to fig. 2, the auxiliary arm hanger further comprises an auxiliary arm hanger pin 1 and a hexagonal nut 6, a pin hole is formed in one end, far away from the insertion hole 13, of the amplitude arm 2, the auxiliary arm hanger pin 1 is inserted into the pin hole, one end of the auxiliary arm hanger pin 1 is connected with the hexagonal nut 6 in a threaded manner, an operation limiting ring is arranged at the other end of the auxiliary arm hanger pin 1, the end of the auxiliary arm hanger pin 1 can be limited to avoid the excessive insertion of the pin hole and the separation of the pin hole, meanwhile, the auxiliary arm hanger pin 1 is conveniently inserted and pulled out, the auxiliary arm hanger pin 1 is connected with a cable at the top of a lifting hook and used for installing the lifting hook, and the hexagonal nut 6 limits the end of the auxiliary arm hanger pin 1 to avoid the separation of the auxiliary arm hanger pin 1 from the pin hole.
Referring to fig. 1, the crane further comprises a lifting hook ear plate 11, wherein the front side and the rear side of one end, far away from the jack 13, of the luffing jib 2 are respectively fixedly connected with the lifting hook ear plate 11, the pin holes penetrate through the lifting hook ear plate 11, the lifting hook ear plate 11 is used for reinforcing the strength of the end part of the luffing jib 2, and the situation that the pin holes of the end part of the luffing jib 2 are damaged due to overlarge stress when the auxiliary jib suspension pin 1 is hoisted is avoided.
Referring to fig. 2, the fixing arm further comprises reinforcing ribs 10, wherein the reinforcing ribs 10 are respectively equidistantly arranged on the upper side and the lower side of one end, close to the circular arc-shaped lug plate 8, of the fixing arm 4, the front end and the rear end of each reinforcing rib 10 are respectively fixedly connected with the inner sides of the corresponding circular arc-shaped lug plate 8, the fixing arm 4 and the circular arc-shaped lug plate 8 can be secondarily fixed by the reinforcing ribs 10, the strength of the circular arc-shaped lug plate 8 is improved, and deformation caused by overlarge stress of the circular arc-shaped lug plate 8 is avoided.
Referring to fig. 1, the device further comprises lifting lugs 12, at least two lifting lugs 12 are arranged at the top of the luffing jib 2, lifting holes are formed in the lifting lugs 12, when luffing is performed, the luffing jib 2 is too heavy and is not lifted well, the luffing jib 2 is conveniently lifted through the lifting lugs 12, manual work is replaced, and luffing operation is conveniently realized.
Referring to fig. 3, the device further includes a reinforcing side plate 14, wherein the front side and the rear side of the end of the amplitude arm 2, which is close to the fixed arm 4, are respectively provided with the reinforcing side plate 14, the insertion holes 13 penetrate through the reinforcing side plate 14, and the reinforcing side plate 14 is used for reinforcing the end of the amplitude arm 2, which is provided with the insertion holes 13, so as to avoid damage to the insertion holes 13 due to overlarge stress.
Referring to fig. 1-2, the fixing arm further comprises a fixing arm pin hole 5 and a fixing arm pin shaft 9, the fixing arm 4 is equidistantly provided with the fixing arm pin hole 5, the fixing arm pin shaft 9 is inserted into the fixing arm pin hole 5, and other fixing arms 4 can be installed on the inner side or the outer side of the fixing arm 4 in a gradient mode by means of the fixing arm pin hole 5 and the fixing arm pin shaft 9.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A hand-pulled auxiliary arm capable of up-down amplitude variation, which is characterized by comprising:
the front side and the rear side of one end of the fixed arm (4) are respectively and fixedly connected with a circular arc-shaped lug plate (8), and amplitude variation holes (15) are respectively formed in the upper side and the lower side of the circular arc-shaped lug plate (8) at equal intervals;
the device comprises a luffing arm (2), jacks (13) are respectively formed in the upper side and the lower side of one end of the luffing arm, a luffing shaft I (3) is inserted into the jacks (13) in the upper side of the luffing arm (2), the front end and the rear end of the luffing shaft I (3) respectively penetrate through luffing adjusting holes (15) corresponding to the tops of two circular arc-shaped lug plates (8) in front and back, luffing shafts II (7) are inserted into the jacks (13) in the lower side of the luffing arm (2), and the front end and the rear end of the luffing shaft II (7) respectively penetrate through luffing adjusting holes (15) corresponding to the bottoms of the two circular arc-shaped lug plates (8) in front and back.
2. A luffing jib for a hand-operated vehicle according to claim 1, wherein: the auxiliary arm lifting hook pin (1) and the hexagonal nut (6) are further included, a pin hole is formed in one end, far away from the jack (13), of the amplitude arm (2), the auxiliary arm lifting hook pin (1) is inserted into the pin hole, and the hexagonal nut (6) is connected with the end portion of the auxiliary arm lifting hook pin (1) in a threaded mode.
3. A luffing jib according to claim 2 wherein: the device further comprises a lifting hook lug plate (11), wherein the lifting hook lug plate (11) is fixedly connected to the front side and the rear side of one end, far away from the jack (13), of the amplitude arm (2), and the pin hole penetrates through the lifting hook lug plate (11).
4. A luffing jib for a hand-operated vehicle according to claim 1, wherein: the fixing arm (4) is provided with reinforcing ribs (10) at equal distances on the upper side and the lower side of one end, close to the circular arc-shaped lug plate (8), of the fixing arm, and the front end and the rear end of the reinforcing ribs (10) are fixedly connected with the inner sides of the corresponding circular arc-shaped lug plates (8) respectively.
5. A luffing jib for a hand-operated vehicle according to claim 1, wherein: the lifting device further comprises lifting lugs (12), at least two lifting lugs (12) are arranged at the top of the amplitude changing arm (2), and lifting holes are formed in the lifting lugs (12).
6. A luffing jib for a hand-operated vehicle according to claim 1, wherein: the device further comprises a reinforcing side plate (14), wherein the front side and the rear side of one end, close to the fixed arm (4), of the amplitude arm (2) are respectively provided with the reinforcing side plate (14), and the insertion holes (13) penetrate through the reinforcing side plate (14).
7. A luffing jib for a hand-operated vehicle according to claim 1, wherein: the novel fixing arm is characterized by further comprising a fixing arm pin hole (5) and a fixing arm pin shaft (9), wherein the fixing arm pin holes (5) are formed in the fixing arm (4) at equal intervals, and the fixing arm pin shafts (9) are inserted into the fixing arm pin holes (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321216870.3U CN219792285U (en) | 2023-05-19 | 2023-05-19 | Hand-pulling auxiliary arm capable of changing amplitude up and down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321216870.3U CN219792285U (en) | 2023-05-19 | 2023-05-19 | Hand-pulling auxiliary arm capable of changing amplitude up and down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219792285U true CN219792285U (en) | 2023-10-03 |
Family
ID=88158379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321216870.3U Active CN219792285U (en) | 2023-05-19 | 2023-05-19 | Hand-pulling auxiliary arm capable of changing amplitude up and down |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219792285U (en) |
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2023
- 2023-05-19 CN CN202321216870.3U patent/CN219792285U/en active Active
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