CN220300298U - Lifting telescopic arm structure - Google Patents
Lifting telescopic arm structure Download PDFInfo
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- CN220300298U CN220300298U CN202320114378.9U CN202320114378U CN220300298U CN 220300298 U CN220300298 U CN 220300298U CN 202320114378 U CN202320114378 U CN 202320114378U CN 220300298 U CN220300298 U CN 220300298U
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- telescopic arm
- fixed pulley
- vertical direction
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- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of lifting mechanisms, in particular to a lifting type telescopic arm structure, which comprises a supporting seat, wherein a first-stage telescopic arm is arranged on the supporting seat, a second-stage telescopic arm is arranged on the inner side of the first-stage telescopic arm in a sliding manner along the vertical direction, and a third-stage telescopic arm is arranged on the inner side of the second-stage telescopic arm in a sliding manner along the vertical direction; the three-stage telescopic arm lifting mechanism is characterized in that an active driving assembly and a passive driving assembly are arranged among the primary telescopic arm, the secondary telescopic arm and the tertiary telescopic arm, the active driving assembly drives the tertiary telescopic arm to lift along the vertical direction, and the passive driving assembly controls the secondary telescopic arm to lift along with the tertiary telescopic arm. During operation, lifting action can be realized, and the structure is stable.
Description
Technical Field
The utility model relates to the technical field of lifting mechanisms, in particular to a lifting type telescopic arm structure.
Background
In the white spirit market, the grapple can be used for grabbing vinasse in a vinasse workshop, and the telescopic arm can be used for controlling the grab to lift in the vertical direction in the process of grabbing by using the grab. The telescopic arm in the prior art is formed by welding steel plates, and then lifting and lowering of the telescopic arm are controlled by an oil cylinder. However, such a telescopic arm made of a steel plate is relatively thin in thickness during manufacturing, and is easily bent during operation.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a lifting telescopic arm structure which can realize lifting action and is stable.
(II) technical scheme
In order to achieve the above purpose, the embodiment of the application provides a lifting telescopic arm structure, which comprises a supporting seat, wherein a primary telescopic arm is arranged on the supporting seat, a secondary telescopic arm is arranged on the inner side of the primary telescopic arm in a sliding manner along the vertical direction, and a tertiary telescopic arm is arranged on the inner side of the secondary telescopic arm in a sliding manner along the vertical direction; the three-stage telescopic arm lifting mechanism is characterized in that an active driving assembly and a passive driving assembly are arranged among the primary telescopic arm, the secondary telescopic arm and the tertiary telescopic arm, the active driving assembly drives the tertiary telescopic arm to lift along the vertical direction, and the passive driving assembly controls the secondary telescopic arm to lift along with the tertiary telescopic arm.
Preferably, the top of the primary telescopic arm is provided with a horizontal top mounting frame, and the bottom of the primary telescopic arm is provided with a horizontal bottom mounting frame; the bottom of the three-stage telescopic arm is fixedly provided with a bottom supporting plate; the driving assembly is provided with two groups at intervals, each driving assembly comprises a first steel wire rope and a first fixed pulley fixed on the upper side of the top mounting frame, and a second fixed pulley and a third fixed pulley are fixed on the upper side of the bottom supporting plate at intervals; the top mounting frame is hung with a first adjusting component, one end of the first steel wire rope is a driving end, and the other end of the first steel wire rope sequentially bypasses the upper side of the first fixed pulley, the lower side of the second fixed pulley and the lower side of the third fixed pulley and then is connected with the first adjusting component; the first adjusting component and the third fixed pulley are located on one side of the three-stage telescopic arm in the vertical direction, and the first fixed pulley and the second fixed pulley are located on the other side of the three-stage telescopic arm in the vertical direction.
Preferably, the first top mounting plate and the second top mounting plate are arranged on the upper side of the top mounting frame in parallel at intervals, the first top mounting plate and the second top mounting plate are located on two sides of the three-stage telescopic arm, the first fixed pulley is mounted on the first top mounting plate, and the first adjusting component is mounted on the second top mounting plate.
Preferably, the second top mounting plate is provided with a first adjusting hole, the first adjusting assembly comprises a first adjusting screw rod, the first adjusting screw rod penetrates through the first adjusting hole, the lower end of the first adjusting screw rod is connected with the first steel wire rope, the first adjusting screw rod is connected with a first locking nut and a second locking nut in a threaded manner, and the first locking nut and the second locking nut are located on the upper side and the lower side of the second top mounting plate.
Preferably, the top of the secondary telescopic arm is provided with an upper supporting frame, the middle part of the secondary telescopic arm is provided with two middle supporting frames at intervals, and the bottom of the secondary telescopic arm is provided with a lower supporting frame; limiting holes are formed in the upper supporting frame, the middle supporting frame and the lower supporting frame respectively, the upper supporting frame, the middle supporting frame and the lower supporting frame are located between the first fixed pulley and the second fixed pulley, and the first steel wire rope penetrates through the limiting holes.
Preferably, the passive driving component is respectively provided with a group at two vertical sides of the secondary telescopic arm; the passive driving assembly comprises a second steel wire rope and a second adjusting assembly arranged on the second top mounting plate, a third adjusting piece is arranged at the upper end of the three-stage telescopic arm, and a fourth fixed pulley is arranged on the lower supporting frame; one end of the second steel wire rope is connected with the second adjusting component, and the other end of the second steel wire rope bypasses the fourth fixed pulley and is connected with the third adjusting piece; the upper supporting frame is characterized in that a fifth fixed pulley is arranged on the upper side of the upper supporting frame, a fourth adjusting piece is arranged on the bottom mounting frame, a fifth adjusting piece is arranged at the bottom of the three-stage telescopic arm, a third steel wire rope is connected between the fourth adjusting piece and the fifth adjusting piece, and the third steel wire rope bypasses the fifth fixed pulley.
Preferably, a first limit groove is formed in one side, close to the second-stage telescopic arm, of the first-stage telescopic arm along the vertical direction, a first sliding plate is arranged on the outer side of the second-stage telescopic arm along the vertical direction, the first sliding plate is located in the first limit groove, and a first guide assembly for supporting the first sliding plate is arranged in the first limit groove; the second limiting groove is formed in one side, close to the third-stage telescopic arm, of the second-stage telescopic arm in the vertical direction, the second sliding plate is arranged on the outer side of the third-stage telescopic arm in the vertical direction and is located in the second limiting groove, and the second guiding assembly for supporting the second sliding plate is arranged in the second limiting groove.
Preferably, the first guide assembly and the second guide assembly have the same structure, and a plurality of groups are arranged at intervals along the vertical direction; the first guide assembly and the second guide assembly comprise limiting blocks fixed on one side wall of the first limiting groove or one side wall of the second limiting groove; a first supporting shaft is arranged at the bottom of the first limiting groove or the second limiting groove, limiting wheels are rotatably arranged on the first supporting shaft, and the limiting wheels and the limiting blocks are respectively abutted against two sides of the first sliding plate or the second sliding plate; the bottom of the first limit groove or the second limit groove is provided with a mounting seat, the mounting seat is provided with a second support shaft, and the second support shaft is perpendicular to the first support shaft and the length direction of the first limit groove or the second limit groove; the second support shaft is rotatably provided with an abutting roller, and the abutting roller abuts against the side edge of the secondary telescopic arm or the tertiary telescopic arm.
(III) beneficial effects
The utility model provides a lifting type telescopic arm structure, which is characterized in that an active driving component, a passive driving component and a first guiding component and a second guiding component are arranged among a primary telescopic arm, a secondary telescopic arm and a tertiary telescopic arm, when the lifting type telescopic arm structure works, the secondary telescopic arm and the tertiary telescopic arm can synchronously lift, so that the working speed of the telescopic arm during lifting is greatly improved, meanwhile, during the telescopic process, the primary telescopic arm, the secondary telescopic arm and the tertiary telescopic arm can be prevented from relatively shaking along the horizontal direction due to the arrangement of the first guiding component and the second guiding component during the working, the secondary telescopic arm and the tertiary telescopic arm are ensured to only move along the vertical direction, the vertical lifting stability is further improved, and meanwhile, the phenomenon that the telescopic arm bends during the lifting process is avoided to a certain extent.
Drawings
FIG. 1 is a schematic view of a lifting telescopic arm structure according to the present utility model;
FIG. 2 is a schematic view of a protruding active driving component in a lifting telescopic arm structure according to the present utility model;
FIG. 3 is a schematic view of a lifting telescopic arm structure according to the present utility model with a first adjusting component protruding therefrom;
FIG. 4 is a schematic view of a portion of a lifting telescopic arm structure of the present utility model protruding from the upper end of a passive driving assembly;
FIG. 5 is a schematic view of a portion of a lifting telescopic arm structure of the present utility model protruding from the lower end of a passive driving assembly;
FIG. 6 is a cross-sectional view of a lifting telescoping arm structure of the present utility model showing the first and second guide assemblies in place;
fig. 7 is a schematic view of a protruding first guide assembly in a lifting telescopic arm structure according to the present utility model.
The reference numerals in the drawings:
100. a support base; 200. a first-stage telescopic arm; 210. a top mounting frame; 211. a first top mounting plate; 212. a second top mounting plate; 220. a bottom mounting frame; 230. a first limit groove; 240. a first guide assembly; 241. a limiting block; 242. a first support shaft; 243. a limiting wheel; 244. a mounting base; 245. a second support shaft; 246. a contact roller; 300. a second-stage telescopic arm; 310. an upper support frame; 320. a middle support frame; 330. a lower support frame; 331. a limiting hole; 340. a first slide plate; 350. the second limit groove; 360. a second guide assembly; 400. three-stage telescopic arms; 410. a bottom support plate; 420. a second slide plate; 500. an active drive assembly; 510. a first wire rope; 520. a first fixed pulley; 530. a second fixed pulley; 540. a third fixed pulley; 550. a first adjustment assembly; 551. a first adjusting screw; 552. a first lock nut; 553. a second lock nut; 600. a passive drive assembly; 610. a second wire rope; 620. a second adjustment assembly; 630. a third adjustment member; 640. a fourth fixed pulley; 650. a fifth fixed pulley; 660. a fourth adjustment member; 670. a fifth adjusting member; 680. and a third wire rope.
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.
Examples
The utility model provides a lifting telescopic arm structure, which is shown in fig. 1-7, and comprises a supporting seat 100, wherein a primary telescopic arm 200 is arranged on the supporting seat 100, a secondary telescopic arm 300 is arranged on the inner side of the primary telescopic arm 200 in a sliding manner along the vertical direction, and a tertiary telescopic arm 400 is arranged on the inner side of the secondary telescopic arm 300 in a sliding manner along the vertical direction.
An active driving assembly 500 and a passive driving assembly 600 are arranged among the primary telescopic arm 200, the secondary telescopic arm 300 and the tertiary telescopic arm 400, the active driving assembly 500 drives the tertiary telescopic arm 400 to lift along the vertical direction, and the passive driving assembly 600 controls the secondary telescopic arm 300 to lift along with the tertiary telescopic arm 400.
The top of the primary telescopic arm 200 is provided with a horizontal top mounting frame 210, and the bottom is provided with a horizontal bottom mounting frame 220; a bottom support plate 410 is fixed to the bottom of the three-stage telescoping arm 400.
The driving assembly 500 is provided with two groups at intervals, specifically including a first steel wire rope 510, a first fixed pulley 520 fixed on the upper side of the top mounting frame 210, and a second fixed pulley 530 and a third fixed pulley 540 fixed on the upper side of the bottom support plate 410 at intervals. The first adjusting component 550 is hoisted on the top mounting frame 210, one end of the first steel wire rope 510 is a driving end, and the other end sequentially bypasses the upper side of the first fixed pulley 520, the lower side of the second fixed pulley 530 and the lower side of the third fixed pulley 540 and then is connected with the first adjusting component 550.
The first adjusting assembly 550 and the third fixed pulley 540 are located at one side of the three-stage telescopic arm 400 in the vertical direction, and the first fixed pulley 520 and the second fixed pulley 530 are located at the other side of the three-stage telescopic arm in the vertical direction.
In operation, the driving end of the first wire rope 510 is controlled by a hoist or the like, and when the first wire rope 510 is pulled, the rope portion of the first wire rope 510 between the first top pulley, the second fixed pulley 530, the third fixed pulley 540 and the first adjusting assembly 550 is shortened, at this time, the three-stage telescopic arm 400 is controlled to rise, and when the wire rope is loosened, the three-stage telescopic arm 400 is controlled to fall.
The top mounting frame 210 is provided with a first top mounting plate 211 and a second top mounting plate 212 at an upper side interval in parallel, the first top mounting plate 211 and the second top mounting plate 212 are positioned at two sides of the tertiary telescopic arm 400, the first fixed pulley 520 is mounted on the first top mounting plate 211, and the first adjusting assembly 550 is mounted on the second top mounting plate 212.
The second top mounting plate 212 is provided with a first adjusting hole, the first adjusting assembly 550 comprises a first adjusting screw 551, the first adjusting screw 551 penetrates through the first adjusting hole, the lower end of the first adjusting screw 551 is connected with a first steel wire rope 510, the first adjusting screw 551 is connected with a first locking nut 552 and a second locking nut 553 in a threaded mode, and the first locking nut 552 and the second locking nut 553 are located on the upper side and the lower side of the second top mounting plate 212.
The top of the secondary telescopic arm 300 is provided with an upper supporting frame 310, the middle part is provided with two middle supporting frames 320 at intervals, and the bottom is provided with a lower supporting frame 330; go up braced frame 310, well braced frame 320 and lower braced frame 330 on having seted up spacing hole 331 respectively, go up braced frame 310, well braced frame 320 and lower braced frame 330 are located between first fixed pulley 520, the second fixed pulley 530, and first wire rope 510 passes spacing hole 331, through spacing hole 331 that sets up, can play spacing effect to second grade telescopic arm 300 to a certain extent, avoid accident such as unexpected buckling.
The passive driving assembly 600 is provided with a group on two vertical sides of the secondary telescopic arm 300 respectively; the passive driving assembly 600 comprises a second steel wire rope 610, a second adjusting assembly 620 arranged on the second top mounting plate 212, a third adjusting piece 630 arranged at the upper end of the three-stage telescopic arm 400, and a fourth fixed pulley 640 arranged on the lower supporting frame 330; one end of the second wire rope 610 is connected to the second adjusting member 620, and the other end passes around the fourth fixed sheave 640 and is connected to the third adjusting member 630.
The upper supporting frame 310 is provided with a fifth fixed pulley 650 at an upper side thereof, the bottom mounting frame 220 is provided with a fourth adjusting member 660, the bottom of the three-stage telescopic arm 400 is provided with a fifth adjusting member 670, a third wire rope 680 is connected between the fourth adjusting member 660 and the fifth adjusting member 670, and the third wire rope 680 bypasses the fifth fixed pulley 650.
When the three-stage telescopic arm 400 moves upwards, the third adjusting piece 630 is driven to move upwards, the second steel wire rope 610 moves upwards synchronously, and the fourth fixed pulley 640 is driven to move upwards, so that the two-stage telescopic arm 300 is controlled to ascend. As tertiary telescopic arm 400 descends, fourth crown block 640 descends in synchronization. Meanwhile, the fifth adjusting member 670 descends along with the three-stage telescopic arm 400, and at this time, the fifth adjusting member 670 drives the third wire rope 680 to descend, and simultaneously, the fifth fixed pulley 650 is driven to move downward. In this process, the second wire rope 610 and the fourth fixed pulley 640 support the secondary telescopic arm 300 from the lower side, and the third wire rope 680 and the fifth fixed pulley 650 apply force to the earphone telescopic arm from the upper end, so that the secondary telescopic arm 300 can be lifted and lowered synchronously with the tertiary telescopic arm 400.
The second adjusting member, the third adjusting member 630, the fourth adjusting member 660 and the fifth adjusting member 670 have the same structure as the first adjusting member, and are not described herein.
The first limiting groove 230 is formed in one side, close to the second-stage telescopic arm 300, of the first-stage telescopic arm 200 in the vertical direction, the first sliding plate 340 is arranged in the outer side, close to the second-stage telescopic arm 300, of the second-stage telescopic arm 300 in the vertical direction, the first sliding plate 340 is located in the first limiting groove 230, and the first guiding assembly 240 for supporting the first sliding plate 340 is arranged in the first limiting groove 230.
The second limiting groove 350 is formed in one side, close to the third-stage telescopic arm 400, of the second-stage telescopic arm 300 in the vertical direction, the second sliding plate 420 is arranged in the outer side, close to the third-stage telescopic arm 400, of the third-stage telescopic arm 400 in the vertical direction, the second sliding plate 420 is located in the second limiting groove 350, and the second guiding assembly 360 for supporting the second sliding plate 420 is arranged in the second limiting groove 350.
The first guide assembly 240 and the second guide assembly 360 have the same structure, and are provided with a plurality of groups at intervals in the vertical direction.
The first guide assembly 240 and the second guide assembly 360 include a stopper 241 fixed to one side wall of the first limiting groove 230 or the second limiting groove 350; the bottom of the first limit groove 230 or the second limit groove 350 is provided with a first support shaft 242, the first support shaft 242 is rotatably provided with a limit wheel 243, and the limit wheel 243 and the limit block 241 are respectively abutted against two sides of the first slide plate 340 or the second slide plate 420. The upper and lower sides of the first or second sliding plate 340 or 420 are supported and limited by the limiting wheels 243 and the limiting blocks 241.
The bottom of the first limiting groove 230 or the second limiting groove 350 is provided with a mounting seat 244, the mounting seat 244 is provided with a second supporting shaft 245, and the second supporting shaft 245 is perpendicular to the first supporting shaft 242 and perpendicular to the length direction of the first limiting groove 230 or the second limiting groove 350. The second support shaft 245 is rotatably provided with an abutment roller 246, and the abutment roller 246 abuts against the side edge of the secondary telescopic arm 300 or the tertiary telescopic arm 400. Through the tight roller, the limiting wheel 243 and the limiting block 241 that support that set up for the second grade telescopic boom 300, tertiary telescopic boom 400 are spacing in the horizontal direction, and in the lift process, the second grade telescopic boom 300, tertiary telescopic boom 400 only can follow vertical direction and remove. Meanwhile, through the limiting, a certain limiting protection effect can be achieved on the secondary telescopic arm 300 and the tertiary telescopic arm 400, and bending is not easy to occur in the using process.
In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "rear," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or elements to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (7)
1. A lifting telescopic arm structure which is characterized in that: the telescopic support comprises a support seat (100), wherein a primary telescopic arm (200) is arranged on the support seat (100), a secondary telescopic arm (300) is arranged on the inner side of the primary telescopic arm (200) in a sliding manner along the vertical direction, and a tertiary telescopic arm (400) is arranged on the inner side of the secondary telescopic arm (300) in a sliding manner along the vertical direction;
an active driving component (500) and a passive driving component (600) are arranged among the primary telescopic arm (200), the secondary telescopic arm (300) and the tertiary telescopic arm (400), the active driving component (500) drives the tertiary telescopic arm (400) to lift along the vertical direction,
the passive driving assembly (600) controls the secondary telescopic arm (300) to passively lift along with the tertiary telescopic arm (400);
a first limit groove (230) is formed in one side, close to the second-stage telescopic arm (300), of the first-stage telescopic arm (200) along the vertical direction, a first sliding plate (340) is arranged on the outer side of the second-stage telescopic arm (300) along the vertical direction, and the first sliding plate (340) is located in the first limit groove (230);
a first guide assembly (240) for supporting the first sliding plate (340) is arranged in the first limit groove (230);
second spacing groove (350) have been seted up along vertical direction to one side that second grade flexible arm (300) are close to tertiary flexible arm (400), the outside of tertiary flexible arm (400) is provided with second slide (420) along vertical direction, second slide (420) are located in second spacing groove (350), be provided with in second spacing groove (350) right second direction subassembly (360) that second slide (420) supported.
2. A lifting telescopic arm structure according to claim 1, wherein: the top of the primary telescopic arm (200) is provided with a horizontal top mounting frame (210), and the bottom of the primary telescopic arm is provided with a horizontal bottom mounting frame (220); the bottom of the three-stage telescopic arm (400) is fixedly provided with a bottom supporting plate (410);
the driving assembly (500) is provided with two groups at intervals, each group of driving assembly comprises a first steel wire rope (510) and a first fixed pulley (520) fixed on the upper side of the top mounting frame (210), and a second fixed pulley (530) and a third fixed pulley (540) are fixed on the upper side of the bottom supporting plate (410) at intervals;
a first adjusting component (550) is hoisted on the top mounting frame (210), one end of the first steel wire rope (510) is a driving end, and the other end sequentially bypasses the upper side of the first fixed pulley (520), the lower side of the second fixed pulley (530) and the lower side of the third fixed pulley (540) and is connected with the first adjusting component (550);
the first adjusting component (550) and the third fixed pulley (540) are located on one side of the three-stage telescopic arm (400) in the vertical direction, and the first fixed pulley (520) and the second fixed pulley (530) are located on the other side of the three-stage telescopic arm (400) in the vertical direction.
3. A lifting telescopic arm structure according to claim 2, wherein: the top mounting frame (210) upper side interval parallel arrangement has first top mounting panel (211) and second top mounting panel (212), first top mounting panel (211) and second top mounting panel (212) are located tertiary flexible arm (400) both sides, first fixed pulley (520) install in on first top mounting panel (211), first regulation subassembly (550) install in on second top mounting panel (212).
4. A lifting telescopic arm structure according to claim 3, wherein:
first regulation hole has been seted up on second top mounting panel (212), first adjusting part (550) are including first adjusting screw (551), first adjusting screw (551) are passed first regulation hole, the lower extreme of first adjusting screw (551) is connected with first wire rope (510), threaded connection has first locking nut (552) and second locking nut (553) on first adjusting screw (551), first locking nut (552) and second locking nut (553) are located the upper and lower both sides of second top mounting panel (212).
5. The lifting telescopic arm structure of claim 4, wherein: the top of the secondary telescopic arm (300) is provided with an upper supporting frame (310), the middle part of the secondary telescopic arm is provided with two middle supporting frames (320) at intervals, and the bottom of the secondary telescopic arm is provided with a lower supporting frame (330); limiting holes (331) are respectively formed in the upper supporting frame (310), the middle supporting frame (320) and the lower supporting frame (330), the upper supporting frame (310), the middle supporting frame (320) and the lower supporting frame (330) are located between the first fixed pulleys (520) and the second fixed pulleys (530), and the first steel wire rope (510) penetrates through the limiting holes (331).
6. The lifting telescopic arm structure of claim 5, wherein: the passive driving assembly (600) is respectively provided with a group at the vertical two sides of the secondary telescopic arm (300);
the passive driving assembly (600) comprises a second steel wire rope (610) and a second adjusting assembly (620) arranged on the second top mounting plate (212), a third adjusting piece (630) is arranged at the upper end of the three-stage telescopic arm (400), and a fourth fixed pulley (640) is arranged on the lower supporting frame (330); one end of the second steel wire rope (610) is connected with the second adjusting component (620), and the other end of the second steel wire rope bypasses the fourth fixed pulley (640) and is connected with the third adjusting component (630);
the upper supporting frame (310) upside is provided with fifth fixed pulley (650), be provided with fourth regulating part (660) on bottom installing frame (220), fifth regulating part (670) are installed to the bottom of tertiary telescopic boom (400), be connected with third wire rope (680) between fourth regulating part (660) and fifth regulating part (670), third wire rope (680) are walked around fifth fixed pulley (650).
7. A lifting telescopic arm structure according to claim 1, wherein: the first guide assembly (240) and the second guide assembly (360) have the same structure, and a plurality of groups are arranged at intervals along the vertical direction;
the first guide assembly (240) and the second guide assembly (360) comprise limiting blocks (241) fixed on one side wall of the first limiting groove (230) or the second limiting groove (350);
a first supporting shaft (242) is arranged at the bottom of the first limit groove (230) or the second limit groove (350), a limit wheel (243) is rotatably arranged on the first supporting shaft (242), and the limit wheel (243) and the limit block (241) are respectively abutted against two sides of the first sliding plate (340) or the second sliding plate (420);
the bottom of the first limit groove (230) or the second limit groove (350) is provided with a mounting seat (244), the mounting seat (244) is provided with a second support shaft (245), and the second support shaft (245) is perpendicular to the first support shaft (242) and the length direction of the first limit groove (230) or the second limit groove (350);
an abutting roller (246) is rotatably arranged on the second support shaft (245), and the abutting roller (246) abuts against the side edge of the second-stage telescopic arm (300) or the third-stage telescopic arm (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320114378.9U CN220300298U (en) | 2023-01-17 | 2023-01-17 | Lifting telescopic arm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320114378.9U CN220300298U (en) | 2023-01-17 | 2023-01-17 | Lifting telescopic arm structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220300298U true CN220300298U (en) | 2024-01-05 |
Family
ID=89347418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320114378.9U Active CN220300298U (en) | 2023-01-17 | 2023-01-17 | Lifting telescopic arm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220300298U (en) |
-
2023
- 2023-01-17 CN CN202320114378.9U patent/CN220300298U/en active Active
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