CN220223463U

CN220223463U - Telescopic boom

Info

Publication number: CN220223463U
Application number: CN202321656318.6U
Authority: CN
Inventors: 钟海波; 黄志伟; 张鹏; 杜俊; 李祥祥; 杨书强
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-12-22
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses a telescopic boom, in particular to the technical field of booms, which comprises the following components: mount assembly and davit assembly, the mount assembly includes: the bottom end of the top plate is fixedly connected with a fixed plate, a bottom sealing plate is fixedly arranged at one end, far away from the top plate, of the fixed plate, the bottom end of the bottom plate and the bottom end of the side plate, and a large rib plate and a small rib plate which are distributed from top to bottom are fixedly arranged between the fixed plate and the two side plates; the boom assembly includes: the telescopic cylinder stretches and slides in the fixing frame assembly, and the front sealing plate is fixedly arranged at one end of the telescopic cylinder penetrating out of the fixing frame assembly; according to the utility model, the telescopic oil cylinder is utilized to push the suspension arm assembly and the lifting hook assembly to move freely in the fixing frame assembly, and the lifting point where the lifting hook assembly is positioned is moved in a hydraulic pushing mode, so that manual labor is not required, and time and labor are saved.

Description

Telescopic boom

Technical Field

The utility model relates to the technical field of suspension arms, in particular to a telescopic suspension arm.

Background

The known forklift is used as engineering machinery with increasingly wide application, and the application place is special and complex, so that the forklift has higher requirements on the configured accessories; the suspension arm is used as a common accessory and is matched with the forklift; the suspension arm is mainly used for hoisting cargoes and is widely applied to transportation scenes such as bags, timber, electric power and the like; conventional booms are known, often using a plurality of fixed suspension point positions, i.e. a plurality of hook positions are often present in a fixed form.

In the prior art, a suspension arm with a movable suspension point position exists, but the suspension point position needs to be manually adjusted by manpower, so that the prior art has limitations in practical application and operation, and the suspension efficiency is low, and therefore, the telescopic suspension arm is provided as a further improvement.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present utility model provides a telescopic boom to solve the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a telescopic boom comprising: mount assembly and davit assembly, the mount assembly includes: the two sides of the top plate and the bottom plate are fixedly connected through two side plates respectively, the bottom end of the top plate is fixedly connected with a fixed plate, the two sides of the fixed plate are fixedly connected with the two side plates, the bottom sealing plates are fixedly arranged at one end of the fixed plate far away from the top plate, the bottom end of the bottom plate and the bottom end of the side plate,

a large rib plate and a small rib plate which are distributed from top to bottom are fixedly arranged between the fixed plate and the two side plates;

the boom assembly includes: the telescopic cylinder slides in the fixing frame assembly in a telescopic way, the front sealing plate is fixedly arranged at one end of the telescopic cylinder penetrating out of the fixing frame assembly, and a limiting sliding mechanism is arranged between the fixing frame assembly and the telescopic cylinder.

Further, the one end that the bottom plate kept away from the bottom shrouding has seted up spacing spout, the bottom fixed mounting of flexible section of thick bamboo has the lug of wearing to locate spacing spout, the lifting hook assembly is installed to the lug.

Further, the limit sliding mechanism includes: the first fixed frame and the second fixed frame, first fixed frame fixed mounting keep away from the surface of preceding shrouding at the telescopic tube, second fixed frame fixed mounting is at the inner wall of mount assembly tip, just the inside of first fixed frame and second fixed frame fixed mounting respectively has first slider and second slider, first slider and second slider respectively with the inner wall of mount assembly with the surface contact of telescopic tube.

Further, the second fixing frame includes: the side part fixing frames are fixedly arranged on the inner walls of the side plates, the two bottom fixing frames are fixedly arranged on the inner walls of the bottom plates, and the limiting sliding groove is positioned between the two bottom fixing frames.

Further, the inside of mount assembly is provided with flexible hydro-cylinder, flexible hydro-cylinder's cylinder passes through the back round pin axle fixed mounting of flexible hydro-cylinder in the middle part of curb plate, flexible hydro-cylinder's piston rod passes through flexible hydro-cylinder front pin axle to be fixed in the middle part of flexible section of thick bamboo.

Further, an upper hook and a lower hook are respectively and fixedly arranged at the top and the bottom of the fixing plate.

Further, a positioning block is fixedly arranged on the outer side of the top plate, and the positioning block and the suspension arm assembly are positioned on the same horizontal line.

The utility model has the technical effects and advantages that:

1. compared with the prior art, the hydraulic lifting device has the advantages that the combination body of the suspension arm assembly and the lifting hook assembly freely moves in the stroke of the suspension arm assembly under the hydraulic pushing of the telescopic oil cylinder by arranging the suspension arm assembly, the lifting hook assembly and the telescopic oil cylinder, and because the lifting point where the lifting hook assembly is positioned moves in a hydraulic pushing mode, manual labor is not needed, and time and labor are saved; the lifting hook assembly is free of specific position limitation in movement of the lifting point position, and free in stroke; at least three lifting points are configured simultaneously, so that the lifting efficiency is improved.

2. Compared with the prior art, through setting up spacing slide mechanism, not only utilize first slider and second slider to play the lubrication action to the mount assembly and the telescopic cylinder of contact, utilize first fixed frame and second fixed frame to restrict first slider and second slider respectively moreover, consequently improve telescopic cylinder gliding stability, make overall structure safe and reliable.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic view of the structure of the fixing frame assembly of the present utility model.

FIG. 3 is a schematic cross-sectional view of a top plate according to the present utility model.

Fig. 4 is a schematic view of a limiting chute structure according to the present utility model.

Fig. 5 is a schematic view of the positioning block structure of the present utility model.

The reference numerals are:

1. a fixing frame assembly;

11. a top plate; 111. a positioning block; 12. a bottom plate; 121. limiting sliding grooves;

13. a side plate; 14. a fixing plate; 141. an upper hook; 142. a lower hook;

15. a bottom sealing plate; 16. a large rib plate; 17. a small rib plate;

2. a boom assembly;

21. a telescopic cylinder; 22. a front sealing plate; 23. lifting lugs;

3. a limit sliding mechanism;

31. a first fixed frame;

32. a second fixed frame; 321. a side fixing frame; 322. a bottom fixing frame;

33. a first slider; 34. a second slider;

4. a hook assembly;

5. a telescopic oil cylinder; 51. a rear pin shaft of the telescopic oil cylinder; 52. a front pin shaft of the telescopic oil cylinder; 53. and (5) a retainer ring.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

A telescopic boom as shown in figures 1-5, comprising: mount assembly 1 and davit assembly 2, mount assembly 1 includes: the top plate 11, the bottom plate 12 and the side plates 13, the two sides of the top plate 11 and the bottom plate 12 are respectively and fixedly connected through the two side plates 13, the bottom end of the top plate 11 is fixedly connected with the fixed plate 14, the two sides of the fixed plate 14 are fixedly connected with the two side plates 13, the bottom sealing plates 15 are fixedly arranged at one end of the fixed plate 14 away from the top plate 11, the bottom end of the bottom plate 12 and the bottom end of the side plates 13,

a large rib plate 16 and a small rib plate 17 which are distributed from top to bottom are fixedly arranged between the fixed plate 14 and the two side plates 13;

the boom assembly 2 includes: the telescopic cylinder 21 and the front sealing plate 22, the telescopic cylinder 21 stretches out and draws back in the inside of the fixed frame assembly 1, the front sealing plate 22 is fixedly arranged at one end of the telescopic cylinder 21 penetrating out of the fixed frame assembly 1, and a limiting and sliding mechanism 3 is arranged between the fixed frame assembly 1 and the telescopic cylinder 21.

Wherein, the big rib plate 16 and the small rib plate 17 are preferably triangular, which are used for reinforcing the rigidity and the torsion resistance of the whole structure;

in a preferred embodiment, as shown in fig. 1 to 5, the limit slide mechanism 3 includes: the first fixing frame 31 and the second fixing frame 32, the first fixing frame 31 is fixedly arranged on the outer surface of the telescopic cylinder 21 far away from the front sealing plate 22, the second fixing frame 32 is fixedly arranged on the inner wall of the end part of the fixing frame assembly 1, a first sliding block 33 and a second sliding block 34 are respectively fixedly arranged in the first fixing frame 31 and the second fixing frame 32, and the first sliding block 33 and the second sliding block 34 are respectively contacted with the inner wall of the fixing frame assembly 1 and the outer surface of the telescopic cylinder 21; so that the boom assembly 2 can slide smoothly in the fixed frame assembly 1;

wherein, four first fixed frames 31 are uniformly distributed on four outer surfaces of the telescopic cylinder 21, so that when the first sliding blocks 33 contact the inner wall of the fixed frame assembly 1, the sliding stability of the telescopic cylinder 21 is improved;

in a preferred embodiment, as shown in fig. 1-5, a limiting chute 121 is formed at one end of the bottom plate 12 away from the bottom sealing plate 15, a lifting lug 23 penetrating through the limiting chute 121 is fixedly arranged at the bottom of the telescopic cylinder 21, and a lifting hook assembly 4 is arranged on the lifting lug 23;

the second fixing frame 32 includes: the side fixing frames 321 and the bottom fixing frames 322, the side fixing frames 321 are fixedly arranged on the inner wall of the side plate 13, the two bottom fixing frames 322 are fixedly arranged on the inner wall of the bottom plate 12, and the limiting chute 121 is positioned between the two bottom fixing frames 322;

the inside of the fixed frame assembly 1 is provided with a telescopic oil cylinder 5, a cylinder barrel of the telescopic oil cylinder 5 is fixedly arranged in the middle of the side plate 13 through a telescopic oil cylinder rear pin shaft 51, and a piston rod of the telescopic oil cylinder 5 is fixed in the middle of the telescopic cylinder 21 through a telescopic oil cylinder front pin shaft 52;

when the telescopic cylinder 21 in the suspension arm assembly 2 stretches and slides in the fixed frame assembly 1, the lifting lug 23 on the telescopic cylinder 21 can slide in the limiting chute 121 and is limited by the limiting chute 121, so that the deviation is avoided;

wherein, square holes for welding lifting lugs 23 are formed at the bottom of the telescopic cylinder 21; preferably, at least three lifting lugs 23 are arranged, so that the lifting efficiency is improved;

the back pin shaft 51 of the telescopic oil cylinder and the front pin shaft 52 of the telescopic oil cylinder are fixed with corresponding parts by using the check rings 53, so that left and right movement of the telescopic oil cylinder is prevented;

the combined body of the suspension arm assembly 2 and the suspension hook assembly 4 realizes free travel movement under the hydraulic pushing of the telescopic oil cylinder 4, so that a user can conveniently use the suspension hook assembly 4;

in a preferred embodiment, as shown in fig. 1 to 5, upper hooks 141 and lower hooks 142 are fixedly installed at the top and bottom of the fixing plate 14, respectively;

wherein, the fixing plate 14 is provided with an upper hook 141 and a lower hook 142 through preset threaded holes;

the upper hook 141 and the lower hook 142 are used in cooperation, so that the whole telescopic boom is hung on a fork frame of a forklift, and lifting and descending of the whole telescopic boom are realized.

In a preferred embodiment, as shown in fig. 1-5, a positioning block 111 is fixedly installed on the outer side of the top plate 11, and the positioning block 111 and the boom assembly 2 are positioned on the same horizontal line;

the positioning block 111 is used for preventing the whole telescopic boom from accidentally sliding left and right after being hung on the fork frame, and plays a role in eliminating potential safety hazards.

The working principle of the utility model is as follows: when in use, the fixing plate 14 on the fixing frame assembly 1 is hung on the fork frame of the forklift through the upper hook 141 and the lower hook 142, namely the whole telescopic boom is hung on the fork frame of the forklift;

subsequently, the combination of the boom assembly 2 and the hook assembly 4 in the fixed frame assembly 1 is provided by the hook assembly 4 under the hydraulic pushing of the telescopic cylinder 4.

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

1. A telescopic boom comprising: mount assembly (1) and davit assembly (2), its characterized in that: the fixing frame assembly (1) comprises: the utility model comprises a top plate (11), a bottom plate (12) and side plates (13), wherein the two sides of the top plate (11) and the bottom plate (12) are respectively and fixedly connected through the two side plates (13), a fixed plate (14) is fixedly connected and arranged at the bottom end of the top plate (11), the two sides of the fixed plate (14) are fixedly connected with the two side plates (13), a bottom sealing plate (15) is fixedly arranged at one end of the fixed plate (14) far away from the top plate (11), the bottom end of the bottom plate (12) and the bottom end of the side plate (13),

a large rib plate (16) and a small rib plate (17) which are distributed from top to bottom are fixedly arranged between the fixed plate (14) and the two side plates (13);

the boom assembly (2) comprises: the telescopic cylinder (21) and the front sealing plate (22), the telescopic cylinder (21) stretches out and draws back in the inside of mount assembly (1), front sealing plate (22) fixed mounting wears to establish out the one end of mount assembly (1) at telescopic cylinder (21), be provided with spacing slide mechanism (3) between mount assembly (1) and telescopic cylinder (21).

2. A telescopic boom according to claim 1, characterized in that: the bottom plate (12) is kept away from one end of bottom shrouding (15) and has been seted up spacing spout (121), the bottom fixed mounting of flexible section of thick bamboo (21) has lug (23) of wearing to locate spacing spout (121), lifting hook assembly (4) are installed to lug (23).

3. A telescopic boom according to claim 1, characterized in that: the limit sliding mechanism (3) comprises: first fixed frame (31) and second fixed frame (32), first fixed frame (31) fixed mounting keep away from the surface of preceding shrouding (22) at telescopic tube (21), second fixed frame (32) fixed mounting is at the inner wall of mount assembly (1) tip, just the inside of first fixed frame (31) and second fixed frame (32) fixed mounting has first slider (33) and second slider (34) respectively, first slider (33) and second slider (34) respectively with the inner wall of mount assembly (1) with the surface contact of telescopic tube (21).

4. A telescopic boom according to claim 2 or 3, characterized in that: the second fixing frame (32) includes: the side fixing frames (321) and the bottom fixing frames (322), the side fixing frames (321) are fixedly arranged on the inner walls of the side plates (13), the two bottom fixing frames (322) are fixedly arranged on the inner walls of the bottom plates (12), and the limiting sliding grooves (121) are arranged between the two bottom fixing frames (322).

5. A telescopic boom according to claim 1, characterized in that: the telescopic cylinder (5) is arranged in the fixing frame assembly (1), a cylinder barrel of the telescopic cylinder (5) is fixedly arranged in the middle of the side plate (13) through a telescopic cylinder rear pin shaft (51), and a piston rod of the telescopic cylinder (5) is fixed in the middle of the telescopic cylinder (21) through a telescopic cylinder front pin shaft (52).

6. A telescopic boom according to claim 1, characterized in that: the top and the bottom of the fixed plate (14) are respectively fixedly provided with an upper hook (141) and a lower hook (142).

7. A telescopic boom according to claim 1, characterized in that: the outer side of the top plate (11) is fixedly provided with a positioning block (111), and the positioning block (111) and the suspension arm assembly (2) are positioned on the same horizontal line.