Suspension arm of truck-mounted crane

Abstract

The utility model discloses a lazy arm of a truck-mounted crane. The lazy arm comprises a lazy arm body, an adjustable anti-collision protection assembly and a pair of ringing early warning mechanisms, the adjustable anti-collision protection assembly comprises an assembling sleeve shell, fixing bases are fixedly assembled on the two sides of the assembling sleeve shell, a pair of adjusting sliding blocks are slidably assembled in the fixing bases, anti-collision storage bases are hinged to the sides, away from the assembling sleeve shell, of the adjusting sliding blocks, and anti-collision air cushions are fixedly assembled in the anti-collision storage bases. The pair of buzzing early warning mechanisms are fixedly assembled above the anti-collision storage seat, each buzzing early warning mechanism comprises a buzzing shell, an air guide pipe is communicated between the buzzing shell and the anti-collision air cushion, and buzzing collision balls are distributed in the buzzing shells. According to the suspension arm of the truck-mounted crane disclosed by the utility model, the adjustable anti-collision protection assembly is arranged, so that the anti-collision protection effect on the suspension arm of the truck-mounted crane can be achieved, the risk that the suspension arm of the truck-mounted crane is damaged due to collision is reduced, and the operation stability and safety of the suspension arm of the truck-mounted crane are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of a truck-mounted crane arm, and in particular relates to a truck-mounted crane arm. Background Art

[0002] A truck crane is a device that uses a hydraulic lifting and telescopic system to achieve the lifting, rotation and hoisting of goods. It is a transport vehicle composed of a truck crane and a chassis. Currently, the most common truck cranes are mainly composed of a boom, a turntable, a frame and outriggers.

[0003] During use, the mechanical movement of the truck crane is mainly achieved through the actions of the boom's amplitude change, extension, rotation, winch and other mechanisms. Most of the truck crane arms in the prior art do not have anti-collision protection functions, and are easily subject to collisions due to environmental and operator factors during use. When the truck crane arm collides, it will not only cause damage to the truck crane arm, but also affect the stability of the truck crane arm in hoisting goods, resulting in greater safety hazards during the use of the truck crane arm.

[0004] Therefore, in response to the above-mentioned technical problems, it is necessary to provide a kind of vehicle-mounted crane boom.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide a boom of a truck mounted crane, which can play an anti-collision protection function and improve the use safety of the boom of the truck mounted crane.

[0007] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a vehicle-mounted crane boom, including: a boom body, an adjustable anti-collision protection component, and a pair of sound warning mechanisms.

[0008] The adjustable anti-collision protection component is sleeved on the outside of the boom body, and the adjustable anti-collision protection component includes an assembly shell, and the assembly shell is fixedly assembled on the outside of the boom body. Both sides of the assembly shell are fixedly assembled with fixed seats, and a pair of adjustment sliders are slidably assembled in the fixed seats. The side of the pair of adjustment sliders facing away from the assembly shell is hinged with an anti-collision storage seat, and an anti-collision air cushion is fixedly assembled in the anti-collision storage seat.

[0009] A pair of the beeping warning mechanisms are fixedly mounted above the anti-collision storage seat, and the beeping warning mechanism includes a beeping shell, which is fixedly mounted above the anti-collision storage seat. An air duct is connected between the beeping shell and the anti-collision air cushion, and a buzzing collision ball is arranged in the beeping shell.

[0010] In one or more embodiments of the utility model, a movable threaded rod is rotatably connected in the fixed seat, and the movable threaded rod passes through a pair of adjustment sliders. The movable threaded rod plays the role of assembly limit and sliding guide for the pair of adjustment sliders. One end of the movable threaded rod located outside the fixed seat is fixedly connected to a rotating end head. The movable threaded rod is rotationally driven by controlling the rotation of the rotating end head.

[0011] In one or more embodiments of the utility model, the pair of adjusting sliders are both provided with internal threads in the same direction, and both ends of the movable threaded rod are provided with external threads in opposite directions, and the movable threaded rod is threadedly connected with the adjusting sliders. This facilitates the pair of adjusting sliders to move in opposite directions as the movable threaded rod rotates under the action of the internal and external threads, thereby facilitating the movement control of the supporting connecting rod.

[0012] In one or more embodiments of the utility model, a pair of the adjusting sliders are fixedly connected to a fixed connection seat on one side outside the fixed seat. The fixed connection seat serves as an assembly limit for the support link, so that the support link can move synchronously with the movement of the adjusting slider under the action of the fixed connection seat. A support link is hinged in the fixed connection seat. The support link serves to connect the fixed connection seat and the fixed support. The anti-collision fixed plate is controlled to move by controlling the movement of the support link, so that the anti-collision protection distance of the anti-collision air cushion can be adjusted according to actual conditions.

[0013] In one or more embodiments of the utility model, the end of the support link away from the fixed connection seat is hinged with a fixed support. The fixed support serves to connect the support link and the anti-collision fixing plate. The side of the fixed support away from the support link is fixedly connected with the anti-collision fixing plate, and the anti-collision fixing plate is fixedly connected to the bottom of the anti-collision storage seat. The anti-collision fixing plate serves to assemble and fix the anti-collision storage seat.

[0014] In one or more embodiments of the utility model, the anti-collision air cushion is fixedly connected with multiple groups of evenly distributed support springs. The anti-collision air cushion is supported and reset by the contraction and reset of the multiple groups of support springs, thereby protecting the boom body from collision through the contraction and reset of the anti-collision air cushion.

[0015] In one or more embodiments of the utility model, the end of the air guide tube located in the anti-collision air cushion is set in a conical shape, and the diameter of the end of the air guide tube located in the anti-collision air cushion is larger than the diameter of the other end. By setting the end of the air guide tube located in the anti-collision air cushion in a conical shape, the anti-collision air cushion presents a state of fast air discharge and slow air intake under the action of external force, and the anti-collision air cushion performs buffering and anti-collision protection on the boom body by controlling the flow of gas in the anti-collision air cushion.

[0016] In one or more embodiments of the present utility model, a plurality of uniformly distributed exhaust sound holes are drilled on the outer side of the sound shell. The exhaust sound holes conduct the gas inside the sound shell and the external gas.

[0017] In one or more embodiments of the present utility model, the bottom surface of the inner wall of the sound shell is conically arranged, and the sound shell is cooperatively arranged with the buzzer collision ball. By arranging the bottom surface of the inner wall of the sound shell to be conical, when there is no air flow passing through the air duct, the buzzer collision ball can move to the air outlet position of the air duct under the action of gravity, so as to facilitate the buzzer collision ball to shake inside the sound shell under the action of the air flow discharged from the air duct, and thus play a role of anti-collision warning for the boom body through the mutual collision between the buzzer collision ball and the sound shell.

[0018] Compared with the prior art, a truck-mounted crane boom disclosed by the present utility model can play a role of anti-collision protection for the truck-mounted crane boom by arranging an adjustable anti-collision protection component, reducing the risk of damage to the truck-mounted crane boom caused by collision, and improving the operation stability and safety of the truck-mounted crane boom. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a top view cross-sectional view of a truck-mounted crane boom in an embodiment of the present utility model;

[0021] Figure 2 is Figure 1 a schematic structural diagram of part B in

[0022] Figure 3 It is a side view cross-sectional view of a truck-mounted crane boom in an embodiment of the present utility model;

[0023] Figure 4 is Figure 3 a schematic structural diagram of part A in

[0024] Figure 5 It is a three-dimensional view of a truck-mounted crane boom in an embodiment of the present utility model.

[0025] MAIN REFERENCE NUMERALS DESCRIPTION:

[0026] 1 - Boom body, 2 - Adjustable anti - collision protection component, 201 - Fitting housing, 202 - Fixed seat, 203 - Adjusting slider, 204 - Anti - collision storage seat, 205 - Anti - collision air cushion, 206 - Moving threaded rod, 207 - Rotating end, 208 - Fixed connection seat, 209 - Support link, 210 - Fixed support, 211 - Anti - collision fixing plate, 212 - Support spring, 3 - Sound warning mechanism, 301 - Sound shell, 302 - Air duct, 303 - Buzzer collision ball. Detailed implementation mode

[0027] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0028] As Figures 1 to 5 shown, a truck crane boom in an embodiment of the present invention includes: a boom body 1, an adjustable anti - collision protection component 2, and a pair of sound warning mechanisms 3.

[0029] As Figure 5 shown, the adjustable anti - collision protection component 2 is sleeved on the outer side of the boom body 1. The adjustable anti - collision protection component 2 includes a fitting housing 201, and the fitting housing 201 is fixedly assembled on the outer side of the boom body 1. The fitting housing 201 plays a role in assembling and fixing the fixed seat 202.

[0030] As Figures 1 to 2 shown, fixed seats 202 are fixedly assembled on both sides of the fitting housing 201. The fixed seats 202 play a role in assembling and limiting and sliding guiding the adjusting sliders 203.

[0031] As Figures 1 to 2 shown, a moving threaded rod 206 is rotatably connected in the fixed seat 202, and the moving threaded rod 206 passes through a pair of adjusting sliders 203. The moving threaded rod 206 plays a role in assembling and limiting and sliding guiding the pair of adjusting sliders 203.

[0032] As Figures 1 to 2 shown, one end of the moving threaded rod 206 outside the fixed seat 202 is fixedly connected with a rotating end 207. The moving threaded rod 206 is rotationally driven by controlling the rotation of the rotating end 207.

[0033] As Figures 1 to 2As shown, a pair of adjusting sliders 203 are slidably assembled in the fixed seat 202. The adjusting sliders 203 play a role in assembling and fixing the fixed connection seat 208 and controlling its sliding.

[0034] It should be noted that internal threads with the same direction are drilled in both of the pair of adjusting sliders 203, and external threads with opposite directions are drilled at both ends of the moving threaded rod 206. The moving threaded rod 206 is threadedly connected to the adjusting sliders 203. This facilitates the pair of adjusting sliders 203 to move in opposite directions along with the rotation of the moving threaded rod 206 under the action of the internal and external threads, thereby facilitating the movement control of the support connecting rod 209.

[0035] As Figures 1 to 2 shown, a fixed connection seat 208 is fixedly connected to one side of the pair of adjusting sliders 203 outside the fixed seat 202. The fixed connection seat 208 plays a role in assembling and limiting the support connecting rod 209, enabling the support connecting rod 209 to move synchronously with the movement of the adjusting sliders 203 under the action of the fixed connection seat 208.

[0036] As Figures 1 to 2 shown, a support connecting rod 209 is hinged in the fixed connection seat 208. The support connecting rod 209 plays a role in connecting the fixed connection seat 208 and the fixed support 210. By controlling the movement of the support connecting rod 209, the movement of the anti-collision fixing plate 211 is controlled, so that the anti-collision protection distance of the anti-collision air cushion 205 can be adjusted according to the actual situation.

[0037] As Figures 1 to 2 shown, one end of the support connecting rod 209 away from the fixed connection seat 208 is hinged to a fixed support 210. The fixed support 210 plays a role in connecting the support connecting rod 209 and the anti-collision fixing plate 211.

[0038] As Figures 1 to 2 shown, an anti-collision fixing plate 211 is fixedly connected to the side of the fixed support 210 facing away from the support connecting rod 209, and the anti-collision fixing plate 211 is fixedly connected to the bottom of the anti-collision storage seat 204. The anti-collision fixing plate 211 plays a role in assembling and fixing the anti-collision storage seat 204.

[0039] As Figures 1 to 2 shown, an anti-collision storage seat 204 is hinged to one side of the pair of adjusting sliders 203 facing away from the assembly housing 201. The anti-collision storage seat 204 plays a role in storing and limiting the anti-collision air cushion 205.

[0040] As Figures 1 to 4 shown, an anti-collision air cushion 205 is fixedly assembled in the anti-collision storage seat 204. The anti-collision air cushion 205 provides buffer anti-collision protection for the boom body 1 by deforming.

[0041] As Figures 1 to 4As shown in the figure, a plurality of groups of uniformly distributed support springs 212 are fixedly connected inside the anti-collision air cushion 205. The anti-collision air cushion 205 is supported and reset by the contraction and reset of the plurality of groups of support springs 212, so as to provide anti-collision protection for the boom body 1 through the contraction and reset of the anti-collision air cushion 205.

[0042] As Figures 3 to 4 shown in the figure, a pair of sound warning mechanisms 3 are fixedly assembled above the anti-collision storage seat 204. The sound warning mechanism 3 includes a sound shell 301, and the sound shell 301 is fixedly assembled above the anti-collision storage seat 204. The sound shell 301 plays a role in storing and limiting the buzzer collision ball 303. The warning prompt sound is generated by the collision of the buzzer collision ball 303 with the sound shell 301.

[0043] Among them, a plurality of uniformly distributed exhaust sound holes are drilled on the outer side of the sound shell 301. The exhaust sound holes conduct the gas inside the sound shell 301 and the outside gas.

[0044] Specifically, the bottom surface of the inner wall of the sound shell 301 is conical, and the sound shell 301 is arranged in cooperation with the buzzer collision ball 303. By setting the bottom surface of the inner wall of the sound shell 301 to be conical, when there is no air flow through the air duct 302, the buzzer collision ball 303 can move to the air outlet position of the air duct 302 under the action of gravity, so as to facilitate the buzzer collision ball 303 to shake inside the sound shell 301 under the action of the air flow discharged from the air duct 302, so as to play an anti-collision warning role for the boom body 1 through the mutual collision of the buzzer collision ball 303 and the sound shell 301.

[0045] As Figures 3 to 4 shown in the figure, an air duct 302 is connected between the sound shell 301 and the anti-collision air cushion 205. The air duct 302 plays a role in connecting the sound shell 301 and the anti-collision air cushion 205, and is convenient for guiding the air discharged by the deformation of the anti-collision air cushion 205.

[0046] It should be noted that one end of the air duct 302 located inside the anti-collision air cushion 205 is conical, and the diameter of one end of the air duct 302 located inside the anti-collision air cushion 205 is larger than that of the other end. By setting one end of the air duct 302 located inside the anti-collision air cushion 205 to be conical, the anti-collision air cushion 205 presents a state of fast air outlet and slow air inlet under the action of external force, and the anti-collision air cushion 205 provides buffer anti-collision protection for the boom body 1 by controlling the gas flow inside the anti-collision air cushion 205.

[0047] As Figures 3 to 4As shown, a buzzer collision ball 303 is arranged inside the buzzer housing 301. The buzzer collision ball 303 sways inside the buzzer housing 301 under the action of air flow, and a warning prompt sound is generated by the way of the buzzer collision ball 303 colliding with the buzzer housing 301. At the same time, since the swaying frequency of the buzzer collision ball 303 is closely related to the air pressure of the air flow led out by the air duct 302, when the external force received by the anti-collision air cushion 205 is large, the air pressure of the air flow led out by the air duct 302 is large, so that the warning prompt sound generated by the collision of the buzzer collision ball 303 and the buzzer housing 301 is more obvious.

[0048] During specific use, according to the actual situation of the use environment of the boom body 1, the moving threaded rod 206 can be rotated by controlling the rotation of the rotating end 207. A pair of adjusting sliders 203 move along with the rotation of the moving threaded rod 206 under the action of internal and external threads. The support connecting rod 209 is driven to move by the movement of the adjusting sliders 203, so as to adjust the position of the anti-collision fixing plate 211. After the position is adjusted, the boom body 1 is protected against collision by the anti-collision air cushion 205, the support spring 212 and the anti-collision fixing plate 211. When the boom body 1 collides during movement, the boom body 1 is protected against collision by the deformation of the anti-collision air cushion 205.

[0049] When the anti-collision air cushion 205 deforms, the air inside the anti-collision air cushion 205 is conveyed into the buzzer housing 301 along the air duct 302. The buzzer collision ball 303 inside the buzzer housing 301 sways under the action of air flow, and a warning prompt sound is generated by the mutual collision of the buzzer collision ball 303 and the buzzer housing 301, and the boom body 1 is warned by the warning prompt sound.

[0050] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0051] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vehicle mounted crane arm, characterized in that: include: Boom body; An adjustable anti-collision protection component is sleeved on the outer side of the boom body, and the adjustable anti-collision protection component includes an assembly shell, and the assembly shell is fixedly assembled on the outer side of the boom body. Both sides of the assembly shell are fixedly assembled with fixed seats, and a pair of adjustment sliders are slidably assembled in the fixed seats. The side of the pair of adjustment sliders away from the assembly shell is hinged with an anti-collision storage seat, and an anti-collision air cushion is fixedly assembled in the anti-collision storage seat; A pair of beeping warning mechanisms are both fixedly mounted above the anti-collision storage seat, the beeping warning mechanism comprises a beeping shell, the beeping shell is fixedly mounted above the anti-collision storage seat, an air duct is connected between the beeping shell and the anti-collision air cushion, and a buzzing collision ball is arranged inside the beeping shell.

2. The boom of a truck mounted crane according to claim 1, characterized in that: A movable threaded rod is rotatably connected inside the fixed seat, and the movable threaded rod passes through a pair of adjusting sliders. One end of the movable threaded rod located outside the fixed seat is fixedly connected to a rotating end.

3. The boom of a truck mounted crane according to claim 2, characterized in that: A pair of adjusting sliders are both provided with internal threads in the same direction, and both ends of the movable threaded rod are provided with external threads in opposite directions. The movable threaded rod is threadedly connected with the adjusting sliders.

4. The boom of a truck mounted crane according to claim 1, characterized in that: A pair of adjusting slide blocks are fixedly connected to a fixed connection seat at one side outside the fixed seat, and a supporting connecting rod is hinged inside the fixed connection seat.

5. The boom of a truck mounted crane according to claim 4, characterized in that: A fixed support is hinged at one end of the support link away from the fixed connection seat, and an anti-collision fixing plate is fixedly connected to the side of the fixed support away from the support link, and the anti-collision fixing plate is fixedly connected to the bottom of the anti-collision storage seat.

6. The boom of a truck mounted crane according to claim 1, characterized in that: A plurality of groups of evenly distributed support springs are fixedly connected inside the anti-collision air cushion.

7. The boom of a truck mounted crane according to claim 1, characterized in that: One end of the air guide pipe located in the anti-collision air cushion is arranged in a conical shape, and the diameter of the one end of the air guide pipe located in the anti-collision air cushion is greater than the diameter of the other end.

8. The boom of a truck mounted crane according to claim 1, characterized in that: The outer side of the chime shell is provided with a plurality of evenly distributed exhaust chime holes.

9. The boom of a truck mounted crane according to claim 1, characterized in that: The inner wall bottom surface of the chime shell is conical, and the chime shell is matched with the buzzer collision ball.

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