Foldable and extendable arm support structure and method

Abstract

The invention discloses a foldable and extendable arm support structure and method, and relates to the technical field of arm support structures, the arm support structure comprises an arm support base, an arm support middle connecting rod is hinged to the arm support base, an arm support tail rod is hinged to the arm support middle connecting rod, and a mechanical claw operation assembly and a visual induction assembly are arranged on the arm support tail rod; the visual sensing assembly is provided with a protective baffle, two magnetic attraction blocks are fixedly installed on the protective baffle, two connecting insertion rods are fixedly installed on the boom tail rod, rectangular through holes are formed in the two connecting insertion rods, and two rectangular sliding grooves are formed in the boom tail rod. The mechanical claw operation assembly and the visual induction assembly enter the protection groove body, the protection baffle is connected with the protection groove body through the magnetic attraction block, the mounting groove of the protection groove body can limit the mechanical claw operation assembly, the assembly is prevented from being collided by foreign objects in a non-working state, and the assembly is effectively protected.

Description

Technical Field

[0001] The present invention relates to the technical field of boom structures, and particularly to a foldable and extendable boom structure and method. Background Art

[0002] The foldable and extendable boom structure is a mechanism widely used in construction machinery such as aerial work platforms, fire trucks, cranes, and aerospace equipment such as satellites. It usually consists of multiple boom sections. These boom sections can be telescopic, that is, one boom section is sleeved inside another boom section, and the length of the boom is changed through telescopic movement. They can also be foldable, and the boom sections are connected by hinges or pin shafts and can be folded and unfolded around these connection points. Common driving methods include hydraulic drive, electric drive, and mechanical drive, etc. The hydraulic drive system has advantages such as large power output, stable operation, and convenient speed regulation. The hydraulic cylinder is extended and retracted by the pressure of hydraulic oil, thereby driving the folding and extension of the boom; the electric drive has characteristics such as high control precision and environmental friendliness. Generally, a motor drives transmission components such as lead screws, chains, or gears to achieve the movement of the boom; mechanical drives such as link mechanisms and cam mechanisms can transmit power to the boom to achieve its folding and extension actions; The current foldable and extendable boom structure is found to have at least the following technical problems: First, in most current extendable and foldable boom structures, there are no effective protective measures for the mechanical claw operation components and visual sensing components installed at the end of the boom. When the boom is folded and stored or idle, these components are easily exposed and are subject to external impacts and scratches, resulting in component damage or reduced accuracy, increasing the equipment maintenance cost and downtime, and affecting the normal operation of the equipment.

[0003] Second, the connection methods between the mechanical claw operation components and visual sensing components of the existing boom structure and the boom are complex. When overhauling, multiple components need to be removed, and the process is cumbersome and time-consuming. At the same time, the boom occupies a large space after folding, which is not conducive to the storage and transportation of the equipment in places with limited space, such as narrow workshops and warehouses, restricting the application scenarios of the equipment.

[0004] Third, when the existing foldable and extendable boom structure stops being used or is under maintenance and repair, there are no obvious and effective safety warning measures. When the boom is in a non-working state and some structures may pose potential dangers (such as unsecured components, sharp corners, etc.), due to the lack of a dedicated warning device, surrounding workers or other personnel are likely to approach unknowingly, posing a risk of being scratched, tripped, or injured by touching unstable components, and the safety of personnel cannot be fully guaranteed. Summary of the Invention

[0005] The purpose of the present invention is to provide a foldable and extendable boom structure and method to at least solve or improve one of the problems in the prior art.

[0006] To achieve the above object, the present invention adopts the following solutions: In the first aspect of the present invention, a foldable and extensible boom structure is provided, including a boom base, on which a boom intermediate link is hinged, on which a boom tail link is hinged, on which a mechanical claw operation component and a visual sensing component are provided, on which a protective baffle is provided, on which two magnetic attraction blocks are fixedly installed, on which two connecting insertion rods are fixedly installed, rectangular through holes are provided on both of the two connecting insertion rods, two rectangular sliding grooves are provided on the boom tail link, and a clamping mechanism is provided in each of the two rectangular sliding grooves provided on the boom tail link. The clamping mechanism includes a guiding round rod fixedly installed on the inner wall of the rectangular sliding groove provided on the boom tail link, two extrusion cross rods fixedly installed on the side end of the boom base, a fixed long rod fixedly installed on the side end of the boom base, and a rectangular sliding hole is provided on the fixed long rod. The boom tail link and the boom intermediate link are driven by a hydraulic component to retract, so that the mechanical claw operation component and the visual sensing component enter the protective groove body. The protective baffle is connected to the protective groove body by magnetic attraction blocks, and the installation groove of the protective groove body can limit the mechanical claw operation component, avoid the component being collided by external objects in the non-working state, effectively protect the component, and extend its service life.

[0007] Preferably, a protective groove body is fixedly installed on the boom intermediate link, the protective baffle is magnetically connected to the protective groove body through two magnetic attraction blocks, and a G-shaped hook claw is slidably installed through the guiding round rod.

[0008] Preferably, a return spring is fixedly installed between the G-shaped hook claw and the inner wall of the rectangular sliding groove, the return spring is sleeved on the circumferential surface of the guiding round rod, and the G-shaped hook claw is sleeved in the rectangular through hole provided on the connecting insertion rod.

[0009] Preferably, a U-shaped fixing rod is fixedly installed on the right side of the inner wall of the rectangular sliding hole provided on the fixed long rod, a U-shaped sliding rod is slidably installed in the rectangular sliding hole provided on the fixed long rod, warning canvases are provided at the front and rear ends of the U-shaped sliding rod and the U-shaped fixing rod, and a support rod is fixedly installed on the fixed long rod.

[0010] In the second aspect of the present invention, an operation method of a foldable and extensible boom structure is provided, including the following steps: Step S1: Drive the boom tail link and the boom intermediate link to fold and retract towards the boom base through a hydraulic component, so that the mechanical claw operation component and the visual sensing component move synchronously with the boom tail link into the protective groove body; utilize the magnetic attraction blocks on the protective baffle to magnetically fix to the protective groove body, and limit the mechanical claw operation component through the installation groove in the protective groove body; Step S2: Drive the intermediate boom link to rotate reversely around the boom base, so that the G-shaped claw on the boom tail rod contacts the extrusion cross bar of the boom base; squeeze the G-shaped claw through the arc end of the extrusion cross bar, so that it slides along the guiding round rod and compresses the return spring until the G-shaped claw disengages from the rectangular through hole of the connecting plug rod, realizing the detachable separation of the mechanical claw operation component and the visual sensing component from the boom tail rod; Step S3: Manually push the U-shaped sliding rod to slide along the rectangular sliding hole of the fixed long rod, driving the warning canvas connected to the U-shaped sliding rod and the U-shaped fixed rod to unfold, completely covering the folded intermediate boom link and the boom tail rod; Step S4: Reinsert the connecting plug rod into the boom tail rod, and drive the intermediate boom link to unfold reversely; push the G-shaped claw to reset and insert into the rectangular through hole of the connecting plug rod by the elastic force of the return spring. After the components are fixed, enter the working state.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the boom tail rod and the intermediate boom link are driven by the hydraulic component to retract, so that the mechanical claw operation component and the visual sensing component enter the protection groove body. The protection baffle is connected to the protection groove body by the magnetic attraction block, and the installation groove of the protection groove body can limit the mechanical claw operation component, avoiding the components being collided by foreign objects in the non-working state, effectively protecting the components and prolonging their service life.

[0012] In the present invention, by rotating the intermediate boom link reversely around the boom base, the G-shaped claw is squeezed by the extrusion cross bar, and the G-shaped claw moves in the rectangular sliding groove of the boom tail rod and disengages from the rectangular through hole of the connecting plug rod, so that the mechanical claw operation component and the visual sensing component are separated from the boom tail rod, facilitating the quick removal of the components for maintenance, and greatly improving the convenience of equipment maintenance.

[0013] In the present invention, by sliding the U-shaped sliding rod in the rectangular sliding hole of the fixed long rod, the warning canvas is unfolded to cover the intermediate boom link and the boom tail rod. The warning signs on the warning canvas can clearly prompt the danger, effectively blocking the approach of irrelevant personnel and ensuring the safety of the equipment and personnel.

[0014] In the present invention, by moving the intermediate boom link and the boom tail rod reversely, the extrusion cross bar is separated from the G-shaped claw, and the elastic force of the return spring is used to push the G-shaped claw to insert into the rectangular through hole of the connecting plug rod, firmly connecting the connecting plug rod and the boom tail rod, which ensures the firm structure and simple operation of the equipment during use, and improves the reliability and usability of the equipment.

[0015] In the present invention, the movement of the boom tail rod and the intermediate boom connecting rod is precisely controlled by a hydraulic component, enabling the boom to freely switch between the working state and the retracted state. This design allows the equipment to adapt to different working environments and site space limitations, and can be flexibly applied in both narrow indoor working areas and open outdoor sites, effectively expanding the application range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the equipment of the present invention in the retracted state; Figure 2 It is a structural diagram of the equipment of the present invention in use; Figure 3 It is a structural diagram of the boom tail rod of the present invention; Figure 4 It is a structural diagram of the protective baffle of the present invention; Figure 5 It is a structural diagram of the boom base of the present invention; Figure 6 It is a structural diagram of the warning canvas of the present invention; Figure 7 For the present invention Figure 3 Enlarged structural diagram of part A; Figure 8 For the present invention Figure 5 Enlarged structural diagram of part B.

[0017] In the figures, the correspondence between the component names and the reference numerals of the drawings is as follows: 11, protective baffle; 12, visual sensing component; 13, magnetic block; 14, mechanical claw operation component; 15, connecting plug rod; 16, rectangular through hole; 21, boom base; 22, intermediate boom connecting rod; 23, protective groove body; 24, boom tail rod; 25, rectangular sliding groove; 26, return spring; 27, G-shaped claw; 28, guiding round rod; 31, U-shaped fixing rod; 32, warning canvas; 33, U-shaped sliding rod; 34, rectangular sliding hole; 35, fixed long rod; 36, extrusion cross bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0019] Example 1 Please refer to Figure 1 - Figure 8, the present invention provides a foldable and extensible boom structure, including a boom base 21, a boom intermediate link 22 is hinged on the boom base 21, a boom tail rod 24 is hinged on the boom intermediate link 22, a mechanical claw operation component 14 and a visual sensing component 12 are provided on the boom tail rod 24, a protective baffle 11 is provided on the visual sensing component 12, two magnetic attraction blocks 13 are fixedly installed on the protective baffle 11, two connecting insertion rods 15 are fixedly installed on the boom tail rod 24, rectangular through holes 16 are formed in both of the two connecting insertion rods 15, two rectangular sliding grooves 25 are formed in the boom tail rod 24, and a clamping mechanism is provided in each of the two rectangular sliding grooves 25 formed in the boom tail rod 24. The clamping mechanism includes a guiding round rod 28, the guiding round rod 28 is fixedly installed on the inner wall of the rectangular sliding groove 25 formed in the boom tail rod 24, two extrusion cross rods 36 are fixedly installed on the side end of the boom base 21, a fixed long rod 35 is fixedly installed on the side end of the boom base 21, and a rectangular sliding hole 34 is formed in the fixed long rod 35. This device Figure 1 shows the state where the boom structure is retracted, Figure 2 is the use state. After the boom is used, it needs to be changed to Figure 1 the retracted state. First, the hydraulic component in the boom structure is used to drive the boom tail rod 24 and the boom intermediate link 22 to move, so that they are gradually retracted. During the retraction process, the boom intermediate link 22 will gradually approach and retract to a state where it overlaps itself. As the boom intermediate link 22 moves, the visual sensing component 12 and the mechanical claw operation component 14 at the port of the boom tail rod 24 will also move accordingly. Finally, these two components will move into the protective groove 23 on the boom intermediate link 22. At this time, the two magnetic attraction blocks 13 on the protective baffle 11 will be tightly magnetically attracted to the protective groove 23 by magnetism. It should be noted that an installation groove is pre-opened on the protective groove 23. This installation groove can not only effectively accommodate the mechanical claw operation component 14, but also play a limiting role on it, ensuring that the component remains stable in the retracted state and avoiding shaking or displacement.

[0020] A protective groove body 23 is fixedly installed on the middle connecting rod 22 of the boom. The protective baffle 11 is magnetically connected to the protective groove body 23 through two magnetic attraction blocks 13. A G-shaped claw 27 is slidably installed through the guiding round rod 28. After the mechanical claw operating assembly 14 and the visual sensing assembly 12 are successfully received inside the protective groove body 23, further operations can be performed on the boom base 21 and the middle connecting rod 22 of the boom. During the operation, the middle connecting rod 22 of the boom is reversely rotated around the hinge point of the boom base 21. During the flipping process of the middle connecting rod 22 of the boom, the two G-shaped claws 27 on the tail rod 24 of the boom will first contact the two extrusion cross bars 36 fixedly installed on the boom base 21. Since the end of the extrusion cross bar 36 is designed as an arc shape, this special shape can cleverly extrude the G-shaped claw 27 when the tail rod 24 of the boom continues to rotate. As the tail rod 24 of the boom rotates continuously, the extrusion cross bar 36 continuously applies force to the G-shaped claw 27, causing the G-shaped claw 27 to displace a certain distance in the rectangular chute 25 opened on the tail rod 24 of the boom. When the G-shaped claw 27 is extruded and displaced to a certain extent, its upper end will move out of the rectangular through hole 16 opened on the connecting plug rod 15. At this time, the mechanical claw operating assembly 14 and the visual sensing assembly 12 in the device are in a separated state from the tail rod 24 of the boom. The advantage of this design is that when maintenance operations need to be performed on the mechanical claw operating assembly 14 and the visual sensing assembly 12, the staff can quickly and conveniently remove them from the device, greatly improving the maintenance efficiency.

[0021] A return spring 26 is fixedly installed between the inner wall of the G-shaped claw 27 and the rectangular chute 25. The return spring 26 is sleeved on the circumferential surface of the guiding round rod 28. The G-shaped claw 27 is sleeved in the rectangular through hole 16 opened on the connecting plug rod 15. After the above operations of retracting the boom and separating the components are completed, the user can perform the next operation by manually moving the U-shaped sliding rod 33. The U-shaped sliding rod 33 can freely move in the rectangular sliding hole 34 opened on the fixed long rod 35. When the user pushes the U-shaped sliding rod 33, it will slide along the rectangular sliding hole 34, thereby driving the connected warning canvas 32 to unfold. At this time, the warning canvases 32 at the front and rear ends will gradually stretch and finally completely cover the middle connecting rod 22 and the tail rod 24 of the boom. Moreover, eye-catching warning signs are printed on both warning canvases 32. These sign slogans can play a warning role, reminding irrelevant personnel not to approach the device, thus effectively preventing irrelevant personnel from damaging the device due to accidental touch or other reasons, providing an additional protective measure for the device in the stored state.

[0022] On the right side of the inner wall of the rectangular sliding hole 34 opened in the fixed long rod 35, a U-shaped fixed rod 31 is fixedly installed. A U-shaped sliding rod 33 is slidably installed in the rectangular sliding hole 34 opened in the fixed long rod 35. Warning canvases 32 are provided at both the front and rear ends of the U-shaped sliding rod 33 and the U-shaped fixed rod 31. A support rod is fixedly installed on the fixed long rod 35. When the visual induction component 12 and the mechanical claw operation component 14 are repaired, they need to be reinstalled on the equipment. During installation, just insert the two connecting plug rods 15 into the boom tail rod 24 again. During the insertion process, the protective baffle 11 and the protective groove body 23 can play an important protective role, effectively avoiding the possibility of the visual induction component 12 and the mechanical claw operation component 14 being impacted by foreign objects when not in use. When the equipment needs to be used again, the operator only needs to move the boom intermediate connecting rod 22 and the boom tail rod 24 in the reverse direction. During the reverse movement, the extrusion cross bar 36 will gradually separate from the G-shaped hook claw 27. At this time, the reset spring 26 that was elastically deformed due to extrusion before will play a role. Under the action of its elastic force, the G-shaped hook claw 27 will quickly insert into the rectangular through hole 16 opened in the connecting plug rod 15. When the G-shaped hook claw 27 successfully inserts into the rectangular through hole 16, the connecting plug rod 15 and the boom tail rod 24 are fixed, and the entire equipment can be put into normal use at this time.

[0023] In the present invention, the hydraulic component drives the boom tail rod 24 and the boom intermediate connecting rod 22 to retract, enabling the mechanical claw operating component 14 and the visual sensing component 12 to enter the protective groove body 23. The protective baffle 11 is connected to the protective groove body 23 by means of a magnetic attraction block 13. The installation groove of the protective groove body 23 can limit the mechanical claw operating component 14, preventing the components from being collided by external objects in the non-working state, effectively protecting the components and extending their service life. In the present invention, by rotating the boom intermediate connecting rod 22 in the reverse direction around the boom base 21, the extrusion cross bar 36 is used to squeeze the G-shaped hook claw 27. The G-shaped hook claw 27 moves in the rectangular chute 25 of the boom tail rod 24 and disengages from the rectangular through hole 16 of the connecting plug rod 15, so that the mechanical claw operating component 14 and the visual sensing component 12 are separated from the boom tail rod 24, facilitating the quick removal of the components for maintenance and greatly improving the convenience of equipment maintenance. In the present invention, by sliding the U-shaped sliding rod 33 in the rectangular sliding hole 34 of the fixed long rod 35, the warning canvas 32 is unfolded to cover the boom intermediate connecting rod 22 and the boom tail rod 24. The warning signs on the warning canvas 32 can clearly indicate danger, effectively blocking unauthorized personnel from approaching and ensuring the safety of the equipment and personnel. In the present invention, by moving the boom intermediate connecting rod 22 and the boom tail rod 24 in the reverse direction, the extrusion cross bar 36 is separated from the G-shaped hook claw 27, and the elastic force of the return spring 26 is used to push the G-shaped hook claw 27 into the rectangular through hole 16 of the connecting plug rod 15, firmly connecting the connecting plug rod 15 and the boom tail rod 24, which ensures the firm structure and simple operation of the equipment during use, improving the reliability and usability of the equipment. In the present invention, the hydraulic component precisely controls the movement of the boom tail rod 24 and the boom intermediate connecting rod 22 to achieve the free conversion of the boom between the use state and the storage state. This design enables the equipment to adapt to different working environments and site space limitations, and can be flexibly applied whether in a narrow indoor working area or an open outdoor site, effectively expanding the application range of the equipment.

[0024] Working principle: The first step, this equipment Figure 1 shows the state where the boom structure is retracted, Figure 2 which is the use state. After the boom is used, it needs to be changed to Figure 1In the storage state, first, the hydraulic components within the boom structure drive the movement of the boom tail rod 24 and the boom intermediate connecting rod 22, causing them to gradually retract. During the retraction process, the boom intermediate connecting rod 22 will gradually approach and retract to a state where it overlaps with itself. As the boom intermediate connecting rod 22 moves, the visual sensing component 12 and the mechanical claw operating component 14 at the port of the boom tail rod 24 will also move accordingly. Eventually, these two components will move into the protective groove 23 on the boom intermediate connecting rod 22. At this time, the two magnetic attraction blocks 13 on the protective baffle 11 will be tightly magnetically attracted to the protective groove 23 by magnetism. It should be noted that an installation groove is pre-opened on the protective groove 23. This installation groove can not only effectively store the mechanical claw operating component 14 but also play a limiting role on it, ensuring that the component remains stable in the storage state and avoiding shaking or displacement.

[0025] In the second step, after the mechanical claw operating component 14 and the visual sensing component 12 are successfully stored inside the protective groove 23, further operations can be performed on the boom base 21 and the boom intermediate connecting rod 22. During the operation, the boom intermediate connecting rod 22 is rotated in the reverse direction around the hinge point of the boom base 21. During the flipping process of the boom intermediate connecting rod 22, the two G-shaped hook claws 27 on the boom tail rod 24 will first come into contact with the two extrusion crossbars 36 fixedly installed on the boom base 21. Since the end of the extrusion crossbar 36 is designed in an arc shape, this special shape can cleverly extrude the G-shaped hook claws 27 when the boom tail rod 24 continues to rotate. As the boom tail rod 24 continues to rotate, the extrusion crossbar 36 continuously applies force to the G-shaped hook claws 27, causing the G-shaped hook claws 27 to displace a certain distance within the rectangular sliding groove 25 opened on the boom tail rod 24. When the G-shaped hook claws 27 are extruded and displaced to a certain extent, their upper ends will move out of the rectangular through hole 16 opened on the connecting plug rod 15. At this time, the mechanical claw operating component 14 and the visual sensing component 12 inside the device are in a separated state from the boom tail rod 24. The advantage of this design is that when maintenance operations need to be performed on the mechanical claw operating component 14 and the visual sensing component 12, the staff can quickly and conveniently remove them from the device, greatly improving the maintenance efficiency.

[0026] The third step, after completing the above-mentioned arm folding and component separation operations, the user can proceed to the next step by manually moving the U-shaped sliding rod 33. The U-shaped sliding rod 33 can move freely in the rectangular sliding hole 34 opened by the fixed long rod 35. When the user pushes the U-shaped sliding rod 33, it will slide along the rectangular sliding hole 34, thereby driving the warning canvas 32 connected to it to unfold. At this time, the warning canvases 32 located at the front and rear ends will gradually stretch, and eventually completely cover the middle connecting rod 22 of the arm and the tail rod 24 of the arm. Moreover, the two warning canvases 32 are printed with eye-catching warning signs and slogans. These signs and slogans can serve as a warning, reminding irrelevant personnel not to approach the equipment, thereby effectively preventing irrelevant personnel from damaging the equipment due to accidental touch or other reasons, and providing additional protection measures for the equipment in the storage state.

[0027] The fourth step is that after the visual sensing component 12 and the mechanical claw operating component 14 are overhauled, they need to be reinstalled back into the equipment. During installation, only the two connecting rods 15 need to be inserted into the boom tail rod 24 again. During the insertion process, the protective baffle 11 and the protective slot 23 can play an important protective role, effectively avoiding the possibility of the visual sensing component 12 and the mechanical claw operating component 14 being hit by foreign objects when not in use. When the equipment needs to be used again, the operator only needs to move the boom middle connecting rod 22 and the boom tail rod 24 in the opposite direction. During the reverse movement, the extrusion cross bar 36 will gradually separate from the G-shaped hook claw 27. At this time, the reset spring 26 that was previously squeezed and elastically deformed will play a role. Under the action of its elastic force, the G-shaped hook claw 27 will quickly insert into the rectangular through hole 16 opened by the connecting rod 15. When the G-shaped hook claw 27 is successfully inserted into the rectangular through hole 16, the connecting rod 15 and the boom tail rod 24 are fixed, and the entire equipment can be put into use normally at this time.

[0028] In the present invention, the hydraulic component drives the boom tail rod 24 and the boom intermediate connecting rod 22 to retract, so that the mechanical claw operation component 14 and the visual sensing component 12 enter the protection groove body 23. The protection baffle 11 is connected to the protection groove body 23 by the magnetic attraction block 13. The installation groove of the protection groove body 23 can limit the mechanical claw operation component 14, avoiding the components being collided by foreign objects in the non-working state, effectively protecting the components and prolonging their service life. In the present invention, by rotating the boom intermediate connecting rod 22 reversely around the boom base 21, the extrusion cross bar 36 is used to extrude the G-shaped hook claw 27. The G-shaped hook claw 27 moves in the rectangular chute 25 of the boom tail rod 24 and disengages from the rectangular through hole 16 of the connecting plug rod 15, so that the mechanical claw operation component 14 and the visual sensing component 12 are separated from the boom tail rod 24, facilitating the quick removal of the components for maintenance and greatly improving the convenience of equipment maintenance. In the present invention, by sliding the U-shaped sliding rod 33 in the rectangular sliding hole 34 of the fixed long rod 35, the warning canvas 32 is unfolded to cover the boom intermediate connecting rod 22 and the boom tail rod 24. The warning signs on the warning canvas 32 can clearly prompt danger, effectively blocking unauthorized personnel from approaching and ensuring the safety of the equipment and personnel. In the present invention, by moving the boom intermediate connecting rod 22 and the boom tail rod 24 reversely, the extrusion cross bar 36 is separated from the G-shaped hook claw 27, and the elastic force of the return spring 26 is used to push the G-shaped hook claw 27 into the rectangular through hole 16 of the connecting plug rod 15 to firmly connect the connecting plug rod 15 and the boom tail rod 24, which ensures the firm structure and simple operation during the use of the equipment, improving the reliability and usability of the equipment. In the present invention, the hydraulic component precisely controls the movement of the boom tail rod 24 and the boom intermediate connecting rod 22 to realize the free conversion of the boom between the use state and the storage state. This design enables the equipment to adapt to different working environments and site space limitations, and can be flexibly applied whether in a narrow indoor operation area or an open outdoor site, effectively expanding the application range of the equipment.

[0029] Embodiment 2 An operation method for a foldable and extendable boom structure includes the following steps: Step S1. Boom folding and storage: The hydraulic component drives the boom tail rod 24 and the boom intermediate connecting rod 22 to fold and retract towards the boom base 21, so that the mechanical claw operation component 14 and the visual sensing component 12 move synchronously with the boom tail rod 24 into the protection groove body 23; The magnetic attraction block 13 on the protection baffle 11 is magnetically fixed to the protection groove body 23, and the mechanical claw operation component 14 is limited by the installation groove in the protection groove body 23; Step S2. Component quick separation: The boom intermediate connecting rod 22 is driven to rotate reversely around the boom base 21, so that the G-shaped hook claw 27 on the boom tail rod 24 contacts the extrusion cross bar 36 of the boom base 21; By squeezing the arc end of the cross bar 36, the G-shaped hook 27 is squeezed, causing it to slide along the guiding round bar 28 and compress the return spring 26 until the G-shaped hook 27 disengages from the rectangular through hole 16 of the connecting plug rod 15, realizing the detachable separation of the mechanical claw operation assembly 14 and the visual sensing assembly 12 from the boom tail rod 24; Step S3, warning protection deployment: Manually push the U-shaped sliding rod 33 to slide along the rectangular sliding hole 34 of the fixed long rod 35, driving the warning canvas 32 connected to the U-shaped sliding rod 33 and the U-shaped fixed rod 31 to unfold, completely covering the folded boom intermediate connecting rod 22 and the boom tail rod 24; Step S4, component reset and use: Reinsert the connecting plug rod 15 into the boom tail rod 24 and reversely drive the boom intermediate connecting rod 22 to unfold; The elastic force of the return spring 26 is used to push the G-shaped hook 27 to reset and insert into the rectangular through hole 16 of the connecting plug rod 15. After the components are fixed, the working state is entered.

[0030] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0031] As is known by technical common sense, the present invention can be implemented by other embodiments that do not depart from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all respects and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims

1. A foldable and extendable boom structure, comprising a boom base (21), characterized in that: The arm base (21) is hingedly connected to an arm intermediate connecting rod (22), the arm intermediate connecting rod (22) is hingedly connected to an arm tail rod (24), the arm tail rod (24) is provided with a mechanical claw operating component (14) and a visual sensing component (12), the visual sensing component (12) is provided with a protective baffle (11), two magnetic blocks (13) are fixedly mounted on the protective baffle (11), and two connecting rods (15) are fixedly mounted on the arm tail rod (24), and both of the two connecting rods (15) are provided with rectangular through holes (16); Wherein, two rectangular slide grooves (25) are formed on the boom tail rod (24), and a clamping mechanism is provided in each of the two rectangular slide grooves (25) formed on the boom tail rod (24), and the clamping mechanism comprises a guide round rod (28), and the guide round rod (28) is fixedly mounted on the inner wall of the rectangular slide groove (25) formed on the boom tail rod (24); Two extruded cross bars (36) are fixedly mounted on the side ends of the arm support base (21), and a fixed long rod (35) is fixedly mounted on the side ends of the arm support base (21), wherein a rectangular sliding hole (34) is formed on the fixed long rod (35).

2. The foldable and extendable boom structure according to claim 1, characterized in that: A protective trough (23) is fixedly mounted on the intermediate link (22) of the arm frame; The protective baffle (11) is magnetically connected to the protective slot body (23) via two magnetic blocks (13).

3. The foldable and extendable boom structure according to claim 2, characterized in that: A G-shaped hook claw (27) is slidably mounted through the guide round rod (28).

4. The foldable and extendable boom structure according to claim 3, characterized in that: A return spring (26) is fixedly mounted between the G-shaped hook claw (27) and the inner wall of the rectangular slide groove (25).

5. The foldable and extendable boom structure according to claim 4, characterized in that: The return spring (26) is sleeved on the circumferential surface of the guide round rod (28).

6. The foldable and extendable boom structure according to claim 5, characterized in that: The G-shaped hook claw (27) is sleeved in a rectangular through hole (16) formed in the connecting rod (15).

7. The foldable and extendable boom structure according to claim 6, characterized in that: A U-shaped fixing rod (31) is fixedly mounted on the right side of the inner wall of the rectangular sliding hole (34) formed by the fixing long rod (35).

8. The foldable and extendable boom structure according to claim 7, characterized in that: A U-shaped sliding rod (33) is slidably mounted in the rectangular sliding hole (34) formed in the fixed long rod (35).

9. The foldable and extendable boom structure according to claim 8, characterized in that: Warning canvases (32) are provided at both the front and rear ends of the U-shaped sliding rod (33) and the U-shaped fixed rod (31); and a support rod is fixedly mounted on the fixed long rod (35).

10. A method for operating a foldable and extendable boom structure, characterized in that: The following steps are involved: Step S1, driving the boom tail rod (24) and the boom middle connecting rod (22) to fold and retract in the direction of the boom base (21) through the hydraulic assembly, so that the mechanical claw operating assembly (14) and the visual sensing assembly (12) are synchronously moved into the protective slot (23) along with the boom tail rod (24); the magnetic attraction block (13) on the protective baffle (11) is magnetically fixed to the protective slot (23), and the mechanical claw operating assembly (14) is limited by the mounting groove in the protective slot (23); Step S2, driving the boom intermediate connecting rod (22) to rotate in the opposite direction around the boom base (21), so that the G-shaped hook claw (27) on the boom tail rod (24) contacts the extrusion cross bar (36) of the boom base (21); squeezing the G-shaped hook claw (27) through the arc end of the extrusion cross bar (36) so that it slides along the guide round rod (28) and compresses the return spring (26) until the G-shaped hook claw (27) is disengaged from the rectangular through hole (16) of the connecting rod (15), thereby realizing the detachable separation of the mechanical claw operating component (14) and the visual sensing component (12) from the boom tail rod (24); Step S3, manually push the U-shaped sliding rod (33) to slide along the rectangular sliding hole (34) of the fixed long rod (35), so as to cause the warning canvas (32) connected to the U-shaped sliding rod (33) and the U-shaped fixed rod (31) to unfold, and completely cover the folded boom middle connecting rod (22) and the boom tail rod (24); Step S4, reinsert the connecting rod (15) into the boom tail rod (24), and reversely drive the boom middle connecting rod (22) to unfold; push the G-shaped hook (27) to reset the rectangular through hole (16) inserted into the connecting rod (15) through the elastic force of the reset spring (26), and enter the working state after the assembly is fixed.

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