Liftable high-lift excavator in shallow water environment

Abstract

This invention discloses a height-adjustable trestle excavator for shallow water environments, belonging to the field of excavator technology. The height-adjustable trestle excavator for shallow water environments includes an excavator body, comprising a lower body and an upper body. A telescopic tube assembly is provided between the lower and upper bodies. A base is provided at the lower body, and an inner cavity is provided within the base. A lifting assembly for driving the upper body to rise and fall is located within the inner cavity. A protective assembly for floating on the water surface is provided at the base. Balancing components are hinged at the four corners of the protective assembly to the corresponding points of the telescopic tube assembly, providing support for the telescopic tube assembly. Compared with existing technologies, this invention reduces the risk of overturning due to water flow or ground subsidence caused by the increased overall height of the excavator when operating in wading areas, thus balancing flexibility and safety.

Description

Technical Field

[0001] This invention relates to the field of excavator technology, and more specifically, to a raised-leg excavator that can be raised and lowered in shallow water environments. Background Technology

[0002] Construction machinery is now widely used, especially tracked excavators. Currently, most excavators on the market operate on land or in water no deeper than the platform.

[0003] When operating in water-filled areas, a heightening tube is usually installed between the excavator's undercarriage and upper body. Although raising the upper body allows for operation in water-filled areas, the increased overall height of the equipment raises the excavator's center of gravity, making it more susceptible to overturning due to water flow or ground subsidence. Summary of the Invention

[0004] This invention provides a height-adjustable excavator for shallow water environments, which overcomes some or all the defects of the prior art.

[0005] According to the present invention, a height-adjustable excavator for shallow water environments includes an excavator body, which includes a lower body and an upper body. A telescopic tube assembly is provided between the lower body and the upper body. A base is provided at the lower body, and an inner cavity is provided at the base. A lifting assembly for driving the upper body to rise and fall is provided in the inner cavity.

[0006] The base is equipped with a protective component for floating on the water surface. At the four corners of the protective component, there are balancing components that are hinged to the corresponding points of the telescopic tube component. The balancing components are used to support the telescopic tube component.

[0007] This disclosure discloses a height-adjustable excavator for shallow water environments. When operating in water-filled areas, the operator controls the lifting component to raise the upper body at the sliding tube to the required height. As the sliding tube rises, it also raises the second waterproof cloth and the protective component. The rise of the protective component allows the first waterproof cloth to form a protective barrier between the raised lower and upper bodies, preventing water or debris from entering the base and affecting the normal operation of the equipment during water-filled operations.

[0008] After the excavator fully entered the flooded area, it was observed... Figure 6 As shown, when the water level exceeds the base, the first and second waterproof sheets and the airbag cause the airbag to float on the water surface due to the buoyancy of the water. At this time, the airbag provides upward buoyancy to the balancing component, thereby supporting the sliding tube. Compared with the existing technology, this reduces the risk of overturning due to water flow impact or ground subsidence when operating in water-covered areas, which is caused by the increased overall height of the equipment and the higher center of gravity of the excavator. This balances flexibility and safety.

[0009] Preferably, the top wall of the base has an installation groove arranged along the periphery of the inner cavity. The protective component includes a floating plate covering the installation groove, an airbag on the bottom wall of the floating plate, and a first waterproof cloth between the bottom wall of the airbag and the bottom wall of the installation groove. The first waterproof cloth is folded and arranged in the installation groove, wherein the length of the first waterproof cloth is longer than the height of the upper body.

[0010] The above structure allows the first waterproof cloth to be stored in the installation groove when no water wading is required. When water wading is required, the airbag can release the first waterproof cloth when it comes into contact with the water surface, preventing water from flowing into the inner cavity and improving the service life of the equipment.

[0011] Preferably, the outer wall of the base has a downwardly inclined slope, and the bottom wall of the mounting groove has multiple drainage holes.

[0012] The above structure allows water to be drained promptly when it enters the installation tank, preventing water accumulation.

[0013] Preferably, the telescopic tube assembly includes a fixed tube located at the lower body of the vehicle, the fixed tube being telescopically provided with a sliding tube, the balancing assembly including a sleeve rod with one end hinged to the outer wall of the sliding tube, a sliding rod slidably provided at one end of the sleeve rod, the sliding rod being hinged to the top wall of the floating plate, through grooves being formed on both sides of the sleeve rod, and a locking assembly being provided at the sleeve rod for limiting the sliding rod.

[0014] The balancing assembly achieves multi-angle adaptive support through hinged sliding tubes and sleeves, and sliding rods and floating plates, dispersing the lateral forces generated by water flow impact, ground subsidence or equipment tilting, and reducing the risk of overturning.

[0015] By setting the locking components, the length between the sleeve and the slide can be controlled at any time to adapt to different support requirements.

[0016] Preferably, the locking assembly includes hinge seats located on both side walls of the sleeve rod and a sliding member slidably located on the top wall of the sleeve rod. The hinge seats are rotatably provided with a rotating shaft along the thickness direction of the sleeve rod. The sliding rod and the through groove are provided with ratchet sections. The rotating shaft is provided with a pawl that cooperates with the ratchet sections. An extension is formed at one end of the rotating shaft that passes through the hinge seats. The extension is perpendicular to the pawl. The sliding member and the side of the extension are provided with an inwardly recessed rotating groove. The extension is rotatably located in the rotating groove. A cylinder is provided at the sleeve rod. The cylinder is used to drive the sliding member to move along the length direction of the sleeve rod to unlock or lock the locking assembly.

[0017] The sliding member slides along the top wall of the sleeve rod, and its concave rotating groove engages with the extension of the rotating shaft. When the cylinder drives the sliding member to move, the rotating groove compresses the extension, causing the rotating shaft to rotate, thus disengaging the pawl from the tooth groove of the ratchet section and unlocking the device.

[0018] Understandably, the cylinder drives the sliding parts to move via air pressure, and the operator can remotely control the locking or unlocking from inside the cab to adapt to the rapid adjustment needs in complex working conditions such as deep water areas and dangerous areas.

[0019] Specifically, when the terrain of the wading area is uneven and the water level varies, the operator can release the limit on the sliding rod by controlling the cylinder, so that the float and airbag adapt to the water level, and then the cylinder will drive the sliding rod to be limited.

[0020] Understandably, the ratchet section of the slide bar engages with the pawl on the rotating shaft to form a one-way meshing structure, allowing it to extend in one direction when the equipment is raised, thus avoiding damage to the balancing components due to pulling.

[0021] Preferably, the sliding member has a circular hole, and a connecting member is slidably provided in the circular hole. The connecting member has a mounting block located at the telescopic end of the cylinder. The mounting block has a fixing rod that slides with the circular hole, and a stop block is provided at one end of the fixing rod that passes through the circular hole.

[0022] The circular hole at the sliding part provides a sliding track for the connector, ensuring that the connector moves stably along the length of the sleeve rod, i.e., the direction of cylinder drive, and avoiding deviation or jamming.

[0023] The stop at the end of the fixed rod limits the sliding stroke of the connector, preventing it from dislodging from the round hole and ensuring stable sliding.

[0024] Preferably, the mounting block is provided with a top rod, the sliding member is provided with a positioning groove on the side corresponding to the mounting block for the top rod to be inserted, and a spring is sleeved on the fixing rod, the spring being located between the mounting block and the sliding member, wherein the length of the positioning groove is longer than the length of the top rod.

[0025] The insertion of the top rod into the positioning groove ensures that the sliding part remains coaxial with the mounting block during movement, avoiding offset or jamming and improving the accuracy of unlocking / locking operations.

[0026] The positioning groove is longer than the push rod, allowing the slider to have a small amount of travel space after the push rod is fully inserted, which can accommodate the compression and reset of the spring and provide space for the pawl to release in one direction.

[0027] Preferably, a top plate is provided on the outer wall of the sliding tube, and a second waterproof cloth is provided between the top plate and the floating plate.

[0028] The second waterproof fabric connects the top plate and the floating plate, and together with the first waterproof fabric, forms a closed waterproof area inside the cavity to prevent water, mud, sand or debris from entering the cavity.

[0029] Preferably, the lifting assembly is located between the inner cavity and the top plate. The lifting assembly includes two scissor braces located in the inner cavity. The two scissor braces are symmetrically arranged along the fixed tube. The scissor braces have a fixed end and a movable end. The movable end is located on the side close to the fixed tube. The movable end is located at the extension end of the hydraulic cylinder. The scissor braces are used to drive the top plate to lift.

[0030] Two scissor braces are symmetrically installed inside the cavity along the fixed tube to ensure uniform force distribution during lifting and lowering, thus avoiding structural deformation or jamming caused by eccentric loading.

[0031] The hydraulic cylinder is built into the inner cavity, and the scissor brace folds and retracts during the lifting and lowering process, reducing the storage volume of the equipment. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a raised-leg excavator that can be raised and lowered in shallow water.

[0033] Figure 2 This is a side view sectional diagram of the protective components of a height-adjustable excavator for shallow water environments.

[0034] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0035] Figure 4 This is a schematic diagram of the balancing component structure of a raised-leg excavator that can be raised and lowered in shallow water.

[0036] Figure 5 This is a schematic cross-sectional view of the balancing component of a height-adjustable excavator for shallow water environments.

[0037] Figure 6 This is a schematic diagram of the balance support component of a height-adjustable excavator that can be raised and lowered in shallow water.

[0038] Figure 7 This is a cross-sectional schematic diagram of the lifting component of a raised-leg excavator that can be raised and lowered in shallow water.

[0039] 100. Excavator body; 110. Lower body; 120. Telescopic tube assembly; 130. Upper body; 140. Base; 150. Protective components; 160. Balancing components; 210. Inner cavity; 220. Lifting components; 310. Mounting slot; 320. Float plate; 321. Airbag; 330. First waterproof cloth; 340. Inclined surface; 410. Sleeve rod; 420. Sliding rod; 430. Through groove; 440. Ratchet section; 450. Hinged seat; 460, pivot; 461, pawl; 462, extension; 470, sliding part; 471, rotating groove; 480, connector; 490, cylinder; 510, mounting block; 520, fixing rod; 530, stop block; 540, top rod; 550, spring; 560, positioning groove; 610, top plate; 620, second waterproof cloth; 710, fixing tube; 720, sliding tube; 730, hydraulic cylinder; 740, scissor brace. Detailed Implementation

[0040] To further understand the content of this invention, the invention will be described in detail with reference to the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention.

[0041] Example 1

[0042] Please see Figures 1-7 This embodiment provides a height-adjustable excavator for shallow water environments, which includes an excavator body 100, an excavator body 100 including a lower body 110 and an upper body 130, a telescopic tube assembly 120 between the lower body 110 and the upper body 130, a base 140 at the lower body 110, an inner cavity 210 at the base 140, and a lifting assembly 220 for driving the upper body 130 to rise and fall inside the inner cavity 210.

[0043] The base 140 is provided with a protective component 150 for floating on the water surface. The four corners of the protective component 150 are hinged with a balancing component 160 corresponding to the telescopic tube assembly 120. The balancing component 160 is used to support the telescopic tube assembly 120.

[0044] This disclosure discloses a height-adjustable excavator for shallow water environments. When operating in wading areas, the operator controls the lifting component 220 to raise the upper body 130 at the sliding tube 720 to the required height. As the sliding tube 720 rises, it also raises the second waterproof cloth 620 and the protective component 150. The floating plate 320 at the protective component 150 rises, thereby allowing the first waterproof cloth 330 to form a protective barrier between the lower body 110 and the upper body 130 after the raising, preventing water or debris from entering the base 140 and affecting the normal operation of the equipment during wading operations.

[0045] After the excavator fully entered the flooded area, it was observed... Figure 6As shown, when the water level exceeds the base 140, due to the installation of the first waterproof cloth 330, the second waterproof cloth 620, and the airbag 321, the airbag 321 floats on the water surface under the action of water buoyancy. At this time, the airbag 321 provides upward buoyancy to the balance component 160, thereby enabling the balance component 160 to support the sliding tube 720. Compared with the prior art, this reduces the risk of overturning due to water flow impact or ground subsidence when operating in water-covered areas, which is caused by the increased overall height of the equipment and the resulting higher center of gravity of the excavator. This balances flexibility and safety.

[0046] In this embodiment, a mounting groove 310 is formed on the top wall of the base 140 along the periphery of the inner cavity 210. The protective component 150 includes a floating plate 320 covering the mounting groove 310. An airbag 321 is provided on the bottom wall of the floating plate 320. A first waterproof cloth 330 is provided between the bottom wall of the airbag 321 and the bottom wall of the mounting groove 310. The first waterproof cloth 330 is folded and arranged in the mounting groove 310. The length of the first waterproof cloth 330 is longer than the height of the upper vehicle body 130.

[0047] With the above structure, the first waterproof cloth 330 can be stored in the installation groove 310 when no water wading operation is required. When water wading operation is required, the airbag 321 can release the first waterproof cloth 330 when it comes into contact with the water surface, which prevents water from flowing into the inner cavity 210 and improves the service life of the equipment.

[0048] In this embodiment, the outer wall of the base 140 is formed with a downwardly inclined surface 340, and the bottom wall of the mounting groove 310 is formed with multiple water seepage holes.

[0049] The above structure allows water to be drained promptly when it enters the mounting groove 310, preventing water accumulation.

[0050] In this embodiment, the telescopic tube assembly 120 includes a fixed tube 710 located at the lower vehicle body 110, and the fixed tube 710 is telescopically provided with a sliding tube 720. The balance assembly 160 includes a sleeve rod 410 with one end hinged to the outer wall of the sliding tube 720, and a slide rod 420 slidably provided at one end of the sleeve rod 410. The slide rod 420 is hinged to the top wall of the floating plate 320. Through grooves 430 are formed on both sides of the sleeve rod 410. A locking assembly is provided at the sleeve rod 410, and the locking assembly is used to limit the slide rod 420.

[0051] The balancing assembly 160 achieves multi-angle adaptive support through the hinge point sliding tube 720 and sleeve rod 410, and the slide rod 420 and floating plate 320, which disperses the lateral forces generated by water flow impact, ground subsidence or equipment tilting, and reduces the risk of overturning.

[0052] By setting the locking component, the length between the sleeve 410 and the slide bar 420 can be controlled at any time to adapt to different support requirements.

[0053] In this embodiment, the locking assembly includes hinge seats 450 located on both side walls of the sleeve rod 410 and a sliding member 470 slidably located on the top wall of the sleeve rod 410. The hinge seats 450 are rotatably provided with a rotating shaft 460 along the thickness direction of the sleeve rod 410. The sliding rod 420 and the through groove 430 are provided with ratchet segments 440 respectively. The rotating shaft 460 is provided with a pawl 461 that cooperates with the ratchet segments 440. An extension member 462 is formed at one end of the rotating shaft 460 that passes through the hinge seats 450. The extension member 462 is perpendicular to the pawl 461. The sliding member 470 and the side corresponding to the extension member 462 are provided with an inwardly recessed rotating groove 471. The extension member 462 is rotatably located in the rotating groove 471. The sleeve rod 410 is provided with a cylinder 490. The cylinder 490 is used to drive the sliding member 470 to move along the length direction of the sleeve rod 410 to unlock or lock the locking assembly.

[0054] The sliding member 470 slides along the top wall of the sleeve rod 410, and its concave rotating groove 471 engages with the extension 462 of the rotating shaft 460. When the cylinder 490 drives the sliding member 470 to move, the rotating groove 471 compresses the extension 462, causing the rotating shaft 460 to rotate, so that the pawl 461 disengages from the tooth groove of the ratchet section 440, thereby unlocking.

[0055] Understandably, cylinder 490 moves sliding component 470 via air pressure, and the operator can remotely control locking or unlocking from inside the cab to adapt to the need for rapid adjustment in complex working conditions such as deep water areas and dangerous areas.

[0056] Specifically, when the terrain of the wading area is uneven and the water level is not uniform, the operator can release the limit on the slide bar 420 by controlling the cylinder 490, so that the float plate 320 and the air bag 321 adapt to the water level and then be driven by the cylinder 490 to limit the slide bar 420.

[0057] Understandably, the ratchet section 440 of the slide bar 420 engages with the pawl 461 on the rotating shaft 460 to form a one-way meshing structure, which allows the equipment to extend in one direction when the height is increased, thus avoiding pulling and damaging the balance component 160.

[0058] In this embodiment, a circular hole is provided at the sliding member 470, and a connector 480 is slidably provided in the circular hole. The connector 480 has a mounting block 510 provided at the telescopic end of the cylinder 490. A fixing rod 520 that slides with the circular hole is provided at the mounting block 510. A stop block 530 is provided at one end of the fixing rod 520 that passes through the circular hole.

[0059] The circular hole at the slider 470 provides a sliding track for the connector 480, ensuring that the connector 480 moves stably along the length of the sleeve rod 410, i.e., the driving direction of the cylinder 490, and avoiding deviation or jamming.

[0060] The stop 530 at the end of the fixed rod 520 restricts the sliding stroke of the connector 480, preventing it from dislodging from the round hole and ensuring stable sliding.

[0061] In this embodiment, a top rod 540 is provided at the mounting block 510, and a positioning groove 560 for the top rod 540 to be inserted is provided on the side of the sliding member 470 corresponding to the mounting block 510. A spring 550 is sleeved at the fixing rod 520 and is located between the mounting block 510 and the sliding member 470. The length of the positioning groove 560 is longer than the length of the top rod 540.

[0062] The insertion of the top rod 540 into the positioning groove 560 ensures that the slider 470 remains coaxial with the mounting block 510 during movement, avoiding offset or jamming and improving the accuracy of unlocking / locking operations.

[0063] The positioning groove 560 is longer than the push rod 540, allowing the slider 470 to still have a small travel space after the push rod 540 is fully inserted, which can accommodate the compression and reset of the spring 550 and provide space for the pawl 461 to release unidirectionally.

[0064] In this embodiment, a top plate 610 is provided on the outer wall of the sliding tube 720, and a second waterproof cloth 620 is provided between the top plate 610 and the floating plate 320.

[0065] The second waterproof cloth 620 connects the top plate 610 and the floating plate 320. Together with the first waterproof cloth 330, it forms a closed waterproof area inside the inner cavity 210 to prevent water, mud, sand or debris from entering the inner cavity 210.

[0066] In this embodiment, the lifting assembly 220 is disposed between the inner cavity 210 and the top plate 610. The lifting assembly 220 includes two scissor braces 740 disposed in the inner cavity 210. The two scissor braces 740 are symmetrically arranged along the fixed tube 710. The scissor braces 740 have a fixed end and a movable end. The movable end is disposed on the side close to the fixed tube 710. The movable end is disposed at the extension end of the hydraulic cylinder 730. The scissor braces 740 are used to drive the top plate 610 to rise and fall.

[0067] Two scissor braces 740 are symmetrically arranged in the inner cavity 210 along the fixed tube 710 to ensure uniform force during the lifting process and avoid structural deformation or jamming caused by eccentric loading.

[0068] The hydraulic cylinder 730 is built into the inner cavity 210, and the scissor brace 740 folds and retracts during the lifting process, reducing the storage volume of the equipment.

[0069] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0070] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A height-adjustable excavator for shallow water environments, characterized in that: The excavator body (100) includes a lower body (110) and an upper body (130). A telescopic tube assembly (120) is provided between the lower body (110) and the upper body (130). A base (140) is provided at the lower body (110). An inner cavity (210) is provided at the base (140). A lifting assembly (220) for driving the upper body (130) to lift is provided in the inner cavity (210). The base (140) is provided with a protective component (150) for floating on the water surface. The four corners of the protective component (150) are all hinged with a balance component (160) corresponding to the telescopic tube assembly (120). The balance component (160) is used to support the telescopic tube assembly (120). The top wall of the base (140) has an installation groove (310) arranged around the periphery of the inner cavity (210). The protective component (150) includes a floating plate (320) covering the installation groove (310). An airbag (321) is provided on the bottom wall of the floating plate (320). A first waterproof cloth (330) is provided between the bottom wall of the airbag (321) and the bottom wall of the installation groove (310). The length of the first waterproof cloth (330) is longer than the height of the upper body (130). The telescopic tube assembly (120) includes a fixed tube (710) located at the lower body (110), and the fixed tube (710) is telescopically provided with a sliding tube (720). The balance assembly (160) includes a sleeve rod (410) with one end hinged to the outer wall of the sliding tube (720), and a slide rod (420) slidably provided at one end of the sleeve rod (410). The slide rod (420) is hinged to the top wall of the floating plate (320). A through groove (430) is formed on both sides of the sleeve rod (410). A locking assembly is provided at the sleeve rod (410) to limit the slide rod (420). The locking assembly includes hinge seats (450) located on both side walls of the sleeve (410) and a sliding member (470) slidably located on the top wall of the sleeve (410). The hinge seats (450) are rotatably provided with a pivot (460) along the thickness direction of the sleeve (410). Racket sections (440) are provided at corresponding locations on the slide rod (420) and the through groove (430). A pawl (461) that engages with the ratchet section (440) is provided at the pivot (460). The pivot (460) passes through the hinge seat (450). An extension (462) is formed at one end, wherein the extension (462) is perpendicular to the pawl (461), and a recessed rotating groove (471) is formed on the side of the sliding member (470) corresponding to the extension (462). The extension (462) is rotatably disposed in the rotating groove (471). A cylinder (490) is provided at the sleeve rod (410). The cylinder (490) is used to drive the sliding member (470) to move along the length direction of the sleeve rod (410) to unlock or lock the drive locking component.

2. The stilt excavator capable of being raised and lowered in shallow water as described in claim 1, characterized in that: The outer wall of the base (140) has a downwardly inclined slope (340), and the bottom wall of the mounting groove (310) has multiple water seepage holes.

3. The stilt excavator capable of being raised and lowered in shallow water as described in claim 1, characterized in that: A circular hole is provided at the sliding member (470), and a connecting member (480) is slidably provided in the circular hole. The connecting member (480) has a mounting block (510) located at the telescopic end of the cylinder (490). A fixing rod (520) is provided at the mounting block (510) and slides with the circular hole. A stop block (530) is provided at one end of the fixing rod (520) that passes through the circular hole.

4. The stilt excavator capable of being raised and lowered in shallow water as described in claim 3, characterized in that: A top rod (540) is provided at the mounting block (510). A positioning groove (560) for the top rod (540) to be inserted is provided on the side of the sliding member (470) corresponding to the mounting block (510). A spring (550) is sleeved at the fixing rod (520). The spring (550) is located between the mounting block (510) and the sliding member (470). The length of the positioning groove (560) is longer than the length of the top rod (540).

5. A height-adjustable excavator for shallow water environments according to claim 1, characterized in that: A top plate (610) is provided on the outer wall of the sliding tube (720), and a second waterproof cloth (620) is provided between the top plate (610) and the floating plate (320).

6. A height-adjustable excavator for shallow water environments according to claim 5, characterized in that: The lifting assembly (220) is located between the inner cavity (210) and the top plate (610). The lifting assembly (220) includes two hydraulic cylinders (730) located in the inner cavity (210). The two hydraulic cylinders (730) are symmetrically arranged along the fixed tube (710). The hydraulic cylinder (730) has a fixed end and a movable end. The movable end is located on the side close to the fixed tube (710). A scissor brace (740) is provided in the inner cavity (210). The movable end is located at the extension end of the scissor brace (740). The scissor brace (740) is used to drive the top plate (610) to lift.

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