CN210263188U - Excavator arm for pipeline installation - Google Patents

Excavator arm for pipeline installation Download PDF

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Publication number
CN210263188U
CN210263188U CN201920805996.1U CN201920805996U CN210263188U CN 210263188 U CN210263188 U CN 210263188U CN 201920805996 U CN201920805996 U CN 201920805996U CN 210263188 U CN210263188 U CN 210263188U
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China
Prior art keywords
connecting plate
clamping plate
iii
pipeline
splint
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CN201920805996.1U
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Chinese (zh)
Inventor
唐洪应
孟凡朋
李宗宗
曾金
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Sinohydro Bureau 10 Co Ltd
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Sinohydro Bureau 10 Co Ltd
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Abstract

The utility model discloses an excavator arm for pipeline installation, which comprises a working head for clamping a pipeline and a rotating arm structure for providing rotating power for the omnibearing rotation of the working head; the rotating arm structure is connected with the working head. The excavator arm for pipeline installation of the utility model can effectively fix and clamp the pipeline through the action of the working head; the shaking of the pipeline in the operation process is avoided, the pipeline can be stably placed into a manufactured position, and the operation precision is improved; the contact area between the pipe and the working head can be enlarged through the action of the working head, and the pipe cannot be abraded due to fixed clamping; through the collocation of the rotating arm structure and the working head, the pipeline can make various actions, and the pipeline is convenient to carry and mount.

Description

Excavator arm for pipeline installation
Technical Field
The utility model belongs to the technical field of mechanical construction, concretely relates to excavator arm for piping erection.
Background
In the prior art, a mode of an excavator and a steel rope is adopted for hoisting a pipeline, the steel rope penetrates through the pipeline, and then the steel rope is bound on an excavating bucket of the excavator, so that the pipeline can be transferred; however, in the actual construction process, the following problems occur:
1. the pipeline can shake along with the swinging of the excavator arm, and the accuracy of pipeline installation can be influenced;
2. the steel rope can abrade the pipeline, and the pipeline can be even damaged due to small stress points acting on the pipeline;
3. the steel rope can further abrade the pipeline due to the shaking of the pipeline in the operation process;
in order to solve the above problems, an excavator arm for pipeline installation has been developed.
Disclosure of Invention
The utility model aims at providing an excavator arm for piping erection in order to solve above-mentioned problem just.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
excavator arm for pipeline installation includes:
the working head is used for clamping the pipeline;
the rotating arm structure is used for providing rotating power for the omnibearing rotation of the working head; the rotating arm structure is connected with the working head.
Specifically, the boom structure includes:
moving the rotating body;
a movable arm I; the first end of the movable arm I is rotatably connected with the movable rotating body through a rotating pin shaft assembly II;
an oil cylinder I;
a piston rod I; the oil cylinder I and the piston rod I form a hydraulic assembly, and the oil cylinder I is rotatably connected with the movable rotating main body through a rotating pin shaft assembly I; the extending end of the piston rod I is rotatably connected with the side wall of the middle end of the movable arm I through a rotating pin shaft assembly III;
an oil cylinder II;
a piston rod II; the oil cylinder II is rotatably connected with the upper part of the middle end of the movable arm I through a rotating pin shaft assembly IV; the extending end of the piston rod II is rotatably connected with the first end of the movable arm II through a rotating pin shaft assembly V;
a movable arm II; the second end of the movable arm I is rotatably connected with the side wall of the first end of the movable arm II through a rotating pin shaft assembly VI;
a connecting rod;
a rocker;
an oil cylinder III;
a piston rod III; the oil cylinder III and the piston rod III form a hydraulic assembly, and the oil cylinder III is rotatably connected with the upper part of the first end of the movable arm II through a rotating pin shaft assembly VII; the extending end of the piston rod III, the first end of the connecting rod and the first end of the rocker are rotatably connected through a rotating pin shaft assembly VIII;
the second end of the rocker is rotatably connected with the second end of the movable arm II close to the inner position through a rotating pin shaft component IX;
the second end of the connecting rod is rotatably connected with the first end of the upper part of the working head through a rotating pin assembly XI;
the second end of the movable arm II is rotatably connected with the second end of the upper part of the working head through a rotating pin shaft component X.
Specifically, the working head includes:
connecting blocks; the bottom of the connecting block is provided with a T-shaped groove with two through ends, and the width of the notch at the two ends of the T-shaped groove is smaller than the internal width of the T-shaped groove;
an upper splint I;
an upper splint II; the first end of the upper clamping plate I and the first end of the upper clamping plate II are slidably arranged in the T-shaped groove, and the second end of the upper clamping plate I and the second end of the upper clamping plate II respectively extend out of notches at two ends of the T-shaped groove;
a lower splint I;
a lower splint II; three sliding holes are arranged in the lower splint I and the lower splint II,
three connecting rods; two ends of each connecting rod are correspondingly and slidably arranged in sliding holes in the lower clamping plate I and the lower clamping plate II;
the lower clamping plate I and the lower clamping plate II are connected through a connecting rod and then penetrate through the interior of the pipeline; the first end part of the pipeline is clamped between an upper clamping plate I and a lower clamping plate I, and the upper clamping plate I and the lower clamping plate I are tightened through a bolt assembly; the second end portion of the pipeline is clamped between the upper clamping plate II and the lower clamping plate II, and the upper clamping plate II and the lower clamping plate II are tightened through the bolt assembly.
Specifically, upper plate I, upper plate II all include:
a connecting plate I; the connecting plate I is of a T-shaped structure, and the size of the cross section of the connecting plate I is matched with the size of notches at two ends of the T-shaped groove;
two connecting plates II; the two connecting plates II are respectively connected to two side walls of the connecting plate I, and the size of the two connecting plates II combined with the connecting plate I is matched with the internal size of the T-shaped groove;
a connecting plate III; the connecting plate III is arc-shaped, the connecting plate III protrudes upwards, the middle part of the top surface of the connecting plate III is connected with the bottom of the connecting plate I, and the connecting plate III is always arranged outside the connecting block when the upper clamping plate I and the upper clamping plate II slide in the connecting block;
a soft cushion I; the cushion I is arc-shaped, protrudes upwards and is connected to the bottom of the connecting plate III and clings to the outer surface of the pipeline during working;
a handle; the handle is arranged at the outer end of the connecting plate I;
two groups of vertical bolt holes are formed in the cushion I and penetrate through the connecting plate III.
Specifically, lower plate I, lower plate II all include:
a connecting plate IV; the connecting plate IV is arc-shaped and protrudes upwards;
a soft cushion II; the soft cushion II is arc-shaped, protrudes upwards and is connected to the bottom of the connecting plate IV and is tightly attached to the inner surface of the pipeline during working;
a handle; the handle is arranged on the outer end of the connecting plate IV;
two groups of vertical bolt holes are formed through the cushion II and the connecting plate IV, and when the connecting device works, the two groups of bolt assemblies sequentially penetrate through the bolt holes in the connecting plate III, the bolt holes in the cushion I, the bolt holes in the cushion II and the bolt holes in the connecting plate IV from top to bottom and are connected in a tensioned manner;
the diameter of the sliding hole in the connecting plate IV is larger than that of the end part of the connecting plate IV;
the connecting rod includes pole I and two poles II, and II diameters of pole match with the slide opening diameter that is located the connecting plate IV, and I diameters of pole match with the slide opening diameter that is located the connecting plate IV tip.
Specifically, the longest distance between the upper splint I and the upper splint II is L1, the longest distance between the lower splint I and the lower splint II is L2, and L1 is equal to L2; the length of the upper splint I, the length of the upper splint II, the length of the lower splint I and the length of the lower splint II are the same.
The beneficial effects of the utility model reside in that:
the utility model discloses an excavator arm for pipeline installation;
1. the pipeline can be effectively fixed and clamped through the action of the working head; the shaking of the pipeline in the operation process is avoided, the pipeline can be stably placed into a manufactured position, and the operation precision is improved;
2. the contact area between the pipe and the working head can be enlarged through the action of the working head, and the pipe cannot be abraded due to fixed clamping;
3. through the collocation of the rotating arm structure and the working head, the pipeline can make various actions, and the pipeline is convenient to carry and mount.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a working head of the present invention;
fig. 3 is a schematic structural view of an upper middle splint i of the present invention;
FIG. 4 is a schematic diagram showing a comparative structure of a section I and a section II in the present invention;
FIG. 5 is a schematic view of the connection structure of the lower splint I and the lower splint II;
FIG. 6 is a schematic structural view of a connecting rod of the present invention;
fig. 7 is a schematic diagram of a comparative structure of a middle section iii and a section iv of the present invention.
In the figure: 1-moving the rotating body; 11-oil cylinder I; 12-a piston rod I; 13-rotating the pin shaft assembly i; 14-rotating the pin shaft assembly ii; 15-rotating the pin shaft assembly iii; 2-a movable arm I; 21-oil cylinder II; 22-piston rod II; 23-rotating the pin shaft assembly iv; 24-rotation pin shaft assembly v; 25-rotating the pin shaft assembly vi; 3-movable arm II; 31-oil cylinder III; 32-a piston rod III; 33-a connecting rod; 34-a rocker; 35-rotating the pin shaft assembly VII; 36-rotating the pin shaft assembly viii; 37-rotating the pin shaft assembly ix; 38-rotating the pin shaft assembly X; 39-rotation pin shaft assembly XI; 4-working head; 41-connecting block; 411-section I; 412-section II; 413-connection hole; 42-upper splint I; 421-connecting plate I; 422-connecting plate II; 423-connecting plate III; 424-cushion i; 425-a handle; 426-bolt holes; 43-upper splint II; 44-lower splint I; 441-a connecting plate IV; 442-cushion II; 45-lower splint II; 451-section III; 452-section IV; 46-a bolt assembly; 47-a connecting rod; 471-bar I; 472-bar ii; 5-pipeline.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
example 1, as shown in figure 1;
excavator arm for pipeline installation includes:
a working head 4 for clamping the pipe 5;
a rotating arm structure for providing rotating power for the omnibearing rotation of the working head 4; the rotating arm structure is connected with the working head 4.
The working head 4 in the embodiment can be formed into various structures capable of clamping the pipeline 5, including special shapes;
example 2, as shown in figure 1;
this example differs from example 1 in that: the rocking arm structure includes:
moving the rotating body 1;
a movable arm I2; the first end of the movable arm I2 rotates with the movable rotating body 1 through the rotating pin shaft assembly II 14
Connecting;
an oil cylinder I11;
a piston rod I47112; the oil cylinder I11 and the piston rod I47112 form a hydraulic assembly, and the oil cylinder I11 is rotatably connected with the movable rotating body 1 through a rotating pin shaft assembly I13; the extending end of the piston rod I47112 is rotatably connected with the side wall of the middle end of the movable arm I2 through a rotating pin shaft assembly III 15;
an oil cylinder II 21;
a piston rod II 47222; the oil cylinder II 21 and the piston rod II 47222 form a hydraulic assembly, and the oil cylinder II 21 is rotatably connected with the upper part of the middle end of the movable arm I2 through a rotating pin shaft assembly IV 23; the extending end of the piston rod II 47222 is rotatably connected with the first end of the movable arm II 3 through a rotating pin shaft assembly V24;
a movable arm II 3; the second end of the movable arm I2 is rotatably connected with the side wall of the first end of the movable arm II 3 through a rotating pin shaft assembly VI 25;
a connecting rod 33;
a rocker 34;
an oil cylinder III 31;
a piston rod III 32; the oil cylinder III 31 and the piston rod III 32 form a hydraulic assembly, and the oil cylinder III 31 is rotatably connected with the upper part of the first end of the movable arm II 3 through a rotating pin shaft assembly VII 35; the extending end of the piston rod III 32, the first end of the connecting rod 33 and the first end of the rocker 34 are rotatably connected through a rotating pin shaft assembly VIII 36;
the second end of the rocker 34 is rotatably connected with the second end of the movable arm II 3 at an inner position through a rotating pin shaft component IX 37;
the second end of the connecting rod 33 is rotatably connected with the first upper end of the working head 4 through a rotating pin shaft component XI 39;
the second end of the boom ii 3 is pivotally connected to the upper second end of the working head 4 by a pivot pin assembly x 38.
The rotating arm structure in the embodiment adopts the rotating arm structure of the traditional excavator, and the working principle and the detailed structure of the rotating arm structure are not described;
example 3, as shown in fig. 2;
this example differs from example 1 or 2 in that: the working head 4 includes:
a connecting block 41; a T-shaped groove with two through ends is formed at the bottom of the connecting block 41, and the width of the notch at the two ends of the T-shaped groove (the section of the notch is a section i 411) is smaller than the internal width of the T-shaped groove (the section of the notch is a section ii 412), as shown in fig. 4;
an upper splint I42;
an upper splint II 43; the first end of the upper clamping plate I42 and the first end of the upper clamping plate II 43 are slidably mounted in the T-shaped groove, and the second end of the upper clamping plate I42 and the second end of the upper clamping plate II 43 respectively extend out of notches at two ends of the T-shaped groove;
a lower splint I44;
a lower splint II 45; three sliding holes are arranged in the lower splint I44 and the lower splint II 45,
three connecting rods 47; two ends of each connecting rod 47 are correspondingly and slidably arranged in sliding holes in the lower clamping plate I44 and the lower clamping plate II 45;
the lower clamping plate I44 and the lower clamping plate II 45 are connected through a connecting rod 47 and then penetrate through the interior of the pipeline 5; the first end portion of the pipe 5 is clamped between an upper clamp plate I42 and a lower clamp plate I44, and the upper clamp plate I42 and the lower clamp plate I44 are tightened through a bolt assembly 46; the second end portion of the pipe 5 is clamped between an upper clamp ii 43 and a lower clamp ii 45, the upper clamp ii 43 and the lower clamp ii 45 being tightened by a bolt assembly 46.
In this embodiment, the top of the connecting block 41 is provided with two connecting holes 413 which are parallel to each other, and the two connecting holes 413 are matched with the rotating pin shaft assembly x 38 and the rotating pin shaft assembly xi 39 to complete the connection of the connecting block 41 with the movable arm ii 3 and the connecting rod 33 respectively; so that the rotation arm structure can control the rotation of the connecting block 41;
example 4, as shown in fig. 3;
this example differs from example 3 in that: the upper splint I42 and the upper splint II 43 both comprise:
a connecting plate I421; the connecting plate I421 is of a T-shaped structure, and the size of the cross section of the connecting plate I421 is matched with the size of notches at two ends of the T-shaped groove;
two connecting plates II 422; the two connecting plates II 422 are respectively connected to two side walls of the connecting plate I421, and the size of the combination of the two connecting plates II 422 and the connecting plate I421 is matched with the internal size of the T-shaped groove;
a connecting plate III 423; the connecting plate III 423 is arc-shaped, the connecting plate III 423 protrudes upwards, the middle of the top surface of the connecting plate III 423 is connected with the bottom of the connecting plate I421, and the connecting plate III 423 is always arranged outside the connecting block 41 when the upper clamping plate I42 and the upper clamping plate II 43 slide in the connecting block 41;
a cushion I424; the cushion I424 is arc-shaped, the cushion I424 protrudes upwards, and the cushion I424 is connected to the bottom of the connecting plate III 423 and is tightly attached to the outer surface of the pipeline 5 during working;
a handle 425; a handle 425 is arranged at the outer end of the connecting plate I421;
two groups of vertical bolt holes 426 are formed through the connecting plate III 423 and the cushion I424.
Example 5, as shown in fig. 5, 6, 7;
this example differs from example 4 in that: lower splint I44, lower splint II 45 all include:
a connecting plate IV 441; the connecting plate IV 441 is arc-shaped, and the connecting plate IV 441 protrudes upwards;
a cushion II 442; the soft cushion II 442 is arc-shaped, the soft cushion II 442 protrudes upwards, and the soft cushion II 442 is connected to the bottom of the connecting plate IV 441 and is tightly attached to the inner surface of the pipeline 5 during working;
a handle 425; the handle 425 is arranged on the outer end of the connecting plate IV 441;
two groups of vertical bolt holes 426 are formed through the cushion II 442 and the connecting plate IV 441, and when the connecting plate works, the two groups of bolt assemblies 46 sequentially penetrate through the bolt holes 426 on the connecting plate III 423, the bolt holes 426 on the cushion I424, the bolt holes 426 on the cushion II 442 and the bolt holes 426 on the connecting plate IV 441 from top to bottom and are connected in a tensioned mode;
the diameter of the sliding hole in the connecting plate IV 441 is larger than that of the sliding hole at the end of the connecting plate IV 441;
the connecting rod 47 comprises a rod I471 and two rods II 472, the diameter of the rod II 472 is matched with the diameter of a sliding hole (the section of which is IV 452) in the connecting plate IV 441, the diameter of the rod I471 is matched with the diameter of a sliding hole (the section of which is III 451) at the end part of the connecting plate IV 441, and the connecting rod I471 is shown in figure 7.
Example 6;
this example differs from example 5 in that: the longest distance between the upper clamp I42 and the upper clamp II 43 is L1, the longest distance between the lower clamp I44 and the lower clamp II 45 is L2, and L1 is equal to L2; the length of the upper splint I42, the length of the upper splint II 43, the length of the lower splint I44 and the length of the lower splint II 45 are the same.
Cushion I and cushion II are rubber in this application and make.
The working heads 4 with different lengths and specifications can be selected to adapt to pipelines 5 with different lengths;
when the pipeline connecting device works, the distance between the upper clamping plate I42 and the upper clamping plate II 43 and the distance between the lower clamping plate I44 and the lower clamping plate II 45 are adjusted according to the length of the pipeline 5, so that the length of the pipeline connecting device is longer than that of the pipeline 5;
the operation of adjusting the distance between the upper clamping plate I42 and the upper clamping plate II 43 specifically comprises the following steps: pulling the handle 425 to enable the connecting plate I421 and the connecting plate II 422 to extend out of two ends of the connecting block 41 to slide in the T-shaped groove, and enabling the connecting plate III 423 to slide along with the T-shaped groove until the combined length of the two connecting plates III 423 exceeds the length of the pipeline 5; the connecting plate II 422 has a limiting effect;
the operation of specifically adjusting the interval between lower splint I44 and lower splint II 45 is: when the handle 425 is pulled, the rod II 472 slides in the sliding hole in the connecting plate IV 441, and the rod I471 slides in the sliding hole at the end of the connecting plate IV 441, so that the combined length of the two connecting plates IV 441 exceeds the length of the pipeline 5; rod II 472 also plays a limiting role.
When the pipeline 5 is fixed, most of the cushion II 442 of the lower clamping plate is in contact with the inner wall of the pipeline 5, most of the cushion I424 of the upper clamping plate is in contact with the outer wall of the pipeline 5, and then the upper clamping plate I42 and the lower clamping plate I44 are locked through the two bolt assemblies 46, and the upper clamping plate II 43 and the lower clamping plate II 45 are locked through the two bolt assemblies 46, so that the pipeline 5 is fixed;
when the pipeline 5 is fixed, the rotating arm structure can be used for moving the working head 4 and the pipeline 5 clamped by the working head. When the pipeline 5 is installed in place, the connections are opened in sequence and separated from the pipeline 5.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. Excavator arm for piping erection, its characterized in that includes:
the working head is used for clamping the pipeline;
the rotating arm structure is used for providing rotating power for the omnibearing rotation of the working head; the rotating arm structure is connected with the working head.
2. The excavator arm for pipe installation of claim 1 wherein the boom structure comprises:
moving the rotating body;
a movable arm I; the first end of the movable arm I is rotatably connected with the movable rotating body through a rotating pin shaft assembly II;
an oil cylinder I;
a piston rod I; the oil cylinder I and the piston rod I form a hydraulic assembly, and the oil cylinder I is rotatably connected with the movable rotating main body through a rotating pin shaft assembly I; the extending end of the piston rod I is rotatably connected with the side wall of the middle end of the movable arm I through a rotating pin shaft assembly III;
an oil cylinder II;
a piston rod II; the oil cylinder II is rotatably connected with the upper part of the middle end of the movable arm I through a rotating pin shaft assembly IV; the extending end of the piston rod II is rotatably connected with the first end of the movable arm II through a rotating pin shaft assembly V;
a movable arm II; the second end of the movable arm I is rotatably connected with the side wall of the first end of the movable arm II through a rotating pin shaft assembly VI;
a connecting rod;
a rocker;
an oil cylinder III;
a piston rod III; the oil cylinder III and the piston rod III form a hydraulic assembly, and the oil cylinder III is rotatably connected with the upper part of the first end of the movable arm II through a rotating pin shaft assembly VII; the extending end of the piston rod III, the first end of the connecting rod and the first end of the rocker are rotatably connected through a rotating pin shaft assembly VIII;
the second end of the rocker is rotatably connected with the second end of the movable arm II close to the inner position through a rotating pin shaft component IX;
the second end of the connecting rod is rotatably connected with the first end of the upper part of the working head through a rotating pin assembly XI;
the second end of the movable arm II is rotatably connected with the second end of the upper part of the working head through a rotating pin shaft component X.
3. The excavator arm for pipe installation according to claim 1 or 2, wherein the working head comprises:
connecting blocks; the bottom of the connecting block is provided with a T-shaped groove with two through ends, and the width of the notch at the two ends of the T-shaped groove is smaller than the internal width of the T-shaped groove;
an upper splint I;
an upper splint II; the first end of the upper clamping plate I and the first end of the upper clamping plate II are slidably arranged in the T-shaped groove, and the second end of the upper clamping plate I and the second end of the upper clamping plate II respectively extend out of notches at two ends of the T-shaped groove;
a lower splint I;
a lower splint II; three sliding holes are arranged in the lower splint I and the lower splint II,
three connecting rods; two ends of each connecting rod are correspondingly and slidably arranged in sliding holes in the lower clamping plate I and the lower clamping plate II;
the lower clamping plate I and the lower clamping plate II are connected through a connecting rod and then penetrate through the interior of the pipeline; the first end part of the pipeline is clamped between an upper clamping plate I and a lower clamping plate I, and the upper clamping plate I and the lower clamping plate I are tightened through a bolt assembly; the second end portion of the pipeline is clamped between the upper clamping plate II and the lower clamping plate II, and the upper clamping plate II and the lower clamping plate II are tightened through the bolt assembly.
4. The excavator arm for pipe installation of claim 3, wherein each of the upper clamp plates I and II comprises:
a connecting plate I; the connecting plate I is of a T-shaped structure, and the size of the cross section of the connecting plate I is matched with the size of notches at two ends of the T-shaped groove;
two connecting plates II; the two connecting plates II are respectively connected to two side walls of the connecting plate I, and the size of the two connecting plates II combined with the connecting plate I is matched with the internal size of the T-shaped groove;
a connecting plate III; the connecting plate III is arc-shaped, the connecting plate III protrudes upwards, the middle part of the top surface of the connecting plate III is connected with the bottom of the connecting plate I, and the connecting plate III is always arranged outside the connecting block when the upper clamping plate I and the upper clamping plate II slide in the connecting block;
a soft cushion I; the cushion I is arc-shaped, protrudes upwards and is connected to the bottom of the connecting plate III and clings to the outer surface of the pipeline during working;
a handle; the handle is arranged at the outer end of the connecting plate I;
two groups of vertical bolt holes are formed in the cushion I and penetrate through the connecting plate III.
5. The excavator arm for pipe installation of claim 4, wherein each of the lower clamp plates I and II comprises:
a connecting plate IV; the connecting plate IV is arc-shaped and protrudes upwards;
a soft cushion II; the soft cushion II is arc-shaped, protrudes upwards and is connected to the bottom of the connecting plate IV and is tightly attached to the inner surface of the pipeline during working;
a handle; the handle is arranged on the outer end of the connecting plate IV;
two groups of vertical bolt holes are formed through the cushion II and the connecting plate IV, and when the connecting device works, the two groups of bolt assemblies sequentially penetrate through the bolt holes in the connecting plate III, the bolt holes in the cushion I, the bolt holes in the cushion II and the bolt holes in the connecting plate IV from top to bottom and are connected in a tensioned manner;
the diameter of the sliding hole in the connecting plate IV is larger than that of the end part of the connecting plate IV;
the connecting rod includes pole I and two poles II, and II diameters of pole match with the slide opening diameter that is located the connecting plate IV, and I diameters of pole match with the slide opening diameter that is located the connecting plate IV tip.
6. The excavator arm for pipe installation of claim 5, wherein: the longest distance between the upper splint I and the upper splint II is L1, the longest distance between the lower splint I and the lower splint II is L2, and L1 is equal to L2; the length of the upper splint I, the length of the upper splint II, the length of the lower splint I and the length of the lower splint II are the same.
CN201920805996.1U 2019-05-30 2019-05-30 Excavator arm for pipeline installation Active CN210263188U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920805996.1U CN210263188U (en) 2019-05-30 2019-05-30 Excavator arm for pipeline installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920805996.1U CN210263188U (en) 2019-05-30 2019-05-30 Excavator arm for pipeline installation

Publications (1)

Publication Number Publication Date
CN210263188U true CN210263188U (en) 2020-04-07

Family

ID=70039752

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920805996.1U Active CN210263188U (en) 2019-05-30 2019-05-30 Excavator arm for pipeline installation

Country Status (1)

Country Link
CN (1) CN210263188U (en)

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