A trench excavating device for sewer network construction

Abstract

The utility model discloses a kind of trench excavation devices for sewer network construction, related technical field of drainage construction is disclosed.The utility model includes mounting plate, branch, hydraulic rod, ditching wheel and slag removal assembly, two branch are hingedly connected with the lower part of one side of mounting plate, the top of two branch is all provided with hydraulic rod, the opposite surface between the end of two branch away from mounting plate is rotatably connected with ditching wheel, and the part of ditching wheel away from mounting plate is externally provided with slag removal assembly;The outer periphery of ditching wheel is fixedly provided with multiple rows of ditching teeth one in annular array distribution, and the two end faces of ditching wheel are fixedly provided with multiple rows of ditching teeth two in annular array distribution.The utility model is by being provided with ditching wheel, slag removal assembly, solves the problem that the working efficiency of conventional excavator ditching operation is low, and not applicable to long distance, straight line, homogeneous soil continuous excavation operation, and the problem that the spoil produced after trench excavation can continue to be accumulated in the trench formed by excavation.

Description

Technical Field

[0001] This utility model belongs to the technical field of drainage construction, and in particular relates to a trench excavation device for drainage pipe network construction. Background Technology

[0002] Drainage pipe networks are an important component of urban infrastructure, used to collect, transport, and discharge urban sewage and rainwater, ensuring the normal operation of the urban drainage system. The construction of these drainage pipe networks requires digging corresponding trenches in the ground to facilitate the burial of drainage pipes and other components. These trenches require specific equipment or devices for excavation, but the following drawbacks still exist in actual trench excavation operations: Different trenching methods are generally used for different needs, including manual excavation, excavation with small excavators, excavation with large excavators, etc. In addition to manual excavation, these trenching methods require some engineering machinery with related accessories (such as buckets, hydraulic rammers, breakers, etc.) for excavation. For long-distance, straight trenches with homogeneous soil, continuous excavation is not possible. Using excavators with buckets for excavation is too inefficient, and the sides of the trench excavated by the buckets are too rough. Secondly, in continuous trench excavation operations, a large amount of excavated soil can easily continue to accumulate in the excavated trench, which requires further cleaning and increases the workload. However, trench excavation operations using excavators are inefficient and cannot combine the advantages of both methods. Utility Model Content

[0003] The purpose of this utility model is to provide a trench excavation device for drainage pipe network construction. By setting up trenching wheels and slag removal components, it solves the problems of low work efficiency of conventional excavator trenching operations, unsuitability for continuous excavation operations in long distances, straight lines, and homogeneous soil, and the possibility that the slag generated after trench excavation may continue to accumulate in the excavated trench.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a trench excavation device for drainage pipe network construction, including an installation plate, support arms, hydraulic rods, trenching wheels and slag discharge components. Two support arms are hinged to the lower part of one side of the installation plate. Hydraulic rods are provided above the two support arms. A trenching wheel is rotatably connected between the opposite faces of the two support arms away from the installation plate. A slag discharge component is provided on the part of the trenching wheel away from the installation plate. The outer periphery of the trenching wheel is fixedly provided with multiple rows of trenching teeth arranged in a circular array. Multiple rows of trenching teeth arranged in a circular array are fixedly provided on the two end faces of the trenching wheel, and a cutting blade is provided between each two adjacent rows of trenching teeth. End heads are provided at the center of both ends of the trenching wheel, and a rotating shaft is fixed on the side of the two ends that are far apart. The slag discharge assembly includes a curved slide and an inverted V-shaped hinge plate fixed below the higher end of the slide.

[0005] Furthermore, a second hinge is fixed to the side of the mounting plate near the support arm, and the support arm is connected to the second hinge. A third hinge is fixed to the upper end of the support arm. A first hinge is fixed to the side of the mounting plate above the second hinge. The main body of the hydraulic rod is hinged to the first hinge, and the telescopic part of the hydraulic rod is hinged to the third hinge diagonally below it.

[0006] Furthermore, a motor and a rotary reducer are fixed on the side of any of the outriggers away from the trenching wheel. The output shaft of the motor is connected to the input shaft of the rotary reducer, and the output shaft of the rotary reducer passes through the outrigger and is connected to the shaft.

[0007] Furthermore, a connecting post is fixed to the side of the cutting blade near the trenching wheel, and the cutting blade is fixedly connected to the trenching wheel through the connecting post; the distance between the cutting edge and the trenching wheel is greater than the distance between the two heads of the trenching teeth and the trenching wheel, and less than the thickness of the end.

[0008] Furthermore, a quarter-circle fan-shaped protective cover is provided on the outside of the trenching wheel. The protective cover is fixed to the opposite surfaces of the two support arms, and the protective cover is located in the upper middle part of the trenching wheel near the support arms.

[0009] Furthermore, the lower end of the slide is oriented towards the lower part of the trenching wheel, and bushings are fixed on both sides of the middle part of the slide. Each bushing is rotatably connected to a rotating rod. A cap is fixed at the end of the rotating rod near the folding plate, and a thread is provided at the end of the rotating rod away from the cap to form a threaded section.

[0010] Furthermore, the end of the support arm away from the mounting plate is provided with a threaded groove, and the threaded section at the end of the rotating rod is screwed into a similar threaded groove.

[0011] This utility model has the following beneficial effects: This invention solves the problems of low efficiency and unsuitability for continuous excavation of long distances, straight lines, and homogeneous soil by incorporating a trenching wheel. The mounting plate is installed on the corresponding construction machinery for movement. First, the tilt angle of the outrigger is adjusted via a hydraulic rod to determine the depth to which the trenching wheel can penetrate the ground, i.e., the depth of the excavated trench. Then, the motor operates, driving the shaft to rotate via a rotary reducer, thereby rotating the trenching wheel. As the trenching wheel rotates, the entire device moves forward (…). Figure 1 (The direction of the middle arrow indicates the direction of travel). The first digging tooth on the outer circumference of the trenching wheel continuously contacts the soil, breaking it up and excavating it to form a trench. During this process, the second breaking tooth on the end face of the trenching wheel also breaks the side wall of the trench in the direction of travel. In addition, the rotating cutting blade cuts the side of the trench flat, making it excavated in one go, which is simple and clear.

[0012] This invention solves the problem of slag and soil generated after trench excavation potentially accumulating in the excavated trench by setting up a slag discharge component; the slag and soil excavated by the trenching wheel are discharged as the trenching wheel rotates ( Figure 3 The curved arrow in the middle indicates the direction of the trenching wheel's rotation, and the debris splashes away from the mounting plate. Therefore, the slag discharge assembly is installed in the direction of the splash. The splashed debris rises along the slide and then slides down the slope of the folding plate, accumulating on both sides above the guide trench and not entering the trench. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0014] Figure 1 A perspective view of a trench excavation device for drainage pipe network construction; Figure 2 for Figure 1 A stereoscopic view from another perspective; Figure 3 This is a 3D view after the slag removal components have been removed. Figure 4 This is a structural diagram of a trenching wheel; Figure 5 for Figure 3 A 3D view of the trenching wheel after it has been removed; Figure 6 This is a structural diagram of the slag discharge assembly.

[0015] Figure label: 1. Mounting plate; 101. Hinge 1; 102. Hinge 2; 2. Support arm; 201. Hinge 3; 202. Motor; 2021. Angle reducer; 203. Protective cover; 204. Threaded groove; 3. Hydraulic rod; 4. Trenching wheel; 401. Trenching tooth 1; 402. Trenching tooth 2; 403. Cutting blade; 4031. Connecting column; 404. End; 405. Rotating shaft; 5. Slag discharge assembly; 501. Slide rail; 5011. Bushing; 502. Rotating rod; 5021. End cap; 5022. Threaded section; 503. Folding plate. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Please see Figure 1-6 As shown, this utility model is a trench excavation device for drainage pipe network construction, including an installation plate 1, a support arm 2, a hydraulic rod 3, a trenching wheel 4, and a slag discharge assembly 5. Two support arms 2 are hinged to the lower part of one side of the installation plate 1. A hydraulic rod 3 is provided above each of the two support arms 2. A trenching wheel 4 is rotatably connected between the opposite faces of the two support arms 2 away from the installation plate 1. A slag discharge assembly 5 is provided on the outside of the trenching wheel 4 away from the installation plate 1. Mounting plate 1 is installed on the corresponding engineering machinery for walking operations, realizing long straight trench excavation. Then, the trenching wheel 4 rotates, and through the operation of hydraulic rod 3, the outrigger 2 is driven to descend, so that the lower part of the trenching wheel 4 extends into the ground. After determining the corresponding trench depth, it stops. The excavated soil is discharged from the slag discharge assembly 5 and then pulled forward by the engineering machinery to realize continuous trench excavation operations. The outer periphery of the trenching wheel 4 is fixedly provided with multiple rows of trenching teeth 401 arranged in a circular array. Multiple rows of trenching teeth 402 arranged in a circular array are fixedly provided on the two end faces of the trenching wheel 4, and a cutting blade 403 is provided between each two adjacent rows of trenching teeth 402. End heads 404 are provided at the center of both ends of the trenching wheel 4, and a rotating shaft 405 is fixed on the side of the two end heads 404 that are far apart. As the trenching wheel 4 rotates, the entire device moves forward ( Figure 1 (The direction of the middle arrow is the direction of travel). The first 401 of the trenching wheel 4 on the outer periphery continuously contacts the soil, breaking it up and excavating it to form a trench. During this process, the second 2 of the breaking teeth on the end face of the trenching wheel 4 will also break the side wall of the trench in the direction of travel. In addition, the rotating cutting blade 403 will cut the side of the trench flat, excavating and shaping it in one go, and maintaining the flatness of the side wall of the trench. The slag discharge assembly 5 includes a curved slide 501 and an inverted V-shaped hinge plate 503 fixed below the higher end of the slide 501. The excavated soil generated during trench excavation is discharged upward from the slide 501 in the slag discharge assembly 5, falls onto the folding plate 503 at the highest point, and finally slides down the slope of the folding plate 503 to accumulate on the ground surface above the trench. The folding plate 503 is always higher than the ground surface and much greater than the width of the trench. The length of the folding plate 503 is determined according to the power of the trenching wheel 4 so that it can catch the soil excavated by the trenching wheel 4.

[0018] A hinge 2 102 is fixed on the side of the mounting plate 1 near the support arm 2, and the support arm 2 is connected to the hinge 2 102. A hinge 3 201 is fixed at the upper end of the support arm 2. A hinge 1 101 is fixed on the side of the mounting plate 1 above the hinge 2 102. The main body of the hydraulic rod 3 is hinged to the hinge 1 101, and the telescopic part of the hydraulic rod 3 is hinged to the hinge 3 201 below it. When the hydraulic cylinder is working, the support arm 2 is driven to rise and fall by the hinge 3 201. The support arm 2 rotates around the hinge 2 102, so that the lower part of the trenching wheel 4 connected to it enters the ground and digs out the shape of the trench.

[0019] A motor 202 and a rotary reducer 2021 are fixed on the side of any one of the outriggers 2 away from the trenching wheel 4. The output shaft of the motor 202 is connected to the input shaft of the rotary reducer 2021. The output shaft of the rotary reducer 2021 passes through the outrigger 2 and is connected to the rotating shaft 405. When the motor 202 is working, it is redirected and decelerated by the angle reducer 2021, and the transmission shaft 405 and the trenching wheel 4 rotate, so that the motor can perform trenching operations.

[0020] A connecting post 4031 is fixed on the side of the cutting blade 403 near the trenching wheel 4 and is fixedly connected to the trenching wheel 4 through the connecting post 4031; the distance between the cutting edge of the cutting blade 403 and the trenching wheel 4 is greater than the distance between the head of the trenching tooth 402 and the trenching wheel 4, and less than the thickness of the end 404; The cutting blade 403 is connected to the trenching wheel 4 via the connecting post 4031, and rotates with the trenching wheel 4 to cut the soil on the side wall of the trench, making it flat.

[0021] A quarter-circle fan-shaped protective cover 203 is also provided on the outside of the trenching wheel 4. The protective cover 203 is fixed on the opposite surface of the two support arms 2, and the protective cover 203 is located in the upper middle part of the trenching wheel 4 near the support arms 2. The design of the fan-shaped protective cover 203 helps to prevent soil generated during excavation from entering the mounting plate 1 and the direction of the construction machinery.

[0022] The lower end of the slide 501 faces the lower part of the trenching wheel 4. The middle part of the slide 501 is fixed with bushings 5011 on both sides, and each bushing 5011 is rotatably connected with a rotating rod 502. The end of the rotating rod 502 near the folding plate 503 is fixed with a head 5021, and the end of the rotating rod 502 away from the head 5021 is provided with a thread to form a threaded section 5022. The end of the support arm 2 away from the mounting plate 1 is provided with a threaded groove 204, and the threaded section 5022 at the end of the rotating rod 502 is screwed into the threaded groove 204 that is close to it. During operation, the rotating rod 502 is rotated within the bushing 5011, causing its threaded section 5022 to be screwed into the threaded groove 204 on the support arm 2, thereby connecting the support arm 2 with the slag discharge assembly 5.

[0023] The specific working principle of this utility model is as follows: First, the mounting plate 1 is installed on the corresponding engineering machinery for walking operations. Then, the motor 202 works, and the angle reducer 2021 reverses and reduces speed, causing the transmission shaft 405 and the trenching wheel 4 to rotate, thus performing trenching operations. Subsequently, the hydraulic cylinder works, driving the support arm 2 to rise and fall via the hinge 201. The support arm 2 rotates around the hinge 102, causing the lower part of the trenching wheel 4 connected to it to enter the ground, excavating the trench shape. The depth of the trenching wheel 4 into the ground is determined, which is the depth of the excavated trench, and then the process stops (the maximum depth is slightly less than the radius of the trench, which is the distance from the trenching tooth 402 closest to the center to the outer edge of the trenching wheel 4). (Distance), at this time, the construction machinery drives the mounting plate 1 and this device to travel a certain distance, forming a small trench. Then, the rotating rod 502 is rotated so that it rotates inside the bushing 5011, so that the position of its threaded section 5022 is screwed into the threaded groove 204 on the support arm 2, realizing the connection between the support arm 2 and the slag discharge assembly 5. Finally, the construction machinery drives this device to travel in a straight line. As the entire device moves, the trenching teeth 401 on the outer periphery of the trenching wheel 4 continuously contact the soil, breaking it and digging it out to form a trench. During this process, the breaking teeth 2 on the end face of the trenching wheel 4 will also break the side wall of the trench in the direction of travel. In addition, the rotating cutting blade 403 cuts the side of the trench flat, completing the trench excavation operation.

[0024] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A trench excavation device for drainage pipe network construction, comprising a mounting plate (1), a support arm (2), a hydraulic rod (3), a trenching wheel (4), and a slag removal assembly (5), characterized in that: Two support arms (2) are hinged to the lower part of one side of the mounting plate (1). A hydraulic rod (3) is provided above each of the two support arms (2). A trenching wheel (4) is rotatably connected between the opposite faces of the two support arms (2) away from the mounting plate (1). A slag discharge assembly (5) is provided on the outside of the trenching wheel (4) away from the mounting plate (1). The outer periphery of the trenching wheel (4) is fixedly provided with multiple rows of trenching teeth (401) arranged in a ring array. Multiple rows of trenching teeth (402) arranged in a ring array are fixedly provided on the two end faces of the trenching wheel (4). A cutting blade (403) is provided between each two adjacent rows of trenching teeth (402). End heads (404) are provided at the center of the two ends of the trenching wheel (4). A rotating shaft (405) is fixed on the side of the two ends (404) that are far apart. The slag discharge assembly (5) includes a curved slide (501) and an inverted V-shaped hinge plate (503) fixed below the higher end of the slide (501).

2. The trench excavation device for drainage pipe network construction according to claim 1, characterized in that: The mounting plate (1) is fixed with a hinge two (102) near the support arm (2) on its side, and the support arm (2) is connected to the hinge two (102). The upper end of the support arm (2) is fixed with a hinge three (201). The mounting plate (1) above the hinge two (102) is fixed with a hinge one (101). The main body of the hydraulic rod (3) is hinged to the hinge one (101), and the telescopic part of the hydraulic rod (3) is hinged to the hinge three (201) below it.

3. The trench excavation device for drainage pipe network construction according to claim 1, characterized in that: A motor (202) and a rotary reducer (2021) are fixed on the side of any of the outriggers (2) away from the trenching wheel (4). The output shaft of the motor (202) is connected to the input shaft of the rotary reducer (2021), and the output shaft of the rotary reducer (2021) passes through the outrigger (2) and is connected to the rotating shaft (405).

4. The trench excavation device for drainage pipe network construction according to claim 1, characterized in that: The cutting blade (403) has a connecting post (4031) fixed on the side near the trenching wheel (4) and is fixedly connected to the trenching wheel (4) through the connecting post (4031); the distance between the cutting edge of the cutting blade (403) and the trenching wheel (4) is greater than the distance between the head of the second trenching tooth (402) and the trenching wheel (4) and less than the thickness of the end (404).

5. The trench excavation device for drainage pipe network construction according to claim 1, characterized in that: The trenching wheel (4) is also provided with a quarter-circle fan-shaped protective cover (203). The protective cover (203) is fixed on the opposite surface of the two support arms (2), and the protective cover (203) is located in the upper middle part of the trenching wheel (4) near the support arms (2).

6. The trench excavation device for drainage pipe network construction according to claim 1, characterized in that: The lower end of the slide (501) faces the lower part of the trenching wheel (4). The middle part of the slide (501) is fixed with bushings (5011) on both sides, and each bushing (5011) is rotatably connected with a rotating rod (502). The end of the rotating rod (502) near the folding plate (503) is fixed with a cap (5021), and the end of the rotating rod (502) away from the cap (5021) is provided with a thread to form a threaded section (5022).

7. A trench excavation device for drainage pipe network construction according to claim 6, characterized in that: The arm (2) has a threaded groove (204) at one end away from the mounting plate (1), and the threaded section (5022) at the end of the rotating rod (502) is screwed into the threaded groove (204) that is close to it.

Images