Rapid trench excavation device
By installing a rapid trench excavation device with a mounting platform, right-angle steering gear, and soil-cutting gear at the end of the vehicle body, the problem of slow trench excavation speed for small-diameter pipelines has been solved, enabling efficient excavation in hard soil layers and shortening construction time.
Patent Information
- Application Number
- CN202520432786.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In existing technologies, the excavation speed of small-diameter pipe trenches is slow, especially in hard soil layers where efficiency is low, and small excavators are difficult to deploy, resulting in a prolonged construction process.
Design a rapid trench excavation device with a platform, right-angle steering gear and soil-cutting gear at the end of the vehicle body. The soil-cutting gear is connected by a hydraulic telescopic rod and a universal coupling to realize the rotation of the soil-cutting gear and trench excavation.
It improves the speed of trench excavation, especially in hard soil layers, significantly increasing efficiency, reducing construction time, and avoiding delays in equipment deployment.
Smart Images

Figure CN223937233U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trench excavation technology, and specifically to a rapid trench excavation device. Background Technology
[0002] Currently, small-diameter pipe trenches for municipal engineering projects are typically excavated manually or with small excavators. Manual excavation is slow, and the excavation speed decreases significantly when encountering slightly harder soil layers. In current construction processes, small excavators are usually used for trench excavation. However, in actual construction, small excavators are often difficult to obtain, and it usually takes several days to coordinate and acquire them, which prolongs the construction process. Utility Model Content
[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a trench excavation device. By setting a mounting platform at the end of the vehicle body and setting a right-angle steering gear and a soil cutting gear at the end of the mounting platform, the vehicle body can be equipped with trench excavation tools for construction.
[0004] The technical solution to achieve the above objective is a rapid trench excavation device, installed at the end of a vehicle body, wherein the end of the vehicle body is provided with a power output end, and the excavation device includes:
[0005] A rotatable mounting platform located at the end of the vehicle body;
[0006] A right-angle steering gear is disposed at the end of the mounting platform. The right-angle steering gear has an input end and an output end, and the input end and the power output end of the right-angle steering gear are connected by a universal coupling; and
[0007] The soil-cutting gear, located at the output end of the right-angle steering gear, moves along the rotation direction of the mounting platform by rotating the mounting platform.
[0008] Furthermore, the soil-cutting gear is covered with a dustproof cover, and a portion of the soil-cutting gear protrudes from the bottom of the dustproof cover to form a soil-cutting section. The side of the dustproof cover is fixed to the right-angle steering gear.
[0009] Furthermore, a hydraulic telescopic rod is rotatably provided between the vehicle body and the dust cover.
[0010] Furthermore, a connecting end is formed at the end of the vehicle body, and the hydraulic telescopic rod is rotatably mounted on the connecting end.
[0011] Furthermore, a fixed end is formed at the end of the vehicle body, and the mounting platform is rotatably mounted on the fixed end.
[0012] Compared with the prior art, this utility model has the following advantages:
[0013] By setting a mounting platform at the end of the vehicle body, and installing a right-angle steering gear and a soil-cutting gear at the end of the mounting platform, the vehicle body can be equipped with tools for digging trenches for construction. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of a rapid trench excavation device;
[0015] Figure 2 A top view of a rapid trench excavation device;
[0016] Legend: 1. Soil-cutting gear; 2. Dust cover; 3. Right-angle steering gear; 4. Hydraulic telescopic rod; 5. Universal coupling; 6. Mounting platform. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] See Figure 1 A rapid trench excavation device is disposed at the end of a vehicle body, the end of which is provided with a power output end. The excavation device includes: a rotatable mounting platform 6 disposed at the end of the vehicle body; a right-angle steering gear 3 disposed at the end of the mounting platform 6, the right-angle steering gear 3 having an input end and an output end, the input end of the right-angle steering gear 3 and the power output end being connected by a universal coupling 5; and a soil-cutting gear 1 disposed at the output end of the right-angle steering gear 3, wherein rotating the mounting platform 6 causes the soil-cutting gear 1 to move along the rotation direction of the mounting platform 6.
[0019] In this utility model, a preferred embodiment is as follows: a mounting platform 6 is provided at the end of the vehicle body, and the mounting platform 6 is rotatably mounted at the end of the vehicle body by bolts or pins connected to the vehicle body. The bolts are of a specification of not less than M24 and a strength of not less than 10.9 grade. A right-angle steering gear 3 is provided at the end of the mounting platform 6 away from the vehicle body. One end of the right-angle steering gear 3 is connected to the power output end of the vehicle body through a universal coupling 5, and the other end is connected to a soil-cutting gear 1, so that the vehicle body can control the rotation of the soil-cutting gear 1 to excavate the trench through the rotation of the soil-cutting gear 1.
[0020] Furthermore, the vehicle body can be a tractor or a forklift, etc. In this embodiment, the power output end is located at the rear of the tractor.
[0021] Furthermore, the soil-cutting gear 1 is made of steel gear with a box-shaped structure. The width can be machined as needed. It is hollow inside and has two rows of tooth tips on the outside, which are slightly inclined outward to ensure efficient grooving.
[0022] Furthermore, the cutting gear 1 is covered with a dust cover 2, and a portion of the cutting gear 1 protrudes from the bottom of the dust cover 2 to form a cutting section. The side of the dust cover 2 is fixed to the right-angle steering gear 3. This dust cover 2 reduces dust generated during grooving.
[0023] Furthermore, the protective cover is made of thin-walled steel plate with a thickness of not less than 1.5mm and a distance of not less than 40cm from the gear to ensure sufficient space for excavation and prevent the gear speed from being affected by excessive soil compression due to insufficient space.
[0024] Furthermore, the output end of the right-angle steering gear 3 is fitted with a connecting pipe for protection to ensure safe operation. The protective cover and the connecting pipe are connected by a connecting rod.
[0025] Furthermore, a hydraulic telescopic rod 4 is rotatably provided between the vehicle body and the dust cover 2. Preferably, both ends of the hydraulic telescopic rod 4 are rotatable shafts, the hydraulic telescopic rod 4 has a tensile force of not less than 1.5t and a stroke of not less than 35cm, and the hydraulic telescopic rod 4 is driven by a motor to extend or shorten the hydraulic telescopic rod 4.
[0026] In this utility model, a preferred embodiment is as follows: during use, the length of the hydraulic telescopic rod 4 is extended to push the protective cover plate, which is fixed on the right-angle steering gear 3, so as to push the mounting platform 6 to rotate downward. After use, the hydraulic telescopic rod 4 is shortened to pull the protective cover plate, thereby pulling the mounting platform 6 upward.
[0027] Furthermore, a connecting end is formed at the end of the vehicle body, and the hydraulic telescopic rod 4 is rotatably mounted on the connecting end. Preferably, the connecting end and the hydraulic telescopic rod 4 are connected by bolts or pins, so that the hydraulic telescopic rod 4 is rotatably mounted on the connecting end.
[0028] Furthermore, the protective cover and the hydraulic telescopic rod 4 are connected by bolts or pins, so that the hydraulic telescopic rod 4 is rotatably mounted on the protective cover.
[0029] Furthermore, a fixed end is formed at the end of the vehicle body, and the mounting platform 6 is rotatably disposed on the fixed end. Preferably, in this embodiment, the fixed end and the connecting end are formed by welding steel pipes to the end of the vehicle body.
[0030] The following describes the usage process of the trench rapid excavation device of this utility model.
[0031] A mounting platform 6 is rotatably mounted at the rear of the tractor. The mounting platform 6 is connected to the vehicle body using bolts or pins, allowing it to rotatably mount at the end of the vehicle body. The bolts must be at least M24 in size and have a strength of at least 10.9. The power output end at the rear of the tractor serves as the rotational power input end of this device and is connected to a universal coupling 5. A right-angle steering gear 3 is mounted at the end of the mounting platform 6 furthest from the vehicle body. One end of the right-angle steering gear 3 is connected to the power output end of the vehicle body via the universal coupling 5, and the other end is connected to a soil-cutting gear 1. This allows the vehicle body to control the rotation of the soil-cutting gear 1. During use, the length of the hydraulic telescopic rod 4 is extended to push the protective cover plate, which is fixed to the right-angle steering gear 3, thus pushing the mounting platform 6 downwards. The soil-cutting gear 1 then excavates the trench. Once ready, the tractor is started, moving forward at high speed and low travel speed. During this process, the tractor's direction of travel is manually adjusted to ensure the trench remains straight.
[0032] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.
Claims
1. A rapid trench excavation device, disposed at the end of a vehicle body, wherein the end of the vehicle body is provided with a power output end, characterized in that, The excavation device includes: A rotatable mounting platform located at the end of the vehicle body; A right-angle steering gear is disposed at the end of the mounting platform. The right-angle steering gear has an input end and an output end. The input end of the right-angle steering gear is connected to the power output end of the vehicle body via a universal coupling. The soil-cutting gear, located at the output end of the right-angle steering gear, moves along the rotation direction of the mounting platform by rotating the mounting platform.
2. The rapid trench excavation device according to claim 1, characterized in that: The soil-cutting gear is covered with a dustproof cover plate, and part of the soil-cutting gear is exposed at the bottom of the dustproof cover plate to form a soil-cutting section. The side of the dustproof cover plate is fixed to the right-angle steering gear.
3. The rapid trench excavation device according to claim 2, characterized in that: A hydraulic telescopic rod is rotatably provided between the vehicle body and the dust cover.
4. The rapid trench excavation device according to claim 3, characterized in that: The end of the vehicle body is formed with a connecting end, and the hydraulic telescopic rod is rotatably mounted on the connecting end.
5. The rapid trench excavation device according to claim 1, characterized in that: The vehicle body has a fixed end, on which the mounting platform is rotatably mounted.