Drain trench excavation aid
By designing an auxiliary device for drainage ditch excavation, the reliance on large machinery and a large amount of labor during construction was eliminated, improving construction flexibility and efficiency, adapting to different terrains and sites, and reducing operator fatigue and project costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MCC COMM CONSTR GRP CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-07-14
AI Technical Summary
Existing technologies rely on large machinery or a large workforce in the construction of temporary facilities and temporary road drainage systems, which leads to difficulties in equipment scheduling, low efficiency in the use of human resources, insufficient flexibility in construction in complex terrain or narrow sites, and uncontrollable project costs.
An auxiliary device for excavating drainage ditches was designed, including a fixed frame, a telescopic handlebar, an inclined support, a guide wheel, a traction hook, and a foldable support leg. It combines manual operation with mechanical traction, adapts to different heights and terrains, and improves operating comfort and construction efficiency.
It reduces reliance on large machinery and labor, improves construction flexibility and efficiency, adapts to complex terrain and narrow spaces, and reduces operator fatigue and engineering costs.
Smart Images
Figure CN224495251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage ditch excavation technology, specifically to an auxiliary device for drainage ditch excavation. Background Technology
[0002] In the construction engineering field, the construction of drainage systems for temporary facilities and roads typically employs traditional construction techniques, relying mainly on large mechanized equipment (such as hydraulic excavators) or entirely manual excavation. Existing technologies have significant limitations: First, the construction process is highly dependent on specialized construction machinery; when faced with regional equipment shortages or limited space, difficulties in equipment scheduling directly impact project progress. Second, purely manual operation requires a large number of construction workers, leading to low efficiency in human resource utilization under conditions of insufficient labor supply or high labor costs. Furthermore, traditional techniques lack construction flexibility when dealing with complex terrain or special working conditions, and the combined costs of equipment rental and labor can easily cause uncontrollable increases in project costs. Utility Model Content
[0003] This utility model was made to solve the above-mentioned technical problems. Its purpose is to provide an auxiliary device for excavating drainage ditches, which solves the problem of relying on large mechanical equipment such as excavators or a large amount of labor in the construction of simple temporary drainage ditches.
[0004] To achieve the above objectives, this utility model provides an auxiliary device for excavating drainage ditches, comprising: a fixed frame, a handlebar disposed at one end of the fixed frame, a ditch-digging shovel disposed at the lower end of the handlebar, a traction hook disposed at the other end of the fixed frame, and a guide wheel disposed in the middle of the fixed frame; wherein...
[0005] The guide wheel is connected to the fixed frame via a central shaft and drives the excavation auxiliary device to move along the drainage ditch;
[0006] The traction hook connects to external traction equipment to provide traction force along the direction of the drainage ditch for the excavation auxiliary device.
[0007] Preferably, a handle is provided at the upper end of the handlebar, and an anti-slip sleeve is provided on the handle.
[0008] Preferably, the handlebars are retractable handlebars.
[0009] Preferably, an oblique support is provided between the fixing frame and the handlebars.
[0010] Preferably, the towing hook includes: a spring clip and a safety bolt.
[0011] The spring clip is used to secure the traction rope.
[0012] Preferably, the surface of the guide wheel is provided with anti-slip texture, and the axial direction of the guide wheel is perpendicular to the direction of the drainage ditch.
[0013] Preferably, a shock-absorbing spring is provided between the guide wheel and the fixed frame.
[0014] Preferably, a support leg is provided at the bottom of the fixing frame; wherein,
[0015] The support leg is a foldable support leg, which is used for parking and fixing the device.
[0016] Preferably, the fixing frame is a cuboid frame formed by four rods, and buckles are provided between adjacent rods.
[0017] Preferably, a pin hole is provided at the lower end of the handlebar, and a spring pin corresponding to the pin hole is provided at the upper end of the trenching shovel.
[0018] Based on the above description and practice, the drainage ditch excavation auxiliary device of this utility model has the following advantages compared with traditional excavation auxiliary devices:
[0019] 1. Traditional devices typically have fixed handlebars, requiring operators to adapt to the device's height, which can easily lead to fatigue. This device uses retractable handlebars and ratchet-type angle locking, supporting height and tilt adjustment (0°-90°), accommodating users of different heights and significantly reducing operator fatigue.
[0020] 2. Traditional frames are prone to deformation under stress. This utility model adopts a fixed frame with inclined support truss and quick-release buckle connection, which not only improves bending stiffness, but also supports quick assembly and disassembly.
[0021] 3. Traditional devices are prone to tipping over when parked. This utility model forms a stable triangular support surface after the support legs are extended, making it suitable for various terrains. Attached Figure Description
[0022] Figure 1 This is a side view of an excavation auxiliary device involved in one embodiment of the present invention.
[0023] Figure 2 This is a side view of an excavation auxiliary device involved in one embodiment of the present invention.
[0024] The attached figures are labeled as follows:
[0025] 1. Mounting frame; 2. Handlebars; 3. Trenching shovel head; 4. Towing hook; 5. Guide wheel; 6. Handle handle. Detailed Implementation
[0026] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0027] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] In view of the problem that traditional excavation devices in the prior art rely on large mechanical equipment such as excavators or a large amount of labor during the construction of simple temporary drainage ditches, this utility model proposes an auxiliary device for drainage ditch excavation.
[0030] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0031] Please refer to Figure 1This utility model discloses an auxiliary device for excavating drainage ditches, comprising: a fixed frame 1, a handlebar 2 mounted at one end of the fixed frame 1, a trenching shovel head 3 mounted at the lower end of the handlebar 2, a traction hook 4 mounted at the other end of the fixed frame 1, and a guide wheel 5 mounted in the middle of the fixed frame 1. The traction hook 4 is used to connect to external traction equipment; the trenching shovel head 3 is used for excavating drainage ditches. The fixed frame 1 serves as the main structure, with the handlebar 2 mounted at the front end, the traction hook 4 at the rear end, and the guide wheel 5 in the middle, and is constructed entirely of high-strength steel. The direct connection between the handlebar 2 and the trenching shovel head 3 ensures that the operator can precisely control the cutting depth and angle of the shovel head through pushing and pulling actions; the quick connection of the traction hook 4 to external traction equipment, such as a small tractor, can significantly improve excavation efficiency, especially suitable for long-distance linear trench construction.
[0032] In addition, this utility model has a simple structure, which takes into account both the flexibility of manual operation and the high efficiency of mechanical traction, and is especially suitable for the construction of temporary drainage ditches in narrow spaces or complex terrains.
[0033] Furthermore, a handlebar 6 is installed at the upper end of the handlebar 2, and an anti-slip sleeve is provided on the handlebar 6. The addition of the anti-slip handlebar 6 significantly improves operating comfort and safety. The handlebar 6 adopts an ergonomic curved design, conforming to the natural grip curve of the palm, and its surface is covered with a high-density rubber anti-slip sleeve. Its texture consists of alternating diamond-shaped raised and recessed patterns, effectively increasing the coefficient of friction and preventing grip failure due to sweaty hands or slippery conditions in rainy weather. The inner layer of the anti-slip sleeve is embedded with shock-absorbing sponge, which absorbs the vibration energy transmitted to the handlebar 6 during operation, reducing operator arm fatigue. In addition, the connection between the handlebar 6 and the handlebar 2 uses a detachable clamp structure, making it easy to replace anti-slip sleeves of different sizes according to the user's hand shape. In continuous operation scenarios, traditional metal handlebars 6 are prone to causing hand abrasions, while the anti-slip sleeve not only provides a comfortable grip, but its weather-resistant rubber material can withstand a temperature range of -20℃ to 80℃, adapting to various harsh working conditions.
[0034] Furthermore, the handlebar 2 is a telescopic handlebar 2. This telescopic design solves the problem of traditional fixed handlebars 2 being unable to accommodate different operator heights and working postures. The handlebar 2 uses a spring-pin locking mechanism, allowing for precise length adjustments in 50mm increments. During operation, simply pressing the spring pin allows for free adjustment of the handlebar 2 length, enabling operators from 1.5m to 1.9m in height to find the optimal force application posture. In addition, the 15° angled design at the end of the handlebar 2 makes construction work more effortless. In complex terrain, shortening the handlebar 2 improves the device's steering flexibility; when digging long straight trenches, extending the handlebar 2 increases the torque arm, reducing operator fatigue.
[0035] Furthermore, a diagonal support is provided between the fixed frame 1 and the handlebars 2. By adding the diagonal support, the overall rigidity and deformation resistance of the device are effectively enhanced. The diagonal support adopts a 30° inclined triangular truss design, which is made of two galvanized steel pipes with a diameter of 25mm welded together. Its top end is connected to the middle of the handlebars 2, and its bottom end is fixed to the middle of the fixed frame 1, which improves the overall stability of this utility model and extends its service life.
[0036] Furthermore, the towing hook 4 includes a spring clip and a safety bolt. The spring clip is used to secure the towing rope. The dual locking design of the spring clip and safety bolt significantly improves the reliability and ease of operation of the towing connection. When the towing rope is inserted into the hook body, the latch immediately springs up and locks, preventing accidental disengagement. The safety bolt, as a secondary protection, can be manually rotated to the locked position, completely eliminating the risk of accidental retraction of the latch. Compared to traditional threaded locking towing hooks 4, this design allows for quick connection without tools, simplifying the operation and making it particularly suitable for frequent start-stop operation scenarios. The clip contact surface undergoes special hardening treatment to effectively resist wear during long-term use, ensuring long-term stability under high-load towing conditions. The overall structure balances safety and efficiency, significantly reducing safety accidents caused by connection failure.
[0037] Furthermore, the guide wheel 5 has anti-slip textures on its surface, and the axis of the guide wheel 5 is perpendicular to the direction of the drainage ditch. In this embodiment, the guide wheel 5 uses a composite material wheel body, and its surface is machined with V-shaped anti-slip textures of appropriate depth, which can enhance adhesion to the ground and avoid increased resistance due to excessively deep textures. In practical applications, this guide wheel 5 significantly reduces the frequency of manual path correction, and is especially suitable for excavation operations of long-distance straight trenches. The guide wheel 5 is located in the middle of the fixed frame 1, and its design of having its axis perpendicular to the trenching direction ensures that the device always moves in a straight line along the predetermined path, avoiding path deviation caused by manual operation.
[0038] Furthermore, a shock-absorbing spring is provided between the guide wheel 5 and the fixed frame 1. A bearing is provided at the connection between the guide wheel 5 and the fixed frame 1. In this embodiment, the bearing is a sealed ball bearing, which is used to reduce travel resistance and prevent mud and sand from entering.
[0039] Furthermore, a support leg is provided at the bottom of the mounting frame 1; the support leg is a foldable support leg used for parking and securing the device. The support leg is connected to the mounting frame 1 via a hinge, forming a triangular support when unfolded and fitting snugly against the mounting frame 1 when folded. This foldable support leg design solves the stability problem during temporary parking of the device. The support leg uses a linkage mechanism for quick unfolding and retraction, forming a stable triangular support surface when unfolded to prevent the device from tipping over during work breaks. A wide grounding plate is provided at the end of the leg to increase the contact area with the ground, ensuring reliable fixation in soft or sloping terrain. In the folded state, the support leg fits snugly against the mounting frame 1, without occupying extra space, balancing portability and functionality.
[0040] Furthermore, the fixing frame 1 is a cuboid frame formed by four rods, with snap-fit connections between adjacent rods. The rods are connected by snap-fit connections, allowing for assembly or disassembly without tools. In other embodiments, a cross-reinforcing structure can be provided inside the frame to improve its overall bending and torsional resistance, enabling it to withstand high-intensity operational loads.
[0041] Furthermore, a pin hole is provided at the lower end of the handlebar 2, and a corresponding spring pin is provided at the upper end of the trenching head 3. The matching design of the pin hole and spring pin allows for automatic locking during installation simply by aligning and inserting the head; disassembly is achieved by pressing the unlock button, requiring no tools throughout the process. The connection area features a sealed dustproof design to prevent mud and sand from intruding and affecting operational smoothness. This structure supports configuration with various sizes of trench heads to meet different trench sizes and soil conditions. Compared to traditional bolt connections, this design significantly shortens replacement time, improves operational flexibility, and reduces maintenance difficulty during long-term use.
[0042] During the trenching process, firstly, the device is placed at the predetermined trenching location, and its direction is manually adjusted to determine the trench's direction. The operator holds the handle 6 at the upper end of the handlebar 2 and applies moderate downward pressure to make the trenching shovel head 3 cut into the soil layer, adjusting the pressure flexibly according to the required trench depth. While maintaining downward pressure, the device is pushed at a uniform speed in the predetermined direction, and the shovel head continuously turns the soil to both sides of the trench, forming a complete drainage ditch structure.
[0043] For excavation scenarios with hard soil or flat terrain, an external towing device (such as a small vehicle) can be connected via the towing hook 4. When the towing device moves forward at a constant speed, the operator only needs to assist in adjusting the direction of travel of the device to achieve efficient trenching operations and significantly reduce manpower consumption. During construction, the device can be paused intermittently and stabilized to ensure the consistency of trench straightness and depth.
[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A drainage ditch excavation auxiliary device, characterized in that, include: The vehicle includes a fixed frame, a handlebar at one end of the fixed frame, a trenching shovel at the lower end of the handlebar for excavating drainage ditches, a towing hook at the other end of the fixed frame, and a guide wheel in the middle of the fixed frame; wherein, The guide wheel is connected to the fixed frame via a central shaft and drives the excavation auxiliary device to move along the drainage ditch; The traction hook connects to an external traction device to provide traction force along the direction of the drainage ditch for the drainage ditch excavation auxiliary device.
2. The drainage ditch excavation auxiliary device as described in claim 1, characterized in that, A handle is provided at the upper end of the handlebar, and an anti-slip sleeve is provided on the handle.
3. The drainage ditch excavation auxiliary device as described in claim 1, characterized in that, The handlebars are retractable.
4. The drainage ditch excavation auxiliary device as described in claim 1, characterized in that, An oblique support is provided between the fixed frame and the handlebars.
5. The drainage ditch excavation auxiliary device as described in claim 1, characterized in that, The towing hook includes: a spring clip and a safety bolt. The spring clip is used to secure the traction rope.
6. The drainage ditch excavation auxiliary device as described in claim 1, characterized in that, The guide wheel has anti-slip texture on its surface, and the axis of the guide wheel is perpendicular to the direction of the drainage ditch.
7. The drainage ditch excavation auxiliary device as described in claim 1, characterized in that, A shock-absorbing spring is provided between the guide wheel and the fixed frame.
8. The drainage ditch excavation auxiliary device as described in claim 7, characterized in that, A support leg is provided at the bottom of the fixing frame; wherein, The support leg is a foldable support leg, which is used for parking and fixing the device.
9. The drainage ditch excavation auxiliary device as described in claim 1, characterized in that, The fixing frame is a cuboid frame formed by four rods, and buckles are provided between adjacent rods.
10. The drainage ditch excavation auxiliary device as described in claim 1, characterized in that, A pin hole is provided at the lower end of the handlebar, and a spring pin corresponding to the pin hole is provided at the upper end of the trenching shovel.