Accurate positioning and hole guiding device for drain board
By designing a drainage board precision positioning and pre-hole device with a beam frame and positioning mechanism, the problem of traditional machinery being unable to accurately pre-hole is solved, thereby improving construction accuracy and efficiency. It is suitable for pre-hole construction of plastic drainage boards.
Patent Information
- Application Number
- CN202520343383.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Traditional machinery cannot accurately drill holes before installing plastic drainage boards, and groundwater overflow causes missing markers and hole displacement, affecting construction accuracy and efficiency.
A device for precisely positioning and fixing drainage boards with pre-drilled holes, comprising a beam frame and a positioning mechanism, was designed. The beam frame is welded from Q235 square steel and fixed with positioning pins. Combined with the sliding positioning mechanism and positioning pins, the hole positions can be precisely adjusted and fixed.
It improves the positioning accuracy and construction efficiency of the pilot borehole, reduces the impact of vibration and groundwater, avoids repetitive manual measurement work, and ensures the accuracy and convenience of the borehole location.
Smart Images

Figure CN223893351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roadbed base reinforcement construction, and in particular to a device for precise positioning of drainage boards and pre-hole drilling, which is suitable for pre-hole drilling before installing plastic drainage boards. Background Technology
[0002] When driving drainage boards into the top of sandbags, traditional machinery cannot directly penetrate the sandbags, and forced driving would cause irreversible damage to the machinery. Therefore, pilot drilling is necessary first. Pilot drilling is performed using a vibratory hammer with a chisel. Before drilling, the hole positions need to be marked on the ground, usually by sprinkling mortar or inserting bamboo sticks. However, if the ground moisture content at the construction site is high, water will overflow during vibratory drilling, causing the mortar markings to be missing. At the same time, ground vibration can also cause the bamboo sticks to shift, resulting in inaccurate hole positions. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a device for accurately positioning drainage board holes, which can effectively improve positioning accuracy and efficiency.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A device for precise positioning of drainage board boreholes includes a beam frame with multiple positioning mechanisms on it. Each positioning mechanism includes a slide block, which is slidably mounted on the beam frame via a slide groove and locked in place. A borehole positioning tube is fixed inside the slide block, serving as a positioning hole for the drill rod of the borehole machine.
[0006] The beam frame includes crossbeams and longitudinal beams, which are welded together to form a square frame structure.
[0007] The beam frame is equipped with fixing sleeves welded at both ends, and fixing pins are inserted into the fixing sleeves and driven into the ground.
[0008] The longitudinal beam has positioning holes evenly distributed along its length, and the corresponding slide has insertion holes. The positioning pins are inserted into the insertion holes and the positioning holes limit the movement.
[0009] The distance between adjacent positioning holes is 10-20 cm.
[0010] The beam frame is made of Q235 square steel welded together.
[0011] The pilot hole positioning tube is made of Q235 steel pipe.
[0012] This utility model provides a device for precisely positioning the pilot hole of a drainage board, which has the following technical advantages:
[0013] 1) The beam frame is fixed by driving in positioning pins; and then it is used in conjunction with a sliding positioning mechanism, which is locked by positioning pins. This makes the hole spacing accurate and basically unaffected by on-site vibration and groundwater.
[0014] 2) Convenient construction, no need for repeated manual measurement of positioning holes. After the hole in one row is completed, the device can be directly lifted to the next row. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a top view of the present invention.
[0018] Figure 3 This is a partial structural schematic diagram of the present invention.
[0019] In the diagram: 1. Fixing pin; 2. Positioning mechanism; 3. Fixing sleeve; 4. Positioning pin; 5. Beam frame. Detailed Implementation
[0020] like Figure 1-3 As shown, a device for precisely positioning drainage board boreholes includes a beam frame 5, which is made of Q235 square steel and includes a crossbeam 5.1 and a longitudinal beam 5.2. The crossbeam 5.1 and the longitudinal beam 5.2 are welded into a square frame structure. Fixing sleeves 3 are welded to both ends of the beam frame 5. Fixing pins 1 are inserted into the fixing sleeves 3 and driven into the ground to complete the fixing of the device.
[0021] A positioning mechanism 2 is slidably mounted on the beam frame 5, and multiple sets of positioning mechanisms 2 are installed in the beam frame 5. Each set of positioning mechanisms 2 includes a slide seat 2.1, with sliding grooves 2.2 at both ends of the slide seat 2.1, which slide in cooperation with the longitudinal beam 5.2 of the beam frame 5. In addition, positioning holes 5.3 are evenly distributed along the length of the longitudinal beam 5.2, with a spacing of 10-20 cm between adjacent positioning holes 5.3. The corresponding slide seat 2.1 has insertion holes around its perimeter, through which positioning pins 4 can pass to limit the position of the slide seat 2.1. When it is necessary to adjust the spacing of multiple sets of positioning mechanisms 2, the positioning pins 4 are pulled out, and after adjustment, the positioning pins 4 are inserted back in. This allows for free adjustment according to the design spacing requirements during on-site construction. A pilot hole positioning tube 2.3 is welded inside the slide seat 2.1, and the pilot hole positioning tube 2.3 is made of Q235 steel pipe with a diameter of 200mm.
[0022] Working principle and process:
[0023] Step 1: After transporting the device to the construction site, adjust the spacing of the positioning mechanism 2 according to the drainage board spacing required by the design. When adjusting, first pull out the positioning pin 4, and after the spacing is adjusted, insert the positioning pin 4 back in to make it consistent with the design requirements.
[0024] Step 2: After the spacing is adjusted, use a hammer to drive the fixing pin 1 on the side of the crossbeam 5.1 into the ground to fix the entire frame and prevent it from shifting due to vibration during construction.
[0025] Step 3: When drilling the pilot hole, align the drill rod of the pilot hole drilling machine with the positioning hole 3 to begin construction.
Claims
1. A device for precisely positioning drainage board boreholes, characterized in that: The beam frame (5) is provided with multiple positioning mechanisms (2). Each positioning mechanism (2) includes a slide (2.1). The slide (2.1) is slidably mounted on the beam frame (5) and locked through a slide groove (2.2). A pre-hole positioning tube (2.3) is fixed inside the slide (2.1). The pre-hole positioning tube (2.3) serves as the positioning hole for the pre-hole drilling machine.
2. The device for precisely positioning drainage board boreholes according to claim 1, characterized in that: The beam frame (5) includes a crossbeam (5.1) and a longitudinal beam (5.2), which are welded into a square frame structure.
3. The device for precisely positioning drainage board boreholes according to claim 2, characterized in that: The beam frame (5) has fixed sleeves (3) welded to both ends, and fixed pins (1) are inserted into the fixed sleeves (3) and driven into the ground.
4. The device for precisely positioning drainage board boreholes according to claim 3, characterized in that: The longitudinal beam (5.2) has positioning holes (5.3) evenly distributed along its length. The corresponding slide (2.1) has insertion holes, and the positioning pin (4) is inserted into the insertion holes and the positioning holes (5.3) for positioning.
5. The device for precisely positioning drainage board boreholes according to claim 4, characterized in that: The spacing between adjacent positioning holes (5.3) is 10-20 cm.
6. The device for precisely positioning drainage board boreholes according to claim 5, characterized in that: The beam frame (5) is made of Q235 square steel by welding.
7. The device for precisely positioning drainage board boreholes according to claim 6, characterized in that: The pre-hole positioning tube (2.3) is made of Q235 steel pipe.