Excavation positioning guide assisted support device
By designing a combination of support plate and extension mechanism, flexible adjustment of support device and real-time monitoring of excavation detector are achieved, solving the problem that traditional supports are difficult to adapt to changes in rock strata, and improving the excavation accuracy and safety of ultra-high rock sections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA ZHONGKUN ENERGY TECH DEV CO LTD
- Filing Date
- 2025-10-15
- Publication Date
- 2026-07-31
AI Technical Summary
In the layered excavation of ultra-high rock sections, the auxiliary support devices of traditional fixed supports are difficult to adjust flexibly, resulting in excessive support gaps, insufficient stability, and positioning deviations that lead to irregular excavation profiles and safety hazards.
An auxiliary support device was designed, comprising a support plate, an extension mechanism, and a pushing mechanism. The distance between the support plates can be flexibly adjusted by the sliding of the extension plate in the stabilizing groove and the cooperation of the ball bearings. An excavation detector is equipped to monitor the position in real time, ensuring that the detection data is accurately matched with the excavation operation.
It enables precise control of the support device, improves the construction accuracy and safety of excavation in ultra-high rock sections, adapts to rock strata of different sizes and shapes, avoids irregular excavation problems caused by positioning deviations, and enhances the stability and safety of construction.
Smart Images
Figure CN224579342U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rock excavation engineering technology, specifically to an auxiliary support device for excavation positioning and guidance. Background Technology
[0002] In the construction of highways, railways and tunnels, the layered excavation of super-high rock sections is one of the construction difficulties. The rock structure of such sections is dense and hard, and joints and fissures are easily present due to the influence of geological structure. Not only are the requirements for excavation accuracy strict, but reliable auxiliary support structures are also needed to resist the lateral pressure of the rock strata and prevent safety accidents such as collapse and rockfall during the excavation process. Currently, in the layered excavation of ultra-high rock sections, the auxiliary support and positioning guidance mostly adopt the traditional mode of fixed brackets. The auxiliary support often uses a fixed frame welded from steel sections. The bracket spacing needs to be pre-processed according to the preset excavation width. If the width of the excavated section changes on site (such as when encountering rock protrusions or local geological anomalies that require adjustment of the excavation range), the brackets need to be disassembled and re-welded or replaced. This is not only time-consuming and labor-intensive, but also makes it difficult to ensure the fit between the brackets and the rock wall. The excessive gap between the supports can easily lead to insufficient stability. Therefore, an auxiliary support device for excavation positioning guidance is proposed to address the above problems. Utility Model Content
[0003] The purpose of this invention is to provide an auxiliary support device for excavation positioning and guidance, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: An auxiliary support device for excavation positioning and guidance includes support plates, an extension mechanism is provided between the support plates, an excavation detector is installed on the top of the extension mechanism, and a pushing mechanism is provided on the outside of the support plates. The extension mechanism includes a stabilizing groove, an extension plate is slidably engaged inside the stabilizing groove, a sliding plate is fixedly connected to the outside of the extension plate, and a moving groove is provided in the side wall of the stabilizing groove, with a ball bearing rotatably engaged inside the moving groove. The pushing mechanism includes a movable tube, a rotating handle is rotatably engaged inside the movable tube, a lead screw is fixedly connected to the outside of the rotating handle, a moving block is threadedly connected to the outside of the lead screw, a connecting rod is fixedly connected to the top of the moving block, and a sliding groove is formed in the bottom of the stabilizing groove.
[0005] As a further optimization of this utility model, a connecting mechanism is provided between the excavation detector and the extension mechanism, the connecting mechanism including a fixing rod, and a transmission groove is provided on the top of the stabilizing groove.
[0006] As a further optimization of this utility model, the stabilizing groove is fixedly connected to the outside of the support plate, and the end of the extension plate away from the stabilizing groove is fixedly connected to the outside of the other end of the support plate.
[0007] As a further optimization of this utility model, the slide plates are symmetrically distributed on the outside of the extension plate, and the end of the slide plate away from the extension plate is slidably connected to the inside of the moving groove.
[0008] As a further optimization of this utility model, the ball bearings are evenly distributed inside the moving groove, and the ball bearings are rotatably connected to the outside of the slide plate.
[0009] As a further optimization of this utility model, the movable tube is fixedly connected to the outside of the support plate, and the lead screw is rotatably connected to the bottom of the stabilizing groove via a rotating handle.
[0010] As a further optimization of this utility model, the connecting rod is slidably connected inside the groove, and the top of the connecting rod is fixedly connected to the bottom of the extension plate.
[0011] As a further optimization of this utility model, the fixing rod is fixedly connected to the bottom of the excavation detector, and the fixing rod is slidably connected inside the transmission groove, with the bottom of the fixing rod fixedly connected to the top of the extension plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the extension plate can slide in the stabilizing groove through the extension mechanism. With the help of the ball bearings in the moving groove, the sliding resistance of the slide plate is greatly reduced, so that the spacing between the support plates can be flexibly adjusted according to the actual needs such as the width and height of the excavation section. The pushing mechanism drives the lead screw to rotate through the rotating handle, which drives the moving block and the connecting rod to move, thereby smoothly pushing the extension plate to extend and retract, realizing precise control of the support range. It can adapt to excavation scenarios of ultra-high rock sections of different sizes and shapes, and enhance the versatility and adaptability of the device.
[0013] 2. In this utility model, the excavation detector equipped with the device can monitor the excavation position and status in real time, and is stably connected to the extension mechanism through the connecting mechanism. It can move synchronously with the extension plate to ensure that the detection data and the excavation operation position are accurately matched, effectively avoiding the problems of irregular excavation contour, over-excavation or under-excavation caused by positioning deviation during layered excavation, and improving the accuracy and quality of excavation construction in ultra-high rock sections. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the bottom of the stabilizing groove of this utility model; Figure 3This is a cross-sectional view of the internal structure of the stabilizing groove of this utility model; Figure 4 This is a schematic diagram of the outer side of the connecting mechanism of this utility model.
[0015] In the diagram: 1. Support plate; 2. Extension mechanism; 21. Stabilizing groove; 22. Extension plate; 23. Slide plate; 24. Moving groove; 25. Ball bearing; 3. Excavation detector; 4. Pushing mechanism; 41. Movable tube; 42. Rotating handle; 43. Lead screw; 44. Moving block; 45. Connecting rod; 46. Slide groove; 5. Connecting mechanism; 51. Fixed rod; 52. Transmission groove. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0018] Please see Figures 1-4 This utility model provides a technical solution: An auxiliary support device for excavation positioning and guidance includes a support plate 1, an extension mechanism 2 is provided between the support plates 1, an excavation detector 3 is installed on the top of the extension mechanism 2, and a pushing mechanism 4 is provided on the outside of the support plate 1. The extension mechanism 2 includes a stabilizing groove 21, an extension plate 22 is slidably engaged inside the stabilizing groove 21, a sliding plate 23 is fixedly connected to the outside of the extension plate 22, and a moving groove 24 is provided in the side wall of the stabilizing groove 21, with a ball bearing 25 rotatably engaged inside the moving groove 24. The pushing mechanism 4 includes a movable tube 41, a rotating handle 42 is rotatably connected inside the movable tube 41, a lead screw 43 is fixedly connected to the outside of the rotating handle 42, a moving block 44 is threadedly connected to the outside of the lead screw 43, a connecting rod 45 is fixedly connected to the top of the moving block 44, and a sliding groove 46 is provided in the bottom of the stabilizing groove 21.
[0019] It should be noted that: the stabilizing groove 21 is fixedly connected to the outside of the support plate 1, the end of the extension plate 22 away from the stabilizing groove 21 is fixedly connected to the outside of the other end of the support plate 1, the sliding plate 23 is symmetrically distributed on the outside of the extension plate 22, and the end of the sliding plate 23 away from the extension plate 22 is slidably connected to the inside of the moving groove 24, the ball bearings 25 are evenly distributed inside the moving groove 24, and the ball bearings 25 are rotatably connected to the outside of the sliding plate 23, the movable tube 41 is fixedly connected to the outside of the support plate 1, the lead screw 43 is rotatably connected to the bottom of the stabilizing groove 21 through the rotating handle 42, the connecting rod 45 is slidably connected to the inside of the sliding groove 46, and the top of the connecting rod 45 is fixedly connected to the bottom of the extension plate 22.
[0020] Furthermore, the pushing mechanism 4 provides telescopic power for the extension mechanism 2. Its core component, the movable tube 41, is a seamless steel pipe, which is fixedly welded to the reinforcing rib plate on the outside of the support plate 1. The inner diameter of the movable tube 41 is clearance-fitted with the outer diameter of the rotating handle 42, and the inner wall is coated with grease to ensure that the rotating handle 42 rotates flexibly. The outer side of the rotating handle 42 is equipped with an anti-slip rubber sleeve, which makes it easy for the operator to grip and apply force. Its connection with the lead screw 43 adopts a keyway fit + welding fixation method to avoid the failure of power transmission caused by the relative rotation of the two. The lead screw 43 adopts a trapezoidal thread structure, and the thread surface is galvanized for rust prevention, which can not only ensure the thread engagement accuracy with the moving block 44, but also improve the corrosion resistance in the humid environment of the rock strata.
[0021] Specifically: the movable block 44 is a rectangular metal block with a threaded hole inside that matches the lead screw 43. The two sides of the movable block 44 are fitted with the guide boss at the bottom of the stabilizing groove 21 to prevent the movable block 44 from rotating synchronously with the lead screw 43 and to ensure that it moves only along the axial direction of the lead screw 43. The connecting rod 45 is a cylindrical steel rod. Its top is fixed to the connecting plate at the bottom of the extension plate 22 by bolts, and its bottom is welded to the movable block 44. The gap between the diameter of the connecting rod 45 and the groove width of the slide 46 is controlled at 0.3-0.5mm. The slide 46 is opened along the length of the bottom of the stabilizing groove 21 to provide a moving guide for the connecting rod 45, preventing the extension plate 22 from shifting during extension and retraction, and achieving precise adjustment of the support spacing.
[0022] Furthermore, the excavator detector 3, as the core component for positioning and guidance, has a metal shell with an IP65 waterproof and dustproof rating. Inside, it integrates a laser rangefinder, an inclination sensor, and a data transmission module, which can collect distance and angle data of the excavation face in real time and transmit them wirelessly to the construction monitoring terminal.
[0023] As a further implementation of this solution, a connecting mechanism 5 is provided between the excavation detector 3 and the extension mechanism 2. The connecting mechanism 5 includes a fixing rod 51 and a transmission groove 52 is provided on the top of the stabilizing groove 21.
[0024] It should be noted that: the fixing rod 51 is fixedly connected to the bottom of the excavation detector 3, and the fixing rod 51 is slidably connected inside the transmission groove 52, and the bottom of the fixing rod 51 is fixedly connected to the top of the extension plate 22.
[0025] Furthermore, the fixed rod 51 is made of stainless steel. Its top is bolted to the mounting flange at the bottom of the excavation detector 3, and its bottom is threaded and spot-welded to the threaded hole at the top of the extension plate 22, ensuring that there is no relative displacement between the excavation detector 3 and the extension plate 22. The transmission groove 52 is a long groove opened along the length of the top of the stabilizing groove 21. The groove width is 1-2mm larger than the diameter of the fixed rod 51. This allows the fixed rod 51 to slide synchronously with the extension plate 22, while also restricting the direction of movement of the fixed rod 51, preventing the excavation detector 3 from swaying laterally and ensuring the accuracy of the detection data. In addition, the groove opening of the transmission groove 52 is equipped with a rubber dustproof strip, which can prevent dust generated during rock excavation from entering the groove, thus avoiding affecting the smooth sliding of the fixed rod 51, and protecting the internal structure of the groove from dust wear.
[0026] Workflow: Before the layered excavation operation of the super-high rock section begins, the device is initialized and prepared. The support plate 1 is placed in a suitable position on both sides of the excavation area to ensure that its bottom is in close and stable contact with the ground or rock foundation. At this time, the extension plate 22 in the extension mechanism 2 is in the initial retracted state, the slide plate 23 is located in the moving groove 24 on the side wall of the stabilizing groove 21, the moving block 44 of the pushing mechanism 4 is in the initial position outside the screw 43, and the excavation detector 3 is connected to the extension plate 22 through the fixing rod 51 of the connecting mechanism 5. The fixing rod 51 is engaged in the transmission groove 52 at the top of the stabilizing groove 21, thus completing the overall assembly and positioning calibration of the device. When entering the layered excavation operation stage, the positioning and guidance process is started simultaneously. The excavation detector 3 collects data such as the location of the rock strata, the excavation depth, and the operating angle of the excavation equipment in the excavation area in real time. Since the fixed rod 51 is fixedly connected to the extension plate 22 and can slide along the transmission groove 52, the excavation detector 3 can always maintain a precise correspondence with the excavation working face as the extension plate 22 moves, ensuring the real-time and accuracy of the detection data and providing a reliable basis for excavation positioning. Meanwhile, the auxiliary support adjustment process is carried out according to the excavation progress and on-site conditions. When it is necessary to adjust the support spacing of the support plate 1 to adapt to different excavation widths, the operator rotates the rotating handle 42 in the movable tube 41 of the pushing mechanism 4, which drives the lead screw 43 to rotate synchronously. Since the lead screw 43 is threadedly connected to the moving block 44, and the moving block 44 is fixed to the bottom of the extension plate 22 through the connecting rod 45, and the connecting rod 45 is slidably engaged in the sliding groove 46 at the bottom of the stabilizing groove 21, the rotation of the lead screw 43 will be converted into the linear movement of the moving block 44 along the axis of the lead screw 43, and then push the extension plate 22 to slide in the stabilizing groove 21 through the connecting rod 45. During this process, the sliding plate 23 on the outside of the extension plate 22 slides along the moving groove 24. The evenly distributed balls 25 in the moving groove 24 roll in contact with the outside of the sliding plate 23, which greatly reduces the frictional resistance between the sliding plate 23 and the moving groove 24, making the extension and retraction of the extension plate 22 more stable and smooth, and finally achieving precise adjustment of the support spacing of the support plate 1, forming a stable lateral support for the excavation area of the ultra-high rock section. Throughout the operation, the extension mechanism 2 provides a transmission base for the pushing mechanism 4 through its telescopic adjustment, and the mechanical drive of the pushing mechanism 4 provides power for the adjustment of the support spacing. The excavation detector 3 achieves precise positioning and detection by relying on the linkage between the connecting mechanism 5 and the extension mechanism 2. All mechanisms work together closely to ensure the positioning and guidance accuracy of the layered excavation, and improve the construction safety and stability through the flexible and adjustable auxiliary support structure, thus meeting the operational needs of complex excavation conditions in ultra-high rock sections.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. Auxiliary support device for excavation positioning guides, comprising a support plate (1), characterized in that: An extension mechanism (2) is provided between the support plates (1), a digging detector (3) is installed on the top of the extension mechanism (2), and a pushing mechanism (4) is provided on the outside of the support plates (1). The extension mechanism (2) includes a stabilizing groove (21), an extension plate (22) is slidably engaged inside the stabilizing groove (21), a sliding plate (23) is fixedly connected to the outside of the extension plate (22), and a moving groove (24) is provided in the side wall of the stabilizing groove (21), and a ball bearing (25) is rotatably engaged inside the moving groove (24). The pushing mechanism (4) includes a movable tube (41), a rotating handle (42) is rotatably connected inside the movable tube (41), a lead screw (43) is fixedly connected to the outside of the rotating handle (42), a moving block (44) is threadedly connected to the outside of the lead screw (43), a connecting rod (45) is fixedly connected to the top of the moving block (44), and a sliding groove (46) is provided in the bottom of the stabilizing groove (21).
2. The auxiliary support device for excavating positioning and guiding according to claim 1, characterized in that: A connecting mechanism (5) is provided between the excavation detector (3) and the extension mechanism (2). The connecting mechanism (5) includes a fixing rod (51), and a transmission groove (52) is provided on the top of the stabilizing groove (21).
3. The auxiliary support device for excavating positioning and guiding according to claim 1, characterized in that: The stabilizing groove (21) is fixedly connected to the outside of the support plate (1), and the end of the extension plate (22) away from the stabilizing groove (21) is fixedly connected to the outside of the other end of the support plate (1).
4. The auxiliary support device for excavating positioning and guiding according to claim 1, characterized in that: The slide plate (23) is symmetrically distributed on the outside of the extension plate (22), and the end of the slide plate (23) away from the extension plate (22) is slidably connected to the inside of the moving groove (24).
5. The auxiliary support device for excavating positioning and guiding according to claim 1, characterized in that: The balls (25) are evenly distributed inside the moving groove (24), and the balls (25) are rotatably connected to the outside of the slide plate (23).
6. The auxiliary support device for excavating positioning and guiding according to claim 1, characterized in that: The movable tube (41) is fixedly connected to the outside of the support plate (1), and the lead screw (43) is rotatably connected to the bottom of the stabilizing groove (21) by rotating the handle (42).
7. The auxiliary support device for excavating positioning and guiding according to claim 1, characterized in that: The connecting rod (45) is slidably connected inside the groove (46), and the top of the connecting rod (45) is fixedly connected to the bottom of the extension plate (22).
8. The auxiliary support device for excavation positioning and guidance according to claim 2, characterized in that: The fixing rod (51) is fixedly connected to the bottom of the excavation detector (3), and the fixing rod (51) is slidably connected inside the transmission groove (52). The bottom of the fixing rod (51) is fixedly connected to the top of the extension plate (22).