High-stability protection device for water conservancy project

Abstract

The utility model provides a high-stability protection device for a water conservancy project. The high-stability protection device comprises a protection cover and a hole clamping mechanism which are arranged above a drill hole. The hole clamping mechanism comprises an axial sliding rod which is coaxial with the drill hole and is connected to the center of the protective cover in a sliding mode in the axial direction of the drill hole. The hinge block is fixed to the end, facing the drill hole, of the axial sliding rod. The supporting rod comprises at least three rod bodies which are distributed around the periphery of the axial sliding rod at equal angles, and the near end of the supporting rod is hinged to the center of the protective cover; one ends of the inner supporting rods are hinged to the hinge blocks, and the other ends of the inner supporting rods are hinged to the middle sections of the corresponding supporting rods; the limiting mechanism is arranged between the axial sliding rod and the protective cover; the axial sliding rod moves towards the outside of the drill hole to drive the inner supporting rod to unfold the supporting rod, so that the far end of the supporting rod abuts against the inner wall of the drill hole, and the limiting mechanism synchronously locks the axial displacement of the axial sliding rod. According to the high-stability protection device for the water conservancy project, the protection device can be stably arranged in a drill hole.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and specifically to a high-stability protection device for water conservancy projects. Background Technology

[0002] Water conservancy projects, as an important category of engineering aimed at eliminating water-related disasters and efficiently developing and utilizing water resources, encompass a wide variety of sub-fields. Classified by their service targets, these include flood control projects dedicated to resisting floods; agricultural water conservancy projects ensuring irrigation and drainage needs for farmland; hydroelectric power generation projects utilizing water energy to convert into electricity; waterway and port projects creating navigation channels and cargo loading and unloading areas; water supply and drainage projects meeting the water supply and wastewater treatment needs of urban and rural residents and industries; environmental water conservancy projects emphasizing the maintenance of aquatic ecological balance; and coastal reclamation projects for developing coastal mudflats. In addition, there is a special type of water conservancy project that can simultaneously serve multiple objectives such as flood control, water supply, irrigation, and power generation—this is the comprehensive utilization water conservancy project, which plays a crucial role in optimizing water resource allocation and maximizing the comprehensive benefits of water resources.

[0003] In the construction process of water conservancy projects, pile foundation construction is an extremely important step. The first step in pile foundation construction is drilling at the corresponding location in the ground. After drilling is completed, the actual construction of the pile foundation begins. However, in actual construction scenarios, various complex situations often arise. For example, due to the uncertainty of the weather, such as severe weather like heavy rain or strong winds, construction may have to be temporarily suspended; or the overall construction schedule may be affected, preventing subsequent procedures from following up in a timely manner. These factors may all lead to the inability to immediately commence pile foundation construction after drilling is completed. In this case, the boreholes will be exposed on the construction site. If effective protective measures are not taken for these boreholes, construction workers are highly likely to accidentally fall into them due to negligence, causing serious safety accidents and posing a significant threat to their lives.

[0004] Currently, a significant problem with the protective devices used at construction sites is their susceptibility to movement. When the protective device moves relative to the borehole, gaps appear in the protective barrier around the borehole. In such cases, construction workers who get too close could fall into the borehole unprepared through the gaps created by the shifted device, leading to accidents. This safety hazard caused by the movement of protective devices seriously disrupts the safety order at construction sites and urgently needs to be addressed by improving protective technology or adopting more robust protective devices. Summary of the Invention

[0005] The problem this invention aims to solve is to provide a highly stable protective device for water conservancy projects, which can be stably installed inside boreholes.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: a high-stability protective device for water conservancy projects, including a protective cover and a locking mechanism disposed above a borehole; the locking mechanism includes: an axial sliding rod, coaxially disposed with the borehole and slidably connected to the center of the protective cover along the borehole axis; a hinge block, fixed to the end of the axial sliding rod facing the borehole; a support rod, at least three rods distributed at equal angles around the outer circumference of the axial sliding rod, the proximal end of which is hinged to the center of the protective cover; an inner support rod, the number of which corresponds to the support rod, one end of which is hinged to the hinge block, and the other end of which is hinged to the middle section of the corresponding support rod; a limiting mechanism, disposed between the axial sliding rod and the protective cover; wherein, by moving the axial sliding rod outward from the borehole, the inner support rod is driven to unfold the support rod, so that the distal end of the support rod abuts against the inner wall of the borehole, and the limiting mechanism simultaneously locks the axial displacement of the axial sliding rod.

[0007] A high-stability protective device for hydraulic engineering projects comprises a protective cover and a locking mechanism. The locking mechanism includes an axial sliding rod coaxial with the borehole and slidably connected along the borehole axis at the center of the protective cover; a hinge block fixed to the end of the axial sliding rod facing the borehole; at least three support rods evenly distributed around the outer circumference of the axial sliding rod, with their proximal ends hinged to the center of the protective cover; inner support rods corresponding in number to the support rods, one end of which is hinged to the hinge block, and the other end to the middle section of the corresponding support rod; and a limiting mechanism positioned between the axial sliding rod and the protective cover. When the axial sliding rod moves outward from the borehole, it drives the inner support rods to unfold the support rods, causing the distal ends of the support rods to abut against the inner wall of the borehole. Simultaneously, the limiting mechanism locks the axial displacement of the axial sliding rod, ensuring a tight fixation between the protective device and the borehole. This protective device enhances stability by having the support rods abut against the inner wall of the borehole and locking the axial sliding rod, preventing movement of the protective device relative to the borehole, effectively solving the safety hazards caused by movement of the protective device, and ensuring the safety of personnel at the construction site.

[0008] Furthermore, the limiting mechanism includes multiple limiting holes distributed along the axial direction of the axial sliding rod, and a pin that penetrates the protective cover and can be inserted into the limiting holes. Inserting the pin into the limiting holes at different positions allows for precise locking of the axial sliding rod in specific locations, ensuring a stable contact state after the support rod is deployed. This solves the problem of inaccurate fixation of the axial sliding rod displacement, prevents positional changes in the support rod due to accidental sliding of the axial sliding rod, enhances the overall stability of the protective device, and prevents movement of the protective device.

[0009] Furthermore, a hinge shaft is provided at the end of the support rod furthest from the center of the protective cover. The hinge shaft is arranged horizontally, with its axis parallel to the circumferential tangent of the borehole inner wall. An arc-shaped support plate is rotatably connected to the hinge shaft. The arc-shaped support plate can adaptively rotate according to the irregular shape of the borehole inner wall when the support rod abuts against it, thus better conforming to the borehole inner wall. This solves the problem of insufficient contact between the support rod and the borehole inner wall, improves the comprehensiveness and stability of the contact between the protective device and the borehole inner wall, reduces the shaking of the protective device, and further enhances the protective effect.

[0010] Furthermore, the arc-shaped support plate is made of elastic rubber material, and its end face facing the inner wall of the borehole is a raised arc shape with a radius smaller than the borehole radius.

[0011] Furthermore, the surface of the arc-shaped support plate that contacts the borehole is provided with continuous sawtooth-shaped friction patterns, with a sawtooth height of 1-3mm. These continuous sawtooth-shaped friction patterns significantly increase the friction between the arc-shaped support plate and the inner wall of the borehole, making the protective device more secure when fixed. This solves the problem of the protective device easily slipping due to insufficient friction, further enhancing the stability of the protective device at the borehole and ensuring safety at the construction site.

[0012] Furthermore, a reflective strip is installed at the top of the axial sliding rod, and the surface of the reflective strip is covered with a waterproof membrane layer. The reflective strip serves as a warning in low-light construction environments by reflecting light, reminding construction workers to pay attention to the location of the protective device. The waterproof membrane layer protects the reflective strip, extends its service life, and ensures stable operation of the warning function. This solves the problem that construction workers may not easily notice the protective device in poor lighting conditions, and may easily step on or approach the drilling hole, effectively preventing safety accidents. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a perspective view of the present utility model;

[0015] Figure 3 This is a perspective view of the present invention when it is contracted;

[0016] Figure 4 This is a top view of the arc-shaped support plate of this utility model when it comes into contact with the inner wall of the drill hole.

[0017] Illustration: 1. Protective cover; 2. Axial sliding rod; 3. Hinge block; 4. Support rod; 5. Inner support rod; 6. Limiting mechanism; 631. Limiting hole; 632. Pin; 7. Arc-shaped support plate; 71. Serrated friction texture; 8. Reflective strip; 9. Hinge shaft; 100. Drill hole. Detailed Implementation

[0018] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0019] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0020] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

[0021] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0022] Please see Figures 1 to 4A high-stability protective device for hydraulic engineering includes a protective cover 1 disposed above a borehole 100 and a locking mechanism. The locking mechanism consists of an axial sliding rod 2, a hinge block 3, a support rod 4, an inner support rod 5, and a limiting mechanism 6. The axial sliding rod 2 is coaxially arranged with the borehole 100 and slidably connected to the center of the protective cover 1 along the axial direction of the borehole 100. The end of the support rod facing the borehole 100 is fixed with the hinge block 3. The support rod 4 comprises at least three rods evenly distributed around the outer circumference of the axial sliding rod 2, with their proximal ends hinged to the center of the protective cover 1. The number of inner support rods 5 corresponds to the number of support rods 4; one end is hinged to the hinge block 3, and the other end is hinged to the middle section of the corresponding support rod 4 to form a linkage structure. When the axial sliding rod 2 moves outward from the borehole 100, the inner support rod 5 drives the support rod 4 to unfold, causing the distal end of the support rod 4 to abut against the inner wall of the borehole 100. At this time, the limiting mechanism 6 simultaneously locks the axial displacement of the axial sliding rod 2.

[0023] The limiting mechanism 6 specifically includes multiple limiting holes 631 distributed axially along the axial sliding rod 2, and a pin 632 that penetrates the protective cover 1 and can be inserted into the limiting holes 631 to achieve mechanical fixation. The support rod 4 has a horizontally arranged hinge shaft 9 at its distal end, whose axis is parallel to the tangent direction of the inner wall of the borehole 100. An arc-shaped support plate 7 rotatably connected to the hinge shaft 9 is made of elastic rubber material, with a convex arc-shaped contact surface and a radius smaller than the radius of the borehole 100. The surface is provided with continuous sawtooth friction textures 71 (sawtooth height 1-3mm), which enhances frictional contact with the borehole wall through elastic deformation. The top of the axial sliding rod 2 is provided with a reflective strip 8 covered with a waterproof membrane layer for positioning and identification during nighttime operation. This device achieves high stability and environmental adaptability of the borehole 100 protection through the synergistic effect of multi-stage hinged transmission and adaptive contact structure. Please refer to [link / reference]. Figure 3 Initial collapse state

[0024] When the protective device is not deployed, the locking mechanism is in the retracted state:

[0025] Axial sliding rod 2: located in the inward position (close to the borehole 100) in the axial direction of the borehole 100, and maintains sliding contact with the center of the protective cover 1.

[0026] Support rod 4 and inner support rod 5: are folded and closely attached to axial sliding rod 2.

[0027] Limiting mechanism 6: When pin 632 is not inserted into limiting hole 631, axial sliding rod 2 can slide freely.

[0028] The axial sliding rod 2 is moved outward from the borehole 100 by pulling it with external force (such as manual or mechanical traction):

[0029] Linkage of hinge block 3: The hinge block 3 at the end of the axial sliding rod 2 moves outward synchronously with the rod body, causing the ends of each inner support rod 5 and support rod 4 to move outward to the outside of the protective cover 1.

[0030] Four-bar linkage: One end of the inner support rod 5 is driven by the hinge block 3, and the other end pushes the middle section of the support rod 4, forcing the support rod 4 to rotate and unfold around the hinge point at the center of the protective cover 1. Figure 1 ).

[0031] Support rod 4 radial deployment and contact locking

[0032] The support rod 4 exhibits the following motion characteristics during deployment:

[0033] Angle change: The support rod 4 gradually changes from a near-horizontal position when it is folded up to an inclined position, with its distal end extending towards the inner wall of the borehole 100.

[0034] Elastic contact: When the arc-shaped support plate 7 (elastic rubber material) at the end of the support rod 4 contacts the hole wall, it deforms and its surface sawtooth friction texture 71 is embedded in the microstructure of the hole wall, forming multi-point dynamic friction contact.

[0035] Adaptive adjustment: The hinge shaft 9 allows the arc-shaped support plate 7 to rotate around the horizontal transverse axis, conforming to the inner wall of the drill hole 100 with different curvatures and compensating for hole diameter deviation.

[0036] Limiting mechanism 6 locking

[0037] When the support rod 4 is fully extended and the arc-shaped support plate 7 is in close contact with the hole wall:

[0038] Pin 632 fixing: Insert pin 632 into the limiting hole 631 corresponding to the axial sliding rod 2 to prevent the sliding rod from retracting and achieve rigid locking of the mechanism.

[0039] Mechanical transmission: The reaction force of the inner wall of the borehole 100 is transmitted to the axial sliding rod 2 through the support rod 4 and the inner support rod 5, and finally the load is borne by the pin 632 and the protective cover 1.

[0040] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A high-stability protection device for water conservancy projects, characterized in that: The application relates to a protective cover (1) and a clamping hole mechanism arranged above a drill hole (100), wherein the clamping hole mechanism comprises: an axial sliding rod (2) coaxially arranged with the drill hole (100) and axially slidably connected to the center of the protective cover (1); a hinge block (3) fixed to the end of the axial sliding rod (2) facing the drill hole (100); a support rod (4) comprising at least three rod bodies distributed at equal angles around the outer periphery of the axial sliding rod (2), the proximal end of the support rod (4) being hingedly connected to the center of the protective cover (1); an inner support rod (5) corresponding in number to the support rod (4), one end of the inner support rod (5) being hingedly connected to the hinge block (3) and the other end being hingedly connected to the middle section of the corresponding support rod (4); and a limiting mechanism (6) arranged between the axial sliding rod (2) and the protective cover (1), wherein the inner support rod (5) is driven to expand the support rod (4) by moving the axial sliding rod (2) outward of the drill hole (100), so that the distal end of the support rod (4) abuts against the inner wall of the drill hole (100), and the limiting mechanism (6) synchronously locks the axial displacement of the axial sliding rod (2).

2. A high stability protection device for hydraulic engineering according to claim 1, characterized in that: The limiting mechanism (6) comprises a plurality of limiting holes (631) distributed along the axial direction of the axial sliding rod (2), and a bolt (632) penetrating through the protective cover (1) and being insertable into the limiting holes.

3. A high stability protection device for hydraulic engineering according to claim 1, characterized in that: The end of the support rod (4) away from the center of the protective cover (1) is provided with a hinge shaft (9) arranged horizontally and transversely, the axis of the hinge shaft (9) being parallel to the tangential direction of the circumference of the inner wall of the drill hole (100), and the hinge shaft (9) is rotationally connected with an arc-shaped support plate (7).

4. A high-stability protection device for hydraulic engineering according to claim 3, characterized in that: The arc-shaped support plate (7) is made of elastic rubber material, the end surface thereof facing the inner wall of the drill hole (100) is in the form of a convex arc, and the radius of the arc-shaped support plate (7) is smaller than the radius of the drill hole.

5. A high stability protection device for hydraulic engineering according to claim 4, characterized in that: The surface of the arc-shaped support plate (7) in contact with the drill hole is provided with continuous sawtooth-shaped friction lines (71), and the height of the sawteeth is 1-3 mm.

6. A high stability protection device for hydraulic engineering according to claim 1, characterized in that: The top of the axial sliding rod (2) is provided with a reflective strip (8), and the surface of the reflective strip is covered with a waterproof film layer.

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