Stair and ramp handrail water-drilling device

By designing a water-drilling hole-opening device for staircases and barrier-free ramp handrails, and using components such as splicing rods and positioning guide blocks to achieve stable positioning of the water drill and drill bit, the problem of tilting during water drill hole opening was solved, and construction safety and accuracy were improved.

CN224310933UActive Publication Date: 2026-06-02INNER MONGOLIA XINGTAI CONSTRAL GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA XINGTAI CONSTRAL GRP CO LTD
Filing Date
2025-06-26
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing water drilling machines lack a limiting and guiding structure when drilling, which makes it easy for the drill bit to tilt during manual operation, posing a safety hazard and causing inaccurate construction.

Method used

A water-drilling device for staircases and barrier-free ramp handrails has been designed, comprising components such as splicing rods, positioning guide blocks, supporting vertical rods, ground-mounted flat plates, and strong magnetic blocks. Through the combined use of these components, the water drill and drill bit are stably positioned and guided, preventing tilting.

Benefits of technology

It improves the stability and safety of the drill bit, ensures that the drill bit remains vertical, avoids construction errors and safety accidents, and simplifies the installation and disassembly process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a water-drilling hole-opening device for staircases and barrier-free ramp handrails. The water drill has symmetrically fixed splicing rods on both sides, with mounting screw holes drilled through one end of each splicing rod. A splicing sleeve block is fitted onto the surface of one end of each splicing rod, and a mounting bolt is fixedly installed in the middle of the splicing sleeve block. A positioning guide block is fixedly connected to one end of the splicing sleeve block, and a supporting vertical rod is movably installed through the middle of the positioning guide block. An anti-detachment block is fixedly connected to the top of the supporting vertical rod, and a protective pad is fixedly connected to the bottom of the supporting vertical rod. A ground-mounted flat plate is connected to the bottom of the protective pad. This utility model uses the ground-mounted flat plate and the step to limit the position of the supporting vertical rod, providing positioning protection for the water drill and drill bit, improving the stability of the drill bit, and preventing drill bit tilting due to lack of positioning when manually supporting the water drill and drill bit, which could easily lead to drill bit accidents. This improves overall construction safety.
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Description

Technical Field

[0001] This utility model relates to the field of water drilling technology, specifically a water drilling device for staircases and barrier-free ramp handrails. Background Technology

[0002] With increasing demands for building safety and aesthetics, the application of stainless steel railings and handrails has significantly increased. When installing stainless steel handrails on stairs and accessible ramps, expansion bolts are often used to fix them to the stair treads, followed by welding to secure the handrail posts to the expansion bolts. However, because the stainless steel posts and expansion bolts are made of different materials, the welds are not strong and have poor durability. Using water-drilling technology allows the handrail posts to be directly inserted into the structure, and then cement grout is poured into the gaps, avoiding the above problems and improving the stability of the handrail.

[0003] However, currently, when using a water drill to drill holes, it is necessary to manually press down and adjust it. There is a lack of limiting and guiding structure. Manual operation can easily cause the water drill to tilt when descending. Tilting the drill bit can easily break and cause safety accidents. Therefore, this utility model provides a water drill hole-drilling device for staircases and barrier-free ramp handrails to meet people's needs. Utility Model Content

[0004] This utility model provides a water-drill hole-opening device for handrails of stairs and barrier-free ramps, which can effectively solve the problems mentioned in the background art, such as the need for manual hand-held downward pressing adjustment when using a water drill, the lack of a limiting and guiding structure, and the easy occurrence of the water drill tilting when descending due to manual operation, which can easily lead to the drill bit breaking and causing safety accidents.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water-drilling hole-opening device for handrails of stairs and barrier-free ramps, including a water-drilling machine, a drill bit installed at the bottom of the water-drilling machine, splicing rods symmetrically fixedly connected to both sides of the water-drilling machine, a mounting screw hole through one end of each of the two splicing rods, a splicing sleeve block sleeved and installed on the surface of one end of each of the two splicing rods, a mounting bolt fixedly installed in the middle of the splicing sleeve block, a positioning guide block fixedly connected to one end of the splicing sleeve block, and a supporting vertical rod movably installed through the middle of the positioning guide block;

[0006] An anti-detachment block is fixedly connected to the top of the support vertical rod, and a protective pad is fixedly connected to the bottom of the support vertical rod. A ground-mounted plate is connected to the bottom of the protective pad, and pedals are installed at both ends of the ground-mounted plate.

[0007] Preferably, the mounting bolts movably pass through the mounting bolt holes, and the splicing rod and the splicing sleeve are fixedly connected by the mounting bolts.

[0008] Preferably, a rotating shaft is fixedly installed at one end of the protective pad, and limit protective plates are symmetrically fixedly connected to both sides of the top of the ground plate. An angle-adjustable wedge-shaped metal block is attached to the surface of the ground plate, and an movable groove is opened in the middle of the bottom end of the angle-adjustable wedge-shaped metal block.

[0009] Preferably, the ground-mounted plate is rotatably connected to the rotating shaft, and the limiting protective plate is in close contact with the edge of the protective pad;

[0010] The inclined surface at the top and the bottom of the angle-adjustable wedge-shaped metal block are respectively attached to the bottom of the protective pad block and the top of the ground-mounted flat plate.

[0011] Preferably, a strong magnetic block is embedded in the center of the top of the ground-mounted flat plate, and a placement frame is fixedly installed at one end of the bottom of the supporting vertical rod, with a notch at one end of the top of the placement frame.

[0012] Preferably, the top of the strong magnetic block is flush with the top of the ground-mounted plate, and the placement frame has a placement groove inside, the size of which is the same as the size of the angle-adjusting wedge metal block.

[0013] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0014] 1. The system includes a splicing rod, splicing sleeve, mounting bolts, positioning guide block, support vertical rod, ground-mounted plate, and foot pedal. The ground-mounted plate and foot pedal limit the position of the support vertical rod, ensuring its stability during drilling. The support vertical rod guides the positioning guide block, allowing it to slide smoothly down, thus providing positioning protection for the water drill and drill bit. This improves the stability of the drill bit and prevents accidents caused by manual support without proper positioning, which could lead to drill bit tilting. This enhances overall construction safety. Furthermore, the simple locking mechanism between the splicing rod and splicing sleeve makes installation and disassembly of the support vertical rod to the water drill easy and convenient.

[0015] 2. Equipped with a rotating shaft, a limiting protective plate, an angle-adjusting wedge-shaped metal block, and a movable groove, the rotating shaft allows adjustment of the relative angle between the ground-mounted plate and the protective pad. This ensures that the supporting vertical rod remains vertical while the ground-mounted plate maintains a certain tilt angle, facilitating drilling on ramps. It also ensures that the drill bit and water drill remain vertical during ramp drilling, preventing skewed drilling that could hinder the accurate insertion and installation of subsequent handrails. Simultaneously, the angle-adjusting wedge-shaped metal block fills the angle between the ground-mounted plate and the protective pad, preventing changes in the angle that could lead to drilling errors.

[0016] 3. It is equipped with a strong magnetic block, a placement frame, and a notch. The strong magnetic block is used to attract and fix the angle adjustment wedge metal block, which improves the stability of the angle adjustment wedge metal block and prevents the angle adjustment wedge metal block from loosening during drilling, which could cause the drill bit to tilt and fail. The placement frame is used to store the angle adjustment wedge metal block, which can be stored when drilling on flat ground. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the splicing rod of this utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the angle-adjustable wedge-shaped metal block of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the strong magnetic block of this utility model;

[0023] The following are the labels in the diagram: 1. Water drill; 2. Drill bit; 3. Splicing rod; 4. Mounting screw hole; 5. Splicing sleeve; 6. Mounting bolt; 7. Positioning guide block; 8. Supporting vertical rod; 9. Anti-detachment block; 10. Protective pad block; 11. Ground plate; 12. Pedal; 13. Rotating shaft; 14. Limiting protective plate; 15. Angle-adjusting wedge-shaped metal block; 16. Movable groove; 17. Strong magnetic block; 18. Placement frame; 19. Notch. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example: Figure 1-4As shown, this utility model provides a technical solution: a water-drilling hole-opening device for handrails of stairs and barrier-free ramps, including a water drill 1, a drill bit 2 installed at the bottom of the water drill 1, splicing rods 3 symmetrically fixedly connected to both sides of the water drill 1, each splicing rod 3 having a through-hole 4 at one end, a splicing sleeve block 5 sleeved on the surface of one end of each splicing rod 3, an installation bolt 6 fixedly installed in the middle of the splicing sleeve block 5, the installation bolt 6 movably passing through the installation screw hole 4, the splicing rod 3 and the splicing sleeve block 5 being fixedly connected by the installation bolt 6, a positioning guide block 7 fixedly connected to one end of the splicing sleeve block 5, and a supporting vertical rod 8 movably installed in the middle of the positioning guide block 7;

[0026] The top of the support vertical rod 8 is fixedly connected to an anti-detachment block 9, and the bottom of the support vertical rod 8 is fixedly connected to a protective pad block 10. The bottom of the protective pad block 10 is connected to a ground-mounted plate 11, and both ends of the ground-mounted plate 11 are equipped with pedals 12. The ground-mounted plate 11 and pedals 12 limit the position of the support vertical rod 8, so that the support vertical rod 8 remains stable during drilling. The support vertical rod 8 guides the positioning guide block 7, so that it slides down stably. It plays a role in positioning and protecting the water drill 1 and the drill bit 2, improving the stability of the drill bit 2, and preventing the drill bit 2 from tilting due to the lack of limit when manually supporting the water drill 1 and the drill bit 2, which could easily cause a safety accident. It improves the overall construction safety. In addition, the locking and fixing method between the splicing rod 3 and the splicing sleeve block 5 is simple, making the installation and disassembly of the support vertical rod 8 and the water drill 1 simple and more convenient to use.

[0027] A rotating shaft 13 is fixedly installed at one end of the protective pad 10. Limiting protective plates 14 are symmetrically fixedly connected to both sides of the top of the ground plate 11. An angle-adjustable wedge-shaped metal block 15 is fitted onto the surface of the ground plate 11. A movable groove 16 is opened in the middle of the bottom end of the angle-adjustable wedge-shaped metal block 15. The ground plate 11 is rotatably connected to the rotating shaft 13. The limiting protective plate 14 is tightly attached to the edge of the protective pad 10. The inclined surface at the top and the bottom end of the angle-adjustable wedge-shaped metal block 15 are respectively attached to the bottom end of the protective pad 10 and the top end of the ground plate 11. By using the rotating shaft 13, the relative angle between the ground-mounted plate 11 and the protective pad 10 can be adjusted so that when the ground-mounted plate 11 is kept at a certain tilt angle, the supporting vertical rod 8 can still remain vertically upward to adapt to the construction of drilling on the ramp. This ensures that the drill bit 2 and the water drill 1 remain vertical during drilling on the ramp, preventing the drilling from being crooked and causing the subsequent handrail to be unable to be accurately inserted and installed. At the same time, the angle-adjusting wedge-shaped metal block 15 is used to fill the included angle between the ground-mounted plate 11 and the protective pad 10 to prevent the included angle from changing and causing drilling errors.

[0028] A strong magnet 17 is embedded in the top center of the ground-mounted flat plate 11. A placement frame 18 is fixedly installed at one end of the bottom of the support rod 8. A notch 19 is opened at one end of the top of the placement frame 18. The top of the strong magnet 17 is flush with the top of the ground-mounted flat plate 11. A placement groove is opened inside the placement frame 18. The size of the placement groove is the same as the size of the angle adjustment wedge metal block 15. The strong magnet 17 plays a role in adsorbing and fixing the angle adjustment wedge metal block 15, which improves the stability of the placement of the angle adjustment wedge metal block 15 and prevents the angle adjustment wedge metal block 15 from loosening during drilling, causing the drill bit 2 to tilt and fail. The placement frame 18 plays a role in storing the angle adjustment wedge metal block 15. When drilling on flat ground, the idle angle adjustment wedge metal block 15 is stored.

[0029] The working principle and usage process of this utility model: Workers select the appropriate location to drill holes in the stairs and accessible ramps, and insert the handrail directly into the holes to ensure stable installation. First, the appropriate location needs to be selected for drilling. If drilling is required on horizontal surfaces such as stairs, the angle-adjustable wedge-shaped metal block 15 is stored inside the placement frame 18, ensuring that the top of the ground-mounted plate 11 and the top of the protective pad 10 are tightly against each other. Depending on the location of the drilled hole, it can be fixed to the ground using the step 12. 1. Lock and fix the support rod 8 so that it is vertically upward. The water drill 1 and the positioning guide block 7 are spliced ​​and fixed by the splicing rod 3 and the splicing sleeve block 5, which plays a positioning and guiding role for the water drill 1 and the drill bit 2. At this time, the water drill 1 and the drill bit 2 remain vertical. The bottom end of the drill bit 2 is aligned with the position on the stair plane where a hole needs to be drilled. The water drill 1 and the drill bit 2 are used to open the hole. During the hole opening process, the water drill 1 and the drill bit 2 are gradually pressed downward. The positioning guide block 7 moves vertically downward along the support rod 8, so that the water drill 1 and the drill bit 2 remain vertical and continue to move downward.

[0030] If it is necessary to make holes in ramps such as accessible ramps, the handrails need to be installed vertically. Therefore, the holes to be made also need to be vertical. Rotate the ground plate 11 around the rotating axis 13 so that the ground plate 11 is close to the ramp. Fix the pedal 12 on one side of the ramp where the hole needs to be made. Adjust the position of the support rod 8 so that the support rod 8 and the water drill 1 are vertical. The drill bit 2 corresponds to the position where the hole needs to be made. There is a certain angle between the ground plate 11 and the protective pad 10. The angle corresponds to the angle of the ramp. Take the angle adjustment wedge metal block 15 out of the placement frame 18 through the notch 19 and insert it into the gap between the ground plate 11 and the protective pad 10. The strong magnet 17 magnetically attracts the angle adjustment wedge metal block 15 so that the angle adjustment wedge metal block 15 will not loosen or fall off and will not affect the placement and installation of the angle adjustment wedge metal block 15. The limiting protective plates 14 on both sides also limit the angle adjustment wedge metal block 15.

[0031] The angle-adjusting wedge-shaped metal block 15 ensures that the included angle between the ground-mounted plate 11 and the protective pad block 10 does not change, thereby keeping the supporting vertical rod 8 and the water drill 1 vertical. By using the water drill 1 and the drill bit 2 to move vertically downward along the supporting vertical rod 8, a hole can be drilled vertically on the ramp. Subsequently, the handrail is taken out, its bottom end is inserted into the drilled hole, and the gap between the hole and the bottom end of the handrail is filled with concrete, which improves the installation stability of the handrail and keeps the surface of the stairs and ramp flat.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water-drilling device for staircases and barrier-free ramp handrails, comprising a water drill (1), characterized in that: The bottom end of the water drill (1) is equipped with a drill bit (2). The two sides of the water drill (1) are symmetrically connected with splicing rods (3). One end of each splicing rod (3) is provided with a mounting screw hole (4). A splicing sleeve block (5) is sleeved on one end of each splicing rod (3). A mounting bolt (6) is fixedly installed in the middle of the splicing sleeve block (5). A positioning guide block (7) is fixedly connected to one end of the splicing sleeve block (5). A support vertical rod (8) is movably installed through the middle of the positioning guide block (7). The top end of the support rod (8) is fixedly connected to an anti-detachment block (9), the bottom end of the support rod (8) is fixedly connected to a protective pad (10), the bottom of the protective pad (10) is connected to a ground-mounted flat plate (11), and both ends of the ground-mounted flat plate (11) are equipped with pedals (12).

2. The water-drilling device for staircases and barrier-free ramp handrails according to claim 1, characterized in that, The mounting bolt (6) is movably inserted through the mounting screw hole (4), and the splicing rod (3) and the splicing sleeve (5) are fixedly connected by the mounting bolt (6).

3. The water-drilling device for staircases and barrier-free ramp handrails according to claim 1, characterized in that, A rotating shaft (13) is fixedly installed at one end of the protective pad (10), and a limit protection plate (14) is symmetrically fixedly connected to the two sides of the top of the ground plate (11). An angle-adjustable wedge-shaped metal block (15) is attached to the surface of the ground plate (11), and an movable groove (16) is opened in the middle of the bottom end of the angle-adjustable wedge-shaped metal block (15).

4. The water-drilling device for staircases and barrier-free ramp handrails according to claim 3, characterized in that, The ground-mounted flat plate (11) is rotatably connected to the rotating shaft (13), and the limiting protective plate (14) is in close contact with the edge of the protective pad (10); The inclined surface at the top and the bottom of the angle-adjustable wedge metal block (15) are respectively attached to the bottom of the protective pad block (10) and the top of the ground plate (11).

5. The water-drilling device for staircases and barrier-free ramp handrails according to claim 1, characterized in that, A strong magnetic block (17) is embedded in the middle of the top of the ground flat plate (11), and a placement frame (18) is fixedly installed at one end of the bottom of the support vertical rod (8). A notch (19) is opened at one end of the top of the placement frame (18).

6. The water-drilling device for staircases and barrier-free ramp handrails according to claim 5, characterized in that, The top of the strong magnetic block (17) is flush with the top of the ground plate (11), and the placement frame (18) has a placement groove inside, the size of which is the same as the size of the angle-adjusting wedge metal block (15).