Bridge anti-collision guardrail drilling positioning device

CN224615206UActive Publication Date: 2026-08-11NINGXIA HIGHWAY ENG SUPERVISION & CONSULTATION CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0002]桥梁防撞护栏是设置于桥梁上的重要安全设施,用于防止失控车辆越出桥外,保障行车安全,桥梁防撞护栏在安装时,需要在桥梁上的混凝土护墙上打孔,然后将桥梁防撞护栏安装在护墙的位置,由于混凝土较硬,并且是在侧面打孔,需要工作人员较长时间握持电钻,劳动强度较大,所以现有技术中,一般会在混凝土护墙顶面打孔,然后将固定外框限位在护墙顶部,然后通过齿轮传动的方式来对电钻进行位置微调,这样无需工作人员一直手持,降低劳动强度,但是在实际的使用过程中,钻孔有泥浆飞溅,长期以往,很容易导致齿轮位置被泥浆包覆,这样影响电钻的顺利微调,给操作人员带来难度

Benefits of technology

[0015]一、通过设置的钻孔定位组件和防凝结组件的相互配合,达到在使用时,利用钻孔过程中冲刷的水流,达到钻孔过程中,始终对整个齿条和齿轮的位置进行流动冲洗,避免泥浆淤积,影响电钻微调的问题,确保工作人员的流畅操作调整。

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Abstract

This utility model discloses a drilling positioning device for bridge anti-collision guardrails, including a drilling positioning component. The drilling positioning component includes a fixed outer frame, a mounting slot on the side of the fixed outer frame, a rack penetrating the mounting slot, a cylinder fixed within the mounting slot, a first round shaft fitted to the cylinder, a gear fixed to the first round shaft, a second round shaft fixed to the top surface of the gear, a long rod connected to the second round shaft, a concave frame fixed to the end of the rack, a side plate fixed to the side wall of the concave frame, and a limiting rod penetrating the side plate. An anti-condensation component includes a sliding groove on the rack. This utility model, through the cooperation of the drilling positioning component and the anti-condensation component, achieves continuous flushing of the rack and gear during drilling by utilizing the water flow, preventing mud accumulation and ensuring smooth operation and adjustment by the operator.
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Description

Technical Field

[0001] This utility model relates to the field of drilling positioning technology, specifically a drilling positioning device for bridge anti-collision guardrails. Background Technology

[0002] Bridge crash barriers are important safety facilities installed on bridges to prevent out-of-control vehicles from going off the bridge and ensure traffic safety. Installation requires drilling holes in the concrete retaining wall of the bridge before installing the crash barriers. Because concrete is hard and drilling is done on the side, workers need to hold the drill for extended periods, resulting in high labor intensity. Therefore, current technology typically involves drilling holes in the top of the concrete retaining wall, fixing the outer frame at the top, and then using gear transmission to fine-tune the drill's position. This eliminates the need for constant hand-holding and reduces labor intensity. However, in actual use, drilling produces mud splashes, which over time can easily cause the gears to become covered in mud, hindering smooth drill adjustments and making operation more difficult. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a drilling positioning device for bridge anti-collision guardrails. Through the cooperation of the drilling positioning component and the anti-condensation component, the device utilizes the water flow during the drilling process to continuously flush the entire rack and gear position, preventing mud accumulation and ensuring smooth operation and adjustment by the operator.

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: a drilling and positioning device for bridge anti-collision guardrails, comprising:

[0005] A drilling positioning assembly includes a fixed outer frame, a mounting slot on the side of the fixed outer frame, a rack penetrating the mounting slot, a cylinder fixed in the mounting slot, a first round shaft fitted with the cylinder, a gear fixed to the first round shaft, a second round shaft fixed to the top surface of the gear, a long rod connected to the second round shaft, a concave frame fixed to the end of the rack, a side plate fixed to the side wall of the concave frame, and a limiting rod penetrating the side plate.

[0006] An anti-condensation component includes a groove on the rack, a long strip plate inserted into the groove, a horizontal water collection pipe attached to the top surface of the long strip plate, a vertical plate fixed to the bottom surface of the horizontal water collection pipe, a threaded hole on the vertical plate, a threaded pipe connected to the side end of the horizontal water collection pipe, a water outlet pipe connected to the horizontal water collection pipe, and a long notch groove on one side of the top surface of the rack.

[0007] In a preferred embodiment of the bridge anti-collision guardrail drilling positioning device of this utility model, the second circular shaft drives the gear to rotate, and the gear drives the first circular shaft to rotate along the inner wall of the cylinder.

[0008] In a preferred embodiment of the bridge anti-collision guardrail drilling positioning device of this utility model, the gear and the rack mesh with each other, and the rack slides horizontally along the mounting groove.

[0009] In a preferred embodiment of the bridge anti-collision guardrail drilling positioning device of this utility model, the concave frame fits into the cement retaining wall on the bridge, and the limiting rod fits into the hole on the top surface of the cement retaining wall.

[0010] As a preferred embodiment of the bridge anti-collision guardrail drilling positioning device of this utility model, the water outlet pipe is provided in a plurality of parts, and the plurality of water outlet pipes are distributed at equal intervals.

[0011] The water outlet pipe is located on the top surface of the long, notched groove.

[0012] As a preferred embodiment of the bridge anti-collision guardrail drilling positioning device of this utility model, it further includes a limiting component, which includes a ratchet fixed to the outer wall of the second round shaft, an I-shaped rod fixed to the top surface of the fixed outer frame, and a stop bar sleeved with the I-shaped rod.

[0013] As a preferred embodiment of the bridge anti-collision guardrail drilling positioning device of this utility model, the limiting component further includes an arc-shaped plate fixed on the top surface of the fixed outer frame and a spring connecting the arc-shaped plate to the stop bar.

[0014] Compared with the prior art, the advantages of this utility model are:

[0015] 1. By combining the drilling positioning components and the anti-condensation components, the water flow during drilling ensures that the entire rack and gear are constantly flushed, preventing mud accumulation and ensuring smooth operation and adjustment by the operator.

[0016] Second, by setting a limit component, the rotation of the entire gear is limited in one direction, allowing the operator to move the electric drill forward smoothly and automatically lock it. When the electric drill needs to be adjusted back, it needs to be manually contacted to ensure the safety of operation and avoid the electric drill being accidentally thrown out. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a structural diagram of the present invention;

[0019] Figure 2 This is a diagram showing the meshing structure of the gear and rack of this utility model;

[0020] Figure 3 This is a structural diagram showing the position of the first circular shaft and the cylinder of this utility model;

[0021] Figure 4 This is a structural diagram of the anti-condensation component of this utility model;

[0022] Figure 5 This is a structural diagram showing the location of the elongated notch groove of this utility model;

[0023] Figure 6 This is a structural diagram of the limiting component of this utility model.

[0024] In the diagram: 11. Fixed outer frame; 12. Mounting slot; 13. Rack; 14. Gear; 15. First round shaft; 16. Cylinder; 17. Second round shaft; 18. Long rod; 19. Concave frame; 110. Side plate; 111. Limiting rod; 21. Sliding groove; 22. Long strip plate; 23. Water collection horizontal pipe; 24. Vertical plate; 25. Threaded hole; 26. Threaded pipe; 27. Water outlet pipe; 28. Long strip notched groove; 31. Ratchet; 32. I-shaped rod; 33. Stop bar; 34. Arc-shaped plate; 35. Spring. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] This utility model provides a drilling positioning device for bridge anti-collision guardrails. Through the cooperation of the drilling positioning component and the anti-condensation component, the water flow during the drilling process is used to continuously flush the entire rack and gear position, avoiding mud accumulation and affecting the fine adjustment of the electric drill, thus ensuring smooth operation and adjustment by the operator.

[0030] Figures 1-6 The diagram shown is an overall structural schematic of an embodiment of the drilling and positioning device for bridge crash barriers according to this utility model. Please refer to [link / reference]. Figures 1-6 The main structure of this embodiment includes: a drilling positioning assembly and an anti-condensation assembly.

[0031] The drilling positioning assembly is used to limit the position of the electric drill and avoid fine-tuning of the position. Specifically, the drilling positioning assembly includes a fixed outer frame 11, a mounting slot 12 opened on the side of the fixed outer frame 11, a rack 13 passing through the mounting slot 12, a cylinder 16 fixed in the mounting slot 12, a first round shaft 15 fitted with the cylinder 16, a gear 14 fixed to the first round shaft 15, a second round shaft 17 fixed to the top surface of the gear 14, a long rod 18 connected to the second round shaft 17, a concave frame 19 fixed to the end of the rack 13, a side plate 110 fixed to the side wall of the concave frame 19, and a limiting rod 111 passing through the side plate 110.

[0032] In practical use, the user directly engages the concave frame 19 with the retaining wall position on the bridge and fits the limiting rod 111 with the hole on the top surface of the cement retaining wall, thus limiting the entire rack 13. During use, the user turns the long rod 18, which drives the second round shaft 17 to rotate. The second round shaft 17 drives the gear 14 to rotate, and the gear 14 drives the first round shaft 15 to rotate along the inner wall of the cylinder 16. Since the gear 14 meshes with the rack 13, the entire fixed outer frame 11 can be pushed forward, thereby moving the electric drill to perform drilling operations.

[0033] The anti-condensation component is used to prevent the mud from condensing and affecting the rotation adjustment of the gear 14. Specifically, the anti-condensation component includes a groove 21 opened on the rack 13, a long strip plate 22 inserted into the groove 21, a water collection horizontal pipe 23 attached to the top surface of the long strip plate 22, a vertical plate 24 fixed to the bottom surface of the water collection horizontal pipe 23, a threaded hole 25 opened on the vertical plate 24, a threaded pipe 26 connected to the side end of the water collection horizontal pipe 23, a water outlet pipe 27 connected to the water collection horizontal pipe 23, and a long notch 28 opened on one side of the top surface of the rack 13.

[0034] In practical use, the user connects to the external water pipe through the threaded pipe 26. During drilling, water flows through the threaded pipe 26 into the water collection horizontal pipe 23 and is finally discharged through the distributed water outlet pipes 27. The water flow directly flushes the entire rack 13 and gear 14, thus preventing the rack 13 and gear 14 from being covered by mud, which would affect the smooth adjustment. In addition, the user can directly pull out the long strip plate 22 from the sliding groove 21 for easy replacement. The structural design of the long strip notch 28 prevents the water outlet pipe 27 from protruding and affecting the horizontal displacement of the fixed outer frame 11.

[0035] Furthermore, it also includes a limiting assembly, which includes a ratchet 31 fixed to the outer wall of the second round shaft 17, an I-shaped rod 32 fixed to the top surface of the fixed outer frame 11, and a stop rod 33 fitted with the I-shaped rod 32; the limiting assembly also includes an arc-shaped plate 34 fixed to the top surface of the fixed outer frame 11 and a spring 35 connecting the arc-shaped plate 34 and the stop rod 33.

[0036] In practical use, the spring 35 pushes the stop lever 33 to rotate along the I-beam 32, directly abutting the stop lever 33 against the ratchet 31, achieving one-way limit on the ratchet 31, allowing the operator to smoothly move the electric drill forward and automatically lock it. When the electric drill needs to be adjusted back, the stop lever 33 needs to be manually moved to disengage it from the ratchet 31, compressing the spring 35. After the adjustment is complete, the stop lever 33 is released, and the spring 35 returns to its original position, thus restoring the one-way limit. This ensures the safety of operation and avoids the electric drill from being accidentally thrown out.

[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A bridge crash barrier drilling positioning device, characterized by, include: A drilling positioning assembly includes a fixed outer frame (11), a mounting slot (12) on the side of the fixed outer frame (11), a rack (13) penetrating the mounting slot (12), a cylinder (16) fixed in the mounting slot (12), a first round shaft (15) fitted with the cylinder (16), a gear (14) fixed to the first round shaft (15), a second round shaft (17) fixed to the top surface of the gear (14), a long rod (18) connected to the second round shaft (17), a concave frame (19) fixed to the end of the rack (13), a side plate (110) fixed to the side wall of the concave frame (19), and a limiting rod (111) penetrating the side plate (110). The anti-condensation component includes a groove (21) on the rack (13), a long strip plate (22) inserted into the groove (21), a water collection horizontal pipe (23) attached to the top surface of the long strip plate (22), a vertical plate (24) fixed to the bottom surface of the water collection horizontal pipe (23), a threaded hole (25) on the vertical plate (24), a threaded pipe (26) connected to the side end of the water collection horizontal pipe (23), a water outlet pipe (27) connected to the water collection horizontal pipe (23), and a long notch (28) on one side of the top surface of the rack (13).

2. The bridge anti-collision guardrail drilling positioning device according to claim 1, characterized in that, The second circular shaft (17) drives the gear (14) to rotate, and the gear (14) drives the first circular shaft (15) to rotate along the inner wall of the cylinder (16).

3. The bridge anti-collision guardrail drilling and positioning device according to claim 1, characterized in that, The gear (14) meshes with the rack (13), and the rack (13) slides horizontally along the mounting slot (12).

4. The bridge anti-collision guardrail drilling and positioning device according to claim 1, characterized in that, The concave frame (19) fits into the cement retaining wall on the bridge, and the limiting rod (111) fits into the hole on the top surface of the cement retaining wall.

5. A bridge crash barrier drilling and positioning device according to claim 1, characterized in that, The water outlet pipe (27) is provided in several parts, and the several water outlet pipes (27) are distributed at equal intervals; wherein, the water outlet pipe (27) is located on the top surface of the long notch groove (28).

6. The bridge anti-collision guardrail drilling positioning device according to claim 1, characterized in that: It also includes a limiting component, which includes a ratchet (31) fixed to the outer wall of the second round shaft (17), an I-shaped rod (32) fixed to the top surface of the fixed outer frame (11), and a stop rod (33) fitted with the I-shaped rod (32).

7. A bridge crash barrier drilling and positioning device according to claim 6, characterized in that: The limiting assembly also includes an arc-shaped plate (34) fixed to the top surface of the fixed outer frame (11) and a spring (35) connecting the arc-shaped plate (34) to the stop bar (33).