Breaking device for road and bridge construction

By adjusting the drill rod depth through the cooperation of the sleeve rod and the moving plate, the problem of uneven drilling depth in existing hand-held drills during road and bridge construction has been solved, achieving uniform depth and preventing debris from splashing, thus improving construction quality and the service life of the equipment.

CN223963807UActive Publication Date: 2026-03-03霍锐
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing hand-held drills are difficult to use in road and bridge construction to ensure consistent drilling depth, resulting in uneven breaking depth and affecting construction quality.

Method used

A demolition device for road and bridge construction was designed. The drilling depth can be adjusted by the cooperation of the sleeve rod and the moving plate. Rubber strips and vertical rods prevent debris from flying and protect the workers and equipment.

Benefits of technology

To ensure uniformity of drilling depth, prevent debris splashing, and improve construction quality and equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a breaking device for road and bridge construction, which relates to the technical field of breaking equipment, and comprises a hand drill body, the bottom end of the hand drill body is connected with a drill rod, the outer side of the hand drill body is sleeved with a connecting ring, and the side edge of the connecting ring is connected with a loop bar. The sleeve rod and the movable plate are arranged, in the using process, the sleeve rod and the movable plate are matched with each other, the height of the movable plate can be adjusted, and therefore the drilling depth of the drill rod can be adjusted, the uniformity of the drilling depth of each time can be guaranteed, the situation that the breaking depth is not enough or excessive can be avoided, and the drilling efficiency is improved. According to the device, a rubber strip and a vertical rod are arranged, in the using process, through the arrangement of the rubber strip and the vertical rod, chippings can be blocked, so that the chippings can be effectively prevented from splashing to the hands of a worker, through the arrangement of the vertical rod and a second spring, the chippings can be prevented from directly colliding with a moving plate, and the service life of the moving plate is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of demolition equipment technology, and in particular to a demolition device for road and bridge construction. Background Technology

[0002] Road and bridge construction refers to the construction process of roads and bridges. When road and bridge construction requires the renovation and upgrading of old roads, part or all of the old road surface will be demolished. The road can be widened and thickened, and high-quality road surface materials can be laid to improve the road's load-bearing capacity and traffic capacity. In the process of demolishing the old road surface, hand drills are used.

[0003] Currently, existing hand-held drills, once powered on, activate an internal motor that converts electrical energy into mechanical energy, driving the drill rod to rotate and break up the road surface. However, in actual construction, workers need to ensure consistent drilling depth at different locations on the road to guarantee the smoothness and stability of subsequent construction. Because the drill rod structure of existing hand-held drills is relatively simple, it is difficult for workers to ensure the same drilling depth each time. This can lead to over-breaking in some areas, affecting the overall smoothness of the road structure, while in other areas, the breaking depth is insufficient to completely remove the damaged layer or provide enough space for subsequent construction, thus posing a risk to the overall construction quality. Therefore, we propose a road and bridge construction breaking device to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a demolition device for road and bridge construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A demolition device for road and bridge construction includes a hand-held drill body, a drill rod connected to the bottom end of the hand-held drill body, a connecting ring sleeved on the outer side of the hand-held drill body, and a sleeve rod connected to the side of the connecting ring. An insertion rod is inserted inside the sleeve rod, and the bottom end of the insertion rod is connected to a moving plate. A positioning rod is inserted laterally at the bottom end of the sleeve rod, and one end of the positioning rod is connected to a pulling plate. The other end of the positioning rod extends into the insertion rod, and the insertion rod has evenly spaced slots that match the positioning rod.

[0007] Preferably, the inner side of the pull piece is symmetrically connected with connecting rods, and the other end of the connecting rod is connected to the outer wall of the sleeve rod through a first spring.

[0008] Preferably, the connecting rod is configured as an L-shaped structure, with a hole inside the connecting rod, and a fixing rod inserted inside the hole, the side of the fixing rod being connected to the outer wall of the sleeve rod.

[0009] Preferably, the movable plate has a circular hole inside that matches the drill rod, and the movable plate is configured in a trumpet shape.

[0010] Preferably, rubber strips are evenly distributed at the bottom end of the movable plate, and the rubber strips are configured in an L-shape.

[0011] Preferably, the rubber strips are vertically connected to a second spring on one side of each other, and the other end of the second spring is connected to the bottom end of the moving plate.

[0012] Preferably, vertical rods are inserted at the bottom end of the rubber strip at positions corresponding to the second spring, and the bottom ends of the vertical rods are connected to the rubber strip.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This device is equipped with a sleeve rod and a movable plate. During use, the height of the movable plate can be adjusted by the cooperation of the sleeve rod and the movable plate, thereby adjusting the drilling depth of the drill rod to ensure the uniformity of the drilling depth each time, thus avoiding insufficient or excessive drilling depth.

[0015] 2. This device is equipped with rubber strips and vertical rods. During use, the rubber strips and vertical rods can block debris, effectively preventing debris from flying onto the workers' hands. In addition, the vertical rods and second springs can prevent debris from directly colliding with the moving plate, thus ensuring the service life of the moving plate. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a demolition device for road and bridge construction proposed in this utility model;

[0017] Figure 2 for Figure 1 A three-dimensional cross-sectional schematic diagram of the hand-held drill body and drill rod structure;

[0018] Figure 3 for Figure 1 A three-dimensional cross-sectional schematic diagram of the sleeve rod and insertion rod structure in the middle;

[0019] Figure 4 for Figure 1 A three-dimensional cross-sectional diagram of the rubber strip and vertical rod structure.

[0020] In the diagram: 1. Hand-held drill body; 2. Drill rod; 3. Connecting ring; 4. Sleeve rod; 5. Insertion rod; 6. Positioning rod; 7. Pulling plate; 8. Connecting rod; 9. First spring; 10. Fixing rod; 11. Moving plate; 12. Rubber strip; 13. Vertical rod; 14. Second spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A demolition device for road and bridge construction includes a hand-held drill body 1, with a drill rod 2 connected to the bottom end of the hand-held drill body 1. The working principle of the hand-held drill body 1 and the drill rod 2 is existing technology and will not be described in detail here. A connecting ring 3 is sleeved on the outside of the hand-held drill body 1, and a sleeve rod 4 is connected to the side of the connecting ring 3. An insertion rod 5 is inserted inside the sleeve rod 4, and the bottom end of the insertion rod 5 is connected to a moving plate 11. A positioning rod 6 is inserted laterally at the bottom end of the sleeve rod 4, and one end of the positioning rod 6 is connected to a pulling piece 7. The other end of the positioning rod 6 extends into the insertion rod 5. The insertion rod 5 has evenly spaced slots that match the positioning rod 6. During use, by opening multiple sets of slots, it is convenient for workers to laterally limit the insertion rod 5 when it is moved to a suitable height, thereby adjusting the height of the moving plate 11 to adjust the drilling depth of the drill rod 2, thus ensuring uniformity in the drilling process of this device.

[0023] Furthermore, refer to Figure 3 It can be seen that the inner side of the pull plate 7 is symmetrically connected with the connecting rod 8, and the other end of the connecting rod 8 is connected to the outer wall of the sleeve rod 4 through the first spring 9. In use, the connecting rod 8 and the first spring 9 cooperate to apply elastic force to the positioning rod 6 inserted into the slot, so as to ensure its reliability when inserted into the slot on the side of the insertion rod 5.

[0024] Furthermore, refer to Figure 3 It can be seen that the connecting rod 8 is set with an L-shaped structure. The connecting rod 8 has a hole inside, and a fixing rod 10 is inserted into the hole. The side of the fixing rod 10 is connected to the outer wall of the sleeve rod 4. In use, the connecting rod 8 and the fixing rod 10 cooperate with each other to achieve lateral guidance of the positioning rod 6 and the pulling piece 7, thereby effectively preventing the first spring 9 from tilting when subjected to tension, thus effectively ensuring the service life of the first spring 9.

[0025] Furthermore, refer to Figure 1 and Figure 2 It can be seen that the moving plate 11 has a round hole inside that matches the drill rod 2. The moving plate 11 is shaped like a trumpet. The opening of the round hole can meet the need for the moving plate 11 to slide normally along the outer wall of the drill rod 2. Since the moving plate 11 is shaped like a trumpet, it can block the debris generated during the drilling process to prevent the debris from flying onto the workers' hands.

[0026] Furthermore, refer to Figure 1 , Figure 2 and Figure 4 It can be seen that rubber strips 12 are evenly distributed at the bottom of the movable plate 11, and the rubber strips 12 are set in an L-shaped structure. During use, the multiple sets of L-shaped rubber strips 12 can prevent debris from directly colliding with the movable plate 11, thereby increasing the structural strength of the movable plate 11 and protecting it from collision forces.

[0027] Furthermore, refer to Figure 4 It can be seen that the rubber strips 12 are vertically connected to each other on one side, and the other end of the second spring 14 is connected to the bottom end of the moving plate 11. When debris splashes onto the rubber strips 12, the second spring 14 connected between the rubber strips 12 and the moving plate 11 can further buffer the impact force, thereby achieving the protection effect on the outer wall of the moving plate 11.

[0028] Furthermore, refer to Figure 4 It can be seen that vertical rods 13 are inserted at the bottom end of the rubber strip 12 and at the corresponding positions of the second spring 14, and the bottom end of the vertical rods 13 is connected to the rubber strip 12. During use, the vertical rods 13 inserted into the moving plate 11 and the second spring 14 can be used to guide the rubber strip 12 vertically. When the rubber strip 12 is under force, the vertical rods 13 can rub against the inner wall of the reserved hole inside the moving plate 11 to generate damping, so as to achieve further protection of the rubber strip 12.

[0029] Working Principle: In use, the operator can pull the pulling plate 7 laterally according to the condition of the old road surface, thereby moving the positioning rod 6 simultaneously to pull the positioning rod 6 out of the slot on the side of the insertion rod 5. Then, the operator can pull the insertion rod 5 to make it slide along the inner wall of the sleeve rod 4, thereby adjusting the height of the moving plate 11. When the moving plate 11 is adjusted to a suitable height, the operator can stop pulling the pulling plate 7, so that the positioning rod 6 is re-embedded into the corresponding slot on the side of the insertion rod 5, thereby limiting the insertion rod 5 again. Then, the operator can connect the power supply to the portable drill body 1 and align the drill rod 2 with the ground to be broken. During the breaking process, by adjusting the moving plate 11 to a suitable position, the drilling depth of the drill rod 2 can be adjusted to prevent over-breaking or under-breaking, thereby effectively ensuring the uniformity of the breaking process of this device. The above is the complete working principle of this utility model.

[0030] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0031] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0032] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A breaking device for road and bridge construction, comprising a hand-held drill body (1), characterized in that, The bottom end of the hand-held drill body (1) is connected with a drill rod (2), the outer side of the hand-held drill body (1) is sleeved with a connecting ring (3), the side of the connecting ring (3) is connected with a sleeve rod (4), the inside of the sleeve rod (4) is inserted with an inserted rod (5), the bottom end of the inserted rod (5) is connected with a moving plate (11), the bottom end of the sleeve rod (4) is transversely inserted with a positioning rod (6), one end of the positioning rod (6) is connected with a pulling piece (7), the other end of the positioning rod (6) extends into the inserted rod (5), and the inside of the inserted rod (5) is uniformly provided with a groove hole matched with the positioning rod (6).

2. The breaking device for road and bridge construction according to claim 1, characterized in that, The inner side of the pulling piece (7) is symmetrically connected with a connecting rod (8), and the other end of the connecting rod (8) is connected with the outer wall of the sleeve rod (4) through a first spring (9).

3. The device for breaking up according to claim 2, characterized in that, The connecting rod (8) is provided in an L-shaped structure, a hole is formed in the inside of the connecting rod (8), and a fixing rod (10) is inserted in the inside of the hole, and the side of the fixing rod (10) is connected with the outer wall of the sleeve rod (4).

4. The road and bridge construction breaking device according to claim 1, characterized in that, A circular hole matched with the drill rod (2) is formed in the inside of the moving plate (11), and the moving plate (11) is provided in a horn shape.

5. The road and bridge construction breaking device according to claim 1, characterized in that, The bottom end of the moving plate (11) is uniformly distributed with rubber strips (12), and the rubber strips (12) are provided in an L-shaped structure.

6. The device for breaking up according to claim 5, characterized in that, The rubber strips (12) on the side close to each other are vertically connected with a second spring (14), and the other end of the second spring (14) is connected with the bottom end of the moving plate (11).

7. The road and bridge construction breaking device according to claim 5, characterized in that Vertical rods (13) are respectively inserted at positions corresponding to the second spring (14) at the bottom end of the rubber strips (12), and the bottom end of the vertical rod (13) is connected with the rubber strip (12).