Power assisting device of percussion drill

By designing the support cylinder, support rod, and limiting components, the problems of low construction efficiency and poor safety in traditional impact drilling operations at heights are solved. The support rod is raised and lowered safely and efficiently, improving both construction efficiency and safety.

CN223961486UActive Publication Date: 2026-03-03永康市佳奇工具有限公司
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520375602.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-03-03
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

Traditional impact drills suffer from low construction efficiency and poor safety when drilling at heights. In particular, the current technology is prone to injuring workers and is inefficient when the support rod is lowered.

Method used

An impact drill assist device was designed, comprising a support cylinder, a support rod, a limiting component, and a drive component. Through the cooperation of gears and a rotating shaft, the support rod can be raised and lowered safely and conveniently. The limiting component is used to quickly retract the support rod, preventing accidental injury to workers from handle rotation and improving construction efficiency.

Benefits of technology

It enables safe and convenient lifting and lowering of the support rod, avoids the risk of accidental injury from rotating the handle, and improves construction efficiency and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223961486U_ABST
    Figure CN223961486U_ABST
Patent Text Reader

Abstract

The utility model discloses a percussion drill power assisting device, and relates to the technical field of percussion drills, in particular to a percussion drill power assisting device which comprises a percussion drill, a base, a supporting cylinder, a supporting rod, a mounting plate, a limiting component and a driving component. A plurality of tooth grooves which are longitudinally arranged are carved in one side wall of the supporting rod; the supporting rod is driven by the driving component to lift and slide in the supporting cylinder, and the supporting rod is limited and fixed in the supporting cylinder through the limiting component. When the supporting rod needs to be retracted into the supporting cylinder, the driving part slides along the arc-shaped groove, so that meshing between the gear and the tooth groove in the supporting rod is canceled; when one end of the rotating plate is pressed, the rotating plate drives the clamping plate to locally rotate around the rotating rod, the clamping plate is separated from the tooth groove of the supporting rod, the clamping plate cancels limiting supporting on the supporting rod, the supporting rod rapidly descends and retracts into the supporting cylinder under the action of gravity, and the purpose of rapidly folding the supporting rod is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of impact drilling technology, specifically an impact drilling assist device. Background Technology

[0002] In construction, impact drills are commonly used for drilling at heights such as rooftops. However, traditional methods typically require workers to climb ladders or erect scaffolding. This approach presents numerous problems, severely impacting construction efficiency and safety. First, while ladders are lightweight and portable, their structural stability is poor, allowing only single-person operation, and they are prone to swaying at heights, increasing operational risks. Second, although scaffolding provides a relatively stable working platform, its assembly and disassembly are complex, and its movement is inconvenient, especially in confined spaces like rooftops, where frequent scaffolding movement consumes significant time and manpower.

[0003] In a published Chinese patent application (publication number CN219616762U), titled "An Impact Drill Assist Device," the prior art describes a drilling process where the impact drill is first fixed to a support. The drill assist device is then moved to a suitable position, and a limiting member is rotated to disengage from the first gear's slot, releasing the telescopic pole's lock. The operator then rotates a handle to control the shaft's rotation, which in turn rotates a second gear. This rotation moves a rack, which in turn raises or lowers a first sliding rod, thus adjusting the telescopic pole's height. Once the telescopic pole is at the desired height, the handle is rotated further to raise it, allowing the drill bit to enter the station roof and complete the drilling operation. After drilling, the handle is rotated in the opposite direction to lower the pole and remove the drill bit. The drill assist device is then moved to the next location to continue drilling. This entire drilling process eliminates the need for operators to climb, effectively avoiding the safety hazards associated with working at heights. Although the prior art can solve the above problems, it has certain limitations in practical implementation.

[0004] In the existing technology, the second gear is fixedly mounted on a fixed plate via a rotating shaft, and the handle is fixedly mounted on the second gear. After drilling is completed, the first sliding rod slides down within the fixed rod. Without the operator controlling the handle, the first sliding rod descends rapidly under gravity, pushing the second gear and the handle to rotate. This high-speed rotation of the handle can easily injure the operator. If the operator drives the first sliding rod to descend by rotating the handle, the first sliding rod retracts slowly, affecting construction efficiency. Therefore, this invention addresses the shortcomings of the existing technology. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an impact drill assist device that solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an impact drill assist device, comprising an impact drill, a base, a support cylinder, a support rod, a mounting plate, a limiting component, and a driving component. The lower part of the support rod is inserted into the support cylinder and the two are slidably connected. Multiple longitudinally arranged toothed grooves are engraved on one side wall of the support rod. A first through groove and a second through groove are respectively opened on the lower side wall of the support cylinder. Two protruding plates are fixedly connected to one side wall of the support cylinder at the first through groove, and arc-shaped grooves are opened on the protruding plates. The driving component includes a gear, a rotating shaft, and a handle. The gear passes through the middle of the rotating shaft, and both rotate. The shaft is connected in a manner where both ends are inserted into the arc-shaped grooves of two raised plates. The shaft is slidably connected to the raised plates via the arc-shaped grooves and is also rotatably connected to the raised plates via the arc-shaped grooves. The handle is fixedly installed on the outer wall of the gear and the two are fixedly connected. The teeth of the gear mesh with the tooth grooves on the support rod. The limiting component includes a rotating plate, a clamping plate, and a rotating rod. The rotating plate is generally L-shaped. The middle part of the rotating rod is fixedly connected to the rotating plate. The upper end of the rotating plate is fixedly connected to the clamping plate. Both ends of the rotating rod are rotatably connected to the support cylinder. After the rotating plate partially rotates around the rotating rod, the rotating plate drives the clamping plate to move, and the clamping plate engages with the tooth grooves on the support rod.

[0009] Optionally, the mounting plate is fixedly mounted on the upper side wall of the support rod, and the impact drill is fixedly mounted on the mounting plate.

[0010] Optionally, the lower end of the support cylinder is fixedly connected to the base, and multiple rollers are fixedly installed on the lower part of the base.

[0011] Optionally, the limiting component further includes a support plate and a spring. The support plate is fixedly connected to the outer wall of the support cylinder and is located on the lower side of the second through groove. The lower end of the spring is fixedly connected to the support plate, and the upper end of the spring is fixedly connected to the rotating plate.

[0012] (III) Beneficial Effects

[0013] This utility model provides an impact drill assist device, which has the following beneficial effects:

[0014] This impact drill assist device, through the coordinated arrangement of the impact drill, base, support cylinder, support rod, mounting plate, limiting component, and drive component, enables safe and convenient lifting and lowering of the impact drill. The drive component drives the support rod to slide up and down within the support cylinder, while the limiting component secures the support rod within the cylinder. When the support rod needs to be retracted into the cylinder, the drive component slides along the arc-shaped groove, disengaging the gear from the teeth on the support rod. Pressing one end of the rotating plate causes it to partially rotate a clamping plate around the rotating rod, disengaging the clamping plate from the teeth on the support rod and releasing its limiting support. The support rod then rapidly descends and retracts into the support cylinder under gravity, achieving rapid retraction. Compared to existing technologies, the descent of the support rod does not drive the handle to rotate, thus avoiding accidental injury to workers. The retraction efficiency of the support rod is also faster, without reducing construction efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of an impact drill assist device according to the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the rotating plate in an impact drill assist device according to this utility model.

[0018] Figure 3 This is a cross-sectional view of the connecting frame in an impact drill assist device according to the present invention.

[0019] In the diagram: 1. Base; 2. Support cylinder; 3. Support rod; 4. Mounting plate; 5. Arc groove; 6. Rotating shaft; 7. Gear; 8. Handle; 9. Rotating plate; 10. Clamping plate; 11. Spring; 12. Rotating rod. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying anything.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0022] Please see Figures 1 to 3 This utility model provides a technical solution: an impact drill assist device, comprising an impact drill, a base 1, a support cylinder 2, a support rod 3, a mounting plate 4, a limiting component, and a driving component. The mounting plate 4 is fixedly mounted on the upper side wall of the support rod 3, and the impact drill is fixedly mounted on the mounting plate 4. The lower end of the support cylinder 2 is fixedly connected to the base 1, and multiple rollers are fixedly mounted below the base 1. The lower part of the support rod 3 is inserted into the support cylinder 2 and the two are slidably connected. Multiple longitudinally arranged toothed grooves are engraved on one side wall of the support rod 3. A first through groove and a second through groove are respectively opened on the lower side wall of the support cylinder 2.

[0023] The rollers facilitate the movement of the base 1. The base 1 supports and fixes the support cylinder 2. The support cylinder 2 and support rod 3 support the mounting plate 4, which is used to fix the impact drill. The drive component drives the support rod 3 to move up and down on the support cylinder 2. The limiting component limits and fixes the support rod 3, ensuring it is fixed to the support cylinder 2 and preventing it from sliding.

[0024] Two protruding plates are fixedly connected to one side wall of the support cylinder 2 at the first through groove. The protruding plates have arc-shaped grooves 5. The driving component includes a gear 7, a rotating shaft 6, and a handle 8. The middle of the rotating shaft 6 passes through the gear 7 and the two are rotatably connected. The two ends of the rotating shaft 6 are inserted into the arc-shaped grooves 5 of the two protruding plates. The rotating shaft 6 is slidably connected to the protruding plates through the arc-shaped grooves 5 and rotatably connected to the protruding plates through the arc-shaped grooves 5. The handle 8 is fixedly installed on the outer side wall of the gear 7 and the two are fixedly connected. The teeth of the gear 7 mesh with the tooth grooves on the support rod 3.

[0025] The rotating shaft 6 can rotate and slide within the arc-shaped groove 5. When the rotating shaft 6 rotates within the arc-shaped groove 5, it drives the gear 7 to rotate, which in turn drives the handle 8 to rotate. The gear 7 pushes the support rod 3, which meshes with it, to move up and down within the support cylinder 2. In use, by pressing the handle 8, the handle 8 drives the gear 7 to rotate around the rotating shaft 6. At the same time, the gear 7 pushes the support rod 3, which meshes with it, to move up and down within the support cylinder 2. When the support rod 3 rises, it drives the impact drill to rise via the mounting plate 4. After the drill bit of the impact drill touches the top, it performs drilling operations on the roof.

[0026] When the rotating shaft 6 slides in the arc groove 5, the rotating shaft 6 drives the gear 7 to move closer to or away from the support rod 3; when the gear 7 is close to the support rod 3, the gear 7 can mesh with the tooth groove on the support rod 3; when the gear 7 is away from the support rod 3, the gear 7 can disengage from the tooth groove on the support rod 3.

[0027] The limiting component includes a rotating plate 9, a clamping plate 10, and a rotating rod 12. The rotating plate 9 is generally L-shaped. The middle part of the rotating rod 12 is fixedly connected to the rotating plate 9, the upper end of the rotating plate 9 is fixedly connected to the clamping plate 10, and both ends of the rotating rod 12 are rotatably connected to the support cylinder 2. After the rotating plate 9 partially rotates around the rotating rod 12, the rotating plate 9 drives the clamping plate 10 to move, and the clamping plate 10 engages with the toothed groove on the support rod 3. The limiting component also includes a support plate and a spring 11. The support plate is fixedly connected to the outer wall of the support cylinder 2, and the support plate is located on the lower side of the second through groove. The lower end of the spring 11 is fixedly connected to the support plate, and the upper end of the spring 11 is fixedly connected to the rotating plate 9.

[0028] When one end of the rotating plate 9 is pressed, the rotating plate 9 rotates clockwise around the rotating rod 12 as the central axis. The rotating plate 9 compresses the spring 11, and the other end of the rotating plate 9 drives the locking plate 10 to move. At this time, the locking plate 10 disengages from the toothed groove on the support rod 3, thereby canceling the limiting and fixing of the support rod 3, and the support rod 3 can slide and move within the support cylinder 2.

[0029] When the rotating plate 9 is not pressed, the rotating plate 9 is reset under the elastic push of the spring 11. The other end of the rotating plate 9 drives the locking plate 10 to move. At this time, the locking plate 10 is locked into the tooth groove on the support rod 3, thereby limiting and fixing the support rod 3. The support rod 3 cannot slide or move inside the support cylinder 2.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A percussion drill assist device comprising a percussion drill, characterised in that: The utility model provides a support device for impact drill, including base (1), support cylinder (2), support rod (3), mounting plate (4), limiting part, drive part, the lower part of support rod (3) is inserted in the inside of support cylinder (2) and both sliding connections, a side wall of support rod (3) is engraved with a plurality of longitudinal arrangement's tooth groove, The lower end of the side wall of the support cylinder (2) is respectively provided with a first through slot and a second through slot, The side wall of the support cylinder (2) is fixedly connected with two protruding plates at the first through slot, and an arc-shaped slot (5) is formed in the protruding plates; the drive part includes a gear (7), a rotating shaft (6) and a handle (8), the middle part of the rotating shaft (6) penetrates the gear (7) and is rotatably connected with the gear (7), the both ends of the rotating shaft (6) are inserted into the arc-shaped slots (5) of the protruding plates, the rotating shaft (6) is slidingly connected with the protruding plates through the arc-shaped slots (5), and the rotating shaft (6) is rotatably connected with the protruding plates through the arc-shaped slots (5), the handle (8) is fixedly installed on the outer side wall of the gear (7) and is fixedly connected with the gear (7), and the gear teeth of the gear (7) are engaged with the tooth grooves on the support rod (3). The limiting part includes a rotating plate (9), a clamping plate (10) and a rotating rod (12), the rotating plate (9) is L-shaped, the middle part of the rotating rod (12) is fixedly connected with the rotating plate (9), the upper end of the rotating plate (9) is fixedly connected with the clamping plate (10), and the both ends of the rotating rod (12) are rotatably connected with the support cylinder (2); after the rotating plate (9) is partially rotated around the rotating rod (12), the rotating plate (9) drives the clamping plate (10) to displace, and the clamping plate (10) is clamped with the tooth grooves on the support rod (3).

2. The impact drill assist device according to claim 1, characterized by: The mounting plate (4) is fixedly installed on the upper end of the side wall of the support rod (3), and the impact drill is fixedly installed on the mounting plate (4).

3. The impact drill assist device of claim 1, wherein: The lower end of the support cylinder (2) is fixedly connected with the base (1), and a plurality of rollers are fixedly installed below the base (1).

4. The impact drill assist device of claim 1, wherein: The limiting part further includes a supporting plate and a spring (11), the supporting plate is fixedly connected with the outer side wall of the support cylinder (2) and is located below the second through slot on one side, the lower end of the spring (11) is fixedly connected with the supporting plate, and the upper end of the spring (11) is fixedly connected with the rotating plate (9).

Citation Information

Patent Citations

  • Power assisting device of percussion drill

    CN219616762U