Extension rod device of percussion drill

Abstract

The utility model relates to the technical field of building construction, in particular to a percussion drill extension rod device which comprises a main rod used for fixing a percussion drill, a support used for supporting, a handle, a swing arm, two pin shafts, a first connecting shaft and a second connecting shaft. The top end of the support is rotationally connected with the position, deviating from the end, of the handle through a pin shaft, and the bottom end of the main rod is rotationally connected with one end of the swing arm through a pin shaft; the main rod is provided with at least two first through holes in the vertical direction, one end of the handle is rotationally connected with one first through hole through a first connecting shaft, the support is provided with at least two second through holes in the vertical direction, and the other end of the swing arm is rotationally connected with one second through hole through a second connecting shaft. The local length of the end part of the handle, the local length of the end part of the main rod, the whole swing arm and the local length of the end part of the bracket are sequentially connected to form a parallelogram connecting rod structure; the structure is simple, the parallelogram connecting rod structure is improved, the weight of the device is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to an impact drill extension rod device. Background Art

[0002] In the ceiling drilling operations in the fields of construction and home decoration, etc., an impact drill is a commonly used tool. However, in some special cases, such as when drilling at high places or in hard-to-reach positions, due to its size limitation, the traditional impact drill cannot directly reach the operation point, and an extension device is required to increase the effective working range of the impact drill.

[0003] At present, most of the extension devices on the market adopt the parallelogram link structure design. For example, the device disclosed in the application number 202021349152.X. The parallelogram link structure itself has certain stroke limitations. When a longer telescopic distance is required, the existing solution is to add an extension rod slidably connected to the main rod on the basis of the main rod, and the required stroke is achieved by adjusting the combined length of the main rod and the extension rod. Although this method can meet the operation requirements under different height requirements to a certain extent, due to the addition of extra components, the weight of the entire extension device increases, and the burden on the operator also increases accordingly. Especially during long-term continuous work, this will undoubtedly reduce the work efficiency. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides an impact drill extension rod device, which has a simple structure, improves the parallelogram link structure, reduces the weight of the device, and improves the operation efficiency.

[0005] An impact drill extension rod device of the utility model includes a main rod for fixing the impact drill, a bracket for support, a handle, a swing arm, two pin shafts, a connecting shaft one and a connecting shaft two;

[0006] The top end of the bracket and the position on the handle deviating from the end, as well as the bottom end of the main rod and one end of the swing arm are all rotatably connected through pin shafts;

[0007] At least two through holes one are vertically formed in the main rod, one end of the handle is rotatably connected with one of the through holes one through the connecting shaft one, at least two through holes two are vertically formed in the bracket, and the other end of the swing arm is rotatably connected with one of the through holes two through the connecting shaft two;

[0008] The partial length of the end of the handle, the partial length of the end of the main rod, the whole swing arm and the partial length of the end of the bracket are sequentially connected into a parallelogram link structure.

[0009] As a preferred embodiment of the present utility model, a holding portion is provided at the other end of the handle, and a rubber sheet structure is provided on the holding portion, and the rubber sheet structure covers at least a partial surface of the holding portion.

[0010] As a preferred embodiment of the present utility model, a plurality of protrusions are provided on the surface of the rubber sheet structure, and the protrusions are in the form of strip-shaped parallel portions.

[0011] As a preferred embodiment of the present utility model, at least one end of the first through hole is a flared structure.

[0012] As a preferred embodiment of the present utility model, at least one end of the second through hole is a flared structure.

[0013] As a preferred embodiment of the present utility model, a fixing mechanism for fixing the position of the impact drill is provided at the top end of the main rod, and the fixing mechanism is a hoop.

[0014] As a preferred embodiment of the present utility model, the edge of the rubber sheet structure is a smooth arc structure.

[0015] As a preferred embodiment of the present utility model, fixing members are provided at both ends of the first connecting shaft and the second connecting shaft, the fixing members are nuts, and the nuts are threadedly connected to both ends of the first connecting shaft and the second connecting shaft.

[0016] As a preferred embodiment of the present utility model, at least one end of the first connecting shaft and the second connecting shaft is a smooth arc structure.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The main rod, the bracket, the handle, the swing arm, the two pin shafts, the first connecting shaft and the second connecting shaft form a parallelogram linkage structure. When adjusting the stroke of the main rod, the first connecting shaft and the second connecting shaft are removed, the appropriate first through hole and second through hole are selected, and the first connecting shaft and the second connecting shaft are respectively passed through the selected first through hole and second through hole, and the handle is kept parallel to the swing arm. In this way, under the same state of the handle, the height of the top end of the main rod will change due to the selected first through hole and second through hole, so as to control the stroke of the impact drill and adapt to the heights of different roofs; compared with the traditional method of adding an extension rod to the main rod to increase the stroke, this device avoids the addition of additional components, thereby reducing the weight of the entire device, which has a significant effect on improving the operation convenience and reducing the fatigue of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the present utility model;

[0019] Figure 2 is Figure 1 the front view of

[0020] Reference numerals in the drawings: 1, main rod; 2, bracket; 3, handle; 4, swing arm; 5, pin shaft; 6, connecting shaft I; 7, connecting shaft II; 8, through hole I; 9, through hole II; 10, holding part; 11, protrusion; 12, fixing mechanism; 13, fixing part. Detailed implementation manners

[0021] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model in conjunction with the drawings of the specification.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0023] Secondly, the so-called "embodiment" herein refers to specific features, structures, or characteristics that can be included in at least one implementation manner of the present utility model. The phrase "in an embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0024] Embodiment, referring to Figures 1-2 , this embodiment provides an impact drill extension rod device, including a main rod 1 for fixing an impact drill, a bracket 2 for support, a handle 3, a swing arm 4, two pin shafts 5, a connecting shaft I 6, and a connecting shaft II 7;

[0025] The top end of the bracket 2 and the position on the handle 3 deviating from the end, as well as the bottom end of the main rod 1 and one end of the swing arm 4 are all rotatably connected through the pin shaft 5;

[0026] The main rod 1 is provided with at least two through holes I 8 along the vertical direction. One end of the handle 3 is rotatably connected to one of the through holes I 8 through the connecting shaft I 6. The bracket 2 is provided with at least two through holes II 9 along the vertical direction. The other end of the swing arm 4 is rotatably connected to one of the through holes II 9 through the connecting shaft II 7;

[0027] The partial length of the end of the handle 3, the partial length of the end of the main rod 1, the whole of the swing arm 4, and the partial length of the end of the bracket 2 are sequentially connected to form a parallelogram link structure;

[0028] In this embodiment, the main rod 1, the bracket 2, the handle 3, the swing arm 4, the two pins 5, the connecting shaft 1 6 and the connecting shaft 2 7 form a parallelogram connecting rod structure. When the stroke of the main rod 1 needs to be adjusted, the connecting shaft 1 6 and the connecting shaft 2 7 are removed, and the appropriate through hole 1 8 and through hole 2 9 are selected, and the connecting shaft 1 6 and the connecting shaft 2 7 are respectively passed through the selected through hole 1 8 and through hole 2 9, and the handle 3 is kept parallel to the swing arm 4. Therefore, when the handle 3 is in the same state, the height of the top end of the main rod 1 will change due to the selected through hole 1 8 and through hole 2 9, thereby controlling the stroke of the impact drill to adapt to the height of different top plates; compared with the traditional method of adding an extension rod to the main rod 1 to increase the stroke, the present device avoids the addition of additional components, thereby reducing the weight of the entire device, which has a significant effect on improving operational convenience and reducing operator fatigue.

[0029] As a preferred solution of the utility model, a gripping portion 10 is provided at the other end of the handle 3, and the gripping portion 10 is provided with a rubber sheet structure. The rubber sheet structure covers at least a partial surface of the gripping portion 10. The rubber material has a good friction coefficient and can provide a good grip even if there is sweat or oil on the hands to prevent the tool from slipping from the hands. Rubber is a soft material that can reduce the pressure points of the user's hands and will not cause excessive fatigue of the hands even after long-term use. Rubber has shock-absorbing properties and can absorb part of the vibration from the operation of the impact drill, thereby protecting the operator's hands from excessive vibration.

[0030] As a preferred solution of the utility model, a plurality of protrusions 11 are provided on the surface of the rubber sheet structure. The protrusions 11 are strip-shaped parallel parts. The protrusions 11 can disperse the pressure applied by the hand on the gripping part 10, so that the force on the hand is more evenly applied, reducing hand fatigue caused by long-term gripping.

[0031] As a preferred solution of the utility model, at least one end of the through hole 8 is a flared structure, and one end or both ends of the through hole 8 are set as a flared structure. The flared structure can provide a larger entry angle for the connecting shaft 6, making it easier to align the through hole 8 during assembly, thereby reducing the difficulty of assembly.

[0032] As a preferred solution of the utility model, at least one end of the through hole 29 is a flared structure, and one end or both ends of the through hole 29 are set as a flared structure. The flared structure can provide a larger entry angle for the connecting shaft 27, making it easier to align the through hole 29 during assembly, thereby reducing the difficulty of assembly.

[0033] As a preferred embodiment of the present utility model, a fixing mechanism 12 for fixing the position of the impact drill is provided at the top of the main rod 1. The fixing mechanism 12 is a hoop. As shown in the figure, there are two hoops, which are respectively arranged on both sides of the handle 3 of the impact drill to firmly fix the impact drill. In addition to the hoop, magnetic fixation, spring clips, straps, riveting and other methods can also be used.

[0034] As a preferred embodiment of the present utility model, the edge of the rubber sheet structure is a smooth arc structure. The smooth arc edge can reduce the risk of accidentally scratching or cutting the hand.

[0035] As a preferred embodiment of the present utility model, fixing members 13 are provided at both ends of the first connecting shaft 6 and the second connecting shaft 7. The fixing members 13 are nuts. The nuts are threadedly connected to both ends of the first connecting shaft 6 and the second connecting shaft 7. The threaded connection between the nut and the connecting shaft can provide a very stable fixing effect, ensuring that the connecting shaft will not loosen during use, thereby guaranteeing the stability and reliability of the entire device. By rotating the nut, the tightening degree of the connecting shaft can be adjusted, so that the positions of the first connecting shaft 6 and the second connecting shaft 7 in the through hole can be finely adjusted to meet different usage requirements. The combination of the nut and the connecting shaft makes disassembly and assembly very simple. Only a wrench or other appropriate tool is needed to easily tighten or loosen the nut, which is convenient for maintenance and adjustment.

[0036] As a preferred embodiment of the present utility model, at least one end of the first connecting shaft 6 and the second connecting shaft 7 is a smooth arc structure. The smooth arc structure can reduce damage to the surface of the parts during the assembly process. Especially when the connecting shaft needs to pass through the through hole, the arc-shaped end can more easily guide it in and avoid scratching or damaging the edge of the through hole.

[0037] It should be understood that in the development process of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, the development efforts will be a routine task of design, manufacturing and production.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not restrictive. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. An impact drill extension rod device, comprising a main rod (1) for fixing the impact drill, a bracket (2) for support, a handle (3), a swing arm (4), two pin shafts (5), a connecting shaft one (6) and a connecting shaft two (7); The top end of the bracket (2) and the position on the handle (3) deviating from the end, and the bottom end of the main rod (1) and one end of the swing arm (4) are rotatably connected through the pin shaft (5); Characterized in that, At least two through holes one (8) are provided in the main rod (1) in the vertical direction, one end of the handle (3) is rotatably connected with one of the through holes one (8) through the connecting shaft one (6), at least two through holes two (9) are provided in the bracket (2) in the vertical direction, and the other end of the swing arm (4) is rotatably connected with one of the through holes two (9) through the connecting shaft two (7); The partial length of the end of the handle (3), the partial length of the end of the main rod (1), the whole swing arm (4) and the partial length of the end of the bracket (2) are sequentially connected into a parallelogram link structure.

2. The impact drill extension rod device according to claim 1, characterized in that, The other end of the handle (3) is provided with a holding part (10), the holding part (10) is provided with a rubber sheet structure, and the rubber sheet structure at least covers the partial surface of the holding part (10).

3. The impact drill extension rod device according to claim 2, characterized in that, A plurality of protrusions (11) are arranged on the surface of the rubber sheet structure, and the protrusions (11) are in strip-shaped parallel parts.

4. The impact drill extension rod device according to claim 1, characterized in that, At least one end of the through hole one (8) is a flared structure.

5. The impact drill extension rod device according to claim 1, characterized in that, At least one end of the through hole two (9) is a flared structure.

6. The impact drill extension rod device according to claim 1, characterized in that, A fixing mechanism (12) for fixing the position of the impact drill is arranged at the top end of the main rod (1), and the fixing mechanism (12) is a hoop.

7. The impact drill extension rod device according to claim 3, wherein, The edge of the rubber sheet structure is a smooth arc structure.

8. The impact drill extension rod device according to claim 1, characterized in that, Fixing parts (13) are arranged at both ends of the connecting shaft one (6) and the connecting shaft two (7), the fixing parts (13) are nuts, and the nuts are threadedly connected with both ends of the connecting shaft one (6) and the connecting shaft two (7).

9. The impact drill extension rod device according to claim 8, characterized in that, At least one end of the connecting shaft one (6) and the connecting shaft two (7) is a smooth arc structure.

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