Percussion drill bit with guide structure

Abstract

The utility model relates to the field of percussion drills, and discloses a percussion drill bit with a guide structure, which comprises a sleeve, a plurality of through grooves are equidistantly arranged on the side wall of the sleeve, a drill bit body is sleeved on the inner side wall of the sleeve, and a fixing mechanism for fixing the drill bit body is arranged at the top of the sleeve. The sleeve and the drill bit body are preliminarily fixed through the first fixing mechanism, the drill bit body is limited in cooperation with the second fixing mechanism, the drill bit body is prevented from deviating and shaking in the working process, the practicability of the device is improved, and when the drill bit body is extruded downwards during drilling, under the action of the two supporting plates, the drill bit body is prevented from falling off. The two buffer springs are gradually in a compressed state, under the counter-acting force of the buffer springs, the multiple steel nails make close contact with an object, the bottom plate is prevented from moving, the drill bit body is prevented from being limited, the drill bit body is prevented from deviating by a certain amplitude at the moment of making contact with the object, and the accuracy of the drilling position is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of impact drills, in particular to an impact drill bit with a guiding structure. Background Art

[0002] An impact drill is a tool for drilling holes, usually used for drilling in hard rocks or concrete. It drills through materials by continuously applying impact force and rotational power, and is usually equipped with a drill bit and a drill rod to complete the work. Impact drills are commonly used in fields such as construction, excavation, and mining, and can efficiently complete drilling tasks.

[0003] During the use of traditional impact drills, due to the severe vibration generated by the drill bit during operation, it is extremely unstable and cannot correct the drill bit. During drilling, the drill bit is prone to errors and deviations, resulting in poor drilling effects and reducing the practicality of the device. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose an impact drill bit with a guiding structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An impact drill bit with a guiding structure includes a sleeve. A plurality of through slots are equidistantly arranged on the side wall of the sleeve. A drill bit body is sleeved on the inner side wall of the sleeve. A fixing mechanism for fixing the drill bit body is arranged at the top of the sleeve. A plurality of support plates are fixedly arranged on the side wall of the drill bit body at equal intervals. A limiting mechanism for limiting the drill bit body is arranged on the top of each of the plurality of support plates. Slide rods penetrate through the top of two of the support plates. The bottoms of the two slide rods are fixed to the same bottom plate. A round hole is opened on the top of the bottom plate, and the round hole is adapted to the drill bit body. During the use of the device, the sleeve and the drill bit body are initially fixed through the first fixing mechanism, and the drill bit body is limited through the cooperation of the second fixing mechanism, avoiding the deviation and shaking of the drill bit body during the working process, and improving the practicality of the device. During drilling, when the drill bit body is pressed downward, under the action of the two support plates, the two buffer springs are gradually compressed. Under the reaction force of the buffer springs, a plurality of steel nails are in close contact with the object, avoiding the movement of the bottom plate, restricting the drill bit body, and avoiding a certain degree of deviation when the drill bit body contacts the object, improving the accuracy of the drilling position.

[0007] As a further solution of the present utility model, buffer springs are sleeved on the side walls of both of the sliding rods. One ends of the two buffer springs are respectively fixed to both ends of the bottom plate, and the other ends of the two buffer springs are respectively fixed to the two support plates. A plurality of steel nails are linearly fixed at equal distances on the top of the bottom plate. The fixing mechanism includes an annular seat which is sleeved on the side wall of the drill bit body. A plurality of through holes are arranged at equal distances on the top of the annular seat. A plurality of threaded rods are arranged at equal distances on the top of the sleeve, and the plurality of threaded rods correspond to the plurality of through holes one by one. Nuts are sleeved on the side walls of the plurality of threaded rods, and the plurality of nuts are adapted to the plurality of threaded rods. Insert the drill bit body into the sleeve, pass the plurality of threaded rods through the plurality of through holes respectively, and fix the sleeve and the annular seat with the plurality of nuts, then the preliminary fixing of the drill bit body can be completed.

[0008] As a further solution of the present utility model, the limiting mechanism includes a connecting seat which is fixed to the top of the support plate. A sliding groove is arranged on the side wall of the connecting seat. A bidirectional lead screw is rotatably connected to the inner bottom of the connecting seat, and one end of the bidirectional lead screw penetrates through the top of the connecting seat. Two sliders are slidably connected to the inner side wall of the sliding groove. Threaded holes are arranged at the tops of the two sliders, and the directions of the two threaded holes are opposite. The two threaded holes are both adapted to the bidirectional lead screw. An arc-shaped plate is arranged on the inner side wall of the sleeve. A plurality of rollers are rotatably connected at equal distances and linearly on the inner side wall of the arc-shaped plate. Two connecting rods are rotatably connected to the outer side wall of the arc-shaped plate, and one ends of the two connecting rods are respectively rotatably connected to the two sliders. Rotate the bidirectional lead screw, and cooperate with the two sliders to approach each other. At this time, the included angle between the two connecting rods gradually becomes smaller, and the arc-shaped plate is pushed to gradually approach the drill bit body, thereby driving the plurality of rollers to fit with the drill bit body, and then the limitation of the drill bit body can be completed, avoiding the deviation and shaking of the drill bit body during the working process, and improving the practicability of the device.

[0009] The beneficial effects of the present utility model are as follows:

[0010] 1. During the use of the device, the sleeve and the drill bit body are preliminarily fixed through the first fixing mechanism, and the drill bit body is limited by the second fixing mechanism, avoiding the deviation and shaking of the drill bit body during the working process, and improving the practicability of the device.

[0011] 2. Press a plurality of steel nails against the surface of the object. At this time, the center of the circular hole is at the center of the drilling. During drilling, when the drill bit body is pressed downward, under the action of the two support plates, the two buffer springs are gradually compressed. Under the reaction force of the buffer springs, the drill bit body is restricted, avoiding a certain degree of deviation when the drill bit body contacts the object, and improving the accuracy of the drilling position. Description of the Drawings

[0012] Figure 1Structural schematic diagram of an impact drill bit with a guiding structure proposed by the present utility model;

[0013] Figure 2 Schematic diagram of the base plate, round hole and steel nail of an impact drill bit with a guiding structure proposed by the present utility model;

[0014] Figure 3 Exploded schematic diagram of the sleeve and the drill bit body of an impact drill bit with a guiding structure proposed by the present utility model;

[0015] Figure 4 Schematic sectional view of the sleeve of an impact drill bit with a guiding structure proposed by the present utility model;

[0016] Figure 5 Schematic sectional view of the connecting seat of an impact drill bit with a guiding structure proposed by the present utility model.

[0017] In the figure: 1. Sleeve; 2. Support plate; 3. Base plate; 4. Slide bar; 5. Buffer spring; 6. Through groove; 7. Connecting seat; 8. Drill bit body; 9. Annular seat; 10. Round hole; 11. Steel nail; 12. Through hole; 13. Threaded rod; 14. Nut; 15. Slide groove; 16. Bidirectional lead screw; 17. Arc plate; 18. Roller; 19. Slide block; 20. Connecting rod. Specific implementation manners

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0019] Refer to Figures 1 - 5, An impact drill bit with a guiding structure, the side wall of the sleeve 1 is provided with a plurality of through grooves 6 at equal distances, including the sleeve 1, the inner side wall of the sleeve 1 is sleeved with a drill bit body 8, the top of the sleeve 1 is provided with a fixing mechanism for fixing the drill bit body 8, the side wall of the drill bit body 8 is fixedly provided with a plurality of support plates 2 at equal distances, the tops of the plurality of support plates 2 are all provided with a limiting mechanism for fixing the drill bit body 8, wherein two of the support plates 2 are both provided with sliding rods 4 penetrating through the top, the bottoms of the two sliding rods 4 are fixedly provided with the same bottom plate 3, the top of the bottom plate 3 is provided with a circular hole 10, and the circular hole 10 is adapted to the drill bit body 8, the side walls of the two sliding rods 4 are both sleeved with buffer springs 5, one ends of the two buffer springs 5 are respectively fixed to both ends of the bottom plate 3, and the other ends of the two buffer springs 5 are respectively fixed to the two support plates 2, a plurality of steel nails 11 are linearly fixed at equal distances on the top of the bottom plate 3. During the use of this device, the sleeve 1 and the drill bit body 8 are initially fixed through the first fixing mechanism, and the drill bit body 8 is limited by cooperating with the second fixing mechanism, avoiding the drill bit body 8 from shifting and shaking during the working process, improving the practicability of this device. When drilling, when pressing down the drill bit body 8, under the action of the two support plates 2, the two buffer springs 5 are gradually compressed. Under the reaction force of the buffer springs 5, the plurality of steel nails 11 are in close contact with the object, avoiding the movement of the bottom plate 3 and restricting the drill bit body 8, avoiding a certain degree of deviation when the drill bit body 8 contacts the object, and improving the accuracy of the drilling position.

[0020] Refer to Figure 1 And Figure 3 , In a preferred embodiment, the fixing mechanism includes an annular seat 9, the annular seat 9 is sleeved on the side wall of the drill bit body 8, a plurality of through holes 12 are provided at equal distances on the top of the annular seat 9, a plurality of threaded rods 13 are provided at equal distances on the top of the sleeve 1, and the plurality of threaded rods 13 and the plurality of through holes 12 correspond one by one. Nuts 14 are sleeved on the side walls of the plurality of threaded rods 13, and the plurality of nuts 14 and the plurality of threaded rods 13 are all adapted. Insert the drill bit body 8 into the sleeve 1, and respectively pass the plurality of threaded rods 13 through the plurality of through holes 12, and fix the sleeve 1 and the annular seat 9 with the plurality of nuts 14, then the initial fixing of the drill bit body 8 can be completed.

[0021] Refer to Figure 1 And Figure 3, in a preferred embodiment, the limiting mechanism includes a connecting seat 7. The connecting seat 7 is fixed to the top of the support plate 2. A sliding groove 15 is formed in the side wall of the connecting seat 7. A bidirectional lead screw 16 is rotatably connected to the inner bottom of the connecting seat 7, and one end of the bidirectional lead screw 16 penetrates through the top of the connecting seat 7. Two sliders 19 are slidably connected to the inner side wall of the sliding groove 15. Threaded holes are formed in the tops of the two sliders 19, and the directions of the two threaded holes are opposite. The two threaded holes are both adapted to the bidirectional lead screw 16. An arc-shaped plate 17 is provided on the inner side wall of the sleeve 1. A plurality of rollers 18 are rotatably connected to the inner side wall of the arc-shaped plate 17 at equal intervals linearly. Two connecting rods 20 are rotatably connected to the outer side wall of the arc-shaped plate 17, and one ends of the two connecting rods 20 are respectively rotatably connected to the two sliders 19. Rotate the bidirectional lead screw 16, and cooperate with the two sliders 19 to approach each other. At this time, the included angle between the two connecting rods 20 gradually becomes smaller, pushing the arc-shaped plate 17 to gradually approach the drill bit body 8, and then driving the plurality of rollers 18 to fit with the drill bit body 8, so as to complete the limitation of the drill bit body 8, avoid the drill bit body 8 from shifting and shaking during the working process, and improve the practicability of the device.

[0022] The working principle of this embodiment: During the use of this device, first insert the drill bit body 8 into the sleeve 1, and respectively pass the plurality of threaded rods 13 through the plurality of through holes 12, and fix the sleeve 1 and the annular seat 9 with the plurality of nuts 14, then the preliminary fixation of the drill bit body 8 can be completed. Rotate the bidirectional lead screw 16, and cooperate with the two sliders 19 to approach each other. At this time, the included angle between the two connecting rods 20 gradually becomes smaller, pushing the arc-shaped plate 17 to gradually approach the drill bit body 8, and then driving the plurality of rollers 18 to fit with the drill bit body 8, so as to complete the limitation of the drill bit body 8, avoid the drill bit body 8 from shifting and shaking during the working process, and improve the practicability of the device. Then connect and fix the drill bit body 8 with the impact drill. When drilling, first make the plurality of steel nails 11 contact the object. At this time, the center point of the circular hole 10 coincides with the center point of the drill hole. When the impact drill presses the drill bit body 8 downward, under the action of the two support plates 2 and the slide rods 4, the two buffer springs 5 are gradually compressed. Under the reaction of the compressed buffer springs 5, the plurality of steel nails 11 are in close contact with the object, avoiding the bottom plate 3 from moving. When the drill bit body 8 passes through the circular hole 10 and contacts the object, the object can be drilled. Under the limitation of the bottom plate 3, it is avoided that the drill bit body 8 deflects to a certain extent at the moment of contacting the object, and the accuracy of the drilling position is improved.

[0023] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used herein.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these process, method, product or device.

[0026] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A percussion drill bit with a guide structure, comprising a sleeve (1), characterized in that: The side wall of the sleeve (1) is provided with a plurality of through grooves (6) at equal intervals, the inner side wall of the sleeve (1) is sleeved with a drill body (8), the top of the sleeve (1) is provided with a fixing mechanism for fixing the drill body (8), the side wall of the drill body (8) is fixed with a plurality of support plates (2) at equal intervals, the tops of the plurality of support plates (2) are provided with a limiting mechanism for limiting the drill body (8), wherein two of the support plates (2) are provided with sliding rods (4) penetrating the tops, the bottoms of the two sliding rods (4) are fixed with the same bottom plate (3), the top of the bottom plate (3) is provided with a circular hole (10), and the circular hole (10) is adapted to the drill body (8).

2. The impact drill bit with a guide structure according to claim 1, characterized in that: The side walls of the two sliding rods (4) are sleeved with buffer springs (5), one end of the two buffer springs (5) is respectively fixed to the two ends of the bottom plate (3), and the other ends of the two buffer springs (5) are respectively fixed to the two support plates (2), and a plurality of steel nails (11) are linearly fixed at equal distances on the top of the bottom plate (3).

3. The impact drill bit with a guide structure according to claim 1, characterized in that: The fixing mechanism comprises an annular seat (9), the annular seat (9) is sleeved on the side wall of the drill body (8), a plurality of through holes (12) are equidistantly provided on the top of the annular seat (9), a plurality of threaded rods (13) are equidistantly provided on the top of the sleeve (1), and the plurality of threaded rods (13) and the plurality of through holes (12) correspond one to one, the side walls of the plurality of threaded rods (13) are sleeved with nuts (14), and the plurality of nuts (14) and the plurality of threaded rods (13) are adapted to each other.

4. The impact drill bit with a guide structure according to claim 1, characterized in that: The limiting mechanism comprises a connecting seat (7), the connecting seat (7) is fixed to the top of the supporting plate (2), a sliding groove (15) is provided on the side wall of the connecting seat (7), a bidirectional screw rod (16) is rotatably connected to the bottom of the connecting seat (7), and one end of the bidirectional screw rod (16) passes through the top of the connecting seat (7), and two sliders (19) are slidably connected to the inner side wall of the sliding groove (15), and threaded holes are provided on the tops of the two sliders (19), and the directions of the two threaded holes are opposite, and the two threaded holes are adapted to the bidirectional screw rod (16).

5. The impact drill bit with a guide structure according to claim 1, characterized in that: The inner wall of the sleeve (1) is provided with an arc-shaped plate (17), and the inner wall of the arc-shaped plate (17) is linearly rotatably connected to a plurality of rollers (18) at equal distances, and the outer wall of the arc-shaped plate (17) is rotatably connected to two connecting rods (20), and one end of the two connecting rods (20) is rotatably connected to two sliders (19) respectively.

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