Shock absorption and noise reduction structure of electric impact drill

Abstract

The utility model discloses an electric impact drill shock absorption and noise reduction structure which comprises a supporting frame, a round hole is formed in the side wall of the supporting frame, a conical soft rubber shell is arranged on one side of the supporting frame, and the electric impact drill shock absorption and noise reduction structure is provided with a damper and a spring. Acting force can act on the hollow column through the annular attaching plate, the hollow column can transfer the acting force to the damper and the spring, so that shock absorption and noise reduction can be conducted, then part of noise can be blocked through the conical soft rubber shell on the periphery of the electric drill end, and progressive increase type grooves are formed in the inner periphery and the outer periphery of the conical soft rubber shell. The damping and noise reduction structure has the effect of weakening noise, better damping and noise reduction can be achieved, and the situation that most damping and noise reduction structures conduct damping and noise reduction through material change, a damping and noise reduction device is lacked, and the damping and noise reduction effect is poor is avoided.

Description

Technical Field

[0001] This utility model relates to the field of vibration reduction and noise reduction technology, and in particular to a vibration reduction and noise reduction structure for an impact drill. Background Technology

[0002] Impact drills generate significant noise during operation due to high-speed rotation and impact force. This noise primarily originates from friction between the drill bit and the material, motor operation, and the operation of the impact mechanism. Prolonged work in a high-noise environment can damage the operator's hearing, while also affecting work efficiency and mood. Therefore, impact drills require vibration reduction and noise reduction structures.

[0003] Most vibration and noise reduction structures on the market reduce vibration and noise by changing the material, lacking vibration and noise reduction devices, resulting in poor vibration and noise reduction effects. Therefore, there is a need for an impact drill vibration and noise reduction structure. Utility Model Content

[0004] The purpose of this utility model is to provide a vibration reduction and noise reduction structure for impact drills, which solves the problem that most existing vibration reduction and noise reduction structures rely on material changes for vibration reduction and noise reduction, lacking vibration reduction and noise reduction devices, resulting in poor vibration reduction and noise reduction effects.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shock-absorbing and noise-reducing structure for an impact drill, comprising a support frame, a circular hole in the side wall of the support frame, a conical soft rubber shell on one side of the support frame, an annular bonding plate at the other end of the conical soft rubber shell, and a transparent observation plate fixed to the side wall of the annular bonding plate.

[0006] A support column is provided on one side of the conical soft rubber shell. A first rotating shaft is provided at the connection between the support column and the support frame. A sliding plate is fixed at the other end of the support column. A damper is provided on the other side wall of the sliding plate. A spring is provided around the damper. A hollow column is provided outside the spring. A second rotating shaft is provided at the connection between the hollow column and the annular bonding plate.

[0007] Preferably, a first bearing is provided on the other side wall of the support frame, a connecting column is provided on the inner side of the first bearing, a hand crank is fixed to one end of the connecting column, a first bevel gear is fixed to the other end of the connecting column, a second bevel gear is provided on one side of the first bevel gear, a threaded column is fixed to one end of the second bevel gear, a second bearing is provided on the outer periphery of the other end of the threaded column, a threaded groove is threadedly connected to the outer periphery of the threaded column, a movable frame is provided on the outer side of the threaded groove, a first slider is fixed to the side wall of the movable frame, a first slide rail is provided on the outer side of the first slider, and an arc-shaped clamping plate is fixed to the other side wall of the movable frame.

[0008] Preferably, the annular bonding plate forms a movable structure with the conical soft rubber shell and the support frame, and the annular bonding plate forms a fixed structure with the observation transparent plate.

[0009] Preferably, the support column forms a rotating structure with the support frame via a first rotating shaft, and the support column forms a sliding structure with the hollow column via a sliding plate, and the sliding plate forms an elastic structure with the hollow column via a damper and a spring, and the hollow column forms a rotating structure with the annular bonding plate via a second rotating shaft.

[0010] Preferably, the connecting column forms a rotating structure with the support frame via the first bearing, and the hand handle forms a fixed structure with the first bevel gear via the connecting column, and the first bevel gear and the second bevel gear form a meshing structure, and the second bevel gear and the threaded column form a fixed structure.

[0011] Preferably, the threaded column forms a rotating structure with the support frame via the second bearing, and the threaded column forms a threaded connection with the movable frame via the threaded groove. The movable frame forms a sliding structure with the first slider and the first slide rail, and the movable frame forms a fixed structure with the arc-shaped clamping plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The shock absorption and noise reduction structure of this impact drill is equipped with a damper and a spring. During the use of the impact drill, the annular bonding plate will contact the wall, and the force can be applied to the hollow column through the annular bonding plate. The hollow column can then transfer the force to the damper and spring, thereby reducing shock and noise. Secondly, the conical soft rubber shell around the drill tip can block some of the noise. The inner and outer edges of the conical soft rubber shell are provided with progressive grooves, which have the effect of reducing noise. This can achieve better shock absorption and noise reduction, avoiding the situation where most shock absorption and noise reduction structures rely on material changes for shock absorption and noise reduction, lacking shock absorption and noise reduction devices, resulting in poor shock absorption and noise reduction effects.

[0014] 2. The shock absorption and noise reduction structure of this impact drill is equipped with a threaded column and a threaded groove. By rotating the hand handle with external force, the first bevel gear can be rotated. Through the meshing structure of the first and second bevel gears, the rotation of the first bevel gear can cause the second bevel gear to rotate, which indirectly drives the threaded column to rotate. Then, through the threaded connection between the threaded column and the threaded groove, the rotation of the threaded column can move the moving frame. The movement of the moving frame can move the arc-shaped clamping plate. The relative movement of the two sets of arc-shaped clamping plates can clamp and fix the lower clamping component, making it convenient to install the device in a suitable position on the impact drill for better use. Attached Figure Description

[0015] Figure 1This is a top view schematic diagram of an impact drill vibration reduction and noise reduction structure proposed in this utility model;

[0016] Figure 2 This is a bottom view schematic diagram of an impact drill vibration reduction and noise reduction structure proposed in this utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of an impact drill vibration reduction and noise reduction structure proposed in this utility model;

[0018] Figure 4 This is a partial structural diagram of an impact drill vibration reduction and noise reduction structure proposed in this utility model.

[0019] In the diagram: 1. Support frame; 2. Circular hole; 3. Conical soft rubber shell; 4. Annular bonding plate; 5. Observation transparent plate; 6. First rotating shaft; 7. Support column; 8. Sliding plate; 9. Damper; 10. Spring; 11. Hollow column; 12. Second rotating shaft; 13. First bearing; 14. Connecting column; 15. Hand handle; 16. First bevel gear; 17. Second bevel gear; 18. Threaded column; 19. Second bearing; 20. Threaded groove; 21. Moving frame; 22. First slider; 23. First slide rail; 24. Arc-shaped clamping plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, a shock-absorbing and noise-reducing structure for an impact drill includes a support frame 1. The side wall of the support frame 1 has a circular hole 2. A conical soft rubber shell 3 is provided on one side of the support frame 1. An annular bonding plate 4 is provided at the other end of the conical soft rubber shell 3. An observation transparent plate 5 is fixed to the side wall of the annular bonding plate 4.

[0023] A support column 7 is provided on one side of the conical soft rubber shell 3. A first rotating shaft 6 is provided at the connection between the support column 7 and the support frame 1. A sliding plate 8 is fixed at the other end of the support column 7. A damper 9 is provided on the other side wall of the sliding plate 8. A spring 10 is provided around the damper 9. A hollow column 11 is provided outside the spring 10. A second rotating shaft 12 is provided at the connection between the hollow column 11 and the annular bonding plate 4.

[0024] The annular bonding plate 4 forms a movable structure with the conical soft rubber shell 3 and the support frame 1, and the annular bonding plate 4 forms a fixed structure with the observation transparent plate 5. The conical soft rubber shell 3 around the electric drill tip can block some noise, and the inner and outer periphery of the conical soft rubber shell 3 are provided with incremental grooves, which have the effect of reducing noise and can achieve better vibration reduction and noise reduction.

[0025] The support column 7 forms a rotating structure with the support frame 1 via the first rotating shaft 6, and the support column 7 forms a sliding structure with the hollow column 11 via the sliding plate 8. The sliding plate 8 forms an elastic structure with the hollow column 11 via the damper 9 and the spring 10. The hollow column 11 forms a rotating structure with the annular bonding plate 4 via the second rotating shaft 12. During the use of the impact drill, the annular bonding plate 4 will contact the wall, and the force can be applied to the hollow column 11 through the annular bonding plate 4. The hollow column 11 can transfer the force to the damper 9 and the spring 10, thereby reducing vibration and noise.

[0026] Example 2

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment further illustrates Example 1. A first bearing 13 is provided on the other side wall of the support frame 1. A connecting column 14 is provided on the inner side of the first bearing 13. A hand crank 15 is fixed to one end of the connecting column 14. A first bevel gear 16 is fixed to the other end of the connecting column 14. A second bevel gear 17 is provided on one side of the first bevel gear 16. A threaded column 18 is fixed to one end of the second bevel gear 17. A second bearing 19 is provided on the outer periphery of the other end of the threaded column 18. A threaded groove 20 is threadedly connected to the outer periphery of the threaded column 18. A movable frame 21 is provided on the outer side of the threaded groove 20. A first slider 22 is fixed to the side wall of the movable frame 21. A first slide rail 23 is provided on the outer side of the first slider 22. An arc-shaped clamping plate 24 is fixed to the other side wall of the movable frame 21.

[0028] The connecting column 14 forms a rotating structure with the support frame 1 via the first bearing 13, and the hand handle 15 forms a fixed structure with the first bevel gear 16 via the connecting column 14. The first bevel gear 16 and the second bevel gear 17 form a meshing structure, and the second bevel gear 17 and the threaded column 18 form a fixed structure. By rotating the hand handle 15 with external force, the first bevel gear 16 can be driven to rotate. Through the meshing structure of the first bevel gear 16 and the second bevel gear 17, the rotation of the first bevel gear 16 can cause the second bevel gear 17 to rotate, which indirectly drives the threaded column 18 to rotate.

[0029] The threaded column 18 forms a rotating structure with the support frame 1 through the second bearing 19, and the threaded column 18 forms a threaded connection with the movable frame 21 through the threaded groove 20. The movable frame 21 forms a sliding structure with the first slide rail 23 through the first slider 22, and the movable frame 21 forms a fixed structure with the arc-shaped clamping plate 24. Through the threaded connection of the threaded column 18 and the threaded groove 20, the rotation of the threaded column 18 can move the movable frame 21, and the movement of the movable frame 21 can move the arc-shaped clamping plate 24. The relative movement of the two sets of arc-shaped clamping plates 24 can clamp the components from the lower side for clamping and fixing, so that the device can be installed in a suitable position on the impact drill according to the requirements for better use.

[0030] Working principle: First, the operator needs to insert the drill tip into the circular hole 2. By turning the handle 15 with external force, the first bevel gear 16 can be rotated. The rotation of the first bevel gear 16 can cause the second bevel gear 17 to rotate, which indirectly drives the threaded column 18 to rotate. The rotation of the threaded column 18 can move the moving frame 21, and the movement of the moving frame 21 can move the arc-shaped clamping plate 24. The relative movement of the two sets of arc-shaped clamping plates 24 can clamp the components from the bottom and fix them, making it convenient to install the device in a suitable position on the impact drill according to the needs. Secondly, during the use of the impact drill, the annular bonding plate 4 will contact the wall. The force can be applied to the hollow column 11 through the annular bonding plate 4. The hollow column 11 can transfer the force to the damper 9 and the spring 10, thereby reducing vibration and noise.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration damping and noise reduction structure for an impact drill, comprising a support frame (1), characterized in that: The support frame (1) has a circular hole (2) on its side wall. A conical soft rubber shell (3) is provided on one side of the support frame (1). An annular bonding plate (4) is provided at the other end of the conical soft rubber shell (3). An observation transparent plate (5) is fixed on the side wall of the annular bonding plate (4). A support column (7) is provided on one side of the conical soft rubber shell (3). A first rotating shaft (6) is provided at the connection between the support column (7) and the support frame (1). A sliding plate (8) is fixed at the other end of the support column (7). A damper (9) is provided on the other side wall of the sliding plate (8). A spring (10) is provided around the damper (9). A hollow column (11) is provided on the outside of the spring (10). A second rotating shaft (12) is provided at the connection between the hollow column (11) and the annular bonding plate (4).

2. The vibration reduction and noise reduction structure for an impact drill according to claim 1, characterized in that: A first bearing (13) is provided on the other side wall of the support frame (1). A connecting column (14) is provided on the inner side of the first bearing (13). A hand crank (15) is fixed at one end of the connecting column (14). A first bevel gear (16) is fixed at the other end of the connecting column (14). A second bevel gear (17) is provided on one side of the first bevel gear (16). A threaded column (18) is fixed at one end of the second bevel gear (17). A second bearing (19) is provided on the outer periphery of the other end of the threaded column (18). A threaded groove (20) is threadedly connected to the outer periphery of the threaded column (18). A movable frame (21) is provided on the outer side of the threaded groove (20). A first slider (22) is fixed on the side wall of the movable frame (21). A first slide rail (23) is provided on the outer side of the first slider (22). An arc-shaped clamping plate (24) is fixed on the other side wall of the movable frame (21).

3. The vibration reduction and noise reduction structure for an impact drill according to claim 1, characterized in that: The annular bonding plate (4) forms a movable structure with the support frame (1) through the conical soft rubber shell (3), and the annular bonding plate (4) forms a fixed structure with the observation transparent plate (5).

4. The vibration reduction and noise reduction structure for an impact drill according to claim 1, characterized in that: The support column (7) forms a rotating structure with the support frame (1) through the first rotating shaft (6), and the support column (7) forms a sliding structure with the hollow column (11) through the sliding plate (8). The sliding plate (8) forms an elastic structure with the hollow column (11) through the damper (9) and the spring (10). The hollow column (11) forms a rotating structure with the annular bonding plate (4) through the second rotating shaft (12).

5. The vibration reduction and noise reduction structure for an impact drill according to claim 2, characterized in that: The connecting column (14) forms a rotating structure with the support frame (1) through the first bearing (13), and the hand handle (15) forms a fixed structure with the first bevel gear (16) through the connecting column (14), and the first bevel gear (16) forms a meshing structure with the second bevel gear (17), and the second bevel gear (17) forms a fixed structure with the threaded column (18).

6. The vibration reduction and noise reduction structure for an impact drill according to claim 2, characterized in that: The threaded column (18) forms a rotating structure with the support frame (1) through the second bearing (19), and the threaded column (18) forms a threaded connection with the movable frame (21) through the threaded groove (20). The movable frame (21) forms a sliding structure with the first slide rail (23) through the first slider (22), and the movable frame (21) forms a fixed structure with the arc-shaped clamping plate (24).

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