Electric hammer damping mechanism

Abstract

The utility model discloses an electric hammer damping mechanism, which relates to the technical field of electric hammer appliances and comprises an electric hammer main body, a stable shockproof unit and a holding damping unit, the electric hammer body is of an upper-middle-lower three-section structure, and a connector is fixedly connected to the front end of the upper end structure. The stable shockproof units are installed on the front side and the rear side of the electric hammer body. The holding shock absorption unit comprises an installation groove, a damper, a spring, a movable cover and a side clamping plate, the electric hammer is provided with the reliable and stable shock absorption unit, the two grips play a role in stabilizing the head end and the tail end of the electric hammer body respectively, and therefore vibration generated when the electric hammer operates is reduced; the electric hammer is provided with the reliable holding damping unit, when the hand holds the electric hammer, the movable covers on the two sides are squeezed towards the inner side, vibration force generated by operation of the electric hammer can be buffered by the springs on the inner side and then eliminated by the dampers, and therefore damping is effectively carried out, abrasion of the movable covers to the hand can be reduced through the rubber strips, and the holding comfort degree is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric hammer equipment technology, specifically to an electric hammer vibration damping mechanism. Background Technology

[0002] An electric hammer drill is an electrically powered rotary hammer drill equipped with a pneumatic hammering mechanism and a safety clutch. It utilizes the principle of piston motion, using compressed gas to impact the drill bit. It allows for drilling into hard materials such as concrete, brick, and stone without requiring much manual force, and is widely used in engineering operations.

[0003] In existing pneumatic hammer devices, most have a direct-connected handle fixed to the tail. During operation, the vibration of the machine body will be transmitted to the user's hand through the handle, which can cause wear or numbness in the user's hand. Moreover, during hammering operations, it is difficult to control the stability of the pneumatic hammer body by relying solely on the rear handle, which is more likely to cause vibration. Therefore, we propose an electric hammer vibration reduction mechanism. Utility Model Content

[0004] The technical problem this utility model aims to solve is to overcome existing defects and provide a shock-absorbing mechanism for electric hammers. This mechanism features a reliable and stable anti-vibration unit, with two grips that stabilize the head and tail ends of the electric hammer body, thereby reducing vibration during operation. It also has a reliable grip shock-absorbing unit; when held, the movable covers on both sides are pressed inwards, and the vibration generated by the electric hammer is first buffered by the inner springs and then eliminated by the dampers, thus effectively reducing vibration. The rubber strips reduce wear on the hands from the movable covers, improving grip comfort and effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric hammer vibration damping mechanism, comprising an electric hammer body, a stabilizing and vibration damping unit, and a gripping and vibration damping unit;

[0006] Electric hammer body: It has a three-section structure of upper, middle and lower sections, and a connector is fixedly connected to the front end of the upper section;

[0007] Stable shock-absorbing unit: installed on the front and rear sides of the electric hammer body;

[0008] The shock-absorbing unit includes a mounting groove, dampers, springs, a movable cover, and side clamps. The stable shock-absorbing unit includes a main handle, which is fixed to the rear side of the electric hammer body. The main handle has an L-shaped structure, and mounting grooves are provided on both the left and right sides of its vertical section. A groove is provided inward in the middle of the mounting groove. A row of dampers is linearly arrayed inside the groove. Springs are sleeved on the outside of the dampers. The ends of the dampers and springs are both pressed against the inside of the movable cover. Two side clamps are fixedly connected to the end of the movable cover near the main handle. The side clamps are locked in the groove in the middle of the mounting groove and maintain a sliding connection with the groove.

[0009] The main body of the electric hammer serves as the mounting carrier for the shock absorption mechanism. The stable anti-vibration unit provides a dual grip position, which can stabilize both the hammer impact end and the tail of the electric hammer, thereby effectively reducing vibration. The mounting slot is used for the installation of the movable cover. The movable cover is movably connected to the mounting slot through the side clamps. The main handle plays a major role in stabilizing the electric hammer. When the hand is gripping it, the movable covers on both sides are squeezed inward. The vibration force generated by the electric hammer is first buffered by the inner spring and then eliminated by the damper, thereby effectively reducing vibration.

[0010] Furthermore, the grip damping unit also includes a slot, a limiting block, and a retaining ring. Two slots are provided on both the upper and lower sides of the mounting groove. A limiting block is fixedly connected to both the upper and lower ends of the side plate. The limiting blocks are engaged or slidably connected in the slots. A row of retaining rings is fixedly connected in a linear array inside the movable cover. The number of retaining rings is the same as the number of dampers. The dampers and their outer spring ends, away from the main grip, are inserted into the retaining rings. The limiting block, by engaging in the slot, limits the movable cover, preventing it from falling outwards. The retaining ring limits the end of the spring, preventing it from bending.

[0011] Furthermore, the stabilizing and shock-absorbing unit includes a connecting base, a main handle, and a switch button. The connecting base is fixedly connected to the upper rear side of the hammer body. The upper front end of the main handle is sleeved onto the end of the connecting base, and the main handle is fixedly connected to the connecting base by screws. A switch button is installed on the vertical section of the main handle, near the hammer body. The connecting base is used for inserting the main handle, the screws fix the main handle, and the switch button located inside the main handle allows for convenient start / stop control of the device while holding it.

[0012] Furthermore, the stabilizing and shock-absorbing unit also includes a rotating ring, a connecting block, a secondary grip, and a silicone sleeve. The front end of the connector has an annular groove, inside which the rotating ring is rotatably connected. The connecting block is fixedly connected to the outer side of the rotating ring. The secondary grip is inserted into and fixedly connected to the inside of the connecting block, and the lower end of the secondary grip is fitted with a silicone sleeve. The secondary grip is located at the hammering end on the front side of the hammer body. The secondary grip is rotatably connected to the connector via the connecting block and the rotating ring, allowing for flexible rotation of the secondary grip. The silicone sleeve reduces wear on the hands from the secondary grip.

[0013] Furthermore, the stabilizing and shock-absorbing unit also includes an auxiliary connecting rod and a fixing block. An auxiliary connecting rod is located on the lower rear side of the hammer body. A fixing block is fixedly connected to the front end of the auxiliary connecting rod, and the fixing block is fixedly connected to the rear end of the hammer body by bolts. The rear end of the auxiliary connecting rod is inserted into a slot at the lower end of the main handle and fixedly connected to the lower end of the main handle by bolts. The fixing block is used to fix the auxiliary connecting rod to the hammer body, and the auxiliary connecting rod is used to connect the lower end of the main handle to the hammer body, thereby improving the tightness of the connection between the main handle and the hammer body, and also making the grip more stable.

[0014] Furthermore, the grip shock-absorbing unit also includes rubber strips. A row of rubber strips is linearly arranged on the outer sides of both left and right movable covers, and the rubber strips are adhered and fixed in annular grooves on the outer side of the movable covers. The rubber strips can reduce wear on the hands from the movable covers and improve grip comfort.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This electric hammer vibration damping mechanism has the following advantages:

[0016] 1. It has a reliable grip shock absorption unit. The main grip plays a major role in stabilizing the electric hammer. When the hand is gripping it, the movable covers on both sides are squeezed inward. The vibration force generated by the electric hammer is first buffered by the inner spring and then eliminated by the damper, thus effectively absorbing shock. The rubber strip can reduce the wear of the movable cover on the hand and improve the grip comfort.

[0017] 2. It has a reliable and stable shock-absorbing unit. The two grips stabilize the head and tail of the electric hammer body respectively, thereby reducing the vibration generated when the electric hammer is running. The main grip at the tail provides the main stabilizing effect on the electric hammer, while the secondary grip at the front of the electric hammer limits the shaking of the hammering end, thus improving the overall grip stability of the electric hammer.

[0018] 3. This utility model has a reliable and stable shock-absorbing unit. The two grips stabilize the head and tail ends of the electric hammer body, thereby reducing the vibration generated during the operation of the electric hammer. It also has a reliable grip shock absorption unit. When the hand is gripping, the movable covers on both sides are squeezed inward. The vibration force generated by the operation of the electric hammer will be buffered by the inner spring and then eliminated by the damper, thereby effectively reducing shock. The rubber strip can reduce the wear of the movable cover on the hand and improve the grip comfort. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the oblique rear structure of this utility model;

[0020] Figure 2 This is a partial structural diagram of the present invention;

[0021] Figure 3This is a schematic diagram of the internal structure of the movable cover in this utility model;

[0022] Figure 4 This is a schematic diagram of the oblique front structure of this utility model.

[0023] In the diagram: 1. Electric hammer body, 2. Connector, 3. Stabilizing and shockproof unit, 31. Connecting seat, 32. Main grip, 33. Switch button, 34. Auxiliary connecting rod, 35. Fixing block, 36. Rotating ring, 37. Connecting block, 38. Secondary grip, 39. Silicone sleeve, 4. Grip shock absorption unit, 41. Mounting slot, 42. Damper, 43. Spring, 44. Slot, 45. Movable cover, 46. Side plate, 47. Snap ring, 48. Limiting block, 49. Rubber strip. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 This embodiment provides a technical solution: an electric hammer shock absorption mechanism, including an electric hammer body 1, a stabilizing shock absorption unit 3, and a gripping shock absorption unit 4;

[0026] Electric hammer body 1: It has a three-section structure of upper, middle and lower sections, and a connector 2 is fixedly connected to the front end of the upper section;

[0027] Stable shockproof unit 3: Installed on the front and rear sides of the electric hammer body 1;

[0028] The shock-absorbing unit 4 includes a mounting groove 41, a damper 42, a spring 43, a movable cover 45, and side clamping plates 46. The stable shock-absorbing unit 3 includes a main handle 32, which is fixedly mounted on the rear side of the electric hammer body 1. The main handle 32 has an L-shaped structure, and mounting grooves 41 are provided on both the left and right sides of its vertical section. A groove is provided inward in the middle of the mounting groove 41. A row of dampers 42 is linearly arrayed inside the groove. Springs 43 are sleeved on the outside of the dampers 42. The ends of the dampers 42 and the springs 43 are both pressed against the inside of the movable cover 45. Two side clamping plates 46 are fixedly connected to the end of the movable cover 45 near the main handle 32. The side clamping plates 46 are locked in the groove in the middle of the mounting groove 41 and maintain a sliding connection with the groove.

[0029] The main body 1 of the electric hammer serves as the mounting carrier for the shock absorption mechanism. The stable anti-vibration unit 3 provides a dual grip position, which can stabilize both the hammer end and the tail of the electric hammer, thereby effectively reducing the generation of vibration. The mounting groove 41 is used for the installation of the movable cover 45. The movable cover 45 is movably connected to the mounting groove 41 through the side clamping plate 46. The main handle 32 plays a major role in stabilizing the electric hammer. When the hand holds the hammer, the movable covers 45 on both sides are squeezed inward. The vibration force generated by the operation of the electric hammer will first be buffered by the inner spring 43 and then eliminated by the damper 42, thereby effectively reducing vibration.

[0030] The grip damping unit 4 also includes a slot 44, a limiting block 48, and a retaining ring 47. Two slots 44 are provided on both the upper and lower sides of the mounting groove 41. A limiting block 48 is fixedly connected to both the upper and lower ends of the side plate 46. The limiting block 48 is engaged and slidably connected in the slot 44. A row of retaining rings 47 is fixedly connected in a linear array inside the movable cover 45. The number of retaining rings 47 is the same as the number of dampers 42. The dampers 42 and the ends of their outer springs 43 away from the main grip 32 are all inserted into the retaining rings 47. The limiting block 48, by engaging inside the slot 44, limits the movable cover 45, preventing it from falling outwards. The retaining ring 47 limits the end of the spring 43, preventing it from bending.

[0031] The stable shockproof unit 3 includes a connecting base 31, a main handle 32, and a switch button 33. The connecting base 31 is fixedly connected to the upper rear side of the hammer body 1. The upper front end of the main handle 32 is sleeved on the end of the connecting base 31, and the main handle 32 is fixedly connected to the connecting base 31 by screws. The switch button 33 is installed on the vertical section of the main handle 32 near the hammer body 1. The connecting base 31 is used for inserting the main handle 32, and the screws fix the main handle 32. The switch button 33 located inside the main handle 32 allows for convenient start and stop control of the device when holding it.

[0032] The stabilizing and shockproof unit 3 also includes a rotating ring 36, a connecting block 37, a secondary grip 38, and a silicone sleeve 39. The front end of the connector 2 has an annular groove, inside which the rotating ring 36 is rotatably connected. The connecting block 37 is fixedly connected to the outer side of the rotating ring 36. The secondary grip 38 is inserted into and fixedly connected to the inside of the connecting block 37, and the lower end of the secondary grip 38 is fitted with the silicone sleeve 39. The secondary grip 38 is located at the hammering end on the front side of the hammer body 1. The secondary grip 38 is rotatably connected to the connector 2 via the connecting block 37 and the rotating ring 36, allowing for flexible rotation of the secondary grip 38. The silicone sleeve 39 reduces wear on the hands caused by the secondary grip 38.

[0033] The stabilizing and shock-absorbing unit 3 also includes an auxiliary connecting rod 34 and a fixing block 35. The auxiliary connecting rod 34 is located on the lower rear side of the hammer body 1. A fixing block 35 is fixedly connected to the front end of the auxiliary connecting rod 34. The fixing block 35 is fixedly connected to the rear end of the hammer body 1 by bolts. The rear end of the auxiliary connecting rod 34 is inserted into a slot at the lower end of the main handle 32 and fixedly connected to the lower end of the main handle 32 by bolts. The fixing block 35 is used to fix the auxiliary connecting rod 34 to the hammer body 1, and the auxiliary connecting rod 34 is used to connect the lower end of the main handle 32 to the hammer body 1, thereby improving the tightness of the connection between the main handle 32 and the hammer body 1, and also making the grip more stable.

[0034] The grip damping unit 4 also includes rubber strips 49. A row of rubber strips 49 is linearly arranged on the outer side of both left and right movable covers 45, and the rubber strips 49 are glued and fixed in the annular grooves on the outer side of the movable covers 45. The rubber strips 49 can reduce the wear of the movable covers 45 on the hands and improve the comfort of gripping.

[0035] The working principle of the electric hammer shock absorption mechanism provided by this utility model is as follows: the connecting seat 31 is used for the insertion of the main handle 32, the screw fixes the main handle 32, and the switch button 33 located inside the main handle 32 can conveniently control the start and stop of the device when holding it; when in use, the two hands hold the main handle 32 and the auxiliary handle 38 respectively. The auxiliary handle 38 is rotatably connected to the connecting head 2 through the connecting block 37 and the rotating ring 36, so that the direction of the auxiliary handle 38 can be flexibly rotated, and it is also convenient for the user to choose the left and right gripping methods according to their habits. The silicone sleeve 39 can reduce the wear of the auxiliary handle 38 on the hands, and the rubber strip 49 can reduce the wear of the movable cover 45 on the hands and improve the grip comfort. This mechanism has a reliable grip shock absorption unit 4. When the hand grips it, the movable covers 45 on both sides are squeezed inward. The vibration force generated by the electric hammer is first buffered by the inner spring 43 and then eliminated by the damper 42, thus effectively reducing shock. The limiting block 48 is inserted into the slot 44 to limit the movable cover 45 and prevent it from falling outward. The retaining ring 47 is used to limit the end of the spring 43 and prevent the spring 43 from bending. This device also features a reliable and stable shock-absorbing unit 3. Two grips stabilize the head and tail ends of the hammer body 1, reducing vibration during operation. The main grip 32 at the tail provides primary stabilization, while the secondary grip 38 at the front limits the shaking at the hammering end, thus improving the overall grip stability. In addition, a fixing block 35 secures the auxiliary connecting rod 34 to the hammer body 1. The auxiliary connecting rod 34 connects the lower end of the main grip 32 to the hammer body 1, thereby improving the tightness of the connection between the main grip 32 and the hammer body 1 and making the grip more stable.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A vibration damping mechanism for an electric hammer, characterized in that: It includes the main body of the electric hammer (1), the stabilizing and shock-absorbing unit (3), and the gripping and shock-absorbing unit (4); Electric hammer body (1): It has a three-section structure of upper, middle and lower, and a connector (2) is fixedly connected to the front end of the upper structure; Stable shockproof unit (3): installed on the front and rear sides of the electric hammer body (1); The gripping shock absorption unit (4) includes a mounting groove (41), a damper (42), a spring (43), a movable cover (45), and a side plate (46). The stable shock absorption unit (3) includes a main grip (32), which is fixedly mounted on the rear side of the electric hammer body (1). The main grip (32) has an L-shaped structure, and mounting grooves (41) are provided on both the left and right sides of its vertical section. A groove is provided inward in the middle of the mounting groove (41). A row of dampers (42) is linearly arrayed inside the groove. A spring (43) is sleeved on the outside of the damper (42). The ends of the damper (42) and the spring (43) are both pressed against the inside of the movable cover (45). The movable cover (45) is fixedly connected to two side plates (46) on the left and right sides near the main grip (32). The side plates (46) are locked in the groove in the middle of the mounting groove (41) and maintain a sliding connection with the groove.

2. The electric hammer vibration damping mechanism according to claim 1, characterized in that: The grip damping unit (4) also includes a slot (44), a limiting block (48), and a retaining ring (47). The mounting groove (41) has two slots (44) on both the upper and lower sides. The side plate (46) is fixedly connected to a limiting block (48) at both the upper and lower ends. The limiting block (48) is locked and slidably connected in the slot (44). The movable cover (45) has a linear array of retaining rings (47) fixedly connected inside. The number of retaining rings (47) is the same as the number of dampers (42). The dampers (42) and their outer springs (43) are all inserted into the retaining rings (47) at the ends away from the main grip (32).

3. The electric hammer vibration damping mechanism according to claim 1, characterized in that: The stabilizing and shockproof unit (3) includes a connecting seat (31), a main handle (32), and a switch button (33). The upper rear side of the electric hammer body (1) is fixedly connected to the connecting seat (31). The upper front end of the main handle (32) is sleeved on the end of the connecting seat (31), and the main handle (32) is fixedly connected to the connecting seat (31) by screws. The switch button (33) is installed on the vertical section of the main handle (32) and on the side close to the electric hammer body (1).

4. The electric hammer vibration damping mechanism according to claim 1, characterized in that: The stabilizing and shockproof unit (3) also includes a rotating ring (36), a connecting block (37), a secondary grip (38), and a silicone sleeve (39). The front end of the connector (2) is provided with an annular groove, and the rotating ring (36) is rotatably connected inside the groove. The connecting block (37) is fixedly connected to the outside of the rotating ring (36). The secondary grip (38) is inserted into and fixedly connected inside the connecting block (37), and the lower end of the secondary grip (38) is tightly fitted with a silicone sleeve (39).

5. The electric hammer vibration damping mechanism according to claim 1, characterized in that: The stabilizing and shockproof unit (3) also includes an auxiliary connecting rod (34) and a fixing block (35). The lower rear side of the electric hammer body (1) is provided with an auxiliary connecting rod (34). A fixing block (35) is fixedly connected to the front end of the auxiliary connecting rod (34). The fixing block (35) is fixedly connected to the rear end of the electric hammer body (1) by bolts. The rear end of the auxiliary connecting rod (34) is inserted into the slot at the lower end of the main handle (32) and is fixedly connected to the lower end of the main handle (32) by bolts.

6. The electric hammer vibration damping mechanism according to claim 1, characterized in that: The gripping shock absorption unit (4) also includes rubber strips (49). A row of rubber strips (49) is arranged linearly on the outer side of both left and right movable covers (45). The rubber strips (49) are glued and fixed in the annular groove on the outer side of the movable cover (45).

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