Mechanism facilitating gear shifting of electric hammer

Abstract

The utility model discloses a mechanism convenient for gear shifting of an electric hammer, which comprises an electric hammer component, and a clutch device is fixedly mounted in the electric hammer component; according to the utility model, the sliding rod is inserted into the first spring, the second spring, the driving plate, the first clutch block, the second clutch block and the gear locking plate, so that the condition that a plurality of supporting shafts are needed to support parts can be avoided, and the effect of saving space is achieved; meanwhile, a first spring and a second spring cannot be twisted or deformed during contraction and expansion actions, so that stable operation of the first spring and the second spring is guaranteed, and a guiding effect is achieved for sliding of a driving plate, a first clutch block, a second clutch block and a gear locking plate; and the first clutch block can drive the oscillating bar bearing clutch and the second clutch block to drive the gear to accurately perform meshing and disengaging actions, so that the effect of accurate gear shifting is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electric hammer technology, and in particular to a mechanism that facilitates the gear shifting of an electric hammer. Background Technology

[0002] An electric hammer is an electrically powered rotary hammer drill with a safety clutch and a pneumatic hammering mechanism.

[0003] During use, electric hammers need to be used in different ways depending on the environment, such as impacting, rotating, or locking the output shaft gear. Generally, gears that can move and engage or disengage under the adjustment of the clutch are used. However, when adjusting the clutch, there are often situations where the gears get stuck or fail to engage successfully, so multiple adjustments are needed to engage the gears and achieve the effect of adjusting the electric hammer gears. However, multiple adjustments will cause wear on the gears.

[0004] Therefore, we provide a mechanism that facilitates the switching of electric hammer gears. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a mechanism that facilitates gear shifting in electric hammers, achieving accurate gear adjustment and reducing gear wear.

[0006] In view of this, the present invention provides a mechanism for facilitating the gear shifting of an electric hammer, including an electric hammer component, wherein a clutch device is fixedly installed inside the electric hammer component;

[0007] The clutch device includes a slide rod, a first spring, a second spring, a drive plate, a first clutch block, a second clutch block, and a gear lock plate.

[0008] Preferably, the periphery of the slide rod is inserted into the inner wall of the first spring, the second spring, the driving plate, the first clutch block, the second clutch block, and the gear lock plate, and the periphery of the slide rod is rotatably connected to the inner wall of the driving plate, the first clutch block, the second clutch block, and the gear lock plate, and both ends of the slide rod extend to the outside of the gear lock plate.

[0009] Preferably, the drive plate is disposed on one side inside the gear lock plate, and the first clutch block and the second clutch block are both disposed on one side inside the drive plate and the gear lock plate.

[0010] Preferably, the first clutch block and the second clutch block are fixedly connected to the two ends of the second spring on opposite sides.

[0011] Preferably, one side of the active plate is fixedly connected to one end of the first spring, and the side of the first spring away from the active plate is fixedly connected to the inside side of the gear lock plate.

[0012] Preferably, the size of the first spring is smaller than the size of the second spring.

[0013] Preferably, one side of the upper half of the first clutch block is inserted into the rocker arm bearing clutch, and one side of the upper half of the second clutch block is inserted into the gear.

[0014] Compared with the prior art, this utility model provides a mechanism that facilitates the gear shifting of an electric hammer, and has the following beneficial effects:

[0015] 1. This utility model, by setting a second spring, pushes the first clutch block. Simultaneously, when the first clutch block fails to engage the rocker arm bearing clutch, the second spring continues to push the first clutch block. At this time, when the electric hammer starts or runs, the rotation of the rocker arm bearing clutch is instantly no longer misaligned with the meshing object. The rocker arm bearing clutch loses the obstruction of the meshing object, and the second spring continues to push the first clutch block, enabling the first clutch block to engage the rocker arm bearing clutch with the meshing object. Furthermore, the second spring can also push the second clutch block. Simultaneously, when the second clutch block fails to engage the gear, the second spring continues to push the second clutch block. At this time, when the electric hammer starts or runs, the rotation of the gear is instantly no longer misaligned with the meshing object. The gear loses the obstruction of the meshing object, and the second spring continues to push the second clutch block, enabling the second clutch block to engage the gear. This avoids multiple adjustments, which would cause wear to the rocker arm bearing clutch or gear, thus achieving accurate gear adjustment and reducing wear.

[0016] 2. This utility model, by setting the slide rod to be in an interlocking state with the first spring, the second spring, the driving plate, the first clutch block, the second clutch block, and the gear lock plate, eliminates the need for multiple support shafts to support the components, thereby saving space. At the same time, it ensures that the first spring and the second spring will not twist or deform during contraction and expansion, thus guaranteeing the stable operation of the first spring and the second spring. It also guides the sliding of the driving plate, the first clutch block, the second clutch block, and the gear lock plate, enabling the first clutch block to drive the rocker arm bearing clutch and the second clutch block to drive the gear to accurately engage and disengage, thereby achieving accurate gear shifting.

[0017] 3. This utility model, by setting a combination of a first spring and a second spring, can provide assistance for the movement of the active plate, and can complete the gear adjustment with less force, thereby achieving the effect of labor-saving gear adjustment with one hand during operation and the effect of fast gear adjustment speed.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a mechanism for facilitating gear shifting in an electric hammer, as proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the pushing component structure of a mechanism for facilitating gear shifting in an electric hammer, as proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the clutch device component of a mechanism for facilitating gear shifting in an electric hammer, as proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the clutch component structure of a mechanism for facilitating gear shifting in an electric hammer, as proposed in this utility model.

[0023] Figure 5 This is a schematic diagram of the gear locking plate component of a mechanism for facilitating gear shifting in an electric hammer, as proposed in this utility model.

[0024] Figure 6 This is a schematic diagram of the active plate component of a mechanism for facilitating gear shifting in an electric hammer, as proposed in this utility model.

[0025] In the diagram: 1. Electric hammer component; 3. Slide rod; 4. First spring; 5. Second spring; 6. Drive plate; 7. First clutch block; 8. Second clutch block; 9. Gear lock plate; 10. Clutch device. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0028] Example: A mechanism for facilitating the switching of electric hammer gears, such as... Figures 1-6 As shown, it includes an electric hammer component 1, and a clutch device 10 is fixedly installed inside the electric hammer component 1;

[0029] The clutch device 10 includes a slide bar 3, a first spring 4, a second spring 5, a drive plate 6, a first clutch block 7, a second clutch block 8, and a gear lock plate 9.

[0030] When adjusting the gear position of the electric hammer, supported by the slide rod 3, the rotating handle is first turned, pushing the drive plate 6 to the left or right. When the drive plate 6 pushes the first clutch block 7, supported by the second clutch block 8, the second spring 5 unfolds, allowing the first clutch block 7 to engage the rocker arm bearing clutch. Alternatively, the second spring 5 retracts, disengaging the rocker arm bearing clutch. When the drive plate 6 pushes the second clutch block 8, supported by the first clutch block 7, the second spring 5 unfolds, and the drive plate 6 pushes the gear locking plate 9, engaging the gear. The gear locking plate 9 does not lock the gear. Alternatively, the second spring 5 retracts, pushing the first spring 4, which in turn pushes the gear locking plate 9, disengaging the gear. The gear locking plate 9 can either not lock the gear or lock it, thus achieving the effect of shifting the electric hammer gear position.

[0031] like Figures 1-6 As shown, the slide rod 3 is inserted into the inner wall of the first spring 4, the second spring 5, the driving plate 6, the first clutch block 7, the second clutch block 8, and the gear lock plate 9. The slide rod 3 is rotatably connected to the inner wall of the driving plate 6, the first clutch block 7, the second clutch block 8, and the gear lock plate 9. Both ends of the slide rod 3 extend to the outside of the gear lock plate 9.

[0032] By setting the slide rod 3 in an interlocking state with the first spring 4, the second spring 5, the driving plate 6, the first clutch block 7, the second clutch block 8, and the gear locking plate 9, the need for multiple support shafts to support the components can be eliminated, thus saving space. Simultaneously, it ensures that the first spring 4 and the second spring 5 will not twist or deform during their retraction and expansion movements on the slide rod 3, guaranteeing their stable operation. Furthermore, the driving plate 6, the first clutch block 7, the second clutch block 8, and the gear locking plate 9 can slide on the slide rod 3, which acts as a guide. The function of the sliding rod 3 is to push the first clutch block 7 to slide, so that the first clutch block 7 can drive the rocker arm bearing clutch to accurately engage and disengage. In addition, the sliding rod 6 can also push the second clutch block 8 to slide, so that the second clutch block 8 can drive the gear to accurately engage and disengage, thereby achieving the effect of accurate gear adjustment by the first clutch block 7 and the second clutch block 8. At the same time, the two ends of the sliding rod 3 are fixedly connected to the inside of the electric hammer, so that it can provide stable support for the operation of the first spring 4, the second spring 5, the sliding rod 6, the first clutch block 7, the second clutch block 8, and the gear locking plate 9.

[0033] like Figures 1-6 As shown, the drive plate 6 is located inside one side of the gear lock plate 9, and the first clutch block 7 and the second clutch block 8 are both located inside the drive plate 6 and the gear lock plate 9.

[0034] The first clutch block 7 and the second clutch block 8 are fixedly connected to both ends of the second spring 5 on opposite sides.

[0035] One side of the active plate 6 is fixedly connected to one end of the first spring 4, and the side of the first spring 4 away from the active plate 6 is fixedly connected to the inside side of the gear lock plate 9.

[0036] The size of the first spring 4 is smaller than the size of the second spring 5.

[0037] The upper half of the first clutch block 7 is connected to the rocker arm bearing clutch on one side, and the upper half of the second clutch block 8 is connected to the gear on one side.

[0038] The second spring 5, supported by the second clutch block 8, provides a thrust to the first clutch block 7, enabling the first clutch block 7 to engage the rocker arm bearing clutch. Simultaneously, when the rocker arm bearing clutch is not fully engaged with the target object, the second spring 5 continues to provide a thrust to the first clutch block 7. When the electric hammer starts, the rocker arm bearing clutch begins to rotate and engages with the target object momentarily. At this time, the second spring 5 pushes the first clutch block 7 to continue moving, causing it to engage with the target object. Furthermore, the second spring 5, supported by the first clutch block 7, also provides a thrust to the second clutch block 8, enabling the second clutch block 8 to engage the gear. Simultaneously, when the gear is not fully engaged with another gear, the second spring 5 continues to provide a thrust to the second clutch block 8. When the electric hammer starts... As the gear begins to rotate, it can engage with the meshing body at the instant of rotation. At this time, the second spring 5 can push the second clutch block 8 to continue moving, causing it to engage with another gear. This avoids the need for multiple adjustments to the engagement, which would cause wear on the rocker arm bearing clutch or gear. This reduces the wear on the rocker arm bearing clutch or gear, achieving the effect of engagement in one go and reducing wear on the rocker arm bearing clutch or gear. It also allows for gear adjustment during operation. When the drive plate 6 pushes the first clutch block 7 to move, the first spring 4 provides a thrust to the gear locking plate 9, allowing the inner wall of the gear locking plate 9 to be abutted by the other end of the drive plate 6, thus ensuring the stability of the gear locking plate 9 during the operation of the electric hammer. At the same time, the first spring 4 and the second spring 5 provide assistance to the drive plate 6 when it moves, thus achieving a labor-saving effect when adjusting gears during operation.

[0039] Working Principle: When adjusting the gear position of the electric hammer, supported by the slide rod 3, the rotating handle is first turned, pushing the drive plate 6 to the left or right. When the drive plate 6 pushes the first clutch block 7, supported by the second clutch block 8, the second spring 5 unfolds, allowing the first clutch block 7 to engage the rocker arm bearing clutch. Alternatively, the second spring 5 retracts, disengaging the rocker arm bearing clutch. Furthermore, when the drive plate 6 pushes the second clutch block 8, supported by the first clutch block 7, the second spring 5 unfolds, simultaneously pushing the gear locking plate 9. This engages the gear, while the gear locking plate 9 remains unlocked. Alternatively, the second spring 5 retracts, pushing the first spring 4, which in turn pushes the gear locking plate 9, disengaging the gear. The gear locking plate 9 can either remain unlocked or fully locked, thus achieving the gear adjustment purpose.

[0040] 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 mechanism for facilitating the gear change of an electric hammer comprising an electric hammer component (1), characterized in that, The electric hammer part (1) is internally fixedly installed with a clutch device (10); The clutch device (10) comprises a sliding rod (3), a first spring (4), a second spring (5), a driving plate (6), a first clutch block (7), a second clutch block (8) and a gear locking piece (9).

2. The mechanism for facilitating hammer drill gear shifting according to claim 1, wherein, The sliding rod (3) is inserted with the first spring (4), the second spring (5), the driving plate (6), the first clutch block (7), the second clutch block (8) and the middle inner wall of the gear locking piece (9) on the side, and the sliding rod (3) is rotationally connected with the driving plate (6), the first clutch block (7), the second clutch block (8) and the middle inner wall of the gear locking piece (9) on the side, and the two ends of the sliding rod (3) extend to the outside of the gear locking piece (9).

3. The mechanism for facilitating hammer drill gear shifting according to claim 2, wherein, The driving plate (6) is arranged on one side inside the gear locking piece (9), and the first clutch block (7) and the second clutch block (8) are arranged on one side inside the driving plate (6) and the gear locking piece (9).

4. The mechanism for facilitating hammer drill gear shifting according to claim 3, wherein, The first clutch block (7) and the second clutch block (8) are fixedly connected with the two ends of the second spring (5) on opposite sides.

5. The mechanism for facilitating hammer drill gear shifting according to claim 3, wherein, One side of the driving plate (6) is fixedly connected with one end of the first spring (4), and the side away from the driving plate (6) of the first spring (4) is fixedly connected with one side inside the gear locking piece (9).

6. The mechanism for facilitating hammer drill gear shifting according to claim 5, wherein, The size of the first spring (4) is smaller than the size of the second spring (5).

7. The mechanism for facilitating hammer drill gear shifting according to claim 4, wherein, One side of the upper half of the first clutch block (7) is inserted with a swing rod bearing clutch, and one side of the upper half of the second clutch block (8) is inserted with a gear.

Images