Lithium-battery electric hammer

Abstract

The utility model discloses a lithium electric hammer which comprises an electric hammer body, a grip, a connector and a lithium battery pack and further comprises an electric hammer buffering mechanism, a buffering portion of an integrated structure is arranged on one side of the upper portion of the electric hammer body, the lithium battery pack is detachably installed on the lower portion of a protruding base, and the connector is arranged on the side, away from the buffering portion, of the upper portion of the electric hammer body. An output head is detachably installed on the connector, a driving shaft used for driving the connector to rotate or vibrate is arranged in the electric hammer body, and the electric hammer buffering mechanism is located in the buffering part. The electric hammer buffering mechanism is installed at one end of the driving shaft, impact force generated by the driving shaft can be transmitted to the electric hammer buffering mechanism, and the electric hammer buffering mechanism plays a buffering role, so that the impact force is reduced, shaking generated during hammering is reduced, operation of workers is facilitated, meanwhile, damage caused by impact of the driving shaft is reduced, and the service life of the workers is prolonged. The service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to a lithium-ion electric hammer. Background Art

[0002] The transmission mechanism of a current electric hammer is responsible for driving the drill bit's rotation and hammering motion. Specifically, the motor drives the rotating sleeve through a gear reduction mechanism, which in turn drives the drill bit. Simultaneously, the motor also drives the eccentric shaft through another set of gear reduction mechanisms. The eccentric shaft's rotation is converted into reciprocating motion by the connecting rod and piston. The piston, using compressed air, forces the hammer to continuously strike the impact rod within the cylinder, which in turn hammers the drill bit, generating both rotation and impact force.

[0003] To switch the hammer's operating mode, the user operates a switch. For a mechanical switch, the user rotates a knob or moves a connecting rod, changing the transmission mechanism's connection or operating state to switch between drilling and hammering.

[0004] The utility model patent with patent authorization announcement number CN221583495U discloses a heavy-duty electric hammer for both hammer and drill. Although it can achieve dual functions of hammer and drill, when in use, due to the strong hammering force, the impact generated will cause large vibrations, thereby affecting the normal operation of the staff. At the same time, the impact generated during the hammering process is also likely to cause damage to the internal drive shaft. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium-electric hammer, which solves the problem of damage to the drive shaft caused by large vibration and impact force proposed in the above background technology by setting an electric hammer buffer mechanism.

[0006] According to one aspect of the present disclosure, the following technical solution is provided: a lithium-electric electric hammer, comprising an electric hammer body, a handle, a connector and a lithium battery pack, and also comprising an electric hammer buffer mechanism, wherein a buffer portion of an integrated structure is provided on one side of the upper part of the electric hammer body, a protruding seat is fixedly provided on one side of the electric hammer body below the buffer portion, and an opening is formed between the protruding seat and the buffer portion, the upper and lower ends of the handle are fixedly connected to the buffer portion and the protruding seat respectively, the lithium battery pack is detachably mounted on the lower part of the protruding seat, the connector is provided on a side of the upper part of the electric hammer body away from the buffer portion, an output head is detachably mounted on the connector, a drive shaft for driving the connector to rotate or vibrate is provided inside the electric hammer body, the electric hammer buffer mechanism is located in the buffer portion, and one end of the electric hammer buffer mechanism is in contact with the drive shaft.

[0007] According to the lithium-ion electric hammer of at least one embodiment of the present disclosure, the electric hammer buffer mechanism includes a fixed seat, a movable seat and a spring. The fixed seat is fixedly installed at one end of the buffer part away from the drive shaft position, the movable seat is slidably installed at one end of the buffer part close to the drive shaft position, one end of the drive shaft is inserted into the movable seat, and the spring is fixedly installed at a position between the movable seat and the fixed seat.

[0008] According to the lithium-ion electric hammer of at least one embodiment of the present disclosure, sliding sleeves are fixedly installed at both ends of the side of the movable seat, and sliding rods are fixedly installed at both ends of the side of the fixed seat, and the sliding rods are movably inserted into the sliding sleeves at corresponding positions.

[0009] According to the lithium-electric hammer of at least one embodiment of the present disclosure, a ventilation slot is provided on the surface of the buffer portion at the position of the hammer buffer mechanism.

[0010] According to the lithium-electric rotary hammer of at least one embodiment of the present disclosure, a corrugated rubber sleeve is provided between the fixed seat and the movable seat.

[0011] According to at least one embodiment of the lithium-ion electric hammer disclosed herein, a handle is fixedly mounted on one side of the hammer body close to the connection head.

[0012] According to at least one embodiment of the lithium-electric hammer disclosed herein, a switching switch is provided on the surface of the hammer body, and the switching switch is used to control the rotation or vibration of the drive shaft.

[0013] According to the lithium-electric rotary hammer of at least one embodiment of the present disclosure, the output head is any one of a drill rod, a pick or an electric hammer.

[0014] The technical effects and advantages of this utility model are:

[0015] The utility model lithium electric hammer has a light structure and is easy for workers to operate;

[0016] It uses lithium battery power source, which is easy to carry and does not require power cord;

[0017] The utility model installs an electric hammer buffer mechanism at one end of the drive shaft, so that the impact force generated by the drive shaft can be transmitted to the electric hammer buffer mechanism, and the electric hammer buffer mechanism plays a buffering role, thereby reducing the impact force and reducing the vibration generated during hammering, thereby facilitating operation by workers, and at the same time reducing damage caused by the impact of the drive shaft and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1 It is a three-dimensional diagram of a lithium-electric hammer of the present invention.

[0020] Figure 2 It is a cross-sectional view of a lithium-electric hammer of the present invention.

[0021] Figure 3 It is a structural diagram of the electric hammer buffer mechanism in the utility model.

[0022] The specific reference numerals in the figure are:

[0023] 1. Electric hammer body; 11. Switch; 12. Projecting seat; 2. Lithium battery pack; 3. Grip; 4. Buffer; 41. Ventilation slot; 5. Connector; 51. Drive shaft; 52. Output connector; 6. Handle; 7. Electric hammer buffer mechanism; 71. Fixed seat; 72. Movable seat; 73. Sleeve; 74. Slide rod; 75. Spring. DETAILED DESCRIPTION

[0024] For descriptive purposes, this disclosure may use spatially relative terms such as "below," "beneath," "beneath," "below," "above," "upper," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the drawings is turned over, a component described as "below" or "beneath" another component or feature would then be oriented "above" the other component or feature. Thus, the exemplary term "below" can encompass both "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

[0025] like Figure 1-2 As shown, a lithium-electric hammer in the present disclosure includes an electric hammer body 1, a handle 3, a connector 5 and a lithium battery pack 2, and also includes an electric hammer buffer mechanism 7. A buffer portion 4 of an integrated structure is provided on one side of the upper part of the electric hammer body 1, and a protruding seat 12 is fixedly provided on one side of the electric hammer body 1 below the buffer portion 4. An opening is formed between the protruding seat 12 and the buffer portion 4. The upper and lower ends of the handle 3 are fixedly connected to the buffer portion 4 and the protruding seat 12 respectively. The lithium battery pack 2 is detachably mounted on the lower part of the protruding seat 12. The connector 5 is provided on the side of the upper part of the electric hammer body 1 away from the buffer portion 4. An output head 52 is detachably mounted on the connector 5. A drive shaft 51 for driving the connector 5 to rotate or vibrate is provided inside the electric hammer body 1. The electric hammer buffer mechanism 7 is located in the buffer portion 4, and one end of the electric hammer buffer mechanism 7 is in contact with the drive shaft 51.

[0026] like Figure 3 As shown, in this embodiment, the electric hammer buffer mechanism 7 includes a fixed seat 71, a movable seat 72 and a spring 75. The fixed seat 71 is fixedly installed at one end of the buffer part 4 away from the drive shaft 51, and the movable seat 72 is slidably installed at one end of the buffer part 4 close to the drive shaft 51. One end of the drive shaft 51 is inserted into the movable seat 72, and the spring 75 is fixedly installed between the movable seat 72 and the fixed seat 71.

[0027] In this embodiment, sliding sleeves 73 are fixedly installed at both ends of the side of the movable seat 72, and sliding rods 74 are fixedly installed at both ends of the side of the fixed seat 71. The sliding rods 74 are movably inserted into the sliding sleeves 73 at corresponding positions.

[0028] Furthermore, in order to avoid the influence of the internal air pressure of the buffer part 4 on the buffering, in this embodiment, a ventilation slot 41 is opened on the surface of the buffer part 4 at the position of the electric hammer buffer mechanism 7.

[0029] In this embodiment, a corrugated rubber sleeve is provided between the fixed seat 71 and the movable seat 72 to prevent dust from entering and extend the service life of the components in the electric hammer buffer mechanism 7 and the buffer part 4.

[0030] Furthermore, in order to facilitate the staff to hold it, in this embodiment, a handle 6 is fixedly installed on one side of the electric hammer body 1 near the connection head 5.

[0031] In this embodiment, a switch 11 is provided on the surface of the electric hammer body 1. The switch 11 is used to control the rotation or vibration of the drive shaft 51. The switch 11 can be mechanical or electronic.

[0032] Furthermore, to improve applicability, in this embodiment, the output head 52 is any one of a drill rod, a pick or an electric hammer, thereby having the three functions of drilling, hammering and picking.

[0033] The specific operation steps are as follows: the impact force generated by the drive shaft 51 can be transmitted to the movable seat 72, and the movable seat 72 will move. During the movement, the elastic force and tension of the spring 75 can buffer the movable seat 72, thereby reducing the impact force;

[0034] The user holds the grip 3 and the handle 6 with both hands respectively, and then switches between the drilling and hammering states by switching the switch 11 to realize drilling and hammering.

[0035] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0037] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.

Claims

1. A lithium-ion electric hammer, comprising an electric hammer body, a handle, a connector, and a lithium battery pack, characterized in that: It also includes an electric hammer buffer mechanism, wherein an integral buffer portion is provided on one side of the upper part of the electric hammer body, a protruding seat is fixedly provided on one side of the electric hammer body below the buffer portion, and an opening is formed between the protruding seat and the buffer portion. The upper and lower ends of the handle are respectively fixedly connected to the buffer portion and the protruding seat, and the lithium battery pack is detachably mounted on the lower part of the protruding seat. The connecting head is provided on a side of the upper part of the electric hammer body away from the buffer portion, and an output head is detachably mounted on the connecting head. A drive shaft for driving the connecting head to rotate or vibrate is provided inside the electric hammer body, and the electric hammer buffer mechanism is located in the buffer portion, and one end of the electric hammer buffer mechanism is in contact with the drive shaft.

2. The lithium-ion electric hammer according to claim 1, characterized in that: The electric hammer buffer mechanism includes a fixed seat, a movable seat and a spring. The fixed seat is fixedly installed at one end of the buffer part away from the drive shaft position, the movable seat is slidably installed at one end of the buffer part close to the drive shaft position, one end of the drive shaft is inserted into the movable seat, and the spring is fixedly installed between the movable seat and the fixed seat.

3. The lithium-ion electric hammer according to claim 2, characterized in that: Sliding sleeves are fixedly installed at both ends of the side surface of the movable seat, and sliding rods are fixedly installed at both ends of the side surface of the fixed seat. The sliding rods are movably inserted into the sliding sleeves at corresponding positions.

4. The lithium-ion electric hammer according to claim 1, characterized in that: A ventilation slot is provided on the surface of the buffer portion at the position of the electric hammer buffer mechanism.

5. The lithium-ion electric hammer according to claim 3, characterized in that: A corrugated rubber sleeve is sleeved between the fixed seat and the movable seat.

6. The lithium-ion electric hammer according to claim 1, characterized in that: A handle is fixedly installed on one side of the electric hammer body close to the connecting head.

7. The lithium-ion electric hammer according to claim 1, characterized in that: A switching switch is provided on the surface of the electric hammer body, and the switching switch is used to control the rotation or vibration of the drive shaft.

8. The lithium-ion electric hammer according to claim 1, characterized in that: The output head is any one of a drill rod, a pick or an electric hammer.

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