Lithium battery electric hammer

Abstract

The utility model discloses a lithium battery electric hammer which comprises a machine body and a handle, a switch is arranged on the handle, a protection plate is connected to the machine body in a sliding mode, a first sliding groove is formed in the machine body, a second sliding groove is formed in the handle, a clamping block is connected into the first sliding groove in a rotating mode, a sliding block is integrally formed on the protection plate, and a clamping groove is formed in the sliding block. The clamping block is clamped into the clamping groove and the protection plate is fixed, so that when the electric hammer is used, the clamping block is pushed to rotate to be separated from the clamping groove and slide the protection plate towards the switch until the protection plate is in contact with the switch, the protection plate continues to slide at the moment, the switch is turned on, finally the protection plate is reset, the clamping block is clamped into the clamping groove, and the protection plate can be fixed; the protection plate is prevented from sliding when the electric hammer is used to touch the switch by mistake, the protection plate in the design can play a role in preventing the switch from being touched by mistake, and the protection plate can be self-locked after the switch is turned on, so that the effect of preventing the switch from being touched by mistake is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the electric tool field relates to electric hammer, especially in kind of lithium battery electric hammer. BACKGROUND

[0002] Electric hammer is a kind of electric rotary hammer drill with safety clutch attached pneumatic hammer mechanism, electric hammer is the principle of using piston movement, compressed gas impact drill bit, do not need to hand to make how much force, can be in concrete, brick, stone etc. Hard material on 6-100mm hole, electric hammer is high in the above-mentioned material on the hole efficiency, but it cannot be on metal hole.

[0003] Such as the electric hammer of CN207326897U, including: motor, with motor shaft;Output shaft, with the motor shaft is arranged at the angle, output shaft is used to connect the work head;Transmission mechanism, is arranged between the motor shaft and the output shaft;Hammer mechanism, for hammering the work head;Housing, including the first housing and the second housing of the first housing butt joint, the first housing is used to accommodate the output shaft and hammer mechanism, the second housing is used to accommodate the motor and transmission mechanism, the housing is connected with handle, the first housing and the second housing include the first side near the handle and the second side away from the handle, the distance between the first side of the first housing and the motor shaft axis is L1, the distance between the first side of the second housing and the motor shaft axis is L2, and L1

[0004] But the switch of the above-mentioned electric hammer is arranged on the handle, when holding the electric hammer, there is the case of accidental touch switch, influence the use of electric hammer. Utility model content

[0005] The utility model provides a kind of lithium battery electric hammer, can lock switch when electric hammer is used.

[0006] The utility model provides a kind of lithium battery electric hammer, can lock switch when electric hammer is used.

[0007] The utility model further preferably technical scheme is that the convex block is fixedly connected on the inner side wall of the protective plate, when the protective plate slides to switch, the convex block is abutted with switch.

[0008] The utility model further preferably technical scheme is that the convex block is fixedly connected on the inner side wall of the protective plate, when the protective plate slides to switch, the convex block is abutted with switch.

[0009] The further preferred technical scheme of the utility model is that the convex block is equipped with an arc surface.

[0010] The further preferred technical scheme of the utility model is that the clamping block is hinged on the inner top surface of the sliding groove one through a pin shaft, a torsional spring is sleeved between the pin shaft and the clamping block, and the torsional spring deforms when the included angle between the clamping block and the sliding groove one decreases.

[0011] The further preferred technical scheme of the utility model is that the inner top surface of the sliding groove one is fixedly connected with a limiting block on the side close to the switch, the clamping block and the limiting block abut when the clamping block abuts against the clamping groove, and the clamping block and the limiting block are perpendicular to each other.

[0012] The further preferred technical scheme of the utility model is that the sliding block and the sliding groove one are equipped with spring one, spring two is arranged between the one end of the protective plate and the sliding groove two, and the spring one and the spring two deform when the convex block abuts against the switch.

[0013] The further preferred technical scheme of the utility model is that the sliding groove one is slidably connected with a push rod, the one end of the push rod abuts against the clamping block, and the other end of the push rod extends to the outside of the sliding groove one, the clamping block is separated from the clamping groove and the limiting block when the push rod slides into the sliding groove one.

[0014] The further preferred technical scheme of the utility model is that the push rod is equipped with a plurality of abutting blocks.

[0015] The further preferred technical scheme of the utility model is that the clamping block has elastic deformation capacity.

[0016] Compared with the prior art, the utility model discloses a machine body and a handle, the handle is equipped with a switch, the machine body is slidably connected with a protective plate, the machine body is provided with a sliding groove one, the handle is provided with a sliding groove two, the sliding groove one is rotatably connected with a clamping block, the protective plate is integrally formed with a sliding block, the sliding block is provided with a clamping groove, the clamping block is clamped into the clamping groove and the protective plate is fixed when the protective plate is separated from the switch, so when using the electric hammer, the clamping block is pushed to rotate and make it separate from the clamping groove and slide the protective plate to the switch, until the protective plate contacts the switch, at this time, the switch is opened by continuously sliding the protective plate, finally, the protective plate is reset and the clamping block is clamped into the clamping groove, so the protective plate can be fixed, avoiding the protective plate from sliding and touching the switch by mistake, the protective plate in the design can prevent the switch from being touched by mistake, and can be self-locked after the switch is opened, further improving the effect of preventing from being touched by mistake. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present utility model will be further described in detail below in combination with the drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be regarded as limiting the scope of the present utility model. In addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described objects and can contain exaggerated display, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 The overall structure of the present utility model Figure 1 ;

[0019] Figure 2 The overall structure of the present utility model Figure 2 ;

[0020] Figure 3 The explosion of the present utility model Figure 1 ;

[0021] Figure 4 The explosion of the present utility model Figure 2 ;

[0022] Figure 5 The sectional view of the present utility model

[0023] Figure 6 The present utility model Figure 5 is an enlarged view of A.

[0024] In the figure: 1, machine body; 2, handle; 3, switch; 4, protective plate; 5, protruding block; 6, push rod; 7, sliding groove one; 8, spring two; 9, spring one; 10, sliding block; 11, clamping groove; 12, clamping block; 13, sliding groove two; 14, pin shaft; 15, torsional spring; 16, limiting block; 17, abutting block. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present utility model will be described in detail below with reference to the drawings. Those skilled in the art will appreciate that these descriptions are only descriptive, exemplary, and should not be interpreted as limiting the scope of protection of the present utility model.

[0026] It should be noted that: similar reference numerals represent similar items in the following drawings, therefore, once an item is defined in one drawing, it can not be further defined and explained in the subsequent drawings.

[0027] Figures 1-4As shown, a lithium battery electric hammer, including machine body 1 and handle 2 provided on the machine body 1, handle 2 is provided with switch 3, the machine body 1 is slidably connected with the guard plate 4, the guard plate 4 is arc-shaped plate, when pushing, make hand press more comfortable, the machine body 1 is provided with sliding groove one 7, handle 2 is provided with sliding groove two 13, one end of guard plate 4 is located in sliding groove one 7 and slides, the other end of guard plate 4 is located in sliding groove two 13 and slides, when needing to open switch 3, want to slide guard plate 4 to the side close to switch 3, at this time, guard plate 4 gradually approaches switch 3 until abuts with switch 3 to open switch 3, the design plays the role of avoiding hand and switch 3 direct contact, reduces the possibility of nowhere.

[0028] Figures 1-4 As shown, the sliding block 10 is provided with spring one 9 and sliding groove one 7, and the spring two 8 is arranged between the one end of the guard plate 4 and the sliding groove two 13, when the convex block 5 abuts with the switch 3, the spring one 9 and the spring two 8 are deformed.

[0029] Figures 1-4 As shown, therefore, when the guard plate 4 contacts the switch 3, the spring one 9 and the spring two 8 are deformed due to extrusion, when the driving force of the guard plate 4 disappears, the deformed spring one 9 and the spring two 8 drive the guard plate 4 to reset, the design plays the role of driving the guard plate 4 to reset automatically.

[0030] Figures 1-4 As shown, the sliding groove one 7 is rotatably connected with the clamping block 12, and the one end of the guard plate 4 is integrally formed with the sliding block 10 in the sliding groove one 7, and the clamping groove 11 is formed in the sliding block 10, when the guard plate 4 is separated from the switch 3, the clamping block 12 is clamped into the clamping groove 11 and the guard plate 4 is fixed.

[0031] Figures 1-4 As shown, therefore, when the spring one 9 and the spring two 8 drive the guard plate 4 to reset, with the sliding of the guard plate 4, the sliding block 10 and the clamping block 12 contact and drive the clamping block 12 to rotate upward, when the clamping block 12 and the clamping groove 11 on the sliding block 10 are opposite, the clamping block 12 falls down due to gravity and is clamped into the clamping groove 11, thereby fixing the sliding block 10 and the guard plate 4, the design plays the role of clamping the guard plate 4, avoiding the situation that the hand slides the guard plate 4 during operation, the design improves the anti-mis-touch effect of the electric hammer.

[0032] Figures 2-6 As shown, the clamping block 12 is hinged to the top surface in the sliding groove one 7 through the pin shaft 14, and the torsional spring 15 is sleeved between the pin shaft 14 and the clamping block 12, when the included angle between the clamping block 12 and the sliding groove one 7 decreases, the torsional spring 15 is deformed.

[0033] Figures 2-6As shown, when the card block 12 rotates, the card block 12 rotates around the pin shaft 14, and in the process of rotation, the torsional spring 15 deforms until the card block 12 is aligned with the card slot 11, and the deformed torsional spring 15 can drive the card block 12 to be clamped into the card slot 11. This design can ensure that the card block 12 can be smoothly clamped into the card slot 11, thereby fixing the protective plate 4.

[0034] Figures 2-6 As shown, the inner top surface of the sliding groove one 7 is fixedly connected with the limiting block 16 on the side close to the switch 3 of the card block 12. When the card block 12 abuts against the card slot 11, the card block 12 and the limiting block 16 form abutment, and the card block 12 and the inner top surface of the sliding groove one 7 are perpendicular to each other.

[0035] Figures 2-6 As shown, by arranging the limiting block 16, when the card block 12 is clamped into the card slot 11, the card block 12 abuts against the limiting block 16. At this time, the protective plate 4 is pushed towards the switch 3, and the limiting block 16 limits the rotation of the card block 12, so that the card block 12 can only rotate away from the limiting block 16, thereby avoiding the card block 12 from being easily separated from the card slot 11 in the locked state. This design effectively improves the anti-misoperation effect.

[0036] Figures 2-6 As shown, the push rod 6 is slidingly connected in the sliding groove one 7, one end of the push rod 6 abuts against the card block 12, and the other end of the push rod 6 extends out of the sliding groove one 7. When the push rod 6 slides into the sliding groove one 7, the card block 12 is separated from the card slot 11 and the limiting block 16, and the card block 12 has elastic deformation capability.

[0037] Figures 2-6 As shown, when it is necessary to unlock, the push rod 6 is pushed into the sliding groove one 7. At this time, due to the pushing of the force, the card block 12 is separated from the limiting block 16, and the card block 12 deforms and is separated from the card slot 11, thereby completing the unlocking, and further sliding the protective plate 4 to achieve opening of the switch 3. In this design, the push rod 6 plays the effect of facilitating the rotation of the card block 12.

[0038] Figures 2-6 As shown, the push rod 6 is provided with a plurality of abutting blocks 17. When the push rod 6 slides outward, the abutting blocks 17 abut against the inner wall of the sliding groove one 7, thereby playing the role of limiting the sliding range of the push rod 6, avoiding the separation of the push rod 6 from the machine body 1 in the sliding process.

[0039] Figures 2-6 As shown, the convex block 5 is fixedly connected to the inner side wall of the protective plate 4. When the protective plate 4 slides towards the switch 3, the convex block 5 abuts against the switch 3, and the convex block 5 has elasticity.

[0040] Figures 2-6As shown, when the push guard plate 4 is pushed to approach the switch 3, the protrusion 5 is in contact with the switch 3 and is deformed when pressing the switch 3, so as to open the switch 3 and protect the switch 3 from damage.

[0041] Figures 2-6 As shown, the protrusion 5 is provided with an arc surface, further protecting the switch 3.

[0042] Embodiment:

[0043] Figures 2-6 As shown, when the switch 3 needs to be opened, the push rod 6 is slid into the sliding groove 7, at this time, one end of the push rod 6 pushes the clamping block 12 to rotate upward around the folding shaft 14, and the torsion spring 15 is deformed in the process of rotation, the clamping block 12 is separated from the limiting block 16, and the clamping block 12 is also deformed to separate from the clamping groove 11, at this time, the sliding block 10 is unlocked, and the push guard plate 4 is further slid inward, at this time, the spring 9 and the spring 8 are deformed until the protrusion 5 is in contact with the switch 3 and opens the switch 3.

[0044] ​ As shown, when reset, the deformed spring 9 and spring 8 push the push guard plate 4 to reset until the sliding block 10 is in abutment with the inner wall of the sliding groove 7, at this time, the clamping block 12 is opposite to the clamping groove 11, the push rod 6 is further slid outward until the abutment block 17 is in abutment with the sliding groove 7, at this time, since the rotating driving force of the clamping block 12 disappears, the deformed torsion spring 15 drives the clamping block 12 to rotate reversely, so that the bottom end of the clamping block 12 is clamped into the clamping groove 11 and is in abutment with the limiting block 16, thereby completing the locking.

[0045] The above has introduced the lithium battery electric hammer provided by the utility model, the principle and the implementation mode of the utility model have been described by applying specific examples in the paper, and the above embodiment description is only for helping to understand the utility model and the core idea. It should be pointed out that, for ordinary skilled persons in the technical field, on the premise of not departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A lithium battery electric hammer comprising a body and a handle provided on the body, characterized in that, The handle is provided with a switch, the machine body is slidably connected with a protection plate, the machine body is provided with a sliding groove one, the handle is provided with a sliding groove two, one end of the protection plate is slidably located in the sliding groove one, the other end of the protection plate is slidably located in the sliding groove two, the sliding groove one is rotatably connected with a clamping block, one end of the protection plate is integrally formed with a sliding block in the sliding groove one, the sliding block is provided with a clamping groove for clamping the clamping block, when the protection plate is separated from the switch, the clamping block is clamped in the clamping groove and the protection plate is fixed.

2. A lithium battery electric hammer according to claim 1, characterized in that The inner side wall of the protection plate is fixedly connected with a protrusion, when the protection plate slides towards the switch, the protrusion abuts against the switch.

3. A lithium battery electric hammer according to claim 2, characterized in that The protrusion has elasticity.

4. A lithium battery electric hammer according to claim 2, wherein The protrusion is provided with an arc surface.

5. A lithium battery electric hammer according to claim 1, wherein The clamping block is hingedly connected to the top surface of the sliding groove one through a pin shaft, a torsion spring is sleeved between the pin shaft and the clamping block, when the included angle between the clamping block and the sliding groove one decreases, the torsion spring deforms.

6. A lithium battery electric hammer according to claim 1, wherein The top surface of the sliding groove one is fixedly connected with a limiting block on the side close to the switch, when the clamping block abuts against the clamping groove, the clamping block abuts against the limiting block and the clamping block and the top surface of the sliding groove one are perpendicular to each other.

7. A lithium battery electric hammer according to claim 2, wherein The sliding block and the sliding groove one are provided with a spring one, the protection plate and the sliding groove two are provided with a spring two, when the protrusion abuts against the switch, the spring one and the spring two deform.

8. A lithium battery electric hammer according to claim 1, wherein The sliding groove one is slidably connected with a push rod, one end of the push rod abuts against the clamping block, the other end of the push rod extends out of the sliding groove one, when the push rod slides into the sliding groove one, the clamping block is separated from the clamping groove and the limiting block.

9. A lithium battery electric hammer according to claim 8, characterized in that The push rod is provided with a plurality of abutting blocks.

10. A lithium battery electric hammer according to claim 1, wherein The clamping block has elastic deformation capacity.

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