Electric hammer structure with damping function

Abstract

The utility model provides a hammer structure with shock attenuation function, including fuselage shell, the first handle shell body and second handle shell body of connecting in fuselage shell tail end, first handle shell body and second handle shell body opposite setting, just first handle shell body and second handle shell body splicing form handle department, be equipped with the shock attenuation pad between handle department and fuselage shell, the shock attenuation pad is located the holding side of fuselage shell near handle department, the utility model can improve the shock attenuation effect in the use process of hammer, prevent the obvious vibration transmission of holding position.

Description

Technical Field

[0001] This utility model relates to the field of electric hammers, and in particular to an electric hammer structure with shock absorption function. Background Technology

[0002] An electric hammer drill is an electrically powered rotary hammer drill equipped with a pneumatic hammering mechanism. It uses the piston motion to compress gas and impact the drill bit, which can efficiently open holes in hard materials such as concrete and brick. However, this working method generates a large hammering reaction force, which is transmitted to the handle, causing the handle to vibrate.

[0003] Currently, many electric hammers lack proper shock absorption structures. The handle and the body are mostly directly connected by bolts, which is a rigid connection. This means that the reaction force generated by the hammer blows is applied directly to the operator's hands and arms with almost no reduction. Prolonged use can cause discomfort and fatigue for the operator. Utility Model Content

[0004] The purpose of this utility model is to provide a hammer structure with shock absorption function that can improve the vibration reduction effect during the use of the hammer and prevent significant vibration transmission at the grip position.

[0005] To solve the above-mentioned technical problems, this utility model provides an electric hammer structure with shock absorption function, including a body shell, a first handle shell connected to the tail end of the body shell, and a second handle shell. The first handle shell and the second handle shell are arranged opposite to each other, and the first handle shell and the second handle shell are spliced ​​together to form a handle part. A shock-absorbing pad is provided between the handle part and the body shell, and the shock-absorbing pad is located on the gripping side of the body shell near the handle part.

[0006] Furthermore, the shock-absorbing pad has a protrusion on the side near the handle, and there is a recessed structure between the shock-absorbing pad and the protrusion. Both the first handle housing and the second handle housing are provided with a snap-fit ​​structure that matches the recessed structure.

[0007] Furthermore, the body housing has symmetrical mounting holes on both sides, and the first handle housing has a limiting post on its side that matches the mounting hole, and the limiting post is inserted into the mounting hole.

[0008] Furthermore, the second handle housing has a limiting groove on its side that corresponds to the limiting post, and the limiting post and the limiting groove are detachably engaged.

[0009] Furthermore, the end of the limiting groove is provided with a guide cone surface, and the end of the limiting pile is inserted into the guide cone surface.

[0010] Furthermore, the two sides of the housing are provided with annular grooves, and both the first handle housing and the second handle housing are provided with positioning rings that cooperate with the annular grooves. The positioning rings and the annular grooves are in a gap fit. When the shock-absorbing pads are installed, the positioning rings abut against the side of the annular grooves.

[0011] Furthermore, the side of the housing is provided with a slot, the side of the first handle housing has a first locking block that matches the slot, and the side of the second handle housing has a second locking block that matches the slot. The first locking block and the second locking block are respectively inserted into the slot from both sides, and the first locking block and the second locking block are staggered.

[0012] The beneficial effects of this utility model are as follows: after connecting the first handle housing and the second handle housing to the two sides of the body housing respectively to form the handle part, and installing shock-absorbing pads during the splicing process, the gripping side of the body housing near the handle part has the vibration reduction function of the shock-absorbing pads. When the electric hammer is used, the vibration can be absorbed and buffered at this position through the shock-absorbing pads, effectively reducing the vibration felt by the operator when holding it, and improving the comfort and safety of use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a partial internal schematic diagram of the present invention.

[0015] Figure 3 This is a schematic diagram of the structure of the first handle housing in this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the second handle housing in this utility model.

[0017] Reference numerals: 1. Body housing; 2. First handle housing; 3. Second handle housing; 4. Shock-absorbing pad; 5. Protrusion; 6. Recessed structure; 7. Buckling structure; 8. Mounting hole; 9. Limiting post; 10. Limiting groove; 11. Guide cone surface; 12. Annular groove; 13. Positioning ring; 14. Slot; 15. First locking block; 16. Second locking block. Detailed Implementation

[0018] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0019] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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, the above terms should not be construed as a limitation of this utility model.

[0020] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0021] like Figures 1-4 The present invention provides an electric hammer structure with shock absorption function, including a body shell 1, a first handle shell 2 connected to the tail end of the body shell 1 and a second handle shell 3. The first handle shell 2 and the second handle shell 3 are arranged opposite to each other, and the first handle shell 2 and the second handle shell 3 are spliced ​​together to form a handle part. A shock-absorbing pad 4 is provided between the handle part and the body shell 1. The shock-absorbing pad 4 is located on the gripping side of the body shell 1 near the handle part.

[0022] After connecting the first handle housing and the second handle housing to the two sides of the main body housing respectively, the handle part is formed. During the splicing process, shock-absorbing pads are installed so that the gripping side of the main body housing near the handle part has the vibration reduction function of the shock-absorbing pads. When the electric hammer is used, the vibration can be absorbed and buffered at this position through the shock-absorbing pads, effectively reducing the vibration felt by the operator when holding it, and improving the comfort and safety of use.

[0023] The shock-absorbing pad can be made of rubber material.

[0024] Preferably, the shock-absorbing pad 4 has a protrusion 5 on the side near the handle, and there is a recessed structure 6 between the shock-absorbing pad 4 and the protrusion 5. Both the first handle housing 2 and the second handle housing 3 are provided with a snap-fit ​​structure 7 that matches the recessed structure 6.

[0025] Specifically, when installing the shock-absorbing pad, the protruding part of the shock-absorbing pad is embedded into the connection between the first handle housing, the second handle housing and the main body housing, and the pad is positioned and fixed by the cooperation of the snap-fit ​​structure and the recessed structure, so as to ensure that the shock-absorbing pad is not easy to loosen in the vibration environment.

[0026] Preferably, the body housing 1 has symmetrical mounting holes 8 on both sides, and the first handle housing 2 has a limiting post 9 on its side that matches the mounting hole 8. The limiting post 9 is inserted into the mounting hole 8.

[0027] Specifically, the pre-positioning of the first handle housing and the body housing is achieved through the cooperation of the limiting stake and the mounting hole, which facilitates accurate positioning during subsequent assembly, improves assembly efficiency and structural stability; at the same time, the cooperation of the limiting stake and the mounting hole can effectively prevent relative displacement of the first handle housing during use, enhance the reliability of the overall structure, and synchronously limit the position of the shock-absorbing pad.

[0028] In one embodiment of this solution, the limiting stake and the mounting hole are in clearance fit so that the limiting stake can slide along the mounting hole. Combined with the clearance fit between the positioning ring and the annular groove, the handle can rotate at a certain angle relative to the machine body. That is, the handle rotates towards the shock-absorbing pad with the positioning ring as the center point. Thus, when the electric hammer is used, the shock-absorbing pad can reduce the vibration of the handle.

[0029] Preferably, the second handle housing 3 is provided with a limiting groove 10 corresponding to the limiting post 9 on its side, and the limiting post 9 and the limiting groove 10 are detachably engaged.

[0030] Specifically, after the first handle housing is installed, the second handle housing is connected to the limiting post of the first handle housing through the limiting groove, so as to achieve precise splicing of the two housings and ensure that the handle structure is stable and easy to disassemble and assemble; then the limiting post and the limiting groove are fastened by bolts and other connecting parts, thereby firmly connecting the first handle housing and the second handle housing, further improving the rigidity and seismic performance of the overall structure.

[0031] The limiting groove is a through-hole type, and bolts and other connecting parts are inserted into the limiting groove from the outside of the second handle housing and threaded to the limiting post.

[0032] Preferably, the end of the limiting groove 10 is provided with a guide cone surface 11, and the end of the limiting pile 9 is inserted into the guide cone surface 11.

[0033] Specifically, when installing the second handle housing, first align the limiting stake with the limiting groove for docking. At this time, the guiding effect of the guide cone surface can achieve quick alignment, making it easy for the limiting stake to slide smoothly into the limiting groove, effectively reducing assembly difficulty and improving assembly efficiency.

[0034] Preferably, the body housing 1 has annular grooves 12 on both sides, and the first handle housing 2 and the second handle housing 3 are provided with positioning rings 13 that cooperate with the annular grooves 12. The positioning rings 13 and the annular grooves 12 are in a gap fit. When the shock-absorbing pad 4 is installed, the positioning rings 13 abut against the side of the annular grooves 12.

[0035] Specifically, by connecting the positioning ring to the annular groove, the first handle housing and the second handle housing can be externally limited by the positioning ring. Since the positioning ring and the annular groove are in a gap fit, a certain elastic gap is reserved, which not only ensures the smoothness of assembly, but also allows the gap to be tightened and limited after the shock-absorbing pad is installed, thereby ensuring the vibration reduction effect of the shock-absorbing pad.

[0036] Preferably, the body housing 1 has a slot 14 on one side, the first handle housing 2 has a first locking block 15 that matches the slot 14 on one side, and the second handle housing 3 has a second locking block 16 that matches the slot 14 on one side. The first locking block 15 and the second locking block 16 are respectively inserted into the slot 14 from both sides, and the first locking block 15 and the second locking block 16 are staggered.

[0037] Specifically, the first and second locking blocks are simultaneously embedded into the slots from both sides, further improving the installation stability of the first and second handle housings and interlocking them to form a wrap-around connection structure for the body housing, effectively dispersing stress concentration and improving overall vibration resistance.

[0038] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A hammer drill structure with vibration damping function, characterized in that: It includes a body housing (1), a first handle housing (2) connected to the tail end of the body housing (1), and a second handle housing (3). The first handle housing (2) and the second handle housing (3) are arranged opposite to each other, and the first handle housing (2) and the second handle housing (3) are spliced ​​together to form a handle part. A shock-absorbing pad (4) is provided between the handle part and the body housing (1). The shock-absorbing pad (4) is located on the gripping side of the body housing (1) near the handle part.

2. The electric hammer structure with vibration damping function according to claim 1, characterized in that: The shock-absorbing pad (4) has a protrusion (5) on the side near the handle, and there is a recessed structure (6) between the shock-absorbing pad (4) and the protrusion (5). Both the first handle housing (2) and the second handle housing (3) are provided with a snap-fit ​​structure (7) that matches the recessed structure (6).

3. The electric hammer structure with shock absorption function according to claim 1, characterized in that: The body housing (1) has symmetrical mounting holes (8) on both sides, and the first handle housing (2) has a limiting post (9) that matches the mounting hole (8) on its side. The limiting post (9) is inserted into the mounting hole (8).

4. The electric hammer structure with shock absorption function according to claim 3, characterized in that: The second handle housing (3) is provided with a limiting groove (10) corresponding to the limiting post (9) on its side, and the limiting post (9) and the limiting groove (10) are detachably engaged.

5. The electric hammer structure with shock absorption function according to claim 4, characterized in that: The end of the limiting groove (10) is provided with a guide cone surface (11), and the end of the limiting pile (9) is inserted into the guide cone surface (11).

6. The electric hammer structure with shock absorption function according to claim 1, characterized in that: The body housing (1) has annular grooves (12) on both sides. The first handle housing (2) and the second handle housing (3) are both provided with positioning rings (13) that cooperate with the annular grooves (12). The positioning rings (13) and the annular grooves (12) are in a gap fit. When the shock-absorbing pad (4) is installed, the positioning rings (13) abut against the side of the annular grooves (12).

7. The electric hammer structure with vibration damping function according to claim 1, characterized in that: The body housing (1) has a slot (14) on one side. The first handle housing (2) has a first locking block (15) on one side that matches the slot (14). The second handle housing (3) has a second locking block (16) on one side that matches the slot (14). The first locking block (15) and the second locking block (16) are respectively inserted into the slot (14) from both sides, and the first locking block (15) and the second locking block (16) are staggered.

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