Auxiliary frame for shock absorption of lithium battery brushless electric hammer

Abstract

The utility model relates to the technical field of shock absorption of electric hammers, in particular to an auxiliary frame for shock absorption of a lithium battery brushless electric hammer, which comprises a movable shaft, a first protective cover is arranged on one side of the movable shaft, a second protective cover is arranged on the other side of the movable shaft, and the first protective cover and the second protective cover are identical in structure. Butt joint seats are fixedly connected to the four corners of the bottom of the movable shaft and the four corners of the bottom of the first protective cover, limiting rubber strips are arranged on the inner walls of one ends of the first protective cover and the second protective cover, and a buffer seat is arranged at one end of the movable shaft. Through the arrangement of the movable shaft, the first protective cover, the second protective cover, the butt joint seat, the threaded pipe sleeve, the connecting threaded rod, the second buffer spring, the buffer inner plate, the bottom connecting seat and the clamping arc groove, the equipment can be subjected to safer and more stable damping protection operation; a worker firstly rotates and opens the first protective cover and the second protective cover around a movable shaft at the top.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hammer shock absorption, in particular to an auxiliary frame for shock absorption of a lithium-powered brushless electric hammer. Background Art

[0002] An electric hammer is an electric rotary hammer drill with a safety clutch and a pneumatic hammer mechanism. The electric hammer uses the principle of piston movement to compress the gas to impact the drill bit. It does not require much hand strength and can drill holes in hard materials such as concrete, bricks, and stones. The electric hammer is more efficient in drilling holes in the above materials, but it cannot drill holes in metals.

[0003] For example, the patent document with the announcement number CN 213616503 U discloses a handheld brushless electric hammer, which has an electric hammer body, a connecting device installed on the electric hammer body, a battery pack detachably installed on the connecting device, the connecting device includes a shell, a plug-in assembly, a first socket and a second socket are installed in the shell, the first socket and the second socket are arranged on both sides of the plug-in assembly, the first socket is electrically connected to the driving device in the body, a socket is provided at a position corresponding to the second socket of the shell, the bottom and the groove walls of the socket are both provided with strip-shaped shock-absorbing blocks, the outer periphery of the plug-in assembly is provided with a shock-absorbing ring, and the battery pack is inserted into the socket. In the utility model, the battery pack of the electric hammer is connected to the electric hammer body through the connecting device, the split structure buffers vibration, and a plurality of shock-absorbing blocks and shock-absorbing rings are arranged on the connecting device to reduce the vibration of the battery pack when the electric hammer is working, and the service life of the battery pack is greatly improved.

[0004] However, in actual use, this structure can only be operated directly by hand, but the entire lithium-ion brushless electric hammer often has strong vibration force in its working state. If effective buffering and shock absorption operation is not performed, the operator's hands will easily be injured by the huge vibration force. At the same time, the equipment cannot further strengthen the overall control of the equipment during the maximum power output process, and cannot meet daily use needs. Therefore, it is urgent to design an auxiliary frame for shock absorption of lithium-ion brushless electric hammer to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an auxiliary frame for shock absorption of a lithium-ion brushless electric hammer, so as to solve the problem that the existing structure proposed in the above background technology can only be directly hand-held in actual use, but there is often a strong vibration force in the working state of the entire lithium-ion brushless electric hammer. If effective buffering and shock absorption operations are not performed, the operator's hands are easily injured by the great vibration force. At the same time, the equipment cannot further strengthen the overall control of the equipment during maximum power output, and cannot meet the daily use needs.

[0006] To achieve the above object, the utility model provides the following technical solution: an auxiliary frame for shock absorption of a lithium brushless electric hammer, comprising a movable shaft, a first protective cover is arranged on one side of the movable shaft, a second protective cover is arranged on the other side of the movable shaft, the first protective cover and the second protective cover have the same structure, and the four corners of the bottom of the movable shaft and the first protective cover are fixedly connected with docking seats;

[0007] A limiting rubber strip and a buffer seat, a limiting rubber strip is arranged on the inner wall of one end of the first protective cover and the second protective cover, a buffer seat is arranged at one end of the movable shaft, an electric push rod is arranged at one end of the buffer seat, and an arc-shaped top seat is fixedly connected to one end of the electric push rod.

[0008] Preferably, a damping rubber ring is arranged on the side of the other end of the electric push rod, and a first buffer spring is arranged on the other end of the electric push rod.

[0009] Preferably, the inner wall of the limiting rubber strip is provided with a protective rubber cover, and the inner center of the protective rubber cover is provided with a limiting ring seat.

[0010] Preferably, a threaded sleeve is provided inside the docking seat, and a connecting threaded rod is movably connected inside the threaded sleeve.

[0011] Preferably, the movable shaft and the inner wall of the first protective cover are provided with a second buffer spring, and the movable shaft and the inner wall of the first protective cover are movably connected with a buffer inner plate through the second buffer spring.

[0012] Preferably, the bottom ends of the first protective cover and the second protective cover are fixedly connected with a bottom connection seat, and the inner wall of the bottom connection seat is provided with a clamping arc groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The auxiliary frame for shock absorption of a lithium-ion brushless electric hammer can make the equipment perform a safer and more stable shock absorption protection operation by means of the arranged movable shaft, the first protective cover, the second protective cover, the docking seat, the threaded sleeve, the connecting threaded rod, the second buffer spring, the buffer inner plate, the bottom docking seat and the clamping arc groove. In actual use, the staff first rotates and opens the first protective cover and the second protective cover around the movable shaft at the top, and then puts the lithium-ion brushless electric hammer to be used into the first protective cover and the second protective cover, and then docks and closes the first protective cover and the second protective cover, so that the clamping arc groove of the bottom docking seat at the bottom of the first protective cover and the second protective cover is formed. The groove is connected to the two handrails of the lithium-ion brushless electric hammer, and then the connecting threaded rods inside the threaded sleeves at the four corners of the bottom of the first protective cover and the second protective cover are tightened to quickly complete the locking and fixing operation of the lithium-ion brushless electric hammer and the first protective cover and the second protective cover. At this time, the lithium-ion brushless electric hammer can be adaptably connected to the internal buffer inner plate inside the first protective cover and the second protective cover. When the lithium-ion brushless electric hammer is operating normally, the vibration force it generates can be transmitted to the buffer inner plate, and then the buffer inner plate performs a rapid buffer protection operation through the second buffer spring, thereby ensuring a safer and more reliable buffering and shock-absorbing operation of the lithium-ion brushless electric hammer movement, reflecting the practicality of the equipment design.

[0015] The auxiliary frame for shock absorption of the lithium-ion brushless electric hammer further improves the overall use effect of the equipment by means of the arranged movable shaft, limiting rubber strip, buffer seat, electric push rod, arc-shaped top seat, damping rubber ring, first buffer spring, protective rubber cover and limiting ring seat. In daily use, when the lithium-ion brushless electric hammer needs to operate at high power, the electric push rod at one end of the buffer seat can be started to drive the arc-shaped top seat at one end to extend, and then the arc-shaped top seat is connected to the shoulder of the operator, thereby increasing the fulcrum of the lithium-ion brushless electric hammer, and the other end of the electric push rod can perform shock absorption protection operation inside the buffer seat through the damping rubber ring and the first buffer spring, thereby achieving better control operation of the lithium-ion brushless electric hammer. At the same time, when the lithium-ion brushless electric hammer is installed with the first protective cover and the second protective cover, one end of the electric push rod can be plugged into the limiting ring seat of the protective rubber cover to achieve stable limiting protection operation inside the limiting rubber strip, thereby reflecting the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 It is an overall schematic diagram of the structure of the movable shaft, the first protective cover and the second protective cover of the utility model;

[0018] Figure 3 It is an overall schematic diagram of the buffer seat structure of the utility model;

[0019] Figure 4 For this utility model Figure 1 A magnified schematic diagram of the structure in the middle.

[0020] In the figure: 1. movable shaft; 2. first protective cover; 3. second protective cover; 4. docking seat; 5. limiting rubber strip; 6. buffer seat; 7. electric push rod; 8. arc top seat; 9. damping rubber ring; 10. first buffer spring; 11. protective rubber cover; 12. limiting ring seat; 13. threaded pipe sleeve; 14. connecting threaded rod; 15. second buffer spring; 16. buffer inner plate; 17. bottom seat; 18. clamping arc groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , an embodiment provided by the utility model:

[0023] An auxiliary frame for shock absorption of a lithium brushless electric hammer comprises a movable shaft 1, a first protective cover 2 is arranged on one side of the movable shaft 1, a second protective cover 3 is arranged on the other side of the movable shaft 1, the first protective cover 2 and the second protective cover 3 have the same structure, the movable shaft 1 and the four corners of the bottom of the first protective cover 2 are fixedly connected with a docking seat 4, a threaded sleeve 13 is arranged inside the docking seat 4, a connecting threaded rod 14 is movably connected inside the threaded sleeve 13, a second buffer spring 15 is arranged on the inner wall of the movable shaft 1 and the first protective cover 2, a buffer inner plate 16 is movably connected to the inner wall of the movable shaft 1 and the first protective cover 2 through the second buffer spring 15, and the first protective cover 2 and The bottom end of the second protective cover 3 is fixedly connected with a bottom connecting seat 17, and the inner wall of the bottom connecting seat 17 is provided with a clamping arc groove 18. The lithium-electric brushless electric hammer to be used is placed into the first protective cover 2 and the second protective cover 3, and then the first protective cover 2 and the second protective cover 3 are docked and closed, so that the clamping arc groove 18 of the bottom connecting seat 17 at the bottom of the first protective cover 2 and the second protective cover 3 is docked with the two handrails of the lithium-electric brushless electric hammer, and then the connecting threaded rod 14 inside the threaded pipe sleeves 13 at the four corners of the bottom of the first protective cover 2 and the second protective cover 3 is tightened to quickly complete the locking and fixing operation of the lithium-electric brushless electric hammer and the first protective cover 2 and the second protective cover 3.

[0024] A limiting rubber strip 5 and a buffer seat 6, a limiting rubber strip 5 is arranged on the inner wall of one end of the first protective cover 2 and the second protective cover 3, a buffer seat 6 is arranged at one end of the movable shaft 1, an electric push rod 7 is arranged at one end of the buffer seat 6, one end of the electric push rod 7 is fixedly connected with an arc-shaped top seat 8, a damping rubber ring 9 is arranged on the side of the other end of the electric push rod 7, and a first buffer spring 10 is arranged at the other end of the electric push rod 7. A protective rubber cover 11 is arranged on the inner wall of the limiting rubber strip 5, and a limiting ring seat 12 is arranged at the inner center of the protective rubber cover 11. Start the electric push rod 7 at one end of the buffer seat 6, so that it drives the arc-shaped top seat 8 at one end to extend, and then the arc-shaped top seat 8 is connected to the shoulder of the operator, so as to increase the fulcrum of the lithium brushless electric hammer, and the other end of the electric push rod 7 can perform shock-absorbing protection operation inside the buffer seat 6 through the damping rubber ring 9 and the first buffer spring 10.

[0025] Working principle: When in use, the user first rotates and opens the first protective cover 2 and the second protective cover 3 around the movable shaft 1 at the top, and then puts the lithium-electric brushless electric hammer to be used into the first protective cover 2 and the second protective cover 3, and then docks and closes the first protective cover 2 and the second protective cover 3, so that the arc groove 18 of the bottom connecting seat 17 at the bottom of the first protective cover 2 and the second protective cover 3 is docked with the two handrails of the lithium-electric brushless electric hammer, and then tightens the connecting threaded rod 14 inside the four-corner threaded sleeve 13 at the bottom of the first protective cover 2 and the second protective cover 3, and quickly completes the locking and fixing operation of the lithium-electric brushless electric hammer and the first protective cover 2 and the second protective cover 3. At this time, the lithium-electric brushless electric hammer can be adaptively connected to the internal buffer inner plate 16 inside the first protective cover 2 and the second protective cover 3. When the lithium-electric brushless electric hammer is operating normally, the vibration force generated by it can be transmitted to the buffer inner plate 16, and then the buffer inner plate 16 is buffered. The inner plate 16 performs a rapid buffering protection operation through the second buffer spring 15, thereby ensuring a safer and more reliable buffering and shock-absorbing operation of the lithium-ion brushless electric hammer movement. In daily use, when the lithium-ion brushless electric hammer needs to operate at high power, the electric push rod 7 at one end of the buffer seat 6 can be started to drive the arc-shaped top seat 8 at one end to extend, and then the arc-shaped top seat 8 is connected to the operator's shoulder, thereby increasing the fulcrum of the lithium-ion brushless electric hammer, and the other end of the electric push rod 7 can perform a shock-absorbing protection operation inside the buffer seat 6 through the damping rubber ring 9 and the first buffer spring 10, thereby achieving better control of the lithium-ion brushless electric hammer. At the same time, when the lithium-ion brushless electric hammer is installed with the first protective cover 2 and the second protective cover 3, one end of the lithium-ion brushless electric hammer can be plugged into the limiting ring seat 12 of the protective rubber cover 11 to achieve a stable limiting protection operation inside the limiting rubber strip 5. The above is the entire working principle of the present utility model.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An auxiliary frame for shock absorption of a lithium-ion brushless electric hammer, comprising a movable shaft (1), characterized in that: A first protective cover (2) is provided on one side of the movable shaft (1), and a second protective cover (3) is provided on the other side of the movable shaft (1); the first protective cover (2) and the second protective cover (3) have the same structure; and the four corners of the bottom of the movable shaft (1) and the first protective cover (2) are fixedly connected to docking seats (4); A limiting rubber strip (5) and a buffer seat (6), wherein the inner wall of one end of the first protective cover (2) and the second protective cover (3) is provided with a limiting rubber strip (5), one end of the movable shaft (1) is provided with a buffer seat (6), one end of the buffer seat (6) is provided with an electric push rod (7), and one end of the electric push rod (7) is fixedly connected to an arc-shaped top seat (8).

2. The auxiliary frame for shock absorption of a lithium-powered brushless electric hammer according to claim 1, characterized in that: A damping rubber ring (9) is arranged on the side surface of the other end of the electric push rod (7), and a first buffer spring (10) is arranged on the other end of the electric push rod (7).

3. The auxiliary frame for shock absorption of a lithium-powered brushless electric hammer according to claim 1, characterized in that: The inner wall of the limiting rubber strip (5) is provided with a protective rubber cover (11), and the inner center of the protective rubber cover (11) is provided with a limiting ring seat (12).

4. The auxiliary frame for shock absorption of a lithium-powered brushless electric hammer according to claim 1, characterized in that: A threaded pipe sleeve (13) is provided inside the docking seat (4), and a connecting threaded rod (14) is movably connected inside the threaded pipe sleeve (13).

5. The auxiliary frame for shock absorption of a lithium-electric brushless electric hammer according to claim 1, characterized in that: The movable shaft (1) and the inner wall of the first protective cover (2) are provided with a second buffer spring (15), and the movable shaft (1) and the inner wall of the first protective cover (2) are movably connected to a buffer inner plate (16) via the second buffer spring (15).

6. The auxiliary frame for shock absorption of a lithium-powered brushless electric hammer according to claim 1, characterized in that: The bottom ends of the first protective cover (2) and the second protective cover (3) are fixedly connected to a bottom connection seat (17), and the inner wall of the bottom connection seat (17) is provided with a clamping arc groove (18).

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