A buffer frame structure of an electric hammer

Abstract

The utility model discloses a kind of electric hammer buffer framework structures.The utility model, including: front shell, the one end of the outer surface of front shell is movably provided with fixed ring, the other end of the fixed ring is provided with buffer framework structure, the one end of front shell is provided with chuck, the other end of the outer surface of front shell is provided with handheld handle, the other end of front shell is provided with rear shell, the bottom of rear shell is provided with protective storehouse, the other end of rear shell and protective storehouse is provided with U-shaped handle.The utility model is provided with buffer framework structure, when electric hammer is carried out on rigid material and is perforated or broken, buffer framework structure can play buffering effect, reduce the vibration amplitude of electric hammer, avoid operator to appear fatigue, and can prevent operator to appear potential harm, buffer spring is further provided between front shell and rear shell, can further reduce the vibration amplitude of electric hammer, reduce the operation difficulty of electric hammer.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, specifically to a hammer drill buffer frame structure. Background Technology

[0002] Various power tools are often used in engineering construction. An electric hammer is an electric rotary hammer drill with a safety clutch and a pneumatic hammering mechanism. The electric hammer uses the principle of piston movement to compress gas to impact the drill bit. It does not require much hand strength and can drill holes in hard materials such as concrete, floor slabs, bricks, and stones.

[0003] When existing electric hammers are used to drill holes or break hard materials, the forces are mutual. The rebound force and large vibrations of the electric hammer act on the operator, which not only makes the operator prone to fatigue but also causes potential injuries. At the same time, the large vibrations of the electric hammer make the shell of the hammer prone to damage, and the violent vibrations increase the difficulty of operating the electric hammer. Utility Model Content

[0004] The purpose of this invention is to provide a hammer drill buffer frame structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hammer drill buffer frame structure, comprising:

[0006] The front housing has a fixed ring movably disposed at one end of its outer surface, a buffer skeleton structure disposed at the other end of the fixed ring, a clamp disposed at one end of the front housing, a hand handle disposed at the other end of the outer surface of the front housing, a rear housing disposed at the other end of the front housing, a protective compartment disposed at the bottom of the rear housing, and a U-shaped handle disposed at the other end of the rear housing and the protective compartment.

[0007] The buffer skeleton structure further includes a first connecting rod. The top, bottom and both sides of the other end of the fixing ring are provided with the first connecting rod. The other end of the first connecting rod is movably provided with a second connecting rod. One end of the outer surface of the first connecting rod and the other end of the outer surface of the second connecting rod are provided with mounting rings. An elastic element is provided between the mounting rings on the first connecting rod and the second connecting rod.

[0008] By adopting the above technical solution, when the electric hammer is used to drill or break hard materials, the chuck vibrates and squeezes the fixed ring, causing the first connecting rod and the second connecting rod to move back and forth. With the assistance of the elastic element, a buffering effect is achieved, preventing the electric hammer from vibrating violently during operation. This prevents the rebound force and large vibration generated by the electric hammer from acting on the operator, avoiding operator fatigue and preventing potential injuries to the operator.

[0009] Preferably, there is a gap between the front housing and the rear housing, and a buffer spring is provided inside the gap between the front housing and the rear housing.

[0010] By adopting the above technical solution, a buffer spring is provided between the front shell and the rear shell. When the electric hammer vibrates, the buffer spring can prevent the shell of the electric hammer from being damaged, reduce the vibration amplitude of the electric hammer, and reduce the difficulty of operating the electric hammer.

[0011] Preferably, the front housing has an impact structure inside, the protective chamber has a drive structure inside, the rear housing has a gear transmission structure inside, and the U-shaped handle has a control switch inside.

[0012] By adopting the above technical solution, the front shell, chuck, hand handle, rear shell, protective chamber and U-shaped handle constitute the electric hammer shell, while the impact structure, drive structure, gear transmission structure and control switch are set inside the electric hammer shell.

[0013] Preferably, the other end of the second connecting rod is connected to the front housing, and one end of the second connecting rod is provided with a movable hole, through which the first connecting rod is slidably connected to the second connecting rod.

[0014] By adopting the above technical solution, when the clamp squeezes the fixing ring, the fixing ring pushes the first connecting rod, causing the first connecting rod to move inside the second connecting rod due to the movable hole.

[0015] Preferably, a plurality of elastic elements are provided between the mounting rings on the first connecting rod and the second connecting rod. The elastic elements are composed of buffer elements and springs, with the springs on the elastic elements sleeved on the outer surface of the buffer elements.

[0016] By adopting the above technical solution, when the clamp squeezes the fixing ring, the first connecting rod and the second connecting rod, with the assistance of the elastic element, reduce the vibration amplitude of the electric hammer during their movement.

[0017] Preferably, the other end of the outer surface of the front housing is provided with a limiting ring groove and a recess, and one end of the inner surface of the rear housing is provided with a limiting ring and a mounting groove. The front housing and the rear housing are engaged by the limiting ring groove and the limiting ring, and the front housing and the rear housing are provided with a buffer spring by the recess and the mounting groove.

[0018] By adopting the above technical solution, the front housing and the rear housing are stably installed on the front housing through the cooperation between the limiting ring groove and the limiting ring. Moreover, the limiting ring groove and the limiting ring can also play a limiting role. At the same time, a buffer spring is set between the front housing and the rear housing, which can further reduce the vibration amplitude of the electric hammer and reduce the difficulty of operating the electric hammer.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the electric hammer buffer frame structure is provided with a buffer frame structure, which can play a buffering role when the electric hammer is drilling or breaking hard materials, reducing the vibration amplitude of the electric hammer, avoiding operator fatigue, and preventing potential injury to the operator. In addition, a buffer spring is provided between the front shell and the rear shell, which can further reduce the vibration amplitude of the electric hammer and reduce the difficulty of operating the electric hammer. Attached Figure Description

[0020] Figure 1 This is a front view of the structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0022] Figure 3 This is a front sectional view of the structure of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0024] In the diagram: 1. Front housing; 2. Fixing ring; 3. Clamp; 4. First connecting rod; 5. Second connecting rod; 6. Mounting ring; 7. Elastic element; 8. Hand handle; 9. Rear housing; 10. Buffer spring; 11. Protective chamber; 12. U-shaped handle; 13. Impact structure; 14. Drive structure; 15. Gear transmission structure; 16. Control switch. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4This utility model provides an embodiment of an electric hammer buffer frame structure, comprising: a front housing 1, a fixing ring 2 movably disposed at one end of the outer surface of the front housing 1, a buffer frame structure disposed at the other end of the fixing ring 2, a clamp 3 disposed at one end of the front housing 1, a hand handle 8 disposed at the other end of the outer surface of the front housing 1, a rear housing 9 disposed at the other end of the front housing 1, a protective chamber 11 disposed at the bottom of the rear housing 9, and a U-shaped handle 12 disposed at the other end of the rear housing 9 and the protective chamber 11; the buffer frame structure further comprising a first connecting rod 4, wherein the first connecting rod 4 is disposed at the top, bottom and both sides of the other end of the fixing ring 2, and the first connecting rod 4... The other end is movably provided with a second connecting rod 5. One end of the outer surface of the first connecting rod 4 and the other end of the outer surface of the second connecting rod 5 are provided with mounting rings 6. An elastic element 7 is provided between the mounting rings 6 on the first connecting rod 4 and the second connecting rod 5. When the electric hammer performs drilling or crushing operations on hard materials, the chuck 3 vibrates and squeezes the fixing ring 2, causing the first connecting rod 4 and the second connecting rod 5 to move back and forth. With the assistance of the elastic element 7, a buffering effect is achieved, preventing the electric hammer from vibrating violently during operation. This prevents the rebound force and large vibration generated by the electric hammer from acting on the operator, avoiding operator fatigue and preventing potential injuries to the operator.

[0027] In this embodiment, there is a gap between the front housing 1 and the rear housing 9. A buffer spring 10 is installed inside the gap between the front housing 1 and the rear housing 9. The buffer spring 10 is installed between the front housing 1 and the rear housing 9. When the electric hammer vibrates, the buffer spring 10 can buffer the damage to the electric hammer housing, reduce the vibration amplitude of the electric hammer, and reduce the difficulty of operating the electric hammer.

[0028] In this embodiment, the front housing 1 is provided with an impact structure 13, the protective chamber 11 is provided with a drive structure 14, the rear housing 9 is provided with a gear transmission structure 15, and the U-shaped handle 12 is provided with a control switch 16. The front housing 1, the chuck 3, the hand handle 8, the rear housing 9, the protective chamber 11, and the U-shaped handle 12 constitute the electric hammer housing, while the impact structure 13, the drive structure 14, the gear transmission structure 15, and the control switch 16 are located inside the electric hammer housing.

[0029] In this embodiment, the other end of the second connecting rod 5 is connected to the front housing 1. One end of the second connecting rod 5 is provided with a movable hole. The first connecting rod 4 is slidably connected to the second connecting rod 5 through the movable hole. When the clamp 3 squeezes the fixing ring 2, the fixing ring 2 pushes the first connecting rod 4, causing the first connecting rod 4 to move inside the second connecting rod 5 due to the movable hole.

[0030] In this embodiment, multiple elastic elements 7 are provided between the first connecting rod 4 and the second connecting rod 5 and the mounting ring 6. The elastic elements 7 are composed of buffers and springs. The springs on the elastic elements 7 are sleeved on the outer surface of the buffers. When the clamp 3 squeezes the fixing ring 2, the first connecting rod 4 and the second connecting rod 5 move, and the elastic elements 7 help to reduce the vibration amplitude of the electric hammer.

[0031] In this embodiment, a limiting ring groove and a recess are provided at the other end of the outer surface of the front housing 1, and a limiting ring and a mounting groove are provided at one end of the inner surface of the rear housing 9. The front housing 1 and the rear housing 9 are engaged by the limiting ring groove and the limiting ring. A buffer spring 10 is provided between the front housing 1 and the rear housing 9 through the recess and the mounting groove. The rear housing 9 can be stably installed on the front housing 1 through the cooperation between the limiting ring groove and the limiting ring. Moreover, the limiting ring groove and the limiting ring can also play a limiting role. At the same time, the buffer spring 10 is provided between the front housing 1 and the rear housing 9, which can further reduce the vibration amplitude of the electric hammer and reduce the difficulty of operating the electric hammer.

[0032] Working principle: When the electric hammer is used to drill or break hard materials, the chuck 3 vibrates and squeezes the fixed ring 2, causing the first connecting rod 4 and the second connecting rod 5 to reciprocate. With the assistance of the elastic element 7, a buffering effect is achieved, preventing the electric hammer from vibrating violently during operation. This prevents the rebound force and large vibration generated by the electric hammer from acting on the operator, avoiding operator fatigue and potential injury. At the same time, a buffer spring 10 is set between the front housing 1 and the rear housing 9, which can further reduce the vibration amplitude of the electric hammer and reduce the difficulty of operating the electric hammer.

[0033] For those skilled in the art, this invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or scope of this invention. Therefore, the embodiments of this invention are exemplary and not restrictive. The scope of this invention is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric hammer buffer cage structure, characterized by, include: A front housing (1) has a fixed ring (2) movably disposed at one end of its outer surface, and a buffer skeleton structure disposed at the other end of the fixed ring (2). A clamp (3) is disposed at one end of the front housing (1), and a hand handle (8) is disposed at the other end of its outer surface. A rear housing (9) is disposed at the other end of the front housing (1), and a protective chamber (11) is disposed at the bottom of the rear housing (9). A U-shaped handle (12) is disposed at the other end of the rear housing (9) and the protective chamber (11). The buffer skeleton structure further includes a first connecting rod (4). The top, bottom and both sides of the other end of the fixing ring (2) are provided with the first connecting rod (4). The other end of the first connecting rod (4) is movably provided with a second connecting rod (5). One end of the outer surface of the first connecting rod (4) and the other end of the outer surface of the second connecting rod (5) are provided with mounting rings (6). An elastic element (7) is provided between the mounting rings (6) on the first connecting rod (4) and the second connecting rod (5).

2. The cushioning framework structure of an electric hammer according to claim 1, wherein: There is a gap between the front housing (1) and the rear housing (9), and a buffer spring (10) is provided inside the gap between the front housing (1) and the rear housing (9).

3. The cushioning framework structure of an electric hammer according to claim 1, wherein: The front housing (1) is provided with an impact structure (13), the protective chamber (11) is provided with a drive structure (14), the rear housing (9) is provided with a gear transmission structure (15), and the U-shaped handle (12) is provided with a control switch (16).

4. The cushioning framework structure of an electric hammer according to claim 1, wherein: The other end of the second connecting rod (5) is connected to the front housing (1). One end of the second connecting rod (5) is provided with a movable hole. The first connecting rod (4) is slidably connected to the second connecting rod (5) through the movable hole.

5. The cushioning framework structure of an electric hammer according to claim 1, wherein: Multiple elastic elements (7) are provided between the first connecting rod (4) and the second connecting rod (5) and the mounting ring (6). The elastic element (7) is composed of a buffer and a spring, and the spring is sleeved on the outer surface of the buffer.

6. The cushioning framework structure of an electric hammer according to claim 2, wherein: The other end of the outer surface of the front housing (1) is provided with a limiting ring groove and a groove, and one end of the inner surface of the rear housing (9) is provided with a limiting ring and a mounting groove. The front housing (1) and the rear housing (9) are engaged by the limiting ring groove and the limiting ring. The front housing (1) and the rear housing (9) are provided with a buffer spring (10) by the groove and the mounting groove.

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