Excavator breaking hammer drill rod protection device
By designing a protective cover consisting of a transparent rubber sheet and a metal frame to be placed over the chisel rod, the problems of stone crushing injuries and dust pollution during excavator crushing operations were solved, achieving safe construction and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2026-03-31
AI Technical Summary
During the renovation of pipelines in old residential areas, stones or debris flying from excavators during crushing operations can easily injure pedestrians, and the dust pollution is serious, failing to effectively protect construction workers and the environment.
Design a protective device for the chisel rod of an excavator breaker hammer, including a protective cover made of a transparent rubber plate and a metal frame. The cover is fitted onto the chisel rod with the opening facing downwards and is fixed by a threaded sleeve and a spring. The protective cover is transparent and elastic, which can block flying debris and reduce dust leakage.
It effectively prevents flying gravel from injuring pedestrians, reduces dust pollution, ensures construction safety and improves environmental quality, and is easy to use and low in cost.
Smart Images

Figure CN224063546U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of excavator breaker hammer chisel protection device, specifically an excavator breaker hammer chisel protection device. Background Technology
[0002] During the renovation of pipelines in old residential areas, existing roads need to be demolished before new pipelines can be laid. Because it is a renovation of an old residential area, it is not possible to completely block the passage of existing people in the community during the renovation process, and it is impossible to achieve complete diversion. When the excavator is breaking up the road, the stones or debris flying out can easily hit pedestrians and construction workers, causing injury. At the same time, the dust generated during the breaking up operation pollutes the surrounding environment and also makes pedestrians uncomfortable. Utility Model Content
[0003] The purpose of this invention is to provide a protective device for the chisel rod of an excavator breaker hammer, in order to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0005] This utility model discloses a protective device for the chisel rod of an excavator breaker, comprising a chisel rod. The chisel rod is characterized by having a protective cover at its lower part. The protective cover is a square cone-shaped cover with its opening facing downwards. The protective cover includes a square frame at the bottom, a cover plate in the middle, and a clamping tube at the top. The clamping tube passes through the chisel rod and is tightened by a threaded sleeve. The cover plate is a transparent rubber plate.
[0006] As an improvement, the bottom of the clamping tube is provided with a ring plate, and the upper part of the ring plate is provided with a spring, which surrounds the lower part of the clamping tube and elastically engages with the threaded sleeve.
[0007] As an improvement, the frame is a square frame with chamfered corners, and the cover plates on the four main surfaces of the protective cover are transparent rubber sheets with wire mesh on the chamfered surfaces.
[0008] As an improvement, the frame is a metal frame.
[0009] The advantages of this invention compared to existing technologies are as follows: The protective cover is placed over the chisel with its opening facing downwards, the lower end of the chisel slightly protruding. Then, the threaded sleeve is rotated upwards to tighten the chisel. A spring, under tension, pushes the threaded sleeve upwards to prevent loosening. During crushing operations, the chisel vibrates up and down. Because the cover is made of transparent, elastic rubber, the frame may frequently touch the ground, causing the protective cover to contract intermittently. The transparent cover does not obstruct the driver's view but serves as a protective shield, preventing flying debris and dust while significantly reducing dust escape, thus avoiding injury or impact to nearby pedestrians. The wire mesh also allows for ventilation and heat dissipation.
[0010] This excavator breaker's chisel rod protection device acts as a protective cover, preventing stones or debris from flying out and significantly reducing dust emissions, thus avoiding injury or impact on nearby pedestrians. The wire mesh allows for ventilation and heat dissipation, and it is easy to use and low in cost. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings listed below are only some structural schematic diagrams of this utility model, and not all of them.
[0012] Figure 1 This is a schematic diagram of the structure of a protective device for the chisel rod of an excavator breaker hammer according to this utility model.
[0013] Figure 2 This is a cross-sectional view of a protective device for the chisel rod of an excavator breaker according to this utility model.
[0014] Figure 3 This is a top view of a protective device for the chisel rod of an excavator breaker according to this utility model.
[0015] Figure label:
[0016] 1. Drill rod; 2. Protective cover; 21. Square frame; 22. Cover plate; 23. Hoop tube; 24. Threaded sleeve; 25. Spring; 26. Ring plate; 27. Wire mesh. Detailed Implementation
[0017] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] In the description of the embodiments of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. 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, they should not be construed as limitations on this utility model.
[0019] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance. The use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be perfectly horizontal, but can be slightly tilted.
[0020] In the description of the embodiments of this utility model, the terms "multiple" or "several" refer to at least two.
[0021] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] This embodiment is combined with the appendix Figures 1 to 3 This paper provides a detailed description of a protective device for the chisel rod of an excavator breaker.
[0023] This embodiment discloses a protective device for the chisel rod of an excavator breaker, comprising a chisel rod 1. The chisel rod 1 is characterized by a protective cover 2 at its lower part. The protective cover 2 is a square cone-shaped cover with its opening facing downwards. The protective cover 2 includes a square frame 21 at the bottom, a cover plate 22 in the middle, and a clamping tube 23 at the top. The clamping tube 23 passes through the chisel rod 1 and is clamped by a threaded sleeve 24. The cover plate 22 is a transparent rubber sheet.
[0024] The bottom of the clamping tube 23 is provided with a ring plate 26, and the upper part of the ring plate 26 is provided with a spring 25. The spring 25 surrounds the lower part of the clamping tube 23 and elastically engages with the threaded sleeve 24.
[0025] The frame 21 is a square frame with chamfered corners. The cover plates 22 on the four main surfaces of the protective cover 2 are transparent rubber sheets, and the chamfered surfaces are wire mesh 27. The width of the chamfered surfaces is less than one-quarter of the width of the main surfaces.
[0026] The frame 21 is a metal frame.
[0027] In practice, the protective cover 2 is placed with its opening facing downwards onto the drill rod 1, with the lower end of the drill rod 1 slightly protruding. Then, the threaded sleeve 24 is rotated upwards to tighten the drill rod 1. Under tension, the spring 25 pushes the threaded sleeve 24 upwards to prevent it from loosening. During the crushing operation, the drill rod 1 vibrates up and down. Because the cover plate 22 is a transparent rubber plate with elasticity, the frame 21 may frequently touch the ground, causing the protective cover 2 to contract intermittently. The protective cover 2 is transparent and does not affect the driver's view, but it can serve as a protective cover, blocking the flying of crushed stone or debris while significantly reducing dust escape, preventing injury or impact to nearby pedestrians. The wire mesh 27 provides ventilation and heat dissipation.
[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the actual scope of protection is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope of the claims.
Claims
1. A break hammer boom protection device for an excavator, comprising a boom (1), characterized in that, The drill rod (1) is provided with a protective cover (2) at the lower part, the protective cover (2) is square conical bucket shape, the mouth is downward, the protective cover (2) includes square frame (21) at the bottom, cover plate (22) at the middle, and tight hoop pipe (23) at the top, the tight hoop pipe (23) is sleeved on the drill rod (1) and is tightly hooped through the threaded sleeve (24), the cover plate (22) is transparent rubber plate; The bottom of the tight hoop pipe (23) is provided with ring plate (26), the upper part of the ring plate (26) is provided with spring (25), the spring (25) surrounds the lower part of the tight hoop pipe (23) and elastically cooperates with the threaded sleeve (24); The square frame (21) is square frame, the four corners of the square frame are chamfered, the cover plate (22) of the four main surfaces of the protective cover (2) is transparent rubber plate, and the chamfered surface is wire net (27).
2. A breakaway boom guard for a break hammer of an excavating machine according to claim 1, wherein The square frame (21) is metal frame.