A pneumatic pick for removing rust

Abstract

The utility model discloses a kind of air spade rust removal heads, including sleeve, impact head, needle seat, reset spring and rust removal needle, its sleeve is formed by detachable connection head sleeve and tail sleeve, tail sleeve one end has with integral moulding positioning step from itself.The design is when disassembling replacement rust removal needle, only need to split head sleeve and tail sleeve, without disassembling snap spring or baffle, greatly improve the operational convenience, save maintenance time cost.Meanwhile, reduce the number of parts, reduce procurement and processing assembly cost, enhance market competitiveness.Integrally formed positioning step makes needle seat positioning more stable, improves the stability and sustainability of rust removal work, guarantees rust removal quality.

Description

Technical Field

[0001] This utility model relates to the technical field of rust removal devices, specifically a pneumatic rust removal head. Background Technology

[0002] In the field of metal surface treatment and related fields, air chisels are widely used tools. They play an important role in removing rust and impurities from metal surfaces, effectively improving the quality of metal surfaces and providing a good foundation for subsequent coating, processing and other procedures.

[0003] Currently common pneumatic chisel rust removal heads are used after being connected to a pneumatic chisel. They typically include a sleeve, an impact head, a needle seat, a return spring, and a rust removal needle. In existing technologies, the sleeve is generally a single-piece structure, with the needle seat positioned inside the sleeve by a retaining ring or snap ring. A typical structure can be found in a pneumatic rust remover disclosed in application number CN202310069441.6.

[0004] In practical use, when it is necessary to disassemble and replace the rust removal needle, the retaining ring or retaining ring must first be removed. However, the retaining ring or retaining ring is locked inside the sleeve during installation, making disassembly extremely difficult and consuming a lot of time and labor costs. Moreover, the use of additional components such as retaining rings or retaining rings not only increases the number of parts in the entire air chisel rust removal head but also increases production costs.

[0005] In summary, the existing air chisel rust removal heads have certain structural design defects, and a new structural design is urgently needed to solve the above problems in order to improve the ease of use and economy of air chisel rust removal heads. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides an air chisel rust removal head.

[0007] The technical solution adopted by this utility model is: an air chisel rust removal head, including a sleeve, an impact head, a needle seat, a return spring and a rust removal needle. The sleeve includes a head sleeve and a tail sleeve, which are detachably connected. One end of the tail sleeve has a positioning step integrally formed with the tail sleeve.

[0008] Furthermore, the tail sleeve is provided with a first connection hole, a mounting hole and a second connection hole, each of the second connection holes being provided with internal threads, and the head sleeve being provided with an external thread section that is threadedly connected to the second connection hole.

[0009] Furthermore, the diameter of the first connecting hole is smaller than the diameter of the mounting hole, and the aforementioned positioning step is formed between the first connecting hole and the mounting hole.

[0010] Furthermore, the end of the head sleeve away from the external thread section is provided with a through hole for the rust removal needle to pass through.

[0011] Furthermore, the head sleeve on one side of the through hole has a spring step, and the reset spring is fitted between the spring step and the needle seat.

[0012] Furthermore, it also includes a handle, which comprises a rod and a rubber sleeve fitted on the rod, the rod being threadedly connected to an internal threaded hole on the head sleeve.

[0013] Furthermore, a helical spring is provided inside the first connection hole.

[0014] The beneficial effects of this utility model are:

[0015] 1. Easy Installation and Disassembly: This patented design features a detachable head and tail sleeve, which simplifies the process of replacing the rust-removing needle compared to traditional integral sleeves. Users can easily replace the rust-removing needle simply by separating the head and tail sleeves, eliminating the need to painstakingly remove the retaining rings or clips stuck inside the sleeve. This significantly improves work efficiency, reduces operational difficulty, and saves maintenance time and costs.

[0016] 2. Cost Reduction: By eliminating additional positioning components such as retaining rings or snap rings, the number of parts is reduced. On the one hand, this lowers the cost of procuring these parts; on the other hand, it reduces the number of processing and assembly steps, thereby reducing the overall production cost of the air chisel rust removal head and making it more price-competitive in the market.

[0017] 3. Improved Structural Stability: The positioning step and tail sleeve are integrally molded. Compared to positioning using snap rings or retaining rings, this design provides more stable support and positioning. During the operation of the air chisel rust removal head, the needle seat is more stable and less prone to displacement or shaking, ensuring the stability and continuity of the rust removal work, thereby improving the quality of rust removal.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0021] Figure 3 This is a schematic diagram of a structure using a helical spring.

[0022] Figures 1-3In the middle: 1. Sleeve; 2. Impact head; 3. Needle seat; 4. Return spring; 5. Rust removal needle; 6. Head sleeve; 7. Tail sleeve; 8. Positioning step; 9. Connecting hole one; 10. Mounting hole; 11. Connecting hole two; 12. Internal thread; 13. External thread section; 14. Through hole; 15. Spring step; 16. Handle; 17. Rod; 18. Rubber sleeve; 19. Internal thread hole; 20. Helical spring. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] This utility model provides an air chisel rust removal head.

[0026] In this embodiment, refer to Figures 1-2 The air chisel rust removal head includes a sleeve 1, an impact head 2, a needle seat 3, a return spring 4, and a rust removal needle 5. The sleeve includes a head sleeve 6 and a tail sleeve 7, which are detachably connected. One end of the tail sleeve has a positioning step 8 integrally formed with the tail sleeve.

[0027] In the above technical solution, the sleeve is designed as a detachable head sleeve and tail sleeve, and an integrally formed positioning step is set on the tail sleeve, which makes the replacement of the rust removal needle simple and convenient, without the need to disassemble the complex snap ring or retaining ring, effectively saving maintenance time and labor costs; at the same time, it reduces the number of parts and lowers production costs.

[0028] Specifically, the tail sleeve is provided with a first connection hole 9, a mounting hole 10 and a second connection hole 11. Each second connection hole is provided with an internal thread 12, and the head sleeve is provided with an external thread section 13 that is threadedly connected to the second connection hole.

[0029] In this embodiment, the tail sleeve is provided with a first connecting hole with internal threads, a mounting hole, and a second connecting hole. The connecting hole can be provided with internal threads for threaded connection of the pneumatic shovel (e.g., ...). Figure 2As shown in the figure, the mounting hole is used to accommodate the impact head and the needle seat, while the connecting hole two is threaded to the external thread section on the head sleeve. That is, the head sleeve and the tail sleeve are connected by a thread, which facilitates the assembly and disassembly of the two.

[0030] Specifically, the diameter of the first connecting hole is smaller than the diameter of the mounting hole, and the aforementioned positioning step is formed between the first connecting hole and the mounting hole.

[0031] In this embodiment, a positioning step is formed between the connecting hole and the mounting hole, and the diameter of the connecting hole is smaller than the diameter of the mounting hole. The positioning step is naturally formed by utilizing the diameters of the two holes, resulting in a reasonable structure and optimized overall spatial layout.

[0032] Specifically, the end of the head sleeve away from the outer thread section is provided with a through hole 14 for the rust removal needle to pass through.

[0033] In this embodiment, a through hole is provided at the end of the head sleeve away from the external thread section for the rust removal needle to pass through, providing a reasonable channel for the rust removal needle to work, ensuring that the rust removal needle can extend smoothly and effectively act on the surface to be rusted, and ensuring the normal progress of the rust removal work.

[0034] Specifically, the head sleeve on one side of the through hole has a spring step 15, and the reset spring is fitted between the spring step and the needle seat.

[0035] In this embodiment, a spring step is provided on the head sleeve on one side of the through hole, and a reset spring is fitted between the spring step and the needle seat. The spring step is directly formed without the need for a rust-removing needle sleeve, which further simplifies the overall structure and reduces costs.

[0036] Specifically, it also includes a handle 16, the handle 17 including a rod 17 and a rubber sleeve 18 fitted on the rod 17, the rod being threadedly connected to an internal threaded hole 19 on the head sleeve.

[0037] In this embodiment, a handle with a rod and a rubber sleeve is added. The rod is threadedly connected to the inner threaded hole of the head sleeve. On the one hand, the rubber sleeve can increase the operator's grip comfort and reduce hand fatigue during work; on the other hand, the threaded handle is easy to install and disassemble, and can be easily replaced or adjusted according to actual use needs, thus improving the flexibility of using the air chisel rust removal head.

[0038] Specifically, a helical spring 20 is provided inside the connection hole.

[0039] In addition to the internal thread for connecting the air shovel, a threaded spring can also be installed in the connecting hole to connect with the air shovel. The threaded spring provides an anti-loosening effect, making the connection with the air shovel more stable. Figure 3 As stated above.

[0040] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A pneumatic chisel rust removal head, comprising a sleeve, an impact head, a needle seat, a return spring, and a rust removal needle, characterized in that: The sleeve includes a head sleeve and a tail sleeve, which are detachably connected. One end of the tail sleeve has a positioning step integrally formed with the tail sleeve.

2. The air chisel rust removal head according to claim 1, characterized in that: The tail sleeve is provided with a first connection hole, a mounting hole and a second connection hole. The second connection hole is provided with internal threads. The head sleeve is provided with an external thread section that is threadedly connected to the second connection hole.

3. The air chisel rust removal head according to claim 2, characterized in that: The diameter of the first connecting hole is smaller than the diameter of the mounting hole, and the aforementioned positioning step is formed between the first connecting hole and the mounting hole.

4. The air chisel rust removal head according to claim 2, characterized in that: The end of the head sleeve away from the external thread section is provided with a through hole for the rust removal needle to pass through.

5. The air chisel rust removal head according to claim 4, characterized in that: The head sleeve on one side of the through hole has a spring step, and the reset spring is fitted between the spring step and the needle seat.

6. The air chisel rust removal head according to claim 1, characterized in that: It also includes a handle, which includes a rod and a rubber sleeve fitted on the rod, the rod being threadedly connected to an internal threaded hole on the head sleeve.

7. The air chisel rust removal head according to claim 2, characterized in that: A helical spring is installed inside the connection hole.

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