An impact tool having a split gun body cover

Abstract

The utility model discloses an impact tool with split type gun body cover, including body assembly and transmission shaft, its characterized in that: still include front gun body cover and rear gun body cover, the front gun body cover is connected with rear gun body cover through detachable mode and is formed together and is accommodated cavity, transmission shaft rotatablely bears in the accommodating cavity, the front gun body cover is equipped with oil containing bush and sealing washer, rear gun body cover is connected with body assembly, through adopting detachable connection design of front gun body cover and rear gun body cover to make user can replace transmission shaft of different specifications fast, need not to disassemble integral structure or professional maintenance assistance, and the cooperation of sealing washer and oil containing bush has effectively enhanced the sealing effect and transmission stability, and then has improved operation convenience and work efficiency significantly, has prolonged tool life, and has reduced maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of power tool technology, and more specifically, to an impact tool with a split gun body cover. Background Technology

[0002] Impact tools, such as impact wrenches, are widely used in automotive repair, construction, and other fields. They store energy through an internal rotating mass block and release it instantaneously to achieve high torque output to fasteners. These tools typically include key components such as a drive shaft, impact assembly, and body assembly. Traditional impact tools often use a one-piece cap structure, with the drive shaft encapsulated inside. When the drive shaft wears or is damaged due to prolonged high-load use, the entire tool often needs to be sent back to the manufacturer or a professional repair shop for disassembly and replacement. This not only results in long repair cycles and high costs but also seriously affects the user's work efficiency.

[0003] While common impact tools are constantly improving in terms of output torque and speed, their drive shaft interfaces are still limited by standard sizes. Users often need to purchase tools with multiple drive shaft sizes to accommodate different types of sockets. In addition, the traditional structure has a one-piece chamber design, making it difficult for ordinary users to replace the drive shaft themselves. This reduces the applicability of the tool and makes it inconvenient to use, failing to meet the needs of various work scenarios.

[0004] Therefore, it is necessary to improve the structure of impact tools and provide a split gun body cover structure that allows users to quickly replace drive shafts of different sizes, so as to enhance the versatility and ease of maintenance of the tools, extend the service life of the tools, and reduce the cost of use. Summary of the Invention

[0005] In view of the above-mentioned technical problems in related technologies, the present invention proposes an impact tool with a split gun body cover, which can overcome the above-mentioned shortcomings of the prior art.

[0006] To achieve the above-mentioned technical objectives, the technical solution of the present invention is implemented as follows: An impact tool with a split gun cover; The impact tool with a split gun body cover includes a body assembly and a drive shaft. It is characterized in that: it also includes a front gun body cover and a rear gun body cover, which are detachably connected and together form a receiving cavity, and the drive shaft is rotatably supported in the receiving cavity; the front gun body cover is provided with an oil-impregnated bushing and a sealing ring, and the rear gun body cover is connected to the body assembly.

[0007] Furthermore, the front gun cover and the rear gun cover are connected and fixed by multiple screws, and the rear gun cover is provided with screw holes that cooperate with the screws.

[0008] Furthermore, the number of screws is four, and they are evenly distributed circumferentially.

[0009] Furthermore, the inner peripheral wall of the front gun cover is provided with a circumferential groove, and the sealing ring is embedded in the circumferential groove.

[0010] Furthermore, the outer periphery of the rear gun cover is provided with a protruding annular groove, and the body assembly has a locking structure that is adapted to the protruding annular groove.

[0011] Furthermore, the drive shaft has an interchangeable structure, and the drive side size of its output end includes any one of 1 / 4 inch, 3 / 8 inch, 1 / 2 inch, 3 / 4 inch, 1 inch, 1½ inch, and 2½ inch.

[0012] Furthermore, it also includes a striking assembly disposed within the rear gun body cover, the striking assembly comprising at least one hammer block, the hammer block being drivenly connected to the drive shaft.

[0013] Furthermore, it also includes a drive mechanism, which is a pneumatic motor or an electric motor powered by a battery or external power source, for providing rotational power to the drive shaft.

[0014] Furthermore, the sealing ring is fitted onto the annular portion of the front gun cover facing the rear gun cover, and the sealing ring is used to form a seal and position when the front gun cover and the rear gun cover are engaged.

[0015] Furthermore, the impact tool is an impact wrench.

[0016] The beneficial effects of this invention are as follows: By adopting a detachable connection design between the front and rear gun body covers, users can quickly replace drive shafts of different specifications without disassembling the overall structure or requiring professional maintenance assistance. At the same time, the cooperation between the sealing ring and the oil-impregnated bushing effectively enhances the sealing effect and transmission stability, thereby significantly improving the ease of operation and work efficiency, extending the tool's service life, and reducing maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an exploded three-dimensional view of the overall structure of an impact tool with a split gun body cover according to an embodiment of the present invention. Figure 2 This is an exploded front view of the overall structure of an impact tool with a split gun body cover according to an embodiment of the present invention. Figure 3 This is a partial cross-sectional perspective view of an impact tool with a split gun body cover according to an embodiment of the present invention; Figure 4 This is a perspective view of the overall structure of an impact tool with a split gun body cover according to an embodiment of the present invention. Figure 5 This is a top sectional view of an impact tool with a split gun body cover according to an embodiment of the present invention. Figure 6 This is a first-view exploded perspective view of an impact tool with a split gun cover, as described in an embodiment of the present invention, in its battery-loaded state. Figure 7 This is a second-view exploded perspective view of an impact tool with a split gun cover, as described in an embodiment of the present invention, in a battery-loaded state. Figure 8 This is a perspective view of an impact tool with a split gun body cover according to an embodiment of the present invention, including a battery assembly. Figure 9 This is a perspective view of an impact tool with a split gun body cover according to an embodiment of the present invention, including a battery and different rotating shafts. Figure 10 This is a perspective view of an impact tool with a split gun body cover according to an embodiment of the present invention, without a battery and including different rotation axes. In the diagram: 1. Drive shaft; 1A. Half-inch drive shaft; 1B. Three-quarter-inch drive shaft; 1C. Half-inch long drive shaft; 1D. Output shaft centerline; 2. Screw; 3. Front gun body cover; 4. Sealing ring; 5. Oil-impregnated bushing; 6. Rear gun body cover; 7. Hammer block; 8. Body assembly; 9. Strike assembly; 10. Drive mechanism; 11. Protruding annular groove; 12. Circumferential groove; 13. Impact tool assembly; 14. Screw hole. Detailed Implementation

[0019] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0020] It should be understood that in the description of the embodiments of the present invention, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of the present invention, "several" means two or more, unless otherwise explicitly specified.

[0021] like Figure 1-10 As shown, an impact tool with a split gun body cover according to an embodiment of the present invention includes a body assembly 8 and a drive shaft 1. The tool is characterized by further including a front gun body cover 3 and a rear gun body cover 6, wherein the front gun body cover 3 and the rear gun body cover 6 are detachably connected and together form a receiving cavity, and the drive shaft 1 is rotatably supported within this receiving cavity; the front gun body cover 3 is provided with an oil-impregnated bushing 5 and a sealing ring 4, and the rear gun body cover 6 is connected to the body assembly 8.

[0022] According to an embodiment of the present invention, an impact tool with a split gun body cover is provided. In a specific embodiment, the front gun body cover 3 and the rear gun body cover 6 are connected and fixed by a plurality of screws 2. The rear gun body cover 6 is provided with screw holes 14 that cooperate with the screws 2.

[0023] According to an embodiment of the present invention, an impact tool with a split gun body cover is provided. In a specific embodiment, the number of screws 2 is four, and they are evenly distributed circumferentially.

[0024] According to an embodiment of the present invention, an impact tool with a split gun body cover is provided. In a specific embodiment, the inner peripheral wall of the front gun body cover 3 is provided with a circumferential groove 12, and the sealing ring 4 is embedded in the circumferential groove 12.

[0025] According to an embodiment of the present invention, an impact tool with a split gun body cover is provided. In a specific embodiment, the outer periphery of the rear gun body cover 6 is provided with a protruding annular groove 11, and the body assembly 8 has a locking structure adapted to the protruding annular groove 11.

[0026] According to an embodiment of the present invention, an impact tool with a split gun body cover is provided. In a specific embodiment, the drive shaft 1 is an interchangeable structure, and the drive side size of its output end includes any one of 1 / 4 inch, 3 / 8 inch, 1 / 2 inch, 3 / 4 inch, 1 inch, 1½ inch, and 2½ inch.

[0027] According to an embodiment of the present invention, an impact tool with a split gun body cover is provided, in a specific embodiment, further comprising a striking component 9 disposed within the rear gun body cover 6, the striking component 9 comprising at least one hammer block 7, the hammer block 7 being drivenly connected to the transmission shaft 1.

[0028] According to an embodiment of the present invention, an impact tool with a split gun body cover is further comprising, in a specific embodiment, a drive mechanism 10, wherein the drive mechanism 10 is a pneumatic motor or an electric motor powered by a battery or an external power source, for providing rotational power to the drive shaft 1.

[0029] According to an embodiment of the present invention, an impact tool with a split gun body cover is provided. In a specific embodiment, the sealing ring 4 is sleeved on the annular portion of the front gun body cover 3 facing the rear gun body cover 6. The sealing ring 4 is used to form a seal and position when the front gun body cover 3 and the rear gun body cover 6 are engaged.

[0030] According to an embodiment of the present invention, an impact tool with a split gun body cover is, in a specific embodiment, an impact wrench.

[0031] To facilitate understanding of the above technical solutions of the present invention, the following detailed description of the above technical solutions of the present invention will be provided through specific usage methods.

[0032] In practical use, according to the present invention, an impact tool with a split-type gun body cover, the operator first selects the required size drive shaft. If the drive shaft needs to be replaced, use an Allen wrench or similar tool to loosen and remove the four screws securing the front and rear gun body covers. Remove the front gun body cover from the rear gun body cover, at which point the original drive shaft can be removed from the rear gun body cover's compartment. Then, install the selected new drive shaft into the rear gun body cover, ensuring it is properly installed. Next, close the front gun body cover onto the rear gun body cover, so that its internal oil-impregnated bushing is fitted onto the drive shaft, while the sealing ring within its surrounding groove forms a tight contact with the drive shaft surface. Finally, pass the four screws through the corresponding holes in the front gun body cover and screw them into the screw holes in the rear gun body cover, tightening them evenly to complete the fixation. At this point, the drive shaft replacement is complete, and the impact tool can be used normally.

[0033] This example uses a pneumatic impact wrench. The operator needs to replace the tool's original 3 / 8-inch drive shaft with a 1 / 2-inch drive shaft to accommodate a larger socket. First, turn off the air supply and ensure the tool is not in operation. Then, using a matching Allen wrench, unscrew the four Allen head screws connecting the front and rear gun body covers. Gently remove the front gun body cover, exposing the original drive shaft and impact assembly housed within the rear gun body cover. Remove the original drive shaft directly. Take out a brand new 1 / 2-inch drive shaft, with its output end facing outwards, and correctly insert it into the rear gun body cover, ensuring it engages properly with the internal hammer. Then, reposition and close the front gun body cover, allowing the drive shaft shaft to pass through the oiled bushing and be tightly encased by the seal. Finally, reinsert the four screws and tighten them evenly to restore the tool's integrity. Once the air supply is reconnected, the tool can output a greater torque that matches the 1 / 2-inch socket. The entire process requires no special tools or complicated operations and can be completed independently by the user on-site in a very short time.

[0034] In summary, by employing the above-mentioned technical solution of the present invention, and through the detachable connection design of the front gun body cover and the rear gun body cover, users can quickly replace drive shafts of different specifications without disassembling the overall structure or requiring professional maintenance assistance. At the same time, the cooperation between the sealing ring and the oil-impregnated bushing effectively enhances the sealing effect and transmission stability, thereby significantly improving the ease of operation and work efficiency, extending the tool's service life, and reducing maintenance costs.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An impact tool with a split-type gun cover, comprising a body assembly (8) and a drive shaft (1), characterized in that: It also includes a front gun cover (3) and a rear gun cover (6), the front gun cover (3) and the rear gun cover (6) are detachably connected and together form a receiving cavity, the drive shaft (1) is rotatably supported in the receiving cavity; the front gun cover (3) is provided with an oil-impregnated bushing (5) and a sealing ring (4), and the rear gun cover (6) is connected to the main body assembly (8).

2. An impact tool with a split-type gun body cover according to claim 1, characterized in that, The front gun cover (3) and the rear gun cover (6) are connected and fixed by multiple screws (2), and the rear gun cover (6) is provided with screw holes (14) that cooperate with the screws (2).

3. An impact tool with a split-type gun body cover according to claim 2, characterized in that, The number of screws (2) is four, and they are evenly distributed circumferentially.

4. An impact tool with a split-type gun body cover according to claim 1, characterized in that, The inner peripheral wall of the front gun cover (3) is provided with a circumferential groove (12), and the sealing ring (4) is embedded in the circumferential groove (12).

5. An impact tool with a split-type gun body cover according to claim 1, characterized in that, The outer periphery of the rear gun cover (6) is provided with a protruding annular groove (11), and the body assembly (8) has a locking structure that is adapted to the protruding annular groove (11).

6. An impact tool with a split-type gun body cover according to claim 1, characterized in that, The drive shaft (1) is an interchangeable structure, and the drive side size of its output end includes any one of 1 / 4 inch, 3 / 8 inch, 1 / 2 inch, 3 / 4 inch, 1 inch, 1½ inch and 2½ inch.

7. An impact tool with a split-type gun body cover according to claim 1, characterized in that, It also includes a striking assembly (9) disposed within the rear gun cover (6), the striking assembly (9) including at least one hammer (7), the hammer (7) being drivenly connected to the drive shaft (1).

8. An impact tool with a split-type gun body cover according to claim 1, characterized in that, It also includes a drive mechanism (10), which is a pneumatic motor or an electric motor powered by a battery or an external power source, for providing rotational power to the drive shaft (1).

9. An impact tool with a split-type gun body cover according to claim 1, characterized in that, The sealing ring (4) is fitted onto the annular portion of the front gun cover (3) facing the rear gun cover (6). The sealing ring (4) is used to form a seal and position when the front gun cover (3) and the rear gun cover (6) are engaged.

10. An impact tool with a split-type gun body cover according to any one of claims 1-9, characterized in that, The impact tool is an impact wrench.

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