TWM263198U - Air exhausting device installed on handle of pneumatic tool - Google Patents

Description

M263198 IV. Creation Instructions (1) [Technical Field to which the New Type belongs] This creation relates to a pneumatic tool, especially an exhaust device provided on the grip of a pneumatic tool. [Prior art] In the conventional pneumatic tools, pressurized air enters the grip held by the hand. When the trigger is pulled, the pressurized air enters the internal air motor unit to provide the power required by the pneumatic tool. At the same time, a good exhaust channel is required for the maximum efficiency of the pneumatic tools; the relative setting of the exhaust channels of the pneumatic tools often affects the applicable areas of the work. It is directly located outside the outer casing of the air motor unit, so that the pressure air discharged from the work is directly discharged from the exhaust hole on the side of the air motor unit. If the discharged pressure air will cause the work of the work, it will directly affect the work quality and work. Efficiency, such as pneumatic grinders, pneumatic grinders, etc., will cause the metal dust to be scattered randomly after work.

In order to provide pneumatic tools for work, the pressure tools are selected to be discharged to the rear end and connected directly to the grips on the grip shell of the pneumatic tools. They often suffer from the danger of working efficiency when the supporting sets are placed. Discharge mode. [New content] Forced air discharge, most of the air type settings, this setting is usually directly set 'This setting and the impact of the pneumatic horse, resulting in a large number of Lili air in the exhaust channel, directly choose this The main purpose of the creation is to cover the side of the main body of the pneumatic tool with M263198. 4. Creation instructions (2) A tight grip housing is provided, and an exhaust channel is protruded from the side of the housing to provide an air motor inside the body. The pressurized air discharged during the work of the group is directly discharged from the exhaust hole at the rear end of the grip. The secondary purpose of this creation is that the air motor unit inside the main body of the air tool is provided with a ring channel in its outer ring, concentrated to a wide exhaust hole, and guided to the rear through the exhaust channel guided inside the housing. End vents. The purpose of this creation is to cover the shell of the inner body of the pneumatic tool with the wall surface of the inner body flat and close to the peripheral edge of the inner body. An exhaust channel extending to the rear end is formed between the outer body with a protruding shape and the inner body, and the compressed air is guided to the rear end and the exhauster. The purpose of this creation is again, that the pneumatic tool is on the side of the grip, and the protruding air channel guides the pressure air to be discharged from the rear end, which will not affect the working efficiency of the air motor unit and improper setting of components. Yu. [Embodiment]

This creation relates to an exhaust device provided on the grip of a pneumatic tool. As shown in Figures 1 and 2, the pneumatic tool 11 is provided with a working head on one end of the body 14 and a grip on the other side. The grip 12, which is located below the grip 12, is provided with a trigger 15 and an air intake valve group 16, and an air inlet joint 17 is provided at the end; the air inlet joint 17 is connected with a pressure air duct to provide pressurized air to the air intake. The position of the valve group 16 is controlled by the trigger of 15 pressure air, which drives the internal air motor group to rotate, and provides the pressure required for the work of the air tool head 11; The ring-shaped passage is concentrated to the internal exhaust hole 23 and protrudes through the grip 1 2-side

Page 6 M263198

Fourth, the creation description (3) of the exhaust channel 2 5 leads to the exhaust hole 19 at the rear end to discharge. Please refer to FIGS. 1 to 4 again. The pneumatic tool 11 is provided with an air motor group 21 inside the front body 14. The outer edge of the air motor group 21 is provided with an annular channel 22. The annular channel 22 and a wide exhaust hole above 23 communicating; the pneumatic tool 11 is provided in the inner body 24 inside the grip 12 and communicates with the intake valve group 16 through a path, and the intake valve group 16 is controlled by an external trigger 15; provided in the inner body 24 The shape of the outer surface, in addition to the structural body, is also provided in cooperation with the grip housing 20 sleeved on the outside, so that when the housing 20 is placed on the outer edge surface of the inner body 24, except for the reserved position, In addition to mutual contact, the other toruses are in contact with or in opposition to each other, so that there will not be any sliding, impact, vibration and common vibration between the two assemblies. The reserved position is from the position of the upper edge exhaust hole 23 of the main body 14 along the straight line between the position of the inner ship 24 and the end air inlet joint 17 and protrudes outward from the upper part of the housing 20 appropriately. Height, the inner edge forms a communicating groove 27. One end of the groove 27 communicates with the exhaust hole 23 above the body 14, and the other end is flush with or slightly protruding from the end of the inner hole 24. The elongated groove 27 and the inner A long exhaust passage 25 is formed between the surfaces of the body 24, and the pressurized air during the operation of the air motor unit 21 is exhausted from the exhaust hole 23 through the exhaust passage 25 to the rear end.

The housing 20, which is sleeved in the inner body 24 of the pneumatic tool 11, is sleeved from the outer end, and an outer fixing plate 18 with an exhaust hole 19 is sleeved at the end. The entire casing 20 is fixed to the outside of the inner body 24 and provides a hand grip for the outer body portion of the grip 12. When the pneumatic tool 11 is working, the trigger valve group 16 controls the intake valve group 16 and a proper amount of pressure air is introduced to provide the pneumatic motor group 21 to generate work.

M263198___ 4. Creation instructions (4). At the same time, the compressed air is exhausted from the annular channel 22 on the outer edge of the air motor unit 21 to the upper exhaust hole 2 3 and discharged along the groove 2 7 (exhaust channel) provided inside the housing 20 25), the exhaust hole 19 to the rear end is discharged, and the discharged pressure air will not affect the progress of the work. A grip housing 20 is sleeved on the outside of the inner body 24 of the pneumatic tool 11. The housing 20 and the wall surface of the inner body 24 are provided with an exhaust passage 25 communicating from the front exhaust hole 23 to the rear end. The pressurized air provided by the pneumatic tool for work is guided to the exhaust hole 丨 9 at the rear end of the grip 12, and the pressurized air provided by the pneumatic tool 11 is concentrated from one side of the pneumatic stirrup group 2 and the guide bow is discharged to the rear end. The description of the above-mentioned embodiment fully reveals the relationship between the characteristics and structure of the creation, and it is clear that this case has made significant improvements. # Is a creation that is foreseen by the industry and can be easily achieved, and the structure also has its originality.

M263198 Schematic illustration [Simplified illustration] Figure 1 is a perspective view of the creation. Figure 2 is a perspective view of this creation. Figure 3 is an exploded view of this creation. Figure 4 is a sectional view of this creation.

Page 9 M263198_ Brief description of the diagram [Comparison table of component symbols]

Page 10 11 Pneumatic tools 12 Grip 13 Exhaust device 14 Body 15 Trigger 16 Intake valve group 17 Intake connector 18 Outer fixing plate 19 Exhaust hole 20 Normal body 21 Air motor group 22 Annular channel 2 3 Exhaust hole 24 Inner body 25 Exhaust channel 26 Wall surface 27 groove

Claims (1)

The scope of the patent application for M263198 is an exhaust device set on the grip of a pneumatic tool. It is attached to the inner part of the inner part of the pneumatic tool. A grip shell is set on the inner part of the front body. The compressed air exhaust hole of the group is characterized in that: '' The grip housing is set on the outside of the inner body of the pneumatic tool, and is closely adhered to the peripheral edge of the inner body with a close wall surface. The exhaust gas of the outer ring is a groove formed on the outside of the housing in the interior of the protruding body. The groove and the inner body form an exhaust channel extending to the rear end, and the outer end of the exhaust channel is sleeved by an external fixing plate. , And those with corresponding vent holes on the external fixing plate. Page 11