pneumatic puller

Abstract

This invention relates to a pneumatic exciter, comprising a grip assembly, an air inlet assembly, and a vibration assembly. The grip assembly includes a handle and a housing. The air inlet assembly is integrated with the grip assembly and includes a valve seat and a trigger. The vibration assembly is integrated with the grip assembly and includes a sliding cylinder, a vibration head, a vent cap, and a vibration seat. The sliding cylinder includes a sliding chamber, a first air inlet chamber, a second air inlet chamber, at least one air inlet hole, and at least one vent channel. By means of gas drive, the vibration seat moves the sliding cylinder backward relative to the housing, and then moves the sliding cylinder forward to its initial position after being driven by gas. Through the forward and backward movement of the sliding cylinder relative to the housing, a pneumatic exciter is provided that offers a stable grip, safe operation, and time-saving operation.

Claims

1. A pneumatic removal device, comprising: a grip assembly having a handle and a housing, the handle having an air inlet, a receiving groove, a first air outlet and a second air outlet, the air inlet being disposed within the handle, the receiving groove being recessed in the middle section of the handle and communicating with the air inlet, the first air outlet being disposed at the top of the handle and communicating with the receiving groove and selectively communicating with the air inlet, the second air outlet being disposed at the top of the handle and communicating with the air inlet, the housing being combined with the handle and having a chamber, a front opening end and a rear opening end, the chamber being disposed inside the housing and communicating with the first air outlet and the second air outlet; An air intake assembly, which is combined with the grip assembly and includes a valve seat and a trigger, wherein the valve seat is disposed within the receiving groove, and the trigger is pressably engaged with the valve seat and disposed on the outer surface of the grip, wherein pressing the trigger allows the air intake passage to connect with the first air outlet passage via the receiving groove; and a vibration assembly, which is movably combined with the grip assembly and includes a sliding cylinder, a vibration head, a vent cap, and a vibration base, wherein the sliding cylinder is axially movable forward and backward relative to the outer casing. The sliding cylinder is movable and includes a front locking end, a rear closed end, a sliding chamber, a first air inlet chamber, a second air inlet chamber, at least one air inlet hole, and at least one air outlet channel. The sliding cylinder is disposed within the chamber. The front locking end extends beyond the front open end, and the rear closed end extends beyond the rear open end. The sliding chamber is disposed inside the sliding cylinder. The first air inlet chamber is annularly disposed on the outer surface of the sliding cylinder and communicates with the first air outlet channel. The second air inlet chamber is annularly disposed on the outer surface of the sliding cylinder and communicates with the second air outlet channel. The at least one air inlet is radially penetrating the sliding cylinder and communicating with the sliding chamber and the first air inlet chamber. The at least one venting channel is arranged axially rearward along the sliding cylinder and adjacent to the rear closed end. The vent cover is fitted onto the rear closed end of the sliding cylinder and abuts against the outer shell. The vent cover is connected to the at least one venting channel. The vibrating head is combined with the front locking end and located on the front side of the outer shell. The vibrating seat is axially movable in the sliding chamber and impacts the sliding cylinder to move rearward. The vibrating seat is provided with a vent, a connecting hole and an exhaust hole. The vent is axially recessed into the front side of the vibrating seat and communicates with the sliding chamber. The connecting hole radially penetrates the vibrating seat and communicates with the first exhaust channel via the sliding chamber, at least one air inlet and the first air inlet chamber. The exhaust hole radially penetrates the vibrating seat and communicates with the vent. The exhaust hole selectively communicates with the vent cover and the sliding chamber via the at least one venting channel.

2. The pneumatic puller as claimed in claim 1, wherein the housing has an annular groove in a chamber adjacent to the rear opening end, the annular groove being adjacent to a second air outlet of the handle, and a sealing ring is provided in the annular groove.

3. The pneumatic puller as described in claim 2, wherein the vibration assembly is provided with a first abutment groove and a second abutment groove, the first abutment groove being annularly disposed on the outer surface of the sliding cylinder and adjacent to the front locking end, the second abutment groove being annularly disposed on the outer surface of the sliding cylinder and spaced apart from the first abutment groove, the first air inlet chamber being annularly disposed between the first abutment groove, the second abutment groove and the outer shell, and the second air inlet chamber being disposed between the second abutment groove, the annular groove and the outer shell; the sliding cylinder is provided with an abutment ring in the first abutment groove and the second abutment groove respectively, so that the sliding cylinder can contact and abut against the outer shell through the two abutment rings and the sealing ring.

4. The pneumatic puller as claimed in claim 3, wherein there is a gap between the sealing ring and the ring groove, and a gap between each abutment ring and its corresponding abutment groove.

5. The pneumatic puller as described in claim 4, wherein the vent cover is provided with a plurality of spaced-apart vent holes.

6. The pneumatic puller as described in any one of claims 1 to 5, wherein the vibrating head is provided with a coupling seat and a vibrating shaft, the coupling seat being fixedly coupled to the front locking end, and the vibrating shaft being coupled to the coupling seat.

7. The pneumatic puller as described in claim 6, wherein the coupling and the vibration shaft are an integral structure.

8. The pneumatic puller as described in claim 6, wherein the coupling and the vibrating shaft are a separate structure.

9. The pneumatic puller as described in claim 6, wherein the exhaust port is set at an angle to the connecting port.

10. The pneumatic puller as claimed in claim 9, wherein the connecting hole and the exhaust hole are cross-shaped in the axial direction of the vibrating seat.

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