CN202325224U

CN202325224U - Handheld pneumatic rock drill

Info

Publication number: CN202325224U
Application number: CN201120441037XU
Authority: CN
Inventors: 常建
Original assignee: BEIJING LINGTIAN CENTURY AUTOMATION TECHNOLOGY Co Ltd
Current assignee: BEIJING LINGTIAN CENTURY AUTOMATION TECHNOLOGY Co Ltd
Priority date: 2011-11-09
Filing date: 2011-11-09
Publication date: 2012-07-11
Anticipated expiration: 2021-11-09

Abstract

The utility model discloses a handheld pneumatic rock drill which is used for rescue operation of drilling holes on components such as bricks, rocks and concretes. The handheld pneumatic rock drill comprises a chuck, a piston, a piston return spring, an airspeed indicator port, an air inlet channel, a shuttle valve, an air outlet, a trigger valve plunger, a handheld handle, a trigger lever, a trigger link, an airspeed indicator, a connector, a tool head, a rock drill, an air pipe, a pressure meter, a carbon fiber air bottle and a connecting air pipe, wherein the chuck is positioned at the most front end of the rock drill for clamping the tool head, thus the tool head and the rock drill are in seamless connection; a piston rod is connected with the piston return spring and is positioned at the inner part of a rock drill cavity; the tool head is impacted by the piston; and the piston return spring is used for pulling back the piston rod which is used for drilling the rocks, and thus the piston rod can be returned. The handheld pneumatic rock drill disclosed by the utility model has the characteristics of reasonable design, simple structure, long service life and strong maneuverability and flexibility.

Description

The hand-held pneumatic hammer drill

Technical field

The utility model relates to a kind of hand-held pneumatic hammer drill that the rescue operation is holed that is used on members such as brick, stone, concrete.

Background technology

The Pneumatic impact hammer drill is well-known.This machine is that motor moves back and forth piston and is configured to and in operation transmits reciprocal impact to the end of drilling tool in shell.Air drill also is equipped with whirligig usually makes the drilling tool rotation, also is equipped with the rigid pipe of minor diameter usually, and this pipe is through the hole of centre and more or less with concentric along the hole at drilling tool center.This pipe ends at the external hose joint at the rear portion of hammer drill.In boring procedure; The fire hose headband of relatively low pressure is connected on the union; Water is along the rigid pipe injection and through the hole in the drilling tool; In the process of boring, this water closes on the rock breaks from drilling tool sends, and the landwaste that is used for suppressing dust that air carries secretly and washes out fracture from the hole of boring.

The basic structure of the existing hand-held pneumatic hammer drill of China is very nearly the same; Form by rubber shock-absorbing handgrip, handgrip joint, handle body, control valve, distributing valve group, cylinder body, piston, head, ratchet, ratchet, turning set and drill steel; For example number of patent application is to disclose a kind of light hand-held pneumatic hammer drill in 03203007 the patent, is made up of left rubber shock-absorbing handgrip, inlet suction port, integral cast handle, handle body, control valve, manipulating handgrip, right rubber shock-absorbing handgrip, valve block, valve cabinet, two faceted pebble valve seat, cylinder body, ratchet fixed cover, ratchet, ratchet, rifle nut, head, O shape rubber distensible ring, drilling tool, screw thread eccentric orfice pricker card, turning set, piston etc.Simple in structure, easy to process, in light weight, efficient is high, easy to operate, safe and reliable, applied range is a kind of pneumatic tools of novelty, is specially adapted to quarrying industry, builing industry.

The weak point of the hammer drill of this structure is that application life short, and the working region is restricted, and mobility, flexibility are not strong.

Summary of the invention

The quiet electric drill of the utility model is to above deficiency, a kind of reasonable in design, simple in structure, long service life is provided, mobility, the strong hand-held pneumatic hammer drill of flexibility.

The utility model solves the technical scheme that its technical problem adopted: hand-held drifter is by chuck, piston rod, piston return spring, airspeed indicator harbour, air intake passage, shuttle valve, exhaust opening, triggering valve plunger, pistol grip, triggering lever, triggering link, airspeed indicator, joint, and tool heads, hammer drill, tracheae, pressure meter, carbon fiber gas cylinder, connection tracheae are formed.

Chuck is positioned at hammer drill and clamps tool heads foremost, makes that tool heads and hammer drill are seamless to be connected;

Piston rod connects piston return spring and is positioned at rock drilling machine gun body inside, the piston impact tool heads, and piston return spring is used to retract the piston rod of rock drilling, makes the piston rod return;

The airspeed indicator harbour is used to place airspeed indicator, is positioned at hand-held handle top, the piston bottom;

Air intake passage bottom is blocked by triggering valve plunger, triggers valve plunger and is connected with triggering link, triggers link and triggers lever and is connected, and finger is moved and triggered lever and promptly spur and trigger link, triggers linking drive triggering valve plunger, and the air intake passage is opened the gas entering;

Shuttle valve is connected with exhaust port passageways, when piston return spring retracts piston, presses the shuttle valve exhaust port passageways gas that is opened and discharges from exhaust opening;

The hand-held handle when hammer drill is worked, the place that palm is held;

Airspeed indicator is used to indicate the speed of air;

Tracheae through joint be connected tracheae and be connected and be used to import gas;

Pressure meter is connected with the carbon fiber gas cylinder, the air pressure of indication input.

Compared with prior art, a kind of hand-held pneumatic hammer drill of the utility model has reasonable in design, simple in structure, long service life, mobility, the strong characteristics of flexibility.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model patent is further specified.

Fig. 1 is the hand-held drifter structure chart;

Fig. 2 is the hand-held drifter overall schematic;

1. chucks, 2. pistons, 3. piston return springs, 4. airspeed indicator harbours, 5. air intake passages, 6. shuttle valves, 7. exhaust openings 8. trigger valve plunger 9. hand-held handles 10. and trigger lever 11. triggering links 12. airspeed indicators 13. joints 14. tool heads 15. hammer drill 16. tracheaes 17. pressure meters 18. carbon fiber gas cylinders 19. connection tracheaes among the figure.

The specific embodiment

The embodiment of the utility model is described below in conjunction with accompanying drawing.

Fig. 1 1. chucks shown in Figure 2 2. pistons 3. piston return springs 4. airspeed indicator harbours 5. air intake passages, 6. shuttle valves, 7. exhaust openings 8. trigger valve plunger 9. hand-held handles 10. and trigger lever 11. triggering links 12. airspeed indicators 13. joints 14. tool heads 15. hammer drill 16. tracheaes 17. pressure meters 18. carbon fiber gas cylinders 19. connection tracheaes.

The utility model hand-held pneumatic hammer drill in use; Be connected with tracheae connecting tracheae with joint, open the carbon fiber gas cylinder, observe manometric gas pressure; Compressed Gas warp 16,19 tracheaes, manipulation 10 triggering levers 11 triggering links 12 airspeed indicators 8 triggering valve plungers 4 airspeed indicator harbours, 5 air intake passages, 6 shuttle valves, promotion 2 piston rods are made stroke movement; 3 piston return springs promote, and a moving linearly is until impacting drilling tool; In the piston rod stroke movement; Cylinder body back cavity volume reduces gradually; Gas is compressed; When piston rod movement to cylinder body ante-chamber and the connection of cylinder body 7 exhaust openings, because suction function makes two faceted pebble valve blocks on valve seat, swing the air vent that cuts off to the ante-chamber air feed, the air vent of opening to the back cavity air feed begins to the back cavity air feed; Piston rod begins drawback movement in the effect of inertia down stroke until impacting drilling tool then.

Claims

1. hand-held pneumatic hammer drill; It is characterized in that: comprise chuck, piston, piston return spring, airspeed indicator harbour, air intake passage, shuttle valve, exhaust opening, triggering valve plunger, hand-held handle, trigger lever, triggering link, airspeed indicator, joint, tool heads, hammer drill, tracheae, pressure meter, carbon fiber gas cylinder, connection tracheae; Chuck is positioned at hammer drill and clamps tool heads foremost; Make that tool heads and hammer drill are seamless to be connected, piston rod connects piston return spring, and to be positioned at rock drilling machine gun body inner, the piston impact tool heads; Piston return spring is used to retract the piston rod of rock drilling, makes the piston rod return.

2. hand-held pneumatic hammer drill according to claim 1 is characterized in that: the airspeed indicator harbour is used to place airspeed indicator, is positioned at hand-held handle top; The piston bottom, air intake passage bottom is blocked by triggering valve plunger, and the triggering valve plunger links with triggering and is connected; Triggering link is connected with the triggering lever; Finger is moved the triggering lever and is promptly spurred the triggering link, triggers link drive triggering valve plunger, and the air intake passage is opened gas and got into.

3. hand-held pneumatic hammer drill according to claim 1 is characterized in that: shuttle valve is connected with exhaust port passageways, when piston return spring retracts piston; Press the shuttle valve exhaust port passageways gas that is opened and discharge from exhaust opening, the hand-held handle when hammer drill is worked, the place that palm is held; Airspeed indicator is used to indicate the speed of air; Tracheae through joint be connected tracheae and be connected and be used to import gas, pressure meter is connected with the carbon fiber gas cylinder, the air pressure of indication input.