Air leg type air pick

Abstract

The utility model relates to the technical field of handheld construction equipment, in particular to an air leg type air pick, which comprises an impact mechanism and a steel chisel, a cylinder barrel is arranged in the impact mechanism, one radial side of the cylinder barrel is connected with a switch seat, a control hole and a connecting hole are arranged in the switch seat, the control hole is provided with a valve core for reversing control, and the connecting hole is hinged with one end of a lifting air leg. A hole channel is formed between the control hole and the connecting hole and communicated between the valve element and the lifting air leg, and the control hole is connected with a pressure air source through a pipeline. The installation position of the lifting air leg is additionally arranged on a machine body of an existing air pick, the air pick is used in cooperation with lifting of the air leg, the air pick does not need to be held manually, a long steel chisel can be installed, the falling point of beaten stones is far away from an operator, and the safety of constructors can be well protected; and construction can be carried out in an environment which is 1-2 times higher than an operator without a scaffold.

Description

TECHNICAL FIELD

[0001] The utility model relates to hand-held construction machine tool technical field especially relates to a gas leg formula wind pick. BACKGROUND

[0002] The wind pick is one of the tools commonly used in engineering site, which is powered by compressed air and uses impact to break hard objects. The existing wind pick is composed of a gas distribution mechanism, an impact mechanism and a steel pick. Figure 1 As shown in the figure, one end of the wind pick is provided with a pick handle 10, the middle part is provided with a pick barrel 110, and the other end is provided with a steel pick 12. The existing wind pick has enough strength when in use, mainly relies on manual operation, and is usually heavy. Especially when the wind pick is used, it is very inconvenient to operate, relies on the human body as the operation support, and can only provide limited impact force. At the same time, the operator must operate at close range, the operation radius is small, the distance to the dangerous area is close, and the construction environment is dangerous. When the environment above the body part is constructed, there is a risk of being hit or bumped by falling objects. TECHNICAL CONTENT

[0003] The utility model solves the technical problems existing in the above technical field, provides a gas leg formula wind pick, adopts the switch seat connected on one side of the cylinder barrel, installs the valve core and the lifting air leg through the control hole and the connecting hole in the inside, solves the problem that the existing wind pick relies on manual operation and cannot provide strong impact force.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a gas leg formula wind pick, which comprises an impact mechanism and a steel pick, the impact mechanism is provided with a cylinder barrel, one side of the cylinder barrel is connected with a switch seat, the switch seat is provided with a control hole and a connecting hole, the control hole is provided with a valve core for reversing control, the connecting hole is hingedly connected with one end of a lifting air leg, a hole channel is arranged between the control hole and the connecting hole, the hole channel is communicated between the valve core and the lifting air leg, and the control hole is connected with a pressure gas source through a pipeline.

[0005] Further optimize the technical scheme, one end of the lifting air leg is provided with a hinge joint, the hinge joint is provided with an air channel, and the air channel is communicated between the connecting hole and the air chamber of the lifting air leg.

[0006] Further optimize the technical scheme, the connecting hole is provided with a first ring groove and a second ring groove, the hole channel comprises a first hole channel and a second hole channel, one end of the first hole channel is communicated with the first ring groove, the second hole channel is communicated with the second ring groove, the air channel comprises a first air channel and a second air channel, one end of the first air channel is communicated with the first ring groove, one end of the second air channel is communicated with the second ring groove, and the other ends of the first air channel and the second air channel are respectively communicated with two air chambers of the lifting air leg.

[0007] Further optimize the technical scheme, the connecting hole is a rotary cone, the first ring groove and the second ring groove are arranged in the tapered surface of the inner wall of the connecting hole, one end of the hinge joint is provided with a tapered head, the tapered head is rotationally connected in the connecting hole, and the tapered head is provided with a sealing ring on the two sides of the corresponding position of the first ring groove and the second ring groove.

[0008] Further optimize the technical scheme, the radial side of the cylinder is provided with a mounting table, the upper side of the switch seat is provided with a mounting surface, the switch seat is in contact with the mounting table through the mounting surface, and the fixing screw rod is arranged between the switch seat and the mounting table.

[0009] Further optimize the technical scheme, the impact mechanism of the pickaxe cylinder is provided with a steel drill rod with different lengths.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1、 this product is on the basis of existing pickaxe, increase the installation position of lifting air leg on the machine body, pickaxe uses with air leg lifting, does not need manpower to hold pickaxe, can install longer steel drill rod, and the falling point distance of falling rock block is far from the operator, can well protect the safety of construction personnel, and can carry out construction on the environment which is 1-2 times higher than the operator without scaffold;

[0012] 2、 in order to facilitate the lifting action of the air leg, the air leg lifting operation valve is assembled to the integrated cylinder, has the characteristics of original pickaxe, high structural integration, stable and reliable equipment, long service life and low failure rate;

[0013] 3、 high structural integration, less pipeline leakage, improve the stability and reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the pickaxe in the prior art;

[0015] Figure 2 It is a partial explosion schematic view of the air leg type pickaxe;

[0016] Figure 3 It is a sectional view of the switch seat in the air leg type pickaxe at the position of the first hole and the second hole;

[0017] Figure 4 It is a sectional view of the air leg type pickaxe at the connecting hole;

[0018] Figure 5 It is a partial schematic view of the air leg type pickaxe when cooperating with the lifting air leg.

[0019] In the figure: 1, cylinder; 10, pick handle; 11, mounting table; 110, pick barrel; 111, positioning groove; 12, steel drill; 2, switch seat; 20, mounting surface; 201, boss; 21, control hole; 22, connecting hole; 221, first ring groove; 222, second ring groove; 23, first hole; 24, second hole; 3, valve core; 4, lifting air leg; 41, hinge joint; 410, conical head; 411, first air channel; 412, second air channel; 42, sealing ring. DETAILED DESCRIPTION

[0020] To make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific implementation manners. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like in the present application refer to the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] Combination Figures 2 to 3 As shown in the figure, a gas leg type air pick includes an impact mechanism and a steel drill, the impact mechanism is provided with a cylinder 1, the radial side of the cylinder 1 is provided with a mounting table 11, the upper side of the switch seat 2 is provided with a mounting surface 20, the radial side of the cylinder 1 is connected with the switch seat 2, the switch seat 2 is in contact and cooperation with the mounting table 11 through the mounting surface 20, the bottom surface of the mounting table 11 is provided with a positioning groove 111, the top surface of the mounting surface 20 is provided with a boss 201, the boss 201 is embedded into the positioning groove 111 after the switch seat 2 is installed in the mounting table 11, the switch seat 2 and the mounting table 11 are provided with a fixing screw, the air pick cylinder 1 is provided with an impact mechanism, one end of which is installed with a steel drill of different lengths.

[0023] Combination Figures 2 to 3As shown, the switch seat 2 is provided with a control hole 21 and a connecting hole 22, the control hole 21 is provided with a valve core 3 for reversing control, the valve core 3 here can be a two-position three-way valve or a three-position four-way valve, the specific structure of the valve core 3 can be made by the related technical personnel in the art without creative labor by using existing conventional means, and can also be selected in standard parts, which will not be described here. The connecting hole 22 is a rotary cone, and the connecting hole 22 is provided with a first ring groove 221 and a second ring groove 222, which are arranged in the tapered surface of the inner wall of the connecting hole 22.

[0024] In combination Figures 4 to 5 As shown, the connecting hole 22 is hinged with one end of the lifting air leg 4, and the control hole 21 and the connecting hole 22 are provided with a hole channel, which is communicated between the valve core 3 and the lifting air leg 4, and the hole channel includes a first hole channel 23 and a second hole channel 24. The first hole channel 23 and the second hole channel 24 are drilled from one side of the switch seat 2 when processed, and are communicated with the control hole 21 and the connecting hole 22, and the first hole channel 23 and the second hole channel 24 are screwed into the silencer or the air inlet joint at the opening of one side of the switch seat 2, without the need to separately process the corresponding mounting hole. The air inlet, air outlet and the like of the valve core 3 are determined according to the specific structure of the valve core 3, and there is no design difficulty for the related technical personnel in the art, which will not be described here. The top end of the lifting air leg 4 is provided with a hinge joint 41, and the hinge joint 41 is provided with an air channel, which is communicated between the connecting hole 22 and the air chamber of the lifting air leg 4. The air channel includes a first air channel 411 and a second air channel 412. One end of the hinge joint 41 is provided with a tapered head 410, which is rotatably connected in the connecting hole 22. One end of the tapered head 410 is provided with a locking mechanism, which limits the tapered head 410 in the connecting hole 22 to avoid falling out. The locking mechanism in the present embodiment is a screw and a threaded hole in one end of the tapered head 410, which realizes adjustable locking. One end of the first hole channel 23 is communicated with the first ring groove 221, and the second hole channel 24 is communicated with the second ring groove 222.

[0025] More specifically, one end of the first air channel 411 is communicated with the first ring groove 221, and one end of the second air channel 412 is communicated with the second ring groove 222. The tapered head 410 is provided with a sealing ring 42 on both sides of the corresponding position of the first ring groove 221 and the second ring groove 222. The control hole 21 is connected with a pressure gas source through a pipeline. The other ends of the first air channel 411 and the second air channel 412 are respectively communicated with two air chambers of the lifting air leg 4.

[0026] In use, the extension or shortening of the lifting air leg 4 is realized by rotating the valve core 3, and the high-pressure gas of the pressure gas source enters the valve core 3 in sequence through the hole, enters the first annular groove 221 or the second annular groove 222, and then enters the air chamber in the lifting air leg 4 through the air channel in the hinged joint 41, so as to realize the lifting of the pick during use, the structure has high integration, the pipeline leakage is small, and the stability and reliability of the equipment are improved. Since the support of the lifting air leg 4 to the pick greatly reduces the labor intensity of manual lifting, longer steel drills can be conveniently installed in the pick, thereby increasing the operation range and reducing the safety risk of the operator.

[0027] The control mode of the utility model is automatically controlled through the controller, and the control circuit of the controller can be realized through simple programming by the person skilled in the art, which belongs to the common knowledge in the field, so the utility model will not explain the control mode and circuit connection in detail.

[0028] Obviously, the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

Claims

1. A pneumatic hammer, comprising an impact mechanism and a steel chisel, wherein the impact mechanism includes a cylinder (1), characterized in that: A switch seat (2) is connected to one radial side of the cylinder (1). The switch seat (2) is provided with a control hole (21) and a connection hole (22). The control hole (21) is provided with a valve core (3) for reversing control. The connection hole (22) is hinged to one end of the lifting air leg (4). A channel is provided between the control hole (21) and the connection hole (22). The channel connects the valve core (3) and the lifting air leg (4). The control hole (21) is connected to a pressure air source through a pipe.

2. The pneumatic hammer according to claim 1, characterized in that: One end of the lifting air leg (4) is provided with a hinge joint (41), and the hinge joint (41) is provided with an air passage, which is connected between the connecting hole (22) and the air chamber of the lifting air leg (4).

3. A pneumatic hammer according to claim 2, characterized in that: The connecting hole (22) is provided with a first annular groove (221) and a second annular groove (222). The channel includes a first channel (23) and a second channel (24). One end of the first channel (23) is connected to the first annular groove (221), and the second channel (24) is connected to the second annular groove (222). The air passage includes a first air passage (411) and a second air passage (412). One end of the first air passage (411) is connected to the first annular groove (221), and one end of the second air passage (412) is connected to the second annular groove (222). The other ends of the first air passage (411) and the second air passage (412) are connected to the two air chambers of the lifting air leg (4) respectively.

4. A pneumatic hammer according to claim 3, characterized in that: The connecting hole (22) is a rotary cone. The first annular groove (221) and the second annular groove (222) are disposed in the conical surface of the inner wall of the connecting hole (22). One end of the hinge joint (41) is provided with a conical head (410). The conical head (410) is rotatably connected in the connecting hole (22). Sealing rings (42) are respectively provided on both sides of the conical head (410) corresponding to the positions of the first annular groove (221) and the second annular groove (222).

5. A pneumatic hammer according to claim 1, characterized in that: The cylinder (1) has a mounting platform (11) on one radial side, and the switch seat (2) has a mounting surface (20) on its upper side. The switch seat (2) contacts and engages with the mounting platform (11) through the mounting surface (20). A fixing screw is provided between the switch seat (2) and the mounting platform (11).

6. A pneumatic hammer according to claim 1, characterized in that: The cylinder of the pneumatic pick (1) is equipped with an impact mechanism and steel chisels of different lengths are installed at one end.

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