CN215433522U

CN215433522U - Pneumatic pick

Info

Publication number: CN215433522U
Application number: CN202121999101.6U
Authority: CN
Inventors: 唐金浩
Original assignee: Ningbo Yinzhou Yongdun Pneumatic Tools Manufacturing Co ltd
Current assignee: Ningbo Yinzhou Yongdun Pneumatic Tools Manufacturing Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-01-07
Anticipated expiration: 2031-08-24

Abstract

The utility model relates to an air pick, which comprises a pick handle, a pick barrel and a pick drill rod, wherein an inward sunken accommodating cavity is formed in the pick handle, one end of the pick barrel is arranged in the accommodating cavity, a connecting sleeve is arranged between the pick handle and the pick barrel, a pick handle spring is arranged between the pick handle and the connecting sleeve, the end part of the connecting sleeve is provided with a vertically-installed air inlet device and a valve device for on-off air inlet, one end of the pick barrel, which is hollow and far away from the pick handle, is provided with a head spring, the pick drill rod is inserted in the pick barrel, the head spring is arranged on the outer side of the pick drill rod, a first exhaust hole is formed in the side wall of the pick barrel, a wind shield is arranged outside the first exhaust hole, a groove is formed in the outer wall of the pick barrel, the wind shield is arranged in the groove, two ends of the wind shield are abutted against the side wall of the groove, and a second exhaust hole is formed in the wind shield. The air pick obtained by the utility model has the following advantages: simple structure, high environmental suitability, good protection effect, high safety and low working noise.

Description

Pneumatic pick

Technical Field

The utility model relates to a tool for engineering construction, in particular to an air pick.

Background

In the prior art, as chinese utility model patent CN2905357Y discloses a pneumatic pick, including pick handle, coupling sleeve end connection air inlet unit and valve device, the shoulder is equipped with the valve cabinet that has the return airway and the cylinder body that has exhaust hole and return airway in proper order in the coupling sleeve, is equipped with hammer block, pick borer and drill rod cover in the cylinder body, and the cylinder body head is connected with the head spring. The device is provided with the silencing cover, but the silencing cover is fixed through the outer clamping ring, but the vibration of the pneumatic pick during operation is large, the outer clamping ring is easy to loosen after the pneumatic pick works for a long time, and the fixed failure silencing cover falls off.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art and provide a firmly fixed air pick.

The utility model provides an air pick, which comprises a pick handle, a pick barrel and a pick drill rod, wherein an inward concave accommodating cavity is formed in the pick handle, one end of the pick barrel is arranged in the accommodating cavity, a connecting sleeve is arranged between the pick handle and the pick barrel, a pick handle spring is arranged between the pick handle and the connecting sleeve, the end part of the connecting sleeve is provided with a vertically-mounted air inlet device and a valve device for on-off air inlet, a head spring is arranged at one end, which is hollow, of the pick barrel and is far away from the pick handle, the pick drill rod is inserted in the pick barrel, the head spring is arranged on the outer side of the pick drill rod, a first exhaust hole is formed in the side wall of the pick barrel, a wind shield is arranged outside the first exhaust hole, a groove is formed in the outer wall of the pick barrel, the wind shield is arranged in the groove, two ends of the wind shield are abutted against the side wall of the groove, and a second exhaust hole is formed in the wind shield.

In order to achieve better exhaust effect, a third exhaust hole is formed in the windshield, and the third exhaust hole and the second exhaust hole are arranged in a centrosymmetric mode.

In order to reduce vibration, a shock pad is arranged between the pickaxe handle and the connecting sleeve.

For fixed reliable firm, the lower terminal surface of coupling sleeve has set gradually ring gear, buffer ring and for the axle retaining ring, and the internal tooth that the ring gear was on through its inner wall links firmly on the pickaxe section of thick bamboo, is equipped with the ring channel on the pickaxe section of thick bamboo, and buffer ring and for the axle retaining ring set up in the ring channel, and axle retaining ring one side and ring channel lateral wall butt.

In order to ensure reliable pick rod action, a convex ring, a hammer body and a drill sleeve are arranged in the pick cylinder, the hammer body can slide in the pick cylinder, one end of the drill sleeve is flush with the end face of the pick cylinder, the other end of the drill sleeve is abutted against the side wall of the convex ring, and the pick rod sleeve is sleeved on the drill sleeve.

In order to hold the pick handle with labor saving and comfort, the pick handle is provided with handles extending out to two sides, the pick handle is integrally T-shaped, the handle is provided with a handle sleeve, the handle sleeve is cylindrical and is provided with an opening at one end, the bottom of the handle sleeve is provided with an air hole, and the lower part of the side wall of the handle sleeve is provided with a fixing boss.

The air pick obtained by the utility model has the following advantages: simple structure, it is high to environmental suitability, the protecting effect is good, and the security is high, and noise at work is low, reliable operation, long service life grips comfortablely.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of embodiment 2 of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged view of a portion B of fig. 2.

In the figure: the pick rod comprises a pick rod 1, a pick cylinder 2, a pick drill rod 3, an accommodating cavity 4, a connecting sleeve 5, a pick rod spring 6, an air inlet device 7, a valve device 8, a head spring 9, a first exhaust hole 10, a wind shield 11, a groove 12, a second exhaust hole 13, a third exhaust hole 14, a shock pad 15, a gear ring 16, a buffer ring 17, a shaft check ring 18, an annular groove 19, a convex ring 20, a hammer body 21, a drill sleeve 22, a handle 23, a handle sleeve 24, an air hole 25 and a fixing boss 26.

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1:

the pneumatic pick provided in this embodiment, as shown in fig. 1, includes a pick handle 1, a pick barrel 2 and a pick rod 3, an inward recessed accommodating cavity 4 is provided on the pick handle 1, one end of the pick barrel 2 is provided in the accommodating cavity 4, a coupling sleeve 5 is provided between the pick handle 1 and the pick barrel 2, a pick handle spring 6 is provided between the pick handle 1 and the coupling sleeve 5, an air inlet 7 and a valve device 8 for on-off air inlet are provided at an end of the coupling sleeve 5, a head spring 9 is provided at an end of the pick barrel 2 that is hollow and far away from the pick handle 1, the pick rod 3 is inserted into the pick barrel 2, the head spring 9 is provided at an outer side of the pick rod 3, a first air outlet 10 is provided on a side wall of the pick barrel 2, a wind shield 11 is provided outside the first air outlet 10, a groove 12 is provided on an outer wall of the pick barrel 2, the wind shield 11 is provided in the groove 12, and two ends of the wind shield 11 are abutted against side walls of the groove 12, and a second air outlet 13 is provided on the wind shield 11.

Through the above design, the windshield 11 can reduce the influence that low temperature environment caused to pneumatic pick work, the noise volume when effectively reducing the pneumatic pick use simultaneously, the windshield 11 also can block inside and outside impurity, can prevent that external impurity from getting into the pneumatic pick, can prevent again that pneumatic pick during operation impurity from hitting personnel when gaseous from first exhaust hole 10 discharges along with, impurity can only fly out through second exhaust hole 13 after first exhaust hole 10 discharges, the scope of impurity departure has greatly been reduced, recess 12 can be with windshield 11 restriction in recess 12, prevent to make windshield 11 not hard up to drop because of pneumatic pick working vibrations.

The device simple structure, it is high to environmental suitability, the protecting effect is good, and the security is high, and noise at work is low.

Example 2:

in order to achieve a better air exhausting effect, as shown in fig. 2 to 4, in addition to the features described in embodiment 1, the air shield 11 is provided with a third air exhausting hole 14, and the third air exhausting hole 14 and the second air exhausting hole 13 are arranged along a central symmetry direction.

In order to reduce vibration, a shock absorption pad 15 is arranged between the pick handle 1 and the connecting sleeve 5.

In order to fix reliably and firmly, the lower end face of the connecting sleeve 5 is sequentially provided with a gear ring 16, a buffer ring 17 and a shaft check ring 18, the gear ring 16 is fixedly connected to the pickaxe barrel 2 through internal teeth on the inner wall of the gear ring, the pickaxe barrel 2 is provided with an annular groove 19, the buffer ring 17 and the shaft check ring 18 are arranged in the annular groove 19, and one side of the shaft check ring 18 is abutted against the side wall of the annular groove 19.

In order to ensure reliable action of the pick drill rod 3, a convex ring 20, a hammer body 21 and a drill sleeve 22 are arranged in the pick cylinder 2, the hammer body 21 can slide in the pick cylinder 2, one end of the drill sleeve 22 is flush with the end surface of the pick cylinder 2, the other end of the drill sleeve 22 is abutted against the side wall of the convex ring 20, and the pick drill rod 3 is sleeved on the drill sleeve 22.

In order to hold the pickaxe with labor saving and comfort, the pickaxe handle 1 is provided with the handles 23 extending towards two sides, the whole pickaxe handle 1 is in a T shape, the handles 23 are provided with the handle sleeves 24, the handle sleeves 24 are cylindrical, one ends of the handle sleeves are open, the bottoms of the handle sleeves 24 are provided with air holes 25, and the lower parts of the side walls of the handle sleeves 24 are provided with the fixing bosses 26.

Through the design, the design of the third exhaust hole 14 can improve the air outlet efficiency, reduce the air pressure intensity exhausted by the second exhaust hole 13, further reduce the damage possibly caused when impurities are exhausted along with the air, and reduce the noise; the shock pad 15 can effectively reduce the shock and prolong the service life; the gear ring 16 is firmly fixed, the buffer ring 17 can play a buffer role, the impact force between the connecting sleeve 5 and the pickaxe cylinder 2 is reduced, the buffer ring 17 can be placed in the annular groove 19 to prevent the buffer ring 17 from sliding, the shaft retainer ring 18 can play a role of blocking the buffer ring 17, and compared with the side wall of the annular groove 19, the blocking area of the shaft retainer ring 18 is larger, and the effect is better; the drill sleeve 22 can play a role in guiding the movement of the pick rod 3, the damage of the movement of the pick rod 3 to the side wall is large, the drill sleeve 22 replaces the side wall to be worn, the replacement and maintenance in the later period are convenient, and the cost is lower; the pick handle 1 is wholly T font, and handle 23 stretches out to both sides, is convenient for grip, and handle cover 24 plastics material grips more comfortablely, and the inside gas of discharge when gas pocket 25 is used for the installation of handle cover 24, the installation of being more convenient for just making handle cover 24 install inseparabler on handle 23, and fixed boss 26 can make handle cover 24 install more firmly on handle 23, prevents to grip the slippage.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. An air pick comprises a pick handle (1), a pick barrel (2) and a pick drill rod (3), wherein an inward concave accommodating cavity (4) is arranged on the pick handle (1), one end of the pick barrel (2) is arranged in the accommodating cavity (4), a connecting sleeve (5) is arranged between the pick handle (1) and the pick barrel (2), a pick handle spring (6) is arranged between the pick handle (1) and the connecting sleeve (5), an air inlet device (7) which is vertically installed and a valve device (8) for on-off air inlet are arranged at the end part of the connecting sleeve (5), a head spring (9) is arranged at one hollow end of the pick barrel (2) far away from the pick handle (1), the pick drill rod (3) is inserted on the pick barrel (2), the head spring (9) is arranged at the outer side of the pick drill rod (3), and is characterized in that a first exhaust hole (10) is arranged on the side wall of the pick barrel (2), a baffle (11) is arranged outside the first exhaust hole (10), and a groove (12) is arranged on the outer wall of the pick barrel (2), the wind shield cover (11) is arranged in the groove (12), two ends of the wind shield cover are abutted against the side wall of the groove (12), and the wind shield cover (11) is provided with a second exhaust hole (13).

2. An air pick as claimed in claim 1, wherein: and a third exhaust hole (14) is formed in the windshield (11), and the third exhaust hole (14) and the second exhaust hole (13) are arranged symmetrically along the center.

3. An air pick as claimed in claim 2, wherein: and a shock pad (15) is arranged between the pickaxe handle (1) and the connecting sleeve (5).

4. An air pick as claimed in claim 3, wherein: the lower terminal surface of coupling sleeve (5) has set gradually ring gear (16), buffer ring (17) and for the axle retaining ring (18), and internal tooth on ring gear (16) through its inner wall links firmly on a pickaxe section of thick bamboo (2), is equipped with ring channel (19) on a pickaxe section of thick bamboo (2), and buffer ring (17) and for the axle retaining ring (18) set up in ring channel (19), and for the axle retaining ring (18) one side and ring channel (19) lateral wall butt.

5. An air pick as claimed in claim 4, wherein: the pick cylinder (2) is internally provided with a convex ring (20), a hammer body (21) and a drill sleeve (22), the hammer body (21) can slide in the pick cylinder (2), one end of the drill sleeve (22) is flush with the end surface of the pick cylinder (2), the other end of the drill sleeve is abutted against the side wall of the convex ring (20), and the pick drill rod (3) is sleeved on the drill sleeve (22).

6. An air pick according to any one of claims 1 to 5, wherein: be equipped with handle (23) that stretch out to both sides on pick handle (1), pick handle (1) wholly is the T font, is equipped with handle cover (24) on handle (23), and handle cover (24) are cylindric and one end opening, and handle cover (24) bottom is equipped with gas pocket (25), and handle cover (24) lateral wall lower part is equipped with fixed boss (26).