CN211333054U - Pneumatic pick with drill rod pulling mechanism - Google Patents
Pneumatic pick with drill rod pulling mechanism Download PDFInfo
- Publication number
- CN211333054U CN211333054U CN201922074670.9U CN201922074670U CN211333054U CN 211333054 U CN211333054 U CN 211333054U CN 201922074670 U CN201922074670 U CN 201922074670U CN 211333054 U CN211333054 U CN 211333054U
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- CN
- China
- Prior art keywords
- drill rod
- pick
- drill
- cylinder body
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000005219 brazing Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 206010015137 Eructation Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses an air pick with a drill rod lifting mechanism, which comprises a handle body, a cylinder body with an air inlet interface, a forebody and a pick drill rod, wherein a reversing valve is arranged at the air inlet interface and comprises a pressure rod, a steel ball and a spring, and the end part of the pressure rod is exposed out of the cylinder body; a working gas path and a drill rod lifting gas path are arranged in the cylinder body, the drill rod lifting gas path and the working gas path are respectively connected with the reversing valve, the forebody is provided with a drill rod chamber and an inner cavity, a cylinder matched with the drill rod chamber is arranged on the pick drill rod, the inner cavity is communicated with the drill rod chamber, a ladder structure is arranged between the inner cavity and the drill rod chamber, a drill rod lifting hammer is arranged in the inner cavity, the drill rod lifting hammer is movably matched with the pick drill rod in a sealing manner, and a spring is arranged between the drill rod lifting; an air inlet hole is arranged on the side wall of the front body, and an air outlet hole is arranged on one side of the brazing chamber close to the stepped structure. The utility model discloses the pick that obtains that has plays borer mechanism sets up the borer gas circuit in the pick, when the pick borer blocks, can switch the gas circuit through the switching-over valve, utilizes the reverse hammering of borer hammer to play the borer, does not permit the manual work to play the borer, convenient and fast.
Description
Technical Field
The utility model relates to an air pick, especially an air pick with play borer mechanism.
Background
The pneumatic pick is a pneumatic tool which is often used for breaking stones and breaking and dismantling, hard rock, cement and the like are often broken, a pick drill rod of the pneumatic pick is often clamped in a gap in the using process, and the existing pick drill rod can only be stopped and pulled out by other tools after being separated from the pneumatic pick drill rod under the condition, so that the pneumatic pick is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing the pneumatic pick with the pick rod pulling mechanism, which can simply and conveniently pull the pick rod from the gap.
In order to achieve the purpose, the air pick with the drill rod pulling mechanism comprises a handle body, a cylinder body with an air inlet interface, a front body connected with the cylinder body in a sealing way and a pick drill rod inserted on the front body in a sealing way, wherein a reversing valve is arranged at the air inlet interface and comprises a pressing rod, a steel ball and a valve spring, the pressing rod is in movable sealing fit with the cylinder body, and the end part of the pressing rod is exposed out of the cylinder body; the pick drill comprises a cylinder body, a pick drill hammer, a drill rod lifting hammer, a drill rod lifting air passage, a reversing valve, a cylinder, an inner cavity, a stepped structure, a drill hammer, a drill hammer and a pick drill, wherein the cylinder is matched with the drill rod chamber; a spring is arranged between the large section and the front body; an air inlet is arranged on the side wall of the front body, and two ends of the air inlet are respectively communicated with the brazing filler metal lifting air passage and the upper cavity; and one side of the drill rod chamber, which is close to the stepped structure, is provided with an exhaust hole.
In order to improve the sealing performance between the brazing filler metal lifting gas path and the gas inlet hole, one end of the brazing filler metal lifting gas path, facing the front body, is provided with a jack, the front body is provided with an insertion tube matched with the jack, the insertion tube is communicated with the gas inlet hole, and a sealing ring is arranged between the insertion tube and the jack.
In order to facilitate the installation and fixation of the front body and the cylinder body, the front body and the cylinder body are respectively provided with a flange plate which is matched with each other, the front body and the cylinder body are connected and fixed through bolts between the flange plates, and in actual use, the flange plates can also be used as pedals for a user to stabilize the pickaxe drill rod.
In order to facilitate installation, the pressure rod is in threaded connection with the cylinder body.
The utility model discloses the pneumatic pick that has played borer mechanism that obtains through addding the borer gas circuit in the pneumatic pick, when the pick borer blocked, can switch the gas circuit through the switching-over valve, utilizes the reverse hammering of borer hammer to play the borer, does not permit the manual work to play the borer, convenient and fast.
Drawings
Fig. 1 is a schematic structural view of the pneumatic pick with a bit pulling mechanism of the present invention;
FIG. 2 is a cross-sectional view AA in FIG. 1;
fig. 3 is an enlarged schematic view at B in fig. 1.
In the figure: the drill rod device comprises a handle body 1, an air inlet connector 2, a cylinder body 3, a front body 4, a pick drill rod 5, a reversing valve 6, a drill rod hammer 7, a spring 8, a sealing ring 9, a bolt 10, a working air passage 30, a drill rod lifting air passage 31, a jack 32, a flange plate 33, a drill rod chamber 40, a stepped structure 41, an inner cavity 42, an air inlet hole 43, an air outlet hole 44, a cannula 45, a column body 50, a pressure rod 60, a steel ball 61, a valve spring 62, a large section 70, a small section 71, an air vent 72, an upper cavity 420 and.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1:
the pneumatic pick with the drill rod lifting mechanism described in the embodiment comprises a handle body 1, a cylinder body 3 with an air inlet interface 2, a front body 4 hermetically connected with the cylinder body 3 and a pick drill rod 5 hermetically inserted on the front body 4, wherein a reversing valve 6 is arranged at the air inlet interface 2, the reversing valve 6 comprises a pressure rod 60, a steel ball 61 and a valve spring 62, the pressure rod 60 is movably and hermetically matched with the cylinder body 3, and the end part of the pressure rod 60 is exposed out of the cylinder body 3; a working gas path 30 and a drill rod lifting gas path 31 are arranged in the cylinder 3, the drill rod lifting gas path 31 and the working gas path 30 are respectively connected with a reversing valve 6, a drill rod chamber 40 is arranged on one side of the front body 4 facing the cylinder 3, a cylinder 50 matched with the drill rod chamber 40 is arranged on the pick drill rod 5, an inner cavity 42 is arranged on one side of the front body 4 away from the cylinder 3, the inner cavity 42 is communicated with the drill rod chamber 40, a stepped structure 41 is arranged between the inner cavity 42 and the drill rod chamber 40, a drill rod hammer 7 is arranged in the inner cavity 42, the drill rod hammer 7 is movably matched with the pick drill rod 5 in a sealing manner, the drill rod hammer 7 comprises a large section 70 matched with the inner cavity 42 and a small section 71 matched with the stepped structure 41, the large section 70 divides the inner cavity 42 into an upper cavity 420 and a lower cavity 421, a vent hole 72 is arranged on the drill rod hammer 7, one end of the; a spring 8 is arranged between the large section 70 and the front body 4; an air inlet hole 43 is arranged on the side wall of the front body 4, and two ends of the air inlet hole 43 are respectively communicated with the brazing filler metal gas lifting path 31 and the upper cavity 420; the drill chamber 40 is provided with an exhaust hole 44 at one side close to the stepped structure 41.
In order to improve the sealing performance between the brazing gas raising channel 31 and the gas inlet hole 43, as shown in fig. 1 and 3, a plug hole 32 is formed in one end of the brazing gas raising channel 31 facing the front body 4, a cannula 45 matched with the plug hole 32 is arranged on the front body 4, the cannula 45 is communicated with the gas inlet hole 43, and a sealing ring 9 is arranged between the cannula 45 and the plug hole 32.
In order to facilitate the installation and fixation of the front body 4 and the cylinder 3, as shown in fig. 2, the front body 4 and the cylinder 3 are both provided with flanges 33 which are matched with each other, the front body 4 and the cylinder 3 are connected and fixed through bolts 10 between the flanges 33, and in actual use, the flanges 33 can also be used as pedals for a user to stabilize the pick rod 5.
For the convenience of installation, as shown in fig. 2, the pressing rod 60 is screwed with the cylinder 3.
In the actual working process, when the pick rod 5 is clamped, the control pressure rod 60 pushes the steel ball 61 to cut off the communication between the air inlet connector 2 and the working air passage 30, and simultaneously, the air inlet connector 2 is communicated with the pick rod air passage 31, compressed air enters the upper chamber 420 along the pick rod air passage 31 and the air inlet 43 to push the pick rod 7 to move downwards against the force of the spring 8, the outlet of the small section 71 of the vent hole 72 is sealed by the stepped structure 41, when the pick rod 7 continuously moves downwards to the vent hole 72 to be communicated with the upper chamber 420, air rushes into the lower chamber 421, the pick rod 7 overcomes the gravity and hammers the cylinder 50 of the pick rod 5 under the combined action of air pressure and the spring 8, and the pick rod 5 is gradually separated from a gap.
The pneumatic pick with a drill rod pulling mechanism provided by the embodiment has the advantages that the drill rod pulling air path 31 is additionally arranged in the pneumatic pick, when the pick drill rod 5 is clamped, the air path can be switched through the reversing valve 6, the drill rod is hammered in the reverse direction by the drill rod pulling hammer 7, manual drill rod pulling is not required, and the pneumatic pick is convenient and fast.
Claims (5)
1. A pneumatic pick with a drill rod lifting mechanism comprises a handle body, a cylinder body with an air inlet interface, a front body connected with the cylinder body in a sealing mode and a pick drill rod inserted on the front body in a sealing mode, and is characterized in that a reversing valve is arranged at the air inlet interface and comprises a pressing rod, a steel ball and a valve spring, the pressing rod is in movable sealing fit with the cylinder body, and the end portion of the pressing rod is exposed out of the cylinder body; the pick drill comprises a cylinder body, a pick drill hammer, a drill rod lifting hammer, a drill rod lifting air passage, a reversing valve, a cylinder, an inner cavity, a stepped structure, a drill hammer, a drill hammer and a pick drill, wherein the cylinder is matched with the drill rod chamber; a spring is arranged between the large section and the front body; an air inlet is arranged on the side wall of the front body, and two ends of the air inlet are respectively communicated with the brazing filler metal lifting air passage and the upper cavity; and one side of the drill rod chamber, which is close to the stepped structure, is provided with an exhaust hole.
2. The pneumatic pick with a bit pulling mechanism as claimed in claim 1, wherein the bit pulling gas path has a plug hole at an end facing the front body, the front body has a tube fitting the plug hole, the tube is connected to the gas inlet hole, and a sealing ring is disposed between the tube and the plug hole.
3. A pneumatic pick with a drill rod pulling mechanism as claimed in claim 1 or 2, wherein the front body and the cylinder body are provided with mutually matched flanges, and the front body and the cylinder body are fixedly connected through bolts between the flanges.
4. The air pick with the drill rod pulling mechanism as claimed in claim 1 or 2, wherein the press rod is in threaded connection with the cylinder body.
5. The pneumatic pick with a bit pulling mechanism of claim 3, wherein said compression rod is threadedly connected to said cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074670.9U CN211333054U (en) | 2019-11-27 | 2019-11-27 | Pneumatic pick with drill rod pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922074670.9U CN211333054U (en) | 2019-11-27 | 2019-11-27 | Pneumatic pick with drill rod pulling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211333054U true CN211333054U (en) | 2020-08-25 |
Family
ID=72136672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922074670.9U Expired - Fee Related CN211333054U (en) | 2019-11-27 | 2019-11-27 | Pneumatic pick with drill rod pulling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211333054U (en) |
-
2019
- 2019-11-27 CN CN201922074670.9U patent/CN211333054U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 |