CN111098264A - Hand-held pneumatic impactor - Google Patents
Hand-held pneumatic impactor Download PDFInfo
- Publication number
- CN111098264A CN111098264A CN201911290288.XA CN201911290288A CN111098264A CN 111098264 A CN111098264 A CN 111098264A CN 201911290288 A CN201911290288 A CN 201911290288A CN 111098264 A CN111098264 A CN 111098264A
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- China
- Prior art keywords
- cylinder body
- hand
- ring
- drill bit
- joint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/04—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously of the hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a hand-held pneumatic impactor, which comprises a drill bit, a front joint and a cylinder body, wherein the drill bit, a clamp spring, a centering ring and an anvil form a drill bit mechanism, the drill bit mechanism is connected in the front joint in a sliding manner, the front joint is in threaded connection with the front end of the cylinder body, the tail end of the cylinder body is also in threaded connection with a rear joint, threads are further arranged on the outer side of the cylinder body, a punching hammer is connected in the cylinder body in a sliding manner through a first support ring, and the tail end of the punching hammer is sleeved on an air distribution rod through a second support ring and slides on the air distribution rod; the hand-held pneumatic impactor adopts compressed air as power, so that the impact hammer accounts for about 50% of the mass of the whole machine, the mass of a part for impact work is heavy, the miniaturization of the impactor is facilitated, the impact power is higher, and the working safety performance is higher in a humid environment; the conical surface is connected between the drill bit and the anvil, the connecting surface can transmit impact force more efficiently and reliably, and the conical surface connection can make the drill bit more convenient to mount and dismount.
Description
Technical Field
The invention relates to a pneumatic impactor, in particular to a handheld pneumatic impactor, and belongs to the technical field of handheld pneumatic tools.
Background
The hand-held impactor is an ideal hand-operated breaking and dismantling tool integrating working modes such as chiseling, cutting, smashing, prying and the like, and the existing breaking and dismantling tool mainly comprises a hand-held electric or pneumatic impactor and a pneumatic pipe rammer, but the existing hand-held electric or pneumatic impactor and the pneumatic pipe rammer respectively have the following defects.
(1) The existing hand-held electric impactor, or electric pick, is heavy because the motor must be attached to the main machine; moreover, the cable is dragged for operation, and certain potential safety hazards exist during operation in a wet space.
(2) The existing hand-held pneumatic impactor, or pneumatic pick, is often very heavy because of the traditional structural limitation, and a large air quantity is needed to achieve sufficient impact power.
(3) The existing pneumatic pipe rammer is used for laying underground pipelines, the weight of equipment is large, and the outer cylinder body bears impact force, so that the hand-held operation cannot be realized.
In order to solve the problems, a handheld pneumatic impactor which is powered by compressed air, suitable for long-time handheld operation of a single person and light in weight is provided.
Disclosure of Invention
The invention provides a handheld pneumatic impactor, which solves the problems that an impactor in the prior art is heavy, is not beneficial to handheld operation and is low in safety.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a hand-held pneumatic impactor which comprises a drill bit, a front connector and a cylinder body, wherein the drill bit, a clamp spring, a centering ring and an anvil form a drill bit mechanism, the drill bit mechanism is connected in the front connector in a sliding manner, the front connector is in threaded connection with the front end of the cylinder body, the tail end of the cylinder body is also in threaded connection with a rear connector, threads are further arranged on the outer side of the cylinder body, a punch hammer is connected in the cylinder body in a sliding manner through a first support ring, and the tail end of the punch hammer is sleeved on a gas distribution rod through a second support ring and slides on the gas distribution rod.
As a preferred technical scheme of the invention, the drill bit is connected to the front end of the anvil through a conical surface, the anvil is sleeved in the front joint, the outer side of the front end of the anvil is further sleeved with a centering ring, the centering ring is in contact with the inner wall of the front joint, and the centering ring is limited through a clamp spring at the front end of the centering ring.
As a preferable technical scheme of the invention, a first O-shaped sealing ring is arranged at the screwed joint of the front joint and the cylinder body, and a second O-shaped sealing ring is arranged at the screwed joint of the cylinder body and the rear joint.
As a preferred technical scheme of the invention, two first supporting rings are sleeved on the outer side of the impact hammer, and the two first supporting rings are tightly attached to the inner wall of the cylinder body.
As a preferable technical scheme of the invention, the air distribution rod is inserted into the cylinder body from the rear joint, two second support rings are sleeved on the outer side of the air distribution rod, and both the two second support rings are in contact with the inner wall of the tail end of the impact hammer.
As a preferable technical scheme of the invention, the gas distribution rod penetrates through and is connected in the rear joint, the front end of the rear joint is also connected with the shock pad, the front end of the shock pad is connected with the stop ring, and the stop ring and the shock pad are jointly sleeved on the gas distribution rod.
As a preferable technical scheme of the invention, the tail end of the rear joint is connected with a handle through a conical surface.
The invention has the following beneficial effects: compared with the prior art, the hand-held pneumatic impactor disclosed by the invention has the following beneficial effects:
1. compared with an electric pick, the hand-held pneumatic impactor has the advantages that the motor is not attached to the hand-held pneumatic impactor, the mass of a part for impacting and doing work is heavy under the condition of the same overall mass, so that the hand-held pneumatic impactor has higher impact energy, and the hand-held pneumatic impactor adopts compressed air as power, so that the work safety performance is higher under a humid environment.
2. Compared with an air pick, the hand-held pneumatic impactor disclosed by the invention adopts a pneumatic pipe rammer air distribution principle, the structure is simpler, the amount of compressed air required by the hand-held pneumatic impactor is less under the same impact power, a non-working state automatic sealing structure is designed, an air valve is not required to be arranged on a machine body, and the operation is more convenient.
3. The drill bit of the hand-held pneumatic impactor is connected with the anvil through the conical surface, the connecting surface can transmit impact force more efficiently and reliably, and the conical surface connection can enable the drill bit to be more convenient to mount and dismount; the handle is matched with the rear connector through the conical surface, the use in work is met, the installation and the disassembly are convenient, the threads are designed on the cylinder body, the holding force of hands is increased, and the handle can be applied to the fields of building dismantling, wall skin shoveling and tunnel wall repairing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the subjective structure of a hand-held pneumatic impactor of the present invention in an inoperative state;
FIG. 2 is an enlarged view of a portion A1 of FIG. 1 of a hand-held pneumatic impactor in accordance with the invention;
FIG. 3 is a schematic view of the subjective structure of a hand-held pneumatic impactor of the present invention in its working condition;
FIG. 4 is an enlarged view of a portion A2 of FIG. 3 of the hand-held pneumatic impactor in accordance with the invention;
in the figure: 1. a drill bit; 2. a clamp spring; 3. a righting ring; 4. an anvil; 5. a first O-ring seal; 6. a front joint; 7. a first support ring; 8. punching a hammer; 9. a cylinder body; 10. a second support ring; 11. a gas distribution rod; 12. a stopper ring; 13. a shock pad; 14. a rear joint; 15. a second O-ring seal; 16. and (4) carrying out handle.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
As shown in fig. 1-4, the invention provides a hand-held pneumatic impactor, which comprises a drill bit 1, a front joint 6 and a cylinder body 9, wherein the drill bit 1, a clamp spring 2, a centralizing ring 3 and an anvil 4 form a drill bit mechanism, the drill bit mechanism is slidably connected in the front joint 6, the front joint 6 is in threaded connection with the front end of the cylinder body 9, the tail end of the cylinder body 9 is in threaded connection with a rear joint 14, threads are further arranged on the outer side of the cylinder body 9, threads are designed on the cylinder body 9, the hand holding force is increased, long-time hand-held operation by a single person is facilitated, a punching hammer 8 is slidably connected in the cylinder body 9 through a first support ring 7, and the tail end of the punching hammer 8 is sleeved on a gas distribution rod 11 through a second support ring 10 and slides on the gas distribution rod 11.
The invention changes the principle that a working part of the pneumatic pipe rammer impacts the anvil, the anvil drives the outer cylinder body, and the outer cylinder body drives the rammed pipeline to move forwards in the soil layer into the principle that the anvil 4 slides with the cylinder body 9, and does not transmit the impact force from the impact hammer 8 to the cylinder body 9, so that the drill bit 1 can be directly acted by the impact force from the impact hammer 8 without feeling great impact force when the cylinder body 9 is held by a hand, thereby improving the impact efficiency.
The first O-shaped sealing ring 5 is arranged at the screw joint of the front joint 6 and the cylinder body 9, the second O-shaped sealing ring 15 is arranged at the screw joint of the cylinder body 9 and the rear joint 14, the air tightness between the cylinder body 9 and the front joint 6 and the air tightness between the cylinder body 9 and the rear joint 14 can be increased, automatic sealing is realized in a non-working state, an air valve is not required to be arranged on a machine body, and the handheld pneumatic impactor is more convenient to operate.
The tail end of the rear joint 14 is connected with a handle 16 through a conical surface, and the handle 16 is matched with the rear joint 14 through the conical surface, so that the use in work is met, and the installation and the disassembly are convenient.
Example 2
As shown in fig. 1 to 4, two first support rings 7 are sleeved on the outer side of the ram 8, the two first support rings 7 are both tightly attached to the inner wall of the cylinder 9, and the ram 8 can slide in the cylinder 9 straightly through the first support rings 7.
The air distribution rod 11 is inserted into the cylinder body 9 from the rear connector 14, two second support rings 10 are further sleeved on the outer side of the air distribution rod 11, the two second support rings 10 are all in contact with the inner wall of the tail end of the impact hammer 8, the air distribution rod 11 can be connected with an air source, compressed air is used as power to enable the impact hammer 8 to slide on the air distribution rod 11, the air distribution rod 11 penetrates through and is connected into the rear connector 14, the front end of the rear connector 14 is further connected with a shock pad 13, the front end of the shock pad 13 is connected with a stop ring 12, the stop ring 12 and the shock pad 13 are jointly sleeved on the air distribution rod 11, the air distribution rod 11 can be fixed in the cylinder body 9 through the stop ring 12, the shock pad 13 and the rear connector 14, and movement of.
Specifically, the air distribution rod 11 is connected with an air source, compressed air enters the impactor from the rear end through the air distribution rod 11, as shown in fig. 1-2, in a non-working state, a front cavity of the impact hammer 8 is communicated with the atmosphere, a rear cavity is under the pressure action of the compressed air, the impact hammer 8 moves forwards under the pressure difference action of the front cavity and the rear cavity to contact with the front joint 6 at a position a and seal the compressed air, and the impactor stops working; in the working state, as shown in fig. 3-4, the drill bit 1 contacts with the structure and moves backwards to drive the drill bit mechanism consisting of the clamp spring 2, the righting ring 3 and the anvil 4 to move backwards, a sliding seal is formed between the anvil 4 and the front joint 6 to prevent the front cavity of the impact hammer 8 from being communicated with the atmosphere, and the impact hammer 8 leaves the front joint 6 in the continuous backward movement process, so that the impactor enters the working state, the impact hammer 8 continuously impacts the anvil 4 and transmits impact force to the drill bit 1 through the anvil 4, and the drill bit 1 impacts the working surface.
The hand-held pneumatic impactor adopts compressed air as power, so that the impact hammer 8 accounts for about 50% of the mass of the whole impactor, the mass of a part for doing impact work is heavy, the impactor is favorably miniaturized, the impact power is higher, and the working safety performance is higher in a humid environment; a non-working state automatic sealing structure is designed, and an air valve is not required to be arranged on the machine body, so that the operation is more convenient; the drill bit 1 is connected with the anvil 4 through the conical surface, the connecting surface can transmit impact force more efficiently and reliably, and the conical surface connection can make the drill bit 1 more convenient to mount and dismount; the handle 16 is matched with the rear joint 14 through a conical surface, so that the use in work is met, the mounting and the dismounting are convenient, threads are designed on the cylinder body 9, the holding force of hands is increased, and the multifunctional cylinder can be applied to the fields of building dismounting, wall skin removing and tunnel wall repairing.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a hand-held type pneumatic impacter, includes bore bit (1), front connector (6) and cylinder body (9), its characterized in that, a bore bit mechanism is constituteed to bore bit (1), jump ring (2), centering ring (3) and hammering block (4), bore bit mechanism sliding connection is in front connector (6), front connector (6) threaded connection is at the front end of cylinder body (9), the tail end of cylinder body (9) is threaded connection has back connector (14) still, the outside of cylinder body (9) still sets up the screw thread, there is impact hammer (8) through first support ring (7) sliding connection in cylinder body (9), the tail end of impact hammer (8) is established on distribution pole (11) through second support ring (10) cover to slide on distribution pole (11).
2. The hand-held pneumatic impactor as claimed in claim 1, wherein the drill bit (1) is connected to the front end of an anvil (4) through a conical surface, the anvil (4) is sleeved in the front joint (6), a centering ring (3) is further sleeved on the outer side of the front end of the anvil (4), the centering ring (3) is in contact with the inner wall of the front joint (6), and the centering ring (3) is further limited by a clamp spring (2) at the front end of the centering ring.
3. A hand-held pneumatic impactor according to claim 1, wherein a first O-ring (5) is arranged at the threaded connection of the front connector (6) and the cylinder body (9), and a second O-ring (15) is arranged at the threaded connection of the cylinder body (9) and the rear connector (14).
4. The hand-held pneumatic impactor as claimed in claim 1, characterized in that two first support rings (7) are sleeved on the outer side of the impact hammer (8), and the two first support rings (7) are tightly attached to the inner wall of the cylinder (9).
5. The hand-held pneumatic impactor as claimed in claim 1, characterized in that the gas distribution rod (11) is inserted into the cylinder (9) from a rear joint (14), two second support rings (10) are sleeved on the outer side of the gas distribution rod (11), and both second support rings (10) are in contact with the inner wall of the tail end of the ram (8).
6. The hand-held pneumatic impactor as claimed in claim 5, wherein the gas distribution rod (11) penetrates through and is connected to the rear joint (14), the front end of the rear joint (14) is further connected with a shock absorption pad (13), the front end of the shock absorption pad (13) is connected with a stop ring (12), and the stop ring (12) and the shock absorption pad (13) are jointly sleeved on the gas distribution rod (11).
7. A hand-held pneumatic impactor as claimed in claim 6, characterized in that the rear end of the rear connector (14) is conically tapered with a handle (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290288.XA CN111098264A (en) | 2019-12-16 | 2019-12-16 | Hand-held pneumatic impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290288.XA CN111098264A (en) | 2019-12-16 | 2019-12-16 | Hand-held pneumatic impactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111098264A true CN111098264A (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911290288.XA Pending CN111098264A (en) | 2019-12-16 | 2019-12-16 | Hand-held pneumatic impactor |
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| CN (1) | CN111098264A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740960A (en) * | 1969-11-07 | 1973-06-26 | E Erma | Elastic pressure fluid driven motor |
| CN2734971Y (en) * | 2004-10-19 | 2005-10-19 | 阿特拉斯·科普柯(张家口)建筑矿山设备有限公司 | Pneumatic down-hole hammer |
| CN201050295Y (en) * | 2007-06-19 | 2008-04-23 | 广州市天凿精机机械有限公司 | Punching device |
| CN201705198U (en) * | 2010-05-28 | 2011-01-12 | 济源华新液压机械有限公司 | Pneumatic impactor |
| CN202733169U (en) * | 2012-08-13 | 2013-02-13 | 周升风 | Pneumatic tamping pipe hammer |
| CN204827221U (en) * | 2015-07-25 | 2015-12-02 | 湖南新金刚工程机械有限公司 | Novel valveless does not have pneumatic downhole air hammer of nylon tail pipe |
| CN108086899A (en) * | 2018-01-24 | 2018-05-29 | 长江大学 | One kind pneumatically rocks rock fracture in dynamic indentation boring bar tool |
-
2019
- 2019-12-16 CN CN201911290288.XA patent/CN111098264A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740960A (en) * | 1969-11-07 | 1973-06-26 | E Erma | Elastic pressure fluid driven motor |
| CN2734971Y (en) * | 2004-10-19 | 2005-10-19 | 阿特拉斯·科普柯(张家口)建筑矿山设备有限公司 | Pneumatic down-hole hammer |
| CN201050295Y (en) * | 2007-06-19 | 2008-04-23 | 广州市天凿精机机械有限公司 | Punching device |
| CN201705198U (en) * | 2010-05-28 | 2011-01-12 | 济源华新液压机械有限公司 | Pneumatic impactor |
| CN202733169U (en) * | 2012-08-13 | 2013-02-13 | 周升风 | Pneumatic tamping pipe hammer |
| CN204827221U (en) * | 2015-07-25 | 2015-12-02 | 湖南新金刚工程机械有限公司 | Novel valveless does not have pneumatic downhole air hammer of nylon tail pipe |
| CN108086899A (en) * | 2018-01-24 | 2018-05-29 | 长江大学 | One kind pneumatically rocks rock fracture in dynamic indentation boring bar tool |
Non-Patent Citations (2)
| Title |
|---|
| 刘治峰: "《开挖钻工》", 31 January 1997, 黄河水利出版社 * |
| 胡郁乐 张惠等编著: "《深部地热钻井与成井技术》", 31 October 2013, 中国地质大学出版社有限责任公司 * |
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Application publication date: 20200505 |
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