CN111515615B - Interference bolt cold charging device - Google Patents
Interference bolt cold charging device Download PDFInfo
- Publication number
- CN111515615B CN111515615B CN202010343274.6A CN202010343274A CN111515615B CN 111515615 B CN111515615 B CN 111515615B CN 202010343274 A CN202010343274 A CN 202010343274A CN 111515615 B CN111515615 B CN 111515615B
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- handle
- key
- control module
- pipe
- fixedly connected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a cold charging device, in particular to an interference bolt cold charging device. The technical problem to be solved is to provide an interference bolt cold-charging device which is convenient for people to operate without wearing gloves. An interference bolt cold-charging device comprises a handle, a percussion drill and the like; the handle is provided with a percussion drill. According to the invention, the interference bolt can be sucked by the grabbing mechanism, and the impact drill can enable people to easily insert the interference bolt into a proper position, so that the installation of the interference bolt can be completed without wearing gloves, and the operation of people can be facilitated; the interference bolt can be clamped through the locking mechanism, so that the interference bolt is prevented from falling off; the water mist generated by the liquid nitrogen can be blocked by the protection mechanism, so that the water mist generated by the liquid nitrogen is prevented from floating to the hands of people.
Description
Technical Field
The invention relates to a cold charging device, in particular to an interference bolt cold charging device.
Background
The interference bolt is a common connecting part, can bear larger axial force, torque and dynamic load through interference fit, does not damage the strength and precision of parts during installation, is widely applied to assembly of large machinery, such as installation of rudder blades, and is mainly installed by adopting a cold-fitting method.
When the interference bolt is installed, the interference bolt is firstly placed in a liquid nitrogen tank to be cooled, so that the interference bolt is contracted, then the cooled interference bolt is taken out by wearing gloves and is inserted into a bolt hole, hands of people are too fat when the gloves are worn, and the operation of people is not flexible enough and the people are inconvenient to work.
A device which is convenient for people to operate without wearing gloves is designed to solve the existing problems.
Disclosure of Invention
In order to overcome the defects that the hands of people are too bulky when the people wear gloves to work, the operation of the people is not flexible enough, and the work of the people is inconvenient, the technical problem to be solved is as follows: the interference bolt cold filling device is convenient for people to operate without wearing gloves.
The technical scheme of the invention is as follows: an interference bolt cold loader comprises a handle, wherein a percussion drill is arranged on the handle; the protection plate is fixedly connected to the side surface of the impact drill; the connecting sleeve is arranged on the output end of the percussion drill and is in contact with the protection plate; the connecting block is fixedly connected to the protection plate on one side far away from the handle; and the grabbing mechanism is arranged on the impact drill and used for grabbing the interference bolt.
In a preferred embodiment of the present invention, the portable electronic device further comprises a control module, an extending key and a retracting key, wherein the extending key and the retracting key are respectively arranged on two sides of the handle, and the extending key and the retracting key are electrically connected with the control module.
In a preferred embodiment of the invention, the grabbing mechanism comprises an electric push rod, a guide pipe, a first spring, a fixed disc, a rubidium magnet, a sliding sleeve and a fixed pipe, the electric push rod is bolted on the upper side of the percussion drill, the guide pipe is sleeved on a telescopic rod of the electric push rod, the fixed disc is fixedly connected to the end part of the guide pipe, the first spring is connected between the fixed disc and the telescopic rod of the electric push rod, the rubidium magnet is embedded on the fixed disc on the side far away from the first spring, the sliding sleeve is slidably sleeved on the guide pipe, the fixed pipe is fixedly sleeved on the outer side of the sliding sleeve, and the fixed pipe is fixedly connected with the connecting block.
In a preferred embodiment of the invention, the locking mechanism further comprises a locking mechanism, the locking mechanism comprises a baffle pipe, a conical shell, a locking key, a baffle ring, a second spring, a toothed plate, balls, a bevel ring and a magnet ring, the baffle pipe is slidably sleeved on the guide pipe at the side far away from the sliding sleeve, the second spring is wound on the telescopic rod of the electric push rod, one end of the second spring is connected with the baffle pipe, the other end of the second spring is connected with the electric push rod, the baffle ring is fixedly sleeved outside the telescopic rod of the electric push rod, the locking key is arranged on the handle, the locking key is positioned between the extending key and the retracting key, the conical shell is fixedly sleeved outside the baffle pipe, the fixing pipe is positioned in the conical shell, the magnet ring is fixedly connected inside the conical shell, at least two toothed plates for clamping interference bolts are arranged in the magnet ring, and the balls for reducing friction are arranged outside the toothed plates, and the bevel ring for pushing the ball is fixedly connected to the end part of the conical shell, and the ball is contacted with the bevel ring.
In a preferred embodiment of the present invention, the present invention further comprises a limiting mechanism, the limiting mechanism comprises a guide sleeve, a nut, a screw, a guide rod and a baffle, the guide sleeve is fixedly connected to the upper side of the bevel ring, the guide rod is slidably connected in the guide sleeve in a penetrating manner, the baffle is fixedly connected to the end of the guide rod, the nut is fixedly connected on the guide sleeve in a penetrating manner, and the screw for fixing the guide rod is arranged in the nut.
In a preferred embodiment of the present invention, the device further comprises a protection mechanism, the protection mechanism comprises an arc-shaped plate and a fixing frame, the arc-shaped plate for protection is fixedly connected to the percussion drill near one side of the handle, and the fixing frame is fixedly connected between the arc-shaped plate and the handle.
In a preferred embodiment of the invention, the electric shock hammer further comprises a control box, the end part of the handle is fixedly connected with the control box, the control module is installed in the control box, the control box comprises a switching power supply and a power supply module, the power supply module is connected with a power supply main switch through a circuit, the output end of the switching power supply is electrically connected with the power supply module, the control module is electrically connected with the power supply module, the switching power supply supplies power for the whole electric shock hammer, the control module is connected with a DS1302 clock circuit and a 24C02 circuit, the percussion drill and the electric push rod are both connected with the control module through a peripheral circuit, and the locking key is electrically connected with the control module.
The invention has the beneficial effects that:
1. can hold the interference bolt through snatching the mechanism, strike and bore and can make people more relaxed and insert suitable position with the interference bolt, so need not wear gloves and can accomplish the installation of interference bolt to can make things convenient for people to operate.
2. The interference bolt can be clamped through the locking mechanism, and the interference bolt is prevented from falling off.
3. The depth of the interference bolt inserted into the bolt hole can be adjusted through the limiting mechanism, and the interference bolt is prevented from being inserted too deeply.
4. The water mist generated by the liquid nitrogen can be blocked by the protection mechanism, so that the water mist generated by the liquid nitrogen is prevented from floating to the hands of people.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the grasping mechanism of the present invention.
Fig. 3 is a perspective view of the locking mechanism of the present invention.
Fig. 4 is a partial perspective view of the present invention.
Fig. 5 is a schematic perspective view of the limiting mechanism of the present invention.
FIG. 6 is a block diagram of the circuit of the present invention.
Fig. 7 is a schematic circuit diagram of the present invention.
Wherein the figures include the following reference numerals: 1. the device comprises a handle, 2, a control box, 3, an extending key, 4, a retracting key, 51, a percussion drill, 52, a protective plate, 53, a connecting sleeve, 54, a connecting block, 6, a grabbing mechanism, 61, an electric push rod, 62, a guide pipe, 63, a first spring, 64, a fixed disc, 65, a rubidium magnet, 66, a sliding sleeve, 67, a fixed pipe, 7, a locking mechanism, 71, a baffle pipe, 72, a conical shell, 73, a locking key, 74, a baffle ring, 75, a second spring, 76, a toothed plate, 77, a ball, 78, a bevel ring, 79, a magnet ring, 8, a limiting mechanism, 81, a guide sleeve, 82, a nut, 83, a screw rod, 84, a guide rod, 85, a baffle plate, 9, a protective mechanism, 91, an arc plate, 92 and a fixed frame.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.
Embodiment mode 1
An interference bolt cold charging device is shown in figures 1-3 and comprises a handle 1, an impact drill 51, a protection plate 52, a connecting sleeve 53, a connecting block 54 and a grabbing mechanism 6, wherein the impact drill 51 is mounted at the top end of the handle 1 through a bolt, the protection plate 52 is connected to the lower portion of the left side of the impact drill 51, the protection plate 52 is obliquely arranged, the connecting sleeve 53 is mounted at the output end of the impact drill 51, the connecting sleeve 53 is in contact with the protection plate 52, the connecting block 54 is connected to the left side of the top of the protection plate 52, and the grabbing mechanism 6 is mounted at the.
Still including control module, stretch out key 3 and withdrawal key 4, 1 right side upper portion of handle is equipped with and stretches out key 3, and 1 left side upper portion of handle is equipped with withdrawal key 4, stretches out key 3 and withdrawal key 4 and all passes through electric connection with control module.
People press a power supply main switch to electrify the device, then hold a handle 1 to press an extension key 3, the extension key 3 sends a signal, a control module receives the signal and controls a grabbing mechanism 6 to work for 4 seconds, the grabbing mechanism 6 extends outwards, after 4 seconds, the control module controls the grabbing mechanism 6 to stop working, people suck interference bolts through the grabbing mechanism 6, after the interference bolts are sucked, people press a retraction key 4 and send a signal through the retraction key 4, after the control module receives the signal, the grabbing mechanism 6 is controlled to work for 4 seconds, the grabbing mechanism 6 retracts inwards, after 4 seconds, the control module controls the grabbing mechanism 6 to stop working, people can insert the sucked interference bolts into bolt holes, then press the retraction key 4 and send a signal through the retraction key 4, after the control module receives the signal, the control module controls a percussion drill 51 to work, the percussion drill 51 drives a connecting sleeve 53 to move left and right, and the grabbing mechanism 6 is driven by a connecting block 54 to move left and right, thereby can drive the interference bolt and remove about for people can be more relaxed insert the suitable position with the interference bolt, so need not wear gloves and can accomplish the installation of interference bolt, thereby can make things convenient for people to operate. When the interference bolt is inserted to a proper position, people loosen the retraction key 4, the retraction key 4 sends a signal, the control module controls the impact drill 51 to stop working after receiving the signal, and then the power main switch is pressed down again to cut off the power of the device.
People hold the handle 1 to press the extension key 3, the extension key 3 sends a signal, the control module receives the signal and controls the electric push rod 61 to extend for 4 seconds, the electric push rod 61 drives the fixing disc 64 to move leftwards through the first spring 63 so as to drive the rubidium magnet 65 to move leftwards, after 4 seconds, the control module controls the electric push rod 61 to stop extending, people can suck the interference bolt through the rubidium magnet 65, after the suction, people press the retraction key 4 to send a signal, the control module receives the signal and controls the electric push rod 61 to shorten for 4 seconds, the electric push rod 61 drives the rubidium magnet 65 to move rightwards so as to drive the interference bolt to move rightwards, the interference bolt moves into the fixing tube 67, after 4 seconds, the control module controls the electric push rod 61 to stop shortening, people insert the sucked interference bolt into the bolt hole again, then press the retraction key 4, the retraction key 4 sends a signal, the control module receives the signal and then controls the percussion drill 51 to work, the percussion drill 51 drives the fixed pipe 67 to move left and right through the connecting block 54, so that the sliding sleeve 66 is driven to move left and right, the sliding sleeve 66 continuously pushes the fixed disc 64, the fixed disc 64 moves left and right under the action of the first spring 63, the interference bolt moves left and right, and people can insert the interference bolt into a proper position more easily. When the interference bolt is inserted into a proper position, people loosen the retraction key 4, the retraction key 4 sends a signal, and the control module controls the percussion drill 51 to stop working after receiving the signal.
On the basis of the embodiment 1, referring to fig. 1-5, the locking device 7 further comprises a locking mechanism 7, the locking mechanism 7 comprises a blocking tube 71, a conical shell 72, a locking key 73, a blocking ring 74, a second spring 75, a toothed plate 76, a ball 77, a bevel ring 78 and a magnet ring 79, the blocking tube 71 is slidably arranged at the right part of the guide tube 62, the second spring 75 is wound on the telescopic rod of the electric push rod 61, the left end of the second spring 75 is connected with the blocking tube 71, the right end of the second spring 75 is connected with the electric push rod 61, the blocking ring 74 is connected at the right part of the telescopic rod of the electric push rod 61, the locking key 73 is arranged at the upper part of the front side of the handle 1, the conical shell 72 is connected to the outer side of the blocking tube 71, the fixing tube 67 is located in the conical shell 72, the magnet ring 79 is connected at the left part in the conical shell 72, the two toothed plates 76 are arranged at the upper and lower sides in the, the two toothed plates 76 respectively penetrate through the two openings, the top of the toothed plate 76 above is provided with a ball 77, the bottom of the toothed plate 76 below is also provided with the ball 77, the left end of the conical shell 72 is connected with a bevel ring 78, and the ball 77 is in contact with the inner wall of the bevel ring 78.
The device is characterized by further comprising a limiting mechanism 8, wherein the limiting mechanism 8 comprises a guide sleeve 81, a nut 82, a screw 83, a guide rod 84 and a baffle 85, the top of the bevel ring 78 is connected with the guide sleeve 81, the guide rod 84 is arranged in the guide sleeve 81 in a sliding mode, the left end of the guide rod 84 is connected with the baffle 85, the nut 82 is connected to the right side of the top of the guide sleeve 81 in an embedded mode, and the screw 83 in a T shape is screwed in the nut 82.
Still including protection machanism 9, protection machanism 9 is including arc 91 and mount 92, and the churn drill 51 bottom is connected with arc 91, and arc 91 right side sub-unit connection has mount 92, and mount 92 is the tilting setting, and the right lower extreme of mount 92 is connected with handle 1 left side.
After the electric push rod 61 drives the rubidium magnet 65 to move rightwards into the fixed tube 67, people press the locking key 73, the locking key 73 sends a signal, the control module receives the signal and then controls the electric push rod 61 to shorten for 1 second, the first spring 63 is stretched, the electric push rod 61 drives the baffle ring 74 to move rightwards, so that the baffle tube 71 and the conical shell 72 are driven to move rightwards, the second spring 75 is compressed, the conical shell 72 drives the bevel ring 78 to move rightwards, the bevel ring 78 pushes the balls 77 to move inwards, the toothed plate 76 moves inwards along with the balls, the toothed plate 76 and the magnet ring 79 fall off, after 1 second, the control module controls the electric push rod 61 to stop shortening, at the moment, the toothed plate 76 just clamps the interference bolt, and the interference bolt is prevented from falling off the rubidium magnet 65 when moving leftwards. When the interference bolt is inserted into a proper position, people press the locking key 73 for three seconds, the locking key 73 sends a signal, the control module receives the signal and then controls the electric push rod 61 to extend for 1 second, the first spring 63 recovers the original state, the electric push rod 61 drives the baffle ring 74 to move leftwards, under the action of the second spring 75, the baffle pipe 71 moves leftwards, the bevel ring 78 moves leftwards along with the baffle ring, the magnet ring 79 can suck the toothed plate 76 back to the original position, and after 1 second, the control module controls the electric push rod 61 to stop extending.
People unscrew the screw 83, loosen the guide rod 84, then adjust the position of the baffle 85 through moving the guide rod 84, so that the depth of the interference bolt inserted into the bolt hole can be adjusted, the interference bolt is prevented from being inserted too deeply, and after the position of the baffle 85 is adjusted, people screw down the screw 83 to fix the guide rod 84.
The arc-shaped plate 91 can block water mist generated by the liquid nitrogen, so that the water mist generated by the liquid nitrogen is prevented from floating to hands of people.
Referring to fig. 6-7, the electric shock hammer further comprises a control box 2, the control box 2 is connected to the bottom end of the handle 1, the control module is installed in the control box 2, a switching power supply and a power supply module are included in the control box 2, a power supply main switch is connected to the power supply module through a circuit, the output end of the switching power supply is electrically connected with the power supply module, the control module is electrically connected with the power supply module, the switching power supply supplies power for the whole electric shock hammer, the control module is connected with a DS1302 clock circuit and a 24C02 circuit, the percussion drill 51 and the electric push rod 61 are connected with the control module through peripheral circuits, and the locking key 73 is electrically connected with the control module.
The present application is described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (4)
1. An interference bolt cold loader, comprising:
a handle on which a hammer drill is mounted;
the protection plate is fixedly connected to the side surface of the impact drill;
the connecting sleeve is arranged on the output end of the percussion drill and is in contact with the protection plate;
the connecting block is fixedly connected to the protection plate on one side far away from the handle;
the grabbing mechanism is arranged on the impact drill and used for grabbing the interference bolt;
the handle is characterized by also comprising a control module, an extending key and a retracting key, wherein the extending key and the retracting key are respectively arranged on two sides of the handle and are electrically connected with the control module;
the grabbing mechanism comprises an electric push rod, a guide pipe, a first spring, a fixed disc, a rubidium magnet, a sliding sleeve and a fixed pipe, the electric push rod is bolted on the upper side of the percussion drill, the guide pipe is sleeved on a telescopic rod of the electric push rod, the fixed disc is fixedly connected to the end part of the guide pipe, the first spring is connected between the fixed disc and the telescopic rod of the electric push rod, the rubidium magnet is installed on the fixed disc on one side, away from the first spring, in an embedded mode, the sliding sleeve is sleeved on the guide pipe in a sliding mode, the fixed pipe is fixedly connected to the outer side of the sliding sleeve in a sleeved mode, and;
the locking mechanism comprises a blocking pipe, a conical shell, a locking key, a blocking ring, a second spring, a toothed plate, balls, a bevel ring and a magnet ring, the blocking pipe is sleeved on the guide pipe far away from one side of the sliding sleeve in a sliding manner, the second spring is wound on a telescopic rod of an electric push rod, one end of the second spring is connected with the blocking pipe, the other end of the second spring is connected with the electric push rod, the blocking ring is fixedly sleeved on the outer side of the telescopic rod of the electric push rod, the locking key is arranged on the handle and positioned between an extending key and a retracting key, the conical shell is fixedly sleeved on the outer side of the blocking pipe, the fixing pipe is positioned in the conical shell, the magnet ring is fixedly connected on the inner side of the conical shell, at least two toothed plates used for clamping interference bolts are arranged in the magnet ring, balls used for reducing friction force are arranged on the outer side of the toothed plate and used for pushing the bevel ring of the balls to be fixed at the end, the ball is in contact with the bezel ring.
2. An interference bolt cold loader as claimed in claim 1, wherein: the guide rod is connected with the upper side of the bevel ring in a sliding and penetrating mode, the baffle is fixedly connected to the end portion of the guide rod, the nut is fixedly connected onto the guide sleeve in a penetrating mode, and the screw rod used for fixing the guide rod is arranged in the nut.
3. An interference bolt cold loader as claimed in claim 2, wherein: the protective mechanism comprises an arc-shaped plate and a fixing frame, the arc-shaped plate is fixedly connected to the impact drill on one side of the handle and plays a role in protection, and the fixing frame is fixedly connected between the arc-shaped plate and the handle.
4. An interference bolt cold loader as claimed in claim 3, wherein: still including the control box, the tip rigid coupling of handle has the control box, control module installs in the control box, including switching power supply and power module in the control box, there is the power master switch through the line connection on the power module, switching power supply's output and power module pass through electric connection, control module and power module pass through electric connection, switching power supply is the power supply of whole device, last DS1302 clock circuit and the 24C02 circuit of being connected with of control module, the percussion drill passes through peripheral circuit with control module with electric putter and is connected, locking key and control module pass through electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010343274.6A CN111515615B (en) | 2020-04-27 | 2020-04-27 | Interference bolt cold charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010343274.6A CN111515615B (en) | 2020-04-27 | 2020-04-27 | Interference bolt cold charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111515615A CN111515615A (en) | 2020-08-11 |
| CN111515615B true CN111515615B (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010343274.6A Active CN111515615B (en) | 2020-04-27 | 2020-04-27 | Interference bolt cold charging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111515615B (en) |
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| EP0759341A2 (en) * | 1995-08-18 | 1997-02-26 | Makita Corporation | Hammer drill with an idling strike prevention mechanism |
| JP2003245872A (en) * | 2002-02-22 | 2003-09-02 | Makita Corp | Hammer drill |
| CN1792562A (en) * | 2004-12-23 | 2006-06-28 | 百得有限公司 | Cooling mechanism for a power tool |
| CN201833365U (en) * | 2010-09-10 | 2011-05-18 | 德清县欣勤电子有限公司 | Magnet telescopic rod |
| CN102198662A (en) * | 2011-05-25 | 2011-09-28 | 中国华录·松下电子信息有限公司 | Magnetic attraction type piece extracting device |
| CN103203757A (en) * | 2012-01-12 | 2013-07-17 | 上海京美电脑机械有限公司 | Electromagnetic type gripping mechanism |
| CN205614605U (en) * | 2016-05-10 | 2016-10-05 | 中铁十四局集团电气化工程有限公司 | Expandable rock bolt ties installation device |
| CN207480624U (en) * | 2017-10-19 | 2018-06-12 | 中国计量大学 | A kind of electromagnet draws the elastic device of bearing |
| CN108818366A (en) * | 2018-06-19 | 2018-11-16 | 中航飞机起落架有限责任公司 | A kind of bushing positioning and clamping mechanism |
| CN208628494U (en) * | 2018-07-09 | 2019-03-22 | 浙江明磊工具实业有限公司 | A kind of impact drill with fixture |
| CN110860371A (en) * | 2019-11-26 | 2020-03-06 | 南京沃特电机有限公司 | Magnetic material collector |
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2020
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0759341A2 (en) * | 1995-08-18 | 1997-02-26 | Makita Corporation | Hammer drill with an idling strike prevention mechanism |
| JP2003245872A (en) * | 2002-02-22 | 2003-09-02 | Makita Corp | Hammer drill |
| CN1792562A (en) * | 2004-12-23 | 2006-06-28 | 百得有限公司 | Cooling mechanism for a power tool |
| CN201833365U (en) * | 2010-09-10 | 2011-05-18 | 德清县欣勤电子有限公司 | Magnet telescopic rod |
| CN102198662A (en) * | 2011-05-25 | 2011-09-28 | 中国华录·松下电子信息有限公司 | Magnetic attraction type piece extracting device |
| CN103203757A (en) * | 2012-01-12 | 2013-07-17 | 上海京美电脑机械有限公司 | Electromagnetic type gripping mechanism |
| CN205614605U (en) * | 2016-05-10 | 2016-10-05 | 中铁十四局集团电气化工程有限公司 | Expandable rock bolt ties installation device |
| CN207480624U (en) * | 2017-10-19 | 2018-06-12 | 中国计量大学 | A kind of electromagnet draws the elastic device of bearing |
| CN108818366A (en) * | 2018-06-19 | 2018-11-16 | 中航飞机起落架有限责任公司 | A kind of bushing positioning and clamping mechanism |
| CN208628494U (en) * | 2018-07-09 | 2019-03-22 | 浙江明磊工具实业有限公司 | A kind of impact drill with fixture |
| CN110860371A (en) * | 2019-11-26 | 2020-03-06 | 南京沃特电机有限公司 | Magnetic material collector |
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| CN111515615A (en) | 2020-08-11 |
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Inventor after: Wang Awei Inventor before: Liu Yaxin |
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Effective date of registration: 20221110 Address after: 276000 208, East Second floor, Pingyi County Economic Development Zone Management Committee, Linyi City, Shandong Province Patentee after: Pingyi Jingfa Technology Service Co.,Ltd. Address before: 511300 Room 301, building B, 1202 Minle Road, Licheng street, Zengcheng District, Guangzhou City, Guangdong Province Patentee before: Liu Yaxin |