CN113090144B - Turnover door body lifting and hanging device based on electromagnet and mechanical equipment - Google Patents
Turnover door body lifting and hanging device based on electromagnet and mechanical equipment Download PDFInfo
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- CN113090144B CN113090144B CN201911335964.0A CN201911335964A CN113090144B CN 113090144 B CN113090144 B CN 113090144B CN 201911335964 A CN201911335964 A CN 201911335964A CN 113090144 B CN113090144 B CN 113090144B
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/56—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by magnetic or electromagnetic attraction or operated by electric or electromagnetic means
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/46—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means in which the wing or a member fixed thereon is engaged by a movable fastening member in a fixed position; in which a movable fastening member mounted on the wing engages a stationary member
- E05C17/52—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means in which the wing or a member fixed thereon is engaged by a movable fastening member in a fixed position; in which a movable fastening member mounted on the wing engages a stationary member comprising a snap, catch, or the like
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides an electromagnet-based turnover door body lifting and hanging device and mechanical equipment comprising the electromagnet-based turnover door body lifting and hanging device, and the mechanical equipment comprises a mounting seat fixedly connected with a rack body, wherein an electromagnet and a hook are arranged on the mounting seat, the hook can be movably switched between a hanging station and an avoiding station under the action of the electromagnet, a connecting hole is formed in a turnover door body, when the turnover door body needs to be hung, the hook is switched from the avoiding station to the hanging station under the action of the electromagnet, and hooks the turnover door body, so that the hook is hung on the connecting hole of the turnover door body, the turnover door body is firmly hung for a long time after being lifted, the potential safety hazard caused by the fault of a hydraulic system is effectively solved, meanwhile, the long-term stress of a turnover oil cylinder of the turnover door body is avoided, and the service life of the turnover door body is prolonged.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to an electromagnet-based turnover door body lifting and hanging device and mechanical equipment comprising the electromagnet-based turnover door body lifting and hanging device.
Background
Many mechanical equipment all have the upset door body that upwards overturn was opened, and when mechanical equipment normally worked, make the upset door body upwards open or close downwards through hydraulic system control upset hydro-cylinder, under some circumstances, need make the upset door body upwards open through hydraulic system control upset hydro-cylinder, rely on hydraulic system to make the upset door body hang in a certain position in the air. However, there is a certain safety hazard only depending on the hydraulic system, especially when the weight of the turnover door body is large, if the one-way electromagnetic stop valve or the electromagnetic directional valve of the hydraulic system suddenly fails, or the turnover oil cylinder slowly releases pressure, the turnover door body suddenly falls under the action of gravity, and the person may be injured or the equipment may be damaged.
Therefore, for those skilled in the art, it is of practical significance to provide an electromagnet-based lifting and hanging device for a turnover door body, which can firmly hang the turnover door body of a mechanical device for a long time after the turnover door body is lifted.
Disclosure of Invention
In view of the defects in the prior art, an object of the present invention is to provide an electromagnet-based lifting and hanging device for a swing door, which can firmly hang a swing door of a mechanical device for a long time after the swing door is lifted.
The invention also aims to provide mechanical equipment comprising the turnover door body lifting and hanging device based on the electromagnet.
In order to solve the above problems, in one aspect, the invention provides an overturning door body lifting and hanging device based on an electromagnet, which includes a rack body, wherein a doorway and an overturning door body matched with the doorway are arranged on the rack body, an overturning oil cylinder is arranged between the rack body and the overturning door body, and the overturning oil cylinder is used for driving the overturning door body to overturn upwards to open the doorway and driving the overturning door body to overturn downwards to close the doorway, and is characterized in that: still include the mount pad with frame body fixed connection, be provided with electro-magnet and couple on the mount pad, the couple can be under the effect of electro-magnet in the hanging up station with dodge the station between the activity switching, be equipped with the connecting hole on the upset door body the couple is in dodging the station, just upset hydro-cylinder drive the upset door body upwards overturns when predetermineeing the position, the couple can be partly unimpeded cross the connecting hole when the couple is in the hanging up station, the couple hooks the upset door body.
As a further improvement of the turnover door body lifting and hanging device based on the electromagnet, the hook comprises a rotating portion and a hook body portion, one end of the rotating portion is connected with one end of the hook body portion to form an L-shaped structure, the other end of the rotating portion is hinged to the mounting seat, the hook rotates around a hinged point to switch between a hanging station and an avoiding station, and when the hook is located on the hanging station, the rotating portion and the hook body portion of the hook are matched to hook the turnover door body.
As the above-mentioned overturning door body based on electro-magnet promotes hanging device's further improvement, be equipped with the mounting groove on the mount pad, electro-magnet and couple set up in the mounting groove, the position that the couple corresponds the electro-magnet is equipped with ferromagnetic substance when the electro-magnet circular telegram, can the actuation ferromagnetic substance makes the couple rotates and switches to hanging the station by dodging the station around the pin joint when the electro-magnet loses the electricity, the couple rotates and switches to dodging the station by hanging the station around the pin joint under the dead weight effect.
As a further improvement of the turnover door body lifting and hanging device based on the electromagnet, the turnover door body lifting and hanging device further comprises a storage battery, the fixed end of the mounting seat is fixedly connected with the rack body, and the suspended end of the mounting seat extends downwards in an inclined mode towards the direction far away from the rack body.
As a further improvement of the turnover door body lifting and hanging device based on the electromagnet, a mounting groove is formed in the free end of the mounting seat, the electromagnet is arranged on the upper wall surface of the mounting groove, one end of the hook is hinged to the mounting seat in the mounting groove, the other end of the hook extends out of the mounting groove, and when the hook is located at an avoidance station, the hook is abutted to the lower wall surface of the mounting groove.
As a further improvement of the turnover door body lifting and hanging device based on the electromagnet, the number of the installation seats with the electromagnet and the hook is two, and the installation seats are arranged on the left side and the right side of the turnover door body.
As a further improvement of the turnover door body lifting and hanging device based on the electromagnet, the cylinder end of the turnover oil cylinder is hinged to the rack body, and the cylinder rod end of the turnover oil cylinder is hinged to the turnover door body.
As a further improvement of the turnover door body lifting and hanging device based on the electromagnet, the number of the turnover oil cylinders is two, and the turnover oil cylinders are arranged on the left side and the right side of the turnover door body.
As a further improvement of the turnover door body lifting and hanging device based on the electromagnet, the mounting seat is connected with the rack body in a welding mode.
The overturning door body lifting and hanging device based on the electromagnet comprises a mounting seat fixedly connected with a rack body, wherein the mounting seat is provided with the electromagnet and a hook, the hook can be movably switched between a hanging station and an avoiding station under the action of the electromagnet, the overturning door body is provided with a connecting hole, when the overturning door body needs to be hung, the hook is switched to the hanging station from the avoiding station under the action of the electromagnet, the hook hooks the overturning door body, so that the hook is hung on the connecting hole of the overturning door body, the overturning door body is firmly hung for a long time after being lifted, potential safety hazards caused by faults of a hydraulic system are effectively solved, meanwhile, the overturning oil cylinder of the overturning door body is prevented from being stressed for a long time, and the service life of the overturning door body is prolonged.
In another aspect, the invention provides a mechanical device, which comprises the turnover door body lifting and hanging device based on the electromagnet according to any one of the above schemes.
Because this mechanical equipment includes foretell upset door body based on electro-magnet and promotes the device of hanging, therefore this mechanical equipment includes foretell upset door body based on electro-magnet and promotes whole technological effect of hanging the device, consequently no longer gives details.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
Fig. 1 is a schematic structural view of the turnover door body lifting and hanging device based on the electromagnet when a hook is positioned at an avoidance station.
Fig. 2 is a schematic structural diagram of the turnover door body lifting and hanging device based on the electromagnet when the hook is at a hanging station.
In the figure, 1-a frame body, 2-a turnover door body, 3-a turnover oil cylinder, 4-a mounting seat, 5-an electromagnet, 6-a hook, 7-a connecting hole and 8-a ferromagnetic substance.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to the drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
In the description of the present invention, it should be noted that the terms indicating orientation or positional relationship appearing are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and for simplicity of description, and do 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 should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and limited, the specific meanings of the above terms in the present invention can be specifically understood by those skilled in the art.
Please refer to fig. 1 to 2, a lifting and hanging device for a turnover door based on an electromagnet comprises a rack body 1, wherein the rack body 1 is provided with a doorway and a turnover door 2 adapted to the doorway, the turnover door 2 is rotatably connected with the rack body 1, a turnover oil cylinder 3 is arranged between the rack body 1 and the turnover door 2, and the turnover oil cylinder 3 is used for driving the turnover door 2 to turn upwards to open the doorway and driving the turnover door 2 to turn downwards to close the doorway.
Still include with 1 fixed connection's of frame body mount pad 4, be provided with electro-magnet 5 and couple 6 on the mount pad 4, couple 6 can be under the effect of electro-magnet 5 in hanging up the station and dodge between the station activity switch, be equipped with connecting hole 7 on the upset door body 2 couple 6 is in dodges the station, just 3 drives of upset hydro-cylinder 2 upwards overturn when predetermineeing the position, couple 6 can be partly unimpeded cross connecting hole 7 when couple 6 is in and hangs up the station, couple 6 hooks the upset door body 2.
The invention relates to an electromagnet-based lifting and hanging device for a turnover door body, which comprises a mounting seat 4 fixedly connected with a rack body 1, wherein an electromagnet 5 and a hook 6 are arranged on the mounting seat 4, the hook 6 can be movably switched between a hanging station and an avoiding station under the action of the electromagnet 5, a connecting hole 7 is arranged on the turnover door body 2, when the turnover door body 2 needs to be hung, the hook 6 is switched to the hanging station from the avoiding station under the action of the electromagnet 5, the hook 6 hooks the turnover door body 2, so that the hook 6 is hung on the connecting hole 7 of the turnover door body 2, the turnover door body 2 is firmly hung for a long time after being lifted, the potential safety hazard caused by the fault of a hydraulic system is effectively solved, meanwhile, the turnover oil cylinder 3 of the turnover door body 2 is prevented from being stressed for a long time, and the service life of the turnover oil cylinder is prolonged.
It is specific optional, couple 6 includes rotation portion and coupler body portion, the one end of rotation portion and the one end of coupler body portion link to each other and form L shape structure, the other end of rotation portion with mount pad 4 is articulated, couple 6 rotates around the pin joint in order to hang the station and dodge and switch between the station couple 6 is in when hanging the station, the rotation portion and the coupler body portion cooperation of couple 6 are hooked the upset door body 2.
For the convenience of setting electro-magnet 5 and couple 6, be equipped with the mounting groove on mount pad 4, electro-magnet 5 and couple 6 set up in the mounting groove, 6 positions that correspond electro-magnet 5 of couple are equipped with ferromagnetic substance 8, and ferromagnetic substance 8 is like metals such as iron, nickel, cobalt when electro-magnet 5 circular telegram, can the actuation ferromagnetic substance 8 makes 6 couples to rotate around the pin joint and switch over to the station of hanging by dodging the station when electro-magnet 5 loses the electricity, couple 6 rotates around the pin joint under the dead weight effect and switches over to dodging the station by hanging the station.
It is specific optional, the stiff end and the frame body 1 fixed connection of mount pad 4, the unsettled end of mount pad 4 extends downwards towards the direction slope of keeping away from frame body 1. The free end of mount pad 4 sets up the mounting groove, electro-magnet 5 is established on the last wall of mounting groove, the one end of couple 6 in the mounting groove with mount pad 4 is articulated, the other end of couple 6 stretches out the mounting groove couple 6 is in when dodging the station, couple 6 with the lower wall butt of mounting groove.
In order to further ensure the hanging firmness of the turnover door body 2, the number of the installation seats 4 with the electromagnets 5 and the hooks 6 is two, and the installation seats are arranged on the left side and the right side of the turnover door body 2, and correspondingly, the number of the connection holes 7 is also two. Specifically, optionally, a cylinder end of the turnover oil cylinder 3 is hinged to the rack body 1, and a cylinder rod end of the turnover oil cylinder 3 is hinged to the turnover door body 2. The number of the turnover oil cylinders 3 is two, and the turnover oil cylinders are arranged on the left side and the right side of the turnover door body 2. The mounting seat 4 is connected with the rack body 1 in a welding mode.
In order to realize intelligent control, the device also comprises a controller, a detector and a power supply device, wherein the detector, the power supply device, the overturning oil cylinder 3 and the electromagnet 5 are respectively connected with the controller, the detector is used for detecting the working state of the turnover oil cylinder 3, such as a displacement sensor and a pressure sensor, when the overturning oil cylinder 3 is detected to drive the overturning door body 2 to overturn upwards to a preset position, the controller controls the electromagnet 5 to be electrified, attracts the ferromagnetic substance 8 to enable the hook 6 to rotate around a hinge point and switch from an avoiding station to a hanging station, when the doorway needs to be closed, the controller receives an external control instruction to control the electromagnet 5 to lose power, the hook 6 rotates around a hinge point under the action of self weight and is switched from a hanging station to an avoiding station, then the turnover oil cylinder 3 acts to drive the turnover door body 2 to turn downwards to close the doorway. The controller can be a single chip microcomputer or a PLC programmable controller, the storage battery is a maintenance-free storage battery, the maintenance-free storage battery adopts a lead-calcium alloy grid frame, the water decomposition amount generated during charging is small, the water evaporation amount is low, and in addition, the shell adopts a sealing structure, and the released sulfuric acid gas is also little, so that compared with the traditional storage battery, the storage battery has the advantages of no need of adding any liquid, less corrosion to a wiring pile head and a wire, strong overcharge resistance, large starting current, long electric quantity storage time and the like.
In summary, the turning door body lifting and hanging device based on the electromagnet comprises an installation seat 4 fixedly connected with a rack body 1, wherein the installation seat 4 is provided with the electromagnet 5 and a hook 6, the hook 6 can be movably switched between a hanging station and an avoiding station under the action of the electromagnet 5, the turning door body 2 is provided with a connecting hole 7, when the turning door body 2 needs to be hung, the hook 6 is switched to the hanging station from the avoiding station under the action of the electromagnet 5, the hook 6 hooks the turning door body 2, so that the hook 6 is hung on the connecting hole 7 of the turning door body 2, the turning door body 2 is firmly hung for a long time after being lifted, the potential safety hazard caused by the fault of a hydraulic system is effectively solved, meanwhile, the long-term stress of a turning oil cylinder 3 of the turning door body 2 is avoided, and the service life of the turning door body is prolonged.
In another aspect, the present invention provides a mechanical apparatus, where the mechanical apparatus includes the above-mentioned turnover door body lifting and hanging device based on an electromagnet according to any one of the above-mentioned embodiments, and since the mechanical apparatus includes the above-mentioned turnover door body lifting and hanging device based on an electromagnet, the mechanical apparatus includes all the technical effects of the above-mentioned turnover door body lifting and hanging device based on an electromagnet, which are not described herein again.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a turnover door body promotes hanging device based on electro-magnet, includes frame body (1), be equipped with the gate on frame body (1) and with the turnover door body (2) of gate adaptation, be equipped with upset hydro-cylinder (3) between frame body (1) and the turnover door body (2), upset hydro-cylinder (3) are used for the drive the turnover door body (2) upwards overturn in order to open gate and drive the turnover door body (2) overturn downwards in order to close the gate, its characterized in that: the turning door body is characterized by further comprising a mounting seat (4) fixedly connected with the rack body (1), an electromagnet (5) and a hook (6) are arranged on the mounting seat (4), the hook (6) can be movably switched between a hanging station and an avoiding station under the action of the electromagnet (5), a connecting hole (7) is formed in the turning door body (2), the hook (6) is located at the avoiding station, when the turning oil cylinder (3) drives the turning door body (2) to upwards turn to a preset position, the hook (6) can partially pass over the connecting hole (7) without obstruction, and when the hook (6) is located at the hanging station, the hook (6) hooks the turning door body (2);
still include controller, detector, power supply unit, upset hydro-cylinder (3), electro-magnet (5) respectively with the controller is connected, the detector is used for detecting the operating condition of upset hydro-cylinder (3), when detecting upset hydro-cylinder (3) drive the upset door body (2) upwards overturn to when predetermineeing the position, the controller control electro-magnet (5) are electrified, and actuation ferromagnetism material (8) make couple (6) are rotated around the pin joint and are switched to the station of hanging up by dodging the station, when the gate is closed to needs, the controller receives external control instruction, control electro-magnet (5) lose the electricity, couple (6) are rotated around the pin joint under the dead weight effect and are switched to dodging the station by hanging up the station.
2. The electromagnet-based overhead hoist for a swing door according to claim 1, wherein: couple (6) are including rotation portion and coupler body portion, the one end of rotation portion and the one end of coupler body portion link to each other and form L shape structure, the other end of rotation portion with mount pad (4) are articulated, couple (6) rotate around the pin joint in order to hang the station and dodge and switch between the station couple (6) when being in and hang the station, the rotation portion and the cooperation of coupler body portion of couple (6) are hooked the turnover door body (2).
3. The electromagnet-based overhead hoist for a swing door according to claim 2, wherein: be equipped with the mounting groove on mount pad (4), electro-magnet (5) and couple (6) set up in the mounting groove, the position that couple (6) correspond electro-magnet (5) is equipped with ferromagnetic substance (8) when electro-magnet (5) circular telegram, can the actuation ferromagnetic substance (8) make couple (6) rotate around the pin joint and switch over to hanging up the station by dodging the station electro-magnet (5) when losing the electricity, couple (6) rotate around the pin joint under the dead weight effect and switch over to dodging the station by hanging up the station.
4. The electromagnet-based overhead door body lifting and hanging device according to claim 1, wherein: the stiff end and frame body (1) fixed connection of mount pad (4), the unsettled end of mount pad (4) is towards the direction slope downwardly extending of keeping away from frame body (1).
5. The electromagnet-based overhead hoist for a swing door according to claim 4, wherein: the hanging end of mount pad (4) sets up the mounting groove, establish electro-magnet (5) on the last wall of mounting groove, the one end of couple (6) in the mounting groove with mount pad (4) are articulated, the other end of couple (6) stretches out the mounting groove couple (6) when avoiding the station, couple (6) with the lower wall butt of mounting groove.
6. The electromagnet-based overhead door lifting and hanging device according to any one of claims 1-5, wherein: the quantity of the installation seats (4) with the electromagnets (5) and the hooks (6) is two, and the installation seats are arranged on the left side and the right side of the turnover door body (2).
7. The electromagnet-based overhead hoist for a swing door according to any one of claims 1 to 5, wherein: the end of the cylinder barrel of the overturning oil cylinder (3) is hinged to the rack body (1), and the end of the cylinder rod of the overturning oil cylinder (3) is hinged to the overturning door body (2).
8. The electromagnet-based overhead hoist for a swing door according to any one of claims 1 to 5, wherein: the number of the turnover oil cylinders (3) is two, and the turnover oil cylinders are arranged on the left side and the right side of the turnover door body (2).
9. The electromagnet-based overhead door lifting and hanging device according to any one of claims 1-5, wherein: the mounting seat (4) is connected with the rack body (1) in a welding mode.
10. A mechanical device, characterized by: comprising an electromagnet based roll-over door body lifting and hanging device according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335964.0A CN113090144B (en) | 2019-12-23 | 2019-12-23 | Turnover door body lifting and hanging device based on electromagnet and mechanical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335964.0A CN113090144B (en) | 2019-12-23 | 2019-12-23 | Turnover door body lifting and hanging device based on electromagnet and mechanical equipment |
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| Publication Number | Publication Date |
|---|---|
| CN113090144A CN113090144A (en) | 2021-07-09 |
| CN113090144B true CN113090144B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911335964.0A Active CN113090144B (en) | 2019-12-23 | 2019-12-23 | Turnover door body lifting and hanging device based on electromagnet and mechanical equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6857678B2 (en) * | 2003-01-29 | 2005-02-22 | Lisk, Iii Stanton E. | Tailgate adjustment apparatus |
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|---|---|---|---|---|
| CN1162539A (en) * | 1996-04-18 | 1997-10-22 | 泷源制造株式会社 | Fixing assembly for rear door of truck |
| CN201334819Y (en) * | 2008-12-19 | 2009-10-28 | 江苏捷诚车载电子信息工程有限公司 | Door and window locking catch |
| CN101649750A (en) * | 2009-09-03 | 2010-02-17 | 翟德海 | Full-automatic waterproof gate of mine belt roadway |
| CN206562890U (en) * | 2017-03-18 | 2017-10-17 | 江阴市博诚节能建材有限公司 | Shutter |
| CN107605220A (en) * | 2017-09-08 | 2018-01-19 | 陕西科技大学 | A kind of anti-fall hook of carbarn |
| CN109972887A (en) * | 2019-04-10 | 2019-07-05 | 庞连宝 | A kind of intelligent garage disengaging detection alarm system |
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| CN113090144A (en) | 2021-07-09 |
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Address after: 414005 Kangfu Road, industrial park, Junshan District, Yueyang City, Hunan Province Patentee after: Hunan Yongjin Magnetic Equipment Co.,Ltd. Address before: 414000 Junshan Industrial Park, Kangfu Road, Junshan District, Yueyang City, Hunan Province Patentee before: YUEYANG YONGJIN LIFTING PERMANENT MAGNET Co.,Ltd. |
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Application publication date: 20210709 Assignee: Yueyang Cidu Electromagnetic Technology Co.,Ltd. Assignor: Hunan Yongjin Magnetic Equipment Co.,Ltd. Contract record no.: X2023980043489 Denomination of invention: A lifting device and mechanical equipment for flipping door body based on electromagnet Granted publication date: 20220712 License type: Common License Record date: 20231018 |
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