CN109179137B - Mechanical elevator acceleration detection device - Google Patents
Mechanical elevator acceleration detection device Download PDFInfo
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- CN109179137B CN109179137B CN201811293667.XA CN201811293667A CN109179137B CN 109179137 B CN109179137 B CN 109179137B CN 201811293667 A CN201811293667 A CN 201811293667A CN 109179137 B CN109179137 B CN 109179137B
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- 230000001133 acceleration Effects 0.000 title claims abstract description 108
- 238000001514 detection method Methods 0.000 title claims abstract description 47
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
A mechanical elevator acceleration detection device, comprising: the mounting cylinder is a cylindrical hollow inner cylinder; the inertia block is a cylindrical metal block arranged in the mounting cylinder, and the excircle of the inertia block is in clearance fit with the inner hole of the mounting cylinder; the upper sealing cover is plugged at the upper end of the mounting cylinder; the lower sealing cover is sealed and plugged at the lower end of the mounting cylinder; a first acceleration detection assembly is arranged between the inertia block and the upper sealing cover in the mounting cylinder; and a second acceleration detection assembly is arranged between the inertia block and the lower sealing cover in the mounting cylinder. The first acceleration detection assembly comprises a first buffer spring group and a first acceleration feedback assembly which are arranged between the upper bottom surface of the inertia block and the inner surface of the upper cover. The second acceleration detection assembly comprises a second buffer spring group and a second acceleration feedback assembly which are arranged between the lower bottom surface of the inertia block and the inner surface of the lower cover.
Description
Technical Field
The invention relates to the field of elevator safety prevention devices, in particular to a mechanical elevator acceleration detection device.
Background
With the rapid development of economic society and the increase of urban population density, high-rise buildings are increased rapidly, so that the safety of elevators of the high-rise buildings is concerned by all parties increasingly. In recent years, casualty accidents caused by uncontrolled falling of elevators are frequent, and cause little shadow to public psychology.
In the case of stalling, falling or overspeed top rushing of an elevator installed in a current high-rise building, no speed reducer is arranged in the falling or top rushing process, the elevator car can generate great kinetic energy at the moment of sitting at the bottom or top rushing under the action of gravitational acceleration or excess traction force, and the kinetic potential energy is difficult to be completely buffered and released by a buffer device at the bottom of a pit, which is an important reason for finally causing great personnel and property loss.
Therefore, more and more elevator manufacturers install acceleration detection devices on elevator cars to detect and prevent the acceleration of elevators exceeding the safety value downwards and upwards, and take emergency measures after exceeding a certain value; the existing acceleration detection device mostly adopts an electronic sensor, so that the device is easy to damage, and particularly when the device is arranged outside a car, the electronic components are easy to damage due to the humid environment in a hoistway; therefore, it is necessary to design a mechanical elevator acceleration detection device.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a mechanical elevator acceleration detection device, which adopts a metal inertia block to overcome the spring force to move up or down relative to an installation barrel in the process of emergency acceleration or emergency deceleration of an elevator, conductive contacts are arranged above and below the inertia block, and the inertia block is used for switching on the conductive contacts due to the conductive characteristic of metal to realize the feedback of signals; the two stages of conductive contacts are arranged, so that different processing modes can be adopted for different acceleration speeds; the acceleration detection device adopts a mechanical structure, is simple in structure, reliable in quality and long in service life, and can provide guarantee for the safety of the elevator.
The specific technical scheme of the invention is as follows: a mechanical elevator acceleration detection device, comprising:
the mounting cylinder is a cylindrical hollow inner cylinder, and the axis of the mounting cylinder is vertically mounted on the elevator car;
the inertia block is a cylindrical metal block arranged in the mounting cylinder, and the excircle of the inertia block is in clearance fit with the inner hole of the mounting cylinder;
the upper sealing cover is plugged at the upper end of the mounting cylinder;
the lower sealing cover is sealed and plugged at the lower end of the mounting cylinder;
a first acceleration detection assembly is arranged between the inertia block and the upper sealing cover in the mounting cylinder;
and a second acceleration detection assembly is arranged between the inertia block and the lower sealing cover in the mounting cylinder.
When the elevator is accelerated or decelerated suddenly downwards or upwards, the speed of the inertia block has hysteresis, and if the acceleration exceeds the safety value of the elevator, the inertia block acts on the first acceleration detection component or the second acceleration detection component to provide an early warning signal or a signal for taking safety measures for the operation of the elevator.
Preferably, the first acceleration detecting unit includes a first buffer spring group mounted between the upper bottom surface of the inertial mass and the inner surface of the upper cover, and further includes a first acceleration feedback unit mounted on the inner surface of the upper cover.
Preferably, the second acceleration detecting unit includes a second buffer spring set mounted between the lower bottom surface of the inertial mass and the inner surface of the lower cover, and a second acceleration feedback unit mounted on the inner surface of the lower cover.
Preferably, the first acceleration feedback assembly includes a first transition plate located between the upper bottom surface of the inertia block and the inner surface of the upper cover and arranged in parallel with the upper bottom surface of the inertia block, and a third buffer spring set installed between the first transition plate and the inner surface of the upper cover.
Preferably, one side of the first transition plate, which is close to the inertia block, is provided with a first insulating layer, one side of the first transition plate, which is far away from the inertia block, is provided with a first conducting layer, and the first insulating layer is provided with two first conducting contacts which are separated from each other; and the inner surface of the upper sealing cover is provided with two second conductive contacts which are separated.
Whereby the inertia mass moves upward relative to the mounting tube during downward acceleration or upward deceleration of the elevator; if the elevator reaches a first acceleration, the elevator is contacted with the first conductive contacts, so that the two first conductive contacts are connected; if the elevator reaches a second acceleration, the inertia block can push the first transition plate to move upwards, so that the first conductive layer is contacted with the second conductive contacts, and the two second conductive contacts are connected; the first acceleration is generally set to be 1.1-1.3 times of the safety acceleration of the elevator, and the second acceleration is set to be 1.3-2 times of the safety acceleration of the elevator.
Preferably, the first conductive contact is connected by a first wire and then extends out of the detection device through the upper cover, and the second conductive contact is connected by a second wire and then extends out of the detection device through the upper cover.
Therefore, the two first wires and the two second wires are respectively connected with a controller to provide signals of the first acceleration and the second acceleration for the controller, and the controller respectively controls the elevator to take different safety measures according to the two signals; and the through holes of the first lead and the second lead after penetrating through the upper sealing cover are sealed by adopting a sealant such as glass cement.
Preferably, the second acceleration feedback assembly includes a second transition plate located between the lower bottom surface of the inertia block and the inner surface of the lower cover and arranged in parallel with the lower bottom surface of the inertia block, and a fourth buffer spring set installed between the second transition plate and the inner surface of the lower cover.
Preferably, one side of the second transition plate, which is close to the inertia block, is provided with a second insulating layer, one side of the second transition plate, which is far away from the inertia block, is provided with a second conductive layer, and the second insulating layer is provided with two third conductive contacts which are separated from each other; and two fourth spaced conductive contacts are arranged on the inner surface of the lower sealing cover.
Whereby the inertia mass moves downward relative to the mounting tube during upward acceleration or downward deceleration of the elevator; if the elevator reaches a third acceleration, the elevator is contacted with the third conductive contacts, so that the two third conductive contacts are connected; if the elevator reaches a fourth acceleration, the inertia block can push the second transition plate to move downwards, so that the second conductive layer is contacted with the fourth conductive contacts, and the two fourth conductive contacts are connected; the third acceleration is generally set to be 1.1 to 1.3 times of the safe acceleration of the elevator, and the fourth acceleration is set to be 1.3 to 2 times of the safe acceleration of the elevator.
Preferably, the third conductive contact is connected by a third wire and then extends out of the detection device through the lower cover, and the fourth conductive contact is connected by a fourth wire and then extends out of the detection device through the lower cover.
Therefore, the two third wires and the fourth wire are respectively connected with the controller to provide signals of the third acceleration and the fourth acceleration for the controller, and the controller respectively controls the elevator to take different safety measures according to the two signals; and the through holes of the third lead and the fourth lead after penetrating through the lower sealing cover are sealed by adopting a sealant such as glass cement.
Preferably, the inertial mass is a copper mass.
The mass of the inertial mass can be reduced by using the copper mass, and good power conduction is guaranteed.
In conclusion, the invention has the following beneficial effects:
the mechanical elevator acceleration detection device adopts the metal inertia block to overcome the spring force to move up or down relative to the mounting cylinder in the process of emergency acceleration or emergency deceleration of the elevator, conductive contacts are arranged above and below the inertia block, and the inertia block is used as the conductive characteristic of metal to be connected with the conductive contacts, so that the feedback of signals is realized; the two stages of conductive contacts are arranged, so that different processing modes can be adopted for different acceleration speeds; the acceleration detection device adopts a mechanical structure, is simple in structure, reliable in quality and long in service life, and can provide guarantee for the safety of the elevator.
Drawings
Fig. 1 is a schematic structural view of an acceleration detecting apparatus of a mechanical elevator according to the present invention;
fig. 2 is a partially enlarged view of a first transition plate of the acceleration sensing apparatus for a mechanical elevator according to the present invention;
fig. 3 is a partially enlarged view of the acceleration detecting apparatus for a mechanical elevator according to the present invention at a second transition plate;
fig. 4 is a schematic structural view of the acceleration sensing device of the mechanical elevator according to the present invention accelerating downward or decelerating upward to a small extent;
fig. 5 is a schematic structural view of the acceleration sensing device of the mechanical elevator according to the present invention accelerating downward or decelerating upward to a large extent;
in the figure, 1-mounting cylinder, 2-inertia block, 3-upper sealing cover, 31-second conductive contact, 32-second lead, 4-lower sealing cover, 41-fourth conductive contact, 42-fourth lead, 5-first acceleration detection component, 51-first buffer spring group, 52-first acceleration feedback component, 521-first transition plate, 5211-first insulating layer, 5212-first conductive layer, 5213-first conductive contact, 5214-first lead, 522-third buffer spring group, 6-second acceleration detection component, 61-second buffer spring group, 62-second acceleration feedback component, 621-second transition plate, 6211-second insulating layer, 6212-second conductive layer, 6213-third conductive contact, 6213-second conductive contact, 6214-third conductor, 622-fourth buffer spring set.
Detailed Description
The invention will be further explained by means of specific embodiments with reference to the drawings.
As shown in fig. 1, 4 and 5, a mechanical elevator acceleration detection device includes:
the elevator car mounting structure comprises a mounting cylinder 1, wherein the mounting cylinder 1 is a cylindrical hollow inner cylinder, and the axis of the mounting cylinder is vertically mounted on an elevator car;
the inertia block 2 is a cylindrical metal block arranged in the installation cylinder 1, and the excircle of the inertia block 2 is in clearance fit with the inner hole of the installation cylinder 1;
the upper sealing cover 3 is plugged at the upper end of the mounting cylinder 1;
the lower sealing cover 4 is plugged at the lower end of the mounting cylinder 1;
a first acceleration detection component 5 is arranged between the inertia block 2 and the upper sealing cover 3 in the mounting cylinder 1;
and a second acceleration detection component 6 is arranged between the inertia block 2 and the lower sealing cover 4 in the mounting cylinder 1.
When the elevator is accelerated or decelerated suddenly downwards or upwards, the speed of the inertia block 2 has hysteresis, and if the acceleration exceeds the safety value of the elevator, the inertia block 2 acts on the first acceleration detection component 5 or the second acceleration detection component 6 to provide an early warning signal or a signal for taking safety measures for the operation of the elevator.
As shown in fig. 1, 4 and 5, the first acceleration sensing assembly 5 includes a first buffer spring set 51 mounted between the upper bottom surface of the inertial mass 2 and the inner surface of the upper cover 3, and further includes a first acceleration feedback assembly 52 mounted on the inner surface of the upper cover 3.
As shown in fig. 1, 4 and 5, the second acceleration sensing assembly 6 includes a second buffer spring set 61 mounted between the lower bottom surface of the inertial mass 2 and the inner surface of the lower cover 4, and a second acceleration feedback assembly 62 mounted on the inner surface of the lower cover 4.
As shown in fig. 1, 2, 4 and 5, the first acceleration feedback assembly 52 includes a first transition plate 521 disposed between the upper bottom surface of the inertia mass 2 and the inner surface of the upper cover 3 in parallel with the upper bottom surface of the inertia mass 2, and a third buffer spring group 522 disposed between the first transition plate 521 and the inner surface of the upper cover 3.
As shown in fig. 1, 2, 4 and 5, a first insulating layer 5211 is disposed on one side of the first transition plate 521 close to the inertial mass 2, and a first conductive layer 5212 is disposed on one side of the first transition plate away from the inertial mass 2, and two first conductive contacts 5213 are disposed on the first insulating layer 5211; the inner surface of the upper cover 3 is provided with two spaced apart second conductive contacts 31.
Thereby, the inertia block 2 moves upward relative to the installation cylinder 1 during the downward acceleration or upward deceleration of the elevator; when the elevator reaches a first acceleration, the elevator contacts the first conductive contacts 5213, so that the two first conductive contacts 5213 are connected; if the elevator reaches the second acceleration, the inertia block 2 pushes the first transition plate 521 to move upwards, so that the first conductive layer 5212 is contacted with the second conductive contacts 31, and the two second conductive contacts 31 are connected; the first acceleration is generally set to be 1.1-1.3 times of the safety acceleration of the elevator, and the second acceleration is set to be 1.3-2 times of the safety acceleration of the elevator.
As shown in fig. 1, 2, 4 and 5, the first conductive contact 5213 is connected by a first lead 5214 and then extends out of the detection device through the upper cover 3, and the second conductive contact 31 is connected by a second lead 32 and then extends out of the detection device through the upper cover 3.
Thus, the two first wires 5214 and the second wire 32 are respectively connected with the controller to provide signals of the first acceleration and the second acceleration for the controller, and the controller respectively controls the elevator to take different safety measures according to the two signals; the through holes of the first and second leads 5214 and 32 after passing through the upper cap 3 are sealed with a sealant such as glass cement.
As shown in fig. 1, 3, 4 and 5, the second acceleration feedback assembly 62 includes a second transition plate 621 disposed between the lower bottom surface of the inertia mass 2 and the inner surface of the lower cover 4 and parallel to the lower bottom surface of the inertia mass 2, and a fourth buffer spring group 622 mounted between the second transition plate 621 and the inner surface of the lower cover 4.
As shown in fig. 1, 3, 4, and 5, a second insulating layer 6211 is disposed on the side of the second transition plate 621 close to the inertial mass 2, and a second conductive layer 6212 is disposed on the side far from the inertial mass 2, and two spaced third conductive contacts 6213 are disposed on the second insulating layer 6211; the inner surface of the lower cover 4 is provided with two spaced fourth conductive contacts 41.
Thereby, the inertia block 2 moves downward relative to the installation cylinder 1 during upward acceleration or downward deceleration of the elevator; if the elevator reaches a third acceleration, the elevator can be contacted with the third conductive contacts 6213, so that the two third conductive contacts 6213 are connected; if the elevator reaches a fourth acceleration, the inertia block 2 pushes the second transition plate 621 to move downwards, so that the second conductive layer 6212 is contacted with the fourth conductive contacts 41, and the two fourth conductive contacts 41 are connected; the third acceleration is generally set to be 1.1-1.3 times of the safety acceleration of the elevator, and the fourth acceleration is set to be 1.3-2 times of the safety acceleration of the elevator.
As shown in fig. 1, 3, 4, and 5, the third conductive contact 6213 is connected by a third conductive wire 6214 and then extends out of the detection device through the lower cover 4, and the fourth conductive contact 41 is connected by a fourth conductive wire 42 and then extends out of the detection device through the lower cover 4.
Thus, the two third wires 6214 and the fourth wire 42 are respectively connected with the controller to provide signals of third acceleration and fourth acceleration for the controller, and the controller respectively controls the elevator to take different safety measures according to the two signals; the through holes of the third conductive wires 6214 and the fourth conductive wires 42 passing through the lower cover 4 are sealed with a sealant such as glass cement.
The inertia block 2 is a copper block.
The mass density of copper is large and the electric conductivity is good, so that the mass volume of the detection device can be reduced by using the copper mass for the inertia mass 2, and good electrification is ensured.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.
Claims (8)
1. A mechanical elevator acceleration detection device, characterized by comprising: the mounting device comprises a mounting cylinder (1), wherein the mounting cylinder (1) is a cylindrical hollow inner cylinder, and the axis of the mounting cylinder is vertically mounted on an elevator car; the inertia block (2) is a cylindrical metal block arranged in the mounting cylinder (1), and the excircle of the inertia block (2) is in clearance fit with the inner hole of the mounting cylinder (1); the upper sealing cover (3), the upper sealing cover (3) is sealed and plugged at the upper end of the mounting cylinder (1); the lower sealing cover (4), the lower sealing cover (4) is sealed and plugged at the lower end of the mounting cylinder (1); a first acceleration detection assembly (5) is arranged between the inertia block (2) and the upper sealing cover (3) in the mounting cylinder (1); a second acceleration detection assembly (6) is arranged between the inertia block (2) and the lower sealing cover (4) in the mounting cylinder (1);
the first acceleration detection assembly (5) comprises a first buffer spring set (51) arranged between the upper bottom surface of the inertia block (2) and the inner surface of the upper cover (3), and further comprises a first acceleration feedback assembly (52) arranged on the inner surface of the upper cover (3);
the first acceleration feedback assembly (52) comprises a first transition plate (521) which is positioned between the upper bottom surface of the inertia block (2) and the inner surface of the upper cover (3) and is arranged in parallel with the upper bottom surface of the inertia block (2), and a third buffer spring group (522) which is arranged between the first transition plate (521) and the inner surface of the upper cover (3).
2. The mechanical elevator acceleration detection device according to claim 1, characterized in that: the second acceleration detection assembly (6) comprises a second buffer spring set (61) installed between the lower bottom surface of the inertia block (2) and the inner surface of the lower cover (4), and further comprises a second acceleration feedback assembly (62) installed on the inner surface of the lower cover (4).
3. The mechanical elevator acceleration detection device according to claim 1, characterized in that: a first insulating layer (5211) is arranged on one side, close to the inertial block (2), of the first transition plate (521), a first conductive layer (5212) is arranged on one side, far away from the inertial block (2), and two first conductive contacts (5213) which are separated from each other are arranged on the first insulating layer (5211); the inner surface of the upper sealing cover (3) is provided with two second conductive contacts (31) which are separated.
4. The mechanical elevator acceleration detecting device according to claim 3, characterized in that: the first conductive contact (5213) is connected by a first lead (5214) and then extends out of the detection device through the upper cover (3), and the second conductive contact (31) is connected by a second lead (32) and then extends out of the detection device through the upper cover (3).
5. The mechanical elevator acceleration detecting device according to claim 2, characterized in that: the second acceleration feedback assembly (62) comprises a second transition plate (621) which is positioned between the lower bottom surface of the inertia block (2) and the inner surface of the lower cover (4) and is arranged in parallel with the lower bottom surface of the inertia block (2), and a fourth buffer spring group (622) which is arranged between the second transition plate (621) and the inner surface of the lower cover (4).
6. The mechanical elevator acceleration detecting device according to claim 5, characterized in that: a second insulating layer (6211) is arranged on one side, close to the inertial mass (2), of the second transition plate (621), a second conductive layer (6212) is arranged on one side, far away from the inertial mass (2), and two third conductive contacts (6213) which are separated from each other are arranged on the second insulating layer (6211); and two fourth spaced conductive contacts (41) are arranged on the inner surface of the lower sealing cover (4).
7. The mechanical elevator acceleration detecting device according to claim 6, wherein: the third conductive contact (6213) is connected by a third lead (6214) and then extends out of the detection device through the lower cover (4), and the fourth conductive contact (41) is connected by a fourth lead (42) and then extends out of the detection device through the lower cover (4).
8. The mechanical elevator acceleration detecting device according to any one of claims 1 to 7, characterized in that: the inertia block (2) is a copper block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811293667.XA CN109179137B (en) | 2018-11-01 | 2018-11-01 | Mechanical elevator acceleration detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811293667.XA CN109179137B (en) | 2018-11-01 | 2018-11-01 | Mechanical elevator acceleration detection device |
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| CN109179137A CN109179137A (en) | 2019-01-11 |
| CN109179137B true CN109179137B (en) | 2020-07-31 |
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| CN201811293667.XA Active CN109179137B (en) | 2018-11-01 | 2018-11-01 | Mechanical elevator acceleration detection device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4202418A1 (en) * | 1992-01-29 | 1993-08-05 | Bosch Gmbh Robert | Acceleration sensor for triggering vehicle passenger safety devices - contains switching magnets, at least one fixed and one spring suspended, and magnetic field sensitive reed switch |
| CN1730335A (en) * | 2004-08-04 | 2006-02-08 | 北京理工大学 | Method and apparatus for detecting and controlling railway freight-car derailment |
| CN201549441U (en) * | 2009-11-20 | 2010-08-11 | 北京遥测技术研究所 | Mechanical accelerating switch without power supply |
| CN102254741A (en) * | 2011-07-06 | 2011-11-23 | 重庆大学 | Micro-mechanical acceleration switch |
| CN102348625A (en) * | 2009-03-16 | 2012-02-08 | 奥的斯电梯公司 | Over-acceleration and over-speed detection and processing system |
| CN103295835A (en) * | 2013-05-24 | 2013-09-11 | 南京航空航天大学 | Acceleration switch |
| CN104143473A (en) * | 2013-05-06 | 2014-11-12 | 重庆绿色智能技术研究院 | Acceleration switch and control method of acceleration switch |
-
2018
- 2018-11-01 CN CN201811293667.XA patent/CN109179137B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4202418A1 (en) * | 1992-01-29 | 1993-08-05 | Bosch Gmbh Robert | Acceleration sensor for triggering vehicle passenger safety devices - contains switching magnets, at least one fixed and one spring suspended, and magnetic field sensitive reed switch |
| CN1730335A (en) * | 2004-08-04 | 2006-02-08 | 北京理工大学 | Method and apparatus for detecting and controlling railway freight-car derailment |
| CN102348625A (en) * | 2009-03-16 | 2012-02-08 | 奥的斯电梯公司 | Over-acceleration and over-speed detection and processing system |
| CN201549441U (en) * | 2009-11-20 | 2010-08-11 | 北京遥测技术研究所 | Mechanical accelerating switch without power supply |
| CN102254741A (en) * | 2011-07-06 | 2011-11-23 | 重庆大学 | Micro-mechanical acceleration switch |
| CN104143473A (en) * | 2013-05-06 | 2014-11-12 | 重庆绿色智能技术研究院 | Acceleration switch and control method of acceleration switch |
| CN103295835A (en) * | 2013-05-24 | 2013-09-11 | 南京航空航天大学 | Acceleration switch |
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| CN109179137A (en) | 2019-01-11 |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: No.1588 Xiangyang West Road, Nanxun Economic Development Zone, Huzhou City, Zhejiang Province Patentee after: Zhejiang Huaxia Elevator Co.,Ltd. Address before: No.1588 Xiangyang West Road, Nanxun Economic Development Zone, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG HSEE ELEVATOR Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A mechanical elevator acceleration detection device Effective date of registration: 20210730 Granted publication date: 20200731 Pledgee: Nanxun Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: Zhejiang Huaxia Elevator Co.,Ltd. Registration number: Y2021330001043 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200731 Pledgee: Nanxun Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: Zhejiang Huaxia Elevator Co.,Ltd. Registration number: Y2021330001043 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |