CN102074390A - Top-impacting-prevention limit device - Google Patents
Top-impacting-prevention limit device Download PDFInfo
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- CN102074390A CN102074390A CN 201010268103 CN201010268103A CN102074390A CN 102074390 A CN102074390 A CN 102074390A CN 201010268103 CN201010268103 CN 201010268103 CN 201010268103 A CN201010268103 A CN 201010268103A CN 102074390 A CN102074390 A CN 102074390A
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- guide rail
- depression bar
- sliding shoe
- movable contact
- contact
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- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention relates to a limit device for a steel cable hoist, comprising a pressure lever mechanism, a shell, a shell cover, a fixed contact and a movable contact, wherein the pressure lever mechanism comprises a pressure lever, a guide track, a slide block and a pressure lever cap, wherein the guide track is externally sleeved on the upper end of the pressure lever and provided with the slide block; a limit spring is arranged between the slide block and the guide track; the slide block is slidably connected with the guide track; the fixed contact is fixed in the shell; the movable contact is arranged on the slide block; a contact spot of the movable contact contacts with or is separated from a contact spot of the fixed contact; the top of the upper end of the pressure lever is provided with an offsetting spring; the middle part of the pressure lever is provided with a cushioning spring; the offsetting spring is sleeved in the pressure lever cap; the pressure lever cap is fixedly connected with the shell; the surface of the shell, which is fixedly connected with the pressure lever cap, is provided with a through groove; and the pressure lever mechanism is slidably connected with the through groove. The top-impacting-prevention limit device provided by the invention has the advantages of automatic reset performance without manual reset, flexibility for action, compact structure, and convenience for installation, and the movable contact and the fixed contact can be separated quickly.
Description
Technical field
The present invention relates to a kind of spacing jockey, especially relate to a kind of stopping means that is used on the steel cable hoist.
Background technology
The stopping means that is used in the prior art on the electric block is generally limit switch, and its structure is to be provided with two fixed contact, movable contact and depression bars that connect external circuit in spacing body; Movable contact is crooked tablet, a contact in fixedly connected two fixed contacts of an end, and the other end flexibly connects another contact of fixed contact, and depression bar is pressed in the position of arching of movable contact.When object contact down during moulded rod, depression bar is to pressing down movable contact, and the contact of control movable contact disconnects, and forms short circuit.When object left depression bar, the contact of the movable contact that is pressed down obtained discharging, and relied on self elasticity to upspring and contact with fixed contact, realized the circuit connection.This stopping means because the stage clip of movable contact bottom ruptures or stage clip follows the string, makes circuit not connect or to disconnect phenomenon and takes place frequently after long-term work.
Patent publication No. CN201430091Y, in open day on March 24th, 2010, the name of utility model is called depression bar forces the breakaway-element limit switch, comprises switch body, fixed contact, movable contact and switch control piece; Described movable contact is Metal Flake thing, and the two ends of this movable contact respectively are provided with a contact, is provided with spring between described movable contact and the switch body intracavity bottom, and described spring is coil spring or flat spring.In switch body, be provided with fixed contact, fixed contact is provided with two fixed contacts, these two fixed contacts connect external circuit by brace, are provided with the movable contact of two armature contacts in addition, are provided with the compression spring below the armature contact, switch body is provided with spring bearer plate outward, below this spring bearer plate driving member is set, when the object shake-up presses down spring bearer plate, presses down two armature contacts by driving member, two armature contacts and two fixed contacts are broken away from, and formation is opened circuit.When object left spring bearer plate, this spring bearer plate discharged, and two armature contacts move up under the effect of compression spring, contact with two fixed contacts, and circuit is connected.Its weak point be when the spring bearer plate of switch control piece behind bump energetically, its loss of elasticity heads on depression bar compression spring all the time, makes movable contact not reset, circuit disconnects all the time.
Summary of the invention
The present invention provides a kind of anti-stopping means of rushing to summit for solving the automatically reset difficult problem of ability and job insecurity of stopping means in the above-mentioned prior art.
The scheme that the present invention solves the problems of the technologies described above is: a kind of anti-stopping means of rushing to summit, comprise pressure lever mechanism, housing, cap, be fixedly connected on the fixed contact and the movable contact that is located on the pressure lever mechanism of enclosure interior, described pressure lever mechanism comprises depression bar, guide rail, sliding shoe, guide rail is enclosed within the upper end of depression bar outward, guide rail is provided with sliding shoe, be provided with limit spring between sliding shoe and the guide rail, sliding shoe and guide rail are slidingly connected, fixed contact is fixed in the housing, with two contacts on the contact of one side at grade, movable contact is located on the sliding shoe, the contact of movable contact contacts or is separated with the contact of fixed contact, the top, upper end of depression bar is provided with back-moving spring, the middle part of depression bar is provided with buffer spring, and described back-moving spring is sleeved in the depression bar cap, and this depression bar cap is fixedly connected on the housing, the surface that housing is fixedlyed connected with the depression bar cap is provided with the groove of perforation, and pressure lever mechanism and described groove are slidingly connected.Pressure lever mechanism is subjected to external force collision, place the back-moving spring at top, depression bar upper end to be compressed, whole pressure lever mechanism moves up, connect sliding shoe and guide rail and be compressed about symmetrically arranged two limit spring of guide rail, when two limit spring are compressed to the position of the critical point that is a straight line, when pressure lever mechanism moves up again, compressed two limit spring are crossed critical point and are obtained discharging, stretch fast in the opposite direction, make sliding shoe on guide rail, slide fast, thereby movable contact of being located on the sliding shoe and the fixed contact that is located in the housing are broken away from fast, thereby make circuit moment disconnection.When external force sheds, place the compressed back-moving spring in depression bar top, upper end to obtain discharging, whole pressure lever mechanism is moved down, two limit spring that connect sliding shoe and guide rail are compressed once more, when two limit spring are compressed to the position of the critical point that is a straight line, when pressure lever mechanism moves down again, two limit spring being compressed once more obtain discharging again and stretch fast in the opposite direction, make sliding shoe on guide rail, slide fast, get back to original position, thereby the fixed contact in making movable contact set on the sliding shoe and being located at housing contacts fast, and major loop is connected.
As preferably, limit spring is two and is symmetrical arranged about guide rail that limit spring one end is connected with sliding shoe, and the other end is connected with guide rail.Generally speaking, fixed contact is closely contacting with movable contact, when pressure lever mechanism is clashed into, limit spring is compressed into vertically by the critical point position, stretch in the opposite direction, fixed contact and movable contact great-jump-forward break away from, and make major loop disconnect fast.
As preferably, sliding shoe is cross, and sliding shoe is enclosed within outward on the guide rail, and the widthwise edge of sliding shoe is provided with through hole, is fixed with movable contact in the through hole, and the vertical edge of sliding shoe is provided with two rectangle grooves.Movable contact is located on the widthwise edge of sliding shoe, can better contact with fixed contact, and the vertical edge of sliding shoe is provided with two rectangle grooves, is convenient to limit spring and passes through in groove, makes movable contact contact or be separated with fixed contact.
As preferably, movable contact is a thin slice, and the middle part is recessed, and the contact is established at two ends; Movable contact passes the through hole on the sliding shoe, the back of movable contact is provided with a catch, on catch and the position that movable contact matches a groove is arranged, and the back of catch is provided with stage clip, the back of stage clip also is provided with a catch, and stage clip is positioned between two catch and compresses movable contact.What make like this that movable contact can be stable contacts with fixed contact or breaks away from, and can not occur swinging, and it is unstable to make that fixed contact contacts with movable contact, influences the break-make of major loop.
As preferably, be provided with a rectangular through holes in the middle part of the guide rail upper rail front surface, the middle part of through hole is inlaid with catch I, and the top of two rectangle grooves is inlaid with locating piece on the sliding shoe, and limit spring one end is connected with catch I, and the other end is connected with locating piece.Two limit spring are symmetrical arranged about guide rail, when two limit spring are compressed into vertical shape to critical point, fixed contact will contact loosening with movable contact, after limit spring is by critical point, will stretch in the opposite direction, fixed contact and movable contact break away from fast, and major loop is disconnected.
As preferably, guide rail is a tetragonal body, and the guide rail upper end is provided with snap ring, and snap ring places on the housing outer surface, and the guide rail lower end is provided with boss, and the upper and lower surface of guide rail is provided with circular groove.Guide rail is a tetragonal body when sliding, about the phenomenon of rolling can not appear, can not influence contacting of the movable contact that is located on the sliding shoe and fixed contact; The snap ring of guide rail upper end is to be used for limiting the position of guide rail on housing, and the assurance fixed contact contacts and disengaging with movable contact; Circular groove on the guide rail upper and lower surface is used for to back-moving spring and buffer spring location.
As preferably, depression bar is a cylinder, and the top of depression bar upper end is provided with snap ring I, and the top of depression bar upper end stretches out in the upper surface of guide rail, and depression bar and guide rail are fixed by snap ring I.Adopt the fixing simple and convenient disassembly of this snap ring.
As preferably, be with back-moving spring in the depression bar cap, the depression bar cap is connected on the housing by screw.Back-moving spring is sleeved in the cavity, and back-moving spring can not move left and right, uses the term of validity long, and changes also relatively facility.
As preferably, the anti-stopping means of rushing to summit also has a shell, and shell is made of shell body and casing cover, and shell body is provided with incoming line and line outlet, and shell body and casing cover fastening pass through screw.The anti-stopping means of rushing to summit is fixed in the shell, good looking appearance and be convenient to install and use.
As preferably, the buffer spring of socket is positioned at the lower surface place of guide rail on the depression bar.This buffer spring mainly prevents the excessive damage to the anti-stopping means of rushing to summit of impulsive contact force.
Beneficial effect of the present invention is: when this stopping means is subjected to the bump of electric block, the circuit of the stopping means of control major loop disconnects rapider than daily stopping means, daily stopping means is compressed slowly by spring and disconnects, and the present invention is compressed and arrives the moment stretching, extension of great-jump-forward in the opposite direction after the critical point by being located at limit spring on guide rail and the sliding shoe, make movable contact moment break away from fixed contact, thereby make the circuit of major loop disconnect, electric block is out of service, avoiding rushing to summit causes the accident, and structure of the present invention is tight, flexible movements, it is convenient to install.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the structural representation of housing of the present invention;
Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of pressure lever mechanism of the present invention;
Fig. 4 is the structural representation of sliding shoe of the present invention.
Among the figure: 1-housing, 2-pressure lever mechanism, 3-sliding shoe, 4-fixed contact, 5-depression bar, 6-guide rail, 7-back-moving spring, 8-depression bar cap, 9-snap ring, 10-catch I, 11-pad, 12-buffer spring, 13-locating piece, 14-movable contact, 15-limit spring.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of anti-stopping means of rushing to summit, comprise housing 1, pressure lever mechanism 2, sliding shoe 3, have cavity on the front surface of housing 1, one rectangular groove is arranged at the bottom of cavity, projection on four angles of front surface, and the front surface of projection is provided with screw, fixed contact 4 is fixed in the cavity of housing 1 by screw, four contacts of fixed contact 4 at grade.
As shown in Figure 2, the projection outside at two diagonal angles of housing 1 is provided with two semicircular projections, and the upper surface of projection is provided with logical screw, is by screw cap to be fixed on the housing; The lower surface of housing 1 is provided with two screws, is that stopping means is fixed on the shell body, and place, four angles, the bottom surface of housing is provided with groove; 1 two relative sides of housing are provided with the groove of perforation, and this groove cross section is convex shape, and is young under the top groove, and the lower recess end opening is big; Pressure lever mechanism 2 is placed in this groove, and slides in this groove.
As shown in Figure 3, pressure lever mechanism 2 comprises depression bar 5, guide rail 6, back-moving spring 7, buffer spring 12, depression bar cap 8, and the guide rail 6 on the pressure lever mechanism 2 is slidingly connected with the groove on the housing 1; Depression bar 5 is cylinder, and is small in ends, broad in the middle, and a small end top is provided with screw thread, and the top of another small end is provided with a little snap ring, and this lesser calorie ring is fixed depression bar 5 and guide rail 6 together; Guide rail 6 is a tetragonal body, the centre is provided with the through hole of suit depression bar 5, the bottom of guide rail 6 is provided with two boss, small boss is used for spacing sliding shoe 3, big boss is to be used for limit guide rail 6 to slide on the groove of housing 1, the top of guide rail 6 upper ends is provided with snap ring 9,6 position-limiting actions of 9 pairs of guide rails of snap ring, snap ring 9 is positioned on the outer surface of housing 1, and the front surface of guide rail 6 middle part is provided with a rectangular through holes, the middle part of through hole is inlaid with a catch I10, be extended with a small lugs on the upper and lower surface of catch I10, the middle part of catch I10 is provided with through hole, and this through hole makes things convenient for passing of depression bar 5, guide rail 6 upper surfaces are provided with circular groove, make things convenient for the location of back-moving spring 7; The upper end of depression bar 5 big ends is provided with pad 11, and the upper surface of pad 11 is provided with a buffer spring 12, buffer spring 12 outer being enclosed within on the depression bar 5, and guide rail 6 is also outer to be enclosed within on the depression bar 5, and the lower surface of guide rail 6 is provided with circular groove and matches with buffer spring 12.Sliding shoe 3 outer being enclosed within on the guide rail 6, between sliding shoe 3 and guide rail 6, be provided with two limit spring 15, two limit spring 15 are symmetrical arranged about guide rail 6, and limit spring 15 1 ends snap in the small lugs of locating piece 13, and the other end snaps in the small lugs of guide rail 6 upper stop piece I10.At the top of depression bar 5 socket back-moving spring 7, back-moving spring 7 is sleeved in the depression bar cap 8, and depression bar cap 8 upper ends are round platform, the lower end is a cylinder, cylindrical periphery is provided with two semicircular projections, and the surface of projection is provided with through hole, depression bar cap 8 by screw on housing 1.
As shown in Figure 4, sliding shoe 3 is cross, be provided with the square through hole that matches with guide rail 6 in the middle part of sliding shoe 3, on the surface of the vertical edge of sliding shoe 3, be provided with two rectangle grooves, the top of groove is inlaid with locating piece 13, locating piece 13 outwards has a small lugs, on the upper surface of the widthwise edge of sliding shoe 3, be provided with a square through hole, movable contact 14 passes through hole, and after movable contact 14 passed through hole, the back of movable contact 14 was provided with a catch, on catch and the position that movable contact 14 matches a groove is arranged, the back of catch is provided with stage clip, and the back of stage clip also is provided with a catch, and stage clip is positioned in and compresses movable contact 14 between two catch.
The anti-stopping means of rushing to summit also comprises a shell (not showing in the accompanying drawing), this shell is made of shell body and casing cover, incoming line and line outlet are arranged on the shell body, connect by electric wire will prevent rushing to summit stopping means and electric block major loop, shell body and casing cover connect by screw after fastening from the side.
In use, the anti-stopping means of rushing to summit is fixed on the shell body of shell, also have incoming line and line outlet on the shell body of shell, to prevent rushing to summit stopping means and electric block major loop connected, the casing cover of shell and shell body fasten and are screwed, again shell is installed in fixedly on the steel wire rope, just in the face of the movable wire rope, adjust free wheel upper limit position and anti-rush to summit stopping means and free wheel contact position simultaneously, when being subjected to free wheel, pressure lever mechanism clashes into, place the back-moving spring at top, depression bar upper end to be compressed, whole pressure lever mechanism moves up, connect sliding shoe and guide rail and be compressed about symmetrically arranged two limit spring of guide rail, when two limit spring are compressed to the position of the critical point that is a straight line, when pressure lever mechanism moves up again, compressed two limit spring are crossed critical point and are obtained discharging, stretch fast in the opposite direction, make sliding shoe on guide rail, slide fast, thereby movable contact of being located on the sliding shoe and the fixed contact that is located in the housing are broken away from fast, thereby make major loop moment disconnection, electric block is out of service, avoids rushing to summit causing the accident; When external force sheds, place the compressed back-moving spring in depression bar top, upper end to obtain discharging, whole pressure lever mechanism is moved down, two limit spring that connect sliding shoe and guide rail are compressed once more, when two limit spring are compressed to the position of the critical point that is a straight line, when pressure lever mechanism moves down again, two limit spring being compressed once more obtain discharging again and stretch fast in the opposite direction, make sliding shoe on guide rail, slide fast, get back to original position, thereby the fixed contact in making movable contact set on the sliding shoe and being located at housing contacts fast, and major loop is connected, and plays protective action again.
Claims (10)
1. prevent rushing to summit stopping means for one kind, comprise pressure lever mechanism, housing, cap, be fixedly connected on the fixed contact and the movable contact that is located on the pressure lever mechanism of enclosure interior, it is characterized in that: described pressure lever mechanism (2) comprises depression bar (5), guide rail (6), sliding shoe (3), the outer upper end that is enclosed within depression bar (5) of guide rail (6), guide rail (6) is provided with sliding shoe (3), be provided with limit spring (15) between sliding shoe (3) and the guide rail (6), sliding shoe (3) is slidingly connected with guide rail (6), fixed contact is fixed in the housing (1), with two contacts on the contact of one side at grade, movable contact is located on the sliding shoe (3), the contact of movable contact contacts or is separated with the contact of fixed contact, the top, upper end of depression bar (5) is provided with back-moving spring (7), the middle part of depression bar (5) is provided with buffer spring (12), described back-moving spring (7) is sleeved in the depression bar cap (8), this depression bar cap (8) is fixedly connected on the housing (1), the surface that housing (1) is fixedlyed connected with depression bar cap (8) is provided with the groove of perforation, and pressure lever mechanism (2) is slidingly connected with described groove.
2. the anti-stopping means of rushing to summit according to claim 1 is characterized in that described limit spring (15) is two and is symmetrical arranged about guide rail that limit spring (15) one ends are connected with sliding shoe (3), and the other end is connected with guide rail (6).
3. the anti-stopping means of rushing to summit according to claim 1, it is characterized in that sliding shoe (3) is cross, sliding shoe (3) is outer to be enclosed within on the guide rail (6), the widthwise edge of sliding shoe (3) is provided with through hole, be fixed with movable contact in the through hole, the vertical edge of sliding shoe (3) is provided with two rectangle grooves.
4. the anti-stopping means of rushing to summit according to claim 1 is characterized in that movable contact (14) is a thin slice, and the middle part is recessed, and the contact is established at two ends; Movable contact (14) passes the through hole on the sliding shoe (3), the back of movable contact (14) is provided with a catch, on catch and the position that movable contact (14) matches a groove is arranged, the back of catch is provided with stage clip, the back of stage clip also is provided with a catch, and stage clip is positioned in and compresses movable contact (14) between two catch.
5. the anti-stopping means of rushing to summit according to claim 1, it is characterized in that guide rail (6) front surface middle part is provided with a rectangular through holes, the middle part of through hole is inlaid with catch I(10), the top of last two the rectangle grooves of sliding shoe (3) is inlaid with locating piece (13), limit spring (15) one ends and catch I(10) be connected, the other end is connected with locating piece (13).
6. according to claim 1 or 2 or 3 or the 4 or 5 described anti-stopping means of rushing to summit, it is characterized in that guide rail (6) is a tetragonal body, guide rail (6) upper end is provided with snap ring (9), snap ring (9) places on the outer surface of housing (1), guide rail (6) lower end is provided with boss, and the upper and lower surface of guide rail is provided with circular groove.
7. the anti-stopping means of rushing to summit according to claim 6, it is characterized in that depression bar (5) is a cylinder, the top of depression bar (5) upper end is provided with snap ring I, and the top of depression bar (5) upper end stretches out in the upper surface of guide rail (6), and depression bar (5) is fixed by snap ring I with guide rail (6).
8. the anti-stopping means of rushing to summit according to claim 7 is characterized in that being with back-moving spring (7) in the depression bar cap (8), and depression bar cap (8) is connected on the housing (1) by screw.
9. the anti-stopping means of rushing to summit according to claim 8, it is characterized in that the described anti-stopping means of rushing to summit also comprises a shell, shell is made of shell body and casing cover, and shell body is provided with incoming line and line outlet, and shell body and casing cover fasten and pass through screw.
10. the anti-stopping means of rushing to summit according to claim 9 is characterized in that the buffer spring (12) of the last socket of depression bar (5) is positioned at the lower surface place of guide rail (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010268103 CN102074390B (en) | 2010-09-01 | 2010-09-01 | Top-impacting-prevention limit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010268103 CN102074390B (en) | 2010-09-01 | 2010-09-01 | Top-impacting-prevention limit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102074390A true CN102074390A (en) | 2011-05-25 |
| CN102074390B CN102074390B (en) | 2012-12-26 |
Family
ID=44032894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010268103 Expired - Fee Related CN102074390B (en) | 2010-09-01 | 2010-09-01 | Top-impacting-prevention limit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102074390B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044555A (en) * | 2016-08-18 | 2016-10-26 | 徐静 | Anti-impact device of electric hoist |
| WO2018204997A1 (en) * | 2017-05-08 | 2018-11-15 | Weg Drives & Controls- Automação Ltda. | Rapid-action electric switch and method for mounting a rapid-action electric switch |
| CN113075085A (en) * | 2021-02-23 | 2021-07-06 | 湖南临风医疗器械有限公司 | Automatic monitor for urine specific gravity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4325981C1 (en) * | 1993-06-24 | 1994-12-22 | Wagner Heinrich Sinto Masch | Apparatus for the production of openings in a casting mould |
| US5939685A (en) * | 1998-08-20 | 1999-08-17 | Metrol Co., Ltd. | Stopping device with a switch |
| JP2000149695A (en) * | 1998-11-04 | 2000-05-30 | Mitsuba Corp | Movable contact supporting member of limit switch |
| CN201430091Y (en) * | 2009-07-09 | 2010-03-24 | 倪向勇 | Press-rod forced-open type limit switch |
| CN201804729U (en) * | 2010-09-01 | 2011-04-20 | 胡建强 | Anti-top collision limiting device |
-
2010
- 2010-09-01 CN CN 201010268103 patent/CN102074390B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4325981C1 (en) * | 1993-06-24 | 1994-12-22 | Wagner Heinrich Sinto Masch | Apparatus for the production of openings in a casting mould |
| US5939685A (en) * | 1998-08-20 | 1999-08-17 | Metrol Co., Ltd. | Stopping device with a switch |
| JP2000149695A (en) * | 1998-11-04 | 2000-05-30 | Mitsuba Corp | Movable contact supporting member of limit switch |
| CN201430091Y (en) * | 2009-07-09 | 2010-03-24 | 倪向勇 | Press-rod forced-open type limit switch |
| CN201804729U (en) * | 2010-09-01 | 2011-04-20 | 胡建强 | Anti-top collision limiting device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044555A (en) * | 2016-08-18 | 2016-10-26 | 徐静 | Anti-impact device of electric hoist |
| CN106044555B (en) * | 2016-08-18 | 2017-03-15 | 徐静 | A kind of electric block anticollision device, collision-prevention device |
| WO2018204997A1 (en) * | 2017-05-08 | 2018-11-15 | Weg Drives & Controls- Automação Ltda. | Rapid-action electric switch and method for mounting a rapid-action electric switch |
| CN113075085A (en) * | 2021-02-23 | 2021-07-06 | 湖南临风医疗器械有限公司 | Automatic monitor for urine specific gravity |
| CN113075085B (en) * | 2021-02-23 | 2024-06-07 | 湖南临风医疗器械有限公司 | Automatic urine specific gravity monitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102074390B (en) | 2012-12-26 |
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Owner name: MINYANG GROUP COMPLETE SET ELECTRIC (XIANJU) CO.,L Free format text: FORMER OWNER: HU JIANQIANG Effective date: 20130425 |
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Effective date of registration: 20130425 Address after: 317300, No. 6, Feng Xi Road, Yongan Economic Development Zone, Xianju County, Taizhou, Zhejiang Patentee after: Minyang group complete electrical (Xianju) Limited Address before: 325604 Changfeng Village, Liushi Town, Yueqing City, Zhejiang, Wenzhou Patentee before: Hu Jianqiang |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20160901 |