CN209536730U - A kind of machine-room-less speed limiter - Google Patents
A kind of machine-room-less speed limiter Download PDFInfo
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- CN209536730U CN209536730U CN201822058467.8U CN201822058467U CN209536730U CN 209536730 U CN209536730 U CN 209536730U CN 201822058467 U CN201822058467 U CN 201822058467U CN 209536730 U CN209536730 U CN 209536730U
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Abstract
The utility model relates to elevator car safety technical fields, refer in particular to a kind of machine-room-less speed limiter, including the rope wheel component being installed on mainframe in mainframe, mainframe by main shaft, the click component swung with the rotation of rope wheel component and in rope wheel component overspeed rotation by click component trigger motor switch component, click component include ratchet, pawl and limit tension spring component；Bearing is provided on pawl, the outer wall of bearing is enclosed with layer of polyurethane；Reseting disk is provided on ratchet, one end of pawl is provided with for cooperating the inclined-plane abutted with trip(ping) bar.The utility model structure is simple, can reach the requirement that automatically resets, and also can avoid collision when operating normally, and overcomes the abnormal sound that ratchet and pawl collision generate when resetting in the prior art；In addition, the outer wall in bearing is enclosed with layer of polyurethane and makes bearing mechanical strength with higher and oxidation stability, guarantees that bearing can be used for a long time, guarantee the reliability of the utility model.
Description
Technical field
The utility model relates to elevator car safety technical fields, refer in particular to a kind of machine-room-less speed limiter.
Background technique
The limiter of speed of elevator is lift running safety control device, is used for when elevator speed exceeds the speed limit pre-set velocity,
It takes urgent measure to the operation of elevator, avoids the generation of dangerous situation.Bidirectional speed limiter for elevator general work principle is in electricity
Movement velocity when lift car uplink and downlink is detected in terraced operational process, once the movement velocity of lift car is beyond default
Range then makes the movement of cutting elevator traction electromechanical source first, if carriage continues to make braking steel without stopping at once
The movement of cord.Wirerope referred herein refers to wirerope rather than elevator jackstay, the steel wire around governor sheave
One end of rope is connected on car safety, is moved up and down with carriage, thus can drive rope sheave Double-directional rotary, once the wirerope
It is braked, then safety tongs can clamp elevator rail automatically and enable carriage deceleration stop.Prevent carriage super in this way, limiter of speed can be realized
The purpose of speed operation, to avoid the generation of dangerous situation.
But generally there are following Railway Projects for existing limiter of speed:
1, when Elevator landing opens the door passenger's perhaps cargo up and down when passenger is full or cargo is heavier, carriage is had
A degree of to move down, even if it is safe distance that this, which moves down distance, limiter of speed is easy to produce erroneous judgement at this time, cuts off traction electromechanical source
And the operation of safety tongs locking elevator is triggered, influence the normal operation of elevator；
2, since existing elevator is when door is opened, the pop-up of limiter of speed electromagnet comes, when elevator goes further dynamic 30mm, speed limit
Device does not walk idle stroke, and limiter of speed is caused to act, and downlink lifts safety tongs movement, and uplink lifts rope brake movement, so cannot
Carry out advance door opening movement, thus enabling of the existing elevator in leveling and shutdown movement be after elevator stops completely
Switch door operation is carried out, in the operation of high-rise express lift (the general speed of service is 2.0m/s or 2.5m/s or more), this
The operational efficiency of elevator can be greatly reduced in the switch gate control operation of class.Existing high level express lift is also that part elevator has and mentions
Button fly front function, but this function is intended to the execution logic of modification operation program and release mechanism, setting up procedure is complicated, cost compared with
It is high.Has the patent document for solving technical problem as above at present, such as application No. is 201720975136.3, patent name is novel
The technical solution of machine room bidirectional speed limiter, this application number is more traditional, is carried out certainly using the effect of the torsional spring power on pawl
It is dynamic to reset, continuous collision occurs mechanical action Shi Huiyu ratchet occurs, specified movement speed will appear different when being more than 1.0m/s
It rings；Therefore the patent document the technical issues of on, this is improved.
Summary of the invention
The utility model provides a kind of machine-room-less speed limiter for problem of the prior art, and structure is simple, can reach certainly
Dynamic to reset requirement, also collision when avoidable normal operation overcomes ratchet and pawl when resetting in the prior art to collide generation
Abnormal sound；In addition, the outer wall in bearing is enclosed with layer of polyurethane and makes bearing mechanical strength with higher and oxidation stability, protect
Card bearing can be used for a long time, and guarantee the reliability of the utility model.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution:
A kind of machine-room-less speed limiter provided by the utility model, including being pacified in mainframe, the mainframe by main shaft
Loaded on mainframe rope wheel component, the click component that is swung with the rotation of rope wheel component and in rope wheel component it is super
The motor switch component triggered when speed rotation by click component turns when rope wheel component is rotated by the drive of wirerope
When speed exceeds pre-set velocity, click component triggers motor switch component cutting elevator traction electromechanical source and then locking pulley set
Part, trip(ping) bar is additionally provided on the rope wheel component, and the click component includes ratchet, pawl and limit tension spring group
Part, a side surface of ratchet are equipped with banking pin, and banking pin side is connected on the inside of mainframe by limiting tension spring component, mainframe
A horizontal arc groove is equipped at upper corresponding banking pin；The pawl is the pawl that automatically resets, and is equipped with one in the side of ratchet
The trigger board matched with pawl, the trigger board side, which is equipped with pushing tow trigger board, makes trigger unit deflect to triggering and pine
Open the first electromagnet of pawl；Bearing is provided on the pawl, the outer wall of bearing is enclosed with layer of polyurethane；It is set on the ratchet
It is equipped with the reseting disk for jacking up bearing, one end of the pawl is provided with for cooperating the inclined-plane abutted with trip(ping) bar.
Wherein, the pawl is movably installed on rope wheel component by torsional spring.
Wherein, the rope wheel component includes the wire rope pulley for coiling wirerope, and wirerope is around as wire rope pulley
In steel wire rope groove on lateral wall, the steel wire rope groove is V-shaped groove.
Wherein, the rope wheel component further includes the second electromagnet for cooperating with wire rope pulley, the wire rope pulley
Outer surface be equipped with covering outer surface edge electromagnet matching ring, the edge of the lateral surface of the electromagnet matching ring
Place is equipped with mating groove, and mating groove equal intervals are equipped with multiple shrinkage pools for cooperating with the telescopic rod of the second electromagnet.
Wherein, the top of ratchet is equipped with the electromagnet stent for installing the second electromagnet, and ratchet is to upper electronic switching group
Part side is equipped with switch guide, and the lower section of ratchet is equipped with a braking pin mount, and the banking pin is installed on braking pin mount
On.
Wherein, mounting hole is set at corresponding braking pin mount on the ratchet, and the braking pin mount welding is solid
It is scheduled in mounting hole, banking pin is fixed on braking pin mount by fastener.
Wherein, the position of the telescopic rod of corresponding second electromagnet is equipped with telescopic rod reinforced seat on the electromagnet stent.
Wherein, the quantity of the shrinkage pool is 6.
Wherein, the limit tension spring component includes locating part, the return unit being set in locating part and is used for and braking
The loop bar of pin connection, the return unit include compressed spring and the first connection sheet for being respectively arranged at compressed spring both ends and
Two connection sheets, the first connection sheet are fixedly connected with the side of locating part inner wall, and the second connection sheet is fixedly connected with one end of loop bar,
The other end and braking pin connection, the second connection sheet of loop bar are abutted with the other side of locating part inner wall, and locating part is provided with for set
The perforation that bar passes through, described one end of loop bar are fixedly connected after passing through perforation with the second connection sheet.
Wherein, the locating part is fixedly connected on the mainframe, and the locating part is in " Jiong " font；The loop bar setting
There is the lantern ring for entangling banking pin.
The utility model has the beneficial effects that
The utility model structure is simple, can make banking pin and ratchet coupling part more after ratchet increases reseting disk
It is firm；Tail portion one end of pawl lengthen and is extended with for cooperating the inclined-plane abutted with trip(ping) bar, inclined-plane and tripping are passed through
Bar contact, and can suitably increase the torsional spring power on trip(ping) bar, only need to be by carriage to phase when mechanical action occurs for limiter of speed
Reverse direction operation can reset, the bearing when rope wheel component of limiter of speed moves in the opposite direction on pawl with reseting disk to
On lift, when reaching highest point, trip(ping) bar pushes down the inclined-plane of pawl, after trip(ping) bar pushes down inclined-plane, work of the pawl in torsional spring power
Continue to raise under, meanwhile, realize the reset of limiter of speed, the utility model can reach the requirement that automatically resets, and also can avoid just
Often collision when operation overcomes the abnormal sound that ratchet and pawl collision generate when resetting in the prior art；In addition, in the outer wall of bearing
It is enclosed with layer of polyurethane and makes bearing mechanical strength with higher and oxidation stability, guarantee that bearing can be used for a long time, protect
Demonstrate,prove the reliability of the utility model.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of machine-room-less speed limiter of the utility model.
Fig. 2 is a kind of cross-sectional view of machine-room-less speed limiter of the utility model.
Fig. 3 is the structural schematic diagram of the wire rope pulley of the utility model.
Fig. 4 is the structural schematic diagram of the pawl of the utility model.
Appended drawing reference in Fig. 1 to Fig. 4 includes:
1-mainframe 2-rope wheel component, 3-click component
4-motor switch component 5-ratchet, 6-pawls
7-limit 8-banking pin of tension spring component, 9-arc grooves
10-trigger board 12-bearings of the 11-the first electromagnet
13-14-reseting disk of layer of polyurethane, 15-inclined-planes
16-the 18-the second electromagnet of 17-steel wire rope groove of wire rope pulley
21-shrinkage pools
22-23-switch guide of electromagnet stent, 24-braking pin mounts
25-mounting hole 26-telescopic rod, 27-locating parts of reinforced seat
28-the 30-the first connection sheets of 29-compressed spring of loop bar
31-the second 32-lantern ring of connection sheet.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.The utility model is carried out below in conjunction with attached drawing
Detailed description.
A kind of machine-room-less speed limiter, as shown in Figures 1 to 4, including being pacified in mainframe 1, the mainframe 1 by main shaft
Loaded on rope wheel component 2, the click component 3 that is swung with the rotation of rope wheel component 2 and in pulley set on mainframe 1
The motor switch component 4 triggered when 2 overspeed rotation of part by click component 3, is turned in rope wheel component 2 by the drive of wirerope
When revolving speed when dynamic exceeds pre-set velocity, click component 3 triggers motor switch component 4 and cuts off elevator traction electromechanical source in turn
Locking rope wheel component 2, trip(ping) bar 33 is additionally provided on the rope wheel component 2, and the click component 3 includes ratchet 5, spine
Pawl 6 and limit tension spring component 7, a side surface of ratchet 5 are equipped with banking pin 8, and 8 side of banking pin passes through limit tension spring component 7
It is connected to 1 inside of mainframe, is corresponded on mainframe 1 and is equipped with a horizontal arc groove 9 at banking pin 8；The pawl 6 is automatic
Pawl 6 is resetted, a trigger board 10 matched with pawl 6 is equipped in the side of ratchet 5, is equipped with pushing tow by the trigger board 10
Trigger board 10 makes trigger unit deflect to trigger and unclamp the first electromagnet 11 of pawl 6；Axis is provided on the pawl 6
12 are held, the outer wall of bearing 12 is enclosed with layer of polyurethane 13；The reseting disk 14 for jacking up bearing 12 is provided on the ratchet 5,
One end of the pawl 6 is provided with for cooperating the inclined-plane 15 abutted with trip(ping) bar 33.
Specifically, when elevator is run, the centrifugal hammer in rope wheel component 2 works as upstream or downstream for detecting overspeed condition
When hypervelocity, ratchet 5 in centrifugal hammer driving pawl pawl assembly 3 and pawl 6 are combined, realize ratchet 5 and rope wheel component 2 with
It is dynamic；Or the second electromagnet 18 is directly controlled by electric signal when detecting accidental movement, it is real after the second electromagnet 18 stretches out
Existing ratchet 5 is servo-actuated with what is omitted.As people on elevator or cargo, if weight increases suddenly, carriage has certain amplitude
Sink, but be still in safe range at this time, even if so ratchet 5 and rope sheave are servo-actuated at this time, since banking pin 8 is in arc groove
There is one section to walk idle stroke in 9, so not triggering rope brake or safety tongs movement, elevator still can operate normally, the present embodiment
It is middle by the elevator sinking distance controlling in 30mm.Likewise, when elevator will reach leveling, reach 30mm can shift to an earlier date into
Row door opening action does not trigger accidental movement at this time, improves elevator operating efficiency, and patrolling it is not necessary to modify elevator safety protection mechanism
Volume, simple possible；And on this basis, increasing reseting disk 14 on ratchet 5, it is preferred that reseting disk 14 assumes diamond in shape setting,
Ratchet 5 can make banking pin 8 and 5 coupling part of ratchet more firm after increasing reseting disk 14；Pawl 6 is still using traditional
33 trigger architecture of trip(ping) bar carries out tail portion one end of pawl 6 to lengthen the inclined-plane being extended with for abutting with the cooperation of trip(ping) bar 33
15, it is contacted by inclined-plane 15 with trip(ping) bar 33, and can suitably increase the torsional spring power on trip(ping) bar 33, when machine occurs for limiter of speed
When tool acts, only carriage need to be run round about and can be resetted, when the rope wheel component 2 of limiter of speed moves in the opposite direction
Bearing 12 on pawl 6 is lifted up with reseting disk 14, and when reaching highest point, trip(ping) bar 33 pushes down the inclined-plane 15 of pawl 6,
After trip(ping) bar 33 pushes down inclined-plane 15, pawl 6 continues to raise under the action of torsional spring power, the distance raised about 3mm, meanwhile, it realizes
The reset of limiter of speed, the utility model can reach the requirement that automatically resets, and also can avoid collision when operating normally, and the volume
Constant speed degree can reach 2.5m/s, overcome the abnormal sound that ratchet 5 and the collision of pawl 6 generate when resetting in the prior art；In addition, in axis
It holds 12 outer wall to be enclosed with layer of polyurethane 13 and make the mechanical strength with higher of bearing 12 and oxidation stability, guarantees bearing 12
It can be used for a long time, guarantee the reliability of the utility model.
In addition, the switch button for triggering the first electromagnet 11 can be located at control cabinet by the remote controlled manner of the application,
When the first electromagnet 11 is powered, iron core stretches out upwards, and trigger board 10 is jacked up；Rope wheel component 2 continues to rotate, and is being surrounded by poly- ammonia
The bearing 12 of ester layer 13 can be pressed downward when passing through trigger board 10 by it so that pawl 6 is detached from trip(ping) bar 33, to realize remote machine
Tool movement rotates forward, reversion can all be realized.
A kind of machine-room-less speed limiter described in the present embodiment, the pawl 6 are movably installed in rope wheel component 2 by torsional spring
On.
A kind of machine-room-less speed limiter described in the present embodiment, the rope wheel component 2 include the steel for coiling wirerope
Cord wheel 16, for wirerope in as the steel wire rope groove 17 on 16 lateral wall of wire rope pulley, the steel wire rope groove 17 is V-arrangement
Slot.Specifically, with the locking of rope wheel component 2, in carriage accidental movement, pulling function is generated to wirerope, wirerope is to V
Movement in shape slot, with the gradually diminution of V-shaped groove width, wirerope the more presss from both sides the more tight in V-shaped groove, realizes the touching to safety tongs
Hair.
A kind of machine-room-less speed limiter described in the present embodiment, the rope wheel component 2 further include for matching with wire rope pulley 16
The second electromagnet 18 closed, the outer surface of the wire rope pulley 16 are equipped with the electromagnet matching ring at covering outer surface edge
The edge of (not indicating in figure), the lateral surface of the electromagnet matching ring is equipped with mating groove (not indicating in figure), electromagnet
Matching ring and mating groove are the prior art, and mating groove equal intervals are equipped with multiple telescopic rods for the second electromagnet 18
The shrinkage pool 21 of cooperation；The top of ratchet 5 is equipped with the electromagnet stent 22 for installing the second electromagnet 18, and ratchet 5 is to upper electronic
4 side of switch block is equipped with switch guide 23, and the lower section of ratchet 5 is equipped with a braking pin mount 24, and the banking pin 8 is installed on
It brakes on pin mount 24；Mounting hole 25, the banking pin installation are set at corresponding braking pin mount 24 on the ratchet 5
Seat 24 is weldingly fixed in mounting hole 25, and banking pin 8 is fixed on braking pin mount 24 by fastener；The electromagnet
The position of the telescopic rod of corresponding second electromagnet 18 is equipped with telescopic rod reinforced seat 26 on bracket 22；The quantity of the shrinkage pool 21 is 6
It is a.
Specifically, reaction force can be generated when reaching 9 end of arc groove due to banking pin 8, so banking pin 8 needs foot
Enough intensity holdings, which are not knocked, to fall off, in order to improve the intensity of banking pin 8, in the present embodiment, and corresponding system on the ratchet 5
A mounting hole 25 is preset at dynamic pin mount 24, the braking pin mount 24 is weldingly fixed in mounting hole 25, braking
Pin 8 is fixed on braking pin mount 24 by fastener, and structure is simple, reliable.Simultaneously as the second electromagnet 18 is stretching out
16 upper groove of Shi Huiyu wire rope pulley generates active force, in order to improve intensity, the second electromagnet 18 is prevented to be knocked damage when stretching out
It is bad；In the present embodiment, the position on the electromagnet stent 22 around corresponding second electromagnet, 18 telescopic rod is equipped with telescopic rod
Reinforced seat 26.The surrounding of second electromagnet 18 of 26 pairs of telescopic rod reinforced seat stretchings limits, and it is curved to occur to prevent its stress
The case where song, disengaging；In addition, being cooperated by groove with the second electromagnet 18, the second electromagnet 18 and wire rope pulley are improved
The accuracy of 16 cooperations, and groove reduces the difficulty of processing and casting difficulty of wire rope pulley 16 relative to traditional boss,
Shape is simple, beautiful, and the second electromagnet 18 of cooperation is more stable, reliable when working.
A kind of machine-room-less speed limiter described in the present embodiment, the limit tension spring component 7 include locating part 27, are set to limit
Return unit in the part 27 of position and the loop bar 28 for connecting with banking pin 8, the return unit include compressed spring 29 and divide
It is not set to first connection sheet 30 and the second connection sheet 31 at 29 both ends of compressed spring, the first connection sheet 30 and 27 inner wall of locating part
Side be fixedly connected, the second connection sheet 31 is fixedly connected with one end of loop bar 28, and the other end of loop bar 28 and banking pin 8 connect
It connects, the second connection sheet 31 is abutted with the other side of 27 inner wall of locating part, and locating part 27 is provided with the perforation passed through for loop bar 28, set
Described one end of bar 28 is fixedly connected after passing through perforation with the second connection sheet 31.Specifically, loop bar 28 is connect with banking pin 8, and
And using the connection relationship between compressed spring 29, the first connection sheet 30 and the second connection sheet 31, realize that limit tension spring component 7 is right
The reset of banking pin 8, and under the action of locating part 27, keep banking pin 8 at 9 middle part of arc groove；Compared with traditional structure,
The utility model only needs the cooperation of single compressed spring 29 and locating part 27 that can limit to banking pin 8, leads to traditional
It crosses two tension springs to compare to limit banking pin 8, two traditional tension springs can cause banking pin 8 mobile simultaneously, the structure of the application
Stability and accuracy are more preferable.
A kind of machine-room-less speed limiter described in the present embodiment, the locating part 27 is fixedly connected on the mainframe 1, described
Locating part 27 is in " Jiong " font；The loop bar 28 is provided with the lantern ring 32 for entangling banking pin 8.Specifically, lantern ring 32 entangles
Banking pin 8, guarantees the reliability that connect with banking pin 8 of loop bar 28, the locating part 27 of utilization " Jiong " font to compressed spring 29 into
Row limits and carries out position restriction to banking pin 8, and structure is reliable.
The above is only the utility model preferred embodiment, is not made in any form to the utility model
Limitation, although the utility model is disclosed as above with preferred embodiment, is not intended to limit the utility model, any to be familiar with sheet
Technical professional is not departing within the scope of technical solutions of the utility model, makes when using the technology contents of the disclosure above
A little change or the equivalent embodiment for being modified to equivalent variations, but it is all without departing from the content of the technical scheme of the utility model, foundation
The utility model technology refers to any simple modification, equivalent change and modification to the above embodiments, belongs to practical
In the range of new technique scheme.
Claims (10)
1. a kind of machine-room-less speed limiter, including the rope sheave being installed in mainframe, the mainframe by main shaft on mainframe
Component, the click component swung with the rotation of rope wheel component and in rope wheel component overspeed rotation by click
The motor switch component of component triggering, when the revolving speed when rope wheel component is rotated by the drive of wirerope exceeds pre-set velocity,
Click component triggers motor switch component cutting elevator traction electromechanical source and then locking rope wheel component, on the rope wheel component
It is additionally provided with trip(ping) bar, it is characterised in that: the click component includes ratchet, pawl and limit tension spring component, spine
One side surface of wheel is equipped with banking pin, and banking pin side is connected on the inside of mainframe by limiting tension spring component, right on mainframe
It answers and is equipped with a horizontal arc groove at banking pin；The pawl is the pawl that automatically resets, and is equipped with one and spine in the side of ratchet
The trigger board that pawl matches, the trigger board side, which is equipped with pushing tow trigger board, makes trigger unit deflect to trigger and unclamp spine
First electromagnet of pawl；Bearing is provided on the pawl, the outer wall of bearing is enclosed with layer of polyurethane；It is provided on the ratchet
For jacking up the reseting disk of bearing, one end of the pawl is provided with for cooperating the inclined-plane abutted with trip(ping) bar.
2. a kind of machine-room-less speed limiter according to claim 1, it is characterised in that: the pawl is installed by torsional spring activity
In on rope wheel component.
3. a kind of machine-room-less speed limiter according to claim 1, it is characterised in that: the rope wheel component include for around
The wire rope pulley of wirerope processed, for wirerope in as the steel wire rope groove on wire rope pulley lateral wall, the steel wire rope groove is V
Shape slot.
4. a kind of machine-room-less speed limiter according to claim 3, it is characterised in that: the rope wheel component further include for
Second electromagnet of wire rope pulley cooperation, the outer surface of the wire rope pulley are equipped with the electromagnet at covering outer surface edge
The edge of matching ring, the lateral surface of the electromagnet matching ring is equipped with mating groove, and mating groove equal intervals are equipped with multiple
For the shrinkage pool with the cooperation of the telescopic rod of the second electromagnet.
5. a kind of machine-room-less speed limiter according to claim 4, it is characterised in that: the top of ratchet is equipped with for installing the
The electromagnet stent of two electromagnet, ratchet are equipped with switch guide to upper electronic switch block side, and the lower section of ratchet is equipped with a system
Dynamic pin mount, the banking pin are installed on braking pin mount.
6. a kind of machine-room-less speed limiter according to claim 5, it is characterised in that: correspond to banking pin peace on the ratchet
It fills and mounting hole is set at seat, the braking pin mount is weldingly fixed in mounting hole, and banking pin is fixed on system by fastener
On dynamic pin mount.
7. a kind of machine-room-less speed limiter according to claim 5, it is characterised in that: corresponding the on the electromagnet stent
The position of the telescopic rod of two electromagnet is equipped with telescopic rod reinforced seat.
8. a kind of machine-room-less speed limiter according to claim 4, it is characterised in that: the quantity of the shrinkage pool is 6.
9. a kind of machine-room-less speed limiter according to claim 1, it is characterised in that: the limit tension spring component includes limit
Part, the return unit being set in locating part and for the loop bar with braking pin connection, the return unit include compressed spring with
And it is respectively arranged at first connection sheet and the second connection sheet at compressed spring both ends, the side of the first connection sheet and locating part inner wall
Be fixedly connected, the second connection sheet is fixedly connected with one end of loop bar, the other end of loop bar and braking pin connection, the second connection sheet with
The other side of locating part inner wall abuts, and locating part is provided with the perforation passed through for loop bar, after described one end of loop bar passes through perforation
It is fixedly connected with the second connection sheet.
10. a kind of machine-room-less speed limiter according to claim 9, it is characterised in that: the locating part is fixedly connected on institute
Mainframe is stated, the locating part is in " Jiong " font；The loop bar is provided with the lantern ring for entangling banking pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822058467.8U CN209536730U (en) | 2018-12-07 | 2018-12-07 | A kind of machine-room-less speed limiter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822058467.8U CN209536730U (en) | 2018-12-07 | 2018-12-07 | A kind of machine-room-less speed limiter |
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| Publication Number | Publication Date |
|---|---|
| CN209536730U true CN209536730U (en) | 2019-10-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516335A (en) * | 2018-12-07 | 2019-03-26 | 中山职业技术学院 | A kind of machine-room-less speed limiter |
| CN109516335B (en) * | 2018-12-07 | 2024-04-26 | 中山职业技术学院 | No computer lab overspeed governor |
-
2018
- 2018-12-07 CN CN201822058467.8U patent/CN209536730U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109516335A (en) * | 2018-12-07 | 2019-03-26 | 中山职业技术学院 | A kind of machine-room-less speed limiter |
| CN109516335B (en) * | 2018-12-07 | 2024-04-26 | 中山职业技术学院 | No computer lab overspeed governor |
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