CN204610639U - Drum brake list group manually declutches spanner - Google Patents
Drum brake list group manually declutches spanner Download PDFInfo
- Publication number
- CN204610639U CN204610639U CN201520184009.2U CN201520184009U CN204610639U CN 204610639 U CN204610639 U CN 204610639U CN 201520184009 U CN201520184009 U CN 201520184009U CN 204610639 U CN204610639 U CN 204610639U
- Authority
- CN
- China
- Prior art keywords
- driving lever
- arm
- pressure section
- adjusting head
- spanner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Braking Arrangements (AREA)
Abstract
A kind of drum brake list group that relates to the utility model manually declutches spanner, comprises the first arm, the second arm.First arm comprises the first driving lever, first laying respectively at its two ends and drives bar, and the second arm comprises one end second driving lever corresponding with the first driving lever position and is positioned at second of the other end and drives bar.First arm, the second arm are hinged and can relatively rotate between the first position and the second position, and the first driving lever, the second driving lever are respectively equipped with the first pressure section, the second pressure section.First arm, the second arm are when primary importance, and the first driving lever, the second driving lever are close to each other, and the distance between the first pressure section, the second pressure section is suitable with the interval between the brake arm of drum brake and coil cap; First arm, the second arm when the second place, the first pressure section, the second pressure section mutually away from, with order about brake arm and coil cap mutually away from.The utility model drives brake arm away from coil cap, thus realizes testing the braking ability of other brake arm.
Description
Technical field
The utility model relates to the elevator instruments of inspection, more particularly, relates to a kind of drum brake list group and manually to declutch spanner.
Background technique
Break is the very important safety component of elevator, once lose efficacy, may cause car squat the end, rush to summit, open the door and to run so that generation personnel are subject to shearing the serious consequence such as injury.So the braking system of elevator, except electric braking, also should have the break of a machine-electric-type frictional, and it has had both the function of parking braking and service brake.
The broad form of elevator brake has drum-type and disc type, drum brake is because structure is simple, cost is lower, be widely used in asynchronous motor hoist machine and quite most synchronous machine hoist machine, the freight elevator and a considerable amount of passenger lift that comprise the overwhelming majority all adopt such break.In these drum brakes, except the blocking type drum brake that minority master synchronization adopts both sides separately to install, most brake design is all only equipped with a set of manual brake release, Figure 2 shows that modal a kind of elevator drum brake.
Identifier declaration in Fig. 2: 1-brake hub, 2-brake arm, 3-brake block, 4-holddown spring, the two-way rotating shaft of declutching of 5-, 6-declutches spanner, and 7-declutches coil, and 8-declutches gap adjustment bolt, 9-iron core.
In " elevator manufacture and installation safety standard " (GB7588-2003), there are following provisions to the machine-electric-type break of elevator:
12.4.2.1, when car is loaded with 125% load rating and runs downwards with rated velocity, operational brake should be able to make hoist machine shut down.In these cases, the retardation of car should not exceed the retardation that catch block action or car cushion at collision produce.
The break mechanical part that all participations apply braking force to Brake drum or dish should divide into groups to install.If one group of parts is inoperative, enough braking force should be still had to make to be loaded with load rating and to slow down descending with the car that rated velocity is descending.
12.4.2.4, the elevator drive main frame of manual emergency operation equipment is housed, also should be able to needs to keep its releasing orientation with a vitality with hand release brake.
As can be seen here, as the important safety parts of elevator, GB7588-2003 has certain safety redundancy requirement to elevator brake in stopping power, can make to be loaded with the car of 125% load rating and shut down with the hoist machine that rated velocity is descending when break normally works; In reliability, require mechanical part grouping installing, if wherein one group of mechanical part is inoperative, it is descending with the car deceleration that rated velocity is descending that another group parts still have enough braking force to make to be loaded with load rating.When declutch spanner 6 in the raw time, the brake block 3 of 2 groups of (or many groups) Separate Brakes all should keep band-type brake state.
In the daily inspection that elevator brake is carried out, we once found, such device processed shown in some Fig. 2 causes brake block 3 inordinate wear owing to adjusting the reasons such as not in place or the long-term band-type brake operation of break, be in the state only having one group of braking device in work for a long time, in the initial stage only having one group of braking device to work, elevator often also can normally work, because the working clearance between brake block 3 and brake hub 1 is very little, the one group of brake block 3 many times lost efficacy looks when elevator brake and seems still to be fitted on brake hub 1, above-mentioned situation relies on range estimation often can not to be found easily, after generation overload or another group break also go wrong, elevator safety accident can be caused.
In the process of the test of such drum brake stopping power of inspection, due to two groups of mechanical parts action simultaneously of break, the stopping power of the list group break mechanical part required in the 12.4.2.1 of GB7588-2003 fails to be verified, if the usefulness that there is single group mechanical part reduces or total failure, be also difficult to find according to existing stop test method.
Trace it to its cause, relevant with the structural feature of such break, as shown in Figure 2, when break power-off, under the effect of holddown spring 4, brake block 3 is installed and the brake arm 2 of the gap adjustment bolt 8 that declutches, the spacing of 2 mechanical components may be subject to, 1. be subject to the spacing of brake hub 1 by brake block 3, be 2. subject to the spacing of iron core 9 by the gap adjustment bolt 8 that declutches, or 2 limit elements all work.When break normally works, when break power-off, the brake block 3 be arranged on brake arm 2 is only subject to spacing (as Fig. 3 left group mechanical part) of brake hub 1, namely brake block 3 is close on brake hub 1 and brakes (d1 is zero) to brake hub 1, and the gap adjustment bolt 8 that declutches be arranged on brake arm 2 does not contact with iron core 9, but keep very little gap (c1 of Fig. 3), but, if break adjustment is improper, or brake block 3 inordinate wear, when break power-off, under the effect of holddown spring 4, the gap adjustment bolt 8 that declutches be arranged on brake arm 2 is subject to spacing (in Fig. 3, c2 is zero) of right side iron core 9, brake block 3 is caused not contact with brake hub 1, namely there is a gap (d2 in Fig. 3), or during break power-off, brake arm 2 contacts iron core 9 and brake hub 1 simultaneously, this will run to elevator and leave sizable potential safety hazard.
Model utility content
The technical problems to be solved in the utility model is, provides a kind of drum brake list group manually to declutch spanner.
The utility model solves the technological scheme that its technical problem adopts: construct a kind of drum brake list group and manually to declutch spanner, comprise the first arm, the second arm;
Described first arm comprises the first driving lever, first laying respectively at its two ends and drives bar, described second arm comprises one end second driving lever corresponding with described first driving lever position and is positioned at second of the other end and drives bar, described first arm, the second arm are hinged and can relatively rotate between the first position and the second position, and the two-phase dorsal part of the first driving lever, the second driving lever is respectively equipped with the first pressure section, the second pressure section;
Described first arm, the second arm are when described primary importance, and described first driving lever, the second driving lever are close to each other, and the distance between described first pressure section, the second pressure section is suitable with the interval between the brake arm of described drum brake and coil cap;
Described first arm, the second arm when the described second place, described first pressure section, the second pressure section mutually away from, with order about described brake arm and described coil cap mutually away from.
Preferably, described first pressure section and the opposing side of described second driving lever are provided with height of projection adjustably the first adjusting head, to make the distance between the end of described first adjusting head to described second driving lever adjustable; And/or,
Described second pressure section and the opposing side of described first driving lever are provided with the second adjustable adjusting head of height of projection, to make the distance between the end of described second adjusting head to described first driving lever adjustable.
Preferably, described first adjusting head comprises the screw rod with described first driving lever screw-thread fit, to regulate the height of projection of described first adjusting head, described second adjusting head comprises the screw rod with described second driving lever screw-thread fit, to regulate the height of projection of described second adjusting head, and the position of described first adjusting head is corresponding with the position of described second adjusting head.
Preferably, described first adjusting head is detachably arranged on described first driving lever drives bar one end away from described first, and described second adjusting head is detachably arranged on described second driving lever drives bar one end away from described second.
Preferably, described first arm also comprises the first hinged seat being positioned at described first driving lever and the described second relative side of driving lever, and described first pressure section and described first that described first hinged seat is located at described first arm drives the region between bar; Described second arm also comprises the second hinged seat being positioned at described second driving lever and the described first relative side of driving lever, and described second pressure section and described second that described second hinged seat is located at described second arm drives the region between bar; Described first hinged seat and the second hinged seat are hinged, and hinge axes is between described first driving lever and the second driving lever.
Preferably, described first driving lever and described second driving lever spacing side by side are arranged, and are parallel to each other or arrange in angle.
Preferably, described in the spanner that declutches comprise different multiple first adjusting heads of length, described first drives bar is provided with the first storing unit for depositing for described first adjusting head;
The described spanner that declutches also comprises different multiple second adjusting heads of length, and described second drives bar is provided with the second storing unit deposited for described second adjusting head of confession.
Preferably, described first storing unit comprises at least one first thread bush with described first adjusting head screw-thread fit;
Described second storing unit comprises for the second thread bush with described second adjusting head screw-thread fit.
Preferably, described first arm and the second arm spacing side by side are arranged, described first drive bar and second drive bar near time, described first pressure section, the second pressure section mutually away from; Described first drive bar and second drive bar away from time, described first pressure section, the second pressure section are close to each other.
Preferably, described first drive bar and described second drive bar be angle arrange, and free end end mutually away from.
Implement drum brake list group of the present utility model manually to declutch spanner, there is following beneficial effect: the distance between two-phase dorsal part first pressure section of the first driving lever in the utility model, the second driving lever, the second pressure section is suitable with the interval between the brake arm of described drum brake and coil cap, first drive bar and second by holding with a firm grip and drive bar, brake arm can be driven away from coil cap, thus realize testing the braking ability of other brake arm.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is that drum brake list group in the utility model embodiment manually declutches the first pressure section of spanner, using state schematic diagram when the second pressure section coordinates with brake arm and coil cap respectively;
Fig. 2 is the structural representation of the elevator drum brake in background technique;
Fig. 3 is the state description schematic diagram of the mechanical part of the both sides of elevator drum brake in Fig. 2.
Embodiment
In order to there be understanding clearly to technical characteristics of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in Figure 1, drum brake list group in the utility model preferred embodiment spanner that manually declutches comprises the first arm 10, second arm 20, first arm 10 comprises the first driving lever 11, first laying respectively at its two ends and drives bar 12, second arm 20 comprises one end second driving lever 21 corresponding with the first driving lever 11 position and is positioned at second of the other end and drives bar 22, and the first arm 10, second arm 20 is hinged and can relatively rotates between the first position and the second position.The two-phase dorsal part of the first driving lever 11, second driving lever 21 is respectively equipped with the first pressure section 111, second pressure section 211.
Further, first arm 10, second arm 20 is when primary importance, first driving lever 11, second driving lever 21 is close to each other, distance between first pressure section 111, second pressure section 211 of the first driving lever 11, second driving lever 21 two-phase dorsal part is suitable with the interval between the brake arm 30 of drum brake and coil cap 40, can put between brake arm 30 and coil cap 40.
Preferably, the first driving lever 11 is parallel with the second driving lever 21 to be arranged side by side, with the space size as far as possible shared by reduction, to be easily put between brake arm 30 and coil cap 40.Certainly, the first driving lever 11 and the second driving lever 21 also can be arranged in angle.First arm 10, second arm 20 is when the second place, first pressure section 111, second pressure section 211 of the first driving lever 11, second driving lever 21 two-phase dorsal part mutually away from, so that brake arm 30 can be ordered about away from coil cap 40, brake block on brake arm 30 is separated with brake hub, the braking ability of the brake arm 30 of opposite side is tested.
In certain embodiments, the first arm 10 also comprises and is positioned at the first pressure section 111 and first that the first driving lever 11 and the first hinged seat 13, first hinged seat 13 of the second relative side of driving lever 21 be located at the first arm 10 and drives region between bar 12.Second arm 20 also comprises and is positioned at the second pressure section 211 and second that the second driving lever 21 and the second hinged seat 23, second hinged seat 23 of the first relative side of driving lever 11 be located at the second arm 20 and drives region between bar 22.First hinged seat 13 and the second hinged seat 23 are hinged by coupling shaft, and hinge axes is between the first driving lever 11 and the second driving lever 21.Hinge axes determines to the distance of the first driving lever 11, second driving lever 21 end the distance swinging rear free end, and then determines brake arm 30 and the separable distance of coil cap 40.Brake arm 30 and the separable distance of coil cap 40 increase to the increase of the distance of the first driving lever 11, second driving lever 21 end with hinge axes.
Preferably, the first arm 10 and the second arm 20 spacing side by side are arranged, and lay respectively at the both sides of hinge axes, and first drive bar 12 and second drive bar 22 near time, the first driving lever 11, second driving lever 21 mutually away from; First drive bar 12 and second drive bar 22 away from time, the first driving lever 11, second driving lever 21 is close to each other.Further, first drives bar 12 and second drives bar 22 setting in angle, and free end end mutually away from, to increase the swingable angle between primary importance to the second place, and the distance increased between the first driving lever 11 and the first pressure section 111, second pressure section 211 of the two-phase dorsal part of the second driving lever 21 when the second place, the brake shoe on brake arm 30 is separated with wheel hub completely.When first drive bar 12 and second drive the spacing of bar 22 enough time, also can be arranged in parallel, the spacing swung when ensureing close to each other.
In other embodiments, the first arm 10 and the second arm 20 also can be arranged in a crossed manner, first drive bar 12 and second drive bar 22 near time, the first driving lever 11, second driving lever 21 is also close to each other; First drive bar 12 and second drive bar 22 away from time, the first driving lever 11, second driving lever 21 also mutual away from.
In certain embodiments, the first pressure section 111 and the opposing side of the second driving lever 21 are provided with height of projection adjustably the first adjusting head 112, to make the distance between the end of the first adjusting head 112 to the second driving lever 21 adjustable.First adjusting head 112 comprises the screw rod with the first driving lever 11 screw-thread fit, this screw rod rotates different positions, to regulate the height of projection of the first adjusting head 112, can make to declutch the first arm 10, second arm 20 of spanner like this when primary importance, the end of the first adjusting head 112 is adjustable to the distance of the second driving lever 21, to meet the different interval size between the brake arm 30 of drum brake and coil cap 40.
Preferably, the second pressure section 211 and the opposing side of the first driving lever 11 also can be provided with the second adjustable adjusting head 212 of height of projection, to make the distance between the end of the second adjusting head 212 to the first driving lever 11 adjustable.Second adjusting head 212 comprises the screw rod with the second driving lever 21 screw-thread fit, and this screw rod rotates different positions, to regulate the height of projection of the second adjusting head 212.In certain embodiments, the spanner that declutches can comprise different multiple first adjusting head 112, second adjusting heads 212 of length, selects the first adjusting head 112, second adjusting head 212 of different length according to the distance between brake arm 30 and coil cap 40.
In certain embodiments, the position of the first adjusting head 112 is corresponding with the position of the second adjusting head 212, certainly, can arrange respectively according to the corresponding position of brake arm 30 and coil cap 40.In other embodiments, the first adjusting head 112 and the second adjusting head 212 can be arranged simultaneously, also can individually arrange, can meet the different interval size between brake arm 30 and coil cap 40.
Further, the first adjusting head 112 is detachably arranged on the first driving lever 11 drives bar 12 one end away from first, and the second adjusting head 212 is detachably arranged on the second driving lever 21 drives bar 22 one end away from second.After first adjusting head 112 and the second adjusting head 212 are installed, the end of the first adjusting head 112 to the second adjusting head 212 end between distance adjustable.The spanner that declutches in the second place time, can make the end of the first adjusting head 112 to the second adjusting head 212 end between distance maximum, also the distance be separated with coil cap 40 by brake arm 30 maximizes, by the end to the second adjusting head 212 that adjust the first adjusting head 112 end between distance, to make brake arm 30 leave coil cap 40, and the brake shoe on brake arm 30 is separated completely with wheel hub.
In certain embodiments, first drive bar 12 be provided with for for the first adjusting head 112 deposit the first storing unit 14.Second drives bar 22 is provided with the second storing unit 24 deposited for confession the second adjusting head 212.When selecting the first adjusting head 112, second adjusting head 212 of different length, remaining first adjusting head 112, second adjusting head 212 can be deposited, and is convenient for changing, also can ensures to lose.
Further, the first storing unit 14 comprises for can be the parts such as nut with the first thread bush 142, first thread bush 142 of the first adjusting head 112 screw-thread fit.In other embodiments, the first adjusting head 112 also can directly be spirally connected with the first driving lever 11.Second storing unit 24 comprises for can be the parts such as nut with the second thread bush 242, second thread bush 242 of the second adjusting head 212 screw-thread fit.In other embodiments, the second adjusting head 212 also can directly be spirally connected with the second driving lever 21.
Understandably, above-mentioned each technical characteristics can combination in any use and unrestricted.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. drum brake list group manually declutches a spanner, it is characterized in that, comprises the first arm (10), the second arm (20);
Described first arm (10) comprises the first driving lever (11), first laying respectively at its two ends and drives bar (12), described second arm (20) comprises one end second driving lever (21) corresponding with described first driving lever (11) position and is positioned at second of the other end drives bar (22), described first arm (10), the second arm (20) are hinged and can relatively rotate between the first position and the second position, and the two-phase dorsal part of the first driving lever (11), the second driving lever (21) is respectively equipped with the first pressure section (111), the second pressure section (211);
Described first arm (10), the second arm (20) are when described primary importance, described first driving lever (11), the second driving lever (21) are close to each other, and the distance between described first pressure section (111), the second pressure section (211) is suitable with the interval between the brake arm (30) of described drum brake and coil cap (40);
Described first arm (10), the second arm (20) when the described second place, described first pressure section (111), the second pressure section (211) mutually away from, with order about described brake arm (30) and described coil cap (40) mutual away from.
2. drum brake list group according to claim 1 manually declutches spanner, it is characterized in that, the side that described first pressure section (111) is opposing with described second driving lever (21) is provided with height of projection adjustably the first adjusting head (112), to make the distance between the end of described first adjusting head (112) to described second driving lever (21) adjustable; And/or,
The side that described second pressure section (211) is opposing with described first driving lever (11) is provided with adjustable the second adjusting head (212) of height of projection, to make the distance between the end of described second adjusting head (212) to described first driving lever (11) adjustable.
3. drum brake list group according to claim 2 manually declutches spanner, it is characterized in that, described first adjusting head (112) comprises the screw rod with described first driving lever (11) screw-thread fit, to regulate the height of projection of described first adjusting head (112), described second adjusting head (212) comprises the screw rod with described second driving lever (21) screw-thread fit, to regulate the height of projection of described second adjusting head (212), and the position of described first adjusting head (112) is corresponding with the position of described second adjusting head (212).
4. the drum brake list group according to Claims 2 or 3 manually declutches spanner, it is characterized in that, described first adjusting head (112) is detachably arranged on described first driving lever (11) drives bar (12) one end away from described first, and described second adjusting head (212) is detachably arranged on described second driving lever (21) drives bar (22) one end away from described second.
5. the drum brake list group according to Claims 2 or 3 manually declutches spanner, it is characterized in that, described first arm (10) also comprises the first hinged seat (13) being positioned at described first driving lever (11) and the relative side of described second driving lever (21), and described first pressure section (111) and described first that described first hinged seat (13) is located at described first arm (10) drives the region between bar (12); Described second arm (20) also comprises the second hinged seat (23) being positioned at described second driving lever (21) and the relative side of described first driving lever (11), and described second pressure section (211) and described second that described second hinged seat (23) is located at described second arm (20) drives the region between bar (22);
Described first hinged seat (13) and the second hinged seat (23) are hinged, and hinge axes is positioned between described first driving lever (11) and the second driving lever (21).
6. drum brake list group according to claim 5 manually declutches spanner, it is characterized in that, described first driving lever (11) and described second driving lever (21) spacing side by side are arranged, and is parallel to each other or arranges in angle.
7. drum brake list group according to claim 4 manually declutches spanner, it is characterized in that, the described spanner that declutches comprises different multiple first adjusting heads (112) of length, and described first drives bar (12) is provided with the first storing unit (14) deposited for described first adjusting head (112) of confession;
The described spanner that declutches also comprises different multiple second adjusting heads (212) of length, and described second drives bar (22) is provided with the second storing unit (24) deposited for described second adjusting head (212) of confession.
8. drum brake list group according to claim 7 manually declutches spanner, and it is characterized in that, described first storing unit (14) comprises at least one first thread bush (142) with described first adjusting head (112) screw-thread fit;
Described second storing unit (24) comprises for the second thread bush (242) with described second adjusting head (212) screw-thread fit.
9. drum brake list group according to claim 5 manually declutches spanner, it is characterized in that, described first arm (10) and the second arm (20) spacing side by side are arranged, described first drive bar (12) and second drive bar (22) near time, described first pressure section (111), the second pressure section (211) mutually away from; Described first drive bar (12) and second drive bar (22) away from time, described first pressure section (111), the second pressure section (211) are close to each other.
10. drum brake list group according to claim 9 manually declutches spanner, it is characterized in that, described first drives bar (12) and described second drives bar (22) and arrange in angle, and free end end mutually away from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184009.2U CN204610639U (en) | 2015-03-30 | 2015-03-30 | Drum brake list group manually declutches spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184009.2U CN204610639U (en) | 2015-03-30 | 2015-03-30 | Drum brake list group manually declutches spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610639U true CN204610639U (en) | 2015-09-02 |
Family
ID=53963209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520184009.2U Expired - Fee Related CN204610639U (en) | 2015-03-30 | 2015-03-30 | Drum brake list group manually declutches spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979258A (en) * | 2017-05-03 | 2017-07-25 | 苏州蒙特纳利驱动设备有限公司 | The traction machine band-type brake of easy access |
| CN108340308A (en) * | 2018-01-05 | 2018-07-31 | 南宁市生润科技有限公司 | A kind of integral type brake cable slack adjuster |
-
2015
- 2015-03-30 CN CN201520184009.2U patent/CN204610639U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979258A (en) * | 2017-05-03 | 2017-07-25 | 苏州蒙特纳利驱动设备有限公司 | The traction machine band-type brake of easy access |
| CN108340308A (en) * | 2018-01-05 | 2018-07-31 | 南宁市生润科技有限公司 | A kind of integral type brake cable slack adjuster |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204610639U (en) | Drum brake list group manually declutches spanner | |
| CN205061234U (en) | Two -way overspeed governor with unexpected function that removes of monitoring elevator car | |
| EP3328782B1 (en) | Motor-operated crane drive | |
| CN204737537U (en) | Domestic terraced nimble formula safety tongs link gear | |
| CN106081783A (en) | A kind of electromagnetic brake preventing accidental movement of elevator cage and braking method | |
| CN203529648U (en) | Bi-directional speed limiter | |
| CN102923104A (en) | Standby brake device of automobile | |
| CN201647765U (en) | Emergency braking device used on traction sheave of traction machine | |
| CN104495563A (en) | Flexible safety gear linkage mechanism for home elevator | |
| CN108946374A (en) | A kind of elevator safety limiter of speed | |
| CN101830381B (en) | Emergency braking device acting on traction sheave of traction machine | |
| CN105923500A (en) | Elevator safety device | |
| CN202138945U (en) | Safety braking device for escalator or moving pavement | |
| CN204980687U (en) | Prevent elevator car unexpected movement safety device under door open mode | |
| CN205497304U (en) | Drum brake singly organizes manual spanner that declutches energetically | |
| CN207078948U (en) | Elevator drum brake single group declutches spanner manually | |
| CN201670680U (en) | Brake device of elevator tractor | |
| CN204079141U (en) | Accidental movement of elevator cage safety guard | |
| CN202481306U (en) | Airplane foot control brake mechanism | |
| CN205294538U (en) | Safety tongs aggregate unit | |
| CN205590212U (en) | Drum brake who takes self -lock device singly organizes manual spanner that declutches | |
| CN211974841U (en) | Double-braking door roller | |
| CN210001518U (en) | electromagnetic elevator braking device | |
| CN209083865U (en) | Disc brake parking mechanism | |
| CN205859009U (en) | The manual device for opening of normally engaged brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20180330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |