CN103935861B - Pneumatic type limiter of speed safety tongs device - Google Patents
Pneumatic type limiter of speed safety tongs device Download PDFInfo
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- CN103935861B CN103935861B CN201410167989.5A CN201410167989A CN103935861B CN 103935861 B CN103935861 B CN 103935861B CN 201410167989 A CN201410167989 A CN 201410167989A CN 103935861 B CN103935861 B CN 103935861B
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- block
- plunger
- safety tongs
- speed
- hole
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Abstract
The invention discloses a kind of pneumatic type limiter of speed safety tongs device, including safety block, safety tongs trigger, transmission component, balloon type limiter of speed and base, wherein safety tongs trigger includes cylinder body, plunger, control spring, this plunger is connected with the lifting rod of safety block by steel wire rope, plunger be radially provided with through hole, it is provided with coil tension spring in this through hole, one end of this coil tension spring is connected to the first block, cylinder body offers the breach corresponding with through hole, first stopper portions is arranged in through hole, part is arranged in breach, breach is provided with contact block, the side of this contact block is connected with the first block, opposite side is connected with transmission component, balloon type limiter of speed includes inflator, balloon and connection rope, this connection rope is connected with transmission component, cylinder body and inflator are both secured on base, this base is connected with lift car. the feature that pneumatic type limiter of speed safety tongs device of the present invention has simple in construction, easy for installation and security performance is high.
Description
Technical field
The present invention relates to a kind of elevator safety clamp device, be related specifically to a kind of pneumatic type limiter of speed safety tongs device.
Background technology
Elevator governor safety tongs is widely used in elevator industry as a kind of release mechanism, tradition limiter of speed safety tongs device includes the safety tongs being located on lift car and the limiter of speed being located at elevator top of the trellis, limiter of speed is connected with the lifting rod of safety tongs typically via steel wire rope, owing to limiter of speed is fixed on elevator top of the trellis, therefore the length connecting the steel wire rope of limiter of speed and safety tongs to be equal to the height of elevator frame, take-up and pay-off device and speed mointor must also be set on limiter of speed simultaneously, therefore there is structure complexity and install troublesome shortcoming in this elevator governor safety tongs device.
Summary of the invention
The pneumatic type limiter of speed safety tongs device that the technical problem to be solved in the present invention is to provide a kind of simple in construction, easy for installation and security performance is high.
According to an aspect of the present invention, provide a kind of pneumatic type limiter of speed safety tongs device, including safety block, the safety tongs trigger being connected with safety block, the transmission component being connected with safety tongs trigger, the balloon type limiter of speed being connected with transmission component and base, wherein safety tongs trigger includes cylinder body, it is located at the plunger in cylinder body, the control spring being connected with plunger, this plunger is connected with the lifting rod of safety block by steel wire rope, plunger be radially provided with through hole, it is provided with coil tension spring in this through hole, one end of this coil tension spring is connected to the first block, cylinder body offers the breach corresponding with through hole, first stopper portions is arranged in through hole, part is arranged in breach, breach is provided with contact block, the side of this contact block is connected with the first block, opposite side is connected with transmission component, balloon type limiter of speed includes inflator, it is located at the balloon in inflator and the connection rope being connected with balloon, this connection rope is connected with transmission component, cylinder body and inflator are both secured on base, this base is connected with lift car.
Pneumatic type limiter of speed safety tongs device of the present invention provides the benefit that: owing to the cylinder body of safety tongs trigger and the inflator of balloon type limiter of speed are all fixed on base, and base is directly anchored on lift car, namely pneumatic type limiter of speed safety tongs device of the present invention is fixed on lift car, therefore steel wire rope that need not be very long, also allow for installing simultaneously.It is provided with plunger and control spring in the cylinder body of safety tongs trigger simultaneously, plunger is connected by steel wire rope with the lifting rod of safety block, coil tension spring and the first block being connected with this coil tension spring it is provided with in the through hole of this plunger, this first block is connected with contact block, first stopper portions is arranged in through hole, part is arranged in breach, contact block is connected with the connection rope on balloon with by transmission component, when lift car normal operation, the buoyancy that balloon is subject to is not enough to drive contact block compression coil tension spring, now owing to the first stopper portions is arranged in through hole, part is arranged in breach, namely plunger it is seized, therefore plunger will not move under the pressure of control spring, namely plunger will not pull the lifting rod of safety block by steel wire rope, namely safety block is in and opens shape body, lift car normal operation, when elevator cab movement speed is more than rated value, balloon can be subject to bigger buoyancy, and this dynamics can drive contact block compression coil tension spring, now contact block can by the first block to a side compression of plunger, and first block be fully pressed in the through hole in plunger, namely the first block is not blocking plunger, therefore under the elastic force effect of control spring, plunger can move, namely the lifting rod of safety block can be pulled, safety block is made to be in closed form body, namely lift car is carried out brake hard, in sum, pneumatic type limiter of speed safety tongs device of the present invention has simple in construction, the advantage that easy for installation and security performance is high.
In some embodiments, inflator can include the position-limiting drum matched with balloon and the gas collecting jar with ground-on cover plate being connected with position-limiting drum, and this gas collecting jar with ground-on cover plate is positioned at the lower section of position-limiting drum. Thus, it is possible to realize allowing balloon move only along position-limiting drum, namely can further improve the practicality of pneumatic type limiter of speed safety tongs device of the present invention.
In some embodiments, gas collecting jar with ground-on cover plate can be provided with air inlet. Thus, it is possible to better allow the air in the external world enter in gas collecting jar with ground-on cover plate, namely ensure that balloon can be subject to enough buoyancy when lift car declines extremely, to realize driving safety block Guan Bi.
In some embodiments, the other end of coil tension spring is connected to the second block, and the first block and the second block are steel ball, and cylinder body is provided with the groove matched with the second block. owing to the two ends of coil tension spring are connected with the first block and second block of steel ball structure respectively, cylinder body is provided with the spheric groove corresponding with the second block simultaneously, therefore when lift car normal operation, block plunger by the first block and the second block simultaneously, namely ensure that the stability of plunger position, and after the first block is expressed in the through hole of plunger by contact block completely, second block of steel ball structure then can skid off groove under the elastic force effect of control spring, namely the proper motion of plunger will not be hindered, in sum, pneumatic type limiter of speed safety tongs device of the present invention has practical advantage.
In some embodiments, the junction of cylinder body and plunger can be provided with flat key, and groove is located on flat key. By being provided with flat key between cylinder body and plunger, it is possible to optimize further the stability that plunger runs, groove is located on flat key simultaneously, it is to avoid cylinder interior is difficult to the defect of groove, improves the practicality of pneumatic type limiter of speed safety tongs device of the present invention.
In some embodiments, transmission component includes the bracing frame being fixed on base, the rotating shaft being located on bracing frame, the eccentric being flexibly connected with rotating shaft and the connecting rod being connected with eccentric, and wherein eccentric is connected with contact block, and this connecting rod is connected with being connected rope. Thus, it is possible to realize when balloon pulls connecting rod by connecting rope, eccentric can around axis of rotation, and now eccentric will extrude contact block, and the buoyancy that can realize being subject to by balloon is converted into the thrust promoting the motion of contact block.
In some embodiments, pulley assembly can also be included, pulley spindle that this pulley assembly includes being movably connected with the base, it is located at the reel in the middle part of pulley spindle and is located at the pulley at pulley spindle two ends, wherein reel is connected by steel wire rope with plunger, and this pulley is connected by steel wire rope with the lifting rod of safety block.Thus, two safety blocks can be simultaneously driven by pneumatic type limiter of speed safety tongs device of the present invention and work simultaneously, namely can promote its practicality and security performance further.
In some embodiments, indentation, there can be provided with gland, and this gland offers the adjustment hole corresponding with through hole, and contact block is located in adjustment hole, and the first stopper portions is arranged in through hole, and part is arranged in adjustment hole. By adding gland in indentation, there, and the first block and contact block are positioned in the adjustment hole of gland, therefore the thickness of cylinder body can be greatly reduced, so that the structure of pneumatic type limiter of speed safety tongs device of the present invention is simpler, reasonable.
Accompanying drawing explanation
Fig. 1 is the structural representation of pneumatic type a kind of embodiment of limiter of speed safety tongs device of the present invention;
Fig. 2 be in Fig. 1 pneumatic type limiter of speed safety tongs device along the sectional view in I-I direction;
Fig. 3 is the structural representation of pneumatic type limiter of speed safety tongs device safety tongs trigger in Fig. 2;
Fig. 4 is the structural representation of pneumatic type limiter of speed safety tongs device balloon type limiter of speed in Fig. 2;
Fig. 5 is the structural representation of pneumatic type limiter of speed safety tongs device pulley assembly in Fig. 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 to Fig. 5 gives an embodiment of pneumatic type limiter of speed safety tongs device of the present invention, in this embodiment, pneumatic type limiter of speed safety tongs device includes safety block 1, the safety tongs trigger 2 being connected by steel wire rope with safety block 1, the transmission component 3 being connected with safety tongs trigger 2, the balloon type limiter of speed 4 being connected with transmission component 3, base 5 and pulley assembly 7, wherein safety tongs trigger 2 includes cylinder body 21, it is located at the plunger 22 in cylinder body 21, the control spring 23 being connected with plunger 22 lower surface, cylinder body 21 is screwed on base 5, plunger 22 is connected with the lifting rod of safety block 1 by steel wire rope, one end of control spring 23 is connected with plunger 22, the other end is connected with the base of cylinder body 21, the radial direction of plunger 22 offers through hole 221, coil tension spring 24 it is provided with in through hole 221, one end of coil tension spring 24 is connected to the first block 25, the other end is connected to the second block 27, cylinder body 21 offers the breach 211 corresponding with through hole 221, it has been screwed gland 8 at breach 211 place, gland 8 offers the adjustment hole 81 corresponding with through hole 221, contact block 26 is located in adjustment hole 81, first block 25 part is arranged in through hole 221, part is arranged in adjustment hole 81, the side of contact block 26 is connected with the first block 25, opposite side is connected with transmission component 3. in the present embodiment, first block the 25, second block 27 and contact block 26 are steel ball, and cylinder body 21 is provided with the groove 212 matched with the second block 27, groove 212 is spheric groove, more precisely, the junction of cylinder body 21 and plunger 22 is provided with flat key 28, and groove 212 is located on flat key 28. in the present embodiment, owing to the two ends of coil tension spring 24 are connected with the first block 25 and the second block 27 of steel ball structure respectively, when lift car 6 normal operation, it is stuck in adjustment hole 81 by the first block 25, second block is stuck in groove 212 place simultaneously, namely the first block 25 and the second block 27 block plunger 22 simultaneously, namely ensure that the stability of plunger 22 position, and after the first block 25 is expressed in the through hole 221 of plunger 22 by contact block 26 completely, second block 27 of steel ball structure is not enough to block plunger 22, now under the elastic force effect of control spring 23, the second block 27 can skid off groove 212, namely moving upward of plunger 22 will not be hindered, now plunger 22 is promoted by control spring 3 and moves upward, namely safety block 1 can be driven to close.
Transmission component 3 includes the bracing frame 31 being screwed on base 5, the rotating shaft 32 being fixed on bracing frame 31, the eccentric 33 being flexibly connected with rotating shaft 32 and the connecting rod 34 being connected with eccentric 33, eccentric 33 is flexibly connected with rotating shaft 32 by bearing, namely eccentric 33 can rotate around rotating shaft 32, eccentric 33 is connected with contact block 26, one end of connecting rod 34 is fixedly linked by screw and eccentric 33, and the other end is connected with balloon type limiter of speed 4. When 34 1 pulling force of connecting rod given by balloon type limiter of speed 4, connecting rod 34 can pull eccentric 33 to rotate around rotating shaft 32, now eccentric 32 can promote contact block 26, and namely transmission component 3 is capable of being converted to connecting rod 34 tension thrust during startup safety tongs trigger 2 needed for contact block 26.
Balloon type limiter of speed 4 includes inflator 41, be located in inflator 41 balloon 42 and the connection rope 43 being connected with balloon 42, connecting rope 43 is nylon rope, its one end is connected with connecting rod 34, the other end is connected with balloon 42, inflator 41 is screwed on base 5, and base 5 is screwed in the top of lift car 6. What inflator 41 included matching with balloon 42 the position-limiting drum 411 and gas collecting jar with ground-on cover plate 412 that is connected with position-limiting drum 411, gas collecting jar with ground-on cover plate 412 is positioned at the lower section of position-limiting drum 411, gas collecting jar with ground-on cover plate 412 offers air inlet 413, position-limiting drum 411 and gas collecting jar with ground-on cover plate 412 and is formed in one structure. Inflator 41 ambient air can pass through air inlet 413 and enter in gas collecting jar with ground-on cover plate 412, and in inflator 41 under the effect of air, balloon 42 can be subject to a buoyancy, and this buoyancy can increase along with the quickening of the speed that lift car 6 declines. When lift car 6 normal decline, when namely decrease speed is within rated value, the buoyancy that balloon 42 is subject to is by, after transmission component 3 transmission, being not enough to drive contact block 26 to be expressed to completely in the through hole 221 in plunger 22 by first block 25; Declining when lift car 6 is abnormal, when namely decrease speed is more than rated value, the buoyancy that balloon 42 is subject to is by after transmission component 3 transmission, it is possible to drive contact block 26 to be expressed to completely in the through hole 221 in plunger 22 by the first block 25. To sum up namely pick out whether lift car 6 is at normal decline by the balloon 42 in balloon type limiter of speed 4, coordinate the safety block 1 realizing controlling on elevator to be in the state opened or close from there through transmission component 3 and safety tongs trigger 2.
Pulley spindle 71 that pulley assembly 7 includes being flexibly connected by bearing with base 5, it is located at the reel 72 in the middle part of pulley spindle 71 and is located at the pulley 73 at pulley spindle 71 two ends, the mode that wherein reel 72 and two pulleys 73 connect each through key is fixedly linked with pulley spindle 71, reel 72 is connected by steel wire rope with plunger 22, and pulley 73 is connected by steel wire rope with the lifting rod of safety block 1. When plunger 22 moves upward under the elastic force effect of control spring 3, it pulls reel 72 to rotate by steel wire rope, corresponding pulley spindle 71 also can rotate together, thus the pulley 3 being fixed on pulley spindle 71 two ends also can be servo-actuated, namely the lifting rod of safety block 1 can be pulled by steel wire rope so that safety block 1 closes.
Pneumatic type limiter of speed safety tongs device of the present invention is in use, when lift car 6 normal decline, the buoyancy that balloon 42 is subject to is less, now connecting rod 34 tension is less, eccentric 33 gives the insufficient pressure of contact block 26 to compress coil tension spring 24, namely the first block 25 will not be expressed in the through hole 221 in plunger 22 completely, now plunger 22 is coordinated by the first block 25 and the second block 27, it is stuck on cylinder body 21, therefore control spring 23 can not upwardly plunger 22, namely plunger 22 will pull actuating device 7 to drive safety block 1 to close by steel wire rope, namely safety block 1 is in the state opened, lift car 6 normal operation under the effect of carrying means.
When lift car 6 occurs that abnormal hypervelocity declines, the buoyancy that balloon 42 is subject to is bigger, now connecting rod 34 tension is bigger, eccentric 33 can compress coil tension spring 24 to the pressure of contact block 26, it is expressed to completely in the through hole 221 in plunger 22 by the first block 25, now the first block 25 can not block plunger 22, under the thrust of control spring 23, second block 27 also can skid off from groove 212, namely plunger 22 can be promoted under the effect of control spring 23 to move upward, namely plunger 22 can pull actuating device 7 to drive safety block 1 to close by steel wire rope, namely safety block 1 is in the state of Guan Bi, now lift car 6 is braked by safety block 1, namely ensure that the security performance that elevator runs.
Below it is only the preferred embodiment of the present invention, it is noted that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.
Claims (6)
1. pneumatic type limiter of speed safety tongs device, wherein, including safety block (1), the safety tongs trigger (2) being connected with safety block (1), the transmission component (3) being connected with safety tongs trigger (2), the balloon type limiter of speed (4) being connected with transmission component (3) and base (5), described safety tongs trigger (2) includes cylinder body (21), it is located at the plunger (22) in cylinder body (21), the control spring (23) being connected with plunger (22), described plunger (22) is connected by the lifting rod of steel wire rope with safety block (1), described plunger (22) be radially provided with through hole (221), coil tension spring (24) it is provided with in described through hole (221), one end of described coil tension spring (24) is connected to the first block (25), described cylinder body (21) offers the breach (211) corresponding with through hole (221), described first block (25) part is arranged in through hole (221), part is arranged in breach (211), described breach (211) is provided with contact block (26), the side of described contact block (26) is connected with the first block (25), opposite side is connected with transmission component (3), described balloon type limiter of speed (4) includes inflator (41), it is located at the balloon (42) in inflator (41) and the connection rope (43) being connected with balloon (42), the described rope (43) that connects is connected with transmission component (3), described cylinder body (21) and inflator (41) are both secured on base (5), described base (5) is connected with lift car (6), described inflator (41) includes the position-limiting drum (411) matched with balloon (42) and the gas collecting jar with ground-on cover plate (412) being connected with position-limiting drum (411), described gas collecting jar with ground-on cover plate (412) is positioned at the lower section of position-limiting drum (411), described gas collecting jar with ground-on cover plate (412) is provided with air inlet (413).
2. pneumatic type limiter of speed safety tongs device according to claim 1, wherein, the other end of described coil tension spring (24) is connected to the second block (27), described first block (25) and the second block (27) are steel ball, and described cylinder body (21) is provided with the groove (212) matched with the second block (27).
3. pneumatic type limiter of speed safety tongs device according to claim 2, wherein, the junction of described cylinder body (21) and plunger (22) is provided with flat key (28), and described groove (212) is located on flat key (28).
4. pneumatic type limiter of speed safety tongs device according to claim 3, wherein, bracing frame (31) that described transmission component (3) includes being fixed on base (5), the eccentric (33) that the rotating shaft (32) being located on bracing frame (31) is flexibly connected with rotating shaft (32) and the connecting rod (34) being connected with eccentric (33), described eccentric (33) is connected with contact block (26), and described connecting rod (34) is connected with being connected rope (43).
5. pneumatic type limiter of speed safety tongs device according to claim 4, wherein, also include pulley assembly (7), described pulley assembly (7) includes the pulley spindle (71) being flexibly connected with base (5), the reel (72) being located at pulley spindle (71) middle part and is located at the pulley (73) at pulley spindle (71) two ends, described reel (72) is connected by steel wire rope with plunger (22), and described pulley (73) is connected by steel wire rope with the lifting rod of safety block (1).
6. pneumatic type limiter of speed safety tongs device according to claim 1 or 5, wherein, described breach (211) place is provided with gland (8), described gland (8) offers the adjustment hole (81) corresponding with through hole (221), described contact block (26) is located in adjustment hole (81), described first block (25) part is arranged in through hole (221), and part is arranged in adjustment hole (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167989.5A CN103935861B (en) | 2014-04-24 | 2014-04-24 | Pneumatic type limiter of speed safety tongs device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410167989.5A CN103935861B (en) | 2014-04-24 | 2014-04-24 | Pneumatic type limiter of speed safety tongs device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103935861A CN103935861A (en) | 2014-07-23 |
| CN103935861B true CN103935861B (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410167989.5A Expired - Fee Related CN103935861B (en) | 2014-04-24 | 2014-04-24 | Pneumatic type limiter of speed safety tongs device |
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| Country | Link |
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| CN (1) | CN103935861B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338613B (en) * | 2016-09-09 | 2018-12-18 | 广东德奥电梯科技有限公司 | Pneumatic limiter of speed |
| CN106315332B (en) * | 2016-09-21 | 2019-02-15 | 广东德奥电梯科技有限公司 | Safe forceps system with vibration hydraulic power source and pneumatic limiter of speed |
| CN109335912B (en) * | 2018-11-22 | 2023-10-27 | 迈格钠磁动力股份有限公司 | Triggering device of elevator safety protection equipment |
| CN109650212B (en) * | 2019-01-21 | 2021-06-08 | 日立电梯（中国）有限公司 | Safety protection device, elevator safety control method and elevator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB219209A (en) * | 1923-09-29 | 1924-07-24 | Gen Electric Co Ltd | Improvements in or relating to overspeed gears for controlling winding engines for mines |
| CN1597486A (en) * | 2003-09-17 | 2005-03-23 | 东芝电梯株式会社 | Elevator speed regulation mechanism |
| CN101428722A (en) * | 2004-04-20 | 2009-05-13 | 三菱电机株式会社 | Emergency stop system for elevator |
| CN101607655A (en) * | 2009-07-24 | 2009-12-23 | 沈皆乐 | Self-help lift safety gear |
| CN102331339A (en) * | 2011-06-11 | 2012-01-25 | 嘉兴市特种设备检测院 | Portable elevator speed limiter detection device and detection method for elevator speed limiter |
-
2014
- 2014-04-24 CN CN201410167989.5A patent/CN103935861B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB219209A (en) * | 1923-09-29 | 1924-07-24 | Gen Electric Co Ltd | Improvements in or relating to overspeed gears for controlling winding engines for mines |
| CN1597486A (en) * | 2003-09-17 | 2005-03-23 | 东芝电梯株式会社 | Elevator speed regulation mechanism |
| CN101428722A (en) * | 2004-04-20 | 2009-05-13 | 三菱电机株式会社 | Emergency stop system for elevator |
| CN101607655A (en) * | 2009-07-24 | 2009-12-23 | 沈皆乐 | Self-help lift safety gear |
| CN102331339A (en) * | 2011-06-11 | 2012-01-25 | 嘉兴市特种设备检测院 | Portable elevator speed limiter detection device and detection method for elevator speed limiter |
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| CN103935861A (en) | 2014-07-23 |
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Granted publication date: 20160608 Termination date: 20210424 |