CN104192532A - Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer - Google Patents
Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer Download PDFInfo
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- CN104192532A CN104192532A CN201410430738.1A CN201410430738A CN104192532A CN 104192532 A CN104192532 A CN 104192532A CN 201410430738 A CN201410430738 A CN 201410430738A CN 104192532 A CN104192532 A CN 104192532A
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- chain
- connecting rod
- ratchet
- protection device
- breakage protection
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Abstract
The invention relates to the field of mechanical conveying, in particular to a chain breakage protection device for a chain, a conveyer, application of the chain breakage protection device for the chain and application of the conveyer. The chain breakage protection device comprises a synchronizing mechanism, a braking part, a first locking component and a second locking component. When the chain moves at an excessive speed, the chain enables the braking part to move beyond a specific range, the braking part drives the first locking component and the second locking component to be fixedly connected through the synchronizing mechanism, and therefore the braking part can stop the chain from moving. According to the chain breakage protection device, under the condition that the structure of the chain is not changed, timely response to accidents is guaranteed, and the safety index of production activities is increased.
Description
Technical field
The present invention relates to mechanical transportation art, relate in particular to a kind of chain breakage protection device for chain, conveyer and application thereof.
Background technology
In the chain type chain often adopting aborning, sometimes need to carry out vertical or tilt-lift operation.In the time carrying out vertical or tilt-lift operation, the reverse-running section chain of chain type chain moves downward.Once chain vertical or be tilted to lower drawback movement in rupture, if do not taked necessary measure, the material of whole chain and its conveying accumulation of will dropping downwards under the effect of gravity, causes serious accident.In order to address this problem, need to improve the safety factor of chain, for example realize by chain is widened and strengthened, but this method also increases the load of system, has increased the cost of investment of system simultaneously.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of chain breakage protection device for chain, improve especially the safety factor of chain backhaul chain in the time of vertical or tilt-lift operation.
The present invention proposes a kind of chain breakage protection device for chain, comprising:
Can jointly be actuated and the brake component that moves reciprocatingly in particular range by the chain of proper motion and coupled return springs, on described brake component, be provided with regularly the first Lock Part,
Synchronizer gear, described synchronizer gear is synchronized with the movement by simultaneous force and described brake component, and
The second Lock Part being connected with described synchronizer gear,
Wherein, in the time that described chain produces the accelerated movement while exceeding normal operation, described chain can drive described brake component to exceed the accelerated movement of described particular range, overcome described simultaneous force, misplace, described brake component drives described the second Lock Part and described the first Lock Part fixed engagement by described synchronizer gear, thereby stops described chain to move by described brake component.
Preferably, described brake component and described the first Lock Part can be around common fixed rotating shaft synchronous rotaries.In this way, brake component can drive the first Lock Part to rotate around the jointed shaft at fulcrum place together.
Preferably, described the first Lock Part is included in end and is provided with the ratchet connecting rod of ratchet, described the second Lock Part comprise swing arm and be arranged on the free end of described swing arm with the suitable ratchet of described ratchet.Ratchet ratchet is just fixed together firmly once engagement, no longer separate, because the engagement force of the two (mainly depending on the total force of chain and load thereof) much larger than the reset pulling force of return springs with being proportionate, so can ensure that ratchet ratchet continues engagement securely, thereby ensure by brake component, the chain of disconnection to be tangled firmly, locked.
Preferably, described synchronizer gear comprises inertia connecting rod and flexible connecting member, described inertia connecting rod and described fixed rotating shaft are hinged and can upwards produce the relative displacement on first direction at revolution with respect to described ratchet connecting rod, described inertia connecting rod has through hole in the end away from described fixed rotating shaft, described flexible connecting member one end is fixed on described ratchet, and the other end is fixed on described ratchet connecting rod through the described through hole of described inertia connecting rod.Further preferably, described flexible connecting member is also through the hole engaging with described fixed rotating shaft of described brake component.So can more reasonably utilize the motive force of flexible connecting member to ratchet.
Preferably, in the time of described chain proper motion, described inertia connecting rod overlaps in revolution position upwards with described ratchet connecting rod.The most simply structure that in this way can implement device.
Preferably, on described ratchet connecting rod, be provided with elastic block piece, on described inertia connecting rod, be provided with the lever contacting with described elastic block piece, described elastic block piece can by described lever to described inertia connecting rod apply along revolution to the power of second direction, described second direction is contrary with described first direction.In the time that elastic block piece bends deformation, it can apply for example anti-clockwise power around fulcrum to lever, follows thereby inertia connecting rod is had the trend that ratchet connecting rod together rotates.Preferably, inertia connecting rod has the larger quality deformation power of elastic block piece (herein for).
Preferably, on described ratchet connecting rod, be also provided with the baffle plate extending out, described baffle plate can stop described inertia connecting rod upwards to produce the relative displacement in second direction with respect to described ratchet connecting rod at revolution.In this way, in the reseting procedure of whole device, baffle plate can drive inertia connecting rod to carry out together for example clockwise reseting movement, until whole chain breakage protection device is returned to initial position.
Preferably, the described return springs spring that the other end is connected with described brake component for one end fixes.Further preferably, the fixed end of described swing arm is hinged to fixed position, and the swinging plane of described swing arm overlaps with the plane of rotation of described brake component.Certainly, herein said " coincidence " not refer to the proper coincidence of space geometry, its object is mainly to allow ratchet and ratchet can normally bring into play the function of its mutual interlock.
Certainly, the setting of ratchet and ratchet is only exemplary, can replace with the similar Lock Part of adaptation mutually for example resilient clamp member completely.
According to chain breakage protection device of the present invention, in the situation that chain not being carried out to changing of design, ensure, to unexpected reply in time, to have improved the safety index of activity in production.
The invention allows for a kind of conveyer having according to chain breakage protection device of the present invention.
The invention allows for a kind of conveyer according to the present invention in the application of carrying in active carbon.
Above-mentioned technical characterictic can various applicable modes combine or be substituted by equivalent technical characterictic, as long as can reach object of the present invention.
Brief description of the drawings
To be described in more detail the present invention based on embodiment and with reference to accompanying drawing hereinafter.Wherein:
Fig. 1 shown in primary importance according to the chain breakage protection device for chain of the present invention;
Fig. 2 has shown the view along A direction observation in Fig. 1 of chain;
Fig. 3 shown in the second place according to the chain breakage protection device for chain of the present invention;
Fig. 4 has shown the enlarged drawing of Fig. 3 Elastic catch and lever;
Fig. 5 shown the process in return to primary importance from the second place according to the chain breakage protection device for chain of the present invention;
Fig. 6 shown in the 3rd position according to the chain breakage protection device for chain of the present invention; And
Fig. 7 has shown the enlarged drawing of Fig. 6 Elastic catch and lever.
In the accompanying drawings, identical parts use identical Reference numeral.Accompanying drawing is not according to actual ratio.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 shown in primary importance according to the chain breakage protection device for chain of the present invention.It especially can be used for carrying active carbon.
As seen from Figure 1, first comprise brake rod 1 according to the chain breakage protection device for chain of the present invention.Brake rod 1 can jointly be actuated and be moved reciprocatingly in particular range by the chain of proper motion 10 and coupled return springs 9.
In the embodiment shown in the figures, chain 10 is specifically exemplified as chain 10, and this is not determinate certainly.Chain breakage protection device according to the present invention can be applicable to anyly have and the chain of chain 10 similar principle of work.Fig. 2 has further shown the view along A direction observation in Fig. 1 of chain 10.Can find out, each unit of chain 10 comprises two carrier bars that be arranged in parallel 11, and the end of carrier bar 11 is provided with the roller 12 of lateral arrangement.Be inserted into according to one end of the brake rod 1 of chain breakage protection device of the present invention in the middle of two carrier bars 11 of chain 10.So, when chain 10 moves, often moved a unit, the roller 12 that is positioned at the lateral arrangement of carrier bar 11 ends can drive brake rods 1 to move.In situation shown in the drawings, under the pressure-acting of roller 12, brake rod 1 can rotate certain amplitude around its fulcrum O.
Referring again to Fig. 1, return springs 9 is for fixing the spring 9 that the other end is connected with brake rod 1 in one end.But this is only a kind of implementation for the return springs of brake rod 1, one of ordinary skill in the art will readily recognize that anyly have and the elastomeric element of spring 9 similar functions, such as support spring, laminated spring, belleville spring etc. all can be used for this.Return springs 9 is preferably connected to the near middle of brake rod 1.
On brake rod 1, be provided with regularly the ratchet connecting rod 4 that is provided with ratchet 13 in end.Brake rod 1 and ratchet connecting rod 4 are fixed together, and the two can be around common fixed rotating shaft synchronous rotary.This fixed rotating shaft jointed shaft that be positioned at fulcrum O place of seat on 14 that be fixedly hinged.In addition, so-called " fixed rotating shaft " refers to that the position of this rotating shaft fixes herein, but according to specific design needs, himself can rotate.
Also comprise the ratchet 2 suitable with ratchet 13 according to chain breakage protection device of the present invention.Ratchet 2 is arranged on the free end of ratchet connecting rod 16 of swing arm form.The fixed end of ratchet connecting rod 16 is hinged on fixing hinged seat 17.Ratchet 2 and ratchet connecting rod 16 can rotate around hinged seat 17.Under initial condition, between ratchet 2 and the ratchet 13 of ratchet connecting rod 4, be separated with mutually a safety distance, there is not mutual interference in both.
Can easily be understood by Fig. 1, the swinging plane of ratchet connecting rod 16 overlaps with the plane of rotation of brake rod 1.Certainly, herein said " coincidence " not refer to the proper coincidence of space geometry, its object is mainly to allow ratchet 2 and ratchet 13 can normally bring into play the function of its mutual interlock.
Also comprise inertia connecting rod 3 according to chain breakage protection device of the present invention.The jointed shaft that be positioned at fulcrum O place of inertia connecting rod 3 equally and on hinged seat 14 is hinged, and can be around this jointed shaft rotation.Therefore, inertia connecting rod 3 can upwards produce on first direction (particularly at revolution with respect to ratchet connecting rod 4, in the accompanying drawings, first direction is around the clockwise direction of fulcrum O) relative displacement (for the concrete production process of angular transposition, can introduce in detail below).On the other hand, inertia connecting rod 3 has through hole 15 in the end of the fixed rotating shaft away from being positioned at fulcrum O place.
Also comprise flexible connecting member 6 according to chain breakage protection device of the present invention.In order to distinguish with remaining part, in the accompanying drawings, flexible connecting member 6 is shown in broken lines.Particularly, flexible connecting member 6 may be embodied as rope and chain etc.Flexible connecting member 6 one end are fixed on ratchet 2, have indicated the position that flexible connecting member 6 engages with ratchet 2 in the drawings by label E.The other end of flexible connecting member 6 is fixed on ratchet connecting rod 4 through the through hole 15 of inertia connecting rod 3, makes flexible connecting member 6 can freely pass through through hole 15.In a preferred embodiment, the hole that flexible connecting member 6 also engages through the fixed rotating shaft with fulcrum O place of brake rod 1.That is to say, the path of flexible connecting member 6 can be through the pivot point O of brake rod 1.Under initial condition, ratchet 2 and ratchet connecting rod 16 with certain angle layout, make the Action of Gravity Field due to ratchet 2 and ratchet connecting rod 16 in its swinging plane, and flexible connecting member 6 is in tension.
On ratchet connecting rod 4, be provided with elastic block piece 5, on inertia connecting rod 3, be provided with the lever 8 contacting with elastic block piece 5.Elastic block piece 5 can by lever 8 to inertia connecting rod 3 apply along revolution to the power of second direction (particularly, in the accompanying drawings, second direction is around the anticlockwise direction of fulcrum O).Can understand easily by Fig. 1, in the time that elastic block piece 5 bends deformation, it can apply the anti-clockwise power around fulcrum O to lever 8, follows thereby inertia connecting rod 3 is had the trend that ratchet connecting rod 4 together rotates.Preferably, inertia connecting rod 3 has the larger quality deformation power of elastic block piece 5 (herein for).
Elastic block piece 5 one end are fixed on ratchet connecting rod 4, and the other end freely.Lever 8 is fixed on inertia connecting rod 3.Under initial condition, the free end of elastic block piece 5 and lever 8 are close together.
In the embodiment shown in the figures, elastic block piece 5 and lever 8 are arranged at ratchet connecting rod 4 and inertia connecting rod 3 in the space between the two, elastic block piece 5 and lever 8 extend out from the surface toward each other of ratchet connecting rod 4 and inertia connecting rod 3 respectively, form bonded to each other.In position, lever 8 preferably departs from fulcrum O mono-segment distance, makes ratchet connecting rod 4 to apply certain moment to inertia connecting rod 3 by the interaction of elastic block piece 5 and lever 8, rotates around fulcrum O so that it trends towards following ratchet connecting rod 4.
Certainly, elastic block piece 5 and lever 8 also can be taked other arrangement, for example, they are arranged to the side away from ratchet connecting rod 4 (being called for short after a while outside face side) of inertia connecting rod 3.Elastic block piece 5 extends out from the edge of ratchet connecting rod 14, and extends along the outside face side of inertia connecting rod 3, and lever 8 directly fits and extends out from the outside face of inertia connecting rod 3 and elastic block piece 5.
With further reference to Fig. 1, on ratchet connecting rod 4, be also provided with the baffle plate 7 extending out.Baffle plate 7 can stop inertia connecting rod 3 upwards to produce the relative displacement in second direction (particularly, in the accompanying drawings, second direction is around the anticlockwise direction of fulcrum O) with respect to ratchet connecting rod 4 at revolution.
Fig. 3 shown in the second place according to the chain breakage protection device for chain of the present invention.In the time of chain 10 normal operation, chain 10 moves downward with lower speed.In the time that the roller 12 on chain 10 touches the brake rod 1 that is inserted into carrier bar 11 centres, can promote brake rod 1 and carry out left-hand revolution around the jointed shaft at pivot point O place.Brake rod 1 can drive ratchet connecting rod 4 to rotate around the jointed shaft at fulcrum O place together, because the two is mutually fixedly set.Under the impact of the roller 12 of chain 10, primary importance is as shown in Figure 1 moved to the second place shown in Fig. 2 by chain breakage protection device according to the present invention.
Due in the situation that chain 10 normally moves, the velocity of rotation of ratchet connecting rod 4 is lower, acceleration/accel is zero substantially, so the elastic block piece 5 being fixed on ratchet connecting rod 4 promotes to be fixed on the lever 8 on inertia connecting rod 3, makes inertia connecting rod 3 also along with ratchet connecting rod 4 rotates.Fig. 4 has specifically shown the enlarged drawing of Fig. 3 Elastic catch 5 and lever 8, wherein can obviously find out that elastic block piece 5 amplitude of deformation are less, it has applied along the power of rotating circumferential anticlockwise direction (direction shown in the arrow in figure) lever 8 and inertia connecting rod 3 by elastic deformation.
Referring again to Fig. 3; owing to moving to the process of the second place shown in Fig. 3 from the primary importance shown in Fig. 1 at chain breakage protection device; inertia connecting rod 3 and ratchet connecting rod 4 remain coincidence in revolution position upwards; between inertia connecting rod 3 and ratchet connecting rod 4, there is no relative angular displacement; therefore on connecting rope 6, the distance between the attachment point E being connected with ratchet 2 and the centre of gration O of brake rod 1 is constant.So, even if inertia connecting rod 3 has occurred around the rotatablely moving of the jointed shaft at fulcrum O place, it also can not drive ratchet 2 to move by connecting rope 6.On the other hand, due under initial condition, between ratchet 2 and the ratchet 13 of ratchet connecting rod 4, be separated with mutually one section of safety distance, so under the normal running condition of chain 10, ratchet 2 and ratchet connecting rod 4 can phase mutual interference.So, chain 10 can successfully move downward, and brake rod 1 can not produce braking and locking effect.
Meanwhile, at brake rod 1 during around fulcrum O left-hand revolution, the side's fixed thereon that can stretch retracing spring 9.Therefore as shown in Figure 5, when roller 12 operation downwards of chain 10 is passed through after brake rod 1, the pulling force that the tensile deformation of retracing spring 9 produces can pull brake rod 1, and brake rod 1 can carry out clockwise rotation around O point, and now brake rod 1 can drive ratchet connecting rod 4 to carry out reseting movement.And the baffle plate 7 being fixed on ratchet connecting rod 4 can drive inertia connecting rod 3 to carry out together reseting movement, until whole chain breakage protection device is returned to initial position, i.e. primary importance shown in Fig. 1.
Fig. 6 shown in the 3rd position according to the chain breakage protection device for chain of the present invention.In the time that chain rupture occurs chain 10, the gravity of the load on chain 10 and chain 10 can make chain 10 carry out accelerated movement (being close in the movement of falling object) with acceleration due to gravity.Chain 10 moves downward fast, exceeds rapidly the hypervelocity motion of normal range.
Now the roller 12 of chain 10 touches after brake rod 1, and the gravity of the load on chain 10 and chain 10 has all been loaded on brake rod 1.Brake rod 1 will produce a very large angular acceleration, and carries out anti-clockwise around fulcrum O and accelerate rotation.Due to the setting interfixing, brake rod 1 can drive ratchet connecting rod 4 also to produce a very large angular acceleration, and ratchet connecting rod 4 accelerates rotation thereupon.Because inertia connecting rod 3 has relatively large quality, in the time that elastic block piece 5 rotates with very large angular acceleration with ratchet connecting rod 4, now the elastic force of elastic block piece 5 seems less relatively, can not drive inertia connecting rod 3 to rotate together.
Fig. 7 has shown the enlarged drawing of Fig. 6 Elastic catch 5 and lever 8, as can be seen from Figure 7, there is obvious Bending Deformation in elastic block piece 5, because ratchet connecting rod 4 is that significantly rotation has occurred within the extremely short time, the elastic force applying of elastic block piece 5 cannot drive the inertia connecting rod 3 and ratchet connecting rod 4 synchronous rotaries with larger quality in time.
Therefore, inertia connecting rod 3 cannot be followed in time ratchet connecting rod 4 and be rotated, and so just makes to have produced relative angular displacement between inertia connecting rod 3 and ratchet connecting rod 4.In embodiment shown in the figure, inertia connecting rod 3 has produced along rotating circumferential clockwise relative displacement with respect to ratchet connecting rod 4.
Because being fixed on ratchet connecting rod 4, connecting rope 6 one end (in Fig. 6, can see the point of connection indicating with label F), produce after relative angular displacement at inertia connecting rod 3 and ratchet connecting rod 4, distance between through hole 15 on this attachment point F and inertia connecting rod 3 can increase to some extent, the distance of this increase is greater than the safety distance between ratchet 2 and the ratchet 13 of ratchet connecting rod 4, so connecting rope 6 can haul ratchet 2 and move towards ratchet 13, finally make the ratchet 13 of ratchet 2 and ratchet connecting rod 4 intermeshing.
Ratchet ratchet is just fixed together firmly once engagement, no longer separates.Even if the relative angular displacement between inertia connecting rod 3 and ratchet connecting rod 4 has disappeared, because the engagement force (mainly depending on the total force of chain 10 and load thereof) of ratchet ratchet much larger than the reset pulling force of support spring 9 with being proportionate, so can ensure that ratchet ratchet continues engagement securely, thereby ensure, by brake rod 1, the chain of disconnection 10 is tangled to locking firmly.
The invention allows for a kind of conveyer having according to chain breakage protection device of the present invention.
The invention allows for a kind of conveyer according to the present invention in the application of carrying in active carbon.
Although invention has been described with reference to preferred embodiment, without departing from the scope of the invention, can carry out various improvement and can replace parts wherein with equivalent it.Especially, only otherwise have structural hazard, every technical characterictic of mentioning in each embodiment all can combine in any way.The present invention is not limited to disclosed specific embodiment in literary composition, but comprises all technical schemes in the scope that falls into claim.
Claims (10)
1. for the chain breakage protection device of chain, it is characterized in that, comprising:
Can jointly be actuated and the brake component that moves reciprocatingly in particular range by the chain of proper motion and coupled return springs, on described brake component, be provided with regularly the first Lock Part,
Synchronizer gear, described synchronizer gear is synchronized with the movement by simultaneous force and described brake component, and
The second Lock Part being connected with described synchronizer gear,
Wherein, in the time that described chain produces the accelerated movement while exceeding normal operation, described chain can drive described brake component to exceed the accelerated movement of described particular range, overcome described simultaneous force, misplace, described brake component drives described the second Lock Part and described the first Lock Part fixed engagement by described synchronizer gear, thereby stops described chain to move by described brake component.
2. chain breakage protection device according to claim 1, is characterized in that, described brake component and described the first Lock Part can be around common fixed rotating shaft synchronous rotaries.
3. chain breakage protection device according to claim 2, is characterized in that, described the first Lock Part is included in end and is provided with the ratchet connecting rod of ratchet,
Described the second Lock Part comprise swing arm and be arranged on the free end of described swing arm with the suitable ratchet of described ratchet.
4. chain breakage protection device according to claim 3, is characterized in that, described synchronizer gear comprises inertia connecting rod and flexible connecting member,
Described inertia connecting rod and described fixed rotating shaft are hinged and can upwards produce the relative displacement on first direction at revolution with respect to described ratchet connecting rod, and described inertia connecting rod has through hole in the end away from described fixed rotating shaft,
Described flexible connecting member one end is fixed on described ratchet, and the other end is fixed on described ratchet connecting rod through the described through hole of described inertia connecting rod, and described flexible connecting member also passes the hole engaging with described fixed rotating shaft of described brake component.
5. chain breakage protection device according to claim 4, is characterized in that, in the time of described chain proper motion, described inertia connecting rod overlaps in revolution position upwards with described ratchet connecting rod.
6. chain breakage protection device according to claim 5; it is characterized in that; on described ratchet connecting rod, be provided with elastic block piece; on described inertia connecting rod, be provided with the lever contacting with described elastic block piece; described elastic block piece can by described lever to described inertia connecting rod apply along revolution to the power of second direction, described second direction is contrary with described first direction.
7. chain breakage protection device according to claim 6; it is characterized in that; on described ratchet connecting rod, be also provided with the baffle plate extending out, described baffle plate can stop described inertia connecting rod upwards to produce the relative displacement in second direction with respect to described ratchet connecting rod at revolution.
8. according to the chain breakage protection device described in any one in claim 1 to 7; it is characterized in that; the described return springs spring that the other end is connected with described brake component for one end fixes; and the fixed end of described swing arm is hinged to fixed position, the swinging plane of described swing arm overlaps with the plane of rotation of described brake component.
9. have according to the conveyer of the chain breakage protection device described in any one in claim 1 to 8.
10. conveyer according to claim 9 is in the application of carrying in active carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430738.1A CN104192532B (en) | 2014-08-28 | 2014-08-28 | Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430738.1A CN104192532B (en) | 2014-08-28 | 2014-08-28 | Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104192532A true CN104192532A (en) | 2014-12-10 |
| CN104192532B CN104192532B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410430738.1A Active CN104192532B (en) | 2014-08-28 | 2014-08-28 | Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer |
Country Status (1)
| Country | Link |
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| CN (1) | CN104192532B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132372A (en) * | 2018-11-02 | 2019-01-04 | 新汶矿业集团有限责任公司 | It is a kind of to slip pawl type belt feeder buffering holdback certainly |
| CN117142041A (en) * | 2023-09-08 | 2023-12-01 | 上海赛摩物流科技有限公司 | Automatic change detection lifting machine chain broken link mechanism |
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| US4094475A (en) * | 1975-05-07 | 1978-06-13 | Takata Kojyo Co. Ltd. | Automatic locking safety belt retractor |
| US20090031846A1 (en) * | 2006-01-23 | 2009-02-05 | Capagnolo S.R.L. | Control device for a bicycle derailleur |
| CN201777769U (en) * | 2010-08-23 | 2011-03-30 | 浙江凌志电梯有限公司 | Non-manipulation anti-reverse rotation protection device for escalator |
| CN202245202U (en) * | 2011-09-09 | 2012-05-30 | 平顶山中选自控系统有限公司 | Chain breaking protection device of scraper conveyor |
| CN202662127U (en) * | 2012-06-28 | 2013-01-09 | 马海英 | Chain-breaking detection and alarm device for chain |
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2014
- 2014-08-28 CN CN201410430738.1A patent/CN104192532B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094475A (en) * | 1975-05-07 | 1978-06-13 | Takata Kojyo Co. Ltd. | Automatic locking safety belt retractor |
| US20090031846A1 (en) * | 2006-01-23 | 2009-02-05 | Capagnolo S.R.L. | Control device for a bicycle derailleur |
| CN201777769U (en) * | 2010-08-23 | 2011-03-30 | 浙江凌志电梯有限公司 | Non-manipulation anti-reverse rotation protection device for escalator |
| CN202245202U (en) * | 2011-09-09 | 2012-05-30 | 平顶山中选自控系统有限公司 | Chain breaking protection device of scraper conveyor |
| CN202662127U (en) * | 2012-06-28 | 2013-01-09 | 马海英 | Chain-breaking detection and alarm device for chain |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132372A (en) * | 2018-11-02 | 2019-01-04 | 新汶矿业集团有限责任公司 | It is a kind of to slip pawl type belt feeder buffering holdback certainly |
| CN109132372B (en) * | 2018-11-02 | 2024-03-22 | 新汶矿业集团有限责任公司 | Self-sliding pawl type belt conveyor buffer backstop |
| CN117142041A (en) * | 2023-09-08 | 2023-12-01 | 上海赛摩物流科技有限公司 | Automatic change detection lifting machine chain broken link mechanism |
| CN117142041B (en) * | 2023-09-08 | 2024-03-08 | 上海赛摩物流科技有限公司 | Automatic change detection lifting machine chain broken link mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104192532B (en) | 2017-02-15 |
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Inventor after: Zhang Zhen Inventor after: Ye Hengdai Inventor after: Sun Ying Inventor after: He Xinhua Inventor after: Wei Jinchao Inventor after: Chen Yongming Inventor before: Zhang Zhen Inventor before: Ye Hengdai Inventor before: Sun Ying Inventor before: He Xinhua Inventor before: Wei Jinchao |
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Effective date of registration: 20160614 Address after: 410007 Changsha City, Hunan province labor Road No. 1 Applicant after: ZhongYe Changtian International Engineering Co., Ltd. Applicant after: Baoshan Iron & Steel Co., Ltd. Address before: 410007 Changsha City, Hunan province labor Road No. 1 Applicant before: ZhongYe Changtian International Engineering Co., Ltd. |
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