CN208218124U - A kind of overhauling elevator protective device - Google Patents
A kind of overhauling elevator protective device Download PDFInfo
- Publication number
- CN208218124U CN208218124U CN201820665897.3U CN201820665897U CN208218124U CN 208218124 U CN208218124 U CN 208218124U CN 201820665897 U CN201820665897 U CN 201820665897U CN 208218124 U CN208218124 U CN 208218124U
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- Prior art keywords
- protection device
- shaft
- rope
- guide rod
- secondary protection
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Abstract
The utility model relates to elevator technology field, specifically a kind of overhauling elevator protective device, including pit body, transmission mechanism, first class of protection device and secondary protection device；The transmission mechanism includes thread spindle, the first guide rod, first movement part, the second moving member, skewback, rack and pinion；The first class of protection device includes top rope block, pressure rope cam and speed limiter wire rope；The skewback is fixedly connected with first movement part, and skewback is equipped with along the length direction gradually inclined inclined-plane of the first guide rod, can be passed through inclined-plane band dynamic pressure rope cam when the skewback is moved along the first guide rod and be rotated；The secondary protection device includes shaft, swing arm, support column and buffer；The rack gear is fixedly connected with the second moving member, and the gear is mounted in shaft, the rack and pinion engagement.The utility model passes through setting two class protection device, and switches the state of first class of protection device and secondary protection device outside elevator pit, improves safety, prevents service personnel's injures and deaths.
Description
Technical field
The utility model relates to elevator technology field, specifically a kind of overhauling elevator protective device.
Background technique
Overhauling elevator personnel, which need often to enter elevator pit, carries out upkeep operation, before entering elevator pit, maintenance
Elevator can be switched to inspecting state by operating status by inspection switch by personnel, refer to elevator with outgoing call from exhaling in responding
It enables, to prevent passenger operation elevator.But lift car may decline suddenly because of a variety of causes, for example traction machine band-type brake loses
Effect, limiter of speed failure, electric fault and maloperation of service personnel etc., cause service personnel's injures and deaths.
Application No. is 201220253033.3 utility model patents to disclose a kind of elevator pit maintenance protective device, leads to
The position that hook adjusts cord-pressing block is crossed, when elevator operates normally, cord-pressing block hangs over the normal gear of hook, cord-pressing block free end
Farther out from speed limiter wire rope, there is sufficient gap between speed limiter wire rope and cord-pressing block, speed limiter wire rope can be free
Cord-pressing block is first fixed on the movement gear of hook when maintenance personal enters elevator pit by movement, and cord-pressing block free end is close
Speed limiter wire rope makes cord-pressing block and the top rope pre- damp governor wirerope of block, if elevator declines suddenly, cord-pressing block and top rope
Clamping force increases between block, lifts safety tongs, safety tongs movement, stop elevator carriage, to guarantee elevator pit operating personnel
Safety.The elevator pit maintenance protective device have the disadvantage in that (1) switching hook gear need in elevator pit into
Row, elevator may decline and cause service personnel's injures and deaths during this, and there are security risks；(2) fixed plate and cage guide
It is fixedly connected, moment of flexure can be generated to cage guide during lift car decline, be different from safety tongs and cage guide is produced
Raw Bidirectional-squeezing power, moment of flexure are easier to damage cage guide, increase maintenance cost, influence the use of elevator from now on.
Application No. is the applications for a patent for invention of 201310507691.X to disclose a kind of elevator pit maintenance protective device, when
When lift car declines because of failure, lift car is propped up with slide bar, elevator is prevented to continue to decline, to guarantee that elevator pit is made
The safety of industry personnel, when elevator is in non-inspecting state, slide bar does not interfere the decline of elevator close to the side wall of elevator pit.
Elevator pit maintenance protective device has the disadvantage in that the position of (1) switching slide bar needs to carry out in elevator pit, this
Elevator may decline and cause service personnel's injures and deaths in the process, and there are security risks, in the embodiment of the application for a patent for invention
Although describing hinge in two to connect with driving mechanism, keep slide bar mobile there is no how open driving mechanism passes through hinge；
(2) easily lift car is caused to damage with the lift car of a slide bar support decline, after lift car can be most probably pierced
Continue to decline and lead to service personnel's injures and deaths；(3) hinge, limit plate are fixedly connected with cage guide, are declined in lift car
During can to cage guide generate moment of flexure, different from the Bidirectional-squeezing power that safety tongs generates cage guide, moment of flexure is more held
Easily cage guide is damaged, increases maintenance cost, influences the use of elevator from now on.
Utility model content
Purpose of the utility model is to solve above-mentioned the deficiencies in the prior art, provide a kind of overhauling elevator protection dress
Set, by be arranged two class protection device, and outside elevator pit switch first class of protection device and secondary protection device shape
State improves safety, prevents service personnel's injures and deaths.
Technical problem to be solved in the utility model is realized using following technical scheme: a kind of overhauling elevator protection dress
It sets, including pit body, transmission mechanism, first class of protection device and secondary protection device；The transmission mechanism includes thread spindle, first leads
To bar, first movement part, the second moving member, skewback, rack and pinion；The thread spindle and the first guide rod are horizontally arranged at
In pit body, the outside of the pit body is equipped with the swinging handle with screw thread axis connection, and the first movement part and the second moving member are equal
It is slidably matched with the first guide rod and is threadedly engaged with thread spindle；The first class of protection device include top rope block, pressure rope cam and
Speed limiter wire rope, the top rope block are mounted in pit body, and the pressure rope cam is articulated in pit body, the speed limiter wire rope
Between top rope block and pressure rope cam；The skewback is fixedly connected with first movement part, and skewback is equipped with along the first guide rod
Length direction gradually inclined inclined-plane, inclined-plane band dynamic pressure rope cam can be passed through when the skewback is moved along the first guide rod and turned
It is dynamic；The secondary protection device includes shaft, swing arm, support column and buffer, and the shaft is vertically installed in pit body, described
The both ends of swing arm are connect with shaft and support column respectively, and the support column is in vertical direction, and the buffer is mounted on support column
Top；The rack gear is fixedly connected with the second moving member, and the gear is mounted in shaft, the rack and pinion engagement.
The technical solution of the utility model is also: the secondary protection device is equipped with more sets, and the gear is installed therein
In the shaft of a set of secondary protection device；Cover the rotating shaft transmission connection of the secondary protection device more.Using the technical program, lead to
Excessive root support column supports lift car, safer reliable.
The technical solution of the utility model is also: the secondary protection device is equipped with four sets, and four sets of second class protections fill
Set in rectangular layout, the shaft of four sets of secondary protection devices passes sequentially through chain-drive mechanism connection, cover second class protections dress more
The shaft set can rotate in the same direction, at the same speed.
The technical solution of the utility model is also: the shaft is equipped with limit plate, and the swing arm is connect with shaft loose key,
The swing arm is located at the top of limit plate, and buffer spring is equipped between the limit plate and swing arm.It is hit when lift car declines
When secondary protection device, kinetic energy is largely absorbed by buffer, also has sub-fraction that can be consumed by the deformation of support column, is used
The technical program, shaft is able to drive swing arm rotation and swing arm can slide axially with respect to shaft, when support column is by lift car
When collision deformation, swing arm can move down and compress buffer spring, to prevent rotation stop axis or swing arm bending, guarantee secondary protection device
Normal use.
The technical solution of the utility model is also: the lower end of the support column is contacted with the bottom surface of pit body, passes through pit body bottom
The deformation in face absorbs the kinetic energy when decline of a part of lift car.
The technical solution of the utility model is also: the secondary protection device further includes second support, the shaft installation
On the secondary support bracket, the second support is bolted on the side wall for being mounted on pit body.
The technical solution of the utility model is also: the first class of protection device further includes first support, the first support
It is bolted on the side wall for being mounted on pit body, top rope block mounting plate is installed in the first support, the top rope block is logical
It crosses the second guide rod to be slidably mounted on the rope block mounting plate of top, is equipped with top rope between the top rope block and top rope block mounting plate
Spring.Using the technical program, braking distance is long, prevents cage guide from damaging because bearing excessively high load.
The technical solution of the utility model is also: the pressure rope cam and top rope block with speed limiter wire rope equipped with matching
Limiting slot, prevent wirerope from deviateing.
Compared with the existing technology, the utility model overhauling elevator protective device has the beneficial effect that (1) if lift car
Improper decline can trigger first class of protection device first, and pressure rope cam is fixed under the action of frictional force, and hand is shaken in operation at this time
Handle can only be such that skewback resets and cannot make pressure rope cam return, therefore after service personnel's debugging, need first at elevator bottom
Pressure rope cam is pulled manually in hole, rides over it on skewback under the effect of gravity, first class of protection device can be at this time
Guarantee the safety of service personnel, then service personnel exits elevator pit and answers first class of protection device and secondary protection device
Position, decline lift car can normally, and therefore, the utility model greatly improves safety by the way that two class protection device is arranged
Property；(2) state that can switch first class of protection device and secondary protection device by swinging handle outside elevator pit, prevents
Service personnel's injures and deaths when entering switching state in elevator pit, it is highly-safe；(3) more support columns are set, and are being supported
The top of column is equipped with buffer, and the kinetic energy of lift car decline is mainly absorbed by multiple buffers, prevents lift car from damaging；
(4) gearing of first class of protection device and secondary protection device is realized by transmission mechanism, the process of switching state is simple and convenient；
(5) first class of protection device and secondary protection device are not connect with cage guide, therefore while being triggered will not be to cage guide
Moment of flexure is generated, prevents cage guide from damaging, reduces maintenance cost；(6) in moist elevator pit, electrical components easily occur
Personnel contact is damaged or caused to failure, and the utility model does not need electrical control, safer reliable.
Detailed description of the invention
Fig. 1 is the main view of the off working state of the utility model overhauling elevator protective device.
Fig. 2 is the partial enlarged view in the portion A in Fig. 1.
Fig. 3 is the top view of the off working state of the utility model overhauling elevator protective device.
Fig. 4 is the partial enlarged view in the portion B in Fig. 3.
Fig. 5 is the partial enlarged view in the portion C in Fig. 3.
Fig. 6 be Fig. 3 in D to view.
Fig. 7 is the partial enlarged view in the portion E in Fig. 6.
Fig. 8 is the top view of the working condition of the utility model overhauling elevator protective device.
Fig. 9 be Fig. 8 in F to view.
Figure 10 is the partial enlarged view in the portion G in Fig. 9.
In figure: 1, pit body, 2, thread spindle, the 3, first guide rod, 4, swinging handle, 5, top rope block, 6, pressure rope cam, 7,
Speed limiter wire rope, 8, shaft, 9, swing arm, 10, support column, 11, buffer, 12, first movement part, the 13, second moving member,
14, skewback, 15, rack gear, 16, gear, 17, chain-drive mechanism, 18, limit plate, 19, buffer spring, 20, second support, 21,
One bracket, 22, top rope block mounting plate, the 23, second guide rod, 24, top rope spring, 25, limiting slot, 26, inclined-plane, 27, elevator car
Compartment.
Specific embodiment
In order to clarify the technical characteristics of the invention, below according to attached drawing to specific embodiment of the present invention make into
One step explanation.
As shown in Fig. 1~Figure 10, a kind of overhauling elevator protective device, including pit body 1, transmission mechanism, first class of protection device
And secondary protection device.
Transmission mechanism includes thread spindle 2, the first guide rod 3, first movement part 12, the second moving member 13, skewback 14, rack gear
15, gear 16 and chain-drive mechanism 17.
Thread spindle 2 and the first guide rod 3 are horizontally arranged in pit body 1, and the outside of pit body 1 is equipped with to be connect with thread spindle 2
Swinging handle 4.First movement part 12 and the second moving member 13 be slidably matched with the first guide rod 3 and with 2 screw thread of thread spindle
Cooperation, comparison diagram 3 and Fig. 8, when operating swinging handle 4 rotates thread spindle 2, thread spindle 2, which is able to drive, constitutes friction with it
Secondary first movement part 12 and the second moving member 13 is moved along the first guide rod 3.
As shown in Fig. 4, Fig. 7 and Figure 10, first class of protection device includes top rope block 5, pressure rope cam 6,7 and of speed limiter wire rope
First support 21.First support 21 is bolted on the side wall for being mounted on pit body 1, and top rope block is installed in first support 21
Mounting plate 22, top rope block 5 are slidably mounted on the rope block mounting plate 22 of top by the second guide rod 23, and top rope block 5 and top are restricted
Top rope spring 24 is equipped between block mounting plate 22.Pressure rope cam 6 is articulated in first support 21.Speed limiter wire rope 7 is located at top
It restricts between block 5 and pressure rope cam 6, speed limiter wire rope 7 is connect with the voussoir of safety tongs.As shown in figure 4, pressure rope cam 6 and top
Block 5 of restricting is equipped with and the matched limiting slot 25 of speed limiter wire rope 7.
Skewback 14 is fixedly connected with first movement part 12, skewback 14 be equipped with along the first guide rod 3 length direction gradually
Inclined inclined-plane 26, " inclination " refer to its along the track of the length direction of the first guide rod 3 be it is inclined, inclined-plane 26 be plane or
Curved surface, the present embodiment are preferably curved surface.As shown in fig. 7, pressure rope 6 off working state of cam when under the effect of gravity with
Inclined-plane 26 contacts, and speed limiter wire rope 7 is not clamped.When first movement part 12 is moved along the first guide rod 3, skewback 14 passes through
Inclined-plane 26 is rotated with dynamic pressure rope cam 6, and pressure rope cam is gradually reduced at a distance from speed limiter wire rope 7, as shown in Figure 10, when
After pressure rope cam 6 turns to operating position, speed limiter wire rope 7, which pulls upwardly on, can continue to turn counterclockwise with dynamic pressure rope cam 6
It is dynamic, since the point on the partial contour line of pressure rope cam 6 is gradually increased at a distance from its drive-connecting shaft, speed limiter wire rope 7
Can pressure rope cam 6 the more be drawn the more tight, so that rope cam 6 be pressed to clamp speed limiter wire rope 7 with top rope block 5.
Secondary protection device is equipped with four sets, and four sets of secondary protection devices are in rectangular layout.Secondary protection device includes
Shaft 8, swing arm 9, support column 10, buffer 11 and second support 20.Second support 20, which is bolted, is mounted on pit body 1
On side wall.Shaft 8 is vertically installed in second support 20.
As shown in Figure 2 and Figure 5, rack gear 15 is fixedly connected with the second moving member 13, and gear 16 is installed therein a set of second level
In the shaft 8 of protective device, rack gear 15 is engaged with gear 16, and when the second moving member 13 is moved along the first guide rod 3, second is moved
Moving part 13 drives shaft 8 to rotate by rack gear 15 and gear 16.As shown in figures 3 and 8, the shaft 8 of four sets of secondary protection devices
It is sequentially connected by chain-drive mechanism 17, the shaft 8 of four sets of secondary protection devices can rotate in the same direction, at the same speed.
The both ends of swing arm 9 are connect with shaft 8 and support column 10 respectively.As shown in Fig. 2, shaft 8 is equipped with limit plate 18, pendulum
Arm 9 is connect with 8 loose key of shaft, and swing arm 9 is located at the top of limit plate 18, and buffer spring is equipped between limit plate 18 and swing arm 9
19.Support column 10 is in vertical direction, and the lower end of support column 10 is contacted with the bottom surface of pit body 1.Buffer 11 is mounted on support column 10
Top.When lift car 27, which declines, hits secondary protection device, kinetic energy is largely absorbed by buffer 11, is also had one small
Part can be consumed by the deformation of support column 10, and shaft 8 is able to drive the rotation of swing arm 9 and swing arm 9 can be axial with respect to shaft 8 sliding
Dynamic, when support column 10 is by 27 collision deformation of lift car, swing arm 9 can move down and compress buffer spring 19, to prevent rotation stop
9 bending of axis 8 or swing arm, guarantees the normal use of secondary protection device.
Before service personnel enters elevator pit, operate swinging handle 4, the rotation of thread spindle 2 simultaneously by first class of protection device and
Secondary protection device is in working condition by off working state switching, specifically, thread spindle 2 drives first movement part 12 and the simultaneously
Two moving members 13 are moved along the first guide rod 3, and skewback 14 clamps pressure rope cam 6 by speed limiter wire rope 7 with top rope block 5, together
When, the second moving member 13 drives the shaft 8 of wherein a set of first class of protection device to rotate by rack gear 15 and gear 16, due to four
The shaft 8 of set first class of protection device is connected by chain-drive mechanism 17, therefore the shaft 8 of four sets of first class of protection devices turns simultaneously
Dynamic, shaft 8 is moved to the lower section of lift car 27 by the drive support rod 10 of swing arm 9.
If the improper decline of lift car 27, first class of protection device, work of the pressure rope cam 6 in frictional force can be triggered first
With lower fixation, operating swinging handle 4 at this time can only be such that skewback 14 resets and pressure rope cam 6 cannot be made to reset, therefore as maintenance people
After member's debugging, needs first manually to pull pressure rope cam 6 in elevator pit, ride over it under the effect of gravity
On skewback 14, first class of protection device can guarantee the safety of service personnel at this time, and then service personnel exits elevator pit and will
First class of protection device and secondary protection device reset, and decline lift car 27 can normally.
The embodiments of the present invention are elaborated above in conjunction with attached drawing, but the utility model is not limited to
Embodiment is stated, within the knowledge of a person skilled in the art, the utility model aims can also not departed from
Under the premise of make a variety of changes.
Claims (8)
1. a kind of overhauling elevator protective device, including pit body (1), it is characterised in that: further include transmission mechanism, first class of protection device
And secondary protection device；The transmission mechanism includes thread spindle (2), the first guide rod (3), first movement part (12), the second shifting
Moving part (13), skewback (14), rack gear (15) and gear (16)；The thread spindle (2) and the first guide rod (3) are horizontally arranged at
In pit body (1), the outside of the pit body (1) is equipped with the swinging handle (4) connecting with thread spindle (2), the first movement part
(12) it is slidably matched with the first guide rod (3) and is threadedly engaged with thread spindle (2) with the second moving member (13)；The level-one is protected
Protection unit includes top rope block (5), pressure rope cam (6) and speed limiter wire rope (7), and top rope block (5) is mounted on pit body (1)
On, pressure rope cam (6) is articulated on pit body (1), and the speed limiter wire rope (7) is located at top rope block (5) and pressure rope cam
(6) between；The skewback (14) is fixedly connected with first movement part (12), and skewback (14) is equipped with along the first guide rod (3)
Gradually inclined inclined-plane (26), the skewback (14) can pass through inclined-plane (26) when mobile along the first guide rod (3) to length direction
Band dynamic pressure rope cam (6) rotates；The secondary protection device includes shaft (8), swing arm (9), support column (10) and buffer
(11), the shaft (8) is vertically installed on pit body (1), the both ends of the swing arm (9) respectively with shaft (8) and support column
(10) it connects, the support column (10) is in vertical direction, and the buffer (11) is mounted on the top of support column (10)；The tooth
Item (15) is fixedly connected with the second moving member (13), and the gear (16) is mounted on shaft (8), the rack gear (15) and gear
(16) it engages.
2. overhauling elevator protective device according to claim 1, it is characterised in that: the secondary protection device is equipped with more
Set, the gear (16) are installed therein in the shaft (8) of a set of secondary protection device；Cover turning for the secondary protection device more
Axis (8) transmission connection.
3. overhauling elevator protective device according to claim 2, it is characterised in that: the secondary protection device is equipped with four
Set, four sets of secondary protection devices are in rectangular layout, and the shaft (8) of four sets of secondary protection devices passes sequentially through chain conveyer
Mechanism (17) connection.
4. overhauling elevator protective device according to claim 1, it is characterised in that: the shaft (8) is equipped with limit plate
(18), the swing arm (9) connect with shaft (8) loose key, and the swing arm (9) is located at the top of limit plate (18), the limit plate
(18) buffer spring (19) are equipped between swing arm (9).
5. overhauling elevator protective device according to any one of claims 1 to 4, it is characterised in that: the support column (10)
Lower end is contacted with the bottom surface of pit body (1).
6. overhauling elevator protective device according to any one of claims 1 to 4, it is characterised in that: the secondary protection device
It further include second support (20), the shaft (8) is mounted on second support (20), and the second support (20) is connected by bolt
It connects and is mounted on the side wall of pit body (1).
7. overhauling elevator protective device according to any one of claims 1 to 4, it is characterised in that: the first class of protection device
It further include first support (21), the first support (21) is bolted on the side wall for being mounted on pit body (1), and described first
Top rope block mounting plate (22) is installed on bracket (21), top rope block (5) is slidably installed by the second guide rod (23)
On top rope block mounting plate (22), top rope spring (24) is equipped between top rope block (5) and top rope block mounting plate (22).
8. overhauling elevator protective device according to any one of claims 1 to 4, it is characterised in that: pressure rope cam (6) and
Top rope block (5) is equipped with and speed limiter wire rope (7) matched limiting slot (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665897.3U CN208218124U (en) | 2018-05-07 | 2018-05-07 | A kind of overhauling elevator protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665897.3U CN208218124U (en) | 2018-05-07 | 2018-05-07 | A kind of overhauling elevator protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208218124U true CN208218124U (en) | 2018-12-11 |
Family
ID=64510716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820665897.3U Expired - Fee Related CN208218124U (en) | 2018-05-07 | 2018-05-07 | A kind of overhauling elevator protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208218124U (en) |
-
2018
- 2018-05-07 CN CN201820665897.3U patent/CN208218124U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20200507 |