CN208327002U - A kind of elevator pit equipped with maintenance protective device - Google Patents
A kind of elevator pit equipped with maintenance protective device Download PDFInfo
- Publication number
- CN208327002U CN208327002U CN201820665914.3U CN201820665914U CN208327002U CN 208327002 U CN208327002 U CN 208327002U CN 201820665914 U CN201820665914 U CN 201820665914U CN 208327002 U CN208327002 U CN 208327002U
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- Prior art keywords
- shaft
- protective device
- pit
- protection device
- main shaft
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model relates to elevator technology field, specifically a kind of elevator pit for being equipped with maintenance protective device, including pit body, transmission mechanism, first class of protection device and secondary protection device；The transmission mechanism includes main shaft, gear set and driving lever, and the main shaft is mounted in pit body, and the outside of the pit body is equipped with the swinging handle connecting with main shaft；The first class of protection device includes top rope block, pressure rope cam and speed limiter wire rope；The main shaft can stir pressure rope cam rotation by driving lever；The secondary protection device includes shaft, swing arm, support column and buffer, and the shaft is mounted in pit body, and the both ends of the swing arm are connect with shaft and support column respectively, and the buffer is mounted on the top of support column；The main shaft is connect by gear set with shaft.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 elevator pit for being equipped with maintenance 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 be equipped with and overhaul protective device
Elevator pit, by the way that two class protection device is arranged, and switch first class of protection device and second class protection outside elevator pit
The state of device improves safety, prevents service personnel's injures and deaths.
Technical problem to be solved in the utility model is realized using following technical scheme: one kind being equipped with maintenance protection dress
The elevator pit set, including pit body, transmission mechanism, first class of protection device and secondary protection device；The transmission mechanism includes master
Axis, gear set and driving lever, the major axis horizontal are mounted in pit body, and the outside of the pit body is equipped with the shake hand connecting with main shaft
Handle；The first class of protection device includes top rope block, pressure rope cam and speed limiter wire rope, and the top rope block is mounted in pit body,
The pressure rope cam is articulated in pit body, and the speed limiter wire rope is located between top rope block and pressure rope cam；The driving lever with
Main shaft connection, the main shaft can stir pressure rope cam rotation by driving lever；The secondary protection device include shaft, swing arm,
Support column and buffer, the shaft are vertically installed in pit body, and the both ends of the swing arm are connect with shaft and support column respectively,
The support column is in vertical direction, and the buffer is mounted on the top of support column；The main shaft is connected by gear set and shaft
It connects.
The technical solution of the utility model is also: the secondary protection device is equipped with more sets, and the gear set includes actively
Roller gear, driven cylindrical gear, first bevel gear and second bevel gear, the active roller gear is connect with main shaft, described
Driven cylindrical gear is mounted in pit body by driven shaft and is engaged with active roller gear, the first bevel gear be mounted on from
On moving axis, the second bevel gear is installed therein in the shaft of a set of secondary protection device and engages with first bevel gear；It is more
Cover the rotating shaft transmission connection of the secondary protection device.Using the technical program, lift car is supported by more support columns, more
To be safe and reliable, in addition, realizing water by active roller gear, driven cylindrical gear, first bevel gear and second bevel gear
Transmission between the main shaft of flat setting and the shaft being vertically arranged.
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 guide rod to be slidably mounted on the rope block mounting plate of top, top rope bullet is equipped 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 has the beneficial effect that (1) equipped with the elevator pit for overhauling protective device
If the improper decline of lift car, first class of protection device can be triggered first, pressure rope cam is fixed under the action of frictional force, this
When operation swinging handle can only make driving lever reset and cannot make pressure rope cam return, therefore when service personnel debugging after, need to
First pressure rope cam to be pulled manually in elevator pit, ride over it on driving lever under the effect of gravity, at this time level-one
Protective device can guarantee the safety of service personnel, and then service personnel exits elevator pit and by first class of protection device and second level
Protective device resets, and decline lift car can normally, and therefore, the utility model is greatly mentioned by the way that two class protection device is arranged
High safety；(2) first class of protection device and secondary protection device can be switched by swinging handle outside elevator pit
State prevents service personnel's injures and deaths when entering switching state in elevator pit, highly-safe；(3) more support columns are set, and
And it is equipped with buffer on the top of support column, the kinetic energy of lift car decline is mainly absorbed by multiple buffers, prevents elevator car
Compartment damage；(4) gearing of first class of protection device and secondary protection device, the process letter of switching state are realized by transmission mechanism
Folk prescription is just；(5) first class of protection device and secondary protection device are not connect with cage guide, therefore while being triggered will not be to electricity
Terraced guide rail generates moment of flexure, prevents cage guide from damaging, reduces maintenance cost；(6) in moist elevator pit, electrical components
It easily breaks down and damages or cause personnel contact, 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 for the elevator pit that the utility model is equipped with maintenance 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 for the elevator pit that the utility model is equipped with maintenance 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. 5 in D to cross-sectional 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 for the elevator pit that the utility model is equipped with maintenance protective device.
Fig. 9 be Fig. 8 in F to cross-sectional view.
Figure 10 is the partial enlarged view in the portion G in Fig. 9.
In figure: 1, pit body, 2, main shaft, 3, driving lever, 4, swinging handle, 5, top rope block, 6, pressure rope cam, 7, limiter of speed steel wire
Rope, 8, shaft, 9, swing arm, 10, support column, 11, buffer, 12, active roller gear, 13, driven cylindrical gear, 14, first
Bevel gear, 15, second bevel gear, 16, driven shaft, 17, chain-drive mechanism, 18, limit plate, 19, buffer spring, 20, second
Frame, 21, first support, 22, top rope block mounting plate, 23, guide rod, 24, top rope spring, 25, limiting slot, 26, lift car.
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 elevator pit equipped with maintenance protective device, including pit body 1, transmission mechanism, one
Grade protective device and secondary protection device.
Transmission mechanism includes main shaft 2, gear set, driving lever 3 and chain-drive mechanism 17, and main shaft 2 is horizontally arranged in pit body 1,
The outside of pit body 1 is equipped with the swinging handle 4 connecting with main shaft 2.
As shown in Fig. 5, 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 guide rod 23, top rope block 5 and top rope block peace
Top rope spring 24 is equipped between loading board 22.Pressure rope cam 6 is articulated in first support 21.Speed limiter wire rope 7 is located at top rope block 5
Between pressure rope cam 6, speed limiter wire rope 7 is connect with the voussoir of safety tongs.Pressure rope cam 6 and top rope block 5 are equipped with and limit
The matched limiting slot 25 of fast device wirerope 7.
Driving lever 3 is connect with main shaft 2, and main shaft 2 can be stirred pressure rope cam 6 by driving lever 3 and be rotated.As shown in Fig. 7, pressure rope
It is contacted under the effect of gravity with driving lever 3 when 6 off working state of cam, speed limiter wire rope 7 is not clamped.When driving lever 3
Pressure rope cam 6 is stirred when rotating counterclockwise, is gradually reduced at a distance from speed limiter wire rope 7, as shown in Figure 10, when pressure is restricted
After cam 6 turns to operating position, speed limiter wire rope 7, which pulls upwardly on, to be continued to rotate counterclockwise with dynamic pressure rope cam 6, due to
Point on the partial contour line of pressure rope cam 6 is gradually increased at a distance from its drive-connecting shaft, therefore speed limiter wire rope 7 can restrict pressure
Cam 6 the more draws the more tight, so that rope cam 6 be pressed to clamp speed limiter wire rope 7 with top rope block 5.
As shown in figures 3 and 8, secondary protection device is equipped with four sets, and four sets of secondary protection devices are in rectangular layout.Two
Grade protective device includes shaft 8, swing arm 9, support column 10, buffer 11 and second support 20.Second support 20 is connected by bolt
It connects and is mounted on the side wall of pit body 1.Shaft 8 is vertically installed in second support 20.
Main shaft 2 is connect by gear set with the shaft 8 of wherein a set of secondary protection device, specifically, as shown in Fig. 2, tooth
Wheel group includes active roller gear 12, driven cylindrical gear 13, first bevel gear 14 and second bevel gear 15.Active roller gear
12 connect with main shaft 2, driven cylindrical gear 13 by driven shaft 16 be mounted in second support 20 and with active roller gear 12
Engagement.First bevel gear 14 is mounted on driven shaft 16, second bevel gear 15 be mounted in shaft 8 and with first bevel gear 14
Engagement.The shaft 8 of four sets of secondary protection devices is sequentially connected by chain-drive mechanism 17, the shaft 8 of four sets of secondary protection devices
It 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 26, 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 26 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, swinging handle 4 is operated, the rotation of main shaft 2 is simultaneously by first class of protection device and two
Grade protective device is in working condition by off working state switching, is rotated specifically, main shaft 2 stirs pressure rope cam 6 by driving lever 3,
Clamp pressure rope cam 6 by speed limiter wire rope 7 with top rope block 5；Meanwhile main shaft 2 passes through gear set drive wherein a set of level-one
The shaft 8 of protective device rotates, since the shaft 8 of four sets of first class of protection devices is connected by chain-drive mechanism 17, four sets
The shaft 8 of first class of protection device rotates simultaneously, and shaft 8 is moved to the lower section of lift car 26 by the drive support rod 10 of swing arm 9.
If the improper decline of lift car 26, 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 driving lever 3 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 driving lever 3, first class of protection device can guarantee the safety of service personnel at this time, and then service personnel exits elevator pit and by one
Grade protective device and secondary protection device reset, and decline lift car 26 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 elevator pit equipped with maintenance protective device, including pit body (1), it is characterised in that: further include transmission mechanism, one
Grade protective device and secondary protection device；The transmission mechanism includes main shaft (2), gear set and driving lever (3), the main shaft (2)
It is horizontally arranged on pit body (1), the outside of the pit body (1) is equipped with the swinging handle (4) connecting with main shaft (2)；The level-one
Protective device 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 driving lever (3) connect with main shaft (2), and the main shaft (2) can be stirred pressure rope cam (6) by driving lever (3) and be turned
It is dynamic；The secondary protection device includes shaft (8), swing arm (9), support column (10) and buffer (11), and the shaft (8) is vertical
It is mounted on pit body (1), the both ends of the swing arm (9) are connect with shaft (8) and support column (10) respectively, the support column (10)
In vertical direction, the buffer (11) is mounted on the top of support column (10)；The main shaft (2) passes through gear set and shaft
(8) it connects.
2. the elevator pit according to claim 1 for being equipped with maintenance protective device, it is characterised in that: the second class protection dress
More sets are installed, the gear set includes active roller gear (12), driven cylindrical gear (13), first bevel gear (14) and the
Two bevel gears (15), the active roller gear (12) connect with main shaft (2), and the driven cylindrical gear (13) passes through driven shaft
(16) it is mounted on pit body (1) and is engaged with active roller gear (12), the first bevel gear (14) is mounted on driven shaft
(16) on, the second bevel gear (15) is installed therein in the shaft (8) of a set of secondary protection device and and first bevel gear
(14) it engages；Cover shaft (8) transmission connection of the secondary protection device more.
3. the elevator pit according to claim 2 for being equipped with maintenance protective device, it is characterised in that: the second class protection dress
Four sets are installed, four sets of secondary protection devices are in rectangular layout, and the shaft (8) of four sets of secondary protection devices is successively led to
Cross chain-drive mechanism (17) connection.
4. the elevator pit according to claim 1 for being equipped with maintenance protective device, it is characterised in that: on the shaft (8)
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),
Buffer spring (19) are equipped between the limit plate (18) and swing arm (9).
5. the elevator pit according to any one of claims 1 to 4 for being equipped with maintenance protective device, it is characterised in that: the branch
The lower end of dagger (10) is contacted with the bottom surface of pit body (1).
6. the elevator pit according to any one of claims 1 to 4 for being equipped with maintenance protective device, it is characterised in that: described two
Grade protective device further includes second support (20), and the shaft (8) is mounted on second support (20), the second support (20)
It is bolted on the side wall for being mounted on pit body (1).
7. the elevator pit according to any one of claims 1 to 4 for being equipped with maintenance protective device, it is characterised in that: described one
Grade protective device further includes first support (21), and the side wall for being mounted on pit body (1) is bolted in the first support (21)
On, top rope block mounting plate (22) is installed on the first support (21), top rope block (5) passes through guide rod (23) slidably
Be mounted on top rope block mounting plate (22), be equipped between top rope block (5) and top rope block mounting plate (22) and push up spring of restricting
(24)。
8. the elevator pit according to any one of claims 1 to 4 for being equipped with maintenance protective device, it is characterised in that: the pressure
It restricts 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 |
|---|---|---|---|
| CN201820665914.3U CN208327002U (en) | 2018-05-07 | 2018-05-07 | A kind of elevator pit equipped with maintenance protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665914.3U CN208327002U (en) | 2018-05-07 | 2018-05-07 | A kind of elevator pit equipped with maintenance protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208327002U true CN208327002U (en) | 2019-01-04 |
Family
ID=64776073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820665914.3U Expired - Fee Related CN208327002U (en) | 2018-05-07 | 2018-05-07 | A kind of elevator pit equipped with maintenance protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208327002U (en) |
-
2018
- 2018-05-07 CN CN201820665914.3U patent/CN208327002U/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 |
Granted publication date: 20190104 Termination date: 20200507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |