Without pit lower-level elevator
Technical field
The present invention relates to elevator technology fields, particularly, are related to a kind of shallow pit or the safety dress without pit lower-level elevator
It sets.
Background technique
It is well known that elevator constantly or periodically needs to repair maintenance to guarantee that the long-term safety of elevator operates normally,
During maintenance, maintenance personal, which will inevitably enter in elevator pit, carries out operation.Therefore, " GB7588 elevator system
Make and installation safety standard " in the clear stipulaties pit depth of elevator shaft, to guarantee the personal safety of service personnel.For up to
To this purpose, in the industry traditional way be provided with buffer below face carriage and elevator counterweight in pit, and
Buffer lower section is provided with clump, to realize that, when carriage is compacted buffer, bottom still there are enough safety inspections empty
Between.However, disadvantage present in such conventional cement pier formula safeguard structure is: pit requires deeper, and building cost is high, especially when
When some old building transformings and outdoor installation elevator, some existing building height spaces are limited, come to installation elevator belt difficult.
And with economic development, elevator technology progress, more and more low-rise buildings also start to install elevator, traditional pit
Elevator is no longer desirable for this low-rise building, but can not build conventional pit, pit as required without pit or shallow pit elevator
GB7588 requirement is not achieved in depth, there is no guarantee that the safe space of service personnel, therefore there are serious security risks.
Accordingly, it is desirable to provide a kind of safety device suitable for no pit lower-level elevator.
Summary of the invention
It is high, difficult to install and be difficult to meet low-rise building elevator that there are building costs to solve above-mentioned no pit lower-level elevator
It is required that the technical issues of, the safety that the present invention provides a kind of service personnel easy for installation, at low cost, meeting GB7588 requirement is empty
Between, suitable for low-rise building elevator without pit lower-level elevator.
The present invention provides a kind of no pit lower-level elevator and includes elevator shaft and be contained in its internal lift car, elevator
Counterweight, guide rail and safety device, the safety device include elastic buffer, bearing plate, pull rod and guard plate, the bearing plate
It is layed in the elastic buffer of the elevator shaft bottom, the pull rod connects the bearing plate and the institute for being fixedly arranged on the guide rail
State guard plate.
In a preferred embodiment of no pit lower-level elevator provided by the invention, the elastic buffer is multiple, institute
It states elastic buffer and is uniformly distributed in the elevator shaft bottom.
In a preferred embodiment of no pit lower-level elevator provided by the invention, the elastic buffer is compressing weight
For the spring of 3~15Kg.
In a preferred embodiment of no pit lower-level elevator provided by the invention, the bearing plate uses PVC material.
In a preferred embodiment of no pit lower-level elevator provided by the invention, the safety device further includes multiple peaces
Full switch, the safety switch are respectively arranged in the load carrier and the guard plate, contact with elevator external circuit electricity
It connects.
In a preferred embodiment of no pit lower-level elevator provided by the invention, the safety switch is Non auto-reset
Switch.
In a preferred embodiment of no pit lower-level elevator provided by the invention, the pull rod be it is multiple, it is each described
Pull rod one end is connected with the bearing plate, and the other end is connected with the guard plate.
In a preferred embodiment of no pit lower-level elevator provided by the invention, the guard plate is installed on away from the electricity
The guide rail of the terraced above height of shaft bottom 1200mm.
In a preferred embodiment of no pit lower-level elevator provided by the invention, the guard plate uses steel plate.
Compared to the prior art, no pit lower-level elevator provided by the invention has the advantages that
One, the safety device only includes the elastic buffer, the bearing plate, the pull rod and the guard plate,
Element used is few, at low cost and easy for installation.
Two, weight reaches the bearing plate, and the elastic buffer moves downward, and is connected to the drawing of the bearing plate
Bar drives the guard plate to fall, and stops elevator downlink or uplink, the safety device is simple, high reliablity.
Three, building cost is saved compared to traditional pit elevator, no pit or shallow pit elevator safety device.Meanwhile
No pit or shallow pit elevator safety device meet the requirement of the relevant provision of GB7588, ensure that the safety of service personnel is empty
Between.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram without pit lower-level elevator of the embodiment of the present invention 1;
Fig. 2 is the bearing plate of no pit lower-level elevator shown in FIG. 1 and the structural schematic diagram of elastic buffer;
Fig. 3 is the structural schematic diagram of the elevator car safety device without pit lower-level elevator of the embodiment of the present invention 2;
Fig. 4 is the structural schematic diagram of the elevator counterweight safety device without pit lower-level elevator of the embodiment of the present invention 2;
Fig. 5 is the structural schematic diagram of the bearing plate and elastic buffer without pit lower-level elevator of the embodiment of the present invention 2.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
Referring to Fig. 1, being the structural schematic diagram without pit lower-level elevator of the embodiment of the present invention 1.The no pit low layer
Elevator 1 includes elevator shaft 11 and the lift car 12 for being contained in its inside, two guide rails 13, elevator counterweight 14, lead screw 15, safety
Device 17 and safety switch 19, the lift car 12 are located between the guide rail 13, and the elevator counterweight 14 is located on institute
Lead screw 15 is stated, the safety device 17 is located at 11 bottom of elevator shaft, and the safety switch 19 is installed on the safety dress
17 are set, and is electrically connected with elevator safety circuit.
The elevator shaft 11 is the hoistway with accommodating space, is highly applicable to the building that floor is 2-7 layers, institute
11 bottom of elevator shaft is stated as no pit or shallow pit.
The lift car 12 is box space of the elevator to carry and transport personnel and goods and materials, the lift car 12
It is moved synchronously one on the other with the elevator counterweight 14 to complete elevator traffic work.
The guide rail 13 includes two guide rails, is mounted on 11 side wall of elevator shaft, the guide rail 13 is the carriage
Safe rail of about 12 travelings in the elevator shaft 11.
The elevator counterweight 14 is the part for balancing car weight, and the elevator counterweight 14 is located on the lead screw 15, and
It moves up and down along the lead screw 15.
The lead screw 15 is the lead screw for having groove, achives up and down fortune by its groove for the elevator counterweight 14
Dynamic, the lead screw 15 is fixed on the bottom of the elevator shaft 11.
Fig. 2 is please referred to again, is that the bearing plate of no pit lower-level elevator shown in FIG. 1 and the structure of elastic buffer are shown
It is intended to.The safety device 17 includes elastic buffer 171, bearing plate 173, pull rod 175 and guard plate 177.The elasticity is slow
It rushes device 171 and connects the bearing plate 173, the bearing plate 173 connects the pull rod 175, and the pull rod 175 is separately connected described
Guard plate 177.
The elastic buffer 171 is installed on 11 bottom of elevator shaft comprising multiple springs are uniformly distributed in institute
11 bottom of elevator shaft is stated, the compressing weight of the spring is >=3kg.
The bearing plate 173 is a high-strength PVC plate, for accepting the weight for falling in or entering the elevator shaft 11
Object, the bearing plate 173 are installed on the elastic buffer 171, and the bearing plate 173 connects the pull rod 175.
The pull rod 175 is 2, is respectively arranged in 173 opposite end of bearing plate, 175 one end of pull rod connection
The bearing plate 173, the other end connect the guard plate 177.
The guard plate 177 is rigid strong, high reliablity steel plate, and the guard plate 177 includes 2 safety reverse turning beds,
It is respectively arranged on the guide rail 13 away from the 11 above height of bottom 1200mm of elevator shaft, and the guard plate 177 divides
Not Tong Guo the pull rod 175 connect with the bearing plate 173.
The safety switch 19 is respectively arranged on the bearing plate 173 and the guard plate 177, and electric with elevator safety
Road connection, the safety switch 19 are Non auto-reset switch.
Its working principle is that: when overhauling elevator or elevator shaft have foreign body falling, when the weight for having more than 3Kg be pressed onto it is described
On the bearing plate 173 of 11 bottom of elevator shaft, the compression downwards of the elastic buffer 171, the bearing plate 173 together to
Lower movement drives the pull rod 175 being connected on the bearing plate 173 to move downward, draws the institute of the car guide rail 13
Guard plate 177 is stated to fall.At this point, if 12 downlink of the carriage, the guard plate 177 can block that the carriage 12 is allowed to cannot
Downlink guarantees the safety for entering the personnel of hoistway to form a safe space in 11 bottom of elevator shaft.
When personnel or foreign matter leave the bearing plate 173, pressure disappears, and the elastic buffer 171 restores, described in drive
Pull rod 175 draws the guard plate 177 and automatically resets.
The safety switch 19 cannot automatically reset, multiple manually after operator confirms 11 situation of elevator shaft
Position, to guarantee in the elevator shaft 11 without personnel and foreign matter.
The no pit lower-level elevator 1 provided in this embodiment has the advantages that
One, the safety device 17 only include the elastic buffer 171, the bearing plate 173, the pull rod 175 and
The guard plate 177, element used are few, at low cost and easy for installation.
Two, weight reaches the bearing plate 173, and the elastic buffer 171 moves downward, and is connected to the bearing plate
173 pull rod 175 drives the guard plate 177 to fall, and stops 1 downlink or uplink of elevator, the safety device 17
It is easy to operate, high reliablity.
Three, compared to traditional pit elevator, the no pit elevator car safety 1 saves building cost.Meanwhile it is bottomless
Hole or shallow pit elevator safety device meet the requirement of the relevant provision of GB7588, ensure that the safe space of service personnel.
Embodiment 2:
It is the elevator car safety dress without pit lower-level elevator of the embodiment of the present invention 2 please refer to Fig. 3 and Fig. 4, Fig. 3
The structural schematic diagram set, Fig. 4 are the structural representations of the elevator counterweight safety device without pit lower-level elevator of the embodiment of the present invention 2
Figure.The no pit lower-level elevator includes elevator shaft 21 and the lift car 22 for being contained in its inside, two car guide rails 23, electricity
Terraced counterweight 24, two weight guides 25, safety device 27 and safety switch 29, the lift car 22 are located in the car guide rail
Between 23, the elevator counterweight 24 is located between the weight guide 25, and the safety device 27 is located at the elevator shaft
21 bottoms, the safety switch 29 are installed on the safety device 27, are electrically connected with elevator safety circuit.
The elevator shaft 21 is the hoistway with accommodating space, is highly applicable to the building that floor is 2-7 layers, institute
21 bottom of elevator shaft is stated as no pit or shallow pit.
The lift car 22 is box space of the elevator to carry and transport personnel and goods and materials, the lift car 22
It is up and down reciprocatingly moved synchronously with the elevator counterweight 24 to complete elevator traffic work.
The car guide rail 23 includes two guide rails, is mounted on 21 side wall of elevator shaft, the car guide rail 23 is
Safe rail of about the 22 carriage traveling in the elevator shaft 21.
The elevator counterweight 24 is the part for balancing car weight, and the weight guide 25 includes two guide rails, the elevator
Counterweight 24 is located between the weight guide 25, and is moved up and down along the weight guide 25.
Again incorporated by reference to Fig. 5 refering to being the bearing plate and elastic buffer without pit lower-level elevator of the embodiment of the present invention 2
Structural schematic diagram.The safety device 27 includes elastic buffer 271, bearing plate 273, pull rod 275 and guard plate 277.It is described
Elastic buffer 271 connects the bearing plate 273, and the bearing plate 273 connects the pull rod 275, and the pull rod 275 connects respectively
Connect the guard plate 277.
The elastic buffer 271 is installed on 21 bottom of elevator shaft comprising multiple springs are uniformly distributed in institute
21 bottom of elevator shaft is stated, the compressing weight of the spring is >=3kg.
The bearing plate 273 is a high-intensitive PVC board, for accepting the weight for falling in or entering the elevator shaft 21
Object, the bearing plate 273 are installed on the elastic buffer 271, and the bearing plate 273 includes connecting the pull rod 275
Connector 276.
The pull rod 275 is 4, is respectively arranged in 273 opposite end of bearing plate, and described 275 one end of pull rod connects
The bearing plate 273 is connect, the other end connects the guard plate 277.
The guard plate 277 is rigid strong and high reliablity steel plate comprising the first guard plate 2771 and the second safety
Plate 2773.First guard plate 2771 includes two safety reverse turning beds, is respectively arranged in away from 21 bottom of elevator shaft
On the car guide rail 23 of 1200mm or more, first guard plate 2771 passes through the pull rod 275 and the load-bearing respectively
Plate 273 connects;Second guard plate 2773 includes two safety reverse turning beds, is respectively arranged in away from 21 bottom of elevator shaft
On the weight guide 25 of 1200mm or more height, second guard plate 2773 respectively by the pull rod 275 with it is described
Bearing plate 273 connects.
The safety switch 29 is respectively arranged on the bearing plate 273 and the guard plate 277, with elevator safety circuit
Connection, the safety switch 29 are Non auto-reset switch.
Its working principle is that: when overhauling elevator or elevator shaft have foreign body falling, when the weight for having more than 3Kg be pressed onto it is described
On the bearing plate 273 of 21 bottom of elevator shaft, the compression downwards of the elastic buffer 271, the bearing plate 273 together to
Lower movement drives the pull rod 275 being connected on the bearing plate 273 to move downward, draws the car guide rail 23 and institute
The guard plate 277 stated on weight guide 25 is fallen.At this point, if 22 downlink or uplink of the carriage, the guard plate 277
The carriage 22 can be blocked or the elevator counterweight 24 is allowed to be unable to downlink, thus in 21 bottom of elevator shaft or top shape
At a safe space, guarantee the safety for entering the personnel of hoistway.
When personnel or foreign matter leave the bearing plate 273, pressure disappears, and the elastic buffer 271 restores, described in drive
Pull rod 275 draws the guard plate 277 and automatically resets.
The safety switch 29 cannot automatically reset, multiple manually after operator confirms 21 situation of elevator shaft
Position, to guarantee in the elevator shaft 21 without personnel and foreign matter.
The no pit lower-level elevator provided in this embodiment has the advantages that
One, the safety device 27 only include the elastic buffer 271, the bearing plate 273, the pull rod 275 and
The guard plate 277, element used are few, at low cost and easy for installation.
Two, weight reaches the bearing plate 273, and the elastic buffer 271 moves downward, and is connected to the bearing plate
273 pull rod 275 drives the guard plate 277 to fall, and stops the elevator downlink or uplink, and the safety device 27 is grasped
Make simple, high reliablity.
Three, compared to traditional pit elevator, the no pit elevator car safety saves building cost.Meanwhile it is bottomless
Hole or shallow pit elevator safety device meet the requirement of the relevant provision of GB7588, ensure that the safe space of service personnel.
Four, when overhauling elevator, staff enters at the top of the elevator or bottom, the safety device can guarantee to overhaul
The safe space of personnel.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.