CN219751565U

CN219751565U - Elevator pit overhauls protection device

Info

Publication number: CN219751565U
Application number: CN202320886374.2U
Authority: CN
Inventors: 戴峻; 宋永安; 许涛
Original assignee: Jiangsu Hailing Electromechanical Equipment Engineering Co ltd
Current assignee: Jiangsu Hailing Electromechanical Equipment Engineering Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-09-26
Anticipated expiration: 2033-04-19

Abstract

The utility model discloses an elevator pit maintenance protection device, which relates to the technical field of elevators and solves the problem that an elevator car rapidly descends to cause life injury to maintenance personnel due to various reasons. According to the elevator pit maintenance protection device, the supporting rods move to be in collision with the arc surface at the top end of the rubber block to reduce speed, and the elevator car is limited and supported, so that the protection effect of the elevator pit maintenance protection device is improved, and the life safety of maintenance personnel is greatly improved.

Description

Elevator pit overhauls protection device

Technical Field

The utility model relates to the technical field of elevators, in particular to an elevator pit overhaul protection device.

Background

The elevator maintainer needs to frequently get into the elevator pit to overhaul the operation, before getting into the elevator pit, the maintainer can switch the elevator from running state to overhaul state through the maintenance switch, make the elevator unable response internal call and external call instruction, in order to prevent passenger's operation elevator, but the elevator car can lead to the car to descend fast because of arresting gear inefficacy or maintainer's mishandling, cause serious life injury to bottom maintainer, but current arresting gear can lead to the car to descend fast because of maintainer's mishandling, cause human injury to maintainer.

At present, the Chinese patent publication No. CN209635667U discloses an elevator pit maintenance protection device, which comprises an elevator shaft, wherein an elevator car is slidably arranged in the elevator shaft, the bottom end of the elevator shaft is fixedly connected with a connecting plate and a fixed plate, the connecting plate is slidably connected with a protection plate, the protection plate is provided with a grating plate, two connecting plates and two protection plates are arranged on two sides of the elevator shaft, a driving mechanism is arranged on the connecting plate, and the driving mechanism can link the protection plate to be opened so as to play a protection role on maintenance personnel; according to the elevator pit maintenance protection device, the protection mechanism is arranged in the elevator pit, so that maintenance personnel can carry out certain protection on the maintenance personnel when the bottom of the elevator car is maintained and checked, and safety accidents caused by unexpected falling of the elevator car when maintenance work is carried out are prevented.

With respect to the related art mentioned above, the inventors considered that the device provided only with the protection plate, lack of the buffer mechanism, generated a great impact force when dropped, easily caused damage to the components such as the car or the protection plate, and further improved.

Disclosure of Invention

In order to solve the problem that a buffer mechanism is lack, huge impact force is generated when the elevator falls, and components such as a car or a protection plate are easy to damage, the utility model provides an elevator pit overhaul protection device.

The utility model provides an elevator pit overhaul protection device, which adopts the following technical scheme:

the elevator pit overhauling protection device comprises a pit and a stress plate, wherein the left end and the right end of the inside of the pit are fixedly connected with frames, the middle sides of the inside of the frames are respectively and slidably connected with a buffer plate, pushing grooves are formed in the middle sides of the tops of the buffer plates, limiting grooves are formed in the outer sides of through holes of the opposite ends of the buffer plates, limiting rings are respectively and slidably connected with one opposite side of the inside of each limiting groove, reset springs are respectively and fixedly connected with the opposite ends of the limiting grooves;

the limiting rings are fixedly connected with supporting rods inside, the supporting rods are respectively and slidably connected in through holes at opposite ends of the buffer plates, the middle sides of the bottom ends inside the frames are respectively and fixedly connected with triangular push blocks, the lower sides of opposite ends of the frames are respectively and fixedly connected with rubber blocks, the front sides and the rear sides of the top ends of the buffer plates are respectively and fixedly connected with buffer columns, the left sides and the right sides of the top ends of the buffer columns respectively penetrate through the frames and are fixedly connected with the front sides and the rear sides of the bottom ends of the stress plates, the first buffer springs are fixedly connected to the bottom ends of the stress plates, the first buffer springs are fixedly connected to the outer sides of the through holes of the top ends of the frames respectively, the second buffer springs are fixedly connected to the outer sides of the through holes of the top ends of the inner portions of the frames respectively, and the bottom ends of the second buffer springs are fixedly connected to the outer sides of the buffer columns on the top ends of the buffer plates respectively.

Through adopting above-mentioned technical scheme, when elevator overhauls protector because of the wrong operation, when leading to the car to descend fast, the car is at first pressed on the atress board, the atress board moves in to the frame fast, the ascending thrust of cooperation first buffer spring and second buffer spring realizes the effect of slowing down, and promote the buffer board of buffer post bottom at the inside downwardly moving of frame simultaneously, when the triangle ejector pad of frame bottom gets into the push groove of buffer board bottom, promote branch to the side through the inclined plane, branch is released and is slowed down through the striking with the arc surface on rubber piece top, and carry out spacing effect of supporting to the car, thereby improve elevator pit and overhaul protector's protection effect, the setting of buffering reduces the harm that the car dropped and produces, the security has been increased, greatly increased maintainer's life safety.

Optionally, the triangular push blocks are oppositely arranged.

By adopting the technical scheme, the inclined planes of the triangular push blocks are oppositely arranged, and the supporting rods are pushed to move inwards at the same time.

Optionally, the spacing groove is linked together with the promotion groove, the opposite one end of branch all is provided with the inclined plane, promote groove and triangle ejector pad looks adaptation, the inclined plane of branch corresponds the setting with the inclined plane of triangle ejector pad.

Through adopting above-mentioned technical scheme, when the triangle ejector pad got into the promotion inslot, with the inclined plane cooperation of branch one end that is opposite to each other, made branch by release fast and the rubber piece decelerating.

Optionally, the rubber block top all is provided with the arc surface, and this arc surface and branch looks adaptation.

Through adopting above-mentioned technical scheme, make branch can block completely in the rubber piece and slow down, carry out spacing effect of supporting.

Optionally, the equal fixedly connected with rubber ball of four corners of the inside bottom of pit, pass through hose connection between the rubber ball, the equal fixedly connected with rubber ball of inside bottom of rubber ball, the wind hole has been seted up to pit front end downside, the inside bottom fixedly connected with air pump of wind hole, the output fixedly connected with three-way solenoid valve of air pump, a mouth of pipe and front side hose of three-way solenoid valve are linked together, the remaining mouth of pipe of three-way solenoid valve sets up in the inside downside of pit, the inside downside sliding connection of pit has the elevating platform, elevating platform bottom four corners is fixedly connected with outside top at rubber ball respectively, equal fixedly connected with infrared range sensor in the recess of rubber piece top.

Through adopting above-mentioned technical scheme, the gas pocket in pit is used for arranging the air pump and admits air and three-way solenoid valve is given vent to anger to make the pit inside can ventilate, the maintainer stands on the elevating platform according to the difference of height and control the air pump and aerify the ball and promote the elevating platform for rubber inflation ball, the three-way solenoid valve that points out here is prior art, so nevertheless to the explanation, overhaul the elevator after reaching the assigned position, when the car descends fast because of the mishandling, infrared ranging sensor in the rubber piece detects the branch of release, the infrared ranging sensor that points out here is the intelligent monitoring infrared ranging sensor in the prior art, have better monitoring ability and can send the signal to outside, give three-way solenoid valve control signal, communicate the closed surplus mouth of pipe of air pump, thereby discharge the gas in the rubber inflation ball, the elevating platform descends fast and strikes on the rubber ball and cushion and support, cooperation protection device improves maintenance personnel's life safety.

Optionally, the infrared ranging sensor is in signal connection with the three-way electromagnetic valve.

Through adopting above-mentioned technical scheme, infrared range sensor is used for detecting branch, when detecting branch, gives the signal of three solenoid valve gassing, makes the pipeline closure of three solenoid valve connection air pump, can accomplish the effect of gassing.

Optionally, the rubber inflatable balls are the same in size, and the rubber balls are the same in size.

Through adopting above-mentioned technical scheme, rubber inflation ball and rubber ball size are the same, make the elevating platform can horizontal migration and can the even support of atress, wherein rubber inflation ball is inflated and is used for promoting the elevating platform and removes.

In summary, the present utility model includes at least one of the following beneficial effects:

1. when the elevator overhauls the protector because of the wrong operation, lead to the car to descend fast, the car is pressed on the atress board at first, the atress board moves to the frame in fast, cooperate the ascending thrust of first buffer spring and second buffer spring to realize the effect of slowing down, and promote the buffer board of buffer post bottom to move down in the frame inside simultaneously, when the triangle ejector pad gets into the promotion inslot, the inclined plane of triangle ejector pad promotes the inclined plane of branch, make the branch remove and decelerate through striking with the circular arc surface on rubber block top, and carry out the effect of spacing support to the car, thereby improve the protective effect of elevator pit overhauls protector, the harm that the car dropped and produced is reduced in the setting of buffering, the security has been increased, greatly increased maintainer's life safety;

2. the gas pocket in pit is used for settling the air pump and makes the inside ventilation of pit, and the maintainer stands on the elevating platform according to the difference of height and controls the air pump and aerify for the rubber inflation ball, overhauls the elevator after reaching the assigned position, and when the car descends fast because of wrong operation, infrared range sensor detects branch and is released to for three solenoid valve control signal, will connect the mouth of pipe of air pump and close, thereby discharge the gas in the rubber inflation ball, the elevating platform descends fast and strikes and carry out buffer support on the rubber ball, cooperation protection device improves protection maintenance personal's life safety.

Drawings

FIG. 1 is a schematic perspective view of a right-side view of an embodiment of the present utility model as a whole;

FIG. 2 is a schematic perspective view of a cross-sectional front view of an embodiment of the present utility model;

FIG. 3 is an enlarged view at A of FIG. 2;

FIG. 4 is a schematic perspective view of a right-side cross-sectional structure embodying the whole of an embodiment of the present utility model;

fig. 5 is a schematic perspective view showing a cross-sectional top view of a pit according to an embodiment of the present utility model.

Reference numerals illustrate: 1. a pit; 2. a support rod; 3. a pushing groove; 4. a buffer plate; 5. a force-bearing plate; 6. a first buffer spring; 7. a buffer column; 8. a frame; 9. a second buffer spring; 10. a limiting ring; 11. a return spring; 12. a wind hole; 13. an air pump; 14. triangular pushing blocks; 15. a rubber block; 16. a lifting table; 17. a rubber inflatable ball; 18. a three-way electromagnetic valve; 19. an infrared ranging sensor; 20. a limit groove; 21. rubber balls.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses an elevator pit overhaul protection device. Referring to fig. 1, 2 and 3, the elevator pit maintenance protection device comprises a pit 1 and a stress plate 5, wherein the left end and the right end of the pit 1 are fixedly connected with a frame 8, the middle side of the inside of the frame 8 is slidably connected with a buffer plate 4, the middle side of the top end of the buffer plate 4 is provided with a pushing groove 3, the outer side of a through hole at the opposite end of the buffer plate 4 is provided with a limit groove 20, the opposite side of the inside of the limit groove 20 is slidably connected with a limit ring 10, the opposite end of the limit ring 10 is fixedly connected with a reset spring 11, the opposite end of the reset spring 11 is fixedly connected with the opposite end of the limit groove 20, the inside of the limit ring 10 is fixedly connected with a supporting rod 2, the supporting rod 2 is slidably connected in the through hole at the opposite end of the buffer plate 4, the middle side of the bottom end of the inside of the frame 8 is fixedly connected with a triangular pushing block 14, the equal fixedly connected with rubber piece 15 of downside of the relative one end of frame 8, both sides all fixedly connected with buffer post 7 around buffer plate 4 top, the top of left and right sides buffer post 7 runs through frame 8 respectively and the front and back both sides of fixed connection in atress board 5 bottom, atress board 5 bottom is located the equal fixedly connected with first buffer spring 6 in the outside of buffer post 7, first buffer spring 6 bottom is the outside of fixed connection in frame 8 top through-hole respectively, the equal fixedly connected with second buffer spring 9 in the outside of the inside top through-hole of frame 8, second buffer spring 9 bottom is the outside of fixed connection in buffer plate 4 top and being located buffer post 7 respectively, rubber piece 15 top all is provided with the arc surface, this arc surface and branch 2 looks adaptation.

When the elevator overhauls the protector because of the wrong operation, when leading to the car to descend fast, the car is at first pressed on atress board 5, atress board 5 moves in to frame 8 fast, the ascending thrust of cooperation first buffer spring 6 and second buffer spring 9 realizes the effect of slowing down, and promote the buffer board 4 of buffer post 7 bottom simultaneously and move downwards in frame 8 inside, when the triangle ejector pad 14 of frame 8 bottom gets into the promotion inslot 3 of buffer board 4 bottom, promote branch 2 to the side through the inclined plane, branch 2 is released and is slowed down through striking with the circular arc face on rubber block 15 top, and carry out spacing effect to the car, after the elevator can normal use, promote spacing ring 10 through reset spring 11 and remove in spacing groove 20, drive branch 2 and reset, make it can repetitious usage.

Referring to fig. 2, 3 and 4, the triangular push block 14 is relatively arranged, the limit groove 20 is communicated with the push groove 3, inclined surfaces are respectively arranged at opposite ends of the support rod 2, the push groove 3 is matched with the triangular push block 14, the inclined surfaces of the support rod 2 are correspondingly arranged with the inclined surfaces of the triangular push block 14, and when the triangular push block 14 enters the push groove 3, the inclined surfaces of the triangular push block 14 are relatively arranged to be matched with the inclined surfaces of opposite ends of the support rod 2, so that the support rod 2 is rapidly pushed out of the limit groove 20 to be decelerated with the rubber block 15, and the elevator car is supported and limited.

Referring to fig. 2, 4 and 5, four corners of the bottom end inside the pit 1 are fixedly connected with rubber inflatable balls 17, the rubber inflatable balls 17 are connected through hoses, the bottom end inside the rubber inflatable balls 17 is fixedly connected with rubber balls 21, the lower side of the front end of the pit 1 is provided with an air hole 12, the bottom end inside the air hole 12 is fixedly connected with an air pump 13, the output end of the air pump 13 is fixedly connected with a three-way electromagnetic valve 18, one pipe orifice of the three-way electromagnetic valve 18 is communicated with a front side hose, the rest pipe orifice of the three-way electromagnetic valve 18 is arranged at the lower side inside the pit 1, the lower side inside the pit 1 is slidably connected with a lifting table 16, four corners of the bottom end of the lifting table 16 are respectively fixedly connected with the outer top end of the rubber inflatable balls 17, infrared distance measuring sensors 19 are fixedly connected in grooves in the top ends of the rubber blocks 15, and the infrared distance measuring sensors 19 are in signal connection with the three-way electromagnetic valve 18.

The air hole of the pit 1 is used for arranging the air inlet of the air pump 13 and the air outlet of the three-way electromagnetic valve 18, so that the interior of the pit 1 can be ventilated, an maintainer stands on the lifting platform 16 to control the air pump 13 to be inflated according to different heights, the air pump 13 is communicated with the hose through the three-way electromagnetic valve 18 to inflate the rubber inflating ball 17 to push the lifting platform 16, the three-way electromagnetic valve 18 is the prior art, so that the elevator is overhauled after the elevator reaches a specified position, when the elevator car descends rapidly due to incorrect operation, the infrared ranging sensor 19 in the rubber block 15 detects the pushed supporting rod 2, the infrared ranging sensor 19 is the prior art, the infrared ranging sensor 19 detects the distance between the elevator car and the elevator car, and when the elevator car falls and is detected by the infrared ranging sensor 19 to exceed a threshold value, the infrared ranging sensor 19 is triggered to send a signal to the outside, the three-way electromagnetic valve 18 is controlled to control the air pump 13 to be connected with a pipe orifice to be closed, the rest pipe orifice is communicated, so that the air in the rubber inflating ball 17 is discharged, and the lifting platform 16 descends rapidly and the rubber ball 21 is supported on the rubber ball 21 to buffer.

Referring to fig. 4 and 5, the rubber inflatable balls 17 and 21 are the same in size, and the rubber inflatable balls 17 and 21 are the same in size, so that the lifting platform 16 can move horizontally and can be supported by uniform stress, wherein the rubber inflatable balls 17 are inflated to push the lifting platform 16 to move.

When the elevator maintenance protection device is operated by mistake and the elevator is caused to descend rapidly, the elevator is firstly pressed on the stress plate 5, the stress plate 5 moves rapidly into the frame 8, the upward thrust of the first buffer spring 6 and the second buffer spring 9 is matched to realize the deceleration effect, the buffer plate 4 at the bottom end of the buffer column 7 is pushed to move downwards in the frame 8, when the triangular push block 14 at the bottom end of the frame 8 enters the push groove 3 at the bottom end of the buffer plate 4, the support rod 2 is pushed to move laterally by the inclined surface, the support rod 2 is pushed out to decelerate by collision with the arc surface at the top end of the rubber block 15 and perform the limit supporting effect on the elevator, thereby improving the protection effect of the elevator pit maintenance protection device, greatly increasing the life safety of maintenance personnel, the air hole of the pit 1 is used for arranging the air inlet of the air pump 13 and the air outlet of the three-way electromagnetic valve 18, and enabling the inside of the pit 1 to be ventilated, the maintenance personnel stand on the lifting platform 16 to control the air pump 13 to inflate according to different heights, the air pump 13 is communicated with the hose through the three-way electromagnetic valve 18 to inflate the rubber inflating ball 17 to push the lifting platform 16, the three-way electromagnetic valve 18 is the prior art, so the elevator is overhauled after reaching a specified position, when the elevator car descends rapidly due to incorrect operation, the infrared ranging sensor 19 in the rubber block 15 detects the pushed supporting rod 2, the infrared ranging sensor 19 is the intelligent monitoring infrared ranging sensor 19 in the prior art, has better monitoring capability and can send a signal to the outside to control the three-way electromagnetic valve 18, the connecting pipe orifice of the air pump 13 is closed, the rest pipe orifice is communicated, the gas in the rubber inflating ball 17 is discharged, the lifting platform 16 descends rapidly and impacts on the rubber ball 21 to buffer and support, the aim of protecting the life safety of maintenance personnel is improved by matching with a protecting device.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides an elevator pit overhauls protection device, includes pit (1) and atress board (5), its characterized in that: the pit is characterized in that the left end and the right end of the pit (1) are fixedly connected with a frame (8), the middle side of the inside of the frame (8) is slidably connected with a buffer plate (4), the middle side of the top end of the buffer plate (4) is provided with a pushing groove (3), the outer side of a through hole at the opposite end of the buffer plate (4) is provided with a limit groove (20), the opposite side of the inside of the limit groove (20) is slidably connected with a limit ring (10), the opposite end of the limit ring (10) is fixedly connected with a reset spring (11), and the opposite ends of the reset spring (11) are fixedly connected with the opposite ends of the limit groove (20);

the utility model discloses a buffer structure, including buffer board (5), frame (8), buffer board (4), spacing ring (10) inside all fixedly connected with branch (2), branch (2) sliding connection is in the through-hole of the relative one end of buffer board (4) respectively, the equal fixedly connected with triangle ejector pad (14) of the well side of the inside bottom of frame (8), the equal fixedly connected with rubber piece (15) of downside of the relative one end of frame (8), both sides all fixedly connected with buffer post (7) around buffer board (4) top, left and right sides the top of buffer post (7) runs through frame (8) respectively and fixedly connected with in the front and back both sides of atress board (5) bottom, the atress board (5) bottom is located the equal fixedly connected with first buffer spring (6) in the outside of buffer post (7), the equal fixedly connected with second buffer spring (9) in the outside of the inside top through-hole of frame (8) respectively, second buffer spring (9) bottom is located the outside of buffer post (7) at buffer board (4) top respectively.

2. The elevator pit inspection protection device of claim 1, wherein: the triangular push blocks (14) are oppositely arranged.

3. The elevator pit inspection protection device of claim 1, wherein: the limit groove (20) is communicated with the pushing groove (3), inclined surfaces are arranged at opposite ends of the supporting rod (2), the pushing groove (3) is matched with the triangular pushing block (14), and the inclined surfaces of the supporting rod (2) are correspondingly arranged with the inclined surfaces of the triangular pushing block (14).

4. The elevator pit inspection protection device of claim 1, wherein: the top ends of the rubber blocks (15) are respectively provided with an arc surface, and the arc surfaces are matched with the supporting rods (2).

5. The elevator pit inspection protection device of claim 1, wherein: the four corners of the inside bottom of well (1) are all fixedly connected with rubber inflatable ball (17), pass through hose connection between rubber inflatable ball (17), the equal fixedly connected with rubber ball (21) of inside bottom of rubber inflatable ball (17), wind hole (12) have been seted up to well (1) front end downside, inside bottom fixedly connected with air pump (13) of wind hole (12), the output fixedly connected with three-way solenoid valve (18) of air pump (13), a mouth of pipe and front side hose are linked together, three-way solenoid valve (18) remain a mouth of pipe setting in the inside downside of well (1), inside downside sliding connection in well (1) has elevating platform (16), elevating platform (16) bottom four corners are fixedly connected with outside top at rubber inflatable ball (17) respectively, equal fixedly connected with infrared range sensor (19) in the recess in rubber piece (15) top.

6. The elevator pit inspection protection device of claim 5, wherein: the infrared ranging sensor (19) is connected with the three-way electromagnetic valve (18) through signals.

7. The elevator pit inspection protection device of claim 5, wherein: the rubber inflatable balls (17) are the same in size, and the rubber balls (21) are the same in size.