CN215558149U

CN215558149U - Elevator maintenance protection device

Info

Publication number: CN215558149U
Application number: CN202120537351.1U
Authority: CN
Inventors: 姜愿
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2022-01-18
Anticipated expiration: 2031-03-15

Abstract

The utility model provides an elevator maintenance protection device, which relates to the technical field of elevator safety and comprises a frame and a bearing plate, wherein the frame comprises a cross rod ring frame and a stand column for supporting which are connected with each other, the stand column is an electric telescopic rod, the bearing plate is arranged at the top of the cross rod ring frame, and the bearing plate is connected with a buffer layer. The electric telescopic rod can extend and contract the stand column after the button is started, the adjustability of the height of the electric telescopic rod can well meet the requirements of operators, the operation is simple, the used time is short, and the efficiency is high. When not used, the device is recovered to the original state, and the occupied space is small. The loading board is installed at the top of horizontal pole ring frame, and the setting of loading board can intercept the high altitude object that drops suddenly, and it can avoid the human body to cause great injury, casualty accident even because of its falls with combining the buffer layer to the human body, has certain guard action to the operating personnel of elevator maintenance.

Description

Elevator maintenance protection device

Technical Field

The utility model relates to the technical field of elevator safety, in particular to an elevator maintenance protection device.

Background

With the development of society, elevators have been widely applied to residential houses, businesses, industries, transportation hubs and various social public service buildings, and have become indispensable transportation means in daily work and life of people. For the elevator which can vertically lift, in recent years, the maintainers have a plurality of accidents due to the lack of protection in the operation process, most of the elevators are high-altitude objects which suddenly fall on the ground, so that serious casualties are caused to human bodies, and great pain is brought to people.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an elevator maintenance protection device which can protect maintenance personnel to a certain extent during operation, prevent people from falling from high-altitude falling objects and injuring people and avoid causing injury to human bodies.

The embodiment of the utility model is realized by the following steps:

the utility model provides an elevator maintenance protection device, its includes frame and loading board, and the frame is including the horizontal pole ring frame that connects each other and the stand that is used for the support, and the stand is electric telescopic handle, and the loading board is installed in the top of horizontal pole ring frame, and the loading board is connected with the buffer layer.

In some embodiments of the utility model, the cushioning layer is comprised of a plurality of cell layers with load-bearing columns disposed within the cell layers.

In some embodiments of the present invention, the electric telescopic rod includes an outer sleeve and an inner sleeve sleeved with each other, the outer sleeve has a thread groove therein, and the inner sleeve has an external thread matching with the thread groove.

In some embodiments of the utility model, the elevator maintenance protection device further comprises an infrared distance meter, a controller and a buzzer, the controller is respectively connected with the infrared distance meter and the buzzer, and the buzzer and the infrared distance meter are installed on one side of the bearing plate close to the elevator car.

In some embodiments of the utility model, a lifting device is arranged on one side of the bearing plate away from the elevator car, the lifting device comprises a motor, a traction rope, a rope disc for winding the traction rope, a first pulley and a second pulley, a sliding groove is formed in the bearing plate, the first pulley and the second pulley are installed in the sliding groove, one end of the traction rope passes through the first pulley and the second pulley and is fixedly connected with the rope disc, the rope disc is connected with the motor, and the other end of the traction rope is connected with an elastic member for fixing the waist of a human body.

In some embodiments of the utility model, a collapsible stairway is included for connecting the hoistway pit and the hoistway door, the stairway being hingedly connected to the rail loop.

In some embodiments of the utility model, the foldable stair comprises a bracket rod and a pedal which are connected, two bracket rods are respectively arranged on two sides of the pedal, and a connecting rotating shaft is arranged at the joint of the bracket rods and the pedal.

In some embodiments of the utility model, the elevator maintenance protection device further comprises a universal wheel, a connecting rod and a supporting rod, wherein one end of the connecting rod is hinged to the lower end of the upright post, the other end of the connecting rod is fixedly connected with the universal wheel, one end of the supporting rod is hinged to the connecting rod, the other end of the supporting rod is provided with a hook, the upright post is provided with a plurality of blind holes, and the hook is hooked in the blind holes.

The embodiment of the utility model at least has the following advantages or beneficial effects:

the utility model provides an elevator maintenance protection device which comprises a frame and a bearing plate. The cross rods are mutually connected to form a cross rod ring frame, and the upright posts for supporting are connected with the cross rod ring frame through screw thread pairs to form a frame. The stand is electric telescopic handle, just realizes the extension and the shrink of stand behind the start button, and the adjustability of its height can satisfy operating personnel's demand well, easy operation, and the live time is short, and is efficient. When not used, the device is recovered to the original state, and the occupied space is small. The loading board is installed at the top of horizontal pole ring frame, and the setting of loading board can intercept the high altitude object that weighs down suddenly, avoids the human body to cause great injury because of its falls to the human body. The setting of buffer layer can slow down the huge impact force that the elevator car tenesmus brought, improves the shock resistance of loading board, and further strengthening avoids the casualty occurence of failure to elevator maintenance operating personnel's guard action. Whole device forms through each part concatenation, can be swiftly, simple and convenient during the use assemble it, can dismantle it when not needing and accomodate, and occupation space is less, convenient transportation and accomodate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an elevator maintenance protection device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a single-layer board according to an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of the electric telescopic handle according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a hoisting device according to an embodiment of the utility model.

Icon: 100-elevator maintenance protection devices; 112-an outer sleeve; 113-a carrier plate; 114-an inner sleeve; 115-a connecting rod; 116-a support bar; 120-a buffer layer; 121-a load-bearing column; 117-infrared rangefinder; 118-a buzzer; 130-a hoisting device; 131-a first pulley; 132-a second pulley; 133-a limiting groove; 134-a resilient member; 140-stairs; 141-connecting the rotating shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. are used for indicating the orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships which are usually arranged when the products of the present invention are used, the terms are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements which are indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1, fig. 1 is a schematic structural view of an elevator maintenance protection device 100.

The utility model provides an elevator maintenance protection device 100, its includes frame and loading board 113, and the frame is including the horizontal pole ring frame of connecting each other and the stand that is used for supporting, and the stand is electric telescopic handle, and loading board 113 is installed in the top of horizontal pole ring frame, and loading board 113 is connected with buffer layer 120. In this embodiment, the four cross bars are mutually connected through bolts to form a cross bar ring frame, and the upright posts for supporting are connected with the cross bar ring frame through thread pairs to form a frame. Alternatively, the connection between the crossbars may be a rivet connection or a welded connection. The stand is electric telescopic handle, just can realize the extension and the shrink of stand after starting electric button, and the adjustability of its height can satisfy different operating personnel's demand. For example, to the crowd of different heights, the accessible electric telescopic handle is adjusted for elevator maintenance protection device 100's space can adapt to human height and promote the travelling comfort. Or when the operator needs to check the circuit operation condition at the high position and stands on a higher object such as a stool, the upright post can be correspondingly heightened without going to the upright post for manual adjustment by starting the lifting button in situ, so that the working efficiency is improved, the probability of accidents when the operator gets off from the high position is reduced, and the safety of the operator is guaranteed. The electric telescopic rod enables the lifting operation of the elevator maintenance protection device 100 to be more convenient and simpler, the time for using the electric telescopic rod is short, and the efficiency is high. When not used, the device is recovered to the original state, and the occupied space is small. The bearing plate 113 is arranged at the top of the cross rod ring frame, and the bearing plate 113 can intercept an emergent falling high-altitude object, so that the human body is prevented from being seriously injured due to falling. In order to alleviate the huge impact force caused by the sudden falling of the car after the breakage of the elevator rope and further ensure the safety of elevator maintenance personnel, the top anchor of the bearing plate 113 is connected with a buffer layer 120. The setting of buffer layer 120 has certain interception effect to the elevator car of whereabouts, thereby turns into internal energy consumption energy with its kinetic energy, reduces the impact force of elevator car to loading board 113, combines loading board 113 to use jointly to strengthen the guard action to elevator maintenance operating personnel, avoids the casualty occurence of failure. Optionally, the buffer layer 120 may be an impact-resistant rubber plate, or may be an inflatable cushion, which is not limited in particular. Whole device forms through each part concatenation, can be swiftly, simple and convenient during the use assemble it, can dismantle it when not needing and accomodate, and occupation space is less, makes things convenient for transportation on the road and accomodates.

Referring to fig. 2, fig. 2 is a partially enlarged schematic view of a single-layer board. Further, the buffer layer 120 is composed of a plurality of unit layers, and the unit layers are provided with the load-bearing columns 121. In the present embodiment, the buffer layer 120 is a carbon fiber reinforced composite laminate. The carbon fiber and the composite material thereof have high specific strength and high specific modulus, and have remarkable advantages in fatigue resistance, shock resistance, vibration reduction performance, high and low temperature resistance, corrosion resistance and the like. The carbon fiber is soft and can be processed into various sheets to form a single-layer plate, and the single plates are pressed into a laminated plate by a hot-press forming process after resin is added among the single plates. For example, when the single-layer board is a three-dimensional spaced woven fabric, a certain space is provided between the upper layer and the lower layer of the woven fabric, the upper layer and the lower layer are connected by the bearing column 121 in the shape of an "8" to form an integral single-layer board, and the stacked gaps of the single-layer board are filled with resin and pressed into a laminated board. When the impact force of the car impacts the upper panel, the stress wave quickly diffuses outwards along the transverse direction and the longitudinal direction of the woven fabric, under the action of the stress wave, the laminated panel absorbs energy through deformation bending, resin cracking, fiber breakage and other forms to slow down the impact force of the car, and the 8-shaped bearing column 121 has quicker and sufficient reaction capacity and can disperse, absorb and transmit more impact energy through bending deformation, so that the impact stress at the impact position of the laminated panel is reduced, the bearing plate 113 is prevented from being broken under strong impact force to cause casualties, and the safety of human bodies is guaranteed. Optionally, the bearing columns 121 in the unit layers are distributed in a honeycomb shape, and the protective plate formed by the unit layers is plastically deformed under the action of external impact, so that energy is converted into structural energy, and impact load is effectively absorbed and buffered to reduce the impact force of the car on the bearing plate 113.

Referring to fig. 3, fig. 3 is a partial sectional view of the electric telescopic rod. In detail, in the embodiment, the electric telescopic rod includes an outer sleeve 112 and an inner sleeve 114 which are sleeved with each other, a thread groove is formed in the outer sleeve 112, and an external thread matching with the thread groove is formed in the inner sleeve 114. The output shaft of the micro motor is fixedly connected with the inner sleeve 114 and is arranged on the upright post, the micro motor is connected with a positive and negative rotation control circuit, the positive and negative rotation control circuit is connected with a power supply, the positive and negative rotation control circuit is connected with a positive rotation switch and a negative rotation switch, and the positive rotation switch and the negative rotation switch are arranged on the upright post. When the forward rotation switch is pressed down, the motor rotates forward, the motor drives the inner sleeve 114 to rotate forward, and the external threads on the inner sleeve 114 are matched with the thread grooves in the outer sleeve 112 to drive the outer sleeve 112 to extend outwards; pressing the forward switch again cuts off the power supply outer sleeve 112 to stop extending outwards, and self-locking can be realized due to the large friction angle between the external thread and the thread groove, so that the outer sleeve 112 is prevented from retracting. When the reverse switch is pressed, the motor drives the inner sleeve 114 to rotate in the reverse direction, and the outer sleeve 112 retracts inwardly under the action of friction between the external threads and the thread grooves. The transmission is steady, and work efficiency is higher, simple structure and with low costs.

Further, in order to give the maintenance personnel a long reaction time in the face of danger, sufficient time is allowed for transfer to the safety zone. The elevator maintenance protection device 100 further comprises an infrared distance meter 117, a controller (not shown in the figure) and a buzzer 118 which are communicated with the mains supply circuit, the controller is electrically connected with the infrared distance meter and the buzzer 118 respectively, and the buzzer 118 and the infrared distance meter 117 are installed on one side, close to the elevator car, of the bearing plate 113 through anchor nails. The power is turned on, and infrared distance measuring instrument detects the distance between elevator car and the infrared distance measuring instrument, and when elevator car falls downwards, the change that infrared distance measuring instrument detected the distance, gives the controller with signal transmission, triggers bee calling organ 118 through the controller, makes it produce buzzing, plays the effect of reporting to the police to the maintenance personal in the elevator well hole, in time reminds maintenance personal to keep away from the danger area, prevents to cause unexpected injury.

Referring to fig. 4, fig. 4 is a schematic structural diagram of the lifting device 130. In order to allow maintenance personnel to quickly evacuate the elevator shaft pit, in the present embodiment the loading floor 113 is provided with a hoisting means 130 at a side remote from the elevator car, the hoisting means 130 comprising a motor, a traction rope, a rope drum (not shown) for winding the traction rope, a first pulley 131 and a second pulley 132. The side wall board of the bearing plate 113 is connected with a sliding groove in a threaded manner, a limiting groove 133 is arranged between the front side wall and the rear side wall of the sliding groove, the shaft lever of the slidable pulley is movably installed in the limiting groove 133, and the second pulley 132 can move left and right along the extension direction of the limiting groove 133 under the action of the traction rope. The shaft of the first pulley 131 is fixedly installed between the front and rear side walls of the chute and is close to one side of the hall door. One end of the traction rope passes through the second pulley 132 and the first pulley 131 to be fixedly connected with the rope reel, the rope reel is fixedly connected with the output shaft of the motor, and the other end of the traction rope is connected with an elastic part 134 for fixing the waist of a human body. In this embodiment, the elastic member 134 is a spandex elastic band, when the buzzer 118 buzzes or needs to fall from the hall door to the pit, the spandex elastic band is fixed at the waist of the human body, the output shaft of the power-on motor drives the rope reel to rotate so as to drive the traction rope to wind or unwind on the rope reel, and under the cooperation of the second pulley 132 and the movable pulley, the elastic member pulls out the maintenance personnel upwards or puts the maintenance personnel into the pit downwards, so that the speed is high, and the efficiency is high.

Further, in this embodiment, the elevator maintenance protecting apparatus 100 further includes a foldable stairway 140 for connecting the elevator pit and the hoistway door, the stairway 140 is hinged to the cross bar ring of the car frame through a damping hinge, and when a maintenance worker needs to enter the pit, the maintenance worker pulls the stairway open, so that a stable triangle can be formed among the vertical column, the ground and the stairway 140, thereby facilitating the maintenance worker to enter and exit the pit, and when facing a danger, the maintenance worker can escape from the stairway into the pit. A hook (not shown) is arranged on the cross bar ring frame, and the stair 140 is retracted and fixed on the cross bar ring frame by the hook after the stair leaves the pit. Further, the stair 140 in this embodiment includes two pedals, two support rods are respectively disposed on two sides of each pedal, and a connection rotating shaft 141 is disposed at a joint of the support rods and the pedals. The connecting rotating shaft 141 and the support rods between two adjacent pedals on the same side form a parallelogram, so that the pedals are always parallel to the ground in the opening or closing process of the stair 140, and the two support rods connected with the two sides of each pedal enable the pedals to be stably installed between the support rods on the two sides without rotating for 360 degrees, thereby preventing accidents caused by stepping empty.

When the elevator maintenance protection device 100 is moved, in order to save labor and facilitate the operation, the elevator maintenance protection device 100 further comprises a universal wheel, a connecting rod 115 and a supporting rod 116, one end of the connecting rod 115 is hinged to the lower end of the upright post, the other end of the connecting rod 115 is fixedly connected with the universal wheel, one end of the supporting rod 116 is hinged to the connecting rod 115, the other end of the supporting rod 116 is provided with a hook (not shown in the figure), the upright post is provided with a plurality of blind holes (not shown in the figure), and the hook is hooked in the blind holes. When the hinged position of the connecting rod 115 and the upright column is taken as a boundary line and the elevator maintenance protection device 100 needs to be moved, the supporting rod 116 is hooked in the blind hole below the boundary line, a stable triangle is formed among the upright column, the connecting rod 115 and the supporting rod 116, and the elevator maintenance protection device 100 can be moved by the contact of the universal wheels and the ground. When the elevator maintenance protection device 100 does not need to be moved, the supporting rod 116 is hooked at a point above the boundary line, and the universal wheels leave the ground, so that the universal wheels can be prevented from automatically sliding under the action of external force, and a human body is separated from a protection area to cause certain potential danger.

The working principle of the elevator maintenance protection device 100 is as follows:

the utility model provides an elevator maintenance protection device 100 which comprises a frame and a bearing plate 113, wherein the frame comprises a cross rod ring frame and a stand column for supporting which are connected with each other, the stand column is an electric telescopic rod, and the bearing plate 113 is arranged at the top of the cross rod ring frame. The electric telescopic rod comprises an outer sleeve 112 and an inner sleeve 114 which are sleeved with each other, a thread groove is formed in the outer sleeve 112, and an external thread matched with the thread groove is formed in the inner sleeve 114. This elevator maintenance protection device 100 can rise effectively fast to the required protection height of maintenance personal, and can prevent that the object that falls from the high altitude from smashing the maintenance personal, ensures its life safety. The buffer layer 120 arranged at the top of the bearing plate 113 can prevent huge impact force from being caused to the bearing plate 113 when the elevator traction rope is broken, and has a certain buffering effect. The elevator maintenance protection device 100 further comprises an infrared distance meter 117, a controller and a buzzer 118, wherein the controller is electrically connected with the infrared distance meter and the buzzer 118 respectively, and the buzzer 118 and the infrared distance meter 117 are installed on one side, close to the elevator car, of the bearing plate 113. When the car falls, the signal that the distance measured by the infrared distance measuring instrument 117 changes is transmitted to the controller, so that the buzzer 118 is triggered to sound, and maintenance personnel are reminded to leave the pit in time to guarantee the safety of the car. One side that elevator car was kept away from to loading board 113 is equipped with hoisting accessory 130, hoisting accessory 130 includes the motor, the haulage rope, a rope reel for convoluteing the haulage rope, first pulley 131 and second pulley 132, be equipped with the spout on the loading board 113, first pulley 131 and second pulley 132 are installed in the spout, first pulley 131 and second pulley 132 are passed to the one end of haulage rope and the rope reel is fixed continuous, the rope reel links to each other with the motor, the other end of haulage rope is connected with the elastic component 134 that is used for fixed human waist, tie up elastic component 134 on maintenance personal's waist when taking place danger, the motor rotates and can leave the pit fast after connecting power. The elevator maintenance protection device 100 also includes a collapsible ladder 140 for connecting the elevator pit and the hoistway doors, the ladder 140 being hinged to the rail loop. The stairs 140 comprise two bracket rods and a pedal which are connected, the two sides of the pedal are respectively provided with the two bracket rods, and the connecting part of the bracket rods and the pedal is provided with a connecting rotating shaft 141, so that maintenance personnel can conveniently go in and out of a well pit and can also be used as an escape ladder. In order to move conveniently, the elevator maintenance protection device 100 further comprises a universal wheel and a support rod 116, the universal wheel comprises a wheel and a connecting rod 115 which are connected with each other, the connecting rod 115 is hinged to the lower end of the upright, one end of the support rod 116 is hinged to the connecting rod 115, a plurality of blind holes are formed in the upright, and the other end of the support rod 116 is hooked in the blind holes.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The elevator maintenance protection device is characterized by comprising a frame and a bearing plate, wherein the frame comprises a cross rod ring frame and a stand column, the cross rod ring frame is connected with the stand column, the stand column is used for supporting the stand column, the stand column is an electric telescopic rod, the bearing plate is arranged at the top of the cross rod ring frame, and the bearing plate is connected with a buffer layer.

2. The elevator service protection device of claim 1, wherein said cushioning layer is comprised of a plurality of cell layers, said cell layers having load bearing columns disposed therein.

3. The elevator maintenance protection device of claim 1, wherein said electric telescopic rod comprises an outer sleeve and an inner sleeve sleeved with each other, said outer sleeve having a thread groove therein, said inner sleeve having an external thread matching said thread groove.

4. The elevator maintenance protection device of claim 1, further comprising an infrared distance meter, a controller and a buzzer, wherein the controller is connected with the infrared distance meter and the buzzer respectively, and the buzzer and the infrared distance meter are installed on one side of the bearing plate close to the elevator car.

5. The elevator maintenance protection device according to claim 1, wherein a lifting device is arranged on one side of the bearing plate away from the elevator car, the lifting device comprises a motor, a traction rope, a rope reel for winding the traction rope, a first pulley and a second pulley, a sliding groove is formed in the bearing plate, the first pulley and the second pulley are installed in the sliding groove, one end of the traction rope penetrates through the first pulley and the second pulley and is fixedly connected with the rope reel, the rope reel is connected with the motor, and the other end of the traction rope is connected with an elastic piece for fixing the waist of a human body.

6. The elevator service protection device of claim 1, further comprising a collapsible stairway for connecting an elevator pit and a hoistway door, the stairway being hingedly connected to the rail loop stock.

7. The elevator maintenance protection device of claim 6, wherein the foldable stairway comprises a support rod and a pedal which are connected, two support rods are arranged on two sides of the pedal respectively, and a connecting rotating shaft is arranged at the joint of the support rods and the pedal.

8. The elevator maintenance protection device according to claim 1, further comprising a universal wheel, a connecting rod and a supporting rod, wherein one end of the connecting rod is hinged to the lower end of the upright, the other end of the connecting rod is fixedly connected with the universal wheel, one end of the supporting rod is hinged to the connecting rod, the other end of the supporting rod is provided with a hook, the upright is provided with a plurality of blind holes, and the hook is hooked in the blind holes.