CN211056448U - Overload detection device of indoor elevator - Google Patents
Overload detection device of indoor elevator Download PDFInfo
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- CN211056448U CN211056448U CN201921185941.1U CN201921185941U CN211056448U CN 211056448 U CN211056448 U CN 211056448U CN 201921185941 U CN201921185941 U CN 201921185941U CN 211056448 U CN211056448 U CN 211056448U
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Abstract
The utility model relates to an indoor elevator's overload detection device, including the car, car and motor link to each other, the pivot and the reel of motor link to each other, the reel surface is equipped with two ropes, the bottom of two ropes links to each other with the reel respectively, the top of two ropes is walked around reel and two fixed pulley after-fixing respectively and is put in the top of car position, two fixed pulley settings are put at car top both sides, vertical section between the top of rope and the fixed pulley sets up along car movement track in order to bear the car, the motor drive reel rotates, with the rope of tightening up or releasing the reel surface, make the car go upward or down. The utility model discloses set up the reel biasing between two fixed pulleys, make two ropes the deflection under load condition different, the difference of two rope deflections has the rated load, and this rated load is corresponding with the maximum rated load of car, and whether the difference through detecting two rope deflections surpasss the rated load, judges whether the car overloads, need not set up complicated electrical detection system.
Description
Technical Field
The utility model relates to an indoor elevator's overload detection device.
Background
With the continuous improvement of economic level and the continuous promotion of urbanization and urbanization, the residential form of people develops towards the trend of high-rise buildings and villas. In the construction process of high-rise buildings, elevator shafts can be designed independently, most of the elevators adopt traction type elevators, the elevator shafts have relatively perfect and independent control and operation systems, and the development and application of related technologies are relatively mature; and in this kind of low-rise building of villa, the floor height of villa is generally designed into two-layer or three-layer, can not design the elevator in most villas, and because the whole equipment structure of traction type elevator is complicated, need be equipped with the well, can occupy very big space, consider the cost problem of occupation space problem and traction type elevator, do not install the elevator in most villas, but, along with the increase of the ageing problem of china's population in recent years, it is very inconvenient that old person lives to go upstairs and downstairs by the stair in the villa, and there is the potential safety hazard, therefore, the demand to small-size home elevator also more and more urgent in the market, the more extensive screw type small-size elevator that is used to prior art home elevator technique, can directly install in the villa, do not need to be equipped with the well, the structure is relatively simple, but screw type elevator structure has the defect: the elevator car needs to run by means of rotation of the screw, namely the screw needs to be vertically installed at the running track position of the elevator car, and high requirements are provided for the verticality of the installation of the screw, because if the verticality of the installation of the screw is not high, the car is easy to run to a high place after being inclined, namely the car runs to an upper position, the center of gravity shifts, and particularly when the load of the car is large, or after long-term use, the screw is easy to bend, so that the car runs unstably, and great potential safety hazards exist; the existing screw type small elevator also has the problems, and the screw type small elevator needs frequent maintenance according to the feedback of a user using the product, so that the failure rate of equipment operation is high.
The utility model discloses the people is according to the defect that prior art exists, indoor elevator structure has been proposed and designed, this kind of indoor elevator utilizes the motor to tighten up or release the rope and realizes going upward and down of car, nevertheless because domestic indoor elevator is different from the traction motor who has the well, consider the limited and equipment cost's of space control, the utility model discloses the people designs and uses two ropes to pull the structure of car, and because the traction mode of rope is different from current elevator, consequently current overload detecting system is also not fit for using in the elevator structure of this scheme, and the structure of considering domestic indoor elevator compares the traction elevator structure simpler, consequently also be necessary nature to overload detection, appear danger after avoiding overloading.
SUMMERY OF THE UTILITY MODEL
The utility model provides an indoor elevator's overload detection device, set up the reel biasing between two fixed pulleys, make the distance between two ropes and the reel different, utilize the asymmetric mode that sets up of two ropes and reel, it is different to make the deflection of two ropes under load condition, the difference of two rope deflections has the rated quantity, this rated quantity is corresponding with the maximum rated load of car, whether the difference through detecting two rope deflections exceeds the rated quantity, judge whether the car overloads, the structure of using is very ingenious reasonable, need not set up complicated electrical detection system, just can be timely accurate the detection elevator be in overload state, the problem that exists among the prior art has been solved.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: overload detection device of indoor elevator includes:
the elevator car is connected with the motor, a rotating shaft of the motor is connected with the winding drum, two ropes are arranged on the surface of the winding drum, the bottom ends of the two ropes are respectively connected with the winding drum, the top ends of the two ropes are fixed at the upper position of the elevator car after bypassing the winding drum and the two fixed pulleys respectively, the two fixed pulleys are arranged at two side positions of the top of the elevator car, a vertical section between the top ends of the ropes and the fixed pulleys is arranged along the movement track of the elevator car to bear the elevator car, and the motor drives the winding drum to rotate so as to tighten or release the ropes on the surface of the winding drum and enable the elevator car to go upwards;
the winding drum is arranged between the two ropes in an offset manner, so that the deformation of the two ropes in a loaded state is different, and the difference of the deformation of the two ropes has a rated amount;
a detection unit adapted to detect a change in the difference in the amount of deformation of the two ropes being greater than the rated amount.
Furthermore, two the fixed pulley links to each other with the support piece, and the vertical section of two ropes is followed the support piece symmetry sets up, between two fixed pulleys the support piece is equipped with the articulated shaft, support piece rotates along the rope one side that articulated axial deflection is big, makes support piece's rotation has rated rotation volume.
Further, the detection unit includes a position detection switch provided in a rotation direction larger than a rated rotation amount of the support member.
Further, the tangent position of the rope and the winding drum close to one side of the winding drum is positioned at the lower part of the winding drum, and the tangent position of the rope and the winding drum far away from one side of the winding drum is positioned at the upper part of the winding drum.
Furthermore, the hinge shaft of the supporting piece is positioned in the middle of the two ropes, the motor is connected with the supporting piece, and the position of the motor changes along with the rotation of the supporting piece.
Further, the position detection switch is disposed in a position change direction of the motor to detect a change in the rotation amount of the motor greater than the rated rotation amount.
Further, also comprises
The actuator is connected with the supporting piece or the motor, the position of the actuator changes along with the rotation of the supporting piece or the motor, and the position of the actuator comprises a first position interval for switching on the position detection switch and a second position interval for switching off the position detection switch.
Furthermore, the supporting piece is arranged between the two fixed beams, the fixed beams are arranged on two sides of the supporting piece along the axial direction of the hinge shaft, the hinge shaft penetrates through the supporting piece and then is connected with the two fixed beams, one end of the motor is connected with the supporting piece, the connecting position of the motor and the supporting piece is close to one side of the rope with small deformation, the actuating piece is arranged at the other end of the motor, the position detection switch is arranged at the position below the actuating piece, and the position detection switch is connected with the fixed beams.
Furthermore, the supporting piece is arranged between the two fixed beams, the fixed beams are arranged on two sides of the supporting piece along the axial direction of the hinge shaft, the hinge shaft penetrates through the supporting piece and then is connected with the two fixed beams, the actuating piece is connected with one side, close to the rope with large deformation, of the supporting piece, and the position detection switch is arranged below the supporting piece.
Furthermore, the supporting piece is arranged between the two fixed beams, the fixed beams are arranged on two sides of the supporting piece along the axial direction of the hinge shaft, the hinge shaft penetrates through the supporting piece and then is connected with the two fixed beams, the actuating piece is connected with one side, close to the rope with small deformation, of the supporting piece, and the position detection switch is arranged above the supporting piece.
The utility model adopts the above structure beneficial effect be, set up the reel biasing between two fixed pulleys, make the distance between two ropes and the reel different, utilize the asymmetric mode that sets up of two ropes and reel, it is different to make the deflection of two ropes under load condition, the difference of two rope deflections has the quota volume, this quota volume is corresponding with the maximum rated load of car, whether the difference through detecting two rope deflections surpasss the quota volume, judge whether the car overloads, the structure of using is very ingenious reasonable, need not set up complicated electrical detection system, just can be timely accurate the detection elevator be in overload state.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic diagram of the side view structure of the present invention.
Fig. 3 is a schematic structural diagram of a first embodiment of the position detection switch according to the present invention.
Fig. 4 is a schematic structural diagram of a position detecting switch according to a second embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a position detecting switch according to a third embodiment of the present invention.
In the figure, 1, a car; 2. a motor; 3. a reel; 4. a rope; 5. a fixed pulley; 6. a support member; 7. Hinging a shaft; 8. a position detection switch; 9. an actuator; 10. and fixing the beam.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1-5, an overload detecting apparatus for an indoor elevator includes a car 1, the car 1 is connected to a motor 2, a rotating shaft of the motor 2 is connected to a winding drum 3, two ropes 4 are disposed on a surface of the winding drum 3, bottom ends of the two ropes 4 are respectively connected to the winding drum 3, top ends of the two ropes 4 are fixed to an upper position of the car 1 after passing around the winding drum 3 and the two fixed pulleys 5, respectively, the two fixed pulleys 5 are disposed at two sides of a top of the car 1, a vertical section between the top ends of the ropes 4 and the fixed pulleys 5 is disposed along a moving track of the car 1 to support the car 1, the motor 2 drives the winding drum 3 to rotate to tighten or release the ropes 4 on the surface of the winding drum 3; the winding drum 3 is arranged between the two ropes 4 in an offset manner, so that the deformation of the two ropes 4 in a load state is different, and the difference of the deformation of the two ropes 4 has a rated amount; and a detection unit is provided which is adapted to detect a change in the difference in the amounts of deformation of the two ropes 4 which is greater than the nominal amount. In the present embodiment, the drum 3 is disposed offset between the two fixed pulleys 5, the distances between the two ropes 4 and the drum 3 are made different, the amounts of deformation of the two ropes 4 in the loaded state are made different by the asymmetric disposition of the two ropes 4 and the drum 3 of the motor 2, and the difference in the amounts of deformation of the two ropes 4 has a rated amount corresponding to the maximum rated load of the car 1, for example: the rated maximum load of the car 1 is designed to be 800KG, and when the load in the car 1 is equal to 800KG, the difference value of the deformation of the two ropes 4 is the rated quantity; when the load in the car 1 exceeds 800KG, the deflection difference of two ropes 4 exceeds the rated quantity, whether the difference through detecting the 4 deflection of two ropes exceeds the rated quantity, judges car 1 and overloads, and the structure of using is very ingenious reasonable, need not set up complicated electric detecting system, and the detection elevator that just can be timely accurate is in overload state.
In the preferred embodiment, two fixed pulleys 5 are connected with a support member 6, and vertical sections of two ropes 4 are symmetrically arranged along the support member 6, the support member 6 between the two fixed pulleys 5 is provided with a hinge shaft 7, and the support member 6 rotates along the hinge shaft 7 to the side of the rope 4 with large deformation, so that the rotation of the support member 6 has a rated rotation amount. In this embodiment, the two fixed pulleys 5 are provided on the support 6, and the support 6 is hinged, the difference in the amount of deformation of the two ropes 4 causes the support 6 to rotate along the hinge shaft 7, the change in the difference in the amount of deformation of the two ropes 4 causes the support 6 to rotate to the rope 4 side having a large amount of deformation by a different angle, the larger the load, the larger the difference in the amount of deformation of the two ropes 4, the larger the angle of rotation of the support 6, when the load reaches the rated maximum load of the car 1, the amount of rotation of the support 6 at this time is the rated amount of rotation, and when the car 1 is overloaded, the difference in the amount of deformation of the two ropes 4 exceeds the rated amount of rotation, and further, the amount of rotation of the.
In a preferred embodiment, the detection unit comprises a position detection switch 8, the position detection switch 8 being arranged in a direction of rotation which is greater than the nominal amount of rotation of the support 6. In order to detect whether the difference between the deformation amounts of the two ropes 4 exceeds the rated amount, the rotation amount of the supporting member 6 exceeds the rated rotation amount, so that the position detection switch 8 is arranged in the rotation direction larger than the rated rotation amount of the supporting member 6 in the embodiment, and when the rotation amount of the supporting member 6 exceeds the rated rotation amount, the position detection switch 8 is triggered to obtain the detection signal.
In the preferred embodiment, the tangent position of the rope 4 to the drum 3 on the side close to the drum 3 is located in the lower part of the drum 3, and the tangent position of the rope 4 to the drum 3 on the side far from the drum 3 is located in the upper part of the drum 3. The rope 4 is wound and connected with the winding drum 3 after passing through the fixed pulley 5, so that the rope 4 is subjected to reverse bending, the reverse bending can reduce the fatigue resistance of the rope 4, and because the winding drum 3 needs to be arranged between the two fixed pulleys 5 in an offset way, the positions of the two ropes 4 from the fixed pulleys 5 to the winding drum 3 are different, the rope 4 close to one side of the winding drum 3 is wound from the lower part of the winding drum 3 to the upper part, and the rope 4 far from one side of the winding drum 3 is wound from the upper part of the winding drum 3 to the lower part in consideration of the potential risk of reverse bending; if the winding directions of the rope 4 and the winding drum 3 are opposite to the arrangement direction, the fatigue resistance of the rope 4 close to one side of the winding drum 3 can be seriously reduced, so that the fatigue resistance of the two ropes 4 is excessively different, the rope 4 close to one side of the winding drum 3 can be broken after long-term use, and great potential safety hazard exists.
In the preferred embodiment, the hinge axis 7 of the support member 6 is located at the middle position of the two ropes 4, the motor 2 is connected to the support member 6, and the position of the motor 2 is changed following the rotation of the support member 6. Considering the stability of the car 1, two fixed pulleys 5 on the supporting piece 6 need to be symmetrically arranged along the top of the car 1, in this case, in order to enable the rotation amount of the supporting piece 6 to more directly and accurately reflect the difference change of the deformation amounts of the two ropes 4, the hinge shaft 7 of the supporting piece 6 is arranged in the middle position of the two ropes 4, the winding drum 3 is equivalently arranged along the hinge shaft 7 in an offset manner, the rotation amount of the supporting piece 6 is more reasonably changed, and the accuracy of detecting the rotation amount of the supporting piece 6 is favorably ensured. It can be understood that, by fixedly arranging the motor 2 on the support member 6, the motor 2 and the winding drum 3 can synchronously rotate along with the support member 6, so as to provide support for different arrangement modes of the subsequent position detection switch 8.
In a preferred embodiment, the position detection switch 8 is provided in the position change direction of the motor 2 to detect a change in the rotation amount of the motor 2 larger than the rated rotation amount. In the embodiment, another arrangement mode of the position detection switch 8 is provided, because the above-mentioned scheme describes that the motor 2 is connected with the support member 6, so that the motor 2 and the support member 6 rotate synchronously, that is, the motor 2 has a rotation amount which changes synchronously with the support member 6, it can be understood that the rotation amount of the motor 2 also has a rated rotation amount, and the position detection switch 8 arranged in the rotation direction of the motor 2 can detect a state that the rotation amount of the motor 2 exceeds the rated rotation amount, and can also detect whether the elevator is in an overload state.
It is understood that the triggering of the position detection switch 8 may be triggered according to the structure of the support member 6 or the motor 2 itself, such as a convex structure on the surface of the support member 6 or the motor 2, but this triggering method may limit the installation condition of the position detection switch 8, and it is necessary to consider the convex position on the surface of the support member 6 or the motor 2 first and then set the position detection switch 8 according to the convex position, and if the convex position is not easily found or is not suitable, the installation of the position detection switch 8 may be hindered, however, this also has the possibility of being able to trigger the position detection switch, and exists as an alternative.
In the preferred embodiment, the device further comprises an actuator 9, the actuator 9 is connected with the support member 6 or the motor 2, the position of the actuator 9 changes along with the rotation of the support member 6 or the motor 2, and the position of the actuator 9 comprises a first position interval for turning on the position detection switch 8 and a second position interval for turning off the position detection switch. In the embodiment, the actuating element 9 is arranged, so that the actuating element 9 is connected with the supporting element 6 or the motor 2, and the connection position can be flexibly adjusted and selected, so that the position detection switch 8 is more convenient to mount and more reasonable to match with the actuating element 9; the actuator 9 will follow the rotation of the support member 6 or the motor 2 to change its position, and because the difference between the deformation amounts of the two ropes 4 has two intervals not exceeding the rated deformation amount and exceeding the rated deformation amount, and correspondingly, the rotation amount of the support member 6 or the motor 2 has two intervals not exceeding the rated rotation amount and exceeding the rated rotation amount, and correspondingly, the position of the actuator 9 on the support member 6 or the motor 2 includes a first position interval for turning on the position detection switch 8 and a second position interval for turning off the position detection switch 8.
In a preferred embodiment, the supporting member 6 is disposed between two fixed beams 10, the fixed beams 10 are disposed on both sides of the supporting member 6 in the axial direction of the hinge shaft 7, the hinge shaft 7 is connected to the two fixed beams 10 after passing through the supporting member 6, one end of the motor 2 is connected to the supporting member 6, the connecting position of the motor 2 and the supporting member 6 is close to the side of the rope 4 with a small deformation amount, the actuating member 9 is disposed at the other end position of the motor 2, the position detecting switch 8 is disposed at a position below the actuating member 9, and the position detecting switch 8 is connected to the fixed beams 10. Considering the specific installation of the supporting member 6, a fixed beam 10 is arranged at the top of the car 1, the supporting member 6 is arranged in the fixed beam 10 in a hinged manner, the connecting position of the actuating member 9 and the motor 2 can be selectively arranged at one side close to the rope 4 with large deformation, and the motor 2 is connected with the supporting member 6 at one side close to the rope 4 with small deformation, so that the actuating member 9 has sufficient rotating space, the position detection switch 8 has sufficient installation space, the change of the difference of the deformation of the two ropes can be accurately expressed, and particularly, the position detection switch 8 can be connected with the fixed beam 10, and the assembly and disassembly are convenient; if the rotating space of the actuating member 9 is not enough and the actual rated load of the car 1 is large, the overload state of the car 1 cannot be expressed when the actuating member 9 rotates to the maximum position. It will be appreciated that in actual installation use, as shown in figure 4, the position detection switch 8 is arranged at the top of the car 1 because the support member 6 is at a limited distance from the top of the car 1, and it may be necessary to increase the relative height of the actuating member 9 using a connecting member to ensure that the change in position of the actuating member 9 has a reasonable first and second position interval.
In a preferred embodiment, as shown in fig. 5, the supporting member 6 is disposed between two fixed beams 10, the fixed beams 10 are disposed on both sides of the supporting member 6 in the axial direction of the hinge shaft 7, the hinge shaft 7 is connected to the two fixed beams 10 after passing through the supporting member 6, the actuator 9 is connected to the supporting member 6 on the side close to the rope 4 having a large deformation amount, and the position detecting switch 8 is disposed below the supporting member 6. In the present embodiment, whether overload is caused or not is determined by detecting whether or not the rotation amount of the stay 6 exceeds the rated rotation amount, and since the stay 6 is rotated in the direction along the hinge shaft 7 toward the rope 4 having a large deformation amount, the actuator 9 can be connected to the side of the stay 6 which is turned downward, it is necessary to provide the position detection switch 8 at a position below the side of the stay 6 which is turned downward, and the actuator 9 can be provided at a position above the stay 6 by a connection member in consideration of a change in the distance between the position detection switch 8 and the actuator 9.
In the preferred embodiment, the supporting member 6 is disposed between two fixed beams 10, the fixed beams 10 are disposed on both sides of the supporting member 6 in the axial direction of the hinge shaft 7, the hinge shaft 7 is connected to the two fixed beams 10 after passing through the supporting member 6, the actuator 9 is connected to the side of the supporting member 6 close to the rope 4 having a small deformation amount, and the position detecting switch 8 is disposed at a position above the supporting member 6. In this embodiment, whether overload is caused is determined by detecting whether the rotation amount of the stay 6 exceeds the rated rotation amount, because the rotation direction of the stay 6 is reversed toward the rope 4 with a large deformation amount along the hinge shaft 7, the actuator 9 can be connected to the side of the stay 6 that is reversed upward, and at this time, the position detection switch 8 needs to be disposed at a position above the stay 6, so that the position detection switch 8 is triggered when the actuator 9 is reversed upward following the stay 6.
When the elevator is in operation, the method for controlling the elevator by using the overload detection device comprises the following steps:
if the difference of the deformation of the two ropes 4 is larger than the rated actual deformation, the rotation of the support member 6 or the motor 2 exceeds the rated rotation, and the actuating member 9 connected with the support member 6 or the motor 2 triggers the position detection switch 8;
the position detection switch 8 is triggered to send a signal to the controller, and the controller receives the signal and judges that the actual deformation of the two ropes 4 exceeds the rated amount, so that the elevator is determined to be in an overload state;
if the elevator is in an overload state, the controller sends a signal to the motor 2 to control the motor 2 to stop and send an overload alarm.
It can be understood that the controller is connected to the motor 2, the position detection switch 8 and the alarm via wires, the controller may be a P L C controller, the position detection switch 8 may be a limit switch or a photoelectric sensor (e.g., a proximity switch), and can be triggered by the actuator 9, and the specific circuit connection of the P L C controller is implemented by the prior art in the field and is not described herein again.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (10)
1. Overload detection device of indoor elevator, its characterized in that includes:
the elevator car is connected with the motor, a rotating shaft of the motor is connected with the winding drum, two ropes are arranged on the surface of the winding drum, the bottom ends of the two ropes are respectively connected with the winding drum, the top ends of the two ropes are fixed at the upper position of the elevator car after bypassing the winding drum and the two fixed pulleys respectively, the two fixed pulleys are arranged at two side positions of the top of the elevator car, a vertical section between the top ends of the ropes and the fixed pulleys is arranged along the movement track of the elevator car to bear the elevator car, and the motor drives the winding drum to rotate so as to tighten or release the ropes on the surface of the winding drum and enable the elevator car to go upwards;
the winding drum is arranged between the two ropes in an offset manner, so that the deformation of the two ropes in a loaded state is different, and the difference of the deformation of the two ropes has a rated amount;
a detection unit adapted to detect a change in the difference in the amount of deformation of the two ropes being greater than the rated amount.
2. The overload detecting apparatus for an indoor elevator according to claim 1, wherein two of the fixed pulleys are connected to a support member, and vertical sections of two ropes are symmetrically disposed along the support member, and the support member between the two fixed pulleys is provided with a hinge shaft, and the support member is rotated along a side of the rope on which a deformation amount in a hinge shaft direction is large, so that the support member is rotated by a rated rotation amount.
3. The overload detecting apparatus of an indoor elevator according to claim 2, wherein the detecting unit includes a position detecting switch disposed in a rotational direction greater than a rated rotational amount of the support member.
4. The overload detecting apparatus of an indoor elevator according to claim 3, wherein a tangent position of the rope and the drum at a side close to the drum is located at a lower portion of the drum, and a tangent position of the rope and the drum at a side far from the drum is located at an upper portion of the drum.
5. The overload detecting apparatus of an indoor elevator according to claim 3 or 4, wherein the hinge shaft of the supporter is located at a middle position of the two ropes, the motor is connected to the supporter, and a position of the motor is changed according to a rotation of the supporter.
6. The overload detecting apparatus of an indoor elevator according to claim 5, wherein the position detecting switch is provided in a position changing direction of the motor to detect a change in the rotation amount of the motor more than the rated rotation amount.
7. The overload detecting apparatus of an indoor elevator according to claim 6, further comprising
The actuator is connected with the supporting piece or the motor, the position of the actuator changes along with the rotation of the supporting piece or the motor, and the position of the actuator comprises a first position interval for switching on the position detection switch and a second position interval for switching off the position detection switch.
8. The overload detecting apparatus of an indoor elevator according to claim 7, wherein the supporter is provided between two fixed beams, the fixed beams are provided at both sides of the supporter in an axial direction of a hinge shaft, the hinge shaft is connected to the two fixed beams after passing through the supporter, one end of the motor is connected to the supporter, a connection position of the motor to the supporter is located near a side of the rope having a small deformation amount, the actuator is provided at the other end of the motor, and the position detecting switch is provided at a lower position of the actuator, the position detecting switch being connected to the fixed beams.
9. The overload detecting apparatus of an indoor elevator according to claim 7, wherein the supporter is provided between two fixed beams, the fixed beams are provided at both sides of the supporter in an axial direction of a hinge shaft, the hinge shaft is connected to the two fixed beams after passing through the supporter, the actuator is connected to the supporter near a side of the rope having a large deformation amount, and the position detecting switch is provided below the supporter.
10. The overload detecting apparatus for an indoor elevator according to claim 7, wherein the supporter is provided between two fixed beams, the fixed beams are provided on both sides of the supporter in an axial direction of a hinge shaft, the hinge shaft is connected to the two fixed beams after passing through the supporter, the actuating member is connected to a side of the supporter adjacent to a rope having a small deformation amount, and the position detecting switch is provided at a position above the supporter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921185941.1U CN211056448U (en) | 2019-07-25 | 2019-07-25 | Overload detection device of indoor elevator |
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| CN201921185941.1U CN211056448U (en) | 2019-07-25 | 2019-07-25 | Overload detection device of indoor elevator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626907A (en) * | 2019-07-25 | 2019-12-31 | 山东奔速电梯股份有限公司 | Overload detection device for indoor elevator and method for controlling elevator by using same |
| CN113636489A (en) * | 2021-08-09 | 2021-11-12 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
| CN114751275A (en) * | 2022-05-20 | 2022-07-15 | 广东日创电梯有限公司 | Elevator initiative rescue device |
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2019
- 2019-07-25 CN CN201921185941.1U patent/CN211056448U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626907A (en) * | 2019-07-25 | 2019-12-31 | 山东奔速电梯股份有限公司 | Overload detection device for indoor elevator and method for controlling elevator by using same |
| CN110626907B (en) * | 2019-07-25 | 2023-07-25 | 山东奔速电梯股份有限公司 | Overload detection device of indoor elevator and method for controlling elevator by using overload detection device |
| CN113636489A (en) * | 2021-08-09 | 2021-11-12 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
| CN113636489B (en) * | 2021-08-09 | 2023-03-10 | 中国建筑第七工程局有限公司 | Prefabricated floor self-adaptation regulation transportation platform |
| CN114751275A (en) * | 2022-05-20 | 2022-07-15 | 广东日创电梯有限公司 | Elevator initiative rescue device |
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