Elevator car

Abstract

The utility model discloses an elevator car which comprises a car body, electromagnetic assemblies are arranged on the two sides of the car body, continuous copper walls are arranged in a hoistway, in iron cores of the electromagnetic assemblies, supporting rods of a buffering device are in sliding fit with the electromagnetic assemblies, and when the car body stalls and falls, the iron cores and a steel structure of the car body generate magnetic interaction. When the buffer device touches the well bottom, the supporting rod compresses the medium in the iron core, after the set value is reached, the medium is released through the connecting hole in the iron core, the car of the steel structure is activated and magnetized through the electromagnetic assembly, induction current is generated through interaction between the car and the copper wall, resistance is formed, and falling is slowed down. The copper wall in the high-rise building provides extra speed reduction, the buffer device on the electromagnetic assembly is matched with the whole system, the supporting rod is embedded into an iron core medium, and when the supporting rod impacts the shaft bottom, the medium is pressed to be released and discharged through the connecting hole, and the buffer system cooperates to conduct multi-stage and multi-layer buffering on the lift car, and impact is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator car. Background Art

[0002] The elevator car is the core part of the elevator. It is the space inside the elevator for carrying passengers or goods. The car is usually composed of a steel structure, interior panels, a floor, a ceiling, lighting, ventilation equipment, a control panel, etc. It is connected to the driving device of the elevator through steel ropes or racks and moves up and down in the elevator shaft according to instructions. The final-stage buffer protection of the elevator car usually refers to the buffer system at the bottom of the elevator, which is an important part of the elevator safety design and is used to provide protection when the elevator car descends at high speed due to a fault or other reasons and exceeds the normal terminal position. However, the buffer system highly considers the drop of the car. If the car falls from a very high height, even if the buffer system has a buffering effect on the human body, the reaction force is relatively large and the buffering effect is not continuous, inevitably causing injury to passengers. Content of the Utility Model

[0003] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the description of this application, to avoid obscuring the purpose of this part, the abstract of the description, and the title of the utility model. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0004] To solve the above-mentioned problems, the utility model provides the following technical solution: An elevator car includes a car body, characterized in that: electromagnetic components are arranged on both sides of the car body, and a continuous copper wall is arranged in the shaft. In the iron core of the electromagnetic component, a support rod of the buffer device is slidably matched with it. When the car body stalls and falls, a magnetic interaction is generated between the iron core and the steel structure of the car body, so that the magnetic car body decelerates through the copper wall. When the buffer device touches the bottom of the well, the support rod compresses the medium in the iron core, and after reaching a set value, the connection hole on the iron core will release the medium.

[0005] Based on the above technical solution, the utility model can also be improved as follows.

[0006] As a preferred scheme of the elevator car of the utility model, wherein: the electromagnetic component further includes a DC power supply and a copper coil. The DC power supply is arranged on the car body, and the car body is electrically connected to the copper coil through a wire. The copper coil is wound on the outer surface of the iron core.

[0007] As a preferred scheme of the elevator car of the utility model, wherein: an avoidance groove is opened at the contact position between the iron core and the car body for winding the copper coil.

[0008] As a preferred embodiment of the elevator car of the present utility model, the cavity inside the iron core is used to store the medium. A clamping groove is formed at the top of the iron core, and a sealing plug is provided in the clamping groove in a sealed manner. The clamping groove is communicated with the cavity through a connecting hole.

[0009] As a preferred embodiment of the elevator car of the present utility model, one end of a support rod is sleeved in the cavity through a piston, and the piston is arranged on the support rod.

[0010] As a preferred embodiment of the elevator car of the present utility model, the support rod is connected to the supporting part of the supporting foot. When the contact part of the supporting foot touches the bottom of the well, the piston squeezes the cavity, the sealing plug disengages from the clamping groove, allowing the medium to be discharged through the connecting hole, and the elastic part of the supporting foot is stressed excessively and bends until it breaks.

[0011] The beneficial effects of the present utility model are as follows: activated by the electromagnetic component, the steel structure car body is magnetized, interacts with the copper wall to generate induced current, forms resistance to slow down the fall, the copper wall in high-rise buildings provides additional deceleration, the buffer device on the electromagnetic component cooperates with the overall system, the support rod is embedded in the iron core medium, when hitting the bottom of the well, the medium is compressed and released, discharged through the connecting hole, and cooperates with the buffer system to provide the final buffer for the car body to reduce the impact. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0013] Figure 1 It is a three-dimensional view of the whole of this embodiment.

[0014] Figure 2 It is a three-dimensional view of the buffer component of this embodiment.

[0015] Figure 3 For this embodiment Figure 1 is a partial schematic view.

[0016] Figure 4 It is a partial schematic view of the iron core of this embodiment.

[0017] Figure 5 It is a schematic diagram of the operating principle of the buffer component of this embodiment.

[0018] Figure 6 It is a three-dimensional view of the car body and the copper wall of this embodiment.

[0019] In the figure: car body 300, copper wall 400;

[0020] Electromagnetic component 100, DC power supply 101, copper coil 102, iron core 103, cavity 103a, card slot 103b, connection hole 103c, avoidance groove 104, sealing plug 105;

[0021] Buffer assembly 200, support rod 201, piston 201a;

[0022] Support feet 202, support part 202a, elastic part 202b, contact part 202c. Specific embodiments

[0023] To make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings of the specification.

[0024] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0026] Embodiment

[0027] Referring to Figures 1 to 6 , which is an embodiment of the present utility model. This embodiment provides an elevator car, including a car body 300. Electromagnetic components 100 are provided on both sides of the car body 300. A continuous copper wall 400 is provided in the hoistway. Inside the iron core 103 of the electromagnetic component 100, the support rod 201 of the buffer device 200 is slidably engaged with it. When the car body 300 stalls and falls, a magnetic interaction is generated between the iron core 103 and the steel structure of the car body, so that the magnetic car body decelerates through the copper wall 400. When the buffer device 200 touches the bottom of the well, the support rod 201 compresses the medium inside the iron core 103. After reaching the set value, the connection hole 103c on the iron core 103 will release the medium;

[0028] Specifically, when the electromagnetic component 100 is activated, it magnetizes the car body 300 mainly composed of steel structure to form a temporary magnet. When the magnetized car passes through the copper wall 400, according to the principle of electromagnetic induction, a changing magnetic field will be generated in the copper wall, and then induced current will be generated. The magnetic field generated by these induced currents interacts with the magnetic field of the magnetized car to generate resistance, thereby slowing down the falling speed of the car. Especially in high-rise buildings, the continuously arranged copper walls 400 in the elevator shaft can provide additional deceleration protection. In addition, the buffer device 200 integrated on the electromagnetic component 100 works together with the overall buffer system to provide final shock absorption for the car. The support rod 201 of the buffer device 200 is embedded in the medium of the iron core 103. When the car hits the bottom of the well, the support rod will squeeze the medium in the iron core, causing the medium to be compressed and heated. When the pressure reaches a certain level, the connection hole 103c at the top of the iron core will release the medium. This process works together with the buffer system to provide the last effective buffer for the car to reduce the impact;

[0029] It is worth mentioning that when the electromagnetic component of the elevator is activated, it turns the car mainly composed of steel structure into a magnetic object. When this magnetized car passes through a series of copper walls, using the principle of electromagnetic induction, a changing magnetic field is generated, which in turn induces current in the copper walls. The magnetic field formed by these currents interacts with the magnetic field of the car itself to generate a reaction force, effectively slowing down its descending speed. Especially in the elevator shafts of high-rise buildings, it is very practical. At the same time, the elevator is also equipped with a buffer device integrated on the electromagnetic component, which works together with an independent buffer system to provide a linear and smooth buffering effect. The support rod penetrates deep into the iron core filled with medium. Once the car falls, it will compress the medium in the iron core. The medium is compressed and heated and stores energy. When the pressure reaches a certain level, the opening at the top of the iron core will eject the medium. This process works together with the buffer system to provide the final stage of buffering for the car in a linear and powerful manner, greatly improving the safety performance;

[0030] Exemplarily, as Figures 1-6 shown, the electromagnetic component 100 further includes a DC power supply 101 and a copper coil 102. The DC power supply 101 is arranged on the car body 300. The car body 300 is electrically connected to the copper coil 102 through a wire. The copper coil 102 is wound around the outer surface of the iron core 103. An avoidance groove 104 is provided at the contact between the iron core 103 and the car body 300 for winding the copper coil 102. The cavity 103a inside the iron core 103 is used to store the medium. A card slot 103b is provided at the top of the iron core 103. The card slot 103b is sealed with a sealing plug 105. The card slot 103b is connected to the cavity 103a through a connection hole 103c. One end of the support rod 201 is sleeved in the cavity 103a through a piston 201a. The piston 201a is arranged on the support rod 201;

[0031] As shown in Figure 5 the figure; the generation principle of its electromagnetic component 100 can be as follows:

[0032] The solution to form an electromagnet with a copper wire and an iron core and generate electromagnetic induction when the elevator stalls is as follows:

[0033] Speed sensor: Installed in the elevator car to detect the speed of the car. When the car stalls, the speed sensor will detect the speed change and trigger the circuit;

[0034] Delay switch: Connected to the speed sensor. When the speed sensor detects a stall signal, the delay switch conducts the circuit and delays to ensure long-term electrical conduction of the circuit;

[0035] Power supply: Provides stable power supply for the entire circuit. The power supply should use direct current;

[0036] Copper wire and iron core: The copper wire is wound around the iron core to form an electromagnet. When the speed sensor detects a stall signal and passes through the delay switch, the power supply supplies power through the copper wire and the iron core, causing the electromagnet to generate a magnetic field.

[0037] Copper wall of the elevator shaft: A copper wall is set in the elevator shaft. When the electromagnet in the car generates a magnetic field, the conductors (such as the steel bars or metal structures of the elevator shaft) in the copper wall will cut the magnetic induction lines in the magnetic field, thereby generating induced electromotive force and current;

[0038] Through the above settings, when the elevator car stalls, the speed sensor detects the speed change and activates the electromagnet through the delay switch, causing it to generate a magnetic field and generate electromagnetic induction through the copper wall of the elevator shaft, thereby realizing the safety protection function;

[0039] As shown in Figure 2 the figure, the support rod 201 is connected to the support part 202a of the support foot 202. When the contact part 202c of the support foot 202 touches the bottom of the well, the piston 201a squeezes the cavity 103a, and the sealing plug 105 disengages from the card slot 103b, allowing the medium to be discharged through the connection hole 103c, and the elastic part 202b of the support foot 202 is overstressed and bent until it breaks. By finally contacting the bottom of the well with the support foot 202, the process of the support foot 202 deforming to breaking provides the final buffer for the car;

[0040] It is worth mentioning that the strut 201 is connected to the supporting part 202a of the supporting foot 202, forming a mechanical buffer structure. When the elevator car descends and the contact part 202c of the supporting foot 202 touches the bottom of the well, this structure starts to function. The piston 201a is pressured, squeezing the medium in the cavity 103a, causing the sealing plug 105 to be disengaged from the card slot 103b, so that the medium is discharged through the connecting hole 103c. This process is similar to an emergency release mechanism. The rapid discharge of the medium can provide a fast and powerful buffer. At the same time, the elastic part 202b of the supporting foot 202 will bend or even break after being subjected to excessive pressure. By selecting a suitable material for the supporting foot 202, the plastic deformation and ultimate fracture of this material absorb a large amount of kinetic energy, further slowing down the descending speed of the car and providing a linear buffer in the final stage for the car. Through the deformation of the supporting foot and the discharge of the medium, multi-stage and multi-level buffering is achieved, ensuring the safe landing of the elevator car in extreme cases.

[0041] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0042] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (that is, those features that are not relevant to the currently considered best mode of implementing the present utility model or those features that are not relevant to the implementation of the present utility model).

[0043] It should be understood that, during the development of any actual implementation, such as in any engineering or design project, numerous specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be routine work in design, manufacturing, and production.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An elevator car, comprising a car body (300), characterized in that: On both sides of the car body (300), there are electromagnetic components (100). A continuous copper wall (400) is provided in the hoistway. Inside the iron core (103) of the electromagnetic component (100), the support rod (201) of the buffer device (200) is slidably engaged therewith. When the car body (300) stalls and falls, the iron core (103) and the steel structure of the car body produce a magnetic interaction, so that the magnetic car body decelerates through the copper wall (400). When the buffer device (200) touches the bottom of the well, the support rod (201) compresses the medium inside the iron core (103). After reaching the set value, the connection hole (103c) on the iron core (103) will release the medium.

2. The elevator car according to claim 1, characterized in that: The electromagnetic component (100) further includes a DC power supply (101) and a copper coil (102). The DC power supply (101) is arranged on the car body (300). The car body (300) is electrically connected to the copper coil (102) through a wire. The copper coil (102) is wound around the outer surface of the iron core (103).

3. The elevator car according to claim 2, wherein: An avoidance groove (104) is provided at the contact between the iron core (103) and the car body (300) for winding the copper coil (102).

4. The elevator car according to claim 2, wherein: The cavity (103a) inside the iron core (103) is used to store the medium. A clamping groove (103b) is provided at the top of the iron core (103). The clamping groove (103b) is hermetically provided with a sealing plug (105). The clamping groove (103b) is connected to the cavity (103a) through a connection hole (103c).

5. The elevator car according to claim 4, characterized in that: Inside the cavity (103a), one end of the support rod (201) is sleeved with a piston (201a). The piston (201a) is arranged on the support rod (201).

6. The elevator car according to claim 4, characterized in that: The support rod (201) is connected to the support part (202a) of the support foot (202). When the contact part (202c) of the support foot (202) touches the bottom of the well, the piston (201a) squeezes the cavity (103a), and the sealing plug (105) disengages from the clamping groove (103b), allowing the medium to be discharged through the connection hole (103c), and the elastic part (202b) of the support foot (202) is stressed excessively and bends until it breaks.

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