Elevator safety protection device, elevator installation protection system and elevator
By designing an elevator safety protection device including a mounting base, safety pliers, triggers, solenoids, elastic elements and reset driving source, the problems of low reliability and high cost caused by the large number of intermediate transmission components in the elevator safety protection device in the prior art are solved, and high reliability and low cost elevator safety protection are achieved.
Patent Information
- Application Number
- CN202421726643.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-19
AI Technical Summary
Among the existing elevator safety protection devices, there are many intermediate transmission components, which leads to low reliability and high cost of the braking process.
An elevator safety protection device is designed, including a mounting base, safety pliers, triggers, solenoids, elastic elements and reset drive sources. The solenoid loses power when the elevator is overspeeding, and the elastic element drives the trigger to combine the safety clamp with the guide rail to achieve braking. The reset drive source drives the trigger to overcome the elastic element and reconnect with the electromagnet when the electromagnet is separated.
The device has a simple structure, less action transmission during braking, high reliability and low cost, effectively solving the problems of low reliability and high cost in the braking process in the prior art.
Smart Images
Figure CN222922714U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of elevator equipment, and particularly to an elevator safety protection device, an elevator installation protection system and an elevator. Background Art
[0002] The safety gear is a safety protection device for an elevator. Under the control of the speed limiter, when the elevator speed exceeds the limit speed defined by the elevator speed limiter, or in the case of the suspension rope breaking or becoming slack, it is a safety device that urgently stops the car on the guide rail, providing an effective protection for the safe operation of the elevator. In the prior art, the elevator safety protection device of the elevator contains more intermediate transmission components, and multiple transmission components are required for action transmission during triggering, thus reducing the reliability of the braking process and having a high cost. Summary of the Utility Model
[0003] The technical problem to be solved by the present application is to provide an elevator safety protection device, an elevator installation protection system and an elevator in view of the above deficiencies of the prior art.
[0004] An elevator safety protection device includes a mounting seat, a safety gear, a trigger, an electromagnet, an elastic element, and a reset driving source; wherein, the trigger is installed on the mounting seat; the safety gear can be driven by the trigger to engage or disengage with the guide rail;
[0005] The electromagnet is used to attract the trigger to keep the safety gear separated from the elevator guide rail, and can lose power to release the trigger when the elevator is overspeed;
[0006] The elastic element is used to drive the trigger to act to engage the safety gear with the guide rail to achieve braking when the electromagnet loses power and releases the trigger;
[0007] The reset driving source is used to drive the trigger to overcome the elastic element and re-engage with the electromagnet when the electromagnet and the trigger are separated, so that the trigger and the electromagnet are re-attracted together.
[0008] Optionally, the safety gear is arranged on the first side of the mounting seat, and the trigger, the electromagnet, the elastic element, and the reset driving source are arranged on the second side of the mounting seat;
[0009] The elevator safety protection device further includes a connecting shaft, the connecting shaft passes through the mounting seat, its first end is located on the first side of the mounting seat and is connected to the lifting arm of the safety gear; its second end is located on the second side of the mounting seat and is connected to the trigger.
[0010] Optionally, the elastic element and the electromagnet are respectively located on both sides of the connection part between the trigger and the connecting shaft.
[0011] Optionally, the elevator safety protection device further includes a first detector for detecting whether the reset driving source is reset.
[0012] The elevator safety protection device further includes a second detector for detecting the action state of the safety clamp.
[0013] Optionally, the elevator safety protection device further includes a rotating shaft rotatably installed on the mounting seat.
[0014] The rotating shaft is fixedly connected to the lifting arms of multiple safety clamps. There is a connection relationship between the trigger and the rotating shaft, so that the trigger can drive all the safety clamps to act simultaneously through the rotating shaft.
[0015] Optionally, the trigger is rotatably installed on the mounting seat, and the trigger is connected to a swing arm on the rotating shaft through a pull rod.
[0016] Optionally, the swing arm is the lifting arm of one of the safety clamps.
[0017] Optionally, the elastic element and the electromagnet are respectively located on both sides of the connection part between the trigger and the mounting seat.
[0018] On the other hand, the present application also provides an elevator installation protection system, including: the above-mentioned elevator safety protection device and a speed detection device.
[0019] The speed detection device is used to detect the running speed of the elevator car. The electromagnet of the elevator safety protection device can be linked with the speed detection device, so as to lose power and release the trigger when the elevator car is overspeed, and make the safety clamp brake.
[0020] On the other hand, the present application also provides an elevator including the above-mentioned elevator installation protection system.
[0021] In the present application, when the elevator is running normally, the electromagnet attracts the trigger to keep the safety clamp separated from the elevator guide rail. When the elevator is overspeed, the electromagnet loses power and releases the trigger, and the elastic element drives the trigger to act to make the safety clamp combine with the guide rail to achieve braking. The reset driving source is used to drive the trigger to overcome the elastic element and the electromagnet to recombine when the electromagnet and the trigger are separated. The elevator safety protection device provided by the present application has a simple structure, less action transmission during braking, high reliability and low cost. Description of the Drawings
[0022] Figure 1 It is a schematic structural diagram of the elevator safety protection device in the first embodiment of the present application.
[0023] Figure 2 It is another schematic structural diagram of the elevator safety protection device in the first embodiment of the present application.
[0024] Figure 3 It is another schematic structural diagram of the elevator safety protection device in the first embodiment of the present application.
[0025] Figure 4 It is a schematic structural diagram of the elevator safety protection device in the second embodiment of the present application.
[0026] Figure 5 It is another schematic structural diagram of the elevator safety protection device in the second embodiment of the present application.
[0027] Figure 6 It is a schematic block diagram of the elevator installation protection system in the third embodiment of the present application.
[0028] Figure 7 It is a schematic structural diagram of the elevator in the present application.
[0029] Reference numerals:
[0030] Elevator safety protection device 100, mounting base 10, safety tongs 20 (lifting arm 21), trigger 30, electromagnet 40, elastic element 50, reset drive source 60, connecting shaft 70, rotating shaft 80, pull rod 90, first detector 110, second detector 120, speed detection device 200, guide rail 300, car 400. Detailed implementation manners
[0031] The following are specific embodiments of the present application and in combination with the accompanying drawings, the technical solutions of the present application are further described, but the present application is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present application. Therefore, those skilled in the art should clearly understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of known functions and structures are omitted for clarity and conciseness.
[0032] It should be noted that, without conflict, the implementation manners and features in the implementation manners of the present application can be combined with each other.
[0033] The elevator safety protection device provided by the present application is installed on the car and is used to brake when the elevator is overspeed, and can urgently stop the car on the guide rail in an emergency. The elevator safety protection device provided by the present application has a simple structure, less action transmission during braking, high reliability, and low cost.
[0034] Reference Figures 1 - 5 Figures 1 - 5 , the elevator safety protection device 100 includes a mounting base 10, a safety tongs 20, a trigger member 30, an electromagnet 40, an elastic member 50, and a reset driving source 60; wherein, the trigger member 30 is mounted on the mounting base 10; the safety tongs 20 can be driven by the trigger member 30 to engage or disengage with the guide rail; the electromagnet 40 is used to attract and hold the trigger member 30 to keep the safety tongs 20 separated from the elevator guide rail, and can lose power to release the trigger member 30 when the elevator is overspeed; the elastic member 50 is used to drive the trigger member 30 to act to engage the safety tongs 20 with the guide rail to achieve braking when the electromagnet 40 loses power and releases the trigger member 30; the reset driving source 60 is used to drive the trigger member 30 to overcome the elastic member 50 and re-engage with the electromagnet 40 when the electromagnet 40 and the trigger member 30 are separated, so that the trigger member 30 and the electromagnet 40 are re-attracted together.
[0035] Specifically, when the elevator is running normally, the electromagnet 40 attracts and holds the trigger member 30 to keep the safety tongs 20 separated from the elevator guide rail, without affecting the normal movement of the car. When the car of the elevator is overspeed, the speed detection device generates an overspeed signal. In response to the overspeed signal, the electromagnet 40 loses power and releases the trigger member 30, and, under the action of the elastic member 50, the trigger member 30 drives the safety tongs 20 to engage with the guide rail to achieve braking. The above braking process provides braking protection when the elevator car is overspeed.
[0036] When it is necessary to reset the elevator safety protection device 100 from the braking protection, the reset driving source 60 drives the trigger member 30 to overcome the elastic member 50 and re-engage with the electromagnet 40. The electromagnet 40 is powered on and attracts and holds the trigger member 30 to keep the safety tongs 20 separated from the elevator guide rail. At this time, the car of the elevator can run normally. In a specific solution, the reset driving source is an electric cylinder.
[0037] Further, the elevator safety protection device 100 further includes a first detector 110. The first detector 110 is used to detect whether the reset driving source 60 is reset. The first detector 110 can be set as a position switch; after the reset driving source 60 drives the trigger member 30 to reset, the signal of the first detector 110 is used to judge whether the reset driving source 60 is reset. Specifically, the reset driving source is an electric cylinder. After the electric cylinder extends to drive the trigger member and the electromagnet 40 to re-engage, it needs to retract to the initial position to achieve reset. The detection signal of the first detector is used to judge whether the electric cylinder has retracted.
[0038] Further, the elevator safety protection device 100 further includes a second detector 120 for detecting the operating state of the safety clamp 20. The operating state of the safety clamp 20 includes a braking state in which it is engaged with the guide rail and a non-braking state in which it is separated from the guide rail. The second detector 120 can indirectly detect the operating state of the safety clamp 20 by detecting the position of relevant moving parts. In a specific solution, the second detector 120 is used to detect the position of the trigger member 30, and determine the operating state of the safety clamp 20 based on the position of the trigger member 30, thereby indirectly detecting the operating state of the safety clamp 20.
[0039] After the reset drive source 60 drives the trigger member 30 to reset, it is necessary to rely on the detection signal of the first detector 110 to ensure that the reset drive source 60 is in the reset state, and rely on the detection signal of the second detector 120 to ensure that the safety clamp 20 is separated from the elevator guide rail, so as to ensure that the elevator safety protection device 100 is in a normal operating state, so that the elevator can be normally braked during the next overspeed.
[0040] Embodiment 1
[0041] Reference Figures 1 - 3 , the elevator safety protection device 100 includes a mounting seat 10, a safety clamp 20, a trigger member 30, an electromagnet 40, an elastic element 50, and a reset drive source 60; wherein, the trigger member 30 is mounted on the mounting seat 10; the safety clamp 20 can be driven by the trigger member 30 to engage or disengage with the guide rail; the electromagnet 40 is used to attract the trigger member 30 to keep the safety clamp 20 separated from the elevator guide rail, and can lose power to release the trigger member 30 when the elevator overspeed; the elastic element 50 is used to drive the trigger member 30 to act to engage the safety clamp 20 with the guide rail to achieve braking when the electromagnet 40 loses power and releases the trigger member 30; the reset drive source 60 is used to drive the trigger member 30 to overcome the elastic element 50 and re-engage with the electromagnet 40 when the electromagnet 40 and the trigger member 30 are separated, so that the trigger member 30 and the electromagnet 40 are re-attracted together.
[0042] In Figures 1 - 3 In the structure shown, the safety clamp 20 is arranged on the first side of the mounting seat 10, and the trigger member 30, the electromagnet 40, the elastic element 50, and the reset drive source 60 are arranged on the second side of the mounting seat 10. The elevator safety protection device 100 further includes a connecting shaft 70 passing through the mounting seat 10. Its first end is located on the first side of the mounting seat 10 and is connected to the lifting arm 21 of the safety clamp 20; its second end is located on the second side of the mounting seat 10 and is connected to the trigger member 30. Further, the elastic element 50 and the electromagnet 40 are respectively located on both sides of the connecting part of the trigger member 30 and the connecting shaft 70.
[0043] Specifically, when the elevator is operating normally, the electromagnet 40 attracts the trigger member 30. The trigger member 30 acts on the lifting arm 21 of the safety clamp 20 through the connecting shaft 70, so that the safety clamp 20 remains separated from the elevator guide rail and does not affect the normal movement of the car. When the car of the elevator is overspeed, the speed detection device generates an overspeed signal. In response to the overspeed signal, the electromagnet 40 loses power and releases the trigger member 30. Moreover, under the action of the elastic element 50, the trigger member 30 drives the lifting arm 21 of the safety clamp 20 to act through the connecting shaft 70, so that the safety clamp 20 is combined with the guide rail to achieve braking. When the reset drive source 60 drives the trigger member 30 to overcome the elastic element 50 and recombine with the electromagnet 40, the trigger member 30 drives the lifting arm 21 of the safety clamp 20 to act through the connecting shaft 70, so that the safety clamp 20 is separated from the elevator guide rail.
[0044] It should be understood that in Figures 1 - 3 the structure shown, the safety clamp 20 and the components for driving the safety clamp 20 to act are respectively arranged on both sides of the mounting seat, and a connecting shaft is used to pass through the mounting seat to connect the components on both sides, and the structure is very compact and reliable.
[0045] Embodiment 2
[0046] Refer to Figures 4 - 5 , the elevator safety protection device 100 includes a mounting seat 10, a safety clamp 20, a trigger member 30, an electromagnet 40, an elastic element 50, and a reset drive source 60. Among them, the trigger member 30 is installed on the mounting seat 10; the safety clamp 20 can be driven by the trigger member 30 to be combined with or separated from the guide rail; the electromagnet 40 is used to attract the trigger member 30 to keep the safety clamp 20 separated from the elevator guide rail, and can lose power and release the trigger member 30 when the elevator is overspeed; the elastic element 50 is used to drive the trigger member 30 to act when the electromagnet 40 loses power and releases the trigger member 30, so that the safety clamp 20 is combined with the guide rail to achieve braking; the reset drive source 60 is used to drive the trigger member 30 to overcome the elastic element 50 and recombine with the electromagnet 40 when the electromagnet 40 and the trigger member 30 are separated, so that the trigger member 30 and the electromagnet 40 are re-attracted together.
[0047] In Figures 4 - 5 the structure shown, the elevator safety protection device 100 further includes a rotating shaft 80; the rotating shaft 80 is axially rotatably installed on the mounting seat 10; the rotating shaft 80 is fixedly connected to the lifting arms 21 of a plurality of safety clamps 20; there is a connection relationship between the trigger member 30 and the rotating shaft 80, so that the trigger member 30 can drive all the safety clamps 20 to act simultaneously through the rotating shaft 80.
[0048] Specifically, when the elevator is operating normally, the electromagnet 40 attracts the trigger member 30. The trigger member 30 acts on the lifting arms 21 of multiple safety clamps 20 through the connection relationship with the rotating shaft 80, so that the multiple safety clamps 20 are separated from the elevator guide rails and do not affect the normal movement of the car. When the car of the elevator is overspeed, the speed detection device generates an overspeed signal. In response to the overspeed signal, the electromagnet 40 loses power and releases the trigger member 30. Moreover, under the action of the elastic element 50, the trigger member 30 drives the lifting arms 21 of the multiple safety clamps 20 to act through the rotating shaft 80, so that the multiple safety clamps 20 are combined with the corresponding guide rails to achieve braking. When the reset drive source 60 drives the trigger member 30 to overcome the elastic element 50 and recombine with the electromagnet 40, the trigger member 30 drives the lifting arms 21 of the multiple safety clamps 20 to act through the rotating shaft 80, so that the multiple safety clamps 20 are separated from the corresponding elevator guide rails.
[0049] Further, the trigger member 30 is rotatably mounted on the mounting seat 10, and the trigger member 30 is connected to a swing arm on the rotating shaft 80 through a pull rod 90. In a specific solution, the swing arm is the lifting arm 21 of one of the safety clamps 20. In a specific solution, the elastic element 50 and the electromagnet 40 are respectively located on both sides of the connection part between the trigger member 30 and the mounting seat 10.
[0050] It should be understood that in Figures 4 - 5 the structure shown, by fixedly connecting the lifting arms 21 of the multiple safety clamps 20 to the rotating shaft 80 and setting a connection relationship between the trigger member 30 and the rotating shaft 80, the trigger member 30 can drive all the safety clamps 20 to act simultaneously through the rotating shaft 80. Therefore, through the above structure, the trigger member can drive multiple safety clamps to act simultaneously.
[0051] Embodiment III
[0052] Refer to Figure 6 , this embodiment also provides an elevator installation protection system, including: the elevator safety protection device 100 provided in the previous part, and the speed detection device 200. The speed detection device 200 is used to detect the running speed of the elevator car; the electromagnet 40 of the elevator safety protection device 100 can be linked with the speed detection device 200, so as to lose power and release the trigger member 30 when the elevator car is overspeed, so that the safety clamp 20 brakes.
[0053] Specifically, the speed detection device can specifically be various types of sensors, for example, various types of speed measurement sensors, for directly or indirectly measuring the running speed of the car. The speed detection device can generate a signal for reflecting the running speed of the car. When the speed detection device detects that the car is overspeed, the electromagnet loses power and releases the trigger member, so that the safety clamp brakes, realizing the safety protection of the elevator.
[0054] In addition, regarding the relevant technical features and technical effects of the elevator safety protection device, refer to the description in the previous part, which will not be elaborated here.
[0055] Embodiment 4
[0056] Reference Figure 7 , this embodiment also provides an elevator, which includes an elevator installation protection system. Specifically, as Figure 7 shown, the elevator includes guide rails 300 and a car 400. The guide rails 300 are used to guide the car 400 to move up and down, and the elevator installation protection system is used to provide safety protection for the car. Specifically, when the speed detection device detects that the car is overspeed, the electromagnet loses power to release the trigger, causing the safety clamp to brake and realizing the safety protection of the elevator. In addition, regarding the description of the elevator installation protection system, refer to the content in the previous part, which will not be elaborated here.
[0057] Based on the embodiments of the present application, it can be understood that when the elevator is operating normally, the safety clamp is kept separated from the elevator guide rail by the electromagnet attracting the trigger. When the elevator is overspeed, the electromagnet loses power to release the trigger, and the elastic element drives the trigger to act so that the safety clamp is combined with the guide rail to achieve braking. The reset drive source is used to drive the trigger to overcome the elastic element and re-combine with the electromagnet when the electromagnet and the trigger are separated. The elevator safety protection device provided by the present application has a simple structure, less action transmission during braking, high reliability, and low cost.
[0058] In the above embodiments of the present application, the descriptions of each embodiment have their own emphases. For the parts not elaborated in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0059] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0060] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.
Claims
1. An elevator safety protection device, characterized in that: It includes a mounting seat, a safety clamp, a trigger, an electromagnet, an elastic element, and a reset drive source; wherein the trigger is mounted on the mounting seat; and the safety clamp can be driven by the trigger to be coupled with or separated from the guide rail; The electromagnet is used to attract the trigger to keep the safety clamp separated from the elevator guide rail, and can release the trigger when power is lost when the elevator is overspeeding; The elastic element is used to drive the trigger member to move so that the safety clamp is combined with the guide rail to achieve braking when the electromagnet loses power and releases the trigger member; The reset driving source is used to drive the triggering member to overcome the elastic element and re-combine with the electromagnet when the electromagnet and the triggering member are separated, so as to make the triggering member and the electromagnet re-attracted together.
2. The elevator safety protection device according to claim 1, characterized in that: The safety clamp is arranged on a first side of the mounting seat, and the trigger member, the electromagnet, the elastic element, and the reset drive source are arranged on a second side of the mounting seat; The elevator safety protection device also includes a connecting shaft, which passes through the mounting seat, and a first end of the connecting shaft is located on the first side of the mounting seat and connected to the lifting arm of the safety clamp; a second end of the connecting shaft is located on the second side of the mounting seat and connected to the trigger member.
3. The elevator safety protection device according to claim 2, characterized in that: The elastic element and the electromagnet are respectively located on both sides of the connection portion between the trigger member and the connection shaft.
4. The elevator safety protection device according to claim 1, characterized in that: The elevator safety protection device further includes a first detector, which is used to detect whether the reset drive source is reset; The elevator safety protection device also includes a second detector, which is used to detect the operating state of the safety clamp.
5. The elevator safety protection device according to claim 1, characterized in that: The elevator safety protection device also includes a rotating shaft; the rotating shaft is axially rotatably mounted on the mounting seat; The rotating shaft is fixedly connected to the lifting arms of multiple safety clamps; the trigger member is connected to the rotating shaft, so that the trigger member can drive all the safety clamps to operate simultaneously through the rotating shaft.
6. The elevator safety protection device according to claim 5, characterized in that: The trigger member is rotatably mounted on the mounting seat, and the trigger member is connected to a swing arm on the rotating shaft via a pull rod.
7. The elevator safety protection device according to claim 6, characterized in that: The swing arm is a lifting arm of one of the safety clamps.
8. The elevator safety protection device according to claim 6, characterized in that: The elastic element and the electromagnet are respectively located on two sides of the connection portion between the trigger member and the mounting seat.
9. An elevator installation protection system, characterized in that: include: An elevator safety protection device as claimed in any one of claims 1 to 8, and a speed detection device; The speed detection device is used to detect the running speed of the elevator car; The electromagnet of the elevator safety protection device can be linked with the speed detection device so that when the elevator car is overspeeding, the power is lost to release the trigger member, so that the safety clamp is braked.
10. An elevator, characterized in that: Comprising the elevator installation protection system as claimed in claim 9.