Elevator safety protection assembly, elevator safety protection system and elevator
By designing an elevator safety protection component including a mounting base, safety pliers, triggers, resettable electromagnets and elastic components, the problems of low reliability and high cost caused by the large number of transmission components in the prior art are solved, and high reliability and low cost elevator safety protection are achieved.
Patent Information
- Application Number
- CN202421727081.0
- 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 component is designed, including a mount, safety clamp, trigger, resettable solenoid and elastic element, which improves braking reliability and reduces costs by simplifying the action transfer path.
It realizes quick and reliable braking when the elevator is overspeeded, improves the reliability of elevator safety protection and reduces costs.
Smart Images
Figure CN222922715U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of elevator safety, and particularly to an elevator safety protection component, an elevator safety protection system, and an elevator. Background Art
[0002] The safety tong is a safety protection device for an elevator. Under the control of a speed limiter, when the elevator speed exceeds the limiting speed defined by the elevator speed limiter, or in the case of breakage and slack of the suspension rope, 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 component, an elevator safety protection system, and an elevator in view of the above deficiencies of the prior art.
[0004] An elevator safety protection component, the elevator safety protection component includes: a mounting seat, a safety tong, a trigger, a resetable electromagnet, and an elastic element; wherein, the trigger is mounted on the mounting seat; the safety tong can be driven by the trigger to engage or disengage with the guide rail, and when the trigger is in the first position state, it corresponds to the safety tong being in the engaged state with the guide rail, and when the trigger is in the second position state, it corresponds to the safety tong being in the disengaged state with the guide rail;
[0005] The resetable electromagnet can drive the trigger to move from the first position state to the second position state when powered on or apply an action to the trigger to keep the trigger in the second position state; the elastic element can drive the trigger to move from the second position state to the first position state when the resetable electromagnet loses power and releases the trigger.
[0006] Optionally, the trigger is rotatably mounted, and the trigger realizes the conversion between the first position state and the second position state through rotation.
[0007] Optionally, the safety tong is arranged on the first side of the mounting seat, and the trigger, the resetable electromagnet, and the elastic element are arranged on the second side of the mounting seat;
[0008] The elevator safety protection component 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 tong, and its second end is located on the second side of the mounting seat and is connected to the trigger.
[0009] Optionally, the elastic element and the resetable electromagnet are located on the same side of the connection part between the trigger and the connecting shaft.
[0010] Optionally, a guide rod is further fixed on the mounting base, and the guide rod passes through the opening on the trigger; the elastic element is a spring sleeved on the guide rod.
[0011] Optionally, the elevator safety protection assembly further includes a safety clamp detector for detecting the operating states of the safety clamp and the resetable electromagnet.
[0012] Optionally, the safety clamp detector is specifically a position switch configured to detect the position of the trigger.
[0013] Optionally, the resetable electromagnet is a push-pull electromagnet, and the trigger is hinged to the moving iron core of the push-pull electromagnet.
[0014] On the other hand, the present application further provides an elevator safety protection system, including: the above-mentioned elevator safety protection assembly, and a speed detection device;
[0015] The speed detection device is used to detect the running speed of the elevator car; the resetable electromagnet of the elevator safety protection assembly can be linked with the speed detection device so that when the elevator car is overspeed, the trigger is released when powered off, and the trigger moves from the second position state to the first position state under the drive of the elastic element.
[0016] On the other hand, the present application further provides an elevator including the above-mentioned elevator safety protection system.
[0017] In the present application, when the elevator is running, the resetable electromagnet applies an action to the trigger to keep the trigger in the second position state, and the safety clamp is separated from the guide rail. When the elevator is overspeed, the resetable electromagnet is powered off to release the trigger. At this time, when the elevator car is overspeed, the trigger is released when powered off, and the trigger moves from the second position state to the first position state under the drive of the elastic element, and the safety clamp is combined with the guide rail to achieve braking. During reset, the resetable electromagnet is adjusted to be powered on again, and the resetable electromagnet drives the trigger to move from the first position state to the second position state, so that the safety clamp is separated from the guide rail. The elevator safety protection assembly provided by the present application has a simple structure, less action transmission during braking, high reliability, and low cost. Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of the elevator safety protection assembly in an embodiment of the present application.
[0019] Figure 2 It is another schematic structural diagram of the elevator safety protection component in the embodiment of the present application.
[0020] Figure 3 It is another schematic structural diagram of the elevator safety protection component in the embodiment of the present application.
[0021] Figure 4 It is another schematic structural diagram of the elevator safety protection component in the embodiment of the present application.
[0022] Figure 5 It is a schematic block diagram of the elevator safety protection system in the embodiment of the present application.
[0023] Figure 6 It is a schematic structural diagram of the elevator in the embodiment of the present application.
[0024] Reference numerals:
[0025] Elevator safety protection component 100, mounting base 10, guide rod 11, safety clamp 20, lifting arm 21, trigger member 30, resetable electromagnet 40, moving iron core 41, elastic element 50, connecting shaft 60, safety clamp detector 70, speed detection device 200, guide rail 300, car 400. Detailed implementation manners
[0026] 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, providing specific details such as specific configurations and components is only to help comprehensively understand 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 here 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.
[0027] It should be noted that, without conflict, the implementation manners in the present application and the features in the implementation manners can be combined with each other.
[0028] The elevator safety protection component provided by the present application is installed on the car and is used for braking when the elevator is overspeed, and can urgently stop the car on the guide rail in an emergency. The elevator safety protection component provided by the present application has few action transmissions during braking, high reliability, and low cost.
[0029] Reference Figures 1 - 4, the elevator safety protection component 100 includes a mounting base 10, a safety gear 20, a trigger member 30, a resetable electromagnet 40, and an elastic element 50. Among them, the trigger member 30 is mounted on the mounting base 10. The safety gear 20 can be driven by the trigger member 30 to engage or disengage with the guide rail 300. Moreover, when the trigger member 30 is in the first position state, it corresponds to the safety gear 20 being in the engaged state with the guide rail 300, and when the trigger member 30 is in the second position state, it corresponds to the safety gear 20 being in the disengaged state with the guide rail 300.
[0030] In the safety gear, the lifting arm is used to drive the wedge block to engage or disengage with the guide rail. The trigger member can drive the lifting arm to act. Therefore, the safety gear can be driven by the trigger member. Under the drive of the trigger member, the safety gear engages or disengages with the guide rail. Specifically, the trigger member can move to the first position state to make the safety gear engage with the guide rail, or move to the second position state to make the safety gear disengage from the guide rail.
[0031] Furthermore, the resetable electromagnet 40 can drive the trigger member 30 to move from the first position state to the second position state when powered on or apply an action to the trigger member 30 to keep the trigger member 30 in the second position state. The elastic element 50 can drive the trigger member 30 to move from the second position state to the first position state when the resetable electromagnet 40 loses power and releases the trigger member 30.
[0032] When the elevator is in the normal operating state, the resetable electromagnet is in the powered-on state, and it applies an action to the trigger member to keep the trigger member in the second position state. At this time, the safety gear remains disengaged from the guide rail, and the safety gear does not brake.
[0033] When the elevator car overspeed, the speed detection device generates an overspeed signal. In response to the overspeed signal, the resetable electromagnet 40 loses power and releases the trigger member 30. At this time, the trigger member 30 can move freely, and under the drive of the elastic element 50, the trigger member 30 moves from the second position state to the first position state, and the trigger member 30 drives the safety gear 20 to engage with the guide rail to achieve braking. The above braking process provides braking protection when the elevator car overspeed.
[0034] When it is necessary to reset the elevator safety protection component 100 from the braking protection, the resetable electromagnet 40 is powered on again, driving the trigger member 30 to overcome the elastic element 50 and move from the first position state to the second position state. At the same time, the trigger member 30 drives the safety gear 20 to disengage from the guide rail 300. After resetting, the resetable electromagnet is in the powered-on state to keep the trigger member in the second position state. At this time, the safety gear remains disengaged from the guide rail, and the safety gear does not brake, for the elevator.
[0035] In an embodiment of the present application, the reset electromagnet 40 is a push-pull electromagnet, and the trigger member 30 is hinged to the moving iron core 41 of the push-pull electromagnet. When the push-pull electromagnet is energized, the moving iron core 41 applies a force to the trigger member 30, causing the trigger member 30 to move from the first position state to the second position state, or causing the trigger member 30 to remain in the second position state.
[0036] In an embodiment of the present application, the elevator safety protection assembly 100 further includes a safety clamp detector 70, which is used to detect the operating states of the safety clamp 20 and the reset electromagnet 40. Specifically, the safety clamp detector 70 can be used to detect the operating state of the safety clamp 20, and 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. Further, the safety clamp detector 70 can indirectly detect the operating state of the safety clamp 20 by detecting the positions of relevant moving components. In a specific solution, the safety clamp detector 70 is used to detect the position of the trigger member 30, and the operating state of the safety clamp 20 is determined based on the position of the trigger member 30, thereby achieving indirect detection of the operating state of the safety clamp 20. In addition, the safety clamp detector 70 can also be used to detect the operating state of the reset electromagnet 40 at the same time.
[0037] In a specific embodiment, the safety clamp detector 70 is specifically a position switch, which is set to detect the position of the trigger member 30. In a specific example, referring to Figure 2 , when the trigger member 30 is in the second position state, the moving iron core 41 of the reset electromagnet 40 is in the retracted state, and the safety clamp 20 is separated from the guide rail. In this position, the trigger member 30 triggers the position switch, and the position switch emits a corresponding position signal. When the trigger member 30 moves to the first position state, the moving iron core 41 of the reset electromagnet 40 is in the extended state, and the safety clamp 20 is engaged with the guide rail. In this position, the trigger member 30 is separated from the position switch, and the situation of this position is not shown in the drawings. In this solution, the position switch is triggered by the trigger member 30, and the signal of the position switch can directly reflect the position state of the trigger member 30 and is used to indirectly determine the operating states of the safety clamp 20 and the reset electromagnet 40.
[0038] In an embodiment of the present application, a guide rod 11 is further fixed on the mounting seat 10, and the guide rod 11 passes through the opening on the trigger member 30; the elastic element 50 is a spring sleeved on the guide rod 11. Here, the guide rod 11 can be used to guide the telescopic movement of the spring; when the reset electromagnet is in the energized state and the trigger member is in the second position state, the spring is in a compressed state. At this time, if the elevator overspeed causes the reset electromagnet 40 to lose power, the trigger member 30 moves from the second position state to the first position state under the drive of the elastic element 50.
[0039] In an embodiment of the present application, the trigger member 30 is rotatably mounted, and the trigger member 30 realizes the conversion between the first position state and the second position state by rotation. Under this setting, the first position state and the second position state correspond to two angular positions of the trigger member 30, and the trigger member can be rotated to the first position state and the second position state.
[0040] Further, the safety clamp 20 is arranged on the first side of the mounting seat 10, and the trigger member 30, the resetable electromagnet 40, and the elastic element 50 are arranged on the second side of the mounting seat 10; the elevator safety protection assembly 100 further includes a connecting shaft 60. The connecting shaft 60 passes 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, and 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 resetable electromagnet 40 are located on the same side of the connecting portion between the trigger member 30 and the connecting shaft 60.
[0041] Specifically, when the elevator is in the normal running state, the resetable electromagnet is in the energized state and exerts an action on the trigger member. The trigger member acts on the lifting arm 21 of the safety clamp 20 through the connecting shaft 60, so that the safety clamp 20 is 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 resetable electromagnet 40 loses power and releases the trigger member 30. Driven by the elastic element 50, the trigger member 30 drives the safety clamp 20 to engage with the guide rail through the connecting shaft 60 to achieve braking. When it is necessary to reset the elevator safety protection assembly 100 from the braking protection, the resetable electromagnet 40 is re-energized, and the trigger member 30 drives the safety clamp 20 to separate from the guide rail 300 through the connecting shaft 60. In the above action process, both the trigger member 30 and the lifting arm 21 of the safety clamp 20 rotate around the connecting shaft 60.
[0042] Continue to refer to Figure 5 , the embodiment of the present application further provides an elevator safety protection system. The elevator safety protection system includes the above-mentioned elevator safety protection assembly 100 and a speed detection device 200. Among them, the speed detection device 200 is used to detect the running speed of the elevator car 400; the resetable electromagnet 40 of the elevator safety protection assembly 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 400 is overspeed, so that the trigger member 30 moves from the second position state to the first position state under the drive of the elastic element 50.
[0043] Specifically, the speed detection device can specifically be various types of sensors. For example, various types of speed measurement sensors are used to directly or indirectly measure 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 resetable electromagnet 40 loses power and releases the trigger, causing the safety clamp to brake and realizing the safety protection of the elevator.
[0044] In addition, for the relevant technical features and technical effects of the elevator safety protection component, refer to the description in the previous part and will not be elaborated here.
[0045] Continue to refer to Figure 6 , the embodiment of the present application also provides an elevator, and this elevator includes the above-mentioned elevator safety protection system. Specifically, as Figure 6 shown, the elevator includes a guide rail 300 and a car 400. The guide rail 300 is 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 resetable electromagnet loses power and releases the trigger, causing the safety clamp to brake and realizing the safety protection of the elevator. In addition, for the description of the elevator installation protection system, refer to the content in the previous part and will not be elaborated here.
[0046] Based on the embodiment of the present application, when the elevator is running, the resetable electromagnet applies an action to the trigger to keep the trigger in the second position state, and the safety clamp is separated from the guide rail. When the elevator is overspeed, the resetable electromagnet loses power and releases the trigger. At this time, when the elevator car is overspeed, the trigger is released when losing power, and the trigger moves from the second position state to the first position state under the drive of the elastic element, and the safety clamp is combined with the guide rail to realize braking. When resetting, adjust the resetable electromagnet to be powered on again, and the resetable electromagnet drives the trigger to move from the first position state to the second position state, separating the safety clamp from the guide rail. The elevator safety protection component provided by the present application has a simple structure, less action transmission during braking, high reliability, and low cost.
[0047] In the above embodiments of the present application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined. It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, 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 specify the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0049] 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 methods 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 component, characterized in that: The elevator safety protection assembly comprises: a mounting seat, a safety clamp, a trigger, a resettable electromagnet, and an elastic element; wherein the trigger is mounted on the mounting seat; the safety clamp can be coupled with or separated from the guide rail by the drive of the trigger, and when the trigger is in a first position state, the safety clamp and the guide rail are in a coupled state, and when the trigger is in a second position state, the safety clamp and the guide rail are in a separated state; The resettable electromagnet can drive the trigger member to move from the first position state to the second position state or exert an action on the trigger member to keep the trigger member in the second position state when energized; the elastic element can drive the trigger member to move from the second position state to the first position state when the resettable electromagnet loses power and releases the trigger member.
2. The elevator safety protection assembly according to claim 1, characterized in that: The trigger member is rotatably installed, and the trigger member realizes the conversion between the first position state and the second position state by rotating.
3. The elevator safety protection assembly according to claim 2, characterized in that: The safety clamp is arranged on a first side of the mounting seat, and the trigger, the resettable electromagnet, and the elastic element are arranged on a second side of the mounting seat; The elevator safety protection component also includes a connecting shaft, which passes through the mounting seat, a first end of which is located on the first side of the mounting seat and connected to the lifting arm of the safety clamp, and a second end of which is located on the second side of the mounting seat and connected to the trigger member.
4. The elevator safety protection assembly according to claim 3, characterized in that: The elastic element and the resettable electromagnet are located on the same side of the connection portion between the trigger member and the connection shaft.
5. The elevator safety protection assembly according to claim 1, characterized in that: A guide rod is also fixed on the mounting seat, and the guide rod passes through the opening on the trigger member; the elastic element is a spring sleeved on the guide rod.
6. The elevator safety protection assembly according to claim 1, characterized in that: The elevator safety protection component also includes a safety clamp detector, which is used to detect the operating states of the safety clamp and the resettable electromagnet.
7. The elevator safety protection assembly according to claim 6, characterized in that: The safety clamp detector is specifically a position switch, which is configured to detect the position of the trigger member.
8. The elevator safety protection assembly according to claim 1, characterized in that: The resettable electromagnet is a push-pull electromagnet, and the trigger member is hinged to the moving iron core of the push-pull electromagnet.
9. An elevator safety protection system, characterized in that: include: An elevator safety protection component 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 resettable electromagnet of the elevator safety protection component can be linked with the speed detection device so that when the elevator car is overspeeding, the power is lost and the trigger is released, so that the trigger moves from the second position state to the first position state under the drive of the elastic element.
10. An elevator, characterized in that: Comprising the elevator safety protection system as claimed in claim 9.