Direct-push type electromagnetic triggering and resetting safety clamp braking device
By using a safety clamp brake device with direct push electromagnetic triggering and reset in the elevator, the problem of traditional safety clamps occupying space and weight is solved, achieving more efficient space saving and safety improvement.
Patent Information
- Application Number
- CN202421419428.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The safety clamp triggered by the traditional mechanical linkage method occupies the bottom or upper beam space of the elevator car or counterweight device, resulting in a larger size, heavy weight, and difficult to install and debug.
The safety clamp brake device with direct push electromagnetic triggering and reset is adopted, including a bracket, an adsorption assembly and a brake assembly. The power loss trigger is achieved through the electromagnet and the electromagnetic suction cup, reducing the occupation of the bottom beam or upper beam space.
It saves the space of the bottom beam or upper beam of the elevator car or counterweight device, reduces the weight, reduces the difficulty of debugging on-site installation, and does not have a delay difference in power failure triggering, which improves safety.
Smart Images
Figure CN222498262U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator safety, in particular to a direct-push electromagnetically triggered and reset safety clamp brake device. Background Art
[0002] The safety clamp is a braking device used when the elevator runs out of control. When the elevator loses control, it clamps the guide rails so that the car or counterweight can be stopped in time to ensure the safety of people and objects in the car.
[0003] Conventional safety clamps are installed on the bottom beam or upper beam of the car or counterweight device, and two or more safety clamps need to be activated at the same time. Therefore, the traditional safety clamps are triggered by mechanical linkage to make two or more safety clamps act at the same time. Due to the existence of the linkage device, part of the space of the bottom beam or upper beam is occupied, resulting in the car or counterweight size of the traditional mechanical linkage triggering safety clamps being relatively large and heavy. Summary of the invention
[0004] The utility model aims to provide a direct-push electromagnetically triggered and reset safety clamp brake device, which saves the bottom beam or upper beam space of the elevator car or the counterweight device, reduces the weight, does not require additional debugging of the linkage mechanism, reduces the difficulty of debugging the safety clamp on-site installation, adopts power-off triggering, does not have a delay difference, and has high safety.
[0005] To achieve the above-mentioned purpose, the utility model provides a direct-push electromagnetic triggered and reset safety clamp brake device, including a bracket, on which an adsorption assembly and a brake assembly are provided, the adsorption assembly includes an electromagnet, the electromagnet is connected to a connecting rod, the top of the connecting rod is connected to a guide plate, and a suction plate is provided on the inner side of the top of the guide plate.
[0006] Preferably, an electromagnetic suction cup is provided below the suction plate, a suction cup support plate is provided below the electromagnetic suction cup, the electromagnetic suction cup is fixed on the suction cup support plate, the brake assembly is provided below the suction cup support plate, and the suction cup support plate is fixed on the brake assembly.
[0007] Preferably, the electromagnet is placed inside the support frame, the support frame is connected to the bracket, the connecting rod passes through the electromagnet and the support frame, a compression spring is provided on the outside of the connecting rod between the guide plate and the support frame, and a limiting nut is provided at the bottom end of the connecting rod.
[0008] Preferably, the brake assembly includes a caliper body, a trapezoidal groove is provided on the caliper body, a circular groove is provided at the slope bottom of the trapezoidal groove, a roller is provided in the circular groove, the roller is fixed on the guide plate, two sliding rods are provided on the caliper body, and limit blocks are provided at the ends of the two sliding rods.
[0009] Preferably, the pliers body is fixed on the bracket, a micro switch is fixed on the outside of the bracket, and the suction cup support plate is fixed on the pliers body.
[0010] Therefore, the utility model adopts the above-mentioned direct-push electromagnetic triggering and resetting safety clamp brake device, which saves the bottom beam or upper beam space of the elevator car or counterweight device, reduces the weight, does not require additional debugging of the linkage mechanism, reduces the difficulty of debugging the safety clamp on-site installation, adopts power-off triggering, has no delay difference, and has high safety.
[0011] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a direct-push electromagnetic triggering and resetting safety clamp brake device of the utility model;
[0013] Figure 2 It is a front view of an embodiment of a direct-push electromagnetically triggered and reset safety clamp brake device of the utility model;
[0014] Figure 3 The utility model is a side view of an embodiment of a direct-push electromagnetic triggering and resetting safety clamp brake device.
[0015] Reference numerals
[0016] 1. Guide plate; 2. Suction plate; 3. Electromagnetic suction cup; 4. Suction cup support plate; 5. Clamp body; 6. Micro switch; 7. Roller; 8. Compression spring; 9. Electromagnet; 10. Bracket. DETAILED DESCRIPTION
[0017] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.
[0018] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0019] Embodiment 1
[0020] like Figures 1 to 3 As shown, the utility model provides a direct-push electromagnetic trigger and reset safety clamp brake device, including a bracket 10, which is convenient for installation and support. The bracket 10 is provided with an adsorption assembly and a brake assembly, and the adsorption assembly includes an electromagnet 9, and the electromagnet 9 is connected to a connecting rod, and the top of the connecting rod is connected to a guide plate 1, and a suction plate 2 is provided on the inner side of the top of the guide plate 1, and the guide plate 1 provides support for the suction plate 2. An electromagnetic suction cup 3 is provided below the suction plate 2, and the electromagnetic suction cup 3 will generate magnetism to adsorb the suction plate 2 when it is energized. A suction cup support plate 4 is provided below the electromagnetic suction cup 3, and the electromagnetic suction cup 3 is fixed on the suction cup support plate 4, and the suction cup support plate 4 provides support for the electromagnetic suction cup 3. A brake assembly is provided below the suction cup support plate 4, and the suction cup support plate 4 is fixed on the brake assembly, and the brake assembly provides support for the suction cup support plate 4.
[0021] The electromagnet 9 is placed inside the support frame, and the support frame is connected to the bracket 10, and the support frame provides support for the electromagnet 9. The connecting rod runs through the electromagnet 9 and the support frame, and the connecting rod moves downward when the guide plate 1 moves downward. A compression spring 8 is provided on the outside of the connecting rod between the guide plate 1 and the support frame. After power is cut off, the magnetism of the electromagnetic suction cup 3 disappears, and the guide plate 1 moves upward under the action of the compression spring 8. A limit nut is provided at the bottom end of the connecting rod, and the limit nut can limit the guide plate 1 to prevent the guide plate 1 from flying out with the connecting rod under the action of the compression spring 8.
[0022] The brake assembly includes a caliper body 5, on which a trapezoidal groove is provided, and a circular groove is provided at the bottom of the slope of the trapezoidal groove, and a roller 7 is provided in the circular groove, and the roller 7 can move along the slope. The roller 7 is fixed on the guide plate 1 and follows the guide plate 1 to rise and fall. The caliper body 5 is provided with two slide bars, and the guide plate 1 is correspondingly provided with two slide grooves, which can limit the rise and fall of the guide plate 1. Limit blocks are provided at the ends of the two slide bars, and the limit blocks can prevent separation from the guide plate 1. The caliper body 5 is fixed on the bracket 10, and the bracket 10 provides support for the caliper body 5. A micro switch 6 is fixed on the outside of the bracket 10, and the micro switch 6 can control whether the traction machine is powered on. The suction cup support plate 4 is fixed on the caliper body 5, and the caliper body 5 provides support for the suction cup support plate 4.
[0023] When using the direct-push electromagnetic trigger and reset safety clamp brake device provided by the utility model, the device is first installed on the elevator so that the guide rail is located in the trapezoidal groove of the clamp body 5. Then, the electromagnet 9 is energized so that the electromagnetic chuck 3 is in a long-powered suction state. At this time, the guide plate 1 is in the lowest position so that the roller 7 is located in the circular groove of the clamp body 5. There are gaps on both sides of the guide rail, which do not participate in the braking of the guide rail and do not affect the normal operation of the elevator.
[0024] When the elevator is overspeeding, the speed limiter or speed detection device will cut off the power to the electromagnetic suction cup 3. At the same time, the electromagnetic suction cup 3 releases the suction force, and the compression spring 8 lifts the guide plate 1, and makes the roller 7 move upward along the clamp body 5 and contact the guide rail. At this time, the micro switch 6 controls the traction machine to cut off the power to stop the traction machine. After that, the friction force makes the roller 7 continue to move upward until the roller 7 is self-locked between the inclined surface of the clamp body 5 and the guide rail to achieve braking.
[0025] Therefore, the utility model adopts the above-mentioned direct-push electromagnetic triggering and resetting safety clamp brake device, which saves the bottom beam or upper beam space of the elevator car or counterweight device, reduces the weight, does not require additional debugging of the linkage mechanism, reduces the difficulty of debugging the safety clamp on-site installation, adopts power-off triggering, has no delay difference, and has high safety.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.
Claims
1. A direct-push electromagnetically triggered and reset safety clamp brake device, characterized in that: It comprises a bracket, on which an adsorption component and a brake component are arranged, the adsorption component comprises an electromagnet, the electromagnet is connected to a connecting rod, the top end of the connecting rod is connected to a guide plate, and a suction plate is arranged on the inner side of the top of the guide plate.
2. A direct-push electromagnetically triggered and reset safety clamp brake device according to claim 1, characterized in that: An electromagnetic suction cup is provided below the suction plate, a suction cup support plate is provided below the electromagnetic suction cup, the electromagnetic suction cup is fixed on the suction cup support plate, the brake assembly is provided below the suction cup support plate, and the suction cup support plate is fixed on the brake assembly.
3. A direct-push electromagnetically triggered and reset safety clamp brake device according to claim 1, characterized in that: The electromagnet is placed inside the support frame, the support frame is connected to the bracket, the connecting rod passes through the electromagnet and the support frame, a compression spring is provided on the outside of the connecting rod between the guide plate and the support frame, and a limiting nut is provided at the bottom end of the connecting rod.
4. A direct-push electromagnetically triggered and reset safety clamp brake device according to claim 2, characterized in that: The brake assembly includes a caliper body, a trapezoidal groove is provided on the caliper body, a circular groove is provided at the slope bottom of the trapezoidal groove, a roller is provided in the circular groove, the roller is fixed on the guide plate, two sliding rods are provided on the caliper body, and limit blocks are provided at the ends of the two sliding rods.
5. A direct-push electromagnetically triggered and reset safety clamp brake device according to claim 4, characterized in that: The clamp body is fixed on the bracket, a micro switch is fixed on the outer side of the bracket, and the suction cup support plate is fixed on the clamp body.