Elevator overspeed protection device

Abstract

The utility model discloses an elevator overspeed protection device, and particularly relates to the field of elevator overspeed protection, the elevator overspeed protection device comprises a device main body, the outer side of the device main body is provided with a speed detector, the device main body is internally provided with a gear, the right side of a rotating shaft is provided with a fixing pin, and the rear of the fixing pin is provided with an actuating rod; a rotating shaft is arranged outside the supporting frame, the stability of the device during operation is guaranteed through the design of the supporting frame and the rotating shaft, tight connection of all components is guaranteed through fixing pins, and once the speed detector detects that the elevator is overspeed, a protection mechanism can be rapidly triggered through rotation of a gear and the action of an actuating rod; if the elevator stops or decelerates, the speed detector installed on the outer side of the device body can accurately detect the running speed of the elevator, it is ensured that the elevator can make a response rapidly when the elevator is overspeed, in conclusion, the safety of the whole device is fully considered from design to implementation, and the safety of passengers and equipment is ensured to be protected through multiple protection mechanisms.

Description

Technical Field

[0001] The utility model relates to the field of elevator overspeed protection, and more specifically, to an elevator overspeed protection device. Background Art

[0002] With the development of social economy, the number of high-rise buildings is increasing, and the demand for elevators is also increasing. At the same time, people have higher and higher safety requirements for elevators. After long-term use, elevators may overspeed due to motor failure, insufficient traction and other reasons. In order to protect the safety of passengers, corresponding protective measures should be taken against elevator overspeed. Existing elevators will prevent elevator overspeed through speed limiters and safety clamps, but it is difficult to achieve foolproof protection by relying solely on safety clamps. Therefore, it is necessary to add auxiliary devices for overspeed protection on the basis of safety clamps to improve the safety performance of elevators;

[0003] After searching, the existing patent (publication number: CN 207108165 U) discloses an elevator overspeed protection device, including a wire rope speed detector, an elevator car, a guide shoe support frame arranged at the bottom of the elevator car and connected to the bottom of the elevator car, and a guide rail arranged on the wall of the hoistway; the guide rail includes a guide rail body, a guide rail groove and a speed limit groove arranged on the guide rail body, and a speed limit block with a thickness gradually increasing downward or upward along the elevator running direction is arranged in the speed limit groove; the guide shoe support frame includes a guide shoe head slidably connected to the guide rail groove, the guide shoe support frame faces the opening notch on the side of the speed limit groove, and a signal receiver, a driver, a telescopic rod and a speed limit friction block are arranged inside the notch, the speed limit friction block is connected to the telescopic rod, the telescopic rod is connected to the driver, the driver is connected to the signal receiver, and the signal receiver is connected to the wire rope speed detector. The inventor found the following problems in the prior art during the implementation of the utility model:

[0004] The existing elevator overspeed protection device has poor functionality. It cannot automatically identify the device during use and cannot protect passengers, which reduces the safety of the device during use.

[0005] Therefore, in view of the above problems, an elevator overspeed protection device is proposed. Utility Model Content

[0006] In order to overcome the above defects of the prior art, the utility model provides an elevator overspeed protection device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator overspeed protection device, comprising a device body, a speed detector is installed on the outside of the device body; an elevator door is provided on the outside of the device body, a gear is installed on the inside of the device body, a protection ring is provided on the outer end of the gear, a pulling device is connected to the top of the protection ring, a support frame is connected to the inside of the protection ring, a rotating shaft is provided on the outside of the support frame, a fixing pin is provided on the right side of the rotating shaft, an elastic device is installed on the outside of the gear, an actuating rod is provided behind the fixing pin, and a movable block is installed on the outside of the support frame.

[0008] Preferably, a connecting block is provided on the top of the device body.

[0009] Preferably, a fixing clip is connected to one side of the connecting block.

[0010] Preferably, a support rod is provided below the connection block, and the support rod is embedded in the connection block and the device body.

[0011] Preferably, a connecting rod is wrapped inside the fixing clamp, and sliding grooves are provided on both sides of the connecting rod.

[0012] Preferably, a fixing pin is provided on the outer side of the support frame, and the fixing pin is embedded in the movable block in a penetrating shape.

[0013] Preferably, an actuating rod is provided on the outside of the gear, and the actuating rod is embedded in the movable block.

[0014] Preferably, an elastic device is provided above the support frame, forming an up-and-down structure.

[0015] Technical effects and advantages of the utility model:

[0016] Compared with the prior art, when this type of elevator overspeed protection device is in use, the device body is the main part of the entire equipment, which improves the overall stability of the device. First, a speed detector is provided on the outside of the device body. When the speed reaches a certain speed, the speed detector will start the gear inside the device body. A protection ring is connected to one side of the speed detector, and a gear is provided inside the protection ring. When the gear starts to rotate, the elastic device on the outside of the gear will move upward, and an actuating rod is connected to one side of the elastic device, and a fixing pin is provided at one end of the movable block. When the elastic device moves upward, it will drive the movement of the movable block. Because a fixing pin is provided at one end of the movable block, when the speed reaches a certain level, the device can drive the movement of the actuating rod through the reaction of the speed detector, and the gear and the elastic device, and the movable block can rotate through the selective rotation effect of the rotating shaft. It is able to realize the data fed back by the speed detector and control the movement of the fixed pin, so that the rotation of the gear can be controlled, and then a leather strap is provided above the gear, and the leather strap is connected to the pulling device, so that when the gear rotates, the traction device can be moved by the leather strap, and finally, a fixing clamp is connected to one side of the connecting block, and sliding grooves are provided on both sides of the fixing clamp, and the pulling devices are all inside the support rod and the connecting block. Therefore, the device can achieve an intelligent control of overspeed through the mutual cooperation of various components inside the device body and the connection block and fixing clamp outside the device body. The function of parts can achieve a better protection effect. In summary, the device fully considers safety from design to implementation, and ensures that the elevator can stop running quickly and reliably when overspeeding through multiple protection mechanisms to protect the safety of passengers and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the internal structure of the main body of the device of the utility model.

[0019] Figure 3 This is an enlarged structural diagram of point A of the utility model.

[0020] Figure 4 It is a schematic diagram of the planar structure of the utility model.

[0021] The accompanying drawings are marked as follows: 1. device body; 2. speed detector; 3. elevator; 4. sliding groove; 5. connecting rod; 6. connecting block; 7. fixing clamp; 8. support rod; 9. gear; 10. support frame; 11. rotating shaft; 12. fixing pin; 13. driving rod; 14. elastic device; 15. protective ring; 16. pulling device; 17. movable block; 18. leather strap. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] As attached Figure 1-4 An elevator overspeed protection device shown in the figure comprises a device body 1, a speed detector 2 is installed on the outer side of the device body 1; an elevator door 3 is provided on the outer side of the device body 1, a gear 9 is installed inside the device body 1, a protection ring 15 is provided on the outer end of the gear, a pulling device 16 is connected to the top of the protection ring 15, a support frame 10 is connected to the inside of the protection ring 15, a rotating shaft 11 is provided on the outside of the support frame 10, a fixing pin 12 is provided on the right side of the rotating shaft 11, an elastic device 14 is installed on the outer side of the gear 9, a driving rod 13 is provided behind the fixing pin 12, and a movable block 17 is installed on the outer side of the support frame 10.

[0025] Among them: when the elevator overspeed protection device is in use, the device body 1 is the main part of the whole equipment, which improves the overall stability of the nursing frame. First, a speed detector 2 is provided on the outside of the device body 1. When the speed reaches a certain speed, the speed detector 2 will start the gear 9 inside the device body 1. A protection ring 15 is connected to one side of the speed detector 2, and a gear 9 is provided inside the protection ring 15. When the gear 9 starts to rotate, the elastic device 14 on the outside of the gear will move upward, and a guide rod 13 is connected to one side of the elastic device 14, and a fixed pin 12 is also provided at one end of the movable block 17. When the elastic device 14 moves upward, it will drive the movement of the movable block 17. Because a fixed pin 12 is provided at one end of the movable block 17, when the speed reaches a certain speed, the device can drive the movement of the guide rod 13 through the reaction of the speed detector 2, and the gear 9 and the elastic device 14, and the movable block 17 is rotated by the selective rotation effect of the rotating shaft 11. The result is that when the speed detector 2 feeds back data, the movement of the fixed pin 12 can be controlled, so that the rotation of the gear 9 can be controlled. Then, a leather strap 18 is provided above the gear 9, and the leather strap 18 is connected to the pulling device 16. Therefore, when the gear 9 rotates, the movement of the pulling device 16 can be carried out by the leather strap 18. Finally, a fixing clamp 7 is connected to one side of the connecting block 6, and sliding grooves 4 are provided on both sides of the fixing clamp 7. The pulling device 16 is inside the support rod 8 and the connecting block 6. Therefore, the device can achieve an intelligent control of overspeed through the mutual cooperation of the various components inside the device body 1 and the connection block 6 and the fixing clamp 7 outside the device body. The function of the parts can better achieve a protection effect. In summary, the device fully considers safety from design to implementation, and ensures that the elevator can stop running quickly and reliably when overspeeding through multiple protection mechanisms to protect the safety of passengers and equipment.

[0026] Embodiment 2

[0027] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working method, as described below:

[0028] like Figure 2 As shown, as a preferred embodiment; the elastic device 14 on the outside of the gear will move upward, and one side of the elastic device 14 is connected to a driving rod 13, and one end of the movable block 17 is also provided with a fixing pin 12. When the elastic device 14 moves upward, it will drive the movement of the movable block 17, thereby achieving an intelligent control effect.

[0029] The working process of the utility model is as follows:

[0030] When the elevator overspeed protection device is in use, the device body 1 is the main part of the whole equipment, which improves the overall stability of the nursing frame. First, a speed detector 2 is arranged on the outside of the device body 1. When the speed reaches a certain speed, the speed detector 2 will start the gear 9 inside the device body 1. A protection ring 15 is connected to one side of the speed detector 2, and a gear 9 is arranged inside the protection ring 15. When the gear 9 starts to rotate, the elastic device 14 on the outside of the gear will move upward, and an actuating rod 13 is connected to one side of the elastic device 14, and a fixing pin 12 is also arranged at one end of the movable block 17. When the elastic device 14 moves upward, it will drive the movable block 17 to move. Because a fixing pin 12 is arranged at one end of the movable block 17, when the speed reaches a certain speed, the device can drive the actuating rod 13 to move through the reaction of the speed detector 2, and the gear 9 and the elastic device 14, and the movable block 17 can rotate through the selective rotation effect of the rotating shaft 11. , so that the data fed back by the speed detector 2 can be used to control the movement of the fixed pin 12, so that the rotation of the gear 9 can be controlled. Then, a leather strap 18 is provided above the gear 9, and the leather strap 18 is connected to the pulling device 16, so that when the gear 9 rotates, the movement of the pulling device 16 can be carried out by the leather strap 18. Finally, a fixing clamp 7 is connected to one side of the connecting block 6, and sliding grooves 4 are provided on both sides of the fixing clamp 7, and the pulling device 16 is inside the support rod 8 and the connecting block 6. Therefore, the device can achieve an intelligent control of overspeed through the mutual cooperation of the components inside the device body 1 and the connection block 6 and the fixing clamp 7 outside the device body. The function of the parts can better achieve a protective effect. In summary, the device fully considers safety from design to implementation, and ensures that the elevator can stop running quickly and reliably when overspeeding through multiple protection mechanisms to protect the safety of passengers and equipment. This is the working process and working principle of the device.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An elevator overspeed protection device, comprising a device body (1), characterized in that: A speed detector (2) is installed on the outer side of the device body (1); An elevator (3) is provided on the outside of the device body (1), a gear (9) is installed inside the device body (1), a protective ring (15) is provided on the outer end of the gear (9), a pulling device (16) is connected to the top of the protective ring (15), a support frame (10) is connected to the inside of the protective ring (15), a rotating shaft (11) is provided on the outside of the support frame (10), a fixing pin (12) is provided on the right side of the rotating shaft (11), an elastic device (14) is installed on the outside of the gear (9), a driving rod (13) is provided behind the fixing pin (12), a movable block (17) is installed on the outside of the support frame (10), and leather strips (18) are connected to both sides of the protective ring (15).

2. An elevator overspeed protection device according to claim 1, characterized in that: A connecting block (6) is provided on the top of the device body (1).

3. An elevator overspeed protection device according to claim 2, characterized in that: A fixing clip (7) is connected to one side of the connection block (6).

4. An elevator overspeed protection device according to claim 2, characterized in that: A support rod (8) is provided below the connection block (6), and the support rod (8) is embedded in the connection block (6) and the device body (1).

5. An elevator overspeed protection device according to claim 3, characterized in that: The fixing clamp (7) contains a connecting rod (5) inside, and sliding grooves (4) are provided on both sides of the connecting rod (5).

6. An elevator overspeed protection device according to claim 1, characterized in that: A fixing pin (12) is provided on the outer side of the support frame (10), and the fixing pin (12) is embedded in the movable block (17) in a penetrating shape.

7. An elevator overspeed protection device according to claim 1, characterized in that: An actuating rod (13) is provided on the outside of the gear (9), and the actuating rod (13) is embedded in the inside of the movable block (17).

8. An elevator overspeed protection device according to claim 1, characterized in that: An elastic device (14) is arranged above the support frame (10), forming an up-and-down structure.

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